bluuebunny/crossref_metadata_2025 huggingface dataset:
Comparativo entre uma decomposição média local composta otimizada e uma
decomposição média local melhorada em sua aplicação para diagnóstico de
falha em máquinas
Authors: Silva WTFD , Borges FDDM , Almeida IO
Published: June 2019

Técnicas de processamento de sinais vem sendo desenvolvidas para extração de informação de uma grande variedade de problema interdisciplinares. Neste contexto, a decomposição média local (LMD) fora desenvolvida para extração de informações de sinais altamente complexos e modulados. Entretanto, sua performance pode levar a alguns problemas na separação do sinal, como a mixagem de modos. Dessa forma, duas novas técnicas baseadas na LMD foram implementadas recentemente e estudo acerca de sua efetividade em problemas reais ainda carecem de informações e dados. Sendo assim, esse trabalho propõe uma comparação entre esses diferentes algoritmos, executando estes para um mesmo sinal sintético e comparando parâmetros comumente utilizado para este fim, como o erro relativo médio quadrático e o tempo total de processamento. Também fora executado o processamento do sinal para um caso de análise de vibrações de um rolamento, sabidamente em estado de falha e verificado a acurácia dos métodos na separação destes dados e identificação da frequência característica de falha. O trabalho demonstra a notável semelhança entre os procedimentos, com leve superioridade da OELMD na decomposição dos sinais, porém com proibitivo tempo de processamento.
Fechadura eletrônica e Sistema de gerenciamento e controle de acesso
Authors: Cardoso TA , Santos CP
Published: June 2019

O artigo apresenta um sistema completo de gestão e controle do fluxo de pessoas nos ambientes controlados através de fechaduras eletrônicas, que possuem, como chave de acesso, cartões RFID (Radio-FrequencyIDentification), as quais restringem a entrada em um local às pessoas autorizadas, com o intuito de garantir ao gestor uma melhor administração e monitoramento de informações sobre as movimentações de seus subordinados na instituição ou empresa. O sistema registra todas as operações da fechadura em um banco de dados, estruturado em MySQL, e é manipulado no front-end por meio de um site, desenvolvido através do sistema Wordpress, que apresenta ao usuário administrador o histórico de acessos, disponibilizando relatórios completos que possibilitam a otimização da administração das informações de acesso. Deste modo, a implementação do complexo tecnológico projetado garante a segurança do local e facilita o controle da circulação no ambiente, visto que, restringe a entrada no local às pessoas autorizados, simplifica a autorização aos locais, dado que, um cartão pode ter acesso a diversas fechaduras, e registra as operações em um banco de dados capacitando a consulta detalhada de todos os usuários.
Measurement of Reliability of Test Instruments Through Management of Education and Psychology
Authors: Royadi Dedi , Mohd Nawi Mohd Nasrun , Supyaningsih​ Fitria
Published: June 2019

At this time in the world of work or in job management workers are required to be able to solve problems that mean that in education and psychology management must be able to build or develop instruments in all fields of management. The development of measurement instruments in the field of psychology and education many assume the use of unidimensional measurements, which conceptually formulated that there is one type of ability factor, personality, character, and attitude measured by one measurement instrument. This study aims to allow readers to understand the notions of reliability, reliability of learning outcomes tests, general models of reliability, simple methods of estimating reliability, retesting methods, parallel methods, halves, moment product equations, Flanagan equations, Rulon equations, reliability coefficients , and standard measurement errors. In order for this management research to take place smoothly, the researcher uses the literature study method as his research method.

Keywords: Educational management, Measurement Instruments, Reliability
Management of Deciding Decision Making Final Project Advisor in Optimizing Learning
Authors: Kamil Mustofa , Rianto Joko , Suprayogi Danang
Published: June 2019

In the management of learning in preparing the final assignment has become an obligation in each university. So, the existence of a final assignment supervisor is very important to help students complete their final assignments. Without the final assignment supervisor can lead to unclear and a directed research in accordance with the provisions of learning management, in this study discusses the role of lecturers in conducting final assignments in both thesis and thesis, lecturers as facilitators start the final assignment, lecturers as final project supervisors, lecturers as a final assignment exam preparation supervisor, stress in preparing the final assignment, communication of students with supervisors, choosing supervisors, consulting techniques with counselors, obstacles during the guidance of the preparation of the final assignment report. With the hope of this research students can choose a mentor where they must master the fields that are in accordance with your final assignment and with the provisions of learning management in Higher Education, and choose a mentor who has enough time to guide you, and a cooperative and communicative guide.
Factores que influyen en el reingreso hospitalario del adulto mayor: resultados de un plan piloto
Authors: Altamirano Llinin Jessica Daniela , Orozco Reyes Milagros
Published: June 2019

La falta de conocimiento del autocuidado en el adulto mayor es uno de los factores principales de un reingreso hospitalario, la investigación determinar los factores que influyen en el reingreso hospitalario del adulto mayor. Para este estudio se implementó la investigación cuantitativa, de origen transversal, se empleó la investigación descriptiva. La población fue de 120 pacientes siendo estos adultos mayores, aplicando un plan piloto de 20 pacientes comprendidos en el año 2018, como instrumento se utilizó una ficha de observación que consta de 4 factores los cuales fueron validados por expertos en la salud comprobando de esta manera su validez y coherencia.

En el análisis de la ficha de observación sobresalió la falta de conocimiento de autocuidado del adulto mayor 58%, la diabetes mellitus I como enfermedad más frecuente en el reingreso con el 48%, seguido de estado clínico grave 27% y finalmente como mayor diagnóstico de reingreso la recurrencia de la enfermedad con el 44%, concluyendo que la falta de conocimiento sobre una guía de autocuidado en adulto mayor dio como mayor porcentaje al momento de darse un reingreso hospitalario.
Entorno educativo y aprendizaje, estrategias de estudio en el idioma ingles
Authors: Colcha Guashpa Esthela Isabel , Herrera Andrade Zoila Victoria , Barragán Murillo Rocío de los Ángeles , Guano Daniela Fernanda , Salazar Calderón Edison Hernán
Published: June 2019

El proceso de aprendizaje del inglés como lengua extranjera generalmente se da dentro del aula de clase, lugar en el cual se realizan diferentes actividades de tipo controladas, pese a que este proceso se da en su mayor parte en el ámbito educativo, los estudiantes pueden alcanzar un alto grado de desarrollo del idioma inglés, al tener la oportunidad de aprender durante su formación, y escasamente en otro tipo de actividades, sin embargo limita en ciertas ocasiones a que el estudiante pueda finalmente ser capaz de comunicarse en este idioma, dado que se reducen el número de veces de la práctica del idioma fuera del aula de clases.  Pese a este limitante el aprendizaje del idioma inglés, se relaciona con la revisión de bibliografía básica que se encuentra en inglés de las distintas carreras, así como la información expuesta en internet; constituyéndose la enseñanza universitaria en el último peldaño hacia la profesionalización, relevancia que se da desde el punto de vista escolar para que los estudiantes alcancen un correcto dominio de este idioma. La importancia que tiene el aprendizaje del inglés como lengua extranjera es vital para el desempeño correcto del proceso de enseñanza para una educación de calidad, accesible a todos; delineado para apoyar a los estudiantes contribuyendo a su bienestar en el que pueden alcanzar su pleno potencial, en donde está determinada por varios factores físicos, psicológicos y sociales. Cuando hablamos de diseñar el entorno educativo, no sólo consiste en organizar el espacio, sino también en diseñar cuidadosamente el tiempo para las diferentes actividades, los materiales que vamos a utilizar, las características de nuestros estudiantes considerando sus edades y que las actividades que planteemos no varíen significativamente de su entorno familiar y cultural, así como sus características psicoevolutivas.
Diagnóstico energético del sistema de calentamiento de agua en la piscina del Complejo de Natación Carlos Costales de la ciudad de Riobamba. Propuesta de alternativas de solución
Authors: Moreno Pinduisaca Ligia Elena , Palacios Almache Juan Carlos , Buenaño Moyano Luis Fernando , Barrera Cárdenas Olga Beatriz
Published: June 2019

En la Piscina del complejo “Carlos Costales” se realizó un diagnóstico energético del sistema de calentamiento de agua que utiliza una caldera a diesel. Las pérdidas de calor calculadas son de 84,573 kW en promedio, para calentar el agua de la piscina de 6H00 a 10H30 la caldera entrega 103,700 kW y de 10H30 a 19H00 94,016 kW, con un rendimiento de la caldera de 58,9 % y 53,4% respectivamente, al año con este sistema se producen 131 206 toneladas de CO2. El consumo promedio de combustible es de 3,2 gal/h lo que representa un gasto para el Estado de $ 21.027,79 al año. Para satisfacer las necesidades de los bañistas con una temperatura de 28 ºC ideal para el entrenamiento de niños desde los 6 años de edad se plantea un sistema híbrido con cuatro horas de funcionamiento de la caldera y 93 paneles solares tipo HC – 50, anualmente se generará un ahorro en el gasto de combustible de $14.797,77 y el TIR calculado para esta opción es de 19,4 % que se considera un proyecto factible, se reducirá al año la emisión de 131,20 a 38,87 toneladas de CO2 que representa el 70 % menos de contaminación ambiental
Las TICs en los procesos de enseñanza y aprendizaje
Authors: Gavilanes Sagñay Marco Antonio , Yanza Chavez Willian Geovanny , Inca Falconi Alex Fabián , Torres Guananga Germán Patricio , Sánchez Chávez Roberto Fabian
Published: June 2019

Esta investigación tuvo como objetivo analizar las TICs en el proceso de enseñanza‐aprendizaje de la universidad, es así que se desarrolla un estudio sobre la valoración que hacen los docentes de una universidad de Ecuador sobre las ventajas del uso de las TICs, además se identifican las estrategias utilizadas por ellos en el campus virtual. La metodología utiliza fue bibliográfica, documental y descriptiva. Entre los resultados relevantes, se observa que el 100% de los docentes dan prioridad al uso de programas de presentación de diapositivas, y tan solo un 66% utiliza la plataforma Virtual, por otro lado, se advierte que el 54% de los docentes participó en dos cursos de capacitación al año. Si bien revela un interés moderado de los docentes por la capacitación técnica, el desarrollo acelerado de las tecnologías educativas demanda una mayor dedicación a la observada. Los resultados permiten concluir que existe una predisposición de uso de técnicas y herramientas de aprendizaje, acorde a la intención de provocar la creatividad y la innovación en el ejercicio formativo, que se relaciona con las áreas disciplinares del desempeño docente. Se observa una mayor propensión a explorar las herramientas tecnológicas en aquellas disciplinas que invierten esfuerzos en la capacitación docente y en la incorporación de estas tecnologías.
Stability and Adaptability Analysis of BRRI Developed Aus Varieties in Different Locations of Bangladesh
Authors: Rahman NMF , Mamun MAA , Ahmed R , Hossain MI , Qayum MA , Aziz MA , Hossain MA , Kabir MS
Published: June 2019

The genotype by environment (G×E) interactions can be observed by differential genotypic responses to varied environmental conditions. Its effect is to limit the accuracy of yield estimates and complicate the identification of specific genotypes for specific environments. The frequently used model additive main effects and multiplicative interaction (AMMI) were used in this study to identify high yielding Aus rice varieties having wide adaptation and or specific adaptation to environment. Multi environment trials on eight Aus rice varieties were conducted at four environmental conditions in 2016. Genotype by environment (G×E) interactions contribution was much higher than the genotypic effect and environmental effect on grain yield. The genotypes BRRI dhan65, BRRI dhan48 and BRRI dhan43 display higher adaptability and stability. Therefore they are included in the study and recommended to be used in all environments. The variety BRRI dhan65 was identified as the most suitable variety with wider adaptability in the region Kushtia followed by BRRI dhan48 and BRRI dhan43. Latest varieties performed better than the oldest ones based on grain yield and could be replaced through ensuring the supply chain of new promising varieties of that locality.

Bangladesh Rice j. 2018, 22(1): 65-72
RELATO DE EXPERIÊNCIA NO CAMPO DE PESQUISA: análise do planejamento e aplicação de uma ação informacional
Authors: Farias Maria Giovanna Guedes
Published: June 2019

Trata da trajetória de atuação do pesquisador no campo de pesquisa empírica, visando mostrar como foi construída e aplicada uma ação de informação, a partir do desejo e necessidade de moradores de uma comunidade urbana, os quais desejavam uma preparação para o mercado de trabalho. O objetivo é apresentar a caracterização da amostra, o olhar do pesquisador e os fluxos de comunicação delineados ao aplicar esta ação, além dos recursos didáticos utilizados. Ressalta-se que esta comunicação é um recorte dos resultados de pesquisa de uma tese de doutorado em Ciência da Informação O percurso metodológico para construção capacitação foi inspirado pela teoria de aprendizagem e de processamento de informação de Gagné (1980), e durante a aplicação utilizou-se o diário de campo para anotar todas as impressões e expressões dos moradores participantes da ação. Os resultados demonstram que em um ambiente complexo como uma comunidade é preciso respeitar e entender a cultura do outro. Conclui-se que levar instrumentos prontos a serem utilizados nesta realidade e tentar moldar os seres que a compõem, não permitiria coletar a riqueza de informações que podem ser coletadas, observar comportamentos e posturas. Além isso, é fundamental trabalhar com base em um processo de ensino-aprendizagem pautado em uma educação progressista, não autoritária, dialógica e interacionista.
UM MAPA DA CIÊNCIA DA INFORMAÇÃO: história, subáreas e paradigmas
Authors: Araújo Carlos Alberto Ávila
Published: June 2019

O objetivo do artigo é fazer dialogar, numa única linha argumentativa, diferentes dimensões da discussão epistemológica sobre a ciência da informação: sua evolução histórica, as distintas subáreas que a compõem e a própria evolução do conceito de informação na área. Parte-se, assim, dos fatos que levaram à origem do campo e sua consolidação nas décadas de 1960 e 1970. A seguir, analisa-se a virada cognitiva nas décadas de 1980 e 1990 e o impacto da noção de “conhecimento” nas distintas subáreas. Logo após, são apresentadas as teorias contemporâneas que compõem a virada sócio-cultural do século XXI. Como saldo dessa evolução, sistematiza-se seis dimensões do conceito de informação. Por fim, são destacados alguns desafios contemporâneos colocados para a área
EDITORIAL
Authors: Nunes Martha Suzana Cabral , Carvalho Telma de
Published: June 2019

É com grande satisfação que a revista ConCI - Convergências em Ciência da Informação, lança seu primeiro número pelo programa de Pós-Graduação em Ciência da Informação do Mestrado Profissional em Gestão da Informação e do Conhecimento da Universidade Federal de Sergipe.
ACTUACIÓN PROFESIONAL EN AMBIENTES DIGITALES Y FORMACIÓN EN CIENCIA DE LA INFORMACIÓN
Authors: Moreiro-González José Antonio
Published: June 2019

La renovación técnica y funcional consecuente a las tecnologías digitales han cambiado las destrezas, la formación y la capacitación con las que se realizan las actividades profesionales. Se revisa, en el dominio de Ciencia de la Información, la adaptación y actualización de los cursos y métodos de enseñanza a la transformación, complejidad y especialización laborales. Desde los cambios sociales causados por el acceso a las tecnologías digitales, se consideran, como planteamiento general, las competencias y destrezas propias de Ciencia de la Información en relación con la formación y la capacitación profesional. Luego, se precisan los rasgos que singularizan la educación en Ciencia de la Información, tanto en su participación de carácter transversal o interdisciplinar como en su composición de marcado acento transdisciplinar. Para acabar atendiendo a la función de la enseñanza a distancia en Ciencia de la Información, en especial desde su conveniente relación con el aprendizaje permanente y la actualización técnica.
A FORMAÇÃO DO ARQUIVISTA GESTOR NO CURSO DE ARQUIVOLOGIA DA UFPB
Authors: Braz Márcia Ivo , Feitoza Rayan de Brito Feitoza , Nascimento Felipe Mozart
Published: June 2019

As atividades de gestão são essenciais para o funcionamento de uma Unidade de Informação. Tomando como base os arquivos, é necessário que os Arquivistas contemplem um perfil de gestor para atuar com atividades de planejamento, organização, controle e direção para atender as necessidades dos usuários. Nesta perspectiva, este trabalho busca analisar o currículo do curso de Arquivologia da Universidade Federal daParaíba (UFPB), por meio do Projeto Político Pedagógico (PPP), com o intuito de refletirmos e compreendermos como vem sendo feita a formação dos Arquivistas enquanto gestor nos ambientes de trabalho. Quanto aos procedimentos metodológicos, a pesquisa é do tipo documental, se caracterizando com descritivo-interpretativo por buscar descrever e compreender as características das áreas curriculares compostas no PPP; a área curricular que mais se aproxima e dialoga com a gestão e por fim, disciplinas voltadas para a gestão, no curso de Arquivologia, utilizando-se da técnica de categorização para analisar osdados. Os resultados permitem inferir que o curso de Arquivologia da UFPB está estruturado em seis áreas curriculares, dentre estas, destaca-se a área de Gerenciamento em Unidade de Informação que agrega em sua ementa um conjunto de temáticas e consequentemente disciplinas voltadas à gestão nos ambientes dos arquivos nas organizações públicas, privadas, mistas, dentre outros.
O USO DE JOGOS DE EMPRESAS PARA EVIDENCIAR A COMPETÊNCIA EM INFORMAÇÃO
Authors: Zuccari Patrícia
Published: June 2019

Os gestores de uma organização devem tomar decisões estratégicas e para isso devem desenvolver a competência em informação, ou seja, eles devem saber onde e como acessar uma informação importante para o negócio. Da mesma forma o gestor precisa entender como analisar e utilizar essas informações. Com o advento da tecnologia há uma quantidade infinita de informações disponíveis, no entanto o gestor precisa reconhecer quais informações são relevantes, assim ele será mais efetivo e assertivo em suas decisões. O objetivo desse trabalho é comparar o acesso e uso da informação para construção do conhecimento e tomada de decisão por parte desses gestores e a sua relação com o perfil empreendedor, através de um jogo de empresa que foi elaborada com esse propósito. O trabalho apresenta resultados e reflexões teóricas derivadas de pesquisa exploratória, qualitativa e de natureza bibliográfica sobre a competência em informação e jogos de empresa. Após a aplicação do jogo, foi possível coletar evidências da competência em informação nos usuários do jogo, porém foram identificadas lacunas quanto a busca,  localização e identificação da informação. Essas mesmas lacunas foram minimizadas a medida que o passar das jogadas, podendo inferir que a competência em informação pode ser desenvolvida entre os usuários.
A MEDIAÇÃO DE LEITURA LITERÁRIA AOS SURDOS UNIVERSITÁRIOS POR MEIO DOS QUADRINHOS
Authors: Bari Valéria Aparecida , Ferreira Shirley dos Santos , Cortes Vanderlea Nóbrega Azevedo
Published: June 2019

A presente comunicação descreve projeto de pesquisa em andamento, que tem como objetivo a verificação do potencial de mediação da leitura literária para universitários surdos, por meio da utilização do recurso já disponível e acessível das adaptações na linguagem das histórias em quadrinhos. A contribuição esperada no campo da Ciência da Informação se refere às teorias e práticas da mediação de leitura e formação do leitor em diferentes ambientes sociais e unidades de informação, como praticada pelos profissionais do ramo, a saber: bibliotecários, documentalistas, gestores da informação e congêneres. De modo axial, ou seja, dentro do mesmo eixo de atuação, beneficiará professores, educadores, docentes, intérpretes, familiares e outros atores sociais diretamente atuantes na educação formal, informal e não-formal de surdos. O método utilizado será o hipotético-dedutivo, sob os princípios de Popper. A abordagem de pesquisa será antropológica e o trabalho de campo obedecerá roteiro baseado em pesquisa-ação, com adoção de instrumentos de observação quali-quantitativos e registros etnográficos concomitantes às observações em campo (fotografias e, se possível, registros fílmicos). A análise utilizada será de caráter misto, no desenvolvimento de estudo correlacional de variáveis independentes sob manipulação ao longo do período de observação. O desenho do experimento aplicável ao grupo-teste (universitários surdos) se propõe a trabalhar em nível individual e grupal, mediante a expressão de escalas de categorias teóricas previamente coletadas na literatura especializada, medindo níveis de satisfação, assim como a resposta às questões abertas, para a prospecção de indicadores em metodologia observacional pós-indexada. Verificou-se que o desenvolvimento dessa pesquisa e de outras congêneres se articula com os esforços em nível nacional e mundial no século XXI, pela disseminação da informação e do conhecimento, como fator de progresso social científico, melhoria da qualidade de vida e concretização do potencial individual e coletivo dos discentes brasileiros integrados ao ensino superior, mediante suas particularidades.
Evaluation of Cowpea (Vigna unguiculata) Genotypes for Fodder Yield and Resistance against Leaf Spot (Pseudocercospora cruenta)
Authors: Hussain Ahmad , Gondal Muhammad R. , Hayat Sikander , Yasin Syed I , Hanif Muhammad S , Nabi Ghulam , Akhtar Muhammad S
Published: June 2019

Cowpea, Vigna unguiculata (L.), is an important grain legume grown in the tropics and constitutes a valuable source of protein in the diets of millions of people. Some abiotic and biotic stresses adversely affect its productivity. Among biotic factors, Pseudocercospora leaf spot is a widespread disease claim significant losses to the crop.  Present studies consisted of two experiments, i.e., the pot experiment was carried out under glasshouse conditions and another experiment was conducted under field conditions. Eight local cowpea genotypes viz., CP-383, CP-162, CP-145, CP-271, CP-219, IT84-552, SS-92 and IT82E-715 were evaluated for yield parameters, green fodder yield and their reaction against Cercospora leaf spot disease compared with the commercially approved variety ‘Rawan 2003' for two ‘Kharif’ seasons. The lowest disease index (2.76 %) was recorded in CP-383 followed by statistically similar resistance shown by check variety, CP 2003 (4.07%) and CP-219 (4.53%). The highest susceptibility with disease index (18.32%) was exhibited by IT84-552. The genotypes differed significantly on the basis of length, thickness and branching of vines, number and size of their leaves. The accession CP-383 out-performed the other accession lines in green fodder yield during both the years and can be ranked as the best gene resources for future breeding programmes.
Evaluation of Maize (Zea mays L.) Half Sib Recurrent Families for Expected Response and Percent Gain Per Cycle
Authors: Sohail Amir , Asad Muhammad , Aziz Abdullah , Hussain Quaid , Haleem Abdul , Maryam Mahrukh , Sheikh Fawad , Rahman Zia Ur , Bashir Faisal
Published: June 2019

Recurrent Selection (RS) or reselection generation after generation is a vital selection scheme for improving the physio-morphic traits and grain yield in maize populations. The objective of the present research was to determine the response of recurrent selection in CIMMYT maize population CZP-132011 for physio-morphic traits and to estimate selection differential, heritability, expected response and percent gain cycle-1 among the half sib recurrent families for morphological traits and grain yield.  Sixty four half sib recurrent families were evaluated in 8×8 lattice square design with two replications at Cereal Crops Research Institute (CCRI), Pirsabak during 2017. Results showed highly significant differences among the half sib families for all the studied traits. Selection differential values were negative for days to tasseling (-3.00), anthesis (-3.08), silking (-3.10), anthesis silking interval (-1.14), plant height (-5.07) and ear height (-7.73). High heritability values (h2 ˃ 0.60) were recorded for all traits except plant height (0.55) which exhibited moderate heritability. Based on broad sense heritability and selection differential, expected response were observed negative for days to tasseling (-2.39), anthesis (-2.56), silking (-2.64), anthesis silking interval (-0.79), plant height (-2.81) and ear height (-5.22). After one cycle of recurrent selection using half sib families, the gain cycle-1 values were negative for (-0.39), anthesis (-0.47), silking (-1.44), anthesis silking interval (-3.17), plant height (-2.34) and ear height (-4.90). Based on the findings of current research it could be concluded that recurrent selection method was found effective in improving the CIMMYT maize source population CZP-132011 for physio-morphic traits.
A escola e sua interface com a luta pelo território: conquista do Povo Puruborá, RO
Authors: Ramos Anatália Daiane de Oliveira , Zibetti Marli Lúcia Tonatto , Caetano Edson
Published: June 2019

Este texto tem como objetivo analisar a relação entre a conquista da escola indígena e a (re)demarcação do Território Puruborá. Trata-se de produto de uma pesquisa de mestrado, do tipo etnográfico, realizada no município de Seringueiras, RO. Os dados foram produzidos por meio de análise documental, observação participante e entrevistas. A análise se deu por meio da triangulação dos dados, em articulação com o referencial teórico utilizado. Os resultados indicam que a conquista da escola, neste contexto, está atrelada às demais lutas desse povo indígena e decorre do histórico processo de sua organização em torno da reivindicação da (re)demarcação do seu território tradicional.
O Patrimônio Cultural e a História Pública: observações sobre os embates contemporâneos
Authors: Bauer Leticia Brandt , Borges Viviane Trindade
Published: June 2019

Frente a processos muitas vezes cruéis de imposição daquilo que deve ser preservado e rememorado, pretendemos transitar por exemplos que subvertem a ordem estabelecida pelo campo do patrimônio, problematizando o patrimônio cultural à luz da História Pública. A análise de casos ocorridos no Brasil nos últimos cinco anos permite ilustrar como preservar e despertar o sentimento de identidade aparecem como premissas inerentes ao que foi instituído como patrimônio cultural. Analisaremos as instabilidades dentro desta construção, procurando problematizar atos cidadãos que escapam ao controle do poder público, atualizam os monumentos e instauram debates fundamentais para pensar a quem serve o patrimônio.
A Hybrid Autoencoder Network for Unsupervised Image Clustering
Authors: Chen Pei-Yin , Huang Jih-Jeng
Published: June 2019

Image clustering involves the process of mapping an archive image into a cluster such that the set of clusters has the same information. It is an important field of machine learning and computer vision. While traditional clustering methods, such as k-means or the agglomerative clustering method, have been widely used for the task of clustering, it is difficult for them to handle image data due to having no predefined distance metrics and high dimensionality. Recently, deep unsupervised feature learning methods, such as the autoencoder (AE), have been employed for image clustering with great success. However, each model has its specialty and advantages for image clustering. Hence, we combine three AE-based models—the convolutional autoencoder (CAE), adversarial autoencoder (AAE), and stacked autoencoder (SAE)—to form a hybrid autoencoder (BAE) model for image clustering. The MNIST and CIFAR-10 datasets are used to test the result of the proposed models and compare the results with others. The results of the clustering criteria indicate that the proposed models outperform others in the numerical experiment.
Hybrid Metal/Composite Lattice Structures: Design for Additive Manufacturing
Authors: Di Caprio Francesco , Acanfora Valerio , Franchitti Stefania , Sellitto Andrea , Riccio Aniello
Published: June 2019

This paper introduces a numerical tool developed for the design and optimization of axial-symmetrical hybrid composite/metal structures. It is assumed that the defined structures are produced by means of two different processes: Additive Layer Manufacturing (ALM) for the metallic parts and Filament Winding (FW) for the composite parts. The defined optimization procedure involves two specific software: ANSYS and ModeFrontier. The former is dedicated to the production of the geometrical and FE models, to the structural analysis, and to the post-process, focusing on the definition of the Unit Cells for the modelling of the metal part. The latter is dedicated to the definition of the best design set and thus to the optimization flow management. The core of the developed numerical procedure is the routine based on the Ansys Parametric Design Language (APDL), which allows an automatic generation of any geometrical model defined by a generic design set. The developed procedure is able to choose the best design, in terms of structural performance, changing the lattice metallic parameters (number of unit cells and their topology) and the composite parameters (number of plies and their orientation). The introduced numerical tool has been used to design several hybrid structures configurations. These configurations have been analysed in terms of mechanical behaviour under specific boundary conditions and compared to similar conventional metal structure.
Effect of Feeding Glycerin on Ruminal Environment and In Situ Degradability of Feedstuffs in Young Bulls
Authors: Madrid Josefa , Martínez Silvia , Villodre Carmen , López Miguel J. , Alcázar Juan , Orengo Juan , Ramis Guillermo , Hernández Fuensanta
Published: June 2019

This work studied the effect of feeding glycerin in bulls that were fed high levels of concentrate on the ruminal environment and in situ degradability of feedstuffs. Four ruminally cannulated young bulls were assigned to a 4 × 4 Latin square arrangement of treatments. The diets consisted of 15% barley straw and 85% concentrate in dry matter (DM). There were four different concentrates: without glycerin, and with 20, 40 or 80 g of glycerin per kg of DM. Each diet was offered for 24 days, the ruminal fluid was sampled to evaluate the ruminal metabolism and to determine the ruminal bacterial population by quantitative real-time polymerase chain reaction analysis, and the in situ degradability of six different feedstuffs was measured. The treatment with the highest level of glycerin provided the lower pH (p < 0.001), and the acetic/propionic molar ratio decreased (p < 0.001) as glycerin increased. The incorporation of glycerin in the diet did not affect the DNA copies/µL of the total bacteria, Butyrivibrio fibrisolvens and Butyrivibrio proteoclasticus (p > 0.05) in the DNA extract of rumen fluid, but at high levels increased Selenomonas ruminantium (p < 0.01). Very few effects of glycerin incorporation were found for the in situ degradability. In young bulls that were fed high levels of concentrate, glycerin at 20 or 40 g/kg of feed could be included without affecting the ruminal pH and raising the propionic acid, but at 80 g/kg the ruminal pH dropped, despite the increase of Selenomonas ruminantium.
Modeling of LMNA-Related Dilated Cardiomyopathy Using Human Induced Pluripotent Stem Cells
Authors: Shah Disheet , Virtanen Laura , Prajapati Chandra , Kiamehr Mostafa , Gullmets Josef , West Gun , Kreutzer Joose , Pekkanen-Mattila Mari , Heliö Tiina , Kallio Pasi , Taimen Pekka , Aalto-Setälä Katriina
Published: June 2019

Dilated cardiomyopathy (DCM) is one of the leading causes of heart failure and heart transplantation. A portion of familial DCM is due to mutations in the LMNA gene encoding the nuclear lamina proteins lamin A and C and without adequate treatment these patients have a poor prognosis. To get better insights into pathobiology behind this disease, we focused on modeling LMNA-related DCM using human induced pluripotent stem cell derived cardiomyocytes (hiPSC-CM). Primary skin fibroblasts from DCM patients carrying the most prevalent Finnish founder mutation (p.S143P) in LMNA were reprogrammed into hiPSCs and further differentiated into cardiomyocytes (CMs). The cellular structure, functionality as well as gene and protein expression were assessed in detail. While mutant hiPSC-CMs presented virtually normal sarcomere structure under normoxia, dramatic sarcomere damage and an increased sensitivity to cellular stress was observed after hypoxia. A detailed electrophysiological evaluation revealed bradyarrhythmia and increased occurrence of arrhythmias in mutant hiPSC-CMs on β-adrenergic stimulation. Mutant hiPSC-CMs also showed increased sensitivity to hypoxia on microelectrode array and altered Ca2+ dynamics. Taken together, p.S143P hiPSC-CM model mimics hallmarks of LMNA-related DCM and provides a useful tool to study the underlying cellular mechanisms of accelerated cardiac degeneration in this disease.
Rectifying Characteristics of Thermally Treated Mo/SiC Schottky Contact
Authors: Hong Jeongsoo , Kim Ki Hyun , Kim Kyung Hwan
Published: June 2019

The rectifying characteristics of a Mo/SiC Schottky contact fabricated by facing targets sputtering system were investigated through current–voltage measurement. The Schottky diode parameters were extracted from the forward current–voltage characteristic curve by the Cheung and Cheung method and the Norde method. The as-deposited Mo/SiC Schottky contacts possessed Schottky barrier heights of 1.17 and 1.22 eV, respectively. The Schottky barrier heights of the diodes were decreased to 1.01 and 0.91 eV after annealing at 400 °C for 30 min. The ideality factor was increased from 1.14 and 1.08 to 1.51 and 1.41, respectively. This implies the presence of non-ideal behaviors due to a current transport mechanism other than ideal thermionic emission, and the non-ideal behaviors increased as a result of excessive thermal annealing. In contrast, only a negligible change was observed in the crystallographic characteristics. This result suggests that the reason for the deviation from the ideal rectifying characteristics of the Mo/SiC Schottky contact through the annealing process was the variation in the current transport mechanism, including recombination, tunneling, and/or minority carrier injection.
Hand-Held Ultrasound Devices Compared with High-End Ultrasound Systems: A Systematic Review
Authors: Rykkje Alexander , Carlsen Jonathan Frederik , Nielsen Michael Bachmann
Published: June 2019

The aim of this study was to review the scientific literature available on the comparison of hand-held ultrasound devices with high-end systems for abdominal and pleural applications. PubMed, Embase, Web of Science and Cochrane were searched following Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Original research describing hand-held ultrasound devices compared with high-end systems was included and assessed using Quality Assessment of Diagnostic Accuracy Studies (QUADAS)-2. The search was limited to articles published since 1 January 2012. A total of 2486 articles were found and screened by title and abstract. A total of 16 articles were chosen for final review. All of the included articles showed good overall agreement between hand-held and high-end ultrasound systems. Strong correlations were found when evaluating ascites, hydronephrosis, pleural cavities, in detection of abdominal aortic aneurysms and for use with obstetric and gynaecological patients. Other articles found good agreement for cholelithiasis and for determining the best site for paracentesis. QUADAS-2 analysis suggested few risks of bias and almost no concerns regarding applicability. For distinct clinical questions, hand-held devices may be a valuable supplement to physical examination. However, evidence is inadequate, and more research is needed on the abdominal and pleural use of hand-held ultrasound with more standardised comparisons, using only blinded reviewers.
Energy-Efficient Multi-User Routing in a Software-Defined Multi-Hop Wireless Network
Authors: Liu Ziqi , Xu Gaochao , Liu Peng , Fu Xiaodong , Liu Yang
Published: June 2019

Software-defined networking (SDN) is an innovative architecture that designs a logical controller to manage and program the network based on the global view, providing more efficient management, better performance, and higher flexibility for the network. Therefore, applying the SDN concept in a multi-hop wireless network (MWN) has been proposed and extensively studied to overcome the challenges of MWN. In this paper, we propose an energy-efficient global routing algorithm for a software-defined multi-hop wireless network (SDMWN), which is able to get transmission paths for several users at the same time to minimize the global energy consumption with the premise of satisfying the QoS required by users. To this end, we firstly propose a Lagrange relaxation-based aggregated cost (LARAC) and K-Dijkstra combined algorithm to get the top K energy-minimum paths that satisfy the QoS in polynomial time. Then, we combine the alternative paths of each user obtained by K-LARAC and propose an improved genetic algorithm to solve the global routing strategy. The simulation results show that the proposed K-LARAC and genetic algorithm combined method has the ability to obtain an approximate optimal solution with lower time cost.
Special Issue: MicroRNA Regulation in Health and Disease
Authors: Subramanian Subbaya , Steer Clifford J.
Published: June 2019

Our understanding of non-coding RNA has significantly changed based on recent advances in genomics and molecular biology, and their role is recognized to include far more than a link between the sequence of DNA and synthesized proteins [...]
Diversity of “Ca. Micrarchaeota” in Two Distinct Types of Acidic Environments and Their Associations with Thermoplasmatales
Authors: Golyshina Olga V. , Bargiela Rafael , Toshchakov Stepan V. , Chernyh Nikolay A. , Ramayah Soshila , Korzhenkov Aleksei A. , Kublanov Ilya V. , Golyshin Peter N.
Published: June 2019

“Candidatus Micrarchaeota” are widely distributed in acidic environments; however, their cultivability and our understanding of their interactions with potential hosts are very limited. Their habitats were so far attributed with acidic sites, soils, peats, freshwater systems, and hypersaline mats. Using cultivation and culture-independent approaches (16S rRNA gene clonal libraries, high-throughput amplicon sequencing of V3-V4 region of 16S rRNA genes), we surveyed the occurrence of these archaea in geothermal areas on Kamchatka Peninsula and Kunashir Island and assessed their taxonomic diversity in relation with another type of low-pH environment, acid mine drainage stream (Wales, UK). We detected “Ca. Micrarchaeota” in thermophilic heterotrophic enrichment cultures of Kunashir and Kamchatka that appeared as two different phylotypes, namely “Ca. Mancarchaeum acidiphilum”-, and ARMAN-2-related, alongside their potential hosts, Cuniculiplasma spp. and other Thermoplasmatales archaea without defined taxonomic position. These clusters of “Ca. Micrarchaeota” together with three other groups were also present in mesophilic acid mine drainage community. Present work expands our knowledge on the diversity of “Ca. Micrarchaeota” in thermophilic and mesophilic acidic environments, suggests cultivability patterns of acidophilic archaea and establishes potential links between low-abundance species of thermophilic “Ca. Micrarchaeota” and certain Thermoplasmatales, such as Cuniculiplasma spp. in situ.
Integrative Analysis of Genomic and Clinical Data Reveals Intrinsic Characteristics of Bladder Urothelial Carcinoma Progression
Authors: Zhou Bin , Guo Rui
Published: June 2019

The progression of bladder cancer is generally a complex and dynamic process, involving a variety of biological factors. Here, we aimed to identify a set of survival-related genes that play an important role in the progression of bladder cancer and uncover their synergistic patterns. Based on the large-scale genomic profiling data and clinical information of 404 bladder cancer patients derived from The Cancer Genome Atlas (TCGA) database, we first discovered 1078 survival-related genes related to their survival states using univariate and multivariate Cox proportional hazardous regression. We then investigated the dynamic changes of the cooperative behaviors of these 1078 genes by analyzing their respective genomic features, including copy number variations, DNA methylations, somatic mutations, and microRNA regulatory networks. Our analyses showed that during the progression of bladder cancer, the biological disorder involving the identified survival-related genes can be reflected by multiple levels of abnormal gene regulation, ranging from genomic alteration to post-transcriptional dysregulation. In particular, the stage-specific co-expression networks of these genes undergo a series of structural variations. Our findings provide useful hints on understanding the underlying complex molecular mechanisms related to the evolution of bladder cancer and offer a new perspective on clinical diagnosis and treatment of bladder cancer.
Disaster Risk Resilience in Colima-Villa de Alvarez, Mexico: Application of the Resilience Index to Flash Flooding Events
Authors: Oliver Mendoza-Cano , Jesús López-de la Cruz , Ian Pattison , MA Martinez-Preciado , Manuel Uribe-Ramos Juan , R. M. Edwards , Ivan Ramírez-Lomelí Cesar , Pedro Rincón-Avalos , Jorge A Velazco-Cruz
Published: June 2019

Resilience is an indicator of the ability of systems to withstand disruption within acceptable degradation parameters and also their recovery time. It is essential for public policies to understand how the population reacts to a particular risk. In this paper we have performed a study that quantitatively measures perceptions of flooding and resilience to flooding in the city of Colima-Villa de Alvarez, Mexico 2018–2019. A resilience index has been applied to ten zones of the city. In our research we assessed risk perception through a city-wide survey with questions based on a Likert scale. An analysis was performed on public knowledge of the existing security protocols for floods and evaluated the public perception of the availability of critical services, such as fresh water, electricity, food, drainage, communications and public transport during a flash flood events. This research has identified populated low resilience zones that can be considered as priorities for resource and effort to mitigate floods and their impacts. The novel resilience index developed in this work can also be applied to other type of risk that humans face and used as a basis for discussions about urban resilience.
Aluminium in Brain Tissue in Epilepsy: A Case Report from Camelford
Authors: Mold Matthew , Cottle Jason , Exley Christopher
Published: June 2019

(1) Introduction: Human exposure to aluminium is a burgeoning problem. In 1988, the population of the Cornish town of Camelford was exposed to exceedingly high levels of aluminium in their potable water supply. Herein we provide evidence that aluminium played a role in the death of a Camelford resident following development of late-onset epilepsy. (2) Case summary: We have measured the aluminium content of brain tissue in this individual and demonstrated significant accumulations of aluminium in the hippocampus (4.35 (2.80) µg/g dry wt.) and the occipital lobe (2.22 (2.23) µg/g dry wt., mean, SD, n = 5), the latter being associated with abnormal calcifications. Aluminium-specific fluorescence microscopy confirmed the presence of aluminium in both of these tissues and made the consistent observation of aluminium-loaded glial cells in close proximity to aluminium-rich cell/neuronal debris. These observations support an inflammatory component in this case of late-onset epilepsy. Congo red failed to identify any amyloid deposits in any tissue while thioflavin S showed extensive extracellular and intracellular tau pathologies. (3) Discussion: We present the first data showing aluminium in brain tissue in epilepsy and suggest, in light of complementary evidence from scientific literature, the first evidence that aluminium played a role in the advent of this case of late-onset adult epilepsy.
Local Government Competition, Environmental Regulation Intensity and Regional Innovation Performance: An Empirical Investigation of Chinese Provinces
Authors: Deng Jinqian , Zhang Na , Ahmad Fayyaz , Draz Muhammad Umar
Published: June 2019

The aim of this paper is to examine the impact of local government competition and environmental regulation intensity on regional innovation performance and its regional heterogeneity. Based on the theoretical mechanism of the aforementioned variables, this study uses the Chinese provincial panel data from 2001 to 2016. We use the super-efficiency data envelopment analysis (SE-DEA) to evaluate regional innovation performance. To systematically examine the impact of local government competition and environmental regulation intensity on regional innovation performance, we build a panel date model using the feasible generalized least squares (FGLS) method. The results indicate that: the regional innovation performance can be significantly improved through technological spillover; local governments compete for foreign direct investment (FDI) to participate in regional innovative production. Moreover, improvements in environmental regulation intensity enhance regional innovation performance through the innovation compensation effect. Our results show that the local governments tend to choose lower environmental regulation intensity to compete for more FDI, which has an inhibitory effect on regional innovation performance. Furthermore, due to regional differences in factor endowments, economic reforms and economic development levels in Chinese provinces, there exists a significant regional consistency in the impact of local government competition and environmental regulation intensity on regional innovation performance. Therefore, institutional arrangements and incentive constraints must be adopted to enhance regional innovation performance as well as to guide and foster the mechanism of green innovation competition among local governments. At the same time, considering the regional heterogeneity of local government competition and environmental regulation intensity affecting regional innovation performance, policy makers should avoid the “one-size-fits-all” strategy of institutional arrangements.