bluuebunny/crossref_metadata_2025 huggingface dataset:
Abordagem baseada em um Agente para apoio à Gestão Integrada de Mudanças em Projetos
Authors: Mascarenhas Emanuela da Rocha , Veras Nécio de Lima , De Souza Leandro L. C. , Cortés Mariela Inés
Published: May 2021

Mudanças podem ocorrer ao longo do ciclo de vida de um projeto, causando impacto principalmente nos parâmetros de tempo, escopo e custo. Para minimizar os possíveis efeitos negativos e evitar o comprometimento do sucesso do projeto, faz-se necessário um gerenciamento contínuo das solicitações de mudanças, garantindo que somente mudanças devidamente analisadas e formalmente aprovadas sejam incorporadas na linha de base do projeto. Este trabalho objetiva apresentar uma abordagem baseada na tecnologia de agentes inteligentes para a automatização do gerenciamento de mudanças em projetos, auxiliando os gerentes de projetos no processo decisório de escolha das mudanças mais adequadas para serem aprovadas.
Utilização de Morfismo como Classificador para Verificação de Assinaturas Off-line
Authors: De Melo Lucindo , Zanchettin Cleber , Queiroz Anderson Lira , Alencar Gliner Dias
Published: May 2021

Este artigo oferece contribuições para o problema de verificação de assinaturas Off-line através da criação de um classificador baseado em morfismo utilizando uma técnica de triangulação de pontos. Esta técnica permite verificar a distância entre as assinaturas de uma determinada classe, objetivando discriminá-las como falsas ou genuínas. Neste artigo cinco cenários foram avaliados, em todos foram utilizadas assinaturas genuínas, falsificações simuladas e falsificações aleatórias. O quinto cenário é avaliado utilizando uma quantidade variável de pontos por experimento, no qual foi obtido o melhor resultado, uma taxa de Erro Global de 0,18.
Simulação de Transportes Sobre Trilhos Usando Autômatos Celulares para os Trens e Agentes Inteligentes para os Usuários
Authors: Morais Daniel M. G. , Digiampietri Luciano A.
Published: May 2021

Este artigo apresenta o desenvolvimento de um modelo para a simulação de sistemas de transporte sobre trilhos combinando autômatos celulares para representar os trens e agentes inteligentes para o comportamento do usuário. É apresentado também um framework para o desenvolvimento deste tipo de aplicação tendo em vista a conexão com outros modelos de simulação a fim de possibilitar a simulação de transporte multi-modal.
Implementação e Avaliação de Desempenho do LCS Paralelo em Cluster Multicore
Authors: Lauredo Alexandre , de Mesquita Joyce , Santiago Leandro , de Castro Maria Clicia , Sena Alexandre , Marzulo Leandro
Published: May 2021

Encontrar a maior subsequência comum (LCS) entre duas sequências é uma técnica muito utilizada para o alinhamento de sequências de DNA. Através da programação dinâmica se consegue a solução exata para o LCS, com complexidade de tempo e espaço O(m x n), onde m e n são os tamanhos das sequências. Algoritmos paralelos são fundamentais, tanto pelo tempo de processamento, quanto pela quantidade de memória necessária para processar sequências grandes. Logo, o objetivo deste trabalho é implementar e avaliar quatro versões paralelas do LCS para máquinas com memória distribuída, otimizando o paralelismo entre nós e também dentro de cada nó e buscando uso homogêneo de memória nos nós de processamento.
Explorando a Elasticidade Assíncrona em Nuvem para Aplicações Paralelas Iterativas
Authors: Rodrigues Vinicius , Costa Cristiano , Righi Rodrigo , Kreutz Diego
Published: May 2021

A elasticidade é sem dúvida uma das características mais marcantes da computação em nuvem. Na área de computação de alto desempenho, as iniciativas normalmente trabalham aplicações no estilo sacola-de-tarefas com necessidade de alterações no código para o tratamento da elasticidade. Nesse contexto, esse artigo apresenta o modelo de elasticidade chamado AutoElastic. AutoElastic atua em nível de middleware sobre aplicações paralelas iterativas, oferecendo provisionamento automático de recursos. Seu diferencial está no conceito de elasticidade assíncrona. Além do modelo, o presente artigo também apresenta um protótipo construído com OpenNebula e sua avaliação com uma aplicação iterativa, demonstrando ganhos em relação a tempo de até 14% e baixa intrusividade.
Implementações Híbridas MPI/OpenMP/OpenACC/CUDA do Método HOPMOC na Resolução da Equação de Convecção-Difusão
Authors: Cabral Frederico Luís , Osthoff Carla , Kischinhevsky Mauricio , Brandão Diego , Jasmim Leonardo
Published: May 2021

A utilização da computação paralela na resolução de certos problemas descritos por equações diferenciais parciais permite um ganho significativo no tempo de computação. Este trabalho apresenta algumas implementações paralelas do método HOPMOC em ambientes de máquinas multicore e manycore. O método HOPMOC utiliza conceitos do método das características modificado associado com método Hopscotch, o que lhe fornece características ideais para abordagens em computação paralela em ambientes tanto de memória distribuída como compartilhada. O MPI é utilizado para comunicação no ambiente distribuído, enquanto OpenMP permite o paralelismo no ambiente de memória compartilhada de cada nó do cluster. OpenACC e CUDA, permitem o paralelismo no ambiente manycore disponível em placas aceleradoras gráficas. Resultados preliminares demonstram ganhos significativos de eficiência das implementações híbridas apresentadas quando comparado com uma versão sequencial do HOPMOC. As implementações que usam placas gráficas (manycore), apresentam menor tempo de execução quando comparado com OpenMP (multicore), mas por outro lado, a relação speedup por quantidade de cores é melhor no ambiente multicore, sugerindo um melhor aproveitamento das unidades de execução (cores).
Sistema de Arquivos Distribuídos: Avaliação dos Volumes do GlusterFS em relação aos tipos de Workloads
Authors: Cordeiro Fábio Leandro , Martins Carlos Augusto
Published: May 2021

Com o crescimento da utilização de computadores e a gigante massa de dados gerada por diversas aplicações, aumenta a necessidade na melhoria do armazenamento desses dados. Isso é um desafio levando em consideração o maior crescimento da velocidade dos processadores em relação a velocidade de entrada e saída dos dispositivos de armazenamento. Neste contexto os Sistemas de Arquivos Distribuídos aparecem como alternativa para minimizar este problema. O presente trabalho propõe uma avaliação dos volumes mais comuns do Gluster Filesystem em relação à cargas geradas por meio da ferramenta de benchmark IOzone, identificando assim o comportamento dos volumes do GlusterFS nos ambientes propostos em relação às cargas submetidas.
ComprehensiveBench: Um Benchmark Flexível para Avaliação de Balanceadores de Carga no Ambiente de Programação Charm++
Authors: Bozzetti Tiago , Pilla Laércio , Castro Márcio , Navaux Philippe
Published: May 2021

Em aplicações paralelas que possuem tarefas com cargas desbalanceadas, os recursos de hardware não são utilizados eficientemente. Técnicas de balanceamento de carga visam amenizar esse problema e, consequentemente, podem melhorar o desempenho da aplicação paralela. Entretanto, identificar qual algoritmo de balanceamento de carga seria o mais indicado em um dado contexto é um problema não trivial. Nesse contexto, este artigo apresenta um benchmark para a avaliação de balanceadores de carga periódicos no ambiente paralelo Charm++. O benchmark tem os objetivos de auxiliar no desenvolvimento de novas técnicas de balanceamento e de auxiliar na escolha de um balanceador de carga específico para uma aplicação paralela qualquer. Por fim, o artigo apresenta avaliações de diferentes balanceadores de carga periódicos do Charm++ realizadas com o benchmark desenvolvido.
Verificação de Kernels em Programas CUDA usando Bounded Model Checking
Authors: Pereira Phillipe , Albuquerque Higo , Marques Hendrio , Silva Isabela , Santos Vanessa , Ferreira Ricardo , Carvalho Celso , Cordeiro Lucas
Published: May 2021

Este artigo apresenta uma extensão da ferramenta Efﬁcient SMTBased Context-Bounded Model Checker (ESBMC) para veriﬁcar programas que executam em unidades de processamento gráﬁco (GPU), chamado de ESBMCGPU. Em especial, ESBMC-GPU é um veriﬁcador de modelos limitado baseado nas teorias do módulo da satisfatibilidade para programas desenvolvidos na arquitetura de dispositivo uniﬁcado de computação (CUDA). O ESBMC-GPU é baseado em um modelo operacional, uma representação abstrata das bibliotecas padrões do CUDA que conservadoramente aproxima suas semânticas. Com ESBMC-GPU, é possível veriﬁcar mais programas CUDA reais do que outras abordagens existentes.
COISA: A Compact OpenISA virtual platform for IoT devices
Authors: Millani Carlos Eduardo , Linhares Alisson , Auler Rafael , Borin Edson
Published: May 2021

In face of the high number of different hardware platforms that we need to program in the Internet-of-Things (IoT), Virtual Machines (VMs) pose as a promising technology to allow a program once, deploy everywhere strategy. Unfortunately, many existing VMs are very heavy to work on resourceconstrained IoT devices. We present COISA, a compact virtual platform that relies on OpenISA, an Instruction Set Architecture (ISA) that strives for easy emulation, to allow a single program to be deployed on many platforms, including tiny microcontrollers. Our experimental results indicate that COISA is easily portable and is capable of running unmodiﬁed guest applications in highly heterogeneous host platforms, including one with only 2 kB of RAM.
Avaliação de um framework de apoio ao desenvolvimento de heurísticas de escalonamento sensível ao consumo energético
Authors: Pinto Bruno , Xavier Lucas , Cavalheiro Gerson
Published: May 2021

Os processadores modernos oferecem informações sobre seu consumo de energia. No entanto, a inexistência de uniformização e padronização desses dados restringe a portabilidade de soluções que os utilizam. Este trabalho apresenta um framework que provê uma interfaceúnica de serviços para acessar as informações de consumo energético de processadores de forma uniforme em tempo de execução. Como validação, o consumo energético de aplicações concorrentes é monitorado. Um estudo de casos discute a aplicabilidade dessa ferramenta em uma estratégia de escalonamento sensível ao consumo energético.
Como executar sua simulação em múltiplos processadores sem modificar nem seus módulos nem o SystemC
Authors: Falcão Tiago , Duenha Liana , de Azevedo Rodolfo
Published: May 2021

A simulação é uma etapa importante no desenvolvimento de sistemas computacionais, por meio de qual os sistemas em desenvolvimento são testados e tem comportamento e desempenho avaliados. SystemC é uma Linguagem de Descrição de Sistemas (SLDL), uma extensão da linguagem C++ com suporte a diferentes níveis de abstração. O SystemC simula sequencialmente todo o sistema sem aproveitar possível potencial de processamento paralelo. Esse artigo propõe uma abordagem genérica para permitir a simulação de cada componente num processo distinto, que pode ser escalonado em diferentes processadores, locais ou distribuídos. A principal vantagem é paralelizar simuladores descritos em SystemC sem a necessidade de modiﬁcar os modelos ou o SystemC.
Identificação Automática de Dark Silicon em Processadores Multicore
Authors: Silva Ana Caroline , Bignardi Tony , de Palma Edilson , Alves Rafael , Hayashi Clara , Santos Ricardo
Published: May 2021

Atualmente, os projetos de processadores modernos têm reduzido a área do chip que pode ser utilizada em frequência máxima de clock a ﬁm de continuarem a evolução de desempenho conforme a lei de Moore. A porção de área que deve ser mantida em baixa frequência é denominada Dark Silicon. Como é uma situação dependente do processo tecnológico utilizado, é essencial que os projetos de processadores modernos considerem a identiﬁcação dessa porção de área a ﬁm de explorarem alternativas para mitigá-la. Este trabalho propõe identiﬁcar e estimar o quantidade de Dark Silicon a partir da ferramenta MultiExplorer. Para avaliar essas estimativas, experimentos foram realizados em projetos de processadores multicore reais fabricados com diferentes processos tecnológicos (90nm-22nm).
Improving the Performance of the Contextual Spaces Re-Ranking Algorithm on Heterogeneous Systems
Authors: Pisani Flávia , Pedronette Daniel , Torres Ricardo , Borin Edson
Published: May 2021

Re-ranking algorithms have been proposed to improve the effectiveness of Content-Based Image Retrieval (CBIR) systems by exploiting contextual information encoded in distance measures and ranked lists. In this paper, we show how we improved the efﬁciency of one of these algorithms, called Contextual Spaces Re-Ranking. We propose a modiﬁcation to the algorithm that reduces its execution time by 1.6x on average and improves its accuracy in most of our test cases. We also parallelized the implementation with OpenCL to use the CPU and GPU of an Accelerated Processing Unit (APU). Employing these devices to run different parts of the code resulted in speedups that range from 3.3x to 4.2x in comparison with the total execution time of the serial version.
Utilização de aceleradores embarcados de baixo consumo na implementação de sistemas de HPC
Authors: Hoffmann de O. Emilio , Silva Jr. Jorge , Padoin Edson , Navaux Phillipe
Published: May 2021

Este trabalho tem como objetivo analisar o desempenho e a eﬁciência energética de aceleradores embarcados de baixo consumo para implementação de sistemas de HPC frente às atuais recomendações de consumo estabelecidas. Testes foram realizados utilizando os 3 níveis do benchmark SHOC em 5 aceleradores GPUs convencionais da NVIDIA e em um acelerador de baixo consumo embarcado na placa MPSoC Jetson. Aceleradores convencionais como NVIDIA K80, alcançaram desempenho de até 3750 GFLOPS e eﬁciência energética de 25 GFLOPS/W, enquanto que, o acelerador embarcado de baixo consumo TK1 obteve desempenho de apenas 301 GFLOPS e eﬁciência energética superior, equivalente a 26, 2 GFLOPS/W.
Different Laboratory Diagnosis Methods of COVID-19: A Systematic Review
Authors: Omidifar Navid , Bagheri Lankarani Kamran , Moghadami Mohsen , Shokripour Mansoureh , Chashmpoosh Mostafa , Mousavi Seyyed Mojtaba , Hashemi Seyyed Alireza , Gholami Ahmad
Published: May 2021

: The virus causing COVID-19 disease is known as severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The disease spread rapidly and was transmitted like a contagious disease throughout China, and then it gradually spread in other parts of the world. Accordingly, the rapid and accurate detection of the SARS-CoV-2 virus plays an essential role in selecting timely treatments, saving lives, and preventing the spread of the disease. This study summarizes the methods used to identify coronavirus nucleic acid. The effectiveness of coronavirus nucleic acid detection kits by different samples and the performance of other diagnostic techniques are also addressed in this study. We searched Embase, Google Scholar, MEDLINE, Web of Science, Scopus, and PubMed databases as well as the references of all relevant articles in English published during 2019 - 2020 using keywords related to COVID-19, detection kits, and respiratory failure and proceedings from relevant conferences and congresses. The authors collected the relevant reports, and each of the authors independently reviewed the data published in different studies. The results of previous studies indicated that the diagnosis methods of the COVID-19 disease are the RT-PCR method, ELISA kits, quick tests, white blood cell count, C-reactive protein (CRP) levels, other laboratory factors and antigenic detection methods. Given the sensitivity and specificity of these methods at different periods using different samples, the disease interpretation can be performed accurately. The findings showed that proper laboratory equipment and appropriate laboratory kits are necessary for the rapid and precise identification of COVID-19.
Independent Assessment of Current Floater Concepts for Floating Wind Application
Authors: Singhal Gaurav , Connolly Aengus , Laranjinha Manuel , McKinnon Colin , Mortimer Alan
Published: May 2021

Most of the offshore wind developments to date, globally, have been bottom-fixed foundations located in shallow waters (<30m water depth) and in close proximity to shore. However, as technology improves and as space for near-shore sites decreases, offshore wind development is projected to trend towards deeper waters. Floating wind is thus expected to become one of the leading renewable energy sources over the next decade or so. Notably, the success of pilot projects in Europe has confirmed the viability of floating wind technology, drawing in additional developers to the market. In the United States, there is a significant potential for floating offshore wind off the coast of California, Maine, and Hawaii. While the majority of current floating wind activity is concentrated in <200m water depth, further technology improvement coupled with experience from floating oil and gas developments will lead to even deeper floating wind projects in the future.

One key aspect for floating wind technology is the floater foundation that will support the wind turbine assembly. The entire unit will be moored to the seabed and be subject to challenging environment conditions throughout its service life (akin to a floating oil and gas production facility). There are several floating wind concepts currently in the market - a handful are field-proven at pilot project scale but the majority are still in development phase, each with their own unique offering. The purpose of this paper is to perform an independent qualitative assessment of the current floating wind concepts. The assessment will focus on aspects related to technology readiness, design complexity and scalability, material selection, constructability, installation, operations, and maintenance. This paper provides the offshore wind industry with an unbiased opinion on available designs as well as an insight into perceived challenges for future developments. As a disclaimer, it is noted that Wood has utilized public-domain information for this study and has no preference towards any existing floating wind concepts or designs.
The Eco Power System - A GWH Class Underwater Compressed Air Energy Storage System
Authors: Cheater Brian James
Published: May 2021

Energy storage will be essential for grid stability as an increasing amount of intermittent renewable energy (such as offshore wind or solar) is brought on-line. Currently accepted storage solutions are limited by opportunity (pumped hydro) or by limitations on strategic materials such as vanadium, cobalt and lithium. The ECO system does not suffer from these limitations and it is scalable into the gigawatt-hour ange using an extrapolation of available offshore technology at a cost low enough to be financially viable using just arbitrage on the daily retail energy market using any combination of wind and solar power. Beyond this, the system has the potential to scale up to provide strategic levels of grid storage for longer averaging periods. This paper will present the technical design of an efficient and viable offshore compressed air energy system.
Appendix. Metoder og opmærksomhedspunkter
Authors: Andersen Peter B. , Christensen Henrik Reintoft , Kühle Lene , Jacobsen Brian Arly , La Cour Peter , Pedersen Heidi Frølund , Høeg Awiti Luna Tengu Nyawade
Published: May 2021

Først og fremmest forklarer appendikset operationaliseringen af surveyet. Dernæst præsenteres beregningerne af forskellige skalaer, det drejer sig om religiøsitet og forskellige skalaer der adresserer det psykiske og eksistentielle velvære. Endelig præsenterer og diskuterer vi problemerne ved at sammenligne surveys indsamlet til forskellig tid og med forskellige udvælgelsesprocedurer af informanterne.
Patterns of torture among forcibly displaced Eritreans in California: A cross-sectional study
Authors: Portnoy P. Suzanne , Diaz Alejandro , Kupa Jenna , Rocroi Isabelle , Tatel Emily , Mehta Kala , Nelson Nicholas
Published: May 2021

Abstract

Introduction: Unprecedented global increases in involuntary migration have created large populations of forcibly displaced people, who are disproportionately likely to have experienced abuse and torture. We undertook this study to better understand the frequency and consequences of specific types of torture and abuse within an immigrant population in our community, San Francisco, East Bay.

Methods and Results: We conducted a cross-sectional study of 59 Eritreans seeking asylum in the United States presenting to a human rights clinic for forensic medical and psychological evaluations. Demographic features of individuals, reported history and specific types of torture, and physical and psychological sequelae were analyzed. Over 300 instances of torture were reported, an average of about 6 per person. The primary forms of torture reported were beating and forced positioning, and many others were reported sporadically. 90% of asylum seekers examined had clinical findings which were consistent with the torture they reported, and some physical findings had clinical as well as forensic significance. 86% met diagnostic criteria for post-traumatic stress disorder.

Discussion: Forcibly displaced people are likely to have witnessed and experience violence, deprivation, and abuse, and for this reason bear a disproportionate burden of physical, psychological, and social morbidity. Our study describes the epidemiology of torture and its consequences in a specific population, and demonstrates why understanding local and general epidemiology of torture and other forms of abuse is necessary to provide excellent biopsychosocial care to forcibly displaced people.
Sociocultural impacts on the innovativeness of tourism entrepreneurs in Hong Kong
Authors:   , Wong Hoi-Kuen
Published: May 2021

This thesis examined the impact of institutional and socio-cultural norms on the entrepreneurial behaviours and innovativeness of the tourism entrepreneurs in Hong Kong. In order to address to the research gaps of macro and micro contexts of entrepreneurship in the travel industry, a qualitative cases study was designed to discover how individual and environmental contexts, namely family background, education, learned experiences, beliefs, social norms and institutional constraints, influence the innovation of the travel industry in Hong Kong. In particular, it probed the problems through the interplay of a theoretical framework for a micro-sociological analysis of eight tourism entrepreneurs in Hong Kong, including the entrepreneurship theory of Hofstede’s cultural dimensions, Shapero’s entrepreneurial event, and the personality traits theory. By means of the qualitative approach, through multiple case studies and different sources of data, such as practitioner-participant observations, empirical data were analysed with a mixed approach with cross-sectional, contextual, and longitudinal data analysis for examination of the phenomenon in a transitional period. The collected data were studied with the congruent theories for a multifaceted narrative analysis. There is discussion about the antecedents for innovativeness of entrepreneurs and the negative social notions which were hindering innovation. This thesis provided a set of theoretical propositions and inspiration for future studies in the sociocultural impact on the innovativeness of entrepreneurs, reflecting the overlooked perspectives as anti-innovation social norms, innovation initiatives, and relevant research gaps of the multidisciplinary entrepreneurial research, especially in the personal pursuit of value creation in entrepreneurship. The thesis suggested a more complex level of analysis of entrepreneurial innovativeness, with a diverse context. In addition, this research offered implication for practices, including propositions for the nourishment of an innovation ecosystem and the avoidance of anti-innovation social norms in a community.
Trp-574-Leu mutation in wild mustard (Sinapis arvensis L.) as a result of als inhibiting herbicide applications
Authors: Sin Bahadir , Kadıoglu İzzet
Published: May 2021

Wheat is one of the most important crops grown all around the world. Weeds cause significant yield loss and damage to wheat and their control is generally based on herbicide application. Regular use leads to herbicide resistance in weeds. This study aims to reveal molecular detection of Sinapis arvensis resistance mutation against ALS inhibiting herbicides. For this purpose, survey studies have been carried out in wheat growing areas in Amasya, Çorum, Tokat, and Yozgat provinces and wild mustard seeds have been collected from 310 different fields. According to bioassay tests with tribenuron-methyl, 13 of these populations, have not been affected by the registered dose of herbicide. When survived populations were subjected to dose-effect study and herbicides were applied at 26-fold, the highest and lowest resistance coefficients were determined as 7.2 (A-007) and 1.02 (T-034) respectively. In addition, B domain region from ALS gene was amplified and analyzed in molecular studies to determine point mutation in wild mustard against ALS herbicides. The PCR products were sequenced and target-site mutation to Leucine was observed at Trp-574 amino acide. In the study, point mutation in Trp-574 amino acide and Trp-574 Leu mutation in Sinapis arvensis have been detected for the first time in Turkey.
Group B Streptococcus and the vaginal microbiome among pregnant women: a systematic review
Authors: Lim Sungju , Rajagopal Shilpa , Jeong Ye Ryn , Nzegwu Dumebi , Wright Michelle L.
Published: May 2021

Background

Vaginal microbiome studies frequently report diversity metrics and communities of microbiomes associated with reproductive health outcomes. Reports of Streptococcus agalactiae (also known as Group B Streptococcus or GBS), the leading cause of neonatal infectious morbidity and mortality, are notably lacking from the studies of the vaginal microbiome, despite being a known contributor to preterm birth and other complications. Therefore, the purpose of this systematic review was to explore the frequency of GBS reporting in vaginal microbiome literature pertaining to pregnancy and to examine methodological bias that contributes to differences in species and genus-level microbiome reporting. Lack of identification of GBS via sequencing-based approaches due to methodologic or reporting bias may result incomplete understanding of bacterial composition during pregnancy and subsequent birth outcomes.

Methodology

A systematic review was conducted following the PRISMA guideline. Three databases (PubMed, CINAHL, and Web of Science) were used to identify papers for review based on the search terms “vaginal microbiome”, “pregnancy”, and “16S rRNA sequencing”. Articles were evaluated for methods of DNA extraction and sequencing, 16S region, taxonomy classification database, number of participants or vaginal specimens, and pregnancy trimester.

Results

Forty-five research articles reported employing a metagenomic approach or 16S approach for vaginal microbiome analysis during pregnancy that explicitly reported taxonomic composition and were included in this review. Less than 30% of articles reported the presence of GBS (N = 13). No significant differences in methodology were identified between articles that reported versus did not report GBS. However, there was large variability across research methods used for vaginal microbiome analysis and species-level bacterial community reporting.

Conclusion

Considerable differences in study design and data formatting methods may contribute to underrepresentation of GBS, and other known pathogens, in existing vaginal microbiome literature. Previous studies have identified considerable variation in methodology across vaginal microbiome studies. This study adds to this body of work because in addition to laboratory or statistical methods, how results and data are shared (e.g., only analyzing genus level data or 20 most abundant microbes), may hinder reproducibility and limit our understanding of the influence of less abundant microbes. Sharing detailed methods, analysis code, and raw data may improve reproducibility and ability to more accurately compare microbial communities across studies.
Agradecimiento Editorial Evaluadores 2017
Authors:   Oficina Editorial Psykhe
Published: May 2021

Como toda revista científica que utiliza el sistema de pares evaluadores, la revista Psykhe recibe la valiosa colaboración de numerosos académicos e investigadores de instituciones de variadas latitudes. Todos/as ellos/as aceptan desinteresadamente evaluar en el sistema de doble ciego los artículos que se les envían para su revisión. Nuestro equipo editorial reconoce la labor de cada uno de ellos/as, junto con la de los/as miembros del Comité Editorial. Sin la contribución de los evaluadores, mantener una revista de calidad sería casi imposible. A continuación, se señalan los nombres de los evaluadores que contribuyeron durante el año 2017. Pensamos que la calidad de la revista, en un importante sentido, se debe al aporte de tiempo y experticia de quienes aparecen nombrados.
¿Coeducación o Educación Segregada por Sexo? Una Aproximación desde la Perspectiva de la Educación de Género
Authors:   Pontificia Universidad Católica de Chile, Alcalay Lidia , Milicic Neva ,   Pontificia Universidad Católica de Chile, Torretti Alejandra ,   Pontificia Universidad Católica de Chile, Berger Christian ,   Pontificia Universidad Católica de Chile
Published: May 2021

El contexto escolar constituye un espacio en el cual se trasmiten mensajes que influyen poderosamente en la construcción que alumnos y alumnas hacen de su identidad personal y de sus proyectos de vida. Generalmente estos mensajes forman parte del curriculum oculto, lo que hace muy difícil su detección y por ende, su modificación. Este artículo presenta una reflexión acerca del impacto que tienen los modelos coeducacionales y segregados por sexo, sobre los aprendizajes que hacen los jóvenes en relación a su identidad de género. Se concluye que, independientemente de la modalidad educativa, lo importante es visibilizar la temática del género en el contexto escolar, de modo que padres y profesores tomen conciencia de las fortalezas y debilidades presentes en cada género para poder así planificar en forma más eficiente las estrategias educacionales.
Simplified nonlinear analysis of reinforced concrete coupling beams subjected to cyclic loading
Authors:   State University of Maringá, Alves de Souza Rafael , Brena Sergio F. ,   University of Massachusetts Amherst
Published: May 2021

Reinforced concrete shear walls connected by coupling beams form an efficient structural system to resist earthquake and wind loads in tall buildings. However, the analysis of the effects caused by cyclic loading in this kind of system are not so straightforward. In the present paper, simplified nonlinear analysis using monotonic loading are used in order to obtain the behavior of tested coupling beams subjected to cyclic loading. Numerical results have shown that numerical monotonic loading is able to predict with good precision the yielding and the failure loads of the tested coupling beams subjected to cyclic loading. Both the cracking patterns and the predicted failure modes also followed the experimental behavior, ensuring that monotonic loading may be applied to have a first insight concerning cyclic loading.
Role of Age at Onset in the Clinical Presentation of Bipolar Disorder
Authors: Soni Ajitabh , Singh Paramjeet , Shah Raghav , Kumar Sunil , Batra Lalit
Published: May 2021

Introduction: There is considerable evidence to suggest that the clinical expression of Bipolar Disorder (BD) differs according to Age at Onset (AAO) that has therefore been identified as a potential specifier of interest. Aim: To compare the clinical presentation of BD and also to compare the presence of family history of illness in three subgroups made on the basis of AAO. Materials and Methods: A cross-sectional hospital based observational study was carried out on 162 patients having a diagnosis of BD current episode manic. Three subgroups were made according to AAO viz., Early Onset Bipolar Disorder (EOBD; AAO ≤21 years; 67 patients), Intermediate Onset Bipolar Disorder (IOBD; AAO=22-34 years; 59 patients) and Late Onset Bipolar Disorder (LOBD; AAO ≥35 years; 36 patients). The subgroups were compared on clinical variables, items of the Young Mania Rating Scale (YMRS), Hamilton Depression Rating Scale (HAM-D) and Scale for Assessment of Positive Symptoms (SAPS) scales and family history of illness. Results: The EOBD subgroup had significantly more episodes per year (p-value <0.001 and partial eta squared value=0.17) than IOBD and LOBD subgroups (mean episodes per year, respectively in EOBD, IOBD and LOBD were 1.8, 0.8 and 0.6). The prevalence of family history of mood disorder was also significantly higher in the EOBD (present in 35 out of 67; χ2 value=22.8 and p-value <0.001) than both the other subgroups (present in 10 out of 59 in IOBD and 6 out of 36 in LOBD). Significant differences were found on different items of YMRS, HAM-D and SAPS scales among the subgroups EOBD subgroup had higher rating on irritability, motor activity energy, sexual interest, depressed mood, delusions, thought disorders, while LOBD subgroup had higher rating on elevated mood. Conclusion: EOBD subgroup can be considered as a specific phenotype of BD patients, which is more homogenous, severe and heritable form of illness.
Effects of Hand Strengthening Exercise on Various Hand Functions in Female Patients of Chronic Rheumatoid Arthritis: A Case-control Study
Authors: Choudhry Dimple , Yadav Joginder , Singh Harpreet , Savarna . , Dhankher Poonam
Published: May 2021

Introduction: Rheumatoid Arthritis (RA) is a chronic systemic inflammatory disease which hampers the physical activity of an individual due to presence of pain, stiffness and fatigue. As it is progressive in nature, regular exercise of sufficient intensity is needed to maintain muscle strength. Aim: To find the effectiveness of hand strengthening exercise programme with therapeutic putty on grip strength and functional movement in chronic rheumatoid hand. Materials and Methods: A total of 206 female patients of chronic RA female patients were randomly divided in two groups- control and experimental groups and data. Control group received care which included active hand exercises with hot water fomentation while experimental group received strengthening exercises with therapeutic putty and hot water fomentation. Grip strength was measured by hand dynamometer, key pinch strength of dominant hand was measured by digital pinch meter, pain severity was assessed by Brief pain inventory scale and hand function was measured by SF-SACRAH (Score for Assessment and Quantification of Chronic Rheumatic Affections of Hands) at 0 week, after 4 week, 8 week and 12 week for both groups. Treatment effects were compared by one-way ANOVA followed by post-hoc analysis. The results were analysed by Statistical Package for Social Sciences (SPSS) version 16.0. Results: After 12 weeks of exercise programme, a significant improvement (p<0.01 and p<0.005) were observed in all outcome measures of hand function including reduction in pain severity score from baseline in experimental group. While in control group there was no significant changes in all four parameters from baseline to after 12 week exercise programme. Conclusion: A significant improvement was seen in experimental group as compared to control group after hand strengthening exercise protocol using therapeutic putty suggesting that, hand strengthening exercise programme by using therapeutic putty is effective in chronic RA hand.
Customised Ball Attachment Retained Cheek Plumpers to Enhance Facial Aesthetics: A Case Report
Authors: Patil Priyanka Pavankumar , Madhav VNV
Published: May 2021

Facial aesthetics plays a very important role in dentistry. Loss of teeth leads to the resorption of alveolar ridges, loss of support to the facial musculature resulting in diminished facial muscle tone, all of which lead to the slumping of the cheek. Authors here by present a case of a 59-year-old male patient who reported with the complaint of missing upper and lower teeth. Intraoral examination revealed completely edentulous maxillary and mandibular arches. Extraoral examination revealed sunken cheek and wrinkling of the skin. The patient was more concerned about his hollow cheek, so the treatment option advised for him was complete denture with detachable cheek plumpers. The technique used here precisely determines available space for cheek plumpers. But, despite of providing the maxillary cheek plumper, appearance of hollow cheek remained in lower third of face. So, the mandibular cheek plumper was also planned. This case report a novel, simple, straightforward, cost-effective and noninvasive technique of fabricating detachable cheek plumpers for maxillary and mandibular denture using customised ball attachment.
Clinical Study on Outcome of Treatment for Herpes Zoster
Authors: Ninama Kishan Rasubhai , Mahajan Rashmi Samir , Shah Atmakalyani Rashmi , Jain Apexa Prakash
Published: May 2021

Introduction: Herpes Zoster (HZ) is caused by reactivation of Varicella Zoster Virus (VZV). It is characterised by occurrence of grouped vesicles on erythematous base which involves the entire dermatome innervated by a single spinal or cranial sensory ganglion and is associated with radicular pain. Antivirals (Acyclovir, Famciclovir and Valacyclovir) started within 72 hours of onset of lesions are the agents of choice. Aim: To study the clinical manifestations, comorbidities, efficacy and safety of Acyclovir, complications and sequelae associated with HZ. Materials and Methods: A 3-year longitudinal cohort study was conducted in 212 adult patients (>18 years of age) suffering with HZ in the Department of Dermatology, Dhiraj General Hospital, Pipariya, Gujarat, India. In this study 212 patients with HZ were prescribed oral Acyclovir in a dose of 800 mg 5 times a day for 7 days. All patients were analysed in terms of clinical manifestations, pre-existing co-morbidities and incidence of complications. The clinical history and findings were recorded in a prestructured proforma. All patients were subjected to cytological examination (Tzanck smear) and Human immunodeficiency viruses (HIV) testing Enzyme-Linked Immunosorbent Assay (ELISA). Diagnosis was made primarily on the basis of clinical findings and presence of multinucleated giant cells in Tzanck smear. All the patients were treated with Oral Acyclovir. Cases were followed-up fortnightly for six weeks and evaluated for relief of symptoms, treatment outcome and complications/sequelae. Results: Two hundred and twelve cases were studied. One hundred and forty-two cases were in the 4th and 5th decades of life. Sixty-three cases had comorbidities like diabetes mellitus in 31, autoimmune diseases like pemphigus vulgaris, systemic lupus erythematosus, rheumatoid arthritis and inflammatory bowel disease in 19 and AIDS in 8 cases. Five cases had malignancy/lymphomas and were receiving chemotherapy for the same. In the majority, HZ occurred de novo without any comorbidities. The most common dermatomes involved were cervical and thoracic. Out of 212 cases Oral Acyclovir 800 mg was well tolerated by 74. Most common complication was Postherpetic Neuralgia (PHN), seen in 80 cases. Conclusion: The treatment of HZ with Oral Acyclovir 800 mg 5 times a day for 7 days is efficacious for healing of skin lesions and also reduces the chances of PHN if instituted within 72 hours.
Knowledge and Self-Perceived Confidence Level in Oral and Maxillofacial Surgery among Dental Interns in Riyadh
Authors: Alhulayyil Alhanouf , Alsaleh Lujain , Alshareef Saba , Elsayed Lubna , Hebbal Mamata
Published: May 2021

Introduction: Minor oral surgical procedures are practiced in dental teaching. Interns are required to be competent, well-prepared and acknowledge its basics before their practice. Lack of training and knowledge could lead to serious consequences during clinical practice. Aim: To assess the knowledge and confidence level between male and female dental interns in private and governmental Riyadh dental schools in performing simple dento-alveolar procedures. Materials and Methods: A cross-sectional observational study was conducted at Princess Nourah bint Abdulrahman University in Riyadh, Saudi Arabia in January 2020 among dental interns from all Riyadh dental schools. A cross-sectional survey containing 23 items was used. The first part included the informed consent and demographic data (item 1-3). The second part consisted of 10 case scenarios to assess the knowledge level (item 4-13), and the third part was developed to self-rate their confidence level (item 14-23). Around 300 participants belonging to five Riyadh dental schools comprised the study population. All interns were included in the study after obtaining informed consent. All statistical analyses were performed using Statistical Package for the Social Sciences (SPSS) version 21.0 and Microsoft Excel 16.16. Groups were compared using Pearson chi-square and unpaired sample t-test. The p-value of <0.05 was considered statistically significant. Results: Out of 300 interns invited to participate, 210 submitted the electronic survey (70%). The final study population included 117 (56%) females and 93 (44%) males. A total of 111 (53%) belonged to governmental college, and 99 (47%) belonged to private college. There was no statistically significant difference between females and males in total knowledge (p<0.272) and confidence score (p<0.850), respectively. However, a statistically significant difference in knowledge and confidence between government and private colleges was found (p<0.001). A weakly positive significant correlation (r=0.217, p=0.002) was found between the total score of knowledge and the total score of confidence in performing surgical procedures. Conclusion: The study provides baseline data on the knowledge and perceived confidence of dental interns in Saudi Arabia about certain clinical procedures in oral surgery, where respondents were most knowledgeable in prescribing an appropriate medication. They were confident in giving effective local anaesthesia. All in all, interns had a superficial knowledge about the classification of impacted teeth and they were least confident in managing cases of an intraoral abscess.
Analysis of the Structure of Economic Growth in the Fisheries Sector Study Case at Bogor District Indonesia
Authors: Febrisya Dinda Aulia , Rizal Achmad , Andriani Yuli , Suryana Asep Agus Handaka
Published: May 2021

This study aims to analyze the theory of economic growth and analyze the growth rate of the fisheries sector in the Bogor District based on a comparison of the total gross regional domestic production (GRDP) of cities and provinces. The research began in January 2021 until April 2021. The research method was carried out by survey methods collected both through decision surveys which were then analyzed quantitatively and presented descriptively. This research data comes from secondary data. The data was generated from interviews with the Department of Fisheries and Livestock staff in Bogor District, BPS Bogor District, BPS West Java Province, and Bappeda Bogor District. Data analysis included Shift Share Analysis and Location Quotient Analysis. Based on research conducted on the Analysis of the Economic Growth Structure of the Fisheries Sector in the Bogor District, it can be concluded that the Fisheries Sector is aprimary sector in the Bogor District with an LQ value of 1.2712. The results show the growth value of the net shift in the production of the fisheries sector in Bogor District with an average from 2015-2019 of -1.331.821,44. The fisheries sector shows a PB value <0, meaning that the fisheries sector in Bogor District has a slow growth rate.
Effects of Flame Retardant on the Flammability of Treated and Untreated Bagasse Papers
Authors: Onuegbu T. U. , Nnaneme F. O. , Nwokoro E. C.
Published: May 2021

A comparative study of the proximate analysis, fire characteristics, and mechanical properties of the papers produced from pretreated and untreated bagasse was carried out. The bagasse collected was washed, dried, depithed and ground to pass through a 5 mm sieve using an electric milling machine. A portion was pulped without pretreatment, while others were pretreated (acetylation) before pulping and washing. After which different mass (0,2,4,6,8 and 10 g) of potassium aluminum sulphate, KAl(SO4)2.12H2O (alum) as flame retardant was added. The proximate analysis, fire characteristics and mechanical properties were determined. Results show that cellulose content increased with an increase in the concentration of potassium aluminum sulphate, while hemicellulose content increased from 24%-34% for flame retarded paper with 0-10 g concentration of alum. Lignin content also increased from 21.3%-63.2% for flame retarded paper with 0-10 g concentration of alum, respectively. Ash content varied with an increase in the concentration of potassium aluminum sulphate. Results from fire characteristics show that flame propagation and flame duration rate decreased with an increase in the concentration of alum, while ignition time and char formation increased in the concentration of alum. The mechanical properties, tensile strength, modulus and elongation at break were enhanced. Conclusively, pretreatment enhanced the properties of bagasse papers produced.
A Cross Sectional Study on the Mental Health Impacts of Covid-19 Pandemic in a Sample of Nigerian Urban Dwellers
Authors: Okwaraji Friday E. , Onyebueke Godwin C.
Published: May 2021

Aim:  Corona virus disease (COVID-19) is caused by a new type of corona virus first discovered in China in 2019; hence the name COVID-19. Some of its symptoms include cough, fever, and breathing difficulty. In severe cases the disease can lead to death.  This study looked at the mental health impacts of COVID-19 pandemic in a sample of Nigerian urban dwellers.

Study Design: This is a descriptive cross sectional design.

Place and Duration of Study: The study was carried out in Enugu metropolis between the months of January and February 2021.

Methodology: Using the General Health Questionnaire (GHQ-12), The Short Screening Scale for Post traumatic stress disorder, The Generalized Anxiety Disorder Scale (GAD-7) and the Beck Depression Inventory (BDI-2) this study investigated the mental health impacts of COVID-19 pandemic among 520 Nigerian urban dwellers.

Results: Results shows that 29.2%; 13.1% and 1.9% had mild, moderate and sever depressive symptoms respectively. Equally 21.9%, 13.3% and 5.4% had mild, moderate and severe anxiety symptoms respectively. Furthermore 37.3% showed signs of psychological distress just as 24.8% manifested symptoms of PTSD. Results further revealed significant associations between psychological distress and gender; PTSD and gender as well as anxiety and gender respectively. 

Conclusion:  Following the high level of mental health impacts of Covid-19 pandemic noticed among the subjects who took part in the study, it was therefore recommended that psychological testing and psychotherapy be included in the routine testing and management of COVID-19 pandemic in Nigeria.