10,226 research outputs found

    Teaching Patrons to Fish: The Educational Value of Cancelling Requests for Locally Available Materials

    Get PDF
    Expansive document delivery service for locally available materials is becoming increasingly popular, but is a learning component lost with the implementation of this service? In this study, the authors compare data from two institutions, one that provides an unadvertised document delivery service without instruction, and another that cancels requests for locally available materials with an instructional component. The behavior of each institution\u27s patrons over a 4-year period is analyzed and found to differ at statistically significant levels. These findings will be useful for interlibrary loan policy makers who are considering whether to implement document delivery for locally available items

    Analytical usability evaluation for digital libraries: A case study

    Get PDF

    Assessing parental risk in parenting plan (child custody) evaluation cases involving internet sexual behavior

    Get PDF
    One type of claim in parenting assessment (child custody)1 cases is that one parent, typically the father, is alleged to be engaging in improper or compulsive sexual behavior via the Internet. The sexual behavior at issue can range from frequent sexually explicit chats with other adults to compulsive viewing of adult pornography. In more extreme cases, the problematic behavior may involve viewing child pornography, and in some cases the parent faces actual criminal charges in this regard. The present article reviews the current scientific knowledge base for evaluation of risk in such parenting evaluation cases and provides some guidelines and recommendations for an evaluator in the assessment process

    The search for the Dark Vector Boson via the Higgs Portal

    Get PDF
    Abstract: The Standard Model (SM) is known to be incomplete. The introduction of a Dark Sector via an additional U(1)D gauge symmetry added to the SM Lagrangian provides a mechanism to introduce much needed new physics without perturbing the already excellent agreement between the SM theoretical description and the Electroweak Precision Observables (EWPO) experimental constraints. The model has a dark vector boson Zd which can mix with the hypercharge gauge boson with the coupling . This opens the Hypercharge Portal which can mediate the fluctuation of a Z to a Zd, or the decay of the Zd to SM leptons. If a dark Higgs singlet s also exists, this then breaks the U(1)D, opening the Higgs portal and also allowing for Higgs mass mixing between the SM and dark sectors, described by the Higgs mass mixing parameter, k. Including dark fermionic fields in the Lagrangian allows for long-lived cold Dark Matter candidates. The various connections between the Dark and SM sectors allow descriptions of many key astro-physical phenomena. The Model is therefore a fascinating candidate for new physics beyond the SM. It becomes crucial to search for experimental signatures of this model. This contribution discusses a search for the dark force boson Zd using its production via the Higgs Portal and its decay back to SM leptons: H hd ZdZd 4l. The results from ATLAS Run 1 and the further development of the search for Run 2 are presented

    Trichinosis in the Arctic: A Review

    Get PDF
    Survey of reports and correspondence concerning occurrence of the parasitic roundworm Trichinella, especially in the dog and polar bear of arctic regions; with notes on its life cycle; and a bibliography (17 items)

    The search for crystal undulator radiation

    Get PDF
    Abstract: The channelling phenomenon applies to the correlated motion of charged particles within a crystal lattice in a direction closely aligned with atomic rows (strings) or crystal planes. When the incident charge particle is highly relativistic, the emitted channeling radiation is boosted by a factor of γ2, where γ is the Lorentz factor. Bremsstrahlung may also be coherent for these conditions, and coherent enhancement leads to both quasi monoenergetic peaks and also significant increases in intensity as compared to the normal process. In the special condition that the crystal is periodically bent, such as in a periodic superlattice, one may also have undulator radiation. All of these phenomena are potential sources of MeV and GeV range intense gamma radiation. The latter phenomenon is proposed as potentially the most important source of monochromatic high energy photons. In principle it can also lead to coherent radiation based on the Free Electron Laser (FEL) principle with intensities similar to an extrapolation of what may be obtained at modern light sources. In this contribution we describe a search for crystal undulator radiation using 2.5 – 6.0 GeV positrons incident on a diamond crystal undulator. The experiments were performed at the T9 Beam-line of the Proton Synchrotron at CERN. The experiment was the result of a winning proposal for the 2015 CERN Beam-line for Schools Competition

    Relationships between contacts Lauderdale County, Tennessee homemakers had with Extension and their use of recommended clothing practices

    Get PDF
    The purpose of this study was to characterize Lauderdale County homemakers as to their use of recommended clothing consumer practices, number of Extension contacts, sources of clothing information. Home Demonstration Club membership, sewing for self and/or family and the relationships between these variables. Sixty homemakers were randomly selected and personal interviews were conducted by County Extension agents. Those interviewed included 24 general homemakers, 18 Home Demonstration Club members, 11 Tennessee State University homemakers and 7 4-H parents. Interview schedules were developed by the University of Tennessee Extension Clothing Specialist, Helen Rader. Agents conducted the interviews during Fall of 1982 and Winter of 1983. The data were coded and punched on computer cards, and computations were made by the University of Tennessee Computing Center. Statistical tests used to determine the strength of relationships between variables as well as the significant levels included the one-way analysis of variance F test and the Chi Square test. The .05 probability level was accepted as significant. Major findings included the following: 1. Homemakers were not keeping a clothing inventory. 2. Homemakers were consumer-conscious: 93 percent would file a complaint with store manager; 98 percent shopped at reliable stores; 90 percent were satisfied with sale purchase and 92 percent relied on labels before purchasing. 3. Homemakers sought help for clothing care more often than any other clothing area. Ninety percent of homemakers used the Extension Agents and 80 percent used Extension Publications for sources of help with clothing care. 4. Extension contacts significantly influenced the homemakers in considering most areas of quality and workmanship before purchasing. 5. Homemakers who averaged more Extension meetings and clothing meetings were more likely to rely on labels before purchasing, 6. Homemakers who averaged attending more Extension meetings and clothing meetings, altered and made-over clothes more often as a matter of economy. 7. Homemakers involved in Home Demonstration clubs were more likely than non-members to file complaints when unsatisfied at the local level with the manufacturers. 8. Homemakers who sewed relied heavily on Extension for information and instruction. 9. Home Demonstration Club members averaged significantly more Extension contacts than non-members. Implications and recommendations were also made

    Masculinity at work: The experiences of men in female dominated occupations

    Get PDF
    This paper presents the findings of a research project on the implications of men's non-traditional career choices for their experiences within the organization and for gender identity. The research is based on 40 in-depth interviews with male workers from four occupational groups: librarian-ship, cabin crew, nurses and primary school teachers. Results suggest a typology of male workers in female dominated occupations: seekers (who actively seek the career), finders (who find the occupation in the process of making general career decisions) and settlers (who settle into the career after periods of time in mainly male dominated occupations). Men benefit from their minority status through assumptions of enhanced leadership (the assumed authority effect), by being given differential treatment (the special consideration effect) and being associated with a more careerist attitude to work (the career effect). At the same time, they feel comfortable working with women (the zone of comfort effect). Despite this comfort, men adopt a variety of strategies to re-establish a masculinity that has been undermined by the 'feminine' nature of their work. These include re-labeling, status enhancement and distancing from the feminine. The dynamics of maintaining and reproducing masculinities within the non-traditional work setting are discussed in the light of recent theorising around gender, masculinity and work
    corecore