咨询与建议

限定检索结果

文献类型

  • 81,732 篇 期刊文献
  • 3,506 篇 会议
  • 2,624 册 图书
  • 82 篇 学位论文
  • 13 篇 报纸

馆藏范围

  • 86,709 篇 电子文献
  • 1,294 种 纸本馆藏

日期分布

学科分类号

  • 35,077 篇 医学
    • 28,329 篇 临床医学
    • 4,157 篇 医学技术(可授医学...
    • 2,716 篇 基础医学(可授医学...
    • 2,621 篇 中西医结合
    • 2,018 篇 公共卫生与预防医...
    • 1,648 篇 药学(可授医学、理...
  • 28,465 篇 工学
    • 5,585 篇 材料科学与工程(可...
    • 3,686 篇 生物医学工程(可授...
    • 3,313 篇 化学工程与技术
    • 2,055 篇 电子科学与技术(可...
    • 2,046 篇 计算机科学与技术...
    • 1,830 篇 机械工程
    • 1,320 篇 动力工程及工程热...
    • 1,220 篇 仪器科学与技术
    • 1,144 篇 软件工程
    • 1,111 篇 地质资源与地质工...
    • 1,023 篇 力学(可授工学、理...
    • 993 篇 光学工程
  • 14,574 篇 理学
    • 2,747 篇 物理学
    • 2,676 篇 数学
    • 2,596 篇 化学
    • 2,064 篇 生物学
    • 1,283 篇 地质学
  • 6,090 篇 农学
    • 1,543 篇 作物学
    • 1,100 篇 畜牧学
    • 1,050 篇 农业资源与环境
  • 3,976 篇 管理学
    • 1,888 篇 管理科学与工程(可...
    • 1,158 篇 公共管理
  • 2,737 篇 经济学
    • 2,230 篇 应用经济学
  • 2,066 篇 教育学
    • 1,368 篇 教育学
  • 1,882 篇 法学
  • 1,272 篇 文学
  • 453 篇 历史学
  • 406 篇 艺术学
  • 399 篇 哲学
  • 139 篇 军事学

主题

  • 823 篇 治疗
  • 801 篇 ct
  • 662 篇 mri
  • 500 篇 诊断
  • 422 篇 患者
  • 412 篇 of
  • 384 篇 病人
  • 367 篇 儿童
  • 366 篇 美国
  • 341 篇 mr
  • 287 篇 and
  • 283 篇 中国
  • 220 篇 cancer
  • 195 篇 covid-19
  • 160 篇 analysis
  • 132 篇 energy
  • 121 篇 microstructure
  • 120 篇 印度
  • 109 篇 model
  • 109 篇 treatment

机构

  • 167 篇 四川省人民医院
  • 162 篇 上海第二医科大学...
  • 141 篇 北京大学
  • 108 篇 中国人民大学
  • 107 篇 中国科学院大学
  • 102 篇 中国人民公安大学
  • 87 篇 清华大学
  • 79 篇 上海市第一人民医...
  • 74 篇 华中科技大学
  • 73 篇 香港理工大学
  • 68 篇 上海交通大学医学...
  • 67 篇 institute for pa...
  • 67 篇 california insti...
  • 67 篇 department of ph...
  • 67 篇 department of ph...
  • 67 篇 department of ph...
  • 67 篇 desy d-15735 zeu...
  • 67 篇 georg-august-uni...
  • 67 篇 bartol research ...
  • 67 篇 kavli institute ...

作者

  • 208 篇 叶鹏
  • 92 篇 郭战宏
  • 84 篇 f.krauss
  • 84 篇 g.weiglein
  • 84 篇 h.murayama
  • 83 篇 j.parsons
  • 83 篇 j.d.jackson
  • 83 篇 刘莉
  • 82 篇 g.d'ambrosio
  • 82 篇 r.s.chivukula
  • 79 篇 y.kwon
  • 67 篇 郭俊
  • 66 篇 李开
  • 66 篇 m.white
  • 60 篇 s.blusk
  • 59 篇 mohamed s. el na...
  • 48 篇 朱国栋
  • 46 篇 唐光健
  • 42 篇 m.drees
  • 40 篇 李军

语言

  • 57,107 篇 中文
  • 30,839 篇 英文
  • 1 篇 法文
  • 1 篇 日文
检索条件"作者=S.Zahter"
87957 条 记 录,以下是61-70 订阅
Capsule endoscopy:Do we still need it after 24 years of clinical use?
收藏 引用
World Journal of Gastroenterology 2025年 第5期31卷 140-147页
作者: Ahmed Tawheed Alaa Ismail Mohab s Amer Osama Elnahas Tawhid Mowafy Department of Endemic Medicine Faculty of MedicineHelwan UniversityCairo 11795Egypt Faculty of Medicine Helwan UniversityCairo 11795Egypt Department of Research SMART Company for Research ServicesCairo 11795Egypt Department of Internal Medicine Gardenia Medical CenterDoha 0000Qatar
In this letter,we comment on a recent article published in the World Journal of Gastroenterology by Xiao et al,where the authors aimed to use a deep learning model to automatically detect gastrointestinal lesions duri... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Utilizing On-the-Go soil sensors to Explore Correlations between Electrical Conductivity, soil Reflectance, slope, and Elevation of Mississippi Farm soils
收藏 引用
Agricultural sciences 2025年 第1期16卷 112-122页
作者: Reginald s. Fletcher UsDA-ARs Stoneville MS USA
Ten physical and environmental variables collected from an on-the-go soil sensor at two field sites (MF3E and MF11s) in Mississippi, UsA, were analyzed to assess soil variability and the interrelationships among the m... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
site index determination using a time series of airborne laser scanning data
收藏 引用
Forest Ecosystems 2025年 第1期12卷 93-103页
作者: Maria Åsnes Moan Ole Martin Bollandsås svetlana saarela Terje Gobakken Erik Næsset Hans Ole Ørka Lennart Noordermeer Faculty of Environmental sciences and Natural Resource Management Norwegian University of Life SciencesÅs1432Norway
site index(sI)is determined from the top height development and is a proxy for forest productivity,defined as the expected top height for a given species at a certain index *** Norway,an index age of 40 years is *** u... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Photoluminescence upgradation of La_(2)MgTiO_(6):2%Dy^(3+) perovskite with monovalent(Li^(+)),divalent(Ba^(2+),sr^(2+)) and trivalent(Bi^(3+),sm^(3+))cation sensitization
收藏 引用
Journal of Rare Earths 2025年 第1期43卷 47-56,I0002页
作者: V.P.Veena K.Arun C.K.shilpa s.V.Jasira K.M.Nissamudeen school of Pure and Applied Physics Kannur UniversityPayyanur CampusEdatKannurKrala67 India Department of Nanoscience and Nanotechnology Kannur UniversityPayyanur CampusEdatkannurKerala670327India
Nano phosphors of 2%Dy^(3+)(wt%)doped La_(2)MgTiO_(6) and monovalent/divalent/trivalent co-doped La_(1.98)Dy_(0.02)MgTiO_(6):x%A^(y+)(A^(y+):Li+,Ba^(2+),sr^(2+),Bi^(3+),and sm^(3+);0≤x≤2 wt%)were synthesized by comb... 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
Targeting harmful effects of non-excitatory amino acids as an alternative therapeutic strategy to reduce ischemic damage
收藏 引用
Neural Regeneration Research 2025年 第9期20卷 2454-2463页
作者: Victoria Jiménez Carretero IrisÁlvarez-Merz Jorge Hernández-Campano sergei A.Kirov Jesús M.Hernández-Guijo Department of Pharmacology and Therapeutic School of MedicineUniv.Autónoma de MadridMadridSpain Ramón y Cajal Institute for Health Research(IRYCIs) Neurobiology-Research ServiceHospital Ramón y CajalMadridSpain Institute of Neurobiology Faculty of Mathematics and Natural SciencesHeinrich Heine University DüsseldorfDüsseldorfGermany Department of Neuroscience and Regenerative Medicine&Department of Neurosurgery Medical College of Georgia at Augusta UniversityAugustaGAUSA
The involvement of the excitatory amino acids glutamate and aspartate in ce rebral ischemia and excitotoxicity is ***,the role of non-excitatory amino acids in brain damage following a stroke or brain trauma remains l... 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
Merging bound states in the continuum in an open acoustic resonator
收藏 引用
science China(Physics,Mechanics & Astronomy) 2025年 第1期68卷 120-127页
作者: Lujun Huang Bin Jia Artem s.Pilipchuk sibo Huang Chen shen Almas F.sadreev Yong Li Andrey E.Miroshnichenko school of Physics and Electronic sciences East China Normal UniversityShanghai 200241China Institute of Acoustics Tongji UniversityShanghai 200092China L.V.Kirensky Institute of Physics Krasnoyarsk 660036Russia Department of Mechanical Engineering Rowan UniversityGlassboro 08028USA school of Engineering and Technology University of New South Wales at CanberraACT 2610Australia
Bound states in the continuum(BICs)are perfectly localized resonances despite embedding in the continuum ***,an isolated BIC is very sensitive to the structure ***,we report merging acoustic BICs in a single open reso... 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
Clinical profile and outcomes of ocular surface squamous neoplasia at the Philippine General Hospital:a retrospective study
收藏 引用
International Journal of Ophthalmology(English edition) 2025年 第1期18卷 132-138页
作者: Mary Ellaine s.Diaz Ruben Lim Bon siong Justin Alan Yao Gary John V.Mercado Department of Ophthalmology and Visual sciences University of the Philippines Manila-Philippine General HospitalManila 1000Philippines Eye Institute St.Luke’s Medical CenterQuezon CityManila 1112Philippines Eye and Vision Institute The Medical CityPasig 1800Philippines
AIM:To evaluate the demographics,clinical characteristics,treatments,and outcomes of patients with ocular surface squamous neoplasia(OssN)at the Philippine General ***:This was a single-center,11-year retrospective,cr... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Emerging role of A-kinase anchoring protein 5 signaling in reward circuit function
收藏 引用
Neural Regeneration Research 2025年 第10期20卷 2913-2914页
作者: William J.Flerlage Mark L.Dell’Acqua Brian M.Cox Fereshteh s.Nugent Uniformed services University of the Health sciences Department of Pharmacology and Molecular TherapeuticsBethesdaMDUSA Department of Pharmacology University of Colorado School of MedicineAnschutz Medical CampusAuroraCOUSA
There is a strong evidence supporting the hypothesis of synaptic dysfunction as a major contributor to neural circuit and network disruption underlying emotional and mood dysregulation in psychiatric disorders(simmons... 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
Modeling compositional heterogeneity resolves deep phylogeny of flowering plants
收藏 引用
Plant Diversity 2025年 第1期47卷 13-20页
作者: Yongli Wang Yan-Da Li shuo Wang Erik Tihelka Michael s.Engel Chenyang Cai Biofuels Institute School of Environmental and Safety EngineeringJiangsu UniversityZhenjiang 212013China Key Laboratory of Palaeobiology and Petroleum stratigraphy Nanjing Institute of Geology and PalaeontologyChinese Academy of SciencesNanjing 210008China school of Earth sciences University of BristolLife Sciences BuildingTyndall AvenueBristol BS81TQUnited Kingdom College of Marine science and Biological Engineering Qingdao University of Science and TechnologyQingdao 266042China Division of Invertebrate Zoology American Museum of Natural HistoryNew YorkNY 10024-5192USA Facultad de Ciencias Biologicas Universidad Nacional Mayor de San MarcosLima 15081Peru Departamento de Entomología Museo de Historia NaturalUniversidad Nacional Mayor de San MarcosLima 15072Peru
Angiosperms experienced one of the most remarkable radiations of land plants and are now the dominant autotrophs in terrestrial *** phylogenomic studies based on large-scale data from plastid,mitochondrial,or nuclear ... 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
Convergence of COVID-19 and recurrent stroke:In-hospital mortality risks explored
收藏 引用
World Journal of Virology 2025年 第1期14卷 5-8页
作者: Basavraj s Nagoba shree V Dhotre Ajay M Gavkare sachin s Mumbre Pradnya s Dhotre Department of Microbiology Maharashtra Institute of Medical Sciences and Research(Medical College)Latur 413531India Department of Microbiology Ashwini Rural Medical CollegeSolapur 413001India Department of Community Medicine Ashwini Rural Medical CollegeSolapur 413001India Department of Biochemistry Ashwini Rural Medical CollegeSolapur 413001India
This editorial comments on the article by Desai et al,which investigates the impact of coronavirus disease 2019(COVID-19)on in-hospital mortality among patients with recurrent stroke using data from the 2020 National ... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论