33,421 research outputs found

    A Sheep in Synthetic Wolf's Clothing: Creating a Hybrid of Natural and Man-Made Materials to Combine Protection and Aesthetics in a Cold Climate.

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    For thousands of years, humans have experimented with methods of joining materials, not only to create objects for practical use but also to satisfy their desire for decoration and embellishment. This research project aims to combine a man-made technical textile with sheepskin (one of mankind's oldest protective clothing materials), in order to investigate the potential of creating an aesthetically pleasing garment that also offers high performance. This concept is an inversion of the recent trend for mimicking nature in textile construction. In this paper the processes explored will include the rationale for material selection, as well as construction methods such as bonding, welding and minimal seaming, together with ergonomic pattern cutting. Aspects of aesthetics will also be investigated. By combining these materials, processes and fabrications into a female-specific hybrid jacket, the intention of the research is to resolve the tension between garment aesthetics and the need for thermal regulation in a cold climate

    Few-Boson Processes in the Presence of an Attractive Impurity under One-Dimensional Confinement

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    We consider a few-boson system confined to one dimension with a single distinguishable particle of lesser mass. All particle interactions are modeled with δ\delta-functions, but due to the mass imbalance the problem is nonintegrable. Universal few-body binding energies, atom-dimer and atom-trimer scattering lengths are all calculated in terms of two parameters, namely the mass ratio: mL/mHm_{\text{L}}/m_{\text{H}}, and ratio gHH/gHLg_{\text{HH}}/g_{\text{HL}} of the δ\delta-function couplings. We specifically identify the values of these ratios for which the atom-dimer or atom-trimer scattering lengths vanish or diverge. We identify regions in this parameter space in which various few-body inelastic process become energetically allowed. In the Tonks-Girardeau limit (gHHg_{\text{HH}}\rightarrow \infty), our results are relevant to experiments involving trapped fermions with an impurity atom

    Formation of bridged bicycloalkenes via ring closing metathesis

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    Ring closing metathesis may be used in the formation of small ring bicycloalkenes from monocyclic diene precursors

    Gender Voice and Correlations with Peace

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    The statistics regarding violence in today’s society are staggering. A newly released study published by the World Health Organization, making headlines in the Wall Street Journal (Oct. 3, 2002) reports that “Violence Took 1.6 Million Lives in 2000.” Notably, this report considers only the data obtained from the seventy countries that report such statistics to the World Health Organization. It does not include reports from many countries whose violence is also high, such as Burundi, Rwanda, Iraq, Liberia and Afghanistan. This manuscript seeks to address some of these issues of violence by considering issues of gender. We pose the question whether there may be some correlation between violence and the lack meaningful involvement of women in the economy. If the countries that appear more violent are also countries where women are systematically excluded from business opportunities, perhaps one way to curb some of the societal violence would be to improve the opportunities for women in the economy. Multi-national corporations can play an important role in increasing these opportunities. As has been argued elsewhere, a reduction in poverty promotes stability and leads to a more peaceful society. Studies show that in developing countries, involving women in the economy as wage earners can reduce poverty. As the locus of production shifts away from the home, an initial decline in employment opportunities may occur. However, this eventually disappears and both women and men benefit.http://deepblue.lib.umich.edu/bitstream/2027.42/39915/3/wp530.pd

    Fear of Disease and Delayed Manifestation of Injuries: A Solution or a Pandora\u27s Box?

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    Effects of Representation in Media on Race Perceptions

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    This study examined the impact that television platforms have on perpetuating the stereotypes assigned to minority groups by majority groups, specifically among young adult populations. Previous studies have focused on the impact of misrepresentation in the media on individuals that identify with minority groups. However, this study assessed the impact of television platforms on minority groups’ internalized perceptions of self. It also assessed the impact of television platforms on majority groups’ implicit bias based on the quality and quantity of representation consumed. We hypothesized that the more exposure people have to positive representation, the less implicit biases they will have against minority groups. Online surveys were sent to students at multiple universities in the Northwest Indiana region. Students watching habits were compared to both implicit bias and internal perception of self. This study has important implications on how racial biases are formed and how more positive and accurate portrayals of minority groups on television platforms have the potential to shape better race relations in the future

    Asymptotics of Clebsch-Gordan Coefficients

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    Asymptotic expressions for Clebsch-Gordan coefficients are derived from an exact integral representation. Both the classically allowed and forbidden regions are analyzed. Higher-order approximations are calculated. These give, for example, six digit accuracy when the quantum numbers are in the hundreds.Comment: 30 pages, two figures. New Appendix added. Accepted for publication in the Journal of Mathematical Physic

    The Sheep Value Chain and ‘Wool Out’ Sheepskin as a Sustainable Material

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    This research looks at ‘wool out’ sheepskin as a possible sustainable material and its co dependency with the food market as sheepskin is a by-product of the meat industry. The work is informed by oral history and interviews with vets, farmers, tanners, merchants and small holders in exploring the sheep value chain in the United Kingdom from land use, farming, husbandry, tanning and their implications for garment design. The initial hypothesis in exploring the potential for sustainable ‘wool out’ sheepskin was that sheep required minimal intervention in add-on costs in terms of food and healthcare. This is true in part but a more complex picture emerges when exploring different breeds and their attributes. Differing breeds have evolved through farming and creative husbandry to benefit the needs of the market through history. This work explores how different land qualities and sheep breeds work in a symbiotic partnership. How breed varieties not only give different wool, fleece, qualities but also variety in ‘wool out’ sheepskin. It is the ‘wool out’ sheepskin that interests me as a designer and the challenges and opportunities it offers in fabric handle. It is part of a physical dialogue in the design process that explores the differing breeds and varieties of sheepskin in respect to constraint, flow, drape, volume, tactility, luster and the somatic presence of how the user will feel the differing surfaces when using the garment
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