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Journal of Materials Science and Chemical Engineering 2013年第7期1卷 13-23页

作者： Vitor César Dumont Rafael Menezes Silva Luiz Edmundo Almeida-Júnior Juan pedro Bretas Roa Adriana Maria Botelho Maria Helena santos Department of Dentistry Federal University of Vales do Jequitinhonha and Mucuri Diamantina Brazil Department of Dentistry Federal University of Vales do Jequitinhonha and Mucuri Diamantina Brazil Advanced Biomaterial Center-BioMat UFVJM Diamantina Brazil Department of Dentistry Federal University of Vales do Jequitinhonha and Mucuri Diamantina Brazil Advanced Biomaterial Center-BioMat UFVJM Diamantina Brazil Institute of Science and Technology UFVJM Diamantina Brazil

The study modifies an adhesive system with hydroxyapatite nanoparticles as load, characterizing it and evaluate the effectiveness of its bond to dental structure. The middle thirds of healthy premolar tooth crowns were obtained, and each crown was sectioned vertically, resulting in two sections. The sections were divided into ten groups (n = 15), in which resin composite restorations were simulated: (G1E and G1D) conventional adhesive system (SAC);(G2E and G2D) SAC modified with HAP;(G3E and G3D) Primer modified with HAP;(G4E and G4D) monocomponent adhesive system;(G5E and G5D) self-etching adhesive system. The specimens were submitted to the microshear test and characterization technique. There was statistically significant difference (Kruskal-Wallis) between the groups (p 0.01). G3 presented the highest bond strength to enamel (64.40 MPa, ±7.36) and dentin (39.59 MPa, ±21.46). The majority of specimens were found adhesive fractures. Bond strength to enamel and dentin of the primer modified with HAP of SAC showed higher values.

关键词： Nanostructures Composites Mechanical Properties Fracture

Turbulent Energy Budgets of a Ground Vortex Flow

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Journal of Mechanics Engineering and Automation 2013年第5期3卷 311-324页

作者： Jorge M.M. Barata pedro J.C.T. santos André R.R. Silva Diamantino F.G. Durāo Dept. of Aerospace Science University of Beira Interior Covilhgā 6200-001 Portugal Lusiada Institute for Research and Development Universidade Lusiada Lisbon 1349-001 Portugal

Turbulent kinetic energy budgets are presented for a highly curved flow generated by the collision of plane wall turbulent jet with a low-velocity boundary layer. The different terms are obtained in the vertical plane of symmetry by quadratic interpolation of the LDV （Laser Doppler Velocimetry） measurements, for a wall jet-to-boundary layer velocity ratio of 2. The results, which have relevance to flows encountered in powered-lift aircraft operating in ground effect, quantify the structure of the complex ground vortex flow. The analysis of turbulent energy equation terms using the measured data revealed that production by normal and shear stresses are both very important to the turbulent structure of the impact zone of the ground vortex. This is an indication that the modeling of turbulence of a ground vortex requires a good representation of the production by normal stresses which is most important in the collision zone.

关键词： V/STOL (vertical/short take-off and landing) ground vortex turbulence complex flows.

Evolution of the Socio-cognitive Structure of Knowledge Management(1986–2015): An Author Co-citation Analysis

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Journal of Data and Information Science 2019年第2期4卷 36-55页

作者： Carlos Luis González-Valiente Magda León santos Ricardo Arencibia-Jorge Biblioteca Nacional de Cuba "José Martí" ave.Independencia Facultad de Comunicación Universidad de la Habana San Pedro entre Ermita y Avenida Independencia Empresa de Tecnologías de la Información

Purpose: The evolution of the socio-cognitive structure of the field of knowledge management(KM) during the period 1986–2015 is described. Design/methodology/approach: Records retrieved from Web of Science were submitted to author co-citation analysis(ACA) following a longitudinal perspective as of the following time slices: 1986–1996, 1997–2006, and 2007–2015. The top 10% of most cited first authors by sub-periods were mapped in bibliometric networks in order to interpret the communities formed and their ***: KM is a homogeneous field as indicated by networks results. Nine classical authors are identified since they are highly co-cited in each sub-period, highlighting Ikujiro Nonaka as the most influential authors in the field. The most significant communities in KM are devoted to strategic management, KM foundations, organisational learning and behaviour, and organisational theories. Major trends in the evolution of the intellectual structure of KM evidence a technological influence in 1986–1996, a strategic influence in 1997–2006, and finally a sociological influence in 2007–*** limitations: Describing a field from a single database can offer biases in terms of output coverage. Likewise, the conference proceedings and books were not used and the analysis was only based on first authors. However, the results obtained can be very useful to understand the evolution of KM *** implications: These results might be useful for managers and academicians to understand the evolution of KM field and to(re)define research activities and organisational ***/value: The novelty of this paper lies in considering ACA as a bibliometric technique to study KM research. In addition, our investigation has a wider time coverage than earlier articles.

关键词： Knowledge management Bibliometrics Author co-citation analysis Knowledge domain visualization Social network analysis Intellectual structure

Presence of the Genes cagA, cagE, virB11 and Allelic Variation of vacA of Helicobacter pyloriAre Associated with the Activity of Gastritis

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Open Journal of Gastroenterology 2014年第11期4卷 347-355页

作者： pedro Pinheiro de Negreiros Bessa Francivandi Coelho Barbosa Ana Paula santos do Carmo Gildo Barreira Furtado Fernanda Capelo Barroso Silvia Helena Barem Rabenhosrt Laboratory of Molecular Genetics (LABGEM) Department of Pathology and Forensic Medicine Federal University of Ceara Fortaleza Brazil Hospital Universitário Walter Cantídeo—HUWC-UFC Fortaleza Brazil

Non-atrophic active chronic gastritis (ACG) is characterized by the presence of H. pylori in the gastric epithelium, known to be one of the first steps that precede progression to gastric adenocarcinoma. Inactive chronic gastritis (ICG) suggests that the patient has H. pylori gastritis, but this diagnosis is rarely made in routine histopathology. Clinical manifestations associated with H. pylori infection are potentially due to differences in virulence between strains;however, it is unclear if the progression of ACG to ICG depends on the H. pylori strain. The aim of this study was to compare the prevalence of the virulence factors of H. pylori found in patients with ACG and ICG, and its influence on the development of ICG. A significant association was observed between H. pylori detection by histological examination and the activity of gastritis (p 1 year) was reported by 28.6% of the ACG group and 42.5% of the ICG, while no evidence of association between long-term use of PPI and decreased inflammation was found in the patients studied. The genes cagA, cagE and virB11 were statistically associated with ACG (p = 0.01, p vacAs1 allele groups, ACG was associated with the most virulent group (p = 0.0015), while ICG was associated with the less virulent group (p < 0.001). The rate of co-infection was significantly higher in ICG than in ACG cases (p = 0.02). In conclusion, this study points to the role of virulent strains of H. pylori in the non-resolution of gastritis.

关键词： Active Chronic Gastritis Inactive Chronic Gastritis Helicobacter pylori Genotypes

指标在流域管理规划和战略环境评价过程中的应用(下)

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环境影响评价 2019年第5期41卷 I0005-I0013页

作者： Rosa santos Coelho pedro S.Coelho Tomas B.Ramos Paula Antunes 吴成志(译) 张怡悦(译) 卿野(译) Faculdade de Ciencias e Tecnologia Departamento de Ciencias e Engenharia do AmbienteCenter for Environmental and Sustainability Research (CENSE)Universidade NOVA de LisboaCampus da CaparicaCaparicaPortugal Instituto Politecnico de Santarem Escola Superior AgrariaSantaremPortugal Faculdade de Ciencias e Tecnologia Departamento de Ciencias e Engenharia do AmbienteMarine and Environmental Sciences Centre (MARE)Universidade NOVA de LisboaCampus da CaparicaCaparicaPortugal 三捷环境工程咨询(杭州)有限公司

流域管理规划(RBMP)和战略环境影响评价(SEA)过程通常需要使用指标来评估规划方案的可持续性、与利益相关者进行沟通并对决策提供支持。这项研究的目的是为了支持主要过程和调查指标的使用效果,并分析整合后的情况。葡萄牙RBMP的内容分... 详细信息

流域管理规划(RBMP)和战略环境影响评价(SEA)过程通常需要使用指标来评估规划方案的可持续性、与利益相关者进行沟通并对决策提供支持。这项研究的目的是为了支持主要过程和调查指标的使用效果,并分析整合后的情况。葡萄牙RBMP的内容分析及相应的SEA报告采用了概念框架来支持其内容的定性分析。主要的发现是指标通常被用于SEA和规划报告中。被分析的文件中使用了大量的指标,其中大多数指标是定量的,并在组织、选择和验证时使用了差别很大的方法。通常这些过程都不需要公众参与。此研究给出了需要改进的方面,例如还需研究是否有需要增加利益相关者在指标发展过程中的参与度、标准化和交叉性指标使用时的相关性以及两个过程中都使用的关键性指标的确定。

关键词：河流流域管理规划环境影响评价指标概念框架内容分析

VEGF System in Dog’s Thymus—Temporal Expression

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Open Journal of Veterinary Medicine 2015年第10期5卷 211-217页

作者： Fernanda Rodrigues Agreste pedro Primo Bombonato Kaique Nogueira Anna Clara dos santos André Rodrigues da Cunha Barreto-Vianna Eduardo Maurício Mendes de Lima Faculdade de Medicina Veterinária e Zootecnia Universidade de Sao Paulo Sao Paulo Brasil Faculdade de Agronomia e Medicina Veterinária Universidade de Brasília Brasília Brasil

Given the importance of the thymus to the immune system and the limited knowledge about its development and involution processes, this study evaluated the expression of the vascular endo-thelial growth factor, a key angiogenic factor for the formation of vascular tissue bed and modulation of functions related to cell proliferation and migration, hormone synthesis, and immunomodulation. In this study, thymus samples of dog fetuses (30, 40, 50 and 60 days old), and young (180 days old) and adult (365 days old) dogs were submitted to real-time PCR and Western blot. Time-dependent changes were observed for proteins and genes associated with the development of the vascular system, such as VEGF-A, VEGF-C, Flt-1, KDR, FLT-4, and EG-VEGF. This result demonstrates that these system components play different roles during development and involution of the thymus. Possible functions, such as the modulatory effect on vasculogenesis and microenvironment, influence the proliferation and differentiation of thymocytes, T cells maturation, cell-cell interaction and hormone secretion.

关键词： Angiogenesis Factor EG-VEGF Immune System Thymus Vascular Endothelian Growth Factor

Lettuce production according to different sources of organic matter and soil cover

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Agricultural Sciences 2014年第2期5卷 99-105页

作者： Maria Aparecida Moreira Carlos Allan Pereira dos santos Ariovaldo Antonio Tadeu Lucas Flávio Gabriel Bianchini Igor Machado de Souza pedro Roberto Almeida Viégas Department of Agricultural Federal University of Sergipe Sergipe Brazil Department of Agronomy Federal University of Sergipe Sergipe Brazil University of Lavras Minas Gerais Brazil

Lettuce (Lactuca sativa L.) is one of the leading vegetables produced by farmers in the Itabaiana region, and thus it is important to study means of sustainable management for the crop. The objective of this work was to evaluate the behavior of lettuce with different sources of organic matter and soil cover. Therefore, it was chosen to cultivate Veronica. The experiment was carried out in the experimental field plot of Project Small Farmer—Great Entrepreneur in the municipality of Itabaiana-SE, in 2010. The design was a randomized block design with four replications, with treatments consisting of five sources of organic matter (organic compost, chicken manure, cattle manure, sheep manure, and castor bean) and a control (no fertilizer), all with and without mulch, totaling 12 treatments. We evaluated the characteristics of plant diameter, plant height, fresh and dry root and shoot matter. We also evaluated the influence on the temperature and soil water tension. All productivity characteristics valuated showed the significant interaction between the type of fertilizer and the mulch, except for root dry weight, where only organic manure was a significant factor. When soil mulch was used, the best source of organic matter for growing lettuce was chicken manure, and in the impossibility of using this cover, we recommend the use of organic compost as a source of organic matter, as it showed the best result in the absence of coverage. The cover age also showed good results in relation to a temperature that promoted lower soil water tensions.

关键词： Lactuca sativa L. Organic Fertilizer Soil Water Tension

Discrepancies between the responses to skin prick test to food and respiratory antigens in two subtypes of patients with irritable bowel syndrome

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World Journal of Gastroenterology 2008年第19期14卷 3044-3048页

作者： Rosa LS Soares Hamilton N Figueiredo Jose M santos Rita F Oliveira Raquel L Godoy Felipe AP Mendona Internal Medicine Department Faculty of Medicine-Federal Fluminense University Internal Medicine Department Faculty of MedicineFederal Fluminense University Medical school of Universitary Hospital Antonio pedro Federal Fluminense University Medical school of Faculty of Medicine Federal Fluminense University

AIM:To compare the response to skin prick tests (SPTs) to food antigens (FAs) and inhalant allergens (IAs) in patients with two subtypes of irritable bowel syndrome (IBS) and healthy controls. METHODS:We compared the results of SPTs for IAs and FAs in 87 volunteers divided into three groups:diarrhea predominant IBS (D-IBS) GroupⅠ(n = 19), constipation predominant IBS (C-IBS) Group Ⅱ (n = 17), and normal controls Group Ⅲ (n = 51). RESULTS:Of the 285 tests (171 for FAs and 114 for IAs) performed in GroupⅠwe obtained 45 (26.3%) positive responses for FA and 23 (20.1%) for IA. Of the 153 tests for FA in Group Ⅱ, we obtained 66 (20.1%) positive responses, and of the 102 tests for IA, we obtained 20 (19.6%) positive responses. Of the 459 tests for FA performed in Group Ⅲ, we obtained 39 (84%) positive responses, and of the 306 for IA, we obtained 52 (16.9%) positive responses. The numbers of positive responses were not significantly different between the three groups, but in the D-IBS group, the number of SPTFA responses differed significantly from those for the other two groups (P < 0.01). CONCLUSION:Despite the small number of cases studied, the higher reactivity to FAs in GroupⅠcompared to Groups Ⅱ and Ⅲ adds new information, and suggests the presence of a possible alteration in intestinal epithelial function.

关键词： Atopy Constipation Diarrhea Foodintolerance Irritable bowel syndrome Skin prick test

Remote Sensing Applied to the Evaluation of Spatial and Temporal Variation of Water Quality in a Coastal Environment, Southeast Brazil

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Journal of Geographic Information System 2019年第5期11卷 500-521页

作者： pedro Bettencourt Julio Cesar Wasserman Fábio Ferreira Dias Paulo Roberto Alves Dandara Bernardino Bezerra Camila Américo santos Luis Perez Zotes Sérgio Ricardo Barros Post-Graduate Program in Sustainable Systems Management UFF Niterói Brazil Post-Graduate Program in Geochemistry UFF Niterói Brazil Department of Geoenvironmental Analysis UFF Niterói Brazil Pós graduao em Biologia Marinha e Ambientes Costeiros UFF Niterói Brazil Pós graduao em Engenharia de Biossistemas UFF Niterói Brazil.

The monitoring of water quality in large coastal regions demands great analytical efforts through the collection of many samples, over long periods. Remote sensing is a reliable tool that can provide valuable information on the spatial and temporal variations of environmental parameters, particularly turbidity and chlorophyll a. The aim of the present research was to evaluate the spatial and temporal distribution of water quality from 2005 to 2017 along the north coast of São Paulo and its responses to the implementation of industrial developments and to variations in rainfall. Fifty-two MODIS images were used, showing concentrations of chlorophyll a and turbidity, in the dry season and wet season, from 2005 to 2017. The results showed that dilution processes (due to rainfall) control chlorophyll a concentrations. However, a notable increase in concentrations could be identified after the installation of some of the developments in the region, particularly roads and ports. Turbidity was also shown to be affected by dilution processes, and during the wet season this parameter presented lower values. No effect in the results of turbidity could be identified from the installation of roads or ports, showing that vegetation cover exerts an important control on the erosional processes.

关键词： Water Quality Chlorophyll a Turbidity MODIS Remote Sensing

Metabolic-associated fatty liver disease is associated with low muscle mass and strength in patients with chronic hepatitis B

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World Journal of Hepatology 2022年第8期14卷 1652-1666页

作者： Cecy Maria de Lima santos Matheus Duarte Brito pedro Alves Soares Vaz de Castro Thais Pontello de Vries Nataly Lopes Viana Marta Paula Pereira Coelho Olívio Brito Malheiro Tatiana Bering Maria Cristina Gonzalez Rosangela Teixeira Rodrigo Dias Cambraia Gifone Aguiar Rocha Luciana Diniz Silva Sciences Applied to Adult Health Care Post-Graduate Programme Faculdade de Medicina Universidade Federal de Minas GeraisBelo Horizonte 30130-100Minas GeraisBrazil Outpatient Clinic of Viral Hepatitis Instituto Alfa de GastroenterologiaFaculdade de MedicinaUniversidade Federal de Minas GeraisBelo Horizonte 30130-100Minas GeraisBrazil Faculdade de Medicina Universidade Federal de Minas GeraisBelo Horizonte 30130-100Minas GeraisBrazil Department of Locomotor System Faculdade de MedicinaUniversidade Federal de Minas GeraisBelo Horizonte 30130-100Minas GeraisBrazil Department of Food and Nutrition Universidade Federal de Mato GrossoCuiabá78060-900Mato GrossoBrazil Postgraduate Program in Health and Behaviour Catholic University of PelotasPelotas 96015-560Rio Grande do SulBrazil Laboratory of Research in Bacteriology Faculdade de MedicinaUniversidade Federal de Minas GeraisBelo Horizonte 30130-100Minas GeraisBrazil Department of Internal Medicine Universidade Federal de Minas GeraisBelo Horizonte 30130-100Minas GeraisBrazil

BACKGROUND Although the prognostic relevance of sarcopenia has been increasingly recognised in the context of liver disease,there is a paucity of data evaluating body composition in patients with chronic hepatitis B(CHB).Beyond virus-related factors,nutritional and metabolic aspects can be associated with skeletal muscle abnormalities in these patients and should not be *** To evaluate the association between components of sarcopenia and demographic,clinical,lifestyle,nutritional,and biochemical variables in CHB *** Dual-energy X-ray absorptiometry(DXA)was used to assess muscle mass by quantifying appendicular lean mass(ALM)adjusted for body mass index(ALMBMI).Muscle function was evaluated by hand grip strength(HGS)and the timed up and go ***-associated fatty liver disease(MAFLD)was defined according to the criteria proposed by an international expert panel.A body shape index and the International Physical Activity Questionnaire were used to assess central obesity and physical activity level,*** This cross-sectional study included 105 CHB outpatients followed at the tertiary care ambulatory centre(mean age,48.5±12.0 years;58.1%males;76.2%without cirrhosis;23.8%with compensated cirrhosis).The DXA-derived fat mass percentage was inversely correlated with the ALMBMI(r=-0.87)and HGS(r=-0.63).In the multivariable analysis,MAFLD,sedentarism and central obesity were positively and independently associated with low *** and central obesity were independently associated with low *** MAFLD and central obesity were associated with low muscle mass and strength in patients with chronic hepatitis B,independent of the liver disease stage.

关键词： Chronic hepatitis B Appendicular lean mass Muscle strength Metabolic associated fatty liver disease Central obesity Physical performance