Sample records for acuifero alto piura

  1. Modeling the impact of solute recycling on groundwater salinization under irrigated lands: A study of the Alto Piura aquifer, Peru

    NASA Astrophysics Data System (ADS)

    Yakirevich, A.; Weisbrod, N.; Kuznetsov, M.; Rivera Villarreyes, C. A.; Benavent, I.; Chavez, A. M.; Ferrando, D.

    2013-03-01

    SummaryStudies of groundwater quality in arid and semi-arid lands show that irrigation return flow is one of major factors contributing to aquifer salinization. Existing mathematical models do not account explicitly for solute recycling during irrigation on a daily scale, which is considered as an important salinization input. The main objective of this research was to develop a mathematical numerical model that can simulate impact of irrigation return flow by coupling water and solute fluxes at the soil surface with quality of water pumped from the aquifer. This was obtained with a Quasi-3D model representing flow in the vadose zone - aquifer system by series of 1D Richards' equations in a variably-saturated zone and by a 3D flow equation in groundwater. The 3D advection-dispersion equation is solved in the entire domain. Concentration of irrigation water is calculated at each time step as a function of concentration of both surface water and groundwater extracted at specific locations. The model was applied to simulate the impact of irrigation on groundwater salinization of Alto Piura aquifer (Northern Peru) over thirty years. Three scenarios were considered: (i) use of flood irrigation and groundwater extraction (the present situation); (ii) increase of groundwater pumping by 50% compared to the first scenario; and (iii) transition from flood irrigation to drip irrigation, thus decreasing irrigation volume by around 60% compared to the first scenario. Results indicate that in different irrigation areas, the simulated increase rates of total dissolved solids in groundwater vary from 3-5 to 15-17 mg/L/year, depending on hydrogeological and hydrochemical conditions, volumes of water extracted, and proportion between surface water and groundwater applied. The transition from flood irrigation to drip irrigation decreases the negative impact of return flow on groundwater quality; however drip irrigation causes faster soil salinization compared to flood irrigation. Irrigation return coefficients were calculated in the order of 21-23% and 22-24% for the first and second scenarios, respectively.

  2. [Epidemic dermatits by Paederus irritans in Piura, Perú at 1999, related to El Niño phenomenon].

    PubMed

    Alva-Davalos, Victor; Laguna-Torres, Victor Alberto; Huaman, A; Olivos, R; Chavez, M; Garcia, C; Mendoza, N

    2002-01-01

    The phenomen El Niño that affected Peru at 1998, made possible the growth of copious vegetation in traditionally dry places. On this way, Paederus irritans, dipterous of the order Coleoptera that produces dermatitis when croushed on the skin, found substract that allowed the natural growth of its population. The coming of occasional rains on the months of February to April 1999, attacked the habitat of this insect, that looked for urban areas, exposing seriously the general population of Piura on north Perú to the contact. During February and May 1,451 cases of dermatitis caused by Paederus irritans, called latigazo because of its linear and eritematous characteristic lesions on the skin, were notified at Piura. The more affected body areas were head (56.6%) and neck (30.9%), but there were also cases of conjunctivitis and genital injuries, because of hands contamination. PMID:11873257

  3. Estimating Climate Impacts on Cholera in Piura, Peru during the 1997-98 El Niño

    NASA Astrophysics Data System (ADS)

    Ramirez, I. J.

    2012-12-01

    In this retrospective study, I examine the impacts of climate on cholera incidence in Piura, Peru during the strongest El Niño of the 20th century in 1998. Bivariate regression analyses were conducted to assess the impact of climate variables (a) Niño 3.4 sea surface temperature anomaly (SSTA), (b) Niño 1+2 SSTA, (c) Paita SSTA, (d) maximum temperature anomaly (TMAXA), (e) minimum temperature anomaly (TMINA), (f) mean temperature anomaly (TMEANA), and (g) total rainfall on cholera incidence at the district level. Temporal lag associations from zero to 7 months were also explored. The strongest associations were mapped in ArcGIS 9.2 to explore the spatial variation of the climate-cholera associations. The results showed that the strength of associations varied by climate variable, temporal lag and district. The climate variable with the strongest association was rainfall (1 and 2 month lags) and explains how cholera may have spread via flooding during the 1997-98 El Niño. Impacts were generally found in districts located on the west coast of Piura; however, associations were also observed in central Piura. This study illustrates the potential usefulness of temporal-spatial climate and health information for future epidemic preparedness and infectious disease prevention. It also demonstrates the challenges faced by public health scientists, particularly in developing countries, in the assessment of climate impacts on human health.

  4. ESTUDIO DE PREINVERSION PARA LA IMPLEMENTACIÓN DE UN LABORATORIO DE TERMODINAMICA Y TRANSFERENCIA DE CALOR PARA FACULTAD DE INGENIERÍA INDUSTRIAL DE LA UNIVERSIDAD NACIONAL DE PIURA

    Microsoft Academic Search

    José Julián Ipanaqué; Dubert Reyes Vásquez; Guido Ticona Olarte

    2010-01-01

    En el presente trabajo de investigación se identifica el principal problema que viene afectando a la formación profesional de los alumnos de la Facultades de Ingeniería de la Universidad Nacional de Piura (Ingeniería Industrial, Ingeniería Mecatrónica, Agroindustrial, Minas, Petróleo, Química y Pesquería) que consiste en la “Inadecuada preparación académica tecnológica de los alumnos de las Facultades de Ingeniería de la

  5. 3. photocopy of an advertisement (from Penn Alto Hotel archives, ...

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

    3. photocopy of an advertisement (from Penn Alto Hotel archives, Altoona, Pennsylvania) ADVERTISEMENT TO SELL STOCK IN PENN ALTO HOTEL - Penn Alto Hotel, 1120-1130 Thirteenth Avenue, Altoona, Blair County, PA

  6. 4. photocopy of an advertisement (from Penn Alto Hotel archives, ...

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

    4. photocopy of an advertisement (from Penn Alto Hotel archives, Altoona, Pennsylvania) ADVERTISEMENT TO SELL STOCK IN PENN ALTO HOTEL - Penn Alto Hotel, 1120-1130 Thirteenth Avenue, Altoona, Blair County, PA

  7. February 13, 2010 (PhotoAlto / Getty)

    E-print Network

    Contractor, Anis

    February 13, 2010 (PhotoAlto / Getty) Fragile X syndrome is thought to have a significant overlap of fragile X and autistic people are thought to significantly overlap." Fragile X syndrome is as common and behavioural problems. Fragile X syndrome is caused by a gene mutation in the X chromosome that interferes

  8. The ALTO project at IPN Orsay

    E-print Network

    F. Ibrahim

    2006-10-04

    In order to probe neutron rich radioactive noble gases produced by photo-fission, a PARRNe1 experiment (Production d'Atomes Radioactifs Riches en Neutrons) has been carried out at CERN. The incident electron beam of 50 MeV was delivered by the LIL machine: LEP Injector Linac. The experiment allowed to compare under the same conditions two production methods of radioactive noble gases: fission induced by fast neutrons and photo-fission. The obtained results show that the use of the electrons is a promising mode to get intense neutron rich ion beams. Thereafter, the success of this photo-fission experiment, a conceptual design for the installation at IPN Orsay of a 50 MeV electron accelerator close to the PARRNe-2 device has been worked out: ALTO Project. This work has started within a collaboration between IPNO, LAL and CERN groups.

  9. www.PaloAltoOnline.com 2010 Holiday

    E-print Network

    Rubin, Yoram

    ," to help determine a topic for the sec- ond gathering: "The Challenge of Nurturing (Emotional) Intelligence panhandling and promote responsibility by Kelly Jones Continuing the `Asian conversation' Panel on emotional intelligence set for Dec. 8 by Chris Kenrick W ith a growing Asian enroll- ment in Palo Alto schools, parent

  10. Actor-Oriented Control System Design Palo Alto Research Center

    E-print Network

    1 of 29 Actor-Oriented Control System Design Jie Liu Palo Alto Research Center 3333 Coyote Hill Rd}@eecs.berkeley.edu Abstract: Complex control systems are heterogeneous, in the sense of discrete computer-based con- trollers challenges for control system design technologies in terms of end-to-end control perfor- mance modeling

  11. Multimedia information retrieval at FX Palo Alto Laboratory

    NASA Astrophysics Data System (ADS)

    Cooper, Matthew L.; Adcock, John; Girgensohn, Andreas; Pickens, Jeremy; Wilcox, Lynn

    2011-02-01

    This paper describes research activities at FX Palo Alto Laboratory (FXPAL) in the area of multimedia browsing, search, and retrieval. We first consider interfaces for organization and management of personal photo collections. We then survey our work on interactive video search and retrieval. Throughout we discuss the evolution of both the research challenges in these areas and our proposed solutions.

  12. Gamma-Beta-Neutron Detectors Set-Up at ALTO

    SciTech Connect

    Testov, D.; Penionzhkevich, Yu.; Smirnov, V.; Sokol, E. [Flerov laboratory of Nuclear Reactions, Joint Institute for Nuclear Research, Dubna (Russian Federation); Ancelin, S.; Ibrahim, F.; Niikura, M.; Tastet, B.; Verney, D. [Institute de Physique Nucleaire d'Orsay (France)

    2010-04-30

    A multi detection system consisted of 90 {sup 3}He counters, gamma detector and beta detector has been installed at beamline of the accelerator complex ALTO. The system allows performing direct measurements of probability of delayed neutron emission from spontaneous fission fragments. A trial experiment was carried out to test the detection system created.

  13. * Corresponding author. Rehabilitation R and D Center (153), VA Palo Alto Health Care System, 3801 Miranda Avenue, Palo Alto, CA

    E-print Network

    * Corresponding author. Rehabilitation R and D Center (153), VA Palo Alto Health Care System, 3801 was to use a pedal force decomposition approach to quantify the amount of negative muscular crank torque muscular crank torque increases at high pedaling rates as a result of the activation dynamics associated

  14. The night-sky at the Calar Alto Observatory

    E-print Network

    S. F. Sanchez; J. Aceituno; U. Thiele; D. Perez-Ramirez; J. Alves

    2007-09-06

    We present a characterization of the main properties of the night-sky at the Calar Alto observatory for the time period between 2004 and 2007. We use optical spectrophotometric data, photometric calibrated images taken in moonless observing periods, together with the observing conditions regularly monitored at the observatory, such as atmospheric extinction and seeing. We derive, for the first time, the typical moonless night-sky optical spectrum for the observatory. The spectrum shows a strong contamination by different pollution lines, in particular from Mercury lines, which contribution to the sky-brightness in the different bands is of the order of ~0.09 mag, ~0.16 mag and ~0.10 mag in B, V and R respectively. The zenith-corrected values of the moonless night-sky surface brightness are 22.39, 22.86, 22.01, 21.36 and 19.25 mag arcsec^-2 in U, B, V, R and I, which indicates that Calar Alto is a particularly dark site for optical observations up to the I-band. The fraction of astronomical useful nights at the observatory is ~70%, with a ~30% of photometric nights. The typical extinction at the observatory is k_V~0.15 mag in the Winter season, with little dispersion. In summer the extinction has a wider range of values, although it does not reach the extreme peaks observed at other sites. The median seeing for the last two years (2005-6) was ~0.90", being smaller in the Summer (~0.87") than in the Winter (~0.96"). We conclude in general that after 26 years of operations Calar Alto is still a good astronomical site, being a natural candidate for future large aperture optical telescopes.

  15. The Arctic Lower Troposphere Observed Structure (ALTOS) Campaign

    SciTech Connect

    Verlinde, J

    2010-10-18

    The ALTOS campaign focuses on operating a tethered observing system for routine in situ sampling of low-level (< 2 km) Arctic clouds. It has been a long-term hope to fly tethered systems at Barrow, Alaska, but it is clear that the Federal Aviation Administration (FAA) will not permit in-cloud tether systems at Barrow, even if unmanned aerial vehicle (UAV) operations are allowed in the future. We have provided the scientific rationale for long-term, routine in situ measurements of cloud and aerosol properties in the Arctic. The existing restricted air space at Oliktok offers an opportunity to do so.

  16. Veterans Administration Palo Alto Health Care System An Affiliation of Stanford University School of Medicine

    E-print Network

    Quake, Stephen R.

    Veterans Administration Palo Alto Health Care System An Affiliation of Stanford University School of Medicine at the Veterans Administration Palo Alto Health Care System (VAPAHCS) and Stanford University for the administrative and clinical care and treatment of veterans within the VAPAHCS. Individuals with experience

  17. The Calar Alto Serendipitous Asteroid Discovery and Observation program --- CASADO

    NASA Astrophysics Data System (ADS)

    Hellmich, S.; Debschütz, L.; Hafemeister, L.; Gerull, O.; Proffe, G.; Mottola, S.; Hahn, G.

    2014-07-01

    In the past years much effort was put into programs for asteroid discovery. Large-scale programs like LINEAR[1] and Catalina Sky Survey were introduced and powerful telescopes like Pan-STARRS[3] were built only for the purpose of finding asteroids, to name just a few. Thus, the rate of asteroid discoveries literally exploded. Although by far the largest number of observations is done by the big surveys also smaller observation programs can provide valuable data. Telescopes, whether they hunt asteroids or do other tasks, image them all the time. By searching the images for serendipitously observed asteroids one can contribute to refine orbits of already known asteroids, find new objects and sometimes even determine basic physical properties which are unknown for most of the known asteroids. In October 2012 we started CASADO, a program for secondary usage of the data collected within a long term observation program carried out at the 1.23m telescope at Calar Alto. The telescope is equipped with a 4k by 4k CCD covering a field of view of about 22 by 22 arcmin. We use the telescope for 100 nights per year mainly for photometric observations of Jupiter Trojans[4] but also main-belt objects, satellites of Jupiter and comets are sometimes observed. In a typical observation campaign, we focus on about 15 to 20 minor bodies of which we repetitively observe 10 to 15 during a single night. To search the fields for serendipitously-observed objects we implemented a semi-automated software which performs the astrometric calibration, searches the images for moving objects, identifies already known asteroids and prepares MPC reports. By calculating preliminary orbital elements for the newly-discovered objects using OpenOrb[2] we are also able to compute ephemeris and reliably link the observations of these objects over multiple nights. Not only do we process the images of ongoing campaigns, but also went back in time to July 2011. While the astrometry of the objects which have been found is reported to the Minor Planet Center we also look for asteroids imaged over several nights to combine the observations to lightcurves. As of March 2014, CASADO, which also serves the purpose of educating and training young students and observers, has obtained 151 provisional designations assigned by the MPC. Among them 2013 SA_{87}, according to the MPC the only TNO discovered in 2013. Form the carefully-selected candidate objects for lightcurve analysis we were able to determine 9 reliable rotational periods.

  18. Hematology Section Chief at VA Palo Alto Tenure or Medical Center Line, Associate Professor or Professor

    E-print Network

    Quake, Stephen R.

    Hematology Section Chief at VA Palo Alto Tenure or Medical Center are recruiting an exceptional academic leader to serve as section chief for hematology for a dedicated faculty and clinical care for a wide variety of hematologic

  19. O estado de arte: a evoluo de computao de alto desempenho

    E-print Network

    Song, Siang Wun

    : a evolução de computação de alto desempenho #12;Máquinas no Brasil na TOP500 Na lista atual não há nenhuma máquina do Brasil. Na lista de novembro/2008 havia uma máquina do Brasil: Posição 138 (Universidade arte: a evolução de computação de alto desempenho #12;Máquinas no Brasil na TOP500 Na lista atual não

  20. Irrigation modernization and water conservation in Spain: The case of Riegos del Alto Aragón

    Microsoft Academic Search

    S. Lecina; D. Isidoro; E. Playán; R. Aragüés

    2010-01-01

    This study analyzes the effects of irrigation modernization on water conservation, using the Riegos del Alto Aragón (RAA) irrigation project (NE Spain, 123354ha) as a case study. A conceptual approach, based on water accounting and water productivity, has been used. Traditional surface irrigation systems and modern sprinkler systems currently occupy 73% and 27% of the irrigated area, respectively. Virtually all

  1. Oncology Section Chief at VA Palo Alto Tenure or Medical Center Line Associate Professor or Professor

    E-print Network

    Quake, Stephen R.

    Oncology Section Chief at VA Palo Alto Tenure or Medical Center Line Associate Professor) and Stanford University are recruiting an outstanding physician to be section chief for medical oncology/she will support the strong pre- and post-doctoral educational programs in the Division of Oncology at Stanford

  2. Development of robots for rehabilitation therapy : The Palo Alto VA\\/Stanford experience

    Microsoft Academic Search

    Charles G. Burgar; Peter S. Lum; Peggy C. Shor; H. F. Machiel Van der Loos

    2000-01-01

    Abstract—For over 25 years, personal assistant robots for severely disabled individuals have been in development . More recently, using robots to deliver rehabilitation therapy has been proposed . This paper summarizes,the development,and clinical testing of three mechatronic systems for post-stroke therapy conducted at the VA Palo Alto in collaborationwith Stanford University. We describe the philosophy and experiences that guided their

  3. Hematology/Oncology Section Chief at VA Palo Alto Tenure or Medical Center Line, Associate Professor or Professor

    E-print Network

    Quake, Stephen R.

    Hematology/Oncology Section Chief at VA Palo Alto Tenure or Medical for hematology and oncology. The ideal candidate will be an accomplished physician, clinical, and educational activities of the Hematology and Oncology Sections

  4. Hematology/Oncology Section Chief at VA Palo Alto Tenure or Medical Center Line, Associate Professor or Professor

    E-print Network

    Ford, James

    Hematology/Oncology Section Chief at VA Palo Alto Tenure or Medical Center an outstanding academic leader to serve as section chief for hematology and oncology of the Hematology and Oncology Sections. Experience directing and managing a laboratory

  5. Fuel dynamics by using Landscape Ecology Indices in the Alto Mijares, Spain

    NASA Astrophysics Data System (ADS)

    Iqbal, J.; Garcia, C. V.

    2009-04-01

    Land abandonment in Mediterranean regions has brought about a number of management problems, being an increased wildfire activity prevalent among them. Agricultural neglect in highlands resulted in reduced anthropogenic disturbances and greater landscape homogeneity in areas such as the Alto Mijares in Spain. It is widely accepted that processes like forest fires, influence structure of the landscape and vice versa. Fire-prone Mediterranean flora is well adapted to this disturbance, exhibiting excellent succession capabilities; but higher fuel loads and homogeneous conditions may ally to promote vegetation recession when the fire regime is altered by land abandonment. Both succession and recession make changes to the landscape structure and configuration. However, these changes are difficult to quantify and characterize. If landscape restoration of these forests is a management objective, then developing a quantitative knowledge base for landscape fuel dynamics is a prerequisite. Four classified LandsatTM satellite images were compared to quantify changes in landscape structure between 1984 and 1998. An attempt is made to define landscape level dynamics for fuel development after reduced disturbance and fuel accumulation that leads to catastrophic fires by using landscape ecology indices. By doing so, indices that best describe the fuel dynamics are pointed. The results indicate that low-level disturbance increases heterogeneity, thus lowers fire hazard. No disturbance or severe disturbance increases homogeneity because of vegetation succession and may lead to devastating fires. These fires could be avoided by human induced disturbance like controlled burning, harvesting, mechanical works for fuel reduction and other silviculture measures; thus bringing in more heterogeneity in the region. The Alto Mijares landscape appears to be in an unstable equilibrium where succession and recession are at tug of war. The effects are evident in the general absence of the climax species of Quercus ilex. It have also been recognised that just one index is rarely sufficient to describe the complex dynamics in any landscape; it is usually a group of indices that needs to be consulted in order to perceive the wider picture. The study indicates that there is a need for landscape and social restoration in areas like Alto Mijares to make best use of available resources and avoid catastrophic fires.

  6. Source characteristics of 2000 small earthquakes nucleating on the Alto Tiberina fault system (central Italy).

    NASA Astrophysics Data System (ADS)

    Munafo, I.; Malagnini, L.; Tinti, E.; Chiaraluce, L.; Di Stefano, R.; Valoroso, L.

    2014-12-01

    The Alto Tiberina Fault (ATF) is a 60 km long east-dipping low-angle normal fault, located in a sector of the Northern Apennines (Italy) undergoing active extension since the Quaternary. The ATF has been imaged by analyzing the active source seismic reflection profiles, and the instrumentally recorded persistent background seismicity. The present study is an attempt to separate the contributions of source, site, and crustal attenuation, in order to focus on the mechanics of the seismic sources on the ATF, as well on the synthetic and the antithetic structures within the ATF hanging-wall (i.e. Colfiorito fault, Gubbio fault and Umbria Valley fault). In order to compute source spectra, we perform a set of regressions over the seismograms of 2000 small earthquakes (-0.8 < ML< 4) recorded between 2010 and 2014 at 50 permanent seismic stations deployed in the framework of the Alto Tiberina Near Fault Observatory project (TABOO) and equipped with three-components seismometers, three of which located in shallow boreholes. Because we deal with some very small earthquakes, we maximize the signal to noise ratio (SNR) with a technique based on the analysis of peak values of bandpass-filtered time histories, in addition to the same processing performed on Fourier amplitudes. We rely on a tool called Random Vibration Theory (RVT) to completely switch from peak values in the time domain to Fourier spectral amplitudes. Low-frequency spectral plateau of the source terms are used to compute moment magnitudes (Mw) of all the events, whereas a source spectral ratio technique is used to estimate the corner frequencies (Brune spectral model) of a subset of events chosen over the analysis of the noise affecting the spectral ratios. So far, the described approach provides high accuracy over the spectral parameters of earthquakes of localized seismicity, and may be used to gain insights into the underlying mechanics of faulting and the earthquake processes.

  7. Sero-epidemiological study of canine Leishmania spp. infection in the municipality of Alijó (Alto Douro, Portugal)

    Microsoft Academic Search

    Lu??s Cardoso; Manuela Rodrigues; Helder Santos; Gerard J. Schoone; Pedro Carreta; Eugénio Varejão; Birgit van Benthem; M. Odete Afonso; Carlos Alves-Pires; Saul J. Semião-Santos; Jorge Rodrigues; Henk D. F. H. Schallig

    2004-01-01

    Visceral leishmaniosis caused by Leishmania infantum is a zoonotic disease in the Mediterranean basin. We report an epidemiological survey carried out in dogs from the municipality of Alijó in the endemic region of Alto Douro (north Portugal). Performance of the direct agglutination test (DAT) was assessed in 205 matching samples of blood collected on filter paper and serum. A high

  8. Identificación de oportunidades de mercado y mercadeo con un Enfoque Multi - Cadena para productos agroforestales de Alto Beni, Bolivia

    Microsoft Academic Search

    Julio Cesar Muñoz Espinoza

    Este estudio procura brindar oportunidades de diversificación a los productores cacaoteros de Alto Beni, Bolivia. Los productores cacaoteros se suman en 800 familias afiliadas a la cooperativa El Ceibo, que ha estado brindando facilidades para el acopio y la agregación de valor al cacao, pero que sin embargo, no ha logrado lanzar otros productos que puedan hacerle frente a variantes

  9. ETNOBOTANICAL SURVEY OF MEDICINAL PLANTS IN THE DOMINION OF MEADOWS IN THE REGION OF THE ALTO RIO

    Microsoft Academic Search

    VALÉRIA EVANGELISTA; GOMES RODRIGUES; DOUGLAS ANTÔNIO DE CARVALHO

    A survey was carried out next rural commnunities, in the south of Minas Gerais State, microregion of Alto Rio Grande, cities of Lavras, Carrancas, Ingaí, Ituimirim and Itutinga, in order to know which and for what purpose, the native species of some vegetation formation ( sensu stricto meadow, scrubland, savanna, rupestrian, borders of riverside forest and of hillside) and of

  10. MÉTODOS DE ENSEÑANZA INDIVIDUALIZADA DE ALTO RENDIMIENTO BASADOS EN TAREAS Y APLICADOS A LA ENSEÑANZA DE LAS INGENIERÍAS

    Microsoft Academic Search

    G. DÍAZ; M. CASTRO; E. SANCRISTOBAL; S. MARTÍN

    3 NIEDAX. España. Se presenta en este trabajo nuevos métodos de formación a distancia basados en aprendizaje individualizado mediante tareas orientadas a la resolución de problemas reales en entornos profesionales. Se analizan los sistemas de formación de alto rendimiento IPSS_EE y la plataforma de integración DIPSEIL. Asimismo se muestran los resultados obtenidos mediante su uso en el curso de \\

  11. Combining photogrammetry and laser scanning for the recording and modelling of the Late Intermediate Period site of Pinchango Alto, Palpa, Peru

    Microsoft Academic Search

    Karsten Lambers; Henri Eisenbeiss; Martin Sauerbier; Denise Kupferschmidt; Thomas Gaisecker; Soheil Sotoodeh; Thomas Hanusch

    2007-01-01

    This paper describes the 3D modelling of Pinchango Alto, Peru, based on a combination of image and range data. Digital photogrammetry and laser scanning allow archaeological sites to be recorded efficiently and in detail even under unfavourable conditions. In 2004 we documented Pinchango Alto, a typical site of the hitherto poorly studied Late Intermediate Period on the south coast of

  12. CARTOGRAFIA DELLE ORCHIDEE (ORCHIDACEAE) SPONTANEE IN TRENTINO ñ ALTO ADIGE (ITALIA). RICERCA SULLíERBARIO DELLíUNIVERSIT¿ DI FIRENZE (FI)

    Microsoft Academic Search

    GIORGIO PERAZZA

    Giorgio Perazza - Cartography of wild orchids (Orchidaceae) in Trentino-Alto Adige (Italy) - Research on the herbarium of the University of Florence (FI). The research promoted on herbariums by the Museo Civico of Rovereto in order to gather some useful data for the cartography of the wild orchids (fam. Orchidaceae) which grow in the region Trentino - Alto Adige (northern

  13. Microlensing Events from the 11 Year Observations of the Wendelstein Calar Alto Pixellensing Project

    NASA Astrophysics Data System (ADS)

    Lee, C.-H.; Riffeser, A.; Seitz, S.; Bender, R.; Koppenhoefer, J.

    2015-06-01

    We present the results of the decade-long M31 observation from the Wendelstein Calar Alto Pixellensing Project (WeCAPP). WeCAPP has monitored M31 from 1997 until 2008 in both R- and I-filters, and thus provides the longest baseline of all M31 microlensing surveys. The data are analyzed with difference imaging analysis, which is most suitable for studying variability in crowded stellar fields. We extracted light curves based on each pixel, and devised selection criteria that are optimized to identify microlensing events. This leads to 10 new events, and adds up to a total of 12 microlensing events from WeCAPP, for which we derive their timescales, flux excesses, and colors from their light curves. The colors of the lensed stars fall in the range (R ? I) = 0.56 to 1.36, with a median of 1.0 mag, in agreement with our expectation that the sources are most likely bright, red stars at the post-main-sequence stage. The event FWHM timescales range from 0.5 to 14 days, with a median of 3 days, in good agreement with predictions based on the model of Riffeser et al.

  14. Trend Analysis of Rainfall and Streamflow in "Alto Teles Pires Watershed", Northern Brazil

    NASA Astrophysics Data System (ADS)

    Groppo, J. D.; Pellegrino, G. Q.

    2014-12-01

    In recent decades the development of urban, industrial and agricultural activities, has led to a significant increase in water demand and decrease in both water quantity and quality in worldwide. Trends analysis is an important for the environmental diagnosis in watersheds, allowing evaluate how water bodies are responding through the years the growing anthropogenic interventions. The methodology is divided in graphical analysis and application of trend tests, where initially an exploratory analysis of data is performed, followed by confirmation through statistical tests. In this studied were analyzed the streamflow and rainfall of the "Alto Teles Pires Watershed", northern Brazil, in the period from 1977 to 2009. The Mann Kendall and Pettitt test were used to trends analysis and abrupt changes in the mean, respectively. The results showed in the ten rainfall stations studied significant negative trend mainly between May and July, but abrupt change was not observed. The streamflow also showed the significant negative trend in the three stations studied, with statistically significant changes, mainly in dry season. In addition to decreasing rainfall, the rapid population growth plus the increase of grain crops, has led to an appreciable increase in water consumption in the watershed for urban supply and irrigation, what is probably this fact that can be felt in the drier months in the streamflow. This watershed still do not suffer from the water problem, but if to keep increasing consumption plus the possible impacts of climatic changes, without prior and appropriate planning, which can be obtained, the watershed could suffer future problems regarding of water.

  15. ENVIRONMENTAL EVALUATION OF FLUORIDE IN DRINKING WATER AT “LOS ALTOS DE JALISCO,” IN THE CENTRAL MEXICO REGION

    Microsoft Academic Search

    Roberto Hurtado; Jorge Gardea-Torresdey

    2004-01-01

    Naturally occurring fluoride has been detected and quantified in drinking water in several cities of the “Los Altos de Jalisco” (LAJ) region. LAJ is located in the northeastern part of the state of Jalisco-Mexico, covering an area of 16,410 km with a population of 696,318 in 20 municipalities. Drinking water comes mainly from groundwater aquifers, located in the Trans-Mexican Volcanic

  16. La Coordinacin Docente de Postgrados en Ciencia Poltica y El Instituto de Altos Estudios de Amrica Latina

    E-print Network

    Vásquez, Carlos

    La Coordinación Docente de Postgrados en Ciencia Política y El Instituto de Altos Estudios de Ciencia Política Avances, continuidades y retrocesos políticos, sociales y tecnológicos en América Latina Sartenejas, 27, 28, 29 de Julio de 2011 El Simposio Nacional de Ciencia Política es un lugar de encuentro

  17. Assessment of Change Drivers Affecting the Sustainability of Gravity Fed Water Supply in the Alto Beni Watershed of Bolivia

    NASA Astrophysics Data System (ADS)

    Fry, L. M.; Mihelcic, J. R.; Watkins, D. W.; Reents, N.

    2008-12-01

    In the Alto Beni region of Bolivia, most communities rely on gravity fed systems for their drinking water. Gravity fed drinking water systems are often viewed as a feasible and sustainable method of delivering safe natural spring water to developing communities, because minimal treatment is required and pumping is unnecessary. However, communities in the Alto Beni watershed are finding the need to extend their systems to more distant springs to provide sufficient water. Drivers of change within the watershed that have the potential to affect the sustainability of gravity fed water systems include a 3% population growth rate, an expected 200% increase in agricultural use of land, expansion of water and sanitation coverage (83% and 72% increases in coverage respectively), and a changing climate with a roughly 1.5% projected increase in the mean annual temperature from the 1990s and a 2 to 4% decrease in dry season precipitation by the 2030s. These changes affect both demand and supply from springs. Indicators for these change drivers are evaluated in seventeen watersheds within the Alto Beni. The research presented is the beginning of a monitoring program using low cost methods and local participants to study the impacts of changes on the sustainability of water systems in the region.

  18. Alto Patache fog oasis in the Atacama Desert: Geographical basis for a sustainable development program

    NASA Astrophysics Data System (ADS)

    Calderón, M.; Cereceda, P.; Larrain, H.; Osses, P.; Pérez, L.; Ibáñez, M.

    2010-07-01

    Alto Patache coastal fog oasis is a protected area located south of Iquique, Northern Chile, being presently in charge of the Atacama Desert Center (ADC) research group of the Pontificia Universidad Católica de Chile, since 1997. On 2007, the Chilean Government bestowed a piece of land stretch covering 1,114 hectares to ADC scientific group for scientific research, ecosystem protection and environmental education. This oasis has been recently studied from different points of view: climate, biogeography, fog collection, geomorphology, soil survey and land use planning, plant distribution, conservation and archaeology. During 2009, a study of the geographical basis to elaborate a general management plan was undertaken to collect information to fulfill our planned out objectives. Through this study, georreferenciated strategic information was compiled to evaluate future actions conducting to a sustainable development within the protected area. This information was translated into thematic maps showing the spatial distribution of variables like: climate, geology, geomorphology, soils, vegetation, fauna, archaeological sites and management zones. The methodology used is the analysis of satellite imagery, using GPS by creating a cartographic Data Base incorporated in GIS. Results show that the area starts at the littoral plain, ranging from 500 m to 2.000 m, being continued in parts by a piedmont intercepted by a very abrupt mega-cliff, or hectares of climbing sand dunes leading to a short high plateau limited by a soft hilly area to the East. Two soil types are characteristic: Entisols (Torriorthent) covering the coastal beach sediments, and Aridisols along the cliff and adjacent hills. Vegetation consists not only of a very rich lichen cover, but also of endangered vascular species associations constituting a very fragile sub-tropical coastal desert community, such as Eulychnia, Cumulopuntia, Eriosyce cacti, and Lycium - Nolana- Ephedra communities. Fog oasis stretches from 500/600 m. to 900 m high. Biogeogeographical contrasts between the foggy section, the areas located below the stratocumulus cloud influence (fog), and the higher hills, show interesting results for the understanding of the area complexity. Future human activities at place should be restricted to scientific studies, environmental education and specialized tourism. Some zones, like lichen prairies, should be totally closed for visitors. Protected area management program should be mainly focused in biome conservation and natural resources restauration.

  19. Liquefaction Hazard Maps for Three Earthquake Scenarios for the Communities of San Jose, Campbell, Cupertino, Los Altos, Los Gatos, Milpitas, Mountain View, Palo Alto, Santa Clara, Saratoga, and Sunnyvale, Northern Santa Clara County, California

    USGS Publications Warehouse

    Holzer, Thomas L.; Noce, Thomas E.; Bennett, Michael J.

    2008-01-01

    Maps showing the probability of surface manifestations of liquefaction in the northern Santa Clara Valley were prepared with liquefaction probability curves. The area includes the communities of San Jose, Campbell, Cupertino, Los Altos, Los Gatos Milpitas, Mountain View, Palo Alto, Santa Clara, Saratoga, and Sunnyvale. The probability curves were based on complementary cumulative frequency distributions of the liquefaction potential index (LPI) for surficial geologic units in the study area. LPI values were computed with extensive cone penetration test soundings. Maps were developed for three earthquake scenarios, an M7.8 on the San Andreas Fault comparable to the 1906 event, an M6.7 on the Hayward Fault comparable to the 1868 event, and an M6.9 on the Calaveras Fault. Ground motions were estimated with the Boore and Atkinson (2008) attenuation relation. Liquefaction is predicted for all three events in young Holocene levee deposits along the major creeks. Liquefaction probabilities are highest for the M7.8 earthquake, ranging from 0.33 to 0.37 if a 1.5-m deep water table is assumed, and 0.10 to 0.14 if a 5-m deep water table is assumed. Liquefaction probabilities of the other surficial geologic units are less than 0.05. Probabilities for the scenario earthquakes are generally consistent with observations during historical earthquakes.

  20. Coma imaging of comet P/Brorsen-Metcalf at Calar Alto in late July to mid August 1989

    NASA Technical Reports Server (NTRS)

    Boehnhardt, Hermann; Vanysek, Vladimir; Birkle, K.; Hopp, U.

    1992-01-01

    Comet P/Brorsen-Metcalf was observed on 1989/07/28+30 and on 1989/08/04+12(+14) with the 3.5 m telescope and the 0.8 m Schmidt camera at Calar Alto/Spain. The images exhibit a narrow plasma tail pointing into anti-solar direction. On 1989/07/30 a triple tail was found which can be interpreted as tail ray event. The coma isophotes show prominent asymmetries with the nucleus located on the tailward side of the isophote foci and with a slightly higher brightness in the Northern Hemisphere of the coma. A strong curved jet feature was detected in the coma on 1989/07/30. The jet extended at least 30,000 km into the sunward coma hemisphere. The rotation period of about 1.3 days, estimated from the curvature of the coma jet, needs verification by other observations.

  1. Seismic Activity Along a Low-Angle Normal Fault: The Case Study of the Alto Tiberina Fault (Northern Apennines, Italy).

    NASA Astrophysics Data System (ADS)

    Valoroso, L.; Chiaraluce, L.; Di Stefano, R.

    2014-12-01

    Crustal faults are complex systems whose mechanical conditions and physical properties vary in space and time. The availability of long time series of high-resolution multidisciplinary data is a fundamental requirement to understand the multi-scale physical processes controlling faulting and earthquake generation processes. A crucial step for the seismological community is the availability of high-resolution catalogues of accurate earthquake locations describing the long-term brittle response of the fault activity. We report on the seismicity recorded in a sector of the Northern Apennines undergoing active extension and where a set of high-angle normal faults is detached by the Alto Tiberina low-angle normal fault (ATF). From 2010, this area hosts a research infrastructure (the Alto Tiberina Near Fault Observatory, TABOO), consisting of a dense array of multi-sensor stations, devoted to studying the earthquakes preparatory phase and the fast and slow deformation processes along the ATF fault system. We show the location of about 30k low-magnitude earthquakes recorded during the past 4 years (2010-2014) showing a completeness magnitude of the catalogue of ML0.5. Data have been analyzed by combining an automatic picking procedure for P and S waves, together with cross-correlation and double-difference location methods. The seismicity pattern shows an almost constant and high rate of seismic release along the ATF plane (r = 24.30e?04 eqks/day*km2) with clusters of similar events identified all along the fault plane. On the contrary a long series of low magnitude seismic sequences (Mmax 4.0) activated minor synthetic and antithetic normal faults segments (4-5 km long) located in the main fault hanging-wall. The geometry of the fault segments described by the seismicity distribution is cinematically consistent with the focal mechanisms solutions.

  2. The Eighth International Conference on Computing in Civil and Building Engineering (ICCCBE-VIII), Palo Alto, CA, August 14-17, 2000.

    E-print Network

    Stanford University

    -VIII), Palo Alto, CA, August 14-17, 2000. An Open Collaborative Model for Development of Finite Element a reality. The open source software development process reflects a powerful global trend toward networked Program Jun Peng1 , Frank McKenna2 , Gregory L. Fenves3 and Kincho H. Law4 Abstract An open collaborative

  3. First WSR-88D Documentation of an Anticyclonic Supercell with Anticyclonic Tornadoes: The Sunnyvale Los Altos, California, Tornadoes of 4 May 1998

    Microsoft Academic Search

    John P. Monteverdi; Warren Blier; Greg Stumpf; Wilfred Pi; Karl Anderson

    2001-01-01

    On 4 May 1998, a pair of tornadoes occurred in the San Francisco Bay Area in the cities of Sunnyvale (F2 on the Fujita scale) and Los Altos (F1). The parent thunderstorm was anticyclonically rotating and produced tornadoes that were documented photographically to be anticyclonic as well, making for an extremely rare event. The tornadic thunderstorm was one of several

  4. Health Outreach Program to Educate (HOPE) Palo Alto Shane Morrison, MS1, Krishnan Subrahmanian, MPhil1, Shah Ali, BA1, and Lars Osterberg, MD, MPH2

    E-print Network

    Kay, Mark A.

    Health Outreach Program to Educate (HOPE) Palo Alto Shane Morrison, MS1, Krishnan Subrahmanian mortality rates.1,2,3 New strategies are needed to improve the delivery of health education range of most of these patients.6 In recognition of this inadequacy in patient health education

  5. Pasture evapotranspiration as indicators of degradation in the Brazilian Savanna: a case study for Alto Tocantins watershed

    NASA Astrophysics Data System (ADS)

    Andrade, Ricardo G.; de C. Teixeira, Antônio H.; Sano, Edson E.; Leivas, Janice F.; Victoria, Daniel C.; Nogueira, Sandra F.

    2014-10-01

    The Alto Tocantins watershed, located in the Brazilian Savanna (Cerrado biome), is under an intense land use and occupation process, causing increased pressure on natural resources. Pasture areas in the region are highly relevant to the rational use of natural resources in order to achieve economic and environmental sustainability. In this context, remote sensing techniques have been essential for obtaining information relevant to the assessment of vegetation conditions on a large scale. This study aimed to apply this tool in conjunction with field measurements to evaluate evapotranspiration (ET) against pasture degradation indicators. The SAFER algorithm was applied to estimate ET using MODIS images and weather station data from year 2012. Results showed that ET was lower in degraded pastures. It is noteworthy that during low rainfall period, ET values were 22.2% lower in relation to non-degraded pastures. This difference in ET indicates changes in the partition of the energy balance and may impact the microclimate. These results may contribute to public policies that aim to reduce the loss of the productive potential of pastures.

  6. ¨C¢mo influyen los altos directivos en las pr cticas de RSC? An lisis del efecto mediador del papel percibido de la ‚tica y la responsabilidad social

    Microsoft Academic Search

    Roberto Fern ndez Gago

    2010-01-01

    Partiendo del enfoque Agencia-Stewardship, este trabajo trata de estudiar la importancia de los altos directivos para la implantaci¢n de la Responsabilidad Social Corporativa (RSC). En concreto, se propone que el perfil directivo se relaciona con las pr cticas de RSC, y que dicha relaci¢n est mediada por la relevancia concedida a la ‚tica y la responsabilidad social en la actividad

  7. Lack of identification of Flaviviruses in oral and cloacal swabs from long- and short-distance migratory birds in Trentino-Alto Adige (North-eastern Italy)

    PubMed Central

    2013-01-01

    Background West Nile virus (WNV) and Usutu virus (USUV), both belonging to the genus Flavivirus, are emerging in Italy as important human and animal pathogens. Migratory birds are involved in the spread of Flaviviruses over long distances, particularly from Africa to Europe. Once introduced, these viruses can be further be dispersed by short-distance migratory and resident bird species. Thus far, there is still a considerable knowledge gap on the role played by different bird species in the ecology and transmission mechanisms of these viruses. The Region of Trentino-Alto Adige (north-eastern Italy) is located on the migratory route of many of the short- and long-distance migratory birds that cross the Alps, connecting northern Europe and western Asia with southern Europe and Africa. Until now, only a silent circulation of WNV and USUV within the territory of the Province of Trento has been confirmed by serological screening, whilst no cases of infected humans or animals have so far been reported. However, continuous spillover events of both viruses have been reported in neighbouring Regions. The aim of this study was to monitor the circulation of WNV and USUV in Trentino-Alto Adige, in order to detect if active virus shedding occurs in migratory birds captured during their seasonal movements and to evaluate the role that different bird species could play in the spreading of these viruses. Methods We carried out a biomolecular survey on oral and cloacal swabs collected from migratory birds during seasonal migrations. Birds belonging to 18 transaharian and 21 intrapaleartic species were examined during spring (n?=?176) and autumn (n?=?146), and were tested using a generic nested-PCR. Results All samples tested negative for Flaviviruses. The possible causes of unapparent shedding, along with ecological and epidemiological implications are discussed. Conclusions The lack of detection of active virus shedding in these bird species does not exclude the circulation of these viruses within the Trentino-Alto Adige region, as reported in previous studies. The possible ecological implications are discussed. PMID:24119320

  8. Water and Energy Savings using Demand Hot Water Recirculating Systems in Residential Homes: A Case Study of Five Homes in Palo Alto, California

    SciTech Connect

    Ally, M.R.

    2002-11-14

    This report summarizes a preliminary study aimed at estimating the potential of saving potable water, (and the electrical energy used to heat it), that is presently lost directly to the drain while occupants wait for hot water to arrive at the faucet (point of use). Data were collected from five single-family homes in Palo Alto, California. Despite the small sample size in this study, the results make a compelling case for retrofitting homes with hot water recirculation systems to eliminate unnecessary wastage of water at the point of use. Technical as well as behavioral and attitudinal changes towards water conservation are necessary for a fulfilling and successful conservation effort. This report focuses on the technical issues, but behavioral issues are also noted, which may be factored into future studies involving local and state governments and utility companies.

  9. 1.65 micrometers (H-band) surface photometry of galaxies. IV:observations of 170 galaxies with the Calar Alto 2.2m telescope

    E-print Network

    A. Boselli; G. Gavazzi; P. Franzetti; D. Pierini; M. Scodeggio

    1999-11-22

    We present near-infrared (H band) surface photometry of 170 galaxies, obtained in 1997 using the Calar Alto 2.2m telescope equipped with the NICMOS3 camera MAGIC. The majority of our targets are selected among bright members of the Virgo cluster, however galaxies in the A262 and Cancer clusters and in the Coma/A1367 supercluster are also included. This data set is aimed at complementing the NIR survey in the Virgo cluster discussed in Boselli et al. (1997) and in the Coma Supercluster, presented in Papers I, II and III of this series. Magnitudes at the optical radius, total magnitudes, isophotal radii and light concentration indices are derived. (Tables 1 and 2 are only available in electronic form upon request to gavazzi@uni.mi.astro.it)

  10. Serological survey of Leishmania infection in dogs from the municipality of Peso da Régua (Alto Douro, Portugal) using the direct agglutination test (DAT) and fast agglutination screening test (FAST)

    Microsoft Academic Search

    Lu??s Cardoso; Henk D. F. H Schallig; Francisco Neto; Nel Kroon; Manuela Rodrigues

    2004-01-01

    Leishmaniasis caused by Leishmania infantum is a prevalent disease in dogs and humans. A serological survey of Leishmania infection in dogs was carried out in the endemic region of Alto Douro (north Portugal). Two hundred and ninety-four dogs from the municipality of Peso da Régua were examined for clinical signs of canine leishmaniasis (CanL), and sera samples were evaluated by

  11. Appeared in the Proceedings of Shikakeology: Designing Triggers for Behavior Change, AAAI Spring Symposium Series 2013 Technical Report SS-12-06, pp.107-112, Palo Alto, CA., March 2013.

    E-print Network

    Nakakoji, Kumiyo

    Symposium Series 2013 Technical Report SS-12- 06, pp.107-112, Palo Alto, CA., March 2013. Designing Pseudo-Haptic Software Research Associates Inc., Japan 4259 Nagatsuda, Midori, d 2-32-8 Minami-Ikebukuro, Toshima our approach that uses pseudo-haptic feedback as a shikake to effectively communicate weight

  12. Early to Late Paleoproterozoic magmatism in NE Brazil: The Alto Moxotó Terrane and its tectonic implications for the Pre-West Gondwana assembly

    NASA Astrophysics Data System (ADS)

    Santos, Lauro Cézar Montefalco de Lira; Dantas, Elton Luiz; Santos, Edilton José dos; Santos, Roberto Ventura; Lima, Haroldo Monteiro

    2015-03-01

    The Alto Moxotó Terrane is a Paleoproterozoic inlier within the Transversal Domain of the Neoproterozoic Borborema Province (NE Brazil). An isotopic and whole-rock geochemistry study has been performed in the Sucuru region (Paraiba State, NE Brazil) which revealed a long-lived evolution for this terrane. The first event is Siderian-aged, dated on 2.44 Ga, being represented by granitic to granodioritic banded orthogneisses and migmatites of the basement. They correspond to meta to peraluminous high-K calc-alkaline series, where geochemical patterns besides zircon features and Nd isotopic data indicate that they were formed in a convergent tectonic environment with reworking of an older Archean continental crust. This basement was intruded by different magmatic suites through two distinct tectono-magmatic events. The older one is Rhyacian-aged recorded by emplacement of the Carmo mafic-ultramafic suite and Pedra d'Água granitic suite, with ages varying from 2.15 to 2.0 Ga. The Carmo Suite shows compositions similar to tholeiitic and minor calc-alkaline series and geochemical patterns of a depleted source. These general chemical characteristics are compatible with an arc-related magmatism in early stages of subduction. The Pedra d'Água suite corresponds to middle to peraluminous high-K calc-alkaline magmatism which presents a typical magmatic arc geochemical signature. The negative ?Nd (t) values suggest a strong continental component for genesis of these magmas. The last tectonomagmatic episode occurred in the Statherian-Calymmian boundary and is represented by bimodal magmatic association of the Serra da Barra Suite, dated around 1.6 Ga. The dominant felsic rocks present an evolved composition and correspond to typical metaluminous sub-alkaline suite. The trace-element and REE patterns of both mafic and mainly felsic rocks suggest a within-plate setting. The attributed source is of crustal derivation, which is supported by the negative ?Nd (t) values. A mantle plume can be invoked for mechanism of generation of the Serra da Barra magmatism. This polycyclic Paleoproterozoic evolution observed at Alto Moxotó terrane is also well documented in orogenic terranes worldwide, mainly those related to Atlantica supercontinent amalgamation. On the other hand, Statherian-Calymmian extensional event is also coherent with worldwide descriptions and are commonly referred to early break-up stage of the large Paleoproterozoic land masses.

  13. An automatic modular procedure to generate high-resolution earthquake catalogues: application to the Alto Tiberina Near Fault Observatory (TABOO), Italy.

    NASA Astrophysics Data System (ADS)

    Di Stefano, R.; Chiaraluce, L.; Valoroso, L.; Waldhauser, F.; Latorre, D.; Piccinini, D.; Tinti, E.

    2014-12-01

    The Alto Tiberina Near Fault Observatory (TABOO) in the upper Tiber Valley (northern Appennines) is a INGV research infrastructure devoted to the study of preparatory processes and deformation characteristics of the Alto Tiberina Fault (ATF), a 60 km long, low-angle normal fault active since the Quaternary. The TABOO seismic network, covering an area of 120 × 120 km, consists of 60 permanent surface and 250 m deep borehole stations equipped with 3-components, 0.5s to 120s velocimeters, and strong motion sensors. Continuous seismic recordings are transmitted in real-time to the INGV, where we set up an automatic procedure that produces high-resolution earthquakes catalogues (location, magnitudes, 1st motion polarities) in near-real-time. A sensitive event detection engine running on the continuous data stream is followed by advanced phase identification, arrival-time picking, and quality assessment algorithms (MPX). Pick weights are determined from a statistical analysis of a set of predictors designed to correctly apply an a-priori chosen weighting scheme. The MPX results are used to routinely update earthquakes catalogues based on a variety of (1D and 3D) velocity models and location techniques. We are also applying the DD-RT procedure which uses cross-correlation and double-difference methods in real-time to relocate events with high precision relative to a high-resolution background catalog. P- and S-onset and location information are used to automatically compute focal mechanisms, VP/VS variations in space and time, and periodically update 3D VP and VP/VS tomographic models. We present results from four years of operation, during which this monitoring system analyzed over 1.2 million detections and recovered ~60,000 earthquakes at a detection threshold of ML 0.5. The high-resolution information is being used to study changes in seismicity patterns and fault and rock properties along the ATF in space and time, and to elaborate ground shaking scenarios adopting diverse slip distributions and rupture directivity models.

  14. Omega Prime: the wide-field near-infrared camera for the 3.5-m telescope of the Calar Alto Observatory

    NASA Astrophysics Data System (ADS)

    Bizenberger, Peter; McCaughrean, Mark J.; Birk, Christoph; Thompson, Dave; Storz, Clemens

    1998-08-01

    Omega Prime is a wide-field near-IR camera for the prime focus of the Calar Alto 3.5 m telescope in Spain. The detector is a 1024 X 1024 pixel HAWAII array made by Rockwell. The image scale is 0.4 arcsec/pixel, giving a field of view of 6.8 by 6.8 arcmin. In order to maximize the throughput, the optics were designed as a prime focus corrector with only three lenses. This simple design without a cold pupil provides an excellent image quality over the entire field of view. To reduce thermal background at wavelengths longer than 2.2 micrometers , Omega Prime has a series of cold internal baffles and an additional torodial mirror outside the dewar. This annular reflector causes detector pixels to 'see' mostly the cold interior of the camera. The camera has been in operation since May 1996 and has been used for a variety of scientific programs. Including a very deep K survey covering 1000 square arcmin to a 5 (sigma) limit for point-sources of 20.5 magnitude.

  15. An investigation of ground-water recharge by injection in the Palo Alto Baylands, California : hydraulic and chemical interactions; final report

    USGS Publications Warehouse

    Hamlin, S.N.

    1985-01-01

    The U.S. Geological Survey, in cooperation with the Santa Clara Valley Water District, has completed a study of ground-water recharge by injection in the Palo Alto baylands along San Francisco Bay, California. Selected wells within the Water District 's injection-extraction network were monitored to determine hydraulic and chemical interactions affecting well-field operation. The well field was installed to prevent and eliminate saline contamination in the local shallow aquifer system. The primary focus of this study is on factors that affect injection efficiency, specifically well and aquifer clogging. Mixing and break-through curves for major chemical constituents indicate ion exchange, adsorption, and dissolution reactions. Freshwater breakthrough was detected in water-level data, which reflected fluid-density change as well as head buildup. Dissolution of calcium carbonate caused by dilution of saline ground water probably accounts for an apparent increase in specific capacity possibly related to improved aquifer permeability. Adsorption evidently removed trace elements during passage of injected water through the aquifer. In terms of hydraulic and chemical compatibility, the well field is a viable system for ground-water recharge. Aquifer heterogeneity and operational constraints reduce the efficiency of the system. Efficiency may be maximized by careful attention to extraction distribution and quantity and to injection distribution, quantity, and water quality. (USGS)

  16. South San Francisco Bay tidal marsh vegetation and elevation surveys-Corkscrew Marsh, Bird Island, and Palo Alto Baylands, California, 1983

    USGS Publications Warehouse

    Orlando, James L.; Drexler, Judy Z.; Dedrick, Kent G.

    2005-01-01

    Changes in the topography and ecology of the San Francisco Bay Estuary ('Estuary') during the past 200 years have resulted in the loss of nearly 80 percent of the historical salt marsh in the region. Currently, numerous projects are being undertaken by federal, state, and local governments in an attempt to restore wetland habitat and ecosystem function at a number of locations within the Estuary. Much information is needed concerning the historical topographic and ecologic characteristics of the Estuary to facilitate these restoration efforts. This report presents previously unpublished vegetation and elevation data collected in 1983 by the California State Lands Commission at Corkscrew marsh, Bird Island, and Palo Alto Baylands, all located in South San Francisco Bay. These precise and detailed elevation and plant surveys represent a snapshot of South Bay flora before invasion by the Atlantic smooth cordgrass, Spartina alterniflora. Such precise elevation data are rare for relatively undisturbed marshes in the San Francisco Bay; publication of these historical data may facilitate wetland restoration efforts. Marsh-surface and tidal-channel elevations were determined at a total of 962 stations by differential leveling to established tidal benchmark stations at each site and referenced to Mean Lower Low Water (MLLW) relative to the National Tidal Datum Epoch (1960-78). In addition, presence or absence of nine salt marsh species, percentage plant cover, and percentage bare soil were recorded for 1-square meter quadrats at 648 stations where elevations were determined. Collectively, over the three sites, salt marsh vegetation ranged in elevation from 0.98 to 2.94 m above MLLW. S. foliosa and Salicornia virginica were the most frequently observed plant species. Atriplex patula, Deschampsia cespitosa, and Limonium californicum were each recorded at only one of the three sites.

  17. Implications of agricultural land use for sustainability of gravity fed water distribution systems relying on natural springs in the Alto Beni Region of Bolivia

    NASA Astrophysics Data System (ADS)

    Fry, L. M.; Watkins, D. W.; Mihelcic, J. R.; Reents, N.

    2009-12-01

    Gravity-fed distribution systems from natural springs are frequently used as a method for providing drinking water to developing communities throughout the world. They are seen as an appropriate technology for their relatively simple operation and maintenance requirements. Spring discharge, however, depends on recharge rates in the spring’s catchment area, and the storage and distribution system must be designed with this potentially non-stationary input in mind. The dependence of recharge rates on land use varies with slope, soil type, vegetation, and humidity of the region. Therefore, in many developing communities where there is little watershed monitoring, little is known about how changes in land use may result in variability or long term trends in spring flow. Appropriate, low cost methods that can be carried out with local knowledge and labor are required for assessing the sustainability of natural springs as sources of drinking water in local settings, especially where land use is rapidly changing. We present results from an analysis evaluating the sustainability of discharge from springs supplying gravity-fed water systems in the Alto Beni region of Bolivia, where land use is rapidly changing from forest to agriculture. This analysis is accomplished using appropriate data collection methods with the assistance of local technicians and could be readily transferred to other watershed studies in developing communities. The study involves eleven local watersheds with varying percentage of land use devoted to agriculture area. Preliminary results show that discharge variability is higher in watersheds with more agriculture, suggesting that recharge rates in the region decrease with increased land area devoted to agriculture.

  18. Active tectonic extension across the Alto Tiberina normal fault system from GPS data modeling and InSAR velocity maps: new perspectives within TABOO Near Fault Observatory

    NASA Astrophysics Data System (ADS)

    Vadacca, Luigi; Anderlini, Letizia; Casarotti, Emanuele; Serpelloni, Enrico; Chiaraluce, Lauro; Polcari, Marco; Albano, Matteo; Stramondo, Salvatore

    2014-05-01

    The Alto Tiberina fault (ATF) is a low-angle (east-dipping at 15°) normal fault (LANF) 70 km long placed in the Umbria-Marche Apennines (central Italy), characterized by SW-NE oriented extension occurring at rates of 2-3 mm/yr. These rates were measured by continuous GPS stations belonging to several networks, which are denser in the study area thanks to additional sites recently installed in the framework of the INGV national RING network and of the ATF observatory. In this area historical and instrumental earthquakes mainly occur on west-dipping high-angle normal faults. Within this context the ATF has accumulated 2 km of displacement over the past 2 Ma, but at the same time the deformation processes active along this misoriented fault, as well as its mechanical behavior, are still unknown. We tackle this issue by solving for interseismic deformation models obtained by two different methods. At first, through the 2D and 3D finite element modeling, we define the effects of locking depth, synthetic and antithetic fault activity and lithology on the velocity gradient measured along the ATF system. Subsequently through a block modeling approach, we model the GPS velocities by considering the major fault systems as bounds of rotating blocks, while estimating the corresponding geodetic fault slip-rates and maps of heterogeneous fault coupling. Thanks to the latest imaging of the ATF deep structure obtained from seismic profiles, we improve the proposed models by modeling the fault as a complex rough surface to understand where the stress accumulations are located and the interseismic coupling changes. The preliminary results obtained show firstly that the observed extension is mainly accommodated by interseismic deformation on both the ATF and antithetic faults, highlighting the important role of this LANF inside an active tectonic contest. Secondarily, using the ATF surface "topography", we find an interesting correlation between microseismicty and creeping portions of the ATF. Future perspectives within this study is to validate these models using velocity maps and temporal series provided by Differential Interferometric SAR (DInSAR) technique applied to a datasets of ERS 1-2 and ENVISAT SAR images. These data cover a time interval spanning from 1992 to 2010 and have been acquired along both ascending and descending orbit. In addition we will deploy a network of SAR passive Corner Reflectors (CRs) in the proximity of GPS monuments in order to calibrate the results of processing a set of COSMO-SkyMed SAR data and derive velocity maps. Thus the availability of high-resolution data will contribute to understand the mechanics of the LANFs and to evaluate the seismic potential associated to these geologic structures.

  19. Evaluation of the MMF (Morgan-Morgan-Finney) model based on soil loss experimental data from vineyards in Alto Monferrato area (NW Italy)

    NASA Astrophysics Data System (ADS)

    Biddoccu, Marcella; Cavallo, Eugenio

    2010-05-01

    Soil erosion in sloping vineyards is a serious threat, made worse by climate change and mechanisation. Machinery traffic influences soil physical properties resulting in lower water infiltration capacity, higher runoff and soil losses. Between 2000 and 2008 measurements have been conducted at an experimental vineyard with rows along the slope in the 'Alto Monferrato' area (Piedmont, NW Italy) in order to evaluate runoff and soil losses. Three plots are monitored to compare different inter-rows management practices: controlled grass cover, conventional and reduced tillage. Agriculture soil management practices affect soil losses. Each plot is 1200 m2 wide and its average slope is about 25 %. Rainfall was recorded and runoff and sediments were collected at the bottom of each plot by a drain connected with a tipping bucket device. This was designed to measure total runoff and to sample a portion of the runoff-sediment mixture. Collected sediments were then ovendried and weighed. Collected data show that runoff generally increased with the rainfall amount and was lower from the grass covered plot than others, especially when the event rainfall was higher than 60 mm. Soil loss increased with the maximum rainfall intensity registered during the event. Mean annual soil losses measured over the 9 years period are 16.1 Mg ha-1in the reduced tilled plot, 13.4 Mg ha-1 in the traditionally tilled plot and 3.2 Mg ha-1 with the controlled grass cover. A single summer storm caused the highest soil losses, which were higher than 18 Mg ha-1 in the tilled plots. The maintenance of controlled grass cover inter-rows allows protecting soil from erosion: the total soil loss was up to 80% lower than in the tilled plots. The protective action of the grass cover is effective also during storms and intense rainfalls, which are more erosiveness. Soil physical properties were also measured. Field data about percentage of clay, silt and sand, soil moisture at field capacity, bulk density and hydraulic conductivity are available for each plot. They have been used, besides to climate data and land cover guide values, as input parameter in the modified Morgan-Morgan-Finney model (Morgan & Duzant, 2008), specifically elaborated to evaluate effects of crops and vegetation on soil erosion. The model output has been compared with experimental data, in order to validate the model performance. Expected annual soil loss calculated for each plot is consistent with the mean value obtained in the period of observation.

  20. Near field receiving water monitoring of trace metals in clams (Macoma balthica) and sediments near the Palo Alto water quality control plant in south San Francisco Bay, California : 2002

    USGS Publications Warehouse

    Moon, Edward; David, Carlos Primo C.; Luoma, Samuel N.; Cain, Daniel J.; Hornberger, Michelle I.; Lavigne, Irene R.

    2003-01-01

    This report presents trace element concentrations analyzed on samples of fine-grained sediments and clams (Macoma balthica) collected from a mudflat one kilometer south of the discharge of the Palo Alto Regional Water Quality Control Plant in South San Francisco Bay. This report serves as a continuation of the Near Field Receiving Water Monitoring Study, which was started in 1994. The data for 2002, herein, are interpreted within that context. Metal concentrations in both sediments and clam tissue samples have been within the range of values produced by seasonal variability. However, copper and zinc, display continued decreases. Copper in sediment was observed to drop below the ERL (Effects Range-Low) concentration for the third consecutive year and zinc concentrations never exceeded the ERL. Yearly average concentrations of copper, zinc and silver in Macoma balthica for 2002 are some of the lowest recorded since monitoring began in 1975. Mercury and selenium concentrations in sediments and clams at Palo Alto were similar concentrations observed elsewhere in the San Francisco Bay.

  1. Near field receiving water monitoring of trace metals in clams (macoma balthica) and sediments near the Palo Alto Water Quality Control Plant in South San Francisco Bay, California: 2000

    USGS Publications Warehouse

    Moon, Edward; Luoma, Samuel N.; Cain, Daniel J.; Hornberger, Michelle I.; David, Carlos Primo C.

    2004-01-01

    Trace element concentrations were analyzed on samples of fine-grained sediments and clams (Macoma balthica) collected from a mudflat one kilometer south of the discharge of the Palo Alto Regional Water Quality Control Plant in South San Francisco Bay. This report serves as a continuation of the Near Field Receiving Water Monitoring Study, which was started in 1994. The data for 2003, herein, are interpreted within that context. Metal concentrations in both sediments and clam tissue samples have been within the range of values produced by seasonal variability; however, copper and zinc, display continued decreases over the last decade. In 2003, copper in sediment was observed to drop below the ERL (Effects Range-Low) concentration for the third consecutive year and zinc concentrations never exceeded the ERL. Yearly average concentrations of copper, zinc and silver in Macoma balthica for 2003 are some of the lowest recorded since monitoring began in 1975. Mercury and selenium concentrations in sediments and clams at Palo Alto were similar to concentrations observed elsewhere in the San Francisco Bay.

  2. Proceedings of MST10, 13-20 May 2003, Piura, Peru 1 RETRIEVAL OF ATMOSPHERIC STATIC STABILITY FROM MST

    E-print Network

    Kirkwood, Sheila

    of the Brunt-V¨ais¨al¨a frequency, ¾ (rad¾ s ¾ ): ¾ Þ ÐÒ Þ (1) where (K) is potential temperature [ Ì´½¼¼¼ Ôµ phenomena including fronts, gravity waves and turbulence. Moreover, the variations of ¾ as a function

  3. Near-field receiving water monitoring of trace metals and a benthic community near the Palo Alto Regional Water Quality Control Plant in south San Francisco Bay, California, 2012

    USGS Publications Warehouse

    Dyke, Jessica L.; Thompson, Janet K.; Cain, Daniel J.; Kleckner, Amy E.; Parchaso, Francis; Luoma, Samuel N.; Hornberger, Michelle I.

    2013-01-01

    Trace-metal concentrations in sediment and in the clam Macoma petalum (formerly reported as Macoma balthica), clam reproductive activity, and benthic macroinvertebrate community structure were investigated in a mudflat 1 kilometer south of the discharge of the Palo Alto Regional Water Quality Control Plant (PARWQCP) in South San Francisco Bay, Calif. This report includes the data collected by U.S. Geological Survey (USGS) scientists for the period January to December 2012. These data serve as the basis for the City of Palo Alto’s Near-Field Receiving Water Monitoring Program, initiated in 1994. Following significant reductions in the late 1980s, silver (Ag) and copper (Cu) concentrations in sediment and in M. petalum appear to have stabilized. Data for other metals, including chromium (Cr), mercury (Hg), nickel (Ni), selenium (Se), and zinc (Zn), have been collected since 1994. Over this period, concentrations of these elements have remained relatively constant, aside from seasonal variation that is common to all elements. In 2012, concentrations of Ag and Cu in M. petalum varied seasonally in response to a combination of site-specific metal exposures and annual growth and reproduction, as reported for previous time periods. Seasonal patterns for other elements, including Cr, Ni, Zn, Hg, and Se were generally similar in timing and magnitude as those for Ag and Cu. In 2012, metal concentrations in both sediments and clam tissue were among the lowest concentrations on record. This record suggests that regional-scale factors now largely control sedimentary and bioavailable concentrations of Ag and Cu, as well as other elements of regulatory interest, at the Palo Alto site. Analyses of the benthic community structure of a mudflat in South San Francisco Bay over a 39-year period show that changes in the community have occurred concurrent with reduced concentrations of metals in the sediment and in the tissues of the biosentinel clam, M. petalum, from the same area. Analysis of the M. petalum community shows increases in reproductive activity concurrent with the decline in metal concentrations in the tissues of this organism. Reproductive activity is presently stable (2012), with almost all animals initiating reproduction in the fall and spawning the following spring. The community has shifted from being dominated by several opportunistic species to a community where the species are more similar in abundance, a pattern that indicates a more stable community that is subjected to fewer stressors. In addition, two of the opportunistic species (Ampelisca abdita and Streblospio benedicti) that brood their young and live on the surface of the sediment in tubes have shown a continual decline in dominance coincident with the decline in metals; both species had short-lived rebounds in abundance in 2008, 2009, and 2010. Heteromastus filiformis (a subsurface polychaete worm that lives in the sediment, consumes sediment and organic particles residing in the sediment, and reproduces by laying its eggs on or in the sediment) showed a concurrent increase in dominance and, in the last several years before 2008, showed a stable population. H. filiformis abundance increased slightly in 2011–2012. An unidentified disturbance occurred on the mudflat in early 2008 that resulted in the loss of the benthic animals, except for those deep-dwelling animals like Macoma petalum. Animals immediately returned to the mudflat in 2008, which was the first indication that the disturbance was not due to a persistent toxin or to anoxia. The reproductive mode of most species present in 2012 is reflective of the species that were available either as pelagic larvae or as mobile adults. Although oviparous species were lower in number in this group, the authors hypothesize that these species will return slowly as more species move back into the area. The use of functional ecology was highlighted in the 2012 benthic community data, which show that the animals that have now returned to the mudflat are those that can respond successfully to a physical, nontoxic dist

  4. Near-field receiving water monitoring of trace metals and a benthic community near the Palo Alto Regional Water Quality Control Plant in South San Francisco Bay, California: 2013

    USGS Publications Warehouse

    Dyke, Jessica L.; Cain, Daniel J.; Thompson, Janet K.; Kleckner, Amy E.; Parchaso, Francis; Hornberger, Michelle I.; Luoma, Samuel N.

    2014-01-01

    Trace-metal concentrations in sediment and in the clam Macoma petalum (formerly reported as Macoma balthica), clam reproductive activity, and benthic macroinvertebrate community structure were investigated in a mudflat 1 kilometer south of the discharge of the Palo Alto Regional Water Quality Control Plant (PARWQCP) in South San Francisco Bay, Calif. This report includes the data collected by U.S. Geological Survey (USGS) scientists for the period January 2013 to December 2013. These data serve as the basis for the City of Palo Alto’s Near-Field Receiving Water Monitoring Program, initiated in 1994. Following significant reductions in the late 1980s, silver (Ag) and copper (Cu) concentrations in sediment and M. petalum appear to have stabilized. Data for other metals, including chromium (Cr), mercury (Hg), nickel (Ni), selenium (Se), and zinc (Zn), have been collected since 1994. Over this period, concentrations of these elements have remained relatively constant, aside from seasonal variation that is common to all elements. In 2013, concentrations of Ag and Cu in M. petalum varied seasonally in response to a combination of site-specific metal exposures and annual growth and reproduction, as reported previously. Seasonal patterns for other elements, including Cr, Ni, Zn, Hg, and Se, were generally similar in timing and magnitude as those for Ag and Cu. In M. petalum, all observed elements showed annual maxima in January–February and minima in April, except for Zn, which was lowest in December. In sediments, annual maxima also occurred in January–February, and minima were measured in June and September. In 2013, metal concentrations in both sediments and clam tissue were among the lowest concentrations on record. This record suggests that regional-scale factors now largely control sedimentary and bioavailable concentrations of Ag and Cu, as well as other elements of regulatory interest, at the Palo Alto site. Analyses of the benthic community structure of a mudflat in South San Francisco Bay over a 40-year period show that changes in the community have occurred concurrent with reduced concentrations of metals in the sediment and in the tissues of the biosentinel clam, M. petalum, from the same area. Analysis of the M. petalum community shows increases in reproductive activity concurrent with the decline in metal concentrations in the tissues of this organism. Reproductive activity is presently stable (2013), with almost all animals initiating reproduction in the fall and spawning the following spring. The community has shifted from being dominated by several opportunistic species to a community where the species are more similar in abundance, a pattern that indicates a more stable community that is subjected to fewer stressors. In addition, two of the opportunistic species (Ampelisca abdita and Streblospio benedicti) that brood their young and live on the surface of the sediment in tubes have shown a continual decline in dominance coincident with the decline in metals; both species had short-lived rebounds in abundance in 2008, 2009, and 2010. Heteromastus filiformis (a subsurface polychaete worm that lives in the sediment, consumes sediment and organic particles residing in the sediment, and reproduces by laying its eggs on or in the sediment) showed a concurrent increase in dominance and, in the last several years before 2008, showed a stable population. H. filiformis abundance increased slightly in 2011–2012 and returned to pre-2011 numbers in 2013. An unidentified disturbance occurred on the mudflat in early 2008 that resulted in the loss of the benthic animals, except for those deep-dwelling animals like Macoma petalum. Animals immediately returned to the mudflat in 2008, which was the first indication that the disturbance was not due to a persistent toxin or to anoxia. The reproductive mode of most species present in 2013 is reflective of the species that were available either as pelagic larvae or as mobile adults. Although oviparous species were lower in number in this group, the authors hypothesize that th

  5. Near-field receiving water monitoring of trace metals and a benthic community near the Palo Alto Regional Water Quality Control Plant in south San Francisco Bay, California: 2011

    USGS Publications Warehouse

    Dyke, Jessica L.; Thompson, Janet K.; Cain, Daniel J.; Kleckner, Amy E.; Parchaso, Francis; Luoma, Samuel N.; Hornberger, Michelle I.

    2012-01-01

    Trace-metal concentrations in sediment and in the clam Macoma petalum (formerly reported as Macoma balthica), clam reproductive activity, and benthic macroinvertebrate community structure were investigated in a mudflat 1 kilometer south of the discharge of the Palo Alto Regional Water Quality Control Plant (PARWQCP) in South San Francisco Bay, Calif. This report includes the data collected by U.S. Geological Survey (USGS) scientists for the period January 2011 to December 2011. These data serve as the basis for the City of Palo Alto's Near-Field Receiving Water Monitoring Program, initiated in 1994. Following significant reductions in the late 1980s, silver (Ag) and copper (Cu) concentrations in sediment and M. petalum appear to have stabilized. Data for other metals, including chromium, mercury, nickel, selenium, and zinc, have been collected since 1994. Over this period, concentrations of these elements have remained relatively constant, aside from seasonal variation that is common to all elements. In 2011, concentrations of Ag and Cu in M. petalum varied seasonally in response to a combination of site-specific metal exposures and annual growth and reproduction, as reported previously. Seasonal patterns for other elements, including Cr, Hg, Ni, Se, and Zn, were generally similar in timing and magnitude as those for Ag and Cu. In 2011, metal concentrations in both sediments and clam tissue were among the lowest concentrations on record. This record suggests that regional-scale factors now largely control sedimentary and bioavailable concentrations of Ag and Cu, as well as other elements of regulatory interest, at the Palo Alto site. Analyses of the benthic community structure of a mudflat in South San Francisco Bay over a 38-year period show that changes in the community have occurred concurrent with reduced concentrations of metals in the sediment and in the tissues of the biosentinel clam, M. petalum, from the same area. Analysis of the M. petalum community shows increases in reproductive activity concurrent with the decline in metal concentrations in the tissues of this organism. Reproductive activity is presently stable (2011), with almost all animals initiating reproduction in the fall and spawning the following spring. The community has shifted from being dominated by several opportunistic species to a community where the species are more similar in abundance, a pattern that indicates a more stable community that is subjected to fewer stressors. In addition, two of the opportunistic species (Ampelisca abdita and Streblospio benedicti) that brood their young and live on the surface of the sediment in tubes have shown a continual decline in dominance coincident with the decline in metals; both species had short-lived rebounds in abundance in 2008, 2009, and 2010. Heteromastus filiformis (a subsurface polychaete worm that lives in the sediment, consumes sediment and organic particles residing in the sediment, and reproduces by laying its eggs on or in the sediment) showed a concurrent increase in dominance and, in the last several years before 2008, showed a stable population. H. filiformis abundance increased slightly in 2011. An unidentified disturbance occurred on the mudflat in early 2008 that resulted in the loss of the benthic animals, except for those deep-dwelling animals like Macoma petalum. Animals immediately returned to the mudflat in 2008, which was the first indication that the disturbance was not due to a persistent toxin or to anoxia. The reproductive mode of most species present in 2011 is reflective of the species that were available either as pelagic larvae or as mobile adults. Although egg layers were lower in number in this group, the authors hypothesize that these species will return slowly as more species move back into the area. The use of functional ecology was highlighted in the 2011 benthic community data, which show that the animals that have now returned to the mudflat are those that can respond successfully to a physical, nontoxic disturbance. Today, community data show a mix of animals

  6. Near-field receiving water monitoring of trace metals and a benthic community near the Palo Alto regional water quality control plant in south San Francisco Bay, California: 2005

    USGS Publications Warehouse

    Cain, Daniel J.; Parchaso, Francis; Thompson, Janet K.; Luoma, Samuel N.; Lorenzi, Allison H.; Moon, Edward; Shouse, Michelle K.; Hornberger, Michelle I.; Dyke, Jessica L.

    2006-01-01

    Trace elements in sediment and the clam Macoma petalum (formerly reported as Macoma balthica (Cohen and Carlton 1995), clam reproductive activity and benthic, macroinvertebrate community structure are reported for a mudflat one kilometer south of the discharge of the Palo Alto Regional Water Quality Control Plant in South San Francisco Bay. This report includes data collected for the period January to December 2005, and extends a critical long-term biogeochemical record dating back to 1974. These data serve as the basis for the City of Palo Alto's Near-Field Receiving Water Monitoring Program, initiated in 1994. Metal concentrations in both sediments and clam tissue during 2005 were consistent with results observed since 1990. Copper and zinc concentrations in sediment and bivalve tissue displayed a continued decrease over the last decade. In 2005, Cu concentrations were at or below the effects range-low (ERL) concentration (34 ?g/g) for the entire year, the first time this has been observed. Also, zinc concentrations never exceeded the ERL (150 ?g/g). Yearly average concentrations of copper, zinc and silver in Macoma petalum for 2005 were some of the lowest recorded since monitoring for metals began in 1975. The concentrations of mercury and selenium in sediments, during April and January 2004, respectively, were the highest values observed for these elements during this study. Later in 2005, concentrations decreased to historic levels. The increase in mercury and selenium in 2004 was not a permanent trend and concentrations of these elements in sediments and clams at Palo Alto remain similar to concentrations observed elsewhere in the San Francisco Bay. Analyses of the benthic-community structure of a mudflat in South San Francisco Bay over a 31-year period show that changes in the community have occurred concurrent with reduced concentrations of metals in the sediment and in the tissues of the biosentinal clam Macoma petalum from the same area. Analysis of the reproductive activity of M. petalum shows increases in reproductive activity concurrent with the decline in metal concentrations in the tissues of this organism. Reproductive activity is presently stable with almost all animals initiating reproduction in the fall and spawning the following spring of most years. The community has shifted from being dominated by several opportunistic species to a community where the species are more similar in abundance, a pattern that suggests a more stable community that is subjected to less stress. In addition, two of the opportunistic species (Ampelisca abdita and Streblospio benedicti) that brood their young and live on the surface of the sediment in tubes have shown a continual decline in dominance coincident with the decline in metals. Heteromastus filiformis, a subsurface polychaete worm that lives in the sediment, consumes sediment and organic particles residing in the sediment, and reproduces by laying their eggs on or in the sediment has shown a concurrent increase in dominance. These changes in species dominance reflect a change in the community from one dominated by surface dwelling, brooding species to one with species with varying life history characteristics. For the first time since its invasion in 1986, the non-indigenous filter-feeding bivalve Corbula (Potamocorbula) amurensis has shown up in small but persistent numbers in the benthic community.

  7. Near-Field Receiving Water Monitoring of Trace Metals and a Benthic Community Near the Palo Alto Regional Water Quality Control Plant in South San Francisco Bay, California: 2007

    USGS Publications Warehouse

    Lorenzi, Allison H.; Cain, Daniel J.; Parchaso, Francis; Thompson, Janet K.; Luoma, Samuel N.; Hornberger, Michelle I.; Dyke, Jessica L.

    2008-01-01

    Results reported herein include trace element concentrations in sediment and in the clam Macoma petalum (formerly reported as Macoma balthica (Cohen and Carlton 1995)), clam reproductive activity, and benthic macroinvertebrate community structure for a mudflat one kilometer south of the discharge of the Palo Alto Regional Water Quality Control Plant in South San Francisco Bay. This report includes data collected for the period January 2007 to December 2007, and extends a critical long-term biogeochemical record dating back to 1974. These data serve as the basis for the City of Palo Alto?s Near-Field Receiving Water Monitoring Program, initiated in 1994. Metal concentrations in both sediments and clam tissue during 2007 remained consistent with results observed since 1990. Most notably, copper and silver concentrations in sediment and clam tissue are elevated for the second consecutive year, but the values remain well within the range of past findings. Other metals such as chromium, nickel, vanadium, and zinc remained relatively constant throughout the year except for maximum values that generally occur in winter months (January-March). Mercury levels in sediment and clam tissue were some of the lowest seen on record. Last year?s elevated selenium levels appear to be transient, and selenium concentrations have returned to background levels. Overall, metal concentrations in sediments and tissue remain within past findings. Analyses of the benthic-community structure of a mudflat in South San Francisco Bay over a 31-year period show that changes in the community have occurred concurrent with reduced concentrations of metals in the sediment and in the tissues of the biosentinel clam, M. petalum, from the same area. Analysis of the reproductive activity of M. petalum shows increases in reproductive activity concurrent with the decline in metal concentrations in the tissues of this organism. Reproductive activity is presently stable, with almost all animals initiating reproduction in the fall and spawning the following spring of most years. The community has shifted from being dominated by several opportunistic species to a community where the species are more similar in abundance, a pattern that suggests a more stable community that is subjected to less stress. In addition, two of the opportunistic species (Ampelisca abdita and Streblospio benedicti) that brood their young and live on the surface of the sediment in tubes, have shown a continual decline in dominance coincident with the decline in metals. Heteromastus filiformis, a subsurface polychaete worm that lives in the sediment, consumes sediment and organic particles residing in the sediment, and reproduces by laying their eggs on or in the sediment, has shown a concurrent increase in dominance and is now showing signs of population stability. These changes in species dominance reflect a change in the community from one dominated by surface dwelling, brooding species to one with species with varying life history characteristics.

  8. A novel association between Rhodnius neglectus and the Livistona australis palm tree in an urban center foreshadowing the risk of Chagas disease transmission by vectorial invasions in Monte Alto City, São Paulo, Brazil.

    PubMed

    Carvalho, Danila B; Almeida, Carlos E; Rocha, Cláudia S; Gardim, Sueli; Mendonça, Vagner J; Ribeiro, Aline R; Alves, Zulimar C P V T; Ruellas, Kellem T; Vedoveli, Alan; da Rosa, João A

    2013-10-18

    After several public notifications of domiciliary invasions, palm trees were investigated in downtown Monte Alto City, São Paulo State, Brazil, in proximity to the city hall building, the main church, condominiums and marketing establishments. One hundred seventy four palm trees of 10 species were investigated, in which 72 specimens of Rhodnius neglectus, a potential Chagas disease vector, were captured via manual methods. All insects were collected from dead leaves, organic debris and bird nests in the only three Livistona australis palm trees in the central park square. This was the first record of R. neglectus colonizing this palm species. Although no Trypanosoma cruzi was found by abdominal compression followed by light microscopy, the poor nutritional status of the bugs hampered the examination of gut contents for parasite detection. Furthermore, the central crowns of the trees, which shelter bats (Chiroptera: Mammalia), could not be carefully searched for insects due to difficult access. This new finding highlights the sudden alteration in insect behavior, probably as a result of man's interference. This report aims to warn those involved in the health system about this new threat, justifying detailed research of the area to evaluate the magnitude of this emerging public health issue. PMID:24145156

  9. Near field receiving water monitoring of trace metals in clams (macoma balthica) and sediments near the Palo Alto Water Quality Control Plant in South San Francisco Bay, California: 1999-2001

    USGS Publications Warehouse

    David, Carlos Primo C.; Luoma, Samuel N.; Brown, Cynthia L.; Cain, Daniel J.; Hornberger, Michelle I.; Lavigne, Irene R.

    2002-01-01

    This report presents trace element concentrations analyzed on samples of fine-grained sediments and clams (Macoma balthica) collected from a mudflat one kilometer south of the discharge of the Palo Alto Regional Water Quality Control Plant in South San Francisco Bay. This report serves as a continuation of the Near Field Receiving Water Monitoring Study which was started in 1994. The data for 1999-2001 are interpreted within that context. Generally, metal concentrations in both sediments and clam tissue samples have been within the range of values produced by seasonal variability. Copper and zinc, however, display a continued decrease, recording the lowest winter maxima concentrations in both sediment and tissue samples in 2001. Yearly average of bioavailable copper, zinc and silver concentrations in 1999-2001 are some of the lowest recorded since monitoring began in 1975. A slight increase in mercury in sediments and selenium in tissue in early 2001 are also observed. These enrichments are believed to be mainly caused by hydrogeologic processes affecting the area although only continued sampling will confirm whether anthropogenic sources influence the concentrations of these elements.

  10. Briófitos del alto valle del Ter

    Microsoft Academic Search

    Francisco Lloret

    1989-01-01

    Bryophytes of the upper valley of the Ter river (NE Spain). A catalogue of 382 bryophy- tic taxa (297 mosses and 85 hepatics) found in the upper valley of the Ter river (Eastern Pyrenees, Girona, Spain) is given. Some of the most interesting species are Bryoerythrophyllum inaequali- folium, Tortula sinensis, Tortula fragilis, Oncophorus wahlenbergii and Cynodontium graciles- cens.

  11. Bike/ped bridge To Palo Alto

    E-print Network

    Services (P&TS) 3145 3170 3165 1050 1070 3375 3431 VA Medical Center 3330 Montag Hall Stock Farm lot CAMINO REAL ELCAM INO REAL EL CAMINO REAL GALVEZSTSERRA MALL CAM PUSDREAST SERRA ST CAMPUSDRIVEWEST

  12. Bike/ped bridge To Palo Alto

    E-print Network

    Services (P&TS) 3145 3170 3165 1050 1070 3375 3431 VA Medical Center 3330 Montag Hall Stock Farm lot PETE R COU TTSCI R EL CAMINO REAL ELCAM INO REAL EL CAMINO REAL GALVEZST SERRA MALL CAM PUSDREAST SERRA

  13. Near-Field Receiving Water Monitoring of Trace Metals and a Benthic Community Near the Palo Alto Regional Water Quality Control Plant in South San Francisco Bay, California: 2008

    USGS Publications Warehouse

    Cain, Daniel J.; Thompson, Janet K.; Dyke, Jessica L.; Parchaso, Francis; Luoma, Samuel N.; Hornberger, Michelle I.

    2009-01-01

    Results reported herein include trace element concentrations in sediment and in the clam Macoma petalum (formerly reported as Macoma balthica (Cohen and Carlton, 1995)), clam reproductive activity, and benthic macroinvertebrate community structure for a mudflat one kilometer south of the discharge of the Palo Alto Regional Water Quality Control Plant (PARWQCP) in South San Francisco Bay. This report includes data collected for the period January 2008 to December 2008 and extends a critical long-term biogeochemical record dating back to 1974. These data serve as the basis for the City of Palo Alto's Near-Field Receiving Water Monitoring Program, initiated in 1994. In 2008, metal concentrations in both sediments and clam tissue were among the lowest concentrations on record and consistent with results observed since 1991. Following significant reductions in the late 1980's, silver (Ag) and copper (Cu) concentrations appeared to have stabilized. Annual mean concentrations have fluctuated modestly (2-4 fold) in a nondirectional manner. Data for other metals, including chromium, mercury, nickel, selenium, vanadium, and zinc, have been collected since 1994. Over this period, concentrations of these elements, which more likely reflect regional inputs and systemwide processes, have remained relatively constant, aside from typical seasonal variation that is common to all elements. Within years, concentrations generally reach maximum in winter months (January-March) and decline to annual minima in spring through fall. Mercury (Hg) in sediments spiked to the highest observed level in January 2008. However, sedimentary concentrations for the rest of the year and concentrations of Hg in M. petalum for the entire year were consistent with data from previous years. Average selenium (Se) concentrations in sediment were the highest on record, but there is no evidence, yet, to suggest a temporal trend of increasing sedimentary Se. Selenium in M. petalum was not elevated relative to past years. Overall, Cu and Ag concentrations in sediments and soft tissues of the clam, M. petalum, remained representative of the concentrations observed since 1991 following significant reductions in the discharge of these elements from PARWQCP, suggesting that, similar to other elements of regulatory interest, regional scale factors now largely influence sedimentary and bioavailable concentrations of Cu and Ag. Analyses of the benthic-community structure of a mudflat in South San Francisco Bay over a 31-year period show that changes in the community have occurred concurrent with reduced concentrations of metals in the sediment and in the tissues of the biosentinel clam, M. petalum, from the same area. Analysis of the reproductive activity of M. petalum shows increases in reproductive activity concurrent with the decline in metal concentrations in the tissues of this organism. Reproductive activity is presently stable, with almost all animals initiating reproduction in the fall and spawning the following spring of most years. The community has shifted from being dominated by several opportunistic species to a community where the species are more similar in abundance, a pattern that suggests a more stable community that is subjected to less stress. In addition, two of the opportunistic species (Ampelisca abdita and Streblospio benedicti) that brood their young and live on the surface of the sediment in tubes, have shown a continual decline in dominance coincident with the decline in metals. Heteromastus filiformis, a subsurface polychaete worm that lives in the sediment, consumes sediment and organic particles residing in the sediment, and reproduces by laying their eggs on or in the sediment, has shown a concurrent increase in dominance and is now showing signs of population stability. An unidentified disturbance occurred on the mudflat in early 2008 that resulted in the loss of the benthic animals, except for those deep dwelling animals like Macoma petalum.

  14. Near-field receiving water monitoring of trace metals and a benthic community near the Palo Alto Regional Water Quality Control Plant in south San Francisco Bay, California; 2009

    USGS Publications Warehouse

    Dyke, Jessica L.; Parchaso, Janet K.; Thompson, Janet K.; Cain, Daniel J.; Luoma, Samuel N.; Hornberger, Michelle I.

    2010-01-01

    Results reported herein include trace element concentrations in sediment and in the clam Macoma petalum (formerly reported as Macoma balthica (Cohen and Carlton, 1995)), clam reproductive activity, and benthic macroinvertebrate community structure for a mudflat one kilometer south of the discharge of the Palo Alto Regional Water Quality Control Plant (PARWQCP) in South San Francisco Bay. This report includes data collected for the period January 2009 to December 2009 and extends a critical long-term biogeochemical record dating back to 1974. These data serve as the basis for the City of Palo Alto's Near-Field Receiving Water Monitoring Program, initiated in 1994. In 2009, metal concentrations in both sediments and clam tissue were among the lowest concentrations on record and consistent with results observed since 1991. Following significant reductions in the late 1980s, silver (Ag) and copper (Cu) concentrations appeared to have stabilized. Annual mean concentrations have fluctuated modestly (2-4 fold) in a nondirectional manner. Data for other metals, including chromium, mercury, nickel, selenium, vanadium, and zinc, have been collected since 1994. Over this period, concentrations of these elements, which more likely reflect regional inputs and systemwide processes, have remained relatively constant, aside from typical seasonal variation that is common to all elements. Within years, the winter months (January-March) generally exhibit maximum concentrations, with a decline to annual minima in spring through fall. Mercury (Hg) in sediments and M. petalum were comparable to concentrations observed in 2008 and were generally consistent with data from previous years. Selenium (Se) concentrations in sediment varied among years and showed no sustained temporal trend. In 2009, sedimentary Se concentrations declined from the record high concentrations observed in 2008 to concentrations that were among the lowest on record. Selenium in M. petalum was unchanged from 2008. Overall, Cu and Ag concentrations in sediments and soft tissues of the clam, M. petalum, remained representative of the concentrations observed since 1991 following significant reductions in the discharge of these elements from the PARWQCP. This suggests that, as with other elements of regulatory interest, regional-scale factors now largely influence sedimentary and bioavailable concentrations of Ag and Cu. Analyses of the benthic community structure of a mudflat in South San Francisco Bay over a 36-year period show that changes in the community have occurred concurrent with reduced concentrations of metals in the sediment and in the tissues of the biosentinel clam, M. petalum, from the same area. Analysis of the reproductive activity of M. petalum shows increases in reproductive activity concurrent with the decline in metal concentrations in the tissues of this organism. Reproductive activity is presently stable, with almost all animals initiating reproduction in the fall and spawning the following spring of most years. The community has shifted from being dominated by several opportunistic species to a community where the species are more similar in abundance, a pattern that suggests a more stable community that is subjected to fewer stressors. In addition, two of the opportunistic species (Ampelisca abdita and Streblospio benedicti) that brood their young and live on the surface of the sediment in tubes have shown a continual decline in dominance coincident with the decline in metals; both species had short-lived rebounds in abundance in 2008 and 2009. Heteromastus filiformis (a subsurface polychaete worm that lives in the sediment, consumes sediment and organic particles residing in the sediment, and reproduces by laying its eggs on or in the sediment) showed a concurrent increase in dominance, with the last several years prior to 2008 showing a stable population. An unidentified disturbance occurred on the mudflat in early 2008 that resulted in the loss o

  15. Near-Field Receiving Water Monitoring of Trace Metals and a Benthic Community Near the Palo Alto Regional Water Quality Control Plant in South San Francisco Bay, California: 2006

    USGS Publications Warehouse

    Lorenzi, Allison H.; Cain, Daniel J.; Parchaso, Francis; Thompson, Janet K.; Luoma, Samuel N.; Hornberger, Michelle I.; Dyke, Jessica L.; Cervantes, Raul; Shouse, Michelle K.

    2007-01-01

    Results reported herein include trace element concentrations in sediment and in the clam Macoma petalum (formerly reported as Macoma balthica (Cohen and Carlton 1995)), clam reproductive activity, and benthic macroinvertebrate community structure for a mudflat one kilometer south of the discharge of the Palo Alto Regional Water Quality Control Plant in South San Francisco Bay. This report includes data collected for the period January 2006 to December 2006, and extends a critical long-term biogeochemical record dating back to 1974. These data serve as the basis for the City of Palo Alto's Near-Field Receiving Water Monitoring Program, initiated in 1994. Metal concentrations in both sediments and clam tissue during 2006 were consistent with results observed since 1990. Most notably, copper and silver concentrations in sediment and clam tissue increased in the last year but the values remain well within range of past data. Other metals such as chromium, nickel, vanadium, and zinc remained relatively constant throughout the year except for maximum values generally occurring in winter months (January-March). Mercury levels in sediment and clam tissue were some of the lowest seen on record. Conversely, selenium concentrations reached a maximum level but soon returned to baseline levels. In all, metal concentrations in sediments and tissue remain within past findings. There are no obvious directional trends (increasing or decreasing). Analyses of the benthic-community structure of a mudflat in South San Francisco Bay over a 31-year period show that changes in the community have occurred concurrent with reduced concentrations of metals in the sediment and in the tissues of the biosentinel clam M. petalum from the same area. Analysis of the reproductive activity of M. petalum shows increases in reproductive activity concurrent with the decline in metal concentrations in the tissues of this organism. Reproductive activity is presently stable, with almost all animals initiating reproduction in the fall and spawning the following spring of most years. The community has shifted from being dominated by several opportunistic species to a community where the species are more similar in abundance, a pattern that suggests a more stable community that is subjected to less stress. In addition, two of the opportunistic species (Ampelisca abdita and Streblospio benedicti) that brood their young and live on the surface of the sediment in tubes, have shown a continual decline in dominance coincident with the decline in metals. Heteromastus filiformis, a subsurface polychaete worm that lives in the sediment, consumes sediment and organic particles residing in the sediment, and reproduces by laying their eggs on or in the sediment, has shown a concurrent increase in dominance. These changes in species dominance reflect a change in the community from one dominated by surface dwelling, brooding species to one with species with varying life history characteristics. For the first time since its invasion in 1986, the non-indigenous filter-feeding clam Corbula (Potamocorbula) amurensis has shown up in small, but persistent, numbers in the benthic community.

  16. Detection of Rickettsia parkeri from within Piura, Peru, and the First Reported Presence of Candidatus Rickettsia andeanae in the Tick Rhipicephalus sanguineus

    PubMed Central

    Flores-Mendoza, Carmen; Florin, David; Felices, Vidal; Pozo, Edwar J.; Graf, Paul C.F.; Richards, Allen L.

    2013-01-01

    Abstract Domestic farm animals (n=145) were sampled for the presence of ectoparasites in northwestern Peru during March, 2008. Ninety domestic animals (62%) were positive for the presence of an ectoparasite(s) and produced a total collection of the following: 728 ticks [Amblyomma maculatum, Anocentor nitens, Rhipicephalus (Boophilus) microplus, Rhipicephalus sanguineus, and Otobius megnini], 12 lice (Haematopinus suis), and 3 fleas (Ctenocephalides felis). A Rickettsia genus-specific qPCR assay was performed on nucleic acid preparations of the collected ectoparasites that resulted in 5% (37/743, 35 ticks and 2 fleas) of the ectoparasites positive for the presence of Rickettsia. DNA from the positive individual ticks was tested with 2 other qPCR assays for the presence of the ompB gene in Candidatus Rickettsia andeanae or Rickettsia parkeri. Candidatus R. andeanae was found in 25 A. maculatum ticks and in two Rh. sanguineus ticks, whereas R. parkeri was detected in 6 A. maculatum ticks. Two A. maculatum were co-infected with both Candidatus R. andeanae and R. parkeri. Rickettsia felis was detected in 2 fleas, Ctenocephalides felis, by multilocus sequence typing of the 17-kD antigen and ompA genes. These findings expand the geographic range of R. parkeri to include Peru as well as expand the natural arthropod vector of Candidatus R. andeanae to include Rhipicephalus sanguineus. PMID:23488453

  17. Trabajo Investigacin Es la Conexin Itaip Alto Jahuel una locura?

    E-print Network

    Rudnick, Hugh

    .............................................................................. II.4. Relación de Itaipú con Brasil.1. Precio de la energía en Brasil............................................................ III.2

  18. 901 San Antonio Road Palo Alto, CA 94303 USA

    E-print Network

    Fischer, Charles N.

    and other countries. Products bearing SPARC trademarks are based upon an architecture developed by Sun­line control of aircraft, air traffic, aircraft navigation or aircraft communications; or in the design

  19. Hip Hop as Empowerment: Voices in El Alto, Bolivia

    ERIC Educational Resources Information Center

    Tarifa, Ariana

    2012-01-01

    In response to neoliberal policies that have been in place since 1985, Bolivian young people have increasingly used hip hop music as a means of protest and to reclaim social and political participation. Hip hop in Latin America tells the story of the struggles that marginalized people have suffered, and speaks to the effects of international…

  20. Chief, Medical Service VA Palo Alto Health Care System

    E-print Network

    Quake, Stephen R.

    and rehabilitation, neurology, oncology, dentistry, geriatrics, and extended care. An affiliation with the world of areas including geriatrics, mental health, Alzheimer's disease, spinal cord regeneration, schizophrenia

  1. * Corresponding author. Rehabilitation R & D Center (153), VA Palo Alto Health Care System, 3801 Miranda Avenue, Palo Alto, CA,

    E-print Network

    the crank angular velocity, and hence muscle contraction speeds, were favorable to produce muscle power as de"ned by the skeletal muscle power}velocity relationship. The results showed that our hypothesis) Journal of Biomechanics 33 (2000) 165}172 Adaptation of muscle coordination to altered task mechanics

  2. To sell or not to sell—A Pastoralist's Dilemma: A lesson from the slaughterhouse

    Microsoft Academic Search

    Avi Perevolotsky

    1986-01-01

    Marketing strategies employed by herders in Piura, a coastal region in northern Peru, are discussed in conjunction with ecological and economic factors. Data from regional slaughterhouses help in analyzing decisions concerning livestock offtakes and in understanding the rationale behind them. Piura is characterized by sharp weather changes, amplified by the El Niño phenomenon. The variations in precipitation and forage availability

  3. GEODINÁMICA DE LAS CORDILLERAS DEL ALTO Y MEDIO ATLAS: SÍNTESIS DE LOS CONOCIMIENTOS ACTUALES

    Microsoft Academic Search

    A. Teixell; P. Ayarza; E. Tesón; J. Babault; F. Alvarez-Lobato; M. Charroud; M. Julivert; L. Barbero; M. Amrhar; M. L. Arboleya

    We discuss recent developments on the geodynamics of the High and Middle Atlas of Morocco, two high-topography mountain belts developed within the African plate. The NE-trending Middle Atlas and the nearly E-trending High Atlas derived from inversion of an orthogonal and an oblique rift respectively, both essentially Jurassic in age. NNW-SSE-directed tectonic shortening is modest, decreasing from E to W

  4. STANFORD UNIVERSITY OFFICE OF TECHNOLOGY LICENSING 1705 EL CAMINO REAL, PALO ALTO CA 94306-1106

    E-print Network

    Puglisi, Joseph

    will expire before products will be on the market. Other times, it takes so long for a patent to issue government, Stanford will decline to take title and the federal government has the right to take title to the invention. Inventors may petition the government to have title revert to them personally. In this case

  5. An Improved Approach for Generating Max-Fault Min-Cardinality Diagnoses Palo Alto Research Center

    E-print Network

    de Kleer, Johan

    of the circuit consisting of G3, G4 and G6. Given I3=0, G3 drives N3=1. Given I5=0, drives N4=1. Given both inputs to the NAND gate G6 are 1, it drives its output to O2=0. Suppose O2=1 is observed. This can only be explained by at least one G1 G3 G6 G5G2 G4 I1 O1 N3 N4 N2N1 O2 I2 I3 I4 I5 Figure 1: The simplest circuit, c

  6. The Wendelstein Calar Alto Pixellensing Project (WeCAPP): The M31 Variable Star Catalogue

    E-print Network

    Juergen Fliri; Arno Riffeser; Stella Seitz; Ralf Bender

    2005-07-19

    In this paper we present the WeCAPP variable star catalogue towards the bulge of M31. The observations of the WeCAPP microlensing survey (optical R and I bands) during three years (2000-2003) result in a database with unprecedented time coverage for an extragalactic variable star study. We detect 23781 variable sources in a 16.1' x 16.6' field centered on the nucleus of M31. The catalogue of variable stars contains the positions, the periods and the variations in the R and I bands. We classify the variables according to their position in the R-band period-amplitude plane. Three groups can be distinguished; while the first two groups can be mainly associated with Cepheid-like variables (population I Cepheids in group I, type II Cepheids and RV Tauri stars in group II), the third one consists of Long Period Variables (LPVs). We detect 37 RV Tauri stars and 11 RV Tauri candidates which is one of the largest collections of this class of stars to date. The classification scheme is supported by Fourier decomposition of the light curves. Our data shows a correlation of the low-order Fourier coefficients Phi_21 with Phi_31 for classical Cepheids, as well for type II Cepheids and RV Tauri stars. Correlating our sample of variable stars with the X-ray based catalogues of Kaaret (2002) and Kong et al. (2002) results in 23 and 31 coincidences, 8 of which are M31 globular clusters. The number density of detected variables is clearly not symmetric, which has to be included in the calculations of the expected microlensing event rate towards M31. This asymmetry is due to the enhanced extinction in the spiral arms superimposed on the bulge of M31 which reduces the number of sources to about 60%, if compared to areas of equivalent bulge brightness (without enhanced extinction being present).

  7. COMPOSICIÓN Y CAPACIDAD ANTIOXIDANTE DE ESPECIES AROMÁTICAS Y MEDICINALES CON ALTO CONTENIDO DE TIMOL Y CARVACROL

    Microsoft Academic Search

    AMNER MUÑOZ ACEVEDO; MARTHA L. CASTAÑEDA; Estudiante de Química; KATERINE M. BLANCO; CAROL Y. CARDENAS; JOHAN A. REYES; VLADIMIR KOUZNETSOV; ELENA E. STASHENKO

    2007-01-01

    ABTS +. ABSTRACT. Extracts and essential oils rich in thymol and carvacrol were obtained by simultaneous distillation-solvent extraction (SDE) and microwave-assisted hydrodistillation (MWHD) from thyme, common and wild oregano, spanish oregano, and marjoram. Compound separation and identification were performed by GC-MS (EI,70 eV), based on chromatographic (Kovàts indices) and spectral (comparison with standard and database spectra) criteria. The antioxidant activity

  8. Biodiversity of Archaea and floral of two inland saltern ecosystems in the Alto Vinalopó Valley, Spain

    Microsoft Academic Search

    Basilio Zafrilla; Rosa M Martínez-Espinosa; María A Alonso; María J Bonete

    2010-01-01

    BACKGROUND: The extraction of salt from seawater by means of coastal solar salterns is a very well-described process. Moreover, the characterization of these environments from ecological, biochemical and microbiological perspectives has become a key focus for many research groups all over the world over the last 20 years. In countries such as Spain, there are several examples of coastal solar

  9. Restoration of resaca wetlands and associated wet prairie habitats at Palo Alto Battlefield National Historic Site

    E-print Network

    Margo, Michael Ray

    2006-08-16

    include Borrichia frutescens, Suaeda spp., Salicornia virginica, Batis maritima, Limonium nashii, and Monanthochloe littoralis. Several introduced grasses include Dichanthium annulatum, Dichanthium, aristatum, Pennisetum ciliare, Urochloa maxima...

  10. The ALTO Project at IPN Orsay CNRS/IN2P3/Universit Paris Sud

    E-print Network

    Paris-Sud XI, Université de

    . The technique originally proposed [3] is the use of energetic neutrons to induce fission of depleted uranium II and EURISOL projects). To get such beams, a large R&D effort is required. Uranium fission

  11. Restoration of resaca wetlands and associated wet prairie habitats at Palo Alto Battlefield National Historic Site 

    E-print Network

    Margo, Michael Ray

    2006-08-16

    include Borrichia frutescens, Suaeda spp., Salicornia virginica, Batis maritima, Limonium nashii, and Monanthochloe littoralis. Several introduced grasses include Dichanthium annulatum, Dichanthium, aristatum, Pennisetum ciliare, Urochloa maxima...

  12. Guanaco traces and hunting strategies at Alto Patache North Chilean fog oasis

    Microsoft Academic Search

    H. Larrain; P. Cereceda; L. Pérez

    2010-01-01

    1. In foregoing Fog Conferences, some of us have made explicit the rich botanic and faunistic inventory to be found at this Chilean Fog site. This was specially apparent under strong ENSO conditions, as it happened in 1997\\/98 in the area. Among the mammal biggest species represented, the guanaco (Lama guanicoe Müller) merits special mention. Clear traces of their presence

  13. STANFORD UNIVERSITY OFFICE OF TECHNOLOGY LICENSING 1705 EL CAMINO REAL PALO ALTO CA 94306-1106

    E-print Network

    Kay, Mark A.

    examples of student-founded companies that licensed technology from Stanford. The Jaipur knee invention outSTANFORD UNIVERSITY · OFFICE OF TECHNOLOGY LICENSING to faculty, students and the Office of Technology Licensing (OTL) for inventions developed as a result

  14. Costs of producing fruit in Alto Valle Del Rio Negro, Argentina 

    E-print Network

    Bongiorno, Aldo

    1970-01-01

    by size of farm. Particular attention was given to the determination of relationships between labor and capital. All ma]or cost groups decreased as farm size increased when costs were considered on a per hectare basis. Differences in costs by size... of mechanization was studied for each size. Obtaining a picture of labor and. ma bine costs associated with various machine combinations. The resul ing cost-size curves showed decreasing costs throughout their entire ranges as farm size increased, indicating...

  15. GERBERTVS una nuova rivista per l'astronomia e la scienza nell'alto medioevo

    NASA Astrophysics Data System (ADS)

    Sigismondi, C.

    GERBERTVS appears as an international e-journal on medieval science, namely astronomy. It has been created to gather all the studia promoted on Gerbert of Aurillac, the most prominent figure of the tenth century: astronomer, organ builder and music theoretician, mathematician, philosopher, and finally pope with the name of Silvester II (999-1003). Here is presented the first volume (2010) published in the institutional web site www.icra.it/gerbertus with the ISSN 2038-355X.

  16. BY M. MITCHELL WALDROP n the foothills above Palo Alto, California, physicists have set up

    E-print Network

    Uppsala Universitet

    of magnets that forces them into a violent zigzag. They respond with a blast of X-rays so fierce it could or materials at the atomic scale -- roughly 0.1 nanometres, or 1 ångström. But getting images from X

  17. 7 CFR 319.56-41 - Citrus from Peru.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ...c) Approved growing areas. The fruit must be grown in one of the following approved citrus-producing zones: Zone I, Piura; Zone II, Lambayeque; Zone III, Lima; Zone IV, Ica; and Zone V, Junin. (d) Grower registration and...

  18. 7 CFR 319.56-41 - Citrus from Peru.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ...c) Approved growing areas. The fruit must be grown in one of the following approved citrus-producing zones: Zone I, Piura; Zone II, Lambayeque; Zone III, Lima; Zone IV, Ica; and Zone V, Junin. (d) Grower registration and...

  19. Las macrófitas de algunos lagos alto-andinos del Ecuador y su bajo potencial como bioindicadores de eutrofización

    Microsoft Academic Search

    Benjamin Kiersch; Ralf Mühleck; Günter Gunkel

    Macrophytes from some high Andean lakes of Ecuador and their low potential as bioindica- tors of eutrophication. The occurrence of macrophyte in three high Andean lakes of Ecuador, Lago San Pablo, Laguna La Mica and Lago Cuicocha was recorded in 5-9 transects per lake. The first two lakes are eutrophic, the third is an extremely oligotrophic caldera lake. The dominant

  20. 3430 West Bayshore Road Palo Alto CA 94303 *Telephone: 650.849.1550 Fax: 650.320.8753

    E-print Network

    Allen, Jont

    called the EarPrint TM . Current testing is encouraging but still there is room for improvement. One for improvement is the uniformity of the sound field presented. By design, the EarPrint is created using a multi cause significant variation in sound level. As an example, moving the head + or ­1'' causes 2­3d

  1. ICAIL 2007 Workshop, June 4, 2007, Palo Alto, California Supporting Search and Sensemaking for Electronically Stored Information

    E-print Network

    Oard, Doug

    and investigatory contexts. In recognition of this phenomenon, as of December 1, 2006, the U.S. Federal Rules Conference (TREC), consisting of a multi- year collaborative information retrieval research project focused

  2. CARACTERIZACION DE UN RESIDUO CON ALTO CONTENIDO DE ALUMINIO CHARACTERIZATION OF A RESIDUE WITH HIGH ALUMINUM CONTENT

    Microsoft Academic Search

    R. Contreras-Bustos; J. R. Rosas-Cedillo; A. J. Ruiz-García

    A residue from the chemical washing process of aluminum was characterized by different techniques in order to envisage different re-utilization schemes. The residue was composed mainly by gibbsite and boehmite in lower amounts. The chemical analyses reported 32.65 % aluminum and sodium and magnesium as impurities (0.38 and 0.17 % respectively). The powder grain size was around 10 µm. Changes

  3. AIAA Applied Aerodynamics Conference, 10th, Palo Alto, CA, June 22-24, 1992, Technical Papers. Pts. 1 AND 2

    SciTech Connect

    Not Available

    1992-01-01

    Consideration is given to vortex physics and aerodynamics; supersonic/hypersonic aerodynamics; STOL/VSTOL/rotors; missile and reentry vehicle aerodynamics; CFD as applied to aircraft; unsteady aerodynamics; supersonic/hypersonic aerodynamics; low-speed/high-lift aerodynamics; airfoil/wing aerodynamics; measurement techniques; CFD-solvers/unstructured grid; airfoil/drag prediction; high angle-of-attack aerodynamics; and CFD grid methods. Particular attention is given to transonic-numerical investigation into high-angle-of-attack leading-edge vortex flow, prediction of rotor unsteady airloads using vortex filament theory, rapid synthesis for evaluating the missile maneuverability parameters, transonic calculations of wing/bodies with deflected control surfaces; the static and dynamic flow field development about a porous suction surface wing; the aircraft spoiler effects under wind shear; multipoint inverse design of an infinite cascade of airfoils, turbulence modeling for impinging jet flows; numerical investigation of tail buffet on the F-18 aircraft; the surface grid generation in a parameter space; and the flip flop nozzle extended to supersonic flows.

  4. LIDERES POLÍTICOS INDÍGENAS EN AMAZONIA: POLÍTICA Y AUTO-REPRESENTACIÓN ENTRE LOS YE'KWANA DEL ALTO ORINOCO

    Microsoft Academic Search

    Matthew Lauer

    2005-01-01

    This article examines the rise of an indigenous leader among the Ye'kwana of Southern Venezuela in order to analyze indigenous identity politics in the region. Because of extraordinary circumstances that created a municipality in the Upper Orinoco populated exclusively by indigenous people, the Ye'kwana now have the ability to elect indigenous representatives to public office. These new Ye'kwana political leaders

  5. Published by the Centrifuge Instrument Systems Development Center of Beckman Coulter, Inc., Palo Alto, California 94304 ROTORS AND TUBES

    E-print Network

    Pawlowski, Wojtek

    TM Published by the Centrifuge Instrument Systems Development Center of Beckman Coulter, Inc., Palo rotor and centrifuge manuals. Observance of safety precautions will help to avoid actions that could cause personal injury, as well as damage or adversely affect the performance of the centrifuge

  6. Published by the Centrifuge Instrument Systems Development Center of Beckman Coulter, Inc., Palo Alto, California 94304 ROTORS AND TUBES

    E-print Network

    Pawlowski, Wojtek

    Published by the Centrifuge Instrument Systems Development Center of Beckman Coulter, Inc., Palo of the solution being centrifuged. Be sure to observe the instructions in the appropriate rotor manual. · NEVER for use in the rotor being centrifuged (refer to the applicable rotor manual). The safety of rotor

  7. Published by the Centrifuge Instrument Systems Development Center of Beckman Coulter, Inc., Palo Alto, California 94304 SW 41 Ti ROTOR

    E-print Network

    Pawlowski, Wojtek

    Published by the Centrifuge Instrument Systems Development Center of Beckman Coulter, Inc., Palo if used in a centrifuge not of Beckman Coulter's manufacture or in a Beckman Coulter ultra- centrifuge or explosive vapors. Do not centrifuge such materials in nor handle or store them near the ultracentrifuge

  8. Direct Contributions to the Decay of Isoscalar Giant-Resonances in Ni-58 

    E-print Network

    Grabmayr, P.; Wagner, G. J.; Knopfle, K. T.; Riedesel, H.; Bogucki, P.; Bronson, J. D.; Lui, YW; Garg, U.; Youngblood, David H.

    1986-01-01

    233 68 300 Lerdo 86 38 124 Mapimi 13 7 20 Nazas 3 9 12 Rodeo 3 8 11 San Juan de Gpe 0 6 6 San Luis Cordero 0 2 2 San Pedro del Gallo 0 2 2 Tlahualilo 7 9 16 Coahuila 685 124 809 Fco. I Madero 27 18 45 Matamoros 58 34 91 San Pedro 50 38 89...Mapimi Tlahualilo Rodeo San Juan de G. Simon Bolivar Las DeliciasCeballos Nazas Oriente Aguanaval Torre?n Matamoros Gomez Palacio REGLAMENTED AREA OF THE ACUIFERO PRINCIPAL Principal San Luis San Pedro del Gallo Vicente Su?rez Villa Juarez Lerdo Acatita...

  9. Emergence of New Insect-Restrictive Viruses in the Amazon Region

    PubMed Central

    Silva, Sandro P.; Carvalho, Valéria L.; Vasconcelos, Janaina M.; Da Silva, Daisy E. A.; Oliveira, Layanna F.; Nunes Neto, Joaquim P.; Rodrigues, Sueli G.; Azevedo, Raimunda S. S.; Monteiro, Hamilton A. O.; Cardoso, Jedson F.; Guzman, Hilda; Tesh, Robert; Vasconcelos, Pedro F. C.; Vianez-Júnior, João L. S. G.; Martins, Lívia C.

    2015-01-01

    The complete genome was determined for 12 viruses isolated from 8 different pools of mosquitoes (Culex sp. and Psorophora ferox) collected at Brejeira farm, Canaan dos Carajas, Para state in northern Brazil. Eight of the viruses were distantly related to Piura virus, hereafter designated as Brejeira virus; the other 4 were similar to Wallerfield virus. PMID:25792052

  10. Proceedings of a National Conference on Productivity and Effectiveness in Educational Research and Development (Palo Alto, California, December 6-7, 1977).

    ERIC Educational Resources Information Center

    Research for Better Schools, Inc., Philadelphia, PA.

    Twelve papers are contained in this report. Robert M. Ranftl reports on the findings of a study to identify useful techniques for optimizing productivity. John S. Packard contrasts the spirit of inquiry and the norm of productivity, and makes recommendations for the composition of a research team. David L. Williams describes procedures to ensure…

  11. Medical, Dental & Vision Add/Drop Form Please return to: Postdoc Benefits Office, 3160 Porter Drive, Suite 250, Palo Alto, CA 94304-8443 or

    E-print Network

    Sonnenburg, Justin L.

    Medical, Dental & Vision Add/Drop Form Please return to: Postdoc Benefits Office, 3160 Porter Drive Same Add Drop Medical EPO Medical PPO Dental PPO VSP Vision Postdoctoral Scholar Add Drop Medical EPO Medical PPO Dental PPO VSP Vision Spouse Domestic Partner Son Daughter Add Drop Medical EPO Medical PPO

  12. Recommended Academic Plan for BS Degree in Nursing (NURS/GNURS for students at University Park, Altoona, Erie (Behrend), Fayette, Mont Alto and Worthington Scranton)

    E-print Network

    Lee, Dongwon

    4 NURS 420 Mental Health Nursing 4 Elective 3 NURS 400-level Elective 3 Total Credits: 13 Total 405A Nursing Care of the Adult Client with Complex Health Problems: Part A 4 NURS 405B Nursing Care of the Adult Client with Complex Health Problems: Part B 4 NURS 415 (US;IL) Community and Family Health Nursing

  13. INFRAGILIMENTO DA IDROGENO IN BOMBOLE IN ACCIAIO PER TRASPORTO GAS: STATO DELL'ARTE SULLE ATTUALI NORMATIVE E PRINCIPALI PROBLEMATICHE DI PROGETTAZIONE PER ACCIAI ALTO-RESISTENZIALI

    Microsoft Academic Search

    M. Bellingardi; P. Bortot

    Sommario L'impiego dell'idrogeno come veicolo di energia eco-compatibile per un'economia totalmente sostenibile richiede notevoli sforzi e sfide in settori che coinvolgono tutto il ciclo di vita dell'idrogeno, dalla produzione fino all'utilizzo finale. Particolari sforzi sono necessari nel campo dello stoccaggio, in quanto l'immagazzinamento di idrogeno gassoso necessita di pressioni molto più elevate di quelle tradizionalmente ed attualmente in uso con

  14. Plan estratégico de mercadeo para la cadena hortícola en el Distrito de riego del Alto Chicamocha Strategic marketing plan for the upper Chicamocha irrigation district horticulture production chain

    Microsoft Academic Search

    María Concepción Pacheco; Luis Felipe Rodríguez; Lilia Teresa Bermúdez

    The upper Chicamocha irrigation dis- trict lies in the upper Chicamocha river basin; it was constructed in 1998 to support and foment competitive fruit and vegetable production. How- ever, agricultural development has been slow as a consequence of notorious inefficiency in the mar- keting process. Regarding the great investment made in it and the expectations so generated, this district must

  15. Características agronómicas y químicas importantes en híbridos de maíz para forraje con alto valor energético Important agronomic and chemical characteristics in high energy hybrid forage corns

    Microsoft Academic Search

    Eduardo F. Contreras; Rodolfo Faz Contrerasa

    The objectives of this study were to determine agronomic and chemical characteristics for selecting high energy forage maize, and to generate equations related to forage corn energy value in La Laguna, Mexico. Experiments were carried out in 1997 and 1999. All tests were planted on humid soil and fertilized with 180-80-00 units. Plant density was 80,000 plants per hectare. Eighteen

  16. Published by the Centrifuge Instrument Systems Development Center of Beckman Coulter, Inc., Palo Alto, California 94304 SW 28.1 ROTORS

    E-print Network

    Pawlowski, Wojtek

    Published by the Centrifuge Instrument Systems Development Center of Beckman Coulter, Inc., Palo if used in a centrifuge not of Beckman Coulter's manufacture or in a Beckman Coulter ultracentrifuge are not designed for use with materials capable of developing flammable or explosive vapors. Do not centrifuge

  17. Alameda de Len No. 2 Altos Col. Centro C.P. 68 000 Oaxaca, Mxico Tel. 51 6 32 11 Ext. 0560 y 0561.

    E-print Network

    Islas, León

    . www.nacionmulticultural.unam.mx pumc.oaxaca1@gmail.com pumc.oaxaca@gmail.com FORO LULÁ MOVIMIENTOS. 0560 y 0561. www.nacionmulticultural.unam.mx pumc.oaxaca1@gmail.com pumc.oaxaca@gmail, México Tel. 51 6 32 11 Ext. 0560 y 0561. www.nacionmulticultural.unam.mx pumc.oaxaca1@gmail.com pumc.oaxaca@gmail

  18. Proceedings of IMAPS Advanced Technology Workshop on Thermal Management, Oct. 25-27, Palo Alto, CA, 2004 LEAKAGE AND VARIATION AWARE THERMAL

    E-print Network

    CMOS ICs and then analyze its implications for thermal management issues including packaging, 2004 LEAKAGE AND VARIATION AWARE THERMAL MANAGEMENT OF NANOMETER SCALE ICS Kaustav Banerjee, Sheng nanometer scale high-performance ICs. First, a framework to accurately estimate subthreshold leakage under

  19. Near-field receiving water monitoring of a benthic community near the Palo Alto Water Quality Control Plant in south San Francisco Bay: February 1974 through December 2003

    USGS Publications Warehouse

    Shouse, Michelle K.; Parchaso, Francis; Thompson, Janet K.

    2004-01-01

    Analyses of the benthic community structure of a mudflat in South San Francisco Bay over a 29-year period show that changes in the community have occurred concurrent with reduced concentrations of metals in the sediment and in the tissues of the biosentinal clam Macoma balthica from the same area. The community has shifted from being dominated by several opportunistic species to a community where the species are more similar in abundance, a pattern that could be indicative of a more stable community that is subjected to less stress. In addition, two of the opportunistic species (Ampelisca abdita and Streblospio benedicti) that brood their young and live on the surface of the sediment in tubes have shown a continual decline in dominance coincident with the decline in metals. Heteromastus filiformis, a subsurface polychaete worm that lives in the sediment, consumes sediment and organic particles residing in the sediment, and reproduces by laying their eggs on or in the sediment has shown a concurrent increase in dominance. These changes in species dominance reflect a change in the community from one dominated by surface dwelling, brooding species to one with species with varying life history characteristics. Analysis of the reproductive activity of Macoma balthica shows increases in reproductive activity concurrent with the decline in metal concentrations in the tissue of this organism. Reproductive activity is presently stable with almost all animals reproducing during the two reproductive seasons (spring and fall) of most years. These findings are consistent with findings previously reported for the 1974 through 2002 period.

  20. Near-field receiving water monitoring of a benthic community near the Palo Alto Water Quality Control Plant in South San Francisco Bay: February 1974 through December 2002

    USGS Publications Warehouse

    Shouse, Michelle K.; Parchaso, Francis; Thompson, Janet K.

    2003-01-01

    Analyses of the benthic community structure over a 28-year period show that changes in the community have occurred concurrent with reduced concentrations of metals in the sediment and in the tissues of the biosentinal clam Macoma balthica from the same area. The community has shifted from being dominated by several opportunistic species to a community where the species are more similar in abundance, a pattern that could be indicative of a more stable community that is subjected to less stress. In addition, two of the opportunistic species (Ampelisca abdita and Streblospio benedicti) that brood their young and live on the surface of the sediment in tubes have shown a continual decline in dominance coincident with the decline in metals. Heteromastus filiformis, a subsurface polychaete worm that lives in the sediment, consumes sediment and organic particles residing in the sediment, and reproduces by laying their eggs on or in the sediment has shown a concurrent increase in dominance. These changes in species dominance reflect a change in the community from one dominated by surface dwelling, brooding species to one with species with varying life history characteristics. Analysis of the reproductive activity of Macoma balthica shows increases in reproductive activity concurrent with the decline in metal concentrations in the tissue of this organism. Reproductive activity is presently stable with almost all animals reproducing during the two reproductive seasons (spring and fall) of most years. These findings are consistent with findings previously reported for the 1974 through 2000 period

  1. Near field receiving water monitoring of benthic community near the Palo Alto Water Quality Control Plant in south San Francisco Bay : February 1974 through December 2000

    USGS Publications Warehouse

    Thompson, Janet K.; Parchaso, Francis; Shouse, Michelle K.

    2002-01-01

    Analyses of the benthic community structure over a 26-year period show that changes in the community have occurred concurrent with reduced concentrations of metals in the sediment and in the tissues of the biosentinal clam Macoma balthica from the same area. The community has shifted from being dominated by several opportunistic species to a community where the species are more similar in abundance, a pattern that could be indicative of a more stable community that is subjected to less stress. In addition, two of the opportunistic species (Ampelisca abdita and Streblospio benedicti) that brood their young and live on the surface of the sediment in tubes have shown a continual decline in dominance coincident with the decline in metals. Heteromastus filiformis, a subsurface polychaete worm that lives in the sediment, consumes sediment and organic particles residing in the sediment, and reproduces by laying their eggs on or in the sediment has shown a concurrent increase in dominance. These changes in species dominance reflect a change in the community from one dominated by surface dwelling, brooding species to one with species with varying life history characteristics. Analysis of the reproductive activity of Macoma balthica shows increases in reproductive activity concurrent with the decline in metal concentrations in the tissue of this organism. Reproductive activity is presently stable with almost all animals reproducing during the two reproductive seasons (spring and fall) of most years.

  2. ESTRUCTURA Y COMPOSICIÓN DE LA COMUNIDAD DE MACRO INVERTEBRADOS ACUÁTICOS ASOCIADOS A TILLANDSIA TURNERI BAKER (BROMELIACEAE) EN UN BOSQUE ALTO ANDINO COLOMBIANO

    Microsoft Academic Search

    Fabiola OSPINA-BAUTISTA; Jaime V. ESTÉVEZ-VARÓN; JULIO BETANCUR; Emilio REALPE-REBOLLEDO

    We studied the acuatic macro invertebrates community associated with the water tank of Tillandsia turneri (Bromeliaceae) in a montane cloud forest (at 3000 m altitude) of Cundinamarca, Colombia. Thirty seven plants were sampled for which the amount of water and some morphological and physicochemical variables were also determined. Twenty eight of macro invertebrates morphospecies were found, 20 of which were

  3. Tree establishment along an ENSO experimental gradient in the Atacama desert

    Microsoft Academic Search

    Francisco A. Squeo; Milena Holmgren; L. Jimenez; L. Alban; José Reyes; J. R. Gutierrez

    2007-01-01

    Questions: (1) What are the roles of regional climate and plant growth rate for seedling establishment during ENSO rainy pulses along the western coast of South America? (2) What is the water threshold for tree seedling establishment in these arid ecosystems? Location: Atacama Desert, western South America: Piura (5°10' S, 80°37' W), Mejia (17°00' S, 71°59' W), Fray Jorge (30°41'

  4. REPERCUSSÕES BIOMECÂNICAS DO USO DE SALTO ALTO NA CINEMÁTICA DA MARCHA: UM ESTUDO RETROSPECTIVO DE 1990 A 2007 Biomechanical repercussions of the use of high heels in the kinematics of the march: a retrospective study from 1990 to 2007

    Microsoft Academic Search

    Cleber Luz Santos; Diana Oliveira Noronha; Cleber Araújo Gomes; Paula Roquetti Fernandes; José Fernandes Filho

    The purpose of this study was to investigate the biomechanical repercussions of the use of high heels in march kinematics, considering diverse heights and shoe models. A revision of literature was realized with articles published between January, 1990 and December, 2007 using the databases BIREME, MEDLINE, LlLACS. Heels superior to 3 centimeters generate repercussions in the locomotive device, mainly in

  5. «Amigos con derecho a roce»: una oportunidad para contraer la infección por el virus de la inmunodeficiencia humana en hombres homo\\/bixesuales con prácticas sexuales de alto riesgo

    Microsoft Academic Search

    Percy Fernández-Dávila

    2007-01-01

    ObjectiveDespite prevention efforts, the prevalence of unprotected anal intercourse (UAI) remains substantial among men who have sex with men (MSM). This study describes and analyzes how a group of MSM manages sexual risk with sexual partners.

  6. Proc. of the 13th IEEE Symp. on High-Performance Interconnects (Hot Interconnects 2005), Palo Alto, CA, August 2005. Also available as Los Alamos technical report LA-UR-05-2635.

    E-print Network

    Balaji, Pavan

    , even though the end-to-end through- put and latency of Gigabit Ethernet (GigE) lags exotic high- speed Characterization of a 10-Gigabit Ethernet TOE W. Feng P. Balaji C. Baron§ L. N. Bhuyan§ D. K. Panda Advanced Though traditional Ethernet based network architectures such as Gigabit Ethernet have suffered from

  7. Tectonic evolution from the Hercynian shortening to the Triassic extension in the Paleozoic sediments of the Western High Atlas (Morocco) Evolución tectónica desde el acortamiento hercínico hasta la extensión triásica de los sedimentos paleozoicos del Alto Atlas Occidental (Marruecos)

    Microsoft Academic Search

    H. Saber; M. El Wartiti; D. Hmich; J. W. Schneider

    In the Upper Palaeozoic (Stephanian to Upper Permian) sediments of the Western High Atlas, ancient faults trending N20°-40°, N70°-80°, E-W to N110°-120° and N160°, that is, of hercynian age, present normal, sinistral strike-slip or thrust displacements and sometimes with important throw. They were active from Stephanian (Late Carboniferous) to Late Permian times. The new biostrati- graphic and chronostratigraphical data allow

  8. COMMISSIONING OF THE ALTO 50 MEV ELECTRON LINAC J. Lesrel, J. Arianer, M. Arianer, O. Bajeat, J-M. Buhour, H. Bzyl, F. Carrey, M. Chabot, J.-L.

    E-print Network

    Paris-Sud XI, Université de

    induced by gamma [1]. This has stimulated us to build a new experimental area at Orsay, equipped) and LAL test station. Irradiating a uranium carbide target (238 UCx) at high temperature with a 10 µ loading in the accelerating section, we choose to function at maximum pulse length. With 3 Proceedings

  9. Near-field receiving water monitoring of trace metals and a benthic community near the Palo Alto Regional Water Quality Control Plant in South San Francisco Bay, California-2010

    USGS Publications Warehouse

    Dyke, Jessica L.; Parchaso, Francis; Thompson, Janet K.; Cain, Daniel J.; Luoma, Samuel N.; Hornberger, Michelle I.

    2011-01-01

    Analyses of the benthic community structure of a mudflat in South San Francisco Bay over a 37-year period show that changes in the community have occurred concurrent with reduced concentrations of metals in the sediment and in the tissues of the biosentinel clam, M. petalum, from the same area. Analysis of the M. petalum community shows increases in reproductive activity concurrent with the decline in metal concentrations in the tissues of this organism. Reproductive activity is presently stable (2010), with almost all animals initiating reproduction in the fall and spawning the following spring of most years. The community has shifted from being dominated by several opportunistic species to a community where the species are more similar in abundance, a pattern that indicates a more stable community that is subjected to fewer stressors. In addition, two of the opportunistic species (Ampelisca abdita and Streblospio benedicti) that brood their young and live on the surface of the sediment in tubes have shown a continual decline in dominance coincident with the decline in metals; both species had short-lived rebounds in abundance in 2008, 2009, and 2010. Heteromastus filiformis (a subsurface polychaete worm that lives in the sediment, consumes sediment and organic particles residing in the

  10. Teaching internationally: Texas A&M professor travels the world teaching water resources engineering 

    E-print Network

    Wythe, Kathy

    2008-01-01

    and government agencies in Spain, Portugal, Finland, Morocco, Brazil, and Peru. Although he tailors each course to the needs of the audience, Olivera said all the courses involve his research of using GIS to study such topics as quantifying the effects... of insufficient funds, 25 years later the school invited him to teach there. ?Teaching at CEDEX was a very rewarding experience,? he said. In fall 2007, he traveled to South America to teach courses in Brazil and Peru. The course in Piura, Peru, was a one...

  11. Sell or not to sell - a pastoralist's dilemma: a lesson from the slaughterhouse

    SciTech Connect

    Perevolotsky, A.

    1986-09-01

    Marketing strategies employed by herders in Piura, a coastal region in northern Peru, are discussed in conjunction with ecological and economic factors. Data from regional slaughterhouses' help in analyzing decisions concerning livestock offtakes and in understanding the rationale behind them. Piura is characterized by sharp weather changes, amplified by the El Nino phenomenon. The variations in precipitation and forage availability strongly affect production, structure, and dynamics of the herds and are therefore a significant component in determining the actual marketing decision strategy. Pure herders adopt an insurance strategy emphasizing a build-up of herds during abundant years in order to compensate for considerable losses caused by frequent droughts. The use of stubble and concentrated feed in coping with droughts is restricted by economic and social factors. Agropastoralists are affected not only by ecological factors but also by labor availability, agricultural cash requirements, and household needs. As a result, these goat keepers practice a capital-manipulation strategy in which goats and kids are used as a form of capital. The paper provides an empirical representation of these two marketing strategies based on slaughterhouses' records and a complementary field survey.

  12. Community Academic Profile Stephen Ezeji-Okoye, MD

    E-print Network

    Ford, James

    Stanford Hospital 4/2000 ­ 1/2001 Acting Chief of Staff Veterans Affairs Palo Alto Health Care System, Palo ACOS for Ambulatory Care Veterans Affairs Palo Alto Health Care System, Palo Alto, CA 1997 - 2008 Deputy Chief of Staff, San Jose and Monterey Clinics Veterans Affairs Palo Alto Health Care System, Palo

  13. EFECTO DE GLUTENINAS DE ALTO PESO MOLECULAR DE LOS GENOMAS A Y B SOBRE PROPIEDADES REOLÓGICAS Y VOLUMEN DE PAN EN TRIGOS HARINEROS EFFECT OF DIFFERENT HIGH MOLECULAR WEIGHT GLUTENIN ALLELES OF A AND B GENOMES OF BREAD WHEAT ON RHEOLOGICAL PROPERTIES AND BREAD VOLUME OF BREAD WHEAT

    Microsoft Academic Search

    Eliel Martínez-Cruz; Eduardo Espitia-Rangel; Ignacio Benítez-Riquelme; Roberto J. Peña-Bautista; Amalio Santacruz-Varela; Héctor E. Villaseñor-Mir; Programa de Trigo

    To determine the influence of specific subunits of the A and B genomes of high molecular weight glutenins (G-APM) on the elasticity and extensibility of dough gluten and bread volume of bread wheat (Triticum aestivum L.), we tested a group of 98 lines, F2 to F6, obtained from the cross Rebeca F2000× × × × ×Baviacora M92 derived from descendents

  14. Notes on human cases of cystic echinococcosis in Peru.

    PubMed

    Romani, Elizabeth Luz Sanchez; Rodrigues-Silva, Rosângela; Maldonado, Arnaldo; Machado-Silva, José Roberto; Gomes, Delir Corrêa

    2006-05-01

    Cystic echinococcosis (CE) is a high prevalent zoonosis in the central and southern Peruvian Andes. Serum samples (n50)from patients presenting presumptive clinical and radiological diagnosis of CE (group 1), were tested for antibodies against Echinococcus granulosus metacestode using Arc-5 double diffusion assay (DD5), immunoelectrophoresis (IEF), and immunoelectrotransfer blot (EITB) techniques. Serum samples (n18) from patients presenting other parasite infections (paragonomiasis, cysticercosis, and fascioliasis) or healthy blood donors (n15), were designated as control groups. The overall sensitivity of the tests was of 94% (DD5 and IEF tests) or 96% (EITB test). Only patients from group 1 were seropositive for CE. Polypeptides of 21, 31, and 48 kDa were considered positive for CE. Based on these results, this study demonstrates that CE also occurs in other coastal departments (Piura, Ancash, Ica, Arequipa, and Tacna) besides Lima. PMID:16862333

  15. [Experiences in the prevention and control of Carrión's disease in Peru].

    PubMed

    Maguiña Vargas, Ciro; Pachas, Paul

    2014-04-01

    Carrion's disease, the iconic disease in Peruvian medicine has been found in the mountains of Ecuador, Colombia and the Andean valleys of Peru. In the 1990s, the phenomenon of El Niño was associated with significantly increased risk of disease in Ancash, Cajamarca and Cusco. In Cusco in 1998 there was an acute phase epidemic in various Andean provinces and the jungle area. Between 2001 and 2005 the disease has spread or reactivated in different regions such as Ancash, Cajamarca, Amazonas, Piura, Cusco, La Libertad, Puno, and Ayacucho. In 2004 a major outbreak of the disease in all of Peru was presented, reporting more than 11 164 cases, and therefore diverse strategies based vector susceptibility studies was applied, lowering significantly the number of cases. PMID:25123877

  16. Ethnomedical field study in northern Peruvian Andes with particular reference to divination practices.

    PubMed

    De Feo, Vincenzo

    2003-04-01

    The results of a field study carried out in August and September 1988, in the northern Peruvian Andes are described. The area of investigation extends from Ayabaca City (about 2900m above sea level) to Haughtiness Lagunas (about 3800m above sea level) in the Ayabaca District, Department of Piura. This is the first time that this location has been the subject of an ethnobotanical investigation. We have collected 46 plant species, belonging to 20 families, used in the treatment of various diseases. For each plant, we report the common/local names, the crude drug formulation, method of preparation, dosage and claimed toxicity. The disease concept of this Andean population concerning the "hot" and "cold" aspects of diseases and the plants to treat them, is also discussed. Very important appear to be the use and knowledge of psychoactive plants, in particular "cimoras," Brugmansia and Trichocereus species. PMID:12639748

  17. Automatic Synthesis of Both the Control Law and Parameters for a Controller for a Three-Lag Plant with Five-Second Delay using Genetic Programming and

    E-print Network

    Fernandez, Thomas

    with Five-Second Delay using Genetic Programming and Simulation Techniques John R. Koza Stanford University Programming Inc. Los Altos, California myd@cs.stanford.edu Forrest H Bennett III Genetic Programming Inc. (Currently, FX Palo Alto Laboratory, Palo Alto, California) bennett@pal.xerox.com Abstract This paper

  18. STANFORD UNIVERSITY SCHOOL OF MEDICINE DEPARTMENT OF VETERANS AFFAIRS MEDICAL CENTER

    E-print Network

    Ford, James

    Avenue Palo Alto, California 94304 CARDIOLOGY SECTION (650) 858-3932 FAX (650) 852-3473 DATE: 1 July 1999 TO: CARDIOLOGY FELLOWS SUBJECT: FELLOW RESPONSIBILITIES AT THE PALO ALTO VAMC The following memo enumerates some of the responsibilities of the Cardiology fellows as they rotate through the Palo Alto VAMC

  19. After the Coup: Four Dramatic Versions of Allende's Chile

    E-print Network

    Layera, Ramó n

    1978-10-01

    FALL 1978 39 After the Coup: Four Dramatic Versions of Allende's Chile RAMÓN LAYERA In his preface to Victor Torres' Una casa en Lota Alto (A House in Lota Alto, 1973) Augusto Boal, renowned Brazilian director, playwright and drama... plays written by Chilean playwrights about the Allende years illustrate the paradox inherent in Augusto Boal's proposition.1 Victor Torres' Una casa en Lota Alto, Sergio Vodanovic's Igual que antes {Same As Ever, 1972-73), Jorge Díaz' Mear contra el...

  20. Cutaneous leishmaniasis in the Peruvian Andes: an epidemiological study of infection and immunity.

    PubMed

    Davies, C R; Llanos-Cuentas, E A; Pyke, S D; Dye, C

    1995-04-01

    A prospective longitudinal survey of cutaneous leishmaniasis (Leishmania peruviana) was carried out in Peru on a study population of 4716 persons living in 38 villages (Departments of Lima, Ancash and Piura). Demographic and clinical data were collected from all individuals, and a Montenegro skin test (MST) was carried out on 72% (3418) of the study population. Each household was revisited at 3-monthly intervals for up to 2 years to detect new leishmaniasis cases; 497 people received a second MST at the end of the study. Analysis of the epidemiological data indicated that (i) 17% (16/94) of all infections were subclinical, (ii) this percentage increased significantly with age, (iii) clinical infections led to 73.9% protective immunity (95% C.I. 53.0-85.5%) and relatively permanent MST responsiveness (recovery rate = 0.0098/year; 95% C.I. 0.000-0.020/year), (iv) sub-clinical infections led to protective immunity, which was positively correlated with their MST induration size (increasing by 17.9% per mm; P < 0.0001), and a mean MST recovery rate of 0.114/year (4/421 man-months), and (v) recurrent leishmaniasis was dominated by reactivations, not by reinfections. PMID:7705493

  1. Cocoa bean quality assessment by using hyperspectral images and fuzzy logic techniques

    NASA Astrophysics Data System (ADS)

    Soto, Juan; Granda, Guillermo; Prieto, Flavio; Ipanaque, William; Machacuay, Jorge

    2015-04-01

    Nowadays, cocoa bean exportation from Piura-Peru is having a positive international market response due to their inherent high quality. Nevertheless, when using subjective techniques for quality assessment, such as the cut test, a wastefulness of grains is generated, additional to a restriction in the selection as well as improvement approaches in earlier stages for optimizing the quality. Thus, in an attempt to standardize the internal features analyzed by the cut test, for instance, crack formation and internal color changes during the fermentation, this research is submitted as an approach which aims to make use of hyperspectral images, with the purpose of having a quick and accurate analysis. Hyperspectral cube size was reduced by using Principal Component Analysis (PCA). The image generated by principal component PC1 provides enough information to clearly distinguish the internal cracks of the cocoa bean, since the zones where these cracks are, have a negative correlation with PC1. The features taken were processed through a fuzzy block, which is able to describe the cocoa bean quality. Three membership functions were defined in the output: unfermented, partly fermented and well fermented, by using trapezoidal-shaped and triangular-shaped functions. A total of twelve rules were propounded. Furthermore, the bisector method was chosen for the defuzzification. Begin the abstract two lines below author names and addresses.

  2. Periodic and quiescent solar activity effects in the low ionosphere, using SAVNET data

    NASA Astrophysics Data System (ADS)

    Bertoni, F. C. P.; Raulin, J.-P.; Gavilan, H. R.; Kaufmann, P.; Raymundo, T. E.

    2010-10-01

    Important results have been acquired using the measurements of VLF amplitude and phase signals from the South America VLF Network (SAVNET) stations. This network is an international project coordinated by CRAAM, Brazil in cooperation with Peru and Argentina. It started operating in April 2006, and now counts on eight stations (Atibaia, Palmas, Santa Maria and Estaça~o Antártica Comandante Ferraz in Brazil; Piura, Punta-Lobos and Ica, in Peru; CASLEO, in Argentina). Researches, through the last decades, have demonstrated the versatility of the VLF technique for many scientific and technological purposes. In this work, we summarize some recent results using SAVNET data base. We have obtained daily maximum diurnal amplitude time series that exhibited behavior patterns in different time scales: 1) 1ong term variations indicating the solar activity level control of the low ionosphere; 2) characteristic periods of alternated slow and fast variations, the former being related to solar illumination conditions, and the latter that have been associated with the winter anomaly at high latitudes; 3) 27-days period related to the solar rotation and consequently associated to the solar Lyman-? radiation flux variations, reinforcing earlier theories about the importance of this spectral line for the D-region formation. Finally, we conclude presenting preliminary results of simulation using LWPC, which showed very good agreement at times of observed modal amplitude minima for a given VLF propagation path.

  3. Cutaneous leishmaniasis in the Peruvian Andes: an epidemiological study of infection and immunity.

    PubMed Central

    Davies, C. R.; Llanos-Cuentas, E. A.; Pyke, S. D.; Dye, C.

    1995-01-01

    A prospective longitudinal survey of cutaneous leishmaniasis (Leishmania peruviana) was carried out in Peru on a study population of 4716 persons living in 38 villages (Departments of Lima, Ancash and Piura). Demographic and clinical data were collected from all individuals, and a Montenegro skin test (MST) was carried out on 72% (3418) of the study population. Each household was revisited at 3-monthly intervals for up to 2 years to detect new leishmaniasis cases; 497 people received a second MST at the end of the study. Analysis of the epidemiological data indicated that (i) 17% (16/94) of all infections were subclinical, (ii) this percentage increased significantly with age, (iii) clinical infections led to 73.9% protective immunity (95% C.I. 53.0-85.5%) and relatively permanent MST responsiveness (recovery rate = 0.0098/year; 95% C.I. 0.000-0.020/year), (iv) sub-clinical infections led to protective immunity, which was positively correlated with their MST induration size (increasing by 17.9% per mm; P < 0.0001), and a mean MST recovery rate of 0.114/year (4/421 man-months), and (v) recurrent leishmaniasis was dominated by reactivations, not by reinfections. PMID:7705493

  4. Community Development Building Division

    E-print Network

    building compliance of the Los Altos Municipal Code shall alleviate any requirement to meet the State of California's Title 24 Energy Code requirements. Specifically, no building permit shall be issued to anyCommunity Development Building Division One North San Antonio Road Los Altos, California 94022

  5. J U N E 2 0 0 0 Research Report 2000/5

    E-print Network

    Flinn, Jason

    J U N E 2 0 0 0 WRL Research Report 2000/5 Quantifying the Energy Consumption of a Pocket Computer Report Distribution Compaq Western Research Laboratory 250 University Avenue Palo Alto, CA 94301 U Research Laboratory 250 University Avenue Palo Alto, California 94301 USA #12;The Western Research

  6. Automatic Synthesis of Electrical Circuits Containing a Free Variable Using Genetic Programming

    E-print Network

    Fernandez, Thomas

    Automatic Synthesis of Electrical Circuits Containing a Free Variable Using Genetic Programming. Chicago, Illinois makeane@ix.netcom.com Jessen Yu Genetic Programming Inc. Los Altos, California jyu@cs.stanford.edu William Mydlowec Genetic Programming Inc. Los Altos, California myd@cs.stanford.edu Abstract

  7. 2020 visions Forthefirstissueofthenewdecade,Natureaskedaselectionofleadingresearchersandpolicy-makerswhere

    E-print Network

    Montgomery, David R.

    Global Posi- tioning System devices, medical devices and other embedded sensors in our environment Affairs Palo Alto Health Care System, Palo Alto, California The human body is one of the most important habitats, studied and defined so far on the basis of gross anatomical features, such as the skin, mouth

  8. A simulation analysis of the combined effects of muscle strength and surgical tensioning on lateral pinch force following brachioradialis

    E-print Network

    Ottino, Julio M.

    . Elise Johanson c , Vincent R. Hentz c , Katherine R. Saul d,e , Wendy M. Murray a,b,f,g a Sensory Motor, Chicago, IL, USA c VA Palo Alto Health Care System, Palo Alto, CA, USA d Department of Biomedical. Differences in these mechanical parameters that are revealed by simulating and comparing different surgical

  9. Alexandr Andoni andoni@microsoft.com, http://www.mit.edu/~andoni

    E-print Network

    Jackson, Daniel

    of Science degree in Computer Science and Engineering, and Bachelor of Science degree in Mathematics Summer Intern (software engineer). Palo Alto Research Center, Computer Science Lab Palo Alto, CA Summer Rubinfeld. 2004­'05 Master of Engineering in Electrical Engineering and Computer Science. Thesis title

  10. MOTION CONTROL OF PLANAR OBJECTS USING LARGE-AREA ARRAYS OF MEMS-LIKE DISTRIBUTED MANIPULATORS

    E-print Network

    Fromherz, Markus P.J.

    , and paper coated with unfused toner or wet ink. In these situations, a non-contact transport method fabricated for each directed jet permits a distributed array of high bandwidth, non-contacting directional Preas, James Reich, and Lars-Erik Swartz Xerox Palo Alto Research Center Palo Alto, CA/USA June 2000

  11. CAMPUSDRIVEWEST SANTA TERESA ST

    E-print Network

    Quad Arrillaga Family Sports Center Sunken Diamond MaplesMem Aud. Alumni Center Bing Concert Hall Schwab Res.Center Hoover Tower Cantor Arts Center Green Library Knight Mgmt.Ctr. Visitor Center Y2E2 Stanford Shopping Center Downtown Palo Alto o Park Lytton Plaza Palo Alto Transit Center Packard MSOB Lucas

  12. NORTHERN CALIFORNIA METALLURGICAL SECTION

    E-print Network

    Wu, Junqiao

    , as our luncheon speaker. Dr. Thagard was a mission specialist on the June 1983 Space Shuttle mission. Roylance H-P Laboratories, Palo Alto, CA 8:40 Technology and Engineering Issues in VLSI." Dr. Arnold Processing." Dr. Josef Berger Berger Engineering, Los Altos, CA 10:20 REFRESHMENTS (California Ballroom

  13. Your article is protected by copyright and all rights are held exclusively by Springer

    E-print Network

    Gross, James J.

    of Veterans Affairs. C. A. S. Reber PGSP-Stanford Psy.D. Consortium/VA Palo Alto Health Care System, Palo Alto Investigation of Mindfulness Skills and Changes in Emotion Regulation Among Military Veterans in Posttraumatic for posttraumatic stress disor- der (PTSD). The sample consisted of 50 male veterans who were assessed

  14. Short Vitae 1 CURRICULUM VITAE

    E-print Network

    Hull, Elaine

    presented at the 2nd Annual Stanford University, Veterans Affairs Center for Health Care Evaluation and National Center for PTSD Research Assistant Conference, Veterans Affairs Palo Alto Health Care System in Innovation, Domiciliary Service, VA Palo Alto Health Care System, May 2013 GRANTS DOD Military Suicide

  15. Computer Utilization by Schools: An Example.

    ERIC Educational Resources Information Center

    Tondow, Murray

    1968-01-01

    The Educational Data Services Department of the Palo Alto Unified School District is responsible for implementing data processing needs to improve the quality of education in Palo Alto, California. Information from the schools enters the Department data library to be scanned, coded, and corrected prior to IBM 1620 computer input. Operating 17…

  16. Making UpLib Useful: Personal Document Engineering William C. Janssen, Jeff Breidenbach, Lance Good, Ashok Popat

    E-print Network

    Making UpLib Useful: Personal Document Engineering William C. Janssen, Jeff Breidenbach, Lance Good, Ashok Popat Palo Alto Research Center 3333 Coyote Hill Road Palo Alto, California, 94304 USA {janssen,jbreiden,good their existing practices. In this pa- per, we discuss changes made over the last two years of use of the Up

  17. Asymmetric Caching: Improved Network Deduplication

    E-print Network

    Sivakumar, Raghupathy

    on Smartphones: Ideal vs. Reality " , MobiSys 2012 Mobile Introduction 2 C1 C 2 C3 Rabin Fingerprinting H1 H2 H3Asymmetric Caching: Improved Network Deduplication for Mobile Devices Shruti Sanadhya,1 Raghupathy of Technology, Atlanta, GA, USA 2HP Labs, Palo Alto, CA, USA 3Xerox PARC, Palo Alto, CA, USA 1 #12;· Network

  18. Teachers' beliefs regarding the generalization of students' learning and how to support the generalization of students' learning /

    E-print Network

    Diamond, Jaime Marie

    2013-01-01

    knowledge and pupil achievement in algebra. Palo Alto, CA:knowledge and student achievement in algebra. Journal forachievement was not affected by their teachers’ level of mathematical understanding; in particular, he showed teachers’ understanding of abstract algebra (

  19. 76 FR 71443 - Enhanced-Use Lease (EUL) of Department of Veterans Affairs (VA) Real Property for the Development...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-17

    ...AGENCY: Department of Veterans Affairs. ACTION...at the VA Palo Alto Health Care System (Menlo...priority placement for homeless and/or at-risk Veterans and their families...Under Secretary for Health for applying the...

  20. Stereotactic Radiation Therapy for Brain Tumors

    MedlinePLUS Videos and Cool Tools

    ... Stereotactic Radiation Therapy for brain tumors. As an alternative to surgical removal of tumors, the Trilogy system ... manufactured by Varian Medical Systems in Palo Alto, California, is a much more versatile machine using much ...

  1. PhD Recent Graduates with background in Distributed Systems. Virtualization, Distributed Systems, Application Servers or Operating Systems

    E-print Network

    Plotkin, Joshua B.

    PhD Recent Graduates with background in Distributed Systems. Virtualization, Distributed SystemsD in Computer Science * Must have knowledge/experience building virtual machines, distributed systems, Application Servers or Operating Systems Global Business Incubator Location ­ Palo Alto PURPOSE

  2. Northwest corner, showing arcade at ground level, and triple leaded ...

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

    Northwest corner, showing arcade at ground level, and triple leaded glass windows of bender room high on north elevation. - Stanford University Library, Stanford University, Palo Alto, Santa Clara County, CA

  3. Music at Brasenose Concerts and Choir

    E-print Network

    Oxford, University of

    Alto ­ Stephanie Williams Tenor ­ Morgan Gibson Tenor ­ Joseph Parker Bass ­ James Carey Bass ­ Milo Smith Music Scholars Ella Thorpe Beeston Mia Cuthbertson Jasmine Ko Rachel Maxey Isobel Warner Charlotte

  4. Paleontology and Geology of Indiana Department of Geological Sciences | P. David Polly 1

    E-print Network

    Polly, David

    Name: ____________________________________ Lab 5 Corals and Bryozoa Corals (Phylum Cnidaria) and bryozoans (Phylum Bryozoa) are two common Paleozoic groups. Skeletons of the two groups are superficially Scientific: Palo Alto) #12;Department of Geological Sciences | P. David Polly 4 Bryozoa Bryozoans

  5. Correspondence: James F. Fowler, USDA Forest Service, Rocky Mountain Research Station, Southwest Forest Science Complex, 2500 S. Pine Knoll Drive, Flagstaff, Arizona 86001, U.S.A.; jffowler@fs.fed.us

    E-print Network

    -veneris, Aquilegia micrantha, Calamagrostis scopulorum, and Cirsium rydbergii Herbaceous Associations: Adiantum Capillus-veneris, Aquilegia micrantha, Calamagrostis scopulorum, y Cirsium rydbergii. Estas especies, y tienen valores más altos en la dominancia que las asociaciones de Calamagrostis scopulorum y de

  6. 78 FR 33841 - Ocean Transportation Intermediary License Applicants

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-05

    ...Type: New NVO & OFF License. Super You Global (NVO & OFF), 391 Curtner Avenue, Suite 1, Palo Alto, CA 94306, Officers: Hu Wang, CEO (QI), Xin You, President, Application Type: New NVO & OFF License. Windstream International Inc. (NVO &...

  7. UNIVERSIDAD SIMN BOLVAR Sartenejas 07 de Junio de 2012

    E-print Network

    Vásquez, Carlos

    a la educación. · Asesorar la compra, instalación y mantenimiento de equipos multimedia, así como el/aprendizaje teórico práctico en un mismo ambiente físico, y al mismo tiempo contar con espacios de alto equipamiento

  8. M&A Analysis and Implementation Company Description

    E-print Network

    Dahl, David B.

    marketing strategy & estimate annual costs -identify acquisition targets & prepare financing materials options that fit acquisition criteria. Company Description: Private Equity Company from Palo Alto, Ca. Short Project Name: Identify Successful Private Equity Investments Project Description and Deliverables

  9. A Semantics for a Logic of Authentication (Extended Abstract)

    E-print Network

    Tuttle, Mark R.

    Corporation Systems Research Center 130 Lytton Avenue Palo Alto, CA 94301 ma@src.dec.com Mark R. Tuttle tuttle@crl.dec.com Abstract: Burrows, Abadi, and Needham have pro- posed a logic for the analysis

  10. TRANSLATIONAL PHYSIOLOGY Whole blood and leukocyte RNA isolation for gene expression analyses

    E-print Network

    Richardson, David

    TRANSLATIONAL PHYSIOLOGY Whole blood and leukocyte RNA isolation for gene expression analyses of Florida College of Medicine, Gainesville, Florida; 3 Stanford Genome Technology Center, Palo Alto of Medicine, St. Louis, Missouri; 6 Department of Chemical Engineering, Massachusetts Institute of Technology

  11. UNIVERSITA DEGLI STUD! DI CATANIA Protocolto Generale -Albo Officiate

    E-print Network

    Bella, Giampaolo

    Ivlinisteriale 23 otlobre 2003 n. 198 "Fondo per it sostegno dci giovani e per favorire la mobility degli the revisions Is normative di principle in materia di diritto alto studio e valorizzazione dci collegl

  12. Para muchos jóvenes supervivientes de cáncer, los efectos tardíos representan problemas duraderos

    Cancer.gov

    Muchos adolescentes y adultos jóvenes supervivientes de cáncer no saben o subestiman el alto riesgo que tienen de sufrir efectos tardíos en su salud. Hay esfuerzos en marcha para aumentar la concientización y la vigilancia de estos efectos tardíos.

  13. Injecting Management Robert E. Filman*

    E-print Network

    Filman, Robert E.

    was on assignment from Lockheed Martin Missiles and Space. LMMS contact information: Advanced Technology Center; Lockheed Martin Missiles and Space; 3251 Hanover Street O/H1-43 B/255; Palo Alto, California 94304. Email

  14. Statistical Properties of the Cluster Dynamics of the Systems of ...

    E-print Network

    1910-70-12

    mathematical proof of the local existence theorem of the solutions of the ... There were many attempts to extend the conditions under which the ..... processes evolve in multiple scales, from global to microscopic ones. Alto- ... Scale invariance.

  15. Opportunities Exist: Continuous Discovery of Places to Perform Activities

    E-print Network

    Toronto, University of

    Opportunities Exist: Continuous Discovery of Places to Perform Activities David Dearman1 , Timothy, Canada {dearman, khai}@cs.toronto.edu 2 Nokia Research Center 955 Page Mill Road Palo Alto, California

  16. ProfessorMassoudAmin,D.Sc. Professor Massoud Amin (http://umn.edu/~amin) witnessed the 1977 NYC blackout, the 9/11 tragedies near DC, and the

    E-print Network

    Amin, S. Massoud

    blackout, the 9/11 tragedies near DC, and the collapse of the I-35W bridge. He works on enabling smart of increasing responsibility at the Electric Power Research Institute (EPRI) in Palo Alto. After 9/11, he

  17. MATRCULA ESTUDIOS FACULTAD CIENCIAS Curso 2013/2014

    E-print Network

    Escolano, Francisco

    Grado 2. Títulos en proceso de extinción: Licenciaturas y Diplomaturas 3. Títulos de Másteres Oficiales Y PROCEDIMIENTOS ADMINISTRATIVOS IV. IDIOMAS EN LA DOCENCIA 1. Grupo Alto Rendimiento Académico (ARA

  18. Ashish Khisti 10 King's College, Rd. BA-4128, Phone: (416)-978-7215

    E-print Network

    Khisti, Ashish

    and Architectures for Multiuser, Multi-terminal, and Multilayer Information- Theoretic Security Advisor: Gregory W and Coding Theory · Wireless Security · Multimedia Communication Systems Employment Record University Suhas Diggavi. Collaborated on information theoretic security. Hewlett Packard Laboratories Palo Alto

  19. 76 FR 55702 - National Register of Historic Places; Notification of Pending Nominations and Related Actions

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-09-08

    ...County Shoup, Paul, House, 500 University Ave., Los Altos, 11000696 DELAWARE New Castle County Water Witch Steam Fire Engine Company No. 5, 1814 Gilpin Ave., Wilmington, 11000697 FLORIDA Manatee County Benjamin, Judah P....

  20. Conservation Biology, Pages 16381646 Volume 16, No. 6, December 2002

    E-print Network

    regiones mixtas y de pastos altos, Cistothorus platensis y Spizella pallida usaron tanto parches extensos to geographic variation in local and landscape structure. Sedge Wrens (Cistothorus platen- sis) and Clay

  1. Latin American Theatre Review, Volume 12, Number 1: Front Matter

    E-print Network

    1978-10-01

    , follow a path that extends from the exploration of an absurd reality to a possible logical solution. (In Spanish) (DZ) Ramón Layera, "After the Coup: Four Dramatic Versions of Allende's Chile." Victor Torres' Una casa en Lota Alto (1973), Sergio...

  2. BLABLA -PALEONTOLOGA COMBUSTIBLES SLIDOS (ASFALTITA) DE LA PROVINCIA

    E-print Network

    Galland, Olivier

    . Vaca Muerta, de edad Jurásica tardía. En la provincia del Neuquén, las vetas son mayormente filones Tromen. Ahí la asfaltita es de alto grado, pero en otros lugares es de grado menor.También cerca de las

  3. Use of Time-Domain Simulations in Automatic Synthesis of Computational Circuits Using Genetic Programming

    E-print Network

    Fernandez, Thomas

    Programming William Mydlowec Genetic Programming Inc. Los Altos, California myd@cs.stanford.edu John R. Koza's desired behavior and characteristics (Koza, Bennett, Andre, and Keane 1999; Koza, Bennett, Andre, Keane

  4. Informe de actividades 2007 + Paisaje de Bolivia.

    E-print Network

    comunidad científica de alto nivel a través de una red de laboratorios instalados en Marruecos, Senegal importante dinámica de cooperación fue confirmada en Marruecos a través del lanzamiento de nuevos programas y

  5. Portfolio of compositions 

    E-print Network

    Wagstaff, Julian

    2008-01-01

    Title of Work 1) The Turing Test – a Studio Opera (60 mins). 2) Symphony for Chamber Orchestra (25 mins). 3) Treptow – for String Orchestra (10 mins). 4) Sonata for Alto Saxophone and Piano (12 mins). 5) Symphonic ...

  6. Biostatistics (2007), 8, 1, pp. 128139 doi:10.1093/biostatistics/kxj038

    E-print Network

    Storey, John D.

    2007-01-01

    -based two-channel microarrays using new ink-jet printing technologies (e.g. Agilent Laboratories, Palo Alto levels need to be adjusted to accurately reflect the underlying amount of To whom correspondence should

  7. Page 1 of 5 VAPAHCS House Staff Coordinators

    E-print Network

    Puglisi, Joseph

    -5000 Ext. 65083 E-Mail: Vivian.Miller@va.gov #12;Page 3 of 5 Nephrology Marian Askew (POC for Nephrology Fellows) VA Palo Alto Health Care System Nephrology Section, Medical Service 3801 Miranda Ave (111R) Palo

  8. November 29, 2006 Printer Friendly Version Message from Dean Ed Redente

    E-print Network

    .M. Mattor. 2006 "Why won't they come? Stakeholder perspectives on collaborative national forest planning sp.) at the Real Alto Site, Ecuador. Economic Botany 60: 103-120. Cheng, Tony (FRWS), A.S. and K

  9. Prediabetes: What You Need to Know

    MedlinePLUS

    ... la cantidad de glucosa (también llamada azúcar) en sangre es más alta de lo normal pero no ... para obtener energía. Un nivel de glucosa en sangre demasiado alto puede dañar su organismo con el ...

  10. Microsoft PowerPoint - Chris Becker PPD_NCI_Biospecimens

    Cancer.gov

    A leading global CRO Research Team in addition to PPD Patient Recruitment, Phlebotomy and Initial Collection Tube Manipulations Palo Alto Medical Foundation (PAMF) Arthur Bobrove, M.D., Director of Research Multiplexed Immunoassay (IA) Development Millipore Corp.

  11. Microsoft PowerPoint - Becker Caprion NCI OBBR March 2010

    Cancer.gov

    Research Team in addition to Caprion Patient Recruitment and Phlebotomy Palo Alto Medical Foundation (PAMF) Arthur Bobrove, M.D., Director of Research Multiplexed Immunoassay (IA) Development Millipore Corp.

  12. NEAR FIELD RECEIVING WATER MONITORING OF TRACE METALS IN CLAMS (MACOMA BALTHICA) AND SEDIMENTS

    E-print Network

    ............................................................................................................. 63 i #12;ILLUSTRATIONS _______ Figure 1. Map showing sampling station at Palo Alto in South San..................................................................................................................................................... 12 4. Graph showing concentrations of chromium, vanadium and nickel in sediments in 1994 through 2001

  13. Cutaneous leishmaniasis in the Peruvian Andes: risk factors identified from a village cohort study.

    PubMed

    Davies, C R; Llanos-Cuentas, E A; Campos, P; Monge, J; Villaseca, P; Dye, C

    1997-01-01

    Risk factors for cutaneous leishmaniasis were identified from a comparative study of transmission rates in 27 villages in the Departments of Lima, Ancash, and Piura in Peru. To evaluate regression analysis as a tool for the incrimination of sand fly vectors in the absence of other biologic evidence, univariate and multivariate logistic regression analyses were used to identify which of 14 variables (the abundance of nine sand fly species, four social factors, and region) predicted transmission rates in villages (incidence, active prevalence, or cumulative prevalence). In general, suspected or proven vectors (e.g., Lutzomyia peruensis) had the strongest associations with transmission rate, indicating that regression is a useful supplementary method of incriminating vectors. Regression was then used to quantify the importance of suspected risk factors. Transmission rate increased with the abundance of Lu. peruensis, Lu. ayacuchensis, Lu. noguchii, and, to a lesser extent, Lu. verrucarum and transmission was higher among villagers who slept more frequently in temporary shelters in crop areas. There were also weak effects of the number of dogs/ person (negative) and the number of persons/household (positive). Linear regressions failed to detect a threshold sand fly density below which transmission ceases. The minimal adequate multiple regression model explained 82% of the variance in village incidence rates. This model was used to predict the effect on incidence of reducing each of the four suspected vectors in northern and southern Peru. The results indicate that vector control programs in the south should aim at Lu. peruensis, Lu. verrucarum, and Lu. noguchii, but focus on Lu. ayacuchensis in the north. PMID:9063368

  14. Airport: Fly into either (SJC) San Jose International Airport (12.2 miles from CHM) or (SFO) San

    E-print Network

    Geller, Michael R.

    , CA 94040 Tel: 650-940-1000 | Fax: 650-968-7870 | Toll free: 800-538-1600 (4.3 miles from CHM) www from CHM) www.hotelzico.com Palo Alto Crowne Plaza Cabaña Hotel 4290 El Camino Real Palo Alto, CA 94306 Tel: 650-8570787 | Fax: 650-4961939 | Toll free: 888-422-2264 (3.5 miles from CHM) www

  15. Robust decision-making under uncertainty for a moorland ecosystem's water resources management under scenarios of climate variability

    NASA Astrophysics Data System (ADS)

    Flores-Lopez, F.; Forni, L.; Escobar, M.; Purkey, D. R.

    2013-12-01

    A climate-informed water resources decision-making framework can help effectively manage the complexity of water resources while adapting to climate change effects. The decision-making framework allows for more effective and inclusive water resources management, and results in better informed decisions about water allocation and adaptation strategies. This study focuses on modeling the moorland ecosystem's water resources management under climate variability, and strengthening the capacities of local actors through a robust decision-making under uncertainty framework to analyze and plan water resources use in the region of Piura, Peru. The objective is to determine the reliability of the moorland ecosystem's water supply and to provide relevant hydrological information under scenarios of climate variability and other non-climate uncertainties. As a first step, a participatory workshop was carried out with key regional actors to obtain information that would help to define the uncertainties that define availability of water resources, the potential strategies for adaptation to improve existing conditions, and the performance indicators by which to assess these uncertainties and strategies. For the identification of these factors, we used the XLRM assessment framework (eXogenous uncertainties, policy Levers, Relationships, and Measures). The XLRM framework allows us to organize the important elements of risk analysis and vulnerability in the four assessment categories. This study also used the WEAP (Water Evaluation And Planning system) platform to support water resources planning and decision-making under uncertainty e.g. climate change and other stresses in the system. Within the R component, WEAP was used to model the hydrological response of the moorland ecosystem. The model includes the results of the XLRM framework and seeks to determine the importance that the moorlands have on the regional water system. Results of this model include the head flows produced that feed the watershed management model under different sensitivity scenarios of precipitation and temperature. Vulnerability is observed on the produced base flows of the moorlands ecosystem due to a decrease in moorlands' area and to climate variability-related impacts during the 50 years of simulation. This system-level vulnerability has significant effects on the water supply available for downstream demand sites, including rural and agricultural users that rely exclusively on a reservoir.

  16. Identification and distribution of New World Leishmania species characterized by serodeme analysis using monoclonal antibodies.

    PubMed

    Grimaldi, G; David, J R; McMahon-Pratt, D

    1987-03-01

    Five hundred thirty stocks of Leishmania isolated from human and domestic and wild reservoir hosts, representing a wide geographic distribution of endemic foci of American cutaneous (ACL) and visceral leishmaniases (AVL) were characterized and identified at species and/or subspecies levels based on their reactivity to a cross-panel of specific monoclonal antibodies using a radioimmune binding assay. This study confirms and extends our preliminary results on the high specificity of some of these monoclonals for the L. braziliensis, L. mexicana, and L. donovani complexes. This study also demonstrates the relative stability of these molecular markers and the general usefulness of the method for parasite identification. Two hundred ninety-two of 420 isolates of ACL were classified as members of the L. braziliensis complex. Two hundred twenty-seven were L. b. braziliensis; these showed the widest geographical distribution (Brazil: Amazonas, Bahia, Ceara, Espirito Santo, Goias, Minas Gerais, Para, Paraiba, Rio de Janeiro, and Sao Paulo; Honduras: Santa Barbara and Yoko; Peru: Ancash, Piura, and Ucayali; and Venezuela: Cojedes, Distrito Federal, Lara, Portuguesa, Vale Hondo, Yaracuy, and Zulia). Forty-one stocks were identified as L. b. guyanensis (from North Brazil: Amazonas, Amapa, Para, and Rondonia). Twenty-one stocks were identified as L. b. panamensis (from Costa Rica: Alajuela, Guanacasten, Limon, Puntarenas, and San Jose; and Honduras: El Paraiso, and Olancho). Out of 128 isolates classified as members of the L. mexicana complex, 74 were differentiated as L. m. amazonensis (from Bolivia; Brazil: Amazonas, Bahia, Ceara, Goias, Maranhao, Mato Grosso do Norte, and Para; Peru: Pasco Forest and Van Humboldt; and Venezuela: Carabobo, Guarico, and Merida). Forty-four stocks were identified as L. m. venezuelensis (from Venezuela: Lara). Six stocks were L. m. mexicana (from Belize; and Mexico: Campeche [corrected] and Quintana Roo, Yucatan). One hundred ten isolates from AVL were identified as L. donovani chagasi (from Brazil: Bahia, Ceara, Maranhao, Minas Gerais, Mato Grosso do Sul, Piaui, Rio de Janeiro, and Sergipe; and Honduras: Valle). The implications of these results with respect to both the clinical and epidemiological data (including the detection of seven unusual characterized stocks) are discussed. PMID:3826486

  17. Shadows of the colonial past – diverging plant use in Northern Peru and Southern Ecuador

    PubMed Central

    Bussmann, Rainer W; Sharon, Douglas

    2009-01-01

    This paper examines the traditional use of medicinal plants in Northern Peru and Southern Ecuador, with special focus on the Departments of Piura, Lambayeque, La Libertad, Cajamarca, and San Martin, and in Loja province, with special focus on the development since the early colonial period. Northern Peru represents the locus of the old Central Andean "Health Axis." The roots of traditional healing practices in this region go as far back as the Cupisnique culture early in the first millennium BC. Northern Peru and Southern Ecuador share the same cultural context and flora but show striking differences in plant use and traditional knowledge. Two hundred fifteen plant species used for medicinal purposes in Ecuador and 510 plant species used for medicinal purposes in Peru were collected, identified,. and their vernacular names, traditional uses, and applications recorded. This number of species indicates that the healers, market vendors, and members of the public interviewed in Peru still have a very high knowledge of plants in their surroundings, which can be seen as a reflection of the knowledge of the population in general. In Ecuador much of the original plant knowledge has already been lost. In Peru, 433 (85%) were Dicotyledons, 46 (9%) Monocotyledons, 21 (4%) Pteridophytes, and 5 (1%) Gymnosperms. Three species of Giartina (Algae) and one species of the Lichen genus Siphula were used. The families best represented were Asteraceae with 69 species, Fabaceae (35), Lamiaceae (25), and Solanaceae (21). Euphorbiaceae had 12 species, and Poaceae and Apiaceae each accounted for 11 species. In Ecuador the families best represented were Asteraceae (32 species), Euphorbiaceae, Lamiaceae, and Solanaceae (11 species each), and Apiaceae, Fabaceae, Lycopodiaceae (9 species each). One hundred eighty-two (85%) of the species used were Dicotyledons, 20 Monocotyledons (9.3%), 12 ferns (5.5%), and one unidentified lichen was used. Most of the plants used (83%) were native to Peru and Ecuador. Fresh plants, often collected wild, were used in two thirds of all cases in Peru, but in almost 95% of the cases in Ecuador. The most common applications included the ingestion of herb decoctions or the application of plant material as poultices. Although about 50% of the plants in use in the colonial period have disappeared from the popular pharmacopoeia, the overall number of plant species used medicinally has increased in Northern Peru, while Southern Ecuador shows a decline of plant knowledge since colonial times. PMID:19187546

  18. Chromosome size polymorphism in Plasmodium falciparum can involve deletions of the subtelomeric pPFrep20 sequence.

    PubMed Central

    Patarapotikul, J; Langsley, G

    1988-01-01

    The P. falciparum pPFrep20 repetitive element from the Palo Alto Uganda strain has been isolated and sequenced. The Palo Alto pPFrep20 repeat (pPFPArep20) has a clustered subtelomeric location and on chromosome 1 has been deleted from one end. Analysis of chromosome 1 from 5 other strains has revealed that pPFrep20 sequences have been deleted from one end in 3 of them. Thus, deletion of pPFrep20 appears to be a frequent event that could significantly contribute to chromosome size polymorphism in P. falciparum. Images PMID:2837730

  19. Panoramic Video Capturing and Compressed Domain Virtual Camera Control

    E-print Network

    California at Santa Barbara, University of

    Panoramic Video Capturing and Compressed Domain Virtual Camera Control Xinding Sun*, Jonathan Foote Avenue Palo Alto, CA 94304 {foote, kimber}@pal.xerox.com ABSTRACT A system for capturing panoramic video applications such as classroom lectures and video conferencing. The proposed method is based on the Fly

  20. Interfractional Uncertainty in the Treatment of Pancreatic Cancer With Radiation

    Microsoft Academic Search

    Priya Jayachandran; A. Yuriko Minn; Jacques Van Dam; Jeffrey A. Norton; Albert C. Koong; Daniel T. Chang

    2010-01-01

    Purpose: To compare the interfractional variation in pancreatic tumor position using bony anatomy and implanted fiducial markers. Methods and Materials: Five consecutively treated patients with pancreatic adenocarcinoma who received definitive intensity-modulated radiation therapy at Stanford University (Stanford, CA) underwent fiducial seed placement and treatment on the Varian Trilogy system (Varian, Palo Alto, CA) with respiratory gating. Daily orthogonal kilovoltage imaging

  1. Keeping Bots out of Online Games Philippe Golle

    E-print Network

    Golle, Philippe

    Wired he earned $3,917 in one month by buying and reselling cybergoods from Ultima Online on eBay [3 be used to play games entirely based on their statistical properties, thereby earning money againstKeeping Bots out of Online Games Philippe Golle Palo Alto Research Center 3333 Coyote Hill Rd Palo

  2. Seismology and Enhanced Geothermal Systems Bruce R. Julian

    E-print Network

    Foulger, G. R.

    Seismology and Enhanced Geothermal Systems Bruce R. Julian Foulger Consulting, Palo Alto, CA 94306 in geothermal systems, and in Enhanced Geothermal Systems (EGS) experiments in particular, although many failure in both natural and exploited geothermal systems. Differential methods are poor for determining

  3. Poornima Balasubramanyam, Researcher, U. of Supratik Bhattacharyya, Res. Scientist, Sprint Lab

    E-print Network

    Shenoy, Prashant

    CALIFORNIA Poornima Balasubramanyam, Researcher, U. of Cal. Davis Supratik Bhattacharyya, Res Fawcett, Senior Research Scientist, Stanford U. Zhengzhu Feng, Soft. Eng., Google Mahesh Girkar, Sr. Tech. Irvine Penelope Sibun, Researcher, Xerox Palo Alto Res. Ctr. Andrew Singer, CEO, Rapport, Inc. Jeff

  4. Wheeler Ruml (UNH) Job Hunting 1 / 17 Job Hunting in Industry and Academia

    E-print Network

    Ruml, Wheeler

    at Harvard, ­2002 s interviews: 0 academic, 2 industry, 1 postdoc 2. Researcher at Palo Alto Research Center (PARC), 2002­2007 s group manager, 2005­2007 s participated in many hiring cases, led one 3. Asst prof Wheeler Ruml (UNH) Job Hunting ­ 6 / 17 Research schools s Can you bring in grant money and students

  5. Wheeler Ruml (UNH) Job Hunting 1 / 17 Job Hunting in Industry and Academia

    E-print Network

    Ruml, Wheeler

    at Harvard, ­2002 interviews: 0 academic, 2 industry, 1 postdoc 2. Researcher at Palo Alto Research Center (PARC), 2002­2007 group manager, 2005­2007 participated in many hiring cases, led one 3. Asst prof Their View Everyone Schools Other Process Conclusion Wheeler Ruml (UNH) Job Hunting ­ 6 / 17 Research

  6. Shock Chlorination of Stored Water Supplies (Spanish) 

    E-print Network

    Dozier, Monty; McFarland, Mark L.

    2005-05-25

    , cuando usa hipoclorito de cloro l?quido al 5.25 por ciento, elija la variedad simple y sin olor u otros aditivos. El hipoclorito de calcio de alto grado se puede comprar en polvo o en la forma de tabletas. Agregando los productos de cloro a un tanque...

  7. ALFA: first operational experience of the MPE\\/MPIA laser guide star system for adaptive optics

    Microsoft Academic Search

    Ric I. Davies; Wolfgang K. Hackenberg; T. Ott; Andreas Eckart; Hans-Christoph Holstenberg; S. Rabien; Andreas Quirrenbach; Markus Kasper

    1998-01-01

    The sodium laser guide star adaptive optics system ALFA has been constructed at the Calar Alto 3.5m telescope. Following the first detection of the laser beacon on the wavefront sensor in 1997 the system is now being optimized for best performance. In this contribution we discuss the current status of the launch beam and the planned improvements and upgrades. We

  8. ESPELEOTURISMO E EDUCAÇÃO AMBIENTAL NO PETAR - SP1 SPELEOTOURISM AND ENVIRONMENTAL EDUCATION IN PETAR (SP)

    Microsoft Academic Search

    Zysman Neiman; Andréa Rabinovici

    Resumo Este artigo apresenta discute aspectos da psicologia comportamental relacionados ao carste e às cavernas através de observações participantes em 107 viagens realizadas ao Parque Estadual Turístico do Alto Ribeira (PETAR), com o objetivo de analisar a contribuição dessas experiências para a implantação de programas de Educação Ambiental através do Espeleoturismo no Brasil. Foram observados quais processos potencializam a transformação

  9. Corrosion Control Using Regenerative Biofilms on Aluminum 2024 and Brass in Different Media

    E-print Network

    Wood, Thomas K.

    Corrosion Control Using Regenerative Biofilms on Aluminum 2024 and Brass in Different Media F Institute, Palo Alto, California 94303, USA The corrosion behavior of Al 2024-T3 and C26000 brass exposed of the corrosion potential Ecorr were observed for Al 2024 in both media in the presence of the biofilms

  10. TLA-55 Rotor Used in Beckman Coulter OptimaTM

    E-print Network

    Pawlowski, Wojtek

    Ultracentrifuges Published by the Centrifuge Instrument Systems Development Center of Beckman Coulter, Inc., Palo, and tested for safety and reliability as part of a Beckman Coulter ultracentrifuge/rotor system. Its safety Alto, California 94304 TL-TB-020C November 2002 © 2002 Beckman Coulter, Inc. #12;2 TLA-55 Rotor SAFETY

  11. Improving Energy Efficiency of Wi-Fi Sensing on Smartphones

    E-print Network

    California at Davis, University of

    Improving Energy Efficiency of Wi-Fi Sensing on Smartphones Kyu-Han Kim,1 Alexander W. Min,2 Dhruv Gupta,3 Prasant Mohapatra,3 Jatinder Pal Singh1 1 Deutsche Telekom R&D Laboratories USA, Los Altos, CA in mobile devices, inhibits always-on connectivity even in areas with good Wi-Fi coverage. This paper

  12. Collaborative Intelligence Analysis with CACHE and its Effects on Information Gathering and Cognitive Bias

    E-print Network

    and Cognitive Bias Dorrit Billman Gregorio Convertino Jeff Shrager J.P. Massar Peter Pirolli Palo Alto Research;Information Gathering and Bias Mitigation in CACHE 2 1. INTRODUCTION A recent cognitive task analysis rationality. Individuals exhibit systematic cognitive biases (Tversky & Kahneman, 1974). Confirmation bias

  13. Internet Research Group, 1999 THE NETWORK PROVIDERS BUSINESS CASE

    E-print Network

    Venkataramani, Arun

    © Internet Research Group, 1999 THE NETWORK PROVIDERS BUSINESS CASE FOR INTERNET CONTENT DELIVERY Peter Christy Vice President Internet Research Group 399 Main St., Los Altos, CA 94022 (650) 559-2103 pchristy@irgintl.com www.irgintl.com #12;The ISP Business Case for Internet Content Delivery Page i

  14. Aguaruna Jivaro Gardening Magic in the

    E-print Network

    Stoiciu, Mihai

    Aguaruna Jivaro Gardening Magic in the Alto Rio Mayo, Peru1 Michael F. Brown and Margaret L. Van the growth of their cultivated plants they sing magical gardening songs, perform a set of ritual acts when planting a #12;new garden, and observe certain taboos connected with garden work. Moreover, in attempting

  15. ! ! 1 2 3 1 %% (4 " ) 5 & 6 * $

    E-print Network

    Boyer, Elizabeth W.

    produced by The Standard Pennant Company in Big Run, PA--chenille wool leaf and lettering on a felt (1946) at Mont Alto. It is chenille wool on a felt keystone and was produced by The Standard Pennant. The patches were hand-sewn and therefore had variations. The hand-sewn wool patches (like this one donated

  16. La startup innovativa: opportunit e prospettive Mercoled 27 marzo 2013, ore 10.00

    E-print Network

    Robbiano, Lorenzo

    La startup innovativa: opportunità e prospettive Mercoledì 27 marzo 2013, ore 10.00 Camera di Commercio di Genova, Via Garibaldi 4 Salone del Consiglio La "startup innovativa" è la nuova impresa ad alto contenuto innovativo introdotta dal "decreto crescita 2.0", diventato legge a fine 2012. La startup

  17. Interspecific adaptation by binary choice at de novo polyomavirus T antigen site through accelerated codon-constrained Val-Ala toggling within an intrinsically disordered region

    PubMed Central

    Lauber, Chris; Kazem, Siamaque; Kravchenko, Alexander A.; Feltkamp, Mariet C.W.; Gorbalenya, Alexander E.

    2015-01-01

    It is common knowledge that conserved residues evolve slowly. We challenge generality of this central tenet of molecular biology by describing the fast evolution of a conserved nucleotide position that is located in the overlap of two open reading frames (ORFs) of polyomaviruses. The de novo ORF is expressed through either the ALTO protein or the Middle T antigen (MT/ALTO), while the ancestral ORF encodes the N-terminal domain of helicase-containing Large T (LT) antigen. In the latter domain the conserved Cys codon of the LXCXE pRB-binding motif constrains codon evolution in the overlapping MT/ALTO ORF to a binary choice between Val and Ala codons, termed here as codon-constrained Val-Ala (COCO-VA) toggling. We found the rate of COCO-VA toggling to approach the speciation rate and to be significantly accelerated compared to the baseline rate of chance substitution in a large monophyletic lineage including all viruses encoding MT/ALTO and three others. Importantly, the COCO-VA site is located in a short linear motif (SLiM) of an intrinsically disordered region, a typical characteristic of adaptive responders. These findings provide evidence that the COCO-VA toggling is under positive selection in many polyomaviruses, implying its critical role in interspecific adaptation, which is unprecedented for conserved residues. PMID:25904630

  18. Esame di Probabilit`a e Statistica del 9 luglio 2010 (Corso di Laurea Triennale in Matematica, Universit`a degli Studi di Padova).

    E-print Network

    Vargiolu, Tiziano

    di asma in un dato ospedale sia una variabile aleatoria di Poisson di parametro = 1.5. 1. Come sar`a distribuito il numero di persone ricoverate per attacchi violenti di asma in due giorni? 2. Qual `e la anno 10 giorni sono di alto inquinamento, qual `e il numero atteso di ricoveri per asma in un dato anno

  19. La productivité des salariés âgés : une tentative d'estimation

    Microsoft Academic Search

    Patrick Aubert; Bruno Crépon

    2003-01-01

    [spa] La productividad de los asalariados de más edad: un ensayo de estimación . . En un promedio, los salarios aumentan con la edad del asalariado. Lo natural es preguntarse si los salarios más altos de los trabajadores de más edad corresponden o no a una productividad más alta. La respuesta no carece de consecuencia sobre la empleabilidad de dichos

  20. SLEEP AND CIRCADIAN NEUROBIOLOGY LAB. 1201 Welch Rd. MSLS Bldg.

    E-print Network

    Kay, Mark A.

    SLEEP AND CIRCADIAN NEUROBIOLOGY LAB. 1201 Welch Rd. MSLS Bldg. Rm. P213 Palo Alto, CA 94305 nishino@stanford.edu #12;Nishino S, Fujiki N "Neuropeptides as possible targets in sleep disorders/orexin and vigilance control." Neuropeptides 2007 Nishino S, "Clinical and neurobiological aspects of narcolepsy

  1. Especificación de la Demanda por Dinero con Innovación Financiera

    Microsoft Academic Search

    José Eduardo Gómez

    En esta nota se presentan los resultados de la estimación de la demanda por base monetaria-dinero de alto expansivo-en Colombia, introduciendo la relación entre depósitos sujetos a encaje y efectivo como proxy de la variable cambio tecnológico en el sistema financiero. Se muestra que hay tres vectores de cointegración, uno de los cuales puede interpretarse como la demanda por base

  2. Response of two coast redwood ( Sequoia sempervirens Endl.) varieties to moderate levels of salt and boron spray measured by stress symptoms: Implications for landscape irrigation using recycled water

    Microsoft Academic Search

    Lin Wu; Xun Guo

    2006-01-01

    Coast redwood (Sequoia sempervirens Endl.) is a popular evergreen tree in landscapes of California and the Pacific Coast States of the United States and Western Canada. Two varieties, Aptos Blue and Los Altos, were tested firstly for tolerance to sodium chloride (NaCl) and boron (B) spray and then in landscape setting when irrigated with recycled water. The NaCl and B

  3. Use of Conditional Developmental Operators and Free Variables in Automatically Synthesizing Generalized Circuits using Genetic Programming

    E-print Network

    Fernandez, Thomas

    Generalized Circuits using Genetic Programming John R. Koza Stanford Medical Informatics Department makeane@ix.netcom.com William Mydlowec Genetic Programming Inc. Los Altos, California myd@cs.stanford.edu Abstract This paper demonstrates that genetic programming can be used to create a circuit

  4. Measurements of Forward and Reverse Acoustics of the Human Middle Ear: Implications for Otoacoustic Emissions

    E-print Network

    Allen, Jont

    Measurements of Forward and Reverse Acoustics of the Human Middle Ear: Implications for Otoacoustic and California Ear Institute at Stanford, 801 Welch Road, Palo Alto, CA 94304 Email: puria@stanford.edu Running/Abbreviated Title: Forward and reverse middle-ear acoustics Corresponding Author: Sunil Puria, PhD Dept

  5. Measurements of human middle ear forward and reverse acoustics: Implications for otoacoustic emissions

    E-print Network

    Allen, Jont

    Measurements of human middle ear forward and reverse acoustics: Implications for otoacoustic and California Ear Institute at Stanford, 801 Welch Road, Palo Alto, California 94304 Received 11 July 2002; revised 1 February 2003; accepted 4 February 2003 Middle and inner ears from human cadaver temporal bones

  6. Measuring the Outcomes of an Individualized Career Guidance System.

    ERIC Educational Resources Information Center

    Hamilton, Jack A.; And Others

    During the past five years, staff of the American Institute for Research (AIR) in Palo Alto, California have been developing, field testing, and revising a guidance system especially suited to systems of individualized education. A primary aim of AIR's Comprehensive Career Guidance System (CCGS) is to help each student plan wisely for the future.…

  7. Available online at www.sciencedirect.com Sensors and Actuators B 129 (2008) 7986

    E-print Network

    Lee, Thomas H.

    2008-01-01

    Center, Stanford University, Palo Alto, CA 94304, United States b Center for Integrated Systems, Stanford; accepted 18 July 2007 Available online 2 August 2007 Abstract An electronic system for the multiplexed target. © 2007 Elsevier Ltd. All rights reserved. Keywords: DNA biosensor; Electronic DNA microarray; DNA

  8. International Conference on Acoustics, Speech and Signal Processing (ICASSP 2011) May 22-27, 2011, Prague, Czech Republic Reconstructing Completely Overlapped

    E-print Network

    Pardo, Bryan

    of music often encounter situations where a harmonic sound is almost completely overlapped in time from the same note being available. We propose a musical sound separation system for monau- ral instrument (bassoon) playing the bass line and the other playing the alto (clarinet or trumpet) or soprano

  9. WHERE DO YOU WANT YOUR EARS? COMPARING PERFORMANCE QUALITY AS A FUNCTION OF LISTENING POSITION IN A VIRTUAL

    E-print Network

    Cooperstock, Jeremy R.

    musicians' performance. Specifically, for some musicians, e.g., lead trumpet players, an acoustically, in a large jazz band, a lead trumpet, surrounded by other trumpet players and positioned directly behind times of the sounds from the various instruments, is very different from the experience of a lead alto

  10. Plenary.

    ERIC Educational Resources Information Center

    Brown, John Seely

    2000-01-01

    Presents a biography of John Seely Brown, chief scientist of Xerox Corporation and the director of its Palo Alto Research Center (PARC). Interests include formation of corporate strategy; corporate research, including organizational learning, ethnographies of the workplace, and complex adaptive systems; and human learning and the management of…

  11. We're Hiring Join the Team and Work on some of Today's Grand

    E-print Network

    Pinsky, Ross

    Computing, such as risk analytics, network security, software defined networking, high-end transaction and enthusiastic people to join our teams in Palo Alto and London to work in areas such as Analytics, HPC, Trading of the current openings follow. Acceleration Architect London, UK The Data Analytics team develops analytics

  12. Speaking Personally--With John Seely Brown

    ERIC Educational Resources Information Center

    American Journal of Distance Education, 2008

    2008-01-01

    This article presents an interview with John Seely Brown, a visiting scholar at the University of Southern California and a former chief scientist of Xerox Corporation and director of its Palo Alto Research Center (PARC)--a position he held for nearly two decades. While head of PARC, Brown expanded the role of corporate research to include such…

  13. Beyond Location: Hypertext Workspaces and Non-Linear Views

    E-print Network

    Marshall, Cathy

    of location to one of interpretation and analysis. As the student goes about collecting information for her Texas A&M University 3333 Coyote Hill Road 1360 O'Brian Drive College Station, TX 77843-3 1I2 Palo Alto INTRODUCTION Hypertext, especially the World Wide Web, has taken an everyday role in the lives of many people

  14. PROPUESTA DE SELLOS DE CALIDAD PARA PRODUCTOS DE LA PEQUEÑA AGROINDUSTRIA RURAL DE AMERICA LATINA

    Microsoft Academic Search

    Oyarzún Macchiavello

    Cuando se ofrecen garantías de que el producto alimenticio corresponde a lo que se busca, este consumidor consciente está dispuesto a pagar un precio más alto. En esta línea se encuentran tanto los alimentos de origen orgánico o biológico como aquellos que provienen de una zona geográfica determinada y los que han sido producidos por métodos tradicionales. Todos estos alimentos

  15. Fast and accurate read alignment for resequencing

    PubMed Central

    Mu, John C.; Jiang, Hui; Kiani, Amirhossein; Mohiyuddin, Marghoob; Bani Asadi, Narges; Wong, Wing H.

    2012-01-01

    Motivation: Next-generation sequence analysis has become an important task both in laboratory and clinical settings. A key stage in the majority sequence analysis workflows, such as resequencing, is the alignment of genomic reads to a reference genome. The accurate alignment of reads with large indels is a computationally challenging task for researchers. Results: We introduce SeqAlto as a new algorithm for read alignment. For reads longer than or equal to 100 bp, SeqAlto is up to 10 × faster than existing algorithms, while retaining high accuracy and the ability to align reads with large (up to 50 bp) indels. This improvement in efficiency is particularly important in the analysis of future sequencing data where the number of reads approaches many billions. Furthermore, SeqAlto uses less than 8 GB of memory to align against the human genome. SeqAlto is benchmarked against several existing tools with both real and simulated data. Availability: Linux and Mac OS X binaries free for academic use are available at http://www.stanford.edu/group/wonglab/seqalto Contact: whwong@stanford.edu PMID:22811546

  16. Peru's rapid response to the need for conservation

    E-print Network

    Richner, Heinz

    Peru's rapid response to the need for conservation Within the framework of global efforts to conserve biodiversity, particularly to reduce deforestation of the Amazonian Basin, Peru instituted on the upper right bank of the Alto Madre de Dios River (Madre de Dios Department, southeast Peru; see Figure 2

  17. High Volume Test Automation 1 High Volume Test AutomationHigh Volume Test Automation

    E-print Network

    High Volume Test Automation 1 High Volume Test AutomationHigh Volume Test Automation Keynote Automation 2 AcknowledgementsAcknowledgements · Many of the ideas in this presentation were initially jointly developed with Doug Hoffman,as we developed a course on test automation architecture, and in the Los Altos

  18. Architectures of Test Automation 1 High Volume Test AutomationHigh Volume Test Automation

    E-print Network

    Architectures of Test Automation 1 High Volume Test AutomationHigh Volume Test Automation Cem Kaner Institute of Technology October 2003 #12;Architectures of Test Automation 2 Acknowledgements developed a course on test automation architecture, and in the Los Altos Workshops on Software Testing

  19. D E C E M B E R 1 9 9 0 Technical Note TN18

    E-print Network

    Krintz, Chandra

    ­ tions. #12; Predicting Program Behavior Using Real or Estimated Profiles David W. Wall December, 1990 dD E C E M B E R 1 9 9 0 WRL Technical Note TN­18 Predicting Program Behavior Using Real or Estimated Profiles David W. Wall d i g i t a l Western Research Laboratory 100 Hamilton Avenue Palo Alto

  20. Perceptual organization as graph rectification in a constraint-based scheme for interpreting sloppy stick figures.

    E-print Network

    Fromherz, Markus P.J.

    sloppy stick figures. James V. Mahoney and Markus P. J. Fromherz Xerox Palo Alto Research Center, 3333 a structural modeling approach, suitable for highly articulated or abstract configura- tions. The configuration model and the input scene are represented as graphs, with nodes repre- senting figure parts (e.g., lines

  1. General Certificateless Encryption and TimedRelease Encryption

    E-print Network

    General Certificateless Encryption and Timed­Release Encryption Sherman S.M. Chow 1# , Volker Roth Palo Alto, CA 94304, USA {vroth, rieffel}@fxpal.com Abstract. While recent timed­release encryption (TRE) schemes are implicitly supported by a certificateless encryption (CLE) mechanism, the security

  2. TENDENCIAS DE PUBLICACIÓN EN SALUD PÚBLICA EN COLOMBIA: UNA COMPARACIÓN INTERNACIONAL

    Microsoft Academic Search

    Andrés Ignacio Vecino; Catalina Latorre Santos; Hernán Jaramillo Salazar

    2008-01-01

    El siguiente documento muestra las diferencias temáticas y metodológicas de la publicación internacional en salud pública con respecto a la producción científica de las revistas colombianas. Se seleccionaron 5 revistas, de alto impacto y con indización internacional de carácter general de salud pública en el período de 1991-2005, y se compararon por la complejidad de la metodologías utilizadas para el

  3. Reusable Cryptographic Fuzzy Extractors Xavier Boyen

    E-print Network

    Reusable Cryptographic Fuzzy Extractors Xavier Boyen Voltage Security, Palo Alto xb--a major shortcoming in the case of biometric applications. We propose two particularly stringent security and Communications Security--CCS 2004, Washington, DC, October 2004. This expanded version is available from the IACR

  4. Reusable Cryptographic Fuzzy Extractors Xavier Boyen

    E-print Network

    Reusable Cryptographic Fuzzy Extractors Xavier Boyen Voltage Security, Palo Alto xb and Communications Security---CCS 2004, Washington, DC, October 2004. This expanded version is available from fuzzy secret---a major shortcoming in the case of biometric applications. We propose two particularly

  5. ADAPTIVE PDE OBSERVER FOR BATTERY SOC/SOH ESTIMATION Scott J. Moura

    E-print Network

    Krstic, Miroslav

    and energy storage systems for renewable sources. The relevancy of this topic is further underscored, battery management systems within these advanced trans- portation and energy infrastructures must have Center Robert Bosch LLC Palo Alto, California 94304 nalin.chaturvedi@us.bosch.com ABSTRACT This paper

  6. University of Wurzburg Institute of Computer Science

    E-print Network

    Tran-Gia, Phuoc

    already triggered standardization and the IETF working group ALTO (Application Layer Traffic Optimization@docomolab-euro.com Acknowledgments. This work has been funded partially in the framework of the EU ICT Project SmoothIT (FP7- 2007-ICT-216259) and by the Federal Ministry of Educations and Research of the Federal Republic of Germany

  7. Memoria y Cuenta 2012 PARTE I MEMORIA

    E-print Network

    Vásquez, Carlos

    visión de futuro de formar líderes con un alto compromiso social, con capacidad de generar aportes compartiendo su misión y visión de trabajar con entusiasmo, responsabilidad y armonía en procura de lograr sensibilidad y la solidaridad social; la búsqueda y transmisión universal del saber, la generación, difusión y

  8. MODERNIZACIN DE LOS PARTIDOS POLTICOS: UN DESAFO PARA EL FORTALECIMIENTO DEMOCRTICO EN ARGENTINA

    E-print Network

    Paris-Sud XI, Université de

    partidos políticos descansa la responsabilidad de esta suerte de desprestigio que los afecta. Los partidos participación ciudadana que se expresa a través del alto grado de movilización social en estos últimos años incipiente esperanza de que en los mismos partidos políticos reside una gran cuota de responsabilidad en la

  9. Memoria y Cuenta 2011 MEMORIA Pg.

    E-print Network

    Vásquez, Carlos

    líderes con un alto compromiso social, con capacidad de generar aportes creativos y pertinentes de de trabajar con entusiasmo, responsabilidad y armonía en procura de lograr resultados de gran sensibilidad y la solidaridad social; - La búsqueda y transmisión universal del saber, la generación, difusión

  10. Ecology, 86(12), 2005, pp. 32793288 2005 by the Ecological Society of America

    E-print Network

    Juliano, Steven A.

    albopictus and Aedes aegypti have indirect effects at the adult stage, specifically testing for effects parameters of pathogens. Key words: Aedes aegypti; Aedes albopictus; arborvirus model system; indirect COMPETITION DIFFERENTIALLY AFFECTS ARBOVIRUS INFECTION IN AEDES MOSQUITOES BARRY W. ALTO,1,4 L. PHILIP

  11. Web Camouflage 16 PublishedbytheieeeComPutersoCietyn1540-7993/07/$25.002007ieeenieeeseCurity&PrivaCy

    E-print Network

    Web Camouflage 16 PublishedbytheieeeComPutersoCietyn1540-7993/07/$25.00©2007ieeenieeeseCurity&PrivaCy WebCamouflage Protecting Your Clients from Browser-Sniffing Attacks Markus Jakobsson Palo Alto book on Crimeware (http:// crimeware-book.com). Our proposed Web camouflage solution works

  12. Automatic Synthesis, Placement, and Routing of an Amplifier Circuit by Means of Genetic Programming

    E-print Network

    Fernandez, Thomas

    Automatic Synthesis, Placement, and Routing of an Amplifier Circuit by Means of Genetic Programming Inc., Los Altos, California myd@cs.stanford.edu Abstract The complete design of a circuit typically includes the tasks of creating the circuit's placement and routing as well as creating its topology

  13. Exploring Moral Reasoning in a Cognitive Architecture

    E-print Network

    Langley, Pat

    Exploring Moral Reasoning in a Cognitive Architecture Wayne Iba Computer Science Department and Expertise 2164 Staunton Court, Palo Alto, CA 94306 Abstract Moral reasoning plays a significant but poorly insight on how agents act and reason morally. We present a view of moral cognition and examine one

  14. A Pipelined Lexical Analyzer Timothy Bickmore

    E-print Network

    Filman, Robert E.

    Lockheed Martin Missiles & Space O/96-10 B254E 3251 Hanover Street Palo Alto, California 94304 415-354-5250 415-424-2999 (FAX) filman@stc.lockheed.com Abstract MultiLex is a lexer generator designed, parsing #12;MultiLex Page 1 1 Introduction Lockheed InVision has developed a collection of tools

  15. Applying AI to Software Renovation Robert E. Filman

    E-print Network

    Filman, Robert E.

    1 Applying AI to Software Renovation Robert E. Filman Lockheed Martin Palo Alto Research.com Abstract Lockheed Martin InVision provides software renovation and sustainment services, including systems that require radical change, and reworking the rest.) Lockheed Martin InVision provides software

  16. Cook CV Sept. 2013 1 Curriculum Vitae

    E-print Network

    Singh, Jaswinder Pal

    Huantar Project, 2010-Present. June 2008-Present: SMule (Sonic Mule), Menlo Park/Palo Alto/San Francisco Teaching Experience below). OTHER WORK EXPERIENCE (Roadie, Dog Catcher, etc.) Summer 1985: Audio Consultant, Worlds of Fun/Oceans of Fun theme parks, Kansas City, Missouri. Sound system design and installation

  17. Plenary & Invited Reviews & Seminars (2008-2013) Duncan H Mackay Key plenary and invited reviews are given in bold.

    E-print Network

    Mackay, Duncan

    ). 5. International Space Science Institute, Bern Switzerland (August 2008). 6. Seminar at Lockheed Martin Space Science Division, Palo Alto, USA (October 2008). 7. Solar Activity Cycle 24 Workshop, Napa 2008): Plenary. 9. National Astronomy Meeting, UCLAN, UK (March 2009). 10. International Space Science

  18. Technical Note TN-56 Power and Energy

    E-print Network

    Flinn, Jason

    WRL Technical Note TN-56 Power and Energy Characterization of the Itsy Pocket Computer (Version 1 Alto, California 94301 USA #12;WRL TECHNICAL NOTE TN- 1 Research group. Our focus is research on information technology that is relevant to the technical strategy

  19. Statistical Sentence Condensation using Ambiguity Packing and Stochastic Disambiguation Methods for Lexical-Functional Grammar

    E-print Network

    Riezler, Stefan

    for Lexical-Functional Grammar Stefan Riezler and Tracy H. King and Richard Crouch and Annie Zaenen Palo Alto-entropy model for stochastic output selection. Furthermore, we propose the use of standard parser evaluation-words models and n-grams. Such models may well produce summaries that are indicative of the original's content

  20. Supplementary Materials & Methods fMRI study of cat visual cortex.

    E-print Network

    Tong, Frank

    by the Institutional Animal Care and Use Committee of the University of Pittsburgh. Experimental design and stimuli a 9.4 Tesla Varian (Palo Alto, CA) MR system, with a custom-built surface coil (1.6 cm diameter) positioned over the primary visual cortex. Functional imaging was performed using a 2D gradient echo (GE

  1. A14. ANÁLISIS DEL MERCADEO DE CEBOLLA BLANCA DE RAM A (Allium fistulosum L.) Y ALTERNATIVAS DE COMERCIALIZACIÓN EN TRES COMUNIDADES CANGAHUA - PICHINCHA 2002\\

    Microsoft Academic Search

    Fernanda Velarde; Jorge Rovayo

    La investigación se realizó en Pichincha, Cantó n Cayambe, parroquia Cangahua en tres comunidades indígenas (Larcachaca, Libertad y Chambitola) Las limitaciones que enfrentan los productores, a pequeña y mediana esca la, en la comercialización de sus productos, obedecen a varios factores donde el sect or agroindustrial o mayorista tienen influencia en la formación de precios. Los altos má rgenes de

  2. arXiv:1010.5167v2[math.CV]10Jan2011 Borcea's variance conjectures on the critical points

    E-print Network

    Saff, E. B.

    of polynomials Dmitry Khavinson, Rajesh Pereira, Mihai Putinar, Edward B. Saff and Serguei Shimorin Julius Borcea of Mathematics, Palo Alto. D. Khavinson, M. Putinar and E. Saff also gratefully acknowledge the support grant 400096. #12;2 Khavinson, Pereira, Putinar, Saff and Shimorin conjecture was wrongly attributed

  3. arXiv:1010.5167v1[math.CV]25Oct2010 Borcea's variance conjectures on the critical points

    E-print Network

    Khavinson, Dmitry

    of polynomials Dmitry Khavinson, Rajesh Pereira, Mihai Putinar, Edward B. Saff and Serguei Shimorin Julius Borcea of Mathematics, Palo Alto. D. Khavinson, M. Putinar and E. Saff also gratefully acknowledge the support grant 400096. #12;2 Khavinson, Pereira, Putinar, Saff and Shimorin conjecture was wrongly attributed

  4. Rehabilitation Engineering Center with Research in Controls and Interfaces for Severely Disabled People. Progress Report for Third Year Grant, September 30, 1980-September 29, 1981.

    ERIC Educational Resources Information Center

    LeBlanc, Maurice A.

    The Rehabilitation Engineering Center (Palo Alto, California) has developed a wide range of patient services which provide assistance to the disabled community in northern California and various research activities which have had impact on the disabled population nationally. The Center has three philosophical goals: to assist each child toward as…

  5. Detecting and Correcting Malicious Data in VANETs Philippe Golle

    E-print Network

    Golle, Philippe

    Detecting and Correcting Malicious Data in VANETs Philippe Golle Palo Alto Research Center pgolle@parc.com ABSTRACT In order to meet performance goals, it is widely agreed that vehicular ad hoc networks (VANETs time, the easy access to informa- tion afforded by VANETs potentially enables the difficult security

  6. THE "HAPTIC CAMERA": A TECHNIQUE FOR CHARACTERIZING AND PLAYING BACK

    E-print Network

    MacLean, Karon

    ENVIRONMENTS Karon E. MacLean Interval Research Corporation 1801 Page Mill Road Palo Alto, CA 940304, USA ned for successively higher-order parameters by application of appropriately chosen position trajectories. A one degree-of-freedom linear-acting motor with 90 mm stroke, a peak force of 60 N and equipped

  7. Interspecific adaptation by binary choice at de novo polyomavirus T antigen site through accelerated codon-constrained Val-Ala toggling within an intrinsically disordered region.

    PubMed

    Lauber, Chris; Kazem, Siamaque; Kravchenko, Alexander A; Feltkamp, Mariet C W; Gorbalenya, Alexander E

    2015-05-26

    It is common knowledge that conserved residues evolve slowly. We challenge generality of this central tenet of molecular biology by describing the fast evolution of a conserved nucleotide position that is located in the overlap of two open reading frames (ORFs) of polyomaviruses. The de novo ORF is expressed through either the ALTO protein or the Middle T antigen (MT/ALTO), while the ancestral ORF encodes the N-terminal domain of helicase-containing Large T (LT) antigen. In the latter domain the conserved Cys codon of the LXCXE pRB-binding motif constrains codon evolution in the overlapping MT/ALTO ORF to a binary choice between Val and Ala codons, termed here as codon-constrained Val-Ala (COCO-VA) toggling. We found the rate of COCO-VA toggling to approach the speciation rate and to be significantly accelerated compared to the baseline rate of chance substitution in a large monophyletic lineage including all viruses encoding MT/ALTO and three others. Importantly, the COCO-VA site is located in a short linear motif (SLiM) of an intrinsically disordered region, a typical characteristic of adaptive responders. These findings provide evidence that the COCO-VA toggling is under positive selection in many polyomaviruses, implying its critical role in interspecific adaptation, which is unprecedented for conserved residues. PMID:25904630

  8. ISSN 0103-9741 Monografias em Cincia da Computao

    E-print Network

    Endler, Markus

    no modelo utilizado pelos sistemas de software. Entretanto, se modelos de nível mais altos fossem adotadosPUC ISSN 0103-9741 Monografias em Ciência da Computação n° 03/10 Estudo sobre Modelos de/10 ISSN: 0103-9741 Editor: Prof. Carlos José Pereira de Lucena Abril, 2010 Estudo sobre Modelos de

  9. The Economics of Surfing Eytan Adar and Bernardo A. Huberman

    E-print Network

    Huberman, Bernardo A.

    1 The Economics of Surfing Eytan Adar and Bernardo A. Huberman Xerox Palo Alto Research Center Palo different and regular patterns of surfing. This difference can be exploited in order to benefit information providers. We propose mechanisms for implementing temporal discrimination in surfing by dynamically

  10. Design of Unimanual Multi-Finger Pie Menu Interaction Nikola Banovic1

    E-print Network

    Toronto, University of

    Dearman1, 2 , Koji Yatani1 , and Khai N. Truong1 1 Department of Computer Science University of Toronto Toronto, ON M5S 3G4, Canada {nikola, frankli, dearman, koji, khai}@dgp.toronto.edu 2 Nokia Research Center 955 Page Mill Rd. Palo Alto, CA 94304, USA david.dearman@nokia.com ABSTRACT Context menus, most

  11. CESPE/UnB/TRF-1. Regio Cargo: Juiz Federal Substituto 1

    E-print Network

    Maier, Rudolf Richard

    Brasília ­ DF, na SQS 210, Bloco A, ap. 102, considerando-o incurso, em concurso material (art. 69) no art. 312, § 1.º, c/c o art. 327, § 2.º, e art. 299, caput, todos do Código Penal (CP) brasileiro, com base terceiros, mediante fraude, valendo-se das facilidades propiciadas pelo alto cargo público que desempenhava

  12. VizieR Online Data Catalog: Radial velocities of 8 KOI eclipsing binaries (Lillo-Box+, 2015)

    NASA Astrophysics Data System (ADS)

    Lillo-Box, J.; Barrado, D.; Mancini, L.; Henning, T.; Figueira, P.; Ciceri, S.; Santos, N.

    2015-06-01

    We have obtained multi-epoch RV data for the 13 KOIs. We used the CAFE instrument mounted on the 2.2m telescope at Calar Alto Observatory (Almeria Spain) to obtain high-resolution spectra (R=59000-67000) in the optical range (4000-9000Å). (2 data files).

  13. Hints for computer system design

    Microsoft Academic Search

    Butler W. Larnpson

    1983-01-01

    Experience with the design and implementation of a number of computer systems, and study of many other systems, has led to some general hints for system design which are described here. They are illustrated by a number of examples, ranging from hardware such as the Alto and the Dorado to applications programs such as Bravo and Star.

  14. Hints for Computer System Design

    Microsoft Academic Search

    Butler W. Lampson

    1984-01-01

    Studying the design and implementation of a number of computer has led to some general hints for system design. They are described here and illustrated by many examples, ranging from hardware such as the Alto and the Dorado to application programs such as Bravo and Star.

  15. THE DESIGN OF A MAN-MACHINE COUNSELING SYSTEM. A PROFESSIONAL PAPER.

    ERIC Educational Resources Information Center

    COGSWELL, J.F.; AND OTHERS

    TWO PROJECTS ON THE DESIGN, DEVELOPMENT, IMPLEMENTATION, AND EVALUATION OF A MAN-MACHINE SYSTEM FOR COUNSELING IN THE PALO ALTO AND LOS ANGELES SCHOOL DISTRICTS ARE REPORTED. THE EARLIER PHILCO 2000 COMPUTER PROGRAMS SIMULATED A COUNSELOR'S WORK IN THE EDUCATIONAL PLANNING INTERVIEW BY ACCEPTING INPUTS SUCH AS SCHOOL GRADES, TEST SCORES, AND…

  16. Curriculum Vitae INFORMAZIONI PERSONALI Martina Deturres

    E-print Network

    Di Pillo, Gianni

    FORMAZIONE febbraio 2010 ­ marzo 2013 Laureato Magistrale in Intelligenza Artificiale e Robotica "Sapienza" Università di Roma, Roma (Italia) Intelligenza Artificiale, Robotica, Robotica Mobile, Visione e Perfezione Automatico, Pianificazione interazione di azioni ad alto livello, Robotica 18 giugno 2012 ­ 24 giugno 2012

  17. ARBORETUM RD VINEYARD LN

    E-print Network

    Jordan Quad Arrillaga Family Sports Center Sunken Diamond MaplesMem Aud. Alumni Center Bing Concert Hall Hoover Tower Cantor Arts Center Knight Mgmt.Ctr. Visitor Center Y2E2 Parking & Transportation Services (P&TS) Montag Hall Stanford Hospital School of Medicine Stanford Shopping Center Downtown Palo Alto Lytton Plaza

  18. Protection 1 Protection1

    E-print Network

    Lampson, Butler W.

    Protection 1 Protection1 Butler W. Lampson Xerox Corporation Palo Alto, California Abstract Abstract models are given which reflect the properties of most existing mechanisms for enforcing protection are explicated in terms of the model and implementations. Introduction `Protection'is a general term for all

  19. Protection 1 Protection 1

    E-print Network

    Lampson, Butler W.

    Protection 1 Protection 1 Butler W. Lampson Xerox Corporation Palo Alto, California Abstract Abstract models are given which reflect the properties of most existing mechanisms for enforcing protection are explicated in terms of the model and implementations. Introduction `Protection'is a general term for all

  20. House Painting with NCS in the USA1 Giordano Beretta & Yoko Nonaka

    E-print Network

    Beretta, Giordano

    House Painting with NCS in the USA1 Giordano Beretta & Yoko Nonaka 1760 Newell Road Palo Alto, CA dimensions. Since the second edition of the Natural Color System (NCS) atlas had recently become available this system. Contrary to some other countries, here in the USA paint manufacturers do not use NCS to specify

  1. Sergio Arrau, el dramaturgo ignorado

    E-print Network

    Bravo-Elizondo, Pedro

    1989-10-01

    las Américas por Una casa en Lota Alto en 1973. Nota del entrevistador). El Taller ART, sigla de los apellidos de sus integrantes, se mantuvo por fructíferos cinco años, hasta poco antes del golpe militar, que nos desperdigó a los tres por distintos...

  2. Construcción de identidades en la dramatización de la realidad chilena

    E-print Network

    Hurtado, Marí a de la Luz

    2000-10-01

    ; campesinos en Los que van quedando en el camino, I. Aguirre, 1969; obreros textiles en Tela de cebolla, G. Cordero, 1972; mineros del carbón en Una casa en Lota Alto, Víctor Torres, 1973. Las identidades están construidas socialmente y tienen vínculos...

  3. Sobre Como Varian las Firmas Manuscritas con el Tiempo: una Modelizacion Sigma Lognormal

    E-print Network

    Autonoma de Madrid, Universidad

    de edad basado en los par´ametros del modelo. 1 Introducci´on Como en cualquier nuevo ´area de- conocimiento, con el objetivo de conseguir menores tasas de error. Como conse- cuencia, se han pasado por alto nueva aproximaci´on para el estudio de firmas pertenecientes a grupos de edades dis- tintas. #12;La

  4. IFAS FACULTY ASSEMBLY DRAFT MINUTES

    E-print Network

    Jawitz, James W.

    intensive review of blueprint for shared services o Will give report next meeting PWC ­ GENE MCAVOY to consider lengthening in tenure process from 6 to 7 years o For research appointments, five years (for 6th Florida Medical Entomology Lab: Barry Alto Food & Resource Economics: Zhifeng Gao Food Science & Human

  5. IFAS FACULTY ASSEMBLY MEETING MINUTES

    E-print Network

    Jawitz, James W.

    . · Represents research, teaching, and extension · 8 members o Four members elected by FA o Four appointed by SVP in June 2012 7 revisions o Fifield and McCarty Hall hubs o Shared governance matrix · Moved to approve Cantrell Florida Medical Entomology Lab: Barry Alto Food & Resource Economics: Zhifeng Gao Food Science

  6. Performance Monitoring of Service-Level Agreements for Utility Computing Using the Event Calculus

    E-print Network

    Sergot, Marek

    . {adf02, mjs}@doc.ic.ac.uk Mathias Salle, Claudio Bartolini, HP Labs, Palo Alto, California, USA to be distinguished from such approaches in that: (i) It has been developed in the context of a `real), a description of the contract tracking ontology, developed in this work, and its semantics are given. The paper

  7. Autonomous Robots in SWAT Applications: Research, Design, and Operations Challenges

    E-print Network

    Autonomous Robots in SWAT Applications: Research, Design, and Operations Challenges Mr. Henry L), the Palo Alto ­ Mountain View (California) Regional Special Weapons and Tactics (SWAT) team, and the MLB Company to bridge the gap between the perception of potential uses of autonomous robots in police SWAT

  8. Autonomous Robots in SWAT Applications: Research, Design, and Operations Challenges

    Microsoft Academic Search

    Henry L Jones; Steve Morris

    This paper describes the efforts of Stanford University's Aerospace Robotics Laboratory (ARL), the Palo Alto - Mountain View (California) Regional Special Weapons and Tactics (SWAT) team, and the MLB Company to bridge the gap between the perception of potential uses of autonomous robots in police SWAT environments and the reality of their application. The ARL researchers were given freedom of

  9. WATER RECLAMATION AND AUTOMATED WATER QUALITY MONITORING

    EPA Science Inventory

    The Santa Clara Valley Water District owns and operates a water reclamation facility located in the Palo Alto Baylands area in Northern California. The purpose of the facility is to provide reclaimed water suitable for injection into the groundwater, thereby providing a salt wate...

  10. RAMBO for Dummies Jeannie R. Albrecht1

    E-print Network

    Albrecht, Jeannie

    RAMBO for Dummies Jeannie R. Albrecht1 , Yasushi Saito Internet Systems and Storage Laboratory HP Laboratories Palo Alto HPL-2005-39 February 24, 2005* RAMBO, consensus, distributed computing RAMBO and RAMBO joining and leaving the system dynamically. This report tries to describe RAMBO and RAMBO II to people

  11. EDUCACIÓN AMBIENTAL EN ARGENTINA. POTENCIALIDADES COMO HERRAMIENTA DE DESARROLLO SOSTENIBLE DE LAS PESQUERÍAS DEL RÍO PARANÁ

    Microsoft Academic Search

    Trilce Irupé Castillo

    2012-01-01

    La educación ambiental en Argentina consiste programas de educación en el ámbito formal, centrándose generalmente en la sensibilización y concientización. La educación ambiental no formal es más difícil de implementar por falta de estructuras administrativas apropiadas y personal capacitado, pero presenta un alto potencial de aplicación en las pesquerías artesanales del río Paraná en Argentina. La implementación de estrategias educativas

  12. A Human-Curated Annotation of the Candida albicans Genome

    E-print Network

    Ford, James

    Francisco, California, United States of America, 2 Biotechnology Research Institute, National Research Francisco, California, United States of America, 5 The Sanger Centre, Cambridge, United Kingdom, 6 University School of Medicine, Palo Alto, California, United States of America, 15 Department of Molecular

  13. BOOK REVIEWS CURRENT SCIENCE, VOL. 91, NO. 7, 10 OCTOBER 2006 969

    E-print Network

    Borges, Renee M

    BOOK REVIEWS CURRENT SCIENCE, VOL. 91, NO. 7, 10 OCTOBER 2006 969 Annual Review of Entomology, Vol Alto, California 94306, USA. 2006. 739 pp. Price: US $80. Reading a 700-page book from cover to cover in this book, made me dip in again and again, without regret, each time emerging refreshed. I quote from Felix

  14. ENSINO SUPERIOR MEDIDA APLICA-SE NO PRXIMO ANO LETIVO 428 cursos tm

    E-print Network

    Instituto de Sistemas e Robotica

    ENSINO SUPERIOR ¦ MEDIDA APLICA-SE NO PRÓXIMO ANO LETIVO 428 cursos têm de manter vagas ¦ Desemprego alto entre diplomados impede aumento de vagas em 41 por cento dos cursos ·BERNARDO ESTEVES Quase de vagas. A maioria dos 428 cursos afetados pertencem às áreas das ciências sociais e das letras, com

  15. Automatic Synthesis of Electrical Circuits Containing a Free Variable Using Genetic Programming

    E-print Network

    Fernandez, Thomas

    John R. Koza Stanford University Los Altos, CA 94023 koza@stanford.edu Martin A. Keane Econometrics Inc a high-level statement of the circuit's desired behavior and characteristics (Koza, Bennett, Andre, and Keane 1999; Koza, Bennett, Andre, Keane, and Brave 1999). However, all of the previously reported

  16. Genetic Programming as a Darwinian Invention Machine John R. Koza

    E-print Network

    Fernandez, Thomas

    Genetic Programming as a Darwinian Invention Machine John R. Koza Section on Medical Informatics://www.smi.stanford.edu/people/koza/ Forrest H Bennett III Genetic Programming Inc. Los Altos, California 94023 forrest@evolute.com Oscar structures (Koza, Bennett, Andre,

  17. Evolution by Means of Genetic Programming of Analog Circuits that Perform Digital Functions

    E-print Network

    Fernandez, Thomas

    H Bennett III Genetic Programming Inc. Box 1669 Los Altos, California 94023 forrest@evolute.com http://www.genetic-programming.com John R. Koza Section on Medical Informatics Department of Medicine Stanford University Stanford is capable of synthesizing the design of certain analog electrical circuits (Koza, Bennett, Andre, Keane

  18. Evolution by Means of Genetic Programming of Analog Circuits that Perform Digital Functions

    E-print Network

    Fernandez, Thomas

    H Bennett III Genetic Programming Inc. Box 1669 Los Altos, California 94023 forrest@evolute.com http://www.genetic­programming.com John R. Koza Section on Medical Informatics Department of Medicine Stanford University Stanford is capable of synthesizing the design of certain analog electrical circuits (Koza, Bennett, Andre, Keane

  19. Detection of DNA mutations associated with mitochondrial diseases by Agilent 2100 bioanalyzer

    Microsoft Academic Search

    Ching-You Lu; Dan-Ju Tso; Tom Yang; Yuh-Jyh Jong; Yau-Huei Wei

    2002-01-01

    Background: Molecular analysis of mitochondrial DNA (mtDNA) has provided a final diagnosis for many of the mitochondrial diseases. We evaluated the Agilent 2100 bioanalyzer (Agilent Technologies, Palo Alto, CA) to determine whether the system could replace the conventional restriction fragment length polymorphism (RFLP) analysis by the agarose gel electrophoresis for the detection of the mtDNA mutation. Methods: Three members of

  20. Veri cation Techniques for LOTOS U. Martin, University of St. Andrews, Scotland, U.K.

    E-print Network

    Calder, Muffy

    of the veri cation and validation requirements which were considered in the project. Software de- velopment including: { A medical informationbus, in collaboration with Royal Free Hospital School of Medicine. { A control device for a radiation machine, carried out in collaboration with DEC/SRC Palo Alto. { A secure

  1. Introducing wearable force sensors in martial arts

    Microsoft Academic Search

    E. H. Chi

    2005-01-01

    In a collaborative effort, the Stanford Taekwondo Program, the Palo Alto Research Center, and Impact Measurement recently developed and introduced sensor technology for the unforgiving environment of the martial arts sparring ring. Our system, called SensorHogu, uses piezoelectric force sensors on body protectors to help Taekwondo judges and referees score tournament matches. We have two objectives for the technology: it

  2. MACAW: A Media Access Protocol for Wireless LAN's

    Microsoft Academic Search

    Vaduvur Bharghavan; Alan J. Demers; Scott Shenker; Lixia Zhang

    1994-01-01

    In recent years, a wide variety of mobile computing devices has emerged, including portables, palmtops, and personal digit al assistants. Providing adequate network connectivity y for these devices will require a new generation of wireless LAN technology. In this paper we study media access pro- tocols for a single channel wireless LAN being developed at Xerox Corporation's Palo Alto Research

  3. Crecimiento y Progreso Social en Chile

    Microsoft Academic Search

    Jorge Rodriguez Grossi; Eduardo Saavedra

    2008-01-01

    Este trabajo describe la evolución reciente de los principales indicadores económicos para Chile y las reformas implementadas que largamente explican el desarrollo del país en las décadas recientes. Se muestra que Chile, de acuerdo a su crecimiento y situación social, puede clasificarse como un país con un alto crecimiento (para el concierto Latinoamericano), con fuerte impacto en reducir la pobreza

  4. Perceptual integration of kinematic components for the recognition of emotional facial expressions

    E-print Network

    control (Flash and Hochner 2005; Chiovetto and Giese, 2013) as well as in the study of the perception facial expressions, where the motion was parameterized exploiting a 3D facial animation system (Curio et and Friesen W. Consulting Psychologists Press, Palo Alto, 1978. Flash T, Hochner B. Curr Opin Neurobiol 2005

  5. 358 nature genetics volume 26 november 2000 Y chromosome sequence variation and the history of

    E-print Network

    Kidd, Kenneth

    and Technology Center, Palo Alto, California, USA. 3University of Texas-Houston, Human Genetics Center, Houston, Texas, USA. 4Sackler Faculty of Medicine, Human Genetics, Tel-Aviv University, Tel-Aviv, Israel. 5Unitat Haven, Connecticut, USA. 10Dr. A. Q. Khan Research Laboratories, Biomedical & Genetic Engineering

  6. Combining photogrammetry and laser scanning for the recording and modelling of the Late Intermediate Period site of

    E-print Network

    for archaeological analysis. Ó 2006 Elsevier Ltd. All rights reserved. Keywords: 3D modelling; Laser scanning This paper describes the 3D modelling of Pinchango Alto, Peru, based on a combination of image and range data and a terrestrial laser scanner, both equipped with a camera, allowed a fast yet accurate recording of the site

  7. AUTOEVALUACION DEL NIVEL DE CONOCIMIENTOS IMPORTANTES PARA LA OPCION EN DISEO ELECTRONICO

    E-print Network

    alto nivel ¿Cual? #12;2 Fisica de Dispositivos 0 1 2 3 4 5 Conceptos de Mecanica Cuantica Conceptos de en CMOS Familiarizacion con Math Lab #12;3 Teoria Electromagnetica 0 1 2 3 4 5 Ecuaciones de Maxwell en Frecuencia Teorema de Muestreo Familiarizacion con Math Lab Telecomunicaciones 0 1 2 3 4 5 Teoria

  8. Institute offers advanced study of atmospheres

    Microsoft Academic Search

    Anonymous

    1974-01-01

    Scientists from five European countries, England, Canada, and the United States have organized a Summer Advanced Institute on Physics and Chemistry of Atmospheres to be held July 29August, 9, 1974, at the University of Lige, Belgium. The institute is sponsored by the Office of Naval Research, the Defense Nuclear Agency, and Lockheed Palo Alto Research Laboratory.The purpose of the institute

  9. A Spring in their Steps? Possibilities for Professional Renewal through Sport Education in Australian Schools

    Microsoft Academic Search

    Ken Alexander; Andrew Taggart; Stephen Thorpe

    1996-01-01

    We report on three projects and an accompanying critical research agenda designed to establish and evaluate a new pedagogy in Australian physical education based on the sport education curriculum model first published by Siedentop et al. [Siedentop, D., Mand, C. & Taggart, A. (1986) Physical Education: Teaching and Curriculum Strategies for Grades 5?12 (Palo Alto, Mayfield]. The projects, involving over

  10. The geology and petrology of Volcán San Juan (Nayarit, México) and the compositionally zoned Tepic Pumice

    Microsoft Academic Search

    James F Luhr

    2000-01-01

    Volcán San Juan is the westernmost Quaternary composite volcano in the Mexican Volcanic Belt. Its activity is divided into three stages of decreasing eruptive volume. During stage-1 activity, the main cone of San Juan and the adjacent Cerro Alto grew to a combined volume of ?60 km3 through eruption of hornblende-bearing andesites, dacites, and rhyodacites. Stage 1 included explosive eruptions

  11. Nuclear Medicine CT Angiography

    E-print Network

    Ford, James

    rotation is based at the Palo Alto VA Medical Center and gives the cardiology fellow experience. 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

  12. Published online 12 August 2003 Modelling cartilage mechanobiology

    E-print Network

    Stanford University

    the coordination of the apical endothelial ridge and the zone of polarizing activity where fibroblast growth factor System, Palo Alto, CA 94304, USA 3 Institute for Biomedical Engineering, ETH, Gloriastrasse 35, 8092 molecules and embry- onic growth factors. The limb buds develop at discrete locations that coincide

  13. Choosing and Using Insect Repellents (Spanish) 

    E-print Network

    Schoessow, Courtney

    2007-10-08

    contienen DEET. Cuando elija un repelente, opte por uno que ofrezca protecci?n adecuada para el periodo de tiempo que estar? afuera. Si lo har? por varias horas, elija un producto que contenga un porcentaje m?s alto de DEET. Si estar? afuera poco tiempo...

  14. Study of plasmasphere dynamics using incoherent scatter data from Chatanika, Alaska radar facility

    NASA Technical Reports Server (NTRS)

    Shelley, E. G.

    1975-01-01

    Results of the study of Chatanika incoherent scatter radar data and Lockheed Palo Alto Research Laboratory satellite data are reported. Specific topics covered include: determination of the effective recombination coefficient in the auroral E region; determination of the location of the auroral oval; auroral boundary characteristics; and the relationship of auroral current systems, particle precipitation, visual aurora, and radar aurora.

  15. A Framework for an On-Demand Measurement Service Ethan Blanton, Sonia Fahmy, Sujata Banerjee

    E-print Network

    Fahmy, Sonia

    A Framework for an On-Demand Measurement Service Ethan Blanton, Sonia Fahmy, Sujata Banerjee infras- tructure in a safe fashion. We define network measure- Ethan Blanton and Sonia Fahmy, fahmy}@cs.purdue.edu. Sujata Banerjee is with Hewlett-Packard Labs, 1501 Page Mill Rd., Palo Alto, CA

  16. New CE Faculty Information: Welcome! Who's Who in the Department of Psychiatry & Behavioral Sciences

    E-print Network

    Puglisi, Joseph

    New CE Faculty Information: Welcome! Who's Who in the Department of Psychiatry & Behavioral Mignot, M.D. VA Palo Alto Health Care System Jerome Yesavage, M.D. Director of Finance and Administration (DFA): finances (grants, salary, reimbursements), housing or administrative issues Brian Donnellan, DFA

  17. New Instructor Information: Welcome! Who's Who in the Department of Psychiatry & Behavioral Sciences

    E-print Network

    Puglisi, Joseph

    New Instructor Information: Welcome! Who's Who in the Department of Psychiatry & Behavioral Mignot, M.D. VA Palo Alto Health Care System Jerome Yesavage, M.D. Director of Finance and Administration (DFA): finances (grants, salary, reimbursements), housing or administrative issues Brian Donnellan, DFA

  18. A Profound Development in Education.

    ERIC Educational Resources Information Center

    American School Board Journal, 1983

    1983-01-01

    In February 1983, Mountain View-Los Altos Union High School District in California's Silicon Valley will link its school computer to privately owned microcomputers in students' homes. Funded by a $75,000 grant from the Atari Foundation, the link will initially help students to match their school records with college admissions requirements. (RW)

  19. Modeling A Scalable High-Speed Interconnect with Stochastic Petri Nets

    E-print Network

    Ciardo, Gianfranco

    Modeling A Scalable High-Speed Interconnect with Stochastic Petri Nets Gianfranco Ciardo Lucy of William and Mary, 1501 Page Mill Road Williamsburg, VA 23187-8795, USA Palo Alto, CA 94303, USA ciardo of various parameters, including This research was initiated while G. Ciardo was visiting Hewlett- Packard

  20. Role of Aging, Frequency, and Size in Web Cache Replacement Policies

    E-print Network

    Ciardo, Gianfranco

    and Gianfranco Ciardo2 1 Hewlett-Packard Labs, 1501 Page Mill Road, Palo Alto, CA 94303, USA cherkasova@hpl.hp.com 2 CS Dept., College of William and Mary, Williamsburg, VA 23187-8795, USA ciardo@cs.wm.edu Abstract

  1. Peru: Illegal Mahogany Logging Continues in Reserve for Uncontacted Tribes Widespread illegal mahogany logging continues inside Peru's Muruanahua Territorial Reserve

    E-print Network

    agreement with the U.S. Moreover, the logging violates the Convention on International Trade in Endangered Species (CITES), under which mahogany is listed. The investigation included river patrols and overflights in the headwaters of the Mapuya River near the border of the Alto Purús National Park (see Photo A). Originally

  2. Regional Risk Assessment of a Brazilian Rain Forest Reserve

    Microsoft Academic Search

    Rosana Moraes; Wayne G. Landis; Sverker Molander

    2002-01-01

    The objective of this study was to identify subareas inside and near an Atlantic Rain Forest reserve, the Parque Estadual Turístico do Alto Ribeira (PETAR), most likely to be affected by land use in the vicinity of the area. In addition, the study aimed to compare risks per stressor source (agriculture, human settlements and mining) to both epigean (surface) and

  3. Butterfly diversity and human land use: Species assemblages along an urban grandient

    Microsoft Academic Search

    Robert B. Blair; Alan E. Launer

    1997-01-01

    We examined the distribution and abundance of butterfly species across an urban gradient and concomitant changes in community structure by censusing the butterfly and skipper populations at 48 points within six sites near Palo Alto, California, USA (all former oak woodlands). These sites represent a gradient of urban land use running from relatively undisturbed to highly developed and include a

  4. Support for a Link between the Local Processing Bias and Social Deficits in Autism: An Investigation of Embedded Figures Test Performance in Non-Clinical Individuals

    ERIC Educational Resources Information Center

    Russell-Smith, Suzanna N.; Maybery, Murray T.; Bayliss, Donna M.; Sng, Adelln A. H.

    2012-01-01

    The aim of this investigation was to explore the degree to which specific subsets of autistic-like traits relate to performance on the Embedded Figures Test (Witkin et al. in A manual for the embedded figures test. Consulting Psychologists Press, Palo Alto, CA, 1971). In the first group-based investigation with this focus, students were selected…

  5. ESTRESSE, ASPECTOS PSICOSSOCIAIS DO TRABALHO E DISTÚRBIOS MUSCULOESQUELÉTICOS EM TRABALHADORES DE ENFERMAGEM STRESS, PSYCHOSOCIAL ASPECTS OF THE WORK AND MUSCULOSKELETAL DISORDERS IN NURSING WORKERS ESTRÉS, ASPECTOS PSICOSOCIALES DEL TRABAJO Y DISTURBIOS MUSCULOESQUELÉTICOS EN TRABAJADORES DE ENFERMERÍA

    Microsoft Academic Search

    Tânia Solange; Bosi de Souza; Rosane Harter

    RESUMO: RESUMO: RESUMO: RESUMO: RESUMO: A enfermagem é reconhecida como uma das ocupações com alto risco de estresse e adoecimento. Os distúrbios musculoesqueléticos ganham proporção cada vez maior entre esses profissionais. Este estudo tem como objetivo apresentar algumas proposições sobre a relação do estresse e dos fatores psicossociais do trabalho na ocorrên- cia de distúrbio musculoesquelético e caracterizar o Modelo

  6. Lotung downhole array. 1: Evaluation of site dynamic properties

    Microsoft Academic Search

    A.-W. Elgamal; M. Zeghal; H. T. Tang; J. C. Stepp

    1995-01-01

    The Lotung large-scale seismic test (LSST) site in Taiwan was instrumented in 1985 with an array of downhole and surface accelerometers, by the Electric Power Research Institute (EPRI), Palo Alto, California, and the Taiwan Power Company (TPC), Taipei, Taiwan. A total of 18 earthquakes were recorded during the period 1985--86. Correlation and spectral analyses of the recorded downhole accelerations are

  7. Thioredoxin 2, an Oxidative Stress-induced Protein, Contains a High Affinity Zinc Binding Site*

    E-print Network

    Bardwell, James

    in Escherichia coli, TrxA and Trx2. Both thioredoxins are capable of reducing disulfide bonds using a conserved conserves its reductase activity. Alto- gether, our results suggest that the zinc center might play the role and possess a conserved WCGPC catalytic motif. The main function of thioredoxins is to reduce disulfide bonds

  8. Avaliao de Desempenho, rea e Potncia de Mecanismos de Comunicao em Sistemas Embarcados

    E-print Network

    Wagner, Flávio Rech

    sistema operacional de tempo real (RTOS) [Burns 1997], que fornece, pelo menos, serviços de comunicação e (aplicações e RTOS), é ideal que a exploração do espaço de projeto seja feita no nível de abstração mais alto que serão fornecidos pelo RTOS. O n

  9. ANÁLISE SÓCIOECONÔMICA DOS AGROSILVICULTORES DO PROJETO DE REFLORESTAMENTO ECONÔMICO CONSORCIADO E ADENSADO (RECA), EM NOVA CALIFÓRNIA, RONDÔNIA

    Microsoft Academic Search

    Idesio Luis Franke; Isabel Teresa Gama Alves; Claudenor Pinho De Sa; Jair Carvalho Dos Santos; Judson Ferreira Valentim

    2008-01-01

    O assentamento agrícola de centenas de milhares de famílias na Amazônia gerou problemas ambientais e socioeconômicos significativos na região. Em 1984 foi implantado pelo Instituto nacional de Colonização e Reforma Agrária (INCRA) o Projeto de Assentamento Agrícola do Alto Madeira, em Vila Nova Califórnia-RO, divisa com o Estado do Acre. A partir de 1988, algumas lideranças rurais e produtores do

  10. Preguntas y respuestas acerca del Estudio del Tamoxifeno y Raloxifeno (STAR)

    Cancer.gov

    El Estudio del Tamoxifeno y Raloxifeno (STAR, por sus siglas en inglés) es un estudio clínico (un estudio de i nvestigación conducido con voluntarios) diseñado para ver cómo el medicamento raloxifeno (Evista) se compara con el medicamento tamoxifeno (Nolvadex) en reducir la incidencia de cáncer del seno en las mujeres con alto riesgo de desarrollar la enfermedad.

  11. Evaluation of Adjustment Environmental Contract to Pig Production in Pinhal River Sub-Basin

    Technology Transfer Automated Retrieval System (TEKTRAN)

    In 2001, staff and scientists of Embrapa Swine and Poultry Research Center carried out a diagnosis in Alto Uruguai Basin on the number of pig producers with environmental permit. At that time, 95% of farms did not have permission and only 5% of these farms had the proper permission to operate. Becau...

  12. Icon Abacus: Positional Display of Document Attributes Eric A. Bier

    E-print Network

    Libraries ­ user issues. General Terms Algorithms, Design, Human Factors. Figure 1. Icon abacus with fourIcon Abacus: Positional Display of Document Attributes Eric A. Bier Palo Alto Research Center, Inc This paper presents icon abacus, a space-efficient technique for displaying document attributes by automatic

  13. Ley 45/2007, de 13Ley 45/2007, de 13 dede Diciembre,Diciembre, PARA EL DESARROLLO SOSTENIBLE DEL MEDIO RURALPARA EL DESARROLLO SOSTENIBLE DEL MEDIO RURAL

    E-print Network

    Rey Benayas, José María

    importantes ­ Atraso económico y social relativo y evitable · La Unión Europea ante el desarrollo rural sanidad, educación y seguridad 4. Tomar en consideración la protección social 5. Lograr alto nivel en la calidad ambiental: patrimonio, paisaje ... 6. Facilitar acceso a la vivienda y una ordenación territorial

  14. AHORRO DE ENERGÍA Y DISMINUCIÓN DE CO 2, EN UNA VIVIENDA DE INTERÉS SOCIAL AL EMPLEAR UN SISTEMA DE DESCARGA DE CALOR EN MUROS

    Microsoft Academic Search

    Víctor Hugo; Hernández Gómez; José Luis Fernández Zayas; David Morillón Gálvez; Juan Contreras Espinosa

    RESUMEN : Del sector edilicio, el área residencial continúa desarrollándose en forma no sustentable, siendo re sponsable de un alto porcentaje del consumo total de energéticos fósiles del país y contribuyendo al deterioro ambi ental global por la emisión de gases de invernadero. Para volverlo sust entable, existe la necesidad de revisión de los dis eños y las técnicas constructivas

  15. Precambrian Research 238 (2013) 1841 Contents lists available at ScienceDirect

    E-print Network

    2013-01-01

    and dioritic enclaves of the ca. 2130 Ma Alto Maranhão suite: Evidence for a major juvenile crustal addition Mantle wedge melting High-Mg tonalites and diorites Brazil a b s t r a c t Combined field observations and commingled dioritic mafic magmatic enclaves (MME), occupies an esti- mated area of >300 km2 in the southern

  16. Competing Interests

    ERIC Educational Resources Information Center

    Mendoza, Veronica

    2007-01-01

    Foothill College in Los Altos, California and DeAnza College in California are two community colleges that provide higher education for international students. These colleges' commitment to provide education for international students has recently caused a controversial debate among the residents of California. Not all California residents are in…

  17. International Ionospheric Effects Symposium, May 7-9, 2002, ed. J.M. Goodman, 364-371 1 Improved polar HF propagation

    E-print Network

    Michigan, University of

    Cameron, United Air Lines, Palo Alto, CA George Davenport, ARINC, Colorado Springs, CO John Goodman, Radio of the nowcast/forecast plasma drift velocities from the DICM electric circuit model. The electron densities- ties and incident charged particle fluxes significantly change ionospheric electron density distribu

  18. Trade-off of lossless source coding error exponents Cheng Chang Anant Sahai

    E-print Network

    Sahai, Anant

    Trade-off of lossless source coding error exponents Cheng Chang Anant Sahai HP Labs, Palo Alto EECS, UC Berkeley ISIT 2008 Chang (HP Labs), Sahai ( UC Berkeley) Error Exponents trade-off ISIT 2008 1 (HP Labs), Sahai ( UC Berkeley) Error Exponents trade-off ISIT 2008 2 / 14 #12;Stabilizing an unstable

  19. Drinking Water Problems: Iron and Manganese (Spanish) 

    E-print Network

    Dozier, Monty; McFarland, Mark L.

    2004-02-20

    ?nicos) debido a que pueden tapar el aspirador y el filtro. Oxidaci?n qu?mica Niveles altos de hierro y manganeso disuelto u oxi- dado (combinaciones combinadas de hasta 25 mg/L) pueden ser tratadas por oxidaci?n qu?mica. Este m?todo es particularmente de ayuda...

  20. The Baroque, the grotesque, and social criticism in the Buscon and La Hora de Todos of Quevedo: El Barroco, lo grotesco, y la critica social en el Buscon y La Hora de Todos de Quevedo 

    E-print Network

    Carrero, Norma I.

    1993-01-01

    atencidn reverente, Marte se levantd sonando a c ue de carps sartenes, y con ademanes de la carda dij o: ?;Pesia tu ltf ado oA rande coime ue isas el alto claro abre esa boca aria ue La hora ptesenta particularidades en el estilo que la distinguen corno...

  1. Selecting Colors for Representing VLSI Layout Giordano Bruno Beretta

    E-print Network

    Beretta, Giordano

    . Additional Keywords and Phrases: functional colors, IC layout, printing Xerox Corporation XEROX Palo AltoSelecting Colors for Representing VLSI Layout Giordano Bruno Beretta #12;#12;Selecting Colors for Representing VLSI Layout Giordano Bruno Beretta EDL·88·7 December 1988 [P88·00226j © Copyright 1988 Xerox

  2. Nuevos usos para el patrimonio arquitectónico industrial en Valladolid: completar equipamientos y generar valor

    Microsoft Academic Search

    Basilio Calderón Calderón

    2007-01-01

    El modelo de desarrollo urbanístico español de la segunda mitad del siglo XX provocó la pérdida de gran parte del patrimonio arquitectónico-industrial de las ciudades debido a la falta de conciencia de su valor patrimonial, la inadecuada legislación protectora, al alto valor estratégico de los emplazamientos y a la disponibilidad de otro tipo de contenedores socialmente mejor valorados –iglesias, palacios

  3. Advanced computational methods in lightning performance the EPRI Lightning Protection Design Workstation

    Microsoft Academic Search

    T. E. McDermott; V. J. Longo

    2000-01-01

    In 1992, EPRI (Palo Alto, CA) released a lightning performance simulator for overhead lines, called LPDW (Lightning Protection Design Workstation). The program is based on travelling wave simulation like EMTP, with customizations for lightning analysis, and with interfaces to lightning data collected by the National Lightning Detection Network. The code has been tailored for use by utility engineers, rather than

  4. SODA ASH TREATMENT OF NEUTRALIZED MINE DRAINAGE

    EPA Science Inventory

    Utilization of acid mine drainage (AMD) streams as a source of potable and industrial water has become a major goal of several proposed AMD treatment schemes. From among the various schemes available, the lime neutralization/soda ash softening process was selected for use at Alto...

  5. EVALUATION OF THE ANTIFUNGAL ACTIVITY BY PLANT EXTRACTS AGAINST Colletotrichum gloeosporioides PENZ Avaliação da atividade anti-fúngica de extratos vegetais contra Colletotrichum gloeosporioides Penz

    Microsoft Academic Search

    Polyanna Alves Silva; Denilson Ferreira Oliveira; Ney Robson; Taironi do Prado; Douglas Antônio de Carvalho; Gilvane Aparecida de Carvalho

    Aiming to develop more efficient and environmental friendly methods than those available to control Colletotrichum gloeosporioides Penz, which causes blister spot in coffee trees, a search for plants able to produce substances active against such pathogen was carried out. Thus, extracts of 48 plant species, collected at Alto Rio Grande region, in Minas Gerais, were prepared and submitted to in

  6. Journal of Social and Clinical Psychology, Vol. 32, No. 3, 2013, pp. 296-314 2013 Guilford Publications, Inc.

    E-print Network

    Gross, James J.

    University MARCEL O. BONN-MILLER National Center for PTSD & Center for Health Care Evaluation, VA Palo Alto with Posttraumatic Stress Dis- order (PTSD) over-utilize relatively ineffective emotion regulation strategies use and PTSD symptom severity among military veterans in residential treatment for PTSD, we found that

  7. MODEL FOR AN ASSESSOR BIOGRAPHICAL SKETCH* Title + First Name + Middle Name + Last Name (printed by NIS)

    E-print Network

    was assigned to special projects for management on implementation of quality management systems to perform the on-site assessment. Include experience in quality management, as well as experience in testing Ms. Doe was the Quality Assurance Manager with XYZ Communications, Inc., in Palo Alto CA, and Quality

  8. Can These Trees Be Saved? (Spanish)

    E-print Network

    Taylor, Eric; Foster, C. Darwin

    2007-10-08

    encuentra en el lugar equivocado (tal como un ?rbol potencialmente alto debajo de cables el?ctricos) o es de una especie no deseada para la propiedad (?rbol de frutas que caen, etc.), podr?a ser mejor retirarlo si ha sufrido da?os graves. Luego, tome...

  9. SOFT X-RAY OBSERVATION OF A LARGE-SCALE CORONAL WAVE AND ITS EXCITER

    E-print Network

    California at Berkeley, University of

    , Dorking, Surrey, RH5 6NT, U.K. 3Lockheed Martin Palo Alto Research Laboratory, U.S.A. 4Science University-scale shock waves can accompany a solar flare: the meter-wave type II burst (e.g., Wild, Smerd, and Weiss

  10. THE TEACHER'S HANDBOOK, CHINESE-MANDARIN MATERIALS, LEVELS I-IV.

    ERIC Educational Resources Information Center

    HSU, KAI-YU; AND OTHERS

    THIS TEACHER'S GUIDE EXPLAINS THE ORGANIZATION OF THE AUTHORS' RECENT CHINESE-MANDARIN MATERIALS PUBLISHED IN FOUR VOLUMES BY THE ALTOAN PRESS OF PALO ALTO, CALIFORNIA. THESE MATERIALS WERE WRITTEN FOR HIGH SCHOOL STUDENTS IN THE 9TH TO 12TH GRADES AND ARE PLANNED ACCORDING TO THE MASTER CURRICULUM OF THE ADVISORY COMMITTEE ON CHINESE LANGUAGE…

  11. Early Function Points: esperienze pratiche di utilizzo

    Microsoft Academic Search

    Luca Santillo; Roberto Meli

    2000-01-01

    In conseguenza dell'ampio utilizzo della metrica dei Function Points nel campo del software management, si riscontra una crescente esigenza di metodi per stimare, in un momento alto del ciclo di vita del software, il valore in Function Points di una applicazione software. Questo lavoro descrive come utilizzare il metodo degli Early Function Points (presentato a IFPUG 97, Scottsdale, Settembre 97)

  12. R170 Discussion Cases and Questions: Week-By-Week listing of questions and cases for discussion sections. Please read these prior to your section each week.

    E-print Network

    Indiana University

    with the twins, Mr. Barton said. Ms. Barton, who was 36, postponed the bone-marrow transplant to protect the fetuses. The chemotherapy she underwent during the pregnancy stabilized her white blood cell count to Stanford University Medical Center in Palo Alto, Calif., and had full-body radiation before the transplant

  13. Echinococcus multilocularis in red foxes ( Vulpes vulpes) of the Italian Alpine region: is there a focus of autochthonous transmission?

    Microsoft Academic Search

    A. Casulli; M. T. Manfredi; G. La Rosa; A. R. Di Cerbo; A. Dinkel; T. Romig; P. Deplazes; C. Genchi; E. Pozio

    2005-01-01

    Alveolar echinococcosis, caused by the metacestode of Echinococcus multilocularis, is a zoonosis with a wider distribution area than described in the past. Fox populations living in the Alpine regions of Italy had been considered free from this parasite until 2002, when two infected foxes (Vulpes vulpes) were detected in the Bolzano province (Trentino Alto Adige region) near the Austrian border.

  14. This article was downloaded by: [University of Toronto Libraries] On: 11 November 2011, At: 07:05

    E-print Network

    Fox, Mark S.

    originating from an SAP ERP system using the PSL Ontology (ISO 18629) for representing processes and time for the SAP data model and show an example of translating data from an SAP ERP system into PSL axioms of Toronto, Toronto, Ontario, Canada c SAP Research, SAP Labs LLC, Palo Alto, CA, USA Available online: 18

  15. July 21, 2009 10:6 International Journal of Production Research gruninger-etal Combining RFID with Ontologies to Create Smart Objects

    E-print Network

    Grüninger, Michael

    . The idea is to store information originating from an SAP ERP system using the PSL Ontology (ISO 18629 an SAP ERP system into PSL axioms, and answering queries about a manufacturing process. Keywords: RFIDDepartment of Computer Science, University of Toronto, Toronto, Ontario, Canada; cSAP Research, SAP Labs LLC, Palo Alto

  16. Nanomechanical motion of Escherichia coli adhered to a surface C. Lissandrello,1,a)

    E-print Network

    Paul, Mark

    and for bacterial resistance to antibiotics.7,8,37 Consequently, the development of sensitive force and motion, Massachusetts 02215, USA 2 Demirci Bio-Acoustic-MEMS in Medicine (BAMM) Laboratory, Canary Center at Stanford for Cancer Early Detection, Stanford University School of Medicine, Palo Alto, California 94304, USA 3

  17. Knee joint loading in forward versus backward pedaling: implications for rehabilitation strategies

    E-print Network

    Knee joint loading in forward versus backward pedaling: implications for rehabilitation strategies R.R. Neptune a,*, S.A. Kautz a,b a Rehabilitation R & D Center (153), VA Palo Alto Health Care pedaling oers theoretical advantages over forward pedaling to rehabilitate common knee disorders. Design

  18. Lymphoma Steering Committee Roster

    Cancer.gov

    Co-chairs Ranjana Advani, M.D. Stanford University Medical Center Palo Alto, CA Thomas Witzig, M.D. Mayo Clinic Rochester, MN Members Stephen Ansell, M.D., Ph.D. Mayo Clinic Rochester, MN Catherine Bollard, M.D., Ph.D. Children's National Health System Bethesda,

  19. 1 O God wherefore art thou | absent from us so | long : why is thy wrath so | hot a gainst the | sheep of thy | pasture?

    E-print Network

    Lasenby, Joan

    Psalm 74 1 O God wherefore art thou | absent from · us so | long : why is thy wrath so | hot in their hearts Let us make havock of them | alto | gether : thus have they burnt up all the | houses · of | God that | under | standeth · any | more. 11 O God how long shall the adversary | do this · dis | honour : how

  20. Enrichment and Association of Bacteria and Particulates in Salt Marsh Surface Water

    PubMed Central

    Harvey, R. W.; Young, L. Y.

    1980-01-01

    Elevated counts of bacteria were found during outgoing tides in surface microlayers (?300 ?m) of Sippewissett salt marsh, Falmouth, Massachusetts, and Palo Alto salt marsh, Palo Alto, California. At both sampling sites, the degrees by which bacteria were concentrated into the surface microlayer were linearly dependent upon surface concentration of particulate material. A significant percentage of bacteria in the microlayer were found to be attached to particulate material, while bacterial populations in the subsurface water were largely planktonic. Proportions of the bacterial populations which could be grown on seawater nutrient agar were also greater in the microlayer than in the subsurface waters and were positively correlated with the fraction of bacteria attached to particulate matter. Data from these studies suggest that particulates in the microlayer waters of the salt marsh influenced the observed increase in both the readily grown and the total numbers of bacteria. PMID:16345554

  1. FIRST Quantum-(1980)-Computing DISCOVERY in Siegel-Rosen-Feynman-...A.-I. Neural-Networks: Artificial(ANN)/Biological(BNN) and Siegel FIRST Semantic-Web and Siegel FIRST ``Page''-``Brin'' ``PageRank'' PRE-Google Search-Engines!!!

    NASA Astrophysics Data System (ADS)

    Rosen, Charles; Siegel, Edward Carl-Ludwig; Feynman, Richard; Wunderman, Irwin; Smith, Adolph; Marinov, Vesco; Goldman, Jacob; Brine, Sergey; Poge, Larry; Schmidt, Erich; Young, Frederic; Goates-Bulmer, William-Steven; Lewis-Tsurakov-Altshuler, Thomas-Valerie-Genot; Ibm/Exxon Collaboration; Google/Uw Collaboration; Microsoft/Amazon Collaboration; Oracle/Sun Collaboration; Ostp/Dod/Dia/Nsa/W.-F./Boa/Ubs/Ub Collaboration

    2013-03-01

    Belew[Finding Out About, Cambridge(2000)] and separately full-decade pre-Page/Brin/Google FIRST Siegel-Rosen(Machine-Intelligence/Atherton)-Feynman-Smith-Marinov(Guzik Enterprises/Exxon-Enterprises/A.-I./Santa Clara)-Wunderman(H.-P.) [IBM Conf. on Computers and Mathematics, Stanford(1986); APS Mtgs.(1980s): Palo Alto/Santa Clara/San Francisco/...(1980s) MRS Spring-Mtgs.(1980s): Palo Alto/San Jose/San Francisco/...(1980-1992) FIRST quantum-computing via Bose-Einstein quantum-statistics(BEQS) Bose-Einstein CONDENSATION (BEC) in artificial-intelligence(A-I) artificial neural-networks(A-N-N) and biological neural-networks(B-N-N) and Siegel[J. Noncrystalline-Solids 40, 453(1980); Symp. on Fractals..., MRS Fall-Mtg., Boston(1989)-5-papers; Symp. on Scaling..., (1990); Symp. on Transport in Geometric-Constraint (1990)

  2. CARMENES science preparation: low--resolution spectroscopy of M dwarfs

    NASA Astrophysics Data System (ADS)

    Alonso-Floriano, F. J.; Montes, D.; Caballero, J. A.; Klutsch, A.; Mundt, R.; Córtes-Contreras, M.; Morales, J. C.; Quirrenbach, A.; Amado, P. J.; Reiners, A.; Ribas, I.

    2015-05-01

    CARMENES is the new optical/near-infrared spectrograph at Calar Alto observatory. The identification of the most promising targets for exoplanet hunting is a crucial first step to ensure an efficient use of the CARMENES guaranteed time. To achieve this, we obtained low-resolution (R ˜ 1500) spectra of 752 M (and late K) dwarfs, mostly fainter than J = 9 mag, using the CAFOS spectrograph of the 2.2 m telescope at Calar Alto observatory. We derived spectral types with 0.5 subtypes accuracy combining the spectral indices technique and the best-fit & ?^2 matches. We also studied metallicity and surface gravity through spectral indices, and activity from the pseudo-equivalent width of the H? line. We identified high-activity, low-metallicity and low-gravity stars, which should be discarded for exoplanet searches. Here we present preliminary results.

  3. Andrés Lizarraga (1919-1982)

    E-print Network

    Bravo-Elizondo, Pedro

    1982-10-01

    52 LATIN AMERICAN THEATRE REVIEW Andrés Lizarraga (1919-1982) El dramaturgo argentino, primer premio Casas de las Américas, Andrés Lizarraga, ha fallecido en Caracas, el 21 de mayo de 1982. Su nombre, para los estudiosos del teatro... latinoamericano, está íntimamente ligado con Santa Juana de América (1960) que con Tres jueces para un largo silencio y Alto Perú conforman su trilogía de la libertad o Trilogía de Mayo. Lizarraga estrenó varias piezas en los años que van desde la década de los...

  4. Report on \\

    Microsoft Academic Search

    Luke Oeding

    2008-01-01

    This is a technical report on the proceedings of the workshop held July 21 to\\u000aJuly 25, 2008 at the American Institute of Mathematics, Palo Alto, California,\\u000aorganized by Joseph Landsberg, Lek-Heng Lim, Jason Morton, and Jerzy Weyman. We\\u000ainclude a list of open problems coming from applications in 4 different areas:\\u000asignal processing, the Mulmuley-Sohoni approach to P vs.

  5. Overview of Lockheed Martin cryocoolers

    Microsoft Academic Search

    T. Nast; J. Olson; P. Champagne; B. Evtimov; D. Frank; E. Roth; T. Renna

    2006-01-01

    Lockheed Martin’s Advanced Technology Center (LM-ATC) in Palo Alto, California, has been active in space cryogenic developments for over 30 years. In prior years, work focused on stored cryogen systems for temperatures up to 125K. As the mechanical cryocoolers matured and demonstrated reliable operation these stored cryogen systems gradually became replaced. LM-ATC is currently developing solid hydrogen systems for temperatures

  6. 1906 Earthquake Scenario: San Francisco Bay Area

    NSDL National Science Digital Library

    This map shows estimated Modified Mercalli Intensity (MMI) values for the City of San Francisco and the eight counties of the Greater Bay Area, in a scenario based on the 1906 earthquake along the San Andreas fault. The 430 kilometers of fault rupture included several segments during one massive earthquake. Links are supplied to more detailed maps of the cities of Rohnert Park, Pittsburg, Antioch, San Francisco, and Palo Alto.

  7. Voices from the Small Cinemas: Beyond “the Remaining Countries”

    E-print Network

    Falicov, Tamara L.; Middents, Jeffrey

    2012-11-01

    political will by the Morales government. Nonetheless, the introduction of in less expensive digital technologies, coupled with an outcropping of new film schools both in the wealthy states as well as in the indigenous altos of Bolivia has given way to a...’s films made under producer Roger Corman, Spanish short film, and the racial complexities of the television show Buffy the Vampire Slayer. Address: Jeffrey Middents, Department of Literature, American University, Washington, DC 20016-8047. E...

  8. G7 G7Gm7 D7 9 G7E 7 9 D7 9 G7 G7Gm7 D7 9 G7E 7 9 D7 9

    E-print Network

    Brooks, Stephen

    of notes. He often launches into these sheets of sound with a rapid ascent that quickly trails off (8 in another sheet of sound (9). He peppers his solo with numer- ous rests, giving the listener's ear a chance L O D I C L A N D S C A P E S H A R M O N I C PA L E T T E S Alto Saxophone Tenor Saxophone Trumpet

  9. Viewpoint Paper: Early Experiences with Personal Health Records

    Microsoft Academic Search

    John D. Halamka; Kenneth D. Mandl; Paul C. Tang

    2008-01-01

    Over the past year, several payers, employers, and commercial vendors have announced personal health record projects. Few of these are widely deployed and few are fully integrated into ambulatory or hospital-based electronic record systems. The earliest adopters of personal health records have many lessons learned that can inform these new initiatives. We present three case studies—MyChart at Palo Alto Medical

  10. Early Experiences with Personal Health Records

    Microsoft Academic Search

    JOHN D. HALAMKA; KENNETH D. MANDL; PAUL C. TANG

    2008-01-01

    Over the past year, several payers, employers, and commercial vendors have announced personal health record projects. Few of these are widely deployed and few are fully integrated into ambulatory or hospital-based electronic record systems. The earliest adopters of personal health records have many lessons learned that can inform these new initiatives. We present three case studies—MyChart at Palo Alto Medical

  11. NIR observations of V404 Cyg with PANIC

    NASA Astrophysics Data System (ADS)

    Shaw, A. W.; Knigge, C.; Meisenheimer, K.; Ibanez, J. M.

    2015-07-01

    We report on NIR photometry of the black hole X-ray transient, V404 Cyg during its current outburst (GCN #17929). The source was observed between 27 Jun 22:47 UT - 29 Jun UT 02:28 with the PANoramic Near Infrared Camera (PANIC) on the 2.2m telescope at the Centro Astron & oacute;mico Hispano-Alem & aacute;n (CAHA) on Calar Alto, Spain.

  12. Ferridravite, a new mineral of the tourmaline group from Bolivia

    Microsoft Academic Search

    PETE J. DUNN

    Ferridravite, a new member of the tourmaline group, occurs at the San Francisco mine, near Villa Tunari (Alto Chapare), Bolivia, as a rare coating on the schistose country rock. The observed forms are a {1120}, r {l0l l}, andd Q02T). Ferridravite has no cleavage and an uneven fracture. The measured density ot3.26(3) g\\/cm3 is in good agreement with the cal-

  13. Mössbauer and optical spectrometry of selected schörl-dravite tourmalines

    Microsoft Academic Search

    Y. Fuchs; M. Lagache; J. Linares; R. Maury; F. Varret

    1995-01-01

    Spectrometric studies were carried out on samples of tourmaline (schörl-dravite series) from geological environments where first-phase-formed tourmaline underwent influence of geochemically different fluids. Samples are from a differentiated magmatic complex of Trento-Alto Adige, Italy, and from hydrothermal gold and silver deposits of the Humboldt Range, Nevada, USA. Chemical data were obtained from electron microprobes. The results of Mössbauer measurements suggest

  14. Integral field spectroscopy of two radio galaxies at z ˜ 2.3

    Microsoft Academic Search

    S. F. Sánchez; A. Humphrey

    2009-01-01

    Aims: In this article we study the morphology, kinematics and ionization properties of the giant ionized gas nebulae surrounding two high redshift radio galaxies, 4C 40.36 (z = 2.27) and 4C 48.48 (z = 2.34). Methods: Integral field spectroscopy observations were taken using the PPAK bundle of the PMAS spectrograph, mounted on the 3.5 m on the Calar Alto Observatory,

  15. Revision of the status of various bird species occurring or reported in Colombia

    Microsoft Academic Search

    Thomas Donegan; Paul Salaman; David Caro

    2009-01-01

    The following species are added to Colombia's bird checklist: Parkinson's Petrel Procellaria parkinsoni; Leach's Storm-Petrel Oceanodroma leucorrhoa; Grey-headed Gull Chroicocephalus cirrocephalus; Tapaculo Scytalopus sp. (Alto de Pisones bird); and Black-and-white Tanager Conothraupis speculigera. The following species are removed: Curlew Sandpiper Calidris ferruginea, Scaly-naped Pigeon Patagioenas squamosa; Amazonian Pygmy-Owl Glaucidium hardyi; Long-tailed Hermit Phaethornis superciliosis; Spot-tailed Antwren Herpsilochmus sticturus; Caribbean Martin

  16. UN\\/ESA Workshops on Basic Space Science: An Update on Their Achievements

    Microsoft Academic Search

    Hans J. Haubold

    1999-01-01

    During the second half of the twentieth century, expensive observatories are\\u000abeing erected at La Silla (Chile), Mauna Kea (Hawai), Las Palmas (Canary\\u000aIsland), and Calar Alto (Spain), to name a view. In 1990, at the beginning of\\u000aThe Decade of Discovery in Astronomy and Astrophysics (Bahcall [2]), the UN\\/ESA\\u000aWorkshops on Basic Space Science initiated the establishment of small

  17. Atuação da Fisioterapia sobre o Tempo de Internação dos Neonatos Pré-termo Acometidos por Distúrbios Respiratórios na UTI Neo natal do Hospital Universitário São Francisco de Paula

    Microsoft Academic Search

    Ana Paula Ribeiro; Clarissa Bachini Barros; Débora Crochemore Bettin; Elenice Maahs Piper; Gabriela Lemos dos Santos; Gilcéli da Silva Fernandes; Katiúscia Naparo Mirapalhete; Lara Vergara Radmann; Flaviano Moreira da Silva

    Resumo Introdução: No Brasil observa-se um alto índice de re- cém-nascidos (RN's) pré-termo. Os RN's que apresentam complicações peri ou pós-natais, na maioria das vezes correm algum risco de morte podendo apresentar hipóxia neonatal, baixo peso ao nascer, distúrbios neurológicos e alterações respiratórias sendo encaminhados a Unida- des de Terapia Intensiva Neonatais (UTIN). Objetivo: Comparar o tempo de internação dos

  18. Advances in the proposed electromagnetic zero-point field theory of inertia

    Microsoft Academic Search

    Bernhard Haisch; Alfonso Rueda; H. E. Puthoff

    1998-01-01

    A NASA-funded research effort has been underway at the Lockheed Martin Advanced Technology Center in Palo Alto and at California State University in Long Beach to develop and test a recently published theory that Newton's equation of motion can be derived from Maxwell's equations of electrodynamics as applied to the zero-point field (ZPF) of the quantum vacuum. In this ZPF-inertia

  19. The bimodal rift-related Juscelândia volcanosedimentary sequence in central Brazil: Mesoproterozoic extension and Neoproterozoic metamorphism

    Microsoft Academic Search

    Renato Moraes; Reinhardt A. Fuck; Márcio Martins Pimentel; Simone M. C. L. Gioia; Maria H. B. M. de Hollanda; Richard Armstrong

    2006-01-01

    The Barro Alto Complex and Juscelândia volcanosedimentary sequence are exposed in the central part of the Neoproterozoic Brasília belt of central Brazil. The former is a large (approximately 150km long), boomerang-shaped, mafic-ultramafic, layered complex formed by two different intrusions metamorphosed under granulite facies. These rocks are tectonically overlain by rocks of the Juscelândia volcanosedimentary sequence, represented mainly by biotite-gneiss and

  20. Human-induced changes on wetlands: a study case from NW Iberia

    Microsoft Academic Search

    Lourdes López-Merino; Antonio Martínez Cortizas; José Antonio López-Sáez

    2011-01-01

    Wetlands are exceptional ecosystems that contribute to biodiversity and play a key role in the hydrological and carbon cycles. Knowledge of their long-term ecology is essential for a proper understanding of these valuable ecosystems. We present the application of multi-proxy analyses to a 115 cm-thick core from La Molina mire (Alto de la Espina) located in NW Iberia, with a

  1. Human-induced changes on wetlands: a study case from NW Iberia

    Microsoft Academic Search

    Lourdes López-Merino; Antonio Martínez Cortizas; José Antonio López-Sáez

    2011-01-01

    Wetlands are exceptional ecosystems that contribute to biodiversity and play a key role in the hydrological and carbon cycles. Knowledge of their long-term ecology is essential for a proper understanding of these valuable ecosystems. We present the application of multi-proxy analyses to a 115 cm-thick core from La Molina mire (Alto de la Espina) located in NW Iberia, with a chronology

  2. Industrial Process Heat Pumps--Some Unconventional Wisdom

    E-print Network

    Karp, A.

    INDUSTRIAL PROCESS HEAT PUMPS--SOME UNCONVENTIONAL WISDOM ALAN KARP Project Manager Electric Power Research Institute Palo Alto, California ABSTRACT Recent research on the cost-effective use of industrial process heat pumps challenges... integration insights. BUilding on previously formulated prin ciples of "appropriate placement," a generic metho dology has been developed for examining heat pump ing as an alternative to increased heat integration in any process. PC-based software...

  3. Top-to-Bottom Support

    ERIC Educational Resources Information Center

    Olson, Lynn

    2007-01-01

    When Erik G. Brown launched his teaching career at the Cesar Chavez Academy in East Palo Alto, California, four years ago, he was not alone. Seventy-five percent of the teachers in the 400-student middle school were new to the district, and two-thirds of those were new to the field. The school had gone through six principals in six years, and its…

  4. Family Perspectives on the Quality of Pediatric Palliative Care

    Microsoft Academic Search

    Nancy Contro; Judith Larson; Sarah Scofield; Barbara Sourkes; Harvey Cohen

    2002-01-01

    Background: As a prelude to establishing a Pediatric Palliative Care Program, we solicited information from families about their experiences and their suggestions for improving the quality of end-of-life care. Participants were English- and Spanish-speaking family members of de- ceased pediatric patients who received care at Lucile Salter Packard Children's Hospital, Stanford University Medi- cal Center, Palo Alto, Calif. Methods: Sixty-eight

  5. Isotopic Signatures of Neoproterozoic to Cambrian Ultrapotassic Syenitic Magmas, Northeastern Brazil: Evidence for an Enriched Mantle Source

    Microsoft Academic Search

    Valderez P. Ferreira; Alcides N. Sial; Leon E. Long; Christian Pin

    1997-01-01

    Neoproterozoic to Cambrian ultrapotassic (K2O up to 13 wt%) peralkalic alkali-feldspar-rich syenitic plutons were emplaced along the boundary between the Cachoeirinha-Salgueiro and Alto Pajeu tectonostratigraphic terranes of the Borborema structural province, northeastern Brazil. Syenite and alkalic pyroxenitic magmas coexisted in these plutons, which locally carry mica pyroxenite xenoliths. In the Triunfo batholith, the largest peralkalic pluton in the region, syenites

  6. PACT: An Experiment in Integrating Concurrent Engineering Systems

    Microsoft Academic Search

    Mark R. Cutkosky; Robert S. Engelmore; Richard E. Fikes; Michael R. Genesereth; Thomas R. Gruber; William S. Mark; Jay M. Tenenbaum; Jay C. Weber

    1993-01-01

    The Palo Alto Collaborative Testbed (PACT) is a laboratory for joint experimentation incomputer-aided concurrent engineering being pursued by research groups at Stanford University,Lockheed, Hewlett-Packard, and Enterprise Integration Technologies. The current prototypeintegrates four preexisting concurrent engineering systems into a common framework. Eachindividual system is used to model different aspects of a small robotic manipulator, and toreason about them from a different...

  7. Dagga-smoker's hand--a new physical sign?

    PubMed

    Lamont, D L; Duflou, J A; Coates, D

    1988-03-19

    The results of 103 medicolegal autopsies undertaken to detect the presence of cannabinoids in the urine are compared with stains on the hand supposedly suggestive of cannabis smoking using the 'bottleneck' technique. Experience with the EMIT d.a.u. (Enzyme Multiplied Immuno-Technique for drugs of abuse in the urine) cannabinoid assay system (Syva Corp., Palo Alto, California, USA) is discussed. PMID:3353808

  8. TIGHT LOWER BOUNDS FOR st-CONNECTIVITY ON THE NNJAG MODEL

    Microsoft Academic Search

    CHUNG KEUNG; DIMITRIS ACHLIOPTASx

    Directed st-connectivity is the problem of deciding whether or not there exists a path from a distinguished node s to a distinguished node t in a directed graph. We prove a time{ space lower bound on the probabilistic NNJAG model of Poon (Proc. 34th Annual Symposium on Foundations of Computer Science, Palo Alto, CA, 1993, pp. 218{227). Let n be

  9. Tight Lower Bounds for st-Connectivity on the NNJAG Model

    Microsoft Academic Search

    Jeff Edmonds; Chung Keung Poon; Dimitris Achlioptas

    1999-01-01

    Directed st-connectivity is the problem of deciding whether or not there exists a path from a distinguished node s to a distinguished node t in a directed graph. We prove a time- space lower bound on the probabilistic NNJAG model of Poon (Proc. 34th Annual Symposium on Foundations of Computer Science, Palo Alto, CA, 1993, pp. 218-227). Let n be

  10. Network Friendly P2P-TV: The Napa-Wine Approach L. Abeni2, A. Bakay4, M. Biazzini2, R. Birke1, E. Leonardi1, R. Lo Cigno2, C. Kiraly2, M. Mellia1,

    E-print Network

    Network Friendly P2P-TV: The Napa-Wine Approach L. Abeni2, ´A. Bakay4, M. Biazzini2, R. Birke1, E. Fig. 1. Logical architecture of a P2P live streaming system interacting with an ALTO server The Napa-Wine of the candidates, or the same list with some metrics associated. II. THE NAPA-WINE CLIENT Fig. 2 presents

  11. Functional heterogeneity of the red-cockaded woodpecker habitat in the Sam Houston National Forest: a geographic information system approach 

    E-print Network

    Azevedo, Joao Carlos Martins De

    1995-01-01

    Forest A Geographic Information System Approach. (December 1995) Joao Carlos Martins de Azevedo, B. S. , Universidade de Tras-os-Montes e Alto Douro, Portugal Chair of Advisory Committee: Dr. Steven B. Jack Red-cockaded woodpecker (RCW) populations... 3 Forest Type Distribution in the Raven District. 4 Distribution of Active and Inactive Colonies in the Raven District 35 5 Habitat Suitability Map for Approach 1, 6 Habitat Suitability Map for Approach 2. . . . 7 Habitat Suitability Map...

  12. The Vibrobyte : A Haptic Interface for Co-Located Performance

    Microsoft Academic Search

    Kyle McDonald; Dane Kouttron; Curtis Bahn; Jonas Braasch; Pauline Oliveros

    2009-01-01

    The Vibrobyte is a wireless haptic interface specialized forco-located musical performance. The hardware is designedaround the open source Arduino platform, with haptic control data encapsulated in OSC messages, and OSC\\/hardwarecommunications handled by Processing. The Vibrobyte wasfeatured at the International Computer Music Conference2008 (ICMC) in a telematic performance between ensembles in Belfast, Palo Alto (California, USA), and Troy (NewYork, USA).

  13. Study of the measurement of the transverse emittances of a beam by the three gradients method. Application to the case of a focusing by solenoid

    NASA Astrophysics Data System (ADS)

    M'Garrech, S.

    2005-09-01

    Within the framework of the ALTO project (Linear Accelerator near the Orsay Tandem), IPN Orsay will use NEPAL facility of LAL as the ALTO injector. In order to calculate the beam optics of the linear accelerator, it is necessary to find out the electrons beam emittance at the exit of the buncher station. According to previous studies there are several methods for measuring this emittance: direct methods like the Pepper Pot technique, and indirect ones namely the three distances method and the three gradients technique. Moreover, the latter requires a variable optic element (i.e. quadrupole, solenoid…). Generally, the solenoid is used to focus the beam when the later has a symmetry axe of revolution compared to the direction of propagation and it has the same emittance in the two horizontal and vertical planes. In the case of ALTO injector, we did not have the certainty if the beam presented such symmetry. The effects of coupling introduced by the action of the solenoid were thus to be planned to determine the emittance starting from the transverse profiles measurement. This is why we developed a general method of calculation which takes into account the coupling when the horizontal and vertical emittances are different. The first part of this study is dedicated to its presentation. The second part is dedicated to the presentation of emittance measurement results obtained by using this method.

  14. Zonal neutral winds at equatorial and low latitudes

    NASA Astrophysics Data System (ADS)

    Martinis, C.; Meriwether, J.; Niciejewski, R.; Biondi, M.; Fesen, C.; Mendillo, M.

    2001-09-01

    Fabry-Perot interferometric (FPI) measurements of thermospheric zonal neutral winds at Arequipa, Peru (16.7°S,71.5°W,-2.7°dip), and Carmen Alto, Chile (23.1°S,69.4°W,-10.2°dip), were collected during the solar minimum periods of September-October 1996 and 1997. The data set included 39 nights from Arequipa and 14 nights for Carmen Alto, with 8 nights of simultaneous observations. Analysis of averaged results found the peak evening zonal neutral wind speed of ~127+/-15m/s eastward for the Arequipa observatory, which is located near the magnetic equator, to occur between 21:30 and 22:30 LT. In contrast, the peak evening zonal winds of ~100+/-10m/s eastward observed from Carmen Alto, which is located near the crest of the equatorial ionization anomaly (EIA), occurred /~0.5-1h later. These measurements represent the first case of groundbased FPI observations of the so called equatorial temperature and wind anomaly (ETWA) over such a small latitude range in the same longitude sector. This reduction in speed of /~20-25% at Carmen Alto relative to Arequipa is attributed to increased ion drag at Carmen Alto caused by the higher electron density within the EIA region at altitudes of 220-300km. Model studies were conducted using electron density and neutral atmosphere parameters form the parameterized ionospheric model (PIM) and the mass spectrometer incoherent scatter (MSIS) models, respectively, to calculate the ratio of ion-neutral collision frequencies at the two sites. We found that the increase in electron density within the EIA was sufficient to account for the observed reduction in the zonal wind. Thus, this analysis confirms the dominant role of ion drag in modulating thermospheric dynamics at equatorial latitudes. A comparison of the FPI results with the predictions by two current neutral wind models, the Horizontal Wind Model-90 and the NCAR Thermospheric Ionosphere Electrodynamics General Circulation Model (TIEGCM), reveals that neither is able to reproduce accurately the latitude dependence reported here. Model refinements for electrodynamics and improved resolution are suggested.

  15. Changes in stream chemistry and nutrient export following a partial harvest in the Catskill Mountains, New York, USA

    USGS Publications Warehouse

    Wang, X.; Burns, D.A.; Yanai, R.D.; Briggs, R.D.; Germain, R.H.

    2006-01-01

    Clearcut forest harvesting typically results in large changes in stream water chemistry in northeastern North America. The effects of partial forest harvests on stream chemistry have not received as much attention, even though partial cutting is a more common forestry practice than clearcutting in this region. Changes in stream water chemistry following a partial cut are reported here from a 10 ha study catchment in a northern hardwood forest in the Catskill Mountains of southern New York, and are compared to those of a nearby 48 ha reference catchment. The lower two thirds of the treatment catchment was harvested in February-April 2002 by a shelterwood method, such that 33% of the basal area of the catchment was removed. Stream NO3-, NH4+, Ca2+, K+, and total dissolved aluminum (Alto) concentrations increased significantly after the harvest. Stream Ca2+, Mg2+ and NH4+ concentrations peaked 5 months after the initiation of the harvest, NO 3- and K+ concentrations peaked 6 months after cutting, and Alto concentrations peaked 1 year after cutting. Streamflow was not significantly affected by the harvest when compared to the flow of three nearby streams. Export of NO3- in stream water increased five-fold the year after the cut, and briefly exceeded atmospheric inputs of inorganic nitrogen during 4 months in the fall of 2002. Changes in stream NO3- and K+ concentrations were less than predicted by the relative basal area removed compared with those of a recent nearby clearcut. In contrast, changes in Ca2+, Mg 2+ and Alto concentrations were approximately proportional to basal area removal in these two cuts. Stream chemistry returned to values close to those of the pre-cut period and to reference values by early spring of 2003, just over a year after the initiation of the harvest, except for NO 3- concentrations, which remained elevated above background 18-20 months after completion of the cut.

  16. ALFA First Operational Experience of the MPE\\/MPIA Laser Guide Star System for Adaptive Optics

    E-print Network

    Davies, R I; Ott, T; Eckart, A; Holstenberg, H C; Rabien, S; Quirrenbach, Andreas G; Kasper, M E

    1998-01-01

    The sodium laser guide star adaptive optics system ALFA has been constructed at the Calar Alto 3.5-m telescope. Following the first detection of the laser beacon on the wavefront sensor in 1997 the system is now being optimized for best performance. In this contribution we discuss the current status of the launch beam and the planned improvements and upgrades. We report on the performance level achieved when it is used with the adaptive optics system, and relate various aspects of our experience during operation of the system. We have begun to produce scientific results and mention two of these.

  17. ALFA: First Operational Experience of the MPE/MPIA Laser Guide Star System for Adaptive Optics

    E-print Network

    R. I. Davies; W. Hackenberg; T. Ott; A. Eckart; H. -C. Holstenberg; S. Rabien; A. Quirrenbach; M. Kasper

    1998-06-26

    The sodium laser guide star adaptive optics system ALFA has been constructed at the Calar Alto 3.5-m telescope. Following the first detection of the laser beacon on the wavefront sensor in 1997 the system is now being optimized for best performance. In this contribution we discuss the current status of the launch beam and the planned improvements and upgrades. We report on the performance level achieved when it is used with the adaptive optics system, and relate various aspects of our experience during operation of the system. We have begun to produce scientific results and mention two of these.

  18. CAFÉ-BEANS: An exhaustive hunt for high-mass binaries

    NASA Astrophysics Data System (ADS)

    Negueruela, I.; Maíz-Apellániz, J.; Simón-Díaz, S.; Alfaro, E. J.; Herrero, A.; Alonso, J.; Barbá, R.; Lorenzo, J.; Marco, A.; Monguió, M.; Morrell, N.; Pellerin, A.; Sota, A.; Walborn, N. R.

    2015-05-01

    CAFÉ-BEANS is an on-going survey running on the 2.2 m telescope at Calar Alto. For more than two years, CAFÉ-BEANS has been collecting high-resolution spectra of early-type stars with the aim of detecting and characterising spectroscopic binaries. The main goal of this project is a thorough characterisation of multiplicity in high-mass stars by detecting all spectroscopic and visual binaries in a large sample of Galactic O-type stars, and solving their orbits. Our final objective is eliminating all biases in the high-mass-star IMF created by undetected binaries.

  19. Fluorescent method for the detection of excreted ribonuclease around bacterial colonies.

    PubMed

    Lanyi, J K; Lederberg, J

    1966-11-01

    Lanyi, Janos K. (Stanford University School of Medicine, Palo Alto, Calif.), and Joshua Lederberg. Fluorescent method for the detection of excreted ribonuclease around bacterial colonies. J. Bacteriol. 92:1469-1472. 1966.-A test for the release of extracellular ribonuclease by Bacillus subtilis colonles was developed. The method consists of incorporating acridine orange and ribonucleic acid into nutrient agar plates and viewing the grown bacterial colonies under ultraviolet light. Regions of ribonuclease secretion appear as dark halos around the colonies on a green fluorescent background. The theoretical basis and the utility of this test are discussed. PMID:4958882

  20. Teatro en Honduras: La década en cuatro escenas y un intermedio

    E-print Network

    Castro, Carlos M.

    2000-10-01

    resbalar en la trampa de escribir la definitiva acta de defunción del teatro hondureno al repetir el tono de réquiem de algunos estudios recientes sobre el teatro hondureno.1 También está el peligro de quedarnos atrapados en la queja permanente del poco... índices de pobreza más altos en el continente latinoamericano. 134 LATIN AMERICAN THEATRE REVIEW Estudios recientes de la CEPAL han estimado que la pobreza extrema afecta a un 70% o más de la población hondurena, calculando que de aquel porcentaje un 50...

  1. ATHOS: a computer program for thermal-hydraulic analysis of steam generators. Volume 3. User's manual. [PWR

    SciTech Connect

    Singhal, A.K.; Keeton, L.W.; Przekwas, A.J.; Weems, J.S.

    1982-10-01

    ATHOS (Analysis of the Thermal Hydraulics of Steam Generators) is a computer code developed by CHAM of North America Incorporated, under the contract RP 1066-1 from the Electric Power Research Institute, Palo Alto, California. ATHOS supersedes the earlier code URSULA2. ATHOS is designed for three-dimensional, steady state and transient analyses of PWR steam generators. The current version of the code has been checked out for: three different configurations of the recirculating-type U-tube steam generators; the homogeneous and algebraic-slip flow models; and full and part load operating conditions.

  2. Early experiences with personal health records.

    PubMed

    Halamka, John D; Mandl, Kenneth D; Tang, Paul C

    2008-01-01

    Over the past year, several payers, employers, and commercial vendors have announced personal health record projects. Few of these are widely deployed and few are fully integrated into ambulatory or hospital-based electronic record systems. The earliest adopters of personal health records have many lessons learned that can inform these new initiatives. We present three case studies--MyChart at Palo Alto Medical Foundation, PatientSite at Beth Israel Deaconess Medical Center, and Indivo at Children's Hospital Boston. We describe our implementation challenges from 1999 to 2007 and postulate the evolving challenges we will face over the next five years. PMID:17947615

  3. Skywalker Issue 2 

    E-print Network

    Multiple Contributors

    1978-01-01

    Tolkien when I was 13 and had read LotR several times by the time I graduated from high school, but I didn't read much other fan tasy until I was in college and had a next-door neighbor who was very fond of C.S. Lewis and George MacDonald; once I... C00LEY AVE. # 5306 PALO ALTO.. CA 94303 Cost: $3.75 $5.20 $6.00 $7.25 1n person book rate Insured first class overseas Contents copyright a 1978 by Beverley Clark. Rights to each contribution revert to the contri butor thereof. SKYWALKER...

  4. Chemical abundance analysis of the Open Clusters Cr110, NGC2099 (M37), NGC2420, NGC7789 and M67 (NGC2682)

    Microsoft Academic Search

    E. Pancino; R. Carrera; E. Rossetti; C. Gallart

    2009-01-01

    (Abridged) The present number of Galactic Open Clusters that have\\u000ahigh-resolution abundance determinations, not only of [Fe\\/H], but also of other\\u000akey elements, is largely insufficient to enable a clear modeling of the\\u000aGalactic Disk chemical evolution. We obtained high-resolution (R~30000), high\\u000aquality (S\\/N~50-100 per pixel), echelle spectra with FOCES, at Calar Alto, for\\u000a3 red clump stars in each

  5. Rangeland Resource Management for Texans: Total Resource Management (Spanish) 

    E-print Network

    Hanselka, C. Wayne; Fox, William E.; White, Larry D.

    2004-12-22

    efectivamente producen los rendimientos m?s altos de las inversiones de tiempo, dinero, trabajo y recursos naturales. Mientras m?s exitosa llegue a ser una empresa, m?s amerita la inversi?n adicional. Por ejemplo, las pr?cticas de mejora de pastizales...?n) ? Flujo de Recursos (Presupuestos, Flujo de Dinero, Movimiento de Animales, Calendario de Pastoreo, Etc.) ? Implementaci?n y Control (Vigilar las condiciones actuales y las tendencias, compararlos con los planes) ? Ajustes y Actualizaci?n de los Planes...

  6. Maintaining Subsurface Drip Irrigation Systems (Spanish)

    E-print Network

    Enciso, Juan; Porter, Dana; Bordovsky, Jim; Fipps, Guy

    2004-09-07

    estos filtros la tarea m?s importante es ajus- tar la v?lvula que restringe el retroflujo. Si el nivel de retroflujo es demasiado alto, la materia arenosa filtrante se lavar? completamente del filtro. Si el nivel de retroflujo es demasiado bajo, las part...?culas contaminantes nunca ser?n lavadas a trav?s del fil- tro. El crecimiento bacterial y la qu?mica del agua pueden causar que la arena se cemente. La cementaci?n de los filtros de materia arenosa puede causar que se formen canales en la arena, los cuales pueden...

  7. Regla de los frailes menores, con el testamento del bienaventurado padre San Francisco, en latín y en romance, y con las declaraciones apostólicas de Nicolao III y Clemente V, pontífices romanos 

    E-print Network

    Franciscans

    2011-05-17

    E-398S 04-06 David W. Smith, Programa de Seguridad de Extensi?n El Sistema Universitario Texas A&M Seguridad para ganaderos y agricultores mayores Actualmente, cuando muchas personas de la tercera edad est?n liquidando sus cuentas del Seguro... Social o de jubilaci?n, los granjeros mayores esperan poder tener de 10 a 20 a?os m?s de productividad. La edad promedio de un granjero estadounidense es de 57 a?os, el cual es un promedio notablemente m?s alto que ?l de cualquier otra ocupaci?n. Ser...

  8. The Rondonian-San Ignacio Province in the SW Amazonian Craton: An overview

    NASA Astrophysics Data System (ADS)

    Bettencourt, Jorge Silva; Leite, Washington Barbosa; Ruiz, Amarildo Salina; Matos, Ramiro; Payolla, Bruno Leonelo; Tosdal, Richard M.

    2010-01-01

    The Rondonian-San Ignacio Province (1.56-1.30 Ga) is a composite orogen created through successive accretion of arcs, ocean basin closure and final oblique microcontinent-continent collision. The effects of the collision are well preserved mostly in the Paraguá Terrane (Bolivia and Mato Grosso regions) and in the Alto Guaporé Belt and the Rio Negro-Juruena Province (Rondônia region), considering that the province was affected by later collision-related deformation and metamorphism during the Sunsás Orogeny (1.25-1.00 Ga). The Rondonian-San Ignacio Province comprises: (1) the Jauru Terrane (1.78-1.42 Ga) that hosts Paleoproterozoic basement (1.78-1.72 Ga), and the Cachoeirinha (1.56-1.52 Ga) and the Santa Helena (1.48-1.42 Ga) accretionary orogens, both developed in an Andean-type magmatic arc; (2) the Paraguá Terrane (1.74-1.32 Ga) that hosts pre-San Ignacio units (>1640 Ma: Chiquitania Gneiss Complex, San Ignacio Schist Group and Lomas Manechis Granulitic Complex) and the Pensamiento Granitoid Complex (1.37-1.34 Ga) developed in an Andean-type magmatic arc; (3) the Rio Alegre Terrane (1.51-1.38 Ga) that includes units generated in a mid-ocean ridge and an intra-oceanic magmatic arc environments; and (4) the Alto Guaporé Belt (<1.42-1.34 Ga) that hosts units developed in passive marginal basin and intra-oceanic arc settings. The collisional stage (1.34-1.32 Ga) is characterized by deformation, high-grade metamorphism, and partial melting during the metamorphic peak, which affected primarily the Chiquitania Gneiss Complex and Lomas Manechis Granulitic Complex in the Paraguá Terrane, and the Colorado Complex and the Nova Mamoré Metamorphic Suite in the Alto Guaporé Belt. The Paraguá Block is here considered as a crustal fragment probably displaced from its Rio Negro-Juruena crustal counterpart between 1.50 and 1.40 Ga. This period is characterized by extensive A-type and intra-plate granite magmatism represented by the Rio Crespo Intrusive Suite (ca. 1.50 Ga), Santo Antonio Intrusive Suite (1.40-1.36 Ga), and the Teotônio Intrusive Suite (1.38 Ga). Magmatism of these types also occur at the end of the Rondonian-San Ignacio Orogeny, and are represented by the Alto Candeias Intrusive Suite (1.34-1.36 Ga), and the São Lourenço-Caripunas Intrusive Suite (1.31-1.30 Ga). The cratonization of the province occurred between 1.30 and 1.25 Ga.

  9. Microfacies analysis, paleoecology, and environment of deposition of Morrowan shelf carbonates, Magdalena Limestone (lower division), Hueco Mountains, El Paso County, West Texas

    E-print Network

    Connolly, William Marc

    1985-01-01

    ), are highly dissected, and appear as mountains when viewed from the Hueco Bolson to the west. The highest summit in the range is Cerro Alto, a syenite intrusion with an elevation of 6717 feet (2047 m). The Hueco Mountain escarpment decreases in relief...-central New Mexico during Eocene and Oligocene time. It was during this time that syenites were intruded in the Hueco Mountains (Wise, 1977). The Basin and Range structure responsible for the present exposure of Morrowan strata in the Hueco and Franklin...

  10. Drinking Water Problems: Copper (Spanish)

    E-print Network

    Dozier, Monty; McFarland, Mark L.; Lesikar, Bruce J.

    2006-01-25

    dentro del suministro de agua. Los individuos que ingieren esta agua pueden ser expuestos a niveles elevados de cobre. ?Cu?les son los efectos del cobre en la salud? Aunque nuestra dieta requiera de 1,000 micro- gramos de cobre diariamente, niveles... elevados del cobre ingerido pueden ser da?inos. Niveles elevados de cobre durante 14 d?as o m?s, pueden conllevar a problemas de salud tales como da?o permanente de los ri?ones y el h?gado en ni?os de menos de un a?o de edad. En los adultos, los altos...

  11. Why Range Forage Quality Changes (Spanish)

    E-print Network

    Lyons, Robert K.; Machen, Richard V.; Forbes, T. D. A.

    2001-09-10

    principalmente en herb?ceas y en hojas de plantas le?osas, puede tener algunos beneficios nutricionales. Por ejemp- lo, niveles bajos de taninos aparentemente dis- minuyen la degradaci?n de las prote?nas por los microorganismos del rumen. Cuando esta prote?- na... degradan las prote?nas para obtener sus propios amino?cidos y compuestos prot?icos. La prote?na producida por estos microorganismos puede ser de mayor o menor valor que la prote?na original de la planta. Altos niveles de algunos taninos pueden hacer la...

  12. Solving Water Quality Problems in the Home (Spanish)

    E-print Network

    Dozier, Monty; McFarland, Mark L.

    2004-02-20

    inusual? ?Contiene sedimen- to? ?Mancha la ropa, los platos, los accesorios de plomer?a, o las aceras? Por ejemplo, el agua en algu- nas partes de Texas contiene altos niveles de hierro disuelto que causan manchas caf? rojizas en los lavamanos, ba?eras e...- minantes necesitan ser medidos s?lo si existe raz?n para creer que ?stos est?n presentes en niveles peli- grosos. El informe de laboratorio debe de indicar si existen algunos contaminantes que no alcanzan los est?n- dares primarios o secundarios. Dentro...

  13. Assessment of an Emerging Technology

    NASA Technical Reports Server (NTRS)

    Ardema, Mark D.

    1979-01-01

    The AIAA's 1979 Lighter-Than-Air (LTA) Systems Technology Conference--the third of the series--was held July 11-13 in Palo Alto, Calif. Highlights of the conference proved to be strong interest in patrol and surveillance airships, particularly for coastal patrol missions, the session devoted to overviews of foreign activity, the luncheon address by Morris B. Jobe, president of Goodyear Aerospace, coincident remarks by RAdm. Manning of the Coast Guard R&D Office and RAdm Seiberlich of the Navy, and presence of the Goodyear advertising airship Columbia.

  14. KARMENES, the K2+CARMENES alliance

    NASA Astrophysics Data System (ADS)

    Rodríguez-López, C.; Anglada-Escudé, G.; Amado, P. J.; Ofir, A.; Ribas, I.; Caballero, J. A.; Quirrenbach, A.; Reiners, A.; CARMENES Consortium

    2015-05-01

    The main goal of the CARMENES instrument is to perform high accuracy measurements of stellar radial velocities (1 m/s) with long term stability. It will be installed on Calar Alto in 2015 and will be equipped with two spectrographs covering from the visible to the near-infrared. The Kepler K2 mission uses Kepler spacecraft operating with only two reaction wheels to achieve high precision photometry of thousands of objects along the ecliptic. The CARMENES Consortium is proposing M dwarf targets to be observed in each K2 pointing, with the main aim of detecting transiting planets around late-type M dwarfs and pulsations.

  15. Safe Operation of Backup Power Generators (Spanish) 

    E-print Network

    Smith, David

    2006-04-19

    un generador son el envenenamiento por mon?xido de carbono (CO) proveniente de los gases emitidos por el generador, la electrocuci?n y los incendios. Peligros del mon?xido de carbono El mon?xido de carbono es un subproducto sin olor ni color del... carbono experimentar?n una serie de s?ntomas. La exposici?n a niveles bajos puede tener como resultado dolores de cabeza, letargo, debilidad, n?usea y dolores musculares. La exposici?n a niveles altos puede causar par?lisis, inconsciencia e incluso la...

  16. VizieR Online Data Catalog: Transit of HAT-P-5 (Southworth+, 2012)

    NASA Astrophysics Data System (ADS)

    Southworth, J.; Mancini, L.; Maxted, P. F. L.; Bruni, I.; Tregloan-Reed, J.; Barbieri, M.; Ruocco, N.; Wheatley, P. J.

    2013-01-01

    We observed one full transit of HAT-P-5 on the night of 2010 August 23, using the 2.2-m telescope and BUSCA imager at Calar Alto Astronomical Observatory. BUSCA uses dichroics to split the incoming light into four wavelength intervals, which traverse different arms of the instrument and are incident on to four CCDs. We observed two transits of HAT-P-5 in 2011 May and July, using BFOSC mounted on the 1.52-m G.D. Cassini Telescope at Loiano Observatory, Italy. (2 data files).

  17. The relationship between minority statuses and prejudice 

    E-print Network

    Veve, Mia

    2009-06-02

    ?s support. Gracias a la Vida by Violeta Parra Gracias a la vida que me ha dado tanto. Me dio dos luceros que, cuando los abro, perfecto distingo lo negro del blanco, y en el alto cielo su fondo estrellado y en las multitudes el hombre que... yo amo. Gracias a la vida que me ha dado tanto. Me ha dado el o?do que, en todo su ancho, graba noche y d?a grillos y canarios; martillos, turbinas, ladridos, chubascos, y la voz tan tierna de mi bien amado. Gracias a la vida que me ha dado tanto...

  18. [Trichogramma species (Hymenoptera: Trichogrammatidae) parasitoids of Lepidopteran eggs in Lara State, Venezuela].

    PubMed

    Morales, José; Vásquez, Carlos; Pérez B, Nieves L; Valera, Neicy; Ríos, Yolmar; Arrieche, Norayda; Querino, Ranyse B

    2007-01-01

    This work was conducted to determine the occurrence of Trichogramma wasp species in Lara State, Venezuela. Lepidopteran egg samples collected from various crop leaves were observed daily under laboratory conditions for emergence of Trichogramma species adult wasps. Trichogramma were also obtained from traps containing eggs from the hosts Sitotroga cerealella (Olivier) (Lepidoptera: Gelechiidae) and Spodoptera frugiperda (J. E. Smith) (Lepidoptera: Noctuidae). In the laboratory, specimens of Trichogramma species were mounted on microscope slides to show male genitalia and other morphological characters used for its identification. Trichogramma atopovirilia Oatman y Platner emerged from S. frugiperda eggs collected in a cornfield at La Palomera, Humocaro Alto and at El Parchal, Humocaro Bajo, Municipio Morán. T. atopovirilia also emerged from S. frugiperda eggs collected in a cornfield at Sabana Grande and from S. cerealella eggs used as traps in a pepper culture at Tintinal, Municipio Andrés Eloy Blanco. T. exiguum Pinto y Platner emerged from S. frugiperda eggs used as traps or collected in cornfield at Totumito and at La Palomera, Humocaro Alto. T. pretiosum Riley emerged from Phthorimaea operculella Zeller eggs collected on stored potatoes at Monte Carmelo, Sanare. The identification of Trichogramma species in Lara State would be useful in the development of biological control programs for lepidopteran pests. PMID:17934619

  19. Loudness and pitch of Kunqu opera.

    PubMed

    Dong, Li; Sundberg, Johan; Kong, Jiangping

    2014-01-01

    Equivalent sound level (Leq), sound pressure level (SPL), and fundamental frequency (F0) are analyzed in each of five Kunqu Opera roles, Young girl and Young woman, Young man, Old man, and Colorful face. Their pitch ranges are similar to those of some western opera singers (alto, alto, tenor, baritone, and baritone, respectively). Differences among tasks, conditions (stage speech, singing, and reading lyrics), singers, and roles are examined. For all singers, Leq of stage speech and singing were considerably higher than that of conversational speech. Interrole differences of Leq among tasks and singers were larger than the intrarole differences. For most roles, time domain variation of SPL differed between roles both in singing and stage speech. In singing, as compared with stage speech, SPL distribution was more concentrated and variation of SPL with time was smaller. With regard to gender and age, male roles had higher mean Leq and lower average F0, MF0, as compared with female roles. Female singers showed a wider F0 distribution for singing than for stage speech, whereas the opposite was true for male singers. The Leq of stage speech was higher than in singing for young personages. Younger female personages showed higher Leq, whereas older male personages had higher Leq. The roles performed with higher Leq tended to be sung at a lower MF0. PMID:24070593

  20. Lucky imaging multiplicity studies of exoplanet host stars

    NASA Astrophysics Data System (ADS)

    Ginski, C.; Mugrauer, M.; Neuhäuser, R.

    2014-03-01

    The multiplicity of stars is an important parameter in order to understand star and planet formation. In the past decades extrasolar planets have been discovered around more than 600 stars with the radial velocity and transit techniques. Many of these systems present extreme cases of massive planetary objects at very close separations to their primary stars. To explain the configurations of such systems is hence a continued challenge in the development of formation theories. It will be very interesting to determine if there are significant differences between planets in single and multiple star systems. In our ongoing study we use high resolution imaging techniques to clarify the multiplicity status of nearby (within 250 pc) planet host stars. For targets on the northern hemisphere we employ the lucky imaging instrument Astralux at the 2.2 m telescope of the Calar Alto Observatory. The lucky imaging approach consists of taking several thousand short images with integration times shorter than the speckle coherence time, to sample the speckle variations during the observation window. We then only choose the so called "lucky shots" with a very high Strehl ratio in one of the speckles, to shift and add, resulting in a final image with the highest possible Strehl ratio and therefore highest possible angular resolution. We will present recent results of our study at the Calar Alto Observatory, as well as observations undertaken with the RTK camera at the 20 cm guiding telescope in our own observatory in Großschwabhausen.

  1. The German-Spanish connection

    NASA Astrophysics Data System (ADS)

    Robinson, L. J.

    1980-04-01

    Cooperation between West Germany and Spain in the field of observational astronomy is discussed, with particular attention given to the newly operational German-Spanish Astronomical Center atop Calar Alto, Spain. The history of German and Spanish observational astronomy is briefly indicated as motivation for the joint venture, and the construction of the Calar Alto observatory, a branch of the Max Planck Institute for Astronomy, is outlined. The Center's instruments consist of the operational 1.2-m reflector employing an aplanatic Ritchey-Chretien system and a two-element field corrector, the 2.2-m reflector again with a Ritchey-Chretien optical system with field corrector however using a four-mirror coude arrangement, and a 3.5-m reflector under construction. Current objects of research include the bipolar H II region S 106, and extragalactic objects such as BL Lac objects, quasars and active galaxies. Organizational and operational aspects of the Center and the Max Planck Institute for Astronomy are also outlined.

  2. Total centralisation and optimisation of an oncology management suite via Citrix®

    NASA Astrophysics Data System (ADS)

    James, C.; Frantzis, J.; Ripps, L.; Fenton, P.

    2014-03-01

    The management of patient information and treatment planning is traditionally an intra-departmental requirement of a radiation oncology service. Epworth Radiation Oncology systems must support the transient nature of Visiting Medical Officers (VMOs). This unique work practice created challenges when implementing the vision of a completely paperless solution that allows for a responsive and efficient service delivery. ARIA® and EclipseTM (Varian Medical Systems, Palo Alto, CA, USA) have been deployed across four dedicated Citrix® (Citrix Systems, Santa Clara, CA, USA) servers allowing VMOs to access these applications remotely. A range of paperless solutions were developed within ARIA® to facilitate clinical and organisational management whilst optimising efficient work practices. The IT infrastructure and paperless workflow has enabled VMOs to securely access the VarianTM (Varian Medical Systems, Palo Alto, CA, USA) oncology software and experience full functionality from any location on multiple devices. This has enhanced access to patient information and improved the responsiveness of the service. Epworth HealthCare has developed a unique solution to enable remote access to a centralised oncology management suite, while maintaining a secure and paperless working environment.

  3. CARMENES input catalogue of M dwarfs. I. Low-resolution spectroscopy with CAFOS

    E-print Network

    Alonso-Floriano, F J; Caballero, J A; Montes, D; Klutsch, A; Mundt, R; Cortes-Contreras, M; Ribas, I; Reiners, A; Amado, P J; Quirrenbach, A; Jeffers, S V

    2015-01-01

    Context. CARMENES is a stabilised, high-resolution, double-channel spectrograph at the 3.5 m Calar Alto telescope. It is optimally designed for radial-velocity surveys of M dwarfs with potentially habitable Earth-mass planets. Aims. We prepare a list of the brightest, single M dwarfs in each spectral subtype observable from the northern hemisphere, from which we will select the best planet-hunting targets for CARMENES. Methods. In this first paper on the preparation of our input catalogue, we compiled a large amount of public data and collected low-resolution optical spectroscopy with CAFOS at the 2.2 m Calar Alto telescope for 753 stars. We derived accurate spectral types using a dense grid of standard stars, a double least-squares minimisation technique, and 31 spectral indices previously defined by other authors. Additionally, we quantified surface gravity, metallicity, and chromospheric activity for all the stars in our sample. Results. We calculated spectral types for all 753 stars, of which 305 are new ...

  4. HS 0705+6700: a New Eclipsing sdB Binary

    NASA Astrophysics Data System (ADS)

    Drechsel, H.; Heber, U.; Napiwotzki, R.; Ostensen, R.; Solheim, J.-E.; Deetjen, J.; Schuh, S.

    HS 0705+6700 is a newly discovered eclipsing sdB binary system consisting of an sdB primary and a cool secondary main sequence star. CCD photometry obtained in October and November 2000 with the 2.5m Nordic (NOT) telescope (La Palma, Tenerife) in the B passband and with the 2.2m Calar Alto telescope (CAFOS, R filter) yielded eclipse light curves with complete orbital phase coverage at high time resolution. A periodogram analysis of 12 primary minimum times distributed over the time span from October 2000 to March 2001 allowed to derive the following exact period and linear ephemeris: prim. min. = HJD 2451822.759782(22) + 0.09564665(39) ? E A total of 15 spectra taken with the 3.5m Calar Alto telescope (TWIN spectrograph) on March 11-12, 2001, were used to establish the radial velocity curve of the primary star (K1 = 85.8 km/s) , and to determine its basic atmospheric parameters (Teff = 29300 K, log g = 5.47). The B and R light curves were solved using our Wilson-Devinney based light curve analysis code MORO (Drechsel et al. 1995, A&A 294, 723). The best fit solution yielded exact system parameters consistent with the spectroscopic results. Detailed results will be published elsewhere (Drechsel et al. 2001, A&A, in preparation).

  5. Palynostratigraphy of the Chapada Group and its significance in the Devonian stratigraphy of the Paraná Basin, south Brazil

    NASA Astrophysics Data System (ADS)

    Grahn, Yngve; Mauller, Paula Mendlowicz; Pereira, Egberto; Loboziak, Stanislas

    2010-03-01

    The Alto Garças Sub-basin in the northern part of the Paraná Basin evolved differently from the Apucarana Sub-basin in the south. The marine environment was shallower in the Alto Garças Sub-basin, which contains proportionately more silty and arenaceous rocks. The formations and members defined in the Apucarana Sub-basin are therefore difficult to apply in the Alto Garças Sub-basin, where the Chapada Group (units 1-4) is more applicable. An integrated miospore and chitinozoan biozonation of the Chapada Group facilitates direct correlation between the Chapada Group's units and the classical formations of the Paraná Basin as defined in the Apucarana Sub-basin. The Furnas Formation and Chapada unit 1 constitute the same lithostratigraphic unit. Beds with rhyniophytes in the uppermost part of the Furnas Formation contain palynomorphs representative of the Si phylozone within the MN spore Zone (late Lochkovian), and the rhyniophyte beds occupy the same stratigraphic interval within Chapada unit 1 (the Lochkovian of the Paraná Basin lacks chitinozoans). The lower part of Chapada unit 2 contains spores of the PoW Su spore Zone and chitinozoans of the Ramochitina magnifica and Ancyrochitina pachycerata zones, together indicating a late Pragian-early Emsian age-span. The upper part of Chapada unit 2 corresponds to the GS (AP) and Per (AD pre-Lem) spore Zones, and chitinozoans of the Ancyrochitina parisi, the informal Ancyrochitina varispinosa and Alpenachitina eisenacki chitinozoan zones, thus suggestive of a late Emsian - earliest Givetian age-span. Unit 3 is a proximal and lateral facies equivalent of the upper part of unit 2. The lower part of unit 4 includes spores typical of the early Givetian Lli (AD Lem) spore Zone and chitinozoans of the Ramochitina stiphrospinata chitinozoan Zone; the uppermost (early late Frasnian) part contains spores of the lower BMu (IV) spore Zone and chitinozoans of the Lagenochitina avelinoi chitinozoan Zone. The sandstones of unit 3 were inundated during the earliest Givetian, and the resultant flooding surface marks the base of unit 4 basin-wide. Clearly, the two sub-basins were distinct depositional centers during the Devonian.

  6. Final Design of the CARMENES M-Dwarf Radial-Velocity Survey Instrument

    NASA Astrophysics Data System (ADS)

    Quirrenbach, Andreas; Amado, P.; Seifert, W.; Sánchez Carrasco, M. A.; Ribas, I.; Reiners, A.; Mandel, H.; Caballero, J. A.; Mundt, R.; Galadí, D.; Consortium, CARMENES

    2013-01-01

    CARMENES (Calar Alto high-Resolution search for M dwarfs with Exo-earths with Near-infrared and optical Echelle Spectrographs) is a next-generation instrument being built for the 3.5m telescope at the Calar Alto Observatory by a consortium of eleven Spanish and German institutions. CARMENES will conduct a five-year exoplanet survey targeting ~300 M dwarfs. The CARMENES instrument consists of two separate échelle spectrographs covering the wavelength range from 0.55 to 1.7 ?m at a spectral resolution of R = 82,000, fed by fibers from the Cassegrain focus of the telescope. For late-M spectral types, the wavelength range around 1.0 ?m (Y band) is the most important wavelength region for radial velocity work. Therefore, the efficiency of CARMENES will be optimized in this range. Since CCDs do not provide high enough efficiency around 1.0 ?m and no signal at all beyond the Si cutoff at 1.1 ?m, a near-IR detector is required. It is thus natural to adopt an instrument concept with two spectrographs, one equipped with a CCD for the range 0.55-1.05 ?m, and one with HgCdTe detectors for the range from 0.9-1.7 ?m. Each spectrograph will be coupled to the 3.5m telescope with its own optical fiber. The front end will contain a dichroic beam splitter and an atmospheric dispersion corrector, to feed the light into the fibers leading to the spectrographs. Guiding is performed with a separate camera. Additional fibers are available for simultaneous injection of light from emission line lamps for RV calibration. The spectrographs are mounted on benches inside vacuum tanks located in the coudé laboratory of the 3.5m dome. Each vacuum tank is equipped with a temperature stabilization system capable of keeping the temperature constant to within ±0.01K over 24h. The visible-light spectrograph will be operated near room temperature, the NIR spectrograph will be cooled to 140K. The CARMENES instrument passed its preliminary design review in July 2011; the final design is just being completed. Commissioning of the instrument is planned for the first half of 2014. At least 600 useable nights have been allocated at the Calar Alto 3.5m Telescope for the CARMENES survey in the time frame from 2014 to 2018.

  7. The computational structural mechanics testbed architecture. Volume 5: The Input-Output Manager DMGASP

    NASA Technical Reports Server (NTRS)

    Felippa, Carlos A.

    1989-01-01

    This is the fifth of a set of five volumes which describe the software architecture for the Computational Structural Mechanics Testbed. Derived from NICE, an integrated software system developed at Lockheed Palo Alto Research Laboratory, the architecture is composed of the command language (CLAMP), the command language interpreter (CLIP), and the data manager (GAL). Volumes 1, 2, and 3 (NASA CR's 178384, 178385, and 178386, respectively) describe CLAMP and CLIP and the CLIP-processor interface. Volumes 4 and 5 (NASA CR's 178387 and 178388, respectively) describe GAL and its low-level I/O. CLAMP, an acronym for Command Language for Applied Mechanics Processors, is designed to control the flow of execution of processors written for NICE. Volume 5 describes the low-level data management component of the NICE software. It is intended only for advanced programmers involved in maintenance of the software.

  8. Eight months spying the comet 9P/Tempel 1, the Deep Impact target

    NASA Astrophysics Data System (ADS)

    Lara, L. M.; Boehnhardt, H.; Gutiérrez, P. J.; Rodrigo, R.; Vidal-Nuñez, M. J.

    In this presentation we will review the behaviour of the comet 9P Tempel 1 from Jan 2005 until mid-August 2005 including the Deep Impact event The long-term evolution of the comet activity months before the impact will be shown Special emphasis will be put in the results obtained from long-slit spectroscopy and broadband imaging acquired from July 01 to August 12 2005 when a daily monitoring of the cometary activity was carried out Information on the long and short term evolution of the gas production rates Afrho dust color and dust coma morphology will be presented These results have been obtained from a long term monitoring long-slit spectroscopy and CCD imaging from the Calar Alto Observatory CSIC-MPG Almeria Spain from the Sierra Nevada Observatory IAA-CSIC Granada Spain and from the La Silla Observatory ESO Chile

  9. Absolutely calibrated CCD images of Saturn at methane band and continuum wavelengths during its 1991 opposition

    NASA Astrophysics Data System (ADS)

    Ortiz, J. L.; Moreno, F.; Molina, A.

    1993-02-01

    Ground-based charge-coupled device images of Saturn were obtained at the Cassegrain focus of the 1.52-m telescope at the Calar Alto Observatory (Andalucia, Spain) during the 1991 opposition. The images were obtained in and out of the absorption methane bands at 6190, 7250, and 8900A under very good seeing conditions. A Bayesian deconvolution technique was employed in the restoration procedure. The derived absolute reflectivities and band depths at some locations of the disk are provided in tables appropriate for analysis in terms of scattering models. Possible temporal variations between the reflectivities found here and those reported by West et al. (1982) are discussed. No longitudinal variations in reflectivity larger than a 4 percent level were found. Some images showed bright spot activity at the equatorial region.

  10. The importance of leaf- and litter-feeding invertebrates as sources of animal protein for the Amazonian Amerindians.

    PubMed

    Paoletti, M G; Dufour, D L; Cerda, H; Torres, F; Pizzoferrato, L; Pimentel, D

    2000-11-22

    At least 32 Amerindian groups in the Amazon basin use terrestrial invertebrates as food. Leaf- and litter-consuming invertebrates provide the more important, underestimated food sources for many Amerindian groups. Further, litter-consuming earthworms are also an important food resource for the Ye'Kuana (also known as Makiritare) in the Alto Orinoco (Amazonas, Venezuela). By selecting these small invertebrates the Amerindians are choosing their animal food from those food webs in the rainforest which have the highest energy flow and which constitute the greatest renewable stock of readily available nutrients. Here we show that the consumption of leaf- and litter-feeding invertebrates as a means of recovering protein, fat and vitamins by the forest-living peoples offers a new perspective for the development of sustainable animal food production within the paradigm of biodiversity maintenance. PMID:11413639

  11. Drinking Water Problems: Radionuclides (Spanish) 

    E-print Network

    Lesikar, Bruce J.; Melton, Rebecca; Hare, Michael; Hopkins, Janie; Dozier, Monty

    2006-12-21

    sistema que se va a comprar debe estar basado en el n?mero de galones que ser?n utilizados para estos prop?sitos cada d?a. Las unidades t?picas de tratamiento producen de 5 a 15 galones de agua por d?a. En caso de que se nece- siten grandes cantidades de.../gal?n = 0.024 x ???????????? x Costo de electricidad ($/k Wh) Producci?n (galones/d?a) Costos Las unidades de destilaci?n se pueden comprar a un costo de entre $300 y $1,200. Los costos de operaci?n para los sistemas de destilaci?n pueden ser m?s altos que...

  12. Searching double-peaked emission-line profiles in the spectra of galaxies through the symmetry of the cross-correlation function

    NASA Astrophysics Data System (ADS)

    García-Lorenzo, B.

    2013-03-01

    The presence of double-peaked/multi-component emission-line profiles in the spectra of galaxies is commonly identified by visual inspection. However, the identification of complex emission-line profiles by eye is unlikely for large data bases such as the Sloan Digital Sky Survey (SDSS) or the integral field spectroscopy surveys of galaxies (e.g. Calar Alto Legacy Integral Field Area Survey or The Mapping Nearby Galaxies at APO). We describe a quick method involving a cross-correlation technique for detecting the presence of complex (double-peaked or multiple components) profiles in the spectra of galaxies, deriving simultaneously a first estimation of the velocity dispersions and radial velocities of the dominant gaseous component. We illustrate the proposed procedure with the well-known complex [O III]??4959, 5007 profiles of the central region of NGC 1068.

  13. Outcomes of the 2013 GTO Workshop on Geothermal Code Comparison

    SciTech Connect

    Scheibe, Timothy D.; White, Mark D.; White, Signe K.

    2013-03-01

    Pacific Northwest National Laboratory (PNNL) is supporting the Department of Energy (DOE) Geothermal Technologies Office (GTO) in organizing and executing a model comparison activity. This project is directed at testing, diagnosing differences, and demonstrating modeling capabilities of a worldwide collection of numerical simulators for evaluating geothermal technologies. A key element of the projct was the planning and implementation of a one-day project kickoff workshop, held February 14, 2013 in Palo Alto, CA. The primary goals of the workshop were to 1) introduce the project and its objectives to potential participating team members, and 2) develop an initial set of test problem descriptions for use in the execution stage. This report summarizes the outcomes of the workshop.

  14. How to implement a quality program in a coking plant. The AHMSA experience

    SciTech Connect

    Reyes M, M.A.; Perez, J.L.; Garza, C. de la; Morales, M.

    1995-12-01

    AHMSA (Altos Hornos de Mexico) is the largest integrated Steel Plant in Mexico, with its 3.1 MMMT of Liquid Steel production program for 1995. AHMSA operates two coke plants which began operations in 1955 and 1976. Total coke monthly production capacity amounts to as much as 106,000 Metric Tons (MT). The coke plants working philosophy was discussed and established in 1986 as part of the Quality Improvement Program, where its ultimate goal is to give the best possible coke quality to its main client--the blast furnaces. With this goal in mind, a planned joint effort with their own coal mines was initiated. This paper deals with the implementation process of the Quality Program, and the results of this commitment at the coal mines, coke plants and blast furnaces. The coke quality improvement is shown since 1985 to 1994, as well as the impact on the blast furnace operation.

  15. Two new basaltic asteroids in the Outer Main Belt

    E-print Network

    Duffard, R

    2007-01-01

    The identification of other basaltic objects in the asteroid belt is mandatory to explain the diversity in the collection of basaltic meteorites. This diversity requires more than one differentiated parent body, a fact that is consistent with the diversity of differentiated parent bodies implied by the iron meteorites. Based on a list of previously identified candidate basaltic (V-type) asteroids, two asteroids in the outer main belt, (7472) Kumakiri and (10537) 1991 RY16, were spectroscopically observed during an observational run in Calar Alto Observatory, Spain. We confirm the V-type character of these two asteroids that, together with (1459) Magnya, become the only known traces of basaltic found in the outer main belt up to now. We also demonstrate that the searching for candidate V-type asteroids using a photometric survey, like the Sloan Digital Sky Survey, produces reliable results.

  16. The computational structural mechanics testbed architecture. Volume 2: Directives

    NASA Technical Reports Server (NTRS)

    Felippa, Carlos A.

    1989-01-01

    This is the second of a set of five volumes which describe the software architecture for the Computational Structural Mechanics Testbed. Derived from NICE, an integrated software system developed at Lockheed Palo Alto Research Laboratory, the architecture is composed of the command language (CLAMP), the command language interpreter (CLIP), and the data manager (GAL). Volumes 1, 2, and 3 (NASA CR's 178384, 178385, and 178386, respectively) describe CLAMP and CLIP and the CLIP-processor interface. Volumes 4 and 5 (NASA CR's 178387 and 178388, respectively) describe GAL and its low-level I/O. CLAMP, an acronym for Command Language for Applied Mechanics Processors, is designed to control the flow of execution of processors written for NICE. Volume 2 describes the CLIP directives in detail. It is intended for intermediate and advanced users.

  17. The importance of leaf- and litter-feeding invertebrates as sources of animal protein for the Amazonian Amerindians.

    PubMed Central

    Paoletti, M G; Dufour, D L; Cerda, H; Torres, F; Pizzoferrato, L; Pimentel, D

    2000-01-01

    At least 32 Amerindian groups in the Amazon basin use terrestrial invertebrates as food. Leaf- and litter-consuming invertebrates provide the more important, underestimated food sources for many Amerindian groups. Further, litter-consuming earthworms are also an important food resource for the Ye'Kuana (also known as Makiritare) in the Alto Orinoco (Amazonas, Venezuela). By selecting these small invertebrates the Amerindians are choosing their animal food from those food webs in the rainforest which have the highest energy flow and which constitute the greatest renewable stock of readily available nutrients. Here we show that the consumption of leaf- and litter-feeding invertebrates as a means of recovering protein, fat and vitamins by the forest-living peoples offers a new perspective for the development of sustainable animal food production within the paradigm of biodiversity maintenance. PMID:11413639

  18. Next Generation Geothermal Power Plants (NGGPP) process data for binary cycle plants

    SciTech Connect

    Not Available

    1996-10-02

    The Next Generation Geothermal Power Plants (NGGPP) study provides the firm estimates - in the public domain - of the cost and performance of U.S. geothermal systems and their main components in the early 1990s. The study was funded by the U.S. Department of Energy Geothermal Research Program, managed for DOE by Evan Hughes of the Electric Power Research Institute, Palo Alto, CA, and conducted by John Brugman and others of the CE Holt Consulting Firm, Pasadena, CA. The printed NGGPP reports contain detailed data on the cost and performance for the flash steam cycles that were characterized, but not for the binary cycles. The nine Tables in this document are the detailed data sheets on cost and performance for the air cooled binary systems that were studied in the NGGPP.

  19. New brown dwarf companions to dM(e) stars

    NASA Astrophysics Data System (ADS)

    Seifahrt, A.; Mugrauer, M.; Wiese, M.; Neuhäuser, R.; Guenther, E. W.

    2005-12-01

    We present new astrometric and spectroscopic data to confirm two new M/L dwarf systems, G124-62 and LHS5166, and discuss the nature of a third system (LP261-75). Age and thus mass determinations of the L dwarf companions are discussed based on various activity-age relationships of the M dwarf primaries. This publication will update the list of widely separated substellar companions to nearby stars. This paper is partly based on observations obtained at the European Southern Observatory at La Silla, Chile under program ID 072.C-0571(B) and on observations collected at the Centro Astronómico Hispano Alemán (CAHA) at Calar Alto, operated jointly by the Max-Planck Institut für Astronomie and the Instituto de Astrofísica de Andalucía (CSIC).

  20. ATHOS: a computer program for thermal-hydraulic analysis of steam generators. Volume 1. Mathematical and physical models and method of solution. [PWR

    SciTech Connect

    Singhal, A.K.; Keeton, L.W.; Spalding, D.B.; Srikantiah, G.S.

    1982-10-01

    ATHOS (Analysis of the Thermal Hydraulics of Steam Generators) is a computer code developed by CHAM of North America Incorporated, under the contract RP 1066-1 from the Electric Power Research Institute, Palo Alto, California. ATHOS supersedes the earlier code URSULA2. ATHOS is designed for three-dimensional, steady state and transient analyses of PWR steam generators. The current version of the code has been checked out for: three different configurations of the recirculating-type U-tube steam generators; the homogeneous and algebraic-slip flow models; and full and part load operating conditions. The description of ATHOS is divided into four volumes. Volume 1 includes the mathematical and physical models and method of solution.

  1. ATHOS: a computer program for thermal-hydraulic analysis of steam generators. Volume 2. Programmer's manual

    SciTech Connect

    Singhal, A.K.; Keeton, L.W.; Przekwas, A.J.; Weems, J.S.

    1982-10-01

    ATHOS (Analysis of the Thermal Hydraulics of Steam Generators) is a computer code developed by CHAM of North America Incorporated, under the contract RP 1066-1 from the Electric Power Research Institute, Palo Alto, California. ATHOS supercedes the earlier code URSULA2. ATHOS is designed for three-dimensional, steady-state and transient analyses of PWR steam generators. The current version of the code has been checked out for: three different configurations of the recirculating-type U-tube steam generators; the homogeneous and algebraic-slip flow models; and full and part load operating conditions. The description of ATHOS is divided into the following four volumes: Volume 1, Mathematical and Physical Models and Methods of Solution; Volume 2, Programmer's Manual; Volume 3, User's Manual; and Volume 4, Applications. The code's possible uses, capabilities and limitations are described in Volume 1 as well as in Volume 3.

  2. Software workstations; One-stop shopping for utilities

    SciTech Connect

    Ben-Yaacov, G. (Electric Power Research Inst. (US)); Hoffman, S.

    1990-12-01

    This paper reports that to help electric utilities use their software more efficiently, California's Electric Power Research Institute (EPRI) has been integrating groups of programs related to common engineering functions - for example, system grounding - into single packages. More than a dozen of these packages are already available. Almost a dozen more, in various stages of development in the Palo Alto institute's technical divisions, are scheduled to be ready between now and 1993. What they offer is one-stop shopping for software solutions. Whether a project involves designing a new transmission line, troubleshooting an equipment problem at a power plant, or planning for future generating needs, utilities have for many years used software to get the job done fast while keeping expenses down. More recent advances in computing power and software engineering have even accelerated the development of programs for utility applications.

  3. MRI Artifacts of a Metallic Stent Derived From a Human Aorta Specimen

    SciTech Connect

    Soto, M. E. [Departamento de Inmunologia, Instituto Nacional de Cardiologia, 14080 Mexico DF (Mexico); Flores, P. [Departamento de Instrumentacion Electromecanica, Instituto Nacional de Cardiologia, 14080 Mexico DF (Mexico); Marrufo, O.; Hidalgo, S. S.; Rodriguez, A. O. [Departamento de Ingenieria Electrica, Universidad Autonoma Metropolitana, Iztapalapa, 09340 (Mexico)

    2010-12-07

    Magnetic resonance imaging has proved to be a useful technique to get images of the whole body. However, the presence of ferromagnetic material can cause susceptibility artifacts, which result from microscopic gradients that occur near the boundaries between areas displaying different magnetic susceptibility. These gradients cause dephasing of spins and frequency shifts in the surrounding tissues. Intravoxel dephasing and spatial mis-registration can degrade image quality. An aorta with a metallic stent was preserved in formaldehyde at 10% inside acrylic cylinders and used to obtain MR images. We tested pulsed spin echo and gradient echo sequences to improve image quality. All experiments were performed on a 7T/21 cm Varian system (Varian, Inc, Palo Alto, CA) equipped with Direct Drive technology and a 16-rung birdcage coil transceiver. The presence of metallic stents produces a lack of signal that might give falsely reassuring appearances within the vessel lumen.

  4. Period change in GP And

    NASA Astrophysics Data System (ADS)

    Rodriguez, E.; Rolland, A.; Lopez de Coca, P.

    1993-05-01

    GP And is a high amplitude d Scuti type star with V~10.m75, DV~0.m55, P=0.d0787 and spectral type A3 (Lopez de Coca et al. 1990, A & A 83, 51). To study the stability of its fundamental pulsation we have carried out simultaneous uvby photometry of this star in the years 1987 and 1992 at Sierra Nevada and Caltar Alto observatories, both in Spain. Ten new times of light maxima were obtained. In total, forty-one time s of light maxima (from 1973 to 1992, collected from Splittgerber 1976, Mitt. Veraend. Sterne 7, 137; Eggen 1978, IBVS 1517; Gieseking et al. 1979, A & AS 36, 457; Burchi et al. 1992, Mem. Soc. Astron. Ital. 63, 87 and us) were used to determinate the ephemeris of the light curve of GP And by means of the classical O-C method.

  5. CARMENES at PPVI. CARMENCITA Herbs and Spices to Help you Prepare a Genuine Target Sample

    NASA Astrophysics Data System (ADS)

    Caballero, J. A.; Cortés-Contreras, M.; Alonso-Floriano, F. J.; López-Santiago, J.; Klutsch, A.; Montes, D.; Morales, J. C.; Abellán de Paco, F. J.; Amado, P. J.; Béjar, V. J. S.; Jeffers, S.; Mundt, R.; Quirrenbach, A.; Reiners, A.; Ribas, I.; Zechmeister, M.

    2013-07-01

    CARMENCITA, the CARMENES Cool star Information and daTa Archive, is the M-dwarf database from where we will choose our best target sample. As part of our guaranteed time observations, about 300 late-type M dwarfs will be monitored by CARMENES from Calar Alto during over 600 nights. CARMENCITA currently catalogues over 2000 carefully-selected M dwarfs northern of delta > -23 deg. For each star, we tabulate dozens of parameters (accurate astrometry, spectral typing, photometry in 20 bands from the ultraviolet to the mid-infrared, rotational and radial velocities, X-ray count rates and hardness ratios, close and wide multiplicity data and many more) compiled from the literature or measured by us with new data. The private on-line catalogue, including preparatory science observations (i.e., high-resolution imaging, low- and high-resolution spectroscopy), will be eventually public as a CARMENES legacy.

  6. A market study of the frozen fruit and vegetable industry

    E-print Network

    Bradley, James Russell

    1954-01-01

    958 62r307 8r290 llr335 8r325 6r164, 28r33$24r471 52r 806 6, 659 3 $713 14, 329 10r 953 20r656 36r355 30V&9V7 587 r101 1951 - ~ ~ ~ - " -" 195r541 32r947 12r723 5r803 54r807 li3r071 97e878 Sssp XeaL. Asparagus Bee as 2r786 5r086 1943...L obott1 ~ MO LIDISO alto)g S F UN institutional and industrial users& with only a fsw going thxough retail channels, The poundage packed has increased until in lp52 there wexw apymaixmtely I01q500&000 pounds paoJa4, Cherries are prooessed near ths xaw...

  7. Proyecto para la medición sistemática de seeing en CASLEO

    NASA Astrophysics Data System (ADS)

    Fernández Lajus, E.; Forte, J. C.

    La calidad del seeing astronómico es ciertamente uno de los parámetros mas importantes que caracterizan el sitio de un observatorio. Por tanto se desea determinar si el alto valor de seeing observado con el telescopio de 2.15 m se debe a efectos internos y/o del entorno a la cupula o si se debe simplemente al seeing propio del lugar. El actual mecanismo de refrigeración del espejo primario del 2.15, parece haber mejorado notablemente la calidad del seeing. Sin embargo se hace necesario saber hasta que punto el valor del seeing puede ser mejorado. La primera etapa del proyecto consistió en la puesta a punto del telescopio emplazado para este propósito y la adquisición de las primeras medidas tentativas de seeing.

  8. Electric Power Research Institute (EPRI) 2005 annual report

    SciTech Connect

    NONE

    2006-07-01

    The Electric Power Research Institute, with major locations in Palo Alto, California and Charlotte, North Carolina, is an independent, non-profit center for public interest energy and environmental research. The annual report highlights progress during 2005. Projects reported include: plug-in hybrid electric vehicle, intelligent universal transformer; air pollution toxicology research; and Ohio River ecological research. EPRI's Coal Fleet for Tomorrow initiative is described. This has provided the US Congress with an analysis of proposed financial incentives for the Energy Policy Act of 2005 and by developing plant design guidelines for integrated gasification combined cycle power plants. In 2006 the work will be extended to examine combustion systems designed for near-zero emissions. The report outlines EPRI's governance, includes its financial report up to 31 December 2005, and lists its members.

  9. High-resolution Lyman-alpha filtergrams of the sun

    NASA Technical Reports Server (NTRS)

    Bonnet, R. M.; Decaudin, M.; Bruner, E. C., Jr.; Acton, L. W.; Brown, W. A.

    1980-01-01

    The results of an experiment, conducted jointly by the Lockheed Palo Alto Research Laboratory and the Laboratoire de Physique Stellaire et Planetaire du CNRS, which investigated the transition-region plasma and the geometry of coronal active regions, in relation to models of the high-temperature layers, are presented. A Black Brant rocket was used to obtain 1-arc sec resolution L-alpha pictures of the sun, which revealed small scale features not seen previously at this wavelength, that delineate the geometry of the magnetic field in the chromosphere and in the corona. It is concluded that these observations might provide a new way of observing the upper chromosphere and corona, and that they provide direct evidence of the inhomogeneous character of the chromosphere and of the dominant role of the magnetic field

  10. Modular Robotics

    NSDL National Science Digital Library

    The Palo Alto Research Center (PARC) is a subsidiary of Xerox Corporation. One of its most intriguing areas of study is "modular reconfigurable robotics," which is a technology that allows a robot to take itself apart and put itself back together again in a new form. This lets the robot customize its design for a given task. Several different models of robots have been constructed at the PARC, and this Web site describes how they were built and how they function. There is a large collection of video clips that show each of the robots in operation, including one of a robot riding a tricycle. Two Java simulation programs can be downloaded that demonstrate the control systems of two of the PARC models. A long list of publication titles with abstracts is given, and the full text is available for a few of them.

  11. Auroral photography experiment. Report for June 1987-March 1988

    SciTech Connect

    Mende, S.B.

    1988-02-15

    Lockheed Palo Alto Research Laboratories is performing a joint experiment with AFGL to make observations of the aurora, airglow, shuttle-induced emission effects such as surface discharge, shuttle glow, and thruster-induced effects. In this program, the Air Force will be flying Lockheed instrumentation as a secondary payload on the shuttle, and will make observations through the orbiter windows with the specialized equipment. The hardware is essentially a re-flight of the Auroral Photography Experiment (APE) flown on mission 41-G. Current status of the program is : (1) All the Lockheed hardware was delivered to Johnson Space Center; (2) Most of the hardware has been qualified for flight; (3) Experiment Operation definition is in progress. (4) Data Analysis and scientific publication program is progressing with two papers submitted for publication. (fr)

  12. Patterned variation in prehistoric chiefdoms

    PubMed Central

    Drennan, Robert D.; Peterson, Christian E.

    2006-01-01

    Comparative study of early complex societies (chiefdoms) conjures visions of a cultural evolutionary emphasis on similarities and societal typology. Variation within the group has not been as systematically examined but offers an even more productive avenue of approach to fundamental principles of organization and change. Three widely separated trajectories of early chiefdom development are compared here: the Valley of Oaxaca (Mexico), the Alto Magdalena (Colombia), and Northeast China. Archaeological data from all three regions are analyzed with the same tools to reveal variation in human activities, relationships, and interactions as these change in the emergence of chiefly communities. Patterning in this variation suggests the operation of underlying general principles, which are offered as hypotheses that merit further investigation and evaluation in comparative study of a much larger number of cases. PMID:16473941

  13. Agilent 2100 bioanalyzer for restriction fragment length polymorphism analysis of the Campylobacter jejuni flagellin gene.

    PubMed

    Nachamkin, I; Panaro, N J; Li, M; Ung, H; Yuen, P K; Kricka, L J; Wilding, P

    2001-02-01

    The Agilent 2100 bioanalyzer (Agilent Technologies, Palo Alto, Calif.) utilizes capillary electrophoresis on a microchip device (LabChip 7500; Caliper Technologies, Mountain View, Calif.) that is capable of rapidly sizing small DNA fragments. To determine whether the system could replace conventional restriction fragment length polymorphism (RFLP) typing by agarose gel electrophoresis, we compared the analyzer with conventional flagellin RFLP for typing Campylobacter jejuni. Ninety-seven isolates representing 46 Fla types were initially analyzed. Correct Fla types were detected in 59% of the isolates. The major problem with the system was in resolving samples containing multiple DNA fragments differing from 8 to 20 bp. Overall, the bioanalyzer has the potential to replace conventional RFLP analysis by gel electrophoresis, but improvements in the chip separation are needed. PMID:11158144

  14. Sequential Determination of U and Th Decay Series in Santana Cave, Southwest Brazil

    NASA Astrophysics Data System (ADS)

    Silva, P. S. C.; Damatto, S. R.; Mazzilli, B. P.

    2008-08-01

    Parque Estadual Turístico do Alto Ribeira (PETAR) is located in the South-western part of São Paulo State, in the Ribeira Valley. In this national state park a large number of caves are found, which are among the most visited of the country. These caves, located in a karstic zone, are characterized by the presence of carbonaceous rocks frequently fractured and collapsed. Although, carbonates (dolomites and calcitic rocks) usually have low U content, this element can be found in the structure of the surrounding rocks. This paper aims to determine 238U, 234U, 226Ra and 210Pb concentration in samples of rock, soil, river water and sediment, in Santana cave. The radionuclide 238U was determined by alpha spectrometry using a surface barrier detector. 226Ra and 210Pb were determined by measuring the gross alpha and beta activity on a gas flow proportional counter.

  15. El contexto de la familia y el vecindario en la salud de los ancianos del estudio EPESE hispano

    PubMed Central

    Reyes-Ortiz, Carlos A.; Camacho, María E.; Eschbach, Karl; Markides, Kyriakos S.

    2014-01-01

    RESUMEN En este artículo se discute el papel de la familia y el vecindario en la salud de los ancianos méjico-americanos del estudio EPESE (Established Populations for Epidemiologic Studies of the Elderly) hispano. La paradoja epidemiológica consiste en que, a pesar de estar en desventaja socioeconómica, los ancianos hispanos tienen mortalidad relativamente menor que los ancianos de raza blanca. Esto es especialmente cierto cuando el anciano vive en los vecindarios donde hay un porcentaje alto de méjico-americanos. La familia también juega un papel importante en estos ancianos al disminuir el riesgo de institucionalización o de morbilidad. Asimismo, el estrés originado en problemas económicos o al depender económicamente de la familia, habiendo inmigrado en edades tardías, puede sobrepasar la capacidad de amortiguamiento del estrés y afectar la salud del anciano méjico-americano. PMID:25190897

  16. The computational structural mechanics testbed architecture. Volume 1: The language

    NASA Technical Reports Server (NTRS)

    Felippa, Carlos A.

    1988-01-01

    This is the first set of five volumes which describe the software architecture for the Computational Structural Mechanics Testbed. Derived from NICE, an integrated software system developed at Lockheed Palo Alto Research Laboratory, the architecture is composed of the command language CLAMP, the command language interpreter CLIP, and the data manager GAL. Volumes 1, 2, and 3 (NASA CR's 178384, 178385, and 178386, respectively) describe CLAMP and CLIP, and the CLIP-processor interface. Volumes 4 and 5 (NASA CR's 178387 and 178388, respectively) describe GAL and its low-level I/O. CLAMP, an acronym for Command Language for Applied Mechanics Processors, is designed to control the flow of execution of processors written for NICE. Volume 1 presents the basic elements of the CLAMP language and is intended for all users.

  17. 1.65?m (H-band) surface photometry of galaxies. II. Observations of 297 galaxies with the TIRGO 1.5m telescope.

    NASA Astrophysics Data System (ADS)

    Gavazzi, G.; Pierini, D.; Baffa, C.; Lisi, F.; Hunt, L. K.; Randone, I.; Boselli, A.

    1996-12-01

    We present near-infrared H-band (1.65?m) surface photometry of 297 galaxies (mostly) in the Coma Supercluster obtained with the Arcetri NICMOS3 camera, ARNICA, mounted on the Gornergrat Infrared Telescope. Magnitudes and diameters within the 21.5mag/arcsec^2^ isophote, concentration indices, and total H magnitudes are derived. Combining these observations with those obtained similarly using the Calar Alto telescopes (Paper I, 1996A&AS..120..489G) we find a strong positive correlation between the near-infrared concentration index and the galaxy H-band luminosity, and we analyze the consequent dependence of near-infrared growth-curves on H-band luminosity.

  18. VizieR Online Data Catalog: Galaxies morphology and IR photometry II. (Gavazzi+ 1996)

    NASA Astrophysics Data System (ADS)

    Gavazzi, G.; Pierini, D.; Baffa, C.; Lisi, F.; Hunt, L. K.; Randone, I.; Boselli, A.

    1996-05-01

    We present near-infrared H-band (1.65?m) surface photometry of 297 galaxies (mostly) in the Coma Supercluster obtained with the Arcetri NICMOS3 camera, ARNICA, mounted on the Gornergrat Infrared Telescope. Magnitudes and diameters within the 21.5mag/arcsec2 isophote, concentration indices, and total H magnitudes are derived. Combining these observations with those obtained similarly using the Calar Alto telescopes (Paper I, ) we find a strong positive correlation between the near-infrared concentration index and the galaxy H-band luminosity, and we analyze the consequent dependence of near-infrared growth-curves on H-band luminosity. For a description of the H band photometric system, see e.g. (2 data files).

  19. SANGRE DE CRISTO WILDERNESS STUDY AREA, COLORADO.

    USGS Publications Warehouse

    Johnson, Bruce R.; Ellis, Clarence E.

    1984-01-01

    Mineral surveys were undertaken of a wilderness study area which includes most of the Sangre de Cristo Range of south-central Colorado. Four areas of probable mineral-resource potential for gold, silver, and base metals lie along a northwest structural trend which follows the western margin of the range north of the Great Sand Dunes National Monument and crosses the range south of the monument. An area of probable mineral-resource potential for similar minerals plus tungsten has been identified east of Blanca Peak at the extreme southern end of the study area. Another area of probable mineral-resource potential includes molybdenum mineralization associated with the Rito Alto stock. A small area of probable geothermal resource potential exists on the west side of the area around the Valley View Hot Springs. There is little promise for the occurrence of oil and gas resources.

  20. CARMENES science preparation. High-resolution spectroscopy of M dwarfs

    NASA Astrophysics Data System (ADS)

    Montes, D.; Caballero, J. A.; Jeffers, S.; Alonso-Floriano, F. J.; Mundt, R.; CARMENES Consortium

    2015-05-01

    To ensure an efficient use of CARMENES observing time, and the highest chances of success, it is necessary first to select the most promising targets. To achieve this, we are observing 500 M dwarfs at high-resolution (R = 30,000-48,000), from which we determine the projected rotational velocity vsin{i} with an accuracy better than 0.5-0.2 km/s and radial-velocity stability better than 0.2-0.1 km/s. Our aim is to have at least two spectra at different epochs of the final 300 CARMENES targets. Our observations with FEROS at ESO/MPG 2.2 m La Silla, CAFE at 2.2 m Calar Alto and HRS at Hobby Eberly Telescope allow us to identify single- and double-line spectroscopic binaries and, especially, fast rotators, which should be discarded from the target list for exoplanet searches. Here we present preliminary results.

  1. COMET-AR User's Manual: COmputational MEchanics Testbed with Adaptive Refinement

    NASA Technical Reports Server (NTRS)

    Moas, E. (Editor)

    1997-01-01

    The COMET-AR User's Manual provides a reference manual for the Computational Structural Mechanics Testbed with Adaptive Refinement (COMET-AR), a software system developed jointly by Lockheed Palo Alto Research Laboratory and NASA Langley Research Center under contract NAS1-18444. The COMET-AR system is an extended version of an earlier finite element based structural analysis system called COMET, also developed by Lockheed and NASA. The primary extensions are the adaptive mesh refinement capabilities and a new "object-like" database interface that makes COMET-AR easier to extend further. This User's Manual provides a detailed description of the user interface to COMET-AR from the viewpoint of a structural analyst.

  2. Sequential Determination of U and Th Decay Series in Santana Cave, Southwest Brazil

    SciTech Connect

    Silva, P. S. C.; Damatto, S. R.; Mazzilli, B. P. [Centro de Metrologia das Radiacoes Instituto de Pesquisas Energeticas e Nucleares Av. Prof. Lineu Prestes 2242-Cidade Universitaria-CEP 05508 000 Sao Paulo (Brazil)

    2008-08-07

    Parque Estadual Turistico do Alto Ribeira (PETAR) is located in the South-western part of Sao Paulo State, in the Ribeira Valley. In this national state park a large number of caves are found, which are among the most visited of the country. These caves, located in a karstic zone, are characterized by the presence of carbonaceous rocks frequently fractured and collapsed. Although, carbonates (dolomites and calcitic rocks) usually have low U content, this element can be found in the structure of the surrounding rocks. This paper aims to determine {sup 238}U, {sup 234}U, {sup 226}Ra and {sup 210}Pb concentration in samples of rock, soil, river water and sediment, in Santana cave. The radionuclide {sup 238}U was determined by alpha spectrometry using a surface barrier detector. {sup 226}Ra and {sup 210}Pb were determined by measuring the gross alpha and beta activity on a gas flow proportional counter.

  3. Detection of the secondary eclipse of WASP-10b in the Ks-band

    NASA Astrophysics Data System (ADS)

    Cruz, Patricia; Barrado, David; Lillo-Box, Jorge; Diaz, Marcos; Birkby, Jayne; López-Morales, Mercedes; Hodgkin, Simon; Fortney, Jonathan J.

    2015-02-01

    Context. WASP-10b, a non-inflated hot Jupiter, was discovered around a K-dwarf in a near circular orbit (~0.06). Since its discovery in 2009, different published parameters for this system have led to a discussion about the size, density, and eccentricity of this exoplanet. Aims: In order to test the hypothesis of a circular orbit for WASP-10b, we observed its secondary eclipse in the Ks-band, where the contribution of planetary light is high enough to be detected from the ground. Methods: Observations were performed with the OMEGA2000 instrument at the 3.5 m telescope at Calar Alto (Almería, Spain), in staring mode during 5.4 continuous hours, with the telescope defocused, monitoring the target during the expected secondary eclipse. A relative light curve was generated and corrected from systematic effects, using the principal component analysis (PCA) technique. The final light curve was fitted using a transit model to find the eclipse depth and a possible phase shift. Results: The best model obtained from the Markov chain Monte Carlo analysis resulted in an eclipse depth of ?F of 0.137%+0.013%-0.019% and a phase offset of ?? of -0.0028 +0.0005-0.0004. The eclipse phase offset derived from our modeling has systematic errors that were not taken into account and should not be considered as evidence of an eccentric orbit. The offset in phase obtained leads to a value for | ecos? | of 0.0044. The derived eccentricity is too small to be of any significance. Based on observations collected at the Calar Alto Observatory, Almería, Spain.

  4. LONG-TERM MONITORING OF COMET 103P/HARTLEY 2

    SciTech Connect

    Lin, Z.-Y.; Ip, W.-H. [Institute of Astronomy, National Central University, Jhongli City, Taoyuan County 32001, Taiwan, Taiwan (China); Lara, L. M., E-mail: zylin@astro.ncu.edu.tw, E-mail: lara@iaa.csic.es [Instituto de Astrofisica de Andalucia (CSIC), Glorieta de la Astronomia s/n, ES-18008 Granada (Spain)

    2013-07-01

    We report the spectrophotometric, photometric, and imaging monitoring results of comet 103P/Hartley 2 obtained at the Lulin (1 m), Calar Alto (2.2 m), and Beijing Astronomical (2.16 m) observatories from 2010 April to December. We found that a dust feature in the sunward direction was detected starting from the end of September until the beginning of December (our last observation from the Lulin and Calar Alto observatories). Two distinct sunward jet features in the processed images were observed on October 11 and after October 29 until November 2. In parallel, the CN images reveal two asymmetrical jet features which are nearly perpendicular to the Sun-nucleus direction, these asymmetrical features imply that the comet was in a nearly side-on view in late October and early November. In addition to the jet features, the average result of the C{sub 2}-to-CN production rate ratio ranges from 0.7 to 1.5, consistent with 103P/Hartley 2 being of typical cometary chemistry. We found that the r{sub h} dependence for the dust production rate, Af{rho} (5000 km), is -3.75 {+-} 0.45 before perihelion and -3.44 {+-} 1.20 during the post-perihelion period. We detected higher dust reddening around the optocenter and decreased reddening along the sunward jet feature. We concluded that higher dust reddening could be associated with strong jet activity while lower dust reddening could be associated with the outburst or might imply changes in the optical properties. The average dust color did not appear to vary significantly as the comet passed through perihelion.

  5. New binary stars discovered by lunar occultations. VI.

    NASA Astrophysics Data System (ADS)

    Richichi, A.; Calamai, G.; Stecklum, B.

    2002-01-01

    We present additional results from our ongoing lunar occultation program. Observations are presented here for a total of seventeen sources, for the majority of which one or two new companions are detected. The sample comprises mostly field stars, spanning a large range of spectral types. Two infrared objects without optical counterpart are also included. The range of projected separations is 0farcs007 to 0farcs162 . We report on the following binary stars: IRAS 16576-2116, IRAS 19495-1628, IRAS 18033-1955, CGCS 3964, SAO 94064, EI Tau, SAO 93950, SAO 79217, SAO 79285 and SAO 80075. We found HD 247924 and SAO 139322 to be triple systems. In the case of SAO 93950, the revised analysis of two occultation events has provided the true position angle and separation of this system. We also observed the young T Tauri star GG Tau A, where we detected a significant orbital motion with respect to the latest available measurements. In two cases, SAO 79285 and SAO 139322, a companion was already claimed on the basis of Hipparcos results, but our observations are not entirely consistent with these latter. Finally, our sample includes four stars known to be binary, namely SAO 186497, SAO 162183, SAO 96753 and SAO 161192, for which we did not detect a companion. Among these, our negative detection of the companion of SAO 162183 poses strong constraints on the parameters of this presumed binary. Based on observations collected at TIRGO (Gornergrat, Switzerland), and at Calar Alto (Spain). TIRGO is operated by CNR-CAISMI Arcetri, Italy. Calar Alto is operated by the German-Spanish Astronomical Center.

  6. XMS and NG1dF: extreme multiplex spectrographs for wide-field multi-object spectroscopy

    NASA Astrophysics Data System (ADS)

    Content, Robert; Barden, Sam; Becerril, Santiago; Boehm, Armin; Clark, Paul; Costillo, Pedro; Dubbeldam, C. Mark; Farrell, Tony; Glazebrook, Karl; Haynes, Roger; Meisenheimer, Klaus; Miziarski, Stan; Nikoloudakis, Nikolaos; Prada, Luis Francisco; Rohloff, Ralf-Rainer; Shanks, Tom; Sharples, Ray M.; Wagner, Karl

    2010-07-01

    Two feasibility studies for spectrographs that can deliver at least 4000 MOS slits over a 1° field at the prime focuses of the Anglo-Australian and Calar Alto Observatories have been completed. We describe the design and science case of the Calar Alto eXtreme Multiplex Spectrograph (XMS) for which an extended study, half way between feasibility study and phase-A, was made. The optical design is quite similar than in the AAO study for the Next Generation 1 degree Field (NG1dF) but the mechanical design of XMS is quite different and much more developed. In a single night, 25000 galaxy redshifts can be measured to z~0.7 and beyond for measuring the Baryon Acoustic Oscillation (BAO) scale and many other science goals. This may provide a low-cost alternative to WFMOS for example and other large fibre spectrographs. The design features four cloned spectrographs which gives a smaller total weight and length than a unique spectrograph to makes it placable at prime focus. The clones use a transparent design including a grism in which all optics are about the size or smaller than the clone rectangular subfield so that they can be tightly packed with little gaps between subfields. Only low cost glasses are used; the variations in chromatic aberrations between bands are compensated by changing a box containing the grism and two adjacent lenses. Three bands cover the 420nm to 920nm wavelength range at 10A resolution while another cover the Calcium triplet at 3A. An optional box does imaging. We however also studied different innovative methods for acquisition without imaging. A special mask changing mechanism was also designed to compensate for the lack of space around the focal plane. Conceptual designs for larger projects (AAT 2º field, CFHT, VISTA) have also been done.

  7. Studying nearby disk galaxies with the CALIFA survey

    NASA Astrophysics Data System (ADS)

    Marino, R. A.; Gil de Paz, A.; Sánchez, S. F.; Castillo-Morales, A.

    2011-11-01

    CALIFA, the Calar Alto Legacy Integral Field Area survey, will provide the largest and most comprehensive wide-field IFU survey of galaxies carried out to date, combining the advantages of imaging and spectroscopy we will able to understand the origin for the observed diversity of galaxies, and the physical mechanisms -intrinsic and environmental- that are responsible for the differences as well as similarities between them. We will observe a statistically well-defined sample of ˜ 600 galaxies in the local universe (0.005 < z < 0.03) using 210 observing nights already awarded with the PMAS/PPAK integral field spectrophotometer, mounted on the Calar Alto 3.5 m telescope. PPAK offers a combination of extremely wide field-of-view (> 1 arcmin^2) with a high filling factor in one single pointing (65%), good spectral resolution, and wavelength sensitivity across the optical spectrum. The spectra will be covering the range 3700-7000 Å in two overlapping setups, one in the red (4300-7000 Å) at a spectral resolution of R ˜ 1000 and one in the blue (3700-5000 Å) at R ˜ 2000. The fully reduced and flux calibrated data of this legacy survey will be made available to the public. Some of definining science drivers for the CALIFA project are the star formation and the chemical history of galaxies; the study of the physical state of the interstellar medium; improve our knowledge on the stellar and gas kinematics in galaxies, and understand the influence of the AGNs on galaxy evolution. The CALIFA project comprises researchers from a large number of institutions worldwide: 8 institutions in Spain, 4 in Germany (CAHA funding countries) and 11 elsewhere, and includes a total of 56 researchers. CALIFA will provide a valuable bridge between large single-aperture surveys such as SDSS and more detailed studies of individual galaxies with PPAK (e.g. PINGS), SAURON, VIRUS-P, and other instruments.

  8. Volcanic history and 40Ar/39Ar and 14C geochronology of Terceira Island, Azores, Portugal

    USGS Publications Warehouse

    Calvert, A.T.; Moore, R.B.; McGeehin, J.P.; Rodrigues da Silva, A.M.

    2006-01-01

    Seven new 40Ar/39Ar and 23 new radiocarbon ages of eruptive units, in support of new geologic mapping, improve the known chronology of Middle to Late Pleistocene and Holocene volcanic activity on the island of Terceira, Azores and define an east-to-west progression in stratovolcano growth. The argon ages indicate that Cinco Picos Volcano, the oldest on Terceira, completed its main subaerial cone building activity by about 370-380??ka. Collapse of the upper part of the stratovolcanic edifice to form a 7 ?? 9??km caldera occurred some time after 370??ka. Postcaldera eruptions of basalt from cinder cones on and near the caldera floor and trachytic pyroclastic flow and pumice fall deposits from younger volcanoes west of Cinco Picos have refilled much of the caldera. The southern portion of Guilherme Moniz Volcano, in the central part of the island, began erupting prior to 270??ka and produced trachyte domes, flows, and minor pyroclastic deposits until at least 111??ka. The northern part of Guilherme Moniz Caldera is less well exposed than the southern part, but reflects a similar age range. The northwest portion of the caldera was formed sometime after 44??ka. Several well-studied ignimbrites that blanket much of the island likely erupted from Guilherme Moniz Volcano. The Pico Alto Volcanic Center, a tightly spaced cluster of trachyte domes and short flows, is a younger part of Guilherme Moniz Volcano. Stratigraphic studies and our new radiocarbon ages suggest that most of the Pico Alto eruptions occurred during the period from about 9000 to 1000??years BP. Santa Barbara Volcano is the youngest stratovolcano on Terceira, began erupting prior to 29??ka, and has been active historically. ?? 2006.

  9. Effects of acid mine effluent on sediment and water geochemistry, Ruttan Cu-Zn mine

    USGS Publications Warehouse

    Shilts, W.W.

    1996-01-01

    Waters were collected from the surface and bottom of four lakes as well as from the Churchill River and approximately 20 small ponds beside the Leaf Rapids-Ruttan mine-South Indian Lake road to determine geochemical variations related to tailings and waste rock disposal from the Ruttan Cu-Zn VHMS deposit. Using sonar profiling as a guide, grab samples and cores of sediments were also collected in Ruttan, Brehaut, Rusty, and Alto lakes to investigate the geochemical and sedimentological effects of liming the acid (pH 2.5) outflow from Ruttan Lake. Preliminary results indicate that metals anthropogenically enriched in Ruttan Lake (Zn, Cd, and Hg in particular) are scavenged and precipitated at the inflow end of Brehaut Lake as a result of adding lime solutions to the Vermilion River, midway through the 500 m reach that connects Ruttan Lake and Brehaut Lake. Zn in Ruttan Lake water (up to 17 ppm) is precipitated in the limey sediment. Zn is not enriched in waters of Rusty Lake, the next lake downstream from Brehaut Lake. Rusty Lake has Zn concentrations comparable to background water from Alto Lake (<10 ppb Zn). At present, liming appears to be controlling metal migration effectively, but a body of Zn-Cd-Hg-rich carbonate precipitate occupies the south end of Brehaut Lake which, without liming, would be receiving water of pH 2.5 from Ruttan Lake, resulting in a remobilization of metals. The related study also showed that Zn concentrations are elevated in water in contact with waste rock used to upgrade sections of the Leaf Rapids-South Indian Lake and Brehaut Lake roads.

  10. CARMENES instrument overview

    NASA Astrophysics Data System (ADS)

    Quirrenbach, A.; Amado, P. J.; Caballero, J. A.; Mundt, R.; Reiners, A.; Ribas, I.; Seifert, W.; Abril, M.; Aceituno, J.; Alonso-Floriano, F. J.; Ammler-von Eiff, M.; Antona Jiménez, R.; Anwand-Heerwart, H.; Azzaro, M.; Bauer, F.; Barrado, D.; Becerril, S.; Béjar, V. J. S.; Benítez, D.; Berdiñas, Z. M.; Cárdenas, M. C.; Casal, E.; Claret, A.; Colomé, J.; Cortés-Contreras, M.; Czesla, S.; Doellinger, M.; Dreizler, S.; Feiz, C.; Fernández, M.; Galadí, D.; Gálvez-Ortiz, M. C.; García-Piquer, A.; García-Vargas, M. L.; Garrido, R.; Gesa, L.; Gómez Galera, V.; González Álvarez, E.; González Hernández, J. I.; Grözinger, U.; Guàrdia, J.; Guenther, E. W.; de Guindos, E.; Gutiérrez-Soto, J.; Hagen, H.-J.; Hatzes, A. P.; Hauschildt, P. H.; Helmling, J.; Henning, T.; Hermann, D.; Hernández Castaño, L.; Herrero, E.; Hidalgo, D.; Holgado, G.; Huber, A.; Huber, K. F.; Jeffers, S.; Joergens, V.; de Juan, E.; Kehr, M.; Klein, R.; Kürster, M.; Lamert, A.; Lalitha, S.; Laun, W.; Lemke, U.; Lenzen, R.; López del Fresno, Mauro; López Martí, B.; López-Santiago, J.; Mall, U.; Mandel, H.; Martín, E. L.; Martín-Ruiz, S.; Martínez-Rodríguez, H.; Marvin, C. J.; Mathar, R. J.; Mirabet, E.; Montes, D.; Morales Muñoz, R.; Moya, A.; Naranjo, V.; Ofir, A.; Oreiro, R.; Pallé, E.; Panduro, J.; Passegger, V.-M.; Pérez-Calpena, A.; Pérez Medialdea, D.; Perger, M.; Pluto, M.; Ramón, A.; Rebolo, R.; Redondo, P.; Reffert, S.; Reinhardt, S.; Rhode, P.; Rix, H.-W.; Rodler, F.; Rodríguez, E.; Rodríguez-López, C.; Rodríguez-Pérez, E.; Rohloff, R.-R.; Rosich, A.; Sánchez-Blanco, E.; Sánchez Carrasco, M. A.; Sanz-Forcada, J.; Sarmiento, L. F.; Schäfer, S.; Schiller, J.; Schmidt, C.; Schmitt, J. H. M. M.; Solano, E.; Stahl, O.; Storz, C.; Stürmer, J.; Suárez, J. C.; Ulbrich, R. G.; Veredas, G.; Wagner, K.; Winkler, J.; Zapatero Osorio, M. R.; Zechmeister, M.; Abellán de Paco, F. J.; Anglada-Escudé, G.; del Burgo, C.; Klutsch, A.; Lizon, J. L.; López-Morales, M.; Morales, J. C.; Perryman, M. A. C.; Tulloch, S. M.; Xu, W.

    2014-07-01

    This paper gives an overview of the CARMENES instrument and of the survey that will be carried out with it during the first years of operation. CARMENES (Calar Alto high-Resolution search for M dwarfs with Exoearths with Near-infrared and optical Echelle Spectrographs) is a next-generation radial-velocity instrument under construction for the 3.5m telescope at the Calar Alto Observatory by a consortium of eleven Spanish and German institutions. The scientific goal of the project is conducting a 600-night exoplanet survey targeting ~ 300 M dwarfs with the completed instrument. The CARMENES instrument consists of two separate echelle spectrographs covering the wavelength range from 0.55 to 1.7 ?m at a spectral resolution of R = 82,000, fed by fibers from the Cassegrain focus of the telescope. The spectrographs are housed in vacuum tanks providing the temperature-stabilized environments necessary to enable a 1 m/s radial velocity precision employing a simultaneous calibration with an emission-line lamp or with a Fabry-Perot etalon. For mid-M to late-M spectral types, the wavelength range around 1.0 ?m (Y band) is the most important wavelength region for radial velocity work. Therefore, the efficiency of CARMENES has been optimized in this range. The CARMENES instrument consists of two spectrographs, one equipped with a 4k x 4k pixel CCD for the range 0.55 - 1.05 ?m, and one with two 2k x 2k pixel HgCdTe detectors for the range from 0.95 - 1.7?m. Each spectrograph will be coupled to the 3.5m telescope with two optical fibers, one for the target, and one for calibration light. The front end contains a dichroic beam splitter and an atmospheric dispersion corrector, to feed the light into the fibers leading to the spectrographs. Guiding is performed with a separate camera; on-axis as well as off-axis guiding modes are implemented. Fibers with octagonal cross-section are employed to ensure good stability of the output in the presence of residual guiding errors. The fibers are continually actuated to reduce modal noise. The spectrographs are mounted on benches inside vacuum tanks located in the coudé laboratory of the 3.5m dome. Each vacuum tank is equipped with a temperature stabilization system capable of keeping the temperature constant to within +/-0.01°C over 24 hours. The visible-light spectrograph will be operated near room temperature, while the near-IR spectrograph will be cooled to ~ 140 K. The CARMENES instrument passed its final design review in February 2013. The MAIV phase is currently ongoing. First tests at the telescope are scheduled for early 2015. Completion of the full instrument is planned for the fall of 2015. At least 600 useable nights have been allocated at the Calar Alto 3.5m Telescope for the CARMENES survey in the time frame until 2018. A data base of M stars (dubbed CARMENCITA) has been compiled from which the CARMENES sample can be selected. CARMENCITA contains information on all relevant properties of the potential targets. Dedicated imaging, photometric, and spectroscopic observations are underway to provide crucial data on these stars that are not available in the literature.

  11. Evaluation of delivered monitor unit accuracy of gated step-and-shoot IMRT using a two-dimensional detector array

    SciTech Connect

    Cheong, Kwang-Ho; Kang, Sei-Kwon; Lee, MeYeon; Kim, Su SSan; Park, SoAh; Hwang, Tae-Jin; Kim, Kyoung Ju; Oh, Do Hoon; Bae, Hoonsik; Suh, Tae-Suk [Department of Radiation Oncology, Hallym University College of Medicine, Seoul, 431070 (Korea, Republic of) and Department of Biomedical Engineering, College of Medicine, Catholic University of Korea, Seoul 137701 (Korea, Republic of); Department of Radiation Oncology, Hallym University College of Medicine, Seoul 431070 (Korea, Republic of); Department of Biomedical Engineering, College of Medicine, Catholic University of Korea, Seoul 137701 (Korea, Republic of)

    2010-03-15

    Purpose: To overcome the problem of organ motion in intensity-modulated radiation therapy (IMRT), gated IMRT is often used for the treatment of lung cancer. In this study, the authors investigated the accuracy of the delivered monitor units (MUs) from each segment during gated IMRT using a two-dimensional detector array for user-specific verification purpose. Methods: The authors planned a 6 MV photon, seven-port step-and-shoot lung IMRT delivery. The respiration signals for gated IMRT delivery were obtained from the one-dimensional moving phantom using the real-time position management (RPM) system (Varian Medical Systems, Palo Alto, CA). The beams were delivered using a Clinac iX (Varian Medical Systems, Palo Alto, CA) with the Millennium 120 MLC. The MatriXX (IBA Dosimetry GmbH, Germany) was validated through consistency and reproducibility tests as well as comparison with measurements from a Farmer-type ion chamber. The authors delivered beams with varying dose rates and duty cycles and analyzed the MatriXX data to evaluate MU delivery accuracy. Results: There was quite good agreement between the planned segment MUs and the MUs computed from the MatriXX within {+-}2% error. The beam-on times computed from the MatriXX data were almost identical for all cases, and they matched well with the RPM beam-on and beam-off signals. A slight difference was observed between them, but it was less than 40 ms. The gated IMRT delivery demonstrated an MU delivery accuracy that was equivalent to ungated IMRT, and the delivered MUs with a gating signal agreed with the planned MUs within {+-}0.5 MU regardless of dose rate and duty cycle. Conclusions: The authors can conclude that gated IMRT is able to deliver an accurate dose to a patient during a procedure. The authors believe that the methodology and results can be transferred to other vendors' devices, particularly those that do not provide MLC log data for a verification purpose.

  12. Geophysical signatures of the alkaline intrusions bordering the Paraná Basin

    NASA Astrophysics Data System (ADS)

    Marangoni, Yara R.; Mantovani, Marta S. M.

    2013-01-01

    Alkaline intrusions at the edges of the Paraná Basin are mostly grouped in provinces, but occur in a few cases as isolated bodies. All of these intrusions surround the edge of the basin and intrude into weak zones, such as belts and arches. In rare cases, the intrusions are covered by basin sediments, but they are mainly found in the exposed crystalline basement. In this study, we discuss the gravimetric and magnetic signatures of the alkaline intrusions in the Ponta Grossa Arch, Alto Paranaíba and Goiás provinces. The provinces ages range from 120 to 60 Ma, and are thus contemporary or subsequent to the Serra Geral magmatic event. The magnetic signature of the province intrusions indicates a strong residual magnetization, as observed on maps of the anomalies reduced to the pole, which were different from the anomalies resulting only from induced field. The residual magnetization was often verified by magnetic measurements in the laboratory. Some of the studied intrusions have reverse magnetization. Other intrusions shows two magnetization directions, normal and reverse, indicating the likely presence of carbonatite. With the exception of the intrusions containing carbonatite, anomalies reduced to the pole are characterized by highly concentrated magnetization and well-defined 3D geometry. Intrusions with carbonatite usually exhibit dual polarization. The gravimetric signature is a positive anomaly of great magnitude. When carbonatite is present, a negative anomaly within the positive anomaly is observed, where the negative anomaly is associated with carbonatite. The gravimetric anomalies are also highly localized, indicative of 3D bodies. Gravimetric and aeromagnetic maps of the provinces show a coincidence between the location of the mapped intrusions and the anomalies. These maps also show anomalies that have the same signature but are not related to the mapped outcrops. This result suggests that these anomalies are indicative of the presence of alkaline intrusions that are covered by sediments (from either the Paraná Basin or alluvial sources) or are not emergent from the basement. The analysis of these maps and the inversion of the anomalies allows inference of the subsurface geometry, and thus also calculation of the body volume and its emplacement mechanism, which are elements necessary for mineral deposit evaluation. The maps also allow the identification of pre-existing faults and those formed during the emplacement. We compare geophysical models developed for gravimetric and magnetic data for the intrusions of the Ponta Grossa Arch, Alto Paranaíba and Goiás provinces in order to identify physical similarities and differences in the alkaline intruded into lithospheric segments with different tectonic histories.

  13. Fog Collection and Sustainable Architecture in Atacama Coast

    NASA Astrophysics Data System (ADS)

    Suau, C.

    2010-07-01

    It is imperative to integrate renewable energy and climate into zero-carbon buildings in arid lands, particularly when it is reinforced by natural and social science-based innovation in natural and built environs. The aim is twofold: On one hand, to establish potential natural and urban habitats and their yields required in different scales of intervention and, on another hand, augment rate and yield of fog collection used for drinking and irrigation in chosen locations. The purpose of this study is to integrate zero-carbon energy, landscape and sustainable architecture as a whole and thus envision potential inhabitation through self-sufficient space-frame configurations along the coast of Tarapacá Region in Chile. In a sequential way, this study distinguishes three scales of interventions: A. Territorial scale. It consists of rural and natural zones along the shore of Tarapacá Region: Fog oases, creeks or corridors. The strategic allocation of large fog collectors can bring local agriculture back and thus stop rural emigration; and also repair existing fragile ecosystems in several fog oases by harvesting and distributing mainly crop water. B. Local scale. The space-frame fog collectors are allocated in Alto Patache (fog oasis) and Iquique city (low-income sprawl of Alto Hospicio). These artefacts can supply both water and electricity to small communities through forestation, sustainable micro-agriculture and complementary electrification. C. Domestic scale. It consists of the design of autonomous housing configuration based in polygonal space-frames. This inhabitable unit is modular, deployable and lightweight; with an adjustable polyvalent membrane which performs as water repellent skin (facing South and SW winds) and shading device facing Equator. In addition, a domestic wind turbine is installed within the structural frame to provide autonomous electrification. Water collector, filtering (purification) and irrigation network is designed with available materials and local techniques. This research integrates climatic, structural and constructional factors by employing agile space-frame configurations; implementing appropriate low-passive energy technologies and testing hydrophobic and durable fabrics. The overall design target will upgrade the following aspects: 1. Increasing rate and yield of advection fog that can be anticipated from the fog harvesting rate and the uncertainty of climatic conditions 2. Structural reinforcement of fog collectors through lightweight, modular and deployable space-frames 3. Reducing installation and maintenance of fog collection 4. Purification of drinking water due to concentrations of pollutants 5. Lowering frame impacts on ground and surrounding mainly in lomas The methods mainly consists of literature review; fieldwork; comparative analysis of existing fog collection’s techniques and climatic design simulations.

  14. Rigorous noise test and calibration check of strong-motion instrumentation at the Conrad Observatory in Austria.

    NASA Astrophysics Data System (ADS)

    Steiner, R.; Costa, G.; Lenhardt, W.; Horn, N.; Suhadolc, P.

    2012-04-01

    In the framework of the European InterregIV Italy/Austria project: "HAREIA - Historical and Recent Earthquakes in Italy and Austria" the Central Institute for Meteorology and Geodynamics (ZAMG) and Mathematic and Geosciences Department of University of Trieste (DMG) are upgrading the transfrontier seismic network of South-Eastern Alps with new 12 accelerometric stations to enhance the strong motion instrument density near the Austria/Italy border. Various public institutions of the provinces Alto Adige (Bolzano Province), Veneto (ARPAV) and Friuli Venezia Giulia (Regional Civil Defense) in Italy and in the Austrian province of Tyrol are involved in the project. The site selection was carried out to improve the present local network geometry thus meeting the needs of public Institutions in the involved regions. In Tyrol and Alto Adige some strategic buildings (hospitals and public buildings) have been selected, whereas in Veneto and Friuli Venezia Giulia the sites are in the free field, mainly located near villages. The instruments will be installed in an innovative box, designed by ZAMG, that provides electric and water isolation. The common choice regarding the instrument selection has been the new Kinemetrics Basalt ® accelerograph to guarantee homogeneity with the already installed instrumentation and compatibility with the software already in use at the different seismic institutions in the area. Prior to deployment the equipment was tested at the Conrad Observatory and a common set-up has been devised. The Conrad Observatory, seismically particularly quiet, permits to analyze both the sensor and the acquisition system noise. The instruments were connected to the network and the data sent in real-time to the ZAMG data center in Vienna and the DMG data center in Trieste. The data have been collected in the database and analyzed using signal processing modules PQLX and Matlab. The data analysis of the recordings at the ultra-quiet Conrad Observatory pointed out some differences in the seismic response of the 12 instruments, mainly within the tolerance stated by the factory, and an optimization of a few sensors can be carried out in order to guarantee compatible high quality measurements.

  15. Magmatism along the high Paraguay River at the border of Brazil and Paraguay: A review and new constraints on emplacement ages

    NASA Astrophysics Data System (ADS)

    Comin-Chiaramonti, P.; Gomes, C. B.; De Min, A.; Ernesto, M.; Gasparon, M.

    2015-03-01

    The magmatic rocks from Alto Paraguay (High Paraguay River extensional lineament), western Apa craton, mainly consist of several major circular alkaline complexes and some rhyolitic domes and ignimbrites. The former are characterized by intrusive Na-alkaline rock-types (nepheline syenites and syenites and effusive equivalents) topped by lava flows and ignimbrites. Two main evolved suites were defined using petrochemical and Sr- isotope data: an agpaitic suite in the north and a miaskitic suite in the south. The domes of subalkaline rhyolitic lavas and ignimbrites occur to the north of the alkaline complexes, along the Paraguay River, near the town of Fuerte Olimpo. The emplacement ages of the alkaline complexes were constrained using the K-Ar, Ar-Ar, Rb-Sr and Sm-Nd dating methods on whole rocks and/or mineral separates (amphibole, alkali feldspar and biotite). Ages are quite variable (Upper Permian to Middle Triassic), with average K-Ar and Ar-Ar ages of 248.8 ± 4.8 and 241.8 ± 1.1 Ma, respectively, and Rb-Sr and Sm-Nd age data giving best values from 248 ± 4 to 244 ± 27 Ma and from 256 ± 3 to 257 ± 3 Ma, respectively. In contrast, the Fuerte Olimpo volcanics show a Mesoproterozoic age (1.3 Ga, K-Ar and Ar-Ar radiometric methods; and 1.42 ± 0.24 to 1.30 ± 0.03 Ga, Rb-Sr and Sm-Nd methods, respectively). Rb-Sr systematics (87Sr/86Sr initial ratios ? 0.7038) highlight a relatively "primitive" character of the Na-alkaline magmatic source(s), in contrast with the "crustal" values (87Sr/86Sr initial ratio ? 0.7105) of the Fuerte Olimpo rhyolites. Thus, magmatism in the Alto Paraguay area is related to two extensional events: a younger event corresponding to the Permian-Triassic alkaline rocks, and an older event connected to the Precambrian volcanic acidic rocks.

  16. Application of CloudSat cloud classification maps and MODIS multi-spectral satellite imagery in identifying false rain from satellite images

    NASA Astrophysics Data System (ADS)

    Nasrollahi, N.; Hsu, K.; Sorooshian, S.

    2011-12-01

    In recent years, the emergence of various satellite-based precipitation products with high spatial resolutions and global coverage has resulted in new sources of uninterrupted precipitation estimates. However, due to lack of information on the associated uncertainties and reliability of these products, they are not well integrated into operational and decision making applications. Comparing in-situ rain measurements with satellite precipitation data reveals considerable false alarm in satellite precipitation measurements in the presence of high cold clouds. In this study, application of multi-spectral satellite imagery from MODIS and CloudSat cloud classification maps is investigated to identify false rain detection in satellite precipitation products (e.g., PERSIANN). Moderate Resolution Imaging Spectroradiometer (MODIS) instrument aboard NASA Earth Observing System Aqua and Terra platform with 36 spectral bands provides valuable information about cloud microphysical characteristics. Additionally, CloudSat, a NASA Earth Sciences Systems Pathfinder (ESSP) mission, is designed to measure vertical structure of clouds from space. The CloudSat radar flies in formation with Aqua with only an average of about 60 s delay. The availability of cloud classes based on CloudSat CLDCLASS product together with multi-spectral capabilities of MODIS makes it possible to create a training data set to distinguish different types of clouds based on their radiances. The training data set is employed to identify high non-precipitating clouds such as cirrus and alto-stratus and remove false precipitation signals in PERSIANN satellite precipitation product. Based on the training data (July 10, 2008 until Sept 10, 2008) more than 12000 single layer cloudy pixels with their spectral characteristics are investigated. In this data set the brightness temperature difference of 8.5 and 11 micrometer channels (BTD[8.5-11]) for cirrus and altos-stratus clouds are more than 2K and 1K respectively. Both of these types of clouds are non-precipitating high that are often miss identified as light rain in the PERSIANN infrared based precipitation algorithm. Finding all pixels with BTD[8.5-11] greater than 1K, the non-precipitating high clouds can be identifies and the estimated precipitation can be removed from the precipitation algorithm. The results suggest a significant improvement in detecting non-precipitating clouds and reducing false precipitation in comparison with radar-based gauge adjusted data over the United States.

  17. CALIFA: a diameter-selected sample for an integral field spectroscopy galaxy survey

    NASA Astrophysics Data System (ADS)

    Walcher, C. J.; Wisotzki, L.; Bekeraité, S.; Husemann, B.; Iglesias-Páramo, J.; Backsmann, N.; Barrera Ballesteros, J.; Catalán-Torrecilla, C.; Cortijo, C.; del Olmo, A.; Garcia Lorenzo, B.; Falcón-Barroso, J.; Jilkova, L.; Kalinova, V.; Mast, D.; Marino, R. A.; Méndez-Abreu, J.; Pasquali, A.; Sánchez, S. F.; Trager, S.; Zibetti, S.; Aguerri, J. A. L.; Alves, J.; Bland-Hawthorn, J.; Boselli, A.; Castillo Morales, A.; Cid Fernandes, R.; Flores, H.; Galbany, L.; Gallazzi, A.; García-Benito, R.; Gil de Paz, A.; González-Delgado, R. M.; Jahnke, K.; Jungwiert, B.; Kehrig, C.; Lyubenova, M.; Márquez Perez, I.; Masegosa, J.; Monreal Ibero, A.; Pérez, E.; Quirrenbach, A.; Rosales-Ortega, F. F.; Roth, M. M.; Sanchez-Blazquez, P.; Spekkens, K.; Tundo, E.; van de Ven, G.; Verheijen, M. A. W.; Vilchez, J. V.; Ziegler, B.

    2014-09-01

    We describe and discuss the selection procedure and statistical properties of the galaxy sample used by the Calar Alto Legacy Integral Field Area (CALIFA) survey, a public legacy survey of 600 galaxies using integral field spectroscopy. The CALIFA "mother sample" was selected from the Sloan Digital Sky Survey (SDSS) DR7 photometric catalogue to include all galaxies with an r-band isophotal major axis between 45'' and 79.2'' and with a redshift 0.005 < z < 0.03. The mother sample contains 939 objects, 600 of which will be observed in the course of the CALIFA survey. The selection of targets for observations is based solely on visibility and thus keeps the statistical properties of the mother sample. By comparison with a large set of SDSS galaxies, we find that the CALIFA sample is representative of galaxies over a luminosity range of -19 > Mr > -23.1 and over a stellar mass range between 109.7 and 1011.4 M?. In particular, within these ranges, the diameter selection does not lead to any significant bias against - or in favour of - intrinsically large or small galaxies. Only below luminosities of Mr = -19 (or stellar masses <109.7 M?) is there a prevalence of galaxies with larger isophotal sizes, especially of nearly edge-on late-type galaxies, but such galaxies form <10% of the full sample. We estimate volume-corrected distribution functions in luminosities and sizes and show that these are statistically fully compatible with estimates from the full SDSS when accounting for large-scale structure. For full characterization of the sample, we also present a number of value-added quantities determined for the galaxies in the CALIFA sample. These include consistent multi-band photometry based on growth curve analyses; stellar masses; distances and quantities derived from these; morphological classifications; and an overview of available multi-wavelength photometric measurements. We also explore different ways of characterizing the environments of CALIFA galaxies, finding that the sample covers environmental conditions from the field to genuine clusters. We finally consider the expected incidence of active galactic nuclei among CALIFA galaxies given the existing pre-CALIFA data, finding that the final observed CALIFA sample will contain approximately 30 Sey2 galaxies. Based on observations collected at the Centro Astronómico Hispano Alemán (CAHA) at Calar Alto, operated jointly by the Max Planck Institute for Astronomy and the Instituto de Astrofísica de Andalucía (CSIC). Publically released data products from CALIFA are made available on the webpage http://www.caha.es/CALIFA

  18. Hydrogeological studies in high mountains karst environment: the example of Picos de Europa (Spain)

    NASA Astrophysics Data System (ADS)

    Meléndez, Mónica; Ballesteros, Daniel; Jiménez-Sanchez, Montserrat; García-Sansegundo, Joaquín

    2015-04-01

    Karst aquifers are very vulnerable to contamination due their high infiltration coefficient, elevated hydraulic conductivity, high speed of circulation, and very low self-purification capacities. The functioning of that type of aquifer is quite complicated by the high heterogeneity and anisotropy of the karst and the presence of three different types of porosity. It is necessary to understand the functioning of a karst aquifer in order to protect and manage them properly. Therefore, it is necessary to develop working methods to establish the aquifer hydrodynamics, especially in high mountain areas with many methodological constrains (e. g. difficulty to access). The Picos de Europa karst aquifer, located in theNational Park of Picos de Europa (North Spain), presents a high environmental, geomorphological and hydrogeological value; it is included in the "Spanish geological contexts with global relevance" by the Law of Natural Heritage and Biodiversity of Spain, being considered as a Global Geosite by the Geological and Mining Institute of Spain. In addition, the karst massif is included in several figures of environmental protection, both at global and national levels. Hydrogeological and geomorphological research is developed together in this area under the GEOCAVE project (MAGRAMA-580/12 OAPN) and the "Investigación hidrogeológica en las masas de agua subterránea 012.014 Picos de Europa-Panes y 012.018 Alto Deva-Alto Cares. (IGME-73.3.00.41.00/2013)". The aim of this study is to characterize the hydrodynamics of the karst aquifer, considering the snow as an important component of the aquifer recharge. The proposed methodology includes the installation of an integrated pressure sensor and data logger for level and temperature measurement in two karst spring related to two groundwater bodies (GWB) with 86 and 14 km2 extension. The store of data to regular intervals with punctual values of discharge measures has provided, at least, an annual series of data in which level water differences varies from 4.5 m in the largest GWB to 1 m in the smallest one. The comparison of this data series with precipitation data allows to study the aquifer response to precipitation and to stablish the importance of the snow melting in the recharge of the aquifer.

  19. Interaction between regional and local tectonic forcing along a complex Quaternary extensional basin: Upper Tiber Valley, Northern Apennines, Italy

    NASA Astrophysics Data System (ADS)

    Pucci, S.; Mirabella, F.; Pazzaglia, F.; Barchi, M. R.; Melelli, L.; Tuccimei, P.; Soligo, M.; Saccucci, L.

    2014-10-01

    In extending areas undergoing regional tectonic uplift, the persistence of subsidence at a normal-fault hanging-wall depends on the competition between regional and local tectonic effects. When regional uplift exceeds the subsidence of the hanging-wall block, denudation prevails at both the hanging-wall and the foot-wall. When local tectonic subsidence exceeds regional uplift, sedimentation occurs over the hanging-wall block, supplied by foot-wall erosion. We analyzed a Pliocene-Quaternary continental basin, currently crossed by the Tiber River in Italy. The tectono-sedimentary evolution of the basin developed at the hanging-wall of a regional low-angle extensional detachment, the Alto Tiberina Fault, in the axial region of the Northern Apennines of Italy. This area is affected by regional uplift on the order of 0.5-1.0 mm/yr. The present-day activity of the fault is revealed by both microseismicity and geodetic (GPS) data. We investigated the mid- (10-100 ka) and long-term (0.5-3.0 Ma) evolution of the three depocenters by studying the continental Pleistocene succession infilling the basin as well as fluvial terraces and higher paleosurfaces carved into the Pleistocene deposits. By using surficial geologic data and an interpretation of a set of seismic reflection profiles, we show that the three depocenters experienced a fairly similar evolution during the Pliocene-Early Pleistocene, when a 1000-m-thick continental succession was deposited. On the contrary, geomorphological observations indicate that, at the beginning of the Middle Pleistocene, a switch occurred in the evolution of the three depocenters. In the northernmost Sansepolcro sub-basin, bounding normal faults are active and hanging-wall subsidence outpaces regional uplift. Concurrently, in the Umbertide and Ponte Pattoli sub-basins uplift dominates over the hanging-wall subsidence, promoting river incision and exhumation of the Pleistocene deposits. For these two depocenters, by means of terrace-river correlations, we estimate that the incision rate is ?0.3-0.35 mm/yr, suggesting a maximum tectonic subsidence of 0.2 mm/yr. The identification of a heterogeneous uplift pattern along the hanging-wall of the Alto Tiberina Fault, driven by different displacement rates of its fault splays, allowed us to characterize fault segments with different activities and, possibly, different seismic behaviors.

  20. CARMENES input catalogue of M dwarfs. I. Low-resolution spectroscopy with CAFOS

    NASA Astrophysics Data System (ADS)

    Alonso-Floriano, F. J.; Morales, J. C.; Caballero, J. A.; Montes, D.; Klutsch, A.; Mundt, R.; Cortés-Contreras, M.; Ribas, I.; Reiners, A.; Amado, P. J.; Quirrenbach, A.; Jeffers, S. V.

    2015-05-01

    Context. CARMENES is a stabilised, high-resolution, double-channel spectrograph at the 3.5 m Calar Alto telescope. It is optimally designed for radial-velocity surveys of M dwarfs with potentially habitable Earth-mass planets. Aims: We prepare a list of the brightest, single M dwarfs in each spectral subtype observable from the northern hemisphere, from which we will select the best planet-hunting targets for CARMENES. Methods: In this first paper on the preparation of our input catalogue, we compiled a large amount of public data and collected low-resolution optical spectroscopy with CAFOS at the 2.2 m Calar Alto telescope for 753 stars. We derived accurate spectral types using a dense grid of standard stars, a double least-squares minimisation technique, and 31 spectral indices previously defined by other authors. Additionally, we quantified surface gravity, metallicity, and chromospheric activity for all the stars in our sample. Results: We calculated spectral types for all 753 stars, of which 305 are new and 448 are revised. We measured pseudo-equivalent widths of H? for all the stars in our sample, concluded that chromospheric activity does not affect spectral typing from our indices, and tabulated 49 stars that had been reported to be young stars in open clusters, moving groups, and stellar associations. Of the 753 stars, two are new subdwarf candidates, three are T Tauri stars, 25 are giants, 44 are K dwarfs, and 679 are M dwarfs. Many of the 261 investigated dwarfs in the range M4.0-8.0 V are among the brightest stars known in their spectral subtype. Conclusions: This collection of low-resolution spectroscopic data serves as a candidate target list for the CARMENES survey and can be highly valuable for other radial-velocity surveys of M dwarfs and for studies of cool dwarfs in the solar neighbourhood. Full Tables A.1, A.2, and A.3 are only available at the CDS via anonymous ftp to http://cdsarc.u-strasbg.fr (ftp://130.79.128.5) or via http://cdsarc.u-strasbg.fr/viz-bin/qcat?J/A+A/577/A128

  1. Shift Variance In Digital Radiographic Imaging Systems As A Source Of Error In Contrast Detail Measurements

    NASA Astrophysics Data System (ADS)

    Bencomo, Jose A.; Marsh, Lee M.; Morgan, Tommie J.; Cole, Arthur; Willis, Charles E.

    1985-06-01

    The effects of the total inherent digital imaging system shift variance on the perception of image details were investigated. These effects are particularly important in clinical digital imaging systems when the sampling aperture is comparable to or greater than the resolution dimensions (width of the point spread function) of the input images. The total system shift variance of a commercial digital imaging system, System One, DigiRad, Inc. (Palo Alto, CA), was quantified using a multiple high contrast bar pattern image. The square wave response functions (SWRF) of several nominally randomly selected locations on the displayed images were obtained and linearized by the logit transformation. The Coltman equation was then used to calculate the corresponding modulation transfer functions. Contrast detail (CD) diagrams were obtained using images of Burger-Rose phantoms for different relative positions of the input images with respect to the sampling pixel matrix. The effects of the shift variance on the CD diagrams were found to depend not only on the relative location of the image with respect to the pixel matrix but also on the input image quality. Further studies need to be performed to assess the clinical importance of the inherent shift variance on clinical digital imaging systems.

  2. Characterization (environmental Signature) and Function of the Main Instrumented (monitoring Water Quality Network in Real Time) Rivers Atoyac and Zahuapan in High Atoyac Basin; in Dry, Rain and Winter Season 2013-2014; Puebla-Tlaxcala Mexico

    NASA Astrophysics Data System (ADS)

    Tavera, E. M.; Rodriguez-Espinosa, P. F.; Morales-Garcia, S. S.; Muñoz-Sevilla, N. P.

    2014-12-01

    The Zahuapan and Atoyac rivers were characterized in the Upper Atoyac through the integration of physical and chemical parameters (environmental firm) determining the behavior and function of the basin as a tool for measuring and monitoring the quality and management of water resources of the water in one of the most polluted rivers in Mexico. For the determination of the environmental signature proceeded to characterize the water through 11 physicochemical parameters: temperature (T), potential hydrogen (pH), dissolved oxygen (DO), spectral absorption coefficient (SAC), the reduction of oxide potential (ORP), turbidity (Turb), conductivity (l), biochemical oxygen demand in 5 days (BOD5), chemical oxygen demand (COD), total suspended solids (TSS) and total dissolved solids (TDS ), which were evaluated in 49 sites in the dry season, 47 for the rainy season and 23 for the winter season in the basin and Atoyac Zahuapan Alto Atoyac, Puebla-Tlaxcala, Mexico river; finding a mathematical algorithm to assimilate and better represent the information obtained. The algorithm allows us to estimate correlation greater than 0.85. The results allow us to propose the algorithm used in the monitoring stations for purposes of processing information assimilated form.This measurement and monitoring of water quality supports the project, the monitoring network in real time and the actions to clean up Atoyac River, in the urban area of the city of Puebla.

  3. Calibration and Tesing of the Tunable Filter on Solar B

    NASA Astrophysics Data System (ADS)

    Shine, R. A.; Title, A. M.; Tarbell, T. D.; Mitchell, K.; Tavarez, L.; Rosenberg, W.

    2005-05-01

    The tunable filter in the Focal Plane Package (FPP) on the Japanese Solar B satellite, scheduled for launch in August 2006, was designed, built, and tested at the Lockheed Martin Advanced Technology Center (LMATC). It is an eight element wide field calcite filter (an improved Lyot type) with a spectral resolution of about 100mÅ and a tuning range of 11.87Å at 6302Å. Using 6 prefilters, it operates in bands covering the 5172Å Fe I, 5250Å Fe I, 5576Å Fe I, 5896Å Na I, 6302Å Fe I, and 6563Å H I lines. Here we describe the testing and calibrations used to determine the tuning parameters as functions of temperature and wavelength for the six bands. We also measure performance using sunlight and laser sources in a standalone mode and integrated into the FPP package. Images and derived magnetograms and Dopplergrams using a low resolution solar image have also been obtained while attached to the Solar B telescope and using a heliostat at the LMATC in Palo Alto. In the course of this work we have also refined the mathematical description for these types of filters, especially the error terms that arise from residual misalignments. In particular, we now believe we understand the intensity oscillations seen in this and earlier Lyot tunable filters.

  4. ULF Pulsations, Air Conductivity Changes, and Infrared (IR) Radiation Signatures Observed Prior to the 2008 Alum Rock (California) M5.4 Earthquake

    NASA Astrophysics Data System (ADS)

    Bleier, T. E.; Dunson, C.; Maniscalco, M.; Bryant, N.; Bambery, R.

    2008-12-01

    A collaboration between QuakeFinder (Palo Alto) and NASA JPL utilized both ground and space instruments to observe a series of electromagnetic (EM) signals detected up to 2 weeks prior to the Oct 30, 2007 Alum Rock, California, M5.4 earthquake. These signals included Ultra Low Frequency (ULF: 0.01 to 12 Hz) pulsations that were detected with a 3 axis induction magnetometer located 2 km from the epicenter. The 1- 12 sec wide pulsations were 10-50 times more intense than 2 year normal background noise levels, and the pulsations occurred 10-30 times more frequently in the 2 weeks prior to the quake than the average pulse count for the 1.8 years prior. The air conductivity sensor at the same site saturated for much of the evening prior to the quake. The conductivity levels were compared to the previous year's average conductivity patterns at the site, and determined not to be caused by moisture contamination. The GOES-West weather satellite typically observes the west coast of California, and during October of 2007, detected an area almost 100km around the quake that changed the usual night time cooling rate (a 4 year average negative temperature slope) to a positive slope during the night time for much of the 2 weeks prior to the quake. These EM signals were then compared against predictions based on several earthquake theories postulated during recent years.

  5. CARMENES ultra-stable cooling system: very promising results

    NASA Astrophysics Data System (ADS)

    Mirabet, E.; Carvas, P.; Lizon, J.-L.; Becerril, S.; Rodríguez, E.; Abril, M.; Cárdenas, M. C.; Morales, R.; Pérez, D.; Sánchez Carrasco, M. A.; Amado, P. J.; Seifert, W.; Quirrenbach, A.; Caballero, J. A.; Ribas, I.; Reiners, A.; Dreizler, S.

    2014-07-01

    CARMENES is a high resolution spectrograph to detect planets through the variation of radial velocity, destined for the Calar Alto Observatory in Almeria, Spain. The optical bench has a working temperature of 140K with a 24 hours stability of ±0,1K; goal ±0,01K. It is enclosed with a radiation shield actively cooled with thermalized nitrogen gas that flows through strategically positioned heat exchangers to remove its radiative load. The cooling system has an external preparation unit (N2GPU), which provides the nitrogen gas through actively vaporizing liquid nitrogen with heating resistances and a three stage circuit flow, each one controlled by an independent PID. Since CARMENES is still in the construction phase, a dedicated test facility has been built in order to simulate the instrument and correctly establish the N2GPU parameters. Furthermore, the test facility allows a wide range of configurations set-ups, which enables a full characterization of the N2GPU and the cooling system. The N2GPU has been designed to offer a wide temperature range of thermally stabilized nitrogen gas flow, which apart from CARMENES could also be used to provide ultra-high thermal stability in other cryogenic instruments. The present paper shows the testing of the cooling performance, the hardware used and the very promising results obtained.

  6. Direct detection of exoplanet host star companion gamma Cep B and revised masses for both stars and the sub-stellar object

    E-print Network

    Neuhäuser, R; Fukagawa, M; Torres, G; Schmidt, T; Neuhaeuser, Ralph; Mugrauer, Markus; Fukagawa, Misato; Torres, Guillermo; Schmidt, Tobias

    2006-01-01

    The star gamma Cep is known as a single-lined spectroscopic triple system at a distance of 13.8 pc, composed of a K1 III-IV primary star with V = 3.2 mag, a stellar-mass companion in a 66--67 year orbit (Torres 2006), and a substellar companion with M_p sin i = 1.7 M_Jup that is most likely a planet (Hatzes et al. 2003). We aim to obtain a first direct detection of the stellar companion, to determine its current orbital position (for comparison with the spectroscopic and astrometric data), its infrared magnitude and, hence, mass. We use the Adaptive Optics camera CIAO at the Japanese 8m telescope Subaru on Mauna Kea, Hawaii, with the semi-transparent coronograph to block most of the light from the bright primary gamma Cep A, and to detect at the same time the faint companion B. In addition, we also used the IR camera Omega-Cass at the Calar Alto 3.5m telescope, Spain, to image gamma Cep A and B by adding up many very short integrations (without AO). gamma Cep B is clearly detected on our CIAO and Omega-Cass i...

  7. HD 51106 and HD 50747: an ellipsoidal binary and a triple system observed with CoRoT

    NASA Astrophysics Data System (ADS)

    Dolez, N.; Vauclair, S.; Michel, E.; Hui-Bon-Hoa, A.; Vauclair, G.; Le Contel, D.; Mathias, P.; Poretti, E.; Amado, P. J.; Rainer, M.; Samadi, R.; Baglin, A.; Catala, C.; Auvergne, M.; Uytterhoeven, K.; Valtier, J.-C.

    2009-10-01

    Context: We present an analysis of the observations of HD 51106 and HD 50747 by the satellite CoRoT, obtained during its initial run, and of the spectroscopic preparatory observations. Aims: We complete an analysis of the light curve, extract the main frequencies observed, and discuss some preliminary interpretations about the stars. Methods: We used standard Fourier transform and pre-whitening methods to extract information about the periodicities of the stars. Results: HD 51106 is an ellipsoidal binary, the light curve of which can be completely explained by the tidal deformation of the star and smaller secondary effects. HD 50747 is a triple system containing a variable star, which exhibits many modes of oscillation with periods in the range of a few hours. On the basis of this period range and the analysis of the physical parameters of the star, we conclude that HD 50747 is a ?-Doradus star. Based on observations obtained by CoRoT, a space project operated by the French Space Agency (CNES) with the participation of the Science Program of ESA, ESTEC/RSSD, Austria, Belgium, Brazil, Germany, and Spain. Also based on observations made with ESO telescopes at the La Silla Observatory under the ESO large program LP178.D-0361, at the Observatoire de Haute Provence, INSU/CNRS, France, and on observations collected at the Centro Astronómico Hispano Alemán (CAHA) at Calar Alto, operated jointly by the Max-Planck Institut für Astronomie and the Instituto de Astrofísica de Andalucía.

  8. Last millennium environmental changes and climate inferences in the Southeastern Atlantic forest, Brazil.

    PubMed

    Pessenda, Luiz C R; Saia, Soraya E M G; Gouveia, Susy E M; Ledru, Marie-Pierre; Sifeddine, Abdelfettah; Amaral, Paula G C; Bendassolli, José A

    2010-09-01

    This study presents paleoenvironmental data based on pollen, elemental and isotopic compositions of organic matter (TOC, N, ?(13)C and ?(15)N) and (14)C dating of 170 cm lake sediment record. Samplings have been made in Lagoa Grande at Parque Estadual Turístico do Alto Ribeira - PETAR, Southern São Paulo State, Southeastern Brazil. The variations in relative frequencies (in percentage) of arboreal pollen along the core range between 40 and 80%. The ?(13)C values ranged from -23% to -30% and C/N of ~10 to 15, indicating the contribution of terrestrial C(3) plants and algae in the sediment organic matter. The ?(15)N results presented values from 3 to 4.5%, also suggesting a mixture of algae and terrestrial C(3) plants. The (14)C dating indicates modern age for the shallow horizons to ~1030 BP at the base of the core. A probable wetter climate in the period of ~370 BP to ~340 BP was inferred from the data set, which corresponds to a part of the period covered by the Little Ice Age (LIA). PMID:21562700

  9. Not every cell is sacred: a reply to Charo.

    PubMed

    DiSilvestro, Russell

    2006-06-01

    Massimo Reichlin, in an earlier article in this journal, defended a version of the 'argument from potential' (AFP), which concludes that the human embryo should be protected from the moment of conception. But R. Alto Charo, in her essay entitled 'Every Cell is Sacred: Logical Consequences of the Argument from Potential in the Age of Cloning', claims that versions of the AFP like Reichlin's are vulnerable to a rather embarrassing problem: with the advent of human cloning, such versions of the AFP entail that every somatic cell in the human body ought to be protected. Since this entailment is clearly absurd, Charo argues, these versions of AFP should be rejected. I argue that the reasons Charo cites for believing in this entailment are inconclusive. For example, the four reasons she gives for doubting any differences between the nature of skin cells and zygotes are ultimately unconvincing. Against Charo, I maintain that there is a relevant distinction between the sort of potential possessed by the somatic cell and the sort of potential possessed by the early human embryo. Since only the latter sort of potential falls within the scope of the AFP, the alleged absurd entailment Charo invites us to consider is no entailment at all. Hence the AFP cannot be rejected on the grounds Charo advances. Even in an age of cloning, the claim that some cells are 'sacred' because of their potential does not entail the claim that every cell is sacred. PMID:17042111

  10. Survey of emission-line galaxies: Universidad Complutense de Madrid list

    NASA Technical Reports Server (NTRS)

    Zamorano, J.; Rego, Gallego, J.; Gallego, J. G.; Vitores, A. G.RA, R.; Gonzalez-Riestra, R..; Rodriguez-Caderot, G.

    1994-01-01

    A low-dispersion objective-prism survey for low-redshift emission-line galaxies (ELGs) is being carried out by the University Complutense de Madrid with the Schmidt telescope at the German-Spanish Observatory of Calar Alto (Almeria, Spain). A 4 deg full aperture prism, which provides a dispersion of 1950 A/mm, and IIIaF emulsion combination has been used to search for ELGs selected by the presence of H-alpha emission in their spectra. Our survey has proved to be able to recover objects already found by similar surveys with different techniques and, what is more important, to discover new objects not previously cataloged. A compilation of descriptions and positions, along with finding charts when necessary, is presented for 160 extragalactic emission-line objects. This is the first list, which contains objects located in a region of the sky covering 270 sq deg in 10 fields near alpha = 0(sup h) and delta = 20 deg.

  11. Spectroscopy of Pre-CV Candidates in the Open Cluster M 67

    NASA Astrophysics Data System (ADS)

    Balaguer-Núñez, L.; Galadí-Enríquez, D.; Jordi, C.; Sánchez, S.

    The systematic study of selected open clusters by our team has lead to the production of the best set of Strömgren photometry ever obtained of the old open cluster M 67. Its analysis has shown a previously unknown clump of more than 50 stars in the HR diagram, located below the cluster MS. The spatial distribution of these stars indicates that most of them could be cluster members. Two alternative hypothesis would explain their photometry: (1) if members, they would be binary systems composed by a white dwarf and a red dwarf, i.e. pre-cataclysmic variable systems; (2) if non-members, they would constitute a stream of G-type stars placed behind the cluster. Medium dispersion spectra taken by our team using the PMAS/PPAK at 3.5 m telescope in Calar Alto1 will show the composite or single nature of the objects, and will allow to deblend the spectral contributions from the white and the red dwarfs, if the pre-CV hypothesis would turn out to be true. Also good spectrophotometric calibration will allow to determine precise spectral types, luminosities, surface temperatures and gravities, thus providing a preliminary astrophysical characterization of these systems. The same spectrophotometric calibration will yield separate and accurate synthetic photometry for both components, if present, in different broad and intermediate band systems.

  12. Lesion-specific laser catheters for angioplasty

    NASA Astrophysics Data System (ADS)

    Murphy-Chutorian, Douglas

    1991-07-01

    Since no one laser catheter can treat all types of disease, a new family of 'lesion-specific' devices was evaluated with a holmium laser source. Fifty patients (avg. 69 yrs) with lifestyle-limiting peripheral vascular disease and 29 patients (avg. 58 yrs) with symptomatic coronary disease were studied. Average lesion length was 5.3 cm in legs and 1.5 cm in hearts. A 1.5, 2.0, or 2.8 mm, tapered-tip or non-tapered, multifiber catheter (Eclipse, Palo Alto, CA) was advanced over the wire while emitting 300-1200 mj/pulse at 5 Hz. Mean percent stenosis decreased from 89% to 45% after lasing with a mean of 411 pulses in legs and from 86% to 46% with a mean of 158 pulses in hearts. Complications were infrequent. Laser technical success was 80% and overall procedural success was 97%. Conclusion: 1) Specialized laser catheters delivering holmium laser energy are capable of reducing the severity of peripheral and coronary stenoses including balloon angioplasty failures and bypass graft failures; 2) Follow-up studies are in progress to assess long term efficacy.

  13. The Early-type Galaxy Population in Abell 2390

    NASA Astrophysics Data System (ADS)

    Fritz, A.; Ziegler, B. L.

    We present high-quality spectroscopic data of 51 elliptical and lenticular galaxies in the rich cluster A2390 at z=0.23 obtained with MOSCA from the 3.5 m telescope at the Calar Alto Observatory in 7 nights during 2 runs. Our investigation is spanning a wider range in luminosity (M*B+1) than previous spectroscopic studies, which were limited to a small number of the more luminous galaxies. This is only the second cluster at intermediate redshift where such a large sample has been investigated (the other is A2218 at z=0.18, see Ziegler et al. MNRAS 2001, in press, astro-ph/0103475). Analysis of absorption line strengths lets us explore the evolution of galaxies in age and metallicity. Velocity dispersions (?) are determined to study the slope, scatter and zeropoint offset of the Faber-Jackson and Mg-? relations. In combination with morphological and structural parameters of a subsample of galaxies observed with HST, we also investigate the evolution of the Fundamental Plane. The overall sample is large enough to explore statistically significant sub-populations like S0 or Balmer-line enhanced galaxies and look for variations in early-type galaxy evolution as a function of distance from the cluster center. In addition to studying the evolution with respect to local clusters, we also investigate the variations in slope, scatter and zeropoint of the above relations between the equally rich clusters A2218 and A2390 at z=0.2.

  14. The Evolutionary Status of Early-type Galaxies in Abell 2390

    NASA Astrophysics Data System (ADS)

    Fritz, A.; Ziegler, B. L.; Bower, R. G.; Smail, I.; Davies, R. L.

    We explore the evolution of the early-type galaxy population in the rich cluster Abell 2390 at z=0.23. For this purpose, we have obtained spectroscopic data of 51 elliptical and lenticular galaxies with MOSCA at the 3.5 m telescope on Calar Alto Observatory. As our investigation spans both a broad range in luminosity (-22.3<=MB<=-:19.3) and a wide field of view (10'×10'), the environmental dependence of different formation scenarios can be analysed in detail as a function of radius from the cluster center. In this paper, we present first results on the Faber-Jackson relation and, for a subsample of 14 galaxies with morphological and structural parameters from HST, we also investigate the evolution of the Kormendy relation and the Fundamental Plane. We find a mild luminosity evolution of the early-type galaxies in Abell 2390: our objects are on average brighter by mB~0.4 mag.

  15. Evolutionary status of early-type galaxies in distant poor clusters

    NASA Astrophysics Data System (ADS)

    Fritz, Alexander; Ziegler, Bodo L.

    2004-07-01

    We introduce our project that investigates the kinematic properties of early-type galaxies in 6 distant poor clusters at z?0.25. This study represents a continuation of our efforts to understand galaxy evolution in low-density environments. Higher-resolution MOSCA spectra have been obtained at the Calar Alto 3.5-m telescope with which we can measure absorption line strengths and velocity dispersions. In conjunction with our HST/F702W images of all the clusters, we are able to construct the Fundamental Plane of ellipticals and S0 galaxies in poor clusters at a look-back time of ?3 Gyr. For galaxies outside the HST field, we concentrate our analysis on the Mg-? and Faber-Jackson relations. With the line strength diagrams age/metallicity distributions can be derived in densities between the field and rich cluster environments. Comparing with our rich clusters at the same cosmic epochs, the dependence of galaxy formation models on the local environment can be tested more quantitatively.

  16. K-band Evolution of Elliptical Galaxies in the Cluster Abell 2390 at z=0.23

    NASA Astrophysics Data System (ADS)

    Alizadeh, M.; Fritz, A.; Da Rocha, C.; Ziegler, B. L.

    2007-05-01

    We investigate the evolution of early-type galaxies (ellipticals and lenticulars) in the cluster of galaxies Abell 2390 at a redshift of 0.23. Here, we concentrate on the luminosity evolution in the near-infrared K-band. To this purpose, we have observed a 6'x6' field centred on A2390 with the NIR-camera OmegaPrime at the CAHA-3.5m-telescope on Calar Alto, Spain. The total integration time in the Ks-filter was 50 minutes. Calibration was performed with both UKIRT faint standard stars and stars in the A2390 field also observed by 2MASS. We combine the derived magnitudes with spectroscopic and morpho- logical data published in Fritz et al. 2005. In particular, we use the ground-based velocity dispersion measurements and the structural parameters of the galaxies as determined on optical HST/WFPC2 images. The whole sample comprises 28 early-type galaxies that are cluster members. We construct the Faber-Jackson and Fundamental Plane relations in the NIR. By comparing our distant galaxies to the local sample of Pahre et al. 1999, we find mild luminosity evolution for both relations like in the case of our optical study.

  17. The Gaia spectrophotometric standard stars survey -II. Instrumental effects of six ground-based observing campaigns

    E-print Network

    Altavilla, G; Pancino, E; Galleti, S; Ragaini, S; Bellazzini, M; Cocozza, G; Bragaglia, A; Carrasco, J M; Castro, A; Di Fabrizio, L; Federici, L; Figueras, F; Gebran, M; Jordi, C; Masana, E; Schuster, W; Valentini, G; Voss, H

    2015-01-01

    The Gaia SpectroPhotometric Standard Stars (SPSS) survey started in 2006, it was awarded almost 450 observing nights, and accumulated almost 100,000 raw data frames, with both photometric and spectroscopic observations. Such large observational effort requires careful, homogeneous, and automated data reduction and quality control procedures. In this paper, we quantitatively evaluate instrumental effects that might have a significant (i.e.,$\\geq$1%) impact on the Gaia SPSS flux calibration. The measurements involve six different instruments, monitored over the eight years of observations dedicated to the Gaia flux standards campaigns: DOLORES@TNG in La Palma, EFOSC2@NTT and ROSS@REM in La Silla, CAFOS@2.2m in Calar Alto, BFOSC@Cassini in Loiano, and LaRuca@1.5m in San Pedro Martir. We examine and quantitatively evaluate the following effects: CCD linearity and shutter times, calibration frames stability, lamp flexures, second order contamination, light polarization, and fringing. We present methods to correct ...

  18. B 517 - Another very late WNL star in M 33.

    NASA Astrophysics Data System (ADS)

    Crowther, P. A.; Szeifert, T.; Stahl, O.; Zickgraf, F.-J.

    1997-02-01

    We present intermediate dispersion optical spectroscopy of the M 33 star B517 (Humphreys & Sandage 1980ApJS...44..319H) obtained at the 3.5m Calar Alto and 4.2m William Herschel Telescopes. Our data reveal a spectral type of WN11h, closely resembling the Galactic LBV candidate He 3-519 (Smith et al. 1994A&A...281..833S). We find that B517 is the WNL star observed by Esteban et al. (1994AJ....107.1041E), named MC70 therein, and present a spectral analysis using the Hillier (1990A&A...231..116H) iterative scheme. We find that its stellar parameters (T_*_=27kK, log L/Lsun_=5.74, log ?(M)/Msun_/yr=-4.3, vinfinity_=275km/s) are similar to LMC WN11 stars (Crowther & Smith 1996, submitted), with a higher helium content (H/He~0.8 by number), suggesting a post-LBV evolutionary status.

  19. Measuring the Absolute Height and Profile of the Mesospheric Sodium Layer using a Continuous Wave Laser

    E-print Network

    D. J. Butler; R. I. Davies; R. M. Redfern; N. Ageorges; H. Fews

    2003-03-13

    We have developed and tested a novel method, based on LIDAR, of measuring the height and profile of the mesospheric sodium layer using a continuous wave laser. It is more efficient than classical LIDAR as the laser is on for 50% of the time, and so can in principle be used during laser guide star adaptive optics observations. It also has significant advantages over direct imaging techniques because it does not require a second telescope, is almost independent of the atmospheric conditions, and avoids triangulation problems in determining the height. In the long term, regular monitoring using this method would allow a valuable database of sodium layer profiles, heights, and return flux measurements to be built up which would enable observatory staff astronomers to schedule observations optimally. In this paper we describe the original experiment carried out using the ALFA laser guide star system at Calar Alto Observatory in Spain. We validate the method by comparing the LIDAR results with those obtained from simultaneous imaging from an auxiliary telescope. Models are presented of a similar system to be implemented in the Very Large Telescope Laser Guide Star Facility, which will enable the initial focus setting for the adaptive optics systems to be determined with an accuracy of less than 200 m on a timescale of 1 minute.

  20. A globally efficient means of distributing UTC time and frequency through GPS

    NASA Technical Reports Server (NTRS)

    Kusters, John A.; Giffard, Robin P.; Cutler, Leonard S.; Allan, David W.; Miranian, Mihran

    1995-01-01

    Time and frequency outputs comparable in quality to the best laboratories have been demonstrated on an integrated system suitable for field application on a global basis. The system measures the time difference between 1 pulse-per-second (pps) signals derived from local primary frequency standards and from a multi-channel GPS C/A receiver. The measured data is processed through optimal SA Filter algorithms that enhance both the stability and accuracy of GPS timing signals. Experiments were run simultaneously at four different sites. Even with large distances between sites, the overall results show a high degree of cross-correlation of the SA noise. With sufficiently long simultaneous measurement sequences, the data shows that determination of the difference in local frequency from an accepted remote standard to better than 1 x 10(exp -14) is possible. This method yields frequency accuracy, stability, and timing stability comparable to that obtained with more conventional common-view experiments. In addition, this approach provides UTC(USNO MC) in real time to an accuracy better than 20 ns without the problems normally associated with conventional common-view techniques. An experimental tracking loop was also set up to demonstrate the use of enhanced GPS for dissemination of UTC(USNO MC) over a wide geographic area. Properly disciplining a cesium standard with a multi-channel GPS receiver, with additional input from USNO, has been found to permit maintaining a timing precision of better than 10 ns between Palo Alto, CA and Washington, DC.