bluuebunny/crossref_metadata_2025 huggingface dataset:
Antropologia, etnografia e educação: questões de/para a pesquisa a partir da etnologia indígena
Authors: Jesus de Santana José Valdir , Cohn Clarice
Published: December 2017

Neste artigo interessa-nos pensar a relação entre antropologia, etnografia e educação a partir de um duplo exercício: primeiramente, refletir acerca da possibilidade de construção de um diálogo entre antropologia, etnografia e educação, como tem sido discutido por Gusmão (1997, 2003, 2010, 2015), Dauster (1996, 2007, 2014), Rocha e Tosta (2009), Tosta e Rocha (2014), Oliveira (2012, 2013a, 2013b, 2013c), dentre outros; por outro lado, procuraremos demonstrar como esse diálogo tem sido construído a partir das experiências escolares entre povos indígenas em nosso país, e do como a etnografia tem se tornado central para a compreensão dessas experiências.
Conocimientos didáctico-matemáticos de profesores en la perspectiva de la educación matemática
Authors: Crisostomo Edson , Nogueira de Castro e Almeida Shirley Patrícia
Published: December 2017

Este artigo contempla uma pesquisa com o objetivo de analisar as componentes mediacional e interacional do processo de ensino-aprendizagem da Integral a partir do modelo de conhecimentos didático-matemáticos (CDM) de professores de matemática. Esse modelo foi desenvolvido baseado nas ferramentas de análise do Enfoque Onto-Semiótico do Conhecimento e a Instrução Matemática. Consiste em uma pesquisa qualitativa, desenvolvida por meio de um estudo de caso realizado com dez formadores de professores de matemática, experts no processo de ensino universitário do Cálculo Integral. Nas conclusões ressaltamos a potencialidade do modelo CDM na análise e sistematização da dimensão didática da Integral que emerge dos relatos dos formadores.
Escenarios tecnológicos para la enseñanza y los aprendizajes de anatomía e histologia
Authors: Fabro Ana Patricia , Curi Graciela , Costamagna Alicia
Published: December 2017

Con el fin de favorecer el aprendizaje de Anatomía e Histología, se implementó en el año 2008 en la Cátedra de Morfología Normal, en la asignatura Anatomía e Histología de la carrera de Licenciatura en Nutrición una propuesta de enseñanza y aprendizaje de modalidad combinada (blended learning o b-learning), es decir complementando las actividades presenciales con recursos virtuales. Mediante la presente investigación se estudian los aportes que propuesta presentada genera en la enseñanza y los aprendizajes de dichas disciplinas. A partir de lo investigado se aprecia que, en un ámbito de adecuada infraestructura tecnológica como el estudiado, el uso de las TIC para la enseñanza y los aprendizajes de Anatomía e Histología logra una producción y gestión más significativa del conocimiento y el desarrollo de dominios procedimentales y de comprensión en docentes y alumnos.
ESTADO, TERRITÓRIO E UNIDADE NACIONAL NA REPÚBLICA VELHA.
Authors: Santiago João Phelipe
Published: December 2017

A questão da unidade e da integração nacional é recorrente nas teorizações do pensamento social brasileiro, e perpassa as preocupações dos teóricos do pensamento conservador. A questão nacional no Brasil republicano é central no pensamento de Alberto Torres. Este destaque revela-se através de suas preocupações com as forças que fragmentam e unem a criação de uma unidade nacional. Nesse sentido concebe o desenvolvimento do Estado e do território aliado às questões sociais as questões ambientais, econômicas e culturais. Sobre isso traçamos alguns paralelos com o paradigma ratzeliano.
COMPORTAMENTO DE COMPRA DO CONSUMIDOR HOMOAFETIVO
Authors: Gomes de jesus Graziele , Gomes Almiralva Ferraz , Teixeira Simone Andrade
Published: December 2017

O consumo tem se mostrado cada vez mais presente no cotidiano das pessoas e o mercado vem oferecendo diferentes formas de compra, produtos e serviços diversificados. A população vem mudando sua concepção de compra, atribuindo novos valores e tomando posse de direitos conquistados. Diante disso, o presente estudo objetivou analisar os fatores que influenciam o comportamento de compra do consumidor homoafetivo conquistense no segmento do varejo da moda. Os resultados apontaram que os consumidores homoafetivos entrevistados são jovens, com renda relativamente média, com escolaridade em processo de aprimoramento. Suas compras são realizadas em lojas físicas do comércio local, onde compram frequentemente produtos de vestuário.
ANÁLISE SOBRE AS DEFINIÇÕES TERRITORIAIS DE CIDADE, MUNICÍPIO E METRÓPOLE NA DIVERSIDADE DO TERRITÓRIO BRASILEIRO
Authors: Veiga Daniela Andrade Monteiro , Matta Jana Maruska Buuda da , Veiga Artur José Pires
Published: December 2017

Este artigo objetiva uma discussão sobre os critérios para definição de cidades, meio urbano e suas delimitações no território. Critérios para elucidar discussões político-administrativas e geográficas baseado na conceituação fornecida pelo IBGE, elaboradas para a realização dos censos, que repercutem na tomada de decisões de planejamento urbano e gestão política. Os procedimentos se fundamentam nas ferramentas de geoprocessamento, analises vetoriais referente as poligonais resultantes de operações geométricas que definem as cidades, áreas urbanas, rurais, municípios, metrópoles e regiões, ao passo que, os dados alfanuméricos associados a essas poligonais, são representados por população, domicílios, renda, saneamento, arrecadação de impostos, distribuição de recursos federais, dentre outros. Portanto, no âmbito dessa delimitação perpassam muitas questões, que norteiam a legislação do uso do solo, as políticas públicas, a aplicação de recursos e esforços onde for necessário melhorar as condições do ambiente construído em suas diferentes escalas e complexidades.
GESTÃO E INDICADORES DE ABASTECIMENTO DE ÁGUA NO SETOR URBANO DE LAGOA REAL - BAHIA
Authors: Duca Tadeus Dias , Pimentel Junívio Da Silva
Published: December 2017

A gestão de recursos hídricos, como forma de planejamento e otimização, tem por base, práticas que considerem múltiplas formas de utilização da água. O ato de gerir preconiza estabelecimento de mecanismos fiscalizadores, ações que garantam a qualidade e quantidade da água, assim como minimizar as tensões nos sistemas naturais. O objetivo desse estudo é analisar o uso e gestão dos recursos hídricos, tendo como foco o abastecimento urbano da cidade de Lagoa Real-Bahia. Foram utilizados indicadores do Sistema Nacional de Informações sobre Saneamento para compreender sobre o abastecimento urbano. A partir da análise da área de estudo, verificou-se que parte dos princípios legais não é aplicada, principalmente, no que se refere à informação e comunicação, garantia de qualidade e quantidade de água disponível a população.
AS DESIGUALDADES SOCIAIS NA PRODUÇÃO DO ESPAÇO E OS DESAFIOS DO RURAL CONTEMPORÂNEO
Authors: Nascimento João Ernandes Barreto , Costa José Eloízio da , Alcantara Fernanda Viana de
Published: December 2017

O objetivo deste trabalho consiste em fazer reflexões sobre as contradições que se estabeleceram na sociedade capitalista e relacionar com os contrastes presentes no rural brasileiro contemporâneo. É fruto de parte da proposta de dissertação e da participação em reuniões, contando com revisão de literatura selecionada e coleta de dados secundários no Instituto Brasileiro de Geografia e Estatística (IBGE). Diante disso, ressalta-se a importância da geografia para a compreensão das relações que produzem o espaço de maneira (i) racional e desigual, valendo ressaltar que, diante das armadilhas criadas pelo sistema capitalista, o Estado social pode ser considerado, dentro das regras que regem a sociedade, o agente que poderá minimizar os contrastes sociais.
Sumário
Authors: Teixeira Paulo Marcelo Marini
Published: December 2017

Sumário
Apresentação
Authors: Teixeira Paulo Marcelo Marini
Published: December 2017

Apresentação
7 Anexo
Authors: Teixeira Paulo Marcelo M.
Published: December 2017

Anexo
1 Química escolar: percepções e expectativas de Estudantes do ensino médio
Authors: Quadros Ana Luiza de Quadros Luiza de , Rodrigues Adriana Araújo Dutra , Lares Carlos Alberto R. , Martins Dayse Carvalho da Silva , Moraes Fernanda Antunes de Almeida , Figueiredo Fernando Henrique Silva de , Ferreira Renata Fonseca
Published: December 2017

Os jovens adolescentes que frequentam o Ensino Médio demonstram grande capacidade de engajamento em situações que lhes são atrativas: banda favorita, jogos eletrônicos, time de futebol etc. No entanto, muitos deles demonstram resistência no engajamento com os conteúdos químicos tratados nas escolas. Com o objetivo de entender o que envolve ou poderia envolver os estudantes nas aulas de Química e a percepção de cada um sobre a disciplina, desenvolvemos este trabalho. Aplicamos um instrumento de coleta de dados para quatro turmas de estudantes do Ensino Médio e, por meio da análise, percebemos que os estudantes têm desejos que são compatíveis com a aprendizagem em Química: querem participar mais, querem aulas diversificadas, entre outros desejos. É indicado que nós, professores, assumamos posturas mais voltadas aos anseios dos estudantes conjugando, com isso, a necessária aprendizagem.
4 A supervisão como possibilidade de formação inicial e continuada de professores
Authors: Souza Alisson Da Silva
Published: December 2017

O presente texto apresenta algumas reflexões sobre o trabalho de supervisão realizado no subprojeto “Tecendo histórias e formando professores: memórias, contos e encantos nas expressões sócio-culturais e históricas no cotidiano dos afro-brasileiros” do Programa Institucional de Bolsas de Iniciação à Docência (PIBID), desenvolvido no Campus V da Universidade Estadual da Bahia (UNEB), na cidade de Santo Antônio de Jesus – Bahia. O texto discute as potencialidades do PIBID enquanto dispositivo de formação e reafirma o valor do referido Programa como uma política pública de valorização da carreira docente. Portanto, neste trabalho defendo a importância da supervisão para a formação inicial dos bolsistas e como experiência de reflexão para a formação continuada do próprio professor supervisor.
Corporate and accounting fraud: Types, causes and fraudster’s business profile
Authors: Bekiaris Michalis , Papachristou Georgios
Published: December 2017

Fraud costs economy, businesses, investors and society more than $3 trillion every year. It is a serious problem that, after a series of corporate and accounting scandals, has recently received considerable attention. This essay reviews fraud concept and presents the main fraud schemes and causes that lead people to unethical behavior. We describe fraudster’s personal characteristics and discuss fraud evolution from 2004 to 2016, according to the Association of Fraud Examiners’ Reports to the Nations. This research is one of the few to focus on fraudster’s business profile using a weighted measure of impact in terms of likelihood. In this way, we contribute to the existing fraud literature providing useful information to professionals and academics to further explore firms’ internal environment characteristics that may affect fraudulent behavior. We find that asset misappropriation is the most frequent fraud scheme even if fraudulent financial statement is the most costly. Banking is the industry suffering the most from fraud after 2008; manufacturing experienced the most fraud cases before the financial crisis begins. Owners or executives generate the most high-impact fraud scandals, even if employees commit fraud more frequently. People working more than ten years at a corporation trigger the most severe damage as they have access to valuable information and have gained enough trust to overlap internal controls. Individuals between 41-60 years old seem to generate more damage reflecting their position and tenure within the organization. Our results show that organizational ethical culture and ethical “tone at the top” promoting and encouraging moral attitude are salient for fraud prevention
Influences on adoption of cloud-based ERP systems in SMEs: The technological-organizational-environmental framework
Authors: Bhatti Tariq
Published: December 2017

This paper examines the factors affecting adoption of cloud-based enterprise resource planning (ERP) systems by UAE SMEs using one of the theories of Diffusion of Innovation (DOI). The technology-organization-environment (TOE) framework used in this study integrates factors in the technological, environmental and organizational contexts of organizations. Data were collected from a random sample of 105 SMEs from UAE. Descriptive and inferential techniques were used to analyze the data. The results identified relative advantage, top management support, technology readiness, competitive pressure and trading partner pressure as key determinants that influence the adoption of cloud-based ERP systems by SMEs. The findings can be useful to service providers and cloud computing providers to better understand what affects cloud-based ERP system adoption and to develop marketing strategies to improve their interaction with enterprises
Corporate governance and audit decision making
Authors: Susanto Yulius Kurnia , Pradipta Arya
Published: December 2017

The purpose of this study is to investigate the factors that affect qualified opinion. This study use earnings management, audit quality, audit tenure, firm size, leverage, liquidity, inventories, and losses to predict qualified opinion. The qualified opinion was measured using dummy variables, value 0 for unqualified opinion, 1 other unqualified opinion (Blandón & Bosch, 2013). If the auditor provides an unqualified opinion then the audit opinion is clear. Conversely, if the auditor provides qualified opinion such as going concern, litigation, asset realizing then the audit opinion is unclear (Dopuch et al., 1987). The study uses purposive sampling from financial statement of manufacturing company in Indonesia Stock Exchange for period 2011-2015. This study uses binary logistic regression to test the hypothesis. The result of the research showed that earnings management, audit quality, and tenure can increase the probability of the unqualified opinion. Firm size and losses can increase the probability of the qualified opinion. Meanwhile, leverage, liquidity, and inventories didn’t have statistically significant to predict qualified opinion. Companies that make earnings management, auditors rarely provide a qualified opinion. This is due to the behavior of auditors who are less independent in auditing the financial statements. It is proven that the auditor is likely to give an unqualified opinion to a company that has long been a client. British Telcom conducts Accounting Fraud by making an unfair increase in corporate earnings. For 33 years British Telcom obtained an unqualified opinion from the Public Accounting Firm Price Waterhouse Coopers (PWC). This suggests that the higher the earnings management, audit quality and tenure the higher the likelihood of obtaining an unqualified opinion
Governance in family business: Empirical study in bus transportation industry
Authors: Suseno Bambang Dwi , Dwiatmadja Christantius , Yuniawan Ahyar
Published: December 2017

This study aims to provide clear explanation and answer based on the research gap of previous studies that studied about the relationship between managerial trait from family business and managerial performance. This study also investigates the phenomenon about low managerial performance that triggered low continuity of bus industry belonged to family business in Indonesia. Justification of this research is the first research about manager from family in bus transportation industry in Indonesia, considering the previous research conducted by Sudibyo (2011) related to succession of CEO leadership of Indonesian family company-according to the successor perspective and Sobirin et al., (2013) in batik industry in small scope in City of Pekalongan, Central Java. The model used for testing in this study is multivariate analyses with Structural Equation Model (SEM), which is based on AMOS program. The sample in this study is the manager that holds a position as supervisor and managerial controller of 505 persons. The number of samples is determined by proportion (%) of managers in the bus ownership industry. The questionnaires were distributed through direct distribution and by letter in June, July and August 2015. Of the distributed questionnaires, there are left 283 questionnaires. After being selected, there are 262 questionnaires that can be retested using SEM AMOS 22.0. Based on the result for 9 proposed hypotheses, there are 6 accepted hypotheses and 3 rejected ones. The accepted hypotheses are as follows: the influence of managerial trait in family business on soft governance capability which has coefficient value of 0.517 that shows positive and significant relationship since CR value is 2.705 and significant at 0.007, the influence of soft governance capability on managerial performance which has coefficient value as 0.506 that shows positive relationship since CR value is 6.183 and significant at 0.000. These results prove that soft governance capability has an ability to mediate the relationship between casualties of managerial trait variable on bus transportation industry in Jakarta, and it is significant with alpha value 5%
Carga de enfermedad en años de vida ajustados por discapacidad del cáncer gástrico en Colombia
Authors: Triana Guzmán Juan José , Aristizabal Mayor Juan Diego , Medina Rico Mauricio , Baquero Contreras Laura , Gil Tamayo Sebastian , Leonardi Felice , Legízamo Naranjo Ana María , Castañeda Camilo , Rosselli Diego
Published: December 2017

Objetivo: El cáncer gástrico es la segunda causa de muerte por cáncer y la quinta neoplasia más frecuente en el mundo. En Colombia, es la primera causa de mortalidad por cáncer. La incidencia y mortalidad anuales son 16,3 y 14,2/100.000 habitantes respectivamente. El objetivo de este estudio fue estimar su carga de enfermedad, medida en años de vida ajustados por discapacidad (AVAD), en Colombia.Métodos: Se desarrolló un estudio con enfoque en prevalencia para el año 2014. Para estimar la prevalencia se realizó una búsqueda en los registros del Sistema de Información en Protección Social (SISPRO), y el Departamento Administrativo Nacional de Estadística (DANE). La duración promedio de los casos prevalentes y la sobrevida estimada se obtuvieron de la literatura local. Los AVAD fueron calculados sumando los años de vida perdidos por muerte prematura (AVPM) y los años de vida vividos con discapacidad (AVVD), según metodología de la Organización Mundial de la Salud (OMS).Resultados: las prevalencias estimadas para cinco años en población mayor de 15 años fueron 40,9/100.000 en mujeres y 62,5/100.000 en hombres. El total de AVAD fue 293.418, con una tasa de 623/100.000 habitantes; 97,4% corresponden a AVPM. La tasa de AVVD y AVPM para Colombia fue 16 y 607/100.000, respectivamente.Conclusiones: los datos obtenidos de SISPRO y el DANE estiman una alta carga de enfermedad en Colombia. Es necesaria la implementación de estrategias de detección temprana del cáncer para disminuir la carga de la enfermedad y mejorar el pronóstico de los pacientes.
Divertículos gástricos subcardiales: un hallazgo endoscópico poco frecuente
Authors: Royero Gutiérrez Henry
Published: December 2017

Los divertículos gástricos (DG) son un hallazgo infrecuente. Suelen ser diagnosticados incidentalmente por métodos radiológicos o endoscópicos. Se dividen en congénitos y adquiridos y generalmente son asintomáticos, pero su expresión clínica va desde dolor abdominal inespecífico hasta cuadros clínicos más dramáticos como perforación y sangrado. Se presenta un caso de tres divertículos gástricos en un paciente con antecedentes de colecistectomía y funduplicatura de Nissen con historia de dispepsia funcional. Su tratamiento fué conservador
Enfermedad de Crohn fibroestenótica en íleon medio como manifestación inicial de la enfermedad – Reporte de un caso
Authors: Rey Rubiano Adriana Margarita María , Reyes Medina Gustavo Adolfo , Sierra Arango Fernando , García Duperly Rafael , López Panqueva Rocío Del Pilar , Prada Romero Leidy Paola
Published: December 2017

La enfermedad de Crohn (EC) es una enfermedad inflamatoria intestinal que puede afectar todo el tracto gastrointestinal siendo el intestino delgado el segmento afectado en cerca del 50% de los pacientes, en los cuales el íleon terminal es el área más comúnmente comprometida por la enfermedad.Las estenosis intestinales son una complicación frecuente en la EC y aproximadamente 30 a 50% de los pacientes presentan estenosis o lesiones penetrantes al momento del diagnóstico. Las técnicas endoscópicas convencionales no permiten evaluar las lesiones del intestino delgado, es por esto que se desarrollaron técnicas como la enteroscopia y la video-cápsula endoscópica, teniendo cada una de ellas sus ventajas e indicaciones.Se presenta un caso de un paciente con EC con fibroestenosis localizada en el íleon medio. No es una localización frecuente para este tipo de lesiones
Efeitos ergogênicos da L-carnitina no metabolismo lipídico
Authors: Maffini Pedro Henrique , Peloso Eduardo De Figueiredo
Published: December 2017

Diante da epidemia global de obesidade, suplementos termogênicos tem ganhado destaque com a promessa de diminuição da gordura e melhora na composição corporal. Para tanto, o uso de L-carnitina propõe uma maior oxidação de ácidos graxos, com a diminuição no uso de substâncias glicídicas no metabolismo energético, levando a uma redução nos níveis de gordura corporal. Nesse sentido, esse artigo tem como objetivo revisar a bibliografia acerca do emprego da L-carnitina, ressaltando a relevância e os benefícios associados com a sua suplementação. Dessa forma, as pesquisas sugerem ser possível aumentar a concentração endógena de carnitina, em algumas populações, através da suplementação, que também pode ser estimulada pela concentração de insulina. Por consequência, há priorização no uso de ácidos graxos como fonte energética, em detrimento de glicogênio muscular, ocasionando uma diminuição nos estoques de gordura corporal e beneficiando determinadas modalidades esportivas. No entanto, em razão da escassez de pesquisas sobre o tema, do reduzido tempo empregado na análise dos estudos realizados, bem como, a presença de resultados conflitantes, fazem-se necessárias mais pesquisas sobre o efeito ergogênico da substância.
Análise nutricional e de aceitabilidade de empada à base de grão-de-bico, com recheio de frango e pupunha
Authors: Santos Inez Helena Vieira da Silva , Souza Irismar Chaves de Farias , Silva Sandra Cação Beleza da , Nascimento Kelly Priscila da Silva Maia , Oliveira Thatiana Wanessa de , Lima Erica Maria Cunha , Souza Simone Francisca Nunes de
Published: December 2017

A doença celíaca se caracteriza pela não digestibilidade do glúten, fração proteica presente em trigo, cevada e centeio. No mercado, há pouca disponibilidade de produtos específicos para melhoria da alimentação de pessoa portadora desta doença. Portanto, o objetivo deste trabalho foi elaborara uma empada isenta de glúten, utilizando como base grão-de-bico e recheada com frango e pupunha. Este produto foi desenvolvido como opção que atendesse além deste público, utilizar um alimento típico da região amazônica. A pesquisa foi do tipo transversal, quantitativa e de característica descritiva. Foi desenvolvida uma empada de grão de bico no Laboratório de Práticas Dietéticas do UniSL-RO. Deste produto foram aferidos os valores nutricionais, podendo ser considerado fonte de proteínas e de fibras, por apresentar na porção 13% e 16% respectivamente. Foi aplicado também um teste de aceitabilidade deste para 100 provadores não treinados. Os resultados dos testes sensoriais mostraram-se satisfatórios variando entre gostei extremamente 39% gostei muito 44%, gostei moderadamente 15%, desgostei moderadamente 1% e desgostei extremamente 1%. Por meio do estudo foi constatada a viabilidade da receita, rica em nutrientes essenciais e isenta de glúten, estando apta para alimentação de pessoas celíacas.
ECONOMETRIC ANALYSIS OF THE RELATIONSHIPS BETWEEN GDP AND THE CURRENT AND CAPITAL ACCOUNT FOR THE VISEGRAD GROUP OF COUNTRIES IN 1994-2015
Authors: Błaszczuk Dariusz J.
Published: December 2017

In the paper the relationships between current and capital account balance and GDP are analysed, both from the economic analysis and applied points of view. Next the assumptions, method of analysis and results of our investigation of these relationships are discussed in details. We used yearly data for the Visegrad Group countries in 1994-2015. We applied two versions of linear econometric models and a power one for panel data and for every country separately.
Simulation on marine currents at Midia Cape-Constanta area using computational fluid dynamics method
Authors: Bosneagu Romeo , Scurtu Ionut , Popov Petrica , Mateescu Razvan-Doru , Dumitrache Lucian , Mihailov Maria-Emanuela
Published: December 2017

The work involves assessing of the marine current regime in the north west of the Black Sea, Midia Cape-Constanta area. The area of interest is chosen due its existing features, using marine currents data (direction and speed) within the CFD to determine the distribution of velocities and pressures. The study on the distribution of velocities and pressures, according to local hydro-meteorological characteristic elements, can be used for identifying the risk areas for navigation and existing hydro-technical construction industry. Modelling results using the CFD analysis shows the currents velocity values, pressures and turbulences of the investigated marine region. The model can be used in the analysis and the coastline changes as well as in risk assessment for hydraulic structures. Additional parameters into the model, such as the sea wave characteristics, aim to provide an indication of the potential hydro-dynamic power that is available at a determined location of interest.
Exergy characteristics of rice husks
Authors: Zhang Yaning , Gao Xiaoyan , Bingxi Li , Zhang Haochun , Wang Qian
Published: December 2017

The comprehensive exergy characteristics of thirty two rice husk samples including exergy values (moisture related, S related, ash related, and LHV related) and exergy percentages (moisture related, S related, ash related, and LHV related) were investigated in this study. The results show that the moisture related exergy, S related exergy, ash related exergy, and LHV related exergy are in the ranges of 0-327.93, 0-67.78, 17.88-131.97, and 10577.05-19297.54 KJ/kg, respectively, for the rice husks. The exergy values of rice husks are in the range of 10918.01-19445.76 KJ/kg, and they are mainly determined by the LHV related exergy (96.81-99.70%), followed by moisture related exergy (0-2.66%), ash related exergy (0.11-0.78%), and S related exergy (0-0.43%).
Design and 3-D simulation of a mixed mode solar barn drier for drying wastewater sewage sludge
Authors: Hu Yanjun , Liu Shanshan , Ileleji Klein , Mi Yan , Han Long
Published: December 2017

The paper presents a preliminarily study on an efficient, inexpensive and energy saving solar batch dryer for drying sludge. A concept of a mixed mode solar dryer was developed and designed. Air heated by the solar flat heater was forced through drying chamber by electric fans. A 3-D physical model was used to observe and predict the operation of the solar batch dryer at different time under designed conditions. The thermal performance and air movement of drying chamber in the designed dryer unit were evaluated through ANSYS-FLUENT software. By determining the external conditions, localization and the material properties, the model can predict temperature and humidity distributions in the designed drying chamber and sludge material layers, air-flow field according to the radiation and convection, as well as water quantity evaporated from the sludge. A special attention was paid to implementation of physical boundary conditions on the sludge surface, which is between air and dried sludge. The developed solar barn dryer can heat air at average temperature between 47?C and 57?C, which is optimum for dehydration of the sludge. The designed drying chamber can generate an adequate fow of hot air to increase the drying rate by above 30%.
Research on the virtual synchronous generator control strategy of grid-connected permanent-magnet direct-driven wind power system
Authors: Hao Xiaohong , Wang Huimin , Peng Bei , Yao Zhi , Wang Yixiong , Gu Mingfei
Published: December 2017

Renewable energy, distributed generation, and micro-grid technology have been widely concerned for a long time. The traditional grid-connected inverter control strategy does not take into account the problem of inertia which is short and fast to cause the frequency change. The virtual synchronous generator control strategy is adopted to simulate the synchronous generator characteristics, which enhanced the inertia and damp of the system. For the micro-grid of wind power grid-connected, the storage battery is arranged on the AC side of the permanent magnet direct-drive wind turbine, and the model of the virtual synchronous generator is established. Thus the grid-connected performance of large-scale wind farm is improved. Here, the effect of moment of inertia in the virtual synchronous generator and the grid-connected regulation of virtual synchronous generator are verified by using PSCAD/EMTDC. The simulation results show that the grid-connected inverter controlled by the virtual synchronous generator is approximately equivalent to the synchronous generator in external characteristic. The grid-connected inverter based virtual synchronous generator control has a beneficial to adjust frequency and voltage, and can enhance the standby inertia of new energy and grid power generation
Experimental analysis of a continuous operating ground source heat pump system in Wuhan, China
Authors: Mao Qianjun , Chen Yufeng , Jin Suisui , Shi Lei , Xiao Liangli
Published: December 2017

Coefficient of performance of air conditioning system is the ratio of cooling capacity and power consumption, and also is an important parameter to characterize the performance of the system. Based on an actual ground source heat pump system in Wuhan, China, this paper calculated the coefficient of performance of the system under long-term continuous cooling operation and then evaluated the performance of the system through experiment. The continuous testing time ranged from June 1, 2017, to June 15, 2017, and the outside air temperature ranged from 21?C to 32?C during the testing progress. The experimental results show that the coefficient of performance of the system changes non-linearly with time, and varies greatly with the atmospheric temperature. The results also show that the coefficient of performances average value of the system is about 3.3, and the system has good performance under refrigeration conditions. This paper helps to understand the changes in the distribution characteristics of the coefficient of performance of the ground source heat pump system and promote the wide application of the ground source heat pump system.
Experimental study on a high concentration photovoltaic/thermal system with plane mirrors array
Authors: Chen Haifei , Yang Jie , Ji Jie , Huang Wenzhu , Pei Gang , Zhang Yang
Published: December 2017

A high concentration photovoltaic/thermal system based on plane mirrors array has been developed and analyzed. It is found that the system with plane mirrors array not only can reduce the cost but also achieve a uniform illumination and adjustable concentration ratios. The system produces both electrical and thermal energy, with the electrical efficiency above 22% and the thermal efficiency above 47%. The experimental results show that the temperature coefficient of open circuit voltage in this photovoltaic module is around ?0.12 V/?C. Moreover, when the concentration ratio varies between 200 and 450, the decrease of electrical efficiency with the temperature is 0.08% per?C.
Real-life data on the efficacy and safety of ombitasvir/paritaprevir/ritonavir + dasabuvir +ribavirin in the patients with genotype 1 chronic hepatitis C virus infection in Serbia
Authors: Simonovic-Babic Jasmina , Bojovic Ksenija , Fabri Milotka , Cvejic Tatjana , Svorcan Petar , Nozic Darko , Jovanovic Maja , Skrbic Ranko , Stojiljkovic Milos , Mijailovic Zeljko
Published: December 2017

Background/Aim. The era of direct-acting antiviral (DAA) regimen in the treatment of chronic hepatitis C virus (HCV) started in 2011. The aim of this study was to assess the antiviral efficacy and safety of DAA regimen, ombitasvir (OBV)/paritaprevir (PTV)/ritonavir (r) + dasabuvir (DSV) + ribavirin (RBV), in patients with chronic HCV infection, genotype 1. Methods. The real-life data were collected. The study was multicentric and included seven infectious diseases and hepatology departments in Serbia. A total of 21 patients were enrolled in the OBV/PTV/r + DSV + RBV early access program, 20 of which were previously treated with pegylated interferon + RBV, while 1 was treatment-naive. All patients received the adequate doses of these antiviral drugs. RBV was not given to the patients with HCV genotype 1b infection according to the therapeutic protocol. For the majority of patient, the treatment duration lasted for 12 weeks. For the patients with liver cirrhosis, who were infected with HCV genotype 1a, the duration of treatment was 24 weeks. Viremia was assessed at four points in time: at baseline, 4 weeks after the treatment beginning (rapid viral response, RVR), 12 or 24 weeks after the treatment beginning (end of treatment response ? ETR) and 12 weeks after the end of treatment (sustained viral response ? SVR). SVR, as a confirmation of the absence of HCV was considered as endpoint of successful treatment. Results. Complete RVR, ETR and SVR were achieved in 64.71%, 85.71% and 95.24% of the patients, respectively. Only 3 patients had mild adverse effects which did not required dose reduction. Conclusion. The treatment of the patients with a chronic HCV infection with OBV/PTV/r + DSV + RBV resulted in excellent antiviral activity and tolerability.
Vad ska vi med föreläsningar till?
Authors: Håkansson Andreas
Published: December 2017

Föreläsningen är en märklig undervisningsform. Samtidigt som den är den vanligast förekommande metoden, är den också den mest föraktade. Det finns gott om högskolepedagogisk litteratur som förklarar varför föreläsningen är olämplig för att stimulera lärande. Ändå fortsätter vi föreläsa. Det kan tyckas motsägelsefullt. Denna reflektion vänder på frågan och letar efter föreläsningens fördelar. Utifrån tre öppet tillgängliga föreläsningsserier föreslås tre fördelar med föreläsningen som undervisningsform, fördelar som ofta hamnat i skymundan. De föreslagna fördelarna är: föreläsningar kan genom goda nytolkningar och omformuleringar underlätta inlärningen, den kan ge grund och struktur till nya ämnesområden, och den kan introducera studenter till vad som avses med reflektion på en akademisk nivå. Slutsatsen är inte att alla föreläsningar nödvändigtvis alltid är motiverade, utan att vi med rätt kunskap och inställning kan föreläsa bättre. Uppenbarligen är det mycket lätt att föreläsa på ett sådant sätt att lärande inte främjas. Men det innebär inte att undervisningsmetoden som sådan är alltigenom oanvändbar. I ljuset av reflektionens tre exempel diskuteras också vad vi kan göra för att föreläsa bättre och vilka implikationer detta har för lärare involverade i högre utbildning.
PENGGUNAAN ALAT KOMPRESOR PADA MOTOR BAKAR TORAK SEBAGAI FUNGSI TAMBAHAN KENDARAAN RODA DUA
Authors: Irawan Dwi
Published: December 2017

Melihat keadaan sekitar kita masih banyak tempat-tempat atau jalan-jalan yang masih jauh dari keramaian ataupermukiman penduduk. Sehingga apabila kita berpergian menggunakan sepeda motor kita butuh alat cadangankompresor bila ban sepeda motor kita kempes dijalan ditempat yang jauh dari keramaian. Alat cadangan yangdirancang yaitu kompresor udara, yang sumber tenaganya memanfaatkan tekanan kompresi dari ruang bakar padakendaraan motor roda dua. Bahan-bahan yang dipakai bisa dengan memanfaatkan dari komponen bekas (limbah),seperti busi, katup tekanan balik, selang, nozel kompresor dan klem selang. Alat ini dirancang dengan tujuan sebagai alat alternatif pada kondisi darurat, yang untuk kerja tergantung pada:tekanan udara, volume, efisiensi dan daya adiabatik. Sedangkan factor yang paling dominan adalah prestasi kerjatorak dan silinder sebagai penghasil tekanan yang natabennya merupakan tekanan kompresi pada ruang bakar, untukmengetahui kemampuan kompresor maka dilakukan beberapa perlakuan pengujian yang meliputi tekanan udaramasuk, tekanan udara keluar dan volume silinder, dan temperatur yang saling mempengaruhi, apabila tekanan turunmaka temperaturnya juga turun, apabila volumenya meningkat maka tekanannya akan menurun. Sedangkan prosesyang berlaku adalah cara kompresi adiabatik yang menghasilkan tekanan 1205 kPa. Dari hasil pengujian dan perhitungan didapat tekanan sebesar 13,6 cm3, dan kapasitasnya 0,0118 m/menit.Untuk mengurangi resiko akibat penggunaan alat kompresor ini maka silinder yang digunakan adalah silindersepeda motor 4 tak, karena motor bakar 4 tak menggunakan sistem pelumasan yang berstandar sirkulasi minyakpelumas. Jadi alat kompresor ini tidak menimbulkan kerusakan atau keausan tingkat berat pada komponenkomponenpembangkitdayamotorbakar.3
PENGARUH TEMPERATUR MESOFILIK TERHADAP LAJU ALIRAN BIOGAS DAN UJI NYALA API MENGGUNAKAN BAHAN BAKU LIMBAH KOLAM IKAN GURAME
Authors: Irawan Dwi , Ridhuan Kemas
Published: December 2017

The reserve lack of fossil fuels as a source of energy in contrast to increasing the energy demand growth as human populations, especially in indonesia. Biogas as renewable energy environmentally friendly could be one of solutions to current permasalah energy. Biogas produced with the help of bacteria metanogen or metanogenik. Biogas produced by take waste farm will bring value more. Waste management done with better than it can prevent the environmental pollution also provide added value of business cattle or the cultivation of fish. If dirt shaped mud and it is not so levels soon cleared ammonia in the water would rise and can threaten survival ikan-ikan preserved. The purpose of this study is to find influence temperature mesofilik against the rate of flow of biogas and hasill flame biogas. The method do first is preparing equipment for making a series of using drigen biogas, with varying temperature that 300C mesofilik, 350C, 400C. The result showed, the rate of flow of treatment t1 biogas 736,8 ml/day, as for treatment t2 the rate of flow of biogas 774,8 ml/day, and treatment t3 the rate of flow of biogas 748,75 ml/day and potential biogas 1,8719 ml / liters of raw materials with the same pressure on all the treatment 101.570,25 N/m2. The fiery show results flame blue biogas resulting from all treatment.The result showed treatment temperature impact on the rate of flow of biogas and results flame biogas.
PENGARUH PENAMBAHAN ALAT PENCARI ARAH SINAR MATAHARI DAN LENSA CEMBUNG TERHADAP DAYA OUTPUT SOLAR CELL
Authors: Yani Ahmad
Published: December 2017

Solar cell yang kita kenal saat ini masih memiliki beberapa kekurangan, salah satunya adalah daya yang dihasilkan kurang maksimal, oleh karena itu diperlukan sebuah alat tambahan yang dapat meningkatkan daya solar cell. Tujuan dari penelitian ini adalah untuk mengetahui efek dari penambahan arah pencari sinar matahari dan lensa cembung pada panel solar cell terhadap daya output yang dihasilakan. Metode penelitian yang digunakan adalah metode eksperimen dengan rancangan percobaan berskala kecil atau laboratorium. Hasil penelitian menunjukan adanya pengaruh penambahan alat pencari arah sinar matahari dan lensa cembung terhadap daya output solar cell. Daya tertinggi terjadi pada jam 14:00 dengan alat tambahan dikarenakan solar sell selalu mengikuti arah pencari sinar matahari serta lensa cembung dengan nilai daya output sebesar 0,251 watt, untuk daya terendah terjadi pada jam 07:00 dengan nilai daya output sebesar 0,203 watt. Sedangkan pada solar cell yang tidak dilengkapi alat pencari arah sinar matahari dan lensa cembung mendapatkan daya maksimal pada jam 12:00 dengan nilai daya output sebesar 0,226 watt. Sedangkan daya terendah terjadi pada jam 07:00 dengan nilai daya output sebesar 0, 00004 watt.
PENGARUH BUKAAN GUIDE VANE TERHADAP KINERJA TURBIN PIKOHIDRO TIPE CROSS-FLOW
Authors: Mafruddin Mafruddin , Marsuki Marsuki
Published: December 2017

Turbin Cross-flow merupakan salah satu jenis turbin implus yang paling umum digunakandalam pembangkit listrik tenaga air salah satunya pembangkit listrik tenaga pikohidro. Lokasiyang dapat diaplikasikan turbin Cross-flow sebagai pembangkit listrik tenaga pikohidro yaitudi desa Sumber Agung Kecamatan Suoh Kabupaten Lampung Barat. Salah satu faktor yangmempengaruhi kinerja turbin Cross-flow yaitu bukaan guide vane. Penelitian ini bertujuanuntuk mengetahui pengaruh bukaan guide vane terhadap kinerja turbin Cross-flow. Metodeyang digunakan dalam penelitian ini melalui 6 (enam) tahapan yaitu studi pustaka, observasi,desain turbin, pembuatan tuirbin, pengujian turbin dan analisis hasil pengujian. Variasi bukaanguide vane yaitu bukaan 20%, 40%, 60% dan 80%. Dari hasil penelitian diketahui bahwabukaan guide vane berpengarh terhadap kinerja turbin Cross-flow. Efisiensi tertinggi turbinCross-flow diperoleh dengan bukaan guide vane 80% yaitu sebesar 40%, sedangkan untukbukaan 60% efisiensi turbin sebesar 39%, untuk bukaan 40% efisiensi turbin sebesar 37% danbukaan 20 efisaiensi turbin sebesar 35%.Kata Kunci: Guide Vane , Kinerja, Turbin Cross-flow
PENGARUH PENDINGINAN CEPAT TERHADAP LAJU KOROSI HASIL PENGELASAN BAJA AISI 1045
Authors: Yuono Lukito Dwi , Dharma Untung Surya
Published: December 2017

Pada beberapa kasus, sering ditemukan kerusakan pada rangka kendaraan terutamamasalah korosi pada sambungan pengelasan. Masalah ini dapat membahayakan keselamatanpengendara karena korosi akan mengurangi kekuatan sambungan pada rangka tersebut.Tujuan dari penelitian ini adalah untuk mengetahui pengaruh pendinginan cepat terhadap lajukorosi hasil pengelasan baja karbon sedang (baja AISI 1045). Penelitian ini menggunakanmetode eksperimen nyata. Spesimen yang sudah disambung menggunakan las listrikdiberikan proses heat treatment yakni pendinginan dengan udara, pendinginan dengan oli,dan pendinginan dengan air. Kemudian seluruh spesimen dilakukan uji korosi selama 8 jam.Hasil dari data dan perhitungan laju korosi menunjukkan bahwa nilai laju korosi paling tinggiadalah pengelasan dengan media pendingin udara yaitu senilai 31508.1 mpy atau 31.5081inch/tahun, nilai laju korosi terendah adalah pengelasan dengan media pendingin air yaitu10228.71 mpy atau 10.22871 inch/tahun. Hal ini mengindikasikan bahwa PWHT (postwelding heat threatment) memiliki pengaruh besar dalam usaha penghambatan laju korosi.Kata kunci: Baja AISI 1045, korosi, media pendingin, SMAW.
PENGARUH JARAK ANTAR PIPA PADA KOLEKTOR TERHADAP PANAS YANG DIHASILKAN SOLAR WATER HEATER (SWH)
Authors: Susanto Helmi , Irawan Dwi
Published: December 2017

Energi surya yang sampai kepermukaan bumi dapat dikonversi menjadi energi panasdengan menggunakan kolektor surya. Didalam kolektor terdapat beberapa komponendiantaranya pipa pemanas sebagai media untuk mengalirkan air kedalam tangki penyimpanan.Ada beberapa faktor yang mempengaruhi kinerja kolektor surya diantaranya yaitu jarakataupun diameter belokan. Penelitian ini bertujuan untuk mengetahui perpindahan panas yangterjadi pada kolektor pemanas air tenaga surya dengan variasi jarak antar pipa tembaga sertamengetahui efisiensi perubahan panas yang terjadi dan mengetahui berapakah ukuran pipapemanas yang tepat pada pemanas air tenaga surya. Metode penelitiannya dilakukan denganbeberapa tahap yaitu studi pustaka, pembuatan alat, pengujian dan analisis hasil penelitian.Variasi jarak pipa tembaga yaitu 5 cm, 7 cm dan 9 cm. Dari hasil penelitian diperoleh bahwaperpindahan panas konveksi yang paling besar dengan jarak pipa tembaga 5 cm yaitu 549,73watt pada intensitas matahari tertinggi 723,33 W/m2 dengan efisiensi perubahan suhu sebesar33,33%. Sedangkan dengan jarak pipa 7 cm perpindahan panas konveksi yang terjadi sebesar256,33 watt pada intensitas tertinggi mencapai 758,67 W/m2 dengan efisiensi perubahan suhusebesar 21,98%. Dan jarak pipa 9 cm perpindahan panas konveksi yang terjadi sebesar 101,74watt pada intensitas matahari tertinggi 813,33 W/m2 dengan efisiensi perubahan suhu sebesar13,33%.Kata Kunci: Jarak Pipa, Kolektor Surya, Solar Water Heater.
Heterópodos (Gastropoda: Pterotracheoidea) identificados en un transecto costa-océano en el Pacífico colombiano
Authors: Moreno-Alcántara María , Giraldo López Alan , Aceves-Medina Gerardo
Published: December 2017

With the purpose of establishing the taxonomic composition of the heteropod assembly that inhabits the Colombian Pacific,zooplankton samples were collected in March 2014 along a coastal- offshore transect and later analyzed. Twelve speciesbelonging to three families and three genera were identified. Atlanta lesuerii was the most abundant species in the study area. In addition, A. frontieri, A. oligogyra, A. inflata and A. plana were recorded for the first time in the South American Pacific, as well as A. helicinoidea in the Colombian Pacific. This work contributes in a significant way in the knowledge of the heteropod molluscs of the Colombian Pacific.
EL VÍNCULO DE LA EDUCACIÓN SUPERIOR CON EL CAMBIO DE LA MATRIZ PRODUCTIVA EN EL ECUADOR
Authors: Menéndez Erick , Cevallos Cevallos Doris
Published: December 2017

El documento pone en evidencia una realidad en Ecuador a partir de la vigencia de la Constitución del 2008, el enfoque de la matriz productiva como generadora de cambio en el desarrollo del país, la cual está directamente vinculada a la educación superior, de acuerdo al enfoque que se tiene, justamente se pretende que las universidades conocidas como emblemáticas puedan dar aquellas respuestas a la grandes áreas requeridas de acuerdo a SENPLADES. Se pretende evidenciar la relación y la importancia de la matriz productiva con la educación superior con la promulgación de la nueva Constitución.
MODELO DE COMPETENCIAS PROFESIONALES ESPECÍFICAS PARA LA FORMACIÓN DE LOS ESPECIALISTAS EN MEDICINA GENERAL INTEGRAL.
Authors: Ramos Hernández Rosalina , Díaz Alejandro Antuan Díaz , Izquierdo Norberto Valcárcel
Published: December 2017

La formación por competencias en la educación de postgrado, se revela desde la connotación mundial relacionada con la calidad de la preparación de los profesionales del sector de la salud. En la formación del médico general integral; definir las competencias profesionales específicas a desarrollar, es importante por su relación con la calidad del desempeño profesional de este especialista y de la atención médica que brinda a la población, con el objetivo de diseñar un modelo  de competencias profesionales específicas para la formación del especialista en Medicina General Integral (MGI), que mejore su desempeño profesional,se realizó una investigación de desarrollo tecnológico, a través de la sistematización, el análisis documental, el estudio histórico lógico y la modelación  realizada, se elaboró un Modelo de competencias profesionales específicas a desarrollar en la formación del especialista en Medicina General Integral identificadas como comunicativa; clínica; epidemiológica; en educación en salud; docente; investigativa y gerencial que posibilitan mejoría en el desempeño profesional y humano de estos especialistas. La investigación enriquece a las Ciencias Pedagógicas, en general, y a la Teoría de la Educación Avanzada, en particular, con la identificación de regularidades que se establecen en las relaciones entre la organización académica de los programas de especialidades a partir de la adquisición y desarrollo de las competencias profesionales específicas y el desempeño profesional de los estudiantes de postgrado, que favorece la integración entre la Universidad y la Sociedad, desde una concepción desarrolladora y humanista que involucra al individuo con la formación que realiza de forma activa.