bluuebunny/crossref_metadata_2025_split huggingface dataset:
Histomorphological Effects of Cottonseed Oil on Testes in Adult Male Wistar Rats
Authors: Chris-Ozoko Lilian Ebele , Okpe Onome , Iju Wilson Josiah , Oyem John Chukwuma 
Published: December 2018

Cottonseed oil is an extract from the seeds of cotton plant, that is rich in protein, carbohydrate and fiber.
The objective of the research was to study the effect of cottonseed oil on the histology of the testis.
Materials and methods. Twelve adult male Wistar rats weighing 200 – 250g, were randomly sorted into four groups (I - IV), each containing three animals. Cottonseed oil was administered orally to the experimental animals by means of an orogastric tube. The rats in Group I (the control group) received standard rat pellet and oral normal saline ad libitum only. The animals in Groups II, III, and IV received 0.2 ml, 0.6 ml and 1.0 ml of cotton seed oil per body weight respectively. On the 21st day, the animals were sacrificed by cervical dislocation. The testes were excised and, then, fixed with appropriate fixatives for routine tissue processing.
Results. The results revealed an increase in the luminal diameter of seminiferous tubules, a decrease in the Leydig cell population, the disorientation of spermatogenic series and their detachment from the germinal epithelium.
Conclusions. The present study demonstrated that oral administration of cottonseed oil to male rats displayed a deleterious effect on their testis by disrupting spermatogenesis and the histological architecture of the testis.
Interest of Surgical Treatment of Per-Trochanteric Fractures by Gamma Nail: About 100 Cases
Authors: Mourafiq Omar , Benyias Youssef , Benomar Hicham , Kamenan Valery , Boukhriss Jalal , Chefry Bouchaib , Bouabid Ahmed Salim , Bencheba Driss , Boussouga Moustapha 
Published: December 2018

Gamma nail closed osteosynthesis has surpassed several methods previously used in the treatment of fractures in the trochanteric region.
The objective of the research was to carry out an epidemiological study and to assess the evolutionary profile of patients with per-trochanteric fracture treated with gamma nail.
Materials and methods. In this retrospective study, we report the experience of the Traumatology-Orthopedics Service II of the Military Teaching Hospital Mohamed V-Rabat, in the treatment of per-trochanteric fractures by gamma nail in 100 cases, collected between January 2011 and March 2016.
Results. The average age of our patients was 68 years, with a male predominance of 67%. The most reported etiology (92% of cases) was simple drop. Stable fractures were the most common (81%), with a predominance of simple per-trochanteric fractures. The average response time was 24 hours, the average duration of the surgical procedure was 45 minutes. The rate of infectious complications was 1%; the rate of mechanical complications was 1%. The functional results were excellent and good in 95% of cases. The average consolidation time was 8 weeks.
Conclusions. Trochanteric fracture is a delayed emergency which is seen primarily in the elderly. The gamma nail represents one of the latest improvements in implants for the treatment of these fractures. We report a series of 100 cases of trochanteric fractures treated surgically by gamma nail. The functional results were very encouraging compared to those reported in the literature.
PROVA BRASIL, IDEB E ESCOLAS RURAIS DO TERRITÓRIO DO PIEMONTE DA DIAMANTINABAHIA: REGULAÇÃO DO TRABALHO DOCENTE NA EDUCAÇÃO RURAL
Authors: Souza Elizeu Clementino de , Ramos Michael Daian Pacheco 
Published: December 2018

O artigo analisa a configuração da regulação do trabalho docente em escolas rurais do Território do Piemonte da Diamantina-Bahia, por meio da aplicação de avaliações externas em larga escala. Investigamos a disposição dos estabelecimentos de ensino da zona rural, do território destacado, na Prova Brasil em 2015 e refletimos sobre seus respectivos Índices de Desenvolvimento da Educação Básica (Ideb). Para isso, realizamos uma pesquisa com caráter documental nas bases de dados do Instituto Nacional de Pesquisa Educacional Anísio Teixeira (Inep). Nossos principais resultados foram: a) há uma maior participação na Prova Brasil 2015, proporcionalmente, de escolas urbanas que de escolas rurais; b) apenas 38% das escolas rurais do território investigado participaram da Prova Brasil 2015, contudo a disposição da participação no interior dos municípios é diversa e heterogênea; c) um terço das escolas rurais que participaram do exame não obtiveram nota de Ideb; d) um terço das unidades educacionais rurais avaliadas alcançaram a meta e outro um terço não alcançou e; e) nos anos iniciais do ensino fundamental o território apresenta uma disposição positiva no alcance do Ideb entre os anos de 2005 e 2017, contudo, nos anos finais do ensino fundamental será necessário uma maior atenção de alguns municípios.
PROJETO ESCOLA EM TEMPO INTEGRAL NO MUNICIPIO DE JOÃO PESSOA-PB: contextos e prática
Authors: Ferreira Ruttany Souza Alves , Rodrigues Cibele Maria Lima , Oliveira Gilvaneide Ferreira de 
Published: December 2018

O presente artigo objetiva analisar o contexto de implantação do Projeto “Escola de Tempo Integral” em uma escola de ensino fundamental na cidade de João Pessoa-PB, assim como compreender como esta política é efetivada na prática em uma escola de ensino fundamental (anos iniciais) da rede municipal. Para coleta de dados foram realizadas entrevistas semiestruturadas e observações. Como principais resultados encontrou-se que o modelo adotado em João Pessoa está centrado na ampliação do tempo, na perspectiva do aluno em tempo integral. O Projeto em tela possui visíveis influências do Programa Mais Educação. Na prática, a extensão da carga horária está atrelada à proteção social. Também se organiza a partir do discurso das avaliações padronizadas ao reforçar o estudo dos conteúdos curriculares de português e matemática, visando elevar as médias nas referidas disciplinas. Além disso, a Secretaria possui um sistema próprio de avaliação que segue a mesma lógica – o chamado Programa Escola Nota 10. Os sujeitos que desempenham funções docentes, em especial as professoras e tutoras, são cobrados para que as crianças atinjam o desempenho necessário a fim de ganhar a premiação do Programa Escola Nota 10. Desse modo, o trabalho da instituição gira em torno das normas de tal Programa.
A MODERNIZAÇÃO “EFICAZ” DA PROFISSÃO DE PROFESSOR CONFRONTADA ÀS NOVAS POLÍTICAS DE ACCOUNTABILITY
Authors: Normand Romuald 
Published: December 2018

Atualmente, a reestruturação da profissão de professor tende a se inscrever em todos os lugares na Europa no que se refere ao estabelecimento de objetivos, medidas de performance ou de eficácia, mesmo se há construções diferentes de um país a outro. A eficiência e a eficácia do corpo docente devem permitir uma melhoria dos resultados dos exames e dos testes aos alunos. A Nova Gestão Pública se funda sobre os princípios da racionalidade econômica e financeira, visando a eficiência, a eficácia e se apoiando sobre organismos reguladores (ministérios e agências) que reforçam a exigência da prestação de contas (accountability). Este acoplamento entre gestão e avaliação serve para justificar o domínio da despesa pública em educação e, mais particularmente, a racionalização do custo da gestão de recursos humanos. O artigo examina, de maneira crítica, os efeitos desta gerência da performance sobre os professores da educação, mostrando como as políticas de prestação de contas se renovam por meio de seus conteúdos e instrumentos.
ESTADO DO CONHECIMENTO DE QUESTÕES DE GÊNERO NA EDUCAÇÃO INFANTIL
Authors: Cavalcanti Fernanda Carvalho , Gurgel Paulo Roberto Holanda 
Published: December 2018

O objetivo deste artigo é analisar estudos realizados sobre questões de gênero na Educação Infantil no período de 2010 a 2015. Dissertações e teses sobre a temática foram selecionadas e, posteriormente, organizadas em quatro categorias: gênero e as representações e discursos de professoras e de professores da Educação Infantil; gênero e o professor da Educação Infantil; gênero e a educação de meninos e de meninas na Educação Infantil; gênero associado ao embelezamento na Educação Infantil. As fontes utilizadas foram relatórios de pesquisa disponíveis no banco de teses e dissertações da Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (Capes). Conforme critérios estabelecidos, 20 trabalhos foram selecionados: quatro teses e 16 dissertações. As análises indicam escassez de pesquisas sobre a temática além da necessidade de um olhar para a formação de professoras e de professores, assim como a formulaçãode políticas públicas para a superação das desigualdades e estereótiposde gênero em todas as relações que se estabelecem no âmbito da Educação Infantil.
CULTURA DE ALUNOS ADOLESCENTES DO ENSINO MÉDIO: dinâmicas e contextos
Authors: Sant’Ana Ruth Bernardes de 
Published: December 2018

Este artigo empreende uma releitura de publicações consideradas relevantes no debate sobre a relação entre as culturas juvenis e as culturas escolares, com o objetivo de teorizar acerca das formas assumidas pela cultura dos alunos no interior dessa relação no Ensino Médio. A cultura dos alunos constitui um fio condutor importante para a compreensão da escola na vida da juventude numa sociedade em que a escolarização está no centro do processo de desigualdade de acesso a bens físicos e simbólicos. Assim, as questões que este trabalho procurou responder são as seguintes: O que é cultura dos alunos? Como ela se manifesta na escola de Ensino Médio em diferentes contextos sociais?
NO “FIO DA NAVALHA”: projetos de futuro de jovens em privação de liberdade
Authors: Almeida Jorddana Rocha de , Leão Geraldo 
Published: December 2018

O artigo discute os projetos de futuro de jovens em conflito com lei baseando-se nos resultados de uma pesquisa com adolescentes que cumpriam medida de semiliberdade em um município do interior de Minas Gerais. Os dados foram coletados por meio da análise de documentos, observação participante e entrevistas semiestruturadas com 16 jovens com idades entre 13 e 18 anos. As experiências juvenis, em suas múltiplas dimensões, se constituíram em um contexto sociocultural de vulnerabilidade e de relações sociais marcadas por violações de direitos sociais e de processos de desumanização. As experiências da medida socioeducativa de semiliberdade foram vivenciadas como desafiadoras, demarcadas por conflitos com os adultos e os colegas, vistas pelos participantes como situações de provações constantes. A relação com o projeto de futuro se revelou como uma dimensão distante, prevalecendo uma adesão ao tempo presente.
A EQUILIBRAÇÃO MAJORANTE EM CRIANÇAS DE EDUCAÇÃO INFANTIL: um estudo de caso
Authors: Teixeira Adriano Canabarro , Furini Caroline da Silva , Caimi Flávia Eloisa 
Published: December 2018

A programação de computadores é uma competência técnica com potencial para o desenvolvimento cognitivo humano. Nesse sentido, é fundamental que seja explorada sua aplicabilidade no contexto da educação infantil, tema raro na produção científica na área de Educação. Assim, o estudo objetivou identificar a relação entre o conceito de equilibração majorante de Piaget com as atividades de programação de computadores realizadas por crianças da educação infantil participantes do Projeto Berçário de Hackers. Os procedimentos metodológicos utilizados constituíram-se de pesquisa qualitativa, com abordagem de pesquisa-ação, envolvendo observação participante nas oficinas e videogravações. O trabalho de campo foi desenvolvido com 19 crianças de cinco e seis anos, sendo selecionados dois estudantes para uma análise mais detida. Os resultados apontam para a presença de indícios de equilibração majorante, manifestadaem regulações ativas e automáticas.
SORPTION OF Au(III) BY <i>Saccharomyces cerevisiae</i> BIOMASS
Authors: Amaria Amaria , Suyono Suyono , Sugiharto Eko , Rohmah Anis N 
Published: January 2019

Au(III) sorption by S. cerevisiae biomass extracted from beer waste industry was investigated. Experimentally, the sorption was conducted in batch method. This research involved five steps: 1) identification the functional groups present in the S. cerevisiae biomass by infrared spectroscopic technique, 2) determination of optimum pH, 3) determination of the sorption capacity and energy, 4) determination of the sorption type by conducting desorption of sorbed Au(III) using specific eluents having different desorption capacity such as H2O (van der Waals), KNO3 (ion exchange), HNO3 (hydrogen bond), and tiourea (coordination bond), 5) determination of effective eluents in Au(III) desorption by partial desorption of sorbed Au(III) using thiourea, NaCN and KI. The remaining Au(III) concentrations in filtrate were analyzed using Atomic Absorption Spectrophotometer. The results showed that: 1) Functional groups of S. cerevisiae biomass that involved in the sorption processes were hydroxyl (-OH), carboxylate (-COO-) and amine (-NH2), 2) maximum sorption was occurred at pH 4, equal to 98.19% of total sorption, 3) The sorption capacity of biomass was 133.33 mg/g (6.7682E-04 mol/g) and was involved sorption energy 23.03 kJ mol-1, 4) Sorption type was dominated by coordination bond, 5) NaCN was effective eluent to strip Au(III) close to 100%. Keywords: sorption, desorption, S. cerevisiae biomass, Au(III)
PRODUCTION AND CHARACTERIZATION OF CHITINASE ENZYMES FROM SULILI HOT SPRING IN SOUTH SULAWESI, <i>Bacillus</i> sp. HSA,3-1a
Authors: Natsir Hasnah , Patong Abd. Rauf , Suhartono Maggy Thenawidjaja , Ahmad Ahyar 
Published: January 2019

Chitinase is an extracellular enzyme which is capable in hydrolyzing insoluble chitin to its oligomeric and monomeric components. The enzyme produced by thermophilic bacteria was screened and isolated from Sulili hot spring in Pinrang, South Sulawesi, Indonesia. The gram positive spore forming rod shape bacteria was identified as Bacillus sp. HSA,3-1a through morphological and physiological analysis. The production of chitinase enzyme was conducted at various concentration of colloidal chitin at a pH of 7.0 and a temperature of 55 °C. The bacteria optimally was produced the enzyme at a colloidal chitin concentration of 0.5% after 72 h of incubation. The optimum temperature, pH and substrate concentration of chitinase were 60 °C, 7.0 and 0.3%, respectively. The enzyme was stable at a pH of 7.0 and a temperature of 60 °C after 2 h of incubation. The chitinase activities was increased by addition of 1 mM Mg2+, Ca2+ and Mn2+ ions, whereas the activities were decreased by 1 mM Co2+, Fe2+ and Zn2 ions. The molecular weight of the crude enzyme was determined using SDS-PAGE analysis. Five protein fractions were obtained from SDS-PAGE, with MWs of 79, 71, 48, 43 and 22 kDa. Keywords: colloidal chitin, thermophilic bacteria, chitinase
ACTIVATED CARBON FROM DURIAN SEED BY H<sub>3</sub>PO<sub>4</sub> ACTIVATION: PREPARATION AND PORE STRUCTURE CHARACTERIZATION
Authors: Ismail Amri , Sudrajat Hanggara , Jumbianti Desi 
Published: January 2019

Activated carbons have been produced from the natural biomaterial durian (Durio zibethinus) seed, using phosphoric acid (H3PO4) as the activating agent. The effects of impregnation ratio, activation temperature, heating rate on the carbon surface area, porosity and mass yield are presented. A two step process has been used, the first step was a low temperature impregnation at 150 °C using phosphoric acid and the second step was the carbonization at high temperatures, namely, 600 and 900 °C. The most outstanding carbon with the highest surface area of 2123 m2/g was prepared using an impregnation ratio of 2, an activation temperature of 600 °C for 4 h and a heating rate of 1 °C/min. Keywords: activated carbon, durian seed, phosphoric acid activation
CHITOSAN PREPARATION WITH MULTISTAGE DEACETYLATION OF CHITIN AND INVESTIGATION OF ITS PHYSICOCHEMICAL PROPERTIES
Authors: Junaidi Ahmad Budi , Kartini Indriana , Rusdiarso Bambang 
Published: January 2019

Study of chitosan prepared with chitin deacetylation by multistage alkali treatments has been done. Chitin was extracted from Lampung white shrimp's (Litophenaeus vannamei) shell. The FTIR spectroscopy was used to determine deacetylation degree of chitin/chitosan. Viscometry was used to determine molecular weight of chitosan. Effect of chitin deacetylation by multistage alkali treatments toward deacetylation degree and molecular weight was studied by comparingit with continuous alkali treatment. The results showed that chitosan prepared by multistage alkali treatment had higher deacetylation degree than those of obtained by continuous alkali treatment. Multistage alkali treatment does not influence the chitosan's molecular weight. Despite its significant effect on the deacetylation process, concentration of alkali does not significantly effect the process of depolimerization. Keywords: chitin, chitosan, multistage treatments, deacetylation degree, molecular weight
ADSORPTION OF GIBBERELLIC ACID ONTO NATURAL KAOLIN FROM TATAKAN, SOUTH KALIMANTAN
Authors: Sunardi Sunardi , Arryanto Yateman , Sutarno Sutarno 
Published: January 2019

Adsorption of gibberellic acid (GA3) onto raw and purified kaolin from Tatakan, South Kalimantan was investigated in this study. Purification process was done by sedimentation to obtain relative pure kaolinite. Raw and purified kaolin samples were characterized by Fourier transformed infrared (FTIR) spectroscopy and X-ray diffractometer (XRD). The adsorption process was carried out in a batch system and the effect of pH, contact time and GA3 concentration were experimentally studied to evaluate the adsorption capacity. The amount of GA3 adsorbed was determined by UV spectrophotometer. The result showed that the raw kaolin from South Kalimantan consist of 53.36% kaolinite, 29.47% halloysite, 4.47% chlorite, 11.32% quartz and 1.38% christobalite and the purified kaolin consist of 73.03% kaolinite, 22.6% halloysite, 0.77% chlorite, 1.37% quartz and 2.23% christobalite Adsorption experimental indicate that the optimum adsorption took place at pH 7 and contact time for 4 h. Adsorption of GA3 was described by the Langmuir adsorption isotherm model with adsorption capacity of 8.91 mg/g on raw kaolin and 10.38 mg/g on purified kaolin. Keywords: kaolin, gibberellic acid, adsorption
THE PERFORMANCE OF CHITOSAN-FERRIHIDRYTE MEMBRANE FOR PHOSPHATE UPTAKE
Authors: Rumhayati Barlah , Bisri Chasan , Fajarina Wahyu O. 
Published: January 2019

The uptake of orthophosphate onto the chitosan-ferrihydrite membrane has been studied. The membrane was proposed as a new binding layer of DGT technique. Membrane was prepared from a mixture of chitosan solution with ferrihydrite (FeOOH) paste and was crosslinked with glutaraldehyde. As a result, the uptake of orthophosphate was slow. The maximum adsorption capacity was reached at pH 5.0 and 8.0. It was mainly due to electrostatic attraction of phosphate ions to the protonated free amino groups of chitosan and to active sites of ferrihydrite. Desorption could be occurred optimally using 0.3 M of sulphuric acid. The absorption of SO42- ion to the protonated amino groups and the formation of ionic crosslinking could exchange and desorb phosphate ions. Ferrihydrite was eluted also by the acid. However, the eluted ferrihydrite readsorbed phosphate ions, resulted in minimizing the analysed free phosphate. Keywords: adsorption, phosphate, chitosan-ferrihydrite/glutaraldehide membrane, DGT technique
LEAD ACID BATTERY MODELING FOR ELECTRIC CAR POWER SOURCES
Authors: Kaloko Bambang Sri 
Published: January 2019

Successful commercialization of electric vehicles will require a confluence of technology, market, economic, and political factors that transform EVs into an attractive choice for consumers. The characteristics of the traction battery will play a critical role in this transformation. The relationship between battery characteristics such as power, capacity and efficiency, and EV customer satisfaction are discussed based on real world experience. A general problem, however, is that electrical energy can hardly be stored. In general, the storage of electrical energy requires its conversion into another form of energy. Electrical energy is typically obtained through conversion of chemical energy stored in devices such as batteries. In batteries the energy of chemical compounds acts as storage medium, and during discharge, a chemical process occurs that generates energy which can be drawn from the battery in form of an electric current at a certain voltage. A computer simulation is developed to examine overall battery design with the MATLAB/Simulink. Battery modelling with this program have error level less than 5%. Keywords: Electrochemistry, lead acid battery, stored energy
ESTERIFICATION OF FATTY ACID FROM PALM OIL WASTE (SLUDGE OIL) BY USING ALUM CATALYST
Authors: Usman Thamrin , Ariany Lucy , Rahmalia Winda , Advant Romi 
Published: January 2019

Esterification of fatty acids from palm oil waste (sludge oil) as biodiesel liquid base has been done by using alum [Al2(SO4)3.14H2O] catalyst. Some reaction variables like reaction time, catalyst quantity, and molar ratio of sample-reactant was applied for optimal reaction. Yield of 94.66% was obtained at reaction condition 65 °C, 5 h, sample-reactant ratio 1:20, and catalyst quantity 3% (w/w). GC-MS analysis request showed that composition of methyl esters biodiesel are methyl caproic (0.67%), methyl lauric (0.21%), methyl miristic (1.96%), methyl palmitic (49.52%), methyl oleic (41.51%), and methyl stearic (6.13%). Physical properties of synthesized product (viscosity, refraction index and density) are similar with those of commercial product. Keywords: alum, biodiesel, esterification, sludge oil
MOLECULAR DOCKING OF <p><em>D</em><em><sup>6</sup>-ANHYDROERYTHROMYCIN TO rRNA 23S Deinococcus radiodurans AND THE PREDICTION OF ITS ANTIBIOTIC POTENCY
Authors: Haryadi Winarto , Jenie Umar Anggara , Sudibyo Retno Sunarminingsih , Pranowo Harno Dwi , Wibowo Fajar Rakhman 
Published: January 2019

D6-anhidroeritromisin-A is a new derivative of erythromycin which is synthesized through biosynthetic engineering technique. The molecular docking in rRNA 23S Deinoccocus radiodurans are accomplished to determine the model and strength of binding to the target macromolecule. The molecular docking of erythromycin-A and 6-deoksieritromisin-A to the same macromolecule is used as a control. The docking result of the D6-anhidroeritromisin-A shows that it occupies the same cavity as of the experimental erythromycin-A in the same macromolecule. The binding position of D6-anhidroeritromisin-A is not exactly same as erythromycin-A and 6-deoksieritromisin-A due to the presence of D6 unsaturated double bond. However the hydroxyl group(OH) at C-6 does not have an apparent effect on the binding model to rRNA23S D. radiodurans. Keywords: D6-anhidroeritromisin-A, rRNA 23S D. radiodurans, molecular docking, antibiotic potency
ISOLATION AND STRUCTURE ELUCIDATIONS OF RESVERATROL OLIGOMERS FROM STEM BARK OF Dryobalanops lanceolata
Authors: Sahidin Sahidin 
Published: January 2019

Five resveratrol oligomers which consist of two resveratrol dimers, balanocarpol (1) and e-viniferin (2), a resveratrol trimer i.e. a-viniferin (3), and two resveratrol tetramers, vaticanol B (4), and hopeaphenol (5) have been isolated from acetone extract of the stem bark of Dryobalanops lanceolata. These compounds were isolated by vacuum liquid chromatography method. Furthermore, the compound structures were determined based on the spectroscopic evidence, including UV, IR, 1-D and 2D NMR spectra, and comparing with those related data reported previously. Keywords: Balanocarpol, e-Viniferin, a-Viniferin, Vaticanol B, Hopeaphenol, D. lanceolata