bluuebunny/crossref_metadata_2025 huggingface dataset:
Perfil dos Bolsistas de Produtividade em Pesquisa do CNPq em Educação
Authors: Leite Anderson Cleiton Fernandes , Rocha Neto Ivan
Published: March 2018

Este estudo teve por objetivo analisar o perfil dos bolsistas de Produtividade em Pesquisa do CNPq na área de Educação. Das 401 bolsas vigentes no ano de 2016, foram consideradas as seguintes variáveis: categoria/nível da bolsa; sexo e IES do bolsista; UF e região na qual se localiza a IES, assim como a subárea e especialidade do projeto. Após uma descrição estatística e comparativa, conclui-se que os bolsistas PQ em Educação apresentam 63,34% integrantes do sexo feminino; que 87% deles são ligados a IES das regiões sudeste (58%) e sul (29%). Verificou-se que das 7 subáreas da Educação, apenas 3 delas acumulam 82,3% dos projetos em vigência.
Invención de problemas contextualizados de probabilidad: una competencia por desarrollar en profesores de Matemáticas
Authors: Salazar Solórzano Lorena
Published: March 2018

Los actuales programas de estudio de matemáticas en Costa Rica incluyen, por primera vez, el tema de probabilidad en todos los niveles, razón por la cual los profesores deben ser competentes, no solo en esa área del saber, sino también en la creación de problemas que sean contextualizados y suficientemente motivadores para introducir este tema. Con el interés de responder a esta demanda nacional se da este estudio, para desarrollar la competencia de invención de problemas de probabilidad en futuros profesores de matemática. La muestra seleccionada fue de 10 profesores en formación de la Universidad Nacional de Costa Rica, a los que se les proporcionó material didáctico concreto, así como datos del Compendio de Estadísticas del Informe del Estado de la Nación (2016), para crear sus problemas. Para ello se siguieron cuatro etapas estratégicas: análisis de enunciados de problemas clásicos de probabilidad, variación y adaptación de problemas, invención de problemas propios, evaluación y mejora de estos. Los resultados muestrancómo, con la implementación de estas cuatro fases junto con el apoyo de material económico y datos nacionales de libre acceso, se logra, de una manera expedita, problemas potentes y contextualizados, que empoderan al futuro docente en la competencia de invención de problemas, lo que da lugar, tanto a problemas lúdicos interesantes (juegos), como a aquellos relacionados con problemáticas nacionales que conciencian a los jóvenes costarricenses.
Los puentes en Angostura, Turrialba
Authors: Hilje Luko
Published: March 2018

En Costa Rica, uno de los anhelos de varios gobernantes y en particular de Braulio Carrillo, fue construir un buen camino entre el Valle Central y la costa del Caribe, para favorecer tanto la exportación como la importación de bienes y mercaderías. El camino a Matina, que databa de la época colonial, era inadecuado y, además, obligaba a cruzar el río Reventazón en un paraje inseguro, en las cercanías del actual Siquirres. Por tanto, en el gobierno de Juan Rafael Mora se decidió desechar esa ruta y buscar un mejor sitio para atravesar el río, y fue cuando se localizó Angostura, en Turrialba. En este artículo se documenta de manera detallada, con base en expedientes disponibles en el Archivo Nacional y periódicos existentes en la Biblioteca Nacional, cómo fue que ese punto fue descubierto, así como las iniciativas y las personas que hicieron posible la construcción de los cuatro puentes erigidos ahí a lo largo de 110 años: uno de troncos y calicanto, uno de madera y techado, uno de hierro y el actual puente de acero, levantados durante los gobiernos de Mora (1852), Jesús Jiménez Zamora (1865), Julio Acosta García (1923) y Mario Echandi Jiménez (1962).
Propuesta de un sistema de clasificación visual de la madera por defectos admisibles para tres grados estructurales en Costa Rica
Authors: Rivera-Tenorio Monzerrath , Moya-Roque Roger
Published: March 2018

Se analizó el sistema de clasificación visual de la madera por defectos admisibles  estructurales en Costa Rica. Se propuso incluir en la norma INTECO 06-07-03:2011 de Costa Rica un cuadro de evaluación visual de la madera aserrada por tres grados estructurales, según defectos admisibles. Se muestra su aplicabilidad en madera aserrada de Cupressuss lusitanica y Alnus acuminata y se compara la clasificación con los valores reales de módulo de elasticidad en flexión para los diferentes grados estructurales 1, 2 y 3. Se encontró que con la adición de los nuevos parámetros en la norma se puede tener una clasificación estructural próxima a los valores reales de módulo de elasticidad de la pieza de madera.
Detección de faltas en motores eléctricos con base en índices de potencias y redes neuronales
Authors: Murillo-Soto Luis Diego , Calderón-Arce Cindy , Figueroa-Mata Geovanni
Published: March 2018

Se presenta un método alternativo para determinar condiciones de operación anómalas en un motor trifásico de inducción, basado en un conjunto de índices adimensionales, calculados a partir de sus pérdidas de potencia. Estos índices son sensibles a variaciones en las condiciones en que opera el motor y por lo tanto se valorará si, en conjunto, son capaces de discriminar entre un desbalance de voltaje, un subvoltaje o una variación térmica, entre otros. En este trabajo se desarrollan las ecuaciones necesarias para calcular las perdidas eléctricas que permiten el cálculo de los índices propuestos. Es importante destacar que estos índices unifican la interpretación de variables eléctricas, mecánicas y térmicas con la intensión de su utilización en el diseño de un sistema automático de detección de faltas que opere en tiempo real, por medio de un prototipo basado en redes neuronales. Adicionalmente, se describen los experimentos realizados a un motor trifásico de inducción de dos caballos de fuerza, 230 Voltios - 60 Hertz, el banco de pruebas construido y en la parte final del trabajo se representa de forma gráfica la variabilidad de los índices ante distintas condiciones anormales, lo que permite valorar su sensibilidad y relación con las faltas asociadas.
Aplicación de métodos agregados en la detección de puntos atípicos en series de tiempo meteorológicas
Authors: Calvo-Valverde Luis Alexander , Acuña-Alpízar Nelson José
Published: March 2018

Para este trabajo de investigación, se estudió el desempeño de los métodos agregados en la detección de valores atípicos punto en series temporales uni-variables meteorológicas, utilizando la métrica F1 como medida de desempeño. Para esto se creó un programaque permite aplicar 3 clasificadores no agregados (regresión de soporte vectorial, ARIMA, redes bayesianas) y 3 clasificadores agregados (apilamiento, bagging y AdaBoost) a 3 conjuntos de datos de mediciones meteorológicas (precipitación, temperatura máxima y radiación solar).

Usando esta aplicación, se ejecutó un diseño experimental para comparar los clasificadores. En este diseño, primero se obtuvo el promedio de F1 de los clasificadores realizando múltiples pruebas en cada conjunto de datos.  Luego, mediante una prueba estadística de hipótesis se compararon los promedios obtenidos por los clasificadores para determinar si las diferencias observadas eran significativas. Finalmente, se realizó un análisis de los resultados, enfocado en comparar el desempeño de los clasificadores agregados contra el desempeño del mejor clasificador no agregado en cada conjunto de datos.

En general se encontró que es posible mejorar significativamente el desempeño al detectar valores atípicos punto en algunas series temporales uni-variables utilizando métodos agregados. Sin embargo, para lograr esta mejora se deben reunir condiciones que, aunque varían dependiendo del método agregado, en general apuntan a mejorar la diversidad de los clasificadores base. Cuando no se reúnen estas condiciones, los métodos agregados no tuvieron una diferencia significativa en el desempeño con respecto al algoritmo no agregado que obtuvo el mejor desempeño en el conjunto de datos.
EXPLORING ALTERNATIVES FOR VISUAL WORD GRAMMATICAL PRIMING PROCEDURE: AN ERP STUDY
Authors: Ković Vanja , Sovilj † Platon , Lalović Dejan
Published: March 2018

In search of the optimal method for assessing grammatical context effects on the visual word processing, we designed a study to demonstrate that in a simple task of reacting to “oddball“ word pairs, subjects read and linguistically processed both the function and the content word simultaneously presented in a given pair. Properties of the oddball ERP paradigm allowed for stipulation that word pairs would evoke P300 potentials, and that properties and differences between potentials evoked by grammatically congruent and grammatically neutral pairs would indicate a type of stimuli processing. To test such prediction, we paired a noun and a verb with a congruent preposition and a personal pronoun respectively, preceding them to create a grammatically constrained condition, or with the conjunction preceding both target words to create unconstrained condition. The stimuli were employed in the two-stimulus oddball paradigm. Main outcome of our experiment was that the stimuli chosen evoked clear P300 potential as deviants in three out of four situations. More interestingly, in each of the situations P300 peaked well after 400 ms, falling near the upper limit of P300 range as usually reported. Such P300 latencies marked semantic processing (Polich, 2007), and indicated subjects read and linguistically processed both words in pairs. Our results suggested that in order to study effects of the grammatical context on the visual word processing, the standard priming procedure in which primes temporally preceded targets might not be required, or that it could at least be complemented by methods involving simultaneous primes and target presentation less burdened by technical issues.
RAZVOJ PRENATALNE VEZANOSTI U KONTEKSTU ISKUSTVA IZ PORODICE POREKLA
Authors: Radovanović Mila , Mihić Ivana
Published: March 2018

Prenatalna vezanost se opisuje kao psihološka veza koja se razvija u toku trudnoće između majke i fetusa. Njen značaj ogleda se u kvalitetu brige trudnice za fetus, a smatra se da je ona i razvojni prethodnik emocionalne vezanosti između majke i deteta i važan aspekt formiranja roditeljskog identiteta i pripreme za odgovorno i kompetentno roditeljstvo. Predhodna istraživanja ukazuju na to da se obrasci koji formiraju roditeljski identitet prenose transgeneracijski, putem iskustva koje se internalizuje i oblikuje unutrašnji radni model čije komponente čine roditeljske reprezentacije. Zbog toga je cilj ovog istraživanja bio ispitivanje prediktivnog doprinosa introjektovanog iskustva iz porodice porekla na razvoj prenatalne vezanosti. Uzorkom je obuhvaćena 91 trudnica, a prikupljen je na Klinici za ginekologiju i akušerstvo u Novom Sadu gde su ispitanice boravile zbog određenih zdravstvenih tegoba u toku trudnoće. Za ispitivanje prenatalne vezanosti korišćena je Skala za procenu materinske prenatale vezanosti (SPMPV: Hanak, 2009), dok je kao mera iskustva u odnosu sa roditeljima korišćen modifikovan Upitnik prisustva oca (Father presence questionnaire − FPQ: Krampe & Newton, 2006). Rezultati ukazuju na to da efekat pozitivnog odnosa sa majkom ostvaruje najviši prediktivni doprinos u razvoju prenatalne vezanosti, što je u skladu sa istraživanjima koja ukazuju na pravilnost da su karakteristike starateljskog ponašanja direktno povezane sa prethodnim iskustvima koje su roditelji imali u porodicama porekla. Rezultati su diskutovani u kontekstu razumevanja uloge majke kao dominantnog staratelja u našem društvu, ali i ideje o modelovanju kao hipoteze u osnovi objašnjenja transgeneracijskog prenosa roditeljstva.
VALIDACIJA SRPSKE ADAPTACIJE SKALE AUTENTIČNOSTI U PARTNERSKIM ODNOSIMA - (AIRS)
Authors: Grijak Đurđa
Published: March 2018

Cilj ovog istraživanja je bio provera nekih psihometrijskih karakteristika srpske adaptacije Skale autentičnosti u partnerskim odnosima (Authenticity in Relationships Scale – AIRS; Lopez & Rice, 2006). Na uzorku od 706 studenata je primenjena konfirmatorna faktorska analiza kojom je potvrđena dvofaktorskа strukturа. Faktori skale su Neprihvatanje obmane i Preuzimanje intimnog rizika. Na uzorku od 206 studenata je testirana konvergentna validnost i test-retest pouzdanost. Konvergentna validnost je proverena testiranjem korelacija dva faktora sa pozitivnim i negativnim afektom, samopouzdanjem, dimenzijama autentičnosti (autentični život, prihvatanje spoljašnjih uticaja, samootuđenost), zadovoljstvom partnerskim odnosom, zadovoljstvom podrškom partnera. Obe subskale imaju dobru pouzdanost interne konzistencije, ali veoma nisku test-retest pouzdanost, što ukazuje na nestabilnost autentičnosti u partnerskim odnosima studenata.
Connexins: Synthesis, Post-Translational Modifications and Trafficking in Health and Disease
Authors: Aasen Trond , Johnstone Scott , Vidal-Brime Laia , Lynn K. Sabrina , Koval Michael
Published: March 2018

Connexins are tetraspan transmembrane proteins that form gap junctions and facilitate direct intercellular communication, a critical feature for the development, function and homeostasis of tissues and organs. In addition, a growing number of gap junction-independent functions are being ascribed to these proteins. The connexin gene family is under extensive regulation at the transcriptional and post-transcriptional level, and undergoes numerous modifications at the protein level, including phosphorylation, which ultimately affects their trafficking, stability and function. Here, we summarize these key regulatory events, with emphasis on how these affect their multi-functionality in health and disease.
Kategori Sayısının Psikometrik Özellikler Üzerine Etkisinin Mokken Homojenlik Modeli’ne Göre İncelenmesi
Authors: Şengül Avşar Asiye
Published: March 2018

Araştırmanın amacı çok kategorili puanlanan maddelerden oluşan testlerde kategori
sayısının psikometrik özellikler üzerindeki etkisinin parametrik olmayan madde
tepki kuramı (POMTK) modeli ile belirlenmesidir. Belirlenen amaç doğrultusunda iki
farklı büyüklükte (100 ve 500), çeşitli dağılım özelliklerine sahip (normal
dağılan, sağa çarpık dağılan ve sola çarpık dağılan) örneklemler için iki
farklı test uzunluğunda (10 madde ve 30 madde), üç farklı sayıda kategoriye (üç,
beş ve yedi) sahip maddeler simülatif olarak üretilmiştir. Kategori sayısının
psikometrik özellikler üzerindeki etkisi POMTK modellerinden Mokken Homojenlik
Modeli (MHM) ile araştırılmıştır. Yapılan araştırma temel araştırma olarak
tasarlanmıştır. Verilerin üretilmesinde ve verilerin analizinde R Studio 3.4.0 yazılımı kullanılmıştır. R Studio
yazılımında MHM’ye göre analizler Mokken paketi ile yapılmıştır. MHM’ye göre
yapılan ölçekleme sonucunda kategori sayısının değişmesiyle birlikte maddelerin
MHM’ye uyumunda belli bir örüntü gözlenmemiştir. Genel olarak hem kısa
testlerde, hem de uzun testlerde kategori sayısının güvenirlik değerlerinin
kestiriminde etkili olmadıkları gözlenmiştir. Araştırmada belirlenen test
koşullarında testler MHM’ye düşük düzeyde uyumlu çıkmıştır.
The Potential for Surface Mining a Heavy-Oil Reservoir: The Example of the Ratqa Lower Fars in the State of Kuwait
Authors: AlKaaoud Hassan A. , Singh Bharat , Marston David , McQuaid James , Devon John , Preene Martin , Hornbrook John , Pope Gary
Published: March 2018

Surface mining of hydrocarbon deposits is not a new technique, but its application has been mainly limited to the excavation of oil sands in the Athabasca Basin of Alberta, Canada, where the mining method has proved to be commercially successful, although in a narrow set of geological and environmental conditions. This paper discusses the scope for a broader application of a surface-mining approach and builds on the results of a conceptual study that examined the possibility of surface mining the viscous crude oil of the Ratqa Lower Fars (RQLF) reservoir in northern Kuwait. The study findings indicate that a large rate of crude oil might be profitably and sustainably produced for many decades through a surface-mining approach.
Characterization of a Biopolymer Produced by Arthrobacter Viscosus CECT 908 for Application in Microbial Enhanced Oil Recovery
Authors: Couto M. R. , Gudiña E. J. , Ferreira D. , Teixeira J. A. , Rodrigues L. R. , Soares L. P. , Ribeiro M. T.
Published: March 2018

Polymer-flooding is one of the most promising techniques used to increase the productivity of mature oil reservoirs. Polymers reduce the mobility ratio of the injected water relative to the crude oil, improving the displacement of the entrapped oil and, consequently, increasing oil recovery. Biopolymers such as xanthan gum have emerged as eco-friendly alternatives to the chemical polymers commonly used by the oil industry. However, in order to seek for more efficient biomolecules, alternative biopolymers must be studied. In the present work, the biopolymer produced by Arthrobacter viscosus CECT 908 was studied for the first time for a possible application in Microbial Enhanced Oil Recovery (MEOR). The rheological properties of this biopolymer were studied and compared with those of xanthan gum. The results demonstrated that the biopolymer produced by A. viscosus CECT 908 exhibited higher viscosity values (1207 ± 14 mPa.s at a concentration of 2.5 g/L, 40°C and a shear rate of 1.4 s−1) when compared with xanthan gum at the same conditions (281 ± 11 mPa.s). The structure of the biopolymer was not affected by high shear rates (up to 300 s−1), which is important for its application in enhanced oil recovery processes. Furthermore, it remained stable after exposure at high temperatures (up to 80°C) and salinities (up to 200 g NaCl/L), making it useful for application in a wide range of oil reservoirs. In sand-pack column assays performed using a heavy crude oil (η40°C= 167 mPa.s) this biopolymer allowed a higher additional oil recovery (25.7 ± 0.5%) when compared with xanthan gum (19.8 ± 1.2%) due to the achievement of a more favorable mobility ratio between the injected biopolymer solution and the crude oil, which resulted in a more uniform displacement front. The results herein obtained demonstrated, for the first time, that the biopolymer produced by A. viscosus CECT 908 is a promising agent for enhancing heavy oil recovery in high temperature and high salinity oil reservoirs.
Two Decades of Scholarship and Service: Report on the Canadian Institute of Ukrainian Studies (1992-2012)
Authors: Kohut Zenon E.
Published: March 2018

This essay provides an overview of the activity of the Canadian Institute of Ukrainian Studies (CIUS) during the two decades when the author served as its director. During that time he and his CIUS colleagues pursued the goals of integrating and mainstreaming Ukrainian studies into North American and world scholarship and becoming the leading world research institution dedicated to the discovery, preservation, and dissemination of knowledge about Ukraine and Ukrainians. The CIUS did so by supporting research; publishing scholarly and educational materials; organizing seminars, lectures, and conferences; promoting Ukrainian studies courses at colleges and universities; granting scholarships and fellowships; and providing knowledge and understanding of Ukraine to academic, political, diplomatic, military, and business communities in Canada and abroad. This essay describes these activities and efforts in detail, including in the areas of Ukrainian-Canadian studies, promoting Ukrainian studies in Ukraine and Russia, monitoring and assessing events in Ukraine, and assisting Ukraine’s transition to a democratic society and a free-market economy.
Contributions by Canadian Social Scientists to the Study of Soviet Ukraine During the Cold War
Authors: Harasymiw Bohdan
Published: March 2018

This article surveys major publications concerning Ukraine by Canadian social scientists of the Cold War era. While the USSR existed, characterized by the uniformity of its political, economic, social, and cultural order, there was little incentive, apart from personal interest, for social scientists to specialize in their research on any of its component republics, including the Ukrainian SSR, and there was also no incentive to teach about them at universities. Hence there was a dearth of scholarly work on Soviet Ukraine from a social-scientific perspective. The exceptions, all but one of them émigrés—Jurij Borys, Bohdan Krawchenko, Bohdan R. Bociurkiw, Peter J. Potichnyj, Wsevolod Isajiw, and David Marples—were all the more notable. These authors, few as they were, laid the foundation for the study of post-1991 Ukraine, with major credit for disseminating their work going to the Canadian Institute of Ukrainian Studies (CIUS) Press.
Studying the Blueprint for a Nation: Canadian Historiography of Modern Ukraine
Authors: Yekelchyk Serhy
Published: March 2018

This article discusses the development of a Canadian historiography of modern Ukraine. It argues that the early focus on Ukrainian nation building determined the range of topics that interested Canadian historians, but over the following years their methodology changed significantly. The development of social history provided indispensable tools for in-depth analysis of the Ukrainian national movement. The subsequent development of a new cultural history, post-colonial studies, and the “linguistic turn” allowed for a more subtle analysis of the Ukrainian patriotic discourse and practice. New scholarship focusing on the ambiguities of imperial projects and the everyday life allowed for a re-evaluation of the traditional emphasis on the national intelligentsia’s organic work. Because of its focus on the making of a modern Ukrainian nation, beginning in the 1990s Canadian historiography was well positioned to assist in the transformation of Ukrainian historical scholarship from Soviet models to new theoretical and methodological foundations. This often meant helping Ukrainian colleagues to revise the very “national paradigm” of history writing that early Canadian historians had helped develop. In the decades after an independent Ukraine emerged in 1991, the study of Ukrainian nation building became an increasingly global and collaborative enterprise, with historians from Ukraine studying and working in Canada, and with conferences on topics related to modern Ukrainian history involving scholars from around the world.
Monumental Landscapes and the Politics of Place: The First Lenin to Fall
Authors: Malaia Kateryna
Published: March 2018

On August 1, 1990, there was an unprecedented event in the Ukrainian town of Chervonohrad: a crowd gathered at the central square and, for the first time in the USSR, demolished a monument to Lenin. The demolition caused a political scandal and was the first of a chain of Lenin statue topplings all over Soviet Ukraine and beyond. Chervonohrad’s deconstruction is often compared to the array of Lenin statue demolitions that took place during the 2013-14 Ukrainian Revolution. Yet, this historic comparison does not answer the question: why was Chervonohrad, out of all the Soviet political centres and peripheral towns, meant to go down in history in this monumental way?Although the transformation of monumental landscapes has been among the most studied aspects of the post-Soviet condition, it has often been approached unilaterally. The studies of dismantled monuments have explored the largest scale of national and international politics, national imageries, and historic myth. The overwhelming attention paid to major metropolitan areas overshadowed the importance of place politics, local actors, and power relationships within former Soviet republics. As a result, the transformation of Soviet monumental landscapes has been sometimes misread as a top-down geopolitical process over the plain and ghostly backgrounds of post-Soviet metropolitan cityscapes. This article questions the scales and methods used to study monumental deconstruction. While national politics were undoubtedly an integral part of Chervonohrad’s milestone event, this study aims to understand the complex causes that led to the removal of the monument through Chervonohrad’s politics of place, the history of urban displacement and appropriation, and the agents and constellations that made this demolition possible.
Wolfram Dornik et al. The Emergence of Ukraine: Self-Determination, Occupation, and War in Ukraine, 1917-1922.
Authors: Golczewski Frank
Published: March 2018

Book review of Wolfram Dornik et al. The Emergence of Ukraine: Self-Determination, Occupation, and War in Ukraine, 1917-1922. Translated by Gus Fagan, CIUS P, 2015. xxx, 442 pp. Maps. Illustrations. Appendix (including Sources). Index. $39.95, paper.
Andrii Danylenko. From the Bible to Shakespeare: Pantelejmon Kuliš (1819–1897) and the Formation of Literary Ukrainian.
Authors: Sobol Valeria
Published: March 2018

Review of Andrii Danylenko. From the Bible to Shakespeare: Pantelejmon Kuliš (1819–1897) and the Formation of Literary Ukrainian. Academic Studies Press, 2016. Ukrainian Studies, edited by Vitaly Chernetsky. xxiv, 450 pp. Bibliography. Indexes. $89.00, cloth.
Editorial
Authors: Hall-Lew Lauren
Published: March 2018

Welcome to the first issue of the fourth volume of Lifespans & Styles , which features two papers that continue the journal’s  original mission of highlighting excellence in undergraduate research while furthering case studies of intraspeaker variation in sociolinguistics. While this issue is smaller than previous issues, both papers are of exceptionally high quality and relevance to our field.
Stylistic Variation and Stancetaking in the U.S. House of Representatives
Authors: Ochsner Gian Peter
Published: March 2018

This paper contributes to previous research on how politicians use sociolinguistic variables to index their party affiliation, enact stances, and construct political identities. It does so by investigating the 2015 U.S. House of Representatives’ debate on repealing the estate tax, with a focus on the indexical meanings of the “American tax variable”, which consists of the lexical variants estate tax and death tax. In the televised debate, 23 speakers use 31 estate tax tokens and 46 death tax tokens. As the results indicate, the estate tax variant indexes an affiliation with the Democrats and a pro-tax stance, whereas the death tax variant is linked with the Republicans and an anti-tax stance. Apart from expressing these conventionalised indexical meanings, House members also style-shift between the variants and employ them to convey interactional stances of (dis)alignment and empathy, construct a political identity of in-betweenness, and promote a conservative version of Americanism.
Diseño de escenarios virtuales para problemas de optimización a través de geometría dinámica
Authors: Villamizar Araque Freddy Yesid , Rincón Leal Olga Lucy , Vergel Ortega Mawency
Published: March 2018

El presente artículo tiene el objetivo de analizar la influencia del uso de tecnologías digitales, particularmente, de software de geometría dinámica, acompañado de una didáctica en la concepción y solución de problemas aplicados, en un enfoque de enseñanza activa, en temas de optimización. La metodología siguió un enfoque cualitativo, se desarrolló a partir de taller con profesores, en el cual se resolvieron problemas en el contexto de  máximos y mínimos de forma analítica y dinámica mediante el software geogebra. Resultados señalan la necesidad de implementar secuencias didácticas que guíen al a la concepción de optimización, la herramienta motiva la fase de enseñanza al permitir la simulación, modifica heurísticas y formas de solucionar un problema. Conclusión: la tecnología digital es factor motivante en la enseñanza, permite la visualización de representaciones de objetos matemáticos de manera dinámica, ayuda a la conceptualización si y solo si se apoya de secuencias didácticas.
Pagar bem os profissionais da EB - Construindo o sim e o como
Authors: De Monlevade João Antônio Cabral
Published: March 2018

O artigo trata do piso salarial dos profissionais e do mecanismo do “Custo-Aluno-Qualidade” (CAQ), ambos presentes em nossas leis, especialmente no Plano Nacional de Educação (PNE), a duras penas aprovados em 2014, e fala sobre a capacidade de financiamento do ensino público pelo Estado brasileiro.
Magistério público da EB - À luz da reforma do Estado
Authors: Pimentel Adriana Marinho , Gemaque Rolim Rosana Maria
Published: March 2018

O artigo revela que a regulação da carreira do magistério público da educação básica estava inserida no plano de reforma, que por ter seguido o receituário neoliberal, introduziu diferentes mecanismos reguladores, um dos obstáculos para a elaboração de planos de Carreira compro metidos com a valorização docente.
O profissional da educação na Constituição Brasileira
Authors: Ferreira Gilmar Soares
Published: March 2018

O artigo mostra como as lacunas da legislação brasileira e as  sucessivas gestões educacionais promovem de forma contínua a quebra de ações e o contingenciamento de recursos, e terminam por impedir o caminho rumo à qualidade social de nossa educação,que começa, principalmente, com investimento em pessoal e em sua profissionalização.
Implementação do PSPN e subsídio na Rede Estadual de Ensino de MG
Authors: Coelho Clayton Lúcio , Oliveira Rosimar de Fátima
Published: March 2018

O artigo evidencia as mudanças no plano de carreira dos docentes da Rede Estadual de Ensino de Minas Gerais, a partir de 2010, com a implementação do subsídio, que alterou a forma de pagamento e a estrutura da carreira, em atendimento à  legislação federal do Piso Salarial Profissional Nacional, a desvalorização da profissão com redução dos percentuais de movimentação, além do  reposicionamento do servidor mais antigo ao início da carreira.
Documento - CNTE
Authors: CNTE Editor
Published: March 2018

sem resumo.
Ensino médio no Brasil: A formação docente desde 1990
Authors: Lima Sônia Maria , Andrade Maria Andreia , Stamatto Maria Inês Sucupira
Published: March 2018

O artigo apresenta uma análise realizada nos referenciaiscurriculares nacionais do ensino médio (Dcnem, Pcnem, Ocnem,Enem, Plano Nacional de Formação de Professores), bem como naLei de Diretrizes e Bases da Educação Nacional (Ldben) e no PlanoNacional de Educação 2014-2024 (PNE), com o objetivo de endossaro debate acerca da trajetória das mudanças curriculares que vêmsendo propostas para o ensino médio, da década de 1990 aos diasatuais, e, em especial, para compreender como esses documentosvêm situando a formação de professores, dada sua relevância parao desenvolvimento profissional
LDB - projetos em disputa: Da tramitação à aprovação em 1996
Authors: Nóbrega Bollmann Maria Graça , Aguiar Letícia Carneiro
Published: March 2018

O artigo tem como objetivo contribuir, na discussãodos vinte anos da Lei de Diretrizes e Bases da Educação Nacional(LDB), para uma reflexão do processo de elaboração, tramitação eaprovação da LDB, a Lei nº 9.394, de 1996, nos anos de 1980 e 1990,nos limites da luta no âmbito legislativo. Busca, sobretudo, destacaros avanços e recuos nas propostas de setores sociais integrantesdo Fórum Nacional em Defesa da Escola Pública, em contraposiçãoao projeto privatista e neoliberal.Palavras-chave: Educação Pública. LDB. Fórum N
Educação do campo e LDB: Uma relação quase vazia
Authors: Munarim Antonio
Published: March 2018

O texto aborda o contexto da emergência da educaçãodo campo no Brasil enquanto concepção e prática política forjada noventre dos movimentos sociais do campo e seus apoiadores. Estabelecerelação entre lutas por políticas públicas específicas de educaçãoescolar, pelo Movimento Nacional de Educação do Campo, e a Lei deDiretrizes e Bases da Educação Nacional (LDB). Propõe como moteda discussão o entendimento de que, embora haja contemporaneidadena emergência das lutas populares por educação e elaboraçãoda LDB, muito pouco, ou quase nada, há de correspondência produtivaentre um e outro feito histórico.
O vigésimo ano da LDB: As 39 leis que a modificaram
Authors: Saviani Dermeval
Published: March 2018

Ao ensejo da comemoração dos vinte anos de vigênciada Lei de Diretrizes e Bases da Educação Nacional (Lei nº 9.394,de 20 de dezembro de 1996), conhecida pela sigla LDB, este artigoaborda as mudanças decorrentes das 39 leis aprovadas entre 1997e 2015, destacando aquelas que provocaram as modificações maissignificativas na educação brasileira.
High Bond Durability of Universal Adhesives on Glass Ceramics Facilitated by Silane Pretreatment
Authors: Yao C , Yang H , Yu J , Zhang L , Zhu Y , Huang C
Published: March 2018

Objective:

This study aimed to investigate the long-term effectiveness of ceramic–resin bonding with universal adhesives in non–silane-pretreated and silane-pretreated modes after 10,000 cycles of thermal aging.

Methods and Materials:

All Bond Universal, Adhese Universal, Clearfil Universal Bond, and Single Bond Universal were selected. Etched lithium disilicate glass ceramics were prepared, randomly assigned to groups, and pretreated with or without ceramic primer containing silane coupling agent prior to the application of universal adhesive (ie, silane-pretreated or non–silane-pretreated mode). The shear bond strength (SBS), microleakage, and field-emission scanning electron microscopy images of the ceramic–resin interfaces were examined after 24 hours of water storage or 10,000 thermal cycles. Light microscopy and confocal laser scanning microscopy (CLSM) were performed to analyze marginal sealing ability.

Results:

SBS and microleakage percentage were significantly affected by bonding procedure (non–silane-pretreated or silane-pretreated mode) and aging (24 hours or 10,000 thermal cycles). After the universal adhesives in the non–silane-pretreated mode were aged, SBS significantly decreased and microleakage percentage increased. By contrast, the SBS of Adhese Universal, Clearfil Universal Bond, and Single Bond Universal decreased, and the microleakage percentage of all of the adhesives increased in the silane-pretreated mode. However, after aging, the SBS of the silane-pretreated groups were higher and their microleakage percentages lower than those of the non–pretreated groups. In the non–silane-pretreated mode, adhesive failure was dominant and gaps between composite resin and the adhesive layer were significant when observed with CLSM.

Conclusions:

The simplified procedure reduced the ceramic–resin bonding effectiveness of universal adhesives after aging, and additional silane pretreatment helped improve the long-term durability.
WATER COMPOSITION ASSESMENT FROM THE WATER SUPPLY AND MINERAL WATER
Authors: Wanot Bartosz , Milkiewicz Piotr , Arfao Antoine Tamsa
Published: March 2018

Water is a key factor conditioning our lives and the minerals dissolved in it are one of the main sources of supplementing their deficiency. Water makes up about 60% of the body weight of an adult human, while the human body does not store water, which is why it is very important to permanently refill it. Without water, it would be impossible to have many processes in the body such as digestion, regulation of body temperature, proper mobility of joints or intrabody transport of nutrients and metabolic products. Water supplied to the body comes mainly from two distribution channels, as bottled water or water from the water conduit. In recent years, there has been a significant increase in the consumption of bottled water, which is the result of ubiquitous advertising of drinking water in this form. However, there is a group of consumers who drink tap water.
The aim of the work was to compare the content of selected minerals in botteled waters purchased in stores and water from the water supply network. An attempt was made to answer the question whether the incurring of higher costs for the purchase of bottled water is justified in order to satisfy the body's needs for minerals or perhaps tap water meets these needs to a similar degree.
Comparison of the content of selected mineral components in tap water and bottled water shows that in most cases tap water is not inferior to the content of the determined minerals in bottled water.
FORMATION OF ENTREPRENEURIAL COMPETENCE OF STUDENTS OF VOCATIONAL EDUCATIONAL INSTITUTIONS OF UKRAINE BY MEANS OF MODERN EDUCATIONAL TECHNOLOGIES
Authors: Kulishov Volodymyr
Published: March 2018

The article is devoted to the main directions of formation of entrepreneurial competence of students of professional educational institutions by means of educational technologies based on the activity basis. The content of the concept of “entrepreneurial competence” is substantiated and the ways of its formation with the help of web quest technology is considered.
Congestion costs in the European Union
Authors: Dyt Tadeusz , Kozłowska Małgorzata
Published: March 2018

In March 2017, the European Commission has published a study report on urban mobility in terms of urban accessibility. Within these studies, the costs of congestion in each Member States of the European Union have been estimated. In this article, against the background of theoretical considerations, the most important results and conclusions of the study are presented.
Sobre Claudia Feld y Marina Franco (dirs.), Democracia, hora cero. Actores, políticas y debates en los inicios de la posdictadura
Authors: Mira Delli-Zotti Guillermo
Published: March 2018

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TUTORIAL SOFTWARE: ANALISIS DATA MENGGUNAKAN PEMROGRAMAN MAKRO MINITAB
Authors: Irwan Muh.
Published: March 2018

Minitab merupakan salah satu paket program pengolahan data statistik yang sangat baik dan digemari oleh statistisi maupun ahli teknik. Minitab memiliki bahasa pemrograman yang dikenal dengan macro minitab. Pada bagian pembahasan telah dijelaskan operator, perulangan, control statement dan tipe data sebagai dasar pemrograman lanjutan dalam minitab. Sehingga minitab menjadi alternatif bahasa pemrograman yang dapat digunakan dalam menjelaskan data dalam kehidupan sehari-hari.
SOLUSI INTEGRASI NUMERIK DENGAN METODE SIMPSON (SIMPSON’S RULE) PADA TRANSFORMASI HANKEL
Authors: Erma Ermawati , Alwi Wahidah , Nur Nursyamsi
Published: March 2018

Artikel ini membahas tentang integral tak tentu berupa transformasi Hankel. Salah satu metode integrasi numerik yang dapat digunakan untuk menyelesaikan integral tersebut adalah metode Simpson (Simpson’s rule). Untuk menghitung integrasi tersebut melingkupi nilai dari titik absis pias dan nilai fungsi dari titik absis pias, dengan penggunaan n titik pada metode Simpson dibatasi pada n = 8, 16, 24, 32, 40 dan 48. Penelitian ini bertujuan untuk: 1)mendapatkan solusi integrasi numerik transformasi Hankel menggunakan metode Simpson (Simpson rule) 1/3. 2) mendapatkan solusi integrasi numerik konduksi panas pada silinder menggunakan metode Simpson (Simpson rule) 1/3. Solusi integrasi numerik transformasi Hankel yaitu n8=0,217301164, n16=0,21731224, n24=0,217312853, n32=0,217312986 ,n40=0,217312986 dan n48=0,217312988 telah memenuhi kriteria pemberhentian 10−5. Metode Simpson 1/3 dapat digunakan untuk mencari solusi integrasi numerik konduksi panas pada silinder, aproksimasi dari panas yang dihantarkan pada silinder yaitu n8=2,203257893,n16=2,427428998,n24=2,50249395,n32=2,540077619, n40=2,562800972, dan n48=2,576328272. menunjukkan bahwa semakin besar nilai dari n titik yang digunakan, maka aproksimasi/pendekatan dari panas yang dihantarkan akan semakin baik.
Aðgengi fullorðinna að námi á framhaldsskólastigi: Stofnana- og aðstæðubundnar hindranir á menntavegi
Authors: Welding Hákonardóttir Elín Sif , Einarsdóttir Sif , Guðmundsdóttir Arnheiður Gígja , Guðmundsson Gestur
Published: March 2018

Markmið þessarar rannsóknar var að kanna hvaða hindranir mæta fullorðnu fólki sem hefur hug á að ljúka námi á framhaldsskólastigi. Tekin voru viðtöl við átta einstaklinga á aldrinum 25–30 ára sem stunda nám á vegum framhaldsfræðslunnar og eru í aðfaranámi. Í frásögnum þeirra vógu aðstæðu- og stofnanabundnar hindranir mun þyngra en viðhorfsbundnar hindranir. Helsta hindrun nemendanna var fjármögnun námsins þar sem unga fólkið býr við þröngan fjárhag og er með fjölskyldu á framfæri. Flókið reyndist að samþætta fjölskyldulíf og vinnu með námi og það skapaði mikið álag í lífi þess. Einnig kom fram að upplýsingar um nám og fjárstuðning í boði eru oft óljósar og viðmælendur töldu að framboð og skipulag náms kæmi ekki nægjanlega til móts við þarfir þeirra fyrir stuðning og sveigjanleika. Þátttakendur sýndu frumkvæði og þrautseigju við að yfirstíga margvíslegar hindranir sem þeir mættu á menntaveginum. Hvatinn að rannsókninni er ekki síst sá að stjórnvöld hafa sett markmið um hærra menntunarstig þjóðarinnar en afar hægt gengur að ná þeim markmiðum. Rannsóknin getur því nýst stjórnvöldum við stefnumótun og menntastofnunum og aðilum fullorðinsfræðslu við að fækka stofnana- og aðstæðubundnum hindrunum á vegi fullorðinna námsmanna.
The Possible Reader – How Can He Be ‘Possible’?
Authors: Xhindi Ermir , Xhindi Erjona
Published: March 2018

How can it be possible that the value of a critical instrument as a theoretical category is proved as valuable in practice? In reading cases, especially during the interpretation of fictional texts, this would be an attractive ideal, at least as a methodological premise. In this work, we represent some theses on the equivalence of the Possible Reader as a theoretical instrument, with the Empirical (real) Reader of fictional texts. We are focused on presenting a hybrid Eco (Umberto) - Fish (Stanley) Model (EFM), the relevant structure and its function, its validity in implementation. The Structuralist Model of Eco (Umberto) is seen in function of text constructing, while the Phenomenological Model of Fish (Stanley) is seen as an alternative to meaning issues, as a complementary entity with Eco’s model. What can be said, for now, is that not only in the ethical level, but also with concrete results, this method justifies itself. The meaning produced by the Possible Reader as a theoretical category appears almost in the same parameters with the meaning produced by a community of empirical readers. We should specify, at the end, that the model is in its experimental phase, as it will need more exhaustive theorizing in the future.
New Year’s Initiation Processions of Teenagers: The Case of “Young Gegides” of Emporio, Eordaia
Authors: Ioakeim Karepidis K.
Published: March 2018

The social coming of age is an issue in many - if not in all - cultures through the procedures of initiations. Such ceremonies have always existed since in the traditional societies the biological adulthood happens through the society - community. The fact that these ceremonies are old is proven through totem worships that have survived until today. Obviously in our era the conceptual core of these ceremonies has transformed since the adulthood is no longer a social issue but a legal one. So these processions have a new form adjusted to the social - historical and cultural circumstances. This article deals with this adjustment observing the ancient issue of initiation processions of teenagers (agermos) through a modern point of view. Specifically, with the excuse of the custom “Young Gegides” of Emporio, Eordaia, that takes place on New Year’s Day, the article studies the way that these processions happen now in this community, their functionality and the meaning that is attributed to them not only by those who take part but also by the community. It also studies the reasons - the triggering events that led through time to these changes and finally to the adjustments and the way that these innovations became assimilated in the local community.
The Significance of Place in Urban Governance: Mart 125 and the Politics of Community Development in Harlem, New York
Authors: Mchunu K. H. , Mbatha S.
Published: March 2018

The paper highlights the nexus between place and identity on the one hand, and urban entrepreneurialism on the other, which has become important nationally and internationally in recent decades. This refers to a form of urban governance that mixes together state with civil society and private interests to promote urban development. The city as a product of a common if perpetually changing and transitory urban life, “growth machines” or “urban regimes” play a significant role in the relationship between place and identity. This paper documents an instance of this relationship where the “growth machines” played themselves out in Harlem, New York City.
The Exploratory Study Experience: Developing as a Researcher
Authors: Alves Patrícia , Lima-Basto M. , Oliveira Célia Simão
Published: March 2018

This article presents the experience of the researcher during the exploratory study, within the scope of her research in a qualitative paradigm, using the Grounded Theory as a methodological approach, which aims to understand the process of nursing care to the end-of-life patient in the performing activity of living eating and drinking. While structuring the research project, it became important to explore the field of data collection (hospice care unit of a hospital in the Lisbon region) in order to achieve a contact with the reality (represented by the actors), allowing an overview and approximation of the phenomenon under study, the break with the investigator's prentices and the modification of these ideas as well as the construction of the researcher's acceptance by the actors (potential participants), and the decision making during the research course. The sharing of this experience as well as the critical reflections presented here, enabled the researcher to review the difficulties encountered and the strategies used to overcome them, to become aware of the lessons learned and to consolidate them. It is also hoped that the sharing of this experience will help other researchers in their path, allow them to perceive that the mishaps / difficulties of the course they are carrying out are common, that a lot of critical reflection is needed on this trajectory, eventually finding strategies for the problems they might face.
Disaster Risk Reduction for Earthquake Using Mobile Learning Application to Improve the Students Understanding in Elementary School
Authors: Winarni Endang Widi , Purwandari Endina Putri
Published: March 2018

Indonesia is located in the ring of fire and frequently hit by tectonic earthquake. Education could be one of the strategic and effective efforts to reduce the earthquake risk. Therefore, there is a need to provide knowledge about the earthquake disaster mitigation, especially in elementary school, and to grow the "Safety Culture" in school. This paper focuses on how the integration of mobile learning application in elementary school could enhance the ability of disaster risk reduction especially for earthquake mitigation in Bengkulu, Indonesia. The type of research was Pre-Experimental Design with one-group pretest-posttest design. Data collection was a test of students' understanding of earthquake disaster mitigation that includes pre-disaster, disaster, and post disaster. The independent variable was learning to use mobile learning application. The dependent variable was students' understanding of earthquake disaster preparedness. The pre-test and post-test results show that the value of t (0.975) for two-tailed test on the distribution of student (t) dk is 58 and obtained t-table is 2,001 and the calculation t is -8.02; therefore, the null hypothesis is rejected. This implies that there is an influence of educational mobile application to the students for earthquake disaster mitigation. The experiment also shows that educational mobile application influences the students understanding about earthquake disaster preparedness. Thus, mobile learning application can be effective tools for earthquake education, because it displays the earthquake information in more interactive manner.