Science.gov

Sample records for accessible resource base

  1. Joint Access Control Based on Access Ratio and Resource Utilization for High-Speed Railway Communications

    NASA Astrophysics Data System (ADS)

    Zhou, Yuzhe; Ai, Bo

    2015-05-01

    The fast development of high-speed rails makes people's life more and more convenient. However, provisioning of quality of service of multimedia applications for users on the high-speed train is a critical task for wireless communications. Therefore, new solutions are desirable to be found to address this kind of problem. Current researches mainly focus on providing seamless broadband wireless access for high-speed mobile terminals. In this paper, an algorithm to calculate the optimal resource reservation fraction of handovers is proposed. A joint access control scheme for high-speed railway communication handover scenario is proposed. Metrics of access ratio and resource utilization ratio are considered jointly in the analysis and the performance evaluation. Simulation results show that the proposed algorithm and the scheme improve quality of service compared with other conventional schemes.

  2. Availability and accessibility of evidence-based information resources provided by medical libraries in Australia.

    PubMed

    Ritchie, A; Sowter, B

    2000-01-01

    This article reports on the results of an exploratory survey of the availability and accessibility of evidence-based information resources provided by medical libraries in Australia. Although barriers impede access to evidence-based information for hospital clinicians, the survey revealed that Medline and Cinahl are available in over 90% of facilities. In most cases they are widely accessible via internal networks and the Internet. The Cochrane Library is available in 69% of cases. The Internet is widely accessible and most libraries provide access to some full-text, electronic journals. Strategies for overcoming restrictions and integrating information resources with clinical workflow are being pursued. State, regional and national public and private consortia are developing agreements utilising on-line technology. These could produce cost savings and more equitable access to a greater range of evidence-based resources.

  3. Apparatus, method and system to control accessibility of platform resources based on an integrity level

    DOEpatents

    Jenkins, Chris; Pierson, Lyndon G.

    2016-10-25

    Techniques and mechanism to selectively provide resource access to a functional domain of a platform. In an embodiment, the platform includes both a report domain to monitor the functional domain and a policy domain to identify, based on such monitoring, a transition of the functional domain from a first integrity level to a second integrity level. In response to a change in integrity level, the policy domain may configure the enforcement domain to enforce against the functional domain one or more resource accessibility rules corresponding to the second integrity level. In another embodiment, the policy domain automatically initiates operations in aid of transitioning the platform from the second integrity level to a higher integrity level.

  4. Managing Information Resources for Accessibility.

    ERIC Educational Resources Information Center

    General Services Administration, Washington, DC. Clearinghouse on Computer Accommodation.

    This handbook presents guidance for federal managers and other personnel who are unfamiliar with the policy and practice of information accessibility to accommodate users with disabilities and to provide for their effective access to information resources. It addresses federal requirements for accessibility, adopting accessibility as a sound…

  5. Organising access to Evidence-Based Medicine resources on the Web.

    PubMed

    Delvenne, Catherine; Pasleau, Françoise

    2003-05-01

    The continuing education is a challenge for health care professionals, considering the growing amount and variable quality of information in this field. In this context, we developed a method allowing clinicians to have a centralised access to the best current medical evidence supporting medical decision-making. Relevant data has been gathered according to the rules stated for Evidence-Based Medicine (EBM) and organised in a free-of-charge Web site, created by using common software applications. The general aim of our study was to encourage individual practice of EBM by providing tutorials as well as a selection of free access tools for searching medical information on the Web. In addition to the education part, we provided clinicians, through a Web interface, with up-to-date, accurate and quality data obtained from heterogeneous sources and presented in a full text format when available. The developed methodology has been applied to human prostate cancer. URL address: http://www.ebm.lib.ulg.ac.be/prostate/index.htm.

  6. Methodology of determining the uncertainty in the accessible geothermal resource base of identified hydrothermal convection systems

    USGS Publications Warehouse

    Nathenson, Manuel

    1978-01-01

    In order to quantify the uncertainty of estimates of the geothermal resource base in identified hydrothermal convection systems, a methodology is presented for combining estimates with uncertainties for temperature, area, and thickness of a geothermal reservoir into an estimate of the stored energy with uncertainty. Probability density functions for temperature, area, and thickness are assumed to be triangular in form. In order to calculate the probability distribution function for the stored energy in a single system or in many systems, a computer program for aggregating the input distribution functions using the Monte-Carlo method has been developed. To calculate the probability distribution of stored energy in a single system, an analytical expression is also obtained that is useful for calibrating the Monte Carlo approximation. For the probability distributions of stored energy in a single and in many systems, the central limit approximation is shown to give results ranging from good to poor.

  7. Language Access Toolkit: An Organizing and Advocacy Resource for Community-Based Youth Programs

    ERIC Educational Resources Information Center

    Beyersdorf, Mark Ro

    2013-01-01

    Asian American Legal Defense and Education Fund (AALDEF) developed this language access toolkit to share the expertise and experiences of National Asian American Education Advocates Network (NAAEA) member organizations with other community organizations interested in developing language access campaigns. This toolkit includes an overview of…

  8. Using Mobile Technologies to Access Evidence-Based Resources: A Rural Health Clinic Experience.

    PubMed

    Carter-Templeton, Heather D; Wu, Lin

    2015-09-01

    This study describes the feasibility and usability of a mobile device and selected electronic evidence-based information programs used to support clinical decision making in a rural health clinic. The study focused on nurses' perceptions on when they needed more information, where they sought information, what made them feel comfortable about the information they found, and rules and guidelines they used to determine if the information should be used in patient care. ATLAS.ti, the qualitative analysis software, was used to assist with qualitative data analysis and management. PMID:26333613

  9. Accessibility and Use of Web-Based Electronic Resources by Physicians in a Psychiatric Institution in Nigeria

    ERIC Educational Resources Information Center

    Oduwole, Adebambo Adewale; Oyewumi, Olatundun

    2010-01-01

    Purpose: This study aims to examine the accessibility and use of web-based electronic databases on the Health InterNetwork Access to Research Initiative (HINARI) portal by physicians in the Neuropsychiatric Hospital, Aro--a psychiatry health institution in Nigeria. Design/methodology/approach: Collection of data was through the use of a three-part…

  10. Facilitating Full-text Access to Biomedical Literature Using Open Access Resources.

    PubMed

    Kang, Hongyu; Hou, Zhen; Li, Jiao

    2015-01-01

    Open access (OA) resources and local libraries often have their own literature databases, especially in the field of biomedicine. We have developed a method of linking a local library to a biomedical OA resource facilitating researchers' full-text article access. The method uses a model based on vector space to measure similarities between two articles in local library and OA resources. The method achieved an F-score of 99.61%. This method of article linkage and mapping between local library and OA resources is available for use. Through this work, we have improved the full-text access of the biomedical OA resources.

  11. Can free open access resources strengthen knowledge-based emerging public health priorities, policies and programs in Africa?

    PubMed Central

    Tambo, Ernest; Madjou, Ghislaine; Khayeka-Wandabwa, Christopher; Tekwu, Emmanuel N.; Olalubi, Oluwasogo A.; Midzi, Nicolas; Bengyella, Louis; Adedeji, Ahmed A.; Ngogang, Jeanne Y.

    2016-01-01

    Tackling emerging epidemics and infectious diseases burden in Africa requires increasing unrestricted open access and free use or reuse of regional and global policies reforms as well as timely communication capabilities and strategies. Promoting, scaling up data and information sharing between African researchers and international partners are of vital importance in accelerating open access at no cost. Free Open Access (FOA) health data and information acceptability, uptake tactics and sustainable mechanisms are urgently needed. These are critical in establishing real time and effective knowledge or evidence-based translation, proven and validated approaches, strategies and tools to strengthen and revamp health systems.  As such, early and timely access to needed emerging public health information is meant to be instrumental and valuable for policy-makers, implementers, care providers, researchers, health-related institutions and stakeholders including populations when guiding health financing, and planning contextual programs. PMID:27508058

  12. Providing Access to Electronic Information Resources in Further Education

    ERIC Educational Resources Information Center

    Banwell, Linda; Ray, Kathryn; Coulson, Graham; Urquhart, Christine; Lonsdale, Ray; Armstrong, Chris; Thomas, Rhian; Spink, Sin; Yeoman, Alison; Fenton, Roger; Rowley, Jennifer

    2004-01-01

    This article aims to provide a baseline for future studies on the provision and support for the use of digital or electronic information services (EIS) in further education. The analysis presented is based on a multi-level model of access, which encompasses access to and availability of information and communication technology (ICT) resources,…

  13. Equal Access Initiative HIV/AIDS Information Resources from NLM

    SciTech Connect

    Templin-Branner W. and N. Dancy

    2010-09-11

    The Equal Access Initiative: HIV/AIDS Information Resources from the National Library of Medicine training is designed specifically for the National Minority AIDS Council 2010 Equal Access Initiative (EAI) Computer Grants Program awardees to provide valuable health information resources from the National Library of Medicine and other reliable sources to increase awareness of the wealth of treatment information and educational materials that are available on the Internet and to improve prevention and treatment education for their clients. These resources will also meet the needs of community-based

  14. Contextualizing immigrant access to health resources.

    PubMed

    Yang, Joshua S

    2010-06-01

    A vast majority of our understanding of immigrant health centers around traits of individuals and groups. While useful, current approaches to research on immigrant health decontextualize the experience of immigrants in the United States. This paper uses a historical case study of the Chinese community in San Francisco to develop a contextual framework to understand the levels of influence that impact the availability of health resources in immigrant communities. International, transnational, transcommunity, and enclave contexts have shaped health care access for Chinese immigrants in San Francisco. The conceptual framework provides a basis for future research, programmatic, and policy work that integrates individual and contextual factors in assessing and improving immigrant access to health resources.

  15. Microsatellite markers discriminating accessions within collections of plant genetic resources.

    PubMed

    Kraic, Ján; Gregová, Edita; Jomová, Klaudia; Hudcovicová, Martina

    2002-01-01

    The reliability of microsatellite analyses for discriminating between plant accessions maintained in collections of genetic resources was tested for 53 accessions of barley, 65 of soybean, 49 of chickpea, and 19 of alfalfa. The specific primer pairs used in this study were based on microsatellite DNA sequences surrounded by perfect dinucleotide and imperfect trinucleotide tandem repeat units. The evaluated polymorphic information content, diversity index, and probabilities of identity indicate that there is value in the application of SSR analyses in barley, soybean, and chickpea genetic resource management. Variation between alfalfa genotypes was not revealed at the five analyzed microsatellite loci. PMID:12378234

  16. Electronic Resources: Access and Usage at Ashesi University College

    ERIC Educational Resources Information Center

    Dadzie, Perpetua S.

    2005-01-01

    Purpose: Sets out to investigate the use of electronic resources by students and faculty of Ashesi University, Ghana, in order to determine the level of use, the type of information accessed and the effectiveness of the library's communication tools for information research. Design/methodology/approach: A questionnaire-based survey was utilized.…

  17. The CREATE Network (Computer Resource Educational Access in Tennessee Education).

    ERIC Educational Resources Information Center

    Moon, Fletcher F.

    The CREATE Network (Computer Resource Educational Access in Tennessee Education) brought together library professionals from Tennessee's seven historically black colleges and universities (HBCUs) for purposes of training and implementation of library applications of computer-based information technology. Annual training seminars were held at…

  18. Dynamic resource allocation in hybrid access femtocell network.

    PubMed

    Ahmed, Afaz Uddin; Islam, Mohammad Tariqul; Ismail, Mahamod; Ghanbarisabagh, Mohammad

    2014-01-01

    Intercell interference is one of the most challenging issues in femtocell deployment under the coverage of existing macrocell. Allocation of resources between femtocell and macrocell is essential to counter the effects of interference in dense femtocell networks. Advances in resource management strategies have improved the control mechanism for interference reduction at lower node density, but most of them are ineffective at higher node density. In this paper, a dynamic resource allocation management algorithm (DRAMA) for spectrum shared hybrid access OFDMA femtocell network is proposed. To reduce the macro-femto-tier interference and to improve the quality of service, the proposed algorithm features a dynamic resource allocation scheme by controlling them both centrally and locally. The proposed scheme focuses on Femtocell Access Point (FAP) owners' satisfaction and allows maximum utilization of available resources based on congestion in the network. A simulation environment is developed to study the quantitative performance of DRAMA in hybrid access-control femtocell network and compare it to closed and open access mechanisms. The performance analysis shows that higher number of random users gets connected to the FAP without compromising FAP owners' satisfaction allowing the macrocell to offload a large number of users in a dense heterogeneous network. PMID:24782662

  19. Improve the ranking algorithm of the GEO Discovery and Access Broker through resource accessibility assessment

    NASA Astrophysics Data System (ADS)

    Santoro, M.; Sorichetta, A.; Roglia, E.; Quaglia, A.; Craglia, M.; Nativi, S.

    2013-12-01

    The vision of the Global Earth Observation System of Systems (GEOSS) is the achievement of societal benefits through voluntary contribution and sharing of resources to better understand the relationships between the society and the environment where we live. To address complex issues in the field of geosciences a combined effort from many disciplines, ranging from physical to social sciences and including humanities, is required. The introduction of the Discovery and Access Broker (DAB) in the GEOSS Common Infrastructure (GCI) allowed to lower significantly the entry barriers for data users and producers, and thus to increase the order of magnitude of discoverable resources in the GCI, from hundreds of thousands to millions. This is a major step forward but from discovery to access, the road is still long! Either missing accessibility information in the metadata or broken links represent the major issue that prevents the real exploitation of the GCI resources. This is a remarkable problem for users attempting to exploit services and datasets obtained through a DAB query. This issue can be minimized providing the user with a ranked list of results that takes into account the real availability and accessibility of resources. We present in this work a methodology that overcomes the problem described above by improving the ranking algorithm, which is currently applied to the result set of a query to the DAB. The proposed methodology is based on the following steps: 1) Verify if information related to the accessibility of resources is described in the metadata provided by GEOSS contributors; 2) If accessibility information is provided, identify the type of resources (e.g. services, datasets) and produce modified and standardized accessibility information in a consistent manner; 3) Use standardized information to test accessibility and availability of resources using a probing approach; 4) Use the results returned in the ranking algorithm to assign the correct weight to

  20. 19 CFR 213.5 - Access to Commission resources.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 19 Customs Duties 3 2014-04-01 2014-04-01 false Access to Commission resources. 213.5 Section 213... IMPORT TRADE TRADE REMEDY ASSISTANCE § 213.5 Access to Commission resources. Commission resources, in addition to the Office's resources, are available to an eligible small business to the same extent as...

  1. 19 CFR 213.5 - Access to Commission resources.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 19 Customs Duties 3 2013-04-01 2013-04-01 false Access to Commission resources. 213.5 Section 213... IMPORT TRADE TRADE REMEDY ASSISTANCE § 213.5 Access to Commission resources. Commission resources, in addition to the Office's resources, are available to an eligible small business to the same extent as...

  2. 19 CFR 213.5 - Access to Commission resources.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 19 Customs Duties 3 2012-04-01 2012-04-01 false Access to Commission resources. 213.5 Section 213... IMPORT TRADE TRADE REMEDY ASSISTANCE § 213.5 Access to Commission resources. Commission resources, in addition to the Office's resources, are available to an eligible small business to the same extent as...

  3. 19 CFR 213.5 - Access to Commission resources.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 19 Customs Duties 3 2011-04-01 2011-04-01 false Access to Commission resources. 213.5 Section 213... IMPORT TRADE TRADE REMEDY ASSISTANCE § 213.5 Access to Commission resources. Commission resources, in addition to the Office's resources, are available to an eligible small business to the same extent as...

  4. 19 CFR 213.5 - Access to Commission resources.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 19 Customs Duties 3 2010-04-01 2010-04-01 false Access to Commission resources. 213.5 Section 213... IMPORT TRADE TRADE REMEDY ASSISTANCE § 213.5 Access to Commission resources. Commission resources, in addition to the Office's resources, are available to an eligible small business to the same extent as...

  5. Increasing Accessibility by Pooling Digital Resources

    ERIC Educational Resources Information Center

    Cushion, Steve

    2004-01-01

    There are now many CALL authoring packages that can create interactive websites and a large number of language teachers are writing materials for the whole range of such packages. Currently, each product stores its data in different formats thus hindering interoperability, pooling of digital resources and moving between software packages based in…

  6. 28 CFR 551.117 - Access to legal resources.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 28 Judicial Administration 2 2012-07-01 2012-07-01 false Access to legal resources. 551.117... MISCELLANEOUS Pretrial Inmates § 551.117 Access to legal resources. (a) The Warden shall provide the opportunity... the inmate's request, to telephone the inmate's attorney as often as resources of the...

  7. 28 CFR 551.117 - Access to legal resources.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 28 Judicial Administration 2 2014-07-01 2014-07-01 false Access to legal resources. 551.117... MISCELLANEOUS Pretrial Inmates § 551.117 Access to legal resources. (a) The Warden shall provide the opportunity... the inmate's request, to telephone the inmate's attorney as often as resources of the...

  8. 28 CFR 551.117 - Access to legal resources.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 28 Judicial Administration 2 2013-07-01 2013-07-01 false Access to legal resources. 551.117... MISCELLANEOUS Pretrial Inmates § 551.117 Access to legal resources. (a) The Warden shall provide the opportunity... the inmate's request, to telephone the inmate's attorney as often as resources of the...

  9. 28 CFR 551.117 - Access to legal resources.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 28 Judicial Administration 2 2011-07-01 2011-07-01 false Access to legal resources. 551.117... MISCELLANEOUS Pretrial Inmates § 551.117 Access to legal resources. (a) The Warden shall provide the opportunity... the inmate's request, to telephone the inmate's attorney as often as resources of the...

  10. 28 CFR 551.117 - Access to legal resources.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 28 Judicial Administration 2 2010-07-01 2010-07-01 false Access to legal resources. 551.117... MISCELLANEOUS Pretrial Inmates § 551.117 Access to legal resources. (a) The Warden shall provide the opportunity... the inmate's request, to telephone the inmate's attorney as often as resources of the...

  11. Rural providers' access to online resources: a randomized controlled trial

    PubMed Central

    Hall, Laura J.; McElfresh, Karen R.; Warner, Teddy D.; Stromberg, Tiffany L.; Trost, Jaren; Jelinek, Devin A.

    2016-01-01

    Objective The research determined the usage and satisfaction levels with one of two point-of-care (PoC) resources among health care providers in a rural state. Methods In this randomized controlled trial, twenty-eight health care providers in rural areas were stratified by occupation and region, then randomized into either the DynaMed or the AccessMedicine study arm. Study participants were physicians, physician assistants, and nurses. A pre- and post-study survey measured participants' attitudes toward different information resources and their information-seeking activities. Medical student investigators provided training and technical support for participants. Data analyses consisted of analysis of variance (ANOVA), paired t tests, and Cohen's d statistic to compare pre- and post-study effects sizes. Results Participants in both the DynaMed and the AccessMedicine arms of the study reported increased satisfaction with their respective PoC resource, as expected. Participants in both arms also reported that they saved time in finding needed information. At baseline, both arms reported too little information available, which increased to “about right amounts of information” at the completion of the study. DynaMed users reported a Cohen's d increase of +1.50 compared to AccessMedicine users' reported use of 0.82. DynaMed users reported d2 satisfaction increases of 9.48 versus AccessMedicine satisfaction increases of 0.59 using a Cohen's d. Conclusion Participants in the DynaMed arm of the study used this clinically oriented PoC more heavily than the users of the textbook-based AccessMedicine. In terms of user satisfaction, DynaMed users reported higher levels of satisfaction than the users of AccessMedicine. PMID:26807050

  12. Enabling Virtual Observatory Access to Planetary Resources through PDS4

    NASA Astrophysics Data System (ADS)

    Hughes, J. S.; Hardman, S. H.; Crichton, D. J.; Cecconi, B.; Barbarisi, I.; Arviset, C.

    2015-12-01

    PDS4, the next generation Planetary Data System (PDS), was developed using architectural principles that enable relatively easy access to the planetary science digital archive. The Virtual Observatory's Europlanet-VO Table Access Protocol (EPN-TAP) provides a good use case to demonstrate how an additional international protocol can be applied to allow access to international planetary science resources. PDS4 consists primarily of two architectural components, an information and systems architecture. The information architecture is developed and maintained independent of the systems architecture and provides a formal, sharable, and stable set of requirements that enable understanding of the system, the configuration of system components, and the basis for mapping to and from external systems. The architecture also includes multi-level governance for flexibility. The application architecture is a system based on generic common software and common protocols for accessing that software. These include the PDS Registry Service with its REST-based API as the main component and the PDS Search Service based on Apache Solr providing support for high performance facet-based search. The PDS4 information model provides data object definitions and configures the software where appropriate. The EPN-TAP data access protocol has been set up to search and retrieve Planetary Science data in general. This protocol will allow the user to select a subset of data from an archive in a standard way, based on the IVOA Table Access Protocol (TAP). The TAP mechanism is defined by an underlying Data Model and reference dictionaries. This presentation will provide an overview of PDS4, EPN-TAP, and a test-bed to demonstrate and test the potential capabilities for Virtual Observatory access to NASA's Planetary Science Archive.

  13. Controlling user access to electronic resources without password

    SciTech Connect

    Smith, Fred Hewitt

    2015-06-16

    Described herein are devices and techniques for remotely controlling user access to a restricted computer resource. The process includes pre-determining an association of the restricted computer resource and computer-resource-proximal environmental information. Indicia of user-proximal environmental information are received from a user requesting access to the restricted computer resource. Received indicia of user-proximal environmental information are compared to associated computer-resource-proximal environmental information. User access to the restricted computer resource is selectively granted responsive to a favorable comparison in which the user-proximal environmental information is sufficiently similar to the computer-resource proximal environmental information. In at least some embodiments, the process further includes comparing user-supplied biometric measure and comparing it with a predetermined association of at least one biometric measure of an authorized user. Access to the restricted computer resource is granted in response to a favorable comparison.

  14. Access to Resources: The International Dimension.

    ERIC Educational Resources Information Center

    Line, Maurice B.

    1986-01-01

    Notes four Ages of Access to published knowledge--Individual, Local, National, and International--and considers impact of computers and electronic technology. Speed of access, automatic catalogs, digital text storage and transmission, need for observance of common standards and procedures, international cooperation, and worldwide system of…

  15. Resource-Based Learning.

    ERIC Educational Resources Information Center

    Brown, Sally, Ed.; Smith, Brenda, Ed.

    The selections in this book encompass a broad spectrum of resource-based learning experiences, and are intended to help teachers and administrators gain a better understanding of the concepts and devise effective and efficient ways to use these materials. Titles include: "Introducing Resources for Learning" (Sally Brown and Brenda Smith);…

  16. Improving Access Using Simulations of Community Resources.

    ERIC Educational Resources Information Center

    Germann, Clark; Broida, Jane Kaufman; Broida, Jeffrey M.; Thompson, Kimberly

    The Community Access Through Technology Project (CATT) is developing and implementing virtual reality software that persons with disabilities can use to experience a physical location prior to visiting it in person. A virtual scenario of one physical location has been developed, implemented, and tested, and work is underway on two others. Using a…

  17. Method and apparatus for granting processors access to a resource

    DOEpatents

    Blumrich, Matthias A.; Salapura, Valentina

    2010-03-16

    An apparatus and method for granting one or more requesting entities access to a resource in a predetermined time interval. The apparatus includes a first circuit receiving one or more request signals, and implementing logic for assigning a priority to the one or more request signals, and, generating a set of first_request signals based on the priorities assigned. One or more priority select circuits for receiving the set of first_request signals and generating corresponding one or more fixed grant signals representing one or more highest priority request signals when asserted during the predetermined time interval. A second circuit device receives the one or more fixed grant signals generates one or more grant signals associated with one or more highest priority request signals assigned, the grant signals for enabling one or more respective requesting entities access to the resource in the predetermined time interval, wherein the priority assigned to the one or more request signals changes each successive predetermined time interval. In one embodiment, the assigned priority is based on a numerical pattern, the first circuit changing the numerical pattern with respect to the first_request signals generated at each successive predetermined time interval.

  18. Making family planning accessible in resource-poor settings.

    PubMed

    Prata, Ndola

    2009-10-27

    It is imperative to make family planning more accessible in low resource settings. The poorest couples have the highest fertility, the lowest contraceptive use and the highest unmet need for contraception. It is also in the low resource settings where maternal and child mortality is the highest. Family planning can contribute to improvements in maternal and child health, especially in low resource settings where overall access to health services is limited. Four critical steps should be taken to increase access to family planning in resource-poor settings: (i) increase knowledge about the safety of family planning methods; (ii) ensure contraception is genuinely affordable to the poorest families; (iii) ensure supply of contraceptives by making family planning a permanent line item in healthcare system's budgets and (iv) take immediate action to remove barriers hindering access to family planning methods. In Africa, there are more women with an unmet need for family planning than women currently using modern methods. Making family planning accessible in low resource settings will help decrease the existing inequities in achieving desired fertility at individual and country level. In addition, it could help slow population growth within a human rights framework. The United Nations Population Division projections for the year 2050 vary between a high of 10.6 and a low of 7.4 billion. Given that most of the growth is expected to come from today's resource-poor settings, easy access to family planning could make a difference of billions in the world in 2050. PMID:19770158

  19. Technology Resources: Mathematics Accessibility for All Not Accommodation for Some

    ERIC Educational Resources Information Center

    Duranczyk, Irene M.

    2009-01-01

    When faculty and learning assistance staff create teaching documents and web pages envisioning the widest range of users they can save time while achieving access for all. There are tools and techniques available to make mathematics visual, orally, and dynamically more accessible through multimodal presentation forms. Resources from Design…

  20. Guaranteed Access to Campus Network Resources: Policies and Issues.

    ERIC Educational Resources Information Center

    Hassler, Ardoth A.

    1998-01-01

    Reports on a options and issues discussion at a December 1997 Orlando (Florida) meeting of CAUSE97 on providing access to campus technology resources. Options discussed included departmentally and/or university-owned modems, third-party provider contracts, and using wireless access. Issues included providing authentication, assuring network…

  1. Open access, open education resources and open data in Uganda

    PubMed Central

    Salvo, Ivana Di; Mwoka, Meggie; Kwaga, Teddy; Rukundo, Priscilla Aceng; Ernest, Dennis Ssesanga; Osaheni, Louis Aikoriogie; John, Kasibante; Shafik, Kasirye; de Sousa, Agostinho Moreira

    2015-01-01

    As a follow up to OpenCon 2014, International Federation of Medical Students’ Associations (IFMSA) students organized a 3 day workshop Open Access, Open Education Resources and Open Data in Kampala from 15-18 December 2014. One of the aims of the workshop was to engage the Open Access movement in Uganda which encompasses the scientific community, librarians, academia, researchers and students. The IFMSA students held the workshop with the support of: Consortium for Uganda University Libraries (CUUL), The Right to Research Coalition, Electronic Information for Libraries (EIFL), Makerere University, International Health Sciences University (IHSU), Pan African Medical Journal (PAMJ) and the Centre for Health Human Rights and Development (CEHURD). All these organizations are based or have offices in Kampala. The event culminated in a meeting with the Science and Technology Committee of Parliament of Uganda in order to receive the support of the Ugandan Members of Parliament and to make a concrete change for Open Access in the country. PMID:26327966

  2. Open access, open education resources and open data in Uganda.

    PubMed

    Salvo, Ivana Di; Mwoka, Meggie; Kwaga, Teddy; Rukundo, Priscilla Aceng; Ernest, Dennis Ssesanga; Osaheni, Louis Aikoriogie; John, Kasibante; Shafik, Kasirye; de Sousa, Agostinho Moreira

    2015-01-01

    As a follow up to OpenCon 2014, International Federation of Medical Students' Associations (IFMSA) students organized a 3 day workshop Open Access, Open Education Resources and Open Data in Kampala from 15-18 December 2014. One of the aims of the workshop was to engage the Open Access movement in Uganda which encompasses the scientific community, librarians, academia, researchers and students. The IFMSA students held the workshop with the support of: Consortium for Uganda University Libraries (CUUL), The Right to Research Coalition, Electronic Information for Libraries (EIFL), Makerere University, International Health Sciences University (IHSU), Pan African Medical Journal (PAMJ) and the Centre for Health Human Rights and Development (CEHURD). All these organizations are based or have offices in Kampala. The event culminated in a meeting with the Science and Technology Committee of Parliament of Uganda in order to receive the support of the Ugandan Members of Parliament and to make a concrete change for Open Access in the country. PMID:26327966

  3. Access to the world's resources: women's health.

    PubMed Central

    Heiberg, A N

    1996-01-01

    Women's health at any point in their lives, from before birth through old age, reflects a multitude of factors, including environmental, cultural, and socioeconomic. However, even in parts of the world where women have achieved control over family planning and family resources and equal men in educational opportunities, the increase in their life expectancy, although greater than men's, is flattening out. Questions on the effect the changing lifestyles have on women's health are posed, and the paper closes with a discussion of women as objects of research. PMID:8938335

  4. Resource-Based Learning.

    ERIC Educational Resources Information Center

    Thomas, Margie Klink

    1999-01-01

    Provides an annotated bibliography of publications related to resource-based learning, which is defined as a student-centered learning environment grounded in learning theory in which the teacher and the library-media specialist collaborate to help students with information needs, information retrieval, analyzing and synthesizing the information,…

  5. Adapting Online Learning Resources for All: Planning for Professionalism in Accessibility

    ERIC Educational Resources Information Center

    McAndrew, Patrick; Farrow, Robert; Cooper, Martyn

    2012-01-01

    Online resources for education offer opportunities for those with disabilities but also raise challenges on how to best adjust resources to accommodate accessibility. Automated reconfiguration could in principle remove the need for expensive and time-consuming discussions about adaptation. On the other hand, human-based systems provide much needed…

  6. Geothermal resource data base: Arizona

    SciTech Connect

    Witcher, J.C.

    1995-09-01

    This report provides a compilation of geothermal well and spring information in Arizona up to 1993. This report and data base are a part of a larger congressionally-funded national effort to encourage and assist geothermal direct-use. In 1991, the US Department of Energy, Geothermal Division (DOE/GD) began a Low-Temperature Geothermal Resources and Technology Transfer Program. Phase 1 of this program includes updating the inventory of wells and springs of ten western states and placing these data into a digital format that is universally accessible to the PC. The Oregon Institute of Technology GeoHeat Center (OIT) administers the program and the University of Utah Earth Sciences and Resources Institute (ESRI) provides technical direction. In recent years, the primary growth in geothermal use in Arizona has occurred in aquaculture. Other uses include minor space heating and supply of warm mineral waters for health spas.

  7. Data Resources for Accessing MARGINS, Ridge 2000 and ODP Data

    NASA Astrophysics Data System (ADS)

    Goodwillie, A.; Carbotte, S.; Arko, R.; O'Hara, S.; Ryan, W.; Melkonian, A.; Ferrini, V.; Weissel, R.; Bonczkowski, J.

    2007-12-01

    Web-based digital databases are being developed by a number of academic and governmental groups to improve the ability of researchers and students to access geoscience data in a convenient and user-friendly manner. With funding from the U.S. National Science Foundation, the Marine Geoscience Data System (MGDS) (http://www.marine-geo.org/) serves as the data portal for the NSF MARGINS program, providing free public access and preservation to a wide variety of marine and terrestrial data collected during MARGINS projects. The broad suite of integrated database holdings includes rock, fluid, biology and sediment samples information and station details, multibeam bathymetry and underway geophysical data, multi-channel seismics, and water column data. Seamless links point to external repositories for geodetic data (UNAVCO), and land seismic campaign data (IRIS). GeoMapApp (http://www.geomapapp.org/), an MGDS data visualization tool, supports map-based dynamic exploration of data using a multi-resolution global digital elevation model. Built-in land and marine data sets include EarthChem geochemistry, plate boundaries, DSDP/ODP core logs, earthquake events, seafloor photos, and submersible dive tracks. Users can also access land and marine data sets through OGC-compliant Web Services provided by external repositories including PetDB, UNAVCO, IRIS and NGDC. Users can generate custom maps and grids and import their own data sets and grids. A set of short, video-style online tutorials familiarises users step-by-step with GeoMapApp functionality (http://www.geomapapp.org/tutorials/). GeoMapApp is used in a number of undergraduate mini-lessons created during the MARGINS EPO workshop (April, 2007) and is the basis for two education modules hosted at SERC-Carlton (http://www.marine- geo.org/Education.html). MGDS data portal resources make available a wide variety of real scientific data from large NSF-supported research programs. Examples of accessing and manipulating a range

  8. Analytical resource assessment method for continuous (unconventional) oil and gas accumulations - The "ACCESS" Method

    USGS Publications Warehouse

    Crovelli, Robert A.; revised by Charpentier, Ronald R.

    2012-01-01

    The U.S. Geological Survey (USGS) periodically assesses petroleum resources of areas within the United States and the world. The purpose of this report is to explain the development of an analytic probabilistic method and spreadsheet software system called Analytic Cell-Based Continuous Energy Spreadsheet System (ACCESS). The ACCESS method is based upon mathematical equations derived from probability theory. The ACCESS spreadsheet can be used to calculate estimates of the undeveloped oil, gas, and NGL (natural gas liquids) resources in a continuous-type assessment unit. An assessment unit is a mappable volume of rock in a total petroleum system. In this report, the geologic assessment model is defined first, the analytic probabilistic method is described second, and the spreadsheet ACCESS is described third. In this revised version of Open-File Report 00-044 , the text has been updated to reflect modifications that were made to the ACCESS program. Two versions of the program are added as appendixes.

  9. 48 CFR 3004.470 - Security requirements for access to unclassified facilities, Information Technology resources...

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... access to unclassified facilities, Information Technology resources, and sensitive information. 3004.470... Technology resources, and sensitive information. ... ACQUISITION REGULATION (HSAR) GENERAL ADMINISTRATIVE MATTERS Safeguarding Classified and Sensitive...

  10. 48 CFR 3004.470 - Security requirements for access to unclassified facilities, Information Technology resources...

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... access to unclassified facilities, Information Technology resources, and sensitive information. 3004.470... Technology resources, and sensitive information. ... ACQUISITION REGULATION (HSAR) GENERAL ADMINISTRATIVE MATTERS Safeguarding Classified and Sensitive...

  11. 48 CFR 3004.470 - Security requirements for access to unclassified facilities, Information Technology resources...

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... access to unclassified facilities, Information Technology resources, and sensitive information. 3004.470... Technology resources, and sensitive information. ... ACQUISITION REGULATION (HSAR) GENERAL ADMINISTRATIVE MATTERS Safeguarding Classified and Sensitive...

  12. 48 CFR 3004.470 - Security requirements for access to unclassified facilities, Information Technology resources...

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... access to unclassified facilities, Information Technology resources, and sensitive information. 3004.470... Technology resources, and sensitive information. ... ACQUISITION REGULATION (HSAR) GENERAL ADMINISTRATIVE MATTERS Safeguarding Classified and Sensitive...

  13. Information Resources on Online Public Access Catalogs. A Selected ERIC Bibliography.

    ERIC Educational Resources Information Center

    ERIC Clearinghouse on Information Resources, Syracuse, NY.

    Sixteen articles, books, and reports published between 1978 and 1983 and cited in "Resources in Education" and "Current Index to Journals in Education" are listed in this bibliography on online public access catalogs (OPACs). Emphasis is on the movement toward computer-based alternatives to library card catalogs and user studies. Topics include…

  14. The Quality of Urban Environments: Mapping Variation in Access to Community Resources.

    ERIC Educational Resources Information Center

    Witten, Karen; Exeter, Daniel; Field, Adrian

    2003-01-01

    Discusses the relationship between community infrastructure and health through the development of the Community Resource Accessibility Index (CRAI) research tool.This area-based index of community services, facilities, and amenities enables comparisons between opportunity structures in the local environment and residents' health and wellbeing. It…

  15. Resource reliability, accessibility and governance: pillars for managing water resources to achieve water security in Nepal

    NASA Astrophysics Data System (ADS)

    Biggs, E. M.; Duncan, J.; Atkinson, P.; Dash, J.

    2013-12-01

    As one of the world's most water-abundant countries, Nepal has plenty of water yet resources are both spatially and temporally unevenly distributed. With a population heavily engaged in subsistence farming, whereby livelihoods are entirely dependent on rain-fed agriculture, changes in freshwater resources can substantially impact upon survival. The two main sources of water in Nepal come from monsoon precipitation and glacial runoff. The former is essential for sustaining livelihoods where communities have little or no access to perennial water resources. Much of Nepal's population live in the southern Mid-Hills and Terai regions where dependency on the monsoon system is high and climate-environment interactions are intricate. Any fluctuations in precipitation can severely affect essential potable resources and food security. As the population continues to expand in Nepal, and pressures build on access to adequate and clean water resources, there is a need for institutions to cooperate and increase the effectiveness of water management policies. This research presents a framework detailing three fundamental pillars for managing water resources to achieve sustainable water security in Nepal. These are (i) resource reliability; (ii) adequate accessibility; and (iii) effective governance. Evidence is presented which indicates that water resources are adequate in Nepal to sustain the population. In addition, aspects of climate change are having less impact than previously perceived e.g. results from trend analysis of precipitation time-series indicate a decrease in monsoon extremes and interannual variation over the last half-century. However, accessibility to clean water resources and the potential for water storage is limiting the use of these resources. This issue is particularly prevalent given the heterogeneity in spatial and temporal distributions of water. Water governance is also ineffective due to government instability and a lack of continuity in policy

  16. Task Delegation Based Access Control Models for Workflow Systems

    NASA Astrophysics Data System (ADS)

    Gaaloul, Khaled; Charoy, François

    e-Government organisations are facilitated and conducted using workflow management systems. Role-based access control (RBAC) is recognised as an efficient access control model for large organisations. The application of RBAC in workflow systems cannot, however, grant permissions to users dynamically while business processes are being executed. We currently observe a move away from predefined strict workflow modelling towards approaches supporting flexibility on the organisational level. One specific approach is that of task delegation. Task delegation is a mechanism that supports organisational flexibility, and ensures delegation of authority in access control systems. In this paper, we propose a Task-oriented Access Control (TAC) model based on RBAC to address these requirements. We aim to reason about task from organisational perspectives and resources perspectives to analyse and specify authorisation constraints. Moreover, we present a fine grained access control protocol to support delegation based on the TAC model.

  17. Access to Resources in Different Age-Cohorts: Implications for Activity Level, Loneliness, and Life Satisfaction.

    ERIC Educational Resources Information Center

    Malmberg, Bo

    This thesis uses a resource theoretical approach to study and analyze social psychological phenomena in different age-cohorts. Resources are seen as any asset the person has access to in a certain situation. Access to resources are crucial to meet the demands of the surrounding environment. When the resources are sufficient to cope with the…

  18. Intelligent resource discovery using ontology-based resource profiles

    NASA Technical Reports Server (NTRS)

    Hughes, J. Steven; Crichton, Dan; Kelly, Sean; Crichton, Jerry; Tran, Thuy

    2004-01-01

    Successful resource discovery across heterogeneous repositories is strongly dependent on the semantic and syntactic homogeneity of the associated resource descriptions. Ideally, resource descriptions are easily extracted from pre-existing standardized sources, expressed using standard syntactic and semantic structures, and managed and accessed within a distributed, flexible, and scaleable software framework.

  19. Accessing remote data bases using microcomputers

    PubMed Central

    Saul, Peter D.

    1985-01-01

    General practitioners' access to remote data bases using microcomputers is increasing, making even the most obscure information readily available. Some of the systems available to general practitioners in the UK are described and the methods of access are outlined. General practitioners should be aware of the advances in technology; data bases are increasing in size, the cost of access is falling and their use is becoming easier. PMID:4020756

  20. Web-based Access to Locally Developed Databases.

    ERIC Educational Resources Information Center

    Mischo, William H.; Schlembach, Mary C.

    1999-01-01

    Describes the Web-based technologies employed by the Grainger Engineering Library Information Center at the University of Illinois, Urbana-Champaign in implementing access to local information resources. Discusses Microsoft Active Server Pages (ASP) technologies and the associated local database structure and format, as well as the general…

  1. Resource data bases-Resource assessment

    USGS Publications Warehouse

    Clark, A.L.

    1976-01-01

    The U.S. Geological Survey's Office of Resource Analysis is developing computer methods for the handling of mineral-resources data in order to provide improved means for addressing and manipulating data. These methods include: computerized data files and predictive resource models. Data files contain the raw or disaggregated information on mineral deposits and commodities. One operational data file is CRIB (Computerized Resources Information Bank) which is a general purpose inventory and reference file on metallic and nonmetallic mineral deposits. A computer file on resources should contain detailed information on the following main categories: record identification, name and location, description of deposit, analytical data, and production/reserves. A resource model employs postulates and inferences in conjunction with the data to make predictions about resources-as key variables concerning a mineral commodity are changed. The objective is to estimate the availability of minerals including: geological availability (occurrence models), technological availability (exploration and beneficiation models), and economic availability (economics models). ?? 1976.

  2. Access to Education with Online Learning and Open Educational Resources: Can They Close the Gap?

    ERIC Educational Resources Information Center

    Geith, Christine; Vignare, Karen

    2008-01-01

    One of the key concepts in the right to education is access: access to the means to fully develop as human beings as well as access to the means to gain skills, knowledge and credentials. This is an important perspective through which to examine the solutions to access enabled by Open Educational Resources (OER) and online learning. The authors…

  3. Hospital nurses' use of knowledge-based information resources.

    PubMed

    Tannery, Nancy Hrinya; Wessel, Charles B; Epstein, Barbara A; Gadd, Cynthia S

    2007-01-01

    The purpose of this study was to evaluate the information-seeking practices of nurses before and after access to a library's electronic collection of information resources. This is a pre/post intervention study of nurses at a rural community hospital. The hospital contracted with an academic health sciences library for access to a collection of online knowledge-based resources. Self-report surveys were used to obtain information about nurses' computer use and how they locate and access information to answer questions related to their patient care activities. In 2001, self-report surveys were sent to the hospital's 573 nurses during implementation of access to online resources with a post-implementation survey sent 1 year later. At the initiation of access to the library's electronic resources, nurses turned to colleagues and print textbooks or journals to satisfy their information needs. After 1 year of access, 20% of the nurses had begun to use the library's electronic resources. The study outcome suggests ready access to knowledge-based electronic information resources can lead to changes in behavior among some nurses.

  4. Formal Description of Trust-based Access Control

    NASA Astrophysics Data System (ADS)

    Xiaoning, Ma

    Different from traditional access control technologies, such as discretionary access control, mandatory access control, role-based access control, trust-based access control can solve the problem of uncertainty, risk and vulnerability coming from authorization. In this paper, strict definition and formal description of trust-based access control is defined.

  5. Open Access Internet Resources for Nano-Materials Physics Education

    NASA Astrophysics Data System (ADS)

    Moeck, Peter; Seipel, Bjoern; Upreti, Girish; Harvey, Morgan; Garrick, Will

    2006-05-01

    Because a great deal of nano-material science and engineering relies on crystalline materials, materials physicists have to provide their own specific contributions to the National Nanotechnology Initiative. Here we briefly review two freely accessible internet-based crystallographic databases, the Nano-Crystallography Database (http://nanocrystallography.research.pdx.edu) and the Crystallography Open Database (http://crystallography.net). Information on over 34,000 full structure determinations are stored in these two databases in the Crystallographic Information File format. The availability of such crystallographic data on the internet in a standardized format allows for all kinds of web-based crystallographic calculations and visualizations. Two examples of which that are dealt with in this paper are: interactive crystal structure visualizations in three dimensions and calculations of lattice-fringe fingerprints for the identification of unknown nanocrystals from their atomic-resolution transmission electron microscopy images.

  6. Mineral-resource data bases

    USGS Publications Warehouse

    ,

    1997-01-01

    Data bases are essential for modern scientific research. The new and exciting work being done in the Mineral Resource Program in the U.S. Geological Survey (USGS) usually begins with the question, "Where are the known deposits?" A mineral-resource data base containing this type of information and more can be useful not just to USGS scientists, but to anyone who needs such data. Users of the data bases from outside the USGS include mining and exploration companies, environmental groups, academia, other Federal Agencies, and the general public. At present, the USGS has two large mineral-resource data bases, MRDS (Mineral Resource Data System) and MAS (Minerals Availability System). MRDS was built and is mamtained by the USGS, and MAS was built and maintained by the Bureau of Mines. In 1996, after the Bureau was abolished, MAS was transferred to the USGS. The two data bases were compiled for different purposes and contain very different mformation. For instance, MAS contains information on costs, details of mining methods, and feasibility studies. MRDS has mineralogical and geologic data that are not contained in MAS. Because they are both mineral-resource data bases, however, they contain some information in common, such as location, name(s) of sites, and commodities present. Both data bases are international in scope, and both are quite large. MRDS contains over 110,000 records, while MAS has over 220,000. One reason that MAS has more records is that it contains information on smelters, mill sites, and fossil fuel sites, as well as mineral- resource sites. The USGS is working to combine the information in both data bases. This is a large undertaking that will require some years to complete. In the interim, information from both data bases will still be available

  7. LcgCAF: CDF access method to LCG resources

    NASA Astrophysics Data System (ADS)

    Compostella, Gabriele; Bauce, Matteo; Pagan Griso, Simone; Lucchesi, Donatella; Sgaravatto, Massimo; Cecchi, Marco

    2011-12-01

    Up to the early 2011, the CDF collaboration has collected more than 8 fb-1 of data from pbar p collisions at a center of mass energy TeV delivered by the Tevatron collider at Fermilab. Second generation physics measurements, like precision determinations of top properties or searches for the Standard Model higgs, require increasing computing power for data analysis and events simulation. Instead of expanding its set of dedicated Condor based analysis farms, CDF moved to Grid resources. While in the context of OSG this transition was performed using Condor glideins and keeping CDF custom middleware software almost intact, in LCG a complete rewrite of the experiment's submission and monitoring tools was realized, taking full advantage of the features offered by the gLite Workload Management System (WMS). This led to the development of a new computing facility called LcgCAF that CDF collaborators are using to exploit Grid resources in Europe in a transparent way. Given the opportunistic usage of the available resources, it is of crucial importance for CDF to maximize jobs efficiency from submission to output retrieval. This work describes how an experimental resubmisson feature implemented in the WMS was tested in LcgCAF with the aim of lowering the overall execution time of a typical CDF job.

  8. Providing Effective Access to Shared Resources: A COIN Approach

    NASA Technical Reports Server (NTRS)

    Airiau, Stephane; Wolpert, David H.

    2004-01-01

    Managers of systems of shared resources typically have many separate goals. Examples are efficient utilization of the resources among its users and ensuring no user s satisfaction in the system falls below a preset minimal level. Since such goals will usually conflict with one another, either implicitly or explicitly the manager must determine the relative importance of the goals, encapsulating that into an overall utility function rating the possible behaviors of the entire system. Here we demonstrate a distributed, robust, and adaptive way to optimize that overall function. Our approach is to interpose adaptive agents between each user and the system, where each such agent is working to maximize its own private utility function. In turn, each such agent's function should be both relatively easy for the agent to learn to optimize, and "aligned" with the overall utility function of the system manager - an overall function that is based on but in general different from the satisfaction functions of the individual users. To ensure this we enhance the Collective INtelligence (COIN) framework to incorporate user satisfaction functions in the overall utility function of the system manager and accordingly in the associated private utility functions assigned to the users agents. We present experimental evaluations of different COIN-based private utility functions and demonstrate that those COIN-based functions outperform some natural alternatives.

  9. Providing Effective Access to Shared Resources: A COIN Approach

    NASA Technical Reports Server (NTRS)

    Airiau, Stephane; Wolpert, David H.; Sen, Sandip; Tumer, Kagan

    2003-01-01

    Managers of systems of shared resources typically have many separate goals. Examples are efficient utilization of the resources among its users and ensuring no user's satisfaction in the system falls below a preset minimal level. Since such goals will usually conflict with one another, either implicitly or explicitly the manager must determine the relative importance of the goals, encapsulating that into an overall utility function rating the possible behaviors of the entire system. Here we demonstrate a distributed, robust, and adaptive way to optimize that overall function. Our approach is to interpose adaptive agents between each user and the system, where each such agent is working to maximize its own private utility function. In turn, each such agent's function should be both relatively easy for the agent to learn to optimize, and 'aligned' with the overall utility function of the system manager - an overall function that is based on but in general different from the satisfaction functions of the individual users. To ensure this we enhance the COllective INtelligence (COIN) framework to incorporate user satisfaction functions in the overall utility function of the system manager and accordingly in the associated private utility functions assigned to the users agents. We present experimental evaluations of different COIN-based private utility functions and demonstrate that those COIN-based functions outperform some natural alternatives.

  10. Access Control of Web and Java Based Applications

    NASA Technical Reports Server (NTRS)

    Tso, Kam S.; Pajevski, Michael J.; Johnson, Bryan

    2011-01-01

    Cyber security has gained national and international attention as a result of near continuous headlines from financial institutions, retail stores, government offices and universities reporting compromised systems and stolen data. Concerns continue to rise as threats of service interruption, and spreading of viruses become ever more prevalent and serious. Controlling access to application layer resources is a critical component in a layered security solution that includes encryption, firewalls, virtual private networks, antivirus, and intrusion detection. In this paper we discuss the development of an application-level access control solution, based on an open-source access manager augmented with custom software components, to provide protection to both Web-based and Java-based client and server applications.

  11. Decentralized Opportunistic Spectrum Resources Access Model and Algorithm toward Cooperative Ad-Hoc Networks.

    PubMed

    Liu, Ming; Xu, Yang; Mohammed, Abdul-Wahid

    2016-01-01

    Limited communication resources have gradually become a critical factor toward efficiency of decentralized large scale multi-agent coordination when both system scales up and tasks become more complex. In current researches, due to the agent's limited communication and observational capability, an agent in a decentralized setting can only choose a part of channels to access, but cannot perceive or share global information. Each agent's cooperative decision is based on the partial observation of the system state, and as such, uncertainty in the communication network is unavoidable. In this situation, it is a major challenge working out cooperative decision-making under uncertainty with only a partial observation of the environment. In this paper, we propose a decentralized approach that allows agents cooperatively search and independently choose channels. The key to our design is to build an up-to-date observation for each agent's view so that a local decision model is achievable in a large scale team coordination. We simplify the Dec-POMDP model problem, and each agent can jointly work out its communication policy in order to improve its local decision utilities for the choice of communication resources. Finally, we discuss an implicate resource competition game, and show that, there exists an approximate resources access tradeoff balance between agents. Based on this discovery, the tradeoff between real-time decision-making and the efficiency of cooperation using these channels can be well improved. PMID:26727504

  12. Decentralized Opportunistic Spectrum Resources Access Model and Algorithm toward Cooperative Ad-Hoc Networks

    PubMed Central

    Liu, Ming; Xu, Yang; Mohammed, Abdul-Wahid

    2016-01-01

    Limited communication resources have gradually become a critical factor toward efficiency of decentralized large scale multi-agent coordination when both system scales up and tasks become more complex. In current researches, due to the agent’s limited communication and observational capability, an agent in a decentralized setting can only choose a part of channels to access, but cannot perceive or share global information. Each agent’s cooperative decision is based on the partial observation of the system state, and as such, uncertainty in the communication network is unavoidable. In this situation, it is a major challenge working out cooperative decision-making under uncertainty with only a partial observation of the environment. In this paper, we propose a decentralized approach that allows agents cooperatively search and independently choose channels. The key to our design is to build an up-to-date observation for each agent’s view so that a local decision model is achievable in a large scale team coordination. We simplify the Dec-POMDP model problem, and each agent can jointly work out its communication policy in order to improve its local decision utilities for the choice of communication resources. Finally, we discuss an implicate resource competition game, and show that, there exists an approximate resources access tradeoff balance between agents. Based on this discovery, the tradeoff between real-time decision-making and the efficiency of cooperation using these channels can be well improved. PMID:26727504

  13. Decentralized Opportunistic Spectrum Resources Access Model and Algorithm toward Cooperative Ad-Hoc Networks.

    PubMed

    Liu, Ming; Xu, Yang; Mohammed, Abdul-Wahid

    2016-01-01

    Limited communication resources have gradually become a critical factor toward efficiency of decentralized large scale multi-agent coordination when both system scales up and tasks become more complex. In current researches, due to the agent's limited communication and observational capability, an agent in a decentralized setting can only choose a part of channels to access, but cannot perceive or share global information. Each agent's cooperative decision is based on the partial observation of the system state, and as such, uncertainty in the communication network is unavoidable. In this situation, it is a major challenge working out cooperative decision-making under uncertainty with only a partial observation of the environment. In this paper, we propose a decentralized approach that allows agents cooperatively search and independently choose channels. The key to our design is to build an up-to-date observation for each agent's view so that a local decision model is achievable in a large scale team coordination. We simplify the Dec-POMDP model problem, and each agent can jointly work out its communication policy in order to improve its local decision utilities for the choice of communication resources. Finally, we discuss an implicate resource competition game, and show that, there exists an approximate resources access tradeoff balance between agents. Based on this discovery, the tradeoff between real-time decision-making and the efficiency of cooperation using these channels can be well improved.

  14. Novel Genetic Resources in the Genus Vigna Unveiled from Gene Bank Accessions

    PubMed Central

    Takahashi, Yu; Somta, Prakit; Muto, Chiaki; Iseki, Kohtaro; Naito, Ken; Pandiyan, Muthaiyan; Natesan, Senthil; Tomooka, Norihiko

    2016-01-01

    The genus Vigna (Fabaceae) consists of five subgenera, and includes more than 100 wild species. In Vigna, 10 crops have been domesticated from three subgenera, Vigna, Plectrotropis, and Ceratotropis. The habitats of wild Vigna species are so diverse that their genomes could harbor various genes responsible for environmental stress adaptation, which could lead to innovations in agriculture. Since some of the gene bank Vigna accessions were unidentified and they seemed to be novel genetic resources, these accessions were identified based on morphological traits. The phylogenetic positions were estimated based on the DNA sequences of nuclear rDNA-ITS and chloroplast atpB-rbcL spacer regions. Based on the results, the potential usefulness of the recently described species V. indica and V. sahyadriana, and some wild Vigna species, i.e., V. aconitifolia, V. dalzelliana, V. khandalensis, V. marina var. oblonga, and V. vexillata, was discussed. PMID:26800459

  15. Resource allocation in shared spectrum access communications for operators with diverse service requirements

    NASA Astrophysics Data System (ADS)

    Kibria, Mirza Golam; Villardi, Gabriel Porto; Ishizu, Kentaro; Kojima, Fumihide; Yano, Hiroyuki

    2016-12-01

    In this paper, we study inter-operator spectrum sharing and intra-operator resource allocation in shared spectrum access communication systems and propose efficient dynamic solutions to address both inter-operator and intra-operator resource allocation optimization problems. For inter-operator spectrum sharing, we present two competent approaches, namely the subcarrier gain-based sharing and fragmentation-based sharing, which carry out fair and flexible allocation of the available shareable spectrum among the operators subject to certain well-defined sharing rules, traffic demands, and channel propagation characteristics. The subcarrier gain-based spectrum sharing scheme has been found to be more efficient in terms of achieved throughput. However, the fragmentation-based sharing is more attractive in terms of computational complexity. For intra-operator resource allocation, we consider resource allocation problem with users' dissimilar service requirements, where the operator supports users with delay constraint and non-delay constraint service requirements, simultaneously. This optimization problem is a mixed-integer non-linear programming problem and non-convex, which is computationally very expensive, and the complexity grows exponentially with the number of integer variables. We propose less-complex and efficient suboptimal solution based on formulating exact linearization, linear approximation, and convexification techniques for the non-linear and/or non-convex objective functions and constraints. Extensive simulation performance analysis has been carried out that validates the efficiency of the proposed solution.

  16. Current strategies for improving access and adherence to antiretroviral therapies in resource-limited settings

    PubMed Central

    Scanlon, Michael L; Vreeman, Rachel C

    2013-01-01

    The rollout of antiretroviral therapy (ART) significantly reduced human immunodeficiency virus (HIV)-related morbidity and mortality, but good clinical outcomes depend on access and adherence to treatment. In resource-limited settings, where over 90% of the world’s HIV-infected population resides, data on barriers to treatment are emerging that contribute to low rates of uptake in HIV testing, linkage to and retention in HIV care systems, and suboptimal adherence rates to therapy. A review of the literature reveals limited evidence to inform strategies to improve access and adherence with the majority of studies from sub-Saharan Africa. Data from observational studies and randomized controlled trials support home-based, mobile and antenatal care HIV testing, task-shifting from doctor-based to nurse-based and lower level provider care, and adherence support through education, counseling and mobile phone messaging services. Strategies with more limited evidence include targeted HIV testing for couples and family members of ART patients, decentralization of HIV care, including through home- and community-based ART programs, and adherence promotion through peer health workers, treatment supporters, and directly observed therapy. There is little evidence for improving access and adherence among vulnerable groups such as women, children and adolescents, and other high-risk populations and for addressing major barriers. Overall, studies are few in number and suffer from methodological issues. Recommendations for further research include health information technology, social-level factors like HIV stigma, and new research directions in cost-effectiveness, operations, and implementation. Findings from this review make a compelling case for more data to guide strategies to improve access and adherence to treatment in resource-limited settings. PMID:23326204

  17. Atom-Role-Based Access Control Model

    NASA Astrophysics Data System (ADS)

    Cai, Weihong; Huang, Richeng; Hou, Xiaoli; Wei, Gang; Xiao, Shui; Chen, Yindong

    Role-based access control (RBAC) model has been widely recognized as an efficient access control model and becomes a hot research topic of information security at present. However, in the large-scale enterprise application environments, the traditional RBAC model based on the role hierarchy has the following deficiencies: Firstly, it is unable to reflect the role relationships in complicated cases effectively, which does not accord with practical applications. Secondly, the senior role unconditionally inherits all permissions of the junior role, thus if a user is under the supervisor role, he may accumulate all permissions, and this easily causes the abuse of permission and violates the least privilege principle, which is one of the main security principles. To deal with these problems, we, after analyzing permission types and role relationships, proposed the concept of atom role and built an atom-role-based access control model, called ATRBAC, by dividing the permission set of each regular role based on inheritance path relationships. Through the application-specific analysis, this model can well meet the access control requirements.

  18. A geothermal resource data base: New Mexico

    SciTech Connect

    Witcher, J.C.

    1995-07-01

    This report provides a compilation of geothermal well and spring information in New Mexico up to 1993. Economically important geothermal direct-use development in New Mexico and the widespread use of personal computers (PC) in recent years attest to the need for an easily used and accessible data base of geothermal data in a digital format suitable for the PC. This report and data base are a part of a larger congressionally-funded national effort to encourage and assist geothermal direct-use. In 1991, the US Department of Energy, Geothermal Division (DOE/GD) began a Low Temperature Geothermal Resources and Technology Transfer Program. Phase 1 of this program includes updating the inventory of wells and springs of ten western states and placing these data into a digital format that is universally accessible to the PC. The Oregon Institute of Technology GeoHeat Center (OIT) administers the program and the University of Utah Earth Sciences and Resources Institute (ESRI) provides technical direction.

  19. Using Social Media to Increase Accessibility to Online Teaching Resources.

    PubMed

    O'Kelly, B; McHugh, S; McHugh, T; Fady, N; Boyle, E; Hill, A D K

    2015-09-01

    The key learning points of Surgical Grand Rounds (SGR) are often not accessible at times of exam revision for students. We sought to use Twitter as an online teaching repository. A SGR Twitter profile was created. 23 SGR presentations were made accessible on Twitter over a 3 month period. 93 students were invited to complete a questionnaire assessing usage of the repository. 84 (90%) in total responded, of these, 25 (80.6%) felt that the online provision of SGR through twitter was "useful". The majority (71%) felt that the online content was easily accessible. The novel use of social media is a useful adjunctive educational tool in accessing an online repository of SGR presentations. PMID:26485835

  20. Data access and interchange in agronomic and natural resources management

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Challenges related to agriculture and natural resource management have never been greater. Comprehensive agronomic and natural resources data relevant to climate change, food security, bioenergy, and sustainable water supply are rare and in demand. Data used for policy development must be rigorous...

  1. Success with Web-based image access.

    PubMed

    Harrison, Sean W

    2003-01-01

    The University of Mississippi Medical Center in Jackson, Miss., is the only medical school in the state. We performed 235,000 procedures in the 2001-02 fiscal year. All imaging services within the radiology department are networked to a PACS and are filmless. The elimination of film required that we decentralize our traditional file room to allow easy access to our radiology network across the campus. In our facility, there are three levels of image access: Diagnostic Quality, Review Quality and Web Access. Diagnostic Quality requires top-of-the-line workstations and monitors and is the most expensive. Review Quality workstations represent some savings over Diagnostic and are used in the ICU, orthopedics and surgery. Web Access appears to satisfy most areas outside the main diagnostic department. The account set-up procedure is simple because it uses our intranet email system. Images are easily pasted into presentation applications for articles and conferences. However, the main advantage of Web Access is the low cost. The downside of Web Access is that the images are for review only and are limited by the quality of the monitor in use. It is also somewhat cumbersome to retrieve old or comparison images via this method. The Web only holds approximately 45 days of the most recent images, therefore older studies may not be available. The deployment of this Web-based service has aided in our efforts to reduce the amount of film we print and has also been beneficial in improving patient care through faster service. PMID:12800563

  2. A University Center Leverages Resources and Provides Access

    ERIC Educational Resources Information Center

    Baus, Frederick

    2007-01-01

    A parade of people composed of young mothers, young professionals, middle-aged men and women and elder South Carolinians are marching across the parking lot into the former McAlister Square Mall. They have access to higher education because higher education has come to them--not in the form of a traditional campus but as the concrete realization…

  3. Centralized Library and Learning Resources: A Remote Access Demonstration Project.

    ERIC Educational Resources Information Center

    Shamel, Cynthia L.

    2001-01-01

    Describes a program instituted by a consortium of San Diego County (California) community colleges that provided distance learners with access to library reference services. States that the program included telephone, e-mail, and real time chat service and used an off-site, contract librarian. Reports on variable results. (Contains 8 references.)…

  4. Increasing access to Latin American social medicine resources: a preliminary report*

    PubMed Central

    Buchanan, Holly Shipp; Waitzkin, Howard; Eldredge, Jonathan; Davidson, Russ; Iriart, Celia; Teal, Janis

    2003-01-01

    Purpose: This preliminary report describes the development and implementation of a project to improve access to literature in Latin American social medicine (LASM). Methods: The University of New Mexico project team collaborated with participants from Argentina, Brazil, Chile, and Ecuador to identify approximately 400 articles and books in Latin American social medicine. Structured abstracts were prepared, translated into English, Spanish, and Portuguese, assigned Medical Subject Headings (MeSH), and loaded into a Web-based database for public searching. The project has initiated Web-based publication for two LASM journals. Evaluation included measures of use and content. Results: The LASM Website (http://hsc.unm.edu/lasm) and database create access to formerly little-known literature that addresses problems relevant to current medicine and public health. This Website offers a unique resource for researchers, practitioners, and teachers who seek to understand the links between socioeconomic conditions and health. The project provides a model for collaboration between librarians and health care providers. Challenges included procurement of primary material; preparation of concise abstracts; working with trilingual translations of abstracts, metadata, and indexing; and the work processes of the multidisciplinary team. Conclusions: The literature of Latin American social medicine has become more readily available to researchers worldwide. The LASM project serves as a collaborative model for the creation of sustainable solutions for disseminating information that is difficult to access through traditional methods. PMID:14566372

  5. The Azimuth Project: an Open-Access Educational Resource

    NASA Astrophysics Data System (ADS)

    Baez, J. C.

    2012-12-01

    The Azimuth Project is an online collaboration of scientists, engineers and programmers who are volunteering their time to do something about a wide range of environmental problems. The project has several aspects: 1) a wiki designed to make reliable, sourced information easy to find and accessible to a technically literate nonexperts, 2) a blog featuring expository articles and news items, 3) a project to write programs that explain basic concepts of climate physics and illustrate principles of good open-source software design, and 4) a project to develop mathematical tools for studying complex networked systems. We discuss the progress so far and some preliminary lessons. For example, enlisting the help of experts outside academia highlights the problems with pay-walled journals and the benefits of open access, as well as differences between how software development is done commercially, in the free software community, and in academe.

  6. 48 CFR 3004.470 - Security requirements for access to unclassified facilities, Information Technology resources...

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 7 2010-10-01 2010-10-01 false Security requirements for access to unclassified facilities, Information Technology resources, and sensitive information. 3004.470... Within Industry 3004.470 Security requirements for access to unclassified facilities,...

  7. Exploring the association between women's access to economic resources and intimate partner violence in Dar es Salaam and Mbeya, Tanzania.

    PubMed

    Vyas, Seema; Jansen, Henrica Afm; Heise, Lori; Mbwambo, Jessie

    2015-12-01

    The relationship between women's access to economic resources, e.g. employment or access to micro-credit, and experience of intimate partner violence is complex. Empirical evidence documents that in some settings women's employment is associated with higher risk of partner violence but in other settings with lower risk. Evidence also shows that these conflicting associations exist not only between countries but also within different country settings. Using two population-based data sets gathered in 2002 in contrasting Tanzania settings-Dar es Salaam and Mbeya-, we used multivariate logistic regression to examine the relationship between women's access to economic resources and partner violence. Two indicators of economic resources were examined: whether women earned money and whether women owned a business either with someone or exclusively. In Dar es Salaam we found evidence of a higher risk association among women who earned money and who owned a business exclusively by themselves and a lower risk association among women who owned a business with someone. We found no relationship between either indicator of economic resources and partner violence in Mbeya. Other factors were similarly associated with partner violence in both settings and the strongest associations found were related to the respondents' partners: refusal to give money; alcohol use and relationships with other women. The findings support the assertion that women's access to economic resources operate differently in different country settings, thus highlighting the need for targeted prevention efforts that are relevant for the context.

  8. Exploring the association between women's access to economic resources and intimate partner violence in Dar es Salaam and Mbeya, Tanzania.

    PubMed

    Vyas, Seema; Jansen, Henrica Afm; Heise, Lori; Mbwambo, Jessie

    2015-12-01

    The relationship between women's access to economic resources, e.g. employment or access to micro-credit, and experience of intimate partner violence is complex. Empirical evidence documents that in some settings women's employment is associated with higher risk of partner violence but in other settings with lower risk. Evidence also shows that these conflicting associations exist not only between countries but also within different country settings. Using two population-based data sets gathered in 2002 in contrasting Tanzania settings-Dar es Salaam and Mbeya-, we used multivariate logistic regression to examine the relationship between women's access to economic resources and partner violence. Two indicators of economic resources were examined: whether women earned money and whether women owned a business either with someone or exclusively. In Dar es Salaam we found evidence of a higher risk association among women who earned money and who owned a business exclusively by themselves and a lower risk association among women who owned a business with someone. We found no relationship between either indicator of economic resources and partner violence in Mbeya. Other factors were similarly associated with partner violence in both settings and the strongest associations found were related to the respondents' partners: refusal to give money; alcohol use and relationships with other women. The findings support the assertion that women's access to economic resources operate differently in different country settings, thus highlighting the need for targeted prevention efforts that are relevant for the context. PMID:26494417

  9. Technology for the Struggling Reader: Free and Easily Accessible Resources

    ERIC Educational Resources Information Center

    Berkeley, Sheri; Lindstrom, Jennifer H.

    2011-01-01

    A fundamental problem for many struggling readers, their parents, and their teachers is that there are few benchmarks to guide decision making about assistive technological supports when the nature of a disability is cognitive (e.g., specific learning disability, SLD) rather than physical. However, resources such as the National Center on…

  10. Female Intimate Partner Violence Survivors' Experiences with Accessing Resources

    ERIC Educational Resources Information Center

    McLeod, Amy L.; Hays, Danica G.; Chang, Catherine Y.

    2010-01-01

    This phenomenological study investigates the types of personal and community resources that female intimate partner violence (IPV) survivors used when leaving an abusive male partner. Three African American and 2 European American IPV survivors, ages 24 to 38 years, described positive and negative experiences with social support, personal…

  11. 28 CFR 16.92 - Exemption of Environment and Natural Resources Division Systems-limited access.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 28 Judicial Administration 1 2014-07-01 2014-07-01 false Exemption of Environment and Natural....92 Exemption of Environment and Natural Resources Division Systems—limited access. (a)(1) The...) Environment and Natural Resources Division Case and Related Files System, JUSTICE/ENRD-003. (ii) (2)...

  12. 28 CFR 16.92 - Exemption of Environment and Natural Resources Division Systems-limited access.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 28 Judicial Administration 1 2012-07-01 2012-07-01 false Exemption of Environment and Natural....92 Exemption of Environment and Natural Resources Division Systems—limited access. (a)(1) The...) Environment and Natural Resources Division Case and Related Files System, JUSTICE/ENRD-003. (ii) (2)...

  13. 28 CFR 16.92 - Exemption of Environment and Natural Resources Division Systems-limited access.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 28 Judicial Administration 1 2010-07-01 2010-07-01 false Exemption of Environment and Natural....92 Exemption of Environment and Natural Resources Division Systems—limited access. (a)(1) The...) Environment and Natural Resources Division Case and Related Files System, JUSTICE/ENRD-003. (ii) (2)...

  14. 28 CFR 16.92 - Exemption of Environment and Natural Resources Division Systems-limited access.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 28 Judicial Administration 1 2011-07-01 2011-07-01 false Exemption of Environment and Natural....92 Exemption of Environment and Natural Resources Division Systems—limited access. (a)(1) The...) Environment and Natural Resources Division Case and Related Files System, JUSTICE/ENRD-003. (ii) (2)...

  15. Project CREATE Final Report. Cooperative Resources To Enhance Access to Technology Education.

    ERIC Educational Resources Information Center

    Hampden County Employment and Training Consortium, Springfield, MA.

    These materials have been developed by Project CREATE (Cooperative Resources to Enhance Access to Jobs through Technical Education), a demonstration program designed to develop a network, specific activities, and resources that would provide education and support services to a wide audience. A 13-page final report describes the hands-on training…

  16. Development of a statistically based access delay timeline methodology.

    SciTech Connect

    Rivera, W. Gary; Robinson, David Gerald; Wyss, Gregory Dane; Hendrickson, Stacey M. Langfitt

    2013-02-01

    The charter for adversarial delay is to hinder access to critical resources through the use of physical systems increasing an adversarys task time. The traditional method for characterizing access delay has been a simple model focused on accumulating times required to complete each task with little regard to uncertainty, complexity, or decreased efficiency associated with multiple sequential tasks or stress. The delay associated with any given barrier or path is further discounted to worst-case, and often unrealistic, times based on a high-level adversary, resulting in a highly conservative calculation of total delay. This leads to delay systems that require significant funding and personnel resources in order to defend against the assumed threat, which for many sites and applications becomes cost prohibitive. A new methodology has been developed that considers the uncertainties inherent in the problem to develop a realistic timeline distribution for a given adversary path. This new methodology incorporates advanced Bayesian statistical theory and methodologies, taking into account small sample size, expert judgment, human factors and threat uncertainty. The result is an algorithm that can calculate a probability distribution function of delay times directly related to system risk. Through further analysis, the access delay analyst or end user can use the results in making informed decisions while weighing benefits against risks, ultimately resulting in greater system effectiveness with lower cost.

  17. Situation-Based Access Control: privacy management via modeling of patient data access scenarios.

    PubMed

    Peleg, Mor; Beimel, Dizza; Dori, Dov; Denekamp, Yaron

    2008-12-01

    Access control is a central problem in privacy management. A common practice in controlling access to sensitive data, such as electronic health records (EHRs), is Role-Based Access Control (RBAC). RBAC is limited as it does not account for the circumstances under which access to sensitive data is requested. Following a qualitative study that elicited access scenarios, we used Object-Process Methodology to structure the scenarios and conceive a Situation-Based Access Control (SitBAC) model. SitBAC is a conceptual model, which defines scenarios where patient's data access is permitted or denied. The main concept underlying this model is the Situation Schema, which is a pattern consisting of the entities Data-Requestor, Patient, EHR, Access Task, Legal-Authorization, and Response, along with their properties and relations. The various data access scenarios are expressed via Situation Instances. While we focus on the medical domain, the model is generic and can be adapted to other domains.

  18. Access and management of HIV-related diseases in resource-constrained settings: a workshop report.

    PubMed

    Dimba, Eao; Yengopal, V; Joshua, E; Thavarajah, R; Balasundaram, S

    2016-04-01

    With advancement of medical interventions, the lifespan of people living with HIV has increased globally. However, low- and middle-income countries (LMICs) which bear the greatest burden of the HIV pandemic face a constant challenge in addressing the treatment needs of immune-suppressed patients. An analysis of the current management protocols and access to medication in resource-poor settings was conducted at this workshop, with emphasis on the situation in resource-poor settings. The participants developed a consensus document based on the need to respond to the constantly changing HIV pandemic. Provision of oral health care must be guided by interconnecting principles based on population based strategies that address upstream determinants of health. Basic oral health coverage in developing countries can only be realized with a strong foundation at the primary health level. Early diagnosis of HIV-related comorbidities including the adverse effects of ARVs is essential for the improvement of treatment outcomes. Standardization of oral health care delivery mechanisms will facilitate evaluation at national and regional levels. Oral health care workers have a moral obligation to participate in sustained campaigns to reduce the social stigma associated with HIV/AIDS in their work places at every stage of the referral chain. Future research also needs to realign itself towards prevention using the common risk factor approach, which has a broader impact on non-communicable diseases, which are increasingly affecting patients with HIV/AIDS as their life expectancies increase. PMID:27109288

  19. Proximity-based access control for context-sensitive information provision in SOA-based systems

    NASA Astrophysics Data System (ADS)

    Rajappan, Gowri; Wang, Xiaofei; Grant, Robert; Paulini, Matthew

    2014-06-01

    Service Oriented Architecture (SOA) has enabled open-architecture integration of applications within an enterprise. For net-centric Command and Control (C2), this elucidates information sharing between applications and users, a critical requirement for mission success. The Information Technology (IT) access control schemes, which arbitrate who gets access to what information, do not yet have the contextual knowledge to dynamically allow this information sharing to happen dynamically. The access control might prevent legitimate users from accessing information relevant to the current mission context, since this context may be very different from the context for which the access privileges were configured. We evaluate a pair of data relevance measures - proximity and risk - and use these as the basis of dynamic access control. Proximity is a measure of the strength of connection between the user and the resource. However, proximity is not sufficient, since some data might have a negative impact, if leaked, which far outweighs importance to the subject's mission. For this, we use a risk measure to quantify the downside of data compromise. Given these contextual measures of proximity and risk, we investigate extending Attribute-Based Access Control (ABAC), which is used by the Department of Defense, and Role-Based Access Control (RBAC), which is widely used in the civilian market, so that these standards-based access control models are given contextual knowledge to enable dynamic information sharing. Furthermore, we consider the use of such a contextual access control scheme in a SOA-based environment, in particular for net-centric C2.

  20. Access and use of information resources in assessing health risks from chemical exposure: Proceedings

    SciTech Connect

    Not Available

    1990-12-31

    Health risk assessment is based on access to comprehensive information about potentially hazardous agents in question. Relevant information is scattered throughout the literature, and often is not readily accessible. To be useful in assessment efforts, emerging scientific findings, risk assess parameters, and associated data must be compiled and evaluated systemically. The US Environmental Protection Agency (EPA) and Oak Ridge National Laboratory (ORNL) are among the federal agencies heavily involved in this effort. This symposium was a direct response by EPA and ORNL to the expressed needs of individuals involved in assessing risks from chemical exposure. In an effort to examine the state of the risk assessment process, the availability of toxicological information, and the future development and transfer of this information, the symposium provided an excellent cadre of speakers and participants from state and federal agencies, academia and research laboratories to address these topics. This stimulating and productive gathering discussed concerns associated with (1) environmental contamination by chemicals; (2) laws regulating chemicals; (3) information needs and resources; (4) applications; (5) challenges and priorities; and (6)future issues. Individual reports are processed separately for the data bases.

  1. Accessing space: A catalogue of process, equipment and resources for commercial users

    NASA Technical Reports Server (NTRS)

    1988-01-01

    This catalogue, produced by NASA's Office of Commercial Programs, provides a broad source of information for the commercial developer interested in the areas of microgravity research and remote sensing. Methods for accessing space for research are reviewed including the shuttle, expendable launch vehicles, suborbital sounding rockets, experimental aircraft, and drop towers and other ground-based facilities. Procedures for using these vehicles and facilities are described along with funding options to pay for their use. Experiment apparatus and carriers for microgravity research are also described. A separate directory of resources and services is also included which contains a listing of transportation products and services, a listing of businesses and industries which provide space-related services and products, and a listing of the NASA and CCDS (Center for the Commercial Development of Space) points of contact.

  2. Context-Based E-Health System Access Control Mechanism

    NASA Astrophysics Data System (ADS)

    Al-Neyadi, Fahed; Abawajy, Jemal H.

    E-Health systems logically demand a sufficiently fine-grained authorization policy for access control. The access to medical information should not be just role-based but should also include the contextual condition of the role to access data. In this paper, we present a mechanism to extend the standard role-based access control to incorporate contextual information for making access control decisions in e-health application. We present an architecture consisting of authorisation and context infrastructure that work cooperatively to grant access rights based on context-aware authorization policies and context information.

  3. Food Security and Women's Access to Natural Resources workshop; a brief report.

    PubMed

    1997-01-01

    This article describes the workshop on Food Security and Women's Access to Natural Resources, held in January 1997 in Mumbai, India. The workshop was organized jointly by the Tata Institute of Social Sciences and the Indian Association of Women's Studies. The aim was to examine the food security situation in Maharashtra and Gujarat states in the west, the initiative to build alternative institutions, legal changes augmenting industrialization, and how traditional rights to common property resources can be legalized and how the poor can have access to new resources. The workshop organizers were unable to obtain experts on some topics. Core discussion centered on changes in industrialization, natural resources, gender and food security; access to natural resources and poverty alleviation programs; initiatives to create food security; and laws related to access to land and water. Discussions revealed the alienation of small and marginal farmers, landless laborers, and artisans from their livelihoods and survival strategies for these disenfranchised groups. The design of drought eradication and water conservation programs did not permit women and men working at construction sites to have access to the program assets. Case studies revealed situations in which women won the right of access to community water and then negotiated for land in lease. The women used landowners to negotiate credit and access development program assets, but normal channels of the National Bank of Agricultural Research and Development could have provided these benefits. Participants discussed how governments can be held accountable and how public funds could be used to revamp poverty alleviation and asset creation programs. All agreed that macrolevel development should give priority to agricultural development and legal constraints or problems. Five follow-up activities are identified.

  4. Concurrency and Time in Role-Based Access Control

    NASA Astrophysics Data System (ADS)

    Chiang, Chia-Chu; Bayrak, Coskun

    Role-based access control (RBAC) has been proposed as an alternative solution for expressing access control policies. The generalized temporal RBAC (GTRBAC) extends RBAC by adding time in order to support timed based access control policies. However, GTRBAC does not address certain issues of concurrency such as, synchronization. We propose an approach to the expressions of time and concurrency in RBAC based on timed Petri nets. A formal verification method for access control policies is also proposed.

  5. Understanding and Supporting Web Developers: Design and Evaluation of a Web Accessibility Information Resource (WebAIR).

    PubMed

    Swallow, David; Petrie, Helen; Power, Christopher

    2016-01-01

    This paper describes the design and evaluation of a Web Accessibility Information Resource (WebAIR) for supporting web developers to create and evaluate accessible websites. WebAIR was designed with web developers in mind, recognising their current working practices and acknowledging their existing understanding of web accessibility. We conducted an evaluation with 32 professional web developers in which they used either WebAIR or an existing accessibility information resource, the Web Content Accessibility Guidelines, to identify accessibility problems. The findings indicate that several design decisions made in relation to the language, organisation, and volume of WebAIR were effective in supporting web developers to undertake web accessibility evaluations.

  6. UMLS-based access to CPR data.

    PubMed

    van Mulligen, E M

    1998-01-01

    This paper describes the results of a project that explores the use the Unified Medical Language System (UMLS) for knowledge-driven tasks, such as browsing a computer-based patient record (CPR). The project consisted of a number of steps: the mapping between CPR terms and UMLS concepts, the development of an algorithm that explores the CPR data using this mapping, and the implementation of a first prototype browser that visualizes "found" data. A second task addressed in this project has been the direct access to online medical literature (MEDLINE) using the UMLS concepts found in the CPR data. In this project, we used a preliminary version of the Open Records for Patient Care (ORCA) CPR that consisted only of the history and physical examination data of patient suffering from heart failure. PMID:10384441

  7. Cultural Health Capital on the margins: Cultural resources for navigating healthcare in communities with limited access.

    PubMed

    Madden, Erin Fanning

    2015-05-01

    Communities struggling with access to healthcare in the U.S. are often considered to be disadvantaged and lacking in resources. Yet, these communities develop and nurture valuable strategies for healthcare access that are underrecognized by health scholars. Combining medical sociology and critical race theory perspectives on cultural capital, this paper examines the health-relevant cultural resources, or Cultural Health Capital, in South Texas Mexican American border communities. Ethnographic data collected during 2011-2013 in Cameron and Hidalgo counties on the U.S.-Mexico border provide empirical evidence for expanding existing notions of health-relevant cultural capital. These Mexican American communities use a range of cultural resources to manage healthcare exclusion and negotiate care in alternative healthcare spaces like community clinics, flea markets and Mexican pharmacies. Navigational, social, familial, and linguistic skills and knowledge are used to access doctors and prescription drugs in these spaces despite social barriers to mainstream healthcare (e.g. cost, English language skills, etc.). Cultural capital used in marginalized communities to navigate limited healthcare options may not always fully counteract healthcare exclusion. Nevertheless, recognizing the cultural resources used in Mexican American communities to facilitate healthcare challenges deficit views and yields important findings for policymakers, healthcare providers, and advocates seeking to capitalize on community resources to improve healthcare access.

  8. POPcorn: An Online Resource Providing Access to Distributed and Diverse Maize Project Data

    PubMed Central

    Cannon, Ethalinda K. S.; Birkett, Scott M.; Braun, Bremen L.; Kodavali, Sateesh; Jennewein, Douglas M.; Yilmaz, Alper; Antonescu, Valentin; Antonescu, Corina; Harper, Lisa C.; Gardiner, Jack M.; Schaeffer, Mary L.; Campbell, Darwin A.; Andorf, Carson M.; Andorf, Destri; Lisch, Damon; Koch, Karen E.; McCarty, Donald R.; Quackenbush, John; Grotewold, Erich; Lushbough, Carol M.; Sen, Taner Z.; Lawrence, Carolyn J.

    2011-01-01

    The purpose of the online resource presented here, POPcorn (Project Portal for corn), is to enhance accessibility of maize genetic and genomic resources for plant biologists. Currently, many online locations are difficult to find, some are best searched independently, and individual project websites often degrade over time—sometimes disappearing entirely. The POPcorn site makes available (1) a centralized, web-accessible resource to search and browse descriptions of ongoing maize genomics projects, (2) a single, stand-alone tool that uses web Services and minimal data warehousing to search for sequence matches in online resources of diverse offsite projects, and (3) a set of tools that enables researchers to migrate their data to the long-term model organism database for maize genetic and genomic information: MaizeGDB. Examples demonstrating POPcorn's utility are provided herein. PMID:22253616

  9. One and done? Equality of opportunity and repeated access to scarce, indivisible medical resources

    PubMed Central

    2012-01-01

    Background Existing ethical guidelines recommend that, all else equal, past receipt of a medical resource (e.g. a scarce organ) should not be considered in current allocation decisions (e.g. a repeat transplantation). Discussion One stated reason for this ethical consensus is that formal theories of ethics and justice do not persuasively accept or reject repeated access to the same medical resources. Another is that restricting attention to past receipt of a particular medical resource seems arbitrary: why couldn’t one just as well, it is argued, consider receipt of other goods such as income or education? In consequence, simple allocation by lottery or first-come-first-served without consideration of any past receipt is thought to best afford equal opportunity, conditional on equal medical need. There are three issues with this view that need to be addressed. First, public views and patient preferences are less ambiguous than formal theories of ethics. Empirical work shows strong preferences for fairness in health care that have not been taken into account: repeated access to resources has been perceived as unfair. Second, while difficult to consider receipt of many other prior resources including non-medical resources, this should not be used a motive for ignoring the receipt of any and all goods including the focal resource in question. Third, when all claimants to a scarce resource are equally deserving, then use of random allocation seems warranted. However, the converse is not true: mere use of a randomizer does not by itself make the merits of all claimants equal. Summary My conclusion is that not ignoring prior receipt of the same medical resource, and prioritizing those who have not previously had access to the medical resource in question, may be perceived as fairer and more equitable by society. PMID:22624597

  10. Open-access databases as unprecedented resources and drivers of cultural change in fisheries science

    SciTech Connect

    McManamay, Ryan A; Utz, Ryan

    2014-01-01

    Open-access databases with utility in fisheries science have grown exponentially in quantity and scope over the past decade, with profound impacts to our discipline. The management, distillation, and sharing of an exponentially growing stream of open-access data represents several fundamental challenges in fisheries science. Many of the currently available open-access resources may not be universally known among fisheries scientists. We therefore introduce many national- and global-scale open-access databases with applications in fisheries science and provide an example of how they can be harnessed to perform valuable analyses without additional field efforts. We also discuss how the development, maintenance, and utilization of open-access data are likely to pose technical, financial, and educational challenges to fisheries scientists. Such cultural implications that will coincide with the rapidly increasing availability of free data should compel the American Fisheries Society to actively address these problems now to help ease the forthcoming cultural transition.

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

    PubMed

    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.

  12. Group Membership Based Authorization to CADC Resources

    NASA Astrophysics Data System (ADS)

    Damian, A.; Dowler, P.; Gaudet, S.; Hill, N.

    2012-09-01

    The Group Membership Service (GMS), implemented at the Canadian Astronomy Data Centre (CADC), is a prototype of what could eventually be an IVOA standard for a distributed and interoperable group membership protocol. Group membership is the core authorization concept that enables teamwork and collaboration amongst astronomers accessing distributed resources and services. The service integrates and complements other access control related IVOA standards such as single-sign-on (SSO) using X.509 proxy certificates and the Credential Delegation Protocol (CDP). The GMS has been used at CADC for several years now, initially as a subsystem and then as a stand-alone Web service. It is part of the authorization mechanism for controlling the access to restricted Web resources as well as the VOSpace service hosted by the CADC. We present the role that GMS plays within the access control system at the CADC, including the functionality of the service and how the different CADC services make use of it to assert user authorization to resources. We also describe the main advantages and challenges of using the service as well as future work to increase its robustness and functionality.

  13. Modeling mandatory access control in role-based security systems

    SciTech Connect

    Nyanchama, M.; Osborn, S.

    1996-12-31

    This paper discusses the realization of mandatory access control in role-based protection systems. Starting from the basic definitions of roles, their application in security and the basics of the concept of mandatory access control, we develop a scheme of role-based protection that realizes mandatory access control. The basis of this formulation develops from the recognition that roles can be seen as facilitating access to some given information context. By handling each of the role contexts as independent security levels of information, we simulate mandatory access by imposing the requirements of mandatory access control. Among the key considerations, we propose a means of taming Trojan horses by imposing acyclic information flow among contexts in role-based protection systems. The acyclic information flows and suitable access rules incorporate secrecy which is an essential component of mandatory access control.

  14. The Role of Open Access and Open Educational Resources: A Distance Learning Perspective

    ERIC Educational Resources Information Center

    Hatzipanagos, Stylianos; Gregson, Jon

    2015-01-01

    The paper explores the role of Open Access (in licensing, publishing and sharing research data) and Open Educational Resources within Distance Education, with a focus on the context of the University of London International Programmes. We report on a case study where data were gathered from librarians and programme directors relating to existing…

  15. Internet-Accessible Scholarly Resources for the Humanities and Social Sciences.

    ERIC Educational Resources Information Center

    ACLS Newsletter, 1997

    1997-01-01

    This newsletter focuses on the presentations of a program session on Internet-accessible scholarly resources, held at the 1996 ACLS Annual Meeting. Articles in the newsletter include: "Building the Scene: Words, Images, Data, and Beyond" (David Green); "Electronic Texts: The Promise and the Reality" (Susan Hockey); "Images on the Internet: Issues…

  16. Process for selecting NEAMS applications for access to Idaho National Laboratory high performance computing resources

    SciTech Connect

    Michael Pernice

    2010-09-01

    INL has agreed to provide participants in the Nuclear Energy Advanced Mod- eling and Simulation (NEAMS) program with access to its high performance computing (HPC) resources under sponsorship of the Enabling Computational Technologies (ECT) program element. This report documents the process used to select applications and the software stack in place at INL.

  17. 48 CFR 1352.237-73 - Foreign national visitor and guest access to departmental resources.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... resources. As prescribed in 48 CFR 1337.110-70 (e), insert the following clause: Foreign National Visitor... Regulations System DEPARTMENT OF COMMERCE CLAUSES AND FORMS SOLICITATION PROVISIONS AND CONTRACT CLAUSES Text... provide the Government with notice of foreign nationals requiring access to any Department of...

  18. Privileged Access, Privileged Accounts: Toward a Socially Structured Theory of Resources and Discourses

    ERIC Educational Resources Information Center

    Freudenburg, William R.

    2005-01-01

    Environmental harms involve a "double diversion"--two forms of privilege that deserve greater attention. The first involves disproportionality, or the privileged diversion of rights/resources: Contrary to common assumptions, much environmental damage is not economically "necessary"--instead, it represents privileged access to the environment. It…

  19. Web Accessibility and Usability of the Homepages from Academy of Human Resource Development Members' Institutions

    ERIC Educational Resources Information Center

    Zeng, Xiaoming; Sligar, Steven R.

    2008-01-01

    Human resource development programs in various institutions communicate with their constituencies including persons with disabilities through websites. Web sites need to be accessible for legal, economic and ethical reasons. We used an automated web usability evaluation tool, aDesigner, to evaluate 205 home pages from the organizations of AHRD…

  20. Hacking Blackboard: Customizing Access to Library Resources through the Blackboard Course Management System

    ERIC Educational Resources Information Center

    Kellam, Lynda M.; Cox, Richard; Winkler, Hannah

    2009-01-01

    Academic libraries have long been trying to gain access to users through their favorite online spaces, such as social networking sites. In this article a project of the University of North Carolina at Greensboro's University Libraries, which integrated library resources with the campus course management system, Blackboard, is detailed. The main…

  1. Access to Corporate Information Systems: Datafiles, Classified Documents, and Information Resources.

    ERIC Educational Resources Information Center

    Baumgartner, Kurt O.; And Others

    1988-01-01

    Three articles discuss aspects of corporate information systems: (1) "Packet Switching Networks: Worldwide Access to Corporate Datafiles" (Kurt O. Baumgartner); "Classified Documents in the Corporate Library" (Patricia M. Shores); and "From Library to Information Center: Case Studies in the Evolution of Corporate Information Resources" (Eva M.…

  2. The Use of Passwords for Controlled Access to Computer Resources. Computer Science & Technology.

    ERIC Educational Resources Information Center

    Wood, Helen M.

    This paper considers the generation of passwords and their effective application to the problem of controlling access to computer resources. After describing the need for and uses of passwords, password schemes are categorized according to selection technique, lifetime, physical characteristics, and information content. Password protection, both…

  3. The Open Course Library: Using Open Educational Resources to Improve Community College Access

    ERIC Educational Resources Information Center

    Goodwin, Mary Ann Lund

    2011-01-01

    Community colleges are committed to meeting the educational needs of the communities they serve and they have increased access to higher education by offering new and innovative services to students often unable to attend traditional baccalaureate institutions. An innovation known as Open Educational Resources (OER) promises to make college more…

  4. Resource Discovery and Universal Access: Understanding Enablers and Barriers from the User Perspective.

    PubMed

    Beyene, Wondwossen Mulualem

    2016-01-01

    Resource discovery tools are the keys to explore, find, and retrieve resources from multitudes of collections hosted by library and information systems. Modern resource discovery tools provide facet-rich interfaces that provide multiple alternatives to expose resources for their potential users and help them navigate to the resources they need. This paper examines one of those tools from the perspective of universal access, utilizing the experience of users with print disability. It aimed at exploring the way print disabled users use library search tools, the barriers they might face in the process, and what needs to be considered in order to implement discovery tools that incorporate the needs of users with print disability. Interviews that involved user testing were made with selected group of users. The data obtained in the process was analyzed and compared against the existing body of knowledge to forward design recommendations for future endeavors. PMID:27534350

  5. Outcome-based Carbon Sequestration Resource Assessment

    NASA Astrophysics Data System (ADS)

    Sundquist, E. T.; Jain, A. K.

    2015-12-01

    Opportunities for carbon sequestration are an important consideration in developing policies to manage the mass balance of atmospheric carbon dioxide (CO2). Assessments of potential carbon sequestration, like other resource assessments, should be widely accepted within the scientific community and broadly applicable to public needs over a range of spatial and temporal scales. The essential public concern regarding all forms of carbon sequestration is their effectiveness in offsetting CO2 emissions. But the diverse forms and mechanisms of potential sequestration are reflected in diverse assessment methodologies that are very difficult for decision-makers to compare and apply to comprehensive carbon management. For example, assessments of potential geologic sequestration are focused on total capacities derived from probabilistic analyses of rock strata, while assessments of potential biologic sequestration are focused on annual rates calculated using biogeochemical models. Non-specialists cannot readily compare and apply such dissimilar estimates of carbon storage. To address these problems, assessment methodologies should not only tabulate rates and capacities of carbon storage, but also enable comparison of the time-dependent effects of various sequestration activities on the mitigation of increasing atmospheric CO2. This outcome-based approach requires consideration of the sustainability of the assessed carbon storage, as well as the response of carbon-cycle feedbacks. Global models can be used to compare atmospheric CO2 trajectories implied by alternative global sequestration strategies, but such simulations may not be accessible or useful in many decision settings. Simplified assessment metrics, such as ratios using impulse response functions, show some promise in providing comparisons of CO2 mitigation that are broadly useful while minimizing sensitivity to differences in global models and emissions scenarios. Continued improvements will require close

  6. Cryptographic Enforcement of Role-Based Access Control

    NASA Astrophysics Data System (ADS)

    Crampton, Jason

    Many cryptographic schemes have been designed to enforce information flow policies. However, enterprise security requirements are often better encoded, or can only be encoded, using role-based access control policies rather than information flow policies. In this paper, we provide an alternative formulation of role-based access control that enables us to apply existing cryptographic schemes to core and hierarchical role-based access control policies. We then show that special cases of our cryptographic enforcement schemes for role-based access control are equivalent to cryptographic enforcement schemes for temporal access control and to ciphertext-policy and key-policy attribute-based encryption schemes. Finally, we describe how these special cases can be extended to support richer forms of temporal access control and attribute-based encryption.

  7. A contextual role-based access control authorization model for electronic patient record.

    PubMed

    Motta, Gustavo H M B; Furuie, Sergio S

    2003-09-01

    The design of proper models for authorization and access control for electronic patient record (EPR) is essential to a wide scale use of EPR in large health organizations. In this paper, we propose a contextual role-based access control authorization model aiming to increase the patient privacy and the confidentiality of patient data, whereas being flexible enough to consider specific cases. This model regulates user's access to EPR based on organizational roles. It supports a role-tree hierarchy with authorization inheritance; positive and negative authorizations; static and dynamic separation of duties based on weak and strong role conflicts. Contextual authorizations use environmental information available at access time, like user/patient relationship, in order to decide whether a user is allowed to access an EPR resource. This enables the specification of a more flexible and precise authorization policy, where permission is granted or denied according to the right and the need of the user to carry out a particular job function.

  8. Reducing Clinical Trial Monitoring Resource Allocation and Costs Through Remote Access to Electronic Medical Records

    PubMed Central

    Uren, Shannon C.; Kirkman, Mitchell B.; Dalton, Brad S.; Zalcberg, John R.

    2013-01-01

    Purpose: With electronic medical records (eMRs), the option now exists for clinical trial monitors to perform source data verification (SDV) remotely. We report on a feasibility study of remote access to eMRs for SDV and the potential advantages of such a process in terms of resource allocation and cost. Methods: The Clinical Trials Unit at the Peter MacCallum Cancer Centre, in collaboration with Novartis Pharmaceuticals Australia, conducted a 6-month feasibility study of remote SDV. A Novartis monitor was granted dedicated software and restricted remote access to the eMR portal of the cancer center, thereby providing an avenue through which perform SDV. Results: Six monitoring visits were conducted during the study period, four of which were performed remotely. The ability to conduct two thirds of the monitoring visits remotely in this complex phase III study resulted in an overall cost saving to Novartis. Similarly, remote monitoring eased the strain on internal resources, particularly monitoring space and hospital computer terminal access, at the cancer center. Conclusion: Remote access to patient eMRs for SDV is feasible and is potentially an avenue through which resources can be more efficiently used. Although this feasibility study involved limited numbers, there is no limit to scaling these processes to any number of patients enrolled onto large clinical trials. PMID:23633977

  9. Risk buffering and resource access shape valuation of out-group strangers

    PubMed Central

    Pisor, Anne C.; Gurven, Michael

    2016-01-01

    Unlike other primates, humans exhibit extensive inter-group tolerance and frequently build relationships with out-group members. Despite its common occurrence, little is known about the conditions leading to out-group relationship building in humans. What are the social and ecological factors promoting valuation of out-group members as potential social partners? Do they differ from those promoting valuation of in-group members? We propose that opportunities for non-local resource access and resource buffering, crucial in the human foraging niche, will increase valuation of out-group strangers. Using survey and experimental data collected among three Bolivian horticultural populations, we find that individuals with fewer non-locally available resources and more information about out-groups demonstrate more generosity toward out-group strangers, but not in-group strangers. The effects are specific to subjective resource access, not objective measures of access, and out-group exposure, not stereotypes. Further, depending on the measure, existing network connections affect both out-group and in-group giving, suggesting that new partnerships from both in-groups and out-groups may bolster one’s networks. Our results illustrate how evolved human psychology is sensitive to the costs and benefits of both out-group and in-group relationships, but underscore that the social and ecological factors favoring new relationships with in-group versus out-group strangers may differ. PMID:27470126

  10. Risk buffering and resource access shape valuation of out-group strangers.

    PubMed

    Pisor, Anne C; Gurven, Michael

    2016-01-01

    Unlike other primates, humans exhibit extensive inter-group tolerance and frequently build relationships with out-group members. Despite its common occurrence, little is known about the conditions leading to out-group relationship building in humans. What are the social and ecological factors promoting valuation of out-group members as potential social partners? Do they differ from those promoting valuation of in-group members? We propose that opportunities for non-local resource access and resource buffering, crucial in the human foraging niche, will increase valuation of out-group strangers. Using survey and experimental data collected among three Bolivian horticultural populations, we find that individuals with fewer non-locally available resources and more information about out-groups demonstrate more generosity toward out-group strangers, but not in-group strangers. The effects are specific to subjective resource access, not objective measures of access, and out-group exposure, not stereotypes. Further, depending on the measure, existing network connections affect both out-group and in-group giving, suggesting that new partnerships from both in-groups and out-groups may bolster one's networks. Our results illustrate how evolved human psychology is sensitive to the costs and benefits of both out-group and in-group relationships, but underscore that the social and ecological factors favoring new relationships with in-group versus out-group strangers may differ. PMID:27470126

  11. Accessing and managing open medical resources in Africa over the Internet

    NASA Astrophysics Data System (ADS)

    Hussein, Rada; Khalifa, Aly; Jimenez-Castellanos, Ana; de la Calle, Guillermo; Ramirez-Robles, Maximo; Crespo, Jose; Perez-Rey, David; Garcia-Remesal, Miguel; Anguita, Alberto; Alonso-Calvo, Raul; de la Iglesia, Diana; Barreiro, Jose M.; Maojo, Victor

    2014-10-01

    Recent commentaries have proposed the advantages of using open exchange of data and informatics resources for improving health-related policies and patient care in Africa. Yet, in many African regions, both private medical and public health information systems are still unaffordable. Open exchange over the social Web 2.0 could encourage more altruistic support of medical initiatives. We have carried out some experiments to demonstrate the feasibility of using this approach to disseminate open data and informatics resources in Africa. After the experiments we developed the AFRICA BUILD Portal, the first Social Network for African biomedical researchers. Through the AFRICA BUILD Portal users can access in a transparent way to several resources. Currently, over 600 researchers are using distributed and open resources through this platform committed to low connections.

  12. Exploration and Description of Faith-Based Health Resources: Findings Inform Advancing Holistic Health Care.

    PubMed

    Dyess, Susan MacLeod

    2015-01-01

    It is important to use all holistic resource opportunities in communities, such as integrative healing centers, and mind-body-spirit approaches to health. These holistic approaches may be realized through nontraditional avenues, such as faith-based resources. This article reports on an exploratory study that describes faith-based resources supporting holistic health in a southeastern region of the United States. A working definition for "faith-based health resources" was "ecumenical and interfaith community-based, open-access health resources that include in mission for service a reference to faith." Excluded from the definition were institutional services from hospitals, focused social services from area agencies, and federally funded services.

  13. Viral hepatitis in resource-limited countries and access to antiviral therapies: current and future challenges

    PubMed Central

    Lemoine, Maud; Nayagam, Shevanthi; Thursz, Mark

    2013-01-01

    Chronic viral hepatitis is a major public health issue worldwide and mostly affects resource-limited countries. These regions combine a considerable set of barriers to containing the epidemic, including shortage of healthcare workers, poor medical infrastructures, insufficient screening and poor access to care and treatment. At a time when morbidity and mortality of chronic liver disease has been widely improved in wealthy countries by new innovative strategies and potent antiviral drugs, it is now urgent to face the challenges of better management of chronic hepatitis in resource-poor countries from the perspectives of global health and social justice. PMID:23662157

  14. sIR: siRNA Information Resource, a web-based tool for siRNA sequence design and analysis and an open access siRNA database

    PubMed Central

    Shah, Jyoti K; Garner, Harold R; White, Michael A; Shames, David S; Minna, John D

    2007-01-01

    Background RNA interference has revolutionized our ability to study the effects of altering the expression of single genes in mammalian (and other) cells through targeted knockdown of gene expression. In this report we describe a web-based computational tool, siRNA Information Resource (sIR), which consists of a new open source database that contains validation information about published siRNA sequences and also provides a user-friendly interface to design and analyze siRNA sequences against a chosen target sequence. Results The siRNA design tool described in this paper employs empirically determined rules derived from a meta-analysis of the published data; it uses a weighted scoring system that determines the optimal sequence within a target mRNA and thus aids in the rational selection of siRNA sequences. This scoring system shows a non-linear correlation with the knockdown efficiency of siRNAs. sIR provides a fast, customized BLAST output for all selected siRNA sequences against a variety of databases so that the user can verify the uniqueness of the design. We have pre-designed siRNAs for all the known human genes (24,502) in the Refseq database. These siRNAs were pre-BLASTed against the human Unigene database to estimate the target specificity and all results are available online. Conclusion Although most of the rules for this scoring system were influenced by previously published rules, the weighted scoring system provides better flexibility in designing an appropriate siRNA when compared to the un-weighted scoring system. sIR is not only a comprehensive tool used to design siRNA sequences and lookup pre-designed siRNAs, but it is also a platform where researchers can share information on siRNA design and use. PMID:17540034

  15. Market access of cancer drugs in European countries: improving resource allocation.

    PubMed

    Pauwels, Kim; Huys, Isabelle; Casteels, Minne; De Nys, Katelijne; Simoens, Steven

    2014-06-01

    Public health systems need to make well-founded choices in order to distribute their scarce resources in the most efficient way. Given the number of cancer patients, public/private investments in oncology research, the growing number of new anti-cancer agents and consequent budget impact of cancer care, market access of cancer drugs has become delicate over the last decade. Furthermore, decision makers are challenged by ethical objections and endeavour to provide fair and equal access to treatments for cancer patients. The aim of this study is to generate an overview of market access procedures for cancer drugs in eight European countries and formulate advice for improvement of resource allocation. Results are obtained through a literature review and a qualitative questionnaire and validated by experts with proven knowledge about procedures for price setting and reimbursement of drugs. Diverse measures are applied in the studied countries to optimize reimbursement of cancer drugs such as adjusted cost-effectiveness threshold, regulations for off-label use and new market access agreements. Additionally, innovative cancer drugs are excluded from explicit cost control measures such as payback of budget excess by pharmaceutical companies and lump-sum payments per diagnostic related groups (DRG) in the hospital. The results suggest that cancer is prioritized above other disease areas. Further research is necessary to address the question if society attaches higher value to cancer drugs than to treatments for other diseases.

  16. Measuring Accessibility for Inclusive Development: A Census Based Index

    ERIC Educational Resources Information Center

    Bisht, Shailendra Singh; Mishra, Vishal; Fuloria, Sanjay

    2010-01-01

    State is often involved in the challenging process of judicious allocation and apportioning of resources for an inclusive growth through creating infrastructure and ensuring accessibility- the "ability of the people to reach and engage in opportunities and activities". The issue at the heart of the debate concerns with the "opportunities"…

  17. 4Kids.org: Topical, Searchable, and Safe Internet-Based Resource for Children and Youth

    ERIC Educational Resources Information Center

    Bacon, Melanie; Blood, Leslie; Ault, Marilyn; Adams, Doug

    2008-01-01

    4Kids.org is an online resource with an accompanying syndicated print publication created to promote safe access to websites and technology literacy. 4Kids.org, created by ALTEC at the University of Kansas in 1995, provides a variety of Internet-based activities as well as access to a database of websites reviewed for educational content,…

  18. VisPortal: Increasing Scientific Productivity by Simplifying Access to and Use of Remote Computational Resources

    SciTech Connect

    Siegerist, Cristina; Shalf, John; Bethel, E. Wes

    2004-01-01

    Our goal is to simplify and streamline the process of using remotely located visual data analysis software tools. This discussion presents an example of an easy-to-use interface that mediates access to and use of diverse and powerful visual data analysis resources. The interface is presented via a standard web browser, which is ubiquitous and a part of every researchers work environment. Through the web interface, a few mouse clicks are all that is needed to take advantage of powerful, remotely located software resources. The VisPortal project is the software that provides diverse services to remotely located users through their web browser. Using standard Globus-grid middleware and off-the-shelf web automation, the VisPortal hides the underlying complexity of resource selection and distributed application management. The portal automates complex workflows that would otherwise require a substantial amount of manual effort on the part of the researcher. With a few mouse clicks, a researcher can quickly perform complex tasks like creating MPEG movies, scheduling file transfers, launching components of a distributed application, and accessing specialized resources.

  19. Do poorer people have poorer access to local resources and facilities? The distribution of local resources by area deprivation in Glasgow, Scotland.

    PubMed

    Macintyre, Sally; Macdonald, Laura; Ellaway, Anne

    2008-09-01

    It has commonly been suggested that in modern cities individual or household deprivation (for example, low income or education) is amplified by area level deprivation (for example, lack of jobs or good schools), in ways which damage the health of the poorest and increase health inequalities. The aim of this study was to determine the location of a range of resources and exposures by deprivation in a UK city. We examined the location of 42 resources in Glasgow City, Scotland, in 2005-2006, by quintile of small area deprivation. Measures included number per 1000 population, network distance to nearest resource, and percentage of data zones containing at least one of each type of resource. Twelve resources had higher density in, and/or were closer to or more common in, more deprived neighbourhoods: public nurseries, public primary schools, police stations, pharmacies, credit unions, post offices, bus stops, bingo halls, public swimming pools, public sports centres, outdoor play areas, and vacant and derelict land/buildings. Sixteen had higher density in, and/or were closer to, or more common in, more affluent neighbourhoods: public secondary schools, private schools, banks, building societies, museums/art galleries, railway stations, subway stations, tennis courts, bowling greens, private health clubs, private swimming pools, colleges, A & E hospitals, parks, waste disposal sites, and tourist attractions. Private nurseries, Universities, fire stations, general, dental and ophthalmic practices, pawn brokers, ATMs, supermarkets, fast food chains, cafes, public libraries, golf courses, and cinemas showed no clear pattern by deprivation. Thus it appears that in the early 21st century access to resources does not always disadvantage poorer neighbourhoods in the UK. We conclude that we need to ensure that theories and policies are based on up-to-date and context-specific empirical evidence on the distribution of neighbourhood resources, and to engage in further research on

  20. Do poorer people have poorer access to local resources and facilities? The distribution of local resources by area deprivation in Glasgow, Scotland☆

    PubMed Central

    Macintyre, Sally; Macdonald, Laura; Ellaway, Anne

    2008-01-01

    It has commonly been suggested that in modern cities individual or household deprivation (for example, low income or education) is amplified by area level deprivation (for example, lack of jobs or good schools), in ways which damage the health of the poorest and increase health inequalities. The aim of this study was to determine the location of a range of resources and exposures by deprivation in a UK city. We examined the location of 42 resources in Glasgow City, Scotland, in 2005–2006, by quintile of small area deprivation. Measures included number per 1000 population, network distance to nearest resource, and percentage of data zones containing at least one of each type of resource. Twelve resources had higher density in, and/or were closer to or more common in, more deprived neighbourhoods: public nurseries, public primary schools, police stations, pharmacies, credit unions, post offices, bus stops, bingo halls, public swimming pools, public sports centres, outdoor play areas, and vacant and derelict land/buildings. Sixteen had higher density in, and/or were closer to, or more common in, more affluent neighbourhoods: public secondary schools, private schools, banks, building societies, museums/art galleries, railway stations, subway stations, tennis courts, bowling greens, private health clubs, private swimming pools, colleges, A & E hospitals, parks, waste disposal sites, and tourist attractions. Private nurseries, Universities, fire stations, general, dental and ophthalmic practices, pawn brokers, ATMs, supermarkets, fast food chains, cafes, public libraries, golf courses, and cinemas showed no clear pattern by deprivation. Thus it appears that in the early 21st century access to resources does not always disadvantage poorer neighbourhoods in the UK. We conclude that we need to ensure that theories and policies are based on up-to-date and context-specific empirical evidence on the distribution of neighbourhood resources, and to engage in further research

  1. Do poorer people have poorer access to local resources and facilities? The distribution of local resources by area deprivation in Glasgow, Scotland.

    PubMed

    Macintyre, Sally; Macdonald, Laura; Ellaway, Anne

    2008-09-01

    It has commonly been suggested that in modern cities individual or household deprivation (for example, low income or education) is amplified by area level deprivation (for example, lack of jobs or good schools), in ways which damage the health of the poorest and increase health inequalities. The aim of this study was to determine the location of a range of resources and exposures by deprivation in a UK city. We examined the location of 42 resources in Glasgow City, Scotland, in 2005-2006, by quintile of small area deprivation. Measures included number per 1000 population, network distance to nearest resource, and percentage of data zones containing at least one of each type of resource. Twelve resources had higher density in, and/or were closer to or more common in, more deprived neighbourhoods: public nurseries, public primary schools, police stations, pharmacies, credit unions, post offices, bus stops, bingo halls, public swimming pools, public sports centres, outdoor play areas, and vacant and derelict land/buildings. Sixteen had higher density in, and/or were closer to, or more common in, more affluent neighbourhoods: public secondary schools, private schools, banks, building societies, museums/art galleries, railway stations, subway stations, tennis courts, bowling greens, private health clubs, private swimming pools, colleges, A & E hospitals, parks, waste disposal sites, and tourist attractions. Private nurseries, Universities, fire stations, general, dental and ophthalmic practices, pawn brokers, ATMs, supermarkets, fast food chains, cafes, public libraries, golf courses, and cinemas showed no clear pattern by deprivation. Thus it appears that in the early 21st century access to resources does not always disadvantage poorer neighbourhoods in the UK. We conclude that we need to ensure that theories and policies are based on up-to-date and context-specific empirical evidence on the distribution of neighbourhood resources, and to engage in further research on

  2. Resource Document on Access to Firearms by People with Mental Disorders.

    PubMed

    Pinals, Debra A; Appelbaum, Paul S; Bonnie, Richard J; Fisher, Carl E; Gold, Liza H; Lee, Li-Wen

    2015-06-01

    The American Psychiatric Association, ("APA"), with more than 36,000 members at present, is the Nation's leading organization of physicians who specialize in psychiatry. APA provides for education and advocacy and develops policy through Position Statements. It promotes enhanced knowledge of particular topics relevant to psychiatric practice and patient care through Resource Documents. Since 1993, the APA has developed various positions and resource materials related to firearms and mental illness, incorporating evolving themes as new issues emerge. This paper reflects the APA's 2014 Resource Document on "Access to Firearms by People with Mental Disorders." This article is derived from work done on behalf of American Psychiatric Association and remains the property of APA. It has been altered only in response to the requirements of peer review. PMID:26095099

  3. Resource Document on Access to Firearms by People with Mental Disorders.

    PubMed

    Pinals, Debra A; Appelbaum, Paul S; Bonnie, Richard J; Fisher, Carl E; Gold, Liza H; Lee, Li-Wen

    2015-06-01

    The American Psychiatric Association, ("APA"), with more than 36,000 members at present, is the Nation's leading organization of physicians who specialize in psychiatry. APA provides for education and advocacy and develops policy through Position Statements. It promotes enhanced knowledge of particular topics relevant to psychiatric practice and patient care through Resource Documents. Since 1993, the APA has developed various positions and resource materials related to firearms and mental illness, incorporating evolving themes as new issues emerge. This paper reflects the APA's 2014 Resource Document on "Access to Firearms by People with Mental Disorders." This article is derived from work done on behalf of American Psychiatric Association and remains the property of APA. It has been altered only in response to the requirements of peer review.

  4. Supporting Teachers to Automatically Build Accessible Pedagogical Resources: The APEINTA Project

    NASA Astrophysics Data System (ADS)

    Iglesias, Ana; Moreno, Lourdes; Jiménez, Javier

    Most of the universities in Europe have started their process of adaptation towards a common educational space according to the European Higher Education Area (EHEA). The social dimension of the Bologna Process is a constituent part of the EHEA and it is a necessary condition for the attractiveness and competitiveness of the EHEA. Two of the main features of the social dimension are the equal access for all the students and the lifelong learning. One of the main problems of the adaptation process to the EHEA is that the teachers have no previous references and models to develop new pedagogical experiences accessible to all the students, nevertheless of their abilities, capabilities or accessibility characteristics. The APEINTA project presented in this paper can be used as a helpful tool for teachers in order to cope with the teaching demands of EHEA, helping the teachers to automatically build accessible pedagogical resources even when the teachers are not accessibility experts. This educational project has been successfully used in 2009 in two different degrees at the Carlos III University of Madrid: Computer Science and Library and Information Science.

  5. Resources for School Based Teacher Educators

    ERIC Educational Resources Information Center

    Rand, Charlette, Ed.

    This guide, containing twenty competencies, was designed to aid the school-based teacher educator in twenty selected areas to improve his ability to help teachers. Criteria for materials included in the twenty competencies stressed change potential, concreteness of objectives, accessibility, and quality. Each of the twenty divisions of the…

  6. A Web-Based Remote Access Laboratory Using SCADA

    ERIC Educational Resources Information Center

    Aydogmus, Z.; Aydogmus, O.

    2009-01-01

    The Internet provides an opportunity for students to access laboratories from outside the campus. This paper presents a Web-based remote access real-time laboratory using SCADA (supervisory control and data acquisition) control. The control of an induction motor is used as an example to demonstrate the effectiveness of this remote laboratory,…

  7. Web application for simplifying access to computer center resources and information.

    2013-05-01

    Lorenz is a product of the ASC Scientific Data Management effort. Lorenz is a web-based application designed to help computer centers make information and resources more easily available to their users.

  8. Communication, Control, and Computer Access for Disabled and Elderly Individuals. ResourceBook 3: Software and Hardware. Rehab/Education Technology ResourceBook Series.

    ERIC Educational Resources Information Center

    Brandenburg, Sara A., Ed.; Vanderheiden, Gregg C., Ed.

    One of a series of three resource guides concerned with communication, control, and computer access for the disabled or the elderly, the book focuses on hardware and software. The guide's 13 chapters each cover products with the same primary function. Cross reference indexes allow access to listings of products by function, input/output…

  9. Communication, Control, and Computer Access for Disabled and Elderly Individuals. ResourceBook 2: Switches and Environmental Controls. Rehab/Education Technology ResourceBook Series.

    ERIC Educational Resources Information Center

    Brandenburg, Sara A., Ed.; Vanderheiden, Gregg C., Ed.

    One of a series of three resource guides concerned with communication, control, and computer access for disabled and elderly individuals, the directory focuses on switches and environmental controls. The book's three chapters each cover products with the same primary function. Cross reference indexes allow access to listings of products by…

  10. Communication, Control, and Computer Access for Disabled and Elderly Individuals. ResourceBook 1: Communication Aids. Rehab/Education Technology ResourceBook Series.

    ERIC Educational Resources Information Center

    Brandenburg, Sara A., Ed.; Vanderheiden, Gregg C., Ed.

    One of a series of three resource guides concerned with communication, control, and computer access for disabled and elderly individuals, the directory focuses on communication aids. The book's six chapters each cover products with the same primary function. Cross reference indexes allow access to listings of products by function, input/output…

  11. Mars Mission Optimization Based on Collocation of Resources

    NASA Technical Reports Server (NTRS)

    Chamitoff, G. E.; James, G. H.; Barker, D. C.; Dershowitz, A. L.

    2003-01-01

    This paper presents a powerful approach for analyzing Martian data and for optimizing mission site selection based on resource collocation. This approach is implemented in a program called PROMT (Planetary Resource Optimization and Mapping Tool), which provides a wide range of analysis and display functions that can be applied to raw data or imagery. Thresholds, contours, custom algorithms, and graphical editing are some of the various methods that can be used to process data. Output maps can be created to identify surface regions on Mars that meet any specific criteria. The use of this tool for analyzing data, generating maps, and collocating features is demonstrated using data from the Mars Global Surveyor and the Odyssey spacecraft. The overall mission design objective is to maximize a combination of scientific return and self-sufficiency based on utilization of local materials. Landing site optimization involves maximizing accessibility to collocated science and resource features within a given mission radius. Mission types are categorized according to duration, energy resources, and in-situ resource utilization. Optimization results are shown for a number of mission scenarios.

  12. Implementing the EuroFIR Document and Data Repositories as accessible resources of food composition information.

    PubMed

    Unwin, Ian; Jansen-van der Vliet, Martine; Westenbrink, Susanne; Presser, Karl; Infanger, Esther; Porubska, Janka; Roe, Mark; Finglas, Paul

    2016-02-15

    The EuroFIR Document and Data Repositories are being developed as accessible collections of source documents, including grey literature, and the food composition data reported in them. These Repositories will contain source information available to food composition database compilers when selecting their nutritional data. The Document Repository was implemented as searchable bibliographic records in the Europe PubMed Central database, which links to the documents online. The Data Repository will contain original data from source documents in the Document Repository. Testing confirmed the FoodCASE food database management system as a suitable tool for the input, documentation and quality assessment of Data Repository information. Data management requirements for the input and documentation of reported analytical results were established, including record identification and method documentation specifications. Document access and data preparation using the Repositories will provide information resources for compilers, eliminating duplicated work and supporting unambiguous referencing of data contributing to their compiled data.

  13. Implementing the EuroFIR Document and Data Repositories as accessible resources of food composition information.

    PubMed

    Unwin, Ian; Jansen-van der Vliet, Martine; Westenbrink, Susanne; Presser, Karl; Infanger, Esther; Porubska, Janka; Roe, Mark; Finglas, Paul

    2016-02-15

    The EuroFIR Document and Data Repositories are being developed as accessible collections of source documents, including grey literature, and the food composition data reported in them. These Repositories will contain source information available to food composition database compilers when selecting their nutritional data. The Document Repository was implemented as searchable bibliographic records in the Europe PubMed Central database, which links to the documents online. The Data Repository will contain original data from source documents in the Document Repository. Testing confirmed the FoodCASE food database management system as a suitable tool for the input, documentation and quality assessment of Data Repository information. Data management requirements for the input and documentation of reported analytical results were established, including record identification and method documentation specifications. Document access and data preparation using the Repositories will provide information resources for compilers, eliminating duplicated work and supporting unambiguous referencing of data contributing to their compiled data. PMID:26433292

  14. Communicative social capital and collective efficacy as determinants of access to health-enhancing resources in residential communities.

    PubMed

    Matsaganis, Matthew D; Wilkin, Holley A

    2015-04-01

    This article contributes to the burgeoning literature on the social determinants of health disparities. The authors investigate how communication resources and collective efficacy, independently and in combination, shape residents' access to health enhancing resources (including healthcare services, sources of healthier food options, and public recreation spaces) in their communities. Using random digit dial telephone survey data from 833 residents of South Los Angeles communities the authors show that communicative social capital-that is, an information and problem-solving resource that accrues to residents as they become more integrated into their local communication network of neighbors, community organizations, and local media-plays a significant role in access to health resources. This relationship is complicated by individuals' health insurance and health status, as communicative social capital magnifies the sense of absence of resources for those who are in worse health and lack insurance. Communicative social capital builds collective efficacy, which is positively related to access to health-enhancing resources, but it also mediates the negative relationship between communicative social capital and access to health resources. Residents with richer stores of communicative social capital and collective efficacy report better access to health resources. The authors conclude with a discussion of implications of these findings and suggestions for future research.

  15. Disseminating context-specific access to online knowledge resources within electronic health record systems.

    PubMed

    Del Fiol, Guilherme; Curtis, Clayton; Cimino, James J; Iskander, Andrew; Kalluri, Aditya S D; Jing, Xia; Hulse, Nathan C; Long, Jie; Overby, Casey L; Schardt, Connie; Douglas, David M

    2013-01-01

    Clinicians' patient care information needs are frequent and largely unmet. Online knowledge resources are available that can help clinicians meet these information needs. Yet, significant barriers limit the use of these resources within the clinical workflow. Infobuttons are clinical decision support tools that use the clinical context (e.g., institution, user, patient) within electronic health record (EHR) systems to anticipate clinicians' questions and provide automated links to relevant information in knowledge resources. This paper describes OpenInfobutton (www.openinfobutton.org): a standards-based, open source Web service that was designed to disseminate infobutton capabilities in multiple EHR systems and healthcare organizations. OpenInfobutton has been successfully integrated with 38 knowledge resources at 5 large healthcare organizations in the United States. We describe the OpenInfobutton architecture, knowledge resource integration, and experiences at five large healthcare organizations.

  16. Disseminating Context-Specific Access to Online Knowledge Resources within Electronic Health Record Systems

    PubMed Central

    Fiol, Guilherme Del; Curtis, Clayton; Cimino, James J.; Iskander, Andrew; Kalluri, Aditya S.D.; Jing, Xia; Hulse, Nathan C.; Long, Jie; Overby, Casey L.; Schardt, Connie; Douglas, David M.

    2013-01-01

    Clinicians’ patient care information needs are frequent and largely unmet. Online knowledge resources are available that can help clinicians meet these information needs. Yet, significant barriers limit the use of these resources within the clinical workflow. Infobuttons are clinical decision support tools that use the clinical context (e.g., institution, user, patient) within electronic health record (EHR) systems to anticipate clinicians’ questions and provide automated links to relevant information in knowledge resources. This paper describes OpenInfobutton (www.openinfobutton.org): a standards-based, open source Web service that was designed to disseminate infobutton capabilities in multiple EHR systems and healthcare organizations. OpenInfobutton has been successfully integrated with 38 knowledge resources at 5 large healthcare organizations in the United States. We describe the OpenInfobutton architecture, knowledge resource integration, and experiences at five large healthcare organizations. PMID:23920641

  17. Fishing and farming at Lake Chad: institutions for access to natural resources.

    PubMed

    Sarch, M T

    2001-06-01

    Lake Chad is a vitally important wetland in the semi-arid Sahel corridor. It provides the basis of many thousands of livelihoods which depend on its seasonal fluctuations to renew fish stocks, farmland and rangeland. This paper describes how access to farmland and fishing rights has evolved on the Nigerian shore of the lake. The paper aims to assess the applicability of different institutional approaches to natural resource management on the lake shore. Although many recent approaches to natural resource management have reflected a 'Tragedy of the Commons' approach, a growing literature both in support and critical of Hardin's (1968) thesis has followed. Four distinct approaches are considered: (1) institutional intervention to prevent 'tragedy'; (2) institution erosion brought about by such interventions; (3) models of institutional adaptation to resource scarcity; and (4) approaches which perceive institutions as a crucial determinant of social and economic development. In examining which institutional approaches may be relevant at Lake Chad, it is anticipated that this paper will provide insights which will be relevant to policy-makers, resource managers and students working in environments where resource fluctuation inhibits stable property rights and state resource management has proved neither feasible nor successful. The western shore of Lake Chad has been under the jurisdiction of Borno State in its various guises since the end of the fourteenth century and is currently one of 36 states in the Federal Republic of Nigeria. Although the administrative status of Borno itself has varied, it has been dominated by a Kanuri aristocracy for most of its existence. The Kanuri administration has continued to operate in a remarkably similar way over the past 150 years. Traditionally, it has played a crucial role in allocating access to farm land. In recent years, the 'Kanuri administration' has not only maintained its pre-colonial authority over farming on the lake

  18. Fishing and farming at Lake Chad: institutions for access to natural resources.

    PubMed

    Sarch, M T

    2001-06-01

    Lake Chad is a vitally important wetland in the semi-arid Sahel corridor. It provides the basis of many thousands of livelihoods which depend on its seasonal fluctuations to renew fish stocks, farmland and rangeland. This paper describes how access to farmland and fishing rights has evolved on the Nigerian shore of the lake. The paper aims to assess the applicability of different institutional approaches to natural resource management on the lake shore. Although many recent approaches to natural resource management have reflected a 'Tragedy of the Commons' approach, a growing literature both in support and critical of Hardin's (1968) thesis has followed. Four distinct approaches are considered: (1) institutional intervention to prevent 'tragedy'; (2) institution erosion brought about by such interventions; (3) models of institutional adaptation to resource scarcity; and (4) approaches which perceive institutions as a crucial determinant of social and economic development. In examining which institutional approaches may be relevant at Lake Chad, it is anticipated that this paper will provide insights which will be relevant to policy-makers, resource managers and students working in environments where resource fluctuation inhibits stable property rights and state resource management has proved neither feasible nor successful. The western shore of Lake Chad has been under the jurisdiction of Borno State in its various guises since the end of the fourteenth century and is currently one of 36 states in the Federal Republic of Nigeria. Although the administrative status of Borno itself has varied, it has been dominated by a Kanuri aristocracy for most of its existence. The Kanuri administration has continued to operate in a remarkably similar way over the past 150 years. Traditionally, it has played a crucial role in allocating access to farm land. In recent years, the 'Kanuri administration' has not only maintained its pre-colonial authority over farming on the lake

  19. Access to water and related resources in Ngamiland, Botswana: Toward a more critical perspective and sustainable approach

    NASA Astrophysics Data System (ADS)

    Kgomotso, Phemo K.; Swatuk, Larry A.

    Governance structures in Botswana are highly centralized and top-down in orientation. For water and related resources management in rural areas, this creates particular difficulties - from lack of decision-making capacity to limited human and financial capital at the level of the resource base. In Ngamiland, government is currently undertaking the Okavango Delta Management Plan project as part of its commitment to the Ramsar Convention on Wetlands. The project purports to develop an integrated management plan based on an ecosystems approach. Meaningful participation by local people is a requirement of the process. Data from 43 village meetings undertaken under the auspices of the ODMP process reveal that local people’s access to their resource base is diminishing. Information from key informant interviews and a variety of government documents, however, suggests that policy makers are either unaware of or uninterested in this growing problem. Although citizens and government are engaged in an on-going dialogue, there is little evidence to suggest that policy and practice are moving toward sustainable solutions for all. This article highlights these issues in the hope that a more meaningful dialogue among all stakeholders may be undertaken.

  20. Multiple Intimate Partner Violence Experiences: Knowledge, Access, Utilization and Barriers to Utilization of Resources by Women of the African Diaspora

    PubMed Central

    Sabri, Bushra; Huerta, Julia; Alexander, Kamila A.; St.Vil, Noelle M.; Campbell, Jacquelyn C.; Callwood, Gloria B.

    2016-01-01

    Objective This study examined knowledge, access, utilization, and barriers to use of resources among Black women exposed to multiple types of intimate partner violence in Baltimore, Maryland and the U.S. Virgin Islands (USVI). Methods We analyzed quantitative survey data collected by 163 women recruited from primary care, prenatal or family planning clinics in Baltimore and the USVI. In addition we analyzed qualitative data from in-depth interviews with 11 women. Quantitative data were analyzed using descriptive statistics and qualitative data were analyzed using thematic analysis. Results A substantial proportion of Black women with multiple types of violence experiences lacked knowledge of, did not have access to, and did not use resources. Barriers to resource use were identified at the individual, relationship, and community levels. Conclusion There is need for programs to develop awareness, promote access and utilization of resources, and eliminate barriers to resource use among abused Black women. PMID:26548679

  1. Germplasm Conservation and Access to Genetic Resources: National Plant Germplasm System and the National Clonal Germplasm Repository

    Technology Transfer Automated Retrieval System (TEKTRAN)

    The US National Plant Germplasm System (NPGS) conserves more than 550,000 accessions of genetic resources of crop wild relatives and cultivated, economically important crops. These accessions represent more than 20,000 plant species and are stored at about 25 locations throughout the United States. ...

  2. Prioritization of Malus accessions for collection cryopreservation at the USDA-ARS National Center for Genetic Resources Preservation

    Technology Transfer Automated Retrieval System (TEKTRAN)

    The USDA-ARS National Plant Germplasm System maintains a grafted collection of apple accessions representing 49 taxa in Geneva, NY. Dormant buds of many of these accessions have been routinely cryopreserved at the USDA-ARS National Center for Genetic Resources Preservation (NCGRP) in Fort Collins, C...

  3. Bringing Up Gopher: Access to Local & Remote Electronic Resources for University Library Users.

    ERIC Educational Resources Information Center

    Brown, Melvin Marlo; And Others

    Some of the administrative and organizational issues in creating a gopher, specifically a library gopher for university libraries, are discussed. In 1993 the Electronic Collections Task Force of the New Mexico State University library administration began to develop a library-based gopher system that would enable users to have unlimited access to…

  4. Academic Referencing of Internet-Based Resources.

    ERIC Educational Resources Information Center

    Fletcher, Gordon; Greenhill, Anita

    1995-01-01

    Proposes the development of a consistent bibliographical referencing method for citing information retrieved from Internet-based resources. Presents examples of citations for information retrieved via World Wide Web, gopher, file transfer protocol, USENET News, electronic journals distributed by listservs, and electronic mail. (JMV)

  5. Competency-Based Human Resource Development Strategy

    ERIC Educational Resources Information Center

    Gangani, Noordeen T.; McLean, Gary N.; Braden, Richard A.

    2004-01-01

    This paper explores issues in developing and implementing a competency-based human resource development strategy. The paper summarizes a literature review on how competency models can improve HR performance. A case study is presented of American Medical Systems (AMS), a mid-sized health-care and medical device company, where the model is being…

  6. Access Control of Web- and Java-Based Applications

    NASA Technical Reports Server (NTRS)

    Tso, Kam S.; Pajevski, Michael J.

    2013-01-01

    Cybersecurity has become a great concern as threats of service interruption, unauthorized access, stealing and altering of information, and spreading of viruses have become more prevalent and serious. Application layer access control of applications is a critical component in the overall security solution that also includes encryption, firewalls, virtual private networks, antivirus, and intrusion detection. An access control solution, based on an open-source access manager augmented with custom software components, was developed to provide protection to both Web-based and Javabased client and server applications. The DISA Security Service (DISA-SS) provides common access control capabilities for AMMOS software applications through a set of application programming interfaces (APIs) and network- accessible security services for authentication, single sign-on, authorization checking, and authorization policy management. The OpenAM access management technology designed for Web applications can be extended to meet the needs of Java thick clients and stand alone servers that are commonly used in the JPL AMMOS environment. The DISA-SS reusable components have greatly reduced the effort for each AMMOS subsystem to develop its own access control strategy. The novelty of this work is that it leverages an open-source access management product that was designed for Webbased applications to provide access control for Java thick clients and Java standalone servers. Thick clients and standalone servers are still commonly used in businesses and government, especially for applications that require rich graphical user interfaces and high-performance visualization that cannot be met by thin clients running on Web browsers

  7. Spatial Analysis of the Distribution, Risk Factors and Access to Medical Resources of Patients with Hepatitis B in Shenzhen, China

    PubMed Central

    Xi, Yuliang; Ren, Fu; Liang, Shi; Zhang, Jinghua; Lin, De-Nan

    2014-01-01

    Considering the high morbidity of hepatitis B in China, many epidemiological studies based on classic medical statistical analysis have been started but lack spatial information. However, spatial information such as the spatial distribution, autocorrelation and risk factors of the disease is of great help in studying patients with hepatitis B. This study examined 2851 cases of hepatitis B that were hospitalized in Shenzhen in 2010 and studied the spatial distribution, risk factors and spatial access to health services using spatial interpolation, Pearson correlation analysis and the improved two-step floating catchment area method. The results showed that the spatial distribution of hepatitis B, along with risk factors as well as spatial access to the regional medical resources, was uneven and mainly concentrated in the south and southwest of Shenzhen in 2010. In addition, the distribution characteristics of hepatitis B revealed a positive correlation between four types of service establishments and risk factors for the disease. The Pearson correlation coefficients are 0.566, 0.515, 0.626, 0.538 corresponding to bath centres, beauty salons, massage parlours and pedicure parlours (p < 0.05). Additionally, the allocation of medical resources for hepatitis B is adequate, as most patients could be treated at nearby hospitals. PMID:25386954

  8. Mineral resources estimation based on block modeling

    NASA Astrophysics Data System (ADS)

    Bargawa, Waterman Sulistyana; Amri, Nur Ali

    2016-02-01

    The estimation in this paper uses three kinds of block models of nearest neighbor polygon, inverse distance squared and ordinary kriging. The techniques are weighting scheme which is based on the principle that block content is a linear combination of the grade data or the sample around the block being estimated. The case study in Pongkor area, here is gold-silver resource modeling that allegedly shaped of quartz vein as a hydrothermal process of epithermal type. Resources modeling includes of data entry, statistical and variography analysis of topography and geological model, the block model construction, estimation parameter, presentation model and tabulation of mineral resources. Skewed distribution, here isolated by robust semivariogram. The mineral resources classification generated in this model based on an analysis of the kriging standard deviation and number of samples which are used in the estimation of each block. Research results are used to evaluate the performance of OK and IDS estimator. Based on the visual and statistical analysis, concluded that the model of OK gives the estimation closer to the data used for modeling.

  9. A Folksonomy-Based Lightweight Resource Annotation Metadata Schema for Personalized Hypermedia Learning Resource Delivery

    ERIC Educational Resources Information Center

    Lau, Simon Boung-Yew; Lee, Chien-Sing; Singh, Yashwant Prasad

    2015-01-01

    With the proliferation of social Web applications, users can now collaboratively author, share and access hypermedia learning resources, contributing to richer learning experiences outside formal education. These resources may or may not be educational. However, they can be harnessed for educational purposes by adapting and personalizing them to…

  10. Economic Insights into Providing Access to Improved Groundwater Sources in Remote, Low-Resource Areas

    NASA Astrophysics Data System (ADS)

    Abramson, A.; Lazarovitch, N.; Adar, E.

    2013-12-01

    Groundwater is often the most or only feasible drinking water source in remote, low-resource areas. Yet the economics of its development have not been systematically outlined. We applied CBARWI (Cost-Benefit Analysis for Remote Water Improvements), a recently developed Decision Support System, to investigate the economic, physical and management factors related to the costs and benefits of non-networked groundwater supply in remote areas. Synthetic profiles of community water services (n = 17,962), defined across 14 parameters' values and ranges relevant to remote areas, were imputed into the decision framework, and the parameter effects on economic outcomes were investigated through regression analysis (Table 1). Several approaches were included for financing the improvements, after Abramson et al, 2011: willingness-to -pay (WTP), -borrow (WTB) and -work (WTW) in community irrigation (';water-for-work'). We found that low-cost groundwater development approaches are almost 7 times more cost-effective than conventional boreholes fitted with handpumps. The costs of electric, submersible borehole pumps are comparable only when providing expanded water supplies, and off-grid communities pay significantly more for such expansions. In our model, new source construction is less cost-effective than improvement of existing wells, but necessary for expanding access to isolated households. The financing approach significantly impacts the feasibility of demand-driven cost recovery; in our investigation, benefit exceeds cost in 16, 32 and 48% of water service configurations financed by WTP, WTB and WTW, respectively. Regressions of total cost (R2 = 0.723) and net benefit under WTW (R2 = 0.829) along with analysis of output distributions indicate that parameters determining the profitability of irrigation are different from those determining costs and other measures of net benefit. These findings suggest that the cost-benefit outcomes associated with groundwater-based water

  11. Implementing context and team based access control in healthcare intranets.

    PubMed

    Georgiadis, Christos K; Mavridis, Ioannis K; Nikolakopoulou, Georgia; Pangalos, George I

    2002-09-01

    The establishment of an efficient access control system in healthcare intranets is a critical security issue directly related to the protection of patients' privacy. Our C-TMAC (Context and Team-based Access Control) model is an active security access control model that layers dynamic access control concepts on top of RBAC (Role-based) and TMAC (Team-based) access control models. It also extends them in the sense that contextual information concerning collaborative activities is associated with teams of users and user permissions are dynamically filtered during runtime. These features of C-TMAC meet the specific security requirements of healthcare applications. In this paper, an experimental implementation of the C-TMAC model is described. More specifically, we present the operational architecture of the system that is used to implement C-TMAC security components in a healthcare intranet. Based on the technological platform of an Oracle Data Base Management System and Application Server, the application logic is coded with stored PL/SQL procedures that include Dynamic SQL routines for runtime value binding purposes. The resulting active security system adapts to current need-to-know requirements of users during runtime and provides fine-grained permission granularity. Apart from identity certificates for authentication, it uses attribute certificates for communicating critical security metadata, such as role membership and team participation of users.

  12. Distributed energy resources at naval base ventura county building 1512

    SciTech Connect

    Bailey, Owen C.; Marnay, Chris

    2004-10-01

    This paper reports the findings of a preliminary assessment of the cost effectiveness of distributed energy resources at Naval Base Ventura County (NBVC) Building 1512. This study was conducted in response to the base's request for design assistance to the Federal Energy Management Program. Given the current tariff structure there are two main decisions facing NBVC: whether to install distributed energy resources (DER), or whether to continue the direct access energy supply contract. At the current effective rate, given assumptions about the performance and structure of building energy loads and available generating technology characteristics, the results of this study indicate that if the building installed a 600 kW DER system with absorption cooling and heat capabilities chosen by cost minimization, the energy cost savings would be about 14 percent, or $55,000 per year. However, under current conditions, this study also suggests that significant savings could be obtained if Building 1 512 changed from the direct access contract to a SCE TOU-8 (Southern California Edison time of use tariff number 8) rate without installing a DER system. At current SCE TOU-8 tariffs, the potential savings from installation of a DER system would be about 4 percent, or $15,000 per year.

  13. The academic, economic and societal impacts of Open Access: an evidence-based review

    PubMed Central

    Tennant, Jonathan P.; Waldner, François; Jacques, Damien C.; Masuzzo, Paola; Collister, Lauren B.; Hartgerink, Chris. H. J.

    2016-01-01

    Ongoing debates surrounding Open Access to the scholarly literature are multifaceted and complicated by disparate and often polarised viewpoints from engaged stakeholders. At the current stage, Open Access has become such a global issue that it is critical for all involved in scholarly publishing, including policymakers, publishers, research funders, governments, learned societies, librarians, and academic communities, to be well-informed on the history, benefits, and pitfalls of Open Access. In spite of this, there is a general lack of consensus regarding the potential pros and cons of Open Access at multiple levels. This review aims to be a resource for current knowledge on the impacts of Open Access by synthesizing important research in three major areas: academic, economic and societal. While there is clearly much scope for additional research, several key trends are identified, including a broad citation advantage for researchers who publish openly, as well as additional benefits to the non-academic dissemination of their work. The economic impact of Open Access is less well-understood, although it is clear that access to the research literature is key for innovative enterprises, and a range of governmental and non-governmental services. Furthermore, Open Access has the potential to save both publishers and research funders considerable amounts of financial resources, and can provide some economic benefits to traditionally subscription-based journals. The societal impact of Open Access is strong, in particular for advancing citizen science initiatives, and leveling the playing field for researchers in developing countries. Open Access supersedes all potential alternative modes of access to the scholarly literature through enabling unrestricted re-use, and long-term stability independent of financial constraints of traditional publishers that impede knowledge sharing. However, Open Access has the potential to become unsustainable for research communities if

  14. The academic, economic and societal impacts of Open Access: an evidence-based review.

    PubMed

    Tennant, Jonathan P; Waldner, François; Jacques, Damien C; Masuzzo, Paola; Collister, Lauren B; Hartgerink, Chris H J

    2016-01-01

    Ongoing debates surrounding Open Access to the scholarly literature are multifaceted and complicated by disparate and often polarised viewpoints from engaged stakeholders. At the current stage, Open Access has become such a global issue that it is critical for all involved in scholarly publishing, including policymakers, publishers, research funders, governments, learned societies, librarians, and academic communities, to be well-informed on the history, benefits, and pitfalls of Open Access. In spite of this, there is a general lack of consensus regarding the potential pros and cons of Open Access at multiple levels. This review aims to be a resource for current knowledge on the impacts of Open Access by synthesizing important research in three major areas: academic, economic and societal. While there is clearly much scope for additional research, several key trends are identified, including a broad citation advantage for researchers who publish openly, as well as additional benefits to the non-academic dissemination of their work. The economic impact of Open Access is less well-understood, although it is clear that access to the research literature is key for innovative enterprises, and a range of governmental and non-governmental services. Furthermore, Open Access has the potential to save both publishers and research funders considerable amounts of financial resources, and can provide some economic benefits to traditionally subscription-based journals. The societal impact of Open Access is strong, in particular for advancing citizen science initiatives, and leveling the playing field for researchers in developing countries. Open Access supersedes all potential alternative modes of access to the scholarly literature through enabling unrestricted re-use, and long-term stability independent of financial constraints of traditional publishers that impede knowledge sharing. However, Open Access has the potential to become unsustainable for research communities if

  15. An automated system for access to derived climate indices in support of ecological impacts assessments and resource management

    NASA Astrophysics Data System (ADS)

    Walker, J.; Morisette, J. T.; Talbert, C.; Blodgett, D. L.; Kunicki, T.

    2012-12-01

    A U.S. Geological Survey team is working with several providers to establish standard data services for the climate projection data they host. To meet the needs of climate adaptation science and landscape management communities, the team is establishing a set of climate index calculation algorithms that will consume data from various providers and provide directly useful data derivatives. Climate projections coming from various scenarios, modeling centers, and downscaling methods are increasing in number and size. Global change impact modeling and assessment, generally, requires inputs in the form of climate indices or values derived from raw climate projections. This requirement puts a large burden on a community not familiar with climate data formats, semantics, and processing techniques and requires storage capacity and computing resources out of the reach of most. In order to fully understand the implications of our best available climate projections, assessments must take into account an ensemble of climate projections and potentially a range of parameters for calculation of climate indices. These requirements around data access and processing are not unique from project to project, or even among projected climate data sets, pointing to the need for a reusable tool to generate climate indices. The U.S. Geological Survey has developed a pilot application and supporting web service framework that automates the generation of climate indices. The web service framework consists of standards-based data servers and a data integration broker. The resulting system allows data producers to publish and maintain ownership of their data and data consumers to access climate derivatives via a simple to use "data product ordering" workflow. Data access and processing is completed on enterprise "cloud" computing resources and only the relatively small, derived climate indices are delivered to the scientist or land manager. These services will assist the scientific and land

  16. CONTEXT PHOTOGRAPH OF BASE END STATIONS FROM ACCESS ROAD AT ...

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

    CONTEXT PHOTOGRAPH OF BASE END STATIONS FROM ACCESS ROAD AT MIDSLOPE, FACING NORTH. FROM LEFT TO RIGHT ARE STATIONS BARLOW, SAXTON, LEARY, MERRIAM (OUT OF VIEW BEHIND WW n ERA CONSTRUCTION), OSGOOD, AND FARLEY - White's Point Reservation, Base End Stations, Bounded by Voyager Circle & Mariner Drive, San Pedro, Los Angeles County, CA

  17. Spatiotemporal access model based on reputation for the sensing layer of the IoT.

    PubMed

    Guo, Yunchuan; Yin, Lihua; Li, Chao; Qian, Junyan

    2014-01-01

    Access control is a key technology in providing security in the Internet of Things (IoT). The mainstream security approach proposed for the sensing layer of the IoT concentrates only on authentication while ignoring the more general models. Unreliable communications and resource constraints make the traditional access control techniques barely meet the requirements of the sensing layer of the IoT. In this paper, we propose a model that combines space and time with reputation to control access to the information within the sensing layer of the IoT. This model is called spatiotemporal access control based on reputation (STRAC). STRAC uses a lattice-based approach to decrease the size of policy bases. To solve the problem caused by unreliable communications, we propose both nondeterministic authorizations and stochastic authorizations. To more precisely manage the reputation of nodes, we propose two new mechanisms to update the reputation of nodes. These new approaches are the authority-based update mechanism (AUM) and the election-based update mechanism (EUM). We show how the model checker UPPAAL can be used to analyze the spatiotemporal access control model of an application. Finally, we also implement a prototype system to demonstrate the efficiency of our model.

  18. Spatiotemporal Access Model Based on Reputation for the Sensing Layer of the IoT

    PubMed Central

    Guo, Yunchuan; Yin, Lihua; Li, Chao

    2014-01-01

    Access control is a key technology in providing security in the Internet of Things (IoT). The mainstream security approach proposed for the sensing layer of the IoT concentrates only on authentication while ignoring the more general models. Unreliable communications and resource constraints make the traditional access control techniques barely meet the requirements of the sensing layer of the IoT. In this paper, we propose a model that combines space and time with reputation to control access to the information within the sensing layer of the IoT. This model is called spatiotemporal access control based on reputation (STRAC). STRAC uses a lattice-based approach to decrease the size of policy bases. To solve the problem caused by unreliable communications, we propose both nondeterministic authorizations and stochastic authorizations. To more precisely manage the reputation of nodes, we propose two new mechanisms to update the reputation of nodes. These new approaches are the authority-based update mechanism (AUM) and the election-based update mechanism (EUM). We show how the model checker UPPAAL can be used to analyze the spatiotemporal access control model of an application. Finally, we also implement a prototype system to demonstrate the efficiency of our model. PMID:25177731

  19. Spatiotemporal access model based on reputation for the sensing layer of the IoT.

    PubMed

    Guo, Yunchuan; Yin, Lihua; Li, Chao; Qian, Junyan

    2014-01-01

    Access control is a key technology in providing security in the Internet of Things (IoT). The mainstream security approach proposed for the sensing layer of the IoT concentrates only on authentication while ignoring the more general models. Unreliable communications and resource constraints make the traditional access control techniques barely meet the requirements of the sensing layer of the IoT. In this paper, we propose a model that combines space and time with reputation to control access to the information within the sensing layer of the IoT. This model is called spatiotemporal access control based on reputation (STRAC). STRAC uses a lattice-based approach to decrease the size of policy bases. To solve the problem caused by unreliable communications, we propose both nondeterministic authorizations and stochastic authorizations. To more precisely manage the reputation of nodes, we propose two new mechanisms to update the reputation of nodes. These new approaches are the authority-based update mechanism (AUM) and the election-based update mechanism (EUM). We show how the model checker UPPAAL can be used to analyze the spatiotemporal access control model of an application. Finally, we also implement a prototype system to demonstrate the efficiency of our model. PMID:25177731

  20. Role-based access control model for GIS

    NASA Astrophysics Data System (ADS)

    Pan, Yuqing; Sheng, Yehua; Zhou, Jieyu

    2007-06-01

    Access control of Geographical Information System (GIS) has more complex spatial constraints than the general MIS system, it makes the classic role-based access control model(RBAC) can't be used in GIS. To achieve an effective Access Control Model for GIS, an extension model of the RBAC is presented in the paper. Firstly, this paper introduce the three kinds spatial constraints that included layer constraints, region constraints and spatial object constraints; Then the paper expanded the basic RBAC model, added regional class, layers class and so on; Finally, the paper has given the system RABC control model as well as the realization method in view of GIS. An extension model of the RBAC is applicable to mobile computing, wireless access and system about location is concluded by analyzing.

  1. Assessment of genetic diversity of accessions in Brassicaceae genetic resources by frequency distribution analysis of S haplotypes.

    PubMed

    Takuno, S; Oikawa, E; Kitashiba, H; Nishio, T

    2010-04-01

    Plant genetic resources are important sources of genetic variation for improving crop varieties as breeding materials. Conservation of such resources of allogamous species requires maintenance of the genetic diversity within each accession to avoid inbreeding depression and loss of rare alleles. For assessment of genetic diversity in the self-incompatibility locus (S locus), which is critically involved in the chance of mating, we developed a dot-blot genotyping method for self-incompatibility (S) haplotypes and applied it to indigenous, miscellaneous landraces of Brassica rapa, provided by the IPK Gene Bank (Gatersleben, Germany) and the Tohoku University Brassica Seed Bank (Sendai, Japan), in which landraces are maintained using different population sizes. This method effectively determined S genotypes of more than 500 individuals from the focal landraces. Although our results suggest that these landraces might possess sufficient numbers of S haplotypes, the strong reduction of frequencies of recessive S haplotypes occurred, probably owing to genetic drift. Based on these results, we herein discuss an appropriate way to conserve genetic diversity of allogamous plant resources in a gene bank.

  2. Open access resources for genome-wide association mapping in rice.

    PubMed

    McCouch, Susan R; Wright, Mark H; Tung, Chih-Wei; Maron, Lyza G; McNally, Kenneth L; Fitzgerald, Melissa; Singh, Namrata; DeClerck, Genevieve; Agosto-Perez, Francisco; Korniliev, Pavel; Greenberg, Anthony J; Naredo, Ma Elizabeth B; Mercado, Sheila Mae Q; Harrington, Sandra E; Shi, Yuxin; Branchini, Darcy A; Kuser-Falcão, Paula R; Leung, Hei; Ebana, Kowaru; Yano, Masahiro; Eizenga, Georgia; McClung, Anna; Mezey, Jason

    2016-01-01

    Increasing food production is essential to meet the demands of a growing human population, with its rising income levels and nutritional expectations. To address the demand, plant breeders seek new sources of genetic variation to enhance the productivity, sustainability and resilience of crop varieties. Here we launch a high-resolution, open-access research platform to facilitate genome-wide association mapping in rice, a staple food crop. The platform provides an immortal collection of diverse germplasm, a high-density single-nucleotide polymorphism data set tailored for gene discovery, well-documented analytical strategies, and a suite of bioinformatics resources to facilitate biological interpretation. Using grain length, we demonstrate the power and resolution of our new high-density rice array, the accompanying genotypic data set, and an expanded diversity panel for detecting major and minor effect QTLs and subpopulation-specific alleles, with immediate implications for rice improvement. PMID:26842267

  3. Open access resources for genome-wide association mapping in rice

    PubMed Central

    McCouch, Susan R.; Wright, Mark H.; Tung, Chih-Wei; Maron, Lyza G.; McNally, Kenneth L.; Fitzgerald, Melissa; Singh, Namrata; DeClerck, Genevieve; Agosto-Perez, Francisco; Korniliev, Pavel; Greenberg, Anthony J.; Naredo, Ma. Elizabeth B.; Mercado, Sheila Mae Q.; Harrington, Sandra E.; Shi, Yuxin; Branchini, Darcy A.; Kuser-Falcão, Paula R.; Leung, Hei; Ebana, Kowaru; Yano, Masahiro; Eizenga, Georgia; McClung, Anna; Mezey, Jason

    2016-01-01

    Increasing food production is essential to meet the demands of a growing human population, with its rising income levels and nutritional expectations. To address the demand, plant breeders seek new sources of genetic variation to enhance the productivity, sustainability and resilience of crop varieties. Here we launch a high-resolution, open-access research platform to facilitate genome-wide association mapping in rice, a staple food crop. The platform provides an immortal collection of diverse germplasm, a high-density single-nucleotide polymorphism data set tailored for gene discovery, well-documented analytical strategies, and a suite of bioinformatics resources to facilitate biological interpretation. Using grain length, we demonstrate the power and resolution of our new high-density rice array, the accompanying genotypic data set, and an expanded diversity panel for detecting major and minor effect QTLs and subpopulation-specific alleles, with immediate implications for rice improvement. PMID:26842267

  4. Retail redlining in New York City: racialized access to day-to-day retail resources.

    PubMed

    Kwate, Naa Oyo A; Loh, Ji Meng; White, Kellee; Saldana, Nelson

    2013-08-01

    Racial residential segregation is associated with health inequalities in the USA, and one of the primary mechanisms is through influencing features of the neighborhood physical environment. To better understand how Black residential segregation might contribute to health risk, we examined retail redlining; the inequitable distribution of retail resources across racially distinct areas. A combination of visual and analytic methods was used to investigate whether predominantly Black census block groups in New York City had poor access to retail stores important for health. After controlling for retail demand, median household income, population density, and subway ridership, percent Black was associated with longer travel distances to various retail industries. Our findings suggest that Black neighborhoods in New York City face retail redlining. Future research is needed to determine how retail redlining may perpetuate health disparities and socioeconomic disadvantage.

  5. Open access resources for genome-wide association mapping in rice.

    PubMed

    McCouch, Susan R; Wright, Mark H; Tung, Chih-Wei; Maron, Lyza G; McNally, Kenneth L; Fitzgerald, Melissa; Singh, Namrata; DeClerck, Genevieve; Agosto-Perez, Francisco; Korniliev, Pavel; Greenberg, Anthony J; Naredo, Ma Elizabeth B; Mercado, Sheila Mae Q; Harrington, Sandra E; Shi, Yuxin; Branchini, Darcy A; Kuser-Falcão, Paula R; Leung, Hei; Ebana, Kowaru; Yano, Masahiro; Eizenga, Georgia; McClung, Anna; Mezey, Jason

    2016-01-01

    Increasing food production is essential to meet the demands of a growing human population, with its rising income levels and nutritional expectations. To address the demand, plant breeders seek new sources of genetic variation to enhance the productivity, sustainability and resilience of crop varieties. Here we launch a high-resolution, open-access research platform to facilitate genome-wide association mapping in rice, a staple food crop. The platform provides an immortal collection of diverse germplasm, a high-density single-nucleotide polymorphism data set tailored for gene discovery, well-documented analytical strategies, and a suite of bioinformatics resources to facilitate biological interpretation. Using grain length, we demonstrate the power and resolution of our new high-density rice array, the accompanying genotypic data set, and an expanded diversity panel for detecting major and minor effect QTLs and subpopulation-specific alleles, with immediate implications for rice improvement.

  6. Vibroacoustic payload environment prediction system (VAPEPS): Data base management center remote access guide

    NASA Technical Reports Server (NTRS)

    Thomas, V. C.

    1986-01-01

    A Vibroacoustic Data Base Management Center has been established at the Jet Propulsion Laboratory (JPL). The center utilizes the Vibroacoustic Payload Environment Prediction System (VAPEPS) software package to manage a data base of shuttle and expendable launch vehicle flight and ground test data. Remote terminal access over telephone lines to a dedicated VAPEPS computer system has been established to provide the payload community a convenient means of querying the global VAPEPS data base. This guide describes the functions of the JPL Data Base Management Center and contains instructions for utilizing the resources of the center.

  7. Breaking and Fixing Origin-Based Access Control in Hybrid Web/Mobile Application Frameworks.

    PubMed

    Georgiev, Martin; Jana, Suman; Shmatikov, Vitaly

    2014-02-01

    Hybrid mobile applications (apps) combine the features of Web applications and "native" mobile apps. Like Web applications, they are implemented in portable, platform-independent languages such as HTML and JavaScript. Like native apps, they have direct access to local device resources-file system, location, camera, contacts, etc. Hybrid apps are typically developed using hybrid application frameworks such as PhoneGap. The purpose of the framework is twofold. First, it provides an embedded Web browser (for example, WebView on Android) that executes the app's Web code. Second, it supplies "bridges" that allow Web code to escape the browser and access local resources on the device. We analyze the software stack created by hybrid frameworks and demonstrate that it does not properly compose the access-control policies governing Web code and local code, respectively. Web code is governed by the same origin policy, whereas local code is governed by the access-control policy of the operating system (for example, user-granted permissions in Android). The bridges added by the framework to the browser have the same local access rights as the entire application, but are not correctly protected by the same origin policy. This opens the door to fracking attacks, which allow foreign-origin Web content included into a hybrid app (e.g., ads confined in iframes) to drill through the layers and directly access device resources. Fracking vulnerabilities are generic: they affect all hybrid frameworks, all embedded Web browsers, all bridge mechanisms, and all platforms on which these frameworks are deployed. We study the prevalence of fracking vulnerabilities in free Android apps based on the PhoneGap framework. Each vulnerability exposes sensitive local resources-the ability to read and write contacts list, local files, etc.-to dozens of potentially malicious Web domains. We also analyze the defenses deployed by hybrid frameworks to prevent resource access by foreign-origin Web content

  8. Breaking and Fixing Origin-Based Access Control in Hybrid Web/Mobile Application Frameworks.

    PubMed

    Georgiev, Martin; Jana, Suman; Shmatikov, Vitaly

    2014-02-01

    Hybrid mobile applications (apps) combine the features of Web applications and "native" mobile apps. Like Web applications, they are implemented in portable, platform-independent languages such as HTML and JavaScript. Like native apps, they have direct access to local device resources-file system, location, camera, contacts, etc. Hybrid apps are typically developed using hybrid application frameworks such as PhoneGap. The purpose of the framework is twofold. First, it provides an embedded Web browser (for example, WebView on Android) that executes the app's Web code. Second, it supplies "bridges" that allow Web code to escape the browser and access local resources on the device. We analyze the software stack created by hybrid frameworks and demonstrate that it does not properly compose the access-control policies governing Web code and local code, respectively. Web code is governed by the same origin policy, whereas local code is governed by the access-control policy of the operating system (for example, user-granted permissions in Android). The bridges added by the framework to the browser have the same local access rights as the entire application, but are not correctly protected by the same origin policy. This opens the door to fracking attacks, which allow foreign-origin Web content included into a hybrid app (e.g., ads confined in iframes) to drill through the layers and directly access device resources. Fracking vulnerabilities are generic: they affect all hybrid frameworks, all embedded Web browsers, all bridge mechanisms, and all platforms on which these frameworks are deployed. We study the prevalence of fracking vulnerabilities in free Android apps based on the PhoneGap framework. Each vulnerability exposes sensitive local resources-the ability to read and write contacts list, local files, etc.-to dozens of potentially malicious Web domains. We also analyze the defenses deployed by hybrid frameworks to prevent resource access by foreign-origin Web content

  9. Resources

    MedlinePlus

    ... Breastfeeding - resources Bulimia - resources Burns - resources Cancer - resources Cerebral palsy - resources Celiac disease - resources Child abuse - resources Chronic fatigue syndrome - resources Chronic pain - ...

  10. Medical student's access to information and resources for the residency selection process.

    PubMed

    Taggart, M P; Wartman, S A; Wessen, A F

    1988-01-01

    In the study reported here, the authors analyzed senior medical students' attitudes regarding the availability of information and resources pertaining to the residency selection process. Results of a nationwide survey of students showed that when the students had access to information from medical professionals (that is, faculty members, deans, house staff physicians), they felt they had greater access to information than did students who made greater use of other sources (official directories, classmates and the "grapevine"). Furthermore, the findings suggest that greater availability of information from medical professionals was related to higher levels of overall satisfaction with the residency match. While no evidence is presented that demonstrates that medical school faculty members and administrators were unwilling to devote attention to any particular group of students, the data suggest that these professionals provided information regarding the residency selection process more often to medical students at high-prestige schools, students who chose high-prestige specialties, and students who perceived themselves as having high class rank than to other students. Also, students in publicly supported schools felt the cost of travel for interviews to be more burdensome than did the students in private schools.

  11. XML-based resources for simulation

    SciTech Connect

    Kelsey, R. L.; Riese, J. M.; Young, G. A.

    2004-01-01

    As simulations and the machines they run on become larger and more complex the inputs and outputs become more unwieldy. Increased complexity makes the setup of simulation problems difficult. It also contributes to the burden of handling and analyzing large amounts of output results. Another problem is that among a class of simulation codes (such as those for physical system simulation) there is often no single standard format or resource for input data. To run the same problem on different simulations requires a different setup for each simulation code. The extensible Markup Language (XML) is used to represent a general set of data resources including physical system problems, materials, and test results. These resources provide a 'plug and play' approach to simulation setup. For example, a particular material for a physical system can be selected from a material database. The XML-based representation of the selected material is then converted to the native format of the simulation being run and plugged into the simulation input file. In this manner a user can quickly and more easily put together a simulation setup. In the case of output data, an XML approach to regression testing includes tests and test results with XML-based representations. This facilitates the ability to query for specific tests and make comparisons between results. Also, output results can easily be converted to other formats for publishing online or on paper.

  12. Access Control for Agent-based Computing: A Distributed Approach.

    ERIC Educational Resources Information Center

    Antonopoulos, Nick; Koukoumpetsos, Kyriakos; Shafarenko, Alex

    2001-01-01

    Discusses the mobile software agent paradigm that provides a foundation for the development of high performance distributed applications and presents a simple, distributed access control architecture based on the concept of distributed, active authorization entities (lock cells), any combination of which can be referenced by an agent to provide…

  13. Mobile Access to the Internet: A Mediator-Based Solution.

    ERIC Educational Resources Information Center

    Alanko, Timo; Kojo, Markku; Liljeberg, Mika; Raatikainen, Kimmo

    1999-01-01

    Provides an overview of problems related to wireless mobility, specifically the use of cellular telephones to access remote information stores, such as the Internet, and computing services. Presents a new software architecture and discusses a new paradigm for designing mobile-distributed applications based on a mediator, a distributed intelligent…

  14. Object based data access at the D0 experiment

    SciTech Connect

    Fuess, S.; D0 Collaboration

    1995-11-01

    The D{O} Experiment at Fermilab is currently participating in the FNAL Computing Division`s ``Computing for Analysis Project`` (CAP) to investigate object based data storage and access. Following a short description of the CAP system architecture, the D{O} data model is explored. A brief discussion of the method of operation of the CAP system leads into a concluding section.

  15. Towards pathogenomics: a web-based resource for pathogenicity islands.

    PubMed

    Yoon, Sung Ho; Park, Young-Kyu; Lee, Soohyun; Choi, Doil; Oh, Tae Kwang; Hur, Cheol-Goo; Kim, Jihyun F

    2007-01-01

    Pathogenicity islands (PAIs) are genetic elements whose products are essential to the process of disease development. They have been horizontally (laterally) transferred from other microbes and are important in evolution of pathogenesis. In this study, a comprehensive database and search engines specialized for PAIs were established. The pathogenicity island database (PAIDB) is a comprehensive relational database of all the reported PAIs and potential PAI regions which were predicted by a method that combines feature-based analysis and similarity-based analysis. Also, using the PAI Finder search application, a multi-sequence query can be analyzed onsite for the presence of potential PAIs. As of April 2006, PAIDB contains 112 types of PAIs and 889 GenBank accessions containing either partial or all PAI loci previously reported in the literature, which are present in 497 strains of pathogenic bacteria. The database also offers 310 candidate PAIs predicted from 118 sequenced prokaryotic genomes. With the increasing number of prokaryotic genomes without functional inference and sequenced genetic regions of suspected involvement in diseases, this web-based, user-friendly resource has the potential to be of significant use in pathogenomics. PAIDB is freely accessible at http://www.gem.re.kr/paidb.

  16. GANGA: A tool for computational-task management and easy access to Grid resources

    NASA Astrophysics Data System (ADS)

    Mościcki, J. T.; Brochu, F.; Ebke, J.; Egede, U.; Elmsheuser, J.; Harrison, K.; Jones, R. W. L.; Lee, H. C.; Liko, D.; Maier, A.; Muraru, A.; Patrick, G. N.; Pajchel, K.; Reece, W.; Samset, B. H.; Slater, M. W.; Soroko, A.; Tan, C. L.; van der Ster, D. C.; Williams, M.

    2009-11-01

    Grids. Solution method: High-level job management interface, including command line, scripting and GUI components. Restrictions: Access to the distributed resources depends on the installed, 3rd party software such as batch system client or Grid user interface.

  17. Digital Watermarks Enabling E-Commerce Strategies: Conditional and User Specific Access to Services and Resources

    NASA Astrophysics Data System (ADS)

    Dittmann, Jana; Steinebach, Martin; Wohlmacher, Petra; Ackermann, Ralf

    2002-12-01

    Digital watermarking is well known as enabling technology to prove ownership on copyrighted material, detect originators of illegally made copies, monitor the usage of the copyrighted multimedia data and analyze the spread spectrum of the data over networks and servers. Research has shown that data hiding techniques can be applied successfully to other application areas like manipulations recognition. In this paper, we show our innovative approach for integrating watermark and cryptography based methods within a framework of new application scenarios spanning a wide range from dedicated and user specific services, "Try&Buy" mechanisms to general means for long-term customer relationships. The tremendous recent efforts to develop and deploy ubiquitous mobile communication possibilities are changing the demands but also possibilities for establishing new business and commerce relationships. Especially we motivate annotation watermarks and aspects of M-Commerce to show important scenarios for access control. Based on a description of the challenges of the application domain and our latest work we discuss, which methods can be used for establishing services in a fast convenient and secure way for conditional access services based on digital watermarking combined with cryptographic techniques. We introduce an example scenario for digital audio and an overview of steps in order to establish these concepts practically.

  18. The Genome Sequence DataBase (GSDB): improving data quality and data access.

    PubMed Central

    Harger, C; Skupski, M; Bingham, J; Farmer, A; Hoisie, S; Hraber, P; Kiphart, D; Krakowski, L; McLeod, M; Schwertfeger, J; Seluja, G; Siepel, A; Singh, G; Stamper, D; Steadman, P; Thayer, N; Thompson, R; Wargo, P; Waugh, M; Zhuang, J J; Schad, P A

    1998-01-01

    In 1997 the primary focus of the Genome Sequence DataBase (GSDB; www. ncgr.org/gsdb ) located at the National Center for Genome Resources was to improve data quality and accessibility. Efforts to increase the quality of data within the database included two major projects; one to identify and remove all vector contamination from sequences in the database and one to create premier sequence sets (including both alignments and discontiguous sequences). Data accessibility was improved during the course of the last year in several ways. First, a graphical database sequence viewer was made available to researchers. Second, an update process was implemented for the web-based query tool, Maestro. Third, a web-based tool, Excerpt, was developed to retrieve selected regions of any sequence in the database. And lastly, a GSDB flatfile that contains annotation unique to GSDB (e.g., sequence analysis and alignment data) was developed. Additionally, the GSDB web site provides a tool for the detection of matrix attachment regions (MARs), which can be used to identify regions of high coding potential. The ultimate goal of this work is to make GSDB a more useful resource for genomic comparison studies and gene level studies by improving data quality and by providing data access capabilities that are consistent with the needs of both types of studies. PMID:9399793

  19. Technology for independence: a community-based resource center.

    PubMed

    Blanck, Peter; Ritchie, Heather; Schmeling, James; Klein, David

    2003-01-01

    Despite the prominence of the disability civil rights model--with its values of inclusion and empowerment--the majority of social and policy research conducted to date has not sufficiently included the perspective of persons with disabilities in the research process and as uniquely qualified researchers themselves. This article describes a new project, "Technology for Independence: A Community-Based Resource Center" (CBRC). Over a five-year period, the CBRC will attempt to enhance community and consumer-directed disability organizations to design, implement, and disseminate research that promotes access to and use of assistive technology (AT). The CBRC will use strategies such as leadership training, participatory action research, technical assistance, web-assisted training, and annual symposia. A primary goal of the CBRC is to increase the capacity of community organizations to conduct research on AT that is scientifically rigorous and relevant to disability services, policy, and law.

  20. A replacement strategy for a distributed caching system based on the spatiotemporal access pattern of geospatial data

    NASA Astrophysics Data System (ADS)

    Li, R.; Wang, X.; Shi, X.

    2014-04-01

    Cache replacement strategy is the core for a distributed high-speed caching system, and effects the cache hit rate and utilization of a limited cache space directly. Many reports show that there are temporal and spatial local changes in access patterns of geospatial data, and there are popular hot spots which change over time. Therefore, the key issue for cache replacement strategy for geospatial data is to get a combination method which considers both temporal local changes and spatial local changes in access patterns, and balance the relationship between the changes. And the cache replacement strategy should fit the distribution and changes of hotspot. This paper proposes a cache replacement strategy based on access pattern which have access spatiotemporal localities. Firstly, the strategy builds a method to express the access frequency and the time interval for geospatial data access based on a least-recently-used replacement (LRU) algorithm and its data structure; secondly, considering both the spatial correlation between geospatial data access and the caching location for geospatial data, it builds access sequences based on a LRU stack, which reflect the spatiotemporal locality changes in access pattern. Finally, for achieving the aim of balancing the temporal locality and spatial locality changes in access patterns, the strategy chooses the replacement objects based on the length of access sequences and the cost of caching resource consumption. Experimental results reveal that the proposed cache replacement strategy is able to improve the cache hit rate while achieving a good response performance and higher system throughput. Therefore, it can be applied to handle the intensity of networked GISs data access requests in a cloud-based environment.

  1. Negotiating Power and Access to Second Language Resources: A Study on Short-Term Chinese MBA Students in America

    ERIC Educational Resources Information Center

    Shi, Xingsong

    2011-01-01

    By looking into a group of 13 Chinese master's in business administration students' study abroad experience in the United States, this study contends that being situated in the second language (L2) communicative context does not guarantee international students complete access to language and cultural resources in the host society. Due to limited…

  2. Metro-access integrated network based on optical OFDMA with dynamic sub-carrier allocation and power distribution.

    PubMed

    Zhang, Chongfu; Zhang, Qiongli; Chen, Chen; Jiang, Ning; Liu, Deming; Qiu, Kun; Liu, Shuang; Wu, Baojian

    2013-01-28

    We propose and demonstrate a novel optical orthogonal frequency-division multiple access (OFDMA)-based metro-access integrated network with dynamic resource allocation. It consists of a single fiber OFDMA ring and many single fiber OFDMA trees, which transparently integrates metropolitan area networks with optical access networks. The single fiber OFDMA ring connects the core network and the central nodes (CNs), the CNs are on demand reconfigurable and use multiple orthogonal sub-carriers to realize parallel data transmission and dynamic resource allocation, meanwhile, they can also implement flexible power distribution. The remote nodes (RNs) distributed in the user side are connected by the single fiber OFDMA trees with the corresponding CN. The obtained results indicate that our proposed metro-access integrated network is feasible and the power distribution is agile.

  3. Learning to Thrive: Building Diverse Scientists’ Access to Community and Resources through the BRAINS Program

    PubMed Central

    Margherio, Cara; Horner-Devine, M. Claire; Mizumori, Sheri J. Y.; Yen, Joyce W.

    2016-01-01

    BRAINS: Broadening the Representation of Academic Investigators in NeuroScience is a National Institutes of Health–funded, national program that addresses challenges to the persistence of diverse early-career neuroscientists. In doing so, BRAINS aims to advance diversity in neuroscience by increasing career advancement and retention of post-PhD, early-career neuroscientists from underrepresented groups (URGs). The comprehensive professional development program is structured to catalyze conversations specific to URGs in neuroscience and explicitly addresses factors known to impact persistence such as a weak sense of belonging to the scientific community, isolation and solo status, inequitable access to resources that impact career success, and marginalization from informal networks and mentoring relationships. While we do not yet have data on the long-term impact of the BRAINS program on participants’ career trajectory and persistence, we introduce the BRAINS program theory and report early quantitative and qualitative data on shorter-term individual impacts within the realms of career-advancing behaviors and career experiences. These early results suggest promising, positive career productivity, increased self-efficacy, stronger sense of belonging, and new perspectives on navigating careers for BRAINS participants. We finish by discussing recommendations for future professional development programs and research designed to broaden participation in the biomedical and life sciences. PMID:27587858

  4. Resource allocation and purchasing arrangements to improve accessibility of medicines: Evidence from Iran

    PubMed Central

    Bastani, Peivand; Mehralian, Gholamhossein; Dinarvand, Rasoul

    2015-01-01

    Objective: The aim of this study was to review the current methods of pharmaceutical purchasing by Iranian insurance organizations within the World Bank conceptual framework model so as to provide applicable pharmaceutical resource allocation and purchasing (RAP) arrangements in Iran. Methods: This qualitative study was conducted through a qualitative document analysis (QDA), applying the four-step Scott method in document selection, and conducting 20 semi-structured interviews using a triangulation method. Furthermore, the data were analyzed applying five steps framework analysis using Atlas-ti software. Findings: The QDA showed that the purchasers face many structural, financing, payment, delivery and service procurement and purchasing challenges. Moreover, the findings of interviews are provided in three sections including demand-side, supply-side and price and incentive regime. Conclusion: Localizing RAP arrangements as a World Bank Framework in a developing country like Iran considers the following as the prerequisite for implementing strategic purchasing in pharmaceutical sector: The improvement of accessibility, subsidiary mechanisms, reimbursement of new drugs, rational use, uniform pharmacopeia, best supplier selection, reduction of induced demand and moral hazard, payment reform. It is obvious that for Iran, these customized aspects are more various and detailed than those proposed in a World Bank model for developing countries. PMID:25710045

  5. The expanding medical and behavioral resources with access to care for everyone health plan.

    PubMed

    Lancaster, Gilead I; O'Connell, Ryan; Katz, David L; Manson, JoAnn E; Hutchison, William R; Landau, Charles; Yonkers, Kimberly A

    2009-04-01

    Healthcare Professionals for Healthcare Reform is a group of physicians and others interested in health care reform who, recognizing the urgent need for change, convened to propose a universal health care plan that builds on the strengths of the U.S. health care system and improves on its coverage, efficiency, and capacity for patient choice. The group proposes a tiered plan, the core of which (Tier 1) would be lifetime, basic, publicly funded coverage for the entire population on the basis of the best evidence about which therapies are considered life saving, life-sustaining, or preventive. Optional coverage (Tier 2) would be funded by private insurance and cover all therapies considered to help with quality of life and functional impairment. Items considered to be luxury or cosmetic (Tier 3) would generally not be covered, as is the case under the current system. The entire system would be overseen by a quasi-governmental, largely independent organization known as "The Board," which would resemble the Federal Reserve and interact with U.S. Department of Health and Human Services agencies to oversee implementation and coverage. By building on the current health care system while introducing other features and efficiencies, the Expanding Medical and Behavioral Resources with Access to Care for Everyone (EMBRACE) plan for universal health insurance coverage offers several advantages over alternative plans that have been proposed.

  6. Accessing resources for identity development by urban students and teachers: foregrounding context

    NASA Astrophysics Data System (ADS)

    Luehmann, April Lynn

    2009-03-01

    Many attempt to address the documented achievement gap between urban and suburban students by offering special programs to enrich urban students' academic experiences and proficiencies. Such was the case in the study described by DeGennaro and Brown in which urban students participated in an after-school technology course intended to address the "digital divide" by giving these youth supported experiences as technology users. However, also like the initial situation described in this study, instructional design that does not capitalize on what we know about urban education or informal learning contexts can actually further damage urban youths' identities as learners by positioning them as powerless and passive recipients instead of meaningful contributors to their own learning. The analysis presented in this forum is intended to further the conversation begun by DeGennaro and Brown by explicitly complexifying our consideration of context (activity structures and setting) so as to support the development of contexts that afford rich learning potential for both the urban students and their learning facilitators, positioned in the role of teachers. Carefully constructed contexts can afford participants as learners (urban students and teachers) opportunities to access rich identity resources (not typically available in traditional school contexts) including, but not limited to, the opportunity to exercise agency that allows participants to reorganize their learning context and enacted culture as needed.

  7. A Rewritable, Random-Access DNA-Based Storage System

    NASA Astrophysics Data System (ADS)

    Tabatabaei Yazdi, S. M. Hossein; Yuan, Yongbo; Ma, Jian; Zhao, Huimin; Milenkovic, Olgica

    2015-09-01

    We describe the first DNA-based storage architecture that enables random access to data blocks and rewriting of information stored at arbitrary locations within the blocks. The newly developed architecture overcomes drawbacks of existing read-only methods that require decoding the whole file in order to read one data fragment. Our system is based on new constrained coding techniques and accompanying DNA editing methods that ensure data reliability, specificity and sensitivity of access, and at the same time provide exceptionally high data storage capacity. As a proof of concept, we encoded parts of the Wikipedia pages of six universities in the USA, and selected and edited parts of the text written in DNA corresponding to three of these schools. The results suggest that DNA is a versatile media suitable for both ultrahigh density archival and rewritable storage applications.

  8. A Rewritable, Random-Access DNA-Based Storage System.

    PubMed

    Yazdi, S M Hossein Tabatabaei; Yuan, Yongbo; Ma, Jian; Zhao, Huimin; Milenkovic, Olgica

    2015-01-01

    We describe the first DNA-based storage architecture that enables random access to data blocks and rewriting of information stored at arbitrary locations within the blocks. The newly developed architecture overcomes drawbacks of existing read-only methods that require decoding the whole file in order to read one data fragment. Our system is based on new constrained coding techniques and accompanying DNA editing methods that ensure data reliability, specificity and sensitivity of access, and at the same time provide exceptionally high data storage capacity. As a proof of concept, we encoded parts of the Wikipedia pages of six universities in the USA, and selected and edited parts of the text written in DNA corresponding to three of these schools. The results suggest that DNA is a versatile media suitable for both ultrahigh density archival and rewritable storage applications. PMID:26382652

  9. Type-Based Access Control in Data-Centric Systems

    NASA Astrophysics Data System (ADS)

    Caires, Luís; Pérez, Jorge A.; Seco, João Costa; Vieira, Hugo Torres; Ferrão, Lúcio

    Data-centric multi-user systems, such as web applications, require flexible yet fine-grained data security mechanisms. Such mechanisms are usually enforced by a specially crafted security layer, which adds extra complexity and often leads to error prone coding, easily causing severe security breaches. In this paper, we introduce a programming language approach for enforcing access control policies to data in data-centric programs by static typing. Our development is based on the general concept of refinement type, but extended so as to address realistic and challenging scenarios of permission-based data security, in which policies dynamically depend on the database state, and flexible combinations of column- and row-level protection of data are necessary. We state and prove soundness and safety of our type system, stating that well-typed programs never break the declared data access control policies.

  10. A Rewritable, Random-Access DNA-Based Storage System.

    PubMed

    Yazdi, S M Hossein Tabatabaei; Yuan, Yongbo; Ma, Jian; Zhao, Huimin; Milenkovic, Olgica

    2015-09-18

    We describe the first DNA-based storage architecture that enables random access to data blocks and rewriting of information stored at arbitrary locations within the blocks. The newly developed architecture overcomes drawbacks of existing read-only methods that require decoding the whole file in order to read one data fragment. Our system is based on new constrained coding techniques and accompanying DNA editing methods that ensure data reliability, specificity and sensitivity of access, and at the same time provide exceptionally high data storage capacity. As a proof of concept, we encoded parts of the Wikipedia pages of six universities in the USA, and selected and edited parts of the text written in DNA corresponding to three of these schools. The results suggest that DNA is a versatile media suitable for both ultrahigh density archival and rewritable storage applications.

  11. Breaking and Fixing Origin-Based Access Control in Hybrid Web/Mobile Application Frameworks

    PubMed Central

    Georgiev, Martin; Jana, Suman; Shmatikov, Vitaly

    2014-01-01

    Hybrid mobile applications (apps) combine the features of Web applications and “native” mobile apps. Like Web applications, they are implemented in portable, platform-independent languages such as HTML and JavaScript. Like native apps, they have direct access to local device resources—file system, location, camera, contacts, etc. Hybrid apps are typically developed using hybrid application frameworks such as PhoneGap. The purpose of the framework is twofold. First, it provides an embedded Web browser (for example, WebView on Android) that executes the app's Web code. Second, it supplies “bridges” that allow Web code to escape the browser and access local resources on the device. We analyze the software stack created by hybrid frameworks and demonstrate that it does not properly compose the access-control policies governing Web code and local code, respectively. Web code is governed by the same origin policy, whereas local code is governed by the access-control policy of the operating system (for example, user-granted permissions in Android). The bridges added by the framework to the browser have the same local access rights as the entire application, but are not correctly protected by the same origin policy. This opens the door to fracking attacks, which allow foreign-origin Web content included into a hybrid app (e.g., ads confined in iframes) to drill through the layers and directly access device resources. Fracking vulnerabilities are generic: they affect all hybrid frameworks, all embedded Web browsers, all bridge mechanisms, and all platforms on which these frameworks are deployed. We study the prevalence of fracking vulnerabilities in free Android apps based on the PhoneGap framework. Each vulnerability exposes sensitive local resources—the ability to read and write contacts list, local files, etc.—to dozens of potentially malicious Web domains. We also analyze the defenses deployed by hybrid frameworks to prevent resource access by foreign

  12. Using real-estate-based financing to access capital.

    PubMed

    Tobin, W C; Kryzaniak, L A

    1998-07-01

    One strategy employed by healthcare organizations to increase their market presence is the construction of new facilities. Accessing capital to fund such construction, however, has become more of a challenge. One relatively untapped source of building capital is real-estate-based financing. Nonrecourse mortgages, turnkey net leases, and synthetic leases can provide several advantages to healthcare organizations seeking capital, assuming issues related to building ownership, debt and balance sheet effects, and tax-exempt status have been thoroughly explored first.

  13. Expanded resource base - the key to future geothermal development

    SciTech Connect

    Mock, John E.; Beeland, Gene V.

    1994-01-20

    According to analyses by the Department of Energy’s Energy Information Administration (EIA), geothermal electric power capacity could nearly quadruple over the next 20 years, and there is a tremendous potential for growth in the direct uses of geothermal energy. However, for a high rate of development to occur in either of these applications, the identified resource base must be expanded. To this end, the Department is supporting R&D efforts to 1) share with industry the costs and risks of evaluating promising new resource prospects with power potential; 2) reduce the costs of exploration to enhance industry’s cost-competitive posture; and 3) assess the location and characteristics of low-temperature resources. This paper describes DOE’s new cost-shared industry-coupled exploratory drilling program to be initiated with a solicitation by the Idaho National Engineering Laboratory, field manager of DOE’s reservoir technology activities. Proposals will be requested for drilling either core holes or full-size wells on prospects from which some information had already been gathered, such as surface geophysics or shallow heat flow. The paper also discusses the status of the project designed to demonstrate whether a geothermal reservoir can be identified and adequately evaluated to meet investment requirements with slimholes rather than the much more costly production-size wells. Results to date of testing at the Far West 24 MWe plant site at Steam Boat Hills, Nevada, are reported, and plans for related technology development to make slimhole exploration accessible even to small developers are described. In addition, the paper describes the components of a Low-Temperature Assessment Program and its objectives and identifies the state resource assessment teams. It is concluded that the successful execution of each of these projects will help to ensure a secure future for geothermal energy in this country, thus enhancing the environment wherever geothermal energy

  14. Access to ICT for Teaching and Learning: From Single Artefact to Interrelated Resources

    ERIC Educational Resources Information Center

    Czerniewicz, Laura; Brown, Cheryl

    2005-01-01

    In the past few years, concepts of the digital divide and theories of access to ICT have evolved beyond a focus on the separation of the "haves" and the "have nots" to include more than just physical access to computers. Researchers have started considering the conditions or criteria for access and broadened the concept by…

  15. Equalizing Access to Electronic Networked Resources: A Model for Rural Libraries in the United States.

    ERIC Educational Resources Information Center

    Senkevitch, Judith J.; Wolfram, Dietmar

    1994-01-01

    Provides an overview of the current state of networking technology in rural libraries and describes a model for educating rural librarians in accessing electronic networks. Topics discussed include information needs in rural libraries; telecommunications technology access in rural areas; and examples of services to enhance information access.…

  16. Deprivation amplification revisited; or, is it always true that poorer places have poorer access to resources for healthy diets and physical activity?

    PubMed Central

    Macintyre, Sally

    2007-01-01

    Background It has commonly been suggested (including by this author) that individual or household deprivation (for example, low income) is amplified by area level deprivation (for example, lack of affordable nutritious food or facilities for physical activity in the neighbourhood). Discussion The idea of deprivation amplification has some intuitive attractiveness and helps divert attention away from purely individual determinants of diet and physical activity, and towards health promoting or health damaging features of the physical and social environment. Such environmental features may be modifiable, and environmental changes may help promote healthier behaviors. However, recent empirical examination of the distribution of facilities and resources shows that location does not always disadvantage poorer neighbourhoods. This suggests that we need: a) to ensure that theories and policies are based on up-to-date empirical evidence on the socio-economic distribution of neighbourhood resources, and b) to engage in further research on the relative importance of, and interactions between, individual and environmental factors in shaping behavior. Summary In this debate paper I suggest that it may not always be true that poorer neighbourhoods are more likely to lack health promoting resources, and to be exposed to more health damaging resources. The spatial distribution of environmental resources by area socioeconomic status may vary between types of resource, countries, and time periods. It may also be that the presence or absence of resources is less important than their quality, their social meaning, or local perceptions of their accessibility and relevance. PMID:17683624

  17. Evidence-based medicine: a new tool for resource allocation?

    PubMed

    Nunes, Rui

    2003-01-01

    Evidence-Based Medicine (EBM) is defined as the conscious, and judicious use of current best evidence in making decisions about the care of individual patients. The greater the level of evidence the greater the grade of recommendation. This pioneering explicit concept of EBM is embedded in a particular view of medical practice namely the singular nature of the patient-physician relation and the commitment of the latter towards a specific goal: the treatment and the well being of his or her client. Nevertheless, in many European countries as well as in the United States, this "integration of the best evidence from systematic research with clinical expertise and patient values" appears to be re-interpreted in light of the scarcity of healthcare resources. The purpose of this paper is double. First, to claim that from an ethical perspective EBM should be a guideline to clinical practice; and second, that in specific circumstances EBM might be a useful tool in macro-allocation of healthcare resources. Methodologically the author follows Norman Daniels' theory of "democratic accountability" to justify this assumption. That is, choices in healthcare must be accountable by democratic procedures. This perspective of distributive justice is responsible for the scope and limits of healthcare services. It follows that particular entitlements to healthcare--namely expensive innovative treatments and medicines--may be fairly restricted as long as this decision is socially and democratically accountable and imposed by financial restrictions of the system. In conclusion, the implementation of EBM, as long as it limits the access to drugs and treatments of unproven scientific results is in accordance with this perspective. The use of EBM is regarded as an instrument to facilitate the access of all citizens to a reasonable level of healthcare and to promote the efficiency of the system.

  18. Access Control of Cloud Service Based on UCON

    NASA Astrophysics Data System (ADS)

    Danwei, Chen; Xiuli, Huang; Xunyi, Ren

    Cloud computing is an emerging computing paradigm, and cloud service is also becoming increasingly relevant. Most research communities have recently embarked in the area, and research challenges in every aspect. This paper mainly discusses cloud service security. Cloud service is based on Web Services, and it will face all kinds of security problems including what Web Services face. The development of cloud service closely relates to its security, so the research of cloud service security is a very important theme. This paper introduces cloud computing and cloud service firstly, and then gives cloud services access control model based on UCON and negotiation technologies, and also designs the negotiation module.

  19. Tag Content Access Control with Identity-based Key Exchange

    NASA Astrophysics Data System (ADS)

    Yan, Liang; Rong, Chunming

    2010-09-01

    Radio Frequency Identification (RFID) technology that used to identify objects and users has been applied to many applications such retail and supply chain recently. How to prevent tag content from unauthorized readout is a core problem of RFID privacy issues. Hash-lock access control protocol can make tag to release its content only to reader who knows the secret key shared between them. However, in order to get this shared secret key required by this protocol, reader needs to communicate with a back end database. In this paper, we propose to use identity-based secret key exchange approach to generate the secret key required for hash-lock access control protocol. With this approach, not only back end database connection is not needed anymore, but also tag cloning problem can be eliminated at the same time.

  20. [HUMAN RESOURCES MANAGEMENT BASED ON COMPETENCIES].

    PubMed

    Larumbe Andueza, Ma Carmen; De Mendoza Cánton, Juana Hermoso

    2016-05-01

    We are living in a time with a lot of changes in which health organizations have more challenges to face. One of them is to recognize, strengthen, develop and retain the talent they have. Competency-based human resources management is emerging as a tool that contributes to achieve that aim. Competencies from the generic or characteristic perspective: personality traits, values and motivations, which are deeply rooted in the person. Through elaborating a competencies map for the organization, and identifying the job competencies profile, above all in key jobs, the employees know what it is going to expect from them. After, detect and cover the learning needs, it is possible to achieve better adjust between worker-job. The nursing unit manager is a key job because it is a link between management team and nursing team. The way that it is performed, it will have impact on the quality of care and its team motivation. So, the most adequate person who covers this job would have a part of knowledge, skills, attitudes and compatible interests with her job. Competency-based management helps identify both the potential and learning needs to performing this job. PMID:27405147

  1. [HUMAN RESOURCES MANAGEMENT BASED ON COMPETENCIES].

    PubMed

    Larumbe Andueza, Ma Carmen; De Mendoza Cánton, Juana Hermoso

    2016-05-01

    We are living in a time with a lot of changes in which health organizations have more challenges to face. One of them is to recognize, strengthen, develop and retain the talent they have. Competency-based human resources management is emerging as a tool that contributes to achieve that aim. Competencies from the generic or characteristic perspective: personality traits, values and motivations, which are deeply rooted in the person. Through elaborating a competencies map for the organization, and identifying the job competencies profile, above all in key jobs, the employees know what it is going to expect from them. After, detect and cover the learning needs, it is possible to achieve better adjust between worker-job. The nursing unit manager is a key job because it is a link between management team and nursing team. The way that it is performed, it will have impact on the quality of care and its team motivation. So, the most adequate person who covers this job would have a part of knowledge, skills, attitudes and compatible interests with her job. Competency-based management helps identify both the potential and learning needs to performing this job.

  2. Evaluation of generic medical information accessed via mobile phones at the point of care in resource-limited settings

    PubMed Central

    Goldbach, Hayley; Chang, Aileen Y; Kyer, Andrea; Ketshogileng, Dineo; Taylor, Lynne; Chandra, Amit; Dacso, Matthew; Kung, Shiang-Ju; Rijken, Taatske; Fontelo, Paul; Littman-Quinn, Ryan; Seymour, Anne K; Kovarik, Carrie L

    2014-01-01

    Objective Many mobile phone resources have been developed to increase access to health education in the developing world, yet few studies have compared these resources or quantified their performance in a resource-limited setting. This study aims to compare the performance of resident physicians in answering clinical scenarios using PubMed abstracts accessed via the PubMed for Handhelds (PubMed4Hh) website versus medical/drug reference applications (Medical Apps) accessed via software on the mobile phone. Methods A two-arm comparative study with crossover design was conducted. Subjects, who were resident physicians at the University of Botswana, completed eight scenarios, each with multi-part questions. The primary outcome was a grade for each question. The primary independent variable was the intervention arm and other independent variables included residency and question. Results Within each question type there were significant differences in ‘percentage correct’ between Medical Apps and PubMed4Hh for three of the six types of questions: drug-related, diagnosis/definitions, and treatment/management. Within each of these question types, Medical Apps had a higher percentage of fully correct responses than PubMed4Hh (63% vs 13%, 33% vs 12%, and 41% vs 13%, respectively). PubMed4Hh performed better for epidemiologic questions. Conclusions While mobile access to primary literature remains important and serves an information niche, mobile applications with condensed content may be more appropriate for point-of-care information needs. Further research is required to examine the specific information needs of clinicians in resource-limited settings and to evaluate the appropriateness of current resources in bridging location- and context-specific information gaps. PMID:23535665

  3. Open access for ALICE analysis based on virtualization technology

    NASA Astrophysics Data System (ADS)

    Buncic, P.; Gheata, M.; Schutz, Y.

    2015-12-01

    Open access is one of the important leverages for long-term data preservation for a HEP experiment. To guarantee the usability of data analysis tools beyond the experiment lifetime it is crucial that third party users from the scientific community have access to the data and associated software. The ALICE Collaboration has developed a layer of lightweight components built on top of virtualization technology to hide the complexity and details of the experiment-specific software. Users can perform basic analysis tasks within CernVM, a lightweight generic virtual machine, paired with an ALICE specific contextualization. Once the virtual machine is launched, a graphical user interface is automatically started without any additional configuration. This interface allows downloading the base ALICE analysis software and running a set of ALICE analysis modules. Currently the available tools include fully documented tutorials for ALICE analysis, such as the measurement of strange particle production or the nuclear modification factor in Pb-Pb collisions. The interface can be easily extended to include an arbitrary number of additional analysis modules. We present the current status of the tools used by ALICE through the CERN open access portal, and the plans for future extensions of this system.

  4. The ARAC client system: network-based access to ARAC

    SciTech Connect

    Leach, M J; Sumikawa, D; Webster, C

    1999-07-12

    The ARAC Client System allows users (such as emergency managers and first responders) with commonly available desktop and laptop computers to utilize the central ARAC system over the Internet or any other communications link using Internet protocols. Providing cost-effective fast access to the central ARAC system greatly expands the availability of the ARAC capability. The ARAC Client system consists of (1) local client applications running on the remote user's computer, and (2) ''site servers'' that provide secure access to selected central ARAC system capabilities and run on a scalable number of dedicated workstations residing at the central facility. The remote client applications allow users to describe a real or potential them-bio event, electronically sends this information to the central ARAC system which performs model calculations, and quickly receive and visualize the resulting graphical products. The site servers will support simultaneous access to ARAC capabilities by multiple users. The ARAC Client system is based on object-oriented client/server and distributed computing technologies using CORBA and Java, and consists of a large number of interacting components.

  5. Improving Access to HIV and AIDS Information Resources for Patients, Caregivers, and Clinicians: Results from the SHINE Project

    PubMed Central

    Dixon, Brian E.; Kaneshiro, Kellie

    2012-01-01

    Background Human immunodeficiency virus and acquired immunodeficiency syndrome (HIV/AIDS) remains a significant international public health challenge. The Statewide HIV/AIDS Information Network (SHINE) Project was created to improve HIV/AIDS health information use and access for health care professionals, patients, and affected communities in Indiana. Objective: Our objective was to assess the information-seeking behaviors of health care professionals and consumers who seek information on the testing, treatment, and management of HIV/AIDS and the usability of the SHINE Project’s resources in meeting end user needs. The feedback was designed to help SHINE Project members improve and expand the SHINE Project’s online resources. Methods: A convenience sample of health care professionals and consumers participated in a usability study. Participants were asked to complete typical HIV/AIDS information-seeking tasks using the SHINE Project website. Feedback was provided in the form of standardized questionnaire and usability “think-aloud” responses. Results: Thirteen participants took part in the usability study. Clinicians generally reported the site to be “very good,” while consumers generally found it to be “good.” Health care professionals commented that they lack access to comprehensive resources for treating patients with HIV/AIDS. They requested new electronic resources that could be integrated in clinical practice and existing information technology infrastructures. Consumers found the SHINE website and its collected information resources overwhelming and difficult to navigate. They requested simpler, multimedia-content rich resources to deliver information on HIV/AIDS testing, treatment, and disease management. Conclusions: Accessibility, usability, and user education remain important challenges that public health and information specialists must address when developing and deploying interventions intended to empower consumers and support

  6. Use of Evidence-Based Practice Among Athletic Training Educators, Clinicians, and Students, Part 2: Attitudes, Beliefs, Accessibility, and Barriers

    PubMed Central

    W. McCarty, Cailee; Hankemeier, Dorice A.; Walter, Jessica M.; Newton, Eric J.; Van Lunen, Bonnie L.

    2013-01-01

    Context: Successful implementation of evidence-based practice (EBP) within athletic training is contingent upon understanding the attitudes and beliefs and perceived barriers toward EBP as well as the accessibility to EBP resources of athletic training educators, clinicians, and students. Objective: To assess the attitudes, beliefs, and perceived barriers toward EBP and accessibility to EBP resources among athletic training educators, clinicians, and students. Design: Cross-sectional study. Setting: Online survey instrument. Patients or Other Participants: A total of 1209 athletic trainers participated: professional athletic training education program directors (n = 132), clinical preceptors (n = 266), clinicians (n = 716), postprofessional athletic training educators (n = 24) and postprofessional students (n = 71). Main Outcome Measure(s): Likert-scale items (1 = strongly disagree, 4 = strongly agree) assessed attitudes and beliefs and perceived barriers, whereas multipart questions assessed accessibility to resources. Kruskal-Wallis H tests (P ≤ .05) and Mann-Whitney U tests with a Bonferroni adjustment (P ≤ .01) were used to determine differences among groups. Results: Athletic trainers agreed (3.27 ± 0.39 out of 4.0) that EBP has various benefits to clinical practice and disagreed (2.23 ± 0.42 out of 4.0) that negative perceptions are associated with EBP. Benefits to practice scores (P = .002) and negative perception scores (P < .001) differed among groups. With respect to perceived barriers, athletic trainers disagreed that personal skills and attributes (2.29 ± 0.52 out of 4.0) as well as support and accessibility to resources (2.40 ± 0.40 out of 4.0) were barriers to EBP implementation. Differences were found among groups for personal skills and attributes scores (P < .001) and support and accessibility to resources scores (P < .001). Time (76.6%) and availability of EBP mentors (69.6%) were the 2 most prevalent barriers reported. Of the resources

  7. WormBase: new content and better access

    PubMed Central

    Bieri, Tamberlyn; Blasiar, Darin; Ozersky, Philip; Antoshechkin, Igor; Bastiani, Carol; Canaran, Payan; Chan, Juancarlos; Chen, Nansheng; Chen, Wen J.; Davis, Paul; Fiedler, Tristan J.; Girard, Lisa; Han, Michael; Harris, Todd W.; Kishore, Ranjana; Lee, Raymond; McKay, Sheldon; Müller, Hans-Michael; Nakamura, Cecilia; Petcherski, Andrei; Rangarajan, Arun; Rogers, Anthony; Schindelman, Gary; Schwarz, Erich M.; Spooner, Will; Tuli, Mary Ann; Auken, Kimberly Van; Wang, Daniel; Wang, Xiaodong; Williams, Gary; Durbin, Richard; Stein, Lincoln D.; Sternberg, Paul W.; Spieth, John

    2007-01-01

    WormBase (), a model organism database for Caenorhabditis elegans and other related nematodes, continues to evolve and expand. Over the past year WormBase has added new data on C.elegans, including data on classical genetics, cell biology and functional genomics; expanded the annotation of closely related nematodes with a new genome browser for Caenorhabditis remanei; and deployed new hardware for stronger performance. Several existing datasets including phenotype descriptions and RNAi experiments have seen a large increase in new content. New datasets such as the C.remanei draft assembly and annotations, the Vancouver Fosmid library and TEC-RED 5′ end sites are now available as well. Access to and searching WormBase has become more dependable and flexible via multiple mirror sites and indexing through Google. PMID:17099234

  8. A Statewide Examination of College Access Services and Resources in Virginia

    ERIC Educational Resources Information Center

    Alleman, Nathan F.; Stimpson, Racheal L.; Holly, L. Neal

    2009-01-01

    In the summer of 2008, the Commonwealth of Virginia was awarded a $1.1 million grant from the U. S. Department of Education. The College Access Challenge Grant Program (CACGP) is coordinated through the State Council of Higher Education for Virginia (SCHEV). The focus of the grant is to increase student access to postsecondary education,…

  9. An Ounce of Prevention: Technologists Use Network-Access Control to Protect System Resources, Students

    ERIC Educational Resources Information Center

    Bolch, Matt

    2009-01-01

    Whether for an entire district, a single campus, or one classroom, allowing authorized access to a computer network can be fraught with challenges. The login process should be fairly seamless to approved users, giving them speedy access to approved Web sites, databases, and other sources of information. It also should be tough on unauthorized…

  10. Adaptive Technology for the Internet: Making Electronic Resources Accessible to All.

    ERIC Educational Resources Information Center

    Mates, Barbara T.

    This book seeks to guide information providers in establishing accessible World Wide Web sites and acquiring the hardware and software needed by people with disabilities, focusing on access to the Internet using large print, voice, and Braille. The book also covers how to acquire the funds for adaptive technology, what type of equipment to choose,…

  11. Natural Resources Management: Task Analyses. Competency-Based Education.

    ERIC Educational Resources Information Center

    James Madison Univ., Harrisonburg, VA.

    This task analysis guide is intended to help teachers and administrators develop instructional materials and implement competency-based education for natural resources management courses in the agricultural resources program. Section 1 contains a validated task inventory for natural resources management. For each task, applicable information…

  12. Accessibility and Utilization of WSR-88D Radar Precipitation Data for Natural Resource Modeling Applications

    NASA Astrophysics Data System (ADS)

    Hardegree, S. P.

    2001-12-01

    The National Weather Service (NWS) operates approximately 160 WSR-88D radar-precipitation stations as part of a Next Generation Radar (NEXRAD) program that began implementation in 1992. Among other products, these radar sites provide spatial rainfall estimates, at approximately 4 km2 resolution (Stage 1, Level 3 data), with nominal coverage of 96% of the coterminous United States. Effective coverage is much less than this in a given radar domain depending upon storm type and topography. As the original intent of this network was to support operational objectives of the Departments of Defense, Transportation and Commerce, the production of these data have been optimized for detection and mitigation of severe weather events that might result in flooding, destruction of property and loss of life. The primary hydrologic application has been river and flood forecast modeling by 13 NWS River Forecast Centers (RFC). As each RFC is responsible for a large river drainage, data processing and quality control of these data are geared toward optimization over a relatively large spatial domain (>100,000 km2). Use of these data for other hydrologic and natural resource applications is hampered by a lack of tools for data access and manipulation. NWRC has modified decoding and geo-referencing programs to facilitate utilization of these data for other research and management applications. Stage 1, Level 3 Digital Precipitation Array (DPA) files were obtained for the Boise, Idaho radar location (CBX) for the period of January 1998 to December 2000. Nine rain-gauge locations in the Reynolds Creek Experimental Watershed and Snake River Birds of Prey National Conservation Area, south of Boise, were georeferenced relative to the CBX Hydrologic Rainfall Analysis Project (HRAP) grid. NEXRAD estimates of total cumulative rainfall at these sites averaged only 20% of that measured by the local gauge network. This underestimate was attributed in the most part to truncation of low intensity

  13. A High Throughput Medium Access Control Implementation Based on IEEE 802.11e Standard

    NASA Astrophysics Data System (ADS)

    Huang, Min Li; Lee, Jin; Setiawan, Hendra; Ochi, Hiroshi; Park, Sin-Chong

    With the growing demand for high-performance multimedia applications over wireless channels, we need to develop a Medium Access Control (MAC) system that supports high throughput and quality of service enhancements. This paper presents the standard analysis, design architecture and design issues leading to the implementation of an IEEE 802.11e based MAC system that supports MAC throughput of over 100Mbps. In order to meet the MAC layer timing constraints, a hardware/software co-design approach is adopted. The proposed MAC architecture is implemented on the Xilinx Virtex-II Pro Field-Programmable Gate Array (FPGA) (XC2VP70-5FF1704C) prototype, and connected to a host computer through an external Universal Serial Bus (USB) interface. The total FPGA resource utilization is 11, 508 out of 33, 088 (34%) available slices. The measured MAC throughput is 100.7Mbps and 109.2Mbps for voice and video access categories, transmitted at a data rate of 260Mbps based on IEEE 802.11n Physical Layer (PHY), using the contention-based hybrid coordination function channel access mechanism.

  14. Genetic Distinctiveness of Rye In situ Accessions from Portugal Unveils a New Hotspot of Unexplored Genetic Resources

    PubMed Central

    Monteiro, Filipa; Vidigal, Patrícia; Barros, André B.; Monteiro, Ana; Oliveira, Hugo R.; Viegas, Wanda

    2016-01-01

    Rye (Secale cereale L.) is a cereal crop of major importance in many parts of Europe and rye breeders are presently very concerned with the restrict pool of rye genetic resources available. Such narrowing of rye genetic diversity results from the presence of “Petkus” pool in most modern rye varieties as well as “Petkus” × “Carsten” heterotic pool in hybrid rye breeding programs. Previous studies on rye's genetic diversity revealed moreover a common genetic background on landraces (ex situ) and cultivars, regardless of breeding level or geographical origin. Thus evaluation of in situ populations is of utmost importance to unveil “on farm” diversity, which is largely undervalued. Here, we perform the first comprehensive assessment of rye's genetic diversity and population structuring using cultivars, ex situ landraces along a comprehensive sampling of in situ accessions from Portugal, through a molecular-directed analysis using SSRs markers. Rye genetic diversity and population structure analysis does not present any geographical trend but disclosed marked differences between genetic backgrounds of in situ accessions and those of cultivars/ex situ collections. Such genetic distinctiveness of in situ accessions highlights their unexplored potential as new genetic resources, which can be used to boost rye breeding strategies and the production of new varieties. Overall, our study successfully demonstrates the high prospective impact of comparing genetic diversity and structure of cultivars, ex situ, and in situ samples in ascertaining the status of plant genetic resources (PGR).

  15. Genetic Distinctiveness of Rye In situ Accessions from Portugal Unveils a New Hotspot of Unexplored Genetic Resources

    PubMed Central

    Monteiro, Filipa; Vidigal, Patrícia; Barros, André B.; Monteiro, Ana; Oliveira, Hugo R.; Viegas, Wanda

    2016-01-01

    Rye (Secale cereale L.) is a cereal crop of major importance in many parts of Europe and rye breeders are presently very concerned with the restrict pool of rye genetic resources available. Such narrowing of rye genetic diversity results from the presence of “Petkus” pool in most modern rye varieties as well as “Petkus” × “Carsten” heterotic pool in hybrid rye breeding programs. Previous studies on rye's genetic diversity revealed moreover a common genetic background on landraces (ex situ) and cultivars, regardless of breeding level or geographical origin. Thus evaluation of in situ populations is of utmost importance to unveil “on farm” diversity, which is largely undervalued. Here, we perform the first comprehensive assessment of rye's genetic diversity and population structuring using cultivars, ex situ landraces along a comprehensive sampling of in situ accessions from Portugal, through a molecular-directed analysis using SSRs markers. Rye genetic diversity and population structure analysis does not present any geographical trend but disclosed marked differences between genetic backgrounds of in situ accessions and those of cultivars/ex situ collections. Such genetic distinctiveness of in situ accessions highlights their unexplored potential as new genetic resources, which can be used to boost rye breeding strategies and the production of new varieties. Overall, our study successfully demonstrates the high prospective impact of comparing genetic diversity and structure of cultivars, ex situ, and in situ samples in ascertaining the status of plant genetic resources (PGR). PMID:27630658

  16. Genetic Distinctiveness of Rye In situ Accessions from Portugal Unveils a New Hotspot of Unexplored Genetic Resources.

    PubMed

    Monteiro, Filipa; Vidigal, Patrícia; Barros, André B; Monteiro, Ana; Oliveira, Hugo R; Viegas, Wanda

    2016-01-01

    Rye (Secale cereale L.) is a cereal crop of major importance in many parts of Europe and rye breeders are presently very concerned with the restrict pool of rye genetic resources available. Such narrowing of rye genetic diversity results from the presence of "Petkus" pool in most modern rye varieties as well as "Petkus" × "Carsten" heterotic pool in hybrid rye breeding programs. Previous studies on rye's genetic diversity revealed moreover a common genetic background on landraces (ex situ) and cultivars, regardless of breeding level or geographical origin. Thus evaluation of in situ populations is of utmost importance to unveil "on farm" diversity, which is largely undervalued. Here, we perform the first comprehensive assessment of rye's genetic diversity and population structuring using cultivars, ex situ landraces along a comprehensive sampling of in situ accessions from Portugal, through a molecular-directed analysis using SSRs markers. Rye genetic diversity and population structure analysis does not present any geographical trend but disclosed marked differences between genetic backgrounds of in situ accessions and those of cultivars/ex situ collections. Such genetic distinctiveness of in situ accessions highlights their unexplored potential as new genetic resources, which can be used to boost rye breeding strategies and the production of new varieties. Overall, our study successfully demonstrates the high prospective impact of comparing genetic diversity and structure of cultivars, ex situ, and in situ samples in ascertaining the status of plant genetic resources (PGR).

  17. Genetic Distinctiveness of Rye In situ Accessions from Portugal Unveils a New Hotspot of Unexplored Genetic Resources.

    PubMed

    Monteiro, Filipa; Vidigal, Patrícia; Barros, André B; Monteiro, Ana; Oliveira, Hugo R; Viegas, Wanda

    2016-01-01

    Rye (Secale cereale L.) is a cereal crop of major importance in many parts of Europe and rye breeders are presently very concerned with the restrict pool of rye genetic resources available. Such narrowing of rye genetic diversity results from the presence of "Petkus" pool in most modern rye varieties as well as "Petkus" × "Carsten" heterotic pool in hybrid rye breeding programs. Previous studies on rye's genetic diversity revealed moreover a common genetic background on landraces (ex situ) and cultivars, regardless of breeding level or geographical origin. Thus evaluation of in situ populations is of utmost importance to unveil "on farm" diversity, which is largely undervalued. Here, we perform the first comprehensive assessment of rye's genetic diversity and population structuring using cultivars, ex situ landraces along a comprehensive sampling of in situ accessions from Portugal, through a molecular-directed analysis using SSRs markers. Rye genetic diversity and population structure analysis does not present any geographical trend but disclosed marked differences between genetic backgrounds of in situ accessions and those of cultivars/ex situ collections. Such genetic distinctiveness of in situ accessions highlights their unexplored potential as new genetic resources, which can be used to boost rye breeding strategies and the production of new varieties. Overall, our study successfully demonstrates the high prospective impact of comparing genetic diversity and structure of cultivars, ex situ, and in situ samples in ascertaining the status of plant genetic resources (PGR). PMID:27630658

  18. Juridical and sociocultural problems on the definition of a law concerning property, usage and access to genetic resources in Colombia.

    PubMed

    Calle, R

    1996-04-01

    The property, usage, and access to genetic resources, is today one of the primary topics in international business, as a result of the strategic importance of the resources for the biotechnology industry. Internationally, the sovereignty that each country has over its natural patrimony is recognized. However, the new laws of international marketing have obligated countries in the process of development, such as Colombia, to adopt and copy a concept of intellectual property on living resources that does not have anything to do with the country's sociocultural identity, and sometimes even does not take into account its material enjoyment. The new juridical movement that treats genetic resources as private property produces a cultural conflict between indigenous populations, Afro-Americans and peasants, because for them the genetic resources are an element of community life. In these communities, knowledge is freely transmitted; it is an understanding that they have to conserve their agricultural customs and the relationship that they have with the environment. They do not recognize the term "property' according to patenting laws. These elements have to be considered, respected, and guaranteed in the laws that recognize the genetic resources in the country. On the other hand, not even countries that are pioneers in biotechnological development can adopt a concept about patents that is in agreement with the particularities that the living materials possess. This is obviously the reason for the numerous discussions on the legal interpretation, as well as complicated debates in court. Confronting that situation, there are countries rich in biodiversity, such as Colombia, but which do not have a proper concept and are not economically strong in the international context. These countries have to copy inadequate protection policies that do not take into account all their rights. This paper describes some of the technical, juridical, and sociocultural difficulties which

  19. Juridical and sociocultural problems on the definition of a law concerning property, usage and access to genetic resources in Colombia.

    PubMed

    Calle, R

    1996-04-01

    The property, usage, and access to genetic resources, is today one of the primary topics in international business, as a result of the strategic importance of the resources for the biotechnology industry. Internationally, the sovereignty that each country has over its natural patrimony is recognized. However, the new laws of international marketing have obligated countries in the process of development, such as Colombia, to adopt and copy a concept of intellectual property on living resources that does not have anything to do with the country's sociocultural identity, and sometimes even does not take into account its material enjoyment. The new juridical movement that treats genetic resources as private property produces a cultural conflict between indigenous populations, Afro-Americans and peasants, because for them the genetic resources are an element of community life. In these communities, knowledge is freely transmitted; it is an understanding that they have to conserve their agricultural customs and the relationship that they have with the environment. They do not recognize the term "property' according to patenting laws. These elements have to be considered, respected, and guaranteed in the laws that recognize the genetic resources in the country. On the other hand, not even countries that are pioneers in biotechnological development can adopt a concept about patents that is in agreement with the particularities that the living materials possess. This is obviously the reason for the numerous discussions on the legal interpretation, as well as complicated debates in court. Confronting that situation, there are countries rich in biodiversity, such as Colombia, but which do not have a proper concept and are not economically strong in the international context. These countries have to copy inadequate protection policies that do not take into account all their rights. This paper describes some of the technical, juridical, and sociocultural difficulties which

  20. ORegAnno: an open-access community-driven resource for regulatory annotation.

    PubMed

    Griffith, Obi L; Montgomery, Stephen B; Bernier, Bridget; Chu, Bryan; Kasaian, Katayoon; Aerts, Stein; Mahony, Shaun; Sleumer, Monica C; Bilenky, Mikhail; Haeussler, Maximilian; Griffith, Malachi; Gallo, Steven M; Giardine, Belinda; Hooghe, Bart; Van Loo, Peter; Blanco, Enrique; Ticoll, Amy; Lithwick, Stuart; Portales-Casamar, Elodie; Donaldson, Ian J; Robertson, Gordon; Wadelius, Claes; De Bleser, Pieter; Vlieghe, Dominique; Halfon, Marc S; Wasserman, Wyeth; Hardison, Ross; Bergman, Casey M; Jones, Steven J M

    2008-01-01

    ORegAnno is an open-source, open-access database and literature curation system for community-based annotation of experimentally identified DNA regulatory regions, transcription factor binding sites and regulatory variants. The current release comprises 30 145 records curated from 922 publications and describing regulatory sequences for over 3853 genes and 465 transcription factors from 19 species. A new feature called the 'publication queue' allows users to input relevant papers from scientific literature as targets for annotation. The queue contains 4438 gene regulation papers entered by experts and another 54 351 identified by text-mining methods. Users can enter or 'check out' papers from the queue for manual curation using a series of user-friendly annotation pages. A typical record entry consists of species, sequence type, sequence, target gene, binding factor, experimental outcome and one or more lines of experimental evidence. An evidence ontology was developed to describe and categorize these experiments. Records are cross-referenced to Ensembl or Entrez gene identifiers, PubMed and dbSNP and can be visualized in the Ensembl or UCSC genome browsers. All data are freely available through search pages, XML data dumps or web services at: http://www.oreganno.org.

  1. Federated access to heterogeneous information resources in the Neuroscience Information Framework (NIF).

    PubMed

    Gupta, Amarnath; Bug, William; Marenco, Luis; Qian, Xufei; Condit, Christopher; Rangarajan, Arun; Müller, Hans Michael; Miller, Perry L; Sanders, Brian; Grethe, Jeffrey S; Astakhov, Vadim; Shepherd, Gordon; Sternberg, Paul W; Martone, Maryann E

    2008-09-01

    The overarching goal of the NIF (Neuroscience Information Framework) project is to be a one-stop-shop for Neuroscience. This paper provides a technical overview of how the system is designed. The technical goal of the first version of the NIF system was to develop an information system that a neuroscientist can use to locate relevant information from a wide variety of information sources by simple keyword queries. Although the user would provide only keywords to retrieve information, the NIF system is designed to treat them as concepts whose meanings are interpreted by the system. Thus, a search for term should find a record containing synonyms of the term. The system is targeted to find information from web pages, publications, databases, web sites built upon databases, XML documents and any other modality in which such information may be published. We have designed a system to achieve this functionality. A central element in the system is an ontology called NIFSTD (for NIF Standard) constructed by amalgamating a number of known and newly developed ontologies. NIFSTD is used by our ontology management module, called OntoQuest to perform ontology-based search over data sources. The NIF architecture currently provides three different mechanisms for searching heterogeneous data sources including relational databases, web sites, XML documents and full text of publications. Version 1.0 of the NIF system is currently in beta test and may be accessed through http://nif.nih.gov.

  2. Federated Access to Heterogeneous Information Resources in the Neuroscience Information Framework (NIF)

    PubMed Central

    Gupta, Amarnath; Bug, William; Marenco, Luis; Qian, Xufei; Condit, Christopher; Rangarajan, Arun; Müller, Hans Michael; Miller, Perry L.; Sanders, Brian; Grethe, Jeffrey S.; Astakhov, Vadim; Shepherd, Gordon; Sternberg, Paul W.; Martone, Maryann E.

    2009-01-01

    The overarching goal of the NIF (Neuroscience Information Framework) project is to be a one-stop-shop for Neuroscience. This paper provides a technical overview of how the system is designed. The technical goal of the first version of the NIF system was to develop an information system that a neuroscientist can use to locate relevant information from a wide variety of information sources by simple keyword queries. Although the user would provide only keywords to retrieve information, the NIF system is designed to treat them as concepts whose meanings are interpreted by the system. Thus, a search for term should find a record containing synonyms of the term. The system is targeted to find information from web pages, publications, databases, web sites built upon databases, XML documents and any other modality in which such information may be published. We have designed a system to achieve this functionality. A central element in the system is an ontology called NIFSTD (for NIF Standard) constructed by amalgamating a number of known and newly developed ontologies. NIFSTD is used by our ontology management module, called OntoQuest to perform ontology-based search over data sources. The NIF architecture currently provides three different mechanisms for searching heterogeneous data sources including relational databases, web sites, XML documents and full text of publications. Version 1.0 of the NIF system is currently in beta test and may be accessed through http://nif.nih.gov. PMID:18958629

  3. ORegAnno: an open-access community-driven resource for regulatory annotation

    PubMed Central

    Griffith, Obi L.; Montgomery, Stephen B.; Bernier, Bridget; Chu, Bryan; Kasaian, Katayoon; Aerts, Stein; Mahony, Shaun; Sleumer, Monica C.; Bilenky, Mikhail; Haeussler, Maximilian; Griffith, Malachi; Gallo, Steven M.; Giardine, Belinda; Hooghe, Bart; Van Loo, Peter; Blanco, Enrique; Ticoll, Amy; Lithwick, Stuart; Portales-Casamar, Elodie; Donaldson, Ian J.; Robertson, Gordon; Wadelius, Claes; De Bleser, Pieter; Vlieghe, Dominique; Halfon, Marc S.; Wasserman, Wyeth; Hardison, Ross; Bergman, Casey M.; Jones, Steven J.M.

    2008-01-01

    ORegAnno is an open-source, open-access database and literature curation system for community-based annotation of experimentally identified DNA regulatory regions, transcription factor binding sites and regulatory variants. The current release comprises 30 145 records curated from 922 publications and describing regulatory sequences for over 3853 genes and 465 transcription factors from 19 species. A new feature called the ‘publication queue’ allows users to input relevant papers from scientific literature as targets for annotation. The queue contains 4438 gene regulation papers entered by experts and another 54 351 identified by text-mining methods. Users can enter or ‘check out’ papers from the queue for manual curation using a series of user-friendly annotation pages. A typical record entry consists of species, sequence type, sequence, target gene, binding factor, experimental outcome and one or more lines of experimental evidence. An evidence ontology was developed to describe and categorize these experiments. Records are cross-referenced to Ensembl or Entrez gene identifiers, PubMed and dbSNP and can be visualized in the Ensembl or UCSC genome browsers. All data are freely available through search pages, XML data dumps or web services at: http://www.oreganno.org. PMID:18006570

  4. Ontology-based federated data access to human studies information.

    PubMed

    Sim, Ida; Carini, Simona; Tu, Samson W; Detwiler, Landon T; Brinkley, James; Mollah, Shamim A; Burke, Karl; Lehmann, Harold P; Chakraborty, Swati; Wittkowski, Knut M; Pollock, Brad H; Johnson, Thomas M; Huser, Vojtech

    2012-01-01

    Human studies are one of the most valuable sources of knowledge in biomedical research, but data about their design and results are currently widely dispersed in siloed systems. Federation of these data is needed to facilitate large-scale data analysis to realize the goals of evidence-based medicine. The Human Studies Database project has developed an informatics infrastructure for federated query of human studies databases, using a generalizable approach to ontology-based data access. Our approach has three main components. First, the Ontology of Clinical Research (OCRe) provides the reference semantics. Second, a data model, automatically derived from OCRe into XSD, maintains semantic synchrony of the underlying representations while facilitating data acquisition using common XML technologies. Finally, the Query Integrator issues queries distributed over the data, OCRe, and other ontologies such as SNOMED in BioPortal. We report on a demonstration of this infrastructure on data acquired from institutional systems and from ClinicalTrials.gov. PMID:23304360

  5. The National Geoelectromagnetic Facility - an open access resource for ultra wideband electromagnetic geophysics (Invited)

    NASA Astrophysics Data System (ADS)

    Schultz, A.; Urquhart, S.; Slater, M.

    2010-12-01

    At present, the US academic community has access to two national electromagnetic (EM) instrument pools that support long-period magnetotelluric (MT) equipment suitable for crust-mantle scale studies. The requirements of near surface geophysics, hydrology, glaciology, as well as the full range of crust and mantle investigations require development of new capabilities in data acquisition with broader frequency bandwidth than these existing units, increased instrument numbers, and concomitant developments in 3D/4D data interpretation. NSF Major Research Instrumentation support has been obtained to meet these requirements by developing an initial set of next-generation instruments as a National Geoelectromagnetic Facility (NGF), available to all PIs on a cost recovery basis, and operated by Oregon State University (OSU). In contrast to existing instruments with data acquisition systems specialized to operate within specific frequency bands and for specific electromagnetic methods, the NGF model "Zen/5" instruments being co-developed by OSU and Zonge Research and Engineering Organization are based on modular receivers with a flexible number of digital and analog input channels, designed to acquire EM data at dc, and from frequencies ranging from micro-Hz to MHz. These systems can be deployed in a compact, low power configuration for extended deployments (e.g. for crust-mantle scale experiments), or in a high frequency sampling mode for near surface work. The NGF is also acquiring controlled source EM transmitters, so that investigators may carry out magnetotelluric, audio-MT, radiofrequency-MT, as well as time-domain/transient EM and DC resistivity studies. The instruments are designed to simultaneously accommodate multiple electric field dipole sensors, magnetic fluxgates and induction coil sensors. Sample rates as high as 2.5 MHz with resolution between 24 and 32 bits, depending on sample rate, are specified to allow for high fidelity recording of waveforms. The NGF

  6. Adaptation of AMO-FBMC-OQAM in optical access network for accommodating asynchronous multiple access in OFDM-based uplink transmission

    NASA Astrophysics Data System (ADS)

    Jung, Sun-Young; Jung, Sang-Min; Han, Sang-Kook

    2015-01-01

    Exponentially expanding various applications in company with proliferation of mobile devices make mobile traffic exploded annually. For future access network, bandwidth efficient and asynchronous signals converged transmission technique is required in optical network to meet a huge bandwidth demand, while integrating various services and satisfying multiple access in perceived network resource. Orthogonal frequency division multiplexing (OFDM) is highly bandwidth efficient parallel transmission technique based on orthogonal subcarriers. OFDM has been widely studied in wired-/wireless communication and became a Long term evolution (LTE) standard. Consequently, OFDM also has been actively researched in optical network. However, OFDM is vulnerable frequency and phase offset essentially because of its sinc-shaped side lobes, therefore tight synchronism is necessary to maintain orthogonality. Moreover, redundant cyclic prefix (CP) is required in dispersive channel. Additionally, side lobes act as interference among users in multiple access. Thus, it practically hinders from supporting integration of various services and multiple access based on OFDM optical transmission In this paper, adaptively modulated optical filter bank multicarrier system with offset QAM (AMO-FBMC-OQAM) is introduced and experimentally investigated in uplink optical transmission to relax multiple access interference (MAI), while improving bandwidth efficiency. Side lobes are effectively suppressed by using FBMC, therefore the system becomes robust to path difference and imbalance among optical network units (ONUs), which increase bandwidth efficiency by reducing redundancy. In comparison with OFDM, a signal performance and an efficiency of frequency utilization are improved in the same experimental condition. It enables optical network to effectively support heterogeneous services and multiple access.

  7. Extending a Role Graph for Role-Based Access Control

    NASA Astrophysics Data System (ADS)

    Asakura, Yoshiharu; Nakamoto, Yukikazu

    Role-based access control (RBAC) is widely used as an access control mechanism in various computer systems. Since an organization's lines of authority influence the authorized privileges of jobs, roles also form a hierarchical structure. A role graph is a model that represents role hierarchies and is suitable for the runtime phase of RBAC deployment. Since a role graph cannot take various forms for given roles and cannot handle abstraction of roles well, however, it is not suitable for the design phase of RBAC deployment. Hence, an extended role graph, which can take a more flexible form than that of a role graph, is proposed. The extended role graph improves diversity and clarifies abstraction of roles, making it suitable for the design phase. An equivalent transformation algorithm (ETA), for transforming an extended role graph into an equivalent role graph, is also proposed. Using the ETA, system administrators can deploy efficiently RBAC by using an extended role graph in the design phase and a standard role graph in the runtime phase.

  8. Geothermal-resource verification for Air Force bases

    SciTech Connect

    Grant, P.R. Jr.

    1981-06-01

    This report summarizes the various types of geothermal energy reviews some legal uncertainties of the resource and then describes a methodology to evaluate geothermal resources for applications to US Air Force bases. Estimates suggest that exploration costs will be $50,000 to $300,000, which, if favorable, would lead to drilling a $500,000 exploration well. Successful identification and development of a geothermal resource could provide all base, fixed system needs with an inexpensive, renewable energy source.

  9. Housing Quality and Access to Material and Learning Resources within the Home Environment in Developing Countries

    ERIC Educational Resources Information Center

    Bradley, Robert H.; Putnick, Diane L.

    2012-01-01

    This study examined home environment conditions (housing quality, material resources, formal and informal learning materials) and their relations with the Human Development Index (HDI) in 28 developing countries. Home environment conditions in these countries varied widely. The quality of housing and availability of material resources at home were…

  10. Housing Quality and Access to Material and Learning Resources within the Home Environment in Developing Countries

    PubMed Central

    Bradley, Robert H.; Putnick, Diane L.

    2011-01-01

    This study examined home environment conditions (housing quality, material resources, formal and informal learning materials) and their relations with the Human Development Index (HDI) in 28 developing countries. Home environment conditions in these countries varied widely. The quality of housing and availability of material resources at home were consistently tied to HDI; the availability of formal and informal learning materials little less so. Gross domestic product (GDP) tended to show a stronger independent relation with housing quality and material resources than life expectancy and education. Formal learning resources were independently related to the GDP and education indices, and informal learning resources were not independently related to any constituent indices of the overall HDI. PMID:22277008

  11. Amplified CWDM-based Next Generation Broadband Access Networks

    NASA Astrophysics Data System (ADS)

    Peiris, Sasanthi Chamarika

    The explosive growth of both fixed and mobile data-centric traffic along with the inevitable trend towards all-IP/Ethernet transport protocols and packet switched networks will ultimately lead to an all-packet-based converged fixed-mobile optical transport network from the core all the way out to the access network. To address the increasing capacity and speed requirements in the access networks, Wavelength-Division Multiplexed (WDM) and/or Coarse WDM (CWDM)-based Passive Optical Networks (PONs) are expected to emerge as the next-generation optical access infrastructures. However, due to several techno-economic hurdles, CWDM-PONs are still considered an expensive solution and have not yet made any significant inroads into the current access area. One of the key technology hurdles is the scalability of the CWDM-based PONs. Passive component optical insertion losses limit the reach of the network or the number of served optical network units (ONUs). In the recent years, optical amplified CWDM approaches have emerged and new designs of optical amplifiers have been proposed and demonstrated. The critical design parameter for these amplifiers is the very wide optical amplification bandwidth (e.g., 340 nm combined for both directions). The objective of this PhD dissertation work is first to engineer ring and tree-ring based PON architectures that can achieve longer unamplified PON reach and/or provide service to a greater number of ONUs and customers. Secondly is to develop new novel optical amplifier schemes to further address the scalability limitation of the CWDM-based PONs. Specifically, this work proposes and develops novel ultra wide-band hybrid Raman-Optical parametric amplifier (HROPA) schemes that operate over nearly the entire specified CWDM band to provide 340 nm bidirectional optical gain bandwidth over the amplified PON's downstream and upstream CWDM wavelength bands (about 170 nm in each direction). The performance of the proposed HROPA schemes is assessed

  12. The ESRC: A Web-based Environmental Satellite Resource Center

    NASA Astrophysics Data System (ADS)

    Abshire, W. E.; Guarente, B.; Dills, P. N.

    2009-12-01

    The COMET® Program has developed an Environmental Satellite Resource Center (known as the ESRC), a searchable, database-driven Website that provides easy access to a wide range of useful information training materials on polar-orbiting and geostationary satellites. Primarily sponsored by the NPOESS Program and NOAA, the ESRC is a tool for users seeking reliable sources of satellite information, training, and data. First published in September 2008, and upgraded in April 2009, the site is freely available at: http://www.meted.ucar.edu/esrc. Additional contributions to the ESRC are sought and made on an ongoing basis. The ESRC was created in response to a broad community request first made in May 2006. The COMET Program was asked to develop the site to consolidate and simplify access to reliable, current, and diverse information, training materials, and data associated with environmental satellites. The ESRC currently includes over 400 significant resources from NRL, CIMSS, CIRA, NASA, VISIT, NESDIS, and EUMETSAT, and improves access to the numerous satellite resources available from COMET’s MetEd Website. The ESRC is designed as a community site where organizations and individuals around the globe can easily submit their resources via online forms by providing a small set of metadata. The ESRC supports languages other than English and multi-lingual character sets have been tested. COMET’s role is threefold: 1) maintain the site, 2) populate it with our own materials, including smaller, focused learning objects derived from our larger training modules, and 3) provide the necessary quality assurance and monitoring to ensure that all resources are appropriate and well described before being made available. Our presentation will demonstrate many of the features and functionality of searching for resources using the ESRC, and will outline the steps for users to make their own submissions. For the site to reach its full potential, submissions representing diverse

  13. Prevention literacy: community-based advocacy for access and ownership of the HIV prevention toolkit

    PubMed Central

    Parker, Richard G; Perez-Brumer, Amaya; Garcia, Jonathan; Gavigan, Kelly; Ramirez, Ana; Milnor, Jack; Terto, Veriano

    2016-01-01

    . However, linkages to community advocacy and mobilization efforts are limited and unsustainable. Success of prevention efforts depends on equity of access, community-based ownership, and multilevel support structures to enable usage and sustainability. Conclusions For existing HIV prevention efforts to be effective in “real-world” settings, with limited resources, reflection on historical lessons and contextual realities (i.e. policies, financial constraints, and biomedical patents) indicated the need to extend principles developed for treatment access and treatment literacy, to support prevention literacy and prevention access as an integral part of the global response to HIV.

  14. Prevention literacy: community-based advocacy for access and ownership of the HIV prevention toolkit

    PubMed Central

    Parker, Richard G; Perez-Brumer, Amaya; Garcia, Jonathan; Gavigan, Kelly; Ramirez, Ana; Milnor, Jack; Terto, Veriano

    2016-01-01

    . However, linkages to community advocacy and mobilization efforts are limited and unsustainable. Success of prevention efforts depends on equity of access, community-based ownership, and multilevel support structures to enable usage and sustainability. Conclusions For existing HIV prevention efforts to be effective in “real-world” settings, with limited resources, reflection on historical lessons and contextual realities (i.e. policies, financial constraints, and biomedical patents) indicated the need to extend principles developed for treatment access and treatment literacy, to support prevention literacy and prevention access as an integral part of the global response to HIV. PMID:27702430

  15. Diffuse optical tomography based on multiple access coding

    NASA Astrophysics Data System (ADS)

    Wang, Xuefeng; Wang, Yuanqing; Su, Jinshan; Xu, Fan

    2016-04-01

    Diffuse optical tomography (DOT) has the advantages of being a non-invasive, non-radiation emitting and low-cost biological tissue imaging method, and many recent studies have employed this technology. By improving the spatial resolution and developing a new method for constantly improving the flexibility of the experimental device, the system can perform data acquisition rapidly and conveniently. We propose a method for rapid data acquisition based on multiple access coding; it can acquire data in parallel, and the system can greatly improve the temporal resolution of the data acquisition step in diffuse optical tomography thereafter. We simulate the encoding and decoding process of the source-detector pair and successfully isolate the source signal from mixed signals. The DOT image reconstruction highlight the effectiveness of the system.

  16. Moving forward on human resources for health: next steps for scaling up toward universal access to HIV/AIDS prevention, treatment, and care.

    PubMed

    Gormley, Wilma; McCaffery, James; Quain, Estelle E

    2011-08-01

    In 2008, the Global Health Workforce Alliance commissioned a technical working group to examine the human resources for health implications of scaling up to reach the Millennium Development Goal 6 of universal access to HIV/AIDS prevention, treatment, care, and support by 2010. The analysis and interventions recommended in the working group report, which was launched at the Second Global Forum on Human Resources for Health in Bangkok, Thailand, in January 2011, are based on two research methods: literature reviews covering the period from 2000 to 2008 and a rapid situational analysis produced by teams working in 5 countries (Côte d'Ivoire, Ethiopia, Mozambique, Thailand, and Zambia). The authors' intent in this article is to assist the Alliance in maintaining the momentum of the forum and the enthusiasm generated by the working group's report to make a difference at the country level by moving from recommendation to action.

  17. TOXMAP: A GIS-Based Gateway to Environmental Health Resources

    PubMed Central

    Hochstein, Colette; Szczur, Marti

    2009-01-01

    The National Library of Medicine (NLM) has an extensive collection of environmental health information, including bibliographic and technical data on hazardous chemical substances, in its TOXNET databases. TOXNET also provides access to the United States Environment Protection Agency (EPA)’s Toxics Release Inventory (TRI) data, which covers release of specific chemicals via air, water, and land, and by underground injection, as reported by industrial facilities around the United States. NLM has developed a Web-based geographic information system (GIS), TOXMAP , which allows users to create dynamic maps that show where TRI chemicals are released and that provides direct links to information about the chemicals in TOXNET. By extracting the associated regional geographic text terms from the displayed map (e.g., rivers, towns, county, state), TOXMAP also provides customized chemical and/or region-specific searches of NLM’s bibliographic biomedical resources. This paper focuses on TOXMAP’s features, data accuracy issues, challenges, user feedback techniques, and future directions. PMID:16893844

  18. Regional Webgis User Access Patterns Based on a Weighted Bipartite Network

    NASA Astrophysics Data System (ADS)

    Li, R.; Shen, Y.; Huang, W.; Wu, H.

    2015-07-01

    With the rapid development of geographic information services, Web Geographic Information Systems (WebGIS) have become an indispensable part of everyday life; correspondingly, map search engines have become extremely popular with users and WebGIS sites receive a massive volume of requests for access. These WebGIS users and the content accessed have regional characteristics; to understand regional patterns, we mined regional WebGIS user access patterns based on a weighted bipartite network. We first established a weighted bipartite network model for regional user access to a WebGIS. Then, based on the massive user WebGIS access logs, we clustered geographic information accessed and thereby identified hot access areas. Finally we quantitatively analyzed the access interests of regional users and the visitation volume characteristics of regional user access to these hot access areas in terms of user access permeability, user usage rate, and user access viscosity. Our research results show that regional user access to WebGIS is spatially aggregated, and the hot access areas that regional users accessed are associated with specific periods of time. Most regional user contact with hot accessed areas is variable and intermittent but for some users, their access to certain areas is continuous as it is associated with ongoing or recurrent objectives. The weighted bipartite network model for regional user WebGIS access provides a valid analysis method for studying user behaviour in WebGIS and the proposed access pattern exhibits access interest of regional user is spatiotemporal aggregated and presents a heavy-tailed distribution. Understanding user access patterns is good for WebGIS providers and supports better operational decision-making, and helpful for developers when optimizing WebGIS system architecture and deployment, so as to improve the user experience and to expand the popularity of WebGIS.

  19. Colorado's hydrothermal resource base: an assessment

    SciTech Connect

    Pearl, R.H.

    1981-01-01

    As part of its effort to more accurately describe the nations geothrmal resource potential, the US Department of Energy/Division of Geothermal Energy contracted with the Colorado Geological survey to appraise the hydrothermal (hot water) geothermal resources of Colorado. Part of this effort required that the amount of energy that could possibly be contained in the various hydrothermal systems in Colorado be estimated. The findings of that assessment are presented. To make these estimates the geothermometer reservoir temperatures estimated by Barrett and Pearl (1978) were used. In addition, the possible reservoir size and extent were estimated and used. This assessment shows that the total energy content of the thermal systems in Colorado could range from 4.872 x 10{sup 15} BTU's to 13.2386 x 10{sup 15} BTU's.

  20. Avatars travel for free: virtual access to evidence-based intervention training and capacity building.

    PubMed

    Villarruel, Antonia M; Aebersold, Michelle; Valladares, Angel F; Yeagley, Emily; Tschannen, Dana

    2014-10-01

    Virtual facilitator trainings have the potential to accelerate the dissemination of evidence-based interventions by increasing accessibility and affordability. We explore the feasibility and acceptability of translating facilitator trainings of ¡Cuídate!, an evidence-based sexual risk intervention for Latino youth, to a multi-user virtual environment (Second Life). We describe the adaptation process and compare participant ratings of face-to-face (n = 35) and Second Life trainings (n = 26). Second Life participants reported that training resources, activities, and demonstrations were good/very good (97%, 88.5%, 94%). While face-to-face participants rated training process outcomes significantly higher than those in Second Life (p < 0.05), these differences may not be practically significant given high ratings overall. Results suggest that virtual trainings are an acceptable and feasible option for training community facilitators on evidence-based interventions. This study contributes to the development of trainings necessary to disseminate and implement evidence-based interventions and is an important effort in providing end-users with access to trainings in order to provide needed community services.

  1. Efficient traffic grooming with dynamic ONU grouping for multiple-OLT-based access network

    NASA Astrophysics Data System (ADS)

    Zhang, Shizong; Gu, Rentao; Ji, Yuefeng; Wang, Hongxiang

    2015-12-01

    Fast bandwidth growth urges large-scale high-density access scenarios, where the multiple Passive Optical Networking (PON) system clustered deployment can be adopted as an appropriate solution to fulfill the huge bandwidth demands, especially for a future 5G mobile network. However, the lack of interaction between different optical line terminals (OLTs) results in part of the bandwidth resources waste. To increase the bandwidth efficiency, as well as reduce bandwidth pressure at the edge of a network, we propose a centralized flexible PON architecture based on Time- and Wavelength-Division Multiplexing PON (TWDM PON). It can provide flexible affiliation for optical network units (ONUs) and different OLTs to support access network traffic localization. Specifically, a dynamic ONU grouping algorithm (DGA) is provided to obtain the minimal OLT outbound traffic. Simulation results show that DGA obtains an average 25.23% traffic gain increment under different OLT numbers within a small ONU number situation, and the traffic gain will increase dramatically with the increment of the ONU number. As the DGA can be deployed easily as an application running above the centralized control plane, the proposed architecture can be helpful to improve the network efficiency for future traffic-intensive access scenarios.

  2. Hepatitis C, a global issue: access to care and new therapeutic and preventive approaches in resource-constrained areas.

    PubMed

    Lemoine, Maud; Thursz, Mark

    2014-02-01

    With the advent of all oral direct-acting antiviral drugs with a broad range of genotypic activity and a low incidence of side effects, we are entering an exciting new era in the therapeutics of hepatitis C virus (HCV). However, it is not yet clear who will benefit from these innovations: Will the advantages be limited to HCV patients in industrialized nations or could the whole community of HCV-infected individuals be given access to treatment? As the majority of people infected with HCV live in resource-limited settings it is important to overcome the barriers that restrict access to treatment in these areas. Drug costs, public and professional education, simplified diagnostics, and political imperative all need to be addressed before the majority of HCV-infected individuals can benefit from the new generation of HCV antivirals.

  3. 100 Colleges Sign Up with Google to Speed Access to Library Resources

    ERIC Educational Resources Information Center

    Young, Jeffrey R.

    2005-01-01

    More than 100 colleges and universities have arranged to give people using the Google Scholar search engine on their campuses more-direct access to library materials. Google Scholar is a free tool that searches scholarly materials on the Web and in academic databases. The new arrangements essentially let Google know which online databases the…

  4. "The Open Library at AU" (Athabasca University): Supporting Open Access and Open Educational Resources

    ERIC Educational Resources Information Center

    Elliott, Colin; Fabbro, Elaine

    2015-01-01

    To address challenges that learners, course creators, librarians and academics involved with OER and MOOCs are facing when looking for scholarly materials, Athabasca University Library has initiated the development of "the Open Library at AU." This open library is a full library website that provides easy access to open and free…

  5. Accessing the Health Care Financing System: A Resource Guide for Local Education Agencies. Bulletin No. 91298.

    ERIC Educational Resources Information Center

    Wisconsin State Dept. of Public Instruction, Madison.

    This guide is intended to assist Wisconsin school districts in accessing the health care financing system as a means of supporting specialized services. Topics covered include: determination of a local education agency's potential for third-party covered services; the need to become a certified provider dependent upon the funding source;…

  6. Disappearing Act: Persistence and Attrition of Uniform Resource Locators (URLs) in an Open Access Medical Journal

    ERIC Educational Resources Information Center

    Nagaraja, Aragudige; Joseph, Shine A.; Polen, Hyla H.; Clauson, Kevin A.

    2011-01-01

    Purpose: The aim of this paper is to assess and catalogue the magnitude of URL attrition in a high-impact, open access (OA) general medical journal. Design/methodology/approach: All "Public Library of Science Medicine (PLoS Medicine)" articles for 2005-2007 were evaluated and the following items were assessed: number of entries per issue; type of…

  7. Efficient resources provisioning based on load forecasting in cloud.

    PubMed

    Hu, Rongdong; Jiang, Jingfei; Liu, Guangming; Wang, Lixin

    2014-01-01

    Cloud providers should ensure QoS while maximizing resources utilization. One optimal strategy is to timely allocate resources in a fine-grained mode according to application's actual resources demand. The necessary precondition of this strategy is obtaining future load information in advance. We propose a multi-step-ahead load forecasting method, KSwSVR, based on statistical learning theory which is suitable for the complex and dynamic characteristics of the cloud computing environment. It integrates an improved support vector regression algorithm and Kalman smoother. Public trace data taken from multitypes of resources were used to verify its prediction accuracy, stability, and adaptability, comparing with AR, BPNN, and standard SVR. Subsequently, based on the predicted results, a simple and efficient strategy is proposed for resource provisioning. CPU allocation experiment indicated it can effectively reduce resources consumption while meeting service level agreements requirements.

  8. Efficient Resources Provisioning Based on Load Forecasting in Cloud

    PubMed Central

    Hu, Rongdong; Jiang, Jingfei; Liu, Guangming; Wang, Lixin

    2014-01-01

    Cloud providers should ensure QoS while maximizing resources utilization. One optimal strategy is to timely allocate resources in a fine-grained mode according to application's actual resources demand. The necessary precondition of this strategy is obtaining future load information in advance. We propose a multi-step-ahead load forecasting method, KSwSVR, based on statistical learning theory which is suitable for the complex and dynamic characteristics of the cloud computing environment. It integrates an improved support vector regression algorithm and Kalman smoother. Public trace data taken from multitypes of resources were used to verify its prediction accuracy, stability, and adaptability, comparing with AR, BPNN, and standard SVR. Subsequently, based on the predicted results, a simple and efficient strategy is proposed for resource provisioning. CPU allocation experiment indicated it can effectively reduce resources consumption while meeting service level agreements requirements. PMID:24701160

  9. Evidence-based practice in health education and promotion: a review and introduction to resources.

    PubMed

    Hill, Elizabeth K; Alpi, Kristine M; Auerbach, Marilyn

    2010-05-01

    This review examines evidence-based practice (EBP) in health education and promotion with a focus on how academically trained health educators develop EBP skills and how health education and promotion practitioners access the literature to inform their activities. Competencies and credentialing in health education related to evidence-based practice are outlined and sources for evidence-based practice literature in health education and promotion are described. An exploratory questionnaire to consider teaching and resources in evidence-based practice was distributed to faculty and librarians from the top 10 ranked health education doctoral programs. Findings highlighted the integral value of EBP instruction to the curriculum. Growth opportunities in evidence-based health education and health promotion for instructors, practitioners, and librarians include promotion and expansion of online evidence-based public health resources to close the evidence-practice gap.

  10. A comprehensive school-based/linked dental program: an essential piece of the California access to care puzzle.

    PubMed

    Fine, Jared I; Isman, Robert E; Grant, Catherine B

    2012-03-01

    California children suffer more from dental disease than any other chronic childhood disease. Disparities in access and oral health are disproportionately represented among children from minority and low-income families. A comprehensive school-based/linked dental program is one essential ingredient in addressing these problems. Described here are the goals, program elements, and challenges of building a seamless dental services system that could reduce barriers care, maximize resources, and employ best practices to improve oral health. PMID:22655421

  11. New Mexico practitioners' access to and satisfaction with online clinical information resources: an interview study using qualitative data analysis software*†

    PubMed Central

    Bradley, Patricia V.; Getrich, Christina M.; Hannigan, Gale G.

    2015-01-01

    Questions: What information resources are available to health care practitioners not affiliated with the University of New Mexico? How satisfied are they with those resources? Setting: The state is rural and medically underserved. Methods: The authors interviewed practitioners, using a nine-item guide. Interview transcripts were coded using QSR NVivo 9 software. Main Results: Fifty-one practitioners were interviewed. Most use online information resources. Many have access to a point-of-care resource within an electronic health records system. They often expressed dissatisfaction with available patient education resources. Conclusion: New Mexico practitioners routinely use electronic information resources but indicate they need better patient information. PMID:25552942

  12. Adolescent health care: improving access by school-based service.

    PubMed

    Gonzales, C; Mulligan, D; Kaufman, A; Davis, S; Hunt, K; Kalishman, N; Wallerstein, N

    1985-10-01

    Participants in this discussion of the potential of school-based health care services for adolescents included family medicine physicians, school health coordinators, a school nurse, and a community worker. It was noted that health care for adolescents tends to be either inaccessible or underutilized, largely because of a lack of sensitivity to adolescent culture and values. An ideal service for adolescents would offer immediate services for crises, strict confidentiality, ready access to prescribed medications, a sliding-scale scheme, and a staff that is tolerant of divergent values and life-styles. School-based pilot adolescent clinics have been established by the University of New Mexico's Department of Family, Community, and Emergency Medicine to test the community-oriented health care model. On-site clinics provide urgent medical care, family planning, pregnancy testing, psychological counseling, alcohol and drug counseling, and classroom health education. Experience with these programs has demonstrated the necessity for an alliance among the health team and the school administration, parents, and students. Financial, ethical, and political factors can serve as constraints to school-based programs. In some cases, school administrators have been resistant to the provision of contraception to students on school grounds and parents have been unwilling to accept the adolescent's right to confidentiality. These problems in part stem from having 2 separate systems, each with its own values, orientation, and responsibilities, housed in 1 facility. In addition, there have been problems generating awareness of the school-based clinic among students. Health education theater groups, peer counseling, and student-run community services have been effective, however, in increasing student participation. It has been helpful to mold clinic services to meet the needs identified by teenagers themselves. There is an interest not only in curative services, but in services focused

  13. A Framework for Context Sensitive Risk-Based Access Control in Medical Information Systems.

    PubMed

    Choi, Donghee; Kim, Dohoon; Park, Seog

    2015-01-01

    Since the access control environment has changed and the threat of insider information leakage has come to the fore, studies on risk-based access control models that decide access permissions dynamically have been conducted vigorously. Medical information systems should protect sensitive data such as medical information from insider threat and enable dynamic access control depending on the context such as life-threatening emergencies. In this paper, we suggest an approach and framework for context sensitive risk-based access control suitable for medical information systems. This approach categorizes context information, estimating and applying risk through context- and treatment-based permission profiling and specifications by expanding the eXtensible Access Control Markup Language (XACML) to apply risk. The proposed framework supports quick responses to medical situations and prevents unnecessary insider data access through dynamic access authorization decisions in accordance with the severity of the context and treatment. PMID:26075013

  14. A Framework for Context Sensitive Risk-Based Access Control in Medical Information Systems

    PubMed Central

    Choi, Donghee; Kim, Dohoon; Park, Seog

    2015-01-01

    Since the access control environment has changed and the threat of insider information leakage has come to the fore, studies on risk-based access control models that decide access permissions dynamically have been conducted vigorously. Medical information systems should protect sensitive data such as medical information from insider threat and enable dynamic access control depending on the context such as life-threatening emergencies. In this paper, we suggest an approach and framework for context sensitive risk-based access control suitable for medical information systems. This approach categorizes context information, estimating and applying risk through context- and treatment-based permission profiling and specifications by expanding the eXtensible Access Control Markup Language (XACML) to apply risk. The proposed framework supports quick responses to medical situations and prevents unnecessary insider data access through dynamic access authorization decisions in accordance with the severity of the context and treatment. PMID:26075013

  15. SuperB R&D computing program: HTTP direct access to distributed resources

    NASA Astrophysics Data System (ADS)

    Fella, A.; Bianchi, F.; Ciaschini, V.; Corvo, M.; Delprete, D.; Diacono, D.; Di Simone, A.; Franchini, P.; Donvito, G.; Giacomini, F.; Gianoli, A.; Longo, S.; Luitz, S.; Luppi, E.; Manzali, M.; Pardi, S.; Perez, A.; Rama, M.; Russo, G.; Santeramo, B.; Stroili, R.; Tomassetti, L.

    2012-12-01

    The SuperB asymmetric energy e+e- collider and detector to be built at the newly founded Nicola Cabibbo Lab will provide a uniquely sensitive probe of New Physics in the flavor sector of the Standard Model. Studying minute effects in the heavy quark and heavy lepton sectors requires a data sample of 75 ab-1 and a luminosity target of 1036cm-2s-1. The increasing network performance also in the Wide Area Network environment and the capability to read data remotely with good efficiency are providing new possibilities and opening new scenarios in the data access field. Subjects like data access and data availability in a distributed environment are key points in the definition of the computing model for an HEP experiment like SuperB. R&D efforts in such a field have been brought on during the last year in order to release the Computing Technical Design Report within 2013. WAN direct access to data has been identified as one of the more interesting viable option; robust and reliable protocols as HTTP/WebDAV and xrootd are the subjects of a specific R&D line in a mid-term scenario. In this work we present the R&D results obtained in the study of new data access technologies for typical HEP use cases, focusing on specific protocols such as HTTP and WebDAV in Wide Area Network scenarios. Reports on efficiency, performance and reliability tests performed in a data analysis context have been described. Future R&D plan includes HTTP and xrootd protocols comparison tests, in terms of performance, efficiency, security and features available.

  16. Using Electronic Resources to Support Problem-Based Learning

    ERIC Educational Resources Information Center

    Chang, Chen-Chi; Jong, Ay; Huang, Fu-Chang

    2012-01-01

    Students acquire skills in problem solving and critical thinking through the process as well as team work on problem-based learning courses. Many courses have started to involve the online learning environment and integrate these courses with electronic resources. Teachers use electronic resources in their classes. To overcome the problem of the…

  17. The Role of School Libraries in Resource-Based Learning.

    ERIC Educational Resources Information Center

    McNicol, Sarah; Ghelani, Tilusha; Nankivell, Clare

    2002-01-01

    Discussion of the role of school libraries focuses on a study in England that monitored secondary school students completing a resource-based learning project. Compared students' use of the school library at four different schools with their use of other information resources, including public libraries and the Internet. (Author/LRW)

  18. Encouraging Use of Community-Based Resources by Bioscience Students

    ERIC Educational Resources Information Center

    Goulder, Ray; Scott, Graham W.

    2010-01-01

    This communication reports how bioscience students are encouraged to benefit from city and regional community-based resources through use of a guidebook and student-managed learning. Positive outcomes of the module are that bioscience students take their learning experience beyond the classroom, they engage with wider community resources, and they…

  19. Natural Partners: Resource-Based and Integrative Learning.

    ERIC Educational Resources Information Center

    Porter, John R.

    1992-01-01

    With resource-based learning projects, college students at the Philadelphia College of Pharmacy and Science develop a better sense of the information resources available, the nature of scientific literature, and the characteristics of scientific writing. Faculty motivations, benefits, and disappointments with this approach are addressed.…

  20. School Ground as Environmental Learning Resources: Teachers' and Pupils' Perspectives on Its Potentials, Uses and Accessibility

    ERIC Educational Resources Information Center

    Atmodiwirjo, Paramita

    2013-01-01

    This paper addresses the role of school ground as outdoor learning resources for environmental education. The opportunities to use school ground are particularly prominent in tropical climate, where the weather permits plenty of outdoor learning activities. A study in primary schools in Jakarta explored the relationship between the spatial aspects…

  1. Resource Adequacy, Equity, and the Right to Learn: Access to High-Quality Teachers in Kentucky

    ERIC Educational Resources Information Center

    Knoeppel, Robert C.

    2007-01-01

    Using school-level descriptive data, this study examined the distribution of teachers in the Commonwealth of Kentucky in an attempt to build on previous research concerning the equity of the finance system in the state. Rather than focusing on revenue from the perspective of horizontal equity, this study used human resource data to examine the…

  2. ILLINET Online: Enhancing and Expanding Access to Library Resources in Illinois.

    ERIC Educational Resources Information Center

    Sloan, Bernard G.; Stewart, J. David

    1988-01-01

    Discusses the history, operation, funding, and future of ILLINET Online, an automated library system in Illinois which has two components: the Library Computer System, a statewide resource sharing network; and the Full Bibliographic Record system, a shared online catalog for participating libraries. (MES)

  3. Trace ResourceBook: Assistive Technologies for Communication, Control & Computer Access. 1996-97 Edition.

    ERIC Educational Resources Information Center

    Borden, Peter A., Ed.; And Others

    This resource book lists approximately 1,500 products designed specifically for the needs of people with disabilities. Typically, each product is pictured; basic information is provided including manufacturer name, product cost, size, and weight; and the product is briefly described. The book's four sections each describe products designed for…

  4. POPcorn: An online resource providing access to distributed and diverse maize project data

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Maize researchers cannot easily leverage all available genetic and genomic data because the online locations of all resources are not easy to find and individual project websites must be searched independently. In addition, project websites degrade over time and sometimes disappear entirely. We cr...

  5. State Policy Recommendations for Providing Educators Access to College- and Career-Ready Open Educational Resources

    ERIC Educational Resources Information Center

    Voss, Hans

    2015-01-01

    As states and districts transition to college- and career-ready standards and aligned assessments, the need for high-quality instructional materials is clear. Open Educational Resources (OER) offer a low-cost solution with high potential to assist teachers nationwide in helping students meet the demands of higher standards. More and more…

  6. OrthoEvidence™: A Clinical Resource for Evidence-Based Orthopedics

    PubMed Central

    Sprague, Sheila; Smith, Chris; Bhandari, Mohit

    2015-01-01

    The prevalence of musculoskeletal issues in clinical practice, and the limited focus placed upon musculoskeletal conditions by current electronic summary resources, highlights the need for a resource that provides access to simple and concise summaries of top-quality orthopedic literature for orthopedic surgeons and allied healthcare professionals. OrthoEvidence™ is an online clinical resource that addresses the paucity of adequate evidence-based summary tools in the field of orthopedic surgery. OrthoEvidence™ uses a rigorous, transparent, and unique process to review, evaluate, and summarize high quality research studies and their implications for orthopedic clinical practice. Randomized controlled trials and meta-analyses are identified and reviewed by an expert medical writing team, who prepare Advanced Clinical Evidence (ACETM) reports: one or two detailed pages including critical appraisals and synopses of key research. These timely and targeted reports provide a clear understanding about the quality of evidence associated with each summarized study, and can be organized by users to identify trending information. OrthoEvidence™ allows members to use their time efficiently and to stay current by having access to a breadth of timely, high-quality research output. OrthoEvidence™ is easily accessible through the internet and is available at the point-of-care, which allows treating orthopedic surgeons and allied health professionals to easily practice the principles of evidence-based medicine within their clinical practices.. PMID:26330990

  7. Food production: technology and the resource base.

    PubMed

    Wittwer, S H

    1975-05-01

    Despite a growing population and increasing demands of that population for improved diets, it appears that the world is not close to universal famine (3, 53). There is enough food now produced to feed the world's hungry (54). That people are malnourished or starving is a question of distribution, delivery, and economics, not agricultural limits. The problem is putting the food where the people are and providing an income so that they can buy it. As to the future, there are clouds on the far horizon. Only increased scientific and technological innovation, coupled with a change in human behavior and in national policy with regard to increased investments in agricultural research, can avert a growing food and population crisis. Only scientists develop new technology. Only farmers produce food. Motivation and incentives are important both for scientific discovery and food production. Agricultural research is also a process. There is no finite beginning or end. It is a continuing search to unravel mysteries. We must force the pace of agricultural development, but technology must be tailored to local conditions. Thiscan be done by scientists who also know how to farm. Individual dedication and sustained government commitments are important. Rapidity of information transfer and of acceptance of technology is also crucial (55). There is a wide gap between progress in research and the point of application for human benefit (Table 5). What accounts for the vast time differences in rapidity of technology acceptance? The current avalanche of new knowledge coupled with problems of food, feed, and fiber supplies, and issues of availability, preservation, protection, renewability, and costs of resources should bring to the front the urgency of rapid information transfer and reassessment of information systems for agricultural and other renewable resources.

  8. A Rule-Based Expert System as an Integrated Resource in an Outpatient Clinic Information System

    PubMed Central

    Wilton, Richard

    1990-01-01

    A rule-based expert system can be integrated in a useful way into a microcomputer-based clinical information system by using symmetric data-communication methods and intuitive user-interface design. To users of the computer system, the expert system appears as one of several distributed information resources, among which are database management systems and a gateway to a mainframe computing system. Transparent access to the expert system is based on the use of both commercial and public-domain data-communication standards.

  9. Sourcebook: gaining access to US government information on the environment and natural resources

    SciTech Connect

    O'Hara, F.M. Jr.; O'Hara, L.

    1984-11-01

    This publication is designed to acquaint the reader with the broad range of services and publications that are offered by the US government and that provide information about the environment and natural resources. These sources of information include referral services, public-information offices, computerized data banks, information-analysis centers, and publication-distribution systems as well as published sources like bibliographies, abstract and index journals, reports, handbooks, and atlases. The subject matter covered by this sourcebook includes air pollution, meteorology, water resources and quality, fisheries, aquaculture, marine science, solid and hazardous waste treatment, land use, soil science, population and demography, anthropology, architecture, geography, urban studies, health, biology, agriculture, forestry, habitat, wildlife, geology, minerals, and related sciences and technologies.

  10. Engaging the optics community in the development of informative, accessible resources focusing on careers

    NASA Astrophysics Data System (ADS)

    Poulin-Girard, Anne-Sophie; Gingras, F.; Zambon, V.; Thériault, G.

    2014-09-01

    Young people often have biased and pre-conceived ideas about scientists and engineers that can dissuade them from considering a career in optics. This situation is compounded by the fact that existing resources on careers in optics are not suitable since they mostly focus on more general occupations such as a physicist and an electrical engineer. In addition, the linguistic register is not adapted for students, and many of these resources are only available to guidance counselors. To create appropriate resources that will inform high school students on different career opportunities in optics and photonics, we sought the collaboration of our local optics community. We selected seven specific occupations: entrepreneur in optics, university professor, teacher, technician, research and development engineer, sales representative and graduate student in optics. For each career, a list of daily tasks was created from the existing documentation by a guidance counselor and was validated by an expert working in the field of optics. Following a process of validation, we built surveys in which professionals were asked to select the tasks that best represented their occupation. The surveys were also used to gather other information such as level of education and advice for young people wishing to pursue careers in optics. Over 175 professionals answered the surveys. With these results, we created a leaflet and career cards that are available online and depict the activities of people working in optics and photonics. We hope that these resources will help counter the negative bias against scientific careers and inform teenagers and young adults on making career choices that are better suited to their preferences and aspirations.

  11. Caribbean Equal Access Program: HIV/AIDS Information Resources from the National Library of Medicine

    SciTech Connect

    Nancy Dancy, NLM, and Wilma Templin-Branner, ORISE

    2009-01-01

    As the treatment and management of HIV/AIDS continues to evolve with new scientific breakthroughs, treatment discoveries, and management challenges, it is difficult for people living with HIV/AIDS and those who care for them to keep up with the latest information on HIV/AIDS prevention, treatment, and research. The National Library of Medicine, of the National Institutes of Health, has a wealth of health information resources freely available on the Internet to address these needs.

  12. Access, Use, and Preferences for Technology-Based Perinatal and Breastfeeding Support Among Childbearing Women.

    PubMed

    Demirci, Jill Radtke; Cohen, Susan M; Parker, Maris; Holmes, Ashleigh; Bogen, Debra L

    2016-01-01

    We surveyed 146 postpartum women who birthed at 34-37 6/7 weeks of gestation and intended to breastfeed about their use of and preferences regarding technology to obtain perinatal and breastfeeding support. Most participants owned smartphones and used technology during pregnancy to track pregnancy data, follow fetal development, address pregnancy concerns, and obtain breastfeeding information. Internet, e-mail, apps, and multiplatform resources were the most popular technologies used and preferred. Demographic differences existed in mobile technology access and preferences for different technologies. In terms of technology-based breastfeeding support, women wanted encouragement, anticipatory guidance, and information about milk production. A nuanced understanding of the technology childbearing women use and desire has the potential to impact clinical care and inform perinatal support interventions. PMID:26848248

  13. Accessing community-based and long-term care services: challenges facing persons with frontotemporal dementia and their families.

    PubMed

    Morhardt, Darby

    2011-11-01

    There are several barriers to accessing services for persons with frontotemporal dementia (FTD), and few studies have examined service needs and satisfaction with services for family caregivers of persons with FTD. Persons with FTD and their families have reported consistent difficulties in their attempts to access care and support. These are: (1) difficulty obtaining a diagnosis; (2) financial concerns due to loss of employment, job-related income; (3) problems accessing social security disability insurance; and (4) lack of adequate community-based and long-term care services and resources. Successful care practices such as use of an interdisciplinary team and helpful care models such as person-centered care and the antecedent-behavior-consequence method are described. Further investigation and research are needed to understand best care strategies for persons with FTD. PMID:21826393

  14. Improving access to knowledge-based health sciences information: early results from a statewide collaborative effort.

    PubMed

    McCray, J C; Maloney, K

    1997-04-01

    Access to biomedical literature has been shown to reduce the patient's length of stay and thus reduce the cost of the hospital visit. Unfortunately, access to the most current information, at the time and place of need, requires a substantial commitment of resources in the form of staff expertise, computer hardware and software, and user training. The cost of these resources may be prohibitively high for all but the largest institutions. The Arizona Health Information Network (AZHIN) brings together librarians, information systems specialists, and health care professionals from hospitals throughout the state in an effort to share resources and expertise. By reducing the cost of access, AZHIN has increased the availability of health-related information across the state. Progress in AZHIN's first two years is described. PMID:9160149

  15. Accessing commercial cloud resources within the European Helix Nebula cloud marketplace

    NASA Astrophysics Data System (ADS)

    Cordeiro, C.; De Salvo, A.; Di Girolamo, A.; Field, L.; Giordano, D.; Jones, R.; Villazon, L.

    2015-12-01

    Helix Nebula - the Science Cloud Initiative - is a public-private partnership between Europe's leading scientific research organisations and European IT cloud providers. CERN contributed to this initiative by providing a flagship use case: the workloads from the ATLAS experiment. Aiming to gain experience in managing and monitoring large-scale deployments, as well as in benchmarking the cloud resources, a sizable Monte Carlo production was performed using the Helix Nebula platform. This contribution describes the Helix Nebula initiative and summarizes the experience and the lessons learned from deploying ATLAS experiment application within large cloud setups involving several commercial providers.

  16. A Qualitative Exploration of Community-Based Organization Programs, Resources, and Training to Promote Adolescent Sexual Health

    ERIC Educational Resources Information Center

    McCarthy, Molly A.; Fisher, Christopher M.; Zhou, Junmin; Zhu, He; Pelster, Aja Kneip; Schober, Daniel J.; Baldwin, Kathleen; Fortenberry, J. Dennis; Goldsworthy, Richard

    2015-01-01

    Youth development professionals (YDPs) working at community-based organizations (CBOs) can promote adolescent sexual health through programs. This study explored the programs and resources that youth access at CBOs and training YDPs receive. Twenty-one semi-structured interviews were conducted with YDPs. Qualitative content analyses were conducted…

  17. The Zebrafish Neurophenome Database (ZND): a dynamic open-access resource for zebrafish neurophenotypic data.

    PubMed

    Kyzar, Evan; Zapolsky, Ivan; Green, Jeremy; Gaikwad, Siddharth; Pham, Mimi; Collins, Christopher; Roth, Andrew; Stewart, Adam Michael; St-Pierre, Paul; Hirons, Budd; Kalueff, Allan V

    2012-03-01

    Zebrafish (Danio rerio) are widely used in neuroscience research, where their utility as a model organism is rapidly expanding. Low cost, ease of experimental manipulations, and sufficient behavioral complexity make zebrafish a valuable tool for high-throughput studies in biomedicine. To complement the available repositories for zebrafish genetic information, there is a growing need for the collection of zebrafish neurobehavioral and neurological phenotypes. For this, we are establishing the Zebrafish Neurophenome Database (ZND; www.tulane.edu/∼znpindex/search ) as a new dynamic online open-access data repository for behavioral and related physiological data. ZND, currently focusing on adult zebrafish, combines zebrafish neurophenotypic data with a simple, easily searchable user interface, which allow scientists to view and compare results obtained by other laboratories using various treatments in different testing paradigms. As a developing community effort, ZND is expected to foster innovative research using zebrafish by federating the growing body of zebrafish neurophenotypic data.

  18. Cardea: Providing Support for Dynamic Resource Access in a Distributed Computing Environment

    NASA Technical Reports Server (NTRS)

    Lepro, Rebekah

    2003-01-01

    The environment framing the modem authorization process span domains of administration, relies on many different authentication sources, and manages complex attributes as part of the authorization process. Cardea facilitates dynamic access control within this environment as a central function of an inter-operable authorization framework. The system departs from the traditional authorization model by separating the authentication and authorization processes, distributing the responsibility for authorization data and allowing collaborating domains to retain control over their implementation mechanisms. Critical features of the system architecture and its handling of the authorization process differentiate the system from existing authorization components by addressing common needs not adequately addressed by existing systems. Continuing system research seeks to enhance the implementation of the current authorization model employed in Cardea, increase the robustness of current features, further the framework for establishing trust and promote interoperability with existing security mechanisms.

  19. A Menu-Driven Interface to Unix-Based Resources

    PubMed Central

    Evans, Elizabeth A.

    1989-01-01

    Unix has often been overlooked in the past as a viable operating system for anyone other than computer scientists. Its terseness, non-mnemonic nature of the commands, and the lack of user-friendly software to run under it are but a few of the user-related reasons which have been cited. It is, nevertheless, the operating system of choice in many cases. This paper describes a menu-driven interface to Unix which provides user-friendlier access to the software resources available on the computers running under Unix.

  20. Safety management of Ethernet broadband access based on VLAN aggregation

    NASA Astrophysics Data System (ADS)

    Wang, Li

    2004-04-01

    With broadband access network development, the Ethernet technology is more and more applied access network now. It is different from the private network -LAN. The differences lie in four points: customer management, safety management, service management and count-fee management. This paper mainly discusses the safety management related questions. Safety management means that the access network must secure the customer data safety, isolate the broad message which brings the customer private information, such as ARP, DHCP, and protect key equipment from attack. Virtue LAN (VLAN) technology can restrict network broadcast flow. We can config each customer port with a VLAN, so each customer is isolated with others. The IP address bound with VLAN ID can be routed rightly. But this technology brings another question: IP address shortage. VLAN aggregation technology can solve this problem well. Such a mechanism provides several advantages over traditional IPv4 addressing architectures employed in large switched LANs today. With VLAN aggregation technology, we introduce the notion of sub-VLANs and super-VLANs, a much more optimal approach to IP addressing can be realized. This paper will expatiate the VLAN aggregation model and its implementation in Ethernet access network. It is obvious that the customers in different sub-VLANs can not communication to each other because the ARP packet is isolated. Proxy ARP can enable the communication among them. This paper will also expatiate the proxy ARP model and its implementation in Ethernet access network.

  1. How accessible are coral reefs to people? A global assessment based on travel time.

    PubMed

    Maire, Eva; Cinner, Joshua; Velez, Laure; Huchery, Cindy; Mora, Camilo; Dagata, Stephanie; Vigliola, Laurent; Wantiez, Laurent; Kulbicki, Michel; Mouillot, David

    2016-04-01

    The depletion of natural resources has become a major issue in many parts of the world, with the most accessible resources being most at risk. In the terrestrial realm, resource depletion has classically been related to accessibility through road networks. In contrast, in the marine realm, the impact on living resources is often framed into the Malthusian theory of human density around ecosystems. Here, we develop a new framework to estimate the accessibility of global coral reefs using potential travel time from the nearest human settlement or market. We show that 58% of coral reefs are located < 30 min from the nearest human settlement. We use a case study from New Caledonia to demonstrate that travel time from the market is a strong predictor of fish biomass on coral reefs. We also highlight a relative deficit of protection on coral reef areas near people, with disproportional protection on reefs far from people. This suggests that conservation efforts are targeting low-conflict reefs or places that may already be receiving de facto protection due to their isolation. Our global assessment of accessibility in the marine realm is a critical step to better understand the interplay between humans and resources. PMID:26879898

  2. How accessible are coral reefs to people? A global assessment based on travel time.

    PubMed

    Maire, Eva; Cinner, Joshua; Velez, Laure; Huchery, Cindy; Mora, Camilo; Dagata, Stephanie; Vigliola, Laurent; Wantiez, Laurent; Kulbicki, Michel; Mouillot, David

    2016-04-01

    The depletion of natural resources has become a major issue in many parts of the world, with the most accessible resources being most at risk. In the terrestrial realm, resource depletion has classically been related to accessibility through road networks. In contrast, in the marine realm, the impact on living resources is often framed into the Malthusian theory of human density around ecosystems. Here, we develop a new framework to estimate the accessibility of global coral reefs using potential travel time from the nearest human settlement or market. We show that 58% of coral reefs are located < 30 min from the nearest human settlement. We use a case study from New Caledonia to demonstrate that travel time from the market is a strong predictor of fish biomass on coral reefs. We also highlight a relative deficit of protection on coral reef areas near people, with disproportional protection on reefs far from people. This suggests that conservation efforts are targeting low-conflict reefs or places that may already be receiving de facto protection due to their isolation. Our global assessment of accessibility in the marine realm is a critical step to better understand the interplay between humans and resources.

  3. The "internet +" quality resource management system based on process

    NASA Astrophysics Data System (ADS)

    Zhang, Hui; Tong, Weichao; Yin, Hong; Liu, Zhilong; Shen, Jun; Zhong, Ying

    2016-01-01

    Based on the relative theories of quality resource management system and "Internet +", this paper combines the "Internet +"and quality resource management system. By using quality management process approach and taking computers and databases technology as tools, the system collects, archives and manages the quality data in process network, to supervise and control the process of the quality resource management system more effectively. Based on the quality control process in production site and the characteristics of the process, the paper constructs the frame of the resource management system. By taking the STM32F103 series microcontroller as core controller, the system achieves a network system and collects data automatically. The results show that the system can be positioning problem accurately timely and improves the productivity and quality of products.

  4. Cognitive radio resource allocation based on coupled chaotic genetic algorithm

    NASA Astrophysics Data System (ADS)

    Zu, Yun-Xiao; Zhou, Jie; Zeng, Chang-Chang

    2010-11-01

    A coupled chaotic genetic algorithm for cognitive radio resource allocation which is based on genetic algorithm and coupled Logistic map is proposed. A fitness function for cognitive radio resource allocation is provided. Simulations are conducted for cognitive radio resource allocation by using the coupled chaotic genetic algorithm, simple genetic algorithm and dynamic allocation algorithm respectively. The simulation results show that, compared with simple genetic and dynamic allocation algorithm, coupled chaotic genetic algorithm reduces the total transmission power and bit error rate in cognitive radio system, and has faster convergence speed.

  5. MIAPS: a web-based system for remotely accessing and presenting medical images.

    PubMed

    Shen, Hualei; Ma, Dianfu; Zhao, Yongwang; Sun, Hailong; Sun, Sujun; Ye, Rongwei; Huang, Lei; Lang, Bo; Sun, Yan

    2014-01-01

    MIAPS (medical image access and presentation system) is a web-based system designed for remotely accessing and presenting DICOM image. MIAPS is accessed with web browser through the Internet. MIAPS provides four features: DICOM image retrieval, maintenance, presentation and output. MIAPS does not intent to replace sophisticated commercial and open source packages, but it provides a web-based solution for teleradiology and medical image sharing. The system has been evaluated by 39 hospitals in China for 10 months.

  6. Access to Resources Shapes Maternal Decision Making: Evidence from a Factorial Vignette Experiment

    PubMed Central

    Kushnick, Geoff

    2013-01-01

    The central assumption of behavioral ecology is that natural selection has shaped individuals with the capacity to make decisions that balance the fitness costs and benefits of behavior. A number of factors shape the fitness costs and benefits of maternal care, but we lack a clear understanding how they, taken together, play a role in the decision-making process. In animal studies, the use of experimental methods has allowed for the tight control of these factors. Standard experimentation is inappropriate in human behavioral ecology, but vignette experiments may solve the problem. I used a confounded factorial vignette experiment to gather 640 third-party judgments about the maternal care decisions of hypothetical women and their children from 40 female karo Batak respondents in rural Indonesia. This allowed me to test hypotheses derived from parental investment theory about the relative importance of five binary factors in shaping maternal care decisions with regard to two distinct scenarios. As predicted, access to resources—measured as the ability of a woman to provide food for her children—led to increased care. A handful of other factors conformed to prediction, but they were inconsistent across scenarios. The results suggest that mothers may use simple heuristics, rather than a full accounting for costs and benefits, to make decisions about maternal care. Vignettes have become a standard tool for studying decision making, but have made only modest inroads to evolutionarily informed studies of human behavior. PMID:24069427

  7. NCBO Resource Index: Ontology-Based Search and Mining of Biomedical Resources.

    PubMed

    Jonquet, Clement; Lependu, Paea; Falconer, Sean; Coulet, Adrien; Noy, Natalya F; Musen, Mark A; Shah, Nigam H

    2011-09-01

    The volume of publicly available data in biomedicine is constantly increasing. However, these data are stored in different formats and on different platforms. Integrating these data will enable us to facilitate the pace of medical discoveries by providing scientists with a unified view of this diverse information. Under the auspices of the National Center for Biomedical Ontology (NCBO), we have developed the Resource Index-a growing, large-scale ontology-based index of more than twenty heterogeneous biomedical resources. The resources come from a variety of repositories maintained by organizations from around the world. We use a set of over 200 publicly available ontologies contributed by researchers in various domains to annotate the elements in these resources. We use the semantics that the ontologies encode, such as different properties of classes, the class hierarchies, and the mappings between ontologies, in order to improve the search experience for the Resource Index user. Our user interface enables scientists to search the multiple resources quickly and efficiently using domain terms, without even being aware that there is semantics "under the hood."

  8. Distributed policy based access to networked heterogeneous ISR data sources

    NASA Astrophysics Data System (ADS)

    Bent, G.; Vyvyan, D.; Wood, David; Zerfos, Petros; Calo, Seraphin

    2010-04-01

    Within a coalition environment, ad hoc Communities of Interest (CoI's) come together, perhaps for only a short time, with different sensors, sensor platforms, data fusion elements, and networks to conduct a task (or set of tasks) with different coalition members taking different roles. In such a coalition, each organization will have its own inherent restrictions on how it will interact with the others. These are usually stated as a set of policies, including security and privacy policies. The capability that we want to enable for a coalition operation is to provide access to information from any coalition partner in conformance with the policies of all. One of the challenges in supporting such ad-hoc coalition operations is that of providing efficient access to distributed sources of data, where the applications requiring the data do not have knowledge of the location of the data within the network. To address this challenge the International Technology Alliance (ITA) program has been developing the concept of a Dynamic Distributed Federated Database (DDFD), also know as a Gaian Database. This type of database provides a means for accessing data across a network of distributed heterogeneous data sources where access to the information is controlled by a mixture of local and global policies. We describe how a network of disparate ISR elements can be expressed as a DDFD and how this approach enables sensor and other information sources to be discovered autonomously or semi-autonomously and/or combined, fused formally defined local and global policies.

  9. Android-based access to holistic emergency care record.

    PubMed

    Koufi, Vassiliki; Malamateniou, Flora; Prentza, Andriana; Vassilacopoulos, George

    2013-01-01

    This paper is concerned with the development of an Emergency Medical Services (EMS) system which interfaces with a Holistic Emergency Care Record (HECR) that aims at managing emergency care holistically by supporting EMS processes and is accessible by Android-enabled mobile devices. PMID:23823406

  10. Browser-Based Accessibility Evaluation Tools for Beginners

    ERIC Educational Resources Information Center

    McHale, Nina

    2011-01-01

    There are hundreds of Web accessibility software options out in the world that serve many different functions. Not surprisingly, many of them are designed for users with a wide range of abilities, with the intent of making the use of computers and the Internet easier for both work and entertainment. There are, however, numerous products available…

  11. [Occupational choice and biography - biographical diagnostics as an approach to accessing the individual's perceptual horizons and resources in the context of vocational rehabilitation].

    PubMed

    Dern, W; Hanses, A

    2001-10-01

    This contribution is focused on the core tenet that the process of choice of occupation must encompass in its everyday routines the disabled person's biography, his or her life experiences, biographical self-appraisals as well as action orientations. Unless this is achieved, its professional strategies and interventions will remain prone to missing, or even counteracting, the biographical resources as well as thinking and perceptions of its clients. Biographical Diagnostics is presented here as a method seeking to access the individual in the process of choice of occupation in an understanding manner. It constitutes a new concept in terms of a biography-based, hermeneutic case approach conceived for implementation in the everyday routines of vocational rehabilitation. Two case examples serve to explicate the method of Biographical Diagnostics and set out the relevancy of a biographical orientation in the process of occupational choice. PMID:11579376

  12. [Occupational choice and biography - biographical diagnostics as an approach to accessing the individual's perceptual horizons and resources in the context of vocational rehabilitation].

    PubMed

    Dern, W; Hanses, A

    2001-10-01

    This contribution is focused on the core tenet that the process of choice of occupation must encompass in its everyday routines the disabled person's biography, his or her life experiences, biographical self-appraisals as well as action orientations. Unless this is achieved, its professional strategies and interventions will remain prone to missing, or even counteracting, the biographical resources as well as thinking and perceptions of its clients. Biographical Diagnostics is presented here as a method seeking to access the individual in the process of choice of occupation in an understanding manner. It constitutes a new concept in terms of a biography-based, hermeneutic case approach conceived for implementation in the everyday routines of vocational rehabilitation. Two case examples serve to explicate the method of Biographical Diagnostics and set out the relevancy of a biographical orientation in the process of occupational choice.

  13. Access to modern contraception.

    PubMed

    Welsh, Michael J; Stanback, John; Shelton, James

    2006-06-01

    Access to modern contraception has become a recognized human right, improving the health and well-being of women, families and societies worldwide. However, contraceptive access remains uneven. Irregular contraceptive supply, limited numbers of service delivery points and specific geographic, economic, informational, psychosocial and administrative barriers (including medical barriers) undermine access in many settings. Widening the range of providers enabled to offer contraception can improve contraceptive access, particularly where resources are most scarce. International efforts to remove medical barriers include the World Health Organization's Medical Eligibility Criteria. Based on the best available evidence, these criteria provide guidance for weighing the risks and benefits of contraceptive choice among women with specific clinical conditions. Clinical job aids can also improve access. More research is needed to further elucidate the pathways for expanding contraceptive access. Further progress in removing medical barriers will depend on systems for improving provider education and promoting evidence-based contraceptive service delivery. PMID:16443395

  14. Accessing integrated genomic data using GenoBase: A tutorial, Part 1

    SciTech Connect

    Overbeek, R.; Price, M.

    1993-01-01

    GenoBase integrates genomic information from many existing databases, offering convenient access to the curated data. This document is the first part of a two-part tutorial on how to use GenoBase for accessing integrated genomic data.

  15. Heterogeneous access and processing of EO-Data on a Cloud based Infrastructure delivering operational Products

    NASA Astrophysics Data System (ADS)

    Niggemann, F.; Appel, F.; Bach, H.; de la Mar, J.; Schirpke, B.; Dutting, K.; Rucker, G.; Leimbach, D.

    2015-04-01

    To address the challenges of effective data handling faced by Small and Medium Sized Enterprises (SMEs) a cloud-based infrastructure for accessing and processing of Earth Observation(EO)-data has been developed within the project APPS4GMES(www.apps4gmes.de). To gain homogenous multi mission data access an Input Data Portal (IDP) been implemented on this infrastructure. The IDP consists of an Open Geospatial Consortium (OGC) conformant catalogue, a consolidation module for format conversion and an OGC-conformant ordering framework. Metadata of various EO-sources and with different standards is harvested and transferred to an OGC conformant Earth Observation Product standard and inserted into the catalogue by a Metadata Harvester. The IDP can be accessed for search and ordering of the harvested datasets by the services implemented on the cloud infrastructure. Different land-surface services have been realised by the project partners, using the implemented IDP and cloud infrastructure. Results of these are customer ready products, as well as pre-products (e.g. atmospheric corrected EO data), serving as a basis for other services. Within the IDP an automated access to ESA's Sentinel-1 Scientific Data Hub has been implemented. Searching and downloading of the SAR data can be performed in an automated way. With the implementation of the Sentinel-1 Toolbox and own software, for processing of the datasets for further use, for example for Vista's snow monitoring, delivering input for the flood forecast services, can also be performed in an automated way. For performance tests of the cloud environment a sophisticated model based atmospheric correction and pre-classification service has been implemented. Tests conducted an automated synchronised processing of one entire Landsat 8 (LS-8) coverage for Germany and performance comparisons to standard desktop systems. Results of these tests, showing a performance improvement by the factor of six, proved the high flexibility and

  16. Rate Adaptive Based Resource Allocation with Proportional Fairness Constraints in OFDMA Systems

    PubMed Central

    Yin, Zhendong; Zhuang, Shufeng; Wu, Zhilu; Ma, Bo

    2015-01-01

    Orthogonal frequency division multiple access (OFDMA), which is widely used in the wireless sensor networks, allows different users to obtain different subcarriers according to their subchannel gains. Therefore, how to assign subcarriers and power to different users to achieve a high system sum rate is an important research area in OFDMA systems. In this paper, the focus of study is on the rate adaptive (RA) based resource allocation with proportional fairness constraints. Since the resource allocation is a NP-hard and non-convex optimization problem, a new efficient resource allocation algorithm ACO-SPA is proposed, which combines ant colony optimization (ACO) and suboptimal power allocation (SPA). To reduce the computational complexity, the optimization problem of resource allocation in OFDMA systems is separated into two steps. For the first one, the ant colony optimization algorithm is performed to solve the subcarrier allocation. Then, the suboptimal power allocation algorithm is developed with strict proportional fairness, and the algorithm is based on the principle that the sums of power and the reciprocal of channel-to-noise ratio for each user in different subchannels are equal. To support it, plenty of simulation results are presented. In contrast with root-finding and linear methods, the proposed method provides better performance in solving the proportional resource allocation problem in OFDMA systems. PMID:26426016

  17. Contribution of Neighborhood Income and Access to Quality Physical Activity Resources to Physical Activity in Ethnic Minority Women Over Time

    PubMed Central

    Lee, Rebecca E.; Mama, Scherezade K.; Adamus-Leach, Heather J.; Soltero, Erica G.

    2015-01-01

    Purpose To create and test an index to indicate both availability and quality of physical activity (PA) resources (PARs), to examine associations between access to quality PARs and changes in PA, and to determine whether this association differed in lower- and higher-income neighborhoods. Design Longitudinal, 6-month intervention. Setting. Houston and Austin, Texas. Subjects African-American and Hispanic or Latina women. Measures Women (N = 410) completed a questionnaire and accelerometry to measure PA. Neighborhoods (N = 163) were classified as lower- or higher-income by median household income at the census-tract level. PARs were audited using the PARA (physical activity resource assessment). Access to quality PARs was determined by a composite index (QPAR) of features, amenities, and incivilities. Analysis Repeated measures analyses of variance were used to examine changes in PA by (1) neighborhood income (lower/higher) and QPAR (lower/higher) groups, and (2) neighborhood income (lower/higher) and number of PARs (lower/higher) groups, adjusting for ethnicity, household income, and body mass index. Results Women in neighborhoods with lower QPAR scores had small increases in self-reported vigorous PA (M Δ = 327.8 metabolic equivalent of task [MET]-min/wk) and decreases in accelerometer PA (M = −3.4 min/d), compared to those with higher QPAR scores who had larger increases in self-reported vigorous PA (M Δ = 709.8 MET-min/wk) and increased accelerometer PA (M = 3.9 min/d). There was a significant interaction between changes in leisure-time PA, QPAR score, and number of PARs (p =.049). Women with both more PARs and higher QPAR scores reported greater increases in leisure-time PA than women with fewer PARs and lower QPAR scores. Conclusion Access to higher-quality PARs can help increase or maintain PA over time regardless of neighborhood income. PAR quality is a separate and distinct, important determinant of PA in ethnic minority women. PMID:24524382

  18. A secure web-based approach for accessing transitional health information for people with traumatic brain injury.

    PubMed

    Lemaire, E D; Deforge, D; Marshall, S; Curran, D

    2006-03-01

    A web-based transitional health record was created to provide regional healthcare professionals with ubiquitous access to information on people with brain injuries as they move through the healthcare system. Participants included public, private, and community healthcare organizations/providers in Eastern Ontario (Canada). One hundred and nineteen service providers and 39 brain injury survivors registered over 6 months. Fifty-eight percent received English and 42% received bilingual services (English-French). Public health providers contacted the regional service coordinator more than private providers (52% urban centres, 26% rural service providers, and 22% both areas). Thirty-five percent of contacts were for technical difficulties, 32% registration inquiries, 21% forms and processes, 6% resources, and 6% education. Seventeen technical enquiries required action by technical support personnel: 41% digital certificates, 29% web forms, and 12% log-in. This web-based approach to clinical information sharing provided access to relevant data as clients moved through or re-entered the health system. Improvements include automated digital certificate management, institutional health records system integration, and more referral tracking tools. More sensitive test data could be accessed on-line with increasing consumer/clinician confidence. In addition to a strong technical infrastructure, human resource issues are a major information security component and require continuing attention to ensure a viable on-line information environment.

  19. Intent-based resource deployment in wireless sensor networks

    NASA Astrophysics Data System (ADS)

    de Mel, Geeth; Pham, Tien; Sullivan, Paul; Grueneberg, Keith; Vasconcelos, Wamberto; Norman, Tim

    2012-06-01

    Information derived from sensor networks plays a crucial role in the success of many critical tasks such as surveillance, and border monitoring. In order to derive the correct information at the right time, sensor data must be captured at desired locations with respect to the operational tasks in concern. Therefore, it is important that at the planning stage of a mission, sensing resources are best placed in the field to capture the required data. For example, consider a mission goal identify snipers, in an operational area before troops are deployed - two acoustic arrays and a day-night video camera are needed to successfully achieve this goal. This is because, if the resources are placed in correct locations, two acoustic arrays could provide direction of the shooter and a possible location by triangulating acoustic data whereas the day-night camera could produce an affirmative image of the perpetrators. In order to deploy the sensing resources intelligently to support the user decisions, in this paper we propose a Semantic Web based knowledge layer to identify the required resources in a sensor network and deploy the needed resources through a sensor infrastructure. The knowledge layer captures crucial information such as resources configurations, their intended use (e.g., two acoustic arrays deployed in a particular formation with day-night camera are needed to identify perpetrators in a possible sniper attack). The underlying sensor infrastructure will assists the process by exposing the information about deployed resources, resources in theatre, and location information about tasks, resources and so on.

  20. Strategies for searching and managing evidence-based practice resources.

    PubMed

    Robb, Meigan; Shellenbarger, Teresa

    2014-10-01

    Evidence-based nursing practice requires the use of effective search strategies to locate relevant resources to guide practice change. Continuing education and staff development professionals can assist nurses to conduct effective literature searches. This article provides suggestions for strategies to aid in identifying search terms. Strategies also are recommended for refining searches by using controlled vocabulary, truncation, Boolean operators, PICOT (Population/Patient Problem, Intervention, Comparison, Outcome, Time) searching, and search limits. Suggestions for methods of managing resources also are identified. Using these approaches will assist in more effective literature searches and may help evidence-based practice decisions.

  1. VIEWCACHE: An incremental pointer-based access method for autonomous interoperable databases

    NASA Technical Reports Server (NTRS)

    Roussopoulos, N.; Sellis, Timos

    1993-01-01

    One of the biggest problems facing NASA today is to provide scientists efficient access to a large number of distributed databases. Our pointer-based incremental data base access method, VIEWCACHE, provides such an interface for accessing distributed datasets and directories. VIEWCACHE allows database browsing and search performing inter-database cross-referencing with no actual data movement between database sites. This organization and processing is especially suitable for managing Astrophysics databases which are physically distributed all over the world. Once the search is complete, the set of collected pointers pointing to the desired data are cached. VIEWCACHE includes spatial access methods for accessing image datasets, which provide much easier query formulation by referring directly to the image and very efficient search for objects contained within a two-dimensional window. We will develop and optimize a VIEWCACHE External Gateway Access to database management systems to facilitate database search.

  2. Role-based access control through on-demand classification of electronic health record.

    PubMed

    Tiwari, Basant; Kumar, Abhay

    2015-01-01

    Electronic health records (EHR) provides convenient method to exchange medical information of patients between different healthcare providers. Access control mechanism in healthcare services characterises authorising users to access EHR records. Role Based Access Control helps to restrict EHRs to users in a certain role. Significant works have been carried out for access control since last one decade but little emphasis has been given to on-demand role based access control. Presented work achieved access control through physical data isolation which is more robust and secure. We propose an algorithm in which selective combination of policies for each user of the EHR database has been defined. We extend well known data mining technique 'classification' to group EHRs with respect to the given role. Algorithm works by taking various roles as class and defined their features as a vector. Here, features are used as a Feature Vector for classification to describe user authority. PMID:26559071

  3. Role-based access control through on-demand classification of electronic health record.

    PubMed

    Tiwari, Basant; Kumar, Abhay

    2015-01-01

    Electronic health records (EHR) provides convenient method to exchange medical information of patients between different healthcare providers. Access control mechanism in healthcare services characterises authorising users to access EHR records. Role Based Access Control helps to restrict EHRs to users in a certain role. Significant works have been carried out for access control since last one decade but little emphasis has been given to on-demand role based access control. Presented work achieved access control through physical data isolation which is more robust and secure. We propose an algorithm in which selective combination of policies for each user of the EHR database has been defined. We extend well known data mining technique 'classification' to group EHRs with respect to the given role. Algorithm works by taking various roles as class and defined their features as a vector. Here, features are used as a Feature Vector for classification to describe user authority.

  4. The Resource-Based View and Value: The Customer-Based View of the Firm

    ERIC Educational Resources Information Center

    Clulow, Val; Barry, Carol; Gerstman, Julie

    2007-01-01

    Purpose: The resource-based view (RBV) explores the role of key resources, identified as intangible assets and capabilities, in creating competitive advantage and superior performance. To a great extent the conceptual analysis and empirical research within the RBV has focused on the firm's perspective of key resources and the value to the firm of…

  5. A dynamic access control method based on QoS requirement

    NASA Astrophysics Data System (ADS)

    Li, Chunquan; Wang, Yanwei; Yang, Baoye; Hu, Chunyang

    2013-03-01

    A dynamic access control method is put forward to ensure the security of the sharing service in Cloud Manufacturing, according to the application characteristics of cloud manufacturing collaborative task. The role-based access control (RBAC) model is extended according to the characteristics of cloud manufacturing in this method. The constraints are considered, which are from QoS requirement of the task context to access control, based on the traditional static authorization. The fuzzy policy rules are established about the weighted interval value of permissions. The access control authorities of executable service by users are dynamically adjusted through the fuzzy reasoning based on the QoS requirement of task. The main elements of the model are described. The fuzzy reasoning algorithm of weighted interval value based QoS requirement is studied. An effective method is provided to resolve the access control of cloud manufacturing.

  6. Combining Semantic Web technologies with Multi-Agent Systems for integrated access to biological resources.

    PubMed

    García-Sánchez, Francisco; Fernández-Breis, Jesualdo Tomás; Valencia-García, Rafael; Gómez, Juan Miguel; Martínez-Béjar, Rodrigo

    2008-10-01

    The increasing volume and diversity of information in biomedical research is demanding new approaches for data integration in this domain. Semantic Web technologies and applications can leverage the potential of biomedical information integration and discovery, facing the problem of semantic heterogeneity of biomedical information sources. In such an environment, agent technology can assist users in discovering and invoking the services available on the Internet. In this paper we present SEMMAS, an ontology-based, domain-independent framework for seamlessly integrating Intelligent Agents and Semantic Web Services. Our approach is backed with a proof-of-concept implementation where the breakthrough and efficiency of integrating disparate biomedical information sources have been tested.

  7. Measuring Land Uses Accessibility by Using Fuzzy Majority Gis-Based Multicriteria Decision Analysis Case Study: Malayer City

    NASA Astrophysics Data System (ADS)

    Taravat, A.; Yari, A.; Rajaei, M.; Mousavian, R.

    2014-10-01

    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).

  8. SURE (Science User Resource Expert): A science planning and scheduling assistant for a resource based environment

    NASA Technical Reports Server (NTRS)

    Thalman, Nancy E.; Sparn, Thomas P.

    1990-01-01

    SURE (Science User Resource Expert) is one of three components that compose the SURPASS (Science User Resource Planning and Scheduling System). This system is a planning and scheduling tool which supports distributed planning and scheduling, based on resource allocation and optimization. Currently SURE is being used within the SURPASS by the UARS (Upper Atmospheric Research Satellite) SOLSTICE instrument to build a daily science plan and activity schedule and in a prototyping effort with NASA GSFC to demonstrate distributed planning and scheduling for the SOLSTICE II instrument on the EOS platform. For the SOLSTICE application the SURE utilizes a rule-based system. Development of a rule-based program using Ada CLIPS as opposed to using conventional programming, allows for capture of the science planning and scheduling heuristics in rules and provides flexibility in inserting or removing rules as the scientific objectives and mission constraints change. The SURE system's role as a component in the SURPASS, the purpose of the SURE planning and scheduling tool, the SURE knowledge base, and the software architecture of the SURE component are described.

  9. Privacy and Access Control for IHE-Based Systems

    NASA Astrophysics Data System (ADS)

    Katt, Basel; Breu, Ruth; Hafner, Micahel; Schabetsberger, Thomas; Mair, Richard; Wozak, Florian

    Electronic Health Record (EHR) is the heart element of any e-health system, which aims at improving the quality and efficiency of healthcare through the use of information and communication technologies. The sensitivity of the data contained in the health record poses a great challenge to security. In this paper we propose a security architecture for EHR systems that are conform with IHE profiles. In this architecture we are tackling the problems of access control and privacy. Furthermore, a prototypical implementation of the proposed model is presented.

  10. The Maize Genetics and Genomics Database. The Community Resource for Access to Diverse Maize Data1

    PubMed Central

    Lawrence, Carolyn J.; Seigfried, Trent E.; Brendel, Volker

    2005-01-01

    The Maize Genetics and Genomics Database (MaizeGDB) serves the maize (Zea mays) research community by making a wealth of genetics and genomics data available through an intuitive Web-based interface. The goals of the MaizeGDB project are 3-fold: to provide a central repository for public maize information; to present the data through the MaizeGDB Web site in a way that recapitulates biological relationships; and to provide an array of computational tools that address biological questions in an easy-to-use manner at the site. In addition to these primary tasks, MaizeGDB team members also serve the community of maize geneticists by lending technical support for community activities, including the annual Maize Genetics Conference and various workshops, teaching researchers to use both the MaizeGDB Web site and Community Curation Tools, and engaging in collaboration with individual research groups to make their unique data types available through MaizeGDB. PMID:15888678

  11. Access and Performance Measures in Research Libraries.

    ERIC Educational Resources Information Center

    Shapiro, Beth J.

    1991-01-01

    Argues that, as library roles change, providing access to information resources is becoming more important than acquisition of library resources and that libraries should be evaluated based upon what they actually do. Access and performance measures are proposed to supplement the statistics collected by the Association of Research Libraries. (30…

  12. Women's independent access to productive resources: fish ponds in the Oxbow Lakes Project, Bangladesh.

    PubMed

    Nathan, D; Apu, N A

    1998-01-01

    This article analyzes the experiences of women in acquiring user rights to fish ponds on government owned lands in the Oxbow Lakes Project in Bangladesh. The analysis describes the significance, functioning, and problems of women in fish farming. The field reports were based on the authors' involvement in implementation of the extension of fishing rights to women during 6 weeks/year over 4 years. Analysis was based on observations and discussions during project implementation and on a survey conducted in March 1997. The project involved land reforms that transferred rights to a group of poor people. Most of the lakes had been overfished. The poor fishers were organized into Lake Fishing Teams (LFTs) with the right to culture and harvest fish in lakes that were under common property management. In late 1994, at least 50% of the women were included in the Fish Farming Groups (FFGs) to manage fish culture in ponds constructed in shallow areas of the lake shore. The proportion of women was increased to 75% in 1994-95 and favored women-headed households. By March 1997, there were 510 members of FFGs, of whom 84% were single, poor women. Women had low participation in fish sales and netting and guarding the harvest. Women in mixed gender groups complained that men dominated the key decision-making and financial areas. Production averaged 1500 kg/hectare in 1995-96. FFGs had higher expenses for feed and fertilizer than LFTs. This endeavor earned higher per capita income than poultry raising. All women groups performed better than mixed groups. These groups increased assertiveness and self-confidence. PMID:12179931

  13. Women's independent access to productive resources: fish ponds in the Oxbow Lakes Project, Bangladesh.

    PubMed

    Nathan, D; Apu, N A

    1998-01-01

    This article analyzes the experiences of women in acquiring user rights to fish ponds on government owned lands in the Oxbow Lakes Project in Bangladesh. The analysis describes the significance, functioning, and problems of women in fish farming. The field reports were based on the authors' involvement in implementation of the extension of fishing rights to women during 6 weeks/year over 4 years. Analysis was based on observations and discussions during project implementation and on a survey conducted in March 1997. The project involved land reforms that transferred rights to a group of poor people. Most of the lakes had been overfished. The poor fishers were organized into Lake Fishing Teams (LFTs) with the right to culture and harvest fish in lakes that were under common property management. In late 1994, at least 50% of the women were included in the Fish Farming Groups (FFGs) to manage fish culture in ponds constructed in shallow areas of the lake shore. The proportion of women was increased to 75% in 1994-95 and favored women-headed households. By March 1997, there were 510 members of FFGs, of whom 84% were single, poor women. Women had low participation in fish sales and netting and guarding the harvest. Women in mixed gender groups complained that men dominated the key decision-making and financial areas. Production averaged 1500 kg/hectare in 1995-96. FFGs had higher expenses for feed and fertilizer than LFTs. This endeavor earned higher per capita income than poultry raising. All women groups performed better than mixed groups. These groups increased assertiveness and self-confidence.

  14. Evidence-based preventive practice guidelines. Qualitative study of useful resources on the Internet.

    PubMed Central

    Feightner, J. W.; Marshall, J. N.; Sangster, L. M.; Wathen, C. N.; Quintana, Y.

    2001-01-01

    OBJECTIVE: To explore family physicians' perspectives on how best to provide evidence-based preventive clinical practice guidelines (CPGs) to physicians on the Internet. DESIGN: Focus groups. SETTING: A large, urban centre and a rural community hospital. PARTICIPANTS: Thirty-four of more than 150 family physicians who subscribed to an e-mail discussion group. METHOD: Qualitative survey of four focus groups, analysis of transcripts and researchers' notes. MAIN FINDINGS: Four themes characterized participants' preferences for disseminating preventive CPGs on the Internet: content expectations; quick, easy access to information; trustworthiness of information; and implications for clinical practice. CONCLUSION: Physicians want quick, easy access to trustworthy information. A website for preventive CPGs with these characteristics would be a useful resource. PMID:11561334

  15. Work-Based Learning: A Resource Guide for Change.

    ERIC Educational Resources Information Center

    Hudson River Center for Program Development, Glenmont, NY.

    This document is intended to provide New York schools, business/industry representatives, and others with resources to develop or further refine work-based learning (WBL) strategies or components. Section 1 presents background information on the following topics: (1) the scope of WBL; (2) foundations for the development of WBL; (3) categories of…

  16. Development of Computer-Based Resources for Textile Education.

    ERIC Educational Resources Information Center

    Hopkins, Teresa; Thomas, Andrew; Bailey, Mike

    1998-01-01

    Describes the production of computer-based resources for students of textiles and engineering in the United Kingdom. Highlights include funding by the Teaching and Learning Technology Programme (TLTP), courseware author/subject expert interaction, usage test and evaluation, authoring software, graphics, computer-aided design simulation, self-test…

  17. A Competency-Based Model for Developing Human Resource Professionals

    ERIC Educational Resources Information Center

    McEvoy, Glenn M.; Hayton, James C.; Warnick, Alan P.; Mumford, Troy V.; Hanks, Steven H.; Blahna, Mary Jo

    2005-01-01

    This article describes a framework for the design and implementation of a competency-based curriculum for graduate management education. The article also outlines how this model has been implemented at one university in the context of a graduate degree in human resource management. Among the significant challenges discussed are the identification…

  18. A Competency-Based Human Resource Development Strategy

    ERIC Educational Resources Information Center

    Gangani, Noordeen; McLean, Gary N.; Braden, Richard A.

    2006-01-01

    This article explores some of the major issues in developing and implementing a competency-based human resource development strategy. The article summarizes a brief literature review on how competency models can be developed and implemented to improve employee performance. A case study is presented of American Medical Systems (AMS), a mid-sized…

  19. Human Resource Development Planning Based on Accreditation Guidelines.

    ERIC Educational Resources Information Center

    Dowd, Steven B.

    This paper presents a preliminary human resource development plan for the radiography program sponsored by Lincoln Land Community College (Illinois). The plan is based on the "Essentials and Guidelines of an Accredited Program for the Radiographer," initially adopted in 1944, and most recently revised in 1990, it involves the integration of…

  20. Discrete Kalman Filter based Sensor Fusion for Robust Accessibility Interfaces

    NASA Astrophysics Data System (ADS)

    Ghersi, I.; Mariño, M.; Miralles, M. T.

    2016-04-01

    Human-machine interfaces have evolved, benefiting from the growing access to devices with superior, embedded signal-processing capabilities, as well as through new sensors that allow the estimation of movements and gestures, resulting in increasingly intuitive interfaces. In this context, sensor fusion for the estimation of the spatial orientation of body segments allows to achieve more robust solutions, overcoming specific disadvantages derived from the use of isolated sensors, such as the sensitivity of magnetic-field sensors to external influences, when used in uncontrolled environments. In this work, a method for the combination of image-processing data and angular-velocity registers from a 3D MEMS gyroscope, through a Discrete-time Kalman Filter, is proposed and deployed as an alternate user interface for mobile devices, in which an on-screen pointer is controlled with head movements. Results concerning general performance of the method are presented, as well as a comparative analysis, under a dedicated test application, with results from a previous version of this system, in which the relative-orientation information was acquired directly from MEMS sensors (3D magnetometer-accelerometer). These results show an improved response for this new version of the pointer, both in terms of precision and response time, while keeping many of the benefits that were highlighted for its predecessor, giving place to a complementary method for signal acquisition that can be used as an alternative-input device, as well as for accessibility solutions.

  1. Pilot evaluation of a web-based intervention targeting sexual health service access.

    PubMed

    Brown, K E; Newby, K; Caley, M; Danahay, A; Kehal, I

    2016-04-01

    Sexual health service access is fundamental to good sexual health, yet interventions designed to address this have rarely been implemented or evaluated. In this article, pilot evaluation findings for a targeted public health behavior change intervention, delivered via a website and web-app, aiming to increase uptake of sexual health services among 13-19-year olds are reported. A pre-post questionnaire-based design was used. Matched baseline and follow-up data were identified from 148 respondents aged 13-18 years. Outcome measures were self-reported service access, self-reported intention to access services and beliefs about services and service access identified through needs analysis. Objective service access data provided by local sexual health services were also analyzed. Analysis suggests the intervention had a significant positive effect on psychological barriers to and antecedents of service access among females. Males, who reported greater confidence in service access compared with females, significantly increased service access by time 2 follow-up. Available objective service access data support the assertion that the intervention may have led to increases in service access. There is real promise for this novel digital intervention. Further evaluation is planned as the model is licensed to and rolled out by other local authorities in the United Kingdom. PMID:26928566

  2. Access to Comprehensive School-Based Health Services for Children and Youth, 1995-1998.

    ERIC Educational Resources Information Center

    Access, 1998

    1998-01-01

    This document consists of 11 consecutive issues of the newsletter "Access," published across a four-year period. "Access" presents information on public policy and research of interest to school-based health programs (SBHC) for children and youth. The major topics covered by the newsletters are as follows: (1) a conference, "Breaking New Ground,"…

  3. Differences in Access to Care among Students Using School-Based Health Centers

    ERIC Educational Resources Information Center

    Parasuraman, Sarika Rane; Shi, Leiyu

    2015-01-01

    Health care reform has changed the landscape for the nation's health safety net, and school-based health centers (SBHCs) remain an important part of this system. However, few large-scale studies have been conducted to assess their impact on access to care. This study investigated differences in access among a nationally representative sample of…

  4. Increasing Access to Evidence-Based Practices and Knowledge and Attitudes: A Pilot Study

    ERIC Educational Resources Information Center

    Leathers, Sonya J.; Strand, Tonya C.

    2013-01-01

    Objective: This pilot study examined the effect of increasing field instructors access to information about evidence-based practices (EBPs) on their level of knowledge and attitudes about EBPs. Method: Eighteen field instructors received training and access to a library with extensive online journals. Half were randomly selected to also receive a…

  5. Developing Guidelines for Evaluating the Adaptation of Accessible Web-Based Learning Materials

    ERIC Educational Resources Information Center

    Radovan, Marko; Perdih, Mojca

    2016-01-01

    E-learning is a rapidly developing form of education. One of the key characteristics of e-learning is flexibility, which enables easier access to knowledge for everyone. Information and communications technology (ICT), which is e-learning's main component, enables alternative means of accessing the web-based learning materials that comprise the…

  6. What Does Role-Based Access Look Like? Examples from States

    ERIC Educational Resources Information Center

    Data Quality Campaign, 2008

    2008-01-01

    Data are only useful if people are able to access, understand and use them. Without access to the right information, stakeholders are forced to make decisions based on anecdote, experience or instinct. For information to be useful, it must be timely, readily available, and easy to understand. Different stakeholders need and are entitled to access…

  7. A Large-Scale Knowledge Management Method Based on the Analysis of the Use of Online Knowledge Resources

    PubMed Central

    Del Fiol, Guilherme; Cimino, James J; Maviglia, Saverio M; Strasberg, Howard R; Jackson, Brian R; Hulse, Nathan C

    2010-01-01

    Online health knowledge resources can be integrated into electronic health record systems using decision support tools known as “infobuttons.” In this study we describe a knowledge management method based on the analysis of knowledge resource use via infobuttons in multiple institutions. Methods: We conducted a two-phase analysis of laboratory test infobutton sessions at three healthcare institutions accessing two knowledge resources. The primary study measure was session coverage, i.e. the rate of infobutton sessions in which resources retrieved relevant content. Results: In Phase One, resources covered 78.5% of the study sessions. In addition, a subset of 38 noncovered tests that most frequently raised questions was identified. In Phase Two, content development guided by the outcomes of Phase One resulted in a 4% average coverage increase. Conclusion: The described method is a valuable approach to large-scale knowledge management in rapidly changing domains. PMID:21346957

  8. VIEWCACHE: An incremental pointer-based access method for autonomous interoperable databases

    NASA Technical Reports Server (NTRS)

    Roussopoulos, N.; Sellis, Timos

    1992-01-01

    One of biggest problems facing NASA today is to provide scientists efficient access to a large number of distributed databases. Our pointer-based incremental database access method, VIEWCACHE, provides such an interface for accessing distributed data sets and directories. VIEWCACHE allows database browsing and search performing inter-database cross-referencing with no actual data movement between database sites. This organization and processing is especially suitable for managing Astrophysics databases which are physically distributed all over the world. Once the search is complete, the set of collected pointers pointing to the desired data are cached. VIEWCACHE includes spatial access methods for accessing image data sets, which provide much easier query formulation by referring directly to the image and very efficient search for objects contained within a two-dimensional window. We will develop and optimize a VIEWCACHE External Gateway Access to database management systems to facilitate distributed database search.

  9. Non-orthogonal optical multicarrier access based on filter bank and SCMA.

    PubMed

    Liu, Bo; Zhang, Lijia; Xin, Xiangjun

    2015-10-19

    This paper proposes a novel non-orthogonal optical multicarrier access system based on filter bank and sparse code multiple access (SCMA). It offers released frequency offset and better spectral efficiency for multicarrier access. An experiment of 73.68 Gb/s filter bank-based multicarrier (FBMC) SCMA system with 60 km single mode fiber link is performed to demonstrate the feasibility. The comparison between fast Fourier transform (FFT) based multicarrier and the proposed scheme is also investigated in the experiment. PMID:26480395

  10. Materials selection for oxide-based resistive random access memories

    SciTech Connect

    Guo, Yuzheng; Robertson, John

    2014-12-01

    The energies of atomic processes in resistive random access memories (RRAMs) are calculated for four typical oxides, HfO{sub 2}, TiO{sub 2}, Ta{sub 2}O{sub 5}, and Al{sub 2}O{sub 3}, to define a materials selection process. O vacancies have the lowest defect formation energy in the O-poor limit and dominate the processes. A band diagram defines the operating Fermi energy and O chemical potential range. It is shown how the scavenger metal can be used to vary the O vacancy formation energy, via controlling the O chemical potential, and the mean Fermi energy. The high endurance of Ta{sub 2}O{sub 5} RRAM is related to its more stable amorphous phase and the adaptive lattice rearrangements of its O vacancy.

  11. Review of wildlife resources of Vandenberg Air Force Base, California

    NASA Technical Reports Server (NTRS)

    Breininger, David R.

    1989-01-01

    Wildlife resources are reviewed for purposes of developing a Base Biological Monitoring Program (BMP) for Vandenberg Air Force Base (VAFB) in Santa Barbara County, California. The review and recommendations were prepared by review of applicable scientific literature and environmental documents for VAFB, discussing information needs with natural resource management professionals at VAFB, and observations of base field conditions. This process found that there are 29 federally listed vertebrates (endangered, threatened, or Category 2) that occur or may occur in the vicinity of VAFB. There are also 63 other state listed or regionally declining species that may occur in the vicinity of VAFB. Habitats of VAFB represent a very valuable environmental resource for rare and declining wildlife in California. However, little information is available on VAFB wildlife resources other than lists of species that occur or are expected to occur. Recommendations are presented to initiate a long-term wildlife monitoring program at VAFB to provide information for environmental impact assessment and wise land use planning.

  12. Wetland resources investigation based on 3S technology

    NASA Astrophysics Data System (ADS)

    Lin, Hui; Jing, Haitao; Zhang, Lianpeng

    2008-10-01

    Wetland is a special ecosystem between land and water . It can provide massive foods, raw material, water resources and habitat for human being, animals and plants, Wetlands are so important that wetlands' development, management and protection have become the focus of public attention ."3S" integration technology was applied to investigate wetland resources in Shandong Province ,the investigation is based on remote sensing(RS) information, combining wetlandrelated geographic information system(GIS) data concerning existing geology, hydrology, land, lakes, rivers, oceans and environmental protection, using the Global Positioning System (GPS) to determine location accurately and conveniently , as well as multi-source information to demonstrate each other based on "3S" integration technology. In addition, the remote sensing(RS) interpretation shall be perfected by combining house interpretation with field survey and combining interpretation results with known data.By contrasting various types of wetland resources with the TM, ETM, SPOT image and combining with the various types of information, remote sensing interpretation symbols of various types of wetland resources are established respectively. According to the interpretation symbols, we systematically interpret the wetland resources of Shandong Province. In accordance with the purpose of different work, we interpret the image of 1987, 1996 and 2000. Finally, various interpretation results are processed by computer scanning, Vectored, projection transformation and image mosaic, wetland resources distribution map is worked out and wetland resources database of Shandong Province is established in succession. Through the investigation, wetland resource in Shandong province can be divided into 4 major categories and 17 sub-categories. we have ascertained the range and area of each category as well as their present utilization status.. By investigating and calculating, the total area of wetland in Shandong Province is

  13. The GeoDataPortal: A Standards-based Environmental Modeling Data Access and Manipulation Toolkit

    NASA Astrophysics Data System (ADS)

    Blodgett, D. L.; Kunicki, T.; Booth, N.; Suftin, I.; Zoerb, R.; Walker, J.

    2010-12-01

    Environmental modelers from fields of study such as climatology, hydrology, geology, and ecology rely on many data sources and processing methods that are common across these disciplines. Interest in inter-disciplinary, loosely coupled modeling and data sharing is increasing among scientists from the USGS, other agencies, and academia. For example, hydrologic modelers need downscaled climate change scenarios and land cover data summarized for the watersheds they are modeling. Subsequently, ecological modelers are interested in soil moisture information for a particular habitat type as predicted by the hydrologic modeler. The USGS Center for Integrated Data Analytics Geo Data Portal (GDP) project seeks to facilitate this loose model coupling data sharing through broadly applicable open-source web processing services. These services simplify and streamline the time consuming and resource intensive tasks that are barriers to inter-disciplinary collaboration. The GDP framework includes a catalog describing projects, models, data, processes, and how they relate. Using newly introduced data, or sources already known to the catalog, the GDP facilitates access to sub-sets and common derivatives of data in numerous formats on disparate web servers. The GDP performs many of the critical functions needed to summarize data sources into modeling units regardless of scale or volume. A user can specify their analysis zones or modeling units as an Open Geospatial Consortium (OGC) standard Web Feature Service (WFS). Utilities to cache Shapefiles and other common GIS input formats have been developed to aid in making the geometry available for processing via WFS. Dataset access in the GDP relies primarily on the Unidata NetCDF-Java library’s common data model. Data transfer relies on methods provided by Unidata’s Thematic Real-time Environmental Data Distribution System Data Server (TDS). TDS services of interest include the Open-source Project for a Network Data Access Protocol

  14. eMental Health Experiences and Expectations: A Survey of Youths' Web-Based Resource Preferences in Canada

    PubMed Central

    Mar, Marissa Y; Neilson, Erika K; Werker, Gregory R; Krausz, Michael

    2014-01-01

    Background Due to the high prevalence of psychological disorders and the lack of access to care among Canadian youth, the development of accessible services is increasingly important. eMental Health is an expanding field that may help to meet this need through the provision of mental health care using technology. Objective The primary goals of the study are to explore youth experiences with traditional and online mental health resources, and to investigate youth expectations for mental health websites. Methods A Web-based survey containing quantitative and qualitative questions was delivered to youth aged 17-24 years. Participants were surveyed to evaluate their use of mental health resources as well as their preferences for various components of a potential mental health website. Results A total of 521 surveys were completed. Most participants (61.6%, 321/521) indicated that they had used the Internet to seek information or help for feelings they were experiencing. If they were going through a difficult time, 82.9% (432/521) of participants were either “somewhat likely” or “very likely” to use an information-based website and 76.8% (400/521) reported that they were either “somewhat unlikely” or “very unlikely” to visit social media websites for information or help-seeking purposes during this time. Most (87.7%, 458/521) participants rated their online privacy as very important. Descriptions of interventions and treatments was the most highly rated feature to have in a mental health-related website, with 91.9% (479/521) of participants regarding it as “important” or “very important”. When presented a select list of existing Canadian mental health-related websites, most participants had not accessed any of the sites. Of the few who had, the Canadian Mental Health Association website was the most accessed website (5.8%, 30/521). Other mental health-related websites were accessed by only 10.9% of the participants (57/521). Conclusions The

  15. DISTRIBUTED STRUCTURE-SEARCHABLE TOXICITY (DSSTOX) DATABASE NETWORK: MAKING PUBLIC TOXICITY DATA RESOURCES MORE ACCESSIBLE AND USABLE FOR DATA EXPLORATION AND SAR DEVELOPMENT

    EPA Science Inventory


    Distributed Structure-Searchable Toxicity (DSSTox) Database Network: Making Public Toxicity Data Resources More Accessible and U sable for Data Exploration and SAR Development

    Many sources of public toxicity data are not currently linked to chemical structure, are not ...

  16. Making Higher Education More Affordable, One Course Reading at a Time: Academic Libraries as Key Advocates for Open Access Textbooks and Educational Resources

    ERIC Educational Resources Information Center

    Okamoto, Karen

    2013-01-01

    Open access textbooks (OATs) and educational resources (OERs) are being lauded as a viable alternative to costly print textbooks. Some academic libraries are joining the OER movement by creating guides to open repositories. Others are promoting OATs and OERs, reviewing them, and even helping to create them. This article analyzes how academic…

  17. Family Experiences with Accessing Information, Social and Resource Supports as Participants in Services for Their Special Needs Child over Three Years of Age

    ERIC Educational Resources Information Center

    Busillo-Aguayo, Joannie

    2010-01-01

    Families of children with special needs often experience substantial stress and an increased need for informational, social, or resource support throughout their child's growth and development. However, supports for families of children older than three often report a severe shortage of supports and difficulty accessing and utilizing them. Using…

  18. Social Capital of Non-Traditional Students at a German University. Do Traditional and Non-Traditional Students Access Different Social Resources?

    ERIC Educational Resources Information Center

    Brändle, Tobias; Häuberer, Julia

    2015-01-01

    Social capital is of particular value for the acquisition of education. Not only does it prevent scholars from dropping out but it improves the educational achievement. The paper focuses on access to social resources by traditional and non-traditional students at a German university and asks if there are group differences considering this…

  19. Communication, Control, and Computer Access for Disabled and Elderly Individuals. ResourceBook 4: Update to Books 1, 2, and 3.

    ERIC Educational Resources Information Center

    Borden, Peter A., Ed.; Vanderheiden, Gregg C., Ed.

    This update to the three-volume first edition of the "Rehab/Education ResourceBook Series" describes special software and products pertaining to communication, control, and computer access, designed specifically for the needs of disabled and elderly people. The 22 chapters cover: speech aids; pointing and typing aids; training and communication…

  20. StaphyloBase: a specialized genomic resource for the staphylococcal research community.

    PubMed

    Heydari, Hamed; Mutha, Naresh V R; Mahmud, Mahafizul Imran; Siow, Cheuk Chuen; Wee, Wei Yee; Wong, Guat Jah; Yazdi, Amir Hessam; Ang, Mia Yang; Choo, Siew Woh

    2014-01-01

    With the advent of high-throughput sequencing technologies, many staphylococcal genomes have been sequenced. Comparative analysis of these strains will provide better understanding of their biology, phylogeny, virulence and taxonomy, which may contribute to better management of diseases caused by staphylococcal pathogens. We developed StaphyloBase with the goal of having a one-stop genomic resource platform for the scientific community to access, retrieve, download, browse, search, visualize and analyse the staphylococcal genomic data and annotations. We anticipate this resource platform will facilitate the analysis of staphylococcal genomic data, particularly in comparative analyses. StaphyloBase currently has a collection of 754 032 protein-coding sequences (CDSs), 19 258 rRNAs and 15 965 tRNAs from 292 genomes of different staphylococcal species. Information about these features is also included, such as putative functions, subcellular localizations and gene/protein sequences. Our web implementation supports diverse query types and the exploration of CDS- and RNA-type information in detail using an AJAX-based real-time search system. JBrowse has also been incorporated to allow rapid and seamless browsing of staphylococcal genomes. The Pairwise Genome Comparison tool is designed for comparative genomic analysis, for example, to reveal the relationships between two user-defined staphylococcal genomes. A newly designed Pathogenomics Profiling Tool (PathoProT) is also included in this platform to facilitate comparative pathogenomics analysis of staphylococcal strains. In conclusion, StaphyloBase offers access to a range of staphylococcal genomic resources as well as analysis tools for comparative analyses. Database URL: http://staphylococcus.um.edu.my/.

  1. SSR-based genetic diversity and structure of garlic accessions from Brazil.

    PubMed

    da Cunha, Camila Pinto; Resende, Francisco Vilela; Zucchi, Maria Imaculada; Pinheiro, José Baldin

    2014-10-01

    Garlic is a spice and a medicinal plant; hence, there is an increasing interest in 'developing' new varieties with different culinary properties or with high content of nutraceutical compounds. Phenotypic traits and dominant molecular markers are predominantly used to evaluate the genetic diversity of garlic clones. However, 24 SSR markers (codominant) specific for garlic are available in the literature, fostering germplasm researches. In this study, we genotyped 130 garlic accessions from Brazil and abroad using 17 polymorphic SSR markers to assess the genetic diversity and structure. This is the first attempt to evaluate a large set of accessions maintained by Brazilian institutions. A high level of redundancy was detected in the collection (50 % of the accessions represented eight haplotypes). However, non-redundant accessions presented high genetic diversity. We detected on average five alleles per locus, Shannon index of 1.2, HO of 0.5, and HE of 0.6. A core collection was set with 17 accessions, covering 100 % of the alleles with minimum redundancy. Overall FST and D values indicate a strong genetic structure within accessions. Two major groups identified by both model-based (Bayesian approach) and hierarchical clustering (UPGMA dendrogram) techniques were coherent with the classification of accessions according to maturity time (growth cycle): early-late and midseason accessions. Assessing genetic diversity and structure of garlic collections is the first step towards an efficient management and conservation of accessions in genebanks, as well as to advance future genetic studies and improvement of garlic worldwide.

  2. ACCESSING FEDERAL DATA BASES FOR CONTAMINATED SITE CLEAN-UP TECHNOLOGIES

    EPA Science Inventory

    The Federal Remediation Technologies Roundtable (Roundtable) eveloped this publication to provide information on accessing Federal data bases that contain data on innovative remediation technologies. The Roundtable includes representatives from the Department of Defense (DoD), En...

  3. Dissemination of Health-Related Research among Scientists in Three Countries: Access to Resources and Current Practices

    PubMed Central

    Tabak, Rachel G.; Reis, Rodrigo S.; Wilson, Paul; Brownson, Ross C.

    2015-01-01

    Objectives. In public health and clinical settings insufficient dissemination of evidence-based practices limits the reach of new discoveries to broad populations. This study aimed to describe characteristics of the dissemination process by researchers across three countries (Brazil, United Kingdom, and United States), explore how designing for dissemination practices has been used, and analyze factors associated with dissemination. Methods. A similar online survey was used to query researchers across the three countries; data were pooled to draw cross-country conclusions. Findings. This study identified similarities and differences between countries. Importance of dissemination to nonresearcher audiences was widely recognized as important; however, traditional academic venues were the main dissemination method. Several factors were associated with self-rated dissemination effort in the pooled sample, but these predictive factors (e.g., support and resources for dissemination) had low prevalence. Less than one-third of researchers rated their level of effort for dissemination as excellent. Respondents reported limited support and resources to make it easier for researchers who might want to disseminate their findings. Conclusion. Though intentions show the importance of dissemination, researchers across countries lack supports to increase dissemination efforts. Additional resources and training in designing for dissemination along with improved partnerships could help bridge the research-practice gap. PMID:26495287

  4. Global Wild Annual Lens Collection: A Potential Resource for Lentil Genetic Base Broadening and Yield Enhancement

    PubMed Central

    Singh, Mohar; Bisht, Ishwari Singh; Kumar, Sandeep; Dutta, Manoranjan; Bansal, Kailash Chander; Karale, Moreshwar; Sarker, Ashutosh; Amri, Ahmad; Kumar, Shiv; Datta, Swapan Kumar

    2014-01-01

    Crop wild relatives (CWRs) are invaluable gene sources for various traits of interest, yet these potential resources are themselves increasingly threatened by the impact of climate change as well as other anthropogenic and socio-economic factors. The prime goal of our research was to cover all aspects of wild Lens genetic resource management like species characterization, agro-morphological evaluation, diversity assessment, and development of representative sets for its enhanced utilization in lentil base broadening and yield improvement initiatives. We characterized and evaluated extensively, the global wild annual Lens taxa, originating from twenty seven counties under two agro-climatic conditions of India consecutively for three cropping seasons. Results on various qualitative and quantitative characters including two foliar diseases showed wide variations for almost all yield attributing traits including multiple disease resistance in the wild species, L. nigricans and L. ervoides accessions. The core set developed from the entire Lens taxa had maximum representation from Turkey and Syria, indicating rich diversity in accessions originating from these regions. Diversity analysis also indicated wide geographical variations across genepool as was reflected in the core set. Potential use of core set, as an initial starting material, for genetic base broadening of cultivated lentil was also suggested. PMID:25254552

  5. Global wild annual Lens collection: a potential resource for lentil genetic base broadening and yield enhancement.

    PubMed

    Singh, Mohar; Bisht, Ishwari Singh; Kumar, Sandeep; Dutta, Manoranjan; Bansal, Kailash Chander; Karale, Moreshwar; Sarker, Ashutosh; Amri, Ahmad; Kumar, Shiv; Datta, Swapan Kumar

    2014-01-01

    Crop wild relatives (CWRs) are invaluable gene sources for various traits of interest, yet these potential resources are themselves increasingly threatened by the impact of climate change as well as other anthropogenic and socio-economic factors. The prime goal of our research was to cover all aspects of wild Lens genetic resource management like species characterization, agro-morphological evaluation, diversity assessment, and development of representative sets for its enhanced utilization in lentil base broadening and yield improvement initiatives. We characterized and evaluated extensively, the global wild annual Lens taxa, originating from twenty seven counties under two agro-climatic conditions of India consecutively for three cropping seasons. Results on various qualitative and quantitative characters including two foliar diseases showed wide variations for almost all yield attributing traits including multiple disease resistance in the wild species, L. nigricans and L. ervoides accessions. The core set developed from the entire Lens taxa had maximum representation from Turkey and Syria, indicating rich diversity in accessions originating from these regions. Diversity analysis also indicated wide geographical variations across genepool as was reflected in the core set. Potential use of core set, as an initial starting material, for genetic base broadening of cultivated lentil was also suggested.

  6. Global wild annual Lens collection: a potential resource for lentil genetic base broadening and yield enhancement.

    PubMed

    Singh, Mohar; Bisht, Ishwari Singh; Kumar, Sandeep; Dutta, Manoranjan; Bansal, Kailash Chander; Karale, Moreshwar; Sarker, Ashutosh; Amri, Ahmad; Kumar, Shiv; Datta, Swapan Kumar

    2014-01-01

    Crop wild relatives (CWRs) are invaluable gene sources for various traits of interest, yet these potential resources are themselves increasingly threatened by the impact of climate change as well as other anthropogenic and socio-economic factors. The prime goal of our research was to cover all aspects of wild Lens genetic resource management like species characterization, agro-morphological evaluation, diversity assessment, and development of representative sets for its enhanced utilization in lentil base broadening and yield improvement initiatives. We characterized and evaluated extensively, the global wild annual Lens taxa, originating from twenty seven counties under two agro-climatic conditions of India consecutively for three cropping seasons. Results on various qualitative and quantitative characters including two foliar diseases showed wide variations for almost all yield attributing traits including multiple disease resistance in the wild species, L. nigricans and L. ervoides accessions. The core set developed from the entire Lens taxa had maximum representation from Turkey and Syria, indicating rich diversity in accessions originating from these regions. Diversity analysis also indicated wide geographical variations across genepool as was reflected in the core set. Potential use of core set, as an initial starting material, for genetic base broadening of cultivated lentil was also suggested. PMID:25254552

  7. Psychiatry and the resource-based relative value scale.

    PubMed

    Dorwart, R A; Chartock, L R

    1988-10-01

    Attention to reform of reimbursement for psychiatric inpatient services largely focuses on the use of prospective payment systems, e.g., payment based on diagnosis-related groups (DGRs), for hospitals. Recently, there also has been interest in proposals for altering physician reimbursement (inpatient and outpatient) by using physician DRGs, capitation models, or relative value scales instead of the charge-based, fee-for-service model. The authors review the resource-based relative value scale (RBRVS) as an option for psychiatry. The RBRVS uses the setting, the time spent, the difficulty in treating the patient, the training, and the psychiatrist's role to determine reimbursement rates.

  8. Problem-Based Knowledge Access: Useful Design Principles for Clinical Hypertexts

    PubMed Central

    Estey, Greg; Oliver, Diane E.; Chueh, Henry C.; Levinson, John R.; Zielstorff, Rita D.; Barnett, G. Octo

    1990-01-01

    This paper describes experience with the development of two systems for clinical knowledge access. Six design principles for implementing such systems in hypertext or related media are offered under the heading “Problem-based Knowledge Access”. These design principles concern: contextual indexing, categories of knowledge access, constraints on hypertext linking, graphical indexing, maintaining the illusion of “no navigation” and problem-based content hierarchies.

  9. Accessing technical data bases using STDS: A collection of scenarios

    NASA Technical Reports Server (NTRS)

    Hardgrave, W. T.

    1975-01-01

    A line by line description is given of sessions using the set-theoretic data system (STDS) to interact with technical data bases. The data bases contain data from actual applications at NASA Langley Research Center. The report is meant to be a tutorial document that accompanies set processing in a network environment.

  10. Access and Completion of a Web-Based Treatment in a Population-Based Sample of Tornado-Affected Adolescents

    PubMed Central

    Price, Matthew; Yuen, Erica; Davidson, Tatiana M.; Hubel, Grace; Ruggiero, Kenneth J.

    2015-01-01

    Although web-based treatments have significant potential to assess and treat difficult to reach populations, such as trauma-exposed adolescents, the extent that such treatments are accessed and used is unclear. The present study evaluated the proportion of adolescents who accessed and completed a web-based treatment for post-disaster mental health symptoms. Correlates of access and completion were examined. A sample of 2,000 adolescents living in tornado-affected communities was assessed via structured telephone interview and invited to a web-based treatment. The modular treatment addressed symptoms of PTSD, depression, and alcohol and tobacco use. Participants were randomized to experimental or control conditions after accessing the site. Overall access for the intervention was 35.8%. Module completion for those who accessed ranged from 52.8% to 85.6%. Adolescents with parents who used the Internet to obtain health-related information were more likely to access the treatment. Adolescent males were less likely to access the treatment. Future work is needed to identify strategies to further increase the reach of web-based treatments to provide clinical services in a post-disaster context. PMID:25622071

  11. Access and completion of a Web-based treatment in a population-based sample of tornado-affected adolescents.

    PubMed

    Price, Matthew; Yuen, Erica K; Davidson, Tatiana M; Hubel, Grace; Ruggiero, Kenneth J

    2015-08-01

    Although Web-based treatments have significant potential to assess and treat difficult-to-reach populations, such as trauma-exposed adolescents, the extent that such treatments are accessed and used is unclear. The present study evaluated the proportion of adolescents who accessed and completed a Web-based treatment for postdisaster mental health symptoms. Correlates of access and completion were examined. A sample of 2,000 adolescents living in tornado-affected communities was assessed via structured telephone interview and invited to a Web-based treatment. The modular treatment addressed symptoms of posttraumatic stress disorder, depression, and alcohol and tobacco use. Participants were randomized to experimental or control conditions after accessing the site. Overall access for the intervention was 35.8%. Module completion for those who accessed ranged from 52.8% to 85.6%. Adolescents with parents who used the Internet to obtain health-related information were more likely to access the treatment. Adolescent males were less likely to access the treatment. Future work is needed to identify strategies to further increase the reach of Web-based treatments to provide clinical services in a postdisaster context.

  12. Access and completion of a Web-based treatment in a population-based sample of tornado-affected adolescents.

    PubMed

    Price, Matthew; Yuen, Erica K; Davidson, Tatiana M; Hubel, Grace; Ruggiero, Kenneth J

    2015-08-01

    Although Web-based treatments have significant potential to assess and treat difficult-to-reach populations, such as trauma-exposed adolescents, the extent that such treatments are accessed and used is unclear. The present study evaluated the proportion of adolescents who accessed and completed a Web-based treatment for postdisaster mental health symptoms. Correlates of access and completion were examined. A sample of 2,000 adolescents living in tornado-affected communities was assessed via structured telephone interview and invited to a Web-based treatment. The modular treatment addressed symptoms of posttraumatic stress disorder, depression, and alcohol and tobacco use. Participants were randomized to experimental or control conditions after accessing the site. Overall access for the intervention was 35.8%. Module completion for those who accessed ranged from 52.8% to 85.6%. Adolescents with parents who used the Internet to obtain health-related information were more likely to access the treatment. Adolescent males were less likely to access the treatment. Future work is needed to identify strategies to further increase the reach of Web-based treatments to provide clinical services in a postdisaster context. PMID:25622071

  13. Mars Soil-Based Resource Processing and Planetary Protection

    NASA Technical Reports Server (NTRS)

    Sanders, G. B.; Mueller, R. P.

    2015-01-01

    The ability to extract and process resources at the site of exploration into products and services, commonly referred to as In Situ Resource Utilization (ISRU), can have significant benefits for robotic and human exploration missions. In particular, the ability to use in situ resources to make propellants, fuel cell reactants, and life support consumables has been shown in studies to significantly reduce mission mass, cost, and risk, while enhancing or enabling missions not possible without the incorporation of ISRU. In December 2007, NASA completed the Mars Human Design Reference Architecture (DRA) 5.0 study. For the first time in a large scale Mars architecture study, water from Mars soil was considered as a potential resource. At the time of the study, knowledge of water resources (their form, concentration, and distribution) was extremely limited. Also, due to lack of understanding of how to apply planetary protection rules and requirements to ISRU soil-based excavation and processing, an extremely conservative approach was incorporated where only the top several centimeters of ultraviolet (UV) radiated soil could be processed (assumed to be 3% water by mass). While results of the Mars DRA 5.0 study showed that combining atmosphere processing to make oxygen and methane with soil processing to extract water provided the lowest mission mass, atmosphere processing to convert carbon dioxide (CO2) into oxygen was baselined for the mission since it was the lowest power and risk option. With increased knowledge and further clarification of Mars planetary protection rules, and the recent release of the Mars Exploration Program Analysis Group (MEPAG) report on "Special Regions and the Human Exploration of Mars", it is time to reexamine potential water resources on Mars, options for soil processing to extract water, and the implications with respect to planetary protection and Special Regions on Mars.

  14. PKI-based secure mobile access to electronic health services and data.

    PubMed

    Kambourakis, G; Maglogiannis, I; Rouskas, A

    2005-01-01

    Recent research works examine the potential employment of public-key cryptography schemes in e-health environments. In such systems, where a Public Key Infrastructure (PKI) is established beforehand, Attribute Certificates (ACs) and public key enabled protocols like TLS, can provide the appropriate mechanisms to effectively support authentication, authorization and confidentiality services. In other words, mutual trust and secure communications between all the stakeholders, namely physicians, patients and e-health service providers, can be successfully established and maintained. Furthermore, as the recently introduced mobile devices with access to computer-based patient record systems are expanding, the need of physicians and nurses to interact increasingly with such systems arises. Considering public key infrastructure requirements for mobile online health networks, this paper discusses the potential use of Attribute Certificates (ACs) in an anticipated trust model. Typical trust interactions among doctors, patients and e-health providers are presented, indicating that resourceful security mechanisms and trust control can be obtained and implemented. The application of attribute certificates to support medical mobile service provision along with the utilization of the de-facto TLS protocol to offer competent confidentiality and authorization services is also presented and evaluated through experimentation, using both the 802.11 WLAN and General Packet Radio Service (GPRS) networks.

  15. Internet 2 Access Grid.

    ERIC Educational Resources Information Center

    Simco, Greg

    2002-01-01

    Discussion of the Internet 2 Initiative, which is based on collaboration among universities, businesses, and government, focuses on the Access Grid, a Computational Grid that includes interactive multimedia within high-speed networks to provide resources to enable remote collaboration among the research community. (Author/LRW)

  16. The international phosphate resource data base; development and maintenance

    USGS Publications Warehouse

    Bridges, Nancy J.

    1983-01-01

    The IPRDB (International Phosphate Resource Data Base) was developed to provide a single computerized source of geologic information about phosphate deposits worldwide. It is expected that this data base will encourage more thorough scientific analyses of phosphate deposits and assessments of undiscovered phosphate resources, and that methods of data collection and storage will be streamlined. Because the database was intended to serve as a repository for diverse and detailed data, a large amount of the early research effort was devoted to the design and development of the system. To date (1982), the file remains incomplete. All development work and file maintenance work on IPRDB was suspended as of October 1, 1982; this paper is intended to document the steps taken up to that date. The computer programs listed in the appendices were written specifically for the IPRDB phosbib file and are of limited future use.

  17. Vision-based coaching: optimizing resources for leader development.

    PubMed

    Passarelli, Angela M

    2015-01-01

    Leaders develop in the direction of their dreams, not in the direction of their deficits. Yet many coaching interactions intended to promote a leader's development fail to leverage the benefits of the individual's personal vision. Drawing on intentional change theory, this article postulates that coaching interactions that emphasize a leader's personal vision (future aspirations and core identity) evoke a psychophysiological state characterized by positive emotions, cognitive openness, and optimal neurobiological functioning for complex goal pursuit. Vision-based coaching, via this psychophysiological state, generates a host of relational and motivational resources critical to the developmental process. These resources include: formation of a positive coaching relationship, expansion of the leader's identity, increased vitality, activation of learning goals, and a promotion-orientation. Organizational outcomes as well as limitations to vision-based coaching are discussed. PMID:25926803

  18. Vision-based coaching: optimizing resources for leader development

    PubMed Central

    Passarelli, Angela M.

    2015-01-01

    Leaders develop in the direction of their dreams, not in the direction of their deficits. Yet many coaching interactions intended to promote a leader’s development fail to leverage the benefits of the individual’s personal vision. Drawing on intentional change theory, this article postulates that coaching interactions that emphasize a leader’s personal vision (future aspirations and core identity) evoke a psychophysiological state characterized by positive emotions, cognitive openness, and optimal neurobiological functioning for complex goal pursuit. Vision-based coaching, via this psychophysiological state, generates a host of relational and motivational resources critical to the developmental process. These resources include: formation of a positive coaching relationship, expansion of the leader’s identity, increased vitality, activation of learning goals, and a promotion–orientation. Organizational outcomes as well as limitations to vision-based coaching are discussed. PMID:25926803

  19. Vision-based coaching: optimizing resources for leader development.

    PubMed

    Passarelli, Angela M

    2015-01-01

    Leaders develop in the direction of their dreams, not in the direction of their deficits. Yet many coaching interactions intended to promote a leader's development fail to leverage the benefits of the individual's personal vision. Drawing on intentional change theory, this article postulates that coaching interactions that emphasize a leader's personal vision (future aspirations and core identity) evoke a psychophysiological state characterized by positive emotions, cognitive openness, and optimal neurobiological functioning for complex goal pursuit. Vision-based coaching, via this psychophysiological state, generates a host of relational and motivational resources critical to the developmental process. These resources include: formation of a positive coaching relationship, expansion of the leader's identity, increased vitality, activation of learning goals, and a promotion-orientation. Organizational outcomes as well as limitations to vision-based coaching are discussed.

  20. Validation of housing standards addressing accessibility: exploration of an activity-based approach.

    PubMed

    Helle, Tina; Iwarsson, Susanne; Brandt, Ase

    2014-10-01

    The aim was to explore the use of an activity-based approach to determine the validity of a set of housing standards addressing accessibility. This included examination of the frequency and the extent of accessibility problems among older people with physical functional limitations who used no mobility device (n = 10) or who used a wheelchair (n = 10) or a rollator (n = 10). The setting was a kitchen designed according to present housing standards. The participants prepared lunch in the kitchen. Accessibility problems were assessed by observation and self-report. Differences between the three participant groups were examined. Performing well-known kitchen activities was associated with accessibility problems for all three participant groups, in particular those using a wheelchair. The overall validity of the housing standards examined was poor. Observing older people interacting with realistic environments while performing real everyday activities seems to be an appropriate method for assessing accessibility problems.

  1. Incorporating Internet-based Interventions into Couple Therapy: Available Resources and Recommended Uses

    PubMed Central

    Cicila, Larisa N.; Georgia, Emily J.; Doss, Brian D.

    2015-01-01

    Although there are a number of highly efficacious in-person treatments designed to ameliorate relationship distress, only a small proportion of distressed couples seek out in-person treatment. Recently developed internet-based interventions based on these in-person treatments are a promising way to circumvent common barriers to in-person treatment and give more distressed couples access to these efficacious interventions. The overarching aims of this review are to provide couple and family therapists with a broad overview of the available internet-based interventions and provide suggestions about how these interventions might be utilized before, during, or after in-person treatment. First, we review internet-based interventions targeting individual psychopathology (e.g. anxiety and depression). These interventions would be particularly useful as an adjunctive resource for in-person couple or family therapy when referrals for a concurrent in-person individual therapist are not feasible (because of time, financial, or geographic constraints). The majority of the review centers on internet-based interventions for distressed couples and covers four distinct types of resources: relationship advice websites, assessment/feedback interventions, enrichment interventions for satisfied couples, and interventions targeting at-risk or distressed couples. We close with a case study of one couple’s journey through a newly developed intervention targeting at-risk couples, OurRelationship.com, and provide two appendices with information on currently available internet-based interventions. PMID:26405375

  2. Meeting clinician information needs by integrating access to the medical record and knowledge resources via the Web.

    PubMed

    Tarczy-Hornoch, P; Kwan-Gett, T S; Fouche, L; Hoath, J; Fuller, S; Ibrahim, K N; Ketchell, D S; LoGerfo, J P; Goldberg, H I

    1997-01-01

    MINDscape is a web based integrated interface to diverse sources of clinical information including both patient specific information (electronic medical record) as well as medical knowledge (the "digital library") to provide "just in time" information at the point of care. It was developed at the University of Washington to meet clinical information needs both as identified locally and by a review of the literature. Beta testing by over 600 clinicians is in progress and medical centers wide access scheduled for Fall 1997. We describe the information needs we sought to meet and the ongoing evaluation approach we are taking to ensure the information needs of a diverse group of clinicians are met. The iterative evolution of the interface from prototype, to alpha to large scale beta testing is reported. Integration of information occurs at three levels: integration of information by patient, integration of information by provider, and integration of patient specific information with medical reference material and decision support tools.

  3. Auction-based resource allocation game under a hierarchical structure

    NASA Astrophysics Data System (ADS)

    Cui, Yingying; Zou, Suli; Ma, Zhongjing

    2016-01-01

    This paper studies a class of auction-based resource allocation games under a hierarchical structure, such that each supplier is assigned a certain amount of resource from a single provider and allocates it to its buyers with auction mechanisms. To implement the efficient allocations for the underlying hierarchical system, we first design an auction mechanism, for each local system composed of a supplier and its buyers, which inherits the advantages of the progressive second price mechanism. By employing a dynamic algorithm, each local system converges to its own efficient Nash equilibrium, at which the efficient resource allocation is achieved and the bidding prices of all the buyers in this local system are identical with each other. After the local systems reach their own equilibria respectively, the resources assigned to suppliers are readjusted via a dynamic hierarchical algorithm with respect to the bidding prices associated with the implemented equilibria of local systems. By applying the proposed hierarchical process, the formulated hierarchical system can converge to the efficient allocation under certain mild conditions. The developed results in this work are demonstrated with simulations.

  4. Awareness-based game-theoretic space resource management

    NASA Astrophysics Data System (ADS)

    Chen, Genshe; Chen, Huimin; Pham, Khanh; Blasch, Erik; Cruz, Jose B., Jr.

    2009-05-01

    Over recent decades, the space environment becomes more complex with a significant increase in space debris and a greater density of spacecraft, which poses great difficulties to efficient and reliable space operations. In this paper we present a Hierarchical Sensor Management (HSM) method to space operations by (a) accommodating awareness modeling and updating and (b) collaborative search and tracking space objects. The basic approach is described as follows. Firstly, partition the relevant region of interest into district cells. Second, initialize and model the dynamics of each cell with awareness and object covariance according to prior information. Secondly, explicitly assign sensing resources to objects with user specified requirements. Note that when an object has intelligent response to the sensing event, the sensor assigned to observe an intelligent object may switch from time-to-time between a strong, active signal mode and a passive mode to maximize the total amount of information to be obtained over a multi-step time horizon and avoid risks. Thirdly, if all explicitly specified requirements are satisfied and there are still more sensing resources available, we assign the additional sensing resources to objects without explicitly specified requirements via an information based approach. Finally, sensor scheduling is applied to each sensor-object or sensor-cell pair according to the object type. We demonstrate our method with realistic space resources management scenario using NASA's General Mission Analysis Tool (GMAT) for space object search and track with multiple space borne observers.

  5. An Optimal Mobile Service for Telecare Data Synchronization using a Role-based Access Control Model and Mobile Peer-to-Peer Technology.

    PubMed

    Ke, Chih-Kun; Lin, Zheng-Hua

    2015-09-01

    The progress of information and communication technologies (ICT) has promoted the development of healthcare which has enabled the exchange of resources and services between organizations. Organizations want to integrate mobile devices into their hospital information systems (HIS) due to the convenience to employees who are then able to perform specific healthcare processes from any location. The collection and merage of healthcare data from discrete mobile devices are worth exploring possible ways for further use, especially in remote districts without public data network (PDN) to connect the HIS. In this study, we propose an optimal mobile service which automatically synchronizes the telecare file resources among discrete mobile devices. The proposed service enforces some technical methods. The role-based access control model defines the telecare file resources accessing mechanism; the symmetric data encryption method protects telecare file resources transmitted over a mobile peer-to-peer network. The multi-criteria decision analysis method, ELECTRE (Elimination Et Choice Translating Reality), evaluates multiple criteria of the candidates' mobile devices to determine a ranking order. This optimizes the synchronization of telecare file resources among discrete mobile devices. A prototype system is implemented to examine the proposed mobile service. The results of the experiment show that the proposed mobile service can automatically and effectively synchronize telecare file resources among discrete mobile devices. The contribution of this experiment is to provide an optimal mobile service that enhances the security of telecare file resource synchronization and strengthens an organization's mobility. PMID:26259633

  6. An Optimal Mobile Service for Telecare Data Synchronization using a Role-based Access Control Model and Mobile Peer-to-Peer Technology.

    PubMed

    Ke, Chih-Kun; Lin, Zheng-Hua

    2015-09-01

    The progress of information and communication technologies (ICT) has promoted the development of healthcare which has enabled the exchange of resources and services between organizations. Organizations want to integrate mobile devices into their hospital information systems (HIS) due to the convenience to employees who are then able to perform specific healthcare processes from any location. The collection and merage of healthcare data from discrete mobile devices are worth exploring possible ways for further use, especially in remote districts without public data network (PDN) to connect the HIS. In this study, we propose an optimal mobile service which automatically synchronizes the telecare file resources among discrete mobile devices. The proposed service enforces some technical methods. The role-based access control model defines the telecare file resources accessing mechanism; the symmetric data encryption method protects telecare file resources transmitted over a mobile peer-to-peer network. The multi-criteria decision analysis method, ELECTRE (Elimination Et Choice Translating Reality), evaluates multiple criteria of the candidates' mobile devices to determine a ranking order. This optimizes the synchronization of telecare file resources among discrete mobile devices. A prototype system is implemented to examine the proposed mobile service. The results of the experiment show that the proposed mobile service can automatically and effectively synchronize telecare file resources among discrete mobile devices. The contribution of this experiment is to provide an optimal mobile service that enhances the security of telecare file resource synchronization and strengthens an organization's mobility.

  7. Improving Access to Health Care: School-Based Health Centers.

    ERIC Educational Resources Information Center

    Dowden, Shauna L.; Calvert, Richard D.; Davis, Lisa; Gullotta, Thomas P.

    This article explores an approach for better serving the complete health care needs of children, specifically, the efficacy of school-based health centers (SBHCs) to provide a service delivery mechanism capable of functioning as a medical home for children, providing primary care for both their physical and behavioral health care needs. The…

  8. A Novel Application of Agent-based Modeling: Projecting Water Access and Availability Using a Coupled Hydrologic Agent-based Model in the Nzoia Basin, Kenya

    NASA Astrophysics Data System (ADS)

    Le, A.; Pricope, N. G.

    2015-12-01

    Projections indicate that increasing population density, food production, and urbanization in conjunction with changing climate conditions will place stress on water resource availability. As a result, a holistic understanding of current and future water resource distribution is necessary for creating strategies to identify the most sustainable means of accessing this resource. Currently, most water resource management strategies rely on the application of global climate predictions to physically based hydrologic models to understand potential changes in water availability. However, the need to focus on understanding community-level social behaviors that determine individual water usage is becoming increasingly evident, as predictions derived only from hydrologic models cannot accurately represent the coevolution of basin hydrology and human water and land usage. Models that are better equipped to represent the complexity and heterogeneity of human systems and satellite-derived products in place of or in conjunction with historic data significantly improve preexisting hydrologic model accuracy and application outcomes. We used a novel agent-based sociotechnical model that combines the Soil and Water Assessment Tool (SWAT) and Agent Analyst and applied it in the Nzoia Basin, an area in western Kenya that is becoming rapidly urbanized and industrialized. Informed by a combination of satellite-derived products and over 150 household surveys, the combined sociotechnical model provided unique insight into how populations self-organize and make decisions based on water availability. In addition, the model depicted how population organization and current management alter water availability currently and in the future.

  9. Soybean Knowledge Base (SoyKB): a Web Resource for Soybean Translational Genomics

    SciTech Connect

    Joshi, Trupti; Patil, Kapil; Fitzpatrick, Michael R.; Franklin, Levi D.; Yao, Qiuming; Cook, Jeffrey R.; Wang, Zhem; Libault, Marc; Brechenmacher, Laurent; Valliyodan, Babu; Wu, Xiaolei; Cheng, Jianlin; Stacey, Gary; Nguyen, Henry T.; Xu, Dong

    2012-01-17

    Background: Soybean Knowledge Base (SoyKB) is a comprehensive all-inclusive web resource for soybean translational genomics. SoyKB is designed to handle the management and integration of soybean genomics, transcriptomics, proteomics and metabolomics data along with annotation of gene function and biological pathway. It contains information on four entities, namely genes, microRNAs, metabolites and single nucleotide polymorphisms (SNPs). Methods: SoyKB has many useful tools such as Affymetrix probe ID search, gene family search, multiple gene/ metabolite search supporting co-expression analysis, and protein 3D structure viewer as well as download and upload capacity for experimental data and annotations. It has four tiers of registration, which control different levels of access to public and private data. It allows users of certain levels to share their expertise by adding comments to the data. It has a user-friendly web interface together with genome browser and pathway viewer, which display data in an intuitive manner to the soybean researchers, producers and consumers. Conclusions: SoyKB addresses the increasing need of the soybean research community to have a one-stop-shop functional and translational omics web resource for information retrieval and analysis in a user-friendly way. SoyKB can be publicly accessed at http://soykb.org/.

  10. Developing a distributed HTML5-based search engine for geospatial resource discovery

    NASA Astrophysics Data System (ADS)

    ZHOU, N.; XIA, J.; Nebert, D.; Yang, C.; Gui, Z.; Liu, K.

    2013-12-01

    With explosive growth of data, Geospatial Cyberinfrastructure(GCI) components are developed to manage geospatial resources, such as data discovery and data publishing. However, the efficiency of geospatial resources discovery is still challenging in that: (1) existing GCIs are usually developed for users of specific domains. Users may have to visit a number of GCIs to find appropriate resources; (2) The complexity of decentralized network environment usually results in slow response and pool user experience; (3) Users who use different browsers and devices may have very different user experiences because of the diversity of front-end platforms (e.g. Silverlight, Flash or HTML). To address these issues, we developed a distributed and HTML5-based search engine. Specifically, (1)the search engine adopts a brokering approach to retrieve geospatial metadata from various and distributed GCIs; (2) the asynchronous record retrieval mode enhances the search performance and user interactivity; (3) the search engine based on HTML5 is able to provide unified access capabilities for users with different devices (e.g. tablet and smartphone).

  11. Access to Complex Abortion Care Service and Planning Improved through a Toll-Free Telephone Resource Line.

    PubMed

    Norman, Wendy V; Hestrin, Barbara; Dueck, Royce

    2014-01-01

    Background. Providing equitable access to the full range of reproductive health services over wide geographic areas presents significant challenges to any health system. We present a review of a service provision model which has provided improved access to abortion care; support for complex issues experienced by women seeking nonjudgmental family planning health services; and a mechanism to collect information on access barriers. The toll-free pregnancy options service (POS) of British Columbia Women's Hospital and Health Centre sought to improve access to services and overcome barriers experienced by women seeking abortion. Methods. We describe the development and implementation of a province-wide toll-free telephone counseling and access facilitation service, including establishment of a provincial network of local abortion service providers in the Canadian province of British Columbia from 1998 to 2010. Results. Over 2000 women annually access service via the POS line, networks of care providers are established and linked to central support, and central program planners receive timely information on new service gaps and access barriers. Conclusion. This novel service has been successful in addressing inequities and access barriers identified as priorities before service establishment. The service provided unanticipated benefits to health care planning and monitoring of provincial health care related service delivery and gaps. This model for low cost health service delivery may realize similar benefits when applied to other health care systems where access and referral barriers exist. PMID:24693291

  12. The role of intraosseous vascular access in the out-of-hospital environment (resource document to NAEMSP position statement).

    PubMed

    Fowler, Raymond; Gallagher, John V; Isaacs, S Marshal; Ossman, Eric; Pepe, Paul; Wayne, Marvin

    2007-01-01

    Thousands of critically ill emergency patients are treated in the out-of-hospital setting in the United States every year. In many patients intravenous (IV) therapy cannot be initiated because of inadequate access to peripheral veins. In some cases, this lack of vascular access may limit benefit of medications because of late administration.[1] Both speed and overall success of vascular access are important when evaluating potential methodologies for their use in the out-of-hospital environment. Insertion of an IV cannula has been reported to require substantial time in the prehospital environment, with a recent study reporting an average successful intravenous line placement time of 4.4+/-2.8 minutes.[2] In critically ill pediatric patients, vascular access may present substantial difficulties to the provide.[3] Intraosseous access may provide a significant time saving which may benefit many critically ill patients, both by decreasing the time to achieve access and by decreasing the time to administration of indicated medications.[4] Achieving rapid administration of medications may facilitate the care of critically ill patients.[1] Devices are now available that permit rapid, accurate access to the intraosseous space. Recent changes in the American Heart Association's resuscitation guidelines state that the intraosseous route should be the first alternative to difficult or delayed intravenous access.[5] With these considerations, the role of intraosseous vascular access in the out-of-hospital environment should be reemphasized.

  13. The InterPro BioMart: federated query and web service access to the InterPro Resource.

    PubMed

    Jones, Philip; Binns, David; McMenamin, Conor; McAnulla, Craig; Hunter, Sarah

    2011-01-01

    The InterPro BioMart provides users with query-optimized access to predictions of family classification, protein domains and functional sites, based on a broad spectrum of integrated computational models ('signatures') that are generated by the InterPro member databases: Gene3D, HAMAP, PANTHER, Pfam, PIRSF, PRINTS, ProDom, PROSITE, SMART, SUPERFAMILY and TIGRFAMs. These predictions are provided for all protein sequences from both the UniProt Knowledge Base and the UniParc protein sequence archive. The InterPro BioMart is supplementary to the primary InterPro web interface (http://www.ebi.ac.uk/interpro), providing a web service and the ability to build complex, custom queries that can efficiently return thousands of rows of data in a variety of formats. This article describes the information available from the InterPro BioMart and illustrates its utility with examples of how to build queries that return useful biological information. Database URL: http://www.ebi.ac.uk/interpro/biomart/martview.

  14. Overcoming inertia: increasing public health departments' access to evidence-based information and promoting usage to inform practice.

    PubMed

    LaPelle, Nancy R; Dahlen, Karen; Gabella, Barbara A; Juhl, Ashley L; Martin, Elaine

    2014-01-01

    In 2010, the New England Region-National Network of Libraries of Medicine at University of Massachusetts Medical School received funding to improve information access for public health departments in 6 New England states and Colorado. Public health departments were provided with desktop digital access to licensed e-resources available through special pricing. In January through mid-April 2012, we evaluated the effectiveness of providing access to and training for using e-resources to public health department staff to motivate usage in practice. We found that additional strategies are needed to accomplish this.

  15. Overcoming Inertia: Increasing Public Health Departments’ Access to Evidence-Based Information and Promoting Usage to Inform Practice

    PubMed Central

    Dahlen, Karen; Gabella, Barbara A.; Juhl, Ashley L.; Martin, DA, Elaine

    2014-01-01

    In 2010, the New England Region–National Network of Libraries of Medicine at University of Massachusetts Medical School received funding to improve information access for public health departments in 6 New England states and Colorado. Public health departments were provided with desktop digital access to licensed e-resources available through special pricing. In January through mid-April 2012, we evaluated the effectiveness of providing access to and training for using e-resources to public health department staff to motivate usage in practice. We found that additional strategies are needed to accomplish this. PMID:24228662

  16. Genetic divergence among accessions of Axonopus jesuiticus x A. scoparius based on morphological and agronomical traits.

    PubMed

    Scheffer-Basso, Simone M; Favaretto, Adriana; Felini, Vanderleia; Gomes, Claudinei C; Carneiro, Luis E; Cecchin, Kalinca

    2014-03-01

    This study had the objective of assessing the genetic divergence in giant missionary grass (Axonopus jesuiticus x A. scoparius) germplasm based on morphological and agronomic traits. Five accessions were evaluated in the field: V14337, V14403, V14404, V14405 and V14406. Three contrasting groups were formed using the UPGMA clustering method: V14337 and V14404 formed one group, V14403 and V14405 formed another, and V14406 was isolated from the other accessions. The most striking traits for the identification of the accessions were the height of the plant and the change color of the leaf. Only V14406 accession had purplish green leaves. The other four accessions differed with regards to plant height and dry matter production, with superiority of V14337 and V14404 accessions. The high similarity, as assessed by the mean Euclidean distance, suggests that V14337 and V14404 share the same genotype. The genotypic variability among accessions indicates their potential use in breeding programs.

  17. Uranium resource assessment by the Geological Survey; methodology and plan to update the national resource base

    USGS Publications Warehouse

    Finch, Warren Irvin; McCammon, Richard B.

    1987-01-01

    Based on the Memorandum of Understanding {MOU) of September 20, 1984, between the U.S. Geological Survey of the U.S. Department of Interior and the Energy Information Administration {EIA) of the U.S. Department of Energy {DOE), the U.S. Geological Survey began to make estimates of the undiscovered uranium endowment of selected areas of the United States in 1985. A modified NURE {National Uranium Resource Evaluation) method will be used in place of the standard NURE method of the DOE that was used for the national assessment reported in October 1980. The modified method, here named the 'deposit-size-frequency' {DSF) method, is presented for the first time, and calculations by the two methods are compared using an illustrative example based on preliminary estimates for the first area to be evaluated under the MOU. The results demonstrate that the estimate of the endowment using the DSF method is significantly larger and more uncertain than the estimate obtained by the NURE method. We believe that the DSF method produces a more realistic estimate because the principal factor estimated in the endowment equation is disaggregated into more parts and is more closely tied to specific geologic knowledge than by the NURE method. The DSF method consists of modifying the standard NURE estimation equation, U=AxFxTxG, by replacing the factors FxT by a single factor that represents the tonnage for the total number of deposits in all size classes. Use of the DSF method requires that the size frequency of deposits in a known or control area has been established and that the relation of the size-frequency distribution of deposits to probable controlling geologic factors has been determined. Using these relations, the principal scientist {PS) first estimates the number and range of size classes and then, for each size class, estimates the lower limit, most likely value, and upper limit of the numbers of deposits in the favorable area. Once these probable estimates have been refined

  18. The resilience activation framework: a conceptual model of how access to social resources promotes adaptation and rapid recovery in post-disaster settings.

    PubMed

    Abramson, David M; Grattan, Lynn M; Mayer, Brian; Colten, Craig E; Arosemena, Farah A; Bedimo-Rung, Ariane; Lichtveld, Maureen

    2015-01-01

    A number of governmental agencies have called for enhancing citizens' resilience as a means of preparing populations in advance of disasters, and as a counterbalance to social and individual vulnerabilities. This increasing scholarly, policy, and programmatic interest in promoting individual and communal resilience presents a challenge to the research and practice communities: to develop a translational framework that can accommodate multidisciplinary scientific perspectives into a single, applied model. The Resilience Activation Framework provides a basis for testing how access to social resources, such as formal and informal social support and help, promotes positive adaptation or reduced psychopathology among individuals and communities exposed to the acute collective stressors associated with disasters, whether human-made, natural, or technological in origin. Articulating the mechanisms by which access to social resources activate and sustain resilience capacities for optimal mental health outcomes post-disaster can lead to the development of effective preventive and early intervention programs.

  19. The Resilience Activation Framework: A conceptual model of how access to social resources promotes adaptation and rapid recovery in post-disaster settings

    PubMed Central

    Abramson, David M.; Grattan, Lynn M.; Mayer, Brian; Colten, Craig E.; Arosemena, Farah A.; Rung, Ariane; Lichtveld, Maureen

    2014-01-01

    A number of governmental agencies have called for enhancing citizen’s resilience as a means of preparing populations in advance of disasters, and as a counter-balance to social and individual vulnerabilities. This increasing scholarly, policy and programmatic interest in promoting individual and communal resilience presents a challenge to the research and practice communities: to develop a translational framework that can accommodate multi-disciplinary scientific perspectives into a single, applied model. The Resilience Activation Framework provides a basis for testing how access to social resources, such as formal and informal social support and help, promotes positive adaptation or reduced psychopathology among individuals and communities exposed to the acute collective stressors associated with disasters, whether manmade, natural, or technological in origin. Articulating the mechanisms by which access to social resources activate and sustain resilience capacities for optimal mental health outcomes post-disaster can lead to the development of effective preventive and early intervention programs. PMID:24870399

  20. [Optimal allocation of irrigation water resources based on systematical strategy].

    PubMed

    Cheng, Shuai; Zhang, Shu-qing

    2015-01-01

    With the development of the society and economy, as well as the rapid increase of population, more and more water is needed by human, which intensified the shortage of water resources. The scarcity of water resources and growing competition of water in different water use sectors reduce water availability for irrigation, so it is significant to plan and manage irrigation water resources scientifically and reasonably for improving water use efficiency (WUE) and ensuring food security. Many investigations indicate that WUE can be increased by optimization of water use. However, present studies focused primarily on a particular aspect or scale, which lack systematic analysis on the problem of irrigation water allocation. By summarizing previous related studies, especially those based on intelligent algorithms, this article proposed a multi-level, multi-scale framework for allocating irrigation water, and illustrated the basic theory of each component of the framework. Systematical strategy of optimal irrigation water allocation can not only control the total volume of irrigation water on the time scale, but also reduce water loss on the spatial scale. It could provide scientific basis and technical support for improving the irrigation water management level and ensuring the food security. PMID:25985685

  1. An enhancement of the role-based access control model to facilitate information access management in context of team collaboration and workflow.

    PubMed

    Le, Xuan Hung; Doll, Terry; Barbosu, Monica; Luque, Amneris; Wang, Dongwen

    2012-12-01

    Although information access control models have been developed and applied to various applications, few of the previous works have addressed the issue of managing information access in the combined context of team collaboration and workflow. To facilitate this requirement, we have enhanced the Role-Based Access Control (RBAC) model through formulating universal constraints, defining bridging entities and contributing attributes, extending access permissions to include workflow contexts, synthesizing a role-based access delegation model to target on specific objects, and developing domain ontologies as instantiations of the general model to particular applications. We have successfully applied this model to the New York State HIV Clinical Education Initiative (CEI) project to address the specific needs of information management in collaborative processes. An initial evaluation has shown this model achieved a high level of agreement with an existing system when applied to 4576 cases (kappa=0.801). Comparing to a reference standard, the sensitivity and specificity of the enhanced RBAC model were at the level of 97-100%. These results indicate that the enhanced RBAC model can be effectively used for information access management in context of team collaboration and workflow to coordinate clinical education programs. Future research is required to incrementally develop additional types of universal constraints, to further investigate how the workflow context and access delegation can be enriched to support the various needs on information access management in collaborative processes, and to examine the generalizability of the enhanced RBAC model for other applications in clinical education, biomedical research, and patient care.

  2. Efficient Information Access for Location-Based Services in Mobile Environments

    ERIC Educational Resources Information Center

    Lee, Chi Keung

    2009-01-01

    The demand for pervasive access of location-related information (e.g., local traffic, restaurant locations, navigation maps, weather conditions, pollution index, etc.) fosters a tremendous application base of "Location Based Services (LBSs)". Without loss of generality, we model location-related information as "spatial objects" and the accesses…

  3. Area-Based Partnerships in Rural Poland: The Post-Accession Experience

    ERIC Educational Resources Information Center

    Furmankiewicz, Marek; Thompson, Nicola; Zielinska, Marta

    2010-01-01

    The paper examines the characteristics of area-based partnerships in rural Poland. It is based on the study of partnerships created after the accession to the European Union in 2004. Partnership structures have been rapidly adopted in rural Poland due to opportunities provided by the LEADER+ Pilot Programme. However, the research showed that…

  4. Web-Based Online Public Access Catalogues of IIT Libraries in India: An Evaluative Study

    ERIC Educational Resources Information Center

    Madhusudhan, Margam; Aggarwal, Shalini

    2011-01-01

    Purpose: The purpose of the paper is to examine the various features and components of web-based online public access catalogues (OPACs) of IIT libraries in India with the help of a specially designed evaluation checklist. Design/methodology/approach: The various features of the web-based OPACs in six IIT libraries (IIT Delhi, IIT Bombay, IIT…

  5. Provider Perspectives on School-Based Mental Health for Urban Minority Youth: Access and Services

    ERIC Educational Resources Information Center

    Gamble, Brandon E.; Lambros, Katina M.

    2014-01-01

    This article provides results from a qualitative study on the efforts of school-based mental health providers (SBMHPs) who serve students in urban, suburban, and ethnically diverse settings to help families access quality mental health services. School-based mental health plays a key role in the provision of direct and indirect intervention…

  6. Educational Infrastructure and Resources for Sustainable Access to Schooling and Outcomes: The Case of Early Literacy Development in Southern Tanzania

    ERIC Educational Resources Information Center

    Ngwaru, Jacob Marriote; Oluga, Mary

    2015-01-01

    Following on the 1990 and 2000 World Conferences on Education for All, African governments increased their focus on access to schooling (but not necessarily on outcomes) by providing more facilities for increased enrolments. The learning outcomes that had been neglected led to a call to focus on more sustainable access--re-examining the quality of…

  7. South Florida Information Access (SOFIA) metadata for the U.S. Geological Survey Greater Everglades place-based studies

    USGS Publications Warehouse

    Stapleton, Jo Anne; Sonenshein, Roy

    2004-01-01

    Beginning in 1995 the U.S. Geological Survey (USGS) funded scientific research to support the restoration of the Greater Everglades area and to supply decision makers and resource mangers with sound data on which to base their actions. However, none of the research and resulting data is useful if it can?t be discovered, can?t be assessed for utility in an application, can?t be accessed, or is in an undetermined format. The decision was made early in the USGS Place-Based Studies (PBS) program to create a ?one-stop? entry for information and data about USGS research results. To facilitate the discovery process some mechanism was needed to allow standardized queries about data. The FGDC metadata standard has been used to document the South Florida PBS data from the beginning.

  8. Development of a digital geographic data base for resource planning in a wildland environment

    NASA Technical Reports Server (NTRS)

    Ritter, P. R.; Benson, A. S.; Nedeff, N. E.

    1981-01-01

    Multiple resource planning requires the ability to access information for several parameters in a coordinated way. Attempts to do this manually, through the use of multiple transparent overlays or similar techniques can become awkward if there are more than a few parameters under consideration. One solution to this problem is to use a computer system to collect and organize the information into a data base that will make access and analysis easier, even for large numbers of parameters. The increase in the types and forms of remote sensing data and the decrease in costs for computer systems in the last decade has made this approach more popular than in the past. This paper describes the development of one such data base for the Big Basin Redwoods State Park in the Santa Cruz Mountains in California. The data base contains information for satellite spectral data, soil type, vegetation type, and hypsographic data and was developed for use in a cooperative project being conducted by personnel from the Remote Sensing Research Program and the California Department of Parks and Recreation

  9. Parallel Harmony Search Based Distributed Energy Resource Optimization

    SciTech Connect

    Ceylan, Oguzhan; Liu, Guodong; Tomsovic, Kevin

    2015-01-01

    This paper presents a harmony search based parallel optimization algorithm to minimize voltage deviations in three phase unbalanced electrical distribution systems and to maximize active power outputs of distributed energy resources (DR). The main contribution is to reduce the adverse impacts on voltage profile during a day as photovoltaics (PVs) output or electrical vehicles (EVs) charging changes throughout a day. The IEEE 123- bus distribution test system is modified by adding DRs and EVs under different load profiles. The simulation results show that by using parallel computing techniques, heuristic methods may be used as an alternative optimization tool in electrical power distribution systems operation.

  10. Morpheme Matching Based Text Tokenization for a Scarce Resourced Language

    PubMed Central

    Rehman, Zobia; Anwar, Waqas; Bajwa, Usama Ijaz; Xuan, Wang; Chaoying, Zhou

    2013-01-01

    Text tokenization is a fundamental pre-processing step for almost all the information processing applications. This task is nontrivial for the scarce resourced languages such as Urdu, as there is inconsistent use of space between words. In this paper a morpheme matching based approach has been proposed for Urdu text tokenization, along with some other algorithms to solve the additional issues of boundary detection of compound words, affixation, reduplication, names and abbreviations. This study resulted into 97.28% precision, 93.71% recall, and 95.46% F1-measure; while tokenizing a corpus of 57000 words by using a morpheme list with 6400 entries. PMID:23990871

  11. Morpheme matching based text tokenization for a scarce resourced language.

    PubMed

    Rehman, Zobia; Anwar, Waqas; Bajwa, Usama Ijaz; Xuan, Wang; Chaoying, Zhou

    2013-01-01

    Text tokenization is a fundamental pre-processing step for almost all the information processing applications. This task is nontrivial for the scarce resourced languages such as Urdu, as there is inconsistent use of space between words. In this paper a morpheme matching based approach has been proposed for Urdu text tokenization, along with some other algorithms to solve the additional issues of boundary detection of compound words, affixation, reduplication, names and abbreviations. This study resulted into 97.28% precision, 93.71% recall, and 95.46% F1-measure; while tokenizing a corpus of 57000 words by using a morpheme list with 6400 entries.

  12. Understanding How Resources and Capabilities Affect Performance: Actively Applying the Resource-Based View in the Classroom

    ERIC Educational Resources Information Center

    Sheehan, Norman T.

    2006-01-01

    The resource-based view is a strategic framework for understanding why some firms outperform others. Its importance is reflected in its wide inclusion in strategy texts as a tool for assessing a firm's internal strengths and weaknesses. This article outlines an experiential exercise that demonstrates how different bundles of resources and…

  13. Spatial access to health care in Costa Rica and its equity: a GIS-based study.

    PubMed

    Rosero-Bixby, Luis

    2004-04-01

    This study assembles a geographic information system (GIS) to relate the 2000 census population (demand) with an inventory of health facilities (supply). It assesses the equity in access to health care by Costa Ricans and the impact on it by the ongoing reform of the health sector. It uses traditional measurements of access based on the distance to the closest facility and proposes a more comprehensive index of accessibility that results from the aggregation of all facilities weighted by their size, proximity, and characteristics of both the population and the facility. The weighting factors of this index were determined with an econometric analysis of clinic choice in a national household sample. Half Costa Ricans reside less than 1 km away from an outpatient care outlet and 5 km away from a hospital. In equity terms, 12-14% of population are underserved according to three indicators: having an outpatient outlet within 4 km, a hospital within 25 km, and less than 0.2 MD yearly hours per person. The data show substantial improvements in access (and equity) to outpatient care between 1994 and 2000. These improvements are linked to the health sector reform implemented since 1995. The share of the population whose access to outpatient health care (density indicator) was inequitable declined from 30% to 22% in pioneering areas where reform began in 1995-96. By contrast, in areas where reform has not occurred by 2001, the proportion underserved has slightly increased from 7% to 9%. Similar results come from a simpler index based on the distance to the nearest facility. Access to hospital care has held steady in this period. The reform achieved this result by targeting the least privileged population first, and by including such measures as new community medical offices and Basic Teams for Integrated Health Care (EBAIS) to work with these populations. The GIS platform developed for this study allows pinpointing communities with inadequate access to health care, where

  14. An action-based fine-grained access control mechanism for structured documents and its application.

    PubMed

    Su, Mang; Li, Fenghua; Tang, Zhi; Yu, Yinyan; Zhou, Bo

    2014-01-01

    This paper presents an action-based fine-grained access control mechanism for structured documents. Firstly, we define a describing model for structured documents and analyze the application scenarios. The describing model could support the permission management on chapters, pages, sections, words, and pictures of structured documents. Secondly, based on the action-based access control (ABAC) model, we propose a fine-grained control protocol for structured documents by introducing temporal state and environmental state. The protocol covering different stages from document creation, to permission specification and usage control are given by using the Z-notation. Finally, we give the implementation of our mechanism and make the comparisons between the existing methods and our mechanism. The result shows that our mechanism could provide the better solution of fine-grained access control for structured documents in complicated networks. Moreover, it is more flexible and practical.

  15. Assessment of micro-regional internal accessibility based on road network

    NASA Astrophysics Data System (ADS)

    Nie, Ting; Li, Manchun; Jiang, Zhixin; Huang, Kang

    2007-06-01

    Accessibility is an important indicator of regional land-use, social justice and quality of life. It means the convenience from one place to another in a specified kind of transportation system. Wide-region based, most of the present domestic accessibility research took the high-grade highway such as highway and railway as entirely open road, without considering the service that high-grade highway provides based on intersection and railway station. This study extended to put forward arithmetic to deal with this problem in a micro-regional study area. Taking New District, Wuxi City, Jiangsu Province as a study case, this study researched the assessment of micro-regional internal accessibility based on road network including closed road. This study provides a tool to regional economical and social decision, and introduces a new view for studying relationship between people and land-use in micro-district.

  16. An Action-Based Fine-Grained Access Control Mechanism for Structured Documents and Its Application

    PubMed Central

    Su, Mang; Li, Fenghua; Tang, Zhi; Yu, Yinyan; Zhou, Bo

    2014-01-01

    This paper presents an action-based fine-grained access control mechanism for structured documents. Firstly, we define a describing model for structured documents and analyze the application scenarios. The describing model could support the permission management on chapters, pages, sections, words, and pictures of structured documents. Secondly, based on the action-based access control (ABAC) model, we propose a fine-grained control protocol for structured documents by introducing temporal state and environmental state. The protocol covering different stages from document creation, to permission specification and usage control are given by using the Z-notation. Finally, we give the implementation of our mechanism and make the comparisons between the existing methods and our mechanism. The result shows that our mechanism could provide the better solution of fine-grained access control for structured documents in complicated networks. Moreover, it is more flexible and practical. PMID:25136651

  17. Two anatomic resources of canine pelvic limb muscles based on CT and MRI.

    PubMed

    Sunico, Sarena K; Hamel, Corentin; Styner, Martin; Robertson, Ian D; Kornegay, Joe N; Bettini, Chris; Parks, Jerry; Wilber, Kathy; Smallwood, J Edgar; Thrall, Donald E

    2012-01-01

    Advances in magnetic resonance (MR) imaging and three-dimensional (3D) modeling software provide the tools necessary to create sophisticated, interactive anatomic resources that can assist in the interpretation of MR images of extremities, and learning the structure and function of limb musculature. Modeling provides advantages over dissection or consultation of print atlases because of the associated speed, flexibility, 3D nature, and elimination of superimposed arrows and labels. Our goals were to create a diagnostic atlas of pelvic limb muscles that will facilitate interpretation of MR images of patients with muscle injury and to create a 3D model of the canine pelvic limb musculature to facilitate anatomic learning. To create these resources, we used structural segmentation of MR images, a process that groups image pixels into anatomically meaningful regions. The Diagnostic Atlas is an interactive, multiplanar, web-based MR atlas of the canine pelvic limb musculature that was created by manually segmenting clinically analogous MR sequences. Higher resolution volumetric MR and computed tomography (CT) data were segmented into separately labeled volumes of data and then transformed into a multilayered 3D computer model. The 3D Model serves as a resource for students of gross anatomy, encouraging integrative learning with its highly interactive and selective display capabilities. For clinicians, the 3D Model also serves to bridge the gap between topographic and tomographic anatomy, displaying both formats alongside, or even superimposed over each other. Both projects are hosted on an open-access website, http://3dvetanatomy.ncsu.edu/

  18. Poaching risks in community-based natural resource management.

    PubMed

    Kahler, Jessica S; Roloff, Gary J; Gore, Meredith L

    2013-02-01

    Poaching can disrupt wildlife-management efforts in community-based natural resource management systems. Monitoring, estimating, and acquiring data on poaching is difficult. We used local-stakeholder knowledge and poaching records to rank and map the risk of poaching incidents in 2 areas where natural resources are managed by community members in Caprivi, Namibia. We mapped local stakeholder perceptions of the risk of poaching, risk of wildlife damage to livelihoods, and wildlife distribution and compared these maps with spatially explicit records of poaching events. Recorded poaching events and stakeholder perceptions of where poaching occurred were not spatially correlated. However, the locations of documented poaching events were spatially correlated with areas that stakeholders perceived wildlife as a threat to their livelihoods. This result suggests poaching occurred in response to wildlife damage occurred. Local stakeholders thought that wildlife populations were at high risk of being poached and that poaching occurred where there was abundant wildlife. These findings suggest stakeholders were concerned about wildlife resources in their community and indicate a need for integrated and continued monitoring of poaching activities and further interventions at the wildlife-agricultural interface. Involving stakeholders in the assessment of poaching risks promotes their participation in local conservation efforts, a central tenet of community-based management. We considered stakeholders poaching informants, rather than suspects, and our technique was spatially explicit. Different strategies to reduce poaching are likely needed in different areas. For example, interventions that reduce human-wildlife conflict may be required in residential areas, and increased and targeted patrolling may be required in more remote areas. Stakeholder-generated maps of human-wildlife interactions may be a valuable enforcement and intervention support tool.

  19. The use of free resources in a subscription-based digital library: a case study of the North Carolina AHEC Digital Library

    PubMed Central

    Schell, Mary Beth

    2006-01-01

    affiliates and AHEC Faculty/Staff. The next 3 highest user groups accessing free resources are: paid members, preceptors, and residents. Conclusion The only free resource capturing a significant number of link outs is the free link to PubMed. This reflects the importance placed on traditional medical literature searching by the ADL clinical user base. Institutional affiliates access free resources through the ADL with the second highest frequency of all the user groups. Finally, in analyzing use of free resources, it is important to note the overall limitations of this survey. While link outs are excellent indicators of frequency of use they do not provide any information about the ultimate usefulness of the resource being accessed. Further studies would need to examine not only the quantitative use of resources, but also their qualitative importance to the user. PMID:16956409

  20. Increasing utilization of Internet-based resources following efforts to promote evidence-based medicine: a national study in Taiwan

    PubMed Central

    2013-01-01

    Background Since the beginning of 2007, the National Health Research Institutes has been promoting the dissemination of evidence-based medicine (EBM). The current study examined longitudinal trends of behaviors in how hospital-based physicians and nurses have searched for medical information during the spread of EBM. Methods Cross-sectional postal questionnaire surveys were conducted in nationally representative regional hospitals of Taiwan thrice in 2007, 2009, and 2011. Demographic data were gathered concerning gender, age, working experience, teaching appointment, academic degree, and administrative position. Linear and logistic regression models were used to examine predictors and changes over time. Results Data from physicians and nurses were collected in 2007 (n = 1156), 2009 (n = 2975), and 2011 (n = 3999). There were significant increases in the use of four Internet-based resources – Web portals, online databases, electronic journals, and electronic books – across the three survey years among physicians and nurses (p < 0.001). Access to textbooks and printed journals, however, did not change over the 4-year study period. In addition, there were significant relationships between the usage of Internet-based resources and users’ characteristics. Age and faculty position were important predictors in relation to the usage among physicians and nurses, while academic degree served as a critical factor among nurses only. Conclusions Physicians and nurses used a variety of sources to look for medical information. There was a steady increase in use of Internet-based resources during the diffusion period of EBM. The findings highlight the importance of the Internet as a prominent source of medical information for main healthcare professionals. PMID:23289500

  1. Distributed Energy Resources at Naval Base Ventura County Building1512: A Sensitivity Analysis

    SciTech Connect

    Bailey, Owen C.; Marnay, Chris

    2005-06-05

    This report is the second of a two-part study by BerkeleyLab of a DER (distributed energy resources) system at Navy Base VenturaCounty (NBVC). First, a preliminary assessment ofthe cost effectivenessof distributed energy resources at Naval Base Ventura County (NBVC)Building 1512 was conducted in response to the base s request for designassistance to the Federal Energy Management Program (Bailey and Marnay,2004). That report contains a detailed description of the site and theDER-CAM (Consumer Adoption Model) parameters used. This second reportcontains sensitivity analyses of key parameters in the DER system modelof Building 1512 at NBVC and additionally considers the potential forabsorption-powered refrigeration.The prior analysis found that under thecurrent tariffs, and given assumptions about the performance andstructure of building energy loads and available generating technologycharacteristics, installing a 600 kW DER system with absorption coolingand recovery heat capabilities could deliver cost savings of about 14percent, worth $55,000 per year. However, under current conditions, thisstudy also suggested that significant savings could be obtained ifBuilding 1512 changed from its current direct access contract to a SCETOU-8 (Southern California Edison time of use tariff number 8) ratewithout installing a DER system. Evaluated on this tariff, the potentialsavings from installation of a DER system would be about 4 percent of thetotal bill, or $16,000 per year.

  2. Resources and interest among faith based organizations for influenza vaccination programs.

    PubMed

    Bond, K T; Jones, K; Ompad, D C; Vlahov, D

    2013-08-01

    In the United States, annual influenza vaccination rates are suboptimal and are well below the national health objectives. Project VIVA mobilized community members and organizations to implement an influenza vaccination program in Harlem by administering vaccines in "non-traditional" venues, such as community-based organizations, pharmacies, and faith-based organizations (FBOs). FBOs have been recognized as important venues for health promotion initiatives within medically underserved communities. However, data regarding the extent of resources and interest in health promotion programs among FBOs are sparse. We conducted a telephone survey among 115 FBOs in three New York City neighborhoods with histories of low influenza immunization rates to identify the congregation's health concerns, interest in serving as a community-based venue for influenza vaccinations, and existing resources for health programming. Twenty-six percent of the FBOs had an established health ministry, while 45 % expressed interest in developing one. Seven percent included nurses among their health activities and 16.5 % had contact with the local health department. Most FBOs expressed interest in common health promotions programs; 60 % expressed interest in providing on-site influenza vaccination programs within their organization. Health programs within FBOs can be a point of access that may improve the health of their congregants as well as the larger community.

  3. Knowledge-based personalized search engine for the Web-based Human Musculoskeletal System Resources (HMSR) in biomechanics.

    PubMed

    Dao, Tien Tuan; Hoang, Tuan Nha; Ta, Xuan Hien; Tho, Marie Christine Ho Ba

    2013-02-01

    Human musculoskeletal system resources of the human body are valuable for the learning and medical purposes. Internet-based information from conventional search engines such as Google or Yahoo cannot response to the need of useful, accurate, reliable and good-quality human musculoskeletal resources related to medical processes, pathological knowledge and practical expertise. In this present work, an advanced knowledge-based personalized search engine was developed. Our search engine was based on a client-server multi-layer multi-agent architecture and the principle of semantic web services to acquire dynamically accurate and reliable HMSR information by a semantic processing and visualization approach. A security-enhanced mechanism was applied to protect the medical information. A multi-agent crawler was implemented to develop a content-based database of HMSR information. A new semantic-based PageRank score with related mathematical formulas were also defined and implemented. As the results, semantic web service descriptions were presented in OWL, WSDL and OWL-S formats. Operational scenarios with related web-based interfaces for personal computers and mobile devices were presented and analyzed. Functional comparison between our knowledge-based search engine, a conventional search engine and a semantic search engine showed the originality and the robustness of our knowledge-based personalized search engine. In fact, our knowledge-based personalized search engine allows different users such as orthopedic patient and experts or healthcare system managers or medical students to access remotely into useful, accurate, reliable and good-quality HMSR information for their learning and medical purposes. PMID:23149160

  4. Knowledge-based personalized search engine for the Web-based Human Musculoskeletal System Resources (HMSR) in biomechanics.

    PubMed

    Dao, Tien Tuan; Hoang, Tuan Nha; Ta, Xuan Hien; Tho, Marie Christine Ho Ba

    2013-02-01

    Human musculoskeletal system resources of the human body are valuable for the learning and medical purposes. Internet-based information from conventional search engines such as Google or Yahoo cannot response to the need of useful, accurate, reliable and good-quality human musculoskeletal resources related to medical processes, pathological knowledge and practical expertise. In this present work, an advanced knowledge-based personalized search engine was developed. Our search engine was based on a client-server multi-layer multi-agent architecture and the principle of semantic web services to acquire dynamically accurate and reliable HMSR information by a semantic processing and visualization approach. A security-enhanced mechanism was applied to protect the medical information. A multi-agent crawler was implemented to develop a content-based database of HMSR information. A new semantic-based PageRank score with related mathematical formulas were also defined and implemented. As the results, semantic web service descriptions were presented in OWL, WSDL and OWL-S formats. Operational scenarios with related web-based interfaces for personal computers and mobile devices were presented and analyzed. Functional comparison between our knowledge-based search engine, a conventional search engine and a semantic search engine showed the originality and the robustness of our knowledge-based personalized search engine. In fact, our knowledge-based personalized search engine allows different users such as orthopedic patient and experts or healthcare system managers or medical students to access remotely into useful, accurate, reliable and good-quality HMSR information for their learning and medical purposes.

  5. VectorBase: an updated bioinformatics resource for invertebrate vectors and other organisms related with human diseases.

    PubMed

    Giraldo-Calderón, Gloria I; Emrich, Scott J; MacCallum, Robert M; Maslen, Gareth; Dialynas, Emmanuel; Topalis, Pantelis; Ho, Nicholas; Gesing, Sandra; Madey, Gregory; Collins, Frank H; Lawson, Daniel

    2015-01-01

    VectorBase is a National Institute of Allergy and Infectious Diseases supported Bioinformatics Resource Center (BRC) for invertebrate vectors of human pathogens. Now in its 11th year, VectorBase currently hosts the genomes of 35 organisms including a number of non-vectors for comparative analysis. Hosted data range from genome assemblies with annotated gene features, transcript and protein expression data to population genetics including variation and insecticide-resistance phenotypes. Here we describe improvements to our resource and the set of tools available for interrogating and accessing BRC data including the integration of Web Apollo to facilitate community annotation and providing Galaxy to support user-based workflows. VectorBase also actively supports our community through hands-on workshops and online tutorials. All information and data are freely available from our website at https://www.vectorbase.org/.

  6. VectorBase: an updated bioinformatics resource for invertebrate vectors and other organisms related with human diseases

    PubMed Central

    Giraldo-Calderón, Gloria I.; Emrich, Scott J.; MacCallum, Robert M.; Maslen, Gareth; Dialynas, Emmanuel; Topalis, Pantelis; Ho, Nicholas; Gesing, Sandra; Madey, Gregory; Collins, Frank H.; Lawson, Daniel

    2015-01-01

    VectorBase is a National Institute of Allergy and Infectious Diseases supported Bioinformatics Resource Center (BRC) for invertebrate vectors of human pathogens. Now in its 11th year, VectorBase currently hosts the genomes of 35 organisms including a number of non-vectors for comparative analysis. Hosted data range from genome assemblies with annotated gene features, transcript and protein expression data to population genetics including variation and insecticide-resistance phenotypes. Here we describe improvements to our resource and the set of tools available for interrogating and accessing BRC data including the integration of Web Apollo to facilitate community annotation and providing Galaxy to support user-based workflows. VectorBase also actively supports our community through hands-on workshops and online tutorials. All information and data are freely available from our website at https://www.vectorbase.org/. PMID:25510499

  7. Differences in neighborhood accessibility to health-related resources: a nationwide comparison between deprived and affluent neighborhoods in Sweden.

    PubMed

    Kawakami, Naomi; Winkleby, Marilyn; Skog, Lars; Szulkin, Robert; Sundquist, Kristina

    2011-01-01

    This nationwide Swedish study used geocoded data from all businesses in Sweden to examine the distribution of 12 main categories of goods, services, and resources in 6986 neighborhoods, categorized as low, moderate, and high neighborhood deprivation. The main findings were that high- and moderate-deprivation neighborhoods had a significantly higher prevalence of all types of goods, services, and resources than low-deprivation neighborhoods. These findings do not support previous research that hypothesizes that poorer health among people in deprived neighborhoods is explained by a lack of health-promoting resources, although a higher presence of health-damaging resources may play a role.

  8. Trust-Based Access Control Model from Sociological Approach in Dynamic Online Social Network Environment

    PubMed Central

    Kim, Seungjoo

    2014-01-01

    There has been an explosive increase in the population of the OSN (online social network) in recent years. The OSN provides users with many opportunities to communicate among friends and family. Further, it facilitates developing new relationships with previously unknown people having similar beliefs or interests. However, the OSN can expose users to adverse effects such as privacy breaches, the disclosing of uncontrolled material, and the disseminating of false information. Traditional access control models such as MAC, DAC, and RBAC are applied to the OSN to address these problems. However, these models are not suitable for the dynamic OSN environment because user behavior in the OSN is unpredictable and static access control imposes a burden on the users to change the access control rules individually. We propose a dynamic trust-based access control for the OSN to address the problems of the traditional static access control. Moreover, we provide novel criteria to evaluate trust factors such as sociological approach and evaluate a method to calculate the dynamic trust values. The proposed method can monitor negative behavior and modify access permission levels dynamically to prevent the indiscriminate disclosure of information. PMID:25374943

  9. Trust-based access control model from sociological approach in dynamic online social network environment.

    PubMed

    Baek, Seungsoo; Kim, Seungjoo

    2014-01-01

    There has been an explosive increase in the population of the OSN (online social network) in recent years. The OSN provides users with many opportunities to communicate among friends and family. Further, it facilitates developing new relationships with previously unknown people having similar beliefs or interests. However, the OSN can expose users to adverse effects such as privacy breaches, the disclosing of uncontrolled material, and the disseminating of false information. Traditional access control models such as MAC, DAC, and RBAC are applied to the OSN to address these problems. However, these models are not suitable for the dynamic OSN environment because user behavior in the OSN is unpredictable and static access control imposes a burden on the users to change the access control rules individually. We propose a dynamic trust-based access control for the OSN to address the problems of the traditional static access control. Moreover, we provide novel criteria to evaluate trust factors such as sociological approach and evaluate a method to calculate the dynamic trust values. The proposed method can monitor negative behavior and modify access permission levels dynamically to prevent the indiscriminate disclosure of information.

  10. CoryneBase: Corynebacterium genomic resources and analysis tools at your fingertips.

    PubMed

    Heydari, Hamed; Siow, Cheuk Chuen; Tan, Mui Fern; Jakubovics, Nick S; Wee, Wei Yee; Mutha, Naresh V R; Wong, Guat Jah; Ang, Mia Yang; Yazdi, Amir Hessam; Choo, Siew Woh

    2014-01-01

    Corynebacteria are used for a wide variety of industrial purposes but some species are associated with human diseases. With increasing number of corynebacterial genomes having been sequenced, comparative analysis of these strains may provide better understanding of their biology, phylogeny, virulence and taxonomy that may lead to the discoveries of beneficial industrial strains or contribute to better management of diseases. To facilitate the ongoing research of corynebacteria, a specialized central repository and analysis platform for the corynebacterial research community is needed to host the fast-growing amount of genomic data and facilitate the analysis of these data. Here we present CoryneBase, a genomic database for Corynebacterium with diverse functionality for the analysis of genomes aimed to provide: (1) annotated genome sequences of Corynebacterium where 165,918 coding sequences and 4,180 RNAs can be found in 27 species; (2) access to comprehensive Corynebacterium data through the use of advanced web technologies for interactive web interfaces; and (3) advanced bioinformatic analysis tools consisting of standard BLAST for homology search, VFDB BLAST for sequence homology search against the Virulence Factor Database (VFDB), Pairwise Genome Comparison (PGC) tool for comparative genomic analysis, and a newly designed Pathogenomics Profiling Tool (PathoProT) for comparative pathogenomic analysis. CoryneBase offers the access of a range of Corynebacterium genomic resources as well as analysis tools for comparative genomics and pathogenomics. It is publicly available at http://corynebacterium.um.edu.my/.

  11. Global Location-Based Access to Web Applications Using Atom-Based Automatic Update

    NASA Astrophysics Data System (ADS)

    Singh, Kulwinder; Park, Dong-Won

    We propose an architecture which enables people to enquire about information available in directory services by voice using regular phones. We implement a Virtual User Agent (VUA) which mediates between the human user and a business directory service. The system enables the user to search for the nearest clinic, gas station by price, motel by price, food / coffee, banks/ATM etc. and fix an appointment, or automatically establish a call between the user and the business party if the user prefers. The user also has an option to receive appointment confirmation by phone, SMS, or e-mail. The VUA is accessible by a toll free DID (Direct Inward Dialing) number using a phone by anyone, anywhere, anytime. We use the Euclidean formula for distance measurement. Since, shorter geodesic distances (on the Earth’s surface) correspond to shorter Euclidean distances (measured by a straight line through the Earth). Our proposed architecture uses Atom XML syndication format protocol for data integration, VoiceXML for creating the voice user interface (VUI) and CCXML for controlling the call components. We also provide an efficient algorithm for parsing Atom feeds which provide data to the system. Moreover, we describe a cost-effective way for providing global access to the VUA based on Asterisk (an open source IP-PBX). We also provide some information on how our system can be integrated with GPS for locating the user coordinates and therefore efficiently and spontaneously enhancing the system response. Additionally, the system has a mechanism for validating the phone numbers in its database, and it updates the number and other information such as daily price of gas, motel etc. automatically using an Atom-based feed. Currently, the commercial directory services (Example 411) do not have facilities to update the listing in the database automatically, so that why callers most of the times get out-of-date phone numbers or other information. Our system can be integrated very easily

  12. Access to artemisinin-based anti-malarial treatment and its related factors in rural Tanzania

    PubMed Central

    2013-01-01

    Background Artemisinin-based combination treatment (ACT) has been widely adopted as one of the main malaria control strategies. However, its promise to save thousands of lives in sub-Saharan Africa depends on how effective the use of ACT is within the routine health system. The INESS platform evaluated effective coverage of ACT in several African countries. Timely access within 24 hours to an authorized ACT outlet is one of the determinants of effective coverage and was assessed for artemether-lumefantrine (Alu), in two district health systems in rural Tanzania. Methods From October 2009 to June 2011we conducted continuous rolling household surveys in the Kilombero-Ulanga and the Rufiji Health and Demographic Surveillance Sites (HDSS). Surveys were linked to the routine HDSS update rounds. Members of randomly pre-selected households that had experienced a fever episode in the previous two weeks were eligible for a structured interview. Data on individual treatment seeking, access to treatment, timing, source of treatment and household costs per episode were collected. Data are presented on timely access from a total of 2,112 interviews in relation to demographics, seasonality, and socio economic status. Results In Kilombero-Ulanga, 41.8% (CI: 36.6–45.1) and in Rufiji 36.8% (33.7–40.1) of fever cases had access to an authorized ACT provider within 24 hours of fever onset. In neither of the HDSS site was age, sex, socio-economic status or seasonality of malaria found to be significantly correlated with timely access. Conclusion Timely access to authorized ACT providers is below 50% despite interventions intended to improve access such as social marketing and accreditation of private dispensing outlets. To improve prompt diagnosis and treatment, access remains a major bottle neck and new more innovative interventions are needed to raise effective coverage of malaria treatment in Tanzania. PMID:23651521

  13. Removing financial barriers to access reproductive, maternal and newborn health services: the challenges and policy implications for human resources for health

    PubMed Central

    2013-01-01

    Background The last decade has seen widespread retreat from user fees with the intention to reduce financial constraints to users in accessing health care and in particular improving access to reproductive, maternal and newborn health services. This has had important benefits in reducing financial barriers to access in a number of settings. If the policies work as intended, service utilization rates increase. However this increases workloads for health staff and at the same time, the loss of user fee revenues can imply that health workers lose bonuses or allowances, or that it becomes more difficult to ensure uninterrupted supplies of health care inputs. This research aimed to assess how policies reducing demand-side barriers to access to health care have affected service delivery with a particular focus on human resources for health. Methods We undertook case studies in five countries (Ghana, Nepal, Sierra Leone, Zambia and Zimbabwe). In each we reviewed financing and HRH policies, considered the impact financing policy change had made on health service utilization rates, analysed the distribution of health staff and their actual and potential workloads, and compared remuneration terms in the public sectors. Results We question a number of common assumptions about the financing and human resource inter-relationships. The impact of fee removal on utilization levels is mostly not sustained or supported by all the evidence. Shortages of human resources for health at the national level are not universal; maldistribution within countries is the greater problem. Low salaries are not universal; most of the countries pay health workers well by national benchmarks. Conclusions The interconnectedness between user fee policy and HRH situations proves difficult to assess. Many policies have been changing over the relevant period, some clearly and others possibly in response to problems identified associated with financing policy change. Other relevant variables have also

  14. Comprehensive evaluation of eco-tourism resources in Hangzhou based on GIS

    NASA Astrophysics Data System (ADS)

    Cheng, Qian; Wu, Xiuju

    2009-09-01

    By using analytical hierarchy process (AHP) and Fuzzy method, representative evaluation factors in the aspects of tourism resources quantity, environmental quantity, tourism conditions, and tourism functions were chosen to build up a comprehensive quantitative evaluation model to evaluate the eco-tourism resources of Hangzhou region based on GIS. The results showed that in Hangzhou region, the natural eco-tourism re-sources were superior to the humanity resources. In the spatial distribution, eco-tourism resources in Hangzhou present circle shape, and it is not balance. Based on the above analyses, it gives the initial development direction of resource sub area suiting to eco-tourism resources in Hangzhou.

  15. The Scalable Brain Atlas: Instant Web-Based Access to Public Brain Atlases and Related Content.

    PubMed

    Bakker, Rembrandt; Tiesinga, Paul; Kötter, Rolf

    2015-07-01

    The Scalable Brain Atlas (SBA) is a collection of web services that provide unified access to a large collection of brain atlas templates for different species. Its main component is an atlas viewer that displays brain atlas data as a stack of slices in which stereotaxic coordinates and brain regions can be selected. These are subsequently used to launch web queries to resources that require coordinates or region names as input. It supports plugins which run inside the viewer and respond when a new slice, coordinate or region is selected. It contains 20 atlas templates in six species, and plugins to compute coordinate transformations, display anatomical connectivity and fiducial points, and retrieve properties, descriptions, definitions and 3d reconstructions of brain regions. The ambition of SBA is to provide a unified representation of all publicly available brain atlases directly in the web browser, while remaining a responsive and light weight resource that specializes in atlas comparisons, searches, coordinate transformations and interactive displays.

  16. Growth performance of weanling Wistar rats fed on accessions of cooked Colocasia esculenta-based diets.

    PubMed

    Lewu, Muinat N; Yakubu, Toyin M; Adebola, Patrick O; Afolayan, Anthony J

    2011-09-01

    The growth performance of weanling albino rats (Rattus norvegicus) maintained on different accessions (offspring of a variety that was planted/collected at a specific location and time but differing in certain morphologic characteristics) of cooked Colocasia esculenta (cocoyam)-based diets (UFCe1-UFCe7) for 28 days was investigated. Proximate analysis of the formulated diets revealed that UFCe3, UFCe4, UFCe5, UFCe6, and UFCe7 had significantly (P<.05) higher moisture contents than the corn starch-based diet (control). All the accession-based diets of C. esculenta had higher ash contents. Similarly, all the accessions of the C. esculenta-based diet had lower crude lipid content, whereas UFCe3-UFCe7 had significantly lower protein content. Although the crude fiber content was significantly higher in UFCe2, UFCe4, and UFCe5, only UFCe3 had significantly higher carbohydrate content among all the accessions of C. esculenta-based diets. UFCe1, UFCe2, UFCe4, UFCe5, and UFCe6 increased the average weekly water intake, feed consumption, total body weight, liver-body weight ratio, and kidney-body weight ratio of the animals; UFCe3 and UFCe7 decreased these measures. Overall, UFCe1, UFCe2, UFCe4, UFCe5, and UFCe6 are recommended as diets with promise to enhance growth performance in the animals.

  17. Growth performance of weanling Wistar rats fed on accessions of cooked Colocasia esculenta-based diets.

    PubMed

    Lewu, Muinat N; Yakubu, Toyin M; Adebola, Patrick O; Afolayan, Anthony J

    2011-09-01

    The growth performance of weanling albino rats (Rattus norvegicus) maintained on different accessions (offspring of a variety that was planted/collected at a specific location and time but differing in certain morphologic characteristics) of cooked Colocasia esculenta (cocoyam)-based diets (UFCe1-UFCe7) for 28 days was investigated. Proximate analysis of the formulated diets revealed that UFCe3, UFCe4, UFCe5, UFCe6, and UFCe7 had significantly (P<.05) higher moisture contents than the corn starch-based diet (control). All the accession-based diets of C. esculenta had higher ash contents. Similarly, all the accessions of the C. esculenta-based diet had lower crude lipid content, whereas UFCe3-UFCe7 had significantly lower protein content. Although the crude fiber content was significantly higher in UFCe2, UFCe4, and UFCe5, only UFCe3 had significantly higher carbohydrate content among all the accessions of C. esculenta-based diets. UFCe1, UFCe2, UFCe4, UFCe5, and UFCe6 increased the average weekly water intake, feed consumption, total body weight, liver-body weight ratio, and kidney-body weight ratio of the animals; UFCe3 and UFCe7 decreased these measures. Overall, UFCe1, UFCe2, UFCe4, UFCe5, and UFCe6 are recommended as diets with promise to enhance growth performance in the animals. PMID:21554124

  18. Surfer: An Extensible Pull-Based Framework for Resource Selection and Ranking

    NASA Technical Reports Server (NTRS)

    Zolano, Paul Z.

    2004-01-01

    Grid computing aims to connect large numbers of geographically and organizationally distributed resources to increase computational power; resource utilization, and resource accessibility. In order to effectively utilize grids, users need to be connected to the best available resources at any given time. As grids are in constant flux, users cannot be expected to keep up with the configuration and status of the grid, thus they must be provided with automatic resource brokering for selecting and ranking resources meeting constraints and preferences they specify. This paper presents a new OGSI-compliant resource selection and ranking framework called Surfer that has been implemented as part of NASA's Information Power Grid (IPG) project. Surfer is highly extensible and may be integrated into any grid environment by adding information providers knowledgeable about that environment.

  19. Cloud-based Web Services for Near-Real-Time Web access to NPP Satellite Imagery and other Data

    NASA Astrophysics Data System (ADS)

    Evans, J. D.; Valente, E. G.

    2010-12-01

    We are building a scalable, cloud computing-based infrastructure for Web access to near-real-time data products synthesized from the U.S. National Polar-Orbiting Environmental Satellite System (NPOESS) Preparatory Project (NPP) and other geospatial and meteorological data. Given recent and ongoing changes in the the NPP and NPOESS programs (now Joint Polar Satellite System), the need for timely delivery of NPP data is urgent. We propose an alternative to a traditional, centralized ground segment, using distributed Direct Broadcast facilities linked to industry-standard Web services by a streamlined processing chain running in a scalable cloud computing environment. Our processing chain, currently implemented on Amazon.com's Elastic Compute Cloud (EC2), retrieves raw data from NASA's Moderate Resolution Imaging Spectroradiometer (MODIS) and synthesizes data products such as Sea-Surface Temperature, Vegetation Indices, etc. The cloud computing approach lets us grow and shrink computing resources to meet large and rapid fluctuations (twice daily) in both end-user demand and data availability from polar-orbiting sensors. Early prototypes have delivered various data products to end-users with latencies between 6 and 32 minutes. We have begun to replicate machine instances in the cloud, so as to reduce latency and maintain near-real time data access regardless of increased data input rates or user demand -- all at quite moderate monthly costs. Our service-based approach (in which users invoke software processes on a Web-accessible server) facilitates access into datasets of arbitrary size and resolution, and allows users to request and receive tailored and composite (e.g., false-color multiband) products on demand. To facilitate broad impact and adoption of our technology, we have emphasized open, industry-standard software interfaces and open source software. Through our work, we envision the widespread establishment of similar, derived, or interoperable systems for

  20. Artifact-based reflective interviews for identifying pragmatic epistemological resources

    NASA Astrophysics Data System (ADS)

    Shubert, Christopher Walden

    Physics Education Research studies the science of teaching and learning physics. The process of student learning is complex, and the factors that affect it are numerous. Describing students' understanding of physics knowledge and reasoning is the basis for much productive research; however, such research fails to account for certain types of student learning difficulties. In this dissertation, I explore one source of student difficulty: personal epistemology, students' ideas about knowledge and knowing. Epistemology traditionally answers three questions: What is knowledge? How is knowledge created? And, how do we know what we know? An individual's responses to these questions can affect learning in terms of how they approach tasks involving the construction and application of knowledge. The key issue addressed in this dissertation is the effect of methodological choices on the validity and reliability of claims concerning personal epistemology. My central concern is contextual validity, how what is said about one's epistemology is not identical to how one behaves epistemologically. In response to these issues, I present here a new methodology for research on student epistemology: video artifact-based reflective interview protocols. These protocols begin with video taping students in their natural classroom activities, and then asking the participants epistemological questions immediately after watching selected scenes from their activity, contextually anchoring them in their actual learning experience. The data from these interviews is viewed in the framework of Epistemological Resource Theory, a framework of small bits of knowledge whose coordination in a given context is used to describe personal epistemology. I claim that the privileged data from these interviews allows detailed epistemological resources to be identified, and that these resources can provide greater insight into how student epistemologies are applied in learning activities. This research

  1. Resource management scheme based on ubiquitous data analysis.

    PubMed

    Lee, Heung Ki; Jung, Jaehee; Yi, Gangman

    2014-01-01

    Resource management of the main memory and process handler is critical to enhancing the system performance of a web server. Owing to the transaction delay time that affects incoming requests from web clients, web server systems utilize several web processes to anticipate future requests. This procedure is able to decrease the web generation time because there are enough processes to handle the incoming requests from web browsers. However, inefficient process management results in low service quality for the web server system. Proper pregenerated process mechanisms are required for dealing with the clients' requests. Unfortunately, it is difficult to predict how many requests a web server system is going to receive. If a web server system builds too many web processes, it wastes a considerable amount of memory space, and thus performance is reduced. We propose an adaptive web process manager scheme based on the analysis of web log mining. In the proposed scheme, the number of web processes is controlled through prediction of incoming requests, and accordingly, the web process management scheme consumes the least possible web transaction resources. In experiments, real web trace data were used to prove the improved performance of the proposed scheme. PMID:25197692

  2. Developing a web-based information resource for palliative care: an action-research inspired approach

    PubMed Central

    Street, Annette F; Swift, Kathleen; Annells, Merilyn; Woodruff, Roger; Gliddon, Terry; Oakley, Anne; Ottman, Goetz

    2007-01-01

    Background General Practitioners and community nurses rely on easily accessible, evidence-based online information to guide practice. To date, the methods that underpin the scoping of user-identified online information needs in palliative care have remained under-explored. This paper describes the benefits and challenges of a collaborative approach involving users and experts that informed the first stage of the development of a palliative care website [1]. Method The action research-inspired methodology included a panel assessment of an existing palliative care website based in Victoria, Australia; a pre-development survey (n = 197) scoping potential audiences and palliative care information needs; working parties conducting a needs analysis about necessary information content for a redeveloped website targeting health professionals and caregivers/patients; an iterative evaluation process involving users and experts; as well as a final evaluation survey (n = 166). Results Involving users in the identification of content and links for a palliative care website is time-consuming and requires initial resources, strong networking skills and commitment. However, user participation provided crucial information that led to the widened the scope of the website audience and guided the development and testing of the website. The needs analysis underpinning the project suggests that palliative care peak bodies need to address three distinct audiences (clinicians, allied health professionals as well as patients and their caregivers). Conclusion Web developers should pay close attention to the content, language, and accessibility needs of these groups. Given the substantial cost associated with the maintenance of authoritative health information sites, the paper proposes a more collaborative development in which users can be engaged in the definition of content to ensure relevance and responsiveness, and to eliminate unnecessary detail. Access to volunteer networks forms an

  3. Resource based view of the firm: measures of reputation among health service-sector businesses.

    PubMed

    Smith, Alan D

    2008-01-01

    Application of the strategic leverage of Resource Based View of the Firm (RBV) directly advocates that a company's competitive advantage is derived from its ability to assemble and exploit an appropriate combination of resources (both tangible and intangible assets). The three companies that were selected were Pittsburgh-based companies that were within relatively easy access, representing healthcare service-related industries, and can be reviewed for the principles of the RBV. The particular firms represented a variety of establishments and included Baptist Homes (a long-term care facility), University of Pittsburgh Medical Center (UPMC)(a provider of hospital and other health services), and GlaxoSmithKline, Consumer Healthcare, North America (GSK-CHNA)(a global provider of healthcare products and services). Through the case studies, it was found that not all intangible assets are strategic, and by extension, not all measures of reputation are strategic either. For an intangible asset to be considered strategic, in this case reputation, it must be valuable, rare, imperfectly imitable, and non-substitutable.

  4. AgBase: a unified resource for functional analysis in agriculture.

    PubMed

    McCarthy, Fiona M; Bridges, Susan M; Wang, Nan; Magee, G Bryce; Williams, W Paul; Luthe, Dawn S; Burgess, Shane C

    2007-01-01

    Analysis of functional genomics (transcriptomics and proteomics) datasets is hindered in agricultural species because agricultural genome sequences have relatively poor structural and functional annotation. To facilitate systems biology in these species we have established the curated, web-accessible, public resource 'AgBase' (www.agbase.msstate.edu). We have improved the structural annotation of agriculturally important genomes by experimentally confirming the in vivo expression of electronically predicted proteins and by proteogenomic mapping. Proteogenomic data are available from the AgBase proteogenomics link. We contribute Gene Ontology (GO) annotations and we provide a two tier system of GO annotations for users. The 'GO Consortium' gene association file contains the most rigorous GO annotations based solely on experimental data. The 'Community' gene association file contains GO annotations based on expert community knowledge (annotations based directly from author statements and submitted annotations from the community) and annotations for predicted proteins. We have developed two tools for proteomics analysis and these are freely available on request. A suite of tools for analyzing functional genomics datasets using the GO is available online at the AgBase site. We encourage and publicly acknowledge GO annotations from researchers and provide an online mechanism for agricultural researchers to submit requests for GO annotations. PMID:17135208

  5. Making Web-Based Tables Accessible for Users of Screen Readers.

    ERIC Educational Resources Information Center

    Amtmann, Dagmar; Johnson, Kurt; Cook, Debbie

    2002-01-01

    Summarizes results from a study of problems blind people using screen readers and Web browsers experienced when reading tables on the World Wide Web. Explains accessibility factors including complexity of layout, use of HTML programming, features of screen-reading software, and user variables; and makes recommendations for Web-based tables,…

  6. Computer-Based Systems for Increasing Information Access to School Media Center Materials. Final Report.

    ERIC Educational Resources Information Center

    Hines, Theodore C.; And Others

    The project presented here explored the possibility of using computer-based systems to increase information access to non-text children's materials at the pre-school through elementary (6th grade) school levels. This final report includes an indicative summary as well as ten separate papers that describe a range of applications of proven computer…

  7. The TriLab, a Novel ICT Based Triple Access Mode Laboratory Education Model

    ERIC Educational Resources Information Center

    Abdulwahed, Mahmoud; Nagy, Zoltan K.

    2011-01-01

    This paper introduces a novel model of laboratory education, namely the TriLab. The model is based on recent advances in ICT and implements a three access modes to the laboratory experience (virtual, hands-on and remote) in one software package. A review of the three modes is provided with highlights of advantages and disadvantages of each mode.…

  8. Open access of evidence-based publications: the case of the orthopedic and musculoskeletal literature.

    PubMed

    Yammine, Kaissar

    2015-11-01

    The open access model, where researchers can publish their work and make it freely available to the whole medical community, is gaining ground over the traditional type of publication. However, fees are to be paid by either the authors or their institutions. The purpose of this paper is to assess the proportion and type of open access evidence-based articles in the form of systematic reviews and meta-analyses in the field of musculoskeletal disorders and orthopedic surgery. PubMed database was searched and the results showed a maximal number of hits for low back pain and total hip arthroplasty. We demonstrated that despite a 10-fold increase in the number of evidence-based publications in the past 10 years, the rate of free systematic reviews in the general biomedical literature did not change for the last two decades. In addition, the average percentage of free open access systematic reviews and meta-analyses for the commonest painful musculoskeletal conditions and orthopedic procedures was 20% and 18%, respectively. Those results were significantly lower than those of the systematic reviews and meta-analyses in the remaining biomedical research. Such findings could indicate a divergence between the efforts engaged at promoting evidence-based principles and those at disseminating evidence-based findings in the field of musculoskeletal disease and trauma. The high processing fee is thought to be a major limitation when considering open access model for publication.

  9. Evaluating the Accessibility of Web-Based Instruction for Students with Disabilities.

    ERIC Educational Resources Information Center

    Hinn, D. Michelle

    This paper presents the methods and results of a year-long evaluation study, conducted for the purpose of determining disability accessibility barriers and potential solutions for those barriers found in four World Wide Web-based learning environments. The primary questions used to frame the evaluation study were: (1) Are there any features of the…

  10. Dispersion-flattened-fiber based optical thresholder for multiple-access-interference suppression in OCDMA system.

    PubMed

    Wang, Xu; Hamanaka, Taro; Wada, Naoya; Kitayama, Ken-Ichi

    2005-07-11

    An optical thresholding technique based on super-continuum generation in dispersion flattened fiber is proposed and experimentally demonstrated to enable data-rate detection in optical code division multiple access networks. The proposed scheme exhibits an excellent discrimination between a desired signal and interference signals with features of pulse reshaping, low insertion loss, polarization independency as well as reasonable operation power.

  11. Perceptions of Personal Well-Being among Youth Accessing Residential or Intensive Home-Based Treatment

    ERIC Educational Resources Information Center

    Preyde, Michele; Watkins, Hanna; Ashbourne, Graham; Lazure, Kelly; Carter, Jeff; Penney, Randy; White, Sara; Frensch, Karen; Cameron, Gary

    2013-01-01

    The outcomes of youth accessing residential treatment or intensive home-based treatment are varied. Understanding youth's perceptions of their well-being may inform service. The purpose of this report was to explore perceptions of youth's mental health, life satisfaction, and outlook for the future. Youth reported ongoing struggles with mental…

  12. Flexible OFDM-based access systems with intrinsic function of chromatic dispersion compensation

    NASA Astrophysics Data System (ADS)

    Konishi, Tsuyoshi; Murakawa, Takuya; Nagashima, Tomotaka; Hasegawa, Makoto; Shimizu, Satoshi; Hattori, Kuninori; Okuno, Masayuki; Mino, Shinji; Himeno, Akira; Uenohara, Hiroyuki; Wada, Naoya; Cincotti, Gabriella

    2015-12-01

    Cost-effective and tunable chromatic dispersion compensation in a fiber link are still an open issue in metro and access networks to cope with increasing costs and power consumption. Intrinsic chromatic dispersion compensation functionality of optical fractional orthogonal frequency division multiplexing is discussed and experimentally demonstrated using dispersion-tunable transmitter and receiver based on wavelength selective switching devices.

  13. The Earth Exploration Toolbook: A Resource That Facilitates Access to and Analysis of Earth Science Data by Teachers and Students

    NASA Astrophysics Data System (ADS)

    Ledley, T. S.; Dahlman, L.; McAuliffe, C.; Haddad, N.

    2005-12-01

    Earth science data and data access and analysis tools have, for the most part, been collected and developed for and by scientists. The Earth Exploration Toolbook (EET, http://serc.carleton.edu/eet) has been developed in order to facilitate the broadest use of those data and tools . The EET makes Earth science datasets and analysis tools more accessible and usable by educators and students through the development of chapters which provide step-by-step instructions on how to access and analyze specific data to understand an Earth science concept within an interesting context. We have provided both face-to-face and online-telecon workshops featuring specific EET chapters to teachers to help them learn how to use and teach with data. During this presentation we will discuss the content of the EET, the components of the EET chapters that help teachers and students access and use data, and how effective teachers feel specific chapters are at making the data accessible and meaningful as reflected the outcomes of our DLESE Annual Meeting workshops and telecon-online workshops.

  14. Utilization of geothermal resources at United States Air Force bases

    SciTech Connect

    Grogger, P.K.

    1980-09-01

    The Air Force installations on the continental United States as well as Alaska and Hawaii, were evaluated as to the possibility of utilizing geothermal energy to develop electricity, produce process steam, or heat and/or cool buildings. Twenty-five bases have suspected geothermal resources available. Because of either need or available technology seven installations were rated priority I, six were rated priority II and priority III and IV totaled ten. Geological and geophysical data indicated further investigation of the priority I installations, Saylor Creek Range, Idaho, Ellsworth AFB, South Dakota, Charleston AFB, South Carolina, Kirkland AFB, New Mexico, Vandenberg AFB, California, Luke AFB, Arizona, and Williams AFB, Arizona, should be accomplished as soon as possible. The use of geothermal energy will decrease the need for fossil fuels by the USAF and during times of short supply allow such fuels to be used for the Air Force's primary mission, military defense.

  15. User-based Resource Design in Earth Science Education

    NASA Astrophysics Data System (ADS)

    Luby, M.; Haber, J.; Wittenberg, K.

    2001-12-01

    Reform in the classroom, and certainly in academic publishing, is greatly influenced not only by educational research, but also by direct surveys of students and instructors. This presentation looks at changes to Columbia Earthscape, www.earthscape.org, based on an ongoing series of evaluation and testing measures. Two years ago, the Earthscape project was introduced as a central online resource. It aimed to select and make available authoritative materials from all the disciplines that constitute Earth-system science. Its design harnessed the dynamics of the Web and the interrelatedness of research, education, and public policy. In response to substantial class tests, involving five universities in the United States and abroad, three focus groups of geoscience faculty and librarians, user feedback, internal editorial-board review, and extensive consultation with colleagues in commercial and nonprofit educational publishing, Earthscape is implementing broad changes in design and content. These include arranging the site into sections that correspond to user profiles (scientist, policy-maker, teacher, and student), providing easier search or browsing (by research area, policy content, or lesson concept), and streamlining the presentation of links among our resources. These changes are implemented through more advanced searching capabilities, greater specificity of content metatags, and an overall increase in content from journals, books, and original material. The metatags now include all core geoscience disciplines or a range of pertinent issues (such as climate change, geologic hazards, and pollution). Reflecting the evaluation by librarians, Earthscape's revised interface will permit users to begin with a primary area of interest based on who they are, their "profile." They can then either browse the site's entire holdings in that area, perform searches within each area, or follow the extensive hyperlinks to explore connections to other areas and user needs

  16. Robins Air Force Base integrated resource assessment. Volume 3, Resource assessment

    SciTech Connect

    Sullivan, G.P.; Keller, J.M.; Stucky, D.J.; Wahlstrom, R.R.; Larson, L.L.

    1993-10-01

    The US Air Force Materiel Command (AFMC) has tasked the US Department of Energy (DOE) Federal Energy Management Program (FEMP), supported by the Pacific Northwest Laboratory (PNL), to identify, evaluate, and assist in acquiring all cost-effective energy projects at Robins Air Force Base (AFB). This is part of a model program that PNL is designing to support energy-use decisions in the federal sector. This report provides the results of the fossil fuel and electric energy resource opportunity (ERO) assessments performed by PNL at the AFMC Robins AFB facility located approximately 15 miles south of Macon, Georgia. It is a companion report to Volume 1, Executive Summary, and Volume 2, Baseline Detail. The results of the analyses of EROs are presented in 13 common energy end-use categories (e.g., boilers and furnaces, service hot water, and building lighting). A narrative-description of each ERO is provided, including information on the installed cost, energy and dollar savings; impacts on operation and maintenance (O&M); and, when applicable, a discussion of energy supply and demand, energy security, and environmental issues. A description of the evaluation methodologies and technical and cost assumptions is also provided for each ERO. Summary tables present the cost-effectiveness of energy end-use equipment before and after the implementation of each ERO and present the results of the life-cycle cost (LCC) analysis indicating the net present value (NPV) and savings to investment ratio (SIR) of each ERO.

  17. Patrick Air Force Base integrated resource assessment. Volume 3, Resource assessment

    SciTech Connect

    Sandusky, W.F.; Parker, S.A.; King, D.A.; Wahlstrom, R.R.; Elliott, D.B.; Shankle, S.A.

    1993-12-01

    The US Air Force has tasked the Pacific Northwest Laboratory (PNL) in support of the US Department of Energy Federal Energy Management Program to identify, evaluate, and assist in acquiring all cost effective energy projects at Patrick Air Force Base (AFB). This is part of a model program that PNL is designing to support energy-use decisions in the federal sector. This report provides the results of the fossil fuel and electric energy resource opportunity (ERO) assessments performed by PNL at Patrick AFB which is located south of Cocoa Beach, Florida. It is a companion report to Volume 1, Executive Summary, and Volume.2, Baseline Detail. The results of the analyses of EROs are presented in 11 common energy end-use categories. A narrative description of each ERO is provided, including information on the installed cost, energy and dollar savings, impacts on operations and maintenance, and, when applicable, a discussion of energy supply and demand, energy security, and environmental issues. A description of the evaluation methodologies and technical and cost assumptions is also provided for each ERO. Summary tables present the cost-effectiveness of energy end-use equipment before and after the implementation of each ERO and present the results of the life-cycle cost analysis indicating the net present value and value index of each ERO.

  18. Instructional Media Initiatives Focusing on the Educational Resources Center at Thirteen/WNET, New York, New York: Resources for Teachers--Accessing Technology-Rich Lesson Plans

    ERIC Educational Resources Information Center

    Donlevy, Jim

    2006-01-01

    This article discusses one excellent source of lesson plan resources for teachers, which is Public Broadcasting Station Thirteen/WNET (www.thirteen.org/edonline). This article describes the lesson plans available in multimedia formats and discuss benefits to teachers. Here, the author points out that the high quality lessons available online have…

  19. Searching for adaptive traits in genetic resources - phenology based approach

    NASA Astrophysics Data System (ADS)

    Bari, Abdallah

    2015-04-01

    Searching for adaptive traits in genetic resources - phenology based approach Abdallah Bari, Kenneth Street, Eddy De Pauw, Jalal Eddin Omari, and Chandra M. Biradar International Center for Agricultural Research in the Dry Areas, Rabat Institutes, Rabat, Morocco Phenology is an important plant trait not only for assessing and forecasting food production but also for searching in genebanks for adaptive traits. Among the phenological parameters we have been considering to search for such adaptive and rare traits are the onset (sowing period) and the seasonality (growing period). Currently an application is being developed as part of the focused identification of germplasm strategy (FIGS) approach to use climatic data in order to identify crop growing seasons and characterize them in terms of onset and duration. These approximations of growing period characteristics can then be used to estimate flowering and maturity dates for dryland crops, such as wheat, barley, faba bean, lentils and chickpea, and assess, among others, phenology-related traits such as days to heading [dhe] and grain filling period [gfp]. The approach followed here is based on first calculating long term average daily temperatures by fitting a curve to the monthly data over days from beginning of the year. Prior to the identification of these phenological stages the onset is extracted first from onset integer raster GIS layers developed based on a model of the growing period that considers both moisture and temperature limitations. The paper presents some examples of real applications of the approach to search for rare and adaptive traits.

  20. Mortgage Delinquency and Changes in Access to Health Resources and Depressive Symptoms in a Nationally Representative Cohort of Americans Older Than 50 Years

    PubMed Central

    Lloyd, Jennifer; Pagán, José A.; Pollack, Craig E.; Shardell, Michelle; Cannuscio, Carolyn

    2011-01-01

    Objectives. We evaluated associations between mortgage delinquency and changes in health and health-relevant resources over 2 years, with data from the Health and Retirement Study, a longitudinal survey representative of US adults older than 50 years. Methods. In 2008, participants reported whether they had fallen behind on mortgage payments since 2006 (n = 2474). We used logistic regression to compare changes in health (incidence of elevated depressive symptoms, major declines in self-rated health) and access to health-relevant resources (food, prescription medications) between participants who fell behind on their mortgage payments and those who did not. Results. Compared with nondelinquent participants, the mortgage-delinquent group had worse health status and less access to health-relevant resources at baseline. They were also significantly more likely to develop incident depressive symptoms (odds ratio [OR] = 8.60; 95% confidence interval [CI] = 3.38, 21.85), food insecurity (OR = 7.53; 95% CI = 3.01, 18.84), and cost-related medication nonadherence (OR = 8.66; 95% CI = 3.72, 20.16) during follow-up. Conclusions. Mortgage delinquency was associated with significant elevations in the incidence of mental health impairments and health-relevant material disadvantage. Widespread mortgage default may have important public health implications. PMID:22021301

  1. Genomic resources for invertebrate vectors of human pathogens, and the role of VectorBase.

    PubMed

    Megy, K; Hammond, M; Lawson, D; Bruggner, R V; Birney, E; Collins, F H

    2009-05-01

    High-throughput genome sequencing techniques have now reached vector biology with an emphasis on those species that are vectors of human pathogens. The first mosquito to be sequenced was Anopheles gambiae, the vector for Plasmodium parasites that cause malaria. Further mosquitoes have followed: Aedes aegypti (yellow fever and dengue fever vector) and Culex pipiens (lymphatic filariasis and West Nile fever). Species that are currently in sequencing include the body louse Pediculus humanus (Typhus vector), the triatomine Rhodnius prolixus (Chagas disease vector) and the tick Ixodes scapularis (Lyme disease vector). The motivations for sequencing vector genomes are to further understand vector biology, with an eye on developing new control strategies (for example novel chemical attractants or repellents) or understanding the limitations of current strategies (for example the mechanism of insecticide resistance); to analyse the mechanisms driving their evolution; and to perform an exhaustive analysis of the gene repertory. The proliferation of genomic data creates the need for efficient and accessible storage. We present VectorBase, a genomic resource centre that is both involved in the annotation of vector genomes and act as a portal for access to the genomic information (http://www.vectorbase.org).

  2. Microsatellite-based genetic diversity among accessions of maize landraces from Sinaloa in México.

    PubMed

    Pineda-Hidalgo, Karen V; Méndez-Marroquín, Karla P; Alvarez, Elthon Vega; Chávez-Ontiveros, Jeanett; Sánchez-Peña, Pedro; Garzón-Tiznado, Jose A; Vega-García, Misael O; López-Valenzuela, Jose A

    2013-12-01

    In the state of Sinaloa México, traditional farmers still cultivate maize accessions with a wide diversity of morphological characteristics, but the gene reservoir maintained in these populations has been poorly studied and it is being lost due to changes in land use and the adoption of hybrid commercial varieties. The aim of this study was to evaluate the genetic diversity of some of these maize populations to contribute to their preservation. Twenty eight accessions were used for the analysis. DNA was extracted from 396 individuals and probed with 20 microsatellites distributed across the maize genome. A total of 121 alleles were obtained (average of 6.1 alleles per locus) and a total genetic diversity of 0.72. The UPGMA-cluster analysis, model-based population structure and principal component analysis revealed three major groups, one formed mainly by accessions of races typical of the Northwestern lowlands (Chapalote, Dulcillo del Noroeste, Tabloncillo Perla, Blando de Sonora and Elotero de Sinaloa) and the other two with accessions mainly from Tabloncillo and Tuxpeño. The high number of alleles per locus and total genetic diversity found in this study demonstrate a broad genetic basis of the accessions of maize landraces from Sinaloa, representing a gene reservoir useful in breeding programs.

  3. Aboriginal-Enhanced Access to Native Learning: A Literacy Project of the Native Women's Resource Centre. Final Report.

    ERIC Educational Resources Information Center

    Gaikezheyongai, Sally

    Ways of increasing awareness of and access to literacy programs for Native people in Toronto, Ontario, were examined. Data were collected through the following activities: a literature review; meetings with stakeholders and the public; surveys of learners, Native literacy workers, executive directors, and steering committee members; and focus…

  4. Problem-Based Learning in a Natural Resources Conservation and Management Curriculum: A Capstone Course.

    ERIC Educational Resources Information Center

    Arthur, M. A.; Thompson, J. A.

    1999-01-01

    Presents a course for natural resource conservation and management students that explicitly teaches integration of disciplinary knowledge using an internet-based approach to natural resource issues. (Author/CCM)

  5. FlyBase: establishing a Gene Group resource for Drosophila melanogaster.

    PubMed

    Attrill, Helen; Falls, Kathleen; Goodman, Joshua L; Millburn, Gillian H; Antonazzo, Giulia; Rey, Alix J; Marygold, Steven J

    2016-01-01

    Many publications describe sets of genes or gene products that share a common biology. For example, genome-wide studies and phylogenetic analyses identify genes related in sequence; high-throughput genetic and molecular screens reveal functionally related gene products; and advanced proteomic methods can determine the subunit composition of multi-protein complexes. It is useful for such gene collections to be presented as discrete lists within the appropriate Model Organism Database (MOD) so that researchers can readily access these data alongside other relevant information. To this end, FlyBase (flybase.org), the MOD for Drosophila melanogaster, has established a 'Gene Group' resource: high-quality sets of genes derived from the published literature and organized into individual report pages. To facilitate further analyses, Gene Group Reports also include convenient download and analysis options, together with links to equivalent gene groups at other databases. This new resource will enable researchers with diverse backgrounds and interests to easily view and analyse acknowledged D. melanogaster gene sets and compare them with those of other species.

  6. The National Toxicology Program Web-based nonneoplastic lesion atlas: a global toxicology and pathology resource.

    PubMed

    Cesta, Mark F; Malarkey, David E; Herbert, Ronald A; Brix, Amy; Hamlin, Melvin H; Singletary, Emily; Sills, Robert C; Bucher, John R; Birnbaum, Linda S

    2014-01-01

    Toxicologists and pathologists worldwide will benefit from a new, website-based, and completely searchable Nonneoplastic Lesion Atlas just released by the U.S. National Toxicology Program (NTP). The atlas is a much-needed resource with thousands of high-quality, zoomable images and diagnostic guidelines for each rodent lesion. Liver, gallbladder, nervous system, bone marrow, lower urinary tract and skin lesion images, and diagnostic strategies are available now. More organ and biological systems will be added with a total of 22 chapters planned for the completed project. The atlas will be used by the NTP and its many pathology partners to standardize lesion diagnosis, terminology, and the way lesions are recorded. The goal is to improve our understanding of nonneoplastic lesions and the consistency and accuracy of their diagnosis between pathologists and laboratories. The atlas is also a useful training tool for pathology residents and can be used to bolster any organization's own lesion databases. Researchers have free access to this online resource at www.ntp.niehs.nih.gov/nonneoplastic.

  7. A Shipping Container-Based Sterile Processing Unit for Low Resources Settings.

    PubMed

    Boubour, Jean; Jenson, Katherine; Richter, Hannah; Yarbrough, Josiah; Oden, Z Maria; Schuler, Douglas A

    2016-01-01

    Deficiencies in the sterile processing of medical instruments contribute to poor outcomes for patients, such as surgical site infections, longer hospital stays, and deaths. In low resources settings, such as some rural and semi-rural areas and secondary and tertiary cities of developing countries, deficiencies in sterile processing are accentuated due to the lack of access to sterilization equipment, improperly maintained and malfunctioning equipment, lack of power to operate equipment, poor protocols, and inadequate quality control over inventory. Inspired by our sterile processing fieldwork at a district hospital in Sierra Leone in 2013, we built an autonomous, shipping-container-based sterile processing unit to address these deficiencies. The sterile processing unit, dubbed "the sterile box," is a full suite capable of handling instruments from the moment they leave the operating room to the point they are sterile and ready to be reused for the next surgery. The sterile processing unit is self-sufficient in power and water and features an intake for contaminated instruments, decontamination, sterilization via non-electric steam sterilizers, and secure inventory storage. To validate efficacy, we ran tests of decontamination and sterilization performance. Results of 61 trials validate convincingly that our sterile processing unit achieves satisfactory outcomes for decontamination and sterilization and as such holds promise to support healthcare facilities in low resources settings.

  8. A Shipping Container-Based Sterile Processing Unit for Low Resources Settings.

    PubMed

    Boubour, Jean; Jenson, Katherine; Richter, Hannah; Yarbrough, Josiah; Oden, Z Maria; Schuler, Douglas A

    2016-01-01

    Deficiencies in the sterile processing of medical instruments contribute to poor outcomes for patients, such as surgical site infections, longer hospital stays, and deaths. In low resources settings, such as some rural and semi-rural areas and secondary and tertiary cities of developing countries, deficiencies in sterile processing are accentuated due to the lack of access to sterilization equipment, improperly maintained and malfunctioning equipment, lack of power to operate equipment, poor protocols, and inadequate quality control over inventory. Inspired by our sterile processing fieldwork at a district hospital in Sierra Leone in 2013, we built an autonomous, shipping-container-based sterile processing unit to address these deficiencies. The sterile processing unit, dubbed "the sterile box," is a full suite capable of handling instruments from the moment they leave the operating room to the point they are sterile and ready to be reused for the next surgery. The sterile processing unit is self-sufficient in power and water and features an intake for contaminated instruments, decontamination, sterilization via non-electric steam sterilizers, and secure inventory storage. To validate efficacy, we ran tests of decontamination and sterilization performance. Results of 61 trials validate convincingly that our sterile processing unit achieves satisfactory outcomes for decontamination and sterilization and as such holds promise to support healthcare facilities in low resources settings. PMID:27007568

  9. A Shipping Container-Based Sterile Processing Unit for Low Resources Settings

    PubMed Central

    2016-01-01

    Deficiencies in the sterile processing of medical instruments contribute to poor outcomes for patients, such as surgical site infections, longer hospital stays, and deaths. In low resources settings, such as some rural and semi-rural areas and secondary and tertiary cities of developing countries, deficiencies in sterile processing are accentuated due to the lack of access to sterilization equipment, improperly maintained and malfunctioning equipment, lack of power to operate equipment, poor protocols, and inadequate quality control over inventory. Inspired by our sterile processing fieldwork at a district hospital in Sierra Leone in 2013, we built an autonomous, shipping-container-based sterile processing unit to address these deficiencies. The sterile processing unit, dubbed “the sterile box,” is a full suite capable of handling instruments from the moment they leave the operating room to the point they are sterile and ready to be reused for the next surgery. The sterile processing unit is self-sufficient in power and water and features an intake for contaminated instruments, decontamination, sterilization via non-electric steam sterilizers, and secure inventory storage. To validate efficacy, we ran tests of decontamination and sterilization performance. Results of 61 trials validate convincingly that our sterile processing unit achieves satisfactory outcomes for decontamination and sterilization and as such holds promise to support healthcare facilities in low resources settings. PMID:27007568

  10. Griffiss Air Force Base integrated resource assessment. Volume 3, Electric resource assessment

    SciTech Connect

    Armstrong, P.R.; Shankle, S.A.; Elliott, D.B.; Stucky, D.J.; Keller, J.M.; Wahlstrom, R.R.; Dagle, J.E.; Gu, A.Y.

    1993-09-01

    The US Air Force Air Combat Command (ACC) has tasked the US Department of Energy (DOE) Federal Energy Management Program (FEMP) to identify, evaluate, and assist in acquiring all cost-effective energy projects at Griffiss Air Force Base (AFB). FEMP, with support from the Pacific Northwest Laboratory (PNL), is designing this model program for federal customers served by the Niagara Mohawk Power Company. The program with Griffiss AFB will (1) identify and evaluate all cost-effective electric energy projects; (2) develop a schedule for project acquisition considering project type, size, timing, capital requirements, as well as energy and dollar savings; and (3) secure 100% of the financing required to implement electric energy efficiency projects from Niagara Mohawk and have them procure the necessary contractors to perform detailed audits and install the technologies. This report provides the results of the electric energy resource opportunity (ERO) assessments performed by PNL at one of Niagara Mohawk`s primary federal facilities, the ACC Griffiss AFB facility located near Rome, New York. The results of the analyses of EROs are presented in seven common energy end-use categories. A narrative description of each ERO provides information on the initial cost, energy and dollar savings; impacts on operations and maintenance (O&M); and, when applicable, a discussion of energy supply and demand, energy security, and environmental issues. The evaluation methodology and technical and cost assumptions are also described for each ERO. Summary tables present the operational performance of energy end-use equipment before and after the implementation of each ERO and the results of the life-cycle cost analysis indicating the net present value (NPV) and savings-to-investment ratio (SIR) of each ERO.

  11. Vandenberg Air Force Base integrated resource assessment. Volume 3, Resource assessment

    SciTech Connect

    Daellenbach, K.K.; Dagle, J.E.; Dittmer, A.L.; Elliott, D.B.; Halverson, M.A.; Hickman, B.J.; Parker, G.B.; Richman, E.E.; Shankle, S.A.

    1993-06-01

    The US Air Force Space Command (SPACECOM) has tasked the Pacific Northwest Laboratory (PNL), as the lead laboratory supporting the US Department of Energy (DOE) Federal Energy Management Program (FEMP), to identify, evaluate, and assist in acquiring all cost-effective energy projects at Vandenberg Air Force Base (VAFB). This is part of a model program that PNL is designing to support energy-use decisions in the federal sector. This report provides the results of the fossil fuel and electric energy resource opportunity (ERO) assessments performed by PNL at the SPACECOM VAFB facility located approximately 50 miles northwest of Santa Barbara, California. It is a companion report to Volume 1, Executive Summary, and Volume 2, Baseline Detail. The results of the analysis of EROs are presented in ten common energy end-use categories (e.g., boilers and furnaces, service hot water, and building lighting). In addition, a case study of process loads at Space Launch Complex-4 (SLC-4) is included. A narrative description of each ERO is provided, including information on the installed cost, energy and dollar savings; impacts on operation and maintenance (O and M); and, when applicable, a discussion of energy supply and demand, energy security, and environmental issues. A description of the evaluation methodologies and technical and cost assumptions is also provided for each ERO. Summary tables present the cost-effectiveness of energy end-use equipment before and after the implementation of each ERO and present the results of the life-cycle cost (LCC) analysis indicating the net present value (NPV) and value index (VI) of each ERO. Finally, an appendix includes a summary of an economic analysis case study of the South Vandenberg Power Plant (SVPP) operating scenarios.

  12. Inequity of access to ACE inhibitors in Swedish heart failure patients: a register-based study

    PubMed Central

    Lindahl, Bertil; Hanning, Marianne; Westerling, Ragnar

    2016-01-01

    Background Several international studies suggest inequity in access to evidence-based heart failure (HF) care. Specifically, studies of ACE inhibitors (ACEIs) point to reduced ACEI access related to female sex, old age and socioeconomic position. Thus far, most studies have either been rather small, lacking diagnostic data, or lacking the possibility to account for several individual-based sociodemographic factors. Our aim was to investigate differences, which could reflect inequity in access to ACEIs based on sex, age, socioeconomic status or immigration status in Swedish patients with HF. Methods Individually linked register data for all Swedish adults hospitalised for HF in 2005–2010 (n=93 258) were analysed by multivariate regression models to assess the independent risk of female sex, high age, low employment status, low income level, low educational level or foreign country of birth, associated with lack of an ACEI dispensation within 1 year of hospitalisation. Adjustment for possible confounding was made for age, comorbidity, Angiotensin receptor blocker therapy, period and follow-up time. Results Analysis revealed an adjusted OR for no ACEI dispensation for women of 1.31 (95% CI 1.27 to 1.35); for the oldest patients of 2.71 (95% CI 2.53 to 2.91); and for unemployed patients of 1.59 (95% CI 1.46 to 1.73). Conclusions Access to ACEI treatment was reduced in women, older patients and unemployed patients. We conclude that access to ACEIs is inequitable among Swedish patients with HF. Future studies should include clinical data, as well as mortality outcomes in different groups. PMID:26261264

  13. Lack of access and continuity of adult health care: a national population-based survey

    PubMed Central

    Dilélio, Alitéia Santiago; Tomasi, Elaine; Thumé, Elaine; da Silveira, Denise Silva; Siqueira, Fernando Carlos Vinholes; Piccini, Roberto Xavier; Silva, Suele Manjourany; Nunes, Bruno Pereira; Facchini, Luiz Augusto

    2015-01-01

    OBJECTIVE To describe the lack of access and continuity of health care in adults. METHODS A cross-sectional population-based study was performed on a sample of 12,402 adults aged 20 to 59 years in urban areas of 100 municipalities of 23 states in the five Brazilian geopolitical regions. Barriers to the access and continuity of health care and were investigated based on receiving, needing and seeking health care (hospitalization and accident/emergency care in the last 12 months; care provided by a doctor, by other health professional or home care in the last three months). Based on the results obtained by the description of the sample, a projection is provided for adults living in Brazilian urban areas. RESULTS The highest prevalence of lack of access to health services and to provision of care by health professionals was for hospitalization (3.0%), whilst the lowest prevalence was for care provided by a doctor (1.1%). The lack of access to care provided by other health professionals was 2.0%; to accident and emergency services, 2.1%; and to home care, 2.9%. As for prevalences, the greatest absolute lack of access occurred in emergency care (more than 360,000 adults). The main reasons were structural and organizational problems, such as unavailability of hospital beds, of health professionals, of appointments for the type of care needed and charges made for care. CONCLUSIONS The universal right to health care in Brazil has not yet been achieved. These projections can help health care management in scaling the efforts needed to overcome this problem, such as expanding the infrastructure of health services and the workforce. PMID:26061454

  14. StreptoBase: An Oral Streptococcus mitis Group Genomic Resource and Analysis Platform.

    PubMed

    Zheng, Wenning; Tan, Tze King; Paterson, Ian C; Mutha, Naresh V R; Siow, Cheuk Chuen; Tan, Shi Yang; Old, Lesley A; Jakubovics, Nicholas S; Choo, Siew Woh

    2016-01-01

    The oral streptococci are spherical Gram-positive bacteria categorized under the phylum Firmicutes which are among the most common causative agents of bacterial infective endocarditis (IE) and are also important agents in septicaemia in neutropenic patients. The Streptococcus mitis group is comprised of 13 species including some of the most common human oral colonizers such as S. mitis, S. oralis, S. sanguinis and S. gordonii as well as species such as S. tigurinus, S. oligofermentans and S. australis that have only recently been classified and are poorly understood at present. We present StreptoBase, which provides a specialized free resource focusing on the genomic analyses of oral species from the mitis group. It currently hosts 104 S. mitis group genomes including 27 novel mitis group strains that we sequenced using the high throughput Illumina HiSeq technology platform, and provides a comprehensive set of genome sequences for analyses, particularly comparative analyses and visualization of both cross-species and cross-strain characteristics of S. mitis group bacteria. StreptoBase incorporates sophisticated in-house designed bioinformatics web tools such as Pairwise Genome Comparison (PGC) tool and Pathogenomic Profiling Tool (PathoProT), which facilitate comparative pathogenomics analysis of Streptococcus strains. Examples are provided to demonstrate how StreptoBase can be employed to compare genome structure of different S. mitis group bacteria and putative virulence genes profile across multiple streptococcal strains. In conclusion, StreptoBase offers access to a range of streptococci genomic resources as well as analysis tools and will be an invaluable platform to accelerate research in streptococci. Database URL: http://streptococcus.um.edu.my.

  15. StreptoBase: An Oral Streptococcus mitis Group Genomic Resource and Analysis Platform.

    PubMed

    Zheng, Wenning; Tan, Tze King; Paterson, Ian C; Mutha, Naresh V R; Siow, Cheuk Chuen; Tan, Shi Yang; Old, Lesley A; Jakubovics, Nicholas S; Choo, Siew Woh

    2016-01-01

    The oral streptococci are spherical Gram-positive bacteria categorized under the phylum Firmicutes which are among the most common causative agents of bacterial infective endocarditis (IE) and are also important agents in septicaemia in neutropenic patients. The Streptococcus mitis group is comprised of 13 species including some of the most common human oral colonizers such as S. mitis, S. oralis, S. sanguinis and S. gordonii as well as species such as S. tigurinus, S. oligofermentans and S. australis that have only recently been classified and are poorly understood at present. We present StreptoBase, which provides a specialized free resource focusing on the genomic analyses of oral species from the mitis group. It currently hosts 104 S. mitis group genomes including 27 novel mitis group strains that we sequenced using the high throughput Illumina HiSeq technology platform, and provides a comprehensive set of genome sequences for analyses, particularly comparative analyses and visualization of both cross-species and cross-strain characteristics of S. mitis group bacteria. StreptoBase incorporates sophisticated in-house designed bioinformatics web tools such as Pairwise Genome Comparison (PGC) tool and Pathogenomic Profiling Tool (PathoProT), which facilitate comparative pathogenomics analysis of Streptococcus strains. Examples are provided to demonstrate how StreptoBase can be employed to compare genome structure of different S. mitis group bacteria and putative virulence genes profile across multiple streptococcal strains. In conclusion, StreptoBase offers access to a range of streptococci genomic resources as well as analysis tools and will be an invaluable platform to accelerate research in streptococci. Database URL: http://streptococcus.um.edu.my. PMID:27138013

  16. StreptoBase: An Oral Streptococcus mitis Group Genomic Resource and Analysis Platform

    PubMed Central

    Zheng, Wenning; Paterson, Ian C.; Mutha, Naresh V. R.; Siow, Cheuk Chuen; Tan, Shi Yang; Old, Lesley A.; Jakubovics, Nicholas S.; Choo, Siew Woh

    2016-01-01

    The oral streptococci are spherical Gram-positive bacteria categorized under the phylum Firmicutes which are among the most common causative agents of bacterial infective endocarditis (IE) and are also important agents in septicaemia in neutropenic patients. The Streptococcus mitis group is comprised of 13 species including some of the most common human oral colonizers such as S. mitis, S. oralis, S. sanguinis and S. gordonii as well as species such as S. tigurinus, S. oligofermentans and S. australis that have only recently been classified and are poorly understood at present. We present StreptoBase, which provides a specialized free resource focusing on the genomic analyses of oral species from the mitis group. It currently hosts 104 S. mitis group genomes including 27 novel mitis group strains that we sequenced using the high throughput Illumina HiSeq technology platform, and provides a comprehensive set of genome sequences for analyses, particularly comparative analyses and visualization of both cross-species and cross-strain characteristics of S. mitis group bacteria. StreptoBase incorporates sophisticated in-house designed bioinformatics web tools such as Pairwise Genome Comparison (PGC) tool and Pathogenomic Profiling Tool (PathoProT), which facilitate comparative pathogenomics analysis of Streptococcus strains. Examples are provided to demonstrate how StreptoBase can be employed to compare genome structure of different S. mitis group bacteria and putative virulence genes profile across multiple streptococcal strains. In conclusion, StreptoBase offers access to a range of streptococci genomic resources as well as analysis tools and will be an invaluable platform to accelerate research in streptococci. Database URL: http://streptococcus.um.edu.my. PMID:27138013

  17. A Theory of Access

    ERIC Educational Resources Information Center

    Ribot, Jesse C.; Peluso, Nancy Lee

    2003-01-01

    The term "access" is frequently used by property and natural resource analysts without adequate definition. In this paper we develop a concept of access and examine a broad set of factors that differentiate access from property. We define access as "the "ability" to derive benefits from things," broadening from property's classical definition as…

  18. Access and benefits sharing of genetic resources and associated traditional knowledge in northern Canada: understanding the legal environment and creating effective research agreements

    PubMed Central

    Geary, Janis; Jardine, Cynthia G.; Guebert, Jenilee; Bubela, Tania

    2013-01-01

    Background Research in northern Canada focused on Aboriginal peoples has historically benefited academia with little consideration for the people being researched or their traditional knowledge (TK). Although this attitude is changing, the complexity of TK makes it difficult to develop mechanisms to preserve and protect it. Protecting TK becomes even more important when outside groups become interested in using TK or materials with associated TK. In the latter category are genetic resources, which may have commercial value and are the focus of this article. Objective This article addresses access to and use of genetic resources and associated TK in the context of the historical power-imbalances in research relationships in Canadian north. Design Review. Results Research involving genetic resources and TK is becoming increasingly relevant in northern Canada. The legal framework related to genetic resources and the cultural shift of universities towards commercial goals in research influence the environment for negotiating research agreements. Current guidelines for research agreements do not offer appropriate guidelines to achieve mutual benefit, reflect unequal bargaining power or take the relationship between parties into account. Conclusions Relational contract theory may be a useful framework to address the social, cultural and legal hurdles inherent in creating research agreements. PMID:23986896

  19. Effect of Personality on the Use and Perceived Utility of Web-Based Health Resources

    ERIC Educational Resources Information Center

    Hruska, Natalie

    2012-01-01

    Studies document numerous threats to human health exacerbated by multiple factors, including inadequate access to health-related information. The Internet has developed as one resource to provide health information; however, there remains a significant gap in understanding how personality differences influence the use and perceived utility of the…

  20. Cross-Discipline Investigation of the Relationship between Academic Performance and Online Resource Access by Distance Education Students

    ERIC Educational Resources Information Center

    Crampton, Andrea; Ragusa, Angela T.; Cavanagh, Heather

    2012-01-01

    Educational technology implementation often owes more to the technical proficiency of the teaching staff and/or the capacity of the institution than to a student outcome-centred design process. Creation of online resources takes considerable time and involves significant cost to both the institution, for devices and platforms, and to students for…

  1. Challenges of Providing Bibliographic Access to Remote Electronic Resources in National Bibliographies: Problems and Solutions--An Overview.

    ERIC Educational Resources Information Center

    Byrum, John D., Jr.

    The proliferation of online resources has resulted in creating and accentuating challenges for national bibliographic agencies throughout the world. Through strategic planning and innovative approaches, providers of national bibliographies are seeking to realize bibliographic control of remote electronic material. For success, they will need to…

  2. Equitable Access to Educational Resources: An Investigation of the Distribution of Teacher Quality across Secondary Schools in South Florida

    ERIC Educational Resources Information Center

    Richards, Sabrina

    2014-01-01

    This quantitative study examined secondary schools across a south Florida school district to determine the relationship between school characteristics and measures of teacher quality with the aim of ascertaining the equitable distribution of the educational resource, teacher quality. Data regarding student population, staff climate survey…

  3. Evaluating the Effectiveness of the Open-Access ChemWiki Resource as a Replacement for Traditional General Chemistry Textbooks

    ERIC Educational Resources Information Center

    Allen, Gregory; Guzman-Alvarez, Alberto; Smith, Amy; Gamage, Alan; Molinaro, Marco; Larsen, Delmar S.

    2015-01-01

    Open educational resources (OERs) provide a potential alternative to costly textbooks and can allow content to be edited and adapted to a variety of classroom environments. At the University of California, Davis, the OER "ChemWiki" project, as part of the greater STEMWiki Hyperlibrary, was developed to supplant traditional post-secondary…

  4. 28 CFR 16.82 - Exemption of the National Drug Intelligence Center Data Base-limited access.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Intelligence Center Data Base-limited access. 16.82 Section 16.82 Judicial Administration DEPARTMENT OF JUSTICE....82 Exemption of the National Drug Intelligence Center Data Base—limited access. (a) The following... Intelligence Center Data Base (JUSTICE/NDIC-001). (2) (b) These exemptions apply only to the extent...

  5. An efficient and secure attribute based signcryption scheme with LSSS access structure.

    PubMed

    Hong, Hanshu; Sun, Zhixin

    2016-01-01

    Attribute based encryption (ABE) and attribute based signature (ABS) provide flexible access control with authentication for data sharing between users, but realizing both functions will bring about too much computation burden. In this paper, we combine the advantages of CP-ABE with ABS and propose a ciphertext policy attribute based signcryption scheme. In our scheme, only legal receivers can decrypt the ciphertext and verify the signature signed by data owner. Furthermore, we use linear secret sharing scheme instead of tree structure to avoid the frequent calls of recursive algorithm. By security and performance analysis, we prove that our scheme is secure as well as gains higher efficiency. PMID:27330910

  6. Instructional Technology and Learning Resource Center-Based Community Education.

    ERIC Educational Resources Information Center

    Brown, James W.

    A survey of nonformal community education activities was conducted to determine specific use of media for identified educational and informational purposes. The results presented in this report are intended to provide resource information to professionals and paraprofessionals who ultimately may be employed in Learning Resource Center-Based…

  7. XRootd, disk-based, caching proxy for optimization of data access, data placement and data replication

    NASA Astrophysics Data System (ADS)

    Bauerdick, L. A. T.; Bloom, K.; Bockelman, B.; Bradley, D. C.; Dasu, S.; Dost, J. M.; Sfiligoi, I.; Tadel, A.; Tadel, M.; Wuerthwein, F.; Yagil, A.; Cms Collaboration

    2014-06-01

    Following the success of the XRootd-based US CMS data federation, the AAA project investigated extensions of the federation architecture by developing two sample implementations of an XRootd, disk-based, caching proxy. The first one simply starts fetching a whole file as soon as a file open request is received and is suitable when completely random file access is expected or it is already known that a whole file be read. The second implementation supports on-demand downloading of partial files. Extensions to the Hadoop Distributed File System have been developed to allow for an immediate fallback to network access when local HDFS storage fails to provide the requested block. Both cache implementations are in pre-production testing at UCSD.

  8. Water Resources Investigations at Edwards Air Force Base since 1988

    USGS Publications Warehouse

    Sneed, Michelle; Nishikawa, Tracy; Martin, Peter

    2006-01-01

    Edwards Air Force Base (EAFB) in southern California (fig. 1) has relied on ground water to meet its water-supply needs. The extraction of ground water has led to two major problems that can directly affect the mission of EAFB: declining water levels (more than 120 ft since the 1920s) and land subsidence, a gradual downward movement of the land surface (more than 4 ft since the late 1920s). As water levels decline, this valuable resource becomes depleted, thus requiring mitigating measures. Land subsidence has caused cracked (fissured) runways and accelerated erosion on Rogers lakebed. In 1988, the U.S. Geological Survey (USGS), in cooperation with the U.S. Air Force, began investigations of the effects of declining water levels and land subsidence at EAFB and possible mitigation measures, such as the injection of imported surface water into the ground-water system. The cooperative investigations included data collection and analyses, numerical simulations of ground-water flow and land subsidence, and development of a preliminary simulation-optimization model. The results of these investigations indicate that the injection of imported water may help to control land subsidence; however, the potential ground-water-quality impacts are unknown.

  9. Ethernet access network based on free-space optic deployment technology

    NASA Astrophysics Data System (ADS)

    Gebhart, Michael; Leitgeb, Erich; Birnbacher, Ulla; Schrotter, Peter

    2004-06-01

    The satisfaction of all communication needs from single households and business companies over a single access infrastructure is probably the most challenging topic in communications technology today. But even though the so-called "Last Mile Access Bottleneck" is well known since more than ten years and many distribution technologies have been tried out, the optimal solution has not yet been found and paying commercial access networks offering all service classes are still rare today. Conventional services like telephone, radio and TV, as well as new and emerging services like email, web browsing, online-gaming, video conferences, business data transfer or external data storage can all be transmitted over the well known and cost effective Ethernet networking protocol standard. Key requirements for the deployment technology driven by the different services are high data rates to the single customer, security, moderate deployment costs and good scalability to number and density of users, quick and flexible deployment without legal impediments and high availability, referring to the properties of optical and wireless communication. We demonstrate all elements of an Ethernet Access Network based on Free Space Optic distribution technology. Main physical parts are Central Office, Distribution Network and Customer Equipment. Transmission of different services, as well as configuration, service upgrades and remote control of the network are handled by networking features over one FSO connection. All parts of the network are proven, the latest commercially available technology. The set up is flexible and can be adapted to any more specific need if required.

  10. Experimental studies of access graph based heuristics: Beating the LRU standard?

    SciTech Connect

    Fiat, A.; Rosen, Z.

    1997-06-01

    In this paper we devise new paging heuristics motivated by the access graph model of paging. Unlike the access graph model and the related Markov paging model our heuristics are truly on-line in that we do not assume any prior knowledge of the program just about to be executed. The Least Recently Used heuristic for paging is remarkably good, and is known experimentally to be superior to many of the suggested alternatives on real program traces. Experiments we`ve performed suggest that our heuristics beat LRU fairly consistently, over a wide range of cache sizes and programs. The number of page faults can be as low as {1/2} the number of page faults for LRU and is on average 7 to 9 percent less than the number of faults for LRU. (Depending on how this average is computed.) We have built a program tracer that gives the page access sequence for real program executions of 200 - 3,300 thousand page access requests, and our simulations are based on 25 of these program traces. Overall, we have performed several thousand such simulations. While we have no real evidence to suggest that the programs we`ve traced are typical in any sense, we have made use of an experimental {open_quotes}protocol{close_quotes} designed to avoid experimenter bias. We strongly emphasize that our results are only preliminary and that much further work needs to be done.

  11. Indexing the medical open access literature for textual and content-based visual retrieval.

    PubMed

    Eggel, Ivan; Müller, Henning

    2010-01-01

    Over the past few years an increasing amount of scientific journals have been created in an open access format. Particularly in the medical field the number of openly accessible journals is enormous making a wide body of knowledge available for analysis and retrieval. Part of the trend towards open access publications can be linked to funding bodies such as the NIH1 (National Institutes of Health) and the Swiss National Science Foundation (SNF2) requiring funded projects to make all articles of funded research available publicly. This article describes an approach to make part of the knowledge of open access journals available for retrieval including the textual information but also the images contained in the articles. For this goal all articles of 24 journals related to medical informatics and medical imaging were crawled from the web pages of BioMed Central. Text and images of the PDF (Portable Document Format) files were indexed separately and a web-based retrieval interface allows for searching via keyword queries or by visual similarity queries. Starting point for a visual similarity query can be an image on the local hard disk that is uploaded or any image found via the textual search. Search for similar documents is also possible.

  12. Reducing youth access to alcohol: findings from a community-based randomized trial.

    PubMed

    Flewelling, Robert L; Grube, Joel W; Paschall, M J; Biglan, Anthony; Kraft, Anne; Black, Carol; Hanley, Sean M; Ringwalt, Christopher; Wiesen, Chris; Ruscoe, Jeff

    2013-03-01

    Underage drinking continues to be an important public health problem and a challenge to the substance abuse prevention field. Community-based interventions designed to more rigorously control underage access to alcohol through retailer education and greater enforcement of underage drinking laws have been advocated as potentially effective strategies to help address this problem, but studies designed to evaluate such interventions are sparse. To address this issue we conducted a randomized trial involving 36 communities to test the combined effectiveness of five interrelated intervention components designed to reduce underage access to alcohol. The intervention was found to be effective in reducing the likelihood that retail clerks would sell alcohol to underage-looking buyers, but did not reduce underage drinking or the perceived availability of alcohol among high school students. Post hoc analyses, however, revealed significant associations between the level of underage drinking law enforcement in the intervention communities and reductions in both 30-day use of alcohol and binge drinking. The findings highlight the difficulty in reducing youth drinking even when efforts to curtail retail access are successful. Study findings also suggest that high intensity implementation of underage drinking law enforcement can reduce underage drinking. Any such effects of enhanced enforcement on underage drinking appear to be more directly attributable to an increase in perceived likelihood of enforcement and the resultant perceived inconveniences and/or sanctions to potential drinkers, than to a reduction in access to alcohol per se.

  13. Web-Based Geographic Information System Tool for Accessing Hanford Site Environmental Data

    SciTech Connect

    Triplett, Mark B.; Seiple, Timothy E.; Watson, David J.; Charboneau, Briant L.; Morse, John G.

    2014-11-15

    Data volume, complexity, and access issues pose severe challenges for analysts, regulators and stakeholders attempting to efficiently use legacy data to support decision making at the U.S. Department of Energy’s (DOE) Hanford Site. DOE has partnered with the Pacific Northwest National Laboratory (PNNL) on the PHOENIX (PNNL-Hanford Online Environmental Information System) project, which seeks to address data access, transparency, and integration challenges at Hanford to provide effective decision support. PHOENIX is a family of spatially-enabled web applications providing quick access to decades of valuable scientific data and insight through intuitive query, visualization, and analysis tools. PHOENIX realizes broad, public accessibility by relying only on ubiquitous web-browsers, eliminating the need for specialized software. It accommodates a wide range of users with intuitive user interfaces that require little or no training to quickly obtain and visualize data. Currently, PHOENIX is actively hosting three applications focused on groundwater monitoring, groundwater clean-up performance reporting, and in-tank monitoring. PHOENIX-based applications are being used to streamline investigative and analytical processes at Hanford, saving time and money. But more importantly, by integrating previously isolated datasets and developing relevant visualization and analysis tools, PHOENIX applications are enabling DOE to discover new correlations hidden in legacy data, allowing them to more effectively address complex issues at Hanford.

  14. Proto-Examples of Data Access and Visualization Components of a Potential Cloud-Based GEOSS-AI System

    NASA Astrophysics Data System (ADS)

    Teng, W. L.; Lynnes, C.

    2014-12-01

    Once a research or application problem has been identified, one logical next step is to search for available relevant data products. Thus, an early component of a potential GEOSS-AI system, in the continuum between observations and end point research, applications, and decision making, would be one that enables transparent data discovery and access by users. Such a component might be effected via the system's "data agents." Presumably, some kind of data cataloging has already been implemented, e.g., in the GEOSS Common Infrastructure (GCI). Both the agents and cataloging could also leverage existing resources external to the system. The system would have some means to accept and integrate user-contributed agents. The need or desirability for some data format internal to the system should be evaluated. Another early component would be one that facilitates browsing/visualization of the data, as well as some basic analyses. Three ongoing projects at the NASA Goddard Earth Sciences Data and Information Services Center (GES DISC) provide possible proto-examples of potential data access and visualization components of a cloud-based GEOSS-AI system. Reorganizing data archived as time-step arrays to point-time series ("data rods"), as well as leveraging the NASA Simple Subset Wizard (SSW), to significantly increase the number of data products available, at multiple NASA data centers, for production as on-the-fly (virtual) data rods. SSW's data discovery is based on OpenSearch. Both pre-generated and virtual data rods are accessible via Web services. Developing Web Feature Services to publish the metadata, and expose the locations, of pre-generated and virtual data rods in the GEOSS Portal and enable direct access of the data via Web services. SSW is also leveraged to increase the availability of both NASA and non-NASA data. Federating NASA Giovanni (Geospatial Interactive Online Visualization and Analysis Interface), for multi-sensor data exploration, that would allow each

  15. Proto-Examples of Data Access and Visualization Components of a Potential Cloud-Based GEOSS-AI System

    NASA Technical Reports Server (NTRS)

    Teng, William; Lynnes, Christopher

    2014-01-01

    Once a research or application problem has been identified, one logical next step is to search for available relevant data products. Thus, an early component of a potential GEOSS-AI system, in the continuum between observations and end point research, applications, and decision making, would be one that enables transparent data discovery and access by users. Such a component might be effected via the systems data agents. Presumably, some kind of data cataloging has already been implemented, e.g., in the GEOSS Common Infrastructure (GCI). Both the agents and cataloging could also leverage existing resources external to the system. The system would have some means to accept and integrate user-contributed agents. The need or desirability for some data format internal to the system should be evaluated. Another early component would be one that facilitates browsing visualization of the data, as well as some basic analyses.Three ongoing projects at the NASA Goddard Earth Sciences Data and Information Services Center (GES DISC) provide possible proto-examples of potential data access and visualization components of a cloud-based GEOSS-AI system. 1. Reorganizing data archived as time-step arrays to point-time series (data rods), as well as leveraging the NASA Simple Subset Wizard (SSW), to significantly increase the number of data products available, at multiple NASA data centers, for production as on-the-fly (virtual) data rods. SSWs data discovery is based on OpenSearch. Both pre-generated and virtual data rods are accessible via Web services. 2. Developing Web Feature Services to publish the metadata, and expose the locations, of pre-generated and virtual data rods in the GEOSS Portal and enable direct access of the data via Web services. SSW is also leveraged to increase the availability of both NASA and non-NASA data.3.Federating NASA Giovanni (Geospatial Interactive Online Visualization and Analysis Interface), for multi-sensor data exploration, that would allow each

  16. Increasing Need-Based Grant Aid Is the Most Efficient Way To Expand College Access. Illuminations: Highlighting Important Research in Postsecondary Education Access. New Agenda Series.

    ERIC Educational Resources Information Center

    Lumina Foundation for Education, 2004

    2004-01-01

    This two-page summary offers an overview of a "New Agenda Series" publication relating to need-based grant aid. The federal and state governments share the responsibility for providing access to postsecondary education. They do this through direct appropriations, student financial aid programs and other support for research and educational…

  17. Giovanni Data Portals and Resources Support Student Problem-Based Learning for Climate Change Education

    NASA Astrophysics Data System (ADS)

    Acker, J. G.; Zalles, D. R.; Krumhansl, R. A.

    2012-12-01

    The Data-Enhanced Investigations for Climate Change Education (DICCE) project, funded by NASA, is providing dedicated climate data portals in the NASA Giovanni data system for the use of teachers and students. The central content of the DICCE-Giovanni data portals is a reduced set of climate-relevant data parameters drawn from the available Giovanni data sets, with accessible meanings, such as surface temperature, precipitation amount, snow cover, phytoplankton chlorophyll concentration, vegetation indices, and aerosol optical depth. Information resources explain the significance of the data to climate research, how to interpret climate data trends, and address uncertainties in both data visualizations and the interpretation of data plotting output. "How-to" videos and plotting tips facilitate the utilization of the data portals, so that teachers can create problem-based projects based on actual satellite observational data. The use of satellite data in a problem-based framework enhances the relevance and immediacy of the project content to the student, improves their understanding of Earth climate system interrelationships, and also improves pattern recognition, math skills, and interpretation of data representations.;

  18. A secure WDM ring access network employing silicon micro-ring based remote node

    NASA Astrophysics Data System (ADS)

    Sung, Jiun-Yu; Chow, Chi-Wai; Yeh, Chien-Hung; Xu, Ke; Hsu, Chin-Wei; Su, Hong-Quan; Tsang, Hon-Ki

    2014-08-01

    A secure and scalable wavelength-division-multiplexing (WDM) ring-based access network is proposed and demonstrated using proof-of-concept experiments. In the remote node (RN), wavelength hopping for specific optical networking unit (ONU) is deployed by using silicon micro-ring resonators (SMR). Using silicon-based devices could be cost-effective for the cost-sensitive access network. Hence the optical physical layer security is introduced. The issues of denial of service (DOS) attacks, eavesdropping and masquerading can be made more difficult in the proposed WDM ring-based access network. Besides, the SMRs with different dropped wavelengths can be cascaded, such that the signals pass through the preceding SMRs can be dropped by a succeeding SMR. This can increase the scalability of the RN for supporting more ONUs for future upgrade. Here, error-free 10 Gb/s downlink and 1.25 Gb/s uplink transmission are demonstrated to show the feasibility of the proposed network.

  19. Online Resource-Based Learning Environment: Case Studies in Primary Classrooms

    ERIC Educational Resources Information Center

    So, Winnie Wing Mui; Ching, Fiona Ngai Ying

    2012-01-01

    This paper discusses the creation of learning environments with online resources by three primary school teachers for pupil's learning of science-related topics with reference to the resource-based e-learning environments (RBeLEs) framework. Teachers' choice of contexts, resources, tools, and scaffolds in designing the learning environments are…

  20. ResourceLog: An Embeddable Tool for Dynamically Monitoring the Usage of Web-Based Bioscience Resources

    PubMed Central

    Liu, Nian; Marenco, Luis; Miller, Perry L.

    2006-01-01

    The present study described an open source application, ResourceLog, that allows website administrators to record and analyze the usage of online resources. The application includes four components: logging, data mining, administrative interface, and back-end database. The logging component is embedded in the host website. It extracts and streamlines information about the Web visitors, the scripts, and dynamic parameters from each page request. The data mining component runs as a set of scheduled tasks that identify visitors of interest, such as those who have heavily used the resources. The identified visitors will be automatically subjected to a voluntary user survey. The usage of the website content can be monitored through the administrative interface and subjected to statistical analyses. As a pilot project, ResourceLog has been implemented in SenseLab, a Web-based neuroscience database system. ResourceLog provides a robust and useful tool to aid system evaluation of a resource-driven Web application, with a focus on determining the effectiveness of data sharing in the field and with the general public. PMID:16622167