咨询与建议

限定检索结果

文献类型

  • 88,471 篇 期刊文献
  • 5,966 篇 会议
  • 2,740 册 图书
  • 89 篇 学位论文
  • 13 篇 报纸

馆藏范围

  • 96,031 篇 电子文献
  • 1,301 种 纸本馆藏

日期分布

学科分类号

  • 39,250 篇 医学
    • 32,102 篇 临床医学
    • 4,562 篇 医学技术(可授医学...
    • 4,290 篇 基础医学(可授医学...
    • 3,193 篇 公共卫生与预防医...
    • 2,882 篇 中西医结合
    • 2,239 篇 药学(可授医学、理...
  • 36,517 篇 工学
    • 9,851 篇 材料科学与工程(可...
    • 5,750 篇 化学工程与技术
    • 5,072 篇 生物医学工程(可授...
    • 4,212 篇 机械工程
    • 3,991 篇 计算机科学与技术...
    • 3,741 篇 电子科学与技术(可...
    • 3,459 篇 电气工程
    • 3,448 篇 力学(可授工学、理...
    • 3,065 篇 动力工程及工程热...
    • 2,690 篇 环境科学与工程(可...
    • 2,423 篇 地质资源与地质工...
    • 2,307 篇 冶金工程
    • 2,185 篇 控制科学与工程
    • 2,163 篇 水利工程
  • 25,115 篇 理学
    • 7,100 篇 化学
    • 6,797 篇 物理学
    • 5,391 篇 生物学
    • 4,612 篇 数学
    • 2,568 篇 地质学
    • 2,419 篇 地球物理学
    • 2,337 篇 天文学
  • 7,992 篇 农学
    • 2,807 篇 作物学
  • 4,703 篇 管理学
    • 2,035 篇 管理科学与工程(可...
  • 3,020 篇 经济学
    • 2,555 篇 应用经济学
  • 2,795 篇 法学
  • 2,671 篇 教育学
  • 1,463 篇 文学
  • 552 篇 艺术学
  • 527 篇 历史学
  • 460 篇 哲学
  • 154 篇 军事学

主题

  • 823 篇 ct
  • 807 篇 治疗
  • 686 篇 mri
  • 524 篇 病人
  • 509 篇 诊断
  • 465 篇 患者
  • 464 篇 of
  • 416 篇 儿童
  • 388 篇 美国
  • 347 篇 mr
  • 339 篇 and
  • 338 篇 中国
  • 248 篇 cancer
  • 219 篇 analysis
  • 147 篇 disease
  • 141 篇 microstructure
  • 141 篇 energy
  • 138 篇 model
  • 129 篇 印度
  • 125 篇 treatment

机构

  • 225 篇 中国人民公安大学
  • 170 篇 四川省人民医院
  • 162 篇 上海第二医科大学...
  • 160 篇 北京大学
  • 124 篇 中国人民大学
  • 98 篇 清华大学
  • 82 篇 香港理工大学
  • 80 篇 华中科技大学
  • 80 篇 上海市第一人民医...
  • 78 篇 南京大学
  • 77 篇 浙江省人民医院
  • 69 篇 上海交通大学
  • 68 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 national researc...
  • 66 篇 institut fur the...
  • 66 篇 dept.of physics ...

作者

  • 210 篇 叶鹏
  • 87 篇 刘莉
  • 85 篇 h.murayama
  • 85 篇 j.d.jackson
  • 85 篇 g.d'ambrosio
  • 85 篇 m.white
  • 70 篇 郭俊
  • 65 篇 朱国栋
  • 63 篇 china
  • 61 篇 p.de jong
  • 60 篇 mohamed s. el na...
  • 48 篇 唐光健
  • 44 篇 王铮
  • 42 篇 general administ...
  • 40 篇 people’s bank of...
  • 35 篇 李长根
  • 34 篇 郭战宏
  • 33 篇 崔荣
  • 33 篇 v.i.belousov
  • 28 篇 陈瑜

语言

  • 59,481 篇 中文
  • 37,788 篇 英文
  • 2 篇 日文
  • 1 篇 法文
检索条件"作者=S.Vreema.n"
97279 条 记 录,以下是41-50 订阅
排序:
A 63-Year-Old Male with D-Transposition of the Great Arteries Who Had an Early Form of the Arterial switch Operation
收藏 引用
Congenital Heart Disease 2024年 第1期19卷 65-68页
作者: Michael A.Rebolledo Jane s.Yao Jason n.Johnson Umar s.Boston Benjamin R.Waller III Division of Pediatric Cardiology Department of PediatricsThe University of Tennessee Health Science CenterThe Heart InstituteLe Bonheur Children’s HospitalMemphisUSA College of Medicine The University of Tennessee Health ScienceMemphisUSA Division of Pediatric Cardiothoracic surgery Department of SurgeryThe University of Tennessee Health Science CenterHeart InstituteLe Bonheur Children’s HospitalMemphisUSA
We describe a 63-year-old male who appears to have undergone an early form of the arterial switch operation for D-transposition of the great arteries performed in the *** review the clinical and imaging data that supp... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Enhanced termination of zinc and cadmium ions from wastewater employing plain and chitosan-modified mxenes: synthesis, characterization,and adsorption performance
收藏 引用
Green Chemical Engineering 2024年 第3期5卷 339-347页
作者: njood R.Azeez suhaib s.salih Mohammed Kadhom Harith n.Mohammed Tushar K.Ghosh Department of Chemical Engineering College of Engineering University of Tikrit Department of Environmental science College of Energy and Environmental Science Al-Karkh University of Science Department of nuclear science & Engineering Institute University of Missouri-Columbia
Zinc and cadmium pollutants cause a significant environmental effect that cannot be ignored. Due to their considerable amount in an aqueous environment, industries are seeking suitable adsorbents that are environmenta... 详细信息
来源: 同方期刊数据库 同方期刊数据库 评论
Measurement of yields and angular distributions ofγ-quanta from the interaction of 14.1 MeV neutrons with oxygen,phosphorus,and sulfur
收藏 引用
Chinese Physics C 2024年 第3期48卷 79-92页
作者: D.n.Grozdanov n.A.Fedorov s.B.Dabylova Yu.n.Kopatch I.n.Ruskov V.R.skoy T.Yu.Tretyakova C.Hramco P.I.Kharlamov G.V.Pampushik P.G.Filonchik A.V.Andreev Joint Institute for nuclear Research(JInR) DubnaRussia Institute for nuclear Research and nuclear Energy Bulgarian Academy of SciencesSofiaBulgaria Faculty of Physics Lomonosov Moscow State UniversityMoscowRussia L.n.Gumilyov Eurasian national University AstanaKazakhstan skobeltsyn Institute of nuclear Physics Moscow State UniversityMoscowRussia Institute of Chemistry of Moldova ChisinauRepublic of Moldova Moscow Institute of Physics and Technology MoscowRussia
A study of the inelastic scattering of neutrons with an energy of 14.1 MeV on the nuclei of oxygen,phosphorus,and sulfur was performed at the TAnGRA facility at JInR(Dubna).The experiment aimed to refine existing data... 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
Changes in childrens cardiorespiratory fitness and body mass index over the course of the COVID‑19 pandemic:a 34‑month longitudinal study of 331 primary school children
收藏 引用
World Journal of Pediatrics 2024年 第2期20卷 185-188页
作者: Gerald Jarnig Reinhold Kerbl Mireille n.M.van Poppel Institute of Human Movement science Sport and HealthUniversity of GrazMozartgasse 148010 GrazAustria Department of Pediatrics and Adolescent Medicine LKH Hochsteiermark8700 LeobenAustria
In late 2019,heavy restrictions were enforced on public activities worldwide to diminish the spread of the severe acute respiratory syndrome coronavirus 2(sARs-CoV-2)virus[1].These restrictions,which included school c... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
sodium nitroprusside as a signal molecule for up-regulating membrane characteristics,antioxidant defense system to improve flax productivity under water stress
收藏 引用
Oil Crop science 2024年 第3期9卷 160-169页
作者: n.M.Al-Ashkar B.A.Bakry H.M.s.El-Bassiouny M.M.s.Abdallah M.s.sadak Botany Department Agricultural and Biological Research InstituteNational Research Centre33 El Bohouth Street P.O.12622DokkiGizaEgypt Field Crops Research Department Agricultural and Biological Research InstituteNational Research Centre33 El Bohouth Street P.O.12622DokkiGizaEgypt
Water stress is a critical environmental adversity that significantly impacts the growth,development,and yield of flax *** this study,flax seeds were cultivated under different water irrigation requirements(WIR)(100%,... 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
Irisin/BDnF signaling in the muscle-brain axis and circadian system: A review
收藏 引用
The Journal of Biomedical Research 2024年 第1期38卷 1-16页
作者: Alexey n.Inyushkin Vitalii s.Poletaev Elena M.Inyushkina Igor s.Kalberdin Andrey A.Inyushkin Department of Human&Animal Physiology Samara National Research UniversitySamara 443011Russia.
In mammals,the timing of physiological,biochemical and behavioral processes over a 24-h period is controlled by circadian *** entrain the master clock located in the suprachiasmatic nucleus of the hypothalamus to a pr... 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
Immune response to inactivated bacterial vector carrying the recombinant K39 antigen of Leishmania infantum in mice
收藏 引用
Asian Pacific Journal of Tropical Biomedicine 2024年 第5期14卷 199-206页
作者: Lucelina s.Araújo Bruno B.silva Eduarda n.F.n.santos Arnaldo s.Bezerra samuel s.Frota Assis R.Montenegro Eridan O.P.T.Florean Maurício Fvan Tilburg Maria Izabel F.Guedes Laboratory of Biotechnology and Molecular Biology Northeast Biotechnology NetworkState University of CearáFortalezaBrazil Faculty of Veterinary Medicine State University of CearáFortalezaBrazil
Objective:To evaluate the immunological response elicited by an inactivated bacterial vector carrying the K39 antigen of Leishmania infantum,and a purified ***:Mice were subjected to the following treatments:(1)Purifi... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Polio eradication surveillance in sri Lanka,2019-2023
收藏 引用
Asian Pacific Journal of Tropical Medicine 2024年 第6期17卷 268-272页
作者: M.A.Y.Fernando n.s.Madarasinghe C.Rangana n.Weerasinghe D.C.U.D.Weligamage J.I.Abeynayake Department of Medical Microbiology and Immunology Faculty of MedicineUniversity of ColomboSri Lanka Department of Virology Medical Research InstituteColombo 08Sri Lanka Medical Research Institute Colombo 08Sri Lanka
Objective:To evaluate the polio laboratory surveillance carried out from January,2019 to May,2023 by the Polio Regional Reference Laboratory,sri ***:This retrospective study analyzed all stool samples received under t... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Weather influenced nestling growth of an insectivorous but not a granivorous grassland passerine in Argentina
收藏 引用
Avian Research 2024年 第2期15卷 156-162页
作者: Martín Alejandro Colombo Adrian Jauregui Luciano n.segura Laboratorio de Ecología de Aves.Institute“Dr.Raúl A.Ringuelet”(ILPLA)-UnLP/COnICET Boulevard 1201437La PlataB1900Buenos AiresArgentina
nestling growth of birds can be affected by weather *** general,it is expected that higher temper-atures favor growth by improving food availability and nestling metabolism,while rain hinders it by reducing foraging *... 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
nickel-based cerium zirconate inorganic complex structures for CO_(2)valorisation via dry reforming of methane
收藏 引用
Journal of Environmental sciences 2024年 第6期140卷 12-23页
作者: Juan Luis Martín-Espejo Loukia-Pantzechroula Merkouri Jesúsndara-Loe José Antonio Odriozola Tomas Ramirez Reina Laura Pastor-Pérez Department of Inorganic Chemistry and Material sciences Institute of seville University of Seville-CSICSeville 41092Spain Department of Chemical and Process Engineering University of SurreyGuildford GU27XHUnited Kingdom
The increasing anthropogenic emissions of greenhouse gases(GHG)is encouraging extensive research in CO_(2)*** reforming of methane(DRM)depicts a viable strategy to convert both CO_(2)and CH4into syngas,a worthwhile 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