1,221 research outputs found

    The Data Librarian\u27s Handbook

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    An Investigation of the Backgrounds of Health Sciences Librarians

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    The purpose of this study was to investigate the educational and professional backgrounds of health sciences librarians currently working in the U.S. and Canada. A survey consisting of 15 questions was created using the software program Qualtrics. 389 total surveys were received. Respondents reported having a wide variety of educational and professional backgrounds. Only about 22% of respondents reported having health sciences work experience prior to entering the field. Recruitment into the field of health sciences librarianship should take a broad approach, and professional development efforts should appeal to a wide array of experience levels

    Genetics Home Reference: A Review

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    Genetics Home Reference is a free, online resource created and maintained by the National Library of Medicine. It is designed to provide genetic information to a wide variety of audiences, particularly the general public. The site consists of original information and links to other curated resources

    Photodissociation Dynamics of the Iodine-Arene Charge-Transfer Complex

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    The photodissociation reaction of the molecular iodine:arene charge-transfer (CT) complex into an iodine atom and an iodine atom-arene fragment has been investigated using femtosecond pump-probe, resonance Raman, and molecular dynamics simulations. In the condensed phase the reaction proceeds on a time scale of less than 25 fs, in sharp contrast to the gas phase where the excited state lifetime of the complex is about 1 ps. Since little CT resonance enhancement is found in Raman studies on the I2-stretch vibration, it is concluded that rapid curve crossing occurs from the CT state to a dissociative surface. Of particular interest is the finding that the polarization anisotropy of the iodine atom:arene (I:ar) photoproduct decays on a time scale of 350 fs both in pure arene solvents as well as in mixed arene/cyclohexane solutions. This latter finding rules out that secondary I:ar complex formation is the main cause of this ultrafast depolarization effect. The initial polarization anisotropy is found to be ~0.12 in pure mesitylene and ~0.34 in mixed mesitylene/cyclohexane solutions. Semiempirical configuration-interaction calculations show that, except for the axial CT complex, the transition dipole is aligned almost parallel to the normal of the arene plane. The oscillator strength of the CT transition is found to be maximal in the oblique conformation with the I2 molecule positioned at an angle of about 30° with respect to the arene normal. This iodine angular dependence of the oscillator strength leads to photoselection of bent I2:ar complexes in pump-probe experiments. Molecular dynamics simulations confirm earlier findings that the I2:benzene complex is a fragile entity and that it persists only for a few hundred femtoseconds. These simulations also provide the proper time scale for the decay of the polarization anisotropy. The fact that the photoproduct experiences a substantial torque in the dissociation process explains the absence of a cage effect in this reaction.

    Pengaruh Las Tahanan Listrik terhadap Kekuatan Mekanis Pipa Baja Api 5l – X52 ( 24” X 12.70 Mm )

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    Peranan teknologi pengelasan dalam mendukung berbagai sektor industri terutama dalam bidang fabrikasi dirasakan semakin meningkat dimasa-masa mendatang. Hal ini dirasakan dengan semakin meningkatnya permintaan terhadap berbagai jenis kontruksi dengan persyaratan kualitas semakin tinggi. Maka untuk meningkatkan kualitas dibutuhkan syarat mutu baik bahan baku yang berkualitas maupun proses produksi dengan teknologi yang canggih dan sumber daya manusia yang terampil.Mutu sambungan las biasanya diukur dari komposisi kimia dari logam, kekuatan dan keuletan serta struktur mikro yang terbentuk pada sambungan las.untuk melakukan pengelasan yang berkwalitas tinggi PT. BAKRIE PIPIE INDUSTRIES menggunakan metode Pengelasan Kampuh Kontinyu ( Continuous Seam Welding ) dan untuk mengetahui kekuatan dari pipa baja API 5L X-52 ( 24” X 12.70mm) maka dilakukan pengujian yang meliputi : Pengujian Tarik, Kekerasan metode Vickers dan Struktur Mikro dengan membandingkan kekuatan daerah HAZ dan Base Metal serta Fusion Line sesuai dengan standar yang telah ditetapkan.Berdasarkan pengujian secara keseluruhan, menunjukkan bahwa data hasil pengujian sesuai standar. Untuk pengujian tarik menunjukkan bahwa Kuat Tarik daerah Weld lebih tinggi dari Transe ini dikarenakan Post Weld Heat - treatment, ( perlakuan panas setelah pengelasan ) sangat efktif. Untuk pengujian kekerasan daerah Base Metal yang paling keras, karena tidak terkena perlakuan panas

    Shear Stress Measurements of Non-Spherical Particles in High Shear Rate Flows

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    The behavior of liquid-solid flows varies greatly depending on fluid viscosity; particle and liquid inertia; and collisions and near-collisions between particles. Shear stress measurements were made in a coaxial rheometer with a height to gap ratio (b/r0) of 11.7 and gap to outer radius ratio (h/b) of 0.166 that was specially designed to minimize the effects of secondary flows. Experiments were performed for a range of Reynolds numbers, solid fractions and ratio of particle to fluid densities. With neutrally buoyant particles, the dimensional shear stress exhibits a linear dependence on Reynolds number: the slope is monotonic but a non-linear function of the solid fraction. Though non-neutrally buoyant particles exhibit a similar linear dependence at higher Reynolds numbers, at lower values the shear stress exhibits a non-linear behavior in which the stress increases with decreasing Reynolds number due to particle settling

    Leveraging Survey Results In Support of a Library Renovation: A Case Study

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    The Health Sciences Library (HSL) at Stony Brook University along with the School of Medicine were motivated to make improvements in seating and hours based on survey results from an LCME self-study. Preparation for the site visit from the Liaison Committee for Medical Education helped to garner resources and support for this initiative. To meet the evolving needs of the HSL patrons, librarians completed an overdue collection assessment project which allowed for 142 new seats, including newly designed spaces and furnishings. Ongoing assessment of the redesigned space will be conducted to evaluate success and areas for continued improvement

    A partnership between academic and public librarians: “What the Health” workshop series

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    Background: Public librarians are in a unique position to assist the general public with health information inquiries. However, public librarians might not have the training, detailed knowledge, and confidence to provide high-quality health information. Case Presentation: The authors created and delivered three workshops to public librarians in Suffolk County, New York, highlighting several National Library of Medicine resources. Each workshop focused on a different topic: general consumer health resources, genetics health resources, and environmental/toxicology resources. At the end of each workshop, participants were asked to complete the Training Session Evaluation form provided by the National Network of Libraries of Medicine (NNLM). All participants reported that they learned a new skill or about a new tool, that their ability to locate online health information improved, and that they planned to use the knowledge they gained in the future. Online tutorials covering the major resources from each workshop were created and made accessible to the public on several organizations’ websites. Virtual reference services were initiated for public librarians who need further assistance with these resources and will continue to be provided on an ongoing basis. Financial support for the equipment and software utilized in each of these tasks was awarded by NNLM. Conclusions: Based on attendance and participant feedback, this model of health information outreach appears to have been successful in furthering the educational needs of public librarians and may be useful to others in creating a similar program in their communities
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