检索结果-南通市图书馆

Care Measures and Health Outcomes in a Pediatric Intensive Care Unit in Brazil

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

Open Journal of Pediatrics（儿科学期刊） 2023年第5期

作者： Arnildo Linck Junior Flávia Lopes Gabani Edmarlon Girotto ana maria Rigo Silva Selma Maffei Andrade

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

在线学习环境中课程完成原因探析(英文)

开放教育研究 2009年第1期15卷 60-64页

作者：艾尔文.史蒙纳特.Q.阿利普玛丽亚.安娜.T.昆伯菲律宾开放大学教育学院洛斯巴诺斯大学公共关系学院

很多提供在线课程的教育机构所面临的一大挑战就是开发能够提高学生动机的教学策略,从而提高课程和项目的完成率。本研究利用Eastmond(1994)开发的"基于计算机会议的成人远程学习框架"(AdultDistance Study through Computer Conferenci... 详细信息

很多提供在线课程的教育机构所面临的一大挑战就是开发能够提高学生动机的教学策略,从而提高课程和项目的完成率。本研究利用Eastmond(1994)开发的"基于计算机会议的成人远程学习框架"(AdultDistance Study through Computer Conferencing,简称ADSCC),探讨了学习者的准备情况、在线特征、与计算机媒介传播(Computer Mediated Communication,tuj tq CMC)相关的学习方法等因素是否会影响虚拟学习环境中学生自备课程完成情况。研究结果表明,以上因素与课程完成情况有着显著的正相关。同时研究还发现,自我动机、对技术的信任,以及技术的易用等是在线学习环境中课程完成的主要原因。

关键词：课程完成在线学习环境在线课程

Development of Baccharis dracunculifolia(Asteraceae)Essential Oil Nanoemulsion and Its Biological Activity on Pre-pupae of Cochliomyia hominivorax(Diptera:Calliphoridae)

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

Journal of Pharmacy and Pharmacology 2019年第6期7卷 293-308页

作者： Jaqueline Seugling Shirley Kuhnen Giuliano Pereira de Barros maria Beatriz Velerinho Letícia Mazzarino Patrizia ana Bricarello Animal Parasitology Laboratory Agrarian Sciences CenterFederal University of Santa CatarinaFlorianópolis 88034-001Brazil Biochemical and Animal Morphophysiology Laboratory Agrarian Sciences CenterFederal University of Santa CatarinaFlorianópolis 88034-001Brazil NanobioMat Agrarian Sciences CenterFederal University of Santa CatarinaFlorianópolis 88034-001Brazil

Myiasis is considered a serious medical condition in animals and humans that occurs predominantly in tropical *** hominivorax is one of the main fly species that causes myiasis and the actual geographic distribution includes the Caribbean and all of South America,except *** use of synthetic insecticides and endectocides in livestock for the myiasis treatment has resulted in insect resistance,while also causing residuals in the environment and contamination of animal food *** active compounds are considered an alternative for the sustainable management of insects,as they are biodegradable and less damaging to the *** study developed a nanoemulsion containing the essential oil of Baccharis dracunculifolia and evaluated its in vitro effects on *** *** pressure homogenization was used to develop the *** tests were carried out with the tested products using 15 larvae/repetition,for a total of 150 larvae per *** different concentrations of the nanoemulsion were tested shortly after preparation and after 120 days of *** the fresh formulation,at concentrations of 5,7.5,10,13.5,and 15%(w/v)we found mortality of 28,48,70,84,and 97%,respectively,while for the stored formulation,we found mortality of 17,36,51,81,and 92%.The larvicidal effect was similar,except for the concentrations of 5 and 10%(w/v)(p<0.05).Our results show that the natural based *** nanoemulsion can be considered a promising alternative for the treatment and control of myiasis caused by ***.

关键词： Natural products insecta phytotherapy larvicidal activity myiasis

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欧盟的政治时钟能统一吗?

中国经济报告 2013年第12期 111-112页

作者：安娜.玛丽亚约比斯里维斯王艺璇西班牙零售销售商DIA GROUP董事会法国兴业银行董事会 <中国经济报告>

欧盟怎样才能排除成员国不断选举造成的干扰？可否考虑将欧盟不同成员国的“政治时钟”全部调整为“同一时刻”？

关键词：欧盟时钟政治成员国

Carbon and Nitrogen in the Soil Profile under the Canopy Dipteryx alata(Baru)in Pasture

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

Journal of Life Sciences 2018年第4期12卷 189-194页

作者： maria Luisa Pegoraro Rodrigues Sebastiao Ferreira de Lima ana Paula Leite de Lima Natália Pegoraro Rodrigues maria Aparecida dos Santos Amanda Amorim da Silva Autonomous graduate in forestry engineeringresearch in silvicultureNova Andradina 79750-000Brazil Agronomy and forestry engineering Federal University of Mato Grosso do SulChapadao do Sul 79560-000Brazil Autonomous graduate in forestry engineeringresearch in silvicultureAlcinópolis 79530-000Brazil PhD student in Terrestrial ecotoxicology at the University of Aveiro/Aarhus Aveiro 3200-628Portugal

The presence of trees in the pastures can bring several benefits to both the animals and to the soil under their ***,the objective of this study was to evaluate the levels of organic carbon and nitrogen under the baru canopy in the soil *** adult baru trees were *** samplings were made at the four cardinal points at four different distance points from the projection radius of the crown,being:P1=one-third of the crown projection radius length;P2=two-thirds of the crown projection radius length;P3=extremity of the crown projection radius;P4=one and a half times the maximum crown projection radius *** samples were collected at each point at depths of 0-0.10,0.10-0.20 and 0.20-0.40 *** carbon and nitrogen contents were evaluated and the C/N ratio was *** baru trees influenced the soil organic and carbon contents in the areas under their *** organic carbon and nitrogen contents were higher in relation to the tree trunk(P1)and also in the most superficial layer of the soil(0-0.10 m).The C/N ratio was higher outside the tree canopy and in the deeper layer.

关键词： Organic matter C/N ratio leguminous trees

In vitro and in vivo trypanocidal action of aescin and aescin liposomes against Trypanosoma evansi in experimental mice

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Asian Pacific Journal of Tropical Biomedicine 2014年第12期4卷 947-951页

作者： Matheus Dellamea Baldissera Nathieli Bianchin Bottari Thirssa Helena Grando Roberto Christ Vianna Santos ana Julia Figueiro Dalcin Patrfcia Gomes Renata Platcheck Raffin Carine Eloise Prestes Zimmerman Janio Morais Santurio Silvia Gonzalez Monteiro Aleksandro Schafer Da Silva Department of Microbiology and Parasitology Universidade Federal de Santa Maria(UFSM) Laboratory of Microbiology Centro Universitdrio Franciscano Laboratory of Nanotechnology Centro Universitdrio Franciscano Department of Animal Science Universidade do Estado de Santa Catarina(UDESC)

Objective:To verify the trypanocidal effectiveness of aescin and aescin liposomes against Trypanosoma evansi in vitro and in ***:Aescin and aescin liposomes were used in vitro on trypomastigotes at different concentrations(0.5%,1.0%and 2.0%) and exposure times(0,1,3,6 and 9 h).In vivo tests were performed using mice as the experimental *** evansi infected mice were treated with aescin and aescin liposomes with doses of 60 and 100 mg/kg during 4 ***:The three concentrations tested in free form and nanoencapsulated showed trypanocidal activity in vitro,completely eliminating the parasites in small concentration after6 h of *** treated with aescin(100 mg/kg) and aescin liposomes(100 mg/kg)showed increase in longevity,however without curative ***:Active compounds present in natural products,such as aescin,may potentiate the treatment of trypanosomosis when used in association with other trypanocidal drugs.

关键词： Surra Nanotechnology Aesculus hippocastanum Trypanosome

Electrophoresis(SDS-PAGE)as a Method for Screening Species of Passiflora Using Seed Proteins as Molecular Markers

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Agricultural Science and Technology(B) 2022年第2期12卷 40-47页

作者： Marilia Penteado Stephan ana maria Costa Tatiana De Lima Azevedo Jeane Santos Da Rosa Alexsandro Araújo Dos Santos Embrapa Food Technology Laboratory of Biochemistry Avenida das AméricasRio de Janeiro 29501RJ 23020470Brazil Embrapa Cerrados BR-020km 18Mailbox:08223Planaltina 73310-970DFBrazil

Brazil is the center of diversity and dispersion of species of the genus *** species of passion fruit Passiflora tenuifila BRS VT(passiflora garlic)and another of Passiflora setacea BRS PC were used in this *** plants were grown on the Embrapa Cerrados experimental *** fruits were washed,minimally cut and their constituents *** species differed in the proportion of wet mass between husk,seed,and *** expected,both species had a higher proportion of husks and seeds and a lower amount of pulp.A semi-purification procedure for the proteins present in the seeds and husks was described and the molecular aspects were analyzed by polyacrylamide gel electrophoresis(SDS-PAGE).The quantification of soluble proteins was performed using the Bradford *** analysis of the soluble protein extracted from the seeds and husks showed that these values are up to 70 times higher for the seeds of *** and 28.5 times for ***,in the *** was verified that both species present a similar protein profile,observed by the intense and diverse bands found in the polyacrylamide gel,mainly in the range of 32 to 19 *** work opens up an unexplored field of tracking bioactive proteins and/or peptides including forms of nanostructure systems that protect other bioactive *** objective of this work was to present an analytical procedure to semi-purify seed proteins of two Passiflora species and use electrophoresis as an analysis tool for further screening of their protein profiles and selection of a molecular marker to differentiate them.

关键词： Protein screening method bioactive peptides seeds P.setacea P.tenuifila mass distribution on fruit

WJSC 6^(th) Anniversary Special Issues(2):Mesenchymal stem cells Neurotrauma and mesenchymal stem cells treatment:From experimental studies to clinical trials

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Stem Cells 2014年第2期6卷 179-194页

作者： ana maria Blanco Martinez Camila de Oliveira Goulart Bruna dos Santos Ramalho Júlia Teixeira Oliveira Fernanda Martins Almeida Laboratory of Neurodegeneration and Repair Institute of Biomedical SciencesHealth Science Center Pathology Department Faculty of MedicineFederal University of Rio de Janeiro Federal University of Rio de Janeiro Campus Macaé

Mesenchymal stem cell(MSC)therapy has attracted the attention of scientists and clinicians around the *** and pre-clinical experimental studies have highlighted the positive effects of MSC treatment after spinal cord and peripheral nerve *** effects are believed to be due to their ability to differentiate into other cell lineages,modulate inflammatory and immunomodulatory responses,reduce cell apoptosis,secrete several neurotrophic factors and respond to tissue injury,among *** are many pre-clinical studies on MSC treatment for spinal cord injury(SCI)and peripheral nerve ***,the same is not true for clinical trials,particularly those concerned with nerve trauma,indicating the necessity of more well-constructed studies showing the benefits that cell therapy can provide for individuals suffering the consequences of nerve *** for clinical trials for SCI treatment the results obtained so far are not as beneficial as those described in experimental *** these reasons basic and pre-clinical studies dealing with MSC therapy should emphasize the standardization of protocols that could be translated to the clinical set with consistent and positive *** review is based on pre-clinical studies and clinical trials available in the literature from 2010 until *** the time of writing this article there were 43 and 36 pre-clinical and 19 and 1 clinical trials on injured spinal cord and peripheral nerves,respectively.

关键词： Neurotrauma Stem cell therapy Mesenchymal stem cells Pre-clinical studies Clinical trials

Does Playing Games Contribute to Develop Better Attitudes？

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Psychology Research 2014年第4期4卷 301-309页

作者： maria Thereza Costa Coelho de Souza ana Lucia Petty Camila Tarif Ferreira Folquitto mariana Ines Garbarino Tamires Alves Monteiro University of Sao Paulo S~o Paulo Brazil

This research was held at the Laboratory of Studies about Development and Learning (Institute of Psychology, University of Sao Paulo) for the period of three semesters in which children with learning disabilities aged 7-11 years were observed in a game context mediated by professionals. It investigated in which categories playing games interfered in the construction of favorable attitudes towards the learning and development processes. To collect data researchers used a questionnaire, answered in the beginning and at the end of each semester, and where attitudes were registered considering four categories: time, space, objects and interaction. A total of 88 questionnaires were analyzed. Results show that: (1) All categories increased scores; (2) There was no decrease in any category; (3) At space and objects there were more visible changes, comparing high scores between the first and third semesters, increasing 25% and 36% respectively; (4) At time and interaction, changes showed 20% high score increase in both, also comparing first with third semester; and (5) It was identified a decrease in low scores at time and there were not visible changes at interaction. Taking Piaget"s theory as reference and the practice in seeing children with learning disabilities at the laboratory, playing games in an intervention context contributes to help them build up better attitudes towards reasoning and social development.

关键词：游戏背景学习障碍开发专业人士研究人员相互作用社会发展实验室