咨询与建议

限定检索结果

文献类型

  • 93,314 篇 期刊文献
  • 5,535 篇 会议
  • 4,005 册 图书
  • 146 篇 学位论文
  • 16 篇 报纸
  • 2 篇 多媒体

馆藏范围

  • 101,287 篇 电子文献
  • 1,815 种 纸本馆藏

日期分布

学科分类号

  • 36,515 篇 工学
    • 7,540 篇 材料科学与工程(可...
    • 4,251 篇 化学工程与技术
    • 3,832 篇 生物医学工程(可授...
    • 2,670 篇 电子科学与技术(可...
    • 2,501 篇 机械工程
    • 1,987 篇 计算机科学与技术...
    • 1,899 篇 动力工程及工程热...
    • 1,724 篇 地质资源与地质工...
    • 1,440 篇 仪器科学与技术
    • 1,393 篇 电气工程
    • 1,341 篇 力学(可授工学、理...
    • 1,326 篇 水利工程
    • 1,283 篇 环境科学与工程(可...
  • 35,215 篇 医学
    • 29,159 篇 临床医学
    • 4,153 篇 医学技术(可授医学...
    • 2,932 篇 基础医学(可授医学...
    • 2,552 篇 中西医结合
    • 2,032 篇 公共卫生与预防医...
    • 1,544 篇 药学(可授医学、理...
  • 18,245 篇 理学
    • 3,353 篇 物理学
    • 3,246 篇 化学
    • 2,973 篇 数学
    • 2,586 篇 生物学
    • 1,927 篇 地质学
  • 8,438 篇 农学
    • 2,004 篇 作物学
    • 1,812 篇 畜牧学
    • 1,473 篇 农业资源与环境
  • 3,562 篇 管理学
    • 1,569 篇 管理科学与工程(可...
  • 2,462 篇 经济学
    • 2,170 篇 应用经济学
  • 1,957 篇 教育学
    • 1,387 篇 教育学
  • 1,363 篇 法学
  • 1,332 篇 文学
  • 523 篇 历史学
  • 507 篇 艺术学
  • 478 篇 哲学
  • 160 篇 军事学

主题

  • 993 篇 ct
  • 853 篇 mri
  • 598 篇 美国
  • 539 篇 病人
  • 512 篇 患者
  • 475 篇 of
  • 469 篇 and
  • 439 篇 mr
  • 373 篇 cancer
  • 253 篇 北美洲
  • 232 篇 治疗
  • 229 篇 analysis
  • 200 篇 美利坚合众国
  • 195 篇 covid-19
  • 173 篇 disease
  • 167 篇 water
  • 159 篇 microstructure
  • 155 篇 诊断
  • 155 篇 energy
  • 154 篇 儿童

机构

  • 178 篇 北京大学
  • 143 篇 同济医科大学附属...
  • 117 篇 中国科学院大学
  • 109 篇 清华大学
  • 86 篇 浙江大学
  • 71 篇 华中科技大学同济...
  • 70 篇 华中科技大学
  • 68 篇 美国加州大学
  • 68 篇 university of mi...
  • 67 篇 institute for pa...
  • 67 篇 albert einstein ...
  • 66 篇 dipartimento di ...
  • 66 篇 nikhef p.o.box 4...
  • 66 篇 fysikum stockhol...
  • 64 篇 香港理工大学
  • 63 篇 michigan state u...
  • 61 篇 中国地质大学
  • 57 篇 南京大学
  • 52 篇 南京农业大学
  • 47 篇 germany

作者

  • 241 篇 叶鹏
  • 234 篇 m.k
  • 135 篇 郭战宏
  • 115 篇 郭俊
  • 115 篇 刘莉
  • 85 篇 f.krauss
  • 85 篇 g.weiglein
  • 85 篇 h.murayama
  • 84 篇 j.parsons
  • 84 篇 j.d.jackson
  • 82 篇 g.d'ambrosio
  • 80 篇 r.s.chivukula
  • 74 篇 唐光健
  • 68 篇 y.kwon
  • 64 篇 李开
  • 56 篇 王亭忠
  • 53 篇 刘凯
  • 44 篇 余英豪
  • 41 篇 s.blusk
  • 41 篇 linda m.chung

语言

  • 61,072 篇 中文
  • 41,924 篇 英文
  • 2 篇 法文
  • 2 篇 日文
检索条件"作者=Flávia O.M.S.Abreu"
103018 条 记 录,以下是1-10 订阅
排序:
Chitosan and Carboxymethylchitosan as High Turbidity Water Biocoagulants
收藏 引用
Journal of Renewable materials 2020年 第11期8卷 1489-1504页
作者: Raimundo N.Lima Júnior João L.I.o.Almeida Jones de Andrade flávia o.m.s.abreu Natural sciences Program State University of Ceará-UECEFortalezaCE 60714-903Brazil Physical-Chemistry Department Institute of ChemistryFederal University of Rio Grande do Sul-UFRGSPorto AlegreRS 91501-970Brazil
Biocoagulants emerges as a promising technology in water treatment,in order to exploit renewable and biodegradable *** present work aims to study the coagulant action of chitosan and carboxymethylchitosan on water wit... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
An illustrated checklist of macrofaunal molluscs from soft-sediments of the Abrolhos Parcel(northeastern,Brazil)with 15 new records
收藏 引用
Journal of oceanology and Limnology 2021年 第2期39卷 671-682页
作者: flávia maria Pereira da CosTA Ana maria setubal PIREs-VANIN Departamento de oceanografi a Biológica Instituto Oceanográfi coUniversidade de São PauloSão Paulo 05508-120Brazil
Comprehensive understanding of marine biodiversity is essential for conservation,especially for vulnerable *** this paper,we implemented and illustrated a checklist of molluscs from the Abrolhos Parcel,Brazil,the most... 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
Efficacy assessment of peracetic acid in the removal of synthetic 17α-ethinyl estradiol contraceptive hormone in wastewater
收藏 引用
Journal of Environmental sciences 2020年 第3期32卷 1-8页
作者: Rita maurício flávia semedo Rita Dias Joao P.Noronha Leonor Amaral michiel A.Daam Antonio P.mano mário s.Diniz CENsE Center for Environmental and Sustainability ResearchNOVA School of Science and TechnologyNOVA University LisbonQuinta da Torre2829-516 CaparicaPortugal Department of Environmental sciences and Engineering NOVA School of Science and TechnologyNOVA University LisbonQuinta da Torre2829-516 CaparicaPortugal REQUImTE/FCT NOVA School of Science and TechnologyNOVA University LisbonQuinta da Torre2829-516 CaparicaPortugal Biotox Lab UCIBIODepartment of ChemistryNOVA School of Science and TechnologyNOVA University LisbonQuinta da Torre2829-516 CaparicaPortugal
Increasing concerns have been raised on endocrine disrupting chemicals like the sex hormone 17 a-ethinylestradiol(EE2),the more since traditional wastewater(WW) treatments appear to be ineffective for their *** effica... 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
Impact of Zika virus non-structural protein mutations on hippocampal damage
收藏 引用
Neural Regeneration Research 2025年 第8期20卷 2307-2308页
作者: Larissa m.G.Cassiano Roney s.Coimbra Neurogenômica/Imunopatologia Instituto RenéRachouFiocruzBelo HorizonteBrazil Departamento de Bioquímica e Imunologia Instituto de Ciências BiológicasUniversidade Federal de Minas GeraisBelo HorizonteBrazil
The Zika virus(ZIKV),a member of the flaviviridae family,attracted worldwide attention for its connection to severe neurological effects,notably microcephaly in newborns,first reported during the 2015 epidemic in ***,... 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
Thermal and photoperiodic requirements of the seedling stage of three tropical forest species
收藏 引用
Journal of Forestry Research 2023年 第1期34卷 209-220页
作者: Fabrina Bolzan martins mábele de Cássia Ferreira flávia Fernanda Azevedo Fagundes Gabriel Wilson Lorena florêncio Natural Resource Institute Federal University of ItajubáItajubáMinas Gerais 37500-903Brazil
Air temperature and photoperiod play an important role in the seedling development for tropical forest *** variables are sensitive to climate,and so evaluating thermal and photoperiodic effects on seedling development... 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
Improving wood volume predictions in dry tropical forest in the semi-arid Brazil
收藏 引用
Journal of Arid Land 2020年 第6期12卷 1046-1055页
作者: Robson B de LImA Patrícia A B BARRETo-GARCIA Alessandro de PAULA Jhuly E s PEREIRA flávia F de CARVALHo silvio H m GomEs Department of Forest Engineering State University of AmapáMacapá68900070Brazil Department of Forest science State University of Southwest BahiaVitória da Conquista 45083900Brazil Universidade Federal de Lavras Lavras 37200900Brazil Universidade de são Paulo Piracicaba 13418900Brazil
The volumetric variability of dry tropical forests in Brazil and the scarcity of studies on the subject show the need for the development of techniques that make it possible to obtain adequate and accurate wood volume... 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
Brain-derived neurotrophic factor signaling in the neuromuscular junction during developmental axonal competition and synapse elimination
收藏 引用
Neural Regeneration Research 2025年 第2期20卷 394-401页
作者: Josep Tomàs Víctor Cilleros-mañé Laia Just-Borràs marta Balanyà-segura Aleksandra Polishchuk Laura Nadal marta Tomàs Carolina silvera-simón manel m.santafé maria A.Lanuza Unitat d’Histologia i Neurobiologia(UHNeurob) Facultat de Medicina i Ciències de la SalutUniversitat Rovira i VirgiliReusSpain
During the development of the nervous system,there is an overproduction of neurons and *** competition between neighboring nerve endings and synapses performing different activity levels leads to their elimination or ... 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
Upregulation of the APE1 and H2AX genes and miRNAs involved in DNA damage response and repair in gastric cancer
收藏 引用
Genes & Diseases 2019年 第2期6卷 176-184页
作者: Fernanda s.manoel-Caetano Ana flávia T.Rossi Gabriela Calvet de morais Fábio Eduardo severino Ana Elizabete silva Department of Biology UNESPSāo Paulo State UniversityCampus of Sāo Josédo Rio PretoRua Cristòvāo Colombo226515.054-000Sāo Josédo Rio PretoSāo PauloBrazil Department of surgery and orthopedics Faculty of MedicineUNESPSāo Paulo State UniversityCampus of BotucatuAv.Prof.Mário Rubens Guimarāes Montenegros/n18.618-687BotucatuSāo PauloBrazil
Gastric cancer remains one of the leading causes of cancer-related death worldwide,and most of the cases are associated with Helicobacter pylori *** bacterium promotes the production of reactive oxygen species(Ros),wh... 详细信息
来源: 维普期刊数据库 维普期刊数据库 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
Isomeric pair 95m,g Nb in the photonuclear reactions on natmo at the bremsstrahlung end-point energy of 38–93 meV
收藏 引用
Chinese Physics C 2023年 第12期47卷 64-72页
作者: I.s.Timchenko o.s.Deiev s.m.olejnik s.m.Potin V.A.Kushnir V.V.mytrochenko s.A.Perezhogin V.A.Bocharov Institute of Physics Slovak Academy of SciencesSK-84511 BratislavaSlovakia National science Center"Kharkov Institute of Physics and Technology" 1Akademichna St.61108KharkivUkraine CNRs/IJCLAB 15 Rue Georges Clemenceau Str.Orsay91400France
The ^(nat)mo(γ,xnp)^(95m,g)Nb photonuclear reaction was studied using the electron beam from the NsC KIPT linear accelerator *** experiment was performed using the activation and off-line γ-ray spectrometric *** exp... 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