bluuebunny/crossref_metadata_2025 huggingface dataset:
Uma análise sociológica bernsteniana sobre os usos de materiais curriculares educativos
 A bernstenian sociological analysis on the uses of curricular educational materials
Authors: Aguiar Wagner Ribeiro , Oliveira Andreia Maria Pereira de
Published: April 2017

No campo de pesquisa da formação de professores que ensinam Matemática, sobretudo na literatura internacional, há um debate crescente e emergente acerca de materiais curriculares que possam atingir professores em larga escala e, ao mesmo tempo, potencializar sua aprendizagem. Nesse sentido, o presente artigo tem como objetivo apresentar concepções pelas quais pesquisadores conceituam materiais curriculares (educativos). Além disso, pretendemos discutir quatro concepções sobre usos de materiais curriculares educativos sistematizadas por Remillard (2005), bem como indicar limites e expandir esse estudo, apontando uma quinta concepção, a qual denominamos de recontextualizando o texto. Esta concepção baseia-se teoricamente no modelo do discurso pedagógico de Basil Bernstein (1990, 2000), explorado no corpo deste artigo. In the research field of teacher education that teaches Mathematics, especially in the international literature, there is a growing and emerging debate about (educational) curriculum materials that can reach teachers on a large scale and at the same time enhance their learning. This theoretical paper aims to present conceptions by which researchers conceptualize (educational) curriculum materials. In addition, we intend to discuss four conceptions on  the uses of systematic educational curriculum materials in a study by Janine Remillard, as well as to indicate limits and expand this study, pointing out a fifth conception, which we call recontextualising the text. This conception is theoretically based on Basil Bernstein's model of pedagogic discourse.
Análise praxeológica de livros didáticos de matemática: o caso dos números binários
 Praxeological analysis of a mathematics textbooks: the case of binary numbers
Authors: Mendes Herman Do lago
Published: April 2017

Objetiva analisar as organizações praxeológicas matemática e didática referente ao estudo de números binários em uma coleção de livros didáticos de matemática do Ensino Fundamental. Primeiro se faz uma análise praxeológica matemática. Em seguida se analisa as organizações praxeológicas didáticas recorrendo aos critérios de avaliação praxeológica de Yves Chevallard. Não identifica estudo de sistema de numeração binário, mas sim o emprego do sistema numérico decimal nas unidades de medida da informática. Conclui que a coleção analisada caracteriza-se como uma praxeologia local. Identifica 6 tipos de tarefas, uma técnica implícita, uma única tecnologia e nenhuma teoria no volume 7 e 3 tipos de tarefas, uma técnica implícita, nenhuma tecnologia e nenhuma teoria no volume 8. This research aims to analyze the mathematical praxeological and didactic praxeological organizations referring to the study of binary numbers in a collection of mathematics textbook suited for the final years of elementary school. First it makes a praxeological mathematical analysis. Then it analyzes the didactic praxeological organizations and finally, it defines evaluation criteria and praxeological mathematics teaching. It does not identify binary numbering system of study, but the use of the decimal number system in computer measurement units. It concludes that the analyzed collection is characterized as a local praxeology. It identifies 6 types of tasks, an implicit technique, a unique technology and any theory in Volume 7 and 3 types of tasks, an implicit technique, no technology and any theory in volume 8.
Competências matemáticas: perspectivas da SEFI e da MCC
 Mathematical competences: perspectives of SEFI and the MCC
Authors: Bianchini Barbara Lutaif , Lima Gabriel Loureiro de , Gomes Eloiza , Nomura Joelma Iamac
Published: April 2017

No presente artigo, de cunho teórico-bibliográfico, apresentam-se considerações a respeito da ideia de educação baseada em competências, para, então, discutir aspectos relacionados ao desenvolvimento de competências matemáticas pelo futuro engenheiro a partir de duas perspectivas: a do Mathematics Working Group da Société Européenne pour La Formation des Ingénieurs e a da teoria A Matemática no Contexto das Ciências, que por meio de uma noção mais ampla de competência, volta sua atenção não apenas àquelas relacionadas a conhecimentos matemáticos, mas também às profissionais e laborais, que, segundo preconiza essa teoria, podem ser desenvolvidas nas aulas de Matemática dos cursos de Engenharia se estes forem conduzidos segundo o Modelo Didático da Matemática em Contexto.In this theoric-bibliografic paper we want to show considerations about education ideas based on competences, therefore we will debate associated aspects to the Mathematics Competences development by the future engineer based on two perspectives: the Mathematics Working Group from the Société Européenne pour La Formation des Ingénieurs and the theory of Mathematic in the Sciences Context, using a amplified competence focused not only in those related to the mathematics knowledge but also the professional and labor ones, it can be developed in mathematic classes presentes in engineers graduation if they were teached by the Didatic Model of Mathematics in Context.
Construção e análise de modelos exponenciais de forma significativa: uma experiência de ensino em sala de aula
Authors: Sousa Emerson Silva de , Viali Lorí , Ramos Maurivan Güntzel
Published: April 2017

O presente artigo tem por objetivo descrever uma atividade que se deu pela construção e análise de alguns modelos matemáticos no contexto do estudo de funções exponenciais, utilizando dados empíricos e tendo como auxílio o uso de ferramentas da informática. Busca-se identificar nesse processo alguns elementos da Teoria de Aprendizagem Significativa. A atividade foi realizada dentro de uma disciplina de Pré-Cálculo com estudantes de vários cursos de graduação de uma universidade pública no Estado do Pará. Após a realização da atividade, os estudantes demonstraram ter compreendido os conceitos e propriedades relacionados às funções exponenciais, sinalizando um interesse maior pelo tema, pois puderam identificar sua aplicação em várias áreas do conhecimento, além da oportunidade de aprender e trabalhar com algumas ferramentas da informática como o Excel e o GeoGebra.Palavras-chave: Modelos Matemáticos. Funções Exponenciais. Aprendizagem Significativa.
Problematização de práticas socioculturais na formação de professores de Matemática
Authors: Mendes Iran Abreu , Silva Carlos Aldemir Farias da
Published: April 2017

Neste artigo apresentamos o desenvolvimento de uma pesquisa descritiva de algumas práticas socioculturais ou atividades profissionais, para a organização de um dossiê etnográfico que constituísse a matéria básica da elaboração de propostas didáticas para as aulas de matemática, sob um enfoque indisciplinar, a partir das realidades pesquisadas. O propósito do estudo foi que o professor explorasse essas práticas na organização de múltiplas problematizações para suas aulas de matemática na educação básica. As ações operacionalizadas fizeram parte de uma pesquisa mais ampla, financiada pelo CNPq, cuja temática envolveu relações entre história, cultura, práticas sociais e Educação Matemática. Neste sentido, a criação de conexões entre matemática, sociedade, cognição e cultura, com contribuições para a formação de professores de matemática, constituiu-se em nosso fundamento teórico que se materializou na pesquisa das práticas socioculturais de alguns grupos sociais do Rio Grande do Norte e de outros estados da região Nordeste do Brasil, com vistas à produção de material de apoio para o desenvolvimento de ações formativas junto a um grupo de professores da rede pública de ensino do Rio Grande do Norte, envolvidos no projeto. Os resultados obtidos subsidiaram a elaboração de unidades básicas de problematização (UBPs) pelos professores envolvidos no projeto, conforme sugerem Miguel e Mendes (2010), visando seu uso nas escolas do ensino fundamental e médio.Palavras-chave: Problematização. Investigação. Formação de Professores.
Uma proposta de investigação tecnológica na Educação Básica: aliando o ensino de Matemática e a Robótica Educacional
Authors: Araújo Carlos Alberto Pedroso , Santos Juliana da Ponte , Meireles Juliane Conceição de
Published: April 2017

O presente artigo mostra desdobramentos de pesquisas realizadas, envolvendo recursos computacionais. O ponto de partida ocorreu com o estudo, elaboração, planejamento e execução de métodos e procedimentos de ensino e aprendizagem de conceitos matemáticos e suas relações com a robótica educacional. O objetivo central foi o de produzir adaptações de aprendizagens, a partir da articulação entre diretrizes de pesquisas e investigações realizadas no campo experimental da computação e da matemática. Os encaminhamentos da investigação, realizada entre os anos de 2014 e 2015, em uma Escola da Educação Básica, no Município de Santarém/PA, contou com a participação de 17 alunos, uma professora da rede pública de ensino e quatro pesquisadores que atuam em diferentes níveis de ensino. A organização teórica e metodológica desta pesquisa foi pautada em princípios advindos da Teoria da Atividade e da pesquisa exploratória, com elementos da pesquisa qualitativa. A etapa desenvolvida na escola foi antecedida pela organização de um conjunto de atividades, voltadas para as aprendizagens de conceitos matemáticos no ensino fundamental, produzidas no Laboratório de Robótica Educacional Aplicado à Educação Matemática – LRE/EDUMAT, vinculado a UFOPA. Os resultados da pesquisa mostram a elaboração de cenários de atividades e procedimentos instrumentais, visando a possibilidade de ações relativas a experiências educacionais realizadas com robôs, na educação básica. Somados a esse aspecto, o exercício cognitivo de habilidades e competências relacionais e articuladas com aspectos curriculares, promoveu aos envolvidos um ambiente propício para o desenvolvimento de uma ação pedagógica, tendo como foco possível a problematização de situações didáticas, objetivando o despertar do trabalho colaborativo e o estímulo, por parte dos integrantes, em relação à pesquisa.Palavras-chave: Robótica Educacional. Ensino de Matemática. Teoria da Atividade.
A construção de conceitos em botânica a partir de uma sequência didática interativa: proposições para o ensino de Ciências
Authors: Moul Renato Araújo Torres de Melo , Silva Flávia Carolina Lins da
Published: April 2017

A botânica, uma das áreas de estudo da Biologia, é vista por muitos docentes como um obstáculo para a transposição didática. O ensino de botânica por vezes se dá de forma desarticulada e desprovido de contextualização, numa abordagem que dificulta a adequada aprendizagem dos conceitos. A fim de compreender a construção dos conceitos científicos de vinte e quatro estudantes do Ensino Médio acerca de temas em botânica, empregamos a Sequência Didática Interativa (SDI), com o acompanhamento da elaboração do conhecimento por etapas e em interação com os pares. Como resultado, observou-se que muitas concepções dos estudantes são reafirmadas após a sequência didática, novos conceitos aparecem na formulação de argumentos e ainda, se produz uma visão holística, articulando as plantas entre os diversos níveis de organização em Biologia.Palavras-chave: Ensino. Conceitos. Botânica.
O trabalho da equipe multidisciplinar da assistência estudantil no IFCE - Campus Fortaleza/CE
Authors: Araújo Helena de Lima Marinho Rodrigues , Andrade Francisca Rejane Bezerra
Published: April 2017

Este artigo é parte do Relatório de Pós-Doutorado realizado na Universidade Estadual do Ceará (UECE), finalizado em agosto de 2016. O objetivo desse estudo foi compreender aspectos sobre o trabalho da equipe multidisciplinar da Assistência Estudantil do Instituto de Educação, Ciência e Tecnologia do Ceará (IFCE) - campus Fortaleza. É um estudo qualitativo e foram utilizados o depoimento com membros da gestão, bem como as entrevistas semiestruturadas com a assistente social, a pedagoga e a psicóloga. Os resultados sinalizaram que a ausência de uma Controladoria de Assistência Estudantil, falta de integração da equipe, quadro restrito de funcionários e orçamento insuficiente dificultam o trabalho da equipe multidisciplinar.Palavras-chave: Assistência Estudantil. Equipe Multidisciplinar. IFCE.
Editorial
Authors: Colares Maria Lília Imbiriba Sousa , Mafra José Ricardo e Sousa
Published: April 2017

A Revista Exitus chega ao seu 13º número dando continuidade à sua vocação de estabelecer o diálogo científico com o mundo acadêmico nacional e internacional. Oriunda do Programa de Pós-graduação do Instituto de Ciências da Educação/ICED da Universidade Federal do Oeste do Pará – UFOPA, a revista segue cumprindo seu objetivo de disseminar os avanços no campo educacional. Neste volume 7, número 2, tivemos a contribuição em sua organização, do prof. Dr. José Ricardo e Souza Mafra docente do PPGE UFOPA. As contribuições nacionais são oriundas de pesquisas desenvolvidas nos Estados de Rondônia, São Paulo, Minas Gerais, Maranhão, Pará, Rio Grande do Sul, Rio Grande do Norte, Rio de Janeiro, Tocantins, Pernambuco e Ceará. A experiência internacional está contemplada no artigo de pesquisadoras da Universidade Nacional de Córdoba, Argentina.
Africanismos en el español de México
Authors: Lara Luis Fernando
Published: April 2017

Fecha de recepción: 7 de octubre de 2014.Fecha de aceptación: 28 de mayo de 2015. Después de una revisión de lo que se conoce acerca de los esclavos africanos en Hispanoamérica desde el siglo xvi y las diferentes hipótesis que se han ofrecido acerca de la formación de un pidgin o incluso un protocriollo portugués-lenguas africanas, se explora el modo en que los africanos se asimilaron en la Nueva España, para resaltar la diferencia entre esta región y las demás de Hispanoamérica. Se muestra que la influencia de las lenguas africanas en el español mexicano se reduce al léxico, tanto en topónimos como en vocablos propios de la vida diaria. Se ofrecen sendas listas de africanismos con su discusión etimológica.
Lexicografía académica y lexicografía didáctica: ¿relaciones excluyentes o conceptos complementarios?
Authors: Hernández Humberto
Published: April 2017

Fecha de recepción: 21 de julio de 2014.Fecha de aceptación: 29 de mayo de 2015. A pesar de que el reconocimiento e influencia de la Real Academia Española en la lexicografía hispánica ha sido enorme, nunca se planteó la Institución un cambio de orientación en sus planteamientos generales ni, desde una perspectiva más particular, una adecuación de los diccionarios a las exigencias de ciertos grupos de usuarios. Sin duda, una actitud excluyente entre “lo académico” y “lo didáctico”, la ausencia de unos objetivos claros en su política lexicográfica y no haber aprovechado suficientemente las posibilidades de sus propios recursos es lo que ha dado lugar, como se demuestra en este trabajo, a que el panorama lexicográfico académico se presente tan heterogéneo e inconexo.
"Dolorosa métrica y expresión del sitio y entrega de La Habana": edición crítica del texto
Authors: Carabias Orgaz Miguel
Published: April 2017

Fecha de recepción: 7 de mayo de 2015.Fecha de aceptación: 25 de agosto de 2015.En este trabajo, presento la primera edición crítica del extenso poema “Dolorosa métrica expresión del sitio y entrega de La Habana”. Redactado en el contexto de la ocupación inglesa de La Habana de 1762, constituye uno de los testimonios más interesantes de la primera poesía cubana. El texto se debe a la mano de una autora habanera, cuya identidad aún es objeto de discusión, y ofrece un enorme atractivo en relación con el estudio de la literatura y la historia de Cuba y de Hispanoamérica en su conjunto.
El canon parnasiano de la poesía modernista mexicana
Authors: Feria Miguel Ángel
Published: April 2017

Fecha de recepción: 16 de marzo de 2015.Fecha de aceptación: 8 de diciembre de 2015.En México, la superación del romanticismo hacia el modernismo vino propiciada por la aportación clave del parnasianismo francés, alentada primero por críticos y traductores en diarios y revistas. Poco a poco acabó instaurándose un canon parnasiano que sería la nota dominante hasta aproximadamente 1898. en dicho año se publica la fundamental Revista moderna, donde lo parnasiano ha de convivir con tendencias más novedosas como el decadentismo y el simbolismo. un nuevo canon orienta los designios de la modernidad, y el parnasianismo se irá viendo relegado en las letras mexicanas a mera retórica, más propia del siglo XIX que del XX.
Bibliografía de filología hispánica
Authors: Filología Hispánica Nueva Revista de
Published: April 2017

Las reseñas se consignan a continuación del libro (o artículo reseñado). Cuando éste se ha descrito en una entrega anterior de la Bibliografía, se pone entre paréntesis el número de ficha correspondiente. También se hacen referencias a ediciones anteriores de una obra, a tomos anteriores de una obra en curso de publicación, etc. En estos casos, la cifra que precede al número de referencia indica el volumen de la NRFH en que figura la ficha en cuestión. Así, el "núm. 39-39695" corresponde a la ficha 39695, la cual está en el volumen 39 de la NRFH. Cuando no hay cifra inicial, ha de entenderse que el número remite a una ficha incluida en el presente fascículo.
Taze Doğranmış Kırmızılahananın (Türk Dil Kurumu Sözlüğüne göre kırmızılahana bitişik yazılıyor) Raf Ömrünün Analitik ve Matematiksel Olarak Belirlenmesi
Authors: Şimşek Fulya , Kızılırmak Esmer Özlem
Published: April 2017

Fresh-cut fruits and vegetables have longer shelf lives when appropriate packaging materials having proper permeability properties are used. For this reason eight different packaging materials having different permeability properties were used and it was aimed to determine the appropriate packaging material and analytical and mathematical shelf lives of fresh cut red cabbage. Head space analysis, microbiological and sensorial analysis together with pH, weight loss (%) and colour analysis were performed. As a result of the study, it was determined that low density polyethylene (LDPE) film having 20 µm of thickness and 12276 cc/m2-day of oxygen permeability was determined as the most suitable packaging material for packaging of fresh-cut red cabbage. Mathematical microbiological shelf life was determined as 12.33 days and both analytical microbiological and sensorial shelf lives were determined as 12 days. It was shown that Gompertz equation can be used in determination of microbiological shelf life of fresh-cut red cabbage since the analytical and mathematical shelf life results fit to each other. Also, the equation that can be used in calculation of shelf life of fresh-cut red cabbage when packaged with AYPE film having 12276 cc/m2-day oxygen permeability was determined as log(Nt/N0) = 6,83 × exp{-exp{[(0,80*e)(6,83-t)/6,83]+1}}.
The Role of Mass Media in Health Communication in China
Authors: Fan Hong
Published: April 2017

Recently public health issues have aroused great social concern in China, and mass media has started to play an increasingly important ro/e in public hea/th communication. This paper depicts the current situation of hea/th communication in China. By illustrating the major functions of the Chinese mass media in hea/th communication, the paper puts forward some suggestions for the improvement of public health communication via mass media in China.
The Distribution of Facts and Fictions.
Authors: Hetzel Mechthild , Hetzel Andreas
Published: April 2017

In our paper we discuss the political aesthetics of Jacques Rancière, specially his writings on the documentaries of the French director Chris Marker. In a first section we give an introduction to Rancière’s political philosophy, which explains political acts in terms of seizing the word by those who have no share in our societies. Such a seizing of words reconfigures the discursive regimes that decide who can say what and under what conditions publicly. In a second section we will show how Rancière’s aesthetical writings discuss works of art in a similar way as agents of a transfiguration of orders of visibility or sight. This becomes clear, as our third section will argue, in Rancière’s film aesthetics, especially in his essays on Chris Marker. Markers movies (for instance Le Tombeau d'Alexandre) focus on and at the same time complicate the boundaries between documentary and fiction; they allow us to understand a reality which is supposedly without alternatives as a result of human practice which always can be changed.
The Changing Face of the German Broadcast Television Industry
Authors: Murschetz Paul
Published: April 2017

This study offers an economic analysis of the television broadcasting industry at the convergence of broadcast and broadband connectivity. It applies the „Structure-Conduct- Performance“(SCP)-paradigm of Industrial Organization theory as framework and investigates how the model can contribute to explaining emergent issues in the economics of Smart TV. It is argued here that SCP model provides a useful heuristic and can fruitfully be applied to various questions surrounding the fundamental transformation of the television broadcasting sector towards Smart TV, notably issues of market structure and competitive behavior. The argument is illustrated by the emerging ecosystem for Smart TV services in Germany. There, the market is still immature and each provider is struggling with the challenge of developing an optimal strategy and organizational form in the Smart TV ecosystem.
Chinese Students in Canadian Higher Education: A Case for Reining in Our Use of the Term “Generation 1.5”
Authors: Marshall Steve , Lee Ena
Published: April 2017

Roberge defines the 1.5 Generation as “those who immigrate as young children and have life experiences that span two or more countries, cultures and languages” (2009, p. 4). In US and Canadian higher education, the term has gained considerable recognition, with the scope of the term broadening among some educators to include bi/multilingual students in general. In this article, we present selected data on students of Chinese ethnicity (322 survey respondents and three interviewees) from a broader two-year study of the languages, literacies, and identities of multilingual undergraduate students in Vancouver, where, in the 2011 census, one in five of the people living in the city reported being of Chinese ethnicity (Statistics Canada, 2011). Our aim was to analyze how key social, cultural, and linguistic defining features of the term Generation 1.5 that we found in the literature were represented in participants’ survey and interview responses to open questions about their languages and identities. Five themes emerged: (a) being foreign-born and finishing secondary school in Canada, (b) being an international student, (c) being somewhere in between here and there, (d) (in)competence and language use, and (e) perceiving deficit in cultural knowledge. Participants’ responses illustrated complex, transnational interweavings of languages, identities, and literacies around these five themes, leading us to question our institutional use of the homogeneous term Generation 1.5 to describe a heterogeneous group of multilingual, transnational students of Chinese ethnicity.
Immigrant Adolescents Investing in Korean Heritage Language: Exploring Motivation, Identities, and Capital
Authors: Kim Jung-In
Published: April 2017

The current study examined the perspectives of seven immigrant adolescents on aspects of their lives that informed their determined and autonomous motivations to learn Korean as a heritage language (HL) in the United States. Constant comparative analyses of interview data showed that, although all of the students experienced determined motivations in their lived experience, their motivational experiences to learn Korean varied across contexts (e.g., home, American school, and Korean HL school) and showed at least three meaningfully distinct patterns. The students’ determined motivations to learn Korean were informed by their negotiated HL learner identities within their immediate and imagined communities. The various forms of social, cultural, and symbolic capital within those communities seemed to fulfill the students’ psychological needs, such as relatedness and competence, allowing them to experience determined motivations.
Chronic Pelvic Pain: Addressing a Common Debilitating Condition of Women
Authors: Rouf Salma
Published: April 2017

Abstract not availableJ Bangladesh Coll Phys Surg 2016; 34(3): 126-127
Clinical Presentation and Bacterial Etiology of Adult Community Acquired Pneumonia
Authors: Salam Md Abdus , Amin Md Robed , Islam Quazi Tarikul
Published: April 2017

Introduction: Pneumonia is a worldwide, serious threat to health and an enormous socio-economic burden for health care system. According to recent WHO data, each year 3-4 million patients die from pneumonia. The clinical presentations and bacterial agents responsible for community acquired pneumonia (CAP) varies according to geography and culture.Methods: A cross sectional observational study conducted among the 53 consecutive patients with a clinical diagnosis of CAP in admitted patient in the department of Medicine, DMCH, during January 2010 to December 2010. Hematological measurements (TC of WBC, Hb%, ESR, platelet count), blood culture, chest X-ray P/A view, sputum for Gram staining and culture sensitivity, sputum for AFB, blood urea and random blood sugar were done in all cases. ELISA for IgM antibody of Mycoplasma pneumoniae and Chlamydia pneumoniae were done in sputum culture negative cases.Results: The mean (±SD) age was 38.9±17.3 years and Male female ratio was 3:1. Fever, chest pain and productive cough were the most common clinical features. The mean (±SD) respiratory rate was 23.0±2.8 /minute . COPD and DM were found in 17.0% and 5.7% of patients respectively . Blood culture was found positive in only 1.9% of the study patients. Gram positive Cocci 62.26%, Gram negative Bacilli 9.43%, mixed Gram positive cocci and Gram negative bacilli 11.32% and Gram negative Cocco Bacilli 1.9% were observed and in 15.03 % cases, no bacteria could be seen. Sputum culture revealed 53.8% streptococcus pneumoniae, 26.9% Klebsiella pneumonia as predominant organism. Mycoplasma pneumoniae and Chlamydia pneumoniae were found in 7.4% and 3.7% respectively by serological test. For Streptococcus pneumoniae, sensitive antibiotics were Amoxyclav and Levofloxacin. For Gram negative bacilli and coccobacilli, more sensitive antibiotics were Meropenem, Ceftriaxone, and Clarithromycin. The best sensitive drug were found meropenem. The mean (±SD) duration of hospital stay was 5.0±1.7 days with ranging from 3 to 10 days.Conclusion: Region based bacteroiological diagnosis of Cap is important for selecting the best and sensitive drugs for complete cure.J Bangladesh Coll Phys Surg 2016; 34(3): 128-134
Endometriosis: Correlation of Severity of Pain with Stages of Disease
Authors: Chowdhury Tanzeem S , Mahmud Nusrat , Chowdhury TA
Published: April 2017

Objective: To assess the prevalence and severity of pain in patients with endometriosis and to evaluate the relationship between the severity of pelvic pain with different stages of endometriosis.Methods: A prospective observational study conducted among 65 patients diagnosed with endometriosis during surgery in Infertility Management Center Dhaka, a specialized center for treatment of infertility and assisted reproductive technologies from January 2008 to January 2009.Result: Majority of the patients were between 26-30 years. Pelvic pain was the predominant symptom in 78.5% patients and the rest were asymptomatic. Among the symptomatic patients, most common symptom was dysmenorrhoea (n=47, 92.1%).When severity of pain was graded; it was observed that most (37%) presented with moderate pain. Infertility was present in 85% patients, mostly (n- 47 =74%) in primary sub fertility group. The commonest site of endometriosis was uterosacral ligament (n-58=89%) and ovarian endometriosis is noted in (63%) cases. Most of the lesions (35%) were black, haemosiderin deposits. When r-ASRM staging system was applied, majority (58.4%) of the patients was in stage IV disease and most of the patients (31%) with endometrioma were in stage IV disease. The study revealed a strong positive correlation between severe pain and stage IV disease (Correlation co efficient 0.711). Moderate forms of pain and severity of disease did not show any positive correlation in this study (Correlation co efficient 0.390). There was negative correlation between milder forms of pain with severity of disease.Conclusion: There was no relationship between frequency and severity of pain symptoms and disease stage of endometriosis.J Bangladesh Coll Phys Surg 2016; 34(3): 135-139
From the Desk of Editor in Chief Vol.34(3)
Authors: Azad Khan Abul Kalam
Published: April 2017

Abstract not availableJ Bangladesh Coll Phys Surg 2016; 34(3): 181
Are We Mad? Intensity and the Problems of Modern Philosophy
Authors: Bell Jeffrey A.
Published: April 2017

In this essay Deleuze's concept of intensity is placed into the context of the problem of accounting for the relationship between sense perception and our conceptual categories. By developing the manner in which Kant responds to Hume's critique of metaphysics, this essay shows how Deleuze develops a Humean line of thought whereby the heterogeneous as heterogeneous is embraced rather than, as is done in Kant, being largely held in relationship to an already prior unity.
Death Cafés: Death Doulas and Family Communication
Authors: Baldwin Paula
Published: April 2017

The Death Café is part of the Death Positive movement, and as such, is uniquely positioned to bring the dialogue about death and dying to the public. Participants in a Death Café typically have two different perspectives. Some participants have not experienced death in their family and friends’ circle and wish to converse with others about their beliefs on death and dying. Others are those who have experienced death somewhere in their circle of friends and families. One of goals of the Death Café facilitators is to help attendees reconcile their family narratives regarding death using the broader lens of the Death Café. Using the insights provided by interviews from 15 Death Café facilitators, this manuscript discusses the role of the Death Café facilitators as the death doulas of family communication.
Multicomponent and Longitudinal Imaging Seen as a Communication Channel—An Application to Stroke
Authors: Giacalone Mathilde , Frindel Carole , Grenier Emmanuel , Rousseau David
Published: April 2017

In longitudinal medical studies, multicomponent images of the tissues, acquired at a given stage of a disease, are used to provide information on the fate of the tissues. We propose a quantification of the predictive value of multicomponent images using information theory. To this end, we revisit the predictive information introduced for monodimensional time series and extend it to multicomponent images. The interest of this theoretical approach is illustrated on multicomponent magnetic resonance images acquired on stroke patients at acute and late stages, for which we propose an original and realistic model of noise together with a spatial encoding for the images. We address therefrom very practical questions such as the impact of noise on the predictability, the optimal choice of an observation scale and the predictability gain brought by the addition of imaging components.
Probabilistic Power Flow Method Considering Continuous and Discrete Variables
Authors: Zhang Xuexia , Guo Zhiqi , Chen Weirong
Published: April 2017

This paper proposes a probabilistic power flow (PPF) method considering continuous and discrete variables (continuous and discrete power flow, CDPF) for power systems. The proposed method—based on the cumulant method (CM) and multiple deterministic power flow (MDPF) calculations—can deal with continuous variables such as wind power generation (WPG) and loads, and discrete variables such as fuel cell generation (FCG). In this paper, continuous variables follow a normal distribution (loads) or a non-normal distribution (WPG), and discrete variables follow a binomial distribution (FCG). Through testing on IEEE 14-bus and IEEE 118-bus power systems, the proposed method (CDPF) has better accuracy compared with the CM, and higher efficiency compared with the Monte Carlo simulation method (MCSM).
miR-103 Promotes Proliferation and Metastasis by Targeting KLF4 in Gastric Cancer
Authors: Zheng Jie , Liu Yuzhen , Qiao Yanchun , Zhang Liying , Lu Shijun
Published: April 2017

MicroRNAs (miRNAs) play important roles in the cancer development and progression; overexpression of miR-103 has been identified in various tumors. However, its biological function and regulatory mechanism involved in modulation of human gastric cancer (GC) remain largely unknown. This study aimed to confirm clinical significance of miR-103 and investigate its biological role and underlying mechanism in GC. Real-time quantitative PCR (qRT-PCR) revealed miR-103 was highly expressed in GC tissues and cell lines. miR-103 expression was correlated closely with tumor size, Lauren’s classification, and lymph node metastasis. Importantly, Kaplan-Meier analysis revealed that high expression of miR-103 was significantly associated with poor overall survival and disease-free survival of GC patients. Downregulation of miR-103 by transfecting with miR-103 inhibitor significantly suppressed cell proliferation, induced apoptosis, inhibited migration and invasion in vitro and in vivo. Furthermore, miRNA target databases and luciferase reporter assay confirmed that Krüppel-like Factor-4 (KLF4) was a direct target of miR-103 in GC, and there was a significant inverse correlation between miR-103 and KLF4 expression in GC tissues. Moreover, KLF4 downregulation could rescue miR-103’s oncogenic effect on GC cell proliferation, apoptosis, migration, and invasion. Therefore, these results suggested that miR-103 overexpression could contribute to tumor progression by suppressing KLF4, and it might serve as a promising candidate for the prognosis of GC patients.
High Temperature Deformation Mechanisms in a DLD Nickel Superalloy
Authors: Davies Sean , Jeffs Spencer , Lancaster Robert , Baxter Gavin
Published: April 2017

The realisation of employing Additive Layer Manufacturing (ALM) technologies to produce components in the aerospace industry is significantly increasing. This can be attributed to their ability to offer the near-net shape fabrication of fully dense components with a high potential for geometrical optimisation, all of which contribute to subsequent reductions in material wastage and component weight. However, the influence of this manufacturing route on the properties of aerospace alloys must first be fully understood before being actively applied in-service. Specimens from the nickel superalloy C263 have been manufactured using Powder Bed Direct Laser Deposition (PB-DLD), each with unique post-processing conditions. These variables include two build orientations, vertical and horizontal, and two different heat treatments. The effects of build orientation and post-process heat treatments on the materials’ mechanical properties have been assessed with the Small Punch Tensile (SPT) test technique, a practical test method given the limited availability of PB-DLD consolidated material. SPT testing was also conducted on a cast C263 variant to compare with PB-DLD derivatives. At both room and elevated temperature conditions, differences in mechanical performances arose between each material variant. This was found to be instigated by microstructural variations exposed through microscopic and Energy Dispersive X-ray Spectroscopy (EDS) analysis. SPT results were also compared with available uniaxial tensile data in terms of SPT peak and yield load against uniaxial ultimate tensile and yield strength.
Self-Compliant Bipolar Resistive Switching in SiN-Based Resistive Switching Memory
Authors: Kim Sungjun , Chang Yao-Feng , Kim Min-Hwi , Kim Tae-Hyeon , Kim Yoon , Park Byung-Gook
Published: April 2017

Here, we present evidence of self-compliant and self-rectifying bipolar resistive switching behavior in Ni/SiNx/n+ Si and Ni/SiNx/n++ Si resistive-switching random access memory devices. The Ni/SiNx/n++ Si device’s Si bottom electrode had a higher dopant concentration (As ion > 1019 cm−3) than the Ni/SiNx/n+ Si device; both unipolar and bipolar resistive switching behaviors were observed for the higher dopant concentration device owing to a large current overshoot. Conversely, for the device with the lower dopant concentration (As ion < 1018 cm−3), self-rectification and self-compliance were achieved owing to the series resistance of the Si bottom electrode.
Anthocyanin Profiles in Flowers of Grape Hyacinth
Authors: Lou Qian , Wang Lin , Liu Hongli , Liu Yali
Published: April 2017

Grape hyacinth (Muscari spp.) is a popular ornamental bulbous perennial famous for its blue flowers. To understand the chemical basis of the rich blue colors in this plant, anthocyanin profiles of six blue flowering grape hyacinths as well as one pink and one white cultivar were determined using high-performance liquid chromatography and mass spectrometry. Along with two known compounds, eight putative anthocyanins were identified in the tepals of grape hyacinth for the first time. The accumulation and distribution of anthocyanins in the plant showed significant cultivar and flower development specificity. Violet-blue flowers mainly contained simple delphinidin-type anthocyanins bearing one or two methyl-groups but no acyl groups, whereas white and pink flowers synthesised more complex pelargonidin/cyanidin-derivatives with acyl-moieties but no methyl-groups. The results partially reveal why solid blue, orange or red flowers are rare in this plant in nature. In addition, pelargonidin-type anthocyanins were found for the first time in the genus, bringing more opportunities in terms of breeding of flower color in grape hyacinth.
Discovery of Farnesoid X Receptor Antagonists Based on a Library of Oleanolic Acid 3-O-Esters through Diverse Substituent Design and Molecular Docking Methods
Authors: Wang Shao-Rong , Xu Tingting , Deng Kai , Wong Chi-Wai , Liu Jinsong , Fang Wei-Shuo
Published: April 2017

The pentacyclic triterpene oleanolic acid (OA, 1) with known farnesoid X receptor (FXR) modulatory activity was modified at its C-3 position to find new FXR-interacting agents. A diverse substitution library of OA derivatives was constructed in silico through a 2D fingerprint similarity cluster strategy. With further docking analysis, four top-scored OA 3-O-ester derivatives were selected for synthesis. The bioassay results indicated that all four compounds 3 inhibited chenodeoxycholic acid (CDCA)-induced FXR transactivation in a concentration-dependent mode. Among them 3b and 3d are more active than the parent compound OA. A molecular simulation study was performed to attempt to explain the structure-activity relationship (SAR) and the antagonistic action. To the best of our knowledge, this is the first report on semi-synthetic pentacyclic triterpenoids with FXR-modulatory activities.
Bioactive Components from Qingwen Baidu Decoction against LPS-Induced Acute Lung Injury in Rats
Authors: Zhang Qi , Lei Hai-Min , Wang Peng-Long , Ma Zhi-Qiang , Zhang Yan , Wu Jing-Jing , Nie Jing , Chen Su-Juan , Han Wen-Jie , Wang Qing , Chen Dan-Yang , Cai Cheng-Ke , Li Qiang
Published: April 2017

Qingwen Baidu Decoction (QBD) is an extraordinarily “cold” formula. It was traditionally used to cure epidemic hemorrhagic fever, intestinal typhoid fever, influenza, sepsis and so on. The purpose of this study was to discover relationships between the change of the constituents in different extracts of QBD and the pharmacological effect in a rat model of acute lung injury (ALI) induced by lipopolysaccharide (LPS). The study aimed to discover the changes in constituents of different QBD extracts and the pharmacological effects on acute lung injury (ALI) induced by LPS. The results demonstrated that high dose and middle dose of QBD had significantly potent anti-inflammatory effects and reduced pulmonary edema caused by ALI in rats (p < 0.05). To explore the underlying constituents of QBD, we assessed its influence of six different QBD extracts on ALI and analyzed the different constituents in the corresponding HPLC chromatograms by a Principal Component Analysis (PCA) method. The results showed that the pharmacological effect of QBD was related to the polarity of its extracts, and the medium polarity extracts E2 and E5 in particular displayed much better protective effects against ALI than other groups. Moreover, HPLC-DAD-ESI-MSn and PCA analysis showed that verbascoside and angoroside C played a key role in reducing pulmonary edema. In addition, the current study revealed that ethyl gallate, pentagalloylglucose, galloyl paeoniflorin, mudanpioside C and harpagoside can treat ALI mainly by reducing the total cells and infiltration of activated polymorphonuclear leukocytes (PMNs).
Fructose, Glucocorticoids and Adipose Tissue: Implications for the Metabolic Syndrome
Authors: Legeza Balázs , Marcolongo Paola , Gamberucci Alessandra , Varga Viola , Bánhegyi Gábor , Benedetti Angiolo , Odermatt Alex
Published: April 2017

The modern Western society lifestyle is characterized by a hyperenergetic, high sugar containing food intake. Sugar intake increased dramatically during the last few decades, due to the excessive consumption of high-sugar drinks and high-fructose corn syrup. Current evidence suggests that high fructose intake when combined with overeating and adiposity promotes adverse metabolic health effects including dyslipidemia, insulin resistance, type II diabetes, and inflammation. Similarly, elevated glucocorticoid levels, especially the enhanced generation of active glucocorticoids in the adipose tissue due to increased 11β-hydroxysteroid dehydrogenase 1 (11β-HSD1) activity, have been associated with metabolic diseases. Moreover, recent evidence suggests that fructose stimulates the 11β-HSD1-mediated glucocorticoid activation by enhancing the availability of its cofactor NADPH. In adipocytes, fructose was found to stimulate 11β-HSD1 expression and activity, thereby promoting the adipogenic effects of glucocorticoids. This article aims to highlight the interconnections between overwhelmed fructose metabolism, intracellular glucocorticoid activation in adipose tissue, and their metabolic effects on the progression of the metabolic syndrome.
Spectroscopic Detection of Glyphosate in Water Assisted by Laser-Ablated Silver Nanoparticles
Authors: De Góes Rafael , Muller Marcia , Fabris José
Published: April 2017

Glyphosate is one of the most widely used herbicides in the world. Its safety for both human health and aquatic biomes is a subject of wide debate. There are limits to glyphosate’s presence in bodies of water, and it is usually detected through complex analytical procedures. In this work, the presence of glyphosate is detected directly through optical interrogation of aqueous solution. For this purpose, silver nanoparticles were produced by pulsed laser ablation in liquids. Limits of detection of 0.9 mg/L and 3.2 mg/L were obtained with UV-Vis extinction and Surface Enhanced Raman spectroscopies, respectively. The sensing mechanism was evaluated in the presence of potential interferents as well as with commercial glyphosate-based herbicides.
Platform Architecture for Decentralized Positioning Systems
Authors: Kasmi Zakaria , Norrdine Abdelmoumen , Blankenbach Jörg
Published: April 2017

A platform architecture for positioning systems is essential for the realization of a flexible localization system, which interacts with other systems and supports various positioning technologies and algorithms. The decentralized processing of a position enables pushing the application-level knowledge into a mobile station and avoids the communication with a central unit such as a server or a base station. In addition, the calculation of the position on low-cost and resource-constrained devices presents a challenge due to the limited computing, storage capacity, as well as power supply. Therefore, we propose a platform architecture that enables the design of a system with the reusability of the components, extensibility (e.g., with other positioning technologies) and interoperability. Furthermore, the position is computed on a low-cost device such as a microcontroller, which simultaneously performs additional tasks such as data collecting or preprocessing based on an operating system. The platform architecture is designed, implemented and evaluated on the basis of two positioning systems: a field strength system and a time of arrival-based positioning system.
Pharmaceutical Equivalence of Clarithromycin Oral Dosage Forms Marketed in Nairobi County, Kenya
Authors: Manani Rebecca , Abuga Kennedy , Chepkwony Hezekiah
Published: April 2017

Clarithromycin is a broad-spectrum semi-synthetic macrolide indicated for treatment of pneumonias, Helicobacter pylori, and chlamydial and skin infections. The object of this study was to evaluate the pharmaceutical equivalence of 14 generic clarithromycin products marketed in Nairobi County, Kenya, to the innovator products, using in vitro dissolution profiles and similarity factors (f2). Further, dissolution profiles of four innovator formulations manufactured in different sites were compared. Fourteen clarithromycin tablets/capsules and four suspensions were subjected to assay and comparative dissolution runs at pH 1.2, 4.5 and 6.8, for 60 and 90 min, respectively. All products complied with pharmacopoeial assay specifications. However, significant differences were observed in their dissolution profiles. The non-compliance rates for tablets/capsules were 50% at pH 1.2, 33% at pH 4.5 and 50% at pH 6.8, while none of the four suspensions were compliant. Overall, only four (25%) products complied with the specifications for similarity factor. The results obtained indicate that a significant percentage of generic clarithromycin products are pharmaceutically non-equivalent to the innovator products, and that assay and single-point dissolution tests are insufficient demonstration of equivalence between the generic and innovator products.
Economic Analysis of a Traceability System for a Two-Level Perishable Food Supply Chain
Authors: Zhu Lijing
Published: April 2017

Food waste stemmed from food contamination and ineffective quality control is a significant challenge to food management. Supply chain traceability has become an essential task of the food industry for guaranteeing food quality and safety and reducing food waste. Radio Frequency Identification (RFID) has emerged as a lead technology in the development of traceability systems, which enable automatically capturing of food information along the supply chain. However, the significant investment cost has been a major obstacle in the diffusion of traceability systems in the food industry. This study conducts a cost-benefit analysis of a RFID-enabled traceability system for a two-level perishable food supply chain, which consists of an upstream supplier and a downstream retailer. Consumer perceptions of food quality and safety are jointly considered when evaluating the value of a traceability system. The optimal decisions of the supply chain participants are derived in both centralized and decentralized systems, in terms of wholesale price, order quantity, price markdowns, and granularity level of the traceability system. The results show that a dynamic pricing policy supported by the traceability system could significantly reduce food waste and improve the retailer’s performance. We further propose a two-part tariff contract to coordinate the supply chain and to distribute benefits and costs of the traceability system between supply chain participants. This study demonstrates that a well-developed traceability system could significantly improve the supply chain performance and become a profitable investment for the food industry.