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Sample records for access study caliente

  1. Agua Caliente Solar Feasibility and Pre-Development Study Final Report

    Energy Technology Data Exchange (ETDEWEB)

    Carolyn T. Stewart, Managing Partner; Red Mountain Energy Partners

    2011-04-26

    Evaluation of facility- and commercial-scale solar energy projects on the Agua Caliente Band of Cahuilla Indians Reservation in Palm Springs, CA. The Agua Caliente Band of Cahuilla Indians (ACBCI) conducted a feasibility and pre-development study of potential solar projects on its lands in southern California. As described below, this study as a logical and necessary next step for ACBCI. Support for solar project development in California, provided through the statewide California Solar Initiative (CSI), its Renewable Portfolio Standard and Feed-in Tariff Program, and recently announced Reverse Auction Mechanism, provide unprecedented support and incentives that can be utilized by customers of California's investor-owned utilities. Department of Energy (DOE) Tribal Energy Program funding allowed ACBCI to complete its next logical step to implement its Strategic Energy Plan, consistent with its energy and sustainability goals.

  2. Provenance and Detrital-Zircon Studies of the Mint Canyon Formation and its Correlation to the Caliente Formation, Southern California

    OpenAIRE

    hoyt, johanna

    2012-01-01

    The Middle Miocene Mint Canyon and Caliente formations represent sedimentation after triple-junction extension in southern California. Sandstone and conglomerate petrology, combined with detrital-zircon analysis, determines provenance of the Mint Canyon and Caliente formations. These data indicate that most detritus is locally derived, rather than being derived from the Chocolate Mountains across the San Andreas fault. The Mint Canyon and Caliente formations received Proterozoic anorthosite-s...

  3. DOE/NV/26383-LTR2008-01 Letter Report Yucca Mountain Environmental Monitoring Systems Initiative - Air Quality Scoping Study for Caliente, Lincoln County, Nevada

    Energy Technology Data Exchange (ETDEWEB)

    J. Engelbrecht; I. Kavouras; D. Campbell; S. Campbell; S. Kohl; D. Shafer

    2009-04-02

    The Desert Research Institute (DRI) is performing a scoping study as part of the U.S. Department of Energy's Yucca Mountain Environmental Monitoring Systems Initiative (EMSI). The main objective is to obtain baseline air quality information for Yucca Mountain and an area surrounding the Nevada Test Site (NTS). Air quality and meteorological monitoring and sampling equipment housed in a mobile trailer (shelter) is collecting data at eight sites outside the NTS, including Ash Meadows National Wildlife Refuge (NWR), Beatty, Sarcobatus Flats, Rachel, Caliente, Pahranagat NWR, Crater Flat, and Tonopah Airport, and at four sites on the NTS (Engelbrecht et al., 2007a-d). The trailer is stationed at any one site for approximately eight weeks at a time. This letter report provides a summary of air quality and meteorological data, on completion of the site's sampling program.

  4. Agua Caliente and Their Music.

    Science.gov (United States)

    Ryterband, Roman

    1979-01-01

    Discusses the traditional music of the Agua Caliente band of California's Desert Cahuilla Indian tribe, including accompanying instruments, types of songs, thematic material, and performance routines. Exploring the structure of the music, the article describes meter, tempo, harmony and tonal gravitations, and use of words. (DS)

  5. Conformabilidad en caliente de aceros Twip

    OpenAIRE

    Pineda huitrón, Rosa M.

    2009-01-01

    En el presente proyecto de investigación, se trabajó con un acero de alto contenido en manganeso austenitico, TWIP, este acero se clasifica dentro de los aceros denominados: Aceros Avanzados de Alta Resistencia mecánica (AHSS). En este estudio se pretende estudiar las condiciones de trabajo en caliente óptimas para este acero, de modo que se pueda potenciar al máximo su resistencia sin penalizar su ductilidad. Para ello se efectuarán ensayos de compresión en caliente bajo difer...

  6. The source, discharge, and chemical characteristics of water from Agua Caliente Spring, Palm Springs, California

    Science.gov (United States)

    : Martin, Peter; Contributors: Brandt, Justin; Catchings, Rufus D.; Christensen, Allen H.; Flint, Alan L.; Gandhok, Gini; Goldman, Mark R.; Halford, Keith J.; Langenheim, V.E.; Martin, Peter; Rymer, Michael J.; Schroeder, Roy A.; Smith, Gregory A.; Sneed, Michelle

    2011-01-01

    Agua Caliente Spring, in downtown Palm Springs, California, has been used for recreation and medicinal therapy for hundreds of years and currently (2008) is the source of hot water for the Spa Resort owned by the Agua Caliente Band of the Cahuilla Indians. The Agua Caliente Spring is located about 1,500 feet east of the eastern front of the San Jacinto Mountains on the southeast-sloping alluvial plain of the Coachella Valley. The objectives of this study were to (1) define the geologic structure associated with the Agua Caliente Spring; (2) define the source(s), and possibly the age(s), of water discharged by the spring; (3) ascertain the seasonal and longer-term variability of the natural discharge, water temperature, and chemical characteristics of the spring water; (4) evaluate whether water-level declines in the regional aquifer will influence the temperature of the spring discharge; and, (5) estimate the quantity of spring water that leaks out of the water-collector tank at the spring orifice.

  7. Tierra Caliente, Michoacán

    Directory of Open Access Journals (Sweden)

    C. I. Villa

    2008-01-01

    Full Text Available Los sistemas de producción ganaderos de la región de Tierra Caliente están vinculados al manejo agrosilvopastoril, aprovechando una amplia gama de recursos forrajeros naturales, siendo las familias quienes conducen la administración y aprovechamiento de dichos recursos. Se buscó definir las características, recursos forrajeros aprovechables e insumos alimenticios, estimando su calidad nutricional, con el fin de encontrar estrategias de alimentación de ganado que reduzcan al mínimo el uso de insumos externos al interior de las unidades productivas. Se trabajó en comunidades del municipio de Tuzantla, en la región de Tierra Caliente del estado de Michoacán. El método incluye la recolección de información por medio de encuestas aplicadas a productores campesinos, durante el ciclo productivo 2007. Se analizaron de 200 a 300 g de 41 muestras de alimentos con el método de Wendee, para analizar su composición química. Se encontró que para la región de Tierra Caliente existe un sistema de producción bovina de mediana escala, semi-estabulado y trashumante que, en promedio, tiene 250 a 260 ha y 86 cabezas de ganado destinado a la producción de carne y pie de cría, y que producen 9.2 l/vaca/día; con esta leche se elabora queso a razón de 1kg de queso por cada 10 litros de leche. Se identificó, también, el uso de seis ingredientes fundamentales que componen dos dietas básicas, cuya composición química detectada fue de 10.2- 13.9% (PC, 7.9-11.8% (FC, 62.8-67.9% (ELN, 1.4-5% (EE y 1.9-8.8% (cenizas. Por tanto, se concluye que los ganaderos cubren los requerimientos nutricionales con base en el alto uso de concentrados, dejando los forrajes para satisfacer las necesidades de consumo de su ganado. Por esto, se requiere establecer un sistema de balanceo de raciones que permita optimizar los recursos

  8. NASA studies access to space

    Science.gov (United States)

    Bekey, Ivan; Powell, Richard; Austin, Robery

    1994-01-01

    A comprehensive internal NASA study known as 'Access to Space' has sought to identify and assess major alternatives for the long-range direction the space transportation program should take. The scope of the study covered all U.S. civilian, commercial, and national security needs for space transportation for the next several decades. Three alternative approaches were identified: using current vehicles; developing new conventional technology vehicles, and developing new advanced technology vehicles. Large annual operations cost savings could be obtained only with new vehicles, and then only with considerable up-front investments. Seven other major factors were assessed. The third option is found to be the most attractive.

  9. Agua Caliente Wind/Solar Project at Whitewater Ranch

    Energy Technology Data Exchange (ETDEWEB)

    Hooks, Todd [Agua Caliente Band of Cahuilla Indians, Palm Springs, CA (United States); Stewart, Royce [Red Mountain Energy Partners, Sante Fe, NM (United States)

    2014-12-16

    Agua Caliente Band of Cahuilla Indians (ACBCI) was awarded a grant by the Department of Energy (DOE) to study the feasibility of a wind and/or solar renewable energy project at the Whitewater Ranch (WWR) property of ACBCI. Red Mountain Energy Partners (RMEP) was engaged to conduct the study. The ACBCI tribal lands in the Coachella Valley have very rich renewable energy resources. The tribe has undertaken several studies to more fully understand the options available to them if they were to move forward with one or more renewable energy projects. With respect to the resources, the WWR property clearly has excellent wind and solar resources. The DOE National Renewable Energy Laboratory (NREL) has continued to upgrade and refine their library of resource maps. The newer, more precise maps quantify the resources as among the best in the world. The wind and solar technology available for deployment is also being improved. Both are reducing their costs to the point of being at or below the costs of fossil fuels. Technologies for energy storage and microgrids are also improving quickly and present additional ways to increase the wind and/or solar energy retained for later use with the network management flexibility to provide power to the appropriate locations when needed. As a result, renewable resources continue to gain more market share. The transitioning to renewables as the major resources for power will take some time as the conversion is complex and can have negative impacts if not managed well. While the economics for wind and solar systems continue to improve, the robustness of the WWR site was validated by the repeated queries of developers to place wind and/or solar there. The robust resources and improving technologies portends toward WWR land as a renewable energy site. The business case, however, is not so clear, especially when the potential investment portfolio for ACBCI has several very beneficial and profitable alternatives.

  10. Ecuaciones constitutivas de la fluencia en caliente de aceros microaleados

    Directory of Open Access Journals (Sweden)

    Cabrera, J. M.

    1998-05-01

    Full Text Available Over centuries, the hot forming has been employed to provide shape to metáis. Nowadays, the deformation at high temperatures gives also the required final mechanical properties. From this point of view, the obtention of a constitutive equation describing the hot flow behaviour of microalloyed steels in particular is a very important task. The main difficulty in modelling the high temperature flow arises from the simultaneity of two opposite phenomena, namely, work hardening and dynamic softening due to recovery and recrystallization. In this is work a review of constitutive equations (including the effect of the chemical composition describing the flow behaviour of microalloyed steels deformed under high temperature conditions.

    Durante siglos el conformado en caliente se ha utilizado para proporcionar a los metales la forma deseada. Hoy en día la deformación en caliente no sólo genera la geometría deseada sino las características mecánicas requeridas. Así, la obtención de una ecuación constitutiva para la fluencia en caliente de un acero en particular, es una tarea ineludible para efectuar simulaciones por ordenador de procesos industriales. La complicación de la modelización de la fluencia a alta temperatura proviene de la simultaneidad de dos fenómenos contrapuestos durante la deformación, a saber, endurecimiento por deformación y ablandamiento por recuperación de la estructura. Este último a su vez puede constar de restauración y recristalización dinámicas. En este trabajo se revisan y plantean las ecuaciones constitutivas que describen las curvas de fluencia bajo condiciones de deformación en caliente, y se presenta una aplicación de las mismas a aceros microaleados.

  11. Calient Networks chosen as core platform for OptIPuter

    CERN Multimedia

    2003-01-01

    Calient Networks, a provider of intelligent all-optical switching systems and software, will team with the California Institute for Telecommunications and Information Technology (Cal-(IT)2) and the University of Illinois at Chicago (UIC) on development of the "OptIPuter,". This is a powerful distributed cyber-infrastructure project designed to support data-intensive scientific research and collaboration (1/2 page).

  12. 76 FR 63614 - Agua Caliente Solar, LLC; Supplemental Notice That Initial Market-Based Rate Filing Includes...

    Science.gov (United States)

    2011-10-13

    ...-000] Agua Caliente Solar, LLC; Supplemental Notice That Initial Market-Based Rate Filing Includes... proceeding of Agua Caliente Solar, LLC's application for market-based rate authority, with an...

  13. Urban Studies: A Study of Bibliographic Access and Control.

    Science.gov (United States)

    Anderson, Barbara E.

    This paper analyzes: (1) the bibliographic access to publications in urban studies via printed secondary sources; (2) development and scope of classification systems and of vocabulary control for urban studies; and (3) currently accessible automated collections of bibliographic citations. Urban studies is defined as "an agglomeration of…

  14. Estudio de la influencia de la microestructura sobre la deformabilidad en caliente de un acero inoxidable dúplex

    Directory of Open Access Journals (Sweden)

    Iza-Mendia, A.

    1998-05-01

    Full Text Available The complexity of the hot deformation behaviour of the ferrite and austenite in a duplex structure is increased as compared with that of single phase ferritic or austenitic steels. Important factors are: the spatial phase distribution with respect to the direction of the imposed deformation, the codeformation of both phases having considerably different mechanical properties, and the nature of the interface between austenite and ferrite. In the present study, the influence of these factors on the crack formation during the hot deformation is analyzed.

    El comportamiento frente al conformado en caliente de la ferrita y de la austenita, en una estructura dúplex, es muy diferente al que presentan ambas fases por separado en los aceros monofásicos austeníticos o ferríticos. A ello contribuyen, entre otros, la distribución espacial de las fases con respecto a la deformación impuesta, la codeformación de dos fases, con propiedades mecánicas muy diferentes, y la naturaleza de la intercara. En el presente trabajo se analiza la influencia de estos factores en la formación de daño bajo condiciones de deformación en caliente.

  15. La olla judía del šabbat: estudio lexicológico y lexicográfico de "adafina", "ḥamín", "caliente(s)" y otras denominaciones

    OpenAIRE

    2015-01-01

    En este artículo se aborda un detallado estudio lexicológico y lexicográfico de las distintas denominaciones de la olla judía del sábado en castellano, adafina, ḥamín, caliente(s) y otras denominaciones menos conocidas. Este plato constituía un e

  16. Ductilidad en caliente y mecanismos de fractura de un acero de construcción

    Directory of Open Access Journals (Sweden)

    Calvo, J.

    2006-02-01

    Full Text Available The hot ductility of a structural steel produced from scrap recycling has been studied to determine the origin of the transverse cracks in the corners that appeared in some billets. Samples extracted both from a billet with transverse cracks and from a billet with no external damage were tested. To evaluate the influence of residual elements and inclusions, the steel was compared to another one impurity free. Reduction in area of the samples tensile tested to the fracture was taken as a measure of the hot ductility The tests were carried out at temperatures ranging from 1000ºC to 650ºC and at a strain rate of 1·10- 3 s-1. The fracture surfaces of the tested samples were observed by scanning electron microscopy in order to determine the embrittling mechanisms that could be acting. The steel with residuals and impurities exhibited lower ductility values for a wider temperature range than the clean steel. The embrittling mechanisms also changed as compared to the impurity free steel.

    Se evaluó la ductilidad en caliente de un acero de construcción procedente del reciclaje de chatarra con el fin de determinar el origen de las grietas transversales que aparecen en las esquinas de algunas palanquillas. Para ello, se extrajeron probetas de dos palanquillas de una misma calidad de acero. Una de las palanquillas había presentado agrietamiento transversal al ser colada y, la otra, no. Para conocer la influencia de los elementos residuales e inclusiones en la ductilidad en caliente, otro acero, con la misma composición pero sin impurezas, se fabricó en laboratorio y fue sometido al mismo análisis que los aceros comerciales. La ductilidad en caliente se midió como la reducción del área de las probetas ensayadas a tracción hasta la rotura. Las condiciones a las que se realizaron los ensayos fueron temperaturas de 1.000 a 650 ºC y a una velocidad de deformación de 1·10-3 s-1. Las superficies de fractura de las probetas ensayadas se

  17. 76 FR 56790 - Notice of Intent To Prepare an Amendment to the Caliente Resource Management Plan and Associated...

    Science.gov (United States)

    2011-09-14

    ... Caliente RMP identifies parcels one and two for land tenure adjustment through land exchanges to consolidate natural resource values. Under the Caliente RMP, public lands identified for land tenure... tenure adjustment. All public lands in the Coast Management Area were identified as possibly...

  18. Does momentary accessibility influence metacomprehension judgments? The influence of study-judgment lags on accessibility effects.

    Science.gov (United States)

    Baker, Julie M C; Dunlosky, John

    2006-02-01

    In two experiments, we investigated momentary accessibility as a basis for metacomprehension judgments. Momentary accessibility has been cited as a major contributor to these judgments, yet the only previous investigation on the topic used judgments that were delayed a day after study, which have not been used in any other studies in the field and may be necessary for demonstrating accessibility-based effects. As expected, Experiment 1 demonstrated that the time between study and judgments moderates accessibility effects, with the relationship between judgments and access measures being substantially greater for delayed than for immediate judgments. Experiment 2 ruled out a plausible artifactual interpretation for accessibility effects on delayed judgments. In the discussion, we explore why study-judgment lags moderate accessibility effects.

  19. 25 CFR 115.106 - Assets of members of the Agua Caliente Band of Mission Indians.

    Science.gov (United States)

    2010-04-01

    ... 25 Indians 1 2010-04-01 2010-04-01 false Assets of members of the Agua Caliente Band of Mission Indians. 115.106 Section 115.106 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR FINANCIAL ACTIVITIES TRUST FUNDS FOR TRIBES AND INDIVIDUAL INDIANS IIM Accounts § 115.106 Assets of members of the...

  20. 75 FR 81190 - Television Broadcasting Services; Vernal and Santaquin, UT, and Ely and Caliente, NV

    Science.gov (United States)

    2010-12-27

    ... COMMISSION 47 CFR Part 73 Television Broadcasting Services; Vernal and Santaquin, UT, and Ely and Caliente.... The Commission was required by the DTV Delay Act to ] terminate all licenses for full-power television... Commission no longer has the authority to act on rulemaking proposals in the full-power analog...

  1. Investigating microbial diversity and UV radiation impact at the high-altitude Lake Aguas Calientes, Chile

    Science.gov (United States)

    Escudero, Lorena; Chong, Guillermo; Demergasso, Cecilia; Farías, María Eugenia; Cabrol, Nathalie A.; Grin, Edmond; Minkley, Edwin, Jr.; Yu, Yeoungeob

    2007-09-01

    The High-Lakes Project is funded by the NAI and explores the highest perennial volcanic lakes on Earth in the Bolivian and Chilean Andes, including several lakes ~6,000 m elevation. These lakes represent an opportunity to study the evolution of microbial organisms in relatively shallow waters not providing substantial protection against UV radiation. Aguas Calientes (5,870 m) was investigated (November 2006) and samples of water and sediment collected at 1, 3, 5, and 10 cm depth. An Eldonet UV dosimeter positioned on the shore records UV radiation and temperature, and is logging data year round. A UV SolarLight sensor allowed acquisition of point measurements in all channels at the time of the sampling. UVA, UVB, and PAR peaks between 11:00 am and 1:00 pm reached 7.7 mW/cm2, 48.5 μW/cm2, and 511 W/m2, respectively. The chemical composition of the water sample was analyzed. DNA was extracted and DGGE analyses with bacterial and archaeal 16S fragments were performed to describe microbial diversity. Antibiotic resistances were established previously in similar environments in Argentine Andean wetlands. In order to determine these resistances in our samples, they were inoculated onto LB and R2A media and onto R2A medium containing either chloramphenicol, ampicillin or tetracycline. Bacterial was higher than archeal cell number determined by RT-PCR in all the samples, reaching maximum total values of 5x10 5 cell mL-1. DGGE results from these samples and Licancabur summit lake (5,916 m) samples were also compared. Eight antibiotic-resistant Gram negative strains have been isolated with distinct resistance patterns.

  2. Analizan partículas calientes del accidente nuclear de Palomares

    OpenAIRE

    2012-01-01

    Investigadores pertenecientes al Centro Nacional de Aceleradores, CNA, (Universidad de Sevilla-Junta de Andalucía-CSIC) en colaboración con la Organización Internacional de la Energía Atómica (IAEA), han llevado a cabo me didas de elementos transuránicos en partículas calientes procedentes de accidentes nucleares tales como el de Thule (Groenlandia) o Palomares (España).

  3. Accessing Digital Libraries: A Study of ARL Members' Digital Projects

    Science.gov (United States)

    Kahl, Chad M.; Williams, Sarah C.

    2006-01-01

    To ensure efficient access to and integrated searching capabilities for their institution's new digital library projects, the authors studied Web sites of the Association of Research Libraries' (ARL) 111 academic, English-language libraries. Data were gathered on 1117 digital projects, noting library Web site and project access, metadata, and…

  4. Modelización de la deformación en caliente de un cobre puro comercial

    Directory of Open Access Journals (Sweden)

    García, V. G.

    2001-04-01

    Full Text Available The objective of the study is to model the flow curve at high temperature of a commercialpurity copper which contains 297 ppm of phosphorus. For this purpose a theoretical model is applied to derive a constitutive equation that reliably predicts the behaviour at higher strain rates than experimentally tested. The test temperature range was from 873 K to 1223 K in increments of 50 K, using six true strain rates at every temperature, which span from 0.3 s-1 to 0.001 s-1 The hot flow tests were performed on a copper with a relatively large grain size (637 µm but of similar scale to pertinent industrial processes. This metal presents two antagonistic phenomena during the hot working: strain hardening and softening by dynamic restoration, which in turns can be divided into dynamic recovery and dynamic recrystallization. A quantification of the mentioned mechanisms is done through the use of physically based constitutive equations.

    El objetivo de este estudio es modelizar la curva de fluencia a alta temperatura de un cobre de pureza comercial conteniendo 297 ppm de fósforo. Todo ello, con objeto de obtener una ecuación constitutiva que fiablemente prediga el comportamiento a otras velocidades de deformación diferentes de las posibles experimentalmente. El intervalo de temperaturas en los que se efectuaron ensayos fue desde 873 K a 1.223 K en incrementos de 50 K, utilizando seis velocidades de deformación verdadera a cada temperatura, las cuales iban desde 0,3 s-1 hasta 0,001 s-1 Los ensayos de deformación en caliente fueron realizados en un cobre con un tamaño de grano relativamente grande (637 μm pero escalarmente similar al de procesos industriales relevantes. Durante la deformación en caliente, el metal presenta dos fenómenos antagonistas, a saber: endurecimiento por deformación y ablandamiento por recuperación dinámica, el cual, a su vez, puede desglosarse en restauración y

  5. Efecto del boro en la deformación en caliente de un acero al carbono

    OpenAIRE

    2005-01-01

    En el presente estudio se evalúa el comportamiento a fluencia de tres aceros al carbono con distinto contenido en boro. Las curvas de fluencia se han obtenido a partir de ensayos de compresión uniaxial en caliente, realizada sobre probetas cilíndricas en una máquina de ensayos INSTRON que disponía de un horno de calentamiento por radiación adaptado al sistema. Los ensayos se realizaron a velocidad de deformación constante de 0,1s-1, 0,01s-1 y 0,001s-1, y las temperaturas de ens...

  6. Estudio del comportamiento termo-mecánico de un acero microaleado de medio carbono durante un proceso de conformado en caliente usando una red neuronal artificial

    Directory of Open Access Journals (Sweden)

    Alcelay, Ignacio

    2016-06-01

    Full Text Available The thermo-mechanical behavior of medium carbon microalloyed steel has been analyzed by an Artificial Neural Network (ANN. The flow curves for training the ANN have been obtained from the hot compression tests, carried out over a temperature range varying from 900 to 1150 °C and at different true strain rates ranging from 10-4 to 10 s-1. It has been found that the ANN model developed in this study is capable to predict accurately and efficiently the flow behavior of the studied steel and there is a good agreement between the experimental results and the ANN results. To analyze the formability of the studied steel, processing maps have been constructed on the basis of the Dynamic Materials Model (DMM, using the ANN values of the flow stress. The study of maps reveals the different domains of the flow behavior of the studied steel and shows the great similarity between the experimental results and the theoretical results, so the use of the ANN can constitute an interesting alternative for design and study of hot forming processes.El comportamiento termo-mecánico de un acero microaleado de medio carbono ha sido analizado mediante una Red Neuronal Artificial (RNA. Las curvas de fluencia para el entrenamiento de la RNA han sido obtenidas mediante ensayos de compresión en caliente que se efectuaron a temperaturas que oscilaron entre 1150 °C y 900 °C a incrementos de 50 °C, y en un intervalo de velocidades de deformación que varió entre 10-4 y 10 s-1. Se ha podido comprobar que el modelo de RNA, desarrollado en el presente trabajo, es capaz de predecir con exactitud y eficiencia el comportamiento de fluencia en caliente del acero estudiado y existe un buen acuerdo entre los resultados experimentales y los resultados de la RNA. Para analizar la conformabilidad del acero microaleado se han construido mapas de procesado basados en el modelo dinámico de materiales (DMM usando los valores de la tensión de fluencia obtenidos mediante la RNA. El

  7. A Comparative Study on Temporal Mobile Access Pattern Mining Methods

    Directory of Open Access Journals (Sweden)

    Hanan Fahmy

    2012-03-01

    Full Text Available Mobile users behavior patterns is one of the most critical issues that need to be explored in mobile agent systems. Recently the algorithms of discovering frequent mobile user’s behavior patterns have been studied extensively. Existing mining methods have proposed frequent mobile user's behavior patterns statistically based on requested services and location information. Therefore, other studies considered that the mobile user's dynamic behavior patterns are usually associated with temporal access patterns. In this paper, temporal mobile access pattern methods are studied and compared in terms of complexity and accuracy. The advantages and disadvantages of these methods will be summarized as well

  8. Implementing Open Access Policy:First case studies

    Institute of Scientific and Technical Information of China (English)

    Chris; Armbruster

    2010-01-01

    When implementing open access,policy pioneers and flagship institutions alike have faced considerable challenges in meeting their own aims and achieving a recognized success.Legitimate authority,sufficient resources and the right timing are crucial,but the professionals charged with implementing policy still need several years to accomplish significant progress.This study defines a methodological standard for evaluating the first generation of open access policies.Evaluating implementation establishes evidence,enables reflection,and may foster the emergence of a second generation of open access policies.While the study is based on a small number of cases,these case studies cover most of the pioneer institutions,present the most significant issues and offer an international overview.Each case is reconstructed individually on the basis of public documents and background information,and supported by interviews with professionals responsible for open access implementation.This article presents the highlights from each case study.The results are utilized to indicate how a second generation of policies might define open access as a key component of digital research infrastructures that provide inputs and outputs for research,teaching and learning in real time.

  9. Eliminación de Bandas Calientes en Reformador de Gas Natural Elimination of Hot Bands in a Natural Gas Reformer

    Directory of Open Access Journals (Sweden)

    D.J. Correa

    2004-01-01

    Full Text Available El objetivo de este trabajo fue encontrar las causas de la formación de bandas calientes por deposición de coque en un reformador de gas natural, que provoca la salida de servicio de la unidad y mayores costos de producción. Se recurrió a la literatura para determinar las variables que tienen incidencia en esta problemática y se creó un trazador que cuantifica la formación de coque, denominado Índice de Obstrucción. Se analizó sistemáticamente el impacto de las distintas variables y se relacionaron con la evolución del Índice de Obstrucción, siempre tomando información de la propia planta industrial. Descartando todas las hipótesis, excepto la presencia de hidrocarburos livianos, se determinó que el problema de las bandas calientes no se origina en el propio horno de reforma, sino aguas arriba del proceso, en el desulfuradorThe purpose of this study was to find the causes of formation of hot bands due to coke deposition in a natural gas reformer which caused the unit to go out of service, resulting in higher production costs. A literature study was made to determine the variables which affected the incidence of this problem, and to produce an index which quantified the formation of coke, named Obstruction Index. The impact of different variables was systematically analyzed and these variables were related to the evolution of the Obstruction Index, always taking into account the information from the industrial plant studied. All hypotheses were discarded except that relating to the presence of light hydrocarbons. It was determined that the problem of the hot bands did not originate within the reforming unit, but rather upstream of the process in the desulfurization unit

  10. Boston solar retrofits: studies of solar access and economics

    Energy Technology Data Exchange (ETDEWEB)

    Shapiro, M.

    1980-11-01

    Studies of solar access and solar retrofit economics are described for residential applications in the City of Boston. The study of solar access was based upon a random sample of 94 buildings; the sample was stratified to ensure a broad geographic representation from the city's various sections. Using available data on the heights and orientations of the sampled structures and surrounding buildings, each building's hourly access to sunlight was computed separately for the roof and south facing walls. These data were then aggregated by broad structural classifications in order to provide general measures of solar access. The second study was a comparative analysis of the economics of several solar heating and hot water systems. An active hot water system, installed using pre-assembled, commercially purchased equipment, was selected as a reference technology. A variety of measures of economic performance were computed for this system, with and without existing tax credits and under various financing arrangements. Next, a number of alternative approaches for solar space and water heating were identified from interviews with individuals and groups involved in solar retrofit projects in the Boston area. The objective was to identify approaches that many of those interviewed believe to be low-cost means of applying solar energy in residential settings. The approaches selected include thermal window covers, wall collectors, bread box water heaters, and sun spaces. Preliminary estimates of the performance of several representative designs were developed and the economics of these designs evaluated.

  11. Compresas húmedo calientes como intervención para reducir el dolor musculoesquelético: Análisis de la evidencia Hot packs like intervention to reduce musculoskeletal pain: An analysis of evidence

    Directory of Open Access Journals (Sweden)

    Francisco Josué Pavez Ulloa

    2008-07-01

    Full Text Available Introducción: En los Estados Unidos el dolor en niños causa un promedio de 21 millones de días de escuela perdidos y en empleados trabajadores provoca una pérdida de 147 millones de días de trabajo. El dolor produce desordenes musculoesqueléticos y las modalidades terapéuticas se usan comúnmente en su tratamiento. Una de las modalidades más usadas clínicamente son las compresas húmedo calientes previas a tratamientos. No existen artículos que analicen cual es la evidencia disponible sobre la efectividad de las compresas húmedo calientes como intervención para aliviar el dolor. Objetivos: Determinar si existe evidencia científica que avale la efectividad de las compresas húmedo calientes como intervención efectiva en el alivio del dolor. Agrupar la mejor evidencia clínica disponible en relación a la analgesia producida por las compresas húmedo calientes. Evaluar la calidad de los estudios que investigaron los efectos de las compresas húmedo calientes sobre pacientes con dolor. Materiales y métodos: Se buscaron ensayos clínicos aleatorios las bases de datos MEDLINE, Cochrane Library Plus, CINAHL, DARE. A dichos estudios se les aplicó la escala de PEDro para evaluar la validez de los trabajos y posteriormente se clasificó la evidencia según la escala del Centro de Medicina Basada en Evidencias de Oxford. Resultados: Se incluyeron 4 ensayos clínicos aleatorios y una revisión sistemática que cumplieron con los criterios de inclusión y exclusión. Conclusión: Existe evidencia de nivel 1b y recomendación A que las compresas húmedo calientes producen efectos benéficos sobre el dolor de forma tal que potencian una intervención posterior. Aun falta investigación para formular conclusiones adecuadas.Introduction: The pain in children causes an average of 21 million days of school lost and in hardworking employees in the United States it provoke a loss of 147 million workdays. The pain produces musculoskeletal disorders

  12. ENVIRONMENTAL ASSESSMENT FOR THE PROPOSED WITHDRAWAL OF PUBLIC LANDS WITHIN AND SURROUNDING THE CALIENTE RAIL CORRIDOR, NEVADA

    Energy Technology Data Exchange (ETDEWEB)

    DOE

    2005-12-01

    The purpose for agency action is to preclude surface entry and the location of new mining claims, subject to valid existing rights, within and surrounding the Caliente rail corridor as described in the Yucca Mountain FEIS (DOE 2002). This protective measure is needed to enhance the safe, efficient, and uninterrupted evaluation of land areas for potential rail alignments within the Caliente rail corridor. The evaluation will assist the DOE in determining, through the Rail Alignment environmental impact statement (EIS) process, whether to construct a branch rail line, and to provide support to the BLM in deciding whether or not to reserve a ROW for the rail line under the Federal Land Policy and Management Act (FLPMA). The BLM participated as a cooperating agency in preparing this EA because it is the responsible land manager and BLM staff could contribute resource specific expertise.

  13. Personal Access Satellite System (PASS) study. Fiscal year 1989 results

    Science.gov (United States)

    Sue, Miles K. (Editor)

    1990-01-01

    The Jet Propulsion Laboratory is exploring the potential and feasibility of a personal access satellite system (PASS) that will offer the user greater freedom and mobility than existing or currently planned communications systems. Studies performed in prior years resulted in a strawman design and the identification of technologies that are critical to the successful implementation of PASS. The study efforts in FY-89 were directed towards alternative design options with the objective of either improving the system performance or alleviating the constraints on the user terminal. The various design options and system issues studied this year and the results of the study are presented.

  14. A Performance Study of Wireless Broadband Access (WiMAX

    Directory of Open Access Journals (Sweden)

    Maan A. S. Al-Adwany

    2011-12-01

    Full Text Available WiMAX (worldwide interoperability for microwave access is one of the wireless broadband access technologies which supplies broadband services to clients, but it surpasses other technologies by its coverage area, where one base station can cover a small city. In this paper, WiMAX technology is studied by exploring its basic concepts, applications, and advantages / disadvantages. Also a MATLAB simulator is used to verify the operation of the WiMAX system under various channel impairments and for variety of modulation schemes. From the simulation results, we found that WiMAX system works well in both AWGN and multipath fading channels, but under certain constraints that are addressed in this paper.

  15. Apuntes para una historia de la insurgencia en la Tierra Caliente de Guerrero, 1810-1821

    Directory of Open Access Journals (Sweden)

    Jesús Guzmán Urióstegui

    2009-06-01

    Full Text Available Durante el periodo de lucha por la independencia de México, de 1810 a 1821, una de las zonas geográficas más destacadas por su apoyo a la insurgencia fue la del Sur, cuyo territorio forma actualmente el estado de Guerrero. Primero con José María Morelos y Pavón y luego con Vicente Guerrero, la complicada geografía suriana y su no menos malsano clima puso en entredicho todos los intentos de las autoridades virreinales por reestablecer ahí la paz. Es cierto que los realistas lograron algunos éxitos, pero nunca pudieron vencer los afanes de libertad de los pobladores del lugar, especialmente de los de Tierra Caliente, mismos que si bien de 1811 a 1813 actuaron de manera en cierta forma aislada, pues Morelos no los tomaba muy en cuenta ya que prefería a los costeños, después fueron su sostén principal. Este papel lo refrendarían de igual manera de 1816 a 1821 con Guerrero, obligando a Agustín de Iturbide a negociar la paz.During Mexico's struggle for independence, from 1810 to 1821, one of the geographical zones that provided most support for the insurgents was the south, whose territory currently forms part of the state of Guerrero. First with José María Morelos y Pavón and then with Vicente Guerrero, the complicated geography of the south and its no less unhealthy climate jeopardized all the viceregal authorities' attempts to re-establish peace there. Although the royalists had some success, they were never able to overcome the locals' desire for freedom, especially those in Tierra Caliente. Although they acted in a somewhat isolated fashion from 1811 to 1813, since Morelos ignored them, preferring those on the coast, they subsequently provided his greatest support. They did the same with Guerrero from 1816 to 1821, forcing Agustín de Iturbide to negotiate peace.

  16. A study of multiple access schemes in satellite control network

    Science.gov (United States)

    Mo, Zijian; Wang, Zhonghai; Xiang, Xingyu; Wang, Gang; Chen, Genshe; Nguyen, Tien; Pham, Khanh; Blasch, Erik

    2016-05-01

    Satellite Control Networks (SCN) have provided launch control for space lift vehicles; tracking, telemetry and commanding (TTC) for on-orbit satellites; and, test support for space experiments since the 1960s. Currently, SCNs encounter a new challenge: how to maintain the high reliability of services when sharing the spectrum with emerging commercial services. To achieve this goal, the capability of multiple satellites reception is deserved as an update/modernization of SCN in the future. In this paper, we conducts an investigation of multiple access techniques in SCN scenario, e.g., frequency division multiple access (FDMA) and coded division multiple access (CDMA). First, we introduce two upgrade options of SCN based on FDMA and CDMA techniques. Correspondingly, we also provide their performance analysis, especially the system improvement in spectrum efficiency and interference mitigation. Finally, to determine the optimum upgrade option, this work uses CRISP, i.e., Cost, Risk, Installation, Supportability and Performance, as the baseline approach for a comprehensive trade study of these two options. Extensive numerical and simulation results are presented to illustrate the theoretical development.

  17. Data Access, Ownership, and Control: Toward Empirical Studies of Access Practices.

    Science.gov (United States)

    Hilgartner, Stephen; Brandt-Rauf, Sherry I.

    1994-01-01

    Examines how the new sociology of science can approach data access issues. A perspective is developed based on an analysis of the process of scientific production, data streams, and intellectual policy issues. (Contains 55 references.) (JLB)

  18. Study of Pea Accessions for Development of an Oilseed Pea

    Directory of Open Access Journals (Sweden)

    Ehsan Khodapanahi

    2012-09-01

    Full Text Available Global interest in stable energy resources coupled with growing demand for bio-oils in various conventional and arising industries has renewed the importance of vegetable oil production. To address this global interest, oilseed production has been increased in recent decades by different approaches, such as extending the cultivation area of oil crops, or breeding and growing genetically modified plants. In this study, pea (Pisum sativum L. accessions were screened for lipid content using a rapid extraction method. This method quantifies lipid concentration in pea seeds and was developed by assessing and comparing the results of existing extraction methods used for canola and soybean, the top two Canadian oilseeds. Seeds of 151 field pea accessions were grown to maturity in 2009 and 2010 at McGill University (Quebec, Canada. Overall, lipid concentration in pea seeds ranged from 0.9 to 5.0%. Among several seed characteristics, only seed shape (wrinkled verses round had a significant effect on the total lipid production in the seeds. Peas are a valuable source of protein and starch, but the lipid concentration in their seeds has been undervalued. This research supports the idea of developing a novel dual-purpose oilseed pea that emulates the protein and oil production in soybean seeds while being conveniently adapted to a colder climate.

  19. Simulación de la fluencia en caliente de un acero microaleado con un contenido medio de carbono. III parte. Ecuaciones constitutivas

    Directory of Open Access Journals (Sweden)

    Cabrera, J. M.

    1997-08-01

    Full Text Available According to the part 1 of this work the constitutive equations of the hot flow behaviour of a commercial microalloyed steel have been obtained. For this purpose, the uniaxial hot compression tests described in the part 2 were employed. Tests were carried out over a range of 5 orders of magnitude in strain rate and 300 °C of temperature. Experimental results are compared with the theoretical model introduced in the first part of this study. It is concluded that deviations between experimental and theoretical curves are lower than 10 %. It is shown that the classical hiperbolic sine constitutive equation described accurately the experimental behaviour provided that stresses are normalized by the Young's modulus and strain rates by the self-diffusion coefficient. An internal stress must also be introduced in the latter equation when the initial grain size is fine enough.

    Siguiendo el planteamiento teórico efectuado en la I parte de este trabajo, se determinaron las ecuaciones constitutivas del comportamiento a la deformación en caliente de un acero comercial microaleado con un contenido medio de carbono. Para este objetivo se emplearon los ensayos de compresión uniaxial en caliente ya descritos en la II parte, los cuales se efectuaron en un rango de cinco órdenes de magnitud en velocidad de deformación y 300 °C de temperatura. Se comparan los resultados experimentales con el modelo teórico introducido en la I parte y se verifica que el error es inferior al 10 %. Se comprobó que la clásica ecuación del seno hiperbólico podía describir con precisión el comportamiento observado siempre y cuando las tensiones se normalicen por el módulo de Young, las velocidades de deformación por el coeficiente de autodifusión de la austenita, y se considere un efecto adicional sobre la tensión cuando el tamaño de grano inicial sea suficientemente fino.

  20. Use of the Paid Open Access Option in Hybrid Open Access Journals in Agriculture: A Mixed-Methods Study

    Directory of Open Access Journals (Sweden)

    Megan Kocher

    2016-12-01

    Full Text Available We explore the use and usefulness of the hybrid open access publishing model in agricultural sciences using a combination of quantitative and qualitative methods. To ascertain the level of usage of the paid open access option in hybrid open access journals in agriculture, we studied the agriculture-related journals published by six commercial publishers. These publishers offer authors the option of paying a fee, often close to $3,000 per article, to make their article immediately freely available, usually with a Creative Commons license. We defined agriculture broadly but also assigned each journal to a subspecialty (e.g., animal science in order to see if there were differences based on these subdivisions. For each journal we gathered data for 2014-2015 and noted the total number of research articles and the number of those that were made freely available by authors paying the open access fee. To give context to our results we also surveyed local faculty in agricultural sciences, asking their reasons for considering the paid open access options and the sources of the funds to pay for it. Survey respondents were asked about their academic position and rank to see if there were differences to be noted. We also investigated the findability of the open access articles, noting if each individual publisher offered a way to easily locate all the freely available articles in a particular journal and if there are other avenues to easily locate these articles.

  1. Modeling spatial accessibility to parks: a national study

    Directory of Open Access Journals (Sweden)

    Lu Hua

    2011-05-01

    Full Text Available Abstract Background Parks provide ideal open spaces for leisure-time physical activity and important venues to promote physical activity. The spatial configuration of parks, the number of parks and their spatial distribution across neighborhood areas or local regions, represents the basic park access potential for their residential populations. A new measure of spatial access to parks, population-weighted distance (PWD to parks, combines the advantages of current park access approaches and incorporates the information processing theory and probability access surface model to more accurately quantify residential population's potential spatial access to parks. Results The PWD was constructed at the basic level of US census geography - blocks - using US park and population data. This new measure of population park accessibility was aggregated to census tract, county, state and national levels. On average, US residential populations are expected to travel 6.7 miles to access their local neighborhood parks. There are significant differences in the PWD to local parks among states. The District of Columbia and Connecticut have the best access to local neighborhood parks with PWD of 0.6 miles and 1.8 miles, respectively. Alaska, Montana, and Wyoming have the largest PWDs of 62.0, 37.4, and 32.8 miles, respectively. Rural states in the western and Midwestern US have lower neighborhood park access, while urban states have relatively higher park access. Conclusions The PWD to parks provides a consistent platform for evaluating spatial equity of park access and linking with population health outcomes. It could be an informative evaluation tool for health professionals and policy makers. This new method could be applied to quantify geographic accessibility of other types of services or destinations, such as food, alcohol, and tobacco outlets.

  2. Lexical Access and Reading Comprehension: A Study with University Students

    Directory of Open Access Journals (Sweden)

    Adriana Fajardo Hoyos

    2012-11-01

    Full Text Available Poor automatization of lexical access results in poor performance in reading comprehension (Perfetti, 1985 and 1991. This study relates the performance of 84 undergraduate students in word recognition and reading comprehension skills. Three items of a standardized test were given to the students—the reading of words and pseudowords to identify the percentage of error, and a reading comprehension item. The results show that 36% had high percentages of error in both lexical and semantic processes, while 19% had low percentages of error in both tasks. The effect of the lexical variables of frequency and length is evident. There is a higher percentage of error for low-frequency words and pseudowords and for long words and pseudowords. A higher rate of error in words and pseudowords correlated to a greater number of mistakes in reading comprehension.

  3. Cinéticas de deshidratación con aire caliente de zanahoria (Daucus caroto) en rodajas

    OpenAIRE

    Rodríguez Sibaja, Ana María; Fito Maupoey, Pedro

    1994-01-01

    Se realizó el Estudio de las cinéticas de secado con aire caliente de rodajas de zanahoria escaldadas. Se evaluaron diferentes temperaturas (60, 70 y 80 °C), humedades absolutas (12 y 55 g agua/kg aire seco) y velocidades del aire (0,5, 1,5 y 2,1 m/s). Se encontró un importante efecto de la temperatura en el proceso de secado: a mayores temperaturas el proceso se acelera, sin embargo la calidad sensorial se ve modificada. Las mejores condiciones para la deshidratación de zanahoria en rodajas ...

  4. Desarrollo de un termogenerador para electrificación y provisión de agua caliente a hogares rurales

    OpenAIRE

    Juanico, Luis Eduardo; Taglialavore, Eduardo; Rinalde, Gustavo Fabián; Ortiz, Luciana Cecilia; Di Lalla, Nicolas

    2015-01-01

    Se presenta un termogenerador portátil para electrificación inicial de hogares rurales trabajando sobre una cocina a leña u fuente térmica variable, basado en módulos BiTe. Dado que utiliza un baño de agua como sumidero de calor, se propone aquí un sistema mixto que provee de agua caliente al hogar y a la vez mejora el control térmico del termogenerador. Palabras claves: termogenerador, electricidad rural, cogeneración, prototipo. Fil: Juanico, Luis Eduardo. Consejo Nacional de I...

  5. Desarrollo de un refuerzo Montante/Pilar A para automoción mediante nuevos procesos de conformado en caliente

    OpenAIRE

    Berto, Sébastien

    2009-01-01

    El proyecto tiene como objetivo el estudio de un refuerzo montante A, pieza estructural, fabricado mediante un nuevo proceso de conformado por soplado en caliente, y su posible integración en un coche. Esta pieza debería integrarse al nuevo modelo de Seat Leon, por eso se tendrá que definir conjuntamente con el área de Desarrollo Carrocería del Centro Técnico de SEAT y el proveedor Linde Wiemann una geometría tanto encajable, como fabricable. La elaboración y la evolución de...

  6. Case studies of natural resource access in Jharkhand, India

    DEFF Research Database (Denmark)

    Sareen, Siddharth

    This policy brief illustrates that decentralisation can only effectively support residents’ access to natural resources if it both resolves policy overlaps at multiple levels to bring about inclusive and equitable access and aligns policies with ground realities for specific natural resources....

  7. Study of Womens Health Across the Nation (SWAN) Data: Investigator Access

    Data.gov (United States)

    U.S. Department of Health & Human Services — The SWAN Coordinating Center provides SWAN data access to SWAN Investigators through the study website. The SWAN website provides access to longitudinal data...

  8. Accessibility of a Destination-Based Transportation System: A Large Airport Study

    Institute of Scientific and Technical Information of China (English)

    SHI Jing; YING Xiwen

    2008-01-01

    The accessibility of a destination-based transportation system is defined to quantify the perform-ance of transportation systems which access a distinct destination. The access cost is used to reflect the utility of the transportation system including the fatigue and inconvenience in the total cost. The cost is quan-tified by two coefficients which represent the different characteristics of various people. The average cost and the income-relative accessibility are used to describe various aspects of the accessibility and to evaluate the accessibility of a destination-based system. A case study uses data from the Kunming transpor-tation system to evaluate the accessibility of the present city airport. The calibrated coefficients are then used to evaluate the transportation system to the new Kunming international airport. The results show that this transportation accessibility evaluation can be combined with transportation planning to study transporta-tion sub-systems.

  9. A Bibliometric Study of Scholarly Articles Published by Library and Information Science Authors about Open Access

    Science.gov (United States)

    Grandbois, Jennifer; Beheshti, Jamshid

    2014-01-01

    Introduction: This study aims to gain a greater understanding of the development of open access practices amongst library and information science authors, since their role is integral to the success of the broader open access movement. Method: Data were collected from scholarly articles about open access by library and information science authors…

  10. Efecto del contenido de azufre y del grado de desoxidación sobre la ductilidad en caliente de aceros inoxidables austeníticos resulfurados en estado de solidificación

    Directory of Open Access Journals (Sweden)

    Botella, J.

    1998-05-01

    Full Text Available The manufacture of free machining austenitic stainless steels features a specific drawback derived from their high sulphur content, which is needed for generating, into the austenitic matrix, inclusions to optimize the different machining operations. However, sulphur has a harmful effect on hot workability. This paper deals with assessing the effect of sulphur content and deoxidation level on the hot ductility of resulphurized austenitic stainless steels in as cast condition. Hot tensile tests were conducted on a Gleeble machine, at temperatures between 1,150 and 1,250°C, studying a ductility factor as a function of sulphur content, deoxidation degree, as well as type, size and distribution of sulfides. Results point out the harmful effect of increasing sulphur and oxygen contents on the hot workability of resulphurized austenitic stainless steels, and the need to control carefully the level of oxides of these steels.

    La fabricación de aceros inoxidables austeníticos de alta maquinabilidad presenta una problemática específica derivada de su elevado contenido de azufre; elemento necesario para generar en la matriz austenítica inclusiones que faciliten las diferentes operaciones de mecanizado, pero perjudicial en cuanto al deterioro que produce en la deformabilidad en caliente. Este artículo describe el estudio realizado para evaluar el efecto del contenido de azufre y el grado de desoxidación sobre la ductilidad en caliente de aceros inoxidables austeníticos resulfurados, partiendo de una estructura de solidificación (as cast condition. Se realizaron ensayos de tracción en un sistema Gleeble, a temperaturas entre 1.150 y 1.250°C, analizándose el parámetro de ductilidad en función del contenido de azufre, nivel de desoxidación, y del tipo, tamaño y distribución de los sulfuros presentes. Los resultados ponen de manifiesto el efecto perjudicial de los contenidos de azufre y oxígeno sobre la deformabilidad en

  11. Study of the thermo-mechanical behavior of medium carbon microalloyed steel during hot forming process using an artificial neural network; Estudio del comportamiento termo-mecanico de un acero microaleado de medio carbono durante un proceso de conformado en caliente usando una red neuronal artificial

    Energy Technology Data Exchange (ETDEWEB)

    Alcelay, I.; Pena, E.; Al Omar, A.

    2016-10-01

    The thermo-mechanical behavior of medium carbon microalloyed steel has been analyzed by an Artificial Neural Network (ANN). The flow curves for training the ANN have been obtained from the hot compression tests, carried out over a temperature range varying from 900 to 1150 degree centigrade and at different true strain rates ranging from 10{sup -}4 to 10 s{sup -}1. It has been found that the ANN model developed in this study is capable to predict accurately and efficiently the flow behavior of the studied steel and there is a good agreement between the experimental results and the ANN results. To analyze the formability of the studied steel, processing maps have been constructed on the basis of the Dynamic Materials Model (DMM), using the ANN values of the flow stress. The study of maps reveals the different domains of the flow behavior of the studied steel and shows the great similarity between the experimental results and the theoretical results, so the use of the ANN can constitute an interesting alternative for design and study of hot forming processes. (Author)

  12. A Study on Radio Access Technology Selection Algorithms

    CERN Document Server

    Wu, Leijia

    2012-01-01

    This book discusses the basic idea of Common Radio Resource Management (CRRM), especially on the Radio Access Technologies selection part of CRRM. It introduces two interaction functions (information reporting function and RRM decision support function) and four interaction degrees (from low to very high) of CRRM. Four possible CRRM topologies (CRRM server, integrated CRRM, Hierarchical CRRM, and CRRM in user terminals) are described. The book presents different Radio Access Technologies selection algorithms, including single criterion and multiple criteria based algorithms are presented and compares them. Finally, the book analyses the advantages and disadvantages of the different selection algorithms.

  13. A PRELIMINARY STUDY FOR DEVELOPING ACCESSIBLE MOOC SERVICES

    Directory of Open Access Journals (Sweden)

    Francisco Iniesto

    2016-11-01

    Full Text Available The flexibility of the MOOC service allows students to learn at their own time, place and pace, enhancing continuous communication and interaction between all participants in knowledge and community building. This model especially benefits people with disabilities, which can improve therefore their level of employability and social inclusion, reaching a better quality of life. Unfortunately the access to MOOC platforms present severe barriers: there is a lack of accessibility on the learning resources, the communicating tools and personalized user interfaces. All these issues add extra difficulties such as the need to develop specific digital or even social skills for students with functional diversity. In this context, MOOCs are leading a revolutionary computer and mobile-based scenario along with social technologies that will emerge new kinds of learning applications that enhance communication and collaboration processes. For that reason, this paper describes the need for designing an information model and related specifications to support a new strategy for delivering accessible MOOC courses to learners with special needs, in terms of their preferences and context of use based on a particular application profile. This user profile’s design is based on standard metadata schemas, data that provides information about other data, regarding the achievement of accessibility from content to user preferences.

  14. Study of fine particles (PM{sub 2.5}) during the dry-hot time in the Toluca city; Estudio de las particulas finas (PM{sub 2.5}) durante la epoca seca-caliente en la ciudad de Toluca

    Energy Technology Data Exchange (ETDEWEB)

    Rosendo G, V. [ITT, 50000 Toluca (Mexico); Aldape U, F. [ININ, 52750 La Marquesa, Estado de Mexico (Mexico)]. e-mail: vero_rosen2108@yahoo.com.mx

    2007-07-01

    The first obtained results of the analysis of the fine fraction particulate material (PM{sub 2.5}) samples collected in the Toluca City are presented. The samples analyzed are part of a more extensive campaign that contemplates the low project the one which one carries out this work and that it integrates three climatic times (dry-hot, of rains and dry-cold time) with the purpose of investigating the events of contamination in one complete year. The obtained results correspond to the dry-hot time and its include mainly the database starting from which the temporal variation graphs were obtained, the correlations among elements and the enrichment factor, as well as a multiple correlation analysis. Additionally the gravimetry was measured. Its are not observed significant episodes, however, it was found an element of the traces order, little common in other atmospheric studies as it is arsenic. From the gravimetry it was deduced that the air quality standard of fine particle, it does not violate. (Author)

  15. When Words of Wisdom are not Wise:A Study of Accessibility in Museum Exhibition Texts

    OpenAIRE

    Kjeldsen, Anna Karina; Nisbeth Jensen, Matilde

    2015-01-01

    Abstract: This article presents a study of the linguistic accessibility of Danish museum exhibition texts. The point of departure is the well-established paradigm shift in the international museum field proclaiming that today’s museums should strive to give physical and intellectual access to all visitors regardless of their social, cultural and intellectual backgrounds. The study explores to what extent Danish museums provide broad linguistic accessibility in their exhibition texts through t...

  16. Origen y endurecimiento por dispersión de carbonitruros en un acero comercial microaleado al niobio y laminado en caliente

    Directory of Open Access Journals (Sweden)

    Valencia, E.

    1998-12-01

    Full Text Available Throughout this work, a study on niobium carbonitrides formation and its hardening effect in a commercial hot strip microalloyed steel is presented. Optic and electron micrographs were obtained while mechanical tests and indirect models allow to predict samples yield strength, taking into account the steel composition and its structural characteristics. The results showed an extended precipitation on austenite boundary cells during the last thermomechanical processing stages, which probably achieved a considerable contribution to the hardening by dispersion in the material studied. Otherwise, no evidence of precipitation in ferrite by means of transmission electron microscopy (TEM was observed. A poor interphase precipitation was detected in about 10 per cent of the total observed zones with no appreciated contribution to the steel hardness.

    Se presenta un estudio sobre el origen de los carbonitruros de niobio y su efecto en el endurecimiento de un acero comercial microaleado y laminado en caliente. Para tal fin se utilizaron micrografías ópticas y electrónicas; así como también ensayos mecánicos y modelos indirectos que permitieron predecir el límite elástico teniendo en cuenta la composición del acero y sus características estructurales. Los resultados mostraron una extensa precipitación en la austenita durante las últimas fases del proceso de laminación siendo ésta responsable del principal aporte al endurecimiento por dispersión en el material investigado. No hubo evidencias de precipitación en la ferrita por observaciones al microscopio electrónico de transmisión y sólo una escasa precipitación interfásica fue detectada en un 10 % de las zonas observadas sin una apreciable contribución al endurecimiento del acero.

  17. Rebuilding Haiti's Educational Access: A Phenomenological Study of Technology Use in Education Delivery

    Science.gov (United States)

    Sandiford, Gladwyn A.

    2013-01-01

    There is a lack of access to technology blended with face-to-face instruction and learning in Haiti. Despite this lack of access, some Haitian college students have nevertheless leveraged technology to overcome the obstacles of poverty and obtain a higher education. This phenomenological study explored the lived experiences of 20 adult…

  18. Access to electronic health knowledge in five countries in Africa: a descriptive study

    Directory of Open Access Journals (Sweden)

    Honorati Masanja

    2007-05-01

    Full Text Available Abstract Background Access to medical literature in developing countries is helped by open access publishing and initiatives to allow free access to subscription only journals. The effectiveness of these initiatives in Africa has not been assessed. This study describes awareness, reported use and factors influencing use of on-line medical literature via free access initiatives. Methods Descriptive study in four teaching hospitals in Cameroon, Nigeria, Tanzania and Uganda plus one externally funded research institution in The Gambia. Survey with postgraduate doctors and research scientists to determine Internet access patterns, reported awareness of on-line medical information and free access initiatives; semi structured interviews with a sub-sample of survey participants to explore factors influencing use. Results In the four African teaching hospitals, 70% of the 305 postgraduate doctors reported textbooks as their main source of information; 66% had used the Internet for health information in the last week. In two hospitals, Internet cafés were the main Internet access point. For researchers at the externally-funded research institution, electronic resources were their main source, and almost all had used the Internet in the last week. Across all 333 respondents, 90% had heard of PubMed, 78% of BMJ on line, 49% the Cochrane Library, 47% HINARI, and 19% BioMedCentral. HINARI use correlates with accessing the Internet on computers located in institutions. Qualitative data suggested there are difficulties logging into HINARI and that sometimes it is librarians that limit access to passwords. Conclusion Text books remain an important resource for postgraduate doctors in training. Internet use is common, but awareness of free-access initiatives is limited. HINARI and other initiatives could be more effective with strong institutional endorsement and management to promote and ensure access.

  19. Caracterización de los sistemas ganaderos en dos comunidades del municipio de Tuzantla de la región de Tierra Caliente, Michoacán

    OpenAIRE

    C. I. Villa; M. J. Tena; R. Tzintzun; Val, D.

    2008-01-01

    Los sistemas de producción ganaderos de la región de Tierra Caliente están vinculados al manejo agrosilvopastoril, aprovechando una amplia gama de recursos forrajeros naturales, siendo las familias quienes conducen la administración y aprovechamiento de dichos recursos. Se buscó definir las características, recursos forrajeros aprovechables e insumos alimenticios, estimando su calidad nutricional, con el fin de encontrar estrategias de alimentación de ganado que red...

  20. Caracterización de aceros dual-phase obtenidos por laminación en caliente

    Directory of Open Access Journals (Sweden)

    Houbaert, Y.

    2011-02-01

    Full Text Available Samples were obtained from C-Mn-Si steel available in the market. Through a hot rolling and coiling process, it was possible to obtain Dual-Phase steel with microstructural and mechanical properties in the theoretical range typical of this material. The thermomechanical process consisted of a strong reduction by multiples pass of hot rolling at temperatures above Ar3, controlled-cooling the sheets during 5 s (at a rate of 20 °C/s in the equilibrium range α+γ. Temperature Ar3 measured by differential scanning calorimetry was 890 °C. Quenching was then carried out in the coiling temperatures range (500-675 °C, cooling the samples in accordance to an established curve that corresponds to the actual cooling curve of a coil. The microstructural characterization of the samples obtained was carried out by optical microscopy, scanning electron microscopy and atomic force microscopy. Additionally, texture measurements were carried out by X-ray diffraction in order to study the resulting orientations due to the finishing rolling temperature and coiling temperature, determining the influence on these parameters of the different texture components. The microstructural results were complemented with the normal and planar anisotropy indexes measured in according to the ASTM E-517 standard. The intensities of the different texture components were correlated with the values of anisotropy indexes, finding that it is possible to obtain only a slightly enhancement in the normal anisotropy index through an appropriate combination of finish rolling and coiling temperatures.

    Se tomaron muestras de acero al C-Mn-Si disponible en el mercado y mediante un proceso de laminación en caliente y bobinado, se obtuvo acero Dual Phase con microestructura y propiedades mecánicas dentro del rango teórico esperado de este material. El proceso termomecánico consistió en producir una fuerte reducción a temperaturas mayores a Ar3

  1. Right to health, essential medicines, and lawsuits for access to medicines--a scoping study.

    Science.gov (United States)

    Vargas-Peláez, Claudia Marcela; Rover, Marina Raijche Mattozo; Leite, Silvana Nair; Rossi Buenaventura, Francisco; Farias, Mareni Rocha

    2014-11-01

    Despite countries' efforts to ensure access to essential medicines, some people do not have their needs met, and often resort to the Judiciary to get access to the medicines they need. This phenomenon, known as "judicialization of access to medicines", has aroused the academia's interest in law, health and social fields. In this context, this scoping study investigates, through qualitative thematic analysis, the approach to judicialization of access to medicines (normative or social) and its possible impacts (positive or negative) described in articles published in scientific journals indexed in the main health databases prior to July 2012. 65 of 384 papers met the inclusion criteria of focusing on lawsuits for access to medicines or judicialization of access to medicines as a phenomenon; empiric studies, review articles or theoretical discussions, written in English, Portuguese or Spanish; most of them were about Brazil, Colombia and England. Results show that judicialization is a complex phenomenon that involves technical-scientific, legal and social aspects. The judicialization impacts mentioned have changed over time. In the late 1990s and early 2000s the emphasis of positive impacts predominated both on the normative and social approaches, having as main reference the movements that claimed from the States the guarantee of access to HIV/AIDS treatment. In the mid-2000s, however, there was an emphasis of the negative effects of judicial intervention, when lawsuits for access to medicines became a problem in some countries. Few studies used the social approach to judicialization. For this reason, there is not enough information about whether lawsuits for access to medicines are related to a real recognition of the right to health as an exercise of citizenship. Such aspects need to be further studied.

  2. Taking the Plunge: Open Access at the "Canadian Journal of Sociology." Case Studies in Open Access Publishing. Number Five

    Science.gov (United States)

    Haggerty, Kevin D.

    2008-01-01

    Introduction: Presents a personal account of the transfer to open access of the leading Canadian journal of sociology. Background: The Canadian Journal of Sociology had established a strong position, internationally, among sociology journals. However, subscriptions were falling as readers increasingly accessed the resource through libraries and a…

  3. An observational study of consumers' accessing of nutrition information in chain restaurants.

    Science.gov (United States)

    Roberto, Christina A; Agnew, Henry; Brownell, Kelly D

    2009-05-01

    In this observational study, we determined how frequently consumers accessed on-premises nutrition information provided at chain restaurants. The number of patrons entering and accessing nutrition information was recorded at 8 locations that were part of 4 major restaurant chains (McDonald's, Burger King, Starbucks, and Au Bon Pain). Only 6 (0.1%) of 4311 patrons accessed on-premises nutrition information before purchasing food. This very small percentage suggests that such information should be more prominently displayed, such as on restaurant menu boards, to help customers make informed decisions.

  4. An Observational Study of Consumers’ Accessing of Nutrition Information in Chain Restaurants

    Science.gov (United States)

    Agnew, Henry; Brownell, Kelly D.

    2009-01-01

    In this observational study, we determined how frequently consumers accessed on-premises nutrition information provided at chain restaurants. The number of patrons entering and accessing nutrition information was recorded at 8 locations that were part of 4 major restaurant chains (McDonald's, Burger King, Starbucks, and Au Bon Pain). Only 6 (0.1%) of 4311 patrons accessed on-premises nutrition information before purchasing food. This very small percentage suggests that such information should be more prominently displayed, such as on restaurant menu boards, to help customers make informed decisions. PMID:19299679

  5. Lexical access changes in patients with multiple sclerosis: a two-year follow-up study.

    Science.gov (United States)

    Sepulcre, Jorge; Peraita, Herminia; Goni, Joaquin; Arrondo, Gonzalo; Martincorena, Inigo; Duque, Beatriz; Velez de Mendizabal, Nieves; Masdeu, Joseph C; Villoslada, Pablo

    2011-02-01

    The aim of the study was to analyze lexical access strategies in patients with multiple sclerosis (MS) and their changes over time. We studied lexical access strategies during semantic and phonemic verbal fluency tests and also confrontation naming in a 2-year prospective cohort of 45 MS patients and 20 healthy controls. At baseline, switching lexical access strategy (both in semantic and in phonemic verbal fluency tests) and confrontation naming were significantly impaired in MS patients compared with controls. After 2 years follow-up, switching score decreased, and cluster size increased over time in semantic verbal fluency tasks, suggesting a failure in the retrieval of lexical information rather than an impairment of the lexical pool. In conclusion, these findings underline the significant presence of lexical access problems in patients with MS and could point out their key role in the alterations of high-level communications abilities in MS.

  6. Valency, Secondary Frequency, and Lexical Access: A Japanese Study.

    Science.gov (United States)

    Yamada, Jun; Kayamoto, Yuriko

    1998-01-01

    A study examined the effects of valency (associative value representing the number of two-kanji words containing the first-positional kanji of the word) on recognition of two-kanji words in Japanese. Frequency and valency of the first constituent kanji were significant factors for word recognition, and frequency of the first constituent kanji was…

  7. Lessons Learned from a Disabilities Accessible Study Abroad Trip

    Science.gov (United States)

    Twill, Sarah E.; Guzzo, Gaetano R.

    2012-01-01

    In the summer of 2009, a two-week study abroad program was specifically designed and executed to include students with disabilities. Recruitment efforts resulted in 11 student participants, six of who were identified as having a disability by the University's Office of Disability Services. Students participated in a two-course academic program;…

  8. Istanbul Inspirations - Case: A Study on the Accessibility of Historical Attractions

    OpenAIRE

    2014-01-01

    The aim of this thesis was to find out the current level of accessibility in few of the most important and historical tourist attractions in the city of Istanbul: Hippodrome, Hagia Sophia Museum and Blue Mosque. Also the accessibility of the surrounding area, Sultanahmet Square, and the transportation possibilities were assessed, for finding out how easily a person with disability or restriction can reach the selected attractions. The further purpose for the study was to find out if Istanbul ...

  9. A Qualitative Study of Barriers to Accessing Water, Sanitation and Hygiene for Disabled People in Malawi.

    Science.gov (United States)

    White, Sian; Kuper, Hannah; Itimu-Phiri, Ambumulire; Holm, Rochelle; Biran, Adam

    2016-01-01

    Globally, millions of people lack access to improved water, sanitation and hygiene (WASH). Disabled people, disadvantaged both physically and socially, are likely to be among those facing the greatest inequities in WASH access. This study explores the WASH priorities of disabled people and uses the social model of disability and the World Health Organization's International Classification of Functioning, Disability and Health (ICF) framework to look at the relationships between impairments, contextual factors and barriers to WASH access. 36 disabled people and 15 carers from urban and rural Malawi were purposively selected through key informants. The study employed a range of qualitative methods including interviews, emotion mapping, free-listing of priorities, ranking, photo voice, observation and WASH demonstrations. A thematic analysis was conducted using nVivo 10. WASH access affected all participants and comprised almost a third of the challenges of daily living identified by disabled people. Participants reported 50 barriers which related to water and sanitation access, personal and hand hygiene, social attitudes and participation in WASH programs. No two individuals reported facing the same set of barriers. This study found that being female, being from an urban area and having limited wealth and education were likely to increase the number and intensity of the barriers faced by an individual. The social model proved useful for classifying the majority of barriers. However, this model was weaker when applied to individuals who were more seriously disabled by their body function. This study found that body function limitations such as incontinence, pain and an inability to communicate WASH needs are in and of themselves significant barriers to adequate WASH access. Understanding these access barriers is important for the WASH sector at a time when there is a global push for equitable access.

  10. A Qualitative Study of Barriers to Accessing Water, Sanitation and Hygiene for Disabled People in Malawi.

    Directory of Open Access Journals (Sweden)

    Sian White

    Full Text Available Globally, millions of people lack access to improved water, sanitation and hygiene (WASH. Disabled people, disadvantaged both physically and socially, are likely to be among those facing the greatest inequities in WASH access. This study explores the WASH priorities of disabled people and uses the social model of disability and the World Health Organization's International Classification of Functioning, Disability and Health (ICF framework to look at the relationships between impairments, contextual factors and barriers to WASH access. 36 disabled people and 15 carers from urban and rural Malawi were purposively selected through key informants. The study employed a range of qualitative methods including interviews, emotion mapping, free-listing of priorities, ranking, photo voice, observation and WASH demonstrations. A thematic analysis was conducted using nVivo 10. WASH access affected all participants and comprised almost a third of the challenges of daily living identified by disabled people. Participants reported 50 barriers which related to water and sanitation access, personal and hand hygiene, social attitudes and participation in WASH programs. No two individuals reported facing the same set of barriers. This study found that being female, being from an urban area and having limited wealth and education were likely to increase the number and intensity of the barriers faced by an individual. The social model proved useful for classifying the majority of barriers. However, this model was weaker when applied to individuals who were more seriously disabled by their body function. This study found that body function limitations such as incontinence, pain and an inability to communicate WASH needs are in and of themselves significant barriers to adequate WASH access. Understanding these access barriers is important for the WASH sector at a time when there is a global push for equitable access.

  11. Using BRFSS Data to Study the Relationship between Access and Total Force Fitness

    Science.gov (United States)

    2014-07-18

    realized access. To obtain accurate variance estimates under the BRFSS complex survey design, data were analyzed using the ffiM- SPSS Complex Samples...realized access. To obtain accurate variance estimates under the BRFSS complex survey design, data were analyzed using the IBM- SPSS Complex Samples...The study sample was created in the Statistical Program for Social Sciences [ SPSS ] (version 20, IBM, Chicago, IL). To create the sample, data for all

  12. A Qualitative Study of Barriers to Accessing Water, Sanitation and Hygiene for Disabled People in Malawi

    Science.gov (United States)

    Kuper, Hannah; Itimu-Phiri, Ambumulire; Holm, Rochelle; Biran, Adam

    2016-01-01

    Globally, millions of people lack access to improved water, sanitation and hygiene (WASH). Disabled people, disadvantaged both physically and socially, are likely to be among those facing the greatest inequities in WASH access. This study explores the WASH priorities of disabled people and uses the social model of disability and the World Health Organization’s International Classification of Functioning, Disability and Health (ICF) framework to look at the relationships between impairments, contextual factors and barriers to WASH access. 36 disabled people and 15 carers from urban and rural Malawi were purposively selected through key informants. The study employed a range of qualitative methods including interviews, emotion mapping, free-listing of priorities, ranking, photo voice, observation and WASH demonstrations. A thematic analysis was conducted using nVivo 10. WASH access affected all participants and comprised almost a third of the challenges of daily living identified by disabled people. Participants reported 50 barriers which related to water and sanitation access, personal and hand hygiene, social attitudes and participation in WASH programs. No two individuals reported facing the same set of barriers. This study found that being female, being from an urban area and having limited wealth and education were likely to increase the number and intensity of the barriers faced by an individual. The social model proved useful for classifying the majority of barriers. However, this model was weaker when applied to individuals who were more seriously disabled by their body function. This study found that body function limitations such as incontinence, pain and an inability to communicate WASH needs are in and of themselves significant barriers to adequate WASH access. Understanding these access barriers is important for the WASH sector at a time when there is a global push for equitable access. PMID:27171520

  13. STUDYING THE SECONDARY STRUCTURE OF ACCESSION NUMBER USING CETD MATRIX

    Directory of Open Access Journals (Sweden)

    Anamika Dutta

    2016-10-01

    Full Text Available This paper, we have tried to analyze about the Secondary Structure of nucleotide sequences of rice. The data have been collected from NCBI (National Centre for Biotechnology Information using Nucleotide as data base. All the programs were developed using R programming language using “sequinr” package. Here, we have used CETD matrix method to study the prediction. The conclusions are drawn accordingly.

  14. Assessing Accessibility in Four Library and Information Sciences Journals: A Comparative Study

    Directory of Open Access Journals (Sweden)

    Ali Sadatmoosavi

    2010-09-01

    Full Text Available The present study targets the rate of accessibility and decay of internet citations for the articles published in four LIS journals available through Emerald database for the 2005-2008 period. The findings indicated that of the 2886 URL cited, 1858 (64% were accessible while the rest were inaccessible. Using Internet Explorer, Internet Archive and Google, the inaccessible citations were reduced to 5%. URL accessibility demonstrated that 60% of the internet based citations are accessible through the URL cited. Among the error messages received, file error represented the highest (61%. URL distribution showed that the. net and. gov domains are more enduring and persistant when compared with. edu,. org and. com domains. The average internet citation for each article was 4.8.

  15. Measuring spatial accessibility of urban parks: a case study of Qingdao City, China

    Science.gov (United States)

    Yin, Haiwei; Song, Yongjun; Kong, Fanhua; Qi, Yi

    2007-06-01

    Urban parks are the important recreation site for citizens, viewed as basal green infrastructure and crucial amenities in urban areas, and usually perform important ecological and socio-economic functions. With socio-economic development, Chinese people and governments pay much more attention to urban green spaces, especially urban parks, and more and more citizens have the desire for contact with nature, and are willing to live and work close to urban parks. Consequently, governments plan to optimize urban parks allocation in order to meet citizens' increasing needs. Quantification of accessibility of urban parks is a prerequisite to appraise and allocate them with equity as a tool for decision-making in planning. In this paper, supported by Remote Sensing and GIS, the accessibility of urban parks based on high resolution data was analyzed with minimum nearest distance method at the house level and container method at block groups scale, through a case study of Qingdao city, China. The distances between houses (origins) and urban parks (destinations) are measured as the Euclidian (straight-line) distance. Four levels of access, very good, good, poor and very poor, were classified based on the distance between residence and the nearest urban park, and the area of urban park per capita. Results demonstrate that the spatial patterns of accessibility are consentaneous on the whole by using two different methods, for the spatial pattern is relation to the distribution of urban parks. However, the accurateness in results is quite different. The accessibility of urban parks acquired by the minimum nearest distance method is more accurate and appropriate than under the container method. The results calculated with the container measure show that 58.07 % of block groups have very poor or poor access level, which means the accessibility of urban parks is not good in Qingdao city as a whole. In addition, the spatial pattern of the accessibility is not equipoise. The southern

  16. An evaluation of edge effects in nutritional accessibility and availability measures: a simulation study

    Directory of Open Access Journals (Sweden)

    Porter Dwayne E

    2010-07-01

    Full Text Available Abstract Background This paper addresses the statistical use of accessibility and availability indices and the effect of study boundaries on these measures. The measures are evaluated via an extensive simulation based on cluster models for local outlet density. We define outlet to mean either food retail store (convenience store, supermarket, gas station or restaurant (limited service or full service restaurants. We designed a simulation whereby a cluster outlet model is assumed in a large study window and an internal subset of that window is constructed. We performed simulations on various criteria including one scenario representing an urban area with 2000 outlets as well as a non-urban area simulated with only 300 outlets. A comparison is made between estimates obtained with the full study area and estimates using only the subset area. This allows the study of the effect of edge censoring on accessibility measures. Results The results suggest that considerable bias is found at the edges of study regions in particular for accessibility measures. Edge effects are smaller for availability measures (when not smoothed and also for short range accessibility Conclusions It is recommended that any study utilizing these measures should correct for edge effects. The use of edge correction via guard areas is recommended and the avoidance of large range distance-based accessibility measures is also proposed.

  17. Determinación de la tensión de laminación en caliente a partir de ensayos de tracción

    Directory of Open Access Journals (Sweden)

    Monsalve, A.

    2013-02-01

    Full Text Available Prediction of mechanical behavior of hot rolled steels is an important aspect during industrial processing. The rolling stress needed to the process were estimated using three methods, the first of which is related to the Sellars`s model that takes into account the friction coefficient and the yield stress. The second method estimates the rolling stress as the average stress obtained during the tensile tests. The third method, estimates the rolling stress from the data of power consumed by the rolling equipment. This methodology was applied in this study to a carbon steel. The conclusion of the work is that results obtained by Sellars`s and consumed power, are coincident. The method based on the average tensile stress predicts stresses lower than those obtained with other two methods.

    La predicción del comportamiento mecánico de aceros laminados en caliente es un aspecto importante durante el procesamiento industrial. En el presente trabajo, las tensiones necesarias para el proceso de laminado, fueron estimadas usando tres métodos, el primero de los cuales se basa en la aplicación del modelo de Sellars, que toma en cuenta el coeficiente de fricción y el límite elástico. El segundo método, estima la tensión de laminado a partir de la tensión promedio obtenida durante los ensayos de tracción. El tercer método, estima la tensión de laminado a partir de los datos de potencia consumida por el equipo de laminación. Esta metodología fue aplicada en este estudio a un acero al carbono. La conclusión de este trabajo es que los resultados obtenidos por los métodos basados en el modelo de Sellars y de la potencia consumida, son coincidentes, en tanto que el método basado en la tensión de tracción, presenta valores ligeramente menores a los predichos por los otros modelos.

  18. Access to Tuberculosis Services for Individuals with Disability in Rural Malawi, a Qualitative Study

    Science.gov (United States)

    Grut, Lisbet; Sanudi, Lifah; Braathen, Stine Hellum; Jürgens, Thomas; Eide, Arne H.

    2015-01-01

    Tuberculosis occurs in all populations, but with higher prevalence in poor contexts. Vulnerable groups, including individuals with disability, run a particular risk due to poorer access to information and health services. Studying access to tuberculosis services for vulnerable groups in poor contexts may provide useful insight into the quality of such services in low-income contexts. This article aims to present a contextual understanding of access to tuberculosis services for people with disabilities in one district in southern Malawi. A qualitative method with semi-structured interviews and site observations was applied. In all, 89 participants were interviewed: 47 persons with disability, 11 parents/guardians of youths with disability, and the remaining 31 comprising eight health workers, four community rehabilitation assistants and volunteers, and 19 leaders in the community.Our main findings are that lack of information and knowledge, and considerable confusion related to tuberculosis, its cause and how to protect oneself, are major barrier to accessing services. Disease awareness and personal risk perception are key factors in this regard. Further findings concerns the pathways to tuberculosis related health services, in particular having a test and completing the treatment. The combination of lack of knowledge and barriers in accessing tests implies substantial availability and access problems.It is of importance to understand the combined impact of individual, social, contextual, and systems barriers to fully address the complexity of accessing tuberculosis services for vulnerable groups in poor populations. Lack of disability specific strategies in the local health services may be part of the reason why individuals with disability to not access such services. PMID:25830950

  19. Access to tuberculosis services for individuals with disability in rural Malawi, a qualitative study.

    Science.gov (United States)

    Grut, Lisbet; Sanudi, Lifah; Braathen, Stine Hellum; Jürgens, Thomas; Eide, Arne H

    2015-01-01

    Tuberculosis occurs in all populations, but with higher prevalence in poor contexts. Vulnerable groups, including individuals with disability, run a particular risk due to poorer access to information and health services. Studying access to tuberculosis services for vulnerable groups in poor contexts may provide useful insight into the quality of such services in low-income contexts. This article aims to present a contextual understanding of access to tuberculosis services for people with disabilities in one district in southern Malawi. A qualitative method with semi-structured interviews and site observations was applied. In all, 89 participants were interviewed: 47 persons with disability, 11 parents/guardians of youths with disability, and the remaining 31 comprising eight health workers, four community rehabilitation assistants and volunteers, and 19 leaders in the community.Our main findings are that lack of information and knowledge, and considerable confusion related to tuberculosis, its cause and how to protect oneself, are major barrier to accessing services. Disease awareness and personal risk perception are key factors in this regard. Further findings concerns the pathways to tuberculosis related health services, in particular having a test and completing the treatment. The combination of lack of knowledge and barriers in accessing tests implies substantial availability and access problems.It is of importance to understand the combined impact of individual, social, contextual, and systems barriers to fully address the complexity of accessing tuberculosis services for vulnerable groups in poor populations. Lack of disability specific strategies in the local health services may be part of the reason why individuals with disability to not access such services.

  20. Access to tuberculosis services for individuals with disability in rural Malawi, a qualitative study.

    Directory of Open Access Journals (Sweden)

    Lisbet Grut

    Full Text Available Tuberculosis occurs in all populations, but with higher prevalence in poor contexts. Vulnerable groups, including individuals with disability, run a particular risk due to poorer access to information and health services. Studying access to tuberculosis services for vulnerable groups in poor contexts may provide useful insight into the quality of such services in low-income contexts. This article aims to present a contextual understanding of access to tuberculosis services for people with disabilities in one district in southern Malawi. A qualitative method with semi-structured interviews and site observations was applied. In all, 89 participants were interviewed: 47 persons with disability, 11 parents/guardians of youths with disability, and the remaining 31 comprising eight health workers, four community rehabilitation assistants and volunteers, and 19 leaders in the community.Our main findings are that lack of information and knowledge, and considerable confusion related to tuberculosis, its cause and how to protect oneself, are major barrier to accessing services. Disease awareness and personal risk perception are key factors in this regard. Further findings concerns the pathways to tuberculosis related health services, in particular having a test and completing the treatment. The combination of lack of knowledge and barriers in accessing tests implies substantial availability and access problems.It is of importance to understand the combined impact of individual, social, contextual, and systems barriers to fully address the complexity of accessing tuberculosis services for vulnerable groups in poor populations. Lack of disability specific strategies in the local health services may be part of the reason why individuals with disability to not access such services.

  1. Emergency intraosseous access in a helicopter emergency medical service: a retrospective study

    Directory of Open Access Journals (Sweden)

    Heradstveit Bård E

    2010-10-01

    Full Text Available Abstract Background Intraosseous access (IO is a method for providing vascular access in out-of-hospital resuscitation of critically ill and injured patients when traditional intravenous access is difficult or impossible. Different intraosseous techniques have been used by our Helicopter Emergency Medical Services (HEMS since 2003. Few articles document IO use by HEMS physicians. The aim of this study was to evaluate the use of intraosseous access in pre-hospital emergency situations handled by our HEMS. Methods We reviewed all medical records from the period May 2003 to April 2010, and compared three different techniques: Bone Injection Gun (B.I.G® - Waismed, manual bone marrow aspiration needle (Inter V - Medical Device Technologies and EZ-IO® (Vidacare, used on both adults and paediatric patients. Results During this seven-year period, 78 insertion attempts were made on 70 patients. Overall success rates were 50% using the manual needle, 55% using the Bone Injection Gun, and 96% using the EZ-IO®. Rates of success on first attempt were significantly higher using the EZ-IO® compared to the manual needle/Bone Injection Gun (p Conclusions Newer intraosseous techniques may enable faster and more reliable vascular access, and this can lower the threshold for intraosseous access on both adult and paediatric patients in critical situations. We believe that all emergency services that handle critically ill or injured paediatric and adult patients should be familiar with intraosseous techniques.

  2. Video game access, parental rules, and problem behavior: a study of boys with autism spectrum disorder.

    Science.gov (United States)

    Engelhardt, Christopher R; Mazurek, Micah O

    2014-07-01

    Environmental correlates of problem behavior among individuals with autism spectrum disorder remain relatively understudied. The current study examined the contribution of in-room (i.e. bedroom) access to a video game console as one potential correlate of problem behavior among a sample of 169 boys with autism spectrum disorder (ranging from 8 to 18 years of age). Parents of these children reported on (1) whether they had specific rules regulating their child's video game use, (2) whether their child had in-room access to a variety of screen-based media devices (television, computer, and video game console), and (3) their child's oppositional behaviors. Multivariate regression models showed that in-room access to a video game console predicted oppositional behavior while controlling for in-room access to other media devices (computer and television) and relevant variables (e.g. average number of video game hours played per day). Additionally, the association between in-room access to a video game console and oppositional behavior was particularly large when parents reported no rules on their child's video game use. The current findings indicate that both access and parental rules regarding video games warrant future experimental and longitudinal research as they relate to problem behavior in boys with autism spectrum disorder.

  3. COMPORTAMIENTO DE UNA MEZCLA DENSA DE ASFALTO EN CALIENTE MODIFICADA CON DESECHO DE POLICLORURO DE VINILO (PVC

    Directory of Open Access Journals (Sweden)

    Hugo Alexander Rondón Quintana

    2008-01-01

    Full Text Available En el mundo la tecnología de los asfaltos modificados ha sido una técnicaampliamente utilizada para mejorar las características que presentan las mezclasasfálticas convencionales cuando experimentan niveles elevados de tránsito ygradientes de temperatura. Por lo general lo que se busca con este tipo detecnología es mejorar algunas de las propiedades mecánicas y reológicas de losasfaltos y las mezclas asfálticas convencionales tales como la susceptibilidad térmica, la rigidez, y la resistencia al envejecimiento, a las deformaciones plásticas ya la fatiga. El artículo presenta los resultados experimentales de ensayar una mezcla asfáltica densa en caliente modificada con desecho de policloruro de vinilo (el cual se denominará en el presente trabajo PVC. Para la evaluación del comportamiento de las mezclas asfálticas convencionales y modificadas se realizaron ensayos Marshall, módulo dinámico y deformación permanente. Para el cemento asfáltico (CA con y sin aditivo se realizaron ensayos de caracterización de asfaltos como penetración, punto de ablandamiento y viscosidad. La modificación de las mezclas se realizó por vía húmeda y seca. Adicionando desecho de PVC al cemento asfáltico y a las mezclas, se obtiene un material más rígido con mayor resistencia a la penetración y menor susceptibilidad térmica a fluir.

  4. ACCESSIBLE BUILT ENVIRONMENT FOR THE ELDERLY AND DISABLED IN MALAYSIA: HOTELS AS CASE STUDIES

    Directory of Open Access Journals (Sweden)

    Asiah Abdul Rahim

    2010-12-01

    Full Text Available In Malaysia, it has become of increasing importance to study ways to improve the level of accessibility in buildings for the elderly and disabled people in the built environment, especially in hotels and resorts. The methods used in this study to identify areas to improve are access audits, table research and interviews. The data from these studies are analysed using a descriptive analysis based on access audits, observations, plan analysis, photographs and questionnaires. Access audits were carried out in two hotels and resorts in July and November 2007 in selected areas of East Malaysia. The selected hotels and resorts were constructed in the 1980s; one is located at the countryside and the other in the city centre. The findings will allow the building provider to upgrade existing facilities in order to accommodate accessible built environment for the elderly and disabled people. This will allow the elderly and disabled people to move freely, safely and being more easily integrated with the society in areas of public building and public spaces.

  5. EVALUACIÓN ESPACIO-TEMPORAL DE VEGETACIÓN Y USO DE SUELO DE LA CUENCA RÍO CALIENTE, JALISCO, MÉXICO.

    OpenAIRE

    H.U. Ramírez-Sánchez; M.E. García-Guadalupe; G. Villalpando-Piña

    2013-01-01

    El territorio mexicano ha sufrido un proceso acelerado de degradación de bosques con transformación en áreas de uso agropecuario o urbano. Los estudios de procesos dinámicos del uso del suelo son importantes y necesarios, ya que proporcionan información de la degradación producto de factores antrópicos. El objetivo de este trabajo fue identificar y cuantificar la variación espacial de los tipos de vegetación y usos de suelo en la Cuenca Río Caliente del Área de Protección de Flora y Fauna La ...

  6. CARACTERÍSTICAS DEL QUESO TEPEQUE DE LA TIERRA CALIENTE DE MICHOACÁN: UN QUESO PRODUCIDO EN UN SISTEMA SILVOPASTORIL INTENSIVO

    OpenAIRE

    Alejandra Donají Solís Méndez; Raquel Martínez Loperena; Javier Solorio Sánchez; Julieta G. Estrada Flores; Francisca Avilés Nova; Ana Tarin Gutiérrez Ibáñez; Octavio Alonso Castelán Ortega

    2013-01-01

    El objetivo del presente estudio fue describir las características del Queso Tepeque de la Tierra Caliente del Estado de Michoacán en términos de su región de origen, proceso de manufactura, características fisicoquímicas y microbiológicas, y documentar los cambios atribuibles a la implementación de un sistema silvopastoril intensivo (SSPi) para la alimentación del ganado. La metodología consintió en visitar la zona de estudio para recolectar información sobre el territorio donde se produce e...

  7. Determinants of lexical access in pure-anomic recovery:a longitudinal study

    Institute of Scientific and Technical Information of China (English)

    Xiao ZHOU; Hui LIANG; Ming-wei XU; Ben-yan LUO

    2009-01-01

    Many studies involving lexical access in picture-naming tasks have been undertaken at a point in time, mainly focusing on age of acquisition (AoA). To identify the real determinates of lexical access in recovery and their traces in the brain, we carried out a longitudinal study on a Chinese pure anomic patient using multiple logistic regression analysis. We found that AoA played an important role in early recovery but not in total recovery, whereas familiarity was significant in the whole process. From a new dynamic point of view, our results indicate that AoA and familiarity are the main determinants of lexical access in anomia recovery. We suggest that the changing effects of AoA during recovery may be related to the pathologic process; AoA and familiarity should be taken into account in constructing materials to assess and treat anomic patients.

  8. Geology, geochemistry, geochronology, and economic potential of Neogene volcanic rocks in the Laguna Pedernal and Salar de Aguas Calientes segments of the Archibarca lineament, northwest Argentina

    Science.gov (United States)

    Richards, J. P.; Jourdan, F.; Creaser, R. A.; Maldonado, G.; DuFrane, S. A.

    2013-05-01

    This study presents new geochemical, geochronological, isotopic, and mineralogical data, combined with new geological mapping for a 2400 km2 area of Neogene volcanic rocks in northwestern Argentina near the border with Chile, between 25°10‧S and 25°45‧S. The area covers the zone of intersection between the main axis of the Cordillera Occidental and a set of NW-SE-trending structures that form part of the transverse Archibarca lineament. This lineament has localized major ore deposits in Chile (e.g., the late Eocene La Escondida porphyry Cu deposit) and large volcanic centers such as the active Llullaillaco and Lastarría volcanoes on the border between Chile and Argentina, and the Neogene Archibarca, Antofalla, and Cerro Galán volcanoes in Argentina. Neogene volcanic rocks in the Laguna Pedernal and Salar de Aguas Calientes areas are mostly high-K calc-alkaline in composition, and range from basaltic andesites, through andesites and dacites, to rhyolites. Magmatic temperatures and oxidation states, estimated from mineral compositions, range from ~ 1000 °C and ∆FMQ ≈ 1.0-1.5 in andesites, to ~ 850 °C and ∆FMQ ≈ 1.5-2.0 in dacites and rhyolites. The oldest rocks consist of early-middle Miocene andesite-dacite plagioclase-pyroxene-phyric lava flows and ignimbrites, with 40Ar/39Ar ages ranging from 17.14 ± 0.10 Ma to 11.76 ± 0.27 Ma. Their major and trace element compositions are typical of the Andean Central Volcanic Zone, and show strong crustal contamination trends for highly incompatible elements such as Cs, Rb, Th, and U. These rocks are geochemically grouped as sub-suite 1. This widespread intermediate composition volcanism was followed in the middle-late Miocene by a period of more focused rhyodacitic flow-dome complex formation. These felsic rocks are characterized by less extreme enrichments in highly incompatible elements, and increasing depletion of heavy rare earth elements. These rocks are geochemically grouped as sub-suite 2. The

  9. Retina-on-a-chip: a microfluidic platform for point access signaling studies.

    Science.gov (United States)

    Dodson, Kirsten H; Echevarria, Franklin D; Li, Deyu; Sappington, Rebecca M; Edd, Jon F

    2015-12-01

    We report on a microfluidic platform for culture of whole organs or tissue slices with the capability of point access reagent delivery to probe the transport of signaling events. Whole mice retina were maintained for multiple days with negative pressure applied to tightly but gently bind the bottom of the retina to a thin poly-(dimethylsiloxane) membrane, through which twelve 100 μm diameter through-holes served as fluidic access points. Staining with toluidine blue, transport of locally applied cholera toxin beta, and transient response to lipopolysaccharide in the retina demonstrated the capability of the microfluidic platform. The point access fluidic delivery capability could enable new assays in the study of various kinds of excised tissues, including retina.

  10. Accessibility of shared space for visually impaired persons : A comparative field study

    NARCIS (Netherlands)

    Havik, Else; Steyvers, Franciscus J.J.M.; Kooijman, Aart; Melis, Bart

    2015-01-01

    Shared Space is a concept that comprises the design and planning process of a public space. There are concerns about the accessibility of Shared Spaces for people who are visually impaired. In a comparative field study, the wayfinding performance of 25 visually impaired persons (VIPs) was observed w

  11. Fulfilling an Institutional and Public Good Mission: A Case Study of Access

    Science.gov (United States)

    Batman, Renee F.

    2013-01-01

    Access to higher education has been and remains a critical issue, yet research typically focuses on students and programs which may overlook the role of the faculty. Through an in-depth case study, the perspectives of tenured and tenure-track faculty at a predominately White, Midwestern land-grant, research institution are described as they relate…

  12. Video Game Access, Parental Rules, and Problem Behavior: A Study of Boys with Autism Spectrum Disorder

    Science.gov (United States)

    Engelhardt, Christopher R.; Mazurek, Micah O.

    2014-01-01

    Environmental correlates of problem behavior among individuals with autism spectrum disorder remain relatively understudied. The current study examined the contribution of in-room (i.e. bedroom) access to a video game console as one potential correlate of problem behavior among a sample of 169 boys with autism spectrum disorder (ranging from 8 to…

  13. Access Barriers to Dental Health Care in Children with Disability. A Questionnaire Study of Parents

    Science.gov (United States)

    Gerreth, Karolina; Borysewicz-Lewicka, Maria

    2016-01-01

    Background: A patient's with disability everyday life is rife with many limitations such as architectural, transport, information as well as medical, psychological, legal, economic and social barriers. The aim of this study was to evaluate access to dental health care of special-care schoolchildren with intellectual disability on the basis of…

  14. Direct access in primary care and patient satisfaction: a European study.

    NARCIS (Netherlands)

    Kroneman, M.W.; Maarse, H.; Zee, J. van der

    2006-01-01

    Objective: This study addressed the question to what extent gate-keeping or direct access to health care services influences the satisfaction with GP-services by the population in 18 European countries ("old" EU-countries plus Norway, Iceland and Switzerland). METHODS: Two datasets were collected. F

  15. Security Study of Access XP Database%Access XP数据库的安全性研究

    Institute of Scientific and Technical Information of China (English)

    李海燕

    2005-01-01

    在信息化时代来临、Internet高速发展的今天,信息资源的经济和社会价值越来越明显,而数据库系统所管理、存储的数据已成为各个部门宝贵的信息资源,所以其安全保密性是目前所迫切需要解决的问题.笔者从数据库的安全性、保密性的角度,详细地阐述了Microsoft Access XP数据库的安全机制;探讨了实现Microsoft Access XP数据库不同保护级别的各种方法;还讨论了共享级安全性和用户级安全性问题.

  16. Access to Firearms Among Orange County Youth: A School-based Study

    Directory of Open Access Journals (Sweden)

    Gorchynski, Julie

    2006-08-01

    Full Text Available Objective: School-associated firearm violence among children and adolescents is a national public concern. The objective of this study was to determine the accessibility of firearms, methods of firearm access and firearm safety knowledge among middle and high school students in Orange County, California. Methods: After permission from school officials and parents was obtained, a 24-question survey was distributed to 176 students in grades 6 through 12 at four schools in Orange County. Data was collected over a 12-month period beginning in February 2003. Data analysis was presented in proportions. In addition, cross tabulations were performed to determine which factors were associated with access to guns, having fired a gun, and firearm possession at school. Results: The mean age of participants was 16.1 years. Seventy-seven (45% were male, 121 (69% Hispanic, and 171 (94% were of middle income. Four participants (2.3% admitted to gang involvement, 47 (26.7% had fired a gun. Those more likely to have fired a gun appeared to be non-Hispanic males (p= 0.001. Seventy-five (43% reported access to a gun. Older students and those in grades 9 to 12 were more likely to have access to a gun (p= 0.01, which they stated could be obtained from their homes, friends or relatives (4.5% to 22%. No students admitted to bringing a gun to school. Two (1.1% students stated that they had thought of using a gun at school. One hundred one students (62% were taught firearm safety by their parent(s. Conclusion: Almost half of the students in this study acknowledged that they could gain access to a gun and two students had thought about using a gun at school. Firearm education, safety and counseling are of paramount importance to ensure safety among school youths.

  17. Household food access and child malnutrition: results from the eight-country MAL-ED study

    Directory of Open Access Journals (Sweden)

    Psaki Stephanie

    2012-12-01

    Full Text Available Abstract Background Stunting results from decreased food intake, poor diet quality, and a high burden of early childhood infections, and contributes to significant morbidity and mortality worldwide. Although food insecurity is an important determinant of child nutrition, including stunting, development of universal measures has been challenging due to cumbersome nutritional questionnaires and concerns about lack of comparability across populations. We investigate the relationship between household food access, one component of food security, and indicators of nutritional status in early childhood across eight country sites. Methods We administered a socioeconomic survey to 800 households in research sites in eight countries, including a recently validated nine-item food access insecurity questionnaire, and obtained anthropometric measurements from children aged 24 to 60 months. We used multivariable regression models to assess the relationship between household food access insecurity and anthropometry in children, and we assessed the invariance of that relationship across country sites. Results Average age of study children was 41 months. Mean food access insecurity score (range: 0–27 was 5.8, and varied from 2.4 in Nepal to 8.3 in Pakistan. Across sites, the prevalence of stunting (42% was much higher than the prevalence of wasting (6%. In pooled regression analyses, a 10-point increase in food access insecurity score was associated with a 0.20 SD decrease in height-for-age Z score (95% CI 0.05 to 0.34 SD; p = 0.008. A likelihood ratio test for heterogeneity revealed that this relationship was consistent across countries (p = 0.17. Conclusions Our study provides evidence of the validity of using a simple household food access insecurity score to investigate the etiology of childhood growth faltering across diverse geographic settings. Such a measure could be used to direct interventions by identifying children at risk of illness and

  18. Policies to Spur Energy Access. Executive Summary; Volume 1, Engaging the Private Sector in Expanding Access to Electricity; Volume 2, Case Studies to Public-Private Models to Finance Decentralized Electricity Access

    Energy Technology Data Exchange (ETDEWEB)

    Walters, Terri [National Renewable Energy Lab. (NREL), Golden, CO (United States); Rai, Neha [International Institute for Environment and Development (IIED), London (England); Esterly, Sean [National Renewable Energy Lab. (NREL), Golden, CO (United States); Cox, Sadie [National Renewable Energy Lab. (NREL), Golden, CO (United States); Reber, Tim [National Renewable Energy Lab. (NREL), Golden, CO (United States); Muzammil, Maliha [Univ. of Oxford (United Kingdom); Mahmood, Tasfiq [International Center for Climate Change and Development, Baridhara (Bangladesh); Kaur, Nanki [International Institute for Environment and Development (IIED), London (England); Tesfaye, Lidya [Echnoserve Consulting (Ethiopia); Mamuye, Simret [Echnoserve Consulting (Ethiopia); Knuckles, James [Univ. of London (England). Cass Business School; Morris, Ellen [Columbia Univ., New York, NY (United States); de Been, Merijn [Delft Univ. of Technology (Netherlands); Steinbach, Dave [International Institute for Environment and Development (IIED), London (England); Acharya, Sunil [Digo Bikas Inst. (Nepal); Chhetri, Raju Pandit [National Renewable Energy Lab. (NREL), Golden, CO (United States); Bhushal, Ramesh [National Renewable Energy Lab. (NREL), Golden, CO (United States)

    2015-09-01

    Government policy is one of the most important factors in engaging the private sector in providing universal access to electricity. In particular, the private sector is well positioned to provide decentralized electricity products and services. While policy uncertainty and regulatory barriers can keep enterprises and investors from engaging in the market, targeted policies can create opportunities to leverage private investment and skills to expand electricity access. However, creating a sustainable market requires policies beyond traditional electricity regulation. The report reviews the range of policy issues that impact the development and expansion of a market for decentralized electricity services from establishing an enabling policy environment to catalyzing finance, building human capacity, and integrating energy access with development programs. The case studies in this report show that robust policy frameworks--addressing a wide range of market issues--can lead to rapid transformation in energy access. The report highlights examples of these policies in action Bangladesh, Ethiopia, Mali, Mexico, and Nepal.

  19. Constraining the Late Mesozoic and Early Tertiary Tectonic Evolution of Southern Mexico: Structure and Deformation History of the Tierra Caliente Region.

    Science.gov (United States)

    Cabral-Cano; Draper; Lang; Harrison

    2000-07-01

    We analyze the structure and assess the deformation history of the Tierra Caliente Metamorphic Complex (TCMC) of southern Mexico, where Laramide accretion of exotic terranes is in debate. The TCMC consists of a south-plunging antiform fault that is bounded on both its eastern and western flanks. Tierra Caliente Metamorphic Complex rocks show at least two phases of compressional deformation. The first and most prominent records a mean tectonic transport direction of 068 degrees. This phase is responsible for east-verging asymmetrical folding and thrusting of both metamorphic and superjacent sedimentary rocks. The second phase has an average transport direction of 232 degrees and is restricted to the western portion of the TCMC. A third phase is responsible for normal faulting. Lack of discernible deformation before Late Cretaceous time indicates that the main deformation phase is coincident with Laramide orogenesis elsewhere in the North American Cordillera. The stratigraphy, structure, and deformational history of the TCMC do not require accretion of exotic terranes. We explain the Mesozoic tectonostratigraphic evolution of the TCMC in terms of deposition and deformation of Mesozoic volcanic and sedimentary strata over the attenuated continental crust of the North American plate.

  20. INFLUENCIA DE UN PRE-TRATAMIENTO OSMÓTICO SOBRE LA DESHIDRATACIÓN POR AIRE CALIENTE DE MANZANA GRANNY SMITH

    Directory of Open Access Journals (Sweden)

    LUIS PUENTE

    2010-01-01

    Full Text Available En este trabajo se estudió la influencia de un pretratamiento osmótico (DO a tres concentraciones (30, 40 y 50 ºBrix sobre un proceso de deshidratación de manzana por aire caliente (SAC a dos temperaturas (55 y 65 ºC. Las velocidades de deshidratación fueron mayores para las manzanas pretratadas en comparación al producto fresco, distinguiéndose una corta primera etapa de inducción solo en SAC, en ambos tipos de tratamiento (DO+SAC una imperceptible segunda etapa de velocidad constante, y una clara tercera etapa de velocidad de deshidratación decreciente I y II. La velocidad de deshidratación se modeló utilizando las ecuaciones de Newton, Page y HendersonPabis. De estos modelos el que mejor explica el proceso fue la ecuación de Page, seguida por Newton y HendersonPabis. Respecto de la temperatura, los niveles ensayados fueron significativos como factor de proceso al presentar una interacción con los pretratamientos osmóticos. La mejor condición la conformó el pretratamiento osmótico DO 50º Brix con aire caliente SAC 65 ºC.

  1. Does improved access to diagnostic imaging results reduce hospital length of stay? A retrospective study

    Directory of Open Access Journals (Sweden)

    Hurlen Petter

    2010-09-01

    Full Text Available Abstract Background One year after the introduction of Information and Communication Technology (ICT to support diagnostic imaging at our hospital, clinicians had faster and better access to radiology reports and images; direct access to Computed Tomography (CT reports in the Electronic Medical Record (EMR was particularly popular. The objective of this study was to determine whether improvements in radiology reporting and clinical access to diagnostic imaging information one year after the ICT introduction were associated with a reduction in the length of patients' hospital stays (LOS. Methods Data describing hospital stays and diagnostic imaging were collected retrospectively from the EMR during periods of equal duration before and one year after the introduction of ICT. The post-ICT period was chosen because of the documented improvement in clinical access to radiology results during that period. The data set was randomly split into an exploratory part used to establish the hypotheses, and a confirmatory part. The data was used to compare the pre-ICT and post-ICT status, but also to compare differences between groups. Results There was no general reduction in LOS one year after ICT introduction. However, there was a 25% reduction for one group - patients with CT scans. This group was heterogeneous, covering 445 different primary discharge diagnoses. Analyses of subgroups were performed to reduce the impact of this divergence. Conclusion Our results did not indicate that improved access to radiology results reduced the patients' LOS. There was, however, a significant reduction in LOS for patients undergoing CT scans. Given the clinicians' interest in CT reports and the results of the subgroup analyses, it is likely that improved access to CT reports contributed to this reduction.

  2. Meckel's cave access: anatomic study comparing the endoscopic transantral and endonasal approaches.

    Science.gov (United States)

    Van Rompaey, Jason; Suruliraj, Anand; Carrau, Ricardo; Panizza, Benedict; Solares, C Arturo

    2014-04-01

    Recent advances in endonasal endoscopy have facilitated the surgical access to the lateral skull base including areas such as Meckel's cave. This approach has been well documented, however, few studies have outlined transantral specific access to Meckel's. A transantral approach provides a direct pathway to this region obviating the need for extensive endonasal and transsphenoidal resection. Our aim in this study is to compare the anatomical perspectives obtained in endonasal and transantral approaches. We prepared 14 cadaveric specimens with intravascular injections of colored latex. Eight cadavers underwent endoscopic endonasal transpterygoid approaches to Meckel's cave. Six additional specimens underwent an endoscopic transantral approach to the same region. Photographic evidence was obtained for review. 30 CT scans were analyzed to measure comparative distances to Meckel's cave for both approaches. The endoscopic approaches provided a direct access to the anterior and inferior portions of Meckel's cave. However, the transantral approach required shorter instrumentation, and did not require clearing of the endonasal corridor. This approach gave an anterior view of Meckel's cave making posterior dissection more difficult. A transantral approach to Meckel's cave provides access similar to the endonasal approach with minimal invasiveness. Some of the morbidity associated with extensive endonasal resection could possibly be avoided. Better understanding of the complex skull base anatomy, from different perspectives, helps to improve current endoscopic skull base surgery and to develop new alternatives, consequently, leading to improvements in safety and efficacy.

  3. Hot-pressing steatite bodies; Obtencion de eseatita por prensado en caliente

    Energy Technology Data Exchange (ETDEWEB)

    Aparicio Arroyo, E.

    1967-07-01

    Requirements for some special nuclear engineering ceramic shapes are: big size, impervious, dimensional accuracy and good mechanical and dielectric properties. Limitations of te conventional methods and advantages of te hot pressing techniques for the manufacturing of these shapes are discussed. Hot pressing characteristics of a certain steatite powder are studied. Occurrence of an optimum densification temperature just above the tale decomposition range is found. Experimental data show that the height/diameter ratio of the specimen has no effect on the sintering conditions. Increasing darkness from the graphite mould is detected above the optimum temperature. The hot-pressed steatite is compared with a fired dry-pressed sample of the same composition. (Author) 13 refs.

  4. The Cornell/Xerox Commission on Preservation and Access Joint Study in Digital Preservation. Report: Phase 1 (January 1990-December 1991). Digital Capture, Paper Facsimiles, and Network Access.

    Science.gov (United States)

    Kenney, Anne R.; Personius, Lynne K.

    The primary emphasis of this study of the use of digital technology to preserve library materials was the capture of brittle books as digital images and the production of printed paper facsimiles. Of equal interest, however, was the role of digital technology in providing access to library resources, and preliminary work in this area has also been…

  5. Increasing access--a qualitative study of homelessness and palliative care in a major urban center.

    Science.gov (United States)

    Krakowsky, Yonah; Gofine, Mirriam; Brown, Pnina; Danziger, Jana; Knowles, Holly

    2013-05-01

    Rates of morbidity and mortality are significantly higher in homeless populations. Homeless people experience many barriers to receive adequate palliative care. This qualitative study examines how a major urban city's palliative care resources can be improved to increase access and better serve the homeless. Audiotaped interviews were preformed with 7 homeless care providers in Toronto, Canada, and their transcripts were analyzed using thematic analysis. The findings of the study suggest that in order to increase access and to serve the city's terminally ill homeless better, the following 4 areas must be addressed: (1) increasing positive interaction between the health care system and the homeless, (2) training staff to deal with the unique issues confronting the homeless, (3) providing patient-centered care, and (4) diversifying the methods of delivery.

  6. Criterios de predicción de inestabilidades plásticas en procesos de conformado en caliente. (Parte II. Caracterización de la fluencia plástica de un acero microaleado de medio carbono usando criterios continuos y fenomenológicos

    Directory of Open Access Journals (Sweden)

    Al Omar, A.

    2010-04-01

    Full Text Available In the study of hot forming processes the knowledge of interaction between microstructural behaviour and control process parameters such as temperature, strain rate and strain is very important. In the last decades, processing maps have been developed to design, control and optimize the hot deformation of various metallic materials. In this work, in order to study the hot formability of medium carbon microalloyed steel, during hot compression tests, a comparative study between two types of processing maps constructed using phenomenological and thermodynamic continuum criteria have been carried out. The analysis of the maps indicates that the studied steel does not undergo any type of plastic instability. However, the maps corresponding to the deformation of ε = 0,6 reveal a domain of dynamic recrystallization, considered as the more efficiently domain within the “safe” region process. This domain is centered at 1150 °C and 10 s–1. Also, the comparative study of the obtained results shows the difference between the positions of plastic deformation domains predicted by the two criteria.

    En el estudio de los procesos de conformado en caliente es muy importante conocer la interacción entre el comportamiento microestructural y los parámetros de control del proceso de deformación, tales como temperatura, velocidad de deformación, deformación, etc. En las últimas décadas, los mapas de procesado han sido elaborados para diseñar, controlar y optimizar la deformación en caliente de varios materiales metálicos. En el presente trabajo, con el fin de estudiar la conformabilidad en caliente de un acero microaleado de medio carbono, durante ensayos de compresión en caliente, se presenta un estudio comparativo entre dos tipos de mapas de procesado construidos usando criterios termodinámicos continuos y criterios fenomenológicos. El análisis de los mapas de procesado indica que el acero estudiado no sufre ningún tipo de

  7. Respuesta mecánica durante la inversión de la deformación en caliente de un acero microaleado

    Directory of Open Access Journals (Sweden)

    Badiola, D. J.

    2005-08-01

    Full Text Available The mechanical behaviour of a Nb-microalloyed steel under non monotonie conditions has been studied using double hit hot torsion tests involving changes in the twist direction. For strain reversal conditions, a clear mechanical transient has been observed. This transient has been characterized by a steep hardening region just after reversal which takes place up to a stress level near the one reached before reversing, then a region showing a low strain hardening rate and finally, a region extending up to the convergence of monotonie and reversal behaviours. Testing temperatures and strain rates have ranged from 950°C to 1200°C and from 0.01s-1 to 0.1s-1, respectively. Applied prestrains before reversal have varied from 0.03 to 0.25 in order to avoid the occurrence of dynamic recrystallization during previous strain. Lastly, some relationships have been established between the deformation conditions and the parameters defining the transient. These parameters depend mainly on the prestrain.

    Se ha estudiado el comportamiento mecánico de un acero microaleado con niobio bajo condiciones no monótonas de deformación mediante ensayos de torsión en caliente de doble pasada con cambio de sentido de giro entre la primera y la segunda de ellas. Se ha observado que la inversión de la deformación produce un transitorio en las curvas de fluencia caracterizado por un endurecimiento rápido hasta alcanzar un nivel de tensión menor al que se tenía, justo, antes de aplicar el cambio en el sentido de giro, una etapa de endurecimiento nulo y, finalmente, una región en la que el comportamiento mecánico durante la inversión tiende progresivamente al comportamiento mecánico monótono. Las temperaturas de ensayo se han variado entre 950 °C y 1.200 °C y las velocidades de deformación entre 0,01 y 0,1 s-1 Las deformaciones previas aplicadas antes de la reversión han estado comprendidas entre 0,03 y 0,25, evit

  8. Criterios de predicción de inestabilidades plásticas en procesos de conformado en caliente. (Parte I: Revisión teórica

    Directory of Open Access Journals (Sweden)

    Al Omar, A.

    2010-04-01

    Full Text Available Hot working processes often induce high levels of deformation at high strain rates, and impose very complex multiaxial modes of solicitation. These processes are essentially limited by apparition and development of plastic instabilities. These may be the direct cause of rapid crack propagation, which lead to a possible final rupture. The complexity of deformation modes and the simultaneous intervention of several parameters have led many researchers to develop various criteria, with different approaches, to predict the occurrence of defects and to optimize process control parameters. The aim of the present paper is to summarize the general characteristics of some instability criteria, widely used in the literature, for the prediction of plastic instabilities during hot working. It was considered appropriate to divide the work into two parts: part I presents the phenomenological criteria for the prediction of plastic instabilities, based on descriptive observation of microscopic phenomena of the deformation (strain hardening and strain rate sensitivity, and discusses the continuum criteria based on the principle of maximum rate of entropy production of irreversible thermodynamics applied to continuum mechanics of large plastic flow. Also, this part provides a bibliographical discussion among several authors with regard to the physical foundations of dynamic materials model. In part II, of the work, a comparative study has been carried out to characterize the flow instability during a hot working process of a medium carbon microalloyed using phenomenological and continuum criteria.

    Los procesos de conformado de materiales inducen frecuentemente altos grados de deformación, a grandes velocidades de deformación, e imponen modos de solicitación multiaxiales y muy complejos. Dichos procesos quedan esencialmente limitados por la aparición y desarrollo de inestabilidades plásticas. Éstas pueden ser la causa directa de la propagación r

  9. A study of Iranian immigrants’ experiences of accessing Canadian health care services: a grounded theory

    Directory of Open Access Journals (Sweden)

    Dastjerdi Mahdieh

    2012-09-01

    Full Text Available Abstract Background Immigration is not a new phenomenon but, rather, has deep roots in human history. Documents from every era detail individuals who left their homelands and struggled to reestablish their lives in other countries. The aim of this study was to explore and understand the experience of Iranian immigrants who accessed Canadian health care services. Research with immigrants is useful for learning about strategies that newcomers develop to access health care services. Methods The research question guiding this study was, “What are the processes by which Iranian immigrants learn to access health care services in Canada?” To answer the question, a constructivist grounded theory approach was applied. Initially, unstructured interviews were conducted with 17 participants (11 women and six men who were adults (at least 18 years old and had immigrated to Canada within the past 15 years. Eight participants took part in a second interview, and four participants took part in a third interview. Results Using a constructivist grounded theory approach, “tackling the stumbling blocks of access” emerged as the core category. The basic social process (BSP, becoming self-sufficient, was a transitional process and had five stages: becoming a stranger; feeling helpless; navigating/seeking information; employing strategies; and becoming integrated and self-sufficient. We found that “tackling the stumbling blocks of access” was the main struggle throughout this journey. Some of the immigrants were able to overcome these challenges and became proficient in accessing health care services, but others were unable to make the necessary changes and thus stayed in earlier stages/phases of transition, and sometimes returned to their country of origin. Conclusion During the course of this journey a substantive grounded theory was developed that revealed the challenges and issues confronted by this particular group of immigrants. This process explains

  10. Physical and Visual Accessibilities in Intensive Care Units: A Comparative Study of Open-Plan and Racetrack Units.

    Science.gov (United States)

    Rashid, Mahbub; Khan, Nayma; Jones, Belinda

    2016-01-01

    This study compared physical and visual accessibilities and their associations with staff perception and interaction behaviors in 2 intensive care units (ICUs) with open-plan and racetrack layouts. For the study, physical and visual accessibilities were measured using the spatial analysis techniques of Space Syntax. Data on staff perception were collected from 81 clinicians using a questionnaire survey. The locations of 2233 interactions, and the location and length of another 339 interactions in these units were collected using systematic field observation techniques. According to the study, physical and visual accessibilities were different in the 2 ICUs, and clinicians' primary workspaces were physically and visually more accessible in the open-plan ICU. Physical and visual accessibilities affected how well clinicians' knew their peers and where their peers were located in these units. Physical and visual accessibilities also affected clinicians' perception of interaction and communication and of teamwork and collaboration in these units. Additionally, physical and visual accessibilities showed significant positive associations with interaction behaviors in these units, with the open-plan ICU showing stronger associations. However, physical accessibilities were less important than visual accessibilities in relation to interaction behaviors in these ICUs. The implications of these findings for ICU design are discussed.

  11. [A particular anthropometric method for the study of accessibility of a workstation].

    Science.gov (United States)

    Molinaro, V; Del Ferraro, S

    2008-01-01

    One of the main factors which can involve musculo-skeletal disorders is the assumption of awkward postures. These lasts can be caused, in some cases, by a no-suitable collocation of some devices which are indispensable for the work. It is possible to evaluate if the chosen collocation is adequate or not by studying the accessibility of the workstation with a special regard for the accessibility of the devices placed inside the workstation. EN ISO 14738:2002 is a specific standard which has been adopted in Italy as UNI EN ISO 14738:2004. This standard gives some useful requirements, in terms of accessibility, to design a workstation at no-mobile machinery. In this study, the authors have analyzed a check out workstation by following the requirements described in UNI EN ISO 14738:2004. Critical aspects, related to the organization both of the work activities either of the workstation, have been highlighted taking into account standard criteria. Finally the authors make a new design of the check out workstation trying to optimize device collocation in order to reduce awkward postures. The new configuration has been investigated by applying the criteria mentioned in the standard.

  12. STUDY OF ADVANTAGES AND DISADVANTAGES OF TOTALLY IMPLANTABLE VENOUS ACCESS DEVICE

    Directory of Open Access Journals (Sweden)

    J. Ahmadi

    2006-07-01

    Full Text Available Totally implantable venous access devices (TIVAD or implantable catheter ports are devices which can be implanted subcutaneously. They enable prolonged and repeated access to the vascular system, into the peritoneal cavity or intravertebral space. This device is particularly useful for repeated medical injection, for blood sampling or transfusion of blood and blood derivatives and for total parenteral nutrition (TPN. Although many patients benefit from the insertion of TIVAD without any secondary effects, any surgical implantation can nevertheless lead to complications. ‎In this study, we investigated the advantages and disadvantages of TIVAD catheter in pediatric age group. A total of 94 cases, 2 to 14 years old, were included in our study. We implanted TIVAD in these patients for chemotherapy in 83 cases (88.29%, for prolonged TPN in 6 cases (6.38%, for corticosteroid and antibiotic therapy after ‎Kasai operation in 2 cases (2.12%, for intermittent IV therapy in 2 cases (2.12% and for need to partial parenteral nutrition in 1 case (1.06%. Out of 94 cases, 14 cases (15% had some kind of complications and 80 cases (85% had no complication. There was no mortality. Most patients and their parents (82 cases, 87.23% were satisfied from TIVAD. ‎It seems that TIVAD can be a useful device for many chronic patients who need an IV access for multiple injections.

  13. Assessment of the vaccine industry in Iran in context of accession to WTO: a survey study

    Directory of Open Access Journals (Sweden)

    Hashemi Meshkini Amir

    2012-08-01

    Full Text Available Abstract Background The vaccine industry is one of the most important health-related industries. It can be affected by accession to the World Trade Organization (WTO because of probable dramatic changes in the business environment. Iran has already initiated accession negotiations. Purpose of the study In this paper, we investigate the position of, challenges to, and opportunities for vaccine manufacturing in Iran with regard to accession to the WTO. Methods This is a qualitative and cross sectional study. To collect information, we designed a questionnaire and interviewed some of the vaccine industry’s key opinion leaders in Iran. Before the interviews were conducted, the questionnaires were sent to these individuals by email. Results According to the interviewees, the country’s main challenges with regard to accession to the WTO are the lack of firm internal intellectual property (IP rules, not being recognized as pre-qualified by the World Health Organization (WHO, the use of old equipment, and a lack of cooperation with global vaccine companies. Major conclusions Iran’s local vaccine industry, with a long history and international reputation that could be used as an advantage, is faced with several challenges, such as problems with keeping up with Current Good Manufacturing Practice (cGMP, a lack of adequate and meaningful investment in research and development (R&D, and limitations on private sector participation in the production of vaccines. Gradual privatization of the industry, improved international relations, utilization of the R&D power of small hi-tech companies, consistent education of human resources, and modernization of infrastructures and equipment are among the suggested solutions.

  14. Assessment of the Vaccine Industry in Iran in Context of Accession to WTO: a Survey Study

    Directory of Open Access Journals (Sweden)

    Amir Hashemi Meshkini

    2012-08-01

    Full Text Available Background :The vaccine industry is one of the most important health-related industries. It can be affected by accession to the World Trade Organization (WTO because of probable dramatic changes in the business environment. Iran has already initiated accession negotiations. Purpose of the study In this paper, we investigate the position of, challenges to, and opportunities for vaccine manufacturing in Iran with regard to accession to the WTO. Methods:This is a qualitative and cross sectional study. To collect information, we designed a questionnaire and interviewed some of the vaccine industry's key opinion leaders in Iran. Before the interviews were conducted, the questionnaires were sent to these individuals by email. Results:According to the interviewees, the country's main challenges with regard to accession to the WTO are the lack of firm internal intellectual property (IP rules, not being recognized as pre-qualified by the World Health Organization (WHO, the use of old equipment, and a lack of cooperation with global vaccine companies. Major conclusions Iran's local vaccine industry, with a long history and international reputation that could be used as an advantage, is faced with several challenges, such as problems with keeping up with Current Good Manufacturing Practice (cGMP, a lack of adequate and meaningful investment in research and development (R&D, and limitations on private sector participation in the production of vaccines. Gradual privatization of the industry, improved international relations, utilization of the R&D power of small hi-tech companies, consistent education of human resources, and modernization of infrastructures and equipment are among the suggested solutions.

  15. Improving access to electronic health records for people with intellectual disability: a qualitative study.

    Science.gov (United States)

    van Dooren, Kate; Lennox, Nick; Stewart, Madeline

    2013-01-01

    People with intellectual disability represent ~2-3% of the Australian population and experience elevated rates of mortality and morbidity compared with the general population. People with intellectual disability, and their families and carers, must keep track of extensive medical information while also managing turnover of paid staff, general practitioners and other health professionals, making them beneficiaries of Australia's new eHealth record system. Although they are key users, there is a lack of knowledge about the accessibility of the system for individuals with intellectual disability, or those responsible for managing their health information. This is a missed opportunity to improve the lives of an already overlooked group. This study aimed to identify the facilitators and barriers to registering for an eHealth record network for people with intellectual disability and those supporting them to manage their health information. We interviewed potential users of eHealth records, including four people with intellectual disability, three family members and two residential support workers. Our findings suggest that decision-makers involved in the roll-out of the eHealth record networks should incorporate 'reasonable accommodations' to improve accessibility for people with intellectual disability and those who support them to manage their health information. This includes identifying and eliminating the barriers to accessibility of eHealth records and taking appropriate measures to promote access to individuals with intellectual disability. People with intellectual disability and the people who support them are a diverse group with a range of abilities. The translation of their views into practice will help to improve the eHealth system for this and other vulnerable population groups.

  16. The geographical digital divide in broadband access and governmental policies in Japan: three case studies

    Directory of Open Access Journals (Sweden)

    Yoshio Arai

    2013-06-01

    Full Text Available Broadband access is indispensable for advanced Internet services, because voluminous data transfers have recently become popular in developed societies. Although broadband access has spread to a certain degree in developed countries/regions, geographical gaps in broadband access (the so-called “geographical digital divide” remain. Based on three case studies in less-favoured areas of Japan (Hokkaido, Nagano Prefecture and Mie Prefecture, we examined how the geographical digital divide is being bridged, and the contributions that national and local government policies make to this process. Several implications were apparent. First, integrating communication infrastructures with manifold digital services, such as cable television services and broadband access, is an effective way to extend broadband to less-favoured areas. The Japanese government has promoted the construction of digital cable television networks, and they have played a significant role in the completion of universal broadband services. The challenge of digitizing terrestrial television broadcasting has been behind these policies. Another effective means of extending broadband has been the pressure exerted by local governments (under the national policy scheme on private cable television companies to bring their services to even the least populated regions. Finally, in those areas where private digital network services are unprofitable, the establishment of a publicly funded cable business (using a budget-transfer scheme, for example may be an effective option for extending broadband services. In general, the challenge of bridging the geographical digital divide should be tackled with a broad set of regional promotion policies for less-favoured regions.

  17. Accessibility of Referent Information Influences Sentence Planning: An Eye-Tracking Study

    Science.gov (United States)

    Ganushchak, Lesya Y.; Konopka, Agnieszka E.; Chen, Yiya

    2017-01-01

    This study investigated the time-course of online sentence formulation (i.e., incrementality in sentence planning) as a function of the preceding discourse context. In two eye-tracking experiments, participants described pictures of transitive events (e.g., a frog catching a fly). The accessibility of the agent (Experiment 1) and patient (Experiment 2) was manipulated in the discourse preceding each picture. In the Literal condition, participants heard a story where the agent or patient was mentioned explicitly (fly, frog). In the Associative condition, the agent or patient was not mentioned but was primed by the story (via semantically or associatively related words such as insect, small, black, wings). In the No Mention condition, the stories did not explicitly mention or prime either character. The target response was expected to have the same structure and content in all conditions (SVO sentences: The frog catches the fly). The results showed that participants generally looked first at the agent, before speech onset, regardless of condition, and then at the patient around and after speech onset. Analyses of eye movements in time window associated with linguistic planning showed that formulation was sensitive mainly to whether the agent was literally mentioned in the context or not and to lesser extent to conceptual accessibility (Experiment 1). Furthermore, accessibility of the patient (be it literal mention of its name or only availability of the concept) showed no effect on the time-course of utterance planning (Experiment 2). Together, these results suggest that linguistic planning before speech onset was influenced only by the accessibility of the first character name in the sentence, providing further evidence for highly incremental planning in sentence production. PMID:28293201

  18. Enhancing Independent Internet Access for Individuals with Mental Retardation through Use of a Specialized Web Browser: A Pilot Study.

    Science.gov (United States)

    Davies, Daniel K.; Stock, Steven E.; Wehmeyer, Michael L.

    2001-01-01

    In this study, a prototype web browser, called Web Trek, that utilizes multimedia to provide access for individuals with cognitive disabilities was developed and pilot-tested with 12 adults with mental retardation. The Web Trek browser provided greater independence in accessing the Internet compared to Internet Explorer. (Contains references.)…

  19. The FODA-TDMA satellite access scheme - Presentation, study of the system, and results

    Science.gov (United States)

    Celandroni, Nedo; Ferro, Erina

    1991-12-01

    A description is given of FODA-TDMA, a satellite access scheme designed for mixed traffic. The study of the system is presented and the choice of some parameters is justified. A simplified analytic solution is found, describing the steady-state behavior of the system. Some results of the simulation tests for an already existing hardware environment are also presented for the channel speeds of 2 and 8 Mb/s, considering both the stationary and the transient cases. The results of the experimentation at 2 Mb/s on the satellite Eutelsat-F2 are also presented and compared with the results of the simulation.

  20. Locks and raspberries: a comparative study of single-board computers for access control

    OpenAIRE

    Romin, Andreas

    2016-01-01

    Over the past decade, there has been a drastic development of the single-board computer market. These computers are now in a position where they can compete with classic embedded hardware. Such fast improvement has led ASSA ABLOY, a well-known lock and security company, to see value in replacing some of their existing access control hardware with an off-the-shelf single-board computer. Therefore, a comparative study of single-board computers was performed for this company. Some of the compare...

  1. Using urban commuting data to calculate a spatiotemporal accessibility measure for food environment studies.

    Science.gov (United States)

    Widener, Michael J; Farber, Steven; Neutens, Tijs; Horner, Mark W

    2013-05-01

    Improving spatial access to healthy foods in urban regions is recognized as an important component of reducing the prevalence of chronic illness and achieving better health outcomes. Previously, researchers exploring this domain have calculated accessibility measures derived from the travel cost from home locations to nearby food stores. This approach disregards additional opportunities that present themselves as residents move throughout the city. A time-geographic accessibility measure is utilized to explore how single-occupancy automobile commuting affords access to supermarkets. Results show residents in some TAZs have more access when accounting for their commuting behavior than when measuring access from their home. This finding suggests more nuanced calculations of accessibility are necessary to fully understand which urban populations have greater access to healthy food.

  2. Distance matters: a population based study examining access to maternity services for rural women

    Directory of Open Access Journals (Sweden)

    Kornelsen Jude

    2011-06-01

    Full Text Available Abstract Background In the past fifteen years there has been a wave of closures of small maternity services in Canada and other developed nations which results in the need for rural parturient women to travel to access care. The purpose of our study is to systematically document newborn and maternal outcomes as they relate to distance to travel to access the nearest maternity services with Cesarean section capabililty. Methods Study population is all women carrying a singleton pregnancy beyond 20 weeks and delivering between April 1, 2000 and March 31, 2004 and residing outside of the core urban areas of British Columbia. Maternal and newborn data was linked to specific geographic catchments by the B.C. Perinatal Health Program. Catchments were stratified by distance to nearest maternity service with Cesarean section capabililty if greater than 1 hour travel time or level of local service. Hierarchical logistic regression was used to test predictors of adverse newborn and maternal outcomes. Results 49,402 cases of women and newborns resident in rural catchments were included. Adjusted odds ratios for perinatal mortality for newborns from catchments greater than 4 hours from services was 3.17 (95% CI 1.45-6.95. Newborns from catchments 2 to 4 hours, and 1 to 2 hours from services generated rates of 179 and 100 NICU 3 days per thousand births respectively compared to 42 days for newborns from catchments served by specialists. Conclusions Distance matters: rural parturient women who have to travel to access maternity services have increased rates of adverse perinatal outcomes.

  3. Montreal Archive of Sleep Studies: an open-access resource for instrument benchmarking and exploratory research.

    Science.gov (United States)

    O'Reilly, Christian; Gosselin, Nadia; Carrier, Julie; Nielsen, Tore

    2014-12-01

    Manual processing of sleep recordings is extremely time-consuming. Efforts to automate this process have shown promising results, but automatic systems are generally evaluated on private databases, not allowing accurate cross-validation with other systems. In lacking a common benchmark, the relative performances of different systems are not compared easily and advances are compromised. To address this fundamental methodological impediment to sleep study, we propose an open-access database of polysomnographic biosignals. To build this database, whole-night recordings from 200 participants [97 males (aged 42.9 ± 19.8 years) and 103 females (aged 38.3 ± 18.9 years); age range: 18-76 years] were pooled from eight different research protocols performed in three different hospital-based sleep laboratories. All recordings feature a sampling frequency of 256 Hz and an electroencephalography (EEG) montage of 4-20 channels plus standard electro-oculography (EOG), electromyography (EMG), electrocardiography (ECG) and respiratory signals. Access to the database can be obtained through the Montreal Archive of Sleep Studies (MASS) website (http://www.ceams-carsm.ca/en/MASS), and requires only affiliation with a research institution and prior approval by the applicant's local ethical review board. Providing the research community with access to this free and open sleep database is expected to facilitate the development and cross-validation of sleep analysis automation systems. It is also expected that such a shared resource will be a catalyst for cross-centre collaborations on difficult topics such as improving inter-rater agreement on sleep stage scoring.

  4. Access to women's health care: a qualitative study of barriers perceived by homeless women.

    Science.gov (United States)

    Gelberg, Lillian; Browner, C H; Lejano, Elena; Arangua, Lisa

    2004-01-01

    Homelessness is an escalating national problem and women are disproportionately affected. Nevertheless, few studies have focused on the special circumstances associated with being a homeless woman. For instance, while both genders experience serious barriers to obtaining health care, homeless women face an additional burden by virtue of their sexual and reproductive health needs. The current study was conducted as the first stage of a qualitative/quantitative investigation of homeless women's access and barriers to family planning and women's health care. We interviewed 47 homeless women of diverse ages and ethnic backgrounds. A qualitative approach was initially taken to explore the factors homeless women themselves perceive as barriers to their use of birth control and women's health services, and factors they believe would facilitate their use. Key findings are that health is not a priority for homeless women, that transportation and scheduling can be particularly burdensome for homeless women, and that being homeless leads some to feel stigmatized by health care providers. Despite being homeless, having children was extremely important to the women in our study. At the same time, those interested in contraception confronted significant barriers in their efforts to prevent pregnancies. We conclude with suggested interventions that would make general, gynecological, and reproductive health care more accessible to homeless women.

  5. Estimating solar access of typical residential rooftops: A case study in San Jose, CA

    Energy Technology Data Exchange (ETDEWEB)

    Levinson, Ronnen M.; Gupta, Smita; Akbari, Hashem; Pomerantz, Melvin

    2008-03-03

    Shadows cast by trees and buildings can limit the solar access of rooftop solar-energy systems, including photovoltaic panels and thermal collectors. This study characterizes rooftop shading in a residential neighborhood of San Jose, CA, one of four regions analyzed in a wider study of the solar access of California homes.High-resolution orthophotos and LiDAR (Light Detection And Ranging) measurements of surface height were used to create a digital elevation model of all trees and buildings in a 4 km2 residential neighborhood. Hourly shading of roofing planes (the flat elements of roofs) was computed geometrically from the digital elevation model. Parcel boundaries were used to determine the extent to which roofing planes were shaded by trees and buildings in neighboring parcels.In the year in which surface heights were measured (2005), shadows from all sources ("total shading") reduced the insolation received by S-, SW-, and W-facing residential roofing planes in the study area by 13 - 16percent. Shadows cast by trees and buildings in neighboring parcels reduced insolation by no more than 2percent. After 30 years of simulated maximal tree growth, annual total shading increased to 19 - 22percent, and annual extraparcel shading increased to 3 - 4percent.

  6. Internet Access and Use among Students of Physical Education: A Study of Kurukshetra University, Kurukshetra

    Directory of Open Access Journals (Sweden)

    Kumar, Rajender

    2014-06-01

    Full Text Available This paper depicts a study conducted on the behavior of physical education students towards Internet usage at Kurukshetra University, Kurukshetra. Specially, the study aims to know the purposes for use of Internet resources and services, frequency of use, places and means of use, student's satisfaction level toward the Internet, and problems faced while using the Internet. A survey was carried out with a sample of 100 physical education students of Kurukshetra University and the response rate was 88%. A well-designed questionnaire was distributed to the students' sample. Amazingly, the results of the study reveal that usage of the Internet in research and education was not favored, whereas email, chatting, and sports websites were commonly used among students. The study also found that too much information on the Internet, slow access speeds, and finding relevant information were the main problems in using the Internet.

  7. Automatización de un Secador Convectivo de Aire Caliente para fines de Docencia en Ingeniería de Alimentos Automation of a Convective Hot Air Dryer for Teaching in Food Engineering

    Directory of Open Access Journals (Sweden)

    Jorge A Saavedra

    2008-01-01

    Full Text Available El presente trabajo describe el diseño y montaje de un dispositivo experimental para la automatización de un secador de aire caliente con flujo paralelo en co-corriente para realizar estudios de secado. El desarrollo del trabajo se dividió en dos actividades principales: (i diseño del sistema de automatización y (ii la validación de los datos entregados por el equipo. Se obtuvo un dispositivo capaz de registrar las variables del proceso de secado y de la imagen de la muestra deshidratada en tiempo real, como así mismo transmitir dicha información a través de Internet. Los datos procesados por el sistema automático comparados con experiencias manuales tradicionales (no automatizadas se validaron estadísticamente. Se concluye finalmente que la propuesta es viable, fiable y atractiva para el usuario por lo que facilita el proceso de enseñanza-aprendizaje en un área de especial importancia en Ingeniería de Alimentos.This paper describes the design and installation of an automated experimental device applied to a parallel co-current hot air dryer to perform drying studies in the field of food engineering. The development of this work was divided into two main activities: (i design of the automation system and (ii validation of automatically collected data. A device capable of collecting and registering real time data and images from drying processes, and transmitting them through Internet was obtained. The data processed by the automatic device was statistically validated. It is concluded that the proposed automation device is feasible, reliable and attractive for the users, facilitating the teaching-learning process in an important area of Food Engineering.

  8. Open Access Theses in Institutional Repositories: An Exploratory Study of the Perceptions of Doctoral Students

    Science.gov (United States)

    Stanton, Kate Valentine; Liew, Chern Li

    2011-01-01

    Introduction: We examine doctoral students' awareness of and attitudes to open access forms of publication. Levels of awareness of open access and the concept of institutional repositories, publishing behaviour and perceptions of benefits and risks of open access publishing were explored. Method: Qualitative and quantitative data were collected…

  9. Protocol for ACCESS: a qualitative study exploring barriers and facilitators to accessing the emergency contraceptive pill from community pharmacies in Australia

    Science.gov (United States)

    Hussainy, Safeera Yasmeen; Ghosh, Ayesha; Taft, Angela; Mazza, Danielle; Black, Kirsten Isla; Clifford, Rhonda; Mc Namara, Kevin Peter; Ryan, Kath; Jackson, John Keith

    2015-01-01

    Introduction The rate of unplanned pregnancy in Australia remains high, which has contributed to Australia having one of the highest abortion rates of developed countries with an estimated 1 in 5 women having an abortion. The emergency contraceptive pill (ECP) offers a safe way of preventing unintended pregnancy after unprotected sex has occurred. While the ECP has been available over-the-counter in Australian pharmacies for over a decade, its use has not significantly increased. This paper presents a protocol for a qualitative study that aims to identify the barriers and facilitators to accessing the ECP from community pharmacies in Australia. Methods and analysis Data will be collected through one-on-one interviews that are semistructured and in-depth. Partnerships have been established with 2 pharmacy groups and 2 women's health organisations to aid with the recruitment of women and pharmacists for data collection purposes. Interview questions explore domains from the Theoretical Domains Framework in order to assess the factors aiding and/or hindering access to ECP from community pharmacies. Data collected will be analysed using deductive content analysis. The expected benefits of this study are that it will help develop evidence-based workforce interventions to strengthen the capacity and performance of community pharmacists as key ECP providers. Ethics and dissemination The findings will be disseminated to the research team and study partners, who will brainstorm ideas for interventions that would address barriers and facilitators to access identified from the interviews. Dissemination will also occur through presentations and peer-reviewed publications and the study participants will receive an executive summary of the findings. The study has been evaluated and approved by the Monash Human Research Ethics Committee. PMID:26656987

  10. Comprehensive Dataset and Reports of the Mamala Bay Study during 1993-1995 on Oahu, Hawaii (NODC Accession 0000030)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This accession contains comprehensive dataset and reports collected in support of the Mamala Bay Study during 1993-1995. Physical, chemical, biological, and...

  11. Aspire UWA: A case study of widening access in Higher Education

    Directory of Open Access Journals (Sweden)

    Judy Skene

    2016-07-01

    Full Text Available Widening university access to students from low socio-economic status (LSES and non-traditional backgrounds has been a key equity objective for Australian universities, particularly since the 2008 Review into Australian Higher Education (Bradley, Noonan, Nugent & Scales, 2008. Aspire UWA is an equity pathway that aims to inform aspirations and build academic attainment through direct involvement with students who are the “most able least likely” to access the benefits of higher education (Harris, 2010, p. 7. Through forming long-term partnerships with 63 secondary schools across Western Australia (WA, Aspire UWA has grown since 2009 to engage over 10,000 students annually. Its learning framework is designed to deliver age-appropriate activities to inspire and inform students from Years 7-12 to achieve their educational goals. This paper adopts a case study methodology to explore the Aspire UWA approach, the specific operation of Aspire UWA and the efficacy of the program. 

  12. Shamir secret sharing scheme with dynamic access structure (SSSDAS). Case study on nuclear power plant

    Energy Technology Data Exchange (ETDEWEB)

    Thiyagarajan, P.; Thandra, Prasanth Kumar; Rajan, J.; Satyamurthy, S.A.V. [Indira Gandhi Centre for Atomic Research (IGCAR), Kalpakkam (India). Computer Div.; Aghila, G. [National Institute of Technology, Karaikal (India). Dept. of Computer Science and Engineering

    2015-05-15

    In recent years, due to the sophistication offered by the Internet, strategic organizations like nuclear power plants are linked to the outside world communication through the Internet. The entry of outside world communication into strategic organization (nuclear power plant) increases the hacker's attempts to crack its security and to trace any information which is being sent among the top level officials. Information security system in nuclear power plant is very crucial as even small loophole in the security system will lead to a major disaster. Recent cyber attacks in nuclear power plant provoked information security professionals to look deeply into the information security aspects of strategic organizations (nuclear power plant). In these lines, Shamir secret sharing scheme with dynamic access structure (SSSDAS) is proposed in the paper which provides enhanced security by providing dynamic access structure for each node in different hierarchies. The SSSDAS algorithm can be applied to any strategic organizations with hierarchical structures. In this paper the possible scenarios where SSSDAS algorithm can be applied to nuclear power plant is explained as a case study. The proposed SSSDAS scheme identifies the wrong shares, if any, used for reconstruction of the secret. The SSSDAS scheme also address the three major security parameters namely confidentiality, authentication and integrity.

  13. Reglamento de instalaciones de calefacción, climatización y agua caliente sanitaria con el fin de racionalizar su consumo energético, Real Decreto 1618/1980 de 4 de julio

    Directory of Open Access Journals (Sweden)

    Editorial, Equipo

    1981-03-01

    Full Text Available En agosto de este año se han publicado las instrucciones técnicas complementarias del Reglamento de Instalaciones de Calefacción, Climatización y Agua Caliente Sanitaria con el fin de racionalizar su consumo energético. («B.O.E.», 13 agosto, 1981, Orden de 16 de julio de 1981.

  14. Access of energetic particles to Titan's exobase: A study of Cassini's T9 flyby

    Science.gov (United States)

    Regoli, L. H.; Roussos, E.; Feyerabend, M.; Jones, G. H.; Krupp, N.; Coates, A. J.; Simon, S.; Motschmann, U.; Dougherty, M. K.

    2016-10-01

    We study how the local electromagnetic disturbances introduced by Titan affect the ionization rates of the atmosphere. For this, we model the precipitation of energetic particles, specifically hydrogen and oxygen ions with energies between 1 keV and 1 MeV, into Titan's exobase for the specific magnetospheric configuration of the T9 flyby. For the study, a particle tracing software package is used which consists of an integration of the single particle Lorentz force equation using a 4th order Runge-Kutta numerical method. For the electromagnetic disturbances, the output of the A.I.K.E.F. hybrid code (kinetic ions, fluid electrons) is used, allowing the possibility of analyzing the disturbances and asymmetries in the access of energetic particles originated by their large gyroradii. By combining these methods, 2D maps showing the access of each set of particles were produced. We show that the access of different particles is largely dominated by their gyroradii, with the complexity of the maps increasing with decreasing gyroradius, due to the larger effect that local disturbances introduced by the presence of the moon have in the trajectory of the particles with lower energies. We also show that for particles with gyroradii much larger than the moon's radius, simpler descriptions of the electromagnetic environment can reproduce similar results to those obtained when using the full hybrid simulation description, with simple north-south fields being sufficient to reproduce the hybrid code results for O+ ions with energies larger than 10 keV but not enough to reproduce those for H+ ions at any of the energies covered in the present study. Finally, by combining the maps created with upstream plasma flow measurements by the MIMI/CHEMS instrument, we are able to estimate normalized fluxes arriving at different selected positions of the moon's exobase. We then use these fluxes to calculate energy deposition and non-dissociative N2 ionization rates for precipitating O+ and H

  15. Anatomy of open access publishing: a study of longitudinal development and internal structure

    Directory of Open Access Journals (Sweden)

    Laakso Mikael

    2012-10-01

    Full Text Available Abstract Background Open access (OA is a revolutionary way of providing access to the scholarly journal literature made possible by the Internet. The primary aim of this study was to measure the volume of scientific articles published in full immediate OA journals from 2000 to 2011, while observing longitudinal internal shifts in the structure of OA publishing concerning revenue models, publisher types and relative distribution among scientific disciplines. The secondary aim was to measure the share of OA articles of all journal articles, including articles made OA by publishers with a delay and individual author-paid OA articles in subscription journals (hybrid OA, as these subsets of OA publishing have mostly been ignored in previous studies. Methods Stratified random sampling of journals in the Directory of Open Access Journals (n = 787 was performed. The annual publication volumes spanning 2000 to 2011 were retrieved from major publication indexes and through manual data collection. Results An estimated 340,000 articles were published by 6,713 full immediate OA journals during 2011. OA journals requiring article-processing charges have become increasingly common, publishing 166,700 articles in 2011 (49% of all OA articles. This growth is related to the growth of commercial publishers, who, despite only a marginal presence a decade ago, have grown to become key actors on the OA scene, responsible for 120,000 of the articles published in 2011. Publication volume has grown within all major scientific disciplines, however, biomedicine has seen a particularly rapid 16-fold growth between 2000 (7,400 articles and 2011 (120,900 articles. Over the past decade, OA journal publishing has steadily increased its relative share of all scholarly journal articles by about 1% annually. Approximately 17% of the 1.66 million articles published during 2011 and indexed in the most comprehensive article-level index of scholarly articles (Scopus are available OA

  16. A Human Rights Approach for Access to Clean Drinking Water: A Case Study.

    Science.gov (United States)

    Kanaaneh; McKay; Sims

    1995-01-01

    In northern and central Israel are some 70 villages that are not recognized by the state of Israel. At least half of these villages are not connected to the national drinking water networks and lack sufficient quality and quantity of water. Outbreaks of diseases associated with contaminated water supply have occurred, as well as substantial environmental distress. An outbreak of hepatitis A led to the cooperation of a public health physician, a nurse, an environmental engineer, and a human rights lawyer in successfully taking a case to the International Water Tribunal to get access to safe drinking water for these communities. This case study provides a model for cooperation between proponents and practitioners of health and human rights.

  17. INMERSIÓN DE SEMILLAS DE MAÍZ EN AGUA CALIENTE EN LA PRODUCCIÓN DE GERMINADOS PARA FORRAJE

    Directory of Open Access Journals (Sweden)

    Felipe Gonz\\u00E1lez-Rodr\\u00EDguez

    2014-01-01

    Full Text Available El objetivo de este trabajo fue evaluar la tolerancia al deterioro y la viabilidad de semillas de maíz en inmersión en agua caliente. Se evaluaron tres cultivares de maíz: País Tuxpeño (PT, X ́nuuknal (X y Sinaloa (S que se sometieron a 0, 2, 4, 6 y 8 segundos de inmersión en agua a 100°C, en la producción de germinados para forraje. El estudio se realizó en Conkal, Yucatán, México en junio de 2011. Las variables evaluadas en semillas fueron: peso inicial (PIS, porcentaje de germinación (PG, número medio de días a germinación (NMDG e índice de velocidad (IVG; en plántulas: peso fresco (PF, seco (PS y la rela - ción producción de biomasa por unidad de peso de semilla (PF:PIS. Los resultados mostraron diferencias significativas (P≤0,05 en todas las variables, excepto en NMDG. El PG fue de 96, 74 y 55% para PT, X y S, respectivamente. La inmersión por 2 s incrementó el PG, IVG, PF, PS y PF:PIS en X y S pero con inmersión por 4 y 6 s estas variables disminuyeron. Por el contrario, el PT inmerso por 2 s disminuyó el PG al 75%, pero con inmersión por 4 y 6 s todas las variables mostraron valores ascendentes. El tiempo de inmersión por 8 s afectó severamente a los tres cultivares, siendo PT el menos afectado ya que el PF solamente disminuyó el 35%, mientras que para X y S el decremento fue de 61% y 42% respectivamente. En conclusión, PT presentó mayor tolerancia al deterioro por in - mersión en agua caliente y por tanto, es el más recomendado para la producción de germinados para forraje verde.

  18. Modelación de fenómenos metalúrgicos en laminación en caliente de acero

    Directory of Open Access Journals (Sweden)

    Zambrano, P.

    2008-02-01

    Full Text Available Modelling of hot rolling of steel strip involves metallurgical phenomena such as restoration of deformed structures, transformation to ferrite and growth of the oxide layer on top of the steel strip. The effect of composition is taken into account when restoration and phase transformation is considered, whereas it is assumed that the chemical composition of the steel substrate does not affect the oxide crust, being common place to consider the oxide just as a thermal barrier and to assume sticking conditions within the roll-gap. Observations indicate that elements such as silicon and manganese, more susceptible to oxidize than iron, affect the growth kinetics, adhesion and the behaviour during deformation of the oxide layer. This work deals with the way used to model various superficial and metallurgical phenomena, and how this knowledge is used to simulate hot rolling of steel strip.

    La modelación del proceso de laminación en caliente de acero incorpora fenómenos metalúrgicos como son la restauración de la estructura deformada, la trasformación de fase y el crecimiento de la capa de óxido sobre la superficie del acero. Se reconoce el efecto de la composición química sobre la transformación de fase y la restauración, sin embargo se considera que el crecimiento del óxido no es afectado por la presencia de elementos aleantes en el acero y es común que se maneje a la costra de óxido como una barrera térmica y que se supongan condiciones de fricción adhesivas en el entrehierro. Determinadas observaciones indican que elementos como el silicio y el manganeso, más susceptibles a oxidarse que el hierro, afectan la cinética de crecimiento, la adhesión y el comportamiento de la costra al ser deformada. En este trabajo se presenta la forma en que diversos fenómenos metalúrgicos y de superficie se modelan y se utilizan para simular el proceso de laminación en caliente.

  19. Interfaces to PeptideAtlas: a case study of standard data access systems.

    Science.gov (United States)

    Killcoyne, Sarah; Handcock, Jeremy; Robinson, Thomas; Deutsch, Eric W; Boyle, John

    2012-09-01

    Access to public data sets is important to the scientific community as a resource to develop new experiments or validate new data. Projects such as the PeptideAtlas, Ensembl and The Cancer Genome Atlas (TCGA) offer both access to public data and a repository to share their own data. Access to these data sets is often provided through a web page form and a web service API. Access technologies based on web protocols (e.g. http) have been in use for over a decade and are widely adopted across the industry for a variety of functions (e.g. search, commercial transactions, and social media). Each architecture adapts these technologies to provide users with tools to access and share data. Both commonly used web service technologies (e.g. REST and SOAP), and custom-built solutions over HTTP are utilized in providing access to research data. Providing multiple access points ensures that the community can access the data in the simplest and most effective manner for their particular needs. This article examines three common access mechanisms for web accessible data: BioMart, caBIG, and Google Data Sources. These are illustrated by implementing each over the PeptideAtlas repository and reviewed for their suitability based on specific usages common to research. BioMart, Google Data Sources, and caBIG are each suitable for certain uses. The tradeoffs made in the development of the technology are dependent on the uses each was designed for (e.g. security versus speed). This means that an understanding of specific requirements and tradeoffs is necessary before selecting the access technology.

  20. Providing Internet Access to the Ohio Career Information System for All Residents: A Feasibility Study.

    Science.gov (United States)

    Lewis, Morgan V.

    Expanded Internet access to the Ohio Career Information System (OCIS) would provide adults in Ohio who need to or wish to make career changes with the best available information about occupations, education and training programs, and financial aid. In order to determine the feasibility of improving access without cost to users, an advisory group,…

  1. Corporate Social Responsibility (CSR for Global Market Access: A Malaysian Case Study on Small and Medium Enterprises (SMEs

    Directory of Open Access Journals (Sweden)

    Tareq Bin Hossain

    2013-01-01

    Full Text Available The Corporate Social Responsibility (CSR is a powerful tool or channel for ensuring greater market access and enables a better engagement in the global market. The study examines how Corporate Social Responsibility (CSR is contributing to mass access of Small and Medium Enterprises (SMEs in the global market. The study used cross section primary data from the level of executives of the corporations. Towards the achievement of its objectives this study uses descriptive statistical tools. The findings of the study revealed that practicing of CSR is playing pivotal role to pick up the brand image and reputation of the Malaysian SMEs to the customers in the global arena.

  2. The Study of Access Control for Service-Oriented Computing in Internet of Things

    Directory of Open Access Journals (Sweden)

    Guoping Zhang

    2012-06-01

    Full Text Available In Internet of Things, computing and processing of information is the core supporting. In this paper, we introduce “Service-Oriented Computing” to solve the computing and processing of information in IoT. However, a key challenge in service-oriented environment is the design of effective access control schemas.We put forward a model of Workflow -oriented Attributed Based Access Control (WABAC, and an access control framework based on WABAC model. WABAC model grants and adapts permissions to subjects according to subject atttribute, resource attribute, environment attribute and current task, meeting access control request of SOC. Using the approach presented can effectively enhance the access control security for SOC applications, and prevent the abuse of subject permissions.

  3. Implementing e-resource access for alumni at King's College London: a case study

    Directory of Open Access Journals (Sweden)

    Anna França

    2014-11-01

    Full Text Available University libraries are increasingly considering ways to develop the library services offered to their alumni in response to growing demand. In particular, there has been a rising interest in how university libraries can extend access to e-resources to include provision of access for alumni, raising a number of challenging questions around the licensing of e-resources for alumni as well as access and funding considerations. This article describes the work carried out at King's College London to investigate extending e-resource access to alumni and the experience of implementing access to JSTOR in 2012. The article then examines some of the barriers that King's have faced in building on this work.

  4. Usage Trends of Open Access and Local Journals: A Korean Case Study.

    Science.gov (United States)

    Seo, Jeong-Wook; Chung, Hosik; Yun, Jungmin; Park, Jin Young; Park, Eunsun; Ahn, Yuri

    2016-01-01

    Articles from open access and local journals are important resources for research in Korea and the usage trends of these articles are important indicators for the assessment of the current research practice. We analyzed an institutional collection of published papers from 1998 to 2014 authored by researchers from Seoul National University, and their references from papers published between 1998 and 2011. The published papers were collected from Web of Science or Scopus and were analyzed according to the proportion of articles from open access journals. Their cited references from published papers in Web of Science were analyzed according to the proportion of local (South Korean) or open access journals. The proportion of open access papers was relatively stable until 2006 (2.5 ~ 5.2% in Web of Science and 2.7 ~ 4.2% in Scopus), but then increased to 15.9% (Web of Science) or 18.5% (Scopus) in 2014. We analyzed 2,750,485 cited references from 52,295 published papers. We found that the overall proportion of cited articles from local journals was 1.8% and that for open access journals was 3.0%. Citations of open access articles have increased since 2006 to 4.1% in 2011, although the increase in open access article citations was less than for open access publications. The proportion of citations from local journals was even lower. We think that the publishing / citing mismatch is a term to describe this difference, which is an issue at Seoul National University, where the number of published papers at open access or local journals is increasing but the number of citations is not. The cause of this discrepancy is multi-factorial but the governmental / institutional policies, social / cultural issues and authors' citing behaviors will explain the mismatch. However, additional measures are also necessary, such as the development of an institutional citation database and improved search capabilities with respect to local and open access documents.

  5. Usage Trends of Open Access and Local Journals: A Korean Case Study.

    Directory of Open Access Journals (Sweden)

    Jeong-Wook Seo

    Full Text Available Articles from open access and local journals are important resources for research in Korea and the usage trends of these articles are important indicators for the assessment of the current research practice. We analyzed an institutional collection of published papers from 1998 to 2014 authored by researchers from Seoul National University, and their references from papers published between 1998 and 2011. The published papers were collected from Web of Science or Scopus and were analyzed according to the proportion of articles from open access journals. Their cited references from published papers in Web of Science were analyzed according to the proportion of local (South Korean or open access journals. The proportion of open access papers was relatively stable until 2006 (2.5 ~ 5.2% in Web of Science and 2.7 ~ 4.2% in Scopus, but then increased to 15.9% (Web of Science or 18.5% (Scopus in 2014. We analyzed 2,750,485 cited references from 52,295 published papers. We found that the overall proportion of cited articles from local journals was 1.8% and that for open access journals was 3.0%. Citations of open access articles have increased since 2006 to 4.1% in 2011, although the increase in open access article citations was less than for open access publications. The proportion of citations from local journals was even lower. We think that the publishing / citing mismatch is a term to describe this difference, which is an issue at Seoul National University, where the number of published papers at open access or local journals is increasing but the number of citations is not. The cause of this discrepancy is multi-factorial but the governmental / institutional policies, social / cultural issues and authors' citing behaviors will explain the mismatch. However, additional measures are also necessary, such as the development of an institutional citation database and improved search capabilities with respect to local and open access documents.

  6. La recristalización dinámica durante la deformación en caliente de un acero calidad armco

    Directory of Open Access Journals (Sweden)

    Tafzi, K.

    2001-04-01

    Full Text Available The onset and kinetics of dynamic recrystallization of an ARMCO steel is characterised in this wok. For this purpose, uniaxial hot compression tests were carried out. The Avrami equation was employed to describe the kinetics of recrystallization. Moreover the critical strain determining the onset for dynamic recrystallization was analysed. It was observed that the latter characteristic parameters were strain rate and temperature dependent. A comparison with published results and a derivation of the possible effect of chemical composition is also offered.

    En este trabajo se caracteriza la recristalización dinámica de un acero calidad ARMCO, desde el punto de vista de su inicio y su cinética. Para este fin, se realizaron ensayos de compresión uniaxial en caliente. Se determinaron, tanto los parámetros de la ecuación de Avrami, que caracterizan la cinética de recristalización, como los que describen la denominada deformación de pico que marca el inicio de la recristalización. Se observó que estos parámetros dependían de las condiciones de deformación. Finalmente, se ofrece una comparación de los resultados obtenidos con otros resultados encontrados para diversos materiales.

  7. La espectroscopía de impedancia electroquímica (EIS aplicada al estudio del mecanismo de la corrosión en caliente por sales fundidas

    Directory of Open Access Journals (Sweden)

    Sandro Báez P.

    2004-01-01

    Full Text Available Las técnicas electroquímicas son empleadas para evaluar las reacciones de corrosión en sistemas acuosos, simulando condiciones reales. En la actualidad no existe un monitoreo en tiempo real del desgaste corrosivo por sales fundidas en los componentes de las calderas; por lo que se hace necesario investigar la utilización de la técnica de EIS para evaluar la corrosión por sales fundidas. Para el desarrollo de este trabajo se construyó una celda de ensayos electroquímicos para corrosión en caliente y se evaluó la velocidad de corrosión de los aceros AISI-304H y T22 en un electrolito 80%V2O5-20%Na2SO4 entre 550°C y 800°C, y con la adición de inhibidores de corrosión como el MgO y el CaO, por medio de las técnicas Extrapolación de Tafel y EIS. Los resultados mostraron que los aceros, por debajo de 750°C, presentan control por difusión en la película de óxido y sobre 750°C, control por difusión en el fundido.

  8. A late Holocene paleoenvironmental reconstruction from Agua Caliente, southern Belize, linked to regional climate variability and cultural change at the Maya polity of Uxbenká

    Science.gov (United States)

    Walsh, Megan K.; Prufer, Keith M.; Culleton, Brendan J.; Kennett, Douglas J.

    2014-07-01

    We report high-resolution macroscopic charcoal, pollen and sedimentological data for Agua Caliente, a freshwater lagoon located in southern Belize, and infer a late Holocene record of human land-use/climate interactions for the nearby prehistoric Maya center of Uxbenká. Land-use activities spanning the initial clearance of forests for agriculture through the drought-linked Maya collapse and continuing into the historic recolonization of the region are all reflected in the record. Human land alteration in association with swidden agriculture is evident early in the record during the Middle Preclassic starting ca. 2600 cal yr BP. Fire slowly tapered off during the Late and Terminal Classic, consistent with the gradual political demise and depopulation of the Uxbenká polity sometime between ca. 1150 and 950 cal yr BP, during a period of multiple droughts evident in a nearby speleothem record. Fire activity was at its lowest during the Maya Postclassic ca. 950-430 cal yr BP, but rose consistent with increasing recolonization of the region between ca. 430 cal yr BP and present. These data suggest that this environmental record provides both a proxy for 2800 years of cultural change, including colonization, growth, decline, and reorganization of regional populations, and an independent confirmation of recent paleoclimate reconstructions from the same region.

  9. Characterization of a hot dry rock reservoir at Acoculco geothermal zone, Pue.; Caracterizacion de un yacimiento de roca seca caliente en la zona geotermica de Acoculco, Pue.

    Energy Technology Data Exchange (ETDEWEB)

    Lorenzo Pulido, Cecilia; Flores Armenta, Magaly Ramirez Silva, German [Comision Federal de Electricidad, Gerencia de Proyectos Geotermoelectricos, Morelia, Michoacan (Mexico)]. E-mail: cecilia-lorenzo@cfe.gob.mx

    2011-01-15

    metamorphism due to the emplacement of intrusive rocks (hornblende granite), which was identified in the lithologic column from both wells. Based on all these features, the Acoculco geothermal zone is a candidate for development under an EGS scheme. [Spanish] Los recursos geotermicos de roca seca caliente (HDR: Hot Dry Rock), tambien conocidos actualmente como sistemas geotermicos mejorados (EGS: Enhanced Geothermal Systems), han sido investigados de tiempo atras. El concepto de HDR es muy simple. Los yacimientos mas comunes se encuentran a unos 5000 m de profundidad y estan formados por rocas impermeables que tienen una temperatura entre 150 grados centigrados y 300 grados centigrados , y no contienen ningun tipo de fluido. La temperatura es un criterio economico principal, ya que para la generacion de energia electrica se requiere una temperatura inicial mayor a los 200 grados centigrados. Para desarrollar el sistema se hacen dos perforaciones, en una de las cuales se introduce agua fria y en la otra se obtiene agua caliente. En Francia, desde junio de 2008 se encuentra en operacion una planta de 1.5 MW como parte del proyecto Soultz-sous-Forest financiado por el European Deep Geothermal Energy Programme. A fin de caracterizar los yacimientos HDR se llevo a cabo una recopilacion de informacion multidisciplinaria referente a: (1) origen de la fuente de calor, (2) informacion cuantitativa de temperatura y mecanismos de transferencia de calor natural, (3) fallas y fracturas naturales, (4) esfuerzos locales, y (5) tipo de basamento. Esta informacion se aplico a la zona geotermica de Acoculco, Pue., explorada por el Departamento de Exploracion mediante los pozos EAC-1 y EAC-2 para determinar la presencia de un yacimiento de alta temperatura (de 220 grados centigrados a mas 250 grados centigrados). Esta zona presenta las siguientes caracteristicas: (1) Origen de la fuente de calor: volcano-tectonico; (2) Los registros de temperatura mostraron valores de 263.8 grados centigrados y

  10. Quality Assessment of Studies Published in Open Access and Subscription Journals: Results of a Systematic Evaluation.

    Directory of Open Access Journals (Sweden)

    Roberta Pastorino

    Full Text Available Along with the proliferation of Open Access (OA publishing, the interest for comparing the scientific quality of studies published in OA journals versus subscription journals has also increased. With our study we aimed to compare the methodological quality and the quality of reporting of primary epidemiological studies and systematic reviews and meta-analyses published in OA and non-OA journals.In order to identify the studies to appraise, we listed all OA and non-OA journals which published in 2013 at least one primary epidemiologic study (case-control or cohort study design, and at least one systematic review or meta-analysis in the field of oncology. For the appraisal, we picked up the first studies published in 2013 with case-control or cohort study design from OA journals (Group A; n = 12, and in the same time period from non-OA journals (Group B; n = 26; the first systematic reviews and meta-analyses published in 2013 from OA journals (Group C; n = 15, and in the same time period from non-OA journals (Group D; n = 32. We evaluated the methodological quality of studies by assessing the compliance of case-control and cohort studies to Newcastle and Ottawa Scale (NOS scale, and the compliance of systematic reviews and meta-analyses to Assessment of Multiple Systematic Reviews (AMSTAR scale. The quality of reporting was assessed considering the adherence of case-control and cohort studies to STrengthening the Reporting of OBservational studies in Epidemiology (STROBE checklist, and the adherence of systematic reviews and meta-analyses to Preferred Reporting Items for Systematic reviews and Meta-Analysis (PRISMA checklist.Among case-control and cohort studies published in OA and non-OA journals, we did not observe significant differences in the median value of NOS score (Group A: 7 (IQR 7-8 versus Group B: 8 (7-9; p = 0.5 and in the adherence to STROBE checklist (Group A, 75% versus Group B, 80%; p = 0.1. The results did not change after

  11. Access to primary care and visits to emergency departments in England: a cross-sectional, population-based study.

    Directory of Open Access Journals (Sweden)

    Thomas E Cowling

    Full Text Available BACKGROUND: The number of visits to hospital emergency departments (EDs in England has increased by 20% since 2007-08, placing unsustainable pressure on the National Health Service (NHS. Some patients attend EDs because they are unable to access primary care services. This study examined the association between access to primary care and ED visits in England. METHODS: A cross-sectional, population-based analysis of patients registered with 7,856 general practices in England was conducted, for the time period April 2010 to March 2011. The outcome measure was the number of self-referred discharged ED visits by the registered population of a general practice. The predictor variables were measures of patient-reported access to general practice services; these were entered into a negative binomial regression model with variables to control for the characteristics of patient populations, supply of general practitioners and travel times to health services. MAIN RESULT AND CONCLUSION: General practices providing more timely access to primary care had fewer self-referred discharged ED visits per registered patient (for the most accessible quintile of practices, RR = 0.898; P<0.001. Policy makers should consider improving timely access to primary care when developing plans to reduce ED utilisation.

  12. Access to Primary Care and Visits to Emergency Departments in England: A Cross-Sectional, Population-Based Study

    Science.gov (United States)

    Cowling, Thomas E.; Cecil, Elizabeth V.; Soljak, Michael A.; Lee, John Tayu; Millett, Christopher; Majeed, Azeem; Wachter, Robert M.; Harris, Matthew J.

    2013-01-01

    Background The number of visits to hospital emergency departments (EDs) in England has increased by 20% since 2007-08, placing unsustainable pressure on the National Health Service (NHS). Some patients attend EDs because they are unable to access primary care services. This study examined the association between access to primary care and ED visits in England. Methods A cross-sectional, population-based analysis of patients registered with 7,856 general practices in England was conducted, for the time period April 2010 to March 2011. The outcome measure was the number of self-referred discharged ED visits by the registered population of a general practice. The predictor variables were measures of patient-reported access to general practice services; these were entered into a negative binomial regression model with variables to control for the characteristics of patient populations, supply of general practitioners and travel times to health services. Main Result and Conclusion General practices providing more timely access to primary care had fewer self-referred discharged ED visits per registered patient (for the most accessible quintile of practices, RR = 0.898; P<0.001). Policy makers should consider improving timely access to primary care when developing plans to reduce ED utilisation. PMID:23776694

  13. Effects of limited access dressing in chronic wounds: A biochemical and histological study

    Directory of Open Access Journals (Sweden)

    Thittamaranahalli Muguregowda Honnegowda

    2015-01-01

    Full Text Available Background: Negative pressure wound therapy has emerged as an attractive treatment modality for the management and healing of chronic ulcers. Though numerous clinical studies are available, there is a lack of biochemical and histological studies evaluating the healing of chronic wounds. Materials and Methods: In the present study, a total 60 patients were divided into two groups: Limited access dressing (LAD group (n = 30 and conventional dressing group (n = 30. Various biochemical parameters such as hydroxyproline, total protein and antioxidants such as reduced glutathione (GSH, glutathione peroxidase (GPx, catalase (CAT and oxidative biomarker malondialdhyde (MDA are measured in the granulation tissue. Histologically amount of inflammatory infiltrate, angiogenesis, and collagen deposition are studied to assess wound healing. Results: Patients treated with LAD have shown significant increase in the mean (±standard deviation hydroxyproline (77.3 ± 30.1 vs. 32.3 ± 16.18; P = 0.026, total protein (13.89 ± 9.0 vs. 8.9 ± 4.59; P = 0.004, GSH (7.4 ± 1.91 vs. 5.1 ± 1.28; P = 0.039, GPx (122.3 ± 59.3 vs. 88.7 ± 34.11; P = 0.030, CAT (1.80 ± 1.14 vs. 0.9 ± 0.71; P = 0.002 and decrease in MDA (13.4 ± 5.5 vs. 8.6 ± 3.8; P = 0.004. Histological study showed comparatively fewer inflammatory cells, increased and well organised collagen bundles, and more angiogenesis in the LAD group when compared with that with conventional dressing after 10 days of treatment. Conclusion: In the present study, we have found beneficial effect of newer intermittent negative pressure therapy in combination with moist environment (LAD on chronic wound healing by increasing collagen deposition and angiogenesis; and reducing oxidative stress and inflammatory infiltrate.

  14. Challenges Women with Disability Face in Accessing and Using Maternal Healthcare Services in Ghana: A Qualitative Study.

    Directory of Open Access Journals (Sweden)

    John Kuumuori Ganle

    Full Text Available While a number of studies have examined the factors affecting accessibility to and utilisation of healthcare services by persons with disability in general, there is little evidence about disabled women's access to maternal health services in low-income countries and few studies consult disabled women themselves to understand their experience of care and the challenges they face in accessing skilled maternal health services. The objective of this paper is to explore the challenges women with disabilities encounter in accessing and using institutional maternal healthcare services in Ghana.A qualitative study was conducted in 27 rural and urban communities in the Bosomtwe and Central Gonja districts of Ghana with a total of 72 purposively sampled women with different physical, visual, and hearing impairments who were either lactating or pregnant at the time of this research. Semi-structured in-depth interviews were used to gather data. Attride-Stirling's thematic network framework was used to analyse the data. Findings suggest that although women with disability do want to receive institutional maternal healthcare, their disability often made it difficult for such women to travel to access skilled care, as well as gain access to unfriendly physical health infrastructure. Other related access challenges include: healthcare providers' insensitivity and lack of knowledge about the maternity care needs of women with disability, negative attitudes of service providers, the perception from able-bodied persons that women with disability should be asexual, and health information that lacks specificity in terms of addressing the special maternity care needs of women with disability.Maternal healthcare services that are designed to address the needs of able-bodied women might lack the flexibility and responsiveness to meet the special maternity care needs of women with disability. More disability-related cultural competence and patient-centred training for

  15. Bedouin-Arab women's access to antenatal care at the interface of physical and structural barriers: A pilot study.

    Science.gov (United States)

    Gottlieb, Nora; Belmaker, Ilana; Bilenko, Natalya; Davidovitch, Nadav

    2011-01-01

    Since 2000, the Israeli Public Health Services have established eight Maternal-and-Child-Health (MCH) stations in unrecognised Bedouin-Arab villages in South Israel in order to reduce barriers to healthcare. The goals of this pilot study were: (1) to explore the new MCH stations' impact on antenatal care (ANC) accessibility; and (2) to compare access to ANC between women from villages with MCH stations and women from villages without MCH stations. The study combined quantitative and qualitative methods including structured interviews with 174 MCH service users, review of 158 ANC records and 16 in-depth interviews with Bedouin-Arab women. The establishment of MCH stations in unrecognised villages has improved physical access to ANC and secondarily diminished other barriers related to financial and sociocultural dimensions of women's access to healthcare, thus enhancing women's options for independent healthcare-seeking; yet, limited opening hours, staff shortages and communication problems hamper ANC delivery at the new MCH stations. This pilot study indicates that the MCH stations' establishment in unrecognised villages was a successful intervention, which improved women's access to ANC. Even though current service delivery challenges need to be overcome to achieve the intervention's full potential, its replication should be considered in further villages.

  16. Open Access and its impact on the Knowledge Society: Latin American Case Studies Insights

    Directory of Open Access Journals (Sweden)

    María Soledad RAMÍREZ MONTOYA

    2015-04-01

    Full Text Available In a changing society, open access may represent an alternative growth and resources to the educational community, from the opportunities given to students, to teachers, researchers and administrators of educational institutions. The aim of this paper is to analyze the opportunities and challenges that gives open access to the educational community, through the presentation of a conceptual vision and practical cases in Latin America, on the issue of open educational resources, repositories, journals and open access policies –from universities and government agencies or financing– and its link to a knowledge society. The findings are presented on three key elements: opportunities, challenges and opportunities open to access the knowledge society.

  17. Patients' and carers' experiences of gaining access to acute stroke care: A qualitative study

    OpenAIRE

    Harrison, M; Ryan, T.; Gardiner, C.; Jones, A

    2012-01-01

    Background: Rapid access to acute stroke care is essential to improve stroke patient outcomes. Policy recommendations for the emergency management of stroke have resulted in signi ficant changes to stroke services, including the introduction of hyper-acute care. Objective: To explore patients' and carers' experiences of gaining access to acute stroke care and identify the factors that enabled or prevented stroke from being treated as a medical emergency. Methods: Qualitative semi-structured i...

  18. Grain protein concentration and harvestable protein under future climate conditions. A study of 108 spring barley accessions

    DEFF Research Database (Denmark)

    Ingvordsen, Cathrine Heinz; Gislum, René; Jørgensen, Johannes Ravn;

    2016-01-01

    In the present study a set of 108 spring barley (H. vulgare L.) accessions were cultivated under predicted future levels of temperature and [CO2] as single factors and in combination (IPCC, AR5, RCP8.5). Across all genotypes, elevated [CO2] (700 ppm day/night) slightly decreased protein concentra......In the present study a set of 108 spring barley (H. vulgare L.) accessions were cultivated under predicted future levels of temperature and [CO2] as single factors and in combination (IPCC, AR5, RCP8.5). Across all genotypes, elevated [CO2] (700 ppm day/night) slightly decreased protein...

  19. The effects of open access on un-published documents: A case study of economics working papers

    DEFF Research Database (Denmark)

    Faber Frandsen, Tove

    2009-01-01

    unrefereed publications to a much wider audience. This is particularly interesting seen in relation to the highly disputed open access advantage as the potential advantage for lowvisibility publications has not been given much attention in the literature. The present study examines the role ofworking papers....... There is no tendency to an increase in impact during the 10 years which is the case for the high impact journals. Consequently, the result of this study does not provide evidence of an open access advantage for working papers in economics....

  20. Access to medicines in Latin America and the Caribbean (LAC): a scoping study

    Science.gov (United States)

    Emmerick, Isabel Cristina Martins; Oliveira, Maria Auxiliadora; Luiza, Vera Lucia; Azeredo, Thiago Botelho; Bigdeli, Maryam

    2013-01-01

    Objective To assess scientific publication and map research gaps on access to medicines (ATM) in Latin American and the Caribbean low-income and middle-income countries (LMIC). Design Scoping review. Two independent reviewers assessed studies for inclusion and extracted data from each study. Information sources Search strategies were developed and the following databases were searched: MEDLINE, ISI, SCOPUS and Lilacs, from 2000 to 2010. Eligibility criteria Research articles and reviews published in English, Spanish and Portuguese were included. Studies including only high-income countries were excluded, as well as those carried out in very limited settings and discussion papers. Results The 77 articles retained were categorised through consensus among the research team according to the level of the health system addressed, ATM domain and research issues covered. Publications on ATM have increased over time during the study period (r 0.93, p=0.00; R2 0.85). The top five countries covered were Brazil (68.8%), Mexico (15.6%), Colombia (11.7%), Argentina (10.4%) and Peru (10.4%). ‘Health services delivery’ and ‘patients, household and communities’ were the health system levels most frequently covered. The ATM domains ‘leadership and governance’, ‘sustainable financing, affordability and price of medicines’, ‘medicines selection and use’ and ‘availability of medicines’ were the top four explored. There are research gaps in important areas such as ‘human resources for health’, ‘global policies and human rights’, ‘production of medicines’ and ‘traditional medicine’. Conclusions The upward trend on scientific publication reflects a growing research capacity in the region, which is concentrated on research teams in selected countries. The gaps on research capacity could be overcome through research collaboration among countries. It is important to strengthen these collaborations, assuring that interests and needs from the LMIC are

  1. Big Data access and infrastructure for modern biology: case studies in data repository utility.

    Science.gov (United States)

    Boles, Nathan C; Stone, Tyler; Bergeron, Charles; Kiehl, Thomas R

    2017-01-01

    Big Data is no longer solely the purview of big organizations with big resources. Today's routine tools and experimental methods can generate large slices of data. For example, high-throughput sequencing can quickly interrogate biological systems for the expression levels of thousands of different RNAs, examine epigenetic marks throughout the genome, and detect differences in the genomes of individuals. Multichannel electrophysiology platforms produce gigabytes of data in just a few minutes of recording. Imaging systems generate videos capturing biological behaviors over the course of days. Thus, any researcher now has access to a veritable wealth of data. However, the ability of any given researcher to utilize that data is limited by her/his own resources and skills for downloading, storing, and analyzing the data. In this paper, we examine the necessary resources required to engage Big Data, survey the state of modern data analysis pipelines, present a few data repository case studies, and touch on current institutions and programs supporting the work that relies on Big Data.

  2. Assessing mouse alternatives to access to computer: a case study of a user with cerebral palsy.

    Science.gov (United States)

    Pousada, Thais; Pareira, Javier; Groba, Betania; Nieto, Laura; Pazos, Alejandro

    2014-01-01

    The purpose of this study is to describe the process of assessment of three assistive devices to meet the needs of a woman with cerebral palsy (CP) in order to provide her with computer access and use. The user has quadriplegic CP, with anarthria, using a syllabic keyboard. Devices were evaluated through a three-step approach: (a) use of a questionnaire to preselect potential assistive technologies, (b) use of an eTAO tool to determine the effectiveness of each devised, and (c) a conducting semi-structured interview to obtain qualitative data. Touch screen, joystick, and trackball were the preselected devices. The best device that met the user's needs and priorities was joystick. The finding was corroborated by both the eTAO tool and the semi-structured interview. Computers are a basic form of social participation. It is important to consider the special needs and priorities of users and to try different devices when undertaking a device-selection process. Environmental and personal factors have to be considered, as well. This leads to a need to evaluate new tools in order to provide the appropriate support. The eTAO could be a suitable instrument for this purpose. Additional research is also needed to understand how to better match devices with different user populations and how to comprehensively evaluate emerging technologies relative to users with disabilities.

  3. Study of HTML Meta-Tags Utilization in Web-based Open-Access Journals

    Directory of Open Access Journals (Sweden)

    Pegah Pishva

    2007-04-01

    Full Text Available The present study investigates the extent of utilization of two meta tags – “keywords” and “descriptors” – in Web-based Open-Access Journals. A sample composed of 707 journals taken from DOAJ was used. These were analyzed on the account of utilization of the said meta tags. Findings demonstrated that these journals utilized “keywords” and “descriptors” meta-tags, 33.1% and 29.9% respectively. It was further demonstrated that among various subject classifications, “General Journals” had been the highest while “Mathematics and Statistics Journals” had the least utilization as “keywords” meta-tags. Moreover, “General Journals” and “Chemistry journals”, with 55.6% and 15.4% utilization respectively, had the highest and the lowest “descriptors” meta-tag usage rate. Based on our findings, and when compared against other similar research findings, there had been no significant growth experienced in utilization of these meta tags.

  4. Safety zone for surgical access in the middle third of the clavicle: study on cadavers☆

    Science.gov (United States)

    Ribeiro, Fabiano Rebouças; de Marchi Bosi Porto, Fernanda; Silva, Marcio Vieira Sanches; Tenor Junior, Antonio Carlos; da Costa, Miguel Pereira; Filardi, Cantidio

    2015-01-01

    Objective The aim of this study was to establish a neurovascular safety zone for surgical access in the middle third of the clavicle, by means of dissection on cadavers. Methods Twenty shoulders were dissected in 10 cadavers, with deep dissection of the middle third of the clavicle. The following structures were identified: subclavian vein, upper trunk of the brachial plexus (anterior and posterior divisions) and suprascapular nerve. These structures were marked out in order to measure their distances from the most proximal point of the middle third of the clavicle. Results The mean distances from the middle third of the clavicle to the suprascapular nerve, subclavian vein, upper trunk, anterior division of the upper trunk and posterior division of the upper trunk were respectively, for the right side: 15.92 cm, 10.77 cm, 23.68 cm, 14.60 cm and 15.42 cm; and for the left side: 12.69 cm; 9.82 cm; 22.19 cm; 12.16 cm and 13.46 cm. Conclusion There was a statistical difference in the distances to the suprascapular nerve and anterior division of the upper trunk, in comparing between the right and left sides. The closest neurovascular structures to the middle third of the clavicle were the suprascapular nerve and subclavian vein. PMID:26229929

  5. RETROSPECTIVE STUDY OF MICROORGANISMS ASSOCIATED WITH VASCULAR ACCESS INFECTIONS IN HEMODIALYSIS PATIENTS

    Science.gov (United States)

    D’Amato-Palumbo, S; Kaplan, AA; Feinn, RS; Lalla, RV

    2013-01-01

    Objective To assess microorganisms associated with vascular access-associated infections (VAIs) in hemodialysis patients, with respect to possible origin from the mouth. Study Design A retrospective and comparative analysis of the microbes associated with VAI in hemodialysis patients treated during a 10-year period was performed using the Human Oral Microbiome Database (HOMD). Results Of 218 patient records identified, 65 patients collectively experienced 115 VAI episodes. The most common microorganisms involved were Staphylococcus aureus (49.6% of infections), Staphylococcus epidermidis (10.4%), Serratia marcescens (10.4%), Pseudomonas aeruginosa (9.6%), and Enterococcus faecalis / fecum (8.7%). None of these was found in 1% or more of HOMD clone libraries, indicating that they very rarely colonize the teeth or plaque. Conclusions Most VAIs were associated with microorganisms more likely to originate from other body sites than from the oral cavity. The risk of a VAI being caused by microorganisms originating from the oral cavity is very small. PMID:23217535

  6. Improved access to life insurance after genetic diagnosis of familial hypercholesterolaemia: cross-sectional postal questionnaire study.

    Science.gov (United States)

    Huijgen, Roeland; Homsma, Sietske J M; Hutten, Barbara A; Kindt, Iris; Vissers, Maud N; Kastelein, John J P; van Rijckevorsel, Jan L A

    2012-07-01

    A decade ago, in the initial stage of genetic testing for familial hypercholesterolaemia (FH) in The Netherlands, it was reported that such screening decreased access to affordable life insurance for mutation carriers. In 2003, in order to improve access to insurance for FH mutation carriers, insurers agreed to underwrite according to a set of guidelines. In this cross-sectional study, we assessed whether access to insurance has improved since the advent of these guidelines. We approached 2825 subjects that had participated in the genetic testing for FH between 1998 and 2003. We compared unconditional acceptance rates before and after FH diagnosis and before and after the guidelines were issued by means of logistic regression analysis. Our study outcome pertains to 414 FH patients who applied for life insurance. Unconditional acceptance of a policy before DNA diagnosis and before the issue of guidelines occurred in 182 out of 255 (71%) cases, versus 27 out of 35 (77%) cases after DNA diagnosis, but before the issue of guidelines. De facto, 107 out of 124 (86%) patients received unconditional acceptance after DNA diagnosis and after the issue of guidelines (P for trend=0.002). Access to life insurance improved for FH patients after molecular diagnosis and it improved even further after the guidelines were issued. Therefore, we argue that limited access to life insurance on the basis of 'DNA discrimination' is no longer a valid argument against genetic cascade testing for FH, at least not in our country.

  7. Latin American immigrants have limited access to health insurance in Japan: a cross sectional study

    Directory of Open Access Journals (Sweden)

    Suguimoto S Pilar

    2012-03-01

    Full Text Available Abstract Background Japan provides universal health insurance to all legal residents. Prior research has suggested that immigrants to Japan disproportionately lack health insurance coverage, but no prior study has used rigorous methodology to examine this issue among Latin American immigrants in Japan. The aim of our study, therefore, was to assess the pattern of health insurance coverage and predictors of uninsurance among documented Latin American immigrants in Japan. Methods We used a cross sectional, mixed method approach using a probability proportional to estimated size sampling procedure. Of 1052 eligible Latin American residents mapped through extensive fieldwork in selected clusters, 400 immigrant residents living in Nagahama City, Japan were randomly selected for our study. Data were collected through face-to-face interviews using a structured questionnaire developed from qualitative interviews. Results Our response rate was 70.5% (n = 282. Respondents were mainly from Brazil (69.9%, under 40 years of age (64.5% and had lived in Japan for 9.45 years (SE 0.44; median, 8.00. We found a high prevalence of uninsurance (19.8% among our sample compared with the estimated national average of 1.3% in the general population. Among the insured full time workers (n = 209, 55.5% were not covered by the Employee's Health Insurance. Many immigrants cited financial trade-offs as the main reasons for uninsurance. Lacking of knowledge that health insurance is mandatory in Japan, not having a chronic disease, and having one or no children were strong predictors of uninsurance. Conclusions Lack of health insurance for immigrants in Japan is a serious concern for this population as well as for the Japanese health care system. Appropriate measures should be taken to facilitate access to health insurance for this vulnerable population.

  8. Human resources needs for universal access to antiretroviral therapy in South Africa: a time and motion study

    Directory of Open Access Journals (Sweden)

    Hontelez Jan AC

    2012-10-01

    Full Text Available Abstract Background Although access to life-saving treatment for patients infected with HIV in South Africa has improved substantially since 2004, treating all eligible patients (universal access remains elusive. As the prices of antiretroviral drugs have dropped over the past years, availability of human resources may now be the most important barrier to achieving universal access to HIV treatment in Africa. We quantify the number of HIV health workers (HHWs required to be added to the current HIV workforce to achieve universal access to HIV treatment in South Africa, under different eligibility criteria. Methods We performed a time and motion study in three HIV clinics in a rural, primary care-based HIV treatment program in KwaZulu-Natal, South Africa, to estimate the average time per patient visit for doctors, nurses, and counselors. We estimated the additional number of HHWs needed to achieve universal access to HIV treatment within one year. Results For universal access to HIV treatment for all patients with a CD4 cell count of ≤350 cells/μl, an additional 2,200 nurses, 3,800 counselors, and 300 doctors would be required, at additional annual salary cost of 929 million South African rand (ZAR, equivalent to US$ 141 million. For universal treatment (‘treatment as prevention’, an additional 6,000 nurses, 11,000 counselors, and 800 doctors would be required, at an additional annual salary cost of ZAR 2.6 billion (US$ 400 million. Conclusions Universal access to HIV treatment for patients with a CD4 cell count of ≤350 cells/μl in South Africa may be affordable, but the number of HHWs available for HIV treatment will need to be substantially increased. Treatment as prevention strategies will require considerable additional financial and human resources commitments.

  9. Facilitating access to sports for people in poverty? A study on local social sports policy

    Directory of Open Access Journals (Sweden)

    Hanne Vandermeerschen

    2016-06-01

    Full Text Available SAMENVATTING Mensen in armoede toegang bieden tot sport? Een studie naar lokaal sociaal sportbeleid Onderzoek heeft aangetoond dat armoede een impact heeft op de kansen voor sportdeelname. Mensen in armoede participeren minder in sport in vergelijking met mensen die gemakkelijk(er rondkomen. Op Vlaams beleidsniveau werden initiatieven genomen om lokale besturen aan te moedigen tot het promoten en faciliteren van sportdeelname voor mensen in armoede. Het is echter nog onduidelijk in welke mate dit ingang vond op lokaal niveau. In deze studie wordt onderzocht in welke mate lokale sportdiensten momenteel initiatieven nemen om sportdeelname bij mensen in armoede te faciliteren, met welke moeilijkheden sportdiensten worden geconfronteerd om dit doel te bereiken, en in welke mate lokaal sociaal sportbeleid tot stand komt door middel van samenwerkingsverbanden tussen de sportsector enerzijds, en de sociale sector anderzijds. De data zijn afkomstig van het Vlaamse Sportdiensten Panel (2014. De resultaten geven onder meer aan dat de publieke sportsector en de sociale sector nog in grote mate twee “gescheiden” werelden zijn. Het blijkt een uitdaging om de afstand tussen beiden te overbruggen. Aanbevelingen voor verder onderzoek en voor de ontwikkeling van een sociaal sportbeleid worden aangereikt. ABSTRACTFacilitating access to sports for people in poverty? A study on local social sports policy Research has shown that living in poverty affects the opportunities for engaging in practicing sports. People in poverty participate less in sports than people who have no (or fewer difficulties making ends meet. At the Flemish policy level, initiatives have been undertaken to ensure that more local sports authorities promote and facilitate participation in sports for people in poverty. However, it remains unclear how these concerns are being translated at the local level. In this study, we investigate the extent to which local sports authorities are currently

  10. Rating scale for the assessment of competence in ultrasound-guided peripheral vascular access - a Delphi Consensus Study

    DEFF Research Database (Denmark)

    Primdahl, Stine C; Todsen, Tobias; Clemmesen, Louise;

    2016-01-01

    INTRODUCTION: Peripheral vascular access is vital for treatment and diagnostics of hospitalized patients. Ultrasound-guided vascular access (UGVA) is superior to the landmark technique. To ensure competence-based education, an assessment tool of UGVA competence is needed. We aimed to develop...... a global rating scale (RS) for assessment of UGVA competence based on opinions on the content from ultrasound experts in a modified Delphi consensus study. METHODS: We included experts from anesthesiology, emergency medicine and radiology across university hospitals in Denmark. Nine elements were drafted...

  11. Elimination of HIV in South Africa through expanded access to antiretroviral therapy: a model comparison study.

    Directory of Open Access Journals (Sweden)

    Jan A C Hontelez

    2013-10-01

    Full Text Available BACKGROUND: Expanded access to antiretroviral therapy (ART using universal test and treat (UTT has been suggested as a strategy to eliminate HIV in South Africa within 7 y based on an influential mathematical modeling study. However, the underlying deterministic model was criticized widely, and other modeling studies did not always confirm the study's finding. The objective of our study is to better understand the implications of different model structures and assumptions, so as to arrive at the best possible predictions of the long-term impact of UTT and the possibility of elimination of HIV. METHODS AND FINDINGS: We developed nine structurally different mathematical models of the South African HIV epidemic in a stepwise approach of increasing complexity and realism. The simplest model resembles the initial deterministic model, while the most comprehensive model is the stochastic microsimulation model STDSIM, which includes sexual networks and HIV stages with different degrees of infectiousness. We defined UTT as annual screening and immediate ART for all HIV-infected adults, starting at 13% in January 2012 and scaled up to 90% coverage by January 2019. All models predict elimination, yet those that capture more processes underlying the HIV transmission dynamics predict elimination at a later point in time, after 20 to 25 y. Importantly, the most comprehensive model predicts that the current strategy of ART at CD4 count ≤350 cells/µl will also lead to elimination, albeit 10 y later compared to UTT. Still, UTT remains cost-effective, as many additional life-years would be saved. The study's major limitations are that elimination was defined as incidence below 1/1,000 person-years rather than 0% prevalence, and drug resistance was not modeled. CONCLUSIONS: Our results confirm previous predictions that the HIV epidemic in South Africa can be eliminated through universal testing and immediate treatment at 90% coverage. However, more realistic

  12. Gender-Related Barriers and Delays in Accessing Tuberculosis Diagnostic and Treatment Services: A Systematic Review of Qualitative Studies

    Directory of Open Access Journals (Sweden)

    Lakshmi Krishnan

    2014-01-01

    Full Text Available Background. Tuberculosis (TB remains a significant global public health problem with known gender-related (male versus female disparities. We reviewed the qualitative evidence (written/spoken narrative for gender-related differences limiting TB service access from symptom onset to treatment initiation. Methods. Following a systematic process, we searched 12 electronic databases, included qualitative studies that assessed gender differences in accessing TB diagnostic and treatment services, abstracted data, and assessed study validity. Using a modified “inductive coding” system, we synthesized emergent themes within defined barriers and delays limiting access at the individual and provider/system levels and examined gender-related differences. Results. Among 13,448 studies, 28 studies were included. All were conducted in developing countries and assessed individual-level barriers; 11 (39% assessed provider/system-level barriers, 18 (64% surveyed persons with suspected or diagnosed TB, and 7 (25% exclusively surveyed randomly sampled community members or health care workers. Each barrier affected both genders but had gender-variable nature and impact reflecting sociodemographic themes. Women experienced financial and physical dependence, lower general literacy, and household stigma, whereas men faced work-related financial and physical barriers and community-based stigma. Conclusions. In developing countries, barriers limiting access to TB care have context-specific gender-related differences that can inform integrated interventions to optimize TB services.

  13. A comparative study on transradial vs transfemoral artery access for primary percutaneous coronary intervention in patients with acute myocardial infarction

    Institute of Scientific and Technical Information of China (English)

    傅向华

    2003-01-01

    A comparative study on transradial vs transfemoral artery access for primary percutaneous coronary intervention in patients with acute myocardial infarction!050000$河北医科大学第二医院河北医科大学心脏介入中心@傅向华

  14. Access to UG and Language Transfer: A Study of L2 Learners' Interpretation of Reconstruction in Chinese.

    Science.gov (United States)

    Ying, H. G.

    1999-01-01

    A study of native English speakers learning Chinese investigated second-language learners' knowledge of reconstruction in Chinese. Results of a sentence-interpretation task indicated that English speakers had access to a universal grammar. They demonstrated knowledge of ambiguity of ziti (self) inside a moved predicate and lack of ambiguity of…

  15. Improving patient access in nuclear medicine: a case study of PET scanner scheduling.

    Science.gov (United States)

    Marmor, Yariv N; Kemp, Bradley J; Huschka, Todd R; Ruter, Royce L; McConnell, Daniel M; Rohleder, Thomas R

    2013-01-01

    We used the systems engineering technique of discrete event simulation modeling to assist in increasing patient access to positron emission tomographic examinations in the Department of Nuclear Medicine at Mayo Clinic, Rochester. The model was used to determine the best universal slot length to address the specific access challenges of a destination medical center such as Mayo Clinic. On the basis of the modeling, a new schedule was implemented in April 2012 and our before and after data analysis shows an increase of 2.4 scans per day. This was achieved without requiring additional resources or negatively affecting patient waiting, staff satisfaction (as evaluated by day length), or examination quality.

  16. Maternal mortality in the rural Gambia, a qualitative study on access to emergency obstetric care

    Directory of Open Access Journals (Sweden)

    Sundby Johanne

    2005-05-01

    Full Text Available Abstract Background Maternal mortality is the vital indicator with the greatest disparity between developed and developing countries. The challenging nature of measuring maternal mortality has made it necessary to perform an action-oriented means of gathering information on where, how and why deaths are occurring; what kinds of action are needed and have been taken. A maternal death review is an in-depth investigation of the causes and circumstances surrounding maternal deaths. The objectives of the present study were to describe the socio-cultural and health service factors associated with maternal deaths in rural Gambia. Methods We reviewed the cases of 42 maternal deaths of women who actually tried to reach or have reached health care services. A verbal autopsy technique was applied for 32 of the cases. Key people who had witnessed any stage during the process leading to death were interviewed. Health care staff who participated in the provision of care to the deceased was also interviewed. All interviews were tape recorded and analyzed by using a grounded theory approach. The standard WHO definition of maternal deaths was used. Results The length of time in delay within each phase of the model was estimated from the moment the woman, her family or health care providers realized that there was a complication until the decision to seeking or implementing care was made. The following items evolved as important: underestimation of the severity of the complication, bad experience with the health care system, delay in reaching an appropriate medical facility, lack of transportation, prolonged transportation, seeking care at more than one medical facility and delay in receiving prompt and appropriate care after reaching the hospital. Conclusion Women do seek access to care for obstetric emergencies, but because of a variety of problems encountered, appropriate care is often delayed. Disorganized health care with lack of prompt response to

  17. [Open access to academic scholarship as a public policy resource: a study of the Capes database on Brazilian theses and dissertations].

    Science.gov (United States)

    da Silva Rosa, Teresa; Carneiro, Maria José

    2010-12-01

    Access to scientific knowledge is a valuable resource than can inform and validate positions taken in formulating public policy. But access to this knowledge can be challenging, given the diversity and breadth of available scholarship. Communication between the fields of science and of politics requires the dissemination of scholarship and access to it. We conducted a study using an open-access search tool in order to map existent knowledge on a specific topic: agricultural contributions to the preservation of biodiversity. The present article offers a critical view of access to the information available through the Capes database on Brazilian theses and dissertations.

  18. A comparative study to evaluate the effect of limited access dressing (LAD) on burn wound healing.

    Science.gov (United States)

    Honnegowda, Thittamaranahalli M; Kumar, Pramod; Padmanabha Udupa, Echalasara G; Sharan, Anurag; Singh, Rekha; Prasad, Hemanth K; Rao, Pragna

    2016-10-01

    Biochemical and histopathological analyses are commonly used objective parameters in research and clinical fields to assess the healing status of burn wounds. In this study, the effect of newer intermittent negative-pressure wound therapy in combination with moist environment [limited access dressing (LAD)] on burn wound healing is studied. Various biochemical parameters like hydroxyproline, hexosamine and total protein, and antioxidants like reduced glutathione (GSH), glutathione peroxidase (GPx) and oxidative biomarker malondialdhyde (MDA) were measured in the granulation tissue. Histopathologically, necrotic tissue, amount of inflammatory infiltrate, angiogenesis and extracellular matrix deposition (ECM) were studied to determine wound healing. A total of 55 patients were divided into two groups as follows: LAD group (n = 28) and conventional dressing group (n = 27). Patients treated with LAD have shown significant increase in the mean levels of (±SD) hydroxyproline (75·2 ± 26·30 versus 27·8 ± 15·5; P = 0·010), hexosamine (9·0 ± 1·99 versus 8·0 ± 1·18; P = 0·038), total protein (15·6 ± 8·23 versus 10·26 ± 4·94; P = 0·003), GSH (7·40 ± 1·91 versus 5·1 ± 1·28; P = 0·037), GPx (112·6 ± 46·4 versus 92 ± 32·4; P = 0·016), and decrease in MDA (6·5 ± 2·24 versus 1 0·6 ± 3·8; P = 0·002). Histopathologically, between LAD and conventional dressing groups, there was a significant difference after 10 days of treatment (mean±SE) in necrotic tissue of (LAD versus conventional dressing groups = 10 ± 1·8 versus 11·9 ± 2·6; P = 0·033), inflammatory cells (8·4 ± 1·9 versus 13 ± 3·46; P = 0·021), new blood vessels (12·5 ± 2·87 versus 9·4 ± 1·7; P = 0·047), ECM deposit (12·9 ± 2·41 versus 9·68 ± 1·3; P = 0·018) and showed comparatively fewer inflammatory cells, increased and well-organised extracellular matrix deposit, more angiogenesis in LAD group as compared with that in conventional dressing group. To conclude

  19. Electricity access. Southern Africa sub-regional study: South Africa and Zimbabwe

    Energy Technology Data Exchange (ETDEWEB)

    Davidson, O.R.; Mwakasonda, S.A.

    2004-07-01

    This study focuses on the accessibility of electricity to the poor in South Africa and Zimbabwe as a means to improve understanding of the various factors that affect the provision of modern energy to the poor in these countries. The study examines the impact on the poor of power sector reforms. Specifically, it makes an assessment of the impact of the electrification programmes in the two countries. The situation in the two countries is discussed separately, followed by a comparative analysis. South Africa is the most industrialised country in Africa and it is endowed with a wide variety of natural resources. It is currently going through major changes in many spheres of its economy, including energy, following the democratic elections in 1994. An important consideration that is directing all aspects of government policy is the need to address the enormous disparities in income levels and living conditions betaveen the different racial groups, a result of apartheid. The rural areas are even more impoverished than urban ones. Alter the 1994 democratic elections, the South African Government launched the first phase of the National Electrification Programme (1994-99), aimed at increasing electrification from 36 per cent to about 66 per cent nationally by 2001 - 46 per cent rural and 80 per cent urban. By the end of 2001, 66.1 per cent of households were electrified, with more than 3.4 million connections made since 1994. Since then, several polities have been introduced in the electricity sector that are of direct relevance to this work. The most important of these concern the restructuring of the electricity supply industry and direct subsidies for the poor and disadvantaged. The South African Government established a National Electrification Fund to subsidise a portion of the capital costs of new electricity connections under the National Electrifcation Programme. The Fund derives its income not only from the electricity industry, but also from fiscal allocations

  20. Factors that help injecting drug users to access and benefit from services: A qualitative study

    Directory of Open Access Journals (Sweden)

    sheard Laura

    2007-10-01

    Full Text Available Abstract Background International research shows that injecting drug users (IDUs can encounter many barriers when they try to access drug treatment and other services. However, the existing literature is mostly quantitative and does not consider the kinds of factors that injectors themselves identify as enabling them to access and benefit from services. Responding to this gap in knowledge, our paper explores IDUs' own suggestions for improving service engagement and their reports of other factors enabling them to seek help. Methods Semi-structured qualitative interviews were conducted with 75 current illicit drug injectors in three geographically diverse areas of West Yorkshire, England. Recruitment was through needle exchange programmes, with additional snowball sampling to ensure inclusivity of gender, ethnicity and primary drug injected. Transcribed data were analysed thematically using Framework. Results Although participants were often satisfied with current access to services, they made three broad suggestions for improving engagement. These were: providing more services (more providers and more forms of support; better operation of existing services (including better communication systems and more flexibility around individual needs; and staffing-related improvements (particularly, less judgemental and more understanding staff attitudes. Other factors identified as important enablers of help seeking were: having supporting relationships (particularly with family members; personal circumstances/life events (especially becoming a parent; and an injector's state of mind (such as feeling motivated and positive. Conclusion A range of practical suggestions for improving IDUs' access to drug treatment and other services are identified.

  1. Making Physical Activity Accessible to Older Adults with Memory Loss: A Feasibility Study

    Science.gov (United States)

    Logsdon, Rebecca G.; McCurry, Susan M.; Pike, Kenneth C.; Teri, Linda

    2009-01-01

    Purpose: For individuals with mild cognitive impairment (MCI), memory loss may prevent successful engagement in exercise, a key factor in preventing additional disability. The Resources and Activities for Life Long Independence (RALLI) program uses behavioral principles to make exercise more accessible for these individuals. Exercises are broken…

  2. Benefits of Location-Based Access Control:A Literature Study

    NARCIS (Netherlands)

    Cleeff, van André; Pieters, Wolter; Wieringa, Roel

    2010-01-01

    Location-based access control (LBAC) has been suggested as a means to improve IT security. By 'grounding' users and systems to a particular location, attackers supposedly have more difficulty in compromising a system. However, the motivation behind LBAC and its potential benefits have not been inve

  3. Exploring the Design, Development and Use of Websites through Accessibility and Usability Studies

    Science.gov (United States)

    Foley, Alan

    2011-01-01

    In this paper, data obtained from a university website accessibility and usability validation process are analyzed and used to demonstrate how the design process can affect the online experience for users with disabilities. Interviews, observations, and use data (e.g. where users clicked on a page or what path taken through a site) were collected.…

  4. Public Internet Access Points (PIAPs) and Their Social Impact: A Case Study from Turkey

    Science.gov (United States)

    Afacan, Gulgun; Er, Erkan; Arifoglu, Ali

    2013-01-01

    Building public Internet access points (PIAPs) is a significant contribution of governments towards achieving an information society. While many developing countries are investing great amounts to establish PIAPs today, people may not use PIAPs effectively. Yet, the successful implementation of PIAPs is the result of citizens' acceptance to use…

  5. Institutional Repositories, Open Access, and Scholarly Communication: A Study of Conflicting Paradigms

    Science.gov (United States)

    Cullen, Rowena; Chawner, Brenda

    2011-01-01

    The Open Access movement of the past decade, and institutional repositories developed by universities and academic libraries as a part of that movement, have openly challenged the traditional scholarly communication system. This article examines the growth of repositories around the world, and summarizes a growing body of evidence of the response…

  6. Feasibility studies for accessing nucleon structure observables with the PANDA experiment at the future FAIR facility

    Energy Technology Data Exchange (ETDEWEB)

    Mora Espi, Maria Carmen

    2012-10-15

    angular distribution. Above this s limit, the low cross section will not allow the direct extraction of the electromagnetic form factors. However, the total cross section can still be measured and an extraction of the electromagnetic form factors is possible considering certain assumptions on the ratio between the electric and magnetic contributions. The transition distribution amplitudes are new non-perturbative objects describing the transition between a baryon and a meson. They are accessible in hard exclusive processes like anti pp{yields}e{sup +}e{sup -}{pi}{sup 0}. The study of this process with PANDA will test the transition distribution amplitudes approach. This work includes a feasibility study for measuring this channel with PANDA. The main background reaction is here anti pp{yields}{pi}{sup +}{pi}{sup -}{pi}{sup 0}. A background suppression factor of 10{sup 8} has been achieved while keeping a signal efficiency above 20 %. Part of this work has been published in the European Physics Journal A 44, 373-384 (2010).

  7. Reviews and Practice of College Students Regarding Access to Scientific Knowledge: A Case Study in Two Spanish Universities

    Directory of Open Access Journals (Sweden)

    José Manuel Sáez López

    2013-09-01

    Full Text Available This study analyzes the concepts, attitudes, and practices of 327 pedagogy students from two major Spanish universities related to the process of finding academic information utilizing open access. A training program has been developed through an innovation project (PIMCD to address the problem of the lack of university training designed to enable students to access reliable sources of scientific knowledge. A mixed questionnaire with a pretest-posttest design, applying a descriptive analysis, a factor analysis, and a Wilcoxon test was administered to students. The results show that it is essential to provide information and training to encourage university students to learn how to find and manage rigorous and reliable sources of information. While searching for academic information, Spanish students tend to focus on the use of Google and, to a lesser extent, Google Scholar. Although there are no significant limitations of access to Spanish language articles, students’ attitudes remain very positive towards the concept of open access. In short, in accordance with the study results, the promotion of educational activities relating to the search for and selection of information and the use of reliable and rigorous academic content is highly recommended in the university context.

  8. MEASURING LAND USES ACCESSIBILITY BY USING FUZZY MAJORITY GIS-BASED MULTICRITERIA DECISION ANALYSIS CASE STUDY: MALAYER CITY

    Directory of Open Access Journals (Sweden)

    A. Taravat

    2014-10-01

    Full Text Available Public spaces accessibility has become one of the important factors in urban planning. Therefore, considerable attention has been given to measure accessibility to public spaces on the UK, US and Canada, but there are few studies outside the anglophone world especially in developing countries such as Iran. In this study an attempt has been made to measure objective accessibility to public spaces (parks, school, library and administrative using fuzzy majority GIS-based multicriteria decision analysis. This method is for defining the priority for distribution of urban facilities and utilities as the first step towards elimination of social justice. In order to test and demonstrate the presented model, the comprehensive plan of Malayer city has been considered for ranking in three objectives and properties in view of index per capital (Green space, sport facilities and major cultural centers like library and access index. The results can be used to inform the local planning process and the GIS approach can be expanded into other local authority domains. The results shows that the distribution of facilities in Malayer city has followed on the base of cost benefit law and the human aspect of resource allocation programming of facilities (from centre to suburbs of the city.

  9. Development of a Web-Accessible Population Pharmacokinetic Service—Hemophilia (WAPPS-Hemo): Study Protocol

    Science.gov (United States)

    Foster, Gary; Navarro-Ruan, Tamara; McEneny-King, Alanna; Edginton, Andrea N; Thabane, Lehana

    2016-01-01

    Background Individual pharmacokinetic assessment is a critical component of tailored prophylaxis for hemophilia patients. Population pharmacokinetics allows using individual sparse data, thus simplifying individual pharmacokinetic studies. Implementing population pharmacokinetics capacity for the hemophilia community is beyond individual reach and requires a system effort. Objective The Web-Accessible Population Pharmacokinetic Service—Hemophilia (WAPPS-Hemo) project aims to assemble a database of patient pharmacokinetic data for all existing factor concentrates, develop and validate population pharmacokinetics models, and integrate these models within a Web-based calculator for individualized pharmacokinetic estimation in patients at participating treatment centers. Methods Individual pharmacokinetic studies on factor VIII and IX concentrates will be sourced from pharmaceutical companies and independent investigators. All factor concentrate manufacturers, hemophilia treatment centers (HTCs), and independent investigators (identified via a systematic review of the literature) having on file pharmacokinetic data and willing to contribute full or sparse pharmacokinetic data will be eligible for participation. Multicompartmental modeling will be performed using a mixed-model approach for derivation and Bayesian forecasting for estimation of individual sparse data. NONMEM (ICON Development Solutions) will be used as modeling software. Results The WAPPS-Hemo research network has been launched and is currently joined by 30 HTCs from across the world. We have gathered dense individual pharmacokinetic data on 878 subjects, including several replicates, on 21 different molecules from 17 different sources. We have collected sparse individual pharmacokinetic data on 289 subjects from the participating centers through the testing phase of the WAPPS-Hemo Web interface. We have developed prototypal population pharmacokinetics models for 11 molecules. The WAPPS-Hemo website

  10. Estudio de la recuperación del zinc presente en los baños agotados de decapado procedentes de las industrias de galvanizado de zinc en caliente mediante técnicas electroquímicas

    OpenAIRE

    Carrillo Abad, Jorge

    2016-01-01

    Actualmente, el 43% de la producción mundial de zinc se destina al proceso de galvanizado por inmersión en caliente. Previamente a la introducción de las piezas en el baño de zinc fundido, éstas necesitan una serie de tratamientos superficiales. Entre estos tratamientos cabe destacar la etapa de decapado, que consiste en la inmersión de las piezas en un baño de ácido clorhídrico para eliminar de su superficie cáscaras y restos de óxido, como la etapa más contaminante del p...

  11. El ejercicio físico en agua caliente reduce el dolor pero no el número de puntos sensibles de mujeres con fibromialgia: un ensayo clínico randomizado

    OpenAIRE

    Tomas-Carus, Pablo; Raimundo, Armando; TIMON, Rafael; Gusi, Narcis

    2007-01-01

    Introducción: el propósito de este estudio fue evaluar los efectos de 8 meses de ejercicio físico en agua caliente sobre el dolor de mujeres con fi- bromialgia (FM). Métodos: treinta y tres pacientes fueron distri- buidas aleatoriamente en dos grupos: un grupo de ejercicio (n=17), que realizó 3 sesiones semanales de 60 minutos de ejercicio físico; y un grupo de control (n=16), que continuó realizando sus activi- dades habituales de la vida diaria. El dolor fue evaluado usando las dimension...

  12. Dimensionado de la instalación de energía solar térmica para producción de agua caliente sanitaria de un módulo de la prisión Puerto III

    OpenAIRE

    Díaz Villarejo, Juan Luis

    2012-01-01

    El siguiente proyecto es un dimensionado de los componentes de un sistema solar activo de baja temperatura para la obtención de agua caliente sanitaria (ACS) para el Centro Penitenciario de Puerto III, ubicado en la carretera A-2078, 7Km, CP 11.500, municipio del Puerto de Santa María (provincia de Cádiz). El objeto del proyecto incluye todo el dimensionado teórico del sistema de energía solar térmica necesario para el edificio, desde los cálculos de necesidades, hasta, por ...

  13. Cinética de secado de fruta bomba (Carica papaya L., cv. Maradol Roja) mediante los métodos de deshidratación osmótica y por flujo de aire caliente

    OpenAIRE

    Daybelis Fernández Valdés; Sahylin Muñiz Becerá; Annia García Pereira; Rafael Cervantes Beyra; Dayvis Fernández Valdés

    2015-01-01

    La deshidratación es uno de los métodos más utilizados para la conservación de frutas y vegetales, mediante su uso se logra extender los períodos de almacenamiento preservando siempre la calidad de los productos. El presente trabajo tiene como objetivo evaluar el comportamiento cinético de las principales propiedades de la fruta bomba (Carica papaya L, cv. Maradol Roja) durante los procesos agroindustriales de deshidratación osmótica (DO) y por flujo de aire caliente (DAC). Las frutas se cort...

  14. 34 CFR Appendix A to Subpart C of... - Grants for Access and Persistence Program (GAP) State Grant Allotment Case Study

    Science.gov (United States)

    2010-07-01

    ... 34 Education 3 2010-07-01 2010-07-01 false Grants for Access and Persistence Program (GAP) State Grant Allotment Case Study A Appendix A to Subpart C of Part 692 Education Regulations of the Offices of...) State Grant Allotment Case Study ER29OC09.010 ER29OC09.011 ER29OC09.012 ER29OC09.013...

  15. A Comparative Study of Ethylene Emanation upon Nitrogen Deficiency in Natural Accessions of Arabidopsis thaliana

    Science.gov (United States)

    De Gernier, Hugues; De Pessemier, Jérôme; Xu, Jiajia; Cristescu, Simona M.; Van Der Straeten, Dominique; Verbruggen, Nathalie; Hermans, Christian

    2016-01-01

    An original approach to develop sustainable agriculture with less nitrogen fertilizer inputs is to tackle the cross-talk between nitrogen nutrition and plant growth regulators. In particular the gaseous hormone, ethylene, is a prime target for that purpose. The variation of ethylene production in natural accessions of the model species Arabidopsis thaliana was explored in response to the nitrate supply. Ethylene was measured with a laser-based photoacoustic detector. First, experimental conditions were established with Columbia-0 (Col-0) accession, which was grown in vitro on horizontal plates across a range of five nitrate concentrations (0.5, 1, 2.5, 5, or 10 mM). The concentrations of 1 and 10 mM nitrate were retained for further characterization. Along with a decrease of total dry biomass and higher biomass allocation to the roots, the ethylene production was 50% more important at 1 mM than at 10 mM nitrate. The total transcript levels of 1-AMINOCYCLOPROPANE-1-CARBOXYLIC ACID SYNTHASES (ACS) in roots and those of ACC OXIDASES (ACO) in shoots increased by 100% between the same treatments. This was mainly due to higher transcript levels of ACS6 and of ACO2 and ACO4 respectively. The assumption was that during nitrogen deficiency, the greater biomass allocation in favor of the roots was controlled by ethylene being released in the shoots after conversion of ACC originating from the roots. Second, biomass and ethylene productions were measured in 20 additional accessions. Across all accessions, the total dry biomass and ethylene production were correlated negatively at 1 mM but positively at 10 mM nitrate. Furthermore, polymorphism was surveyed in ACC and ethylene biosynthesis genes and gene products among accessions. Very few substitutions modifying the amino acids properties in conserved motifs of the enzymes were found in the accessions. Natural variation of ethylene production could be further explored to improve Nitrogen Use Efficiency (NUE), in particular by

  16. A suite of methods for representing activity space in a healthcare accessibility study

    Directory of Open Access Journals (Sweden)

    Gesler Wilbert M

    2005-10-01

    Full Text Available Abstract Background "Activity space" has been used to examine how people's habitual movements interact with their environment, and can be used to examine accessibility to healthcare opportunities. Traditionally, the standard deviational ellipse (SDE, a Euclidean measure, has been used to represent activity space. We describe the construction and application of the SDE at one and two standard deviations, and three additional network-based measures of activity space using common tools in GIS: the road network buffer (RNB, the 30-minute standard travel time polygon (STT, and the relative travel time polygon (RTT. We compare the theoretical and methodological assumptions of each measure, and evaluate the measures by examining access to primary care services, using data from western North Carolina. Results Individual accessibility is defined as the availability of healthcare opportunities within that individual's activity space. Access is influenced by the shape and area of an individual's activity space, the spatial distribution of opportunities, and by the spatial structures that constrain and direct movement through space; the shape and area of the activity space is partly a product of how it is conceptualized and measured. Network-derived measures improve upon the SDE by incorporating the spatial structures (roads that channel movement. The area of the STT is primarily influenced by the location of a respondent's residence within the road network hierarchy, with residents living near primary roads having the largest activity spaces. The RNB was most descriptive of actual opportunities and can be used to examine bypassing. The area of the RTT had the strongest correlation with a healthcare destination being located inside the activity space. Conclusion The availability of geospatial technologies and data create multiple options for representing and operationalizing the construct of activity space. Each approach has its strengths and limitations

  17. A Comparative Study of Multiplexing Schemes for Next Generation Optical Access Networks

    Science.gov (United States)

    Imtiaz, Waqas A.; Khan, Yousaf; Shah, Pir Mehar Ali; Zeeshan, M.

    2014-09-01

    Passive optical network (PON) is a high bandwidth, economical solution which can provide the necessary bandwidth to end-users. Wavelength division multiplexed passive optical networks (WDM PONs) and time division multiplexed passive optical networks (TDM PONs) are considered as an evolutionary step for next-generation optical access (NGOA) networks. However they fail to provide highest transmission capacity, efficient bandwidth access, and robust dispersion tolerance. Thus future PONs are considered on simpler, efficient and potentially scalable, optical code division multiplexed (OCDM) PONs. This paper compares the performance of existing PONs with OCDM PON to determine a suitable scheme for NGOA networks. Two system parameter are used in this paper: fiber length, and bit rate. Performance analysis using Optisystem shows that; for a sufficient system performance parameters i.e. bit error rate (BER) ≤ 10-9, and maximum quality factor (Q) ≥ 6, OCDMA PON efficiently performs upto 50 km with 10 Gbit/s per ONU.

  18. Accessibility and Third World Rural Development: A Case Study of Sumatra

    OpenAIRE

    Cervero, Robert

    1992-01-01

    Road and transport service improvements are widely recognized as important catalysts to economic development in most third world countries. When integrated with other programs which create new employment opportunities, roads and bus services enable subsistence farmers to seek off-farm salary-earning jobs. This paper examines the relationship between accessibility and economic well-being using data from rural Sumatra in Indonesia. The research relies on multiple indicators of both measures. Ho...

  19. Achieving Access to Knowledge through E-Learning: A Case Study

    Directory of Open Access Journals (Sweden)

    Christian A. Bolu

    2012-10-01

    Full Text Available More and more scholars are turning to the Internet to find scientific information and academic institutions are devoting more and more resources to improving their presence on the web.E-learning programs and open access initiatives allow knowledge of these institutions to spread beyond physical boundaries. The Web can hence be used as a way to attract students, scholars and funding from other places, spreading the prestige of these educational institutions all over the world. This has provoked competition between universities to achieve an advantageous visibility on the Web and to improve their position in search engine results.This paper examines ongoing e-learning effort globally to enhance access to knowledge. In particular the role of University of Nigeria is playing in the promotion of access to knowledge is discussed. In line with their Information and Communication Technology Programme, the University has created an Internet repository of over 20,000 documents such as theses, journals articles and academic publications as well as a vibrant e-learning portal.

  20. Experimental Studies of the Inspection of Areas With Restricted Access Using A0 Lamb Wave Tomography.

    Science.gov (United States)

    Seher, Matthias; Huthwaite, Peter; Lowe, Michael J S

    2016-09-01

    Corrosion damage in inaccessible regions presents a significant challenge to the petrochemical industry, and determining the remaining wall thickness is important to establish the remaining service life. Guided wave tomography is one solution to this and involves transmitting Lamb waves through the area of interest and, subsequently, using the received signals to reconstruct a thickness map of the remaining wall thickness. This avoids the need to access all points on the surface, making the technique well suited to inspection for areas with restricted access. The influence of these areas onto the ability to detect and size surface conditions, such as corrosion damage, using guided wave tomography is assessed. For that, a guided wave tomography system is employed, which is based on low-frequency A0 Lamb waves that are excited and detected with two arrays of electromagnetic acoustic transducers. Two different defect depths are considered with different contrasts relative to the nominal wall thickness, both of which are smoothly varying and well-defined. The influence of areas with restricted surface access, support locations, pipe clamps, and STOPAQ(R) coatings is experimentally tested, and their influence assessed through comparison to a baseline reconstruction without the respective restriction in place, demonstrating only a small influence on the detected value of the remaining wall thickness.

  1. A metasynthesis of qualitative studies regarding opinions and perceptions about barriers and determinants of health services’ accessibility in economic migrants

    Directory of Open Access Journals (Sweden)

    Agudelo-Suárez Andrés A

    2012-12-01

    Full Text Available Abstract Background Access to health services is an important health determinant. New research in health equity is required, especially amongst economic migrants from developing countries. Studies conducted on the use of health services by migrant populations highlight existing gaps in understanding which factors affect access to these services from a qualitative perspective. We aim to describe the views of the migrants regarding barriers and determinants of access to health services in the international literature (1997–2011. Methods A systematic review was conducted for Qualitative research papers (English/Spanish published in 13 electronic databases. A selection of articles that accomplished the inclusion criteria and a quality evaluation of the studies were carried out. The findings of the selected studies were synthesised by means of metasynthesis using different analysis categories according to Andersen’s conceptual framework of access and use of health services and by incorporating other emergent categories. Results We located 3,025 titles, 36 studies achieved the inclusion criteria. After quality evaluation, 28 articles were definitively synthesised. 12 studies (46.2% were carried out in the U.S and 11 studies (42.3% dealt with primary care services. The participating population varied depending mainly on type of host country. Barriers were described, such as the lack of communication between health services providers and migrants, due to idiomatic difficulties and cultural differences. Other barriers were linked to the economic system, the health service characteristics and the legislation in each country. This situation has consequences for the lack of health control by migrants and their social vulnerability. Conclusions Economic migrants faced individual and structural barriers to the health services in host countries, especially those with undocumented situation and those experimented idiomatic difficulties. Strategies to

  2. Identifying strategies to improve access to credible and relevant information for public health professionals: a qualitative study

    Directory of Open Access Journals (Sweden)

    Simpson E Hatheway

    2006-04-01

    Full Text Available Abstract Background Movement towards evidence-based practices in many fields suggests that public health (PH challenges may be better addressed if credible information about health risks and effective PH practices is readily available. However, research has shown that many PH information needs are unmet. In addition to reviewing relevant literature, this study performed a comprehensive review of existing information resources and collected data from two representative PH groups, focusing on identifying current practices, expressed information needs, and ideal systems for information access. Methods Nineteen individual interviews were conducted among employees of two domains in a state health department – communicable disease control and community health promotion. Subsequent focus groups gathered additional data on preferences for methods of information access and delivery as well as information format and content. Qualitative methods were used to identify themes in the interview and focus group transcripts. Results Informants expressed similar needs for improved information access including single portal access with a good search engine; automatic notification regarding newly available information; access to best practice information in many areas of interest that extend beyond biomedical subject matter; improved access to grey literature as well as to more systematic reviews, summaries, and full-text articles; better methods for indexing, filtering, and searching for information; and effective ways to archive information accessed. Informants expressed a preference for improving systems with which they were already familiar such as PubMed and listservs rather than introducing new systems of information organization and delivery. A hypothetical ideal model for information organization and delivery was developed based on informants' stated information needs and preferred means of delivery. Features of the model were endorsed by the subjects who

  3. Young people with depression and their experience accessing an enhanced primary care service for youth with emerging mental health problems: a qualitative study

    Directory of Open Access Journals (Sweden)

    McCann Terence V

    2012-08-01

    Full Text Available Abstract Background Despite the emergence of mental health problems during adolescence and early adulthood, many young people encounter difficulties accessing appropriate services. In response to this gap, the Australian Government recently established new enhanced primary care services (headspace that target young people with emerging mental health problems. In this study, we examine the experience of young people with depression accessing one of these services, with a focus on understanding how they access the service and the difficulties they encounter in the process. Method Individual, in-depth, audio-recorded interviews were used to collect data. Twenty-six young people with depression were recruited from a headspace site in Melbourne, Australia. Interpretative phenomenological analysis was used to analyse the data. Results Four overlapping themes were identified in the data. First, school counsellors as access mediators, highlights the prominent role school counsellors have in facilitating student access to the service. Second, location as an access facilitator and inhibitor. Although the service is accessible by public transport, it is less so to those who do not live near public transport. Third, encountering barriers accessing the service initially. Two main service access barriers were experienced: unfamiliarity with the service, and delays in obtaining initial appointments for ongoing therapy. Finally, the service’s funding model acts as an access facilitator and barrier. While the model provides a low or no cost services initially, it limits the number of funded sessions, and this can be problematic. Conclusions Young people have contrasting experiences accessing the service. School counsellors have an influential role in facilitating access, and its close proximity to public transport enhances access. The service needs to become more prominent in young people’s consciousness, while the appointment system would benefit from

  4. ACCESS Pointing Control System

    Science.gov (United States)

    Brugarolas, Paul; Alexander, James; Trauger, John; Moody, Dwight; Egerman, Robert; Vallone, Phillip; Elias, Jason; Hejal, Reem; Camelo, Vanessa; Bronowicki, Allen; O'Connor, David; Partrick, Richard; Orzechowski, Pawel; Spitter, Connie; Lillie, Chuck

    2010-01-01

    ACCESS (Actively-Corrected Coronograph for Exoplanet System Studies) was one of four medium-class exoplanet concepts selected for the NASA Astrophysics Strategic Mission Concept Study (ASMCS) program in 2008/2009. The ACCESS study evaluated four major coronograph concepts under a common space observatory. This paper describes the high precision pointing control system (PCS) baselined for this observatory.

  5. Study of conditions of use of E-services accessible to visually disabled persons

    CERN Document Server

    Bobiller-Chaumon, Marc-Eric; Sandoz-Guermond, Françoise

    2007-01-01

    The aim of this paper is to determine the expectations that French-speaking disabled persons have for electronic administrative sites (utility). At the same time, it is a matter of identifying the difficulties of use that the manipulation of these E-services poses concretely for blind people (usability) and of evaluating the psychosocial impacts on the way of life of these people with specific needs. We show that the lack of numerical accessibility is likely to accentuate the social exclusion of which these people are victim by establishing a numerical glass ceiling.

  6. A Study on the Stream Cipher Embedded Magic Square of Random Access Files

    Science.gov (United States)

    Liu, Chenglian; Zhao, Jian-Ming; Rafsanjani, Marjan Kuchaki; Shen, Yijuan

    2011-09-01

    Magic square and stream cipher issues are both interesting and well-tried topics. In this paper, we are proposing a new scheme which streams cipher applications for random access files based on the magic square method. There are two thresholds required to secure our data, if using only decrypts by the stream cipher. It isn't to recovery original source. On other hand, we improve the model of cipher stream to strengthen and defend efficiently; it also was its own high speed and calculates to most parts of the key stream generator.

  7. Studying on equilibriums between price and QoS in multi-provider overlay access networks

    Institute of Scientific and Technical Information of China (English)

    Wang Yufeng; Wang Wendong

    2006-01-01

    From the viewpoint of game theory, this paper proposes a model that combines QoS index with price factor in overlay access networks, and uses the multinomial logit (MNL) to model the choice behaviour of users. Each service class is considered an independent and competitive entity offered by each provider,which aims at maximizing its own utility. Based on noncooperative game, we prove the existence and uniqueness of equilibriums between QoS levels and prices among various service classes, and demonstrate the properties of equilibriums. Finally, these results are verified via numerical analysis.

  8. Investigating an accessible and usable epub book via VoiceOver: a case study

    OpenAIRE

    Bartalesi Lenzi, Valentina; Leporini, Barbara

    2013-01-01

    In this paper we investigate the opportunities and limitations for blind and visually impaired people when reading an ePub document via Voice-Over for mobile devices. The ePub format is based on an (x)html structure; organizing and handling its source code is therefore very important in order to guarantee satisfactory interaction with the eBook. In this work we analyze the main accessibility and usability issues when interacting with an ePub document via VoiceOver, in order to evaluate possib...

  9. Caracterización de residuos sólidos procedentes de dos procesos distintos de galvanizado en caliente por inmersión

    Directory of Open Access Journals (Sweden)

    Delvasto, P.

    2012-02-01

    Full Text Available Zinc dust and zinc ash from hot-dip galvanizing industries located in Venezuela were characterized using atomic spectroscopy, scanning electron microscopy, X-Ray diffraction and infrared spectroscopy. Dust was formed during the high-pressure drying process of the galvanized pieces, in a plant that uses a steel kettle to hold the molten zinc. Ash identified as “A” came from the same plant as the dust, while ash identified as “B” came from a hot-dip galvanizing plant which use a ceramic lined galvanizing furnace. Dust contained 98 wt % Zn, in metallic form. Both ash samples contained: Zn and ZnO, while Zn5(OH8Cl2—H2O and ZnCl2 were only found in ash “B”. Globally, ash “A” and ash “B” contain 71 and 75 wt % Zn, respectively.

    Se caracterizaron polvos y escorias de zinc de industrias venezolanas de galvanizado en caliente por inmersión empleando espectroscopía atómica, microscopía electrónica de barrido, difracción de R-X y espectroscopía infrarroja. Los polvos se obtienen del proceso de secado a alta presión de las piezas en una planta cuyo proceso se basa en una cuba de acero para contener el zinc fundido, planta de la cual procede también la muestra de escoria denominada “A”. Por su parte, la escoria denominada “B” se genera en una industria que utiliza una cuba recubierta con refractario cerámico. Los polvos contienen 98 % en peso de zinc, en forma metálica. Las escorias, por su parte, presentaron las siguientes fases: Zn y ZnO,. Adicionalmente, la escoria “B” mostró la presencia ZnCl2 y Zn5(OH8Cl2—H2O. El contenido total de zinc (% en peso en la escoria “A” es 71 %, mientras que en la escoria “B” es 75 %.

  10. Multi-lingual search engine to access PubMed monolingual subsets: a feasibility study.

    Science.gov (United States)

    Darmoni, Stéfan J; Soualmia, Lina F; Griffon, Nicolas; Grosjean, Julien; Kerdelhué, Gaétan; Kergourlay, Ivan; Dahamna, Badisse

    2013-01-01

    PubMed contains many articles in languages other than English but it is difficult to find them using the English version of the Medical Subject Headings (MeSH) Thesaurus. The aim of this work is to propose a tool allowing access to a PubMed subset in one language, and to evaluate its performance. Translations of MeSH were enriched and gathered in the information system. PubMed subsets in main European languages were also added in our database, using a dedicated parser. The CISMeF generic semantic search engine was evaluated on the response time for simple queries. MeSH descriptors are currently available in 11 languages in the information system. All the 654,000 PubMed citations in French were integrated into CISMeF database. None of the response times exceed the threshold defined for usability (2 seconds). It is now possible to freely access biomedical literature in French using a tool in French; health professionals and lay people with a low English language may find it useful. It will be expended to several European languages: German, Spanish, Norwegian and Portuguese.

  11. Study of Teachers’ Access to and Utilization of ICT in the Middle-Schools of Metropolitan Isfahan

    Directory of Open Access Journals (Sweden)

    Susan Shahbaz

    2007-10-01

    Full Text Available Every year vast sums of capital, time and energy is spent on staff education and re-training in the Educational Organization. Studies should be made over the efficiency and efficacy of these courses so as to determine the extent of practical utility of the items learned thereof and to identify the short-falls. The present investigation is primary concerned with answering this issue and the factors affecting it. The investigation used a descriptive survey method. 180 teachers where drawn from the middle-schools having an ICT workshop, using simple randomization correlating with the number of teachers in the chosen districts. Among the findings: Teachers access to ICT hardware both at home and school are at a desirable level. Software access is not much so. ICT application in three areas of education, research and communication was less than the desired level.

  12. SPRAY FOAM IN ACCESSIBLE SPACES:BEST PRACTICES AND CASE STUDIES FOR RETROFIT IN MIXED-HUMID CLIMATE

    Energy Technology Data Exchange (ETDEWEB)

    Christian, Jeffrey E [ORNL; Gant, Kathy [Oak Ridge National Laboratory (ORNL)

    2013-12-01

    Heating and cooling the house is one of the homeowners major expenses. Reducing these costs, saving energy, and creating a healthier, more comfortable indoor environment are good reasons to consider improving the building thermal envelope. Improvements usually consider increasing the amount of insulation, reducing the infiltration of outside air, and controlling moisture in existing buildings. This report describes the use of spray foam materials to insulate, seal, and control moisture. This discussion is limited to treating areas that are accessible. What is accessible, however, can vary depending on the type of renovation. If the building has been gutted or exterior surfaces removed, there are more options. This report will look at areas to consider for spray foam application and discuss the types of spray foams available and their uses. A number of case studies are presented to show the effectiveness of this retrofit in existing houses based on performance data.

  13. Inequalities in Educational Access in Mexico: A Study with Graduates Students of a High Performance Technical High School

    Directory of Open Access Journals (Sweden)

    Fernando Pérez-Santiago

    2016-09-01

    Full Text Available Access to the higher education system in Mexico has been characterized by educational inequalities explained by social and reproductionist currents. The phenomenon occurs in graduate students with a high school diploma and coming from different contexts (social, cultural, economic, institutional and academic ones that create a process of transition far away from equal opportunities. Therefore, the differences due to cultural diversity do not generate equitable access to higher education institutions. The aim of this study was to identify the social, cultural and academic factors affecting the access to or the abandonment of the academic education of students with expectations of entering the higher education system. The research was based on the results obtained from forty technicians who studied at a vocational high school with high academic performance in Mexico, and were supposed to enter the higher level. It was an exploratory descriptive investigation with qualitative approach, using two multiple-choice item questionnaires whose results were analyzed interpretively. The sampling was non-probability, with the technique of “snowball” and “convenience”. The results showed that the level of parents’ schooling, social relations, and academic career of graduates were decisive to enter the higher education; so it can be concluded that the students’ origin generate inequality in educational achievement.

  14. Making Statistical Data More Easily Accessible on the Web Results of the StatSearch Case Study

    CERN Document Server

    Rajman, M; Boynton, I M; Fridlund, B; Fyhrlund, A; Sundgren, B; Lundquist, P; Thelander, H; Wänerskär, M

    2005-01-01

    In this paper we present the results of the StatSearch case study that aimed at providing an enhanced access to statistical data available on the Web. In the scope of this case study we developed a prototype of an information access tool combining a query-based search engine with semi-automated navigation techniques exploiting the hierarchical structuring of the available data. This tool enables a better control of the information retrieval, improving the quality and ease of the access to statistical information. The central part of the presented StatSearch tool consists in the design of an algorithm for automated navigation through a tree-like hierarchical document structure. The algorithm relies on the computation of query related relevance score distributions over the available database to identify the most relevant clusters in the data structure. These most relevant clusters are then proposed to the user for navigation, or, alternatively, are the support for the automated navigation process. Several appro...

  15. Separated Families and Children Who Refuse Access to a Parent. Unit for Child Studies Selected Papers Number 33.

    Science.gov (United States)

    Renouf, Emilia

    On the whole, professionals agree that there is an advantage in both parents having access to the child or children after separation. This paper provides (1) an overview of the controversy over the value of such access; (2) a description of various contexts of access disputes and perspectives involved in the assessment of access situations; (3) a…

  16. Open Access

    Science.gov (United States)

    Suber, Peter

    2012-01-01

    The Internet lets us share perfect copies of our work with a worldwide audience at virtually no cost. We take advantage of this revolutionary opportunity when we make our work "open access": digital, online, free of charge, and free of most copyright and licensing restrictions. Open access is made possible by the Internet and copyright-holder…

  17. EU Accession and Civil Aviation Regimes: Malta and Cyprus as a Case Study

    Science.gov (United States)

    Papatheodorou, Andreas; Busuttil, Louis

    2003-01-01

    Aviation deregulation is usually a challenging and demanding task and accession to the European Union requires that all candidate states should harmonize their legislation in the context of the European Common Aviation Area. Malta and Cyprus, the small Mediterranean island-states to join the EU in 2004, will have to abandon any protectionist policies in favour of their flag-carriers and let them survive in a liberal framework. The paper discusses the implications of this regime change for civil aviation in Malta and Cyprus and in addition to the airline industry, it examines the impacts on the complementary tourism sector. Unless carrying capacity limits are understood, the islands may become victims of successful airline liberalisation. The paper concludes by stressing the need for sustainable development and active policy making. Keywords: carrying capacity, Cyprus, air transport deregulation, Malta, tourism

  18. Cognitive radio policy and regulation techno-economic studies to facilitate dynamic spectrum access

    CERN Document Server

    Holland, Oliver

    2014-01-01

    This book offers a timely reflection on how the proliferation of advanced wireless communications technologies, particularly cognitive radio (CR) can be enabled by thoroughly-considered policy and appropriate regulation. It looks at the prospects of CR from the divergent standpoints of technological development and economic market reality. The book provides a broad survey of various techno-economic and policy aspects of CR development, and provides the reader with an understanding of the complexities involved as well as a toolbox of possible solutions to enable the evolutionary leap towards successful implementation of disruptive CR technology or indeed any other novel wireless technologies. Cognitive Radio Policy and Regulation showcases the original ideas and concepts introduced into the field of CR and dynamic spectrum access policy over nearly four years of work within COST Action IC0905 TERRA, a think-tank with participants from more than 20 countries. The book’s subject matter includes: • deploymen...

  19. Study on Mandatory Access Control in a Secure Database Management System

    Institute of Scientific and Technical Information of China (English)

    2001-01-01

    This paper proposes a security policy model for mandatory access control in class B1 database management system whose level of labeling is tuple. The relation-hierarchical data model is extended to multilevel relation-hierarchical data model. Based on the multilevel relation-hierarchical data model, the concept of upper-lower layer relational integrity is presented after we analyze and eliminate the covert channels caused by the database integrity. Two SQL statements are extended to process polyinstantiation in the multilevel secure environment. The system is based on the multilevel relation-hierarchical data model and is capable of integratively storing and manipulating multilevel complicated objects (e. g., multilevel spatial data) and multilevel conventional data ( e. g., integer. real number and character string).

  20. Out-of-Bounds Array Access Fault Model and Automatic Testing Method Study

    Institute of Scientific and Technical Information of China (English)

    GAO Chuanping; DUAN Miyi; TAN Liqun; GONG Yunzhan

    2007-01-01

    Out-of-bounds array access(OOB) is one of the fault models commonly employed in the objectoriented programming language. At present, the technology of code insertion and optimization is widely used in the world to detect and fix this kind of fault. Although this method can examine some of the faults in OOB programs, it cannot test programs thoroughly, neither to find the faults correctly. The way of code insertion makes the test procedures so inefficient that the test becomes costly and time-consuming. This paper, uses a kind of special static test technology to realize the fault detection in OOB programs. We first establish the fault models in OOB program, and then develop an automatic test tool to detect the faults. Some experiments have exercised and the results show that the method proposed in the paper is efficient and feasible in practical applications.

  1. Understanding differences in access to water fountains and sugar-sweetened beverages in children׳s environments: a pilot study in high and low deprivation neighbourhoods.

    Science.gov (United States)

    Pearson, Amber L; de Latour, Phillip; Kemp, Gabrielle; Findlay, Nohoana; Halim, Angela; Atkinson, Nicola; Chong, Mark; Cameron, Rose; Brown, Courtney; Kim, Grace; Campbell, Paul; Hills, Toby; Jayawant, Aditya; Chae, Matthew; Bhagavan, Chiranth; French, Claire; Jenkin, Gabrielle; Smith, Moira; Signal, Louise

    2014-11-01

    Access to water fountains and sugar-sweetened beverages (SSBs) in children׳s environments may impact on child obesity and may vary with neighbourhood deprivation. Our pilot analyses of access to water fountains and SSBs in Wellington, New Zealand revealed that water fountain access was high in school environments and low in recreational environments. There were also differences in water fountain and SSB access points by neighbourhood deprivation. The methods piloted in this study could be translated in a larger study, more capable of detecting significant differences in access and allowing for more sophisticated analyses. Such future studies may provide important evidence for the improvement of children׳s health and well-being.

  2. Exploring the impact of a decision support intervention on vascular access decisions in chronic hemodialysis patients: study protocol

    Directory of Open Access Journals (Sweden)

    Donnelly Sandra

    2011-02-01

    Full Text Available Abstract Background In patients with Stage 5 Chronic Kidney Disease who require renal replacement therapy a major decision concerns modality choice. However, many patients defer the decision about modality choice or they have an urgent or emergent need of RRT, which results in them starting hemodialysis with a Central Venous Catheter. Thereafter, efforts to help patients make more timely decisions about access choices utilizing education and resource allocation strategies met with limited success resulting in a high prevalent CVC use in Canada. Providing decision support tailored to meet patients' decision making needs may improve this situation. The Registered Nurses Association of Ontario has developed a clinical practice guideline to guide decision support for adults living with Chronic Kidney Disease (Decision Support for Adults with Chronic Kidney Disease. The purpose of this study is to determine the impact of implementing selected recommendations this guideline on priority provincial targets for hemodialysis access in patients with Stage 5 CKD who currently use Central Venous Catheters for vascular access. Methods/Design A non-experimental intervention study with repeated measures will be conducted at St. Michaels Hospital in Toronto, Canada. Decisional conflict about dialysis access choice will be measured using the validated SURE tool, an instrument used to identify decisional conflict. Thereafter a tailored decision support intervention will be implemented. Decisional conflict will be re-measured and compared with baseline scores. Patients and staff will be interviewed to gain an understanding of how useful this intervention was for them and whether it would be feasible to implement more widely. Quantitative data will be analyzed using descriptive and inferential statistics. Statistical significance of difference between means over time for aggregated SURE scores (pre/post will be assessed using a paired t-test. Qualitative analysis

  3. Methodology and Results of the Near-Earth Object (NEO) Human Space Flight (HSF) Accessible Targets Study (NHATS)

    Science.gov (United States)

    Barbee, Brent; Mink, Ronald; Adamo, Daniel

    2011-01-01

    Near-Earth Asteroids (NEAs) have been identified by the current administration as potential destinations for human explorers during the mid-2020s. While the close proximity of these objects' orbits to Earth's orbit creates a risk of highly damaging or catastrophic impacts, it also makes some of these objects particularly accessible to spacecraft departing Earth, and this presents unique opportunities for solar system science and humanity's first ventures beyond cislunar space. Planning such ambitious missions first requires the selection of potentially accessible targets from the growing population of nearly 7,800 NEAs. To accomplish this, NASA is conducting the Near-Earth Object (NEO) Human Space Flight (HSF) Accessible Targets Study (NHATS). Phase I of the NHATS was executed during September of 2010, and Phase II was completed by early March of 2011. The study is ongoing because previously undetected NEAs are being discovered constantly, which has motivated an effort to automate the analysis algorithms in order to provide continuous monitoring of NEA accessibility. The NHATS analysis process consists of a trajectory filter and a minimum maximum estimated size criterion. The trajectory filter employs the method of embedded trajectory grids to compute all possible ballistic round-trip mission trajectories to every NEA in the Jet Propulsion Laboratory (JPL) Small-Body Database (SBDB) and stores all solutions that satisfy the trajectory filter criteria. An NEA must offer at least one qualifying trajectory solution to pass the trajectory filter. The Phase II NHATS filter criteria were purposely chosen to be highly inclusive, requiring Earth departure date between January 1st, 2015 and December 31st, 2040, total round-trip flight time = 8 days, Earth departure C(sub 3) energy = 30 m. This corresponds to an absolute magnitude H = 30 m. The distributions of osculating heliocentric orbital semi-major axis (a), eccentricity (e), and inclination (i), for those 590 NEAs are

  4. A review of potable water accessibility and sustainability issues in developing countries - case study of Uganda.

    Science.gov (United States)

    Nayebare, Shedrack R; Wilson, Lloyd R; Carpenter, David O; Dziewulski, David M; Kannan, Kurunthachalam

    2014-01-01

    Providing sources of sustainable and quality potable water in Uganda is a significant public health issue. This project aimed at identifying and prioritizing possible actions on how sustainable high quality potable water in Uganda's water supply systems could be achieved. In that respect, a review of both the current water supply systems and government programs on drinking water in Uganda was completed. Aspects of quantity, quality, treatment methods, infrastructure, storage and distribution of water for different water systems were evaluated and compared with the existing water supply systems in the U.S., Latin America and the Caribbean, for purposes of generating feasible recommendations and opportunities for improvement. Uganda utilizes surface water, groundwater, and rainwater sources for consumption. Surface water covers 15.4% of the land area and serves both urban and rural populations. Lake Victoria contributes about 85% of the total fresh surface water. Potable water quality is negatively affected by the following factors: disposal of sewage and industrial effluents, agricultural pesticides and fertilizers, and surface run-offs during heavy rains. The total renewable groundwater resources in Uganda are estimated to be 29 million m3/year with about 20,000 boreholes, 3000 shallow-wells and 200,000 springs, serving more than 80% of the rural and slum communities. Mean annual rainfall in Uganda ranges from 500 mm to 2500 mm. Groundwater and rainwater quality is mainly affected by poor sanitation and unhygienic practices. There are significant regional variations in the accessibility of potable water, with the Northeastern region having the least amount of potable water from all sources. Uganda still lags behind in potable water resource development. Priorities should be placed mainly on measures available for improvement of groundwater and rainwater resource utilization, protection of watersheds, health education, improved water treatment methods and

  5. A qualitative study analyzing access to physical rehabilitation for traffic accident victims with severe disability in Brazil.

    Science.gov (United States)

    Sousa, Kelienny de Meneses; Oliveira, Wagner Ivan Fonsêca de; Melo, Laiza Oliveira Mendes de; Alves, Emanuel Augusto; Piuvezam, Grasiela; Gama, Zenewton André da Silva

    2017-03-01

    Purpose To identify access barriers to physical rehabilitation for traffic accident (TA) victims with severe disability and build a theoretical model to provide guidance towards the improvement of these services. Methods Qualitative research carried out in the city of Natal (Northeast Brazil), with semi-structured interviews with 120 subjects (19 key informer health professionals and 101 TA victims) identified in a database made available by the emergency hospital. The interviews were analyzed using Alceste software, version 4.9. Results The main barriers present in the interviews were: (1) related to services: bureaucratic administrative practises, low offer of rehabilitation services, insufficient information on rehabilitation, lack of guidelines that integrate hospital and ambulatory care and (2) related to patients: financial difficulties, functional limitations, geographic distance, little information on health, association with low education levels and disbelief in the system and in rehabilitation. Conclusion The numerous access barriers were presented in a theoretical model with causes related to organizational structure, processes of care, professionals and patients. This model must be tested by health policy-makers and managers to improve the quality of physical rehabilitation and avoid unnecessary prolongation of the suffering and disability experienced by TA survivors. Implications for rehabilitation Traffic accidents (TAs) are a global health dilemma that demands integrality of preventive actions, pre-hospital and hospital care and physical rehabilitation (PR). This study lays the foundation for improving access to PR for TA survivors, an issue of quality of care that results in preventable disabilities. The words of the patients interviewed reveal the suffering of victims, which is often invisible to society and given low priority by health policies that relegate PR to a second plan ahead of prevention and urgent care. A theoretical model of the

  6. How modification of accessible lysines to phenylalanine modulates the structural and functional properties of horseradish peroxidase: a simulation study.

    Directory of Open Access Journals (Sweden)

    Leila Navapour

    Full Text Available Horseradish Peroxidase (HRP is one of the most studied peroxidases and a great number of chemical modifications and genetic manipulations have been carried out on its surface accessible residues to improve its stability and catalytic efficiency necessary for biotechnological applications. Most of the stabilized derivatives of HRP reported to date have involved chemical or genetic modifications of three surface-exposed lysines (K174, K232 and K241. In this computational study, we altered these lysines to phenylalanine residues to model those chemical modifications or genetic manipulations in which these positively charged lysines are converted to aromatic hydrophobic residues. Simulation results implied that upon these substitutions, the protein structure becomes less flexible. Stability gains are likely to be achieved due to the increased number of stable hydrogen bonds, improved heme-protein interactions and more integrated proximal Ca2+ binding pocket. We also found a new persistent hydrogen bond between the protein moiety (F174 and the heme prosthetic group as well as two stitching hydrogen bonds between the connecting loops GH and F'F″ in mutated HRP. However, detailed analysis of functionally related structural properties and dynamical features suggests reduced reactivity of the enzyme toward its substrates. Molecular dynamics simulations showed that substitutions narrow the bottle neck entry of peroxide substrate access channel and reduce the surface accessibility of the distal histidine (H42 and heme prosthetic group to the peroxide and aromatic substrates, respectively. Results also demonstrated that the area and volume of the aromatic-substrate binding pocket are significantly decreased upon modifications. Moreover, the hydrophobic patch functioning as a binding site or trap for reducing aromatic substrates is shrunk in mutated enzyme. Together, the results of this simulation study could provide possible structural clues to explain

  7. How modification of accessible lysines to phenylalanine modulates the structural and functional properties of horseradish peroxidase: a simulation study.

    Science.gov (United States)

    Navapour, Leila; Mogharrab, Navid; Amininasab, Mehriar

    2014-01-01

    Horseradish Peroxidase (HRP) is one of the most studied peroxidases and a great number of chemical modifications and genetic manipulations have been carried out on its surface accessible residues to improve its stability and catalytic efficiency necessary for biotechnological applications. Most of the stabilized derivatives of HRP reported to date have involved chemical or genetic modifications of three surface-exposed lysines (K174, K232 and K241). In this computational study, we altered these lysines to phenylalanine residues to model those chemical modifications or genetic manipulations in which these positively charged lysines are converted to aromatic hydrophobic residues. Simulation results implied that upon these substitutions, the protein structure becomes less flexible. Stability gains are likely to be achieved due to the increased number of stable hydrogen bonds, improved heme-protein interactions and more integrated proximal Ca2+ binding pocket. We also found a new persistent hydrogen bond between the protein moiety (F174) and the heme prosthetic group as well as two stitching hydrogen bonds between the connecting loops GH and F'F″ in mutated HRP. However, detailed analysis of functionally related structural properties and dynamical features suggests reduced reactivity of the enzyme toward its substrates. Molecular dynamics simulations showed that substitutions narrow the bottle neck entry of peroxide substrate access channel and reduce the surface accessibility of the distal histidine (H42) and heme prosthetic group to the peroxide and aromatic substrates, respectively. Results also demonstrated that the area and volume of the aromatic-substrate binding pocket are significantly decreased upon modifications. Moreover, the hydrophobic patch functioning as a binding site or trap for reducing aromatic substrates is shrunk in mutated enzyme. Together, the results of this simulation study could provide possible structural clues to explain those experimental

  8. Confirmation Bias and the Open Access Advantage: Some Methodological Suggestions for the Davis Citation Study

    CERN Document Server

    Harnad, Stevan

    2008-01-01

    Davis (2008) analyzes citations from 2004-2007 in 11 biomedical journals. 15% of authors paid to make them Open Access (OA). The outcome is a significant OA citation Advantage, but a small one (21%). The author infers that the OA advantage has been shrinking yearly, but the data suggest the opposite. Further analyses are necessary: (1) Not just author-choice (paid) OA but Free OA self-archiving needs to be taken into account rather than being counted as non-OA. (2) proportion of OA articles per journal per year needs to be reported and taken into account. (3) The Journal Impact Factor and the relation between the size of the OA Advantage article 'citation-bracket' need to be taken into account. (4) The sample-size for the highest-impact, largest-sample journal analyzed, PNAS, is restricted and excluded from some of the analyses. The full PNAS dataset is needed. (5) The interaction between OA and time, 2004-2007, is based on retrospective data from a June 2008 total cumulative citation count. The dates of both...

  9. Studi Perancangan Jaringan Worldwide Interoperability For Microwave Access (Wimax Di Area Banyumas

    Directory of Open Access Journals (Sweden)

    Alfin Hikmaturokhman

    2012-05-01

    Full Text Available At present the need for higher internet connection along with the age which is growing so fast. Then there is the latest breakthrough in telecomunications that is WiMAX technology is a wireless broadband technology reffered the IEEE 802.16 standard. WiMAX technology comes with a network of excellence in aspects of data access speed, wide area coverage and the presence of QoS is can allocate frequencies in accordance with user needs using OFDM technology. WiMAX technology can reach area far as 50 kilometers, also allows user equipment (customer premise equipment or CPE to get a broadband connection without having a direct path (non line of sight, NLOS to the base station (BS and provides a total data rate of up to 75 Mbps. Results of this Final project assumed that the area where will be design is Banyumas district. Then final project results of the PRX -100.31 dB; the Total Margin of 23.56 dB; Path los of 134.5 dB; gamma (? of 4.375; Frequency correction factor (?PLf of 0,36; antenna correction factor (?PLh is -3,25; Radius Cells (d is approximately 1995 meters; area of cell is at 10,34010495 km2 and the number of cells 133

  10. Academic community about copyright related with open access. Case study at Transilvania University

    Directory of Open Access Journals (Sweden)

    Bârsan, M. I.

    2012-01-01

    Full Text Available The movement for open access to scientific information aims to transform education and research through the provision, free of charge, of the literature in scientific journals, to all researchers, regardless of the country they carry out their activity in or the institution they are affiliated to, while observing the natural award and quotation rules. In order to have his/her article published in a quality scientific journal, the author is almost always requested to transfer the copyrights to the respective journal's editor. The editor thus becomes the only one authorized to decide if and in what way the text is to be published after the initial issue - e.g., through its inclusion in a scientific database. The paper It considers the claims for copyright ownership in research papers by universities, academics, and publishers by drawing on the literature, a survey of academic authors from Transilvania University. There were analysed concerning the professors' opinion on the AUTHOR – UNIVERSITY – EDITOR relationship. The sample was considerate with academic staff from Law. Engineering, Literature and Economic Science Faculties.

  11. Access Control List Technology Studying and Application%ACL技术研究及应用

    Institute of Scientific and Technical Information of China (English)

    杨梅; 杨平利; 宫殿庆

    2011-01-01

    Access control list (ACL) refers to the dictation list of router joint, which forms an orderly condition collection by a group of permit an deny sentences to control the data package of controlling the port turnover. ACL is a technology, which uses data stream classification and filtration to improve network's security. ACL is also a service level agreement ( SLA), which is used to enhance the quality of service in network. Introduce in detail about ACL's conception, classification, principle and function. The typical applications are discussed in some cases, which display the method of how to use ACL. It also presents the matching principle and some advice to reduce making mistakes when use the ACL.%访问控制列表是路由交换设备的一组条件控制指令列表,是实现包过滤技术的核心内容,它是一种数据流分类和过滤技术,在网络安全中发挥着重要的作用;访问控制列表也是一种服务级别协定,用于支持和提高网络的服务质量.首先介绍了访问控制列表的定义、分类、工作原理和功能,其次以实例的方式给出了访问控制列表的几种典型应用,通过应用实例说明了访问控制列表在网络安全中具体使用方法和特点,最后给配置使用时的要点、规则和使用时的建议.

  12. "You know your own fistula, it becomes a part of you"--Patient perspectives on vascular access: A semistructured interview study.

    Science.gov (United States)

    Taylor, Matthew J; Hanson, Camilla S; Casey, Jordan R; Craig, Jonathan C; Harris, David; Tong, Allison

    2016-01-01

    The success of hemodialysis depends on functional vascular access but such an invasive, semipermanent intervention can be confronting for patients. Vascular access complications are potentially life threatening and reduce treatment satisfaction and quality of life. This study aims to describe patient perspectives on vascular access. Face-to-face, semistructured interviews were conducted with 26 adult patients receiving hemodialysis with any form of vascular access at two dialysis units in Australia. The transcripts were analyzed using thematic analysis. We identified five major themes describing patient perspectives on vascular access: developing mental fortitude for access (accepting necessity for survival, self-advocacy, experiential confidence and competency, dependency on others, gaining vascular knowledge), device intrusiveness on the body (restricting normal function, finding compensatory solutions, bodily invasion, confronting appearance), inhibiting pain (aversion to surgery, persisting needle anxieties), exposure to dire health consequences (resigning to inevitable failure, anticipating serious complications, technological skepticism, wary of medical incompetence), and imposing burdens (generating additional expenses, encumbering family members). Patients with a vascular access rely on a precarious lifeline, which is confronting, intrusive, and burdensome. Some develop mental resilience to cope with the pain and invasiveness of vascular access. The results suggest that more attention to address needle anxieties, self-advocacy, lifestyle disruption, fear of complications, and concern for caregiver burden may improve treatment satisfaction and outcomes for patients on hemodialysis.

  13. Accurate guidance for percutaneous access to a specific target in soft tissues: preclinical study of computer-assisted pericardiocentesis.

    Science.gov (United States)

    Chavanon, O; Barbe, C; Troccaz, J; Carrat, L; Ribuot, C; Noirclerc, M; Maitrasse, B; Blin, D

    1999-06-01

    In the field of percutaneous access to soft tissues, our project was to improve classical pericardiocentesis by performing accurate guidance to a selected target, according to a model of the pericardial effusion acquired through three-dimensional (3D) data recording. Required hardware is an echocardiographic device and a needle, both linked to a 3D localizer, and a computer. After acquiring echographic data, a modeling procedure allows definition of the optimal puncture strategy, taking into consideration the mobility of the heart, by determining a stable region, whatever the period of the cardiac cycle. A passive guidance system is then used to reach the planned target accurately, generally a site in the middle of the stable region. After validation on a dynamic phantom and a feasibility study in dogs, an accuracy and reliability analysis protocol was realized on pigs with experimental pericardial effusion. Ten consecutive successful punctures using various trajectories were performed on eight pigs. Nonbloody liquid was collected from pericardial effusions in the stable region (5 to 9 mm wide) within 10 to 15 minutes from echographic acquisition to drainage. Accuracy of at least 2.5 mm was demonstrated. This study demonstrates the feasibility of computer-assisted pericardiocentesis. Beyond the simple improvement of the current technique, this method could be a new way to reach the heart or a new tool for percutaneous access and image-guided puncture of soft tissues. Further investigation will be necessary before routine human application.

  14. Are transnational tobacco companies' market access strategies linked to economic development models? A case study of South Korea.

    Science.gov (United States)

    Lee, Sungkyu; Holden, Chris; Lee, Kelley

    2013-01-01

    Transnational tobacco companies (TTCs) have used varied strategies to access previously closed markets. Using TTCs' efforts to enter the South Korean market from the late 1980s as a case study, this article asks whether there are common patterns in these strategies that relate to the broader economic development models adopted by targeted countries. An analytical review of the existing literature on TTCs' efforts to access emerging markets was conducted to develop hypotheses relating TTCs' strategies to countries' economic development models. A case study of Korea was then undertaken based on analysis of internal tobacco industry documents. Findings were consistent with the hypothesis that TTCs' strategies in Korea were linked to Korea's export-oriented economic development model and its hostile attitude towards foreign investment. A fuller understanding of TTCs' strategies for expansion globally can be derived by locating them within the economic development models of specific countries or regions. Of foremost importance is the need for governments to carefully balance economic and public health policies when considering liberalisation.

  15. Microchannel arrays with improved accessibility and use for cell studies and emulsification

    Science.gov (United States)

    Kikuchi, Yuji; Kikuchi, Hiroko E.; Kuboki, Yoshinori; Nakajima, Mitsutoshi

    2000-03-01

    Arrays of microgrooves (groove width; 2, 3, 4, 5, 6, 7, 8, 10, 12, and 14 micrometer, groove interval; width x3, x10, and x20, one size and interval per chip) each connecting a center well and a side edge of a silicon substrate were created by photolithography and anisotropic wet etching. A penetrating hole was made by sand blast at the substrate center for the access to the center well. By tightly covering the substrate surface with a glass plate, the microgroove arrays were converted to microchannel arrays having one ends open at the side edges of the substrate. These microchannel arrays were used for cell trapping for microinjection and also used for emulsification. Poplar (Populus alba) protoplasts were used for the test of cell trapping. Cells showed a very large variation in size and irregularity in shape, and, furthermore, the protoplast preparation contained a number of cell membrane fragments and chloroplasts. Despite the cell size and shape variations and obstruction by the admixtures, many cells could be trapped by aspiration at the channel ends because of their openness to the outside free space and also their large multiplicity in parallel. The free space outside the side of the substrate allowed a free manipulation of a glass micropipette under microscopic observation using transmitted illumination. The microscopic observation direction nearly perpendicular to the movement directions of the micropipette further allowed the movement of the pipette tip nearly always in focus. These led to an easy pointing and puncturing. In addition, the cell trapping points in a line made successive approach to adjacent cells easier. Soybean oil containing 1.5 wt% polyoxyethylene(20)sorbitan monoolete as a surfactant was forced to flow into physiological saline filling the outside of the substrate through the microchannels. Regularly sized oil particles were created by this process with a variation coefficient (S.D./mean) 16% of their diameter. This variation, which is

  16. Access to CD4 Testing for Rural HIV Patients: Findings from a Cohort Study in Zimbabwe.

    Directory of Open Access Journals (Sweden)

    Florian Vogt

    Full Text Available CD4 cell count measurement remains an important diagnostic tool for HIV care in developing countries. Insufficient laboratory capacity in rural Sub-Saharan Africa is frequently mentioned but data on the impact at an individual patient level are lacking. Urban-rural discrepancies in CD4 testing have not been quantified to date. Such evidence is crucial for public health planning and to justify new yet more expensive diagnostic procedures that could circumvent access constraints in rural areas.To compare CD4 testing among rural and urban HIV patients during the first year of treatment.Records from 2,145 HIV positive adult patients from a Médecins sans Frontières (Doctors without Borders HIV project in Beitbridge, Zimbabwe, during 2011 and 2012 were used for a retrospective cohort analysis. Covariate-adjusted risk ratios were calculated to estimate the effects of area of residence on CD4 testing at treatment initiation, six and 12 months among rural and urban patients.While the proportion of HIV patients returning for medical consultations at six and 12 months decreased at a similar rate in both patient groups, CD4 testing during consultations dropped to 21% and 8% for urban, and 2% and 1% for rural patients at six and 12 months, respectively. Risk ratios for missing CD4 testing were 0.8 (95% CI 0.7-0.9, 9.2 (95% CI 5.5-15.3, and 7.6 (95% 3.7-17.1 comparing rural versus urban patients at treatment initiation, six and 12 months, respectively.CD4 testing was low overall, and particularly poor in rural patients. Difficulties with specimen transportation were probably a major factor underlying this difference and requires new diagnostic approaches. Our findings point to severe health system constraints in providing CD4 testing overall that need to be addressed if effective monitoring of HIV patients is to be achieved, whether by alternative CD4 diagnostics or newly-recommended routine viral load testing.

  17. Car travel time and accessibility by bus to general practitioner services: a study using patient registers and GIS.

    Science.gov (United States)

    Lovett, Andrew; Haynes, Robin; Sünnenberg, Gisela; Gale, Susan

    2002-07-01

    Accessibility to general practitioner (GP) surgeries was investigated in a population study of East Anglia (Cambridgeshire, Norfolk and Suffolk) in the United Kingdom. Information from patient registers was combined with details of general practitioner surgery locations, road network characteristics, bus routes and community transport services, and a geographical information system (GIS) was used to calculate measures of accessibility to surgeries by public and private transport. Outcome measures included car travel times and indicators of the extent to which bus services could be used to visit GP surgeries. These variables were aggregated for wards or parishes and then compared with socio-economic characteristics of the populations living in those areas. The results indicated that only 10% of residents faced a car journey of more than 10 min to a GP. Some 13% of the population could not reach general medical services by daily bus. For 5% of the population, the car journey to the nearest surgery was longer than 10 min and there was no suitable bus service each weekday. In the remoter rural parishes, the lowest levels of personal mobility and the highest health needs indicators were found in the places with no daytime bus service each weekday and no community transport. The overall extent of accessibility problems and the existence of inverse care law effects in some rural localities have implications for the NHS, which aims to provide an equitable service to people wherever they live. The research also demonstrates the potential of patient registers and GIS as research and planning tools, though the practical difficulties of using these data sources and techniques should not be underestimated.

  18. Accessible Knowledge - Knowledge on Accessibility

    DEFF Research Database (Denmark)

    Kirkeby, Inge Mette

    2015-01-01

    Although serious efforts are made internationally and nationally, it is a slow process to make our physical environment accessible. In the actual design process, architects play a major role. But what kinds of knowledge, including research-based knowledge, do practicing architects make use of when...... designing accessible environments? The answer to the question is crucially important since it affects how knowledge is distributed and how accessibility can be ensured. In order to get first-hand knowledge about the design process and the sources from which they gain knowledge, 11 qualitative interviews...... were conducted with architects with experience of designing for accessibility. The analysis draws on two theoretical distinctions. The first is research-based knowledge versus knowledge used by architects. The second is context-independent knowledge versus context-dependent knowledge. The practitioners...

  19. Estudio de la corrosión en caliente de la aleación aisi-sae 304h, mediante la técnica de espectroscopía de impedancia electroquímica (eis

    Directory of Open Access Journals (Sweden)

    JOSÉ TRISTANCHO

    2007-01-01

    Full Text Available La corrosión en caliente es uno de los mayores problemas que se presentan en la industria generadora de energía eléctrica, especialmente en los componentes que conforman los equipos generadores de vapor (calderas. El fenómeno corrosivo que presentan las sales fundidas, es por lo menos parcialmente, de naturaleza electroquímica y por lo tanto, puede ser estudiado empleando la técnica de impedancia electroquímica (EIS, adaptada a las condiciones especiales de temperatura y composición del medio corrosivo. En esta investigación se evalúo el comportamiento del acero AISI304H expuesto a un electrolito compuesto de 80%V2O5 – 20%Na2SO4 fundido, en un intervalo de temperatura comprendido entre 550ºC y 700ºC

  20. Open access

    CERN Document Server

    Suber, Peter

    2012-01-01

    The Internet lets us share perfect copies of our work with a worldwide audience at virtually no cost. We take advantage of this revolutionary opportunity when we make our work "open access": digital, online, free of charge, and free of most copyright and licensing restrictions. Open access is made possible by the Internet and copyright-holder consent, and many authors, musicians, filmmakers, and other creators who depend on royalties are understandably unwilling to give their consent. But for 350 years, scholars have written peer-reviewed journal articles for impact, not for money, and are free to consent to open access without losing revenue. In this concise introduction, Peter Suber tells us what open access is and isn't, how it benefits authors and readers of research, how we pay for it, how it avoids copyright problems, how it has moved from the periphery to the mainstream, and what its future may hold. Distilling a decade of Suber's influential writing and thinking about open access, this is the indispe...

  1. Análisis comparativo de la cinética de deshidratación Osmótica y por Flujo de Aire Caliente de la Piña (Ananas Comosus, variedad Cayena lisa

    Directory of Open Access Journals (Sweden)

    Annia García Pereira

    2013-01-01

    Full Text Available Los procesos tecnológicos de deshidratación han sido algunos de los métodos más utilizados para la conservación de frutas y vegetales. El presente trabajo tiene como objetivo analizar comparativamente la cinética de la deshidratación Osmótica (DO y por Flujo de Aire Caliente (DAC de la Piña (Ananas Comosus, variedad Cayena lisa para la Agroindustria. Durante el análisis se determinaron las propiedades físico-mecánicas de las frutas frescas y de los cubos deshidratadas (masa, firmeza, talla, pH, y contenido de sólidos solubles (SSC, posteriormente las frutas fueron troceadas en cubos de 1 x 5 ±0.02 cm para ser sometidas a tratamientos de Deshidratación Osmótica (DO (60 °C durante 10 h y por Deshidratación por Flujo de Aire Caliente (DAC (60°C durante 5 h. Se monitoreó además la variación de la masa, la firmeza y el porcentaje de pérdida de peso durante ambos procesos. Para el procesamiento estadístico de los datos se utiliza el software especializado Statgraphics Plus en su versión 5.1. Como resultado se obtuvo que la variabilidad alcanzada a partir de la diferencia entre los valores iniciales y finales de la masa, firmeza y el aumento del porcentaje de pérdida de peso fue inferior para la fruta sometida al proceso tecnológico de DO con valores de 49,4; 86 y 64,17%, que para la obtenida por DAC con valores 80; 88,3; y 80%, respectivamente, resultando también el método que mayor variabilidad aportó entre las propiedades estudiadas.

  2. Erotized, AIDS-HIV information on public-access television: a study of obscenity, state censorship and cultural resistance.

    Science.gov (United States)

    Lukenbill, W B

    1998-06-01

    This study analyzes court records of a county-level obscenity trial in Austin, Texas, and the appeal of the guilty verdict beginning with a Texas appellate court up to the U.S. Supreme Court of two individuals who broadcast erotized AIDS and HIV safer sex information on a public-access cable television. The trial and appellate court decisions are reviewed in terms of argument themes, and the nature of sexual value controversy is outlined. Erotic materials often conflict with broad-based sexual and community values, and providing erotized HIV and AIDS information products can be a form of radical political action designed to force societal change. This study raises question as to how this trial and this type of informational product might affect the programs and activities of information resource centers, community-based organizations, libraries, and the overall mission of public health education.

  3. Self-Access Language Learning Programme: The Case of the English Language Voluntary Intensive Independent Catch-up Study

    Directory of Open Access Journals (Sweden)

    Salomi Papadima-Sophocleous

    2013-06-01

    Full Text Available This study investigated whether and to what extent an English Language Voluntary Intensive Independent Catch-up Study (ELVIICS, a Self-Access Language Learning (SALL programme, was effective in helping first-year Greek-Cypriot students fill in the gaps in their English language learning and come closer to the required language competence level of the Common European Framework of Reference (CEFR B1 level. It also examined students’ perceptions of such learning. The students followed the ELVIICS at their own pace, time and space until they felt they had reached the aimed level. Analysis of the achievement test results revealed that students’ language competence improved and reached the required level. Additional quantitative data also revealed that students felt ELVIICS also helped them improve their self-confidence, computer skills and autonomous learning. Moreover, students claimed that ELVIICS assisted them in getting through and successfully completing their compulsory course.

  4. Access French

    CERN Document Server

    Grosz, Bernard

    2014-01-01

    Access is the major new language series designed with the needs of today's generation of students firmly in mind. Whether learning for leisure or business purposes or working towards a curriculum qualification, Access French is specially designed for adults of all ages and gives students a thorough grounding in all the skills required to understand, speak, read and write contemporary French from scratch. The coursebook consists of 10 units covering different topic areas, each of which includes Language Focus panels explaining the structures covered and a comprehensive glossary. Learning tips

  5. Guarantee of property right in open access systems. Legal study of property right of electric utilities and expropriation; Open access ni okeru zaisanken no hosho. Denki jigyo ni okeru zaisanken to shuyo ni kansuru kento

    Energy Technology Data Exchange (ETDEWEB)

    Maruyama, M. [Central Research Institute of Electric Power Industry, Tokyo (Japan)

    1996-03-01

    A study has been made about the relationship between open access, which has now become an important element of the electric utilities renovation efforts in the U.S. and Europe, and property right. The meaning of open access is to guarantee free access to suppliers by securing fair competition between them through separation of the vertical integration in power transmission and opening the transmission network to final customers. In case of Japan, the U.S., and Germany where private sector suppliers run electric utilities, however, a need arises to consider the property right that such suppliers enjoy as guaranteed by their Constitutions. The outcomes of discussions made in Germany and the State of California were complied, and some conclusions were reached. It constitutes an infringement of their property right for the authorities to order them to allow open access without compensation. In case the authorities use expropriation for the same purpose, they have to make it known clearly that the separation and opening is to the benefit of the public and must compensate fully for their action. There is no problem in giving the authorities the power to force the electric utilities to sign a wheeling contract in case the latter unlawfully rejects to sign one proposed by a wheeling-requesting party. 24 refs., 3 figs., 4 tabs.

  6. Ethnic minority, young onset, rare dementia type, depression: A case study of a Muslim male accessing UK dementia health and social care services.

    Science.gov (United States)

    Regan, Jemma L

    2016-07-01

    A case study comprised of formal interviews, formal observations and informal discussions investigated the motivations and experiences accessing dementia care health and social care services for a Muslim, Pakistani male with dementia. Motivations derived from 'desperation' and an inability to access support from family or religious community. Experiences of accessing services were mostly negative. Dementia services were ill-informed about how to support persons with young onset dementia, with pre-existing mental health conditions, from an ethnic minority. Education and training to remove barriers to all dementia care services is required for persons with dementia, their families and within dementia services and religious communities.

  7. Hemodialysis access - self care

    Science.gov (United States)

    Kidney failure - chronic-hemodialysis access; Renal failure - chronic-hemodialysis access; Chronic renal insufficiency - hemodialysis access; Chronic kidney failure - hemodialysis access; Chronic renal failure - ...

  8. Acceptability – a neglected dimension of access to health care: findings from a study on childhood convulsions in rural Tanzania

    Directory of Open Access Journals (Sweden)

    Dillip Angel

    2012-05-01

    Full Text Available Abstract Background Acceptability is a poorly conceptualized dimension of access to health care. Using a study on childhood convulsion in rural Tanzania, we examined social acceptability from a user perspective. The study design is based on the premise that a match between health providers’ and clients’ understanding of disease is an important dimension of social acceptability, especially in trans-cultural communication, for example if childhood convulsions are not linked with malaria and local treatment practices are mostly preferred. The study was linked to health interventions with the objective of bridging the gap between local and biomedical understanding of convulsions. Methods The study combined classical ethnography with the cultural epidemiology approach using EMIC (Explanatory Model Interview Catalogue tool. EMIC interviews were conducted in a 2007/08 convulsion study (n = 88 and results were compared with those of an earlier 2004/06 convulsion study (n = 135. Earlier studies on convulsion in the area were also examined to explore longer-term changes in treatment practices. Results The match between local and biomedical understanding of convulsions was already high in the 2004/06 study. Specific improvements were noted in form of (1 46% point increase among those who reported use of mosquito nets to prevent convulsion (2 13% point decrease among caregivers who associated convulsion with ‘evil eye and sorcery’, 3 14% point increase in prompt use of health facility and 416% point decrease among those who did not use health facility at all. Such changes can be partly attributed to interventions which explicitly aimed at increasing the match between local and biomedical understanding of malaria. Caregivers, mostly mothers, did not seek advice on where to take an ill child. This indicates that treatment at health facility has become socially acceptable for severe febrile with convulsion. Conclusion As an important dimension

  9. Differences in the Access to Sterilization between Women Living and Not Living with HIV: Results from the GENIH Study, Brazil

    Science.gov (United States)

    Cabral, Cristiane da Silva; do Lago, Tania di Giacomo; Pinho, Adriana de Araujo

    2016-01-01

    Background In many countries, young women of reproductive age have been especially affected by the HIV epidemic, which have fostered research to better understand how HIV infection influences and shapes women´s fertility and reproductive and sexual decisions. In Brazil, few studies have focused on the impact of the HIV epidemic on contraceptive choices among women living with HIV (WLHIV). Objective This study evaluates the impact HIV infection may have in the access to female sterilization in Brazil, using a time-to-event analysis. Methods A cross-sectional quantitative study (GENIH study) was conducted between February 2013 and April 2014 in the city of São Paulo, comparing two probabilistic samples of 975 WLHIV and 1,003 women not living with HIV (WNLHIV) aged 18 to 49. Sexual and reproductive data was collected retrospectively in order to reconstruct women's reproductive trajectories. Given the objectives of this study, the analysis was restricted to women with parity one or more and, in case of WLHIV, to those sterilized after HIV diagnosis and not infected through vertical transmission. The final sample analysis included 683 WNLHIV and 690 WLHIV. A series of multivariable-adjusted Cox models estimated the probability of being sterilized after HIV diagnosis, compared with WNLHIV. Models were adjusted for schooling, race/color, and stratified by parity at last delivery (1–2, 3+). Hazard ratios were calculated for female sterilization, and separately for interval and postpartum procedures (performed in conjunction with caesarean section or immediately after vaginal delivery). Additionally, information regarding unmet demand for female sterilization was also explored. Findings No statistical difference in the overall risk of sterilization between WLHIV and WNLHIV in the two parity-related groups is observed: HR = 0.88 (0.54–1.43) and 0.94 (0.69–1.29), respectively, among women with 1–2 children and those with three and more. However, significant

  10. Effect of screw access hole preparation on fracture load of implant-supported zirconia-based crowns: an in vitro study.

    Science.gov (United States)

    Mokhtarpour, Hadi; Eftekhar Ashtiani, Reza; Mahshid, Minoo; Tabatabaian, Farhad; Alikhasi, Marzieh

    2016-01-01

    Background. Fracture load of implant-supported restorations is an important factor in clinical success. This study evaluated the effect of two techniques for screw access hole preparation on the fracture load of cement-screw-retained implant-supported zirconia-based crowns. Methods. Thirty similar cement-screw-retained implant-supported zirconia-based maxillary central incisor crowns were evaluated in three groups of 10. Group NH: with no screw access holes for the control; Group HBS: with screw access holes prepared with a machine before zirconia sintering; Group HAS: with screw access holes prepared manually after zirconia sintering. In group HBS, the access holes were virtually designed and prepared by a computer-assisted design/computer-assisted manufacturing system. In group HAS, the access holes were manually prepared after zirconia sintering using a diamond bur. The dimensions of the screw access holes were equal in both groups. The crowns were cemented onto same-size abutments and were then subjected to thermocycling. The fracture load values of the crowns were measured using a universal testing machine. Data were analyzed with ANOVA and Tukey test (P zirconia-based crowns decreased the fracture load.

  11. Effect of screw access hole preparation on fracture load of implant-supported zirconia-based crowns: an in vitro study

    Science.gov (United States)

    Mokhtarpour, Hadi; Eftekhar Ashtiani, Reza; Mahshid, Minoo; Tabatabaian, Farhad; Alikhasi, Marzieh

    2016-01-01

    Background. Fracture load of implant-supported restorations is an important factor in clinical success. This study evaluated the effect of two techniques for screw access hole preparation on the fracture load of cement-screw-retained implant-supported zirconia-based crowns. Methods. Thirty similar cement-screw-retained implant-supported zirconia-based maxillary central incisor crowns were evaluated in three groups of 10. Group NH: with no screw access holes for the control; Group HBS: with screw access holes prepared with a machine before zirconia sintering; Group HAS: with screw access holes prepared manually after zirconia sintering. In group HBS, the access holes were virtually designed and prepared by a computer-assisted design/computer-assisted manufacturing system. In group HAS, the access holes were manually prepared after zirconia sintering using a diamond bur. The dimensions of the screw access holes were equal in both groups. The crowns were cemented onto same-size abutments and were then subjected to thermocycling. The fracture load values of the crowns were measured using a universal testing machine. Data were analyzed with ANOVA and Tukey test (P zirconia-based crowns decreased the fracture load. PMID:27651885

  12. Access, Astronomy and Science Fiction. A Case Study in Curriculum Design

    Science.gov (United States)

    Saunders, Danny; Brake, Mark; Griffiths, Martin; Thornton, Rosi

    2004-01-01

    It is argued that a positive response to lifelong learning policies involves the use of imaginative curriculum design in order to attract learners from disadvantaged backgrounds who are otherwise alienated from higher education. In this article a case study is presented based on the popularity of science fiction within popular culture, beginning…

  13. Collaborating to increase access to clinical and educational resources for surgery: a case study.

    Science.gov (United States)

    Tomasko, Jonathan M; Adams, Nancy E; Garritano, Frank G; Santos, Mary C; Dillon, Peter W

    2014-01-01

    A case study is described in which collaborations between a Department of Surgery, a Department of Information Technology, and an academic health sciences library resulted in the development of an electronic surgical library available at the bedside, the deployment of tablet devices for surgery residents, and implementation of a tablet-friendly user interface for the institution's electronic medical record.

  14. Image Retrieval: Theoretical Analysis and Empirical User Studies on Accessing Information in Images.

    Science.gov (United States)

    Ornager, Susanne

    1997-01-01

    Discusses indexing and retrieval for effective searches of digitized images. Reports on an empirical study about criteria for analysis and indexing digitized images, and the different types of user queries done in newspaper image archives in Denmark. Concludes that it is necessary that the indexing represent both a factual and an expressional…

  15. Accessing best practice resources using mobile technology in an undergraduate nursing program: a feasibility study.

    Science.gov (United States)

    Mann, Elizabeth G; Medves, Jennifer; Vandenkerkhof, Elizabeth G

    2015-03-01

    Mobile technology presents new opportunities for nursing education and ultimately the provision of nursing care. The aim of this study was to explore the utility of mobile technology in undergraduate nursing education. In this evaluation study, undergraduate nursing students were provided with iPod Touch devices containing best practice guidelines. Computer self-efficacy was assessed, and the Theory of Planned Behavior was used to identify potential predictors of the use of mobile technology. Questionnaires were completed at baseline (n = 33) and postimplementation (n = 23). Feedback on feasibility issues was recorded throughout the study period. Students generally found the devices useful, and few technical problems were identified; however, lack of skill in using the devices and lack of support from staff in the clinical setting were commonly identified issues. Self-efficacy scores were high throughout the study. Attitudes, perceptions of the desirability of use, perceived personal control over use, and intentions of using the device were lower postimplementation than at baseline. Attitude toward the technology predicted intention to use the device after graduation. Mobile technology may promote evidence-informed practice; however, supporting students' acquisition of related skills may optimize use. Successful integration of mobile technology into practice requires attention to factors that affect student attitudes.

  16. Social responsibility and educational communication in communities accessed by the works: a case study. IEGA - enterprise implementations for gasene

    Energy Technology Data Exchange (ETDEWEB)

    Campos, Elisangela Assis de; Farias, Aline Marianne Magalhaes [LP Empreendimentos, Rio de janeiro, RJ (Brazil); Marques, Yanna Oliveira [Cia. Nacional de Dutos (Conduto S/A), Duque de Caxias, RJ (Brazil); Penido, Rita de Cassia [Sinopec Brasil, Rio de Janeiro, RJ (Brazil)

    2009-12-19

    Construction and assembly in a gas pipeline project is a constant study of realities and in some cases situations which involve interferences in communities, the company's interests must be wholly integrated with the primary need of the project which is to construct with Social-Environmental Responsibility, establish a good relationship, respect the communities values in which the project passes through and around and surround itself with measures guaranteeing safety, information about the activities and cause minimal impact in the day to day lives of the residents. At Spread 2A of the Pipeline project Cacimbas-Catu, the necessity to develop a specific project for the communities surrounding the access areas was elaborated principally because the topography only permitted the transportation of pipes, equipment and personnel to pass through these areas. This unique situation was drafted based on the transit of vehicles and heavy machinery, through communities with a low IDH (Human Development Index), dangerous living conditions and a high demographic density. Preventive and pacifying actions for Communities and Social responsibility were drafted and developed, involving a multidisciplinary collective effort with other sectors of the project, applying a global theme to ensure safety for the residents around the access areas, also to divulge information in regards to project activities, establish ethical and transparent communication and implement measures that assist in building a solid relationship between the enterprise and community, anticipating risky situations and possible conflicts. This Case Study has as an objective to present projects that were developed in the area of Communication and Social Responsibility in the Access Communities and that, proved effective, became standard within the entire work force's Trainings and Daily Safety, Environmental, and Occupational Health Dialoguing. During the development of the Project 'Street of Leisure

  17. Memory architecture for efficient utilization of SDRAM: a case study of the computation/memory access trade-off

    DEFF Research Database (Denmark)

    Gleerup, Thomas Møller; Holten-Lund, Hans Erik; Madsen, Jan

    2000-01-01

    This paper discusses the trade-off between calculations and memory accesses in a 3D graphics tile renderer for visualization of data from medical scanners. The performance requirement of this application is a frame rate of 25 frames per second when rendering 3D models with 2 million triangles, i....... to use a memory access strategy with write-only and read-only phases, and a buffering system, which uses round-robin bank write-access combined with burst read-access....

  18. Horizontal Stratification in Access to Danish University Programmes by Institution and Fields of Study

    DEFF Research Database (Denmark)

    Munk, Martin D.; Thomsen, Jens Peter

    2017-01-01

    In this paper we use register data to investigate social stratification within fields of study and university institutions in Denmark. We argue firstly, that it is important to utilize a relatively detailed classification of parents’ occupation, in order to single out how students are endowed...... with different resources, even when their parents would normally be characterized as belonging to the same class. Secondly, we distinguish between disciplines as well as between university institutions in explaining the dynamics of social stratification in the Danish University system. Several dimensions...... are found to be important: the degree of social stratification in different fields of study − separating classical from more vocational disciplines − and the degree of social stratification prevalent at the university institution − whether it has a liberal arts university profile or one that favours more...

  19. Access to specialty care in autism spectrum disorders-a pilot study of referral source

    Directory of Open Access Journals (Sweden)

    West Therese

    2011-05-01

    Full Text Available Abstract Background In the United States, a medical home model has been shown to improve the outcomes for children with special health care needs. As part of this model, primary care physicians provide comprehensive medical care that includes identification of delayed and/or atypical development in children and coordination of care with specialists. However, it is not clear if families of children with Autism Spectrum Disorder (ASD rely on the medical home model for care of their child to the same extent as families of children with other special health care needs. This study aims to add to the understanding of medical care for children with ASD by examining the referral source for specialty care. Methods This retrospective study was accomplished by evaluating parent completed intake data for children with ASD compared to those with other neurological disorders in a single physician Pediatric Neurology Practice at a major urban medical center in Northern New Jersey. To account for referral bias, a similar comparison study was conducted using a multispecialty ASD practice at the same medical center. Parent reported "source of referral" and "reason for the referral" of 189 ASD children and 108 non-ASD neurological disordered children were analyzed. Results The specialty evaluations of ASD were predominantly parent initiated. There were significantly less referrals received from primary care physicians for children with ASD compared to children with other neurodevelopmental disorders. Requirement of an insurance referral was not associated with a primary care physician prompted specialty visit.We identified different patterns of referral to our specialty clinics for children with ASD vs. children with other neurolodevelopmental disorders. Conclusion The majority of the families of children with ASD evaluated at our autism center did not indicate that a primary care physician initiated the specialty referral. This study suggests that families of

  20. Geographic distribution of need and access to health care in rural population: an ecological study in Iran

    Directory of Open Access Journals (Sweden)

    Najafi Behzad

    2011-09-01

    Full Text Available Abstract Introduction Equity in access to and utilization of health services is a common goal of policy-makers in most countries. The current study aimed to evaluate the distribution of need and access to health care services among Iran's rural population between 2006 and 2009. Methods Census data on population's characteristics in each province were obtained from the Statistical Centre of Iran and National Organization for civil registration. Data about the Rural Health Houses (RHHs were obtained from the Ministry of Health. The Health Houses-to-rural population ratio (RHP, crude birth rate (CBR and crude mortality rate (CMR in rural population were calculated in order to compare their distribution among the provinces. Lorenz curves of RHHs, CMR and CBR were plotted and their decile ratio, Gini Index and Index of Dissimilarity were calculated. Moreover, Spearman rank-order correlation was used to examine the relation between RHHs and CMR and CBR. Results There were substantial differences in RHHs, CMR and CBR across the provinces. CMR and CBR experienced changes toward more equal distributions between 2006 and 2009, while inverse trend was seen for RHHs. Excluding three provinces with markedly changes in data between 2006 and 2009 as outliers, did not change observed trends. Moreover; there was a significant positive relationship between CMR and RHP in 2009 and a significant negative association between CBR and RHP in 2006 and 2009. When three provinces with outliers were excluded, these significant associations were disappeared. Conclusion Results showed that there were significant variations in the distribution of RHHs, CMR and CBR across the country. Moreover, the distribution of RHHs did not reflect the needs for health care in terms of CMR and CBR in the study period.

  1. Genome-Wide Association Study for Traits Related to Plant and Grain Morphology, and Root Architecture in Temperate Rice Accessions.

    Directory of Open Access Journals (Sweden)

    Filippo Biscarini

    Full Text Available In this study we carried out a genome-wide association analysis for plant and grain morphology and root architecture in a unique panel of temperate rice accessions adapted to European pedo-climatic conditions. This is the first study to assess the association of selected phenotypic traits to specific genomic regions in the narrow genetic pool of temperate japonica. A set of 391 rice accessions were GBS-genotyped yielding-after data editing-57000 polymorphic and informative SNPS, among which 54% were in genic regions.In total, 42 significant genotype-phenotype associations were detected: 21 for plant morphology traits, 11 for grain quality traits, 10 for root architecture traits. The FDR of detected associations ranged from 3 · 10-7 to 0.92 (median: 0.25. In most cases, the significant detected associations co-localised with QTLs and candidate genes controlling the phenotypic variation of single or multiple traits. The most significant associations were those for flag leaf width on chromosome 4 (FDR = 3 · 10-7 and for plant height on chromosome 6 (FDR = 0.011.We demonstrate the effectiveness and resolution of the developed platform for high-throughput phenotyping, genotyping and GWAS in detecting major QTLs for relevant traits in rice. We identified strong associations that may be used for selection in temperate irrigated rice breeding: e.g. associations for flag leaf width, plant height, root volume and length, grain length, grain width and their ratio. Our findings pave the way to successfully exploit the narrow genetic pool of European temperate rice and to pinpoint the most relevant genetic components contributing to the adaptability and high yield of this germplasm. The generated data could be of direct use in genomic-assisted breeding strategies.

  2. A critical study on availability and price variation between different brands: Impact on access to medicines

    Directory of Open Access Journals (Sweden)

    Das S

    2007-01-01

    Full Text Available The present study aims to present a representative view of the existing situation of availability and price variation, by comparing data about brand availability, and difference in pricing between various brands of 20 drugs under six therapeutic categories. The project involved collecting data from 10 retail outlets from the city area, 10 outlets from town area and 15 retail outlets from the rural area spread over a time span of 6 months. The drug categories studied were analgesics, antibiotics, drugs acting on cardiovascular and central nervous system, drugs acting on gastrointestinal tract and steroids. Data analysis showed that as compared to data on national availability of different brands, the number of brands available in the town, city and rural segments in general, are less. In all sectors, town, city and rural areas, almost equal number of brands is found to be available, with a slightly higher availability in the cities. Price difference between different brands (single drug or drug combinations varies up to an extent of 881% (in case of amlodipine on the higher side, and the lowest being 7% (in case of doxycycline. Out of all brands studied, it was observed that the highest priced brand was the most sold brand in cases of 5 products (single drug/combinations, and the lowest priced brand was the most sold in case of 2 products. It emerged that prices of drug molecules including those under National Essential Drug List, increased during 1996-2004 to a certain extent. It was noted, that % increment of price of drugs under Drug Price Control Order was less than those of drugs not under the purview of Drug Price Control Order. The difference in price between various brands of the same drug is too wide.

  3. Horizontal Stratification in Access to Danish University Programs by Institution and Field of Study

    DEFF Research Database (Denmark)

    Munk, Martin D.; Thomsen, Jens Peter

    2012-01-01

    In this paper we use register data to investigate social stratification within fields of study and university institutions in Denmark. We argue firstly, that it is important to utilize a relatively detailed classification of parents’ occupation, in order to single out how students are endowed...... with different resources, even when their parents would normally be characterized as belonging to the same class. Secondly, we distinguish between disciplines as well as between university institutions in explaining the dynamics of inequality in the Danish University system. Several dimensions are found...

  4. Some self-access principles

    Directory of Open Access Journals (Sweden)

    Lucy Cooker

    2010-06-01

    Full Text Available In this article, I will describe how the Self-Access Learning Centre (SALC at Kanda University of International Studies (KUIS was established, and discuss some of the personal philosophies of self-access centres (SACs and self-access learning that I have developed over the eight years of being associated with this centre.

  5. Effect of Ethephon on Almond Bloom Delay, Yield, and Nut Quality under Warm Climate Conditions in Northwestern Mexico Efecto del Ethephon en el Retraso de la Floración, la Producción y la Calidad del Almendro, bajo Condiciones de Clima Caliente del Noroeste de México

    Directory of Open Access Journals (Sweden)

    Raúl Leonel Grijalva-Contreras

    2011-03-01

    Full Text Available World almond (Prunus dulcis (Mill. D.A. Webb production is mostly located in areas where flowering is injured by low temperatures, and using ethephon (2-chloroethylphosphonic acid to delay bloom is suggested as a measure to avoid frost damage. However, it is unknown if that practice could be beneficial in Mexico’s warm climates. The objective of this study was to determine the effect of ethephon on almond bloom delay and yield. We evaluated foliar applications of ethephon at doses of 75, 150, and 300 mg L-1 at 10% leaf drop stage and at 150 mg L-1 during dormancy over 2 yr. In 2004, ethephon applied at 10% leaf drop stage delayed bloom by 7, 8, and 9 d at 75, 150, and 300 mg L-1, respectively (p La producción de almendra (Prunus dulcis (Mill. D.A. Webb en el mundo está situada sobre todo en las áreas donde la floración es dañada por bajas temperaturas, y se sugiere el uso del ethephon (ácido 2-cloroetil fosfónico para retrasarla, como una medida para evitar daños por helada. Sin embargo, no se sabe si esa práctica podría ser beneficiosa bajo los climas calientes de México. El objetivo de este estudio fue determinar el efecto del ethephon (ácido 2-cloroetil fosfónico sobre el retraso de la floración y la producción de la almendra. Evaluamos la aplicación foliar de ethephon en dosis de 75; 150 y 300 mg L-1 en la etapa de 10% de caída de la hoja, y en 150 mg L-1 en la etapa de dormancia, durante 2 años. En el 2004, ethephon aplicado en la etapa de 10% de caída de la hoja retrasó la floración por 7; 8 y 9 d a 75; 150 y 300 mg L-1 respectivamente (p < 0,01, y en 2005 el retraso de la floración fue de 3 d a 300 mg L-1. El ethephon aplicado durante dormancia retrasó la floración 2 d en el primer año pero no hubo efecto en el segundo año. El rendimiento y el amarre de fruta fueron afectados por el ethephon aplicado en la etapa de 10% de caída de la hoja en 2004, pero no en 2005. Ni la producción ni el amarre de fruta fue

  6. Universal Access in Heritage Sites: A Case Study on Historic Sites in Jaipur, India.

    Science.gov (United States)

    Vardia, Shweta; Khare, Rachna; Khare, Ajay

    2016-01-01

    A nation is recognized by a range of its significant historical, cultural and natural properties. These properties are generally preserved and maintained either by national administration or by private owners and charitable trusts due to higher value of their cultural inheritance and termed globally as heritage or historic sites. Heritage sites are a significant asset, a unique and irreplaceable resource which reflects a rich and diverse expression of past societies and forms an integral part of local, regional and national cultural identity. Today, heritage sites also play an important role in communication and knowledge exchange. Thus the rapidly increasing heritage tourism industry faces several challenges too. One of the challenges is that there is a segment of society who is not yet able to equally enjoy the visit to historic structures/sites and attractions, facilities and services. This paper aims to study the experience and develop understanding regarding the heritage structures/sites approached and interacted by diverse users. This study is an outcome of a hands on workshop conducted with diverse users at various historic sites in the city of Jaipur viz. at The City Palace Complex, Jaipur, Jaigarh Fort and the Haveli at Kanota near to Jaipur India.

  7. Women's access to managerial positions: an experimental study of leadership styles and gender.

    Science.gov (United States)

    Cuadrado, Isabel; Morales, J Francisco; Recio, Patricia

    2008-05-01

    This study attempts to test one of the explanations of the scarce representation of women in managerial positions, specifically the one advanced by "role congruity theory of prejudice toward female leaders" (Eagly & Karau, 2002), which appeals to the fact that women get unfavorable evaluations if they adopt male-stereotypical leadership styles. One-hundred and thirty-six undergraduate students participated in an experiment with a 2 (Male-stereotypical vs. Female-stereotypical leadership style) x 2 (Male vs. Female leader) design. Dependent variables were leader's competence, efficacy, and evaluation in a series of traits. It was found that, regardless of sex, the leaders were considered more competent and efficient, and were evaluated more favorably, when they adopted stereotypically feminine leadership styles. Implications of these findings for women's underrepresentation as leaders in management top positions worldwide are discussed.

  8. Landslide detectability with coarse resolution imagery: a Sentinel-2 emulation study to access spectral landslide discrimination.

    Science.gov (United States)

    Mota, Bernardo; Mondini, Alessandro; Malamud, Bruce D.; Mihir, Monika; Drake, Nick

    2014-05-01

    In this paper we explore landslide detectability using a simulation of course resolution (10 m) remote sensing imagery. During the last decade the increasing availability of Very High Resolution (VHR) imagery has significantly improved accuracies obtained by change detection classification algorithms. Still, one of the disadvantages is a spatial-temporal compromise, in that the VHR imagery is generally not taken frequently over the same region. The planed optical sensor aboard the two Sentinel-2 satellites will potentially overcome this limitation, as the sensor will be able to supply coarse resolution images (10 m) with a revisiting period of 5 days at the equator. This will potentially allow for quick assessments after groups of landslides are triggered (e.g., by an earthquake or heavy rainfall) anywhere in the world, soon after the landslides occurs. The scope of this study is to analyse the potential limitations supplied by this imagery for landslide detection. For the study, pre and post Sentinel-2 images were emulated by downgrading two Quickbird satellite images, taken on 2 September 2006 and on 8 October 2009, over the Messina province in Sicily, Italy, where on 1 October 2009 a rainfall storm triggered landslides, soil erosion and inundation. Spectral information, based on change detection indexes (NDVI difference, principal component analysis and spectral angle), were extracted for the stable and unstable areas according to an independent landslide inventory. The inventory was derived by aerial photo interpretation prepared at 1:10,000 scale covering three catchments with a total area of 15 km2 and characterized by soil slips and debris flows affecting 7.9% of the area. Stable and unstable spectral discrimination was determined by analysing their separability, and imposing different areal thresholds between stable and unstable areas, for both mass source and debris flow landslide types. Preliminary results show good agreement between the original and

  9. Water quality laboratories in Colombia: a GIS-based study of urban and rural accessibility.

    Science.gov (United States)

    Wright, Jim; Liu, Jing; Bain, Robert; Perez, Andrea; Crocker, Jonny; Bartram, Jamie; Gundry, Stephen

    2014-07-01

    The objective of this study was to quantify sample transportation times associated with mandated microbiological monitoring of drinking-water in Colombia. World Health Organization Guidelines for Drinking-Water Quality recommend that samples spend no more than 6h between collection and analysis in a laboratory. Census data were used to estimate the minimum number of operational and surveillance samples required from piped water supplies under national regulations. Drive-times were then computed from each supply system to the nearest accredited laboratory and translated into sample holding times based on likely daily monitoring patterns. Of 62,502 surveillance samples required annually, 5694 (9.1%) were found to be more than 6 h from the nearest of 278 accredited laboratories. 612 samples (1.0%) were more than 24 hours' drive from the nearest accredited laboratory, the maximum sample holding time recommended by the World Health Organization. An estimated 30% of required rural samples would have to be stored for more than 6 h before reaching a laboratory. The analysis demonstrates the difficulty of undertaking microbiological monitoring in rural areas and small towns from a fixed laboratory network. Our GIS-based approach could be adapted to optimise monitoring strategies and support planning of testing and transportation infra-structure development. It could also be used to estimate sample transport and holding times in other countries.

  10. Human resources needs for universal access to antiretroviral therapy in South Africa: a time and motion study

    NARCIS (Netherlands)

    Hontelez, J.A.C.; Newell, M.L.; Bland, R.M.; Munnelly, K.; Lessells, R.J.; Barnighausen, T.

    2012-01-01

    ABSTRACT: BACKGROUND: Although access to life-saving treatment for patients infected with HIV patients in South Africa has improved substantially since 2004, treating all eligible patients (universal access) remains elusive. As the prices of antiretroviral drugs have dropped over the past years, ava

  11. Human resources needs for universal access to antiretroviral therapy in South Africa: A time and motion study

    NARCIS (Netherlands)

    J.A.C. Hontelez (Jan A.C.); M.L. Newell (Marie Louise); R.M. Bland (Ruth); K. Munnelly (Kristen); R.J. Lessells (Richard ); T. Bärnighausen (Till)

    2012-01-01

    textabstractBackground: Although access to life-saving treatment for patients infected with HIV in South Africa has improved substantially since 2004, treating all eligible patients (universal access) remains elusive. As the prices of antiretroviral drugs have dropped over the past years, availabili

  12. Increasing Access to Places for Physical Activity Through a Joint Use Agreement: A Case Study in Urban Honolulu

    Directory of Open Access Journals (Sweden)

    Lehua B. Choy, MPH

    2008-07-01

    Full Text Available BackgroundTo increase levels of physical activity (PA, interventions that create or enhance access to places for PA are recommended. Establishing a joint use agreement is one way to increase access to existing PA and recreational facilities. The purpose of this article is to present a case study of In-Motion, a pilot joint use agreement project at one urban high school in Honolulu, Hawaii.ContextResidents of urban Honolulu are underserved by the amount of parkland and recreational facilities available for their use. The Honolulu County Department of Parks and Recreation sought to implement a joint use agreement to use the facilities of one urban high school for a recreational program. The high school selected for the pilot project has a student population primarily from low-income and ethnic minority backgrounds.MethodsAn assessment of the potential of 7 urban high schools to implement a joint use agreement was conducted to select the pilot site. In-Motion developed and implemented a joint use agreement. PA preferences of students, staff, and community members were assessed to guide recreational program offerings. Various recreational classes were offered free to the school community.ConsequencesSeveral barriers to implementing the joint use agreement and recreational program were encountered. However, participants were satisfied with the recreational classes they attended and said that the In-Motion program helped them to engage in more PA. Program awareness by high school students and staff was high.InterpretationIn-Motion has successfully modeled a pilot joint use agreement and provided new opportunities for PA to the high school’s students, teachers, and staff, and to community residents.

  13. Mastery learning improves students skills in inserting intravenous access: a pre-post-study

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    Friederichs, Hendrik

    2016-08-01

    Full Text Available Objective: Inserting peripheral venous catheters (PVCs has been identified as a core competency for medical students. Because the performance – even of hygienic standards – of both students and novice physicians is frequently inadequate, medical faculties must focus on competence-based learning objectives and deliberate practice, features that are combined in mastery learning. Our aim was to determine the competency of students in inserting PVCs before and after an educational intervention. Design: This study comprised a skills assessment with pre- and post-tests of a group of third-year students who received a simulation-based intervention. A newly established curriculum involved one hour of practice at inserting PVCs on simulators. Students were required to pass a test (total 21 points, pass mark 20 points developed on the concept of mastery learning. An unannounced follow-up test was performed one week (8 days after the intervention.Setting: The simulation center of the medical faculty in Muenster.Participants: Third-year students who received the intervention.Results: One hundred and nine complete data sets were obtained from 133 students (82.5%. Most students (97.2% passed the test after the intervention (mean score increase from 15.56 to 20.50, <0.001. There was a significant decrease in students’ performance after one week (8 days: only 74.5% of participants passed this retest (mean score reduction from 20.50 to 20.06, <0.001. Conclusion: Mastery learning is an effective form of teaching practical skills to medical students, allowing a thorough preparation for the challenges of daily clinical practice.

  14. Comparison of the Remaining Tooth Structure and Fracture Resistance between Labial and Lingual Access Cavities in Permanent Anterior Teeth with Labial Caries: An In-vitro Study

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    Eftekhar B.

    2012-02-01

    Full Text Available Statement of Problem: Labial access cavity preparation is a conventional method in endodontic treatment of the anterior teeth, but in some conditions labial cavity preparation is recommended.Purpose: The aim of this study was to compare labial and lingual access cavity preparation in the permanent anterior teeth with labial caries in terms of the remaining tooth structure and fracture resistance. Materials and Method: In this experimental study, 150 intact permanent human anterior teeth were selected in 5 groups each with 30 teeth including the maxillary central, maxillary lateral, maxillary canine, mandibular incisors and mandibular canine. A class V cavity with similar ratios to dimensions of each tooth was prepared on the labial surface of all specimens. The volumes of each of these teeth were measured by Penta Pycnometer before and after class V cavity preparation (V1, V2. Each group was randomly divided into 2 equal subgroups (n=15. Access cavities were prepared labially in subgroup A and lingually in subgroup B; then, the remained volume of each tooth was measured again (V3. The mean proportional volume loss of each tooth was calculated through access preparation (V2-V3/V1. Then, the specimens were embedded in acrylic resin blocks and subjected to load with a universal testing machine.Results: The differences of mean of theremained volume and fracture resistance of the two subgroups were statistically significant in all groups ( p <0.05 and those teeth with labial access showed more remained volume and fracture resistance than lingual access. Conclusion: Labial access cavity preparation can enhance the remained volume and fracture resistance as compared to lingual access in endodontic treatment of the anterior teeth with labial caries especially in mandibular incisors.

  15. Complication with intraosseous access

    DEFF Research Database (Denmark)

    Hallas, Peter; Brabrand, Mikkel; Folkestad, Lars

    2013-01-01

    INTRODUCTION: Intraosseous access (IO) is indicated if vascular access cannot be quickly established during resuscitation. Complication rates are estimated to be low, based on small patient series, model or cadaver studies, and case reports. However, user experience with IO use in real...... physicians, anesthesiologists and pediatricians. RESULTS: 1,802 clinical cases of IO use was reported by n=386 responders. Commonly reported complications with establishing IO access were patient discomfort/pain (7.1%), difficulties with penetration of periosteum with IO needle (10.3%), difficulties...... with aspiration of bone marrow (12.3%), and bended/broken needle (4.0%). When using an established IO access the reported complications were difficulties with injection fluid and drugs after IO insertion (7.4%), slow infusion (despite use of pressure bag) (8.8%), displacement after insertion (8...

  16. Impact of accessible sexual and reproductive health care on poor and underserved adolescents in Managua, Nicaragua: a quasi-experimental intervention study.

    NARCIS (Netherlands)

    Meuwissen, L.E.; Gorter, A.C.; Knottnerus, A.J.A.

    2006-01-01

    BACKGROUND: The objective of this study was to evaluate a competitive voucher program intended to make sexual and reproductive health care (SRHC) accessible to adolescents from disadvantaged areas of Managua. METHODS: A quasi-experimental intervention study was performed in which 28,711 vouchers tha

  17. Barriers and enablers to healthcare access and use among Arabic-speaking and Caucasian English-speaking patients with type 2 diabetes mellitus: a qualitative comparative study

    Science.gov (United States)

    Alzubaidi, H; Mc Namara, K; Browning, Colette; Marriott, J

    2015-01-01

    Objective The objective of this study was to explore the decision-making processes and associated barriers and enablers that determine access and use of healthcare services in Arabic-speaking and English-speaking Caucasian patients with diabetes in Australia. Study setting and design Face-to-face semistructured individual interviews and group interviews were conducted at various healthcare settings—diabetes outpatient clinics in 2 tertiary referral hospitals, 6 primary care practices and 10 community centres in Melbourne, Australia. Participants A total of 100 participants with type 2 diabetes mellitus were recruited into 2 groups: 60 Arabic-speaking and 40 English-speaking Caucasian. Data collection Interviews were audio-taped, translated into English when necessary, transcribed and coded thematically. Sociodemographic and clinical information was gathered using a self-completed questionnaire and medical records. Principal findings Only Arabic-speaking migrants intentionally delayed access to healthcare services when obvious signs of diabetes were experienced, missing opportunities to detect diabetes at an early stage. Four major barriers and enablers to healthcare access and use were identified: influence of significant other(s), unique sociocultural and religious beliefs, experiences with healthcare providers and lack of knowledge about healthcare services. Compared with Arabic-speaking migrants, English-speaking participants had no reluctance to access and use medical services when signs of ill-health appeared; their treatment-seeking behaviours were straightforward. Conclusions Arabic-speaking migrants appear to intentionally delay access to medical services even when symptomatic. Four barriers to health services access have been identified. Tailored interventions must be developed for Arabic-speaking migrants to improve access to available health services, facilitate timely diagnosis of diabetes and ultimately to improve glycaemic control. PMID:26576809

  18. Effect of geographical access to health facilities on child mortality in rural Ethiopia: a community based cross sectional study.

    Directory of Open Access Journals (Sweden)

    Yemisrach B Okwaraji

    Full Text Available BACKGROUND: There have been few studies that have examined associations between access to health care and child health outcomes in remote populations most in need of health services. This study assessed the effect of travel time and distance to health facilities on mortality in children under five years in a remote area of rural north-western Ethiopia. METHODS AND FINDINGS: This study involved a randomly selected cross sectional survey of 2,058 households. Data were collected during home visits to all resident women of reproductive age (15-49 years. A geographic information system (GIS was used to map all households and the only health centre in the district. The analysis was restricted to 2,206 rural children who were under the age of five years during the five years before the survey. Data were analysed using random effects Poisson regression. 90.4% (1,996/2,206 of children lived more than 1.5 hours walk from the health centre. Children who lived ≥1.5 hrs from the health centre had a two to three fold greater risk of death than children who lived <1.5 hours from the health centre (children with travel time 1.5-<2.5 hrs adjusted relative risk [adjRR] 2.3[0.95-5.6], travel time 2.5-<3.5 hrs adjRR 3.1[1.3-7.4] and travel time 3.5-<6.5 hrs adjRR 2.5[1.1-6.2]. CONCLUSION: Distance to a health centre had a marked influence on under five mortality in a poor, rural, remote area of Ethiopia. This study provides important information for policy makers on the likely impact of new health centres and their most effective location in remote areas.

  19. Efecto de la velocidad de deformación en la recristalización dinámica de un cobre ETP durante su compresión en caliente con temperatura descendente

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    Torrente, G.

    2011-12-01

    Full Text Available The main purpose of this project is to establish the effect of strain rate in the dynamic recrystallization of an ETP copper during its hot deformation with descending temperature. For this, there were made some tests of hot compression until true deformations close to one, with four strain rates while the temperature was descending. The tests that were made to the two lowest strain rates, showed a multiple peaks dynamic recrystallization with a rise of the tension instead it reaches the steady state, maybe due a continuous decline of the temperature.With the increase of rate the rest of the tests showed simple peak recrystallization and recovering respectively. The experimental results were compared with the results of a simulation based on the Damped Cosine Avrami Model. The simulation produced results closed to those measured during the multiple peaks dynamic recrystallization. These suggest that the application of this Model may be extended to multiple peaks dynamic recrystallization processes with changeable temperature.

    En el presente trabajo se estudia el efecto de la velocidad de deformación en la recristalización dinámica de un cobre electrolítico puro durante su deformación en caliente con temperatura descendente. Para ello, se realizaron ensayos de compresión en caliente hasta deformaciones verdaderas cercanas a uno, con cuatro velocidades de deformación, mientras descendía la temperatura. Los ensayos realizados a las dos velocidades de deformación más bajas mostraron recristalización dinámica de picos múltiples con un ascenso de la tensión en lugar del estado de saturación, debido probablemente al continuo descenso de la temperatura. Con el aumento de la velocidad, los ensayos restantes mostraron recristalización de pico simple y solo restauración, respectivamente. Los resultados experimentales se compararon con los de una simulación basada en el modelo cosenoidal amortiguado de Avrami. La simulación arroj

  20. Aplicación de los mapas de procesado en la optimización de los parámetros de un proceso de conformado en caliente. I parte. Revisión teórica

    Directory of Open Access Journals (Sweden)

    Al Omar, A.

    1997-04-01

    Full Text Available The hot working processes constitute an important step in the manufacture of components for engineering applications. In the past, the mechanical processing have been used to impart a shape to the engineering materials. More recently, however, the hot working processes are used not only to achieve the required shape but also to impart desirable mechanical and microstructural characteristics by an adequate design of the thermomechanical process. The aim of the present paper is to summarize the general characteristics of the Dynamic Materials Model. In this model, the workpiece material under hot working conditions is considered to be a dissipater of power. Also, the extreme principles of irreversible thermodynamics applied to large plastic flow are described to develop a continuum criterion capable to predict the metallurgical instabilities in a hot worked material.

    Los procesos de conformado en caliente de materiales constituyen un paso muy importante en la fabricación de los componentes mecánicos. Durante siglos estos procesos fueron utilizados para dar a los metales la forma deseada. Hoy en día, sin embargo, la deformación en caliente no sólo proporciona la geometría deseada sino las características mecánicas y microestructurales necesarias mediante un adecuado diseño del proceso de termoconformado. En el presente trabajo se presentan, a modo de revisión, las características generales del llamado "modelo dinámico de materiales" mediante el cual se optimizan los parámetros de conformación de un material usando los mapas de disipación de energía. En este modelo, la pieza conformada a alta temperatura se considera como la única parte de todo el sistema del proceso capaz de disipar energía. Se describe, también, la termodinámica irreversible aplicada a la mecánica continua de la fluencia plástica en las grandes deformaciones para desarrollar un criterio capaz de predecir las inestabilidades metalúrgicas en un material

  1. CHANGES AND PERSPECTIVES OF SLOVENIAN PIG PRODUCTION BEFORE AND AFTER ACCESSION TO THE EU: THE CASE STUDY

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    M. Kastelić

    2007-06-01

    Full Text Available The changes in pig production during the last six to ten years were studied in case of Farme Ihan d. d., the Slovenian pig producer. At the beginning of the period, the company produced 70 to 75 thousand slaughtering pigs per year. At the end of the period the production increased to 150 thousand. As expected, the prices of pigs were reduced during that period. According to the new legislation, the large part of facilities was reconstructed and some environment protection investments were done. The production was improved: the number of weaned pigs per sow per year increased from 19.2 in 1996 to 25.48 in 2006 and reached the Danish average. The percentage of meat was increased in the same period from 52.7 % to 58.6 %. The progress in daily gain and in feed conversion ratio was moderate. To secure the access to the market, the own slaughter facility was bought and reconstructed. For the same reason, the company became shareholder of two meat processing companies. The transition period has not been finished yet. Production results may improve faster than in old EU member countries. Investment cycle has also not been finished yet. More investments, especially in environment protection are needed.

  2. Pharmacological Relaxation of the Ureter When Using Ureteral Access Sheaths during Ureterorenoscopy: A Randomized Feasibility Study in a Porcine Model

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    Søren Kissow Lildal

    2016-01-01

    Full Text Available Objective. High intraluminal pressure during ureterorenoscopy (URS increases risk of infectious and haemorrhagic complications. Intrarenal pressure may be reduced by the use of ureteral access sheaths (UASs, which on the other hand may cause ureteral damage. We have previously shown that the β-agonist isoproterenol (ISO, when administered topically in the irrigation fluid, is able to inhibit ureteral muscle tone and lower intrarenal pressure during URS. The aim of this study was to examine the effect of ISO on the success rate of UAS insertion in a porcine model. Materials and Methods. 22 pigs in which a UAS could not initially be placed were randomized to endoluminal irrigation with either ISO (0.1 μg/mL or saline before a new insertion trial. Subsequently, it was registered whether the UAS could be passed without resistance. During extraction of the sheath, any ureteral lesions were characterized ureteroscopically using the PULS classification system. Surgeons were blinded to randomization. Results. In the ISO group, the observed effect of irrigation was 63% successful UAS insertions, compared to 27% in the saline group. No serious lesions (

  3. Are There Inequities in Treatment of End-Stage Renal Disease in Sweden? A Longitudinal Register-Based Study on Socioeconomic Status-Related Access to Kidney Transplantation

    Science.gov (United States)

    Zhang, Ye; Jarl, Johan; Gerdtham, Ulf-G.

    2017-01-01

    Socioeconomic status-related factors have been associated with access to kidney transplantation, yet few studies have investigated both individual income and education as determinates of access to kidney transplantation. Therefore, this study aims to explore the effects of both individual income and education on access to kidney transplantation, controlling for both medical and non-medical factors. We linked the Swedish Renal Register to national registers for a sample of adult patients who started Renal Replacement Therapy (RRT) in Sweden between 1 January 1995, and 31 December 2013. Using uni- and multivariate logistic models, we studied the association between pre-RRT income and education and likelihood of receiving kidney transplantation. For non-pre-emptive transplantation patients, we also used multivariate Cox proportional hazards regression analysis to assess the association between treatment and socioeconomic factors. Among the 16,215 patients in the sample, 27% had received kidney transplantation by the end of 2013. After adjusting for covariates, the highest income group had more than three times the chance of accessing kidney transplantation compared with patients in the lowest income group (odds ratio (OR): 3.22; 95% confidence interval (CI): 2.73–3.80). Patients with college education had more than three times higher chance of access to kidney transplantation compared with patients with mandatory education (OR: 3.18; 95% CI: 2.77–3.66). Neither living in the county of the transplantation center nor gender was shown to have any effect on the likelihood of receiving kidney transplantation. For non-pre-emptive transplantation patients, the results from Cox models were similar with what we got from logistic models. Sensitive analyses showed that results were not sensitive to different conditions. Overall, socioeconomic status-related inequities exist in access to kidney transplantation in Sweden. Additional studies are needed to explore the possible

  4. In silico study of rotavirus VP7 surface accessible conserved regions for antiviral drug/vaccine design.

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    Ambarnil Ghosh

    Full Text Available BACKGROUND: Rotaviral diarrhoea kills about half a million children annually in developing countries and accounts for one third of diarrhea related hospitalizations. Drugs and vaccines against the rotavirus are handicapped, as in all viral diseases, by the rapid mutational changes that take place in the DNA and protein sequences rendering most of these ineffective. As of now only two vaccines are licensed and approved by the WHO (World Health Organization, but display reduced efficiencies in the underdeveloped countries where the disease is more prevalent. We approached this issue by trying to identify regions of surface exposed conserved segments on the surface glycoproteins of the virion, which may then be targeted by specific peptide vaccines. We had developed a bioinformatics protocol for these kinds of problems with reference to the influenza neuraminidase protein, which we have refined and expanded to analyze the rotavirus issue. RESULTS: Our analysis of 433 VP7 (Viral Protein 7 from rotavirus surface protein sequences across 17 subtypes encompassing mammalian hosts using a 20D Graphical Representation and Numerical Characterization method, identified four possible highly conserved peptide segments. Solvent accessibility prediction servers were used to identify that these are predominantly surface situated. These regions analyzed through selected epitope prediction servers for their epitopic properties towards possible T-cell and B-cell activation showed good results as epitopic candidates (only dry lab confirmation. CONCLUSIONS: The main reasons for the development of alternative vaccine strategies for the rotavirus are the failure of current vaccines and high production costs that inhibit their application in developing countries. We expect that it would be possible to use the protein surface exposed regions identified in our study as targets for peptide vaccines and drug designs for stable immunity against divergent strains of the

  5. A short note on integrated assessment modeling approaches : Rejoinder to the review of "Making or breaking climate targets - The AMPERE study on staged accession scenarios for climate policy"

    NARCIS (Netherlands)

    Kriegler, Elmar; Riahi, Keywan; Bauer, Nico; Schwanitz, Valeria Jana; Petermann, Nils; Bosetti, Valentina; Marcucci, Adriana; Otto, Sander; Paroussos, Leonidas; Rao-Skirbekk, Shilpa; Currás, Tabaré Arroyo; Ashina, Shuichi; Bollen, Johannes; Eom, Jiyong; Hamdi-Cherif, Meriem; Longden, Thomas; Kitous, Alban; Méjean, Aurélie; Sano, Fuminori; Schaeffer, Michiel; Wada, Kenichi; Capros, Pantelis; van Vuuren, Detlef P.; Edenhofer, Ottmar; Bertram, Christoph; Bibas, Ruben; Edmonds, Jae; Johnson, Nils; Krey, Volker; Luderer, Gunnar; McCollum, David; Jiang, Kejun

    2015-01-01

    We provide a rejoinder to a review (Rosen, 2015) of our original article "Making or breaking climate targets - the AMPERE study on staged accession scenarios for climate policy" (Kriegler et al., 2015a). We have a substantial disagreement with the content of the review, and feel that it is plagued b

  6. Economic analysis of scaling up access to modern family planning methods in low and middle-income countries; case studies for Indonesia and Uganda

    NARCIS (Netherlands)

    Zakiyah, N.; Van Asselt, A.; Cao, Q.; Setiawan, D.; Roijmans, F.; Postma, M.J.

    2016-01-01

    Objectives: Family planning is one of the initial strategies to improve maternal health in low and middle-income countries (L-MICs), where unmet need can still be high. The aim of this study was to estimate the cost-effectiveness of improved access to family planning in L-MICs, with Indonesia and Ug

  7. A Grounded Theory Study of the Process of Accessing Information on the World Wide Web by People with Mild Traumatic Brain Injury

    Science.gov (United States)

    Blodgett, Cynthia S.

    2008-01-01

    The purpose of this grounded theory study was to examine the process by which people with Mild Traumatic Brain Injury (MTBI) access information on the web. Recent estimates include amateur sports and recreation injuries, non-hospital clinics and treatment facilities, private and public emergency department visits and admissions, providing…

  8. Factors Influencing Webmasters and the Level of Web Accessibility and Section 508 Compliance at SACS Accredited Postsecondary Institutions: A Study Using the Theory of Planned Behavior

    Science.gov (United States)

    Freeman, Misty Danielle

    2013-01-01

    The purpose of this research was to explore Webmasters' behaviors and factors that influence Web accessibility at postsecondary institutions. Postsecondary institutions that were accredited by the Southern Association of Colleges and Schools were used as the population. The study was based on the theory of planned behavior, and Webmasters'…

  9. Does household access to improved water and sanitation in infancy and childhood predict better vocabulary test performance in Ethiopian, Indian, Peruvian and Vietnamese cohort studies?

    Science.gov (United States)

    Dearden, Kirk A; Brennan, Alana T; Behrman, Jere R; Schott, Whitney; Crookston, Benjamin T; Humphries, Debbie L; Penny, Mary E; Fernald, Lia C H

    2017-01-01

    Objective Test associations between household water and sanitation (W&S) and children's concurrent and subsequent Peabody Picture Vocabulary Test (PPVT) scores. Design Prospective cohort study. Setting Ethiopia, India, Peru, Vietnam. Participants 7269 children. Primary outcome measures PPVT scores at 5 and 8 years. Key exposure variables were related to W&S, and collected at 1, 5 and 8 years, including ‘improved’ water (eg, piped, public tap or standpipe) and ‘improved’ toilets (eg, collection, storage, treatment and recycling of human excreta). Results Access to improved water at 1 year was associated with higher language scores at 5 years (3/4 unadjusted associations) and 8 years (4/4 unadjusted associations). Ethiopian children with access to improved water at 1 year had test scores that were 0.26 SD (95% CI 0.17 to 0.36) higher at 5 years than children without access. Access to improved water at 5 years was associated with higher concurrent PPVT scores (in 3/4 unadjusted associations), but not later scores (in 1/4 unadjusted associations). 5-year-old Peruvian children with access to improved water had better concurrent performance on the PPVT (0.44 SD, 95% CI 0.30 to 0.59) than children without access to improved water. Toilet access at 1 year was also associated with better PPVT scores at 5 years (3/4 unadjusted associations) and sometimes associated with test results at 8 years (2/4 unadjusted associations). Toilet access at 5 years was associated with concurrent PPVT scores (3/4 unadjusted associations). More than half of all associations in unadjusted models (water and toilets) persisted in adjusted models, particularly for toilets in India, Peru and Vietnam. Conclusions Access to ‘improved’ water and toilets had independent associations with children's PPVT scores that often persisted with adjustment for covariates. Our findings suggest that effects of W&S may go beyond subacute and acute infections and physical growth

  10. Simulación de la fluencia en caliente de un acero microaleado con un contenido medio de carbono. II parte. Recristalización dinámica: inicio y cinética

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    Cabrera, J. M.

    1997-06-01

    Full Text Available According to the part 1 of this work, in this second part the dynamic recrystallization of a commercial medium carbon microalloyed steel is characterized from the point of view of its onset and kinetics. For this purpose uniaxial hot compression tests were carried out over a range of five orders of magnitude in strain rate and 300 °C of temperature. Experimental results are compared with those reported in the literature and the possible effect of dynamic precipitation is also analyzed. It is verified that the kinetics of dynamic recrystallization can faithfully be described by the classical Avrami equation.

    Siguiendo el planteamiento efectuado en la I parte de este trabajo, en esta II parte se caracteriza la recristalización dinámica de un acero comercial microaleado con un contenido medio de carbono desde el punto de vista de su inicio y de su cinética. Con este objeto se efectuaron ensayos de compresión uniaxial en caliente en un intervalo de cinco órdenes de magnitud en velocidad de deformación y 300 °C de temperatura. Los resultados experimentales se comparan con los resultados reportados por diversos autores y se analizan los posibles efectos de precipitación dinámica. Se verifica que la cinética de la recristalización dinámica puede representarse fielmente por la ecuación de Avrami.

  11. Simulación de la fluencia en caliente de un acero microaleado con un contenido medio de carbono. I parte. Aproximación teórica

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    Cabrera, J. M.

    1997-04-01

    Full Text Available The constitutive equations to model the hot flow behaviour of metallic materials in general, and of microalloyed steels in particular (see part 2 of this work are established in this work. Special emphasis is done on the dynamic softening mechanisms, i.e., dynamic recovery and recrystallization phenomena. The equations developed are physic-based, not empirical, and the modeling allows an easy implementation in an analysis by numerical methods. The resulting equations are even able to predict the final grain size.

    En la presente revisión se plantean las ecuaciones constitutivas necesarias para efectuar la modelización de la fluencia en caliente de materiales metálicos y, en particular, de un acero microaleado (Véase la II parte de este trabajo. Se hace especial hincapié en la simulación de los fenómenos de restauración y recristalización dinámica. Las ecuaciones propuestas son de base física, no empírica, y el modelo resultante es relativamente sencillo de utilizar y de implementar en un análisis por métodos numéricos. El estudio no queda circunscrito al comportamiento a fluencia sino que es capaz de predecir el tamaño de grano final.

  12. Social Determinants of Equity in Access to Healthcare for Tuberculosis Patients in Republic of Macedonia – Results from a Case-Control Study

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    Dance Gudeva Nikovska

    2014-09-01

    Full Text Available Background Health is a complex phenomenon and equity as a basic human right an integral part of constitutions in almost all countries in the world. In Republic of Macedonia (RM, Tuberculosis (TB is clustered regionally and in certain ethnic groups. The main objective of this study was to analyze Social Determinants of Health (SDH and equity in access to healthcare services for TB patients in RM, aimed at complex analysis of factors that cause inequities. Methods Case-control study was conducted in the period March–December, 2013; “cases” are households of TB patients registered in the period July, 2012–June, 2013 and controls are households with no TB patients in their immediate vicinity. World Health Organization (WHO World Health Survey questionnaire was used to collect data. Results Analysis of SDH of TB patients shows that patients are mostly males, of lower socio-economic status, are less educated, unemployed and TB is clustered in certain ethnic groups. Analysis of access has identified these determinants as important barriers in access to health services. Conclusion The study has documented the basic SDH of TB patients in RM, as well as barriers in access to healthcare, providing useful baseline information to facilitate determination where to concentrate future efforts.

  13. Does the choice of neighbourhood supermarket access measure influence associations with individual-level fruit and vegetable consumption? A case study from Glasgow

    Science.gov (United States)

    2012-01-01

    Background Previous studies have provided mixed evidence with regards to associations between food store access and dietary outcomes. This study examines the most commonly applied measures of locational access to assess whether associations between supermarket access and fruit and vegetable consumption are affected by the choice of access measure and scale. Method Supermarket location data from Glasgow, UK (n = 119), and fruit and vegetable intake data from the ‘Health and Well-Being’ Survey (n = 1041) were used to compare various measures of locational access. These exposure variables included proximity estimates (with different points-of-origin used to vary levels of aggregation) and density measures using three approaches (Euclidean and road network buffers and Kernel density estimation) at distances ranging from 0.4 km to 5 km. Further analysis was conducted to assess the impact of using smaller buffer sizes for individuals who did not own a car. Associations between these multiple access measures and fruit and vegetable consumption were estimated using linear regression models. Results Levels of spatial aggregation did not impact on the proximity estimates. Counts of supermarkets within Euclidean buffers were associated with fruit and vegetable consumption at 1 km, 2 km and 3 km, and for our road network buffers at 2 km, 3 km, and 4 km. Kernel density estimates provided the strongest associations and were significant at a distance of 2 km, 3 km, 4 km and 5 km. Presence of a supermarket within 0.4 km of road network distance from where people lived was positively associated with fruit consumption amongst those without a car (coef. 0.657; s.e. 0.247; p0.008). Conclusions The associations between locational access to supermarkets and individual-level dietary behaviour are sensitive to the method by which the food environment variable is captured. Care needs to be taken to ensure robust and conceptually appropriate measures of

  14. Does the choice of neighbourhood supermarket access measure influence associations with individual-level fruit and vegetable consumption? A case study from Glasgow

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    Thornton Lukar E

    2012-07-01

    Full Text Available Abstract Background Previous studies have provided mixed evidence with regards to associations between food store access and dietary outcomes. This study examines the most commonly applied measures of locational access to assess whether associations between supermarket access and fruit and vegetable consumption are affected by the choice of access measure and scale. Method Supermarket location data from Glasgow, UK (n = 119, and fruit and vegetable intake data from the ‘Health and Well-Being’ Survey (n = 1041 were used to compare various measures of locational access. These exposure variables included proximity estimates (with different points-of-origin used to vary levels of aggregation and density measures using three approaches (Euclidean and road network buffers and Kernel density estimation at distances ranging from 0.4 km to 5 km. Further analysis was conducted to assess the impact of using smaller buffer sizes for individuals who did not own a car. Associations between these multiple access measures and fruit and vegetable consumption were estimated using linear regression models. Results Levels of spatial aggregation did not impact on the proximity estimates. Counts of supermarkets within Euclidean buffers were associated with fruit and vegetable consumption at 1 km, 2 km and 3 km, and for our road network buffers at 2 km, 3 km, and 4 km. Kernel density estimates provided the strongest associations and were significant at a distance of 2 km, 3 km, 4 km and 5 km. Presence of a supermarket within 0.4 km of road network distance from where people lived was positively associated with fruit consumption amongst those without a car (coef. 0.657; s.e. 0.247; p0.008. Conclusions The associations between locational access to supermarkets and individual-level dietary behaviour are sensitive to the method by which the food environment variable is captured. Care needs to be taken to ensure robust and conceptually

  15. Teaching Poverty with Geographic Visualization and Geographic Information Systems (GIS): A Case Study of East Buffalo and Food Access

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    Gjesfjeld, Christopher D.; Jung, Jin-Kyu

    2014-01-01

    Although various methods have been used to teach about poverty in the social work classroom (e.g., quantitative, historical, and qualitative), the use of geographic visualization and geographic information systems (GIS) has become a relatively new method. In our analysis of food access on the East Side of Buffalo, New York, we demonstrate the…

  16. Decrease in Suicide Rates after a Change of Policy Reducing Access to Firearms in Adolescents: A Naturalistic Epidemiological Study

    Science.gov (United States)

    Lubin, Gad; Werbeloff, Nomi; Halperin, Demian; Shmushkevitch, Mordechai; Weiser, Mark; Knobler, Haim Y.

    2010-01-01

    The use of firearms is a common means of suicide. We examined the effect of a policy change in the Israeli Defense Forces reducing adolescents' access to firearms on rates of suicide. Following the policy change, suicide rates decreased significantly by 40%. Most of this decrease was due to decrease in suicide using firearms over the weekend.…

  17. A Case Study on Environmental Perspectives of Boulderers and Access Issues at the Niagara Glen Nature Reserve

    Science.gov (United States)

    Thompson, Jeremy; Davidson, Justin; Hutson, Garrett

    2008-01-01

    Currently, there are concerns about access restrictions to bouldering, a form of rock climbing, and other outdoor activities practiced at the Niagara Glen Nature Reserve located near Niagara Falls, Ontario, Canada. The Niagara Parks Commission is currently in the process of exploring ways to balance protection of the natural area with sustainable…

  18. Access to health care for Roma children in Central and Eastern Europe: findings from a qualitative study in Bulgaria

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    Spencer Nick J

    2009-06-01

    Full Text Available Abstract Background Despite the attention the situation of the Roma in Central and Eastern Europe has received in the context of European Union enlargement, research on their access to health services is very limited, in particular with regard to child health services. Methods 50 qualitative in-depth interviews with users, providers and policy-makers concerned with child health services in Bulgaria, conducted in two villages, one town of 70,000 inhabitants, and the capital Sofia. Results Our findings provide important empirical evidence on the range of barriers Roma children face when accessing health services. Among the most important barriers are poverty, administrative and geographical obstacles, low levels of parental education, and lack of ways to accommodate the cultural, linguistic and religious specifics of this population group. Conclusion Our research illustrates the complexity of the problems the Roma face. Access to health care cannot be discussed in isolation from other problems this population group experiences, such as poverty, restricted access to education, and social exclusion.

  19. Interaction Problems Accessing E-Learning Environments in Multi-Touch Mobile Devices: A Case Study in TelEduc

    Science.gov (United States)

    da Silva, André Constantino; Freire, Fernanda Maria Pereira; de Arruda, Alan Victor Pereira; da Rocha, Heloísa Vieira

    2013-01-01

    e-Learning environments offer content, such text, audio, video, animations, using the Web infrastructure and they are designed to users interacting with keyboard, mouse and a medium-sized screen. Mobile devices, such as smartphones and tablets, have enough computation power to render Web pages, allowing browsing the Internet and access e-Learning…

  20. The acceptability and impact of a randomised controlled trial of welfare rights advice accessed via primary health care: qualitative study

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    Howel Denise

    2006-06-01

    Full Text Available Abstract Background Qualitative research is increasingly used alongside randomised controlled trials (RCTs to study a range of factors including participants' experiences of a trial. The need for a sound evidence base within public health will increase the need for RCTs of non-clinical interventions. Welfare rights advice has been proposed as an intervention with potential to reduce health inequalities. This qualitative study, nested within an RCT of the impact of welfare rights advice, examined the acceptability of the intervention, the acceptability of the research process and the perceived impact of the intervention. Methods 25 men and women aged 60 years or over were recruited from four general practices in Newcastle upon Tyne (UK, a sub-sample of those who consented to be contacted (n = 96 during the RCT baseline interview. Semi-structured interviews were undertaken and analysed using the Framework Method. Results Participants viewed the trial positively although, despite agreeing that the information leaflet was clear, some had agreed to participate without being fully aware of what was involved. Some participants were unaware of the implications of randomisation. Most thought it fair, but a few concerns were raised about the control condition. The intervention was acceptable and made participants feel confident about applying for benefit entitlements. 14 out of 25 participants received some financial award; median weekly income gain was £57 (€84, $101. The perceived impact of additional finances was considerable and included: increased affordability of necessities and occasional expenses; increased capacity to deal with emergencies; and a reduction in stress related to financial worries. Overall, perceived independence and ability to participate in society increased. Most participants perceived benefits to their mental well-being, but no-one reported an improvement in physical health. The RCT showed little or no effect on a wide range

  1. The social determinants of health and health service access: an in depth study in four poor communities in Phnom Penh Cambodia

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    Soeung Sann

    2012-08-01

    Full Text Available Abstract Background Increasing urbanization and population density, and persisting inequities in health outcomes across socioeconomic groupings have raised concerns internationally regarding the health of the urban poor. These concerns are also evident in Cambodia, which prompted the design of a study to identify and describe the main barriers to access to health services by the poor in the capital city, Phnom Penh. Sources and Methods Main sources of data were through a household survey, followed by in-depth qualitative interviews with mothers, local authorities and health centre workers in four very poor communities in Phnom Penh. Main findings Despite low incomes and education levels, the study communities have moderate levels of access to services for curative and preventive care. However, qualitative findings demonstrate that households contextualize poor health and health access in terms of their daily living conditions, particularly in relation to environmental conditions and social insecurity. The interactions of low education, poor living conditions and high food costs in the context of low and irregular incomes reinforce a pattern of “living from moment to moment” and results in a cycle of disadvantage and ill health in these communities. There were three main factors that put poor communities at a health disadvantage; these are the everyday living conditions of communities, social and economic inequality and the extent to which a society assesses and acts on inequities in their health care access. Conclusions In order to improve access to health and health services for the urban poor, expansion of public health functions and capacities will be required, including building partnerships between health providers, municipal authorities and civil society.

  2. Health, healthcare access, and use of traditional versus modern medicine in remote Peruvian Amazon communities: a descriptive study of knowledge, attitudes, and practices.

    Science.gov (United States)

    Williamson, Jonathan; Ramirez, Ronald; Wingfield, Tom

    2015-04-01

    There is an urgent need for healthcare research, funding, and infrastructure in the Peruvian Amazon. We performed a descriptive study of health, health knowledge and practice, and healthcare access of 13 remote communities of the Manatí and Amazon Rivers in northeastern Peru. Eighty-five adults attending a medical boat service were interviewed to collect data on socioeconomic position, health, diagnosed illnesses, pain, healthcare access, and traditional versus modern medicine use. In this setting, poverty and gender inequality were prevalent, and healthcare access was limited by long distances to the health post and long waiting times. There was a high burden of reported pain (mainly head and musculoskeletal) and chronic non-communicable diseases, such as hypertension (19%). Nearly all participants felt that they did not completely understand their diagnosed illnesses and wanted to know more. Participants preferred modern over traditional medicine, predominantly because of mistrust or lack of belief in traditional medicine. Our findings provide novel evidence concerning transitional health beliefs, hidden pain, and chronic non-communicable disease prevalence in marginalized communities of the Peruvian Amazon. Healthcare provision was limited by a breach between health education, knowledge, and access. Additional participatory research with similar rural populations is required to inform regional healthcare policy and decision-making.

  3. Managing access block.

    Science.gov (United States)

    Cameron, Peter; Scown, Paul; Campbell, Donald

    2002-01-01

    There is pessimism regarding the ability of the Acute Health Sector to manage access block for emergency and elective patients. Melbourne Health suffered an acute bed crisis in 2001 resulting in record ambulance diversions and emergency department (ED) delays. We conducted an observational study to reduce access block for emergency patients whilst maintaining elective throughput at Melbourne Health. This involved a clinician-led taskforce using previously proven principles for organisational change to implement 51 actions to improve patient access over a three-month period. The primary outcome measures were ambulance diversion, emergency patients waiting more than 12 hours for an inpatient bed, elective throughput and theatre cancellations. Despite a reduction in multi-day bed numbers all primary objectives were met, ambulance diversion decreased to minimal levels, 12-hour waits decreased by 40% and elective throughput was maintained. Theatre cancellations were also minimised. We conclude that access block can be improved by clinician-led implementation of proven process improvements over a short time frame. The ability to sustain change over the longer term requires further study.

  4. Barriers in access to healthcare in countries with different health systems. A cross-sectional study in municipalities of central Colombia and north-eastern Brazil.

    Science.gov (United States)

    Garcia-Subirats, Irene; Vargas, Ingrid; Mogollón-Pérez, Amparo Susana; De Paepe, Pierre; da Silva, Maria Rejane Ferreira; Unger, Jean Pierre; Vázquez, María Luisa

    2014-04-01

    There are few comprehensive studies available on barriers encountered from the initial seeking of healthcare through to the resolution of the health problem; in other words, on access in its broad domain. For Colombia and Brazil, countries with different healthcare systems but common stated principles, there have been no such analyses to date. This paper compares factors that influence access in its broad domain in two municipalities of each country, by means of a cross-sectional study based on a survey of a multistage probability sample of people who had had at least one health problem within the last three months (2163 in Colombia and 2155 in Brazil). The results reveal important barriers to healthcare access in both samples, with notable differences between and within countries, once differences in sociodemographic characteristics and health needs are accounted for. In the Colombian study areas, the greatest barriers were encountered in initial access to healthcare and in resolving the problem, and similarly when entering the health service in the Brazilian study areas. Differences can also be detected in the use of services: in Colombia greater geographical and economic barriers and the need for authorization from insurers are more relevant, whereas in Brazil, it is the limited availability of health centres, doctors and drugs that leads to longer waiting times. There are also differences according to enrolment status and insurance scheme in Colombia, and between areas in Brazil. The barriers appear to be related to the Colombian system's segmented, non-universal nature, and to the involvement of insurance companies, and to chronic underfunding of the public system in Brazil. Further research is required, but the results obtained reveal critical points to be tackled by health policies in both countries.

  5. The quest to make accessibility a corporate article of faith at Microsoft: case study of corporate culture and human resource dimensions.

    Science.gov (United States)

    Sandler, Leonard A; Blanck, Peter

    2005-01-01

    This case study examines efforts by Microsoft Corporation to enhance the diversity of its workforce and improve the accessibility and usability of its products and services for persons with disabilities. The research explores the relation among the Americans with Disabilities Act of 1990, corporate leadership, attitudes and behaviors towards individuals with disabilities, and dynamics that shape organizational culture at Microsoft. Implications for Microsoft, other employers, researchers, and the disability community are discussed.

  6. Retención y Penetración en Estacones de Eucalyptus Saligna. Sometidos a Tratamiento con CuSO4 y Sal CCC, en Baño Caliente y frio y Vacio-Presión

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    Escobar C. Oscar

    1987-09-01

    Full Text Available Este trabajo describe y da los resultados obtenidos con el pretratamiento de estacones de Eucalyptus saligna a tres soluciones de CUS04 y su posterior tratamiento con sales CCA (OSMOSE K-33. El sulfato de cobre se aplicó por el método de baño caliente y frío, seguido por el proceso de difusión durante una semana; para los anteriores tratamientos se usó madera verde o parcialmente seca al aire; las sales CCA se aplicaron a madera seca por el método de vacío-presión. Una de las razones para llevar a cabo este refuerzo de las sales CCA, es haber encontrado postes de eucalipto severamente atacados por hongos, en especial con pudrición blanda. Los estacones fueron tratados inicialmente con soluciones de sulfato de cobre a 1 %, 2% y 3% de concentración; luego los estacones fueron tratados con una solución de sal CCA al 2.5% de concentración por vacío-presión. Se usaron 40 estacones distribuídos en 4 grupos de 10: tres (3 grupos fueron usados para el tratamiento con las soluciones de CUS04 y solución de CCA; el grupo restante fue tratado con la sal CCA únicamente, el cual fue usado como grupo testigo para fines de comparación en los ensayos de campo (cementerios.

  7. Persistence, how do they do it? A case study of Access to Higher Education learners on a U.K. Diploma/BSc nursing programme.

    Science.gov (United States)

    Hinsliff-Smith, Kathryn; Gates, Peter; Leducq, Marion

    2012-01-01

    In 2006, the United Kingdom (U.K.) Department of Health (DoH) produced guidelines, requiring institutions to address the attrition rates for student nurses and midwives. This issue is not only a concern in the U.K. but has gained prominence in other Schools of Nursing including the U.S.A., Australia, and developing countries. Many Schools of Nursing have witnessed a change in their student population with a growing prominence of mature entrants (those over 21). Studies that focus on learner persistence, in particular mature students are relatively rare and very scarce on entrants with an Access to Higher Education (HE) qualification. This study, using focus group interviews, involved Access to HE learners who successfully progressed to a Diploma of Higher Education (DipHE)/Bachelor of Science (BSc) in Nursing at one U.K. University. The study findings indicated that Access to HE learners are able to develop a range of coping strategies in relation to academic demands and caring responsibilities, which are drawn upon in their DipHE/BSc programme. The findings have relevance for all Schools of Nursing as we face new and difficult challenges not least the global shortage of qualified nurses and the pressures placed on educators to retain student nurses.

  8. Access and use of interventions to prevent and treat malaria among pregnant women in Kenya and Mali: a qualitative study.

    Directory of Open Access Journals (Sweden)

    Jenny Hill

    Full Text Available Coverage of malaria in pregnancy interventions in sub-Saharan Africa is suboptimal. We undertook a systematic examination of the operational, socio-economic and cultural constraints to pregnant women's access to intermittent preventive treatment (IPTp, long-lasting insecticide-treated nets (LLINs and case management in Kenya and Mali to provide empirical evidence for strategies to improve coverage.Focus group discussions (FGDs were held as part of a programme of research to explore the delivery, access and use of interventions to control malaria in pregnancy. FGDs were held with four sub-groups: non-pregnant women of child bearing age (aged 15-49 years, pregnant women or mothers of children aged <1 year, adolescent women, and men. Content analysis was used to develop themes and sub-themes from the data.Women and men's perceptions of the benefits of antenatal care were generally positive; motivation among women consisted of maintaining a healthy pregnancy, disease prevention in mother and foetus, checking the position of the baby in preparation for delivery, and ensuring admission to a facility in case of complications. Barriers to accessing care related to the quality of the health provider-client interaction, perceived health provider skills and malpractice, drug availability, and cost of services. Pregnant women perceived themselves and their babies at particular risk from malaria, and valued diagnosis and treatment from a health professional, but cost of treatment at health facilities drove women to use herbal remedies or drugs bought from shops. Women lacked information on the safety, efficacy and side effects of antimalarial use in pregnancy.Women in these settings appreciated the benefits of antenatal care and yet health services in both countries are losing women to follow-up due to factors that can be improved with greater political will. Antenatal services need to be patient-centred, free-of-charge or highly affordable and accountable

  9. A Study of the Essential Oils of Four Sudanese Accessions of Basil (Ocimum basilicum L. Against Anopheles Mosquito Larvae

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    Azhari H. Nour

    2009-01-01

    Full Text Available Problem statement: Certain basil essential oils were claimed to have a larvicidal activity towards mosquito's larvae. To test this claim the essential oils of four accessions of basil grown in Sudan were selected and tested for Anopheles larvae. Malaria is the major health problem in the Sudan and the whole country is now considered endemic, with varying degrees, about 35,000 deaths every year due to malaria. Anopheles mosquito is the major vector of malaria disease in Sudan. Search for larvicidal active compound(s is one of several attempts to fine effective and affordable ways to control this mosquito. To determine the toxic effects of basil essential oils extracted by steam distillation against Anopheles larvae. Approach: For the larvicidal bioassay, three concentrations (100, 300, 500 ppm of essential oil solutions of four basil accessions were prepared; 1 mL of ethanol was used to solubilize the oil in water (999 mL. In each concentration of oil solution were inserted 20 larvae (third instars. A set of controls using 0.1% ethanol and untreated sets of larvae in (tap water, were also run for comparison. Data were evaluated through regression analysis, from the regression line; the LC50 values were read. The active ingredients were separated and/ or identified by TLC, IR and GC-MS. Results: Larvicidal activity of the essential oils is varied, lasted for about 9 h and thereafter decreased, LC50 values ranging from 190-300 ppm. Linalool, geraniol and eugenol are active components of basil essential oil against Anopheles larvae. Two accessions were caused 100% mortality at a concentration range 300-500 ppm for 3 h. Conclusion: These results indicated that basil essential oils have larvicidal activity towards Anopheles larvae. Therefore, could be affordable way to control this mosquito.

  10. Materials Data Infrastructure: A Case Study of the Citrination Platform to Examine Data Import, Storage, and Access

    Science.gov (United States)

    O'Mara, Jordan; Meredig, Bryce; Michel, Kyle

    2016-08-01

    Considerations are presented around the design of a materials data infrastructure including import of structured and unstructured data, storage of that data for archival and retrieval, and access to that data through programmatic and graphical interfaces. In particular, the choices around technologies used in such an infrastructure, the benefits and drawbacks of those technologies, and their impact on the experience of users of that system are presented. The Citrination platform is used as an example of a materials data infrastructure and the choices made around architecture are discussed.

  11. An analysis on domestic users’ awareness towards Open Access resources:A case study of university users in Nanjing

    Institute of Scientific and Technical Information of China (English)

    SHEN; Kun; HUANG; Shuiqing

    2009-01-01

    Based on a survey of university teachers and students in Nanjing area of 2007,this article analyzes domestic users’awareness towards Open Access(OA),and the changes by comparing the corresponding data of 2006.The survey shows that the research evaluation system,the quality of literature and the payment for OA publications are the important factors for university users to choose OA or not.The authors finally suggest that the current research evaluation system should be reformed to accommodate OA journals.Meanwhile,great efforts should be devoted to improve the quality of OA literatures,and the governments and research institutions should provide stronger support than before.

  12. Hemodialysis access procedures

    Science.gov (United States)

    ... this page: //medlineplus.gov/ency/article/007641.htm Hemodialysis access procedures To use the sharing features on ... An access is needed for you to get hemodialysis. The access is where you receive hemodialysis . Using ...

  13. Green open access in computer science – an exploratory study on author-based self-archiving awareness, practice, and inhibitors

    Directory of Open Access Journals (Sweden)

    Daniel Graziotin

    2014-06-01

    Full Text Available Access to the work of others is something that is too often taken for granted, yet problematic and difficult to be obtained unless someone pays for it. Green and gold open access are claimed to be a solution to this problem. While open access is gaining momentum in some fields, there is a limited and seasoned knowledge about self-archiving in computer science. In particular, there is an inadequate understanding of author-based self-archiving awareness, practice, and inhibitors. This article reports an exploratory study of the awareness of self-archiving, the practice of self-archiving, and the inhibitors of self-archiving among authors in an Italian computer science faculty. Forty-nine individuals among interns, PhD students, researchers, and professors were recruited in a questionnaire (response rate of 72.8%. The quantitative and qualitative responses suggested that there is still work needed in terms of advocating green open access to computer science authors who seldom self-archive and when they do, they often infringe the copyright transfer agreements (CTAs of the publishers. In addition, tools from the open-source community are needed to facilitate author-based self-archiving, which should comprise of an automatic check of the CTAs. The study identified nine factors inhibiting the act of self-archiving among computer scientists. As a first step, this study proposes several propositions regarding author-based self-archiving in computer science that can be further investigated. Recommendations to foster self-archiving in computer science, based on the results, are provided.

  14. A review of existing studies reporting the negative effects of alcohol access and positive effects of alcohol control policies on interpersonal violence

    Directory of Open Access Journals (Sweden)

    Jessica Laura Fitterer

    2015-11-01

    Full Text Available Alcohol consumption often leads to elevated rates of violence yet alcohol access policies continue to relax across the globe. Our review establishes the extent alcohol policy can moderate violent crime through alcohol availability restrictions. Results were informed from comprehensive selection of peer-reviewed journals from 1950 to October 2015. Our search identified 88 relevant studies on alcohol access and violence conducted across 12 countries. Seventeen studies included quasi-control design, and 23 conducted intervention analysis. Seventy-two (82% reported a significant relationship between alcohol access and violent offences. Alcohol outlet studies reported the greatest percentage of significant results (93%, with trading hours (63%, and alcohol price following (58%. Results from baseline studies indicated the effectiveness of increasing the price of commonly consumed alcohol, restricting the hours of alcohol trading, and limiting the number of alcohol outlets per region to prevent violent offences. Unclear are the effects of tax reductions, restriction of on-premises re-entry, and different outlet types on violent crime. Further, the generalization of statistics over broad areas and the low number of control/intervention studies poses some concern for confounding or correlated effects on study results, and amount of information for local level prevention of interpersonal violence. Future studies should focus on gathering longitudinal data, validating models, limiting crime data to peak drinking days and times, and wherever possible collecting the joint distribution between violent crime, intoxication, and place. A greater up take of local level analysis will benefit studies comparing the influence of multiple alcohol establishment types by relating the location of a crime to establishment proximity. Despite, some uncertainties particular studies showed that even modest policy changes such as 1% increases in alcohol price, one hour changes

  15. A Review of Existing Studies Reporting the Negative Effects of Alcohol Access and Positive Effects of Alcohol Control Policies on Interpersonal Violence.

    Science.gov (United States)

    Fitterer, Jessica L; Nelson, Trisalyn A; Stockwell, Timothy

    2015-01-01

    Alcohol consumption often leads to elevated rates of violence yet alcohol access policies continue to relax across the globe. Our review establishes the extent alcohol policy can moderate violent crime through alcohol availability restrictions. Results were informed from comprehensive selection of peer-reviewed journals from 1950 to October 2015. Our search identified 87 relevant studies on alcohol access and violence conducted across 12 countries. Seventeen studies included quasi-control design, and 23 conducted intervention analysis. Seventy-one (82%) reported a significant relationship between alcohol access and violent offenses. Alcohol outlet studies reported the greatest percentage of significant results (93%), with trading hours (63%), and alcohol price following (58%). Results from baseline studies indicated the effectiveness of increasing the price of commonly consumed alcohol, restricting the hours of alcohol trading, and limiting the number of alcohol outlets per region to prevent violent offenses. Unclear are the effects of tax reductions, restriction of on-premises re-entry, and different outlet types on violent crime. Further, the generalization of statistics over broad areas and the low number of control/intervention studies poses some concern for confounding or correlated effects on study results, and amount of information for local-level prevention of interpersonal violence. Future studies should focus on gathering longitudinal data, validating models, limiting crime data to peak drinking days and times, and wherever possible collecting the joint distribution between violent crime, intoxication, and place. A greater uptake of local-level analysis will benefit studies comparing the influence of multiple alcohol establishment types by relating the location of a crime to establishment proximity. Despite, some uncertainties particular studies showed that even modest policy changes, such as 1% increases in alcohol price, 1 h changes to closing times

  16. Development and Validation of Project Management Constructs of Security Door Access Control Systems: A Pilot Study in Macau

    Directory of Open Access Journals (Sweden)

    Chan Brenda Wing Han

    2016-06-01

    Full Text Available A Security Door Access Control System (SDACS project involves a number of teams from different organizations with diverse project goals. One of the main challenges of such projects is the lack of a standard approach or common understanding to achieve a common goal among project parties. This research examines various management concerns for SDACS projects, highlights the expected common understanding for project participants, develops the project management constructs, and emphasizes on the resulting value of the project to all participants. A two-stage process of scale development and validation was conducted. First, six generic constructs were identified based on the Security Access Control System Framework. Next, a multi-item scale for each construct was developed with reference to the Result-Oriented Management Framework. Expert judges were invited to conduct manual sorting of the items iteratively until reliability and validity was reached. In the next stage, further refinement and validation were carried out with a synthesized survey instrument and a series of statistical testing followed. The finalized SDACS project management constructs and the related findings help reinforce the importance of a standardized management practice for SDACS projects. The value of this research not only benefits SDACS project managers but everyone who works on the project.

  17. Lexical access in children with and without specific language impairment: a cross-modal picture-word interference study.

    Science.gov (United States)

    Seiger-Gardner, Liat; Schwartz, Richard G

    2008-01-01

    Two experiments examined the time course of lexical information availability in 20 adults, 20 children (8;0-10;0) with typical language development, and in 20 children (8;0-10;0) with specific language impairment. A cross-modal picture-word interference paradigm was used in which participants named the pictures as quickly as possible while ignoring the phonologically and semantically related interfering words. A novel early phonological interference effect appeared in all groups. Similar temporal patterns were revealed for the adults and the typical language development group, supporting the notion of similar underlying lexicalization mechanisms. Parametric differences were found in overall response times and errors, with children responding slower and producing more errors than adults. The presence of a phonological facilitation effect suggests that children with specific language impairment utilize phonological primes to ease lexical access. Children with specific language impairment exhibited lingering semantic inhibition and a late semantic inhibition effect suggesting difficulty in processing semantic information. Data from all participants support the cascaded processing model of lexical access.

  18. Fishing Access Areas

    Data.gov (United States)

    Vermont Center for Geographic Information — The Vermont Fish & Wildlife Department maintains developed fishing access areas. These sites provide public access to waters in Vermont for shore fishing...

  19. Addressing the fear and consequences of stigmatization - a necessary step towards making HAART accessible to women in Tanzania: a qualitative study

    Directory of Open Access Journals (Sweden)

    Gerstoft Jan

    2011-08-01

    Full Text Available Abstract Background Highly Active Antiretroviral Therapy (HAART has been available free of charge in Tanga, Tanzania since 2005. However we have found that a high percentage of women referred from prevention of mother-to-child transmission services to the Care and Treatment Clinics (CTC for HAART never registered at the CTCs. Few studies have focused on the motivating and deterring factors to presenting for HAART particularly in relation to women. This study seeks to remedy this gap in knowledge. Methodology A qualitative approach using in-depth interviews and focus group discussions was chosen to understand these issues as perceived and interpreted by HIV infected women themselves. Results The main deterrent to presenting for treatment appears to be fear of stigmatization including fear of ostracism from the community, divorce and financial distress. Participants indicated that individual counselling and interaction with other people living with HIV encourages women, who are disinclined to present for HAART, to do so, and that placing the entrance to the CTC so as to provide discrete access increases the accessibility of the clinic. Conclusion Combating stigma in the community, although it is essential, will take time. Therefore necessary steps towards encouraging HIV infected women to seek treatment include reducing self-stigma, assisting them to form empowering relationships and to gain financial independence and emphasis by example of the beneficial effect of treatment for themselves and for their children. Furthermore ensuring a discrete location of the CTC can increase its perceived accessibility.

  20. JISC Open Access Briefing Paper

    OpenAIRE

    Swan, Alma

    2005-01-01

    What Open Access is. What Open Access is not. How is Open Access provided? Open Access archives or repositories. Open Access journals. Why should authors provide Open Access to their work? Further information and resources

  1. Querying Schemas With Access Restrictions

    CERN Document Server

    Benedikt, Michael; Ley, Clemens

    2012-01-01

    We study verification of systems whose transitions consist of accesses to a Web-based data-source. An access is a lookup on a relation within a relational database, fixing values for a set of positions in the relation. For example, a transition can represent access to a Web form, where the user is restricted to filling in values for a particular set of fields. We look at verifying properties of a schema describing the possible accesses of such a system. We present a language where one can describe the properties of an access path, and also specify additional restrictions on accesses that are enforced by the schema. Our main property language, AccLTL, is based on a first-order extension of linear-time temporal logic, interpreting access paths as sequences of relational structures. We also present a lower-level automaton model, Aautomata, which AccLTL specifications can compile into. We show that AccLTL and A-automata can express static analysis problems related to "querying with limited access patterns" that h...

  2. Experimental study on radiation effects in floating gate read-only-memories and static random access memories

    Institute of Scientific and Technical Information of China (English)

    He Chao-Hui; Li Yong-Hong

    2007-01-01

    Radiation effects of the floating gate read-only-memory (FG ROM) and the static random access memory (SRAM)have been evaluated using the 14 MeV neutron and 31.9MeV proton beams and Co-60 γ-rays. The neutron fluence,when the first error occurs in the FG ROMs, is at least 5 orders of magnitude higher than that in the SRAMs, and the proton fluence, 4 orders of magnitude higher. The total dose threshold for Co-60 γ-ray irradiation is about 104 rad (Si)for both memories. The difference and similarity are attributed to the structure of the memory cells and the mechanism of radiation effects. It is concluded that the FG ROMs are more reliable as semiconductor memories for storing data than the SRAMs, when they are used in the satellites or space crafts exposed to high energy particle radiation.

  3. Feasibility study of context-awareness device Comfort calculation methods and their application to comfort-based access control

    DEFF Research Database (Denmark)

    Guo, Jingjing; Jensen, Christian D.; Ma, Jianfeng

    2016-01-01

    . This allows us to analyze the influence of the context on the comfort level of the device in different perceived contexts in the real world. Moreover, to demonstrate the utility of our device comfort calculation methods, we apply it to comfort-based access control for mobile devices. We present the policy......Mobile devices have become more powerful and are increasingly integrated in the everyday life of people; from playing games, taking pictures and interacting with social media to replacing credit cards in payment solutions. Some actions may only be appropriate in some situations, so the security...... of a mobile device is therefore increasingly linked to its context, such as its location, surroundings (e.g. objects in the immediate environment) and so on. However, situational awareness and context are not captured by traditional security models. In this paper, we examine the notion of Device Comfort...

  4. Access to Local Agriculture and Weight Outcomes

    OpenAIRE

    Joshua P. Berning

    2012-01-01

    Recent studies examine the impact of the built environment on health outcomes such as obesity. Several studies find for certain populations that access to unhealthy food has a positive effect on obesity, whereas access to healthy choices has a negative effect. Given the growth and popularity of locally grown food, we examine how individual weight outcomes are affected by access to direct-to-consumer local food. After controlling for potential endogeneity, we find that greater access to local ...

  5. Relationships, Expertise, Incentives, and Governance: Supporting Care Home Residents' Access to Health Care. An Interview Study From England

    Science.gov (United States)

    Goodman, Claire; Davies, Sue L.; Gordon, Adam L.; Meyer, Julienne; Dening, Tom; Gladman, John R.F.; Iliffe, Steve; Zubair, Maria; Bowman, Clive; Victor, Christina; Martin, Finbarr C.

    2015-01-01

    Objectives To explore what commissioners of care, regulators, providers, and care home residents in England identify as the key mechanisms or components of different service delivery models that support the provision of National Health Service (NHS) provision to independent care homes. Methods Qualitative, semistructured interviews with a purposive sample of people with direct experience of commissioning, providing, and regulating health care provision in care homes and care home residents. Data from interviews were augmented by a secondary analysis of previous interviews with care home residents on their personal experience of and priorities for access to health care. Analysis was framed by the assumptions of realist evaluation and drew on the constant comparative method to identify key themes about what is required to achieve quality health care provision to care homes and resident health. Results Participants identified 3 overlapping approaches to the provision of NHS that they believed supported access to health care for older people in care homes: (1) Investment in relational working that fostered continuity and shared learning between visiting NHS staff and care home staff, (2) the provision of age-appropriate clinical services, and (3) governance arrangements that used contractual and financial incentives to specify a minimum service that care homes should receive. Conclusion The 3 approaches, and how they were typified as working, provide a rich picture of the stakeholder perspectives and the underlying assumptions about how service delivery models should work with care homes. The findings inform how evidence on effective working in care homes will be interrogated to identify how different approaches, or specifically key elements of those approaches, achieve different health-related outcomes in different situations for residents and associated health and social care organizations. PMID:25687930

  6. Evaluating a Human Rights-Based Advocacy Approach to Expanding Access to Pain Medicines and Palliative Care: Global Advocacy and Case Studies from India, Kenya, and Ukraine.

    Science.gov (United States)

    Lohman, Diederik; Amon, Joseph J

    2015-12-10

    Palliative care has been defined as care that is person-centered and attentive to physical symptoms and psychological, social, and existential distress in patients with severe or life-threatening illness. The identification of access to palliative care and pain treatment as a human rights issue first emerged among palliative care advocates, physicians, and lawyers in the 1990s, with a basis in the right to health and the right to be free from cruel, inhuman, and degrading treatment. Using a case study approach, we evaluate the results of a human rights-based advocacy approach on access to pain medicine and palliative care in India, Kenya, and Ukraine. In each country, human rights advocacy helped raise awareness of the issue, identify structural barriers to care, define government obligations, and contribute to the reform of laws, policies, and practices impeding the availability of palliative care services. In addition, advocacy efforts stimulated civil society engagement and high-level political leadership that fostered the implementation of human rights-based palliative care programs. Globally, access to palliative care was increasingly recognized by human rights bodies and within global health and drug policy organizations as a government obligation central to the right to health.

  7. Facilities for external radiation accessible for investigation on biological studies - progress report may 2004; Les installations d'irradiation externe accessibles aux etudes de biologie - etat d'avancement mai 2004

    Energy Technology Data Exchange (ETDEWEB)

    Gaillard-Lecanu, E. [CEA Fontenay aux Roses (DSV/Carmin), 92 (France); Authier, N.; Verrey, B. [CEA Valduc, Dept. Recherche sur les Materiaux Nucleaires, 21 - Is-sur-Tille (France); Bailly, I. [CEA Bruyeres le Chatel, 91 (France). Dept. de Physique Theorique et Appliquee; Baldacchino, G.; Pin, S.; Pommeret, S.; Renault, J.Ph. [CEA Saclay, Dept. de Recherche sur Etat Condense, les Atomes et les Molecules, 91 - Gif sur Yvette (France); Bordy, J.M. [CEA Saclay, Dir. de la Recherche Technologique (DRT/DETECS/LNHB/LMD), 91 - Gif sur Yvette (France); Coffigny, H. [CEA Fontenay aux Roses, Dept. de Radiobiologie et de Radiopathologie, 92 (France); Cortela, L. [CEA Grenoble, ARC-Nucleart, 38 (France); Duval, D. [CEA Saclay, Schering - CIS bio International, 91 - Gif sur Yvette (France); Leplat, J.J. [CEA Saclay (DSV/DRR/LREG), 91 - Gif sur Yvette (France); Poncy, J.L. [CEA Fontenay aux Roses (DSV/DRR/SRCA), 92 (France); Testard, I. [CEA Caen (DSV/DRR/LRO-LARIA), 14 - Caen (France); Thuret, J.Y. [CEA Saclay (DSV/DBJC/SBGM), 91 - Gif sur Yvette (France)

    2004-07-01

    The Life Science Division of the Atomic Energy Commission is making an inventory of the various radiation sources accessible for investigation on the biological effects of ionizing radiation. In this field, a wide range of studies is being carried out at the Life Science Division, attempting to characterize the kind of lesions with their early biological consequences (on the various cell compartments) and their late biological consequences (deterministic or stochastic effects), in relation to the radiation type and dose, especially at low doses. Several experimental models are available: plants, bacteria, eukaryotic cells from yeast up to mammalian cells and in vivo studies, mostly on rodents, in order to characterize the somatic late effects and the hereditary effects. Due to the significant cost of these facilities, also to their specific properties (nature of the radiation, dose and dose rate, possible accuracy of the irradiation at the molecular level), the closeness is no longer the only criteria for biologists to make a choice. The current evolution is to set up irradiation infrastructures combining ionizing radiation sources themselves and specific tools dedicated to biological studies: cell or molecular biology laboratories, animal facilities. The purpose, in this new frame, is to provide biologists with the most suitable facilities, and, if possible, to change these facilities according to requirements in radiobiology. In this report, the basics of interactions of ionizing radiation with biological tissues are briefly introduced, followed by a presentation of some of the facilities available at the CEA for radiobiological studies. This panorama is not a comprehensive one, new data will be included as they advance, whether reporting existing facilities or if a new one is developed. (authors)

  8. 网络化HRM系统访问权限控制方法研究%Study of Access Control Method of HRM Svstem Based on Network

    Institute of Scientific and Technical Information of China (English)

    邱占芝; 马海瀚

    2011-01-01

    研究了网络化人力资源管理(HRM)系统中功能模块和页面的访问权限控制方法与实现问题.采用基于角色的访问控制(RBAC,Role-Based Access Control)模型,实现网络化HRM系统的访问权限控制,其最大特点是:通过引入角色(R)的概念,建立用户(U)和权限(P)之间的关联,通过为用户分配角色、为角色分配权限,达到控制用户访问权限的目的.某大型跨地域HRM系统的成功实施表明:基于RBAC模型的访问权限控制方法,不仅简化用户权限配置工作量,而且大大提高系统与数据的安全性和可靠性,使得系统具有方便性、灵活性、安全性和易扩展性.%Access control of the HRM system is studied based on role-based access control model to establish the relationship between the user and the permissions by bring in the role. The model controls the permissions by assigning the task to the roles and giving roles to users. The HRM system proves that the role-based access control model is a good solution of the access control by reducing the complexity and cost of security administration in large network applications, and protecting the data at the same time.

  9. Who gets prompt access to artemisinin-based combination therapy? A prospective community-based study in children from rural Kilosa, Tanzania.

    Directory of Open Access Journals (Sweden)

    Daudi O Simba

    Full Text Available BACKGROUND: Effective and timely case management remains one of the fundamental pillars for control of malaria. Tanzania introduced artemisinin-combination therapy [ACT] for uncomplicated malaria; however, the policy change is challenged by limited availability of ACTs due to high cost. This study aimed to determine factors influencing prompt access to ACTs among febrile children in rural Kilosa, Tanzania. METHODS AND FINDINGS: In a community-based study, 1,235 randomly selected children under five were followed up weekly for six months, in 2008. Using a structured questionnaire, children's caretakers were asked about the child's febrile history in the last seven days, and treatment actions including timing, medicines used and source of care. Caretakers' knowledge about malaria and socioeconomic and demographic data were also obtained. About half of followed-up children had at least one episode of fever. Less than half (44.8% of febrile children were taken to government facilities. Almost one-third (37.6%; 95% CI 33.1-42.1 of febrile children had prompt access to ACT. Care-seeking from a government facility was the overriding factor, increasing the likelihood of prompt access to an ACT 18 times (OR 17.7; 95% CI 10.55-29.54; adjusted OR 16.9; 95% CI 10.06-28.28. Caretakers from the better-off household (3rd-5th quintiles were more likely to seek care from government facilities (OR 3.66; 95% CI 2.56-5.24; adjusted OR 1.80; 95% CI 1.18-2.76. The majority of antimalarials accessed by the poor were ineffective [86.0%; 295/343], however, they paid more for them (median Tsh 500 compared to the better-offs (median Tsh 0. CONCLUSIONS: Prompt access to ACT among febrile children was unacceptably low, due mainly to limited availability of subsidised ACT at the location where most caretakers sought care. There is urgent need to accelerate implementation of strategies that will ensure availability of ACT at an affordable price in remote rural areas, where

  10. Regional Geologic Map of San Andreas and Related Faults in Carrizo Plain, Temblor, Caliente and La Panza Ranges and Vicinity, California; A Digital Database

    Science.gov (United States)

    Dibblee, T. W.; Digital database compiled by Graham, S. E.; Mahony, T.M.; Blissenbach, J.L.; Mariant, J.J.; Wentworth, C.M.

    1999-01-01

    This Open-File Report is a digital geologic map database. The report serves to introduce and describe the digital data. There is no paper map included in the Open-File Report. The report includes PostScript and PDF plot files that can be used to plot images of the geologic map sheet and explanation sheet. This digital map database is prepared from a previously published map by Dibblee (1973). The geologic map database delineates map units that are identified by general age, lithology, and clast size following the stratigraphic nomenclature of the U.S. Geological Survey. For descriptions of the units, their stratigraphic relations, and sources of geologic mapping, consult the explanation sheet (of99-14_4b.ps or of99-14_4d.pdf), or the original published paper map (Dibblee, 1973). The scale of the source map limits the spatial resolution (scale) of the database to 1:125,000 or smaller. For those interested in the geology of Carrizo Plain and vicinity who do not use an ARC/INFO compatible Geographic Information System (GIS), but would like to obtain a paper map and explanation, PDF and PostScript plot files containing map images of the data in the digital database, as well as PostScript and PDF plot files of the explanation sheet and explanatory text, have been included in the database package (please see the section 'Digital Plot Files', page 5). The PostScript plot files require a gzip utility to access them. For those without computer capability, we can provide users with the PostScript or PDF files on tape that can be taken to a vendor for plotting. Paper plots can also be ordered directly from the USGS (please see the section 'Obtaining Plots from USGS Open-File Services', page 5). The content and character of the database, methods of obtaining it, and processes of extracting the map database from the tar (tape archive) file are described herein. The map database itself, consisting of six ARC/INFO coverages, can be obtained over the Internet or by magnetic tape

  11. Accessibility and sensory experiences

    DEFF Research Database (Denmark)

    Ryhl, Camilla

    2010-01-01

    This article introduces a new design concept; sensory accessibility. While acknowledging the importance of sensory experiences in architectural quality, as well as the importance of accommodating user needs the concept combines three equally important factors; architecture, the senses and accessi......This article introduces a new design concept; sensory accessibility. While acknowledging the importance of sensory experiences in architectural quality, as well as the importance of accommodating user needs the concept combines three equally important factors; architecture, the senses...... and accessibility. Sensory accessibility accommodates aspects of a sensory disability and describes architectural design requirements needed to ensure access to architectural experiences. In the context of architecture accessibility has become a design concept of its own. It is generally described as ensuring...... physical access to the built environment by accommodating physical disabilities. While the existing concept of accessibility ensures the physical access of everyone to a given space, sensory accessibility ensures the choice of everyone to stay and be able to participate and experience....

  12. CERN Access Cards and Access Authorisations

    CERN Multimedia

    2003-01-01

    From the 01/05/2003, all problems relating to access cards and refusal of access to any zone, building or experiment within CERN must be addressed to the Centrale de Surveillance des Accès (CSA building 120) on 78877 or send an e-mail to Access.Surveillance@cern.ch. The responsibles for CERN access control have put into place a procedure with the CSA, Service Enregistrement and the Technical Control Room, to make sure that all problems get resolved in a proper and timely manner.

  13. Process quality of diabetes care under favorable access to healthcare: a 2-year longitudinal study using claims data in Japan

    Science.gov (United States)

    Tanaka, Hirokazu; Tomio, Jun; Sugiyama, Takehiro; Kobayashi, Yasuki

    2016-01-01

    Objective To investigate the process quality of diabetes care provided to patients under universal health insurance coverage. Research design and methods Using claim data for 570 363 beneficiaries aged 20–69 years who were covered by Health Insurance Societies between April 2010 and March 2012, we identified patients with type 2 diabetes who made follow-up visits at least every 3 months in the first year (subject-identification year). We assessed patient adherence to follow-up visits in the second year (quality-reporting year), calculated the proportion of patients that completed routine examinations for glycemic control and complications, and evaluated associations between characteristics of patients and quality indicators using multivariable logistic regression models. Results We identified 12 909 patients with diabetes; in the subject-identification year, 1415 (11.0%) had prescriptions for insulin injections, 6049 (46.9%) had prescriptions for oral antihyperglycemic agents, and 5445 (42.2%) had no diabetes-related prescriptions. Among patients using medication, 474 (6.4%) dropped out in the quality-reporting year. The adjusted percentages of quality indicators among patients using oral antihyperglycemic agents were 95.8% for glycated hemoglobin, 35.6% for eye examinations, 15.4% for urine microalbumin excretion, and 90.6% for serum lipids; the percentages among patients taking insulin were the same or higher. Annual testing for glycated hemoglobin was less frequent in patients aged 40–49 years than in patients aged 60–69 years (OR 0.77; 95% CI 0.66 to 0.91). Fewer men than women (OR 0.59; 95% CI 0.54 to 0.64), and fewer patients aged 40–49 years than those aged 60–69 years (OR 0.56; 95% CI 0.50 to 0.63) tended to complete routine eye examinations. Conclusions Screening for retinopathy and nephropathy was less frequent than required despite favorable conditions for access to healthcare in Japan. Suboptimal quality of care appeared to

  14. 77 FR 10737 - Combined Notice of Filings #1

    Science.gov (United States)

    2012-02-23

    ... following electric rate filings: Docket Numbers: ER12-21-003. Applicants: Agua Caliente Solar, LLC. Description: Notice of Change in Status of Agua Caliente Solar, LLC. Filed Date: 2/14/12. Accession...

  15. 76 FR 82291 - Combined Notice of Filings #2

    Science.gov (United States)

    2011-12-30

    ...: Agua Caliente Solar, LLC. Description: Notice of Change in Status and Request for Expedited Action of Agua Caliente Solar, LLC. Filed Date: 12/20/11. Accession Number: 20111220-5086. Comments Due: 5...

  16. Case studies in open access publishing. Number one. The Electronic Journal of Information Technology in Construction (ITcon: an open access journal using an un-paid, volunteer-based organization.

    Directory of Open Access Journals (Sweden)

    Bo-Christer Bjoerk

    2006-01-01

    Full Text Available This case study is based on the experiences with the Electronic Journal of Information Technology in Construction (ITcon, founded in 1995. This journal is an example of a particular category of open access journals, which use neither author charges nor subscriptions to finance their operations, but rely largely on unpaid voluntary work in the spirit of the open source movement. The journal has, after some initial struggle, survived its first decade and is now established as one of half-a-dozen peer reviewed journals in its field. The journal publishes articles as they become ready, but creates virtual issues through alerting messages to “subscribers”. It has also started to publish special issues, since this helps to attract submissions, and also helps in sharing the work-load of review management. From the start the journal adopted a rather traditional layout of the articles. After the first few years the HTML version was dropped and papers are only published in PDF format. The journal has recently been benchmarked against the competing journals in its field. Its acceptance rate of 53% is slightly higher and its average turnaround time of seven months almost a year faster compared to those journals in the sample for which data could be obtained. The server log files for the past three years have also been studied. Our overall experience demonstrates that it is possible to publish this type of OA journal, with a yearly publishing volume equal to a quarterly journal and involving the processing of some fifty submissions a year, using a networked volunteer-based organization.

  17. The Memory Metal Minimal Access Cage: A New Concept in Lumbar Interbody Fusion—A Prospective, Noncomparative Study to Evaluate the Safety and Performance

    Directory of Open Access Journals (Sweden)

    D. Kok

    2012-01-01

    Full Text Available Study Design/Objective. A single-centre, prospective, non-comparative study of 25 patients to evaluate the performance and safety of the Memory Metal Minimal Access Cage (MAC in Lumbar Interbody Fusion. Summary of Background Data. Interbody fusion cages in general are designed to withstand high axial loads and in the meantime to allow ingrowth of new bone for bony fusion. In many cages the contact area with the endplate is rather large leaving a relatively small contact area for the bone graft with the adjacent host bone. MAC is constructed from the memory metal Nitinol and builds on the concept of sufficient axial support in combination with a large contact area of the graft facilitating bony ingrowth and ease in minimal access implantation due to its high deformability. Methods. Twenty five subjects with a primary diagnosis of disabling back and radicular leg pain from a single level degenerative lumbar disc underwent an interbody fusion using MAC and pedicle screws. Clinical performance was evaluated prospectively over 2 years using the Oswestry Disability Index (ODI, Short Form 36 questionnaire (SF-36 and pain visual analogue scale (VAS scores. The interbody fusion status was assessed using conventional radiographs and CT scan. Safety of the device was studied by registration of intra- and post-operative adverse effects. Results. Clinical performance improved significantly (P<.0018, CT scan confirmed solid fusion in all 25 patients at two year follow-up. In two patients migration of the cage occurred, which was resolved uneventfully by placing a larger size at the subsequent revision. Conclusions. We conclude that the Memory Metal Minimal Access Cage (MAC resulted in 100% solid fusions in 2 years and proved to be safe, although two patients required revision surgery in order to achieve solid fusion.

  18. Access to Difficult-to-reach Population Subgroups: A Family Midwife Based Home Visiting Service for Implementing Nutrition-related Preventive Activities - A Mixed Methods Explorative Study

    Directory of Open Access Journals (Sweden)

    Helena Walz

    2015-08-01

    Full Text Available Health and social inequality are tightly linked and still pose an important public health problem. However, vulnerable and disadvantaged populations are difficult to reach for health-related interventions. Given the long-lasting effects of an adverse, particular nutrition-related, intrauterine and neonatal environment on health development (perinatal programming, an early and easy access is essential for sustainable interventions. The goal of this explorative study was therefore to elucidate whether an existing access of family midwives (FMs to families in need of support could be an option to implement effective public health and nutrition interventions. To that end three research objectives were formulated: (1 to determine whether a discernible impact of home visits by FMs can be described; (2 to identify subgroups among these families in need of more specific interventions; (3 to determine how relevant nutrition-related topics are for both FMs and the supported families. For addressing these objectives a mixed methods design was used: Routine documentation data from 295 families visited by a family midwife (FM were analyzed (secondary analysis, and structured expert interviews with FMs were conducted and analyzed. Study reporting followed the STROBE (STrengthening the Reporting of OBservational studies in Epidemiology statement. Based on the FMs reports, a significant improvement (p < 0.001 regarding psycho-social variables could be determined after the home visits. Single mothers, however, seemed to benefit less from the FMs service compared to their counterparts (p = 0.015. Nutritional counseling was demanded by 89% of the families during the home visits. In addition, nutrition-related topics were reported in the interviews to be of high interest to both families and the FMs. Based on the obtained results it is concluded that FMs home visits offer a promising access to vulnerable and disadvantaged families for implementing nutrition

  19. A comparison of the sealing ability of various temporary restorative materials to seal the access cavity: An in vitro study

    Directory of Open Access Journals (Sweden)

    Aji Markose

    2016-01-01

    Full Text Available Introduction: In multiple-appointment root canal treatment, a temporary filling material is used to seal the access cavity between visits. The primary function of this material is to prevent the contamination of the root canal system by fluids, organic debris, and bacteria from the oral cavity. Material and Methods: A total of fifty extracted noncarious unrestored human maxillaryanterior teeth with intact crowns and roots were selected The canals were instrumented using stepback technique and sodium hypochlorite (3% and hydrogen peroxide (3% were used as irrigants for each specimen alternatively. The coronal two-thirds of each canal were flared using Gates-Glidden drills up to no. 3 size and obturated with Gutta-percha using zinc oxide-eugenol (ZnOE as sealer. The teeth were then randomly selected and divided into six groups out of which four were experimental groups and two control groups. The teeth were then immersed in 2% methylene blue dye solution for 3 days. All sealing materials and Gutta-percha were gently removed from the walls of the canal, and the entire circumference of the canal wall examined for dye penetration. Results: The lowest mean leakage was in the Fermit-N group followed by Cavit-W, ZnOE, intermediate restorative materials (IRM, and positive control. Conclusion: Fermit-N showed better sealing ability compared to cavit, ZnOE and IRM.

  20. Tryptophan exposure and accessibility in the chitooligosaccharide-specific phloem exudate lectin from pumpkin (Cucurbita maxima). A fluorescence study.

    Science.gov (United States)

    Narahari, Akkaladevi; Swamy, Musti J

    2009-10-06

    The exposure and accessibility of the tryptophan residues in the chitooligosaccharide-specific pumpkin (Cucurbita maxima) phloem exudate lectin (PPL) have been investigated by fluorescence spectroscopy. The emission lambda(max) of native PPL, seen at 338nm was red-shifted to 348nm upon denaturation by 6M Gdn.HCl in the presence of 10mM beta-mercaptoethanol, indicating near complete exposure of the tryptophan residues to the aqueous medium, whereas a blue-shift to 335nm was observed in the presence of saturating concentrations of chitotriose, suggesting that ligand binding leads to a decrease in the solvent exposure of the tryptophan residues. The extent of quenching was maximum with the neutral molecule, acrylamide whereas the ionic species, iodide and Cs(+) led to significantly lower quenching, which could be attributed to the presence of charged amino acid residues in close proximity to some of the tryptophan residues. The Stern-Volmer plot for acrylamide was linear for native PPL and upon ligand binding, but became upward curving upon denaturation, indicating that the quenching occurs via a combination of static and dynamic mechanisms. In time-resolved fluorescence experiments, the decay curves could be best fit to biexponential patterns, for native protein, in the presence of ligand and upon denaturation. In each case both lifetimes systematically decreased with increasing acrylamide concentrations, indicating that quenching occurs predominantly via a dynamic process.

  1. The use of conversation analysis to study social accessibility of an online support group on eating disorders.

    Science.gov (United States)

    Stommel, Wyke; Meijman, Frans J

    2011-06-01

    We conducted a conversation analysis of 21 threads initiated by newcomers of an online support group (OSG) on eating disorders, to examine the discursive process of entering such a group. The analysis revealed three important issues. First, many newcomers articulate that the step to join the group is extremely difficult. Second, a presentation of the self in terms of a diagnosis works as a legitimization for joining the forum. The data suggest that participants who do not fulfil the conditions for such a legitimization do not join the forum. Third, the option of acquiring a serious symptom as a solution to the legitimization problem is offered by one of the regular members. Hence, the newcomers' discourse reveals issues relevant to the accessibility for undiagnosed sufferers. We discuss these findings theoretically as a phenomenon of self-presentation in relation to community norms. The analysis generates the hypothesis that newcomers are confronted with implicit norms regarding membership legitimacy that they should obey in their self-presentation, although they may not be ready yet to actually do so. OSGs should find strategies to facilitate various possibilities for newcomers to present themselves to the group while becoming a member.

  2. Open Access Publishing: What Authors Want

    Science.gov (United States)

    Nariani, Rajiv; Fernandez, Leila

    2012-01-01

    Campus-based open access author funds are being considered by many academic libraries as a way to support authors publishing in open access journals. Article processing fees for open access have been introduced recently by publishers and have not yet been widely accepted by authors. Few studies have surveyed authors on their reasons for publishing…

  3. Cost Vs. Redundancy in FTTH Access Networks

    DEFF Research Database (Denmark)

    Haraldsson, Gustav Helgi; Pedersen, Jens Myrup

    2006-01-01

    This paper studies the feasibility of offering redundancy within the access network by planning an access network using the ear topology. This proposed network is compared to a traditional tree structured access network. The basic idea of the ear topology is to offer two individual fibers from se...

  4. Heat pumping using the thermal earth gradient to produce air conditioned and hot water with savings of up to 70%; Bombeo de calor utilizando el gradiente termico de la tierra para producir aire acondicionado y agua caliente con ahorros de hasta un 70%

    Energy Technology Data Exchange (ETDEWEB)

    Alvarez Ramirez, Alejandro [Novaenergia de Mexico S.A. de C.V. (Mexico)

    2003-07-01

    The pumping of heat using the Earth heat as partial energy source bases its principle on which the energy of the ground is constant and the energy efficiency to produce air conditioning and hot water simultaneously is important, obtaining savings up to 70%, comparing itself with the traditional equipment and what these operate of separated way to produce each one of them the cold air and the hot water. The use of this technology presents an opportunity to reduce the energy costs of and the demand of the company. [Spanish] El bombeo de calor utilizando el calor de la tierra como fuente parcial de energia basa su principio en que la energia del suelo es constante y el rendimiento energetico para producir simultaneamente aire acondicionado y agua caliente es importante, obteniendose ahorros hasta de un 70%, comparandose con los equipos tradicionales y que estos operan de manera separada para producir cada uno de ellos el aire frio y el agua caliente. El uso de esta tecnologia presenta una oportunidad para reducir los costos de energia y demanda de la empresa.

  5. Timing of access to secondary healthcare services for diabetes management and lower extremity amputation in people with diabetes: a protocol of a case-control study.

    LENUS (Irish Health Repository)

    Buckley, Claire M

    2013-09-03

    Lower extremity amputation (LEA) is a complication of diabetes and a marker of the quality of diabetes care. Clinical and sociodemographic determinants of LEA in people with diabetes are well known. However, the role of service-related factors has been less well explored. Early referral to secondary healthcare is assumed to prevent the occurrence of LEA. The objective of this study is to investigate a possible association between the timing of patient access to secondary healthcare services for diabetes management, as a key marker of service-related factors, and LEA in patients with diabetes.

  6. Un nuevo modelo fenomenológico y diferencial para predecir la respuesta mecánica de materiales metálicos policristalinos sometidos a deformación en caliente

    Directory of Open Access Journals (Sweden)

    Castellanos, J.

    2012-10-01

    Full Text Available This paper presents a new phenomenological and differential model (that use differential equations to predict the flow stress of a metallic polycrystalline material under hot working. The model, called MCC, depends on six parameters and uses two internal variables to consider the strain hardening, dynamic recovery and dynamic recrystallization processes that occur under hot working. The experimental validation of the MCC model has been carried out by means of stress-strain curves from torsion tests at high temperature (900 ºC a 1200 ºC and moderate high strain rate (0.005 s-1 to 5 s-1 in a high nitrogen steel. The results reveal the very good agreement between experimental and predicted stresses. Furthermore, the Garofalo a-parameter and the strain to reach 50 % of recrystallized volume fraction have been employed as a control check being a first step to the physical interpretation of variables and parameters of the MCC model.

    Este trabajo presenta un nuevo modelo fenomenológico y diferencial (que emplea ecuaciones diferenciales para predecir la respuesta mecánica de un material metálico policristalino sometido a deformación en caliente. El modelo, llamado MCC, depende de seis parámetros y utiliza dos variables internas para considerar los procesos de endurecimiento por deformación, restauración y recristalización dinámicas. La validación experimental del modelo MCC se ha realizado empleando curvas tensión-deformación procedentes de ensayos de torsión a alta temperatura (900 ºC a 1.200 ºC y moderadamente alta velocidad de deformación (0,005 s-1 a 5 s-1 sobre un acero de alto contenido en nitrógeno. Los resultados obtenidos revelan la concordancia significativa entre las tensiones experimentales y predichas. Además el parámetro a de Garofalo y la deformación para el 50 % de volumen recristalizado se han utilizado como elementos de control para realizar un primer paso en la

  7. Evaluación del grado de adecuación del proceso de forja en caliente para la fabricación de piezas estampadas: criterios de viabilidad y optimización

    Directory of Open Access Journals (Sweden)

    Arenas Reina, José Manuel

    2000-10-01

    Full Text Available The design of industrial parts is a clear example of integrative effort that, with a focus of several disciplines, requires a detailed analysis of the different scientific and technological knowledge implied in its conception and development. Inside this performance context, the present work approaches the problem of the project of hot forging parts, proposing the use of criteria of viability and optimization that, based in technical and economical considerations, allow to value the adjusting degree of various alternative to the forge process, facilitating with it the selection of the most appropriate. Fixed these bases and with object of shortening times of answer and analysis in an application corresponding to parts with revolution symmetry, a computerized system has been introduced that, taking as started data the design of the part, geometrically simulates the forge process, allowing to calculate the adaptation coefficients in those morphologing that are possible according to the criteria of viability criteria. This system also provides a graphic representation of machined part, the forged part and the finished stamp.

    El diseño de piezas industriales supone un claro ejemplo de esfuerzo integrador que, con un enfoque interdisciplinar, requiere un análisis detallado de los diferentes conocimientos científicos y tecnológicos implicados en su concepción y desarrollo. Dentro de este marco de actuación, el presente trabajo aborda la problemática del proyecto de piezas estampadas en caliente, proponiendo la utilización de criterios de viabilidad y optimización que, fundamentados en consideraciones técnico-económicas, permiten valorar el grado de adecuación de las diferentes alternativas al proceso de forja, facilitando con ello la selección de la más adecuada. Fijadas estas bases y con objeto de acortar tiempos de respuesta y análisis en una aplicación correspondiente a piezas axisimétricas, se ha introducido un sistema

  8. World Wide Access: Accessible Web Design.

    Science.gov (United States)

    Washington Univ., Seattle.

    This brief paper considers the application of "universal design" principles to Web page design in order to increase accessibility for people with disabilities. Suggestions are based on the World Wide Web Consortium's accessibility initiative, which has proposed guidelines for all Web authors and federal government standards. Seven guidelines for…

  9. Access Nets: Modeling Access to Physical Spaces

    Science.gov (United States)

    Frohardt, Robert; Chang, Bor-Yuh Evan; Sankaranarayanan, Sriram

    Electronic, software-managed mechanisms using, for example, radio-frequency identification (RFID) cards, enable great flexibility in specifying access control policies to physical spaces. For example, access rights may vary based on time of day or could differ in normal versus emergency situations. With such fine-grained control, understanding and reasoning about what a policy permits becomes surprisingly difficult requiring knowledge of permission levels, spatial layout, and time. In this paper, we present a formal modeling framework, called AccessNets, suitable for describing a combination of access permissions, physical spaces, and temporal constraints. Furthermore, we provide evidence that model checking techniques are effective in reasoning about physical access control policies. We describe our results from a tool that uses reachability analysis to validate security policies.

  10. “Where to find those doctors?” A qualitative study on barriers and facilitators in access to and utilization of health care services by Polish migrants in Norway

    OpenAIRE

    Czapka, Elżbieta Anna; Sagbakken, Mette

    2016-01-01

    Background Poles constitute the largest group of migrants in Norway. Research confirms a steady inflow and a minimal outflow of Polish migrants. One of the key aspects of migrants’ structural integration is access to health care services. This study explored barriers to and facilitators of Polish migrants’ access to Norwegian health care services. Methods A qualitative interview-based study was carried out between November 2013 and July 2014. The study is part of a larger, ongoing mixed-metho...

  11. Pressure and judgement within a dichotomous landscape of infant feeding: a grounded theory study to explore why breastfeeding women do not access peer support provision.

    Science.gov (United States)

    Hunt, Louise; Thomson, Gill

    2016-04-01

    Lack of support is reported as a key reason for early breastfeeding cessation. While breastfeeding peer support (BPS) is a recommended intervention to increase breastfeeding rates, a number of studies identify that engagement with BPS is problematic. Due to paucity of research in this area, this study explores why breastfeeding women do not access BPS in South-West England. Utilising a constructionist grounded theory approach, 33 participants (women (n = 13), health professionals (n = 6) and peer supporters (n = 14)) participated in a semi-structured interview (n = 22) or focus group (n = 11). Analysis involved open coding, constant comparisons and focussed coding. One core category and three main themes explicating non-access were identified. The core category concerns women's experiences of pressure and judgement around their feeding decisions within a dichotomous landscape of infant feeding language and support. Theme one, 'place and space of support', describes the contrast between perceived pressure to breastfeed and a lack of adequate and appropriate support. Theme two, 'one way or no way', outlines the rules-based approach to breastfeeding adopted by some health professionals and how women avoided BPS due to anticipating a similar approach. Theme three, 'it must be me', concerns how lack of embodied insights could lead to 'breastfeeding failure' identities. A background of dichotomised language, pressure and moral judgement, combined with the organisation of post-natal care and the model of breastfeeding adopted by health professionals, may inhibit women's access to BPS. A socio-cultural model of breastfeeding support providing clear messages regarding the value and purpose of BPS should be adopted.

  12. Differences and determinants in access to essential public health services in China: a case study with hypertension people and under-sixes as target population

    Institute of Scientific and Technical Information of China (English)

    Niu Hongli; Tian Miaomiao; Ma Anning; Wang Chunping; Zhang Liang

    2014-01-01

    Background Since 2009,health reform had launched in China and essential public health services were provided for all residents to ensure service equity and accessibility,and to achieve sustained population-wide health improvement.This study aimed to investigate the differences and determinants among populations with different characteristics access to essential public health services in China,especially hypertension people and children aged 0-6 years.Methods A cross-sectional study with socio-demographic data analysis was undertaken to estimate distribution characteristics of receiving essential public health services of hypertension patients and children.Regular follow-ups and effective blood pressure control reflected the effective management for hypertension patients,and for children,public services provided were vaccination on schedule and regular physical check-up.Logistic regression was used to determine the predictors for effective management.Results A total of 1 505 hypertension patients and 749 children were involved; 39.14% of hypertension participants could control their blood pressure in the normal range,and the rate in urban areas (43.61%) was higher than that in rural (31.88%).And 34.68% of them could receive more than 4 times follow-ups by the medical technician.Of 754 children,79.84% could receive the periodic physical examination and 98.40% had vaccinated regularly.Children living in rural areas were more likely to have regular check-ups (83.96%) and regular vaccination (nearly 99%).Overall,geographic location and education level were the determinants of people access to essential public health services.Conclusions Implementation of the health reform since 2009 has headed China's public health system in the right direction and promoted the improvement of public health system development.Our study highlights the growing needs for more public health services in China,and China's public health system needs to be greatly improved in

  13. Simulation with TRACE5 of a small break of 1% in the hot branch; Simulacion con TRACE5 de una Rotura Pequena del 1% en la Rama Caliente

    Energy Technology Data Exchange (ETDEWEB)

    Querol, A.; Gallardo, S.; Verdu, G.

    2013-07-01

    This work has been simulated, Thermo-hydraulic-coded TRACE5, the 1-2 Test of the OECD/NEA ROSA project that reproduces a break of 1% in the hot field of a water pressurized (PWR) reactor. The results are compared with the experimental values for studying the effect of the stratification of the liquid into hot branch, the geometry and the size of the break and flow injected by the HPI system.

  14. Professional Access 2013 programming

    CERN Document Server

    Hennig, Teresa; Hepworth, George; Yudovich, Dagi (Doug)

    2013-01-01

    Authoritative and comprehensive coverage for building Access 2013 Solutions Access, the most popular database system in the world, just opened a new frontier in the Cloud. Access 2013 provides significant new features for building robust line-of-business solutions for web, client and integrated environments.  This book was written by a team of Microsoft Access MVPs, with consulting and editing by Access experts, MVPs and members of the Microsoft Access team. It gives you the information and examples to expand your areas of expertise and immediately start to develop and upgrade projects. Exp

  15. Accessing vs Sourcing Knowledge

    DEFF Research Database (Denmark)

    Awate, Snehal; Larsen, Marcus M.; Mudambi, Ram

    2015-01-01

    Research and development (R&D) internationalization is on the rise for advanced economy multinationals (AMNEs) as well as emerging economy multinationals (EMNEs). We study EMNE R&D internationalization by comparing it to that by AMNEs in the context of an emerging, knowledge-intensive industry. We...... to get on par with industry leaders. An in-depth comparison of knowledge flows reveals that within AMNEs, headquarters often serves the primary source of knowledge for R&D subsidiaries. In contrast, within EMNEs, headquarters accesses knowledge from R&D subsidiaries in advanced economies for innovation...

  16. Mixed Methods for Study of Gender Issues in Access, Application, and Attitudes Toward ICT in Higher Education Institutions in Papua New Guinea

    Directory of Open Access Journals (Sweden)

    Iwona Kolodziejczyk

    2015-04-01

    Full Text Available For more than a century, there has been an ongoing paradigm debate between qualitative and quantitative methodological communities that has led to a growing interest in the mixed methods approach. This article seeks to contribute to this ongoing discussion by presenting results of a mixed methods study employed to explore gender issues in the access, application, and attitudes toward information communication technology (ICT in higher education institutions in Papua New Guinea (PNG. The data presented here involved more than 900 students and faculty members. In each of the studied aspects of staffs’ and students’ interactions with ICT, mixed methods methodology provided a platform for deeper exploration of gender issues that otherwise would not have been discovered. Although quantitative data showed little statistically significant differences in the access to and application of ICT, qualitative data revealed deep inequalities rooted in a PNG male-dominated culture. In terms of participants’ attitudes toward ICT, qualitative analyses not only reaffirmed the statistical results but also enriched understanding of demonstrated attitudes by providing a platform for an in-depth discussion about the positive, negative, and ambivalent perceptions and beliefs held by the staff and students in tertiary institutions.

  17. What stops children with a chronic illness accessing health care: a mixed methods study in children with Chronic Fatigue Syndrome/Myalgic Encephalomyelitis (CFS/ME

    Directory of Open Access Journals (Sweden)

    Webb Carly M

    2011-11-01

    Full Text Available Abstract Background Paediatric Chronic Fatigue Syndrome/Myalgic Encephalomyelitis (CFS/ME is relatively common and disabling with a mean time out of school of more than one academic year. NICE guidelines recommend referral to specialist services immediately if severely affected, within 3 months if moderately affected and within 6 months if mildly affected. However, the median time-to-assessment by a specialist service in the UK is 18 months. This study used a mixed-methods approach to examine factors associated with time taken to access specialist services. Methods Time-to-assessment was analysed as a continuous "survival-time" variable in Cox regression models using data from self-completed assessment forms for children attending a regional specialist CFS/ME service between January 2006 and December 2009. Semi-structured interviews about barriers experienced in accessing healthcare for their child were conducted with nine parents of children aged Results 405 children were assessed between 2006 and 2009 and information on school attendance was available on 388. Only 1/125 with severe CFS/ME and 49/263 (19% with mild to moderate CFS/ME were seen within NICE recommended timeframe. Increased fatigue was associated with shorter time to assessment (HR = 1.15; 95% CI 1.03, 1.29 per unit increase in Chalder fatigue score; P = 0.01. Time-to-assessment was not associated with disability, mood, age or gender. Parents described difficulties accessing specialist services because of their own as well as their GP's and Paediatrician's lack of knowledge. They experienced negative attitudes and beliefs towards the child's condition when they consulted GPs, Paediatricians and Child Psychiatrists. Parents struggled to communicate an invisible illness that their child and not themselves were experiencing. Conclusions GPs, Child Psychiatrists and Paediatricians need more knowledge about CFS/ME and the appropriate referral pathways to ensure timeliness in referral

  18. What do parents perceive are the barriers and facilitators to accessing psychological treatment for mental health problems in children and adolescents? A systematic review of qualitative and quantitative studies.

    Science.gov (United States)

    Reardon, Tessa; Harvey, Kate; Baranowska, Magdalena; O'Brien, Doireann; Smith, Lydia; Creswell, Cathy

    2017-01-04

    A minority of children and adolescents with mental health problems access treatment. The reasons for poor rates of treatment access are not well understood. As parents are a key gatekeeper to treatment access, it is important to establish parents' views of barriers/facilitators to accessing treatment. The aims of this study are to synthesise findings from qualitative and quantitative studies that report parents' perceptions of barriers/facilitators to accessing treatment for mental health problems in children/adolescents. A systematic review and narrative synthesis were conducted. Forty-four studies were included in the review and were assessed in detail. Parental perceived barriers/facilitators relating to (1) systemic/structural issues; (2) views and attitudes towards services and treatment; (3) knowledge and understanding of mental health problems and the help-seeking process; and (4) family circumstances were identified. Findings highlight avenues for improving access to child mental health services, including increased provision that is free to service users and flexible to their needs, with opportunities to develop trusting, supportive relationships with professionals. Furthermore, interventions are required to improve parents' identification of mental health problems, reduce stigma for parents, and increase awareness of how to access services.

  19. Physical Access Control Database -

    Data.gov (United States)

    Department of Transportation — This data set contains the personnel access card data (photo, name, activation/expiration dates, card number, and access level) as well as data about turnstiles and...

  20. Design for Accessibility

    DEFF Research Database (Denmark)

    Herriott, Richard

    2012-01-01

    A report on how nine rail builder, operators and transport designers deal with design for accessibility......A report on how nine rail builder, operators and transport designers deal with design for accessibility...

  1. Characterization of dual-phase steels obtained by hot-rolling; Caracterizacion de aceros dual-phase obtenidos por laminacion en caliente

    Energy Technology Data Exchange (ETDEWEB)

    Monsalve, A.; Artigas, A.; Castro, F.; Colas, R.; Houbaert, Y.

    2011-07-01

    Samples were obtained from C-Mn-Si steel available in the market. Through a hot rolling and coiling process, it was possible to obtain Dual-Phase steel with microstructural and mechanical properties in the theoretical range typical of this material. The thermomechanical process consisted of a strong reduction by multiples pass of hot rolling at temperatures above Ar{sub 3}, controlled-cooling the sheets during 5 s (at a rate of 20 degree centigrade/s) in the equilibrium range {alpha}+{gamma} Temperature Ar{sub 3} measured by differential scanning calorimetry was 890 degree centigrade. Quenching was then carried out in the coiling temperatures range (500-675 degree centigrade), cooling the samples in accordance to an established curve that corresponds to the actual cooling curve of a coil. The microstructural characterization of the samples obtained was carried out by optical microscopy, scanning electron microscopy and atomic force microscopy. Additionally, texture measurements were carried out by X-ray diffraction in order to study the resulting orientations due to the finishing rolling temperature and coiling temperature, determining the influence on these parameters of the different texture components. The microstructural results were complemented with the normal and planar anisotropy indexes measured in according to the ASTM E-517 standard. The intensities of the different texture components were correlated with the values of anisotropy indexes, finding that it is possible to obtain only a slightly enhancement in the normal anisotropy index through an appropriate combination of finish rolling and coiling temperatures. (Author) 16 refs.

  2. Unidades habitacionais hoteleiras na Ilha de Santa Catarina: um estudo sobre acessibilidade espacial Habitational units in hotels of the Island of Santa Catarina: a study about Spatial accessibility

    Directory of Open Access Journals (Sweden)

    Vera Helena Moro Bins Ely

    2009-01-01

    Full Text Available Este artigo trata da avaliação das condições de acessibilidade espacial em unidades habitacionais (UHs, ditas acessíveis, de hotéis residenciais na ilha de Santa Catarina. Para tanto, visitas exploratórias permitiram o levantamento arquitetônico das UHs escolhidas e a análise de sua adequação aos parâmetros técnicos estabelecidos pela NBR 9050/2004. Entrevistas com diferentes usuários complementam o estudo na medida em que apontam as reais dificuldades enfrentadas por eles, devido às inadequadas soluções de acessibilidade presentes nos ambientes da rede hoteleira. Os métodos utilizados permitiram classificar os problemas de acessibilidade espacial segundo quatro componentes - orientação espacial, deslocamento, uso e comunicação - e relacioná-los às deficiências e habilidades dos diversos usuários. Encontrou-se maior prevalência de problemas ligados ao uso de mobiliários e equipamentos, os quais afetam a realização de atividades com conforto e independência. Verifica-se, também, que a NBR 9050/2004 ainda direciona seus parâmetros técnicos para atender principalmente deficientes físico-motores.This paper deals with the evaluation of the conditions of spatial accessibility in habitation units (UHs considered accessible in residential hotels on the Island of Santa Catarina. For this purpose, exploratory visits allowed an architectonic survey of the chosen UHs and an analysis of their adjustment to the technical parameters established by NBR 9050/2004. Interviews with different users completed the study which highlighted the real difficulties faced by them due to inadequate solutions of accessibility present in the hotel network environments. The methods facilitated a classification of the problems of spatial accessibility according to four components - spatial orientation, displacement, use and communication - and related them to the abilities and disabilities of the various users. A higher prevalence of problems

  3. Student's Plagiarisms in Higher Learning Institutions in the Era of Improved Internet Access: Case Study of Developing Countries

    Science.gov (United States)

    Anney, Vicent Naano; Mosha, Mary Atanas

    2015-01-01

    This study investigated students' plagiarism practices in Tanzania higher learning institutions by involving two universities-one public and one private university as a case study. The universities involved have honour code and policies for plagiarism detection however they do not employ software for checking students' plagiarism. The study…

  4. Strategic Planning for a Data-Driven, Shared-Access Research Enterprise: Virginia Tech Research Data Assessment and Landscape Study

    Science.gov (United States)

    Shen, Yi

    2016-01-01

    The data landscape study at Virginia Tech addresses the changing modes of faculty scholarship and supports the development of a user-centric data infrastructure, management, and curation system. The study investigates faculty researchers' current practices in organizing, describing, and preserving data and the emerging needs for services and…

  5. Out-of-pocket costs and other determinants of access to healthcare for children with febrile illnesses: a case-control study in rural Tanzania.

    Directory of Open Access Journals (Sweden)

    Joëlle Castellani

    Full Text Available To study private costs and other determinants of access to healthcare for childhood fevers in rural Tanzania.A case-control study was conducted in Tanzania to establish factors that determine access to a health facility in acute febrile illnesses in children less than 5 years of age. Carers of eligible children were interviewed in the community; cases were represented by patients who went to a facility and controls by those who did not. A Household Wealth Index was estimated using principal components analysis. A multivariable logistic regression analysis was performed to understand the factors which influenced attendance of healthcare facility including severity of the illness and household wealth/socio-demographic indicators. To complement the data on costs from community interviews, a hospital-based study obtained details of private expenditures for hospitalised children under the age of 5.Severe febrile illness is strongly associated with health facility attendance (OR: 35.76, 95%CI: 3.68-347.43, p = 0.002 compared with less severe febrile illness. Overall, the private costs of an illness for patients who went to a hospital were six times larger than private costs of controls ($5.68 vs. $0.90, p<0.0001. Household wealth was not significantly correlated with total costs incurred. The separate hospital based cost study indicated that private costs were three times greater for admissions at the mission versus public hospital: $13.68 mission vs. $4.47 public hospital (difference $ 9.21 (95% CI: 7.89 -10.52, p<0.0001. In both locations, approximately 50% of the cost was determined by the duration of admission, with each day in hospital increasing private costs by about 12% (95% CI: 5% - 21%.The more severely ill a child, the higher the probability of attending hospital. We did not find association between household wealth and attending a health facility; nor was there an association between household wealth and private cost.

  6. Pro Access 2010 Development

    CERN Document Server

    Collins, Mark

    2011-01-01

    Pro Access 2010 Development is a fundamental resource for developing business applications that take advantage of the features of Access 2010 and the many sources of data available to your business. In this book, you'll learn how to build database applications, create Web-based databases, develop macros and Visual Basic for Applications (VBA) tools for Access applications, integrate Access with SharePoint and other business systems, and much more. Using a practical, hands-on approach, this book will take you through all the facets of developing Access-based solutions, such as data modeling, co

  7. Android Access Control Extension

    Directory of Open Access Journals (Sweden)

    Anton Baláž

    2015-12-01

    Full Text Available The main objective of this work is to analyze and extend security model of mobile devices running on Android OS. Provided security extension is a Linux kernel security module that allows the system administrator to restrict program's capabilities with per-program profiles. Profiles can allow capabilities like network access, raw socket access, and the permission to read, write, or execute files on matching paths. Module supplements the traditional Android capability access control model by providing mandatory access control (MAC based on path. This extension increases security of access to system objects in a device and allows creating security sandboxes per application.

  8. Access 2013 for dummies

    CERN Document Server

    Ulrich Fuller, Laurie

    2013-01-01

    The easy guide to Microsoft Access returns with updates on the latest version! Microsoft Access allows you to store, organize, view, analyze, and share data; the new Access 2013 release enables you to build even more powerful, custom database solutions that integrate with the web and enterprise data sources. Access 2013 For Dummies covers all the new features of the latest version of Accessand serves as an ideal reference, combining the latest Access features with the basics of building usable databases. You'll learn how to create an app from the Welcome screen, get support

  9. Current/temperature measurements near the Sigsbee Escarpment from the MMS Desoto Canyon Intrusion Study, 19990829 - 20010906 (NODC Accession 0002569)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — During this study in-situ measurement of currents,temperature, conductivity were made on a series of tautline moorings near the base of and on the Sigsbee...

  10. Urban Railway Accessibility

    Institute of Scientific and Technical Information of China (English)

    GUAN Hongzhi; YIN Yuanfei; YAN Hai; HAN Yan; QIN Huanmei

    2007-01-01

    Effective use of urban rapid railway systems requires that the railway systems be effectively connected with other transportation modes so that they are accessible. This paper uses the logit model and data to analyze the factors influencing railway access choices in a railway choice access model. The results indicate that access time, access cost, and access distance are factors significantly affecting railway access choices. The user's income significantly affects the probability of choosing to walk rather than to take a taxi,but is not related to choosing buses or bicycles. Vehicle ownership significantly affects the probability of choosing a taxi, but is not significantly related to the other modes. The conclusions provide an analysis tool for urban railway planning and construction.

  11. Open Access @ DTU

    DEFF Research Database (Denmark)

    Ekstrøm, Jeannette

    Open Access is high on the agenda in Denmark and internationally. Denmark has announced a national strategy for Open Access that aims to achieve Open Access to 80% in 2017 and 100% in 2022 to peer review research articles. All public Danish funders as well as H2020 requires that all peer review...... articles that is an outcome of their funding will be Open Access. Uploading your full texts (your final author manuscript after review ) to DTU Orbit is a fundamental part of providing Open Access to your research. We are here to answer all your questions with regards to Open Access and related topics...... such as copyright, DTU Orbit, Open Access journals, APCs, Vouchers etc....

  12. Developing Access to Number Magnitude: A Study of the SNARC Effect in 7- to 9-Year-Olds

    Science.gov (United States)

    van Galen, Mirte S.; Reitsma, Pieter

    2008-01-01

    The SNARC (spatial-numerical association of response codes) effect refers to the finding that small numbers facilitate left responses, whereas larger numbers facilitate right responses. The development of this spatial association was studied in 7-, 8-, and 9-year-olds, as well as in adults, using a task where number magnitude was essential to…

  13. Access of children with cerebral palsy to the physical, social and attitudinal environment they need: a cross-sectional European study

    DEFF Research Database (Denmark)

    Colver, Allan F; Dickinson, Heather O; Parkinson, Kathryn;

    2011-01-01

    sources. Researchers visited these 818 children and administered the European Child Environment Questionnaire, which records parents' perceptions of availability of the physical, social and attitudinal environment needed in home, school and community. Multilevel, multivariable regression related child...... on most or all domains. Conclusion. European states need to substantially improve environmental access for disabled children in order to meet their obligations under UN Conventions. In some regions, many environmental factors should and realistically could be changed. Legislation and regulation should...... for disabled children in Europe. Method. One thousand one-hundred and seventy-four children aged 8-12 years were randomly selected from population-based registers of children with cerebral palsy in eight European regions. 743 children joined the study; one further region recruited 75 children from multiple...

  14. Professional Perceptions and Reasons for Access to Journalism Studies. The Case of Journalism Students at Complutense University of Madrid

    Directory of Open Access Journals (Sweden)

    Miriam RODRÍGUEZ PALLARES

    2015-12-01

    Full Text Available In the academic year 2013-2014, the MediaCom UCM research group conducted a study among students in the first and fourth year of the Degree in Journalism at UCM with the pretention to know the reasons that they decided to pursue these studies, their perceptions of journalism and media influence. From a quantitative analysis model relatively vocational criteria among students are perceived; generally they believe that journalists are not very independent and that political and economic factors influence in the activity of the media sector, whose influence on policy choices and consumption is subject to debate. This article is part of an academic project, whose results are intended to work with universities to improve their teaching and training model of students according to their perception of journalism as a profession.

  15. Internet Access, Use and Gratification among University Students: A Case Study of the Islamia University of Bahawalpur, Pakistan

    Directory of Open Access Journals (Sweden)

    Shakeel Ahmad Khan

    2011-12-01

    Full Text Available This study aims to investigate the attitude s of students at the Islamia University of Bahawalpur, Pakistan towards learning through the Internet. A structured questionnaire was used for data collection. It was found that a vast majority of the students learnt how to use the Internet by themselves or with the assistance of their friends. The findings showed that their attitude towards the Internet was very positive and they used it mainly for study purpose. They used online databases, dictionaries, encyclopedias and online courses. Google was the most popular search engine for retrieving information on the Internet. However, the use of free database services provide d by the Higher Education Commission (HEC of Pakistan was not satisfactory. The respondents were also dissatisfied with the Internet service provision, slow speed of the Internet connection and inadequate number of computers in computer labs.

  16. A Case Study on E - Banking Security – When Security Becomes Too Sophisticated for the User to Access Their Information

    Directory of Open Access Journals (Sweden)

    Aaron M. French

    2012-08-01

    Full Text Available While eBanking security continues to increase in sophistication to protect against threats, the usability of the eBanking decreases resulting in poor security behaviors by the users. The current research evaluates se curity risks and measures taken for eBanking solutions. A case study is presented describing how increased complexity decreases vulnerabilities online but increases vulnerabilities from internal threats and eBanking users

  17. Meet Spinky: An Open-Source Spindle and K-Complex Detection Toolbox Validated on the Open-Access Montreal Archive of Sleep Studies (MASS)

    Science.gov (United States)

    Lajnef, Tarek; O’Reilly, Christian; Combrisson, Etienne; Chaibi, Sahbi; Eichenlaub, Jean-Baptiste; Ruby, Perrine M.; Aguera, Pierre-Emmanuel; Samet, Mounir; Kachouri, Abdennaceur; Frenette, Sonia; Carrier, Julie; Jerbi, Karim

    2017-01-01

    Sleep spindles and K-complexes are among the most prominent micro-events observed in electroencephalographic (EEG) recordings during sleep. These EEG microstructures are thought to be hallmarks of sleep-related cognitive processes. Although tedious and time-consuming, their identification and quantification is important for sleep studies in both healthy subjects and patients with sleep disorders. Therefore, procedures for automatic detection of spindles and K-complexes could provide valuable assistance to researchers and clinicians in the field. Recently, we proposed a framework for joint spindle and K-complex detection (Lajnef et al., 2015a) based on a Tunable Q-factor Wavelet Transform (TQWT; Selesnick, 2011a) and morphological component analysis (MCA). Using a wide range of performance metrics, the present article provides critical validation and benchmarking of the proposed approach by applying it to open-access EEG data from the Montreal Archive of Sleep Studies (MASS; O’Reilly et al., 2014). Importantly, the obtained scores were compared to alternative methods that were previously tested on the same database. With respect to spindle detection, our method achieved higher performance than most of the alternative methods. This was corroborated with statistic tests that took into account both sensitivity and precision (i.e., Matthew’s coefficient of correlation (MCC), F1, Cohen κ). Our proposed method has been made available to the community via an open-source tool named Spinky (for spindle and K-complex detection). Thanks to a GUI implementation and access to Matlab and Python resources, Spinky is expected to contribute to an open-science approach that will enhance replicability and reliable comparisons of classifier performances for the detection of sleep EEG microstructure in both healthy and patient populations. PMID:28303099

  18. Meet Spinky: An Open-Source Spindle and K-Complex Detection Toolbox Validated on the Open-Access Montreal Archive of Sleep Studies (MASS).

    Science.gov (United States)

    Lajnef, Tarek; O'Reilly, Christian; Combrisson, Etienne; Chaibi, Sahbi; Eichenlaub, Jean-Baptiste; Ruby, Perrine M; Aguera, Pierre-Emmanuel; Samet, Mounir; Kachouri, Abdennaceur; Frenette, Sonia; Carrier, Julie; Jerbi, Karim

    2017-01-01

    Sleep spindles and K-complexes are among the most prominent micro-events observed in electroencephalographic (EEG) recordings during sleep. These EEG microstructures are thought to be hallmarks of sleep-related cognitive processes. Although tedious and time-consuming, their identification and quantification is important for sleep studies in both healthy subjects and patients with sleep disorders. Therefore, procedures for automatic detection of spindles and K-complexes could provide valuable assistance to researchers and clinicians in the field. Recently, we proposed a framework for joint spindle and K-complex detection (Lajnef et al., 2015a) based on a Tunable Q-factor Wavelet Transform (TQWT; Selesnick, 2011a) and morphological component analysis (MCA). Using a wide range of performance metrics, the present article provides critical validation and benchmarking of the proposed approach by applying it to open-access EEG data from the Montreal Archive of Sleep Studies (MASS; O'Reilly et al., 2014). Importantly, the obtained scores were compared to alternative methods that were previously tested on the same database. With respect to spindle detection, our method achieved higher performance than most of the alternative methods. This was corroborated with statistic tests that took into account both sensitivity and precision (i.e., Matthew's coefficient of correlation (MCC), F1, Cohen κ). Our proposed method has been made available to the community via an open-source tool named Spinky (for spindle and K-complex detection). Thanks to a GUI implementation and access to Matlab and Python resources, Spinky is expected to contribute to an open-science approach that will enhance replicability and reliable comparisons of classifier performances for the detection of sleep EEG microstructure in both healthy and patient populations.

  19. Awareness of Turkish society about accessible tourism

    OpenAIRE

    2016-01-01

    Turkey is among the countries which cannot have a share of accessible tourism although it is challenging and has a big market in tourism. People with disabilities represent a significant market share and Turkey can have a share of this market to increase its tourism revenues. Aim of this study is to present the awareness level of Turkish society about accessible tourism. This study concluded that Turkish society has an awareness of accessible tourism, but tourism establishme...

  20. An Access Control Framework for Reflective Middleware

    Institute of Scientific and Technical Information of China (English)

    Gang Huang; Lian-Shan Sun

    2008-01-01

    Reflective middleware opens up the implementation details of middleware platform and applications at runtime for improving the adaptability of middleware-based systems. However, such openness brings new challenges to access control of the middleware-based systems.Some users can access the system via reflective entities, which sometimes cannot be protected by access control mechanisms of traditional middleware. To deliver high adaptability securely, reflective middleware should be equipped with proper access control mechanisms for potential access control holes induced by reflection. One reason of integrating these mechanisms in reflective middleware is that one goal of reflective middleware is to equip applications with reflection capabilities as transparent as possible. This paper studies how to design a reflective J2EE middlewarePKUAS with access control in mind. At first, a computation model of reflective system is built to identify all possible access control points induced by reflection. Then a set of access control mechanisms, including the wrapper of MBeans and a hierarchy of Java class loaders, are equipped for controlling the identified access control points. These mechanisms together with J2EE access control mechanism form the access control framework for PKUAS. The paper evaluates the security and the performance overheads of the framework in quality and quantity.

  1. Evaluation of an open access echocardiography service in the Netherlands: a mixed methods study of indications, outcomes, patient management and trends

    Directory of Open Access Journals (Sweden)

    Streppel Marjolijn

    2010-02-01

    Full Text Available Abstract Background In our region (Eastern South Limburg, The Netherlands an open access echocardiography service started in 2002. It was the first service of this kind in The Netherlands. Our study aims were: (1 to evaluate demand for the service, participation, indications, echocardiography outcomes, and management by the general practitioner (GP; (2 to analyse changes in indications and outcomes over the years. Methods (1 Data from GP request forms, echocardiography reports and a retrospective GP questionnaire on management (response rate 83% of 625 consecutive patients (Dec. 2002 - March 2007 were analysed cross-sectionally. (2 For the analysis of changes over the years, data from GP request forms and echocardiography reports of the first and last 250 patients that visited the service between Dec. 2002 and Feb. 2008 (n = 1001 were compared. Results The echocardiography service was used by 81% of the regional GPs. On average, a GP referred one patient per year to the service. Intended indications for the service were dyspnoea (32%, cardiac murmur (59%, and peripheral oedema (17%. Of the other indications (22%, one-third was for evaluation of suspected left ventricular hypertrophy (LVH. Expected outcomes were left ventricular dysfunction (LVD (43%, predominantly diastolic and valve disease (25%. We also found a high proportion of LVH (50%. Only 24% of all echocardiograms showed no relevant disease. The GP followed the cardiologist's advice to refer the patient for further evaluation in 71%. In recent patients, more echocardiography requests were done for 'cardiac murmur' and 'other' indications, but less for 'dyspnoea'. The proportions of patients with LVD, LVH and valve disease decreased and the proportion of patients with no relevant disease increased. The number of advices by the cardiologists increased. Conclusion Overall, GPs used the open access echocardiography service efficiently (i.e. with a high chance of finding relevant pathology

  2. Beverage consumption in an Alaska Native village: a mixed-methods study of behaviour, attitudes and access

    Directory of Open Access Journals (Sweden)

    Deena Elwan

    2016-02-01

    Full Text Available Background: American Indians/Alaska Natives (AI/AN have the highest prevalence of obesity for any racial/ethnic group. Previous studies examining risk factors for obesity have identified excessive sugar-sweetened beverage (SSB and inadequate water consumption as major risk factors for this population group. The historical scarcity of water in rural Alaska may explain consumption patterns including reliance on SSBs and other packaged drinks. Methods: Our study was designed to assess SSB, water and other beverage consumption and attitudes towards consumption in Alaska Native children and adults residing in rural Alaska. During summer 2014, 2 focus groups were conducted employing community members in a small rural village more than 200 air miles west of Fairbanks, Alaska. Interviews were completed with shop owners, Early Head Start and Head Start program instructors (n=7. SSB and total beverage intakes were measured using a modified version of the BEVQ-15, (n=69. Results: High rates of SSB consumption (defined as sweetened juice beverages, soda, sweet tea, energy drink or sports drinks and low rates of water consumption were reported for all age groups in the village. All adolescents and 81% of children reported drinking SSBs at least once per week in the last month, and 48% of adolescents and 29% of younger children reported daily consumption. Fifty-two per cent of adults reported consuming SSBs at least once per week and 20% reported daily consumption. Twenty-five per cent of adolescents reported never drinking water in the past month, and 19% of younger children and 21% of adults did not consume water daily. Conclusion: Alaska Native children and adults living in the Interior Alaska consume high amounts of SSBs including energy drinks and insufficient amounts of water. Interventions targeting beverage consumption are urgently needed for the Alaska Native population in rural Alaska.

  3. Improving the accessibility and re-use of environmental models through provision of model metadata - a scoping study

    Science.gov (United States)

    Riddick, Andrew; Hughes, Andrew; Harpham, Quillon; Royse, Katherine; Singh, Anubha

    2014-05-01

    There has been an increasing interest both from academic and commercial organisations over recent years in developing hydrologic and other environmental models in response to some of the major challenges facing the environment, for example environmental change and its effects and ensuring water resource security. This has resulted in a significant investment in modelling by many organisations both in terms of financial resources and intellectual capital. To capitalise on the effort on producing models, then it is necessary for the models to be both discoverable and appropriately described. If this is not undertaken then the effort in producing the models will be wasted. However, whilst there are some recognised metadata standards relating to datasets these may not completely address the needs of modellers regarding input data for example. Also there appears to be a lack of metadata schemes configured to encourage the discovery and re-use of the models themselves. The lack of an established standard for model metadata is considered to be a factor inhibiting the more widespread use of environmental models particularly the use of linked model compositions which fuse together hydrologic models with models from other environmental disciplines. This poster presents the results of a Natural Environment Research Council (NERC) funded scoping study to understand the requirements of modellers and other end users for metadata about data and models. A user consultation exercise using an on-line questionnaire has been undertaken to capture the views of a wide spectrum of stakeholders on how they are currently managing metadata for modelling. This has provided a strong confirmation of our original supposition that there is a lack of systems and facilities to capture metadata about models. A number of specific gaps in current provision for data and model metadata were also identified, including a need for a standard means to record detailed information about the modelling

  4. Port Access Cardiac Surgery.

    Science.gov (United States)

    Viganó, Mario; Minzioni, Gaetano; Spreafico, Patrizio; Rinaldi, Mauro; Pasquino, Stefano; Ceriana, Piero; Locatelli, Alessandro

    2000-10-01

    The port-access technique for cardiac surgery was recently developed at Stanford University in California as a less invasive method to perform some cardiac operations. The port-access system has been described in detail elsewhere. It is based on femoral arterial and venous access for cardiopulmonary bypass (CPB) and on the adoption of a specially designed triple-lumen catheter described originally by Peters, and subsequently modified and developed in the definitive configuration called the endoaortic clamp.

  5. Access Data Analysis Cookbook

    CERN Document Server

    Bluttman, Ken

    2008-01-01

    This book offers practical recipes to solve a variety of common problems that users have with extracting Access data and performing calculations on it. Whether you use Access 2007 or an earlier version, this book will teach you new methods to query data, different ways to move data in and out of Access, how to calculate answers to financial and investment issues, how to jump beyond SQL by manipulating data with VBA, and more.

  6. Accessible e-learning

    OpenAIRE

    Bühler, Christian; Scheer, Birgit

    2005-01-01

    People with disabilities often encounter difficulties while trying to learn something, because teaching material is for example not accessible to blind people or rooms, where courses take place, are not accessible to people using a wheelchair. E-learning provides an opportunity to disabled people. With the new German law on the equalisation of opportunities for people with disabilities for the first time access to information technology was explicitly taken up in German legislation. As a cons...

  7. The effects of socioeconomic status, accessibility to services and patient type on hospital use in Western Australia: a retrospective cohort study of patients with homogenous health status

    Directory of Open Access Journals (Sweden)

    Holman C D'Arcy J

    2006-06-01

    Full Text Available Abstract Background This study aimed to investigate groups of patients with a relatively homogenous health status to evaluate the degree to which use of the Australian hospital system is affected by socio-economic status, locational accessibility to services and patient payment classification. Method Records of all deaths occurring in Western Australia from 1997 to 2000 inclusive were extracted from the WA mortality register and linked to records from the hospital morbidity data system (HMDS via the WA Data Linkage System. Adjusted incidence rate ratios of hospitalisation in the last, second and third years prior to death were modelled separately for five underlying causes of death. Results The independent effects of socioeconomic status on hospital utilisation differed markedly across cause of death. Locational accessibility was generally not an independent predictor of utilisation except in those dying from ischaemic heart disease and lung cancer. Private patient status did not globally affect utilisation across all causes of death, but was associated with significantly decreased utilisation three years prior to death for those who died of colorectal, lung or breast cancer, and increased utilisation in the last year of life in those who died of colorectal cancer or cerebrovascular disease. Conclusion It appears that the Australian hospital system may not be equitable since equal need did not equate to equal utilisation. Further it would appear that horizontal equity, as measured by equal utilisation for equal need, varies by disease. This implies that a 'one-size-fits-all' approach to further improvements in equity may be over simplistic. Thus initiatives beyond Medicare should be devised and evaluated in relation to specific areas of service provision.

  8. Artificial reefs and marine protected areas: a study in willingness to pay to access Folkestone Marine Reserve, Barbados, West Indies

    Science.gov (United States)

    Wheeler, Philip M.; Johnson, Magnus L.

    2016-01-01

    Artificial reefs in marine protected areas provide additional habitat for biodiversity viewing, and therefore may offer an innovative management solution for managing for coral reef recovery and resilience. Marine park user fees can generate revenue to help manage and maintain natural and artificial reefs. Using a stated preference survey, this study investigates the present consumer surplus associated with visitor use of a marine protected area in Barbados. Two hypothetical markets were presented to differentiate between respondents use values of either: (a) natural reefs within the marine reserve or (b) artificial reef habitat for recreational enhancement. Information was also collected on visitors’ perceptions of artificial reefs, reef material preferences and reef conservation awareness. From a sample of 250 visitors on snorkel trips, we estimate a mean willingness to pay of US$18.33 (median—US$15) for natural reef use and a mean value of US$17.58 (median—US$12.50) for artificial reef use. The number of marine species viewed, age of respondent, familiarity with the Folkestone Marine Reserve and level of environmental concern were statistically significant in influencing willingness to pay. Regression analyses indicate visitors are willing to pay a significant amount to view marine life, especially turtles. Our results suggest that user fees could provide a considerable source of income to aid reef conservation in Barbados. In addition, the substantial use value reported for artificial reefs indicates a reef substitution policy may be supported by visitors to the Folkestone Marine Reserve. We discuss our findings and highlight directions for future research that include the need to collect data to establish visitors’ non-use values to fund reef management. PMID:27547521

  9. Artificial reefs and marine protected areas: a study in willingness to pay to access Folkestone Marine Reserve, Barbados, West Indies.

    Science.gov (United States)

    Kirkbride-Smith, Anne E; Wheeler, Philip M; Johnson, Magnus L

    2016-01-01

    Artificial reefs in marine protected areas provide additional habitat for biodiversity viewing, and therefore may offer an innovative management solution for managing for coral reef recovery and resilience. Marine park user fees can generate revenue to help manage and maintain natural and artificial reefs. Using a stated preference survey, this study investigates the present consumer surplus associated with visitor use of a marine protected area in Barbados. Two hypothetical markets were presented to differentiate between respondents use values of either: (a) natural reefs within the marine reserve or (b) artificial reef habitat for recreational enhancement. Information was also collected on visitors' perceptions of artificial reefs, reef material preferences and reef conservation awareness. From a sample of 250 visitors on snorkel trips, we estimate a mean willingness to pay of US$18.33 (median-US$15) for natural reef use and a mean value of US$17.58 (median-US$12.50) for artificial reef use. The number of marine species viewed, age of respondent, familiarity with the Folkestone Marine Reserve and level of environmental concern were statistically significant in influencing willingness to pay. Regression analyses indicate visitors are willing to pay a significant amount to view marine life, especially turtles. Our results suggest that user fees could provide a considerable source of income to aid reef conservation in Barbados. In addition, the substantial use value reported for artificial reefs indicates a reef substitution policy may be supported by visitors to the Folkestone Marine Reserve. We discuss our findings and highlight directions for future research that include the need to collect data to establish visitors' non-use values to fund reef management.

  10. Accessibility of spoken, written, and sign language in Landau-Kleffner syndrome: a linguistic and functional MRI study.

    Science.gov (United States)

    Sieratzki, J S; Calvert, G A; Brammer, M; David, A; Woll, B

    2001-06-01

    Landau-Kleffner syndrome (LKS) is an acquired aphasia which begins in childhood and is thought to arise from an epileptic disorder within the auditory speech cortex. Although the epilepsy usually subsides at puberty, a severe communication impairment often persists. Here we report on a detailed study of a 26-year old, left-handed male, with onset of LKS at age 5 years, who is aphasic for English but who learned British Sign Language (BSL) at age 13. We have investigated his skills in different language modalities, recorded EEGs during wakefulness, sleep, and under conditions of auditory stimulation, measured brain stem auditory-evoked potentials (BAEP), and performed functional MRI (fMRI) during a range of linguistic tasks. Our investigation demonstrated severe restrictions in comprehension and production of spoken English as well as lip-reading, while reading was comparatively less impaired. BSL was by far the most efficient mode of communication. All EEG recordings were normal, while BAEP showed minor abnormalities. fMRI revealed: 1) powerful and extensive bilateral (R > L) activation of auditory cortices in response to heard speech, much stronger than when listening to music; 2) very little response to silent lip-reading; 3) strong activation in the temporo-parieto-occipital association cortex, exclusively in the right hemisphere (RH), when viewing BSL signs. Analysis of these findings provides novel insights into the disturbance of the auditory speech cortex which underlies LKS and its diagnostic evaluation by fMRI, and underpins a strategy of restoring communication abilities in LKS through a natural sign language of the deaf (with Video)

  11. Access 2013 bible

    CERN Document Server

    Alexander, Michael

    2013-01-01

    A comprehensive reference to the updated and new features of Access 2013 As the world's most popular database management tool, Access enables you to organize, present, analyze, and share data as well as build powerful database solutions. However, databases can be complex. That's why you need the expert guidance in this comprehensive reference. Access 2013 Bible helps you gain a solid understanding of database purpose, construction, and application so that whether you're new to Access or looking to upgrade to the 2013 version, this well-rounded resource provides you with a th

  12. Channel Access in Erlang

    Energy Technology Data Exchange (ETDEWEB)

    Nicklaus, Dennis J. [Fermilab

    2013-10-13

    We have developed an Erlang language implementation of the Channel Access protocol. Included are low-level functions for encoding and decoding Channel Access protocol network packets as well as higher level functions for monitoring or setting EPICS process variables. This provides access to EPICS process variables for the Fermilab Acnet control system via our Erlang-based front-end architecture without having to interface to C/C++ programs and libraries. Erlang is a functional programming language originally developed for real-time telecommunications applications. Its network programming features and list management functions make it particularly well-suited for the task of managing multiple Channel Access circuits and PV monitors.

  13. OGIS Access System

    Data.gov (United States)

    National Archives and Records Administration — The OGIS Access System (OAS) provides case management, stakeholder collaboration, and public communications activities including a web presence via a web portal.

  14. Web Accessibility and Guidelines

    Science.gov (United States)

    Harper, Simon; Yesilada, Yeliz

    Access to, and movement around, complex online environments, of which the World Wide Web (Web) is the most popular example, has long been considered an important and major issue in the Web design and usability field. The commonly used slang phrase ‘surfing the Web’ implies rapid and free access, pointing to its importance among designers and users alike. It has also been long established that this potentially complex and difficult access is further complicated, and becomes neither rapid nor free, if the user is disabled. There are millions of people who have disabilities that affect their use of the Web. Web accessibility aims to help these people to perceive, understand, navigate, and interact with, as well as contribute to, the Web, and thereby the society in general. This accessibility is, in part, facilitated by the Web Content Accessibility Guidelines (WCAG) currently moving from version one to two. These guidelines are intended to encourage designers to make sure their sites conform to specifications, and in that conformance enable the assistive technologies of disabled users to better interact with the page content. In this way, it was hoped that accessibility could be supported. While this is in part true, guidelines do not solve all problems and the new WCAG version two guidelines are surrounded by controversy and intrigue. This chapter aims to establish the published literature related to Web accessibility and Web accessibility guidelines, and discuss limitations of the current guidelines and future directions.

  15. Access Denied! Contrasting Data Access in the United States and Ireland

    Directory of Open Access Journals (Sweden)

    Grogan Samuel

    2016-07-01

    Full Text Available The ability of an Internet user to access data collected about himself as a result of his online activity is a key privacy safeguard. Online, data access has been overshadowed by other protections such as notice and choice. This paper describes attitudes about data access. 873 US and Irish Internet users participated in a survey designed to examine views on data access to information held by online companies and data brokers. We observed low levels of awareness of access mechanisms along with a high desire for access in both participant groups. We tested three proposed access systems in keeping with industry programs and regulatory proposals. User response was positive. We conclude that access remains an important privacy protection that is inadequately manifested in practice. Our study provides insight for lawmakers and policymakers, as well as computer scientists who implement these systems.

  16. ALGUNAS LECCIONES SOBRE EL ACCESO A RECURSOS GENÉTICOS EN COLOMBIA. DOS ESTUDIOS DE CASO. Some lessons about Access to Genetic Resources in Colombia. Two case studies

    Directory of Open Access Journals (Sweden)

    GABRIEL RICARDO NEMOGÁ SOTO

    information and interest of researchers and research institutions. With the purpose to extract lessons from the processes of access applications and to promote an appropriate answer from the environmental authorities, two case studies are examined. The data was taken from public files N.º 2571 and RGE0018, at the Ministry of Environment, House and Land Development (MAVDT. The application of the Biotechnology Institute of the National University of Colombia, has last for 7 years for the authorization of an ARG without success; unexpectedly the MAVDT has initiated a sanction process on grounds of illegal access. The application presented by the 'Temporary Union Colombian Center for Bioinformatic and Genomics on Extreme Environments -GeBix' the ARG was granted and signed after 406 days of proceeding. In the end, the application and negotiation of a contract for ARG, requires researcher’s knowledge regarding the ARG procedure and appropriate implementation of the access legislation by the MAVDT. Although the application process is less troublesome for the researcher at the moment, institutional and regulatory adjustments are still required in order to establish an ARG procedure that facilitates, instead of preventing, the scientific research.

  17. Publishing in Open Access Education Journals: The Authors' Perspectives

    Science.gov (United States)

    Coonin, Bryna; Younce, Leigh M.

    2010-01-01

    Open access publishing is now an accepted method of scholarly communication. However, the greatest traction for open access publishing thus far has been in the sciences. Penetration of open access publishing has been much slower among the social sciences. This study surveys 309 authors from recent issues of open access journals in education to…

  18. Scanning transmission X-ray microscopy probe for in situ mechanism study of graphene-oxide-based resistive random access memory.

    Science.gov (United States)

    Nho, Hyun Woo; Kim, Jong Yun; Wang, Jian; Shin, Hyun-Joon; Choi, Sung-Yool; Yoon, Tae Hyun

    2014-01-01

    Here, an in situ probe for scanning transmission X-ray microscopy (STXM) has been developed and applied to the study of the bipolar resistive switching (BRS) mechanism in an Al/graphene oxide (GO)/Al resistive random access memory (RRAM) device. To perform in situ STXM studies at the C K- and O K-edges, both the RRAM junctions and the I0 junction were fabricated on a single Si3N4 membrane to obtain local XANES spectra at these absorption edges with more delicate I0 normalization. Using this probe combined with the synchrotron-based STXM technique, it was possible to observe unique chemical changes involved in the BRS process of the Al/GO/Al RRAM device. Reversible oxidation and reduction of GO induced by the externally applied bias voltages were observed at the O K-edge XANES feature located at 538.2 eV, which strongly supported the oxygen ion drift model that was recently proposed from ex situ transmission electron microscope studies.

  19. Mapping City Accessibility: Review and Analysis.

    Science.gov (United States)

    Comai, Sara; Kayange, Daniel; Mangiarotti, Raffaella; Matteucci, Matteo; Ugur Yavuz, Secil; Valentini, Francesco

    2015-01-01

    The paper presents an analysis of prototypes, studies, and applications for the mapping of city accessibility, focusing mainly on sidewalks accessibility. Moreover, it presents the results of two focus groups that we organized both with electric and with manual wheelchairs to attain requirements and insights to design a user-friendly app for the collection and visualization of information about the accessibility of urban pedestrian pathways.

  20. Equal Access but Unequal Outcomes

    DEFF Research Database (Denmark)

    Jæger, Mads Meier

    2009-01-01

    with respect to Danish children's choice of secondary education. Denmark is well-suited for this study because access to secondary education is particularly meritocratic. The empirical analysis shows that all three channels through which cultural capital affects educational success are important....

  1. Time consumption and productivity of skidding Silver fir (Abies alba Mill. round wood in reduced accessibility conditions: a case study in windthrow salvage logging form Romanian Carpathians

    Directory of Open Access Journals (Sweden)

    Stelian Alexandru Borz

    2013-12-01

    Full Text Available Natural calamities (especially windthrows may generate difficult work conditions in timber harvesting operations. When associated with the reduced accessibility conditions, the work conditions become even harder. This study investigates the time consumptions on specific work elements in timber skidding, develops time prediction models for timber skidding work elements and assesses the production rates for timber skidding in reduced accessibility stands where windthrow salvage cuttings were applied. Following a time study done for two skidders (TAF 690 OP and TAF 657 operating simultaneously in the same felling area, it has been found that, in average, in a delay free skidding cycle time, lateral winching accounted for a share of 26-33%, on-trail skidding accounted for a share of 64-71% and landing operations accounted for a share of 3%.Total delays accounted for 51% and 43% of the total work time in the case of TAF 690 OP skidder and TAF 657skidder respectively. Regression models for lateral winching (both skidders revealed that the winching distance and the number of logs were the relevant predictors for the time consumption estimation (p<0.01, whereas in the case of on-trail skidding only the skidding distance was relevant (p<0.01. For the overall skidding operation (excluding landing operations winching and skidding distances were found as relevant predictors (p<0.01 in case of TAF 690 OP, whereas the number of logs became an additional relevant predictor in case of TAF 657.In conditions of an average winching distance of 19.90 m and an average on-trail skidding distance of 980.32 m, the time study yielded a net production rate of 7.70 m3h-1 and a gross production rate of 3.75 m3h-1 in the case of TAF 690 OP skidder. By comparison, in the case of TAF 657 skidder, for an average winching distance of 22.86 m and an average on-trail skidding distance of 871.00 m, the net and gross production rates were of 5.61 m3h-1 and 3.20 m3h-1 respectively.

  2. Towards Accessible Search Systems

    NARCIS (Netherlands)

    Serdyukov, Pavel; Hiemstra, Djoerd; Ruthven, Ian

    2010-01-01

    The SIGIR workshop Towards Accessible Search Systems was the first workshop in the field to raise the discussion on how to make search engines accessible for different types of users. We report on the results of the workshop that was held on 23 July 2010 in conjunction with the 33rd Annual ACM SIGIR

  3. MedlinePlus: Accessibility

    Science.gov (United States)

    ... Tools Español You Are Here: Home → MedlinePlus Accessibility URL of this page: https://medlineplus.gov/accessibility.html ... or (301) 594-5983 and provide the address (URL) of the page on which you need assistance, ...

  4. Intellectual Access to Images.

    Science.gov (United States)

    Chen, Hsin-Liang; Rasmussen, Edie M.

    1999-01-01

    The increased availability of digital images is accompanied by a need for solutions to the problems inherent in indexing them for retrieval. Problems in image description and access are discussed, with a perspective on traditional and new solutions. Recent developments in intellectual access to images are surveyed and contrasted with…

  5. ATLAS Data Access Policy

    CERN Document Server

    The ATLAS collaboration

    2015-01-01

    ATLAS has fully supported the principle of open access in its publication policy. This document outlines the policy of ATLAS as regards open access to data at different levels as described in the DPHEP model. The main objective is to make the data available in a usable way to people external to the ATLAS collaboration.

  6. Open Access policy effectiveness

    OpenAIRE

    Swan, Alma

    2015-01-01

    This presentation discusses the policy elements that are necessary for an effective open access policy, according to the findings of the analysis of the revamped ROARMAP tool for open access policies by PASTEUR4OA. It contains graphs, charts and numbers for evidence-based arguments

  7. Market Access and Welfare

    DEFF Research Database (Denmark)

    Raimondos-Møller, Pascalis; Woodland, Alan D.

    2015-01-01

    Well known tariff reform rules that are guaranteed to increase welfare will not necessarily increase market access, while rules that are guaranteed to increase market access will not necessarily increase welfare. The present paper proposes a new set of tariff reforms that can achieve both...

  8. Public Access Defibrillation

    DEFF Research Database (Denmark)

    Agerskov, Marianne; Nielsen, Anne Møller; Hansen, Carolina Malta

    2015-01-01

    of OHCA-cases where an accessible AED was located within 100 m. In addition, we assessed 30-day survival. METHODS: Using data from the Mobile Emergency Care Unit and the Danish Cardiac Arrest Registry, we identified 521 patients with OHCA between October 1, 2011 and September 31, 2013 in Copenhagen......, Denmark. RESULTS: An AED was applied in 20 cases (3.8%, 95% CI [2.4 to 5.9]). Irrespective of AED accessibility, an AED was located within 100 m of a cardiac arrest in 23.4% (n=102, 95% CI [19.5 to 27.7]) of all OHCAs. However, at the time of OHCA, an AED was located within 100 m and accessible in only 15...... to ambulance arrival, but 15.1% of all OHCAs occurred within 100 m of an accessible AED. This indicates the potential of utilising AED networks by improving strategies for AED accessibility and referring bystanders of OHCA to existing AEDs....

  9. Coded Random Access

    DEFF Research Database (Denmark)

    Paolini, Enrico; Stefanovic, Cedomir; Liva, Gianluigi

    2015-01-01

    , in which the structure of the access protocol can be mapped to a structure of an erasure-correcting code defined on graph. This opens the possibility to use coding theory and tools for designing efficient random access protocols, offering markedly better performance than ALOHA. Several instances of coded......The rise of machine-to-machine communications has rekindled the interest in random access protocols as a support for a massive number of uncoordinatedly transmitting devices. The legacy ALOHA approach is developed under a collision model, where slots containing collided packets are considered...... as waste. However, if the common receiver (e.g., base station) is capable to store the collision slots and use them in a transmission recovery process based on successive interference cancellation, the design space for access protocols is radically expanded. We present the paradigm of coded random access...

  10. Access to Preventive Health Care for Undocumented Migrants: A Comparative Study of Germany, The Netherlands and Spain from a Human Rights Perspective

    Directory of Open Access Journals (Sweden)

    Veronika Flegar

    2016-02-01

    Full Text Available The present study analyzes the preventive health care provisions for nationals and undocumented migrants in Germany, the Netherlands and Spain in light of four indicators derived from the United Nations Committee on Economic, Social and Cultural Rights’ General Comment 14 (GC 14. These indicators are (i immunization; (ii education and information; (iii regular screening programs; and (iv the promotion of the underlying determinants of health. It aims to answer the question of what preventive health care services for undocumented migrants are provided for in Germany, the Netherlands and Spain and how this should be evaluated from a human rights perspective. The study reveals that the access to preventive health care for undocumented migrants is largely insufficient in all three countries but most extensive in the Netherlands and least extensive in Germany. The paper concludes that a human rights-based approach to health law and policy can help to refine and concretize the individual rights and state obligations for the preventive health care of undocumented migrants. While the human rights framework is still insufficiently clear in some respects, the research concedes the added value of a rights-based approach as an evaluation tool, advocacy framework and moral principle to keep in mind when adopting or evaluating state policies in the health sector.

  11. Five years' experience of transverse groin incision for femoral artery access in arterial reconstructive surgery: parallel observational longitudinal group comparison study.

    LENUS (Irish Health Repository)

    Beirne, Christopher

    2008-07-01

    Vertical groin incisions (VGIs) have been used to access femoral vessels, but reports allude to wound complications. Our aim was to compare VGI with transverse groin incision (TGI) for femoral artery exposure. Over a 5-year interval, 196 patients with 284 femoral artery exposures for supra- and infrainguinal procedures were studied. Primary endpoints were surgical skin site wound infection, seroma, haematoma formation, and major lower limb amputation. Secondary endpoints were graft patency, wound paresthesias, and length of hospital stay. There were 160 TGIs and 124 VGIs. The demographics and risk factor profile were not statistically different between groups. Seroma developed in 4.4% of TGIs and 13.7% of VGIs (p= .005). The complicated skin and soft tissue infection rate was five times greater with VGI (p= .001). The VGI group had a significantly higher rate of major amputation (p= .0005). Significantly higher graft failure rates were observed in the VGI group (p= .011). No paresthesia was reported in any TGI wound. The mean hospital stay was also significantly shorter in the TGI group (p= .006). The study data support and expound on the theory that an alternative incision to VGI offers lower short- and long-term morbidity. Our findings sustain the selection of the TGI in femoral artery surgery for both supra- and infrainguinal procedures without compromise of vessel exposure.

  12. Women-focused development intervention reduces delays in accessing emergency obstetric care in urban slums in Bangladesh: a cross-sectional study

    Directory of Open Access Journals (Sweden)

    Banu Morsheda

    2011-01-01

    Full Text Available Abstract Background Recognizing the burden of maternal mortality in urban slums, in 2007 BRAC (formally known as Bangladesh Rural Advancement Committee has established a woman-focused development intervention, Manoshi (the Bangla abbreviation of mother, neonate and child, in urban slums of Bangladesh. The intervention emphasizes strengthening the continuum of maternal, newborn and child care through community, delivery centre (DC and timely referral of the obstetric complications to the emergency obstetric care (EmOC facilities. This study aimed to assess whether Manoshi DCs reduces delays in accessing EmOC. Methods This cross-sectional study was conducted during October 2008 to January 2009 in the slums of Dhaka city among 450 obstetric complicated cases referred either from DCs of Manoshi or from their home to the EmOC facilities. Trained female interviewers interviewed at their homestead with structured questionnaire. Pearson's chi-square test, t-test and Mann-Whitney test were performed. Results The median time for making the decision to seek care was significantly longer among women who were referred from home than referred from DCs (9.7 hours vs. 5.0 hours, p Conclusions Manoshi program reduces the first delay for life-threatening conditions but not non-life-threatening complications even though providing financial assistance. Programme should give more emphasis on raising awareness through couple/family-based education about maternal complications and dispel fear of clinical care to accelerate seeking EmOC.

  13. The role of urine pregnancy testing in facilitating access to antenatal care and abortion services in South Africa: a cross-sectional study

    Directory of Open Access Journals (Sweden)

    Moodley Jennifer

    2006-08-01

    Full Text Available Abstract Background Effective confirmation of pregnancy is a basic component of reproductive health services. It is a prerequisite for accessing antenatal care (AnC if the pregnancy is wanted and abortion services if the pregnancy is unwanted. This study examined the role of urine pregnancy testing in the timing of presentation for pregnancy-care. Method A cross-sectional study was conducted among 158 women presenting for antenatal care and 164 women presenting for abortion at public sector clinics in Cape Town, South Africa. Results The median gestational age at first presentation was 23 weeks for AnC clients and 13 weeks for abortion clients. Obtaining a urine pregnancy test of one's own accord was associated with a decrease in the gestational age at presentation of 3.6 and 1.4 weeks for antenatal and abortion clients, respectively, independently of all other factors. Conclusion Given the proven clinical benefit and public health impact of early presentation for antenatal and abortion services, strategies to decrease gestational age at presentation for pregnancy care should be given priority. 'Fast-track' urine pregnancy testing services should be established in public sector clinics in South Africa.

  14. Accessibility of antiretroviral therapy in Ghana: convenience of access.

    Science.gov (United States)

    Addo-Atuah, Joyce; Gourley, Dick; Gourley, Greta; White-Means, Shelley I; Womeodu, Robin J; Faris, Richard J; Addo, Nii Akwei

    2012-01-01

    The convenience of accessing antiretroviral therapy (ART) is important for initial access to care and subsequent adherence to ART. We conducted a qualitative study of people living with HIV/AIDS (PLWHA) and ART healthcare providers in Ghana in 2005. The objective of this study was to explore the participants' perceived convenience of accessing ART by PLWHA in Ghana. The convenience of accessing ART was evaluated from the reported travel and waiting times to receive care, the availability, or otherwise, of special considerations, with respect to the waiting time to receive care, for those PLWHA who were in active employment in the formal sector, the frequency of clinic visits before and after initiating ART, and whether the PLWHA saw the same or different providers at each clinic visit (continuity of care). This qualitative study used in-depth interviews based on Yin's case-study research design to collect data from 20 PLWHA and 24 ART healthcare providers as study participants. • Reported travel time to receive ART services ranged from 2 to 12 h for 30% of the PLWHA. • Waiting time to receive care was from 4 to 9 h. • While known government workers, such as teachers, were attended to earlier in some of the centres, this was not a consistent practice in all the four ART centres studied. • The PLWHA corroborated the providers' description of the procedure for initiating and monitoring ART in Ghana. • PLWHA did not see the same provider every time, but they were assured that this did not compromise the continuity of their care. Our study suggests that convenience of accessing ART is important to both PLWHA and ART healthcare providers, but the participants alluded to other factors, including open provider-patient communication, which might explain the PLWHA's understanding of the constraints under which they were receiving care. The current nation-wide coverage of the ART programme in Ghana, however, calls for the replication of this study to identify

  15. Subsidized optimal ART for HIV-positive temporary residents of Australia improves virological outcomes: results from the Australian HIV Observational Database Temporary Residents Access Study

    Directory of Open Access Journals (Sweden)

    Kathy Petoumenos

    2015-02-01

    Full Text Available Introduction: HIV-positive (HIV+ temporary residents living in Australia legally are unable to access government subsidized antiretroviral treatment (ART which is provided via Medicare to Australian citizens and permanent residents. Currently, there is no information systematically being collected on non-Medicare eligible HIV+ patients in Australia. The objectives of this study are to describe the population recruited to the Australian HIV Observational Database (AHOD Temporary Residents Access Study (ATRAS and to determine the short- and long-term outcomes of receiving (subsidized optimal ART and the impact on onwards HIV transmission. Methods: ATRAS was established in 2011. Eligible patients were recruited via the AHOD network. Key HIV-related characteristics were recorded at baseline and prospectively. Additional visa-related information was also recorded at baseline, and updated annually. Descriptive statistics were used to describe the ATRAS cohort in terms of visa status by key demographic characteristics, including sex, region of birth, and HIV disease status. CD4 cell count (mean and SD and the proportion with undetectable (<50 copies/ml HIV viral load are reported at baseline, 6 and 12 months of follow-up. We also estimate the proportion reduction of onward HIV transmission based on the reduction in proportion of people with detectable HIV viral load. Results: A total of 180 patients were recruited to ATRAS by June 2012, and by July 2013 39 patients no longer required ART via ATRAS, 35 of whom became eligible for Medicare-funded medication. At enrolment, 63% of ATRAS patients were receiving ART from alternative sources, 47% had an undetectable HIV viral load (<50 copies/ml and the median CD4 cell count was 343 cells/µl (IQR: 222–479. At 12 months of follow-up, 85% had an undetectable viral load. We estimated a 75% reduction in the risk of onward HIV transmission with the improved rate of undetectable viral load. Conclusions: The

  16. A case study of the Secure Anonymous Information Linkage (SAIL) Gateway: a privacy-protecting remote access system for health-related research and evaluation.

    Science.gov (United States)

    Jones, Kerina H; Ford, David V; Jones, Chris; Dsilva, Rohan; Thompson, Simon; Brooks, Caroline J; Heaven, Martin L; Thayer, Daniel S; McNerney, Cynthia L; Lyons, Ronan A

    2014-08-01

    With the current expansion of data linkage research, the challenge is to find the balance between preserving the privacy of person-level data whilst making these data accessible for use to their full potential. We describe a privacy-protecting safe haven and secure remote access system, referred to as the Secure Anonymised Information Linkage (SAIL) Gateway. The Gateway provides data users with a familiar Windows interface and their usual toolsets to access approved anonymously-linked datasets for research and evaluation. We outline the principles and operating model of the Gateway, the features provided to users within the secure environment, and how we are approaching the challenges of making data safely accessible to increasing numbers of research users. The Gateway represents a powerful analytical environment and has been designed to be scalable and adaptable to meet the needs of the rapidly growing data linkage community.

  17. Impact of supervised drug consumption services on access to and engagement with care at a palliative and supportive care facility for people living with HIV/AIDS: a qualitative study

    Directory of Open Access Journals (Sweden)

    Ryan McNeil

    2014-03-01

    Full Text Available Introduction: Improvements in the availability and effectiveness of highly active antiretroviral therapy (HAART have prolonged the lives of people living with HIV/AIDS. However, mortality rates have remained high among populations that encounter barriers to accessing and adhering to HAART, notably people who use drugs. This population consequently has a high burden of illness and complex palliative and supportive care needs, but is often unable to access these services due to anti-drug policies and discrimination. In Vancouver, Canada, the Dr. Peter Centre (DPC, which operates a 24-bed residential HIV/AIDS care facility, has sought to improve access to palliative and supportive care services by adopting a comprehensive harm reduction strategy, including supervised injection services. We undertook this study to explore how the integration of comprehensive harm reduction services into this setting shapes access to and engagement with care. Methods: Qualitative interviews were conducted with 13 DPC residents between November 2010 and August 2011. Interviews made use of a semistructured interview guide which facilitated discussion regarding how the DPC Residence's model of care (a shaped healthcare access, (b influenced healthcare interactions and (c impacted drug use practices and overall health. Interview transcripts were analysed thematically. Results: Participant accounts highlight how the harm reduction policy altered the structural-environmental context of healthcare services and thus mediated access to palliative and supportive care services. Furthermore, this approach fostered an atmosphere in which drug use could be discussed without the risk of punitive action, and thus increased openness between residents and staff. Finally, participants reported that the environmental supports provided by the DPC Residence decreased drug-related risks and improved health outcomes, including HAART adherence and survival. Conclusions: This study highlights

  18. Surveillance and Monitoring of Dialysis Access

    Directory of Open Access Journals (Sweden)

    Lalathaksha Kumbar

    2012-01-01

    Full Text Available Vascular access is the lifeline of a hemodialysis patient. Currently arteriovenous fistula and graft are considered the permanent options for vascular access. Monitoring and surveillance of vascular access are an integral part of the care of hemodialysis patient. Although different techniques and methods are available for identifying access dysfunction, the scientific evidence for the optimal methodology is lacking. A small number of randomized controlled trials have been performed evaluating different surveillance techniques. We performed a study of the recent literature published in the PUBMED, to review the scientific evidence on different methodologies currently being used for surveillance and monitoring and their impact on the care of the dialysis access. The limited randomized studies especially involving fistulae and small sample size of the published studies with conflicting results highlight the need for a larger multicentered randomized study with hard clinical end points to evaluate the optimal surveillance strategy for both fistula and graft.

  19. Interventions to increase access to STI services: A study of England?s `High Impact Changes? across three central London clinics

    OpenAIRE

    Menon-Johansson, Anatole S; Cohen, Charlotte; Jones, Rachael; Nwokolo, Nneka; McOwan, Alan; Barton, Simon E.; Mandalia, Sundhiya; Sullivan, Ann K.

    2010-01-01

    Abstract Background Increasing access to sexual health services is a key objective for the Department of Health (DH) in England and Wales. In 2006 the DH published ten high impact changes (HICs) designed to enhance 48-hour access to genitourinary medicine services. However, there is limited evidence on the effectiveness of the proposed interventions. We therefore evaluated the implementation of five HICs in three sexual health clinics over four years. These HICs included a t...

  20. Monitoring and Surveillance of Hemodialysis Access.

    Science.gov (United States)

    Koirala, Nischal; Anvari, Evamaria; McLennan, Gordon

    2016-03-01

    Access surveillance using invasive or noninvasive methods with an objective to improve access patency and decrease hospital admissions for access dysfunction in dialysis population has been promoted, but its success to predict incipient thrombosis and subsequent access failure is a controversial topic. Some studies have shown improvement in access outcomes, while others have failed to demonstrate an ideal method to diagnose access problems. Furthermore, the use of endovascular interventions such as percutaneous transluminal angioplasty to timely correct access problem might itself be a promoter of neointimal hyperplasia and restenosis during balloon angioplasty. There are significant costs and efforts associated with routine dialysis surveillance; therefore, it is necessary to understand whether such programs will help improve access-related problems and guarantee adequate dialysis care. It is generally agreed upon that despite the lack of guaranteed success of surveillance, such strategies have helped improve dialysis management, resulted in decreased costs and hospitalizations, and represented clinically relevant indications of failure prior to planning any radiological or surgical intervention. In this study, the authors review monitoring and surveillance measures in place, and their associated merits and limitations to detect stenosis and prevent incidences of vascular access thrombosis.

  1. STUDY ON ACCESS CONTROL FOR WEB SERVICES BASED ON ABAC%基于ABAC的Web Services访问控制研究

    Institute of Scientific and Technical Information of China (English)

    夏春涛; 杨艳丽; 曹利峰

    2012-01-01

    为解决Web Services访问控制问题,分析了传统访问控制模型在Web Services应用中的不足,给出了面向Web Services 的基于属性的访问控制模型ABAC(Attribute Based Access Control)的定义,设计了ABAC访问控制架构,并利用可扩展的访问控制标记语言XACML( eXtensible Access Control Markup Language)实现了细粒度的Web Services访问控制系统.系统的应用有效保护了Web Services资源.%To deal with access control for web services, the problem of application of traditional access control model in web services is analysed, then the definition of web services-oriented attribute-based access control ( ABAC) model is presented, and the architecture of ABAC is designed. Furthermore, the fine-grained access control system for web services is implemented with XACML, the application of the system has effectively protected the resources of web services.

  2. Care seeking behaviour and barriers to accessing services for sexually transmitted infections among female sex workers in Laos: a cross-sectional study

    Directory of Open Access Journals (Sweden)

    Phrasisombath Ketkesone

    2012-02-01

    Full Text Available Abstract Background Prompt, correct diagnosis and treatment with health information are essential components of reproductive tract infection (RTI and sexually transmitted infection (STI services. This study aims to describe care seeking behaviour and barriers to accessing RTI/STI services among female sex workers (FSWs in Laos. Methods A cross-sectional survey using closed and open-ended questions was performed in six districts along Road 9, traversing Savannakhet province from Thailand to Vietnam. In total, 407 FSWs were interviewed. The data were analyzed and presented descriptively. Multiple logistic regression analysis was applied to assess associations between respondents' background characteristics and care seeking behaviour. Results About half of the respondents (49% were less than or equal to 19 years of age, and 50% had started or completed secondary school. Fifty-eight percent had been engaged in sex work for less than 1 year. Eighty-six percent of the respondents reported RTI/STI signs or symptoms currently or in the last 3 months but only two-thirds of those with symptoms sought treatment. Source of treatment for the last RTI/STI episode was the drop-in centre (53% followed by a public hospital (23%, private clinic (12%, private pharmacy (9%, and herbalist (2%. The main barriers to service use were long waiting time, inconvenient location of the clinic, not knowing where to get the services needed, and negative attitudes among healthcare providers. Care seeking behaviour was associated with longer duration of sex work (OR = 2.6, 95%CI 1.52-5.36. Forty-four percent received health information from peer educators, 34% from fellow friends, 26% from a pimp, and 26% had received information from a healthcare provider during the visit. Conclusion There were several barriers to accessing RTI/STI services and they were related to both structural and individual factors. Innovative STI service strategies to inform FSWs about the importance of

  3. Clinical outcomes of HER2-positive metastatic breast cancer patients with brain metastasis treated with lapatinib and capecitabine: an open-label expanded access study in Korea

    Directory of Open Access Journals (Sweden)

    Ro Jungsil

    2012-07-01

    Full Text Available Abstract Background To evaluate efficacy in patients with brain metastasis (BM on entry into the lapatinib expanded access program (LEAP. Methods LEAP is a worldwide, single-arm, open-label study. HER2-positive, locally-advanced or metastatic breast cancer patients with progression after an anthracycline, taxane, and trastuzumab were eligible. Patients received capecitabine 2000 mg/m2 daily in two divided doses, days 1–14, every 21 days and lapatinib 1250 mg once daily. Results Among 186 patients enrolled in 6 Korean centers, 58 had BM. Progression-free survival (PFS was 18.7 weeks in patients with BM and 19.4 weeks without BM (P = 0.88. In patients with BM, brain response was synchronized with systemic responses (P = 0.0001. Overall survival (OS was 48.9 weeks in patients with BM and 64.6 weeks without BM (P = 0.23. Multivariable analysis found hormone receptor positivity (P = 0.003 and clinical benefit rate (CBR of combined systemic and brain disease (P  Conclusion Lapatinib plus capecitabine is equally effective in patients with or without BM. Trial registration ClinicalTrials.gov (NCT00338247

  4. Pilot Study of the Effects of Simulated Turbine Passage Pressure on Juvenile Chinook Salmon Acclimated with Access to Air at Absolute Pressures Greater than Atmospheric

    Energy Technology Data Exchange (ETDEWEB)

    Carlson, Thomas J.; Abernethy, Cary S.

    2005-04-28

    The impacts of pressure on juvenile salmon who pass through the turbines of hydroelectric dams while migrating downstream on the Columbia and Snake rivers has not been well understood, especially as these impacts relate to injury to the fish's swim bladder. The laboratory studies described here were conducted by Pacific Northwest National Laboratory for the US Army Corps of Engineers Portland District at PNNL's fisheries research laboratories in 2004 to investigate the impacts of simulated turbine passage pressure on fish permitted to achieve neutral buoyancy at pressures corresponding to depths at which they are typically observed during downstream migration. Two sizes of juvenile Chinook salmon were tested, 80-100mm and 125-145mm total length. Test fish were acclimated for 22 to 24 hours in hyperbaric chambers at pressures simulating depths of 15, 30, or 60 ft, with access to a large air bubble. High rates of deflated swim bladders and mortality were observed. Our results while in conclusive show that juvenile salmon are capable of drawing additional air into their swimbladder to compensate for the excess mass of implanted telemetry devices. However they may pay a price in terms of increased susceptibility to injury, predation, and death for this additional air.

  5. Access 2010 for dummies

    CERN Document Server

    Ulrich Fuller, Laurie

    2010-01-01

    A friendly, step-by-step guide to the Microsoft Office database application Access may be the least understood and most challenging application in the Microsoft Office suite. This guide is designed to help anyone who lacks experience in creating and managing a database learn to use Access 2010 quickly and easily. In the classic For Dummies tradition, the book provides an education in Access, the interface, and the architecture of a database. It explains the process of building a database, linking information, sharing data, generating reports, and much more.As the Micr

  6. Market Access and Welfare

    DEFF Research Database (Denmark)

    Raimondos-Møller, Pascalis; Woodland, Alan D.

    According to the literature, well known tariff reform rules that are guaranteed to increase welfare will not necessarily increase market access, while rules that are guaranteed to increase market access will not necessarily increase welfare. Such conflict between welfare and market access...... objectives of trade policy is problematic and calls for finding alternative tariff reform rules that can achieve both objectives at the same time. The present paper contributes to this aim by using a new set of tariff reforms that are based on local optimality. Using such reforms it is shown that market...

  7. Health Care Access among Deaf People

    Science.gov (United States)

    Kuenburg, Alexa; Fellinger, Paul; Fellinger, Johannes

    2016-01-01

    Access to health care without barriers is a clearly defined right of people with disabilities as stated by the UN Convention on the Rights of People with Disabilities. The present study reviews literature from 2000 to 2015 on access to health care for deaf people and reveals significant challenges in communication with health providers and gaps in…

  8. Energy services for the poor in West Africa. Sub-regional 'Energy access' study of West Africa

    Energy Technology Data Exchange (ETDEWEB)

    Sokona, Y.; Sarr, S.; Wade, S.

    2003-11-01

    'Ivoire, Nigeria and Senegal it ranges from 30% to 40%, and it is as low as 4% in Niger and Guinea Bissau. In addition to these disparities betaveen countries, a large disparity exists within individual countries betaveen urban, periurban and rural populations in terms of access to electricity. For example, in Senegal, while the urban population has an access rate of 54%, in the rural areas this drops to just 8%; in Mali the rate is 32% in the urban area and less than 1 % in rural areas (ECOWAS, 2000). The low level of access of the poor to electricity, though due in part to the high level of poverty, can also be partly attributed to the underdevelopment of the electricity supply industry infrastructure in the sub-region. The countries with the highest electrification rates are these that have the most developed industrial infrastructure and equipment (Nigeria, Senegal, Cote d'Ivoire). This study was conducted under the aegis of the Global Network on Energy for Sustainable Development (GNESD) and attempts to assess the impact of electricity sector reforms on poor people in West Africa. In order to do so, this report details the content of the reforms: the objectives, organisational formats, and technical and financial provisions. It also analyses their effects on electricity supply and their impact on the poor. Because of the large size of West Africa and the limited resources means allocated to the study, ave undertook two case studies. The countries were chosen so as to be representative of the differing realities of the sub-region. Senegal and Mali were selected because each one is a member of one of the two groups into which the countries of the region can be placed according to the following criteria: rate of electrification (Senegal is among the best-off with a rate of over 30%, while the latter is one of the worst-off with a rate of just 10%); density of infrastructure and equipment; rate of urbanisation; and rate of industrialisation (Senegal being amongst the most

  9. Implementation of the Broad—band User Access Network and the Study of the Key Algorithm for Improving the Performance of Asymmetrical Networks

    Institute of Scientific and Technical Information of China (English)

    LIHui-lin; HUZheng-ming; 等

    2001-01-01

    This thesis is based on the design and develop-ment of ADSL access networks.We have completed the hardware and software functions in two main ADSL equipments:ATU-C and ATU-R .With the system design, we carry out researches to find out effective methods to improved performance in the following aspects:(a)how to allocate limited band-with among services with different QoS require-ments and (b)what is the effect of asymmetric links on TCP end-to-end flow control mechanism.We make detailed analyses and propose useful solutions to those problems we find.The main contents of this thesis are as follows :(1)the design and realize-tion of ADSL access system.This part includes the principles of ADSL access technology, ADSL broad-band access network architecture, and ATM over ADSL protocol models that we use in our system.We give detailed hardware and software design steps in this part, and list system testing results to show the system performance .In our hardware, the CPU is a RISC microprocessor.Combined with a high-speed digital signal processor, the whole system can hold high reliability.Our software design platform is a pSOS multi-task real-time operation system.We have developred a series of hardware drivers besides other tasks for high level control and interruption processing.Currently, our system has reached the expected performance under test environment.Our next step is the development of DSLAM and in this part we give a feasible design scheme.(2)Packet scheduling policy in ADSL system.In order to opti-mize ATU-R performance, we need a scheduling policy to regulate the order and number of packet output to the uplink.For this purpose, we study the scheduling algorithm design methods in a single net-work node and their performance.After studying the existing algorithms carefully, we first conclude certain important design principles and criterions for scheduling policy evaluation.And then by using ser-vice curve function, we make detailed performance analysis of a

  10. Lexical semantic access and letter access are involved in different aspects of reading

    DEFF Research Database (Denmark)

    Poulsen, Mads

    Purpose: This study investigated the effects of lexical access speed and letter access speed on reading fluency and reading comprehension. We hypothesized that 1) letter access speed would correlate with reading fluency but not comprehension, while 2) lexical access speed would influence reading...... comprehension. For readers who are struggling with recoding, most of the reading effort is probably tied up with recoding, leaving little to be explained by lexical access. Therefore we expected that 3) lexical access speed would primarily predict reading fluency for readers who were no longer struggling...... with recoding. Method: 85 Grade 5 students completed tasks of reading accuracy, fluency, and comprehension. In addition they were tested on isolated letter naming and isolated picture naming tasks as measures of letter and lexical access speed. All items in both naming tasks were unique. Parallel serial rapid...

  11. UK Open Access Policy Landscape

    OpenAIRE

    Picarra, Mafalda

    2014-01-01

    Two distinct paths for open access are being promoted in UK open access policies: open access publishing (gold open access) by RCUK (Gold OA) and self-archiving (green open access) by HEFCE. This requires continuous and coordinated efforts to support universities, academic libraries and researchers in achieving compliance.

  12. United States Access Board

    Science.gov (United States)

    ... an ABA Complaint Upcoming Events November 16 US Business and Leadership Network (USBLN) Webinar November 29 Section 508 Best Practices Webinar: Getting Social - Best Practices for Social Media Accessibility December 01 ...

  13. Access cavity preparation.

    Science.gov (United States)

    Adams, N; Tomson, P L

    2014-03-01

    Each stage of root canal treatment should be carried out to the highest possible standard. The access cavity is arguably the most important technical stage, as subsequent preparation of the root canal(s) can be severely comprised if this is not well executed. Inadequate access can lead to canals being left untreated, poorly disinfected, difficult to shape and obturate, and may ultimately lead to the failure of the treatment. This paper highlights common features in root canal anatomy and outlines basic principles for locating root canals and producing a good access cavity. It also explores each phase of the preparation in detail and offers suggestions of instruments that have been specifically designed to overcome potential difficulties in the process. Good access design and preparation will result in an operative environment which will facilitate cleaning, shaping and obturation of the root canal system in order to maximise success.

  14. Accessibility and assistive products

    Science.gov (United States)

    Rodríguez-Porrero, Cristina

    2009-01-01

    Introduction Accessibility and assistive products and technologies are needed to ensure the rights of persons with disabilities and older persons. Many developments have been implemented in laws, standards, markets and from the consumers perspective, at international, European and national levels. The real issue is that not all the potential users benefit from the use of assistive products or accessible measures. Discussion Innovative methods are needed to allow all potential users to have real advantage of assistive technologies and accessible and design for all facilities. Best practices will be presented and existing gaps and recommendations will be discussed. Cost-benefits aspects will also be presented. Conclusion In order to get advantages from opportunities of globalization, hard work and responsibilities of all stakeholders are needed, so that assistive products and accessibility reach a whole range of situations and environments and contribute to ensure quality of life in a society for all.

  15. Access/AML -

    Data.gov (United States)

    Department of Transportation — The AccessAML is a web-based internet single application designed to reduce the vulnerability associated with several accounts assinged to a single users. This is a...

  16. Vascular Access Procedures

    Science.gov (United States)

    ... the needle directly into the vein during the venous puncture (or access) process. This helps improve the likelihood of a successful venous puncture and also helps the interventional radiologist avoid surrounding ...

  17. Topographic Accessability Index

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — The topographic accessibility index is a measure of elevation in relation to valley floor corrected for variation in valley floor elevation across the western United...

  18. CERN access cards

    CERN Multimedia

    HR Department

    2007-01-01

    Holders of CERN access cards are reminded that the card is an official document. It is important to carry it with you at all times when you are on the site. This applies also to those on standby duty who are called out for emergency interventions. As announced in Weekly Bulletin 13/2006, any loss or theft of access cards must be declared to the competent external authorities.

  19. The universal access handbook

    CERN Document Server

    Stephanidis, Constantine

    2009-01-01

    In recent years, the field of Universal Access has made significant progress in consolidating theoretical approaches, scientific methods and technologies, as well as in exploring new application domains. Increasingly, professionals in this rapidly maturing area require a comprehensive and multidisciplinary resource that addresses current principles, methods, and tools. Written by leading international authorities from academic, research, and industrial organizations and nonmarket institutions, The Universal Access Handbook covers the unfolding scientific, methodological, technological, and pol

  20. How to avoid risks for patients in minimal-access trials: Avoiding complications in clinical first-in-human studies by example of the ADBEE study.

    Science.gov (United States)

    Cezar, Cristina; Korell, Matthias; Tchartchian, Garri; Ziegler, Nicole; Senshu, Kazuhisa; Herrmann, Anja; Larbig, Angelika; De Wilde, Rudy Leon

    2016-08-01

    A clinical trial is a prospective study designed to establish the safety and efficacy of investigational devices in humans, in accordance with the strict guidelines of the Food and Drug Administration (FDA; USA) or European Medicines Agency (EMA; Europe). Before a clinical first-in-human study is initiated, preclinical studies of the investigational product are mandatory, and the results should be sufficient to indicate that the investigational device is acceptably safe for the proposed evaluation in human subjects. The present paper describes an experience of clinical trials, highlighting ways of avoiding possible complications in clinical first-in-human studies. For a better approach to our aim, we exemplified a prospective, randomized, single-blind study, ADBEE. The primary objective was to assess the safety of the ADBLOCK system when used as an adjunct to laparoscopic primary removal of myomas in women wishing to improve pregnancy outcomes.

  1. Modelling study to evaluate two variants for accessing a deep geological repository from the point of view of long-term safety

    Energy Technology Data Exchange (ETDEWEB)

    Poller, Andreas; Zuidema, Piet; Schneider, Jurg W. [National Cooperative for the Disposal of Radioactive Waste (Nagra) Wettingen (Switzerland); Smith, Paul [Safety Assessment Management Switzerland GmbH, Klingnau (Switzerland); Mayer, Gerhard; Hayek, Mohamed [AF-Consult Switzerland Ltd, Baden (Switzerland)

    2013-07-01

    Siting a deep geological repository for radioactive waste essentially involves two interrelated steps: deciding on an appropriate geological environment for the underground facilities and selecting a suitable location for the associated surface facility. An acceptable solution is more easily achieved if some flexibility exists for siting the surface facility, irrespective of the exact position of the underground facilities. Such flexibility is available if a ramp is used as the main access route from the surface facility to the underground facilities. Another option is to use a combination of shafts and (sub)horizontal tunnels as the main access route. Both variants include shafts for ventilation, etc. In this paper, the two variants (i) main access via ramp and (ii) main access via shaft are compared in terms of long-term safety. To this end, the entire network of underground tunnels of a deep geological repository is implemented in an analytical resistor network flow model. Radionuclide release through the tunnel system and the host rock is then calculated with a numerical network transport model, using as input the results from the flow model. The results clearly indicate that, even in case of hypothetically deficient horizontal and sub-horizontal sealing elements, the choice between ramp and shaft as the main access route is irrelevant to long-term safety. (authors)

  2. Does Internet Reporting Improve the Accessibility of Financial Information in a Global World? A Comparative Study of New Zealand and Indian Companies

    Directory of Open Access Journals (Sweden)

    Bikram Chatterjee

    2008-12-01

    Full Text Available The accessibility of business reporting, including financial reports on companywebsites is not necessarily increased by providing more information on websites. Thequality of Internet-based information is affected by both the accessibility and quantityof information provided. However, the accessibility of the information is an underresearched area. This paper contributes to the existing body of knowledge on webbasedbusiness reporting, by considering the dimension of accessibility in terms ofwebsite appearance and visual design from four different perspectives. The aim is toconsider the differences that occur in website organisation as a way of considering theaccessibility of information provided on company websites. The paper considers thedifferences in the accessibility of website information between New Zealand andIndian companies as a means of demonstrating the variation that can occur acrosscountries as well as within the same reporting structure. We conclude that Internetfinancial reporting does provide the illusion of comparability but without a moresustained focus on the harmonisation of terminology and attributes included inInternet reporting, the potential for comparison is reduced.

  3. 中外开放存取政策比较研究%Comparative Study on Open Access Poficy for Chinese and Foreign Books and Periodicals

    Institute of Scientific and Technical Information of China (English)

    赵清霞; 赵文涟; 王召兵

    2011-01-01

    推动开放存取的发展,需要政策的支持。中国的开放存取政策与国外的开放存取政策相比存在着很大的差距和不足,分析和借鉴国外的先进经验和方法,可促进我国的开放存取政策趋向完善、促进开放存取的发展、促进学术信息的广泛交流与传播。%It needs policy support to promote the development of open access. China' s open access policies have significant gaps and deficiencies compared with foreign open access policies. Analyzing and learning fi'om foreign advanced experience and methods can promote China' s open access policies, the development of open access and information' s wide dissemination.

  4. Access to scientific publications: the scientist's perspective.

    Directory of Open Access Journals (Sweden)

    Yegor Voronin

    Full Text Available BACKGROUND: Scientific publishing is undergoing significant changes due to the growth of online publications, increases in the number of open access journals, and policies of funders and universities requiring authors to ensure that their publications become publicly accessible. Most studies of the impact of these changes have focused on the growth of articles available through open access or the number of open-access journals. Here, we investigated access to publications at a number of institutes and universities around the world, focusing on publications in HIV vaccine research--an area of biomedical research with special importance to the developing world. METHODS AND FINDINGS: We selected research papers in HIV vaccine research field, creating: 1 a first set of 50 most recently published papers with keywords "HIV vaccine" and 2 a second set of 200 articles randomly selected from those cited in the first set. Access to the majority (80% of the recently published articles required subscription, while cited literature was much more accessible (67% freely available online. Subscriptions at a number of institutions around the world were assessed for providing access to subscription-only articles from the two sets. The access levels varied widely, ranging among institutions from 20% to 90%. Through the WHO-supported HINARI program, institutes in low-income countries had access comparable to that of institutes in the North. Finally, we examined the response rates for reprint requests sent to corresponding authors, a method commonly used before internet access became widespread. Contacting corresponding authors with requests for electronic copies of articles by email resulted in a 55-60% success rate, although in some cases it took up to 1.5 months to get a response. CONCLUSIONS: While research articles are increasingly available on the internet in open access format, institutional subscriptions continue to play an important role. However

  5. Evaluating the Usefulness of Compulsory Licensing in Developing Countries: A Comparative Study of Thai and Brazilian Experiences Regarding Access to Aids Treatments.

    Science.gov (United States)

    Guennif, Samira

    2016-10-04

    While compulsory licensing (CL) is described in the TRIPS agreement as flexibility to protect public health by improving access to medicines in developing countries, a recent literature contends adversely that CL may harm public health. Therefore, this article intends to evaluate the usefulness of CL in the South through the prism of obligations and goals entrusted to patent holders (the effective and non-abusive exploitation of patents in order to achieve industrial and health developments) and in light of experiences in Thailand and Brazil regarding access to antiretroviral drugs. In this way, it shows that the obligations assigned to patent holders were better served by the recipients of CL and brought significant health and industrial benefits in the two high middle-income countries. In particular, CL allowed the scaling-up of free and universal access to antiretroviral drugs by assuring the financial sustainability of these public health programs endangered by monopolistic practices from patent holders.

  6. How Accessible Are the Geosciences? a Study of Professionally Held Perceptions and What They Mean for the Future of Geoscience Workforce Development

    Science.gov (United States)

    Atchison, C.; Libarkin, J. C.

    2014-12-01

    Individuals with disabilities are not entering pathways leading to the geoscience workforce; the reasons for which continue to elude access-focused geoscience educators. While research has focused on barriers individuals face entering into STEM disciplines, very little research has considered the role that practitioner perceptions play in limiting access and accommodation to scientific disciplines. The authors argue that changing the perceptions within the geoscience community is an important step to removing barriers to entry into the myriad fields that make up the geosciences. This paper reports on an investigation of the perceptions that geoscientist practitioners hold about opportunities for engagement in geoscience careers for people with disabilities. These perspectives were collected through three separate iterations of surveys at three professional geoscience meetings in the US and Australia between 2011 and 2012. Respondents were asked to indicate the extent to which individuals with specific types of disabilities would be able to perform various geoscientific tasks. The information obtained from these surveys provides an initial step in engaging the larger geoscience community in a necessary discussion of minimizing the barriers of access to include students and professionals with disabilities. The results imply that a majority of the geoscience community believes that accessible opportunities exist for inclusion regardless of disability. This and other findings suggest that people with disabilities are viewed as viable professionals once in the geosciences, but the pathways into the discipline are prohibitive. Perceptions of how individuals gain entry into the field are at odds with perceptions of accessibility. This presentation will discuss the common geoscientist perspectives of access and inclusion in the geoscience discipline and how these results might impact the future of the geoscience workforce pathway for individuals with disabilities.

  7. Effect of Restricting Access to Health Care on Health Expenditures among Asylum-Seekers and Refugees: A Quasi-Experimental Study in Germany, 1994-2013.

    Directory of Open Access Journals (Sweden)

    Kayvan Bozorgmehr

    Full Text Available Access to health care for asylum-seekers and refugees (AS&R in Germany is initially restricted before regular access is granted, allegedly leading to delayed care and increasing costs of care. We analyse the effects of (a restricted access; and (b two major policy reforms (1997, 2007 on incident health expenditures for AS&R in 1994-2013.We used annual, nation-wide, aggregate data of the German Federal Statistics Office (1994-2013 to compare incident health expenditures among AS&R with restricted access (exposed to AS&R with regular access (unexposed. We calculated incidence rate differences (∆IRt and rate ratios (IRRt, as well as attributable fractions among the exposed (AFe and the total population (AFp. The effects of between-group differences in need, and of policy reforms, on differences in per capita expenditures were assessed in (segmented linear regression models. The exposed and unexposed groups comprised 4.16 and 1.53 million person-years. Per capita expenditures (1994-2013 were higher in the group with restricted access in absolute (∆IRt = 375.80 Euros [375.77; 375.89] and relative terms (IRR = 1.39. The AFe was 28.07% and the AFp 22.21%. Between-group differences in mean age and in the type of accommodation were the main independent predictors of between-group expenditure differences. Need variables explained 50-75% of the variation in between-group differences over time. The 1997 policy reform significantly increased ∆IRt adjusted for secular trends and between-group differences in age (by 600.0 Euros [212.6; 986.2] and sex (by 867.0 Euros [390.9; 1342.5]. The 2007 policy reform had no such effect.The cost of excluding AS&R from health care appears ultimately higher than granting regular access to care. Excess expenditures attributable to the restriction were substantial and could not be completely explained by differences in need. An evidence-informed discourse on access to health care for AS&R in Germany is needed; it

  8. Facilitators and barriers to accessing reproductive health care for migrant beer promoters in Cambodia, Laos, Thailand and Vietnam: A mixed methods study

    Directory of Open Access Journals (Sweden)

    Webber Gail

    2012-07-01

    Full Text Available Abstract Background The purpose of the research was to assess access to sexual and reproductive health services for migrant women who work as beer promoters. This mixed methods research was conducted in Phnom Penh, Cambodia, Bangkok, Thailand, Vientiane, Laos, and Hanoi, Vietnam during 2010 to 2011. Methods Focus groups were held with beer promoters and separate focus groups or interviews with key informants to explore the factors affecting beer promoters’ access to health care institutions for reproductive health care. The findings of the focus groups were used to develop a survey for beer promoters. This survey was conducted in popular health institutions for these women in each of the four Asian cities. Results Several common themes were evident. Work demands prevented beer promoters from accessing health care. Institutional factors affecting care included cost, location, environmental factors (e.g. waiting times, cleanliness and confidentiality and service factors (e.g. staff attitudes, clinic hours, and availability of medications. Personal factors affecting access were shyness and fear, lack of knowledge, and support from family and friends. The survey of the beer promoters confirmed that cost, location and both environmental and service factors impact on access to health care services for beer promoters. Many beer promoters are sexually active, and a significant proportion of those surveyed rely on sex work to supplement their income. Many also drink with their clients. Despite a few differences amongst the surveyed population, the findings were remarkably similar across the four research sites. Conclusions Recommendations from the research include the provision of evening and weekend clinic hours to facilitate access, free or low cost clinics, and health insurance through employer or government plans which are easy to access for migrants. Other improvements that would facilitate the access of beer promoters to these services include

  9. Assessing the potential clinical impact of reciprocal drug approval legislation on access to novel therapeutics in the USA: a cohort study

    Science.gov (United States)

    Larochelle, Matthieu; Downing, Nicholas S; Ross, Joseph S; David, Frank S

    2017-01-01

    Objective To quantify the potential effect of reciprocal approval legislation on access to clinically impactful therapeutics in the USA. Design A cohort study. Setting New therapeutics approved by the Food and Drug Administration (FDA), European Medicines Agency (EMA) and/or Health Canada between 2000 and 2010. Main outcome measures Characteristics of new therapeutics approved by the EMA and/or Health Canada before the FDA, including mechanistic novelty, likely clinical impact, size of the affected population and FDA review outcome. Results From 2001 to 2010, 282 drugs were approved in the USA, Europe or Canada, including 172 (61%) first approved in the USA, 24 (9%) never approved in the USA, and 86 (30%) approved in the USA after Europe and/or Canada. Of the 110 new drugs approved in Europe and/or Canada before the USA, 37 (34%) had a novel mechanisms of action compared with drugs already approved by the FDA, but only 10 (9%) were for conditions lacking alternate available therapies in the USA at the time of ex-US approval—of which the majority (9/10; 90%) were indicated for rare diseases. 12 of the 37 agents with novel mechanisms of action approved first in Europe and/or Canada (32%) had their initial FDA submissions rejected for safety reasons—including 2 drugs that were ultimately withdrawn from the market in Europe due to safety concerns. Conclusions If enacted, reciprocal approval legislation would most likely benefit only a small number of US patients receiving treatment for rare diseases, and the benefit may be somewhat mitigated by an increased exposure to harms. PMID:28179418

  10. Access to bank finance for Scottish SMEs.

    OpenAIRE

    2008-01-01

    There is evidence that some SMEs may still face difficulties in accessing bank finance from lenders (CEEDR, 2007). This paper reports an in-depth study into demand and supply side issues relating to access to bank finance by Scottish SMEs and whether there is still market failure associated with good, bankable business cases from SMEs that do not receive finance. We argue that our study utilises innovative methodology and is relatively rare as a robust study in this area. We combine demand...

  11. IVOA Simple Image Access

    CERN Document Server

    Dowler, Patrick; Bonnarel, François

    2016-01-01

    The Simple Image Access protocol (SIA) provides capabilities for the discovery, description, access, and retrieval of multi-dimensional image datasets, including 2-D images as well as datacubes of three or more dimensions. SIA data discovery is based on the ObsCore Data Model (ObsCoreDM), which primarily describes data products by the physical axes (spatial, spectral, time, and polarization). Image datasets with dimension greater than 2 are often referred to as datacubes, cube or image cube datasets and may be considered examples of hypercube or n-cube data. In this document the term "image" refers to general multi-dimensional datasets and is synonymous with these other terms unless the image dimensionality is otherwise specified. SIA provides capabilities for image discovery and access. Data discovery and metadata access (using ObsCoreDM) are defined here. The capabilities for drilling down to data files (and related resources) and services for remote access are defined elsewhere, but SIA also allows for dir...

  12. Say Yes to Education: Leading a Movement to Improve Access to Postsecondary Learning Opportunities in Cities Nationwide. Principles for Effective Education Grantmaking. Case Study No. 9

    Science.gov (United States)

    Maeroff, Gene I.

    2014-01-01

    What incentive could be stronger in a community than full-tuition college scholarships for all graduates of a public school system? Could this be an answer to the question of how the nation can support children growing up in poverty so that they may access middle-class opportunities? When George Weiss, a successful young money manager, pledged to…

  13. Underage College Students' Drinking Behavior, Access to Alcohol, and the Influence of Deterrence Policies: Findings from the Harvard School of Public Health College Alcohol Study.

    Science.gov (United States)

    Wechsler, Henry; Lee, Jae Eun; Nelson, Toben F.; Kuo, Meichun

    2002-01-01

    Used data from college alcohol surveys conducted between 1993-01 to compare underage students' and older students' drinking behaviors, access to alcohol, and exposure to prevention. While underage drinking rates decreased, binge drinking rates remained constant. Underage students' frequent binge drinking and related problems increased. College…

  14. Open For Business? An Historical, Comparative Study of Public Access to Information about Two Controversial Coastal Developments in North-East Scotland

    Science.gov (United States)

    Baxter, Graeme

    2014-01-01

    Introduction: This paper compares public access to information about two controversial coastal developments in North-east Scotland: the construction of a gas terminal by the British Gas Council and Total in the 1970s, and the current development of "the world's greatest golf course" by the tycoon Donald Trump. Method: Data has been…

  15. "There's no kind of respect here" A qualitative study of racism and access to maternal health care among Romani women in the Balkans

    NARCIS (Netherlands)

    Janevic, Teresa; Sripad, Pooja; Bradley, Elizabeth; Dimitrievska, Vera

    2011-01-01

    Introduction: Roma, the largest minority group in Europe, face widespread racism and health disadvantage. Using qualitative data from Serbia and Macedonia, our objective was to develop a conceptual framework showing how three levels of racism-personal, internalized, and institutional-affect access t

  16. Medication errors with the use of allopurinol and colchicine : A retrospective study of a national, anonymous Internet-accessible error reporting system

    NARCIS (Netherlands)

    Mikuls, TR; Curtis, [No Value; Allison, JJ; Hicks, RW; Saag, KG

    2006-01-01

    Objectives. To more closely assess medication errors in gout care, we examined data from a national, Internet-accessible error reporting program over a 5-year reporting period. Methods. We examined data from the MEDMARX (TM) database, covering the period from January 1, 1999 through December 31, 200

  17. Increasing equity of access to point-of-use water treatment products through social marketing and entrepreneurship: a case study in western Kenya.

    Science.gov (United States)

    Freeman, Matthew C; Quick, Robert E; Abbott, Daniel P; Ogutu, Paul; Rheingans, Richard

    2009-09-01

    Point-of-use water chlorination reduces diarrhoea risk by 25-85%. Social marketing has expanded access to inexpensive sodium hypochlorite for water treatment, at a cost of less than US$0.01 per day, in Kenya. To increase product access, women's groups in western Kenya were trained to educate neighbours and sell health products to generate income. We evaluated this programme's impact on equity of access to water treatment products in a cross-sectional survey. We surveyed 487 randomly selected households in eight communities served by the women's groups. Overall, 20% (range 5-39%) of households in eight communities purchased and used chlorine, as confirmed by residual chlorine observed in stored water. Multivariate models using illiteracy and the poorest socioeconomic status as a referent showed that persons with at least some primary education (OR 2.5, 95% CI 1.8, 3.5) or secondary education (OR 5.4, 95% CI 1.6, 17.5) and persons in the four wealthiest quintiles (OR 2.5, 95% CI 1.0, 6.0) were more likely to chlorinate stored water. While this implementation model was associated with good product penetration and use, barriers to access to inexpensive water treatment remained among the very poor and less educated.

  18. Access, ethics and piracy

    Directory of Open Access Journals (Sweden)

    Stuart Lawson

    2017-03-01

    Full Text Available Ownership of intellectual property rights for a large proportion of the scholarly record is held by publishers, so a majority of journal articles are behind paywalls and unavailable to most people. As a result some readers are encouraged to use pirate websites such as Sci-Hub to access them, a practice that is alternately regarded as criminal and unethical or as a justified act of civil disobedience. This article considers both the efficacy and ethics of piracy, placing ‘guerrilla open access’ within a longer history of piracy and access to knowledge. By doing so, it is shown that piracy is an inevitable part of the intellectual landscape that can render the current intellectual property regime irrelevant. If we wish to actively construct a true scholarly commons, open access emerges as a contender for moving beyond proprietary forms of commodifying scholarly knowledge towards the creation of an open scholarly communication system that is fit for purpose.

  19. Support open access publishing

    DEFF Research Database (Denmark)

    Ekstrøm, Jeannette

    2013-01-01

    Projektet Support Open Access Publishing har til mål at få opdateret Sherpa/Romeo databasen (www.sherpa.ac.uk/romeo) med fagligt relevante, danske tidsskrifter. Projektet skal endvidere undersøge mulighederne for at få udviklet en database, hvor forskere på tværs af relevante tidsskriftsinformati......Projektet Support Open Access Publishing har til mål at få opdateret Sherpa/Romeo databasen (www.sherpa.ac.uk/romeo) med fagligt relevante, danske tidsskrifter. Projektet skal endvidere undersøge mulighederne for at få udviklet en database, hvor forskere på tværs af relevante...... tidsskriftsinformationer (faglig disciplin, BFI niveau, Impact Factor, Open Access) vil kunne danne sig et hurtigt overblik, for derved at kunne træffe et kvalificeret valg om, hvor og hvordan man skal publicere sine forskningsresultater....

  20. Disruption - Access cards service

    CERN Multimedia

    2014-01-01

    We would like to inform you that between 10 November and 15 December 2014, the access cards service in Building 55 will be disrupted, as the GS Department has decided to improve the facilities for users of this building. During the work, you will find the registration, biometric registration and dosimeter exchange services on the second floor of Building 55 and the vehicle sticker service on the ground floor along with the access cards service. We thank you for your understanding and apologise for any inconvenience caused.

  1. Sprawl and Accessibility

    Directory of Open Access Journals (Sweden)

    Robert Bruegmann

    2008-07-01

    Full Text Available This essay argues that many of the assumptions that have been made about sprawl are misleading or just wrong. Nowhere has this been more the case than in debates about transportation and access. Because of this, it is not surprising that a good many of the policies advocated by proponents of Smart Growth would almost certainly lead to reduced mobility and impaired accessibility for a large part of the population. At very least, the debates over sprawl have pitted private vs. public transportation in a way that has contributed to serious underfunding of transportation infrastructure of all kinds.

  2. Empower: access to medicine - working towards early access.

    Science.gov (United States)

    Pearson, Jennifer Bryant; Turgoose, James; Hargrave, James

    2015-01-01

    Empower: Access to Medicine's contribution will document the founding of Empower: Access to Medicine and tactics used to create a lobbying campaign designed to facilitate the debate around barriers to medical innovation and patient access to medicines. The article will detail the evolution of the campaign's goals and the potential solutions to an expensive and slow system. Specifically the submission will look at the influence that Empower: Access to Medicine had on the Government's thinking and development of an early access scheme.

  3. Open access journals – what publishers offer, what researchers want

    CERN Document Server

    Dallmeier-Tiessen, Suenje; Goerner, Bettina; Hyppoelae, Jenni; Igo-Kemenes, Peter; Kahn, Deborah; Lamber, Simon; Lengenfelder, Anja; Leonard, Chris; Mele, Salvatore; Nowicka, Malgorzata; Polydoratou, Panayiota; Ross, David; Ruiz-Perez, Sergio; Schimmer, Ralf; Swaisland, Mark; van der Stelt, Wim

    2011-01-01

    The SOAP (Study of Open Access Publishing) project has analyzed the current supply and demand situation in the open access journal landscape. Starting from the Directory of Open Access Journals, several sources of data were considered, including journal websites and direct inquiries within the publishing industry to comprehensively map the present supply of online peer-reviewed OA journals. The demand for open access publishing is summarised, as assessed through a large-scale survey of researchers' opinions and attitudes. Some forty thousand answers were collected across disciplines and around the world, reflecting major support for the idea of open access, while highlighting drivers of and barriers to open access publishing.

  4. Easing access for lifelong learners

    DEFF Research Database (Denmark)

    Müller, Romina; Remdisch, Sabine; Köhler, Katharina

    2015-01-01

    Easing access to higher education (HE) for those engaging in lifelong learning has been a common policy objective across the European Union since the late 1990s. To reach this goal, the transition between vocational and academic routes must be simplified, but European countries are at different...... developmental stages. This article maps the development in Denmark, Finland, Germany and England using a case study approach deploying data triangulation from a national and institutional perspective. It explores the extent/commonality of structural factors for easing access for students engaging in lifelong...... learning. The cases are at widely different stages, but the following factors were considered essential in all countries for opening universities: the establishment of transition paths from secondary education and working life into HE and links between HE, businesses and adult education from a national...

  5. A large web-based observer reliability study of early ischaemic signs on computed tomography. The Acute Cerebral CT Evaluation of Stroke Study (ACCESS.

    Directory of Open Access Journals (Sweden)

    Joanna M Wardlaw

    Full Text Available BACKGROUND: Early signs of ischaemic stroke on computerised tomography (CT scanning are subtle but CT is the most widely available diagnostic test for stroke. Scoring methods that code for the extent of brain ischaemia may improve stroke diagnosis and quantification of the impact of ischaemia. METHODOLOGY AND PRINCIPAL FINDINGS: We showed CT scans from patients with acute ischaemic stroke (n = 32, with different patient characteristics and ischaemia signs to doctors in stroke-related specialties world-wide over the web. CT scans were shown twice, randomly and blindly. Observers entered their scan readings, including early ischaemic signs by three scoring methods, into the web database. We compared observers' scorings to a reference standard neuroradiologist using area under receiver operator characteristic curve (AUC analysis, Cronbach's alpha and logistic regression to determine the effect of scales, patient, scan and observer variables on detection of early ischaemic changes. Amongst 258 readers representing 33 nationalities and six specialties, the AUCs comparing readers with the reference standard detection of ischaemic signs were similar for all scales and both occasions. Being a neuroradiologist, slower scan reading, more pronounced ischaemic signs and later time to CT all improved detection of early ischaemic signs and agreement on the rating scales. Scan quality, stroke severity and number of years of training did not affect agreement. CONCLUSIONS: Large-scale observer reliability studies are possible using web-based tools and inform routine practice. Slower scan reading and use of CT infarct rating scales improve detection of acute ischaemic signs and should be encouraged to improve stroke diagnosis.

  6. A Large Web-Based Observer Reliability Study of Early Ischaemic Signs on Computed Tomography. The Acute Cerebral CT Evaluation of Stroke Study (ACCESS)

    Science.gov (United States)

    Wardlaw, Joanna M.; von Kummer, Rüdiger; Farrall, Andrew J.; Chappell, Francesca M.; Hill, Michael; Perry, David

    2010-01-01

    Background Early signs of ischaemic stroke on computerised tomography (CT) scanning are subtle but CT is the most widely available diagnostic test for stroke. Scoring methods that code for the extent of brain ischaemia may improve stroke diagnosis and quantification of the impact of ischaemia. Methodology and Principal Findings We showed CT scans from patients with acute ischaemic stroke (n = 32, with different patient characteristics and ischaemia signs) to doctors in stroke-related specialties world-wide over the web. CT scans were shown twice, randomly and blindly. Observers entered their scan readings, including early ischaemic signs by three scoring methods, into the web database. We compared observers' scorings to a reference standard neuroradiologist using area under receiver operator characteristic curve (AUC) analysis, Cronbach's alpha and logistic regression to determine the effect of scales, patient, scan and observer variables on detection of early ischaemic changes. Amongst 258 readers representing 33 nationalities and six specialties, the AUCs comparing readers with the reference standard detection of ischaemic signs were similar for all scales and both occasions. Being a neuroradiologist, slower scan reading, more pronounced ischaemic signs and later time to CT all improved detection of early ischaemic signs and agreement on the rating scales. Scan quality, stroke severity and number of years of training did not affect agreement. Conclusions Large-scale observer reliability studies are possible using web-based tools and inform routine practice. Slower scan reading and use of CT infarct rating scales improve detection of acute ischaemic signs and should be encouraged to improve stroke diagnosis. PMID:21209901

  7. Analysis of Open Access Landscape

    Institute of Scientific and Technical Information of China (English)

    Helen Doyle; Andy Gass; Debra Lappin; Rebecca Kennison

    2005-01-01

    This paper is created by bounding 5 editorials of Public Library of Science (PLoS ) which have written on various aspects of open access. It covers wide range topics of important open access issues, such as from paying for open access to copyright to open access as a public issue, which may be more or less of interest of our audience.

  8. Digital Scholarship and Open Access

    Science.gov (United States)

    Losoff, Barbara; Pence, Harry E.

    2010-01-01

    Open access publications provide scholars with unrestricted access to the "conversation" that is the basis for the advancement of knowledge. The large number of open access journals, archives, and depositories already in existence demonstrates the technical and economic viability of providing unrestricted access to the literature that is the…

  9. Karyotypic characterization of Capsicum sp. accessions

    OpenAIRE

    Willame Rodrigues do Nascimento Souza; Angela Celis de Almeida; Reginaldo de Carvalho; Regina Lúcia Ferreira; Ana Paula Peron

    2015-01-01

    This study aimed to determine the chromosome number and the karyotype of Capsicum annuum, Capsicum chinense, Capsicum frutencens and Capsicum baccatum accessions in the active Capsicum sp. genebank at the Federal University of Piauí (BGC-UFPI). These species have great economic importance throughout the world, and their cytogenetic characterization can inform taxonomy and lead to improvement in the genus. Karyotypes were obtained from the rootlet meristems of the studied accessions using...

  10. Open access and scholarly communication, part 4

    CERN Document Server

    Eden, Brad

    2009-01-01

    This fourth e-book on the subject of open access in the academic field includes a Latin American case study on open access penetration, a paper from Germany on the promotion of OA illustrated by a project at the University of Konstanz, and a case study on OA at Bioline International, a non-profit scholarly publications aggregator, distributor, publisher and publishing assistance service.

  11. Study on Constructing the Accessible Architectural Environment of Public Libraries%构建公共图书馆无障碍建筑环境研究

    Institute of Scientific and Technical Information of China (English)

    单瑞芳

    2011-01-01

    公共图书馆无障碍建筑环境应具备便捷性、安全性、实用性及可持续性。目前,美国、日本及我国台湾地区的公共图书馆无障碍建筑环境已经在政策、理论及实践方面取得了较好的成绩,而我国大陆地区的公共图书馆无障碍建筑环境的实践刚刚起步,仍需要进一步完善和更新。2011年文化部对公共图书馆提出“无障碍、零门槛进入”的要求,公共图书馆应该抓住时代赋予的新机遇,将无障碍建筑环境建设纳入图书馆立法体系,引入“多方参与”的设计理念,注重无障碍设计细节,并加入通用设计理念,以创建公共图书馆无障碍建筑新环境。%The accessible architectural environment of public libraries should have some characteristics of convenience, safety, practicality and sustainability. At present, the accessible architectural environment of public libraries in the United States, Japan and Taiwan have been made great achievements in policy, theory and practice, while the practice of the accessible architectual environment in our country starts just, it needs to be perfected and modified. In 2011, the Ministry of Culture puts forward requirements of "accessible and free service" for public libraries. Public libraries should seize the opportunity and put the establishment of accessible architectural environment into the library legislation system, introduce the design idea of multilateral participation, pay attention to detail designs, and introduce universal design idea, in order to realize the accessible architectural environment of public libraries.

  12. Closing the access barrier for effective anti-malarials in the private sector in rural Uganda: consortium for ACT private sector subsidy (CAPSS) pilot study

    Science.gov (United States)

    2012-01-01

    Background Artemisinin-based combination therapy (ACT), the treatment of choice for uncomplicated falciparum malaria, is unaffordable and generally inaccessible in the private sector, the first port of call for most malaria treatment across rural Africa. Between August 2007 and May 2010, the Uganda Ministry of Health and the Medicines for Malaria Venture conducted the Consortium for ACT Private Sector Subsidy (CAPSS) pilot study to test whether access to ACT in the private sector could be improved through the provision of a high level supply chain subsidy. Methods Four intervention districts were purposefully selected to receive branded subsidized medicines - “ACT with a leaf”, while the fifth district acted as the control. Baseline and evaluation outlet exit surveys and retail audits were conducted at licensed and unlicensed drug outlets in the intervention and control districts. A survey-adjusted, multivariate logistic regression model was used to analyse the intervention’s impact on: ACT uptake and price; purchase of ACT within 24 hours of symptom onset; ACT availability and displacement of sub-optimal anti-malarial. Results At baseline, ACT accounted for less than 1% of anti-malarials purchased from licensed drug shops for children less than five years old. However, at evaluation, “ACT with a leaf” accounted for 69% of anti-malarial purchased in the interventions districts. Purchase of ACT within 24 hours of symptom onset for children under five years rose from 0.8% at baseline to 26.2% (95% CI: 23.2-29.2%) at evaluation in the intervention districts. In the control district, it rose modestly from 1.8% to 5.6% (95% CI: 4.0-7.3%). The odds of purchasing ACT within 24 hours in the intervention districts compared to the control was 0.46 (95% CI: 0.08-2.68, p=0.4) at baseline and significant increased to 6.11 (95% CI: 4.32-8.62, p<0.0001) at evaluation. Children less than five years of age had “ACT with a leaf” purchased for them more often than those

  13. Closing the access barrier for effective anti-malarials in the private sector in rural Uganda: consortium for ACT private sector subsidy (CAPSS pilot study

    Directory of Open Access Journals (Sweden)

    Talisuna Ambrose O

    2012-10-01

    Full Text Available Abstract Background Artemisinin-based combination therapy (ACT, the treatment of choice for uncomplicated falciparum malaria, is unaffordable and generally inaccessible in the private sector, the first port of call for most malaria treatment across rural Africa. Between August 2007 and May 2010, the Uganda Ministry of Health and the Medicines for Malaria Venture conducted the Consortium for ACT Private Sector Subsidy (CAPSS pilot study to test whether access to ACT in the private sector could be improved through the provision of a high level supply chain subsidy. Methods Four intervention districts were purposefully selected to receive branded subsidized medicines - “ACT with a leaf”, while the fifth district acted as the control. Baseline and evaluation outlet exit surveys and retail audits were conducted at licensed and unlicensed drug outlets in the intervention and control districts. A survey-adjusted, multivariate logistic regression model was used to analyse the intervention’s impact on: ACT uptake and price; purchase of ACT within 24 hours of symptom onset; ACT availability and displacement of sub-optimal anti-malarial. Results At baseline, ACT accounted for less than 1% of anti-malarials purchased from licensed drug shops for children less than five years old. However, at evaluation, “ACT with a leaf” accounted for 69% of anti-malarial purchased in the interventions districts. Purchase of ACT within 24 hours of symptom onset for children under five years rose from 0.8% at baseline to 26.2% (95% CI: 23.2-29.2% at evaluation in the intervention districts. In the control district, it rose modestly from 1.8% to 5.6% (95% CI: 4.0-7.3%. The odds of purchasing ACT within 24 hours in the intervention districts compared to the control was 0.46 (95% CI: 0.08-2.68, p=0.4 at baseline and significant increased to 6.11 (95% CI: 4.32-8.62, p Conclusions These data demonstrate that a supply-side subsidy and an intensive communications campaign

  14. Access to effective healthcare

    DEFF Research Database (Denmark)

    Høy, Bente

    2015-01-01

    Access to effective healthcare is in particular challenging for vulnerable and socially disadvantaged patients. Patients with chronic conditions are over-represented in these lower socioeconomic (LSES) groups. No generic review integrating the evidence on Self-Management support interventions in ...

  15. Serving up Access

    Science.gov (United States)

    Rich, Sarah

    2011-01-01

    When low-income students returned to Chicago public schools this fall, many had better access to technology, thanks to a public-private partnership. Chicago families with children enrolled in the National School Lunch Program are eligible for subsidized computers and Internet connections through an agreement between the city and telecom giant…

  16. Efficient Distributed Medium Access

    CERN Document Server

    Shah, Devavrat; Tetali, Prasad

    2011-01-01

    Consider a wireless network of n nodes represented by a graph G=(V, E) where an edge (i,j) models the fact that transmissions of i and j interfere with each other, i.e. simultaneous transmissions of i and j become unsuccessful. Hence it is required that at each time instance a set of non-interfering nodes (corresponding to an independent set in G) access the wireless medium. To utilize wireless resources efficiently, it is required to arbitrate the access of medium among interfering nodes properly. Moreover, to be of practical use, such a mechanism is required to be totally distributed as well as simple. As the main result of this paper, we provide such a medium access algorithm. It is randomized, totally distributed and simple: each node attempts to access medium at each time with probability that is a function of its local information. We establish efficiency of the algorithm by showing that the corresponding network Markov chain is positive recurrent as long as the demand imposed on the network can be supp...

  17. Multiple Access Communications

    DEFF Research Database (Denmark)

    This book constitutes the proceedings of the 9th International Workshop on Multiple Access Communications, MACOM 2016, held in Aalborg, Denmark, in November 2016. The 10 full papers presented in this volume were carefully reviewed and selected from 12 submissions. They were organized in topical...

  18. Accessibility Standards, Illustrated.

    Science.gov (United States)

    Jones, Michael A.

    The book sets forth Illinois environmental accessibility standards for disabled persons based on observation and interview data. Photographs, drawings, and detailed floor plans are included in sections dealing with human data (including space requirements for maneuvering wheelchairs, color blindness, incontinence, and severe auditory or visual…

  19. Unique Access to Learning

    Science.gov (United States)

    Goble, Don

    2009-01-01

    This article describes the many learning opportunities that broadcast technology students at Ladue Horton Watkins High School in St. Louis, Missouri, experience because of their unique access to technology and methods of learning. Through scaffolding, stepladder techniques, and trial by fire, students learn to produce multiple television programs,…

  20. Kinds of Access

    DEFF Research Database (Denmark)

    Overgaard, Morten; Sandberg, Kristian

    2014-01-01

    that there is not only a theoretical, but also an empirical difference between different methods of reporting. We hypothesise that differences in the sensitivity of different scales may reveal that different types of access are used to issue direct reports about experiences and metacognitive reports about...

  1. Kinds of access

    DEFF Research Database (Denmark)

    Overgaard, Morten; Sandberg, Kristian

    2012-01-01

    that there is not only a theoretical, but also an empirical difference between different methods of reporting. We hypothesize that differences in the sensitivity of different scales may reveal that different types of access are used to issue direct reports about experiences and metacognitive reports about...

  2. Access and Fishing Activities

    DEFF Research Database (Denmark)

    Høst, Jeppe Engset

    2015-01-01

    In this chapter, I look at the implications of transferable quotas on the organization of production; that is, how fishing activities are structured around access to the individual and transferable quotas and how, in turn, the quotas structure the production. Therefore, this chapter will give...

  3. ACCESS Project: Final Report

    Energy Technology Data Exchange (ETDEWEB)

    Weller, Heiko [Robert Bosch, LLC, Farmington Hills, MI (United States)

    2015-04-01

    The ACCESS project addressed the development, testing, and demonstration of the proposed advanced technologies and the associated emission and fuel economy improvement at an engine dynamometer and on a full-scale vehicle. Improve fuel economy by 25% with minimum performance penalties Achieve SULEV level emissions with gasoline Demonstrate multi-mode combustion engine management system

  4. APS and Open Access

    Science.gov (United States)

    2011-03-01

    The movement toward Open Access continues to gain momentum. A brief review of APS efforts in this area will be presented by APS Editor in Chief, Gene Sprouse. Editors from Physical Review A, B, E, Focus, Letters, and X, Reviews of Modern Physics, and Physics will address your questions about publishing in this evolving environment.

  5. Current use of ultrasound for central vascular access in children and infants in the Nordic countries--a cross-sectional study

    DEFF Research Database (Denmark)

    Olsen, Thomas C Risom; Rimstad, Ivan Jonassen; Tarpgaard, Mona;

    2015-01-01

    widespread across the Nordic countries. Close to 80% of respondents were using it "almost always" or "frequently" across all paediatric age groups for internal jugular vein cannulation. US was least frequently used when catheterizing the subclavian vein. The two most common reasons given when not using US....... METHODS: A cross-sectional survey using an online questionnaire was distributed to one anaesthesiologist at every hospital in the Nordic countries; a total of 177 anaesthesiologists were contacted from July till August 2012. RESULTS: The use of US for placing central venous catheters (CVCs) seems......PURPOSE: The use of ultrasound (US) guidance for central vascular access in children has been advocated as a safer approach compared to traditional landmark techniques. We therefore collected data on the current use of US for central vascular access in children and infants in the Nordic countries...

  6. Fixed Access Network Sharing

    Science.gov (United States)

    Cornaglia, Bruno; Young, Gavin; Marchetta, Antonio

    2015-12-01

    Fixed broadband network deployments are moving inexorably to the use of Next Generation Access (NGA) technologies and architectures. These NGA deployments involve building fiber infrastructure increasingly closer to the customer in order to increase the proportion of fiber on the customer's access connection (Fibre-To-The-Home/Building/Door/Cabinet… i.e. FTTx). This increases the speed of services that can be sold and will be increasingly required to meet the demands of new generations of video services as we evolve from HDTV to "Ultra-HD TV" with 4k and 8k lines of video resolution. However, building fiber access networks is a costly endeavor. It requires significant capital in order to cover any significant geographic coverage. Hence many companies are forming partnerships and joint-ventures in order to share the NGA network construction costs. One form of such a partnership involves two companies agreeing to each build to cover a certain geographic area and then "cross-selling" NGA products to each other in order to access customers within their partner's footprint (NGA coverage area). This is tantamount to a bi-lateral wholesale partnership. The concept of Fixed Access Network Sharing (FANS) is to address the possibility of sharing infrastructure with a high degree of flexibility for all network operators involved. By providing greater configuration control over the NGA network infrastructure, the service provider has a greater ability to define the network and hence to define their product capabilities at the active layer. This gives the service provider partners greater product development autonomy plus the ability to differentiate from each other at the active network layer.

  7. "There's no kind of respect here" A qualitative study of racism and access to maternal health care among Romani women in the Balkans

    Directory of Open Access Journals (Sweden)

    Janevic Teresa

    2011-11-01

    Full Text Available Abstract Introduction Roma, the largest minority group in Europe, face widespread racism and health disadvantage. Using qualitative data from Serbia and Macedonia, our objective was to develop a conceptual framework showing how three levels of racism--personal, internalized, and institutional--affect access to maternal health care among Romani women. Methods Eight focus groups of Romani women aged 14-44 (n = 71, as well as in-depth semi-structured interviews with gynecologists (n = 8 and key informants from NGOs and state institutions (n = 11 were conducted on maternal health care seeking, experiences during care, and perceived health care discrimination. Transcripts were coded, and analyzed using a grounded theory approach. Themes were categorized into domains. Results Twenty-two emergent themes identified barriers that reflected how racism affects access to maternal health care. The domains into which the themes were classified were perceptions and interactions with health system, psychological factors, social environment and resources, lack of health system accountability, financial needs, and exclusion from education. Conclusions The experiences of Romani women demonstrate psychosocial and structural pathways by which racism and discrimination affect access to prenatal and maternity care. Interventions to address maternal health inequalities should target barriers within all three levels of racism.

  8. Predatory Open Access in Rehabilitation.

    Science.gov (United States)

    Manca, Andrea; Martinez, Gianluca; Cugusi, Lucia; Dragone, Daniele; Mercuro, Giuseppe; Deriu, Franca

    2017-01-20

    Increasingly scholars and researchers are being solicited by predatory open access journals seeking manuscript submissions and abusing the author-pays model by charging authors with publishing fees without any or proper peer review. Such questionable editorial practices are threatening the reputation and credibility of scholarly publishing. To date, no investigation has been conducted on this phenomenon in the field of rehabilitation. This study attempts to identify specific predatory journals operating in this field to quantify the phenomenon and its geographic distribution. Beall's List has been used to this end which, although not perfect, is a comprehensive and up-to-date report of predatory publishers. Of the 1113 publishers on the list, 59 journals were identified, for a total of 5610 published articles. The median number of articles published by each journal was 21, and the median amount of article processing charges was $499. Only 1 out of 59 journals was included in the Directory of Open Access Journals, whereas 7 (12%) were indexed by PubMed. Most of the publishers were based in India (36%) followed by the United States (25%) and Pakistan (5%), and 25% were without a verifiable address. The data indicate that the threat of predatory publishing in rehabilitation is real. Physiatrists, physiotherapists, researchers, and academics operating in this field are advised to use the tools available to recognize predatory practices before considering publishing in open access journals.

  9. Case study: Gold road to Open Access in research publishing domain - experience of Institute of Chemical Technology Prague from the pilot project

    Directory of Open Access Journals (Sweden)

    Jirát Jiří

    2014-07-01

    Full Text Available Elektronické informační zdroje (e-časopisy, e-knihy, databáze patří mezi základní nepostradatelné pilíře výzkumu a vývoje, ČR za nř plánuje vy-dat v letech 2013-2017/8 přes 3 mld. Kč. Současně však celosvětově do-chází k velké diskusi a posunům v oblasti odborného publikování směrem k tzv. otevřenému přístupu (Open Access. Zejména Evropská unie v následujících letech silně podpoří Open Access v oblasti odborného publikování (finanční podporou i donucením v rámci pravidel nových programů. Jaké praktické důsledky to bude mít pro výzkumné institu-ce v oblasti chemie, je ukázáno na příkladu pilotního projektu VŠCHT Praha. Analýza vyhodnocuje, jak jsou jednotlivé možnosti Open Access blízké zvyklostem autorů v oblasti chemie. Vyplývá z ní, že autoři zatím jednoznačně preferují tzv. zlatou cestu (gold Open Access. Výsledky pilotního projektu naznačují vhodnost centralizace podpory zlaté cesty Open Access na národní úrovni.

  10. Educational Quality, Access, and Tuition Policy at State Universities.

    Science.gov (United States)

    Seneca, Joseph J.; Taussig, Michael K.

    1987-01-01

    A quantitative study of the relationship between educational quality, access, and tuition rates at state universities suggests that these institutions face a trade-off between the goals of improving educational program quality and providing greater access, but that increases in student financial aid can improve access. (MSE)

  11. Toward high-speed access technologies: results from MUSE

    Science.gov (United States)

    Wellen, Jeroen; Smets, Rob; Hellenthal, Wim; Lepley, Jason; Tsalamanis, Ioannis; Walker, Stuart; Ng'oma, Anthony; Rijckenberg, Gert-Jan; Koonen, Ton; Habel, Kai; Langer, Klaus-Dieter

    2006-10-01

    The European MUSE project, which aims to enable "MUlti Service and access Everywhere", studies architectures, technologies and business scenarios facilitating the deployment of new Broadband Access Networks and Services. This paper gives an overview and particularly discusses results of some of the high-speed access technologies that are developed.

  12. RESISTENCIA MECÁNICA EVALUADA EN EL ENSAYO MARSHALL DE MEZCLAS DENSAS EN CALIENTE ELABORADAS CON ASFALTOS MODIFICADOS CON DESECHOS DE POLICLORURO DE VINILO (PVC, POLIETILENO DE ALTA DENSIDAD (PEAD Y POLIESTIRENO (PS MECHANICAL RESISTANCE OF HOT THICK MIXTURES MADE WITH ASPHALT MODIFIED WITH POLYVINYL CHLORIDE, POLYCLORURE (PVC WASTES, HIGH DENSITY POLYETHYLENE (PEAD, AND POLYSTYRENE (PS EVALUATED IN MARSHALL ASSAY

    Directory of Open Access Journals (Sweden)

    Hugo Alexánder Rondón Quintana

    2007-07-01

    Full Text Available El presente trabajo buscó evaluar en laboratorio el cambio en la resistencia mecánica que experimentan mezclas asfálticas densas en caliente cuando se adicionan, por vía húmeda, al cemento asfáltico aditivos poliméricos producto de desechos industriales del tipo plastómero (policloruro de vinilo, polietileno de alta densidad y poliestireno. Para tal fin se empleó el ensayo Marshall. De los resultados obtenidos se concluye que la resistencia mecánica de mezclas asfálticas modificadas con desechos del tipo plastómero es mayor en comparación con las convencionales (mezclas que emplean asfaltos sin ningún aditivo.The main objective of this research Project was to evaluate in a laboratory the change in mechanical strength that dense hot asphalt mixtures go through when waste polymeric additives of plastomeric type (polyvinyl chloride, high density polyethylene and polystyrene are added to asphalt cement, by 'wet way'. This change was evaluated using Marshall Test. The general conclusion of the experimental results was that modified hot asphalt mixtures present better mechanical behavior than conventional mixtures (mixtures which use asphalt without additives.

  13. Evaluación económica de la aplicación de los procesos tecnológicos de deshidratación Osmótica y por Flujo de Aire Caliente de la piña (Ananas Comosus variedad Cayena lisa

    Directory of Open Access Journals (Sweden)

    Annia García Pereira

    2013-01-01

    Full Text Available La aplicación de métodos de conservación se reconoce como una variante efectiva para incrementar el aprovechamiento y mejor utilización de las producciones agrícolas. El presente trabajo tiene como objetivo evaluar a través de indicadores económicos la aplicación de la deshidratación Osmótica y por Flujo de Aire Caliente de la Piña (Ananas Comosus, variedad Cayena lisa. Durante el análisis se utiliza la metodología propuesta en la NC 34-38:2001 con algunas modificaciones. Para el procesamiento de los datos se utiliza la herramienta Excel de Microsoft office 7. Como resultado se obtuvo que los gastos totales del proceso ascienden a un monto de 49.07 pesos para la DO y 15.03 pesos para la DAC para procesar 550 g en cada proceso.

  14. 中越服装服饰加工贸易出口竞争力比较研究%A Comparative Study on the Competitiveness of Apparel/Clothing/Access Processing-Trade Products Between Vietnam and China

    Institute of Scientific and Technical Information of China (English)

    艾民; 薛晨菁

    2013-01-01

      Based on the revealed comparative advantage (RCA) of apparel/clothing /access processing-trade products between Vietnam and China ,we could do the competitive study about the competitiveness of ap-parel/clothing /access processing-trade industry between of them . According to the categorical data in SITC Rev .4 from 1995 - 2010 of the two countries ,we do classified calculations about the apparel /cloth-ing/access processing-trade products .Then we analyze the comparative advantage and disadvantage of dif -ferent kinds of apparel/clothing /access processing-trade products between China and Vietnam .In addition , we forecast the RCA of the Chinese and Vietnam Processing Trade Products .Finally ,we have drawn a conclusion that Vietnam has become a strong competitor in the field of apparel /clothing /access processing-trade products .%  文章采用显性比较优势指数(RCA)对中越两国服装服饰业加工贸易出口竞争力进行对比,并依据中越两国1995—2010年分类数据,对主要服装产品贸易竞争力进行分类计算,进而分析中国与越南不同类型服装服饰加工贸易出口产品的比较优势及劣势,通过预测未来五年中越两国服装服饰类加工贸易出口产品的RCA ,得出越南已成为我国服装服饰加工贸易出口强劲竞争对手的结论。

  15. Low-cost, open access flood inundation modelling with sparse data: A case study of the Lower Damodar River Basin, India

    Science.gov (United States)

    Sanyal, J.; Carbonneau, P.

    2012-04-01

    In developed nations, flood monitoring and management benefits from a range of high-cost modern data and methods such as high resolution terrain data and digital elevation models, cloud penetrating radar data which defines flood extents and advanced computer modelling software. However, in developing countries, such resources are rarely available. The situation is further compounded by the fact that developing countries often have higher population densities which are even more vulnerable to flood hazards. This paper addresses these issues and presents a methodology for flood modelling which is accessible within the resource constraints which are typical in developing countries. A 20 Km flood prone reach of the lower Damodar River Basin in Northern India has been selected as the study area. This area has been subjected to inundation 4 times during the last 6 years due to water released from a network of upstream reservoirs during intense monsoon rainfall events. Within the study site, topographic data from three sources was available. First, we used SRTM data. Second, 40 cross-sections were surveyed with differential GPS and a handheld depth sounder. These data were corrected and their datum adjusted to that of the SRTM DEM with the precise point positioning (PPP) system freely available from Natural Resources Canada. Third, low-cost Cartosat-1 stereo images were used to produce a DEM with Leica Photogrammetry Suite. The elevation points derived from Cartosat-1 images were then manually edited in a 3D stereo viewing environment to represent the narrow but hydraulically significant features, such as the embankments, roads, smaller depressions and merged with the surveyed points for the channel. The SRTM data over the featureless farmland was also made bare-earth and merged with the rest of the mass points to create a hybrid point cloud. The RMSE of this hybrid terrain data was found to be 1.1 m as compared to 2.4 m for the original SRTM DEM. TELEMAC2D, an open

  16. Analysing Access Control Specifications

    DEFF Research Database (Denmark)

    Probst, Christian W.; Hansen, René Rydhof

    2009-01-01

    . Recent events have revealed intimate knowledge of surveillance and control systems on the side of the attacker, making it often impossible to deduce the identity of an inside attacker from logged data. In this work we present an approach that analyses the access control configuration to identify the set......When prosecuting crimes, the main question to answer is often who had a motive and the possibility to commit the crime. When investigating cyber crimes, the question of possibility is often hard to answer, as in a networked system almost any location can be accessed from almost anywhere. The most...... of credentials needed to reach a certain location in a system. This knowledge allows to identify a set of (inside) actors who have the possibility to commit an insider attack at that location. This has immediate applications in analysing log files, but also nontechnical applications such as identifying possible...

  17. Internet access to ionosondes

    Science.gov (United States)

    Galkin, I. A.; Kitrosser, D. F.; Kecic, Z.; Reinisch, B. W.

    1999-01-01

    Connecting ionosondes to the Internet gives easy access to real-time information on ionospheric conditions. Some of the ionosonde sites provide just the ionogram displays, others give in addition the scaled ionospheric characteristics directly usable for frequency management and HF channel assessment. Some sounders also store days or months of station data, which makes it possible remotely to evaluate the time history of geophysical events. The Internet link is also a convenient means for remote system maintenance and control. The paper addresses various aspects of the Internet ionosonde scenario, including data base support, WWW publishing, user interface, security, and data format. A list of Internet accessible ionosonde stations is provided with a brief description.

  18. Accessing offshoring advantages

    DEFF Research Database (Denmark)

    Mykhaylenko, Alona; Motika, Agnes; Wæhrens, Brian Vejrum

    2015-01-01

    Purpose – The purpose of this paper is to advance the understanding of factors that affect offshoring performance results. To do so, this paper focuses on the access to location-specific advantages, rather than solely on the properties of the offshoring company, its strategy or environment....... Assuming that different levels of synergy may exist between particular offshoring strategic decisions (choosing offshore outsourcing or captive offshoring and the type of function) and different offshoring advantages, this work advocates that the actual fact of realization of certain offshoring advantages...... (getting or not getting access to them) is a more reliable predictor of offshoring success. Design/methodology/approach – Aset of hypotheses derived from the extant literature is tested on the data from a quantitative survey of 1,143 Scandinavian firms. Findings – The paper demonstrates that different...

  19. Access to Research Inputs

    DEFF Research Database (Denmark)

    Czarnitzki, Dirk; Grimpe, Christoph; Pellens, Maikel

    The viability of modern open science norms and practices depend on public disclosure of new knowledge, methods, and materials. However, increasing industry funding of research can restrict the dissemination of results and materials. We show, through a survey sample of 837 German scientists in life...... sciences, natural sciences, engineering, and social sciences, that scientists who receive industry funding are twice as likely to deny requests for research inputs as those who do not. Receiving external funding in general does not affect denying others access. Scientists who receive external funding...... of any kind are, however, 50% more likely to be denied access to research materials by others, but this is not affected by being funded specifically by industry....

  20. Access to Research Inputs

    DEFF Research Database (Denmark)

    Czarnitzki, Dirk; Grimpe, Christoph; Pellens, Maikel

    2015-01-01

    The viability of modern open science norms and practices depends on public disclosure of new knowledge, methods, and materials. However, increasing industry funding of research can restrict the dissemination of results and materials. We show, through a survey sample of 837 German scientists in life...... sciences, natural sciences, engineering, and social sciences, that scientists who receive industry funding are twice as likely to deny requests for research inputs as those who do not. Receiving external funding in general does not affect denying others access. Scientists who receive external funding...... of any kind are, however, 50 % more likely to be denied access to research materials by others, but this is not affected by being funded specifically by industry...