群雄鏖战西班牙 落英荟萃马德里——2006年世界羽毛球锦标赛夺冠实录     

Liang 《网羽世界》2006,(11)

男子单打冠军:林丹男子单打首轮:男单选手鲍春来为中国羽毛球队打响本次世锦赛的第一战。鲍春来以2比0比分战胜俄罗斯选手普霍夫,两局的比分是21比15和21比12。另一名中国选手陈宏以21比11、21比9的比分连下两局,战胜了危地马拉选手佩德罗-扬。男单比赛首轮中国选手林丹、陈金、头号种子李宗伟和四号种子盖德都轮空,他们直接参加第二轮比赛。  相似文献   

Bullying, violence, and risk behavior in South African school students     

Liang H  Flisher AJ  Lombard CJ 《Child abuse & neglect》2007,31(2):161-171

OBJECTIVES: To examine the prevalence of bullying behavior in adolescents from Cape Town and Durban, South Africa, and the association of these behaviors with levels of violence and risk behavior. METHOD: Five thousand and seventy-four adolescent schoolchildren in grade 8 (mean age 14.2 years) and grade 11 (mean age 17.4 years) at 72 Government schools in Cape Town and Durban, South Africa completed self-report questionnaires on participation in bullying, violent, anti-social and risk behaviors. RESULTS: Over a third (36.3%) of students were involved in bullying behavior, 8.2% as bullies, 19.3% as victims and 8.7% as bully-victims (those that are both bullied and bully others). Male students were most at risk of both perpetration and victimization, with younger boys more vulnerable to victimization. Violent and anti-social behaviors were increased in bullies, victims and bully-victims compared to controls not involved in any bullying behavior (p<.01 in all cases). Risk taking behavior was elevated for bullies and bully-victims, but for victims was largely comparable to controls. Victims were less likely to smoke than controls (odds ratio .83, p<.05). Bully-victims showed largely comparable violent, anti-social and risk taking behavior profiles to bullies. Bully-victims showed comparable suicidal ideation and smoking profiles to victims. CONCLUSIONS: Results were in keeping with Western findings. Involvement in bullying is a common problem for young South Africans. Bullying behavior can act as an indicator of violent, anti-social and risk-taking behaviors.  相似文献   

Manipulating Hubbard-type Coulomb blockade effect of metallic wires embedded in an insulator     

Xing Yang  Zhao-Long Gu  Huimin Wang  Jing-Jing Xian  Sheng Meng  Naoto Nagaosa  Wen-Hao Zhang  Hai-Wen Liu  Zi-Heng Ling  Kai Fan  Zhi-Mo Zhang  Le Qin  Zhi-Hao Zhang  Yan Liang  Jian-Xin Li  Ying-Shuang Fu 《国家科学评论(英文版)》2023,(3):127-133

Correlated states have emerged in low-dimensional systems owing to enhanced Coulomb interactions.Elucidating these states requires atomic-scale characterization and delicate control capabilities.Herein,spectroscopic imaging-scanning tunneling microscopy was employed to investigate the correlated states residing in 1D electrons of the monolayer and bilayer MoSe2 mirror twin boundary(MTB).The Coulomb energies,determined by the wire length,drive the MTB into two types of ground states with distinct...  相似文献   

Learning physical characteristics like animals for legged robotsOA     

Peng Xu  Liang Ding  Zhengyang Li  Huaiguang Yang  Zhikai Wang  Haibo Gao  Ruyi Zhou  Yang Su  Zongquan Deng  Yanlong Huang 《国家科学评论(英文版)》2023,(5):22-37

Physical characteristics of terrains,such as softness and friction,provide essential information for legged robots to avoid non-geometric obstacles,like mires and slippery stones,in the wild.The perception of such characteristics often relies on tactile perception and vision prediction.Although tactile perception is more accurate,it is limited to close-range us e;by contrast,establishing a supervised or self-supervised contactless prediction system using computer vision re quires adequate labele...  相似文献   

New constraints on exotic spin-dependent interactions with an ensemble-NV-diamond magnetometerOA     

Hang Liang  Man Jiao  Yue Huang  Pei Yu  Xiangyu Ye  Ya Wang  Yijin Xie  Yi-Fu Cai  Xing Rong  Jiangfeng Du 《国家科学评论(英文版)》2023,(7):107-113

Laboratory search of exotic interactions is crucial for exploring physics beyond the standard model.We report new experimental constraints on two exotic spin-dependent interactions at the micrometer scale based on ensembles of nitrogen-vacancy(NV) centers in diamond.A thin layer of NV ele ctronic spin ensembles is synthesized as the solid-state spin quantum sensor,and a lead sphere is taken as the interacting nucleon source.Our result establishes new bounds for two types of exotic spin interacti...  相似文献   

Effect of microcystin-LR on protein phosphatase 2A and its function in human amniotic epithelial cells     

Liang J  Li T  Zhang YL  Guo ZL  Xu LH 《Journal of Zhejiang University. Science. B》2011,12(12):951-960

Due to their toxicity, the increased distribution of microcystins (MCs) has become an important worldwide problem. MCs have been recognized as inhibitors of protein phosphatase 2A (PP2A) through their binding to the PP2A catalytic subunit. However, the exact mechanism of MC toxicity has not been elucidated, especially concerning the cellular response and its autoregulation. To further dissect the role of PP2A in MC-induced toxicity, the present study was undertaken to determine the response of PP2A in human amniotic epithelial (FL) cells treated with microcystin-LR (MCLR), one of the MC congeners. The results show that a low-dose treatment of MCLR in FL cells for 6 h induced an increase in PP2A activity, and a high-dose treatment of MCLR for 24 h decreased the activity of PP2A, as expected. The increased mRNA and protein levels of the PP2A C subunit may explain the increased activity of PP2A. Furthermore, MCLR altered microtubule post-translational modifications through PP2A. These results further clarify the underlying mechanism how MCLR affects PP2A and may be helpful for elucidating the complex toxicity of MCLR.  相似文献   

Microstructure and hardness of Cu-12% Fe composite at different drawing strains简     

Xiao-pei LU  Da-wei YAO  Yi CHEN  Li-tian WANG  An-ping DONG  Liang MENG  Jia-bin LIU 《浙江大学学报(A卷英文版)》2014,15(2):149-156

Cu-12% Fe （in weight） composite was prepared by casting, pretreating, and cold drawing. The microstructure was observed and Vickers hardness was measured for the composite at various drawing strains. Cu and Fe grains could evolve into aligned filaments during the drawing process. X-ray diffraction （XRD） was used to analyze the orientation evolution during the drawing process. The axial direction of the filamentary structure has different preferred orientations from the radial directions. The strain of Fe grains linearly increases with an increase in the drawing strain up to 6.0, and deviates from the linear relation when the drawing strain is higher than 6.0. With an increase in the drawing strain, the microstructure scales of Fe filaments exponentially decrease. The density of the interface between Cu and Fe phases exponentially increases with an increase in the aspect ratio of Fe filaments. There is a similar Hall-Perch relationship between the hardness and Fe filament spacing. The refined microstructure from drawing deformation at drawing strains lower than 3.0 can induce a more significant hardening effect than that at drawing strains higher than 3.0.  相似文献   

Noun-Inspiring Theme in Poetic Translation—On Noun Translation Governed by Theme of Classical Chinese Poetry     

YAN Liang  ZENG Li-sha 《海外英语》2014,(11):162-165

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NANJING MUSEUM     

Gong Liang 《中外文化交流(英文版)》2006,(5):16-19

Nanjing Museum, with an area of 70,000 square meters, is located at the southern foot of the beautiful Purple Gold Mountain, withZhongshan Gate of the city wall on its east side and the remains of the imperial palace of the early Ming Dynasty on its west side. The museum＂s south gate faces the tree-lined boulevard leading to Xiaoling Mausoleum of the first Ming emperor and Sun Yat-Sen Mausoleum. At the entrance of the museum stands a pair of archways resembling Han-sMe watchtowers. The garden where the museum buildings are set is spacious and quiet, full of exuberant vegetations.  相似文献   

Effect of high glucose levels on the calcification of vascular smooth muscle cells by inducing osteoblastic differentiation and intracellular calcium deposition via BMP-2/Cbfα-1 pathway     

Liu F  Zhong H  Liang JY  Fu P  Luo ZJ  Zhou L  Gou R  Huang J 《Journal of Zhejiang University. Science. B》2010,11(12):905-911

In this paper,we investigate the effect and the possible mechanism of high glucose levels on the calcification of human aortic smooth muscle cells (HASMCs).HASMCs were divided into four groups: normal glucose group (NG),osmolality control group (OC),high glucose group (HG,HASMCs culture medium containing 30 mmol/L glucose),and high glucose plus recombinant human Noggin protein (bone morphogenetic protein-2 (BMP-2) antagonist) group (HN).The mRNA levels and the protein expressions of BMP-2 and core binding factor alpha-1 (Cbfα-1) were measured by real-time quantitative polymerase chain reaction (PCR) and Western blot.After induced by 10 mmol/L β-glycerol phosphoric acid,cells were harvested for assessments of alkaline phosphatase (ALP) activities at Days 1,2,and 3,and intracellular calcium contents at Days 7 and 14,respectively.High glucose levels increased the mRNA levels and the protein expressions of BMP-2 and Cbfα-1 (P0.05).The expression of Cbfα-1 was partially blocked by Noggin protein (P0.05),while BMP-2 was not (P0.05).After being induced by β-glycerol phosphoric acid,high glucose levels increased the ALP activity [(48.63±1.03) vs.(41.42±2.28) U/mg protein,Day 3;P0.05] and the intracellular calcium content [(2.76±0.09) vs.(1.75±0.07) μmol/mg protein,Day 14;P0.05] in a time-dependent manner when compared with the NG group,while the ALP activity could not be blocked by Noggin protein [(48.63±1.03) vs.(47.37±0.97) U/mg protein,Day 3;P0.05].These results show that high glucose levels can evoke the calcification of HASMCs by inducing osteoblastic trans-differentiation and intracellular calcium deposition via the BMP-2/Cbfα-1 pathway,which can be partially blocked by Noggin protein.  相似文献