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1A complete sequence and comparative analysis of a SARS-associated virus(Isolate BJ01)显示文摘The genome sequence of the Severe Acute Respiratory Syndrome (SARS)-associated virus provides essential information for the identification of pathogen(s), exploration of etiology and evolution, interpretation of transmission and pathogenesis, development of diagnostics, prevention by future vaccination, and treatment by developing new drugs. We report the complete genome sequence and comparative analysis of an isolate (BJ01) of the coronavirus that has been recognized as a pathogen for SARS. The genome is 29725 nt in size and has 11 ORFs (Open Reading Frames). It is composed of a stable region encoding an RNA-dependent RNA polymerase (composed of 2 ORFs) and a variable region representing 4 CDSs (coding sequences) for viral structural genes (the S, E, M, N proteins) and 5 PUPs (putative uncharacterized proteins). Its gene order is identical to that of other known coronaviruses. The sequence alignment with all known RNA viruses places this virus as a member in the family of Coronaviridae. Thirty putative substitutions have been identified by comparative analysis of the 5 SARS- associated virus genome sequences in GenBank. Fifteen of them lead to possible amino acid changes (non-synonymous mutations) in the proteins. Three amino acid changes, with predicted alteration of physical and chemical features, have been detected in the S protein that is postulated to beinvolved in the immunoreactions between the virus and its host. Two amino acid changes have been detected in the Mprotein, which could be related to viral envelope formation. Phylogenetic analysis suggests the possibility of non-human origin of the SARS-associated viruses but provides noevidence that they are man-made. Further efforts should focus on identifying the etiology of the SARS-associated virus and ruling out conclusively the existence of otherpossible SARS-related pathogen(s).QIN E'de ZHU Qingyu YU Man FAN Baochang CHANG Guohui SI Bingyin YANG Bao PENG Wenming JIANG Tao LIU Bohua DENG Yongqiang LIU Hong ZHANG Yu WANG Cui LI Yuquan GAN Yonghua LI Xiaoyu L Fushuang TAN Gang CAO Wuchun, YANG Ruifu Institute of Microbiology and Epidemiology, Chinese Academy of Military Medical Sciences, Beijing 100071, China WANG Jian, LI Wei, XU Zuyuan, LI Yan, WU Qingfa, LIN Wei, CHEN Weijun, TANG Lin, DENG Yajun, HAN Yujun, LI Changfeng, LEI Meng, LI Guoqing, LI Wenjie, L Hong, SHI Jianping, TONG Zongzhong, ZHANG Feng, LI Songgang, LIU Bin, LIU Siqi, DONG Wei, WANG Jun, Gane K-S Wong, YU Jun & YANG Huanming* Beijing Genomics Institute, Chinese Academy of Sciences, Beijing 101300 National Center for Genome Information, Beijing 101300, China 2003Chinese Science Bulletin2003,48,10:121
2Phylogenetic reconstruction of Chirita and allies (Gesneriaceae) with taxonomic treatments显示文摘Chirita D. Don, a large genus in the subfamily Cyrtandroideae of Gesneriaceae, has been the subject of much debate whether it is a natural group or not. In addition, the highly heterogeneous Chirita has also been very problematic with regard to delimitation and subdivision. Here we used the nrDNA internal transcribed spacer and cpDNA trnL-F for molecular phylogenetic analaysis, combined with morphological data. Our results suggest that Chirita is an artificial, polyphyletic genus. The most important character that defines Chirita, the dorso-ventrally oblique and bilamellar stigma, has evolved convergently in different clades of diandrous Cyrtandroideae. Chirita sensu stricto only includes the species of Chirita sect. Chirita, whereas Chirita sect. Microchirita is an independent clade located at the basal node of the phylogenetic tree. Chirita sect. Liebigia is closely related to Didymocarpus with an entire stigma unlike other species of Chirita. The species of Chirita sect. Gibbosaccus, Chiritopsis, Primulina, and Wentsaiboea form a monophyletic group that is sister to a strongly supported clade comprising four monotypic genera Paralagarosolen, Calcareoboea, Petrocodon, and Tengia. We further analyzed the morphological evolution of Chirita and identified a series of morphological synapomorphies for the monophyletic groups revealed herein, and thereby provide a taxonomic treatment in this study.Yin-Zheng WANG Ru-Bing MAO Yan LIU Jia-Mei LI Yang DONG Zhen-Yu LI James E SMITH 2011Journal of Systematics and Evolution2011,49,1:30
3根据非线性贝叶斯理论的界面波频散曲线反演显示文摘通过时频分析法从海底环境噪声数据中提取界面波频散曲线,进而采用非线性贝叶斯反演方法估算海底沉积物厚度、剪切波速度、压缩波速度和密度等参数及其不确定性。参数的最大后验概率(MAP)估计值和边缘概率分布分别通过自适应单纯形模拟退火法和Metropolis-Hastings采样法在各参数先验区间内搜索获得,采用贝叶斯信息准则(BIC)从不同参数化模型中选择最优模型。界面波频散曲线反演结果表明:满足实测数据的最优海底模型结构为3层均匀分布剪切波速度剖面结构,海底深度的反演精度在800m以内,比起压缩波速度和密度,剪切波速度的不确定性更小,对界面波频散曲线更敏感。李翠琳 Stan E Dosso Hefeng Dong 2012声学学报2012,37,3:10
4Comparison between cerebral state index and bispectral index as measures of electroencephalographic effects of sevoflurane using combined sigmoidal Emax model显示文摘目的: 服的州的索引(CSI ) 最近为测量麻醉的深度作为一个 electroencephalographic 监视器被介绍。我们作为 sevoflurane 的措施完成使用二联合 sigmoidal E 最大 模型。Dong Woo HAN Olinto-Jose LINARES-PERDOMO Jong Seok LEE Jun Ho KIM Steven E KERN 2011Acta Pharmacologica Sinica2011,32,10:9
5A DELLA protein complex controls the arbuscular mycorrhizal symbiosis in plants显示文摘Nan Yu Dexian Luo Xiaowei Zhang Junzhong Liu Wanxiao Wang Yue Jin Wentao Dong Jiyun Liu Huan Liu Weibing Yang Longjun Zeng Qun Li Zuhua He Giles E D Oldroyd Ertao Wang 2014Cell Research2014,24,1:9
6Residual Fatigue Life Prediction of Ball Bearings Based on Paris Law and RMS显示文摘Paris law can reflect the failure mechanism of materials and is usually used to be a method to predict fatigue life or residual fatigue life.But the variable which can represent the health of machine is hardly measured on line.To a degree,the difficulty of on-line application restricts the scope of application of Paris law.The relationship between characteristic values of vibration signals and the variable in the Paris equation which can describe the health of machine is investigated by taking ball bearings as investigative objects.Based on 6205 deep groove ball bearings as a living example,historical lives and vibration signals are analyzed.The feasibility of describing that variable in the Paris equation by the characteristic value of vibration signals is inspected.After that vibration signals decomposed by empirical mode decomposition(EMD),root mean square(RMS) of intrinsic mode function(IMF) involving fault characteristic frequency has a consistent trend with the diameter of flaws.Based on the trend,two improved Paris models are proposed and the scope of application of them is inspected.These two Paris Models are validated by fatigue residual life data from tests of rolling element bearings and vibration signals monitored in the process of operation of rolling element bearings.It shows that the first improved Paris Model is simple and plain and it can be easily applied in actual conditions.The trend of the fatigue residual life predicted by the second improved Paris model is close to the actual conditions and the result of the prediction is slightly greater than the truth.In conclusion,after the appearance of detectable faults,these improved models based on RMS can predict residual fatigue life on line and a new approach to predict residual fatigue life of ball bearings on line without disturbing the machine running is provided.XU Dong HUANG Jin'e ZHU Qin CHEN Xun XU Yongcheng WANG Shuang 2012Chinese Journal of Mechanical Engineering2012,25,2:6
7N_2O emissions from agricultural soils in the North China Plain: the effect of chemical nitrogen fertilizer and organic manure显示文摘An enclosed chamber technique was used to measure N 2O emissions from intensively agricultural soils of the North China Plain during the periods of 1995—1996 and 1997—1998, to reflect distinct components of winter wheat and summer maize growing seasons. The results showed that the continuous application of fertilizer in agricultural soils increased N\-2O emissions by a factor of 24.1—28.1, the calculated annual chemical N fertilizer\|transformed N\-2O\|N emissions was 0.67%. Our results indicated that the application of organic manure also had a significant influence on soil N 2O emissions, which combined with the use of chemical N increased about 20% in a year. It was calculated that there were about 0.11% N of organic manure transformed as N 2O N. Annual mean N 2O emission from our study area of fertilized soils was estimated to be 57.1 μgN 2O/(m 2·h). A weak correlation was also found between N 2O emissions and soil available nitrogen content NH + 4.DONG Yun\|she 1,2,3 , Dieter Scharffe 2, Manfred Domroes 3, QI Yu chun 1, ZHANG Shen 1 (1. Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China E\|mail: dongys@dls.iog.ac.cn 2. M 2000Journal of Environmental Sciences2000,12,4:6
8High power and stable P-doped yolk-shell structured Si@C anode simultaneously enhancing conductivity and Li^(+)diffusion kinetics显示文摘Silicon is a low price and high capacity ancxje material for lithium-ion batteries.The yolk-shell structure can effectively accommodate Si expansion to improve stability.However,the limited rate performance of Si anodes can't meet people's growing demand for high power density.Herein,the phosphorus-doped yolk-shell Si@C materials(P-doped Si@C)were prepared through carbon coating on P-doped Si/SiO_(x)matrix to obtain high power and stable devices.Therefore,the as-prepared P-doped Si@C electrodes delivered a rapid increase in Coulombic efficiency from 74.4%to 99.6%after only 6 cycles,high capacity retention of-95%over 800 cycles at 4 A·g^(-1),and great rate capability(510 mAh·g^(-1)at 35 A·g^(-1)).As a result,P-doped Si@C anodes paired with commercial activated carbon and LiFePO_(4)cathode to assemble lithium-ion capacitor(high power density of〜61,080 W·kg^(-1)at 20 A·g^(-1))and lithium-ion full cell(good rate performance with 68.3 mAh·g^(-1)at 5 C),respectively.This work can provide an effective way tofurther improve power density and stability for energy storage devices.Ming Chen Qinnan Zhou Jiantao Zai Asma Iqbal TsegayeTadesse Tsega Boxu Dong Xuejiao Liu Yuchi Zhang Changyu Yan Liang Zhao Ali Nazakat SharelPeisan E CheeTongJohn Low Xuefeng Qian 2021Nano Research2021,14,4:5
9Transportation Development Transition in China显示文摘Scientific development is an invaluable asset to a country.Policies and development modes should be carried out based on scientific findings not only in industry,but also in transportation infrastructure construction.Building an integrated transportation system,which is in line with the national requirements of China and supports sustainable socio-economic development,is a key strategic issue related to building a moderately prosperous society and achieving realistic goals of a medium-level developed country.Based on a systematic review of the advances in China's transportation infrastructure over the last 60 years,this paper explores the main drivers of transportation development,including national policy,transportation structure,investment efficiency,and technological innovation.Analysis shows that China's comprehensive transportation infrastructure construction since 1949 can be divided into five stages initiated by these drivers,which correspond to four transition modes:policy transition,structural transition,efficiency transition,and technology transition.The transition path of China's transportation development shows that the dominant factors have changed,and the interval for each transition has shortened.With the implementation of the '12th Five-Year Plan',China's transportation infrastructure construction is showing some new characteristics and facing a new development transition.Finally,this paper analyzes the trends in transportation development in China and concludes that technological innovation will be the main driving force to increase the transportation supply and service area in the future.JIN Fengjun DING Jinxue WANG Jiao'e LIU Dong WANG Chengjin 2012Chinese Geographical Science2012,22,3:4
10Prognostic value of perioperative leukocyte count in resectable gastric cancer显示文摘AIM: To investigate the prognostic significance of perioperative leukopenia in patients with resected gastric cancer.METHODS: A total of 614 eligible gastric cancer patients who underwent curative D2 gastrectomy and adjuvant chemotherapy were enrolled in this study. The relationship between pre- and postoperative hematologic parameters and overall survival was assessed statistically, adjusted for known prognostic factors.RESULTS: The mean white blood cell count(WBC) significantly decreased after surgery, and 107/614(17.4%) patients developed p-leukopenia, which was defined as a preoperative WBC ≥ 4.0 × 109/L and postoperative WBC < 4.0 × 109/L, with an absolute decrease ≥ 0.5 × 109/L. The neutrophil count decreased significantly more than the lymphocyte count. P-leukopenia significantly correlated with poor tumor differentiation and preoperative WBC. A higher preoperative WBC and p-leukopenia were independent negative prognostic factors for survival [hazard ratio(HR) = 1.602, 95% confidence interval(CI): 1.185-2.165; P = 0.002, and HR = 1.478, 95%CI: 1.149-1.902; P = 0.002, respectively] after adjusting for histology, Borrmann type, p TNM stage, vascular or neural invasion, gastrectomy method, resection margins, chemotherapy regimens, and preoperative WBC count. The patients with both higher preoperative WBC and p- leukopenia had a worse prognosis compared to those with lower baseline WBC and no p-leukopenia(27.5 mo vs 57.3 mo, P < 0.001). CONCLUSION: Preoperative leukocytosis alone or in combination with postoperative leukopenia could be independent prognostic factors for survival in patients with resectable gastric cancer.Xiao-Feng Chen Jing Qian Dong Pei Chen Zhou Oluf Dimitri R?e Fang Zhu Shao-Hua He Ying-Ying Qian Yue Zhou Jun Xu Jin Xu Xiao Li Guo-Qiang Ping Yi-Qian Liu Ping Wang Ren-Hua Guo Yong-Qian Shu 2016World Journal of Gastroenterology2016,22,9:4
11低密度脂蛋白和高密度脂蛋白相对全蛋黄溶液在猕猴精子低温冷冻中的作用显示文摘最近,住各种动物精子低温冷冻的实验中,提取于鸡蛋蛋黄中的低密度脂蛋白被视为优于全蛋黄溶液。与此同时,有研究认为蛋黄中的高密度脂蛋白可能对解冻后精子的生存产生负面影响。关于低密度脂蛋白和高密度脂蛋白在猕猴精子低温冷冻作用的研究还未有过报道。本研究在加和不加渗透型抗冻剂(甘油)两种情况下,通过与全蛋黄溶液对比的手段评价了两种脂蛋白在猕猴精子低温冷冻中的作用。此外,本研究也尝试多种能够改造精于膜与低密度脂蛋白结合体成分的添加剂对保存解冻精子活力的作用。我们的实验结果表明,低密度脂蛋白是伞蛋黄溶液在猕猴精子低温冷冻中发挥保护作用的主要成分。不管有无添加甘油,低密度脂蛋白与令蛋黄溶液在保存解冻精子活性方面作用相近,并未显现出任何优越性。通过加入胆同醇、胆固醇环糊精复合物或卵磷脂来改变精子膜与低密度脂蛋白结合体成分的方法并未改善解冻精子的存活状况;但加入甲基-β-环糊精则明显降低解冻精于的活力。高密度脂蛋白对猕猴精子低温冷冻保存不存在负面影响。对猕猴精子低温冷冻保存而言,本研究表明全蛋黄溶液相比较于稀释液中的有效成分低密度脂蛋白仍然具有优越性。Qiao-Xiang Dong Sarah E Rodenburg Dana Hill Catherine A VandeVoort 2011Asian Journal of Andrology2011,13,3:4
12Effect of garlic and garlic-green tea mixture on serum lipids in MNNG-induced experimental gastriccarcinoma and precancerous lesion显示文摘EfectofgarlicandgarlicgreenteamixtureonserumlipidsinMNNGinducedexperimentalgastriccarcinomaandprecancerouslesionSUQi,LUOZh...SU Qi, LUO Zhao Yang, TENG Hua, YUN Wei Dong, Li Yi Qing and HE Xin E Institute of Oncology, Hengyang Medical College, Hengyang 421001, Hunan Province, China 1998World Journal of Gastroenterology1998,4,1:4
13Parkin deficiency accentuates chronic alcohol intake-induced tissue injury and autophagy defects in brain,liver and skeletal muscle显示文摘Alcoholism leads to organ injury including mitochondrial defect and apoptosis with evidence favoring a role for autophagy dysregulation in alcoholic damage.Parkin represents an autosomal recessive in herited gene for Parkins on's disease and an important member of selective autophagy for mitoch on dria.The associati on between Parkins on's disease and alcoholic injury remains elusive.This study aimed to examine the effect of parki n deficiency on chr onic alcohol in takeinduced organ injury in brain,liver and skeletal muscle(rectus femoris muscle).Adult parkinknockout(PRK-/-)and wild-type mice were placed on Liber-De Carli alcohol liquid diet(4%)for 12 weeks prior to assessment of liver enzymes,intraperitoneal glucose toleranee,protein carbonyl content apoptosis,hematoxylin and eosin morphological staining,and mitochondrial respiration(cytochrome c oxidase,NADH:cytochrome c reductase and succinate:cytochrome c reductase).Autophagy protein markers were monitored by western blot analysis.Our data revealed that chronic alcohol intake imposed liver injury as evidenced by elevated aspartate aminotransferase and alanine transaminase,glucose intoleranee,elevated protein carbonyl formation,apoptosis,focal inflammation,necrosis,microvesiculation,autophagy/mitophagy failure and dampened mitochondrial respiration(complexⅣ,complexesⅠandⅢ,and complexesⅡandⅢ)in the brain,liver and rectus femoris skeletal muscle.Although parkin ablation itself did not generate any notable effects on liver enzymes,insulin sensitivity,tissue carbonyl damage,apoptosis,tissue morphology,autophagy or mitochondrial respiration,it accentuated alcohol intake-induced tissue damage,apoptosis,morphological change,autophagy/mitophagy failure and mitochondrial injury without affecting insulin sensitivity.These data suggest that parkin plays an integral role in the preservation against alcohol-induced organ injury,apoptosis and mitochondrial damage.Hu Peng Xing Qin Sainan Chen Asli E Ceylan Maolong Dong Zhaofen Lin Jun Ren 2020Acta Biochimica et Biophysica Sinica2020,52,6:3
14Differential expression of meat quality and intramuscular fat deposition related genes in Hanjiang black pigs显示文摘Guofang Wu Xin'e Shi Jiping Zhou Lei Wang Yuefeng Li Chengchuang Song Aoqi Xiang Peiyue Dong Shiduo Sun 2014Acta Biochimica et Biophysica Sinica2014,46,12:3
15A preliminary study of level 1A data processing of a low-low satellite to satellite tracking mission显示文摘With the Gravity Recovery and Climate Experiment(GRACE)mission as the prime example,an overview is given on the management and processing of Level 1A data of a low-low satellite to satellite tracking mission.To illustrate the underlying principle and algorithm,a detailed study is made on the K-band ranging(KBR)assembly,which includes the measurement principles,modeling of noises,the generation of Level 1A data from that of Level0 as well as Level 1A to Level 1B data processing.Xu Peng Qiang Li'e Bian Xing Dong Peng Ju Peng Gao Wei Gong Xuefei Luo Ziren Shao Mingxue Tang Werilin Wan Xiaoyun Lau Yun-Kau 2015Geodesy and Geodynamics2015,6,5:2
16A Nitrogen-Fixing Endophyte of Sugarcane Stems(A New Role for the Apoplast)显示文摘Dong Z Canny M J McCully M E 1994American Society of Plant Biologists1994,105,4:1
17Seed-mediated synthesis of branched gold nanoparticles with the assistance of citrate and their surface-enhanced Raman scattering properties显示文摘Zou X Q Ying E B Dong S J 2006Nanotechnol2006,17,:1
18Reduced intracellular T-helper 1 interferon-gamma in blood of newly diagnosed children with Crohng disease and age-related changes in Th1/Th2 cytokine profiles 显示文摘Holland N Dong J Garnett E 2008Pediatr Res2008,63,3:1
19显示文摘Guo S J Dong S J Wang E K 2008Cryst Growth Des2008,8,10:1
20Coordination-induced formation of submicrometer-scale, monodisperse, spherical colloids of organic- inorganic hybrid materials at room temperature 显示文摘SUN X P DONG S J WANG E K 2005J Am Chem Soe2005,127,13:1
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