bluuebunny/crossref_metadata_2025 huggingface dataset:
Educação e classes sociais: as “redes de políticas públicas” e o ethos mercantil na esfera pública
Authors: Silva Maria Vieira , Souza Vilma Aparecida , Richter Leonice Matilde
Published: March 2017

O artigo analisa alguns elementos constitutivos da relação entre educação e classes sociais, mediante ações dos gestores empresariais e educacionais nas parcerias estabelecidas entre o Estado, organismos sociais e o setor privado. Aborda o cenário político e pedagógico em que se realizam as  “redes de políticas” e o ethos do setor mercantil na escola pública.  Método: Para a composição da rede de políticas no Brasil, são apresentadas sínteses analíticas de uma pesquisa documental e a ferramenta de análise de redes com o NODEXL.  Resultados: As redes guardam interesses financeiros das “grantmakers" que são justificados por discursos do compromisso social, mas engendram o controle mercantil sobre instituições estatais mediante o mecanismo de accountability com desdobramentos de responsabilização para a gestão da escola pública e o trabalho docente. Conclusão: O protagonismo destes mecanismos na organização escolar colabora para disseminar concepções e promover adesões de princípios ancorados na lógica da gestão “público-privada”.
Intelectuais e universidade percepções sociológicas a partir de uma experiência pedagógica
Authors: Dias Junior Antonio Carlos
Published: March 2017

O artigo discute a temática dos intelectuais e sua relação com a sociedade a partir do locus privilegiado em que atuam: a universidade. No âmbito da disciplina de licenciatura oferecida pela Unicamp, Tópicos Especiais em Ciências Sociais Aplicadas à Educação - EL 142 (sob minha responsabilidade no primeiro semestre de 2015) e tendo em vista a inquietação inicial acima citada, foi proposto como tema para o curso a reflexão sobre a formação das universidades modernas e, conjuntamente, a atuação do intelectual em seus quadros. Problematizou-se, com efeito, a função ou o papel que os intelectuais exercem nos dias atuais e a validade do status conferido a estes sujeitos como intérpretes privilegiados da realidade. O diálogo com a bibliografia específica sugerida para a disciplina, a percepção dos estudantes em relação à temática proposta – obtida através das discussões em sala e pela avaliação do curso, bem como minha própria autoanálise reflexiva da experiência no decorrer do semestre, configuram as balizas nas quais o artigo se assenta.
Editorial
Authors: Santos Gildenir Carolino , Passos Rosemary
Published: March 2017

Neste número contamos com a colaboração de dois artigos na área de História da Educação, onde são abordados assuntos sobre a educação superior em Santa Catarina, e o ensino de história no Brasil no período da Ditadura militar. O artigo da área de Tecnologia & Comunicação faz um paralelo entre a utilização de suportes de ensino tradicionais e os suportes eletrônicos, sendo na área de Biblioteconomia & Ciência da Informação falaremos sobre a Biblioterapia, prática interessante para o desenvolvimento da leitura. Na área de Filosofia da Educação, que passa a fazer parte das áreas temáticas de nossa revista, teremos três artigos desta nova área...
Gênese da educação superior na região do Contestado (SC)
Authors: Thomé Nilson
Published: March 2017

Apresentação dos fatos históricos que foram tecidos no tempo/espaço para dar origem ao ensino universitário no Estado de Santa Catarina (Brasil), focando mais especificamente o caso da Universidade do Contestado.
Biblioterapia: uma prática para o desenvolvimento pessoal
Authors: Ferreira Danielle Thiago
Published: March 2017

Este artigo tem por objetivo relatar investigações acerca da Biblioterapia, visando a interpretação da elaboração de Programas Biblioterápicos Básicos para o desenvolvimento pessoal. Assim, delimitou-se os aspectos principais de um Programa Biblioterápico, suas abordagens metodológicas, dando ênfase no papel dos profissionais envolvidos e suas interações, dentre eles, destacando a atuação do bibliotecário.
Mapeamento dos suportes de auxílio ao ensino tradicional: uma contextualização da biblioteca, do livro, do computador, da internet e da tecnologia na educação
Authors: Santos Gildenir Carolino
Published: March 2017

O presente artigo tem como objetivo, mostrar de forma lógica através de um breve histórico, a constituição da palavra biblioteca, da transformação dos suportes de registro com a tecnologia, surgimento da Internet. Faz uma explanação sobre os livros e seus formatos desde o seu surgimento, bem como o envolvimento do computador no mundo dos livros. Define através da literatura por alguns autores, o conceito sobre biblioteca digital, eletrônica, virtual ou polimídia. Destaca alguns pontos da leitura digital realizada na Internet, além da utilização da tecnologia na educação. Volta-se a falar sobre a Internet e a sua função multimídia social. Por último, o artigo aborda os desafios do ensino a distância (EAD), a elaboração de material didático e a relação do EAD com a biblioteca digital.
Cidadania ou profissão? Um prospecto da responsabilidade social do profissional da informação
Authors: Custódio Crisllene Queiroz
Published: March 2017

A sociedade contemporânea vive um momento de explosão informacional e, ao mesmo tempo, tecnológica, onde fatores como agilidade, simultaneidade, habilidade para manusear e filtrar os excessos, e ainda virtualidade, compõem esta nova realidade. Frente a isso, ao “confrontar” o desenvolvimento social com o avanço acelerado das novas Tecnologias de Informação e Comunicação, vê-se que, perante uma sociedade estratificada, a capacidade de absorção e progressão destas é desigual, divergente e anacrônica, afetando diretamente no crescimento da produção científica quer tanto nas regiões centrais (países desenvolvidos) quanto nas periféricas (países em desenvolvimento), visto que a obtenção e o poderio da informação “coisificou-se” em mercadoria, razão pela qual tornou elemento determinante das relações de poder não somente na área científica como, consequentemente, implica numa grande influência nas áreas culturais e político-econômicas, as quais estão condicionadas à inclusão/exclusão;tradição/aculturamento;subordinação/soberania e dependência/domínio econômico.
Editorial
Authors: Santos Gildenir Carolino , Passos Rosemary
Published: March 2017

A nossa oportunidade está na manutenção desse espaço de intercâmbio de informações, e principalmente a oportunidade de chegar até você leitor e de alguma forma contribuir para a construção e acréscimo do seu conhecimento. Nos sentiremos realizados em continuar a divulgação dos artigos, comunicações, relatos de experiência dos professores, pesquisadores e alunos, em manter a qualidade da revista e na sua consolidação como veículo de divulgação científica...
Habermas e a teoria do conhecimento
Authors: Medeiros Arilene Maria Soares de , Marques Maria Auxiliadora de Resende Braga
Published: March 2017

Este estudo tem o propósito de discutir algumas questões levantadas por Habermas em: Conhecimento e Interesse, O Discurso Filosófico da Modernidade e Teoria de la Acción Comunicativa: complementos y estudios previos. A escolha por essas três obras, de cunho mais epistemológico, baseia-se na representatividade delas para a compreensão e aprofundamento de questões que tratam da teoria do conhecimento, da superação paradigmática da filosofia da consciência pela filosofia da linguagem e da concretização de seu projeto de modernidade via a possibilidade da ampliação do conceito de racionalidade. É inegável a grande contribuição de Habermas na teoria do conhecimento, na compreensão das sociedades capitalistas avançadas e na radicalização de uma razão que se faz fundamentalmente emancipatória.
Os desafios do conhecimento e o método da pesquisa científica
Authors: Orso Paulino José
Published: March 2017

Este artigo trata dos desafios do conhecimento e do método da pesquisa como meios para a superação da fragmentação do saber e, conseqüentemente, para a superação da realidade.
O mito da telinha: ou o paradoxo do fascínio da educação mediada pelo computador
Authors: Pachane Graziela Giusti
Published: March 2017

Partindo de uma discussão dos limites e possibilidades abertas pelas inovações tecnológicas na educação, o objetivo do presente trabalho é salientar que a introdução de novas tecnologias na educação (TV, vídeo e/ou computador) pode gerar resultados positivos ou negativos, dependendo do uso que o professor faz dessas tecnologias. Salienta-se, também, a necessidade de que mais discussões sobre o efeito dessas inovações sejam realizadas e de que os professores estejam preparados para agir neste novo contexto que se apresenta, possibilitando a desmi(s)tificação do computador em sala de aula.
As representações do ofício: o professor de história no discurso historiográfico brasileiro
Authors: Ribeiro Renilson Rosa
Published: March 2017

O presente ensaio analisa os principais debates historiográficos correntes sobre o papel do professor de História no Brasil nas últimas duas décadas (1980 e 1990). O estudo do ofício deste profissional da História, de maneira geral, insere-se nos debates sobre a reforma do ensino desta disciplina iniciada no final dos anos 1970 e começo dos 1980 no Brasil.
Evolução tecnológica em sistema de informação
Authors: Cruz Antonio Anastácio da
Published: March 2017

Decorrente das mudanças da sociedade industrial para a sociedade da informação e do conhecimento, tanto no cenário mundial quanto no Brasil, vive-se uma palavra de ordem que impulsiona, agride e até sufoca que é a palavra mudança. Vários autores têm escrito artigos, livros sobre essas mudanças, buscando compreensão sobre essa nova era. Há séculos, essa organização social criada pelo homem, acumula a produção do conhecimento provocando um certo saturamento em alguns de seus serviços/produtos, provocando com isso um certo acúmulo de informação, às vezes não disponível em bibliotecas, o que traz certa insatisfação e frustração no usuário porque não consegue ver suas necessidades de informação atendidas.
Coaching Action Research Excellence
Authors: Mann Mark D.
Published: March 2017

Foundational Text for Coaching Action Research with detailed methods of collecting action research data using current best practices in web based data collection. The use of the ELM programming language is described with tutorials on collecting ones own data (using firebase and/or local storage) on tactical and technical coaching techniques, strategies, and outcomes. In turn, data aggregated from these innovative data collection methods will be used in Athlete Centered Coaching Research Initiatives.
Studies regarding the quality of numerical weather forecasts of the WRF model integrated at high-resolutions for the Romanian territory
Authors: Iriza Amalia , Dumitrache Rodica C. , Lupascu Aurelia , Stefan Sabina
Published: March 2017

The aim of this paper is to evaluate the quality of high-resolution weather forecasts from the Weather Research and Forecasting (WRF) numerical weather prediction model. The lateral and boundary conditions were obtained from the numerical output of the Consortium for Small-scale Modeling (COSMO) model at 7 kmhorizontal resolution. The WRF model was run for January and July 2013 at two horizontal resolutions(3 and 1 km). The numerical forecasts of the WRF model were evaluated using different statistical scores for 2 m temperature and 10 m wind speed. Results showed a tendency of the WRF model to overestimate the values of the analyzed parameters in comparison to observations.
Secondary currents: Measurement and analysis
Authors: Priego-Hernández Gastón Alejandro , Rivera-Trejo Fabian
Published: March 2017

Fluid dynamics has the purpose of understanding the movement of liquids and gases by functions that describe the distribution of velocities. Some natural phenomena that present these functions are hurricanes, generated by pressure differences; cyclones, developed by the horizontal temperature gradient; and eddies, associated with a hydrostatic pressure gradient. In the particular case of eddies, they generate the so-called secondary velocities, which are flows formed by the presence of unequal forces between a hydrostatic pressure gradient and centrifugal forces, or by shear stresses at the joining of two flows. In addition, this phenomenon is observed in tornados, where the centrifugal force is greater in the upper layer and decreases towards the bottom, whereas the pressure gradient moves from a high to a low pressure; while in rivers it is detected particularly in bends or joins. Understanding the development of secondary currents is important for the reason that flow behavior is a function of the magnitude of these currents; hence their characterization is fundamental. The objective of this study was to obtain the secondaryvelocities developed as an effect of the union of two water currents, based on data acquired from Doppler acoustic recorders. A second objective was to draw the secondary velocities and to show the rotation flow effect, a kind of results that are difficult to obtain in any other way. The flow mechanisms are related with erosion and sedimentation processes; therefore, understanding them might help to evaluate and predict morphological changes in rivers.
Regional climate change scenarios over southern South America for future climate (2080-2099) using the MM5 Model. Mean, interannual variability and uncertainties
Authors: Cabré María Fernanda , Solman Silvino , Núñez Mario
Published: March 2017

This work focuses on evaluating the climate change projected by the end of the 21st century under the SRES A2 emission scenario over southern South America using the regional model MM5. The model projects: (i) an increase of precipitation over central Argentina, Uruguay and southern Brazil during summer and fall; (ii) a decrease in precipitation over most of the study domain during winter and spring; (iii) an important decrease in precipitation over central and southern Chile, through the year. In general, the projected temperature increase depends on the season and the examined area; particularly, it is highest over tropical and subtropical latitudes in spring and over high latitudes in summer. The MM5 model projects: (i) an increase of the interannual precipitation variability of precipitation over central Argentina and Uruguay regardless the season; (ii) a slight decrease in interannual temperature variability over large extents of Argentina for summer and winter; (iii) a slight increase in interannual temperature variability at transition seasons; with highest values over central Chile in autumn and over north central Argentina in spring. From the reliability assessment of regional climate projections, it can be concluded that signal-to-noise ratio is high for temperature and low for precipitation. Therefore, the MM5 model is a useful tool in the generation of regional climate change scenarios of high resolution over southern South America, particularly for temperature, and is a starting point to perform studies related to impacts of climate change.
Association of Education and Smoking Status on Risk of Diabetes Mellitus: A Population-Based Nationwide Cross-Sectional Study
Authors: Kim Jin-Hyeong , Nho Ju-Hwan , Choi Jae-Woo , Park Eun-Cheol
Published: March 2017

Background: Smoking, including environmental tobacco smoke (ETS) exposure is a well-known risk factor for diabetes. Low socioeconomic status, especially lack of education, also is a risk factor for diabetes. Therefore, we assessed the association of education and smoking status, including ETS exposure, with the prevalence of diabetes. Methods: Data were from the 2007–2013 Korea National Health and Nutritional Evaluation Survey (KNHANES). Multivariable logistic regression examined associations between various lifestyle and health factors and prevalence of diabetes while controlling for potential confounding variables. Subgroup analysis was performed according to smoking status to determine factors associated with diabetes. Results: Of 19,303 individuals analyzed, 1,325 (11.4%) had diabetes. Greater average age, male sex, lower educational level, unemployment, and coexisting health problems were significantly associated with diabetes. Individuals with only elementary, middle, or high school level education had significantly greater odds ratios (p<0.05) compared to college graduates; smokers and nonsmokers exposed to ETS had significantly greater OR (p<0.05) than nonsmokers unexposed to ETS. Subgroup analysis of diabetics according to smoking status revealed significant associations (p<0.05) for diabetic nonsmokers exposed to ETS with female sex, single status, elementary level education, urban residence, National Health Insurance (NHI), hypertension, no alcohol intake, and no moderate physical activity. For diabetic smokers, there were significant associations (p<0.05) with elementary education, urban residence, lack of moderate physical activity, no alcohol intake, and NHI. Conclusions: The results suggested that smoking status, including ETS exposure, was associated with a higher prevalence of diabetes especially in populations with less education. Thus, we should direct efforts for controlling diabetes toward individuals with lower levels of education, and those who are smokers and nonsmokers exposed to ETS.
The Assessment of Sustainability Indicators in the Villagers’ Lives in Iran with Emphasis on Natural Hazards: A Case Study
Authors: Murgante Beniamino , Salmani Mohamad , Molaei Qelichi Mohamad , Hajiloo Mehdi
Published: March 2017

Natural hazards such as earthquakes take place around the world and when combined with human create natural disasters. Earthquake, as one of natural hazards, in recent years has caused the damage and the destruction of many rural areas with major losses in rural areas for the lack of sustainability in political, economic, social, physical and operational criteria. Thus, to overcome the damage caused by earthquakes in rural areas, the assessment of sustainability status seems necessary to plan and strengthen according to desirability of the status of sustainability indicators. This is a descriptive-analytical study; and data collection was conducted through field methods and questionnaires. To test the hypothesis, T statistical methods, correlation method and F-test were performed using SPSS software. The results of the study showed that villages were at a low and undesirable level under all aspects, except social index in terms of sustainability. Comparisons showed that there was a significant mean difference among villages in terms of sustainability. Also, the research concerns ranking of villages in terms of sustainability against earthquake hazard using multi-criteria decision methods. Finally, in order to improve sustainability indicators at the level of villages, some strategies were presented.
Molecularly Imprinted Polymers for Selective Extraction of Oblongifolin C from Garcinia yunnanensis Hu
Authors: Liping Wang , Wenwei Fu , Yunhui Shen , Hongsheng Tan , Hongxi Xu
Published: March 2017

Molecularly imprinted polymers (MIPs) were synthesized and applied for the selective extraction of oblongifolin C (OC) from fruit extracts of Garcinia yunnanensis Hu. A series of experiments and computational approaches were employed to improve the efficiency of screening for optimal MIP systems in the study. The molar ratio (1:4) was chosen at last based on the comparison of the binding energy of the complexes between the template (OC) and functional monomers using density functional theory (DFT) at the RI-PBE-D3-gCP/def2-TZVP level of theory. The binding characterization and the molecular recognition mechanism of MIPs were further explained using the molecular modeling method and NMR and IR spectra data. The reusability of this approach was demonstrated in over 20 batch rebinding experiments. 140.5 mg of OC (>95% purity) was obtained from the 5 g extracts with 2 g of MIPs with the best binding properties through gradient elution program from 35% to 70% methanol-water solution. At the same time, another structural analog, 46.5 mg of guttiferone K (GK) (>88% purity), was also obtained by the gradient elution procedure. Our results showed that the structural analogs could be separated from the crude extracts by the molecularly imprinted solid-phase extraction (MISPE) using a gradient elution procedure for the first time.
Guided Self-Accelerating Airy Beams—A Mini-Review
Authors: Zhang Yiqi , Zhong Hua , Belic Milivoj R. , Zhang Yanpeng
Published: March 2017

Owing to the nondiffracting, self-accelerating, and self-healing properties, Airy beams of different nature have become a subject of immense interest in the past decade. Their interesting properties have opened doors to many diverse applications. Consequently, the questions of how to properly design spatial manipulation of Airy beams or how to implement them in different setups have become important and timely in the development of various optical devices. Here, based on our previous work, we present a short review on the spatial control of Airy beams, including the interactions of Airy beams in nonlinear media, beam propagation in harmonic potential, and the dynamics of abruptly autofocusing Airy beams in the presence of a dynamic linear potential. We demonstrate that under the guidance of nonlinearity and external potential, the trajectory, acceleration, structure, and even the basic properties of Airy beams can be adjusted to suit specific needs. We describe other fascinating phenomena observed with Airy beams, such as self-Fourier transformation, periodic inversion of Airy beams, and the appearance of spatial solitons in the presence of nonlinearity. These results have promoted the development of Airy beams, and have been utilized in various applications, including particle manipulation, self-trapping, and electronic matter waves.
Effects of Formation-Water Salinity, Formation Pressure, Gas Composition, and Gas-Flow Rate on Carbon Dioxide Sequestration in Coal Formations
Authors: Ibrahim Ahmed Farid , Nasr-El-Din Hisham A.
Published: March 2017

Carbon dioxide (CO2) sequestration in coal seams combines CO2 storage with enhancing methane (CH4) recovery. The efficiency of CO2 sequestration depends on the coal-formation properties and the operating conditions. This study investigated the effects of the sodium chloride (NaCl) salinity of coal-seam water, injection flow rate, injected-gas composition, and CO2 state (formation pressure) on CO2 sequestration in coal formations. Coreflood tests were conducted on nine coal cores to simulate the injection of CO2 into coal formations. The change in the effective water/coal permeability after CO2 injection was measured. A commercial simulator was used to match the pressure drop across the core from the experimental study by adjusting the relative permeability curves. Moreover, permeability dynamic measurements were conducted to estimate the absolute permeability reduction caused by coal swelling.

The effective water permeability in the tested coal decreased during CO2 injection because of its adsorption onto the coal surface, coupled with a reduction in the relative water permeability. As salt concentration increased, the change in the pressure drop across the core increased, but this effect decreased as the formation pressure increased. Higher formation pressure and lower nitrogen (N2) concentrations led to further permeability reduction as a result of the higher CO2 adsorption onto the coal surface. Furthermore, as the injection flow rate increased, the contact time of CO2 at the coal surface decreased. Hence, the CO2 adsorption to the coal matrix decreased, and thus the difference in the effective water permeability slightly decreased. CO2 injectivity in fully water-saturated formations increased initially as the gas relative permeability increased, then the injectivity decreased as a result of matrix swelling and absolute permeability reduction. Moreover, the water salinity in coal formations decreased the overall gas relative permeability and increased the water relative permeability. Similar behavior occurred in the presence of N2. It is derived from these observations that the injection of CO2 into highly volatile bituminous coal seams for CO2 sequestration purpose is more efficient as the salt concentration increases, especially at high injection pressures.
Vivencia y objetivación. El lenguaje del dolor en Wittgenstein
Authors: Sanguineti Juan José
Published: March 2017

En este trabajo presentaré algunas consideraciones sobre la percepción de las sensaciones y su expresión lingüística atendiendo a las observaciones de Wittgenstein sobre el tema. Voy a referirme concretamente a la sensación de dolor, mencionada con frecuencia por este autor y, en general, por los filósofos de la mente, como ejemplo típico para profundizar en el tema de los conocimientos en primera y tercera persona.
Effect of total organic carbon and aquatic humic substances on the occurrence of lead at the tap
Authors: Winning Lisa D. , Gorczyca Beata , Brezinski Kenneth
Published: March 2017

Homes with lead service lines (LSLs) in the City of Brandon, Manitoba, Canada, were found to exceed the provincial standard of 10 μg/L for lead in drinking water. Solids identified by X-ray diffraction of LSL scale were Pb5O8 and PbO2, indicating that lead(II) solids in the LSL scale have been oxidized to lead(IV) solids by free chlorine residuals. Natural organic matter (NOM) can reduce PbO2 within a few hours, and Brandon treated water has high levels of NOM at approximately 5–7.6 mg/L as total organic carbon (TOC). As water stagnates in the LSL during periods of no water use the free chlorine residual is depleted, permitting PbO2 to oxidize NOM and be reduced to more soluble lead(II) species, resulting in an increase in dissolved lead concentrations. Although it is generally believed that aquatic humic substances (AHS) are primarily responsible for the reductant capacity of NOM, removal of AHS from the treated water resulted in a 6% decrease in lead release from PbO2, while removal of 50% of total NOM resulted in a 75% decrease in lead release. AHS and TOC were not found to play a significant role in the reduction of PbO2 in this water.
Spectrophotometric monitoring of nitrite in seawater after liquid microextraction of its derivative with 2,3-diaminonaphthalene
Authors: Zahedi Mir Mahdi , Amiri Amir Hosein , Nasiri Mahmoud
Published: March 2017

A simple dispersive liquid–liquid microextraction based on solidification of floating organic droplets coupled with spectrophotometric detection was developed for the determination of nitrite in Chabahar Bay seawater. In the preparation procedure, 2,3-diaminonaphthalene as derivatization reagent reacts with nitrite in acidic medium to form a photometric center of 1-[H]-naphthotriazole (NAT). Product material (NAT) was extracted by dispersive liquid–liquid microextraction with 1-dodecanol as extraction solvent and after centrifugation, the floated droplet was solidified in an ice bath and was easily removed for analysis at λmax = 358 nm. Several important factors affecting the microextraction efficiency were optimized in artificial seawater as a best simulation media. Under the optimum conditions, the absorbance of NAT was linear with nitrite concentrations ranging from 0.1 to 11 μg/mL in seawater. Figures of merit of method such as enrichment factor (52), limit of detection (0.094 μg/mL), and repeatability (N = 6, %RSD = % 5) were evaluated as appropriate. Determination of nitrite in Chabahar coastal zone showed that nitrite concentration varied in the range of 0.77–1.76 μg/mL with an increase of concentration from South to the North of Bay.
Response surface modeling of bioremediation of acid black 52 dye using Aspergillus flavus
Authors: Ghosh Arpita , Dastidar Manisha Ghosh , Sreekrishnan T. R.
Published: March 2017

Bioremediation is an efficient process to remove metals and dyes from solutions using different micro-organisms. In the present study, the efficiency of growing Aspergillus flavus (isolated from the effluent of an electroplating industry) to treat a synthetic solution of acid black 52 dye (a trivalent chromium complex dye) was investigated. Maximum removal of dye and chromium was observed to be 390 and 17.22 mg/L, respectively, at an initial dye concentration of 750 mg/L and at pH 4.5 in 50 hours in a batch bioreactor. The biomass concentration was reduced from 4.1 to 0.4 g/L with increasing dye concentration from 100 to 2,000 mg/L. The response surface modeling for color removal was performed using the range of initial dye concentration 200–400 mg/L, pH 4–6 and time 35–50 hours. The optimum conditions for maximum color removal (76.52%) were observed at initial dye concentration: 200 mg/L, pH: 4.75 and time: 50 hours. The deviation (−0.02%) showed a close agreement between the experimental and predicted values of color removal. The scanning electron microscopic and energy dispersive X-ray analyses indicated bioremediation of the dye.
Child and Adolescent Behavior Inventory (CABI): Standardization for Age 6-17 Years and First Clinical Application
Authors: Cianchetti Carlo , Pasculli Marcello , Pittau Andrea , Campus Maria Grazia , Carta Valeria , Littarru Roberta , Fancello Giuseppina Sannio , Zuddas Alessandro , Ledda Maria Giuseppina
Published: March 2017

Background:

The Child and Adolescent Behavior Inventory (CABI) is a questionnaire designed to collect information from the parents of children and adolescents, both for the preparation of screening and epidemiological studies and for clinical evaluation. It has been published in CPEMH in 2013, with the first data on 8-10 years old school children.

Here we report an extended standardization on a school population 6-17 years old and the first results of the application in a clinical sample.

Methods:

Parents, after giving their informed consent, answered to the questionnaire. Complete and reliable data were obtained from the parents of 659 school children and adolescents 6-17 y.o., with a balanced distribution of gender.

Moreover, in a population of 84 patients, the results with the CABI were compared with the clinical evaluation and the CBCL.

Results:

In the school population, scores were different in relation to gender and age. The values of externalizing disorders were higher in males, with the highest values for ADHD in the 6-10 y.o. children. On the contrary, the scores of internalizing disorders and of eating disorders tended to be slightly higher in females.

In the clinical population, scores at the CABI were in agreement with the clinical evaluation in 84% cases for depressive symptoms (compared to CBCL 66%), 53% for anxiety symptoms (CBCL 42%) and 87% for ODD (CBCL 69%), differences, however; without statistical significance (chi square).

Conclusion:

The study obtained normative data for the CABI and gave information of the behavioral differences in relation to age and gender of the school population as evaluated by parents/caregivers. Clinically, the CABI provided useful information for the clinical evaluation of the patient, sometimes with better agreement with the final diagnosis compared to the CBCL.
Assessment of the Amount of Calcium Ions Released after the use of Different Chelating Agents and Agitation Protocols
Authors: Pedro Fábio Luis Miranda , Costa Laura Maria Amorim Santana , Filho Gilberto Siebert , Guedes Orlando Aguirre , Pereira Thiago Machado , Borges Alvaro Henrique
Published: March 2017

Background:

The main goal of endodontic treatment is to achieve cleaning and shaping prior to the filling process.

Objective:

This study aimed to evaluate, using atomic absorption spectrometry, the release of Calcium ions after the use of different chelating agents and protocols of agitation.

Method:

Ninety human canine teeth were randomly assigned to one of nine groups (n=10), as follows: 1) 0.2% Chitosan and manual agitation; 2) 0.2% Chitosan and sonic agitation; 3) 0.2% Chitosan and ultrasonic agitation; 4) 17% EDTA and manual agitation; 5) 17% EDTA and sonic agitation; 6) 17% EDTA and ultrasonic agitation; 7) distilled water and manual agitation; 8) distilled water and sonic agitation; 9) distilled water and ultrasonic agitation. Following instrumentation, all chelating substances remained inside the root canal for 3 min. Then the fluid was collected for the identification and quantification of Calcium ions. The amount of Calcium ions released in each group was compared using analysis of variance (ANOVA) and the Kolmogorov-Smirnov and Levene tests followed by Tukey’s post-hoc test. Significance was set at 5%.

Results:

The groups in which 0.2% Chitosan was used showed the highest concentration of Calcium ions (p<0.05). Concerning the agitation method, ultrasonic agitation showed the greatest values, followed by sonic and manual agitation (all comparisons, p<0.05).

Conclusion:

The present findings suggest that, among the combinations here tested, Chitosan associated with ultrasonic agitation yielded the greatest release of Calcium ions.
Allograft Reconstruction for Sarcomas of the Tibia
Authors: Ng Vincent Y. , Louie Philip , Punt Stephanie , Conrad Ernest U.
Published: March 2017

Background:

Allograft reconstruction of oncologic resections involving the tibia can have unpredictable results. Prior studies have reported a high rate of complications and a long recovery period involving prolonged bracing, repeated procedures and extended periods of antibiotics.

Methods:

The case details of 30 tibial allografts (12 adults, 18 children; 20 intercalary, 7 hemicortical, 3 other) were reviewed retrospectively. Based on factors including function, pain, healing and infection, clinical outcomes were stratified into three categories: excellent, moderate, and poor.

Results:

The overall survival rate of the allografts was 66% at a mean follow-up of 42 mos (adults) and 63 mos (children). Healing for metaphyseal junctions was successful in 73% at a mean of 44 weeks and for diaphyseal junctions, 64% at 41 weeks. Intercalary allografts in adults (4 of 20) all became infected and none had excellent results. All hemicortical allografts were performed in adults and 6 of 7 had excellent results. Distal intercalary allografts in children (6 of 20) had either excellent or moderate results with no infections, but had 3 nonunions and 2 fractures. Proximal intercalary allografts in children (8 of 20) had 2 excellent results, but had 6 infections requiring a cement spacer. Five of the six spacers were ultimately revised to another allograft or an arthroplasty.

Conclusion:

For tibial allograft reconstruction, surgeons and patients should prepare for a prolonged treatment course that may include multiple complications and surgeries. Excellent or moderate results can be achieved eventually in most, but amputation may be necessary in 15-20% of cases.
Reading Thomas Jefferson with TopicViz: Towards a Thematic Method for Exploring Large Cultural Archives
Authors: Klein Lauren , Eisenstein Jacob
Published: March 2017

In spite of what Ed Folsom has called the “epic transformation of archives,” referring to the shift from print to digital archival form, methods for exploring these digitized collections remain underdeveloped. One method prompted by digitization is the application of automated text mining techniques such as topic modeling -- a computational method for identifying the themes that recur across an archive of documents. We review the nascent literature on topic modeling of literary archives, and present a case study, applying a topic model to the Papers of Thomas Jefferson. The lessons from this work suggest that the way forward is to provide scholars with more holistic support for visualization and exploration of topic model output, while integrating topic models with more traditional workflows oriented around assembling and refining sets of relevant documents. We describe our ongoing effort to develop a novel software system that implements these ideas.
Opening the Early Modern ToolBox:  The Digital Interleaf and Digital Commonplace Book
Authors: Schofield Scott , Weber Jennette
Published: March 2017

This paper considers how early modern note-taking practices can inform the design of digital reading environments.  In particular, it argues that proximate, handwritten note-taking is essential for both memory retention and archiving, and that digital readers should work within structures that allow for such practices.  The Digital Interleaf, the first of two conceptual prototypes introduced, offers one response to that need: a multi-layered page designed for individual and social annotation.  The Digital Commonplace Book, the second of the prototypes discussed, provides a method for indexing notes from the Digital Interleaf.  These two interoperable concepts are the first in a suite called the Early Modern Toolbox.
Estudantes negras universitárias e a herança cultural escolar
Authors: Dentz Schirlei Russi Von , Valle Ione Ribeiro
Published: March 2017

Este trabalho aborda três experiências vividas por estudantes negras cotistas da Universidade Federal de Santa Catarina (UFSC), as quais foram relatadas por meio de entrevistas. O referencial teórico aporta-se nos conceitos desenvolvidos pelo sociólogo Pierre Bourdieu, principalmente quanto aos diferentes tipos de capitais abordados pelo autor – econômico, cultural, social, simbólico, linguístico, escolar, etc. –, para a análise das trajetórias de vida escolar e universitária das entrevistadas. Destaca-se, das trajetórias de vida das estudantes, especialmente, suas heranças cultural, escolar e familiar e como elas mobilizaram essas heranças em seu favor. No campo universitário, todavia, o racismo, a discriminação de gênero e as “diferenças” se interseccionam (Kimberlé Crenshaw) para a reprodução social (Pierre Bourdieu). A isso, opõem-se as ações afirmativas, que vêm tentando romper com a lógica da reprodução social, criando as condições para novas relações no campo universitário e enriquecendo as práticas sociais nesses ambientes pela inclusão das diferenças sociais, culturais e étnicas.
PERANCANGAN MODEL AIR ALIRAN SILANG (CROSS FLOW TURBINE) DENGAN HEAD 2 m DAN DEBIT 0,03 m3/s
Authors: Ridwan Ridwan
Published: March 2017

Pembangkit listrik tenaga mikrohidro merupakan pembangkit listrik skala kecil yang menggunakan air sebagai penggeraknya dan penggerak mula adalah turbin. Sistem pembangkit ini sangat tepat digunakan di pedesaan karena sistem ini mudah dibuat, menghasilkan daya listrik yang cukup besar dan biaya pembuatan yang lebih relatif murah. Atas dasar diatas maka perlu dirancang suatu turbin yang mendukung sistem pembangkit ini, diantaranya adalah Turbin Aliran Silang. Untuk merancang sebuah turbin air agar tidak terjadi kesalahan dalam perancangan (seperti hal-nya biaya pembuatannya) maka dilakukan perancangan prototipenya. Sebuah prototipe Turbin Aliran Silang dirancang dalam kegiatan tugas akhir ini dengan debit (Q) = 0,03  m3/s, head (H) = 2 m dengan efisiensi 0,80. Spesifikasi teknik utama dari hasil perancangan turbin adalah diameter runner (D) = 0,195 m dengan putaran turbin 281,39 rpm daya keluaran efektif sebesar 470,4 W.
ANALISA COVER SUB ASSY BATTERY UNTUK KENDARAAN BERMOTOR RODA EMPAT
Authors: Satrio Putra Rizky
Published: March 2017

Baterai atau aki, atau bisa juga accu adalah sebuah sel listrik dimana di dalamnya berlangsung proses elektrokimia yang reversibel (dapat berbalikan) dengan efisiensinya yang tinggi. Yang dimaksud dengan proses elektrokimia reversibel, adalah di dalam baterai dapat berlangsung proses pengubahan kimia menjadi tenaga listrik (proses pengosongan), dan sebaliknya dari tenaga listrik menjadi tenaga kimia, pengisian kembali dengan cara regenerasi dari elektroda-elektroda yang dipakai, yaitu dengan melewatkan arus listrik dalam arah (polaritas) yang berlawanan di dalam sel. Atau aki pada mobil berfungsi untuk menyimpan energi listrik dalam bentuk energi kimia, yang akan digunakan untuk mensuplai (menyediakan) listik ke sistem starter, sistem pengapian, lampu-lampu dan komponen komponen kelistrikan lainnya. Didalam bateri mobil terdapat elektrolit asam sulfat, elektroda positif dan negatif dalam bentuk plat. Plat-plat tersebut dibuat dari timah atau berasal dari timah. Karena itu baterai tipe ini sering disebut baterai timah, Ruangan didalamnya dibagi menjadi beberapa sel (biasanya 6 sel, untuk baterai mobil) dan didalam masing masing sel terdapat beberapa elemen yang terendam didalam elektrolit.
MODIFIKASI MESIN GREASE FILLING MENJADI BERBASIS PLC FX2N-48MR DI PT. X
Authors: Komarudin Dindin
Published: March 2017

Mesin grease filling adalah mesin yang digunakan untuk memberikan lapisan grease pada oil seal. Pemberian lapisan grease merupakan proses tambahan sesuai dengan permintaan pelanggan. Hampir seluruh mesin grease filling existing di PT. X, menggunakan kontrol konvensional (menggunakan relay). Sedangkan untuk saat ini hampir seluruh mesin yang dibuat untuk PT. X menggunakan PLC. Sehingga pada permintaan mesin selanjutnya dibuat dengan kontrol PLC. Namun dalam pembuatannya tidak ada perubahan langkah kerja mesin. Tujuan utama dari perancangan adalah merancang kontrol mesin grease filling menjadi berbasis PLC FX2N-48MR. Dan mengetahui unjuk kerja hasil rancangan atau modifikasi. Fungsi kontrol mesin ini secara umum adalah untuk membuka dan menutup metering valve. Metering valve berfungsi ketika mendapat tekanan udara dari solenoid valve. Membuka dan menutupnya katup udara bertekanan pada solenoid valve di kontrol langsung oleh PLC. Berdasarkan fungsi tersebut dibuatlah program berupa diagram ladder dengan software programing GX-Developer. Kemudian software tersebut di download ke PLC FX2N-48MR yang sebelumnya telah di rangkai dengan komponen mesin lainnya. Setelah itu, fungsi dari setiap komponen dan program diuji untuk memastikan fungsi dari masing-masing komponen. Pada modifikasi kontrol mesin Grease Filling menjadi berbasis PLC FX2N-48MR, diketahui telah mengurangi komponen timer sebanyak 3 buah dan limit switch 1 buah. Komponen yang tidak digunakan digantikan oleh program pada PLC FX2N-48MR. Penggunaan kontrol mesin dengan PLC FX2N-48MR juga meingkatkan unjuk kerja mesin dibanding versi kontrol mesin konvensional. Pada mode bleeding nilai unjuk kerja menjadi 2,04 detik, disbanding versi konvensional 2,23 detik. Dan pada mode normal cycle – manual nilai unjuk kerja menjadi 2,18 detik, dibanding mode konvensional 2,24 detik. Dan pada mode normal cycle – otomatis nilai unjuk kerja menjadi 2,02 detik, dibanding mode konvensional 2,22 detik. Penggunaan PLC FX2N-48MR juga berpengaruh pada produktifitas mesin. Pada mode normal cycle – manual secara ideal dapat meningkatkan 1769,33 Pcs dan pada mode normal cycle – otomatis secara ideal dapat meningkatkan 6422,26 Pcs. Kemudian penggunaan kontrol mesin berbasis PLC FX2N-48MR telah mempermudah pengecekan pada saat terjadi kerusakan mesin
PERANCANGAN TORQUE LIMITER CLUTCH PADA MESIN BODYMAKER AUTOMATIC WELDING
Authors: Dwiyanto Daniel
Published: March 2017

Mesin bodymaker Automatic welding adalah mesin welding otomatis untuk pembuatan kaleng kemasan. Pada mesin mesin tertentu masih menggunakan system arus dalam memproteksi mesin terhadap overload yang terjadi. Namun pada praktek dilapangan system ini kurang maksimal dalam kinerjanya, jika mesin terjadi overload mesin tidak berhenti.Oleh karenanya perlu ditambahkan elemen mesin yang lain yang bisa secara otomatis menghentikan mesin saat overload terjadi. Berdasarkan hal tersebut diatas pada kesempatan ini saya ingin merancang torque limiter clutch. Dengan mengumpulkan data tentang spesifikasi motor penggerak utama maka akan dapat dirancang dan dihitung berapa dimensional komponen komponen, gaya maupun torsi yang bekerja, serta desain poros pada torque limiter clutch. Dengan perhitungan teoritis yang benar akan mendapatkan desain torque limiter clutch yang optimal, efisien sesuai dengan kapasitas mesin dikerjakan, kemudian proses perancangan dilanjutkan dalam bentuk gambar tehnik secara detail dan terperinci menggunakan software autocad 2007. Dari seluruh perhitungan perancangan diperoleh hasil bahwa mesin akan berhenti setelah overload terjadi pada 0,626 x 103 N.mm. Dalam proses kerjanya spring memegang peranan paling penting karena harus dapat  menahan ball agar tidak keluar dari lubang flange pada putaran normal dan membiarkan ball keluar dari lubang flange saat overload terjadi.
ANALISIS PENGARUH PERLAKUAN PANAS TERHADAP KEKERASAN DAN STUKTUR MIKRO MATERIAL S45C DAN SS400 YANG DIGUNAKAN SEBAGAI ALAT POTONG KULIT SEPATU
Authors: Wardoyo Hadi
Published: March 2017

Untuk mengetahui pengaruh yang terjadi pada material S45C dan SS400 setelah mengalami perlakuan panas dan bekerja pada temperatur tertentu sebagai alat potong kulit sepatu dalam waktu tertentu sehingga mendapatkan perbandingan hasil pengujian dari masing-masing material. Menggunakan metode Brinell dan metode Vickers serta metode metalography untuk mengetahui setruktur mikro yang terjadi akibat porses perlakuan panas yang dialami oleh material tersebut. Hasil pengujian kekerasan menunjukkan adanya perubahan kekerasan yang meningkat akibat perlakuan panas. Dari data yang didapat dari hasil pengujian dapat disimpulkan bahwa nilai kekerasan suatu material tidak terlalu bepengaruh terhadap hasil pemotongan kulit sepatu, sehingga untuk pemotongan kulit sepatu tidak harus menggunakan material yang memiliki tingkat kekerasan tinggi melainkan bisa juga dengan menggunakan material dengan tingkat kekerasan sedang atau lebih rendah.
PENGARUH INJECTION TIME DAN BACKPRESSURE TERHADAP CACAT PENYUSUTAN PADA PRODUK KEMASAN TOPLES DENGAN INJECTION MOLDING MENGGUNAKAN MATERIAL POLISTYRENE
Authors: Wahyudi U.
Published: March 2017

Produk kemasan kue atau toples adalah produk rumah tangga yang sangat dibutuhkan untuk menaruh berbagai macam-macam kue kering, Produk plastik ini terdiri dari badan dan tutup, kedua komponen ini pada saat dirakit memerlukan kepresisian yang lumayan bagus oleh karena material yang digunakan plastik, maka faktor penentuan penyusutan(shrinkage) memegang peranan sangat penting pada saat dicetak dengan mesin injection molding yang menggunakan material polistyrene. Pada saat produksi pernah terjadi kegagalan produk fitting terlalu kencang dan ada juga fitting yang kendor antara tutup dengan badan akibatnya produk tidak lolos produksi oleh quality control. Didalam tugas akhir ini penulis melakukan langkah-langkah bagaimana teknik menganalisa cacat penyusutan (shrinkage) material plastik terutama di khususkan material polystyrene dimulai dari proses injection molding lalu diambil sampel produk dengan tingkat pengujian yang berbeda lewat settingan parameter. Dengan waktu injeksi dan backpressure yang berbeda-beda akan menghasilkan ukuran produk dan nilai shrinkage yang berbeda pula. Nilai temperatur leleh yang baik digunakan untuk material polistyrene dengan ketebalan produk kemasan toples 0,75 mm, diameter produk 140,94 mm dan tinggi 58,29 mm. berkisar antara 2400C – 3100C. Cacat penyusutan pada material polystyrene pasti ada walaupun tidak sebesar pada material lain seperti PP dan LDPE dan bisa diminimalkan dengan setting parameter proses yang bagus. Nilai shrinkage yang baik dan ideal dan sesuai standar terjadi pada settingan backpressure 30 kgf/cm² dengan waktu injeksi yaitu 2 detik. Dengan  parameter yang konstan, mulai dari injection speed 120 cm/s, 65 cm/s. Injection pressure 1400 kgf/cm² dan pack pressure 1200 kgf/cm², pack time 0,5 sec, Shot size 55 mm, kemudian cooling time 2 detik dengan temperatur mold 600 C.