咨询与建议

限定检索结果

文献类型

  • 19,462 篇 期刊文献
  • 1,065 篇 会议
  • 485 册 图书
  • 3 篇 学位论文

馆藏范围

  • 20,876 篇 电子文献
  • 157 种 纸本馆藏

日期分布

学科分类号

  • 9,024 篇 工学
    • 2,427 篇 材料科学与工程(可...
    • 2,172 篇 化学工程与技术
    • 1,084 篇 生物医学工程(可授...
    • 967 篇 机械工程
    • 868 篇 环境科学与工程(可...
    • 688 篇 冶金工程
    • 675 篇 动力工程及工程热...
    • 667 篇 电子科学与技术(可...
    • 661 篇 电气工程
    • 640 篇 力学(可授工学、理...
    • 565 篇 计算机科学与技术...
    • 521 篇 地质资源与地质工...
    • 507 篇 生物工程
  • 8,568 篇 医学
    • 6,597 篇 临床医学
    • 1,238 篇 基础医学(可授医学...
    • 1,058 篇 医学技术(可授医学...
    • 960 篇 药学(可授医学、理...
    • 848 篇 中西医结合
    • 786 篇 公共卫生与预防医...
  • 7,052 篇 理学
    • 2,750 篇 化学
    • 2,096 篇 生物学
    • 1,729 篇 物理学
    • 632 篇 生态学
    • 567 篇 地质学
    • 556 篇 数学
    • 515 篇 地球物理学
    • 486 篇 天文学
  • 2,981 篇 农学
    • 1,025 篇 作物学
    • 596 篇 农业资源与环境
    • 535 篇 畜牧学
  • 597 篇 管理学
  • 370 篇 教育学
  • 296 篇 经济学
  • 218 篇 法学
  • 184 篇 文学
  • 79 篇 历史学
  • 66 篇 艺术学
  • 43 篇 哲学
  • 23 篇 军事学

主题

  • 91 篇 患者
  • 73 篇 ct
  • 69 篇 mri
  • 58 篇 力学性能
  • 57 篇 中国
  • 44 篇 危险因素
  • 42 篇 凋亡
  • 40 篇 c
  • 37 篇 基因
  • 36 篇 气候变化
  • 35 篇 acid
  • 34 篇 基因克隆
  • 33 篇 hepatitis
  • 31 篇 analysis
  • 31 篇 小麦
  • 30 篇 phylogeny
  • 30 篇 吸附
  • 28 篇 diabetes
  • 28 篇 多态性
  • 28 篇 high

机构

  • 105 篇 浙江大学
  • 79 篇 北京大学
  • 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...
  • 67 篇 institut fur the...
  • 67 篇 dept.of physics ...
  • 67 篇 compas group ins...
  • 67 篇 rudolf peierls c...
  • 67 篇 nstitucio catala...
  • 67 篇 department of ph...
  • 67 篇 school of physic...
  • 67 篇 ludwig-maximilia...
  • 67 篇 cea/saclay dsm/i...
  • 66 篇 national researc...
  • 66 篇 department of ph...
  • 66 篇 department of ph...
  • 65 篇 kobayashi-maskaw...

作者

  • 85 篇 h.murayama
  • 85 篇 j.d.jackson
  • 85 篇 g.d'ambrosio
  • 85 篇 m.white
  • 85 篇 p.de jong
  • 85 篇 v.i.belousov
  • 82 篇 v.burkert
  • 76 篇 y.hayato
  • 76 篇 a.v.gritsan
  • 71 篇 a.gurtu
  • 70 篇 m.carena
  • 69 篇 a.masoni
  • 64 篇 kavli ipmu
  • 64 篇 l.pape
  • 60 篇 s.rolli
  • 59 篇 叶鹏
  • 55 篇 a.d.martin
  • 54 篇 b.heltsley
  • 49 篇 s.r.klein
  • 47 篇 d.h.weinberg

语言

  • 13,564 篇 中文
  • 7,443 篇 英文
  • 7 篇 其他
检索条件"作者=Machado l.C."
21015 条 记 录,以下是31-40 订阅
排序:
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 Mol.c.lar 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
Death from caustic ingestion:A case report
收藏 引用
Journal of Acute Disease 2024年 第2期13卷 81-84页
作者: Shao Hui Koh Jacqueline c.l.Tan Department of Emergency Medicine Sengkang General HospitalSingapore
Rationale:Acute caustic ingestion from suicidal intent is not usual in emergency departments in developed *** of the substances commonly ingested by suicidal patients,phosphoric acid,tends to cause multi-system ***’s... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
corrosion testing of X52 and X80 steels immersed in stimulated emulsions using a real petroleum sample
收藏 引用
Petroleum Research 2024年 第2期9卷 304-316页
作者: l.M.Quej-Ake J.l.Alamilla A.contreras Instituto Mexicano del Petróleo Eje Central Lázaro CárdenasNorte 152San Bartolo AtepehuacanGustavo A.MaderoCiudad de MéxicoC.P.07730México
The aim of this study is to evaluate the internal.c.rrosion process on X52 and X80 steels/real petroleum interfaces containing condensed hydrocarbon plus oilfield-produced water,which were subjected to stimulated emul... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Recent Advances in catalytic carbonylation Reactions in Alternative Reaction Media
收藏 引用
chinese Journal of chemistry 2024年 第4期42卷 406-429页
作者: csaba Árvai lászló T.Mika Department of chemical and Environmental Process Engineering Faculty of Chemical Technology and BiotechnologyBudapest University of Technology and EconomicsMűegyetem rkp.3H-1111 BudapestHungary
Since the discovery of the hydroformylation(oxo-synthesis or Roelen reaction)and the Reppe-reaction,the transition metal.c.talyzed carbonylation reactions,providing versatile,facile,and even atom-economic methods for ... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Research of surface-enhanced Raman scattering on Ag@PMBA@c@Au hybrid nanoparticles
收藏 引用
Optoel.c.ronics letters 2024年 第2期20卷 65-69页
作者: TAN Enzhong lÜ Suye liberal Study college Beijing Institute of Petrochemical TechnologyBeijing 102617China
Monodispersed, biocompatible, and readily-functionalized hybrid reporter-embedded core-shell nanopartilces(NPs) have been prepared in a simple route. This composite offers a potential platform for immunochemical detec... 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
Endoscopic ultrasound-guided portal pressure gradient identifies patients with previously undiagnosed clinically significant portal hypertension
收藏 引用
Portal Hypertension & cirrhosis 2024年 第2期3卷 67-74页
作者: Jerome c.Edelson Scott F.D.Edelson John G.Quiles cyrus V.Edelson Eric M.Montminy christian l.Horn John P.Magul.c. Don c.Rockey Department of Gastroenterology and Hepatology Brooke Army Medical CenterFort Sam HoustonTexasUSA Department of Medicine Uniformed Services University of the Health SciencesBethesdaMarylandUSA Department of Medicine Brooke Army Medical CenterFort Sam HoustonTexasUSA John H.Stroger Jr.Hospital of cook county ChicagoIllinoisUSA Digestive Disease Research center Medical University of South CarolinaCharlestonSouth CarolinaUSA
Aims:Portal hypertension(PH)is a compl.c.tion of cirrhosis that leads to hepatic *** the portal pressure gradient(PPG)provides valuable information for disease assessment,staging,and *** this study,we aimed to report ... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
cOVID-19 vaccination produces exercise-responsive SARS-coV-2 specific T-cells regardless of infection history
收藏 引用
Journal of Sport and Health Science 2024年 第1期13卷 99-107页
作者: Kyle A.Smith Tiffany M.Zúñiga Forrest l.Baker Helena Batatinha charles R.Pedlar Shane c.Burgess Michael P.Gustafson Emmanuel Katsanis Richard J.Simpson School of Nutritional Sciences and Wellness The University of ArizonaTucsonAZ 85721USA Department of Pediatrics The University of ArizonaTucsonAZ 85724USA Faculty of Sport Allied Health and Performance ScienceSt.Mary's UniversityTwickenham TW14SXUK Institute of Sport Exercise and Health University College LondonLondon WC1E 7HUUK Department of Animal and comparative Biomedical Sciences The University of ArizonaTucsonAZ 85721USA The University of Arizona cancer center The University of ArizonaTucsonAZ 85719USA laboratory Medicine and Pathology Mayo Clinic ArizonaPhoenixAZ 85054USA Department of Immunobiology The University of ArizonaTucsonAZ 85724USA Department of Medicine The University of ArizonaTucsonAZ 85724USA Department of Pathology The University of ArizonaTucsonAZ 85724USA
Background:The mobilization and redistribution of severe acute respiratory syndrome coronavirus 2(SARS-coV-2)specific T-cells and neutralizing antibodies(nAbs)during exercise is purported to increase immune surveillan... 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
Nonlinear-Optical Analogies in Nuclear-like Soliton Reactions:Sel.c.ion Rules,Nonlinear Tunneling and Sub-Barrier Fusion–Fission
收藏 引用
chinese Physics letters 2024年 第8期41卷 1-7页
作者: T.l.Belyaeva V.N.Serkin Universidad Autonoma del Estado de Mexico Av.Instituto Literario 100C.P.50000TolucaMexico Benemerita Universidad Autonoma de Puebla Av.4 Sur 104C.P.72001PueblaMexico
The main goal of our study is to reveal unexpected but intriguing analogies arising between optical solitons and nuclear physics,which still remain hidden from *** consider the main cornerstones of the concept of nonl... 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
Global prevalence and gender inequalities in at least 60 min of self-reported moderate-to-vigorous physical activity 1 or more days per week:An analysis with 707,616 adolescents
收藏 引用
Journal of Sport and Health Science 2024年 第5期13卷 709-716页
作者: Raphael H.O.Araujo AndrúO.Werneck clarice l.Martins l.c.ana l.Barboza Rafael M.Tassitano Nicolas Aguilar-Farias Gilmar M.Jesus Robinson Ramírez-Véelez Riki Tesler Adewale l.Oyeyemi Ellen c.M.Silva Robert G.Weaver Mark S.Tremblay Javier Brazo-Sayavera Grégore I.Mielke Danilo R.P.Silva Graduation Program in Health Sciences Londrina State University(UEL)Londrina 86057-970Brazil center for Epidemiological Research in Nutrition and Health Department of NutritionSchool of Public HealthUniversidade de Sao Paulo(USP)Sao Paulo 01246-904Brazil Department of Physical Education Federal University of ParaıbaParaıba 58051-900Brazil Research centre of Physical Activity Health and LeisureFaculty of SportsLaboratory for Integrative and Translational Research in Population Health(ITR)University of PortoPorto 4500Portugal Postgraduate Program in Physical Education University of BrasıliaBrasılia 70910-900Brazil Department of Kinesiology and community Health University of Illinois at Urbana-ChampaignChampaignIL 61801-3841USA Department of Physical Education Sports and RecreationUniversidad de La FronteraTemuco 4680000Chile Department of Health State University of Feira de SantanaFeira de Santana 44036-900Brazil Navarrabiomed Hospital Universitario de Navarra(HUN)Navarra Institute for Health Research(IdiSNA)Universidad Publica de Navarra(UPNA)Pamplona 31006Spain Facultad de ciencias de la Educacion Unidad Central del Valle del Cauca(UCEVA)TuluaValle del Cauca 763022Colombia Health Management Department Faculty of Heath sciencesAriel UniversityAriel 40700Israel college of Health Solutions Arizona State UniversityPhoenixAZ 85004USA Arnold School of Publ.c.Health University of South CarolinaColumbiaSC 29208USA Healthy Active living and Obesity Research Group Children’s Hospital of Eastern Ontario Research InstituteOttawaON K1H 8L1Canada Department of Pediatrics University of OttawaOttawaON K1H 8L1Canada Department of Health Sciences Carleton UniversityOttawaON K1S 5B6Canada Department of Sports and computer Science Universidad Pablo de Olavide(UPO)Seville 41013Spain centro Universitario Regional Noreste Universidad de la RepublicaRivera 40000Uruguay School of Publ.c.Health The University of QueenslandBrisbaneQLD 4006Australia Department of Physical Education
Background:Guidelines recommend that adolescents should accumulate an average of 60 min per day of moderate-to-vigorous physical activity(MVPA).However,using only this cut-off could hide important *** instance,from a ... 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
cool white light and tunable multicolor emission from Tb^(3+)/Dy^(3+)co-activated glasses under different excitations for WlEDs
收藏 引用
Journal of Rare Earths 2024年 第1期42卷 46-56,I0002页
作者: l.Vijayalakshmi K.Naveen Kumar Jong Dae Baek Department of Automotive Engineering Yeungnam UniversityGyeongsanGyeongbuk38541Republic of Korea Department of Mechanical Engineering Yeungnam UniversityGyeongsan38541Republic of Korea
A set of co-doped(Tb^(3+)/Dy^(3+))lithium zinc borate(lZB)glasses were developed by melt *** structural evaluation was performed for synthesized glassy *** Dy^(3+)and Tb^(3+)individually doped glasses exhibit intense ... 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