9,273 research outputs found

    Repeated-reading-based instructional strategy and vocabulary acquisition: A case study of a heritage speaker of Chinese

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    Repeated reading, a procedure involving repetition of the same text, has received copious attention from first language reading research providing highly converging evidence of its potency for reading fluency, accuracy, and comprehension. In contrast, second language research on repeated reading has been scarce. The very few studies extant have, nevertheless, shown similar, albeit inconclusive, findings. The present study was an attempt to foray into a hitherto uncharted area in both first and second language research, by investigating vocabulary gains from implementing a set of repeated-reading-based pedagogical and learning procedures. Using one heritage speaker of Chinese as its subject, the study administered 20 sessions of assisted repeated reading over three weeks. Results indicated both intentional and incidental vocabulary gains that would not otherwise have been possible through conventional reading or vocabulary instruction

    Tetra­aqua­bis(4,4′-bipyridine)zinc(II) bis­(trans-4-hydroxy­cinnamate)

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    The title complex, [Zn(C10H8N2)2(H2O)4](C9H7O3)2, was obtained by the hydro­thermal reaction of zinc sulfate with mixed 4-hydroxy­lcinnamic acid (H2 L) and 4,4′-bipyridine (4,4′-bipy) ligands. The complex consists of a centrosymmetric [Zn(4,4′-bipy)2(H2O)4]2+ cation with the metal centre in a distorted ZnN2O4 coordination, and of two HL − anions. Extensive O—H⋯O and O—H⋯N hydrogen-bonding inter­actions between the constituents lead to the formation of a three-dimensional network

    TYPE VI COLLAGEN STIMULATES MACROPHAGES TO PROMOTE INFLAMMATION

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    poster abstractCollagen VI (COL6), an extracellular matrix protein (ECM), is important in maintaining the integrity of the tissue. Our recent findings have demonstrat-ed that excess COL6 is present in the lungs of comorbid patients with em-physema and adenocarcinoma. COL6 localized in the pulmonary interstitium is likely to interact with endothelial, epithelial and infiltrated pulmonary mac-rophages. The hypothesis is that excessive COL6 activates macrophages to promote inflammation, which may exacerbate pulmonary diseases. To test our hypothesis, bone marrow derived macrophages or macrophage cell lines were stimulated with soluble COL6 followed by analysis of activation markers and pro inflammatory cytokines. And results showed an increase in the number of CD86 positive cells and the levels of IL-12 and IFNγ production following stimulation. Taken together, our data have provided a link between increased amounts of COL6 and subsequent immune responses, which may play a role in the pathogenesis of pulmonary inflammatory diseases

    Action Recognition Using 3D Histograms of Texture and A Multi-Class Boosting Classifier

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    Human action recognition is an important yet challenging task. This paper presents a low-cost descriptor called 3D histograms of texture (3DHoTs) to extract discriminant features from a sequence of depth maps. 3DHoTs are derived from projecting depth frames onto three orthogonal Cartesian planes, i.e., the frontal, side, and top planes, and thus compactly characterize the salient information of a specific action, on which texture features are calculated to represent the action. Besides this fast feature descriptor, a new multi-class boosting classifier (MBC) is also proposed to efficiently exploit different kinds of features in a unified framework for action classification. Compared with the existing boosting frameworks, we add a new multi-class constraint into the objective function, which helps to maintain a better margin distribution by maximizing the mean of margin, whereas still minimizing the variance of margin. Experiments on the MSRAction3D, MSRGesture3D, MSRActivity3D, and UTD-MHAD data sets demonstrate that the proposed system combining 3DHoTs and MBC is superior to the state of the art

    Neurochemical characterization of pERK-expressing spinal neurons in histamine-induced itch

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    Date of Acceptance: 08/07/2015 Acknowledgements This work was supported by grants from the Ministry of Science and Technology of China (2012CB966904, 2011CB51005), National Natural Science Foundation of China (31271182, 81200692, 91232724, 81200933, 81101026), Shanghai Natural Science Foundation (12ZR1434300), Key Specialty Construction Project of Pudong Health Bureau of Shanghai (PWZz2013-17), Shenzhen Key Laboratory for Molecular Biology of Neural Development (ZDSY20120617112838879), Fundamental Research Funds for the Central Universities (1500219072) and Sino-UK Higher Education Research Partnership for PhD Studies.Peer reviewedPublisher PD
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