10,983 research outputs found

    Simulation of the small punch creep test with consideration of variation of material properties

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    A new finite element model of the small punch creep test is described. The material constitutive relationship for creep considered is a simple Norton power law: in this study the exponent in the power law is varied for each element to simulate the random behaviour of creep. The influence of this random variation, and the effect of the friction factor between the punch and specimen, on the deformation and stress field has been investigated

    Follow the leader or the pack? Regulatory focus and academic entrepreneurial intentions

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    Drawing on the academic entrepreneurship and regulatory focus theory literature, and applying a multilevel per- spective, this paper examines why university academics intend to engage in formal (spin-off or start-up companies and licensing university research) or informal (collaborative research, contract research, continuous professional development, and contract consulting) commercialization activities and the role local contextual factors, in partic- ular leaders and work-group colleagues (peers), play in their commercialization choices. Based on a survey of 395 science, technology, engineering, and mathematics (STEM) academics working in 14 Scottish universities, the research findings suggest that an individual’s chronic regulatory focus has a direct effect on their formal and informal commercialization intent. The results reveal that the stronger an individual’s chronic promotion focus the stronger their formal and informal commercialization intentions and a stronger individual chronic prevention focus leads to weaker intentions to engage in informal commercialization. In addition, when contextual interaction effects are considered, leaders and workplace colleagues have different influences on commercialization intent. On the one hand, promotion-focused leaders can strengthen and prevention-focused leaders can under certain cir- cumstances weaken a promotion-focused academic’s formal commercialization intent. On the other hand, the level of workplace colleague engagement, acting as a reference point, strengthens not only promotion-focused academ- ics’ intent to engage in formal commercialization activities, but also prevention-focused academics’ corresponding informal commercialization intent. As such, universities should consider the appointment of leaders who are strong role models and have a track record in formal and/or informal commercialization activities and also con- sider the importance workplace colleagues have on moderating an academic’s intention to engage in different forms of commercialization activities

    Nonperturbative ``Lattice Perturbation Theory''

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    We discuss a program for replacing standard perturbative methods with Monte Carlo simulations in short distance lattice gauge theory calculations.Comment: 3 pages, uuencoded Latex file, two embedded figures and .sty file include

    An Sp1 Modulated Regulatory Region Unique to Higher Primates Regulates Human Androgen Receptor Promoter Activity in Prostate Cancer Cells

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    Funding: This work was supported by the Chief Scientist’s Office (CSO) of the Scottish Government (http://www.cso.scot.nhs.uk/): CWH (CZB-4-477) and IH (ETM/382).Peer reviewedPublisher PD

    Eating the elephant whole or in slices: views of participants in a smoking cessation intervention trial on multiple behaviour changes as sequential or concurrent tasks

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    Background: This paper explores smoking cessation participants’ perceptions of attempting weight management alongside smoking cessation within the context of a health improvement intervention implemented in Glasgow, Scotland. <p/>Methods: One hundred and thirty-eight participants were recruited from smoking cessation classes in areas of multiple deprivation in Glasgow and randomised to intervention, receiving dietary advice, or to control groups. The primary outcome of the study was to determine the % change in body weight. Semi-structured interviews were conducted with a purposive sample of 15 intervention and 15 control participants at weeks 6 (during the intervention) and 24 (at the end of the intervention). The current paper, though predominantly qualitative, links perceptions of behaviour modification to % weight change and cessation rates at week 24 thereby enabling a better understanding of the mediators influencing multiple behaviour change. <p/>Results: Our findings suggest that participants who perceive separate behaviour changes as part of a broader approach to a healthier lifestyle, and hence attempt behaviour changes concurrently, may be at comparative advantage in positively achieving dual outcomes. <p/>Conclusions: These findings highlight the need to assess participants’ preference for attempting multiple behaviour changes sequentially or simultaneously in addition to assessing their readiness to change. Further testing of this hypothesis is warranted

    Effect of Applied Orthorhombic Lattice Distortion on the Antiferromagnetic Phase of CeAuSb2_2

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    We study the response of the antiferromagnetism of CeAuSb2_2 to orthorhombic lattice distortion applied through in-plane uniaxial pressure. The response to pressure applied along a ⟹110⟩\langle 110 \rangle lattice direction shows a first-order transition at zero pressure, which shows that the magnetic order lifts the (110)/(11ˉ0)(110)/(1\bar{1}0) symmetry of the unstressed lattice. Sufficient ⟹100⟩\langle 100 \rangle pressure appears to rotate the principal axes of the order from ⟹110⟩\langle 110 \rangle to ⟹100⟩\langle 100 \rangle. At low ⟹100⟩\langle 100 \rangle pressure, the transition at TNT_N is weakly first-order, however it becomes continuous above a threshold ⟹100⟩\langle 100 \rangle pressure. We discuss the possibility that this behavior is driven by order parameter fluctuations, with the restoration of a continuous transition a result of reducing the point-group symmetry of the lattice.Comment: 6 pages, 7 figure

    William Arbuthnot Lane (1856-1943): Surgical Innovator and His Theory of Autointoxication.

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    William Arbuthnot Lane contributed to the advancement of many fields of orthopedics, otolaryngology, and general surgery. He is credited for his no-touch technique and the invention of long-handled instruments, some of which are still in use today, to minimize tissue handling. He is most well known for his hypothesis that slowing of gastric contents could cause a variety of ailments and this became known as Lane\u27s disease. Although his surgical treatment of Lane\u27s disease is now defunct, it advanced the surgical technique in colorectal surgery. It seems likely that some of Lane\u27s autointoxication patients would be classified today as patients with colonic inertia, diverticulitis, colonic volvulus, and megacolon or, which are all treated with colectomy. Lane was a pioneer in multiple fields and a true general surgeon. He advanced colorectal surgery immensely and propelled the field of surgery into a new era

    Laser operation of a Tm:Y<sub>2</sub>O<sub>3</sub> planar waveguide

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    We demonstrate the first Tm-doped yttria planar waveguide laser to our knowledge, grown by pulsed laser deposition. A maximum output power of 35 mW at 1.95 ”m with 9% slope efficiency was achieved from a 12 ”m-thick film grown on a Y3Al5O12 substrate
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