咨询与建议

限定检索结果

文献类型

  • 16,382 篇 期刊文献
  • 187 篇 会议
  • 16 册 图书
  • 3 篇 学位论文

馆藏范围

  • 16,585 篇 电子文献
  • 4 种 纸本馆藏

日期分布

学科分类号

  • 7,346 篇 医学
    • 4,923 篇 临床医学
    • 1,205 篇 药学(可授医学、理...
    • 1,190 篇 中西医结合
    • 1,008 篇 基础医学(可授医学...
    • 864 篇 中药学(可授医学、...
    • 731 篇 公共卫生与预防医...
    • 415 篇 医学技术(可授医学...
    • 363 篇 中医学
  • 6,971 篇 工学
    • 1,769 篇 化学工程与技术
    • 1,648 篇 材料科学与工程(可...
    • 711 篇 机械工程
    • 679 篇 计算机科学与技术...
    • 586 篇 电气工程
    • 565 篇 环境科学与工程(可...
    • 529 篇 电子科学与技术(可...
    • 461 篇 生物医学工程(可授...
    • 448 篇 生物工程
    • 431 篇 仪器科学与技术
    • 428 篇 软件工程
    • 417 篇 动力工程及工程热...
    • 360 篇 地质资源与地质工...
    • 355 篇 力学(可授工学、理...
    • 352 篇 控制科学与工程
  • 4,910 篇 理学
    • 2,140 篇 化学
    • 1,595 篇 生物学
    • 1,146 篇 物理学
    • 520 篇 生态学
  • 2,478 篇 农学
    • 811 篇 作物学
    • 462 篇 农业资源与环境
    • 364 篇 畜牧学
  • 480 篇 管理学
  • 241 篇 教育学
  • 157 篇 经济学
  • 113 篇 法学
  • 67 篇 艺术学
  • 53 篇 文学
  • 35 篇 历史学
  • 27 篇 军事学
  • 21 篇 哲学

主题

  • 80 篇 危险因素
  • 78 篇 2型糖尿病
  • 77 篇 凋亡
  • 72 篇 基因表达
  • 71 篇 合成
  • 68 篇 力学性能
  • 60 篇 大鼠
  • 53 篇 组织培养
  • 50 篇 基因
  • 49 篇 高效液相色谱法
  • 47 篇 小麦
  • 47 篇 药动学
  • 46 篇 炎症因子
  • 45 篇 小鼠
  • 41 篇 晶体结构
  • 40 篇 化学成分
  • 38 篇 细胞增殖
  • 38 篇 糖尿病
  • 37 篇 细胞因子
  • 37 篇 冠状动脉疾病

机构

  • 174 篇 吉林大学
  • 168 篇 浙江大学
  • 142 篇 河北农业大学
  • 94 篇 上海交通大学
  • 91 篇 解放军总医院
  • 84 篇 东南大学
  • 81 篇 暨南大学
  • 80 篇 北京大学
  • 72 篇 复旦大学
  • 68 篇 东北大学
  • 66 篇 山东大学
  • 66 篇 北京大学人民医院
  • 61 篇 宁波大学
  • 60 篇 云南农业大学
  • 59 篇 四川大学
  • 58 篇 中国科学院大学
  • 57 篇 扬州大学
  • 56 篇 同济大学
  • 55 篇 四川农业大学
  • 55 篇 中山大学

作者

  • 75 篇 刘大群
  • 51 篇 钟大放
  • 49 篇 李达
  • 46 篇 王达
  • 38 篇 陈笑艳
  • 35 篇 李大林
  • 34 篇 陆大祥
  • 30 篇 张敏
  • 30 篇 张颖
  • 29 篇 徐开达
  • 28 篇 张大为
  • 27 篇 黄达
  • 25 篇 郭盛
  • 25 篇 孙大江
  • 23 篇 任大明
  • 23 篇 刘维达
  • 23 篇 王大平
  • 23 篇 陈达
  • 22 篇 刘波
  • 22 篇 李明

语言

  • 14,431 篇 中文
  • 2,157 篇 英文
检索条件"作者=Da.id C Ba.tlett"
16588 条 记 录,以下是1-10 订阅
排序:
Hydrocarbon indication in Rio Bonito Formation sandstone:Implication for cO_(2)storage in São Paulo,Brazil
收藏 引用
Energy Geoscience 2024年 第1期5卷 331-341页
作者: Richardson M.Abraham-A Haline V.Rocha Saulo B.de Oliveira colombo c.G.Tassinarri Orlando c.da Silva Institute of Energy and Environment University of São PauloSão PauloBrazil Research centre for Greenhouse Gas Innovation University of São PauloSão PauloBrazil
São Paulo State has witnessed cO_(2)storage-based investigations considering the availability of suitable geologic structures and proximity to primary cO_(2)source sinks related to bioenergy and carbon capture and sto... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
From Fostering to Delusional Disorder of Filiation
收藏 引用
Open Journal of Psychiatry 2024年 第4期14卷 283-286页
作者: Momar camara Wissem Masmoudi El Hadji Makhtar ba Sokhna Seck Maïmouna Dieye da Sylla Department of Psychiatry and Medical Psychology Cheikh Anta Diop University Dakar Senegal Thiaroye National Psychiatric Hospital center Dakar Senegal Fann National University Hospital center Dakar Senegal Albert Royer childrens Hospital Dakar Senegal
Introduction: Fostering is a widespread practice in West Africa. It played an essential role in the circulation of children. The failure of its community regulation, not compensated by a legal framework, has made its ... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Sustainable electrosynthesis: Enantioselective electrochemical Rh(Ⅲ)/chiral carboxylic acid-catalyzed oxidative c–H cyclization coupled with hydrogen evolution reaction
收藏 引用
chinese chemical Letters 2024年 第9期35卷 1-3页
作者: Xinghui Yao Zhouyu Wang da-Gang Yu Department of chemistry Xihua UniversityChengdu 610039China Key Laboratory of Green chemistry&Technology of Ministry of Education College of ChemistrySichuan UniversityChengdu 610064China
chiral compounds play a crucial role in the development of pharmaceuticals,pesticides,fragrances,and materials due to their unique stereochemical *** catalysis,which employs chiral catalysts to favor the production of... 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
Health risks of pest control and disinfection workers after the cOVid-19 outbreak in South Korea
收藏 引用
Journal of Environmental Sciences 2024年 第5期139卷 350-363页
作者: Yun-Hee choi da-An Huh Lita Kim Sang ji Lee Kyong Whan Moon Department of Health and Safety convergence Science Korea UniversityAnam-ro 145Seongbuk-guSeoul 02841South Korea BK21 FOUR R&E center for Learning Health System Korea UniversityAnam-ro 145Seongbuk-guSeoul 02841South Korea Institute of Sciences Korea UniversityAnam-ro 145Seongbuk-guSeoul 02841South Korea Department of Health and Environmental Science Korea UniversityAnam-ro 145Seongbuk-guSeoul 02841South Korea
The exposure patterns of pest control and disinfection workers have changed after the coronavirus disease 2019(cOVid-19)outbreak,but the health risks of chemical exposure have not been *** identified these workers’ch... 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
A Single-Fluorophore Multicolor Molecular Sensor That Visually identifies Organic Anions Including Phosphates
收藏 引用
ccS chemistry 2024年 第3期6卷 774-782页
作者: Zezhou Zong Qi Zhang da-Hui Qu Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research center School of Chemistry and Molecular EngineeringEast China University of Science and TechnologyShanghai 200237
Developing fluorescent sensors for small-molecule phosphates offers opportunities in optically detecting biorelevant reactions and ***,it remains elusive how to identify phosphates from other anions,such as carboxylat... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Optical Transient Source AT2021lfa:A Possible“Dirty Fireball”
收藏 引用
Research in Astronomy and Astrophysics 2024年 第4期24卷 124-133页
作者: Xue-Mei Ye da-Ming Wei Yi-Ming Zhu Zhi-Ping Jin Key Laboratory of dark Matter and Space Astronomy Purple Mountain ObservatoryChinese Academy of SciencesNanjing 210023China School of Astronomy and Space Science University of Science and Technology of ChinaHefei 230026China National Astronomical Observatories/Nanjing Institute of Astronomical Optics&Technology Chinese Academy of SciencesNanjing 210042China cAS Key Laboratory of Astronomical Optics&Technology Nanjing Institute of Astronomical Optics&TechnologyNanjing 210042China
AT2021lfa,also known as ZTF21aayokph,was detected by the Zwicky Transient Facility on 2021 May 4,a 05:34:48 ***-up observations were conducted using a range of ground-based optical telescopes,as wel as Swift/XRT and V... 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
Extracellular vesicles-coupled miRNAs from oviduct and uterus modulate signaling pathways related to lipid metabolism and bovine early embryo development
收藏 引用
Journal of Animal Science and Biotechnology 2024年 第4期15卷 1528-1549页
作者: Rosane Mazzarella Karina canon‑Beltran Yulia N.cajas Meriem Hamdi Encina M.Gonzalez Juliano c.da Silveira claudia L.V.Leal D.Rizos Department of Animal Reproduction INIA-CSICMadridSpain Department of Biochemistry and Molecular Biology Veterinary FacultyComplutense University of Madrid(UCM)MadridSpain Department Agrarian Production Technical University of MadridUPMMadridSpain Departamento de ciencias Biologicas Universidad Tecnica Particular de LojaUTPLLojaEcuador Department of Anatomy and Embryology FV-UCMMadridSpain Department of Veterinary Medicine FZEA-USPPirassunungaBrazil
background Extracellular vesicles(EVs) present in oviductal(OF) and uterine fluid(UF) have been shown to enhance bovine embryo quality during in vitro culture by reducing lipid contents and modulating lipid metabolism... 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
Multi-aspect analysis of ureteral access sheath usage in retrograde intrarenal surgery: A RIRSearch group study
收藏 引用
Asian Journal of Urology 2024年 第1期11卷 80-85页
作者: Oktay Özman Hacı M.Akgül cem başataç Önder Çınar Eyüp B.Sancak cenk M.Yazıcı Bülent Önal Haluk Akpınar Gaziosmanpasa Training and Research Hospital Urology ClinicİstanbulTurkey TekirdağNamık Kemal University School of MedicineDepartment of UrologyTekirdağTurkey Group Florence Nightingale Hospitals Department of UrologyİstanbulTurkey Zonguldak Bulent Ecevit University School of MedicineDepartment of UrologyZonguldakTurkey Çanakkale Onsekiz Mart University School of MedicineDepartment of UrologyÇanakkaleTurkey İstanbul University-cerrahpaşa Cerrahpaşa Medical FacultyDepartment of UrologyİstanbulTurkey
Objective:To evaluate the effect of ureteral access sheath(UAS)use and calibration change on stone-free rate and complications of retrograde intrarenal surgery(RIRS).Methods:data from 568 patients undergoing RIRS for ... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Image Semantic Segmentation Approach for Studying Human Behavior on Image data
收藏 引用
Wuhan University Journal of Natural Sciences 2024年 第2期29卷 145-153页
作者: ZHENG Zhan cHEN da HUANG Yanrong School of communication Wuhan Textile UniversityWuhan 430073HubeiChina Walnut Street(Shanghai)Information Technology co. Ltd.Shanghai 200051China college of Economics&Management Zhejiang University of Water Resources and Electric PowerHangzhou 310018ZhejiangChina Research center for Digital Economy and Sustainable Development of Water Resources Hangzhou 310018ZhejiangChina
Image semantic segmentation is an essential technique for studying human behavior through image *** paper proposes an image semantic segmentation method for human behavior ***,an end-to-end convolutional neural networ... 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
Evaluation of the Antibacterial and Antifungal capacity of Nanoemulsions Loaded with Synthetic chalcone Derivatives Di-Benzyl cinnamaldehyde and Benzyl 4-Aminochalcone
收藏 引用
Journal of Renewable Materials 2024年 第2期12卷 285-304页
作者: Flavia Oliveira Monteiro da Silva Abreu Taysse Holanda Joice Farias do Nascimento Henety Nascimento Pinheiro Rachel Menezes castelo Hélcio Silva dos Santos Thais Benincá Patrícia da Silva Malheiros Júlio césar Sousa Prado Raquel de Oliveira Fontenelle Maria Madalena de camargo Forte Natural Polymers Laboratory PPGCNState University of CearáFortaleza60.714.903Brazil Polymeric Materials Laboratory PPGE3MFederal University of Rio Grande do SulPorto Alegre91501-970Brazil Natural Product chemistry Laboratory PPGCNState University of CearáFortaleza60.714.903Brazil Food Hygiene and Microbiology Laboratory PPGCTAFederal University of Rio Grande do SulPorto Alegre91501-970Brazil Microbiology Laboratory Medicine SchoolFederal University of CearáSobral62010-560Brazil
With the increase in antimicrobial resistance,it has become necessary to explore alternative approaches for combating and preventing ***-cinnamaldehyde(cNM)and Benzyl4-amino(B4AM)are bioactive compounds derived from c... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论