530 research outputs found

    DSpace 1.6 usage statistics: What it can do for you?

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    Introduction DSpace 1.6 has been extended with a new Apache Solr based statistics solution. This contribution to DSpace is the open-source version of @mire's commercial "Content and Usage Analysis" DSpace module. The DSpace 1.6 statistics offer storage of usage data including bitstream downloads, item display page visits, collection and community homepage visits, ...

    DSpace 1.6 usage statistics: What it can do for you?

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    Introduction DSpace 1.6 has been extended with a new Apache Solr based statistics solution. This contribution to DSpace is the open-source version of @mire's commercial "Content and Usage Analysis" DSpace module. The DSpace 1.6 statistics offer storage of usage data including bitstream downloads, item display page visits, collection and community homepage visits, ...

    Studies on the Cold Injury of the Chestnut Tree 1 : The Change of Moisture, Respiration and Osmotic pressure during the winter

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    Moisture and respiration of the stems of chestnut trees and osmotic pressure of their living bark cells were investigated at various times during the period from Oct. 1956 to Mar. 1957. The stems of on-year-old chestnut trees and their stocks (Gin-yose seedlings) were chiefly used as the materials. During the investigation the water content of a sweet chestnut variety (less hardy) was a little higher than that of Japanese chestnut varieties (semi-hardy). In December, the amount of CO_2 output from the stems in Japanese chestnut varieties was less han sweet chestnut variety. In January, however, the difference among them was hardly observed. In all varieties, the respiration of the stems decreased and the osmotic pressure (with incipient plasmolysis) of the living bark cells increased rapidly from the late fall, and attained respectively to certain levels, particularly the harder varieties reached earlier. The osmotic pressure of the living bark cells of the trunk of two or three years' old, decreased gradually from the top to base

    The effects of induced emotions on pro-social behaviour

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    This is the author accepted manuscript. The final version is available from the publisher via the DOI in this record.Emotions are commonly experienced and expressed in human societies; however, their consequences on economic behaviour have received only limited attention. This paper investigates the effects of induced positive and negative emotions on cooperation and sanctioning behaviour in a one-shot voluntary contributions mechanism game, where personal and social interests are at odds. We concentrate on two specific emotions: anger and happiness. Our findings provide clear evidence that measures of social preferences are sensitive to subjects' current emotional states. Specifically, angry subjects contribute, on average, less than happy subjects and overall welfare as measured by average net earnings is lower when subjects are in an angry mood. We also find that how punishment is used is affected by moods: angry subjects punish harsher than happy subjects, ceteris paribus. These findings suggest that anger, when induced, can have a negative impact on economic behaviour

    Search for the standard model Higgs boson at LEP

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    Jet energy measurement with the ATLAS detector in proton-proton collisions at root s=7 TeV

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    The jet energy scale and its systematic uncertainty are determined for jets measured with the ATLAS detector at the LHC in proton-proton collision data at a centre-of-mass energy of √s = 7TeV corresponding to an integrated luminosity of 38 pb-1. Jets are reconstructed with the anti-kt algorithm with distance parameters R=0. 4 or R=0. 6. Jet energy and angle corrections are determined from Monte Carlo simulations to calibrate jets with transverse momenta pTβ‰₯20 GeV and pseudorapidities {pipe}Ξ·{pipe}<4. 5. The jet energy systematic uncertainty is estimated using the single isolated hadron response measured in situ and in test-beams, exploiting the transverse momentum balance between central and forward jets in events with dijet topologies and studying systematic variations in Monte Carlo simulations. The jet energy uncertainty is less than 2. 5 % in the central calorimeter region ({pipe}Ξ·{pipe}<0. 8) for jets with 60≀pT<800 GeV, and is maximally 14 % for pT<30 GeV in the most forward region 3. 2≀{pipe}Ξ·{pipe}<4. 5. The jet energy is validated for jet transverse momenta up to 1 TeV to the level of a few percent using several in situ techniques by comparing a well-known reference such as the recoiling photon pT, the sum of the transverse momenta of tracks associated to the jet, or a system of low-pT jets recoiling against a high-pT jet. More sophisticated jet calibration schemes are presented based on calorimeter cell energy density weighting or hadronic properties of jets, aiming for an improved jet energy resolution and a reduced flavour dependence of the jet response. The systematic uncertainty of the jet energy determined from a combination of in situ techniques is consistent with the one derived from single hadron response measurements over a wide kinematic range. The nominal corrections and uncertainties are derived for isolated jets in an inclusive sample of high-pT jets. Special cases such as event topologies with close-by jets, or selections of samples with an enhanced content of jets originating from light quarks, heavy quarks or gluons are also discussed and the corresponding uncertainties are determined. Β© 2013 CERN for the benefit of the ATLAS collaboration
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