345,641 research outputs found
Measurement of the differential and double-differential Drell-Yan cross sections in proton-proton collisions at root s=7 TeV
No full textMeasurements of the differential and double-differential Drell-Yan cross sections are presented using an integrated luminosity of 4.5 (4.8) fb−1 in the dimuon (dielectron) channel of proton-proton collision data recorded with the CMS detector at the LHC at s√ = 7 TeV. The measured inclusive cross section in the Z-peak region (60–120 GeV) is σ(ℓℓ) = 986.4 ± 0.6 (stat.) ± 5.9 (exp. syst.) ± 21.7 (th. syst.) ± 21.7 (lum.) pb for the combination of the dimuon and dielectron channels. Differential cross sections dσ/dm for the dimuon, dielectron, and combined channels are measured in the mass range 15 to 1500 GeV and corrected to the full phase space. Results are also presented for the measurement of the double-differential cross section d2σ/dm d|y| in the dimuon channel over the mass range 20 to 1500 GeV and absolute dimuon rapidity from 0 to 2.4. These measurements are compared to the predictions of perturbative QCD calculations at next-to-leading and next-to-next-to-leading orders using various sets of parton distribution functions
Capital asset accounting policies under GASB Statement No. 34: Characteristics, antecedents, and implications
No full textIn this paper, we study the evolution of state and local governments’ capital asset accounting policies from the adoption of GASB Statement No. 34 through the fiscal year ending in 2016. We document substantial cross-sectional and time-series variation in the capitalization thresholds and estimated useful lives pertaining to major classes of capital assets, including buildings, equipment, improvements, and infrastructure assets. Diversity in capital asset accounting policies potentially diminishes the comparability of capital asset accounting information across governments and over time. We also discuss matters related to the implementation and ongoing use of the modified approach for reporting infrastructure assets. Our findings are useful to the GASB as well as to users of government financial reports.Peer reviewe
Extracting Boer-Mulders functions from p+D Drell-Yan processes
No full textWe extract the Boer- Mulders functions of valence and sea quarks in the proton from unpolarized p + D Drell- Yan data measured by the FNAL E866 Collaboration. Using these Boer- Mulders functions, we calculate the cos2 phi asymmetries in unpolarized pp Drell- Yan processes, both for the FNAL E866/ NuSea and the BNL Relativistic Heavy Ion Collider experiments. We also estimate the cos2 phi asymmetries in the unpolarized p (P) over bar Drell- Yan processes at GSI.Astronomy & AstrophysicsPhysics, Particles & FieldsSCI(E)37ARTICLE5null7
Using performance assessment in secondary school mathematics: an empirical study in a Singapore classroom
No full textThis article reports an exploratory study on using performance assessment in mathematics instruction in a high-performing secondary school in Singapore. An intact mathematics class participated in the study, and received chapter-based performance tasks as intervention during regular mathematics lessons for about one and a half school years. The performance tasks used included authentic and/or open-ended tasks. The students’ academic achievements and attitudes in mathematics were compared with a comparison class that did not receive the intervention. Both quantitative and qualitative data were collected, mainly through questionnaire surveys, performance task tests, conventional school exams, and interviews with students and teachers. The results suggest that the students receiving the intervention performed significantly better than their counterparts in solving conventional exam problems, and in general they also showed more positive changes in attitudes towards mathematics and mathematics learning. The students from the experimental class also expressed positive views about the benefits of using performance tasks in promoting their ability in higher order thinking, though no statistically significant difference was detected between the two classes of students in solving unconventional tasks before and after intervention. Overall, the results appear to support teachers’ using contextualised problems in real life situations and open-ended investigations in students’ learning of mathematic
Supporting Information for Tomographic Evidence for the Presence of a South-dipping Subduction System in the Mesozoic Southern Tethyan Ocean, G Cubed
No full textThis is the supporting information for the paper: Tomographic Evidence for the Presence of a South-dipping Subduction System in the Mesozoic Southern Tethyan Ocean by Peilong Yan, Nan Zhang, Huaiyu Yuan, Zheng-Xiang Li and Xiaoxu Liu. It includes Figures S1-S3 of this paper, which are "vote map" and standard deviation for the composite model, map-views and cross-sections of LLNL_G3D-JPS, and cross-sections of the 'Seis' anomaly from different seismic tomography models
Neural Multimodal Belief Tracker with Adaptive Attention for Dialogue Systems
No full textMultimodal dialogue systems are attracting increasing attention with a more natural and informative way for human-computer interaction. As one of its core components, the belief tracker estimates the user's goal at each step of the dialogue and provides a direct way to validate the ability of dialogue understanding. However, existing studies on belief trackers are largely limited to textual modality, which cannot be easily extended to capture the rich semantics in multimodal systems such as those with product images. For example, in fashion domain, the visual appearance of clothes play a crucial role in understanding the user's intention. In this case, the existing belief trackers may fail to generate accurate belief states for a multimodal dialogue system.In this paper, we present the first neural multimodal belief tracker (NMBT) to demonstrate how multimodal evidence can facilitate semantic understanding and dialogue state tracking. Given the multimodal inputs, while applying a textual encoder to represent textual utterances, the model gives special consideration to the semantics revealed in visual modality. It learns concept level fashion semantics by delving deep into image sub-regions and integrating concept probabilities via multiple instance learning. Then in each turn, an adaptive attention mechanism learns to automatically emphasize on different evidence sources of both visual and textual modalities for more accurate dialogue state prediction. We perform extensive evaluation on a multi-turn task-oriented dialogue dataset in fashion domain and the results show that our method achieves superior performance as compared to a wide range of baselines
Tong su yan yi
No full textV.1-13. 《新鐫批評出像通俗奇俠禪眞逸史》乾集. 卷一. 第一至五回 -- 坎集. 卷二. 第六至十回 -- 艮集. 卷三. 第十一至十五回 -- 震集. 卷四. 第十六至二十回 -- 巽集. 卷五. 第二十一至二十五回 -- 離集. 卷六. 第二十六至三十回 -- 坤集. 卷七. 第三十一至三十五回 -- 兌集. 卷八. 第三十六至四十回.v.14-20. 《新鐫批評出像通俗演義禪眞後史》甲集. 卷一. 第一至六回 -- 乙集. 卷二. 第七至十二回 -- 丙集. 卷三. 第十三至十八回 -- 丁集. 卷四. 第十九至二十四回 -- 戊集. 卷五. 第二十五至三十二回 -- [己集. 卷六]. 第三十三至三十六回 -- 庚集. 卷七. 第三十七至四十二回 -- 辛集. 卷八. 第四十三至五十三回.Detailed table of contents in vernacular field only.Detailed table of contents in vernacular field only.淸溪道人編次 ; 心心僊侶...[et al.]評訂. 新鐫批評出像通俗演義禪眞後史 : 共八卷五十三回 / 淸溪道人編次 ; 冲和居士評校.綫裝, 2函.框14x10.3公分, 10行24字, 無界行. 白口, 左右雙邊, 單黑魚尾. 版心上鐫"禪眞逸史", 中鐫回次, 下鐫葉次. 《後史》行間有批點.見《香港中文大學圖書館古藉善本書錄》(2001, p. 156)《逸史》内封頁題"禪真逸史, 清心道人編次, 本衙梓行" ; 《後史》内封頁題"通俗演義, 禪真後史, 本衙藏板"《後史》前有崇禎己巳[1629]翠娛閣主人序.Library's copy: 原書《後史》第三十一至三十二回葉次亂序, 並缺第三十一回首數葉.Xian zhuang, 2 han.Kuang 14 x 10.3 gong fen, 10 hang 24 zi, wu jie hang. Bai kou, zuo you shuang bian, dan hei yu wei. Ban xin shang juan "Chan zhen yi shi", zhong juan hui ci, xia juan ye ci. "Hou shi" hang jian you pi dian.Jian "Xianggang Zhong wen da xue tu shu guan gu ji shan ben shu lu" (2001, p. 156)"Yi shi" nei feng ye ti "Chan zhen yi shi, Qingxindaoren bian ci, ben ya zi xing" ; "Hou shi" nei feng ye ti "Tong su yan yi, Chan zhen hou shi, ben ya cang ban""Hou shi" qian you Chongzhen ji si [1629] Cuiyugezhuren xu.Fiction.Qingxidaoren bian ci ; Xinxinxianlu ...[et al.] ping ding. Xin juan pi ping chu xiang tong su yan yi chan zhen hou shi : gong ba juan wu shi san hui / Qingxidaoren bian ci ; Chonghejushi ping jiao.Library's copy: yuan shu "Hou shi" di san shi yi zhi san shi er hui ye ci luan xu, bing que di san shi yi hui shou shu ye
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