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1Apoptosis and its relationship with cell proliferation,p53,Waf1p21,bcl-2 and c-mycin esophageal carcinogenesis studied with a high-risk population in northern China显示文摘Apoptosisanditsrelationshipwithcelproliferation,p53,Waf1p21,bcl2andcmycinesophagealcarcinogenesisstudiedwithahighriskpopul...WANG LiDong1, ZHOU Qi1, WEI JunPing1, YANG WanCai1, ZHAO Xin1, WANG LiXia1, ZOU Jian Xiang1, GAO ShanShan1, LI YongXin1 and YANG C.S.2Keywords esophageal neoplasms apoptosis precancerous lesions Waf1 p21 gene p53 1998World Journal of Gastroenterology1998,4,4:295
2Outline of the Report on Cardiovascular Disease in China,2010显示文摘Major and profound changes have taken place in China over the past 30 years.Rapid socioeconomic progress has exerted a great impact on lifestyle,ranging from food,clothing,working and living conditions,and means of transportation to leisure activities and entertainment.At the same time,new health problems have emerged,and health services are facing new challenges.Presently,cardiovascular diseases (CVD) are among the top health problems of the Chinese people,and pose a serious challenge to all engaged in the prevention and control of these diseases.An epidemic of CVD in China is emerging as a result of lifestyle changes,urbanization and longevity.Both national policy decision-making and medical practice urgently need an authoritative report which comprehensively reflects the trends in the epidemic of CVD and current preventive measures.Since 2005,guided by the Bureau of Disease Prevention of the Ministry of Health of the People's Republic of China and the National Center for Cardiovascular Diseases of China,nationwide experts in the fields of epidemiology,clinical medicine and health economics in the realms of CVD,cerebrovascular disease,diabetes and chronic kidney disease,completed the Report on Cardiovascular Diseases in China every year.The report aims to provide a timely review of the trend of the epidemic and to assess the progress of prevention and control of CVD.In addition,as the report is authoritative,representative and readable,it will become an information platform in the CVD field and an important reference book for government,academic institutes,medical organizations and clinical physicians.This publication is expected to play a positive role in the prevention and control of CVD in China.We present an abstract from the Report on Cardiovascular Diseases in China (2010),including trends in CVD,morbidity and mortality of major CVDs,up-to-date assessment of risk factors,as well as health resources for CVD,and a profile of medical expenditure,with the aim of providing evidence for decision-making in CVD prevention and control programs in China,and of delivering the most authoritative information on CVD prevention and control for all citizens.HUSheng Shou KONG Ling Zhi GAO Run Lin ZHU Man Lu WANG Wen WANG Yong Jun WU Zhao Su CHEN Wei Wei LIU Ming Bo For the editorial board 2012Biomedical and Environmental Sciences2012,25,3:93
3Prevalence of Nontraumatic Osteonecrosis of the Femoral Head and its Associated Risk Factors in the Chinese Population: Results from a Nationally Representative Survey显示文摘De-Wei Zhao Mang Yu Kai Hu Wei Wang Lei Yang Ben-Jie Wang Xiao-Hong Gao Yong-Ming Guo Yong-Qing Xu Yu-Shan Wei Si-Miao Tian Fan Yang Nan Wang Shi-Bo Huang Hui Xie Xiao-Wei Wei Hai-Shen Jiang Yu-Qiang Zang Jun Ai Yuan-Liang Chen Guang-Hua Lei Yu-Jin Li Geng Tia Zong-Sheng Li Yong Cao Li Ma 2015Chinese Medical Journal2015,,21:151
4A rapid advice guideline for the diagnosis and treatment of 2019 novel coronavirus(2019-nCoV) infected pneumonia(standard version)显示文摘In December 2019, a new type viral pneumonia cases occurred in Wuhan, Hubei Province;and then named '2019 novel coronavirus(2019-nCoV)' by the World Health Organization(WHO) on 12 January 2020. For it is a never been experienced respiratory disease before and with infection ability widely and quickly, it attracted the world’s attention but without treatment and control manual. For the request from frontline clinicians and public health professionals of 2019-nCoV infected pneumonia management, an evidence-based guideline urgently needs to be developed. Therefore, we drafted this guideline according to the rapid advice guidelines methodology and general rules of WHO guideline development;we also added the first-hand management data of Zhongnan Hospital of Wuhan University. This guideline includes the guideline methodology, epidemiological characteristics, disease screening and population prevention, diagnosis, treatment and control(including traditional Chinese Medicine), nosocomial infection prevention and control, and disease nursing of the 2019-nCoV. Moreover, we also provide a whole process of a successful treatment case of the severe 2019-nCoV infected pneumonia and experience and lessons of hospital rescue for 2019-nCoV infections. This rapid advice guideline is suitable for the first frontline doctors and nurses, managers of hospitals and healthcare sections, community residents, public health persons, relevant researchers, and all person who are interested in the 2019-nCoV.Ying-Hui Jin Lin Cai Zhen-Shun Cheng Hong Cheng Tong Deng Yi-Pin Fan Cheng Fang Di Huang Lu-Qi Huang Qiao Huang Yong Han Bo Hu Fen Hu Bing-Hui Li Yi-Rong Li Ke Liang Li-Kai Lin Li-Sha Luo Jing Ma Lin-Lu Ma Zhi-Yong Peng Yun-Bao Pan Zhen-Yu Pan Xue-Qun Ren Hui-Min Sun Ying Wang Yun-Yun Wang Hong Weng Chao-Jie Wei Dong-Fang Wu Jian Xia Yong Xiong Hai-Bo Xu Xiao-Mei Yao Yu-Feng Yuan Tai-Sheng Ye Xiao-Chun Zhang Ying-Wen Zhang Yin-Gao Zhang Hua-Min Zhang Yan Zhao Ming-Juan Zhao Hao Zi Xian-Tao Zeng Yong-Yan Wang Xing-Huan Wang 2020Military Medical Research2020,7,1:161
5China Stroke Statistics 2019:A Report From the National Center for Healthcare Quality Management in Neurological Diseases,China National Clinical Research Center for Neurological Diseases,the Chinese Stroke Association,National Center for Chronic and Non-communicable Disease Control and Prevention,Chinese Center for Disease Control and Prevention and Institute for Global Neuroscience and Stroke Collaborations显示文摘China faces the greatest challenge from stroke in the world.The death rate for cerebrovascular diseases in China was 149.49 per 100000,accounting for 1.57 million deaths in 2018.It ranked third among the leading causes of death behind malignant tumours and heart disease.The age-standardised prevalence and incidence of stroke in 2013 were 1114.8 per 100000 population and 246.8 per 100000 person-years,respectively.According to the Global Burden of Disease Study 2017,the years of life lost(YLLs)per 100000 population for stroke increased by 14.6%;YLLs due to stroke rose from third highest among all causes in 1990 to the highest in 2017.The absolute numbers and rates per 100000 population for all-age disability-adjusted life years(DALYs)for stroke increased substantially between 1990 and 2017,and stroke was the leading cause of all-age DALYs in 2017.The main contributors to cerebrovascular diseases include behavioural risk factors(smoking and alcohol use)and pre-existing conditions(hypertension,diabetes mellitus,dyslipidaemia and atrial fibrillation(AF)).The most prevalent risk factors among stroke survivors were hypertension(63.0%-84.2%)and smoking(31.7%-47.6%).The least prevalent was AF(2.7%-7.4%).The prevalences for major risk factors for stroke are high and most have increased over time.Based on the latest national epidemiological data,26.6%of adults aged≥15 years(307.6 million adults)smoked tobacco products.For those aged≥18 years,age-adjusted prevalence of hypertension was 25.2%;adjusted prevalence of hypercholesterolaemia was 5.8%;and the standardised prevalence of diabetes was 10.9%.For those aged≥40 years,the standardised prevalence of AF was 2.31%.Data from the Hospital Quality Monitoring System showed that 3010204 inpatients with stroke were admitted to 1853 tertiary care hospitals during 2018.Of those,2466785(81.9%)were ischaemic strokes(ISs);447609(14.9%)were intracerebral haemorrhages(ICHs);and 95810(3.2%)were subarachnoid haemorrhages(SAHs).The average age of patients admitted was 66 years old,and nearly 60%were male.A total of 1555(0.1%),2774(0.6%)and 1347(1.4%)paediatric strokes(age<18 years)were identified among IS,ICH and SAH,respectively.Over one-third(1063892(35.3%))of the patients were covered by urban resident basic medical insurance,followed by urban employee basic medical insurance(699513(23.2%))and new rural cooperative medical schema(489361(16.3%)).The leading risk factor was hypertension(67.4%for IS,77.2%for ICH and 49.1%for SAH),and the leading comorbidity was pneumonia or pulmonary infection(10.1%for IS,31.4%for ICH and 25.2%for SAH).In-hospital death/discharge against medical advice rate was 8.3%for stroke inpatients,ranging from 5.8%for IS to 19.5%for ICH.The median and IQR of length of stay was 10.0(7.0-14.0)days,ranging from 10.0(7.0-13.0)in IS to 14.0(8.0-22.0)in SAH.Data from the Chinese Stroke Center Alliance demonstrated that the composite scores of guideline-recommended key performance indicators for patients with IS,ICH and SAH were 0.77±0.21,0.72±0.28 and 0.59±0.32,respectively.Yong-Jun Wang Zi-Xiao Li Hong-Qiu Gu Yi Zhai Yong Jiang Xing-Quan Zhao Yi-Long Wang Xin Yang Chun-Juan Wang Xia Meng Hao Li Li-Ping Liu Jing Jing Jing Wu An-Ding Xu Qiang Dong David Wang Ji-Zong Zhao On behalf of China Stroke Statistics 2019 Writing Committee 2020Stroke & Vascular Neurology2020,5,3:181
6Discovery of ultrahigh-pressure magnesite-bearing garnet lherzolite (>3.8 GPa) in the Altyn Tagh, Northwest China显示文摘Magnesite-bearing garnet Iherzolite from the Altyn Tagh, associated with garnet pyroxenite, and garnet-bearing felsic gneiss, crops out as lenses in Proterozoic gneiss about 100 km east of the Jianggelasayi River. The garnet Iherzolite, together with the eclogite in western Jianggelasayi, composes a high-pressure to ultrahigh-pressure metamorphic belt in the southern margin of the Altyn Tagh. Parageneses of minerals from magnesite-bearing garnet Iherzolite indicate that the rock evolved a multi-stage metamorphism. The peak-stage metamorphism produces an assemblage of Grt+Ol+Opx+Cpx±Mgs, in which A12O3 content of Opxis very low (0.30-0.66wt%). The calculated P-T condition of the peak stage is 3.8-5.lGPa and 880-970°C, some exsolution rods of clinopyroxene and rutile occur in the Grt and magnesite is rimed by dolomite and orthopyroxene, all implying that the peak stage was a UHP metamorphic process. Together with regional geological studies, isotopic dating and the discovery of coesite inclusions inLIU Liang, SUN Yong, XIAO Peixi, CHE Zicheng, LUO Jinhai, CHEN Danling, WANG Yan, ZHANG Anda, CHEN Liang & WANG YongheKey Laboratory of Continental Dynamics of the Ministry of Education, Northwest University, Xi’an 710069, China The Northwest Institute of 2002Chinese Science Bulletin2002,47,11:69
7Soybean GmMYB76, GmMYB92, and GmMYB177 genes confer stress tolerance in transgenic Arabidopsis plants显示文摘MYB 类型抄写因素包含保存 MYB 约 50 氨基酸的 DNA 有约束力的领域并且涉及植物生长,开发,新陈代谢和应力的许多方面的规定回答。从大豆植物,我们识别了 156 GmMYB 基因用我们的以前获得了 206 MYB unigenes,并且 48 被发现有全身的开读物的框架。所有这些识别基因的表情被检验,并且我们发现 43 基因的表情与骆驼毛的织物,盐,干旱或冷应力在处理之上被改变。三 GmMYB 基因, GmMYB76, GmMYB92 和 GmMYB177,为进一步的分析被选择。用酵母试金系统, GmMYB76 和 GmMYB92 被发现有 transactivation 活动和罐头形式 homodimers。GmMYB177 不看起来举办 transactivation 活动,但是能与 GmMYB76 形成 heterodimers。酵母一个混血儿试金表明三 GmMYBs 能绑在 cis 元素的所有梭织 AAC GGT TTT TT 和 CCG GAA AAA AGG 在,但是与不同亲密关系,并且 GmMYB92 能也绑在 TCT CAC CTA CC。转基因的 Arabidopsis 植物 overexpressing GmMYB76 或 GmMYB177 在盐和结冰忍耐比 GmMYB92 转基因的植物显示出更好的性能。然而,这些转基因的植物与野类型的植物比较在萌芽舞台展出了减少的敏感到骆驼毛的织物处理。三 GmMYB 基因差别除了他们压力应答的基因的一个普通子集的规定影响了压力应答的基因的一个子集。这些结果显示三 GmMYB 基因可以在压力忍耐起微分作用,可能通过压力应答的基因的规定。Yong Liao Hong-Feng Zou Hui-Wen Wang Wan-Ke Zhang Biao Ma Jin-Song Zhang Shou-Yi Chen 2008Cell Research2008,18,10:70
8LA-(MC)-ICPMS U-Pb zircon geochronology and Lu-Hf isotope compositions of the Taihua complex on the southern margin of the North China Craton显示文摘Widely distributed on the southern margin of the North China Craton,the Taihua complex extends roughly in an east-west direction and the relatively complete successions are found in Lushan County,Henan Province.Like many other Archean terranes,the Taihua Complex can be divided into two major lithological units along the Dangze River,namely gneisses series and supracrustal rocks.The former is located on the north side of the river and chiefly composed of TTG gneisses and amphibolites;the latter on the south side of the river is mainly supracrustal rock.Coupled with the previous studies,the results obtained by this study show that the Taihua complex was formed in a large time span from Neoarchean to Palaeoproterozoic.The TTG gneisses and amphibolites are dated at Neoarchean (2794–2752 Ma).The 2.9 Ga and 3.1 Ga zircons in amphibolites could be xenocrysts.In the North China Craton,the 2.8–2.7 Ga old rocks crop out in several areas e.g.western Shandong Province,Jiaodong Peninsula and Lushan area of Henan Province.In addition,2.8–2.7 Ga detrital zircons or xenocryst zircons have been recognized in Huai’an,Fuping,Wutai areas of North China Craton and also reported in the Early Paleozoic diamondiferous kimberlites in Mengyin and Fuxian.All these age results indicate that the 2.8–2.7 Ga rocks may have been developed much broader region than today’s outcrops.Zircon Hf and whole rock Nd isotopes show that the 2.8–2.7 Ga tectono-thermal event represents an important period of crustal growth with minor ancient crust reworked in the North China Craton.However the formation of supracrustal rocks is limited to 2.2–2.0 Ga in the Palaeoproterozoic time,not the Archaean,as previously believed.Combined with the chronological data of aluminium-rich metamorphic rocks (Khondalite series) on the southern margin of the North China Craton and adjacent areas,it is suggested that the above areas have widely developed Paleoproterozoic passive continental margin environment.DIWU ChunRong SUN Yong LIN CiLuan WANG HongLiang 2010Chinese Science Bulletin2010,55,23:72
9Composition Modeling and Equivalence of an Integrated Power Generation System of Wind, Photovoltaic and Energy Storage Unit显示文摘利用间接组合建模的方法,在建立典型的双馈风机、光伏发电单元和储能单元的装置级机电暂态模型基础上,采用等值方法建立三者电站级的机电暂态模型,最终通过组合建模得到了风光储联合发电系统的机电暂态模型。在大型电力系统分析软件包的PSD-BPA暂态稳定程序中实现了风光储联合发电系统的仿真功能,通过典型算例和张北"国家风光储输示范工程"的仿真分析验证了模型的正确性,为风光储联合发电系统的并网研究提供了分析手段。WANG Haohuai TANG Yong HOU Junxian ZOU Jiangfeng LIANGShuang SU Feng 2011中国电机工程学报2011,31,34:66
10Artificial intelligence in healthcare:past,present and future显示文摘Artificial intelligence(AI)aims to mimic human cognitive functions.It is bringing a paradigm shift to healthcare,powered by increasing availability of healthcare data and rapid progress of analytics techniques.We survey the current status of AI applications in healthcare and discuss its future.AI can be applied to various types of healthcare data(structured and unstructured).Popular AI techniques include machine learning methods for structured data,such as the classical support vector machine and neural network,and the modern deep learning,as well as natural language processing for unstructured data.Major disease areas that use AI tools include cancer,neurology and cardiology.We then review in more details the AI applications in stroke,in the three major areas of early detection and diagnosis,treatment,as well as outcome prediction and prognosis evaluation.We conclude with discussion about pioneer AI systems,such as IBM Watson,and hurdles for real-life deployment of AI.Fei Jiang Yong Jiang Hui Zhi Yi Dong Hao Li Sufeng Ma Yilong Wang Qiang Dong Haipeng Shen Yongjun Wang 2017Stroke & Vascular Neurology2017,2,4:76
11U–Pb ages and Hf isotopes for detrital zircons from quartzite in the Paleoproterozoic Songshan Group on the southwestern margin of the North China Craton显示文摘In situ U-Pb dating and Lu-Hf isotopic analysis were carried out for detrital zircons from quartzite in the Paleoproterozoic Songshan Group on the southern margin of the North China Craton (NCC). The re- sults provide further constraints on the crustal formation and evolution history of NCC. Four 207Pb/206Pb age populations were obtained from 99 analyses, with clusters at ~3.40 Ga, 2.77―2.80 Ga, ~2.50 Ga and 2.34 Ga, respectively. The 3.40 Ga old zircons have similar Hf isotopic compositions to those from Ar- chean rocks in the Jidong and Anshan areas of NCC. However, crustal remnants older than 3.6 Ga have been identified in the southern margin of NCC, the South China Craton, the northwestern part of the Qinling Orogen and its adjacent area. Thus, it is not easy to trace the source rock from which the 3.40 Ga detrital zircons were derived. It can be inferred that the crustal remnants older than 3.40 Ga might have been widely distributed in the North China Craton. The 2.77―2.80 Ga zircons make up a relatively small proportion and have the highest εHf (t) values (up to 6.1±1.6), consistent with the Hf isotopic composition of the depleted mantle at 2.83 Ga. Their single-stage Hf model age of 2.83 Ga is close to their crystallized age, suggesting that their source rocks were extracted from the contemporaneous depleted mantle. The ~2.50 Ga zircon grains constitute about 85% of the total grain population and their Hf isotopic compositions indicate major growth of juvenile crust at ~2.50 Ga but minor reworking of ancient crust. The youngest zircon dated in this study gave an U-Pb age of 2337±23 Ma, which can be considered the maximum depositional age of the formation of the Songshan Group.DIWU ChunRong SUN Yong YUAN HongLin WANG HongLiang ZHONG XingPing LIU XiaoMing 2008Chinese Science Bulletin2008,53,18:54
12Functional exhaustion of antiviral lymphocytes in COVID-19 patients显示文摘In December 2019,a novel coronavirus was first reported in Wuhan,China.1 It was named by the World Health Organization as severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)and is responsible for coronavirus disease 2019(COVID-19).Up to 28 February 2020,79,394 cases have been confirmed according to China’s National Health Commission.Outside China,the virus has spread rapidly to over 36 countries and territories.Yuanhong Xuand Zhigang Tian Meijuan Zheng Yong Gao Gang Wang Guobin Song Siyu Liu Dandan Sun Yuanhong Xu Zhigang Tian 2020Cellular & Molecular Immunology2020,17,5:54
13Water-Saving and High-Yielding Irrigation for Lowland Rice by Controlling Limiting Values of Soil Water Potential显示文摘现在的学习调查了一个灌溉系统是否能被建立节省水和增加谷物产量在灌溉低地大米(Oryza sativa L.) 在领域水平由合适的用水管理提高水生产率。用二地成年的米饭栽培变种,二个灌溉系统;常规灌溉和节省水的灌溉,被进行。在节省水的灌溉系统,限制与特定的生长阶段有关的土壤水潜力的价值作为灌溉索引被建议。与排水在在哪儿的常规灌溉相比在另外的时间,增加的谷物在 7.4% ~ 11.3% 产出的节省水的灌溉,在 24.5% ~ 29.2% 的减少的灌溉用水,和增加的水生产率中间季节、充满(谷物每灌溉用水的立方的米让步) 在 43.1% ~ 50.3% 。节省水的灌溉显著地增加了产量指数,改进 milling 和外观质量,在根流血提高了玉米素 + 玉米素核糖甙集中并且提高了在谷物的蔗糖 synthase,腺苷 diphosphateglucose pyrophosphorylase,淀粉 synthase 和淀粉分叉酶的活动。我们的结果由控制限制根和谷物,还原剂水输入,和增加谷物的生理的活动产出的与阶段能提高的特定的生长有关的土壤水潜力的价值显示那节省水的灌溉。Jianchang Yang Kai Liu Zhiqin Wang Yong Du Jianhua Zhang 2007Journal of Integrative Plant Biology2007,49,10:46
14Distribution of Soil Organic Carbon Fractions Along the Altitudinal Gradient in Changbai Mountain,China显示文摘Understanding the responses of soil organic carbon(SOC) fractions to altitudinal gradient variation is important for understanding changes in the carbon balance of forest ecosystems.In our study the SOC and its fractions of readily oxidizable carbon(ROC),water-soluble carbon(WSC) and microbial biomass carbon(MBC) in the soil organic and mineral horizons were investigated for four typical forest types,including mixed coniferous broad-leaved forest(MCB),dark coniferous spruce-fir forest(DCSF),dark coniferous spruce forest(DCS),and Ermans birch forest(EB),along an altitudinal gradient in the Changbai Mountain Nature Reserve in Northeast China.The results showed that there was no obvious altitudinal pattern in the SOC.Similar variation trends of SOC with altitude were observed between the organic and mineral horizons.Significant differences in the contents of SOC,WSC,MBC and ROC were found among the four forest types and between horizons.The contents of ROC in the mineral horizon,WSC in the organic horizon and MBC in both horizons in the MCB and EB forests were significantly greater than those in either DCSF or DCS forest.The proportion of soil WSC to SOC was the lowest among the three main fractions.The contents of WSC,MBC and ROC were significantly correlated(P < 0.05) with SOC content.It can be concluded that vegetation types and climate were crucial factors in regulating the distribution of soil organic carbon fractions in Changbai Mountain.ZHANG Min ZHANG Xiao-Ke LIANG Wen-Ju JIANG Yong DAI Guan-Hua WANG Xu-Gao HAN Shi-Jie 2011Pedosphere2011,21,5:43
15Crustal deformation on the Chinese mainland during 1998—2004 based on GPS data显示文摘This study focuses on resolving moderate amounts of crustal motion at the continental scale based on a large volume of global positioning system(GPS) data during 1998e2014. A state-of-the-art GPS processing strategy was used to resolve position time series and velocities from carrier beat phases for all available data. Position time series were closely analyzed to estimate linear constant, coseismic displacements, postseismic motions, and other parameters. We present coseismic offsets inferred from the GPS data for the 2010 Yushu and 2014 Yutian earthquakes, and also illustrate transient postseismic motions following the 2001 Kokoxili, 2008 Wenchuan, and 2011 Tohoku-Oki earthquakes. Since not all GPS position time series dominated by postseismic motions can be modeled and corrected reasonably, we present contemporary horizontal velocities from 2009 to 2014 for campaign stations and from 1998 to 2014 for continuous stations, irrespective of postseismic deformations. Our study concludes that we need to accumulate observations over a greater duration and apply accurate postseismic modeling to correct for transient displacement in order to resolve reasonable interseismic velocity.Zhao Bin Huang Yong Zhang Caihong Wang Wei Tan Kai Du Rinlin 2015Geodesy and Geodynamics2015,6,1:50
16New omega vortex identification method显示文摘A new vortex identification criterion called W-method is proposed based on the ideas that vorticity overtakes deformation in vortex.The comparison with other vortex identification methods like Q-criterion and λ_2-method is conducted and the advantages of the new method can be summarized as follows:(1) the method is able to capture vortex well and very easy to perform;(2) the physical meaning of W is clear while the interpretations of iso-surface values of Q and λ_2 chosen to visualize vortices are obscure;(3)being different from Q and λ_2 iso-surface visualization which requires wildly various thresholds to capture the vortex structure properly, W is pretty universal and does not need much adjustment in different cases and the iso-surfaces of W=0.52 can always capture the vortices properly in all the cases at different time steps, which we investigated;(4) both strong and weak vortices can be captured well simultaneously while improper Q and λ_2 threshold may lead to strong vortex capture while weak vortices are lost or weak vortices are captured but strong vortices are smeared;(5) W=0.52 is a quantity to approximately define the vortex boundary. Note that, to calculate W, the length and velocity must be used in the non-dimensional form. From our direct numerical simulation, it is found that the vorticity direction is very different from the vortex rotation direction in general 3-D vortical flow,the Helmholtz velocity decomposition is reviewed and vorticity is proposed to be further decomposed to vortical vorticity and non-vortical vorticity.ChaoQun Liu YiQian Wang Yong Yang ZhiWei Duan 2016Science China(Physics,Mechanics & Astronomy)2016,59,8:49
17Straw return and appropriate tillage method improve grain yield and nitrogen efficiency of winter wheat显示文摘Straw return is an important management tool for tackling and promoting soil nutrient conservation and improving crop yield in Huang-Huai-Hai Plain, China. Although the incorporation of maize straw with deep plowing and rotary tillage practices are widespread in the region, only few studies have focused on rotation tillage. To determine the effects of maize straw return on the nitrogen(N) efficiency and grain yield of winter wheat(Triticum aestivum L.), we conducted experiments in this region for 3 years. Five treatments were tested:(i) rotary tillage without straw return(RT);(ii) deep plowing tillage without straw return(DT);(iii) rotary tillage with total straw return(RS);(iv) deep plowing tillage with total straw return(DS);(v) rotary tillage of 2 years and deep plowing tillage in the 3rd year with total straw return(TS). Treatments with straw return increased kernels no. ear^(–1), thousand-kernel weight(TKW), grain yields, ratio of dry matter accumulation post-anthesis, and nitrogen(N) efficiency whereas reduced the ears no. ha^(–1) in the 2011–2012 and 2012–2013 growing seasons. Compared with the rotary tillage, deep plowing tillage significantly increased the grain yield, yield components, total dry matter accumulation, and N efficiency in 2013–2014. RS had significantly higher straw N distribution, soil inorganic nitrogen content, and soil enzymes activities in the 0–10 cm soil layer compared with the DS and TS. However, significantly lower values were observed in the 10–20 and 20–30 cm soil layers. TS obtained approximately equal grain yield as DS, and it also reduced the resource costs. Therefore, we conclude that TS is the most economical method for increasing grain yield and N efficiency of winter wheat in Huang-Huai-Hai Plain.CHEN Jin ZHENG Meng-jing PANG Dang-wei YIN Yan-ping HAN Ming-ming LI Yan-xia LUO Yong-li XU Xu LI Yong WANG Zhen-lin 2017Journal of Integrative Agriculture2017,16,8:42
18The adsorption behavior of metals in aqueous solution by microplastics effected by UV radiation显示文摘Microplastics are considered as the carrier to heavy metals in the environment.But the sorption ability of microplastics influenced by photo-aging is remaining unclear.In the present study,the sorption of two kinds of metal ions(Cu^2+ and Zn^2+)in the aqueous solution by both the virgin and aged microplastics was investigated.Polyethylene terephthalate(PET)debris,one of the typical kinds of microplastics was chosen in this study.Photo-aging of microplastics in environment was simulated using UV radiation in the laboratory.Date analysis indicated that the aged microplastics had higher adsorption capacity of heavy metals than original ones.This could be related to the increased surface area and oxygen containing function appeared in the surface of aged microplastics after UV radiation.When prolonging the time of radiation,the enhanced adsorption capacities of microplastics appeared for Cu^2+ and Zn^2+.These results showed a great interaction between the aging degree of plastics and sorption capacity to heavy metals.Meanwhile,external conditions including temperature and pH value were also showed great influence to the adsorption behavior.Qiongjie Wang Yong Zhang Xiaoxue Wangjin Yulai Wang Guanhua Meng Yihua Chen 2020Journal of Environmental Sciences2020,32,1:47
19Where Does AlphaGo Go: From Church-Turing Thesis to AlphaGo Thesis and Beyond显示文摘An investigation on the impact and significance of the Alpha Go vs. Lee Sedol Go match is conducted, and concludes with a conjecture of the Alpha Go Thesis and its extension in accordance with the Church-Turing Thesis in the history of computing. It is postulated that the architecture and method utilized by the Alpha Go program provide an engineering solution for tackling issues in complexity and intelligence. Specifically,the Alpha Go Thesis implies that any effective procedure for hard decision problems such as NP-hard can be implemented with Alpha Go-like approach. Deep rule-based networks are proposed in attempt to establish an understandable structure for deep neural networks in deep learning. The success of Alpha Go and corresponding thesis ensure the technical soundness of the parallel intelligence approach for intelligent control and management of complex systems and knowledge automation.Fei-Yue Wang Jun Jason Zhang Xinhu Zheng Xiao Wang Yong Yuan Xiaoxiao Dai Jie Zhang Liuqing Yang 2016IEEE/CAA Journal of Automatica Sinica2016,3,2:44
20Standard triple therapy for Helicobacter pylori infection in China: A meta-analysis显示文摘AIM:To assess the efficacy and safety of standard triple therapy compared with other pre-existing and new therapies in China.METHODS:Literature searches were conducted in the following databases:PubMed,EMBASE,the Cochrane Central Register of Controlled Trials,the VIP database,the China National Knowledge Infrastructure database,and the Chinese Biomedical Database.A meta-analysis of all randomized controlled trials(RCTs)comparing standard triple therapy for the eradication of Helicobacter pylori with pre-existing and new therapies in China was performed using Comprehensive Meta-Analysis 2.0.There were 49 studies that met our criteria and the qualities of these studies were assessed using the Jadad scale.The Mantel-Haenszel method was used for pooling dichotomous data.We also conducted subgroupanalyses according to age,duration of treatment and drug type.Sensitivity analyses and a cumulative metaanalysis were also performed with CMA 2.0.Publication bias was evaluated using Egger’s test,Begg’s test or a funnel plot.RESULTS:A total of 49 RCTs including 8332 patients were assessed.This meta-analysis showed that standard triple therapy with proton pump inhibitors(PPIs),amoxicillin(AMO)and clarithromycin(CLA)was inferior to sequential therapy[relative risk(RR)=0.863;95%confidence interval(CI):0.824-0.904],but was not superior to quadruple therapy(RR=1.073;95%CI:0.849-1.357)or other triple therapies(RR=1.01;95%CI:0.936-1.089).The meta-analysis also suggested that standard triple therapy is slightly more effective than dual therapy(RR=1.14;95%CI:0.99-1.31).However,the differences were not statistically significant.We removed the only trial with a regimen lasting14 d by sensitivity analysis and found that 7-d standard triple therapy was superior to 7-d dual therapy(RR=1.222;95%CI:1.021-1.461).Moreover,a sub-analysis based on the duration of quadruple therapy indicated that the 7-d and 10-d standard triple therapies were inferior to sequential therapy(RR=0.790;95%CI:0.718-0.868;RR=0.917;95%CI:0.839-1.002,respectively).Additionally,there were no significant differences in cure rate or adverse events among standard triple therapy,quadruple therapy,and other triple therapies(RR=0.940;95%CI:0.825-1.072;RR=1.081;95%CI:0.848-1.378,respectively).Standard triple therapy had a higher occurrence of side effects than sequential therapy(RR=1.283;95%CI:1.066-1.544).CONCLUSION:The eradication rates with a standard triple therapy consisting of PPI,AMO,and CLA are suboptimal in China,and new treatment agents need to be developed.Ben Wang Zhi-Fa Lv You-Hua Wang Hui Wang Xiao-Qun Liu Yong Xie Xiao-Jiang Zhou 2014World Journal of Gastroenterology2014,20,40:46
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