咨询与建议

限定检索结果

文献类型

  • 44,966 篇 期刊文献
  • 2,387 篇 会议
  • 3 册 图书

馆藏范围

  • 47,356 篇 电子文献
  • 0 种 纸本馆藏

日期分布

学科分类号

  • 22,717 篇 工学
    • 7,051 篇 材料科学与工程(可...
    • 4,490 篇 化学工程与技术
    • 3,603 篇 环境科学与工程(可...
    • 3,548 篇 计算机科学与技术...
    • 2,931 篇 电气工程
    • 2,650 篇 机械工程
    • 2,522 篇 电子科学与技术(可...
    • 2,162 篇 生物医学工程(可授...
    • 1,946 篇 力学(可授工学、理...
    • 1,819 篇 控制科学与工程
    • 1,790 篇 水利工程
    • 1,736 篇 动力工程及工程热...
    • 1,642 篇 地质资源与地质工...
    • 1,379 篇 生物工程
  • 21,385 篇 医学
    • 17,312 篇 临床医学
    • 3,403 篇 基础医学(可授医学...
    • 2,859 篇 公共卫生与预防医...
    • 2,296 篇 药学(可授医学、理...
    • 1,912 篇 中西医结合
  • 21,058 篇 理学
    • 7,377 篇 生物学
    • 5,761 篇 化学
    • 5,105 篇 物理学
    • 2,269 篇 数学
    • 2,210 篇 地球物理学
    • 2,009 篇 天文学
    • 1,903 篇 生态学
    • 1,771 篇 大气科学
    • 1,751 篇 地质学
  • 6,413 篇 农学
    • 2,836 篇 作物学
    • 1,484 篇 农业资源与环境
  • 2,134 篇 管理学
  • 1,147 篇 经济学
  • 976 篇 教育学
  • 800 篇 法学
  • 371 篇 文学
  • 157 篇 艺术学
  • 97 篇 历史学
  • 71 篇 军事学
  • 50 篇 哲学

主题

  • 411 篇 cancer
  • 288 篇 analysis
  • 275 篇 of
  • 235 篇 and
  • 228 篇 deep learning
  • 227 篇 china
  • 208 篇 diabetes
  • 191 篇 disease
  • 190 篇 machine learning
  • 181 篇 covid-19
  • 180 篇 health
  • 175 篇 患者
  • 149 篇 prevalence
  • 107 篇 liver
  • 103 篇 acid
  • 100 篇 treatment
  • 96 篇 method
  • 94 篇 diagnosis
  • 92 篇 mortality
  • 92 篇 children

机构

  • 470 篇 university of ch...
  • 87 篇 university of ch...
  • 67 篇 university of mi...
  • 67 篇 institute for pa...
  • 67 篇 nikhef p.o.box 4...
  • 67 篇 fysikum stockhol...
  • 67 篇 michigan state u...
  • 66 篇 institut fur the...
  • 66 篇 dept.of physics ...
  • 65 篇 national researc...
  • 65 篇 compas group ins...
  • 64 篇 rudolf peierls c...
  • 64 篇 nstitucio catala...
  • 63 篇 department of ph...
  • 62 篇 school of physic...
  • 60 篇 ludwig-maximilia...
  • 54 篇 cea/saclay dsm/i...
  • 38 篇 institute of bas...
  • 31 篇 national astrono...
  • 28 篇 department of ph...

作者

  • 85 篇 h.murayama
  • 85 篇 j.d.jackson
  • 85 篇 g.d'ambrosio
  • 85 篇 m.white
  • 82 篇 p.de jong
  • 74 篇 v.i.belousov
  • 62 篇 jun wang
  • 54 篇 hui wang
  • 50 篇 v.burkert
  • 49 篇 li zhang
  • 43 篇 wei liu
  • 41 篇 jian wang
  • 41 篇 ming li
  • 40 篇 jing zhang
  • 37 篇 kavli ipmu
  • 36 篇 jun zhang
  • 34 篇 l.pape
  • 32 篇 rui wang
  • 30 篇 y.hayato
  • 29 篇 li li

语言

  • 43,263 篇 英文
  • 4,093 篇 中文
检索条件"机构=Centre for Social Research and Methods"
47356 条 记 录,以下是31-40 订阅
排序:
Effectiveness of biofertilizers foliar application on yield and quality traits of flax(Linum usitatissimum L.)
收藏 引用
Oil Crop Science 2024年 第2期9卷 91-101页
作者: Saied El Sayed A.B.Bakry O.A.Nofal M.A.Abo Horish Plant Nutrition Department National Research Centre33 El-Behouth St12622DokkiCairoEgypt Field Crops Department National Research Centre33 El-Behouth St12622DokkiCairoEgypt
Flax is considered to be one of the most significant dual-purpose crops for oil and fiber production in Egypt and *** have a substantial impact on various metabolic processes,including increased photo-synthesis,endoge... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
Fixed-effect and random-effects models in meta-analysis
收藏 引用
Chinese Medical Journal 2024年 第1期137卷 1-4页
作者: Chunjuan Zhai Gordon Guyatt Department of Cardiology Shandong Provincial Hospital Affiliated to Shandong First Medical UniversityJinanShandong 250021China Department of Health research methods Evidence and ImpactMcMaster UniversityHamilton L8S 4L8OntarioCanada
A systematic review synthesizes evidence addressing a structured clinical question using systematic and explicit methods to search,identify,screen,critically appraise,and extract and analyze data from relevant studies... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
Weathering and accumulation of trace elements in the soils of the Porali Plain, Balochistan: repercussions in agriculture
收藏 引用
Acta Geochimica 2024年 第2期43卷 214-234页
作者: Maria Kaleem Erum Bashir Shahid Naseem Tahir Rafique Bushra Shahab Department of Geology University of KarachiKarachi 75270Pakistan Applied Chemistry research centre PCSIR Laboratories ComplexKarachi 75280Pakistan
This study is thefirst attempt to assess the nature of the soil,especially on the western side of the Porali Plain in Balochistan;a new emerging agriculture hub,using weathering and pollution indices supplemented by mu... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
Study of Type-B QPOs Observed in Black Hole X-Ray Binary Swift J1728.9-3613
收藏 引用
research in Astronomy and Astrophysics 2024年 第3期24卷 1-9页
作者: Raj Kumar Astrophysical Sciences Division Bhabha Atomic Research CentreMumbai 400085India Homi Bhabha National Institute Mumbai 400094India
We report the detection of type-B quasi-periodic oscillation(QPO)of the black hole X-ray binary Swift J1728.9-3613 observed by NICER during the 2019 outburst.A type-B QPO was observed for the first two days and it dis... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
Advances in DNA methylation and its role in cytoplasmic male sterility in higher plants
收藏 引用
Journal of Integrative Agriculture 2024年 第1期23卷 1-19页
作者: Atiqur Rahman Hasan Sofiur Rahman Shakil Uddin Naima Sultana Shirin Akhter Ujjal Kumar Nath Shamsun Nahar Begum Mazadul Islam Afroz Naznin Nurul Amin Sharif Ahmed Akbar Hossain Department of Genetics and Plant Breeding Bangladesh Agricultural UniversityMymensingh 2202Bangladesh Plant Breeding Division Bangladesh Institute of Nuclear AgricultureMymensingh 2202Bangladesh Tuber Crop research centre Bangladesh Agricultural Research Institute(BARI)Joydebpur 1701Bangladesh Horticulture research centre Bangladesh Agricultural Research Institute(BARI)Joydebpur 1701Bangladesh Biotechnology Division Bangladesh Agricultural Research Institute(BARI)Joydebpur 1701Bangladesh International Rice research Institute Bangladesh OfficeDhaka 1213Bangladesh Division of Soil Science Bangladesh Wheat and Maize Research InstituteDinajpur 5200Bangladesh
The impact of epigenetic modifications like DNA methylation on plant phenotypes has expanded the possibilities for crop *** methylation plays a part in the regulation of both the chromatin structure and gene expressio... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
Laser‑Induced and MOF‑Derived Metal Oxide/Carbon Composite for Synergistically Improved Ethanol Sensing at Room temperature
收藏 引用
Nano-Micro Letters 2024年 第6期16卷 210-220页
作者: Hyeongtae Lim Hyeokjin Kwon Hongki Kang Jae Eun Jang Hyuk‑Jun Kwon Department of Electrical Engineering and Computer Science DGISTDaegu 42988South Korea Convergence research Advanced centre for Olfaction DGISTDaegu 42988South Korea
Advancements in sensor technology have significantly enhanced atmospheric ***,metal oxide and carbon(MO_(x)/C)hybrids have gained attention for their exceptional sensitivity and room-temperature sensing ***,previous m... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
Preface: The Special Issue on Dynamic and Networking Games
收藏 引用
Journal of the Operations research Society of China 2024年 第1期12卷 1-3页
作者: Hong-Wei Gao Vladimir Mazalov School of Mathematics and Statistics Qingdao University266071QingdaoShandongChina Institute of Applied Mathematical research Karelian Research Centre of RAS185910PetrozavodskRussia
Numerous game theory-based techniques to characterize agent behavior haveemerged in response to the swift advancements in technology,communications,indus-trial organization,economic integration,and international *** i... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Factors Impacting Participatory Post‑Disaster Relocation and Housing Reconstruction:The Case of Tsholotsho District,Zimbabwe
收藏 引用
International Journal of Disaster Risk Science 2024年 第1期15卷 58-72页
作者: Nombulelo Kitsepile Ngulube Hirokazu Tatano Subhajyoti Samaddar Department of social Informatics Graduate School of InformaticsKyoto UniversityKyoto 606-8507Japan Disaster Prevention research Institute(DPRI) Kyoto UniversityKyoto 611-0011Japan
Relocation is not typically considered the best planning option for post-disaster reconstruction and rehabilitation,but it may be necessary if the site has suffered severe damage or is at imminent *** is a growing rec... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
Genome Analysis of Plasmodium falciparum:A Preliminary Observation-Sierra Leone,2022-2023
收藏 引用
China CDC weekly 2024年 第17期6卷 368-373页
作者: Tianyu Wang Haimo Shen Bin Xu Wanxuan Yang Shenbo Chen Junhu Chen National Institute of Parasitic Diseases Chinese Center for Disease Control and Prevention(Chinese Center for Tropical Diseases Research)NHC Key Laboratory of Parasite and Vector BiologyWHO Collaborating Centre for Tropical DiseasesNational Centre for International Research on Tropical DiseasesShanghaiChina School of Basic Medical Sciences and Forensic Medicine Hangzhou Medical CollegeHangzhou CityZhejiang ProvinceChina School of Global Health Chinese Centre for Tropical Diseases ResearchShanghai Jiao Tong University School of MedicineShanghaiChina Hainan Tropical Diseases research Center(Hainan Sub-Center Chinese Center for Tropical Diseases Research)Haikou CityHainan ProvinceChina.
Summary What is already known about this topic?Sierra Leone,with a gross domestic product(GDP)per capita below$300 and significant poverty,ranks among the world’s least developed countries(LDCs).Despite its modest po... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Remote copper-catalyzed enantioselective substitution of yne-thiophene carbonates
收藏 引用
Science China Chemistry 2024年 第4期67卷 1175-1180页
作者: Hao-Dong Qian Xiang Li Tingrui Yin Wei-Feng Qian Chunhui Zhao Cuiju Zhu Hao Xu CCNU-uOttawa Joint research centre Key Laboratory of Pesticides&Chemical Biology of Ministry of EducationInternational Joint Research Center for Intelligent Biosensing Technology and HealthCollege of ChemistryCentral China Normal UniversityWuhan 430079China
Here,we describe a strategy for the copper-catalyzed asymmetric heteroarylation of yne-thiophene carbonates with indoles via remote *** key to the success of this strategy lies in the design of the alkynyl group at th... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 同方期刊数据库 同方期刊数据库 评论