3,257 research outputs found

    Connecting Online Graduate Students to the University Community

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    The purpose of this study was to understand how to facilitate a sense of belonging among online graduate students. Sense of community theory was the basis for examining students’ desires to be a part of a community and feel connected to the institution. Findings from a survey using the Sense of Community Index 2 (SCI-2) of online graduate students provided insight into the sense of community, the importance of belonging to a community, and activities that could strengthen their connection with the institution. Overall students showed a slightly stronger sense of belonging to their program than to the institution. Students were also asked how they prefer to connect to others in the community with mentoring and inperson social events being the most requested

    Small Grains and Rye Grass for Winter Pasture.

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    38 p

    Performance of prototypes for the ALICE electromagnetic calorimeter

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    The performance of prototypes for the ALICE electromagnetic sampling calorimeter has been studied in test beam measurements at FNAL and CERN. A 4×44\times4 array of final design modules showed an energy resolution of about 11% /E(GeV)\sqrt{E(\mathrm{GeV})} ⊕\oplus 1.7 % with a uniformity of the response to electrons of 1% and a good linearity in the energy range from 10 to 100 GeV. The electromagnetic shower position resolution was found to be described by 1.5 mm ⊕\oplus 5.3 mm /E(GeV)\sqrt{E \mathrm{(GeV)}}. For an electron identification efficiency of 90% a hadron rejection factor of >600>600 was obtained.Comment: 10 pages, 10 figure

    Beam energy dependent two-pion interferometry and the freeze-out eccentricity of pions in heavy ion collisions at STAR

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    We present results of analyses of two-pion interferometry in Au+Au collisions at sNN\sqrt{s_{NN}} = 7.7, 11.5, 19.6, 27, 39, 62.4 and 200 GeV measured in the STAR detector as part of the RHIC Beam Energy Scan program. The extracted correlation lengths (HBT radii) are studied as a function of beam energy, azimuthal angle relative to the reaction plane, centrality, and transverse mass (mTm_{T}) of the particles. The azimuthal analysis allows extraction of the eccentricity of the entire fireball at kinetic freeze-out. The energy dependence of this observable is expected to be sensitive to changes in the equation of state. A new global fit method is studied as an alternate method to directly measure the parameters in the azimuthal analysis. The eccentricity shows a monotonic decrease with beam energy that is qualitatively consistent with the trend from all model predictions and quantitatively consistent with a hadronic transport model.Comment: 27 pages; 27 figure
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