咨询与建议

限定检索结果

文献类型

  • 421,250 篇 期刊文献
  • 23,935 篇 会议
  • 14 册 图书

馆藏范围

  • 445,199 篇 电子文献
  • 0 种 纸本馆藏

日期分布

学科分类号

  • 190,237 篇 医学
    • 148,358 篇 临床医学
    • 13,058 篇 中西医结合
    • 10,742 篇 基础医学(可授医学...
    • 9,009 篇 药学(可授医学、理...
    • 8,941 篇 公共卫生与预防医...
    • 8,709 篇 医学技术(可授医学...
    • 5,834 篇 中药学(可授医学、...
  • 165,854 篇 工学
    • 36,611 篇 材料科学与工程(可...
    • 34,994 篇 化学工程与技术
    • 15,648 篇 计算机科学与技术...
    • 14,604 篇 电子科学与技术(可...
    • 12,045 篇 机械工程
    • 9,177 篇 软件工程
    • 9,124 篇 控制科学与工程
    • 8,929 篇 生物医学工程(可授...
    • 8,031 篇 力学(可授工学、理...
    • 7,981 篇 仪器科学与技术
    • 7,564 篇 电气工程
    • 7,477 篇 光学工程
    • 7,116 篇 动力工程及工程热...
    • 6,134 篇 环境科学与工程(可...
  • 126,768 篇 理学
    • 31,476 篇 数学
    • 26,262 篇 化学
    • 25,100 篇 物理学
    • 19,420 篇 生物学
    • 5,790 篇 地质学
  • 28,594 篇 农学
    • 8,842 篇 作物学
    • 5,710 篇 农业资源与环境
  • 14,263 篇 管理学
    • 9,391 篇 管理科学与工程(可...
  • 8,328 篇 经济学
    • 7,735 篇 应用经济学
  • 3,654 篇 文学
  • 3,260 篇 教育学
  • 2,015 篇 法学
  • 1,093 篇 艺术学
  • 711 篇 军事学
  • 709 篇 历史学
  • 583 篇 哲学

主题

  • 5,094 篇 cancer
  • 4,130 篇 of
  • 3,857 篇 case report
  • 3,129 篇 and
  • 2,861 篇 treatment
  • 2,835 篇 apoptosis
  • 2,575 篇 diagnosis
  • 2,572 篇 prognosis
  • 2,496 篇 liver
  • 2,420 篇 disease
  • 2,385 篇 covid-19
  • 2,172 篇 surgery
  • 2,140 篇 analysis
  • 2,045 篇 inflammation
  • 2,010 篇 hepatocellular c...
  • 1,995 篇 model
  • 1,804 篇 cell
  • 1,761 篇 system
  • 1,607 篇 diabetes
  • 1,549 篇 machine learning

机构

  • 1,578 篇 university of ch...
  • 458 篇 department
  • 370 篇 北京大学
  • 359 篇 ieee
  • 326 篇 university of ch...
  • 311 篇 beijing
  • 304 篇 department of ch...
  • 270 篇 department of ma...
  • 224 篇 department of ch...
  • 216 篇 清华大学
  • 161 篇 department of en...
  • 159 篇 中国地质大学
  • 154 篇 peking universit...
  • 152 篇 浙江大学
  • 148 篇 department of el...
  • 140 篇 department of co...
  • 138 篇 department of au...
  • 129 篇 department of ma...
  • 128 篇 中国科学院大学
  • 127 篇 department of me...

作者

  • 689 篇 wei zhang
  • 639 篇 wei wang
  • 620 篇 wei li
  • 543 篇 li li
  • 488 篇 li zhang
  • 483 篇 jing wang
  • 474 篇 lei wang
  • 455 篇 wei liu
  • 427 篇 yan li
  • 396 篇 jing li
  • 391 篇 jun wang
  • 389 篇 jing zhang
  • 377 篇 yang yang
  • 356 篇 hui wang
  • 347 篇 yu wang
  • 325 篇 yang liu
  • 324 篇 yu zhang
  • 319 篇 lei zhang
  • 307 篇 yan wang
  • 292 篇 jian wang

语言

  • 378,152 篇 英文
  • 67,043 篇 中文
  • 4 篇 法文
检索条件"机构=Department of Gastr-oenterology"
445199 条 记 录,以下是11-20 订阅
排序:
Autism spectrum disorder:difficulties in diagnosis and microRNA biomarkers
收藏 引用
Neural Regeneration Research 2025年 第10期20卷 2776-2786页
作者: Bridget Martinez Philip V.Peplow department of Pharmacology University of Nevada-RenoRenoNVUSA department of Medicine University of Nevada-RenoRenoNVUSA department of Anatomy University of OtagoDunedinNew Zealand
We performed a PubMed search for microRNAs in autism spectrum disorder that could serve as diagnostic biomarkers in patients and selected 17 articles published from January 2008 to December 2023,of which 4 studies wer... 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
Few-shot learning for screening 2D Ga2CoS4-x supported single-atom catalysts for hydrogen production
收藏 引用
Journal of Energy Chemistry 2025年 第1期100卷 665-673页
作者: Nabil Khossossi Poulumi Dey department of Mechanical Engineering (ME) Delft University of Technology
Hydrogen generation and related energy applications heavily rely on the hydrogen evolution reaction(HER),which faces challenges of slow kinetics and high *** electrocatalysts,particularly single-atom catalysts (SAC... 详细信息
来源: 同方期刊数据库 同方期刊数据库 评论
A Synergistic Multi-Attribute Decision-Making Method for Educational Institutions Evaluation Using Similarity Measures of Possibility Pythagorean Fuzzy Hypersoft Sets
收藏 引用
Computer Modeling in Engineering & Sciences 2025年 第1期142卷 501-530页
作者: Khuram Ali Khan Saba Mubeen Ishfaq Atiqe Ur Rahman Salwa El-Morsy department of Mathematics University of SargodhaSargodha40100Pakistan department of Mathematics University of Management and TechnologyLahore54000Pakistan department of Mathematics College of ScienceQassim UniversityBuraydah51452Saudi Arabia
Due to the numerous variables to take into account as well as the inherent ambiguity and uncertainty,evaluating educational institutions can be *** concept of a possibility Pythagorean fuzzy hypersoft set(pPyFHSS)is m... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Small extracellular vesicles derived from cerebral endothelial cells with elevated microRNA 27a promote ischemic stroke recovery
收藏 引用
Neural Regeneration Research 2025年 第1期20卷 224-233页
作者: Yi Zhang Zhongwu Liu Michael Chopp Michael Millman Yanfeng Li Pasquale Cepparulo Amy Kemper Chao Li Li Zhang Zheng Gang Zhang department of Neurology Henry Ford HospitalDetroitMIUSA department of Physics Oakland UniversityRochesterMIUSA department of Pathology Henry Ford HospitalDetroitMIUSA Division of Pharmacology Department of NeuroscienceReproductive and Dentistry SciencesSchool of MedicineUniversity of Naples“Federico Ⅱ”NaplesItaly
Axonal remodeling is a critical aspect of ischemic brain repair processes and contributes to spontaneous functional *** previous in vitro study demonstrated that exosomes/small extracellular vesicles(sEVs)isolated fro... 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
Ru/NiMnB spherical cluster pillar for highly proficient green hydrogen electrocatalyst at high current density
收藏 引用
Journal of Energy Chemistry 2025年 第1期100卷 397-408页
作者: Md Ahasan Habib Shusen Lin Mehedi Hasan Joni Sumiya Akter Dristy Rutuja Mandavkar Jae-Hun Jeong Jihoon Lee department of Electronic Engineering College of Electronics and Information Kwangwoon University
Advanced OER/HER electrocatalytic alternatives are crucial for the wide adaptation of green hydrogen ***,Ru/NiMnB spherical cluster pillar (SCP),denoted as Ru/NiMnB,is synthesized using a combination of electro-depo... 详细信息
来源: 同方期刊数据库 同方期刊数据库 评论
Potassium ions and cyano group modified g-C3N4 for effective generation of H2O2 through two-electron oxygen reduction
收藏 引用
Science China Chemistry 2025年 第1期68卷 192-200页
作者: Dongying Wang Shulan Pu Yongmin Chen Ke Lei Yujie Duan Linjiao Mao Xuhui Zeng Xi Luo Yuntao Zhang Yuqin Dong Jin Zhong Zhang Yan Sun School of Mechanical Engineering Chengdu University department of Chemistry and Biochemistry University of California
Potassium ions (K+) doped graphitic carbon nitride (g-C3N4) was prepared by a thermal etching method using potassium hydroxide (KOH) as an ion *** transform infrared spectroscopy (FTIR) and X-ray photoelectron... 详细信息
来源: 同方期刊数据库 同方期刊数据库 评论
Neurocircuit regeneration by extracellular matrix reprogramming
收藏 引用
Neural Regeneration Research 2025年 第8期20卷 2300-2301页
作者: Shengzhang Su Ian N.Levasseur Kimberly M.Alonge department of Medicinal Chemistry University of WashingtonSeattleWAUSA department of Chemistry University of WashingtonSeattleWAUSA department of Medicine University of Washington Medicine Diabetes InstituteSeattleWAUSA
The brain's extracellular matrix(ECM),which is comprised of protein and glycosaminoglycan(GAG)scaffolds,constitutes 20%-40% of the human brain and is considered one of the largest influencers on brain cell functioning... 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
Microglia:a promising therapeutic target in spinal cord injury
收藏 引用
Neural Regeneration Research 2025年 第2期20卷 454-463页
作者: Xiaowei Zha Guoli Zheng Thomas Skutella Karl Kiening Andreas Unterberg Alexander Younsi department of Neurosurgery Heidelberg University HospitalHeidelbergGermany department of Neuroanatomy Institute for Anatomy and Cell BiologyHeidelberg UniversityHeidelbergGermany
Microglia are present throughout the central nervous system and are vital in neural repair,nutrition,phagocytosis,immunological regulation,and maintaining neuronal *** a healthy spinal cord,microglia are accountable f... 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 New Encryption Mechanism Supporting the Update of Encrypted Data for Secure and Efficient Collaboration in the Cloud Environment
收藏 引用
Computer Modeling in Engineering & Sciences 2025年 第1期142卷 813-834页
作者: Chanhyeong Cho Byeori Kim Haehyun Cho Taek-Young Youn department of Cyber Security Dankook UniversityYongin16890Republic of Korea department of Software Soongsil UniversitySeoul07027Republic of Korea
With the rise of remote collaboration,the demand for advanced storage and collaboration tools has rapidly ***,traditional collaboration tools primarily rely on access control,leaving data stored on cloud servers vulne... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Artificial Circulation System Algorithm:A Novel Bio-Inspired Algorithm
收藏 引用
Computer Modeling in Engineering & Sciences 2025年 第1期142卷 635-663页
作者: NerminÖzcan Semih Utku Tolga Berber department of Biomedical Technologies Dokuz Eylül UniversityIzmir35390Turkey department of Biomedical Engineering Iskenderun Technical UniversityIskenderun31200Turkey department of Computer Engineering Dokuz Eylül UniversityIzmir35390Turkey department of Statistics and Computer Sciences Karadeniz Technical UniversityTrabzon61080Turkey
Metaheuristics are commonly used in various fields,including real-life problem-solving and engineering appli*** present work introduces a novel metaheuristic algorithm named the Artificial Circulatory System Algorith... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论