bluuebunny/crossref_metadata_2025 huggingface dataset:
Terahertz nonlinear index extraction via full-phase analysis
Authors: Garriga Francis Kareem J. , Lim Pac Chong Mervin , E Yiwen , Zhang X.-C.
Published: August 2020

We experimentally show the spectrally averaged nonlinear refractive
index and absorption coefficient for liquid water, water vapor,

α

-pinene, and Si using a full-phase
analysis in the terahertz regime through a standard time-domain
spectrometer. Our results confirm that the nonlinear index of
refraction of the liquid samples in this regime exceeds the
near-infrared optical nonlinear index by six orders of magnitude. In
the case of liquid water and water vapor at atmospheric pressure, we
find a nonlinear index of

7.8

×

10

−
10

c
m

2

/

W

and

6

×

10

−
11

c
m

2

/

W

, respectively, which are both much
larger than expected.
Helical distributed feedback fiber Bragg gratings and rocking filters in a 3D printed preform-drawn fiber
Authors: Canning John , Wang Yitao , Lancry Matthieu , Luo Yanhua , Peng Gang-Ding
Published: August 2020

Using induced UV attenuation across a twisted fiber asymmetric core drawn from a 3D printed preform, linear fiber Bragg gratings (FBGs) are produced on one side of the core. By removing the twist, a helical grating with a period matching the twist rate is produced. Balancing the rate with the polarization beat length in a form birefringent fiber allows the production of a combined rocking filter and FBG device with tunable properties. Direct observation of the fiber grating dispersion within the rocking filter rejection band is possible.
Efficient interrogation method of forward Brillouin scattering in optical fibers using a narrow bandwidth long-period grating
Authors: Sánchez L. A. , Díez A. , Cruz J. L. , Andrés M. V.
Published: August 2020

A new technique, to the best of our knowledge, for the characterization of the effective refractive index modulation in optical fibers due to transverse acoustic mode resonances excited by electrostriction is reported. The resonances excited by an optical pulse are probed by a narrow bandwidth long-period grating (LPG) inscribed in the fiber, which is interrogated by a continuous wave (CW) beam. The LPG used in this experiment has a narrow bandwidth and high sensitivity to small mode index perturbations, allowing the measurement of index variations from below

10

−
9

to

10

−
6

. Radial and torsional-radial acoustic modes were characterized up to 1.1 GHz. The linewidth of resonances was found to be much shorter than in previous reports in which long fiber lengths are typically required, obtaining Q factors as high as 5000.
Dispersion-limited versus power-limited terahertz communication links using solid core subwavelength dielectric fibers
Authors: Nallappan Kathirvel , Cao Yang , Xu Guofu , Guerboukha Hichem , Nerguizian Chahé , Skorobogatiy Maksim
Published: August 2020

Terahertz (THz) band (0.1–10 THz) is the next frontier for ultra-high-speed communication systems. Currently, most of communications research in this spectral range is focused on wireless systems, while waveguide/fiber-based links have been less explored. Although free space communications have several advantages such as convenience in mobility for the end user, as well as easier multi-device interconnectivity in simple environments, fiber-based communications provide superior performance in certain short-range communication applications such as multi-device connectivity in complex geometrical environments (ex., intra-vehicle connectivity) and secure communications with low probability of eavesdropping, as well as secure signal delivery to hard-to-reach or highly protected environments. In this work, we present an in-depth experimental and numerical study of the short-range THz communications links that use subwavelength dielectric fibers for information transmission and define the main challenges and trade-offs in the link implementation. Particularly, we use air or foam-cladded polypropylene-core subwavelength dielectric THz fibers of various diameters (0.57–1.75 mm) to study link performance as a function of the link length of up to

∼
10
  
m

, and data bit rates of up to 6 Gbps at the carrier frequency of 128 GHz (2.34 mm wavelength). We find that depending on the fiber diameter, the quality of the transmitted signal is mostly limited either by the modal propagation loss or by the fiber velocity dispersion (GVD). An error-free transmission over 10 m is achieved for the bit rate of 4 Gbps using the fiber of smaller 0.57 mm diameter. Furthermore, since the fields of subwavelength fibers are weakly confined and extend deep into the air cladding, we study the modal field extent outside of the fiber core, as well as fiber bending loss. Finally, the power budget of the rod-in-air subwavelength THz fiber-based links is compared to that of free space communication links, and we demonstrate that fiber links offer an excellent solution for various short-range applications.
Ciência da Informação: visões e tendências
Authors: Marques Maria Beatriz
Published: August 2020

Ciência da Informação: visões e tendências reúne um leque diversificado de olhares e de vozes sobre a Ciência da Informação. Docentes e investigadores de universidades de cinco países, Portugal, Brasil, Espanha, Alemanha e México exploram e problematizam as origens, a evolução, os fundamentos teóricos e epistemológicos da área científica, enquanto ciência pura (visões – diferentes enfoques / perspetivas) e aplicada (tendências – o que vai sendo seguido, ganhando corpo e materialidade). No seu conjunto, esses contributos alimentam o vital debate sobre o impacto das alterações sociais e tecnológicas no conceito de informação, no ensino e investigação em Ciência da Informação, e no importante papel da informação nas sociedades democráticas.
Hepatic Abscess: A Rare Presentation of Sump Syndrome After Choledochojejunostomy
Authors: Kim Hyaehwan , Triplett Drew , Kauffman Shannon , Beck Gregory
Published: August 2020

Sump syndrome is a rare complication of choledochoenterotomy. Patients with sump syndrome often have abdominal pain, recurrent cholangitis, pancreatitis, malabsorption, fever, an abnormal liver function test, and, rarely, hepatic abscess. Roux-en-Y choledochojejunostomy or hepaticojejunostomy has been advocated to prevent sump syndrome. We report an 80-year-old man who presented with a hepatic abscess secondary to sump syndrome 26 years after a Roux-en-Y choledochojejunostomy for recurrent cholangitis. Sump syndrome should be considered for patients who underwent biliary diversion surgery, regardless of the type of procedure or time from surgery.
Perfil de tutores de cães e gatos sobre as zoonoses no município de Patos de Minas – MG
Authors: Alves Rodrigues Iara Maria , Luiz Denis Prudencio , Cunha Guilherme Nascimento
Published: August 2020

O vínculo afetivo entre o homem e os animais está cada vez mais forte. Porém, os cães e gatos exigem certos cuidados, que quando não são praticados acarretam problemas a saúde pública. O estudo teve como objetivo avaliar o perfil de tutores de cães e gatos acerca das zoonoses no município de Patos de Minas-MG. O mesmo foi realizado através de um questionário aplicado em forma de entrevista no período de julho a agosto de 2016. Ao todo, 300 tutores foram entrevistados, de forma individual. O trabalho foi realizado em seis bairros distintos e de diferentes classes sociais da cidade. Para o tratamento dos dados coletados foi utilizada análise estatística descritiva com o auxílio do software BioEstat versão 5.3. Sobre zoonoses, 78,66% (236/300) dos tutores relataram ter conhecimento de que os animais podem transmitir doenças ao homem, sendo raiva a mais citada com 33% (184/300). No que diz respeito como as zoonoses podem ser transmitidas ao homem, por volta de 13% (39/300) não souberam responder. Concluiu-se que apesar da população entender que os animais podem transmitir doenças ao homem, muitas pessoas carecem de conhecimentos relevantes, refletindo na carência de informações que lhes é fornecida. Evidencia-se então, o desafio para os órgãos públicos responsáveis e aos Médicos Veterinários, no sentido de informar e educar os tutores quanto as zoonoses e suas reais implicações
Optimization of k value and lag parameter of k-nearest neighbor algorithm on the prediction of hotel occupancy rates
Authors: Akbar Agus Subhan , Kusumodestoni R. Hadapiningradja
Published: August 2020

Hotel occupancy rates are the most important factor in hotel business management. Prediction of the rates for the next few months determines the manager's decision to arrange and provide all the needed facilities. This study performs the optimization of lag parameters and k values of the k-Nearest Neighbor algorithm on hotel occupancy history data. Historical data were arranged in the form of supervised training data, with the number of columns per row according to the lag parameter and the number of prediction targets. The kNN algorithm was applied using 10-fold cross-validation and k-value variations from 1-30. The optimal lag was obtained at intervals of 14-17 and the optimal k at intervals of 5-13 to predict occupancy rates of 1, 3, 6, 9, and 12 months later. The obtained k-value does not follow the rule at the square root of the number of sample data.
Negocjowanie programu nauczania języka obcego z uczniami w Polsce
Authors: Sobkowiak Paweł
Published: August 2020

This paper aims to explore the rationale of classroom negotiation - understood as a discussion between all participants in the teaching/learning process to decide on the organization of foreign language learning and teaching. It outlines relevant issues connected with the process syllabus and the benefits that can be expected from involving students in classroom decision making. The article presents results of research conducted in Polish schools among both students and teachers at different levels of education in order to see to what extent the foreign language syllabus is negotiated there.
Dyskurs edukacyjny w kształceniu przyszłych nauczycieli
Authors: Wiesława Burlińska Wiesława Burlińska
Published: August 2020

In the training of future foreign language teachers discourse appears mainly in its theoretical dimension in relation to text discourse connected with teaching various skills. Discourse, however, might be also useful in the context of Teaching Practice. On the one hand, the analysis of classroom discourse could be used in deeper formative evaluation of the trainee. Analysis of this evaluational dialogue could support not only the growth of teaching strategies but could also significantly contribute to the formation of a reflective attitude of the future teacher.In this paper I present an analysis of a feedback session which refers to a lesson conducted by a teacher trainee form Bydgoszcz Teacher Training College of Foreign Languages and answer the question how useful this element can be in the creation of the reflective practitioner’s attitude.
Narzędzia web 2.0 w codziennej pracy nauczyciela języków obcych
Authors: Górska Weronika
Published: August 2020

This article presents the possibility of using online resources with special regard to web 2.0. Using the example of given project carried out in the language school on students taking part in a one-year (120h) language course, the author shows how New Technologies can be used for the development of the students’ skills. In conclusion the author presents some implications of the project, worth considering by teachers.

“Technologia sama w sobie nie zmieni edukacji, liczy, się to jak jest użyta.”J. Haymore Sandholtz, C. Ringstaff, D. C. Dwyer Teachers College Press (1997: 10)
Podręcznik w nauczaniu języka obcego. Wnioski z analizy wybranych podręczników do nauki języka niemieckiego.
Authors: Zenderowska-Korpus Grażyna
Published: August 2020

The aim of the article is to present textbooks for learning German as a foreign language that have been approved for school use by the Ministry of Education. The first part deals with different criteria for evaluation of textbooks and didactic materials. Additionally, it provides the Ministry of Education textbook suitability requirements. The second part presents the end results of an analysis which involved textbooks for learning German. It also contains a summary of questionnaires conducted among students and teachers. The summing-up offers reflections and conclusions concerning the features of an optimal textbook for learning a foreign language.
Sprawozdania i komunikaty
Authors: . .
Published: August 2020

.
Rozwijanie refleksyjności nauczycieli języków obcych na przykładzie techniki analizy zdarzeń krytycznych. Studium przypadku
Authors: Kiliańska-Przybyło Grażyna
Published: August 2020

The article aims at presenting the technique of critical incidents analysis as a tool to promote reflectivity among inexperienced foreign language teachers. Critical incidents, often used in social and educational studies, are defined as meaningful and important situations (both positive and negative) that trigger individual’s reflection and help him/her realize his/her beliefs and practices. The article provides characteristics of the technique of critical incidents analysis. Data gathered from inexperienced student teachers (n= 30) indicate strong emotional involvement of the subjects in the study . Their descriptions of critical incidents concentrated mostly on negative situations resulting from their lack of experience with classroom routines, low self-confidence and feelings of inadequacy.„Nauczanie to uczestniczenie w powodzi zdarzeń”(Tripp 1993; Kwiatkowska 2008: 173)
Raport werbalny i jego wykorzystanie w badaniach nad strategiami rozwiązywania testów z zakresu czytania
Authors: Konieczna Anna
Published: August 2020

The article discusses kinds of verbal reports and their characteristic features. More specifically, it focuses on: a) the validity of particular types of verbal reports and the data these are likely to provide, b) a quite difficult distinction between introspection and retrospection in researching reading, and c) the characteristic features and limitations of think-aloud protocols (categorized as introspective verbal report), especially if used to investigate the concrete reading format of gapped-text.
Zalety stosowania połączonych metod badawcz ych w analizie interakcji na lekcjach jęz yka obcego
Authors: Łęska Krystyna
Published: August 2020

Numerous studies conducted during language lessons aim at gaining more knowledge about classroom interaction and its relationship with the learning and teaching processes. Early research concerning classroom interaction involved quantitative methodology and was based on some predetermined sets of categories used for coding specific classroom behaviours. However, such an analysis is not sufficient since it does take into consideration whole stretches of the context in which the utterance is produced and does not allow judgements connected with the classroom atmosphere to be made. One way of dealing with these problems is to employ qualitative methods. Recently, there is another tendency in research methodologies, namely, to use a combination of quantitative and qualitative studies (mixed methods research). The article presents an example of an interaction analysis conducted in foreign language classrooms with the help of mixed methods research, which allowed a better understanding of the phenomena that take place during a foreign language lesson.
Metody i narzędzia badawcze w studiach nad rozwojem jęz yka obcego u małych dzieci
Authors: Rokita-Jaśkow Joanna
Published: August 2020

This paper aims to present an overview of the most typical methods and tools used in studies of young children learning foreign languages. Two major groups of potential subjects have been distinguished and characterized: children learning L2 from the age of (0) 1 till 3 and from the age of 3 till 6. In the studies in the first group methods similar to studies of L1 are suggested: longitudinal case studies using observation diaries, audio- video recordings, interviews with parents, and vocabulary checklists for cross-sectional research. In the studies of older children (3-6) elicitation of language data during testing sessions is possible and recommended, for which the tools most frequently used are: imitation of a speaker, carrying out orders and using picture prompts.
Kilka uwag na temat metodologii badań prowadzonych wśród osób w wieku senioralnym
Authors: Jaroszewska Anna
Published: August 2020

The purpose of the article is to draw attention to the specific nature of pedagogical research carried out in research groups represented by people in late adulthood. On the basis of the characteristics of the last stage of a person’s development, the author attempts to indicate such research methods and techniques and such an approach to them as will enable the optimization of broadly understood research upon the process of foreign language learning by elderly people.
Typologia psychologiczna Carla Gustawa Junga a glottodydaktyka
Authors: Wojtynek-Musik Krystyna
Published: August 2020

According to C.G. Jung, people, including teachers and students, can be divided into four personality types, depending on the dominating psychological function. These functions are thinking, feeling, sensation and intuition which can be further subdivided into introverts and extraverts. The awareness of this psychological diversity may spare teachers and their students a great number of disappointments and misunderstandings and may also help them to create their own style of learning and working on the second language.
Atuação do psicólogo na saúde mental da população diante da pandemia / Psychologist performance in the mental health of the population in the face of the pandemic
Authors: Danzmann Pâmela Schultz , Da Silva Ana Cláudia Pinto , Guazina Félix Miguel Nascimento
Published: August 2020

Objetivo: identificar na literatura mundial a atuação do psicólogo na saúde mental da população diante da pandemia ocasionada pelo Coronavírus. Método: revisão integrativa da literatura, realizada conforme os descritores Pandemias, Saúde Mental e Medicina do comportamento, nas plataformas Google Scholar, PepsiCo e Portal Coordenação de Aperfeiçoamento de Pessoal de Nível Superior. A amostra foi composta por 17 estudos. Resultados: o Coronavírus está produzindo sofrimentos psicológicos aos sujeitos, sendo assim os psicólogos tiveram que buscar por novas formas de realizar as intervenções psicoterapêuticas. Alguns deles são as consultas online e a manutenção do serviço de saúde com os atendimentos psicológicos hospitalares. Ambos serviços se fazem essenciais diante do enfrentamento ao novo Coronavírus. Conclusões: há limitações e desafios enfrentados pela área da Psicologia, devido às fragilidades e despreparo dos profissionais, por ser uma situação nova e imprevisível.
História Oral: reflexões sobre aplicações e implicações
Authors: Castelo Branco Samantha
Published: August 2020

Nas diferentes áreas do conhecimento, pesquisadores dispõem de variadas opções metodológicas para realizar suas investigações. A História Oral (HO) emerge como possibilidade metodológica em meados do século XX e, no caso brasileiro, vem sendo utilizada em estudos científicos desde a década de 1970. Diretamente associada à noção de memória, esse método se apoia em testemunhos e depoimentos orais, possibilitando a manifestação de fontes normalmente excluídas dos relatos oficiais. Nesse sentido, este artigo objetiva abordar a HO como opção metodológica, bem como refletir sobre suas aplicações e implicações, além de problematizar aspectos éticos e técnicos relacionados a essa metodologia. Recorrendo-se à pesquisa bibliográfica, a partir de autores como Alberti (1990, 2005), Joutard (1999; 2006), Meihy (1998; 2006), Portelli (2001; 2016) e Thompson (2002), expõe-se, ainda, orientações que podem ser adotadas pelos pesquisadores nas fases de planejamento, coleta e análise dos depoimentos, de modo que o entrevistador prime pelo seu papel dialógico e possa conferir, à produção de conhecimento, riqueza e profundidade.
MEMORIA Y TESTIMONIOS: uso de testimonios orales en los Museos de la Memoria del Cono Sur Americano
Authors: Gonzalez Ana Maria Sosa
Published: August 2020

El presente artículo se propone abordar la relación entre la producción de testimonios orales (de experiencias vinculadas a la violencia de Estado ocurrida en las últimas dictaduras de la región, en especial aquellos testimonios que forman parte de causas jurídicas abiertas o en proceso) y su puesta a conocimiento público a través de los museos de memoria. El frecuente uso de testimonios de los directamente involucrados en los hechos y/o historias relacionados a un pasado reciente y traumático ha sido una herramienta muy utilizada en los museos de memoria, memoriales y sitios de consciencia de América y del mundo. En el caso del Centro Cultural Museo de la Memoria - MUME en Uruguay y del Espacio Memoria y Derechos Humanos (ex ESMA) en Argentina, ha sido un recurso que se ha fortalecido con la participación de los propios protagonistas en diversas instancias propuestas por estas instituciones, ya sea guiando a grupos durante las visitas didácticas a estudiantes, ya sea participando en talleres y diversas actividades culturales que estos centros promueven. Este recurso sensibilizador permite la toma de consciencia del visitante logrando así una mayor comprensión no sólo del período en cuestión sino de los procesos de conformación de la memoria y su dinámica e historicidad (sus diferencias y conflictos); con ello se estimula otro tipo de participación por parte del visitante, aportando a un proceso de construcción ciudadana, dentro de las que forma parte las propuestas pedagógicas de estas instituciones y de las políticas públicas de memoria que reivindican diferentes grupos sociales.
A ENTREVISTA: UM OLHAR SOBRE A ESCUTA A PARTIR DE DUAS EXPERIÊNCIAS
Authors: Scribano Adrian , De Sena Angelica
Published: August 2020

Dentre os múltiplos procedimentos disponíveis nas Ciências Sociais para explicar reflexivamente a estruturação do social, existem estratégias qualitativas de indagação e, dentre delas, a entrevista. A entrevista, em suas diferentes modalidades, é um instrumento de observação e indagação científica utilizado com o objetivo de conhecer o(s) olhar(es), perspectiva(s) e o quadro referencial a partir do qual pessoas e atores organizam e compreendem seus entornos, e orientam seus comportamentos. Constitui uma modalidade de conversa que permite conhecer o que as pessoas sabem, acreditam e pensam, em relação à sua bio-grafia, ao sentido dos fatos, a sentimentos, opiniões, emoções, ações e valores. Para poder realizá-las é necessária a interação entre o/a entrevistador/a e o/a entrevistado/a, a fim de abrir caminho para a fala e a escuta. Este artigo tem como objetivo refletir sobre o ato da escuta na entrevista sociológica, a partir de nossas experiências como entrevistador e entrevistadora, ousando fazer algumas recomendações para sua realização.
DO ENCONTRO DAS ÁGUAS, A CRIAÇÃO DO LUGAR: UM ESTUDO SOBRE O PARQUE URBANO DA ORLA DO GUAÍBA
Authors: Farias Silvia , Pippi Luis Guilherme Aita , Dornéles Vanessa Goulart , Klebers Luan Da Silva
Published: August 2020

O trabalho permeia entre a história dos aterros do Lago Guaíba e a nova configuração cartográfica do município de Porto Alegre, capital do Rio Grande do Sul, até se tornar o novo ponto de encontro da cidade, parte dele o recentemente inaugurado Parque Urbano da Orla do Guaíba. O objetivo do artigo é, através do método de questionário de caráter quantitativo, entender a caracterização da mobilidade e do uso do espaço público e a caracterização dos usuários, com resultados referentes a tipos de modais de utilização ao encontro do parque e no interior do parque, distâncias percorridas, tempo de permanência entre outros. O resultado mais prevalente do questionário possibilitou o entendimento do tipo de modal e deslocamento dos usuários tanto no parque, como no trajeto de suas residências e/ou local de trabalho até o parque, resultando em um artigo de caminhografia urbana enquanto ação e não como prática propriamente dita.Palavras-chave: parque urbano, orla do Guaíba, caminhabilidade, usos, períodos
ANÁLISE DE INTERAÇÃO COM O USUÁRIO DA PISTA MULTIUSO DA UNIVERSIDADE FEDERAL DE SANTA MARIA
Authors: Oliveira Aline Machado , Lima Echilly Macena , Preissler Anna Laura , Franz Cristiane Gisele , Pippi Luis Guilherme Aita , Dorneles Vanessa Goulart
Published: August 2020

Análise de interação com o usuário da Pista Multiuso da Universidade Federal de Santa Maria, avaliando sua ocupação utilizando a metodologia de análise pós-ocupação com avaliações qualitativas dos usuários. O projeto da Pista Multiuso foi elaborado em 2014, mesmo ano em que iniciaram as obras de execução. O Laboratório de Paisagem e Arquitetura da Universidade Federal de Santa Maria (PARQUI - UFSM) acompanha os resultados desde então, também elabora metodologias de análise pós-ocupação. Conforme aferido nas respostas dos usuários, esse equipamento é consolidado e valorizado dentro da universidade, pois traz dinâmica e fluidez na caminhabilidade interna do campus universitário, além do mais confere à UFSM um caráter de parque setorial, tornando-a um atrativo dentro do município. Cabe ressaltar também a importância em concluir as definições do projeto original, como os espaços de estar e a ampliação da pista, garantindo assim o efetivo atendimento da demanda dos usuários.Palavras-chave: pista multiuso, mobilidade, usuário, análise.
UMA BREVE INCURSÃO AO INTERACIONALISMO SIMBÓLICO NA CIDADE
Authors: Marcel Alves da Costa Wendell
Published: August 2020

O artigo apresenta uma discussão teórica sobre antropologia urbana e o interacionismo simbólico na cidade. Discuto sobre o conceito de sociedades complexas e a questão do patrimônio cultural e simbólico no contexto do urbanismo contemporâneo. O objetivo é realçar o fenômeno do urbanismo e seus espaços de representação para o desenvolvimento da interação simbólica na ordem do cotidiano. Destaco como os espaços públicos e fechados servem espacialmente para a representação social das pessoas pela prática da caminhografia urbana.Palavras-chave: Interacionismo simbólico, caminhadas, patrimônio cultural, cidade.
A ACESSIBILIDADE EMOCIONAL: RELATOS MEMORIAIS NO MUSEU VIVO DO SÃO BENTO
Authors: Leal Adriana Guilhermano , Calvão Cristina
Published: August 2020

Tendo em perspectiva o quadro do envelhecimento da população brasileira vemos que as demandas e perspectivas destes não se refletem na realidade espacial das cidades brasileiras tanto no campo físico, ao que se refere às questões de acessibilidade, bem como ao campo subjetivo. Neste sentido, este artigo propõe um debate ao que tange temas da acessibilidade emocional para fruição e participação social do idoso em percursos museais, estendendo estas percepções para uma escala urbana do bairro e até mesmo da cidade fluminense de Duque de Caxias, possibilitadas pelo estudo de caso do ecomuseu de percurso Museu Vivo do São Bento. Como forma de acessar as experiências subjetivas destes lugares, indicando possibilidades para uma acessibilidade plena do museu, foi utilizada a metodologia de percursos comentados proposta por Jean Paul Thibaud, pelo qual as autoras entendem ter acessado as ambiências sensíveis dos lugares do museu, e pela qual compartilharemos aqui nossas análises.Palavras-chave: idoso, acessibilidade emocional, ambiência, atmosfera, lugar.
MOBILIDADE URBANA E TERCEIRA IDADE
Authors: Garcia Amanda Ferreira , Portella Adriana
Published: August 2020

O transporte público coletivo possui uma importante função na mobilidade urbana, que é de dar acesso e permitir a mobilidade das pessoas às suas diversas atividades, exercendo, materialmente, o direito de ir e vir de cada cidadão. Sendo assim, se torna extremamente importante analisar as características ergonômicas dos veículos, a fim de garantir a acessibilidade a tais meios por todas pessoas. Frente a grande mudança demográfica que está ocorrendo mundialmente, com o envelhecimento global da população, sentiu-se a necessidade de abordar tal tema focado nas necessidades dos idosos. Através da aplicação de uma metodologia qualitativa (observações e entrevistas não estruturadas), buscou-se identificar e entender as dificuldades dos usuários e, posteriormente, propor soluções que poderão atender as reivindicações do público alvo. Diante disso, busca-se uma maior visibilidade para as situações enfrentadas no transporte público coletivo por um grande número de usuários idosos.Palavras-chave: transporte público, idosos, mobilidade urbana, acessibilidade.
PRODUÇÃO DE BIOGÁS A PARTIR DA CANA-DE-AÇÚCAR
Authors: Nadaleti Willian Cézar , Santos Renan De Freitas , Hepp Daniela Vellar , Vieira Bruno Müller , Leandro Diuliana
Published: August 2020

No âmbito das discussões sobre a questão energética, aprofundada pelo cenário internacional de incertezas relacionadas aos combustíveis fósseis, como sua possível escassez, surgem pesquisas e estudos técnicos, econômicos e de impactos ambientais voltados para o desenvolvimento de alternativas na produção de energia. A biomassa surge como uma opção viável, a qual pode ser convertida em eletricidade, biocombustível, carvão vegetal e produtos químicos. Neste sentido, o uso da biomassa de cana-de-açúcar na matriz energética brasileira, considerando sua ampla disponibilidade, auxilia na substituição dos combustíveis fósseis. A produção de biogás, através do processo de digestão anaeróbia, pode ser uma alternativa para o uso da cana-de-açúcar. O presente estudo busca, portanto, quantificar a produção de biogás a partir da cana-de-açúcar. Para a realização do experimento foram utilizados digestores produzidos com frascos contendo um volume total de 1,2 dm³. Como principal resultado, considerando-se a média da triplicata estudada, pôde-se alcançar uma produção de, aproximadamente, 1,83 dm3 de biogás com desvio padrão de 0,24 em um período de 168 horas, resultando em uma produção média de, aproximadamente, 0,01 dm3 de biogás por hora.
Genetic Parameters of Agronomic Traits in Sweetpotato Accessions
Authors: Rahajeng Wiwit , Restuono Joko , Indriani Febria Cahya , Purwono Purwono
Published: August 2020

Germplasm as a source of genes in sweetpotato breeding requires information on appearance and genetic parameters. The objectives of this research were to determine the performance and genetic parameters of sweet potato accessions. The research was conducted at Kendalpayak Research Station, Malang, East Java, Indonesia. The materials used were thirty sweet potato accessions from Indonesian Legumes and Tuber Crops Research Institute (ILETRI) germplasm collection. The research was arranged in a Randomized Block Design (RBD) with two replications. The variables observed included: the vines length, the weight of vines, the number and weight of the saleable root per plot, the number and weight of the non-saleable root per plot, the number and weight of root per plant, the root yield, the harvest index, and the dry matter content. The results of ANOVA showed a significant difference among the tested genotypes in almost all traits observed except on weight of non-saleable root. PCV estimation was higher than GCV estimation for all the observed characters. The weight of the saleable root per plot, the weight of root per plant, and the root yield that showed a wide range of PCV and GCV as well as high broad-sense heritability indicated that these traits had additive gene effect and more reliable for effective selection. The broad GCV in a population is effective for selection to obtain the superior variety.
Pyrolysis of Palm Kernel Shell to Chemicals by Using Bayah Natural Zeolites
Authors: Suhendi Endang , Naibaho Pipiet P.U. , Fauzan Eka R. , Kurniawan Teguh
Published: August 2020

Palm kernel shell (PKS) is one of the biomass with high potential that can be converted into chemicals. In this study, palm kernel shell (PKS) was converted by pyrolysis method to produce condensed liquid products, gas, and solid. The purpose of this study was to determine the effect of catalyst activation time on yields and characteristics of PKS waste pyrolysis products. The pyrolysis process was carried out at a temperature of 500oC. Based on the results obtained with the addition of catalysts at 7 hr of activation can reduce the yield of solid products by 1.5% wt and 9.01% wt of liquid and increase the yield of gas products by 10.51% wt. On the characteristics of solid product there is a decrease in volatile matter by 55.04% wt and an increase fixed carbon by 40.27% wt. The gas characteristics, the H2 and CO gas decreases by 5.43% v/v and 1.36% v/v and the increase in CH4 and CO2 gas by 1.07% v/v and 5.72% v/v. Characteristics of the liquid obtained an increase in the amount of acetic acid by 11.75% v/v and decrease phenol compounds by 13.08% v/v. The result liquid product can be applied as a chemical.
Refuse Derived Fuel Production through Biodrying Process (Case study: Solid Waste from Canteens)
Authors: Chaerul Mochammad , Fakhrunnisa Afifah
Published: August 2020

Due to its calorific value, wastes could be treated into Refuse Derived Fuel (RDF) through several processes. In order to get higher calorific value, moisture content in the wastes could be removed by utilizing the heat generated from decomposition of organic fraction by microorganism (biodrying process). The study aims to treat solid wastes generated from canteens in Ganesha Campus of Institut Teknologi Bandung into RDF through biodrying process. Through standard sampling procedure, total waste generated from 59 canteens was 228 kg/day and organic fraction became the dominant (74%). There were 3 biodrying piles prepared, namely aeration, windrow, and control pile. Temperature in all piles increased in first and second weeks, then it gradually decreased and the average temperature were between 23-48 oC. The heat generated during the process could be remove water content and the optimum time 17-22 days could reach 20-30% of moisture content. The highest calorific value could be obtained from aerated pile (14.98 MJ/kg). By considering several parameters, the best RDF were produced from aerated pile. The parameters which still did not comply with the international standard of RDF were ash content, fixed carbon, and organic carbon. The quality of RDF was affected significantly by the composition of the feed. Though it could not meet with all parameters as an international standard of RDF, the product could be used as co-fuel to substitute coal or other fossil fuels for industrial activities. By knowing that the wastes could be converted into valuable product, the local municipality may shift the conventional paradigm of the waste management which is only collect-haul-dispose into a new paradigm by prioritizing waste recycle.
Kajian Filologis Kajian Flologis Serat Pangrembag Ewah-ewahan Rarantaman Arta ing Taun 1925 Karembag ing Wulan Dhesember 1924
Authors: Fatimah Amah , N. Yusro Edy
Published: August 2020

ABSTRACT

 

Manuscript fiber Pangrembag Ewah-ewahan Rarantaman Arta ing Taun 1925 Karembag ing Wulan Dhesember 1924 is one of the collections of manuscripts of state documents on the financial budget that is stored in the Museum Radya Pustaka Surakarta. Manuscript Pangrembag Ewah-ewahan Rarantaman Arta ing Taun 1925 Karembag ing Wulan Dhesember 1924 has RP number 129-1 and is 22 pages. This manuscript is written using Javanese krama inggil language with inserted Javanese-Dutch absorption language. The purpose of this study presents the text ranging from the description of manuscripts, transliteration, text edits and the apparatus of criticism and translation. Research data is manuscripts Pangrembag Ewah-ewahan Rarantaman Arta ing Taun 1925Karembag ing Wulan Dhesember 1924. The method of research is a single standard edition script method. As for the translation of the text using free translation, so that the results of the translation easily understood by the reader. The results of this research is a valid edition of the text according to philological studies. There is also a critical and translation apparatus in Indonesian form.

 

Key words : Philology, Rarantaman Arta, Text.
Sinkretisme dalam Tradisi Bucu Kendhit di Desa Sidokumpul Kabupaten Tuban
Authors: Listiadah Siti Inzali , Purnomo Sucipto Hadi
Published: August 2020

ABSTRAK

 

Penelitian ini bertujuan untuk mendeskripsikan struktur luar dan struktur dalam tradisi Bucu Kendhit serta untuk mendeskripsikan perwujudan sinkretisme dalam tradisi Bucu Kendhit di Desa Sidokumpul, Kecamatan Bangilan, Kabupaten Tuban. Pendekatan yang digunakan dalam penelitian ini adalah pendekatan struktural dengan metode kualitatif deskriptif. Teknik pengumpulan data yang digunakan adalah teknik observasi, wawancara dan dokumentasi. hasil penelitian ini adalah Hasil penelitian ini adalah (1) Tradisi Bucu Kendhit memiliki dua struktur yaitu struktur luar (surface structure) dan struktur dalam (deep structure). Struktur luar (surface structure) meliputi: a) Pra upacara dan komponen penyusun; b) Proses pelaksanaan dan c) Ubarampe. Sedangkan struktur dalam (deep structure) meliputi : a) Kepercayaan masyarakat terhadap Tradisi Bucu Kendhit. b) Adanya fungsi Tradisi Bucu Kendhit yang teridiri dari fungsi sosial dan fungsi religi. c) Makna filosofi Tradisi Bucu Kendhit yang terdiri dari makna kebendaan, makna perilaku, dan makna ucapan atau ujaran. (2) Tradisi Bucu Kendhit di Desa Sidokumpul, Kecamatan Bangilan, Kabupaten Tuban memiliki tradisi slametan sebagai perwujudan sinkretisme yang mengandung tiga unsur yaitu: unsur Hindu, unsur Jawa, dan unsur Islam.

Kata Kunci: Sinkretisme, Struktur, Tradisi Bucu Kendhit

 

ABSTRACT

 

This research is aim to describe the surface structure and deep structure the tradition of Bucu Kendhit, and to describe the manifestation of syncretism in the tradition of Bucu Kendhit in Sidokumpul Village, Bangilan District, Tuban Regency. The approach used in this research is structure approach with descriptive qualitative method. Data collection techniques used were observation, interview and documentation techniques. The results of this study are: (1) The tradition of Bucu Kendhit has two structures namely the surface structure and the deep structure. The outer structure (surface structure) includes: a) Pre-ceremony and its components; b) The implementation process and c) Ubarampe. While the deep structure includes: a) Community trust in the Tradition of Bucu Kendhit. b) The function of the Bucu Kendhit Tradition which consists of social functions and religious functions. c) The meaning of the tradition of Bucu Kendhit's tradition which consists of material meaning, behavioral meaning, and the meaning of speech or utterance. (2) The tradition of Bucu Kendhit in Sidokumpul Village, Bangilan District, Tuban Regency has a slametan tradition as an embodiment of syncretism which contains three elements, namely: Hinduism, Javanese elements, and Islamic elements.

 

Keyword: Sinkretisme, Struktur, Tradisi Bucu Kendhit.
Estado del arte sobre el desarrollo rural durante el periodo comprendido entre 2004- 2014 en Colombia
Authors: Fonseca Viviana , Contreras Laura , Porras Laura , Vargas Prieto Amanda
Published: August 2020

En el marco de la firma del acuerdo de paz en Colombia, este artículo se cuestiona sobre las investigaciones que se han efectuado sobre desarrollo rural entre 2004 y 2014 en Colombia y cuáles han sido sus aportes con el fin de acompañar el proceso de implementación en el sector rural. Por esto, por medio de una metodología cualitativa, el artículo presenta un análisis de los hallazgos de las investigaciones académicas en Colombia que competen al desarrollo rural en el país y expone sus principales enfoques temáticos, autores y patrocinadores de los estudios. Mediante la identificación de los enfoques temáticos, se realiza una caracterización del contexto rural, una problematización y la presentación de la teoría de la nueva ruralidad, que se desarrolló desde diversos autores como una respuesta propositiva frente a la cuestión agraria en Colombia.
Le SEO pour votre cabinet d’optométrie : la « formule secrète » toujours efficace en 2020
Authors: Martel Cameron
Published: August 2020

Use of SEO in practice
Atrial Myopathy Underlying Atrial Fibrillation
Authors: Rivner Harold ,   Cardiovascular Division, Department of Medicine, University of Miami Miller School of Medicine, Miami, FL, US, Mitrani Raul D ,   Cardiovascular Division, Department of Medicine, University of Miami Miller School of Medicine, Miami, FL, US, Goldberger Jeffrey J ,   Cardiovascular Division, Department of Medicine, University of Miami Miller School of Medicine, Miami, FL, US
Published: August 2020

While AF most often occurs in the setting of atrial disease, current assessment and treatment of patients with AF does not focus on the extent of the atrial myopathy that serves as the substrate for this arrhythmia. Atrial myopathy, in particular atrial fibrosis, may initiate a vicious cycle in which atrial myopathy leads to AF, which in turn leads to a worsening myopathy. Various techniques, including ECG, plasma biomarkers, electroanatomical voltage mapping, echocardiography, and cardiac MRI, can help to identify and quantify aspects of the atrial myopathy. Current therapies, such as catheter ablation, do not directly address the underlying atrial myopathy. There is emerging research showing that by targeting this myopathy we can help decrease the occurrence and burden of AF.
Geostatistical modeling of surface water balance (SWB) under variable soil moisture conditions in the Pao river basin, Venezuela
Authors: Farias Bettys Elena
Published: August 2020

The aim of this paper is to develop a geostatistical model for the surface water balance (SWB) under variable soil moisture conditions of the Pao river basin, Venezuela. The novelty of the research consists in identifying a statistical model that will predict the spatial variability of hydro-meteorological data in the basin. A series of meteorological data from 25 stations for the period 2015-2017 were used in connection with the ordinary kriging technique. Infiltration values were analyzed considering three different soil moisture conditions: dry, normal and wet. To represent the semi variances of the SWB variables, the function J-Bessel was used. An adequate mathematical adjustment between observed and predicted values of SWB variables has been found expressed by the correlation coefficient (R) as followes: for precipitation, 0.54-0.81; for infiltration, 0.68-0.95; for runoff, 0.68-0.92: for evapotranspiration, 0.53-0.86; and for the accumulative volume, 0.53-0.95.
Characterization of comprehensive drought events associated with the ENSO warm phase through satellite images in the Valle del Cauca Colombia
Authors: Ojeda Flechas Carlos David , Burbano Rodriguez Jaime Alejandro , Carvajal Escobar Yesid , Hernández Torres Francisco Luis
Published: August 2020

The Synthesized Drought Index in the Valle del Cauca was evaluated, applying Principal Component Analysis to satellite images that described: Land Surface Temperature, Normalized Difference Vegetation Index and Precipitation. The magnitude of drought represented by this index was identified in the first component and validated with the Quarterly Standardized Precipitation Index (SPI – 3), obtained from 78 weather stations, which achieved correlations of between 0.55 and 0.71 during warm ENSO events. Comprehensive drought in the department was characterized by exhibiting areas of non-drought in the southwest, in the center-south a transition phase from wet to extremely dry, the Inter-Andean Valley showed sectors of severe drought, and to the east, extremely dry areas. Additionally, in a pilot municipality in the driest area of the department, a susceptibility model was implemented to detect areas affected by drought, applying the Analytical Hierarchical Process.
Preliminary study of drying of natural coffee by cyclical pressure changes
Authors: Parra-Coronado Alfonso , García-Navarrete Oscar Leonardo , Vanegas-Izquierdo Francy Alejandra , Gamboa-Gamboa José Alfredo , González-Mora Andrés Felipe , Ramirez-González David Andrés
Published: August 2020

A “special coffee” is obtained with an adequate drying process, which allows the preservation of volatile substances responsible for excellent cup quality. The aim was to carry out preliminary studies of drying of natural coffee by implementing a Cyclic Pressure Changes (CPCD) dryer, comparing it with solar drying and with a mechanical drying system by forced convection of low-temperature air. The drying times and rates of the systems used were compared, as well as the respective valuation of the cup quality. Drying times were 767 h for solar drying system, without reaching the desired moisture content; 153.5 h for mechanical drying system and 449 h for the CPCD system. However, the global cup tests showed a better quality of the grain obtained with the CPCD system (87 points), than the one obtained with the mechanical drying at 35°C (84 points).
Structural component fatigue analysis of a hydrogenerator rotor
Authors: Casanova Garcia Gonzalo Fernando , Cardona Gutierrez Andres Felipe , Mantilla Viveros Carlos Alberto
Published: August 2020

This paper presents a fatigue life calculation for the pole, the rotor rim, and the rotor spoke of a 100 MW hydro-generator. Mechanical and electrical parameters during unit start, with the hydro-generator working at several power levels, and during a load rejection from 100 MW were measured. The measured loads together with centrifugal force, gravity, and magnetic pulling force were included in finite element models to quantify stresses. Also, stresses produced during over-speed, phase-to-ground failure, and phase-to-phase failure were evaluated. A stress history for each element was obtained by fitting the calculated stresses, with the power generation history collected hourly during one year of operation of the machine. Fatigue life calculation was performed by using the stress history along with the Wang-Brown multiaxial fatigue model.
Experimental Modal Analysis of an Aircraft Wing Prototype for SAE Aerodesign Competition
Authors: Gasparetto Victor E.L , Machado Marcela , Carneiro Sergio H.S.
Published: August 2020

This work presents an experimental modal analysis of an aircraft wing prototype, designed by the Aerodesign team of the University of Brasilia, and performs a ground vibration testing of the prototype. The dynamic response data were acquired using the software LabVIEW, and the modal parameters were identified through the EasyMod toolbox. The modal parameters are characterised for the first seven vibration modes of the structure, with the firsts two being suspension modes of vibration. The effect of small changes in the experimental procedure on the identified modal parameters is discussed. It was observed that the use of an excitation signal as a logarithmic sine sweep and with a frequency range of excitation between 2 to 150 Hz resulted in less noise and more accurate measurement of the structure’s response. Results for different modal identification methods were verified using the Modal Assurance Criterion (MAC), and good correlation was achieved.