bluuebunny/crossref_metadata_2025 huggingface dataset:
Análise de mercado: produção de morangos e manjericões
Authors: Vergara Walter Roberto , Yamanari Juliana Suemi , Barbosa Fabio Alves
Published: November 2020

O potencial de desenvolvimento e empreendedorismo sempre foi um predicado para descrever o agronegócio brasileiro. Nas últimas décadas, o setor se tornou foco de grandes desenvolvimentos e oportunidades na área de irrigação, onde a floricultura foi se destacando de forma empresarial sem viés apenas para a subsistência e cultura assistencialista. Nesse sentido, o objetivo dessa pesquisa quantitativa é realizar uma análise de mercado que mapeie e identifique o segmento de mercado consumidor do cultivo de morango e manjericões hidropônicos, demonstrando a viabilidade de um novo empreendimento nesse ramo. O estudo tem natureza bibliográfica, exploratória, descritiva, explicativa e foi realizado no estado do Mato Grosso do Sul no período de 2017 a 2018. Os resultados apontaram, através das análises realizadas no âmbito mercadológico, que o referido segmento de mercado está em constante expansão e com investimento adequado e esforço tecnológico, é possível criar muitas oportunidades relacionadas à agricultura familiar.
Análise do potencial eólico brasileiro: estudo de caso in loco da construção do parque eólico em Santa Luzia – PB
Authors: Nascimento Adriana De Souza , Souza Dryelle Tuanne de , Sobrinho Júnior Antônio Da Silva , Melo Miguel Otávio Barreto Campelo de , Alves Sérgio Thales Amaro
Published: November 2020

Buscar fontes de energia limpa e inesgotável vem se tornando cada vez mais comum e necessário. O Brasil foi pioneiro entre os países da América Latina, durante a década de 90, aderindo à tecnologia de energia eólica ao instalar o primeiro aerogerador. Com o avanço dessa tecnologia e as excelentes condições encontradas por pesquisadores e investidores, principalmente na região Nordeste, a criação de parques eólicos cresceu consideravelmente ao longo dos anos, com potencial para crescer cada vez mais, enaltecendo o setor da construção civil. O objetivo deste artigo foi analisar o potencial eólico brasileiro, abordando aspectos relevantes, contribuições social, ambiental e econômica, vantagens deste tipo de produção para a região, tendo a vivência in loco, na análise da construção de um Parque eólico situado em Santa Luzia –PB. A cidade do estudo é reconhecida pelo seu alto índice de ventos, passando a ser conhecida como “corredor de vento”. A pesquisa caracteriza-se como bibliográfica, exploratória e documental, tendo o estudo de caso como metodologia. Conclui-se diversos benefícios na utilização deste tipo de energia, ambientais, sociais e econômicos, e que, as inovações no setor de energia eólica brasileiro, proporcionam, principalmente no Nordeste Brasileiro, a complementaridade eólica–hídrica colaborando para aumento da segurança energética do sistema elétrico brasileiro nos períodos do ano de maior e menor disponibilidade de água nos reservatórios das usinas hidroelétricas.
Avaliação de sobrecarga mecânica na coluna lombar de carregadores de produtos hortícolas: um estudo de caso
Authors: Santos José Wendel dos , Santos José Welton dos , Monteiro Luciano Fernandes
Published: November 2020

O objetivo deste estudo foi avaliar a existência de sobrecarga mecânica na coluna lombar de carregadores de produtos hortícolas da Central de Abastecimento do Estado de Sergipe (CEASA/SE). Para tanto, foram coletados dados de variáveis associadas ao manuseio de cargas executadas por 60 carregadores e das características da lombalgia autorreferida. A intensidade da dor e o grau de incapacidade funcional foram avaliados pela Escala Visual Numérica (EVN) e Questionário de Incapacidade de Roland-Morris (QIRM), respectivamente. A sobrecarga mecânica na coluna lombar e o risco de desenvolvimento de lombalgia foram avaliados pela Equação de Levantamento do NIOSH (ELN) e pelo Programa Tridimensional de Predição de Postura e de Força Estática (3DSSPP). Os resultados demonstraram que o nível de intensidade da dor e o grau de incapacidade funcional dos carregadores foram significativos. Além disso, foi observado que os carregadores manusearam cargas com peso acima do recomendado que, consequentemente, ocasionaram forças de compressão estática multidirecionais sobre os discos L4/L5 e L5/S1 da coluna vertebral superiores aos limites estipulados na literatura. Dessa forma, as fortes correlações entre as variáveis analisadas demonstraram que a tarefa desenvolvida se mostra danosa à saúde dos carregadores.
A visão proativa da manutenção em sistema de exploração de petróleo
Authors: Sucena Marcelo Prado , Marcondes Bárbara Moraes , Couto Tatiane Barbosa Lima
Published: November 2020

Em virtude da crise no setor petrolífero, é imprescindível gerenciar corretamente as manutenções com ferramentas e métodos eficientes. Por esse motivo, este Trabalho de Conclusão de Curso tem foco na aplicação da análise da criticidade nos componentes do Sistema de Perfuração de certo navio plataforma de petróleo, na sequência, na Análise dos Modos de Falhas, Efeitos e Criticidade (FMECA) e, por último, nas avaliações quali-quanti por Árvore de Falhas (FTA). Contou-se com a contribuição de um especialista supervisor de manutenção do navio plataforma nas aplicações do método de comparação por pares, que usam a teoria Fuzzy como fundo, para determinação do componente e o modo de falha mais críticos. Por meio da análise da criticidade do sistema de Perfuração chegou-se ao componente crítico “Top Drive”, que apresentou maior grau de pertinência. Na sequência, aplicou-se o método FMECA simplificado, tratando-se das funções principais, modos de falha e referidas causas, somente para o componente Top Drive. Foram mapeados vinte e oito modos de falha, considerando-se que “Válvula IBOP não fecha ao ser acionado seu comando” apresentou maior grau de pertinência. O referido modo de falha mais crítico foi utilizado como Evento Topo na aplicação da FTA, onde identificaram-se os eventos intermediários, causas básicas e portas lógicas OU. A FTA resultou na análise de dezessete causas básicas. A avaliação quali-quanti apontou que o evento topo tem 68% de probabilidade de ocorrência da falha e que todas as causas mapeadas são consideradas críticas, ou seja, para que o evento topo possa acontecer.
Percepção da inovação sob a ótica do resource-based view
Authors: Moreira Luis Fernando , Schlindwein Carlos Eduardo , Silva Daniel Faturi
Published: November 2020

Buscar a inovação é algo considerado necessário no meio empresarial para alavancar os resultados organizacionais, pois a inovação procede da influência mútua de vários recursos de atitudes da organização. O objetivo deste artigo estudo é mensurar a percepção da inovação usando a teoria baseada em recursos através de uma escala gráfica segundo a visão baseada em recursos, por meio de um estudo quantitativo onde pode-se comprovar que os recursos tangíveis de tecnologia, financeiro e organizacional tem uma forte relação para inovação, a relação das variáveis analisadas e a visualização do gráfico de dispersão pode-se considerar correlação positiva forte. A contribuição de cunho social também foi relevante para a presente pesquisa onde pessoas do gênero feminino ganham menos que pessoas do gênero masculino.
Leitura e a construção de significados na escola: relato de uma experiência pedagógica
Authors: Dal Magro Doris Regina Mieth , Bottega Rita Maria Decarli
Published: November 2020

A produção deste trabalho visa descrever uma experiência pedagógica baseada na leitura significativa de textos literários e refletir sobre os resultados obtidos. A aplicação ocorreu   em uma turma de nono ano do Ensino Fundamental de um colégio público em Marechal Cândido Rondon (PR). Por meio dessa prática, pretende-se contribuir para o processo de ensino-aprendizagem da leitura visando a formação da criticidade dos estudantes por meio da extrapolação dos sentidos metafóricos expressos nos textos, expandindo-os para situações concretas do cotidiano retratadas em questões políticas, econômicas, sociais e culturais. A metodologia utilizada é a da pesquisa ação a fim de verificar como a mediação pedagógica, por meio da leitura, pode contribuir para o letramento social dos estudantes. Essa atividade faz parte da implementação do projeto pedagógico do Mestrado Profissional em Letras e situa-se no campo metodológico da Linguística Aplicada, aliada com os postulados teóricos descritos por  Rojo (2012), Antunes (2013), Garcez (2012),  Bortoni-Ricardo (2010), Bakhtin/Volochinov (2010), Geraldi (2015) e  Riolfi (2014).Palavras-chave: Leitura, prática, letramento,  mediação pedagógica.
Padrões de potenciais elétricos do cérebro no processamento da sintaxe em segunda língua
Authors: Silva Giselli Mara da
Published: November 2020

Neste trabalho, apresenta-se uma revisão exploratória de estudos que tratam do processamento da sintaxe em segunda língua (L2) recorrendo à extração de potenciais relacionados a eventos (ERPs). A área de estudos de L2 tem assistido nos últimos anos um intenso debate sobre as bases neurocognitivas subjacentes à L2, especialmente no caso de aquisição tardia, questionando-se se os substratos neurais subjacentes à L2 são os mesmos da primeira língua. Diante da diversidade de propostas, os ERPs são uma importante ferramenta por permitirem acessar a atividade elétrica cerebral on-line, permitindo inclusive, com a descrição dos componentes relacionados à linguagem, distinguir determinados tipos de processamento linguístico empreendido pelos aprendizes. De modo geral, a revisão aqui apresentada evidencia que os aprendizes com alta proficiência podem atingir padrões de processamento da sintaxe da L2 semelhantes aos de um nativo. Porém, vários fatores devem ser considerados, tais como a distância entre as duas línguas do bilíngue, o tipo de exposição à língua ao qual ele teve acesso e outros fatores relativos a recursos cognitivos em geral. Ainda há inúmeras questões a serem investigadas como, por exemplo, os efeitos de LAN, que não parecem ser tão homogêneos e claros entre os estudos.
Por que ensinar variação linguística nas aulas de língua portuguesa?
Authors: Gomes Mariele Furtado de Barros
Published: November 2020

O presente artigo tem como intenção discutir o ensino de variação linguística nas aulas de língua portuguesa, no ensino fundamental II, 6º ao 9º ano, a partir da análise dos Parâmetros Curriculares Nacionais, do Currículo Básico Comum e da Base Nacional Comum Curricular. Também considerar-se-á, para fundamentação do trabalho, entre outros, textos de Sírio Possenti, Stella Maris Bortoni-Ricardo, Marcos Bagno e Lucia Furtado Mendonça Cyranka, visto que esses autores entendem o ensino da variação linguística como essencial para a formação da consciência linguística e do desenvolvimento da competência discursiva do discente.
Three new species of Diplotaxis Kirby from Guatemala and Mexico (Coleoptera, Scarabaeidae, Melolonthinae), with a key to the species of the trapezifera group
Authors: Delgado Leonardo , Toledo-Hernández Víctor Hugo
Published: November 2020

Three new species of Diplotaxis Kirby are described and illustrated, D. balamsp. nov. from Guatemala, and D. chiapasensissp. nov. and D. complanatissp. nov. from Mexico. The new species have a flattened body and are included in the trapezifera species group. An updated key to the trapezifera species group is given.
Effect of hyperthermia and acidosis on equine skeletal muscle mitochondrial oxygen consumption
Authors: Davis M.S. , Fulton M.R. , Popken A.
Published: November 2020

The skeletal muscle of exercising horses develops pronounced hyperthermia and acidosis during strenuous or prolonged exercise, with very high tissue temperature and low pH associated with muscle fatigue or damage. The purpose of this study was to evaluate the individual effects of physiologically relevant hyperthermia and acidosis on equine skeletal muscle mitochondrial function, using ex vivo measurement of oxygen consumption to assess the function of different mitochondrial elements. Fresh triceps muscle biopsies from 6 healthy unfit Thoroughbred geldings were permeabilised to permit diffusion of small molecular weight substrates through the sarcolemma and analysed in a high resolution respirometer at 38, 40, 42, and 44 °C, and pH=7.1, 6.5, and 6.1. Oxygen consumption was measured under conditions of non-phosphorylating (leak) respiration and phosphorylating respiration through Complex I and Complex II. Data were analysed using a one-way repeated measures ANOVA and data are expressed as mean ± standard deviation. Leak respiration was ~3-fold higher at 44 °C compared to 38 °C regardless of electron source (Complex I: 22.88±3.05 vs 8.08±1.92 pmol O2/mg/s), P=0.002; Complex II: 79.14±23.72 vs 21.43±11.08 pmol O2/mg/s, P=0.022), resulting in a decrease in efficiency of oxidative phosphorylation. Acidosis had minimal effect on mitochondrial respiration at pH=6.5, but pH=6.1 resulted in a 50% decrease in mitochondrial oxygen consumption. These results suggest that skeletal muscle hyperthermia decreases the efficiency of oxidative phosphorylation through increased leak respiration, thus providing a specific biochemical basis for hyperthermia-induced muscle fatigue. The effect of myocellular acidosis on mitochondrial respiration was minimal under typical levels of acidosis, but atypically severe acidosis can lead to impairment of mitochondrial function.
Determination of patulin and hydroxymethylfurfural in beverages by UPLC-PDA
Authors: Pernica M. , Martiník J. , Boško R. , Zušťáková V. , Benešová K. , Běláková S.
Published: November 2020

The present study describes using molecularly imprinted polymer (MIP) technology for determination of patulin (PAT) and 5-hydroxymethylfurfural (5-HMF) in beverages by ultra-high performance liquid chromatography coupled to photodiode array (UPLC-PDA). PAT (4-hydroxy-4H-furo[3,2-c]pyran-2(6H)-one) is a mycotoxin produced byPenicillium fungi andPenicillium expansum is probably the most commonly encountered species that infects apples during their growth, harvest, storage or processing. The occurrence of PAT as a natural contaminant of apples is a worldwide problem. 5-HMF (also known as 5-(hydroxymethyl) furan-2-carbaldehyde), is formed in the Maillard reaction as well as during caramelisation. It is a good storage time-temperature marker and flavour indicator, especially in beverages such as wine, beer, but also cider and apple juice which may contain PAT. PAT and 5-HMF were separated within 2 min using a Luna Omega C18 column and the PDA detector wavelength was set to 276 nm. The validation parameters of the analytical method such as linearity, limit of detection, limit of quantification, accuracy and precision were tested. The calibration curves were linear at least in the range 50-1000 ng/ml with a good linearity (R2>0.999) for both analytes, the limit of detection and the limit of quantification for PAT and 5-HMF were in the range 4.9-6.6 and 16.1-21.8 μg/l, respectively. The recoveries of the selected analyte were in the range 61.9-109.0% with a precision of <8.2% (relative standard deviation (RSD)) for PAT and in the range 50.8-98.0% with a precision of <10.0% (RSD) for 5-HMF. The validated procedure was successfully applied for the analysis of PAT and 5-HMF in beverages from retail shops.
Aflatoxin contamination and recommendations to improve its control: a review
Authors: Kaale L.D. , Kimanya M.E. , Macha I.J. , Mlalila N.
Published: November 2020

Aflatoxin producing fungi cause contamination of food and feed resulting in health hazards and economic loss. It is imperative to develop workable control measures throughout the food chain to prevent and reduce aflatoxin contamination. This is a critical review of contemporary published papers in the field. It is a review of reports from the original aflatoxin researches conducted on foods, from 2015-2020. Most of the reports show high aflatoxin contaminations in food at levels that exceed a regulatory limit of 20 μg/kg and 4 μg/kg set for foods for human consumption in the USA and European Union, respectively. The highest aflatoxin concentration (3,760 μg/kg) was observed in maize. Some of the strategies being deployed in aflatoxin control include application of biocontrol agents, specifically of Aflasafe™, development of resistant crop varieties, and application of other good agricultural practices. We recommend the adoption of emerging technologies such as combined methods technology (CMT) or hurdle technology, one health concept (OHC), improved regulations, on-line monitoring of aflatoxins, and creative art intervention (CAI) to prevent or restrict the growth of target aflatoxin causative fungi.
Transforming and Facilitating Quality Education in Developing Knowledge Economy
Authors: Sinha Ekta
Published: November 2020

In 2015, world leaders gathered at the United Nations (UN) to adopt 17 Sustainable Development Goals to achieve several extraordinary things by 2030. Among these 17 goals of sustainable development, ‘Quality Education' has been recognized as the fourth most important thing in order to transform our world. Obtaining a quality education is the foundation to improving people's lives and sustainable development. India, which is now one of the fastest growing economies of the world, is continuously thriving to transform and facilitate quality education for all, irrespective of the gender, caste, and socio-economic status to leverage county's demographic dividend. Such initiatives have been helpful in creating and sustaining a knowledge society and economy where people learn and build their capabilities to add value through knowledge development, improvement, and innovation. The efforts taken by India to improve the creation, storage, and dissemination of knowledge have helped her to build human capital and face the challenges of dynamic and ambiguous environment. This chapter discusses critical activities contributing to the desired change, highlights prevailing structural and socio-economic issues, and in the course of the analysis identifies some critical areas for improvement.
Climate Change and Crop Production in Africa
Authors: Amare Zerihun Yohannes
Published: November 2020

Agriculture, particularly crop production, is an economic activity that is highly dependent upon weather and climate in order to produce the food and fiber necessary to sustain human life. The vulnerability of agriculture to climate change and variability is an issue of major importance to the international scientific community. Greenhouse gas (GHG)-induced climate change would very likely result in significant damage in the agricultural sector in sub-Saharan Africa because the region already endures high heat and low precipitation. General circulation models (GCMs) are the primary source of climate change scenarios which make projections about the degree and timing of climate change. Agriculture has always been dependent on the variability of the climate for the growing season and the state of the land at the start of the growing season. The key for adaptation for crop production to climate change is the predictability of the conditions. What is required is an understanding of the effect on the changing climate on land, water, and temperature.
Tools Used by Hospital Management to Reinforce Change and Sustain Results in the Implementation of EHR System in Public and Private Hospitals
Authors: Msomi Mandisa , Luthuli Lungile Preciouse , Kalusopa Trywell
Published: November 2020

Hospitals are complex to operate, particularly in the implementation of electronic health records systems. The implementation and use of electronic health records (EHR) management in hospitals requires management to reinforce change and sustain results for good end results. The purpose of this chapter is to unveil tools used by public and private hospital management to reinforce change and sustain results in the implementation of electronic health records systems. Both public and private hospital are based in the eThekwini Municipality. The conceptual framework based on Kotter Leading Change Model was comprehensively discussed. The findings of the study revealed that there are no standard guidelines for both public and private hospitals in the implementation of EHR system in hospitals. Clarity regarding change management policies and procedures in the implementation of EHR system in both public and private hospitals is required. The study recommends that both public and private hospitals tools to reinforce change and sustain results in the implementation of electronic health records management need to be developed and officially documented.
Webrarian
Authors: Mohapatra Niranjan
Published: November 2020

This chapter presents the current trends of Library on the web and the importance of the Librarian in the web-library as a webrarian (web-librarian). In the modern technological era, Ranganathan's five laws of the library may be extended to the web using information and communication technologies (ICTs). When the fundamental laws of library science are applied to the web, then the professional responsibilities and duties of a librarian will be enhanced in order to effectively and efficiently manage the web and serve the web users. Realizing the differences between the web and the library? An idea of the joint venture has been the practicalities of creating another platform for the both and the initiative is a library on the web which is well known as a web-library. Mostly libraries have their websites to organize information and resources and provide access to users for the collections of quality resources. The role of librarians is to adopt the Web technologies into the profession of librarianship. Librarians have been induced by technological developments to become more efficient as but not limited to the role of organizers, indexers, abstractors, archivers, data brokers, and webrarians.
A Review of Virtual Reality and English for Academic Purposes
Authors: Pack Austin , Barrett Alex
Published: November 2020

Virtual reality (VR) has garnered increasing attention as a pedagogical tool for language learning. Yet, despite the many affordances of using virtual reality learning environments (VRLEs), there remains a paucity of research investigating the use of VRLEs for English for academic purposes (EAP). While BALEAP '19 conference presentations related to VR were well attended, suggesting there is interest in VR and EAP, many practitioners and researchers may be hesitant to explore using VR for EAP due to difficulties in selecting suitable equipment, understanding VR related terminology, and selecting or creating appropriate VRLEs for their pedagogical and research purposes. The objective of this article is to reduce the difficulty of some of these initial obstacles by providing overviews of relevant literature, VR terminology, technology, and software, as well as providing examples of potential uses of VR for EAP and a framework for investigating VR in EAP pedagogy and research.
Internet of Things and Cognitive Radio
Authors: Benmammar Badr
Published: November 2020

Internet of things (IoT) is a worldwide network of interconnected objects. However, the things-oriented, internet-oriented, semantic-oriented, and tactile-oriented versions of IoT are meaningless if the IoT objects are not equipped with intelligence. For this, current research trends are oriented towards cognitive radio. This paper presents IoT, its definition, its potential applications, its challenges, as well as its enabling technologies. Among these technologies, particular importance is given to cognitive radio. The overall objective of this paper is to make a global synthesis on the motivations as well as on the challenges to be raised by the integration of cognitive radio in IoT in order to serve as self-reconfigurable solutions for a certain number of IoT applications.
Elimination of Silicon Droplets Formation during 4H-SiC Epitaxial Growth by Chloride-Based CVD in a Vertical Hot-Wall Reactor
Authors: Li Chuan Gang , Ju Tao , Zhang Li Guo , Kan Xiang , Zhang Xuan , Qin Juan , Zhang Bao Shun , Zhang Ze Hong
Published: November 2020

The growth pits formed during 5-10 μm 4H-SiC epitaxial growth by a home-built vertical hot-wall CVD reactor are investigated and their formation mechanisms are discussed. The origin of the growth pits is believed to be the silicon droplets related to the unoptimized growth condition. The growth pits are successfully removed by adding more HCl to the in-situ etching stage and the after-growth cooling stage.
Synthesis of Diamond on SiC by Microwave Plasma Chemical Vapor Deposition: Comparison of Silicon-Face and Carbon-Face
Authors: Zhang Xue Min , Yan Chang Ling , Zeng Chun Hong , Wang Yi Qun , Zhang Bao Shun , Pang Chao
Published: November 2020

Diamond is arguably the best candidate material for heat dissipation applications, especially in high-power electronic devices. Silicon carbide (SiC) is a kind of wide band gap material, which can be used in applications of silicon (Si) components to reach the performance limits. In this paper, thin diamond films were successfully deposited on C-face and Si-face of 6H-SiC substrates respectively using MPCVD at temperatures from 800 to 1050 °C. SEM images indicated the growth quality comparison of the two faces of SiC. The diffraction peaks of the diamond (111), (220), and (311) crystal planes can be observed by XRD measurement, and the intensity of the diamond diffraction peaks grown on the C-face is stronger than that on Si-face. The growth process was analyzed by Raman spectrum. FWHM of diamond Raman spectra on Si-face and C-face are 6.07cm-1 and 5.47cm-1 respectively. All above measurement results show that the diamond grown on the C-face has higher crystal quality than that on Si-face of SiC.
A Contemporary Approach to Patellofemoral Pain in Runners
Authors: Esculier Jean-Francois , Maggs Kevin , Maggs Ellora , Dubois Blaise
Published: November 2020

Patellofemoral pain (PFP) is among the most common injuries in recreational runners. Current evidence does not identify alignment, muscle weakness, and patellar maltracking or a combination of these as causes of PFP. Rather than solely investigating biomechanics, we suggest a holistic approach to address the causes of PFP. Both external loads, such as changes in training parameters and biomechanics, and internal loads, such as sleep and psychological stress, should be considered. As for the management of runners with PFP, recent research suggested that various interventions can be considered to help symptoms, even if these interventions target biomechanical factors that may not have caused the injury in the first place. In this Current Concepts article, we describe how the latest evidence on education about training modifications, strengthening exercises, gait and footwear modifications, and psychosocial factors can be applied when treating runners with PFP. The importance of maintaining relative homeostasis between load and capacity will be emphasized. Recommendations for temporary or longer-term interventions will be discussed. A holistic, evidence-based approach should consist of a graded exposure to load, including movement, exercise, and running, while considering the capacity of the individual, including sleep and psychosocial factors. Cost, accessibility, and the personal preferences of patients should also be considered.
The geometry of $E$-manifolds
Authors: Miranda Eva , Scott Geoffrey
Published: November 2020

Motivated by the study of symplectic Lie algebroids, we focus on a type of algebroid (called an

E

-tangent bundle) which is particularly well-suited to the study of singular differential forms and their cohomology. This setting generalizes

b

-symplectic manifolds, foliated manifolds, and a wide class of Poisson manifolds. We generalize Moser’s theorem to this setting, and use it to construct symplectomorphisms between singular symplectic forms. We give applications of this machinery (including the study of Poisson cohomology), and study specific examples of a few of them in depth.
Частично интегрируемые почти комплексные структуры
Authors: Mushkarov Oleg
Published: November 2020

Представлен обзор некоторых старых и новых результатов о локальном существовании голоморфных функций на почти комплексных многообразиях.
Системы Хитчина на гиперэллиптических кривых
Authors: Borisova Polina Igorevna , Sheinman Oleg Karlovich
Published: November 2020

Дано описание класса спектральных кривых и найдены явные формулы для координат Дарбу систем Хитчина для классических простых групп на гиперэллиптических кривых. Разобраны примеры систем с группами ранга $2$ на кривых рода $2$.
Дискретный оператор Шрeдингера на графе-дереве, потенциалы Анжелеско и их возмущения
Authors: Aptekarev Alexander Ivanovich , Denisov Sergey Aleksandrovich , Yattselev Maxim
Published: November 2020

Рассматривается класс дискретных операторов Шрeдингера на бесконечном однородном графе-дереве с корнем. Потенциалы операторов этого класса состоят из коэффициентов рекуррентных соотношений, которым на многомерной решетке удовлетворяют совместно ортогональные многочлены. Для операторов на бинарном дереве с потенциалами, генерируемыми совместно ортогональными многочленами по отношению к системе мер, заданных на непересекающихся отрезках (так называемой системе Анжелеско), а также для их компактных возмущений установлено, что существенный спектр совпадает с объединением отрезков - носителей мер ортогональности.
Factors Associated with Mortality among Hospitalized Patients with COVID-19: A Retrospective Cohort Study
Authors: Martins-Filho Paulo Ricardo , Antunes de Souza Araújo Adriano , Pereira Luciana Xavier , Quintans-Júnior Lucindo José , de Souza Barboza Waneska , Cavalcante Taise Ferreira , Feitosa de Souza Mércia , de Oliveira Góes Marco Aurélio , Santos Victor Santana
Published: November 2020

Information on the risk factors for COVID-19 mortality in low- and middle-income countries is still scarce. In this retrospective cohort study, we analyzed the factors associated with COVID-19 mortality in hospitalized patients in a poor area of Brazil. Logistic regression was used to identify factors independently associated with mortality, including gender, age, and the presence of underlying medical conditions. A total of 1,207 patients were included in the analysis, and a 1.5-fold increase in COVID-19 mortality was found among patients aged > 65 years with hypertension and diabetes (odds ratio [OR]: 1.50, 95% CI: 1.02–2.19). Moreover, infectious disease (OR: 4.31, 95% CI: 1.39–13.39), kidney disease (OR: 2.59, 95% CI: 1.27–5.27), and heart disease (OR: 2.00, 95% CI: 1.31–3.04) were also predictive for COVID-19 in-hospital death. This large cohort provides important data on potential factors associated with COVID-19 mortality in Brazil.
Prevalence of wound, its associated risk factors and wound management practices in carthorses of ten selected towns of Ethiopia
Authors: Teferi Mihret , Tesfaye Reta , Zewdu Hanna , Gemechu Gizaw , Tefera Gebre , Ashine Tibetu
Published: November 2020

No Abstract.
Identification, antioxidant and cytotoxic potentials of casticin in Vitex agnus-castus fruit from different geographical regions of Turkey
Authors: Toplan Gizem Gulsoy , Ozkan Esra Eroglu , Taskın Turgut , Abudayyak Mahmoud , Mat Afife , Sarıyar Gunay
Published: November 2020

Purpose: To evaluate the antioxidant and cytotoxic effects, and casticin contents of Vitex agnus-castus (VAC) fruit extract from five geographical regions of Turkey.Methods: Casticin determination in VAC fruit extracts was performed using HPLC-DAD method. The method was validated for linearity, sensitivity, selectivity, accuracy and precision. The methanol extracts of the VAC fruits were analyzed for antioxidant effects using 2,2-diphenyl-1-picrylhydrazyl (DPPH•) radical scavenging capacity, metal-chelation capacity assay, radical cation scavenging capacity (ABTS•+), and total phenolic content. The cytotoxic potential of the extracts against NRK-52E and HeLa cells were determined using MTT and LDH assays.Results: The casticin content of the extracts ranged from 0.048 and 0.152 %. Total phenol content was in the range of 36.67 ± 0.7 to 74.20 ± 1.02 mg gallic acid equivalent (GAE)/100 mg of extracts. High-tomoderate antioxidant properties were observed in the extracts. Cytotoxicity data demonstrated that all extracts showed high cytotoxic effects on HeLa cell line when compared to the NRK-52E cell line (p < 0.05).Conclusion: These results suggest that VAC fruits (Monk’s pepper fruits) from Aegean sea coasts have a potential for use in the preparation of phytopharmaceutical products.

Keywords: Vitex agnus-castus, Casticin, Antioxidant, Cytotoxic activity, Anticancer
Characterization and in vitro release study of artesunateloaded microparticles prepared using crosslinked-chitosan and its derivatives
Authors: Sari Retno , Feriza Meta Dian , Syarahil Amani , Miatmoko Andang , Setyawan Dwi
Published: November 2020

Purpose: To determine the effect of crosslinking on the physical characteristics, recovery, and release of artesunate-loaded chitosan and carboxymethyl chitosan microparticles.Methods: The artesunate microparticles were prepared by means of ionic gelation-spray drying methods involving the use of a crosslinking agent i.e. tripolyphosphate for chitosan and CaCl2 for carboxymethyl chitosan. The drug-polymer solution mixture was introduced into the crosslinker solution and stirred for two hours at 500 rpm prior to drying at a temperature of 100ºC, a pressure of 2 mbar and a flow speed of 6.0 mL/min. The resulting microparticles were subsequently evaluated for their morphology, physical state, drug content and in vitro drug release.Results: The results showed that the type of chitosan and crosslinking affected particle shape, surface roughness, drug recovery, and drug release. The artesunate microparticles prepared with cross-linked polymer demonstrated a lower encapsulation efficiency due to the barriers presented by the crosslinking agents. The use of carboxymethyl chitosan increased the release rate of the artesunate from the microparticles by up to 1.2 times (16.78 mg/ml.min½), while chitosan decreased it 0.7 times (9.12 mg/ml.min½) compared to artesunate alone (13.54 mg/ml.min½).Conclusion: The use of crosslinking agents and chitosan type affects the physical characteristics of artesunate in addition to its release rate from microparticles.

Keywords: Artesunate, Chitosan, Carboxymethyl chitosan, Crosslinking, Microparticle, Drug release
Amygdalin protects apoptosis of retinal ganglionic cells in glaucoma rats by regulating the expressions of anti- and pro-apoptotic proteins
Authors: Zeng Xiaoli , Hongbin Lv , Huang Xuewen
Published: November 2020

Purpose: To evaluate the protective effect of amygdalin against glaucoma.Methods: Glaucoma was induced in rats via ischemia/reperfusion. The rats were treated with amygdalin (1 mg/kg) intraperitoneally (ip) for 5 weeks. Intra-ocular pressure (IOP), viability of retinal ganglion cell (RGCs) and histopathological changes in the retinal tissue of the glaucoma rats were determined. The expression levels of inflammatory cytokines and expressions of apoptotic factors were assessed in retinal tissues of all groups.Results: Intra-ocular pressure was reduced in amygdalin-treated group, when compared with the glaucoma group (p < 0.05). Moreover, the viability and thickness of RGCs in the amygdalin-treated group were enhanced, relative to untreated glaucoma rats. There was decrease in retinal cytokinelevels in amygdalin-treated group, when compared with untreated glaucoma rats. Amygdalin treatment ameliorated altered expressions of apoptosis proteins in the retinal tissue of ischemia/reperfusioninduced glaucoma rats.Conclusion: Amygdalin has a protective effect against ischemia/reperfusion-induced glaucoma in rats. Thus, it has a potential for use in the clinical management of glaucoma.

Keywords: Glaucoma, Amygdalin, Cytokines, Ischemia/reperfusion, Apoptosis
Research in vulnerable communities, a long journey from vulnerability to empowerment.
Authors: Farah Asif  , Admin
Published: November 2020

Letter to the editor
Sounding the Cape: Music, Identity and Politics in South Africa
Authors: Martin Denis-Constant
Published: November 2020

For several centuries Cape Town has accommodated a great variety of musical genres which have usually been associated with specific population groups living in and around the city. Musical styles and genres produced in Cape Town have therefore been assigned an ìidentityî which is first and foremost social. This volume tries to question the relationship established between musical styles and genres, and social --in this case pseudo-racial --identities. In Sounding the Cape, Denis-Constant Martin recomposes and examines through the theoretical prism of creolisation the history of music in Cape Town, deploying analytical tools borrowed from the most recent studies of identity configurations. He demonstrates that musical creation in the Mother City, and in South Africa, has always been nurtured by contacts, exchanges and innovations whatever the efforts made by racist powers to separate and divide people according to their origin. Musicians interviewed at the dawn of the 21st century confirm that mixture and blending characterise all Cape Town's musics. They also emphasise the importance of a rhythmic pattern particular to Cape Town, the ghoema beat, whose origins are obviously mixed. The study of music demonstrates that the history of Cape Town, and of South Africa as a whole, undeniably fostered creole societies. Yet, twenty years after the collapse of apartheid, these societies are still divided along lines that combine economic factors and 'racial'categorisations. Martin concludes that, were music given a greater importance in educational and cultural policies, it could contribute to fighting these divisions and promote the notion of a nation that, in spite of the violence of racism and apartheid, has managed to invent a unique common culture.
Analysis of Coping Behavior of Parents Who Have Children with Special Needs (Autism) in Public Special School 1 Kendari
Authors: Muhammadi Rani , Nasir Sudirman , Thamrin Yahya , Thaha Ridwan M. , Seweng Arifin , Citrakesumasari Citrakesumasari
Published: November 2020

Autism Spectrum Disorder (ASD) is a condition characterized by several levels of social behavior, communication and language that is disturbed by various interests and narrow activities that are unique to the individual and carried out repeatedly. Parents need coping to understand the condition of children with special needs. This study aims to analyze coping behavior in parents who have children with special needs (autism). This research is a qualitative research with a case study approach. The data were obtained by means of in-depth interviews and observations on 14 informants consisting of families, parents and health workers as well as teachers and principals Public Special School 1 Kendari. Content analysis is used to identify topics or categories in data. The results showed that coping behaviors were used to overcome feelings, namely worship, crying, patience, keeping busy and entertaining themselves. Coping behavior to overcome the condition of children with special needs (autism) in the form of following therapy, dietary food, teaching children at home, alternative medicine and taking medication. To support coping efforts, parents get support from family, friends, school principals, teachers and therapists. It is recommended that Special School 1 Kendari be able to increase the understanding and knowledge of parents about autism by holding training for parents who have children with autism, how to handle children with autism so that parents gain understanding and help parents' difficulties in working with children with autism.
Presentación
Authors: Espezúa Salmón Boris Gilmar
Published: November 2020

Uno de los grandes retos de la educación de éste milenio XXI, en nuestro país  es el que va a tener que determinar un nuevo enfoque educativo en todos los niveles y por lo tanto tiene que ver con lograr alcanzar el gran objetivo: “De la formación de individuos críticos y creativos, generadores de nuevo conocimiento para la innovación y la tecnología”. Pero, también personas preparadas para la emancipación del conocimiento, para alcanzar mejorar nuestro país desde su autonomía, desde sus problemas esenciales, cruciales, y seculares en el tiempo.
ANALISIS DISKRIMINAN OPERATOR SELULER TELKOMSEL DAN OPERATOR SELULER LAINNYA (INDOSAT OOREDOO, XL AXIATA, 3) TERHADAP KEPUTUSAN BRAND SWITCHING DI STIE DEWANTARA
Authors: Osta Nababan Benny , Ambiatul Awwalin Irhaz
Published: November 2020

Tujuan penelitian ini adalah untuk membandingkan variabel bebas operator seluler Telkomsel dengan operator lainnya dan menentukan model diskriminan brand switching operator seluler Telkomsel. Pendekatan yang digunakan pada penelitian ini adalah metode kuantitatif komparatif. Variabel independen yang terdiri dari Kualitas produk (X1), Harga (X2), Promosi (X3) dan Brand Image (X4), variabel dependennya adalah Brand Switching (Y). Populasi penelitian ini adalah Mahasiswa STIE Dewantara (Tahun Ganjil 2015-2018) sebanyak 1028. Jumlah sampel yang diambil sebanyak 100 sampel dengan rumus Slovin dengan alpha 5%. Analisa data menggunakan anlisis diskriminan. Hasil penelitian menunjukkan variabel yang digunakan dalam penelitian ini secara keseluruhan valid dan reliabel sehingga data yang diperoleh dapat digunakan dalam Analisis diskriminan operator seluler Telkomsel dan operator seluler lainnya. Nilai kepuasan konsumen operator seluler secara rata-rata lebih puas kepada operator seluler Telkomsel, yang ditunjukan oleh nilai rata-rata kepuasan sebesar 397,07 point sedangkan operator seluler lainnya sebesar 357,87 point. Ada 3 perbedaan persepsi konsumen operator seluler terhadap Telkomsel. Perbedaan persepsi tersebut ada pada variabel kualitas produk, promosi dan brand image. Artinya pengguna operator seluler akan membandingkan 3 variabel tersebut sebelum melakukan perpindahan ke merek Telkomsel.
PENGARUH KUALITAS PELAYANAN LOKET PENDAFTARAN TERHADAP KEPUASAN MASYARAKAT DI KANTOR PERTANAHAN KABUPATEN BOGOR
Authors: . Muhlis , Rahmania Dinar
Published: November 2020

Tujuan penelitian ini untuk mengetahui pengaruh keandalan, daya tanggap, jaminan, perhatian, dan bukti fisik terhadap kepuasan masyarakat secara parsial maupun simultan. Metode pengumpulan data untuk pengujian hipotesis menggunakan pengisian kuisioner yang ditujukan 100 responden masyarakat berusia di atas 17 tahun yang menggunakan pelayanan di loket pendaftaran. Hasil analisis linear berganda bahwa dapat diketahui pengaruh dimensi kualitas pelayanan sebesar R2 = 0,346 hal ini berarti sumbangan variabel X (Kualitas Pelayanan) berperan dalam mempengaruhi variabel Y (Kepuasan Masyarakat) Sebersar 34,6%. Berdasarkan hasil uji t variabel daya tanggap dan perhatian berpengaruh terhadap kepuasan masyarakat. Dilihat dari hasil uji f kepuasan masyarakat secara bersama-sama dipengaruhi oleh variabel keandalan, daya tanggap, jaminan, perhatian, dan bukti fisik pada tingkat signifikansi alpha 10% atau tingkat kepercayaan 90%. Berdasarkan hasil uji t variabel daya tanggap dan perhatian berpengaruh terhadap kepuasan masyarakat.
Development of Optical Character Recognition Software Package for Mobile Phones
Authors: Kaur Sukhwant , Kaura H. K. , Ojha Mritunjay
Published: November 2020

Optical Character Recognition (OCR) is a technique through which any textual information contained in images are extracted and converted into editable text format. The various OCR software packages which are available in desktop computer with scanner suffer from one primary constraint- MOBILITY. We have developed an OCR application for mobile phones. All the procedures needed for extracting the text would be performed within the mobile phone, eliminating the need for bulky devices like scanners, desktops and also laptops. Hence it would provide the user the much needed ‘anywhere, anytime’ feature for OCR. The computational power of mobiles is increasing day by day making it easier to run image processing operations for OCR application. Also the resolution of camera in mobile is increasing to match the resolution of scanners. After the document is processed, it can be communicated to another user by email facility of mobile phones as text files. The aim of this paper is to investigate the various issues involved in developing this OCR application in mobile phones. Further design and future scope for this application is elaborated giving insight to the development process. The motivation here was to provide a general purpose framework for OCR application in mobile phones. The framework is developed in a modular fashion.
Computational Intelligence with Automata Theory
Authors: Kumari Neelam
Published: November 2020

In this paper I have discussed about a various techniques i.e. Neural Network, Fuzzy Logic, and Genetic algorithm and a few concepts of automata theory. Every application that deals with fuzzy logic also deals with Neural Networks and Genetic algorithm. But how the application will work depends totally on Computational Intelligence. So here I discussed Computational Intelligence with Automata Theory concepts for designing any application.
Functional Analysis of Artificial Neural Network for Dataset Classification
Authors: Priyadarshini Rojalina , Dash Nillamadhab , Swarnkar Tripti , Misra Rachita
Published: November 2020

Classification is one of the most active research and application areas of artificial neural networks (ANN). One of the difficulties in using ANN is to find the most suitable combination of training, learning and transfer function for classification of data sets with increasing number of features and classified sets. In this paper we have studied the effect of different combinations of functions while using artificial neural network as a classifier and analyzed the suitability of these functions for different kinds of datasets. The appropriateness of the proposed work has been determined on the basis of mean square error, rate of convergence, and accuracy of the classified dataset. Our inferences are based on the simulation results over the datasets used.
Peningkatan Produktivitas Kerja Karyawan Melalui Semangat Kerja
Authors: Muliadi Muliadi
Published: November 2020

Focus of this study is to discuss Employee Productivity Improvement through work spirit. The purpose of this research is to study the impression of the work spirit on increasing employee productivity at the Marisa Unit Prosperous Cooperative in Pohuwato Regency. Research is participatory research, using questionnaires as research instruments and using simple regression analysis. The results showed that the work spirit was positive and significant towards work productivity of 0.569 (56.9%), while 43.1% did not discuss the model or not
Bimbingan Agama Terhadap Tindak Kriminal
Authors: Khahar Abdul
Published: November 2020

The gap between religious norms or teachings and daily behavior is a sign of a multidimensional crisis. One impact is the increasingly widespread crime that occurred in the midst of society, both successfully covered by print and electronic media or other unpublished crimes. Crime is not a hereditary event (inherited from birth, inheritance), nor is biologically inherited. Criminal behavior that can be done by women or men, can take place at any age of children, adults or elderly. Crimes can be committed consciously that is fully considered, planned and directed at one specific purpose in a truly conscious manner. Also, it can be done semi-consciously, for example driven by intense impulses, wracked by very strong coercive impulses (compulsions), and by strong obsessions. Crimes can be done unconsciously at all, for example forced to defend his life, someone must react fighting even forced to strike back. Modern societies with middle to upper economic levels often foster high material aspirations and are often accompanied by unhealthy social ambitions.