3,860 research outputs found

    Investigation of resin systems for improved ablative materials Interim report, 10 Jan. - 1 Jul. 1966

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    Preparation, and evaluation of polyimide sulfone resins, graphite-silica reinforced polyamide resins, and resin resistance to FLOX- methane, and fluorine-hydrogen fuel

    Household survey of injuries in a Kenyan District

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    Objective: To determine the pattern and burden of injuries, their causes and action taken in a rural and urban community in Kenya.Design: Household interview survey and focus group discussions.Setting: Four rural villages and five urban clusters in Kiambu District, Kenya.Subjects: A total of 1,980 members of 200 rural and 230 urban households.Results: The number of reported injuries was 495, corresponding to 300,000 injuries per 100,000 people per year. Most common were cut or piercing (38.4%), followed by fall (16.2%), burn or scald (14.3%), animal bite or kick (10.1%), hit by moving object (5.9%) androad traffic accident (3.6%). Poisoning, sub-mersion/drowning and explosion were uncommon, each below three per cent. Of all reported injuries, 149 (30.1%) sought care from traditional healers, 91 (18.4%) were subject to self-care, 76 (15.4%) obtained service from drug shops, 22 (4.4%) were brought to a health facility for attention and 17 (3.4%) took no action at all. Additional information was obtained through focus group discussions with students, teachersand members of women groups. These generated detailed information about cases of sexual assault within and outside households which had not been captured during the previous household interviews.Conclusion: Injuries are very common but most of them are mild, prompting only home care or no action at all. Only one out of 25 injuries were brought to a health facility for attention. Some types of injury, such as domestic violence and sexual assault, are more likely to becaptured through focus group discussions than during household interviews. A combination of methods is likely to best reflect the pattern of injury at community level

    Literature Search Strategy Week: Judy Nordberg and Nancy Harger on Citation Management

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    Blog post to AEA365, a blog sponsored by the American Evaluation Association (AEA) dedicated to highlighting Hot Tips, Cool Tricks, Rad Resources, and Lessons Learned for evaluators. The American Evaluation Association is an international professional association of evaluators devoted to the application and exploration of program evaluation, personnel evaluation, technology, and many other forms of evaluation. Evaluation involves assessing the strengths and weaknesses of programs, policies, personnel, products, and organizations to improve their effectiveness

    Comparison of the beta-alpha angular correlations in the Li8 and B8 beta decays, and the conserved vector current theory

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    This paper describes a comparison of the beta-alpha angular correlations of the beta decays of Li8 and B8 to the 2.90-Mev alpha-unstable level of Be8. The data were fitted to an angular correlation in the laboratory system of the form W(θβα)=1+Acosθβα+Bcos2θβα, where A and B were independently determined for the Li8 and B8 beta decays from measurements at θβα=0°, 90°, and 180°. The coefficients A are due to the recoil of Be8* and have the same sign for both beta decays. The coefficients B arise from the interference of forbidden vector matrix elements with the allowed axial vector matrix element and have different signs in the two decays. The correlation for the Li8 decay was measured with average total beta energies, Wβ~5, 8, and 11 Mev. Both A and B were found to be approximately linear in Wβ. The correlation for the B8 decay was measured only with average Wβ~11 Mev. From the data with Wβ~11 Mev, the difference of the coefficients, B(Li8)-B(B8), equals (0.0070±0.0012)Wβ. This result is compared with theoretical predictions based on the older Fermi and the newer conserved vector current theories of beta decay. The experiment agrees with the prediction of the latter theory

    New Partnerships for a New Generation

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    Objective:This poster will demonstrate how partnering with civic and community organizations to host a traveling exhibit helps the library reach beyond its primary clientele to: 1) heighten awareness of the historical roles of women physicians, 2) encourage young women to enter the medical fields, 3) promote medical librarians and library services, and 4) increase visibility of the medical school. Method:In the summer of 2004, a core group of library staff gathered to prepare the application to host the ALA/NLM traveling exhibit, “Changing the Face of Medicine: Celebrating America’s Women Physicians.” Once selected as a host site, the group reached out to a diverse mix of academic and administrative staff from across the Medical School, as well as members of the local community. This group became the formal steering committee to plan programming to accompany the exhibit, helping meet the educational and promotional goals set forth in the initial application. Some outreach events included movie nights at the public library, an essay contest for grade school students, a career day with Girl Scouts, a review of research in women’s health (WHI), etc. Promotional methods/vehicles included “save the date” postcards, flyers, posters, and coverage through area radio, television, and newspapers. Results:Seventeen events were held in conjunction with the Library’s hosting of the exhibit. During the six-week period, approximately 60,000 individuals visited the Library, more than 750 specifically devoted to viewing the display. Two hundred people from the medical school community and the public at large attended the opening ceremony, 100 area Girl Scout members participated in multiple educational events, local middle and high school students took part in an essay contest, and more than 100 people attended book signings, film screenings, and a dramatic performance about Elizabeth Blackwell. Six groups provided financial support of the exhibit, totaling more than $7,000. Conclusion:The exhibit encouraged new experiences for Library staff including collaboration, marketing and outreach to a wider audience. It introduced many first-time Library visitors to a valued local resource, helped develop relationships between medical school students and the public, and introduced a different and important historical perspective on medicine to all. Presented at the Medical Library Association Annual Meeting on May 20, 2007, in Philadelphia, PA

    Trends in Health Sciences Library and Information Science Research

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    Objective: Determine if the profession of health librarianship has matured over recent years as defined by the level of sophistication found in the published research in the leading peer-reviewed, professional journal. Method: A content analysis of research articles published in Bulletin of the Medical Library Association and Journal of the Medical Library Association during the time span of 1991-2007 will be performed. For those articles that are classified as research, the subjects, research methodologies and analytical techniques employed will be identified, as well as bibliometric characteristics, institutional affiliation, and research funding source. The data will be analyzed using descriptive and quantitative inferential statistics to identify trends and/or gaps in the literature. The subject, research method, and analytical classification schema used throughout the study will be based on the work of Alexandra Dimitroff. Results & Conclusion: Preliminary findings reflect articles published from 1991-1996 (n = 310). Forty six percent of the articles reviewed were defined as research. The most predominant research methodology employed was survey (47%) and the most prevalent techniques used to analyze findings were quantitative descriptive statistics (62%). Studies examining subjects related to library users accounted for the greatest number of published research articles (20%), followed in popularity by public services (15%), and materials and/or collection development (9%). Sixty five percent of articles were authored by individuals affiliated with an academic health sciences library. The majority of studies (65%) stated no funding source, while 17% reported government support for the research carried out. New areas of research observed to date include consumer health, outreach, and the internet; an emerging research method is focus groups. Additional data on the findings will be presented in May. Presented at the Medical Library Association Annual Meeting on May 19, 2008, in Chicago, IL

    Trends in health sciences library and information science research: an analysis of research publications in the \u3cem\u3eBulletin of the Medical Library Association\u3c/em\u3e and \u3cem\u3eJournal of the Medical Library Association\u3c/em\u3e from 1991 to 2007

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    OBJECTIVE: This study analyzed trends in research activity as represented in the published research in the leading peer-reviewed professional journal for health sciences librarianship. METHODOLOGY: Research articles were identified from the Bulletin of the Medical Library Association and Journal of the Medical Library Association (1991-2007). Using content analysis and bibliometric techniques, data were collected for each article on the (1) subject, (2) research method, (3) analytical technique used, (4) number of authors, (5) number of citations, (6) first author affiliation, and (7) funding source. The results were compared to a previous study, covering the period 1966 to 1990, to identify changes over time. RESULTS: Of the 930 articles examined, 474 (51%) were identified as research articles. Survey (n = 174, 37.1%) was the most common methodology employed, quantitative descriptive statistics (n = 298, 63.5%) the most used analytical technique, and applied topics (n = 332, 70%) the most common type of subject studied. The majority of first authors were associated with an academic health sciences library (n = 264, 55.7%). Only 27.4% (n = 130) of studies identified a funding source. CONCLUSION: This study\u27s findings demonstrate that progress is being made in health sciences librarianship research. There is, however, room for improvement in terms of research methodologies used, proportion of applied versus theoretical research, and elimination of barriers to conducting research for practicing librarians

    Double quantum dot with tunable coupling in an enhancement-mode silicon metal-oxide semiconductor device with lateral geometry

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    We present transport measurements of a tunable silicon metal-oxide-semiconductor double quantum dot device with lateral geometry. Experimentally extracted gate-to-dot capacitances show that the device is largely symmetric under the gate voltages applied. Intriguingly, these gate voltages themselves are not symmetric. Comparison with numerical simulations indicates that the applied gate voltages serve to offset an intrinsic asymmetry in the physical device. We also show a transition from a large single dot to two well isolated coupled dots, where the central gate of the device is used to controllably tune the interdot coupling.Comment: 4 pages, 3 figures, to be published in Applied Physics Letter
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