期刊文献+
共找到33,955篇文章
< 1 2 250 >
每页显示 20 50 100
Reshaping Global Order in the 21st Century:G-Plus Leadership in a Multiplex World
1
作者 Amitav Acharya Antoni Estevadeordal Louis W.Goodman 《中国与世界经济:英文版》 2019年第5期63-78,共16页
This article identifies divergent views on the nature of the changing order and argues that collaborative rather than hegemonic leadership is necessary to sustain global peace, prosperity and justice. This collaborati... This article identifies divergent views on the nature of the changing order and argues that collaborative rather than hegemonic leadership is necessary to sustain global peace, prosperity and justice. This collaborative leadership would increase the number of actors with effective voice.It calls the evolving order "multiplex" because of the overlapping yet divergent interests of the actors involved and "G-Plus" signaling the importance of the increasing number and diversity of actors.It does so in the context of two of the many challenges facing this multiplex G-Plus world: sustaining economic prosperity and coordinating global trade. 展开更多
关键词 ECONOMIC GROWTH G-Plus LEADERSHIP GLOBAL order GLOBAL TRADE multiplex world
Climatic suitability and spatial distribution for summer maize cultivation in China at 1.5 and 2.0℃ global warming
2
作者 Qijin He Guangsheng Zhou +1 位作者 Xiaomin Lü Mengzi Zhou 《科学通报:英文版》 SCIE EI CSCD 2019年第10期690-697,共8页
Evaluating climatic suitability of crop cultivation lays a foundation for agriculture coping with climate change scientifically. Herein, we analyse changes in the climatically suitable distribution of summer maize cul... Evaluating climatic suitability of crop cultivation lays a foundation for agriculture coping with climate change scientifically. Herein, we analyse changes in the climatically suitable distribution of summer maize cultivation in China at 1.5℃(GW1.5) and 2.0℃(GW2.0) global warming in the future according to the temperature control targets set by the Paris Agreement. Compared with the reference period (1971- 2000), the summer maize cultivation climatically suitable region (CSR) in China mainly shifts eastwards, and its acreage significantly decreases at both GW1.5 and GW2.0. Despite no dramatic changes in the CSR spatial pattern, there are considerable decreases in the acreages of optimum and suitable regions (the core of the main producing region), indicating that half-a-degree more global warming is unfavourable for summer maize production in China's main producing region. When the global warming threshold increases from GW1.5 to GW2.0, the centres-of-gravity of optimum areas shift northeastward under RCP4.5 and RCP8.5, the centres-of-gravity of both suitable and less suitable areas shift northwestward, though the northward trend is more prominent for the less suitable areas, and the centre-of-gravity of unsuitable areas shifts southeastward. Generally, half-a-degree more global warming drives the cultivable areas of summer maize to shift northward in China, while the west region shows a certain potential for expansion of summer maize cultivation. 展开更多
关键词 Summer maize CULTIVATION distribution CLIMATIC SUITABILITY 1.5℃ GLOBAL WARMING 2.0℃ GLOBAL WARMING
STABILITY OF GLOBAL MAXWELLIAN FOR NON-LINEAR VLASOV-POISSON-FOKKER-PLANCK EQUATIONS 预览
3
作者 廖杰 王倩蓉 杨雄锋 《数学物理学报:B辑英文版》 SCIE CSCD 2019年第1期127-138,共12页
In this article, we establish the exponential time decay of smooth solutions around a global Maxwellian to the non-linear Vlasov–Poisson–Fokker–Planck equations in the whole space by uniform-in-time energy estimate... In this article, we establish the exponential time decay of smooth solutions around a global Maxwellian to the non-linear Vlasov–Poisson–Fokker–Planck equations in the whole space by uniform-in-time energy estimates. The non-linear coupling of macroscopic part and Fokker–Planck operator in the model brings new difficulties for the energy estimates, which is resolved by adding tailored weighted-in-v energy estimates suitable for the Fokker–Planck operator. 展开更多
关键词 NON-LINEAR Vlasov–Poisson–Fokker–Planck equation GLOBAL Maxwellian GLOBAL a priori ESTIMATES EXPONENTIAL convergence
在线阅读 下载PDF
基于全域化视角的宁波历史城区历史文化空间品质提升研究 预览
4
作者 谢华春 王蓓 陈青扬 《建筑与文化》 2019年第10期35-36,共2页
2018年宁波提出旅游全域化、国际化战略,强调加快推进全域化高水平文明城市建设,在此基础上,文章对宁波历史城区历史文化的现状进行了调研和分析,进而结合全域旅游中提出的全局性、整合性、共享性的理念,提出了打造整体化历史文化品牌,... 2018年宁波提出旅游全域化、国际化战略,强调加快推进全域化高水平文明城市建设,在此基础上,文章对宁波历史城区历史文化的现状进行了调研和分析,进而结合全域旅游中提出的全局性、整合性、共享性的理念,提出了打造整体化历史文化品牌,实施"旅游+N"的全域化发展模式,实施全地域覆盖、全资源整合策略、全社会共建共享等实施策略,以推进宁波中心城区历史文化空间品质的整体性提升. 展开更多
关键词 全域化 全域旅游 历史空间 宁波中心城区
在线阅读 免费下载
Changes in Global Cloud Cover Based on Remote Sensing Data from 2003 to 2012 预览
5
作者 MAO Kebiao YUAN Zijin +3 位作者 ZUO Zhiyuan XU Tongren SHEN Xinyi GAO Chunyu 《中国地理科学:英文版》 SCIE CSCD 2019年第2期306-315,共10页
As is well known,clouds impact the radiative budget,climate change,hydrological processes,and the global carbon,nitrogen and sulfur cycles.To understand the wide-ranging effects of clouds,it is necessary to assess cha... As is well known,clouds impact the radiative budget,climate change,hydrological processes,and the global carbon,nitrogen and sulfur cycles.To understand the wide-ranging effects of clouds,it is necessary to assess changes in cloud cover at high spatial and temporal resolution.In this study,we calculate global cloud cover during the day and at night using cloud products estimated from Moderate Resolution Imaging Spectroradiometer(MODIS)data.Results indicate that the global mean cloud cover from 2003 to 2012 was 66%.Moreover,global cloud cover increased over this recent decade.Specifically,cloud cover over land areas(especially North America,Antarctica,and Europe)decreased(slope=–0.001,R~2=0.5254),whereas cloud cover over ocean areas(especially the Indian and Pacific Oceans)increased(slope=0.0011,R~2=0.4955).Cloud cover is relatively high between the latitudes of 36°S and 68°S compared to other regions,and cloud cover is lowest over Oceania and Antarctica.The highest rates of increase occurred over Southeast Asia and Oceania,whereas the highest rates of decrease occurred over Antarctica and North America.The global distribution of cloud cover regulates global temperature change,and the trends of these two variables over the 10-year period examined in this study(2003–2012)oppose one another in some regions.These findings are very important for studies of global climate change. 展开更多
关键词 GLOBAL CLOUD COVER climate CHANGE REMOTE SENSING MODIS GLOBAL CHANGE
在线阅读 下载PDF
Committed to Transformation 预览
6
作者 JIAO FENG 《今日中国:英文版》 2019年第4期28-31,共4页
MIDEA Group has been listed in the Fortune Global 500 list for three consecutive years. In 2018, it was ranked 323, up 127 places from the previous year. Rather than being content with its laurels as a conventional ma... MIDEA Group has been listed in the Fortune Global 500 list for three consecutive years. In 2018, it was ranked 323, up 127 places from the previous year. Rather than being content with its laurels as a conventional manufacturing giant, Midea today is upgrading itself to an intelligent manufacturer and moving toward becoming a global technology group. 展开更多
关键词 TRANSFORMATION FORTUNE GLOBAL 500 GLOBAL TECHNOLOGY GROUP
在线阅读 下载PDF
Global dynamics of a cholera model with age structures and multiple transmission modes
7
作者 Xia Wang Yuming Chen Xinyu Song 《生物数学学报:英文版》 2019年第5期63-96,共34页
In this paper,we propose and analyze a cholera model.The model incorporates both direct transmission (person-to-person transmission) and indirect transmission (contaminated environment-to-person transmission: hyper-in... In this paper,we propose and analyze a cholera model.The model incorporates both direct transmission (person-to-person transmission) and indirect transmission (contaminated environment-to-person transmission: hyper-infectivity and lower-infcctivity).Moreover,we employ general nonlinear incidences and introduce infection age of infectious individuals and biological ages of pathogens in the environment.After considering the well-posedness of the system,we study the existence and local stability of steady states,which is determined by the basic reproduction number.To establish the attractivity of the infection steady state,we also get the uniform persistence and existence of compact global attractors.The main result is a threshold dynamics obtained by applying the Fluctuation Lemma and the approach of Lyapunov functionals.When the basic reproduction number is less than one,the infection-free steady state is globally asymptotically stable while when the basic reproduction number is larger than one,the infection steady state attracts each solution with nonzero infection force at some time point.The effect of multiple transmission modes on the disease dynamics is also discussed. 展开更多
关键词 MULTIPLE transmission MODES age of infection GLOBAL stability UNIFORM per-sistence compact GLOBAL ATTRACTOR
Equal Rights Versus Equal Needs:Global Justice or Global Virtues?
8
作者 Qingping Liu 《复旦人文社会科学论丛:英文版》 2019年第2期275-291,共17页
According to the analytically semantic linkage of“good-right-rights-justice”formed in the real conflicts among goods and especially among people,we should not confuse the global justice principle of“equal respect f... According to the analytically semantic linkage of“good-right-rights-justice”formed in the real conflicts among goods and especially among people,we should not confuse the global justice principle of“equal respect for everyone’s basic rights”with the global virtue principle of“equal satisfaction of everyone’s basic needs.”Correspondingly,while global virtues and the national interest may and can be reconciled with each other,global justice should not make compromises to the national interest precisely because of its ultimate priority. 展开更多
关键词 GLOBAL JUSTICE GLOBAL virtues Needs RIGHTS EQUALITY National INTEREST
Distributional responses to climate change for alpine species of Cyananthus and Primula endemic to the Himalaya-Hengduan Mountains
9
作者 Xie He Kevin S. Burgess +1 位作者 Lian-Ming Gao De-Zhu Li 《植物多样性:英文版》 CAS CSCD 2019年第1期26-32,共7页
Global warming increases the vulnerability of plants, especially alpine herbaceous species, to local extinction. In this study, we collected species distribution information from herbarium specimens for ten selected C... Global warming increases the vulnerability of plants, especially alpine herbaceous species, to local extinction. In this study, we collected species distribution information from herbarium specimens for ten selected Cyananthus and Primula alpine species endemic to the Himalaya-Hengduan Mountains(HHM).Combined with climate data from WorldClim, we used Maximum Entropy Modeling(MaxEnt) to project distributional changes from the current time period to 2070. Our predictions indicate that, under a wide range of climate change scenarios, the distributions of all species will shift upward in elevation and northward in latitude;furthermore, under these scenarios, species will expand the size of their range. For the majority of the species in this study, habitats are available to mitigate upward and northward shifts that are projected to be induced by changing climate. If current climate projections, however, increase in magnitude or continue to increase past our projection dates, suitable habitat for future occupation by alpine species will be limited as we predict range contraction or less range expansion for some of the species under more intensified climate scenarios. Our study not only underscores the value of herbarium source information for future climate model projections but also suggests that future studies on the effects of climate change on alpine species should include additional biotic and abiotic factors to provide greater resolution of the local dynamics associated with species persistence under a warming climate. 展开更多
关键词 Global warming MAXENT Range expansion ALPINE SPECIES Himalaya-Hengduan Mountains
On Cultivating Intercultural Critical Thinking Ability in English Teaching for Non-English Major Graduates 预览
10
作者 CHEN Jing-xia 《中美英语教学:英文版》 2019年第4期152-158,共7页
After discussing the important concepts that guide English teaching in universities in China, the author draws a roadmap of Language and Intercultural Critical Thinking Integrated Approach (LICTIA) for English teachin... After discussing the important concepts that guide English teaching in universities in China, the author draws a roadmap of Language and Intercultural Critical Thinking Integrated Approach (LICTIA) for English teaching for non-English major graduates in Central University of Finance and Economics, and then expounds on the particulars concerning the application of LICTIA in English classes. English teaching for non-English major graduates aims to cultivate graduates’ global competence and intercultural critical thinking ability besides the improved language skills. 展开更多
关键词 LICTIA global COMPETENCE INTERCULTURAL critical THINKING language SKILLS
在线阅读 下载PDF
Global Significance of China's Economic Development 预览
11
作者 CAI FANG 《今日中国:英文版》 2019年第10期18-21,共4页
OVER the past seven decades since the People’s Republic of China (PRC) was founded in 1949, China has emerged as the second largest economy in the world from a once poor country. While enabling its people to live a w... OVER the past seven decades since the People’s Republic of China (PRC) was founded in 1949, China has emerged as the second largest economy in the world from a once poor country. While enabling its people to live a well-off life, China has also made prominent contributions to the world’s economic growth. 展开更多
关键词 GLOBAL SIGNIFICANCE China ECONOMIC Development People’s REPUBLIC of China (PRC)
在线阅读 下载PDF
Distillability of Sudden Death in Qutrit-Qutrit Systems under Global Mixed Noise
12
作者 柴冰冰 郭金良 《中国物理快报:英文版》 SCIE CAS CSCD 2019年第5期17-21,共5页
Considering the influences of collective dephasing, multilocal qutrit-flip, local qutrit-flip, and the combination of global mixed noise, we study the dynamics of entanglement and the phenomenon of distillability of s... Considering the influences of collective dephasing, multilocal qutrit-flip, local qutrit-flip, and the combination of global mixed noise, we study the dynamics of entanglement and the phenomenon of distillability of sudden death (DSD) in a qutrit-qutrit system under various decoherent noises. It is shown that the system always undergoes DSD when it interacts with multilocal and local qutrit-flip noise, and the time-determined bound entangled state is more dependent on different noises. Comparing with the cases of global mixed and collective dephasing noise,we conclude that the qutrit-flip noise is responsible for the DSD. 展开更多
关键词 Distillability of SUDDEN DEATH in Qutrit-Qutrit Systems under GLOBAL Mixed Noise
全球区块链技术专利分析 预览
13
作者 葛亮 张亚东 《中国发明与专利》 2019年第1期39-46,共8页
本文利用专利信息揭示了全球区块链技术发展现状,通过技术分析,发现全球区块链技术的专利申请主要集中在中国和美国,中国申请量比美国大,美国的专利申请质量和海外布局比中国强,建议中国企业加强专利信息利用,助推企业创新发展,努力提... 本文利用专利信息揭示了全球区块链技术发展现状,通过技术分析,发现全球区块链技术的专利申请主要集中在中国和美国,中国申请量比美国大,美国的专利申请质量和海外布局比中国强,建议中国企业加强专利信息利用,助推企业创新发展,努力提升专利申请质量,掌握核心专利,加强专利海外布局,区块链创业公司应积极寻求与未来可能应用区块链技术的行业巨头和国内拥有有较强技术基础的高校院所加强合作,推动区块链的技术与产业良性发展。 展开更多
关键词 区块链 全球 专利分析 技术
在线阅读 下载PDF
Analyzing Spatio-Temporal Distribution Pattern and Correlation for Taxi and Metro Ridership in Shanghai
14
作者 叶颖微 孙健 罗京 《上海交通大学学报:英文版》 EI 2019年第2期137-147,共11页
Taxicab is an important mode in urban transportation system, while the role of taxicabs, especially the relationship with metro system has not been fully studied. This study aims at exploring the factors influencing t... Taxicab is an important mode in urban transportation system, while the role of taxicabs, especially the relationship with metro system has not been fully studied. This study aims at exploring the factors influencing the role played by taxicabs in Shanghai, China. Firstly, taxi trips are categorized into three types, namely metroreplaceable(MR), metro-extending(ME) and metro-supplement(MS) ones. Then, the tendency of travelers towards taxi or metro at a specific metro station is proposed and calculated on the basis of MR taxi trips and metro trips. Factors influencing the tendency are investigated through semi-parametric regression models, with the results indicating that the most significant factors and the influencing radii during the peak and off-peak hours are different. Some built environment factors, such as the number of hospitals and government agencies, have significant positive relationship with the tendency in the time periods. Furthermore, land use related factors, such as the increase of forestry and commercial land, generally promote taxi-hiring in the off-peak hours, while they have a negative impact during the peak hours. Findings of this study can assist governments and policy makers to understand the impact of built environment and land use on trip patterns, and thus may contribute to more reasonable policies and optimized urban planning, which may promote modal switch from taxi to subway. 展开更多
关键词 TAXI TRIP global POSITIONING system(GPS) role of TAXI industry SEMI-PARAMETRIC model
Seawater Temperature and Dissolved Oxygen over the Past 500 Million Years
15
作者 Haijun Song Paul B.Wignall +2 位作者 Huyue Song Xu Dai Daoliang Chu 《地球科学学刊:英文版》 SCIE CAS CSCD 2019年第2期236-243,共8页
Ocean temperature and dissolved oxygen concentrations are critical factors that control ocean productivity, carbon and nutrient cycles, and marine habitat. However, the evolution of these two factors in the geologic p... Ocean temperature and dissolved oxygen concentrations are critical factors that control ocean productivity, carbon and nutrient cycles, and marine habitat. However, the evolution of these two factors in the geologic past are still unclear. Here, we use a new oxygen isotope database to establish the sea surface temperature(SST) curve in the past 500 million years. The database is composed of 22 796 oxygen isotope values of phosphatic and calcareous fossils. The result shows two prolonged cooling events happened in the Late Paleozoic and Late Cenozoic, coinciding with two major ice ages indicated by continental glaciation data, and seven global warming events that happened in the Late Cambrian, Silurian–Devonian transition, Late Devonian, Early Triassic, Toarcian, Late Cretaceous, and Paleocene–Eocene transition. The SSTs during these warming periods are about 5–30 °C higher than the present-day level. Oxygen contents of shallow seawater are calculated from temperature, salinity, and atmospheric oxygen. The results show that major dissolved oxygen valleys of surface seawater coincide with global warming events and ocean anoxic events. We propose that the combined effect of temperature and dissolved oxygen account for the long-term evolution of global oceanic redox state during the Phanerozoic. 展开更多
关键词 sea surface temperature global WARMING OCEAN ANOXIC EVENT dissolved oxygen PHANEROZOIC
Are SDGs suitable for China's sustainable development assessment? An application and amendment of the SDGs Indicators in China 预览
16
作者 Jing Zhu Xinzhang Sun +1 位作者 Zheng He Mingyue Zhao 《中国人口资源与环境:英文版》 2019年第1期25-38,共14页
In order to further ensure that the 2030 Agenda for Sustainable Development is to be implemented and the action measures of all countries are consistent, the United Nations has put forward a set of indicators to monit... In order to further ensure that the 2030 Agenda for Sustainable Development is to be implemented and the action measures of all countries are consistent, the United Nations has put forward a set of indicators to monitor and evaluate the progress of global sustainable development. This set of evaluation indicators is aimed for global and regional progress. An important feature of the evaluation indicators is that they are internationally comparable, but due to the large differences in the levels of sustainable development among countries, this framework of evaluation indicators has a disadvantage that it does not apply to tracking the progress of sustainable development at the national level. This paper focuses on the analysis of specific issues in the application of the global sustainable development indicators framework to meet the goals and targets of the UN and builds a system of evaluation indicators to assess the progress of sustainable development at the national level in China, and offers a perspective to assess China’s progress as well. 展开更多
关键词 The 2030 AGENDA for SUSTAINABLE DEVELOPMENT SUSTAINABLE DEVELOPMENT goals (SDGs) global INDICATOR framework for the SDGs evaluation index system
在线阅读 下载PDF
Heavy Oils and Oil Sands:Global Distribution and Resource Assessment 预览
17
作者 LIU Zuodong WANG Hongjun +7 位作者 Graham BLACKBOURN MA Feng HE Zhengjun WEN Zhixing WANG Zhaoming YANG Zi LUAN Tiansi WU Zhenzhen 《地质学报:英文版》 SCIE CAS CSCD 2019年第1期199-212,共14页
Gl obal recoverable resources of heavy oil and oil sands have been assessed by CNPC using a geology-based assessment method combined with the traditional volumetric method,spatial interpolation method,parametric-proba... Gl obal recoverable resources of heavy oil and oil sands have been assessed by CNPC using a geology-based assessment method combined with the traditional volumetric method,spatial interpolation method,parametric-probability method etc.The most favourable areas for exploration have been selected in accordance with a comprehensive scoring system.The results show:(1)For geological resources,CNPC estimate 991.18 billion tonnes of heavy oil and 501.26 billion tonnes of oil sands globally,of which technically recoverable resources of heavy oil and oil sands comprise 126.74 billion tonnes and 64.13 billion tonnes respectively.More than 80%of the resources occur within Tertiary and Cretaceous reservoirs distributed across 69 heavy-oil basins and 32 oil-sands basins.99%of recoverable resources of heavy oil and oil sands occur within foreland basins,passive continental-margin basins and cratonic basins.(2)Since residual hydrocarbon resources remain following large-scale hydrocarbon migration and destruction,heavy oil and oil sands are characterized most commonly by late hydrocarbon accumulation,the same basin types and source-reservoir conditions as for conventional hydrocarbon resources,shallow burial depth and stratabound reservoirs.(3)Three accumulation models are recognised,depending on basin type:degradation along slope;destruction by uplift;and migration along faults.(4)In addition to mature exploration regions such as Canada and Venezuela,the Volga-Ural Basin and the Pre-Caspian Basin are less well-explored and have good potential for oil-sand discoveries,and it is predicted that the Middle East will be an important region for heavy-oil development. 展开更多
关键词 HEAVY OIL OIL SAND RESIDUAL hydrocarbons GLOBAL RESOURCE assessment
在线阅读 下载PDF
2018~2019年冬春季全球流感流行情况 预览
18
作者 郭倩 陈涛 《热带病与寄生虫学》 2019年第1期1-4,13共5页
2018~2019年冬春季,全球范围内均报告有流感活动,季节性流感以A亚型为主。北半球温带地区的流感活动水平从11月上旬开始升高,部分国家经历了高强度水平的流感活动,检测到的流感病毒主要亚型是甲型H1N1,其次为A(H3N2)亚型,而A(H3N2)型流... 2018~2019年冬春季,全球范围内均报告有流感活动,季节性流感以A亚型为主。北半球温带地区的流感活动水平从11月上旬开始升高,部分国家经历了高强度水平的流感活动,检测到的流感病毒主要亚型是甲型H1N1,其次为A(H3N2)亚型,而A(H3N2)型流感病毒比例呈显著上升趋势。热带地区,流感活动在一些国家处于高水平,印度、老挝报告了主要由甲型H1N1流感流行造成的区域性暴发疫情;而伊朗报告的区域性暴发疫情以A(H3N2)为主。2018年10月份以来,除澳大利亚一些地区流感活动仍高于非季节性水平外,南半球温带地区的流感活动维持在非季节性水平。本文对2018年10月1日至2019年3月3日全球的流感活动情况进行概述。 展开更多
关键词 全球 流感 疫情 回顾 世界卫生组织
在线阅读 下载PDF
Promoting Global Governance to Catalyze Shared Development 预览
19
作者 HU BILIANG 《今日中国:英文版》 2019年第8期26-28,共3页
POVERTY is still a major issue plaguing the modern world. In the 65 countries including China along the Belt and Road route, only 18 are high-income countries, with the per capita GDP reaching US $27,000. There are 22... POVERTY is still a major issue plaguing the modern world. In the 65 countries including China along the Belt and Road route, only 18 are high-income countries, with the per capita GDP reaching US $27,000. There are 22 countries in the upper-middle-income bracket as the average per capita GDP in these countries stands at US $7,000. The number of lower-middle-income nations is 23, having an average per capita GDP less than US $2,500. The remaining two, Afghanistan and Nepal, have their GDP per capita share of US $1,000. 展开更多
关键词 Promoting GLOBAL GOVERNANCE CATALYZE SHARED DEVELOPMENT POVERTY
在线阅读 下载PDF
Brain networks modeling for studying the mechanism underlying the development of Alzheimer’s disease 预览
20
作者 Shuai-Zong Si Xiao Liu +2 位作者 Jin-Fa Wang Bin Wang Hai Zhao 《中国神经再生研究:英文版》 SCIE CAS CSCD 2019年第10期1805-1813,共9页
Alzheimer’s disease is a primary age-related neurodegenerative disorder that can result in impaired cognitive and memory functions.Although connections between changes in brain networks of Alzheimer’s disease patien... Alzheimer’s disease is a primary age-related neurodegenerative disorder that can result in impaired cognitive and memory functions.Although connections between changes in brain networks of Alzheimer’s disease patients have been established,the mechanisms that drive these alterations remain incompletely understood.This study,which was conducted in 2018 at Northeastern University in China,included data from 97 participants of the Alzheimer’s Disease Neuroimaging Initiative(ADNI)dataset covering genetics,imaging,and clinical data.All participants were divided into two groups:normal control(n=52;20 males and 32 females;mean age 73.90±4.72 years)and Alzheimer’s disease(n=45,23 males and 22 females;mean age 74.85±5.66).To uncover the wiring mechanisms that shaped changes in the topology of human brain networks of Alzheimer’s disease patients,we proposed a local naive Bayes brain network model based on graph theory.Our results showed that the proposed model provided an excellent fit to observe networks in all properties examined,including clustering coefficient,modularity,characteristic path length,network efficiency,betweenness,and degree distribution compared with empirical methods.This proposed model simulated the wiring changes in human brain networks between controls and Alzheimer’s disease patients.Our results demonstrate its utility in understanding relationships between brain tissue structure and cognitive or behavioral functions.The ADNI was performed in accordance with the Good Clinical Practice guidelines,US 21 CFR Part 50-Protection of Human Subjects,and Part 56-Institutional Review Boards(IRBs)/Research Good Clinical Practice guidelines Institutional Review Boards(IRBs)/Research Ethics Boards(REBs). 展开更多
关键词 nerve REGENERATION Alzheimer's disease graph theory functional magnetic resonance imaging network model link prediction NAIVE Bayes topological structures ANATOMICAL distance global EFFICIENCY local EFFICIENCY neural REGENERATION
在线阅读 下载PDF
上一页 1 2 250 下一页 到第
使用帮助 返回顶部 意见反馈