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| 1 | Perceived stress among Macao nursing students in the clinical learning environment显示文摘Objective:This study aimed at investigation of the stress perceived by Macao nursing students in the clinical learning environment.Methods:A cross-sectional research was designed and 203 nursing students in a public higher education institute were recruited.The Stressors in Nursing Students Scale-Chinese Version(SINS-CN)was used to measure nursing students'stress.Data analysis includes descriptive analysis and analysis of variance.Results:The overall SINS-CN mean score was 3.33(SD=0.49),while the scores for different dimensions were:clinical,3.44(SD=0.54),education,3.35(SD=0.62),finance and time,3.31(SD=0.72),confidence,3.21(SD=0.60),and personal problems,3.03(SD=0.68).Among 10 most common stressors,four belong to the clinical dimension,four to the education dimension,one to the confidence dimension,and one to the finance&time dimension.Analysis for factors associated with stress indicated that no statistical significance was found in most demographic variables,except year two students'stress scores were significantly lower than those of students in other years(p values were between 0.000 and 0.026).Conclusions:Macao nursing students,to some extent,experienced stress in clinical learning environment and the stress level was higher than that of Hong Kong nursing students.The most common stressors were related to clinical and educational dimensions.The study suggests that teaching and learning modalities and the workload of nursing students should be reviewed. | Ming Liu Ken Gu Thomas K.S.Wong Min Z.Luo Men Y.Chan | 2015 | International Journal of Nursing Sciences2015,2,2: | 1 |
| 2 | The ALMA-QUARKS Survey.Ⅰ.Survey Description and Data Reduction显示文摘This paper presents an overview of the QUARKS survey,which stands for Querying Underlying mechanisms of massive star formation with ALMA-Resolved gas Kinematics and Structures.'The QUARKS survey is observing139 massive clumps covered by 156 pointings at Atacama Large Millimeter/submillimeter Array(ALMA)Band 6(λ~1.3 mm).In conjunction with data obtained from the ALMA-ATOMS survey at Band 3(λ~3 mm),QUARKS aims to carry out an unbiased statistical investigation of massive star formation process within protoclusters down to a scale of 1000 au.This overview paper describes the observations and data reduction of the QUARKS survey,and gives a first look at an exemplar source,the mini-starburst Sgr B2(M).The wide-b and width(7.5 GHz)and high-angular-resolution(~0.'3)observations of the QUARKS survey allow for the resolution of much more compact cores than those could be done by the ATOMS survey,and to detect previously unrevealed fainter filamentary structures.The spectral windows cover transitions of species including CO,SO,N_(2)D^(+),SiO,H_(30)α,H_(2)CO,CH_(3)CN,and many other complex organic molecules,tracing gas components with different temperatures and spatial extents.QUARKS aims to deepen our understanding of several scientific topics of massive star formation,such as the mass transport within protoclusters by(hub-)filamentary structures,the existence of massive starless cores,the physical and chemical properties of dense cores within protoclusters,and the feedback from already formed high-mass young protostars. | 刘训川 Tie Liu Lei Zhu Guido Garay Hong-Li Liu Paul Goldsmith Neal Evans Kee-Tae Kim Sheng-Yuan Liu Fengwei Xu Xing Lu Anandmayee Tej Xiaofeng Mai Leonardo Bronfman Shanghuo Li Diego Mardones Amelia Stutz Ken'ichi Tatematsu Ke Wang Qizhou Zhang Sheng-Li Qin Jianwen Zhou Qiuyi Luo Siju Zhang Yu Cheng Jinhua He Qilao Gu Ziyang Li Zhenying Zhang Suinan Zhang Anindya Saha Lokesh Dewangan Patricio Sanhueza Zhiqiang Shen | 2024 | Research in Astronomy and Astrophysics2024,24,2: | 0 |
| 3 | Effect of Austenite Pre-deformation on Isothermal Martensite Transformation in an Fe-20.5Ni-4.8Mn Alloy显示文摘With electron microscopy the investigation on isothermal martensite transformation in an Fe20.5Ni-4.8Mn alloy has been carried out to clarify the effect of austenite state on the transformation, by applying pre-deformation to austenite before isothermal holding. Under the condition without pre-deformation, the isothermal martensite products are lath martensite with {111}fhabit planes. Dislocations in austenite seem to contribute to nucleation of martensite, and in this nascent Stage austenite substructure has no obvious effect on martensite growth. The consequent thickening of martensite laths is apparently influenced by local austenite states, resulting in the changes in orientation, morphology as well as substructure of martensite lath. The kinetics of isothermal martensite transformation is controlled by intedece dislocation determined nucleation of martensite in primary stage, but to a larger extent, by the austenite accommodation for the shape strain of martensite in the thickening | Fuxing YIN Jianxin ZHANG and Nanju GU(Hebei Institute of Technology, Tianjin, 300132, China)Tsukio Tadaki(Institute of Science and Industrial Research, Osaka University, Japan)Ken,ichi Shimizu(Kanazawa Institute of Technology, Ishigawa 921, Japan) | 1995 | Journal of Materials Science & Technology1995,11,1: | 0 |
| 4 | 深圳证券交易所显示文摘股票市场的本质是投机买卖:基于资本,而非物质。深圳证券交易所可被设想为虚拟股票市场的具体实践:这一栋拥有悬浮基座的建筑物不但能发挥物理功能,为股票市场提供场地,更重要的是它象征了股票市场。一般来说,基座用以锚固结构,并将其牢牢地与地面连接;然而,深圳证券交易所的基座却沿着塔楼从地面往高处攀升, | Kunle Adeyemi Ryann Aoukar Sebastian Appl Laura Baird Waichuen Chan Jan Dechow Lukas Drasnar Matthew Engele Leo Ferretto Clarisa Garcia Fresco Alasdair Graham Jaitian Gu Matthew Haseltine Joo Ferreira Marques Jesus Matthew Jull Alexde Jong Santiago Hierro Kennedy Klaas Kresse Miranda Lee Anna Little Luxiang Liu David Eugin Moon Cristina Murphy Se Yoon Park Ferdjan Vander Pijl Franscesca Portesine Idrees Rasouli Korbinian Schneider Wolfgang Schwarzwalder Felix Schwimmer Richard Sharam Lukasz Skalec Christine Svensson Lukasz Szlachcic Ken Yang Tan Michela Tonus Miroslav Vavrina Na Wei Xinyuan Wang Leonie Wenz Su Xia Yunchao Xu Yang Yang Yun Zhang | 2014 | 城市环境设计2014,,6: | 0 |
| 5 | Engineering human spinal microphysiological systems to model opioid-induced tolerance显示文摘pioids are commonly used for treating chronic pain.However,with continued use,they may induce tolerance and/or hyperalgesia,which limits therapeutic efficacy.The human mechanisms of opioid-induced tolerance and hyperalgesia are significantly understudied,in part,because current models cannot fully recapitulate human pathology.Here,we engineered novel human spinal microphysiological systems(MPSs)integrated with plug-and-play neural activity sensing for modeling human nociception and opioid-induced tolerance.Each spinal MPS consists of a flattened human spinal cord organoid derived from human stem cells and a 3D printed organoid holder device for plug-and-play neural activity measurement.We found that the flattened organoid design of MPSs not only reduces hypoxia and necrosis in the organoids,but also promotes their neuron maturation,neural activity,and functional development.We further demonstrated that prolonged opioid exposure resulted in neurochemical correlates of opioid tolerance and hyperalgesia,as measured by altered neural activity,and downregulation ofμ-opioid receptor expression of human spinal MPSs.The MPSs are scalable,cost-effective,easy-to-use,and compatible with commonly-used well-plates,thus allowing plug-and-play measurements of neural activity.We believe the MPSs hold a promising translational potential for studying human pain etiology,screening new treatments,and validating novel therapeutics for human pain medicine. | Hongwei Cai Zheng Ao Chunhui Tian Zhuhao Wu Connor Kaurich Zi Chen Mingxia Gu Andrea G.Hohmann Ken Mackie Feng Guo | 2023 | Bioactive Materials2023,,4: | 0 |