咨询与建议

限定检索结果

文献类型

  • 844 篇 期刊文献
  • 32 篇 会议
  • 15 册 图书
  • 4 篇 学位论文

馆藏范围

  • 894 篇 电子文献
  • 1 种 纸本馆藏

日期分布

学科分类号

  • 433 篇 医学
    • 374 篇 临床医学
    • 71 篇 基础医学(可授医学...
    • 45 篇 公共卫生与预防医...
    • 31 篇 药学(可授医学、理...
    • 19 篇 中西医结合
  • 312 篇 工学
    • 73 篇 材料科学与工程(可...
    • 69 篇 环境科学与工程(可...
    • 63 篇 化学工程与技术
    • 37 篇 计算机科学与技术...
    • 31 篇 生物工程
    • 29 篇 电子科学与技术(可...
    • 27 篇 电气工程
    • 24 篇 生物医学工程(可授...
    • 19 篇 水利工程
    • 19 篇 地质资源与地质工...
  • 311 篇 理学
    • 140 篇 生物学
    • 77 篇 化学
    • 47 篇 物理学
    • 39 篇 数学
    • 39 篇 生态学
    • 32 篇 地球物理学
    • 26 篇 地质学
    • 22 篇 天文学
    • 18 篇 大气科学
  • 135 篇 农学
    • 63 篇 作物学
    • 32 篇 畜牧学
    • 30 篇 园艺学
    • 29 篇 兽医学
    • 22 篇 农业资源与环境
  • 42 篇 管理学
    • 20 篇 管理科学与工程(可...
  • 20 篇 教育学
  • 18 篇 法学
  • 17 篇 经济学
  • 11 篇 文学
  • 7 篇 艺术学
  • 5 篇 哲学
  • 3 篇 历史学

主题

  • 12 篇 cancer
  • 10 篇 water
  • 8 篇 analysis
  • 7 篇 of
  • 7 篇 inflammation
  • 6 篇 diabetes
  • 6 篇 treatment
  • 6 篇 治疗
  • 5 篇 prevalence
  • 5 篇 maize
  • 5 篇 adsorption
  • 5 篇 management
  • 5 篇 syndrome
  • 5 篇 obesity
  • 5 篇 surgery
  • 5 篇 soil
  • 5 篇 covid-19
  • 5 篇 研究人员
  • 5 篇 disease
  • 4 篇 case report

机构

  • 5 篇 美国加州大学
  • 5 篇 北京大学
  • 4 篇 辽宁石油化工大学
  • 4 篇 香港大学
  • 4 篇 中国石油大学
  • 3 篇 香港理工大学
  • 3 篇 斯坦福大学
  • 3 篇 同济大学
  • 3 篇 center of excell...
  • 3 篇 北京航空技术研究...
  • 3 篇 school of scienc...
  • 3 篇 中国科学院古脊椎...
  • 3 篇 biological techn...
  • 3 篇 加利福尼亚大学
  • 3 篇 unit of oncologi...
  • 3 篇 中山医科大学
  • 2 篇 institut d’econo...
  • 2 篇 unit of mineral ...
  • 2 篇 清华大学第一附属...
  • 2 篇 亚琛工业大学

作者

  • 5 篇 daniel cherqui
  • 5 篇 daniel tony eyen...
  • 4 篇 杨双春
  • 4 篇 daniel l.gebo
  • 4 篇 daniel
  • 4 篇 riccardo inching...
  • 4 篇 j.l.simmons
  • 4 篇 gaël honal mahou...
  • 4 篇 kantoma daniel b...
  • 4 篇 fabrizio di bene...
  • 4 篇 richard loumingo...
  • 3 篇 daniel j.hellenb...
  • 3 篇 francesca ratti
  • 3 篇 孟津
  • 3 篇 张娜
  • 3 篇 alfredo vizzini
  • 3 篇 廖广志
  • 3 篇 luca antonio ald...
  • 3 篇 riccardo memeo
  • 3 篇 leon daniel van ...

语言

  • 695 篇 英文
  • 199 篇 中文
  • 1 篇 其他
检索条件"作者=Daniel L.SIMMONS"
895 条 记 录,以下是71-80 订阅
排序:
Application of DNA barcodes in Hedyotis l.(Spermacoceae,Rubiaceae)
收藏 引用
Journal of Systematics and Evolution 2011年 第3期49卷 203-212页
作者: Mark P.simmons Paul Pui-Hay BUT Pang-Chui SHAW Department of Biology Colorado State University School of life Sciences The Chinese University of Hong Kong
The potential application of DNA barcodes of plastid(matK,trnH-psbA,petD,and rbcl) and nuclear(internal transcribed spacer(ITS) of rDNA) DNA regions was investigated for 25 Hedyotis *** ITS showed the best species dis... 详细信息
来源: 同方期刊数据库 同方期刊数据库 评论
Corneal epithelial defects following vitreoretinal surgery:incidence and outcomes from the DISCOVER study
收藏 引用
International Journal of Ophthalmology(English edition) 2022年 第1期15卷 83-88页
作者: Kubra Sarici daniel Petkovsek Alison Martin Alex Yuan Jeffrey M.Goshe Sunil K.Srivastava Jamie l.Reese Justis P.Ehlers The Tony and leona Campane Center for Excellence in Image-Guided Surgery and Advanced Imaging Research Cole Eye InstituteCleveland ClinicClevelandOH 44195USA Vitreoretinal Service Cole Eye InstituteCleveland ClinicClevelandOH 44195USA Cornea Service Cole Eye InstituteCleveland ClinicClevelandOH 44195USA
AIM:To investigate the incidence,risk factors,clinical course,and outcomes of corneal epithelial defects(CED)following vitreoretinal surgery in a prospective study ***:This was a post-hoc analysis of all participants ... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Knowledge of radiation exposure associated with common trauma imaging modalities among orthopaedic surgeons,emergency medicine physicians,and general surgeons in the United States
收藏 引用
World Journal of Emergency Medicine 2023年 第4期14卷 294-301页
作者: Fady Y.Hijji Andrew D.Schneider Matthew D.Thomas Joseph G.lyons daniel D.Bohl Jennifer l.Jerele Michael J.Prayson Department of Orthopaedic Surgery Wright State University Boonshoft School of MedicineDayton OH 45409USA Department of Orthopaedic Surgery Rush University Medical CenterChicago IL 60612USA
BACKGROUND:Few contemporary studies have assessed physicians’knowledge of radiation exposure associated with common imaging studies,especially in trauma *** purpose of this study was to assess the knowledge of physic... 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
Smoking and prostate cancer survival and recurrence
收藏 引用
Asian Journal of Andrology 2011年 第6期13卷 787-788页
作者: Roberto l Muller daniel M Moreira Division of Urologic Surgery Department of Surgery and the Duke Prostate Center Duke University School of Medicine Durham NC 27710 USA Urology Section Veterans Affairs Medical Center Durham NC 27705 USA The Arthur Smith Institute for Urology North Shore Long Island Jewish Health System New Hyde Park NY USA
moking is associated with several major benign and malignant diseases, representing one of the most important modifiable risk factors. Among urothelial neoplasms, smoking is pivotal in tumor carcinogenesis, but its r... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Quiet in the nest:The nest environment attenuates song in a grassland songbird
收藏 引用
Avian Research 2023年 第4期14卷 623-629页
作者: Sarah l.Dobney Mikayla M.K.Bornais D.Ryan Norris Amy E.M.Newman Heather Williams Stéphanie M.Doucet daniel J.Mennill Department of Integrative Biology University of WindsorWindsorOntarioN9B 3P4Canada Department of Integrative Biology University of GuelphGuelphOntarioN1G 2W1Canada Biology Department Williams CollegeWilliamstownMA01267USA
The nest environment may limit the ability of nest-bound birds to hear sounds from the outside *** vocal learning species,such as humans and songbirds,it is vital for young animals to hear the voices of conspecific an... 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
Role of seed size, phenology, oogenesis and host distribution in the specificity and genetic structure of seed weevils (Curculio spp.) in mixed forests
收藏 引用
Integrative Zoology 2018年 第3期13卷 267-279页
作者: Harold ARIAS-lEClAIRE Raúl BONAl daniel GARCÍA-lÓPEZ Josep Maria ESPElTA CREAF Centre for Ecological Research and Forestry ApplicationsCerdanyola del Vallès08193Spain Exact and Natural Sciences School State Distance University of Costa RicaUNEDMercedes de Montes de OcaSan JoséCosta Rica Forest Research Group INDEHESAUniversity of ExtremaduraPlasenciaSpain DITEG Research Group University of Castilla-La ManchaToledoSpain Zoology Department Autonomous University of BarcelonaCerdanyola del VallèsSpain
Synchrony between seed growth and oogenesis is suggested to largely shape trophic breadth of seed-feeding insects and ultimately to contribute to their co-existence by means of resource partitioning or in the time whe... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Identification of KASP markers and putative genes for pre-harvest sprouting resistance in common wheat(Triticum aestivum l.)
收藏 引用
The Crop Journal 2023年 第2期11卷 549-557页
作者: Guannan liu daniel Mullan Aimin Zhang Hui liu Dongcheng liu Guijun Yan UWA School of Agriculture and Environment and The UWA Institute of AgricultureThe University of Western AustraliaPerthWA 6009Australia InterGrain Pty.ltd. 19 Ambitious Link Bibra LakeWA 6163Australia State Key laboratory of North China Crop Improvement and Regulation College of AgronomyHebei Agriculture UniversityBaoding 071000HebeiChina
Common wheat(Triticum aestivum l.)is the most important crop in the world and a typical allopolyploid with a large and complex ***-harvest sprouting(PHS)leads to a significant reduction in grain quality *** is a compl... 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
Taxonomy of Pseudolagarobasidium(Polyporales,Basidiomycota)
收藏 引用
Fungal Diversity 2012年 第4期55卷 155-169页
作者: Karen K.Nakasone daniel l.lindner Center for Forest Mycology Research Northern Research StationU.S.Forest ServiceOne Gifford Pinchot DriveMadisonWI 53726-2398USA
Pseudolagarobasidium(Polyporales,Basidiomycota)is a small,monophyletic genus of crustose,wood-inhabiting fungi with spines and a saprobic,endophytic,or parasitic *** species are accepted in the genus including two new... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Effects of Carbon Content and Solidification Rate on the Thermal Conductivity of Grey Cast Iron
收藏 引用
Tsinghua Science and Technology 2008年 第2期13卷 170-176页
作者: daniel Holmgren Attila Diószegi Ingvar l. Svensson Department of Mechanical Engineering and Component Technology Jnkping University
The thermal conductivity/diffusivity of pearlitic grey irons with various carbon contents was investigated by the laser flash method. The materials were cast in controlled thermal environments producing three dissimil... 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
Could diffuse coevolution explain the generic eggshell color of the brown-headed cowbird?
收藏 引用
Current Zoology 2021年 第6期67卷 645-652页
作者: daniel HANlEY Beheshteh MOGHADDAME-JAFARI Samantha l.RUTlEDGE Department of Biology George Mason UniversityFairfaxVA 22030USA Department of Biology Mansfield University of PennsylvaniaMansfieldPA 16933USA Museum of Natural Science and Department of Biological Sciences Louisiana State UniversityBaton RougeLA 70803USA
The brown-headed cowbird(hereafter cowbird)is an avian brood parasite that produces an egg dissimilar to those produced by the majority of its diverse host *** cowbird’s generic egg may result from a Jack-of-all-trad... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论