检索结果-南通市图书馆

Antitumor effects of electrochemical treatment

Chinese Journal of Cancer Research 2013年第2期25卷 223-234页

作者： Héctor Manuel Camué Ciria Maraelys Morales González Lisset Ortíz Zamora Luis Enrique Bergues Cabrales Gustavo Victoriano Sierra González Luciana oliveira de oliveira Rodrigo Zanella Antonio Carlos Buzaid Orlando Parise Luciana Macedo Brito Cesar Augusto Antunes Teixeira Marina das Neves Gomes Gleyce Moreno Venicio Feo da Veiga marcos Telló Carla Holandino Research department National Centre of Applied Electromagnetism Oriente University Pharmacy department Oriente University Finlay Institute La lisa. La Habana Cuba Veterinary Teaching Hospital Federal University of Rio Grande do Sul. Porto Alegre Sírio e Libanês Hospital Faculty of Pharmacy Medicine Department Federal University of Rio de Janeiro Professor Paulo de Góes Institute of Microbiology Federal University of Rio de Janeiro Pontifical Catholic University of Rio Grande do Sul. Porto Alegre

Electrochemical treatment is an alternative modality for tumor treatment based on the application of a low intensity direct electric current to the tumor tissue through two or more platinum electrodes placed within the tumor zone or in the surrounding areas. This treatment is noted for its great effectiveness, minimal invasiveness and local effect. Several studies have been conducted worldwide to evaluate the anfitumoral effect of this therapy. In all these studies a variety of biochemical and physiological responses of tumors to the applied treatment have been obtained. By this reason, researchers have suggested various mechanisms to explain how direct electric current destroys tumor ceils. Although, it is generally accepted this treatment induces electrolysis, electroosmosis and electroporation in tumoral tissues. However, action mechanism of this alternative modality on the tumor tissue is not well understood. Although the principle of Electrochemical treatment is simple, a standardized method is not yet available. The mechanism by which Electrochemical treatment affects tumor growth and survival may represent more complex process. The present work analyzes the latest and most important research done on the electrochemical treatment of tumors. We conclude with our point of view about the destruction mechanism features of this alternative therapy. Also, we suggest some mechanisms and strategies from the thermodynamic point of view for this therapy. In the area of Electrochemical treatment of cancer this tool has been exploited very little and much work remains to be done. Electrochemical treatment constitutes a good therapeutic option for patients that have failed the conventional oncology methods.

关键词： Direct electric current electrochemical treatment antimmoral treatment tumor tumor electrolysis rumor entropy dissipative structure

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

LC-ESI-IT-MS/MS and MALDI-TOF Approach:Identification of Natural Polymers from Rhizophora mangle Barks and determination of Their Analgesic and Anti-inflammatory Properties

引用

Natural Products and Bioprospecting 2019年第1期9卷 23-34页

作者： Leonardo Mendes de Souza Mesquita Caroline Fabri Bittencourt Rodrigues Claudia Quintino da Rocha Mayara Silveira Bianchim Clenilson Martins Rodrigues Vanda Maria de oliveira Henrique Hessel Gaeta Mariana Novo Belchor marcos Hikari Toyama Wagner Vilegas Laboratory of Bioprospection of Natural Products(LBPN) UNESP-Sao Paulo State University/Coastal Campus of Sao VicentePc¸a Infante Dom Henrique S/NSao VicenteSao Paulo CEP:11330-900Brazil Laborato´rio de Estudos Avanc¸ados em Fitomedicamentos(LEAF) UFMA-Federal University of MaranhaoAv.dos Portugueses1966-BacangaSao Luı´sMaranhao CEP:65080-805Brazil Embrapa Agroenergy Brazilian Agricultural Research CorporationW3 NortePqEBBrası´liaDF 70770-901Brazil

We recognize the chemical composition of the acetonic extract of Rhizophora mangle barks(AERM)using mass spectrometry analysis[liquid chromatography(LC)–ESI–IT-MS/MS and matrix-assisted laser desorption/ionization-time of flight-MS(MALDI-TOF)].Analgesic activity was evaluated by formalin and tail-flick experimental ***-inflammatory activity was performed by paw edema test induced by carrageenan and 48/80 *** first series of experiments involved[LC]–FIA–IT-MS/MS with 11 separated catechins derivatives until degree of polymerization 3(DP3).The spectra obtained by MALDI-TOF analysis of the AERM presented two homologous series:one based on polymers of m/z 288 Da increments(up to DP12)and another series based on polymers of m/z[288?162]Da increments(up to DP11).In addition to these series of flavan-3-ol,each DP had a subset of masses with a variation of-16 Da(homologous series of afzelechins-m/z 873–3465 Da)and +16 Da(homologous series of gallocatechins-m/z 905–3497 Da).A similar pattern with homologous series of gallocatechins and afzelechins could also be observed for a fifth and a sixth monohexoside series:glucogallocatechins(m/z 779–3371)and glucoafzelechins(m/z 747–3339).The intraperitoneal administration of different doses of AERM(50,150 and 300 lg mL^(-1))have a morphine-like effect and intense anti-inflammatory activity.

关键词： Catechins Tannins Morphine-likeeffect Anti-inflammatory Mangroves

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

First Record in Brazil of Epistylis sp. (Ciliophora) Adhered to Argulus sp. (Argulidae), a Parasite of Hoplias aimara (Eritrhinidae)

引用

Natural Resources 2016年第6期7卷 331-336页

作者： Lincoln Lima Corrêa marcos Sidney Brito oliveira Luiza Prestes marcos Tavares-Dias Universidade Federal do Oeste do Pará (UFOPA) Instituto de Ciências e Tecnologia das águas (ICTA) Santarém Brasil Programa de Pós-Graduaç &atilde o em Recursos Aquáticos Continentais Amazô nicos (PPGRACAM) Universidade Federal do Oeste do Pará (UFOPA) Instituto de Ciências e Tecnologia das águas (ICTA) Santarém Brasil Programa de Pós-Graduaç &atilde o em Ecologia Aquática e Pesca (PPGEAP) Universidade Federal do Pará (UFPA) Belém Brasil Embrapa Amapá Rodovia Juscelino Kubitschek Macapá Brasil

This paper records the first occurrence of Epistylis sp. on the body surface of Argulus sp. parasitizing Hoplias aimara from the upper Araguari River, in the eastern Amazon region, in the north of Brazil. Of the 16 specimens of H. aimara examined, 93.7% had their pelvic, caudal and pectoral fins and tegument infested by Argulus sp. (n = 73), which in turn were infested by Epistylis sp. The specimens of Epistylis sp. from the body surface of Argulus sp. were analyzed using Scanning Electron Microscopy (SEM). The present study also identified a widening of the geographic distribution of these two species of ectoparasites to the eastern Amazon region of Brazil.

关键词： Parasite Ecology Opportunistic Parasite Rio Araguari Eastern Amazon

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

Assessment of the demarcation Method for Federal Riverine and Accreted Lands: Case Study of the Rio de Janeiro State Section of the South Paraíba River

引用

Journal of Water Resource and Protection 2019年第11期11卷 1313-1326页

作者： Jussara Stutz oliveira Mô nica de Aquino Galeano Massera da Hora marcos Aurélio V. de Freitas Programa de Planejamento Energético da COPPE Rio de Janeiro Federal University Rio de Janeiro Brazil Environmental Water Resources Laboratory Department of Agricultural and Environmental Engineering Fluminense Federal University Niteroi Rio de Janeiro Brazil

This study analyzes the demarcation method of riverine and accreted land of the Brazilian Federal Heritage department and proposes the incorporation of the flow rate corresponding to the recurrence interval of two years, as recommended by the State Environmental Institute of the state of Rio de Janeiro. The case study of the Rio de Janeiro section of the Paraiba do Sul River was investigated, and the results indicate that the Federal Heritage department’s method does not consider the ongoing anthropization of the river, caused mainly by the construction and operation of hydroelectric plants. In addition, it was observed that the limnimetric scales of the studied gauging stations are influenced by constant changes in the riverbed and by riverbank occupation, making it difficult to estimate the ordinary flood level. The study concludes by suggesting the adoption of a flow rate with a recurrence interval of two years and the simulation of the runoff conditions for demarcation of the average ordinary flood line.

关键词： Federal Heritage department Limnimetric Scales Average Ordinary Flood Level

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

Isoflavone and Mineral Content in Conventional and Transgenic Soybean Cultivars

引用

American Journal of Plant Sciences 2015年第13期6卷 2051-2059页

作者： Gabriela Rezende Costa Nilton de oliveira Couto e Silva Josémarcos Gontijo Mandarino Rodrigo Santos Leite Nilson César Castanheira Guimaraes roberto Goncalves Junqueira Renata Adriana Labanca Postgraduate Program in Food Science Faculty of PharmacyFederal University of Minas Gerais(UFMG)Belo HorizonteBrazil Laboratory of Metal Contaminants(LCM) Division of Health and Environmental Surveillance(DIVISA)Octavio Magalh&atildees Institute(IOM)Funda&ccedil&atildeo Ezequiel Dias(FUNED)Rua Conde Pereira CarneiroBelo HorizonteBrazil Brazilian Agricultural Research Corporation-Embrapa Soja LondrinaBrazil National Agricultural Laboratory/LANAGRO-Ministry of Agriculture Livestock and Food Supply/MAPAPedro LeopoldoBrazil

The objective of this study was to evaluate the differences in composition among six brands of conventional soybean and six genetically modified cultivars (GM). We focused on the isoflavones profile and mineral content questioning the substantial equivalence between conventional and GM organisms. The statement of compliance label for conventional grains was verified for the presence of genetic modified genes by real time polymerase chain reaction (PCR). We did not detect the presence of the 35S promoter in commercial samples, indicating the absence of transgene insertion. For mineral analysis, we used the method of inductively coupled plasma-optical emission spectrometry (ICP-OES). Isoflavones quantification was performed by high performance liquid chromatography (HPLC). The results showed no statistical difference between the conventional and transgenic soybean groups concerning isoflavone content and mineral composition. The concentration of potassium, the main mineral component of soy, was the highest in conventional soybeans compared to that in GM soy, while GM samples presented the highest concentrations of iron.

关键词： Glycine max Genetically Modified Organism Bioactive Compounds ICP-OES HPLC

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

Separability Analysis of Atlantic Forest Patches by Comparing Parametric and Non-Parametric Image Classification Algorithms

引用

Journal of Geographic Information System 2019年第5期11卷 567-578页

作者： marcos roberto Martines Mariana de Paula Garcia Lúcio Alexandre D. M. Cavagis Marcel Fantin Ricardo Vicente Ferreira Matheus oliveira Alves Rogério Hartung Toppa Federal University of So Carlos UFSCar/NEEPC So Carlos So Paulo Brazil Federal University of So Carlos UFSCar/DFQM So Carlos So Paulo Brazil University of So Paulo USP So Carlos So Paulo Brazil Federal University of Triangulo Mineiro Minas Gerais Brazil Faculdades Associadas de Uberaba FAZU Minas Gerais Brazil.

The aim of this work was to differentiate Atlantic Forest patches, as well as their spatial distribution, from other tree covers that compose the landscape, by comparing three methods of digital images classification, using techniques of geoprocessing and remote sensing. The study area was a sub-basin of the Iperó River, tributary of the Iperó-Mirim stream, Sarapuí River basin, in Araçoiaba da Serra, State of São Paulo, Brazil. This research has been developed on a Geographic Information System environment platform, using medium resolution images from Sentinel-2 Satellite. Three image classification algorithms: Maximum Likelihood Classification (MLC), Support Vector Machines (SVM) and Random Tree (RT) were applied to verify the separability of forest patches, forestry and other uses. The results were analyzed by means of a confusion matrix, accuracy and kappa index, thus showing that the three algorithms were able to successfully differentiate the targets, with the higher efficiency attributed to MLC and the lowest to RT. Overall, the three classifiers presented errors, but specifically for the forest patches, the highest accuracy was obtained from SVM.

关键词： Atlantic Forest Land Cover Image Classification

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

Management Crop Production System: using Precision Farming concept for a decision making

Management Crop Production System: using Precision Farming c...

引用

国际农业工程大会

作者： Evandro Chartuni Mantovani marcos Joaquim Matoso Antonio Carlos de oliveira Gisela de Avellar IrenilzadeAlencarNs Senior Researcher Embrapa Corn and Sorghum Sete Lagoas-MGBrazil Embrapa Corn and Sorghum Sete Lagoas-MG Brazil Embrapa Corn and Sorghum Sete Lagoas-MG Brazil Embrapa Corn and Sorghum Sete Lagoas-MG Brazil College of Agric. Eng. - UNICAMP Campinas-SP Brazil.

＜正＞ The change of data into information is the most important aspects when using precision agriculture concept, in order to understand crop yield differences in the same area of production. The objectives of this paper is to present a Management Crop Production System Methodology to help farmers make decisions of a specific intervention on the low production and unprofitable areas. This work was developed in Sete Lagoas, state of Minas

关键词：

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Acquisition System for Photovoltaic Panels with Data Storage in Remote Sewer Platforms Using Open Source Platforms Raspberry Pi and Arduino

引用

Journal of Electrical Engineering 2017年第3期5卷 157-162页

作者： Jose Ilton de oliveira Filho Wilk Maia Coelho marcos Eduardo Do Prado Villarroel Zurita Mateus de Melo Araujo and Yago Borges Moreira department of Electrical Engineering Federal University of Piaui Teresina 64049-550 Brazil

This paper consists of a prototype for a data acquisition system connected via wireless network for data storage on a remote server. This study presents the acquisition board and the operating principle of the whole system developed starting at the measurement of data up to its storage on a remote server. Using a remote server connected to the Internet implies the possibility of analysis, manipulation and control of such data from anywhere in the world.

关键词： Photovoltaic panel acquisition remote server.

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

Effectiviness, Safety and Satisfaction in Teleurology

引用

Open Journal of Urology 2022年第7期12卷 383-393页

作者： Thome Barros Junior marcos Kalaf Farah Albeny Igor José Caetano de Lima Guilherme Bastos Palitot de Brit Moacir Cavalcante de Albuquerque Neto Fábio oliveira Vilar Federal University of Pernambuco Recife Brazil Hospital of Clinics of Federal University of Pernambuco Recife Brazil

Introduction: Telemedicine has been used as a tool for improving access to health services worldwide. The aim of the present study is thus to evaluate the effectiveness of urological consultation by videoconference, perceptions regarding safety on the part of medical teams providing video consultation services and patient satisfaction after a urological appointment. Materials and Methods: A cross-sectional, observational, and analytical study was carried out with 50 volunteers referred from the basic health unit for a urology appointment. All patients were evaluated remotely by videoconference and in person by different urology teams. Results: The study revealed that effectiveness in terms of the degree of match between diagnoses performed by video consultation and those performed in person was 92%. The urology team’s perception regarding safety, measured using an in-house safety questionnaire, was high for both videoconferencing and in-person consultations and there was no statistical difference between the two (overall safety score for video consultation compared to in-person consultation was 9.7 ± 0.8 compared to 9.6 ± 0.8 and the p-value was 0.3 for Student’s t-test). Patient satisfaction with the appointment was similarly high for both groups, averaging 9.72 ± 0.4 among patients who attended a video consultation and 9.82 ± 0.4 among those whose consultation was conducted in person, with a p-value of 0.10478 for Student’s t-test. Conclusion: Video consultation in urology is an effective way to perform diagnoses, with high levels of perceived safety among urologists and high satisfaction rates among patients.

关键词： Urology Telemedicine Telecommunications Appointments and Schedules

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

Metal-enriched nanoparticles and black carbon:A perspective from the Brazil railway system air pollution

引用

Geoscience Frontiers 2021年第3期12卷 624-635页

作者： Bianca D.Lima Elba C.Teixeira James C.Hower Matheus S.Civeira Omar Ramírez Cheng-Xue Yang marcos L.S.oliveira Luis F.O.Silva Postgraduate Program in Remote Sensing and Meteorology Geosciences InstituteUniversidade Federal do Rio Grande do SulAv.Bento Gonçalves9500Porto AlegreRS 91501–970Brazil Research department Fundação Estadual de Proteção Ambiental Henrique Luís RoesslerAv.Borges de Medeiros261Porto AlegreRS 90020–021Brazil Center for Applied Energy Research University of Kentucky2540 Research Park DriveLexingtonKY 40511USA Postgraduate Program in Mines Metallurgy and MaterialsUniversidade Federal do Rio Grande do SulAv.Bento Gonçalves9500Porto AlegreRS 91501–970Brazil Faculty of Engineering Environmental EngineeringUniversidad Militar Nueva GranadaKm 2 CajicáZipaquiráColombia Institute of Earth Science China University of Geosciences(Beijing)29 Xueyuan RdHaidian DistrictChina department of Civil and Environmental Universidad de la CostaCUCCalle 58#55-66BarranquillaAtlanticoColombia Universidad de Lima Departamento de Ingeniería civil y Arquitectura.Avenida Javier Prado Este 4600–Santiago de Surco 1503Peru

Having a better understanding of air pollutants in railway systems is crucial to ensure a clean public *** study measured,for the first time in Brazil,nanoparticles(NPs)and black carbon(BC)on two groundlevel platforms and inside trains of the Metropolitan Area of Porto Alegre(MAPA).An intense sampling campaign during thirteen consecutive months was carried out and the chemical composition of NPs was examined by advanced microscopy *** results showed that highest concentrations of the pollutants occur in colder seasons and influenced by variables such as frequency of the trains and passenger ***,internal and external sources of pollution at the stations were *** predominance of NPs enriched with metals that increase oxidative stress like Cd,Fe,Pb,Cr,Zn,Ni,V,Hg,Sn,and Ba both on the platforms and inside trains,including Fe-minerals as hematite and magnetite,represents a critical risk to the health of passengers and employees of the *** interdisciplinary and multi-analytical study aims to provide an improved understanding of reported adverse health effects induced by railway system aerosols.

关键词： Nanoparticles Potential hazardous elements Environmental chemistry Human health Railway environment Indoor air quality

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

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：