咨询与建议

限定检索结果

文献类型

  • 2,226 篇 期刊文献
  • 21 篇 会议
  • 4 篇 学位论文
  • 3 册 图书

馆藏范围

  • 2,253 篇 电子文献
  • 1 种 纸本馆藏

日期分布

学科分类号

  • 1,150 篇 医学
    • 895 篇 临床医学
    • 62 篇 公共卫生与预防医...
    • 58 篇 中西医结合
    • 54 篇 基础医学(可授医学...
    • 43 篇 中药学(可授医学、...
    • 40 篇 药学(可授医学、理...
  • 609 篇 工学
    • 130 篇 材料科学与工程(可...
    • 101 篇 化学工程与技术
    • 54 篇 计算机科学与技术...
    • 42 篇 环境科学与工程(可...
    • 37 篇 机械工程
    • 36 篇 电子科学与技术(可...
    • 36 篇 水利工程
    • 31 篇 仪器科学与技术
    • 31 篇 生物工程
    • 29 篇 林业工程
    • 27 篇 农业工程
  • 362 篇 理学
    • 97 篇 生物学
    • 82 篇 化学
    • 54 篇 数学
    • 32 篇 生态学
    • 29 篇 物理学
    • 25 篇 地质学
  • 298 篇 农学
    • 75 篇 作物学
    • 60 篇 农业资源与环境
    • 41 篇 林学
    • 34 篇 兽医学
    • 29 篇 植物保护
  • 65 篇 管理学
    • 29 篇 管理科学与工程(可...
  • 45 篇 经济学
    • 44 篇 应用经济学
  • 29 篇 教育学
  • 24 篇 文学
  • 16 篇 法学
  • 10 篇 艺术学
  • 6 篇 哲学
  • 3 篇 历史学
  • 1 篇 军事学

主题

  • 32 篇 covid-19
  • 28 篇 diagnosis
  • 26 篇 health
  • 24 篇 水杨酸
  • 23 篇 cancer
  • 23 篇 of
  • 23 篇 brazil
  • 21 篇 obesity
  • 21 篇 nursing
  • 19 篇 liver
  • 18 篇 and
  • 18 篇 quality
  • 18 篇 disease
  • 17 篇 helicobacter pyl...
  • 16 篇 diabetes
  • 16 篇 gastric cancer
  • 16 篇 sars-cov-2
  • 14 篇 treatment
  • 14 篇 system
  • 13 篇 antioxidant

机构

  • 32 篇 instituto multid...
  • 30 篇 o paulo brazil
  • 16 篇 &atilde
  • 10 篇 华南理工大学
  • 10 篇 西北农林科技大学
  • 9 篇 浙江大学
  • 8 篇 department of nu...
  • 8 篇 中山大学
  • 8 篇 中国科学院沈阳应...
  • 8 篇 沈阳农业大学
  • 8 篇 贵州大学
  • 7 篇 复旦大学
  • 7 篇 甘肃农业大学
  • 7 篇 福建农林大学
  • 7 篇 brazil
  • 6 篇 内蒙古民族大学
  • 6 篇 吉林大学
  • 6 篇 苏州大学
  • 6 篇 o paulo s&#227
  • 6 篇 department of bi...

作者

  • 47 篇 fabrício freire ...
  • 21 篇 hanna santos mar...
  • 21 篇 breno bittencour...
  • 18 篇 maria luísa cord...
  • 17 篇 márcio vasconcel...
  • 15 篇 alberto krayyem ...
  • 14 篇 filipe antônio f...
  • 14 篇 fabian fellipe b...
  • 13 篇 samuel luca roch...
  • 13 篇 cláudio lima sou...
  • 12 篇 marcel silva luz
  • 11 篇 david lee nelson
  • 11 篇 kádima nayara te...
  • 10 篇 marcos l.s.olive...
  • 10 篇 ronaldo teixeira...
  • 8 篇 jonathan santos ...
  • 8 篇 diogo turiani ho...
  • 8 篇 vinicius de souz...
  • 8 篇 glauber rocha li...
  • 8 篇 cristiane valle ...

语言

  • 1,636 篇 英文
  • 618 篇 中文
检索条件"作者=Leonnan de sa.oliveira"
2254 条 记 录,以下是71-80 订阅
排序:
Recovery of polyphenols from camu-camu(Myrciaria dubia ***)depulping residue by cloud point extraction
收藏 引用
Chinese Journal of Chemical Engineering 2018年 第12期26卷 2471-2476页
作者: Carlos Eduardo de Araujo Padilha Juliana Chris Silva de Azevedo Francisco Caninde de Sousa Junior Sergio Dantas de oliveira Junior Domingos Fabiano de santana Souza Jackson Araujo de oliveira Gorete Ribeiro de Macedo Everaldo Silvino dos santos Laboratory of Biochemical Engineering Chemical Engineering department Federal University of Rio Grande do Notre(UFRN)NatalRNBrazil Laboratory of Food Bioactive Compounds and Dairy Technology Chemical Engineering DepartmentFederal University of Rio Grande do Notre(UFRN)NatalRNBrazil
In this study the potential of cloud point extraction formed by a non-ionic surfactant was used in order to separate polyphenols from industrial residues of camu-camu. The effects of operational conditions of the clou... 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
Herbivore performance and plant defense after sequential attacks by inducing and suppressing herbivores
收藏 引用
Insect Science 2019年 第1期26卷 108-118页
作者: Elisa Faria de oliveira Angelo Pallini Arne Janssen department of Entomology Federal University of VicosaVicosaMGBrazil department of Entomology Federal University of Lavras LavrasMGBrazil Section Population Biology Institute for Biodiversity and Ecosystem DynamicsUniversity of Amsterdam Amsterdamthe Netherlands
It is well known that herbivore-induced plant defenses alter host plant quality and can affect the behavior and performance of later arriving *** of sequential attacks by herbivores that either suppress or induce plan... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Evolution of the 3.65-2.58 Ga Mairi Gneiss Complex,Brazil:Implications for growth of the continental crust in the São Francisco Craton
收藏 引用
Geoscience Frontiers 2022年 第5期13卷 110-128页
作者: Igor de Camargo Moreira Elson Paiva oliveira Daniel Francisco Martins de Sousa Institute of Geosciences University of Campinas(UNICAMP)CampinasSPBrazil
The composition and formation of the Earth’s primitive continental crust and mantle differentiation are key issues to understand and reconstruct the geodynamic terrestrial evolution,especially during the ***,the scar... 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
Artificial equilibrium points and bi-impulsive maneuvers to observe 243 Ida
收藏 引用
Chinese Journal of Aeronautics 2021年 第1期34卷 410-423页
作者: Allan Kardec de ALMEIDA Jr Geraldo Magela Couto oliveira Antonio Fernando Bertachini de Almeida PRADO National Institute for Space Research(INPE) Sao Jose dos Campos 12227-010Brazil Federal Center for Technological Education of Minas Gerais(CEFET-MG) Belo Horizonte 30421-169Brazil
In the restricted three-body problem,the traditional Lagrange points L1 and L2 are the only equilibrium points near the asteroid 243 *** thrust generated by a solar sail over a spacecraft enables the existence of new ... 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
Monkeypox:A looming concern for children?
收藏 引用
Asian Pacific Journal of Tropical Medicine 2022年 第8期15卷 335-336页
作者: Claudio Bruno Silva de oliveira Joelma Maria de Araújo Andrade Jonas Ivan Nobre oliveira Pediatric Hospital Maria Alice Fernandes NatalRio Grande do NorteBrazil Blood Center Dalton Cunha NatalRio Grande do NorteBrazil Federal University of Rio Grande do Norte Department of Biophysics and PharmacologyNatalRio Grande do NorteBrazil
Several countries around the world have followed the growing number of monkeypox(MPX) cases with concern, as they are still very sensitive to fears of a new tragic pandemic, as was the case with COVID-19. This alarm h... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Duration and intensity of rainfall events with the same erosivity change sediment yield and runoff rates
收藏 引用
International Soil and Water Conservation Research 2021年 第1期9卷 69-75页
作者: Wilk sampaio de Almeida Steffen Seitz Luiz Fernando Coutinho de oliveira Daniel Fonseca de Carvalho Agronomy department Federal Institute of EducationScience and Technology of RondôniaCampus AriquemesRO 257km 13AriquemesRO76870-000Brazil department of Geosciences University of TübingenTübingenGermany Federal University of Lavras Department of Water Resources and Sanitation37200-000LavrasMGBrazil Federal Rural University of Rio de Janeiro Engineering DepartmentBR 465km 723897-000SeropédicaRJBrazil
The effect of different rainfall patterns on surface runoff,infiltration and thus soil losses and sediment concentrations are still in the focus of current *** most simulated rainfall experiments,pre-cipitation is app... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Risk factors, surgical complications and graft survival in liver transplant recipients with early allograft dysfunction
收藏 引用
Hepatobiliary & Pancreatic Diseases International 2019年 第5期18卷 423-429页
作者: Douglas Bastos-Neves Paolo Rogerio de oliveira salvalaggio Marcio Dias de Almeida Digestive and Hepatobiliary Surgery Hospital Sao Vicente de PauloRio de JaneiroBrazil Liver Transplant Unit Hospital Israelita Albert EinsteinSao PauloBrazil
Background: Early allograft dysfunction (EAD) is a severe complication after liver transplantation. The associated risk factors and complications have re-gained recent interest. This study investigated risk factors, s... 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
Light intensity and hydrogel soil amendment differentially affect growth and photosynthesis of successional tree species
收藏 引用
Journal of Forestry Research 2023年 第1期34卷 257-268页
作者: Léo Vieira Leonel Fabrício de oliveira Reis Fábio Afonso Mazzei Moura de Assis Figueiredo Tiago Massi Ferraz Sebastiao de oliveira Maia Júnior Patrick Costa Silva Jailma Ribeiro de Andrade Graduate Program in Agroecology State University of MaranhaoAv.Lourenco Vieira da Silva1000Jardim Sao CristovaoSao LuísMaranhao 65055-310Brazil State University of Maranhao Av.Lourenco Vieira da Silva1000Jardim Sao CristovaoSao LuísMaranhao 65055-310Brazil Graduate Program in Agriculture and Environment State University of MaranhaoPraca Goncalves Diass/nCentroBalsasMaranhao 65800-000Brazil
Global climate changes have increased temperatures,radiation indexes,and consequently,irregularities in rainfall in mainly tropical countries,considerably hindering plant establishment in recovering degraded *** objec... 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
Pulse Waveform Analysis as A Bridge between Pulse Examination in Chinese Medicine and Cardiology
收藏 引用
Chinese Journal of Integrative Medicine 2013年 第4期19卷 307-314页
作者: Arthur de sa Ferreira Agnaldo Jose Lopes Postgraduation Program of Rehabilitation Science Augusto Motta University CenterRio de JaneiroRJBrazil department of Physical Therapy Salgado de Oliveira UniversityNiteroiRJBrazil Laboratory of Respiratory Physiology University of the State of Rio de JaneiroRio de JaneiroRJBrazil
Pulse examination was probably the earliest attempt to distinguish between health and illnesses. Starting at the pre-Hippocratic era, Chinese medicine practitioners developed techniques for pulse examination and defin... 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
Evaluation of physicochemical properties as supporting information on quality control of raw materials and veterinary pharmaceutical formulations
收藏 引用
Journal of Pharmaceutical Analysis 2018年 第3期8卷 168-175页
作者: sara da Silva Anacleto Marcella Matos Cordeiro Borges Hanna Leijoto de oliveira Andressa Reis Vicente Eduardo Costa de Figueiredo Marcone Augusto Leal de oliveira Barbara Juliana Pinheiro Borges Marcelo Antonio de oliveira Warley de Souza Borges Keyller Bastos Borges departamento de Ciencias Naturals Universidade Federal de Sao Joao del-Rei Campus Dom Bosco Praca Dora Helvecio 74 Fabricas 36301-160 Sao Joao del-Rei Minas Gerais Brazil departamento de Quimica Universidade Federal do Espirito Santo Avenida Fernando Ferrari 514 Goiabeiras 29075-910 Vitdria Espirito Santo Brazil Laboratorio de Analise de Toxicantes e Farmacos Faculdade de Ciencias Farmaceuticas Universidade Federal de Alfenas Rua Gabriel Monteiro da Silva 700 Centro 37130-000 Alfenas Minas Gerais Brazil departamento de Quimica Universidade Federal de Juiz de Fora Rua Jose Lourenco Kelmer s/n 36036-330 Juiz de Fora Minas Gerais Brazil Centro de Ciencias da saude Universidade Federal do Espirito Santo Avenida Marechal Campos 1468 Maruipe 29.043-900 Vitori Espirito Santo Brazil Centro Universitario Norte do Espirito santo Universidade Federal do Espirito Santo Br 101 Norte Km 67 Sao Mateus Espirito Santo Brazil
This study aimed to show that the physicochemical proprieties obtained by Fourier transform infrared spectroscopy (FTIR), thermogravimetry (TG), and scanning electronic microscopy (SEM) can be useful tools for e... 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