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1

Mini-mastoidectomía para anastomosis hipogloso-facial con sección parcial del nervio hipogloso  

PubMed Central

Introducción: La anastomosis hipogloso-facial es la técnica de elección para la reparación de la parálisis facial cuando no se dispone de un cabo proximal sano del nervio facial. La técnica de anastomosis mediante fresado mastoideo y sección parcial del hipogloso minimiza la atrofia lingual sin sacrificar resultados a nivel facial. Método: La porción mastoidea del nervio facial transcurre por la pared anterior de la AM, a un promedio de 18+/-3 mm de profundidad respecto de la pared lateral. Se debe reconocer la cresta supramastoidea, desde la cual se marca una línea vertical paralela al eje mayor de la AM, 1 cm por detrás de la pared posterior del CAE El fresado se comienza desde la línea medio mastoidea hasta la pared posterior del CAE. Una vez encontrado el nervio facial en el tercio medio del canal mastoideo, el mismo es seguido hacia proximal y distal. Resultados: El abordaje descripto permite acceder al nervio facial intratemporal en su porción mastoidea, y efectuar un fresado óseo sin poner en riesgo al nervio o a estructuras vasculares cercanas. Se trata de un procedimiento técnicamente más sencillo que los abordajes amplios habitualmente utilizados al hueso temporal; no obstante su uso debe ser restringido mayormente a la anastomosis hipogloso-facial. Conclusión: Esta es una técnica relativamente sencilla, que puede ser reproducida por cirujanos sin mayor experiencia en el tema, luego de su paso por el laboratorio de anatomía. PMID:23596555

Campero, Álvaro; Ajler, Pablo; Socolovsky, Mariano; Martins, Carolina; Rhoton, Albert

2012-01-01

2

Ethnopsychiatric interpretations of schizophrenic illness: The problem of nervios within Mexican-American families  

Microsoft Academic Search

Among Mexican-American families, the concept of nervios (nerves) serves as a culturally meaningful illness category for a wide range of conditions, including schizophrenic disorders diagnosed according to psychiatric criteria. This article examines the nature and the meaning of nervios as a notion used by Mexican-American families to understand the schizophrenic illness of a relative. Family descriptions of the condition are

Janis H. Jenkins

1988-01-01

3

Examining Nervios Among Immigrant Male Farmworkers in the MICASA Study: Sociodemographics, Housing Conditions and Psychosocial Factors.  

PubMed

Nervios is a culturally defined condition of psychological stress with important implications for Latino health. Using epidemiological research methods, we examined the prevalence of nervios and associated risk factors, including drug and alcohol use, acculturation, and housing conditions in a population-based study of farm worker families in Mendota, CA (the MICASA Study). A household enumeration procedure was used for sampling, and 843 individuals were interviewed in 2006-2007. In this analysis, we present data on 422 men, 381 accompanied (family) males and 41 unaccompanied males. The prevalence of nervios was 22 %, with no difference in prevalence by household status. Low family incomes, drug use, medium/high acculturation, and poor housing conditions were associated with increased odds of nervios. Self-reported poor/fair health, depressive symptoms, and high perceived stress were also associated with nervios. Since nervios has been shown to be a clinical indicator of psychiatric vulnerability among Latinos, this analysis furthers public health goals of reducing health disparities. PMID:23784145

O'Connor, Kathleen; Stoecklin-Marois, Maria; Schenker, Marc B

2015-02-01

4

Beyond Anxious Predisposition: Do Padecer de Nervios and Ataque de Nervios Add Incremental Validity to Predictions of Current Distress among Mexican Mothers?  

PubMed Central

Background Nervios (PNRV) and ataque de nervios (ATQ) are culture-bound syndromes with overlapping symptoms of anxiety, depression, and dissociation, shown to have inconsistent associations to psychiatric disorder. Few studies test the basic assumption that PNRV and ATQ are uniformly linked to distress outcomes across Latina/o immigrant groups. This study examined: (a) the extent to which acculturative stress, Latino/U.S. American acculturation, and anxious predisposition were associated with lifetime history of ATQ and PNRV, and (b) the extent to which ATQ and PNRV add incremental validity in explaining acculturative stress and psychological distress beyond measures of anxious predisposition. Method Participants (n = 82) included Mexican mothers who completed surveys on acculturation, trait anxiety, anxiety sensitivity, lifetime ATQ/PNRV, psychological distress, and acculturative stress. Results Lifetime PNRV, but not lifetime ATQ, was significantly predictive of psychological distress. PNRV was also linked to trait anxiety. Psychometric measures of anxious predisposition (trait anxiety, anxiety sensitivity) were more robust predictors of distress outcomes than lifetime history of ATQ/PNRV. Conclusions Inquiry into lifetime history of nervios may be a useful point of entry in talking to Mexican immigrant mothers about stress and distress. However, standard tools for assessing anxiety sensitivity and trait anxiety appear most useful in identifying and explaining presence of psychological distress. Further research is needed to determine the cross-cultural relevance of trait anxiety and anxiety sensitivity, and its implications for the development of anxiety treatments that are effective across cultures. PMID:21769996

Alcántara, Carmela; Abelson, James L.; Gone, Joseph P.

2011-01-01

5

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

6

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

7

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

8

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

9

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

10

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.

11

¿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.

12

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

13

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

14

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.

15

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

16

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

17

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

18

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

19

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

20

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

21

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.

22

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

23

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

24

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

25

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

26

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

27

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.

28

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

29

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

30

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

31

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

32

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

33

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

34

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

35

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

36

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.

37

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

38

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

39

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.

40

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

41

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

42

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

43

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

44

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

45

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

46

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

47

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

48

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

49

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

50

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

51

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

52

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

53

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

54

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

55

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

56

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.

57

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.

58

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

59

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

60

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

61

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

62

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

63

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

64

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

65

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

66

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.

67

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

68

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

69

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

70

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

71

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

72

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

73

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

74

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

75

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

76

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

77

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

78

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

79

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

80

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

81

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.

82

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.

83

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

84

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

85

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

86

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

87

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

88

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

89

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

90

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

91

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...

92

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

93

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

94

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

95

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

96

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

97

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

98

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

99

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

100

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

101

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

102

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.

103

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

104

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

105

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

106

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

107

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

108

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

109

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

110

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

111

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

112

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

113

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

114

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

115

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.

116

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...

117

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

118

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

119

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

120

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

121

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

122

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

123

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

124

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

125

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

126

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

127

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

128

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.

129

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.

130

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

131

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

132

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.

133

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

134

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

135

"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

136

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

137

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

138

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

139

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

140

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

141

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

142

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

143

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.

144

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

145

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

146

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

147

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

148

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

149

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

150

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

151

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

152

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

153

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

154

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

155

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

156

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

157

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

158

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

159

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.

160

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

161

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

162

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

163

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

164

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

165

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

166

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

167

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

168

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

169

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

170

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

171

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

172

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

173

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

174

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

175

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

176

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.

177

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

178

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

179

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

180

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

181

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

182

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

183

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

184

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

185

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

186

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

187

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.

188

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

189

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

190

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

191

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

192

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

193

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

194

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

195

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

196

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

197

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

198

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

199

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

200

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

201

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

202

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

203

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

204

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

205

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.

206

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

207

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

208

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

209

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.

210

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

211

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

212

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.

213

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

214

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

215

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

216

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

217

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

218

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

219

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

220

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

221

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

222

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

223

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

224

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

225

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

226

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

227

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

228

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

229

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

230

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

231

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

232

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

233

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

234

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.

235

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

236

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

237

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

238

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

239

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

240

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

241

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

242

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

243

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

244

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

245

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

246

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

247

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.

248

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.

249

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

250

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

251

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

252

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...

253

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

254

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

255

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

256

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

257

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

258

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.

259

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

260

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

261

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

262

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

263

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

264

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

265

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.

266

[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

267

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

268

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

269

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.

270

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

271

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

272

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

273

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

274

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".

275

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

276

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

277

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

278

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

279

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

280

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

281

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

282

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

283

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

284

[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

285

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

286

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

287

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

288

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

289

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

290

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

291

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

292

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

293

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

294

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

295

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

296

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

297

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.

298

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

299

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

300

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

301

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

302

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

303

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

304

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

305

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

306

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

307

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

308

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

309

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

310

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

311

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

312

Interseismic Strain Accumulation Across Metropolitan Los Angeles: Puente Hills Thrust  

NASA Astrophysics Data System (ADS)

Twelve years of observation of the Southern California Integrated GPS Network (SCIGN) are tightly constraining the distribution of shortening across metropolitan Los Angeles, providing information on strain accumulation across blind thrust faults. Synthetic Aperture Radar Interferometry (InSAR) and water well records are allowing the effects of water and oil management to be distinguished. The Mojave segment of the San Andreas fault is at a 25° angle to Pacific-North America plate motion. GPS shows that NNE-SSW shortening due to this big restraining bend is fastest not immediately south of the San Andreas fault across the San Gabriel mountains, but rather 50 km south of the fault in northern metropolitan Los Angeles. The GPS results we quote next are for a NNE profile through downtown Los Angeles. Just 2 mm/yr of shortening is being taken up across the San Gabriel mountains, 40 km wide (0.05 micro strain/yr); 4 mm/yr of shortening is being taken up between the Sierra Madre fault, at the southern front of the San Gabriel mountains, and South Central Los Angeles, also 40 km wide (0.10 micro strain/yr). We find shortening to be more evenly distributed across metropolitan Los Angeles than we found before [Argus et al. 2005], though within the 95% confidence limits. An elastic models of interseismic strain accumulation is fit to the GPS observations using the Back Slip model of Savage [1983]. Rheology differences between crystalline basement and sedimentary basin rocks are incorporated using the EDGRN/EDCMP algorithm of Wang et al. [2003]. We attempt to place the Back Slip model into the context of the Elastic Subducting Plate Model of Kanda and Simons [2010]. We find, along the NNE profile through downtown, that: (1) The deep Sierra Madre Thrust cannot be slipping faster than 2 mm/yr, and (2) The Puente Hills Thrust and nearby thrust faults (such as the upper Elysian Park Thrust) are slipping at 9 ±2 mm/yr beneath a locking depth of 12 ±5 km (95% confidence limits). Incorporating sedimentary basin rock either reduces the slip rate by 10 per cent or increases the locking rate by 20 per cent. The 9 mm/yr rate for the Puente Hills Thrust and nearby faults exceeds the cumulative 3-5 mm/yr rate estimated using paleoseismology along the Puente Hills Thrust (1.2-1.6 mm/yr, Dolan et al. 2003), upper Elysian Park Thrust (0.6-2.2 mm/yr, Oskin et al. 2000), and western Compton Thrust (1.2 mm/yr, Leon et al. 2009], though all the paleoseismic estimates are minimums. We infer that M 7 earthquakes in northern metropolitan Los Angeles may occur more frequently that previously thought.

Argus, D.; Liu, Z.; Heflin, M. B.; Moore, A. W.; Owen, S. E.; Lundgren, P.; Drake, V. G.; Rodriguez, I. I.

2012-12-01

313

76 FR 41810 - Francis Proposed Low-Effect Habitat Conservation Plan for the Morro Shoulderband Snail, Los Osos...  

Federal Register 2010, 2011, 2012, 2013

...Snail, Los Osos, San Luis Obispo County...incidental take permit under the Endangered...community of Los Osos, San Luis Obispo County...portion of Los Osos, San Luis Obispo County...are requesting a permit for take of...

2011-07-15

314

Los Angeles, California, Radar Image, Wrapped Color as Height  

NASA Technical Reports Server (NTRS)

This topographic radar image shows the relationships of the dense urban development of Los Angeles and the natural contours of the land. The image includes the Pacific Ocean on the left, the flat Los Angeles Basin across the center, and the steep ranges of the Santa Monica and Verdugo mountains along the top. The two dark strips near the coast at lower left are the runways of Los Angeles International Airport. Downtown Los Angeles is the bright yellow and pink area at lower center. Pasadena, including the Rose Bowl, are seen half way down the right edge of the image. The communities of Glendale and Burbank, including the Burbank Airport, are seen at the center of the top edge of the image. Hazards from earthquakes, floods and fires are intimately related to the topography in this area. Topographic data and other remote sensing images provide valuable information for assessing and mitigating the natural hazards for cities such as Leangles.

This image combines two types of data from the Shuttle Radar Topography Mission. The image brightness corresponds to the strength of the radar signal reflected from the ground, while colors show the elevation as measured by SRTM. Each cycle of colors (from pink through blue back to pink) represents an equal amount of elevation difference (400 meters, or 1300 feet) similar to contour lines on a standard topographic map. This image contains about 2400 meters (8000 feet) of total relief.

The Shuttle Radar Topography Mission (SRTM), launched on February 11,2000, uses 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. The mission is 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, an additional C-band imaging antenna 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) and the German (DLR) and Italian (ASI) space agencies. It is managed by NASA's Jet Propulsion Laboratory, Pasadena, CA, for NASA's Earth Science Enterprise, Washington, DC.

Size: 41 km (25 miles) x 29 km (18 miles) Location: 34.1 deg. North lat., 118.3 deg. West lon. Orientation: North toward upper right Original Data Resolution: 30 meters (99 feet) Date Acquired: February 16, 2000

2000-01-01

315

Groundwater level status report for 2009, Los Alamos National Laboratory  

SciTech Connect

The status of groundwater level monitoring at Los Alamos National Laboratory in 2009 is provided in this report. This report summarizes groundwater level data for 179 monitoring wells, including 55 regional aquifer wells (including 11 regional/intermediate wells), 26 intermediate wells, 98 alluvial wells, and 12 water supply wells. Pressure transducers were installed in 161 monitoring wells for continuous monitoring of groundwater levels. Time-series hydrographs of groundwater level data are presented along with pertinent construction and location information for each well. The report also summarizes the groundwater temperatures recorded in intermediate and regional aquifer monitoring wells.

Koch, Richard J.; Schmeer, Sarah

2010-03-01

316

Groundwater level status report for 2010, Los Alamos National Laboratory  

SciTech Connect

The status of groundwater level monitoring at Los Alamos National Laboratory in 2010 is provided in this report. This report summarizes groundwater level data for 194 monitoring wells, including 63 regional aquifer wells (including 10 regional/intermediate wells), 34 intermediate wells, 97 alluvial wells, and 12 water supply wells. Pressure transducers were installed in 162 monitoring wells for continuous monitoring of groundwater levels. Time-series hydrographs of groundwater level data are presented along with pertinent construction and location information for each well. The report also summarizes the groundwater temperatures recorded in intermediate and regional aquifer monitoring wells and seasonal responses to snowmelt runoff observed in intermediate wells.

Koch, Richard J.; Schmeer, Sarah

2011-03-01

317

Mac configuration management at the Los Alamos National Laboratory  

SciTech Connect

The Los Alamos National Laboratory (LANL) had a need for central configuration management of non-Windows computers. LANL has three to five thousand Macs and an equal number of Linux based systems. The primary goal was to be able to inventory all non-windows systems and patch Mc OS X systems. LANL examined a number of commercial and open source solutions and ultimately selected Puppet. This paper will discuss why we chose Puppet, how we implemented it, and some lessons we learned along the way.

Marcus, Allan B [Los Alamos National Laboratory

2010-01-01

318

Status of the WNR/PSR at Los Alamos  

SciTech Connect

A proton storage ring is presently under construction at Los Alamos for initial operation in 1985 to provide the world's highest peak neutron flux for neutron scattering experiments. The operational WNR pulsed neutron source is in use for TOF instrument development and condensed matter research. Experimental results have been obtained in incoherent inelastic scattering, liquids and powder diffraction, single crystal diffraction and eV spectroscopy using nuclear resonances. Technical problems being addressed include chopper phasing, scintillator detector development, shielding and collimation. A crystal analyzer spectrometer in the constant Q configuration is being assembled. The long range plan for the WNR/PSR facility is described.

Silver, R.N.

1982-01-01

319

Quasi-optical gyrotron materials processing at Los Alamos  

SciTech Connect

Los Alamos has recently obtained and installed quasi-optical gyrotrons of 37 and 84 GHz with power outputs up to 35 kW. A quasi-optical gyrotron is unique in that the output is a Gaussian beam which can be focused and manipulated using mirrors. The Gaussian beam output is ideally suited for one and two dimensional materials processing applications such as joining and surface treatment. Working with the National Center for Manufacturing Sciences (NCMS) we have formed a consortium of companies to investigate several materials processing applications.

Katz, J.D.; Rees, D.E.

1995-05-01

320

Groundwater level status report for 2008, Los Alamos National Laboratory  

SciTech Connect

The status of groundwater level monitoring at Los Alamos National Laboratory in 2008 is provided in this report. This report summarizes groundwater level data for 179 monitoring wells, including 45 regional aquifer wells, 28 intermediate wells, 8 regional/intermediate wells, 106 alluvial wells, and 12 water supply wells. Pressure transducers were installed in 166 monitoring wells for continuous monitoring of groundwater levels. Time-series hydrographs of groundwater level data are presented along with pertinent construction and location information for each well. The report also summarizes the groundwater temperatures recorded in intermediate and regional aquifer monitoring wells.

Koch, Richard J.; Schmeer, Sarah

2009-03-01

321

Plans for a new pulsed spallation source at Los Alamos  

SciTech Connect

Los Alamos National Laboratory has proposed to change the emphasis of research at its Meson Physics Facility (LAWF) by buabg a new pulsed spallation source for neutron scattering research. The new source would have a beam power of about one megawatt shared between two neutron production targets, one operating at 20 Hz and the other at 40 Hz. It would make use of much of the existing proton linac and would be designed to accommodate a later upgrade to a beam power of 5 MW or so. A study of technical feasibility is underway and will be published later this year.

Pynn, R.

1993-06-01

322

Applications of industrial computed tomography at Los Alamos Scientific Laboratory  

SciTech Connect

A research and development program was begun three years ago at the Los Alamos Scientific Laboratory (LASL) to study nonmedical applications of computed tomography. This program had several goals. The first goal was to develop the necessary reconstruction algorithms to accurately reconstruct cross sections of nonmedical industrial objects. The second goal was to be able to perform extensive tomographic simulations to determine the efficacy of tomographic reconstruction with a variety of hardware configurations. The final goal was to construct an inexpensive industrial prototype scanner with a high degree of design flexibility. The implementation of these program goals is described.

Kruger, R.P.; Morris, R.A.; Wecksung, G.W.

1980-01-01

323

Los Alamos safeguards program overview and NDA in safeguards  

SciTech Connect

Over the years the Los Alamos safeguards program has developed, tested, and implemented a broad range of passive and active nondestructive analysis (NDA) instruments (based on gamma and x-ray detection and neutron counting) that are now widely employed in safeguarding nuclear materials of all forms. Here very briefly, the major categories of gamma ray and neutron based NDA techniques, give some representative examples of NDA instruments currently in use, and cite a few notable instances of state-of-the-art NDA technique development. Historical aspects and a broad overview of the safeguards program are also presented.

Keepin, G.R.

1988-01-01

324

Teoría teatral y teatro puertorriqueño de los 80  

E-print Network

SPRING 1992 151 Teoría teatral y teatro puertorriqueño de los 80* Priscilla Meléndez A Luis Rafael Sánchez A Rosa Luisa Márquez [E]l teatro tiene su propio sentido-no es un "medio de difusión" ni una "industria" ni una parte de la farándula ni... fuera de las restricciones impuestas por la sociedad en que se expresa. Lowell Fiet. "Más allá de la fugitiva peseta y la Kultura: Teorías del teatro contemporáneo." La tendencia más común de la crítica extranjera al hablar sobre el teatro...

Melé ndez, Priscilla

1992-04-01

325

Waste minimization in the Los Alamos Medical Radioisotope Program  

SciTech Connect

Since the mid-1970s the Los Alamos Medical Radioisotope Program has been irradiating target materials to produce and recover radioisotopes for applications in medicine, environmental science, biology, physics, materials research, and other disciplines where radiotracers find utility. By necessity, the chemical processing of targets and the isolation of radioisotopes generates radioactive waste materials. Recent years have brought pressure to discontinue the use of hazardous materials and to minimize radioactive waste volumes. Substantial waste reduction measures have been introduced at the irradiation facility, in processing approaches, and even in the ways the product isotopes are supplied to users.

Taylor, W.A.; Jamriska, D.J.; Hamilton, V.T.; Heaton, R.C.; Phillips, D.R.; Staroski, R.C.; Garcia, J.B.; Garcia, J.G.; Ott, M.A.

1994-04-01

326

Los hijos del terremoto: Imágenes de un recuerdo  

E-print Network

. Nació de la situación argentina reciente, como aclara el autor en sus palabras sobre el génesis de la obra. Se refiere a su propia condición de haber pasado varios años lejos de su país y su regreso "buscando mi cable a tierra. Mi sonido." El que... creyó comprender la imposibilidad de lograr algo a favor de los oprimidos de la tierra. Está toda la gama de una socie dad terrorizada y últimamente autovendida. Pero si ésta es la interpretación completa y única que le demos a la obra, la estamos...

Dauster, Frank

1988-10-01

327

Text and graphics at Los Alamos: a system viewpoint  

SciTech Connect

At Los Alamos National Laboratory, a computerized document preparation system is being developed to produce publication-quality documents integrating text and graphics. Mixing text and graphics involves a combination of two different technologies; thus the project has presented numerous and interesting challenges. The requirements, issues, solutions, and continuing concerns of the system development are described. The particular challenges encountered in fitting the document system into the Laboratory's diverse computing network are explained. The paper itself is an example of the type of document the system can produce. 3 figs.

Vigil, M.; Bouchier, S.C.

1986-01-01

328

Groundwater Level Status Report for 2005 Los Alamos National Laboratory  

SciTech Connect

The status of groundwater level monitoring at Los Alamos National Laboratory (LANL) in 2005 is provided in this report. The Groundwater Level Monitoring Project was instituted in 2005 to provide a framework for the collection and processing of quality controlled groundwater level data. This report summarizes groundwater level data for 137 monitoring wells, including 41 regional aquifer wells, 22 intermediate wells, and 74 alluvial wells. Pressure transducers were installed in 118 monitoring wells for continuous monitoring of groundwater levels. Time-series hydrographs of groundwater level data are presented along with pertinent construction and location information for each well.

S.P. Allen; R.J. Koch

2006-05-15

329

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

SciTech Connect

Appendices are presented from a study performed on a concept model system for the commercialization of Los Alamos National Laboratory technologies via small businesses. Topics include a summary of information from the joint MCC/Los Alamos technology conference; a comparison of New Mexico infrastructure to other areas; a typical licensing agreement; technology screening guides; summaries of specific DOE/UC/Los Alamos documents; a bibliography; the Oak Ridge National Laboratory TCRD; The Ames Center for Advanced Technology Development; Los Alamos licensing procedures; presentation of slides from monthly MCC/Los Alamos review meetings; generalized entrepreneurship model; and a discussion on receiving equity for technology.

Brice, R.; Carton, D.; Rhyne, T. [and others] [and others

1997-06-01

330

Mecanismos de Acción de las Auxinas y los Herbicidas Auxínicos  

NSDL National Science Digital Library

Se muestra como las auxinas y los herbicidas auxínicos pueden inducir respuestas celulares y se describe el transporte basípeto de las auxinas. También se muestra como los receptores de auxinas reconocen las auxinas y los herbicidas auxínicos, los cuales inducen entonces la transmisión y traducción de señales para activar varios genes; el papel de los productos de esos genes en las respuestas de las plantas es también mostrado.

331

Review of epidemiologic studies at Los Alamos National Laboratory  

SciTech Connect

Epidemiologic studies at Los Alamos are directed toward understanding potential health risks associated with activities pertaining to national energy and defense needs. Currently this research focuses on evaluating the effects of plutonium exposure in man. The major programs consist of (1) epidemiologic studies of the incidence of disease and mortality among plutonium and other workers at six Department of Energy (DOE) contractor facilities (Los Alamos, Rocky Flats, Mound, Savannah River, Hanford, and Oak Ridge), and (2) measurement of plutonium and other radionuclides in human tissues. Currently, investigations of mortality for Pantex workers and the surrounding general population are also being conducted for DOE in support of an Environment Impact Statement. This paper places emphasis on the activities of the national epidemiologic study of plutonium workers. The purpose of the plutonium workers study is to: (1) investigate whether adverse health effects are associated with exposures to plutonium, (2) explore whether adverse health effects are associated with exposure to transuranic elements, other radioisotopes, and hazardous substances that are found in nuclear facilities making routine use of plutonium, and (3) to describe in detail the nature of such health effects should they be discovered.

Voelz, G.L.; Wilkinson, G.S.; Acquavella, J.F.; Reyes, M.; McInroy, J.F.

1982-01-01

332

Electronic full-image reports at Los Alamos National Laboratory  

SciTech Connect

Los Alamos National Laboratory is a Department of Energy laboratory operated by the University of California. There are over 10,000 laboratory employees and contractors, many engaged in a variety of scientific and technical research. The laboratory covers forty-three square miles in northern New Mexico, one hundred miles from the nearest city which might reasonably be expected to meet the needs of the researchers. Because of the remoteness of the institution, the Research Library is a vital source for scientific and technical information. Due to the size of the institution, access to the physical library is difficult. These barriers, along with advances in technology, have led the Research Library to provide desktop access to all formal, unlimited Los Alamos reports. Older reports have been scanned and newer ones are received in electronic format. Currently over 10,000 reports are available in portable document format (PDF) via the World Wide Web (http://lib-www.lanl.gov). Researchers can search the library Web catalog (on a Z39.50 server), find a report, and click on a link to automatically bring up the report. This has been an extremely successful project as shown by the high usage, over 3,000 files retrieved per month in 1997 compared with around 100 for the hardcopy. This paper will discuss the reasons for, and the mechanics of, digitizing the reports, the results that have been observed, and plans for the future.

Mosier, M.L.

1998-03-02

333

Plutonium scrap processing at the Los Alamos Scientific Laboratory  

SciTech Connect

The Los Alamos Scientific Laboratory currently has the newest plutonium handling facility in the nation. Los Alamos has been active in the processing of plutonium almost since the discovery of this man-made element in 1941. One of the functions of the new facility is the processing of plutonium scrap generated at LASL and other sites. The feed for the scrap processing program is extremely varied, and a wide variety of contaminants are often encountered. Depending upon the scrap matrix and contaminants present, the majority of material receives a nitric acid/hydrofluoric acid or nitric acid/calcium fluoride leach. The plutonium nitrate solutions are then loaded onto an anion exchange column charged with DOWEX 1 x 4, 50 to 100 mesh, nitrate form resin. The column is eluted with 0.48 M hydroxyl amine nitrate. The Pu(NO/sub 3/)/sub 3/ is then precipitated as plutonium III oxalate which is calcined at 450 to 500/sup 0/C to yield a purified PuO/sub 2/ product.

Nixon, A.E.; McKerley, B.J.; Christensen, E.L.

1980-01-01

334

Investigation of excess thyroid cancer incidence in Los Alamos County  

SciTech Connect

Los Alamos County (LAC) is home to the Los Alamos National Laboratory, a U.S. Department of Energy (DOE) nuclear research and design facility. In 1991, the DOE funded the New Mexico Department of Health to conduct a review of cancer incidence rates in LAC in response to citizen concerns over what was perceived as a large excess of brain tumors and a possible relationship to radiological contaminants from the Laboratory. The study found no unusual or alarming pattern in the incidence of brain cancer, however, a fourfold excess of thyroid cancer was observed during the late-1980`s. A rapid review of the medical records for cases diagnosed between 1986 and 1990 failed to demonstrate that the thyroid cancer excess had resulted from enhanced detection. Surveillance activities subsequently undertaken to monitor the trend revealed that the excess persisted into 1993. A feasibility assessment of further studies was made, and ultimately, an investigation was conducted to document the epidemiologic characteristics of the excess in detail and to explore possible causes through a case-series records review. Findings from the investigation are the subject of this report.

Athas, W.F.

1996-04-01

335

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

336

System requirements for the Los Alamos foil-implosion project  

SciTech Connect

The goal of the Los Alamos imploding foil project is the development of an intense source of soft x rays and hot plasma produced from the thermalization of 1 to 10 MJ of plasma kinetic energy. The source will be used for material studies and fusion experiments. Specifically, thin, current-carrying cylindrical metallic plasmas are imploded via their self-magnetic forces. Features of this project are the use of high-explosive-driven flux-compression generators as the prime power source to achieve very high energies and fast opening switches to shorten the electrical pulses. To reach a load kinetic energy of 10 MJ, it is expected that the foil-plasma must carry about 50 MA of current and must implode in less than 1/2 ..mu..sec. This imposes the requirements that switch opening times must be less than 1/2 ..mu..sec and the transmission line must withstand voltages of about 1 MV. The system being pursued at Los Alamos is described, and model calculations are presented.

Brownell, J.; Bowers, R.; Greene, A.; Lindemuth, I.; Nickel, G.; Oliphant, T.; Weiss, D.

1983-01-01

337

New directions in physics. The Los Alamos 40th anniversary  

SciTech Connect

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 include: Los Alamos in the 1980s; tiny computers obeying quantum mechanical laws; present, and future of nuclear magnetic resonance; experimental evidence that an asteroid impact led to the extinction of many species 65 million years ago; the lunar laboratory; the future of particle accelerators: Post WWII and now; models, hypotheses and approximations; comments on three thermonuclear paths for the synthesis of helium; and the sad augurs mock their own passage; experiments on time reversal symmetry and parity; on the course of our magnetic fusion energy enterprise; early days in the Lawrence Laboratory; nuclear charge distribution in fission; developing larger software systems; reflections on style in physics; tuning up the TPC; remarks on the future of particle physics; supernova theory; how well we meant; history and the hierarchy of structure.

Metropolis, N.; Kerr, D.M.; Rota, G.C.

1987-01-01

338

Solar pond research at the Los Alamos National Laboratory  

SciTech Connect

A description of solar pond research at Los Alamos National Laboratory is presented. The main issues in the theory of solar ponds are discussed. Among these are the interfacial-boundary-layer model, models for interface motion and pond performance, heat extraction, and ground heat loss. The core of the research effort at Los Alamos was the development of a one-dimensional computer program to accurately predict dynamic performance of a solar pond. The computer model and the experiments that were designed and performed to validate it are described. The experiments include two laboratory tanks wherein temperature, salinity, and flow visualization data were obtained and a 232 m/sup 2/ outdoor solar pond. Results from preliminary validation show good agreement between the pond's predicted dynamic behavior and that which actually occurred in the experiments. More validation using data from full-sized solar ponds is needed. A new correlation for the ratio of interfacial salt-flux to heat-flux is proposed which agrees well with our data. Recommendations for future research are given.

Jones, G.F.; Meyer, K.A.; Hedstrom, J.C.; Grimmer, D.P.

1984-01-01

339

Improving disease reporting in Los Angeles County: trial and results.  

PubMed Central

A telephone survey of physicians in Los Angeles County revealed that 50 percent of 405 contacted were unaware of the legal mechanism for reporting communicable diseases--the Confidential Morbidity Report (CMR) card. After that survey, three measures were taken in an effort to improve reporting and surveillance: (a) use of a stamped self-addressed CMR postcard, (b) publication of the monthly newsletter "Public Health Letter," which was distributed to 23,000 health professionals in Los Angeles County free of charge, and (c) initiation of an active disease surveillance system that included 171 reporting sites contacted weekly (76 physicians, 36 schools, 33 preschools, 22 hospitals, and 4 university student health centers). No increase in the levels of disease reporting was observed, based on 4 years' experience with the revised CMR card and the Public Health Letter. The active disease surveillance system, however, has provided anecdotal reports of disease occurrence and notification of outbreaks of both reportable and nonreportable diseases. Moreover, the authors believe it has improved rapport between the county health department and the medical community. PMID:3136501

Weiss, B P; Strassburg, M A; Fannin, S L

1988-01-01

340

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

341

Fuels Inventories in the Los Alamos National Laboratory Region: 1997  

SciTech Connect

Fifty-four sites were surveyed for fuel levels, vegetational structures, and topographic characteristics. Most of the surveyed sites were on Los Alamos National Laboratory property, however, some surveys were also conducted on U.S. Forest Service property. The overall vegetation of these sites ranged from pinon-juniper woodlands to ponderosa pine forests to mixed conifer forests, and the topographic positions included canyons, mesas, and mountains. The results of these surveys indicate that the understory fuels are the greatest in mixed conifer forests and that overstory fuels are greatest in both mixed conifer forests and ponderosa pine forests on mesas. The geographic distribution of these fuels would suggest a most credible wildfire scenario for the Los Alamos region. Three major fires have occurred since 1954 and these fires behaved in a manner that is consistent with this scenario. The most credible wildfire scenario was also supported by the results of BEHAVE modeling that used the fuels inventory data as inputs. Output from the BEHAVE model suggested that catastrophic wildfires would continue to occur during any season with sufficiently dry, windy weather.

Balice, R.G.; Oswald, B.P.; Martin, C.

1999-03-01

342

An organizational survey of the Los Alamos Site  

SciTech Connect

An Organizational Survey (OS) was administered at the Los Alamos Site that queried employees on the subjects of organizational culture, various aspects of communications, employee commitment, work group cohesion, coordination of work, environmental, safety, and health concern, hazardous nature of work, safety and overall job satisfaction. The purpose of the OS is to measure in a quantitative and objective way the notion of ``culture;`` that is, the values, attitudes, and beliefs of the individuals working within the organization. In addition, through the OS, a broad sample of individuals can be reached that would probably not be interviewed or observed during the course of a typical assessment. The OS also provides a descriptive profile of the organization at one point in time that can then be compared to a profile taken at a different point in time to assess changes in the culture of the organization. While comparisons among groups are made, it is not the purpose of this report to make evaluative statements of which profile may be positive or negative. However, using the data presented in this report in conjunction with other evaluative activities, may provide useful insight into the organization. The OS administration at the Los Alamos Site was the ninth to occur at a Department of Energy (DOE) facility. All data from the OS is presented in group summaries, by organization, department or directorate within organization, supervisory level both overall and within organization, and staff classification within organization. Statistically significant differences between groups are identified and discussed. 9 refs., 94 figs., 11 tabs.

Shurberg, D.A.; Haber, S.B.

1991-11-01

343

Aumentan un 100% los estudiantes de Movilidad No Europea de la UA, los nuevos convenios y el presupuesto destinado a este programa  

E-print Network

Aumentan un 100% los estudiantes de Movilidad No Europea de la UA, los nuevos convenios y el estudiantes que participarán del programa de Movilidad No Europea este año Alicante, 14 de febrero de 2014 El vicerrector de Relaciones Internacionales de la UA, Juan Llopis, el director del Secretariado de Movilidad

Escolano, Francisco

344

Using the Internet in Middle Schools: A Model for Success. A Collaborative Effort between Los Alamos National Laboratory (LANL) and Los Alamos Middle School (LAMS).  

ERIC Educational Resources Information Center

Los Alamos National Laboratory (LANL) developed a model for school networking using Los Alamos Middle School as a testbed. The project was a collaborative effort between the school and the laboratory. The school secured administrative funding for hardware and software; and LANL provided the network architecture, installation, consulting, and…

Addessio, Barbara K.; And Others

345

MEDIDAS ACORDADAS POR LA DEFENSORIA DE LOS DERECHOS UNIVERSITARIOS DE LA UNAM RELATIVAS A LA SUSPENSION DE LOS PROCEDIMIENTOS ACADEMICOS Y  

E-print Network

MEDIDAS ACORDADAS POR LA DEFENSORIA DE LOS DERECHOS UNIVERSITARIOS DE LA UNAM RELATIVAS A LA Derechos Universitarios Dr. Leoncio Lara Sáenz con fundamento en las disposiciones contenidas tanto en el derechos y obligaciones de los estudiantes y miembros del personal académico en lo relativo a dichos

Arroyo Rodríguez, Víctor

346

The meaning of nervios: A sociocultural analysis of symptom presentation in San Jose, Costa Rica  

Microsoft Academic Search

The foundation of the symbolic tradition in medical anthropology is the examination of a patient's experience of a category of illness. The interpretation of folk explanations of etiology and nosology provides insight into the cultural definition of what constitutes an illness, how and why an illness is labeled, and how the afflicted individual should be treated. Further, the analysis of

Setha M. Low

1981-01-01

347

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.

348

The LANSCE (Los Alamos Neutron Scattering Center) software management environment  

SciTech Connect

We present the details of an innovative software management environment implemented to address life cycle support requirements at the Los Alamos Neutron Scattering Center (LANSCE). The system provides an automated configuration management framework within which all software development and maintenance activities are performed. The LANSCE environment provides a comprehensive configuration management (CM) system based upon a commercially available CM tool. The CM component ensures the integrity of all LANSCE application software, automatically performs status accounting operations, and provides a flexible automated facility for rebuilding resident software components and restoring them to the baseline. It employs high-level data structures both to enhance significantly the level of automation that can be achieved and to provide extensive, integrated support to the software development community. We discuss the software management philosophy that led to the development of the LANSCE environment on programmer productivity, system integration and software management effectiveness. 8 refs., 4 figs.

Donahue, S.; Cort, G.

1988-01-01

349

Los Alamos Guns Take Aim at Material's Mysteries  

ScienceCinema

Los Alamos National Laboratory scientists and technicians conduct thousands of experiments a year, delving into the fundamental nature of everything from supernovas to subatomic particles. One set of instruments used to better understand the fundamental nature of various materials are 10 scientific gun systems that fire various projectiles at high-tech targets to create enormous velocities, pressures, and temperatures - and using laser, x-ray, and other diagnostics - explore the very nature of metals and other materials. The hundreds of gun-based experiments conducted every year at the Laboratory require a highly-skilled staff of scientists and technicians, and has given rise to a special organization called the "gun working group" to foster open communications, cooperation, problem-solving, and a healthy safety culture.

Byers, Mark; Moore, David; Dimarino, Steve

2014-05-30

350

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

351

Recent progress of the Los Alamos advanced free electron laser  

SciTech Connect

Many industrial and research applications can benefit from the availability of a compact, user-friendly, broadly tunable and high average power free electron laser (FEL). Over the past four years, the Los Alamos Advanced FEL has been built with these design goals. The key to a compact FEL is the integration of advanced beam technologies such as a high-brightness photoinjector, a high-gradient compact linac, and permanent magnet beamline components. These technologies enable the authors to shrink the FEL size yet maintain its high average power capability. The Advanced FEL has been in operation in the near ir (4-6 {mu}m) since early 1993. Recent results of the Advanced FEL lasing at saturation and upgrades to improve its average power are presented.

Nguyen, D.C.; Austin, R.H.; Chan, K.C.D.; Feldman, D.W.; Goldstein, J.C.; Gierman, S.M.; Kinross-Wright, J.M.; Kong, S.H.; Plato, J.G.; Russell, S.J. [and others

1994-05-01

352

Initial performance of Los Alamos Advanced Free Electron Laser  

SciTech Connect

The Los Alamos compact Advanced FEL has lased at 4.7 and 5.2 {mu}m with a 1-cm period wiggler and a high-brightness electron beam at 16.8 and 15.8 MeV, respectively. The measured electron beam normalized emittance is 1.7 {pi}{center_dot}mm{center_dot}mrad at a peak current of 100 A, corresponding to a beam brightness greater than 2 {times} 10{sup 12} A/m{sup 2}rad{sup 2}. Initial results indicate that the AFEL small signal gain is {approximately}8% at 0.3 nC (30 A peak). The maximum output energy is 7 mJ over a 2-{mu}s macropulse. The AFEL performance can be significantly enhanced by improvements in the rf and drive laser stability.

Nguyen, D.C.; Austin, R.H.; Chan, K.C.D. [and others

1993-09-01

353

Los Alamos radiation transport code system on desktop computing platforms  

SciTech Connect

The Los Alamos Radiation Transport Code System (LARTCS) consists of state-of-the-art Monte Carlo and discrete ordinates transport codes and data libraries. These codes were originally developed many years ago and have undergone continual improvement. With a large initial effort and continued vigilance, the codes are easily portable from one type of hardware to another. The performance of scientific work-stations (SWS) has evolved to the point that such platforms can be used routinely to perform sophisticated radiation transport calculations. As the personal computer (PC) performance approaches that of the SWS, the hardware options for desk-top radiation transport calculations expands considerably. The current status of the radiation transport codes within the LARTCS is described: MCNP, SABRINA, LAHET, ONEDANT, TWODANT, TWOHEX, and ONELD. Specifically, the authors discuss hardware systems on which the codes run and present code performance comparisons for various machines.

Briesmeister, J.F.; Brinkley, F.W.; Clark, B.A.; West, J.T. (Los Alamos National Lab., NM (United States))

1990-01-01

354

Los Alamos National Laboratory support to IAEA environmental safeguards  

SciTech Connect

The nuclear and radiochemistry group provides sample preparation and analysis support to the International Atomic Energy Agency (IAEA) Network of Analytical Laboratories (NWAL). These analyses include both non-destructive (alpha and gamma-ray spectrometry) and destructive (thermal ionization mass spectrometry and inductively coupled plasma mass spectrometry) methods. On a bi-annual basis the NWAL laboratories are invited to meet to discuss program evolution and issues. During this meeting each participating laboratory summarizes their efforts over the previous two years. This presentation will present Los Alamos National Laboratories efforts in support of this program. Data showing results from sample and blank analysis will be presented along with capability enhancement and issues that arose over the previous two years.

Steiner, Robert E [Los Alamos National Laboratory; Dry, Don E [Los Alamos National Laboratory; Roensch, Fred R [Los Alamos National Laboratory; Kinman, Will S [Los Alamos National Laboratory; Roach, Jeff L [Los Alamos National Laboratory; La Mont, Stephen P [Los Alamos National Laboratory

2010-12-01

355

Los Alamos National Laboratory Develops ''Quick to WIPP'' Strategy  

SciTech Connect

The Cerro Grande forest fire in May of 2000 and the terrorist events of September 11, 2001 precipitated concerns of the vulnerability of legacy contact-handled (CH), high-wattage transuranic (TRU) waste stored at Los Alamos National Laboratory (LANL). An analysis of the 9,100 cubic meters of stored CH-TRU waste revealed that 400 cubic meters or 4.5% of the inventory represented 61% of the risk. The analysis further showed that this 400 cubic meters was contained in only 2,000 drums. These facts and the question ''How can the disposition of this waste to the Waste Isolation Pilot Plant (WIPP) be accelerated?'' formed the genesis of LANL's Quick to WIPP initiative.

Jones, R.; Allen, G.; Kosiewicz, S.; Martin, B,; LANL; Nunz, J.; Biedscheid, J.; Sellmer, T.; Willis, J.; Orban, J.; Liekhus, K.; Djordjevic, S.

2003-02-25

356

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

357

Los Angeles County Museum of Art Collections Online  

NSDL National Science Digital Library

LACMA, Los Angeles County Museum of Art, recently made available over 25,000 records accompanied by over 10,000 images representing items from its South and Southeast Asian, Japanese, Islamic, Photography, and Costume and Textiles collections. Another 20,000 records will be added in 2002. Keyword searches can be performed by entering text or by selecting from a drop-down menu of about 45 general terms, such as archaeological artifacts, arms & armor, furniture, glass, jewelry, prints, terracotta, or utilitarian objects. Searches can be limited to include only records with images, so that a search on shoes retrieved 45 illustrated examples of women's and children's shoes dating from the 18th to 20th centuries. Users can also browse categories such as Storeroom Treasures, Costume & Textiles, Islamic Art, Japanese Art, Photography, and South and Southeast Asian Art.

1997-01-01

358

HELIOS: applications at the Los Alamos National Laboratory  

SciTech Connect

The Los Alamos National Laboratory (LANL) is involved in the analysis of many different types of nuclear systems. The nuclear systems that we have analyzed have included subcritical accelerator driven systems for the transmutation of waste, fusion systems, critical experiment systems, and space propulsion and power systems. We have also analyzed special purpose reactors such as the LANL Omega West reactor, production reactors, and conventional commercial light- and heavy-water reactors. Thus the systems that we analyze and the type of results desired, often vary considerably from those of a power company normally analyzing their PWR or BWR for fissile fuel burnup and production. The reactor geometries that we model are often quite complicated such as those of an RBMK or Savannah River Production Reactor. Rather than fissile fuel production and burnup, the goal of a calculation could be the production rate of some obscure isotope which has medical applications.

Perry, R.T.; Mosteller, R.D.; Chodak, Paul III [Los Alamos National Lab., NM (United States); Charlton, W. [Texas A and M University, College Station, TX (United States); Adams, B.T. [Delft University of Technology, Delft (Netherlands)

1997-10-01

359

Los Angeles air pollution and asthma in children  

SciTech Connect

Indices of air pollution, meteorological conditions and airborne allergens were correlated with emergency room census and hospitalizations for asthma at the Childrens Hospital of Los Angeles (CHLA) during a six-month period encompassing high and low periods of air pollution. In addition, patients in residence at the Sunair Home for Asthmatic Children (SHAC) were studied during a 10-day peak air pollution period. Increases in asthma emergency room visits and hospitalizations correlated significantly with increases in nitric oxide, coefficient of haze, hydrocarbons, Santa Ana wind conditions and total airborne allergen counts. Significant correlations were also found with decreases in ambient levels of O3, SO2, temperature and relative humidity. Among SHAC patients morning peak flow levels were significantly lower during the 10-day peak pollution period than during two control periods of low pollution. However, neither differences in clinical symptoms experienced by these patients nor their need for additional medication were observed.

Richards, W.; Azen, S.P.; Weiss, J.; Stocking, S.; Church, J.

1981-11-01

360

Los Alamos Guns Take Aim at Material's Mysteries  

SciTech Connect

Los Alamos National Laboratory scientists and technicians conduct thousands of experiments a year, delving into the fundamental nature of everything from supernovas to subatomic particles. One set of instruments used to better understand the fundamental nature of various materials are 10 scientific gun systems that fire various projectiles at high-tech targets to create enormous velocities, pressures, and temperatures - and using laser, x-ray, and other diagnostics - explore the very nature of metals and other materials. The hundreds of gun-based experiments conducted every year at the Laboratory require a highly-skilled staff of scientists and technicians, and has given rise to a special organization called the "gun working group" to foster open communications, cooperation, problem-solving, and a healthy safety culture.

Byers, Mark; Moore, David; Dimarino, Steve

2014-04-14

361

SurveyLA: Los Angeles Historic Resources Survey  

NSDL National Science Digital Library

If you mention "historic preservation" and "Los Angeles" in the same sentence, some people might raise their eyebrows. The City of Angeles has constantly reinvented itself during its relatively brief existence, and much of the city's urban fabric has been chewed up by bulldozers and ambitious developers over the past several decades. However, the J. Paul Getty Trust is providing financial backing for the very exciting and ambitious project known as "SurveyLA". The intent of SurveyLa is to complete a citywide survey that will identify and document historic resources representing significant themes in the city's history. Visitors to the site can learn about the survey's methods, read a FAQ section, and also locate historic properties. It's a very well-done website, and it's one that other historic preservation officials and persons with an interest in such matters may want to consult as they think about their own efforts in this area.

2008-01-01

362

Recent LAMPF (Los Alamos Meson Physics Facility) research using muons  

SciTech Connect

In addition to the core programs in nuclear and particle physics, diverse experiments have been carried out that address interdisciplinary and applied topics at the Los Alamos Meson Physics Facility (LAMPF). These include muon-spin-relaxation experiments to study magnetic dynamics in spin glasses and electronic structure in heavy-fermion superconductors; muon channeling experiments to provide information on pion stopping sites in crystals; tomographic density reconstruction studies using proton energy loss; and radiation-effects experiments to explore microstructure evolution and to characterize materials for fusion devices and high-intensity accelerators. Finally, the catalysis of the d-t fusion reaction using negative muons has been extensively investigated with some surprising results including a stronger than linear dependence of the mesomolecular formation rate on target density and the observation of 150 fusions per muon under certain conditions. Recent results in those programs involving pions and muons interacting with matter are discussed.

Bradbury, J.N.

1987-01-01

363

Defense programs industrial partnerships at Los Alamos National Laboratory  

SciTech Connect

The US Department of Energy`s Defense Programs face unprecedented challenges of stewardship for an aging nuclear stockpile, cessation of nuclear testing, reduced federal budgets, and a smaller manufacturing complex. Partnerships with industry are essential in developing technology, modernizing the manufacturing complex, and maintaining the safety and reliability of the nation`s nuclear capability. The past decade of federal support for industrial partnerships has promoted benefits to US industrial competitiveness. Recent shifts in government policy have re-emphasized the importance of industrial partnerships in accomplishing agency missions. Nevertheless, abundant opportunities exist for dual-benefit, mission-driven partnerships between the national laboratories and industry. Experience at Los Alamos National Laboratory with this transition is presented.

Freese, K.B. [Los Alamos National Lab., NM (United States). Industrial Partnership Office

1996-10-01

364

Los Alamos National Laboratory capability reviews - FY 2011 status  

SciTech Connect

Capability reviews are the Los Alamos National Laboratory approach to assess the quality of its science, technology, and engineering (STE), and its integration across the Laboratory. There are seven capability reviews in FY 2011 reviews. The Weapons Science and Engineering review will be replaced by the National Nuclear Security Administration's Predictive Science Panel for 2011 . Beginning in 2011, third-year LORD projects will be reviewed by capability review committees rather than the first-year LORD projects that have been performed for the last three years. This change addresses concerns from committees about reviewing a project before it had made any substantive progress. The current schedule, and chairs for the 2011 capability reviews is presented. The three-year cycle (2011-2013) for capability reviews are presented for planning purposes.

Springer, Everett P [Los Alamos National Laboratory

2011-01-12

365

Online microfilm recorders at Los Alamos National Laboratory  

SciTech Connect

The Los Alamos Computing Division has developed a satellite graphics output station (PAGES). This station accepts user requests for output through a large computer network (the ICN). The system orders these requests and schedules output on one of several devices consistent with the user's request and the overall job turnaround requirements of the Laboratory. The system translates a standard Metafile into a device-specific format and efficiently generates the requested output. At the same time, PAGES provides some graphics processing, previously provided by the large supercomputers. The system provides current information on queues, jobs being processed, and the devices. An effective quality control program is an integral part of the system design. This system should continue to reduce user interface changes, hold down operating cost, make effective use of supercomputer time, and produce quality output. 10 figures, 1 table.

Wolf, R.

1981-01-01

366

Decommissioning the UHTREX Reactor Facility at Los Alamos, New Mexico  

SciTech Connect

The Ultra-High Temperature Reactor Experiment (UHTREX) facility was constructed in the late 1960s to advance high-temperature and gas-cooled reactor technology. The 3-MW reactor was graphite moderated and helium cooled and used 93% enriched uranium as its fuel. The reactor was run for approximately one year and was shut down in February 1970. The decommissioning of the facility involved removing the reactor and its associated components. This document details planning for the decommissioning operations which included characterizing the facility, estimating the costs of decommissioning, preparing environmental documentation, establishing a system to track costs and work progress, and preplanning to correct health and safety concerns in the facility. Work to decommission the facility began in 1988 and was completed in September 1990 at a cost of $2.9 million. The facility was released to Department of Energy for other uses in its Los Alamos program.

Salazar, M.; Elder, J.

1992-08-01

367

A data automation system at Los Alamos National Laboratory.  

SciTech Connect

Idaho National Engineering and Environmental Laboratory (INEEL) has developed an automated computer program, Data Review Expert System (DRXS), for reviewing nondestructive assay (NDA) data. DRXS significantly reduces the data review time needed to meet characterization requirements for the Waste Isolation Pilot Plant (WIPP). Los Alamos National Laboratory (LANL) is in the process of developing a computer program, Software System Logic for Intelligent Certification (SSLIC), to automate other tasks associa ted with characterization of Transuranic Waste (TRU) samples. LANL has incorporated a version of DRXS specific to LANL's isotopic data into SSLIC. This version of SSLIC was audited by the National Transuranic Program on October, 24, 2001. This paper will present the results of the audit, and discuss future plans for SSLIC including the integration on the INEELLANL developed Rule Editor.

Betts, S. E. (Stephen E.); Schneider, C. M. (Connie M.); Pickrell, M. M. (Mark Manley)

2001-01-01

368

Resolver los siguientes limites. x2 + 100x -x  

E-print Network

Examen II Resolver los siguientes l´imites. (1) lim x- x2+3x+1 16x2+x+2 Soluci´on lim x- x2+3x+1 16x2+x+2 = lim x- x2+3x+1 16x2+x+2 = lim x- x2 (1+3 x + 1 x2 ) x2 (16+1 x + 2 x2 ) = lim x- 1+3 x + 1 x2 16+1 x + 2 x2 = 1 16 = 1 4 (2) lim x x2 + 100x - x Soluci´on lim x x2 + 100x - x = lim x x2

Aíza, Ricardo Gómez

369

ACCELERATION OF LOS ALAMOS NATIONAL LABORATORY TRANSURANIC WASTE DISPOSITION  

SciTech Connect

One of Los Alamos National Laboratory's (LANL's) most significant risks is the site's inventory of transuranic waste retrievably stored above and below-ground in Technical Area (TA) 54 Area G, particularly the dispersible high-activity waste stored above-ground in deteriorating facilities. The high activity waste represents approximately 50% (by activity) of the total 292,000 PE-Ci inventory remaining to be disposed. The transuramic waste inventory includes contact-handled and remote-handled waste packaged in drums, boxes, and oversized containers which are retrievably stored both above and below-ground. Although currently managed as transuranic waste, some of the inventory is low-level waste that can be disposed onsite or at approved offsite facilities. Dispositioning the transuranic waste inventory requires retrieval of the containers from above and below-ground storage, examination and repackaging or remediation as necessary, characterization, certification and loading for shipment to the Waste Isolation Pilot Plant in Carlsbad New Mexico, all in accordance with well-defined requirements and controls. Although operations are established to process and characterize the lower-activity contact-handled transuranic waste containers, LAN L does not currently have the capability to repack high activity contact-handled transuranic waste containers (> 56 PE-Ci) or to process oversized containers with activity levels over 0.52 PE-Ci. Operational issues and compliance requirements have resulted in less than optimal processing capabilities for lower activity contact-handled transuranic waste containers, limiting preparation and reducing dependability of shipments to the Waste Isolation Pilot Plant. Since becoming the Los Alamos National Laboratory contract in June 2006, Los Alamos National Security (LANS) L.L.C. has developed a comprehensive, integrated plan to effectively and efficiently disposition the transuranic waste inventory, working in concert with the Department of Energy Los Alamos Site Office, Carlsbad Field Office and the Department of Energy Headquaeters. Rather than simply processing containers as retrieved, the plan places priority on efficient curie disposition, a direct correlation to reducing risk. Key elements of the approch include balancing inventory and operational risks, tailoring methods to meet requirements, optimizing existing facilities, equipment and staff, and incorporating best practices from other Department of Energy sites. With sufficient funding this will enable LANL to ship the above-ground high activity contact-handled transuranic waste offsite by the end of Fiscal Year (FY) 2007 and to disposition the remaining above- and below-ground contact-handled and remote-handled transuranic waste inventory by December 2010. Nearly 70% of the contact-handled transuranic waste containers, including the high activity waste, require processing and repackaging before characterization and certification for shipment to the Waste Isolation Pilot Plant. LANL is employing a balanced risk approach that accomplishes significant long-term risk reduction by accepting short-term increased facility operations risk under well-developed and justified interim controls. Reviews of facility conditions and additional analyses show that the Waste Characterization, Reduction and Repackaging Facility and the Radioassay and Nondestructive Testing Facility are the most appropriate facilities to safetly remediate, repackage, and ship lower activity and the remaining high activity drums. Updated safety documentation supporting limited Hazard Category 2 operations in these facilities has been developed. Once approved, limited-term operations to process the high activity drums can begin in early 2007, building upon the experience base established performing Hazard Category 3 operations processing lower activity waste in these facilities. LANL is also implementing a series of actions to improve and sustain operations for processing contact-handled transuranic waste inventory. Building 412 Decontamination and Volume Facility and Dom

O'LEARY, GERALD A. [Los Alamos National Laboratory

2007-01-04

370

Environmental surveillance at Los Alamos during 1991. Environmental protection group  

SciTech Connect

This report describes the environmental surveillance program conducted by Los Alamos National Laboratory during 1991. Routine monitoring for radiation and for radioactive and chemical materials is conducted on the Laboratory site as well as in the surrounding region. Monitoring results are used to determine compliance with appropriate standards and to permit early identification of potentially undesirable trends. Results and interpretation of data for 1991 cover external penetrating radiation; quantities of airborne emissions and effluents; concentrations of chemicals and radionuclides in ambient air, surface waters and groundwaters, municipal water supply, soils and sediments, and foodstuffs; and environmental compliance. Comparisons with appropriate standards, regulations, and background levels provide the basis for concluding that environmental effects from Laboratory operations are small and do not pose a threat to the public, Laboratory employees, or the environment.

Dewart, J.; Kohen, K.L. [comps.

1993-08-01

371

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

NASA Astrophysics Data System (ADS)

The intrusion of the Lower Permian Los Santos-Valdelacasa granitoids in the Los Santos area caused contact metamorphism of Later Vendian-Lower Cambrian metasediments. High grade mineral assemblages are confined to a 7 km wide contact aureole. Contact metamorphism was accompanied by intense metasomatism and development of skarns, and it generated the following mineral assemblages: diopside, forsterite, phlogopite (±clintonite) and humites and spinel-bearing assemblages or diopside, grossular, vesuvianite ± wollastonite in the marbles, depending on the bulk rock composition. Cordierite, K-feldspar, andalusite and, locally, sillimanite appear in the metapelitic rocks. Mineral assemblages of marbles and hornfelses indicate pressure conditions ranging from 0.2 to 0.25 GPa and maximum temperatures between 630 and 640 °C. 13C and 18O depletions in calcite marbles are consistent with hydrothermal fluid-rock interaction during metamorphism. Calcites are depleted in both 18O (?18O = 12.74‰) and 13C (?13C = -5.47‰) relative to dolomite of unmetamorphosed dolostone (?18O = 20.79‰ and ?13C = -1.52‰). The ?13C variation can be interpreted in terms of Rayleigh distillation during continuous CO2 fluid removal from the carbonates. The ?18O values reflect hydrothermal exchange with an externally derived fluid. Microthermometric analyses of fluid inclusions from vesuvianite indicate that the fluid was water dominated with minor contents of CO2 (±CH4 ± N2) suggesting a metamorphic origin. Fluorine-bearing minerals such as chondrodite, norbergite and F-rich phlogopite indicate that contact metamorphism was accompanied by fluorine metasomatism. Metasomatism was more intense in the inner-central portion of the contact aureole, where access to fluids was extensive. The irregular geometry of the contact with small aplitic intrusives between the metasediments and the Variscan granitoids probably served as pathways for fluid circulation.

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

2007-05-01

372

Earthquakes, faulting, and stress in the Los Angeles basin  

SciTech Connect

Since 1920 fourteen moderate-sized (M{sub L} = 4.9-6.4) earthquakes have been reported in the Los Angeles basin. To determine the style of faulting and state of stress in the basin, single-event focal mechanisms for 244 earthquakes of M {ge} 2.5 that have occurred during 1977-1989 have been calculated. Fifty-nine percent of the events are strike-slip and are mostly located near two of the major, northwest striking right-lateral strike-slip faults in the basin, the Newport-Inglewood fault and the Palos Verdes fault. The 1988 Pasadena and the 1988 Upland earthquakes showed left-lateral strike-slip on northeast striking faults. Numerous small earthquakes in the eastern part of the basin show left-lateral strike-slip faulting and form a northeast trend near Yorba Linda. Thirty-two percent of the events have reverse mechanisms and are distributed along two broad zones. The first, the Elysian Park fold and thrust belt, coincides with anticlines along the eastern and northern flank of the Los Angeles basin extending into Santa Monica Bay. The second, the Torrance-Wilmington fold and thrust belt, coincides with anticlines mapped on the southwest flank of the basin and extends from offshore Newport Beach to the northwest into Santa Monica Bay. The trend of the maximum horizontal stress varies from N1{degree}W to N31{degree}E across the basin and consistently forms high angles with the fold axes. The stress field that exists along the flanks of the basin has a vertical minimum stress axis. This stress field and ongoing folding and thrusting suggest that tectonic deformation is concentrated along the flanks of the deep central basin. Today the deformation of the basin consists of uplift and crustal thickening and lateral block movement to accommodate the north-south compression across the basin.

Hauksson, E. (Univ. of Southern California, Los Angeles (USA))

1990-09-10

373

On the Sources of Methane to the Los Angeles Atmosphere  

NASA Technical Reports Server (NTRS)

We use historical and new atmospheric trace gas observations to refine the estimated source of methane (CH4) emitted into California's South Coast Air Basin (the larger Los Angeles metropolitan region). Referenced to the California Air Resources Board (CARB) CO emissions inventory, total CH4 emissions are 0.44 +/- 0.15 Tg each year. To investigate the possible contribution of fossil fuel emissions, we use ambient air observations of methane (CH4), ethane (C2H6), and carbon monoxide (CO), together with measured C2H6 to CH4 enhancement ratios in the Los Angeles natural gas supply. The observed atmospheric C2H6 to CH4 ratio during the ARCTAS (2008) and CalNex (2010) aircraft campaigns is similar to the ratio of these gases in the natural gas supplied to the basin during both these campaigns. Thus, at the upper limit (assuming that the only major source of atmospheric C2H6 is fugitive emissions from the natural gas infrastructure) these data are consistent with the attribution of most (0.39 +/- 0.15 Tg yr-1) of the excess CH4 in the basin to uncombusted losses from the natural gas system (approximately 2.5-6% of natural gas delivered to basin customers). However, there are other sources of C2H6 in the region. In particular, emissions of C2H6 (and CH4) from natural gas seeps as well as those associated with petroleum production, both of which are poorly known, will reduce the inferred contribution of the natural gas infrastructure to the total CH4 emissions, potentially significantly. This study highlights both the value and challenges associated with the use of ethane as a tracer for fugitive emissions from the natural gas production and distribution system.

Wennberg, Paul O.; Mui, Wilton; Fischer, Marc L.; Wunch, Debra; Kort, Eric A.; Blake, Donald R.; Atlas, Elliot L.; Santoni, Gregory W.; Wofsy, Steven C.; Diskin, Glenn S.; Jeong, Seongeun

2012-01-01

374

SNM holdup assessment of Los Alamos exhaust ducts. Final report  

SciTech Connect

Fissile material holdup in glovebox and fume hood exhaust ducting has been quantified for all Los Alamos duct systems. Gamma-based, nondestructive measurements were used to quantify holdup. The measurements were performed during three measurement campaigns. The first campaign, Phase I, provided foot-by-foot, semiquantitative measurement data on all ducting. These data were used to identify ducting that required more accurate (quantitative) measurement. Of the 280 duct systems receiving Phase I measurements, 262 indicated less than 50 g of fissile holdup and 19 indicated fissile holdup of 50 or more grams. Seven duct systems were measured in a second campaign, called Series 1, Phase II. Holdup estimates on these ducts ranged from 421 g of {sup 235}U in a duct servicing a shut-down uranium-machining facility to 39 g of {sup 239}Pu in a duct servicing an active plutonium-processing facility. Measurements performed in the second campaign proved excessively laborious, so a third campaign was initiated that used more efficient instrumentation at some sacrifice in measurement quality. Holdup estimates for the 12 duct systems measured during this third campaign ranged from 70 g of {sup 235}U in a duct servicing analytical laboratories to 1 g of {sup 235}U and 1 g of {sup 239}Pu in a duct carrying exhaust air to a remote filter building. These quantitative holdup estimates support the conclusion made at the completion of the Phase I measurements that only ducts servicing shut-down uranium operations contain about 400 g of fissile holdup. No ventilation ducts at Los Alamos contain sufficient fissile material holdup to present a criticality safety concern.

Marshall, R.S.

1994-02-01

375

Post-Cold War Science and Technology at Los Alamos  

NASA Astrophysics Data System (ADS)

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, infrastructure, and health security problems. We require crosscutting fundamental and advanced science and technology research to accomplish our mission. The Stockpile Stewardship Program develops and applies, advanced experimental science, computational simulation, and technology to ensure the safety and reliability of U.S. nuclear weapons in the absence of nuclear testing. This effort in itself is a grand challenge. However, the terrorist attack of September 11, 2001, reminded us of the importance of robust and vibrant research and development capabilities to meet new and evolving threats to our national security. Today through rapid prototyping we are applying new, innovative, science and technology for homeland defense, to address the threats of nuclear, chemical, and biological weapons globally. Synergistically, with the capabilities that we require for our core mission, we contribute in many other areas of scientific endeavor. For example, our Laboratory has been part of the NASA effort on mapping water on the moon and NSF/DOE projects studying high-energy astrophysical phenomena, understanding fundamental scaling phenomena of life, exploring high-temperature superconductors, investigating quantum information systems, applying neutrons to condensed-matter and nuclear physics research, developing large-scale modeling and simulations to understand complex phenomena, and exploring nanoscience that bridges the atomic to macroscopic scales. In this presentation, I will highlight some of these post-cold war science and technology advances including our national security contributions, and discuss some of challenges for Los Alamos in the future.

Browne, John C.

2002-04-01

376

Immigrant incorporation in the garment industry of Los Angeles.  

PubMed

This study expands immigrant social network theory and examined employment patterns in the garment industry in Los Angeles, California, among Latino workers employed by Asian immigrant entrepreneurs. The study determined that a large percentage of immigrant employees found their jobs through the immigrant economy. Entrepreneurship increased the supply of local jobs and expanded the economy at destination at no expense to natives. Immigrant entrepreneurs bought firms from nonimmigrant owners or started new ones with an immigrant labor supply. Massey's index is flawed due to its exclusion of the role of entrepreneurs. Migration networks facilitate entrepreneurship, but some ethnic groups have fewer entrepreneurs, such as Mexicans and Central Americans. A 1993 Los Angeles survey identified 3642 garment factories in its county. Mean employment was 27.1 persons. The garment industry was the 4th largest industry in the area in 1996, with 98,700 employees. It represented 6% of all wage and salary employees in the City and 5.5% of the immigrant labor force in the County in 1990. 93% of garment workers in 1990 were immigrants. It is estimated that 51% of garment factory owners were Asians; most employees were Latinos. Census figures on sewing machine operators indicated 47.3% of owners were Whites and 42.45 were Asians. 53.3% of employees were other ethnic groups, 14.5% were Asians, and 32.2% were Whites. It is estimated that 47.2% of total employment was due to the immigration economy. 71.5% of the total employment in the garment industry was in the immigrant sector. PMID:12294981

Light, I; Bernard, R B; Kim, R

1999-01-01

377

CATALOG OF PROCESSED DATA FOR 7 BUILDINGS A.0466 Los Angeles, 15250 Ventura Blvd., Roof (13th floor) (pp. 7)  

E-print Network

APPENDIX A CATALOG OF PROCESSED DATA FOR 7 BUILDINGS A.0466 Los Angeles, 15250 Ventura Blvd., Roof Burbank, 3601 West Olive Ave., Roof (9th floor) (pp. 11) A.5451 Los Angeles, 6301 Owensmouth Ave., Roof (12th level) (pp. 8) A.5453 Los Angeles, 5805 Sepulveda Blvd., Roof (9th floor) (pp. 19) A.5455 Los

Southern California, University of

378

La reforma de la financiación autonómica: Un escenario de reparto de los recursos basado en las necesidades de gasto  

Microsoft Academic Search

RESUMEN El presente trabajo está centrado en el análisis y consideración de algunas cuestiones relativas a los métodos a emplear para garantizar, de una manera efectiva, la igualdad de acceso de todos los ciudadanos a los servicios públicos fundamentales. Para ello, y tras analizar los problemas básicos de la financiación autonómica y algunas posibles vías de reforma, se desarrolla un

José Sánchez Maldonado; Carmina Ordóñez de Haro; Carmen Molina Garrido

2007-01-01

379

Características de la demanda en los estudios econométricos sobre el turismo e implicaciones de política económica y de estrategia empresarial  

Microsoft Academic Search

En diferentes estudios econométricos sobre la demanda de turismo en España por parte de extranjeros, en los que ha participado el autor, se encuentra que: 1) las fuertes oscilaciones de la demanda se deben más a efectos de los precios que a variaciones en la renta de los turistas; 2) la elasticidad de la demanda respecto a los precios no

Antoni Espasa

1996-01-01

380

Educar y aprender. Nuevos entornos. XIX Premio Francisco Giner de los Ríos a la Mejora de la Calidad Educativa  

Microsoft Academic Search

Este volumen recoge los trabajos galardonados en la decimonovena edición de los Premios Francisco Giner de los Ríos a la Mejora de la Calidad Educativa, convocados por el Ministerio de Educación y Ciencia y la Fundación BBVA. El primer premio recayó en el trabajo Estrategias para el fomento de la igualdad entre los sexos en la Educación Secundaria , desarrollado

V. V. AA

381

Los CDC harn pruebas para detectar formaldehdo en casas mviles y trileres  

E-print Network

Los CDC harán pruebas para detectar formaldehído en casas móviles y tráileres A solicitud de FEMA dehído en un total de 500 casas móviles y tráileres entregados por FEMA. Los CDC harán estas pruebas en viviendas. Además, los resultados de estas pruebas ayudarán a FEMA a buscar otras opciones de vivienda para

382

Invariantes Topologicos en el ADN, los Fullerenos y la Teoria de Eleccion Social  

E-print Network

Invariantes Topol´ogicos en el ADN, los Fullerenos y la Teor´ia de Elecci´on Social S. Ardanza contextos (ADN, Fullerenos y Teor´ia de Elecci´on Social) pueden ser formulados en un lenguaje com´un, en propiedades de invariantes homot´opicos y geom´etricos asociados. Muchos de los procesos en el ADN, los Fu

Vazquez, Mariel

383

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

SciTech Connect

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 residues. Due to the age and use of the structures they were evaluated against criteria for the National Register of Historic Places. This process is briefly reviewed, along with the results, as well as actions implemented as a result of the condition and safety of the structures. A number of the structures have been decontaminated and demolished. Planning is still ongoing for the renovation of one structure, and the photographic and drawing records of the properties is near completion.

McGehee, E.D.; Pendergrass, A.K.

1997-05-21

384

Ecological baseline studies in Los Alamos and Guaje Canyons County of Los Alamos, New Mexico. A two-year study  

SciTech Connect

During the summers of 1993 and 1994, the Biological Resource Evaluations Team (BRET) of the Environmental Protection Group (ESH-8) conducted baseline studies within two canyon systems, Los Alamos and Guaje Canyons. Biological data was collected within each canyon to provide background and baseline information for Ecological Risk models. Baseline studies included establishment of permanent vegetation plots within each canyon along the elevational gradient. Then, in association with the various vegetation types, surveys were conducted for ground dwelling insects, birds, and small mammals. The stream channels associated with the permanent vegetation plots were characterized and aquatic macroinvertebrates collected within the stream monthly throughout a six-month period. The Geographic Position System (GPS) in combination with ARC INFO was used to map the study areas. Considerable data was collected during these surveys and are summarized in individual chapters.

Foxx, T.S. [comp.

1995-11-01

385

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

386

Relaciones filogenéticas de Euptychiina (Lepidoptera: Satyrinae) con base en características morfológicas de los adultos.  

E-print Network

??Marín Uribe, Mario Alejandro (2011) Relaciones filogenéticas de Euptychiina (Lepidoptera: Satyrinae) con base en características morfológicas de los adultos. Maestría thesis, Universidad Nacional de Colombia.… (more)

Marín Uribe, Mario Alejandro

2011-01-01

387

Comunicado a la Opinin Pblica Internacional Defendamos los Derechos Humanos del Pueblo Indgena Ngbe-Bugl en  

E-print Network

Comunicado a la Opinión Pública Internacional Defendamos los Derechos Humanos del Pueblo Indígena y defiende los derechos de las mujeres y pueblos indígenas, ante los hechos ocurridos en los últimos indignación y su rotundo rechazo a la grave violación de los derechos humanos que el pueblo indígena de Ngäbe

Islas, León

388

The Institute of Geophysics and Planetary Physics (IGPP) at Los Alamos National Laboratory (LANL) is one of the Los Alamos National Laboratory science institutes; it  

E-print Network

The Institute of Geophysics and Planetary Physics (IGPP) at Los Alamos National Laboratory of the University of California's Systemwide Institute of Geophysics and Planetary Physics. Its science mission. We address the problem within four specific disciplines: · Geophysics · Global

389

The Los Alamos Science Pillars The Science of Signatures  

SciTech Connect

As a national security science laboratory, Los Alamos is often asked to detect and measure the characteristics of complex systems and to use the resulting information to quantify the system's behavior. The Science of Signatures (SoS) pillar is the broad suite of technical expertise and capability that we use to accomplish this task. With it, we discover new signatures, develop new methods for detecting or measuring signatures, and deploy new detection technologies. The breadth of work at Los Alamos National Laboratory (LANL) in SoS is impressive and spans from the initial understanding of nuclear weapon performance during the Manhattan Project, to unraveling the human genome, to deploying laser spectroscopy instrumentation on Mars. Clearly, SoS is a primary science area for the Laboratory and we foresee that as it matures, new regimes of signatures will be discovered and new ways of extracting information from existing data streams will be developed. These advances will in turn drive the development of sensing instrumentation and sensor deployment. The Science of Signatures is one of three science pillars championed by the Laboratory and vital to supporting our status as a leading national security science laboratory. As with the other two pillars, Materials for the Future and Information Science and Technology for Predictive Science (IS&T), SoS relies on the integration of technical disciplines and the multidisciplinary science and engineering that is our hallmark to tackle the most difficult national security challenges. Over nine months in 2011 and 2012, a team of science leaders from across the Laboratory has worked to develop a SoS strategy that positions us for the future. The crafting of this strategy has been championed by the Chemistry, Life, and Earth Sciences Directorate, but as you will see from this document, SoS is truly an Institution-wide effort and it has engagement from every organization at the Laboratory. This process tapped the insight and imagination of many LANL staff and managers and resulted in a strategy which focuses on our strengths while recognizing that the science of signatures is dynamic. This report highlights the interdependence between SoS, advances in materials science, and advances in information technology. The intent is that SoS shape and inform Los Alamos investments in nuclear forensics, nuclear diagnostics, climate, space, energy, and biosurveillence; the areas of leadership that you will read about in this strategy document. The Science of Signatures is still a relatively new strategic direction for the Laboratory. The primary purpose of this document is tell Laboratory staff how SoS is being managed and give them a chance to get involved. A second important purpose is to inform the Department of Energy and our customers of our capability growth in this important scientific area. Questions concerning the SoS strategy and input to it are welcomed and may be directed to any member of the SoS Leadership Council or to the Chemistry, Life, and Earth Science Directorate Office.

Smith, Joshua E. [Los Alamos National Laboratory; Peterson, Eugene J. [Los Alamos National Laboratory

2012-09-13

390

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

391

Transpiration of urban forests in the Los Angeles metropolitan area.  

PubMed

Despite its importance for urban planning, landscape management, and water management, there are very few in situ estimates of urban-forest transpiration. Because urban forests contain an unusual and diverse mix of species from many regions worldwide, we hypothesized that species composition would be a more important driver of spatial variability in urban-forest transpiration than meteorological variables in the Los Angeles (California, USA) region. We used constant-heat sap-flow sensors to monitor urban tree water use for 15 species at six locations throughout the Los Angeles metropolitan area. For many of these species no previous data on sap flux, water use, or water relations were available in the literature. To scale sap-flux measurements to whole trees we conducted a literature survey of radial trends in sap flux across multiple species and found consistent relationships for angiosperms vs. gymnosperms. We applied this relationship to our measurements and estimated whole-tree and plot-level transpiration at our sites. The results supported very large species differences in transpiration, with estimates ranging from 3.2 +/- 2.3 kg x tree(-1) x d(-1) in unirrigated Pinus canariensis (Canary Island pine) to 176.9 +/- 75.2 kg x tree(-1) x d(-1) in Platanus hybrida (London planetree) in the month of August. Other species with high daily transpiration rates included Ficus microcarpa (laurel fig), Gleditsia triacanthos (honeylocust), and Platanus racemosa (California sycamore). Despite irrigation and relatively large tree size, Brachychiton populneas (kurrajong), B. discolor (lacebark), Sequoia sempervirens (redwood), and Eucalyptus grandis (grand Eucalyptus) showed relatively low rates of transpiration, with values < 45 kg x tree(-1) x d(-1). When scaled to the plot level, transpiration rates were as high as 2 mm/d for sites that contained both species with high transpiration rates and high densities of planted trees. Because plot-level transpiration is highly dependent on tree density, we modeled transpiration as a function of both species and density to evaluate a likely range of values in irrigated urban forests. The results show that urban forests in irrigated, semi-arid regions can constitute a significant use of water, but water use can be mitigated by appropriate selection of site, management method, and species. PMID:21639035

Pataki, Diane E; McCarthy, Heather R; Litvak, Elizaveta; Pincetl, Stephanie

2011-04-01

392

Radioactive source materials in Los Estados Unidos de Venezuela  

USGS Publications Warehouse

This report summarizes the data available on radioactive source materials in Los Estados Unidos de Venezuela accumulated by geologists of the Direccions Tecnica de Geolgia and antecedent agencies prior to June 1951, and the writers from June to November 1951. The investigation comprised preliminary study, field examination, office studies, and the preparation of this report, in which the areas and localities examined are described in detail, the uranium potentialities of Venezuela are summarized, and recommendations are made. Preliminary study was made to select areas and rock types that were known or reported to be radioactive or that geologic experience suggests would be favorable host for uranium deposits, In the office, a study of gamma-ray well logs was started as one means of amassing general radiometric data and of rapidly scanning many of ye rocks in northern Venezuela; gamma-ray logs from about 140 representative wells were examined and their peaks of gamma intensity evaluated; in addition samples were analyzed radiometrically, and petrographically. Radiometic reconnaissance was made in the field during about 3 months of 1951, or about 12 areas, including over 100 localities in the State of Miranda, Carabobo, Yaracuy, Falcon, Lara, Trujillo, Zulia, Merida, Tachira, Bolivar, and Territory Delta Amacuro. During the course of the investigation, both in the filed and office, information was given about geology of uranium deposits, and in techniques used in prospecting and analysis. All studies and this report are designed to supplement and to strengthen the Direccion Tecnica de Geologias's program of investigation of radioactive source in Venezuela now in progress. The uranium potentialities of Los Estados de Venezuela are excellent for large, low-grade deposits of uraniferous phospahtic shales containing from 0.002 to 0.027 percent uranium; fair, for small or moderate-sized, low-grade placer deposits of thorium, rare-earth, and uranium minerals; poor, for high-grade hydrothermal pitchblende deposits; and highly possible for small, medium- to high-grade despots of carnotite-or copper-uranium bearing sandstone. Recommendations for the Venezuelan uranium program include 1) the systematic collection of a mass general radiometric data by examining sample collections, expanding the gamma-ray program, encouraging the use of Geiger counter by field geologists, and by enlisting the aid of the general public; 2) , the examination of specific areas or localities, chosen on the basis of geologic favorability from the results of the amassing of data, or obtained by hints and rumors; 3), the organization of a unit within the Direccion Tecnica de Geologica to direct, collection, and collate metric data. It is emphasized that to be most fruitful the program requires the application of sounds and imaginative geologic theory.

Wyant, Donald G.; Sharp, William N.; Rodriguez, Carlos Ponte

1953-01-01

393

Investigation of strong ground rotation attenuation in Los Angeles area  

NASA Astrophysics Data System (ADS)

Recently, the instrument technology (e.g., ring laser) is capable to accurately record the ground rotational motions induced by earthquakes. However, due to the scarcity of data, the systematic ground rotation variation is still a challenge. In order to answer that question, we simulate several M7 earthquakes with different source scenarios on the Newport-Inglewood (NI) fault embedded in the Los Angeles basin and investigate the corresponding propagation properties. At first, complex ground rotation variations are observed with respect to the source scenario (i.e., varying hypocentre location and varying slip history). With the decrease of the fault distance, the amplitude of both the acceleration and the rotation rate stop to increase. For the two components of acceleration and rotation rate, there are obviously high values in some fault distance range where a sedimentary basin is located (basin amplification effect). Finally, by comparing the acceleration and rotation rate at different fault distance, we conclude that the rotation rate follows the same rule to attenuate with the fault distance, except for the very small fault distance range. The peak amplitude of the vertical rotation rate changes more dramatically with the fault distance than the the other two components.

Wang, H.

2012-12-01

394

Geologic seepage of methane and light alkanes in Los Angeles  

NASA Astrophysics Data System (ADS)

Natural geologic seepage of methane from underground oil and natural gas reservoirs has been suggested to be an underreported part of the global methane budget. Other light alkanes are also given off in combination with the methane seepage, making it possible that geologic seepage is also a potentially significant global source of these light alkanes. This study reports C1-C5 findings from geologic seepage made in the Los Angeles region. Microseepage, invisible escape of gases, was measured primarily at Kenneth Hahn Regional Park, while macroseepage, the visible release of gases, was measured at the La Brea Tar Pits. Samples were collected using stainless steel canisters and flux chambers and were analyzed using gas chromatography with flame ionization detectors (GC-FID). Average microseepage flux rates of 0.95 ?g m-2 h-1 for ethane and 0.51 ?g m-2 h-1 were found for propane, while average macroseepage rates for methane, ethane, and propane were 664, 19.8, and 18.1 mg m-2 h-1 respectively. Relationships between microseepage flux rate and location of underground oil and natural deposit and earthquake fault lines are presented. Additionally, the relative importance of findings in context with global budgets and local air quality is discussed.

Doezema, L. A.; Chang, K.; Baril, R.; Nwachuku, I.; Contreras, P.; Marquez, A.; Howard, D.

2013-12-01

395

High power KrF laser development at Los Alamos  

SciTech Connect

The objective of the high power laser development program at Los Alamos is to appraise the potential of the KrF laser as a driver for inertial confinement fusion (ICF), ultimately at energy levels that will produce high target gain (gain of order 100). A KrF laser system prototype, the 10-kJ Aurora laser, which is nearing initial system operation, will serve as a feasibility demonstration of KrF technology and system design concepts appropriate to large scale ICF driver systems. The issues of affordable cost, which is a major concern for all ICF drivers now under development, and technology scaling are also being examined. It is found that, through technology advances and component cost reductions, the potential exists for a KrF driver to achieve a cost goal in the neighborhood of $100 per joule. The authors suggest that the next step toward a multimegajoule laboratory microfusion facility (LMF) is an ''Intermediate Driver'' facility in the few hundred kilojoule to one megajoule range, which will help verify the scaling of driver technology and cost to an LMF size. An Intermediate Driver facility would also increase the confidence in the estimates of energy needed for an LMF and would reduce the risk in target performance. 5 refs., 4 figs., 1 tab.

McDonald, T.; Cartwright, D.; Fenstermacher, C.; Figueira, J.; Goldstone, P.; Harris, D.; Mead, W.; Rosocha, L.

1988-01-01

396

Los Alamos Shows Airport Security Technology at Work  

SciTech Connect

Los Alamos scientists have advanced a Magnetic Resonance Imaging (MRI) technology that may provide a breakthrough for screening liquids at airport security. They've added low-power X-ray data to the mix, and as a result have unlocked a new detection technology. Funded in part by the Department of Homeland Security's Science and Technology Directorate, the new system is named MagRay. The goal is to quickly and accurately distinguish between liquids that visually appear identical. For example, what appears to be a bottle of white wine could potentially be nitromethane, a liquid that could be used to make an explosive. Both are clear liquids, one would be perfectly safe on a commercial aircraft, the other would be strictly prohibited. How to tell them apart quickly without error at an airport security area is the focus of Michelle Espy, Larry Schultz and their team. In this video, Espy and the MagRay team explain how the new technology works, how they've developed an easy operator interface, and what the next steps might be in transitioning this technology to the private sector.

Espy, Michelle; Schultz, Larry; Hunter, James

2013-11-25

397

Los Alamos Shows Airport Security Technology at Work  

ScienceCinema

Los Alamos scientists have advanced a Magnetic Resonance Imaging (MRI) technology that may provide a breakthrough for screening liquids at airport security. They've added low-power X-ray data to the mix, and as a result have unlocked a new detection technology. Funded in part by the Department of Homeland Security's Science and Technology Directorate, the new system is named MagRay. The goal is to quickly and accurately distinguish between liquids that visually appear identical. For example, what appears to be a bottle of white wine could potentially be nitromethane, a liquid that could be used to make an explosive. Both are clear liquids, one would be perfectly safe on a commercial aircraft, the other would be strictly prohibited. How to tell them apart quickly without error at an airport security area is the focus of Michelle Espy, Larry Schultz and their team. In this video, Espy and the MagRay team explain how the new technology works, how they've developed an easy operator interface, and what the next steps might be in transitioning this technology to the private sector.

Espy, Michelle; Schultz, Larry; Hunter, James

2014-06-24

398

New Mexicans` perceptions of Los Alamos National Laboratory. Final report  

SciTech Connect

Since May, 1990, the Institute for Public Policy (IPP) has published Quarterly Profiles (QPs) of New Mexico`s citizenry. Each QP has focused on a different issue, but they have all asked a set of standard items, including questions about the public`s perceptions of the Los Alamos National Laboratories (LANL). Each year, the IPP has used the University of New Mexico`s Survey Research Center to conduct a telephone survey of a representative random sample of New Mexicans, and respondents were asked whether they had favorable or unfavorable views of LANL and the degree to which they perceived LANL as an environmentally responsible institution. As a result of this sustained research effort, the IPP now has a collection of fifteen consecutive QPs. With an aggregate sample size of over 8800, we are now able to make precise statistical inferences with greater confidence than was possible when using individual QP samples. Such an extremely large sample mitigates two kinds of common survey research problems.

NONE

1994-09-01

399

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

400

Results from the Argonne, Los Alamos, JAERI collaboration  

SciTech Connect

Four sample packets containing elemental Ti, Fe, Ni, Cu, Nb, Ag, Eu, Tb and Hf have been irradiated in three distinct accelerator neutron fields, at Argonne National Laboratory and Los Alamos National Laboratory, USA, and Japan Atomic Energy Research Institute, Tokai, Japan. The acquired experimental data include differential cross sections and integral cross sections for the continuum neutron spectrum produced by 7-MeV deuterons incident on thick Be-metal target. The U-238(n,f) cross section was also measured at 10.3 MeV as a consistency check on the experimental technique. This the third progress report on a project which has been carried out under the auspices of an IAEA Coordinated Research Program entitled ``Activation Cross Sections for the Generation Of Long-lived Radionuclides of Importance in Fusion Reactor Technology``. The present report provides the latest results from this work. Comparison is made between the 14.7-MeV cross-section values obtained from the separate investigations at Argonne and JAERI. Generally, good agreement observed within the experimental errors when consistent sample parameters, radioactivity decay data and reference cross values are employed. A comparison is also made between the experimental results and those derived from calculations using a nuclear model. Experimental neutron information on the Be(d,n) neutron spectrum was incorporated in the comparisons for the integral results. The agreement is satisfactory considering the various uncertainties that are involved.

Meadows, J.; Smith, D.; Greenwood, L. [Argonne National Lab., IL (United States); Haight, R. [Los Alamos National Lab., NM (United States); Ikeda, Y.; Konno, C. [Japan Atomic Energy Research Inst., Ibaraki (Japan)

1993-07-01

401

Plutonium metal preparation and purification at Los Alamos, 1984  

SciTech Connect

Plutonium metal preparation and purification are well established at Los Alamos. Metal is prepared by calcothermic reduction of both PuF/sub 4/ and PuO/sub 2/. Metal is purified by halide slagging, casting, and electrorefining. The product from the production sequence is ultrapure plutonium metal. All of the processes involve high temperature operation and all but casting involve molten salt media. Development efforts are fourfold: (1) recover plutonium values from residues; (2) reduce residue generation through process improvements and changes; (3) recycle of reagents, and (4) optimize and integrate all processes into a close-loop system. Plutonium residues are comprised of oxides, chlorides, colloidal metal suspensions, and impure metal heels. Pyrochemical recovery techniques are under development to address each residue. In addition, we are looking back at each residue generation step and are making process changes to reduce plutonium content in each residue. Reagent salt is the principle media used in pyrochemical processing. The regeneration and recycle of these reagents will both reduce our waste handling and operating expense. The fourth area, process optimization, involves both existing processes and new process developments. A status of efforts in all four of these areas will be summarized.

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

1984-01-01

402

Atomic Structure Calculations from the Los Alamos Atomic Physics Codes  

DOE Data Explorer

The well known Hartree-Fock method of R.D. Cowan, developed at Los Alamos National Laboratory, is used for the atomic structure calculations. Electron impact excitation cross sections are calculated using either the distorted wave approximation (DWA) or the first order many body theory (FOMBT). Electron impact ionization cross sections can be calculated using the scaled hydrogenic method developed by Sampson and co-workers, the binary encounter method or the distorted wave method. Photoionization cross sections and, where appropriate, autoionizations are also calculated. Original manuals for the atomic structure code, the collisional excitation code, and the ionization code, are available from this website. Using the specialized interface, you will be able to define the ionization stage of an element and pick the initial and final configurations. You will be led through a series of web pages ending with a display of results in the form of cross sections, collision strengths or rates coefficients. Results are available in tabular and graphic form.

Cowan, R. D.

403

Los Alamos National Laboratory 1995 self assessment report  

SciTech Connect

The Los Alamos National Laboratory (LANL) Safeguards and Security (S and S) Assurance Program (AP) is designed to ensure the adequacy and effectiveness of the LANL S and S program. The Assurance Program provides a mechanism for discovering deficiencies, determining causes, conducting risk assessments, implementing corrective actions, and documenting the assessment process. Selection of organizations for self assessments is based on the criteria established in the LANL S and S Assurance Program. For FY 1995, 12 organizations were selected for self assessments, these organizations are identified fin the schedule at Appendix A. The S and S topical areas selected for review in each organization varied depending on their security interests and included: Program Planning and Management (PPM); Protection Program Operations (PPO); Material Control and Accountability (MC and A); Computer and Communications Security (COMPSEC and COMSEC); Information Security (INFOSEC); Personnel Security (PERSEC); and Operational Security (OPSEC). The objective was to ascertain the effectiveness of S and S programs in each organization, its formality of operations, and its integration with the overall Laboratory S and S program. The goal was to meet both the DOE self-assessment requirements and the UC performance criteria and document the results.

NONE

1995-06-30

404

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

405

Explorer at Los Alamos: A library for the future  

SciTech Connect

Since 1993, Los Alamos National Laboratory, has been developing World Wide Web (WWW) applications to facilitate access to vast quantities of information critical to the successful operation of a nuclear weapons facility Explorer is a web-based tool that integrates full-text search and retrieval technology, custom user in interface faces, user-friendly navigation tools, extremely large document collections, and data collection and workflow applications. Explorer`s first major thrust was to enable quick access to regulatory and policy information used by Department of Energy facilities throughout the country. Today, Explorer users can easily search document collections containing, millions of pages of information scattered across Web sites around the country. Over fifteen large applications containing multiple collections are searchable through Explorer, and the subject areas range from DOE regulations to quality management-related resources to technology transfer opportunities. Explorer has succeeded because it provides quick and easy access to stored data across the Web; it saves time and reduces costs in comparison with traditional information distribution, access, and retrieval methods.

Waters, M.; McDonald, J.

1998-03-01

406

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

407

Final Progress Report: Internship at Los Alamos National Laboratory  

SciTech Connect

Originally I was tasked fluidized bed modeling, however, I changed projects. While still working with ANSYS Fluent, I performed a study of particle tracks in glove boxes. This is useful from a Health-Physics perspective, dealing respirable particles that can be hazardous to the human body. I iteratively tested different amounts of turbulent particles in a steady-state flow. The goal of this testing was to discover how Fluent handles built-in Rosin-Rammler distributions for particle injections. I worked on the health physics flow problems and distribution analysis under the direction of two mentors, Bruce Letellier and Dave Decroix. I set up and ran particle injection calculations using Fluent. I tried different combinations of input parameters to produce sets of 500,000, 1 million, and 1.5 million particles to determine what a good test case would be for future experiments. I performed a variety of tasks in my work as an Undergraduate Student Intern at LANL this summer, and learned how to use a powerful CFD application in addition to expanding my skills in MATLAB. I enjoyed my work at LANL and hope to be able to use the experience here to further my career in the future working in a security-conscious environment. My mentors provided guidance and help with all of my projects and I am grateful for the opportunity to work at Los Alamos National Laboratory.

Dunham, Ryan Q. [Los Alamos National Laboratory

2012-08-10

408

Superconducting multicell cavity development program at Los Alamos  

SciTech Connect

The superconducting rf (SCRF) cavity Development Program at Los Alamos has designed, fabricated, and tested single-cell niobium cavities at 3-GHz and 805-MHz. This work is being done in preparation for procuring and testing a multicell niobium cavity. The multicell cavity is designed to accelerate protons at {beta} = 0.9; initial tests will be without beam. Progammmatic changes have required us to modify our plans to install a 6800-liter helium cryostat and a 12.8-g/s helium pump. We will use an installed cryostat to test the multicell cavity. Also, the cavity will be modified from a seven-cell to a four-cell structure to match the dimensions of the installed cryostat. Previous reports concentrated on 3-GHz results. In this paper, some of the latest results of the 805-MHz cavity tests are presented. Modifications to allow high pulsed power (HPP) testing on 805-MHz single- and four-cell cavities are proceeding. Glow discharge cleaning of an 805-MHz niobium cavity resulted in a decrease in cavity performance. The cavity was restored to previous performance levels with buffered chemical polishing (bcp). Initial results with high-pressure water cleaning show the process is useful in restoring cavity performance.

Rusnak, B.; Spalek, G.: Gray, E.; DiMarco, J.N.; DeHaven, R.; Novak, J.; Walstrom, P.; Zumbro, J.; Thiessen, H.A. [Los Alamos National Lab., NM (United States); Langenbrunner, J. [Minnesota Univ., Minneapolis, MN (United States)

1993-06-01

409

Superconducting multicell cavity development program at Los Alamos  

SciTech Connect

The superconducting rf (SCRF) cavity Development Program at Los Alamos has designed, fabricated, and tested single-cell niobium cavities at 3-GHz and 805-MHz. This work is being done in preparation for procuring and testing a multicell niobium cavity. The multicell cavity is designed to accelerate protons at [beta] = 0.9; initial tests will be without beam. Progammmatic changes have required us to modify our plans to install a 6800-liter helium cryostat and a 12.8-g/s helium pump. We will use an installed cryostat to test the multicell cavity. Also, the cavity will be modified from a seven-cell to a four-cell structure to match the dimensions of the installed cryostat. Previous reports concentrated on 3-GHz results. In this paper, some of the latest results of the 805-MHz cavity tests are presented. Modifications to allow high pulsed power (HPP) testing on 805-MHz single- and four-cell cavities are proceeding. Glow discharge cleaning of an 805-MHz niobium cavity resulted in a decrease in cavity performance. The cavity was restored to previous performance levels with buffered chemical polishing (bcp). Initial results with high-pressure water cleaning show the process is useful in restoring cavity performance.

Rusnak, B.; Spalek, G.: Gray, E.; DiMarco, J.N.; DeHaven, R.; Novak, J.; Walstrom, P.; Zumbro, J.; Thiessen, H.A. (Los Alamos National Lab., NM (United States)); Langenbrunner, J. (Minnesota Univ., Minneapolis, MN (United States))

1993-01-01

410

Population Files for use with CAP88 at Los Alamos  

SciTech Connect

CAP88 (Clean Air Act Assessment Package 1988) is a computer model developed for the US Environmental Protection Agency to assess the potential dose from radionuclide emissions to air and to demonstrate compliance with the Clean Air Act. It has options to calculate either individual doses, in units of mrem, or a collective dose, also called population dose, in units of person-rem. To calculate the collective dose, CAP88 uses a population file such as LANL.pop, that lists the number of people in each sector (N, NNE, NE, etc.) as a function of distance (1 to 2 km, etc.) out to a maximum radius of 80 km. Early population files are described in the Los Alamos National Laboratory (LANL) Environmental Reports for 1985 (page 14) and subsequent years. LA-13469-MS describes a population file based on the 1990 census. These files have been updated several times, most recently in 2006 for CAP88 version 3. The 2006 version used the US census for 2000. The present paper describes the 2012 updates, using the 2010 census.

McNaughton, Michael W [Los Alamos National Laboratory; Brock, Burgandy R [Los Alamos National Laboratory

2012-07-10

411

Chemical decontamination technical resources at Los Alamos National Laboratory (2008)  

SciTech Connect

This document supplies information resources for a person seeking to create planning or pre-planning documents for chemical decontamination operations. A building decontamination plan can be separated into four different sections: Pre-planning, Characterization, Decontamination (Initial response and also complete cleanup), and Clearance. Of the identified Los Alamos resources, they can be matched with these four sections: Pre-planning -- Dave Seidel, EO-EPP, Emergency Planning and Preparedness; David DeCroix and Bruce Letellier, D-3, Computational fluids modeling of structures; Murray E. Moore, RP-2, Aerosol sampling and ventilation engineering. Characterization (this can include development projects) -- Beth Perry, IAT-3, Nuclear Counterterrorism Response (SNIPER database); Fernando Garzon, MPA-11, Sensors and Electrochemical Devices (development); George Havrilla, C-CDE, Chemical Diagnostics and Engineering; Kristen McCabe, B-7, Biosecurity and Public Health. Decontamination -- Adam Stively, EO-ER, Emergency Response; Dina Matz, IHS-IP, Industrial hygiene; Don Hickmott, EES-6, Chemical cleanup. Clearance (validation) -- Larry Ticknor, CCS-6, Statistical Sciences.

Moore, Murray E [Los Alamos National Laboratory

2008-01-01

412

Organizational cultural survey of the Los Alamos Site  

SciTech Connect

An Organizational Survey (OS) was administered at the Los Alamos Site that queried employees on the subjects of organizational culture, various aspects of communications, employee commitment, work group cohesion, coordination of work, environmental, safety, and health concerns, hazardous nature of work, safety and overall job satisfaction. The purpose of the OS is to measure in a quantitative and objective way the notion of ``culture;`` that is, the values, attitudes, and beliefs of the individuals working within the organization. In addition, through the OS, a broad sample of individuals can be reached that would probably not be interviewed or observed during the course of a typical assessment. The OS also provides a descriptive profile of the organization at one point in time that can then be compared to a profile taken at a different point in time to assess changes in the culture of the organization. While comparisons among groups are made, it is not the purpose of this report to make evaluative statements of which profile may be positive or negative. However, using the data presented in this report in conjunction with other evaluative activities, may provide useful insight into the organization.

Not Available

1991-11-01

413

Organizational cultural survey of the Los Alamos Site  

SciTech Connect

An Organizational Survey (OS) was administered at the Los Alamos Site that queried employees on the subjects of organizational culture, various aspects of communications, employee commitment, work group cohesion, coordination of work, environmental, safety, and health concerns, hazardous nature of work, safety and overall job satisfaction. The purpose of the OS is to measure in a quantitative and objective way the notion of culture;'' that is, the values, attitudes, and beliefs of the individuals working within the organization. In addition, through the OS, a broad sample of individuals can be reached that would probably not be interviewed or observed during the course of a typical assessment. The OS also provides a descriptive profile of the organization at one point in time that can then be compared to a profile taken at a different point in time to assess changes in the culture of the organization. While comparisons among groups are made, it is not the purpose of this report to make evaluative statements of which profile may be positive or negative. However, using the data presented in this report in conjunction with other evaluative activities, may provide useful insight into the organization.

Not Available

1991-11-01

414

Los Estados Unidos y la República de Chile se unen para combatir el cáncer  

Cancer.gov

Una nueva alianza entre el Instituto Nacional del Cáncer de los Estados Unidos y el Ministerio de Salud de la República de Chile, tiene el propósito de acelerar el avance contra el cáncer en la población hispana en los Estados Unidos y en América Latina.

415

Significado de los cambios en el cuello uterino: Guía para la salud de la mujer  

Cancer.gov

Explica los pasos que deben seguirse después de un resultado anormal en una prueba de Pap o del VPH, así como las formas de diagnosticar y tratar las afecciones en el cuello uterino. También contiene información sobre las pautas para los exámenes de detección y las vacunas contra el VPH.

416

Los Alamos climatology summary including latest normals from 1961--1990  

Microsoft Academic Search

This report contains a summary of Los Alamos climate and analyses of basic weather variables from late 1910 through 1991. The first few sections offer a description of the local geography and large-scale weather patterns that affect Los Alamos. Temperature and precipitation analyses are presented in the next few sections. Updated 30-year temperature and precipitation normals ending in 1990 are

1992-01-01

417

Strong shaking in Los Angeles expected from southern San Andreas K. B. Olsen,1  

E-print Network

Strong shaking in Los Angeles expected from southern San Andreas earthquake K. B. Olsen,1 S. M. Day.5) earthquake sometime during the next few decades. New simulations show that the chain of sedimentary basins between San Bernardino and downtown Los Angeles form an effective waveguide that channels Love waves along

Olsen, Kim Bak

418

Costo de capital con costo del patrimonio apalancado como el riesgo de los escudos fiscales  

Microsoft Academic Search

Se presenta la derivación de costo de capital bajo la premisa del ahorro de impuestos de riesgo descuento con el costo de capital apalancado. Se demuestra que la formulación es coherente y se deriva de los principios financieros básicos. Esta formulación es válida para los flujos de caja finitos y perpetuidades sin crecimiento. Además, se puede calcular sin la circularidad

Joseph Tham; Ignacio Velez Pareja

2010-01-01

419

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

420

¿Puede la escuela del siglo XXI educar a los ciudadanos y ciudadanas del siglo XXI?  

Microsoft Academic Search

Los graves problemas de nuestro mundo reclaman una urgente respuesta educativa por parte del sistema escolar, pero esa respuesta no es adecuada, pues dicho sistema sigue funcionando con características muy tradicionales. La educación para la ciudadanía se presenta como una posibilidad de reorientar la educación hacia finalidades más acordes con los retos que ésta debe afrontar actualmente; sin embargo, entre

Francisco F. García Pérez; Nicolás de Alba Fernández

2008-01-01

421

The Sima de los Huesos crania (Sierra de Atapuerca, Spain). A comparative study  

Microsoft Academic Search

The Sima de los Huesos (Sierra de Atapuerca) cranial remains found up to and including the 1995 field season are described and compared with other fossils in order to assess their evolutionary relationships. The phenetic affinities of the Sima de los Huesos crania and a large sample ofHomofossils are investigated through principal component analyses. Metrical comparisons of the Sima de

J. L. Arsuaga; I. Mart??nez; A. Gracia; C. Lorenzo

1997-01-01

422

Coming out in Spain: 'Los Invisibles Published Thursday 24th February 11  

E-print Network

Coming out in Spain: 'Los Invisibles Published Thursday 24th February 11 Dr Richard Cleminson in Spain. His co-authored 'Los Invisibles': A History of Male Homosexuality in Spain, 1850 been published in Spain. "The history of this period must never be forgotten. It serves not only

Berzins, M.

423

Actitudes Éticas de los estudiantes y egresados en carrera de medicina con metodologías activas  

PubMed Central

El presente estudio tiene por objeto desarrollar un diagnostico de la inserción integrada de la ética en la carrera de medicina brasileña con una metodología de aprendizaje basada en problemas y describir las percepciones de actitudes éticas de los estudiantes y egresados. El diseño metodológico es un estudio de caso, descriptivo y documental, con abordaje cualitativo y cuantitativo. La muestra de esta investigación ha sido constituida por 120 estudiantes y 40 egresados de dos promociones del Curso de Medicina de la ESCS. Este proyecto fue aprobado por el Comité de Ética en Investigación - SES/DF. Los estudiantes y egresados de la ESCS demostraron un buen manejo en el abordaje de los conflictos éticos y respeto a los pacientes. Sin embargo, el análisis de sensibilidad ética mostró una fragilidad en las percepciones y aptitudes inapropiadas de los estudiantes de la carrera de medicina, identificada básicamente en los años iniciales, que necesitan más discusiones sistematizadas sobre los aspectos éticos y bioéticos integrados a las actividades prácticas para estimular y fortalecer la reflexión ética de los estudiantes. PMID:20981242

Novaes, Maria Rita Carvalho Garbi; Novaes, Luiz Carlos Garcez; Guilhem, Dirce; Stepke, Fernando Lolas; Silveira, Carla Cristina Costa; Komatsu, Ricardo Shoiti; Trindade, Eliane Mendonça Vilar; Guiotti, Murilo Galvão

2010-01-01

424

33 CFR 167.502 - In the approaches to Los Angeles-Long Beach: Western approach.  

Code of Federal Regulations, 2011 CFR

...2011-07-01 false In the approaches to Los Angeles-Long Beach: Western approach. 167.502 Section 167.502 Navigation...Coast § 167.502 In the approaches to Los Angeles-Long Beach: Western approach. (a) A separation zone is bounded...

2011-07-01

425

33 CFR 110.100 - Los Angeles and Long Beach Harbors, Calif.  

Code of Federal Regulations, 2011 CFR

...2011-07-01 false Los Angeles and Long Beach Harbors, Calif. 110.100 Section...Areas § 110.100 Los Angeles and Long Beach Harbors, Calif. (a) [Reserved...beginning. (c) Area B-1. Long Beach outer harbor along east side of Pier 400 beginning at latitude...

2011-07-01

426

33 CFR 110.100 - Los Angeles and Long Beach Harbors, Calif.  

...2014-07-01 false Los Angeles and Long Beach Harbors, Calif. 110.100 Section...Areas § 110.100 Los Angeles and Long Beach Harbors, Calif. (a) [Reserved...beginning. (c) Area B-1. Long Beach outer harbor along east side of Pier 400 beginning at latitude...

2014-07-01

427

33 CFR 167.502 - In the approaches to Los Angeles-Long Beach: Western approach.  

Code of Federal Regulations, 2012 CFR

...2012-07-01 false In the approaches to Los Angeles-Long Beach: Western approach. 167.502 Section 167.502 Navigation...Coast § 167.502 In the approaches to Los Angeles-Long Beach: Western approach. (a) A separation zone is bounded...

2012-07-01

428

33 CFR 167.502 - In the approaches to Los Angeles-Long Beach: Western approach.  

...2014-07-01 false In the approaches to Los Angeles-Long Beach: Western approach. 167.502 Section 167.502 Navigation...Coast § 167.502 In the approaches to Los Angeles-Long Beach: Western approach. (a) A separation zone is bounded...

2014-07-01

429

33 CFR 167.502 - In the approaches to Los Angeles-Long Beach: Western approach.  

Code of Federal Regulations, 2010 CFR

...2010-07-01 false In the approaches to Los Angeles-Long Beach: Western approach. 167.502 Section 167.502 Navigation...Coast § 167.502 In the approaches to Los Angeles-Long Beach: Western approach. (a) A separation zone is bounded...

2010-07-01

430

33 CFR 167.502 - In the approaches to Los Angeles-Long Beach: Western approach.  

Code of Federal Regulations, 2013 CFR

...2013-07-01 false In the approaches to Los Angeles-Long Beach: Western approach. 167.502 Section 167.502 Navigation...Coast § 167.502 In the approaches to Los Angeles-Long Beach: Western approach. (a) A separation zone is bounded...

2013-07-01

431

33 CFR 110.100 - Los Angeles and Long Beach Harbors, Calif.  

Code of Federal Regulations, 2012 CFR

...2012-07-01 false Los Angeles and Long Beach Harbors, Calif. 110.100 Section...Areas § 110.100 Los Angeles and Long Beach Harbors, Calif. (a) [Reserved...beginning. (c) Area B-1. Long Beach outer harbor along east side of Pier 400 beginning at latitude...

2012-07-01

432

33 CFR 110.100 - Los Angeles and Long Beach Harbors, Calif.  

Code of Federal Regulations, 2013 CFR

...2013-07-01 false Los Angeles and Long Beach Harbors, Calif. 110.100 Section...Areas § 110.100 Los Angeles and Long Beach Harbors, Calif. (a) [Reserved...beginning. (c) Area B-1. Long Beach outer harbor along east side of Pier 400 beginning at latitude...

2013-07-01

433

News from Los Angeles: Billions for Schools and Who Is Watching? Proposition BB and Architects.  

ERIC Educational Resources Information Center

Discusses the role of Los Angeles Unified School District's Proposition BB Blue Ribbon Citizens' Oversight Committee, charged with overseeing $4 billion in school construction, and particularly the role of the American Institute of Architects of Los Angeles within the board. (EV)

Lehrer, Michael B.

1999-01-01

434

Review of the Organizational Structure and Operations of the Los Angeles Unified School District  

ERIC Educational Resources Information Center

The Los Angeles Unified School District is the second largest public school system in the United States, and one of the largest organizations of any kind in the country. As with urban school systems across the country, the Los Angeles school district is under enormous pressure to improve. The district is under public scrutiny and is the subject of…

Council of the Great City Schools, 2006

2006-01-01

435

Discriminación y redes sociales: Popularidad entre los estudiantes de bachillerato en Argentina  

Microsoft Academic Search

El objetivo de este trabajo es adquirir un mejor entendimiento del fenómeno de la popularidad de compañeros de clase durante la adolescencia y detectar señales de discriminación. En Argentina, estudiantes de secundaria seleccionan y clasifican a 10 compañeros de clase con los que les gustaría formar equipo. Se descubrió que los estudiantes físicamente atractivos y de alto rendimiento académico son

Víctor Elías; Lucas Ronconi; Julio Elías

2007-01-01

436

CONVOCATORIA PRESENTACIN TRABAJO FIN DE GRADO GRADO EN CIENCIA Y TECNOLOGA DE LOS ALIMENTOS  

E-print Network

CONVOCATORIA PRESENTACI�N TRABAJO FIN DE GRADO GRADO EN CIENCIA Y TECNOLOGÍA DE LOS ALIMENTOS JULIO Ciencia y Tecnología de los Alimentos al acto de presentación pública del citado trabajo con la siguiente

Rey Juan Carlos, Universidad

437

El azcar y los alimentos azucarados tienen el mismo efecto en la glucosa que  

E-print Network

El azúcar y los alimentos azucarados tienen el mismo efecto en la glucosa que otros alimentos Extensión Cooperativa Martha Archuleta, PhD, RD Especialista en alimentos y nutrición de Extensión saludable si usted no permite que estos reemplacen a los alimentos nutritivos ricos en carbohidratos como

438

DEL CAMPO A LA CIUDAD EN COLOMBIA. LA INFILTRACIÓN URBANA DE LOS SEÑORES DE LA GUERRA  

Microsoft Academic Search

Para sorpresa de la opinión en Colombia, la mafia en el sentido de la definición tradicional de ‘empresarios de la protección’, asociada a la imagen de los mafiosos sicilianos, rusos o los japoneses de la yakuza, es un fenómeno muy reciente en la historia de las ciudades del país. Más de una década posterior al apogeo de Pablo Escobar y

Gustavo Duncan

2005-01-01

439

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

440

76 FR 14103 - The Jewelry Stream; Los Angeles, CA, Notice of Negative Determination on Reconsideration  

Federal Register 2010, 2011, 2012, 2013

...Administration [TA-W-73,145] The Jewelry Stream; Los Angeles, CA, Notice of Negative...workers and former workers of The Jewelry Stream, Los Angeles, California. On November...75 FR 71455). Workers of The Jewelry Stream are engaged in employment related to...

2011-03-15

441

"USA Today": Comparative Analysis with Two National and Two Los Angeles Daily Newspapers. Research Bulletin.  

ERIC Educational Resources Information Center

Sections of the newspaper "USA Today" were compared with corresponding sections of four major newspapers--the "New York Times," the "Wall Street Journal," the "Los Angeles Herald Examiner," and the "Los Angeles Times"--to determine what editorial components made "USA Today" different and whether the paper would succeed. Judgment criteria included…

Ames, Steve; And Others

442

Recollections of a very junior physicist at Los Alamos, 1944-1946  

NASA Astrophysics Data System (ADS)

The author came to Los Alamos as a member of the British Mission after two years of making fission cross section measurements at the Cavendish Laboratory. He worked in a group headed by Egon Bretscher in Enrico Fermi's F Division. The talk presents his personal memories and experiences at Los Alamos as compared to his life and work in wartime Britain.

French, Anthony P.

2008-04-01

443

La Complejidad en la Ciencia Ciertos fenmenos en la naturaleza emergen nicamente cuando los elementos  

E-print Network

La Complejidad en la Ciencia Ciertos fenómenos en la naturaleza emergen únicamente cuando los los propios elementos carecen. Existen nuevas tendencias en la ciencia moderna que han tomado el reto llama ciencia y tecnología de la complejidad. AUTOR | Miguel A.F. Sanjuán (Catedrático de Física

Rey Juan Carlos, Universidad

444

The Urban Los Angeles American Indian Experience: Perspectives from the Field  

ERIC Educational Resources Information Center

This article reports on the findings from two studies conducted in the Los Angeles urban American Indian/Alaska Native (AIAN) community. The research investigated the relationship between the American Indian and Alaska Native cultural values and the social problems that challenge the urban Native community in the greater Los Angeles and Orange…

Ledesma, Rita

2007-01-01

445

In Search of the Ideal Reader for Nonfiction Children's Books about el Dia de Los Muertos  

ERIC Educational Resources Information Center

In mainstream American culture, death is not usually talked about openly. It is discussed privately among adults because death is often regarded as a final ending. Nevertheless, many elementary school teachers discuss el Dia de los Muertos with their students. The celebration of el Dia de los Muertos, in contrast to dominant ideology, commemorates…

Davila, Denise

2012-01-01

446

DERECHOS DE LOS EMPLEADOS SEGN LA LEY NACIONAL DE RELACIONES DEL TRABAJO  

E-print Network

DERECHOS DE LOS EMPLEADOS SEG�N LA LEY NACIONAL DE RELACIONES DEL TRABAJO La Ley Nacional de Relaciones del Trabajo (LNRT) garantiza el derecho de los empleados a organizarse y negociar colectivamente empleadores y sindicatos. En este Aviso encontrará información general sobre sus derechos y las obligaciones

447

REGLAMENTO RELATIVO A LOS DERECHOS DE PROPIEDAD INTELECTUAL E INDUSTRIAL DE LA UNIVERSIDAD DE CONCEPCION.  

E-print Network

REGLAMENTO RELATIVO A LOS DERECHOS DE PROPIEDAD INTELECTUAL E INDUSTRIAL DE LA UNIVERSIDAD DE Concepción. II.- DE LOS DERECHOS DE PROPIEDAD INTELECTUAL EN GENERAL.- ARTICULO 2. La Universidad de derechos de propiedad intelectual sobre las creaciones de sus funcionarios, contratados en una relación

Pérez, Carlos E.

448

77 FR 3257 - Transfer of Land Tracts Located at Los Alamos National Laboratory, New Mexico  

Federal Register 2010, 2011, 2012, 2013

...National Laboratory, Los Alamos and Santa Fe Counties, New Mexico, DOE/EIS-0293...miles (40 kilometers) northwest of Santa Fe. The small communities of Los Alamos townsite...ROD for the Conveyance and Transfer EIS (65 FR 14952, March 20, 2000), DOE's...

2012-01-23

449

Adaptation of an Animal Territory Model to Street Gang Spatial Patterns in Los Angeles  

E-print Network

Adaptation of an Animal Territory Model to Street Gang Spatial Patterns in Los Angeles Laura M Territorial animals and street gangs exhibit similar behavioral characteristics. Both organize themselves this approach to simulate gang dynamics in the Hollenbeck policing division of eastern Los Angeles. We

Soatto, Stefano

450

BLACK THUNDER COAL MINE AND LOS ALAMOS NATIONAL LABORATORY EXPERIMENTAL STUDY  

E-print Network

BLACK THUNDER COAL MINE AND LOS ALAMOS NATIONAL LABORATORY EXPERIMENTAL STUDY OF SEISMIC ENERGY GENERATED BY LARGE SCALE MINE BLASTING Robert L. Martin David Gross D. Craig Pearson Brian W. Stump David P of Explosive Engineers, 2-5 Feb 97, Las Vegas, NV #12;BLACK THUNDER COAL MINE AND LOS ALAMOS NATIONAL

451

El debate en torno a la utilidad de los códigos deontológicos del periodismo1  

Microsoft Academic Search

Resumen Los códigos deontológicos del periodismo, que constituyen el mecanismo de autocontrol más común y extendido, están de plena actualidad. Sin embargo sus defensores y detrac- tores casi se reparten por igual y a menudo el tema suscita opiniones encontradas. La dis- cusión sobre las ventajas y las limitaciones de los códigos contribuye a comprender y estimar adecuadamente la función

Hugo Aznar

452

------------Acquisition Services Management Division --------------Los Alamos National Laboratory (LANL) is managed and  

E-print Network

of Energy's NNSA and is located in Los Alamos, New Mexico. The Laboratory is one of the largest science and apply science and technology to Ensure the safety, security, and reliability of the U.S. nuclear Laboratory (LANL) is managed and operated by Los Alamos National Security, LLC (LANS) for the U.S. Department

453

Environmental assessment for the proposed CMR Building upgrades at the Los Alamos National Laboratory, Los Alamos, New Mexico. Final document  

SciTech Connect

In order to maintain its ability to continue to conduct uninterrupted radioactive and metallurgical research in a safe, secure, and environmentally sound manner, the US Department of Energy (DOE) proposes to upgrade the Los Alamos National Laboratory (LANL) Chemistry and Metallurgy Research (CMR) Building. The building was built in the early 1950s to provide a research and experimental facility for analytical chemistry, plutonium and uranium chemistry, and metallurgy. Today, research and development activities are performed involving nuclear materials. A variety of radioactive and chemical hazards are present. The CMR Building is nearing the end of its original design life and does not meet many of today`s design codes and standards. The Proposed Action for this Environmental Assessment (EA) includes structural modifications to some portions of the CMR Building which do not meet current seismic criteria for a Hazard Category 2 Facility. Also included are upgrades and improvements in building ventilation, communications, monitoring, and fire protection systems. This EA analyzes the environmental effects of construction of the proposed upgrades. The Proposed Action will have no adverse effects upon agricultural and cultural resources, wetlands and floodplains, endangered and threatened species, recreational resources, or water resources. The Proposed Action would have negligible effects on human health and transportation, and would not pose a disproportionate adverse health or environmental impact on minority or low-income populations within an 80 kilometer (50 mile) radius of the CMR Building.

NONE

1997-02-04

454

Initial performance of Los Alamos Advanced Free Electron Laser  

SciTech Connect

We report recent results on the high-brightness electron linac and initial performance of the Advanced FEL at Los Alamos. The design and construction of the Advanced FEL beamline are based upon integration of advanced technologies such as high-brightness photoinjector, high-gradient compact linac, and permanent-magnet beamline components. With the use of microwiggler, both permanent magnet and pulsed electromagnet, and compact optical resonator, the Advanced FEL will be the first of its kind small enough to be mounted on an optical table and yet capable of providing highpower optical output spanning the near-ir and visible regions. A schematic of the Advanced FEL is shown in. The source of high-current electron pulses is a laser-gated photoelectron injector which forms-an integral part of a high-gradient 1.2-m long rf linear accelerator. The latter is capable of accelerating electrons up to 20 MeV with room temperature operation and 25 MeV at 77K. The electrons are produced in 10-ps pulses with peak currents as high as 300 A. These electron pulses are transported in a brightness-preserving beamline consisting of permanent magnet dipoles and quadrupoles. The beamline has three 30{degrees} bends. The first bend allows for the photocathode drive laser input; the second allows for the FEL output and the third turns the electron beam into the floor for safety reasons. Additional information on the design physics of the Advanced FEL can be found elsewhere.

Nguyen, D.C.; Baca, D.M.; Chan, K.C.D.; Cheairs, R.B.; Fortgang, C.M.; Gierman, S.M.; Johnson, W.J.D.; Holcomb, D.E.; Kinross-Wright, J.; McCann, S.W.; Meier, K.L.; Plato, J.G.; Sheffield, R.L.; Sherwood, B.A.; Sigler, F.E.; Timmer, C.A.; Warren, R.W.; Weber, M.E.; Wilson, W.L.

1992-09-01

455

Initial performance of Los Alamos Advanced Free Electron Laser  

SciTech Connect

We report recent results on the high-brightness electron linac and initial performance of the Advanced FEL at Los Alamos. The design and construction of the Advanced FEL beamline are based upon integration of advanced technologies such as high-brightness photoinjector, high-gradient compact linac, and permanent-magnet beamline components. With the use of microwiggler, both permanent magnet and pulsed electromagnet, and compact optical resonator, the Advanced FEL will be the first of its kind small enough to be mounted on an optical table and yet capable of providing highpower optical output spanning the near-ir and visible regions. A schematic of the Advanced FEL is shown in. The source of high-current electron pulses is a laser-gated photoelectron injector which forms-an integral part of a high-gradient 1.2-m long rf linear accelerator. The latter is capable of accelerating electrons up to 20 MeV with room temperature operation and 25 MeV at 77K. The electrons are produced in 10-ps pulses with peak currents as high as 300 A. These electron pulses are transported in a brightness-preserving beamline consisting of permanent magnet dipoles and quadrupoles. The beamline has three 30{degrees} bends. The first bend allows for the photocathode drive laser input; the second allows for the FEL output and the third turns the electron beam into the floor for safety reasons. Additional information on the design physics of the Advanced FEL can be found elsewhere.

Nguyen, D.C.; Baca, D.M.; Chan, K.C.D.; Cheairs, R.B.; Fortgang, C.M.; Gierman, S.M.; Johnson, W.J.D.; Holcomb, D.E.; Kinross-Wright, J.; McCann, S.W.; Meier, K.L.; Plato, J.G.; Sheffield, R.L.; Sherwood, B.A.; Sigler, F.E.; Timmer, C.A.; Warren, R.W.; Weber, M.E.; Wilson, W.L.

1992-01-01

456

ZERT Final Scientific Report Los Alamos National Laboratory  

SciTech Connect

Los Alamos National Laboratory's (LANL) activities for the Center for Zero Emission Research and Technology (ZERT) have fallen into three broad research areas: (1) How do you reduce uncertainty in assuring prior to operation that an engineered geologic site will meet a specific performance goal (e.g., <0.01% leak per year)? (2) What are key monitoring needs for verifying that an engineered geologic site is meeting a performance goal? (3) What are potential vulnerabilities for breeches in containment of CO{sub 2}, and how could they be mitigated either prior to operation or in the event that a threshold is exceeded? We have utilized LANL's multi-disciplinary expertise and an integrated approach combining laboratory experiments, field observations and numerical simulations to address various research issues related to above-mentioned areas. While there have been a number of major milestones achieved as described in past quarterly reports, two of the major accomplishments resulting from LANL's efforts include: (1) Development of the CO{sub 2}-PENS systems framework for long-term performance analysis of geologic CO{sub 2} sequestration sites. CO{sub 2}-PENS is first-ever systems analysis tool designed for assessment of CO{sub 2} sequestration sites. (2) One of the few field studies to-date focused on understanding impact of CO{sub 2} leakage on shallow groundwater chemistry. Two major conclusions of the study are as follows: the impact of co-contaminants transported with deeper brine on shallow groundwater quality is likely to be much larger than that of the CO{sub 2} and CO{sub 2}-induced geochemical reactions and in certain geochemical environment the reactivity of pure CO{sub 2} will not be sufficient to mobilize metals beyond background levels.

Pawar, Rajesh J. [Los Alamos National Laboratory

2011-01-01

457

Review of the SIN and Los Alamos Pion Trials.  

PubMed

Negative pi mesons (pions) were used to treat 227 patients at the Los Alamos Meson Production Facility (LAMPF) between 1974 and 1981. Persisting local control values for 129 patients treated with pions alone in the following tumor sites were recorded at a minimum post-treatment observation interval of 2.5 years in the following tumor sites: cerebral gliomas 3/29; head and neck, 8/31; lung, 1/7; pancreas, 0/17; large bowel, 3/13; cervix, 2/45; bladder, 3/4; prostate, 18/20; miscellaneous sites, 0/4. Late severe sequelae ranged from none to 30% for major sites. A dose-response relationship was seen for late severe sequelae with a high probability following dose levels of 4750 cGy (max) in approximately 38 fractions. RBE values for pions appeared to lie in the range of 1.4-1.6 for both acute normal tissue reactions and late sequelae. At the Swiss Institute for Nuclear Research (SIN), 126 patients were treated in Phase I-II protocol studies between 1982 and 1984 with a new technique of scanning with a focused spot of pions. With minimum observation intervals of only 6 months, the local complete response values in 67 evaluable patients treated with pions alone to selected sites are gliomas 1/15 (9 months); pancreas, 3/11; cervix, 4/8; bladder, 18/26 (at 1 year, 9/22); sarcomas, 4/5; biliary tract, 3/4. Late severe sequelae ranged from none to 50% for major sites. A steep dose-response relationship is seen for late severe sequelae with high probability following doses exceeding 3800 cGy (max) in 20 fractions and very low probability with doses below 3500 cGy (max). PMID:3937174

Schmitt, G; von Essen, C F; Greiner, R; Blattmann, H

1985-01-01

458

Energy recovery from biosolids: The City of Los Angeles experience  

SciTech Connect

The City of Los Angeles` Hyperion Treatment Plant serves an area of 1,500 sq km (600 sq mi) with a contributory population of nearly 4 million. The plant currently produces more than 250 dry tonnes per day (dtpd) of digested, dewatered biosolids and is being expanded and upgraded to provide pure oxygen, full secondary treatment by 1998. The modern Hyperion Plant began operating in 1951. Since that time, Hyperion has provided anaerobic digestion for its biosolids and has used the produced biogas for power generation. In the 1980`s the City completed a major expansion of its power generation and biosolids handling facilities at Hyperion. These facilities became known as the Hyperion Energy Recovery System (HERS) and their objective is to maximize the recovery of energy from the renewable biosolids. Today, these facilities are operational and continue to be modified to optimize performance and expanded to meet the increased loadings from full secondary treatment. Biogas produced by the anaerobic digestion process is compressed, scrubbed to remove H{sub 2}S, and used to power a gas turbine, combined cycle cogeneration system. Emergency flares are provided in the event of a power plant outage. A portion of the biosolids are transported offsite for beneficial reuse, such as composting and direct land application. The remaining solids are centrifugally dewatered and dried by indirect rotary dryers to produce about 50 dtpd of dried biofuel. Biofuel produced from the drying processes is fired in a fluidized bed gasification and staged combustion process (FBC) designed to recover energy and reduce air emissions. Superheated steam is produced in a waste heat boiler and converted to electrical power is a condensing steam turbine. Bioash from the FBC`s is contracted for off-site reuse, primarily as a fluxing agent in copper smelting and as a source of silica, aluminum, iron and calcium for manufacture of portland cement.

Haug, R.T.; Moore, G.L. [Bureau of Engineering, Los Angeles, CA (United States); Harrison, D.S. [Montgomery Watson Americas, Inc., Pasadena, CA (United States)

1995-11-01

459

Ambient Air Pollution and Autism in Los Angeles County, California  

PubMed Central

Background: The prevalence of autistic disorder (AD), a serious developmental condition, has risen dramatically over the past two decades, but high-quality population-based research addressing etiology is limited. Objectives: We studied the influence of exposures to traffic-related air pollution during pregnancy on the development of autism using data from air monitoring stations and a land use regression (LUR) model to estimate exposures. Methods: Children of mothers who gave birth in Los Angeles, California, who were diagnosed with a primary AD diagnosis at 3–5 years of age during 1998–2009 were identified through the California Department of Developmental Services and linked to 1995–2006 California birth certificates. For 7,603 children with autism and 10 controls per case matched by sex, birth year, and minimum gestational age, birth addresses were mapped and linked to the nearest air monitoring station and a LUR model. We used conditional logistic regression, adjusting for maternal and perinatal characteristics including indicators of SES. Results: Per interquartile range (IQR) increase, we estimated a 12–15% relative increase in odds of autism for ozone [odds ratio (OR) = 1.12, 95% CI: 1.06, 1.19; per 11.54-ppb increase] and particulate matter ? 2.5 µm (OR = 1.15; 95% CI: 1.06, 1.24; per 4.68-?g/m3 increase) when mutually adjusting for both pollutants. Furthermore, we estimated 3–9% relative increases in odds per IQR increase for LUR-based nitric oxide and nitrogen dioxide exposure estimates. LUR-based associations were strongest for children of mothers with less than a high school education. Conclusion: Measured and estimated exposures from ambient pollutant monitors and LUR model suggest associations between autism and prenatal air pollution exposure, mostly related to traffic sources. PMID:23249813

Becerra, Tracy Ann; Wilhelm, Michelle; Olsen, Jørn; Cockburn, Myles

2012-01-01

460

2011 Los Alamos National Laboratory Riparian Inventory Results  

SciTech Connect

A total length of 36.7 kilometers of riparian habitat were inventoried within LANL boundaries between 2007 and 2011. The following canyons and lengths of riparian habitat were surveyed and inventoried between 2007 and 2011. Water Canyon (9,669 m), Los Alamos Canyon (7,131 m), Pajarito Canyon (6,009 m), Mortandad Canyon (3,110 m), Two-Mile Canyon (2,680 m), Sandia Canyon (2,181 m), Three-Mile Canyon (1,883 m), Canyon de Valle (1,835 m), Ancho Canyon (1,143 m), Canada del Buey (700 m), Sandia Canyon (221 m), DP Canyon (159 m) and Chaquehui Canyon (50 m). Effluent Canyon, Fence Canyon and Potrillo Canyon were surveyed but no areas of riparian habitat were found. Stretches of inventoried riparian habitat were classified for prioritization of treatment, if any was recommended. High priority sites included stretches of Mortandad Canyon, LA Canyon, Pajarito Canyon, Two-Mile Canyon, Sandia Canyon and Water Canyon. Recommended treatment for high priority sites includes placement of objects into the stream channel to encourage sediment deposition, elimination of channel incision, and to expand and slow water flow across the floodplain. Additional stretches were classified as lower priority, and, for other sites it was recommended that feral cattle and exotic plants be removed to aid in riparian habitat recovery. In June 2011 the Las Conchas Wildfire burned over 150,000 acres of land in the Jemez Mountains and surrounding areas. The watersheds above LA Canyon, Water Canyon and Pajarito Canyon were burned in the Las Conchas Wildfire and flooding and habitat alteration were observed in these canyon bottoms (Wright 2011). Post fire status of lower priority areas may change to higher priority for some of the sites surveyed prior to the Las Conchas Wildfire, due to changes in vegetation cover in the adjacent upland watershed.

Norris, Elizabeth J. [Los Alamos National Laboratory; Hansen, Leslie A. [Los Alamos National Laboratory; Hathcock, Charles D. [Los Alamos National Laboratory; Keller, David C. [Los Alamos National Laboratory; Zemlick, Catherine M. [Los Alamos National Laboratory

2012-03-29

461

Los Alamos National Laboratory W76 Pit Tube Lifetime Study  

SciTech Connect

A metallurgical study was requested as part of the Los Alamos National Laboratory (LANL) W76-1 life-extension program (LEP) involving a lifetime analysis of type 304 stainless steel pit tubes subject to repeat bending loads during assembly and disassembly operations at BWXT/Pantex. This initial test phase was completed during the calendar years of 2004-2006 and the report not issued until additional recommended tests could be performed. These tests have not been funded to this date and therefore this report is considered final. Tubes were reportedly fabricated according to Rocky Flats specification P14548 - Seamless Type 304 VIM/VAR Stainless Steel Tubing. Tube diameter was specified as 0.125 inches and wall thickness as 0.028 inches. A heat treat condition is not specified and the hardness range specification can be characteristic of both 1/8 and 1/4 hard conditions. Properties of all tubes tested were within specification. Metallographic analysis could not conclusively determine a specified limit to number of bends allowable. A statistical analysis suggests a range of 5-7 bends with a 99.95% confidence limit. See the 'Statistical Analysis' section of this report. The initial phase of this study involved two separate sets of test specimens. The first group was part of an investigation originating in the ESA-GTS [now Gas Transfer Systems (W-7) Group]. After the bend cycle test parameters were chosen (all three required bends subjected to the same amount of bend cycles) and the tubes bent, the investigation was transferred to Terri Abeln (Metallurgical Science and Engineering) for analysis. Subsequently, another limited quantity of tubes became available for testing and were cycled with the same bending fixture, but with different test parameters determined by T. Abeln.

Abeln, Terri G. [Los Alamos National Laboratory

2012-04-25

462

Transformando la Representación de los Datos para Mejorar el Clasificador Bayesiano Simple  

E-print Network

Abstract. El clasificador bayesiano simple se basa en la asunción de independencia entre los valores de los atributos dado el valor de la clase. Así pues, su efectividad puede decrecer en presencia de atributos interdependientes. En este artículo se presenta DGW (Dependency Guided Wrapper), un wrapper que utiliza la información acerca de las dependencias entre atributos para transformar la representación de los datos para mejorar la precisión del clasificador bayesiano simple. Este artículo presenta una serie de experimentos donde se compara las representaciones de datos obtenidas por el DGW contra las representaciones de datos obtenidas por 12 acercamientos previos, como son la construcción inductiva de productos cartesianos de atributos, y wrappers que realizan búsquedas de subconjuntos óptimos de atributos. Los resultados de los experimentos muestran que DGW genera representaciones nuevas de los datos que ayudan a mejorar significativamente la precisión del clasificador bayesiano simple más frecuentemente que cualquier otro acercamiento previo. Además, DGW es mucho más rápido que cualquier otro sistema en el proceso de transformación de la representación de los datos.

Jose Carlos Cortizo; Ignacio Giraldez; Mari Cruz Gaya; Selección De Atributos

463

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

464

Natural Vertical Flow in the Los Azufres, Mexico, Geothermal Reservoir  

SciTech Connect

This work focuses on estimating the mass (M) and energy (E) flow rates, the permeability k, and the relative permeability functions R{sub L} and R{sub V} associated with the natural vertical flow in the reservoir. To estimate M and E we used the standard 1-D vertical equations for two-phase flow, complemented with boundary conditions at the boiling and dew interfaces. These boundary conditions were derived in an earlier stage of this study that established an approximate 1-D vertical model of the reservoir. The estimated values of M and E were then used together with the previously established liquid saturation vertical profile of the reservoir, and the differential equation expressing the pressure gradient, to fit, by trial and error, the observed natural pressure profile. The accuracy of the fit depends on the assumed value for the vertical permeability and on the chosen forms for the relative permeability functions. They estimated M {approx} 6.9 x 10{sup -8} kg m{sup -2} s{sup -1} and E {approx} 0.2 W m{sup -2}. These results lie well within the ample ranges of mass and energy flowrates per unit area found in geothermal fields worldwide. The estimated values of M and E support the previous inference that there is an extensive caprock in the reservoir. The best fit to the natural pressure gradient implies a vertical permeability of about 0.08 mD, residual water- and steam-saturations of about 0.04 and 0.00 respectively, and ''fracture relative permeabilities'' (i.e., R{sub L} + R{sub V} = 1). This work addresses a major obstacle for a successful analysis of the Los Azufres geothermal reservoir, which is characterized by an extensive two-phase region: the former unavailability of reasonably reliable relative permeability functions. Furthermore, the present characterization of the vertical natural flow provides important constraints for both lumped- and distributed-parameter models of the reservoir. Finally, this work gives information on reservoir properties that would be difficult to obtain by other means.

Iglesias, E.R.; Arellano, V.M.; Ortiz-Ramirez, J.

1986-01-21

465

La instrumentación de la política regional española en la última década: el papel de los incentivos económicos a la inversión y al empleo  

Microsoft Academic Search

RESUMEN Los incentivos a la inversión y al empleo siguen constituyendo uno de los instrumentos básicos de la Política Regional en los países de la Unión Europea, a pesar de las exigencias que marca la transición a una economía basada en el conocimiento, contexto en el que las empresas y los países no sólo compiten por los recursos financieros, sino

Pedro Benito Moyano Pesquera; Olga Ogando Canabal

2003-01-01

466

Medical Records in the Greater Los Angeles State Veterans Home: A Unique Opportunity to Improve Quality of Care  

E-print Network

Office Director of Applications Management Senior Information SystemsOffice, Washington, DC Chief of Information Resources Greater Los Angeles Management Healthcare System,Office of Asset Management of the Greater Los Angeles Veterans Affairs Health Care System.

Allison Townsend; Galena Kolchugina

2006-01-01

467

77 FR 54605 - Longworth Low-Effect Habitat Conservation Plan for the Morro Shoulderband Snail, Community of Los...  

Federal Register 2010, 2011, 2012, 2013

...Community of Los Osos, San Luis Obispo County...incidental take permit under the Endangered...community of Los Osos, San Luis Obispo County...unincorporated community of San Luis Obispo County...are requesting a permit for take of...

2012-09-05

468

78 FR 12346 - Jennings Low-Effect Habitat Conservation Plan for the Morro Shoulderband Snail, Community of Los...  

Federal Register 2010, 2011, 2012, 2013

...Community of Los Osos, San Luis Obispo County...incidental take permit under the Endangered...community of Los Osos, San Luis Obispo County...unincorporated community of San Luis Obispo County...is requesting a permit for take of...

2013-02-22

469

Culture in concrete : art and the re-imagination of the Los Angeles River as civic space  

E-print Network

The Los Angeles River is the common physical, social, and cultural thread that connects many of Los Angeles' most diverse and under-represented communities, the majority of which comprise its downstream corridor. It is a ...

Arroyo, John C. (John Christopher)

2010-01-01

470

76 FR 414 - Tier 1 Environmental Impact Statement for the Los Angeles to San Luis Obispo (LOSSAN North) Rail...  

Federal Register 2010, 2011, 2012, 2013

...Angeles to San Luis Obispo (LOSSAN North) Rail Corridor Improvements Studies: Los Angeles...environmental impact report (EIR) for rail corridor improvements to the Los Angeles to San Luis Obispo (LOSSAN North) rail corridor (LOSSAN North Program)....

2011-01-04

471

Los Alamos National Laboratory: 21st century solutions to urgent national challenges  

SciTech Connect

Los Alamos National Laboratory has been called upon to meet urgent national challenges for more than 65 years. The people, tools, and technologies at Los Alamos are a world class resource that has proved decisive through our history, and are needed in the future. We offer expertise in nearly every science, technology, and engineering discipline, a unique integrated capability for large-scale computing and experimentation, and the proven ability to deliver solutions involving the most complex and difficult technical systems. This white paper outlines some emerging challenges and why the nation needs Los Alamos, the premier National Security Science Laboratory, to meet these challenges.

Mcbranch, Duncan [Los Alamos National Laboratory

2008-01-01

472

Protegiendo a su familia de los terremotos-Los siete pasos a la seguridad para prepararse en caso de un terremoto (en espa?ol y en ingles)  

USGS Publications Warehouse

Les escribimos esta carta para comunicarle un mensaje sumamente importante sobre las preparaciones de emergencia. Historicamente, hemos sufrido terremotos aqui en el Area de la Bahia de San Francisco que han causado graves privaciones para los residentes de la comunidad y da?os increibles a nuestras ciudades. Es probable que suframos un terremoto de gran magnitud en los proximos 30 a?os. Muchos de nosotros venimos de otros paises donde hemos pasado por terremotos y por eso creemos entenderlos. Sin embargo, la manera que nos preparamos para terremotos en nuestros paises de origen puede ser distinta a la que empleamos aca en los Estados Unidos. Muy pocas personas mueren a causa de los derrumbes de los edificios en el Area de la Bahia porque la mayoria de los edificios son construidos para resistir el sacudimiento de la tierra. Pero es muy probable que su familia no tenga atencion medica, alimentos o que esten separados del uno al otro por dias o semanas. Finalmente depende de usted mantener a su familia a salvo hasta que llegue asistencia, por eso les pedimos que nos unamos para aprender a cuidar a su familia antes, durante, y despues de un terremoto. El primer paso es leer este libro. Cada uno de su familia, ni?os y adultos, pueden aprender como prepararse para un terremoto. Haga participar e incluya sus ni?os; pueden ayudarle a prepararse. Aproveche las clases ofrecidas en su comunidad sobre las preparaciones de terremotos por la Cruz Roja Estadounidense (American Red Cross). Estos cursos de preparacion son gratis y disponibles en espa?ol para todos en la comunidad sin tomar en cuenta la historia de la familia, estado legal, genero o edad. Les recomendamos que tome ventaja de estas clases gratuitas. Para mas informacion consulte la ultima pagina de este libro. Recuerde que un terremoto puede ocurrir sin aviso y la unica manera de reducir el da?o de terremotos es estar preparados. !Preparese!

Desarrollado por American Red Cross, Asian Pacific Fund, California Earthquake Authority, Governor's Office of Emergency Services, New America Media, U.S. Department of Homeland Security Federal Emergency Management Agency, and U.S. Geological Survey

2007-01-01

473

Dinámica y crecimiento de los granos de polvo en la nebulosa protoplanetaria  

NASA Astrophysics Data System (ADS)

En el escenario estándar de la formación planetaria, los planetesimales (cuerpos de tamaño kilométrico) crecen a partir de granos de polvo, similares a los interestelares, embebidos en un disco gaseoso denominado nebulosa protoplanetaria. Durante esta etapa, los movimientos del gas pueden tener gran influencia en la dinámica y el crecimiento de los granos de polvo, dado que el flujo kepleriano del gas frena el movimiento de los mismos haciendo que caigan hacia el Sol, y la turbulencia inhibe la inestabilidad gravitacional de la capa de polvo. Aunque se acepta que los planetesimales fueron los elementos constituyentes de los planetas, todavía se desconoce cómo se produjo la formación de los mismos. Por esta razón, en los estudios más recientes, existe un renovado interés por comprender mejor la evolución de la capa de polvo inmersa en el disco gaseoso de la Nebulosa. El gas que fluye en el disco puede engendrar estructuras carentes de simetría axial, como por ejemplo ondas espirales y vórtices, a partir de gran variedad de mecanismos de excitación e inestabilidad. En 1995, Barge y Sommeria pusieron de manifiesto que la existencia de vórtices gaseosos persistentes en la nebulosa solar tendría importantes consecuencias sobre la formación de los planetesimales y el posterior crecimiento de los planetas gigantes. La investigación desarrollada en esta Tesis analiza la relación entre el polvo y el gas debida al acoplamiento por fricción dinámica entre ambos; en concreto, se estudia el efecto del flujo medio del gas sobre la dinámica de las partículas de polvo. El primer objetivo es investigar en profundidad los procesos de captura y crecimiento de los granos de polvo dentro de un vórtice y su posible relevancia en cuanto a la formación de los planetesimales. El segundo objetivo es la exploración de los efectos de ondas espirales propagándose en el disco gaseoso sobre la dinámica y el crecimiento de las partículas. La presencia de líneas de corriente no circulares perturba significativamente el movimiento de las partículas alrededor del Sol e incrementa su vida media en la Nebulosa. El flujo medio del gas se modela de forma simple, analizándose la dinámica y el crecimiento de las partículas mediante simulaciones numéricas. Al incrementarse la vida media y la densidad superficial de las partículas sólidas, los mecanismos de confinamiento derivados de la presencia de vórtices y ondas espirales actuan sobre el material sólido de la Nebulosa (mediante agregación colisional o inestabilidades gravitacionales) de manera mucho más eficiente que la previamente considerada. Esto ofrece nuevas posibilidades para la formación de planetesimales y núcleos de planetas gigantes, y puede explicar la formación rápida de planetas extrasolares gigantes. Además, esta Tesis analiza la respuesta de las partículas, en un disco protoplanetario con un radio de 100 UA en torno a una estrella de tipo solar, al campo gravitatorio derivado de la presencia de dos estrellas compañeras ligadas en una órbita relativamente elongada (300-1600 UA). Para llevar a cabo este análisis, se han realizado una serie de simulaciones numéricas de configuraciones jerárquicas coplanares utilizando un programa FORTRAN que integra directamente las ecuaciones del movimiento con el objeto de modelar la presencia de las fuerzas gravitacionales y viscosas. El disco protoplanetario masivo se encuentra en torno a una de las componentes de la binaria. La evolución temporal del subdisco de polvo depende directamente de la naturaleza (directa o retrógrada) de la revolución relativa de la compañera estelar, y de la temperatura y la masa del disco circunestelar.

de La Fuente Marcos, Carlos

2001-06-01

474

INSTANTANEOUS FREQUENCY VERSUS TIME FOR 7 BUILDINGS B.0466 Los Angeles, 15250 Ventura Blvd., Roof (13th floor) (pp. 7)  

E-print Network

of the 1994 Northridge earthquake at station USGS 466 (Los Angeles, 15250 Ventura Blvd.). Left: Fourier00E of the record of the 1994 Northridge earthquake aftershock -1 at station USGS 466 (Los AngelesAPPENDIX B INSTANTANEOUS FREQUENCY VERSUS TIME FOR 7 BUILDINGS B.0466 Los Angeles, 15250 Ventura

Southern California, University of

475

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

476

33 CFR 167.500 - In the approaches to Los Angeles-Long Beach Traffic Separation Scheme: General.  

...In the approaches to Los Angeles-Long Beach Traffic Separation Scheme: General...In the approaches to Los Angeles-Long Beach Traffic Separation Scheme: General...in the approaches to Los Angeles-Long Beach consists of three parts: a...

2014-07-01

477

33 CFR 167.500 - In the approaches to Los Angeles-Long Beach Traffic Separation Scheme: General.  

Code of Federal Regulations, 2013 CFR

...In the approaches to Los Angeles-Long Beach Traffic Separation Scheme: General...In the approaches to Los Angeles-Long Beach Traffic Separation Scheme: General...in the approaches to Los Angeles-Long Beach consists of three parts: a...

2013-07-01

478

33 CFR 167.500 - In the approaches to Los Angeles-Long Beach Traffic Separation Scheme: General.  

Code of Federal Regulations, 2010 CFR

...In the approaches to Los Angeles-Long Beach Traffic Separation Scheme: General...In the approaches to Los Angeles-Long Beach Traffic Separation Scheme: General...in the approaches to Los Angeles-Long Beach consists of three parts: a...

2010-07-01

479

33 CFR 167.500 - In the approaches to Los Angeles-Long Beach Traffic Separation Scheme: General.  

Code of Federal Regulations, 2012 CFR

...In the approaches to Los Angeles-Long Beach Traffic Separation Scheme: General...In the approaches to Los Angeles-Long Beach Traffic Separation Scheme: General...in the approaches to Los Angeles-Long Beach consists of three parts: a...

2012-07-01

480

33 CFR 167.500 - In the approaches to Los Angeles-Long Beach Traffic Separation Scheme: General.  

Code of Federal Regulations, 2011 CFR

...In the approaches to Los Angeles-Long Beach Traffic Separation Scheme: General...In the approaches to Los Angeles-Long Beach Traffic Separation Scheme: General...in the approaches to Los Angeles-Long Beach consists of three parts: a...

2011-07-01

481

PUESTA EN VALOR DE RECURSOS RURALES EN LOS PROGRAMAS DE INNOVACIÓN RURAL EN CASTILLA-LA MANCHA  

Microsoft Academic Search

El patrimonio histórico, cultural, arquitectónico y natural se ha convertido en uno de los elementos diferenciadores del turismo en España. Por este motivo, este segmento viene experimentando, en los últimos años, un importante crecimiento tanto desde el punto de vista de la oferta como de la demanda. Buena parte de este incremento viene motivado por las intervenciones de los programas

José Mondéjar Jiménez; Juan Antonio Mondéjar Jiménez; Manuel Vargas Vargas; María Leticia Meseguer Santamaría

2008-01-01

482

La efectividad de las redes de protección social: El rol de los sistemas integrados de información social en Brasil  

Microsoft Academic Search

Este trabajo forma parte de una serie de estudios realizados en el marco del proyecto “La efectividad de las redes de protección social: El rol de los sistemas integrados de información social”. Los estudios de caso fueron realizados en el período 2007-08. Se agradecen los comentarios de Amélia Cohn, Lúcia Maria Modesto Pereira y Paulo de Martino Jannuzzi. El texto

Leticia Bartholo; Ricardo Rodrigues Dutra

2011-01-01

483

insURGEnCiA Y REPREsiÓn. ACERCA DE LA TEORÍA DE LOs DOs DEMOniOs  

Microsoft Academic Search

Resumen: La conocida en Argentina como Teoría o tesis de los dos demonios se ha utilizado para, si no justificar, sí al menos querer dar una explica - ción simplista al advenimiento del golpe del gene- ral Videla y la consiguiente dictadura conocida en Argentina como el Proceso. El artículo analiza los discursos e imágenes sobre cada uno de los

José Manuel Barrio Terol

484

Más allá del “formato memoria”: la repostulación del imaginario postdictatorial en Los rubios de Albertina Carri  

E-print Network

Horror, trauma, duelo, luto, olvido, memoria, identidad; Los rubios activa, desde el mismo momento de su aparición, una serie de lecturas críticas que indagan, profundizan, complejizan y, casi podríamos decir, se regodean en estos conceptos. Y es...

Garibotto, Veró nica; Gó mez, Antonio

2006-01-01

485

UNIVERSITY OF CALIFORNIA, IRVINE BERKELEY DAVIS IRVINE LOS ANGELES MERCED RIVERSIDE SAN DIEGO SAN FRANCISCO  

E-print Network

UNIVERSITY OF CALIFORNIA, IRVINE BERKELEY DAVIS IRVINE LOS ANGELES MERCED RIVERSIDE SAN DIEGO Irvine, Ca 926972825 November 14, 2014 Dear California Undergraduate Student, You may have heard that UC Regents are considering raising tuition. We write to reassure you

Rose, Michael R.

486

REGIONAL MANAGEMENT OF AUTOMOTIVE EMISSIONS: THE EFFECTIVENESS OF ALTERNATIVE POLICIES FOR LOS ANGELES  

EPA Science Inventory

This study has two objectives: first, to develop procedures to evaluate policies for controlling automobile emissions; and second, to use these procedures to evaluate specific pollution control strategies for Los Angeles. The first objective is achieved by developing a relatively...

487

Shuttle Endeavour Flyover of Los Angeles Landmarks - Duration: 15:11.  

NASA Video Gallery

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

488

2 Los Alamos Science Number 24 1996 "SIDE-BY-SIDE  

E-print Network

scientists from Los Alamos and from Arzamas-16 (the birthplace of the Sovi- et atomic bomb, now called Sarov of the once secret atomic city of Arzamas-16 by leaders of VNIIEF, the All Russian (formerly All Union

489

Instantánea de los cánceres de hígado y de las vías biliares  

Cancer.gov

Información sobre las tendencias de incidencia, mortalidad y financiamiento del NCI sobre los cánceres de hígado y de las vías biliares; así como ejemplos de actividades del NCI y adelantos en la investigación de estos tipos de cáncer.

490

76 FR 48176 - Notice of Inventory Completion: Fowler Museum at UCLA, Los Angeles, CA  

Federal Register 2010, 2011, 2012, 2013

...Inventory Completion: Fowler Museum at UCLA, Los Angeles, CA AGENCY: National Park...SUMMARY: The Fowler Museum at UCLA has completed an inventory of human remains...remains may contact the Fowler Museum at UCLA. Repatriation of the human remains...

2011-08-08

491

Instantánea de los cánceres de cerebro y del sistema nervioso central  

Cancer.gov

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

492

Characterization of Habitat for Hawksbill Turtle (Eretmochelys imbricata) in Los Roques Archipelago National Park, Venezuela  

E-print Network

of marine phanerogams or flowering plants- one of the most important natural habitats for feeding, resting and reproduction activities of marine turtles (FCLR 2007, de los Llanos 2002, Vernet 2001). These areas are especially important for adult...

Hunt, Luciana E.

2010-10-12

493

Report of the LASREF (Los Alamos Spallation Radiation Effects Facility) Evaluation Committee  

SciTech Connect

The objective of this committee is to evaluate the appropriate role, both short-term and long-term, of the Los Alamos Spallation Radiation Effects Facility (LASREF) in the US Fusion Materials Program.

Doran, D.G.

1990-07-01

494

La mujer y el amor en El mismo mar de todos los veranos, de Esther Tusquets  

E-print Network

Franco. La tarvia regularizacion del status de la escritora espanola, despuds de aquel caos acaecido en Espana a tcdos los niveles camo consecuencia de la guerra civil, mantuvo la produccion literaria f~ en una posicion rezagada frente a la labor...

Reed, Linnette Fourquet

1985-01-01

495

Personalidad, psicopatología y rendimiento neuropsicológico de los consumidores rituales de ayahuasca.  

E-print Network

??La ayahuasca es una decocción psicoactiva de origen amazónico elaborada con plantas que contienen el agonista de los receptores serotoninérgicos 5-HT2A N,N-dimetiltriptamina (DMT) y alcaloides… (more)

Bouso Saiz, José Carlos

2012-01-01

496

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

Federal Register 2010, 2011, 2012, 2013

...address aircraft containment issues. The Class D proposal has been designed to address specific safety concerns involving large turbojet aircraft operations in Class E airspace adjacent to Los Angles International Airport. Currently, non- participating...

2011-11-10

497

DATOS EN LA WEB Los voluntarios publican sus observaciones diarias en el  

E-print Network

mediciones precisas y de alta calidad hechas por los observadores suplementan las redes existentes. También condiciones sociales, que están dispuestos a pasar algunos minutos al día para medir y reportar la

498

Los desafíos de tratar con las atmósferas: Entrada, Descenso y Aterrizaje - Duration: 0:30.  

NASA Video Gallery

Ya sea aterrizando en Marte o de regreso a la Tierra, uno de los mayores desafíos de cualquier misión es la entrada, descenso y aterrizaje. Solo piense -- una nave espacial que pasa volando a toda ...

499

NIH/PHS PI Signature Form University of California, Los Angeles  

E-print Network

NIH/PHS PI Signature Form University of California, Los Angeles This form complies. The PI named below certifies for the proposal/award entitled of the application. PI signature: ______________________ Date of signature: _________________ PI name (typed

Grether, Gregory

500

Los Alamos National Laboratory Science Education Programs. Quarterly progress report, April 1--June 30, 1995  

SciTech Connect

This report is quarterly progress report on the Los Alamos National Laboratory Science Education Programs. Included in the report are dicussions on teacher and faculty enhancement, curriculum improvement, student support, educational technology, and institutional improvement.

Gill, D.

1995-09-01