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1

UNIVERSIDAD TECNICA FEDERICO SANTA MARIA DEPARTAMENTO DE ELECTRICIDAD  

E-print Network

UNIVERSIDAD TECNICA FEDERICO SANTA MARIA DEPARTAMENTO DE ELECTRICIDAD PROGRAMACION DE LA GENERACION DEPARTAMENTO DE ELECTRICIDAD PROGRAMACION DE LA GENERACION DE CORTO PLAZO EN SISTEMAS HIDROTERMICOS USANDO

Catholic University of Chile (Universidad Católica de Chile)

2

UNIVERSIDADE TECNICA DE LISBOA INSTITUTO SUPERIOR TECNICO  

E-print Network

UNIVERSIDADE T´ECNICA DE LISBOA INSTITUTO SUPERIOR T´ECNICO eCT - Biblioteca de Com´ercio Electr´onico No contexto das ´areas de com´ercio electr´onico e sistemas de gest~ao de conte´udo (CMS), analisam-se v´arias extens~oes de com´ercio electr´onico para CMS, com o objectivo de identi- ficar as suas caracter

da Silva, Alberto Rodrigues

3

Las1 Is an Essential Nuclear Protein Involved in Cell Morphogenesis and Cell Surface Growth  

PubMed Central

Saccharomyces cerevisiae mutations that cause a requirement for SSD1-v for viability were isolated, yielding one new gene, LAS1, and three previously identified genes, SIT4, BCK1/SLK1, and SMP3. Three of these genes, LAS1, SIT4, and BCK1/SLK1, encode proteins that have roles in bud formation or morphogenesis. LAS1 is essential and loss of LAS1 function causes the cells to arrest as 80% unbudded cells and 20% large budded cells that accumulate many vesicles at the mother-daughter neck. Overexpression of LAS1 results in extra cell surface projections in the mother cell, alterations in actin and SPA2 localization, and the accumulation of electron-dense structures along the periphery of both the mother cell and the bud. The nuclear localization of LAS1 suggests a role of LAS1 for regulating bud formation and morphogenesis via the expression of components that function directly in these processes. PMID:8582632

Doseff, A. I.; Arndt, K. T.

1995-01-01

4

Faculty Activity Analysis in the Universidad Tecnica Del Estado Campuses.  

ERIC Educational Resources Information Center

An analysis of academic activities of college faculty at the eight campuses of Chile's Universidad Tecnica del Estado was conducted. Activities were grouped into seven categories: direct teaching, indirect teaching, research, community services, faculty development, academic administration, and other activities. Following the narrative…

Karadima, Oscar

5

Redes inalambricas y robotica movil: tecnicas geograficas  

Microsoft Academic Search

En los ´ ultimos anos ha surgido un creciente interes por los equipos multi-robot y las comunicaciones inalambricas. Varios robots pueden realizar un con- junto de tareas de forma mas eficiente que un solo robot, ademas de ofrecer nuevas posibilidades de uso mas alla de las capacidades de un robot en soli- tario. Es frecuentemente necesario o conveniente que los

Alejandro R. Mosteo Chagoyen; Jose L. Villarroel Salcedo

6

Strategic Planning for Institutions of Higher Education: A Content Analysis for the Universidad Tecnica del Estado Planning System.  

ERIC Educational Resources Information Center

Ten-year development plans of each of the eight campuses of the Universidad de Santiago de Chile, formerly called Universidad Tecnica del Estado, are evaluated, using content analysis. In addition to narrative descriptions, diagrams illustrate the features of each plan, which covers the period 1983-1993. Topics covered by the plans were grouped…

Karadima, Oscar

7

Departamento de Matematica, Universidad Tecnica Federico Santa Maria  

E-print Network

diferenciable excepto en el origen) en una funci´on g(r). Comprobar las siguientes f´ormulas: f(r cos , r sin ecuaci´on de Laplace en el disco de radio 1, con valores en la frontera f() = 10 cos2 . 9) (Ecuaci

Markina, Irina

8

76 FR 3678 - Board Meeting: February 16, 2011-Las Vegas, NV, the U.S. Nuclear Waste Technical Review Board...  

Federal Register 2010, 2011, 2012, 2013, 2014

...Nuclear Fuel and High-Level Radioactive Waste Pursuant to its authority under...nuclear fuel and high-level radioactive waste. The Board will consider technical...spent fuel and high-level radioactive waste over the last two...

2011-01-20

9

ANALISIS DE FATIGA DE LOS COMPONENTES DE UNA CENTRAL NUCLEAR POR EL METODO DE LAS FUNCIONES DE INFLUENCIA  

Microsoft Academic Search

In nuclear power plants, the fatigue in vessels and their associated components is caused by transients that occur at normal operating temperatures. Fatigue analysis validity must be continuously reviewed during the design period of the components. Fatigue accumulation due to in plant events produces the degradation of the vessel components. This is the cause that everyday is more under consideration

R. Cicero; I. Gorrochategui; J. A. Alvarez

10

Annual Conference on Nuclear and Space Radiation Effects, 19th, Las Vegas, NV, July 20-22, 1982, Proceedings  

NASA Technical Reports Server (NTRS)

The results of research concerning the effects of nuclear and space radiation are presented. Topics discussed include the basic mechanisms of nuclear and space radiation effects, radiation effects in devices, and radiation effects in microcircuits, including studies of radiation-induced paramagnetic defects in MOS structures, silicon solar cell damage from electrical overstress, radiation-induced charge dynamics in dielectrics, and the enhanced radiation effects on submicron narrow-channel NMOS. Also examined are topics in SGEMP/IEMP phenomena, hardness assurance and testing, energy deposition, desometry, and radiation transport, and single event phenomena. Among others, studies are presented concerning the limits to hardening electronic boxes to IEMP coupling, transient radiation screening of silicon devices using backside laser irradiation, the damage equivalence of electrons, protons, and gamma rays in MOS devices, and the single event upset sensitivity of low power Schottky devices.

Long, D. M.

1982-01-01

11

Las Vegas  

NASA Technical Reports Server (NTRS)

This image of Las Vegas, NV was acquired on August, 2000 and covers an area 42 km (25 miles) wide and 30 km (18 miles) long. The image displays three bands of the reflected visible and infrared wavelength region, with a spatial resolution of 15 m. McCarran International Airport to the south and Nellis Air Force Base to the NE are the two major airports visible. Golf courses appear as bright red areas of worms. The first settlement in Las Vegas (which is Spanish for The Meadows) was recorded back in the early 1850s when the Mormon church, headed by Brigham Young, sent a mission of 30 men to construct a fort and teach agriculture to the Indians. Las Vegas became a city in 1905 when the railroad announced this city was to be a major division point. Prior to legalized gambling in 1931, Las Vegas was developing as an agricultural area. Las Vegas' fame as a resort area became prominent after World War II. The image is located at 36.1 degrees north latitude and 115.1 degrees west longitude.

The U.S. science team is located at NASA's Jet Propulsion Laboratory, Pasadena, Calif. The Terra mission is part of NASA's Science Mission Directorate.

2001-01-01

12

Nuclear  

NSDL National Science Digital Library

What part does nuclear energy play in satisfying energy demands? This informational piece, part of a series about the future of energy, introduces students to the uranium atom as an energy source. Here students read about the history of nuclear energy, how energy is derived from uranium, and benefits of nuclear energy. Information is also provided about limitations, particularly disposal problems and radioactivity, and geographical considerations of nuclear power in the United States. Thought-provoking questions afford students chances to reflect on what they've read about the uses of nuclear power. Articles and information on new nuclear plant design and nuclear accidents are available from a sidebar. Five energy-related PBS NewsHour links are provided. A web link to the U.S. Nuclear Regulatory Commission is included. Copyright 2005 Eisenhower National Clearinghouse

Iowa Public Television. Explore More Project

2004-01-01

13

EVALUACION DE TECNICAS BASADAS EN CONOCIMIENTO PARA EL DISEO DE CONTROLES DE EXCITACION EN  

E-print Network

que han alcanzado los sistemas eléctricos de potencia, debido al aumento de interconexiones, al uso de (Anderson y Fouad, 1993; Kundur, 1994). En las últimas dos décadas se ha desarrollado un número considerable utilizando las teorías de control óptimo en H y control proyectivo subóptimo (Morales, 1993). En todos los

Catholic University of Chile (Universidad Católica de Chile)

14

ESCUELA TECNICA SUPERIOR DE INGENIEROS DE TELECOMUNICACI ON PROYECTO FIN DE CARRERA  

E-print Network

tecnolog´ia microstrip utilizados en sat´elites espaciales. Las altos costes computacionales de los m´etodos sistemas de ecuaciones que en ´el aparecen. De es- ta forma el tiempo de ejecuci´on se reduce de forma

Giménez, Domingo

15

Aplicacion de PCA y tecnicas bayesianas a la clasificacion de pixeles basada en color  

E-print Network

patrones de las clases de un clasificador bayesiano. El m´etodo se ilustra a trav´es de varios experimentos´agenes y tiene m´ultiples aplicaciones en campos como la detecci´on de defectos de fabricaci´on en procesos la secci´on V se comentar´an varios experimentos realizados y finalmente en la secci´on VI se ver

Granada, Universidad de

16

Estudiar las redes sociales: Aportes y perspectivas para las  

E-print Network

Estudiar las redes sociales: Aportes y perspectivas para las ciencias sociales Claire Bidart LEST muchas razones en interesarse en las redes socia- les. Estos sistemas relacionales construyen lazos entre estructuracio- nes, sus dinámicas. Transversales a los grupos y a las estructuras sociales glo- bales, las redes

Paris-Sud XI, Université de

17

Las Vegas: An Unconventional History  

NSDL National Science Digital Library

As part of the PBS series American Experience, this well-designed siteexplores the history and idiosyncrasies of Las Vegas. The film, andaccompanying book, which the web site is based on will both be availablethis fall (the film airs in November on PBS), and the site certainlywhets viewers appetites for both. A nice range of information iscovered on the site which includes everything from information aboutNevada's nuclear testing in the fifties, to Rat Pack reminiscences and ofcourse, wedding photos. If you'd like to share your own Vegas weddingtale there is an interactive portion of the site dedicated to the topic.Packed with time lines, a teacher's guide, maps and much more this site(and film and book by the same name) are worthy of attention.

2005-01-01

18

Las Posadas on Television  

E-print Network

of the piece takes the work far beyond the exploratory scenes which toured as a germinal work-in-progress in 1975. Diablos and calaveras in the popular tradition of El Teatro inhabit this piece, but there are also earthy portrayals of men, women, workers... the Midwest and the East from March 15 through May. Las Posadas on Television The Center for the Hispanic Performing Arts at the University of Colorado (Boulder) sponsored a special television production of the traditional Christmas pageant, Las Posadas...

1976-04-01

19

Las Vegas Strip History  

NSDL National Science Digital Library

Created by amateur cultural historian Deanna DeMatteo, this site offers "the most detailed history of the Las Vegas Strip on the Internet today," showing in words and graphics the evolution of the properties on the Strip from its beginning to the present. Drawing on materials provided by publications, professional Las Vegas historians, and the Nevada State Museum and Historical Society, DeMatteo offers a detailed, noncommercial history with plenty of photographs (many archival) of the strip from the first night club in 1930 named Pair O Dice to the first true casino hotel, El Rancho with 63 rooms in 1941, to Hilton's giant Paris Las Vegas opening earlier this Fall with 2,914 rooms. There is also a special topics section, covering people significant in the strip's development, such as Warren "Doc" Bayley and Howard Hughes. Launched in August, the Website is continually updated with new material. Note: to reach table of contents, click on the photograph at end of the homepage.

DeMatteo, Deanna.

20

History: Las Vegas  

NSDL National Science Digital Library

Las Vegas (or "The Meadows" in Spanish) is a curious place, and it is not much of a stretch to say that it was transformed from a sleepy railroad town into a ring-a-ding swinging town in just a few decades during the 20th century. The Las Vegas Sun has gone above and beyond the call of duty by crafting a site that presents a multimedia-rich experience that narrates the history of this rather unique American city. Visitors should start their journey here by watching one or all eleven parts of their "Boomtown" video on the history of the town. Then visitors may want to take a look at the interactive map of the "Strip", which tells the fortunes of casinos and other buildings, past, present, and future, which have graced this notable region of mega-structures amidst the desert. After that, visitors should look at the "12 Voices from the Past" area. Voices like casino owner Benny Binion and former Nevada governor Mike O'Callaghan are featured here, and it's a great trip back through the city's varied past.

21

The Las Campanas Redshift Survey  

Microsoft Academic Search

The Las Campanas Redshift Survey has sampled 26400 galaxies, with an average redshift z = 0.1, in six 1.5 deg × 80 deg slices in the North and South galactic caps. The combination of the survey's large sample size, volume, and depth argues that the Las Campanas Survey may currently represent the best chance for a fair sample of the

Huan Lin; Stephen D. Landy; Augustus Oemler; Douglas L. Tucker; Robert P. Kirshner; Paul L. Schechter

1996-01-01

22

EMPACT: THE LAS VEGAS INTERAGENCY PILOT PROGRAM  

EPA Science Inventory

ENPACT: The Las Vegas Interagency Pilot Project The Las Vegas Interagency Pilot Project of the EMPACT program has involved eleven efforts. These efforts are described in brief on the poster presentation. They include: Las Vegas Environmental Monitoring Inventory, the Qual...

23

Nuclear Weapon  

MedlinePLUS

http://emergency.cdc.gov/radiation What is a nuclear weapon? A nuclear weapon is a device that uses ... radioactive and can contaminate anything it lands on. NUCLEAR WEAPON What are the main dangers of a nuclear ...

24

Seismic Data for Evaluation of Ground Motion Hazards in Las Vegas in Support of Test Site Readiness Ground Motion  

SciTech Connect

In this report we describe the data sets used to evaluate ground motion hazards in Las Vegas from nuclear tests at the Nevada Test Site. This analysis is presented in Rodgers et al. (2005, 2006) and includes 13 nuclear explosions recorded at the John Blume and Associates network, the Little Skull Mountain earthquake and a temporary deployment of broadband station in Las Vegas. The data are available in SAC format on CD-ROM as an appendix to this report.

Rodgers, A

2008-01-16

25

todasuvida: Las personas con diabetes son ms  

E-print Network

diabetes Controlesu todasuvida: Las personas con diabetes son más propensas a padecer de enfermedades del corazón que quienes no tienen diabetes. Boletín 631 D Las personas con diabetes tienen mayor- res relacionados con la diabetes, como derrame cerebral, mala circulación en las piernas y pies e

26

Cadenas productivas y productividad de las Mipymes  

Microsoft Academic Search

Resumen El concepto de las cadenas productivas ha tomado en los últimos años un peso importante para el desarrollo de las empresas, tanto en los países desarrollados como en desarrollo. Sin embargo, en los países en desarrollo, los principales agentes económicos que son las empresas no han sabido convertir este elemento en una ventaja competitiva. Peor aún en México donde

Danielle Tomta; Cèsaire Chiatchoua

2010-01-01

27

Nuclear Medicine.  

ERIC Educational Resources Information Center

Describes the use of nuclear medicine techniques in diagnosis and therapy. Describes instrumentation in diagnostic nuclear medicine and predicts future trends in nuclear medicine imaging technology. (Author/MM)

Badawi, Ramsey D.

2001-01-01

28

Nuclear Forces  

NSDL National Science Digital Library

This collection explores the state of the world's current nuclear arsenals, including those of the five acknowledged nuclear powers. India and Pakistan have not formally placed their nuclear arsenal on a delivery system.

Christopher Griffith

29

Nuclear Engineering Nuclear Criticality Safety  

E-print Network

, and neutron spectra. The NE nuclear criticality safety (NCS) capabilities are based on a staff with decadesNuclear Engineering Nuclear Criticality Safety The Nuclear Engineering Division (NE) of Argonne National Laboratory is experienced in performing criticality safety and shielding evaluations for nuclear

Kemner, Ken

30

La logística como factor de competitividad de las Pymes en las Américas  

Microsoft Academic Search

En América Latina y el Caribe, a pesar de las mejoras experimentadas a nivel logístico en los últimos años, persisten algunos problemas estructurales que suponen un freno a las exportaciones de las empresas de la región, afectando de manera particular a las pymes. En este documento se hace hincapié en cuáles son los principales desafíos que se deben afrontar en

Carlos Kirby; Nicolau Brosa

2011-01-01

31

Nuclear weapons and nuclear war  

SciTech Connect

This book examines the potential radiation hazards and environmental impacts of nuclear weapons. Topics considered include medical responsibility and thermonuclear war, the threat of nuclear war, nuclear weaponry, biological effects, radiation injury, decontamination, long-term effects, ecological effects, psychological aspects, the economic implications of nuclear weapons and war, ethics, civil defense, arms control, nuclear winter, and long-term biological consequences of nuclear war.

Cassel, C.; McCally, M.; Abraham, H.

1984-01-01

32

Nuclear Facilities  

NSDL National Science Digital Library

In order to produce nuclear weapons, each country must have facilities to produce and refine the nuclear materials, conduct research on weapon design, and store the completed weapons. The interactives in this collection allow you to explore the nuclear facilities of the nuclear powers (both declared and undeclared).

Christopher Griffith

33

Usos de las tecnologías de la información y de la comunicación en las instituciones de enseñanza superior de Europa: De las brechas digitales a las trayectorias digitales  

Microsoft Academic Search

digital educativa y tratarlos en el contexto de la Unión Europea y el segundo es desarrollar una hipótesis alternativa para las trayectorias digitales educativas en lugar de fijarse en las brechas educativas.\\u000aLa primera sección define los tres niveles de brechas digitales. El primer nivel de brecha digital educativa se refiere a las diferencias en cuanto a equipamiento de TIC.

Adel Ben Youssef; Ludovic Ragni

2008-01-01

34

Esquema hilemórfico virtual “El caso de las TIC´s y las subjetividades mediáticas en las instituciones educativas”  

Microsoft Academic Search

La cuestión sustantiva es cómo capacitar y para qué, de modo de no caer en las redes tradicionales pero tampoco de perder el norte y pasar a incorporar bulímicamente conocimientos que nos hagan otra vez caer en la indigestión. La transmisión de información, plantea a los procesos de formación actuales el desafío de construir signos y símbolos cuando las señales

Lya Adlih Oros Méndez

2011-01-01

35

Las Vegas bets on a sure winner  

Microsoft Academic Search

To protect the quality of Lake Mead and Las Vegas Wash in Nevada, six water treatment alternatives and three wastewater treatment plants in the Las Vegas Valley were analyzed. The treatment plants and the treatment alternatives are described. Studies on cost-effectiveness, functional limitations, environmental impact, and energy-efficiency of the treatment alternatives are discussed. The low lime treatment mode should be

J. B. Gilbert; G. L. Culp; J. E. Salo

1980-01-01

36

Incendio latente bajo las Tablas de Daimiel   

E-print Network

El incendio de las turberas secas del Parque Nacional de Las Tablas de Daimiel que se detectó en el verano de 2009 llevó a la sociedad española a conocer de primera mano y de golpe la amenaza que representan los incendios latentes. La combustión...

Rein, Guillermo

37

University Libraries University of Nevada, Las Vegas University of Nevada, Las Vegas  

E-print Network

University Libraries University of Nevada, Las Vegas University of Nevada, Las Vegas Center organizations. Two Reports on Monthly Nevada Gaming Revenues The Center released the Nevada Gaming Statistics Libraries University of Nevada, Las Vegas In addition, the Nevada Gaming Statistics: The Last Six Months

Walker, Lawrence R.

38

University Libraries University of Nevada, Las Vegas University of Nevada, Las Vegas  

E-print Network

University Libraries University of Nevada, Las Vegas University of Nevada, Las Vegas Center has added data for Delaware and Kansas. Two Reports on Monthly Nevada Gaming Revenues The Center released the Nevada Gaming Statistics: October Comparison, which examines revenue trends for Statewide, Las

Hemmers, Oliver

39

Potencial de las comarcas aragonesas para la localización industrial. Implicaciones para las autoridades públicas  

Microsoft Academic Search

RESUMEN Para que las empresas puedan desarrollar favorablemente sus actividades manufactureras, logísticas o de cualquier otra índole, es necesario que el espacio físico en el que se van a desarrollar disponga, de la infraestructura básica que las organizaciones demandan y que afectan no sólo al suelo industrial sino a las instalaciones que los propios polígonos les facilitan. El objetivo de

Lucía Isabel García Cebrián; Antonio Muñoz Porcar

2010-01-01

40

Nuclear Scans  

MedlinePLUS

Nuclear scans use radioactive substances to see structures and functions inside your body. They use a special ... images. Most scans take 20 to 45 minutes. Nuclear scans can help doctors diagnose many conditions, including ...

41

Nuclear ventriculography  

MedlinePLUS

... Radionuclide ventriculography (RNV); Multiple gate acquisition scan (MUGA); Nuclear cardiology ... Nuclear imaging tests carry a very low risk. Exposure to the radioisotope delivers a small amount of radiation. This ...

42

Nuclear Winter.  

ERIC Educational Resources Information Center

"Nuclear Winter" was recently coined to describe the climatic and biological effects of a nuclear war. These effects are discussed based on models, simulations, scenarios, and projections. Effects on human populations are also considered. (JN)

Ehrlich, Anne

1984-01-01

43

Nuclear Receptors  

NSDL National Science Digital Library

This Teaching Resource provides lecture notes and slides for a class covering nuclear receptors and is part of the course "Cell Signaling Systems: A Course for Graduate Students." The lecture begins with a discussion of the structure of nuclear hormone receptors and then proceeds to describe mechanisms of transcriptional regulation, modulation of nuclear receptor activity by phosphorylation, and the role of nuclear receptors in cancer.

Reshma Taneja (Mount Sinai School of Medicine; Department of Molecular Cell and Developmental Biology REV)

2005-05-31

44

Nuclear Fuels.  

ERIC Educational Resources Information Center

Trends in and factors related to the nuclear industry and nuclear fuel production are discussed. Topics addressed include nuclear reactors, survival of the U.S. uranium industry, production costs, budget cuts by the Department of Energy and U.S. Geological survey for resource studies, mining, and research/development activities. (JN)

Nash, J. Thomas

1983-01-01

45

Nuclear weapons, nuclear effects, nuclear war  

SciTech Connect

This paper provides a brief and mostly non-technical description of the militarily important features of nuclear weapons, of the physical phenomena associated with individual explosions, and of the expected or possible results of the use of many weapons in a nuclear war. Most emphasis is on the effects of so-called ``strategic exchanges.``

Bing, G.F.

1991-08-20

46

Nuclear weapons, nuclear effects, nuclear war  

Microsoft Academic Search

This paper provides a brief and mostly non-technical description of the militarily important features of nuclear weapons, of the physical phenomena associated with individual explosions, and of the expected or possible results of the use of many weapons in a nuclear war. Most emphasis is on the effects of so-called ``strategic exchanges.``

1991-01-01

47

Atmospheric Radioxenon Measurements in North Las Vegas, NV  

SciTech Connect

PNNL deployed the ARSA radioxenon measurement system in North Las Vegas for two weeks in February and March 2006 for the purpose of measuring the radioxenon background at a level of sensitivity much higher than previously done in the vicinity of the NTS. The measurements establish what might be expected if future measurements are taken at NTS itself. The measurements are also relevant to test site readiness. A second detector, the PEMS, built and operated by DRI, was deployed in conjunction with the ARSA and contained a PIC, aerosol collection filters, and meteorological sensors. Originally, measurements were also to be performed at Mercury, NV on the NTS, but these were canceled due to initial equipment problems with the ARSA detector. Some of the radioxenon measurements detected 133Xe at levels up to 3 mBq/m3. This concentration of radioxenon is consistent with the observation of low levels of radioxenon emanating from distance nuclear reactors. Previous measurements in areas of high nuclear reactor concentration have shown similar results, but the western US, in general, does not have many nuclear reactors. Measurements of the wind direction indicate that the air carrying the radioxenon came from south of the detector and not from the NTS.

Milbrath, Brian D.; Cooper, Matthew W.; Lidey, Lance S.; Bowyer, Ted W.; Hayes, James C.; McIntyre, Justin I.; Karr, L.; Shafer, D.; Tappen, J.

2006-07-31

48

Comprehensive Analysis of Broadband Seismic Data in Las Vegas Valley  

NASA Astrophysics Data System (ADS)

The city of Las Vegas is one of the fastest growing metropolitan areas in the world. Its urban area is located in a relatively broad sedimentary basin in the Basin and Range Province. Acknowledging that Las Vegas of 2003 is drastically different from Las Vegas of a decade ago, our objectives are to understand and predict ground motions and evaluate the effects of possible future earthquakes and nuclear tests at Nevada Test Site (NTS) on buildings in Las Vegas. A model of the basin depth was derived from gravity data in an independent study, while a model of compressional velocity structure of the basin was derived from seismic refraction studies. We are using strong motion accelerometers regional data, as well as newly acquired broadband teleseismic data to evaluate these models, and predict ground motions at the surface. Delay times of about a dozen analyzed teleseismic P-waves show variation of up to 0.5 seconds across relatively short distances (15 km or less), providing some valuable information on basin shape and thickness. Teleseismic P-waves have favorable signal-to-noise for low frequencies (0.1 to 1.0 Hz). This provides complementary site response measurements to those obtained from regional earthquakes and explosions. Our results indicate a clear difference in site response between hard-rock and basin stations, with amplification reaching factor 5 for the basin stations. The measured P and S wave energies for the recorded data also corelate well with the existing basin depth model, providing additional constraint in modeling the basin shape and structure. We use time domain deconvolution receiver functions to constrain the position of basin boundaries and main crustal discontinuities. Finally, we simulate low frequency (f < 1 Hz) theoretical ground motion in Las Vegas Valley by an elastic finite difference code. Preliminary results show that we can predict relative amplification, as well as some of the complexity in the waveforms, even without invoking complex (and computationaly expensive) three-dimensional structural models. This work is in progress.

Tkalcic, H.; Rodgers, A.; Snelson, C.; McEwan, D.

2003-12-01

49

Premios Literarios Casa de las Américas, 1980  

E-print Network

86 LATIN AMERICAN THEATRE REVIEW Premios Literarios Casa de las Américas, 1980 Los cuarenta y cinco intelectuales de veintitrés países integrantes del Jurado del Premio Literario Casa de las Américas 1980, transcurridas varias semanas de... intensas lecturas y deliberaciones, seleccionaron los doce libros para la Co lección Premio, entre los 632 originales inéditos, recibidos este año desde treinta y cuatro países, en los diversos géneros y categorías que se convocan. Los jurados, además de...

1980-04-01

50

Nuclear Halos  

SciTech Connect

We show that extreme nuclear halos are caused only by pairs of s-wave neutrons (or single s-wave neutrons) and that such states occur much more frequently in the periodic table than previously believed. Besides lingering long near zero neutron separation energy such extreme halos have very remarkable properties: they can contribute significantly to the nuclear density at more than twice the normal nuclear radius and their spreading width can be very narrow. The properties of these states are primarily determined by the ''thickness'' of the nuclear surface in the mean-free nuclear potential and thus their importance increases greatly as we approach the neutron drip line. We discuss what such extreme halos are, where they occur, what their properties are and some of their impact on nuclear observations.

Vogt, Erich [TRIUMF, 4004 Wesbrook Mall, Vancouver, BC, V6T 2A3 (Canada)

2010-07-27

51

Nuclear APC  

PubMed Central

Mutational inactivation of the tumor suppressor gene APC (Adenomatous polyposis coli) is thought to be an initiating step in the progression of the vast majority of colorectal cancers. Attempts to understand APC function have revealed more than a dozen binding partners as well as several subcellular localizations including at cell-cell junctions, associated with microtubules at the leading edge of migrating cells, at the apical membrane, in the cytoplasm and in the nucleus. The present chapter focuses on APC localization and functions in the nucleus. APC contains two classical nuclear localization signals, with a third domain that can enhance nuclear import. Along with two sets of nuclear export signals, the nuclear localization signals enable the large APC protein to shuttle between the nucleus and cytoplasm. Nuclear APC can oppose ?-catenin-mediated transcription. This down-regulation of nuclear ?-catenin activity by APC most likely involves nuclear sequestration of ?-catenin from the transcription complex as well as interaction of APC with transcription corepressor CtBP. Additional nuclear binding partners for APC include transcription factor activator protein AP-2?, nuclear export factor Crm1, protein tyrosine phosphatase PTP-BL and perhaps DNA itself. Interaction of APC with polymerase ? and PCNA, suggests a role for APC in DNA repair. The observation that increases in the cytoplasmic distribution of APC correlate with colon cancer progression suggests that disruption of these nuclear functions of APC plays an important role in cancer progression. APC prevalence in the cytoplasm of quiescent cells points to a potential function for nuclear APC in control of cell proliferation. Clear definition of APC's nuclear function(s) will expand the possibilities for early colorectal cancer diagnostics and therapeutics targeted to APC. PMID:19928349

Neufeld, Kristi L.

2011-01-01

52

Nuclear astrophysics  

SciTech Connect

The problem of core-collapse supernovae is used to illustrate the many connections between nuclear astrophysics and the problems nuclear physicists study in terrestrial laboratories. Efforts to better understand the collapse and mantle ejection are also motivated by a variety of interdisciplinary issues in nuclear, particle, and astrophysics, including galactic chemical evolution, neutrino masses and mixing, and stellar cooling by the emission of new particles. The current status of theory and observations is summarized.

Haxton, W.C.

1992-01-01

53

Nuclear astrophysics  

SciTech Connect

The problem of core-collapse supernovae is used to illustrate the many connections between nuclear astrophysics and the problems nuclear physicists study in terrestrial laboratories. Efforts to better understand the collapse and mantle ejection are also motivated by a variety of interdisciplinary issues in nuclear, particle, and astrophysics, including galactic chemical evolution, neutrino masses and mixing, and stellar cooling by the emission of new particles. The current status of theory and observations is summarized.

Haxton, W.C.

1992-12-31

54

Nuclear theory  

SciTech Connect

This edition incorporates new chapters on the general collective model for low-energy modes; magnetic properties of nuclear collective states; nuclear octupole surface motion; the boson approach to collective motion; heavy-ion physics; nuclear shock waves in relativistic heavy-ion collisions; and nuclear astrophysics. Especially the last two topics are related to other areas of fundamental modern research in high-energy physics and astrophysics. In addition there is a new section on coordinate symmetries in the collective model, and a new section on the two-center shell model.

Eisenberg, J.M.; Greiner, W.

1987-01-01

55

Investigacin La creciente amenaza de las invasiones biolgicas  

E-print Network

Investigación La creciente amenaza de las invasiones biológicas P. Castro-Díez (1) , F. Valladares las amenazas ambientales y socioeconómicas que suponen. Introducción Hablamos de invasiones biológicas

Espigares, Tíscar

56

UNIVERSIDADE TECNICA DE LISBOA INSTITUTO SUPERIOR TECNICO  

E-print Network

SPECT, PET and CT imaging Molecular imaging Theoretical and psychophysical investigations of image metrology with maximum-likelihood methods Electron imaging Stem cells Digital radiology and telemedicine

Instituto de Sistemas e Robotica

57

UNIVERSIDADE TECNICA DE LISBOA INSTITUTO SUPERIOR TECNICO  

E-print Network

´atica Aplicada Orientador: Doutor Jos´e F´elix Gomes da Costa Provas conclu´idas em: Resumo: Pretende-se analisar and Recursive Functions Over the Reals Daniel da Silva Gra¸ca MSc thesis (submitted) July 2002 #12;#12;O Computador Anal´ogico e Fun¸c~oes Reais Recursivas Nome: Daniel da Silva Gra¸ca Curso de Mestrado em: Matem

Lisboa, Universidade Técnica de

58

UNIVERSIDADE TECNICA DE LISBOA INSTITUTO SUPERIOR TECNICO  

E-print Network

, provavelmente, mais fortemente influenciou a minha maneira de ser. A Ana ensinou-me que o racionalismo mais bem^encia e Tecnologia, que financiou o meu Doutoramento, e `a Funda¸c~ao Luso-Americana para o

Instituto de Sistemas e Robotica

59

UNIVERSIDADE TECNICA DE LISBOA INSTITUTO SUPERIOR TECNICO  

E-print Network

;#12;Resumo Muitas tarefas em robotica podem bene ciar perceptualmente do seguimento de alvos moveis no espaco genericos. Apresenta-se a implementac~ao do sistema projectado numa cabeca robotica de vis~ao activa~ao utilizadas no controlo dos movimentos de seguimento. Palavras Chave: vis~ao robotica, percepc~ao, sistemas

Instituto de Sistemas e Robotica

60

Universidade Tecnica de Lishoa Investiga~ao  

E-print Network

a partir de quatro escolas ja existentes: a Escola Superior de Medicina Veterinaria (a ac tual Faculdade tor experimental de fusao em que participa todo 0 mundo Ocidental) e outros que cruzam a tecnologia '".... '"~ tricidade - e e, desde ja, «0primeiroexemploda globalizacao da ciencia e da tecnologia», atesta Carlos

61

Nuclear accidents  

NSDL National Science Digital Library

Accidents at nuclear power plants can be especially devastating to people and the environment. This article, part of a series about the future of energy, introduces students to nuclear accidents at Chernobyl, Three Mile Island, and Tokaimura. Students explore the incidents by examining possible causes, environmental impacts, and effects on life.

Iowa Public Television. Explore More Project

2004-01-01

62

Nuclear safety  

NASA Technical Reports Server (NTRS)

Topics dealing with nuclear safety are addressed which include the following: general safety requirements; safety design requirements; terrestrial safety; SP-100 Flight System key safety requirements; potential mission accidents and hazards; key safety features; ground operations; launch operations; flight operations; disposal; safety concerns; licensing; the nuclear engine for rocket vehicle application (NERVA) design philosophy; the NERVA flight safety program; and the NERVA safety plan.

Buden, D.

1991-01-01

63

LA ESTRATEGIA Y LA POLÍTICA SECTORIAL DE LAS TECNOLOGÍAS DE LA INFORMACIÓN Y LAS TELECOMUNICACIONES  

Microsoft Academic Search

La política pública de la administración de las Tecnologías de la Información y las Telecomunicaciones, ha experimentado cambios en Colombia. Dichos cambios se inspiran en la necesidad de administrar mejor el espectro radioeléctrico, un recurso escaso del que El Estado es propietario. Los principios de la Ley 1341 de TIC, están inspirados en el enfoque de estrategia emergente, que permitirá

Luis Fernando Valenzuela

2011-01-01

64

University Libraries University of Nevada, Las Vegas University of Nevada, Las Vegas  

E-print Network

University Libraries University of Nevada, Las Vegas University of Nevada, Las Vegas Center for Gaming Research Update January 2012 Three Reports on "Average" Nevada Casinos The Nevada Gaming Abstract Casino, 2011 Two Historical Reports on Nevada Gaming Nevada casino resorts have always been about more

Hemmers, Oliver

65

University Libraries University of Nevada, Las Vegas University of Nevada, Las Vegas  

E-print Network

University Libraries University of Nevada, Las Vegas University of Nevada, Las Vegas Center://gaming.unlv.edu/about/events.html or contact 702-895-2277. More New & Updated Nevada Reports With the release of the Nevada Gaming Abstract by the Nevada Gaming Control Board, we have been able to release one new report, and to update others. The new

Hemmers, Oliver

66

University Libraries University of Nevada, Las Vegas University of Nevada, Las Vegas  

E-print Network

University Libraries University of Nevada, Las Vegas University of Nevada, Las Vegas Center for Gaming Research Update September 2013 Mid-Year Southern Nevada report In collaboration with Colliers for the gaming industry in Southern Nevada: 2013 Mid Year Report With half of 2013 behind us, visitor volume

Hemmers, Oliver

67

Nuclear War  

SciTech Connect

Several chapters in Last Aid warrant the attention of the medical profession. What is known and not known about acute biologic effects following a nuclear explosion is described. The social, physical, and environmental impact of nuclear war on urban population centers is described. How nuclear weapons could affect the composition of the ozone layer and the effects this could have on human survival, including possible interruption of the aquatic ecosystem to produce single-cell organisms for the food cycle, especially seafood is noted.

MacLeod, G.K.

1983-01-01

68

El diseño y las industrias manufactureras irlandesas  

Microsoft Academic Search

Jordi Berrio nos introduce en las experiencia de Irlanda, que ha realizado una verdadera revolución en su estructura productiva. Centrándose básicamente en el diseño industrial, el artículo dibuja un modelo de posibles políticas de promoción del diseño en el que se manifiesta reiteradamente su importancia en el desarrollo de la producción.

Jordi Berrio

2005-01-01

69

Las culturas políticas del republicanismo histórico español  

Microsoft Academic Search

Desde la perspectiva teórica denominada «Giro cultural», hemos tratado de repensar la formación del movimiento republicano español durante el siglo XIX, el cual tradicionalmente ha sido concebido de forma unívoca. En realidad, varios movimientos sociales coexistieron dentro del republicanismo español. Al menos desde tres culturas políticas republicanas (socialismo jacobino, demosocialismo y demoliberalismo) fueron movilizadas las clases populares españolas y se

Román Miguel González

2004-01-01

70

Las Vegas bets on a CETA pair  

Microsoft Academic Search

Since mid-1975, the Comprehensive Employment and Training Act (CETA), prime sponsor for Las Vegas and surrounding Clark County has placed about $207,000 in title I funds on two innovative programs. One offers training for radiological safety technicians and the other prepares enrollees to be directional drillers sometimes called slant drillers. The programs utilized facilities at the Nevada Test Site. The

Stevenson

1976-01-01

71

Evidencia sobre las Desinflaciones: Experiencia Internacional  

Microsoft Academic Search

En el presente artículo se analizan las políticas desinflacionarias utilizadas para lograr el paso de inflación moderada a inflación de un dígito en nueve países cuya estructura es semejante a la colombiana y cuyo éxito desinflacionario ha sido sostenible. Estos son: Chile, Bolivia, Grecia, España, Portugal, Irlanda, Israel, Nueva Zelandia e Islandia. Además, para cada uno se utilizan dos criterios

Carlos Humberto Cardona; Adriana Pontón; Eduardo Sarmiento

1998-01-01

72

LAS Language Arts Supplement, English. Revised Edition.  

ERIC Educational Resources Information Center

This collection of over 100 games and activities is intended to increase oral proficiency among Spanish-speaking children without requiring reading skills. The collection grew out of the desire to provide remedies for specific linguistic weaknesses in English as identified by the Language Assessment Scales (LAS). Because tongue twisters, riddles…

DeAvila, Edward A.; Duncan, Sharon E.

73

AN IMPLEMENTATION OF THE ASPRS LAS STANDARD  

Microsoft Academic Search

The laser scanning technology has become de-facto as a successful measuring mean in numerous applications of remote sensing and mapping. A development of hardware has been followed by a development of a new data file format standard know as the American society for Photogrammetry and Remote Sensing (ASPRS) Lidar Exchange Format (LAS). This data format standard has been designed in

Andre Samberg

2007-01-01

74

Optimal Speedup of Las Vegas Algorithms  

Microsoft Academic Search

Let A be a Las Vegas algorithm, i.e., A is a randomized algorithmthat always produces the correct answer when it stops but whose runningtime is a random variable. We consider the problem of minimizingthe expected time required to obtain an answer from A using strategieswhich simulate A as follows: run A for a fixed amount of timet 1 , then

Michael Luby; Alistair Sinclair; David Zuckerman

1993-01-01

75

Las proyecciones de población como método estadístico  

Microsoft Academic Search

La estructura del trabajo es la siguiente. En la sección 2 se introduce el proceso de evento. Se trata de un solo proceso con un resultado. Se describen las principales\\u000acaracterísticas del proceso y se utiliza la microsimulación para determinar la distribución de los tiempos de espera de los acontecimientos. En la sección 3, se considera un proceso recurrente con

F. J. C. Willekens

2012-01-01

76

Alcoholism and Drug Abuse in Las Juntas  

Microsoft Academic Search

Background: Originally, while in Costa Rica I wanted to investigate alcoholism and drug addiction within the Las Juntas community. Specifically, I wanted to look at addiction as it pertains to the mining community in comparison with the rest of the public. I hypothesized that there may be cultural influences from the mining community, that may correlate with alcoholism and drug

Suzanne Wasserman

77

Premio Casa de las Américas 1995  

E-print Network

112 LATIN AMERICAN THEATRE REVIEW Premio Casa de las Américas 1995 1) El cuento Alguien tiene que llorar, de Marilyn Bobes León, Cuba. 2) El testimonio El sueño africano del Che. ¿Qué sucedió en la guerrilla congolesa?, de William Gálvez, Cuba...

1995-10-01

78

New American Home 2004: Las Vegas, Nevada  

SciTech Connect

The New American Home is an annual showcase project co-sponsored by the National Association of Home Builders' National Council of the Housing Industry and Builder Magazine. Merlin Contracting built this year's home in the Sahara Lake community, just west of downtown Las Vegas.

Not Available

2003-12-01

79

Las dificultades de sentir: el rol de las emociones en la estigmatización del VIH/SIDA  

PubMed Central

Resumen El Virus de Inmunodeficiencia Humana (VIH) y el Síndrome de Inmunodeficiencia Adquirida (SIDA) han sido motivo de estigmatización para las personas que viven con ellos. Esta estigmatización se ha estudiado consecuentemente desde la perspectiva de opiniones de agentes estigmatizantes. Estas opiniones han obviado sistemáticamente el rol de las emociones en el proceso de estigmatización. Llevamos a cabo este estudio con el propósito de identificar el rol de las emociones en el proceso de estigmatización de las personas que viven con el virus (PVVS) por parte de profesionales de la salud. Para lograr este objetivo utilizamos un diseño exploratorio y cualitativo en el cual utilizamos la técnica de entrevistas semiestructuradas a profundidad. La muestra estuvo compuesta por 80 profesionales de la salud y estudiantes de las siguientes especialidades: psicología, trabajo social, medicina y enfermería. Los resultados reflejaron la existencia de emociones asociadas al VIH/SIDA tales como pena, lástima, compasión, asco, fobia y miedo entre los/as profesionales y estudiantes que participaron. Las personas participantes evidenciaron la necesidad de controlar sus emociones al interactuar con PVVS. Los resultados apuntan a la necesidad de explorar aquellos factores que mediatizan las emociones, tales como el contexto social en que se manifiestan y ante quiénes se revelan, para lograr entender a cabalidad el estigma que rodea al VIH/SIDA. PMID:20212916

MARZÁN-RODRÍGUEZ, Melissa; VARAS-DÍAZ, Nelson

2009-01-01

80

Nuclear Celebrations  

E-print Network

Broadcast Transcript: The North Korean situation is frightening for many reasons but none, perhaps, more eerily disturbing than images of North Koreans celebrating in brightly colored costumes just days after the nation's underground nuclear test...

Hacker, Randi; Tsutsui, William

2006-11-01

81

Nuclear Blast  

MedlinePLUS

... more susceptible to blast effects. Existing meteorological conditions. Wind speed and direction will affect arrival time of ... from a nuclear explosion may be carried by wind currents for hundreds of miles if the right ...

82

Nuclear Power  

E-print Network

Plant on the Vltava River (Czech Republic) ?#1;#1; Eduard Hansl?k, Diana Ivanovov? Fatigue, sleep disorders, and excessive sleepiness: important factors for nuclear power shift workers ??? Marco T?lio de Mello Benchmark modeling and analysis...

83

Nuclear Nonproliferation  

SciTech Connect

With an explosion equivalent of about 20kT of TNT, the Trinity test was the first demonstration of a nuclear weapon. Conducted on July 16, 1945 in Alamogordo, NM this site is now a Registered National Historic Landmark. The concept and applicability of nuclear power was demonstrated on December 20, 1951 with the Experimental Breeder Reactor Number One (EBR-1) lit four light bulbs. This reactor is now a Registered National Historic Landmark, located near Arco, ID. From that moment forward it had been clearly demonstrated that nuclear energy has both peaceful and military applications and that the civilian and military fuel cycles can overlap. For the more than fifty years since the Atoms for Peace program, a key objective of nuclear policy has been to enable the wider peaceful use of nuclear energy while preventing the spread of nuclear weapons. Volumes have been written on the impact of these two actions on the world by advocates and critics; pundits and practioners; politicians and technologists. The nations of the world have woven together a delicate balance of treaties, agreements, frameworks and handshakes that are representative of the timeframe in which they were constructed and how they have evolved in time. Collectively these vehicles attempt to keep political will, nuclear materials and technology in check. This paper captures only the briefest abstract of the more significant aspects on the Nonproliferation Regime. Of particular relevance to this discussion is the special nonproliferation sensitivity associated with the uranium isotope separation and spent fuel reprocessing aspects of the nuclear fuel cycle.

Atkins-Duffin, C E

2008-12-10

84

Nuclear accidents.  

PubMed

A nuclear accident with radioactive contamination can happen anywhere in the world. Because expert nuclear emergency teams may take several hours to arrive at the scene, local authorities must have a plan of action for the hours immediately following an accident. The site should be left untouched except to remove casualties. Treatment of victims includes decontamination and meticulous wound debridement. Acute radiation syndrome may be an overwhelming sequela. PMID:7072574

Mobley, J A

1982-05-01

85

Nuclear cardiac  

SciTech Connect

The relationship between nuclear medicine and cardiology has continued to produce a surfeit of interesting, illuminating, and important reports involving the analysis of cardiac function, perfusion, and metabolism. To simplify the presentation, this review is broken down into three major subheadings: analysis of myocardial perfusion; imaging of the recent myocardial infarction; and the evaluation of myocardial function. There appears to be an increasingly important relationship between cardiology, particularly cardiac physiology, and nuclear imaging techniques. (KRM)

Slutsky, R.; Ashburn, W.L.

1982-01-01

86

Nuclear waste storage  

SciTech Connect

This package details the latest developments and considerations in US DOE for nuclear waste storage. Audiences interested in this package are nuclear waste generating companies, nuclear waste transporting and storage facilities, nuclear energy lobbyists and lawyers representing nuclear waste cases.

NONE

1995-07-01

87

Nuclear scales  

SciTech Connect

Nuclear scales are discussed from the nuclear physics viewpoint. The conventional nuclear potential is characterized as a black box that interpolates nucleon-nucleon (NN) data, while being constrained by the best possible theoretical input. The latter consists of the longer-range parts of the NN force (e.g., OPEP, TPEP, the {pi}-{gamma} force), which can be calculated using chiral perturbation theory and gauged using modern phase-shift analyses. The shorter-range parts of the force are effectively parameterized by moments of the interaction that are independent of the details of the force model, in analogy to chiral perturbation theory. Results of GFMC calculations in light nuclei are interpreted in terms of fundamental scales, which are in good agreement with expectations from chiral effective field theories. Problems with spin-orbit-type observables are noted.

Friar, J.L.

1998-12-01

88

Nuclear waste  

SciTech Connect

This paper discusses how, as part of the Department of Energy's implementation of the Nuclear Waste Policy Act of 1982, DOE is required to investigate a site at Yucca Mountain, Nevada and, if it determines that the site is suitable, recommend to the President its selection for a nuclear waste repository. The Nuclear Regulatory Commission, in considering development of the plan, issued five objections, one of which is DOE's failure to recognize the range of alternative conceptual models of the Yucca Mountain site that can be supported by the limited existing technical data. At the end of the quarter DOE directed its project offices in Washington and Texas to begin orderly phase-out of all site-specific repository activities. Costs for this phase-out are $53 million for the Deaf Smith site and $85 million for the Hanford site.

Not Available

1988-05-01

89

Nuclear pursuits  

SciTech Connect

This table lists quantities of warheads (in stockpile, peak number per year, total number built, number of known test explosions), weapon development milestones (developers of the atomic bomb and hydrogen bomb, date of first operational ICBM, first nuclear-powered naval SSN in service, first MIRVed missile deployed), and testing milestones (first fission test, type of boosted fission weapon, multistage thermonuclear test, number of months from fission bomb to multistage thermonuclear bomb, etc.), and nuclear infrastructure (assembly plants, plutonium production reactors, uranium enrichment plants, etc.). Countries included in the tally are the United States, Soviet Union, Britain, France, and China.

Not Available

1993-05-01

90

Nuclear winter or nuclear fall?  

NASA Astrophysics Data System (ADS)

Climate is universal. If a major modern nuclear war (i.e., with a large number of small-yield weapons) were to happen, it is not even necessary to have a specific part of the world directly involved for there to be cause to worry about the consequences for its inhabitants and their future. Indeed, smoke from fires ignited by the nuclear explosions would be transported by winds all over the world, causing dark and cold. According to the first study, by Turco et al. [1983], air surface temperature over continental areas of the northern mid-latitudes (assumed to be the nuclear war theatre) would fall to winter levels even in summer (hence the term “nuclear winter”) and induce drastic climatic conditions for several months at least. The devastating effects of a nuclear war would thus last much longer than was assumed initially. Discussing to what extent these estimations of long-term impacts on climate are reliable is the purpose of this article.

Berger, André

91

Nuclear fusion  

Microsoft Academic Search

The advantages of nuclear fusion as an energy source and research progress in this area are summarized. The current state of the art is described. Laser fusion, inertial confinement fusion, and magnetic fusion (the tokamak) are explained, the latter in some detail. Remaining problems and planned future reactors are considered. They are the Compact Ignition Tokamak (CIT), the International Thermonuclear

T. K. Fowler

1989-01-01

92

Nuclear Science.  

ERIC Educational Resources Information Center

This document is a report on a course in nuclear science for the high school curriculum. The course is designed to provide a basic but comprehensive understanding of the atom in the light of modern knowledge, and to show how people attempt to harness the tremendous energy liberated through fission and fusion reactions. The course crosses what are…

Pennsylvania State Dept. of Education, Harrisburg. Bureau of Curriculum Services.

93

Nuclear Golf  

E-print Network

Broadcast Transcript: Pay no attention to that nuclear warhead behind the 18th hole; just shout "Fore!" and drive your Titleist down the fairway. In a development that is bizarre even by North Korean standards, the country is making a move to sell...

Hacker, Randi; Tsutsui, William

2006-12-06

94

Nuclear Induction  

Microsoft Academic Search

The magnetic moments of nuclei in normal matter will result in a nuclear paramagnetic polarization upon establishment of equilibrium in a constant magnetic field. It is shown that a radiofrequency field at right angles to the constant field causes a forced precession of the total polarization around the constant field with decreasing latitude as the Larmor frequency approaches adiabatically the

F. Bloch

1946-01-01

95

Nuclear medicine  

SciTech Connect

In 1985 and 1986 nuclear medicine became more and more oriented toward in vov chemistry, chiefly as a result of advances in positron emission tomography (PET). The most important trend was the extension of PET technology into the care of patients with brain tumors, epilepsy, and heart disease. A second trend was the increasing use of single-photon emission computed tomography (SPECT).

Wagner, H.N. Jr.

1986-10-17

96

NUCLEAR REACTOR  

Microsoft Academic Search

High temperature reactors which are uniquely adapted to serve as the ; heat source for nuclear pcwered rockets are described. The reactor is comprised ; essentially of an outer tubular heat resistant casing which provides the main ; coolant passageway to and away from the reactor core within the casing and in ; which the working fluid is preferably hydrogen

Grebe

1959-01-01

97

Nuclear fission  

Microsoft Academic Search

Nuclear fission is reviewed. The value of a channel analysis is noted in determining fission cross sections, fluctuations in fission widths and fission asymmetry. The importance of barrier height in any fission mode is emphasized. The difficulty of obtaining the mass distribution of fission fragments by a statistical theory is noted; this situation arises because the result is a strong

J. A. Wheeler

1956-01-01

98

Nuclear fission  

Microsoft Academic Search

The object of the book is to provide a comprehensive account of present ; understanding of nuclear fission. While it is written at an introductory level ; for students of the physics and chemistry of fission, it also attempts to cover ; recent developments at a sufficient depth to make the volume valuable to research ; scientists. The theoretical framework

R. Vandenbosch; J. R. Huizenga

1973-01-01

99

Nuclear Misinformation  

ERIC Educational Resources Information Center

Many scientists feel that research into nuclear safety has been diverted or distorted, and the results of the research concealed or inaccurately reported on a large number of occasions. Of particular concern have been the emergency cooling systems which have not, as yet, been adequately tested. (Author/MA)

Ford, Daniel F.; Kendall, Henry W.

1975-01-01

100

Nuclear Terrorism.  

SciTech Connect

As pointed out by several speakers, the level of violence and destruction in terrorist attacks has increased significantly during the past decade. Fortunately, few have involved weapons of mass destruction, and none have achieved mass casualties. The Aum Shinrikyo release of lethal nerve agent, sarin, in the Tokyo subway on March 20, 1995 clearly broke new ground by crossing the threshold in attempting mass casualties with chemical weapons. However, of all weapons of mass destruction, nuclear weapons still represent the most frightening threat to humankind. Nuclear weapons possess an enormous destructive force. The immediacy and scale of destruction are unmatched. In addition to destruction, terrorism also aims to create fear among the public and governments. Here also, nuclear weapons are unmatched. The public's fear of nuclear weapons or, for that matter, of all radioactivity is intense. To some extent, this fear arises from a sense of unlimited vulnerability. That is, radioactivity is seen as unbounded in three dimensions - distance, it is viewed as having unlimited reach; quantity, it is viewed as having deadly consequences in the smallest doses (the public is often told - incorrectly, of course - that one atom of plutonium will kill); and time, if it does not kill you immediately, then it will cause cancer decades hence.

Hecker, Siegfried S.

2001-01-01

101

Nuclear reactor  

Microsoft Academic Search

A nuclear reactor is described which comprises a reactor vessel, a core housed in the reactor vessel, an ultrasonic transducer mounted in the vicinity of the upper end of the core for emitting and receiving an ultrasonic wave pulse signal propagating above the core. A means is provided for rotating the transducer by a prescribed angle to scan horizontally the

M. Furudate; T. Miyazawa; H. Mizuguchi; K. Sasaki; N. Uesugi

1981-01-01

102

Regulation of las and rhl Quorum Sensing in Pseudomonas aeruginosa  

Microsoft Academic Search

The production of several virulence factors by Pseudomonas aeruginosa is controlled according to cell density through two quorum-sensing systems, las and rhl. The las system is comprised of the transcriptional activator protein LasR and of LasI, which directs the synthesis of the autoinducer PAI-1. Similarly, the rhl system consists of the transcriptional activator protein RhlR and of RhlI, which directs

EVERETT C. PESCI; JAMES P. PEARSON; PATRICK C. SEED; BARBARA H. IGLEWSKI

1997-01-01

103

?Cuales son las amenazas o peligros volcanicos?  

USGS Publications Warehouse

Los volcanes son capaces de producir numerosos peligros geologicos e hidrologicos. Los cientificos del Servicio Geologico de los EE. UU. (USGS, por sus siglas en ingles) y de otras instituciones alrededor del mundo estan estudiando los peligros de muchos de los centenares de volcanes activos y potencialmente activos del mundo. Estos cientificos vigilan muy de cerca la actividad de algunos de los volcanes mas peligrosos, por lo que estan preparados para alertar a las autoridades y/o a la poblacion en caso de que aumente sustancialmente la probabilidad de que ocurra una erupcion u otro evento peligroso.

Myers, Bobbie; Brantley, Steven R.; Stauffer, Peter; Hendley, James W., II

2000-01-01

104

Nuevas tecnologías, democracia y eficiencia de las instituciones políticas  

Microsoft Academic Search

En este artículo, se estudia el impacto que las tecnologías de la información y la comunicación (TIC) y el nivel de democracia que tienen sobre el desempeño de las instituciones políticas. En primer lugar, se estudia empíricamente el impacto que las TIC tienen sobre la eficacia de la acción de gobierno. A este respecto, se muestra estadísticamente para un conjunto

Joan Oriol Prats

2006-01-01

105

LANDSCAPE CHANGE OF THE LAS VEGAS VALLEY, 1972 TO 1998  

EPA Science Inventory

Las Vegas has become one of the fastest growing metropolitan areas in the United States. The cities population has doubled from 1980 to 1994 and in 1995 Las Vegas has surpassed the one million mark. The population of Las Vegas is currently growing at a rate of 7 percent annually....

106

La minoría catalana en las Cortes Constituyentes (1931-1933)  

Microsoft Academic Search

La necesidad de estudios que analicen la política desarrollada por las diferentes minorías en las Cortes resulta imprescindible para entender la compleja política de la década de los treinta. En este contexto, el presente artículo analiza el papel desarrollado por los diputados elegidos en Cataluña en las elecciones a Cortes Constituyentes de 1931. En esas Cortes, los diputados catalanes, sobre

Arnau Gonzàlez i Vilalta

2004-01-01

107

ESTADO DEL ARTE DE CREENCIAS Y ACTITUDES HACIA LAS MATEMÁTICAS  

Microsoft Academic Search

La enseñanza de las matemáticas es actualmente de gran interés para los actores responsables del acto educativo, ya que los propósitos se entienden diferente para alumnos y profesores. Tal situación ha llevado a los matemáticos educativos y otros investigadores a indagar sobre las creencias y actitudes de estudiantes y docentes de matemáticas y su influencia en el logro académico. Las

Genaro Hernández Salazar

2011-01-01

108

Nuclear Power Plant Accidents  

MedlinePLUS

NUCLEAR POWER PLANT ACCIDENTS Nuclear power plants have safety and security procedures in place and are closely monitored by the ... a plume). What are the main dangers of nuclear power plant accidents? Radioactive materials in the plume from the nuclear ...

109

Advanced Airborne CO2 LAS System  

NASA Astrophysics Data System (ADS)

A unique airborne Laser Absorption Spectroscopy (LAS) system has been developed by ITT Space Systems, LLC to address the needs of the National Research Council Decadal Survey Tier 2 mission for Active Sensing of CO2 Emissions over Nights, Days and Seasons (ASCENDS). This instrument has undergone multiple airborne field tests in cooperation with our partners at NASA Langley Research Center (LaRC). The instrument was built largely with off-the-shelf components and uses high reliability telecom components, including lasers, modulators and fiber amplifiers as the transmitter. Multiple wavelengths are transmitted simultaneously from a single collimator and the return signal is collected by a simple 8” telescope that is fiber coupled to a HgCdTe APD. The analog signal is sampled with a high resolution scope card housed in a National Instruments PXI chassis and the digitized signal is then passed through our custom-built software-based lock-in processing system which allows separation of the signals from the individual wavelengths. The separated signals are then used in the standard Differential Absorption Lidar (DIAL) relations to determine the integrated column differential optical depth. This presentation will give a detailed overview of this multi-frequency, single-beam, synchronous lock-in LAS instrument including the basic methodology of the measurement. Recent improvements in the lock-in methodology designed to eliminate the effects of multi- path fading and frequency dependence of the electronic components will also be discussed.

Dobler, J. T.; Braun, M. G.; McGregor, D. P.; Erxleben, W. H.; Browell, E. V.; Harrison, F. W.

2009-12-01

110

Nuclear Fusion  

NSDL National Science Digital Library

This simple and engaging astronomy activity explains nuclear fusion and how radiation is generated by stars, using marshmallows as a model. Learners will explore what cosmic radiation is and where it comes from, and how the elements in the universe are generated. The PDF contains step-by-step instructions, photos, presentation tips, links to background information, and a printable Periodic Table of the Elements.

2012-12-26

111

Nuclear reactor  

Microsoft Academic Search

A nuclear reactor is described in which the core components, including fuel-rod assemblies, control-rod assemblies, fertile rod-assemblies, and removable shielding assemblies, are supported by a plurality of separate inlet modular units. These units are referred to as inlet module units to distinguish them from the modules of the upper internals of the reactor. The modular units are supported, each removable

W. E. Pennell; W. J. Rowan

1977-01-01

112

Nuclear reactor  

Microsoft Academic Search

A nuclear reactor in which the core components, including fuel-rod assemblies, control-rod assemblies, fertile rod-assemblies, and removable shielding assemblies, are supported by a plurality of separate inlet modular units. These units are referred to as inlet module units to distinguish them from the modules of the upper internals of the reactor. The modular units are supported, each removable independently of

William E. Pennell; William J. Rowan

1977-01-01

113

Josefina Bueno: "la exhibicin de la religin instrumentaliza a las mujeres y las convierte en signos visibles de su ideologa"  

E-print Network

fragilidad de la representación pública de las mujeres" y reivindica su papel en las redes sociales que tanta, disidente, en el panorama político y social tan convulso" de sus países de origen. Josefina Bueno considera revueltas y de los cambios sociales porque "además de protagonistas serán las principales afectadas

Escolano, Francisco

114

Qu puedo encontrar Todas las monografas, ttulos de revistas en papel y material multimedia existentes en las bibliotecas de  

E-print Network

existentes en las 24.000 bibliotecas integrantes de la OCLC (Online Computer Library Center) Los títulos de referencias bibliográficas contenidas en las siguientes bases de datos: ArticleFirst, British Library Serials bibliográficas contenidas en las siguientes bases de datos: ArticleFirst, British Library Serials, ERIC, MEDLINE

Escolano, Francisco

115

METROPOLIZACIN, TRANSFORMACIONES MERCANTILES Y GOBERNANZA EN LOS PASES EMERGENTES LAS GRANDES CIUDADES EN LAS MUTACIONES DEL COMERCIO MUNDIAL  

E-print Network

CIUDADES EN LAS MUTACIONES DEL COMERCIO MUNDIAL SEMINARIO INTERNACIONAL ­ 1-3 DE JULIO DE 2009 - COLEGIO DE países emergentes las grandes ciudades en las mutaciones del comercio mundial Seminario Internacional una revisión de esa tesis. 1. Porque la expansión internacional del comercio a menudeo La expansión

Paris-Sud XI, Université de

116

Nuclear photonics  

NASA Astrophysics Data System (ADS)

With the planned new ?-beam facilities like MEGa-ray at LLNL (USA) or ELI-NP at Bucharest (Romania) with 1013 ?/s and a band width of ?E?/E??10-3, a new era of ? beams with energies up to 20MeV comes into operation, compared to the present world-leading HI?S facility at Duke University (USA) with 108 ?/s and ?E?/E??3?10-2. In the long run even a seeded quantum FEL for ? beams may become possible, with much higher brilliance and spectral flux. At the same time new exciting possibilities open up for focused ? beams. Here we describe a new experiment at the ? beam of the ILL reactor (Grenoble, France), where we observed for the first time that the index of refraction for ? beams is determined by virtual pair creation. Using a combination of refractive and reflective optics, efficient monochromators for ? beams are being developed. Thus, we have to optimize the total system: the ?-beam facility, the ?-beam optics and ? detectors. We can trade ? intensity for band width, going down to ?E?/E??10-6 and address individual nuclear levels. The term "nuclear photonics" stresses the importance of nuclear applications. We can address with ?-beams individual nuclear isotopes and not just elements like with X-ray beams. Compared to X rays, ? beams can penetrate much deeper into big samples like radioactive waste barrels, motors or batteries. We can perform tomography and microscopy studies by focusing down to ?m resolution using Nuclear Resonance Fluorescence (NRF) for detection with eV resolution and high spatial resolution at the same time. We discuss the dominating M1 and E1 excitations like the scissors mode, two-phonon quadrupole octupole excitations, pygmy dipole excitations or giant dipole excitations under the new facet of applications. We find many new applications in biomedicine, green energy, radioactive waste management or homeland security. Also more brilliant secondary beams of neutrons and positrons can be produced.

Habs, D.; Günther, M. M.; Jentschel, M.; Thirolf, P. G.

2012-07-01

117

Calculo estocastico aplicado a las finanzas: Precio de las opciones segun el modelo  

E-print Network

modelizaci´on muy general de los mercados financieros. Este trabajo ha sido financiado por el Ministerio de­Scholes­Merton, semimartingalas, integraci´on con semimar- tingalas, modelos financieros generales. 1. Introducci´on L. Bachelier no admite arbitrajes y es completo (se pueden replicar las opciones). Aparte de los resultados financieros

Ruiz, Jesús M.

118

Infraestructura para la mayor integración de las Américas. VI Cumbre de las Américas  

Microsoft Academic Search

Introducción. Promover la mayor integración física en las Américas tiene como objetivo desencadenar efectos cascada sobre la productividad, el comercio intrarregional y la inserción de los países en la economía mundial. La adecuación y expansión de la infraestructura regional, sub-regional y nacional como carreteras, ferrocarriles, puertos, aeropuertos y centrales de generación eléctrica tendrá un efecto positivo sobre la competitividad regional

Tito Yepes

2011-01-01

119

The Nuclear Power and Nuclear Weapons Connection.  

ERIC Educational Resources Information Center

Explains problems enforcing the Nuclear Non-Proliferation Treaty (NPT) of 1968. Provides factual charts and details concerning the production of nuclear energy and arms, the processing and disposal of waste products, and outlines the nuclear fuel cycle. Discusses safeguards, the risk of nuclear terrorism, and ways to deal with these problems. (NL)

Leventhal, Paul

1990-01-01

120

The Nuclear Power/Nuclear Weapons Connection.  

ERIC Educational Resources Information Center

Once they have nuclear power, most countries will divert nuclear materials from commercial to military programs. In excerpts from the book "Facing the Danger" (by Totten, S. and M. W., Crossing Press, 1984), five anti-nuclear activists explain how and why they have been addressing the nuclear connection. (RM)

Totten, Sam; Totten, Martha Wescoat

1985-01-01

121

Las Cumbres Observatory Global Telescope Network  

NSDL National Science Digital Library

Las Cumbres Observatory Global Telescope Network (LCOGTN) features a comprehensive science research program and an innovative astronomy-education program featuring state-of-the-art instructional materials appropriate for students at all levels, from elementary school through postsecondary. LCOGTN operates two research-class robotic telescopes, the Faulkes Telescope North, located in Maui, Hawaii, and the Faulkes Telescope South, located in Australia at Siding Spring Observatory. These telescopes are available to teachers to use as part of their curricular or extracurricular activities, and are supported by a range of educational materials and a team of educators and professional astronomers. Additional telescopes in Mississippi, Texas, California, and the United Kingdom will further broaden the Network's scope. Real-time observation and still images available.

Las Cumbres Observatory

2007-07-02

122

Nuclear reactor  

SciTech Connect

A nuclear reactor is described which comprises a reactor vessel, a core housed in the reactor vessel, an ultrasonic transducer mounted in the vicinity of the upper end of the core for emitting and receiving an ultrasonic wave pulse signal propagating above the core. A means is provided for rotating the transducer by a prescribed angle to scan horizontally the ultrasonic wave emitted from the transducer. A plurality of reflective means are mounted in the vicinity of the upper end of the core in a manner to face the transducer for reflecting the ultrasonic wave signal emitted from the transducer.

Furudate, M.; Miyazawa, T.; Mizuguchi, H.; Sasaki, K.; Uesugi, N.

1981-09-22

123

Nuclear reactor  

SciTech Connect

A nuclear reactor of the type which uses liquid metal as primary and secondary coolants, and wherein the reactor vessel contains a core and a plurality of vertically extending cylindrical intermediate heat exchangers for carrying out heat exchange between the primary and secondary coolants; primary coolant circulation pumps disposed outside of the reactor vessel; a pipe for conducting to the circulation pump the primary coolant which has passed through the intermediate heat exchangers after leaving the core; and a pipe for guiding the primary coolant discharged from the circulation pump to the core through the reactor vessel.

Sato, M.

1984-08-14

124

Las Vegas Basin Seismic Response Project: Preliminary Results From Seismic Refraction Experiments, Las Vegas, NV.  

NASA Astrophysics Data System (ADS)

In May and September 2002, seismic refraction data were acquired in the Las Vegas basin. Located in the southern Basin and Range province, the cities of Las Vegas, North Las Vegas, and Henderson sit atop a fault-bounded basin with a depth of up to 5 km and basin dimensions of roughly 60 km wide (east-west) by 50 km in length (north-south). Previous isostatic gravity, seismic reflection, and aeromagnetic studies indicate that a series of sub-basins exist beneath the unconsolidated basin fill, with the deepest sub-basin occurring 5 km west of the fault block bounding the eastern edge of the basin (Frenchman Mountain). The basin is significantly deeper along its northern extremity, following the path of the fault block bounding the northern edge of the basin (Las Vegas Valley Shear Zone), and along the western edge of Frenchman Mountain. Recent, paleoseismic studies have indicated that faults in the Las Vegas region have the potential for an earthquake of M6.5 to 7.0. It is estimated that a M6.9 earthquake in the basin could produce about 11 billion dollars in damage and a significant number of deaths and/or injuries. In addition, an equivalent or larger event in the Death Valley fault zone, 150 km distance, would also be devastating to the metropolitan area of approximately 1.5 million residents. Therefore, it is essential to understand the seismic hazard posed to the Las Vegas region. This project is part of a larger collaborative effort to characterize the basin and its response to ground shaking. The University of Nevada, Las Vegas with assistance from the University of Texas at El Paso, students from UNLV and UTEP, volunteers from the community and several students from Centennial High school deployed 432 portable seismic recorders ("Texans") throughout the valley. Shot point locations were located at three quarries in the valley, one to the north, one to the east and one to the southwest. The profiles cross the Las Vegas Valley Shear zone as well as a prominent NW/SE trending step in the basin floor across which the basement drops from 2 to 4 km in depth. In addition, the profiles cross several Quaternary fault scarps, which have recently been identified as tectonic in origin. Preliminary analyses of the seismic refraction data indicate that the basin has an average P-wave velocity of 4.5 km/s and is in agreement with the estimated basin depths from isostatic gravity studies (2 to 5 km depth). Both tomographic inversion and forward modeling techniques are being used to analyze these data. These data will be used to produce a velocity model of the basin and image the basin/bedrock contact. In addition, these data will be integrated into a community model, which is being produced by the Las Vegas Basin Seismic Response working group to further assess the site response of the basin.

Zaragoza, S. A.; Snelson, C. M.; Harder, S. H.; Kaip, G.; Luke, B.; Buck, B. J.; Hanson, A. D.

2002-12-01

125

Dictionary of nuclear engineering  

SciTech Connect

Ralf Sube, an experienced compiler of three wellknown four-language reference works has now prepared this glossary of nuclear engineering terms in English, German, French and Russian. Based on the proven lexicography of the Technik-Worterbuch series, it comprises about 30,000 terms in each language covering the following: Nuclear and Atomic Physics; Nuclear Radiation and Isotopes; Nuclear Materials; Nuclear Facilties; Nuclear Power Industry; Nuclear Weapons.

Sube, R.

1985-01-01

126

Japan's nuclear fuel cycle  

Microsoft Academic Search

Nuclear power is the largest single source of electrical power in Japan, providing a third of Japan's energy needs. Because of its lack of natural resources, Japan has long supported a nuclear power program with a special focus on recycling nuclear fuel. The first commercial spent nuclear fuel reprocessing plant is now under construction in Aomori Prefecture. Nuclear energy is

Atsuyuki Suzuki

1997-01-01

127

Nuclear Education Update.  

ERIC Educational Resources Information Center

Addresses the controversial issue of nuclear education in public schools. Highlights include resolutions passed by the National Congress of Parent Teacher Associations, what nuclear education is, distinction between nuclear education and education in the nuclear age, educational materials, a review of teaching materials, nuclear literacy, and…

Winter, Metta L.

1986-01-01

128

INSTRUCTIONS FOR SUBMITTING NUCLEAR  

E-print Network

waste management proceedings. Keywords Nuclear, nuclear power plant, spent fuel, nuclear waste, dataCALIFORNIA ENERGY COMMISSION INSTRUCTIONS FOR SUBMITTING NUCLEAR POWER PLANT-RELATED DATA of Submitted Data 3 NUCLEAR POWER PLANT DATA REQUESTS 6 A. Environmental Impacts 6 B. Spent Fuel Generation 8 C

129

Nuclear Waste Disposal  

Microsoft Academic Search

Nuclear wastes are by-products of nuclear weapons production and nuclear power generation, plus residuals of radioactive materials used by industry, medicine, agriculture, and academia. Their distinctive nature and potential hazard make nuclear wastes not only the most dangerous waste ever created by mankind, but also one of the most controversial and regulated with respect to disposal. Nuclear waste issues, related

Glendon W. Gee; Philip D. Meyer; Andy L. Ward

2005-01-01

130

Objections to nuclear defence  

Microsoft Academic Search

This book presents papers on nuclear deterrence. Topics considered include nuclear warfare, nuclear deterrence and the use of the just war doctrine, political aspects, human survival, moral aspects, the nuclear arms race, the ideology of nuclear deterrence, arms control, proliferation, and public opinion.

N. Blake; K. Pole

1984-01-01

131

Nuclear "waffles"  

NASA Astrophysics Data System (ADS)

Background: The dense neutron-rich matter found in supernovae and inside neutron stars is expected to form complex nonuniform phases, often referred to as nuclear pasta. The pasta shapes depend on density, temperature and proton fraction and determine many transport properties in supernovae and neutron star crusts. Purpose: To characterize the topology and compute two observables, the radial distribution function (RDF) g (r ) and the structure factor S (q ) , for systems with proton fractions Yp=0.10 ,0.20 ,0.30 , and 0.40 at about one-third of nuclear saturation density, n =0.050 fm-3 , and temperatures near k T =1 MeV . Methods: We use two recently developed hybrid CPU/GPU codes to perform large scale molecular dynamics (MD) simulations with 51 200 and 409 600 nucleons. From the output of the MD simulations we obtain the two desired observables. Results: We compute and discuss the differences in topology and observables for each simulation. We observe that the two lowest proton fraction systems simulated, Yp=0.10 and 0.20 , equilibrate quickly and form liquidlike structures. Meanwhile, the two higher proton fraction systems, Yp=0.30 and 0.40 , take a longer time to equilibrate and organize themselves in solidlike periodic structures. Furthermore, the Yp=0.40 system is made up of slabs, lasagna phase, interconnected by defects while the Yp=0.30 systems consist of a stack of perforated plates, the nuclear waffle phase. Conclusions: The periodic configurations observed in our MD simulations for proton fractions Yp?0.30 have important consequences for the structure factors S (q ) of protons and neutrons, which relate to many transport properties of supernovae and neutron star crust. A detailed study of the waffle phase and how its structure depends on temperature, size of the simulation, and the screening length showed that finite-size effects appear to be under control and, also, that the plates in the waffle phase merge at temperatures slightly above 1.0 MeV and the holes in the plates form a hexagonal lattice at temperatures slightly lower than 1.0 MeV .

Schneider, A. S.; Berry, D. K.; Briggs, C. M.; Caplan, M. E.; Horowitz, C. J.

2014-11-01

132

77 FR 77090 - Notice of Public Meeting, Las Cruces District Resource Advisory Council Meeting, New Mexico  

Federal Register 2010, 2011, 2012, 2013, 2014

...the BLM Las Cruces District Office, 1800 Marquess Street, Las Cruces, NM 88005. FOR FURTHER INFORMATION CONTACT: Rena Gutierrez, BLM Las Cruces District, 1800 Marquess Street, Las Cruces, NM, 88005, 575-525-4338. Persons who use a...

2012-12-31

133

78 FR 65356 - Notice of Public Meeting, Las Cruces District Resource Advisory Council Meeting, New Mexico  

Federal Register 2010, 2011, 2012, 2013, 2014

...the BLM Las Cruces District Office, 1800 Marquess Street, Las Cruces, NM 88005. FOR FURTHER INFORMATION CONTACT: Rena Gutierrez, BLM Las Cruces District, 1800 Marquess Street, Las Cruces, NM, 88005, 575-525-4338. Persons who use a...

2013-10-31

134

Relevamiento de HI en las Nubes de Magallanes  

NASA Astrophysics Data System (ADS)

El relevamiento de HI en el hemisferio sur, que se está realizando desde el IAR con el nuevo receptor enfriado, abarca, en su rango de velocidades, las velocidades desplegadas por el hidrógeno neutro de las Nubes de Magallanes. Esto permite obtener los perfiles de velocidad correspondientes a estas galaxias con una sensibilidad y una completitud de grilla excepcionales para el estudio de la distribución y de la cinemática del gas a gran escala y con una resolución angular de 30' y una resolución en velocidad de 1 km/s. Estas condiciones permiten el estudio de los campos de velocidad, de las componentes múltiples en velocidad, de las asimetrías, concentraciones y burbujas en la distribución del gas, los puentes entre las Nubes y entre las Nubes y la Galaxia, etc. Estas características son de particular importancia para su correlación con los mapas obtenidos con las emisiones en el radio-continuo, el IR y el CO (relacionable con el hidrógeno molecular) todas las cuales permiten el estudio de la dinámica de las Nubes y su relación con la Galaxia, de la formación y evolución estelar y de la evolución de la Nubes mismas.

Bajaja, E.; Morras, R.; Arnal, E. M.; Pöppel, W. G. L.

135

Nuclear Heart Scan  

MedlinePLUS

... from the NHLBI on Twitter. What Is a Nuclear Heart Scan? A nuclear heart scan is a test that provides important ... use it to create pictures of your heart. Nuclear heart scans are used for three main purposes: ...

136

Nuclear Stress Test  

MedlinePLUS

... rest (left) and during exercise (right) from a nuclear stress test. A nuclear stress test lets doctors see pictures of your ... the heart has any damaged or dead muscle. Nuclear stress tests can also give doctors information about ...

137

Nuclear thermal/nuclear electric hybrids  

NASA Technical Reports Server (NTRS)

A description is given of the nuclear thermal and nuclear electric hybrid. The specifications are described along with its mission performance. Next, the technical status, development requirements, and some cost estimates are provided.

Reid, B. D.

1991-01-01

138

Nuclear Fuel Cycle & Vulnerabilities  

SciTech Connect

The objective of safeguards is the timely detection of diversion of significant quantities of nuclear material from peaceful nuclear activities to the manufacture of nuclear weapons or of other nuclear explosive devices or for purposes unknown, and deterrence of such diversion by the risk of early detection. The safeguards system should be designed to provide credible assurances that there has been no diversion of declared nuclear material and no undeclared nuclear material and activities.

Boyer, Brian D. [Los Alamos National Laboratory

2012-06-18

139

Nuclear weapons modernizations  

SciTech Connect

This article reviews the nuclear weapons modernization programs underway in the world's nine nuclear weapons states. It concludes that despite significant reductions in overall weapons inventories since the end of the Cold War, the pace of reductions is slowing - four of the nuclear weapons states are even increasing their arsenals, and all the nuclear weapons states are busy modernizing their remaining arsenals in what appears to be a dynamic and counterproductive nuclear competition. The author questions whether perpetual modernization combined with no specific plan for the elimination of nuclear weapons is consistent with the nuclear Non-Proliferation Treaty and concludes that new limits on nuclear modernizations are needed.

Kristensen, Hans M. [Federation of American Scientists, Washington, DC (United States)

2014-05-09

140

Focused technology: Nuclear propulsion  

NASA Technical Reports Server (NTRS)

Five viewgraphs are presented that outline the objectives and elements of the Nuclear Propulsion Program, mission considerations, propulsion technologies, and the logic flow path for nuclear propulsion development.

Miller, Thomas J.

1993-01-01

141

Nuclear weapons modernizations  

NASA Astrophysics Data System (ADS)

This article reviews the nuclear weapons modernization programs underway in the world's nine nuclear weapons states. It concludes that despite significant reductions in overall weapons inventories since the end of the Cold War, the pace of reductions is slowing - four of the nuclear weapons states are even increasing their arsenals, and all the nuclear weapons states are busy modernizing their remaining arsenals in what appears to be a dynamic and counterproductive nuclear competition. The author questions whether perpetual modernization combined with no specific plan for the elimination of nuclear weapons is consistent with the nuclear Non-Proliferation Treaty and concludes that new limits on nuclear modernizations are needed.

Kristensen, Hans M.

2014-05-01

142

Compact Groups of Galaxies in the Las Campanas Redshift Survey  

Microsoft Academic Search

We have recently extracted a catalog of compact groups of galaxies (CGs) from the Las Campanas Redshift Survey. This catalog of Las Campanas Compact Groups (LCCGs) contains 76 CGs with a median redshift of z_med ~ 0.08. The physical properties of these CGs are similar to those from the Hickson (1982) and the Barton et al. (1996) catalogs. Here, we

S. S. Allam; D. L. Tucker

2000-01-01

143

Fingerprint Indexing Based on LAS Registration , Chao Zhang1  

E-print Network

Fingerprint Indexing Based on LAS Registration Tong Liu1 , Chao Zhang1 and Pengwei Hao1,2 1 Fingerprint indexing is an efficient technique that greatly improves the performance of fingerprint based method based on fingerprint registration with a novel feature called local axial symmetry (LAS

Hao, Pengwei

144

LAS NUEVAS TECNOLOGÍAS PARA EL APOYO DE LOS PROCESOS EDUCATIVOS  

Microsoft Academic Search

Con ánimo y necesidad crecientes, un mayor número de instituciones educativas están destinando recursos a la creación de instancias que estudien las formas en que las nuevas tecnologías de información y comunicación podrán emplearse como vehículo de mediaciones educativas. Estos estudios cuentan ya con una historia de poco más de 40 años y los usos y aplicaciones de estas herramientas

Francisco Morfín

145

Integración de la enseñanza de las tic en la educación  

Microsoft Academic Search

En el contexto de integración de la enseñanza de las TIC en la educación se adquieren trascendencia y fuertes implicaciones hacia el futuro y en particular con la enseñanza de la Informática, lo que constituye un espacio que cristaliza las múltiples facetas del desarrollo social en aras de alcanzar la formación integral de niños, adolescentes y jóvenes con el apoyo

Osmany Aguilera Almaguer; Madelín Aguilera Borja; Eduardo Peña Cruz

2011-01-01

146

Calidad del aire interior y salud en las viviendas  

E-print Network

Calidad del aire interior y salud en las viviendas temporales de FEMA A los residentes de los tráileres Los Centros para el Control y la Prevención de Enfermedades (CDC) responden a las preocupa ciones que usted pueda tener sobre la calidad del aire y el formaldehído en los tráileres de FEMA. Usted

147

Translational genomics of Vegetable Crops Las Vegas, NV  

E-print Network

Translational genomics of Vegetable Crops Las Vegas, NV July 21, 2005 David Francis and Allen Van Deynze At the recent ASHS meetings in Las Vegas, a workshop "Translational Genomics of Vegetable Crops interventions" (Minna and Gazdar, 1996). In applied plant science, "translational genomics" implies

Douches, David S.

148

EL TURISMO ELECTRÓNICO, UNA NECESIDAD PARA LAS EMPRESAS DEL SECTOR  

Microsoft Academic Search

La importancia y la necesidad de la utilización del Comercio Electrónico en la industria turística ayuda a mejorar las operaciones tradicionales practicadas en los negocios, tanto en la estrategia empresarial como en la reingeniería del negocio turístico. El hecho de que predominen las pequeñas y medianas empresas en el sector implica que la utilización del e-Commerce no se ha extendido

Ernesto Manuel Conde Pérez; Nel Enrique Cristian Schmidt Cornejo; Ileana Ochoa Llamas

2011-01-01

149

Chasing Pokemon - in pursuit of the LAS ideal  

Microsoft Academic Search

A 'remembered' moment from a lecture given by James Gee (2000) at the University of the Witwatersrand in which he compared the infinite possibilities of creating Pokemons to the infinite options for Language and Academic Skills (LAS) units became the catalyst for an interrogation of my current LAS model. Does it, in fact, promote 'equity of access and … enhance

Chris Orsmond

150

Impacto de las tic en la enseñanza universitaria  

Microsoft Academic Search

Dividido en dos partes, el presente artículo intenta plantearnos el presente, pasado y futuro de la implantación de las TIC en la universidad. Siendo conscientes de la inmersión progresiva de la cultura de la información, debemos tener claro que no todas las instituciones avanzan de la misma manera. De tal forma que se hace necesaria, si no obligatoria, una adaptación

Pere Marquès Graells

2008-01-01

151

Trazabilidad y Unificación de las escalas de Dureza en México  

Microsoft Academic Search

Resumen. Las mediciones de dureza desempeñan un papel importante en la determinación de las características mecánicas de un material y, es frecuente que estos resultados se tomen como base para la aceptación o rechazo de piezas terminadas. Ante la diversidad de métodos, escalas, penetradores, fuerzas aplicadas y tiempos de prueba no se tiene una definición completa en la magnitud de

Alfredo Esparza Ramírez

152

Determinantes de las importaciones en Colombia: un análisis econométrico  

Microsoft Academic Search

El presente trabajo tiene el propósito de estudiar algunos aspectos relacionados con la evolución de las importaciones colombianas y con los vínculos de dicha evolución con la formación de capital, con la acumulación de inventarios de las empresas y con la producción industrial. Los análisis se realizan mediante estimaciones econométricas, utilizando variantes de funciones tradicionales de demanda de importaciones; esto

Leonardo Villar

1985-01-01

153

University of Nevada, Las Vegas Faculty Senate Constitution  

E-print Network

of Nevada and the United States. Section 2. Membership All academic faculty and professional staff who holdUniversity of Nevada, Las Vegas Faculty Senate Constitution Revised January 2009 Section 1 of Nevada, Las Vegas; the Nevada System of Higher Education Code; and the laws and the statutes of the State

Hemmers, Oliver

154

NIU 2014 LA&S Summer Academic Camps APPLICATION FORM  

E-print Network

NIU 2014 LA&S Summer Academic Camps APPLICATION FORM (Submit a separate form for each camper.niu.edu/disability; participants are responsible for any non-credit accommodation charges.) #12;NIU 2014 LA&S Summer Academic Camps all the materials; see the checklist on page 2. I will be attending: Creative Writing Camp Speech Camp

Kostic, Milivoje M.

155

The Arabidopsis Nuclear Pore and Nuclear Envelope  

PubMed Central

The nuclear envelope is a double membrane structure that separates the eukaryotic cytoplasm from the nucleoplasm. The nuclear pores embedded in the nuclear envelope are the sole gateways for macromolecular trafficking in and out of the nucleus. The nuclear pore complexes assembled at the nuclear pores are large protein conglomerates composed of multiple units of about 30 different nucleoporins. Proteins and RNAs traffic through the nuclear pore complexes, enabled by the interacting activities of nuclear transport receptors, nucleoporins, and elements of the Ran GTPase cycle. In addition to directional and possibly selective protein and RNA nuclear import and export, the nuclear pore gains increasing prominence as a spatial organizer of cellular processes, such as sumoylation and desumoylation. Individual nucleoporins and whole nuclear pore subcomplexes traffic to specific mitotic locations and have mitotic functions, for example at the kinetochores, in spindle assembly, and in conjunction with the checkpoints. Mutants of nucleoporin genes and genes of nuclear transport components lead to a wide array of defects from human diseases to compromised plant defense responses. The nuclear envelope acts as a repository of calcium, and its inner membrane is populated by functionally unique proteins connected to both chromatin and—through the nuclear envelope lumen—the cytoplasmic cytoskeleton. Plant nuclear pore and nuclear envelope research—predominantly focusing on Arabidopsis as a model—is discovering both similarities and surprisingly unique aspects compared to the more mature model systems. This chapter gives an overview of our current knowledge in the field and of exciting areas awaiting further exploration. PMID:22303264

Meier, Iris; Brkljacic, Jelena

2010-01-01

156

Nuclear reactor  

DOEpatents

A nuclear reactor comprising a cylindrical pressure vessel, an elongated annular core centrally disposed within and spaced from the pressure vessel, and a plurality of ducts disposed longitudinally of the pressure vessel about the periphery thereof, said core comprising an annular active portion, an annular reflector just inside the active portion, and an annular reflector just outside the active a portion, said annular active portion comprising rectangular slab, porous fuel elements radially disposed around the inner reflector and extending the length of the active portion, wedge-shaped, porous moderator elements disposed adjacent one face of each fuel element and extending the length of the fuel element, the fuel and moderator elements being oriented so that the fuel elements face each other and the moderator elements do likewise, adjacent moderator elements being spaced to provide air inlet channels, and adjacent fuel elements being spaced to provide air outlet channels which communicate with the interior of the peripheral ducts, and means for introducing air into the air inlet channels which passes through the porous moderator elements and porous fuel elements to the outlet channel.

Thomson, Wallace B. (Severna Park, MD)

2004-03-16

157

Nuclear Power in China  

NASA Astrophysics Data System (ADS)

In response to the Fukushima accident, China is strengthening its nuclear safety at reactors in operation, under construction and in preparation, including efforts to improve nuclear safety regulations and guidelines based on lessons learned from the accident. Although China is one of the major contributors in the global nuclear expansion, China's nuclear power industry is relatively young. Its nuclear safety regulators are less experienced compared to those in other major nuclear power countries. To realize China's resolute commitment to rapid growth of safe nuclear energy, detailed analyses of its nuclear safety regulatory system are required. This talk explains China's nuclear energy program and policy at first. It also explores China's governmental activities and future nuclear development after Fukushima accidents. At last, an overview of China's nuclear safety regulations and practices are provided. Issues and challenges are also identified for police makers, regulators, and industry professionals.

Zhou, Yun

2012-02-01

158

LA CONSTRUCCIÓN DE LA ARQUITECTURA ORGANIZATIVA EN LAS ENTIDADES SIN FINES DE LUCRO. EL CASO DE LAS ONGD EN ESPAÑA  

Microsoft Academic Search

El objetivo del presente trabajo es valorar el equilibrio de las fuerzas organizativas en la construcción de una arquitectura organizativa eficiente y, todo ello, bajo un enfoque de agencia. Los resultados del análisis empírico, llevado a cabo en las más importantes ONGD españolas durante el año 2003, ponen de relieve la gran importancia de la influencia mutua de la delegación

V. Martín Pérez; N. Martín Cruz; J. Hernangómez Barahona

2008-01-01

159

LAS - LAND ANALYSIS SYSTEM, VERSION 5.0  

NASA Technical Reports Server (NTRS)

The Land Analysis System (LAS) is an image analysis system designed to manipulate and analyze digital data in raster format and provide the user with a wide spectrum of functions and statistical tools for analysis. LAS offers these features under VMS with optional image display capabilities for IVAS and other display devices as well as the X-Windows environment. LAS provides a flexible framework for algorithm development as well as for the processing and analysis of image data. Users may choose between mouse-driven commands or the traditional command line input mode. LAS functions include supervised and unsupervised image classification, film product generation, geometric registration, image repair, radiometric correction and image statistical analysis. Data files accepted by LAS include formats such as Multi-Spectral Scanner (MSS), Thematic Mapper (TM) and Advanced Very High Resolution Radiometer (AVHRR). The enhanced geometric registration package now includes both image to image and map to map transformations. The over 200 LAS functions fall into image processing scenario categories which include: arithmetic and logical functions, data transformations, fourier transforms, geometric registration, hard copy output, image restoration, intensity transformation, multispectral and statistical analysis, file transfer, tape profiling and file management among others. Internal improvements to the LAS code have eliminated the VAX VMS dependencies and improved overall system performance. The maximum LAS image size has been increased to 20,000 lines by 20,000 samples with a maximum of 256 bands per image. The catalog management system used in earlier versions of LAS has been replaced by a more streamlined and maintenance-free method of file management. This system is not dependent on VAX/VMS and relies on file naming conventions alone to allow the use of identical LAS file names on different operating systems. While the LAS code has been improved, the original capabilities of the system have been preserved. These include maintaining associated image history, session logging, and batch, asynchronous and interactive mode of operation. The LAS application programs are integrated under version 4.1 of an interface called the Transportable Applications Executive (TAE). TAE 4.1 has four modes of user interaction: menu, direct command, tutor (or help), and dynamic tutor. In addition TAE 4.1 allows the operation of LAS functions using mouse-driven commands under the TAE-Facelift environment provided with TAE 4.1. These modes of operation allow users, from the beginner to the expert, to exercise specific application options. LAS is written in C-language and FORTRAN 77 for use with DEC VAX computers running VMS with approximately 16Mb of physical memory. This program runs under TAE 4.1. Since TAE 4.1 is not a current version of TAE, TAE 4.1 is included within the LAS distribution. Approximately 130,000 blocks (65Mb) of disk storage space are necessary to store the source code and files generated by the installation procedure for LAS and 44,000 blocks (22Mb) of disk storage space are necessary for TAE 4.1 installation. The only other dependencies for LAS are the subroutine libraries for the specific display device(s) that will be used with LAS/DMS (e.g. X-Windows and/or IVAS). The standard distribution medium for LAS is a set of two 9track 6250 BPI magnetic tapes in DEC VAX BACKUP format. It is also available on a set of two TK50 tape cartridges in DEC VAX BACKUP format. This program was developed in 1986 and last updated in 1992.

Pease, P. B.

1994-01-01

160

US nuclear weapons policy  

Microsoft Academic Search

We are closing chapter one'' of the nuclear age. Whatever happens to the Soviet Union and to Europe, some of the major determinants of nuclear policy will not be what they have been for the last forty-five years. Part of the task for US nuclear weapons policy is to adapt its nuclear forces and the oganizations managing them to the

1990-01-01

161

Nuclear Magnetic Resonance  

NASA Astrophysics Data System (ADS)

Author's preface; 1. Introduction; 2. Basic theory; 3. Experimental methods; 4. Measurement of nuclear properties and general physical applications; 5. Nuclear magnetic resonance in liquids and gases; 6. Nuclear magnetic resonance in non-metallic solids; 7. Nuclear magnetic resonance in metals; 8. Quadrupole effects; Appendices 1-6; Glossary of symbols; Bibliography and author index; Subject index.

Andrew, E. R.

2009-06-01

162

Nuclear Science & Engineering  

E-print Network

. 1 Nuclear Science & Engineering Nuclear Energy Present and Future Ian H. Hutchinson Head, Department of Nuclear Science and Engineering CoPrincipal, Alcator Tokamak Project, Plasma Science and Fusion Science & Engineering Nuclear Power Plants Worldwide · US: 103 plants in operation, none under

163

Nuclear energy and security  

SciTech Connect

Nuclear power is an important and, the authors believe, essential component of a secure nuclear future. Although nuclear fuel cycles create materials that have some potential for use in nuclear weapons, with appropriate fuel cycles, nuclear power could reduce rather than increase real proliferation risk worldwide. Future fuel cycles could be designed to avoid plutonium production, generate minimal amounts of plutonium in proliferation-resistant amounts or configurations, and/or transparently and efficiently consume plutonium already created. Furthermore, a strong and viable US nuclear infrastructure, of which nuclear power is a large element, is essential if the US is to maintain a leadership or even participatory role in defining the global nuclear infrastructure and controlling the proliferation of nuclear weapons. By focusing on new fuel cycles and new reactor technologies, it is possible to advantageously burn and reduce nuclear materials that could be used for nuclear weapons rather than increase and/or dispose of these materials. Thus, the authors suggest that planners for a secure nuclear future use technology to design an ideal future. In this future, nuclear power creates large amounts of virtually atmospherically clean energy while significantly lowering the threat of proliferation through the thoughtful use, physical security, and agreed-upon transparency of nuclear materials. The authors must develop options for policy makers that bring them as close as practical to this ideal. Just as Atoms for Peace became the ideal for the first nuclear century, they see a potential nuclear future that contributes significantly to power for peace and prosperity.

BLEJWAS,THOMAS E.; SANDERS,THOMAS L.; EAGAN,ROBERT J.; BAKER,ARNOLD B.

2000-01-01

164

Nuclear Reaction Data Centers  

SciTech Connect

The cooperating Nuclear Reaction Data Centers are involved in the compilation and exchange of nuclear reaction data for incident neutrons, charged particles and photons. Individual centers may also have services in other areas, e.g., evaluated data, nuclear structure and decay data, reactor physics, nuclear safety; some of this information may also be exchanged between interested centers. 20 refs., 1 tab.

McLane, V.; Nordborg, C.; Lemmel, H.D.; Manokhin, V.N.

1988-01-01

165

Nuclear Smuggling Incidents  

NSDL National Science Digital Library

Since the early 1990s, there have been numerous reports of illicit trafficking in many types of nuclear materials worldwide. According to IAEA, nuclear materials include nuclear source material, such as natural uranium, depleted uranium, thorium, plutonium, and uranium enriched in the isotopes U-233 or U-235. This section explores how nuclear materials have been smuggled around the world.

Christopher Griffith

166

Nuclear collective dynamics  

Microsoft Academic Search

Topics discussed in this International Summer School of Nuclear Physics include time dependent and Hartree-Fock methods in quantum mechanics and nuclear models; angular momentum, high spin states, giant resonance, nuclear deformation, collective model and excitations; nuclear molecules; heavy ion reactions; fission reactions; and inertial confinement.

D. Bucurescu; V. Ceausescu; N. V. Zamfir

1983-01-01

167

Nuclear air cushion vehicles  

NASA Technical Reports Server (NTRS)

The state-of-the-art of the still-conceptual nuclear air cushion vehicle, particularly the nuclear powerplant is identified. Using mission studies and cost estimates, some of the advantages of nuclear power for large air cushion vehicles are described. The technology studies on mobile nuclear powerplants and conceptual ACV systems/missions studies are summarized.

Anderson, J. L.

1973-01-01

168

Topics in Nuclear Astrophysics  

SciTech Connect

We will discuss the basic ideas regarding nuclear processes occurring in stars. We start from stellar observations, will then elaborate on important quantum-mechanical phenomena governing nuclear reactions, continue with how nuclear reactions proceed in a hot stellar plasma and, finally, we will provide an overview of stellar burning stages. This lecture is directed towards the student of nuclear astrophysics.

Iliadis, Christian [Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27599 (United States)

2010-11-24

169

Revitalizing Nuclear Safety Research.  

ERIC Educational Resources Information Center

This report covers the general issues involved in nuclear safety research and points out the areas needing detailed consideration. Topics included are: (1) "Principles of Nuclear Safety Research" (examining who should fund, who should conduct, and who should set the agenda for nuclear safety research); (2) "Elements of a Future Agenda for Nuclear…

National Academy of Sciences - National Research Council, Washington, DC.

170

The New Nuclear Nations.  

ERIC Educational Resources Information Center

Explores the issue of nuclear proliferation, noting that the countries with nuclear capability now include Israel, South Africa, India, and Pakistan. Describes the role and problems of the United States in halting nuclearization. Supplies charts, maps, and information concerning the state of nuclear capability in each country. (NL)

Spector, Leonard S.

1990-01-01

171

Terrorists and Nuclear Technology  

ERIC Educational Resources Information Center

This essay explores the ways terrorist groups may gain possession of nuclear materials; the way in which they may use nuclear weapons and other nuclear technologies to their benefit; and various courses of action designed to minimize the possibilities of terrorists utilizing nuclear technology to their benefit and society's detriment. (BT)

Krieger, David

1975-01-01

172

El fenotipo de las mucinas en el esófago de Barrett  

PubMed Central

Antecedentes El esófago de Barrett es una reconocida lesión precursora de adenocarcinoma esofágico. Aunque generalmente asociada al reflujo gastroesofágico, los mecanismos patogénicos de la enfermedad no son bien conocidos. El objetivo del presente estudio es explorar la historia natural e identificar marcadores de progreso del proceso precanceroso. Material y métodos Se utilizaron cortes histológicos de 67 especímenes de esófago correspondientes a 14 pacientes con esófago de Barrett, a los que se siguió entre 1 – 9 años. Se clasificaron las lesiones en: esófago de Barrett sin displasia, indefinido para displasia o con displasia. Se evaluó la expresión de diferentes mucinas en las células caliciformes y en las columnares usando técnicas de histoquímica e inmunohistoquímica. Resultados En todos los casos se comprobó la presencia de metaplasia intestinal incompleta. Las células columnares dentro del epitelio metaplásico contenían mucinas neutras. A mayor severidad de la lesión se encontró significativamente menor expresión de sialomucinas en las células columnares (p de tendencia igual a 0,03). En sujetos con lesiones indefinidas para displasia se observó un mayor contenido de sulfomucinas en las células caliciformes (p=0,034) y de MUC2 en las células columnares (p=0,029) que en sujetos con esófago de Barrett sin displasia. Se observó expresión de la mucina intestinal MUC2 y de la mucina gástrica MUC5AC en todas las muestras. MUC6, una mucina de las glándulas profundas gástricas, se presentó ocasionalmente. Conclusión La evaluación de los perfiles de mucinas en el esófago de Barrett sugiere una transición gradual del fenotipo del epitelio metaplásico a medida que la lesión avanza en el tiempo. PMID:21804831

Torrado, Julio; Piazuelo, María Blanca; Ruiz, Irune; Izarzugaza, María Isabel; Camargo, María Constanza; Delgado, Alberto; Abdirad, Afshin; Correa, Pelayo

2011-01-01

173

Airborne Validation of Active CO2 LAS Measurements  

NASA Astrophysics Data System (ADS)

A unique, multi-frequency, single-beam, laser absorption spectrometer (LAS) that operates at 1.57 ?m has been developed for a future space-based mission to determine the global distribution of sources and sinks of atmospheric carbon dioxide (CO2). A prototype of the space-based LAS system was developed by ITT, and it has been successfully flight tested in seven airborne campaigns conducted in different geographic regions over the last four years. Flight tests were conducted over Oklahoma, Michigan, New Hampshire, and Virginia under a wide range of atmospheric conditions. Remote LAS measurements were compared to high-quality in situ measurements obtained from instrumentation on the same aircraft on spirals under the ground track of the LAS. LAS flights were conducted over a wide range of land and water reflectances and in the presence of scattered clouds. An extensive data set of CO2 measurements has been obtained for evaluating the LAS performance. These LAS test flights resulted in the first demonstration of high-precision, high-accuracy, remote laser measurements of CO2 from an airborne platform. The LAS CO2 column measurements were found to have a precision for a 10-s horizontal average (~1 km) of better than 1 ppm of CO2 over land and 1.3 ppm over water. Absolute comparisons of CO2 remote and in situ measurements showed agreement on average to better than 0.5 ppm of CO2 with a standard deviation of the agreement to better than 2 ppm of CO2. In addition, results of recent coordinated aircraft flight tests of different CO2 LAS systems and different in situ CO2 measurement systems over Oklahoma and Virginia in July-August 2009 are also discussed in this paper.

Browell, E. V.; Dobler, J.; Kooi, S.; Choi, Y.; Harrison, F.; Moore, B.; Zaccheo, T.

2009-12-01

174

Controlling nuclear proliferation  

Microsoft Academic Search

Nuclear non-proliferation policy depends on the 1968 Non-Proliferation Treaty, in which countries promise not to acquire nuclear weapons in exchange for open access to peaceful nuclear technology, and a system of international safeguards that are imposed on exported nuclear equipment and facilities operated by parties to the treaty. Critics have feared all along that non-nuclear countries might circumvent or exploit

1981-01-01

175

The Land Analysis System (LAS) for multispectral image processing  

USGS Publications Warehouse

The Land Analysis System (LAS) is an interactive software system available in the public domain for the analysis, display, and management of multispectral and other digital image data. LAS provides over 240 applications functions and utilities, a flexible user interface, complete online and hard-copy documentation, extensive image-data file management, reformatting, conversion utilities, and high-level device independent access to image display hardware. The authors summarize the capabilities of the current release of LAS (version 4.0) and discuss plans for future development. Particular emphasis is given to the issue of system portability and the importance of removing and/or isolating hardware and software dependencies.

Wharton, S. W.; Lu, Y. C.; Quirk, Bruce K.; Oleson, Lyndon R.; Newcomer, J. A.; Irani, Frederick M.

1988-01-01

176

Wintertime aerosol in Las Vegas, Nevada  

NASA Astrophysics Data System (ADS)

Numerous studies have found adverse health effects in subjects who live next to major roadways due to air pollution; in particular, there can be severe impacts on lung function and development in children living and/or attending school next to major roadways due to their exposure to air pollutants, including particulate matter (PM) or aerosol. The composition of aerosol at an elementary school next to a major freeway in Las Vegas, Nevada during winter 2008 was measured using a suite of measurements. An Aerodyne High Resolution Aerosol Mass Spectrometer (HR-AMS) was used to quantify the composition of non-refractory PM1 aerosol, including organic matter (OM); an Aethalometer was used to quantify black carbon (BC); a Sunset OCEC analyzer was used to measure organic and elemental carbon (OC, EC); and a particle-into-liquid system (PILS) coupled to two ion chromatographs (IC) was used to measure fine particle ions. Hi-volume PM2.5 samplers were used to collect aerosol on quartz fiber filters at between 2 and 24 hour intervals during the study, a subset of which were analyzed for PAHs and the biomass burning tracer levoglucosan. Data were analyzed by positive matrix factorization (PMF) to determine the amount of fresh, hydrocarbon-like organic aerosol (HOA), more oxidized OA (low-volatility and semi-volatile OA [LV-OOA, SV-OOA]) and biomass burning OA (BBOA). PM1 aerosol was predominantly carbonaceous, with OM plus BC accounting for 74% of the overall average 6.9 mug/m3 of PM measured. BC had a diurnal pattern similar to traffic volume, while OM was higher in the evening compared to the morning. OM was a mixture of fresh HOA, urban- and regional-scale OOA, and BBOA; in the evening, SV-OOA and BBOA peaked, while HOA concentrations were on average the same in the morning and evening, similar to BC. OM/OC ratios were low (1.52 +/-0.14 on average) during the morning rush hour (average OM = 2.4 mug/m3) when vehicular emissions dominate this near-road measurement site, and even lower (1.46 +/- 0.10) in the evening (average OM=6.3 mug/m3), when a combination of vehicular and fresh residential biomass burning emissions was typically present during a period characterized by strong atmospheric stability. While nitrate and sulfate had size distributions typical of secondary species with a sharp peak in particle diameter between 400 nm and 500 nm, OM had a broader distribution between 100 nm and 400 nm diameter particles, reflecting its combination of fresh, smaller particles and aged, larger particles. OM concentrations were on average similar between periods when the sampling site was upwind and downwind of the freeway, though during the morning OM concentrations were higher under downwind conditions, as was the fraction of HOA.

Brown, Steven G.

177

Evolution of Nuclear Spectra with Nuclear Forces  

E-print Network

We first define a series of NN interaction models ranging from very simple to fully realistic. We then present Green's function Monte Carlo calculations of light nuclei to show how nuclear spectra evolve as the nuclear forces are made increasingly sophisticated. We find that the absence of stable five- and eight-body nuclei depends crucially on the spin, isospin, and tensor components of the nuclear force.

R. B. Wiringa; Steven C. Pieper

2002-07-16

178

An Aerial Radiological Survey of Selected Areas of the City of North Las Vegas  

SciTech Connect

As part of the proficiency training for the Radiological Mapping mission of the Aerial Measuring System (AMS), a survey team from the Remote Sensing Laboratory-Nellis (RSL-Nellis) conducted an aerial radiological survey of selected areas of the city of North Las Vegas for the purpose of mapping natural radiation background and locating any man-made radioactive sources. Survey areas were selected in collaboration with the City Manager's office and included four separate areas: (1) Las Vegas Motor Speedway (10.6 square miles); (2) North Las Vegas Downtown Area (9.2 square miles); (3) I-15 Industrial Corridor (7.4 square miles); and (4) Future site of University of Nevada Las Vegas campus (17.4 square miles). The survey was conducted in three phases: Phase 1 on December 11-12, 2007 (Areas 1 and 2), Phase 2 on February 28, 2008 (Area 3), and Phase 3 on March 19, 2008 (Area 4). The total completed survey covered a total of 44.6 square miles. The flight lines (without the turns) over the surveyed areas are presented in Figures 1, 2, 3, and 4. A total of eight 2.5-hour-long flights were performed at an altitude of 150 ft above ground level (AGL) with 300 feet of flight-line spacing. Water line and test line flights were conducted over the Lake Mead and Government Wash areas to ensure quality control of the data. The data were collected by the AMS data acquisition system (REDAR V) using an array of twelve 2-inch x 4-inch x 16-inch sodium iodide (NaI) detectors flown on-board a twin-engine Bell 412 helicopter. Data, in the form of gamma energy spectra, were collected continually (every second) over the course of the survey and were geo-referenced using a differential Global Positioning System. Collection of spectral data allows the system to distinguish between ordinary fluctuations in natural background radiation levels and the signature produced by man-made radioisotopes. Spectral data can also be used to identify specific radioactive isotopes. As a courtesy service, with the approval of the U.S. Department of Energy, National Nuclear Security Administration, Nevada Site Office, RSL-Nellis is providing this summary to the office of the Mayor of the City of North Las Vegas along with the gross-count-based exposure rate and man-made count contour maps and GIS shape files in electronic format on a compact disk.

Piotr Wasiolek

2008-06-01

179

Environmental behavior of linear alkylbenzene sulfonate (LAS) in aquatic ecosystem  

NASA Astrophysics Data System (ADS)

LAS degradation rate in Donghu Lake water under aerobic was much faster than under anaerobic condition. The half life of LAS in aerobic and anaerobic environment was 3.2 days and 57 days, respectively. The degradation rate at 25 27°C was approximately 20 times higher than that at 1.5 3.5 °C. In a laboratory model aquatic ecosystem, two stages of bioconcentration in fish, daphnia and snail were observed. The first stage, on second day exposure, resulted from accumulation of intact LAS, and the second stage, on 16th day exposure, was due to metabolites. The bioconcentration factor (BCF) of LAS was extremely low in the muscle of hybrid carp (0.64), but rather high (2485) in the gall bladder.

Zhang, Yongyuan; Tan, Yuyun; Korte, F.

1991-03-01

180

School of ALLIED HEALTH UNIVERSITY OF NEVADA, LAS VEGAS  

E-print Network

NURSING School of ALLIED HEALTH SCIENCES UNIVERSITY OF NEVADA, LAS VEGAS Schools of Nursing and Allied Health Sciences RESEAR CH #12;NURSING School of ALLIED HEALTH SCIENCES #12;NURSING School of ALLIED HEALTH SCIENCES Table of Contents Current Research

Hemmers, Oliver

181

Wastewater treatment in Las Vegas, Santa Barbara, Honduras  

E-print Network

The Municipality of Las Vegas, Honduras is located immediately to the west of Lake Yojoa, the largest inland lake in Honduras. Beginning in 2005, the Massachusetts Institute of Technology (MIT) began working with stakeholders ...

Hodge, Matthew M

2008-01-01

182

Las corporaciones autonomas regionales del caribe colombiano: Un analisis de sus finanzas y gobierno corporativo  

Microsoft Academic Search

Las Corporaciones Autónomas Regionales (car) y las Corporaciones de Desarrollo Sostenible (cds) son las instituciones encargadas de la protección del medio ambiente en Colombia. Este trabajo estudia el desempeño de las corporaciones que tienen jurisdicción sobre la Costa Caribe. En particular, examina sus principales fortalezas y limitaciones administrativas, y analiza si en sus presupuestos se reproducen las desigualdades regionales que

Joaquin Viloria de la Hoz

2011-01-01

183

An overview of the Land Analysis System (LAS)  

NASA Technical Reports Server (NTRS)

An outline covering the history, development methodology, and major hardware/software components of the Land Analysis System (LAS) is presented. System support services including the Transportable Applications Executive (TAE), Catalog Manager, history files, and applications services are briefly described along with the general functional capabilities of the 224 available applications programs. Example interface menus are given and desired enhancements to the LAS system are listed.

Lu, Yun-Chi

1986-01-01

184

Compact Groups of Galaxies in the Las Campanas Redshift Survey  

E-print Network

We have recently extracted a catalog of compact groups of galaxies (CGs) from the Las Campanas Redshift Survey. This catalog of Las Campanas Compact Groups (LCCGs) contains 76 CGs with a median redshift of z_med = 0.08. The physical properties of these CGs are similar to those from the Hickson (1982) and the Barton et al. (1996) catalogs. Here, we present an atlas of our catalog and briefly describe its general properties.

S. S. Allam; D. L. Tucker

2000-06-12

185

LAS VEGAS--A SHOWCASE FOR AUTOMATED PEOPLE MOVER TECHNOLOGY  

Microsoft Academic Search

It is not widely known, but Las Vegas, Nevada, is home to a relatively large number of small scale Automated People Mover (APM) systems that serve the internal site-circulation needs of resorts. In fact, Las Vegas may be considered the birthplace of contemporary, low-cost, cable-propelled systems designed specifically to serve urban needs in North America. The distinctive feature of a

E S Neumann

1999-01-01

186

Las neuronas de la conciencia Rodrigo Quian Quiroga  

E-print Network

: Neurociencia, Psicología. Etiquetas: conciencia, células de la abuela, percepción visual, neurofisiología. El una de las preguntas más interesantes en neurociencia: ¿cómo codifican las neuronas en el cerebro todo más instruido en neurociencia, ¡es fascinante! El mismo Crick no se limitó solamente a tratar de

187

Las últimas obras de Usigli: Efebocracia o gerontocracia.  

E-print Network

FALL 1974 45 Las últimas obras de Usigli: Efebocracia o gerontocracia? ÁSELA RODRÍGUEZ-SEDA Las promociones más recientes de autores teatrales mexicanos le han objetado a Rodolfo Usigli la creación de lo que ellos consideran un teatro viejo y... reprocharle su comportamiento por haber abandonado la sala de teatro antes de finalizar una obra suya, y por haber escrito una denigrante crítica teatral, le sirve a Usigli para presentar un tenso y dramático confron- tamiento entre dos actitudes ante la...

Rodrí guez-Seda, Asela

1974-10-01

188

Seismic Wave Amplification in Las Vegas: Site Response and Empirical Estimates of Ground Motion  

NASA Astrophysics Data System (ADS)

This presentation will summarize a multidisciplinary effort to understand seismic wave amplification in Las Vegas Valley. The project involves weak motion recording and analysis, geotechnical and seismic refraction field studies, geologic and lithologic interpretation and model building. We will provide a brief overview of the project, then focus on specifics of seismic wave amplification including observations and interpretations. We analyzed recordings of nuclear explosions from the Nevada Test Site (NTS) and regional earthquakes to estimate site response in Las Vegas. An empirical transfer function method was used to transform ground motion time-series at one (reference) station to other stations, using frequency dependent site response curves in the band 0.2-5.0 Hz. The method transforms the time-series to the frequency domain by Fast Fourier transform, multiplies the amplitude spectrum by the site response curve and inverse FFT's back to the time domain. The approach is validated by the ability to predict horizontal component S-wave ground motion measures, such as peak and rms ground velocities and accelerations. We then can provide empirical estimates of ground motion for a wider distribution of sites in Las Vegas. Frequency dependent amplifications (site response) and peak ground motions are strongly correlated with measures of shallow shear-wave (geotechnical) velocities. Details of the geotechnical measurements and models will be presented in a companion presentation. This work was performed under the auspices of the U.S. Department of Energy by University of California Lawrence Livermore National Laboratory under contract No. W-7405-Eng-48.

Rodgers, A.; McCallen, D.; Tkalcic, H.; Wagoner, J.; Louie, J.; Anderson, J.; Luke, B.; Snelson, C.; Taylor, W.

2004-12-01

189

An Aerial Radiological Survey of the City of North Las Vegas (Downtown) and the Motor Speedway  

SciTech Connect

As part of the proficiency training for the Radiological Mapping mission of the Aerial Measuring System (AMS), a survey team from the Remote Sensing Laboratory-Nellis (RSL-Nellis) conducted an aerial radiological survey on December 11-12, 2007, with the purpose of mapping natural radiation background and locating any man-made radioactive sources. The survey covered 19.4 square miles (9.2 square miles over the downtown area of the City of North Las Vegas and 10.2 square miles over the Las Vegas Motor Speedway [LVMS]). The flight lines over the surveyed areas are presented in Figures 1 and 2. A total of four 2.5-hour-long flights were performed at an altitude of 150 ft above ground level (AGL) with 300 ft of flight line spacing. Water line and test line flights were conducted over the Lake Mead and Government Wash areas to ensure quality control of the data. The data were collected by the AMS data acquisition system-REDAR V using an array of twelve 2-inch x 4-inch x 16-inch sodium iodide (NaI) detectors flown on-board a twin-engine Bell 412 helicopter. Data in the form of gamma energy spectra were collected continually (every second) over the course of the survey and were geo-referenced using a differential Global Positioning System. Collection of spectral data allows the system to distinguish between ordinary fluctuations in natural background radiation levels and the signature produced by man-made radioisotopes sources. Spectral data can also be used to identify specific radioactive isotopes. As a courtesy service with the approval of the U.S. Department of Energy, National Nuclear Security Administration, Nevada Site Office, RSL-Nellis is providing this summary to the office of the Mayor of City of North Las Vegas and LVMS security along with the gross counts-based exposure rate and man-made counts maps.

Piotr Wasiolek

2007-12-01

190

Climate Change, Nuclear Power and Nuclear  

E-print Network

Climate Change, Nuclear Power and Nuclear Proliferation: Magnitude Matters Rob Goldston MIT IAP plays a large role in replacing coal red plants. al hydro electricity options penetrate in the climate way across scenarios, showing a slight severe climate targets. In Industry, the climate target has

191

Nuclear weapons, nuclear strategy, and law  

Microsoft Academic Search

Fried (Denver J Int. Law and Policy, V. 14, p 97 (1985)) asserted that international law establishes the illegality of nuclear weapons as illegal per se; i.e., that nuclear weapons are not permissible regardless of use. The author responds to Fried's essay by making the following argument. First, an analysis of international law and specifically, the law of war, shows

Almond; H. H. Jr

2009-01-01

192

Resumen--Las recientes modificaciones legales al mercado de generacin elctrico en Chile, introducidas mediante las leyes N  

E-print Network

1 Resumen-- Las recientes modificaciones legales al mercado de generación eléctrico en Chile inserción de sistemas de generación eólica en Chile. Se evalúa financieramente un proyecto de 8,5 MW, Chile se encuentra en un proceso de revisión de la política de neutralidad en el que se desenvuelven las

Dixon, Juan

193

Poltica energtica y visin de futuro en Chile: Rol de las redesen Chile: Rol de las redes  

E-print Network

Política energética y visión de futuro en Chile: Rol de las redesen Chile: Rol de las redes;La metodología de expansión de la transmisión en aplicación en Chile no está reconociendo y en Chile. Exponer los desafíos presentes en el proceso de expansión del sistema troncal en Chile

Catholic University of Chile (Universidad Católica de Chile)

194

INTRAVAL Phase 2: Modeling testing at the Las Cruces Trench Site  

SciTech Connect

Several field experiments have been performed by scientists from the University of Arizona and New Mexico State University at the Las Cruces Trench Site to provide data tc test deterministic and stochastic models for water flow and solute transport. These experiments were performed in collaboration with INTRAVAL, an international effort toward validation of geosphere models for the transport of radionuclides. During Phase I of INTRAVAL, qualitative comparisons between experimental data and model predictions were made using contour plots of water contents and solute concentrations. Detailed quantitative comparisons were not made. To provide data for more rigorous model testing, a third Las Cruces Trench experiment was designed by scientists from the University of Arizona and New Mexico State University. Modelers from the Center for Nuclear Waste Regulatory Analysis, Massachusetts Institute of Technology, New Mexico State University, Pacific Northwest Laboratory, and the University of Texas provided predictions of water flow and tritium transport to New Mexico State University for analysis. The corresponding models assumed soil characterizations ranging from uniform to deterministically heterogeneous to stochastic. This report presents detailed quantitative comparisons to field data.

Hills, R.G. [New Mexico State Univ., Las Cruces, NM (United States). Dept. of Mechanical Engineering; Wierenga, P.J. [Arizona Univ., Tucson, AZ (United States). Dept. of Soil and Water Science; Luis, S.; McLaughlin, D. [Massachusetts Inst. of Tech., Cambridge, MA (United States); Rockhold, M. [Pacific Northwest Lab., Richland, WA (United States); Xiang, J.; Scanlon, B. [Texas Univ., Austin, TX (United States). Bureau of Economic Geology; Wittmeyer, G. [Southwest Research Inst., San Antonio, TX (United States). Center for Nuclear Waste Regulatory Analyses

1994-01-01

195

Nuclear Renaissance Requires Nuclear Enlightenment W J Nuttall  

E-print Network

. The synergies between nuclear weapons development, naval propulsion sNuclear Renaissance Requires Nuclear Enlightenment W J Nuttall Judge Business School, Cambridge University, Trumpington Street Cambridge, CB2 1AG UK Abstract Nuclear energy was developed by technocratic

Aickelin, Uwe

196

Nuclear radiation actuated valve  

DOEpatents

A nuclear radiation actuated valve for a nuclear reactor. The valve has a valve first part (such as a valve rod with piston) and a valve second part (such as a valve tube surrounding the valve rod, with the valve tube having side slots surrounding the piston). Both valve parts have known nuclear radiation swelling characteristics. The valve's first part is positioned to receive nuclear radiation from the nuclear reactor's fuel region. The valve's second part is positioned so that its nuclear radiation induced swelling is different from that of the valve's first part. The valve's second part also is positioned so that the valve's first and second parts create a valve orifice which changes in size due to the different nuclear radiation caused swelling of the valve's first part compared to the valve's second part. The valve may be used in a nuclear reactor's core coolant system.

Christiansen, David W. (Kennewick, WA); Schively, Dixon P. (Richland, WA)

1985-01-01

197

What Is Nuclear Medicine?  

MedlinePLUS

... medical procedures. What is radiation? Cosmic Radiation Sun Earth Atmosphere + + + + + - - - - - 4 How many nuclear medicine procedures are ... anywhere from a few hours to a few days after your nuclear medicine study. For many therapy ...

198

Nuclear Structure Graphical Software  

Microsoft Academic Search

We have developed a nuclear software package for visualization of nuclei. It displays nuclei in several static and dynamic modes, corresponding to various known phenomena\\/substructures in nuclear theory. These include the \\

Norman D. Cook; Takefumi Hayashi

1998-01-01

199

RBC nuclear scan  

MedlinePLUS

An RBC nuclear scan uses small amounts of radioactive material to mark (tag) red blood cells (RBCs). Your body is then ... radiation -- it does not give off radiation. Most nuclear scans (including an RBC scan) are not recommended ...

200

Nuclear stress test  

MedlinePLUS

... Persantine stress test; Thallium stress test; Stress test - nuclear; Adenosine stress test; Regadenoson stress test ... Thallium stress test is a nuclear imaging method that shows how well blood flows into the heart muscle, both at rest and during activity.

201

Triangle Universities Nuclear Laboratory  

SciTech Connect

This report contains brief papers that discusses the following topics: Fundamental Symmetries in the Nucleus; Internucleon Interactions; Dynamics of Very Light Nuclei; Facets of the Nuclear Many-Body Problem; and Nuclear Instruments and Methods.

Not Available

1991-01-01

202

Hegemony and nuclear proliferation  

E-print Network

Contrary to longstanding of predictions of nuclear tipping points, the number of states interested in nuclear weapons has sharply declined in recent decades. In contrast to existing explanations, this dissertation argues ...

Miller, Nicholas L. (Nicholas LeSuer)

2014-01-01

203

Nuclear materials in Japan  

NASA Astrophysics Data System (ADS)

The incident at Fukushima Daiichi brought materials in the nuclear industry into the spotlight. Nature Materials talks to Tatsuo Shikama, Director of the International Research Centre for Nuclear Materials, Institute for Materials Research, Tohoku University, about the current situation.

2015-03-01

204

FAQs: Japan Nuclear Concerns  

MedlinePLUS

... of Japan? During the early phase of the nuclear emergency radiation-related health were dependant on exposure, which is ... material released into the atmosphere from the Japanese nuclear power plants. Radiation levels measured to date in other countries are ...

205

Teaching "The Nuclear Predicament."  

ERIC Educational Resources Information Center

Contends that courses on nuclear war must help students examine the political, social, religious, philosophical, economic, and moral assumptions which characterized the dilemma of nuclear armament/disarmament. Describes the upper level undergraduate course taught by the authors. (JDH)

Carman, Philip; Kneeshaw, Stephen

1987-01-01

206

Nuclear disarmament verification  

SciTech Connect

Arms control treaties, unilateral actions, and cooperative activities -- reflecting the defusing of East-West tensions -- are causing nuclear weapons to be disarmed and dismantled worldwide. In order to provide for future reductions and to build confidence in the permanency of this disarmament, verification procedures and technologies would play an important role. This paper outlines arms-control objectives, treaty organization, and actions that could be undertaken. For the purposes of this Workshop on Verification, nuclear disarmament has been divided into five topical subareas: Converting nuclear-weapons production complexes, Eliminating and monitoring nuclear-weapons delivery systems, Disabling and destroying nuclear warheads, Demilitarizing or non-military utilization of special nuclear materials, and Inhibiting nuclear arms in non-nuclear-weapons states. This paper concludes with an overview of potential methods for verification.

DeVolpi, A.

1993-12-31

207

Nuclear power browning out  

SciTech Connect

When the sad history of nuclear power is written, April 26, 1986, will be recorded as the day the dream died. The explosion at the Chernobyl plant was a terrible human tragedy- and it delivered a stark verdict on the hope that nuclear power will one day replace fossil fuel-based energy systems. Nuclear advocates may soldier on, but a decade after Chernobyl it is clear that nuclear power is no longer a viable energy option for the twenty-first century.

Flavin, C.; Lenssen, N.

1996-05-01

208

Nuclear Weapons as Shields  

Microsoft Academic Search

What security benefits do nuclear weapons provide to their possessors? After accounting for two potential selection effects, the empirical evidence from all international crises from 1945 to 2000 indicates that opponents of nuclear-weapon states demonstrate restraint in turning to violent aggression. Nuclear weapons, however, have little effect on overall crisis occurrence.The authors also explore the behavioral effects of nuclear-weapons programs

Kyle Beardsley; Victor Asal

2009-01-01

209

Nuclear pairing: New perspectives  

Microsoft Academic Search

Nuclear pairing correlations are known to play an important role in various single-particle and collective aspects of nuclear\\u000a structure. After the first idea by A. Bohr, B. Mottelson, and D. Pines on similarity of nuclear pairing to electron superconductivity,\\u000a S.T. Belyaev gave a thorough analysis of the manifestations of pairing in complex nuclei. The current revival of interest\\u000a in nuclear

Vladimir Zelevinsky; Alexander Volya

2003-01-01

210

NUCLEAR PLANT AND CONTROL  

E-print Network

NUCLEAR PLANT OPERATIONS AND CONTROL KEYWORDS: software require- ments, safety analysis, formal for the digital protection systems of a nuclear power plant. When spec- ifying requirements for software and CRSA processes are described using shutdown system 2 of the Wolsong nuclear power plants as the digital

211

NUCLEAR POWER in CALIFORNIA  

E-print Network

NUCLEAR POWER in CALIFORNIA: 2007 STATUS REPORT CALIFORNIA ENERGY COMMISSION October 2007 CEC-100 public workshops on nuclear power. The Integrated Energy Policy Report Committee, led by Commissioners, California Contract No. 700-05-002 Prepared For: California Energy Commission Barbara Byron, Senior Nuclear

212

Second Nuclear Era  

Microsoft Academic Search

The Institute for Energy Analysis with support from The Andrew W. Mellon Foundation has studied the decline of the present nuclear era in the United States and the characteristics of a Second Nuclear Era which might be instrumental in restoring nuclear power to an appropriate place in the energy options of our country. The study has determined that reactors operating

A. M. Weinberg; I. Spiewak; J. N. Barkenbus; R. S. Livingston; D. L. Phung

1984-01-01

213

Security with nuclear weapons  

Microsoft Academic Search

Recent improvements in East-West relations and the process of dramatic political change in Europe may result in unprecedented opportunities to reduce the global arsenal of nuclear weapons. Despite these welcome developments, the prospects for effectively controlling the spread of nuclear capability in the Third World have remained much less encouraging. The possibility of large reductions in nuclear weapons poses fundamental

Karp

1991-01-01

214

RELATIVISTIC NUCLEAR COLLISIONS: THEORY  

E-print Network

energy nuclear collisions: implications on pion spectra,"nuclear shadowing) often lead to complicated distortions of the particle spectra.nuclear collisions at energies > 1 GeV/nucleon, the cascade calculations reproduce well the high momentum com­ ponent ' ' of the spectra

Gyulassy, M.

2010-01-01

215

Nuclear energy technology  

NASA Technical Reports Server (NTRS)

An overview of space nuclear energy technologies is presented. The development and characteristics of radioisotope thermoelectric generators (RTG's) and space nuclear power reactors are discussed. In addition, the policy and issues related to public safety and the use of nuclear power sources in space are addressed.

Buden, David

1992-01-01

216

Nuclear beta decay  

Microsoft Academic Search

New formulae for nuclear beta decay are derived by using a modified expansion of the electron radial wave functions. This expansion is obtained by means of the integral equations which correspond to the Dirac radial differential equations. As a consequence new types of form factor coefficients or nuclear matrix elements occur which depend on the shape of the nuclear charge

H. Behrens; W. Bühring

1971-01-01

217

Basic Nuclear Physics.  

ERIC Educational Resources Information Center

Basic concepts of nuclear structures, radiation, nuclear reactions, and health physics are presented in this text, prepared for naval officers. Applications to the area of nuclear power are described in connection with pressurized water reactors, experimental boiling water reactors, homogeneous reactor experiments, and experimental breeder…

Bureau of Naval Personnel, Washington, DC.

218

Effects of Nuclear Weapons.  

ERIC Educational Resources Information Center

Fundamental principles governing nuclear explosions and their effects are discussed, including three components of a nuclear explosion (thermal radiation, shock wave, nuclear radiation). Describes how effects of these components depend on the weapon's yield, its height of burst, and distance of detonation point. Includes effects of three…

Sartori, Leo

1983-01-01

219

The Tokaimura Nuclear Accident  

NSDL National Science Digital Library

The 1999 accident at the Tokaimura nuclear fuel processing plant near Tokyo is the context for a student discussion on nuclear power and the consequences of a nuclear accident. The case covers issues ranging from chemical process safety to risk management

Michael E. Ryan

2001-09-01

220

The truncated nuclear family  

Microsoft Academic Search

The truncated nuclear family is defined: it is the garden-variety family “pathology” found. The critical role of polarized continuity and discontinuity values in producing the truncated nuclear family is discussed. There is a brief review of factors in American society which, over the decades since the Second World War, have evolved the nuclear family as a dominant family unit, and

Gerald H. Zuk

1985-01-01

221

Teaching Nuclear History.  

ERIC Educational Resources Information Center

Presents results of a survey of the teaching about nuclear history at U.S. colleges and universities. Reports the existence of a well-established and extensive literature, a focus on nuclear weapons or warfare, and a concentration on nuclear citizenship, therapy, or eschatology for courses outside of history departments. Discusses individual…

Holl, Jack M.; Convis, Sheila C.

1991-01-01

222

Nuclear spirals in galaxies  

E-print Network

Recent high-resolution observations indicate that nuclear spirals are often present in the innermost few hundred parsecs of disc galaxies. My models show that nuclear spirals form naturally as a gas response to non-axisymmetry in the gravitational potential. Some nuclear spirals take the form of spiral shocks, resulting in streaming motions in the gas, and in inflow comparable to the accretion rates needed to power local Active Galactic Nuclei. Recently streaming motions of amplitude expected from the models have been observed in nuclear spirals, confirming the role of nuclear spirals in feeding of the central massive black holes.

Witold Maciejewski

2006-11-08

223

History of Nuclear India  

NASA Astrophysics Data System (ADS)

India emerged as a free and democratic country in 1947, and entered into the nuclear age in 1948 by establishing the Atomic Energy Commission (AEC), with Homi Bhabha as the chairman. Later on the Department of Atomic Energy (DAE) was created under the Office of the Prime Minister Jawahar Lal Nehru. Initially the AEC and DAE received international cooperation, and by 1963 India had two research reactors and four nuclear power reactors. In spite of the humiliating defeat in the border war by China in 1962 and China's nuclear testing in 1964, India continued to adhere to the peaceful uses of nuclear energy. On May 18, 1974 India performed a 15 kt Peaceful Nuclear Explosion (PNE). The western powers considered it nuclear weapons proliferation and cut off all financial and technical help, even for the production of nuclear power. However, India used existing infrastructure to build nuclear power reactors and exploded both fission and fusion devices on May 11 and 13, 1998. The international community viewed the later activity as a serious road block for the Non-Proliferation Treaty and the Comprehensive Test Ban Treaty; both deemed essential to stop the spread of nuclear weapons. India considers these treaties favoring nuclear states and is prepared to sign if genuine nuclear disarmament is included as an integral part of these treaties.

Chaturvedi, Ram

2000-04-01

224

Commercial nuclear power 1990  

SciTech Connect

This report presents the status at the end of 1989 and the outlook for commercial nuclear capacity and generation for all countries in the world with free market economies (FME). The report provides documentation of the US nuclear capacity and generation projections through 2030. The long-term projections of US nuclear capacity and generation are provided to the US Department of Energy's (DOE) Office of Civilian Radioactive Waste Management (OCRWM) for use in estimating nuclear waste fund revenues and to aid in planning the disposal of nuclear waste. These projections also support the Energy Information Administration's annual report, Domestic Uranium Mining and Milling Industry: Viability Assessment, and are provided to the Organization for Economic Cooperation and Development. The foreign nuclear capacity projections are used by the DOE uranium enrichment program in assessing potential markets for future enrichment contracts. The two major sections of this report discuss US and foreign commercial nuclear power. The US section (Chapters 2 and 3) deals with (1) the status of nuclear power as of the end of 1989; (2) projections of nuclear capacity and generation at 5-year intervals from 1990 through 2030; and (3) a discussion of institutional and technical issues that affect nuclear power. The nuclear capacity projections are discussed in terms of two projection periods: the intermediate term through 2010 and the long term through 2030. A No New Orders case is presented for each of the projection periods, as well as Lower Reference and Upper Reference cases. 5 figs., 30 tabs.

Not Available

1990-09-28

225

Overview of nuclear data  

SciTech Connect

For many years, nuclear structure and decay data have been compiled and disseminated by an International Network of Nuclear Structure and Decay Data (NSDD) evaluators under the auspices of the International Nuclear Data Committee (INDC) of the International Atomic Energy Agency (IAEA). In this lecture I will discuss the kinds of data that are available and describe various ways to obtain this information. We will learn about some of the publications that are available and Internet sources of nuclear data. You will be introduced to Isotope Explorer software for retrieving and displaying nuclear structure and radioactive decay data. The on-line resources Table of Radioactive Isotopes, PGAA Database Viewer, Nuclear Science Reference Search, Table of Isotopes Educational Website, and other information sources will be discussed. Exercises will be provided to increase your ability to understand, access, and use nuclear data.

Firestone, R.B.

2003-06-30

226

Nuclear Reactor Physics  

NASA Astrophysics Data System (ADS)

An authoritative textbook and up-to-date professional's guide to basic and advanced principles and practices Nuclear reactors now account for a significant portion of the electrical power generated worldwide. At the same time, the past few decades have seen an ever-increasing number of industrial, medical, military, and research applications for nuclear reactors. Nuclear reactor physics is the core discipline of nuclear engineering, and as the first comprehensive textbook and reference on basic and advanced nuclear reactor physics to appear in a quarter century, this book fills a large gap in the professional literature. Nuclear Reactor Physics is a textbook for students new to the subject, for others who need a basic understanding of how nuclear reactors work, as well as for those who are, or wish to become, specialists in nuclear reactor physics and reactor physics computations. It is also a valuable resource for engineers responsible for the operation of nuclear reactors. Dr. Weston Stacey begins with clear presentations of the basic physical principles, nuclear data, and computational methodology needed to understand both the static and dynamic behaviors of nuclear reactors. This is followed by in-depth discussions of advanced concepts, including extensive treatment of neutron transport computational methods. As an aid to comprehension and quick mastery of computational skills, he provides numerous examples illustrating step-by-step procedures for performing the calculations described and chapter-end problems. Nuclear Reactor Physics is a useful textbook and working reference. It is an excellent self-teaching guide for research scientists, engineers, and technicians involved in industrial, research, and military applications of nuclear reactors, as well as government regulators who wish to increase their understanding of nuclear reactors.

Stacey, Weston M.

2001-02-01

227

Teatro de las Bellas Artes de la Ciudad de México  

E-print Network

hall, ferias y exposiciones. Llega el año de 1930, que es de buen augurio para el edificio. El ingeniero Pascual Ortiz Rubio asume la presidencia de la República y desea que se prosigan las obras del Teatro Nacional. Como no existe presupuesto para... visibilidad mejoró y el cupo se aumentó. Tanto por el costo de los materiales como por el deseo nacionalista de los encargados de la obra se procuró que fueran mexicanos, pero las flautas del órgano fueron fabricadas en Alemania. En Estados Unidos se...

Mendoza Ló pez, Margarita

1985-04-01

228

El Informe Anual a la Nación Muestra que la Incidencia de Cáncer y las Tasas de Mortalidad están Declinado: Las Tasas de Supervivencia Reflejan Progreso Significativo  

Cancer.gov

Las organizaciones más importantes de la Nación informan que los riesgos de la población americana a contraer o morir a causa de cáncer continúan disminuyendo mientras que las tasas de supervivencia para muchos tipos de cáncer continúan aumentando.

229

Retos de las PyME en la era digital: ¿Rol de las asociaciones de empresas¿: Proyecto de Apoyo al Desarrollo del Comercio electrónico en Guatemala  

Microsoft Academic Search

Fortalecer la confianza en las transacciones en línea, Concienciar y capacitar al personal de la CCG y de las PYMES en TIC y comercio, Asistencia técnica y desarrollo de servicios en el uso de TIC y de comercio electrónico

Mercedes Zaghi

2006-01-01

230

CARACTERÍSTICAS DEL DIRECTIVO RESPONSABLE DEL ÁREA INTERNACIONAL Y RESULTADO EXPORTADOR DE LAS EMPRESAS INDUSTRIALES  

Microsoft Academic Search

RESUMEN La creencia de que la intensidad exportadora de las empresas puede estar ocasionada por barreras internas ha generado un cuerpo de investigación sobre la influencia de las características de los directivos responsables del área internacional (DRAI) en el inicio de las operaciones de exportación, la adopción de un papel activo en la intensificación de las exportaciones o el logro

Del Río Araújo

2005-01-01

231

Clasificacin de las amenazas a la seguridad en sistemas RFID -EPC Gen2  

E-print Network

Clasificación de las amenazas a la seguridad en sistemas RFID - EPC Gen2 Joan Melià-Seguí, Joaquin este artículo una vista rápida a la familia de amenazas a las que se enfrenta la tecnología EPC. Index las amenazas de seguridad. Como sucede en otras tecnologías emergentes, la falta de seguridad y las

Garcia-Alfaro, Joaquin

232

Compact Groups of Galaxies in the Las Campanas Redshift Survey  

Microsoft Academic Search

Compact groups of galaxies -- relatively poor groups of galaxies in which the typical separations between members is of the order of a galaxy diameter -- offer an exceptional laboratory for the study of dense galaxian environments. Here, we present first results from a new catalogue of compact groups, based upon the Las Campanas Redshift Survey, which contains 78 compact

S. S. Allam; D. L. Tucker

1998-01-01

233

Las Rocas Nos Cuentan (Rocks Tell Their Stories)  

ERIC Educational Resources Information Center

Many Earth science lessons today still focus on memorizing the names of rocks and minerals. This led the author to develop a lesson that reveals the fascinating stories told by rocks through the study of their physical properties. He first designed the lesson for Puerto Rican teachers, hence its Spanish title: "Las Rocas Nos Cuentan Su Historia."…

Llerandi-Roman, Pablo A.

2012-01-01

234

Computando lo aspero Por que se cuelgan las computadoras?  

E-print Network

construir una m´aquina que demuestre teoremas y as´i encuentre todas las verdades matem´aticas. Kurt G¨odel´aquina no puede resolver. #12;Historia de Hilbert y sus amigos David Hilbert: Bueno... yo pens´e que... Kurt G¨odel

Figueira, Santiago

235

NEVADA UNIVERSITY TRANSPORTATION CENTER UNIVERSITY OF NEVADA, LAS VEGAS  

E-print Network

NEVADA UNIVERSITY TRANSPORTATION CENTER UNIVERSITY OF NEVADA, LAS VEGAS 2011-2012 ANNUAL REPORT #12 University Transportation Center (NUTC) Vision: The NUTC will strive to become a nationally recognized center of excellence for research in planning, operations and management of sustainable transportation systems

Hemmers, Oliver

236

Introduction Las Vegas is a place of continual reinvention. Due  

E-print Network

of targeted family marketing are identified, addressing why this advertising approach ultimately did and a concerted advertising effort by some properties to target families. This paper explores the economic carefully-designed advertising schemes displayed in print and visual media. Given that the image of Las

Hemmers, Oliver

237

Aprendizaje de las matemáticas utilizando una herramienta distribuida  

Microsoft Academic Search

Este proyecto busca apoyar el proceso de aprendizaje de las matemáticas en escuelas de educación primaria, proponiendo una práctica educativa que utiliza modelos mentales usuales para el niño, el uso de la informática, y de tecnología distribuida de información. A lo largo de este documento se expone la forma en que se han empleado metodologías de usabilidad para implementar la

Everth Rocha; Gabriel Gerónimo; Francisco Hernández

2005-01-01

238

Descubriendo el código digital de las levaduras vínicas  

Microsoft Academic Search

Cada cuatro años los Juegos Olímpicos inspiran al mundo con actuaciones espectaculares y hazañas de resistencia, velocidad y elegancia. Nos maravillamos ante las proezas atléticas de los competidores, y la mayoría de nosotros solo nos podemos preguntar cómo hacen estos campeones para alcanzar estos estándares. ¿Qué es lo hace a estos ganadores tan diferentes del resto de nosotros? ¿No somos

Anthony R. Borneman; Angus H. Forgan; Paul J. Chambers; Isak S. Pretorius

239

ESTRUCTURA DE LAS ACTITUDES HACIA EL CONSUMO ELECTRÓNICO  

Microsoft Academic Search

Se entrevistaron a 188 usuarios de una biblioteca pública en la que se ofrecen servicios digitales de información científica y acceso a redes sociales y comercio electrónico. El objetivo del estudio fue demostrar la estructura de las actitudes, su distribución normal, confiabilidad, validez de constructo y covariación entre sus indicadores. Los resultados corroboran la hipótesis nula y a partir de

Cruz García Lirios

2011-01-01

240

Castelldefels Salut: Las redes sociales y la Atención Primaria  

Microsoft Academic Search

Las enfermedades crónicas, en buena parte causadas por los estilos de vida, están y estarán tensionando a los servicios sanitarios. Una estrategia que cada día adquiere más vigencia son los proyectos de salud comunitarios que puedan incidir, de forma efectiva, para fomentar hábitos de vida más saludables. En este artículo presentamos nuestra experiencia de trabajo en red de los distintos

Ramon Morera; Tino Martí; Irene Cubells; Mireia Sans; Alba Brugués; Antoni Peris; Eduard Navarro

2012-01-01

241

Accesibilidad en las Aulas de la Web 2.0  

Microsoft Academic Search

El uso de las Nuevas tecnologías de la información y la comunicación (TIC) en la educación ha abierto nuevas posibilidades de aprendizaje y acceso a la información para muchas personas, al mismo tiempo que aumenta la brecha digital entre quienes tienen mayor acceso a la información, a la educación y a la tecnología, y la gran minoría de personas para

Juan Gabriel; Sáenz Espitia

242

La educación en las matemáticas bajo un entorno tecnológico  

Microsoft Academic Search

Actualmente, algunos indicadores internacionales muestran cuan mal va la educación matemática y como algunos institutos de educación superior están realizando esfuerzos importantes por sustituir el modo tradicional de educación, al cual se atribuye el estado de la situación. Al respecto, se tiene confianza en la introducción de las Tecnologías de la Información y Comunicación, en los procesos educativos y en

Juan Carlos Briceño

2011-01-01

243

Efectos de las fusiones sobre el mercado financiero colombiano  

Microsoft Academic Search

Este trabajo examina los efectos de las fusiones en el sistema ban- cario sobre la eficiencia del sistema y los precios. Se encuentra que los bancos que han atravesado procesos de fusiones pueden experimentar mejoras en los indices de eficiencia en beneficios. Estas mejoras en eficiencia fueron superiores para aquellos bancos que presentaban rankings de eficiencia más bajos antes de

Dairo Estrada

2005-01-01

244

University of Nevada Las Vegas School of Life Sciences  

E-print Network

University of Nevada Las Vegas School of Life Sciences Graduate Program Handbook Prepared by the School of Life Sciences Graduate Operations Committee Revised September 2011 #12;Table of Contents Page..........................................................................................................................20 #12;1 The School of Life Sciences Graduate Program Handbook School of Life Sciences (So

Hemmers, Oliver

245

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

246

Reading "Las Meninas": An Ekphrastic Approach to Teaching "Don Quijote"  

ERIC Educational Resources Information Center

Reading and teaching "Don Quijote" present multiple challenges to twenty-first century students and instructors who are culturally and historically distanced from the seventeenth century. With "Las Meninas" serving as a visual lexicon for cuing correlative themes and events in "Don Quijote", the instructor, through an ekphrastic, interdisciplinary…

Ortuno, Marian

2012-01-01

247

CONCENTRACION INDUSTRIAL EN LAS REGIONES ESPAÑOLAS Y EUROPEAS  

Microsoft Academic Search

Este documento es una versión actualizada del Capítulo 3 del libro de Guisán, Cancelo, Aguayo y Díaz(2001). El interés de este estudio está en analizar la importancia de la industria sobre la renta y el empleo de las regiones europeas, no sólo por su efecto positivo directo sino también por sus efectos positivos indirectos sobre otros sectores productivos y en

Maria-Carmen GUISAN; Maria-Teresa CANCELO; Maria-Rosario DÍAZ

2010-01-01

248

UNIVERSIDAD DE LAS AM ERICAS PUEBLA Escuela de Ingenieria  

E-print Network

UNIVERSIDAD DE LAS AM ´ERICAS ­ PUEBLA Escuela de Ingenier´ia Departamento de Ingenier´ia en Ciencias con Especialidad en Ingenier´ia en Sistemas Computacionales. Dirigida por Dr. Mauricio Osorio Galindo y aceptada por el Departamento de Ingenier´ia en Sistemas Computacionales. Sta. Catarina M

Navarro Pérez, Juan

249

UNIVERSIDAD DE VALLADOLID EDIFICIO DE LAS TECNOLOGIAS DE LA  

E-print Network

, utilizando las estructuras del Diagrama de Voronoi, y su dual, la Triangulaci´on de Delaunay, y el M´etodo de interpolaci´on por vecinos naturales propuesto por Sibson. Definimos dos mecanismos de contagio, el M´etodo de conteo con vecinos naturales y el M´etodo de interpolaci´on con vecinos naturales. Dado que no existe

Palop del Río, Belén

250

Impacto de las regalías petroleras en el Departamento del Meta  

Microsoft Academic Search

El departamento del Meta extrae petróleo crudo desde el año 1976, ubicándose, en la actualidad, entre los tres mayores productores del país. En consecuencia, con la influencia de su producción y las regalías, que han elevado el PIB departamental y fortalecido sus finanzas públicas, deben garantizarse amplías oportunidades de inversión, tanto pública como privada. El objetivo de este estudio es,

Germán Humberto Hernández Leal

2004-01-01

251

Tree-Killing Las Conchas Fire in New Mexico  

USGS Multimedia Gallery

USGS scientist Craig D. Allen observes the results of the extensive, tree-killing fire that consumed almost all above-ground biomass in this part of the Las Conchas Fire burn area in the Jemez Mountains, New Mexico. Photo taken in late August 2011, two months post-fire. Forest drought stress is high...

252

Las igualas médicas frente al seguro social (República Dominicana)  

Microsoft Academic Search

Los servicios médicos del seguro social y las igualas médicas privadas son sistemas de provisión de servicios prepagados de salud. El primero se organiza bajo la modalidad de producción estatal, con una gestión centralizada, cotizaciones obligatorias y sin posibilidad de elección del proveedor por parte del usuario. No obstante, el segundo se trata de entidades privadas, gestión descentralizada, regidas por

Isidoro Santana

1997-01-01

253

ALTERNATIVAS PARA LA OPTIMIZACIÓN DE LAS CAPACIDADES DE ALMACENAMIENTO  

Microsoft Academic Search

Hoy en día el dominio de la logística se ha transformado en uno de los ingredientes esenciales del éxito empresarial, existiendo empresas especializadas en brindar servicios terciarios de gestión logística. El caso de estudio seleccionado es un operador logístico especializado en el arrendamiento de almacenes, donde por las dificultades relacionadas con la utilidad del arrendamiento por metro cuadrado, la tecnología

Daynier Marzo Cervera; Elsa Delgado Pérez; Clara Marrero Fornaris

2010-01-01

254

Control del dolor: Apoyo para las personas con cáncer  

Cancer.gov

Contiene información sobre las medicinas contra el dolor para pacientes con cáncer, los planes para controlarlo, cómo hablar con su equipo de atención médica sobre el dolor que usted siente y qué hacer para controlar los efectos físicos y emocionales del mismo.

255

Nuclear Science References Database  

E-print Network

The Nuclear Science References (NSR) database together with its associated Web interface, is the world's only comprehensive source of easily accessible low- and intermediate-energy nuclear physics bibliographic information for more than 210,000 articles since the beginning of nuclear science. The weekly-updated NSR database provides essential support for nuclear data evaluation, compilation and research activities. The principles of the database and Web application development and maintenance are described. Examples of nuclear structure, reaction and decay applications are specifically included. The complete NSR database is freely available at the websites of the National Nuclear Data Center http://www.nndc.bnl.gov/nsr and the International Atomic Energy Agency http://www-nds.iaea.org/nsr.

B. Pritychenko; E. B?ták; B. Singh; J. Totans

2014-07-08

256

Nuclear Science References Database  

NASA Astrophysics Data System (ADS)

The Nuclear Science References (NSR) database together with its associated Web interface, is the world's only comprehensive source of easily accessible low- and intermediate-energy nuclear physics bibliographic information for more than 210,000 articles since the beginning of nuclear science. The weekly-updated NSR database provides essential support for nuclear data evaluation, compilation and research activities. The principles of the database and Web application development and maintenance are described. Examples of nuclear structure, reaction and decay applications are specifically included. The complete NSR database is freely available at the websites of the National Nuclear Data Center http://www.nndc.bnl.gov/nsr and the International Atomic Energy Agency http://www-nds.iaea.org/nsr.

Pritychenko, B.; B?ták, E.; Singh, B.; Totans, J.

2014-06-01

257

Nuclear Files Archive  

NSDL National Science Digital Library

A project of the Nuclear Age Peace Foundation, this site offers a wealth of materials concerning nuclear weapons and nuclear war, including links to the full text of numerous important documents and treaties. Site contents include a wide variety of articles on various nuclear issues, links to data and graphs, a photo gallery, links to images of nuclear sites, teacher resources, a glossary, and related links. Of special interest is a side-by-side comparison of the first and final drafts of the exhibit script for the National Air and Space Museum exhibit that was planned but cancelled: The Last Act: The Atomic Bomb and the End of World War II. Numerous links are provided throughout the site to related online and print publications and other resources. While not the most attractive site and downright cluttered in some areas, the Nuclear Files Archive offers a good deal of information for users who don't mind digging around a bit.

258

Nuclear: Greenpeace International  

NSDL National Science Digital Library

For an anti-nuclear perspective, look no further than Greenpeace. The venerable environmental organization, now in its 43rd year, seeks to â??end the nuclear ageâ? because it believes nuclear power â??is an unacceptable risk to the environment and to humanity.â? Each of the links offers informative â?? and opinionated â?? arguments against the proliferation of nuclear power. Start with the siteâ??s gloss of the Fukushima Disaster, where you will find Fact Sheets, Publications, and Downloads related to the March 2011 meltdown. Next, peruse the Safety page with links to Nuclear Terrorism, Accidents, Reactors, and Radiation. Nuclear Waste is up next, where you can learn about Reprocessing, Storage, Transport, and Russia. Finally, read about Proliferation, with links to Plutonium and Dirty Bombs.

259

(DOCFRADIS 1201) Estrategia publicitaria del minorista en las redes sociales. Factores que motivan las compras en la web 2.0  

Microsoft Academic Search

El uso de las redes sociales, como estrategia publicitaria del minorista, favorece la comunicación interactiva de la marca y sus productos y motiva las compras, en la web 2.0, produciéndose una revolución en el paradigma estimulo-respuesta del siglo XXI. El trabajo analiza la potencialidad de la interactividad como estrategia de marca en las redes sociales e identifica los factores clave

Ines Küster Boluda; Natalia Vila López; Asunción Hernández Fernández

2012-01-01

260

UNIVERSITY OF NEVADA, LAS VEGAS CODE OF ETHICS AND CONDUCT The University of Nevada, Las Vegas (UNLV) performs its mission with the highest  

E-print Network

UNIVERSITY OF NEVADA, LAS VEGAS CODE OF ETHICS AND CONDUCT The University of Nevada, Las Vegas and procedures constitute the University of Nevada, Las Vegas Code of Ethics and Conduct: State Law: Nevada Revised Code ­ Code of Ethical Standards http://www.leg.state.nv.us/NRS/NRS-281A.html#NRS281ASec400 Nevada

Hemmers, Oliver

261

Absolute nuclear material assay  

DOEpatents

A method of absolute nuclear material assay of an unknown source comprising counting neutrons from the unknown source and providing an absolute nuclear material assay utilizing a model to optimally compare to the measured count distributions. In one embodiment, the step of providing an absolute nuclear material assay comprises utilizing a random sampling of analytically computed fission chain distributions to generate a continuous time-evolving sequence of event-counts by spreading the fission chain distribution in time.

Prasad, Manoj K. (Pleasanton, CA); Snyderman, Neal J. (Berkeley, CA); Rowland, Mark S. (Alamo, CA)

2012-05-15

262

Nuclear Fabrication Consortium  

SciTech Connect

This report summarizes the activities undertaken by EWI while under contract from the Department of Energy (DOE) � Office of Nuclear Energy (NE) for the management and operation of the Nuclear Fabrication Consortium (NFC). The NFC was established by EWI to independently develop, evaluate, and deploy fabrication approaches and data that support the re-establishment of the U.S. nuclear industry: ensuring that the supply chain will be competitive on a global stage, enabling more cost-effective and reliable nuclear power in a carbon constrained environment. The NFC provided a forum for member original equipment manufactures (OEM), fabricators, manufacturers, and materials suppliers to effectively engage with each other and rebuild the capacity of this supply chain by : � Identifying and removing impediments to the implementation of new construction and fabrication techniques and approaches for nuclear equipment, including system components and nuclear plants. � Providing and facilitating detailed scientific-based studies on new approaches and technologies that will have positive impacts on the cost of building of nuclear plants. � Analyzing and disseminating information about future nuclear fabrication technologies and how they could impact the North American and the International Nuclear Marketplace. � Facilitating dialog and initiate alignment among fabricators, owners, trade associations, and government agencies. � Supporting industry in helping to create a larger qualified nuclear supplier network. � Acting as an unbiased technology resource to evaluate, develop, and demonstrate new manufacturing technologies. � Creating welder and inspector training programs to help enable the necessary workforce for the upcoming construction work. � Serving as a focal point for technology, policy, and politically interested parties to share ideas and concepts associated with fabrication across the nuclear industry. The report the objectives and summaries of the Nuclear Fabrication Consortium projects. Full technical reports for each of the projects have been submitted as well.

Levesque, Stephen

2013-04-05

263

[Nuclear News -- Power  

SciTech Connect

The topics discussed in this section are: (1) NU(Northeast Utilities) receives largest court fine levied for false records. (2) ComEd nuclear fleet has best-ever performance. (3) Perry and Beaver Valley now run by First Energy Nuclear. (4) Slight reactor power increases may save dollars; (5) Nuclear plants shares to change hands. (6) Y2K nonsafety-related work scheduled for completion. (7) New NRC plan for reviewing plant license transfers with foreign ownership.

NONE

1999-11-01

264

Nuclear imaging in pediatrics  

SciTech Connect

The author's intent is to familiarize practicing radiologists with the technical aspects and interpretation of nuclear medicine procedures in children and to illustrate the indications for nuclear medicine procedures in pediatric problems. Pediatric doses, dosimetry, sedation, and injection techniques, organ systems, oncology and infection, testicular scanning and nuclear crystography, pediatric endocrine and skeletal systems, ventilation and perfusion imaging of both congenital and acquired pediatric disorders, cardiovascular problems, gastrointestinal, hepatobiliary, reticuloendothelial studies, and central nervous system are all topics which are included and discussed.

Siddiqui, A.R.

1985-01-01

265

Overview of Nuclear Disasters  

Microsoft Academic Search

\\u000a Over 2,400 nuclear explosions were conducted worldwide during the cold war between the USA and USSR since July 1945. The total\\u000a yield of 530 Mt was 35,000 times that of the Hiroshima atomic bomb. Surface and underground nuclear explosions caused radioactive\\u000a pollution locally in ground and water systems. Fission products and plutonium with long half-lives are nuclear hazards for\\u000a local

Jun Takada

266

Power politics. The nuclear industry and nuclear exports  

Microsoft Academic Search

This report examines the nuclear industry, its involvement in the international nuclear market, and the views of corporate spokespersons on exports and proliferation. It addresses the question of how nonproliferation policy may affect the nuclear industry and the nuclear power debate in the US, and how the status of the industry and trends in the world nuclear market may determine

G. C. Duffy; G. Adams

1978-01-01

267

FUSION NUCLEAR SCIENCE PROGRAM & SUPPORTING FUSION NUCLEAR SCIENCE FACILITY (FNSF)  

E-print Network

FUSION NUCLEAR SCIENCE PROGRAM & SUPPORTING FUSION NUCLEAR SCIENCE FACILITY (FNSF): UPDATE in order to apply the knowledge we gained about burning plasma state #12;FUSION NUCLEAR SCIENCE PROGRAM #12;FUSION NUCLEAR SCIENCE PROGRAM DEVELOPMENT OF ELEMENTS OF THE FUSION NUCLEAR SCIENCE PROGRAM

268

Prohibiting nuclear weapons: initiatives towards global nuclear disarmament  

Microsoft Academic Search

The world now stands at a precarious nuclear fork in the road with the following characteristics: the Nuclear Left Path is characterized by continued vertical and horizontal proliferation of nuclear weapons with the danger being that any nation (or terrorist group) that wants such weapons, and can afford them, will eventually secure them; the Nuclear Right Path prohibits all nuclear

J. R. Shanebrook

1999-01-01

269

Preparing Non-nuclear Engineers for the Nuclear Field  

E-print Network

perspectives are shifting, only a limited number of American programs have nuclear-related components. Twenty-four universities have nuclear- related programs, including Nuclear or Radiological Engineering, Nuclear Science technology, the proposed course relates nuclear systems engineering, safe reactor design, infrastructure

Ervin, Elizabeth K.

270

Nuclear criticality safety guide  

SciTech Connect

This technical reference document cites information related to nuclear criticality safety principles, experience, and practice. The document also provides general guidance for criticality safety personnel and regulators.

Pruvost, N.L.; Paxton, H.C. [eds.] [eds.

1996-09-01

271

Technologists for Nuclear Medicine  

ERIC Educational Resources Information Center

Physicians need support personnel for work with radioisotopes in diagnosing dangerous diseases. The Nuclear Medicine Technology (NMT) Program at Hillsborough Community College in Tampa, Florida, is described. (MW)

Barnett, Huey D.

1974-01-01

272

International Nuclear Safety Program  

NSDL National Science Digital Library

The International Nuclear Safety Program (INSP) has updated their map collection in the areas of Soviet designed reactors distributed throughout Eastern Europe and of Ukrainian nuclear power reactors. Information about each reactor is available by clicking on the maps. In addition to the maps, the digital library contains photos, graphics, presentations, and an online database of INSP related reports and information. The site also provides information about Soviet designed reactors and initiatives being undertaken by the US Department of Energy to improve conditions at the Chornobyl nuclear power plant. INSP is part of the US Department of Energy's Office of Nuclear Energy, Science, and Technology.

273

World nuclear generating capacity  

SciTech Connect

Data on the nuclear generating capacity for 1995-1996 of 39 countries are provided in tables and brief summaries. For each nuclear power plant, the operator, reactor supplier, type, net capacity, construction stage, startup and decommissioning dates, and total installed capacity are listed. World totals are provided for 1991, 1996, and 2001 (projected). A total of 424 nuclear power plants operated during this period with a total generating capacity of 347.1 gigawatts electric. Nuclear generating capacity is predicted to be over 365 gigawatts electric by 2001. 105 plants are under construction or planned to begin commercial operation by 2010. 62 plants are scheduled for decommissioning by 2010.

NONE

1996-11-01

274

OFFSITE ENVIRONMENTAL MONITORING REPORT: RADIATION MONITORING AROUND UNITED STATES NUCLEAR TEST AREAS, CALENDAR YEAR 1980  

EPA Science Inventory

The U.S. Environmental Protection Agency's Environmental Monitoring Systems Laboratory in Las Vegas continued its Offsite Radiological Safety Program for the Nevada Test Site (NTS) and other sites of past underground nuclear tests. For each test, the Laboratory provided airborne ...

275

OFFSITE ENVIRONMENTAL MONITORING REPORT. RADIATION MONITORING AROUND UNITED STATES NUCLEAR TEST AREAS, CALENDAR YEAR 1983  

EPA Science Inventory

This report covers the routine radiation monitoring activities conducted by the Environmental Monitoring Systems Laboratory-Las Vegas in areas which may be affected by nuclear testing programs of the Department of Energy. This monitoring is conducted to document compliance with s...

276

¿Qué determina la eficiencia de las entidades microfinancieras en Colombia? Una mirada a las ONG asociadas a Bancoldex  

Microsoft Academic Search

Este trabajo busca demostrar empíricamente si para Colombia se cumple la misma lógica presente en la evidencia internacional sobre si las Entidades de Microfinanzas (EMF) son costo-efectivas y si sus costos son decrecientes a través del tiempo, independientemente a que sean o no auto-sostenibles y a que dependan mucho de donaciones. Se realiza una estimación por el algoritmo de la

Francisco Perdomo N

2011-01-01

277

UNIVERSIDAD DE GRANADA ESCUELA TECNICA SUPERIOR DE INGENIERIAS  

E-print Network

to everything I do. Thanks also to my family. This work has been funded by programs TIC-2003-01504 and TEC2006/13845/TCM from the Spanish Ministerio de Educaci´on y Ciencia. xi #12;#12;Summary In the modern world

Granada, Universidad de

278

UNIVERSIDAD DE GRANADA ESCUELA TECNICA SUPERIOR DE INGENIERIAS  

E-print Network

UNIVERSIDAD DE GRANADA ESCUELA T´ECNICA SUPERIOR DE INGENIER´IAS INFORM´ATICA Y DE TELECOMUNICACI CIENCIAS DE LA COMPUTACI´ON E INTELIGENCIA ARTIFICIAL ESCUELA T´ECNICA SUPERIOR DE INGENIER´IAS INFORM Departamento de Ingenier´ia de dicha Universidad, donde he pasado tan buenos ratos. Tambi´en agradezco a Mario

Granada, Universidad de

279

Universidad Rey Juan Carlos Escuela Tecnica Superior de Ingenieria Informatica  

E-print Network

´agenes mediante un computador, por lo que lo que su aplicaci´on en v´ideo vigilancia resulta m´as que apropiada. En este campo resulta frecuente el seguimiento o detecci´on de elementos m´oviles, siendo menos computador. Una aplicaci´on directa de esto es el seguimiento de objetos desatendidos en zonas de paso, como

Pantrigo Fernández, Juan José

280

Generation IV Nuclear Energy Systems ...  

E-print Network

Generation IV Nuclear Energy Systems ... The U.S. Department of Energy's Office of Nuclear Energy enhance safety and security, and develop nuclear power as an energy source for industrial applications Information ... U.S. Department of Energy www.energy.gov DOE Office of Nuclear Energy www.nuclear

Kemner, Ken

281

Nuclear Energy and the Environment.  

ERIC Educational Resources Information Center

"Nuclear Energy and the Environment" is a pocket folder of removable leaflets concerned with two major topics: Nuclear energy and Nuclear Techniques. Under Nuclear Energy, leaflets concerning the topics of "Radiation--A Fact of Life,""The Impact of a Fact: 1963 Test Ban Treaty,""Energy Needs and Nuclear Power,""Power Reactor Safety,""Transport,"…

International Atomic Energy Agency, Vienna (Austria).

282

Common sense in nuclear energy  

Microsoft Academic Search

Public concern about energy resource exhaustion is noted to have developed only after the means (nuclear power) for avoiding this disaster became available and the negative implications of a nuclear society became a focus for anxiety. Ironically, collapse of conventional energy supplies could lead to the nuclear confrontation which anti-nuclear forces claim as the inevitable outcome of nuclear power. A

F. Hoyle; G. Hoyle

1980-01-01

283

Countering the Nuclear Terrorist Threat  

Microsoft Academic Search

The nuclear\\/radioactive threat to homeland security posed by terrorists can be broken into four categories. Of highest concern is the use of an improvised nuclear device (IND). An IND, as its name implies, is a nuclear explosive device. It produces nuclear yield, and this nuclear yield has catastrophic effects. An IND is the ultimate terrorist weapon, and terrorist groups are

Vantine

2002-01-01

284

Nuclear fuel cycle information workshop  

SciTech Connect

This overview of the nuclear fuel cycle is divided into three parts. First, is a brief discussion of the basic principles of how nuclear reactors work; second, is a look at the major types of nuclear reactors being used and world-wide nuclear capacity; and third, is an overview of the nuclear fuel cycle and the present industrial capability in the US.

Not Available

1983-01-01

285

Gordon Conference on Nuclear Research  

SciTech Connect

Session topics were: quarks and nuclear physics; anomalons and anti-protons; the independent particle structure of nuclei; relativistic descriptions of nuclear structure and scattering; nuclear structure at high excitation; advances in nuclear astrophysics; properties of nuclear material; the earliest moments of the universe; and pions and spin excitations in nuclei.

Austin, S.M.

1983-09-01

286

NUCLEAR ENERGY PERGAMON Annals of Nuclear Energy 27 (2000) 138551398  

E-print Network

annafs of NUCLEAR ENERGY PERGAMON Annals of Nuclear Energy 27 (2000) 138551398 www-4549(00)00033-5 #12;1386 I. Phi!, V. Arzhanov. /Annals qf Nuclear Energy 27 (2000) 1385-1398 subcritical systems (ADS

Pázsit, Imre

2000-01-01

287

Labor and nuclear power  

Microsoft Academic Search

The AFL-CIO is officially pro-nuclear, but tensions within unions are taking issue over ideological differences. The Labor movement, having looked to nuclear power development as an economic necessity to avoid unemployment, has opposed efforts to delay construction or close plants. As many as 42% of union members or relatives of members, however, were found to oppose new power plants, some

R. Logan; D. Nelkin

1980-01-01

288

Why Go Nuclear?  

Microsoft Academic Search

Much has been made of the global expansion of nuclear power. While experts discuss the pros and cons, countries are moving forward with their plans to build new plants. Of all the energy technologies available, why nuclear?Perspectives from the United Arab Emirates, Jordan, Egypt and Thailand

Abdullah bin Zayed Al Nahyan; Kamal J. Araj; Nabil Fahmy; Somporn Chongkum

2008-01-01

289

High energy nuclear structures  

SciTech Connect

In conventional nuclear physics the nucleus is described as a non-relativistic many-body system, which is governed by the Schroedinger equation. Nucleons interact in this framework via static two-body potentials, mesonic degrees of freedom are neglected. An alternative description of nuclear physics in terms of a relativistic field theory has been developed by Walecka. The model Lagrangian containing baryons, sigma-mesons and ..omega..-mesons was subsequently extended to include also ..pi..-mesons and rho-mesons. An essential feature of such a nuclear Lagrangian is its renormalizability. In addition to the description of known nuclear structure the field theoretical approach may reveal entirely new nuclear phenomena, based on the explicit treatment of mesonic degrees of freedom. The existence of such abnormal nuclear states was proposed by Lee and Wick employing the sigma-model Lagrangian. There the non-linearity of the meson field equations allows for soliton solutions in the presence of nucleons, in particular the sigma-field may exhibit a kink. Different types of soliton solutions occur in gauge theories with hidden symmetries. In the phenomenological Lagrangian the rho-meson is described by a non-abelian gauge field, that acquires its mass spontaneously due to the non-vanishing vacuum expectation value of a Higgs field. A general ansatz for soliton solutions of such a gauge theory was given by Dashen et al. A specific solution and its possible implications for nuclear physics like anomalous nuclear states were discussed by Boguta.

Boguta, J.; Kunz, J.

1984-03-09

290

Vertical nuclear proliferation.  

PubMed

All the nuclear-weapon states are working to develop new nuclear-weapon systems and upgrade their existing ones. Although the US Congress has recently blocked further development of small nuclear weapons and earth-penetrating nuclear weapons, the United States is planning a range of new warheads under the Reliable Replacement Warhead programme, and renewing its nuclear weapons infrastructure. The United Kingdom is spending 1 billion pounds sterling on updating the Atomic Weapons Establishment at Aldermaston, and about 20 billion pounds sterling on replacing its Vanguard submarines and maintaining its Trident warhead stockpile. The US has withdrawn from the Anti-Ballistic Missile Treaty and plans to install missile defence systems in Poland and the Czech Republic; Russia threatens to upgrade its nuclear countermeasures. The nuclear-weapon states should comply with their obligations under Article VI of the Non-Proliferation Treaty, as summarised in the 13-point plan agreed at the 2000 NPT Review Conference, and they should negotiate a Nuclear Weapons Convention. PMID:17987977

Sidel, Victor W

2007-01-01

291

Nuclear energy related research  

NASA Astrophysics Data System (ADS)

The annual Research Program Plan describes publicly funded nuclear energy related research to be carried out mainly at the Technical Research Center of Finland (VTT) in 1992. The research is financed primarily by the Ministry of Trade and Industry (KTM), the Finnish Center for Radiation and Nuclear Safety (STUK), and VTT itself. Other research institutes, utilities, and industry also contribute to many projects.

Rintamaa, R.

1992-05-01

292

Radionuclides and Nuclear Waste  

NSDL National Science Digital Library

This resource is a 9-page PDF document that is part of an environmental geochemistry course taught by Dr. David Sherman at the University of Bristol. Topics covered include uranium, strontium, radon, and cesium geochemistry, radioactive decay, sources and uses of nuclear fuel, actinide geochemistry, and the composition of and problems associated with nuclear waste. Informative diagrams accompany the text.

David M. Sherman

293

Israel's nuclear ambiguity  

Microsoft Academic Search

On October 5, 1986, the London Sunday Times published details of secret Israeli nuclear weapons manufacturing, indicating that over the past 20 years Israel may have accumulated a nuclear arsenal of 100 to 200 weapons. While not entirely new, these recent revelations, in contrast to past information, are attributed to an identifiable source: Mordechai Vanunu, a former technician in Israel's

A. Cohen; B. Frankel

1987-01-01

294

Nuclear Medicine CT Angiography  

E-print Network

. Understand the indications for exercise treadmill testing and specific nuclear cardiology tests, safe use patient and learn the importance of physical and pharmacologic stress in nuclear cardiology 3. Interpret angiography studies. 5. Safely conduct exercise tests and interpret exercise electrocardiograms 6. Develop

Ford, James

295

Under the Nuclear Umbrella.  

ERIC Educational Resources Information Center

Entertains the thesis that social work has a stake in the technological-humanistic debate and should greet the recent and spectacular technological failures with protest and alarm. Discusses relationship of nuclear issue and social work, effects of nuclear issue on children, and Chernobyl. Advocates pacifism, activism, and a coherent conception of…

Williams, Leon F.

1987-01-01

296

NUCLEAR PLANT OPERATIONS AND  

E-print Network

NUCLEAR PLANT OPERATIONS AND CONTROL KEYWORDS: moderator temper- ature coefficient, reactivity co reactor Unit 4 of the Ringhals Nuclear Power Plant (Sweden) during fuel cycle 16 is analyzed, 2002 A measurement of the at-power moderator tempera- ture coefficient (MTC) at the pressurized water

Pázsit, Imre

297

Nuclear Taskforce Summation.  

ERIC Educational Resources Information Center

At the end of 1978, there were approximately 230 nuclear-fueled electric generating plants around the world; 72 of these were in the United States. Each plant requires an operations-and-maintenance workforce of 92 people, and attrition occurs at a rate of 8% per year. Requirements for a nuclear taskforce and job training, in view of current…

1979

298

NUCLEAR PLANT OPERATIONS AND  

E-print Network

NUCLEAR PLANT OPERATIONS AND CONTROL KEYWORDS: moderator temper ature coefficient, reactivity co reactor Unit 4 of the Ringhals Nuclear Power Plant (Sweden) during fuel cycle 16 is analyzed, 2002 A measurement of the at-power moderator tempera ture coefficient (MTC) at the pressurized water

Demazière, Christophe

299

Nuclear Power Plant Technician  

ERIC Educational Resources Information Center

The author recognizes a body of basic knowledge in nuclear power plant technoogy that can be taught in school programs, and lists the various courses, aiming to fill the anticipated need for nuclear-trained manpower--persons holding an associate degree in engineering technology. (Author/BP)

Randall, George A.

1975-01-01

300

Nuclear Power Plants. Revised.  

ERIC Educational Resources Information Center

This publication is one of a series of information booklets for the general public published by the United States Atomic Energy Commission. Among the topics discussed are: Why Use Nuclear Power?; From Atoms to Electricity; Reactor Types; Typical Plant Design Features; The Cost of Nuclear Power; Plants in the United States; Developments in Foreign…

Lyerly, Ray L.; Mitchell, Walter, III

301

Nuclear Pulse Propulsion  

Microsoft Academic Search

A general technical description and programmatic review of nuclear pulse propulsion activities over the last decade is presented. Major problem areas are reviewed together with the status of current research efforts. Sufficient technical information is now available to predict achievable propulsion systems performance with a rather high degree of confidence based on current materials and nuclear technology. Expected performance is

J. C. Nance

1965-01-01

302

Nuclear Radiation Detectors  

Microsoft Academic Search

Nuclear radiation detectors are required in all the major fields of nuclear science and technology. They fall into two principal categories, single element detectors and imaging detectors. Single element detectors can be classified into four types, based upon their physical mode of operation. These are 1) Scintillation counters, 2) Gas ionization detectors, a) Ionization chambers, b) Proportional counters, c) Geiger-Mueller

G. A. Morton

1962-01-01

303

Anomalies of nuclear criticality  

SciTech Connect

During the development of nuclear energy, a number of apparent anomalies have become evident in nuclear criticality. Some of these have appeared in the open literature and some have not. Yet, a naive extrapolation or application of existing data, without knowledge of the anomalies, could lead to potentially serious consequences. This report discusses several of these anomalies.

Clayton, E.D.

1979-06-01

304

Nuclear Arms Control Treaties  

NSDL National Science Digital Library

This section contains summaries of all the major arms-control treaties including: Limited Test Ban Treaty, Nuclear Non-Proliferation Treaty, Strategic Arms Limitation Treaty I (Interim Agreement), Anti-Ballistic Missile Treaty, Threshold Test Ban Treaty, Intermediate-Range Nuclear Forces Treaty - INF, Strategic Arms Reduction Treaty, Comprehensive Test Ban Treaty and Strategic Offensive Reductions Treaty.

Christopher Griffith

305

Nuclear fuel element  

SciTech Connect

A nuclear fuel element is described which comprises a fuel body formed of nuclear fuel material and a clad for covering the fuel body. The clad is formed of an austenitic stainless steel containing silicon, titanium and carbon, respectively, in a controlled quantity.

Matsumura, K.; Ochi, Y.; Ozaki, S.

1980-11-18

306

Nuclear ?-decay. II  

Microsoft Academic Search

A general expression for the beta-decay transition amplitude is evaluated, using the decomposition of the nuclear current matrix element into beta-decay form factors as obtained in the previous paper. For the electron radial wave functions the finite nuclear size is taken into account. Formulas for the spectrum shape factor and the polarisation are calculated.

Lothar Schülke

1964-01-01

307

Nuclear axion decay  

Microsoft Academic Search

Nuclear decays are shown to offer a large number of attractive possibilities to search for axions. Some pure isoscalar M1 transitions in light nuclei could have a ratio of axion to gamma decay widths as large as 10-2. RADIOACTIVITY Quantum chromodynamics, axions, nuclear decays.

Augusto Barroso; Nimai C. Mukhopadhyay

1981-01-01

308

Nuclear physics and cosmology  

SciTech Connect

There are important aspects of Cosmology, the scientific study of the large scale properties of the universe as a whole, for which nuclear physics can provide insights. Here, we will focus on Standard Big-Bang Nucleosynthesis and we refer to the previous edition of the School [1] for the aspects concerning the variations of constants in nuclear cosmo-physics.

Coc, Alain [Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), CNRS/IN2P3, Université Paris Sud 11, UMR 8609, Bâtiment 104, F-91405 Orsay Campus (France)

2014-05-09

309

Nuclear magnetic resonance gyroscope  

Microsoft Academic Search

A nuclear magnetic resonance gyroscope which derives angular rotation from the phases of precessing nuclear moments utilizes a single-resonance cel situated in the center of a uniform dc magnetic field. The field is generated by current flow through a circular array of coils between parallel plates. It also utilizes a pump and readout beam and associated electronics for signal processing

F. A. Karwacki; J. Griffin

1985-01-01

310

Nuclear Power Plants  

MedlinePLUS

... The potential danger from an accident at a nuclear power plant is exposure to radiation. This exposure could come from the release of ... Power Plant Emergency If an accident at a nuclear power plant were to release radiation in your area, local authorities would activate warning ...

311

Nuclear Shuttle in Flight  

NASA Technical Reports Server (NTRS)

This 1970 artist's concept shows a Nuclear Shuttle in flight. As envisioned by Marshall Space Flight Center Program Development engineers, the Nuclear Shuttle would deliver payloads to lunar orbit or other destinations then return to Earth orbit for refueling and additional missions.

1970-01-01

312

ECONOMICS OF NUCLEAR SHIPS  

Microsoft Academic Search

The great success of the U. S. submarine Nautilus and the Suez crisis, ; which showed what advantages might arise from large atom-powered tankers, are two ; events which have spurred the nations of the world to investigate the feasibility ; of nuclear power for propulsion at sea. The techniques feasibility of nuclear-; powered sea vessels has been clearly established

T. J. Connolly; J. Jr. Wilhelmsen

1958-01-01

313

Nuclear power installations. [GCR  

Microsoft Academic Search

In a nuclear power installation comprising a fluid-cooled nuclear reactor, main boilers and main coolant circulators driven by steam turbines to circulate coolant fluid through the reactor core and the main boilers, the circulator-driving steam turbines are driven by steam from auxiliary boilers which are also heated by the hot reactor coolant. This steam, after then being reheated by the

1976-01-01

314

Talk About Nuclear Power  

ERIC Educational Resources Information Center

Presents an overview of the relation of nuclear power to human health and the environment, and discusses the advantages and disadvantages of nuclear power as an energy source urging technical educators to inculcate an awareness of the problems associated with the production of energy. Describes the fission reaction process, the hazards of…

Tremlett, Lewis

1976-01-01

315

Nuclear politics in Sweden  

Microsoft Academic Search

Political problems have plagued nuclear development in Sweden, which imports 75% of its energy and all of its uranium even though it has 12% of the world's known U reserves. Communities have consistently vetoed mining projects, and a 1973 moratorium on nuclear power was passed pending a thorough study and creating an atmosphere that has been directly responsible for the

Abrams

1979-01-01

316

Nuclear plant temperature instrumentation  

Microsoft Academic Search

Most critical process temperatures in nuclear power plants are measured using resistance temperature detectors (RTDs) and thermocouples. In addition to excellent reliability and accident survivability, nuclear safety-related RTDs are expected to have good calibration and fast dynamic response time, as these characteristics are important to plant safety and economy. In plants where RTDs are installed in thermowells in the primary

H. M. Hashemian; Jin Jiang

2009-01-01

317

Nuclear physics: Macroscopic aspects  

SciTech Connect

A systematic macroscopic, leptodermous approach to nuclear statics and dynamics is described, based formally on the assumptions {h_bar} {yields} 0 and b/R << 1, where b is the surface diffuseness and R the nuclear radius. The resulting static model of shell-corrected nuclear binding energies and deformabilities is accurate to better than 1 part in a thousand and yields a firm determination of the principal properties of the nuclear fluid. As regards dynamics, the above approach suggests that nuclear shape evolutions will often be dominated by dissipation, but quantitative comparisons with experimental data are more difficult than in the case of statics. In its simplest liquid drop version the model exhibits interesting formal connections to the classic astronomical problem of rotating gravitating masses.

Swiatecki, W.J.

1993-12-01

318

World nuclear outlook 1995  

SciTech Connect

As part of the EIA program to provide energy information, this analysis report presents the current status and projections through 2015 of nuclear capacity, generation, and fuel cycle requirements for all countries in the world using nuclear power to generate electricity for commercial use. It also contains information and forecasts of developments in the uranium market. Long-term projections of US nuclear capacity, generation, and spent fuel discharges for two different scenarios through 2040 are developed for the Department of Energy`s Office of Civilian Radioactive Waste Management (OCRWM). In turn, the OCRWM provides partial funding for preparation of this report. The projections of uranium requirements are provided to the Organization for Economic Cooperation and Development (OECD) for preparation of the Nuclear Energy Agency/OECD report, Summary of Nuclear Power and Fuel Cycle Data in OECD Member Countries.

NONE

1995-09-29

319

World nuclear outlook 1994  

SciTech Connect

As part of the EIA program to provide energy information, this analysis report presents the current status and projections through 2010 of nuclear capacity, generation, and fuel cycle requirements for all countries in the world using nuclear power to generate electricity for commercial use. It also contains information and forecasts of developments in the uranium market. Long-term projections of US nuclear capacity, generation, and spent fuel discharges for three different scenarios through 2040 are developed for the Department of Energy`s Office of Civilian Radioactive Waste Management (OCRWM). In turn, the OCRWM provides partial funding for preparation of this report. The projections of uranium requirements are provided to the Organization for Economic Cooperation and Development (OECD) for preparation of the Nuclear Energy Agency/OECD report, Summary of Nuclear Power and Fuel Cycle Data in OECD Member Countries.

NONE

1994-12-01

320

Nuclear illusion and reality  

SciTech Connect

Lord Zuckerman describes how we can extricate ourselves from nuclear dread. Reviewing the history, technology, the strategies and threats of nuclear weaponry, he argues that the inability to unlearn how to split the atom does not mean there is either sanity or safety in further stockpiling or refining of nuclear weapons. He challenges our beliefs that the use of tactical nuclear weapons in Europe cannot be kept from excalating, our fear of sudden superweapons and defenses, and the premise that scientists, technologists, and arms makers should keep the race going rather than the military because of their vested interests. Given the political will, he contends, a comprehensive ban should not be a difficult treaty to agree to, although efforts to slow down the nuclear arms race have been admittedly disappointing. 92 references.

Zuckerman, S.

1982-01-01

321

OECD Nuclear Energy Agency  

NSDL National Science Digital Library

Based in Paris, the Nuclear Energy Agency (NEA) is a specialized agency within the Organisation for Economic Co-operation and Development (OECD) whose mission is to assist its member countries in "maintaining and further developing, through international co-operation, the scientific, technological and legal bases required for the safe, environmentally friendly and economical use of nuclear energy for peaceful purposes." At the site, visitors can download various policy papers, obtain basic facts about nuclear power and development in the member countries, and read the latest press releases from the NEA. The homepage also serves as a basic introduction to the current activities of the organization, such as the upcoming International Youth Nuclear Congress, its work on nuclear legislation in Eastern Europe, and its latest reports on such timely topics as the regulatory control of radioactive waste management. Visitors may also opt to sign up to receive the latest publications and newsletters from the NEA electronically on this site.

322

Geophysical Studies of the Las Vegas Urban Corridor  

NSDL National Science Digital Library

The Geophysical Studies of the Las Vegas Urban Corridor Area are part of an integrated effort to "geologically characterize the seismic hazards, water resources, and crustal structure of this rapidly growing urban corridor" by the USGS. The informational Web site contains a gravity map of the Las Vegas region, an aeromagnetic map, and a publications link with a list of over a dozen references. Seven of these publications are freely available for download with titles such as "Aeromagnetic Survey of the Amargosa Desert," "Nevada and California: A Tool for Understanding Near-Surface Geology," and Hydrology and Principal Facts for Gravity Stations in the Vicinity of Coyote Spring Valley, Nevada, with Initial Gravity Modeling Results." An interesting collection of unique resources, the site should be of interest to professionals in a wide variety of fields.

323

The nuclear dynamo; Can a nuclear tornado annihilate nations  

SciTech Connect

This paper reports on the development of the hypothesis of a nuclear dynamo for a controlled nuclear fusion reactor. This dynamo hypothesis suggests properties for a nuclear tornado that could annihilate nations if accidentally triggered by a single high yield to weight nuclear weapon detonation. The formerly classified reports on ignition of the atmosphere, the properties of a nuclear dynamo, methods to achieve a nuclear dynamo in the laboratory, and the analogy of a nuclear dynamo to a nuclear tornado are discussed. An unclassified international study of this question is urged.

McNally, J.R. Jr.

1991-01-01

324

US nuclear weapons policy  

SciTech Connect

We are closing chapter one'' of the nuclear age. Whatever happens to the Soviet Union and to Europe, some of the major determinants of nuclear policy will not be what they have been for the last forty-five years. Part of the task for US nuclear weapons policy is to adapt its nuclear forces and the oganizations managing them to the present, highly uncertain, but not urgently competitive situation between the US and the Soviet Union. Containment is no longer the appropriate watchword. Stabilization in the face of uncertainty, a more complicated and politically less readily communicable goal, may come closer. A second and more difficult part of the task is to deal with what may be the greatest potential source of danger to come out of the end of the cold war: the breakup of some of the cooperative institutions that managed the nuclear threat and were created by the cold war. These cooperative institutions, principally the North Atlantic Treaty Organization (NATO), the Warsaw Pact, the US-Japan alliance, were not created specifically to manage the nuclear threat, but manage it they did. A third task for nuclear weapons policy is that of dealing with nuclear proliferation under modern conditions when the technologies needed to field effective nuclear weapons systems and their command and control apparatus are ever more widely available, and the leverage over some potential proliferators, which stemmed from superpower military support, is likely to be on the wane. This paper will make some suggestions regarding these tasks, bearing in mind that the unsettled nature of that part of the world most likely to become involved in nuclear weapons decisions today must make any suggestions tentative and the allowance for surprise more than usually important.

May, M.

1990-12-05

325

Study of Nuclear Physics for Nuclear Fusion  

Microsoft Academic Search

Based on the concept of “damp matching” [1] and the famous d + t fusion data, a conventional quantum mechanics calculation shows that the plasma fusion, muon-catalyzed fusion, and the low-energy nuclear reaction are essentially same in the sense of resonant tunneling through the Coulomb barrier. The good agreement between theory and experimental data justifies the selectivity in resonant tunneling,

Xing Z. Li; Bing Liu; Xian Z. Ren; Jian Tian; Wei Z. Yu; Dong X. Cao

2000-01-01

326

Nuclear Powerplant Safety: Source Terms. Nuclear Energy.  

ERIC Educational Resources Information Center

There has been increased public interest in the potential effects of nuclear powerplant accidents since the Soviet reactor accident at Chernobyl. People have begun to look for more information about the amount of radioactivity that might be released into the environment as a result of such an accident. When this issue is discussed by people…

Department of Energy, Washington, DC. Nuclear Energy Office.

327

Nuclear war, nuclear proliferation, and their consequences  

SciTech Connect

The proceedings of a colloquium convened by the Groupe de Bellerive offers the contributions of Carl Sagan, Gabriel Garcia Marquez, Kenneth Galbraith, Pierre Trudeau, Edward Kennedy, and other eminent scientists, politicians, and strategists on the subject of the proliferation of nuclear weaponry and its potential ramifications.

Sanruddin, A.K.

1986-01-01

328

Las Trans: Negotiating Gender, Personhood, and Citizenship in Chile  

Microsoft Academic Search

“Las Trans,” a group of male-to-female transgender residents living in Arica, Chile, challenge the strict dual-sex, dual-gender system of Chile’s family-oriented society. Chile presents an especially interesting case when analyzing the social position of sexual minorities due to the country’s historically strong ties to the Catholic Church, and, on a political level, the experience of 17 years of dictatorship during

Sydney A. Hare

2012-01-01

329

ATLAS DE LAS AVES EN INVIERNO Servicio de Vida Silvestre  

E-print Network

ATLAS DE LAS AVES EN INVIERNO EN ESPA�A Servicio de Vida Silvestre Subdirección General de Medio? INTRODUCCI�N Gracias a los elevados niveles de organización y calidad técnica alcanzados, los atlas dos atlas editados por Purroy (1997) y Martí y Del Moral (2003), que durante la última década se han

Carrascal, Luis M.

330

CURSO: ADMINISTRACIN ELECTRNICA. IMPLANTACIN DE LAS NUEVAS TECNOLOGAS EN LA  

E-print Network

;CAMPUS VIRTUAL CALENDARIO AULA 15 de abril al 14 de Mayo 2013 (9 de mayo de 10h a 12h taller presencial Administración y Servicios de la URJC Lugar de celebración: Campus Virtual Número de horas lectivas: 21 horas convocatoria se ruega de los asistentes la debida puntualidad a cada una de las clases. Horario y Aula #12

Rey Juan Carlos, Universidad

331

UNIVERSITY OF NEVADA, LAS VEGAS School of Social Work  

E-print Network

UNIVERSITY OF NEVADA, LAS VEGAS School of Social Work SWK 410.2 & SWK 410.2S Professor: Margaret Oakes, Ph.D. SOCIAL WORK PRACTICE I LCSW (Ca.), LMSW-ACP (Tx) Sprin 2003 Office Hours: Mon. 1:30-2:30, 5.M. Or by appointment Credits: 3 Email: moakes@ccmail.nevada.edu Tel: (702) 895-1222 COURSE DESCRIPTION Social Work

Ahmad, Sajjad

332

Solar hot water system installed at Las Vegas, Nevada  

NASA Technical Reports Server (NTRS)

A solar energy hot water system installed in a motor inn at Las Vegas, Nevada is described. The inn is a three story building with a flat roof for installation of the solar panels. The system consists of 1,200 square feet of liquid flat plate collectors, a 2,500 gallon insulated vertical steel storage tank, two heat exchangers, and pumps and controls. The system was designed to supply approximately 74 percent of the total hot water load.

1981-01-01

333

Chemistry and kinetics of LAS acid thermal decomposition  

Microsoft Academic Search

The emission of sulfur dioxide (SO2) from linear alkylbenzene sulfonate (LAS) acid (LASH) at high temperatures has been studied. Rate constants and Arrhenius\\u000a parameters have been determined, enabling estimation of the amount of SO2 evolved under any time\\/temperature combination for risk assessment purposes. Further analysis of the kinetic data and comparison\\u000a with earlier molecular modeling work on the mechanism of

David W. Roberts; Séverine Lejeune

2002-01-01

334

Supporting Our Nation's Nuclear Industry  

ScienceCinema

On the 60th anniversary of the world's first nuclear power plant to produce electricity, Assistant Secretary for Nuclear Energy Peter Lyons discusses the Energy Department's and the Administration's commitment to promoting a nuclear renaissance in the United States.

Lyons, Peter

2013-05-29

335

THz Dynamic Nuclear Polarization NMR  

E-print Network

Dynamic nuclear polarization (DNP) increases the sensitivity of nuclear magnetic resonance (NMR) spectroscopy by using high frequency microwaves to transfer the polarization of the electrons to the nuclear spins. The ...

Nanni, Emilio Alessandro

336

Radiological Effects of Nuclear War.  

ERIC Educational Resources Information Center

Described are the global effects of nuclear war. Discussed are radiation dosages, limited nuclear attacks, strategic arms reductions, and other results reported at the workshop on nuclear war issues in Moscow in March 1988. (CW)

Shapiro, Charles S.

1988-01-01

337

Student Reactions to Nuclear Education.  

ERIC Educational Resources Information Center

Reports on a study that focused on the psychological impact of nuclear education curriculum on middle school students. Concluded that instruction about nuclear issues rarely increases students' fear or worry about nuclear war. (RT)

Christie, Daniel J.; Nelson, Linden

1988-01-01

338

Introduccion Tecnica de backtracking Recorridos secuenciales Recorridos paralelos Conclusiones y trabajos futuros Tecnicas de autooptimizacion en recorridos de  

E-print Network

programaci´on de los usuarios no expertos. #12;Introducci´on T´ecnica de backtracking Recorridos secuenciales dado, programando una t´ecnica particular. Facilitan la programaci´on de los usuarios no expertos. #12. Facilitan la programaci´on de los usuarios no expertos. #12;Introducci´on T´ecnica de backtracking

Giménez, Domingo

339

TECNICA ENDOSCOPICA E TECNICA A CIELO APERTO PER IL TRATTAMENTO DEL DITO A SCATTO: RISULTATI A CONFRONTO  

Microsoft Academic Search

SUMMARY According to our experience and reports found in the literature, the main complaint of patients after an open trigger finger release is pain persistence at the incision site and, in a few cases, scar retraction. For this reason, endoscopic trigger finger release has been introduced in our Unit. In this prospective clinical trial, we operated two consecutive groups of

E. CAVALLI; L. PEGOLI; P. CORTESE; A. GHEZZI; G. PAJARDI

340

GIS methodology for quantifying channel change in Las Vegas, Nevada  

USGS Publications Warehouse

This study applies spatial analyses to examine the consequences of accelerated urban expansion on a hydrologic system over a period of 24 years. Three sets of historical aerial photos are used in a GIS analysis to document the geomorphic history of Las Vegas Wash, which drains the rapidly growing Las Vegas urban area in southern Nevada. New spatial techniques are introduced to make quantitative measurements of the erosion at three specific time intervals in the hydrologic evolution of the channel and floodplain. Unlike other erosion studies that use two different elevation surfaces to assess erosion, this study used a single elevation surface to remove systematic and nonsystemic elevation errors. The spatial analysis quantifies channel changes for discrete time periods, calculates erosion volumes, and provides a foundation to examine how the specific mechanisms related to urban expansion have affected Las Vegas Wash. The erosion calculated over 24 years is the largest documented sediment loss attributed to the effect of rapid urban growth. ?? 2007 American Water Resources Association.

Buckingham, S.E.; Whitney, J.W.

2007-01-01

341

T-2 Nuclear Information Service  

NSDL National Science Digital Library

The T-2 Nuclear Information Service Web Site is presented by Los Alamos National Laboratory, which is operated by the University of California for the US Department of Energy. The site "concentrates on nuclear modeling, nuclear data, cross sections, nuclear masses, ENDF, NJOY data processing, nuclear astrophysics, radioactivity, radiation shielding, data for medical radiotherapy, data for high-energy accelerator applications, data and codes for fission and fusion systems, and more." Visitors can tour the site, browse and view the data, see computer codes for nuclear data, or look at relevant publications (.ps format) about nuclear data and techniques for working with nuclear data.

342

Source Water Assessment for the Las Vegas Valley Surface Waters  

NASA Astrophysics Data System (ADS)

The 1996 amendment to the Safe Drinking Water Act of 1974 created the Source Water Assessment Program (SWAP) with an objective to evaluate potential sources of contamination to drinking water intakes. The development of a Source Water Assessment Plan for Las Vegas Valley surface water runoff into Lake Mead is important since it will guide future work on source water protection of the main source of water. The first step was the identification of the watershed boundary and source water protection area. Two protection zones were delineated. Zone A extends 500 ft around water bodies, and Zone B extends 3000 ft from the boundaries of Zone A. These Zones extend upstream to the limits of dry weather flows in the storm channels within the Las Vegas Valley. After the protection areas were identified, the potential sources of contamination in the protection area were inventoried. Field work was conducted to identify possible sources of contamination. A GIS coverage obtained from local data sources was used to identify the septic tank locations. Finally, the National Pollutant Discharge Elimination System (NPDES) Permits were obtained from the State of Nevada, and included in the inventory. After the inventory was completed, a level of risk was assigned to each potential contaminating activity (PCA). The contaminants of concern were grouped into five categories: volatile organic compounds (VOCs), synthetic organic compounds (SOCs), inorganic compounds (IOCs), microbiological, and radionuclides. The vulnerability of the water intake to each of the PCAs was assigned based on these five categories, and also on three other factors: the physical barrier effectiveness, the risk potential, and the time of travel. The vulnerability analysis shows that the PCAs with the highest vulnerability rating include septic systems, golf courses/parks, storm channels, gas stations, auto repair shops, construction, and the wastewater treatment plant discharges. Based on the current water quality data (prior to treatment), the proximity of Las Vegas Wash to the intake, and the results of the vulnerability analysis of potential contaminating activities, it is determined that the drinking water intake is at a Moderate level of risk for VOC, SOC, and microbiological contaminants. The drinking water intake is at a High level of risk for IOC contaminants. Vulnerability to radiological contamination is Moderate. Source water protection in the Las Vegas Valley is strongly encouraged because of the documented influence of the Las Vegas Wash on the quality of the water at the intake.

Albuquerque, S. P.; Piechota, T. C.

2003-12-01

343

Nuclear Material Management Abstract  

SciTech Connect

Nevada Test Site (NTS) has transitioned from its historical and critical role of weapons testing to another critical role for the nation. This new role focuses on being a integral element in solving the multiple challenges facing the National Nuclear Security Administration (NNSA) with nuclear material management. NTS is positioned to be a solution for other NNSA sites challenged with safe nuclear materials storage and disposition. NNSA, with site involvement, is currently transforming the nuclear stockpile and supporting infrastructure to meet the 2030 vision. Efforts are under way to consolidate and modernize the production complex . With respect to the nuclear material stockpile, the NNSA sites are currently reducing the complex nuclear material inventory through disposition and consolidation. This includes moving material from other sites to NTS. State of the art nuclear material management and control practices at NTS are essential for NTS to ensure that assigned activities are accomplished in a safe, secure, efficient, and environmentally responsible manner. NTS activities and challenges will be addressed.

Jesse C. Schreiber

2007-07-10

344

Evaluated Nuclear Data  

SciTech Connect

This chapter describes the current status of evaluated nuclear data for nuclear technology applications. We start with evaluation procedures for neutron-induced reactions focusing on incident energies from the thermal energy up to 20 MeV, though higher energies are also mentioned. This is followed by examining the status of evaluated neutron data for actinides that play dominant role in most of the applications, followed by coolants/moderators, structural materials and fission products. We then discuss neutron covariance data that characterize uncertainties and correlations. We explain how modern nuclear evaluated data libraries are validated against an extensive set of integral benchmark experiments. Afterwards, we briefly examine other data of importance for nuclear technology, including fission yields, thermal neutron scattering and decay data. A description of three major evaluated nuclear data libraries is provided, including the latest version of the US library ENDF/B-VII.0, European JEFF-3.1 and Japanese JENDL-3.3. A brief introduction is made to current web retrieval systems that allow easy access to a vast amount of up-to-date evaluated nuclear data for nuclear technology applications.

Oblozinsky, P.; Oblozinsky,P.; Herman,M.; Mughabghab,S.F.

2010-10-01

345

Nuclear (multi-)fragmentation  

NASA Astrophysics Data System (ADS)

Nuclear (multi-)fragmentation, defined as the nuclear decay mechanism in which at least three intermediate mass fragments (Z >= 3) are produced, is the disassembly phenomenon specific to hot nuclear matter produced in nuclear collisions at beam energies of 20-100 MeV/nucleon. Considered as the manifestation of the liquid-gas phase transition predicted by nuclear matter mean-field models or an instrument to address the nuclear equation of state, it enjoys for thirty years a vivid scientific interest and motivates the construction of more and more high-performance 4?-detectors allowing for almost complete reaction characterisation on an event-by-event basis. Over the years, many experimental signatures of first- and second-order phase transitions have been proposed and identified in both central and peripheral collisions. Despite their seemingly puzzling messages, coherent understanding of multifragmentation is possible accounting for statistical ensemble inequivalence and finite size effects. Two particular situations will be discussed in detail. The first one corresponds to a multifragmenting medium size nucleus where the expected first-order phase transition is blurred by surface effects. The second one corresponds to an infinitely large system, the clusterized nuclear matter thought to constitute the main sector of baryonic matter in (proto-)neutron stars, where the first-order phase transition is quenched by Coulomb effects. In both cases statistical models with cluster degrees of freedom have been employed.

Raduta, Adriana R.

2013-04-01

346

75 FR 3497 - Entergy Nuclear Operations, Inc., Entergy Nuclear Indian Point 2, LLC, Entergy Nuclear Indian...  

Federal Register 2010, 2011, 2012, 2013, 2014

...through the ``Contact Us'' link located on the...Commission, U.S. Nuclear Regulatory Commission...of section 134 of the Nuclear Waste Policy Act of 1982 (NWPA...Capacity at Civilian Nuclear Power...

2010-01-21

347

75 FR 39057 - Entergy Nuclear Operations, Inc.; Entergy Nuclear Vermont Yankee, LLC; Vermont Yankee Nuclear...  

Federal Register 2010, 2011, 2012, 2013, 2014

...licensee must bring the nuclear reactor to a ``cold-shut-down...General Design Criteria for Nuclear Power Plants,'' to 10 CFR Part 50, Criterion 60, ``Control of Releases of Radioactive...Director of the Office of Nuclear Reactor...

2010-07-07

348

Virtual nuclear weapons  

SciTech Connect

The term virtual nuclear weapons proliferation and arsenals, as opposed to actual weapons and arsenals, has entered in recent years the American lexicon of nuclear strategy, arms control, and nonproliferation. While the term seems to have an intuitive appeal, largely due to its cyberspace imagery, its current use is still vague and loose. The author believes, however, that if the term is clearly delineated, it might offer a promising approach to conceptualizing certain current problems of proliferation. The first use is in a reference to an old problem that has resurfaced recently: the problem of growing availability of weapon-usable nuclear materials in civilian nuclear programs along with materials made `excess` to defense needs by current arms reduction and dismantlement. It is argued that the availability of these vast materials, either by declared nuclear-weapon states or by technologically advanced nonweapon states, makes it possible for those states to rapidly assemble and deploy nuclear weapons. The second use has quite a different set of connotations. It is derived conceptually from the imagery of computer-generated reality. In this use, one thinks of virtual proliferation and arsenals not in terms of the physical hardware required to make the bomb but rather in terms of the knowledge/experience required to design, assemble, and deploy the arsenal. Virtual weapons are a physics reality and cannot be ignored in a world where knowledge, experience, materials, and other requirements to make nuclear weapons are widespread, and where dramatic army reductions and, in some cases, disarmament are realities. These concepts are useful in defining a continuum of virtual capabilities, ranging from those at the low end that derive from general technology diffusion and the existence of nuclear energy programs to those at the high end that involve conscious decisions to develop or maintain militarily significant nuclear-weapon capabilities.

Pilat, J.F.

1997-08-01

349

Nuclear Regulatory Commission issuances  

SciTech Connect

This document is the March 1996 listing of NRC issuances. Included are: (1) NRC orders granting Cleveland Electric Illuminating Company`s petition for review of the ASLB order LBP-95-17, (2) NRC orders relating to the potential disqualification of two commissioners in the matter of the decommissioning of Yankee Nuclear Power Station, (3) ASLB orders pertaining to the Oncology Services Corporation, (4) ASLB orders pertaining to the Radiation Oncology Center, (5) ASLB orders pertaining to the Yankee Nuclear Power Station, and (6) Director`s decision pertaining to the Yankee Nuclear Power Station.

NONE

1996-03-01

350

Mobile nuclear power systems  

NASA Astrophysics Data System (ADS)

Nuclear reactors where the energy comes from nuclear fission and isotopic generators utilizing the energy of the decay of suitable isotopes are discussed. The reactors are used as power sources on board nuclear submarines and other warships, as well as in space and in remote places. Their thermal power ranges from 30 KWth in a satellite to 175 MWth on board an aircraft carrier. Isotopic generators are suitable only for small power demands and are used on board satellites and spaceprobes, automatic weather stations, lighthouses, and marine installations for navigation and observation.

Andersson, Bengt

1988-11-01

351

Fictions of nuclear disaster  

SciTech Connect

This work is critical study of literary interpretations of the nuclear holocaust. The author examines more than 250 stories and novels dealing with the theme of nuclear power and its devastating potential implications. Addressing such topics as the scientist and Armageddon, the role of religion, future evolution and mutation, and the postnuclear society, the author assesses the response of Bradbury, Lessing, Malamud, Shute, Huxley, Vonnegut, Heinlein, and others to the threat of nuclear apocalypse, with in-depth analyses of Alter Miller's A canticle for Leibowitz and Russell Hoban's Riddley Walker.

Dowling, D.

1987-01-01

352

Monitoring international nuclear activity  

SciTech Connect

The LBNL Table of Isotopes website provides primary nuclearinformation to>150,000 different users annually. We have developedthe covert technology to identify users by IP address and country todetermine the kinds of nuclear information they are retrieving. Wepropose to develop pattern recognition software to provide an earlywarning system to identify Unusual nuclear activity by country or regionSpecific nuclear/radioactive material interests We have monitored nuclearinformation for over two years and provide this information to the FBIand LLNL. Intelligence is gleaned from the website log files. Thisproposal would expand our reporting capabilities.

Firestone, R.B.

2006-05-19

353

Nuclear Medicine Annual, 1989  

SciTech Connect

Among the highlights of Nuclear Medicine Annual, 1989 are a status report on the thyroid scan in clinical practice, a review of functional and structural brain imaging in dementia, an update on radionuclide renal imaging in children, and an article outlining a quality assurance program for SPECT instrumentation. Also included are discussions on current concepts in osseous sports and stress injury scintigraphy and on correlative magnetic resonance and radionuclide imaging of bone. Other contributors assess the role of nuclear medicine in clinical decision making and examine medicolegal and regulatory aspects of nuclear medicine.

Freeman, L.M.; Weissmann, H.S.

1989-01-01

354

Advances in Nuclear Energy  

NASA Astrophysics Data System (ADS)

This paper briefly reviews the next generations of nuclear reactors and the perspectives of development of nuclear energy. Advanced reactors will progressively replace the existing ones during the next two decades. Future systems of the fourth generation are planned to be built beyond 2030. These systems have been studied in the framework of the "Generation IV" International Forum. The goals of these systems is to have a considerable increase in safety, be economically competitive and produce a significantly reduced volume of nuclear wastes. The closed fuel cycle is preferred.

Frois, B.

2005-04-01

355

Nuclear Science and Engineering  

NSDL National Science Digital Library

This site, created by the Massachusetts Institute of Technology, provides the available courses in the Nuclear Science and Engineering department. Research and education in nuclear science and engineering first began at MIT in 1948. Despite having roots at MIT that span more than 60 years, nuclear engineering is relatively new compared to other engineering disciplines, and its many applications will benefit society in areas from healthcare and radiation detection to space exploration and advanced materials. This site explores all of areas and provides students and educators valuable insight and documents in the discipline.

356

International Nuclear Safety Center  

NSDL National Science Digital Library

The US Department of Energy's Argonne National Laboratory provides this site, highlighted by nuclear plants and material properties databases. The nuclear plants database can be searched by country, plant type, and operational status, as well as browsed by clickable map. Information retrieved may include location, type of reactor, controlling utility, and suppliers. The material properties database contains selected information on materials by type and property. In addition, there is a safety analysis results bibliographic database, with abstracts on literature (available in the INSC library) on Soviet-designed nuclear power plants. Note that the site is a work in progress and that some areas are not open to the public.

357

Nuclear Cryogenic Propulsion Stage  

NASA Technical Reports Server (NTRS)

The fundamental capability of Nuclear Thermal Propulsion (NTP) is game changing for space exploration. A first generation Nuclear Cryogenic Propulsion Stage (NCPS) based on NTP could provide high thrust at a specific impulse above 900 s, roughly double that of state of the art chemical engines. Characteristics of fission and NTP indicate that useful first generation systems will provide a foundation for future systems with extremely high performance. The role of the NCPS in the development of advanced nuclear propulsion systems could be analogous to the role of the DC-3 in the development of advanced aviation. Progress made under the NCPS project could help enable both advanced NTP and advanced NEP.

Houts, Michael G.; Borowski, S. K.; George, J. A.; Kim, T.; Emrich, W. J.; Hickman, R. R.; Broadway, J. W.; Gerrish, H. P.; Adams, R. B.

2012-01-01

358

ABC's of Nuclear Science  

NSDL National Science Digital Library

Produced by the Lawrence Berkeley National Laboratory, the ABC's of Nuclear Science site gives high school students and perhaps even entry level college students a good general overview of nuclear science. Through descriptions and illustrations, students get to explore nuclear structure; radioactivity; alpha, beta, and gamma decay; half-life; reactions; fusion; fission; cosmic rays; and antimatter. Although only a one-page lesson (except for the antimatter link), the site offers clickable definitions of various words and helpful diagrams that enhance the user's learning experience.

359

Redefining Interrelationship between Nuclear Safety, Nuclear Security and Safeguards  

NASA Astrophysics Data System (ADS)

Since the beginning of this century, the so-called 3Ss (Nuclear Safety, Nuclear Security and Safeguards) have become major regulatory areas for peaceful uses of nuclear energy. In order to rationalize the allocation of regulatory resources, interrelationship of the 3Ss should be investigated. From the viewpoint of the number of the parties concerned in regulation, nuclear security is peculiar with having “aggressors” as the third party. From the viewpoint of final goal of regulation, nuclear security in general and safeguards share the goal of preventing non-peaceful uses of nuclear energy, though the goal of anti-sabotage within nuclear security is rather similar to nuclear safety. As often recognized, safeguards are representative of various policy tools for nuclear non-proliferation. Strictly speaking, it is not safeguards as a policy tool but nuclear non-proliferation as a policy purpose that should be parallel to other policy purposes (nuclear safety and nuclear security). That suggests “SSN” which stands for Safety, Security and Non-proliferation is a better abbreviation rather than 3Ss. Safeguards as a policy tool should be enumerated along with nuclear safety regulation, nuclear security measures and trade controls on nuclear-related items. Trade controls have been playing an important role for nuclear non-proliferation. These policy tools can be called “SSST” in which Trade controls are also emphasized along with Safety regulation, Security measures and Safeguards.

Irie, Kazutomo

360

NUCLEAR ENERGY Annals of Nuclear Energy 32 (2005) 812842  

E-print Network

annals of NUCLEAR ENERGY Annals of Nuclear Energy 32 (2005) 812­842 www of Nuclear Energy 32 (2005) 812­842 background noise is present, this technique is useful to indicate.elsevier.com/locate/anucene Identification and localization of absorbers of variable strength in nuclear reactors C. Demazie`re a,*, G

Demazière, Christophe

2005-01-01

361

Nuclear Technology Series. Course 24: Nuclear Systems and Safety.  

ERIC Educational Resources Information Center

This technical specialty course is one of thirty-five courses designed for use by two-year postsecondary institutions in five nuclear technician curriculum areas: (1) radiation protection technician, (2) nuclear instrumentation and control technician, (3) nuclear materials processing technician, (4) nuclear quality-assurance/quality-control…

Center for Occupational Research and Development, Inc., Waco, TX.

362

Use of cermet fueled nuclear reactors for direct nuclear propulsion  

Microsoft Academic Search

There has been a renewal of interest in Direct Nuclear Propulsion (DNP) because of the Air Force Forecast II recommendation for the development of the technology. Several nuclear concepts have been proposed to meet the Direct Nuclear Propulsion challenge. In this paper we will present results of an initial study of the potential of a cermet fueled nuclear system in

S. K. Bhattacharyya; L. W. Carlson; K. D. Kuczen; N. A. Hanan; R. G. Palmer; J. Von Hoomissen; W. Chiu; R. Haaland

1988-01-01

363

Nuclear Technology Series. Course 23: Nuclear Chemical Processes.  

ERIC Educational Resources Information Center

This technical specialty course is one of thirty-five courses designed for use by two-year postsecondary institutions in five nuclear technician curriculum areas: (1) radiation protection technician, (2) nuclear instrumentation and control technician, (3) nuclear materials processing technician, (4) nuclear quality-assurance/quality-control…

Center for Occupational Research and Development, Inc., Waco, TX.

364

Nuclear Technology Series. Course 5: Introduction to Nuclear Systems.  

ERIC Educational Resources Information Center

This technical specialty course is one of thirty-five courses designed for use by two-year postsecondary institutions in five nuclear technician curriculum areas: (1) radiation protection technician, (2) nuclear instrumentation and control technician, (3) nuclear materials processing technician, (4) nuclear quality-assurance/quality-control…

Center for Occupational Research and Development, Inc., Waco, TX.

365

40 CFR 81.80 - Las Vegas Intrastate Air Quality Control Region.  

Code of Federal Regulations, 2010 CFR

...2010-07-01 false Las Vegas Intrastate Air Quality Control Region. 81.80 Section 81...CONTINUED) DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES Designation of Air Quality Control Regions § 81.80 Las Vegas...

2010-07-01

366

Learning From Houston: How Las Vegas Can Turn Its Economy Around  

E-print Network

could learn a lot from Houston. Much like Las Vegas, Houston was a one-industry town. When Houston and iconic architectural design and have flourishing tourism economies. Now, Las Vegas could leverage its

Ahmad, Sajjad

367

76 FR 35371 - Proposed Modification of the Las Vegas, NV, Class B Airspace Area; Public Meetings  

Federal Register 2010, 2011, 2012, 2013, 2014

...SW., Renton, WA 98057. FOR FURTHER INFORMATION CONTACT: John Gough, Manager, Airspace and Procedures, and Bill Ruggiero, Support Manager Las Vegas, TRACON, 699 Wright Brothers Lane, Las Vegas, NV 89119; telephone: (702) 597-5910....

2011-06-17

368

Nuclear Engineering Education in 21 st Century  

Microsoft Academic Search

Nuclear engineering is concerned with the practical applications of nuclear energy. A nuclear engineer should be able to comprehend the basics of nuclear reactors, commercial nuclear power plant design, advanced or future nuclear systems, and application of nuclear energy. Nuclear engineering in general includes activities in virtually every branch of engineering and that if offers an unusual challenge to those

Farhang Sefidvash

369

Nuclear Fuel Reprocessing  

SciTech Connect

This is an a submission for the Encyclopedia of Sustainable Technology on the subject of Reprocessing Spent Nuclear Fuel. No formal abstract was required for the article. The full article will be attached.

Michael F. Simpson; Jack D. Law

2010-02-01

370

Nuclear material operations manual  

SciTech Connect

This manual provides a concise and comprehensive documentation of the operating procedures currently practiced at Sandia National Laboratories with regard to the management, control, and accountability of nuclear materials. The manual is divided into chapters which are devoted to the separate functions performed in nuclear material operations-management, control, accountability, and safeguards, and the final two chapters comprise a document which is also issued separately to provide a summary of the information and operating procedures relevant to custodians and users of radioactive and nuclear materials. The manual also contains samples of the forms utilized in carrying out nuclear material activities. To enhance the clarity of presentation, operating procedures are presented in the form of playscripts in which the responsible organizations and necessary actions are clearly delineated in a chronological fashion from the initiation of a transaction to its completion.

Tyler, R.P.

1981-02-01

371

Desalting and Nuclear Energy  

ERIC Educational Resources Information Center

Future use of nuclear energy to produce electricity and desalted water is outlined. Possible desalting processes are analyzed to show economic feasibility and the place in planning in world's economic growth. (DS)

Burwell, Calvin C.

1971-01-01

372

PDFs for nuclear targets  

E-print Network

Understanding nuclear effects in parton distribution functions (PDF) is an essential component needed to determine the strange and anti-strange quark contributions in the proton. In addition Nuclear Parton Distribution Functions (NPDF) are critically important for any collider experiment with nuclei (e.g. RHIC, ALICE). Here two next-to-leading order chi^2-analyses of NPDF are presented. The first uses neutral current charged-lepton Deeply Inelastic Scattering (DIS) and Drell-Yan data for several nuclear targets and the second uses neutrino-nucleon DIS data. We compare the nuclear corrections factors (F_2^Fe/F_2^D) for the charged-lepton data with other results from the literature. In particular, we compare and contrast fits based upon the charged-lepton DIS data with those using neutrino-nucleon DIS data.

Karol Kovarik

2010-06-25

373

Nuclear waste management worldwide  

Microsoft Academic Search

Numerous countries around the world are tackling the task of managing nuclear waste. By considering their approaches, we gain a broader perspective on the US program.{copyright} {ital 1997 American Institute of Physics.}

Charles McCombie

1997-01-01

374

Modeling nuclear explosion  

NASA Astrophysics Data System (ADS)

As a result of the Nuclear Test Ban Treaty, no nuclear explosion tests have been performed by the US since 1992. This appreciably limits valuable experimental data needed for improvement of existing weapons and development of new ones, as well as for use of nuclear devices in non-military applications (such as making underground oil reservoirs or compressed air energy storages). This in turn increases the value of numerical modeling of nuclear explosions and of their effects on the environment. We develop numerical codes simulating fission chain reactions in a supercritical U and Pu core and the dynamics of the subsequent expansion of generated hot plasma in order to better understand the impact of such explosions on their surroundings. The results of our simulations (of both above ground and underground explosions) of various energy yields are presented.

Redd, Jeremy; Panin, Alexander

2012-10-01

375

Nuclear radiation detectors  

Microsoft Academic Search

Detectors of nuclear radiation, such as gaseous detectors, scintillators, and semiconductors, are presented through their general properties and with their operating systems. The semiconductor detectors are studied with more details.

Luiz Alexandre Schuch; Daniel Jean Roger Nordemann

1990-01-01

376

Western Nuclear Science Alliance  

SciTech Connect

The primary objective of the INIE program is to strengthen nuclear science and engineering programs at the member institutions and to address the long term goal of the University Reactor Infrastructure and Education Assistance Program.

Steve Reese; George Miller; Stephen Frantz; Denis Beller; Denis Beller; Ed Morse; Melinda Krahenbuhl; Bob Flocchini; Jim Elliston

2010-12-07

377

The Canadian Nuclear FAQ  

NSDL National Science Digital Library

This highly pro-nuclear website offers information not only about nuclear energy in Canada, but about this controversial energy resource more generally. Start with the Introduction and Disclaimer, where Dr. Jeremy Whitlock, the author of the site and a reactor physicist at an Ottawa Valley nuclear power plant, explains the purpose and limitations of the site. Then have a look at the dozens of questions Dr. Whitlock answers with erudite â?? and opinionated â?? precision, covering such broad topics as Cost and Benefits, Safety and Liability, Waste Management, and Security and Non-Proliferation. Also, take a look at the excellent Links and Further Information pages, as well as the Editorials page, which features dozens of pro-nuclear missives. In all, interested readers will find this page well argued and informative.

Whitlock, Jeremy

1996-04-24

378

Nuclear Magnetic Resonance Spectroscopy  

NSDL National Science Digital Library

This website serves as a primer for understanding the fundamentals of NMR spectroscopy. Plenty of useful figures and animations that enhance the understanding of nuclear spin, shielding, and how these phenomena serve as the basis for NMR.

2011-05-18

379

State Nuclear Profiles  

EIA Publications

Presents a summary of current and recent historical data for the nuclear power industry. The data focuses on net summer capacity and net generation for each state, as well as plant specific information for 2010.

2012-01-01

380

Society of Nuclear Medicine  

Cancer.gov

June 14, 2008 12:00 AM - June 18, 2008 12:00 AM Ernest N Morial Convention Center, Booth 419 New Orleans, LA + Add to Outlook Calendar 2008 Annual Meeting Print This Page Society of Nuclear Medicine News & Events

381

International Nuclear Security  

SciTech Connect

This presentation discusses: (1) Definitions of international nuclear security; (2) What degree of security do we have now; (3) Limitations of a nuclear security strategy focused on national lock-downs of fissile materials and weapons; (4) What do current trends say about the future; and (5) How can nuclear security be strengthened? Nuclear security can be strengthened by: (1) More accurate baseline inventories; (2) Better physical protection, control and accounting; (3) Effective personnel reliability programs; (4) Minimize weapons-usable materials and consolidate to fewer locations; (5) Consider local threat environment when siting facilities; (6) Implement pledges made in the NSS process; and (7) More robust interdiction, emergency response and special operations capabilities. International cooperation is desirable, but not always possible.

Doyle, James E. [Los Alamos National Laboratory

2012-08-14

382

Nuclear data interface retrospective  

SciTech Connect

The Nuclear Data Interface (NDI) code library and data formats are the standards for multigroup nuclear data at Los Alamos National Laboratory. NDI's analysis, design, implementation, testing, integration, and maintenance required a ten person-year and ongoing effort by the Nuclear Data Team. Their efforts provide a unique, contemporary experience in producing a standard component library. In reflection upon that experience at NDI's decennial, we have identified several factors critical to NDI's success: it addressed real problems with appropriate simplicity, it fully supported all users, it added extra value through the code to the raw nuclear data, and its team went the distance from analysis through maintenance. In this report we review these critical success factors and discuss their implications for future standardization projects.

Gray, Mark G [Los Alamos National Laboratory

2008-01-01

383

Nuclear medicine annual, 1985  

SciTech Connect

This book is intended to help physicians to keep current with major developments in investigational and interventional nuclear medicine. Each volume reviews topics of medical imaging. Technological advances in instrumentation, radiopharmaceuticals, and their clinical applications are explored in depth.

Freeman, L.M.; Weissmann, H.S.

1985-01-01

384

After nuclear war - a nuclear winter  

SciTech Connect

The environmental and biological consequences of nuclear war were discussed by more than 100 eminent biologists, physicists and atmospheric scientists at the recent World after Nuclear War conference. The long-term effects were determined to be worse than the well-known immediate effects. They predicted that 225 million tons of smoke would be generated within a few days in their baseline scenario. As a result, the amount of sunlight reaching the earth would be reduced to a few percent of normal and temperatures would fall to -23/sup 0/C. About 30% of the northern middle latitudes would receive more than 250 rads radiation dose for several months and about 50% of the land area would receive more than 100 rads. Dangerous levels of solar ultraviolet light would burn through the atmosphere. It was also determined that these effects would be felt in the southern hemisphere. Those who survived the blast, fire and prompt radiation would face starvation from shutdown of plant photosynthesis and inhibition of phytoplankton photosynthesis. Huge wildfires and acid rains would stress any surviving plants and animals. Conference participants agreed that scientists had taken a new and significant step toward understanding the full consequences of nuclear war.

Tangley, L.

1984-01-01

385

Nuclear Power Plant  

NSDL National Science Digital Library

This lesson introduces students to the basics of nuclear energy production. Topics include radioisotope thermoelectric generators, natural decay of radioactive isotopes, and chain reactions. There is also a discussion of how to control a chain reaction and some concepts of reactor design. The lesson includes an activity in which students operate an online simulation of a nuclear power plant, attempting to keep power output as high as possible without losing control of the reaction.

John Pratte

386

Nuclear Protein Transport Pathways  

Microsoft Academic Search

Nuclear proteins like transcription factors and ribosomal proteins are synthesized in the cytoplasm and have to be transported into the nucleus to fulfill their functions. The transport of proteins >20–60 kD through the nuclear pore complex (NPC) into the nucleus is an active, energy-requiring process. Transport substrates are recognized by their transport proteins via certain signals. The best-characterized protein import

Matthias Köhler; Hermann Haller; Enno Hartmann

1999-01-01

387

Nuclear Plant Inspection  

NASA Technical Reports Server (NTRS)

Engineers from the Power Authority of the State of New York use a Crack Growth Analysis Program supplied by COSMIC (Computer Software Management and Information Center) in one stage of nuclear plant inspection. Welds of the nuclear steam supply system are checked for cracks; radiographs, dye penetration and visual inspections are performed to locate cracks in the metal structure and welds. The software package includes three separate crack growth analysis models and enables necessary repairs to be planned before serious problems develop.

1983-01-01

388

Nuclear magnetic resonance gyroscope  

SciTech Connect

A nuclear magnetic resonance gyro using two nuclear magnetic resonance gases, preferably xenon 129 and xenon 131, together with two alkaline metal vapors, preferably rubidium, potassium or cesium, one of the two alkaline metal vapors being pumped by light which has the wavelength of that alkaline metal vapor, and the other alkaline vapor being illuminated by light which has the wavelength of that other alkaline vapor.

Grover, B.C.

1984-02-07

389

Israel's nuclear ambiguity  

SciTech Connect

On October 5, 1986, the London Sunday Times published details of secret Israeli nuclear weapons manufacturing, indicating that over the past 20 years Israel may have accumulated a nuclear arsenal of 100 to 200 weapons. While not entirely new, these recent revelations, in contrast to past information, are attributed to an identifiable source: Mordechai Vanunu, a former technician in Israel's Dimona nuclear facility. The prompt Israeli action that brought Vanunu to Israel to stand trial indicates how seriously the Israeli government has treated his story. The revelations bring into sharp focus the peculiar features of Israel's nuclear posture and the difficulty inherent in any serious discussion of the subject - notably the secrecy that has surrounded the program since its inception. To Israelis, no defense-related topic more sensitive. Although there is some evidence of internal debate at key junctures in the history of the Israeli nuclear project, there has never been any serious public questioning of the program, or its direction, from its inception three decades ago to the present, a period spanning the tenures of seven prime ministers. In view of the above revelations, the authors review Israel's nuclear weapons policy, deliberately ambiguous, and discuss possible alternatives in the context of possible nonproliferation efforts by the superpowers. 14 references, 2 figures.

Cohen, A.; Frankel, B.

1987-03-01

390

Superpower nuclear minimalism  

SciTech Connect

During the Cold War, the United States and the Soviet Union competed in building weapons -- now it seems like America and Russia are competing to get rid of them the fastest. The lengthy process of formal arms control has been replaced by exchanges of unilateral force reductions and proposals for reciprocal reductions not necessarily codified by treaty. Should superpower nuclear strategies change along with force postures President Bush has yet to make a formal pronouncement on post-Cold War American nuclear strategy, and it is uncertain if the Soviet/Russian doctrine of reasonable sufficiency formulated in the Gorbachev era actually heralds a change in strategy. Some of the provisions in the most recent round of unilateral proposals put forth by Presidents Bush and Yeltsin in January 1992 are compatible with a change in strategy. Whether such a change has actually occurred remains to be seen. With the end of the Cold War and the breakup of the Soviet Union, the strategic environment has fundamentally changed, so it would seem logical to reexamine strategy as well. There are two main schools of nuclear strategic thought: a maximalist school, mutual assured destruction (MAD) which emphasizes counterforce superiority and nuclear war- fighting capability, and a MAD-plus school, which emphasizes survivability of an assured destruction capability along with the ability to deliver small, limited nuclear attacks in the event that conflict occurs. The MAD-plus strategy is based on an attempt to conventionalize nuclear weapons which is unrealistic.

Graben, E.K.

1992-01-01

391

La ciencia del lenguaje estudia el fenmeno de las TIC, redes sociales y nuevas formas de comunicacin en la UA  

E-print Network

La ciencia del lenguaje estudia el fenómeno de las TIC, redes sociales y nuevas formas de comunicación en la UA Alicante, 8 de marzo de 2013 Las TIC, las redes sociales y las nuevas formas de.0: las TIC, redes sociales y nuevas formas de comunicación" comienza el lunes 11 de marzo de 2013 y hasta

Escolano, Francisco

392

18 CFR 1316.9 - Nuclear energy hazards and nuclear incidents.  

Code of Federal Regulations, 2012 CFR

...2012-04-01 2012-04-01 false Nuclear energy hazards and nuclear incidents...Certifications § 1316.9 Nuclear energy hazards and nuclear incidents...such documents or actions: Nuclear Energy Hazards and Nuclear...

2012-04-01

393

18 CFR 1316.9 - Nuclear energy hazards and nuclear incidents.  

Code of Federal Regulations, 2011 CFR

...2011-04-01 2011-04-01 false Nuclear energy hazards and nuclear incidents...Certifications § 1316.9 Nuclear energy hazards and nuclear incidents...such documents or actions: Nuclear Energy Hazards and Nuclear...

2011-04-01

394

18 CFR 1316.9 - Nuclear energy hazards and nuclear incidents.  

Code of Federal Regulations, 2013 CFR

...2013-04-01 2012-04-01 true Nuclear energy hazards and nuclear incidents...Certifications § 1316.9 Nuclear energy hazards and nuclear incidents...such documents or actions: Nuclear Energy Hazards and Nuclear...

2013-04-01

395

18 CFR 1316.9 - Nuclear energy hazards and nuclear incidents.  

Code of Federal Regulations, 2014 CFR

...2014-04-01 2014-04-01 false Nuclear energy hazards and nuclear incidents...Certifications § 1316.9 Nuclear energy hazards and nuclear incidents...such documents or actions: Nuclear Energy Hazards and Nuclear...

2014-04-01

396

18 CFR 1316.9 - Nuclear energy hazards and nuclear incidents.  

Code of Federal Regulations, 2010 CFR

...2010-04-01 2010-04-01 false Nuclear energy hazards and nuclear incidents...Certifications § 1316.9 Nuclear energy hazards and nuclear incidents...such documents or actions: Nuclear Energy Hazards and Nuclear...

2010-04-01

397

TDRSS ground terminal located in Las Cruces, New Mexico  

NASA Technical Reports Server (NTRS)

Tracking and Data Relay Satellite System (TDRSS) ground terminal located in the desert just south of Las Cruces, New Mexico. This ground terminal serves as the nerve center for TDRSS communications. The White Sands Ground Terminal (WSGT) has been in operation since 1983. An additional TDRSS ground station, to serve the growing needs of space communications in the 1990's, is under construction just three miles north of this existing terminal. The new $1.8 million terminal is expected to be completed in 1989 and be in operation in 1993.

1988-01-01

398

El libro del Relogio del Palacio de las Horas  

NASA Astrophysics Data System (ADS)

This paper resume the investigation entitled ``El libro del Relogio del Palacio de las Horas''. That consist in an edition of the original text of the book of the Clock of the Palace of the Hours from the Books of the knowledge of Astronomy of Alfonso X (Manuscript 156, Complutense University). And a description of the astronomical functionality of the Clock of the Palace of the Hours. It includes a geometric description of the positional astronomy on which the operation of the Palace is based.

Morales, J. D.

2009-08-01

399

Nuclear Reactions and Reactor Safety  

E-print Network

successful nuclear power "plant" : 1942 Famous names: J Robert Oppenheimer, Richard Feynman, Enrico Fermi to ask me some questions about the plot! #12;Nuclear Chain Reactions to Nuclear Power Plants And now, we explosions? or ? -Controlled nuclear chain reactions possible: control energy release/sec -> More

Onuchic, José

400

Nuclear weapons and international law  

SciTech Connect

Using two different perspectives, this collection of essays addresses the central legal question of whether the manufacture, deployment, and potential use of nuclear weapons is lawful. In addition, individual chapters focus on a variety of topical issues, including nuclear weapon free zones, nuclear testing, international law and regulations, nuclear weapons and nonproliferation, anti-ballistic missile systems, and the Strategic Defense Initiative.

Pogany, I.

1987-01-01

401

Thinking About Preventing Nuclear War.  

ERIC Educational Resources Information Center

Potential paths to nuclear war and the available means of prevention of nuclear war are discussed. Presented is a detailed description of six nuclear war scenarios, and brief examples of types of potential deterrents to nuclear war (firebreaks) which are relevant for each. To be effective, the right combination of firebreaks must be used, the…

Ground Zero, Washington, DC.

402

Distrust and the Nuclear Doctrine  

Microsoft Academic Search

Abstract. A generation ago, rampant economic problems and perceived risk of nuclear power brought the industry to a halt on applying for new construction permits. Because of the military history of nuclear technology, development of the existing nuclear power infrastructure during the Cold War, and contemporary discussion about nuclear power offering a reduced carbon footprint, it has emerged as a

J. d. Wulfhorst

403

International nuclear trade and nonproliferation  

Microsoft Academic Search

The purpose of this book, the culmination of one phase of an ongoing international research project on nuclear suppliers and nonproliferation, is to explore the international political and economic dimensions of nuclear trade, especially as they pertain to the behavior of eleven emerging nuclear-supplier states. More specifically, the book sets forth a conceptual framework for analyzing international nuclear trade; details

1990-01-01

404

Nuclear Energy Research Brookhaven National  

E-print Network

-Driven Systems ~90 Fusion Test Facilities (2 major in US) #12;Nuclear Science and Technology Department 55Nuclear Energy Research Brookhaven National Laboratory William C. Horak, Chair Nuclear Science and Technology Department #12;BNL Nuclear Energy Research Brookhaven Graphite Research Reactor - 1948 National

Ohta, Shigemi

405

Britain`s nuclear quandary  

SciTech Connect

This article is review of energy policy in the United Kingdom, in particular, the British government`s review of the nuclear industry. Major topics of this review include: (1) The economic viability of new nuclear stations, (2) The privitization of the nuclear industry, (3) Nuclear waste disposal, and (4) Liabilities associated with decommissioning.

NONE

1994-07-01

406

Nuclear War and Science Teaching.  

ERIC Educational Resources Information Center

Suggests that science-related material on nuclear war be included in introductory courses. Lists nuclear war topics for physics, psychology, sociology, biology/ecology, chemistry, geography, geology/meteorology, mathematics, and medical science. Also lists 11 lectures on nuclear physics which include nuclear war topics. (JN)

Hobson, Art

1983-01-01

407

La Universidad de Alicante inaugura las X Jornadas de Redes de Investigacin en Docencia Universitaria  

E-print Network

La Universidad de Alicante inaugura las X Jornadas de Redes de Investigación en Docencia edición de las Jornadas Redes de Investigación Universitaria, en el Salón de Actos del Aulario II, con la participación y el compromiso de la comunidad universitaria" como tema central, las X Jornadas Redes de

Escolano, Francisco

408

Dos médicos y una causa: Len Crome y Reginald Saxton en las Brigadas Internacionales  

Microsoft Academic Search

Una de las dimensiones más impresionantes, más duraderas y menos conocidas de las Brigadas Internacionales era la aportación de sus servidos médicos. Las aportaciones de los distintos médicos, españoles e internacionales, fueron de una importancia colosal en el desarrollo posterior de la medicina traumatològica, en guerra y en paz. Menos conocida fue la labor abnegada de conductores de ambulancias, enfermeras

Paul Preston

2004-01-01

409

Determinantes de las respuestas a vacunas orales en países en vías de desarrollo  

Microsoft Academic Search

ExtractoLas vacunas orales que se han diseñado para uso global no inducen necesariamente las mismas respuestas inmunitarias en todos los niños de todo el mundo. De hecho, varias vacunas inducen a menudo respuestas medias de anticuerpos menos frecuentes y menores en niños en países en vías de desarrollo, lo que permite suponer que las vacunas pueden producir un efecto menos

David A. Sack; Firdausi Qadri; Ann-Mari Svennerholm

2008-01-01

410

Language Assessment Scales, LAS I, for Grades K-5, English/Spanish. Second Edition.  

ERIC Educational Resources Information Center

Language Assessment Scales, LAS I, are designed for children in grades K-5. LAS I accommodates ethnic and linguistic differences and provides direct language activities taken from the popular culture of both English- and Spanish-speaking peoples. LAS I consists of two independent tests, one in English and the other in Spanish, presented largely on…

De Avila, Edward A.; Duncan, Sharon E.

411

Globalización y multiculturalismo: ¿son posibles las democracias multiculturales en la era del globalismo?  

Microsoft Academic Search

La globalización y el multiculturalismo son dos realidades relacionadas. El aumento de las desigualdades económicas en el mundo ha conllevado la emigración desde las zonas menos desarrolladas hacia las más prósperas, lo que ha supuesto la llegada a los países occidentales de gentes con diversas culturas. Pero, al mismo tiempo, la globalización, en tanto encarnación del neoliberalismo económico, ha supuesto

Carlos Manuel Abella Vázquez

2007-01-01

412

E-strategias en la introducción y uso de las TIC en la universidad  

Microsoft Academic Search

Las tecnologías de la información y de la comunicación (TIC) se han asentado plenamente en las universidades españolas a lo largo de la última década. Sin duda, esto está comportando un cambio significativo en la dinámica interna de las instituciones: en la forma de planificar y desarrollar la docencia universitaria, en la administración académica y en los servicios a los

Josep M. Duart; Francisco Lupiáñez

2008-01-01

413

Las TICs como factor de inclusión social. Programa aplicado en Galicia, España  

Microsoft Academic Search

Con el avance de la investigación sobre la cohesión social y las personas en colectivos de alto riesgo de exclusión social se torna más relevante el papel jugado por las familias en sus propias perspectivas de inclusión social y vida futura. El colectivo de las personas con diversidad funcional de solicita el correcto funcionamiento de sus grupos de referencia, para

Manoel Baña Castro; Isabel Novo Cortí; Beatríz López González

2010-01-01

414

The Writing Center 4505 South Maryland Parkway Box 455043 Las Vegas, Nevada 89154-5043  

E-print Network

The Writing Center 4505 South Maryland Parkway Box 455043 Las Vegas, Nevada 89154-5043 (702) 895-3908 March 23, 2010 Dean Christopher C. Hudgins University of Nevada, Las Vegas College of Liberal Arts Box 455001 4505 South Maryland Parkway Las Vegas, Nevada 89154-5001 Subject: English Language Center Dear

Ahmad, Sajjad

415

Inversion Industrial y Empleo en las regiones españolas. 1976-1995  

Microsoft Academic Search

En este trabajo presentamos la evolucion del empleo en las comunidades autonomas españolas, analizando las diferencias regionales y teniendo en cuenta el importante papel que la inversion industrial tiene como elemento dinamizador de la produccion y el empleo de los sectores no agrarios, tanto desde el punto de vista de la oferta como de la demanda. Todas las regiones españolas

Eva Aguayo; M. Carmen Guisan

2001-01-01

416

Ineficiencia en la Distribución de Energía Eléctrica: Una Aplicación de las Funciones de Distancia Estocástica  

Microsoft Academic Search

Este documento evalúa el desempeño de las empresas distribuidoras de energía durante el periodo 1999-2003, utilizando la metodología de funciones de distancia estocástica, la cual a través de la estimación de las desviaciones de una función ideal de producción, permite medir los niveles de eficiencia técnica de las diferentes empresas. Los resultados indican que existen diferencias significativas en el desempeño

Ligia Melo B; Nestor Espinosa

417

Ineficiencia en la distribución de energía eléctrica: una aplicación de las funciones de distancia estocástica  

Microsoft Academic Search

En este documento se evalúa el desempeño de las empresas distribuidoras de energía durante el período 1999-2003, utilizando la metodología de funciones de distancia estocástica, la cual, a través de la estimación de las desviaciones de una función ideal de producción, permite medir los niveles de eficiencia técnica de las diferentes empresas. Los resultados indican que existen diferencias significativas en

Ligia Melo; Néstor Espinosa

2005-01-01

418

Energía, industria y medio rural: el caso de las zonas de montaña españolas, 1850-2000  

Microsoft Academic Search

El trabajo analiza las relaciones entre recursos energéticos, actividades industriales y economías rurales en el marco del desarrollo de la España contemporánea, tomando como muestra las 84 principales comarcas montañosas del país. Para ello se han reconstruido series estadísticas acerca de la minería del carbón, la producción eléctrica o el grado de intensidad industrial de las diferentes zonas de montaña.

Fernando Collantes

2003-01-01

419

CALCULADORAS GRÁFICAS Y PRECÁLCULO : EL IMPACTO EN LAS CREENCIAS DEL PROFESOR  

Microsoft Academic Search

La investigación pretende establecer cuál es el impacto del uso de las calculadoras gráficas sobre el sistema de creencias del profesor. Para tal efecto, se ha tomado como marco de referencia general de los sistemas de creencias de los profesores de matemáticas la tipología de Paul Ernest sobre las concepciones de las matemáticas, su enseñanza, aprendizaje, objetivos y materiales instruccionales.

Cristina Gómez; Paola Valero

420

Panel report: nuclear physics  

SciTech Connect

Nuclear science is at the very heart of the NNSA program. The energy produced by nuclear processes is central to the NNSA mission, and nuclear reactions are critical in many applications, including National Ignition Facility (NIF) capsules, energy production, weapons, and in global threat reduction. Nuclear reactions are the source of energy in all these applications, and they can also be crucial in understanding and diagnosing the complex high-energy environments integral to the work of the NNSA. Nuclear processes are complex quantum many-body problems. Modeling and simulation of nuclear reactions and their role in applications, coupled tightly with experiments, have played a key role in NNSA's mission. The science input to NNSA program applications has been heavily reliant on experiment combined with extrapolations and physical models 'just good enough' to provide a starting point to extensive engineering that generated a body of empirical information. This body of information lacks the basic science underpinnings necessary to provide reliable extrapolations beyond the domain in which it was produced and for providing quantifiable error bars. Further, the ability to perform additional engineering tests is no longer possible, especially those tests that produce data in the extreme environments that uniquely characterize these applications. The end of testing has required improvements to the predictive capabilities of codes simulating the reactions and associated applications for both well known and well characterized cases as well as incompletely known cases. Developments in high performance computing, computational physics, applied mathematics and nuclear theory have combined to make spectacular advances in the theory of fission, fusion and nuclear reactions. Current research exploits these developments in a number of Office of Science and NNSA programs, and in joint programs such as the SciDAC (Science Discovery through Advanced Computing) that supports the project Building a Universal Nuclear Energy Density Fuctional whose goals are to provide the unified approach to calculating the properties of nuclei. The successful outcome of this, and similar projects is a first steps toward a predictive nuclear theory based on fundamental interactions between constituent nucleons. The application of this theory to the domain of nuclei important for national security missions will require computational resources at the extreme scale, beyond what will be available in the near term future.

Carlson, Joseph A [Los Alamos National Laboratory; Hartouni, Edward P [LLNL

2010-01-01

421

Nuclear Regulatory Commission information digest  

SciTech Connect

The Nuclear Regulatory Commission information digest provides summary information regarding the US Nuclear Regulatory Commission, its regulatory responsibilities, and areas licensed by the commission. This is an annual publication for the general use of the NRC Staff and is available to the public. The digest is divided into two parts: the first presents an overview of the US Nuclear Regulatory Commission and the second provides data on NRC commercial nuclear reactor licensees and commercial nuclear power reactors worldwide.

None,

1990-03-01

422

SOURCE AND PATHWAY DETERMINATION FOR BERYLLIUM FOUND IN BECHTEL NEVADA NORTH LAS VEGAS FACILITIES  

SciTech Connect

In response to the report ''Investigation of Beryllium Exposure Cases Discovered at the North Las Vegas Facility of the National Nuclear Security Administration'', published by the U.S. Department of Energy (DOE), National Nuclear Security Administration (NNSA) in August 2003, Bechtel Nevada (BN) President and General Manager Dr. F. A. Tarantino appointed the Beryllium Investigation & Assessment Team (BIAT) to identify both the source and pathway for the beryllium found in the North Las Vegas (NLV) B-Complex. From September 8 to December 18, 2003, the BIAT investigated the pathway for beryllium and determined that a number of locations existed at the Nevada Test Site (NTS) which could have contained sufficient quantities of beryllium to result in contamination if transported. Operations performed in the B-1 Building as a result of characterization activities at the Engine Maintenance, Assembly, and Disassembly (EMAD); Reactor Maintenance, Assembly, and Disassembly (RMAD); Test Cells A and C; and the Central Support Facility in Area 25 had the greatest opportunity for transport of beryllium. Investigative monitoring and sampling was performed at these sites with subsequent transport of sample materials, equipment, and personnel from the NTS to the B-1 Building. The timeline established by the BIAT for potential transport of the beryllium contamination into the B-1 Building was from September 1997 through November 2002. Based on results of recently completed swipe sampling, no evidence of transport of beryllium from test areas has been confirmed. Results less than the DOE beryllium action level of 0.2 ???g/100 cm2 were noted for work support facilities located in Area 25. All of the identified sites in Area 25 worked within the B-1 tenant's residency timeline have been remediated. Legacy contaminants have either been disposed of or capped with clean borrow material. As such, no current opportunity exists for release or spread of beryllium contamination. Historical records indicate that there are locations at the NTS which contain hazardous quantities of beryllium; however, because beryllium was not always considered a contaminant of concern, complete characterization was not performed prior to remediation efforts. Today, it is not practical to characterize Area 25 for beryllium due to the successful remediation. Analysis of sample data collected in B-1 for the BIAT was performed for the purpose of confirming past results and identifying a source of beryllium through the use of markers. The results confirmed the presence of man-made beryllium contamination in the B-1 High Bay at levels consistent with the NNSA Report. No source markers were found that would be associated with NTS historical nuclear rocket or weapons-related operations. Beryllium contamination was identified in the southwest area of the B-1 High Bay in characteristic association with materials handled during historic metal-working operations. Use of source marker analysis suggests a contributor of beryllium found in carpeted areas of the B-Complex may be naturally occurring. Naturally occurring beryllium is not regulated by Title 10 Code of Federal Regulations Part 850 (10 CFR 850) (see Appendix A). No current uncontrolled beryllium source or transport pathways have been identified as available for spread of contamination to uncontrolled areas from the NTS.

BECHTEL NEVADA

2004-07-01

423

NESST: A nuclear energy safety and security treaty-Separating nuclear energy from nuclear weapons  

NASA Astrophysics Data System (ADS)

Fission and Fusion energy is matched by the need to completely separate civilian energy programmes from the production of nuclear weapons. The Nuclear Proliferation Treaty (NPT, 1968) muddles these issues together. The case is presented here for making a new Nuclear Energy Security Treaty (NESST) which is rigorous, enforceable without violence, and separate from the political quagmire of nuclear weapons.

McNamara, Brendan

2012-06-01

424

Nuclear ``pasta'' formation  

NASA Astrophysics Data System (ADS)

The formation of complex nonuniform phases of nuclear matter, known as nuclear pasta, is studied with molecular dynamics (MD) simulations containing 51200 nucleons. A phenomenological nuclear interaction is used that reproduces the saturation binding energy and density of nuclear matter. Systems are prepared at an initial density of 0.10fm-3 and then the density is decreased by expanding the simulation volume at different rates to densities of 0.01fm-3 or less. An originally uniform system of nuclear matter is observed to form spherical bubbles (“swiss cheese”), hollow tubes, flat plates (“lasagna”), thin rods (“spaghetti”) and, finally, nearly spherical nuclei with decreasing density. We explicitly observe nucleation mechanisms, with decreasing density, for these different pasta phase transitions. Topological quantities known as Minkowski functionals are obtained to characterize the pasta shapes. Different pasta shapes are observed depending on the expansion rate. This indicates nonequilibrium effects. We use this to determine the best ways to obtain lower energy states of the pasta system from MD simulations and to place constraints on the equilibration time of the system.

Schneider, A. S.; Horowitz, C. J.; Hughto, J.; Berry, D. K.

2013-12-01

425

Extremes of nuclear structure  

NASA Astrophysics Data System (ADS)

With the advent of medium and large gamma detector arrays, it is now possible to look at nuclear structure at high rotational forces. The role of pairing correlations and their eventual breakdown, along with the shell effects have showed us the interesting physics for nuclei at high spins - superdeformation, shape co-existence, yrast traps, alignments and their dramatic effects on nuclear structure and so on. Nuclear structure studies have recently become even more exciting, due to efforts and possibilities to reach nuclei far off from the stability valley. Coupling of gamma ray arrays with 'filters', like neutron wall, charged particle detector array, gamma ray total energy and multiplicity castles, conversion electron spectrometers etc gives a great handle to study nuclei produced online with 'low' cross-sections. Recently we studied, nuclei in mass region 80 using an array of 8 germanium detectors in conjunction with the recoil mass analyser, HIRA at the Nuclear Science Centre and, most unexpectedly came across the phenomenon of identical bands, with two quasi-particle difference. The discovery of magnetic rotation is another highlight. Our study of light In nucleus, 107In brought us face to face with the 'dipole' bands. I plan to discuss some of these aspects. There is also an immensely important development - that of the 'radioactive ion beams'. The availability of RIB, will probably very dramatically influence our 'conventional' concept of nuclear structure. The exotic shapes of these exotic nuclei and some of their expected properties will also be touched upon.

1999-09-01

426

La Fundacin Banesto y el Observatorio de Insercin Laboral de la Universidad de Alicante ensearn a las PYMES el uso de las redes  

E-print Network

a las PYMES el uso de las redes sociales para mejorar sus negocios Alicante, 7 de septiembre de 2011 Dirigido a empresarios, emprendedores y comerciantes, el taller "Redes Sociales y Web 2.0: cómo vender más Alicante a participar en el taller "Redes Sociales y Web 2.0: cómo vender más y mejor. En el taller, que

Escolano, Francisco

427

Elementos de política, riesgos ante el cambio climático, complementariedad entre las FNCE y el sin, y costos indicativos de las FNCE  

Microsoft Academic Search

En este documento se presentan y analizan las experiencias internacionales en políticas para el desarrollo de las FNCE en la Unión Europea y en varios países de la Unión (Alemania, España y Croacia). También se presentan y analizan estas experiencias en varios países de América Latina (Méjico, Perú y Brasil). En el capítulo tercero, se analizan elementos de política en

Ernesto Torres; José Maria Rincón; Edinson Lozano

2011-01-01

428

ÓPTIMO DE COBERTURA VEGETAL EN RELACIÓN A LAS PÉRDIDAS DE SUELO POR EROSIÓN HÍDRICA Y LAS PÉRDIDAS DE LLUVIA POR INTERCEPTACIÓN  

Microsoft Academic Search

RESUMEN Se establece, en una primera aproximación, el óptimo de cobertura en función de las pér- didas de suelo por erosión hídrica y de las pérdidas de lluvia por interceptación, en un mato- rral (romeral), en condiciones ambientales semiáridas mediterráneas, con un mismo tipo de suelo y dos tramos de pendiente de ladera, 11% y 25%. Se utiliza el promedio

Belmonte Serrato; Romero Díaz; López Bermúdez; E. Hernández Laguna

429

OFF-SITE ENVIRONMENTAL MONITORING REPORT: RADIATION MONITORING AROUND UNITED STATES NUCLEAR TEST AREAS, CALENDAR YEAR 1987  

EPA Science Inventory

This report covers the routine radiation monitoring activities conducted by the Environmental Monitoring Systems Laboratory-Las Vegas in areas which may be affected by nuclear testing programs of the Department of Energy. This monitoring is conducted to document compliance with s...

430

OFF-SITE ENVIRONMENTAL MONITORING REPORT: RADIATION MONITORING AROUND UNITED STATES NUCLEAR TEST AREAS, CALENDAR YEAR 1984  

EPA Science Inventory

This report covers the routine radiation monitoring activities conducted by the Environmental Monitoring Systems Laboratory-Las Vegas in areas which may be affected by nuclear testing programs of the Department of Energy. This monitoring is conducted to document compliance with s...

431

Perceived risk, stigma, and potential economic impacts of a high-level nuclear waste repository in Nevada  

Microsoft Academic Search

This study investigates the potential impacts of the proposed nuclear waste repository at Yucca Mountain, Nevada, upon tourism, retirement and job-related migration, and business development in Las Vegas and the state. Adverse impacts may be expected to result from perceptions of risk, stigmatization, and socially amplified reactions to `unfortunate events` associated with the repository (major and minor accidents, discoveries of

Paul Slovic; Mark Layman; Nancy Kraus; James Flynn; James Chalmers; Gail Gesell

1991-01-01

432

Nuclear Neighborhoods and Gene Expression  

PubMed Central

Summary The eukaryotic nucleus is a highly compartmentalized and dynamic environment. Chromosome territories are arranged non-randomly within the nucleus and numerous studies have indicated that a gene’s position in the nucleus can impact its transcriptional activity. Here, we focus on recent advances in our understanding of the influence of specific nuclear neighborhoods on gene expression or repression. Nuclear neighborhoods associated with transcriptional repression include the inner nuclear membrane/nuclear lamina and peri-nucleolar chromatin, whereas neighborhoods surrounding the nuclear pore complex, PML nuclear bodies, and nuclear speckles seem to be transcriptionally permissive. While nuclear position appears to play an important role in gene expression, it is likely to be only one piece of a flexible puzzle that incorporates numerous parameters. We are still at a very early, yet exciting stage in our journey toward deciphering the mechanism(s) that govern the permissiveness of gene expression/repression within different nuclear neighborhoods. PMID:19339170

Zhao, Rui; Bodnar, Megan S.; Spector, David L.

2009-01-01

433

Pediatric nuclear medicine  

SciTech Connect

This symposium presented the latest techniques and approaches to the proper medical application of radionuclides in pediatrics. An expert faculty, comprised of specialists in the field of pediatric nuclear medicine, discussed the major indications as well as the advantages and potential hazards of nuclear medicine procedures compared to other diagnostic modalities. In recent years, newer radiopharmaceuticals labeled with technetium-99m and other short-lived radionuclides with relatively favorable radiation characteristics have permitted a variety of diagnostic studies that are very useful clinically and carry a substantially lower radiation burden then many comparable X-ray studies. This new battery of nuclear medicine procedures is now widely available for diagnosis and management of pediatric patients. Many recent research studies in children have yielded data concerning the effacacy of these procedures, and current recommendations will be presented by those involved in conducting such studies. Individual papers are processed separately for the Energy Data Base.

Not Available

1986-01-01

434

Nuclear fuel element  

DOEpatents

A nuclear fuel element for use in the core of a nuclear reactor is disclosed and has a composite cladding having a substrate and a metal barrier metallurgically bonded on the inside surface of the substrate so that the metal barrier forms a shield between the substrate and the nuclear fuel material held within the cladding. The metal barrier forms about 1 to about 30 percent of the thickness of the cladding and is comprised of a low neutron absorption metal of substantially pure zirconium. The metal barrier serves as a preferential reaction site for gaseous impurities and fission products and protects the substrate from contact and reaction with such impurities and fission products. The substrate of the composite cladding is selected from conventional cladding materials and preferably is a zirconium alloy. Methods of manufacturing the composite cladding are also disclosed.

Armijo, Joseph S. (Saratoga, CA); Coffin, Jr., Louis F. (Schenectady, NY)

1983-01-01

435

Nuclear fuel element  

DOEpatents

A nuclear fuel element for use in the core of a nuclear reactor is disclosed and has an improved composite cladding comprised of a moderate purity metal barrier of zirconium metallurgically bonded on the inside surface of a zirconium alloy tube. The metal barrier forms a shield between the alloy tube and a core of nuclear fuel material enclosed in the composite cladding. There is a gap between the cladding and the core. The metal barrier forms about 1 to about 30 percent of the thickness of the composite cladding and has low neutron absorption characteristics. The metal barrier serves as a preferential reaction site for gaseous impurities and fission products and protects the alloy tube from contact and reaction with such impurities and fission products. Methods of manufacturing the composite cladding are also disclosed.

Armijo, Joseph S. (Saratoga, CA); Coffin, Jr., Louis F. (Schenectady, NY)

1980-04-29

436

Swedish nuclear waste efforts  

SciTech Connect

After the introduction of a law prohibiting the start-up of any new nuclear power plant until the utility had shown that the waste produced by the plant could be taken care of in an absolutely safe way, the Swedish nuclear utilities in December 1976 embarked on the Nuclear Fuel Safety Project, which in November 1977 presented a first report, Handling of Spent Nuclear Fuel and Final Storage of Vitrified Waste (KBS-I), and in November 1978 a second report, Handling and Final Storage of Unreprocessed Spent Nuclear Fuel (KBS II). These summary reports were supported by 120 technical reports prepared by 450 experts. The project engaged 70 private and governmental institutions at a total cost of US $15 million. The KBS-I and KBS-II reports are summarized in this document, as are also continued waste research efforts carried out by KBS, SKBF, PRAV, ASEA and other Swedish organizations. The KBS reports describe all steps (except reprocessing) in handling chain from removal from a reactor of spent fuel elements until their radioactive waste products are finally disposed of, in canisters, in an underground granite depository. The KBS concept relies on engineered multibarrier systems in combination with final storage in thoroughly investigated stable geologic formations. This report also briefly describes other activities carried out by the nuclear industry, namely, the construction of a central storage facility for spent fuel elements (to be in operation by 1985), a repository for reactor waste (to be in operation by 1988), and an intermediate storage facility for vitrified high-level waste (to be in operation by 1990). The R and D activities are updated to September 1981.

Rydberg, J.

1981-09-01

437

Relativistic nuclear collisions: theory  

SciTech Connect

Some of the recent theoretical developments in relativistic (0.5 to 2.0-GeV/nucleon) nuclear collisions are reviewed. The statistical model, hydrodynamic model, classical equation of motion calculations, billiard ball dynamics, and intranuclear cascade models are discussed in detail. Inclusive proton and pion spectra are analyzed for a variety of reactions. Particular attention is focused on how the complex interplay of the basic reaction mechanism hinders attempts to deduce the nuclear matter equation of state from data. 102 references, 19 figures.

Gyulassy, M.

1980-07-01

438

Nuclear medicine imaging system  

DOEpatents

It is an object of this invention to provide a nuclear imaging system having the versatility to do positron annihilation studies, rotating single or opposed camera gamma emission studies, and orthogonal gamma emission studies. It is a further object of this invention to provide an imaging system having the capability for orthogonal dual multipinhole tomography. It is another object of this invention to provide a nuclear imaging system in which all available energy data, as well as patient physiological data, are acquired simultaneously in list mode.

Bennett, G.W.; Brill, A.B.; Bizais, Y.J.C.; Rowe, R.W.; Zubal, I.G.

1983-03-11

439

Clustering in nuclear environment  

E-print Network

The properties of few-body clusters (mass number $A \\le 4$) are modified if they are immersed in a nuclear medium. In particular, Pauli blocking that reflects the antisymmetrization of the many-body wave function is responsible for the medium modification of light clusters and the dissolution with increasing density. A more consistent description is given with takes also the contribution of correlations in the continuum into account. The relation between cluster formation in warm dense matter and in nuclear structure is discussed.

G. Röpke

2014-08-12

440

Nuclear Systems Design Project  

NSDL National Science Digital Library

It might be inadvisable to build your own nuclear power plant, but for those looking to learn the basics, this OpenCourseWare course from MIT can help. This course was originally taught in the fall of 2011 by Dr. Michael Short. On the page, visitors can look over the syllabus, the course calendar, the readings, and the lecture videos and class notes. This last area is quite useful, as it contains videos and slides from talks on hydrogen and biofuel production, process heat, and the entire nuclear system design process. Additionally, the site contains links to some of the assignments for the course and information about team projects.

2011-01-01

441

Managing nuclear operations  

SciTech Connect

This book seeks to remedy the neglect of nuclear operations as a major flaw in the prevailing understanding of security. It aims to make the operational terrain at least more familiar if not much firmer. It describes the instruments involved in nuclear operations - the sensors, communications links, and command centers that form the physical network as well as the plans, procedures, organizations, and widely shared assumptions that allow the parts to work together coherently. The book as a whole seeks more to pose fundamental issues of operations management than to give definitive answers. It promotes no particular policy and makes no recommendations.

Carter, A.B.; Steinbruner, J.D.; Zraket, C.A.

1987-01-01

442

Clustering in nuclear environment  

NASA Astrophysics Data System (ADS)

The properties of few-body clusters (mass number A <= 4) are modified if they are immersed in a nuclear medium. In particular, Pauli blocking that reflects the antisymmetrization of the many-body wave function is responsible for the medium modification of light clusters and the dissolution with increasing density. A more consistent description is given with takes also the contribution of correlations in the continuum into account. The relation between cluster formation in warm dense matter and in nuclear structure is discussed.

Röpke, G.

2014-12-01

443

Nuclear Masses in Astrophysics  

E-print Network

Among all nuclear ground-state properties, atomic masses are highly specific for each particular combination of N and Z and the data obtained apply to a variety of physics topics. One of the most crucial questions to be addressed in mass spectrometry of unstable radionuclides is the one of understanding the processes of element formation in the Universe. To this end, accurate atomic mass values of a large number of exotic nuclei participating in nucleosynthesis are among the key input data in large-scale reaction network calculations. In this paper, a review on the latest achievements in mass spectrometry for nuclear astrophysics is given.

Christine Weber; Klaus Blaum; Hendrik Schatz

2008-12-09

444

STRUCTURAL BIOLOGY: Nuclear Trafficking  

NSDL National Science Digital Library

Access to the article is free, however registration and sign-in are required. The transcription factor SREBP-2 is a crucial component in cholesterol metabolism, switching on genes that regulate the synthesis and uptake of cholesterol. To activate these genes, SREBP-2 must be transported from the cytoplasm into the nucleus. In his Perspective, Stewart discusses an analysis of the crystal structure of SREBP-2 bound to its nuclear transport protein, importin-beta, which sheds new light on SREBP-2 nuclear transport (Lee et al.).

Murray Stewart (MRC Laboratory of Molecular Biology; )

2003-11-28

445

Focused technology: Nuclear propulsion  

NASA Technical Reports Server (NTRS)

The topics presented are covered in viewgraph form and include: nuclear thermal propulsion (NTP), which challenges (1) high temperature fuel and materials, (2) hot hydrogen environment, (3) test facilities, (4) safety, (5) environmental impact compliance, and (6) concept development, and nuclear electric propulsion (NEP), which challenges (1) long operational lifetime, (2) high temperature reactors, turbines, and radiators, (3) high fuel burn-up reactor fuels, and designs, (4) efficient, high temperature power conditioning, (5) high efficiency, and long life thrusters, (6) safety, (7) environmental impact compliance, and (8) concept development.

Miller, Thomas J.

1991-01-01

446

Nuclear waste's last stand  

SciTech Connect

It's hard to imagine a more unwelcome neighbor than nuclear waste. But something has to be done with the spent fuel now piling up at nuclear plants in the United States. While a handful of Indian tribes and other communities have shown interest in hosting a temporary storage site, the outcry from their neighbors and politicians may squash their plans. Now, a decade after the federal government began the search for a permanent repository, it still can't find even a temporary destination. Here's look at the problem and its consequences.

Not Available

1992-12-01

447

Financing the Nuclear Renaissance  

E-print Network

and expansion. In the west, the growth of nuclear energy largely stalled in the late 1980s. In this paper we shall consider the financing of a possible return to the building of new nuclear power plants (NPPs) in Western European and the US. Several... cases be set by the price of gas, which is linked to oil ii. Risk of a low carbon price iii. Poor plant reliability in operational phase (low load factor) The upshot of these is that private investors will expect relatively high rates of return ex...

Nuttall, William J; Taylor, S

448

(Cardiology and nuclear medicine)  

SciTech Connect

The traveler was invited to serve as an external examiner for a doctoral thesis entitled Analysis of Myocardial Time-Activity Curves Related to Radiolabeled Free Fatty Acid Metabolism'' in the Cardiology Department at the Free University of Amsterdam, The Netherlands. The traveler also visited the Institute for Clinical and Experimental Nuclear Medicine in Bonn, West Germany, the Department of Nuclear Medicine in Aachen, West Germany, and the Cyclotron Research Center in Liege, Belgium. He led discussions, reviewed data, and coordinated further collaboration on the preclinical studies and clinical testing of radiopharmaceuticals being developed by the traveler's research group at the Oak Ridge National Laboratory (ORNL).

Knapp, F.F. Jr.

1988-10-27

449

Nuclear Physics Group  

NSDL National Science Digital Library

This website features the Nuclear Physics Group at the University of Birmingham's research related to understanding nuclei properties by studying the behavior of their constituents. Visitors can learn about the investigations undertaken by the five subgroups: Relativistic Heavy Ion Collisions, Exotic beams studies, Laser Spectroscopy of Unstable Isotopes, Positron Emission Tomography, and Nuclear Power Energy. Students and educators can discover how under high temperature and density a quark is expected to convert into a plasma phase. The website also features links to the Positron Imaging Center where visitors can learn all about the positron cameras and the physics of Positron Emission Particle Tracking. [RME

450

Neutrinos in Nuclear Physics  

E-print Network

Since the discovery of nuclear beta decay, nuclear physicists have studied the weak interaction and the nature of neutrinos. Many recent and current experiments have been focused on the elucidation of neutrino oscillations and neutrino mass. The quest for the absolute value of neutrino mass continues with higher precision studies of the tritium beta decay spectrum near the endpoint. Neutrino oscillations are studied through measurements of reactor neutrinos as a function of baseline and energy. And experiments searching for neutrinoless double beta decay seek to discover violation of lepton number and establish the Majorana nature of neutrino masses.

R. D. McKeown

2014-12-03

451

Nuclear Energy: Challenges and Directions  

NASA Astrophysics Data System (ADS)

There are many myths regarding nuclear energy. Nuclear energy provides many advantages but like all other power generation methods it has some drawbacks. There have been some serious accidents involving nuclear power generation with the most recent occurring at Fukushima Daiichi. What role will nuclear energy play in the future? What are the challenges of the nuclear landscape as we move forward? Are there changes in policy or technology that should be considered? A vision of nuclear energy will be provided in an attempt to address these upcoming opportunities and challenges.

Pierson, Mark

2011-10-01

452

ROSAT Public PSPC Observations in the Las Campanas Redshift Survey  

E-print Network

The Las Campanas Redshift Survey, an optically selected survey which contains 26,418 galaxy redshifts, has been correlated with ``The First ROSAT Source Catalogue of Pointed Observations with the PSPC,'' which contains 50,408 sources from 2876 ROSAT pointed observations. Ten matches were found. The optical spectra of most of the ten matches show weak narrow emission lines. Due to their high x-ray luminosities, their high x-ray--to--optical flux ratios, and the evidence of rapid x-ray variability in the two brightest matches, we interpret the majority of these objects to be narrow-line Seyfert galaxies or ``hidden'' active galactic nuclei. Of the ten matches, only one galaxy shows the characteristics of a bona fide starburst.

D. L. Tucker; G. Hasinger; H. Lin

1997-04-22

453

Algoritmos Basados en Nubes de Particulas y Evolucion Diferencial para el Problema de  

E-print Network

Algoritmos Basados en Nubes de Part´iculas y Evoluci´on Diferencial para el Problema de Optimizaci con variables reales pode- mos destacar a los algoritmos basados en nubes de part´iculas y evoluci propuestas en la literatura. Este estu- dio permite analizar las distintas t´ecnicas en funci´on de sus

Granada, Universidad de

454

Nuclear, chemical, and physical characterization of nuclear materials  

Microsoft Academic Search

The goal of nuclear forensics is to establish an unambiguous link between illicitly trafficked nuclear material and its origin.\\u000a The Los Alamos National Laboratory (LANL) Nuclear Materials Signatures Program has implemented a graded “conduct of operations”\\u000a type analysis flow path approach for determining the key nuclear, chemical, and physical signatures needed to identify the\\u000a manufacturing process, intended use, and origin

L. Tandon; E. Hastings; J. Banar; J. Barnes; D. Beddingfield; D. Decker; J. Dyke; D. Farr; J. FitzPatrick; D. Gallimore; S. Garner; R. Gritzo; T. Hahn; G. Havrilla; B. Johnson; K. Kuhn; S. LaMont; D. Langner; C. Lewis; V. Majidi; P. Martinez; R. McCabe; S. Mecklenburg; D. Mercer; S. Meyers; V. Montoya; B. Patterson; R. A. Pereyra; D. Porterfield; J. Poths; D. Rademacher; C. Ruggiero; D. Schwartz; M. Scott; K. Spencer; R. Steiner; R. Villarreal; H. Volz; L. Walker; A. Wong; C. Worley

2008-01-01

455

Nuclear effects in Neutrino Nuclear Cross-sections  

SciTech Connect

Nuclear effects in the quasielastic and inelastic scattering of neutrinos(antineutrinos) from nuclear targets have been studied. The calculations are done in the local density approximation which take into account the effect of nucleon motion as well as renormalisation of weak transition strengths in the nuclear medium. The inelastic reaction leading to production of pions is calculated in a {delta} dominance model taking into account the renormalization of {delta} properties in the nuclear medium.

Singh, S. K.; Athar, M. Sajjad [Department of Physics, Aligarh Muslim University, Aligarh-202 002 (India)

2008-02-21

456

Weak nuclear forces cause the strong nuclear force  

E-print Network

We determine the strength of the weak nuclear force which holds the lattices of the elementary particles together. We also determine the strength of the strong nuclear force which emanates from the sides of the nuclear lattices. The strong force is the sum of the unsaturated weak forces at the surface of the nuclear lattices. The strong force is then about ten to the power of 6 times stronger than the weak force between two lattice points.

E. L. Koschmieder

2007-12-11

457

Nuclear effects in Neutrino Nuclear Cross-sections  

E-print Network

Nuclear effects in the quasielastic and inelastic scattering of neutrinos(antineutrinos) from nuclear targets have been studied. The calculations are done in the local density approximation which take into account the effect of nucleon motion as well as renormalisation of weak transition strengths in the nuclear medium. The inelastic reaction leading to production of pions is calculated in a $\\Delta$ dominance model taking into account the renormalization of $\\Delta$ properties in the nuclear medium.

S. K. Singh; M. Sajjad Athar

2007-10-24

458

Safety culture in the nuclear versus non-nuclear organization  

SciTech Connect

The importance of safety culture in the safe and reliable operation of nuclear organizations is not a new concept. The greatest barriers to this area of research are twofold: (1) the definition and criteria of safety culture for a nuclear organization and (2) the measurement of those attributes in an objective and systematic fashion. This paper will discuss a proposed resolution of those barriers as demonstrated by the collection of data across nuclear and non-nuclear facilities over a two year period.

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

1996-10-01

459

Nuclear Orbiting At Low Energy Nuclear Collisions  

NASA Astrophysics Data System (ADS)

The emissions of projectile-like fragments from light and medium heavy ion reactions have been discussed. In the case of certain nuclear reactions, such as, 24Mg+ 16O, 28Si+ 12C etc. among light heavy ion systems and 16O+ 89Y, 16O+ 93Nb etc. among medium heavy ion systems, both a 1/sin? angular distribution for projectile-like fragments and strong entrance channel dependence favoring breakup into the entrance channel with large excitation energy have been observed. We think these observations imply the formation of a long-lived orbiting dinuclear complex where the nuclei maintain their identities and nucleon exchange between them is highly suppressed. The analysis of fragment spectra show that the projectile-like fragments coming from such an orbiting dinuclear complex give significantly lower temperature compared to that of the respective compound nucleus.

Ray, Amlan

2007-05-01

460

Weak Nuclear Forces cause the Strong Nuclear Force  

SciTech Connect

We determine the strength of the weak nuclear force which holds the lattices of the elementary particles together. We also determine the strength of the strong nuclear force which emanates from the sides of the nuclear lattices. The strong force is the sum of the unsaturated weak forces at the surface of the lattices.

Koschmieder, E. L. [Center for Statistical Mechanics, University of Texas at Austin, Austin TX 78712 (United States)

2008-05-29

461

Nuclear district-heating and nuclear long-distance energy  

Microsoft Academic Search

A survey is given about the possibilities of nuclear energy for heating of residential and industrial buildings. The costs and quantities are only a rough estimate. The results show that nuclear energy will have economical advantages in comparison with conventional systems for district-heating. Nuclear District-Heating is a contribution to relieve the environment of pollution, by using waste heat of electricity

T. Bohn; G. Dietrich; K. Kugeler; M. Kugeler; H. F. Niessen; H. V. Schlenker

1974-01-01

462

United Campuses to Prevent Nuclear War: Nuclear War Course Summaries.  

ERIC Educational Resources Information Center

Briefly describes 46 courses on nuclear war available from United Campuses to Prevent Nuclear War (UCAM). These courses are currently being or have been taught at colleges/universities, addressing effects of nuclear war, arms race history, new weapons, and past arms control efforts. Syllabi (with assignments/reading lists) are available from UCAM.…

Journal of College Science Teaching, 1983

1983-01-01

463

Nuclear Reactors and Technology  

SciTech Connect

This publication Nuclear Reactors and Technology (NRT) announces on a monthly basis the current worldwide information available from the open literature on nuclear reactors and technology, including all aspects of power reactors, components and accessories, fuel elements, control systems, and materials. This publication contains the abstracts of DOE reports, journal articles, conference papers, patents, theses, and monographs added to the Energy Science and Technology Database during the past month. Also included are US information obtained through acquisition programs or interagency agreements and international information obtained through the International Energy Agency`s Energy Technology Data Exchange or government-to-government agreements. The digests in NRT and other citations to information on nuclear reactors back to 1948 are available for online searching and retrieval on the Energy Science and Technology Database and Nuclear Science Abstracts (NSA) database. Current information, added daily to the Energy Science and Technology Database, is available to DOE and its contractors through the DOE Integrated Technical Information System. Customized profiles can be developed to provide current information to meet each user`s needs.

Cason, D.L.; Hicks, S.C. [eds.

1992-01-01

464

Nuclear Power in Space.  

ERIC Educational Resources Information Center

Research has shown that nuclear radioisotope power generators can supply compact, reliable, and efficient sources of energy for a broad range of space missions. These missions range from televising views of planetary surfaces to communicating scientific data to Earth. This publication presents many applications of the advancing technology and…

Department of Energy, Washington, DC. Nuclear Energy Office.

465

Nuclear reactors. [LMFBR  

Microsoft Academic Search

Disclosed is a nuclear reactor cooled by a freezable liquid has a vessel for containing said liquid and comprising a structure shaped as a container, and cooling means in the region of the surface of said structure for effecting freezing of said liquid coolant at and for a finite distance from said surface for providing a layer of frozen coolant

1977-01-01

466

High temperature nuclear reactors  

Microsoft Academic Search

The difficulties which arise, in conducting heat away from the thermal ; shield, which lies between a nuclear reactor core and the concrete pressure ; vessel which contains it, are acute, especially in respect of the underside of ; the core, and in cases where the direction of coolant flow is ventically ; downwards. According to the present invention this

G. E. Lockett; S. B. Hosegood

1973-01-01

467

Nuclear spin circular dichroism  

SciTech Connect

Recent years have witnessed a growing interest in magneto-optic spectroscopy techniques that use nuclear magnetization as the source of the magnetic field. Here we present a formulation of magnetic circular dichroism (CD) due to magnetically polarized nuclei, nuclear spin-induced CD (NSCD), in molecules. The NSCD ellipticity and nuclear spin-induced optical rotation (NSOR) angle correspond to the real and imaginary parts, respectively, of (complex) quadratic response functions involving the dynamic second-order interaction of the electron system with the linearly polarized light beam, as well as the static magnetic hyperfine interaction. Using the complex polarization propagator framework, NSCD and NSOR signals are obtained at frequencies in the vicinity of optical excitations. Hartree-Fock and density-functional theory calculations on relatively small model systems, ethene, benzene, and 1,4-benzoquinone, demonstrate the feasibility of the method for obtaining relatively strong nuclear spin-induced ellipticity and optical rotation signals. Comparison of the proton and carbon-13 signals of ethanol reveals that these resonant phenomena facilitate chemical resolution between non-equivalent nuclei in magneto-optic spectra.

Vaara, Juha, E-mail: juha.vaara@iki.fi [NMR Research Group, Department of Physics, University of Oulu, P.O. Box 3000, FIN-90014 Oulu (Finland)] [NMR Research Group, Department of Physics, University of Oulu, P.O. Box 3000, FIN-90014 Oulu (Finland); Rizzo, Antonio [Istituto per i Processi Chimico-Fisici del Consiglio Nazionale delle Ricerche (IPCF-CNR), Area della Ricerca, via G. Moruzzi 1, I-56124 Pisa (Italy)] [Istituto per i Processi Chimico-Fisici del Consiglio Nazionale delle Ricerche (IPCF-CNR), Area della Ricerca, via G. Moruzzi 1, I-56124 Pisa (Italy); Kauczor, Joanna; Norman, Patrick [Department of Physics, Chemistry and Biology, Linköping University, S-58183 Linköping (Sweden)] [Department of Physics, Chemistry and Biology, Linköping University, S-58183 Linköping (Sweden); Coriani, Sonia, E-mail: coriani@units.it [Dipartimento di Scienze Chimiche e Farmaceutiche, Università degli Studi di Trieste, Via L. Giorgieri 1, I-34127 Trieste (Italy)] [Dipartimento di Scienze Chimiche e Farmaceutiche, Università degli Studi di Trieste, Via L. Giorgieri 1, I-34127 Trieste (Italy)

2014-04-07

468

Nuclear light bulb  

NASA Technical Reports Server (NTRS)

The nuclear light bulb engine is a closed cycle concept. The nuclear light bulb concept provides containment by keeping the nuclear fuel fluid mechanically suspended in a cylindrical geometry. Thermal heat passes through an internally cooled, fused-silica, transparent wall and heats hydrogen propellant. The seeded hydrogen propellant absorbs radiant energy and is expanded through a nozzle. Internal moderation was used in the configuration which resulted in a reduced critical density requirement. This result was supported by criticality experiments. A reference engine was designed that had seven cells and was sized to fit in what was then predicted to be the shuttle bay mass and volume limitations. There were studies done of nozzle throat cooling schemes to remove the radiant heat. Elements of the nuclear light bulb program included closed loop critical assembly tests done at Los Alamos with UF6 confined by argon buffer gas. It was shown that the fuel region could be seeded with constituents that would block UV radiation from the uranium plasma. A combination of calculations and experiments showed that internal moderation produced a critical mass reduction. Other aspects of the research are presented.

Latham, Tom

1991-01-01

469

NUCLEAR POWERED EMIGRANT SHIP  

Microsoft Academic Search

A nuclear-powered emigrant ship has been designed and would operate ; between Japan and the East Coast of South America, a distance of 12,000 miles. ; The ship would be 20,000 tons gross with a cruising speed of 23 knots. The main ; propulsion machinery would consist of two sets of 22,000 SRP steam turbines using ; saturated steam. A

S. Takeuchi; T. Okamura; S. Murakami

1959-01-01

470

Children's (Pediatric) Nuclear Medicine  

MedlinePLUS

... pictures and provides molecular information. In many centers, nuclear medicine images can be superimposed with computed tomography (CT) or magnetic resonance imaging (MRI) to produce special views, a practice known as image fusion or co-registration. These views allow the information ...

471

Controlled Nuclear Fusion.  

ERIC Educational Resources Information Center

This publication is one of a series of information booklets for the general public published by The United States Atomic Energy Commission. Among the topics discussed are: Importance of Fusion Energy; Conditions for Nuclear Fusion; Thermonuclear Reactions in Plasmas; Plasma Confinement by Magnetic Fields; Experiments With Plasmas; High-Temperature…

Glasstone, Samuel

472

General Nuclear Medicine  

MedlinePLUS

... pictures and provides molecular information. In many centers, nuclear medicine images can be superimposed with computed tomography (CT) or magnetic resonance imaging (MRI) to produce special views, a practice known as image fusion or co-registration. These views allow the information ...

473

Producing Nuclear Power  

ERIC Educational Resources Information Center

There is a potential crisis looming related to the world's need for energy. On the one hand, energy demands are growing every day, and could double by 2050. On the other hand, burning of traditional fossil fuels to generate electricity is contributing to the increase in greenhouse gases. Would it be advisable to increase the number of nuclear…

Childress, Vincent W.

2010-01-01

474

Nuclear Magnetic Resonance Gyroscope  

NASA Astrophysics Data System (ADS)

The navigation grade micro Nuclear Magnetic Resonance Gyroscope (micro-NMRG) being developed by the Northrop Grumman Corporation is concluding the fourth and final phase of the DARPA Navigation Grade Integrated Micro Gyro (NGIMG) program. Traditional MEMS gyros utilize springs as an inherent part of the sensing mechanism, leading to bias and scale factor sensitivity to acceleration and vibration. As a result, they have not met performance expectations in real world environments and to date have been limited to tactical grade applications. The Nuclear Magnetic Resonance Gyroscope (NMRG) utilizes the fixed precession rate of a nuclear spin in a constant magnetic field as an inertial reference for determining rotation. The nuclear spin precession rate sensitivity to acceleration and vibration is negligible for most applications. Therefore, the application of new micro and batch fabrication methods to NMRG technology holds great promise for navigation grade performance in a low cost and compact gyro. This poster will describe the history, operational principles, and design basics of the NMRG including an overview of the NSD designs developed and demonstrated in the DARPA gyro development program. General performance results from phases 3 and 4 will also be presented.

Bulatowicz, Michael; Clark, Philip; Griffith, Robert; Larsen, Michael; Mirijanian, James

2012-06-01

475

Nuclear receptor coactivators  

Microsoft Academic Search

Retinoic acid, steroid and thyroid hormones regulate complex programs of gene expression by binding to intracellular receptors that are members of the nuclear receptor superfamily of ligand-dependent transcription factors. Recent studies have led to the identification and cloning of genes encoding coactivator molecules that appear to play important roles in mediating ligand-dependent transcription by members of this family. The identification

Christopher K Glass; David W Rose; Michael G Rosenfeld

1997-01-01

476

Nuclear testing: Executive summary  

SciTech Connect

The authors have examined the experimental and analytic bases for understanding the performance of each of the weapon types that are currently planned to remain in the US enduring nuclear stockpile. They have also examined whether continued underground tests at various nuclear yield thresholds would add significantly to the confidence in this stockpile in the years ahead. The starting point for this examination was a detailed review of past experience in developing and testing modern nuclear weapons, their certification and recertification processes, their performance margins, and evidence of aging or other trends over time for each weapon type in the enduring stockpile. The findings, as summarized in Conclusions 1 through 6, are consistent with US agreement to enter into a Comprehensive Test Ban Treaty (CTBT) of unending duration, that includes a standard ``supreme national interest`` clause. Recognizing that the challenge of maintaining an effective nuclear stockpile for an indefinite period without benefit of underground tests is an important and also a new one, the US should affirm its readiness to invoke the supreme national interest clause should the need arise as a result of unanticipated technical problems in the enduring stockpile.

Drell, S.; Cornwall, J.; Dyson, F. [and others

1995-08-01

477

Nuclear fuel reprocessing  

Microsoft Academic Search

Reprocessing of spent nuclear fuel is a relatively simple, well-developed, and successful technology. Large, expensive reprocessing facilities are in use, principally in the UK and France, and are under construction in Japan and the CIS. As in most industrial processes, the viability of the process depends on the usefulness of its function and products, operational costs, and the economics of

Foreman

1992-01-01

478

Nuclear Lipid Signaling  

NSDL National Science Digital Library

The eukaryotic nucleus is surrounded by a double membrane that can be regarded as a part of the endoplasmic reticulum, albeit a specialized part, so it is no particular surprise that lipids are present in nuclei, and that these can change under some conditions. However, what is surprising to many people is that if the nuclear membrane is removed by detergents, there is still a considerable amount of lipid left, and a large number of lipid-synthesizing and metabolizing enzymes. These enzymes are undoubtedly intranuclear, and cannot be discounted as arising from contamination with other cellular fractions. The best characterized of these enzymes are the components of a nuclear polyphosphoinositide cycle that generates phosphatidylinositol-4,5-bisphosphate [PIP2 or PtdIns(4,5)P2]. This PIP2 can in turn be hydrolyzed to diacylglycerol by a phospholipase C (PI-PLC) that is regulated separately from the "classic" plasma membrane PI-PLC. This nuclear diacylglycerol can recruit protein kinase C to the nucleus to phosphorylate substrates (mostly) as yet unidentified. However, that cycle is only the tip of the iceberg, and more and more lipid signaling pathways and players are being implicated as existing within the nucleus. This is a large and confusing literature. This review focuses on the main issues critically assesses the best evidence for what is and is not truly nuclear lipid signaling, and for what such signaling may or may not do.

Robin Irvine (University of Cambridge; Department of Pharmacology REV)

2000-09-05

479

Nuclear Lipid Signaling  

NSDL National Science Digital Library

The eukaryotic nucleus is surrounded by a double membrane that can be regarded as a specialized part of the endoplasmic reticulum, so it is no surprise that lipids are present in nuclei, and that these can change under some conditions. However, what is surprising is that if the nuclear membrane is removed by detergents, there remains a considerable amount of lipid and lipid-synthesizing and metabolizing enzymes. These enzymes are undoubtedly intranuclear, and they cannot be discounted as arising from contamination with other cellular fractions. The best characterized of these enzymes are the components of a nuclear polyphosphoinositide cycle that generates phosphatidylinositol-4,5-bisphosphate [PtdIns(4,5)P2]. This PtdIns(4,5)P2 can in turn be hydrolyzed to diacylglycerol (DAG) by a phospholipase C (PI-PLC) that is regulated separately from the "classic" plasma membrane PI-PLC. This nuclear DAG can recruit protein kinase C from the cytoplasm to the nucleus to phosphorylate substrates, most of which are still unidentified. However, that cycle is only the tip of the iceberg, and more lipid signaling pathways and players are being implicated as existing within the nucleus. This is a large and confusing literature. This review focuses on the main issues and critically assesses the best evidence for what is and is not truly nuclear lipid signaling, and for what such signaling may or may not do.

Robin F. Irvine (University of Cambridge; Department of Pharmacology REV)

2002-09-17

480

JPRS report, nuclear developments  

SciTech Connect

This report contains articles concerning the nuclear developments of the following countries: (1) China; (2) Japan, North Korea, South Korea; (3) Czechoslovakia; (4) Argentina, Brazil; (5) India, Pakistan; (6) Soviet Union; (7) France, Germany, Canada, Italy, Sweden, Switzerland, United Kingdom; and (8) Ghana, Mauritius.

NONE

1991-02-05

481

Nuclear thermal propulsion  

NASA Technical Reports Server (NTRS)

This document is presented in viewgraph form, and the topics covered include the following: (1) the direct fission-thermal propulsion process; (2) mission applications of direct fission-thermal propulsion; (3) nuclear engines for rocket vehicles; (4) manned mars landers; and (5) particle bed reactor design.

Bennett, Gary L.

1991-01-01

482

Nuclear Power in Japan.  

ERIC Educational Resources Information Center

Energy consumption in Japan has grown at a faster rate than in any other major industrial country. To maintain continued prosperity, the government has embarked on a crash program for nuclear power. Current progress and issues/reactions to the plan are discussed. (JN)

Powell, John W.

1983-01-01

483

Nuclear Medical Technology Training.  

ERIC Educational Resources Information Center

This 1-day colloquium, attended by 23 participants representing societies, government agencies, colleges and universities, and other training programs, was conducted for the purpose of reporting on and discussing the curriculums developed at the University of Cincinnati for training nuclear medical technologists. Pilot programs at both the…

Simmons, Guy H., Ed.

484

The Nuclear Microprobe  

Microsoft Academic Search

Nuclear microprobes are used in many accelerator laboratories for a range of applications in microanalysis and modification of a wide variety of different materials. They are used to focus MeV ion beams to small spot sizes containing currents ranging from femtoamperes to nanoamperes. While microprobes routinely achieve spatial resolutions of a few micrometers, recent breakthroughs in lens design and accelerator

M. B. H. Breese

2009-01-01

485

Washington: Hanford Nuclear Reservation  

Atmospheric Science Data Center

... "before and after" views of the area around the Hanford Nuclear Reservation near Richland, Washington. On June 27, 2000, a fire in the ... since 1996. MISR was built and is managed by NASA's Jet Propulsion Laboratory, Pasadena, CA, for NASA's Science Mission Directorate, ...

2014-05-15

486

Evaluated nuclear data library  

SciTech Connect

The Lawrence Livermore National Laboratory (LLNL) collection of evaluated data for neutron-, photon-, and charged-particle-induced reactions is maintained in a computer-oriented system. In this report we recount the history of Evaluated Nuclear Data Library, describe the methods of evaluation, and give examples of input and output representation of the data.

Howerton, R.J.; Dye, R.E.; Perkins, S.T.

1981-10-08

487

Nuclear Safety Analysis Center  

Microsoft Academic Search

Immediately after the Three Mile Island (TMI) accident, the US utility industry asked the Electric Power Research Institute (EPRI) to set up a Nuclear Safety Analysis Center (NSAC) charged with analyzing the accident, deriving lessons to be learned from it, and performing other safety-related functions. Financed by industry subscriptions and staffed with a nucleus of EPRI employees, with loaned employees

E. L. Zebroski; M. C. Leverett

1981-01-01

488

Soviet nuclear weapons policy  

SciTech Connect

This book assesses both Western and Soviet literature on Soviet nuclear weapons policy. The author discusses the development of the various Western schools of interpretation and their effect on U.S. policy and provides an introduction to Soviet sources (Russian language as well as translated material). Analytical chapters are followed by comprehensive annotated listings of a broad range of civilian and military publications.

Green, W.C.

1987-01-01

489

Nuclear weapons effects seminar  

Microsoft Academic Search

The purpose of the seminar was to provide the following information to newly assigned MMEAS survivability engineers: a. An awareness of the magnitude and complexity of the varied nuclear threats. b. An overview of general and specific Air Force policies and procedures in these areas: 1. A.F. Tech Order system 2. Maintenance Data Collection system 3. Hardness Maintenance\\/Hardness Surveillance 4.

T. Hewlett; B. Haney

1987-01-01

490

Nuclear technology and ageing  

Microsoft Academic Search

Monitoring the condition and forecasting lifetimes of material within ageing nuclear power plant is a subject of great topicality. Among these materials are the cables of the reactor control systems necessary for safe operation, including controlled shutdown in the event of an emergency. The ability to ensure that such cabling is fit for its purpose is of major concern, but

H. M. Banford; R. A. Fouracre

1999-01-01

491

Nuclear weapons testing  

Microsoft Academic Search

The author examines the history of efforts to ban, or at least constrain, nuclear tests. The issue has been marked by shifts in attitude by the superpowers in recent times. The Reagan Administration sees a comprehensive test ban only as a very long-term goal for the U.S. The Soviets, on the other hand, have been pushing extremely hard lately for

Heylin

1988-01-01

492

Restructuring nuclear regulations.  

PubMed Central

Nuclear regulations are a subset of social regulations (laws to control activities that may negatively impact the environment, health, and safety) that concern control of ionizing radiation from radiation-producing equipment and from radioactive materials. The impressive safety record among nuclear technologies is due, in no small part, to the work of radiation safety professionals and to a protection system that has kept pace with the rapid technologic advancements in electric power generation, engineering, and medicine. The price of success, however, has led to a regulatory organization and philosophy characterized by complexity, confusion, public fear, and increasing economic costs. Over the past 20 years, regulatory costs in the nuclear sector have increased more than 250% in constant 1995 U.S. dollars. Costs of regulatory compliance can be reduced sharply, particularly when health and environmental benefits of risk reduction are questionable. Three key regulatory areas should be closely examined and modified to improve regulatory effectiveness and efficiency: a) radiation protection should be changed from a risk-based to dose-based system; b) the U.S. government should adopt the modern metric system (International System of Units), and radiation quantities and units should be simplified to facilitate international communication and public understanding; and c) a single, independent office is needed to coordinate nuclear regulations established by U.S. federal agencies and departments. PMID:12515683

Mossman, Kenneth L

2003-01-01

493

Nuclear waste solutions  

DOEpatents

High efficiency removal of technetium values from a nuclear waste stream is achieved by addition to the waste stream of a precipitant contributing tetraphenylphosphonium cation, such that a substantial portion of the technetium values are precipitated as an insoluble pertechnetate salt.

Walker, Darrel D. (1684 Partridge Dr., Aiken, SC 29801); Ebra, Martha A. (129 Hasty Rd., Aiken, SC 29801)

1987-01-01

494

Nuclear magnetic resonance imaging  

SciTech Connect

A method of imaging a body by nuclear magnetic resonance wherein volume scanning of a region of the body is achieved by scanning a first planar slice of the region and at least one further slice of the region in the relaxation time for the scan of the first slice.

Young, I.R.

1984-07-03

495

Preserving Nuclear Grade Knowledge  

SciTech Connect

When people think of the government they think of the President, or Congress, or the Internal Revenue Service (IRS), but there are thousands of people in government-related jobs doing things most don’t really notice everyday. You can find them everywhere, from the space science folks at NASA, to the Federal Bureau of Investigations (FBI) watching out for the bad guys. There are Rangers, and Social Workers, Nurses and Agricultural Managers. They are people working to keep the many facets of the USA rolling. One very diverse bunch is The Department of Energy (DOE) , a group who is expanding the ways we make and save energy to power our cars, homes, and businesses. Tucked away under the DOE is the National Nuclear Security Administration, the NNSA is an agency that maintains the safety, security, and reliability of the U.S. nuclear weapons stockpile. It works to reduce global danger from weapons of mass destruction. It provides the U.S. Navy with safe nuclear propulsion, and it responds to nuclear and radiological emergencies in the United States and abroad, and it supports efforts in science and technology*. (* DOE/NNSA/KCP website info)

Lange, Bob

2008-02-05

496

Nuclear Radiation Damages Minds!  

ERIC Educational Resources Information Center

Professors Ernest Sternglass (University of Pittsburgh) and Steven Bell (Berry College) have assembled cogent, conclusive evidence indicating that nuclear radiation is associated with impaired cognition. They suggest that Scholastic Aptitude Scores (SATs), which have declined steadily for 19 years, will begin to rise. Their prediction is based on…

Blai, Boris, Jr.

497

Viewpoints on Nuclear Education.  

ERIC Educational Resources Information Center

The Committee on the Present Danger, Inc., the Committee of Atomic Bomb Survivors in the United States, the World Friendship Center in Hiroshima, two authors, physics and education professors, an English and history teacher, and a high school student comment on nuclear education. (RM)

Social Education, 1983

1983-01-01

498

Nuclear medicine review syllabus  

SciTech Connect

A comprehensive review of the major scientific and clinical advances that have occurred in nuclear medicine since the early 1970s is given. The chapters include Radiopharmacology, Instrumentation, Radiation Effects and Radiation Protection, Cardiovascular, Central Nervous System, Endocrinology, Gastroenterology, Genito-Urinary System. Hematology-Oncology, Pulmonary, Radioassay, and the Skeletal System.

Kirchner, P.T. (ed.)

1980-01-01

499

Trends in nuclear power  

Microsoft Academic Search

During the late 1970's the future of the U.S. nuclear power industry became clouded by troubling developments. As of 1982, 72 operating reactors supply about 13% of the nation's electricity, but also in 1982, construction was halted or deferred on two reactors in Oklahoma, three in the state of Washington, and 10 in North Carolina, Mississippi, and Tennessee. Although overregulation

Hileman

1982-01-01

500

Nuclear Powerplant Safety: Operations.  

ERIC Educational Resources Information Center

Powerplant systems and procedures that ensure the day-to-day health and safety of people in and around the plant is referred to as operational safety. This safety is the result of careful planning, good engineering and design, strict licensing and regulation, and environmental monitoring. Procedures that assure operational safety at nuclear…

Department of Energy, Washington, DC. Nuclear Energy Office.