bluuebunny/crossref_metadata_2025 huggingface dataset:
Estratégias de contextualização no ensino de botânica em livros didáticos de biologia do ensino médio
Authors: Silva Rodrigo de Cássio
Published: April 2018

O presente artigo discorre sobre as diferentes estratégias de contextualização no ensino de botânica, em livros didáticos de Biologia do Ensino Médio. Tendo em vista a importância dos vegetais para o homem e a manutenção da vida, faz-se necessário o entendimento dos mais variados fenômenos envolvidos nesta teia de relações. Para este trabalho realizou-se uma pesquisa básica, do tipo descritivo, sendo esta de natureza qualitativa e de campo em que foram observados os seguintes recursos nos livros: texto informativo, figuras, fotografias, quadro comparativo, esquemas e boxes explicativos, bem como a associação destes. Com a finalidade de identificar de que maneira os livros didáticos exploram os recursos para a contextualização do ensino de Botânica, servindo então como um facilitador da aprendizagem significativa. Após a identificação destes aspectos, realizou-se uma breve discussão em relação aos recursos, associados a temas previamente selecionados, dentro do grupo dos vegetais. Pode-se perceber que os livros didáticos, em sua maioria, exploram principalmente a fotografia como um recurso ligado a aproximação dos conteúdos à realidade cotidiana dos alunos. Destacando-se, também, o uso de boxes explicativos como uma alternativa para evidenciar situações em que a Botânica se faz presente na vida humana.DOI: http://dx.doi.org/10.22169/revint.v11i24.1053
Análise do tema “características dos seres vivos” em livro didático no ensino médio
Authors: Santana Natália , Silva Zeneide Martins da
Published: April 2018

Resumo Visto que o livro didático assumiu certa importância dentro da prática de ensino brasileira nestes últimos anos, há uma preocupação crescente em tornar este recurso mais adequado a compreensão dos alunos. Neste contexto, este trabalho propõe uma série de critérios que podem ser utilizados por professores de biologia, tendo como modelo o conteúdo as características dos seres vivos. Foram utilizados três livros didáticos que foram analisados com base em nove critérios de classificação, pretende-se, com este trabalho permitir uma maior reflexão por parte dos profissionais da área de biologia em relação a escolha dos livros didáticos que serão utilizados em sala de aula. Palavras-chaves: Livro didático; Critérios de avaliação; Características dos seres vivos; Ensino de biologia. Abstract Since textbooks have become quite important within the Brazilian education system in recent years, there is growing concern in making such resource more appropriate to students’ understanding. Thus, the following study proposes a number of criterion that can be used by biology teachers, regarding the characteristics of living beings. Three textbooks, based on nine classification criterion, were used. Its objective is to allow further reflection by biology professionals regarding the selection of textbooks to be used in the classroom.   Keywords: Textbook; Evaluation criteria; Living beings characteristics; Biology teaching.   Resumen Desde el libro de texto supone una cierta importancia en la práctica de la educación brasileña en los últimos años, existe una creciente preocupación en la fabricación de este uso más adecuado de comprensión del estudiante. En este contexto, el presente documento propone una serie de criterios que pueden ser utilizados por los profesores de biología, el contenido de modelado de las características de los seres vivos. tres libros de texto fueron utilizados los cuales fueron analizados en nueve criterios para la clasificación, se pretende con este trabajo permitirá una mayor reflexión por parte de los profesionales de la biología con respecto a la selección de los libros de texto para ser utilizados en el aula. Palabras clave: Libros de texto; Criterios de evaluación; Características de los seres vivos; Enseñanza de la biología. DOI: http://dx.doi.org/10.22169/revint.v11i24.1065
Herramientas aliadas para fomentar una didáctica que desarrolle competencias en los profesionales de la educación
Authors: Pérez López José António , Wunsch Luana Priscila , Machado Dinamara
Published: April 2018

Resumen Este artículo pretende, representación de en un estudio cualitativo, dejar en claro la extensión del uso de las tecnologías como base profesional del profesorado, cómo realiza el Internet un papel, ahora vital, en los espacios formativos de los maestros y, aun, cómo potenciar las redes sociales como herramientas aliadas para fomentar una didáctica que desarrolle competencias en los profesionales de la educación. Los docentes tienen nuevos recursos a disposición y los discentes reciben la información a través de nuevos canales, por lo que ellos están inmersos en la dinámica de las redes sociales, la cual puede ser un recurso aliado de acuerdo a la motivación que genera en ellos y el fácil acceso a estas, por tal motivo a través de una buena guía otorgada por el profesional de la educación, el cual esta en formación, podrá entonces atender la demanda de la dinámica en la que viven millones de internautas en nuestro país. Palabras claves:  redes sociales, competencias, formación y actualización.   Abstract This document seeks to clarify the widespread use of technology in the classroom, how does the Internet an important role now in academic and how to strengthen social networks as tools to encourage allies to develop teaching skills in the professional of education. Teachers have new resources at our disposal and learners receive information through new channels, so that they are involved in the dynamics of social networks, which can be a resource partner according to the motivation that generates them and easy access to these, as such through good guidance given by the professional education, which is in formation, will then meet the demands of the dynamic in which millions of Internet users in our country. Key words: social networking, teaching, skills, training and updating. DOI: http://dx.doi.org/10.22169/revint.v11i24.1148
A utilização do ambiente visual de programação para a contribuição do desenvolvimento do pensamento criativo
Authors: Bressan Manuelle Lopes Quintas , Amaral Marilia Abrahão
Published: April 2018

Resumo Ensinar programação para crianças e adolescentes é um novo desafio na educação básica. Neste âmbito, este artigo é um recorte de uma dissertação de mestrado com o objetivo de verificar se a utilização do Scratch pode contribuir para o desenvolvimento do pensamento criativo por meio da aprendizagem baseada em problemas em crianças e adolescentes que participantes de oficinas no contraturno escolar. O estudo evidenciou que o Scratch ajudou no desenvolvimento de capacidades avaliativas, permitindo a reformulação de resoluções e facilitando a estruturação  e organização do pensamento e do trabalho coletivo. Palavras-Chave: Educação básica; Scratch; Pensamento criativo. Abstract Teach programming to children and adolescents is a new challenge in elementary and high school education. In this context, this paper presents a parts of a dissertation study aimed at determining if the use of Scratch can contribute to the development of creative thought through based learning problems in children and adolescents participating workshops after school . The study showed that the Scratch helped in the development of evaluative capabilities , allowing the reformulation of resolutions and facilitating the structuring and organization of thought and collective work. Key- words: Elementary School; Scratch; Programing;Creative thinking   Resumen Enseñar programación para niños y adolescentes es un nuevo reto en la educación básica. En este contexto, este artículo es un corte de tesis con el objetivo de verificar si el uso del cero puede contribuir al desarrollo del pensamiento creativo a través del aprendizaje basado en problemas en niños y adolescentes que participan en talleres en contraturno escolar.El estudio mostró que el scratch ayudó en el desarrollo de capacidades, permitiendo a la refundición de las resoluciones evaluativo y facilitando la estructura y organización de pensamiento y de trabajo colectivo. Palabras clave: Educación; Cero; Pensamiento creativo.  DOI: http://dx.doi.org/10.22169/revint.v11i24.759
Orientação de trabalhos de conclusão de curso a distância: uma análise parcial dos métodos e resultados obtidos entre 2013 e 2015
Authors: Constantino Paulo
Published: April 2018

Resumo O seguinte artigo relata uma experiência de orientação de trabalhos de conclusão de curso em atividades exclusivamente à distância, em um curso de formação continuada para a docência de jovens e adultos. Aliado à pesquisa documental empreendida entre as turmas de 2013 e 2015, o estudo apresenta brevemente a metodologia empregada e os resultados parciais obtidos em um curso semipresencial ofertado em instituição pública de educação profissional. A participação expressiva dos cursistas nas atividades, os índices de aprovação dos trabalhos de conclusão de curso recebidos e a diversidade das temáticas presentes nos textos são indicativos do êxito da proposta descrita. Palavras chave: Orientação de TCC; Formação continuada; EaD.       Abstract The following study reports an experience in undergraduate research thesis tutoring exclusively based in e-learning systems, on ongoing training for young people and adults teachers. Along with a documentary research between 2013 and 2015, the study briefly presents the methodology used and the results obtained in a blended learning course offered at a public institution of vocational education. A significant participation of the students in the activities, the approval ratings and the diversity of themes present within the course papers demonstrate the success of the proposal. Keywords: Undergraduate research thesis tutoring; Ongoing Training; E learning.     Resumen Se presenta una experiencia de orientación en las actividades de la educación a distancia, en un curso para enseñar a los jóvenes y adultos. En combinación con la investigación documental realizada entre 2013 y 2015 clases, presenta la metodología y los resultados en un curso ofrecido en una institución pública de educación profesional. Los participantes en el curso de las actividades, los índices de aprobación y la diversidad de los temas presentes en el curso de la finalización de los estudios demuestran el éxito de la propuesta. Palabras clave: Orientación de trabajo; Educación continua; Educación a Distancia.DOI: http://dx.doi.org/10.22169/revint.v11i24.936
Sobre processos de gestão escolar desde a perspectiva de educadores-gestores em uma rede privada de educação
Authors: Ferreira da Silva Gilberto , Casagrande Cledes Antonio , Pauly Evaldo Luis
Published: April 2018

Este artigo tem por objetivo explorar as representações de educadores de uma rede privada de ensino sobre gestão escolar. Contempla a análise de literatura e de dados empíricos oriundos de uma pesquisa já finalizada. Parte da seguinte questão: quais compreensões de gestão possuem estes profissionais e como dinamizam o ato de adminstrar o espaço escolar? DEntre os resultados obtidos, ressaltamos a importância atribuída aos principios e à tradição institucional, o sentimento de pertencimento a instituição e o acúmulo de atribuições do diretor escolar, que acaba relegando as funções de caráter pedagógico a um segundo plano em favor das funções admnistrativas.DOI: http://dx.doi.org/10.22169/revint.v12i25.1102
“Vidas secas”, de Graciliano Ramos: da linguagem discursiva para a visual.
Authors: Olivati Alice Elias Daniel , Schettino Paulo Braz Clemencio
Published: April 2018

RESUMOA pesquisa teve como objetivo estudar as adaptações da obra literária Vidas Secas, de Graciliano Ramos, da linguagem escrita para o cinema, realizada por Nelson Pereira dos Santos. O primeiro conhece-se pelo seu estrato fônico-lingüístico configurado por um entrelaçamento de vocábulos, sintagmas, efeitos sonoros materializados por meio de seu sistema sígnico firmemente baseado na palavra. O segundo, pela linguagem visual, formada através de movimentos de câmera, gestos, fala de personagens, trilha sonora e prescinde, ora mais ora menos, do texto verbal para se constituir. A trajetória teórico-metodológica proposta para a investigação contou com a Semiótica da Cultura; reflexões sobre as artes e seu poder de comunicação; a cultura de massa, os meios, as especificidades da literatura e do cinema. O estudo comparativo da obra que empreendemos em nossa pesquisa, constituiu-se caminho que nos levou à compreensão de que a travessia de signos captados da literatura, sua integração e incorporação em outras formas de expressão, podem ser capazes de engendrar novas concepções no cinema, de modo a recriar e a enriquecer a cultura em tempos de seduções mediáticas.DOI: http://dx.doi.org/10.22169/revint.v12i25.1178
EDUCAÇÃO EM SAÚDE NA ESCOLA: VIVÊNCIA INTERDISCIPLINAR NA FORMAÇÃO DOCENTE EM UM PROJETO DE EXTENSÃO UNIVERSITÁRIA
Authors: Pissaia Luís Felipe , Quartieri Marli Teresinha , Schuck Rogério José , Schwertner Suzana Feldens
Published: April 2018

Trata-se de um relato de experiência docente no projeto de extensão universitária Veredas da Linguagem, vinculado ao curso de Letras da Universidade do Vale do Taquari - UNIVATES, que atua frente ao ensino de língua portuguesa e estratégias de leitura a imigrantes haitianos residentes no Vale do Taquari/RS por meio do desenvolvimento de objetos digitais de aprendizagem. Compreendeu-se que o projeto possui um viés comunitário com responsabilidade social e atua como apoiador da rede municipal de ensino. Vivenciou-se a atuação interdisciplinar como característica marcante do projeto, instruída através da comunicação e troca de experiências entre distintos profissionais. Considera-se que o perfil do enfermeiro enquanto educador é amplo e necessário na sociedade atual, instrumentalizado pelos diferentes saberes e competências desenvolvidas. O “desacomodar” tornou-se palavra chave no processo de construção do ser professor que se alavancou como um desafio motivador perante a situação. Neste sentido, considera-se que a formação do professor sob a realidade interdisciplinar propicia a construção de um processo de ensino e aprendizagem pautado no saber refletivo e interativo com a atualidade.
Letter to the editor
Authors: Avramovic Ivana , Vujovic Milan
Published: April 2018

Commentary on the article entitled ?The spatial and urban planning concerns
related to nuclear facilities locations - Case Study of the Vinca Institute
Location? by Nebojsa D. STEFANOVIC, Natasa M. DANILOVIC HRISTIC, and Bosko
D. JOSIMOVIC published in the journal Nuclear Technology & Radiation
Protection: Year 2017, Vol. 32, No. 1, pp. 99-108
Análisis de la calidad de servicio de una red WiMAX en conformidad con el estándar IEEE 802.16-2009 en escenarios exteriores / Analysis of the Quality of Service of a WiMAX network in accordance with IEEE 802.16 -2009 in outdoor scenarios
Authors: Vaca Cano Carlos Eduardo , Lara Cueva Román Alcides
Published: April 2018

El desarrollo tecnológico de las comunicaciones inalámbricas ha hecho que distintos dispositivos se vayan posicionando cada vez más en la vida cotidiana de los usuarios, con lo cual surge la demanda de soportar las mismas aplicaciones que se tienen en una red cableada. Ante esta exigencia se presentan limitaciones de ancho de banda, como es el caso de las redes inalámbricas WiMAX (Worldwide Interoperability for Microwave Access). Por lo tanto, se impone la necesidad de brindar calidad de servicio (QoS del inglés Quality of Service) para garantizar el desempeño del sistema en esa red. En este contexto, el objetivo de este artículo es realizar un análisis de los parámetros de QoS en la tecnología WiMAX según el estándar IEEE 802.16-2009 dentro de una topología diversificada de escenarios exteriores, mediante la utilización de una técnica intrusiva de inyección de tráfico para la obtención de las métricas de desempeño, como el retardo, jitter, paquetes perdidos y eficiencia del enlace. En este sentido, se ha verificado que el sistema cumple con las especificaciones necesarias para soportar aplicaciones como televisión digital y VoIP en tiempo real.
Violación del derecho a la consulta indígena: siembra de soya transgénica en comunidades mayas del estado de Campeche, México / Violation of the indigenous rights to be consulted: transgenic soy bean sowing in Mayan communities from the state of Campeche, Mexico
Authors: Negrín Muñoz Eduardo
Published: April 2018

En el año 2012, fue autorizada la siembra de soya genéticamente modificada a escala comercial en comunidades mayas del Estado de Campeche, México. A este hecho se opusieron organizaciones indígenas mediante la vía legal -amparo-, obteniendo, luego de tres años, un fallo favorable de la Suprema Corte de Justicia de la Nación, pero aún no definitivo, ya que la máxima instancia condicionó la siembra de soya genéticamente modificada  a la realización de una consulta en las comunidades afectadas.Las primeras convocatorias de dicha consulta se realizaron desde el 31 de marzo de 2016.De acuerdo con el protocolo presentado por las autoridades encargadas de la organización y puesta en marcha del proceso de consulta, el mismo constará de cinco fases. Hasta el 23 de septiembre de 2017, se han realizado cinco sesiones que corresponden apenas a la primera fase del proceso de la consulta, que es la de acuerdos previos.Debido a que esta figura de la consulta es relativamente nueva en México, y a la marcada y tradicional relación asimétrica que existe entre autoridades oficiales y comunidades indígenas, el proceso al que se hace referencia se ha visto entorpecido debido a que las primeras están acostumbradas a imponer condiciones y las segundas están decididas a defender sus derechos.De esta manera, el tema principal del presente trabajo es mostrar el desarrollo, por demás irregular, de este proceso de consulta.
Részlegesen dolomitosodott alsó-jura mészkő a tatai Kálvária-dombon
Authors: Győri Orsolya , Mindszenty Andrea , Haas János , Czuppon György
Published: April 2018

A tatai Kálvária-dombon feltáruló alsó-jura mészkőben korábban nem azonosított dolomit testet ismertünk fel. A dolomit test egy repedés mentén jelenik meg és egy szintben a Pisznicei Mészkő réteglapjával párhuzamosan is kiterjed, így „gomba” metszetet mutat. A dolomit finom-középkristályos, és helyenként nyeregdolomit is megjelenik. A dolomittestet breccsazóna harántolja. A klasztokat több generációs fehér-szürke-sárga kalcit cementálja, amelyben zárványként apró dolomittörmelék is megfigyelhető. A dolomittest nem breccsásodott, hanem rétegződéssel párhuzamos kalciterek vágják át. Dolomit utáni kalcit pszeudomorfózát (dedolomitot) is azonosítottunk a Pisznicei Mészkő breccsazóna melletti szakaszán. A három különböző dolomit (finom-középkristályos helyettesítő dolomit, nyeregdolomit cement, törmelékes dolomit zárványok a kalcitban) valamint a később kalcittal helyettesítődött dolomit képződése is feltételezhetően ugyanahhoz a dolomitosodási eseményhez köthető. A repedés mentén áramló, esetenként réteglap mentén elszivárgó fluidum szövetromboló módon dolomitosította a mellékkőzetet. Ennek a dolomit fázisnak a törmelékét találjuk meg a breccsazónát cementáló kalcit zónái között. A dolomitosodás repedéshez kötötten ment végbe. A stabilizotóp értékek betemetődéskor végbement folyamatot valószínűsítenek. Az anyaoldat lehetett az ekkor jelenlévő pórusvíz vagy hidrotermális fluidum. A törések poszt-szediment jellege, és breccsát cementáló kalcit meteorikus eredete alapján a dolomitosodási esemény a késő-jura és késő-kréta–paleogén között mehetett végbe.
Az utóbbi 20 év barlangkutatási eredményei a Budai-hegységben (különös tekintettel a Rózsadomb környékére)
Authors: Leél-őssy Szabolcs , Virág Magdolna
Published: April 2018

A Földtani Közlöny 125. 3-4. számában jelent meg összefoglaló a Budai-hegység barlangjairól (Leél-Őssy Sz. 1995). Az azóta eltelt időszakban (elsősorban a kutatási módszerek fejlődésének, és a megszaporodott hegyvidéki építkezéseknek köszönhetően) nemcsak új feltárások történtek (elsősorban a Rózsadomb térségében, ahol az 1995-ben ismert 30 km-es járathossz csaknem a duplájára, 55 km-re növekedett), hanem az itteni hipogén barlangok genetikájával, ásványvilágával kapcsolatban is számos új eredmény született. A keletkezéssel kapcsolatos új elméletek közül az elváltozott (kovás) zónákkal kapcsolatosakat, és a barlangot kioldó aszcendens termálvizek eredetével és keveredésével kapcsolatos új eredményeket kell kiemelnünk. Az akkor a Budai-hegységben ismert barlangi ásványfajok száma 15-ről 31-re emelkedett. Ebben az időszakban születtek az első konkrét eredményeket tartalmazó korhatározások is. Ezek közül több részben publikálásra került Mindszenty Andrea szerkesztette Budapest: Földtani értékek és az ember c. 2013-as könyvben. Az egész Budai-hegységben ma 239 barlangot ismerünk. Budapesten (a Pilishez tartozó Róka-hegyen lévőkkel együtt) 176 barlang található. A Rózsadomb térségében 102 barlangot kataszterizáltak az Országos Barlangnyilvántartásban. Az elmúlt 20 évben legfontosabb barlangfelfedezések a víz alatti Molnár János-barlangban, a Hideglyuk- és Harcsaszájú, valamint a Pál-völgyi-barlangban történtek: az utóbbi három barlang és a Mátyás-hegyi-barlang közötti összekötő járatok feltárásának köszönhetően, közel 31 km-es hosszával a Pál-völgyi-barlangrendszer lett Magyarország leghosszabb barlangja, megelőzve az Aggtelek-jósvafői Baradla-barlangot (beleértve a Baradla szlovákiai részét, a Domica-barlangot is). Nagy eredmény az eddig csak felszín közeli járatairól ismert Ferenc-hegyi-barlangban a Mélyszint megtalálása. Három új kisbarlang: a Citadella-kristálybarlang, a Királylaki-barlang és a József-hegyi 4. sz. barlang felfedezése pedig különösen értékes ásványkiválásai, ill. nagyon perspektivikus továbbkutatási lehetőségei miatt nagyon jelentős. Ezen kívül további 32 kisbarlangot találtak a kutatók az elmúlt 20 évben a Budai-hegységben, elsősorban a Rózsadomb térségében (1. ábra, 1. táblázat).
A gyermekbiblia-kutatás legjelentősebb eredményei
Authors: NÉMETH Dávid
Published: April 2018

The Most Significant Results of the Research on Children’s Bibles.
About twenty years ago, Children’s Bibles gained special attention in the field of Religious Education. Since then there has been active research in this field. The historical investigations have revealed a great amount of data unknown before. This study presents the case of the Hübner Bible in Hungary. There has been research concerning the theological and pedagogical aspects based on which the selection of the Biblical stories was made, research about the theological and didactical aspects of the narrative style and also the developmental psychological aptitude on the receiver side that has to be taken into consideration. The types of changes and distortions that differentiate the texts of the Children’s Bibles from the original are also discussed in the study. The quality and the function of the illustrations are also a subject of investigation. Here again the needs and the characteristics of the age group of the children who use the Children’s Bibles is a significant aspect.
Investigation of Electrohydraulic Drive Control System with the Haptic Joystick
Authors: Bachman Paweł , Milecki Andrzej
Published: April 2018

The term haptic is used to indicate the presence of force feedback from the manipulated object to the operator. One of the most commonly used haptic devices are joysticks. Such joysticks can be successfully applied also in communication with drive system, giving the human operator a feel of the output force. In the paper one axis joystick with force feedback used to control the electrohydraulic drive is proposed. In this joystick, a controlled brake with magnetorheological fluid and a small DC motor are applied. A beam with a strain gauge is used in a joystick arm, enabling the measurement of the force. In the joystick axis also a potentiometer is assembled, which measured the current arm position. In order to develop the control algorithms an electrohydraulic drive simulation and virtual model is worked out and then a haptic joystick is connected to it. The simulation results that have been obtained, enabled to design and test impedance and admittance control strategies for the system composed of haptic joystick and a real electrohydraulic drive. Finally the whole system is built, implemented and investigated in a laboratory environment. Investigations are conducted in conditions similar to real ones, in a situation where hydraulic piston touches an obstacle and the operator cannot observe this piston very accurately. Fifteen operators have been tested this way. The outcomes indicate that haptic control can improve the human feeling of forces between electrohydraulic drive and an obstacle and, thanks to this, the manual control is more accurate and safer.
Energy Recovery from a Non-Linear Electromagnetic System
Authors: Kęcik Krzysztof
Published: April 2018

The paper presents study of a pseudo-magnetic levitation system (pseudo-maglev) dedicated for energy harvesting. The idea rely on motion of a pseudo-levitating magnet in a coil’s terminal. The study based on real prototype harvester system, which in the pendulum dynamic vibration absorber is applied. For some parameters, the stability loss caused by the period doubling bifurcation is detected. The coexistence of two stable solutions, one of which is much better for energy harvesting is observed. The influence of the pseudo-maglev parameters on the recovered current and stability of the periodic solutions is presented in detail. The obtained results show, that the best energy recovery occurs for the high pseudo-maglev stiffness and close to the coil resistance. The amplitude’s excitation, the load resistances and the coupling coefficient strongly influence on the system’s response.
Crushing Behaviour of the PVC Foam Loaded with Beaters of Various Shapes
Authors: Bogusz Paweł , Gieleta Roman , Konarzewski Marcin , Stankiewicz Michał
Published: April 2018

Statistically, at least 50% of all injuries experienced by police officers in the line of duty are due to assaults with blunt objects. Therefore, vests used by the police should provide not only good ballistic resistance, but also good protection against such threats. Foamed materials are possible to be used for body protectors or inserts of protective clothes. The effects of dynamic impact with beaters of different shapes onto behaviour of polymeric foamed material were determined. There were used four types of beaters: flat, cylindrical, edgy and cornered. Strikes with blunt objects such as a flat board, baseball bat, edgy brick, pavement brick or a sharp stone, to which a protective ware can be subjected, were simulated. The impact load was applied to the rectangular specimens, made of polyvinyl chloride foam, with a usage of a drop hammer. Plots of force versus compression for all the tested samples were obtained and analysed. The effects of impacts with beaters of different shapes onto foamed material samples were presented. A shape of the blunt object significantly influences crushing behaviour of the foamed material. The impact energy of a flat beater is absorbed effectively on a short distance, since it is spread on a relatively large surface. The cylindrical and edgy beaters did not cause fragmentation of the samples, however, on the upper surfaces of the samples, permanent deformations mapping the beaters shapes as well as some cracks occurred. An impact with a sharp object, for example, a cornered beater is very difficult to be neutralized by the foam material, because it is cumulated on a small area.
Radiation-Stimulated Changes in the Characteristics of Surface-Barrier Al–Si–Bi Structures with Different Concentrations of Dislocations at the Crystal Surface
Authors: Pavlyk Bohdan , Kushlyk Markijan , Slobodzyan Dmytro , Matvijishyn Igor , Lys Roman , Jałbrzykowski Marek
Published: April 2018

We report the results of studies for the radiation-stimulated changes in electro-physical characteristics of surface-barrier Al–Si–Bi structures based on p-Si. We demonstrate that the X-ray irradiation is accompanied by different processes which depend on the density of the dislocations in the original silicon crystals. A usual evolution of the existing structural defects and their radiation-stimulated ordering dominate when the concentration remains low enough. Increase in the concentration causes the increasing role of generation of additional radiation defects. Modelling of the underlying physical processes has testified that the near-contact Si layers are strained. They act as getters for the structural defects and impurities.
Being Excellent Entrepreneurs in Highly Marginal Areas: The Case of the Agri-Food Sector in the Province of Reggio Calabria
Authors: Musolino Dario , Crea Vincenzo , Marcianò Claudio
Published: April 2018

The paper presents and discusses the findings of a field research study undertaken in a rural area in the province of Reggio Calabria, in Southern Italy, focused on firms belonging to the agri-food sector, in particular, on the excellent firms. Its objective is to point out how, even in rural and extremely marginal areas, and in unfavourable socio-economic and institutional contexts, it is possible that excellent firms were born and grew, and that they became competitive at the national and global scale. The paper therefore analyses these entrepreneurial case studies in-depth, using a methodologically mixed approach: on the one hand, focusing on their economic performance (quantitative analysis), and, on the other hand, investigating their strategy by means of direct open interviews. The paper concludes by providing “lessons” useful to understand how firms can not only survive, but also can be competitive and expand their business, even if they are located in extremely unfavourable peripheral contexts. This can be achieved by exploiting the strengths of these territories, which, even if few, they do not lack.
Goat Milk Kefir Supplemented with Porang Glucomannan Improves Lipid Profile and Haematological Parameter in Rat Fed High Fat and High Fructose Diet
Authors: Nurliyani  , Harmayani Eni , Sunarti
Published: April 2018

Background and Aims: Diet with a high fat and high sugar is associated with an increased incindence of the metabolic syndrome. Kefir has been known as a natural probiotic, while glucomannan from porang (Amorphophallus oncophyllus) tuber was demonstrated as prebiotic in vivo. Probiotics and prebiotics can be used adjuvant nutritional therapy for metabolic syndrome. The aim of this study was to evaluate the effect of goat milk kefir supplemented with porang glucomannan on the lipid profile and haematological parameters in rats fed with a high-fat/high-fructose (HFHF) diet.

Materials and methods: Rats were divided into 5 groups: normal diet; HFHF; HFHF + kefir; HFHF + kefir + glucomannan; and HFHF + simvastatin.

Results: There were significant differences before and after treatment in triglycerides and total cholesterol in HFHF + kefir+glucomannan group. The HFHF rats administered kefir with or without glucomannan had higher levels of lymphocytes and lower neutrophils compared to HFHF group (p<0.05). Only goat milk kefir without glucomannan proved to reduce platelets number.

Conclusion: Goat milk kefir supplemented with porang glucomannan could improve the health of rats fed high-fat/high-fructose, by decreasing plasma triglycerides, total cholesterol, and their immunomodulatory effect by decreasing number of neutrophils and increasing the lymphocytes. Especially for goat milk kefir had antithrombotic activity which important to prevent cardiovascular diseases.
Nocturnal Hypoglycemia in Type 2 Diabetes
Authors: Clus Simona , Crețeanu Gabriela , Popa Amorin
Published: April 2018

Background and aims: It is known that the majority of critical unacknowledged hypoglycemia has an increased incidence in patients with type 1 diabetes (T1DM) with a long evolution. The aim of this research is to evaluate the variability of glucose level and hypoglycemic events in patients with type 2 diabetes (T2DM) having pharmacological interventions with hypoglycemic risk. These events are sometimes asymptomatic also in T2DM: frequently in elderly, patients with autonomic neuropathy, or having a long evolution of disease.

Material and method: This analysis includes 72 patients with T2DM, with a relative good metabolic control, and possible glucose fluctuations. Glucose variability was appreciated using continuous glucose monitoring systems (CGMS) used for more than 72 hours in hospital or ambulatory setting.

Results: The incidence, duration and severity of hypoglycemia are not correlated with HbA1c value, age, disease duration or treatment. Approximately a quarter of patients had nocturnal hypoglycemia and in 37,5% of events hypoglycemia was prolonged, more 45 minutes. Clinical manifestations in diurnal hypoglycemia were presents in only 40% of the recorded events.

Conclusions: The study suggested that CGMS is beneficial for patients with type 2 diabetes, with hypoglycemic risk and complications, to adjusted medication, education and prevention the cardiovascular events.
The Relation Between Metabolic Syndrome and Testosterone Level
Authors: Goel Prashant , Popa Amorin R.
Published: April 2018

Metabolic syndrome is a group of conditions that increases the risk of developing diabetes and cardiovascular diseases. The most important pathogenic factors for metabolic syndrome are insulin resistance and obesity. The clinical presentation of this syndrome results from its influence on glucose and fat metabolism. Testosterone deficiency has a prevalence of up to 50% in men with metabolic syndrome and type 2 diabetes mellitus. A low level of testosterone is a factor for cardiovascular diseases and predictor of metabolic syndrome and, on the other hand, the components of metabolic syndrome can lead to low testosterone. This article reveals the bidirectional link between low testosterone level or hypogonadism and metabolic syndrome.
Improving the Long-Term Sustainability of Service-Learning Projects: Six Lessons Learned from Early MIT IDEAS Competition Winners
Authors: Jue Diana
Published: April 2018

An ongoing concern of service-learning projects is whether they can benefit target populations in the long-term. Too often, service-learning projects end before a real deliverable is presented to the community. At MIT, a short history of service-learning projects can be documented through the IDEAS Competition, an annual competition that awards small monetary prizes to student teams that have designed and implemented innovative projects to positively impact underserved communities. This article analyzes how winning projects of the first five IDEAS Competitions evolved or dissolved. From the experiences and wisdom of these early winners, this article offers six pieces of advice to students and academic institutions seeking to implement service-learning projects: 1) Seriously consider implementation from the beginning, 2) Be concrete and realistic in the short term, 3) Be flexible in the long-term, 4) Build a multidisciplinary team, 5) Collaborate with a solid community partner, and 6) Prepare for continuity.
Assessment of sleep in pediatric cancer patients
Authors: İnce Dilek , Demirağ Bengü , Karapınar Tuba Hilkay , Oymak Yeşim , Ay Yılmaz , Kaygusuz Arife , Töret Ersin , Vergin Canan
Published: April 2018

The purpose of the study is to describe sleep habits, assess the prevalence of sleep disturbances in pediatric cancer patients and healthy controls, and to compare sleep patterns, sleep problems. One hundred-thirty-five patients and 190 healthy controls were evaluated. Healthy children matched for age, sex, economic status, parental education and family structure constituted the control group. Sleep was evaluated by using the Children`s Sleep Habits Questionnaire (CSHQ). Sleep problems were detected in half of patients. There were no significant differences in total sleep score and subscale scores between patients and controls. Solely the wake-time was found significantly different between patients and controls. Although our results indicated that neither childhood cancer survivors nor patients with cancer during treatment period had more sleep problems than their healthy peers, sleep problems were not uncommon in whole study group. This study underlines the need to screen, assess and manage sleep problems in children with diagnosis of cancer.
Evaluation of antimicrobial susceptibilities and virulence factors of Staphylococcus aureus strains isolated from community-acquired and health-care associated pediatric infections
Authors: Karbuz Adem , Karahan Zeynep Ceren , Aldemir-Kocabaş Bilge , Tekeli Alper , Özdemir Halil , Güriz Haluk , Gökdemir Refik , İnce Erdal , Çiftçi Ergin
Published: April 2018

The aim of this study was to investigate the enterotoxins and Panton-Valentine leukocidin (PVL) gene as virulence factor, identification if antimicrobial sensitivity patterns, agr (accessory gene regulator) types and sequence types and in resistant cases to obtain SCCmec (staphylococcal cassette chromosome mec) gene types which will be helpful to decide empirical therapy and future health politics for S. aureus species. Total of 150 isolates of S. aureus were isolated from the cultures of the child patients in January 2011 and December 2012. In this study, the penicillin resistance was observed as 93.8%. PVL and mecA was detected positive in 8.7% and in 6% of all S. aureus strains, respectively. Two MRSA (methicillin resistant S.aureus) strains were detected as SCCmec type III and SCCmec type V and five MRSA strains were detected as SCCmec type IV. SET-I and SET-G were the most common detected enterotoxins. In both community-associated and healthcare-associated MRSA strains, agr type 1 was detected most commonly. The most common sequence types were ST737 in 13 patients than ST22 in eight patients and ST121 in six patients. This study highlights a necessity to review the cause of small changes in the structural genes in order to determine whether it is a cause or outcome; community-acquired and healthcare associated strains overlap.
Clinical and epidemiological characteristics of children with germ cell tumors: A single center experience in a developing country
Authors: İncesoy-Özdemir Sonay , Ertem Ulya , Şahin Gürses , Bozkurt Ceyhun , Yüksek Nazmiye , Ören Ayşe Ceyda , Balkaya Eda , Alkan Afra
Published: April 2018

Germ cell tumor (GCT) is a rare malignancy accounting for 2-3% of all pediatric tumors. The overall survival rate of children and adolescents with GCT is more than 80% after adopting combined therapy. The aim of this study is to review clinical presentation, management, and outcome in a single-center series with extracranial GCT. Clinical characteristics, pathologic presentations, and survival outcomes of 101 children with GCT, treated at our hospital from 1988 to 2011, were analyzed. Sixty-two of patients were female and 39 of them were male. Fifty-eight (57%) patients had gonadal tumor (24 testicular, 34 ovarian), 43 (43%) extragonadal. Histologically, teratomas were found most frequently (26 mature, 10 immature), followed by yolk sac tumors (n: 33), mixed malignant tumors (n: 13), embryonal carcinoma (n: 10), disgerminoma (n: 8) and seminoma (n: 1). Twenty-six patients were diagnosed as mature teratoma and we excluded them in the evaluation of staging and survival. Five-year overall and relaps-free survival were 80.3% (mean follow-up time: 215.8 months) and 73.4% (mean follow-up time: 176.2 months), respectively. Five-year survival rates were 93.2% and 90.2% in malign GCTs diagnosed after 1999.
Two cases of periodic fever syndrome with coexistent mevalonate kinase and Mediterranean fever gene mutations
Authors: Çakan Mustafa , Aktay-Ayaz Nuray , Keskindemirci Gonca , Karadağ Şerife Gül
Published: April 2018

The periodic fever syndromes are autoinflammatory diseases that present with recurrent fever, serositis and rash. Familial Mediterranean fever is the most common periodic fever syndrome and characterized by recurrent attacks of fever, arthritis, peritonitis, pleuritis that typically last 1-3 days. Hyperimmunoglobulinemia D syndrome is another example of periodic fever syndromes and patients have recurrent fever attacks for 3-7 days accompanied by abdominal pain, rash, vomiting, diarrhea, arthralgia, arthritis, aphthous ulcers, and cervical lymphadenopathy. In some cases the clinical picture of the patient does not fit to one autoinflammatory syndrome because of the digenic inheritance. This may cause to overlap or atypical clinical features or an unexpected response to treatment. Herein we report two cases of hyperimmunoglobulinemia D syndrome that also had MEFV gene mutations and familial Mediterranean fever phenotype.
The role of plasmapheresis in organophosphate poisoning: Case reports of three pediatric patients
Authors: Yükselmiş Ufuk , Özçetin Mustafa , Çağ Yakup , Yıldızdaş Dinçer , Yılmaz Hayri Levent
Published: April 2018

The aim of the study was to assess the impact of plasmapheresis treatment in the management of three pediatric patients with organophosphate poisoning who did not respond to standard treatment. The treatment of signs and symptoms, and supportive treatment has been evaluated in this paper. Patients were initially given atropine infusion and 0.05 mg/kg atropine with five-minute intervals. Despite pralidoxime loading and three consecutively infusions clinical symptoms did not respond to the treatment and plasma pseudocholinesterase levels did not decrease. At this point, plasmapheresis was used on three consecutive days. Accordingly, the clinical signs improved and mechanical ventilation was no longer necessary. Patients were discharged on the sixteenth day after their admission to the hospital. Plasmapheresis may be an option for the patients who do not respond to atropine and pralidoxime treatment in organophosphate poisoning.
Revisión crítica de las principales teorías que tratan de explicar la migración
Authors: García Sánchez Alberto
Published: April 2018

A continuación vamos a proceder a realizar una revisión crítica de las principales teorías que tratan de explicar las causas de los movimientos migratorios. Entre ellas hay algunas proposiciones teóricas que ponen el énfasis en lo económico, mientras que otras buscan explicación en fenómenos sociales y culturales. Se puede decir que todas ellas tienen algo de cierto, por lo que resulta esencial para los investigadores de la migración el conocerlas todas y saber sus diferencias. In the following pages we will conduct a critical review of the main theories that attempt to explain the causes of migration. Among them, there are some theoretical propositions that emphasise economic factors, while others seek explanation in social and cultural phenomena. All of them have some truth, so it may be useful for migration researchers to know them.
El conocimiento del italiano: requisito para obtener el Permiso de Residencia de larga duración CE. El caso de la comunidad filipina de Mesina (Italia)
Authors: Cama Maria
Published: April 2018

La finalidad principal de este texto es profundizar en la legislación italiana que ha subordinado la expedición de los permisos de residencia de larga duración a la superación de pruebas lingüísticas obligatorias para personas con nacionalidad extranjera. El tema es sin duda crucial por su influencia en la vida de muchas personas inmigrantes que han visto como se añadía una condición adicional para poder residir en Italia: el permiso por créditos. Para ello se consideran los dos más recientes avances legislativos: el Decreto Ministerial del 4 de junio de 2010 y el Acuerdo de Integración, establecido por el Decreto del Presidente de la República n.º 179 del 14 de septiembre de 2011. El propósito es: a) describir el contenido de los textos legislativos que introducen estas obligaciones y algunos aspectos relacionados con las mismas, como la organización del examen y el requisito de asistir a cursos de formación cívica; b) comparar opiniones de autores contrarios y favorables a las medidas; y c) dar voz a los mismos actores involucrados al fin de entender sus dificultades y sus propias impresiones. El análisis de los textos y las informaciones producidas, a través de entrevistas a personas filipinas que han hecho el examen de idioma, ponen de manifiesto los límites de una reforma a través de la cual el gobierno italiano pretende aplicar su política pública de inmigración e integración. The main purpose of this essay is to know more about Italian legislation that strongly subordinates the issue of long-term residence permits to mandatory language testing for people with foreign nationality. That is a crucial issue because of its influence in the daily life of many newcomers, which are subject to an additional condition, if they want to live in Italy: the residence permit connected to credits. The focus will primarily be on the two most recent legislative measures: the Ministerial Decree of 4 June 2010 and the Integration Agreement, introduced by Presidential Decree no. 179 of 14 September 2011. The text is intended: a) to consider the introduction of these obligations and certain related issues, -such as the organisation of the examination and the obligation for the newcomers to attend civic integration courses; b) to present favorable and contrary opinions; c) to give voice to the involved parties in order to understand their troubles and impressions. The analysis of the texts and the information produced by some interviews with people from the Philippines, obliged to do the language tests, show the limit of the migration and integration public policy of the Italian government.
Amharic Oral Poems and Songs as Sources for Reconstructing a History of Shewa, Ethiopia (1703â€“1889)
Authors: Demisie Dechasa Abebe
Published: April 2018

The church and state institutions in the history of Ethiopia were considered literate. However, the majority of Ethiopians in general and Shewans in particular were non-literate. Moreover, peoples who were in the service of both the church and the state had no interest to record the day-to-day incidents in written form. These incidents were mainly maintained and transmitted from generation to generation orally by individuals who performed poems and songs. Thus, the main objective of this article is to explain how the daily political and socio-economic experiences of Shewa were preserved orally. It also attempts to analyse to what extent these experiences are reliable sources to reconstruct a history of the region (1703â€“1889). The oral poems and songs were collected from Amharic oral informants, books and manuscripts that were contributed by amateur historians.
Kindheartedness Invites Betrayal: Oral Testimony Regarding the Land Dispute between Two Village Heads in Gutu District, Zimbabwe
Authors: Wutete Obert
Published: April 2018

Like capital and labour, land is a prized resource, and where the land is inherited from oneâ€™s predecessors, it is held with reverence and is of particular significance to its inheritors. A situation involving land lies at the heart of a dispute between two village heads in Gutu district, Zimbabwe, the account of which is based on oral testimonies given by elderly members of the village which offered temporary shelter to a group of land seekers. The events recounted occurred during the late 1950s and early 1960s. Data was gathered through oral interviews and focus group discussions, supported by observations. Detailed interviews were conducted with the aggrieved village head as well as the former and current chief. Other elderly village members were also interviewed, and some were involved in the group discussions. The study revealed among other things the absence of tangible records pertaining to village boundaries, the lack of authority of the chiefâ€™s rulings, and the prevalence of corruption in the settlement of land disputes. Some focused deductions are made regarding possible outcomes of a pending court verdict. A number of recommendations are suggested with the aim of assisting in the resolution of similar land disputes in Zimbabwe