7,428 research outputs found

    SUSY Parameters Determination with ATLAS

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    The plan for mass and spin measurement of SUSY particles with the ATLAS detector is presented. The measurements of kinematical distributions, such as edges in the invariant mass of leptons and jets, could be used to constrain the model of SUSY that may be discovered at the LHC. Examples from a few points in the mSUGRA scenario are provided with an emphasis on measurements that can be conducted within the first few years of data taking.Comment: Submitted for the SUSY07 proceedings, 4 pages, LaTeX, 5 eps figures; resized figures to 4 page

    Search for Supersymmetry Signatures at the LHC

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    Supersymmetry (SUSY) is one of the most interesting and comprehensively studied models for new physics beyond the Standard Model. If SUSY exists in nature the Large Hadron Collider will provide excellent opportunities to search for SUSY. SUSY discovery strategies of the ATLAS and CMS experiments are presented with a focus on early data. SUSY mass measurement techniques and determination of SUSY model parameters are also demonstrated.Comment: To be published in the proceedings of DPF-2009, Detroit, MI, July 2009, eConf C09072

    Exclusive Measurements for SUSY Events with the ATLAS detector at the LHC

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    We present recent work performed in ATLAS on the SUSY mass measurement techniques by selecting exclusive decay chains as well as on the determination of SUSY model parameters with an integrated luminosity of 1~fb1^{-1} at 14 TeV center of mass energy

    Gay male academics in UK business and management schools: negotiating heteronormativities in everyday work life

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    This paper contributes to a neglected topic area about lesbian, gay, bisexual and trans people’s employment experiences in UK business and management schools. Drawing on queer theory to problematize essentialist notions of sexuality, we explore how gay male academics negotiate and challenge discourses of heteronormativity within different work contexts. Using in-depth interview data, the paper shows that gay male academics are continually constrained by heteronormativity in constructing viable subject positions as ‘normal’, often having to reproduce heteronormative values that squeeze opportunities for generating non-heteronormative ‘queer’ sexualities, identities and selves. Constructing a presence as an openly gay academic can invoke another binary through which identities are (re)constructed: as either ‘gay’ (a cleaned up version of gay male sexuality that sustains a heteronormative moral order) or ‘queer’ (cast as radical, disruptive and sexually promiscuous). Data also reveal how gay men challenge organizational heteronormativities through teaching and research activities, producing reverse discourses and creating alternative knowledge/power regimes, despite institutional barriers and risks of perpetuating heteronormative binaries and constructs. Study findings call for pedagogical and research practices that ‘queer’ (rupture, destabilize, disrupt) management knowledge and the heterosexual/homosexual binary, enabling non-heteronormative voices, perspectives, identities and ways of relating to emerge in queer(er) business and management schools

    Islamic orthodoxy among the Ottomans in the seventeenth century with special reference to the Qadi-Zade movement

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    SIGLELD:D48930/84 / BLDSC - British Library Document Supply CentreGBUnited Kingdo

    A novel queue-aware wireless link adaptation mechanism and its fixed-point analytical model

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    A point-to-point (PTP) wireless link is studied that carries long-lived TCP flows and is controlled with active queue management (AQM). A cross-layer queue-aware adaptive modulation and coding (AMC)-based link adaptation (LA) mechanism is proposed for this wireless link to improve the TCP-level throughput relative to the case where AMC decisions are made based solely on the physical layer (PHY) parameters. The proposed simple-to-implement LA mechanism involves the use of an aggressive modulation and coding scheme (MCS) with high spectral efficiency and high block error rates when the queue occupancy exceeds a certain threshold, but otherwise a relatively conservative MCS with lower spectral efficiency and lower block error rates. A fixed-point analytical model is proposed to obtain the aggregate TCP throughput attained at this wireless link and the model is validated by ns-3 simulations. Numerical experimentation with the proposed analytical model applied to an IEEE 802.16-based wireless link demonstrates the effectiveness of the proposed queue-aware LA (QAWLA) mechanism in a wide variety of scenarios including cases where the channel information is imperfect. The impact of the choice of the queue occupancy threshold of QAWLA is extensively studied with respect to the choice of AQM parameters in order to provide engineering guidelines for the provisioning of the wireless link. © 2015, Ozturk and Akar

    No significant association between the promoter region polymorphisms of factor VII gene and risk of venous thrombosis in cancer patients

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    Factor VII (FVII) plays an important role in blood coagulation. The role of common polymorphisms influencing the FVII plasma levels in thromboembolic disorders has been evaluated but there is no published data related to the effect of FVII gene polymorphisms on the venous thrombosis risk in cancer. Aim: To investigate the association of three common functional polymorphisms in the promoter region of FVII gene: a decanucleotide insertion at position-323 (-323ins10-bp), a G to T substitution at position-401 (-401GT), and a G to A substitution at position-402 (-401GT) with venous thrombosis in cancer patients. Materials and Methods: The study included 60 cancer patients with venous thromboembolism (VTE) (group 1) and 130 cancer patients without VTE (group 2). Genotyping of -323ins10-bp, -401GT, and -402GA polymorphisms in the promoter region of FVII gene was performed by the method of single-strand conformation polymorphism analysis and sequencing. Factor V Leiden (FVL) was also determined in all cases. Results: The frequency of FVL was significantly greater in cancer patients with VTE compared with group 2 patients (p 0.05). The results did not change significantly after the exclusion of patients carrying the FVL (p > 0.05). Conclusions: The screening for the -323ins10-bp, -401GT, and -402GA olymorphisms of FVII gene did not contribute to a meaningful diagnostic nvestigation in cancer patients with venous thrombosis