咨询与建议

限定检索结果

文献类型

  • 29,314 篇 期刊文献
  • 2,224 篇 会议
  • 1,864 册 图书
  • 20 篇 学位论文
  • 3 篇 报纸

馆藏范围

  • 32,558 篇 电子文献
  • 907 种 纸本馆藏

日期分布

学科分类号

  • 12,065 篇 工学
    • 2,494 篇 材料科学与工程(可...
    • 1,368 篇 生物医学工程(可授...
    • 1,265 篇 化学工程与技术
    • 872 篇 机械工程
    • 850 篇 电子科学与技术(可...
    • 603 篇 地质资源与地质工...
    • 597 篇 计算机科学与技术...
    • 563 篇 动力工程及工程热...
    • 531 篇 仪器科学与技术
    • 498 篇 水利工程
    • 447 篇 电气工程
    • 445 篇 土木工程
  • 10,886 篇 医学
    • 8,937 篇 临床医学
    • 1,456 篇 医学技术(可授医学...
    • 1,055 篇 基础医学(可授医学...
    • 810 篇 中西医结合
    • 731 篇 公共卫生与预防医...
    • 442 篇 药学(可授医学、理...
  • 5,571 篇 理学
    • 1,127 篇 物理学
    • 912 篇 化学
    • 865 篇 生物学
    • 691 篇 数学
    • 665 篇 地质学
  • 2,711 篇 农学
    • 646 篇 畜牧学
    • 613 篇 作物学
    • 442 篇 农业资源与环境
  • 1,351 篇 管理学
    • 577 篇 管理科学与工程(可...
    • 420 篇 公共管理
  • 839 篇 经济学
    • 741 篇 应用经济学
  • 691 篇 教育学
    • 512 篇 教育学
  • 491 篇 文学
  • 459 篇 法学
  • 233 篇 历史学
  • 223 篇 艺术学
  • 198 篇 哲学
  • 65 篇 军事学

主题

  • 247 篇 mri
  • 217 篇 ct
  • 168 篇 患者
  • 155 篇 美国
  • 102 篇 病人
  • 96 篇 mr
  • 80 篇 analysis
  • 76 篇 covid-19
  • 56 篇 cancer
  • 53 篇 北美洲
  • 50 篇 高血压
  • 45 篇 and
  • 45 篇 治疗
  • 43 篇 of
  • 41 篇 pet
  • 41 篇 health
  • 41 篇 diabetes
  • 41 篇 corrosion
  • 41 篇 美利坚合众国
  • 40 篇 temperature

机构

  • 85 篇 中国科学院大学
  • 70 篇 university of ch...
  • 68 篇 university of mi...
  • 67 篇 institute for pa...
  • 67 篇 albert einstein ...
  • 67 篇 dipartimento di ...
  • 67 篇 nikhef p.o.box 4...
  • 67 篇 fysikum stockhol...
  • 67 篇 michigan state u...
  • 67 篇 同济大学
  • 66 篇 NOT FOUND
  • 66 篇 national researc...
  • 66 篇 institut fur the...
  • 66 篇 dept.of physics ...
  • 65 篇 compas group ins...
  • 65 篇 rudolf peierls c...
  • 65 篇 department of ph...
  • 65 篇 nstitucio catala...
  • 65 篇 cern european or...
  • 64 篇 max-planck-insti...

作者

  • 110 篇 george f.gao
  • 85 篇 f.krauss
  • 85 篇 g.weiglein
  • 85 篇 h.murayama
  • 85 篇 j.parsons
  • 85 篇 j.d.jackson
  • 85 篇 g.d'ambrosio
  • 85 篇 r.s.chivukula
  • 85 篇 y.kwon
  • 85 篇 m.white
  • 84 篇 m.drees
  • 75 篇 s.blusk
  • 71 篇 p.de jong
  • 65 篇 k.monig
  • 65 篇 o.dahl
  • 63 篇 b.foster
  • 62 篇 叶鹏
  • 55 篇 g.rybka
  • 54 篇 a.ringwald
  • 49 篇 v.i.belousov

语言

  • 21,721 篇 中文
  • 11,691 篇 英文
  • 1 篇 法文
  • 1 篇 其他
检索条件"作者=omer F Eker"
33425 条 记 录,以下是1-10 订阅
排序:
Evaluation of hypolipidemic Marrubium vulgare effect in Triton WR-1339-induced hyperlipidemia in mice
收藏 引用
Asian Pacific Journal of Tropical Medicine 2016年 第5期9卷 439-445页
作者: Abeer Y Ibrahim Saber f Hendawy Ahmed A A Elsayed Elsayed A omer Medicinal and Aromatic Plants Researches Dept. Pharmaceutical and Drug Industries Division National Research Centre
Objective: To evaluate the hypocholesterolemic and hypotriglyceridemic activities of four Marrbium vulgare(M. vulgare) herb extracts using Triton WR-1339-induced hyperlipidemia in mice. Methods: Hyperlipidemia was dev... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Decline in subarachnoid haemorrhage volumes associated with the first wave of the COVID- 19 pandemic
收藏 引用
Stroke & Vascular Neurology 2021年 第4期6卷 542-552,I0026-I0032页
作者: Thanh N Nguyen Diogo C Haussen Muhammad M Qureshi Hiroshi Yamagami Toshiyuki fujinaka Ossama Y Mansour Mohamad Abdalkader Michael frankel Zhongming Qiu Allan Taylor Pedro Lylyk omer f eker Laura Mechtouff Michel Piotin fabricio Oliveira Lima francisco Mont'Alverne Wazim Izzath Nobuyuki Sakai Mahmoud Mohammaden Alhamza R Al-Bayati Leonardo Renieri Salvatore Mangiafico David Ozretic Vanessa Chalumeau Saima Ahmad Umair Rashid Syed Irteza Hussain Seby John Emma Griffin John Thornton Jose Antonio fiorot Rodrigo Rivera Nadia Hammami Anna M Cervantes-Arslanian Hormuzdiyar H Dasenbrock Huynh Le Vu Viet Quy Nguyen Steven Hetts Romain Bourcier Romain Guile Melanie Walker Malveeka Sharma Don frei Pascal Jabbour Nabeel Herial fawaz Al-Mufti Atilla Ozcan Ozdemir Ozlem Aykac Dheeraj Gandhi Chandril Chugh Charles Matouk Pascale Lavoie Randall Edgell Andre Beer-furlan Michael Chen Monika Killer-Oberpfalzer Vitor Mendes Pereira Patrick Nicholson Vikram Huded Nobuyuki Ohara Daisuke Watanabe Dong Hun Shin Pedro SC Magalhaes Raghid Kikano Santiago Ortega-Gutierrez Mudassir farooqui Amal Abou-Hamden Tatsuo Amano Ryoo Yamamoto Adrienne Weeks Elena A Cora Rotem Sivan-Hoffmann Roberto Crosa Markus Möhlenbruch Simon Nagel Hosam Al-Jehani Sunil A Sheth Victor S Lopez Rivera James E Siegler Achmad fidaus Sani Ajit S Puri Anna Luisa Kuhn Gianmarco Bernava Paolo Machi Daniel G Abud Octavio M Pontes-Neto Ajay K Wakhloo Barbara Voetsch Eytan Raz Shadi Yaghi Brijesh P Mehta Naoto Kimura Mamoru Murakami Jin Soo Lee Ji Man Hong Robert fahed Gregory Walker Eiji Hagashi Steve M Cordina Hong Gee Roh Ken Wong Juan f Arenillas Mario Martinez-Galdamez Jordi Blasco Alejandro Rodriguez Vasquez Luisa fonseca M Luis Silva Teddy Y Wu Simon John Alex Brehm Marios Psychogios William J Mack Matthew Tenser Tatemi Todaka Miki fujimura Roberta Novakovic Jun Deguchi Yuri Sugiura Hiroshi Tokimura Rakesh Khatri Michael Kelly Lissa Peeling Yuichi Murayama Hugh Stephen Winters Johnny Wong Mohamed Teleb Jeremy Payne Hiroki fukuda Kosuke Miyake Junsuke Shimbo Yusuke Sug Neurology RadiologyBoston Medical CenterBostonMassachusettsUSA Neurology Marcus Stroke&Neuroscience CenterGrady Memorial HospitalEmory University School of MedicineAtlantaGAUSA Radiology Radiation OncologyBoston University School of MedicineBostonMassachusettsUSA Neurology National Hospital Organization Osaka National HospitalOsakaJapan Neurosurgery National Hospital Organization Osaka National HospitalOsakaJapan Neurology Alexandria UniversityAlexandriaEgypt Radiology Boston Medical CenterBostonMassachusettsUSA Department of Neurology Xinqiao HospitalChongqingChina Neurosurgery University of Cape TownRondeboschWestern CapeSouth Africa Neurosurgery Interventional NeuroradiologyClinica La Sagrada FamiliaBuenos AiresArgentina Neuroradiologie Neurologie VasculaireHospices Civils de LyonLyonAuvergne-Rhône AlpesFrance Neurologie Vasculaire Hospices Civils de LyonLyonAuvergne-Rhône AlpesFrance Interventional Neuroradiology Fondation Ophtalmologique Adolphe de RothschildParisÎle-de FranceFrance Neurology Hospital Geral de FortalezaFortalezaBrazil Interventional Neuroradiology Hospital Geral de FortalezaFortalezaBrazil Neuroradiology Nottingham University Hospitals NHS TrustNottinghamUK Department of Neurosurgery Kobe City Medical Center General HospitalKobeHyogoJapan Interventional Neurovascular Unit University Hospital CareggiFirenzeToscanaItaly Neuroradiology University Hospital Centre ZagrebZagrebCroatia Interventional Neuroradiology Hopital BicetreLe Kremlin-BicetreFrance Stroke and Interventional Neuroradiology Lahore General HospitalLahorePakistan Neurological Institute Cleveland Clinic Abu DhabiAbu DhabiUAE Department of Radiology Beaumont HospitalDublinIreland Neurology Stroke UnitHospital-Estadual CentralVitoriaBrazil Neuroradiology Instituto de Neurocirugia Dr AsengoSantiagoChile Interventional Neuroradiology Institut National de NeurologieTunisTunisia Neurology Boston Medical CenterBostonMassachusettsUSA Neurosurgery Boston Medical Center
Background During the COVID-19 pandemic,decreased volumes of stroke admissions and mechanical thrombectomy were *** study’s objective was to examine whether subarachnoid haemorrhage(SAH)hospitalisations and ruptured ... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Unusual ovarian hyperstimulation syndrome presentation:Pleural effusion without ascites.A case report
收藏 引用
World Journal of Clinical Cases 2025年 第8期13卷 26-34页
作者: Íngrid Solsona Sara Peralta Yasmina Barral francisco fàbregues Pepita Giménez-Bonafé Department of Physiological Sciences Physiology UnitFaculty of Medicine and Health SciencesBellvitge CampusUniversitat de BarcelonaIDIBELLBarcelona 08907CataloniaSpain Institut Clinic of Gynecology Obstetrics and NeonatologyHospital ClínicInstitut d'Investigacions Biomèdiques August Pi i SunyerFaculty of MedicineUniversity of BarcelonaBarcelona 08036CataloniaSpain Department of Physiological Sciences Faculty of Medicine and Health SciencesBellvitge CampusUniversitat de BarcelonaIDIBELLL'Hospitalet de Llobregat 08907BarcelonaSpain
BACKGROUND Ovarian hyperstimulation syndrome(OHSS)is a life-threatening complication that can occur in the luteal phase or early pregnancy after controlled ovarian *** case report highlights a unique manifestation of ... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Cooling and lubrication techniques in grinding:A state-of-the-art review,applications,and sustainability assessment
收藏 引用
Chinese Journal of Aeronautics 2023年 第7期36卷 76-113页
作者: Ahmed Mohamed Mahmoud IBRAHIM Wei LI Abdel-Hamid ISMAIL MOURAD Mohamed A.E.omer fadl A.ESSA Ahmed Mustafa ABD EL-NABY Mohammad S.Al SOUfI Muhammad f.EZZAT Ammar ElSHEIKH College of Mechanical and Vehicle Engineering Hunan UniversityChangsha 410082China Production Engineering and Mechanical Design Department Faculty of EngineeringMinia UniversityEl Minya 61519Egypt Mechanical and Aerospace Engineering Department College of EngineeringUnited Arab Emirates UniversityAl-Ain 15551United Arab Emirates Department of Production Engineering and Mechanical Design Faculty of EngineeringTanta UniversityTanta 31527Egypt Mechanical Engineering Department Faculty of EngineeringKafrelsheikh UniversityKafrelsheikh 33516Egypt Mechanical Engineering Department College of Engineering and Islamic ArchitectureUmm Al-Qura UniversityMakkah 24231Saudi Arabia Mechanical Engineering Department Faculty of EngineeringUniversity of AlbertaEdmonton T6G 2R3Canada Automotive and Tractors Engineering Department Faculty of EngineeringMinia UniversityEl Minya 61519Egypt Tokyo Institute of Technology Tokyo 152-8550Japan
Grinding technology is an essential manufacturing operation,in particular,when a component with a superfinishing and an ultra-resolution is *** the required strict quality checklist with maintaining a high level of 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
Correlation of gene content in selected bifidobacteria with folate supplier or scavenger status during growth in laboratory media
收藏 引用
fOOD BIOSCIENCE 2023年 第1期51卷 1057-1066页
作者: Celik, omer f. O'Sullivan, Daniel J. Univ Minnesota Microbial & Plant Genom Inst Dept Food Sci & Nutr St Paul MN 55455 USA Ordu Univ Fac Agr Dept Food Engn TR-52200 Ordu Turkiye
five different bifidobacterial cultures were screened to investigate if their de novo folate production ability could be predicated based on their folate biosynthetic gene content. As previously developed folate free ... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Gut virome:New key players in the pathogenesis of inflammatory bowel disease
收藏 引用
World Journal of Methodology 2025年 第2期15卷 27-43页
作者: Helal f Hetta Rehab Ahmed Yasmin N Ramadan Hayam fathy Mohammed Khorshid Mohamed M Mabrouk Mai Hashem Department of Medical Microbiology and Immunology Faculty of MedicineAssiut UniversityAssiut 71515Egypt Division of Microbiology Immunology and BiotechnologyFaculty of pharmacyUniversity of TabukTabuk 71491Saudi Arabia Division of Microbiology Immunology and BiotechnologyDepartment of Natural Products and Alternative MedicineFaculty of PharmacyUniversity of TabukTabuk 71491Saudi Arabia Department of Internal Medicine Division HepatogastroenterologyAssiut UniversityAssiut 71515Egypt Department of Clinical Research Egyptian Developers of Gastroenterology and Endoscopy FoundationCairo 11936Egypt Department of Internal Medicine Faculty of Medicine.Tanta UniversityTanta 31527Egypt Department of Tropical Medicine Gastroenterology and HepatologyAssiut University HospitalAssiut 71515Egypt
Inflammatory bowel disease(IBD)is a chronic inflammatory illness of the *** the mechanism underlying the pathogenesis of IBD is not fully under-stood,it is believed that a complex combination of host immunological res... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
旋流燃烧室对固体燃料冲压发动机药柱表面传热以及燃速的影响
收藏 引用
航空动力学报 2019年 第4期34卷 937-949页
作者: 李唯暄 陈雄 周长省 MUSA omer 南京理工大学机械工程学院 南京210094
为研究旋流燃烧室对固体燃料冲压发动机(SfRJ)药柱表面传热以及燃速的影响,以高密度聚乙烯(HDPE)为燃料,对旋流和无旋工况下的固体燃料冲压发动机进行了连管实验研究,并且编制了二维轴对称湍流燃烧仿真程序,采用流固耦合传热的方法以及... 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
Coxiella burnetii,the causative agent of Q fever in Saudi Arabia:molecular detection from camel and other domestic livestock
收藏 引用
Asian Pacific Journal of Tropical Medicine 2014年 第9期7卷 715-719页
作者: Osama B.Mohammed Abdulrahman A.Jarelnabi Riyadh S.Aljumaah Mohammed A.Alshaikh Amel O.Bakhiet Sawsan A.omer Abdulaziz N.Alagaili Mansour f.Hussein KSU Mammals Research Chair Department of ZoologyCollege of ScienceKing Saudi University Department of Animal Production College of Food & Agricultural SciencesKing Saudi University College of Veterinary Medicine Sudan University of Science and Technology Department of Zoology College of ScienceKing Saud UniversityUniversity Centre for Women StudentsRiyadh 11495Saudi Arabia Saudi Wildlife Authority Riyadh 11575Saudi Arabia
Objective:To detect Coxiella burnetii(***)DNA in clinical specimens from camel,goats,cattle and sheep in the Kingdom of Saudi ***:A total of 367 clinical samples including blood,milk,faeces and urine were collected fr... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Salinity Stress in Wheat:Effects,Mechanisms and Management Strategies
收藏 引用
Phyton-International Journal of Experimental Botany 2022年 第4期91卷 667-694页
作者: Mahmoud f.Seleiman Muhammad Talha Aslam Bushra Ahmed Alhammad MuhammadUmair Hassan Rizwan Maqbool Muhammad Umer Chattha Imran Khan Harun Ireri Gitari omer S.Uslu Rana Roy Martin Leonardo Battaglia Plant Production Department College of Food and Agriculture SciencesKing Saud UniversityRiyadh11451Saudi Arabia Department of Crop Sciences Faculty of AgricultureMenoufia UniversityShibin El-kom32514Egypt Department of Agronomy University of AgricultureFaisalabad38040Pakistan Biology Department College of Science and Humanity StudiesPrince Sattam Bin Abdulaziz UniversityRiyadh11942Saudi Arabia Research Center on Ecological Sciences Jiangxi Agricultural UniversityNanchang330045China Department of Agricultural Sciences and Technology School of Agriculture and Enterprise DevelopmentKenyatta UniversityNairobi00100Kenya Department of field Crops Faculty of AgricultureUniversity of Sutcu ImamKahramanmaras46040Turkey Department of Agroforestry&Environmental Science Faculty of AgricultureSylhet Agricultural UniversitySylhet3100Bangladesh Department of Animal Sciences Cornell UniversityIthaca14850USA
Salinity stress is a major threat to global food production and its intensity is continuously increasing because of anthropogenic *** is a staple food and a source of carbohydrates and calories for the majority of peo... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Second-order optimality conditions f or minimizing a maxfunction
收藏 引用
Science China Mathematics 2000年 第7期43卷 722-733页
作者: 黄力人 K.f.Ng Department of Mathematics South China Normal University Guangzhou 510631 China Department of Mathematics The Chinese University of Hong KongHong KongChina Correspondence should be addressed to K.F.Ng
We study Chaney's and Ben-Tal-Zowe's second-order directional derivatives with applications in minimization problem for max-functions of the formh(x): = max {f(x, τ); τ ∈T},where T is a compact metricspace. We impr... 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