1,666 research outputs found

    The Use of Body Language in English Teaching

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    Body language means action, expression and posture with something meaningful. In classroom teaching, the teachers’ body language can help to increase the effect of sound language. It is an important method for teachers to learn about the students by noticing the students’ body language. Teachers can get feedback information by watching the students’ expressions in their eyes, on their faces and noticing their actions, as to adjust and organize the teaching in class timely and effectively. Nowadays nonverbal communication has been used in many fields. With the continual reform of language teaching and learning methods, teachers have great challenge in organize the classes in English and create English-learning circumstances. However, with students’ limitation, teachers have to simplify their teaching language with the help of facial expression and body movements

    On the Obstacles and Strategies in English Listening Teaching

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    Listening comprehension can be affected positively or negatively by various factors. The factors can be identified as internal and external. They are analyzed respectively and several effective strategies are also presented afterward. The barriers to listening are those of language knowledge, listening habits, psychological quality, cultural background and so on. The strategies should be as follows: training students’ listening skills and good habits, laying stress on training psychological quality, broadening the cultural background knowledge, breeding interest on listening, using student-centered teaching method, ect. Due to the disagreements with previous teaching approaches over the past years,listening teaching, step by step, pays heel to the employment of listening strategies and the listening strategies production

    Study on Factors Affecting Learning Strategies in Reading Comprehension

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    This paper presents the literature on reading competence and analyzes the influence of factors on students’ strategy use. The necessity of integrating social and individual factors in the studies of learning strategy, especially individual factors affecting the improvement of reading competence is made explicit, and this is followed by the description of situational factors and individual factors such as motivation, age, sex, personality and so on

    Universal scaling of strange particle pTp_{\rm T} spectra in pp collisions

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    As a complementary study to that performed on the transverse momentum (pTp_{\rm T}) spectra of charged pions, kaons and protons in proton-proton (pp) collisions at LHC energies 0.9, 2.76 and 7 TeV, we present a scaling behaviour in the pTp_{\rm T} spectra of strange particles (KS0K_{S}^{0}, Λ\rm \Lambda, Ξ\rm \Xi and ϕ\phi) at these three energies. This scaling behaviour is exhibited when the spectra are expressed in a suitable scaling variable z=pT/Kz=p_{\rm T}/K, where the scaling parameter KK is determined by the quality factor method and increases with the center of mass energy (s\sqrt{s}). The rates at which KK increases with lns\mathrm{ln}\sqrt{s} for these strange particles are found to be identical within errors. In the framework of the colour string percolation model, we argue that these strange particles are produced through the decay of clusters that are formed by the colour strings overlapping. We observe that the strange mesons and baryons are produced from clusters with different size distributions, while the strange mesons (baryons) KS0K_{S}^{0} and ϕ\phi (Λ\rm \Lambda and Ξ\rm \Xi) originate from clusters with the same size distributions. The cluster's size distributions for strange mesons are more dispersed than those for strange baryons. The scaling behaviour of the pTp_{\rm T} spectra for these strange particles can be explained by the colour string percolation model in a quantitative way.Comment: 8 pages, 10 figures, accepted by EPJ

    Engineering quantum magnetism in one-dimensional trapped Fermi gases with p-wave interactions

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    The highly controllable ultracold atoms in a one-dimensional (1D) trap provide a new platform for the ultimate simulation of quantum magnetism. In this regard, the NĂ©el antiferromagnetism and the itinerant ferromagnetism are of central importance and great interest. Here we show that these magnetic orders can be achieved in the strongly interacting spin-1/2 trapped Fermi gases with additional p-wave interactions. In this strong-coupling limit, the 1D trapped Fermi gas exhibits an effective Heisenberg spin XXZ chain in the anisotropic p-wave scattering channels. For a particular p-wave attraction or repulsion within the same species of fermionic atoms, the system displays ferromagnetic domains with full spin segregation or the antiferromagnetic spin configuration in the ground state. Such engineered magnetisms are likely to be probed in a quasi-1D trapped Fermi gas of K40 atoms with very close s-wave and p-wave Feshbach resonances.This work is supported by the National Natural Science Foundation of China (NNSFC) under Grants No. 11374177, No. 11421092, and No. 11374331, and by key NNSFC Grant No. 11534014, by the National Basic Research Program of China under Grant No. 2012CB922101, and the programs of the Chinese Academy of Sciences. X.W.G. and X.C. thank Y-Z. Jiang, D. Kurlov, G. Shlyapnikov, and Y.-P. Wang for helpful discussions

    A115: Revision of the Chinese Version of Physical Self-Description Questionnaire-Short for Middle School Students

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    Purpose: The Physical Self-Description Questionnaire -Short (PSDQ-S) is one of the world\u27s recognized effective tools for measuring Physical Self-Concept (PSC). However, Latent profile analysis of the physical self-description among Chinese adolescents only supported the 3-dimensional model of PSDQ-S, that is, it could only distinguish the Physical Activity (PA), Appearance, and Body Fat of Chinese children and adolescents, but could not effectively distinguish the 8 dimensions of Coordination, Flexibility, Strength, Endurance, Sport, Global Physical, Health, and Global Esteem. It cannot meet the needs of PSC measurement in the field of sports psychology in China. The purpose of this study was to revise the PSDQ-S for Chinese middle school students, and to test its reliability, validity, and gender measurement equivalence in Chinese middle school students. Methods: A stratified random cluster sampling method was used to conduct a questionnaire survey on the Chinese version of PSDQ-S. 2505 middle school students in grades 7-12 (12-18 years old) were selected from seven administrative geographic regions of North China, Northeast China, East China, Central China, South China, Southwest and Northwest China, among which 1239 were male subjects, with an average age of (15.07±1.93) years, Female subjects were 1266, with an average age of (15.02±2.04) years. SPSS 24.0 and Mplus 8.3 were used for data analysis. Results: Eight common factors were extracted by exploratory factor analysis, and the cumulative variance interpretation rate was 79.45%. Confirmatory factor analysis support 8 factor model hypothesis (χ2 / df = 1.846, CFI = 0.939, TLI = 0.929, SRMR = 0.050, RMSEA = 0.061). The 8 dimensions were Physical Activity, Appearance, Body Fat, Flexibility & Coordination, Endurance, Sport, Global Physical and Health. The average variance extraction of each factor of the Chinese version PSDQ-S convergence validity index was greater than 0.50, and the combination reliability was greater than 0.60. The gender equivalence hypothesis was established. Conclusions: The revised Chinese version of PSDQ-S has good reliability, validity, and gender equivalence. It can be used as a measurement tool of PSC of Chinese middle school students

    Analysis on the Protection of Short Video Copyright and Countermeasures for Short Video Copyright Protection

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    Short video is born with the development and operation of the Internet environment and has become one of the most popular entertainment consumer products. However, while the short video industry is booming, it also faces the problem of copyright infringement. The reason is that the creation, secondary creation and dissemination of short videos are simple and the cost of infringement is low, so the frequent infringement cases hinder the development of short video market which discourage the enthusiasm of video creators. Alleviating copyright infringement will help copyright protection agencies and relevant laws and regulations improve. Therefore, this paper studies the current short video industry, the current typical infringement phenomenon was described. To be specific, it describes in detail the problems existing in the current governance of copyright in the field of short video. The definition and ownership of short video copyright is not clear, the short video content supervision system is not perfect, and the responsibilities of short video platforms are still to be solved. In view of the outstanding problems, the paper proposed the countermeasures to complete the definition and attribution of short video, establish a sound supervision system, and improve the responsibility of short video platform

    Le rôle du stress oxydatif/nitrosatif dans la pathogénèse de l’encéphalopathie hépatique chronique

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    L'encéphalopathie hépatique (EH) est un syndrome neuropsychiatrique dû à une dysfonction hépatique où l'ammoniaque est un facteur central. Il a déjà été rapporté que l’intoxication aiguë d'ammoniaque induise le stress oxydatif/nitrosatif. La présente étude cible à évaluer le rôle du stress oxydatif/nitrosatif dans 2 modèles de l’EH chronique : (1) l’anastomose portocave (PCA) et (2) la ligation de la voie biliaire (BDL). Ces 2 modèles sont caractérisés par une hyperammoniémie et une augmentation d’ammoniaque centrale, cependant l’œdème cérébral est trouvé seulement chez les rats BDL. Des marqueurs du stress oxydatif/nitrosatif ont été évaluées dans le plasma et cortex frontal. Un stress nitrosatif central a été observé chez les rats PCA; tandis qu’un stress oxydatif/nitrosatif systémique a été démontré seulement chez les rats BDL. Ces résultats suggèrent (1) que l’hyperammoniémie chronique n’induise pas le stress oxydatif/nitrosatif systémique et (2) qu’un synergisme existe entre l’ammoniaque et le stress oxydatif/nitrosatif, en association avec l’œdème cérébral.Hepatic encephalopathy (HE) is a neuropsychiatric complication due to liver failure where ammonia is believed to be central in the pathogenesis. Acute ammonia intoxication has demonstrated to induce oxidative/nitrosative stress in both in vivo and in vitro models. The present study was aimed to assess the role of oxidative/nitrosative stress in 2 models of chronic liver failure/HE; 1. portacaval anastomosis (PCA) and 2. bile duct ligation (BDL). Both models are characterised with hyperammonemia and increased brain ammonia however cerebral edema is only found in BDL rats. Oxidative/nitrosative stress markers were evaluated in plasma and frontal cortex of both animal models. Central nitrosative stress was observed in PCA rats, but systemic oxidative/ntrosative stress was demonstrated only in BDL rats. The results of our study suggest i) chronic hyperammonemia does not induce oxidative stress and ii) a synergistic effect between ammonia and systemic oxidative/nitrosative stress is associated with cerebral edema

    Ca2+ channel subunit a 1D inhibits endometriosis cell apoptosis and mediated by prostaglandin E2

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    Objectives: Endometriosis is considered as a chronic pelvic inflammatory disease and prostaglandin E2(PGE2) (a kind of the inflammatory cytokines) was increased in the endometriosis patient’s peritoneal fluid . Ca2+ signal and Ca2+ channels play an important role in cell apoptosis. This study was to explore the L-type calcium channel (Cav1.3) expression and its biological function in endometriosis. Furthermore the molecular mechanism between Cav1.3 and PGE2 was also clarified. Material and methods: The real-time PCR and immunohistochemical were used to detect the expression of Cav1.3. Apoptosis was detected by Flow cytometry assay and Western blot assay. Results: Cav1.3 was high expression in endometriosis tissue and primary endometrial stromal cells (hEM15A). Treatment with PGE2 rapidly inhibited apoptosis and increased Cav1.3 expression in hEM15A . The silencing of Cav1.3 promoted apoptosis, which was unchanged after PGE2 treatment. Moreover, the inhibition of Cav1.3 by shRNA transfection activated cleaved PARP and cleaved caspase-3. Conclusions: These available evidences suggest that Cav1.3 is required for PGE2 induction apoptosis and relates to the pathophysiology of endometriosis. Interference with Cav1.3 may offer a neo-therapeutic window in endometriosis treatment
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