WorldWideScience

Sample records for source positional information

  1. Position Information

    Data.gov (United States)

    Social Security Administration — The Position Information Data Asset provides the ability to search for active SSA position descriptions using various search criteria. An individual may search by PD...

  2. Antiproton source beam position system

    International Nuclear Information System (INIS)

    Bagwell, T.; Holmes, S.; McCarthy, J.; Webber, R.

    1984-05-01

    The TeV I Beam Position Monitor (BPM) system is designed to provide a useful diagnostic tool during the commissioning and operational phases of the antiproton source. Simply stated the design goal is to provide single turn position information for intensities of > 1x10 9 particles, and multi-turn (clocked orbit) information for beam intensities of > 1x10 7 particles, both with sub-millimeter resolution. It is anticipated that the system will be used during commissioning for establishing the first turn through the Debuncher and Accumulator, for aligning injection orbits, for providing information necessary to correct closed orbits, and for measuring various machine parameters (e.g. tunes, dispersion, aperture, chromaticity). During normal antiproton operation the system will be used to monitor the beam position throughout the accumulation process

  3. TARGET-DIRECTED RUNNING IN GYMNASTICS: THE ROLE OF THE SPRINGBOARD POSITION AS AN INFORMATIONAL SOURCE TO REGULATE HANDSPRINGS ON VAULT

    Directory of Open Access Journals (Sweden)

    T. Heinen

    2011-11-01

    Full Text Available Empirical evidence highlights the role of visual information to control gymnastics vaulting and thus neglects a stereotyped approach run. However, there is no evidence on which informational source this regulation is based on. The aim of this study was to examine the position of the springboard as an informational source in the regulation of the handspring on vault. The hypothesis tested was that the action of running towards the springboard brings about changes in the approach run kinematics and handspring kinematics that relate directly to the position of the springboard. Therefore, kinematics of N = 14 female expert gymnasts’ handsprings on vault and their approach runs were examined while manipulating the position of the springboard. The results revealed that expert gymnasts placed their feet on average in the same position on the springboard and adapted to the springboard position during the last three steps of the approach run. A smaller springboard distance to the front edge of the vaulting table resulted in a different hand placement on the vaulting table, a shorter first flight phase, a take-off angle closer to 90° and a longer second flight phase. Findings suggest that the position of the springboard is a relevant informational source in gymnastics vaulting. We state that knowledge about relationships between informational sources in the environment and the resulting regulatory processes in athletes may help coaches to develop specific training programmes in order to optimize performance in complex skills.

  4. Producing more persuasive antiviolence messages for college students: testing the effects of framing, information sources, and positive/negative fact appeal.

    Science.gov (United States)

    Yu, Hyunjae Jay

    2012-06-01

    College students, between the ages of about 18 and 24, are the group of people who are most often exposed to situations involving diverse types of violence. They have greater access to alcohol and drugs and are under far less parental supervision than younger age groups; reports have shown that frequent involvement in several types of violent behaviors can seriously damage college students physically and psychologically. However, despite the high rate of violence among college students, there has not been enough discussion about how we can produce more effective antiviolence messages targeting college students. This research provides some useful insights into this issue by testing the possible effects of three antiviolence message conditions: gain/loss framing, different information sources, and negative/positive fact appeal. The results reveal that college students in this study find more appeal in antiviolence messages conveyed by a traditional public service announcement (PSA) than in a TV news report. The results also reveal that people pay more attention to messages that use negative fact appeal (e.g., "There are many people losing a lot of precious things because of their violent behaviors") than to those that use positive fact appeal (e.g., "There are many people gaining a lot of precious things by avoiding violent behaviors"). An interaction effect between information sources and positive/negative fact appeal was also detected.

  5. Online Sources for Competitor Information.

    Science.gov (United States)

    Weiss, Arthur

    Competitor information gathering is a key aspect of business planning. Information can be collected from either published or unpublished sources. Unpublished information will often be verified based on material from published sources. Published information is more likely to be factual and includes financial, stockmarket, press, market and…

  6. Modelling Choice of Information Sources

    Directory of Open Access Journals (Sweden)

    Agha Faisal Habib Pathan

    2013-04-01

    Full Text Available This paper addresses the significance of traveller information sources including mono-modal and multimodal websites for travel decisions. The research follows a decision paradigm developed earlier, involving an information acquisition process for travel choices, and identifies the abstract characteristics of new information sources that deserve further investigation (e.g. by incorporating these in models and studying their significance in model estimation. A Stated Preference experiment is developed and the utility functions are formulated by expanding the travellers' choice set to include different combinations of sources of information. In order to study the underlying choice mechanisms, the resulting variables are examined in models based on different behavioural strategies, including utility maximisation and minimising the regret associated with the foregone alternatives. This research confirmed that RRM (Random Regret Minimisation Theory can fruitfully be used and can provide important insights for behavioural studies. The study also analyses the properties of travel planning websites and establishes a link between travel choices and the content, provenance, design, presence of advertisements, and presentation of information. The results indicate that travellers give particular credence to governmentowned sources and put more importance on their own previous experiences than on any other single source of information. Information from multimodal websites is more influential than that on train-only websites. This in turn is more influential than information from friends, while information from coachonly websites is the least influential. A website with less search time, specific information on users' own criteria, and real time information is regarded as most attractive

  7. Information in vague data sources

    Czech Academy of Sciences Publication Activity Database

    Mareš, Milan; Mesiar, Radko

    2013-01-01

    Roč. 49, č. 3 (2013), s. 433-445 ISSN 0023-5954 R&D Projects: GA ČR GAP402/11/0378 Keywords : alphabet * triangular norm * information * entropy * fuzziness * data source Subject RIV: BA - General Mathematics Impact factor: 0.563, year: 2013 http://library.utia.cas.cz/separaty/2013/E/mesiar-information in vague data sources.pdf

  8. Consumer Trust in Information Sources

    Directory of Open Access Journals (Sweden)

    Brad Love

    2013-06-01

    Full Text Available Trust is essential to understanding public reaction to innovative issues. This research focuses on trust in information sources by explicating the construct of trust and testing a comprehensive model on several information sources about genetically modified foods. Results from a survey of 369 participants reveal the significance of projecting competence and the role of the environment in which a target public receives information. Perceptions of regulatory, social, business, and technical environments affect how likely individuals are to follow advice from institutions like the Food and Drug Administration and the news media. Future research should incorporate knowledge levels and personal relevance as variables likely to influence trusting relationships.

  9. Information, Overconfidence and Trading: Do the Sources of Information Matter?

    OpenAIRE

    Margarida Abreu; Victor Mendes

    2011-01-01

    We investigate how the strength of the positive association between frequency of trading and information acquisition is dependent on investors’ self‐confidence and on the sources of information used by investors. Our results confirm that the more frequently individual investors invest in information, the more they trade in financial products. Our results also confirm previous findings that overconfident investors, who show a better than average bias, trade more frequently. In this paper, we a...

  10. Harvesting Information from Heterogeneous Sources

    DEFF Research Database (Denmark)

    Qureshi, Pir Abdul Rasool; Memon, Nasrullah; Wiil, Uffe Kock

    2011-01-01

    The abundance of information regarding any topic makes the Internet a very good resource. Even though searching the Internet is very easy, what remains difficult is to automate the process of information extraction from the available online information due to the lack of structure and the diversi...... with performance of our tool with respect to each format. Finally, the different potential applications of the proposed tool are discussed with special emphasis on open source intelligence....... in the sharing methods. Most of the times, information is stored in different proprietary formats, complying with different standards and protocols which makes tasks like data mining and information harvesting very difficult. In this paper, an information harvesting tool (heteroHarvest) is presented...... with objectives to address these problems by filtering the useful information and then normalizing the information in a singular non hypertext format. We also discuss state of the art tools along with the shortcomings and present the results of an analysis carried out over different heterogeneous formats along...

  11. TSUNAMI INFORMATION SOURCES PART 3

    Directory of Open Access Journals (Sweden)

    Robert L. Wiegel

    2009-01-01

    Full Text Available This is Part 3 of Tsunami Information Sources published by Robert L. Wiegel, as Technical Report UCB/HEL 2006-3 of the Hydraulic Engineering Laboratory of the Department of Civil & Environmental Engineering of the University of California at Berkeley. Part 3 is published in "SCIENCE OF TSUNAMI HAZARDS" -with the author's permission -so that it can receive wider distribution and use by the Tsunami Scientific Community.

  12. Sources of Error in Satellite Navigation Positioning

    Directory of Open Access Journals (Sweden)

    Jacek Januszewski

    2017-09-01

    Full Text Available An uninterrupted information about the user’s position can be obtained generally from satellite navigation system (SNS. At the time of this writing (January 2017 currently two global SNSs, GPS and GLONASS, are fully operational, two next, also global, Galileo and BeiDou are under construction. In each SNS the accuracy of the user’s position is affected by the three main factors: accuracy of each satellite position, accuracy of pseudorange measurement and satellite geometry. The user’s position error is a function of both the pseudorange error called UERE (User Equivalent Range Error and user/satellite geometry expressed by right Dilution Of Precision (DOP coefficient. This error is decomposed into two types of errors: the signal in space ranging error called URE (User Range Error and the user equipment error UEE. The detailed analyses of URE, UEE, UERE and DOP coefficients, and the changes of DOP coefficients in different days are presented in this paper.

  13. Advanced Light Source beam position monitor

    International Nuclear Information System (INIS)

    Hinkson, J.

    1991-01-01

    The Advanced Light Source (ALS) is a synchrotron radiation facility nearing completion at LBL. As a third-generation machine, the ALS is designed to produce intense light from bend magnets, wigglers, and undulators (insertion devices). The facility will include a 50 MeV electron linear accelerator, a 1.5 GeV booster synchrotron, beam transport lines, a 1--2 GeV storage ring, insertion devices, and photon beam lines. Currently, the beam injection systems are being commissioned, and the storage ring is being installed. Electron beam position monitors (BPM) are installed throughout the accelerator and constitute the major part of accelerator beam diagnostics. The design of the BPM instruments is complete, and 50 units have been constructed for use in the injector systems. We are currently fabricating 100 additional instruments for the storage ring. In this paper I discuss engineering fabrication, testing and performance of the beam pickup electrodes and the BPM electronics

  14. Investigation Of Information Sources And Communication Channels ...

    African Journals Online (AJOL)

    Investigation Of Information Sources And Communication Channels In Ipm Rice ... the information accessibility of farmer groups seems as empowerment strategy. ... information sources and communication channels, in order of importance, ...

  15. Methods for evaluating information sources

    DEFF Research Database (Denmark)

    Hjørland, Birger

    2012-01-01

    The article briefly presents and discusses 12 different approaches to the evaluation of information sources (for example a Wikipedia entry or a journal article): (1) the checklist approach; (2) classical peer review; (3) modified peer review; (4) evaluation based on examining the coverage...... of controversial views; (5) evidence-based evaluation; (6) comparative studies; (7) author credentials; (8) publisher reputation; (9) journal impact factor; (10) sponsoring: tracing the influence of economic, political, and ideological interests; (11) book reviews and book reviewing; and (12) broader criteria....... Reading a text is often not a simple process. All the methods discussed here are steps on the way on learning how to read, understand, and criticize texts. According to hermeneutics it involves the subjectivity of the reader, and that subjectivity is influenced, more or less, by different theoretical...

  16. TSUNAMI INFORMATION SOURCES PART 2

    Directory of Open Access Journals (Sweden)

    Robert L. Wiegel

    2006-01-01

    Full Text Available Tsunami Information Sources (Robert L. Wiegel, University of California, Berkeley, CA, UCB/HEL 2005-1, 14 December 2005, 115 pages, is available in printed format, and on a diskette. It is also available in electronic format at the Water Resources Center Archives, University of California, Berkeley, CA http:www.lib.berkeley.edu/WRCA/tsunamis.htmland in the International Journal of The Tsunami Society, Science of Tsunami Hazards (Vol. 24, No. 2, 2006, pp 58-171 at http://www.sthjournal.org/sth6.htm.This is Part 2 of the report. It has two components. They are: 1.(Sections A and B. Sources added since the first report, and corrections to a few listed in the first report. 2.(Sections C and D. References from both the first report and this report, listed in two categories:Section C. Planning and engineering design for tsunami mitigation/protection; adjustments to the hazard; damage to structures and infrastructureSection D. Tsunami propagation nearshore; induced oscillations; runup/inundation (flooding and drawdown.

  17. Positive emotion can protect against source memory impairment.

    Science.gov (United States)

    MacKenzie, Graham; Powell, Tim F; Donaldson, David I

    2015-01-01

    Despite widespread belief that memory is enhanced by emotion, evidence also suggests that emotion can impair memory. Here we test predictions inspired by object-based binding theory, which states that memory enhancement or impairment depends on the nature of the information to be retrieved. We investigated emotional memory in the context of source retrieval, using images of scenes that were negative, neutral or positive in valence. At study each scene was paired with a colour and during retrieval participants reported the source colour for recognised scenes. Critically, we isolated effects of valence by equating stimulus arousal across conditions. In Experiment 1 colour borders surrounded scenes at study: memory impairment was found for both negative and positive scenes. Experiment 2 used colours superimposed over scenes at study: valence affected source retrieval, with memory impairment for negative scenes only. These findings challenge current theories of emotional memory by showing that emotion can impair memory for both intrinsic and extrinsic source information, even when arousal is equated between emotional and neutral stimuli, and by dissociating the effects of positive and negative emotion on episodic memory retrieval.

  18. Devices for obtaining information about radiation sources

    International Nuclear Information System (INIS)

    Tosswill, C.H.

    1981-01-01

    The invention provides a sensitive, fast high-resolution device for obtaining information about the distribution of gamma and X-radiation sources and provides a radiation detector useful in such a device. It comprises a slit collimator with a multiplicity of slits each with slit-defining walls of material and thickness to absorb beam components impinging on them. The slits extend further in one direction than the other. The detector for separately detecting beam components passing through the slits also provides data output signals. It comprises a plurality of radiation transducing portions which are not photoconductor elements each at the end of a slit. A positioner operates to change the transverse position of the slits and radiation transducing portions relative to the source, wherein each radiation transducing element is positioned within its respective slit between the slit defining walls. Full details and preferred embodiments are given. (U.K.)

  19. Hollow cathode for positive ion sources

    International Nuclear Information System (INIS)

    Schechter, D.E.; Kim, J.; Tsai, C.C.

    1979-01-01

    Development to incorporate hollow cathodes into high power ion sources for neutral beam injection systems is being pursued. Hollow tube LaB 6 -type cathodes, similar to a UCLA design, have been constructed and tested in several ORNL ion source configurations. Results of testing include arc discharge parameters of >1000 and 500 amps for 0.5 and 10 second pulse lengths, respectively. Details of cathode construction and additional performance results are discussed

  20. Blind separation of positive sources by globally convergent gradient search.

    Science.gov (United States)

    Oja, Erkki; Plumbley, Mark

    2004-09-01

    The instantaneous noise-free linear mixing model in independent component analysis is largely a solved problem under the usual assumption of independent nongaussian sources and full column rank mixing matrix. However, with some prior information on the sources, like positivity, new analysis and perhaps simplified solution methods may yet become possible. In this letter, we consider the task of independent component analysis when the independent sources are known to be nonnegative and well grounded, which means that they have a nonzero pdf in the region of zero. It can be shown that in this case, the solution method is basically very simple: an orthogonal rotation of the whitened observation vector into nonnegative outputs will give a positive permutation of the original sources. We propose a cost function whose minimum coincides with nonnegativity and derive the gradient algorithm under the whitening constraint, under which the separating matrix is orthogonal. We further prove that in the Stiefel manifold of orthogonal matrices, the cost function is a Lyapunov function for the matrix gradient flow, implying global convergence. Thus, this algorithm is guaranteed to find the nonnegative well-grounded independent sources. The analysis is complemented by a numerical simulation, which illustrates the algorithm.

  1. Devices for obtaining information about radiation sources

    International Nuclear Information System (INIS)

    Tosswill, C.H.

    1981-01-01

    The invention provides a sensitive, fast, high-resolution device for obtaining information about the distribution of gamma and X-radiation sources and provides a radiation detector useful in such a device. It comprises a slit collimator with a multiplicity of slits each with slit-defining walls of material and thickness to absorb beam components impinging on them. The slits extend further in one transverse direction than the other. The detector for separately detecting beam components passing through the slits also provides data output signals. It comprises a plurality of radiation transducing portions, each at the end of a slit. A positioner changes the transverse position of the slits and radiation transducer (a photoconductor) relative to the source. Applications are in nuclear medicine and industry. Full details and preferred embodiments are given. (U.K.)

  2. Parents' opinions and sources of information on immunization in children

    Directory of Open Access Journals (Sweden)

    Agata Anna Salwa

    2017-07-01

    Conclusions. Despite their doubts about their effectiveness and safety, parents expressed their positive opinion about the use of immunization in children. Increase physician activation as they are the primary source of health information for parents.

  3. Engagement as a source of positive consumer behaviour: a study ...

    African Journals Online (AJOL)

    Engagement as a source of positive consumer behaviour: a study amongst South African football fans. ... Remember me ... Further, the potential of fan engagement as a predictor of positive consumer behaviours (match attendance and ...

  4. The Efficient Utilization of Open Source Information

    Energy Technology Data Exchange (ETDEWEB)

    Baty, Samuel R. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States). Intelligence and Systems Analysis

    2016-08-11

    These are a set of slides on the efficient utilization of open source information. Open source information consists of a vast set of information from a variety of sources. Not only does the quantity of open source information pose a problem, the quality of such information can hinder efforts. To show this, two case studies are mentioned: Iran and North Korea, in order to see how open source information can be utilized. The huge breadth and depth of open source information can complicate an analysis, especially because open information has no guarantee of accuracy. Open source information can provide key insights either directly or indirectly: looking at supporting factors (flow of scientists, products and waste from mines, government budgets, etc.); direct factors (statements, tests, deployments). Fundamentally, it is the independent verification of information that allows for a more complete picture to be formed. Overlapping sources allow for more precise bounds on times, weights, temperatures, yields or other issues of interest in order to determine capability. Ultimately, a "good" answer almost never comes from an individual, but rather requires the utilization of a wide range of skill sets held by a team of people.

  5. Environmental Information Sources on the Net.

    Science.gov (United States)

    Raeder, Aggi

    1997-01-01

    Discusses environmental information needs of business professionals and provides an annotated list of Web sites serving as information sources. Highlights include "meta sites", government, health, law, engineering, education, organizations, and environmental news, as well as selected environmental "hot topics." (AEF)

  6. Information sources and constraints under national agricultural ...

    African Journals Online (AJOL)

    Mo

    National Agricultural Advisory Services (NAADS), one of the seven pillars of the Plan for ... sources to target to PSPs while information quality assurance is lacking and/or haphazard. .... information centers (DATICs) and the technical audit team.

  7. Information Needs, Sources, and Information Seeking Behaviour of ...

    African Journals Online (AJOL)

    This work which focused on the policy-makers/administrators as information users was carried out using hundred (100) questionnaire in order to ascertain the information needs, sources and information seeking behaviour of the administrators. The barrier to information flow to them was also identified. The study adopted a ...

  8. Editorial Bias in Crowd-Sourced Political Information.

    Directory of Open Access Journals (Sweden)

    Joshua L Kalla

    Full Text Available The Internet has dramatically expanded citizens' access to and ability to engage with political information. On many websites, any user can contribute and edit "crowd-sourced" information about important political figures. One of the most prominent examples of crowd-sourced information on the Internet is Wikipedia, a free and open encyclopedia created and edited entirely by users, and one of the world's most accessed websites. While previous studies of crowd-sourced information platforms have found them to be accurate, few have considered biases in what kinds of information are included. We report the results of four randomized field experiments that sought to explore what biases exist in the political articles of this collaborative website. By randomly assigning factually true but either positive or negative and cited or uncited information to the Wikipedia pages of U.S. senators, we uncover substantial evidence of an editorial bias toward positivity on Wikipedia: Negative facts are 36% more likely to be removed by Wikipedia editors than positive facts within 12 hours and 29% more likely within 3 days. Although citations substantially increase an edit's survival time, the editorial bias toward positivity is not eliminated by inclusion of a citation. We replicate this study on the Wikipedia pages of deceased as well as recently retired but living senators and find no evidence of an editorial bias in either. Our results demonstrate that crowd-sourced information is subject to an editorial bias that favors the politically active.

  9. Editorial Bias in Crowd-Sourced Political Information.

    Science.gov (United States)

    Kalla, Joshua L; Aronow, Peter M

    2015-01-01

    The Internet has dramatically expanded citizens' access to and ability to engage with political information. On many websites, any user can contribute and edit "crowd-sourced" information about important political figures. One of the most prominent examples of crowd-sourced information on the Internet is Wikipedia, a free and open encyclopedia created and edited entirely by users, and one of the world's most accessed websites. While previous studies of crowd-sourced information platforms have found them to be accurate, few have considered biases in what kinds of information are included. We report the results of four randomized field experiments that sought to explore what biases exist in the political articles of this collaborative website. By randomly assigning factually true but either positive or negative and cited or uncited information to the Wikipedia pages of U.S. senators, we uncover substantial evidence of an editorial bias toward positivity on Wikipedia: Negative facts are 36% more likely to be removed by Wikipedia editors than positive facts within 12 hours and 29% more likely within 3 days. Although citations substantially increase an edit's survival time, the editorial bias toward positivity is not eliminated by inclusion of a citation. We replicate this study on the Wikipedia pages of deceased as well as recently retired but living senators and find no evidence of an editorial bias in either. Our results demonstrate that crowd-sourced information is subject to an editorial bias that favors the politically active.

  10. Investigation Of Information Sources And Communication Channels ...

    African Journals Online (AJOL)

    Extension of integrated pest management (IPM) as a component of sustainable agricultural development, involves empowering farmers. Facilitating the information accessibility of farmer groups seems as empowerment strategy. This strategy is based on identification of related patterns, including information sources and ...

  11. information source accessibility and usage as determinants

    African Journals Online (AJOL)

    UDS-CAPTURED

    1990-04-28

    Apr 28, 1990 ... accessibility and business performance of the community banks over a six-year period. The ... relationship with the banks' business performance. ..... Marketing Management ... Effects of the Information on the Business Performance of Banks. ..... 'Information sources used for strategic planning decisions.

  12. Supplemental Information Source Document Waste Management

    Energy Technology Data Exchange (ETDEWEB)

    Wood, Craig [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Halpern, Jonathan [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Wrons, Ralph [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Reiser, Anita [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Mond, Michael du [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Shain, Matthew [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

    2014-12-01

    This Supplemental Information Source Document for Waste Management was prepared in support of future analyses including those that may be performed as part of the Sandia National Laboratories, New Mexico (SNL/NM) Site-Wide Environmental Impact Statement. This document presents information about waste management practices at SNL/NM, including definitions, inventory data, and an overview of current activities.

  13. How Do Qataris Source Health Information?

    Directory of Open Access Journals (Sweden)

    Sopna M Choudhury

    Full Text Available Qatar is experiencing rapid population expansion with increasing demands on healthcare services for both acute and chronic conditions. Sourcing accurate information about health conditions is crucial, yet the methods used for sourcing health information in Qatar are currently unknown. Gaining a better understanding of the sources the Qatari population use to recognize and manage health and/or disease will help to develop strategies to educate individuals about existing and emerging health problems.To investigate the methods used by the Qatari population to source health information. We hypothesized that the Internet would be a key service used to access health information by the Qatari population.A researcher-led questionnaire was used to collect information from Qatari adults, aged 18-85 years. Participants were approached in shopping centers and public places in Doha, the capital city of Qatar. The questionnaire was used to ascertain information concerning demographics, health status, and utilization of health care services during the past year as well as sources of health information used.Data from a total of 394 eligible participants were included. The Internet was widely used for seeking health information among the Qatari population (71.1%. A greater proportion of Qatari females (78.7% reported searching for health-related information using the Internet compared to Qatari males (60.8%. Other commonly used sources were family and friends (37.8% and Primary Health Care Centers (31.2%. Google was the most commonly used search engine (94.8%. Gender, age and education levels were all significant predictors of Internet use for heath information (P<0.001 for all predictors. Females were 2.9 times more likely than males (P<0.001 and people educated to university or college level were 3.03 times more likely (P<0.001 to use the Internet for heath information.The Internet is a widely used source to obtain health-related information by the Qatari

  14. Adolescent sexuality education and sources of information.

    Science.gov (United States)

    Maitra, N; Baxi, R K; Hazra, M

    1994-01-01

    A survey of 959 young females (ages 10-21 years) from India highlighted the importance of educational attainment to fertility-related behaviors. Respondents represented a spectrum of educational levels: school drop-outs (32%), primary and secondary school attendees (41%), and college students (27%). The mean age at menarche was 13.6 years. School drop-outs were most likely to have obtained information about sexuality from films and other mass media, while students cited friends and neighbors as primary sources. There was an positive association between educational level and both preferred age at marriage and intended interval from marriage to first birth. 42% of adolescents with a secondary or college education planned to marry after 23 years of age and 84% wanted to defer childbearing for at least two years after marriage. The desire for formal sex education was strong in all educational subgroups (about 62%), however. It has been estimated that postponement of the marriage age from 16 years to 20-21 years would result in a 20-30% decrease in the annual number of births in India. School-based sex education represents a feasible mechanism for helping to achieve this goal.

  15. Annual seminar on electronic sources of information

    International Nuclear Information System (INIS)

    Ravichandra Rao, I.K.

    2000-03-01

    With the rapid development in IT and the emergence of Internet, a multitude of information sources are now available on electronic media. They include e-journals and other electronic publications - online databases, reference documents, newspapers, magazines, etc. In addition to these online sources, there are thousands of CD-ROM databases. The CD-ROM databases and the online sources are collectively referred to as electronic sources of information. Libraries in no part of the world can afford to ignore these sources. Emergence of these new sources has resulted into a change in the traditional library functions including collection development, acquisitions, cataloguing, user instructions, etc. It is inevitable that in the next five to ten years, special libraries may have to allocate considerable amount towards subscription of e-journals and other e-publications. The papers in this seminar volume discuss several aspects related the theme of the seminar and cover e-journals, different sources available in the Net, classification of electronic sources, online public access catalogues, and different aspects of Internet. Papers relevant to INIS are indexed separately

  16. ERP correlates of source memory: unitized source information increases familiarity-based retrieval.

    Science.gov (United States)

    Diana, Rachel A; Van den Boom, Wijnand; Yonelinas, Andrew P; Ranganath, Charan

    2011-01-07

    Source memory tests typically require subjects to make decisions about the context in which an item was encoded and are thought to depend on recollection of details from the study episode. Although it is generally believed that familiarity does not contribute to source memory, recent behavioral studies have suggested that familiarity may also support source recognition when item and source information are integrated, or "unitized," during study (Diana, Yonelinas, and Ranganath, 2008). However, an alternative explanation of these behavioral findings is that unitization affects the manner in which recollection contributes to performance, rather than increasing familiarity-based source memory. To discriminate between these possibilities, we conducted an event-related potential (ERP) study testing the hypothesis that unitization increases the contribution of familiarity to source recognition. Participants studied associations between words and background colors using tasks that either encouraged or discouraged unitization. ERPs were recorded during a source memory test for background color. The results revealed two distinct neural correlates of source recognition: a frontally distributed positivity that was associated with familiarity-based source memory in the high-unitization condition only and a parietally distributed positivity that was associated with recollection-based source memory in both the high- and low-unitization conditions. The ERP and behavioral findings provide converging evidence for the idea that familiarity can contribute to source recognition, particularly when source information is encoded as an item detail. Copyright © 2010 Elsevier B.V. All rights reserved.

  17. System and method for acquisition management of subject position information

    Science.gov (United States)

    Carrender, Curt

    2005-12-13

    A system and method for acquisition management of subject position information that utilizes radio frequency identification (RF ID) to store position information in position tags. Tag programmers receive position information from external positioning systems, such as the Global Positioning System (GPS), from manual inputs, such as keypads, or other tag programmers. The tag programmers program each position tag with the received position information. Both the tag programmers and the position tags can be portable or fixed. Implementations include portable tag programmers and fixed position tags for subject position guidance, and portable tag programmers for collection sample labeling. Other implementations include fixed tag programmers and portable position tags for subject route recordation. Position tags can contain other associated information such as destination address of an affixed subject for subject routing.

  18. System and method for acquisition management of subject position information

    Energy Technology Data Exchange (ETDEWEB)

    Carrender, Curt [Morgan Hill, CA

    2007-01-23

    A system and method for acquisition management of subject position information that utilizes radio frequency identification (RF ID) to store position information in position tags. Tag programmers receive position information from external positioning systems, such as the Global Positioning System (GPS), from manual inputs, such as keypads, or other tag programmers. The tag programmers program each position tag with the received position information. Both the tag programmers and the position tags can be portable or fixed. Implementations include portable tag programmers and fixed position tags for subject position guidance, and portable tag programmers for collection sample labeling. Other implementations include fixed tag programmers and portable position tags for subject route recordation. Position tags can contain other associated information such as destination address of an affixed subject for subject routing.

  19. Orthodontic informed consent considering information load and serial position effect.

    Science.gov (United States)

    Pawlak, Caroline E; Fields, Henry W; Beck, F Michael; Firestone, Allen R

    2015-03-01

    Previous research has demonstrated that current methods of informed consent are relatively ineffective as shown by poor recall and comprehension by adolescent patients and their parents. The purpose of this study was to determine whether adding a short videotape presentation reiterating the issues related to informed consent to a modified informed consent document that emphasizes a limited number of core and patient-specific custom "chunks" at the beginning of an informed consent presentation improved the recall and comprehension of the risks, benefits, and alternatives of orthodontic treatment. A second objective was to evaluate the current related data for recommendable practices. Seventy patient-parent pairs were randomly divided into 2 groups. The intervention group (group A) patients and parents together reviewed a customized slide show and a short videotape presentation describing the key risks of orthodontic treatment. Group B followed the same protocol without viewing the videotape. All patients and parents were interviewed independently by research assistants using an established measurement tool with open-ended questions. Interviews were transcribed and scored for the appropriateness of responses using a previously established codebook. Lastly, the patients and parents were given 2 reading literacy tests, 1 related to health and 1 with general content followed by the self-administered demographic and psychological state questionnaires. There were no significant differences between the groups for sociodemographic variables. There were no significant differences between the groups for overall recall and comprehension; recall and comprehension for the domains of treatment, risk, and responsibility; and recall and comprehension for core, general, and custom items. The positional effects were limited in impact. When compared with previous studies, these data further demonstrate the benefit of improved readability and audiovisual supplementation with the

  20. Beam position monitor data acquisition for the Advanced Photon Source

    International Nuclear Information System (INIS)

    Lenkszus, F.R.; Kahana, E.; Votaw, A.J.; Decker, G.A.; Chung, Y.; Ciarlette, D.J.; Laird, R.J.

    1993-01-01

    This paper describes the Beam Position Monitor (BPM) data acquisition scheme for the Advanced Photon Source (APS) storage ring. The storage ring contains 360 beam position monitors distributed around its 1104-meter circumference. The beam position monitor data acquisition system is capable of making turn-by-turn measurements of all BPMs simultaneously. It is VXI-based with each VXI crate containing the electronics for 9 BPMS. The VXI Local Bus is used to provide sustained data transfer rates of up to 13 mega-transfers per second to a scanner module. The system provides single-bunch tracking, bunch-to-bunch measurements, fast digital-averaged positions, beam position history buffering, and synchronized multi-turn measurements. Data is accessible to the control system VME crates via an MXI bus. Dedicated high-speed ports are provided to supply position data to beam orbit feedback systems

  1. Informal sources of supervision in clinical training.

    Science.gov (United States)

    Farber, Barry A; Hazanov, Valery

    2014-11-01

    Although formal, assigned supervision is a potent source of learning and guidance for psychotherapy trainees, many beginning psychotherapists use other, informal sources of supervision or consultation for advice and support. Results of an online survey of beginning trainees (N = 146) indicate that other than their formally assigned supervisor, trainees most often consult with colleagues in their program, their own psychotherapist, and their significant other; that they're most likely to seek these other sources of help when they're feeling stuck or feel they've made a clinical mistake; that they do so because they need extra reassurance and suggestions; that they feel the advice given from these sources is helpful; and that they don't especially regret sharing this information. Several case examples are used to illustrate these points. Discussing clinical material with informal sources is, apparently, a great deal more common than typically acknowledged, and as such, has implications for training programs (including discussions of ethics) and formal supervision. © 2014 Wiley Periodicals, Inc.

  2. DKIE: Open Source Information Extraction for Danish

    DEFF Research Database (Denmark)

    Derczynski, Leon; Field, Camilla Vilhelmsen; Bøgh, Kenneth Sejdenfaden

    2014-01-01

    Danish is a major Scandinavian language spoken daily by around six million people. However, it lacks a unified, open set of NLP tools. This demonstration will introduce DKIE, an extensible open-source toolkit for processing Danish text. We implement an information extraction architecture for Danish...

  3. Crime analysis using open source information

    DEFF Research Database (Denmark)

    Nizamani, Sarwat; Memon, Nasrullah; Shah, Azhar Ali

    2015-01-01

    In this paper, we present a method of crime analysis from open source information. We employed un-supervised methods of data mining to explore the facts regarding the crimes of an area of interest. The analysis is based on well known clustering and association techniques. The results show...

  4. The importance of source positions during radio fine structure observations

    International Nuclear Information System (INIS)

    Chernov, Guennadi P.; Yan Yi-Hua; Fu Qi-Jun

    2014-01-01

    The measurement of positions and sizes of radio sources in the observations of the fine structure of solar radio bursts is a determining factor for the selection of the radio emission mechanism. The identical parameters describing the radio sources for zebra structures (ZSs) and fiber bursts confirm there is a common mechanism for both structures. It is very important to measure the size of the source in the corona to determine if it is distributed along the height or if it is point-like. In both models of ZSs (the double plasma resonance (DPR) and the whistler model) the source must be distributed along the height, but by contrast to the stationary source in the DPR model, in the whistler model the source should be moving. Moreover, the direction of the space drift of the radio source must correlate with the frequency drift of stripes in the dynamic spectrum. Some models of ZSs require a local source, for example, the models based on the Bernstein modes, or on explosive instability. The selection of the radio emission mechanism for fast broadband pulsations with millisecond duration also depends on the parameters of their radio sources. (mini-volume: solar radiophysics — recent results on observations and theories)

  5. Source position error influence on industry CT image quality

    International Nuclear Information System (INIS)

    Cong Peng; Li Zhipeng; Wu Haifeng

    2004-01-01

    Based on the emulational exercise, the influence of source position error on industry CT (ICT) image quality was studied and the valuable parameters were obtained for the design of ICT. The vivid container CT image was also acquired from the CT testing system. (authors)

  6. Parameters estimation for X-ray sources: positions

    International Nuclear Information System (INIS)

    Avni, Y.

    1977-01-01

    It is shown that the sizes of the positional error boxes for x-ray sources can be determined by using an estimation method which we have previously formulated generally and applied in spectral analyses. It is explained how this method can be used by scanning x-ray telescopes, by rotating modulation collimators, and by HEAO-A (author)

  7. Navigation with ECDIS: Choosing the Proper Secondary Positioning Source

    Directory of Open Access Journals (Sweden)

    D. Brčic

    2015-09-01

    Full Text Available The completion of ECDIS mandatory implementation period on-board SOLAS vessels requires certain operational, functional and educational gaping holes to be solved. It especially refers to positioning and its redundancy, which represents fundamental safety factor on-board navigating vessels. The proposed paper deals with primary and secondary positioning used in ECDIS system. Standard positioning methods are described, discussing possibilities of obtained positions’ automatic and manual implementation in ECDIS, beside default methods. With the aim of emphasizing the need and importance of using secondary positioning source in ECDIS, positioning issue from the standpoint of end-users was elaborated, representing a practical feedback of elaborated topic. The survey was conducted in the form of international questionnaire placed among OOWs, ranging from apprentice officers to captains. The result answers and discussion regarding (nonusage of secondary positioning sources in ECDIS were analysed and presented. Answers and statements were elaborated focusing not only in usage of the secondary positioning system in ECDIS, but in navigation in general. The study revealed potential risks arising from the lack of knowledge and even negligence. The paper concludes with summary of findings related to discrepancies between theoretical background, good seamanship practice and real actions taken by OOWs. Further research activities are pointed out, together with planned practical actions in raising awareness regarding navigation with ECDIS.

  8. A positive (negative) surface ionization source concept for RIB generation

    International Nuclear Information System (INIS)

    Alton, G.D.; Mills, G.D.

    1995-01-01

    A novel, versatile, new concept, spherical-geometry, positive (negative) surface-ionization source has been designed and fabricated which will have the capability of generating both positive- and negative-ion beams without mechanical changes to the source. The source utilizes a highly permeable, high-work-function Ir ionizer (φ∼ = 5.29 eV) for ionizing highly electropositive atoms/molecules; while for negative-surface ionization, the work function is lowered to φ ∼ = 1.43 eV by continually feeding cesium vapor through the ionizer matrix. The use of Cs to effect low work function surfaces for negative ion beam generation has the potential of overcoming the chronic poisoning effects experienced with LaB 6 while enhancing the probability for negative ion formation of atomic and molecular species with low to intermediate electron affinities. The flexibility of operation in either mode makes it especially attractive for RIB applications and, therefore, the source will be used as a complementary replacement for the high-temperature electron impact ionization sources presently in use at the HRIBF The design features and operational principles of the source will be described in this report

  9. Exploring the Power of Heterogeneous Information Sources

    Science.gov (United States)

    2011-01-01

    set of movies derived from two information sources: movie genres and users. The genre information may indicate that two movies that are “ animations ...are more similar than two movies one of which is an “ animation ” and one of which is a “romance” movie. Similarly, movies watched by the same set of...grown- ups ’ ’ ’ ’ ’ ’ ’ X1-The Lion King; X2-Toy Story; X3-Kungfu Panda ; X4-Wall-E; X5-Casablanca; X6-Titanic; X7-The Notebook kids Figure 6.2: A

  10. DESIGNS MATTER: Delivering Information Sources for Tourism

    Directory of Open Access Journals (Sweden)

    Margie A. Nolasco

    2016-11-01

    Full Text Available Tourism has benefits not just for travelers, but also to the local economy. Since, Bicol Region has natural and cultural attractions; it is a potential travel destination in the country. Technology in delivering information sources played vital role for the success of the tourism industry in the Region. This allows travel enthusiasts to get more information about various tourist attractions. This paper analyzes the effectiveness of delivering information sources such as web advertisement and desktop publishing for tourist promotion in the Bicol Region. Specifically, it determined the status of tourism, and identified common forms of promotions for tourism development. The study adopted mixed method of research. This method was utilized to confirm and validate findings. Interviews and focus group discussions were used to gather data from the respondents of the selected Local Government Units, Department of Tourism, Travel Agencies and Hotel Agents in the Region. Based on the findings, of the total foreign visitors in the country, only 9.14% visited Bicol Region in 2014. That is why, domestic tourist showed high percentage against foreign visitors with 25.7%. Brochures with EZ maps as most commonly used desktop publishing materials and websites and social media for web advertisement. Thus, there is a need to reevaluate promotional activities by the DOT and other agencies. Adoption suggestive features for creative desktop publishing materials and web services should be considered to increase tourist visitors in the Region.

  11. Sources of information on medical geography.

    Science.gov (United States)

    Mullins, L S

    1966-07-01

    Adequate research in the peripheral field of medical geography requires familiarity with the literature of medicine, geography, and other environmentally oriented fields. The pertinent literature of the two primary disciplines, as well as that of anthropology, nutrition, and human bioclimatology, is surveyed from a bibliographical point of view. A brief review of historical sources is presented, followed by a discussion of the contemporary organizations, both international and national, active in the field. Emphasis is placed on the publishing programs and projects, maps, atlases, symposia, reports, and other literature sponsored or stimulated by these organizations. Regional bibliographical surveys for East Africa, India, and the Soviet Union are also noted. Pertinent aspects of bibliographies, indexes, abstracts, library card catalogs and accession lists, and other resources are listed, with emphasis on the various subject headings and other approaches to them. Throughout, the sources of information are approached from a multidisciplinary and interdisciplinary viewpoint.

  12. Note: Development of ESS Bilbao's proton ion source: Ion Source Hydrogen Positive

    International Nuclear Information System (INIS)

    Miracoli, R.; Feuchtwanger, J.; Arredondo, I.; Belver, D.; Gonzalez, P. J.; Corres, J.; Djekic, S.; Echevarria, P.; Eguiraun, M.; Garmendia, N.; Muguira, L.

    2014-01-01

    The Ion Source Hydrogen positive is a 2.7 GHz off-resonance microwave discharge ion source. It uses four coils to generate an axial magnetic field in the plasma chamber around 0.1 T that exceeds the ECR resonance field. A new magnetic system was designed as a combination of the four coils and soft iron in order to increase the reliability of the source. The description of the simulations of the magnetic field and the comparison with the magnetic measurements are presented. Moreover, results of the initial commissioning of the source for extraction voltage until 50 kV will be reported

  13. Sharing information among existing data sources

    Science.gov (United States)

    Ashley, W. R., III

    1999-01-01

    share crucial investigative information across jurisdictional bounds by establishing a communications infrastructure for all of its law enforcement jurisdictions. The Criminal Justice Network (CJ-Net) is a statewide TCP/IP network, dedicated to the sharing of law enforcement information. CJ-Net is managed and maintained by the Florida Department of Law Enforcement (FDLE) and provides open access and privileges to any criminal justice agency, including the state court and penitentiary systems. In addition to Florida, other states, such as North Carolina, are also beginning to implement common protocol communication infrastructures and architectures in order to link local jurisdictions together throughout the state. The law enforcement domain in an optimum situation for information-sharing technologies. Communication infrastructures are continually established, and as such, action is required to effectively use these networks to their full potential. Information technologies that are best suited for the law enforcement domain, must be evaluated and implemented in a cost-effective manner. Unlike the Defense Department and other large federal agencies, individual jurisdictions at both the local and state level cannot afford to expend limited resources on research and development of prototype systems. Therefore, we must identify enabling technologies that have matured in related domains and transition them into law enforcement at a minimum cost. Crucial to this measure, is the selection of the appropriate levels of information-sharing technologies to be inserted. Information-sharing technologies that are unproven or have extensive recurring costs are not suitable for this domain. Information-sharing technologies traditionally exist between two distinct polar bounds: the data warehousing approach and mediation across distributed heterogeneous data sources. These two ends of the spectrum represent extremely different philosophies in accomplishing the same goal. In the

  14. Beam position feedback system for the advanced photon source

    International Nuclear Information System (INIS)

    Chung, Y.

    1994-01-01

    The Advanced Photon Source (APS) will implement both global and local beam position feedback systems to stabilize the particle and x-ray beams for the storage ring. The systems consist of 20 VME crates distributed around the ring, each running multiple digital signal processors (DSP) running at 4 kHz sampling rate with a proportional, integral, and derivative (PID) control algorithm. The particle and x-ray beam position data is shared by the distributed processors through networked reflective memory. A theory of closed orbit correction using the technique of singular value decomposition (SVD) of the response matrix and simulation of its application to the APS storage ring will be discussed. This technique combines the global and local feedback systems and resolves the conflict among multiple local feedback systems due to local bump closure error. Maximum correction efficiency is achieved by feeding back to the global orbit data to the local feedback systems. The effect of the eddy current induced in the relatively thick (1/2 in.) vacuum chamber by the ac corrector magnet field for local feedback systems is compensated by digital filters. Results of experiments conducted on the x-ray ring of the National Synchrotron Light Source and the SPEAR at Stanford Synchrotron Radiation Laboratory will also be presented

  15. Beam position feedback system for the advanced photon source

    International Nuclear Information System (INIS)

    Chung, Y.

    1994-01-01

    The Advanced Photon Source (APS) will implement both global and local beam position feedback systems to stabilize the particle and X-ray beams for the storage ring. The systems consist of 20 VME crates distributed around the ring, each running multiple digital signal processors (DSP) running at 4 kHz sampling rate with a proportional, integral, and derivative (PID) control algorithm. The particle and X-ray beam position data is shared by the distributed processors through networked reflective memory. A theory of closed orbit correction using the technique of singular value decomposition (SVD) of the response matrix and simulation of its application to the APS storage ring will be discussed. This technique combines the global and local feedback systems and resolves the conflict among multiple local feedback systems due to local bump closure error. Maximum correction efficiency is achieved by feeding back the global orbit data to the local feedback systems. The effect of the vacuum chamber eddy current induced by the AC corrector magnet field for local feedback systems is compensated by digital filters. Results of experiments conducted on the X-ray ring of the National Synchrotron Light Source and the SPEAR at Stanford Synchrotron Radiation Laboratory will be presented. copyright 1994 American Institute of Physics

  16. Beam position feedback system for the Advanced Photon Source

    International Nuclear Information System (INIS)

    Chung, Y.

    1993-01-01

    The Advanced Photon Source (APS) will implement both global and local beam position feedback systems to stabilize the particle and X-ray beams for the storage ring. The systems consist of 20 VME crates distributed around the ring, each running multiple digital signal processors (DSP) running at 4kHz sampling rate with a proportional, integral, and derivative (PID) control algorithm. The particle and X-ray beam position data is shared by the distributed processors through networked reflective memory. A theory of closed orbit correction using the technique of singular value decomposition (SVD) of the response matrix and simulation of its application to the APS storage ring will be discussed. This technique combines the global and local feedback systems and resolves the conflict among multiple local feedback systems due to local bump closure error. Maximum correction efficiency is achieved by feeding back the global orbit data to the local feedback systems. The effect of the vacuum chamber eddy current induced by the AC corrector magnet field for local feedback systems is compensated by digital filters. Results of experiments conducted on the X-ray ring of the National Synchrotron Light Source and the SPEAR at Stanford Synchrotron Radiation Laboratory will be presented

  17. Beam position feedback system for the Advanced Photon Source

    International Nuclear Information System (INIS)

    Chung, Y.

    1993-01-01

    The Advanced Photon Source (APS) will implement both global and local beam position feedback systems to stabilize the particle and X-ray beams for the storage ring. The systems consist of 20 VME crates distributed around the ring, each running multiple digital signal processors (DSP) running at 4kHz sampling rate with a proportional, integral, and derivative (PID) control algorithm. The particle and X-ray beam position data is shared by the distributed processors through networked reflective memory. A theory of closed orbit correction using the technique of singular value decomposition (SVD) of the response matrix and simulation of its application to the APS storage ring will be discussed. This technique combines the global and local feedback systems and resolves the conflict among multiple local feedback systems due to local bump closure error. Maximum correction efficiency is achieved by feeding back the global orbit data to the local feedback systems. The effect of the eddy current induced in the relatively thick (1/2 inch) vacuum chamber by the AC corrector magnet field for local feedback systems is compensated by digital filters. Results of experiments conducted on the X-ray ring of the National Synchrotron Light Source and the SPEAR at Stanford Synchrotron Radiation Laboratory will also be presented

  18. Peak Source Power Associated with Positive Narrow Bipolar Lightning Pulses

    Science.gov (United States)

    Bandara, S. A.; Marshall, T. C.; Karunarathne, S.; Karunarathne, N. D.; Siedlecki, R. D., II; Stolzenburg, M.

    2017-12-01

    During the summer of 2016, we deployed a lightning sensor array in and around Oxford Mississippi, USA. The array system comprised seven lightning sensing stations in a network approximately covering an area of 30 km × 30 km. Each station is equipped with four sensors: Fast antenna (10 ms decay time), Slow antenna (1.0 s decay time)), field derivative sensor (dE/dt) and Log-RF antenna (bandwidth 187-192 MHz). We have observed 319 Positive NBPs and herein we report on comparisons of the NBP properties measured from the Fast antenna data with the Log-RF antenna data. These properties include 10-90% rise time, full width at half maximum, zero cross time, and range-normalized amplitude at 100 km. NBPs were categorized according to the fine structure of the electric field wave shapes into Types A-D, as in Karunarathne et al. [2015]. The source powers of NBPs in each category were determined using single station Log-RF data. Furthermore, we also categorized the NBPs in three other groups: initial event of an IC flash, isolated, and not-isolated (according to their spatiotemporal relationship with other lightning activity). We compared the source powers within each category. Karunarathne, S., T. C. Marshall, M. Stolzenburg, and N. Karunarathna (2015), Observations of positive narrow bipolar pulses, J. Geophys. Res. Atmos., 120, doi:10.1002/2015JD023150.

  19. Position paper: Web tutorials and Information Literacy research

    DEFF Research Database (Denmark)

    Hyldegård, Jette

    2011-01-01

    Position paper on future research challenges regarding web tutorials with the aim of supporting and facilitating Information Literacy in an academic context. Presented and discussed at the workshop: Social media & Information Practices, track on Information literacy practices, University of Borås...

  20. Characteristics of the positive ion source at reduced gas feed

    Energy Technology Data Exchange (ETDEWEB)

    Sharma, S. K., E-mail: sksharma@ipr.res.in; Bharathi, P.; Prahlad, V.; Patel, P. J.; Choksi, B.; Jana, M. R.; Bansal, L. K.; Qureshi, K.; Sumod, C. B.; Vadher, V.; Thakkar, D.; Gupta, L. N.; Rambabu, S.; Parmar, S.; Contractor, N.; Sahu, A. K.; Pandya, B.; Sridhar, B.; Pandya, S.; Baruah, U. K. [Institute for Plasma Research, Bhat, Gandhinagar (India)

    2014-11-15

    The neutral beam injector of steady state superconducting tokamak (SST1-NBI) at IPR is designed for injecting upto 1.7 MW of neutral beam (Hº, 30–55 keV) power to the tokamak plasma for heating and current drive. Operations of the positive ion source (PINI or Plug-In-Neutral-Injector) of SST1-NBI were carried out on the NBI test stand. The PINI was operated at reduced gas feed rate of 2–3 Torr l/s, without using the high speed cryo pumps. Experiments were conducted to achieve a stable beam extraction by optimizing operational parameters namely, the arc current (120–300 A), acceleration voltage (16–40 kV), and a suitable control sequence. The beam divergence, power density profiles, and species fractions (H{sup +}:H{sub 2}{sup +}:H{sub 3}{sup +}) were measured by using the diagnostics such as thermal calorimetry, infrared thermography, and Doppler shift spectroscopy. The maximum extracted beam current was about 18 A. A further increase of beam current was found to be limited by the amount of gas feed rate to the ion source.

  1. U.S. and Japanese Source Reliance for Environmental Information.

    Science.gov (United States)

    Pierce, John C.; And Others

    1988-01-01

    Examines environmental information source reliance among American and Japanese citizens. Finds that the Japanese are inclined to rely on non-mass media sources, whereas Americans exhibit greater differentiation among sources. (RS)

  2. Pesticide Information Sources in the United States.

    Science.gov (United States)

    Alston, Patricia Gayle

    1992-01-01

    Presents an overview of electronic and published sources on pesticides. Includes sources such as databases, CD-ROMs, books, journals, brochures, pamphlets, fact sheets, hotlines, courses, electronic mail, and electronic bulletin boards. (MCO)

  3. Selecting and Using Information Sources: Source Preferences and Information Pathways of Israeli Library and Information Science Students

    Science.gov (United States)

    Bronstein, Jenny

    2010-01-01

    Introduction: The study investigated the source preference criteria of library and information science students for their academic and personal information needs. Method: The empirical study was based on two methods of data collection. Eighteen participants wrote a personal diary for four months in which they recorded search episodes and answered…

  4. Smooth Rényi Entropy of Ergodic Quantum Information Sources

    NARCIS (Netherlands)

    Schoenmakers, Berry; Tjoelker, Jilles; Tuyls, Pim; Verbitskiy, Evgeny

    2007-01-01

    We investigate the recently introduced notion of smooth Rényi entropy for the case of ergodic information sources, thereby generalizing previous work which concentrated mainly on i.i.d. information sources. We will actually consider ergodic quantum information sources, of which ergodic classical

  5. Smooth Rényi entropy of ergodic quantum information sources

    NARCIS (Netherlands)

    Schoenmakers, B.; Tjoelker, J.; Tuyls, P.T.; Verbitskiy, E.A.

    2007-01-01

    We investigate the recently introduced notion of smooth Rényi entropy for the case of ergodic information sources, thereby generalizing previous work which concentrated mainly on i.i.d. information sources. We will actually consider ergodic quantum information sources, of which ergodic classical

  6. Marketing for Special Libraries and Information Centers: The Positioning Process.

    Science.gov (United States)

    Sterngold, Arthur

    1982-01-01

    The positioning process of marketing used by special libraries and information centers involves two key decisions from which other decisions are derived: to which user groups marketing programs and services will be directed; and which information needs will be served. Two cases are discussed and a bibliography is provided. (EJS)

  7. Gender and Information Literacy: Evaluation of Gender Differences in a Student Survey of Information Sources

    Science.gov (United States)

    Taylor, Arthur; Dalal, Heather A.

    2017-01-01

    Information literacy studies have shown that college students use a variety of information sources to perform research and commonly choose Internet sources over traditional library sources. Studies have also shown that students do not appear to understand the information quality issues concerning Internet information sources and may lack the…

  8. Source position verification and dosimetry in HDR brachytherapy using an EPID

    International Nuclear Information System (INIS)

    Smith, R. L.; Taylor, M. L.; McDermott, L. N.; Franich, R. D.; Haworth, A.; Millar, J. L.

    2013-01-01

    Purpose: Accurate treatment delivery in high dose rate (HDR) brachytherapy requires correct source dwell positions and dwell times to be administered relative to each other and to the surrounding anatomy. Treatment delivery inaccuracies predominantly occur for two reasons: (i) anatomical movement or (ii) as a result of human errors that are usually related to incorrect implementation of the planned treatment. Electronic portal imaging devices (EPIDs) were originally developed for patient position verification in external beam radiotherapy and their application has been extended to provide dosimetric information. The authors have characterized the response of an EPID for use with an 192 Ir brachytherapy source to demonstrate its use as a verification device, providing both source position and dosimetric information.Methods: Characterization of the EPID response using an 192 Ir brachytherapy source included investigations of reproducibility, linearity with dose rate, photon energy dependence, and charge build-up effects associated with exposure time and image acquisition time. Source position resolution in three dimensions was determined. To illustrate treatment verification, a simple treatment plan was delivered to a phantom and the measured EPID dose distribution compared with the planned dose.Results: The mean absolute source position error in the plane parallel to the EPID, for dwells measured at 50, 100, and 150 mm source to detector distances (SDD), was determined to be 0.26 mm. The resolution of the z coordinate (perpendicular distance from detector plane) is SDD dependent with 95% confidence intervals of ±0.1, ±0.5, and ±2.0 mm at SDDs of 50, 100, and 150 mm, respectively. The response of the EPID is highly linear to dose rate. The EPID exhibits an over-response to low energy incident photons and this nonlinearity is incorporated into the dose calibration procedure. A distance (spectral) dependent dose rate calibration procedure has been developed. The

  9. Funding source, conflict of interest and positive conclusions in neuro-oncology clinical trials.

    Science.gov (United States)

    Moraes, Fabio Y; Mendez, Lucas C; Taunk, Neil K; Raman, Srinivas; Suh, John H; Souhami, Luis; Slotman, Ben; Weltman, Eduardo; Spratt, Daniel E; Berlin, Alejandro; Marta, Gustavo N

    2018-02-01

    We aimed to test any association between authors' conclusions and self-reported COI or funding sources in central nervous system (CNS) studies. A review was performed for CNS malignancy clinical trials published in the last 5 years. Two investigators independently classified study conclusions according to authors' endorsement of the experimental therapy. Statistical models were used to test for associations between positive conclusions and trials characteristics. From February 2010 to February 2015, 1256 articles were retrieved; 319 were considered eligible trials. Positive conclusions were reported in 56.8% of trials with industry-only, 55.6% with academia-only, 44.1% with academia and industry, 77.8% with none, and 76.4% with not described funding source (p = 0.011). Positive conclusions were reported in 60.4% of trials with unrelated COI, 60% with related COI, and 60% with no COI reported (p = 0.997). Factors that were significantly associated with the presence of positive conclusion included trials design (phase 1) [OR 11.64 (95 CI 4.66-29.09), p source [OR 2.45 (95 CI 1.22-5.22), p = 0.011]. In a multivariable regression model, all these factors remained significantly associated with trial's positive conclusion. Funding source and self-reported COI did not appear to influence the CNS trials conclusion. Funding source information and COI disclosure were under-reported in 14.1 and 17.2% of the CNS trials. Continued efforts are needed to increase rates of both COI and funding source reporting.

  10. Finding legal information a guide to print and electronic sources

    CERN Document Server

    Pester, David

    2003-01-01

    Given the vast amount of legal information available, it is sometimes very difficult - and certainly very time consuming - to know where to start looking for the specific information you require. This book, covering the most up-to-date information sources (printed and electronic), helps guide the reader towards the information they need. It is an accessible and easy-to-use directory of legal information sources for librarians, lawyers, students and anyone needing legal information. The book covers mainly British and European Union law and includes general material and the main subject areas, including online and internet sources. It also lists reference material, such as legal dictionaries and directories. The book is essentially a directory of information sources, with publishing details (including ISBN), and short comments where useful. Electronic sources are mentioned where relevant, with details of scope and any limitations of coverage. Comprehensive and up-to-date (covering electronic sources and importa...

  11. OPINION GIVING SERVICES AS A SOURCE OF CONSUMER INFORMATION

    Directory of Open Access Journals (Sweden)

    Joanna Wyrwisz

    2015-09-01

    Full Text Available The goal of the article is to determine the place and role of opinion giving services in consumer behaviours. The discussion is conducted around the thesis saying that in the information society, opinion giving services constitute an important source of information for consumers in the process of selecting and purchasing both products and services. In the article the research approach based on the theoretical and empirical examinations was presented. The discussion starts with presenting a defi nition and types of opinion giving services which constitute the base for the characteristics of activities and usefulness of web portals collecting consumers opinions. The use of opinion giving services provided in the purchase process was evaluated. An essential interest in other consumers opinions, placed in Internet, was observed together with perceiving them as credible. Positive assessment of the functionality of opinion giving services was noticed.

  12. Use of online sources of information by dental practitioners

    DEFF Research Database (Denmark)

    Funkhouser, Ellen; Agee, Bonita S; Gordan, Valeria V

    2014-01-01

    journals online, obtained continuing education (CDE) through online sources, rated an online source as most influential, and reported frequently using an online source for guidance. Demographics, journals read, and use of various sources of information for practice guidance in terms of frequency...

  13. Information Content Moderates Positivity and Negativity Biases in Memory

    Science.gov (United States)

    Hess, Thomas M.; Popham, Lauren E.; Dennis, Paul A.; Emery, Lisa

    2014-01-01

    Two experiments examined the impact of encoding conditions and information content in memory for positive, neutral, and negative pictures. We examined the hypotheses that the positivity effect in memory (i.e., a bias in favor of positive or against negative information in later life) would be reduced when (a) pictures were viewed under structured as opposed to unstructured conditions, and (b) contained social as opposed to nonsocial content. Both experiments found that the positivity effect observed with nonsocial stimuli was absent with social stimuli. In addition, little evidence was obtained that encoding conditions affected the strength of the positivity effect. We argue that some types of social stimuli may engage different types of processing than nonsocial stimuli, perhaps encouraging self-referential processing that engages attention and supports memory. This processing may then conflict with the goal-driven, top-down processing that is hypothesized to drive the positivity effect. Thus, our results identify further boundary conditions associated with the positivity effect in memory, arguing that stimulus factors as well as situational goals may affect its occurrence. Further research awaits to determine if this effect is specific to all social stimuli or specific subsets. PMID:23421322

  14. Information content moderates positivity and negativity biases in memory.

    Science.gov (United States)

    Hess, Thomas M; Popham, Lauren E; Dennis, Paul A; Emery, Lisa

    2013-09-01

    Two experiments examined the impact of encoding conditions and information content in memory for positive, neutral, and negative pictures. We examined the hypotheses that the positivity effect in memory (i.e., a bias in favor of positive or against negative information in later life) would be reduced when (a) pictures were viewed under structured as opposed to unstructured conditions, and (b) contained social as opposed to nonsocial content. Both experiments found that the positivity effect observed with nonsocial stimuli was absent with social stimuli. In addition, little evidence was obtained that encoding conditions affected the strength of the positivity effect. We argue that some types of social stimuli may engage different types of processing than nonsocial stimuli, perhaps encouraging self-referential processing that engages attention and supports memory. This processing may then conflict with the goal-driven, top-down processing that is hypothesized to drive the positivity effect. Thus, our results identify further boundary conditions associated with the positivity effect in memory, arguing that stimulus factors as well as situational goals may affect its occurrence. Further research awaits to determine if this effect is specific to all social stimuli or specific subsets.

  15. Open Source Information in Support of Safeguards

    International Nuclear Information System (INIS)

    Christopher, G.

    2015-01-01

    Open source techniques are an increasingly important tool for in safeguards. From social networking sites, such as Linkedin, to B2B portals like Alibaba, there are large open source databases that touch all aspects of the nuclear fuel cycle, from goods to scientists. This is in addition to the wealth of more traditional open source tools such as search engines. In this paper we focus on the potential of B2B sites to provide dual use goods for use in the nuclear fuel cycle. We will discuss the availability of these items as well as the frequency and content of tenders. As many of the largest sites—by traffic and content—are in Asia we will examine the potential of these sites to provide goods used in the nuclear fuel cycle. (author)

  16. Information Source Selection and Management Framework in Wireless Sensor Network

    DEFF Research Database (Denmark)

    Tobgay, Sonam; Olsen, Rasmus Løvenstein; Prasad, Ramjee

    2013-01-01

    information source selection and management framework and presents an algorithm which selects the information source based on the information mismatch probability [1]. The sampling rate for every access is decided as per the maximum allowable power consumption limit. Index Terms-wireless sensor network...

  17. Grower Communication Networks: Information Sources for Organic Farmers

    Science.gov (United States)

    Crawford, Chelsi; Grossman, Julie; Warren, Sarah T.; Cubbage, Fred

    2015-01-01

    This article reports on a study to determine which information sources organic growers use to inform farming practices by conducting in-depth semi-structured interviews with 23 organic farmers across 17 North Carolina counties. Effective information sources included: networking, agricultural organizations, universities, conferences, Extension, Web…

  18. Legal Information Sources: An Annotated Bibliography.

    Science.gov (United States)

    Conner, Ronald C.

    This 25-page annotated bibliography describes the legal reference materials in the special collection of a medium-sized public library. Sources are listed in 12 categories: cases, dictionaries, directories, encyclopedias, forms, references for the lay person, general, indexes, laws and legislation, legal research aids, periodicals, and specialized…

  19. ASTM Data Banks and Chemical Information Sources

    Science.gov (United States)

    Batik, Albert; Hale, Eleanor

    1972-01-01

    Among the data described are infrared indexes, mass spectral data, chromatographic data, X-ray emmission data, odor and taste threshold data, and thermodynamics data. This paper provides the chemical documentarian a complete reference source to a wide variety of analytical data. (Author/NH)

  20. Electrode design and performance of the ORNL positive ion sources

    International Nuclear Information System (INIS)

    Whealton, J.H.; Gardner, W.L.; Haselton, H.H.

    1981-08-01

    The neutral beam development group at ORNL has designed, constructed, and shipped four 50-kV, 100-A sources to PPL to be used for neutral beam heating of the confined plasma on the PDX tokamak. These sources have higher current capability than scaled-down sources, and they are required to run for 0.5 s as opposed to the 0.3-s requirement for PLT and ISX-B sources. Due to an innovative electrode design, these higher power sources met these requirements and achieved a higher transmission efficiency - 76% of the total input power on target vs 60% for the original ISX-B and modified PLT sources or 40% for the original PLT sources. Using the same electrode design with a tetrode accelerating structure and a new, indirectly heated cathode, repeatable long pulse, high energy conditions of 70 kV, 7 A, 8 s, and 90 kV, 9 A, 5 s were achieved. Grid deformation calculations and Monte Carlo beam line gas deposition algorithms will be discussed. A direct-magnetic-electron-blocking, direct-recovery device is described, and theoretical considerations of it are discussed

  1. Saudis trust and confidence in information sources about chemical ...

    African Journals Online (AJOL)

    AJL

    To communicate information on chemical pollution health risks effectively, policy makers must know .... opinions, and perception of environmental health risks,. (ii) know their .... information on health risks from multiple sources. Similarly when ...

  2. Recovering management information from source code

    NARCIS (Netherlands)

    Kwiatkowski, L.; Verhoef, C.

    2013-01-01

    IT has become a production means for many organizations and an important element of business strategy. Even though its effective management is a must, reality shows that this area still remains in its infancy. IT management relies profoundly on relevant information which enables risk mitigation or

  3. Information sources and utilization patterns of pharmaceutical ...

    African Journals Online (AJOL)

    The study investigated the adequacy of pharmaceutical scientists' information environment in feeding their occupational activities. Data was collected through observation and through questionnaire administration to all the twenty-seven scientists in two large pharmaceutical companies in Lagos, Nigeria. Findings revealed ...

  4. Knowledge-sourcing of R&D workers in different job positions: contextualising external personal knowledge networks

    OpenAIRE

    Huber, Franz

    2013-01-01

    This paper systematically examines the role of external personal knowledge networks vis-à-vis alternative sources of work-related knowledge. Specific hypotheses on whether the importance of external personal networks vary for job positions, knowledge functions and sources of competitiveness are examined. The study is based on a survey and interviews with 105 R&D workers in 46 Information Technology (IT) firms in the Greater Cambridge Region (UK).The results show that alternative sources o...

  5. Counter-regulating on the Internet: Threat elicits preferential processing of positive information.

    Science.gov (United States)

    Greving, Hannah; Sassenberg, Kai; Fetterman, Adam

    2015-09-01

    The Internet is a central source of information. It is increasingly used for information search in self-relevant domains (e.g., health). Self-relevant topics are also associated with specific emotions and motivational states. For example, individuals may fear serious illness and feel threatened. Thus far, the impact of threat has received little attention in Internet-based research. The current studies investigated how threat influences Internet search. Threat is known to elicit the preferential processing of positive information. The self-directed nature of Internet search should particularly provide opportunities for such processing behavior. We predicted that during Internet search, more positive information would be processed (i.e., allocated more attention to) and more positive knowledge would be acquired under threat than in a control condition. Three experiments supported this prediction: Under threat, attention is directed more to positive web pages (Study 1) and positive links (Study 2), and more positive information is acquired (Studies 1 and 3) than in a control condition. Notably, the effect on knowledge acquisition was mediated by the effect on attention allocation during an actual Internet search (Study 1). Thus, Internet search under threat leads to selective processing of positive information and dampens threatened individuals' negative affect. (c) 2015 APA, all rights reserved).

  6. Sample intake position and loading rates from nonpoint source pollution

    Science.gov (United States)

    McGuire, P. E.; Daniel, T. C.; Stoffel, D.; Andraski, B.

    1980-01-01

    Paired water samples were simultaneously activated from two different vertical positions within the approach section of a flow-control structure to determine the effect of sample intake position on nonpoint runoff parameter concentrations and subsequent event loads. Suspended solids (SS), total phosphorus (TP) and organic plus exchangeable nitrogen [(Or+Ex)-N] were consistently higher throughout each runoff event when sampled from the floor of the approach section as opposed to those samples taken at midstage. Dissolved molybdate reactive phosphorus (DMRP) and ammonium (NH4-N) concentrations did not appear to be significantly affected by the vertical difference in intake position. However, the nitrate plus nitrite nitrogen [(NO3+NO2)-N] concentrations were much higher when sampled from the midstage position. Although the concentration differences between the two methods were not appreciable, when evaluated in terms of event loads, discrepancies were evident for all parameters. Midstage sampling produced event loads for SS, TP, (Or + Ex)-N, DMRP, NH4-N, and (NO3+NO2)-N that were 44,39,35,80,71, and 181%, respectively, of floor sampling loads. Differences in loads between the two methods are attributed to the midstage position, sampling less of the bed load. The correct position will depend on the objective; however, such differences should be recognized during the design phase of the monitoring program.

  7. Actinide Source Term Program, position paper. Revision 1

    International Nuclear Information System (INIS)

    Novak, C.F.; Papenguth, H.W.; Crafts, C.C.; Dhooge, N.J.

    1994-01-01

    The Actinide Source Term represents the quantity of actinides that could be mobilized within WIPP brines and could migrate with the brines away from the disposal room vicinity. This document presents the various proposed methods for estimating this source term, with a particular focus on defining these methods and evaluating the defensibility of the models for mobile actinide concentrations. The conclusions reached in this document are: the 92 PA open-quotes expert panelclose quotes model for mobile actinide concentrations is not defensible; and, although it is extremely conservative, the open-quotes inventory limitsclose quotes model is the only existing defensible model for the actinide source term. The model effort in progress, open-quotes chemical modeling of mobile actinide concentrationsclose quotes, supported by a laboratory effort that is also in progress, is designed to provide a reasonable description of the system and be scientifically realistic and supplant the open-quotes Inventory limitsclose quotes model

  8. Information Sources and Awareness of Climate Change by Citrus ...

    African Journals Online (AJOL)

    PROF. MADUKWE

    to their production. The study therefore examines the various sources of information available to farmers on climate change and their level of awareness. .... Source of Financial Capital. Bank loan. 8.1. Coop loan. 21.1. Self financed. 60.2. Mode=Self financed. Friends and Relations. 10.5. Source: Field survey, 2011.

  9. Electronic information sources access and use for healthcare ...

    African Journals Online (AJOL)

    Background: Access to and use of electronic information sources for clinical decision is the key to the attainment of health related sustainable goals. Therefore, this study was to assess Electronic Information Sources (EIS) access and use for healthcare service among hospitals of Western Oromia, Ethiopia, 2013. Materials ...

  10. Information Source Characteristics and Environmental Scanning by Academic Library Managers

    Science.gov (United States)

    Babalhavaeji, Fahimeh; Farhadpoor, Mohammad Reza

    2013-01-01

    Purpose: This article examines characteristics of the external environment of library and information centres of Islamic Azad University in Iran, focusing on perceived environmental uncertainty and perceived source accessibility and quality, and their impacts on the amount of scanning and the frequency of information source use. Methods: This…

  11. Sources of drug information and their influence on the prescribing ...

    African Journals Online (AJOL)

    Sources of drug information and their influence on the prescribing behaviour of doctors in a teaching hospital in Ibadan, Nigeria. ... Drug information was sourced from colleagues (161, 98.8%), reference books (158, 96.9%), pharmaceutical sales representatives-PSRs (152, 93.2%), promotion materials (151, 92.6%), ...

  12. Young People's Assessment of Their Sources of Information About ...

    African Journals Online (AJOL)

    The paper concludes that, though there are a number of sources through which young people may be receiving sexual health information, the majority of them are not satisfied with the quality of information they get from many of such sources. Key words: Parents, health workers, teachers, students, sexuality education, rural ...

  13. Evaluation of an Information Source Illustrated by a Case Study

    DEFF Research Database (Denmark)

    Hjørland, Birger

    2011-01-01

    It is argued that to evaluate an information source (e.g., a Wikipedia article), it is necessary to relate the content of that source to an interpretation of the state of knowledge at the research front (which is typically developing dynamically). In the research literature, there is a controversy...... about the effect of screening programs for breast cancer. This controversy is used to compare the value of Wikipedia with Encyclopedia Britannica and two Danish encyclopedias as information sources. It is argued that this method of examining information sources is preferable to other methods which have...

  14. Sources of Information as Determinants of Product and Process Innovation

    OpenAIRE

    G?mez, Jaime; Salazar, Idana; Vargas, Pilar

    2016-01-01

    In this paper we use a panel of manufacturing firms in Spain to examine the extent to which they use internal and external sources of information (customers, suppliers, competitors, consultants and universities) to generate product and process innovation. Our results show that, although internal sources are influential, external sources of information are key to achieve innovation performance. These results are in line with the open innovation literature because they show that firms that are ...

  15. COMPARISON OF RECURSIVE ESTIMATION TECHNIQUES FOR POSITION TRACKING RADIOACTIVE SOURCES

    International Nuclear Information System (INIS)

    Muske, K.; Howse, J.

    2000-01-01

    This paper compares the performance of recursive state estimation techniques for tracking the physical location of a radioactive source within a room based on radiation measurements obtained from a series of detectors at fixed locations. Specifically, the extended Kalman filter, algebraic observer, and nonlinear least squares techniques are investigated. The results of this study indicate that recursive least squares estimation significantly outperforms the other techniques due to the severe model nonlinearity

  16. Toward better Alzheimer's research information sources for the public.

    Science.gov (United States)

    Payne, Perry W

    2013-03-01

    The National Plan to Address Alzheimer's Disease calls for a new relationship between researchers and members of the public. This relationship is one that provides research information to patients and allows patients to provide ideas to researchers. One way to describe it is a "bidirectional translational relationship." Despite the numerous sources of online and offline information about Alzheimer's disease, there is no information source which currently provides this interaction. This article proposes the creation an Alzheimer's research information source dedicated to monitoring Alzheimer's research literature and providing user friendly, publicly accessible summaries of data written specifically for a lay audience. This information source should contain comprehensive, updated, user friendly, publicly available, reviews of Alzheimer's research and utilize existing online multimedia/social networking tools to provide information in useful formats that help patients, caregivers, and researchers learn rapidly from one another.

  17. Patterns of trust in sources of health information.

    Science.gov (United States)

    Lawson, Rob; Forbes, Sarah; Williams, John

    2011-01-21

    To understand the different patterns of trust that exist regarding different sources of information about health issues. Data from a large national health lifestyles survey of New Zealanders was examined using a factor analysis of trust toward 24 health information sources (HIS). Differences in trust are compared across a range of demographic variables. Factor analysis identified six different groupings of health information. Variations in trust in sources for health information are identified by age, employment status, level of education, income, sex and ethnic group. Systematic variations exist in the trust that people report with respect to different sources of health information. Understanding these variations may assist policymakers and other agencies which are responsible for planning the dissemination of health information.

  18. Negative ratings play a positive role in information filtering

    Science.gov (United States)

    Zeng, Wei; Zhu, Yu-Xiao; Lü, Linyuan; Zhou, Tao

    2011-11-01

    The explosive growth of information asks for advanced information filtering techniques to solve the so-called information overload problem. A promising way is the recommender system which analyzes the historical records of users’ activities and accordingly provides personalized recommendations. Most recommender systems can be represented by user-object bipartite networks where users can evaluate and vote for objects, and ratings such as “dislike” and “I hate it” are treated straightforwardly as negative factors or are completely ignored in traditional approaches. Applying a local diffusion algorithm on three benchmark data sets, MovieLens, Netflix and Amazon, our study arrives at a very surprising result, namely the negative ratings may play a positive role especially for very sparse data sets. In-depth analysis at the microscopic level indicates that the negative ratings from less active users to less popular objects could probably have positive impacts on the recommendations, while the ones connecting active users and popular objects mostly should be treated negatively. We finally outline the significant relevance of our results to the two long-term challenges in information filtering: the sparsity problem and the cold-start problem.

  19. How Students Evaluate Information and Sources when Searching the World Wide Web for Information

    Science.gov (United States)

    Walraven, Amber; Brand-Gruwel, Saskia; Boshuizen, Henny P. A.

    2009-01-01

    The World Wide Web (WWW) has become the biggest information source for students while solving information problems for school projects. Since anyone can post anything on the WWW, information is often unreliable or incomplete, and it is important to evaluate sources and information before using them. Earlier research has shown that students have…

  20. Gestational weight gain information: seeking and sources among pregnant women

    OpenAIRE

    Willcox, Jane C.; Campbell, Karen J.; McCarthy, Elizabeth A.; Lappas, Martha; Ball, Kylie; Crawford, David; Shub, Alexis; Wilkinson, Shelley A.

    2015-01-01

    Background Promoting healthy gestational weight gain (GWG) is important for preventing obstetric and perinatal morbidity, along with obesity in both mother and child. Provision of GWG guidelines by health professionals predicts women meeting GWG guidelines. Research concerning women?s GWG information sources is limited. This study assessed pregnant women?s sources of GWG information and how, where and which women seek GWG information. Methods Consecutive women (n?=?1032) received a mailed que...

  1. Information Geometry of Positive Measures and Positive-Definite Matrices: Decomposable Dually Flat Structure

    Directory of Open Access Journals (Sweden)

    Shun-ichi Amari

    2014-04-01

    Full Text Available Information geometry studies the dually flat structure of a manifold, highlighted by the generalized Pythagorean theorem. The present paper studies a class of Bregman divergences called the (ρ,τ-divergence. A (ρ,τ -divergence generates a dually flat structure in the manifold of positive measures, as well as in the manifold of positive-definite matrices. The class is composed of decomposable divergences, which are written as a sum of componentwise divergences. Conversely, a decomposable dually flat divergence is shown to be a (ρ,τ -divergence. A (ρ,τ -divergence is determined from two monotone scalar functions, ρ and τ. The class includes the KL-divergence, α-, β- and (α, β-divergences as special cases. The transformation between an affine parameter and its dual is easily calculated in the case of a decomposable divergence. Therefore, such a divergence is useful for obtaining the center for a cluster of points, which will be applied to classification and information retrieval in vision. For the manifold of positive-definite matrices, in addition to the dually flatness and decomposability, we require the invariance under linear transformations, in particular under orthogonal transformations. This opens a way to define a new class of divergences, called the (ρ,τ -structure in the manifold of positive-definite matrices.

  2. Algorithms for biomagnetic source imaging with prior anatomical and physiological information

    Energy Technology Data Exchange (ETDEWEB)

    Hughett, Paul William [Univ. of California, Berkeley, CA (United States). Dept. of Electrical Engineering and Computer Sciences

    1995-12-01

    This dissertation derives a new method for estimating current source amplitudes in the brain and heart from external magnetic field measurements and prior knowledge about the probable source positions and amplitudes. The minimum mean square error estimator for the linear inverse problem with statistical prior information was derived and is called the optimal constrained linear inverse method (OCLIM). OCLIM includes as special cases the Shim-Cho weighted pseudoinverse and Wiener estimators but allows more general priors and thus reduces the reconstruction error. Efficient algorithms were developed to compute the OCLIM estimate for instantaneous or time series data. The method was tested in a simulated neuromagnetic imaging problem with five simultaneously active sources on a grid of 387 possible source locations; all five sources were resolved, even though the true sources were not exactly at the modeled source positions and the true source statistics differed from the assumed statistics.

  3. Sources of Information as Determinants of Product and Process Innovation.

    Science.gov (United States)

    Gómez, Jaime; Salazar, Idana; Vargas, Pilar

    2016-01-01

    In this paper we use a panel of manufacturing firms in Spain to examine the extent to which they use internal and external sources of information (customers, suppliers, competitors, consultants and universities) to generate product and process innovation. Our results show that, although internal sources are influential, external sources of information are key to achieve innovation performance. These results are in line with the open innovation literature because they show that firms that are opening up their innovation process and that use different information sources have a greater capacity to generate innovations. We also find that the importance of external sources of information varies depending on the type of innovation (product or process) considered. To generate process innovation, firms mainly rely on suppliers while, to generate product innovation, the main contribution is from customers. The potential simultaneity between product and process innovation is also taken into consideration. We find that the generation of both types of innovation is not independent.

  4. Sources of Information as Determinants of Product and Process Innovation.

    Directory of Open Access Journals (Sweden)

    Jaime Gómez

    Full Text Available In this paper we use a panel of manufacturing firms in Spain to examine the extent to which they use internal and external sources of information (customers, suppliers, competitors, consultants and universities to generate product and process innovation. Our results show that, although internal sources are influential, external sources of information are key to achieve innovation performance. These results are in line with the open innovation literature because they show that firms that are opening up their innovation process and that use different information sources have a greater capacity to generate innovations. We also find that the importance of external sources of information varies depending on the type of innovation (product or process considered. To generate process innovation, firms mainly rely on suppliers while, to generate product innovation, the main contribution is from customers. The potential simultaneity between product and process innovation is also taken into consideration. We find that the generation of both types of innovation is not independent.

  5. Guidelines for the implementation of an open source information system

    Energy Technology Data Exchange (ETDEWEB)

    Doak, J.; Howell, J.A.

    1995-08-01

    This work was initially performed for the International Atomic Energy Agency (IAEA) to help with the Open Source Task of the 93 + 2 Initiative; however, the information should be of interest to anyone working with open sources. The authors cover all aspects of an open source information system (OSIS) including, for example, identifying relevant sources, understanding copyright issues, and making information available to analysts. They foresee this document as a reference point that implementors of a system could augment for their particular needs. The primary organization of this document focuses on specific aspects, or components, of an OSIS; they describe each component and often make specific recommendations for its implementation. This document also contains a section discussing the process of collecting open source data and a section containing miscellaneous information. The appendix contains a listing of various providers, producers, and databases that the authors have come across in their research.

  6. Sources of Information as Determinants of Product and Process Innovation

    Science.gov (United States)

    2016-01-01

    In this paper we use a panel of manufacturing firms in Spain to examine the extent to which they use internal and external sources of information (customers, suppliers, competitors, consultants and universities) to generate product and process innovation. Our results show that, although internal sources are influential, external sources of information are key to achieve innovation performance. These results are in line with the open innovation literature because they show that firms that are opening up their innovation process and that use different information sources have a greater capacity to generate innovations. We also find that the importance of external sources of information varies depending on the type of innovation (product or process) considered. To generate process innovation, firms mainly rely on suppliers while, to generate product innovation, the main contribution is from customers. The potential simultaneity between product and process innovation is also taken into consideration. We find that the generation of both types of innovation is not independent. PMID:27035456

  7. Teens Reflect on Their Sources of Contraceptive Information

    Science.gov (United States)

    Jones, Rachel K.; Biddlecom, Ann E.; Hebert, Luciana; Mellor, Ruth

    2011-01-01

    Based on semistructured interviews with a racially and ethnically diverse sample of 58 U.S. high school students, this study examines teens' exposure to contraceptive information from a range of sources and the extent to which they trust this information. Teens report exposure to contraceptive information from many individuals and places, most…

  8. Sources of Developmental Change in the Efficiency of Information Search

    Science.gov (United States)

    Ruggeri, Azzurra; Lombrozo, Tania; Griffiths, Thomas L.; Xu, Fei

    2016-01-01

    Children are active learners: they learn not only from the information people offer and the evidence they happen to observe, but by actively seeking information. However, children's information search strategies are typically less efficient than those of adults. In two studies, we isolate potential sources of developmental change in how children…

  9. OSINT: A Major Source of Up-to-Date Information

    OpenAIRE

    Lapid, Ephraim

    2016-01-01

    OSINT has become a developing information collection agency throughout the modern world of intelligence. Intelligence bodies and individuals keep expanding their use of information, profiting from the various technological security and civil applications now available in cyberspace. Professional collaborations are recommended, as they would significantly enhance the filtering and processing of open-source information in this age of metadata.

  10. How Source Information Shapes Lay Interpretations of Science Conflicts: Interplay between Sourcing, Conflict Explanation, Source Evaluation, and Claim Evaluation

    Science.gov (United States)

    Thomm, Eva; Bromme, Rainer

    2016-01-01

    When laypeople read controversial scientific information in order to make a personally relevant decision, information on the source is a valuable resource with which to evaluate multiple, competing claims. Due to their bounded understanding, laypeople rely on the expertise of others and need to identify whether sources are credible. The present…

  11. Super-resolution for a point source using positive refraction

    Science.gov (United States)

    Miñano, Juan C.; Benítez, Pablo; González, Juan C.; Grabovičkić, Dejan; Ahmadpanahi, Hamed

    Leonhardt demonstrated (2009) that the 2D Maxwell Fish Eye lens (MFE) can focus perfectly 2D Helmholtz waves of arbitrary frequency, i.e., it can transport perfectly an outward (monopole) 2D Helmholtz wave field, generated by a point source, towards a receptor called "perfect drain" (PD) located at the corresponding MFE image point. The PD has the property of absorbing the complete radiation without radiation or scattering and it has been claimed as necessary to obtain super-resolution (SR) in the MFE. However, a prototype using a "drain" different from the PD has shown λ/5 resolution for microwave frequencies (Ma et al, 2010). Recently, the SR properties of a device equivalent to the MFE, called the Spherical Geodesic Waveguide (SGW) (Miñano et al, 2012) have been analyzed. The reported results show resolution up to λ /3000, for the SGW loaded with the perfect drain, and up to λ /500 for the SGW without perfect drain. The perfect drain was realized as a coaxial probe loaded with properly calculated impedance. The SGW provides SR only in a narrow band of frequencies close to the resonance Schumann frequencies. Here we analyze the SGW loaded with a small "perfect drain region" (González et al, 2011). This drain is designed as a region made of a material with complex permittivity. The comparative results show that there is no significant difference in the SR properties for both perfect drain designs.

  12. Smart x-ray beam position monitor system for the Advanced Photon Source

    International Nuclear Information System (INIS)

    Shu, D.; Kuzay, T.

    1996-01-01

    In third-generation synchrotron radiation sources, such as the Advanced Photon Source (APS), the sensitivity and reliability requirements for the x-ray beam position monitors (XBPMs) are much higher than for earlier systems. Noise and contamination signals caused by radiation emitted from the bending magnet become a major problem. The regular XBPM calibration process can only provide signal correction for one set of conditions for the insertion devices (ID). During normal operation, parameters affecting the ID-emitted beam, such as the gap of the ID magnets and the beam current, are the variables. A new smart x-ray beam position monitor system (SBPM) has been conceived and designed for the APS. It has a built in self-learning structure with EEPROM memory that is large enough to open-quote open-quote remember close-quote close-quote a complete set of calibration data covering all the possible operating conditions. During the self-learning mode, the monitor system initializes a series of automatic scan motions with information for different ID setups and records them into the database array. During normal operation, the SBPM corrects the normalized output according to the ID setup information and the calibration database. So that, with this novel system, the SBPM is always calibrating itself with the changing ID set up conditions. copyright 1996 American Institute of Physics

  13. ERP correlates of source memory: Unitized source information increases familiarity-based retrieval

    OpenAIRE

    Diana, Rachel A.; Van den Boom, Wijnand; Yonelinas, Andrew P.; Ranganath, Charan

    2010-01-01

    Source memory tests typically require subjects to make decisions about the context in which an item was encoded and are thought to depend on recollection of details from the study episode. Although it is generally believed that familiarity does not contribute to source memory, recent behavioral studies have suggested that familiarity may also support source recognition when item and source information are integrated, or “unitized”, during study (Diana, Yonelinas, and Ranganath 2008). However,...

  14. sources and use of extension information among maize farmers in ...

    African Journals Online (AJOL)

    DR ADESOPE

    In addition, information generated from the abattoirs are important in the formulation of effective ... However, meat from sheep, goats and pigs are equally important sources of protein. (Momoh et al. .... man and animal. Scientific publication No.

  15. Smokers' sources of e-cigarette awareness and risk information

    Directory of Open Access Journals (Sweden)

    Olivia A. Wackowski

    2015-01-01

    Conclusions: Future research should explore the content of e-cigarette information sources, their potential impact, and ways they might be strengthened or changed through regulatory and/or educational efforts.

  16. sources and use of extension information among maize farmers

    African Journals Online (AJOL)

    DR ADESOPE

    SOURCES AND USE OF EXTENSION INFORMATION AMONG MAIZE ... play one role or the other toward ensuring that research-based technologies ..... alternative means of controlling weeds (e.g. hoeing), high cost of herbicides and the risk.

  17. Addressing the changing sources of health information in Iran

    Directory of Open Access Journals (Sweden)

    Amir Alishahi Tabriz

    2013-01-01

    Conclusion : Although during 8 years of study radio and television remained as main source of health information but there is an increasing tendency to use internet especially in men. Policymakers should revise their broadcasting strategies based on people demand.

  18. Informal workshop on intense polarized ion sources: a summary

    International Nuclear Information System (INIS)

    Schultz, P.F.

    1980-01-01

    An Informal Workshop on Intense Polarized Ion Sources was held on March 6, 1980, at the O'Hare Hilton Hotel, Chicago, Illinois. The purpose of the Workshop was to discuss problems in developing higher-intensity polarized proton sources, particularly the optically-pumped source recently proposed by L.W. Anderson of the University of Wisconsin. A summary of the discussions is reported

  19. Positioning the electric utility to build information infrastructure

    Energy Technology Data Exchange (ETDEWEB)

    1994-11-01

    In two particular respects (briefly investigated in this study from a lawyer`s perspective), electric utilities appear uniquely well-positioned to contribute to the National Information Infrastructure (NII). First of all, utilities have legal powers derived from their charters and operating authorities, confirmed in their rights-of-way, to carry out activities and functions necessary for delivering electric service. These activities and functions include building telecommunications facilities and undertaking information services that have become essential to managing electricity demand and supply. The economic value of the efficiencies made possible by telecommunications and information could be substantial. How great remains to be established, but by many estimates electric utility applications could fund a significant share of the capital costs of building the NII. Though utilities` legal powers to pursue such efficiencies through telecommunications and information appear beyond dispute, it is likely that the effort to do so will produce substantial excess capacity. Who will benefit from this excess capacity is a potentially contentious political question that demands early resolution. Will this windfall go to the utility, the customer, or no one (because of political paralysis), or will there be some equitable and practical split? A second aspect of inquiry here points to another contemporary issue of very great societal importance that could very well become the platform on which the first question can be resolved fortuitously-how to achieve universal telecommunications service. In the effort to fashion the NII that will now continue, ways and means to maximize the unique potential contribution of electric utilities to meeting important social and economic needs--in particular, universal service--merit priority attention.

  20. Use of information sources by family physicians: a literature survey

    NARCIS (Netherlands)

    Verhoeven, A.A.H.; Boerma, E.J.; Meyboom-de Jong, B

    Analysis of the use of information sources by family physicians is important for both practical and theoretical reasons. First, analysis of the ways in which family physicians handle information may point to opportunities for improvement. Second, such efforts may lead to improvements in the

  1. Source credibility and the effectiveness of firewise information

    Science.gov (United States)

    Alan D. Bright; Andrew W. Don Carlos; Jerry J. Vaske; James D. Absher

    2007-01-01

    Understanding how residents of the wildlandurban interface (WUI) react to information about firewise behavior can enhance efforts to communicate safety information to the public. This study explored the multiple roles of source credibility on the elaboration and impact of messages about conducting firewise behaviors in the WUI. A mail-back survey to residents of the...

  2. Sources And Use Of Extension Information Among Maize Farmers In ...

    African Journals Online (AJOL)

    ... plant spacing, fertilizer application, post-harvest processing, and storage. Recommendations on herbicides and pesticides were however, not utilized to a great extent by the respondents. Key words: Extension information, improved maize, utilization, sources of information. Journal Of Agriculture And Social Research Vol.

  3. Information Sources and Retirement Savings of Working Women

    Science.gov (United States)

    Hsua, Chungwen

    2016-01-01

    This study examined how retirement planning information search was related to retirement savings of working women. By controlling for sociodemographic variables, the study further explored factors associated with individual information sources for retirement planning. An online survey was developed to collect data from a national population,…

  4. Source of information on family planning among married men in ...

    African Journals Online (AJOL)

    Population in Nigeria is turning into an issue that needs public alertness. Informing men on family planning services and contraceptives is extremely necessary. For this will promote more favorable attitudes and increase their involvement. This study aimed at investigating the source of family planning information for married ...

  5. 10 CFR 4.33 - Access to sources of information.

    Science.gov (United States)

    2010-01-01

    ... report and shall set forth what efforts it has made to obtain the information. ... 10 Energy 1 2010-01-01 2010-01-01 false Access to sources of information. 4.33 Section 4.33 Energy... FEDERAL FINANCIAL ASSISTANCE FROM THE COMMISSION Regulations Implementing Title VI of the Civil Rights Act...

  6. Usability of consumer-related information sources for design improvement

    NARCIS (Netherlands)

    Thiruvenkadam, G.; Brombacher, A.C.; Lu, Y.; Ouden, den P.H.

    2008-01-01

    In this paper we report the findings of a study intended to assess the usability of consumer related information sources in order to improve the design processes of innovative electronic products. Specifically, an evaluation is done of the quality and content of information that would help product

  7. Free and Open Source Management Information Systems and ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    What is the impact of introducing an automated management information system within a microfinance institution or savings and credit cooperative on the employees, the clients and the business processes? The project will involve deployment of an open source management information system (Mifos Vanilla) in two ...

  8. An efficient CDMA decoder for correlated information sources

    International Nuclear Information System (INIS)

    Efraim, Hadar; Yacov, Nadav; Kanter, Ido; Shental, Ori

    2009-01-01

    We consider the detection of correlated information sources in the ubiquitous code-division multiple-access (CDMA) scheme. We propose a message-passing based scheme for detecting correlated sources directly, with no need for source coding. The detection is done simultaneously over a block of transmitted binary symbols (word). Simulation results are provided, demonstrating a substantial improvement in bit error rate in comparison with the unmodified detector and the alternative of source compression. The robustness of the error-performance improvement is shown under practical model settings, including wrong estimation of the generating Markov transition matrix and finite-length spreading codes

  9. Parents' preferred child health information sources: implications for nursing practice.

    Science.gov (United States)

    Keatinge, Diane

    2006-01-01

    To ascertain parents' preferences in sources of health information concerning their children's general health care needs, and caring for their children when they are sick. Exploratory/descriptive design. A telephone survey secured data for the study and qualitative content analysis and descriptive statistics were used for analysis. Part 2 of a larger study in which Part I evaluated parents' satisfaction with a paediatric telephone triage service. One hundred of the 101 parents who were recruited for Part 1 of the study participated in Part 2, an examination of parents' preferences in information sources relating to their child's health. Parents' preferences in child health information sources varied according to the perceived severity of their child's illness. Parents frequently selected more than one item on a list of health information sources provided. In a non-urgent situation when children were sick a total of 170 selections were made by parents, with 'telephone advice line' the source most frequently selected (58, 34%), followed by general practitioner (27, 15.8%). In an emergency situation the most frequently selected information source was again 'telephone advice line' (74, n=129, 57.4%), followed by 'other' (31, n=129, 24.3%) often identified as relating to dialing '000' (Australia's emergency services number). Finally, when parents required information about the general health care needs of their child, 'other' (most frequently identified as books) was selected on 40 (n=185, 21.6%) occasions, followed by child health clinic (35, n= 185, 18.9%). Parents prefer to receive information about the health care needs of their child from another person rather than a printed or audio-visual source.

  10. [Toxoplasmosis and Pregnancy: Reliability of Internet Sources of Information].

    Science.gov (United States)

    Bobić, Branko; Štajner, Tijana; Nikolić, Aleksandra; Klun, Ivana; Srbljanović, Jelena; Djurković-Djaković, Olgica

    2015-01-01

    Health education of women of childbearing age has been shown to be an acceptable approach to the prevention of toxoplasmosis, the most frequent congenitally transmitted parasitic infection. The aim of this study was to evaluate the Internet as a source of health education on toxoplasmosis in pregnancy. A group of 100 pregnant women examined in the National Reference Laboratory for Toxoplasmosis was surveyed by a questionnaire on the source of their information on toxoplasmosis. We also analyzed information offered by websites in the Serbian and Croatian languages through the Google search engine, using "toxoplasmosis" as a keyword. The 23 top websites were evaluated for comprehensiveness and accuracy of information on the impact of toxoplasmosis on the course of pregnancy, diagnosis and prevention. Having knowledge on toxoplasmosis was confirmed by 64 (64.0%) examined women, 40.6% (26/64) of whom learned about toxoplasmosis through the Internet, 48.4% from physicians, and 10.9% from friends. Increase in the degree of education was found to be associated with the probability that pregnant women would be informed via the Internet (RR=3.15, 95% CI=1.27-7.82, p=0.013). Analysis of four interactive websites (allowing users to ask questions) showed that routes of infection were the most common concern, particularly the risk presented by pet cats and dogs, followed by the diagnosis of infection (who and when should be tested, and how should the results be interpreted). Of 20 sites containing educational articles, only seven were authorized and two listed sources. Evaluation confirmed that information relevant to pregnant women was significantly more accurate than comprehensive, but no site gave both comprehensive and completely accurate information. Only four sites (20%) were good sources of information for pregnant women. Internet has proved itself as an important source of information. However, despite numerous websites, only a few offer reliable information to the

  11. CONSUMER BIOTECHNOLOGY FOOD AND NUTRITION INFORMATION SOURCES: THE TRUST FACTOR

    OpenAIRE

    Ekanem, Enefiok P.; Muhammad, Safdar; Tegegne, Fisseha; Singh, Surendra P.

    2004-01-01

    Although much has been written on consumer attitudes toward genetically modified foods, not much is known about how or where consumers get the information for the decisions they make about genetically modified foods. This paper reports on the media used by consumers in acquiring information about biotech food and nutrition issues, and examines how much trust consumers put in selected information sources. The paper also discusses how socio-economic variables affect level of trust in selected s...

  12. A trial fabrication of activity standard surface sources and positional standard surface sources for an imaging plate system

    International Nuclear Information System (INIS)

    Sato, Yasushi; Hino, Yoshio; Yamada, Takahiro; Matsumoto, Mikio

    2003-01-01

    An imaging plate system can detect low level activity, but quantitative analysis is difficult because there are no adequate standard surface sources. A new fabrication method was developed for standard surface sources by printing on a sheet of paper using an ink-jet printer with inks in which a radioactive material was mixed. The fabricated standard surface sources had high uniformity, high positional resolution arbitrary shapes and a broad intensity range. The standard sources were used for measurement of surface activity as an application. (H. Yokoo)

  13. Number of warning information sources and decision making during tornadoes.

    Science.gov (United States)

    Luo, Jianjun; Cong, Zhen; Liang, Daan

    2015-03-01

    Taking proper protective action upon receiving tornado warnings is critical to reducing casualties. With more warning information sources becoming available, how the number of such information sources affects decision making should be quantitatively investigated. To examine how the number of warning information sources affected individuals' decisions to take protective action during tornadoes. A telephone survey using random sampling was conducted in 2012 with residents in Tuscaloosa AL and Joplin MO, resulting in a working sample of 782 respondents. Both cities were struck by violent tornadoes (Enhanced Fujita Scale [EF]4 and EF5) in 2011. The analysis was conducted in 2013. Logistic regression analysis showed that relative to having only one warning information source, having two and three or more warning information sources significantly increased the odds of taking protective action in Joplin but not in Tuscaloosa; having three or more sources had a significantly stronger effect on taking protective action in Joplin than in Tuscaloosa. Having an emergency preparation plan in both cities and being white in Tuscaloosa significantly increased the odds of taking protective action, whereas being divorced in Joplin reduced these odds. Receiving warnings from more warning information sources might be more beneficial in places with less previous exposure to tornadoes and for populations with lower awareness of a potential tornado and higher probability of receiving no warnings. Emergency management agencies and public health officials should give priority to these places and populations when formulating disaster mitigation decisions and policies. Copyright © 2015 American Journal of Preventive Medicine. Published by Elsevier Inc. All rights reserved.

  14. Is This Information Source Commercially Biased? How Contradictions between Web Pages Stimulate the Consideration of Source Information

    Science.gov (United States)

    Kammerer, Yvonne; Kalbfell, Eva; Gerjets, Peter

    2016-01-01

    In two experiments we systematically examined whether contradictions between two web pages--of which one was commercially biased as stated in an "about us" section--stimulated university students' consideration of source information both during and after reading. In Experiment 1 "about us" information of the web pages was…

  15. Agent paradigm and services technology for distributed Information Sources

    Directory of Open Access Journals (Sweden)

    Hakima Mellah

    2011-10-01

    Full Text Available The complexity of information is issued from interacting information sources (IS, and could be better exploited with respect to relevance of information. In distributed IS system, relevant information has a content that is in connection with other contents in information network, and is used for a certain purpose. The highlighting point of the proposed model is to contribute to information system agility according to a three-dimensional view involving the content, the use and the structure. This reflects the relevance of information complexity and effective methodologies through self organized principle to manage the complexity. This contribution is primarily focused on presenting some factors that lead and trigger for self organization in a Service Oriented Architecture (SOA and how it can be possible to integrate self organization mechanism in the same.

  16. Specific factors influencing information system/information and communication technology sourcing strategies in healthcare facilities.

    Science.gov (United States)

    Potančok, Martin; Voříšek, Jiří

    2016-09-01

    Healthcare facilities use a number of information system/information and communication technologies. Each healthcare facility faces a need to choose sourcing strategies most suitable to ensure provision of information system/information and communication technology services, processes and resources. Currently, it is possible to observe an expansion of sourcing possibilities in healthcare informatics, which creates new requirements for sourcing strategies. Thus, the aim of this article is to identify factors influencing information system/information and communication technology sourcing strategies in healthcare facilities. The identification was based on qualitative research, namely, a case study. This study provides a set of internal and external factors with their impact levels. The findings also show that not enough attention is paid to these factors during decision-making. © The Author(s) 2015.

  17. Foreign electronic information sources about environment in the Internet

    International Nuclear Information System (INIS)

    Svrsek, L.

    2005-01-01

    This presentation deals with external electronic information sources (e-sources) i. e. about data bases which are formed no by users or their institutes. Data bases are compiled by producers of data which are publishing in different forms and offerer it for users by different form. In the first part of contribution e-sources are described at the first generally. In the second part, some most significant data bases about environment in on-line medium of Internet, are described in detail

  18. Social internet sites as a source of public health information.

    Science.gov (United States)

    Vance, Karl; Howe, William; Dellavalle, Robert P

    2009-04-01

    Social media websites, such as YouTube, Facebook, MySpace, Twitter, and Second Life are rapidly emerging as popular sources of health information especially for teens and young adults. Social media marketing carries the advantages of low cost, rapid transmission through a wide community, and user interaction. Disadvantages include blind authorship, lack of source citation, and presentation of opinion as fact. Dermatologists and other health care providers should recognize the importance of social media websites and their potential usefulness for disseminating health information.

  19. Public support for energy sources and related technologies: The impact of simple information provision

    International Nuclear Information System (INIS)

    Hobman, Elizabeth V.; Ashworth, Peta

    2013-01-01

    Increasing public awareness and understanding of alternative energy sources and related technologies is an essential component of informed decision-making regarding new options of generating energy for a low carbon future. The current study examined the influence of psychological factors (i.e., pro-environmental beliefs, and subjective norms) and the provision of factual information on public support for a range of energy sources and related technologies. A representative sample of 1907 Australians completed an on-line survey that measured perceptions of a range of climate change and energy issues. Results showed that support for renewables is stronger than support for traditional fossil-fuel based energy sources (i.e., coal or gas) or nuclear energy. The provision of factual information about generation cost and emissions significantly changed support ratings, particularly when cost information was provided. Regression analyses revealed that pro-environmental beliefs were significantly related to support ratings for alternative energy sources. Subjective norms, however, were the strongest positive explanatory factor, suggesting that social mechanisms may be key drivers of support for new and emerging energy sources and related technologies. - Highlights: • We examine support for a wide range of energy sources and technologies. • Support changes when information on cost and emissions is provided. • Pro-environmental beliefs and social norms positively relate to support

  20. HIV-positive patients’ and their families’ comprehension of HIV- and AIDS-related information

    Directory of Open Access Journals (Sweden)

    Gedina E. de Wet

    2013-04-01

    Full Text Available Despite acknowledgement of the importance of sharing HIV- and AIDS-related information with people living with HIV, it is still unclear as to what their actual comprehension is of this information. This research was part of a larger project, Tswaragano, conducted in the North-West Province, South Africa, which explored and described the competence, ability and strengths of the family of the HIV-positive patient during home support. This research focused on Potchefstroom in the North-West Province. This article focuses on research with the objective being to explore and describe the comprehension of HIV-positive patients and their families with regard to HIV- and AIDS-related information, and to formulate recommendations to improve their comprehension of this information. A quantitative, explorative and descriptive survey design was followed. Data were collected by means of questionnaires completed by HIV-positive patients (n = 79 and their family members (n = 34. Descriptive statistical analysis by means of frequency analysis was conducted. Ethical considerations and mechanisms to enhance validity and reliability are discussed. The results indicated that both HIV-positive respondents and their families face social and financial challenges due to unemployment and low income. A strength found in this research is that the majority of respondents are linked to a church, which can be a valuable platform to share information on HIV and AIDS. With regards to sharing, sources and comprehension of HIV- and AIDS-related information, it is apparent that respondents perceived that pre- and post-counselling provided an opportunity for information sharing, but that they need health care workers to spend more time with them, to be non-judgemental and to make more use of visual aids. It furthermore seems that the majority of HIV-positive respondents in this study did comprehend the need for and negotiate for safer sexual practices. It was concluded that

  1. HIV-positive patients’ and their families’ comprehension of HIV- and AIDS-related information

    Directory of Open Access Journals (Sweden)

    Gedina E. de Wet

    2013-04-01

    Full Text Available Despite acknowledgement of the importance of sharing HIV- and AIDS-related information with people living with HIV, it is still unclear as to what their actual comprehension is of this information. This research was part of a larger project, Tswaragano, conducted in the North-West Province, South Africa, which explored and described the competence, ability and strengths of the family of the HIV-positive patient during home support. This research focused on Potchefstroom in the North-West Province. This article focuses on research with the objective being to explore and describe the comprehension of HIV-positive patients and their families with regard to HIV- and AIDS-related information, and to formulate recommendations to improve their comprehension of this information. A quantitative, explorative and descriptive survey design was followed. Data were collected by means of questionnaires completed by HIV-positive patients (n= 79 and their family members (n= 34. Descriptive statistical analysis by means of frequency analysis was conducted. Ethical considerations and mechanisms to enhance validity and reliability are discussed. The results indicated that both HIV-positive respondents and their families face social and financial challenges due to unemployment and low income. A strength found in this research is that the majority of respondents are linked to a church, which can be a valuable platform to share information on HIV and AIDS. With regards to sharing, sources and comprehension of HIV- and AIDS-related information, it is apparent that respondents perceived that pre- and post-counselling provided an opportunity for information sharing, but that they need health care workers to spend more time with them, to be non-judgemental and to make more use of visual aids. It furthermore seems that the majority of HIV-positive respondents in this study did comprehend the need for and negotiate for safer sexual practices. It was concluded that although

  2. A study on virtual source position for electron beams from a Mevatron MD linear accelerator

    International Nuclear Information System (INIS)

    Ravindran, B.P.

    1999-01-01

    The virtual source position (VSP) for electron beams of energies 5, 7, 9 10, 12 and 14 MeV and for the applicators (cones) available in the department have been measured for a Mevatron MD class linear accelerator. Different methods of obtaining the virtual source position for electron beams have been investigated in the present study. The results obtained have been compared with those of other workers. It is observed that the VSP is very much machine dependent and needs to be measured for each linear accelerator. The effect of shielding on virtual source position for the type of applicators available in the department has also been investigated. (author)

  3. Preferred information sources for clinical decision making: critical care nurses' perceptions of information accessibility and usefulness.

    Science.gov (United States)

    Marshall, Andrea P; West, Sandra H; Aitken, Leanne M

    2011-12-01

    Variability in clinical practice may result from the use of diverse information sources to guide clinical decisions. In routine clinical practice, nurses privilege information from colleagues over more formal information sources. It is not clear whether similar information-seeking behaviour is exhibited when critical care nurses make decisions about a specific clinical practice, where extensive practice variability exists alongside a developing research base. This study explored the preferred sources of information intensive care nurses used and their perceptions of the accessibility and usefulness of this information for making decisions in clinically uncertain situations specific to enteral feeding practice. An instrumental case study design, incorporating concurrent verbal protocols, Q methodology and focus groups, was used to determine intensive care nurses' perspectives of information use in the resolution of clinical uncertainty. A preference for information from colleagues to support clinical decisions was observed. People as information sources were considered most useful and most accessible in the clinical setting. Text and electronic information sources were seen as less accessible, mainly because of the time required to access the information within the documents. When faced with clinical uncertainty, obtaining information from colleagues allows information to be quickly accessed and applied within the context of a specific clinical presentation. Seeking information from others also provides opportunities for shared decision-making and potential validation of clinical judgment, although differing views may exacerbate clinical uncertainty. The social exchange of clinical information may meet the needs of nurses working in a complex, time-pressured environment but the extent of the evidence base for information passed through verbal communication is unclear. The perceived usefulness and accessibility of information is premised on the ease of use and access

  4. Resident physicians as human information systems: sources yet seekers.

    Science.gov (United States)

    Bass, Ellen J; DeVoge, Justin Michael; Waggoner-Fountain, Linda A; Borowitz, Stephen M

    2013-01-01

    To characterize question types that residents received on overnight shifts and what information sources were used to answer them. Across 30 overnight shifts, questions asked of on-call senior residents, question askers' roles, and residents' responses were documented. External sources were noted. 158 of 397 questions (39.8%) related to the plan of care, 53 (13.4%) to medical knowledge, 48 (12.1%) to taskwork knowledge, and 44 (11.1%) to the current condition of patients. For 351 (88.4%) questions residents provided specific, direct answers or visited the patient. For 16 of these, residents modeled or completed the task. For 216 questions, residents used previous knowledge or their own clinical judgment. Residents solicited external information sources for 118 questions and only a single source for 77 (65.3%) of them. For the 118, most questions concerned either the plan of care or the patient's current condition and were asked by interns and nurses (those with direct patient care responsibilities). Resident physicians serve as an information system and they often specifically answer the question using previous knowledge or their own clinical judgment, suggesting that askers are contacting an appropriately knowledgeable person. However, they do need to access patient information such as the plan of care. They also serve an educator role and answer many knowledge-related questions. As synchronous verbal communications continue to be important pathways for information flow, informaticians need to consider the relationship between such communications and workflow in the development of healthcare support tools.

  5. Open Source, Open Standards, and Health Care Information Systems

    Science.gov (United States)

    2011-01-01

    Recognition of the improvements in patient safety, quality of patient care, and efficiency that health care information systems have the potential to bring has led to significant investment. Globally the sale of health care information systems now represents a multibillion dollar industry. As policy makers, health care professionals, and patients, we have a responsibility to maximize the return on this investment. To this end we analyze alternative licensing and software development models, as well as the role of standards. We describe how licensing affects development. We argue for the superiority of open source licensing to promote safer, more effective health care information systems. We claim that open source licensing in health care information systems is essential to rational procurement strategy. PMID:21447469

  6. Information Needs and Source Information of Agricultural Extension Workers in DIY

    Directory of Open Access Journals (Sweden)

    Retno Wulandari

    2016-02-01

    Full Text Available One of the important factors that contribute to agricultural development is information. As such agricultural extension workers that link agricultural agencies to the farmers must have adequate and up-to-date information about agricultural practices before they could inform, educate and train the farmers in method and techniques of farming. This study aims to determine the types of information needed by agricultural extension workers; to determine the sources of information used by the agricultural extension workers; and to determine the comparison between types of information with information sources used by agricultural extension workers. The present study was a descriptive study using a survey design and conducted at Daerah Istimewa Yogyakarta (DIY Province. The populations of the study consists 181 agricultural extension workers divisible in the district level, namely Sleman, Kulon Progo, Gunung Kidul dan Bantul. Sampling procedure in this study used cluster sampling. The method for gathering data from the respondents is based on a structured questionnaire. Descriptive statistics was to describe the characteristics of the respondents and the dependent variables of the study. As a result, most of agricultural extension workers strongly needed the innovation information in seeking information followed by extension service information and extension role information. The result of information sources used by agricultural extension worker for extension service information, innovation information and extension role information indicates that agricultural extension workers used interpersonal source. Most of them never sought information use Internet, they use radio more frequently than television and video, agricultural extension worker also used mass media as information source.

  7. Direct Position Determination of Multiple Non-Circular Sources with a Moving Coprime Array

    Directory of Open Access Journals (Sweden)

    Yankui Zhang

    2018-05-01

    Full Text Available Direct position determination (DPD is currently a hot topic in wireless localization research as it is more accurate than traditional two-step positioning. However, current DPD algorithms are all based on uniform arrays, which have an insufficient degree of freedom and limited estimation accuracy. To improve the DPD accuracy, this paper introduces a coprime array to the position model of multiple non-circular sources with a moving array. To maximize the advantages of this coprime array, we reconstruct the covariance matrix by vectorization, apply a spatial smoothing technique, and converge the subspace data from each measuring position to establish the cost function. Finally, we obtain the position coordinates of the multiple non-circular sources. The complexity of the proposed method is computed and compared with that of other methods, and the Cramer–Rao lower bound of DPD for multiple sources with a moving coprime array, is derived. Theoretical analysis and simulation results show that the proposed algorithm is not only applicable to circular sources, but can also improve the positioning accuracy of non-circular sources. Compared with existing two-step positioning algorithms and DPD algorithms based on uniform linear arrays, the proposed technique offers a significant improvement in positioning accuracy with a slight increase in complexity.

  8. Direct Position Determination of Multiple Non-Circular Sources with a Moving Coprime Array.

    Science.gov (United States)

    Zhang, Yankui; Ba, Bin; Wang, Daming; Geng, Wei; Xu, Haiyun

    2018-05-08

    Direct position determination (DPD) is currently a hot topic in wireless localization research as it is more accurate than traditional two-step positioning. However, current DPD algorithms are all based on uniform arrays, which have an insufficient degree of freedom and limited estimation accuracy. To improve the DPD accuracy, this paper introduces a coprime array to the position model of multiple non-circular sources with a moving array. To maximize the advantages of this coprime array, we reconstruct the covariance matrix by vectorization, apply a spatial smoothing technique, and converge the subspace data from each measuring position to establish the cost function. Finally, we obtain the position coordinates of the multiple non-circular sources. The complexity of the proposed method is computed and compared with that of other methods, and the Cramer⁻Rao lower bound of DPD for multiple sources with a moving coprime array, is derived. Theoretical analysis and simulation results show that the proposed algorithm is not only applicable to circular sources, but can also improve the positioning accuracy of non-circular sources. Compared with existing two-step positioning algorithms and DPD algorithms based on uniform linear arrays, the proposed technique offers a significant improvement in positioning accuracy with a slight increase in complexity.

  9. [Use of information sources by recently graduated physicians of Lima].

    Science.gov (United States)

    Mejia, Christian R; Caceres, Onice J; Vera, Claudia A; Nizama-Vía, Ayar; Curioso, Walter H; Mayta-Tristán, Percy

    2014-01-01

    In order to determine the use of information sources by recently graduated physicians of Lima, Peru in 2011, a survey was conducted among graduated physicians at seven universities. They were asked about the use of search engines in the health area during their year of medical internship [last year of medical school]. Regular use was defined as the source being used once a week or daily. For 490 respondents, regularly used information sources were SciELO, accessed by 173 (36.4%); PubMed 165 (34.4%); HINARI 117 (25.5%); UpToDate 98 (22.3%); Cochrane Library 94 (20.6%); LILACS 91 (19.8%); a hospital institutional library 70 (15.0%); LIPECS 39 (8.7%); and Peru BVS 42 (9.3%). Only a minority regularly accessed information sources related to health. It is necessary to improve capacity in the efficient use of various resources of scientific information in a continuous way and that reaches students and health professionals.

  10. Information sources for decision making by senior managers in two ...

    African Journals Online (AJOL)

    Senior managers shoulder the responsibility of formulating policies that organization needs for the smooth running of their individuals establishments. The quality of decision made is also dependent on how current the sources of information utilized to make it. Much of policies formulated for national development have little ...

  11. Security Vulnerabilities of the Web Based Open Source Information ...

    African Journals Online (AJOL)

    This paper exposes security vulnerabilities of the web based Open Source Information Systems (OSIS) from both system angle and human perspectives.It shows the extent of risk that can likely hinder adopting organization from attaning full intended benefits of using OSIS software. To undertake this study, a case study ...

  12. Advances in the use of open-source information

    International Nuclear Information System (INIS)

    Horak, K.; Bleakly, D.; McDaniel, M.

    2013-01-01

    Great advances have been made in the application of open-source information for Safeguards. However, the open-source 'ecosystem' is rapidly evolving. Recently, the combination of powerful smart-phones and the World Wide Web have led to novel developments for mapping the impact of natural and man-made disasters. Researchers are learning to harness online volunteers as citizen scientists. Online social media such as Facebook, LinkedIn, and Twitter are becoming accepted channels of credible information. Geo-spatially-aware applications (augmented reality applications) are capable of overlaying data upon a smart-phone's view screen. The authors review available open-source tools and technologies. These and other developments will have a significant effect on the collection, evaluation, structuring, analysis, and dissemination of safeguards-relevant information. In addition, the modern, open Internet is posing new security threats.not just viruses and their ilk, but threats based on digital traces left by browsing the open Web. The authors present a case study of the disastrous toxic flood near Devecser, Hungary in October 2010 for which we get 621,000 results for everything related to search terms, 68,000 blog posts on the topic, 43,300 images available and then give recommendations for the future use of open-source information and software tools. (authors)

  13. Emerging Pattern in Utilizing Electronic Information Sources by ...

    African Journals Online (AJOL)

    This is a detailed comparative analysis of electronic information sources (EIS) utilized by pharmacy lecturers in South-South universities in Nigeria. The purpose of this study is to analyze the extent to which EIS are utilized among pharmacy lecturers in South-South Nigeria. The aim is to explore the emerging pattern of ...

  14. SARS Risk Perception, Knowledge, Precautions, and Information Sources, the Netherlands

    Science.gov (United States)

    Aro, Arja R.; Oenema, Anke; de Zwart, Onno; Richardus, Jan Hendrik; Bishop, George D.

    2004-01-01

    Severe acute respiratory syndrome (SARS)–related risk perceptions, knowledge, precautionary actions, and information sources were studied in the Netherlands during the 2003 SARS outbreak. Although respondents were highly aware of the SARS outbreak, the outbreak did not result in unnecessary precautionary actions or fears. PMID:15496256

  15. First aid practices, beliefs, and sources of information among ...

    African Journals Online (AJOL)

    Background: While burns take seconds to occur, injuries incurred result in pain and undesirable long term effects that might take a lifetime to overcome. The study was carried out to determine the measures of first aid delivered by caregivers after a burn injury and sources of the information. Methods: A cross- sectional study ...

  16. Smokers' sources of e-cigarette awareness and risk information.

    Science.gov (United States)

    Wackowski, Olivia A; Bover Manderski, Michelle T; Delnevo, Cristine D

    Few studies have explored sources of e-cigarette awareness and peoples' e-cigarette information needs, interests or behaviors. This study contributes to both domains of e-cigarette research. Results are based on a 2014 e-cigarette focused survey of 519 current smokers from a nationally representative research panel. Smokers most frequently reported seeing e-cigarettes in stores (86.4%) and used in person (83%). Many (73%) had also heard about e-cigarettes from known users, broadcast media ads (68%), other (print, online) advertisements (71.5%), and/or from the news (60.9%); sources of awareness varied by e-cigarette experience. Most smokers (59.9%) believed e-cigarettes are less harmful than regular cigarettes, a belief attributed to "common sense" (76.4%), the news (39.2%) and advertisements (37.2%). However, 79.5% felt e-cigarette safety information was important. Over one-third said they would turn to a doctor first for e-cigarette safety information, though almost a quarter said they would turn to the Internet or product packaging first. Most (59.6%) ranked doctors as the most trustworthy risk source, and 6.8% had asked a health professional about e-cigarettes. Future research should explore the content of e-cigarette information sources, their potential impact, and ways they might be strengthened or changed through regulatory and/or educational efforts.

  17. Utilization Status of Electronic Information Sources (EIS) for HIV ...

    African Journals Online (AJOL)

    Tesfa

    HIV/AIDS Care and Treatment in Specialized Teaching Hospitals of. Ethiopia, 2016. Senait Samuel Bramo. 1. , Tesfamichael Alaro Agago. 2*. OPEN ACCESS. Citation: Senait Samuel Bramo,. Tesfamichael Alaro Agago. Utilization. Status of Electronic Information Sources. (EIS) for HIV/AIDS Care and Treatment.

  18. Advances in the use of open-source information

    Energy Technology Data Exchange (ETDEWEB)

    Horak, K.; Bleakly, D.; McDaniel, M. [Sandia National Laboratories, Albuquerque, NM (United States)

    2013-07-01

    Great advances have been made in the application of open-source information for Safeguards. However, the open-source 'ecosystem' is rapidly evolving. Recently, the combination of powerful smart-phones and the World Wide Web have led to novel developments for mapping the impact of natural and man-made disasters. Researchers are learning to harness online volunteers as citizen scientists. Online social media such as Facebook, LinkedIn, and Twitter are becoming accepted channels of credible information. Geo-spatially-aware applications (augmented reality applications) are capable of overlaying data upon a smart-phone's view screen. The authors review available open-source tools and technologies. These and other developments will have a significant effect on the collection, evaluation, structuring, analysis, and dissemination of safeguards-relevant information. In addition, the modern, open Internet is posing new security threats.not just viruses and their ilk, but threats based on digital traces left by browsing the open Web. The authors present a case study of the disastrous toxic flood near Devecser, Hungary in October 2010 for which we get 621,000 results for everything related to search terms, 68,000 blog posts on the topic, 43,300 images available and then give recommendations for the future use of open-source information and software tools. (authors)

  19. source of information on family planning among married men in ...

    African Journals Online (AJOL)

    LUCY

    This is a questionnaire base study targeting 350 married men in Ekpoma. Participation was by choice and the ... KEYWORDS: Family planning, Information source, Married men, Contraceptive, Nigeria. INTRODUCTION. Organized family ... 1988 population policy played a key role in raising demand and supply for family ...

  20. On-line sources of toxicological information in Canada

    International Nuclear Information System (INIS)

    Racz, William J.; Ecobichon, Donald J.; Baril, Marc

    2003-01-01

    This paper will provide an overview of the on-line resources available in toxicology in Canada. It will describe a brief history of The Society of Toxicology of Canada, with reference to other societies and also provide information on education, research and other resources related to toxicology. Toxicology in Canada emerged as a distinct and vibrant discipline following the thalidomide tragedy of the 1960s. In the pharmaceutical industry and government, toxicology was readily established as an essential component of drug development and safety, and as the need for toxicologists expanded, training programs were established, usually in collaboration with departments of pharmacology. In the last two to three decades other disciplines, environmental biology, analytical chemistry and epidemiology joined the ranks of toxicology. The on-line sources of toxicology information are rapidly expanding. This article describes those sources considered by the authors to be important from a national and international perspective. The majority of these sources are professional organizations and government agencies

  1. Pure sources and efficient detectors for optical quantum information processing

    Science.gov (United States)

    Zielnicki, Kevin

    Over the last sixty years, classical information theory has revolutionized the understanding of the nature of information, and how it can be quantified and manipulated. Quantum information processing extends these lessons to quantum systems, where the properties of intrinsic uncertainty and entanglement fundamentally defy classical explanation. This growing field has many potential applications, including computing, cryptography, communication, and metrology. As inherently mobile quantum particles, photons are likely to play an important role in any mature large-scale quantum information processing system. However, the available methods for producing and detecting complex multi-photon states place practical limits on the feasibility of sophisticated optical quantum information processing experiments. In a typical quantum information protocol, a source first produces an interesting or useful quantum state (or set of states), perhaps involving superposition or entanglement. Then, some manipulations are performed on this state, perhaps involving quantum logic gates which further manipulate or entangle the intial state. Finally, the state must be detected, obtaining some desired measurement result, e.g., for secure communication or computationally efficient factoring. The work presented here concerns the first and last stages of this process as they relate to photons: sources and detectors. Our work on sources is based on the need for optimized non-classical states of light delivered at high rates, particularly of single photons in a pure quantum state. We seek to better understand the properties of spontaneous parameteric downconversion (SPDC) sources of photon pairs, and in doing so, produce such an optimized source. We report an SPDC source which produces pure heralded single photons with little or no spectral filtering, allowing a significant rate enhancement. Our work on detectors is based on the need to reliably measure single-photon states. We have focused on

  2. Performance of positive ion based high power ion source of EAST neutral beam injector

    International Nuclear Information System (INIS)

    Hu, Chundong; Xie, Yahong; Xie, Yuanlai; Liu, Sheng; Xu, Yongjian; Liang, Lizhen; Jiang, Caichao; Li, Jun; Liu, Zhimin

    2016-01-01

    The positive ion based source with a hot cathode based arc chamber and a tetrode accelerator was employed for a neutral beam injector on the experimental advanced superconducting tokamak (EAST). Four ion sources were developed and each ion source has produced 4 MW @ 80 keV hydrogen beam on the test bed. 100 s long pulse operation with modulated beam has also been tested on the test bed. The accelerator was upgraded from circular shaped to diamond shaped in the latest two ion sources. In the latest campaign of EAST experiment, four ion sources injected more than 4 MW deuterium beam with beam energy of 60 keV into EAST

  3. Reception of nutrition information by adult and older adult users of Primary Healthcare: Occurrence, associated factors, and sources of information

    Directory of Open Access Journals (Sweden)

    Ivana Loraine LINDEMANN

    Full Text Available ABSTRACT Objective: To investigate reception of nutrition information (outcome, associated factors, and types of sources. Methods: This cross-sectional study, conducted in 2013, included 1,246 adult and older adult users of the Primary Healthcare network of Pelotas, Rio Grande do Sul, Brazil. The sample was characterized by reception of nutrition information, its sources, and demographic, socioeconomic, health, knowledge, and life habit variables. Prevalence ratios and their respective 95% confidence intervals investigated associations between reception of nutrition information and independent variables. Results: More than one-third of the sample (37.6% received nutrition information (95%CI=34.9-40.3. Older adults, individuals with positive self-perceived diet, those who received health information, and those who were physically active were more likely to receive nutrition information, and normal weight individuals were less likely. The outcome differed by income strata, being highest in the highest quintile. There was a linear trend for education level and for following the Ten Steps to Healthy Eating: the outcome was more likely in individuals with at least higher education and those who followed at least four steps. The most cited sources of nutrition information were television shows (56.2%, other (46.2%, physician (41.2%, Internet (25.1%, and family members (20.9%, which did not differ by sex. Conclusion: Primary healthcare users received little nutrition information, and television could be a useful tool for the institutions responsible for the sector to disseminate the official nutritional recommendations.

  4. Identification of energy information needs and existing information sources for Pennsylvania

    Energy Technology Data Exchange (ETDEWEB)

    Wisch, A.; Kunzier, J.; Limaye, D.; Orlando, J.

    1976-01-01

    Through use of a comprehensive interviewing schedule designed to elicit information needs from state policymakers, this study has shown a statewide need for a workable energy information network. As a counterpoint to this needs survey, it was also demonstrated that many of the components of such an information base already are available at the state and Federal levels. In order to assure that Pennsylvania's decision makers have access to this required information in a current and useful format at a minimal cost, this study has suggested a three-pronged action program: (1) In order to construct a workable energy information network for use by the Commonwealth, a liaison should be established with the Governor's Energy Council and the various national and regional energy information sources as cited in this report. (2) An information directory on State, Federal and private sources should be maintained and distributed on a continuing basis. An assessment of each source should be included with information on ease of access and relevance of the source to Pennsylvania. (3) After an information need is unable to be met through use of (1) the state energy information network and/or (2) the state energy information directory, effort should be initiated to satisfy that specific requirement.

  5. Information source exploitation/exploration and NPD decision-making

    DEFF Research Database (Denmark)

    Jespersen, Kristina Risom

    different Scandinavian companies. Data was analyzed using hierarchical regression models across decision criteria dimensions and NPD stages as well as analyzing the combination of selected information sources. Rather than forwarding one optimal search behavior for the entire NPD process, we find optimal...... information search behavior at either end of the exploitation/exploration continuum. Additionally, we find that overexploitation and overexploration is caused by managerial bias. This creates managerial misbehavior at gate decision-points of the NPD process.......The purpose of this study is to examine how the exploration/exploitation continuum is applied by decision-makers in new product gate decision-making. Specifically, we analyze at gate decision-points how the evaluation of a new product project is affected by the information source exploitation...

  6. Racial and Ethnic Differences in Tobacco Information Seeking and Information Sources: Findings From the 2015 Health Information National Trends Survey.

    Science.gov (United States)

    Nguyen, Anh B; Robinson, Joelle; O'Brien, Erin Keely; Zhao, Xiaoquan

    2017-09-01

    This article describes sources of health information, types of tobacco information sought, and trust in sources of tobacco information among U.S. racial/ethnic groups (Whites, Blacks, Hispanics, Asian and Pacific Islanders, and Other). Cross-sectional data (N = 3,788) from a nationally representative survey, HINTS-FDA 2015, were analyzed to examine unadjusted and adjusted associations between race/ethnicity and (a) first source of health information, (b) tobacco information seeking, and (c) trust in sources of tobacco information. Adjusted associations controlled for current tobacco product use and sociodemographic variables. Findings indicated that the Internet was the most common first source of health information while health care providers were the second most common source for all racial/ethnic groups. Tobacco-related health information seeking was more prevalent than other tobacco product information seeking. Unadjusted analyses indicated that a higher proportion of Whites sought other tobacco product information compared to Asians and Pacific Islanders. Trust was rated highest for doctors while trust for health organizations was rated second highest. Asians and Pacific Islanders had higher trust in the government compared to all other groups. Blacks had higher trust in religious organizations compared to all other groups besides Hispanics. Blacks had higher trust for tobacco companies compared to Whites and Other. Many of these differences were attenuated in adjusted analyses. This research has implications for tobacco control practice and policymaking by identifying potential dissemination strategies.

  7. Health information systems in Africa: descriptive analysis of data sources, information products and health statistics.

    Science.gov (United States)

    Mbondji, Peter Ebongue; Kebede, Derege; Soumbey-Alley, Edoh William; Zielinski, Chris; Kouvividila, Wenceslas; Lusamba-Dikassa, Paul-Samson

    2014-05-01

    To identify key data sources of health information and describe their availability in countries of the World Health Organization (WHO) African Region. An analytical review on the availability and quality of health information data sources in countries; from experience, observations, literature and contributions from countries. Forty-six Member States of the WHO African Region. No participants. The state of data sources, including censuses, surveys, vital registration and health care facility-based sources. In almost all countries of the Region, there is a heavy reliance on household surveys for most indicators, with more than 121 household surveys having been conducted in the Region since 2000. Few countries have civil registration systems that permit adequate and regular tracking of mortality and causes of death. Demographic surveillance sites function in several countries, but the data generated are not integrated into the national health information system because of concerns about representativeness. Health management information systems generate considerable data, but the information is rarely used because of concerns about bias, quality and timeliness. To date, 43 countries in the Region have initiated Integrated Disease Surveillance and Response. A multitude of data sources are used to track progress towards health-related goals in the Region, with heavy reliance on household surveys for most indicators. Countries need to develop comprehensive national plans for health information that address the full range of data needs and data sources and that include provision for building national capacities for data generation, analysis, dissemination and use. © The Royal Society of Medicine.

  8. A new concept positive (negative) surface ionization source for RIB applications

    International Nuclear Information System (INIS)

    Alton, G.D.; Welton, R.F.; Cui, B.

    1996-01-01

    A versatile, new concept, spherical-geometry, positive (negative) surface-ionization source has been designed. fabricated, and tests completed which can operate in either positive- or negative-ion beam generation modes without mechanical changes to the source. The highly permeable, composite Ir/C has an intrinsic work function of 0 = 5.29 eV and can be used directly for the generation of positive-ion beams of highly electropositive elements. For negative-surface ionization, the work function is lowered by dynamic flow of a highly electropositive adsorbate such as Cs through the ionizer matrix. The results of initial testing indicate that the source is reliable, stable and easy to operate, with efficiencies for Cs + estimated to exceed 60% and as high as ∼50% for F - generation. The design features, operational principles, and initial performance of the source for generating Cs + and F - , when operated with Cs, are discussed in this article

  9. SU-F-T-71: A Practical Method for Evaluation of Electron Virtual Source Position

    Energy Technology Data Exchange (ETDEWEB)

    Huang, Z; Jiang, W; Stuart, B; Leu, S; Feng, Y [East Carolina University, Greenville, North Carolina (United States); Liu, T [Houston Methodist Hospital, Sugar Land, TX (United States)

    2016-06-15

    Purpose: Since electrons are easily scattered, the virtual source position for electrons is expected to locate below the x-ray target of Medical Linacs. However, the effective SSD method yields the electron virtual position above the x-ray target for some applicators for some energy in Siemens Linacs. In this study, we propose to use IC Profiler (Sun Nuclear) for evaluating the electron virtual source position for the standard electron applicators for various electron energies. Methods: The profile measurements for various nominal source-to-detector distances (SDDs) of 100–115 cm were carried out for electron beam energies of 6–18 MeV. Two methods were used: one was to use a 0.125 cc ion chamber (PTW, Type 31010) with buildup mounted in a PTW water tank without water filled; and the other was to use IC Profiler with a buildup to achieve charge particle equilibrium. The full width at half-maximum (FWHM) method was used to determine the field sizes for the measured profiles. Backprojecting (by a straight line) the distance between the 50% points on the beam profiles for the various SDDs, yielded the virtual source position for each applicator. Results: The profiles were obtained and the field sizes were determined by FWHM. The virtual source positions were determined through backprojection of profiles for applicators (5, 10, 15, 20, 25). For instance, they were 96.415 cm (IC Profiler) vs 95.844 cm (scanning ion chamber) for 9 MeV electrons with 10×10 cm applicator and 97.160 cm vs 97.161 cm for 12 MeV electrons with 10×10 cm applicator. The differences in the virtual source positions between IC profiler and scanning ion chamber were within 1.5%. Conclusion: IC Profiler provides a practical method for determining the electron virtual source position and its results are consistent with those obtained by profiles of scanning ion chamber with buildup.

  10. SU-F-T-71: A Practical Method for Evaluation of Electron Virtual Source Position

    International Nuclear Information System (INIS)

    Huang, Z; Jiang, W; Stuart, B; Leu, S; Feng, Y; Liu, T

    2016-01-01

    Purpose: Since electrons are easily scattered, the virtual source position for electrons is expected to locate below the x-ray target of Medical Linacs. However, the effective SSD method yields the electron virtual position above the x-ray target for some applicators for some energy in Siemens Linacs. In this study, we propose to use IC Profiler (Sun Nuclear) for evaluating the electron virtual source position for the standard electron applicators for various electron energies. Methods: The profile measurements for various nominal source-to-detector distances (SDDs) of 100–115 cm were carried out for electron beam energies of 6–18 MeV. Two methods were used: one was to use a 0.125 cc ion chamber (PTW, Type 31010) with buildup mounted in a PTW water tank without water filled; and the other was to use IC Profiler with a buildup to achieve charge particle equilibrium. The full width at half-maximum (FWHM) method was used to determine the field sizes for the measured profiles. Backprojecting (by a straight line) the distance between the 50% points on the beam profiles for the various SDDs, yielded the virtual source position for each applicator. Results: The profiles were obtained and the field sizes were determined by FWHM. The virtual source positions were determined through backprojection of profiles for applicators (5, 10, 15, 20, 25). For instance, they were 96.415 cm (IC Profiler) vs 95.844 cm (scanning ion chamber) for 9 MeV electrons with 10×10 cm applicator and 97.160 cm vs 97.161 cm for 12 MeV electrons with 10×10 cm applicator. The differences in the virtual source positions between IC profiler and scanning ion chamber were within 1.5%. Conclusion: IC Profiler provides a practical method for determining the electron virtual source position and its results are consistent with those obtained by profiles of scanning ion chamber with buildup.

  11. High dose-rate brachytherapy source localization: positional resolution using a diamond detector

    International Nuclear Information System (INIS)

    Nakano, T; Suchowerska, N; Bilek, M M; McKenzie, D R; Ng, N; Kron, T

    2003-01-01

    A potential real-time source position verification process for high dose-rate (HDR) brachytherapy treatment is described. This process is intended to provide immediate confirmation that a treatment is proceeding according to plan, so that corrective action can be taken if necessary. We show that three dosimeters are in principle sufficient and demonstrate the feasibility of the process using a diamond detector and an Ir-192 source. An error analysis including all identified sources of error shows that this detector is capable of locating the distance to the source to within 2 mm for distances up to 12 cm. This positional accuracy is less than the diameter of typical HDR catheters indicating that a diamond detector can be used to accurately determine the distance to the source. The uncertainty in the distance is found to increase with distance

  12. High-intensity positive beams extracted from a compact double-chamber ion source

    International Nuclear Information System (INIS)

    Huck, H.; Somacal, H.; Di Gregorio, D.E.; Fernandez Niello, J.O.; Igarzabal, M.; Di Paolo, H.; Reinoso, M.

    2005-01-01

    This work presents the design and development of a simple ion source, the associated ion extraction optics, and the beam transport of a low-energy and high-current proton accelerator. In its actual version, the ion source can deliver positive proton currents up to 100 mA. This rather high beam current is achieved by adding a small ionization chamber between the discharge chamber containing the filament and the extraction electrode of the ion source. Different parameters of the ion source and the injection beam line are evaluated by means of computer simulations to optimize the beam production and transmission

  13. Subject Positions of Children in Information Behaviour Research

    Science.gov (United States)

    Lundh, Anna Hampson

    2016-01-01

    Introduction: This paper problematises how children are categorised as a specific user group within information behaviour research and discusses the implications of this categorisation. Methods: Two edited collections of papers on children's information behaviour are analysed. Analysis: The analysis is influenced by previous discourse analytic…

  14. Smokers' sources of e-cigarette awareness and risk information

    OpenAIRE

    Olivia A. Wackowski; Michelle T. Bover Manderski; Cristine D. Delnevo

    2015-01-01

    Introduction: Few studies have explored sources of e-cigarette awareness and peoples' e-cigarette information needs, interests, or behaviors. This study contributes to both domains of e-cigarette research. Methods: Results are based on a 2014 e-cigarette focused survey of 519 current smokers from a nationally representative research panel. Results: Smokers most frequently reported seeing e-cigarettes in stores (86.4%) and used in person (83%). Many (73%) had also heard about e-cigarette...

  15. An information theory account of late frontoparietal ERP positivities in cognitive control.

    Science.gov (United States)

    Barceló, Francisco; Cooper, Patrick S

    2018-03-01

    ERP research on task switching has revealed distinct transient and sustained positive waveforms (latency circa 300-900 ms) while shifting task rules or stimulus-response (S-R) mappings. However, it remains unclear whether such switch-related positivities show similar scalp topography and index context-updating mechanisms akin to those posed for domain-general (i.e., classic P300) positivities in many task domains. To examine this question, ERPs were recorded from 31 young adults (18-30 years) while they were intermittently cued to switch or repeat their perceptual categorization of Gabor gratings varying in color and thickness (switch task), or else they performed two visually identical control tasks (go/no-go and oddball). Our task cueing paradigm examined two temporarily distinct stages of proactive rule updating and reactive rule execution. A simple information theory model helped us gauge cognitive demands under distinct temporal and task contexts in terms of low-level S-R pathways and higher-order rule updating operations. Task demands modulated domain-general (indexed by classic oddball P3) and switch positivities-indexed by both a cue-locked late positive complex and a sustained positivity ensuing task transitions. Topographic scalp analyses confirmed subtle yet significant split-second changes in the configuration of neural sources for both domain-general P3s and switch positivities as a function of both the temporal and task context. These findings partly meet predictions from information estimates, and are compatible with a family of P3-like potentials indexing functionally distinct neural operations within a common frontoparietal "multiple demand" system during the preparation and execution of simple task rules. © 2016 Society for Psychophysiological Research.

  16. Greek students' knowledge and sources of information regarding sex education.

    Science.gov (United States)

    Matziou, V; Perdikaris, P; Petsios, K; Gymnopoulou, E; Galanis, P; Brokalaki, H

    2009-09-01

    Human sexuality is a complex part of life and is considered a multidimensional phenomenon. Therefore there is an increased need for adequate and comprehensive sex education, especially for teenagers and young adults. The main aim of the study was to evaluate the level of students' sexual knowledge, as well as to identify their sources of information regarding sexual life and reproduction. A cross-sectional study using a designed self-report questionnaire was performed. The study population consisted of 936 students who were attending 10 high schools and four medical schools in Attica. Data were collected after obtaining permission from the Pedagogic Institute of the Greek Ministry of Education. The main sources of students' sexual information about reproduction were friends (29.1%) and parents (24.0%), whereas school was reported by 14.3% of them. The preferred sources of information, according to students' perceptions, were sex education specialists (65.6%), followed by school (39.1%), parents (32.2%) and friends (27.7%). The importance of school, peer and parent support upon adolescents' sexual life was revealed by the results of the study. Students' knowledge level on sex topics is not satisfactory and therefore there is a need for sex education specialists and special courses regarding sex education in Greek schools.

  17. Feedback data sources that inform physician self-assessment.

    Science.gov (United States)

    Lockyer, Jocelyn; Armson, Heather; Chesluk, Benjamin; Dornan, Timothy; Holmboe, Eric; Loney, Elaine; Mann, Karen; Sargeant, Joan

    2011-01-01

    Self-assessment is a process of interpreting data about one's performance and comparing it to explicit or implicit standards. To examine the external data sources physicians used to monitor themselves. Focus groups were conducted with physicians who participated in three practice improvement activities: a multisource feedback program; a program providing patient and chart audit data; and practice-based learning groups. We used grounded theory strategies to understand the external sources that stimulated self-assessment and how they worked. Data from seven focus groups (49 physicians) were analyzed. Physicians used information from structured programs, other educational activities, professional colleagues, and patients. Data were of varying quality, often from non-formal sources with implicit (not explicit) standards. Mandatory programs elicited variable responses, whereas data and activities the physicians selected themselves were more likely to be accepted. Physicians used the information to create a reference point against which they could weigh their performance using it variably depending on their personal interpretation of its accuracy, application, and utility. Physicians use and interpret data and standards of varying quality to inform self-assessment. Physicians may benefit from regular and routine feedback and guidance on how to seek out data for self-assessment.

  18. Simultaneous estimation of strength and position of a heat source in a participating medium using DE algorithm

    International Nuclear Information System (INIS)

    Parwani, Ajit K.; Talukdar, Prabal; Subbarao, P.M.V.

    2013-01-01

    An inverse heat transfer problem is discussed to estimate simultaneously the unknown position and timewise varying strength of a heat source by utilizing differential evolution approach. A two dimensional enclosure with isothermal and black boundaries containing non-scattering, absorbing and emitting gray medium is considered. Both radiation and conduction heat transfer are included. No prior information is used for the functional form of timewise varying strength of heat source. The finite volume method is used to solve the radiative transfer equation and the energy equation. In this work, instead of measured data, some temperature data required in the solution of the inverse problem are taken from the solution of the direct problem. The effect of measurement errors on the accuracy of estimation is examined by introducing errors in the temperature data of the direct problem. The prediction of source strength and its position by the differential evolution (DE) algorithm is found to be quite reasonable. -- Highlights: •Simultaneous estimation of strength and position of a heat source. •A conducting and radiatively participating medium is considered. •Implementation of differential evolution algorithm for such kind of problems. •Profiles with discontinuities can be estimated accurately. •No limitation in the determination of source strength at the final time

  19. Social media as a source of market information

    Directory of Open Access Journals (Sweden)

    Tomasz Kubiak

    2017-06-01

    Full Text Available Nowadays information plays an important role in the development of companies. Information constitutes the main source of building competitive advantage allowing to make a good business decision, which leads to a company’s success on the market. Conducting marketing research makes it possible to obtain valuable information, but unfortunately this method is usually associated with the necessity of bearing high costs and in many cases research itself is conducted in an incorrect way and delivers incorrect information. We live in the age of information society, which is associated with the rapid development of the Internet and tools using the Internet allowing various forms of communication. One of such tools are social media platforms, which are usually regarded as a place for building contact networks and communication with other users. It is worth pointing out here that thanks to their popularity social media have become a place which is more and more often noticed by companies. Almost every well-known brand has its profile in the social media, allowing the users of social media portals direct contact with products, or services offered by a particular brand. Persistent popularity of social media means that they are becoming a rich source of information, both about the users – current and potential clients, but also about rivals – companies with a similar profile of activity, actively operating in social networks. The starting point for further deliberations are issues associated with the functioning of social media as a place allowing to obtain market information, which in light of the concept of market intelligence constitutes an alternative to traditional marketing research.

  20. Collecting Information for Rating Global Assessment of Functioning (GAF): Sources of Information and Methods for Information Collection.

    Science.gov (United States)

    I H, Monrad Aas

    2014-11-01

    Global Assessment of Functioning (GAF) is an assessment instrument that is known worldwide. It is widely used for rating the severity of illness. Results from evaluations in psychiatry should characterize the patients. Rating of GAF is based on collected information. The aim of the study is to identify the factors involved in collecting information that is relevant for rating GAF, and gaps in knowledge where it is likely that further development would play a role for improved scoring. A literature search was conducted with a combination of thorough hand search and search in the bibliographic databases PubMed, PsycINFO, Google Scholar, and Campbell Collaboration Library of Systematic Reviews. Collection of information for rating GAF depends on two fundamental factors: the sources of information and the methods for information collection. Sources of information are patients, informants, health personnel, medical records, letters of referral and police records about violence and substance abuse. Methods for information collection include the many different types of interview - unstructured, semi-structured, structured, interviews for Axis I and II disorders, semistructured interviews for rating GAF, and interviews of informants - as well as instruments for rating symptoms and functioning, and observation. The different sources of information, and methods for collection, frequently result in inconsistencies in the information collected. The variation in collected information, and lack of a generally accepted algorithm for combining collected information, is likely to be important for rated GAF values, but there is a fundamental lack of knowledge about the degree of importance. Research to improve GAF has not reached a high level. Rated GAF values are likely to be influenced by both the sources of information used and the methods employed for information collection, but the lack of research-based information about these influences is fundamental. Further development of

  1. Social Networks as Information Source for the Purchase Decision Process

    Directory of Open Access Journals (Sweden)

    Camila Leoni Nascimento

    2014-12-01

    Full Text Available The social networks have caused changes in the consumption habits and in the ways of relationship among companies and consumers, emerging a more demanding and informed consumer. In this paper it is aimed to assess the social networks as a source of information for the purchase of goods or services. In the study it was applied a research of exploratory nature through the survey method, conducted through personal interviews using a questionnaire with closed-ended questions. The sample of non-probabilistic type was comprised of 200 individuals from a higher education institution of São Paulo State hinterland. The survey data were analyzed descriptively. Overall, the results showed the use of social networks as a source of information search, in which the main motive is the practicality. The results corroborate the studies of Kotler and Keller (2006 when they state that the consumer seeks information on social networks to help him in the purchase, as Edelman and Hirshberg (2006 when approaching the user confidence in their friends’ opinion. For future works it is recommended to check what strategies and in what ways the companies could work in order to provide more detailed data to Internet users, aiming to support them in the decision

  2. Determinants and beliefs of health information mavens among a lower-socioeconomic position and minority population

    Science.gov (United States)

    Emmons, Karen M.; Puleo, Elaine; Viswanath, K.

    2011-01-01

    People of lower-socioeconomic position (SEP) and most racial/ethnic minorities face significant communication challenges which may negatively impact their health. Previous research has shown that these groups rely heavily on interpersonal sources to share and receive health information; however, little is known about these lay sources. The purpose of this paper is to apply the concept of a market maven to the public health sector with the aims of identifying determinants of high health information mavenism among low-SEP and racial/ethnic minority groups and to assess the information they may be sharing based on their own health beliefs. Data for this study were drawn from the baseline survey (n=325) of a US randomized control intervention study aimed at eliciting an understanding of Internet-related challenges among lower-SEP and minority individuals. Regression models were estimated to distinguish significant determinants of health information mavenism among the sample. Similarly, bivariate and logistic multivariable models were estimated to determine the association between health information mavenism and accurate health beliefs relating to diet, physical activity and smoking. The data illustrate that having a larger social network, being female and being older were important factors associated with higher mavenism scores. Additionally being a moderate consumer of general media as well as fewer years in the US and lower language acculturation were significant predictors of higher mavenism scores. Mavens were more likely than non-mavens to maintain accurate beliefs regarding diet; however, there was no distinction between physical activity and smoking beliefs between mavens and non-mavens. These results offer a unique understanding of health information mavenism which could better leverage word-of-mouth health communication efforts among lower-SEP and minority groups in order to reduce communication inequalities. Moreover, the data indicate that health information

  3. Estimating uncertainty in subsurface glider position using transmissions from fixed acoustic tomography sources.

    Science.gov (United States)

    Van Uffelen, Lora J; Nosal, Eva-Marie; Howe, Bruce M; Carter, Glenn S; Worcester, Peter F; Dzieciuch, Matthew A; Heaney, Kevin D; Campbell, Richard L; Cross, Patrick S

    2013-10-01

    Four acoustic Seagliders were deployed in the Philippine Sea November 2010 to April 2011 in the vicinity of an acoustic tomography array. The gliders recorded over 2000 broadband transmissions at ranges up to 700 km from moored acoustic sources as they transited between mooring sites. The precision of glider positioning at the time of acoustic reception is important to resolve the fundamental ambiguity between position and sound speed. The Seagliders utilized GPS at the surface and a kinematic model below for positioning. The gliders were typically underwater for about 6.4 h, diving to depths of 1000 m and traveling on average 3.6 km during a dive. Measured acoustic arrival peaks were unambiguously associated with predicted ray arrivals. Statistics of travel-time offsets between received arrivals and acoustic predictions were used to estimate range uncertainty. Range (travel time) uncertainty between the source and the glider position from the kinematic model is estimated to be 639 m (426 ms) rms. Least-squares solutions for glider position estimated from acoustically derived ranges from 5 sources differed by 914 m rms from modeled positions, with estimated uncertainty of 106 m rms in horizontal position. Error analysis included 70 ms rms of uncertainty due to oceanic sound-speed variability.

  4. Testability evaluation using prior information of multiple sources

    Directory of Open Access Journals (Sweden)

    Wang Chao

    2014-08-01

    Full Text Available Testability plays an important role in improving the readiness and decreasing the life-cycle cost of equipment. Testability demonstration and evaluation is of significance in measuring such testability indexes as fault detection rate (FDR and fault isolation rate (FIR, which is useful to the producer in mastering the testability level and improving the testability design, and helpful to the consumer in making purchase decisions. Aiming at the problems with a small sample of testability demonstration test data (TDTD such as low evaluation confidence and inaccurate result, a testability evaluation method is proposed based on the prior information of multiple sources and Bayes theory. Firstly, the types of prior information are analyzed. The maximum entropy method is applied to the prior information with the mean and interval estimate forms on the testability index to obtain the parameters of prior probability density function (PDF, and the empirical Bayesian method is used to get the parameters for the prior information with a success-fail form. Then, a parametrical data consistency check method is used to check the compatibility between all the sources of prior information and TDTD. For the prior information to pass the check, the prior credibility is calculated. A mixed prior distribution is formed based on the prior PDFs and the corresponding credibility. The Bayesian posterior distribution model is acquired with the mixed prior distribution and TDTD, based on which the point and interval estimates are calculated. Finally, examples of a flying control system are used to verify the proposed method. The results show that the proposed method is feasible and effective.

  5. Testability evaluation using prior information of multiple sources

    Institute of Scientific and Technical Information of China (English)

    Wang Chao; Qiu Jing; Liu Guanjun; Zhang Yong

    2014-01-01

    Testability plays an important role in improving the readiness and decreasing the life-cycle cost of equipment. Testability demonstration and evaluation is of significance in measuring such testability indexes as fault detection rate (FDR) and fault isolation rate (FIR), which is useful to the producer in mastering the testability level and improving the testability design, and helpful to the consumer in making purchase decisions. Aiming at the problems with a small sample of testabil-ity demonstration test data (TDTD) such as low evaluation confidence and inaccurate result, a test-ability evaluation method is proposed based on the prior information of multiple sources and Bayes theory. Firstly, the types of prior information are analyzed. The maximum entropy method is applied to the prior information with the mean and interval estimate forms on the testability index to obtain the parameters of prior probability density function (PDF), and the empirical Bayesian method is used to get the parameters for the prior information with a success-fail form. Then, a parametrical data consistency check method is used to check the compatibility between all the sources of prior information and TDTD. For the prior information to pass the check, the prior credibility is calculated. A mixed prior distribution is formed based on the prior PDFs and the corresponding credibility. The Bayesian posterior distribution model is acquired with the mixed prior distribution and TDTD, based on which the point and interval estimates are calculated. Finally, examples of a flying control system are used to verify the proposed method. The results show that the proposed method is feasible and effective.

  6. Monte Carlo dosimetry of a tandem positioned beta-emitting intravascular brachytherapy source train

    International Nuclear Information System (INIS)

    Wallace, Steven A.; Schumer, Wendy; Horrigan, Mark

    2002-01-01

    Prevention of restenosis following interventional coronary procedures with catheter based beta-emitting sources is currently under clinical trial investigations. Systems utilizing fixed length source trains limit the clinician's ability to increase the radiation source length as required. A technique known as 'pull back' is used when the segment of artery requiring radiation is longer than the available fixed length source train. In this instance, tandem positioning of the fixed length source is used to treat the longer length of artery. The aim of this study was to examine the dosimetry of the junction region associated with pull back treatments using a commercially available 90 Sr/Y catheter based intravascular brachytherapy source train. Dose profiles were calculated, using the Monte Carlo code MCNP4B, at radial distances of 1.5, 2.0, and 2.5 mm for pull back techniques using 2.5 mm overlapping, abutting, and 2.5 mm spaced source trains. Results at the protocol prescription radius of 2 mm showed a junction dose elevated 61% above prescription for 2.5 mm overlapping source trains. For 2.5 mm spaced trains, this figure falls to 64% below prescription dose. In contrast, abutted source trains exhibited only a 1% depression below prescription dose in the junction region. The reference point dose rate per unit activity of this source was found to be consistent with previous studies

  7. UNIDROITED POSITION AS A SOURCE OF CONTRACT LAW IN THE FUTURE OF INDONESIAN CONTRACT LAW AMANDEMENT

    OpenAIRE

    N. Ike Kusmiati

    2018-01-01

    [Unidroited Position As A Source Of Contract Law In The Future Of Indonesian Contract Law Amandement] Business transaction often faced the issue of ensuring that the rights and obligation are fulfilled as the agreement as agreed, especially when facing the difficulties of the rights and obligation of the parties due to different legal system between countries. Thereore, to answer the problems  the parties will seek legal sources, namely book III of the Civil Code in addition to studying and u...

  8. Consumer perception of genetically modified organisms and sources of information.

    Science.gov (United States)

    Wunderlich, Shahla; Gatto, Kelsey A

    2015-11-01

    Genetically modified organisms (GMOs) have been available for commercial purchase since the 1990s, allowing producers to increase crop yields through bioengineering that creates herbicide-resistant and insect-resistant varieties. However, consumer knowledge about GMOs has not increased at the same rate as the adoption of GMO crops. Consumers worldwide are displaying limited understanding, misconceptions, and even unfamiliarity with GMO food products. Many consumers report that they receive information about GMO food products from the media, Internet, and other news sources. These sources may be less reliable than scientific experts whom consumers trust more to present the facts. Although many in the United States support mandatory GMO labeling (similar to current European standards), consumer awareness of current GMO labeling is low. A distinction must also be made between GMO familiarity and scientific understanding, because those who are more familiar with it tend to be more resistant to bioengineering, whereas those with higher scientific knowledge scores tend to have less negative attitudes toward GMOs. This brings to question the relation between scientific literacy, sources of information, and overall consumer knowledge and perception of GMO foods. © 2015 American Society for Nutrition.

  9. Deaf Adolescents' Learning of Cardiovascular Health Information: Sources and Access Challenges.

    Science.gov (United States)

    Smith, Scott R; Kushalnagar, Poorna; Hauser, Peter C

    2015-10-01

    Deaf individuals have more cardiovascular risks than the general population that are believed to be related to their cardiovascular health knowledge disparities. This phenomenological study describes where 20 deaf sign language-using adolescents from Rochester, New York, many who possess many positive characteristics to support their health literacy, learn cardiovascular health information and their lived experiences accessing health information. The goal is to ultimately use this information to improve the delivery of cardiovascular health education to this population and other deaf adolescents at a higher risk for weak health literacy. Deaf bilingual researchers interviewed deaf adolescents, transcribed and coded the data, and described the findings. Five major sources of cardiovascular health information were identified including family, health education teachers, healthcare providers, printed materials, and informal sources. Despite possessing advantageous characteristics contributing to stronger health literacy, study participants described significant challenges with accessing health information from each source. They also demonstrated inconsistencies in their cardiovascular health knowledge, especially regarding heart attack, stroke, and cholesterol. These findings suggest a great need for additional public funding to research deaf adolescents' informal health-related learning, develop accessible and culturally appropriate health surveys and health education programming, improve interpreter education, and disseminate information through social media. © The Author 2015. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

  10. Deaf Adolescents’ Learning of Cardiovascular Health Information: Sources and Access Challenges

    Science.gov (United States)

    Smith, Scott R.; Kushalnagar, Poorna; Hauser, Peter C.

    2015-01-01

    Deaf individuals have more cardiovascular risks than the general population that are believed to be related to their cardiovascular health knowledge disparities. This phenomenological study describes where 20 deaf sign language-using adolescents from Rochester, New York, many who possess many positive characteristics to support their health literacy, learn cardiovascular health information and their lived experiences accessing health information. The goal is to ultimately use this information to improve the delivery of cardiovascular health education to this population and other deaf adolescents at a higher risk for weak health literacy. Deaf bilingual researchers interviewed deaf adolescents, transcribed and coded the data, and described the findings. Five major sources of cardiovascular health information were identified including family, health education teachers, healthcare providers, printed materials, and informal sources. Despite possessing advantageous characteristics contributing to stronger health literacy, study participants described significant challenges with accessing health information from each source. They also demonstrated inconsistencies in their cardiovascular health knowledge, especially regarding heart attack, stroke, and cholesterol. These findings suggest a great need for additional public funding to research deaf adolescents’ informal health-related learning, develop accessible and culturally appropriate health surveys and health education programming, improve interpreter education, and disseminate information through social media. PMID:26048900

  11. Misleading by Omission: Rethinking the Obligation to Inform Research Subjects about Funding Sources.

    Science.gov (United States)

    Manson, Neil C

    2017-11-15

    Informed consent requirements for medical research have expanded over the past half-century. The Declaration of Helsinki now includes an explicit positive obligation to inform subjects about funding sources. This is problematic in a number of ways and seems to oblige researchers to disclose information irrelevant to most consent decisions. It is argued here that such a problematic obligation involves an "informational fallacy." The aim in the second part of the paper is to provide a better approach to making sense of how a failure to inform about funding sources wrongs subjects: by making appeals to obligations to refrain from misleading by omission. This alternative approach-grounded in a general obligation to refrain from misleading, an obligation that is independent of informed consent-provides a basis for a norm that protects subjects' interests, without the informational fallacy. The approach developed here avoids the problems identified with the currently specified general obligation to inform about funding sources. © The Author 2017. Published by Oxford University Press, on behalf of the Journal of Medicine and Philosophy Inc. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.

  12. The Source and Credibility of Colorectal Cancer Information on Twitter.

    Science.gov (United States)

    Park, SoHyun; Oh, Heung-Kwon; Park, Gibeom; Suh, Bongwon; Bae, Woo Kyung; Kim, Jin Won; Yoon, Hyuk; Kim, Duck-Woo; Kang, Sung-Bum

    2016-02-01

    Despite the rapid penetration of social media in modern life, there has been limited research conducted on whether social media serves as a credible source of health information. In this study, we propose to identify colorectal cancer information on Twitter and assess its informational credibility. We collected Twitter messages containing colorectal cancer-related keywords, over a 3-month period. A review of sample tweets yielded content and user categorization schemes. The results of the sample analysis were applied to classify all collected tweets and users, using a machine learning technique. The credibility of the information in the sampled tweets was evaluated. A total of 76,119 tweets were analyzed. Individual users authored the majority of tweets (n = 68,982, 90.6%). They mostly tweeted about news articles/research (n = 16,761, 22.0%) and risk/prevention (n = 14,767, 19.4%). Medical professional users generated only 2.0% of total tweets (n = 1509), and medical institutions rarely tweeted (n = 417, 0.6%). Organizations tended to tweet more about information than did individuals (85.2% vs 63.1%; P users. Coupled with the Internet's potential to increase social support, Twitter may contribute to enhancing public health and empowering users, when used with proper caution.

  13. A comparison of positive vicarious learning and verbal information for reducing vicariously learned fear

    OpenAIRE

    Reynolds, Gemma; Wasely, David; Dunne, Guler; Askew, Chris

    2017-01-01

    Research with children has demonstrated that both positive vicarious learning (modelling) and positive verbal information can reduce children’s acquired fear responses for a particular stimulus. However, this fear reduction appears to be more effective when the intervention pathway matches the initial fear learning pathway. That is, positive verbal information is a more effective intervention than positive modelling when fear is originally acquired via negative verbal information. Research ha...

  14. Multisensory softness perceived compliance from multiple sources of information

    CERN Document Server

    Luca, Massimiliano Di

    2014-01-01

    Offers a unique multidisciplinary overview of how humans interact with soft objects and how multiple sensory signals are used to perceive material properties, with an emphasis on object deformability. The authors describe a range of setups that have been employed to study and exploit sensory signals involved in interactions with compliant objects as well as techniques to simulate and modulate softness - including a psychophysical perspective of the field. Multisensory Softness focuses on the cognitive mechanisms underlying the use of multiple sources of information in softness perception. D

  15. Cross-checking different sources of mobility information.

    Directory of Open Access Journals (Sweden)

    Maxime Lenormand

    Full Text Available The pervasive use of new mobile devices has allowed a better characterization in space and time of human concentrations and mobility in general. Besides its theoretical interest, describing mobility is of great importance for a number of practical applications ranging from the forecast of disease spreading to the design of new spaces in urban environments. While classical data sources, such as surveys or census, have a limited level of geographical resolution (e.g., districts, municipalities, counties are typically used or are restricted to generic workdays or weekends, the data coming from mobile devices can be precisely located both in time and space. Most previous works have used a single data source to study human mobility patterns. Here we perform instead a cross-check analysis by comparing results obtained with data collected from three different sources: Twitter, census, and cell phones. The analysis is focused on the urban areas of Barcelona and Madrid, for which data of the three types is available. We assess the correlation between the datasets on different aspects: the spatial distribution of people concentration, the temporal evolution of people density, and the mobility patterns of individuals. Our results show that the three data sources are providing comparable information. Even though the representativeness of Twitter geolocated data is lower than that of mobile phone and census data, the correlations between the population density profiles and mobility patterns detected by the three datasets are close to one in a grid with cells of 2×2 and 1×1 square kilometers. This level of correlation supports the feasibility of interchanging the three data sources at the spatio-temporal scales considered.

  16. Use of ultrasonic array method for positioning multiple partial discharge sources in transformer oil.

    Science.gov (United States)

    Xie, Qing; Tao, Junhan; Wang, Yongqiang; Geng, Jianghai; Cheng, Shuyi; Lü, Fangcheng

    2014-08-01

    Fast and accurate positioning of partial discharge (PD) sources in transformer oil is very important for the safe, stable operation of power systems because it allows timely elimination of insulation faults. There is usually more than one PD source once an insulation fault occurs in the transformer oil. This study, which has both theoretical and practical significance, proposes a method of identifying multiple PD sources in the transformer oil. The method combines the two-sided correlation transformation algorithm in the broadband signal focusing and the modified Gerschgorin disk estimator. The method of classification of multiple signals is used to determine the directions of arrival of signals from multiple PD sources. The ultrasonic array positioning method is based on the multi-platform direction finding and the global optimization searching. Both the 4 × 4 square planar ultrasonic sensor array and the ultrasonic array detection platform are built to test the method of identifying and positioning multiple PD sources. The obtained results verify the validity and the engineering practicability of this method.

  17. The hypertext information system on pulsed neutron sources and scientific investigations based on these sources

    Energy Technology Data Exchange (ETDEWEB)

    Litvinenko, E I; Astakhov, Yu A [Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research, Dubna (Russian Federation); Akishina, E P [Moscow State Engineering Physics Institute (Technical University), Moscow (Russian Federation); Semenov, R N; Smol` kov, I S [International University ` Dubna` , Dubna (Russian Federation)

    1998-10-01

    The work on the creation of the hypertext information system has been performed on the basis of the web-server of the Frank Laboratory of Neutron Physics, JINR. The initial project proposed the creation of HTML information resources and did not consider the usage of any database for the information management. During the project implementation it became obvious that the system should have well defined structured informational model and it might be helpful to imply the relational database as a part of the system. The ORACLE server at the Laboratory of Computing Techniques and Automation (LCTA) of the JINR has been used for this task. Now we have a set of ORACLE tables designed using CASE tools for the informational model of the system, structured information about neutron sources, neutron instruments, printed publications and URL addresses. We have also the web interface to these tables using free ware gateway ORALINK installed on our Pentium PC with Windows NT and some tools to administer database and view pictures stored in the tables. We took into account NeXuS specifications while tried to design the informational model of the system, and we continue to work on its creation 15 refs., 2 figs., 1 tab. Submitted to the Proceedings of the International Workshop on New Opportunities for Better User Group Software (NOBUGS`97), 10-12 Dec 1997, USA

  18. The hypertext information system on pulsed neutron sources and scientific investigations based on these sources

    International Nuclear Information System (INIS)

    Litvinenko, E.I; Astakhov, Yu.A.; Akishina, E.P.; Semenov, R.N.; Smol'kov, I.S.

    1998-01-01

    The work on the creation of the hypertext information system has been performed on the basis of the web-server of the Frank Laboratory of Neutron Physics, JINR. The initial project proposed the creation of HTML information resources and did not consider the usage of any database for the information management. During the project implementation it became obvious that the system should have well defined structured informational model and it might be helpful to imply the relational database as a part of the system. The ORACLE server at the Laboratory of Computing Techniques and Automation (LCTA) of the JINR has been used for this task. Now we have a set of ORACLE tables designed using CASE tools for the informational model of the system, structured information about neutron sources, neutron instruments, printed publications and URL addresses. We have also the web interface to these tables using free ware gateway ORALINK installed on our Pentium PC with Windows NT and some tools to administer database and view pictures stored in the tables. We took into account NeXuS specifications while tried to design the informational model of the system, and we continue to work on its creation

  19. Source apportionment and location by selective wind sampling and Positive Matrix Factorization.

    Science.gov (United States)

    Venturini, Elisa; Vassura, Ivano; Raffo, Simona; Ferroni, Laura; Bernardi, Elena; Passarini, Fabrizio

    2014-10-01

    In order to determine the pollution sources in a suburban area and identify the main direction of their origin, PM2.5 was collected with samplers coupled with a wind select sensor and then subjected to Positive Matrix Factorization (PMF) analysis. In each sample, soluble ions, organic carbon, elemental carbon, levoglucosan, metals, and Polycyclic Aromatic Hydrocarbons (PAHs) were determined. PMF results identified six main sources affecting the area: natural gas home appliances, motor vehicles, regional transport, biomass combustion, manufacturing activities, and secondary aerosol. The connection of factor temporal trends with other parameters (i.e., temperature, PM2.5 concentration, and photochemical processes) confirms factor attributions. PMF analysis indicated that the main source of PM2.5 in the area is secondary aerosol. This should be mainly due to regional contributions, owing to both the secondary nature of the source itself and the higher concentration registered in inland air masses. The motor vehicle emission source contribution is also important. This source likely has a prevalent local origin. The most toxic determined components, i.e., PAHs, Cd, Pb, and Ni, are mainly due to vehicular traffic. Even if this is not the main source in the study area, it is the one of greatest concern. The application of PMF analysis to PM2.5 collected with this new sampling technique made it possible to obtain more detailed results on the sources affecting the area compared to a classical PMF analysis.

  20. Application of positive matrix factorization to identify potential sources of PAHs in soil of Dalian, China

    International Nuclear Information System (INIS)

    Wang Degao; Tian Fulin; Yang Meng; Liu Chenlin; Li Yifan

    2009-01-01

    Soil derived sources of polycyclic aromatic hydrocarbons (PAHs) in the region of Dalian, China were investigated using positive matrix factorization (PMF). Three factors were separated based on PMF for the statistical investigation of the datasets both in summer and winter. These factors were dominated by the pattern of single sources or groups of similar sources, showing seasonal and regional variations. The main sources of PAHs in Dalian soil in summer were the emissions from coal combustion average (46%), diesel engine (30%), and gasoline engine (24%). In winter, the main sources were the emissions from coal-fired boiler (72%), traffic average (20%), and gasoline engine (8%). These factors with strong seasonality indicated that coal combustion in winter and traffic exhaust in summer dominated the sources of PAHs in soil. These results suggested that PMF model was a proper approach to identify the sources of PAHs in soil. - PMF model is a proper approach to identify potential sources of PAHs in soil based on the PAH profiles measured in the field and those published in the literature.

  1. The determination of a neutron source position in an unknown homogeneous medium: The planar case

    International Nuclear Information System (INIS)

    Dubinski, S.; Talmor, A.; Presler, O.; Tshuva, A.; Yaar, I.; Orion, I.; Alfassi, Z.B.

    2005-01-01

    The possibility of localization of an unknown neutron source in various bulky homogeneous media (box) was studied. For the planar case, two 3 He detectors on the opposite faces of the box were used. A constant polypropylene shield around the box and detectors was used to eliminate the varying contribution from the environment to increase count rates of the detectors and to protect the experimentalist. It is shown that the location of a single small neutron emitting source in a large box can be found to a better than 7% by using two neutron detectors positioned on parallel faces of the box, coplanar with the source. The localization requires measurement of the count rate of both the unknown source and an extra source positioned on one of the faces of the box. The localization is based on the finding that the ratio of the count rates of the two detectors is an exponential function of the distance of the source from one of the detectors

  2. A high-efficiency positive (negative) surface ionization source for radioactive ion beam (abstract)a

    International Nuclear Information System (INIS)

    Alton, G.D.; Mills, G.D.

    1996-01-01

    A versatile, new concept, spherical-geometry, positive (negative) surface-ionization source has been designed and fabricated which will have the capability of generating both positive- and negative-ion beams without mechanical changes to the source. The source utilizes a highly permeable, high-work-function Ir ionizer (φ≡5.29 eV) for ionizing highly electropositive atoms/molecules; while for negative-surface ionization, the work function is lowered to φ≡1.43 eV by continually feeding cesium vapor through the ionizer matrix. The use of this technique for negative ion beam generation has the potential of overcoming the chronic poisoning effects experienced with LaB 6 while enhancing considerably the efficiency for negative surface ionization of atoms and molecules with intermediate electron affinities. The flexibility of operation in either mode makes it especially attractive for radioactive ion beam applications and, therefore, the source will be used as a complementary replacement for the high-temperature electron impact ionization sources presently in use at the Holifield radioactive beam facility. The design features and operational principles of the source will be described in this report. copyright 1996 American Institute of Physics

  3. A positive (negative) surface ionization source concept for radioactive ion beam generation

    International Nuclear Information System (INIS)

    Alton, G.D.; Mills, G.D.

    1996-01-01

    A novel, versatile, new concept, spherical-geometry, positive (negative) surface-ionization source has been designed and fabricated which will have the capability of generating both positive- and negative-ion beams without mechanical changes to the source. The source utilizes a highly permeable, high-work-function Ir ionizer (φ ≅ 5.29 eV) for ionizing highly electropositive atoms/molecules; while for negative-surface ionization, the work function is lowered by continually feeding a highly electropositive vapor through the ionizer matrix. The use of this technique to effect low work function surfaces for negative ion beam generation has the potential of overcoming the chronic poisoning effects experienced with LaB 6 while enhancing the probability for negative ion formation of atomic and molecular species with low to intermediate electron affinities. The flexibility of operation in either mode makes it especially attractive for radioactive ion beam (RIB) applications and, therefore, the source will be used as a complementary replacement for the high-temperature electron impact ionization sources presently in the use at the Holifield radioactive ion beam facility (HRIBF). The design features and operational principles of the source are described in this report. (orig.)

  4. Indoor air quality environmental information handbook: Combustion sources

    Energy Technology Data Exchange (ETDEWEB)

    1990-06-01

    This environmental information handbook was prepared to assist both the non-technical reader (i.e., homeowner) and technical persons (such as researchers, policy analysts, and builders/designers) in understanding the current state of knowledge regarding combustion sources of indoor air pollution. Quantitative and descriptive data addressing the emissions, indoor concentrations, factors influencing indoor concentrations, and health effects of combustion-generated pollutants are provided. In addition, a review of the models, controls, and standards applicable to indoor air pollution from combustion sources is presented. The emphasis is on the residential environment. The data presented here have been compiled from government and privately-funded research results, conference proceedings, technical journals, and recent publications. It is intended to provide the technical reader with a comprehensive overview and reference source on the major indoor air quality aspects relating to indoor combustion activities, including tobacco smoking. In addition, techniques for determining potential concentrations of pollutants in residential settings are presented. This is an update of a 1985 study documenting the state of knowledge of combustion-generated pollutants in the indoor environment. 191 refs., 51 figs., 71 tabs.

  5. Predictors for the Number of Warning Information Sources During Tornadoes.

    Science.gov (United States)

    Cong, Zhen; Luo, Jianjun; Liang, Daan; Nejat, Ali

    2017-04-01

    People may receive tornado warnings from multiple information sources, but little is known about factors that affect the number of warning information sources (WISs). This study examined predictors for the number of WISs with a telephone survey on randomly sampled residents in Tuscaloosa, Alabama, and Joplin, Missouri, approximately 1 year after both cities were struck by violent tornadoes (EF4 and EF5) in 2011. The survey included 1006 finished interviews and the working sample included 903 respondents. Poisson regression and Zero-Inflated Poisson regression showed that older age and having an emergency plan predicted more WISs in both cities. Education, marital status, and gender affected the possibilities of receiving warnings and the number of WISs either in Joplin or in Tuscaloosa. The findings suggest that social disparity affects the access to warnings not only with respect to the likelihood of receiving any warnings but also with respect to the number of WISs. In addition, historical and social contexts are important for examining predictors for the number of WISs. We recommend that the number of WISs should be regarded as an important measure to evaluate access to warnings in addition to the likelihood of receiving warnings. (Disaster Med Public Health Preparedness. 2017;11:168-172).

  6. Optimization of Ion Source Head Position in the Central Region of DECY-13 Cyclotron

    Directory of Open Access Journals (Sweden)

    S Silakhuddin

    2017-08-01

    Full Text Available Optimization of the ion source head position of the DECY-13 Cyclotron in the central region has been carried out based on simulation process using a particle tracking program written in Scilab 5.2.1. The simulated particle was the H- ion that was accelerated in DECY-13 Cyclotron. The input for the program were the magnetic field and the electric field in the central region that were calculated by Opera-3D software package and TOSCA module. The optimized position of ion source head position is in a radius of 2 cm relative to the zero point of the magnet and at a distance of 4 mm relative to the puller. This result can be useful for determining the configuration of the parts in the central region when it is tested for generating the first ion beam in the future.

  7. Strategic positioning. Part 1: The sources of value under managed care.

    Science.gov (United States)

    Kauer, R T; Berkowitz, E

    1997-01-01

    Part 1 of this series organizes and discusses the sources of value against a background of an evolving managed care market. Part 2 will present, in more detail, the marketing and financial challenges to organizational positioning and performance across the four stages of managed care. What are the basic principles or tenets of value and how do they apply to the health care industry? Why is strategic positioning so important to health care organizations struggling in a managed care environment and what are the sources of value? Service motivated employees and the systems that educate them represent a stronger competitive advantage than having assets and technology that are available to anyone. As the health care marketplace evolves, organizations must develop a strategic position that will provide such value and for which the customer will be willing to pay.

  8. An attempt to determine positions of aerosol source by the PIXE analysis

    International Nuclear Information System (INIS)

    Matsuyama, S.; Tokai, Y.; Ishii, K.

    1999-01-01

    Aerosols were continuously collected for 2 or 3 hours during the periods of 4-27 August 1997 and of 23 March-2 April 1998 at a suburb of Sendai City (east 10 km from Sendai), and meteorological data such as wind directions, wind velocities, etc were measured at the same time. The collected aerosol samples were analyzed by the particle-induced X-ray emission (PIXE) method. Fourteen elements (S, Cl, K, Ca, Ti, V, Cr, Mn, Fe, Ni, Cu, Zn, Hg and Pb) were contained in these samples. The elemental concentrations increased in the daytime and decreased at night. It coincided with the time variation of people movement. The concentrations of Mn, Fe, Zn and Pb elements depended strongly on the direction of wind and their distributions for wind directions reflected to the position of aerosol sources. This result suggests that the position of aerosol source can be determined by measuring aerosols and wind directions at the many positions. (author)

  9. Healthy eating in Ukraine: attitudes, barriers and information sources.

    Science.gov (United States)

    Biloukha, O; Utermohlen, V

    2001-04-01

    To identify the major perceived influences on food choice, to examine the use of and trust in information sources concerning healthy eating, and to assess attitudes towards and barriers to adopting healthy eating practices in a post-USSR country (Ukraine). A survey of an urban adult population. The questions were adopted from the Pan-European Union (EU) Survey of Consumer Attitudes to Food, Nutrition and Health (1995-1996). Lviv city, Ukraine. The survey included 296 adults (84 males, 212 females) aged 18-55 years; they were primarily college students and subjects with tertiary education--the groups most likely to be both interested in healthy eating and affected by current socioeconomic downturns. The major factors in food choice were: 'quality/freshness' (cited by 80%), 'price' (58%) and 'taste' (47%); only 34% cited 'trying to eat healthily'. More older people cited 'price' than 'quality/freshness', and men were more likely than women to cite 'taste'. Sources of healthy eating information included: 'relatives/friends' (cited by 65%, trusted by 85%) and health professionals (trusted by 92%, but used by only 35%); while advertising was the least trusted source (cited by 28%). Fifty-three per cent of respondents considered their diet to be healthy enough without further changes; 50% thought of the nutritional aspects of the food they ate; fewer women than men considered their diet healthy, and more women than men thought about nutrition. Barriers to healthy eating included: 'cost' (cited by 65%), 'lack of time' (55%), 'self-control' (54%), 'selection influences' (41%), 'lack of knowledge' (32%), 'unpleasant foods' and 'resistance to change' (both 30%). Strategies to encourage healthy eating in this population should involve word-of-mouth nutrition education concerning low-cost healthy alternatives.

  10. Trust in the source of received information as a factor related to public perception of shale gas drilling

    Directory of Open Access Journals (Sweden)

    Sylwia Mrozowska

    2016-11-01

    Full Text Available Three studies were carried out to examine whether trust in sources of information on technology is related to positive attitudes toward shale gas drilling. Factors we controlled for included: scientific knowledge, universalism and security as personal values, attitudes towards science, personal and group identity fusion, political views, and valence of the media information people received. We assumed hypothesis 1, that trust in the source of the information would be a significant predictor of positive attitudes toward shale gas, above and beyond other variables we controlled for (study 1. Also, we stated hypothesis 2, that trust in the source of information on technology in question would be related to more positive attitudes toward shale gas when more positive information is provided, and to more negative perception of gas drilling when less positive information is presented. Thus, we expected an interaction effect between trust and valence of information presented to participants (studies 2 and 3. Participants completed questionnaires in Poland (studies 1 and 2 and the USA (study 3. They where recruited from communities in regions where shale gas industry could potentially be developed (study 2 or has been developed (study 3. The results showed: (a a significant relationship between trust in negative information on shale gas and negative attitudes toward extraction; (b a significant interaction between trust and valence of information on shale gas. That is, trust in the source of information was related to more positive attitudes toward shale gas when a positive view is provided, and to more negative attitudes when undesirable information is presented.

  11. Classification of hadith into positive suggestion, negative suggestion, and information

    Science.gov (United States)

    Faraby, Said Al; Riviera Rachmawati Jasin, Eliza; Kusumaningrum, Andina; Adiwijaya

    2018-03-01

    As one of the Muslim life guidelines, based on the meaning of its sentence(s), a hadith can be viewed as a suggestion for doing something, or a suggestion for not doing something, or just information without any suggestion. In this paper, we tried to classify the Bahasa translation of hadith into the three categories using machine learning approach. We tried stemming and stopword removal in preprocessing, and TF-IDF of unigram, bigram, and trigram as the extracted features. As the classifier, we compared between SVM and Neural Network. Since the categories are new, so in order to compare the results of the previous pipelines, we created a baseline classifier using simple rule-based string matching technique. The rule-based algorithm conditions on the occurrence of words such as “janganlah, sholatlah, and so on” to determine the category. The baseline method achieved F1-Score of 0.69, while the best F1-Score from the machine learning approach was 0.88, and it was produced by SVM model with the linear kernel.

  12. Positional information generated by spatially distributed signaling cascades.

    Directory of Open Access Journals (Sweden)

    Javier Muñoz-García

    2009-03-01

    Full Text Available The temporal and stationary behavior of protein modification cascades has been extensively studied, yet little is known about the spatial aspects of signal propagation. We have previously shown that the spatial separation of opposing enzymes, such as a kinase and a phosphatase, creates signaling activity gradients. Here we show under what conditions signals stall in the space or robustly propagate through spatially distributed signaling cascades. Robust signal propagation results in activity gradients with long plateaus, which abruptly decay at successive spatial locations. We derive an approximate analytical solution that relates the maximal amplitude and propagation length of each activation profile with the cascade level, protein diffusivity, and the ratio of the opposing enzyme activities. The control of the spatial signal propagation appears to be very different from the control of transient temporal responses for spatially homogenous cascades. For spatially distributed cascades where activating and deactivating enzymes operate far from saturation, the ratio of the opposing enzyme activities is shown to be a key parameter controlling signal propagation. The signaling gradients characteristic for robust signal propagation exemplify a pattern formation mechanism that generates precise spatial guidance for multiple cellular processes and conveys information about the cell size to the nucleus.

  13. PhySIC_IST: cleaning source trees to infer more informative supertrees.

    Science.gov (United States)

    Scornavacca, Celine; Berry, Vincent; Lefort, Vincent; Douzery, Emmanuel J P; Ranwez, Vincent

    2008-10-04

    Supertree methods combine phylogenies with overlapping sets of taxa into a larger one. Topological conflicts frequently arise among source trees for methodological or biological reasons, such as long branch attraction, lateral gene transfers, gene duplication/loss or deep gene coalescence. When topological conflicts occur among source trees, liberal methods infer supertrees containing the most frequent alternative, while veto methods infer supertrees not contradicting any source tree, i.e. discard all conflicting resolutions. When the source trees host a significant number of topological conflicts or have a small taxon overlap, supertree methods of both kinds can propose poorly resolved, hence uninformative, supertrees. To overcome this problem, we propose to infer non-plenary supertrees, i.e. supertrees that do not necessarily contain all the taxa present in the source trees, discarding those whose position greatly differs among source trees or for which insufficient information is provided. We detail a variant of the PhySIC veto method called PhySIC_IST that can infer non-plenary supertrees. PhySIC_IST aims at inferring supertrees that satisfy the same appealing theoretical properties as with PhySIC, while being as informative as possible under this constraint. The informativeness of a supertree is estimated using a variation of the CIC (Cladistic Information Content) criterion, that takes into account both the presence of multifurcations and the absence of some taxa. Additionally, we propose a statistical preprocessing step called STC (Source Trees Correction) to correct the source trees prior to the supertree inference. STC is a liberal step that removes the parts of each source tree that significantly conflict with other source trees. Combining STC with a veto method allows an explicit trade-off between veto and liberal approaches, tuned by a single parameter.Performing large-scale simulations, we observe that STC+PhySIC_IST infers much more informative

  14. Exploiting semantic linkages among multiple sources for semantic information retrieval

    Science.gov (United States)

    Li, JianQiang; Yang, Ji-Jiang; Liu, Chunchen; Zhao, Yu; Liu, Bo; Shi, Yuliang

    2014-07-01

    The vision of the Semantic Web is to build a global Web of machine-readable data to be consumed by intelligent applications. As the first step to make this vision come true, the initiative of linked open data has fostered many novel applications aimed at improving data accessibility in the public Web. Comparably, the enterprise environment is so different from the public Web that most potentially usable business information originates in an unstructured form (typically in free text), which poses a challenge for the adoption of semantic technologies in the enterprise environment. Considering that the business information in a company is highly specific and centred around a set of commonly used concepts, this paper describes a pilot study to migrate the concept of linked data into the development of a domain-specific application, i.e. the vehicle repair support system. The set of commonly used concepts, including the part name of a car and the phenomenon term on the car repairing, are employed to build the linkage between data and documents distributed among different sources, leading to the fusion of documents and data across source boundaries. Then, we describe the approaches of semantic information retrieval to consume these linkages for value creation for companies. The experiments on two real-world data sets show that the proposed approaches outperform the best baseline 6.3-10.8% and 6.4-11.1% in terms of top five and top 10 precisions, respectively. We believe that our pilot study can serve as an important reference for the development of similar semantic applications in an enterprise environment.

  15. Social network profiles as information sources for adolescents' offline relations.

    Science.gov (United States)

    Courtois, Cédric; All, Anissa; Vanwynsberghe, Hadewijch

    2012-06-01

    This article presents the results of a study concerning the use of online profile pages by adolescents to know more about "offline" friends and acquaintances. Previous research has indicated that social networking sites (SNSs) are used to gather information on new online contacts. However, several studies have demonstrated a substantial overlap between offline and online social networks. Hence, we question whether online connections are meaningful in gathering information on offline friends and acquaintances. First, the results indicate that a combination of passive uncertainty reduction (monitoring a target's profile) and interactive uncertainty reduction (communication through the target's profile) explains a considerable amount of variance in the level of uncertainty about both friends and acquaintances. More specifically, adolescents generally get to know much more about their acquaintances. Second, the results of online uncertainty reduction positively affect the degree of self-disclosure, which is imperative in building a solid friend relation. Further, we find that uncertainty reduction strategies positively mediate the effect of social anxiety on the level of certainty about friends. This implies that socially anxious teenagers benefit from SNSs by getting the conditions right to build a more solid relation with their friends. Hence, we conclude that SNSs play a substantial role in today's adolescents' everyday interpersonal communication.

  16. Head position in the MEG helmet affects the sensitivity to anterior sources.

    Science.gov (United States)

    Marinkovic, K; Cox, B; Reid, K; Halgren, E

    2004-11-30

    Current MEG instruments derive the whole-head coverage by utilizing a helmet-shaped opening at the bottom of the dewar. These helmets, however, are quite a bit larger than most people's heads so subjects commonly lean against the back wall of the helmet in order to maintain a steady position. In such cases the anterior brain sources may be too distant to be picked up by the sensors reliably. Potential "invisibility" of the frontal and anterior temporal sources may be particularly troublesome for the studies of cognition and language, as they are subserved significantly by these areas. We examined the sensitivity of the distributed anatomically-constrained MEG (aMEG) approach to the head position ("front" vs. "back") secured within a helmet with custom-tailored bite-bars during a lexical decision task. The anterior head position indeed resulted in much greater sensitivity to language-related activity in frontal and anterior temporal locations. These results emphasize the need to adjust the head position in the helmet in order to maximize the "visibility" of the sources in the anterior brain regions in cognitive and language tasks.

  17. Investigation of source position uncertainties & balloon deformation in MammoSite brachytherapy on treatment effectiveness

    International Nuclear Information System (INIS)

    Bensaleh, S.

    2010-01-01

    The MammoSite ® breast high dose rate brachytherapy is used in treatment of early-stage breast cancer. The tumour bed volume is irradiated with high dose per fraction in a relatively small number of fractions. Uncertainties in the source positioning and MammoSite balloon deformation will alter the prescribed dose within the treated volume. They may also expose the normal tissues in balloon proximity to excessive dose. The purpose of this work is to explore the impact of these two uncertainties on the MammoSite dose distribution in the breast using dose volume histograms and Monte Carlo simulations. The Lyman–Kutcher and relative seriality models were employed to estimate the normal tissues complications associated with the MammoSite dose distributions. The tumour control probability was calculated using the Poisson model. This study gives low probabilities for developing heart and lung complications. The probability of complications of the skin and normal breast tissues depends on the location of the source inside the balloon and the volume receiving high dose. Incorrect source position and balloon deformation had significant effect on the prescribed dose within the treated volume. A 4 mm balloon deformation resulted in reduction of the tumour control probability by 24%. Monte Carlo calculations using EGSnrc showed that a deviation of the source by 1 mm caused approximately 7% dose reduction in the treated target volume at 1 cm from the balloon surface. In conclusion, accurate positioning of the 192 Ir source at the balloon centre and minimal balloon deformation are critical for proper dose delivery with the MammoSite brachytherapy applicator. On the basis of this study, we suggest that the MammoSite treatment protocols should allow for a balloon deformation of ≤2 mm and a maximum source deviation of ≤1 mm.

  18. INFLUENCE OF THE GALACTIC GRAVITATIONAL FIELD ON THE POSITIONAL ACCURACY OF EXTRAGALACTIC SOURCES

    International Nuclear Information System (INIS)

    Larchenkova, Tatiana I.; Lutovinov, Alexander A.; Lyskova, Natalya S.

    2017-01-01

    We investigate the influence of random variations of the Galactic gravitational field on the apparent celestial positions of extragalactic sources. The basic statistical characteristics of a stochastic process (first-order moments, an autocorrelation function and a power spectral density) are used to describe a light ray deflection in a gravitational field of randomly moving point masses as a function of the source coordinates. We map a 2D distribution of the standard deviation of the angular shifts in positions of distant sources (including reference sources of the International Celestial Reference Frame) with respect to their true positions. For different Galactic matter distributions the standard deviation of the offset angle can reach several tens of μ as (microarcsecond) toward the Galactic center, decreasing down to 4–6 μ as at high galactic latitudes. The conditional standard deviation (“jitter”) of 2.5 μ as is reached within 10 years at high galactic latitudes and within a few months toward the inner part of the Galaxy. The photometric microlensing events are not expected to be disturbed by astrometric random variations anywhere except the inner part of the Galaxy as the Einstein–Chvolson times are typically much shorter than the jittering timescale. While a jitter of a single reference source can be up to dozens of μ as over some reasonable observational time, using a sample of reference sources would reduce the error in relative astrometry. The obtained results can be used for estimating the physical upper limits on the time-dependent accuracy of astrometric measurements.

  19. INFLUENCE OF THE GALACTIC GRAVITATIONAL FIELD ON THE POSITIONAL ACCURACY OF EXTRAGALACTIC SOURCES

    Energy Technology Data Exchange (ETDEWEB)

    Larchenkova, Tatiana I. [ASC of P.N.Lebedev Physical Institute, Leninskiy prospect 53, Moscow 119991 (Russian Federation); Lutovinov, Alexander A.; Lyskova, Natalya S. [Space Research Institute, Russian Academy of Sciences, Profsoyuznaya 84/32, 117997 Moscow (Russian Federation)

    2017-01-20

    We investigate the influence of random variations of the Galactic gravitational field on the apparent celestial positions of extragalactic sources. The basic statistical characteristics of a stochastic process (first-order moments, an autocorrelation function and a power spectral density) are used to describe a light ray deflection in a gravitational field of randomly moving point masses as a function of the source coordinates. We map a 2D distribution of the standard deviation of the angular shifts in positions of distant sources (including reference sources of the International Celestial Reference Frame) with respect to their true positions. For different Galactic matter distributions the standard deviation of the offset angle can reach several tens of μ as (microarcsecond) toward the Galactic center, decreasing down to 4–6 μ as at high galactic latitudes. The conditional standard deviation (“jitter”) of 2.5 μ as is reached within 10 years at high galactic latitudes and within a few months toward the inner part of the Galaxy. The photometric microlensing events are not expected to be disturbed by astrometric random variations anywhere except the inner part of the Galaxy as the Einstein–Chvolson times are typically much shorter than the jittering timescale. While a jitter of a single reference source can be up to dozens of μ as over some reasonable observational time, using a sample of reference sources would reduce the error in relative astrometry. The obtained results can be used for estimating the physical upper limits on the time-dependent accuracy of astrometric measurements.

  20. Remote sensing as a source of land cover information utilized in the universal soil loss equation

    Science.gov (United States)

    Morris-Jones, D. R.; Morgan, K. M.; Kiefer, R. W.; Scarpace, F. L.

    1979-01-01

    In this study, methods for gathering the land use/land cover information required by the USLE were investigated with medium altitude, multi-date color and color infrared 70-mm positive transparencies using human and computer-based interpretation techniques. Successful results, which compare favorably with traditional field study methods, were obtained within the test site watershed with airphoto data sources and human airphoto interpretation techniques. Computer-based interpretation techniques were not capable of identifying soil conservation practices but were successful to varying degrees in gathering other types of desired land use/land cover information.

  1. An experimental evaluation of monochromatic x-ray beam position monitors at diamond light source

    Energy Technology Data Exchange (ETDEWEB)

    Bloomer, Chris, E-mail: chris.bloomer@diamond.ac.uk; Rehm, Guenther; Dolbnya, Igor P. [Diamond Light Source Ltd, Oxfordshire (United Kingdom)

    2016-07-27

    Maintaining the stability of the X-ray beam relative to the sample point is of paramount importance for beamlines and users wanting to perform cutting-edge experiments. The ability to detect, and subsequently compensate for, variations in X-ray beam position with effective diagnostics has multiple benefits: a reduction in commissioning and start-up time, less ‘down-time’, and an improvement in the quality of acquired data. At Diamond Light Source a methodical evaluation of a selection of monochromatic X-ray Beam Position Monitors (XBPMs), using a range of position detection techniques, and from a range of suppliers, was carried out. The results of these experiments are presented, showing the measured RMS noise on the position measurement of each device for a given flux, energy, beam size, and bandwidth. A discussion of the benefits and drawbacks of each of the various devices and techniques is also included.

  2. An experimental evaluation of monochromatic x-ray beam position monitors at diamond light source

    International Nuclear Information System (INIS)

    Bloomer, Chris; Rehm, Guenther; Dolbnya, Igor P.

    2016-01-01

    Maintaining the stability of the X-ray beam relative to the sample point is of paramount importance for beamlines and users wanting to perform cutting-edge experiments. The ability to detect, and subsequently compensate for, variations in X-ray beam position with effective diagnostics has multiple benefits: a reduction in commissioning and start-up time, less ‘down-time’, and an improvement in the quality of acquired data. At Diamond Light Source a methodical evaluation of a selection of monochromatic X-ray Beam Position Monitors (XBPMs), using a range of position detection techniques, and from a range of suppliers, was carried out. The results of these experiments are presented, showing the measured RMS noise on the position measurement of each device for a given flux, energy, beam size, and bandwidth. A discussion of the benefits and drawbacks of each of the various devices and techniques is also included.

  3. Performance of a plasma opening switch in positive polarity on Gamble I using flashboard plasma sources

    International Nuclear Information System (INIS)

    Renk, T.J.

    1995-01-01

    The successful development of the Plasma Opening Switch (POS) for inductive storage applications has been largely confined to negative polarity operation. Some models of POS behavior suggest that this is because in a positive polarity coaxial configuration, the weaker magnetic field at the cathode position retards the switch opening process. This article describes experiments in which both conductor radii in the POS region were significantly reduced. Anode- and cathode-side current monitors indicate that voltages greater than open-circuit are generated at the POS position, but there is a significant amount of electron flow out of the POS, depending upon load impedance. Flow impedance analysis indicates that a relatively small gap appears in the POS plasma after switch opening. Switch performance is also compared between flashboard and carbon gun plasma sources, with the latter operated both in positive and negative polarity

  4. Influence of the radioactive source position inside the well-type ionization chamber

    International Nuclear Information System (INIS)

    Kuahara, L.T.; Correa, E.L.; Potiens, M.P.A.

    2015-01-01

    The activimeter, instrument used in radionuclide activity measurement, consists primarily of a well type ionization chamber coupled to a special electronic device. Its response, after calibration, is shown in activity units (Becquerel or Curie). The goal of this study is to verify radioactive source position influence over activity measured by this instrument. Radioactive sources measurements were made at different depths inside the ionization chamber well. Results showed maximum variation of -23 %, -28 % and -15 % for 57 Co, 133 Ba and 137 Cs, respectively. (author)

  5. Public trust in sources of information about radiation risks in the UK

    International Nuclear Information System (INIS)

    Hunt, S.; Frewer, L.J.; Shepherd, R.

    1998-01-01

    Full text of publication follows: perceptions of trust have been identified as crucial to successful risk communication. This research is concerned with establishing the degree of trust the public places in various sources of information about radiation hazards, and identifying a maximally trusted source for communicating risks about these hazards. Participants were asked directly about the degree to which they would trust information about radiation risks from a variety of sources. They were also asked about the putative components of trust: the degree of 'vested interest' they believed each source had in misinforming the public about radiation risks, and the 'degree of knowledge' they believed each source had about these risks. The results indicated that while perceptions of low 'vested interest' and high 'degree of knowledge' are important elements in determining positive trust ratings, neither alone is sufficient to guarantee a high trust rating. The implications of these findings are discussed in terms of a maximally, trusted source for risk communication that could achieve optimal 'vested interest' and 'degree of knowledge' ratings, the principal features for which are identified as independence of government and commercial organisations; high level of technical expertise; and being specifically dedicated to the interests of the public. (authors)

  6. Relationship between availability of contraceptive products and pharmacists as information sources.

    Science.gov (United States)

    Cook, Elizabeth A; Farris, Karen B; Chrischilles, Elizabeth; Aquilino, Mary

    2012-01-01

    To describe the relationship between the availability and accessibility of contraceptives in Iowa pharmacies and the extent to which pharmacists act as an information source regarding contraceptives. Descriptive, exploratory, nonexperimental study. Iowa in fall 2008. 282 pharmacists at Iowa community pharmacies. Cross-sectional survey. Contraceptive availability score, contraceptive accessibility score, and total access score. Regression analyses tested the relationships between the pharmacist information source score and the contraceptive availability, accessibility, and total access scores, controlling for geography, ownership, staff size, and average number of prescriptions per day. Significant positive relationships between the pharmacist information source score and product accessibility, product availability, and total access were observed. The relationship appeared to be driven primarily by product availability, and all were significantly influenced by pharmacy type. Significant negative relationships were found between product accessibility and independent/small chain pharmacies and mass merchandiser/grocery store pharmacies relative to large chain pharmacies. A significant negative relationship was found between independent/small chain pharmacies and the product availability score. Significant relationships were found between pharmacists' ability to act as sources of information for contraceptive products and the availability, accessibility, and overall access to contraceptives in the pharmacy.

  7. VAT regime affecting the acquisition of electronic information sources in Slovenia and in the European Union

    Directory of Open Access Journals (Sweden)

    Tilen Mandelj

    2010-01-01

    Full Text Available Tax legislation system in the Republic of Slovenia as well as that of the European Union does not keep pace with the rapid technological development. A lot of problems arise in the field of purchasing and providing access to electronic information sources, namely electronic journals which are very important to disseminate research results. Problems arising from the application of the EC Directive 2006/112 in the Slovenian legislation system are described. The goal that the Value Added Tax (VAT would not affect the international competitiveness of the EU Member states was not met. Different levels of general and reduced tax rates and even different levels of taxation of electronic information sources put Member States in unequal positions. Tax regimes in Member States and their responses to the problem of VAT are discussed. The article shows the complexity of electronic information sources which can partly be taxed as services and party as goods in electronic form. A simulation of expenditure on electronic information sources at different tax rates and possible changes of tax legislation are presented.

  8. [Internet as a source of information about infertility among infertile patients].

    Science.gov (United States)

    Talarczyk, Joanna; Hauke, Jan; Poniewaz, Marta; Serdyńska-Szuster, Monika; Pawelczyk, Leszek; Jedrzejczak, Piotr

    2012-04-01

    Around one million couples in Poland suffer from infertility People in reproductive age are most active Internet users. The aim of the study was to assess Internet habits of infertile patients. We checked to what extent infertile patients seek information about infertility on-line and what is their approach to the information found. 85 female patients treated for infertility for at least one year were surveyed. The anonymous questionnaire was designed by the authors of the publication. It consisted of questions related to medical history of the patients and sources of information about infertility they used. It also checked Internet activity of the patients and contained Beck's Depression Inventory (BDI). Chi-square test and Spearman's correlation test were used to evaluate the results. The majority of patients used Internet to find information about infertility (93%); 46% of the respondent declared Internet forums to be their main source of information about it. Patients used on-line sources of information more often than stricte medical sources. Internet influenced their relation with the physician. 64% of patients verified on-line information and treatment proposed by their doctor before using them. One third of the surveyed women claimed their knowledge about infertility comes more from the Internet than the specialist who treated them. There was a positive correlation between patients who checked diagnostic or therapeutic methods proposed by their physician with depression in BDI. Considering the great impact of Internet forums and web pages on patient approach to diagnostics and treatment of infertility there seems to be a need to create a professional Polish website and forum to provide the patients with reliable information about the disease.

  9. Visible light scatter as quantitative information source on milk constituents

    DEFF Research Database (Denmark)

    Melentiyeva, Anastasiya; Kucheryavskiy, Sergey; Bogomolov, Andrey

    2012-01-01

    analysis. The main task here is to extract individual quantitative information on milk fat and total protein content from spectral data. This is particularly challenging problem in the case of raw natural milk, where the fat globule sizes may essentially differ depending on source. Fig. 1. Spots of light...... designed set of raw milk samples with simultaneously varying fat, total protein and particle size distribution has been analyzed in the Vis spectral region. The feasibility of raw milk analysis by PLS regression on spectral data has been proved. The root mean-square errors below 0.10% and 0.04% for fat....... 3J&M Analytik AG, Willy-Messerschmitt-Strasse 8, 73457 Essingen, Germany. bogomolov@j-m.de Fat and protein are two major milk nutrients that are routinely analyzed in the dairy industry. Growing food quality requirements promote the dissemination of spectroscopic analysis, enabling real...

  10. UNIDROITED POSITION AS A SOURCE OF CONTRACT LAW IN THE FUTURE OF INDONESIAN CONTRACT LAW AMANDEMENT

    Directory of Open Access Journals (Sweden)

    N. Ike Kusmiati

    2018-01-01

    Full Text Available [Unidroited Position As A Source Of Contract Law In The Future Of Indonesian Contract Law Amandement] Business transaction often faced the issue of ensuring that the rights and obligation are fulfilled as the agreement as agreed, especially when facing the difficulties of the rights and obligation of the parties due to different legal system between countries. Thereore, to answer the problems  the parties will seek legal sources, namely book III of the Civil Code in addition to studying and understanding the principles of internasional commercial contract law, namely UNIDROIT which contains principles that can be adopted as one of the works that seek Standarization of contract law to encourage the harmonization of commercial law international efforts to bring together different business actors between countries, so that the same legal basis is required in the coming renewal of Indonesia contract law. Keyword : Position, UNIDROIT, Law, Contract, Indonesia.

  11. Accelerator mass spectrometry of 41Ca with a positive-ion source and the UNILAC accelerator

    International Nuclear Information System (INIS)

    Steinhof, A.; Henning, W.; Mueller, M.; Roeckl, E.; Schuell, D.; Korschinek, G.; Nolte, E.; Paul, M.

    1987-06-01

    We have made first tests investigating the performance characteristics of the UNILAC accelerator system at GSI, in order to explore the sensitivity achievable in accelerator mass spectrometry (AMS) of 41 Ca with high-current positive-ion sources. Positively charged Ca 3+ ions of up to about 100 micro-amperes electrical current were injected from a penning-sputter source and, after further stripping to Ca 9+ , accelerated to 14.3 MeV/nucleon. The combination of velocity-focussing accelerator and magnetic ion-beam transport system completely eliminated background from the other calcium isotopes. Full-stripping and detection of 41 Ca 20+ ions with a magnetic spectrograph provides separation from isobaric 41 K and, at present, a level of sensitivity of 41 Ca/Ca ≅ 2x10 -15 . Future improvements and implications for dating of Pleistoscene samples will be discussed. (orig.)

  12. Portal. Making a portal site. INIS Web Services and energy information sources

    International Nuclear Information System (INIS)

    Yonezawa, Minoru

    2001-01-01

    The International Nuclear Information System (INIS) provides links to useful nuclear related information sources in Internet by the name of 'INIS Web Services' and the Energy Technology Data Exchange (ETDE) also provides links to useful energy related information sources in Internet by the name of Energy Information Source'. This paper outlines these two services. (author)

  13. Determinants and beliefs of health information mavens among a lower-socioeconomic position and minority population.

    Science.gov (United States)

    Kontos, Emily Z; Emmons, Karen M; Puleo, Elaine; Viswanath, K

    2011-07-01

    People of lower-socioeconomic position (SEP) and most racial/ethnic minorities face significant communication challenges which may negatively impact their health. Previous research has shown that these groups rely heavily on interpersonal sources to share and receive health information; however, little is known about these lay sources. The purpose of this paper is to apply the concept of a market maven to the public health sector with the aims of identifying determinants of high health information mavenism among low-SEP and racial/ethnic minority groups and to assess the information they may be sharing based on their own health beliefs. Data for this study were drawn from the baseline survey (n = 325) of a US randomized control intervention study aimed at eliciting an understanding of Internet-related challenges among lower-SEP and minority individuals. Regression models were estimated to distinguish significant determinants of health information mavenism among the sample. Similarly, bivariate and logistic multivariable models were estimated to determine the association between health information mavenism and accurate health beliefs relating to diet, physical activity and smoking. The data illustrate that having a larger social network, being female and being older were important factors associated with higher mavenism scores. Additionally being a moderate consumer of general media as well as fewer years in the US and lower language acculturation were significant predictors of higher mavenism scores. Mavens were more likely than non-mavens to maintain accurate beliefs regarding diet; however, there was no distinction between physical activity and smoking beliefs between mavens and non-mavens. These results offer a unique understanding of health information mavenism which could better leverage word-of-mouth health communication efforts among lower-SEP and minority groups in order to reduce communication inequalities. Moreover, the data indicate that health

  14. Relationship between the pitch of modulation collimators and the determination accuracy of source positions

    International Nuclear Information System (INIS)

    Fujii, Masami; Nishimura, Jun

    1989-01-01

    The celestial positions of X-ray bursters and gamma-ray burst sources can be accurately determined with rotating modulation collimators which possess wide fields of view and also high angular resolutions. Since the determination accuracy is dependent on the signal to noise ratio of incident photons, the distribution of signal power is analysed and the optimum pitch of the modulation collimator for a burst of a given size is discussed. (author)

  15. Generalised perturbation theory and source of information through chemical measurements

    International Nuclear Information System (INIS)

    Lelek, V.; Marek, T.

    2001-01-01

    It is important to make all analyses and collect all information from the work of the new facility (which the transmutation demonstration unit will surely be) to be sure that the operation corresponds to the forecast or to correct the equations of the facility. The behaviour of the molten salt reactor and in particular the system of measurement are very different from that of the solid fuel reactor. Key information from the long time kinetics could be the nearly on line knowledge of the fuel composition. In this work it is shown how to include it into the control and use such data for the correction of neutron cross-sections for the high actinides or other characteristics. Also the problem of safety - change of the boundary problem to the initial problem - is mentioned. The problem is transformed into the generalised perturbation theory in which the adjoint function is obtained through the solution of the equations with right hand side having the form of source. Such an approach should be a theoretical base for the calculation of the sensitivity coefficients. (authors)

  16. Identifying sources of atmospheric fine particles in Havana City using Positive Matrix Factorization technique

    International Nuclear Information System (INIS)

    Pinnera, I.; Perez, G.; Ramos, M.; Guibert, R.; Aldape, F.; Flores M, J.; Martinez, M.; Molina, E.; Fernandez, A.

    2011-01-01

    In previous study a set of samples of fine and coarse airborne particulate matter collected in a urban area of Havana City were analyzed by Particle-Induced X-ray Emission (PIXE) technique. The concentrations of 14 elements (S, Cl, K, Ca, Ti, V, Cr, Mn, Fe, Ni, Cu, Zn, Br and Pb) were consistently determined in both particle sizes. The analytical database provided by PIXE was statistically analyzed in order to determine the local pollution sources. The Positive Matrix Factorization (PMF) technique was applied to fine particle data in order to identify possible pollution sources. These sources were further verified by enrichment factor (EF) calculation. A general discussion about these results is presented in this work. (Author)

  17. Source contributions to PM10 and arsenic concentrations in Central Chile using positive matrix factorization

    Science.gov (United States)

    Hedberg, Emma; Gidhagen, Lars; Johansson, Christer

    Sampling of particles (PM10) was conducted during a one-year period at two rural sites in Central Chile, Quillota and Linares. The samples were analyzed for elemental composition. The data sets have undergone source-receptor analyses in order to estimate the sources and their abundance's in the PM10 size fraction, by using the factor analytical method positive matrix factorization (PMF). The analysis showed that PM10 was dominated by soil resuspension at both sites during the summer months, while during winter traffic dominated the particle mass at Quillota and local wood burning dominated the particle mass at Linares. Two copper smelters impacted the Quillota station, and contributed to 10% and 16% of PM10 as an average during summer and winter, respectively. One smelter impacted Linares by 8% and 19% of PM10 in the summer and winter, respectively. For arsenic the two smelters accounted for 87% of the monitored arsenic levels at Quillota and at Linares one smelter contributed with 72% of the measured mass. In comparison with PMF, the use of a dispersion model tended to overestimate the smelter contribution to arsenic levels at both sites. The robustness of the PMF model was tested by using randomly reduced data sets, where 85%, 70%, 50% and 33% of the samples were included. In this way the ability of the model to reconstruct the sources initially found by the original data set could be tested. On average for all sources the relative standard deviation increased from 7% to 25% for the variables identifying the sources, when decreasing the data set from 85% to 33% of the samples, indicating that the solution initially found was very stable to begin with. But it was also noted that sources due to industrial or combustion processes were more sensitive for the size of the data set, compared to the natural sources as local soil and sea spray sources.

  18. An Earthquake Information Service with Free and Open Source Tools

    Science.gov (United States)

    Schroeder, M.; Stender, V.; Jüngling, S.

    2015-12-01

    At the GFZ German Research Centre for Geosciences in Potsdam, the working group Earthquakes and Volcano Physics examines the spatiotemporal behavior of earthquakes. In this context also the hazards of volcanic eruptions and tsunamis are explored. The aim is to collect related information after the occurrence of such extreme event and make them available for science and partly to the public as quickly as possible. However, the overall objective of this research is to reduce the geological risks that emanate from such natural hazards. In order to meet the stated objectives and to get a quick overview about the seismicity of a particular region and to compare the situation to historical events, a comprehensive visualization was desired. Based on the web-accessible data from the famous GFZ GEOFON network a user-friendly web mapping application was realized. Further, this web service integrates historical and current earthquake information from the USGS earthquake database, and more historical events from various other catalogues like Pacheco, International Seismological Centre (ISC) and more. This compilation of sources is unique in Earth sciences. Additionally, information about historical and current occurrences of volcanic eruptions and tsunamis are also retrievable. Another special feature in the application is the containment of times via a time shifting tool. Users can interactively vary the visualization by moving the time slider. Furthermore, the application was realized by using the newest JavaScript libraries which enables the application to run in all sizes of displays and devices. Our contribution will present the making of, the architecture behind, and few examples of the look and feel of this application.

  19. How do cancer patients navigate the public information environment? Understanding patterns and motivations for movement among information sources.

    Science.gov (United States)

    Nagler, Rebekah H; Romantan, Anca; Kelly, Bridget J; Stevens, Robin S; Gray, Stacy W; Hull, Shawnika J; Ramirez, A Susana; Hornik, Robert C

    2010-09-01

    Little is known about how patients move among information sources to fulfill unmet needs. We interviewed 43 breast, prostate, and colorectal cancer patients. Using a grounded theory approach, we identified patterns and motivations for movement among information sources. Overall, patients reported using one source (e.g., newspaper) followed by the use of another source (e.g., Internet), and five key motivations for such cross-source movement emerged. Patients' social networks often played a central role in this movement. Understanding how patients navigate an increasingly complex information environment may help clinicians and educators to guide patients to appropriate, high-quality sources.

  20. Use of information sources by cancer patients: results of a systematic review of the research literature

    Directory of Open Access Journals (Sweden)

    Kalyani Ankem

    2006-01-01

    Full Text Available Objectives. Existing findings on cancer patients' use of information sources were synthesized to 1 rank the most and least used information sources and the most helpful information sources and to 2 find the impact of patient demographics and situations on use of information sources. Method. . To synthesize results found across studies, a systematic review was conducted. Medline and CINAHL were searched to retrieve literature on cancer patients' information source use. The retrieved articles were carefully selected according to predetermined criteria, and several articles were eliminated in a systematic approach. Analysis. The twelve articles that met the criteria were systematically analysed by extracting data from articles and summarizing data for the purpose of synthesis to determine the meaning of findings on most used information sources, least used information sources, most helpful information sources, effect of patient characteristics on preference for an information source, and effect of patient situations on preference for an information source. Results. In descending order of use, health care professionals, medical pamphlets, and family and friends were most used information sources. Internet and support groups were least used. In descending order of helpfulness, books, health care professionals and medical pamphlets were found to be most helpful information sources. Younger patients used health care professionals and certain forms of written information sources more than older patients. Conclusion. . The systematic review shows that many areas of cancer patients' information source use have been either neglected or barely analysed. An in-depth understanding of cancer patients' use of information sources and the characteristics in information sources they consider to be helpful is important for developing successful interventions to better inform patients.

  1. Study of a new source for positive and negative ions. Final report

    International Nuclear Information System (INIS)

    Freedman, A.; Davidovits, P.

    1985-05-01

    This study has focused on the feasibility of a novel ion source based on the technique of photodissociation, which could provide both positive and negative ions at considerably higher intensities (potentially 10 15 cm -3 ) than are currently available. Ions are produced by irradiating a sample of a gaseous thallium halide salt with an argon fluoride excimer laser operating at 193 nm. At this wavelength, both thallium bromide and iodide will produce atomic ion pairs in a single photon process and molecular positive ions and an electron in a two-photon induced process. The potential traits of such an excimer-laser pumped thallium salt ion source include the following: high intensity and pulse rate, good spatial and temporal resolution, low temperature, good focusing properties, and production of heavy ions. This report describes a Phase I effort investigating the efficacy of this approach. A review of the relevant photophysics pertaining to laser excitation of thallium halide salts is presented, followed by a description of both experimental and theoretical efforts involving thallium bromide in particular. The last section will summarize the basic conclusions derived from these studies, as well as discuss potential advantages of an ion source derived from photolyzing thallium halide salts

  2. Source-constrained retrieval influences the encoding of new information.

    Science.gov (United States)

    Danckert, Stacey L; MacLeod, Colin M; Fernandes, Myra A

    2011-11-01

    Jacoby, Shimizu, Daniels, and Rhodes (Psychonomic Bulletin & Review, 12, 852-857, 2005) showed that new words presented as foils among a list of old words that had been deeply encoded were themselves subsequently better recognized than new words presented as foils among a list of old words that had been shallowly encoded. In Experiment 1, by substituting a deep-versus-shallow imagery manipulation for the levels-of-processing manipulation, we demonstrated that the effect is robust and that it generalizes, also occurring with a different type of encoding. In Experiment 2, we provided more direct evidence for context-related encoding during tests of deeply encoded words, showing enhanced priming for foils presented among deeply encoded targets when participants made the same deep-encoding judgments on those items as had been made on the targets during study. In Experiment 3, we established that the findings from Experiment 2 are restricted to this specific deep judgment task and are not a general consequence of these foils being associated with deeply encoded items. These findings provide support for the source-constrained retrieval hypothesis of Jacoby, Shimizu, Daniels, and Rhodes: New information can be influenced by how surrounding items are encoded and retrieved, as long as the surrounding items recruit a coherent mode of processing.

  3. 77 FR 37430 - BSEE Information Collection Activity: Global Positioning System for MODUs, Extension of a...

    Science.gov (United States)

    2012-06-21

    ... major weather event, like a hurricane, lessees and operators need to report new GPS information to BSEE...-0012; OMB Control Number 1014-0013] BSEE Information Collection Activity: Global Positioning System for... Paperwork Reduction Act of 1995 (PRA), BSEE is inviting comments on a collection of information pertaining...

  4. Source apportionment of atmospheric bulk deposition in the Belgrade urban area using Positive Matrix factorization

    Science.gov (United States)

    Tasić, M.; Mijić, Z.; Rajšić, S.; Stojić, A.; Radenković, M.; Joksić, J.

    2009-04-01

    The primary objective of the present study was to assess anthropogenic impacts of heavy metals to the environment by determination of total atmospheric deposition of heavy metals. Atmospheric depositions (wet + dry) were collected monthly, from June 2002 to December 2006, at three urban locations in Belgrade, using bulk deposition samplers. Concentrations of Fe, Al, Pb, Zn, Cu, Ni, Mn, Cr, V, As and Cd were analyzed using atomic absorption spectrometry. Based upon these results, the study attempted to examine elemental associations in atmospheric deposition and to elucidate the potential sources of heavy metal contaminants in the region by the use of multivariate receptor model Positive Matrix Factorization (PMF).

  5. Source apportionment of atmospheric bulk deposition in the Belgrade urban area using Positive Matrix factorization

    International Nuclear Information System (INIS)

    Tasic, M; Mijic, Z; Rajsic, S; Stojic, A; Radenkovic, M; Joksic, J

    2009-01-01

    The primary objective of the present study was to assess anthropogenic impacts of heavy metals to the environment by determination of total atmospheric deposition of heavy metals. Atmospheric depositions (wet + dry) were collected monthly, from June 2002 to December 2006, at three urban locations in Belgrade, using bulk deposition samplers. Concentrations of Fe, Al, Pb, Zn, Cu, Ni, Mn, Cr, V, As and Cd were analyzed using atomic absorption spectrometry. Based upon these results, the study attempted to examine elemental associations in atmospheric deposition and to elucidate the potential sources of heavy metal contaminants in the region by the use of multivariate receptor model Positive Matrix Factorization (PMF).

  6. High dose-rate brachytherapy source position quality assurance using radiochromic film

    International Nuclear Information System (INIS)

    Evans, M.D.C.; Devic, S.; Podgorsak, E.B.

    2007-01-01

    Traditionally, radiographic film has been used to verify high-dose-rate brachytherapy source position accuracy by co-registering autoradiographic and diagnostic images of the associated applicator. Filmless PACS-based clinics that do not have access to radiographic film and wet developers may have trouble performing this quality assurance test in a simple and practical manner. We describe an alternative method for quality assurance using radiochromic-type film. In addition to being easy and practical to use, radiochromic film has some advantages in comparison with traditional radiographic film when used for HDR brachytherapy quality assurance

  7. A comparison of positive vicarious learning and verbal information for reducing vicariously learned fear.

    Science.gov (United States)

    Reynolds, Gemma; Wasely, David; Dunne, Güler; Askew, Chris

    2017-10-19

    Research with children has demonstrated that both positive vicarious learning (modelling) and positive verbal information can reduce children's acquired fear responses for a particular stimulus. However, this fear reduction appears to be more effective when the intervention pathway matches the initial fear learning pathway. That is, positive verbal information is a more effective intervention than positive modelling when fear is originally acquired via negative verbal information. Research has yet to explore whether fear reduction pathways are also important for fears acquired via vicarious learning. To test this, an experiment compared the effectiveness of positive verbal information and positive vicarious learning interventions for reducing vicariously acquired fears in children (7-9 years). Both vicarious and informational fear reduction interventions were found to be equally effective at reducing vicariously acquired fears, suggesting that acquisition and intervention pathways do not need to match for successful fear reduction. This has significant implications for parents and those working with children because it suggests that providing children with positive information or positive vicarious learning immediately after a negative modelling event may prevent more serious fears developing.

  8. Possibilities Of Using Innovative Sources Of Information On Real Estate In The Spatial Data Collection Process

    Directory of Open Access Journals (Sweden)

    Kwartnik-Pruc Anita

    2015-03-01

    Full Text Available The register of land and buildings is an essential source of information on real estate. The use of cadastral data in land management is manifold, starting from spatial planning, through the calculation of taxes, the designation of real estate in land and mortgage registers, and finally, in real estate management. The accuracy of information from public records, i.e. the register of land and buildings, obtained by entities managing property has a direct impact on the correctness of the conducted processes of land management. Data necessary to determine the position of boundaries of cadastral parcels are taken from surveying documentation accepted into the national geodetic and cartographic resource database. If there is no such documentation, or the data contained therein are not reliable, information on the boundaries of cadastral parcels are obtained by means of field or photogrammetric surveys, preceded by the determination of the course of these boundaries.

  9. Performance of the Lancelot Beam Position Monitor at the Diamond Light Source

    Science.gov (United States)

    Chagani, H.; Garcia-Nathan, T. B.; Jiang, C.; Kachatkou, A.; Marchal, J.; Omar, D.; Tartoni, N.; van Silfhout, R. G.; Williams, S.

    2017-12-01

    The Lancelot beam position and profile monitor records the scattered radiation off a thin, low-density foil, which passes through a pinhole perpendicular to the path of the beam and is detected by a Medipix3RX sensor. This arrangement does not expose the detector to the direct beam at synchrotrons and results in a negligible drop in flux downstream of the module. It allows for magnified images of the beam to be acquired in real time with high signal-to-noise ratios, enabling measurements of tiny displacements in the position of the centroid of approximately 1 μm. It also provides a means for independently measuring the photon energy of the incident monoenergetic photon beam. A constant frame rate of up to 245 Hz is achieved. The results of measurements with two Lancelot detectors installed in different environments at the Diamond Light Source are presented and their performance is discussed.

  10. All-source Information Management and Integration for Improved Collective Intelligence Production

    Science.gov (United States)

    2011-06-01

    Intelligence (ELINT) • Open Source Intelligence ( OSINT ) • Technical Intelligence (TECHINT) These intelligence disciplines produce... intelligence , measurement and signature intelligence , signals intelligence , and open - source data, in the production of intelligence . All- source intelligence ...All- Source Information Integration and Management) R&D Project 3 All- Source Intelligence

  11. A Weld Position Recognition Method Based on Directional and Structured Light Information Fusion in Multi-Layer/Multi-Pass Welding

    Directory of Open Access Journals (Sweden)

    Jinle Zeng

    2018-01-01

    Full Text Available Multi-layer/multi-pass welding (MLMPW technology is widely used in the energy industry to join thick components. During automatic welding using robots or other actuators, it is very important to recognize the actual weld pass position using visual methods, which can then be used not only to perform reasonable path planning for actuators, but also to correct any deviations between the welding torch and the weld pass position in real time. However, due to the small geometrical differences between adjacent weld passes, existing weld position recognition technologies such as structured light methods are not suitable for weld position detection in MLMPW. This paper proposes a novel method for weld position detection, which fuses various kinds of information in MLMPW. First, a synchronous acquisition method is developed to obtain various kinds of visual information when directional light and structured light sources are on, respectively. Then, interferences are eliminated by fusing adjacent images. Finally, the information from directional and structured light images is fused to obtain the 3D positions of the weld passes. Experiment results show that each process can be done in 30 ms and the deviation is less than 0.6 mm. The proposed method can be used for automatic path planning and seam tracking in the robotic MLMPW process as well as electron beam freeform fabrication process.

  12. A Weld Position Recognition Method Based on Directional and Structured Light Information Fusion in Multi-Layer/Multi-Pass Welding.

    Science.gov (United States)

    Zeng, Jinle; Chang, Baohua; Du, Dong; Wang, Li; Chang, Shuhe; Peng, Guodong; Wang, Wenzhu

    2018-01-05

    Multi-layer/multi-pass welding (MLMPW) technology is widely used in the energy industry to join thick components. During automatic welding using robots or other actuators, it is very important to recognize the actual weld pass position using visual methods, which can then be used not only to perform reasonable path planning for actuators, but also to correct any deviations between the welding torch and the weld pass position in real time. However, due to the small geometrical differences between adjacent weld passes, existing weld position recognition technologies such as structured light methods are not suitable for weld position detection in MLMPW. This paper proposes a novel method for weld position detection, which fuses various kinds of information in MLMPW. First, a synchronous acquisition method is developed to obtain various kinds of visual information when directional light and structured light sources are on, respectively. Then, interferences are eliminated by fusing adjacent images. Finally, the information from directional and structured light images is fused to obtain the 3D positions of the weld passes. Experiment results show that each process can be done in 30 ms and the deviation is less than 0.6 mm. The proposed method can be used for automatic path planning and seam tracking in the robotic MLMPW process as well as electron beam freeform fabrication process.

  13. Identification of the sources of PM10 in a subway tunnel using positive matrix factorization.

    Science.gov (United States)

    Park, Duckshin; Lee, Taejeong; Hwang, Doyeon; Jung, Wonseok; Lee, Yongil; Cho, KiChul; Kim, Dongsool; Lees, Kiyoung

    2014-12-01

    The level of particulate matter of less than 10 μm diameter (PM10) at subway platforms can be significantly reduced by installing a platform screen-door system. However, both workers and passengers might be exposed to higher PM10 levels while the cars are within the tunnel because it is a more confined environment. This study determined the PM10 levels in a subway tunnel, and identified the sources of PM10 using elemental analysis and receptor modeling. Forty-four PM10 samples were collected in the tunnel between the Gireum and Mia stations on Line 4 in metropolitan Seoul and analyzed using inductively coupled plasma-atomic emission spectrometry and ion chromatography. The major PM10 sources were identified using positive matrix factorization (PMF). The average PM10 concentration in the tunnels was 200.8 ± 22.0 μg/m3. Elemental analysis indicated that the PM10 consisted of 40.4% inorganic species, 9.1% anions, 4.9% cations, and 45.6% other materials. Iron was the most abundant element, with an average concentration of 72.5 ± 10.4 μg/m3. The PM10 sources characterized by PMF included rail, wheel, and brake wear (59.6%), soil combustion (17.0%), secondary aerosols (10.0%), electric cable wear (8.1%), and soil and road dust (5.4%). Internal sources comprising rail, wheel, brake, and electric cable wear made the greatest contribution to the PM10 (67.7%) in tunnel air. Implications: With installation of a platform screen door, PM10 levels in subway tunnels were higher than those on platforms. Tunnel PM10 levels exceeded 150 µg/m3 of the Korean standard for subway platform. Elemental analysis of PM10 in a tunnel showed that Fe was the most abundant element. Five PM10 sources in tunnel were identified by positive matrix factorization. Railroad-related sources contributed 68% of PM10 in the subway tunnel.

  14. A phantom for verification of dwell position and time of a high dose rate brachytherapy source

    International Nuclear Information System (INIS)

    Madebo, M.; Kron, T.; Pillainayagam, J.; Franich, R.

    2012-01-01

    Accuracy of dwell position and reproducibility of dwell time are critical in high dose rate (HDR) brachytherapy. A phantom was designed to verify dwell position and dwell time reproducibility for an Ir-192 HDR stepping source using Computed Radiography (CR). The central part of the phantom, incorporating thin alternating strips of lead and acrylic, was used to measure dwell positions. The outer part of the phantom features recesses containing different absorber materials (lead, aluminium, acrylic and polystyrene foam), and was used for determining reproducibility of dwell times. Dwell position errors of <1 mm were easily detectable using the phantom. The effect of bending a transfer tube was studied with this phantom and no change of clinical significance was observed when varying the curvature of the transfer tube in typical clinical scenarios. Changes of dwell time as low as 0.1 s, the minimum dwell time of the treatment unit, could be detected by choosing dwell times over the four materials that produce identical exposure at the CR detector.

  15. The Effect of Positive Mood on Flexible Processing of Affective Information.

    Science.gov (United States)

    Grol, Maud; De Raedt, Rudi

    2017-07-17

    Recent efforts have been made to understand the cognitive mechanisms underlying psychological resilience. Cognitive flexibility in the context of affective information has been related to individual differences in resilience. However, it is unclear whether flexible affective processing is sensitive to mood fluctuations. Furthermore, it remains to be investigated how effects on flexible affective processing interact with the affective valence of information that is presented. To fill this gap, we tested the effects of positive mood and individual differences in self-reported resilience on affective flexibility, using a task switching paradigm (N = 80). The main findings showed that positive mood was related to lower task switching costs, reflecting increased flexibility, in line with previous findings. In line with this effect of positive mood, we showed that greater resilience levels, specifically levels of acceptance of self and life, also facilitated task set switching in the context of affective information. However, the effects of resilience on affective flexibility seem more complex. Resilience tended to relate to more efficient task switching when negative information was preceded by positive information, possibly because the presentation of positive information, as well as positive mood, can facilitate task set switching. Positive mood also influenced costs associated with switching affective valence of the presented information. This latter effect was indicative of a reduced impact of no longer relevant negative information and more impact of no longer relevant positive information. Future research should confirm these effects of individual differences in resilience on affective flexibility, considering the affective valence of the presented information. (PsycINFO Database Record (c) 2017 APA, all rights reserved).

  16. Regulative feedback in pattern formation: towards a general relativistic theory of positional information.

    Science.gov (United States)

    Jaeger, Johannes; Irons, David; Monk, Nick

    2008-10-01

    Positional specification by morphogen gradients is traditionally viewed as a two-step process. A gradient is formed and then interpreted, providing a spatial metric independent of the target tissue, similar to the concept of space in classical mechanics. However, the formation and interpretation of gradients are coupled, dynamic processes. We introduce a conceptual framework for positional specification in which cellular activity feeds back on positional information encoded by gradients, analogous to the feedback between mass-energy distribution and the geometry of space-time in Einstein's general theory of relativity. We discuss how such general relativistic positional information (GRPI) can guide systems-level approaches to pattern formation.

  17. Spatiotemporal variations of ambient PM10 source contributions in Beijing in 2004 using positive matrix factorization

    Directory of Open Access Journals (Sweden)

    T. Chen

    2008-05-01

    Full Text Available Source contributions to ambient PM10 (particles with an aerodynamic diameter of 10 μm or less in Beijing, China were determined with positive matrix factorization (PMF based on ambient PM10 composition data including concentrations of organic carbon (OC, elemental carbon (EC, ions and metal elements, which were simultaneously obtained at six sites through January, April, July and October in 2004. Results from PMF indicated that seven major sources of ambient PM10 were urban fugitive dust, crustal soil, coal combustion, secondary sulfate, secondary nitrate, biomass burning with municipal incineration, and vehicle emission, respectively. In paticular, urban fugitive dust and crustal soil as two types of dust sources with similar chemical characteristics were differentiated by PMF. Urban fugitive dust contributed the most, accounting for 34.4% of total PM10 mass on an annual basis, with relatively high contributions in all four months, and even covered 50% in April. It also showed higher contributions in southwestern and southeastern areas than in central urban areas. Coal combustion was found to be the primary contributor in January, showing higher contributions in urban areas than in suburban areas with seasonal variation peaking in winter, which accounted for 15.5% of the annual average PM10 concentration. Secondary sulfate and secondary nitrate combined as the largest contributor to PM10 in July and October, with strong seasonal variation peaking in summer, accounting for 38.8% and 31.5% of the total PM10 mass in July and October, respectively. Biomass burning with municipal incineration contributions were found in all four months and accounted for 9.8% of the annual average PM10 mass concentration, with obviously higher contribution in October than in other months. Incineration sources were probably located in southwestern Beijing. Contribution from vehicle emission accounted for 5.0% and exhibited no significant seasonal variation. In sum

  18. Association between information sources and level of knowledge about diabetes in patients with type 2 diabetes.

    Science.gov (United States)

    Cántaro, Katherine; Jara, Jimena A; Taboada, Marco; Mayta-Tristán, Percy

    2016-05-01

    To evaluate the association between the type of information source and the level of knowledge about diabetes mellitus in patients with type 2 diabetes. A cross-sectional study was conducted at a reference diabetes and hypertension center in Lima, Peru, during 2014. Level of knowledge was measured using the Diabetes Knowledge Questionnaire-24 and 12 information sources. Patients with 75% correct answers were considered to have a good knowledge. Adjusted odds ratios were calculated. Of the total 464 patients enrolled, 52.2% were females, and 20.3% used the Internet as information source. Mean knowledge was 12.9±4.8, and only 17.0% had a good knowledge, which was associated with information on diabetes obtained from the Internet (OR=2.03, 95% CI 1.32 to 3.14), and also from other patients (OR=1.99, 95% CI 1.20 to 3.31). Good knowledge was also associated with postgraduate education (OR=3.66, 95% CI 1.21 to 11.09), disease duration longer than 12 years (OR=1.91, 95% CI 1,22 to 3.01), and age older than 70 years (OR=0.39, 95% CI 0.21-0.72). Search for information in the Internet was positively associated to a good level of knowledge. It is suggested to teach patients with diabetes to seek information on the Internet and, on the other hand, to develop virtual spaces for interaction of patients with diabetes. Copyright © 2016 SEEN. Published by Elsevier España, S.L.U. All rights reserved.

  19. Use and value of information sources by parents of child psychiatric patients.

    Science.gov (United States)

    Turner, Adrienne; Kabashi, Arta; Guthrie, Hannah; Burket, Roger; Turner, Philip

    2011-06-01

    With Web 2.0, the variety of information sources for parents of paediatric psychiatric patients has increased dramatically. Information use theory suggests newer sources supplement rather than supplant traditional sources of health information. This study sought to determine the use and value of traditional and emerging sources of information and whether the subjects had access to highly valued sources of information. One hundred parents indicated the use and value of six sources of information on the child's symptoms, diagnoses and treatment. The data were analyzed to determine if significant relationships existed between type of source and the use and value of the information sources. Ninety-four percent of the subjects had access to the Internet and almost half of those reported using the Social Web. Eighty-five percent had at least one high-value information source. The psychiatrist in the clinic, the Internet and the primary care physician were the most highly used and valued sources. Use of digital information sources was greater than found in other studies of similar populations. This use appears to complement rather than supplant more traditional sources. Further studies are needed to see if the negative impact of lack of Internet access is replicated. © 2011 The authors. Health Information and Libraries Journal © 2011 Health Libraries Group.

  20. Associations between Sexually Experienced Adolescents' Sources of Information about Sex and Sexual Risk Outcomes

    Science.gov (United States)

    Secor-Turner, Molly; Sieving, Renee E.; Eisenberg, Marla E.; Skay, Carol

    2011-01-01

    The objective of this study was to describe prevalent informal sources of information about sex and examine associations between informal sources of information about sex and sexual risk outcomes among sexually experienced adolescents. Work involved the secondary analysis of data from the Minnesota Student Survey, a statewide survey to monitor…

  1. Use of and Satisfaction with Sources of Health Information among Older Internet Users and Nonusers

    Science.gov (United States)

    Taha, Jessica; Sharit, Joseph; Czaja, Sara

    2009-01-01

    Purpose: Older adults generally have an increased need for health care information. Whereas some use the Internet to look for this information, others use more traditional sources. This study gathered data from older adults to determine their health information needs, the perceived usefulness of sources of health information, and if there are…

  2. Sources

    International Nuclear Information System (INIS)

    Duffy, L.P.

    1991-01-01

    This paper discusses the sources of radiation in the narrow perspective of radioactivity and the even narrow perspective of those sources that concern environmental management and restoration activities at DOE facilities, as well as a few related sources. Sources of irritation, Sources of inflammatory jingoism, and Sources of information. First, the sources of irritation fall into three categories: No reliable scientific ombudsman to speak without bias and prejudice for the public good, Technical jargon with unclear definitions exists within the radioactive nomenclature, and Scientific community keeps a low-profile with regard to public information. The next area of personal concern are the sources of inflammation. This include such things as: Plutonium being described as the most dangerous substance known to man, The amount of plutonium required to make a bomb, Talk of transuranic waste containing plutonium and its health affects, TMI-2 and Chernobyl being described as Siamese twins, Inadequate information on low-level disposal sites and current regulatory requirements under 10 CFR 61, Enhanced engineered waste disposal not being presented to the public accurately. Numerous sources of disinformation regarding low level radiation high-level radiation, Elusive nature of the scientific community, The Federal and State Health Agencies resources to address comparative risk, and Regulatory agencies speaking out without the support of the scientific community

  3. A new source difference artificial neural network for enhanced positioning accuracy

    International Nuclear Information System (INIS)

    Bhatt, Deepak; Aggarwal, Priyanka; Devabhaktuni, Vijay; Bhattacharya, Prabir

    2012-01-01

    Integrated inertial navigation system (INS) and global positioning system (GPS) units provide reliable navigation solution compared to standalone INS or GPS. Traditional Kalman filter-based INS/GPS integration schemes have several inadequacies related to sensor error model and immunity to noise. Alternatively, multi-layer perceptron (MLP) neural networks with three layers have been implemented to improve the position accuracy of the integrated system. However, MLP neural networks show poor accuracy for low-cost INS because of the large inherent sensor errors. For the first time the paper demonstrates the use of knowledge-based source difference artificial neural network (SDANN) to improve navigation performance of low-cost sensor, with or without external aiding sources. Unlike the conventional MLP or artificial neural networks (ANN), the structure of SDANN consists of two MLP neural networks called the coarse model and the difference model. The coarse model learns the input–output data relationship whereas the difference model adds knowledge to the system and fine-tunes the coarse model output by learning the associated training or estimation error. Our proposed SDANN model illustrated a significant improvement in navigation accuracy of up to 81% over conventional MLP. The results demonstrate that the proposed SDANN method is effective for GPS/INS integration schemes using low-cost inertial sensors, with and without GPS

  4. Positive matrix factorization and trajectory modelling for source identification: A new look at Indian Ocean Experiment ship observations

    Science.gov (United States)

    Bhanuprasad, S. G.; Venkataraman, Chandra; Bhushan, Mani

    The sources of aerosols on a regional scale over India have only recently received attention in studies using back trajectory analysis and chemical transport modelling. Receptor modelling approaches such as positive matrix factorization (PMF) and the potential source contribution function (PSCF) are effective tools in source identification of urban and regional-scale pollution. In this work, PMF and PSCF analysis is applied to identify categories and locations of sources that influenced surface concentrations of aerosols in the Indian Ocean Experiment (INDOEX) domain measured on-board the research vessel Ron Brown [Quinn, P.K., Coffman, D.J., Bates, T.S., Miller, T.L., Johnson, J.E., Welton, E.J., et al., 2002. Aerosol optical properties during INDOEX 1999: means, variability, and controlling factors. Journal of Geophysical Research 107, 8020, doi:10.1029/2000JD000037]. Emissions inventory information is used to identify sources co-located with probable source regions from PSCF. PMF analysis identified six factors influencing PM concentrations during the INDOEX cruise of the Ron Brown including a biomass combustion factor (35-40%), three industrial emissions factors (35-40%), primarily secondary sulphate-nitrate, balance trace elements and Zn, and two dust factors (20-30%) of Si- and Ca-dust. The identified factors effectively predict the measured submicron PM concentrations (slope of regression line=0.90±0.20; R2=0.76). Probable source regions shifted based on changes in surface and elevated flows during different times in the ship cruise. They were in India in the early part of the cruise, but in west Asia, south-east Asia and Africa, during later parts of the cruise. Co-located sources include coal-fired electric utilities, cement, metals and petroleum production in India and west Asia, biofuel combustion for energy and crop residue burning in India, woodland/forest burning in north sub-Saharan Africa and forest burning in south-east Asia. Significant findings

  5. Source Apportionment of PM10 by Positive Matrix Factorization in Urban Area of Mumbai, India

    Directory of Open Access Journals (Sweden)

    Indrani Gupta

    2012-01-01

    Full Text Available Particulate Matter (PM10 has been one of the main air pollutants exceeding the ambient standards in most of the major cities in India. During last few years, receptor models such as Chemical Mass Balance, Positive Matrix Factorization (PMF, PCA–APCS and UNMIX have been used to provide solutions to the source identification and contributions which are accepted for developing effective and efficient air quality management plans. Each site poses different complexities while resolving PM10 contributions. This paper reports the variability of four sites within Mumbai city using PMF. Industrial area of Mahul showed sources such as residual oil combustion and paved road dust (27%, traffic (20%, coal fired boiler (17%, nitrate (15%. Residential area of Khar showed sources such as residual oil combustion and construction (25%, motor vehicles (23%, marine aerosol and nitrate (19%, paved road dust (18% compared to construction and natural dust (27%, motor vehicles and smelting work (25%, nitrate (16% and biomass burning and paved road dust (15% in Dharavi, a low income slum residential area. The major contributors of PM10 at Colaba were marine aerosol, wood burning and ammonium sulphate (24%, motor vehicles and smelting work (22%, Natural soil (19%, nitrate and oil burning (18%.

  6. In-situ X-ray diffraction system using sources and detectors at fixed angular positions

    Science.gov (United States)

    Gibson, David M [Voorheesville, NY; Gibson, Walter M [Voorheesville, NY; Huang, Huapeng [Latham, NY

    2007-06-26

    An x-ray diffraction technique for measuring a known characteristic of a sample of a material in an in-situ state. The technique includes using an x-ray source for emitting substantially divergent x-ray radiation--with a collimating optic disposed with respect to the fixed source for producing a substantially parallel beam of x-ray radiation by receiving and redirecting the divergent paths of the divergent x-ray radiation. A first x-ray detector collects radiation diffracted from the sample; wherein the source and detector are fixed, during operation thereof, in position relative to each other and in at least one dimension relative to the sample according to a-priori knowledge about the known characteristic of the sample. A second x-ray detector may be fixed relative to the first x-ray detector according to the a-priori knowledge about the known characteristic of the sample, especially in a phase monitoring embodiment of the present invention.

  7. Information sources used by parents to learn about medications they are giving their children.

    Science.gov (United States)

    Holappa, Miina; Ahonen, Riitta; Vainio, Kirsti; Hämeen-Anttila, Katri

    2012-01-01

    Previous studies have indicated the use of medication by children to be dependent on the attitudes of knowledge of their parents; however, little is known about sources parents might use in driving medication use decisions. The aim of this study was to describe the information sources that parents use regarding their children's medication and their perceptions of the reliability of these information sources. This study is part of a cross-sectional population survey with a random sample of 6000 children younger than 12 years. The response rate of the questionnaire was 67%. Parents were asked about the use of information sources and their perception of reliability with a list of 16 information sources. The information sources that parents reported having used were physicians (72%), patient information leaflets (PILs) (67%), public or school health nurses (52%), and pharmacists (44%). Regardless of the child's age, physicians were the parents' most-used information source. Physicians were the most-used information source also when the child had at least 1 of the 4 most common long-term diseases among children in Finland (asthma, diabetes, epilepsy, and juvenile idiopathic arthritis). Parents considered physicians (50%), PILs (31%), pharmacists (27%), nurses (20%), and public or school health nurses (17%) very reliable information sources. Finnish parents seek information from health care professionals and PILs when looking for information concerning their children's medication. Furthermore, they find health care professionals and PILs to be reliable information sources. Copyright © 2012 Elsevier Inc. All rights reserved.

  8. YouTube as a source of information for obstructive sleep apnea.

    Science.gov (United States)

    Singh, Sameer K; Liu, Stanley; Capasso, Robson; Kern, Robert C; Gouveia, Christopher J

    Assess the quality of information on obstructive sleep apnea (OSA) presented on YouTube for patients. "Obstructive sleep apnea" was entered into the YouTube search. Two independent reviewers categorized and analyzed videos utilizing a customized scoring-system along with search position, likes, and views. Forty-eight videos were analyzed. Most were educational (52.1%). Educational and news videos had significantly higher scores, but had no significant differences in search position, likes/day, or views/day. Most videos mentioned positive airway pressure (65%), and nearly half (44%) mentioned mandibular devices in the management of OSA. Few videos discussed surgery (13%) or otolaryngology (15%). YouTube is a promising source of information for OSA patients. Educational and news videos are of highest quality. General quality measures like search position, views, and likes are not correlated with formally scored value. Sleep surgery and otolaryngologists are minimally mentioned, representing an opportunity for improvement. Copyright © 2018 Elsevier Inc. All rights reserved.

  9. heteroHarvest: Harvesting Information from Heterogeneous Sources

    DEFF Research Database (Denmark)

    Qureshi, Pir Abdul Rasool; Memon, Nasrullah; Wiil, Uffe Kock

    2011-01-01

    The abundance of information regarding any topic makes the Internet a very good resource. Even though searching the Internet is very easy, what remains difficult is to automate the process of information extraction from the available online information due to the lack of structure and the diversity...... in the sharing methods. Most of the times, information is stored in different proprietary formats, complying with different standards and protocols which makes tasks like data mining and information harvesting very difficult. In this paper, an information harvesting tool (heteroHarvest) is presented...... with objectives to address these problems by filtering the useful information and then normalizing the information in a singular non hypertext format. Finally we describe the results of experimental evaluation. The results are found promising with an overall error rate equal to 6.5% across heterogeneous formats....

  10. Proteins interacting with cloning scars: a source of false positive protein-protein interactions.

    Science.gov (United States)

    Banks, Charles A S; Boanca, Gina; Lee, Zachary T; Florens, Laurence; Washburn, Michael P

    2015-02-23

    A common approach for exploring the interactome, the network of protein-protein interactions in cells, uses a commercially available ORF library to express affinity tagged bait proteins; these can be expressed in cells and endogenous cellular proteins that copurify with the bait can be identified as putative interacting proteins using mass spectrometry. Control experiments can be used to limit false-positive results, but in many cases, there are still a surprising number of prey proteins that appear to copurify specifically with the bait. Here, we have identified one source of false-positive interactions in such studies. We have found that a combination of: 1) the variable sequence of the C-terminus of the bait with 2) a C-terminal valine "cloning scar" present in a commercially available ORF library, can in some cases create a peptide motif that results in the aberrant co-purification of endogenous cellular proteins. Control experiments may not identify false positives resulting from such artificial motifs, as aberrant binding depends on sequences that vary from one bait to another. It is possible that such cryptic protein binding might occur in other systems using affinity tagged proteins; this study highlights the importance of conducting careful follow-up studies where novel protein-protein interactions are suspected.

  11. StimTrack: An open-source software for manual transcranial magnetic stimulation coil positioning.

    Science.gov (United States)

    Ambrosini, Emilia; Ferrante, Simona; van de Ruit, Mark; Biguzzi, Stefano; Colombo, Vera; Monticone, Marco; Ferriero, Giorgio; Pedrocchi, Alessandra; Ferrigno, Giancarlo; Grey, Michael J

    2018-01-01

    During Transcranial Magnetic Stimulation (TMS) experiments researchers often use a neuronavigation system to precisely and accurately maintain coil position and orientation. This study aimed to develop and validate an open-source software for TMS coil navigation. StimTrack uses an optical tracker and an intuitive user interface to facilitate the maintenance of position and orientation of any type of coil within and between sessions. Additionally, online access to navigation data is provided, hereby adding e.g. the ability to start or stop the magnetic stimulator depending on the distance to target or the variation of the orientation angles. StimTrack allows repeatable repositioning of the coil within 0.7mm for translation and 0.9) was obtained on all parameters computed on SR curves acquired using StimTrack. StimTrack showed a target accuracy similar to that of a commercial neuronavigation system (BrainSight, Rogue Research Inc.). Indeed, small differences both in position (∼0.2mm) and orientation (TMS. StimTrack allows researchers to tailor its functionality to their specific needs, providing added value that benefits experimental procedures and improves data quality. Copyright © 2017 Elsevier B.V. All rights reserved.

  12. Integration of Visual and Proprioceptive Limb Position Information in Human Posterior Parietal, Premotor, and Extrastriate Cortex.

    Science.gov (United States)

    Limanowski, Jakub; Blankenburg, Felix

    2016-03-02

    The brain constructs a flexible representation of the body from multisensory information. Previous work on monkeys suggests that the posterior parietal cortex (PPC) and ventral premotor cortex (PMv) represent the position of the upper limbs based on visual and proprioceptive information. Human experiments on the rubber hand illusion implicate similar regions, but since such experiments rely on additional visuo-tactile interactions, they cannot isolate visuo-proprioceptive integration. Here, we independently manipulated the position (palm or back facing) of passive human participants' unseen arm and of a photorealistic virtual 3D arm. Functional magnetic resonance imaging (fMRI) revealed that matching visual and proprioceptive information about arm position engaged the PPC, PMv, and the body-selective extrastriate body area (EBA); activity in the PMv moreover reflected interindividual differences in congruent arm ownership. Further, the PPC, PMv, and EBA increased their coupling with the primary visual cortex during congruent visuo-proprioceptive position information. These results suggest that human PPC, PMv, and EBA evaluate visual and proprioceptive position information and, under sufficient cross-modal congruence, integrate it into a multisensory representation of the upper limb in space. The position of our limbs in space constantly changes, yet the brain manages to represent limb position accurately by combining information from vision and proprioception. Electrophysiological recordings in monkeys have revealed neurons in the posterior parietal and premotor cortices that seem to implement and update such a multisensory limb representation, but this has been difficult to demonstrate in humans. Our fMRI experiment shows that human posterior parietal, premotor, and body-selective visual brain areas respond preferentially to a virtual arm seen in a position corresponding to one's unseen hidden arm, while increasing their communication with regions conveying visual

  13. American Health Information Management Association. Position statement. Issue: managing health information in facility mergers and acquisitions.

    Science.gov (United States)

    1994-04-01

    Healthcare facility mergers and acquisitions are becoming more common as the industry consolidates. Many critical issues must be considered in mergers and acquisitions, including the management of patient health information. In addition to operational issues, licensure, regulatory, and accreditation requirements must be addressed. To ensure availability of health information to all legitimate users, patient records should be consolidated or linked in the master patient index. A record retention policy should be developed and implemented to meet user needs and assure compliance with legal, regulatory, and accreditation requirements. If health information from closed facilities will be stored for a period of time, its integrity and confidentiality must be preserved, and it must be readily accessible for patient care. The compatibility and functionality of existing information systems should be assessed, and a plan should be formulated for integration of the systems to the extent possible. Such integration may be essential for the organization to successfully meet the demands of integrated delivery systems. Existing databases should be maintained in an accessible form to meet anticipated future needs.

  14. Speculative Attacks with Multiple Sources of Public Information

    OpenAIRE

    Cornand, Camille; Heinemann, Frank

    2005-01-01

    We propose a speculative attack model in which agents receive multiple public signals. It is characterised by its focus on an informational structure, which sets free from the strict separation between public information and private information. Diverse pieces of public information can be taken into account differently by players and are likely to lead to different appreciations ex post. This process defines players’ private value. The main result is to show that equilibrium uniqueness depend...

  15. A radio/optical reference frame. 5: Additional source positions in the mid-latitude southern hemisphere

    Science.gov (United States)

    Russell, J. L.; Reynolds, J. E.; Jauncey, D. L.; de Vegt, C.; Zacharias, N.; Ma, C.; Fey, A. L.; Johnston, K. J.; Hindsley, R.; Hughes, J. A.; Malin, D. F.; White, G. L.; Kawaguchi, N.; Takahashi, Y.

    1994-01-01

    We report new accurate radio position measurements for 30 sources, preliminary positions for two sources, improved radio postions for nine additional sources which had limited previous observations, and optical positions and optical-radio differences for six of the radio sources. The Very Long Baseline Interferometry (VLBI) observations are part of the continuing effort to establish a global radio reference frame of about 400 compact, flat spectrum sources, which are evenly distributed across the sky. The observations were made using Mark III data format in four separate sessions in 1988-89 with radio telescopes at Tidbinbilla, Australia, Kauai, USA, and Kashima, Japan. We observed a total of 54 sources, including ten calibrators and three which were undetected. The 32 new source positions bring the total number in the radio reference frame catalog to 319 (172 northern and 147 southern) and fill in the zone -25 deg greater than delta greater than -45 deg which, prior to this list, had the lowest source density. The VLBI positions have an average formal precision of less than 1 mas, although unknown radio structure effects of about 1-2 mas may be present. The six new optical postion measurements are part of the program to obtain positions of the optical counterparts of the radio reference frame source and to map accurately the optical on to the radio reference frames. The optical measurements were obtained from United States Naval Observatory (USNO) Black Birch astrograph plates and source plates from the AAT, and Kitt Peak National Observatory (KPNO) 4 m, and the European Southern Observatory (ESO) Schmidt. The optical positions have an average precision of 0.07 sec, mostly due to the zero point error when adjusted to the FK5 optical frame using the IRS catalog. To date we have measured optical positions for 46 sources.

  16. Business News as a Source of Information Literacy in Marketing

    Science.gov (United States)

    Fowler, Kendra; Bridges, Eileen

    2017-01-01

    Among the proficiencies that marketing students should acquire, information literacy, the ability to gather and apply pertinent information to aid in decision making, is commonly overlooked. In this article, information literacy is explored along four complementary dimensions: instrumental, conceptual, reflective, and symbolic. Furthermore, the…

  17. Utilization of Agricultural Information Sources and Adoption of ...

    African Journals Online (AJOL)

    USER

    aesonnigeria.org ... sources on adoption of animal and crop technologies among farming households in Imo State, Nigeria. Structured ... used to improve the condition of human and natural environment as well as carry out some other socio-economic ...

  18. Information Sources Influencing Soil Testing Innovation Adoption by Grape Farmers in the Khorramdarreh Township

    Directory of Open Access Journals (Sweden)

    Seyedeh Shirin Golbaz

    2015-08-01

    Full Text Available Testing soil  is recognized to be an important practice for sustainable use of nutrients, which has been introduced to Iranian grape farmers as an innovation for over a decade. Its adoption and utilization may be influenced by receiving information from different sources. This study is performed to introduce these information sources that may influence the adoption of soil testing innovation by grape farmers. Using a survey, a sample of 260 out of 3942 grape farmers of the Khorramdarreh Township was selected using a stratified sampling technique and data was collected by structured interviews using a questionnaire. The content and face validity of the questionnaire was discussed and reviewed by a panel of experts consisting of university staff and agricultural professionals. Its reliability was also assessed through a pilot study and its main constructs were approved to be reliable using the Cronbach’s alpha test (measures between 0.71 and 0.84. Less than half of the grape farmers conducted soil testing in their vineyards. A regression analysis showed that variables such as contact of the farmers with model grape producers, Poster Received, publications and listening to radio programs and farmers’ education have a significant positive impact on soil testing innovation adoption. Therefore, both interpersonal and mass media can have a positive effect on farmers to adopt this innovation.

  19. Sources of product information used by consumers when purchasing kitchen cabinets.

    Science.gov (United States)

    Geoffrey H. Donovan; David L. Nicholls; Joseph. Roos

    2004-01-01

    Survey data from home shows in Seattle, Washington and Anchorage, Alaska were used to determine the sources of product information used by consumers when buying kitchen cabinets. Results show that in-store sales staff are the most common source of product information, and that consumers' favorite wood species, age, and gender can influence the source of product...

  20. Resolution and drift measurements on the Advanced Photon Source beam position monitors

    International Nuclear Information System (INIS)

    Chung, Y.; Kahana, E.

    1994-01-01

    The resolution and long-term drift of the Advanced Photon Source (APS) beam position monitor (BPM) electronics were measured using the charged particle beams in the ESRF storage ring with various beam current and configurations (single bunch, 8 and 16 equally spaced bunches, and 1/3-fill). The energy of the stored electrons was 6 GeV. The integrated BPM electronics system as used for this work is capable of measuring the beam position on a turn-by-turn basis, which can be accumulated for N turns (N = 2 n , n = 1, 2, ... , 11). Estimation of the BPM resolution apart from the low-frequency beam motion was made by measuring the standard deviation in the measured beam position with different Ns. The analysis of the results indicates a BPM resolution of 18/√ N [μm] for the APS storage ring, which is equivalent to 0.07 μm/√Hz. For the miniature insertion device BPM with 2.8 times higher sensitivity, the resolution will be 0.02 μm/√Hz. The long-term drift of the BPM electronics independent of the actual beam motion was measured at 2 μm/hr, which settled after approximately 1.5 hours. This drift can be attributed mainly to the temperature effect. Comparison of the results with the laboratory measurements shows good agreement. Implication of the BPM resolution limit on the proposed global and local beam position feedback systems for the APS storage ring will also be discussed

  1. Resolution and drift measurements on the advanced photon source beam position monitor

    International Nuclear Information System (INIS)

    Chung, Y.; Kahana, E.

    1995-01-01

    The resolution and long-term drift of the Advanced Photon Source (APS) beam position monitor (BPM) electronics were measured using the charged particle beams in the ESRF storage ring with various beam current and configurations (single bunch, 8 and 16 equally spaced bunches, and 1/3-fill). The energy of the stored electrons was 6 GeV. The integrated BPM electronics system as used for this work is capable of measuring the beam position on a turn-by-turn basis, which can be accumulated for N turns (N=2 n , n=1,2,...,11) . Estimation of the BPM resolution apart from the low-frequency beam motion was made by measuring the standard deviation in the measured beam position with different Ns. The analysis of the results indicates a BPM resolution of 18/√N [μm] for the APS storage ring, which is equivalent to 0.07 μm/√Hz. For the miniature insertion device BPM with 2.8 times higher sensitivity, the resolution will be 0.02 μm/√Hz. The long-term drift of the BPM electronics independent of the actual beam motion was measured at 2 μm/hr, which settled after approximately 1.5 hours. This drift can be attributed mainly to the temperature effect. Comparison of the results with the laboratory measurements shows good agreement. Implication of the BPM resolution limit on the proposed global and local beam position feedback systems for the APS storage ring will also be discussed. copyright 1995 American Institute of Physics

  2. Can Raters with Reduced Job Descriptive Information Provide Accurate Position Analysis Questionnaire (PAQ) Ratings?

    Science.gov (United States)

    Friedman, Lee; Harvey, Robert J.

    1986-01-01

    Job-naive raters provided with job descriptive information made Position Analysis Questionnaire (PAQ) ratings which were validated against ratings of job analysts who were also job content experts. None of the reduced job descriptive information conditions enabled job-naive raters to obtain either acceptable levels of convergent validity with…

  3. Animal Welfare Practices along the Food Chain: How Does Negative and Positive Information Affect Consumers

    NARCIS (Netherlands)

    Dentoni, D.; Calantone, R.; Tonsor, G.; Peterson, H.C.

    2011-01-01

    This study analyzes the mitigating effect of positive brand information on animal welfare on consumers' perceptions, attitudes, and buying intentions for meat products when provided before a negative information shock related to the same issue. By tackling this question, this study integrates with

  4. The contribution of different information sources for adverse effects data.

    Science.gov (United States)

    Golder, Su; Loke, Yoon K

    2012-04-01

    The aim of this study is to determine the relative value and contribution of searching different sources to identify adverse effects data. The process of updating a systematic review and meta-analysis of thiazolidinedione-related fractures in patients with type 2 diabetes mellitus was used as a case study. For each source searched, a record was made for each relevant reference included in the review noting whether it was retrieved with the search strategy used and whether it was available but not retrieved. The sensitivity, precision, and number needed to read from searching each source and from different combinations of sources were also calculated. There were 58 relevant references which presented sufficient numerical data to be included in a meta-analysis of fractures and bone mineral density. The highest number of relevant references were retrieved from Science Citation Index (SCI) (35), followed by BIOSIS Previews (27) and EMBASE (24). The precision of the searches varied from 0.88% (Scirus) to 41.67% (CENTRAL). With the search strategies used, the minimum combination of sources required to retrieve all the relevant references was; the GlaxoSmithKline (GSK) website, Science Citation Index (SCI), EMBASE, BIOSIS Previews, British Library Direct, Medscape DrugInfo, handsearching and reference checking, AHFS First, and Thomson Reuters Integrity or Conference Papers Index (CPI). In order to identify all the relevant references for this case study a number of different sources needed to be searched. The minimum combination of sources required to identify all the relevant references did not include MEDLINE.

  5. Prograph Based Analysis of Single Source Shortest Path Problem with Few Distinct Positive Lengths

    Directory of Open Access Journals (Sweden)

    B. Bhowmik

    2011-08-01

    Full Text Available In this paper we propose an experimental study model S3P2 of a fast fully dynamic programming algorithm design technique in finite directed graphs with few distinct nonnegative real edge weights. The Bellman-Ford’s approach for shortest path problems has come out in various implementations. In this paper the approach once again is re-investigated with adjacency matrix selection in associate least running time. The model tests proposed algorithm against arbitrarily but positive valued weighted digraphs introducing notion of Prograph that speeds up finding the shortest path over previous implementations. Our experiments have established abstract results with the intention that the proposed algorithm can consistently dominate other existing algorithms for Single Source Shortest Path Problems. A comparison study is also shown among Dijkstra’s algorithm, Bellman-Ford algorithm, and our algorithm.

  6. Numerical analysis of the beam position monitor pickup for the Iranian light source facility

    Energy Technology Data Exchange (ETDEWEB)

    Shafiee, M., E-mail: mehdish@ipm.ir [Radiation Applications Department, Shahid Beheshti University, G. C., Tehran (Iran, Islamic Republic of); Feghhi, S.A.H. [Radiation Applications Department, Shahid Beheshti University, G. C., Tehran (Iran, Islamic Republic of); Rahighi, J. [Iranian Light Source Facility (ILSF), Institute for Research in Fundamental Sciences (IPM), Tehran (Iran, Islamic Republic of)

    2017-03-01

    In this paper, we describe the design of a button type Beam Position Monitor (BPM) for the low emittance storage ring of the Iranian Light Source Facility (ILSF). First, we calculate sensitivities, induced power and intrinsic resolution based on solving Laplace equation numerically by finite element method (FEM), in order to find the potential at each point of BPM's electrode surface. After the optimization of the designed BPM, trapped high order modes (HOM), wakefield and thermal loss effects are calculated. Finally, after fabrication of BPM, it is experimentally tested by using a test-stand. The results depict that the designed BPM has a linear response in the area of 2×4 mm{sup 2} inside the beam pipe and the sensitivity of 0.080 and 0.087 mm{sup −1} in horizontal and vertical directions. Experimental results also depict that they are in a good agreement with numerical analysis.

  7. Radial Photonic Crystal for detection of frequency and position of radiation sources.

    Science.gov (United States)

    Carbonell, J; Díaz-Rubio, A; Torrent, D; Cervera, F; Kirleis, M A; Piqué, A; Sánchez-Dehesa, J

    2012-01-01

    Based on the concepts of artificially microstructured materials, i.e. metamaterials, we present here the first practical realization of a radial wave crystal. This type of device was introduced as a theoretical proposal in the field of acoustics, and can be briefly defined as a structured medium with radial symmetry, where the constitutive parameters are invariant under radial geometrical translations. Our practical demonstration is realized in the electromagnetic microwave spectrum, because of the equivalence between the wave problems in both fields. A device has been designed, fabricated and experimentally characterized. It is able to perform beam shaping of punctual wave sources, and also to sense position and frequency of external radiators. Owing to the flexibility offered by the design concept, other possible applications are discussed.

  8. Social Media as Source of Medical Information for Healthcare Students

    OpenAIRE

    Ariana Anamaria CORDOȘ; Sorana D. BOLBOACĂ; Tudor C. DRUGAN

    2016-01-01

    Introduction: The scope of the research was a more detailed understanding of the influence of social media and the importance of student’s usage of social media context in relation to medical information. The research aimed to increase the understanding of social media and the impact on medical information use, informing policy and practice while highlighting gaps in the literature and areas for further research. Methods: The search of PubMed database was performed in October 2015, using term...

  9. Use of positioning information for performance enhancement of uncoordinated heterogeneous network deployment

    DEFF Research Database (Denmark)

    Semov, Plamen T.; Mihovska, Albena D.; Prasad, Ramjee

    2013-01-01

    with information but the locations of the mobile users and neighboring cells to solve the problem of dynamic physical resource assignment in uncoordinated scenario while accounting for improved allocation and scheduling. The results are compared to the performance when known scheduling algorithms are employed......This paper proposes a novel algorithm for dynamic physical resource allocation based on the use of positioning information during carrier aggregation (CA) in a semi-and uncoordinated deployment of heterogeneous networks (HetNet). The algorithm uses the known Q-learning method enhanced...... and show increased cell throughput, while maintaining an adequate user throughput when employing Q-learning with positioning information....

  10. Sensitivity and offset calibration for the beam position monitors at the Advanced Photon Source

    International Nuclear Information System (INIS)

    Chung, Y.; Barr, D.; Decker, G.; Evans, K. Jr.; Kahana, E.

    1995-01-01

    The beam position monitors (BPMs) play a critically important role in commissioning and operation of accelerators. Accurate determination of the offsets relative to the magnetic axis and sensitivities of individual BPMs is thus needed. We will describe in this paper the schemes for calibrating all of the 360 BPMs for sensitivity and offset in the 7-GeV Advanced Photon Source (APS) storage ring and the results. For the sensitivity calibration, a 2-dimensional map of the BPM response in the aluminum vacuum chamber is obtained theoretically, which is combined with the measured nonlinear response of the BPM electronics. A set of 2-dimensional polynomial coefficients is then obtained to approximate the result analytically. The offset calibration of the BPMs is done relative to the magnetic axis of the quadrupoles using the beam. This avoids the problem arising from various mechanical sources as well as the offset in the processing electronics. The measurement results for the resolution and long-term drift of the BPM electronics shows 0.06-μm/√Hz resolution and 2-μm/hr drift over a period of 1.5 hrs

  11. Information Seeking and Satisfaction with Information Sources Among Spouses of Men with Newly Diagnosed Local-Stage Prostate Cancer.

    Science.gov (United States)

    Bansal, Aasthaa; Koepl, Lisel M; Fedorenko, Catherine R; Li, Chunyu; Smith, Judith Lee; Hall, Ingrid J; Penson, David F; Ramsey, Scott D

    2018-04-01

    Information sources about prostate cancer treatment and outcomes are typically designed for patients. Little is known about the availability and utility of information for partners. The objectives of our study were to evaluate information sources used by partners to understand prostate cancer management options, their perceived usefulness, and the relationship between sources used and satisfaction with treatment experience. A longitudinal survey of female partners of men newly diagnosed with local-stage prostate cancer was conducted in three different geographic regions. Partners and associated patients were surveyed at baseline (after patient diagnosis but prior to receiving therapy) and at 12 months following diagnosis. Information sources included provider, literature, friends or family members, Internet websites, books, traditional media, and support groups. Utility of an information source was defined as whether the partner would recommend it to caregivers of other patients with local-stage prostate cancer. Our study cohort included 179 partner-patient pairs. At diagnosis, partners consulted an average of 4.6 information sources. Non-Hispanic white partners were more likely than others to use friends and family as an information source (OR = 2.44, 95% CI (1.04, 5.56)). More educated partners were less likely to use support groups (OR = 0.31, 95% CI (0.14, 0.71)). At 12-month follow-up, partners were less likely to recommend books (OR = 0.23, 95% CI (0.11, 0.49)) compared to baseline. Partners consulted a large number of information sources in researching treatment options for local-stage prostate cancer and the types of sources accessed varied by race/ethnicity and educational attainment. Additional resources to promote selection of high-quality non-provider information sources are warranted to enable partners to better aid patients in their treatment decision-making process.

  12. Chemotherapy and information‐seeking behaviour: characteristics of patients using mass‐media information sources

    NARCIS (Netherlands)

    Muusses, L.D.; van Weert, J.C.M.; van Dulmen, S; Jansen, extern

    2011-01-01

    Objective Fulfilling patients' information needs can help them cope with illness and improve their well-being. Little research has been conducted on the characteristics of patients using different information sources. This study aims to get insight into which information sources patients receiving

  13. Source of Sex Information and Condom Use Intention among Latino Adolescents

    Science.gov (United States)

    Eversole, Jillian S.; Berglas, Nancy F.; Deardorff, Julianna; Constantine, Norman A.

    2017-01-01

    Adolescence is a common time for sexual initiation and information seeking about sexual health, yet little is known about how adolescents' sources of information about sex influence their sexual beliefs and behaviors. This is particularly true for Latino adolescents, whose sources of sex information and sexual behaviors are vastly understudied. A…

  14. 50 CFR 424.13 - Sources of information and relevant data.

    Science.gov (United States)

    2010-10-01

    ... 50 Wildlife and Fisheries 7 2010-10-01 2010-10-01 false Sources of information and relevant data... Sources of information and relevant data. When considering any revision of the lists, the Secretary shall..., administrative reports, maps or other graphic materials, information received from experts on the subject, and...

  15. a Cultural Landscape Information System Developed with Open Source Tools

    Science.gov (United States)

    Chudyk, C.; Müller, H.; Uhler, M.; Würriehausen, F.

    2013-07-01

    Since 2010, the state of Rhineland-Palatinate in Germany has developed a cultural landscape information system as a process to secure and further enrich aggregate data about its cultural assets. In an open dialogue between governing authorities and citizens, the intention of the project is an active cooperation of public and private actors. A cultural landscape information system called KuLIS was designed as a web platform, combining semantic wiki software with a geographic information system. Based on data sets from public administrations, the information about cultural assets can be extended and enhanced by interested participants. The developed infrastructure facilitates local information accumulation through a crowdsourcing approach. This capability offers new possibilities for e-governance and open data developments. The collaborative approach allows governing authorities to manage and supervise official data, while public participation enables affordable information acquisition. Gathered cultural heritage information can provide incentives for touristic valorisation of communities or concepts for strengthening regional identification. It can also influence political decisions in defining significant cultural regions worth of protecting from industrial influences. The presented cultural landscape information allows citizens to influence the statewide development of cultural landscapes in a democratic way.

  16. AAEC INIS - a large, new, on-line information source

    International Nuclear Information System (INIS)

    Rugg, T.J.; Wong, S.C.

    1984-01-01

    The Australian Atomic Energy Commission's INIS database is available for on-line searching by non-AAEC personnel from all parts of Australia. An introduction to the International Nuclear Information System is followed by information on searching AAEC INIS, AAEC INIS retrieval software and accessing AAEC INIS

  17. The Internet as a Source of Information about Sexuality

    Science.gov (United States)

    Daneback, Kristian; Mansson, Sven-Axel; Ross, Michael W.; Markham, Christine M.

    2012-01-01

    To use the Internet for sex educational purposes and for sex information has been recognised by prior research as benefits of the technological development and important areas to investigate, but few empirical studies have so far been conducted. The purpose of this study was to identify those who use the Internet to seek information about sexual…

  18. MetaLIMS, a simple open-source laboratory information management system for small metagenomic labs.

    Science.gov (United States)

    Heinle, Cassie Elizabeth; Gaultier, Nicolas Paul Eugène; Miller, Dana; Purbojati, Rikky Wenang; Lauro, Federico M

    2017-06-01

    As the cost of sequencing continues to fall, smaller groups increasingly initiate and manage larger sequencing projects and take on the complexity of data storage for high volumes of samples. This has created a need for low-cost laboratory information management systems (LIMS) that contain flexible fields to accommodate the unique nature of individual labs. Many labs do not have a dedicated information technology position, so LIMS must also be easy to setup and maintain with minimal technical proficiency. MetaLIMS is a free and open-source web-based application available via GitHub. The focus of MetaLIMS is to store sample metadata prior to sequencing and analysis pipelines. Initially designed for environmental metagenomics labs, in addition to storing generic sample collection information and DNA/RNA processing information, the user can also add fields specific to the user's lab. MetaLIMS can also produce a basic sequencing submission form compatible with the proprietary Clarity LIMS system used by some sequencing facilities. To help ease the technical burden associated with web deployment, MetaLIMS options the use of commercial web hosting combined with MetaLIMS bash scripts for ease of setup. MetaLIMS overcomes key challenges common in LIMS by giving labs access to a low-cost and open-source tool that also has the flexibility to meet individual lab needs and an option for easy deployment. By making the web application open source and hosting it on GitHub, we hope to encourage the community to build upon MetaLIMS, making it more robust and tailored to the needs of more researchers. © The Authors 2017. Published by Oxford University Press.

  19. Applying to Higher Education: Information Sources and Choice Factors

    Science.gov (United States)

    Simoes, Claudia; Soares, Ana Maria

    2010-01-01

    Higher education institutions are facing increasingly complex challenges, which demand a deeper understanding of the sources prospective students use when applying to a higher education institution. This research centres on students' decision-making process for higher education institutions, focusing on the pre-purchase period, and, in particular,…

  20. Open source communities: an integrally informed approach to organizational transformation

    NARCIS (Netherlands)

    Millar-Schijf, Carla C.J.M.; Choi, C.J.; Russell, E.T.; Kim, J.-B.

    2005-01-01

    Purpose - To reframe analysis of the open source software (OSS) phenomenon from an AQAL perspectiveDesign/methodology/approach - The approach is a review of current research thinking and application of the AQAL framework to suggest resolution of polarizations.Findings - The authors find that AQAL is

  1. Sources and Information: Development and Fundraising within Community Colleges

    Science.gov (United States)

    Ryan, Edward Francis

    2003-01-01

    Faced with significant budget constraints, state governments and local municipalities have been reducing the financial support they provide to public colleges and universities. To deal with these funding shortfalls, community colleges have begun searching for alternate sources of funding. Rather than raise tuition, which would limit access for…

  2. Anticipation in turn-taking: mechanisms and information sources.

    Science.gov (United States)

    Riest, Carina; Jorschick, Annett B; de Ruiter, Jan P

    2015-01-01

    During conversations participants alternate smoothly between speaker and hearer roles with only brief pauses and overlaps. There are two competing types of accounts about how conversationalists accomplish this: (a) the signaling approach and (b) the anticipatory ('projection') approach. We wanted to investigate, first, the relative merits of these two accounts, and second, the relative contribution of semantic and syntactic information to the timing of next turn initiation. We performed three button-press experiments using turn fragments taken from natural conversations to address the following questions: (a) Is turn-taking predominantly based on anticipation or on reaction, and (b) what is the relative contribution of semantic and syntactic information to accurate turn-taking. In our first experiment we gradually manipulated the information available for anticipation of the turn end (providing information about the turn end in advance to completely removing linguistic information). The results of our first experiment show that the distribution of the participants' estimation of turn-endings for natural turns is very similar to the distribution for pure anticipation. We conclude that listeners are indeed able to anticipate a turn-end and that this strategy is predominantly used in turn-taking. In Experiment 2 we collected purely reacted responses. We used the distributions from Experiments 1 and 2 together to estimate a new dependent variable called Reaction Anticipation Proportion. We used this variable in our third experiment where we manipulated the presence vs. absence of semantic and syntactic information by low-pass filtering open-class and closed class words in the turn. The results suggest that for turn-end anticipation, both semantic and syntactic information are needed, but that the semantic information is a more important anticipation cue than syntactic information.

  3. ACCOUNTING - A SOURCE OF INFORMATION WITHIN THE MANAGEMENT SYSTEM

    Directory of Open Access Journals (Sweden)

    BUŞAN GABRIELA

    2014-05-01

    Full Text Available Accounting information system is a complex system of registration and processing of goods movement, the reflection of the rights and obligations with economic value; it is necessary and indispensable to the economy. Through its own system of concepts and procedures, accounting is the only discipline that can provide information that form the basis of the assessment of an organization by a wide category of users. Those in need of information for the purpose of making accounting decisions on allocating economic resources efficiently and effectively.

  4. Multiple sclerosis: patients’ information sources and needs on disease symptoms and management

    Directory of Open Access Journals (Sweden)

    Albert I Matti

    2010-06-01

    Full Text Available Albert I Matti1, Helen McCarl2, Pamela Klaer2, Miriam C Keane1, Celia S Chen11Department of Ophthalmology, Flinders Medical Centre and Flinders University, Bedford Park, SA, Australia; 2The Multiple Sclerosis Society of South Australia and Northern Territory, Klemzig, SA, AustraliaObjective: To investigate the current information sources of patients with multiple sclerosis (MS in the early stages of their disease and to identify patients’ preferred source of information. The relative amounts of information from the different sources were also compared.Methods: Participants at a newly diagnosed information session organized by the Multiple Sclerosis Society of South Australia were invited to complete a questionnaire. Participants were asked to rate on a visual analog scale how much information they had received about MS and optic neuritis from different information sources and how much information they would like to receive from each of the sources.Results: A close to ideal amount of information is being provided by the MS society and MS specialist nurses. There is a clear deficit between what information patients are currently receiving and the amount of information they actually want from various sources. Patients wish to receive significantly more information from treating general practitioners, eye specialists, neurologists, and education sessions. Patients have identified less than adequate information received on optic neuritis from all sources.Conclusion: This study noted a clear information deficit regarding MS from all sources. This information deficit is more pronounced in relation to optic neuritis and needs to be addressed in the future.Practice implications: More patient information and counselling needs to be provided to MS patients even at early stages of their disease, especially in relation to management of disease relapse.Keywords: information sources, information needs, MS patients, optic neuritis

  5. Sources of training and of information for the teachers: the situation in France

    International Nuclear Information System (INIS)

    Marty, D.

    1994-01-01

    The best for an efficient communication is to stimulate the teachers' demand for information about nuclear energy. CEA, seen as the best information source for teachers, tries to apply this method (books, exhibitions, conferences, workshops). It is necessary to communicate following its legitimacy, to take into account the various sources of information, to communicate to these various sources and finally to help the citizen to detect the exaggerations of all kinds. In brief, inspire confidence

  6. Health information sources for different types of information used by Chinese patients with cancer and their family caregivers.

    Science.gov (United States)

    Xie, Bo; Su, Zhaohui; Liu, Yihao; Wang, Mo; Zhang, Ming

    2017-08-01

    Little is known about the information sources of Chinese patients with cancer and their family caregivers, yet this knowledge is critical for providing patient-centred care. To assess and compare the information sources used by Chinese patients with cancer and their family caregivers. The validated Health Information Wants Questionnaire (HIWQ) was translated and administered in March 2014. The oncology department of a general hospital in south-west China. A convenience sample of 198 individuals, including 79 patients with cancer (mean age=55.24, SD=13.80) and 119 family caregivers (mean age=46.83, SD=14.61). Ratings on the HIWQ items assessing information sources for different types of information. The interaction between information source and group was significant (F 3,576 =6.32, Pinformation than patients from the Internet. Caregivers and patients did not differ in the amount of information they obtained from doctors/nurses, interpersonal contacts or mass media. The interaction between information type and information source was significant (F 18,3456 =6.38, Pinformation of all types from doctors/nurses than from the other three sources and obtained more information from interpersonal contacts than from mass media or the Internet. The information sources of Chinese patients with cancer and their family caregivers were similar, with an important difference that caregivers obtained more online information than patients. These findings have important implications for patient care and education in China where the family typically plays a major role in the care and decision making. © 2016 The Authors. Health Expectations Published by John Wiley & Sons Ltd.

  7. Social network profiles as information sources for adolescents' offline relations

    OpenAIRE

    Courtois, Cédric; All, Anissa

    2012-01-01

    This paper presents the results of a study concerning the use of profile pages by adolescents to get to know more about offline friends and acquaintances. Previous research has indicated that social network sites are used to gather information on new online contacts. However, several studies have demonstrated a substantial overlap between offline and online social networks. Hence, we question whether online profiles are meaningful in gathering information on these 'offline' friends and acquai...

  8. Social network profiles as information sources for adolescents' offline relations

    OpenAIRE

    Courtois, Cédric; All, Anissa; Vanwynsberghe, Hadewijch

    2012-01-01

    This paper presents the results of a study concerning the use of online profile pages by adolescents to know more about “offline” friends and acquaintances. Previous research has indicated that social networking sites (SNSs) are used to gather information on new online contacts. However, several studies have demonstrated a substantial overlap between offline and online social networks. Hence, we question whether online connections are meaningful in gathering information on offline friends and...

  9. Ageing of information - A new source of uncertainties?

    International Nuclear Information System (INIS)

    Nagy, Z.

    2009-01-01

    According to the Hungarian legislation safety assessment is required in the preparation-, establishment-, operational-, closure-licensing phase of repository development and during the operation of the repository the safety assessment should be reviewed and updated regularly. It means that the safety assessment will be made many times during the repository developing process, between two consecutive safety assessments more decades may elapse and between the first and the last safety assessment more than one century will elapse. The assessment of long-term safety is based partly upon geo-scientific information. Will the information originated from many decades or 100 years old research be really used as the basis of the new safety case? Does the geo-scientific information age? Does the confidence in information or quality of information remain on the same level during several decades? If not, what are the causes and consequences of this confidence-level decrease, what can we do to prevent or to postpone this confidence-level decrease? When does an information become too old to use it in a safety assessment? Are each part of the assessment capability touched by the decrease of confidence in the same extent? (authors)

  10. Information sources - information targets: evaluative aspects of the scientists’ publication strategies

    Energy Technology Data Exchange (ETDEWEB)

    Glaenzel, W.; Chi, P.S.; Gumpenberger, C.; Gorraiz, J.

    2016-07-01

    Journal citation measures, if properly used, provide important information on the author’s publication strategy. In this explorative study, which is part of a larger project, we attempt to shed light on to what extent publication strategies are adequately reflected by the impact generated in the respective scientific community in the context of academic research assessment at micro level.In this paper we present three cases based on the research output of researchers active in three different fields: chemistry, medicine and economics. In each individual case, the lists of journals, in which the author in question has published along with the journals in the reference lists and those where the citing papers have been published, are analysed according to two aspects, the congruence of the three resulting lists and the overlap by journal quartiles based on field-normalised impact. Similarity measures are then introduced at both levels.The results reveal important aspects of the authors’ publication strategy and their position in the information flow enabling the identification of different scenarios, which are discussed in detail in order to be correctly applied for bibliometric individual assessment. (Author)

  11. Sealed Radioactive Sources. Information, Resources, and Advice for Key Groups about Preventing the Loss of Control over Sealed Radioactive Sources

    International Nuclear Information System (INIS)

    2013-10-01

    Among its many activities to improve the safety and security of sealed sources, the IAEA has been investigating the root causes of major accidents and incidents since the 1980's and publishes findings so that others can learn from them. There are growing concerns today about the possibility that an improperly stored source could be stolen and used for malicious purposes. To improve both safety and security, information needs to be in the hands of those whose actions and decisions can prevent a source from being lost or stolen in the first place. The IAEA developed this booklet to help improve communication with key groups about hazards that may result from the loss of control over sealed radioactive sources and measures that should be implemented to prevent such loss of control. Many people may benefit from the information contained in this booklet, particularly those working with sources and those likely to be involved if control over a source is lost; especially: officials in government agencies, first responders, medical users, industrial users and the metal recycling industry. The general public may also benefit from an understanding of the fundamentals of radiation safety. This booklet is comprised of several stand-alone chapters intended to communicate with these key groups. Various accidents that are described and information that is provided are relevant to more than one key group and therefore, some information is repeated throughout the booklet. This booklet seeks to raise awareness of the importance of the safety and security of sealed radioactive sources. However, it is not intended to be a comprehensive 'how to' guide for implementing safety and security measures for sealed radioactive sources. For more information on these measures, readers are encouraged to consult the key IAEA safety and security-related publications identified in this booklet

  12. College Students' Health Information Activities on Facebook: Investigating the Impacts of Health Topic Sensitivity, Information Sources, and Demographics.

    Science.gov (United States)

    Syn, Sue Yeon; Kim, Sung Un

    2016-07-01

    College students tend to lack access to health information. Because social networking sites (SNSs) are popularly adopted by college students, SNSs are considered to be good media channels for college students to obtain health-related information. This study examines the factors that influence college students' health information-seeking and -sharing activities on Facebook. An online survey was distributed to college students between the ages of 18 and 29 to determine intentions pertaining to health information activities according to the factors identified for the study. The factors included both contextual factors (such as health topic sensitivity and health information sources) as well as user factors (such as demographics). Our findings showed that college students are willing to read and post health-related information on Facebook when the health topic is not sensitive. In addition, there are clear differences in preferences between professional sources and personal sources as health information sources. It was found that most user factors, except gender, have no influence on health information activities. The impacts of SNS contexts, awareness of information sources, types of interlocutors, and privacy concerns are further discussed.

  13. Decision making under uncertainty and information processing in positive and negative mood states.

    Science.gov (United States)

    Mohanty, Sachi Nandan; Suar, Damodar

    2014-08-01

    This study examines whether mood states (a) influence decision making under uncertainty and (b) affect information processing. 200 students at the Indian Institute of Technology Kharagpur participated in this study. Positive mood was induced by showing comedy movie clips to 100 participants and negative mood was induced by showing tragedy movie clips to another 100 participants. The participants were administered a questionnaire containing hypothetical situations of financial gains and losses, and a health risk problem. The participants selected a choice for each situation, and stated the reasons for their choice. Results suggested that the participants preferred cautious choices in the domain of gain and in health risk problems and risky choices in the domain of loss. Analysis of the reasons for the participants' choices suggested more fluency, originality, and flexibility of information in a negative mood compared to a positive mood. A negative (positive) mood state facilitated systematic (heuristic) information processing.

  14. Direct-to-consumer advertising skepticism and the use and perceived usefulness of prescription drug information sources.

    Science.gov (United States)

    DeLorme, Denise E; Huh, Jisu; Reid, Leonard N

    2009-01-01

    This study investigates advertising skepticism in the context of consumers' prescription drug information seeking behavior. Results of a telephone survey found that: (a) the overall level of direct-to-consumer advertising (DTCA) skepticism among consumers was neutral; (b) DTCA skepticism was unrelated to age, positively related to education and income, and varied by race; (c) however, when all the antecedent variables were considered concurrently, only education emerged as a significant predictor (consumers with higher education were more skeptical of DTCA); (d) DTCA skepticism was not significantly related to perceived importance of prescription drug information; (e) DTCA skepticism was not associated with use of advertising and interpersonal sources of prescription drug information; and (f) DTCA skepticism was negatively related to perceived usefulness of advertising sources but unrelated to perceived usefulness of professional interpersonal sources (i.e., physicians and pharmacists). The article concludes with a discussion of findings and directions for future research.

  15. The internet as a source of drug information: a profile of utilization by ...

    African Journals Online (AJOL)

    Open Access DOWNLOAD FULL TEXT ... Introduction: The internet is a useful tool which could provide quality drug information if well applied. Its utilization as a source of drug information by junior doctors in Nigeria is not well documented.

  16. Subjective Response to Foot-Fall Noise, Including Localization of the Source Position

    DEFF Research Database (Denmark)

    Brunskog, Jonas; Hwang, Ha Dong; Jeong, Cheol-Ho

    2011-01-01

    annoyance, using simulated binaural room impulse responses, with sources being a moving point source or a nonmoving surface source, and rooms being a room with a reverberation time of 0.5 s or an anechoic room. The paper concludes that no strong effect of the source localization on the annoyance can...

  17. Integrated photon sources for quantum information science applications

    Science.gov (United States)

    Fanto, M. L.; Tison, C. C.; Steidle, J. A.; Lu, T.; Wang, Z.; Mogent, N. A.; Rizzo, A.; Thomas, P. M.; Preble, S. F.; Alsing, P. M.; Englund, D. R.

    2017-10-01

    Ring resonators are used as photon pair sources by taking advantage of the materials second or third order non- linearities through the processes of spontaneous parametric downconversion and spontaneous four wave mixing respectively. Two materials of interest for these applications are silicon for the infrared and aluminum nitride for the ultraviolet through the infrared. When fabricated into ring type sources they are capable of producing pairs of indistinguishable photons but typically suffer from an effective 50% loss. By slightly decoupling the input waveguide from the ring, the drop port coincidence ratio can be significantly increased with the trade-off being that the pump is less efficiently coupled into the ring. Ring resonators with this design have been demonstrated having coincidence ratios of 96% but requiring a factor of 10 increase in the pump power. Through the modification of the coupling design that relies on additional spectral dependence, it is possible to achieve similar coincidence ratios without the increased pumping requirement. This can be achieved by coupling the input waveguide to the ring multiple times, thus creating a Mach-Zehnder interferometer. This coupler design can be used on both sides of the ring resonator so that resonances supported by one of the couplers are suppressed by the other. This is the ideal configuration for a photon-pair source as it can only support the pump photons at the input side while only allowing the generated photons to leave through the output side. Recently, this device has been realized with preliminary results exhibiting the desired spectral dependence and with a coincidence ratio as high as 97% while allowing the pump to be nearly critically coupled to the ring. The demonstrated near unity coincidence ratio infers a near maximal heralding efficiency from the fabricated device. This device has the potential to greatly improve the scalability and performance of quantum computing and communication systems.

  18. 49 CFR 601.10 - Sources of information.

    Science.gov (United States)

    2010-10-01

    ... Transportation Other Regulations Relating to Transportation (Continued) FEDERAL TRANSIT ADMINISTRATION... information are available on FTA's Web site: http://www.fta.dot.gov. (2) Single copies of any guidance... request to the Associate Administrator for Administration, Federal Transit Administration, 400 7th Street...

  19. INFORMATION SOURCES FOR FINANCIAL ANALYSE IN THE ORGANISATION

    Directory of Open Access Journals (Sweden)

    Nora ŠTANGOVÁ

    2016-08-01

    Full Text Available Financial analysis is an essential part of the financial management of the company, as it acts as a feedback information, where the business is in different areas of the financial management, in which areas of the company the targets have been achieved and, conversely, in which areas the business is lagging behind the expectations.

  20. Smart Libraries: Integrating Communications Channels and Information Sources.

    Science.gov (United States)

    Webb, T. D.; Jensen, E. A.

    Noting that the changing nature of information delivery has established immediacy as the new basis for modern library service, this paper describes the new facilities design and floor plan for the library of Kapiolani Community College of the University of Hawaii. The new library was carefully designed so that students can move progressively from…

  1. Saudis trust and confidence in information sources about chemical ...

    African Journals Online (AJOL)

    The presence of toxic chemicals in the environment has drawn increasing concern in Saudi Arabia in recent years. Public health officials recognize a direct link between health problems and exposure to these chemicals. To communicate information on chemical pollution health risks effectively, policy makers must know ...

  2. Free and Open Source Management Information Systems and ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    The Humanist Institute for Co-operation with Developing Countries (HIVOS), a Dutch nongovernmental organization (NGO), has built up considerable experience in the area of microfinance since the 1970s. HIVOS is implementing a program (STAR) to put information and communication technology (ICT) to the service of ...

  3. Source apportionment of ambient particle number concentrations in central Los Angeles using positive matrix factorization (PMF

    Directory of Open Access Journals (Sweden)

    M. H. Sowlat

    2016-04-01

    Full Text Available In this study, the positive matrix factorization (PMF receptor model (version 5.0 was used to identify and quantify major sources contributing to particulate matter (PM number concentrations, using PM number size distributions in the range of 13 nm to 10 µm combined with several auxiliary variables, including black carbon (BC, elemental and organic carbon (EC/OC, PM mass concentrations, gaseous pollutants, meteorological, and traffic counts data, collected for about 9 months between August 2014 and 2015 in central Los Angeles, CA. Several parameters, including particle number and volume size distribution profiles, profiles of auxiliary variables, contributions of different factors in different seasons to the total number concentrations, diurnal variations of each of the resolved factors in the cold and warm phases, weekday/weekend analysis for each of the resolved factors, and correlation between auxiliary variables and the relative contribution of each of the resolved factors, were used to identify PM sources. A six-factor solution was identified as the optimum for the aforementioned input data. The resolved factors comprised nucleation, traffic 1, traffic 2 (with a larger mode diameter than traffic 1 factor, urban background aerosol, secondary aerosol, and soil/road dust. Traffic sources (1 and 2 were the major contributor to PM number concentrations, collectively making up to above 60 % (60.8–68.4 % of the total number concentrations during the study period. Their contribution was also significantly higher in the cold phase compared to the warm phase. Nucleation was another major factor significantly contributing to the total number concentrations (an overall contribution of 17 %, ranging from 11.7 to 24 %, with a larger contribution during the warm phase than in the cold phase. The other identified factors were urban background aerosol, secondary aerosol, and soil/road dust, with relative contributions of approximately 12

  4. Social Media as Source of Medical Information for Healthcare Students

    Directory of Open Access Journals (Sweden)

    Ariana Anamaria CORDOȘ

    2016-03-01

    Full Text Available Introduction: The scope of the research was a more detailed understanding of the influence of social media and the importance of student’s usage of social media context in relation to medical information. The research aimed to increase the understanding of social media and the impact on medical information use, informing policy and practice while highlighting gaps in the literature and areas for further research. Methods: The search of PubMed database was performed in October 2015, using terms to identify peer-reviewed research in which social media technologies were an important feature for health occupations, premedical, pharmacy, nursing or medical students. A systematic approach was used to retrieve papers and extract relevant data. Results: There were initially identified 435 studies involving social media, healthcare information and medical students subject headings (MeSH terminology. After filtering for free full text articles, and exclusion of not students or social media specific ones, 33 articles were reviewed. The majority of the studies were interventional studies that either assessed the outcomes of online discussion groups or teaching methods through social media. The majority of studies focused on the use of social media as a teaching tool, how students use it and the implications upon their education. The largest number of original papers was published in 2013. Facebook, Podcasts, Multiplayer virtual worlds, Blogs, and Twitter were identified as being used by medical students. Conclusion: Social media is used as a tool of information for students mainly as the means for engaging and communicating with students.

  5. Environmental Toxicology: A Guide to Information Sources. Volume 7 in the "Man and the Environment Information Guide" Series.

    Science.gov (United States)

    Rudd, Robert L.

    This annotated bibliography on environmental toxicology brings together a diverse set of information sources from the physical, social, and natural sciences. These sources include periodical literature, government documents, scientific journals, and teaching materials. The volume is divided into sixteen sections organized into four parts: (1)…

  6. Informed cytology for triaging HPV-positive women: substudy nested in the NTCC randomized controlled trial.

    Science.gov (United States)

    Bergeron, Christine; Giorgi-Rossi, Paolo; Cas, Frederic; Schiboni, Maria Luisa; Ghiringhello, Bruno; Dalla Palma, Paolo; Minucci, Daria; Rosso, Stefano; Zorzi, Manuel; Naldoni, Carlo; Segnan, Nereo; Confortini, Massimo; Ronco, Guglielmo

    2015-02-01

    Human papillomavirus (HPV)-based screening needs triage. In most randomized controlled trials (RCTs) on HPV testing with cytological triage, cytology interpretation has been blind to HPV status. Women age 25 to 60 years enrolled in the New Technology in Cervical Cancer (NTCC) RCT comparing HPV testing with cytology were referred to colposcopy if HPV positive and, if no cervical intraepithelial neoplasia (CIN) was detected, followed up until HPV negativity. Cytological slides taken at the first colposcopy were retrieved and independently interpreted by an external laboratory, which was only aware of patients' HPV positivity. Sensitivity, specificity, and positive (PPV) and negative (NPV) predictive values were computed for histologically proven CIN2+ with HPV status-informed cytology for women with a determination of atypical squamous cells of undetermined significance (ASCUS) or more severe. All statistical tests were two-sided. Among HPV-positive women, informed cytology had cross-sectional sensitivity, specificity, PPV and 1-NPV for CIN2+ of 85.6% (95% confidence interval [CI] = 76.6 to 92.1), 65.9% (95% CI = 63.1 to 68.6), 16.2% (95% CI = 13.0 to 19.8), and 1.7 (95% CI = 0.9 to 2.8), respectively. Cytology was also associated with subsequent risk of newly diagnosed CIN2+ and CIN3+. The cross-sectional relative sensitivity for CIN2+ vs blind cytology obtained by referring to colposcopy and following up only HPV positive women who had HPV status-informed cytology greater than or equal to ASCUS was 1.58 (95% CI = 1.22 to 2.01), while the corresponding relative referral to colposcopy was 0.95 (95% CI = 0.86 to 1.04). Cytology informed of HPV positivity is more sensitive than blind cytology and could allow longer intervals before retesting HPV-positive, cytology-negative women. © The Author 2015. Published by Oxford University Press.

  7. A Survey of Information Source Preferences of Parents of Individuals with Autism Spectrum Disorder.

    Science.gov (United States)

    Gibson, Amelia N; Kaplan, Samantha; Vardell, Emily

    2017-07-01

    For parents of children with an Autism spectrum disorder (ASD), high quality, easily accessible information and a strong peer network can be the key to raising a happy, healthy child, and maintaining family well-being and emotional resilience. This article reports the findings of an anonymous survey examining the information source preferences for 935 parents of individuals with ASDs in North Carolina. Data indicates that parents show similar information seeking patterns across the age spectrum, that availability of information (as indicated by overall information source selection) decrease as children age. It also shows that parents rely heavily on local sources of information, preferring them to nonlocal sources (such as the internet) for many types of information.

  8. American Art Music in the Twentieth-Century: An Assessment of the Basic Information Sources.

    Science.gov (United States)

    Green, Alan Anthony

    This assessment of 62 reference sources that contain information on U.S. art (classical) music of the twentieth century examines the following categories of sources: (1) Pilot Sources; (2) Lexica; (3) Histories and Chronologies; (4) Gesamtausgaben, Denkmaler, and Thematic catalogs; (5) Indexes and Bibliographies of Literature; (6) Lists of Music…

  9. A Method for the Analysis of Information Use in Source-Based Writing

    Science.gov (United States)

    Sormunen, Eero; Heinstrom, Jannica; Romu, Leena; Turunen, Risto

    2012-01-01

    Introduction: Past research on source-based writing assignments has hesitated to scrutinize how students actually use information afforded by sources. This paper introduces a method for the analysis of text transformations from sources to texts composed. The method is aimed to serve scholars in building a more detailed understanding of how…

  10. Preferred Information Sources of High School Students for Community Colleges and Universities

    Science.gov (United States)

    Goff, Brent; Patino, Vanessa; Jackson, Gary

    2004-01-01

    To effectively communicate with potential students, it is important to utilize their preferred information sources. Survey data were gathered from 716 high school students who planned to attend college. There were communication source differences based on race and intent to attend two-year vs. four-year institutions. Important information sources…

  11. Multinational Scanning: A Study of the Information Sources Utilized by Headquarters Executives in Multinational Companies

    Science.gov (United States)

    Keegan, Warren J.

    1974-01-01

    Findings reveal the great importance of human sources of information and sources outside the organization. Divisional boundaries, functional specialization, and level were all found to act as significant barriers to information flows, and thus as limitations to organizational effectiveness. (Author/WM)

  12. Adolescent Health Literacy: The Importance of Credible Sources for Online Health Information

    Science.gov (United States)

    Ghaddar, Suad F.; Valerio, Melissa A.; Garcia, Carolyn M.; Hansen, Lucy

    2012-01-01

    Background: Little research has examined adolescent health literacy and its relationship with online health information sources. The purpose of this study is to explore health literacy among a predominantly Hispanic adolescent population and to investigate whether exposure to a credible source of online health information, MedlinePlus[R], is…

  13. 21 CFR 1301.93 - Sources of information for employee checks.

    Science.gov (United States)

    2010-04-01

    ... OF MANUFACTURERS, DISTRIBUTORS, AND DISPENSERS OF CONTROLLED SUBSTANCES Employee Screening-Non-Practitioners § 1301.93 Sources of information for employee checks. DEA recommends that inquiries concerning... 21 Food and Drugs 9 2010-04-01 2010-04-01 false Sources of information for employee checks. 1301...

  14. the effect of current and relevant information sources on the use

    African Journals Online (AJOL)

    Admin

    reported similar findings at Yaba College of. Technology, Lagos. However, in a ... values. In other words, current information sources resulted in the use of the library. Jam (1992) identified lack of relevant information sources to be one of the problems facing library users and has ... Bachelor's degree holders. That those with.

  15. Multiple information sources and consequences of conflicting information about medicine use during pregnancy: a multinational Internet-based survey.

    Science.gov (United States)

    Hämeen-Anttila, Katri; Nordeng, Hedvig; Kokki, Esa; Jyrkkä, Johanna; Lupattelli, Angela; Vainio, Kirsti; Enlund, Hannes

    2014-02-20

    A wide variety of information sources on medicines is available for pregnant women. When using multiple information sources, there is the risk that information will vary or even conflict. The objective of this multinational study was to analyze the extent to which pregnant women use multiple information sources and the consequences of conflicting information, and to investigate which maternal sociodemographic, lifestyle, and medical factors were associated with these objectives. An anonymous Internet-based questionnaire was made accessible during a period of 2 months, on 1 to 4 Internet websites used by pregnant women in 5 regions (Eastern Europe, Western Europe, Northern Europe, Americas, Australia). A total of 7092 responses were obtained (n=5090 pregnant women; n=2002 women with a child younger than 25 weeks). Descriptive statistics and logistic regression analysis were used. Of the respondents who stated that they needed information, 16.16% (655/4054) used one information source and 83.69% (3393/4054) used multiple information sources. Of respondents who used more than one information source, 22.62% (759/3355) stated that the information was conflicted. According to multivariate logistic regression analysis, factors significantly associated with experiencing conflict in medicine information included being a mother (OR 1.32, 95% CI 1.11-1.58), having university (OR 1.33, 95% CI 1.09-1.63) or other education (OR 1.49, 95% CI 1.09-2.03), residing in Eastern Europe (OR 1.52, 95% CI 1.22-1.89) or Australia (OR 2.28, 95% CI 1.42-3.67), use of 3 (OR 1.29, 95% CI 1.04-1.60) or >4 information sources (OR 1.82, 95% CI 1.49-2.23), and having ≥2 chronic diseases (OR 1.49, 95% CI 1.18-1.89). Because of conflicting information, 43.61% (331/759) decided not to use medication during pregnancy, 30.30% (230/759) sought a new information source, 32.67% (248/759) chose to rely on one source and ignore the conflicting one, 25.03% (190/759) became anxious, and 2.64% (20/759) did

  16. Beyond 1984: The Positive and Negative Potential of Computer Supported School Focused Information Systems.

    Science.gov (United States)

    Klein, Susan S.

    Although educators' use of computers to track student and school information with the attendant positive and negative outcomes is still in an early stage of development, accessible data from such systems could improve the objective rationality of educational and instructional decision-making as long as no one places unwarranted credibility in the…

  17. Perceived relevance and information needs regarding food topics and preferred information sources among Dutch adults: results of a quantitative consumer study

    NARCIS (Netherlands)

    Dillen, van S.M.E.; Hiddink, G.J.; Koelen, M.A.; Graaf, de C.; Woerkum, van C.M.J.

    2004-01-01

    Objective: For more effective nutrition communication, it is crucial to identify sources from which consumers seek information. Our purpose was to assess perceived relevance and information needs regarding food topics, and preferred information sources by means of quantitative consumer research.

  18. Geophysical monitoring as an information source of rock massif behaviour

    Directory of Open Access Journals (Sweden)

    Pavel Bláha

    2008-06-01

    Full Text Available Geophysical measurements are an integral part of engineering-geological investigation where theypresent a wide range of useful information about the tested geological medium and about its geotechnicalqualities. Lately, repeated geophysical measurements in different time intervals have been used to judgethe changes occurring in the rock massif. These measurements bear the characteristics of total monitoring.This total monitoring contains series of repeated measurements and further an integrated spectrum of linkedactivities including evaluation, comparison with the warning state and making a decision about takingprecautions. From the range of geophysical methods and methodologies used for monitoring in full sensewe may mention, for example, continuous seismoacoustic measurements in mining constructions; (whichmay result even in recalling of the personnel, and further, also seismic measurements in the surroundingsof atomic power stations and measurements considering the protection against radioactive elements and their decay components.As a full monitoring we may also classify measurements in dumping sites with the aid of repeated geoelectrical measurements in the system of fixed electrodes under impermeable foils.These measurements are mostly carried out from time to time followed by taking immediate action when the foil is found damaged. In practice the term monitoring is used, although not very correctly, for all periodically repeated measurements, which do not result in taking action or interference, but supply a wide range of information about the rock massif behavior in time.

  19. AUTOMATIC REGISTRATION OF MULTI-SOURCE DATA USING MUTUAL INFORMATION

    Directory of Open Access Journals (Sweden)

    E. G. Parmehr

    2012-07-01

    Full Text Available Automatic image registration is a basic step in multi-sensor data integration in remote sensing and photogrammetric applications such as data fusion. The effectiveness of Mutual Information (MI as a technique for automated multi-sensor image registration has previously been demonstrated for medical and remote sensing applications. In this paper, a new General Weighted MI (GWMI approach that improves the robustness of MI to local maxima, particularly in the case of registering optical imagery and 3D point clouds, is presented. Two different methods including a Gaussian Mixture Model (GMM and Kernel Density Estimation have been used to define the weight function of joint probability, regardless of the modality of the data being registered. The Expectation Maximizing method is then used to estimate parameters of GMM, and in order to reduce the cost of computation, a multi-resolution strategy has been used. The performance of the proposed GWMI method for the registration of aerial orthotoimagery and LiDAR range and intensity information has been experimentally evaluated and the results obtained are presented.

  20. Restoring the lattice of Si-based atom probe reconstructions for enhanced information on dopant positioning.

    Science.gov (United States)

    Breen, Andrew J; Moody, Michael P; Ceguerra, Anna V; Gault, Baptiste; Araullo-Peters, Vicente J; Ringer, Simon P

    2015-12-01

    The following manuscript presents a novel approach for creating lattice based models of Sb-doped Si directly from atom probe reconstructions for the purposes of improving information on dopant positioning and directly informing quantum mechanics based materials modeling approaches. Sophisticated crystallographic analysis techniques are used to detect latent crystal structure within the atom probe reconstructions with unprecedented accuracy. A distortion correction algorithm is then developed to precisely calibrate the detected crystal structure to the theoretically known diamond cubic lattice. The reconstructed atoms are then positioned on their most likely lattice positions. Simulations are then used to determine the accuracy of such an approach and show that improvements to short-range order measurements are possible for noise levels and detector efficiencies comparable with experimentally collected atom probe data. Copyright © 2015 Elsevier B.V. All rights reserved.

  1. An Upper Bound on Orbital Debris Collision Probability When Only One Object has Position Uncertainty Information

    Science.gov (United States)

    Frisbee, Joseph H., Jr.

    2015-01-01

    Upper bounds on high speed satellite collision probability, P (sub c), have been investigated. Previous methods assume an individual position error covariance matrix is available for each object. The two matrices being combined into a single, relative position error covariance matrix. Components of the combined error covariance are then varied to obtain a maximum P (sub c). If error covariance information for only one of the two objects was available, either some default shape has been used or nothing could be done. An alternative is presented that uses the known covariance information along with a critical value of the missing covariance to obtain an approximate but useful P (sub c) upper bound. There are various avenues along which an upper bound on the high speed satellite collision probability has been pursued. Typically, for the collision plane representation of the high speed collision probability problem, the predicted miss position in the collision plane is assumed fixed. Then the shape (aspect ratio of ellipse), the size (scaling of standard deviations) or the orientation (rotation of ellipse principal axes) of the combined position error ellipse is varied to obtain a maximum P (sub c). Regardless as to the exact details of the approach, previously presented methods all assume that an individual position error covariance matrix is available for each object and the two are combined into a single, relative position error covariance matrix. This combined position error covariance matrix is then modified according to the chosen scheme to arrive at a maximum P (sub c). But what if error covariance information for one of the two objects is not available? When error covariance information for one of the objects is not available the analyst has commonly defaulted to the situation in which only the relative miss position and velocity are known without any corresponding state error covariance information. The various usual methods of finding a maximum P (sub c) do

  2. How do informal information sources influence women's decision-making for birth? A meta-synthesis of qualitative studies.

    Science.gov (United States)

    Sanders, Ruth A; Crozier, Kenda

    2018-01-10

    Women approach birth using various methods of preparation drawing from conventional healthcare providers alongside informal information sources (IIS) outside the professional healthcare context. An investigation of the forms in which these informal information sources are accessed and negotiated by women, and how these disconnected and often conflicting elements influence women's decision-making process for birth have yet to be evaluated. The level of antenatal preparedness women feel can have significant and long lasting implications on their birth experience and transition into motherhood and beyond. The aim of this study was to provide a deeper understanding of how informal information sources influence women's preparation for birth. Seven electronic databases were searched with predetermined search terms. No limitations were imposed for year of publication. English language studies using qualitative methods exploring women's experiences of informal information sources and their impact upon women's birth preparation were included, subject to a quality appraisal framework. Searches were initiated in February 2016 and completed by March 2016. Studies were synthesised using an interpretive meta-ethnographic approach. Fourteen studies were included for the final synthesis from Great Britain, Australia, Canada and the United States. Four main themes were identified: Menu Birth; Information Heaven/Hell; Spheres of Support; and Trust. It is evident that women do not enter pregnancy as empty vessels devoid of a conceptual framework, but rather have a pre-constructed embodied knowledge base upon which other information is superimposed. Allied to this, it is clear that informal information was sought to mitigate against the widespread experience of discordant information provided by maternity professionals. Women's access to the deluge of informal information sources in mainstream media during pregnancy have significant impact on decision making for birth. These informal

  3. Segmentation and clustering as complementary sources of information

    Science.gov (United States)

    Dale, Michael B.; Allison, Lloyd; Dale, Patricia E. R.

    2007-03-01

    This paper examines the effects of using a segmentation method to identify change-points or edges in vegetation. It identifies coherence (spatial or temporal) in place of unconstrained clustering. The segmentation method involves change-point detection along a sequence of observations so that each cluster formed is composed of adjacent samples; this is a form of constrained clustering. The protocol identifies one or more models, one for each section identified, and the quality of each is assessed using a minimum message length criterion, which provides a rational basis for selecting an appropriate model. Although the segmentation is less efficient than clustering, it does provide other information because it incorporates textural similarity as well as homogeneity. In addition it can be useful in determining various scales of variation that may apply to the data, providing a general method of small-scale pattern analysis.

  4. Hair: a complementary source of bioanalytical information in forensic toxicology.

    Science.gov (United States)

    Barroso, Mário; Gallardo, Eugenia; Vieira, Duarte Nuno; López-Rivadulla, Manuel; Queiroz, João António

    2011-01-01

    Hair has been used for years in the assessment and documentation of human exposure to drugs, as it presents characteristics that make it extremely valuable for this purpose, namely the fact that sample collection is performed in a noninvasive manner, under close supervision, the possibility of collecting a specimen reflecting a similar timeline in the case of claims or suspicion of a leak in the chain of custody, and the increased window of detection for the drugs. For these reasons, testing for drugs in hair provides unique and useful information in several fields of toxicology, from which the most prominent is the possibility of studying individual drug use histories by means of segmental analysis. This paper will review the unique role of hair as a complementary sample in documenting human exposure to drugs in the fields of clinical and forensic toxicology and workplace drug testing.

  5. Maximum likelihood estimation of the position of a radiating source in a waveguide

    International Nuclear Information System (INIS)

    Hinich, M.J.

    1979-01-01

    An array of sensors is receiving radiation from a source of interest. The source and the array are in a one- or two-dimensional waveguide. The maximum-likelihood estimators of the coordinates of the source are analyzed under the assumptions that the noise field is Gaussian. The Cramer-Rao lower bound is of the order of the number of modes which define the source excitation function. The results show that the accuracy of the maximum likelihood estimator of source depth using a vertical array in a infinite horizontal waveguide (such as the ocean) is limited by the number of modes detected by the array regardless of the array size

  6. Development and Validation of a Standardized Tool for Prioritization of Information Sources.

    Science.gov (United States)

    Akwar, Holy; Kloeze, Harold; Mukhi, Shamir

    2016-01-01

    To validate the utility and effectiveness of a standardized tool for prioritization of information sources for early detection of diseases. The tool was developed with input from diverse public health experts garnered through survey. Ten raters used the tool to evaluate ten information sources and reliability among raters was computed. The Proc mixed procedure with random effect statement and SAS Macros were used to compute multiple raters' Fleiss Kappa agreement and Kendall's Coefficient of Concordance. Ten disparate information sources evaluated obtained the following composite scores: ProMed 91%; WAHID 90%; Eurosurv 87%; MediSys 85%; SciDaily 84%; EurekAl 83%; CSHB 78%; GermTrax 75%; Google 74%; and CBC 70%. A Fleiss Kappa agreement of 50.7% was obtained for ten information sources and 72.5% for a sub-set of five sources rated, which is substantial agreement validating the utility and effectiveness of the tool. This study validated the utility and effectiveness of a standardized criteria tool developed to prioritize information sources. The new tool was used to identify five information sources suited for use by the KIWI system in the CEZD-IIR project to improve surveillance of infectious diseases. The tool can be generalized to situations when prioritization of numerous information sources is necessary.

  7. Subfamily logos: visualization of sequence deviations at alignment positions with high information content

    Directory of Open Access Journals (Sweden)

    Beitz Eric

    2006-06-01

    Full Text Available Abstract Background Recognition of relevant sequence deviations can be valuable for elucidating functional differences between protein subfamilies. Interesting residues at highly conserved positions can then be mutated and experimentally analyzed. However, identification of such sites is tedious because automated approaches are scarce. Results Subfamily logos visualize subfamily-specific sequence deviations. The display is similar to classical sequence logos but extends into the negative range. Positive, upright characters correspond to residues which are characteristic for the subfamily, negative, upside-down characters to residues typical for the remaining sequences. The symbol height is adjusted to the information content of the alignment position. Residues which are conserved throughout do not appear. Conclusion Subfamily logos provide an intuitive display of relevant sequence deviations. The method has proven to be valid using a set of 135 aligned aquaporin sequences in which established subfamily-specific positions were readily identified by the algorithm.

  8. Positional information is reprogrammed in blastema cells of the regenerating limb of the axolotl (Ambystoma mexicanum).

    Science.gov (United States)

    McCusker, Catherine D; Gardiner, David M

    2013-01-01

    The regenerating region of an amputated salamander limb, known as the blastema, has the amazing capacity to replace exactly the missing structures. By grafting cells from different stages and regions of blastemas induced to form on donor animals expressing Green Fluorescent Protein (GFP), to non-GFP host animals, we have determined that the cells from early stage blastemas, as well as cells at the tip of late stage blastemas are developmentally labile such that their positional identity is reprogrammed by interactions with more proximal cells with stable positional information. In contrast, cells from the adjacent, more proximal stump tissues as well as the basal region of late bud blastemas are positionally stable, and thus form ectopic limb structures when grafted. Finally, we have found that a nerve is required to maintain the blastema cells in a positionally labile state, thus indicating a role for reprogramming cues in the blastema microenvironment.

  9. Positional information is reprogrammed in blastema cells of the regenerating limb of the axolotl (Ambystoma mexicanum.

    Directory of Open Access Journals (Sweden)

    Catherine D McCusker

    Full Text Available The regenerating region of an amputated salamander limb, known as the blastema, has the amazing capacity to replace exactly the missing structures. By grafting cells from different stages and regions of blastemas induced to form on donor animals expressing Green Fluorescent Protein (GFP, to non-GFP host animals, we have determined that the cells from early stage blastemas, as well as cells at the tip of late stage blastemas are developmentally labile such that their positional identity is reprogrammed by interactions with more proximal cells with stable positional information. In contrast, cells from the adjacent, more proximal stump tissues as well as the basal region of late bud blastemas are positionally stable, and thus form ectopic limb structures when grafted. Finally, we have found that a nerve is required to maintain the blastema cells in a positionally labile state, thus indicating a role for reprogramming cues in the blastema microenvironment.

  10. Self-Referential Information Alleviates Retrieval Inhibition of Directed Forgetting Effects—An ERP Evidence of Source Memory

    Directory of Open Access Journals (Sweden)

    Xinrui Mao

    2017-10-01

    Full Text Available Directed forgetting (DF assists in preventing outdated information from interfering with cognitive processing. Previous studies pointed that self-referential items alleviated DF effects due to the elaboration of encoding processes. However, the retrieval mechanism of this phenomenon remains unknown. Based on the dual-process framework of recognition, the retrieval of self-referential information was involved in familiarity and recollection. Using source memory tasks combined with event-related potential (ERP recording, our research investigated the retrieval processes of alleviative DF effects elicited by self-referential information. The FN400 (frontal negativity at 400 ms is a frontal potential at 300–500 ms related to familiarity and the late positive complex (LPC is a later parietal potential at 500–800 ms related to recollection. The FN400 effects of source memory suggested that familiarity processes were promoted by self-referential effects without the modulation of to-be-forgotten (TBF instruction. The ERP results of DF effects were involved with LPCs of source memory, which indexed retrieval processing of recollection. The other-referential source memory of TBF instruction caused the absence of LPC effects, while the self-referential source memory of TBF instruction still elicited the significant LPC effects. Therefore, our neural findings suggested that self-referential processing improved both familiarity and recollection. Furthermore, the self-referential processing advantage which was caused by the autobiographical retrieval alleviated retrieval inhibition of DF, supporting that the self-referential source memory alleviated DF effects.

  11. All-Source Information Acquisition and Analysis in the IAEA Department of Safeguards

    International Nuclear Information System (INIS)

    Ferguson, Matthew; Norman, Claude

    2010-01-01

    All source information analysis enables proactive implementation of in-field verification activities, supports the State Evaluation process, and is essential to the IAEA's strengthened safeguards system. Information sources include State-declared nuclear material accounting and facility design information; voluntarily supplied information such as nuclear procurement data; commercial satellite imagery; open source information and information/results from design information verifications (DIVs), inspections and complementary accesses (CAs). The analysis of disparate information sources directly supports inspections, design information verifications and complementary access, and enables both more reliable cross-examination for consistency and completeness as well as in-depth investigation of possible safeguards compliance issues. Comparison of State-declared information against information on illicit nuclear procurement networks, possible trafficking in nuclear materials, and scientific and technical information on nuclear-related research and development programmes, provides complementary measures for monitoring nuclear developments and increases Agency capabilities to detect possible undeclared nuclear activities. Likewise, expert analysis of commercial satellite imagery plays a critical role for monitoring un-safeguarded sites and facilities. In sum, the combination of these measures provides early identification of possible undeclared nuclear material or activities, thus enhancing deterrence of safeguards system that is fully information driven, and increasing confidence in Safeguards conclusions. By increasing confidence that nuclear materials and technologies in States under Safeguards are used solely for peaceful purposes, information-driven safeguards will strengthen the nuclear non-proliferation system. Key assets for Agency collection, processing, expert analysis, and integration of these information sources are the Information Collection and Analysis

  12. Incongruence between Verbal and Non-Verbal Information Enhances the Late Positive Potential.

    Science.gov (United States)

    Morioka, Shu; Osumi, Michihiro; Shiotani, Mayu; Nobusako, Satoshi; Maeoka, Hiroshi; Okada, Yohei; Hiyamizu, Makoto; Matsuo, Atsushi

    2016-01-01

    Smooth social communication consists of both verbal and non-verbal information. However, when presented with incongruence between verbal information and nonverbal information, the relationship between an individual judging trustworthiness in those who present the verbal-nonverbal incongruence and the brain activities observed during judgment for trustworthiness are not clear. In the present study, we attempted to identify the impact of incongruencies between verbal information and facial expression on the value of trustworthiness and brain activity using event-related potentials (ERP). Combinations of verbal information [positive/negative] and facial expressions [smile/angry] expressions were presented randomly on a computer screen to 17 healthy volunteers. The value of trustworthiness of the presented facial expression was evaluated by the amount of donation offered by the observer to the person depicted on the computer screen. In addition, the time required to judge the value of trustworthiness was recorded for each trial. Using electroencephalography, ERP were obtained by averaging the wave patterns recorded while the participants judged the value of trustworthiness. The amount of donation offered was significantly lower when the verbal information and facial expression were incongruent, particularly for [negative × smile]. The amplitude of the early posterior negativity (EPN) at the temporal lobe showed no significant difference between all conditions. However, the amplitude of the late positive potential (LPP) at the parietal electrodes for the incongruent condition [negative × smile] was higher than that for the congruent condition [positive × smile]. These results suggest that the LPP amplitude observed from the parietal cortex is involved in the processing of incongruence between verbal information and facial expression.

  13. Comparing the effects of positive and negative feedback in information-integration category learning.

    Science.gov (United States)

    Freedberg, Michael; Glass, Brian; Filoteo, J Vincent; Hazeltine, Eliot; Maddox, W Todd

    2017-01-01

    Categorical learning is dependent on feedback. Here, we compare how positive and negative feedback affect information-integration (II) category learning. Ashby and O'Brien (2007) demonstrated that both positive and negative feedback are required to solve II category problems when feedback was not guaranteed on each trial, and reported no differences between positive-only and negative-only feedback in terms of their effectiveness. We followed up on these findings and conducted 3 experiments in which participants completed 2,400 II categorization trials across three days under 1 of 3 conditions: positive feedback only (PFB), negative feedback only (NFB), or both types of feedback (CP; control partial). An adaptive algorithm controlled the amount of feedback given to each group so that feedback was nearly equated. Using different feedback control procedures, Experiments 1 and 2 demonstrated that participants in the NFB and CP group were able to engage II learning strategies, whereas the PFB group was not. Additionally, the NFB group was able to achieve significantly higher accuracy than the PFB group by Day 3. Experiment 3 revealed that these differences remained even when we equated the information received on feedback trials. Thus, negative feedback appears significantly more effective for learning II category structures. This suggests that the human implicit learning system may be capable of learning in the absence of positive feedback.

  14. Negative evaluation bias for positive self-referential information in borderline personality disorder.

    Directory of Open Access Journals (Sweden)

    Dorina Winter

    Full Text Available Previous research has suggested that patients meeting criteria for borderline personality disorder (BPD display altered self-related information processing. However, experimental studies on dysfunctional self-referential information processing in BPD are rare. In this study, BPD patients (N = 30 and healthy control participants (N = 30 judged positive, neutral, and negative words in terms of emotional valence. Referential processing was manipulated by a preceding self-referential pronoun, an other-referential pronoun, or no referential context. Subsequently, patients and participants completed a free recall and recognition task. BPD patients judged positive and neutral words as more negative than healthy control participants when the words had self-reference or no reference. In BPD patients, these biases were significantly correlated with self-reported attributional style, particularly for negative events, but unrelated to measures of depressive mood. However, BPD patients did not differ from healthy control participants in a subsequent free recall task and a recognition task. Our findings point to a negative evaluation bias for positive, self-referential information in BPD. This bias did not affect the storage of information in memory, but may be related to self-attributions of negative events in everyday life in BPD.

  15. Information needs and barriers to information sources by open and distance learners: A case of Mzuzu University, Malawi

    Directory of Open Access Journals (Sweden)

    Winner D. Chawinga

    2016-06-01

    Full Text Available Background: The Centre for Open and Distance Learning at Mzuzu University was established in 2006 with the aim to increase and broaden access to higher education to most Malawians who despite meeting entry requirements into higher education were not selected because of shortage of space on campus and other learning and teaching resources. Although Open and Distance Learning (ODL is hyped as a practical option for making higher education available to many people as widely reported in the literature, universities need to address several issues for it to hold its ground. Objectives: The study set out to investigate information needs and barriers to information sources by ODL students by addressing three objectives, namely information needs of ODL students, information sources of ODL students and challenges that ODL students face when seeking information for their courses of study. Method: A survey questionnaire with a mix of closed-ended and open-ended questions was distributed to 350 students to find out the information sources and challenges that the ODL students face when searching for information to accomplish their academic activities. Results: According to the findings, all 258 (100% students who answered the questionnaire need information to prepare for the end-of-semester examinations. Information sources that are used most by students include lecture notes, Internet and library books with scores of 238 (92.6%, 207 (80.5% and 199 (77.4%, respectively. Conclusion: ODL students have limited access to information materials for accomplishing their academic activities and Mzuzu University can resolve this challenge by introducing satellite information centres in the three geographical regions of Malawi.

  16. SU-F-T-24: Impact of Source Position and Dose Distribution Due to Curvature of HDR Transfer Tubes

    Energy Technology Data Exchange (ETDEWEB)

    Khan, A; Yue, N [Rutgers University, New Brunswick, NJ (United States)

    2016-06-15

    Purpose: Brachytherapy is a highly targeted from of radiotherapy. While this may lead to ideal dose distributions on the treatment planning system, a small error in source location can lead to change in the dose distribution. The purpose of this study is to quantify the impact on source position error due to curvature of the transfer tubes and the impact this may have on the dose distribution. Methods: Since the source travels along the midline of the tube, an estimate of the positioning error for various angles of curvature was determined using geometric properties of the tube. Based on the range of values a specific shift was chosen to alter the treatment plans for a number of cervical cancer patients who had undergone HDR brachytherapy boost using tandem and ovoids. Impact of dose to target and organs at risk were determined and checked against guidelines outlined by radiation oncologist. Results: The estimate of the positioning error was 2mm short of the expected position (the curved tube can only cause the source to not reach as far as with a flat tube). Quantitative impact on the dose distribution is still in the process of being analyzed. Conclusion: The accepted positioning tolerance for the source position of a HDR brachytherapy unit is plus or minus 1mm. If there is an additional 2mm discrepancy due to tube curvature, this can result in a source being 1mm to 3mm short of the expected location. While we do always attempt to keep the tubes straight, in some cases such as with tandem and ovoids, the tandem connector does not extend as far out from the patient so the ovoid tubes always contain some degree of curvature. The dose impact of this may be significant.

  17. Needs, demands and motivation in the use of sources of information

    Energy Technology Data Exchange (ETDEWEB)

    Lancaster, F W [Illinois Univ., Urbana, IL (United States). Graduate School of Library and Information Science

    1990-05-01

    For designers and managers of information services it is important to have some understanding of the factors that influence the probability that an information need will arise in the mind of some individual, that this individual will be sufficiently motivated to seek the needed information, and that he or she will select a particular information source. While our knowledge of these matters is still very far from complete, the many hundreds of ``user studies`` that have been performed have at least shed some light on them. Factors affecting the selection of a particular information source (e.g., information center or library) will include some user factors (e.g., previous experience with a source) and many source-related factors, including currency, cost, accessibility, reputation, dissemination and marketing efforts, and the format and content of the information available. Accessibility will be a major factor influencing use of an information source but this goes far beyond physical accessibility; intellectual and psychological accessibility must also be considered. This paper combines these various factors into a ``model`` of information-seeking behaviour and from this attempts to draw conclusions that may be useful in the design of future information services. 61 refs, 1 fig.

  18. Needs, demands and motivation in the use of sources of information

    International Nuclear Information System (INIS)

    Lancaster, F.W.

    1990-05-01

    For designers and managers of information services it is important to have some understanding of the factors that influence the probability that an information need will arise in the mind of some individual, that this individual will be sufficiently motivated to seek the needed information, and that he or she will select a particular information source. While our knowledge of these matters is still very far from complete, the many hundreds of ''user studies'' that have been performed have at least shed some light on them. Factors affecting the selection of a particular information source (e.g., information center or library) will include some user factors (e.g., previous experience with a source) and many source-related factors, including currency, cost, accessibility, reputation, dissemination and marketing efforts, and the format and content of the information available. Accessibility will be a major factor influencing use of an information source but this goes far beyond physical accessibility; intellectual and psychological accessibility must also be considered. This paper combines these various factors into a ''model'' of information-seeking behaviour and from this attempts to draw conclusions that may be useful in the design of future information services. 61 refs, 1 fig

  19. "Just Google It"--The Scope of Freely Available Information Sources for Doctoral Thesis Writing

    Science.gov (United States)

    Grigas, Vincas; Juzeniene, Simona; Velickaite, Jone

    2017-01-01

    Introduction: Recent developments in the field of scientific information resource provision lead us to the key research question, namely,what is the coverage of freely available information sources when writing doctoral theses, and whether the academic library can assume the leading role as a direct intermediator for information users. Method:…

  20. The Internet as a Source of Academic Research Information: Findings of Two Pilot Studies.

    Science.gov (United States)

    Kibirige, Harry M.; DePalo, Lisa

    2000-01-01

    Discussion of information available on the Internet focuses on two pilot studies that investigated how academic users perceive search engines and subject-oriented databases as sources of topical information. Highlights include information seeking behavior of academic users; undergraduate users; graduate users; faculty; and implications for…

  1. Sources of Information on Sex and Antecedents of Early Sexual Initiation among Urban Latino Youth

    Science.gov (United States)

    Fuxman, Shai; De Los Santos, Sabrina; Finkelstein, Daniel; Landon, Mary Kay; O'Donnell, Lydia

    2015-01-01

    The study examined the relationship between young adolescents' sources of information on sex and precursors to sexual activity. Surveys were conducted with 3,940 Latino sixth grade students. According to results, girls who received information from their parents were less likely to engage in sex precursors. For boys, getting information from other…

  2. Assessment of source of information for polio supplementary immunization activities in 2014 and 2015, Somali, Ethiopia.

    Science.gov (United States)

    Bedada, Selamawit Yilma; Gallagher, Kathleen; Aregay, Aron Kassahun; Mohammed, Bashir; Maalin, Mohammed Adem; Hassen, Hassen Abdisemed; Ali, Yusuf Mohammed; Braka, Fiona; Kilebou, Pierre M'pele

    2017-01-01

    Communication is key for the successful implementation of polio vaccination campaigns. The purpose of this study is to review and analyse the sources of information utilized by caregivers during polio supplementary immunization activities (SIAs) in Somali, Ethiopia in 2014 and 2015. Data on sources of information about the polio campaign were collected post campaign from caregivers by trained data collectors as part of house to house independent monitoring. The sources of information analysed in this paper include town criers (via megaphones), health workers, religious leaders, kebele leaders (Kebele is the lowest administrative structure in Ethiopia), radio, television, text message and others. The repetition of these sources of information was analysed across years and zones for trends. Polio vaccination campaign coverage was also reviewed by year and zones within the Somali region in parallel with the major sources of information used in the respective year and zones. 57,745 responses were used for this analysis but the responses were received from polio SIAs. Zonal trends in using town criers as a major source of information in both study years remained consistent except in two zones. 87.5% of zones that reported at least 90% coverage during both study years had utilized town criers as a major source of information while the rest (12.5%) used health workers. We found that town criers were consistently the major source of information about the polio campaigns for Somali region parents and caregivers during polio immunization days held in 2014 and 2015. Health workers and kebele leaders were also important sources of information about the polio campaign for parents.

  3. Detecting Position Using ARKit II: Generating Position-Time Graphs in Realtime and Further Information on Limitations of ARKit

    Science.gov (United States)

    Dilek, Ufuk; Erol, Mustafa

    2018-01-01

    ARKit is a framework which allows developers to create augmented reality apps for the iPhone and iPad. In a previous study, we had shown that it could be used to detect position in educational physics experiments and emphasized that the ability to provide position data in real-time was one of the prominent features of this newly emerging…

  4. SU-E-T-459: Impact of Source Position and Traveling Time On HDR Skin Surface Applicator Dosimetry

    International Nuclear Information System (INIS)

    Jeong, J; Barker, C; Zaider, M; Cohen, G

    2015-01-01

    Purpose: Observed dosimetric discrepancy between measured and treatment planning system (TPS) predicted values, during applicator commissioning, were traced to source position uncertainty in the applicator. We quantify the dosimetric impact of this geometric uncertainty, and of the source traveling time inside the applicator, and propose corrections for clinical use. Methods: We measured the dose profiles from the Varian Leipzig-style (horizontal) HDR skin applicator, using EBT3 film, photon diode, and optically stimulated luminescence dosimeter (OSLD) and three different GammaMed HDR afterloders. The dose profiles and depth dose of each aperture were measured at several depths (up to about 10 mm, depending on the dosimeter). The measured dose profiles were compared with Acuros calculated profiles in BrachyVision TPS. For the impact of the source position, EBT3 film measurements were performed with applicator, facing-down and facing-up orientations. The dose with and without source traveling was measured with diode detector using HDR timer and electrometer timer, respectively. Results: Depth doses measured using the three dosimeters were in good agreement, but were consistently higher than the Acuros dose calculations. Measurements with the applicator facing-up were significantly lower than those in the facing-down position with maximum difference of about 18% at the surface, due to source sag inside the applicator. Based on the inverse-square law, the effective source sag was evaluated to be about 0.5 mm from the planned position. The additional dose from the source traveling was about 2.8% for 30 seconds with 10 Ci source, decreasing with increased dwelling time and decreased source activity. Conclusion: Due to the short source-to-surface distance of the applicator, the small source sag inside the applicator has significant dosimetric impact, which should be considered before the clinical use of the applicator. Investigation of the effect for other applicators

  5. Informing the Implementation of School-Wide Positive Behaviour Support in Singapore Preschools

    OpenAIRE

    LILY HUI SING LAU

    2017-01-01

    This thesis sought to inform the implementation of School-Wide Positive Behaviour Support (SWPBS) in Singapore preschools. Findings indicated that SWPBS implementation is likely to be perceived as needed by teachers, and that there is a need to focus on training teachers in SWPBS primary tier classroom management practices when SWPBS is implemented. Additionally, the Classroom Check-Up consultation model was shown to be a promising coaching model to be included in SWPBS training. A major cont...

  6. From 'precarious informal employment' to 'protected employment': The 'positive transitioning effect' of trade unions

    OpenAIRE

    Serrano, Melisa R.; Xhafa, Edlira

    2016-01-01

    This paper aims at contributing to the discussions on the challenge of transitioning from precarious informal employment to more protected employment. This paper looks into a rather under-researched area - the role of trade unions in facilitating this process of 'transitioning' as well as in containing the spread of this type of employment. We refer to this process, along with its outcomes, as the 'positive transitioning effect' of trade unions. Through 10 case studies from nine countries (Br...

  7. Positive Affect as a Source of Resilience for Women in Chronic Pain

    OpenAIRE

    Zautra, Alez J.; Johnson, Lisa M.; Davis, Mary C.

    2005-01-01

    A sample of 124 women with osteoarthritis (OA) and/or fibromyalgia (FMS) completed initial assessments for demographic data, health status, and personality traits and 10 to 12 weekly interviews regarding pain, stress, negative affect, and positive affect. Multilevel modeling analyses indicated that weekly elevations of pain and stress predicted increases in negative affect. Both higher weekly positive affect as well as greater positive affect on average resulted in lower negative affect both ...

  8. Scientific and technical information as a source for IAEA safeguards state evaluation

    Energy Technology Data Exchange (ETDEWEB)

    Barletta, M.; Feldman, Y.; Ferguson, M. [International Atomic Energy Agency, Vienna (Austria)

    2014-07-01

    The IAEA Department of Safeguards is continually working to refine its methodologies and procedures for the analysis of information relevant to the evaluation of the nuclear fuel cycle in States that have safeguards agreements with the IAEA. This analysis is required to achieve an understanding of States' nuclear-related activities against which a State's declarations are evaluated for correctness as well as completeness, and to provide credible assurances on the peaceful uses of nuclear material in the State. To achieve this end, diversification of sources and comparison for consistency among available information is essential to ensure an accurate assessment of a State's nuclear activities. Open sources of information on scientific and technical (S&T) developments and research provide the Department of Safeguards with an enhanced basis to evaluate the technical capabilities of States. These information sources are regularly and systematically assessed to provide information about industrial capabilities, patenting activities and research and development activities in States as reflected through published scientific and technical literature. Using such sources, in addition to other, long-established safeguards information sources, helps the IAEA to draw soundly-based safeguards conclusions. The utility of this category of information in terms of the State evaluation process lies primarily in the comparison with other sources of information, especially State-declared information, and in the assessment of consistency of all safeguards-relevant information regarding nuclear fuel cycle technologies and activities in a State. The current paper aims to describe the use of S&T literature, how information from different sources is consolidated, how it is analysed and how it contributes in the overall process of State evaluation in the IAEA Department of Safeguards. (author)

  9. The effect of low versus high approach-motivated positive affect on memory for peripherally versus centrally presented information.

    Science.gov (United States)

    Gable, Philip A; Harmon-Jones, Eddie

    2010-08-01

    Emotions influence attention and processes involved in memory. Although some research has suggested that positive affect categorically influences these processes differently than neutral affect, recent research suggests that motivational intensity of positive affective states influences these processes. The present experiments examined memory for centrally or peripherally presented information after the evocation of approach-motivated positive affect. Experiment 1 found that, relative to neutral conditions, pregoal, approach-motivated positive affect (caused by a monetary incentives task) enhanced memory for centrally presented information, whereas postgoal, low approach-motivated positive affect enhanced memory for peripherally presented information. Experiment 2 found that, relative to a neutral condition, high approach-motivated positive affect (caused by appetitive pictures) enhanced memory for centrally presented information but hindered memory for peripheral information. These results suggest a more complex relationship between positive affect and memory processes and highlight the importance of considering the motivational intensity of positive affects in cognitive processes. Copyright 2010 APA

  10. [Inaccurate information about the size of the penis in the Democratic Republic of the Congo: about 21 information sources].

    Science.gov (United States)

    Mulenga, Philippe Cilundika; Kazadi, Alex Bukasa

    2016-01-01

    Penis size is a huge topic of anxiety for a lot of men. Some of them are unhappy with their penis size as shown in the study conducted by Tiggemann in 2008. There are relatively few studies on erect penis size. This may reflect cultural taboos of researchers or doctors interacting with men who are in a state of sexual arousal. On the other hand, it is important for people who announce details on penis size to give the average penis size first and then sizes suggested by the researchers. We performed a cross-sectional survey in the two major urban centres of the Democratic Republic of Congo namely Kinshasa and Lubumbashi over a period of two years from May 2014 to May 2016. A total of 21 information sources constituted our sample, 8 in Kinshasa and 13 in Lubumbashi. We found it sufficient because in our culture discussing about sexual matter is rare. The parameters studied were: the nature of the source, the accuracy of the measurement method, the presence of bibliographical reference, the announced penis size. The majority of information sources used were radio or television broadcastings (23,8%); this can be explained by the fact that there are an increasing number of radio and television stations in our country and especially in large cities. With regard to accuracy of information about penis measurement method when sharing the message about penis size, our study showed that the majority of information sources did not indicate it when they announced penis size to the public (85,7%). Several sources did not report bibliographical references (57,1%). Announced data analysis on penis size showed that the average penis size was: 14 cm (28,6%), 15 cm (23,8%) and 15-20 cm (19%). All these results are intended to offer a warning to all players responsible for diffusing information on sexual health (penis size): scientific rigor consists in seeking information from reliable sources.

  11. Calibration of an advanced photon source linac beam position monitor used for positron position measurement of a beam containing both positrons and electrons

    International Nuclear Information System (INIS)

    Sereno, Nicholas S.

    1998-01-01

    The Advanced Photon Source (APS) linac beam position monitors can be used to monitor the position of a beam containing both positrons and electrons. To accomplish this task, both the signal at the bunching frequency of 2856 MHz and the signal at 2x2856 MHz are acquired and processed for each stripline. The positron beam position is obtained by forming a linear combination of both 2856 and 5712 MHz signals for each stripline and then performing the standard difference over sum computation. The required linear combination of the 2856 and 5712 MHz signals depends on the electrical calibration of each stripline/cable combination. In this paper, the calibration constants for both 2856 MHz and 5712 MHz signals for each stripline are determined using a pure beam of electrons. The calibration constants are obtained by measuring the 2856 and 5712 MHz stripline signals at various electron beam currents and positions. Finally, the calibration constants measured using electrons are used to determine positron beam position for the mixed beam case

  12. Reflections on the role of open source in health information system interoperability.

    Science.gov (United States)

    Sfakianakis, S; Chronaki, C E; Chiarugi, F; Conforti, F; Katehakis, D G

    2007-01-01

    This paper reflects on the role of open source in health information system interoperability. Open source is a driving force in computer science research and the development of information systems. It facilitates the sharing of information and ideas, enables evolutionary development and open collaborative testing of code, and broadens the adoption of interoperability standards. In health care, information systems have been developed largely ad hoc following proprietary specifications and customized design. However, the wide deployment of integrated services such as Electronic Health Records (EHRs) over regional health information networks (RHINs) relies on interoperability of the underlying information systems and medical devices. This reflection is built on the experiences of the PICNIC project that developed shared software infrastructure components in open source for RHINs and the OpenECG network that offers open source components to lower the implementation cost of interoperability standards such as SCP-ECG, in electrocardiography. Open source components implementing standards and a community providing feedback from real-world use are key enablers of health care information system interoperability. Investing in open source is investing in interoperability and a vital aspect of a long term strategy towards comprehensive health services and clinical research.

  13. Sources and types of information on self-care symptom management strategies for HIV and AIDS

    Directory of Open Access Journals (Sweden)

    Regis R. Marie Modeste

    2014-04-01

    Full Text Available Background: It has been reported that South Africa has the highest number of people living with HIV worldwide, with more women being infected than men. Women living with HIV have been documented as experiencing various symptoms related to HIV and use various strategies to manage these symptoms. Objective: The objective of this study was to explore the sources and types of information regarding self-care symptom management strategies received by women living with HIV. Method: The study was conducted at an HIV clinic in an urban area of KwaZulu-Natal. Individual in-depth interviews were completed with 11 women who were living with HIV,exploring the sources of information received on how they manage the HIV- (and/or AIDS- related symptoms they experienced as well as the types of information received. The collecteddata were analysed using qualitative content analysis. Results: The participants identified various sources, which mainly included groups of people who provided them with information on how to manage their HIV-related symptoms, namely healthcare providers, their personal networks and the community. The different sources offered different types of information, including the use of medication, complementary treatments and self-comforting activities. Conclusion: The study highlights that participants used multiple sources to get information about how to manage the experienced symptoms related to HIV, namely, healthcare providers, family and friends as well as themselves. It is to be noted that each source provided a preferred type of information.

  14. A new method to quantify the health risks from sources of perfluoroalkyl substances, combined with positive matrix factorization and risk assessment models.

    Science.gov (United States)

    Xu, Jiao; Shi, Guo-Liang; Guo, Chang-Sheng; Wang, Hai-Ting; Tian, Ying-Ze; Huangfu, Yan-Qi; Zhang, Yuan; Feng, Yin-Chang; Xu, Jian

    2018-01-01

    A hybrid model based on the positive matrix factorization (PMF) model and the health risk assessment model for assessing risks associated with sources of perfluoroalkyl substances (PFASs) in water was established and applied at Dianchi Lake to test its applicability. The new method contains 2 stages: 1) the sources of PFASs were apportioned by the PMF model and 2) the contribution of health risks from each source was calculated by the new hybrid model. Two factors were extracted by PMF, with factor 1 identified as aqueous fire-fighting foams source and factor 2 as fluoropolymer manufacturing and processing and perfluorooctanoic acid production source. The health risk of PFASs in the water assessed by the health risk assessment model was 9.54 × 10 -7  a -1 on average, showing no obvious adverse effects to human health. The 2 sources' risks estimated by the new hybrid model ranged from 2.95 × 10 -10 to 6.60 × 10 -6  a -1 and from 1.64 × 10 -7 to 1.62 × 10 -6  a -1 , respectively. The new hybrid model can provide useful information on the health risks of PFAS sources, which is helpful for pollution control and environmental management. Environ Toxicol Chem 2018;37:107-115. © 2017 SETAC. © 2017 SETAC.

  15. Sources of information influencing the state-of-the-science gap in hormone replacement therapy usage.

    Directory of Open Access Journals (Sweden)

    Fiona Chew

    Full Text Available Medical reviews and research comprise a key information source for news media stories on medical therapies and innovations as well as for physicians in updating their practice. The present study examined medical review journal articles, physician surveys and news media coverage of hormone replacement therapy (HT to assess the relationship between the three information sources and whether/if they contributed to a state-of-the-science gap (a condition when the evaluation of a medical condition or therapy ascertained by the highest standards of investigation is incongruent with the science-in-practice such as physician recommendations and patient actions.We content-analyzed 177 randomly sampled HT medical reviews between 2002 and 2014, and HT news valence in three major TV networks, newspapers and magazines/internet sites in 2002-2003, 2008-2009 and 2012-14. The focus in both analyses was whether HT benefits outweighed risks, risks outweighed benefits or both risks and benefits were presented. We also qualitatively content-analyzed all 19 surveys of US physicians' HT recommendations from 2002 to 2009, and 2012 to 2014.Medical reviews yielded a mixed picture about HT (40.1% benefits, 26.0% risks, and 33.9% both benefits and risks. While a majority of physician surveys were pro-HT 10/19, eight showed varied attitudes and one was negative. Newspaper and television coverage reflected a pro and con balance while magazine stories were more positive in the later reporting period.Medical journal review articles, physicians, and media reports all provide varying view points towards hormone therapy use thus leading to limited knowledge about the actual risks and benefits of HT among peri- and menopausal women and a state-of-the-science gap.

  16. Signal information available for plume source tracking with and without surface waves and learning by undergraduates assisting with the research

    Science.gov (United States)

    Wiley, Megan Beth

    Autonomous vehicles have had limited success in locating point sources of pollutants, chemicals, and other passive scalars. However, animals such as stomatopods, a mantis shrimp, track odor plumes easily for food, mates, and habitat. Laboratory experiments using Planar Laser Induced Fluorescence measured odor concentration downstream of a diffusive source with and without live stomatopods to investigate their source-tracking strategies in unidirectional and "wave-affected" (surface waves with a mean current) flows. Despite the dearth of signal, extreme temporal variation, and meandering plume centerline, the stomatopods were able to locate the source, especially in the wave-affected flow. Differences in the two plumes far from the source (>160 cm) appeared to help the animals in the wave-affected flow position themselves closer to the source (fluid mechanics, and there was little evidence of learning by participation in the RAship. One RA's conceptions of turbulence did change, but a group workshop seemed to support this learning more than the RAship. The documented conceptions could aid in curriculum design, since situating new information within current knowledge seems to deepen learning outcomes. The RAs' conceptions varied widely with some overlap of ideas. The interviews also showed that most RAs did not discuss molecular diffusion as part of the mixing process and some remembered information from course demonstrations, but applied them inappropriately to the interview questions.

  17. Lessons from Ebola: Sources of Outbreak Information and the Associated Impact on UC Irvine and Ohio University College Students.

    Science.gov (United States)

    Koralek, Thrissia; Runnerstrom, Miryha G; Brown, Brandon J; Uchegbu, Chukwuemeka; Basta, Tania B

    2016-08-25

    Objectives. We examined the role of outbreak information sources through four domains: knowledge, attitudes, beliefs, and stigma related to the 2014 Ebola virus disease (EVD) outbreak. Methods. We conducted an online survey of 797 undergraduates at the University of California, Irvine (UCI) and Ohio University (OU) during the peak of the outbreak. We calculated individual scores for domains and analyzed associations to demographic variables and news sources. Results. Knowledge of EVD was low and misinformation was prevalent. News media (34%) and social media (19%) were the most used sources of EVD information while official government websites (OGW) were among the least used (11%). Students who acquired information through OGW had higher knowledge, more positive attitudes towards those infected, a higher belief in the government, and were less likely to stigmatize Ebola victims. Conclusions. Information sources are likely to influence students' knowledge, attitudes, beliefs, and stigma relating to EVD. This study contains crucial insight for those tasked with risk communication to college students. Emphasis should be given to developing effective strategies to achieve a comprehensive knowledge of EVD and future public health threats.

  18. Airports at Risk: The Impact of Information Sources on Security Decisions

    OpenAIRE

    Kirschenbaum, Avi; Mariani, Michele; Van Gulijk, Coen; Rapaport, Carmit; Lubasz, Sharon

    2012-01-01

    Security decisions in high risk organizations such as airports involve obtaining ongoing and frequent information about potential threats. Utilizing questionnaire survey data from a sample of airport\\ud employees in European Airports across the continent, we analyzed \\ud how both formal and informal sources of security information affect employee's decisions to comply with the security rules and\\ud directives. This led us to trace information network flows to assess its impact on the degree e...

  19. Propagation characteristics of audible noise generated by single corona source under positive DC voltage

    Directory of Open Access Journals (Sweden)

    Xuebao Li

    2017-10-01

    Full Text Available The directivity and lateral profile of corona-generated audible noise (AN from a single corona source are measured through experiments carried out in the semi-anechoic laboratory. The experimental results show that the waveform of corona-generated AN consists of a series of random sound pressure pulses whose pulse amplitudes decrease with the increase of measurement distance. A single corona source can be regarded as a non-directional AN source, and the A-weighted SPL (sound pressure level decreases 6 dB(A as doubling the measurement distance. Then, qualitative explanations for the rationality of treating the single corona source as a point source are given on the basis of the Ingard’s theory for sound generation in corona discharge. Furthermore, we take into consideration of the ground reflection and the air attenuation to reconstruct the propagation features of AN from the single corona source. The calculated results agree with the measurement well, which validates the propagation model. Finally, the influence of the ground reflection on the SPL is presented in the paper.

  20. Integration of Heterogeneous Information Sources into a Knowledge Resource Management System for Lifelong Learning

    NARCIS (Netherlands)

    Demidova, Elena; Ternier, Stefaan; Olmedilla, Daniel; Duval, Erik; Dicerto, Michele; Stefanov, Krassen; Sacristán, Naiara

    2007-01-01

    Demidova, E., Ternier, S., Olmedilla, D., Duval, E., Dicerto, M., Stefanov, K., et al. (2007). Integration of Heterogeneous Information Sources into a Knowledge Resource Management System for Lifelong. TENCompetence Workshop on Service Oriented Approaches and Lifelong Competence Development

  1. Sources of pre-admission medication information: observational study of accuracy and availability.

    LENUS (Irish Health Repository)

    Fitzsimons, Michelle

    2011-12-01

    To identify the accessibility of sources of pre-admission medication (PAM) information, to quantify agreement between the PAM list and the \\'gold-standard\\' PAM list (GS-PAML) and to categorise disagreements.

  2. Using Medical Dictionaries to Teach the Critical Evaluation of Information Sources.

    Science.gov (United States)

    Duff, Alistair S.

    1995-01-01

    A course-integrated bibliographic instruction session was designed to develop skills in evaluating biomedical information sources. Students in small groups evaluated and ranked medical and nursing dictionaries and defended ratings to the class. (SK)

  3. Virtual shelves in a digital library: a framework for access to networked information sources.

    Science.gov (United States)

    Patrick, T B; Springer, G K; Mitchell, J A; Sievert, M E

    1995-01-01

    Develop a framework for collections-based access to networked information sources that addresses the problem of location-dependent access to information sources. This framework uses a metaphor of a virtual shelf. A virtual shelf is a general-purpose server that is dedicated to a particular information subject class. The identifier of one of these servers identifies its subject class. Location-independent call numbers are assigned to information sources. Call numbers are based on standard vocabulary codes. The call numbers are first mapped to the location-independent identifiers of virtual shelves. When access to an information resource is required, a location directory provides a second mapping of these location-independent server identifiers to actual network locations. The framework has been implemented in two different systems. One system is based on the Open System Foundation/Distributed Computing Environment and the other is based on the World Wide Web. This framework applies in new ways traditional methods of library classification and cataloging. It is compatible with two traditional styles of selecting information searching and browsing. Traditional methods may be combined with new paradigms of information searching that will be able to take advantage of the special properties of digital information. Cooperation between the library-informational science community and the informatics community can provide a means for a continuing application of the knowledge and techniques of library science to the new problems of networked information sources.

  4. The Standardization Method of Address Information for POIs from Internet Based on Positional Relation

    Directory of Open Access Journals (Sweden)

    WANG Yong

    2016-05-01

    Full Text Available As points of interest (POIon the internet, exists widely incomplete addresses and inconsistent literal expressions, a fast standardization processing method of network POIs address information based on spatial constraints was proposed. Based on the model of the extensible address expression, first of all, address information of POI was segmented and extracted. Address elements are updated by means of matching with the address tree layer by layer. Then, by defining four types of positional relations, corresponding set are selected from standard POI library as candidate for enrichment and amendment of non-standard address. At last, the fast standardized processing of POI address information was achieved with the help of backtracking address elements with minimum granularity. Experiments in this paper proved that the standardization processing of an address can be realized by means of this method with higher accuracy in order to build the address database.

  5. Informal science participation positively affects the communication and pedagogical skills of university physics students

    Science.gov (United States)

    Hinko, Kathleen; Finkelstein, Noah

    2013-04-01

    Many undergraduate and graduate physics students choose to participate in an informal science program at the University of Colorado Boulder (Partnerships for Informal Science Education in the Community (PISEC)). They coach elementary and middle school students in inquiry-based physics activities during weekly, afterschool sessions. Observations from the afterschool sessions, field notes from the students, and pre/post surveys are collected. University students are also pre/post- videotaped explaining a textbook passage on a physics concept to an imagined audience for the Communications in Everyday Language assessment (CELA). We present findings from these data that indicate informal experiences improve the communication and pedagogical skills of the university student as well as positively influence their self-efficacy as scientific communicators and teachers.

  6. RFID-based information visibility for hospital operations: exploring its positive effects using discrete event simulation.

    Science.gov (United States)

    Asamoah, Daniel A; Sharda, Ramesh; Rude, Howard N; Doran, Derek

    2016-10-12

    Long queues and wait times often occur at hospitals and affect smooth delivery of health services. To improve hospital operations, prior studies have developed scheduling techniques to minimize patient wait times. However, these studies lack in demonstrating how such techniques respond to real-time information needs of hospitals and efficiently manage wait times. This article presents a multi-method study on the positive impact of providing real-time scheduling information to patients using the RFID technology. Using a simulation methodology, we present a generic scenario, which can be mapped to real-life situations, where patients can select the order of laboratory services. The study shows that information visibility offered by RFID technology results in decreased wait times and improves resource utilization. We also discuss the applicability of the results based on field interviews granted by hospital clinicians and administrators on the perceived barriers and benefits of an RFID system.

  7. Affective processing in positive schizotypy: Loose control of social-emotional information.

    Science.gov (United States)

    Papousek, Ilona; Weiss, Elisabeth M; Mosbacher, Jochen A; Reiser, Eva M; Schulter, Günter; Fink, Andreas

    2014-10-30

    Behavioral studies suggested heightened impact of emotionally laden perceptual input in schizophrenia spectrum disorders, in particular in patients with prominent positive symptoms. De-coupling of prefrontal and posterior cortices during stimulus processing, which is related to loosening of control of the prefrontal cortex over incoming affectively laden information, may underlie this abnormality. Pre-selected groups of individuals with low versus high positive schizotypy (lower and upper quartile of a large screening sample) were tested. During exposure to auditory displays of strong emotions (anger, sadness, cheerfulness), individuals with elevated levels of positive schizotypal symptoms showed lesser prefrontal-posterior coupling (EEG coherence) than their symptom-free counterparts (right hemisphere). This applied to negative emotions in particular and was most pronounced during confrontation with anger. The findings indicate a link between positive symptoms and a heightened impact particularly of threatening emotionally laden stimuli which might lead to exacerbation of positive symptoms and inappropriate behavior in interpersonal situations. Copyright © 2014 Elsevier Inc. All rights reserved.

  8. Health information needs of pregnant women: information sources, motives and barriers.

    Science.gov (United States)

    Kamali, Sudabeh; Ahmadian, Leila; Khajouei, Reza; Bahaadinbeigy, Kambiz

    2018-03-01

    Pregnant women should be provided with relevant and useful information to manage this specific period of their lives. Assessing information needs of this group is a prerequisite for providing this information. The aim of this study was to assess the information needs of pregnant women during their pregnancy and childbirth. This descriptive study was conducted on the pregnant women who attended antenatal clinics and obstetricians/gynaecologists' offices in Kerman, Iran, in 2015. Data were collected using a self-administered, valid and reliable questionnaire. A total of 400 women participated in the study. Most pregnant women needed information about care of the foetus (n = 344, 86%), physical and psychological complications after delivery (n = 333, 83%), development and growth of the foetus (n = 330, 82.5%), pregnancy nutrition (n = 327, 82%) and special tests during pregnancy (n = 326, 81.5%). They mostly (n = 195, 49%) looked for information when they were suffering from a disease or pregnancy complications. As pregnant women need extensive information to be able to take care of themselves and their babies, their information needs should be identified and taken into consideration when planning educational programmes for this group of women. © 2017 Health Libraries Group.

  9. Uses and Gratifications of Online Information Sources: Political Information Efficacy and the Effects of Interactivity

    Science.gov (United States)

    Painter, David Lynn

    2011-01-01

    There are two distinct purposes to this investigation: to develop the predictive power of the theory of political information efficacy and to determine how exposure to political information formats on the Internet under distinctly different interactive conditions affects cognitive and affective processes. Examined in the first section of this…

  10. Pangenesis as a source of new genetic information. The history of a now disproven theory.

    Science.gov (United States)

    Bergman, Gerald

    2006-01-01

    Evolution is based on natural selection of existing biological phenotypic traits. Natural selection can only eliminate traits. It cannot create new ones, requiring a theory to explain the origin of new genetic information. The theory of pangenesis was a major attempt to explain the source of new genetic information required to produce phenotypic variety. This theory, advocated by Darwin as the main source of genetic variety, has now been empirically disproved. It is currently a theory mainly of interest to science historians.

  11. Ranking sources of hospital quality information for orthopedic surgery patients: consequences for the system of managed competition.

    Science.gov (United States)

    Bes, Romy Evelien; van den Berg, Bernard

    2013-01-01

    Healthcare quality information is crucial for the system of managed competition. Within a system of managed competition, health insurers can selectively contract care providers and are allowed to channel patients towards contracted providers. The idea is that insurers have a stronger bargaining position compared to care providers when they are able to channel patients. In the Dutch system of managed competition that was implemented in 2006, channelling patients to preferred providers has not yet been very successful. Empirical knowledge of which sources of hospital quality information they find important may help us to understand how to channel patients to preferred providers. The objective of this survey was to measure how patients rank various sources of information when they compare hospital quality in a system of managed competition. A written survey was conducted among clients of a large Dutch health insurance company. These clients underwent orthopedic surgery on the hip or knee no longer than 12 months ago. Two major players within a system of managed competition-health insurers and the government-were not seen as important sources of hospital quality information. In contrast, own experience and general practitioners (GPs) were seen as the most important sources of hospital quality information within the Dutch system of managed competition. Health insurers should take the main finding-that GPs are the most important source of hospital quality information-into account when they contract care providers and develop strategies for channeling patients towards preferred providers. A well-functioning system of managed competition will benefit patients, as it involves incentives for care providers to increase healthcare quality and to produce at the lowest cost per unit of quality.

  12. How Sources of Sexual Information Relate to Adolescents' Beliefs about Sex

    Science.gov (United States)

    Bleakley, Amy; Hennessy, Michael; Fishbein, Martin; Jordan, Amy

    2009-01-01

    Objectives: To examine how sources of sexual information are associated with adolescents' behavioral, normative, and control beliefs about having sexual intercourse using the integrative model of behavior change. Methods: Survey data from a quota sample of 459 youth. Results: The most frequently reported sources were friends, teachers, mothers,…

  13. Medical Information Sources Used by Specialists and Residents in Mashhad, Iran

    NARCIS (Netherlands)

    Sarbaz, Masoumeh; Naderi, Hamid Reza; Aelami, Mohammad Hassan; Eslami, Saeid

    2016-01-01

    Background: Physicians continually need to update their knowledge to ensure appropriate decision making about patient care. Objectives: We aimed to identify and compare information sources used by specialists and residents, their reasons for choosing these sources, and the level of their confidence

  14. Build, Buy, Open Source, or Web 2.0?: Making an Informed Decision for Your Library

    Science.gov (United States)

    Fagan, Jody Condit; Keach, Jennifer A.

    2010-01-01

    When improving a web presence, today's libraries have a choice: using a free Web 2.0 application, opting for open source, buying a product, or building a web application. This article discusses how to make an informed decision for one's library. The authors stress that deciding whether to use a free Web 2.0 application, to choose open source, to…

  15. Theses in Canada: A Guide to Sources of Information about Theses Completed or in Preparation.

    Science.gov (United States)

    Bruchet, Susan Jaques, Comp.; Evans, Gwynneth, Comp.

    This bibliography provides a list of sources for students, scholars, and librarians who want information about theses completed or in preparation at Canadian universities. The sources are presented under three headings: general bibliographies, theses lists by university, and specialized bibliographies. For monographic items, the author, title, and…

  16. Review of power sources for Alaska DOT & PF road weather information systems (RWIS) : phase I.

    Science.gov (United States)

    2014-06-01

    This report documents the findings related to a review of power sources for six off-grid Road Weather Information Systems (RWIS) in : Alaska. Various power sources were reviewed as a means of reliably operating the off-grid RWIS sites throughout the ...

  17. Development of an asymmetric multiple-position neutron source (AMPNS) method to monitor the criticality of a degraded reactor core

    International Nuclear Information System (INIS)

    Kim, S.S.; Levine, S.H.

    1985-01-01

    An analytical/experimental method has been developed to monitor the subcritical reactivity and unfold the k/sub infinity/ distribution of a degraded reactor core. The method uses several fixed neutron detectors and a Cf-252 neutron source placed sequentially in multiple positions in the core. Therefore, it is called the Asymmetric Multiple Position Neutron Source (AMPNS) method. The AMPNS method employs nucleonic codes to analyze the neutron multiplication of a Cf-252 neutron source. An optimization program, GPM, is utilized to unfold the k/sub infinity/ distribution of the degraded core, in which the desired performance measure minimizes the error between the calculated and the measured count rates of the degraded reactor core. The analytical/experimental approach is validated by performing experiments using the Penn State Breazeale TRIGA Reactor (PSBR). A significant result of this study is that it provides a method to monitor the criticality of a damaged core during the recovery period

  18. National Information Centre for Marine Sciences (NICMAS) - An excellent source of information for aquaculturists

    Digital Repository Service at National Institute of Oceanography (India)

    Tapaswi, M.P.

    stream_size 4 stream_content_type text/plain stream_name Proc_Natl_Workshop_Aquacult_WeeK_1998_258.pdf.txt stream_source_info Proc_Natl_Workshop_Aquacult_WeeK_1998_258.pdf.txt Content-Encoding ISO-8859-1 Content-Type text...

  19. Information sources in biomedical science and medical journalism: methodological approaches and assessment.

    Science.gov (United States)

    Miranda, Giovanna F; Vercellesi, Luisa; Bruno, Flavia

    2004-09-01

    Throughout the world the public is showing increasing interest in medical and scientific subjects and journalists largely spread this information, with an important impact on knowledge and health. Clearly, therefore, the relationship between the journalist and his sources is delicate: freedom and independence of information depend on the independence and truthfulness of the sources. The new "precision journalism" holds that scientific methods should be applied to journalism, so authoritative sources are a common need for journalists and scientists. We therefore compared the individual classifications and methods of assessing of sources in biomedical science and medical journalism to try to extrapolate scientific methods of evaluation to journalism. In journalism and science terms used to classify sources of information show some similarities, but their meanings are different. In science primary and secondary classes of information, for instance, refer to the levels of processing, but in journalism to the official nature of the source itself. Scientists and journalists must both always consult as many sources as possible and check their authoritativeness, reliability, completeness, up-to-dateness and balance. In journalism, however, there are some important differences and limits: too many sources can sometimes diminish the quality of the information. The sources serve a first filter between the event and the journalist, who is not providing the reader with the fact, but with its projection. Journalists have time constraints and lack the objective criteria for searching, the specific background knowledge, and the expertise to fully assess sources. To assist in understanding the wealth of sources of information in journalism, we have prepared a checklist of items and questions. There are at least four fundamental points that a good journalist, like any scientist, should know: how to find the latest information (the sources), how to assess it (the quality and

  20. Oral health literacy and information sources among adults in Tehran, Iran.

    Science.gov (United States)

    Sistani, M M Naghibi; Yazdani, R; Virtanen, J; Pakdaman, A; Murtomaa, H

    2013-09-01

    To assess oral health literacy level and oral health information of Iranian adults in Tehran, and to determine the factors related to oral health literacy. A cross-sectional population study. A random sample of 1,031 adults in Tehran, Iran. Oral health literacy was measured using an oral health adult literacy questionnaire (OHL-AQ). Variation in use of information sources by socio-economic and demographic background was estimated by odds ratios. A multiple linear regression model served to determine predictor factors of OHL-AQ scores controlling for characteristics of the subjects and number of information sources. The mean OHL-AQ score was 10.5 (sd 3.0). Women (p information were dentists (52.6%), and TV/Radio (49.5%). According to the regression model, females (p = 0.001), high educational level (p information sources (two sources p = 0.01, three sources or more p = 0.002) were the main predictor factors of OHL-AQ scores. The average oral health literacy level of Iranian adults was low. Disseminating evidence-based oral health care information from multiple sources including TV/radio, dentists, and other health professionals in different settings should improve public oral health literacy.

  1. Open source information acquisition, analysis and integration in the IAEA Department of Safeguards

    Energy Technology Data Exchange (ETDEWEB)

    Barletta, M.; Zarimpas, N.; Zarucki, R., E-mail: M.Barletta@iaea.or [IAEA, Wagramerstrasse 5, P.O. Box 100, 1400 Vienna (Austria)

    2010-10-15

    Acquisition and analysis of open source information plays an increasingly important role in the IAEA strengthened safeguards system. The Agency's focal point for open source information collection and analysis is the Division of Safeguards Information Management (SGIM) within the IAEA Department of Safeguards. In parallel with the approval of the Model Additional Protocol in 1997, a new centre of information acquisition and analysis expertise was created within SGIM. By acquiring software, developing databases, retraining existing staff and hiring new staff with diverse analytical skills, SGIM is pro actively contributing to the future implementation of information-driven safeguards in collaboration with other Divisions within the Department of Safeguards. Open source information support is now fully integrated with core safeguards processes and activities, and has become an effective tool in the work of the Department of Safeguards. This provides and overview of progress realized through the acquisition and use of open source information in several thematic areas: evaluation of additional protocol declarations; support to the State Evaluation process; in-depth investigation of safeguards issues, including assisting inspections and complementary access; research on illicit nuclear procurement networks and trafficking; and monitoring nuclear developments. Demands for open source information have steadily grown and are likely to continue to grow in the future. Coupled with the enormous growth and accessibility in the volume and sources of information, new challenges are presented, both technical and analytical. This paper discusses actions taken and future plans for multi-source and multi-disciplinary analytic integration to strengthen confidence in safeguards conclusions - especially regarding the absence of undeclared nuclear materials and activities. (Author)

  2. Open source information acquisition, analysis and integration in the IAEA Department of Safeguards

    International Nuclear Information System (INIS)

    Barletta, M.; Zarimpas, N.; Zarucki, R.

    2010-10-01

    Acquisition and analysis of open source information plays an increasingly important role in the IAEA strengthened safeguards system. The Agency's focal point for open source information collection and analysis is the Division of Safeguards Information Management (SGIM) within the IAEA Department of Safeguards. In parallel with the approval of the Model Additional Protocol in 1997, a new centre of information acquisition and analysis expertise was created within SGIM. By acquiring software, developing databases, retraining existing staff and hiring new staff with diverse analytical skills, SGIM is pro actively contributing to the future implementation of information-driven safeguards in collaboration with other Divisions within the Department of Safeguards. Open source information support is now fully integrated with core safeguards processes and activities, and has become an effective tool in the work of the Department of Safeguards. This provides and overview of progress realized through the acquisition and use of open source information in several thematic areas: evaluation of additional protocol declarations; support to the State Evaluation process; in-depth investigation of safeguards issues, including assisting inspections and complementary access; research on illicit nuclear procurement networks and trafficking; and monitoring nuclear developments. Demands for open source information have steadily grown and are likely to continue to grow in the future. Coupled with the enormous growth and accessibility in the volume and sources of information, new challenges are presented, both technical and analytical. This paper discusses actions taken and future plans for multi-source and multi-disciplinary analytic integration to strengthen confidence in safeguards conclusions - especially regarding the absence of undeclared nuclear materials and activities. (Author)

  3. Increase of the positive ion source power in JT-60 NBI

    International Nuclear Information System (INIS)

    Kawai, Mikito; Akino, Noboru; Ebisawa, Noboru

    1998-09-01

    Neutral Beam Injection (NBI) heating experiment in JT-60 started in 1986, and the rated injection power of 20MW at 75keV with hydrogen was achieved after several month operation. In 1991, the ion sources and power supply had been upgraded for a higher beam energy up to 120keV with deuterium, following which the ion source operation re-started aiming for an injection power of 40MW at 110keV. In the operation, the beam acceleration voltage was tried to increase by modifying the ion source structure against the break-down which occurred frequently in the ion source. The beam acceleration was, however, unstable in a beam energy range of more than 105keV because of voltage-holding deterioration in the accelerator. Therefore we changed the strategy to increase the injection power: i.e. we tried to increase the beam current with keeping the beam energy. The structure of the source has been modified to be operated in a high current regime. As a result, the deuterium neutral beam injection of 40MW at 91-96keV was achieved in July 1996. (author)

  4. Advanced design of positive-ion sources for neutral-beam applications

    International Nuclear Information System (INIS)

    Marguerat, E.F.; Haselton, H.H.; Menon, M.M.; Schechter, D.E.; Stirling, W.L.; Tsai, C.C.

    1982-01-01

    The APIS ion source is being developed to meet a goal of producing ion beams of less than or equal to 200 keV, 100 A, with 10-30-s pulse lengths. In a continuing effort to advance the state of the art and to produce long pulse ion beams, APIS ion sources with grid dimensions of 10 x 25 cm, 13 x 43 cm, and 16 x 48 cm are being developed. In the past year, the 10- x 25-cm ion source has been operated to produce ion beams in excess of 100 keV for many seconds pulse length. An advanced design concept is being pursued with the primary objectives to improve radiation protection, reduce fabrication costs, and simplify maintenance. The source magnetic sheild will be designed as a vacuum enclosure to house all source components. The electrical insulation requirements of energy recovery are also considered. Because of the frequent maintenance requirements, the electron emitter assembly will be designed with a remote handling capability. A new accelerator design which incorporates the necessary neutron shielding and associated steering gimbal system is also described

  5. The Situation in the Sphere of Consortia and Licensing of Information Sources in the Czech Republic

    Directory of Open Access Journals (Sweden)

    Jindrich Pilar

    2001-07-01

    Full Text Available The primary reason for founding „consortia“ (open associations of information services in the Czech Republic seems to be the possibility of obtaining access to extensive and highly expensive information sources under more convenient conditions than if each of the participating institutions had to organise this access separately.Licensing the access to information sources within special purpose association of information services is a relatively recent innovation in the Czech republic practice. It has started at the end of the nineties (except for the CrossFire and Chemical Abstracts system users. Therefore, there has not been created any methodology of selecting „suitable“ members for forming a consortium nor for selection of partners, information source producers yet.

  6. Active beam position stabilization of pulsed lasers for long-distance ion profile diagnostics at the Spallation Neutron Source (SNS).

    Science.gov (United States)

    Hardin, Robert A; Liu, Yun; Long, Cary; Aleksandrov, Alexander; Blokland, Willem

    2011-02-14

    A high peak-power Q-switched laser has been used to monitor the ion beam profiles in the superconducting linac at the Spallation Neutron Source (SNS). The laser beam suffers from position drift due to movement, vibration, or thermal effects on the optical components in the 250-meter long laser beam transport line. We have designed, bench-tested, and implemented a beam position stabilization system by using an Ethernet CMOS camera, computer image processing and analysis, and a piezo-driven mirror platform. The system can respond at frequencies up to 30 Hz with a high position detection accuracy. With the beam stabilization system, we have achieved a laser beam pointing stability within a range of 2 μrad (horizontal) to 4 μrad (vertical), corresponding to beam drifts of only 0.5 mm × 1 mm at the furthest measurement station located 250 meters away from the light source.

  7. [Access to health information sources in Spain. how to combat "infoxication"].

    Science.gov (United States)

    Navas-Martin, Miguel Ángel; Albornos-Muñoz, Laura; Escandell-García, Cintia

    2012-01-01

    Internet has become a priceless source for finding health information for both patients and healthcare professionals. However, the universality and the abundance of information can lead to unfounded conclusions about health issues that can confuse further than clarify the health information. This aspect causes intoxication of information: infoxication. The question lies in knowing how to filter the information that is useful, accurate and relevant for our purposes. In this regard, integrative portals, such as the Biblioteca Virtual de Salud, compile information at different levels (international, national and regional), different types of resources (databases, repositories, bibliographic sources, etc.), becoming a starting point for obtaining quality information. Copyright © 2011 Elsevier España, S.L. All rights reserved.

  8. Approach Motivation as Incentive Salience: Perceptual Sources of Evidence in Relation to Positive Word Primes

    OpenAIRE

    Ode, Scott; Winters, Patricia L.; Robinson, Michael D.

    2011-01-01

    Four experiments (total N = 391) examined predictions derived from a biologically-based incentive salience theory of approach motivation. In all experiments, judgments indicative of enhanced perceptual salience were exaggerated in the context of positive, relative to neutral or negative, stimuli. In Experiments 1 and 2, positive words were judged to be of a larger size (Experiment 1) and led individuals to judge subsequently presented neutral objects as larger in size (Experiment 2). In Exper...

  9. Information sources and knowledge on vaccination in a population from southern Italy: The ESCULAPIO project.

    Science.gov (United States)

    Tabacchi, Garden; Costantino, Claudio; Cracchiolo, Manuela; Ferro, Antonio; Marchese, Valentina; Napoli, Giuseppe; Palmeri, Sara; Raia, Daniele; Restivo, Vincenzo; Siddu, Andrea; Vitale, Francesco; Casuccio, Alessandra

    2017-02-01

    Vaccine knowledge of the general population is shaped by different information sources and strongly influences vaccination attitudes and uptake. The CCM-Italian Ministry of Health ESCULAPIO project attempted to identify the role of such information sources, in order to address adequate strategies to improve information on vaccines and vaccine preventable diseases. In the present study, data on 632 adults from Southern Italy regarding information sources were collected, and their perceived and actual knowledge on vaccinations were compared and analyzed in relation to socio-demographic characteristics and information sources. The main reported reference sources were general practitioners (GPs) (42.5%) and pediatricians (33.1%), followed by mass media (24.1%) and the Internet (17.6%). A total of 45.4% reported they believed to be informed (45.4%), while those estimated to be truly informed were 43.8%. However, as showed in the multivariate logistic regression, people having the perception to be correctly informed ascribed their good knowledge to their profession in the health sector (Adj OR 2.28, CI 1.09-4.77, p informed population thought the responsibility had to be attributed to mass media (AdjOR 0.45, CI 0.22-0.92, p information, instead, were younger (AdjOR 1.64, CI 1.04-2.59, p information about vaccination should be addressed to fortifying healthcare workers knowledge in order to make them public health opinion leaders. General population should be provided with correct indications on trustworthy websites on vaccines to contrast false information supplied by anti-vaccinists on their own websites or social networks pages and on the mass media.

  10. Laypeoples' preferred sources of health information on the emergency management of tooth avulsion.

    Science.gov (United States)

    Al-Sane, Mona; Bourisly, Nibal; Almulla, Taghreed; Andersson, Lars

    2011-12-01

    When planning nationwide information campaigns on the emergency management of tooth avulsion, the populations' preference to different modes of information delivery should be taken into consideration. We currently lack information on that. The aim of this study was, therefore, to assess laypeoples' preferred sources of information on the emergency management of tooth avulsion. This was a joint study undertaken by experts in media and experts in dental traumatology. Interview-assisted questionnaires were conducted on a sample of 579 adults from Kuwait. Subjects were asked to choose their three preferred sources of information on the emergency management of tooth avulsion. Subjects' responses and sociodemographic data were registered. The data were descriptively analyzed, and a chi-square test was used to assess the relation of the subjects' preferences to their registered demographics. The Internet, health care professionals, and TV were the three most preferred sources of information on the emergency management of tooth avulsion across all groups, regardless of the sociodemographic characteristics. Younger adults, singles and subjects with higher education significantly preferred the Internet. Older adults preferred TV. Family was a preferred source in geographic districts populated with extended families, while friends were a preferred source in geographic districts populated by expatriates. Younger people and those with higher education can be effectively targeted through the Internet, while it is more effective to target older people through TV. Information, on tooth avulsion management, given by health care professionals is preferred across all population segments. © 2011 John Wiley & Sons A/S.

  11. Regulatory control of radiation sources and radioactive materials: The UK position

    International Nuclear Information System (INIS)

    Englefield, C.; Holyoak, B.; Ledgerwood, K.; Littlewood, K.

    2001-01-01

    The paper presents the organizations involved in the regulation of the safety of radiation sources and the security of radioactive materials across the UK. The safety of radiation sources is within the regulatory remit of the Health and Safety Executive, under the Health and safety of Work Act 1974 and associated regulations. Any employer using radiation sources has a statutory duty to comply with this legislation, thereby protecting workers and the public from undue risk. From a radioactive waste management perspective, the storage and use of radioactive materials and the accumulation and disposal of radioactive waste are regulated by the environment agencies of England and Wales, Scotland, and Northern Ireland, under the Radioactive Substances Act 1993. Special regulatory arrangements apply to nuclear sites, such as power stations and fuel cycle plants, and some additional bodies are involved in the regulation of the security of fissile materials. An explanation is given in the paper as to how these organizations to work together to provide a comprehensive and effective regulatory regime. An overview of how these regulators have recently started to work more closely with other enforcement bodies, such as the Police and Customs and Excise is also given, to illustrate the approach that is being applied in the UK to deal with orphan sources and illicit trafficking. (author)

  12. Sources of Strategic Information in Farm Management in Poland. Study Results

    Directory of Open Access Journals (Sweden)

    Jacek Jaworski

    2017-03-01

    Full Text Available Purposes: The main goal of the paper is to determine the signifcance of selected sources of strategic information, used by Polish farmers in decision making. In addition, an attempt was made to determine the factors impacting the evaluation of those sources among the traits of the farmer and his farm. Methodology: Data was gathered using the questionnaire method and analysed with standard tools of descriptive statistics. Findings: The farmers deemed personalised sources of strategic information the most important, especially agricultural advisers, input suppliers and buyers of agricultural products. From among institutional (non-personalised sources, local government and the chamber of agriculture were signifcant. Business information agencies and survey companies are the least important sources for farmers. The characteristics of the surroundings of the farm – specifcally, its geographic location and the size of settlement where it is located proved to have the widest impact on the evaluation of the sources included in the study. From among the organisational factors, only farm size has a signifcant impact. Research limitations/implications: The study was confned to a representative group of farmers in Poland. A closed list of sources of strategic information was used. Originality/value: The study results contribute to the knowledge on the functioning of Polish agriculture and may also be used in comparative studies, characterising this sector’s diversity within Europe. They can in turn contribute to properly focusing on supporting the policy of balanced agriculture development in the EU.

  13. The relative importance of information sources in consumers' choice of hospitals.

    Science.gov (United States)

    Gooding, S K

    1995-01-01

    The research presented focuses on an examination of the relative importance of word-of-mouth, expert opinion, external communication, and past experience in the context of hospital choice. Past research has examined the effect of each individually and various combinations of the four sources, but not all four simultaneously. Results of the present study suggest that past experience plays a greater role in hospital choice than other information sources, including expert opinion. The strength of word-of-mouth as a source of information is also verified. The implications of this research include the following: (1) health care researchers need to incorporate word-of-mouth when investigating informations sources, and (2) local hospitals need to be aware of "negative perceptions" and strive for consumer satisfaction. Health care delivery systems incorporating consumer-based choice render these findings especially valuable as researchers and practitioners address the challenges that these evolving systems will bring.

  14. Young Cypriots on Sex Education: Sources and Adequacy of Information Received on Sexuality Issues

    Science.gov (United States)

    Lesta, Stalo; Lazarus, Jeffrey V.; Essen, Birgitta

    2008-01-01

    Introduction: In the absence of standardised sex education and because schools usually limit their teaching to the "health" aspects of sexuality, young people in Cyprus rely on their peers and the media for information on sexuality. This study examines the sources and adequacy of the information received by young people from various…

  15. Rx for Consumer Health Information: The Magic is in the Right Source

    OpenAIRE

    Blue, Ana Rosa; Curry, Jane

    2010-01-01

    Health information is one of the most popular topics requested, in libraries, by the public. These handouts supported the session titled: "Rx for Consumer Health Information: The Magic is in the Right Source" presented at the 2010 BC Library Conference (theme: Seriously Entertaining: Learning through Fun and Games).

  16. Crossing heterogeneous information sources for better analysis of health and social care data

    NARCIS (Netherlands)

    Szirbik, NB; Pelletier, C; Chaussalet, TJ; Bos, L; Marsh, A

    2005-01-01

    In this paper we describe a methodology that emerged during an implementation of a health-and-social-care-oriented data repository, which consists in grouping information from heterogeneous and distributed information sources. We developed this methodology by first constructing a concrete data

  17. The role of similarity cues in the development of trustin sources of information about GM food

    NARCIS (Netherlands)

    Meijnders, Anneloes; Midden, Cees; Olofsson, Anna; Öhman, Susanna; Matthes, Jörg; Bondarenko, Olha; Gutteling, Jan; Rusanen, Maria

    In evaluating complex new technologies, people are usually dependent on information provided by others, for example, experts or journalists, and have to determine whether they can trust these information sources. This article focuses on similarity as the basis for trust. The first experiment (N =

  18. Approach Motivation as Incentive Salience: Perceptual Sources of Evidence in Relation to Positive Word Primes

    Science.gov (United States)

    Ode, Scott; Winters, Patricia L.; Robinson, Michael D.

    2012-01-01

    Four experiments (total N = 391) examined predictions derived from a biologically-based incentive salience theory of approach motivation. In all experiments, judgments indicative of enhanced perceptual salience were exaggerated in the context of positive, relative to neutral or negative, stimuli. In Experiments 1 and 2, positive words were judged to be of a larger size (Experiment 1) and led individuals to judge subsequently presented neutral objects as larger in size (Experiment 2). In Experiment 3, similar effects were observed in a mock subliminal presentation paradigm. In Experiment 4, positive word primes were perceived to have been presented for a longer duration of time, again relative to both neutral and negative word primes. Results are discussed in relation to theories of approach motivation, affective priming, and the motivation-perception interface. PMID:21875189

  19. Approach motivation as incentive salience: perceptual sources of evidence in relation to positive word primes.

    Science.gov (United States)

    Ode, Scott; Winters, Patricia L; Robinson, Michael D

    2012-02-01

    Four experiments (total N = 391) examined predictions derived from a biologically based incentive salience theory of approach motivation. In all experiments, judgments indicative of enhanced perceptual salience were exaggerated in the context of positive, relative to neutral or negative, stimuli. In Experiments 1 and 2, positive words were judged to be of a larger size (Experiment 1) and led individuals to judge subsequently presented neutral objects as larger in size (Experiment 2). In Experiment 3, similar effects were observed in a mock subliminal presentation paradigm. In Experiment 4, positive word primes were perceived to have been presented for a longer duration of time, again relative to both neutral and negative word primes. Results are discussed in relation to theories of approach motivation, affective priming, and the motivation-perception interface. PsycINFO Database Record (c) 2012 APA, all rights reserved

  20. Prototype photon position monitors for undulator beams at the advanced light source

    International Nuclear Information System (INIS)

    Warwick, T.; Shu, D.; Rodricks, B.; Johnson, E.D.

    1992-01-01

    Design criteria are described, and test results are presented, for prototype ALS undulator beam position monitors. The design is based on monitors presently in use at NSLS, with modifications to account for the widely varying and large K values of the undulators to be installed at the ALS. In particular, we have modified the design to simplify the thermal engineering and we have explored techniques to suppress the response of the monitors to soft photons, so that the beam position can be determined by measuring the higher energy photons which are better collimated

  1. Animation as a Visual Indicator of Positional Uncertainty in Geographic Information

    DEFF Research Database (Denmark)

    Kessler, Carsten; Lotstein, Enid

    2018-01-01

    Effectively communicating the uncertainty that is inherent in any kind of geographic information remains a challenge. This paper investigates the efficacy of animation as a visual variable to represent positional uncertainty in a web mapping context. More specifically, two different kinds...... of animation (a ‘bouncing’ and a ‘rubberband’ effect) have been compared to two static visual variables (symbol size and transparency), as well as different combinations of those variables in an online experiment with 163 participants. The participants’ task was to identify the most and least uncertain point...... visualizations using symbol size and transparency. Somewhat contradictory to those results, the participants showed a clear preference for those static visualizations....

  2. Lessons learned from a pilot implementation of the UMLS information sources map.

    Science.gov (United States)

    Miller, P L; Frawley, S J; Wright, L; Roderer, N K; Powsner, S M

    1995-01-01

    OBJECTIVE: To explore the software design issues involved in implementing an operational information sources map (ISM) knowledge base (KB) and system of navigational tools that can help medical users access network-based information sources relevant to a biomedical question. DESIGN: A pilot biomedical ISM KB and associated client-server software (ISM/Explorer) have been developed to help students, clinicians, researchers, and staff access network-based information sources, as part of the National Library of Medicine's (NLM) multi-institutional Unified Medical Language System (UMLS) project. The system allows the user to specify and constrain a search for a biomedical question of interest. The system then returns a list of sources matching the search. At this point the user may request 1) further information about a source, 2) that the list of sources be regrouped by different criteria to allow the user to get a better overall appreciation of the set of retrieved sources as a whole, or 3) automatic connection to a source. RESULTS: The pilot system operates in client-server mode and currently contains coded information for 121 sources. It is in routine use from approximately 40 workstations at the Yale School of Medicine. The lessons that have been learned are that: 1) it is important to make access to different versions of a source as seamless as possible, 2) achieving seamless, cross-platform access to heterogeneous sources is difficult, 3) significant differences exist between coding the subject content of an electronic information resource versus that of an article or a book, 4) customizing the ISM to multiple institutions entails significant complexities, and 5) there are many design trade-offs between specifying searches and viewing sets of retrieved sources that must be taken into consideration. CONCLUSION: An ISM KB and navigational tools have been constructed. In the process, much has been learned about the complexities of development and evaluation in this

  3. Lessons learned from a pilot implementation of the UMLS information sources map.

    Science.gov (United States)

    Miller, P L; Frawley, S J; Wright, L; Roderer, N K; Powsner, S M

    1995-01-01

    To explore the software design issues involved in implementing an operational information sources map (ISM) knowledge base (KB) and system of navigational tools that can help medical users access network-based information sources relevant to a biomedical question. A pilot biomedical ISM KB and associated client-server software (ISM/Explorer) have been developed to help students, clinicians, researchers, and staff access network-based information sources, as part of the National Library of Medicine's (NLM) multi-institutional Unified Medical Language System (UMLS) project. The system allows the user to specify and constrain a search for a biomedical question of interest. The system then returns a list of sources matching the search. At this point the user may request 1) further information about a source, 2) that the list of sources be regrouped by different criteria to allow the user to get a better overall appreciation of the set of retrieved sources as a whole, or 3) automatic connection to a source. The pilot system operates in client-server mode and currently contains coded information for 121 sources. It is in routine use from approximately 40 workstations at the Yale School of Medicine. The lessons that have been learned are that: 1) it is important to make access to different versions of a source as seamless as possible, 2) achieving seamless, cross-platform access to heterogeneous sources is difficult, 3) significant differences exist between coding the subject content of an electronic information resource versus that of an article or a book, 4) customizing the ISM to multiple institutions entails significant complexities, and 5) there are many design trade-offs between specifying searches and viewing sets of retrieved sources that must be taken into consideration. An ISM KB and navigational tools have been constructed. In the process, much has been learned about the complexities of development and evaluation in this new environment, which are different

  4. Information Literacy Skills Are Positively Correlated with Writing Grade and Overall Course Performance

    Directory of Open Access Journals (Sweden)

    Rachel Elizabeth Scott

    2017-06-01

    Full Text Available A Review of: Shao, X., & Purpur, G. (2016. Effects of information literacy skills on student writing and course performance. The Journal of Academic Librarianship, 42(6, 670-678. http://dx.doi.org/10.1016/j.acalib.2016.08.006 Abstract Objective – To measure the correlation of tested information literacy skills with individual writing scores and overall course grade. Design – Online, multiple-choice survey. Setting – Public research university in North Carolina, United States of America. Subjects – Freshmen students enrolled in either first-year seminar (UCO1200 or basic English writing course (ENG1000. Methods – A 25-question, forced-choice test was piloted with 30 students and measured for internal consistency using Cronbach’s Alphas. The survey instrument was slightly revised before being administered online via SelectSurvey, to 398 students in 19 different sections of either UCO1200 or ENG1000, during class sessions. The test measured students’ information literacy skills in four areas: research strategies, resource types, scholarly vs. popular, and evaluating websites. The preliminary questions asked for each student’s name, major (by category, number of library instruction sessions attended, and the names of library services utilized. The students’ information literacy scores were compared to their writing scores and overall course grades, both of which were obtained from course instructors. The information literacy scores were also analyzed for correlation to the number of library instruction sessions attended or the types of library services utilized. Main Results – Information literacy skills positively correlated with writing scores (n=344, r=-.153, p=0.004 and final course grades (n=345, r=0.112, p=0.037. Pearson’s Correlation Coefficients results demonstrated relationships between writing scores and the information literacy test section “Scholarly versus Popular Sources” (n=344, r=0.145, p=0.007, and final

  5. Health Information Sources, Perceived Vaccination Benefits, and Maintenance of Childhood Vaccination Schedules.

    Science.gov (United States)

    Hwang, Juwon; Shah, Dhavan V

    2018-06-05

    Parental concerns over the safety or necessity of childhood vaccination have increased over the past decades. At the same time, there has been a proliferation of vaccine-related information available through a range of health information sources. This study investigates the associations between evaluations of health information sources, parental perceptions of childhood vaccination benefits, and the maintenance of vaccination schedules for their children. Specifically, this study aims to (a) incorporate social media into the battery of health information sources and (b) differentiate households with a childhood autism diagnosis and those without, given unsubstantiated but persistent concerns about vaccine safety and autism. Analyzing a sample of U.S. households, a total of 4,174 parents who have at least one child under the age of 18 were analyzed, including 138 of parents of households with a childhood autism diagnosis. Results show that the more the parents value interpersonal communication and magazines as sources of health information, the more they perceive vaccination benefits, and the more the value they put on television, the better they keep vaccination schedules up-to-date for their children. On the other hand, social media are negatively associated with their perceptions of vaccination benefits. Although parents of children diagnosed with autism are less likely to perceive vaccination benefits, no interaction effects with evaluations of health information sources are found on parental perceptions of vaccination benefits or maintenance of schedules.

  6. Efficient structure from motion on large scenes using UAV with position and pose information

    Science.gov (United States)

    Teng, Xichao; Yu, Qifeng; Shang, Yang; Luo, Jing; Wang, Gang

    2018-04-01

    In this paper, we exploit prior information from global positioning systems and inertial measurement units to speed up the process of large scene reconstruction from images acquired by Unmanned Aerial Vehicles. We utilize weak pose information and intrinsic parameter to obtain the projection matrix for each view. As compared to unmanned aerial vehicles' flight altitude, topographic relief can usually be ignored, we assume that the scene is flat and use weak perspective camera to get projective transformations between two views. Furthermore, we propose an overlap criterion and select potentially matching view pairs between projective transformed views. A robust global structure from motion method is used for image based reconstruction. Our real world experiments show that the approach is accurate, scalable and computationally efficient. Moreover, projective transformations between views can also be used to eliminate false matching.

  7. Integrating remote sensing, geographic information systems and global positioning system techniques with hydrological modeling

    Science.gov (United States)

    Thakur, Jay Krishna; Singh, Sudhir Kumar; Ekanthalu, Vicky Shettigondahalli

    2017-07-01

    Integration of remote sensing (RS), geographic information systems (GIS) and global positioning system (GPS) are emerging research areas in the field of groundwater hydrology, resource management, environmental monitoring and during emergency response. Recent advancements in the fields of RS, GIS, GPS and higher level of computation will help in providing and handling a range of data simultaneously in a time- and cost-efficient manner. This review paper deals with hydrological modeling, uses of remote sensing and GIS in hydrological modeling, models of integrations and their need and in last the conclusion. After dealing with these issues conceptually and technically, we can develop better methods and novel approaches to handle large data sets and in a better way to communicate information related with rapidly decreasing societal resources, i.e. groundwater.

  8. Exploring the potentials of volunteered geographic Information as a source for spatial data acquisition

    International Nuclear Information System (INIS)

    Ariffin, Izyana; Solemon, Badariah; Anwar, Rina Md; Din, Marina Md; Azmi, Nor Nashrah

    2014-01-01

    The advancement of technologies nowadays enables participation by nonprofessionals, known as volunteers to participate in producing, sharing and consuming geographic information. Such information, termed as volunteered geographic Information (VGI) has created a new approach of gathering geographic information. This paper discusses the traditional way of acquiring geographic information and potentials of VGI as an information source in GIS applications. We also review four commonly cited applications which rely on volunteers for their geographic information based on five criteria; the geometry type available in the applications, availability of user profile, average number of attributes used in the applications, data type of the information (raster or vector) and the domain the application belongs to. This review serves as a preliminarv study in designing a GIS application used for asset management which aims at exploiting volunteers to produce geographic information related to assets

  9. Open source tools for the information theoretic analysis of neural data

    Directory of Open Access Journals (Sweden)

    Robin A. A Ince

    2010-05-01

    Full Text Available The recent and rapid development of open-source software tools for the analysis of neurophysiological datasets consisting of multiple simultaneous recordings of spikes, field potentials and other neural signals holds the promise for a significant advance in the standardization, transparency, quality, reproducibility and variety of techniques used to analyze neurophysiological data and integrate the information obtained at different spatial and temporal scales. In this Review we focus on recent advances in open source toolboxes for the information theoretic analysis of neural responses. We also present examples of their use to investigate the role of spike timing precision, correlations across neurons and field potential fluctuations in the encoding of sensory information. These information toolboxes, available both in Matlab and Python programming environments, hold the potential to enlarge the domain of application of information theory to neuroscience and to lead to new discoveries about how neurons encode and transmit information.

  10. Open source tools for the information theoretic analysis of neural data.

    Science.gov (United States)

    Ince, Robin A A; Mazzoni, Alberto; Petersen, Rasmus S; Panzeri, Stefano

    2010-01-01

    The recent and rapid development of open source software tools for the analysis of neurophysiological datasets consisting of simultaneous multiple recordings of spikes, field potentials and other neural signals holds the promise for a significant advance in the standardization, transparency, quality, reproducibility and variety of techniques used to analyze neurophysiological data and for the integration of information obtained at different spatial and temporal scales. In this review we focus on recent advances in open source toolboxes for the information theoretic analysis of neural responses. We also present examples of their use to investigate the role of spike timing precision, correlations across neurons, and field potential fluctuations in the encoding of sensory information. These information toolboxes, available both in MATLAB and Python programming environments, hold the potential to enlarge the domain of application of information theory to neuroscience and to lead to new discoveries about how neurons encode and transmit information.

  11. Study on upgrade on nuclear control related open source information website

    International Nuclear Information System (INIS)

    Kim, H. T.; Park, S. S.; Park, W. S.; Choi, Y. M.

    2002-01-01

    The open source information relevant to the nuclear control is regularly collected, analyzed, and published to the three web sites by the Technology Center for Nuclear Control (TCNC) of the Korea Atomic Energy Research Institute (KAERI). These web sites are world-wide, KAERI-wide, and TCNC-wide, respectively. We are to upgrade the KAERI-wide website to the access-controlled world-wide web site with some additional functionality. In this research, the current status of the three nuclear control related open source information websites managed by the TCNC was introduced and methods for upgrading the KAERI-wide open source information website and associated information security technology were reviewed

  12. Multiple human schemas and the communication-information sources use: An application of Q-methodology

    Directory of Open Access Journals (Sweden)

    Mansour Shahvali

    2014-12-01

    Full Text Available This study was conducted with the aim of developing a communication and information model for greenhouse farmers in Yazd city using schema theory. Performing the Q methodology together with the factor analysis, as such, the different variables were loaded over the five schematic factors which included the human philosophical nature, ideological, economic, social, and environmental-conservation beliefs. Running AMOS,of course, it was also unveiled that the philosophical, ideological, social, economic and environmental schemas influence directly on the personal communication-information sources use. Furthermore, the environmental-conservation schema affects directly and indirectly the personal communication-information sources use. More importantly, this study indicated the important role of the indigenous sources which play in constructing, evaluating and retrieving the environmental knowledge in respondents. The research predisposes a suitable context for policymakers who seek to draw up much more effective and appropriate communication and information strategies to address the specific target groups’ needs.

  13. Operation of a general purpose stepping motor-encoder positioning subsystem at the National Synchrotron Light Source

    International Nuclear Information System (INIS)

    Stubblefield, F.W.

    1985-11-01

    Four copies of a general purpose subsystem for mechanical positioning of detectors, samples, and beam line optical elements which constitute experiments at the National Synchrotron Light Source facility of Brookhaven National Laboratory have been constructed and placed into operation. Construction of a fifth subsystem unit is nearing completion. The subsystems affect mechanical positioning by controlling a set of stepping motor-encoder pairs. The units are general purpose in the sense that they receive commands over a 9600 baud asynchronous serial line compatible with the RS-232-C electrical signal standard, generate TTL-compatible streams of stepping pulses which can be used with a wide variety of stepping motors, and read back position values from a number of different types and models of position encoder. The basic structure of the motor controller subsystem is briefly reviewed. Additions to the subsystem made in response to problems indicated by actual operation of the four installed units are described in more detail

  14. 48 CFR 3.104-4 - Disclosure, protection, and marking of contractor bid or proposal information and source...

    Science.gov (United States)

    2010-10-01

    ... otherwise authorized by law or regulation. Any release containing contractor bid or proposal information or..., and marking of contractor bid or proposal information and source selection information. 3.104-4... marking of contractor bid or proposal information and source selection information. (a) Except as...

  15. ADHD knowledge, perceptions, and information sources: perspectives from a community sample of adolescents and their parents.

    Science.gov (United States)

    Bussing, Regina; Zima, Bonnie T; Mason, Dana M; Meyer, Johanna M; White, Kimberly; Garvan, Cynthia W

    2012-12-01

    The chronic illness model advocates for psychoeducation within a collaborative care model to enhance outcomes. To inform psychoeducational approaches for ADHD, this study describes parent and adolescent knowledge, perceptions, and information sources and explores how these vary by sociodemographic characteristics, ADHD risk, and past child mental health service use. Parents and adolescents were assessed 7.7 years after initial school district screening for ADHD risk. The study sample included 374 adolescents (56% high and 44% low ADHD risk) aged, on average, 15.4 (standard deviation = 1.8) years, and 36% were African American. Survey questions assessed ADHD knowledge, perceptions, and cues to action and elicited used and preferred information sources. Multiple logistic regression was used to determine potential independent predictors of ADHD knowledge. McNemar tests compared information source utilization against preference. Despite relatively high self-rated ADHD familiarity, misperceptions among parents and adolescents were common, including a sugar etiology (25% and 27%, respectively) and medication overuse (85% and 67%, respectively). African American respondents expressed less ADHD awareness and greater belief in sugar etiology than Caucasians. Parents used a wide range of ADHD information sources, whereas adolescents relied on social network members and teachers/school. However, parents and adolescents expressed similar strong preferences for the Internet (49% and 51%, respectively) and doctor (40% and 27%, respectively) as ADHD information sources. Culturally appropriate psychoeducational strategies are needed that combine doctor-provided ADHD information with reputable Internet sources. Despite time limitations during patient visits, both parents and teens place high priority on receiving information from their doctor. Copyright © 2012 Society for Adolescent Health and Medicine. Published by Elsevier Inc. All rights reserved.

  16. Source identification of water-soluble organic aerosols at a roadway site using a positive matrix factorization analysis.

    Science.gov (United States)

    Park, Seungshik; Cho, Sung Yong; Bae, Min-Suk

    2015-11-15

    Daily PM2.5 measurements were carried out at a local roadway every sixth day from May 2011 to August 2013 to obtain seasonal quantitative information on the primary and secondary sources of two water-soluble organic carbon (WSOC) fractions. Filter samples were analyzed for OC, elemental carbon (EC), WSOC, hydrophilic and hydrophobic WSOC fractions (WSOC(HPI) and WSOC(HPO)), and ionic species. An XAD solid phase extraction method and a total organic carbon analyzer were used to isolate the two WSOC fractions and determine their amounts, respectively. The WSOC/OC and WSOC(HPI)/WSOC ratios were 0.62±0.13 and 0.47±0.14, respectively. Similar seasonal profiles in EC, OC, and WSOC concentrations were observed, with higher concentrations occurring in the cold season and lower concentrations in the warm season. However, opposite results were obtained in WSOC/OC and WSOC(HPI)/WSOC ratios, with the higher in the warm season and the lower in the cold season. Correlation analyses indicated that two WSOC fractions in winter were likely attributed to secondary formation processes, biomass burning (BB), and traffic emissions, while WSOC(HPI) observed in other seasons were associated with secondary formation processes similar to those of oxalate and secondary inorganic species. A positive matrix factorization (PMF) model was employed to investigate the sources of two WSOC fractions. PMF indicated that concentrations of WSOC fractions were affected by five sources: secondary NO3(-) related, secondary SO4(2-) and oxalate related, traffic emissions, BB emissions, and sea-salt. Throughout the study period, secondary organic aerosols were estimated to be the most dominant contributor of WSOC fractions, with higher contributions occurring in the warm seasons. The contribution of secondary aerosol formation processes (NO3(-) related+SO4(2-) and oxalate related) to WSOC(HPI) and WSOC(HPO) was on an average 56.2% (45.0-73.8%) and 47.7% (39.6-52.1%), respectively. The seasonal average

  17. Parents’ Source of Vaccine Information and Impact on Vaccine Attitudes, Beliefs, and Nonmedical Exemptions

    Directory of Open Access Journals (Sweden)

    Abbey M. Jones

    2012-01-01

    Full Text Available In recent years, use of the Internet to obtain vaccine information has increased. Historical data are necessary to evaluate current vaccine information seeking trends in context. Between 2002 and 2003, surveys were mailed to 1,630 parents of fully vaccinated children and 815 parents of children with at least one vaccine exemption; 56.1% responded. Respondents were asked about their vaccine information sources, perceptions of these sources accuracy, and their beliefs about vaccination. Parents who did not view their child’s healthcare provider as a reliable vaccine information source were more likely to obtain vaccine information using the Internet. Parents who were younger, more highly educated, and opposed to school immunization requirements were more likely than their counterparts to use the Internet for vaccine information. Compared to parents who did not use the Internet for vaccine information, those who sought vaccine information on the Internet were more likely to have lower perceptions of vaccine safety (adjusted odds ratio (aOR, 1.66; 95% CI, 1.18–2.35, vaccine effectiveness (aOR, 1.83; 95% CI, 1.32–2.53, and disease susceptibility (aOR, 2.08; 95% CI, 1.49–2.90 and were more likely to have a child with a nonmedical exemption (aOR 3.53, 95% CI, 2.61–4.76. These findings provide context to interpret recent vaccine information seeking research.

  18. Antimicrobial Activity of Carbon Nanoparticles Isolated from Natural Sources against Pathogenic Gram-Negative and Gram-Positive Bacteria

    International Nuclear Information System (INIS)

    Varghese, S.; Jose, S.; Varghese, S.; Kuriakose, S.; Jose, S.

    2013-01-01

    This paper describes the isolation of carbon nanoparticles (CNPs) from kitchen soot, characterization of the CNPs by UV/visible spectroscopy, SEM and XRD, and their antimicrobial action. The antibacterial activity of the isolated carbon nanoparticles was tested against various pathogenic bacterial strains such as Gram-negative Proteus refrigere and Pseudomonas aeruginosa and Gram-positive Staphylococcus aureus and Streptococcus haemolyticus. The inhibition zones were measured, and it was found that the carbon nanoparticles isolated from natural sources are active against these Gram-negative and Gram-positive bacterial strains

  19. Services of the Czechoslovak Nuclear Information Centre, based on IAEA information sources

    International Nuclear Information System (INIS)

    Dufkova, M.

    1987-01-01

    Information services provided by the Nuclear Information Centre (NIC) as the sector information centre for the Czechoslovak nuclear programme proceed primarily from its membership of INIS. From INIS Atomindex tapes are computer-processed SDI searches, their price for one query is 3,948 Czechoslovak crowns per year. The user can at any time put forward a request for tuning or for a change of the initially requested query formulation. A copy of SDI searches is provided for 1,200 Czechoslovak crowns per annum to other interested persons or institutions who cannot, however, influence the query formulation. Since 1979, the NIC has been processing retrospective searches by direct online access to the INIS data base. The price of these searches ranges between 1,000 and 1,500 Czechoslovak crowns. Under the same conditions the NIC also provides retrospective searches from AGRIS. Since 1986, the NIC has extended its services by providing data from the UVTEI-UTZ data base centre in Prague. Retrospective searches can since 1985 be processed directly at the workplace of those interested, this through mobile terminals. All said services are followed up by services provided by the NIC library which contains more than 215,000 microfiches with full texts of nonconventional documents incorporated in INIS. (Z.M.)

  20. Quantum information entropies for position-dependent mass Schrödinger problem

    Energy Technology Data Exchange (ETDEWEB)

    Yañez-Navarro, G. [Departamento de Física, Escuela Superior de Física y Matemáticas, Instituto Politécnico Nacional, Edificio 9, UPALM, Mexico D. F. 07738 (Mexico); Sun, Guo-Hua, E-mail: sunghdb@yahoo.com [Centro Universitario Valle de Chalco, Universidad Autónoma del Estado de México, Valle de Chalco Solidaridad, Estado de México, 56615 (Mexico); Dytrych, T., E-mail: tdytrych@gmail.com [Department of Physics and Astronomy, Louisiana State University, Baton Rouge, LA 70803-4001 (United States); Launey, K.D., E-mail: kristina@baton.phys.lsu.edu [Department of Physics and Astronomy, Louisiana State University, Baton Rouge, LA 70803-4001 (United States); Dong, Shi-Hai, E-mail: dongsh2@yahoo.com [Departamento de Física, Escuela Superior de Física y Matemáticas, Instituto Politécnico Nacional, Edificio 9, UPALM, Mexico D. F. 07738 (Mexico); Department of Physics and Astronomy, Louisiana State University, Baton Rouge, LA 70803-4001 (United States); Draayer, J.P., E-mail: draayer@sura.org [Department of Physics and Astronomy, Louisiana State University, Baton Rouge, LA 70803-4001 (United States)

    2014-09-15

    The Shannon entropy for the position-dependent Schrödinger equation for a particle with a nonuniform solitonic mass density is evaluated in the case of a trivial null potential. The position S{sub x} and momentum S{sub p} information entropies for the three lowest-lying states are calculated. In particular, for these states, we are able to derive analytical solutions for the S{sub x} entropy as well as for the Fourier transformed wave functions, while the S{sub p} quantity is calculated numerically. We notice the behavior of the S{sub x} entropy, namely, it decreases as the mass barrier width narrows and becomes negative beyond a particular width. The negative Shannon entropy exists for the probability densities that are highly localized. The mass barrier determines the stability of the system. The dependence of S{sub p} on the width is contrary to the one for S{sub x}. Some interesting features of the information entropy densities ρ{sub s}(x) and ρ{sub s}(p) are demonstrated. In addition, the Bialynicki-Birula–Mycielski (BBM) inequality is tested for a number of states and found to hold for all the cases.

  1. Quantum information entropies for position-dependent mass Schrödinger problem

    International Nuclear Information System (INIS)

    Yañez-Navarro, G.; Sun, Guo-Hua; Dytrych, T.; Launey, K.D.; Dong, Shi-Hai; Draayer, J.P.

    2014-01-01

    The Shannon entropy for the position-dependent Schrödinger equation for a particle with a nonuniform solitonic mass density is evaluated in the case of a trivial null potential. The position S x and momentum S p information entropies for the three lowest-lying states are calculated. In particular, for these states, we are able to derive analytical solutions for the S x entropy as well as for the Fourier transformed wave functions, while the S p quantity is calculated numerically. We notice the behavior of the S x entropy, namely, it decreases as the mass barrier width narrows and becomes negative beyond a particular width. The negative Shannon entropy exists for the probability densities that are highly localized. The mass barrier determines the stability of the system. The dependence of S p on the width is contrary to the one for S x . Some interesting features of the information entropy densities ρ s (x) and ρ s (p) are demonstrated. In addition, the Bialynicki-Birula–Mycielski (BBM) inequality is tested for a number of states and found to hold for all the cases

  2. Performance of the advanced photon source (APS) linac beam position monitors (BPMs) with logarithmic amplifier electronics

    International Nuclear Information System (INIS)

    Fuja, R.E.; White, M.

    1995-01-01

    This paper discusses the performance of the logarithmic amplifier electronics system used with stripline BPMs to measure electron and positron beam positions at the APS linac. The 2856-MHz, S-band linac accelerates 30-nsec pulses of 1.7 A of electrons to 200 MeV, and focuses them onto a positron conversion target. The resulting 8 mA of positrons are further accelerated to 450 MeV by the positron linac. Beam position resolutions of 50 μm are easily obtainable in both the electron and positron linacs. The resolution of the 12-bit A/D converters limits the ultimate beam positron resolution to between 20 and 30 μm at this time

  3. Positioning e-skills within an organisation: An information systems management viewpoint

    Directory of Open Access Journals (Sweden)

    Zoran Mitrovic

    2010-10-01

    Full Text Available The intersection of business and IT in an organisation requires people with diverse business- and technology-related competences and skills, commonly referred to as ‘e-competences’ and ‘e-skills’. The positioning of these competences within an IT function in an organisation is (arguably well defined, but their place in other areas of business managerial concern in an organisation, such as business processes or organisational strategy, is still not sufficiently clear. As e-skills and e-competences are inevitably associated with the use of organisational information systems (IS, this paper reports an initial study aimed at positioning these competences and skills within an organisation from an IS perspective. The positioning was done by examining models of IS, e-competences and e-skills and identifying their possible areas of intersection, which resulted in mapping these competences and skills to the areas of managerial concern in an organisation – as seen from an IS perspective. This mapping has revealed an initial understanding of how business value, here seen as business benefits, is created by using the e-skills and e-competences (supposedly possessed by employees throughout an organisation.

  4. Positive deviance study to inform a Chagas disease control program in southern Ecuador.

    Science.gov (United States)

    Nieto-Sanchez, Claudia; Baus, Esteban G; Guerrero, Darwin; Grijalva, Mario J

    2015-05-01

    Chagas disease is caused by Trypanosoma cruzi, which is mainly transmitted by the faeces of triatomine insects that find favourable environments in poorly constructed houses. Previous studies have documented persistent triatomine infestation in houses in the province of Loja in southern Ecuador despite repeated insecticide and educational interventions. We aim to develop a sustainable strategy for the interruption of Chagas disease transmission by promoting living environments that are designed to prevent colonisation of rural houses by triatomines. This study used positive deviance to inform the design of an anti-triatomine prototype house by identifying knowledge, attitudes and practices used by families that have remained triatomine-free (2010-2012). Positive deviants reported practices that included maintenance of structural elements of the house, fumigation of dwellings and animal shelters, sweeping with "insect repellent" plants and relocation of domestic animals away from the house, among others. Participants favoured construction materials that do not drastically differ from those currently used (adobe walls and tile roofs). They also expressed their belief in a clear connection between a clean house and health. The family's economic dynamics affect space use and must be considered in the prototype's design. Overall, the results indicate a positive climate for the introduction of housing improvements as a protective measure against Chagas disease in this region.

  5. Positive deviance study to inform a Chagas disease control program in southern Ecuador

    Directory of Open Access Journals (Sweden)

    Claudia Nieto-Sanchez

    2015-05-01

    Full Text Available Chagas disease is caused by Trypanosoma cruzi, which is mainly transmitted by the faeces of triatomine insects that find favourable environments in poorly constructed houses. Previous studies have documented persistent triatomine infestation in houses in the province of Loja in southern Ecuador despite repeated insecticide and educational interventions. We aim to develop a sustainable strategy for the interruption of Chagas disease transmission by promoting living environments that are designed to prevent colonisation of rural houses by triatomines. This study used positive deviance to inform the design of an anti-triatomine prototype house by identifying knowledge, attitudes and practices used by families that have remained triatomine-free (2010-2012. Positive deviants reported practices that included maintenance of structural elements of the house, fumigation of dwellings and animal shelters, sweeping with "insect repellent" plants and relocation of domestic animals away from the house, among others. Participants favoured construction materials that do not drastically differ from those currently used (adobe walls and tile roofs. They also expressed their belief in a clear connection between a clean house and health. The family's economic dynamics affect space use and must be considered in the prototype's design. Overall, the results indicate a positive climate for the introduction of housing improvements as a protective measure against Chagas disease in this region.

  6. Search Strategy of Detector Position For Neutron Source Multiplication Method by Using Detected-Neutron Multiplication Factor

    International Nuclear Information System (INIS)

    Endo, Tomohiro

    2011-01-01

    In this paper, an alternative definition of a neutron multiplication factor, detected-neutron multiplication factor kdet, is produced for the neutron source multiplication method..(NSM). By using kdet, a search strategy of appropriate detector position for NSM is also proposed. The NSM is one of the practical subcritical measurement techniques, i.e., the NSM does not require any special equipment other than a stationary external neutron source and an ordinary neutron detector. Additionally, the NSM method is based on steady-state analysis, so that this technique is very suitable for quasi real-time measurement. It is noted that the correction factors play important roles in order to accurately estimate subcriticality from the measured neutron count rates. The present paper aims to clarify how to correct the subcriticality measured by the NSM method, the physical meaning of the correction factors, and how to reduce the impact of correction factors by setting a neutron detector at an appropriate detector position

  7. An evaluation of information sources and requirements for nuclear plant-aging research with life-extension implications

    International Nuclear Information System (INIS)

    Jacobs, P.T.

    1986-01-01

    Information requirements for plant-aging and life-extension research are discussed. Various information sources that have been used in plant-aging studies and reliability assessments are described. Data-base searches and analyses were performed for a specific system using several data bases and plant sources. Comments are provided on the results using the various information sources

  8. Collection and Analysis of Open Source News for Information Awareness and Early Warning in Nuclear Safeguards

    International Nuclear Information System (INIS)

    Cojazzi, Giacomo G.M.; Van Der Goot, Erik; Verile, Marco; Wolfart, Erik; Rutan Fowler, Marcy; Feldman, Yana; Hammond, William; Schweighardt, John; Ferguson, Mattew

    2013-01-01

    Acquisition and analysis of open source information plays an increasingly important role in the IAEA’s move towards safeguards implementation based on all safeguards relevant information known about a State. The growing volume of open source information requires the development of technology and tools capable of effectively collecting relevant information, filtering out “noise”, organizing valuable information in a clear and accessible manner, and assessing its relevance. In this context, the IAEA’s Division of Information Management (SGIM) and the EC’s Joint Research Centre (JRC) are currently implementing a joint project to advance the effectiveness and efficiency of the IAEA’s workflow for open source information collection and analysis. The objective is to provide tools to support SGIM in the production of the SGIM Open Source Highlights, which is a daily news brief consisting of the most pertinent news stories relevant to safeguards and non-proliferation. The process involves the review and selection of hundreds of articles from a wide array of specifically selected sources. The joint activity exploits the JRC’s Europe Media Monitor (EMM) and NewsDesk applications: EMM automatically collects and analyses news articles from a pre-defined list of web sites, and NewsDesk allows an analyst to manually select the most relevant articles from the EMM stream for further processing. The paper discusses the IAEA’s workflow for the production of SGIM Open Source Highlights and describes the capabilities of EMM and NewsDesk. It then provides an overview of the joint activities since the project started in 2011, which were focused i) on setting up a separate EMM installation dedicated to the nuclear safeguards and security domain (Nuclear Security Media Monitor, NSMM) and ii) on evaluating the NSMM/NewsDesk for meeting the IAEA’s needs. Finally, it presents the current use NSMM/NewsDesk at the IAEA and proposes options for further integration with the

  9. Sources of Information During the 2014 West Virginia Water Crisis: A Cross-Sectional Survey.

    Science.gov (United States)

    Savoia, Elena; Lin, Leesa; Viswanath, Kasisomayajula

    2017-04-01

    On January 9, 2014, a faulty storage tank leaked 10,000 gallons of an industrial coal-processing liquid into the Elk River in West Virginia, contaminating the drinking water of 9 counties collectively known as the Kanawha Valley. In the context of this event, we explored the relationship between social determinants and (1) the timeliness with which residents learned about the crisis, (2) the source of information, (3) opinions on the source of information, (4) information-seeking behaviors, and (5) knowledge acquired. Between February 7 and 26, 2014, we conducted a survey of 690 adult residents of West Virginia. Descriptive statistics and multivariable statistical models were performed. Information about water contamination spread quickly, with 88% of respondents from the affected counties hearing about the incident on the same day it occurred. Most people received the information from local television news (73%); social media users had 120% increased odds of knowing about the recommended behaviors. People who had a favorable opinion of the source of information demonstrated better knowledge of recommended behaviors. The use of local television news during a crisis is important for timely dissemination of information. Information exposure across segments of the population differed on the basis of the population's background characteristics. (Disaster Med Public Health Preparedness. 2017;11:196-206).

  10. Genetic & virulence profiling of ESBL-positive E. coli from nosocomial & veterinary sources.

    Science.gov (United States)

    Tyrrell, J M; Wootton, M; Toleman, M A; Howe, R A; Woodward, M; Walsh, T R

    2016-04-15

    CTX-M genes are the most prevalent ESBL globally, infiltrating nosocomial, community and environmental settings. Wild and domesticated animals may act as effective vectors for the dissemination of CTX-producing Enterobacteriaceae. This study aimed to contextualise blaCTX-M-14-positive, cephalosporin-resistant Enterobacteriaceae human infections and compared resistance and pathogenicity markers with veterinary isolates. Epidemiologically related human (n=18) and veterinary (n=4) blaCTX-M-14-positive E. coli were fully characterised. All were typed by XbaI pulsed field gel electrophoresis and ST. Chromosomal/plasmidic locations of blaCTX-M-14 were deduced by S1-nuclease digestion, and association with ISEcp1 was investigated by sequencing. Conjugation experiments assessed transmissibility of plasmids carrying blaCTX-M-14. Presence of virulence determinants was screened by PCR assay and pathogenicity potential was determined by in vitro Galleria mellonella infection models. 84% of clinical E. coli originated from community patients. blaCTX-M-14 was found ubiquitously downstream of ISEcp1 upon conjugative plasmids (25-150 kb). blaCTX-M-14 was also found upon the chromosome of eight E. coli isolates. CTX-M-14-producing E. coli were found at multiple hospital sites. Clonal commonality between patient, hospitals and livestock microbial populations was found. In vivo model survival rates from clinical isolates (30%) and veterinary isolates (0%) were significantly different (pE. coli involving community patients and farm livestock. blaCTX-M-14 positive human clinical isolates carry a lower intrinsic pathogenic potential than veterinary E. coli highlighting the need for greater veterinary practices in preventing dissemination of MDR E. coli among livestock. Copyright © 2016. Published by Elsevier B.V.

  11. Size-resolved source apportionment of ambient particles by positive matrix factorization at Gosan background site in East Asia

    Directory of Open Access Journals (Sweden)

    J. S. Han

    2006-01-01

    Full Text Available Size- and time-resolved aerosol samples were collected using an eight-stage Davis rotating unit for monitoring (DRUM sampler from 29 March to 29 May in 2002 at Gosan, Jeju Island, Korea, which is one of the representative background sites in East Asia. These samples were analyzed using synchrotron X-ray fluorescence for 3-h average concentrations of 19 elements consisting of S, Si, Al, Fe, Ca, Cl, Cu, Zn, Ti, K, Mn, Pb, Ni, V, Se, As, Rb, Cr, Br. The size-resolved data sets were then analyzed using the positive matrix factorization (PMF technique in order to identify possible sources and estimate their contribution to particulate matter mass. PMF analysis uses the uncertainty of the measured data to provide an optimal weighting. Fifteen sources were resolved in eight size ranges (0.07~12 μm and included continental soil, local soil, sea salt, biomass/biofuel burning, coal combustion, oil heating furnace, residual oil fired boiler, municipal incineration, nonferrous metal source, ferrous metal source, gasoline vehicle, diesel vehicle, copper smelter and volcanic emission. PMF analysis of size-resolved source contributions showed that natural sources represented by local soil, sea salt and continental soil contributed about 79% to the predicted primary particulate matter (PM mass in the coarse size range (1.15~12 μm. On the other hand, anthropogenic sources such as coal combustion and biomass/biofuel burning contributed about 60% in the fine size range (0.56~2.5 μm. The diesel vehicle source contributed the most in the ultra-fine size range (0.07~0.56 μm and was responsible for about 52% of the primary PM mass.

  12. Geothermal industry position paper: EPA regulatory options and research and development information needs

    Energy Technology Data Exchange (ETDEWEB)

    D' Alessio, G.

    1977-08-01

    The environmental impact of geothermal energy development may be less intense or widespread than that of some other energy sources; however, it is the first example of a number of emerging energy technologies that must be dealt with by EPA. EPA may consider a spectrum of options ranging from a posutre of business as usual to one of immediate setting of standards, as favored by ERDA. The paper discusses the regulatory approaches and the potential problems that geothermal energy may present in the areas of air quality, water quality, and other impacts. It is recommended that a coordinated program of research be drawn up, comprised of specific research projects, the types of geothermal resource to which they apply, and the date by which the information is required.

  13. Geothermal Industry Position Paper: EPA Regulatory Options and Research and Development Information Needs

    Energy Technology Data Exchange (ETDEWEB)

    Swetnam, G.F.

    1976-11-01

    The environmental impact of geothermal energy development may be less intense or widespread than that of some other energy sources; however, it is the first example of a number of emerging energy technologies that must be dealt with by EPA. EPA may consider a spectrum of options ranging from a posture of business as usual to one of immediate setting of standards, as favored by ERDA. The paper discusses the regulatory approaches and the potential problems that geothermal energy may present in the areas of air quality, water quality, and other impacts. It is recommended that a coordinated program of research be drawn up, comprised of specific research projects, the types of geothermal resource to which they apply, and the date by which the information is required.

  14. Analytical calculation of the solid angle subtended by an arbitrarily positioned ellipsoid to a point source

    International Nuclear Information System (INIS)

    Heitz, Eric

    2017-01-01

    We present a geometric method for computing an ellipse that subtends the same solid-angle domain as an arbitrarily positioned ellipsoid. With this method we can extend existing analytical solid-angle calculations of ellipses to ellipsoids. Our idea consists of applying a linear transformation on the ellipsoid such that it is transformed into a sphere from which a disk that covers the same solid-angle domain can be computed. We demonstrate that by applying the inverse linear transformation on this disk we obtain an ellipse that subtends the same solid-angle domain as the ellipsoid. We provide a MATLAB implementation of our algorithm and we validate it numerically.

  15. Analytical calculation of the solid angle subtended by an arbitrarily positioned ellipsoid to a point source

    Energy Technology Data Exchange (ETDEWEB)

    Heitz, Eric, E-mail: eheitz.research@gmail.com

    2017-04-21

    We present a geometric method for computing an ellipse that subtends the same solid-angle domain as an arbitrarily positioned ellipsoid. With this method we can extend existing analytical solid-angle calculations of ellipses to ellipsoids. Our idea consists of applying a linear transformation on the ellipsoid such that it is transformed into a sphere from which a disk that covers the same solid-angle domain can be computed. We demonstrate that by applying the inverse linear transformation on this disk we obtain an ellipse that subtends the same solid-angle domain as the ellipsoid. We provide a MATLAB implementation of our algorithm and we validate it numerically.

  16. Development of Methods for Obtaining Position Image and Chemical Binding Information from Flow Experiments of Porous Media

    Energy Technology Data Exchange (ETDEWEB)

    Haugan, Are

    1998-12-01

    Existing oil reservoirs might be more fully exploited if the properties of the flow of oil and water in porous media were better known. In laboratory experiments it is important to collect as much information as possible to make a descriptive model of the system, including position imaging and chemical binding information. This thesis develops nuclear methods for obtaining position image and chemical binding information from flow experiments of porous media. A combined positron emission tomography and single photon emission computed tomography system to obtain position images, and a time-differential perturbed angular correlation system to obtain chemical binding information, have been built and thoroughly tested. 68 refs., 123 figs., 14 tabs.

  17. Analysis of safety information for nuclear power plants and development of source term estimation program

    International Nuclear Information System (INIS)

    Kim, Tae Woon; Choi, Seong Soo; Park, Jin Hee

    1999-12-01

    Current CARE(Computerized Advisory System for Radiological Emergency) in KINS(Korea Institute of Nuclear Safety) has no STES(Source Term Estimation System) which links between SIDS(Safety Information Display System) and FADAS(Following Accident Dose Assessment System). So in this study, STES is under development. STES system is the system that estimates the source term based on the safety information provided by SIDS. Estimated source term is given to FADAS as an input for estimation of environmental effect of radiation. Through this first year project STES for the Kori 3,4 and Younggwang 1,2 has been developed. Since there is no CARE for Wolsong(PHWR) plants yet, CARE for Wolsong is under construction. The safety parameters are selected and the safety information display screens and the alarm logic for plant status change are developed for Wolsong Unit 2 based on the design documents for CANDU plants

  18. Open-Source web-based geographical information system for health exposure assessment

    Directory of Open Access Journals (Sweden)

    Evans Barry

    2012-01-01

    Full Text Available Abstract This paper presents the design and development of an open source web-based Geographical Information System allowing users to visualise, customise and interact with spatial data within their web browser. The developed application shows that by using solely Open Source software it was possible to develop a customisable web based GIS application that provides functions necessary to convey health and environmental data to experts and non-experts alike without the requirement of proprietary software.

  19. Open-Source web-based geographical information system for health exposure assessment

    DEFF Research Database (Denmark)

    Evans, Barry; Sabel, Clive E

    2012-01-01

    This paper presents the design and development of an open source web-based Geographical Information System allowing users to visualise, customise and interact with spatial data within their web browser. The developed application shows that by using solely Open Source software it was possible to d...... to develop a customisable web based GIS application that provides functions necessary to convey health and environmental data to experts and non-experts alike without the requirement of proprietary software....

  20. European consumers' use of and trust in information sources about fish

    DEFF Research Database (Denmark)

    Pieniak, Zuzanna; Verbeke, Wim; Scholderer, Joachim

    2007-01-01

    This paper focuses on identifying segments of consumers based on their use of and trust in information sources about fish. Cross-sectional data were collected through the SEAFOODplus pan-European consumer survey (n = 4786) with samples representative for age and region in Belgium, the Netherlands......, knowledge and behaviour towards fish, and socio-demographic profile. Recommendations for the use of multiple sources targeted to a particular audience's interest and behavioural profile were formulated....

  1. Adoption of Free Open Source Geographic Information System Solution for Health Sector in Zanzibar Tanzania

    OpenAIRE

    BAKAR, Abubakar D.; KIMARO, Honest C.; SULTAN, Abu Bakar MD; HAMIAR, S.

    2014-01-01

    The study aims at developing in-depth understanding on how Open Source Geographic Information System technology is used to provide solutions for data visualization in the health sector of Zanzibar, Tanzania. The study focuses on implementing the health visualization solutions for the purpose of bridging the gap during the transition period from proprietary software to the Free Open-Source Software using Key Indicator Data System. The developed tool facilitates data integration between the two...

  2. Robust Correlation Analyses: False Positive and Power Validation Using a New Open Source Matlab Toolbox

    Science.gov (United States)

    Pernet, Cyril R.; Wilcox, Rand; Rousselet, Guillaume A.

    2012-01-01

    Pearson’s correlation measures the strength of the association between two variables. The technique is, however, restricted to linear associations and is overly sensitive to outliers. Indeed, a single outlier can result in a highly inaccurate summary of the data. Yet, it remains the most commonly used measure of association in psychology research. Here we describe a free Matlab(R) based toolbox (http://sourceforge.net/projects/robustcorrtool/) that computes robust measures of association between two or more random variables: the percentage-bend correlation and skipped-correlations. After illustrating how to use the toolbox, we show that robust methods, where outliers are down weighted or removed and accounted for in significance testing, provide better estimates of the true association with accurate false positive control and without loss of power. The different correlation methods were tested with normal data and normal data contaminated with marginal or bivariate outliers. We report estimates of effect size, false positive rate and power, and advise on which technique to use depending on the data at hand. PMID:23335907

  3. Robust correlation analyses: false positive and power validation using a new open source matlab toolbox.

    Science.gov (United States)

    Pernet, Cyril R; Wilcox, Rand; Rousselet, Guillaume A

    2012-01-01

    Pearson's correlation measures the strength of the association between two variables. The technique is, however, restricted to linear associations and is overly sensitive to outliers. Indeed, a single outlier can result in a highly inaccurate summary of the data. Yet, it remains the most commonly used measure of association in psychology research. Here we describe a free Matlab((R)) based toolbox (http://sourceforge.net/projects/robustcorrtool/) that computes robust measures of association between two or more random variables: the percentage-bend correlation and skipped-correlations. After illustrating how to use the toolbox, we show that robust methods, where outliers are down weighted or removed and accounted for in significance testing, provide better estimates of the true association with accurate false positive control and without loss of power. The different correlation methods were tested with normal data and normal data contaminated with marginal or bivariate outliers. We report estimates of effect size, false positive rate and power, and advise on which technique to use depending on the data at hand.

  4. The source of investment cash flow sensitivity in manufacturing firms: Is it asymmetric information or agency costs?

    Directory of Open Access Journals (Sweden)

    Daniel Makina

    2016-09-01

    Full Text Available In the literature, positive investment cash flow sensitivity is attributed to either asymmetric information induced financing constraints or the agency costs of free cash flow. Using data from a sample of 68 manufacturing firms listed on the South African JSE, this paper contributes to the literature by investigating the source of investment cash flow sensitivity. We have found that asymmetric information explains the positive investment cash flow sensitivity better than agency costs. Furthermore, asymmetric information has been observed to be more pronounced in low-dividend-paying firms and small firms. Despite South Africa’s having a developed financial system by international standards, small firms are seen to be financially constrained. We attribute the absence of investment cash flow sensitivity due to agency costs to good corporate governance of South African listed firms. Thus the paper provides further evidence in support of the proposition in the literature that the source of investment cash flow sensitivity may depend on the institutional setting of a country, such as its corporate governance.

  5. Emergency contraception: Sources of information and perceptions of access among young adults.

    Science.gov (United States)

    Garrett, Kyla P; Widman, Laura; Francis, Diane B; Noar, Seth M

    2016-01-01

    Emergency contraception (EC) can prevent pregnancy for up to 5 days after unprotected sex. Although EC has become increasingly available, little is known about perceptions of young adults regarding access to EC or whether information sources about EC relate to perceived access among young adults. Over a 1-week period in November 2013, a self-report survey was administered to 352 college students (67% women) at the student union of a large, public university in the southeastern United States. The survey assessed three aspects of EC: perceived access, information sources, and prior use. Twenty-one percent of participants had used EC. Participants reported relatively high perceptions of access to EC, with females reporting higher perceptions of access than males. Prior to the study, 7.4% of students had never heard of EC; the remaining students had heard of EC from an average of four sources. Among women, hearing of EC from media, interpersonal, or health education sources was significantly associated with greater perceived access (ps sources were associated with perceived access (ps > .10). Future EC awareness efforts for women should leverage all three of these sources, while future research should examine specific sources to focus on the content, quality, and frequency of messages.

  6. Positive matrix factorization as source apportionment of soil lead and cadmium around a battery plant (Changxing County, China).

    Science.gov (United States)

    Xue, Jian-long; Zhi, Yu-you; Yang, Li-ping; Shi, Jia-chun; Zeng, Ling-zao; Wu, Lao-sheng

    2014-06-01

    Chemical compositions of soil samples are multivariate in nature and provide datasets suitable for the application of multivariate factor analytical techniques. One of the analytical techniques, the positive matrix factorization (PMF), uses a weighted least square by fitting the data matrix to determine the weights of the sources based on the error estimates of each data point. In this research, PMF was employed to apportion the sources of heavy metals in 104 soil samples taken within a 1-km radius of a lead battery plant contaminated site in Changxing County, Zhejiang Province, China. The site is heavily contaminated with high concentrations of lead (Pb) and cadmium (Cd). PMF successfully partitioned the variances into sources related to soil background, agronomic practices, and the lead battery plants combined with a geostatistical approach. It was estimated that the lead battery plants and the agronomic practices contributed 55.37 and 29.28%, respectively, for soil Pb of the total source. Soil Cd mainly came from the lead battery plants (65.92%), followed by the agronomic practices (21.65%), and soil parent materials (12.43%). This research indicates that PMF combined with geostatistics is a useful tool for source identification and apportionment.

  7. Progress and trends in patients' mindset on dental implants. I: level of information, sources of information and need for patient information.

    Science.gov (United States)

    Pommer, Bernhard; Zechner, Werner; Watzak, Georg; Ulm, Christian; Watzek, Georg; Tepper, Gabor

    2011-02-01

    Little is known about the level of information on implant dentistry in the public. A representative opinion poll on dental implants in the Austrian population was published in 2003 (Clinical Oral Implants Research 14:621-642). Seven years later, the poll was rerun to assess the up-to-date information level and evaluate recent progress and trends in patients' mindset on dental implants. One thousand adults--representative for the Austrian population--were presented with a total of 19 questionnaire items regarding the level and the sources of information about dental implants as well as the subjective and objective need for patient information. Compared with the survey of 2003, the subjective level of patient information about implant dentistry has significantly increased in the Austrian population. The patients' implant awareness rate was 79%. The objective level of general knowledge about dental implants was still all but satisfactory revealing unrealistic patient expectations. Three-quarters trusted their dentists for information about dental implants, while one-quarter turned to the media. The patients' wish for high-quality implant restorations was significantly higher than in 2003, yet the majority felt that only specialists should perform implant dentistry. This representative survey reveals that dentists are still the main source of patient information, but throws doubt on the quality of their public relations work. Dentists must improve communication strategies to provide their patients with comprehensible, legally tenable information on dental implants and bridge information gaps in the future. © 2010 John Wiley & Sons A/S.

  8. Query-by-Example Music Information Retrieval by Score-Informed Source Separation and Remixing Technologies

    Directory of Open Access Journals (Sweden)

    Goto Masataka

    2010-01-01

    Full Text Available We describe a novel query-by-example (QBE approach in music information retrieval that allows a user to customize query examples by directly modifying the volume of different instrument parts. The underlying hypothesis of this approach is that the musical mood of retrieved results changes in relation to the volume balance of different instruments. On the basis of this hypothesis, we aim to clarify the relationship between the change in the volume balance of a query and the genre of the retrieved pieces, called genre classification shift. Such an understanding would allow us to instruct users in how to generate alternative queries without finding other appropriate pieces. Our QBE system first separates all instrument parts from the audio signal of a piece with the help of its musical score, and then it allows users remix these parts to change the acoustic features that represent the musical mood of the piece. Experimental results showed that the genre classification shift was actually caused by the volume change in the vocal, guitar, and drum parts.

  9. Information system architecture to support transparent access to distributed, heterogeneous data sources

    International Nuclear Information System (INIS)

    Brown, J.C.

    1994-08-01

    Quality situation assessment and decision making require access to multiple sources of data and information. Insufficient accessibility to data exists for many large corporations and Government agencies. By utilizing current advances in computer technology, today's situation analyst's have a wealth of information at their disposal. There are many potential solutions to the information accessibility problem using today's technology. The United States Department of Energy (US-DOE) faced this problem when dealing with one class of problem in the US. The result of their efforts has been the creation of the Tank Waste Information Network System -- TWINS. The TWINS solution combines many technologies to address problems in several areas such as User Interfaces, Transparent Access to Multiple Data Sources, and Integrated Data Access. Data related to the complex is currently distributed throughout several US-DOE installations. Over time, each installation has adopted their own set of standards as related to information management. Heterogeneous hardware and software platforms exist both across the complex and within a single installation. Standards for information management vary between US-DOE mission areas within installations. These factors contribute to the complexity of accessing information in a manner that enhances the performance and decision making process of the analysts. This paper presents one approach taken by the DOE to resolve the problem of distributed, heterogeneous, multi-media information management for the HLW Tank complex. The information system architecture developed for the DOE by the TWINS effort is one that is adaptable to other problem domains and uses

  10. Super-resolution for a point source better than λ/500 using positive refraction

    International Nuclear Information System (INIS)

    Miñano, Juan C; González, Juan C; Benítez, Pablo; Grabovickic, Dejan; Marqués, Ricardo; Delgado, Vicente; Freire, Manuel

    2011-01-01

    Leonhardt (2009 New J. Phys. 11 093040) demonstrated that the two-dimensional (2D) Maxwell fish eye (MFE) lens can focus perfectly 2D Helmholtz waves of arbitrary frequency; that is, it can transport perfectly an outward (monopole) 2D Helmholtz wave field, generated by a point source, towards a ‘perfect point drain’ located at the corresponding image point. Moreover, a prototype with λ/5 super-resolution property for one microwave frequency has been manufactured and tested (Ma et al 2010 arXiv:1007.2530v1; Ma et al 2010 New J. Phys. 13 033016). However, neither software simulations nor experimental measurements for a broad band of frequencies have yet been reported. Here, we present steady-state simulations with a non-perfect drain for a device equivalent to the MFE, called the spherical geodesic waveguide (SGW), which predicts up to λ/500 super-resolution close to discrete frequencies. Out of these frequencies, the SGW does not show super-resolution in the analysis carried out. (paper)

  11. Super-resolution for a point source better than λ/500 using positive refraction

    Science.gov (United States)

    Miñano, Juan C.; Marqués, Ricardo; González, Juan C.; Benítez, Pablo; Delgado, Vicente; Grabovickic, Dejan; Freire, Manuel

    2011-12-01

    Leonhardt (2009 New J. Phys. 11 093040) demonstrated that the two-dimensional (2D) Maxwell fish eye (MFE) lens can focus perfectly 2D Helmholtz waves of arbitrary frequency; that is, it can transport perfectly an outward (monopole) 2D Helmholtz wave field, generated by a point source, towards a ‘perfect point drain’ located at the corresponding image point. Moreover, a prototype with λ/5 super-resolution property for one microwave frequency has been manufactured and tested (Ma et al 2010 arXiv:1007.2530v1; Ma et al 2010 New J. Phys. 13 033016). However, neither software simulations nor experimental measurements for a broad band of frequencies have yet been reported. Here, we present steady-state simulations with a non-perfect drain for a device equivalent to the MFE, called the spherical geodesic waveguide (SGW), which predicts up to λ/500 super-resolution close to discrete frequencies. Out of these frequencies, the SGW does not show super-resolution in the analysis carried out.

  12. Evaluation of effective source position for local linear accelerator and inserts

    CERN Document Server

    Mansy, M; Sharaf, M; El-Fiki, M A; Sherif, M

    1999-01-01

    All types of treatment planning systems need some input measured beam data. Such data differ in type and number depending on the model of electron beam algorithm used inside. In addition to the number of percentage depth dose (%DD) and cross beam profiles, the effective source surface distance parameter SSD sub e sub f sub f was also recommended to be measured and transferred to the planning system. Output measurements were carried out using 0.6cc cylindrical Farmer type ion chamber placed in water phantom at depth of dose maximum, in Radiat. Phys. Dep., Malmoe Hospital, Lund University, Sweden. Results were collected for all available energies combined with both applicators and inserts on a Varian Clinac 2100C. SSD sub e sub f sub f was determined from the ionization measurements using equation given by Khan et al.(1991). Comparing the results with those obtained by Roback et al. (1995) on a similar Varian Clinac 2100C, it was found that the deviation of SSD sub e sub f sub f was <=7.5% for combination of...

  13. Factors Related to the Selection of Information Sources: A Study of Ramkhamhaeng University Regional Campuses Graduate Students

    Science.gov (United States)

    Angchun, Peemasak

    2011-01-01

    This study assessed students' satisfaction with Ramkhamhaeng University regional library services (RURLs) and the perceived quality of information retrieved from other information sources. In particular, this study investigated factors relating to regional students' selection of information sources to meet their information needs. The researcher…

  14. Health Information Technology Continues to Show Positive Effect on Medical Outcomes: Systematic Review.

    Science.gov (United States)

    Kruse, Clemens Scott; Beane, Amanda

    2018-02-05

    Health information technology (HIT) has been introduced into the health care industry since the 1960s when mainframes assisted with financial transactions, but questions remained about HIT's contribution to medical outcomes. Several systematic reviews since the 1990s have focused on this relationship. This review updates the literature. The purpose of this review was to analyze the current literature for the impact of HIT on medical outcomes. We hypothesized that there is a positive association between the adoption of HIT and medical outcomes. We queried the Cumulative Index of Nursing and Allied Health Literature (CINAHL) and Medical Literature Analysis and Retrieval System Online (MEDLINE) by PubMed databases for peer-reviewed publications in the last 5 years that defined an HIT intervention and an effect on medical outcomes in terms of efficiency or effectiveness. We structured the review from the Primary Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA), and we conducted the review in accordance with the Assessment for Multiple Systematic Reviews (AMSTAR). We narrowed our search from 3636 papers to 37 for final analysis. At least one improved medical outcome as a result of HIT adoption was identified in 81% (25/37) of research studies that met inclusion criteria, thus strongly supporting our hypothesis. No statistical difference in outcomes was identified as a result of HIT in 19% of included studies. Twelve categories of HIT and three categories of outcomes occurred 38 and 65 times, respectively. A strong majority of the literature shows positive effects of HIT on the effectiveness of medical outcomes, which positively supports efforts that prepare for stage 3 of meaningful use. This aligns with previous reviews in other time frames. ©Clemens Scott Kruse, Amanda Beane. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 05.02.2018.

  15. YouTube Videos as a Source of Information About Clinical Trials: Observational Study.

    Science.gov (United States)

    Hillyer, Grace Clarke; MacLean, Sarah A; Beauchemin, Melissa; Basch, Corey H; Schmitt, Karen M; Segall, Leslie; Kelsen, Moshe; Brogan, Frances L; Schwartz, Gary K

    2018-06-26

    Clinical trials are essential to the advancement of cancer treatment but fewer than 5% of adult cancer patients enroll in a trial. A commonly cited barrier to participation is the lack of understanding about clinical trials. Since the internet is a popular source of health-related information and YouTube is the second most visited website in the world, we examined the content of the top 115 YouTube videos about clinical trials to evaluate clinical trial information available through this medium. YouTube videos posted prior to March 2017 were searched using selected keywords. A snowballing technique was used to identify videos wherein sequential screening of the autofill search results for each set of keywords was conducted. Video characteristics (eg, number of views and video length) were recorded. The content was broadly grouped as related to purpose, phases, design, safety and ethics, and participant considerations. Stepwise multivariable logistic regression analysis was conducted to assess associations between video type (cancer vs noncancer) and video characteristics and content. In total, 115 videos were reviewed. Of these, 46/115 (40.0%) were cancer clinical trials videos and 69/115 (60.0%) were noncancer/general clinical trial videos. Most videos were created by health care organizations/cancer centers (34/115, 29.6%), were oriented toward patients (67/115, 58.3%) and the general public (68/115, 59.1%), and were informational (79/115, 68.7%); altruism was a common theme (31/115, 27.0%). Compared with noncancer videos, cancer clinical trials videos more frequently used an affective communication style and mentioned the benefits of participation. Cancer clinical trial videos were also much more likely to raise the issue of costs associated with participation (odds ratio [OR] 5.93, 95% CI 1.15-29.46) and advise patients to communicate with their physician about cancer clinical trials (OR 4.94, 95% CI 1.39-17.56). Collectively, YouTube clinical trial videos

  16. Who Uses the Internet as a Source of Nutrition and Dietary Information? An Australian Population Perspective.

    Science.gov (United States)

    Pollard, Christina Mary; Pulker, Claire Elizabeth; Meng, Xingqiong; Kerr, Deborah Anne; Scott, Jane Anne

    2015-08-26

    The Internet contains a plethora of nutrition information. Health organizations are increasingly using the Internet to deliver population-wide health information and interventions. Effective interventions identify their target population and their needs; however, little is known about use of the Internet as a source of nutrition information. The aim was to assess the change in prevalence and demographic characteristics of Western Australian adults accessing the Internet as a source of nutrition information and identify specific information needs. Data were pooled from the Western Australian Department of Health's 3-yearly Nutrition Monitoring Survey Series telephone survey between 1995 and 2012 of 7044 participants aged 18 to 64 years. Outcome variables were the main sources of nutrition information used in the last year and yes/no responses to 4 suggestions to what would make it easier to eat a healthy diet. Sociodemographic variables were collected. The proportion of respondents using the Internet for nutrition information increased from Internet for this information increased significantly in 2009 (OR 2.84, 95% CI 2.07-3.88) and 2012 (OR 5.20, 95% CI 3.86-7.02, PInternet as a source were more likely to be female (OR 1.30, 95% CI 1.05-1.60, P=.02), live in a metropolitan area (OR 1.26, 95% CI 1.03-1.54, P=.03), born in countries other than Australia/UK/Ireland (OR 1.41, 95% CI 1.07-1.85, P=.02), more educated (university: OR 2.46, 95% CI 1.77-3.42, PInternet for nutrition information were more likely than nonusers to want to know quicker ways to prepare healthy foods (83.0% vs 78.1%, P=.005) and information on choosing healthy foods (76.3% vs 67.3%, PUse of the Internet as a main source of nutrition information has grown rapidly since 2004; one-third of Western Australian adults reported using the Internet for this purpose in 2012. Information on preparing healthy foods (ideas, quicker ways), choosing ingredients, and knowing more about cooking would make it

  17. Who Uses the Internet as a Source of Nutrition and Dietary Information? An Australian Population Perspective

    Science.gov (United States)

    2015-01-01

    Background The Internet contains a plethora of nutrition information. Health organizations are increasingly using the Internet to deliver population-wide health information and interventions. Effective interventions identify their target population and their needs; however, little is known about use of the Internet as a source of nutrition information. Objective The aim was to assess the change in prevalence and demographic characteristics of Western Australian adults accessing the Internet as a source of nutrition information and identify specific information needs. Methods Data were pooled from the Western Australian Department of Health’s 3-yearly Nutrition Monitoring Survey Series telephone survey between 1995 and 2012 of 7044 participants aged 18 to 64 years. Outcome variables were the main sources of nutrition information used in the last year and yes/no responses to 4 suggestions to what would make it easier to eat a healthy diet. Sociodemographic variables were collected. Results The proportion of respondents using the Internet for nutrition information increased from Internet for this information increased significantly in 2009 (OR 2.84, 95% CI 2.07-3.88) and 2012 (OR 5.20, 95% CI 3.86-7.02, PInternet as a source were more likely to be female (OR 1.30, 95% CI 1.05-1.60, P=.02), live in a metropolitan area (OR 1.26, 95% CI 1.03-1.54, P=.03), born in countries other than Australia/UK/Ireland (OR 1.41, 95% CI 1.07-1.85, P=.02), more educated (university: OR 2.46, 95% CI 1.77-3.42, PInternet for nutrition information were more likely than nonusers to want to know quicker ways to prepare healthy foods (83.0% vs 78.1%, P=.005) and information on choosing healthy foods (76.3% vs 67.3%, PInternet as a main source of nutrition information has grown rapidly since 2004; one-third of Western Australian adults reported using the Internet for this purpose in 2012. Information on preparing healthy foods (ideas, quicker ways), choosing ingredients, and knowing more

  18. Tools for Trade Analysis and Open Source Information Monitoring for Non-proliferation

    International Nuclear Information System (INIS)

    Cojazzi, G.G.M.; Versino, C.; Wolfart, E.; Renda, G.; Janssens, W.A.M.; )

    2015-01-01

    The new state level approach being proposed by IAEA envisions an objective based and information driven safeguards approach utilizing all relevant information to improve the effectiveness and efficiency of safeguards. To this goal the IAEA makes also use of open source information, here broadly defined as any information that is neither classified nor proprietary. It includes, but is not limited to: media sources, government and non-governmental reports and analyzes, commercial data, and scientific/technical literature, including trade data. Within the EC support programme to IAEA, JRC has surveyed and catalogued open sources on import-export customs trade data and developed tools for supporting the use of the related databases in safeguards. The JRC software The Big Table, (TBT), supports i.a.: a) the search through a collection of reference documents relevant to trade analysis (legal/regulatory documents, technical handbooks); b) the selection of items of interests to specific verifications and c) the mapping of these items to customs commodities searchable in trade databases. In the field of open source monitoring, JRC is developing and operating a ''Nuclear Security Media Monitor'' (NSMM), which is a web-based multilingual news aggregation system that automatically collects news articles from pre-defined web sites. NSMM is a domain specific version of the general JRC-Europe Media Monitor (EMM). NSMM has been established within the EC support programme with the aim, i.e., to streamline IAEA's process of open source information monitoring. In the first part, the paper will recall the trade data sources relevant for non-proliferation and will then illustrate the main features of TBT, recently coupled with the IAEA Physical Model, and new visualization techniques applied to trade data. In the second part it will present the main aspects of the NSMM also by illustrating some of uses done at JRC. (author)

  19. Isolated and Skeptical: Social Engagement and Trust in Information Sources Among Smokers

    OpenAIRE

    Finney Rutten, Lila J.; Blake, Kelly; Hesse, Bradford W.; Ackerson, Leland K.

    2011-01-01

    Our study compared indicators of social engagement and trust among current, former, and never smokers. Multinomial regression analyses of data from the 2005 U.S. Health Information National Trends Survey (n=5586) were conducted to identify independent associations between social engagement, trust in health information sources, and smoking status. Never smokers (odds ratio (OR)=2.08) and former smokers (OR=2.48) were significantly more likely to belong to community organizations than current s...

  20. The Efficacy of Social Media as a Research Tool and Information Source for Safeguards Verification

    International Nuclear Information System (INIS)

    Skoeld, T.; Feldman, Y.

    2015-01-01

    The IAEA Department of Safeguards aims to provide credible assurances to the international community that States are fulfiling their safeguards obligations in that all nuclear material remains in peaceful use. In order to draw a soundly-based safeguards conclusion for a State that has a safeguards agreement in force with the IAEA, the Department establishes a knowledge base of the State's nuclear-related infrastructure and activities against which a State's declarations are evaluated for correctness and completeness. Open source information is one stream of data that is used in the evaluation of nuclear fuel cycle activities in the State. The Department is continuously working to ensure that it has access to the most up-to-date, accurate, relevant and credible open source information available, and has begun to examine the use of social media as a new source of information. The use of social networking sites has increased exponentially in the last decade. In fact, social media has emerged as the key vehicle for delivering and acquiring information in near real-time. Therefore, it has become necessary for the open source analyst to consider social media as an essential element in the broader concept of open source information. Characteristics, such as ''immediacy'', ''recency'', ''interractiveness'', which set social networks apart from the ''traditional media'', are also the same attributes that present a challenge for using social media as an efficient information-delivery platform and a credible source of information. New tools and technologies for social media analytics have begun to emerge to help systematically monitor and mine this large body of data. The paper will survey the social media landscape in an effort to identify platforms that could be of value for safeguards verification purposes. It will explore how a number of social networking sites, such as Twitter

  1. Changing effects of direct-to-consumer broadcast drug advertising information sources on prescription drug requests.

    Science.gov (United States)

    Lee, Annisa Lai

    2009-06-01

    This study tracks the changes of the effects of 4 information sources for direct-to-consumer drug advertising on patients' requests for prescription drugs from physicians since the inception of the "Guidance for Industry about Consumer-directed Broadcast Advertisements." The Guidance advises pharmaceuticals to use four information sources for consumers to seek further information to supplement broadcast drug advertisements: small-print information, the Internet, a toll-free number, and health-care providers (nurses, doctors, and pharmacists). Logistic models were created by using survey data collected by the Food and Drug Administration in 1999 and 2002. Results show that throughout the years, health-care providers remain the most used and strongest means associated with patients' direct requests for nonspecific and specific prescription drugs from doctors. The small-print information source gains power and changes from an indirect means associated with patients' discussing drugs with health-care providers to a direct means associated with patients' asking about nonspecific and specific drugs from their doctors. The Internet is not directly related to drug requests, but the effect of its association with patients seeking information from health-care providers grew 11-fold over the course of the study. The toll-free number lost its power altogether for both direct request for a prescription drug and further discussion with health-care providers. Patient demographics will be considered for specific policy implications.

  2. Effects of demographic factors and information sources on United States consumer perceptions of animal welfare.

    Science.gov (United States)

    McKendree, M G S; Croney, C C; Widmar, N J O

    2014-07-01

    As consumers have become more interested in understanding how their food is produced, scrutiny and criticism have increased regarding intensified food animal production methods. Resolution of public concerns about animal agricultural practices depends on understanding the myriad factors that provide the basis for concerns. An online survey of 798 U.S. households was conducted to investigate relationships between household characteristics (demographics, geographic location, and experiences) and level of concern for animal welfare as well as sources used to obtain information on the subject. Because recent media attention has focused on animal care practices used in the U.S. swine industry, respondents were also asked specific questions pertaining to their perceptions of pig management practices and welfare issues and their corresponding pork purchasing behavior. Respondents reporting higher levels of concern about animal welfare were more frequently female, younger, and self-reported members of the Democratic Party. Fourteen percent of respondents reported reduction in pork consumption because of animal welfare concerns with an average reduction of 56%. Over half of the respondents (56%) did not have a primary source for animal welfare information; those who identified a primary information source most commonly used information provided by animal protection organizations, the Humane Society of the United States (HSUS), and People for the Ethical Treatment of Animals (PETA). Midwest participants were significantly, at the 5% significance level, less concerned about domestic livestock animal welfare and more frequently reported not having a source for animal welfare information than those from other regions of the United States. Overall, the U.S. livestock and poultry industries and other organizations affiliated with animal agriculture appear to be less used public sources of information on animal welfare than popular animal protection organizations. Improved

  3. Advice on drug safety in pregnancy: are there differences between commonly used sources of information?

    Science.gov (United States)

    Frost Widnes, Sofia K; Schjøtt, Jan

    2008-01-01

    Safety regarding use in pregnancy is not established for many drugs. Inconsistencies between sources providing drug information can give rise to confusion with possible therapeutic consequences. Therefore, it is important to measure clinically important differences between drug information sources. The objective of this study was to compare two easily accessible Norwegian sources providing advice on drug safety in pregnancy - the product monographs in the Felleskatalog (FK), published by the pharmaceutical companies, and the five regional Drug Information Centres (DICs) in Norway - in addition to assessing the frequency of questions regarding drug safety in pregnancy made to the DICs according to the Anatomical Therapeutic Chemical (ATC) classification system. Advice on drug use in pregnancy provided by the DICs in 2003 and 2005 were compared with advice in the product monographs for the respective drugs in the FK. Comparison of advice was based on categorization to one of four categories: can be used, benefit-risk assessment, should not be used, or no available information. A total of 443 drug advice were categorized. Seven out of ten of drugs frequently enquired about, according to the ATC system, were drugs acting on the nervous system (group N). For 208 (47%) of the drugs, advice differed between the DICs and FK. Advice from the FK was significantly (p drugs that were newly introduced and those that had been on the market for a longer time, advice regarding use of drugs in the first trimester and advice regarding use of drugs in the second or third trimester, or between advice provided during 2003 and during 2005. The results of this study show considerable differences between two Norwegian sources providing advice on the use of drugs in pregnancy. Based on the knowledge that healthcare providers choose sources of information in a random manner, our results may be of clinical importance. We believe that the problem with heterogeneous drug information on this

  4. Vibratory response of a mirror support/positioning system for the Advanced Photon Source project at Argonne National Laboratory

    International Nuclear Information System (INIS)

    Basdogan, I.; Shu, Deming; Kuzay, T.M.; Royston, T.J.; Shabana, A.A.

    1996-01-01

    The vibratory response of a typical mirror support/positioning system used at the experimental station of the Advanced Photon Source (APS) project at Argonne National Laboratory is investigated. Positioning precision and stability are especially critical when the supported mirror directs a high-intensity beam aimed at a distant target. Stability may be compromised by low level, low frequency seismic and facility-originated vibrations traveling through the ground and/or vibrations caused by flow-structure interactions in the mirror cooling system. The example case system has five positioning degrees of freedom through the use of precision actuators and rotary and linear bearings. These linkage devices result in complex, multi-dimensional vibratory behavior that is a function of the range of positioning configurations. A rigorous multibody dynamical approach is used for the development of the system equations. Initial results of the study, including estimates of natural frequencies and mode shapes, as well as limited parametric design studies, are presented. While the results reported here are for a particular system, the developed vibratory analysis approach is applicable to the wide range of high-precision optical positioning systems encountered at the APS and at other comparable facilities

  5. Joint Source-Channel Decoding of Variable-Length Codes with Soft Information: A Survey

    Directory of Open Access Journals (Sweden)

    Pierre Siohan

    2005-05-01

    Full Text Available Multimedia transmission over time-varying wireless channels presents a number of challenges beyond existing capabilities conceived so far for third-generation networks. Efficient quality-of-service (QoS provisioning for multimedia on these channels may in particular require a loosening and a rethinking of the layer separation principle. In that context, joint source-channel decoding (JSCD strategies have gained attention as viable alternatives to separate decoding of source and channel codes. A statistical framework based on hidden Markov models (HMM capturing dependencies between the source and channel coding components sets the foundation for optimal design of techniques of joint decoding of source and channel codes. The problem has been largely addressed in the research community, by considering both fixed-length codes (FLC and variable-length source codes (VLC widely used in compression standards. Joint source-channel decoding of VLC raises specific difficulties due to the fact that the segmentation of the received bitstream into source symbols is random. This paper makes a survey of recent theoretical and practical advances in the area of JSCD with soft information of VLC-encoded sources. It first describes the main paths followed for designing efficient estimators for VLC-encoded sources, the key component of the JSCD iterative structure. It then presents the main issues involved in the application of the turbo principle to JSCD of VLC-encoded sources as well as the main approaches to source-controlled channel decoding. This survey terminates by performance illustrations with real image and video decoding systems.

  6. Joint Source-Channel Decoding of Variable-Length Codes with Soft Information: A Survey

    Science.gov (United States)

    Guillemot, Christine; Siohan, Pierre

    2005-12-01

    Multimedia transmission over time-varying wireless channels presents a number of challenges beyond existing capabilities conceived so far for third-generation networks. Efficient quality-of-service (QoS) provisioning for multimedia on these channels may in particular require a loosening and a rethinking of the layer separation principle. In that context, joint source-channel decoding (JSCD) strategies have gained attention as viable alternatives to separate decoding of source and channel codes. A statistical framework based on hidden Markov models (HMM) capturing dependencies between the source and channel coding components sets the foundation for optimal design of techniques of joint decoding of source and channel codes. The problem has been largely addressed in the research community, by considering both fixed-length codes (FLC) and variable-length source codes (VLC) widely used in compression standards. Joint source-channel decoding of VLC raises specific difficulties due to the fact that the segmentation of the received bitstream into source symbols is random. This paper makes a survey of recent theoretical and practical advances in the area of JSCD with soft information of VLC-encoded sources. It first describes the main paths followed for designing efficient estimators for VLC-encoded sources, the key component of the JSCD iterative structure. It then presents the main issues involved in the application of the turbo principle to JSCD of VLC-encoded sources as well as the main approaches to source-controlled channel decoding. This survey terminates by performance illustrations with real image and video decoding systems.

  7. The beam based alignment technique for the measurements of beam position monitors offsets and beam offsets from quadrupoles in the Pohang Light Source

    International Nuclear Information System (INIS)

    Kim, K.H.; Huang, J.Y.; Ko, I.S.

    1999-01-01

    The beam based alignment (BBA) technique is applied to the 2-GeV storage ring of the Pohang Light Source to measure the offsets of beam position monitors. This measurement is particularly necessary for beam position monitors (BPMs) plugged into a long (∼10 m) aluminum chamber, since the mechanical deformation of the vacuum chamber is experienced after repeated heating for the outgassing process, and the BPM positions are changed accordingly. A part of the excitation current of each quadrupole magnet is shunted through an electronic shunt circuit. Then, the closed orbit receives a perturbation due to the current reduction. Using two quadrupole magnets, we can measure the offset of each BPM. Also, the BBA technique is applied to measure the beam offsets from the center of quadrupole magnets, and gives information to the survey team about which quadrupole magnets should be aligned mostly. In this process, we introduce the merit function to reduce various errors such as BPM characteristic changes and the lattice imperfection. By minimizing the merit function, we can get the beam offset as the maximized expectation value. This paper presents the BBA technique used and experimental results taken from the 2-GeV Pohang Light Source (PLS) storage ring. When the BPM offset is measured, it is observed that a 3% of the shunt current is suitable. (author)

  8. PASSIM – an open source software system for managing information in biomedical studies

    Directory of Open Access Journals (Sweden)

    Neogi Sudeshna

    2007-02-01

    Full Text Available Abstract Background One of the crucial aspects of day-to-day laboratory information management is collection, storage and retrieval of information about research subjects and biomedical samples. An efficient link between sample data and experiment results is absolutely imperative for a successful outcome of a biomedical study. Currently available software solutions are largely limited to large-scale, expensive commercial Laboratory Information Management Systems (LIMS. Acquiring such LIMS indeed can bring laboratory information management to a higher level, but often implies sufficient investment of time, effort and funds, which are not always available. There is a clear need for lightweight open source systems for patient and sample information management. Results We present a web-based tool for submission, management and retrieval of sample and research subject data. The system secures confidentiality by separating anonymized sample information from individuals' records. It is simple and generic, and can be customised for various biomedical studies. Information can be both entered and accessed using the same web interface. User groups and their privileges can be defined. The system is open-source and is supplied with an on-line tutorial and necessary documentation. It has proven to be successful in a large international collaborative project. Conclusion The presented system closes the gap between the need and the availability of lightweight software solutions for managing information in biomedical studies involving human research subjects.

  9. Information Sources on U. S. Radio Regulations in the Law Library.

    Science.gov (United States)

    Lockwood, James D.

    An annotated bibliography gives the radio regulations in the U.S., using sources available in the University of Michigan Law Library as well as the University of Michigan Libraries. Information is applicable to other law, university and public libraries. Relevant material on television regulations is included. Listings cover federal agencies, card…

  10. Smoking, information sources, and risk perception. New evidence on Swedish data

    NARCIS (Netherlands)

    Lundborg, N.

    2007-01-01

    Using data on Swedish adolescents, this study examines (1) perceptions of the addictiveness and mortality risk of smoking, (2) the effects of these perceptions on smoking behaviour, and (3) the role of various smoking risk information sources. The average respondent believed that 46 out of 100

  11. Correlated Sources in Distributed Networks--Data Transmission, Common Information Characterization and Inferencing

    Science.gov (United States)

    Liu, Wei

    2011-01-01

    Correlation is often present among observations in a distributed system. This thesis deals with various design issues when correlated data are observed at distributed terminals, including: communicating correlated sources over interference channels, characterizing the common information among dependent random variables, and testing the presence of…

  12. Use and perceptions of information among family physicians: sources considered accessible, relevant, and reliable.

    Science.gov (United States)

    Kosteniuk, Julie G; Morgan, Debra G; D'Arcy, Carl K

    2013-01-01

    The research determined (1) the information sources that family physicians (FPs) most commonly use to update their general medical knowledge and to make specific clinical decisions, and (2) the information sources FPs found to be most physically accessible, intellectually accessible (easy to understand), reliable (trustworthy), and relevant to their needs. A cross-sectional postal survey of 792 FPs and locum tenens, in full-time or part-time medical practice, currently practicing or on leave of absence in the Canadian province of Saskatchewan was conducted during the period of January to April 2008. Of 666 eligible physicians, 331 completed and returned surveys, resulting in a response rate of 49.7% (331/666). Medical textbooks and colleagues in the main patient care setting were the top 2 sources for the purpose of making specific clinical decisions. Medical textbooks were most frequently considered by FPs to be reliable (trustworthy), and colleagues in the main patient care setting were most physically accessible (easy to access). When making specific clinical decisions, FPs were most likely to use information from sources that they considered to be reliable and generally physically accessible, suggesting that FPs can best be supported by facilitating easy and convenient access to high-quality information.

  13. Financial Information Source, Knowledge, and Practices of College Students from Diverse Backgrounds

    Science.gov (United States)

    Mimura, Yoko; Koonce, Joan; Plunkett, Scott W.; Pleskus, Lindsey

    2015-01-01

    Using cross-sectional data, we examined the financial information sources, financial knowledge, and financial practices of young adults, many of whom are first generation college students, ethnic minorities, and immigrants or children of immigrants. Participants (n = 1,249) were undergraduate students at a large regional comprehensive university.…

  14. Using Psychodynamic Interaction as a Valuable Source of Information in Social Research

    DEFF Research Database (Denmark)

    Schmidt, Camilla

    2012-01-01

    This article will address the issue of using understandings of psychodynamic interrelations as a means to grasp how social and cultural dynamics are processed individually and collectively in narratives. I apply the two theoretically distinct concepts of inter- and intrasubjectivity to gain insight...... are valuable sources of information in understanding the process of becoming a social educator....

  15. The use of radio and television as sources of agricultural information ...

    African Journals Online (AJOL)

    This study examined the use of radio and television as sources of agricultural information among poultry farmers in Egbeda Local Government area of Oyo State. Sixty farmers from 4 villages namely: Egbeda, Erunmu, Olode and Owobale were selected for this study. Primary data were collected from the respondents by ...

  16. Anterior cruciate ligament injury: Identifying information sources and risk factor awareness among the general population.

    Directory of Open Access Journals (Sweden)

    Yasuharu Nagano

    Full Text Available Raising awareness on a disorder is important for its prevention and for promoting public health. However, for sports injuries like the anterior cruciate ligament (ACL injury no studies have investigated the awareness on risk factors for injury and possible preventative measures in the general population. The sources of information among the population are also unclear. The purpose of the present study was to identify these aspects of public awareness about the ACL injury.A questionnaire was randomly distributed among the general population registered with a web based questionnaire supplier, to recruit 900 participants who were aware about the ACL injury. The questionnaire consisted of two parts: Question 1 asked them about their sources of information regarding the ACL injury; Question 2 asked them about the risk factors for ACL injury. Multivariate logistic regression was used to determine the information sources that provide a good understanding of the risk factors.The leading source of information for ACL injury was television (57.0%. However, the results of logistic regression analysis revealed that television was not an effective medium to create awareness about the risk factors, among the general population. Instead "Lecture by a coach", "Classroom session on Health", and "Newspaper" were significantly more effective in creating a good awareness of the risk factors (p < 0.001.

  17. The Role of External Sources of Information in Children's Evaluative Food Categories

    Science.gov (United States)

    Nguyen, Simone P.

    2012-01-01

    Evaluative food categories are value-laden assessments, which reflect the healthfulness and palatability of foods (e.g. healthy/unhealthy, yummy/yucky). In a series of three studies, this research examines how 3- to 4-year-old children (N?=?147) form evaluative food categories based on input from external sources of information. The results…

  18. Sources of Malaria Information among Pregnant Women in Ebonyi State and Implications for Malaria Health Education

    Science.gov (United States)

    Amari-Omaka, Lois Nnenna; Obande-Ogbuinya, Nkiru Edith

    2016-01-01

    The purpose of this study was to determine sources of malaria information among pregnant women in Ebonyi state and implications for malaria education. The cross sectional research design was adopted and stratified sampling technique was used to select a total of five hundred and four (504) pregnant women from 12 hospitals in the state. A self…

  19. Designing for dynamic diversity: Representing various senior citizens in digital information sources

    NARCIS (Netherlands)

    Loos, E.

    2013-01-01

    This article discusses how we can ensure that various senior citizens (women and men, living alone or together, full of vitality or in fragile health, coming from different cultural backgrounds) can identify with images representing themselves so they continue to have access to information sources

  20. Health Literacy, Health Disparities, and Sources of Health Information in U.S. Older Adults.

    Science.gov (United States)

    Cutilli, Carolyn Crane; Simko, Lynn C; Colbert, Alison M; Bennett, Ian M

    Low health literacy in older adults has been associated with poor health outcomes (i.e., mortality, decreased physical and cognitive functioning, and less preventive care utilization). Many factors associated with low health literacy are also associated with health disparities. Interaction with healthcare providers and sources of health information are influenced by an individual's health literacy and can impact health outcomes. This study examined the relationships between health literacy, sources of health information, and demographic/background characteristics in older adults (aged 65 years and older) related to health literacy and disparities. This descriptive, correlational study is a secondary analysis of the 2003 National Assessment of Adult Literacy, a large-scale national assessment. Older adults with lower health literacy have less income and education, rate their health as poor or fair, have visual or auditory difficulties, need help filling out forms, reading newspaper, or writing notes, and use each source of health information less (print and nonprint). Many of these characteristics and skills are predictive of health literacy and associated with health disparities. The results expand our knowledge of characteristics associated with health literacy and sources of health information used by older adults. Interventions to improve health outcomes including health disparities can focus on recognizing and meeting the health literacy demands of older adults.