检索结果-南通市图书馆

Sociodemographic,biological,and psychosocial correlates of light-and moderate-to-vigorous-intensity physical activity during school time,recesses,and physical education classes

引用

Journal of Sport and Health Science 2019年第2期8卷 177-182页

作者： Bruno G.G.da Costa Kelly S.da silva Jaqueline A.da silva Giseli Minatto luiz R.A.de Lima Edio L.Petroski Research Centre in Physical Activity and Health Federal University of Santa Catarina Department of Physical Education Federal University of Santa Catarina Research Centre in Kineanthropometry and Human Development Federal University of Santa Catarina

Background: Identifying factors associated with physical activity(PA) is useful in planning interventions and policies. The aim of this study was to identify sociodemographic, biological, and psychosocial factors associated with PA performed in school ***: Data collected for the present study included gender, age, socioeconomic status, body fat percentage, aerobic fitness, self-efficacy, attitudes,peer and parental support, and perception of school environment. Dependent variables were light-intensity PA(LPA) and moderate-to-vigorousintensity PA(MVPA) performed during school time, recesses, and physical education(PE) classes. Multiple regression analyses were ***: Participating adolescents(n = 567, 53% female, 12.9 ± 5.3 years) spent 5% of school time in MVPA and 27% in LPA, 15% of recesses in MVPA and 44% in LPA, and 16% of PE classes in MVPA and 41% in LPA. Boys engaged in more MVPA in all categories. Age was inversely related with MVPA and LPA in all periods, whereas body fat percentage was inversely related with MVPA in school time and PE classes. Attitude was inversely related with MVPA in all periods and with LPA in recesses. Considering PA to be good and enjoyable was positively associated with MVPA in school ***: Adolescents spent little time in PA during school. Future interventions should implement enjoyable activities at school.

关键词： Accelerometer Adolescents Attitude Physical education Public health Self-efficacy

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Ergatoid reproductives in the Neotropical termite Nasutitermes aquilinus (Holmgren) (Blattaria: Isoptera: Termitidae): developmental origin, fecundity, and genetics

引用

Insect Science 2020年第6期27卷 1322-1333页

作者： Iago Bueno da silva Ives Haifig Edward LVargo Fabiana Elaine Casarin Marcelo luiz da Mota Juliana Toledo Lima Ana Maria Costa-Leonardo Laboratorio de Cupins Departamento de BiologiaInstituto de BiocienciasUniversidade Estadual Paulista-UN ESPRio ClaroSPBrazil Centro de Ciencias Naturais e Humanas Universidade Federal do ABCSao Bernardo do CampoSPBrazil Department of Entomology Texas A&M UniversityCollege StationTexasUSA Departamento de Ciencias Biologicas Universidade Federal de Sao Paulo-UNIFESPDiademaSPBrazil Instituto de Ciencias Agrarias Universidade Federal de Uberlandia—UFUMonte CarmeloMGBrazil Centro de Estudos em Recursos Naturais Universidade Estadual de Mato Grosso do SulDouradosMSBrazil

Termite colonies are usully headed by primary reproductives,which estab-listh nests during the swar ming ***,secondary reproductives may develop in some specics and become supplementary or replacement breeders,extending colony *** we investigate the developmental origin,fecundity and genetic characterizaion of ergatoid reproductives in the Neotropical termite Nasuitermes aquilinus(Holmgren),using morphometrical and histological techniques,five micosiallitle loci and the COI mitochondrial *** measurements performed on 208 apterous individuals of Nuauidius revealed 10 groups,including ergatoid females,which developed from major workers through two successive *** were characterized by the presence of imaginal features such as eyes andl wing *** difentiation of these features was correlated to physogastric development in these ergatoids,Histology revealed ooeytes in all matu-ration sages in worker-derived reproductives of N aquidinus,presence of nonflagellate spermatozoa inside the spermatheea,and royal fa ***,ergatoid reproduwetives were reproductively *** to the genotypes of 221 individuals from 11 nests,and mitochondrial haplotypes of 43 ergatoids,73%of the colomies were simple families,whereas 27%were extendbed *** the oecurenee of related reproductives,low inbreeding rates were detected within and among *** values could be explained given that sib mating itself cannot result in a higher inbreeding rate but depend on several factors discussed in *** is the first study to investigate the genetic structure of termite colonies influenced by the development of ergatoids and further investigations are encouraged 10 understand the inflwence of these reproductives on colony lifespan.

关键词： breeding syslem caste ifrentiation COI genotyping micosallites reproduction

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Calibration and validation of FAO-AquaCrop model to estimate the total biomass and yacon root yield

引用

International Journal of Agricultural and Biological Engineering 2020年第3期13卷 123-128页

作者： Ramon Amaro de Sales Alexandre Cândido Xavier Evandro Chaves de Oliveira Fábio luiz de Oliveira Diego Mathias Natal da silva Sávio da silva Berilli Departament of Plant Science Federal University of ViçosaMinas GeraisBrazil Center of Agrarian Sciences and Engineering Federal University of Espirito SantoEspírito SantoBrazil Federal Institute of Education Science and Technology of Espírito Santo-Campus ItapinaEspírito SantoBrazil Federal Institute of Education Science and Technology of Southeast Minas Gerais-Campus ManhuaçuMinas GeraisBrazil

Due to the current water scarcity in the world,it is extremely important to improve the use of this natural and exhaustible resource in agriculture,by contributing to increase agricultural production and *** models of crop growth simulation were developed to predict the edaphoclimatic effects on crop *** models are calibrated and validated for a given region using the data generated from field ***,the objective of this study was to calibrate and validate the FAO AquaCrop model for yacon(Smallanthus sonchifolius)crop in a tropical *** experiment was conducted in an experimental area located in the municipality of Ibatiba,state of Espírito Santo(Brazil)during the years of 2013 and *** calibration was done using the Autumn planting and validation with the Winter and Spring *** the statistical analysis,the coefficient of determination,Willmott concordance index,bias for the systematic error,root mean square error and the mean absolute error to test the model performance were *** general,the FAO AquaCrop model predicted the root yield,total biomass and harvest index with acceptable accuracy,and with deviations of less than 6%for total and root *** planting of yacon showed a reduction in yield as well as total biomass.

关键词： Smallanthus sonchifolius root yield simulation modelling agrometeorology

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Radiographic and tomographic description of marlin sucker Remora osteochir, Pisces: Echeneidae—preliminary data of one specimen

引用

Marine Life Science & Technology 2020年第3期2卷 246-251页

作者： Andréluiz Veiga Conrado Renata Stecca lunes Carlos Eduardo Malavasi Bruno Aline Tiemi Shiraishi Rocha JoséRoberto Machado Cunha da silva Laboratory of Evolutive Histophysiology Department of Cell and Developmental BiologyInstitute of Biomedical SciencesUniversity of Sao PauloAvenida ProfLineu Prestes1524Cidade UniversitariaSao Paulo 05508-000Brazil Laboratory of Immunological Techniques Applied to Morphophysiology School of Veterinary Medicine and Animal ScienceDepartment of SurgeryUniversity of Sao PauloAvenida Prof.Di.Orlando Marques de Paiva87.Cidade UniversitariaSao Paulo 05508-270Brazil

Remoras are commensal fish of various marine species,such as sharks,swordfishes,turtles,dolphins,manta rays and *** specimen of marlin sucker Remora osteochir was evaluated using computed tomography for skeletal digital reconstruction,digital radiology for general evaluation and bone counting,and the double contrast technique to distinguish coelomic *** radiographic images,it was possible to observe otoliths in the center of the neurocranium,to count 27 vertebrae,nine pairs of ribs,and to detect the presence of the hipural and epural bones near of the caudal *** double contrast images,it was possible to visualize the swim bladder,gills,heart,liver,stomach and *** the tomographic images and reconstructions,it was possible to identify the intercalar bones of the cephalic disc;the spine with vertebral bodies composed of neural arches and ventral ribs;and the pectoral girdle formed by posttemporal,cleithrum and scapulocoracoid *** was concluded that digital radiology and computed tomography were able to describe anatomical structures of marlin sucker *** without the need for dissection.

关键词： Teleost fish Double contrast Computed tomography Digital radiology Skeleton

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Acaricidal activity of Derris floribunda essential oil and its main constituent

引用

Asian Pacific Journal of Tropical Biomedicine 2017年第9期7卷 791-796页

作者： Ana Claudia Fernandes Amaral Aline de SRamos Marcia Reis Pena Jose luiz Pinto Ferreira Jean Michel SMenezes Geraldo JNVasconcelos Neliton Marques da silva Jefferson Rocha de Andrade silva Lab de Plantas Medicinais e Derivados Depto de Quimica de Produtos NaturaisFarmanguinhosFundacao Oswaldo CruzRio de JaneiroRJBrazil Lab de Entomologia e Acarologia Agricola Faculdade de Ciencias AgrariasUniversidade Federal do AmazonasManausAMBrazil Lab de Cromatografia Depto de QuímicaUniversidade Federal do AmazonasManausAMBrazil 4Instituto de Ciencias Exatas e TecnologiaUniversidade Federal do AmazonasItacoatiaraAMBrazil

Objective: To evaluate the acaricidal activity of the essential oil obtained from roots of Derris floribunda(D. floribunda)(Miq.) Benth, and its main constituent nerolidol against the Mexican mite Tetranychus mexicanus(T. mexicanus)(Mc Gregor).Methods: The essential oil from the roots of D. floribunda collected in the Amazon region(Brazil) was obtained by hydrodistillation. Its chemical composition was determined by GC–MS analysis. The acaricidal activities of this essential oil and nerolidol,were evaluated by recording the number of dead females(mortality) and eggs(fertility).Results: The essential oil showed sesquiterpenes as major volatile components. Nerolidol, the main component, represented 68.5% of the total composition of the essential oil. D. floribunda essential oil and nerolidol showed acaricidal activity, with LC_(50) of9.61 mg/m L air and 9.2 mg/m L air, respectively, over a 72 h period. In addition, both the essential oil and nerolidol significantly reduced the fecundity of T. ***: Due to the economic importance of T. mexicanus and the lack of new pesticides, our data are very promising in the search for efficient and safer acaricidal products. Furthermore, this is the first report about the chemical composition and bioactivity of the essential oil of the Amazon plant species D. floribunda.

关键词： Acaricidal activity Essential oil Nerolidol Organic agriculture Sesquiterpenes Timb

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Dipeptidyl peptidase 4(DPP4),adipose inflammation,and insulin resistance:is it time to look to the hepatocyte?

引用

Hepatobiliary Surgery and Nutrition 2018年第6期7卷 499-500页

作者： Wellington S.silva Júnior Maria das Gracas C.Souza luiz Guilherme Kraemer-Aguiar Endocrinology Discipline Faculty of MedicineCenter of NaturalHumanHealthand Technology SciencesFederal University of Maranhao(UFMA)PinheiroMABrazil Laboratory for Clinical and Experimental Research on Vascular Biology(BioVasc) Biomedical CenterState University of Rio de Janeiro(UERJ)Rio de JaneiroRJBrazil Postgraduate Program in Clinical and Experimental Physiopathology(FISCLINEX) Faculty of Medical SciencesUERJRio de JaneiroRJBrazil Endocrinology Department of Internal MedicineFaculty of Medical SciencesUERJRio de JaneiroRJBrazil

Dipeptidyl peptidase 4(DPP4),also known as adenosine deaminase binding protein or cluster of differentiation 26(CD26),is a serine exopeptidase able to inactivate peptides composed of proline,hydroxyproline,or alanine as the penultimate *** has a strong capacity to act in various peptides and is also widely expressed in many specialized cell types,such as endothelial cells,macrophages,and *** its physiological aspects,DPP4 inactivates the glucagon-like peptide-1(GLP-1),an incretin secreted by the gastrointestinal tract(1).Based on the antidiabetic actions of this incretin,several DPP4 inhibitors(named as gliptins)were launched in the market and are being in use for the treatment of type 2 diabetes(1).It is noteworthy that DPP4 also inactivate some cytokines,chemokines,and neuropeptides involved in inflammation,immunity,and vascular function(2).

关键词： inflammation immunity peptidase

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

GO FAIR Brazil:A Challenge for Brazilian Data Science

引用

Data Intelligence 2020年第1期2卷 238-245,316,317页

作者： Luana Sales Patricia Henning Viviane Veiga Maira Murrieta Costa Luis Fernando Sayao luiz Olavo Bonino da silva Santos Luis Ferreira Pires Instituto Brasileiro em Informacao em Ciencia e Tecnologia Rio de Janeiro-RJ22290-160Brazil Universidade Federal do Estado do Rio de Janeiro Rio de Janeiro-RJ22290-240Brazil Fundacao Oswaldo Cruz Rio de Janeiro-RJ21040-900Brazil Ministerio da Ciencia TecnologiaInovacoes e ComunicacoesEsplanada dos MinisteriosBloco R-BrasiliaDFCEP 70067-900Brazil Comissao Nacional de Energia Nuclear Rua Gal.Severianon 90 Bairro:BotafogoCEP 22290-901-Rio de JaneiroBrazil GO FAIR International Support&Coordination Office(GFISCO) Leiden 2333 AAThe Netherlands University of Twente Enschede 7522 NHThe Netherlands

The FAIR principles,an acronym for Findable,Accessible,Interoperable and Reusable,are recognised worldwide as key elements for good practice in all data management *** understand how the Brazilian scientific community is adhering to these principles,this article reports Brazilian adherence to the GO FAIR initiative through the creation of the GO FAIR Brazil Office and the manner in which they create their implementation *** contextualise this understanding,we provide a brief presentation of open data policies in Brazilian research and government,and finally,we describe a model that has been adopted for the GO FAIR Brazil implementation *** Brazilian Institute of Information in Science and Technology is responsible for the GO FAIR Brazil Office,which operates in all fields of knowledge and supports thematic implementation ***,GO FAIR Brazil-Health is the first active implementation network in operation,which works in all health domains,serving as a model for other fields like agriculture,nuclear energy,and digital humanities,which are in the process of adherence *** report demonstrates the strong interest and effort from the Brazilian scientific communities in implementing the FAIR principles in their research data management practices.

关键词： FAIR principles GO FAIR GO FAIR Brazil Open Science Research data

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Lameness prediction in broiler chicken using a machine learning technique

引用

Information Processing in Agriculture 2021年第3期8卷 409-418页

作者： Irenilza de Alencar Naas Nilsa Duarte da silva Lima Rodrigo Franco Gonc¸alves luiz Antonio de Lima Henry Ungaro Jair Minoro Abe Paulista University-Graduate Program in Production Engineering Sao PauloBrazil

Broiler flock welfare is usually assessed through mortality,physiology,behavior,and walk-ing *** possibility of assessing broiler chicken lameness using the bird walking abil-ity was investigated using the machine learning approach for the first *** on broiler walking speed and acceleration,genetic strain,and sex were recorded and input in a *** were classified according to the 6-point gait score(GS0 is a sound bird,and GS5 is a severely lame bird).Decision trees were built initially using all *** confusion matrix of each developed model was *** pruning technique was used,removing from the dataset the variables that did not infer in the classification *** reorganized the dataset and re-arranged the data by grouping the intermediate target class of gait score using the Borda Count ***-processing data,we obtained a new set of decision *** the 3-point gait score(GS0 is a sound bird,and GS2 is a lame bird),we obtained a new model with better accuracy(78%);however,the model had a lower accuracy for classifying lame broilers(GS2,5%).The final decision tree was selected for classifying broilers,either sound or lame,according to their walking *** developed model presented good accuracy(91%),and it ordered properly sound(86%)and lame birds(92%).The novel model might be used to assess broiler lameness on-farm by registering the bird displacement *** developments using the model might allow flock lameness detection automatically.

关键词： Broiler welfare Broiler walking speed Decision tree Confusion matrix Gait score

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Clinical/Behavioral Monitoring of Rodents and Rabbits Undergoing Scientific Experiments

引用

Open Journal of Veterinary Medicine（兽医学） 2024年第5期 91页

作者： luiz Cesar Cavalcanti Pereira Jhônata Willy Rocha Coelho Hyago da silva Medeiros Elidio Rita de Cássia dos Passos Ferraz Da silva João Gabriel Regis Sobral Bárbara Alves de Brito Soledade Leandro Thomaz Vilela Isabele Barbieri Dos Santos

来源：博看期刊评论

在线全文

博看期刊

学校读者我要写书评

暂无评论

Long-Term Trends in Near-Surface Wind Speed over the Southern Hemisphere: A Preliminary Analysis

引用

International Journal of Geosciences 2016年第7期7卷 938-943页

作者： luiz Felipe N. Cardoso Wanderson luiz silva Maria G. A. Justi da silva Department of Meteorology Federal University of Rio de Janeiro Rio de Janeiro Brazil Meteorology Laboratory State University of Northern of Rio de Janeiro Macaé Brazil

Many studies that discuss observed trends in wind speed focus primarily on regions of the Northern Hemisphere, so there is little research directed to the Southern Hemisphere. This paper pre- sents a preliminary investigation of possible statistically significant trends in wind speed over the Southern Hemisphere, with a detailing on the South American continent, between 1961 and 2008. Thus, data from the 20th Century Reanalysis V2 were examined with statistical tests of Mann- Kendall and Sen’s Bend in order to establish the significance and the magnitude of detected trends. The previous results indicate statistically significant trends of increase in average wind speedover the equatorial region of the planet, as well as in the eastern sector of the South Pacific and South Atlantic Oceans. In South America, the most significant trends of decrease in wind speed were noted in some areas of the southern sector of the continent, even as in the adjacent Atlantic Ocean to Argentina. Further studies should be performed to physically support the occurrence of these trends in wind speed. In addition, other observed and reanalysis data sets should be explored to update and corroborate these primary analyzes.

关键词： Climate Change Mann-Kendall Reanalysis Southern Hemisphere Trends Wind Speed

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：