bluuebunny/crossref_metadata_2025 huggingface dataset:
EPIDEMIOLOGY OF HIV INFECTION: THE REALITY OF CLINICAL PRACTICE
Authors: Kobyakova O. S. , Deev I. A. , Lukashova L. V. , Kulikov E. S. , Plotnikova Y. K. , Skudarnov S. E. , Chernova O. E. , Abdullova N. F. , Chernov A. S. , Dmitriev S. V. , Tyufilin D. S. , Pimenov I. D. , Remeeva E. V. , Filatova E. N.
Published: May 2020

Objectives. This work aims to provide retrospective analysis of socio-economic, demographic and clinical features of patients with HIV infection in 5 regions of Russian Federation with high prevalence of HIV infection (Krasnoyarsk, Tomsk, Irkutsk, Ulyanovsk Region, Samara Region).

Materials and methods. A study was a part of the project «Natural and Clinical Course of HIV Infection in the Russian Federation». The protocol of study included a retrospective analysis of the regional Centers for the Prevention and Control of AIDS registers and medical records of patients. Inclusion criteria was a veriﬁed diagnosis of HIV infection. Diagnosis should be made by 01/01/2015 at the latest.

Results. Demographic and socio-epidemiological parameters, clinical manifestations, immunological aspects and the status of antiretroviral therapy in the studied cohort were evaluated. The results of the analytical study allowed us to present a modern proﬁle of the HIV-infected population.

Discussion. The analysis showed the prevalence of socially adapted people of working age (30–39 years), the predominance of the parenteral route of HIV infection associated with intravenous drug use in men and the activation of the sexual route of HIV infection in a cohort of women, and other features of HIV epidemiology. Results of analytical work reﬂect the situation of HIV infection in the Russian Federation, justifying the need for further research in this area and implementing effective prevention strategies into practice.
Análisis de indicadores de innovación para una muestra de empresas manufactureras de Montería (Colombia)
Authors: Lorduy Herrera Orlando Mauricio , Rangel Bolaños Jaime Eliécer
Published: May 2020

Este trabajo busca caracterizar los procesos de innovación generados por las empresas manufactureras de la ciudad de Montería en el departamento de Córdoba, Colombia, tomando como referente la teoría neoevolucionista, la cual entiende la motivación para innovar como un proceso schumpeteriano de destrucción creativa. Para alcanzar este objetivo se recurre a un instrumento tipo encuesta que sigue los lineamientos establecidos por los manuales de Oslo, de Bogotá, y las encuestas de innovación (EDIT) implementadas por el DANE en Colombia. Se encuentra que las empresas manufactureras de la ciudad son innovadoras en sentido amplio, esgrimen estrategias de carácter defensivo y realizan actividades tecnológicas que representan innovaciones, más para la empresa o para el mercado local.
Gobernar, (es) capturar y colonizar: tercer ciclo de neoliberalización en la política agraria Argentina
Authors: García Ariel
Published: May 2020

En este artículo se considera que los ciclos de neoliberalización deben enmarcarse en el estudio de la articulación dinámica y polifacética entre agentes económicos y dispositivos estatales. El objetivo es analizar las características del tercer ciclo de neoliberalización (2015-2019) en la política agraria argentina en relación a su desestructuración y reestructuración excluyente. A partir de un enfoque de triangulación metodológica, se presenta como referente empírico la dinámica de la política agraria instrumentada desde dos entidades gubernamentales: el Ministerio de Agroindustria (degradado a Secretaría en 2018) y el Instituto Nacional de Tecnología Agropecuaria (INTA). Específicamente, se identifican procesos de captura y colonización de la dirección de ambas entidades por parte de organizaciones de interés que responden a elites económicas del sector agroindustrial.
FÁBRICAS RECUPERADAS POR TRABALHADORES: PRODUZINDO O COMUM NA ARGENTINA
Authors: Nemirovsky Gabriel Gualhanone , Novaes Henrique Tahan
Published: May 2020

O presente artigo tem o objetivo de expor a produção do comum sob o horizonte da luta de classes na Argentina a partir da quadra histórica atravessada entre os anos de 2001-2002. Partindo-se do materialismo histórico, identificou-se o comum como resultante de uma soberania territorial-popular na qual revelou a centralidade da recuperação de fábricas por trabalhadores em associação com movimentos populares urbanos para a construção de intercâmbios de solidariedade e autonomia em direção de uma proposta de sociabilidade colocada em imediato antagonismo ao capital e seus imperativos.
Fluorose dentária em escolares de quatro cidades brasileiras com e sem água artificialmente fluoretada
Authors: Maltz Mariza , Farias Claudia
Published: May 2020

O objetivo do trabalho avaliar a prevalência de fluorose dentária em escolares de cidades brasileiras com e sem água de consumo artificialmente fluoretada, no ano de 1987, isto é, anteriormente ao uso disseminado de dentifrícios fluoretados no Brasil. Foram examinadas 435 crianças (8-9 anos) de 4 cidades localizadas em duas regiões com condições climáticas distintas: uma com clima subtropical (Porto Alegre e Arroio do Tigre - RS) e outra com clima tropical semi-árido (Brasília - DF e Luziania - GO). Em cada região foi avaliada a prevalência de fluorose (índice de Thylstrup e Fejerskov, 1978) em uma cidade com flúor adicionado artificialmente à água e em uma cidade sem flúor na água. Obervou-se uma grande variação na concentração de flúor nas águas de abastecimento das cidades com água artificialmente fluoretada. As médias e desvios padrão das concentrações de flúor na água de abastecimento de Porto Alegre, no período de 1979 à 1987, variaram de 0,45+-0,26 ppm F à 0,96+-0,11 ppm F. Houveram interrupções na fluoretação das águas, sendo o ano de 1981 o que apresentou mais meses sem flúor na água (4 meses). Não foi possível obter dados de fluoretação das águas de abastecimento de Brasília no período de 1981 a 1985, entretanto, os dados de 1986 a 1988 demonstram também uma grande variação nas cocentrações de flúor na água (0,318+-0,142 ppm F à 0,72+-0,274 ppm F. A prevalência de fluorose dentária foi praticamente em Porto Alegre (7,7%, clima subtropical) sugere influência das condições climáticas sobre a prevalência da fluorose dentária. A severidade da fluorose foi baixa (grau máximo=escore ITF2). A prevalência e severidade de fluorose foi bastante baixa nas duas cidades com água artificialmente fluoretadas, sugerindo que somente o consumo de água artificialmente fluoretada, nas concentrações utilizadas, não causa alta prevalência de fluorose dentária mesmo em cidades com clima tropical semi-árido.
Contribuição ao estudo da técnica da diafanização
Authors: Fachin Eliane Vianna Freitas , Rossi Júnior Alberto , Duarte Tatiana Selliach
Published: May 2020

A anatomia dos canais radiculares é altamente complexa e variável, sendo o conhecimento deste sistema de fundamental importância ao êxito das manobras endodônticas. A técnica da diafanização permite observar, por transparência, a diversificada anatomia dos canais radiculares, revelando o intrincado de canais, suas curvaturas, interligações etc. Com o auxílio dessa técnica, o presente estudo teve por objetivo observar a anatomia interna dos diferentes grupos dentários quanto ao número e orientação dos canais, estabelecer o tempo de cada fase do processo de diafanização e sua relação com o peso do elemento dentário estudado e divulgar a técnica da diafanização como metodologia científica para futuros experimentos. Foram selecionados 70 dentes, divididos em 7 grupos (incisivos inferiores e superiores, canino, pré-molares inferiores e superiores e molares inferiores e superiores) de 10 dentes cada um, sendo estes submetidos ao processo de diafanização. A partir dos resultados obtidos observou-se que os achados morfológicos estão em conformidade com o já descrito em vasta literatura. Com relação ao tempo médio de desmineralização de cada grupo dentário, nota-se que será maior à medida que o peso médio do grupo dentário se eleva. A técnica da diafanização mostrou-se eficaz, de fácil execução, baixo custo, permitindo obter uma visão tridimensional da complexa anatomia dos canais radiculares.
Kafka'nın "Melezleme"Sindeki Bağlaşıklık Ölçütleri
Authors: Aras İnci
Published: May 2020

Sözcükler ve tümceler arasındaki bağıntılardan yola çıkarak dile bir metin olarak yaklaşan metindilbilim, yedi ölçütten hareket etmektedir: bagˆlaşıklık, bağdas¸ıklık, amaçlılık, durumsallık, kabul edilebilirlik, bilgisellik ve metinler arası ilişki. Bu ölçütlerden küçük ölçekli yapı kategorisinde yer alan ve sözcüksel ve dilbilgisel olarak ikiye ayrılan bağlaşıklık, metin yüzeyindeki sözcük ve tümce arasındaki anlamsal ilişkiyi somut boyutuyla incelemektedir. Yüzey metnin doğrudan kendisine yönelik olan bağlaşıklık, bu noktada en önemli metinsellik ölçütü olarak karşımıza çıkmaktadır. Metindilbiliminin kriterleri çerçevesinde gerçekleştirilen bu çalışmanın konusunu oluşturan da Kafka’nın “Melezleme” adlı öyküsündeki bağlaşıklık düzeneklerinin çözümlenmesidir ve bu şekilde incelenen öykünün küçük ölçekli yapısına ışık tutulmasıdır.
Türkülerde Ekolojik Boyut: Derin Ekoloji Yaklaşımı Çerçevesinde Bir İnceleme
Authors: Yalçın Olgun
Published: May 2020

Bu makalede seçmiş olduğumuz türkü örneklerinde ekolojik boyut tartışılmıştır. “Evin/evde olmanın bilimi” anlamına gelecek şekilde “oikos/ev” ve “logia/bilim” terimlerinden oluşan ekoloji kavramının insanın içerisinde yaşadığı doğal ve kültürel ortamın tümünü kapsayan anlam içeriğine evirilmesi çalışmamızın çerçevesini oluşturmuştur. Bu bağlamda insanın evde olmasını, yeryüzünde olması şeklinde ele alarak, sözlü şiir türü olarak türkülerin içerdiğini düşündüğümüz “dünyada/doğada olma”yla ilgili düşünce, inanç ve yaklaşımları ne derece içerip yansıttığını tespit etmeye çalışmak, makalenin temel amacını oluşturmaktadır. Bu kapsamda Türk halk kültürünün estetik ve iletişimsel bir yönünü oluşturan türkülerin ekolojik anlamda işlevsel boyutu halkbiliminin işlevsel kuramları çerçevesinde değerlendirilerek ekolojik kuramlardan “Derin Ekolojinin” görüşleri ışığında yorumlanmaktadır. Çalışma için veri olarak kullanılan örnek türküler, doğayla ilgili temalar içerdiğini düşündüğümüz türkülerden literatür taraması yöntemiyle elde edilmiştir. Yorumlamaya olanak sağlayan şema, müziği kültürel bağlamda değerlendirme anlamında etnomüzikolojik bakış açısından yararlanılarak kurulurken, Derin Ekoloji kuramı, eko-eleştirel değerlendirmenin kavramsal çerçevesini belirlemektedir.
Práticas inovadoras caminhos para a iniciação científica na Educação Básica
Authors: Batista Gonzaga Graciele , Lima de Oliveira Elaine Cecília
Published: May 2020

Este artigo apresenta um relato de experiência de projetos inovadores que envolvem as quatro áreas do conhecimento (Ciências da Natureza, Ciências Humanas, Matemática e Linguagens), com o intuito de compartilhar ações para a inclusão da iniciação à pesquisa científica em uma instituição particular católica da cidade de Betim. Buscou-se, por meio de compartilhamento da concepção, do desenvolvimento, da metodologia e dos resultados dos projetos, evidenciar os entraves e os avanços das atuações educacionais, tendo como referência a Base Nacional Comum Curricular (BNCC). A condução metodológica contemplou atividades diversificadas com fundamentação teórica, como também a valorização da diversidade cultural, sustentabilidade, pesquisa, empatia e empreendedorismo para oportunizar ao discente o protagonismojuvenil. Partindo desses ideais, desenvolveram-se atividades em cada área do saber para modificar o pensamento de reprodução do conhecimento para alcançar trabalhos significativos e atuantes no âmbito cultural e social. Compreende-se, então, que propostas diferenciadas são essenciais para um melhor desempenho discente, assim como planos produtivos para possíveis intervenções sociais de modo concreto.
Prática docente na socioeducação
Authors: Matos Rodrigues Pereira Adriana , Pereira da Silva Christina , Caliman Geraldo
Published: May 2020

Neste artigo, busca-se compreender a percepção dos professores de uma escola inserida em uma unidade de internação de adolescentes em conflito com a lei no Distrito Federal (DF) quanto às práticas do educador social que podem contribuir para a promoção do trabalho na socioeducação. O problema de pesquisa situa-se naperspectiva de identificar em que medida as competências inspiradas nos princípios da Educação Social podem colaborar para as práticas pedagógicas do docente que atua na socioeducação. Esse profissional atua com adolescentes/jovens que, além de estarem enclausurados, estão em fase de desenvolvimento. A práxis pedagógica docente na socioeducação objetiva contribuir para que o estudante perceba o ensino como uma possibilidade de transformação, que desenvolve competências e habilidades essenciais para a compreensão e a reflexão da realidade em que está inserido, com vistas à ressocialização (SILVA, 2017; NUNES; IBIAPINA, 2010). O referencial teórico propõe a integração dos dados obtidos mediante os estudos de Onofre (2015, 2016), Silva (2017), Caliman (2010, 2015), Moreira (2016), Romans, Petrus e Trilla (2003), Mioto et al. (2015), assim como os documentos oficiais disponíveis: o Estatuto da Criança e do Adolescente - Lei nº 8.069 (BRASIL, 1990), o Estatuto da Juventude - Lei nº 12.852 (BRASIL, 2013), o Sistema Nacional de Atendimento Socioeducativo - Lei n. 12.594 (BRASIL, 2012) e as Diretrizes pedagógicas para a escolarização na socioeducação (DISTRITO FEDERAL, 2014). Foi utilizada como metodologia de pesquisa para a coleta de dados a técnica de grupo focal, escolhida por propiciar uma maior articulação entre os atores envolvidos no processo de pesquisa, encorajando uma conversa aberta sobre os pontos determinados e presentes nos objetivos, facilitando a expressão de ideias e experiências dos participantes. O grupo focal foi realizado na escola de uma unidade de internação do Distrito Federal, em 2018, com dez professores. Os dados coletados demonstraram que as competências que fazem parte do educador social são de grande valia para a atuação dos professores nas unidades socioeducativas, pois os obstáculos e a realidade vivenciada pelos educadores sociais são muito próximos daquilo com que os professores das unidades socioeducativas se deparam todos os dias.
A vista de um ponto
Authors: De Andrade Silva David José , Felix de Almeida Leonardo
Published: May 2020

O presente trabalho tem por objetivo apresentar e debater o relato de experiência de um estudante do curso Técnico em Informática do Ensino Médio Integrado do campus Jacarezinho do Instituto Federal do Paraná, cujo currículo possibilita ao corpo discente ter uma atuação mais protagonista em relação à sua própria formação. O referencial teórico proposto para conduzir a discussão apoia-se no paradigma da complexidade abordado por Morin (2014), nos estudos sobre currículos pós-modernos de Doll Jr. (1993), e, como fio condutor, utilizou-se da metáfora cunhada por Leonardo Boff (s/d) da “águia e da galinha” para provocar reflexões sobre liberdade, democracia e educação. A metodologia é essencialmente o relato do estudante participante desta produção, do qual emergem suas questões referentes à sua relação com o currículo, tanto nas esperanças quanto nas angústias vividas ao ter que assumir um papel mais proativo na escola. No que se refere aos resultados, o relato não se propõe a estabelecer verdades definitivas, mas chamar a atenção para um novo olhar sobre a educação profissional e tecnológica voltada para adolescentes do Ensino Médio Integrado.
Fractional prediction of ground temperature based on soil field spectrum
Authors: Tian An-Hong , Xiong Hei-Gang , Fu Cheng-Biao , Li Zheng-Biao , Yu Long
Published: May 2020

Ground temperature is an important physical indicator reflecting the natural
ecological environment of the Earth's surface. Soil spectrum is a
comprehensive reflection of soil properties, but there are few studies on
the prediction of ground temperature based on soil field spectrum using
fractional calculus. In this paper, the fractional derivative is used to
study the correlation between soil spectrum and ground temperature from
zeroth order to second order, and the characteristic wavelength bands are
extracted. Simulations show that the fractional approach can amplify the
difference of the soil field spectral signal. The wavelength bands for the
0.01 significance test begin with 0.6th order, while the 1.3th order sees 33
wavelength bands. Coefficients of determination of 0.7, 0.8, 0.9, 1.3, 1.4,
1.5, 1.6, and 1.7-order are all greater than 0.66, indicating that the
established model of linear stepwise multiple regression gives a better
prediction.
The input and output relationship of water resource in Jilin from 2004 to 2017
Authors: Sun Bo-Yang , Yang Xiao-Hua
Published: May 2020

Jilin is an important grain producing area and heavy industry base in China.
With the economic development and improvement of people's livelihood, water
resource issues have been becoming increasingly prominent, Jilin Province
comprehensive utilization of water resources is not efficient. The
traditional method of water consumption per 10000 Yuan of output value
cannot objectively reflect the water-use efficiency of different local
industrial structures. Therefore, this paper builds the data envelopment
analysis model based on the input-output relationship. In order to meet the
requirements of data envelopment analysis model for data analysis, this
paper introduces the principal component analysis method, and reduces the 16
water resources input indicators and 14 water resources output indicators
of Jilin Province from 2004 to 2017 to 3 input principal components and 2
output principal components. The multi-model data envelopment analysis
method is used to analyze the water-use efficiency of Jilin Province, and
the results show that with the rapid economic growth, the water resources
efficiency in 2010-2013 was relatively poor, there was a waste of water
resources, and the management technology was backward, but with the
deepening of the industrial transformation and upgrading, farming
modernization and revitalizing the strategy of the old industrial base in
Northeast China, the water-use efficiency and the water resources carrying
capacity of Jilin Province has been improved.
Effect of molten salt properties on internal flow and disk friction loss of molten salt pump
Authors: Jin Yong-Xin , Zhang De-Sheng , Sheng Xi , Shi Lei , Shi Wei-Dong , Wang Dao-Hong
Published: May 2020

Computational fluid dynamics is used to study the effect of temperature on
flow structure and disk friction loss for different working fluids in a high
temperature molten salt pump, which is used for concentrating solar power,
the velocity profile and pressure distribution in the first stage of the
pump model and the effect of the fluid property on the ring leakage, disk
friction loss as well as the shear stress distribution on shroud are
analyzed for the pure water and the molten salt with temperature 300?C and
565?C respectively. The main findings can be concluded as: the working
fluids have little effect on pump performance and internal velocity
distribution whereas the pressure of the flow field would increase with the
fluid density, with the increase of the fluid viscosity, the shear stress
inside the ring also increases and the total leakage can be eliminated
evidently, the increase of the fluid density and viscosity show the
significant responsibility for the disk friction loss, in which the fluid
viscosity also increases the disk friction loss, and the viscosity is one of
the most influential factors for the shroud shear stress and it can be
observed that the shear stress on front shroud is higher than that on the
rear shroud. It is believed that the present work can deep the
understandings of the fluid structures inside the molten salt pump, which
can provide some guidelines to improve the pump performance and optimize the
pump structure.
Numerical analysis of a steady flow in a non-uniform capillary
Authors: Li Ya-Ping , Wang Li-Li , Fan Jie
Published: May 2020

Fluids in porous media driven by the capillary force are greatly affected by
capillary?s geometrical structure. The steady flow in a non-uniform
capillary is numerically analyzed by the finite element method. With the
given initial and boundary conditions, the flow velocity distribution with
different geometrical parameters is obtained, and the result is in a good
agreement with the experimental data.
Inverse scattering transform for new mixed spectral Ablowitz-Kaup-Newell-Segur equations
Authors: Zhang Sheng , You Caihong
Published: May 2020

The inverse scattering transform plays a very important role in promoting the
development of analytical methods to solve non-linear PDE exactly. In this
paper, new and more general mixed spectral Ablowitz-Kaup-Newell-Segur
equations are derived and solved by embedding a novel time-varying spectral
parameter in-to an associated linear problem and the inverse scattering
transform. As a result, new exact solutions and n-soliton solutions are
obtained. To gain more insights into the embedded spectral parameter and the
obtained solutions, some dynamical evolutions, and spatial structures are
simulated. It is shown that the derived Ablowitz-Kaup-Newell-Segur equations
are Lax integrable and the obtained soliton solutions possess time-varying
amplitudes.
Long-term trends and spatiotemporal variations of climate comfort in China during 1966-2016
Authors: Wu Fei-Fei , Yang Xiao-Hua , Shen Zhen-Yao , Yi Ze-Ji
Published: May 2020

Climate comfort and its variability are of great importance to human comfort,
health and well-being, as humans may suffer dire consequences when they are
exposed to the environments with heat or cold stress. The climate comfort
index represented the integrated effects of meteorological variables on the
human thermal sensation. The annual and seasonal climate comfort index
values were calculated based on the monthly data of the temperature,
relative humidity, and wind speed from 591 stations in China between 1966
and 2016. Using the empirical orthogonal function analysis, the dominant
modes of climate comfort index variations were extracted by the first two
modes, which accounted for more than 50% of the total variance. The results
showed that the annual and seasonal climate comfort index values displayed
a latitudinal gradient, and increased towards the south except for the
Qinghai-Tibet Plateau. The most frequently perceived thermal sensations
were labeled as ?cold?, ?comfortable?, ?cold? and ?extremely cold?
conditions from spring to winter, respectively. For annual and seasonal
climate comfort index, the consistent increasing trend was detected in most
regions of China in the first mode. The sensitive areas were mainly located
in the central, eastern and southern China in winter, while in the northern
and western China in summer. In the second mode, the fluctuations between
upward and downward trends were observed. The sensitive areas were located
in the central China in summer, in the southwestern and southern China in
autumn, and in the northern China in winter. This study provides the
important information for the improvement of human settlement comfort.
Gas-producing characteristics of coals containing hydrogen sulfide by the thermochemical sulfate reduction
Authors: Deng Qigen , Yin Jingping , Zhang Tao , Wang Hao
Published: May 2020

It is generally considered that the thermochemical sulfate reduction is one
of the main origins of high content of hydrogen sulfide (H2S).
Thermochemical sulfate reduction simulation experiments at different
temperatures ranging from 200?C to 600?C were carried out to study the
output of gaseous products, which include CO2, CH4, H2S, and heavy
hydrocarbon (C2-6). Thermochemical sulfate reduction can promote the
formation of CH4 and H2S, and can preferentially consume heavy hydrocarbons.
The CH4 is difficult to participate in the reaction of formation H2S. The
concentrations of CO2 and hydrogen are closely related to the evolution
characteristics of H2S. The intermediate sulfur-containing products from
thermochemical reaction and thermal cracking of coals can promote the
progress of thermochemical sulfate reduction and possible formation of H2S.
He's fractional derivative for the evolution equation
Authors: Wang Kang-Le , Yao Shao-Wen
Published: May 2020

In this paper, He's fractional derivative is adopted to establish fractional
evolution equations in a fractal space. He?s fractional complex transform
is used to convent the fractional evolution equation into its traditional
partner, and the homotopy perturbation method is used to solve the
equations. Some illustrative examples are presented to show that the
proposed technology is very excellent.
Darboux transform and conservation laws of new differential-difference equations
Authors: Zhang Sheng , Liu Dongdong
Published: May 2020

Darboux transforms, exact solutions and conservation laws are important
topics in thermal science and other fields as well. In this paper, the new
non-linear differential-difference equations associated a discrete linear
spectral problem are studied analytically. Firstly, the Darboux transform of
the studied equations is constructed, and exact solutions are then obtained.
Finally, infinite many conservation laws are derived.
Conservation laws for partial differential equations based on the polynomial characteristic method
Authors: Tian Yi , Wang Kang-Le
Published: May 2020

In this paper, the direct construction method combined with the differential
polynomial characteristic set algorithm is used to complete conservation
laws of PDE. The process of the direct construction method is to solve a
system of linear determining equations, which is not easy to be solved.
This paper uses the differential polynomial characteristic set algorithm to
overcome the shortcoming, and constructs an explicit conservation law.
Numerical solution of a coupled reaction-diffusion model using barycentric interpolation collocation method
Authors: Zhang Yu , Zhang Wei , Zhao Chenhui , Wang Yulan
Published: May 2020

In thermal science, chemical and mechanics, the non-linear reaction-diffusion
model is very important, and an approximate solution with high precision is
always needed. In this article, the barycentric interpolation collocation
method is proposed for this purpose. Numerical experiments show that the
proposed approach is highly reliable.
Effect of air-flow parameters on the morphology of nanofibrous yarns by blown bubble-spinning
Authors: Dou Hao , Yao Shao-Wen , Meng Xue , Fan Wei , Li Yun-Yu , Liu Hong-Yan
Published: May 2020

Blown bubble-spinning was recently explored for the effective fabrication of
nanofibrous yarns in a one-step process. In this study, air-flow?s
temperature and velocity, which play the key role in the formation and
morphology of nanofibers, are investigated and optimized. The present study
offers a beneficial opportunity for the scale-up production of nanofibrous
yarns in the future.
Approximate analytic solution for multi-dimensional fractional wave-like equation
Authors: Sun Jian-She
Published: May 2020

The fractional power series method is used to solve 2- and 3-D fractional
wave-like models with variable coefficients. The fractional derivatives are
described in the Caputo sense. Two examples are considered to show the
effectiveness and convenience of the method.
Numerical Comparison of Planar and Micro-Tubular Solid Oxide Fuel Cells
Authors: İLBAŞ Mustafa , ÇİMEN Fethi Mustafa , KÜMÜK Berre
Published: May 2020

Solid oxide fuel cell (SOFC) is a highly efficient power generation system that can be designed in many different geometries including planar and tubular types of fuel cell. Although their operating performance is based on the same principles, parameters may be unique for each geometry. This study investigates numerically effects of cell configuration on performance by developing a finite element method (FEM) based SOFC models. The effects of configuration on the fuel cell are investigated in terms of voltage, the average cell current density, and the average cell power. These effects are illustrated with polarization and power curves by using COMSOL software. As the most convenient results of this study, although both types have their own advantages, it can be concluded that the performance of the SOFC increases with the planar geometry compared to micro-tubular type under the studied operating conditions.
Thematic Geovisualization of the Data Profile of Kaligesing, Purworejo, Central Java
Authors: Sudaryatno Sudaryatno , El-Yasha Shafiera Rosa , 'Afifah Zulfa Nur'aini
Published: May 2020

The scientific field has a variety of purposes, one of which is the presentation of data and information which can be used by other parties to support their decision making. Moreover, the information is presented spatially. This research aims to map the data profile of Kaligesing district to establish the region’s potential through thematic geovisualization of its data profile, such as slopes, land use, livelihoods and population. The primary data were obtained from visual interpretation of remote sensing images to extract land use information, and DEM processing to extract slope information. Secondary data were provided by the Kaligesing district government. In order to build tiered spatial modelling, each thematic map was classified and weighted according to its contribution to the potential of the region. Based on this modelling, each village was given a compilation of weights, which were used as a basis for regional potential analysis. From the results of the thematic mapping, Kaligesing has three villages that have the potential for development in the agricultural, trade and service sectors, supported by the potential of human resources, and the abundant non-residential land available.
Species Distribution of Styrax sumatrana in North Sumatra using Maxent Modelling Approach
Authors: Saputra Muhammad Hadi , Sagala Saut Aritua Hasiholan , Lee Han Soo
Published: May 2020

Styrax sumatrana is the prestigious tree from North Sumatra. The resin which is a product from this tree has high demand and take a role as the primary income for farmer around the forest. However, the climate change along with the land conversion, threatens the species distribution . This paper aims to analyse the variable that contributes to Styrax sumatrana distribution and predict the potential distribution area of the species in North Sumatra Province . Several variables, such as elevation, slope, aspect, climate condition and land use land cover (LULC), were used to analyse the contribution for Styrax sumatrana distribution. The analysis uses the Maximum entropy model to examine the variable contribution for species distribution. The result shows that the mean temperature of the coldest quarter has a higher contribution for species distribution followed by elevation and LULC. The climate condition has a great impact by 28.5% than the other variable. The potential area that is suitable for Styrax sumatrana distribution was 8.91% or around 663,221.94 ha from a total of region.
A Comparative Study of various Indices for extraction urban impervious surface of Landsat 8 OLI
Authors: Hidayati Iswari Nur , Suharyadi R
Published: May 2020

Impervious surface is one of the major land cover types of urban and suburban environment. Conversion of rural landscapes and vegetation area to urban and suburban land use is directly related to the increase of the impervious surface area. The impervious surface expansion is straight-lined with decreasing green spaces in urban areas. Impervious surface is one of indicator for detecting urban heat islands. This study compares various indices for mapping impervious surfaces using Landsat 8 OLI imagery by optimizing the different spectral characteristics of Landsat 8 OLI imagery. The research objectives are (1) to apply various indices for impervious surface mapping and (2) identifies impervious surfaces in urban areas based on multiple indices and provide recommendations and find the best index for mapping impervious surface in urban areas. In addition to utilizing the index, land use supervised classification method, maximum likelihood classification used for extracting built-up, and non-built-up areas. Accuracy assessment of this research used field data collection as primary data for calculating kappa coefficient, producer accuracy, and user accuracy. The study can also be extended to find the land surface temperature and correlate the impervious surface extraction data with urban heat islands.
Políticas educativas nos tempos actuais: desafios e paradoxos
Authors: Benavente Ana , Correia Sónia Vladimira
Published: May 2020

Este artigo propõe-se partilhar uma reflexão crítica sobre as políticas educativas na atualidade fundamentando tal reflexão na experiência vivida em organizações internacionais, no trabalho realizado em vários domínios da atividade académica e, evidentemente, em trabalhos de autores cujas publicações acompanhamos, com particular destaque para a nossa área de referência, a sociologia. Parece-nos ser de fundamental importância, para a análise das políticas educativas, a sua contextualização nas sociedades atuais e nas suas características. É tempo de resgatar as relações Educação (formal e não formal) e Sociedade. A transferência de centros de poder na definição de políticas educativas, entre o nível nacional e o global, com particular enfoque para o papel de organismos internacionais, os desafios da educação na atualidade e realidades desencontradas que nos interpelam, estarão no centro deste texto. Vivemos tempos incertos que nos suscitam muitas questões críticas.  Centramo-nos nas que estão ao nosso alcance e  profissional.
KAJIAN UNSUR INTRINSIK DAN EKSTRINSIK PADA PENULISAN PUSTAHA LAKLAK PODA NI TABAS NA RAMBU DI PORHAS
Authors: Nasoichah Churmatin , Nababan Manguji , Karo Sekali Mehammat Boru , Sibarani Tomson
Published: May 2020

Pustaha Laklak Poda Ni Tabas Na Rambu Di Porhas merupakan karya sastra masyarakat Mandailing yang isinya tentang mantra. Terdapat dua unsur dalam mengkaji karya sastra yaitu unsur intrinsik dan unsur ekstrinsik. Permasalahan penelitian ini adalah bagaimana bentuk unsur intrinsik dan ekstrinsik Pustaha Laklak Poda Ni Tabas Na Rambu Di Porhas? Tujuannya untuk mendeskripsikan unsur intrinsik dan ekstrinsik naskah kuno tersebut. Metode penelitian yang digunakan adalah metode deskriptif kualitatif. Dari hasil penelitian diketahui bahwa pustaha laklak ini bertema nasihat dari mantra Rambu Di Porhas untuk melawan musuh. Naskah kuno ini memperlihatkan bahwa penulis merupakan orang yang pintar, sangat penting dan berpengaruh dalam kegiatan ritual. Dari sisi tipografi, naskah ini ditulis menggunakan aksara Batak (tulak-tulak). Tidak ditemukan pemenggalan kata dan jeda. Enjambemen pada naskah ini tetap terlihat meskipun tidak sesuai dengan baris ataupun tanda baca. Akuilirik dan sekaligus penulis naskah ditemukan dengan adanya penggunaan kata ganti orang pertama tunggal dan kata ganti milik orang pertama tunggal. Rima tidak ditemukan pada naskah ini. Citraan penulis digambarkan sebagai orang yang memiliki pengetahuan luas dan hebat. Ragam bahasa yang digunakan adalah hata sibaso atau hato hadatuan. Pustaha ini ditulis di Mandailing pada waktu pengaruh agama Islam dan kolonial di Mandailing namun masyarakatnya masih menganut kepercayaan roh leluhur. Kebiasaan perang antar huta atau etnis lain juga tergambar jelas dari isi pustaha yang sebagian besar berisi mantra dan ramalan.
Idioms in the National News Rubric Category of Education on cnnindonesia.com
Authors: Pratiwi Heppy Atma
Published: May 2020

Idioms are basically often used by speakers of language in communicating with the wider community. The use of idiom is intentionally done primarily to declare something indirectly to the other person. Many idiom words are often found both in print media, electronic media, and online media that has not understood its meaning. Society only review a little of the meaning he read without deepening the intent and content of the reading read. The idiom’s word is very difficult to understand cognitively because it requires a broad understanding in a sense of its own. This study aims to determine the form of idiom and meaning of idiom used in the national news section of the news column of the type and form of idiom in cnnindonesia.com. This research is descriptive which describes the description of object and result of study in narrative form. Based on the type of idiom, the use of a full idiom of 18 with a percentage of 40% while the idiom partially as much as 27 with a percentage of 60%. In this case, news writers are more likely to use a partial type of idiom.Keyword: idioms, news, education, online media
PENGARUH PENGGUNAAN WEBTOON TERHADAP KETERAMPILAN MENULIS PANTUN
Authors: Nuratikah Nuratikah
Published: May 2020

Penelitian ini dilatarbelakangi oleh minimnya hasil belajar siswa pada pelajaran bahasa Indonesia terutama pada keterampilan menulis pantun. Tujuan penelitian ini adalah untuk melihat pengaruh Webtoon terhadap keterampilan menulis pantun. Metode yang digunakan adalah True Experimental Design dengan Posttest-Only Control Design, dengan hipotesis terdapat pengaruh penggunaan  Webtoon terhadap keterampilan menulis pantun di kelas VII SMP Islam Ruhama Ciputat. Hasil penelitian ini menunjukkan bahwa terdapat pengaruh yang signifikan penggunaan Webtoon terhadap keterampilan menulis pantun siswa kelas VII SMP Islam Ruhama Ciputat. Hal ini terbukti dari hasil perhitungan thitungsebesar 5, 732 lebih besar dari pada ttabelsebesar 2,00856. Dengan demikian dapat disimpulkan bahwa penggunaan Webtoon memberikan pengaruh terhadap keterampilan menulis pantun siswa kelas VII SMP Islam Ruhama Ciputat. Hasil penelitian ini diharapkan dapat bermanfaat kepada pihak-pihak terkait seperti kepala sekolah, guru, siswa, dan peneliti selanjutnya.Kata kunci: Webtoon, menulis pantun,  hasil belajar
PEMBENTUKAN KARAKTER MELALUI PEMBELAJARAN SASTRA BERBASIS EKOLOGIS DALAM KUMPULAN CERITA RAKYAT NUSANTARA
Authors: Rahman Hasrul , Wirawati Denik , Sidiq Julivan Nur Ahmad
Published: May 2020

Pembelajaran sastra selalu memiliki berbagai macam metode yang dapat digunakan dalam proses kegiatan belajarnya. Melalui pembelajaran sastra, pendidik dituntut untuk lebih kreatif sekaligus peka dalam memilih materi yang menarik untuk disampaikan. Para pendidik saat ini kurang memperhatikan hal tersebut. Para pendidik hanya terpaku pada target-target yang akan disampaikan sesuai materi dan RPP yang sudah ada sebelumnya, tanpa berpikir lebih jauh mengenai hal-hal lain yang dapat dijadikan sumber pembelajaran. Padahal di era seperti sekarang ini, banyak hal yang bisa dimanfaatkan melalui kegiatan pembelajaran sastra untuk membentuk karakter bangsa. Pembentukan karakter dapat dilakukan dengan cara memilih buku-buku sastra yang kaitannya dengan masalah kekinian, misalnya saat ini sedang banyak terjadi kebakaran hutan, sungai yang dipenuhi sampah, dan lain-lain. Problematika tersebut tentunya dapat dikaitkan dengan materi ajar yang akan disampaikan. Dengan mengedepankan kepekaan terhadap hal-hal yang sedang terjadi, tentunya proses pembelajaran sastra akan berjalan dengan baik. Salah satunya mangaitkan pembelajaran sastra berbasis ekologis dengan kumpulan cerita rakyat. Selama ini para pendidik saat mengajarkan materi cerita rakyat hanya sebatas pada isi cerita dan tokoh-tokoh yang terlibat di dalamnya sehingga metode seperti ini sudah seharusnya dicermati kembali agar pembelajaran sastra kedepannya akan lebih menarik dan menyenangkan. Dengan adanya pembelajaran sastra berbasis ekologis peserta didik dituntut untuk menemukan pesan yang berkaitan dengan hubungan antara manusia dan lingkungannya dalam cerita tersebut. Hal ini tentunya sangat bermanfaat bagi peserta didik agar mereka tahu tentang pentingnya menjaga lingkungan..Kata kunci: Pengajaran Sastra, Sastra Ekologi, Cerita Rakyat Nusantara
PENGEMBANGAN BUKU BERBASIS ENSIKLOPEDIA UNTUK MATA KULIAH BUDAYA INDONESIA PROGRAM DARMASISWA
Authors: Hermanto Hermanto , Sudaryanto Sudaryanto , Febriana Cindy
Published: May 2020

Minat mahasiswa asing untuk belajar bahasa Indonesia sampai saat ini terus berkembang, hal ini menjadi peluang dan tantangan bagi pengelola lembaga pendidikan. Hal tersebut tentu berdampak pada kebutuhan materi ajar. Penelitian ini mencoba untuk mengembangkan materi ajar berbasis ensiklopedia tentang info fakta unik Indonesia dan budaya Indonesia. Tujuan penelitian ini adalah untuk mendeskripsikan proses pengambangan buku ensiklopedia bagi mahasiswa asing program darmasiswa di Universitas Ahmad Dahlan. Jenis penelitian yang digunakan adalah jenis penelitian pengembangan model ADDIE yang dikembangkan oleh Dick dan Carry. Tahapan ADDIE tersebut adalah; Analysis, Design, Development, Implementation, dan Evaluation. Data diperoleh melalui wawancara, observasi, validasi produk oleh ahli,dan uji coba oleh terhadap mahasiswa program darmasiswa. Namun pada tahun pertama penelitian ini fokus pada tahapan pengembangan buku ensiklopedia. Data hasil wawancara dianalisis dengan teknik analisis kualitatif. Data hasil validasi produk dan hasil penilaian uji coba akan menggunakan deskriptif kuantitatif. Hasil penelitian menunjukkan bahwa jenis buku ensiklopedia yang berisi data fakta unik Indonesia dan budaya Indonesia tepat untuk dikembangkan, karena belum ada buku yang secara khusus menginformasikan info unik dan budaya Indonesia untuk mahasiswa asing. Rancangan buku 99 fakta unik Indonesia dan budaya Indonesia diperoleh dari berbagai sumber reverensi yang relevan. Selanjutnya adalah pengembangan produk buku dengan judul 99 Fakta Unik dan Budaya Indonesia bekerja sama dengan penerbit K-Media. Harapan selanjutnya adalah buku tersebut mampu menjadi buku reverensi yang berkualitas bagi pemelajar asing pada umumnya dan mahasiswa darmasiswa pada khususnya
Prevalence of Hepatitis B and C Infection Among Street Children Community in Malang City
Authors: Mustika Syifa , Simatupang Charisma Dian
Published: May 2020

Background: World Health Organization (WHO) announced that during 2017, 325 million people worldwide were infected with the hepatitis B virus (HBV) or hepatitis C virus (HCV). Street children community is a part of society that is susceptible to HBV and HCV transmission, yet no data available about the prevalence. The purpose of this study was to determine the prevalence of hepatitis B and hepatitis C infections in street children community of Malang during 2017.Method: This cross-sectional study was conducted in September 2017 with subjects of street children who were members of the East Java Humanitarian Network (EJHN) group. They were interviewed, got vital signs examined, and performed HBsAg and anti HCV tests using the ECLIA method.Results: There were 90 subjects, with more male than female (60%). The most frequent age range was between 21 to 30 years (35.6%). Most of them do not have permanent jobs (37.8%). The level of education varied, with 30% were at the level of primary education and 56.7% were married. There were 4.4% hepatitis B positive and 1.1% of hepatitis C positive among the subjects. Subjects with positive results had history of free sex, tattoos, and intravenous drugs abuse as the risk factors of HBV and HCV transmission.Conclusion: The prevalence of Hepatitis B and Hepatitis C in the population of street children in Malang city, East Java, were 1.1% and 4.4%, respectively. The most common risk factors were free sex and tattoos.
The Efficacy of Generic Daclatasvir-Sofosbuvir as Pan-Genotypic Regiment for Hepatitis C Virus (HCV) Infected Patients in Bandung Indonesia
Authors: Bestari Muhammad Begawan , Nugraha Eka Surya , Abdurachman Siti Aminah
Published: May 2020

Background: Direct-acting antivirals (DAAs) have altered the prognosis of hepatitis C virus (HCV) disease but its access is limited by socioeconomic factors. Generic DAAs with lower prices were available in Indonesia in 2016. The aim of this study was to determine the efficacy of generic daclatasvir-sofosbuvir.Method: We performed an observational study from January to December 2016 in a tertiary care center in Bandung, Indonesia. Data were obtained from medical registry. All study subjects received oral daclatasvir (60 mg, once daily) and sofosbuvir (400 mg, once daily) for 12 weeks for noncirrhotic chronic HCV patients and 24 weeks for cirrhotic chronic HCV patients. The main endpoint criterion was sustained virologic response at post-treatment week 12 (SVR12).Results: We enrolled 32 subjects (20 noncirrhotic, 12 cirrhotic). All noncirrhotic subjects (eighteen were previously untreated patients) and cirrhotic subjects (all were previously untreated patients) achieved SVR12 of 100%. These high rates of SVR12 were observed in all patients with HCV infection regardless of the genotype. ALT normalization was achieved in all patients 12 weeks after therapy. The most common adverse events were fatigue and nausea.Conclusion: Once-daily oral generic daclatasvir-sofosbuvir showed good efficacy and safety. Furthermore, it yielded a high rate of SVR among patients infected with HCV of all genotypes.
Hubungan Higiene Sanitasi Dengan Kandungan Escherichia Coli Pada Es Batu Industri Rumah Tangga di Tepi Jalan Wahid Hasyim 2 Kecamatan Sempaja Kota Samarinda Tahun 2015
Authors: Suwignyo Suwignyo , Rachim Abdul , Sapitri Arizal
Published: May 2020

Es batu merupakan air yang didinginkan pada suhu di bawah 0 °C dan digunakan sebagai bahan pelengkap minuman. Es batu banyak dijual termasuk di tepi jalan Wahid Hasyim 2 Kecamatan Sempaja. Berdasarkan survey pendahuluan didapatkan 5 sampel es batu positif mengandung Escherichia coli. Tujuan dari penelitian ini adalah untuk mengetahui hubungan higiene sanitasi dengan kandungan Escherichia coli pada es batu industri rumah tangga di tepi jalan Wahid Hasyim Kecamatan  Sempaja  Kota  Samarinda.  Jenis  penelitian  ini  adalah  penelitian  kuantitatif  dengan metode survey. Populasi dalam penelitian ini adalah penjual es batu di tepi jalan Wahid Hasyim 2Kecamatan Sempaja Kota Samarinda berjumlah sebanyak 50 orang. Penentuan besar sampel menggunakan tabel sampel Krejcie dan Morgan sehingga didapatkan sampel sebanyak 44 orang. Teknik pengambilan sampling dilakukan dengan cara Cluster Random Sampling. Instrumen yang digunakan adalah kuisioner, observasi dan uji laboratorium. Analisis data dilakukan secara univariat dan bivariat ( menggunakan uji fisher p=0,05). Berdasarkan hasil pengolahan data menggunakan uji Fisher Exact, didapatkan hasil bahwa ada hubungan pemilihan air bahan baku es batu (p=0,03) dan penyimpanan air bahan baku es batu dengan kandungan Eschericia coli  dalam es batu (p=0,03). Tidak ada hubungan antara pengolahan air bahan baku es batu dengan kandungan Eschericia coli dalam es batu (p=0,15). Saran yang diberikan terhadap penjual es batu sebaiknya tetap menjaga higiene sanitasi pemilihan, pengolahan dan penyimpanan es batu.
Práticas de letramentos vernaculares com literatura: interações desenvolvidas por acadêmicos de Letras em ambientes virtuais
Authors: Roepke Jacqueline Leire , Fistarol Caique Fernando da Silva , Fischer Adriana
Published: May 2020

Práticas de letramentos vernaculares são efetivadas, na vida pessoal, por iniciativa e interesses próprios. Nessas práticas, a internet tem transformado modos de acesso e de produção. Partindo dessas considerações, busca-se compreender práticas de letramentos vernaculares com literatura desenvolvidas por acadêmicos de um curso de Letras em ambientes virtuais. O presente trabalho possui como marco teórico principal os Novos Estudos dos Letramentos. Trata-se de pesquisa dotipo etnográfica, realizada durante o segundo semestre de 2016, tendo como sujeitos três acadêmicos. Os dados foram gerados por observação participante, questionário e entrevista. As análises permitem constatar que acadêmicos se dedicam às práticas vernaculares, ainda que estas não sejam reconhecidas por instituições educacionais. Acadêmicos de Letras aglutinam práticas vernaculares às práticas institucionalizadas, sinalizando, assim, que a linha de divisa não é rigidamente demarcada.Nesse sentido, instituições educacionais podem refletir sobre modos de tornar as práticas de letramentos, para que façam mais sentido aos estudantes.