bluuebunny/crossref_metadata_2025 huggingface dataset:
Trigonometric identities via combinatorics
Authors: Bényi Beáta
Published: July 2019

In this paper we consider the combinatorial approach of the multi-angle formulas sin nΘ and cos nΘ. We describe a simple "drawing rule" for deriving the formulas immediately. We recall some theoretical background, historical remarks, and show some topics that is connected to this problem, as Chebyshev polynomials, matching polynomials, Lucas polynomial sequences.

Subject Classification: 05A19
Report of Meeting Researches in Didactics of Mathematics and Computer Sciences
Authors: Kónya E. , Szanyi Gy.
Published: July 2019

The meeting Researches in Didactics of Mathematics and Computer Sciences was held in Sturovo, Slovakia from the 1st to the 3th of February, 2019. It was organized by the Doctoral School of Mathematical and Computational Sciences of University of Debrecen. The 63 participants – including 17 PhD students – came from 7 countries, 22 cities and represented 36 institutions of higher and secondary education. There were 4 plenary, 42 session talks and 7 poster presentations in the program.
The Effect of Mnemonic Keyword Strategy Instruction on Vocabulary Retention of Students with Learning Disabilities
Authors: Al-Khawaldeh Mohammad Abedrabbu , Al-Khasawneh Fadi Maher
Published: July 2019

The present study aimed at investigating the effect of teaching mnemonic keyword strategy on vocabulary learning and retention among students with learning disabilities in Asir region, Saudi Arabia. The participants of this study included 40 students with learning disabilities studying in the ninth grade in one of the middle schools in Abha, Saudi Arabia. These students were equally distributed into two groups (20 students in the control group and 20 students in the experimental group). Vocabulary achievement test (pre-test, post-test, and delayed test) prepared by the researchers to collect the data of this study. Also, the researchers designed 10 lessons to teach the experimental group keyword strategy, while the control group did not receive such instruction. The results of the study showed that there were no statistically significant differences between the control group and the experimental group in the pre-test of vocabulary achievement, while statistically significant differences were found between both groups in the post-test of vocabulary achievement in favor of experimental group. Furthermore, there were statistically significant differences between both groups in the delayed test of vocabulary achievement in favor of experimental groups either.
Parents’ Attitudes Towards Exposing Their Children to English in Algerian Primary Education
Authors: Manseur Raouia , Negadi Mohammed Nassim
Published: July 2019

Along with the internationalisation of English, many parents demanded teaching English at the level of primary education in Algeria. The latter is commonly known as the second largest Francophone country where French is set as an official first foreign language in the Constitution and given priority over the international language which is set as the second foreign language. English has no clear status and is not given importance as French at the institutional and political level. The present study aims at identifying the attitudes of parents in South, West, East and North of Algeria towards exposing their children to English at the primary school level in the future. It also centers on specifying the reason why these parents want to expose their children to English at an early age. Qualitative and quantitative data were obtained through the use of questionnaires administered to 275 parents. The results revealed that positive attitudes were expressed by the parents from different areas of Algeria towards exposing their children to English as the language fosters their education and career and keep them abreast of the world developments. The current study represents an impetus for promoting English in Algeria and directing more attention and importance to it.
Deconstructing Post-Industrial American Ethos: Decline of Civility and Agony of Artists in Bellow’s Later Novels
Authors: Marrouchi Ramzi B. Mohamed , Azmi Mohd Nazri Latiff
Published: July 2019

This paper sheds light on the way Saul Bellow’s (1915–2005) intellectual protagonists deconstruct post-industrial American ethos which are dominated by the hegemony of capitalism and the values of democracy. These heroes are deeply immersed in European liberal education, the ‘Western Canon’ to recall Harold Bloom; however, they are marginalized, alienated, degraded and eventually rejected by the masses, junk culture, the dictatorship of the commonplace, and the unqualified individual. Bellow’s heroes predict that American culture will be overwhelmed by mass culture after the 1950s characterized by liberal democracy, [ultra capitalism], scientific experimentation, and industrialization, inspite of the high rate of higher education. Deploring a Derridean method of deconstructionism and a Foucauldian epistemic design, they archeologically question the roots of American cultural backdrop, that is, the massive industrialization in the late age of capitalism. They centralize art, humanities, classical books, morality, and religion; and marginalize science, commodity, consumerism, technology, and psychiatry. They deconstruct all makers of culture industry based on analysis, systemization, standardization, and not imagination and creativity. To achieve human and noble norms, they admit a noble life away from the vulgarity and barbarism of the age to cite Zygmunt Bauman. Special focus is on Herzog (1964), Mr. Sammler’s Planet (1970), Humboldt’s Gift (1975) and The Dean’s December (1982) for their common concern with this issue.
The Effects of Peer-Video Recording on Students’ Speaking Performance
Authors: Phi Ho Pham Vu , Thanh Hong Nguyen Thi
Published: July 2019

The purpose of the current study is to investigate whether peer video recording helps non-English majored college students enhance their speaking performance. Eighty students were selected and assigned to two groups: an experimental group and a control group. Peer video recording was presented to experimental students while no training was given to students in the control group in the same task-based approach. The data, collected based on a pre-posttest design, were analyzed to find out whether or not there were differences between two groups in terms of fluency, grammar, vocabulary, pronunciation and interactive communication. A questionnaire-based survey was also implemented to explore students’ attitudes on the treatment—peer video recording task-based approach. The study’s results revealed that students in the group treated with peer video recording task-based approach significantly outperformed those in the control group in terms of fluency, grammar, pronunciation and interactive communication while students’ vocabulary score remained after the treatment. In addition, the data obtained from the questionnaire indicated the experimental students had positive attitudes towards the peer video task-based approach. The results from the study provide grounds for some suggestions and recommendations for the teachers, the students as well as the teaching and learning speaking in Vietnam.
A Critical Discourse Analysis of ‘Fire and Fury: Inside the Trump White House’ by Michael Wolff
Authors: Aazam Fareeha , Baig Fatima Zafar , Baig Tanveer , Khaliq Shumaila , Azam Amna , Shamshad Sarah , Aslam Muhammad Zammad
Published: July 2019

Language plays a pivotal role in constructing identity and ideology. It shapes the people’s ideas and beliefs about specific perspectives. This research is mainly concerned with constructed ideologies through discourse. The present study is based on the book “Fire and Fury: Inside the Trump White House” written by Michael Wolff. The approach for present research is qualitative in nature and for analysis; different extracts are taken from the book. It adopts Fairclough’s (1992) three-dimensional model for analysis which includes textual, discursive practice and social practice analyses. The study reveals that a constructed ideology of Trump is portrayed in this book, in which, he is presented as ineligible and unfit person for the post of president of United States. Thus, in conclusion, the value of discourse in conveying the specific ideology cannot be underestimated.
English in Saudi Arabia: Status and Challenges in The Light of Prince Mohammad Bin Salman’s Vision 2030
Authors: Mukhallafi Turki Rabah Al
Published: July 2019

It is essential that educational institutions prepare students for the workforce especially when they are teaching English. In most Saudi Universities English Departments have been established in the Faculties of Arts, Languages, Education and Translation. However, recognition of the need for English in the Saudi educational system has not always been matched by acceptable educational outcomes. This is indicated by the inadequate number of well-trained and highly qualified teachers of English. Lack of recognition has hindered progress towards reaching the Kingdom Vision of 2030 that focuses on empowering citizens through reshaping the educational system and turning learners into skillful, educated and independent individuals. Therefore, this study examines the extent to which the KSA Vision 2030, in terms of teaching English as a foreign language in universities, is being implemented. A questionnaire was given to first year students at the Northern Border University, in Saudi Arabia. The questionnaire had two main sections, the first contained six general questions and the second section had 39 items covering very specific elements such as, Content & Teaching Methods, Evaluation & Assignments and Training & Professional Development. Analysing the data from the questionnaire was done using SPSS software.
The Implementation of Communication Strategies to Exchange and Negotiate Meanings in a Simulation of Job Interview
Authors: Mahardhika Steffie Mega , Rukmini Dwi , Faridi Abdurrachman , Mujiyanto Januarius
Published: July 2019

Students of English as a foreign language find it difficult to initiate a talk and exchange meanings in an interaction. They find it hard to break the iceberg and act by asking, commanding and answering to make the speakers or listeners’ intention fulfilled. As such they do not have medium to exchange experiences. The present study aims to explain the way meanings are negotiated and exchanged in the implementation of communication strategies in a simulation of a job interview. The subjects of this qualitative study are students of Indonesian Vocational College. The object of the study is the students’ utterances in the interview. Functional semantic reinterpretation of turn-constructional units of conversation analysis is implemented to explain how the students exchange and negotiate meanings. The findings suggest that the realization of exchange and negotiation of meanings is influenced by moves assigned to speech functions classes and the types of meanings implemented in the act of production and comprehension of the whole communication. The subjects of the present study can be categorized into productive speakers. The students negotiate feelings and attitudes more than that of the content of the proposition.
Health Status of Patients Who Suffer from COPD, Asthma and Acute Respiratory Diseases in Greece in the Era of Economic Crisis
Authors: Koutsimpou Panagiota , Gourgoulianis Konstantinos , Economou Athina , Raftopoulos Vasilios
Published: July 2019

Introduction: In Greece, the last decade, the harsh austerity measures, that were enacted, had a huge impact on patients’ suffering from chronic diseases. The aim of the current study was to assess the financial ability of the patients suffering from an acute or chronic respiratory disease hospitalized in an urban pulmonary university clinic in central Greece and to explore the correlation of their health status with their financial ability. Material and methods: An anonymous and self completed questionnaire was administered in the Greek language. It included the SF-36 and the EQ-5D-3L scale that are validated in the Greek language and a new scale (Financial Ability Scale, FAS) that has been developed and validated. Results: Half of the patients (55%) suffered from a chronic respiratory disease (64% COPD and 36% asthma) while 45% from an acute respiratory disease (pneumonia). Those suffering from COPD were mainly males (88.7%), over 65 years old (74.6%), with primary education or some primary (83.1%), covered by public health insurance (95.8%) and living with their families (91.5%). With the exception of anxiety/depression, the more the problems with mobility, self-care, usual activities and pain/discomfort, the worse the financial ability of the participants. Those >65 years old, with fewer years of education, suffering from a chronic disease and those having a better experience from the current hospitalization, had a statistically significant lower VAS. Those aged >65 years old reported a lower financial ability (26.00 ± 9.41 vs. 29.24 ± 10.63) as well as those with a chronic respiratory disease (24.18 ± 7.90 vs. 30.57 ± 11.98). The years lived with the disease correlated statistically and negatively (r = −0.232; p = 0.001) with the total financial ability score. Conclusions: Economic crisis in Greece, affected COPD burden in terms of financial ability, and quality of life.
Analysis of the FIDIC arbitration clause in the light of international jurisprudence
Authors: Dąbrowska Agnieszka
Published: July 2019

The aim of the paper is to present the subject matter related to the procedure of resolving disputes arising in connection with implementation of agreements concluded on the basis of contract models published by the international federation FIDIC in 1999 Red and Yellow Book. The intention of the authors of the FIDIC templates was to apply an autonomous multistage procedure (the so-called multi-step clause) for resolving disputes based on arbitration without taking the matter to court. However, the application of the procedure proposed by FIDIC raises controversies of legal and factual nature. The problems concern, in particular: the nature, immediate enforceability, contestability of decisions issued by the Dispute Adjudication Board (DAB) and methods of their reinforcement. Other issues concern the absence of ‘standing’ or ‘full-term’ Adjudication Board and the right to arbitration in case when a party violates the internal dispute resolution procedure described in the contract, both for reasons dependent on and beyond its control. The publication is of legal and comparative nature and contains the analysis of related jurisprudence of civil law systems of selected countries.
The structural patterns of Lithuanian affixes
Authors: Kazlauskienė Asta , Cvilikaitė-Mačiulskienė Jurgita
Published: July 2019

The aim of this research is to identify the main structural patterns of affixes of Lithuanian inflective words, their productivity and frequency. We present a survey of the structural diversity and productivity of these morphemes rendered in The Dictionary of Modern Lithuanian and in The Grammar of Modern Lithuanian. The frequency data was collected from The Database of the Morphemics of the Lithuanian Language. The morpheme analysis has revealed the following tendencies: 1) while prefixes are always monosyllabic, suffixes and flexions can vary from non-syllabic to trisyllabic, 2) within these morphemes, consonant clusters are not frequent. Prefixes in Lithuanian can have C0-2VC0-2 structure. The most productive and frequent pattern is C1V. Suffixes have structures C1-2, C0-2V(W)C0-3 and C0-1VC1-2VC0-2. The most productive are VC1 of nominal words and C1, VC0-1 verbal suffixes. In usage, VC1 suffixes of nominal words and V, C1 as well as VC1 verb patterns dominate. Flexions can have the following structures: C1, VC0-2, VC1VC0-1 or VC1VC1VC0-1. The most productive patterns are simple VC0-1, which also dominate the usage. The analysis has revealed the influence of a root on the structure of other morphemes. The most typical root structure C1-2VC1-2 entails a C1V structure prefix on the one side, while on the other - a suffix or a flexion with VC0-1 structure. The result of such combination is quite a consistent a consonant + a vowel + a consonant (+ a consonant) + a vowel + a consonant (+ a consonant) + a vowel (+ a consonant) chain: C1V + C1-2VC1-2 + VC0-1.
Conceptual Metaphors in Donald Trump’s Political Discourse: Politics Domain (2018)
Authors: Linkeviciute Vilma
Published: July 2019

The object of this research is conceptual metaphors in Donald Trump’s political discourse (2018) whichis aimed at his own positioning as an extremely positive and beneficial president who will “make America great again“. Furthermore, he implicitly and explicitly treats his opponents- the Democrats and previous governments as enemies who are guilty for all the problems and troubles in the USA.

Linguistic expressions of the following conceptual metaphors POLITICS IS WAR, POLITICS IS A JOURNEY, POLITICS IS A RACE, POLITICS IS A CRIME, POLITICS IS LOVE, POLITICS IS FRIENDSHIP prevail in Donald Trump’s political discourse. There are some expressions of conceptual metaphors, such as POLITICS IS A GAME, POLITICS IS WATER and POLITICS IS SLEEP in Trump’s political discourse.

The majority of these conceptual metaphors are based on the opposition I/we–they, where I stands for the President Trump, we are the members of the Republican Party and they are introduced as the Democrats.

Conceptual metaphor has an evaluative potential in Trump’s political discourse. Evaluations, expressed through linguistic metaphors and belonging to the same conceptual metaphor, may differ and acquire both positive and negative connotations.
Les idées linguistiques de Lucien Tesnière. Première partie
Authors: Bidaud Samuel
Published: July 2019

Nous nous intéressons dans cette contribution, publiée en deux parties, aux idées linguistiques de Lucien Tesnière (1893-1954). Si ce dernier est essentiellement connu pour la syntaxe structurale et pour certains concepts-clés comme ceux de valence ou de translation, en revanche son œuvre est beaucoup plus variée que ce à quoi on la réduit habituellement. Tesnière s’est occupé, en effet, à la fois de linguistique théorique, mais aussi de linguistique appliquée, au sens large du terme, puisqu’il a toujours développé un intérêt majeur pour l’enseignement des langues et pour la géographie linguistique. Il s’est en outre tourné vers la traduction et l’analyse littéraire, en traduisant et commentant l’œuvre du poète slovène Oton Joupantchitch. L’article qui suit est consacré à la partie la plus théorique de la linguistique de Tesnière, sur laquelle nous nous penchons à partir de quatre points : la réhabilitation de la synchronie, la syntaxe structurale et son originalité, la typologie des langues et l’histoire des langues et du langage. La seconde partie de cette contribution, qui paraîtra dans le prochain numéro de Studies about languages, sera quant à elle consacrée à l’aspect plus « pratique » de la linguistique tesnièrienne, bien que celui-ci ne puisse pas être séparé clairement de la théorie, et se focalisera sur la didactique des langues, la géographie linguistique, la traduction et l’analyse littéraire.
Entre el derecho a la educación inclusiva y la realidad: análisis del III plan de acción para personas con discapacidad de la comunidad de Madrid y propuestas
Authors: Simón Rueda Cecilia , Fernández-Blázquez María Luz de los Milagros , Pérez-de la Merced Helena , Márquez Vázquez Carmen , Echeita Sarrionandia Gerardo , Moreno Hernández Amparo
Published: July 2019

RESUMENLa presente investigación se incluye en un proyecto más amplio denominado “Madrid sin barreras: discapacidad e inclusión social” cuyo principal objetivo es analizar el éxito del III Plan de Acción para Personas con Discapacidad 2012-2015 de la Comunidad de Madrid y contribuir a la elaboración de un marco para un futuro Plan. La finalidad del estudio que aquí se presenta es conocer la opinión de profesionales de diferentes ámbitos educativos sobre este Plan, así comoanalizar las acciones que, desde su punto de vista, son prioritarias para facilitar la transformación de los centros educativos para ser más inclusivos. Un referente fundamental del trabajo ha sido el Comentario nº 4 al artículo 24 de la Convención sobre los derechos de las Personas con Discapacidad (UN.CDP, 2016). Se ha contado con la participación de 103 profesionales de la Comunidad de Madrid, que han respondido a un cuestionario con preguntas abiertas y cerradas. Los resultados muestran los aspectos positivos y negativos del Plan percibidos por los profesionales (difusión, coherencia y aportación a un sistema educativo más inclusivo). Las propuestas de acción formuladas más inmediatas se relacionan con aspectos vinculados a la normativa, la transformación de los centros y la sensibilización social.ABSTRACTThis research is included in a larger project called "Madrid without barriers: disability and social inclusion" whose main objective is to analyze the III Plan of Action for Persons with Disabilities 2012-2015 in the Community of Madrid and contribute to the development of a future Plan. The objective of the study presented here is to collect the opinions of professionals from different educational areas regarding this III Plan, as well as to highlight the actions that, from their point of view, are priorities to facilitate the transformation of schools so as to be more inclusive. A fundamental reference for this work is General comment Nº. 4, Art. 24 of the Convention on the Rights of Persons with Disabilities (UN.CDP, 2016). 103 professionals from the Community of Madrid have participated in this study, and they have answered a questionnaire with open and closed questions. The results show the positive and negative aspects of the Plan perceived by these professionals (e.g. related to their dissemination, coherence and contribution to a more inclusive education system) and the action proposals related to the regulations, the support given to the centres and social awareness.
Cyberbullying among Emerging Adults: Exploring Prevalence, Impact, and Coping Methods
Authors: Oblad Timothy
Published: July 2019

Cyberbullying has been a concern among adolescents, parents and educators for years for its seemingly boundless reach and potential harm it can cause. Aggressors are often masked with anonymity and targeted individuals may feel powerless over what others do online. While such issues and concerns are prevalent among adolescent ages, college students are not invulnerable from parallel experiences. In the US, Macdonald and Roberts-Pittman (2010) found less than ten percent of college students were cyberbullies but over one-fifth reported as cybervictims. This study explored prevalence of cyber victimization and perpetration as well as evidence of damaging effects and impact. Among the college student sample of 1,921, participants were 18-25 years (mean age 20.1), just over half Caucasian (55.5%) and female (67.9%). Results indicated victimization most often occurred through phones (19.9%) and social networks (20.4%). For perpetration, prevalence was low across all platforms, however phone use was the preferred means of attacking others (6.5%). Low self-esteem was a significant predictor for victimization and perpetration. For males only, social capital was a significant predictor of victimization. Future directions and recommendations for follow-up studies are discussed as well as the importance of this study in relation to college student activities and behaviors.
Qualidade das águas superficiais da universidade federal de campina grande: riscos e benefícios para reúso
Authors: Andrade Lazaro Ramom dos Santos , Araújo Sérgio Murilo Santos , França Kepler Borges , Pearson Howard William
Published: July 2019

Diante da crise hídrica enfrentada na cidade, a Universidade Federal de Campina Grande vem enfrentando dificuldades para irrigar as áreas verdes do campus, no entanto a instituição possui duas lagoas que podem ser utilizadas para esta finalidade. O presente trabalho teve como objetivo analisar a qualidade dessas águas para avaliar seu potencial de reúso nas áreas verdes do campus. A pesquisa foi realizada no ano de 2016, entre os meses de março a outubro, na qual foi avaliada a qualidade das águas por meio de sonda multiparâmetros e análises físico-químicas e microbiológicas. Os resultados foram comparados aos valores estabelecidos pela Resolução no 357 de 2005 do Conselho Nacional do Meio Ambiente (CONAMA), bem como utilizados para calcular o Índice de Qualidade da Água (IQA). O IQA da uma lagoa 1 foi classificado entre ‘ruim’ e ‘péssimo’ e o da outra lagoa 2 como ‘péssimo’, em todos os meses de estudo. Através dos resultados obtidos, foi constatado que as águas superficiais da UFCG são impróprias para irrigação sem tratamento, uma vez que os efluentes que contribuem com a recarga desses corpos hídricos estão deteriorando sua qualidade e proporcionando alterações dos parâmetros físico-químicos e microbiológicos do meio. Os resultados deste estudo podem fornecer informações valiosas sobre os níveis prováveis de risco microbiológico da utilização de tais águas superficiais nas cidades, principalmente no semiárido do Brasil e dê uma indicação do grau de tratamento necessário.
Avaliação do ensino híbrido pelos professores no ensino superior nos cursos de licenciatura
Authors: Silva Débora Lira da , Santos Dayane Rodrigues dos , Souza Daniela Silva , Sousa Adriana Martins de , Nunes Bruna Alves , Lima Ana Paula Barbosa , Sales Nívia Alves , Carvalho Aluísio Vasconcelos de , Fernandes Neto Izidorio Paz
Published: July 2019

A educação a distância tem crescido no ensino superior, para conhecer de que forma acontece o ensino híbrido é necessário compreender as dificuldades, os avanços e os desafios apresentados pelos seus envolvidos. Este artigo tem como objetivo compreender os critérios utilizados pelos professores de disciplinas presenciais e online e nas avaliações acadêmicas durante o processo educativo semestral. Pode-se observar que os professores usam critérios diferenciados para avaliar seus alunos nas diferentes modalidades, porém é perceptível que o ensino híbrido tem sido mais eficiente que o ensino totalmente a distância. O processo educativo deve partir de ambas as partes uma vez que a relação entre o professor e aluno, por meio do ensino EAD, muitas vezes só acontece por meio do computador já que o professor atua como mediador do conhecimento.
Percepção ambiental acerca do Chrysocyon brachyurus (Lobo-Guará) no município Guaraí (TO)
Authors: Luz Ineide Ferreira , Sene Jaciara Silva , Carvalho Aluísio Vasconcelos de
Published: July 2019

O Chrysocyon brachyurus, conhecido popularmente como Lobo-guará, é um dos canídeos mais exuberantes da fauna brasileira encontrado em todo o território do bioma cerrado. Atualmente está na lista de espécies ameaçadas de extinção segundo o IUCN devido a devastação do seu habitat, surgimento de doenças e lendas. Com grande importância local, o animal é responsável pelo nome do município de Guaraí, no Estado do TO, embora o crescimento urbano e das áreas agrícolas contribuíram para a drástica redução da estrutura populacional da espécie na região. Este trabalho teve como intuito buscar as raízes históricas do município Guaraí (TO) e seu vínculo com o Lobo-guará através de análises de percepções dos moradores do município. Adotou-se a abordagem fenomenológica para análise dos discursos e estatística descritiva por meio de entrevistas. Foi observado uma ligação entre os moradores do município de Guaraí e suas raízes históricas aliadas ao Lobo-guará, a construção de lendas locais passadas por gerações e a preocupação na preservação da espécie na região.
Modelo de análise do perfil do consumidor de produtos orgânicos para definição da estratégia de marketing
Authors: Ferreira Paulo Eduardo Santos , Cavalcanti Filho André Marques
Published: July 2019

O objetivo deste estudo é propor um modelo de análise que identifique o perfil do consumidor de alimentos orgânicos e,com o resultado encontrado, traçar a estratégia de marketing direcionada para este público consumidor, uma vez que na perspectiva atual do consumidor em optar por alimentos saudáveis se faz necessário entender que fatores determinam esta opção. A sua importância está associada às decisões quanto à definição do perfil do público consumidor desses produtos para que seja formulada a estratégia de marketing adequada. O modelo proposto está dividido em duas fases: quantitativa e qualitativa. Na primeira fase definiram-se as variáveis, os dados foram coletados e as análises de regressão e casualidade realizadas, a fim de encontrar o perfil do consumidor de alimentos orgânicos. Uma vez identificado o perfil, segue-se com a segunda fase, a análise do marketing para o perfil definido e quais as ações devem ser realizadas para melhor atender a esse público consumidor. Neste contexto, consideraram-se as variáveis renda e nível de formação educacional do consumidor como determinantes na intenção de compra/consumo de alimentos orgânicos, e à área plantada de alimentos orgânicos, um proxy representando o consumo de alimentos orgânicos. Assim, buscou-se identificar a existência de correlação entre o consumo e as variáveis explicativas. Obteve-se como resultado a correlação (R) 0,813, que representa um alto grau de relação entre as variáveis e o coeficiente de determinação (R²) 0,661, representando o poder explicativo do modelo da regressão. Além disso, aplicou-se o modelo de causalidade em que se verificou a casualidade bilateral entre as variáveis. Dessa forma, o modelo responde à definição do perfil do consumidor de produtos orgânicos. Após definir qual o perfil do consumidor de alimentos orgânicos, tendo como base as variáveis limitadas pelo estudo, o próximo passo determinado pelo modelo é a formulação da estratégia de Marketing destinada ao público alvo identificado.
L’expression discursive des mondes subjectifs du raccrochage scolaire
Authors: Guibert Pascal , Amar Florence
Published: July 2019

Notre propos vise à comprendre ce que disent les décrocheurs à propos de leur parcours dans le décrochage. L’analyse de leurs discours a pour objectif de saisir « l’expression individuelle des mondes subjectifs » du raccrochage scolaire et porte sur l’explicitation des couples organisateurs des récits à trois niveaux : séquences, actants et arguments. Grâce à cette méthode, nous montrons que, contrairement aux idées reçues, la période qui suit le décrochage scolaire n’amène pas uniquement une perte de repères, de cadres et un « laisser-aller », mais est aussi marquée par la construction de mondes subjectifs permettant le raccrochage.
Entre école obligatoire et formation postobligatoire. Une approche socioculturelle de la trajectoire scolaire pour comprendre les dynamiques d’accrochage scolaire
Authors: Liechti Léonie
Published: July 2019

Cette contribution propose d’examiner les dynamiques d’accrochage scolaire à travers l’étude de cas d’une élève inscrite durant une année dans un dispositif suisse de soutien à la transition entre école obligatoire et formation postobligatoire. Dans une visée compréhensive et en adoptant une approche psychoculturelle du développement, cette contribution s’intéresse à l’évolution du sens que l’élève attribue à son expérience scolaire et à son orientation vers le dispositif, tout en considérant la trajectoire scolaire et l’environnement de l’établissement dans lesquels sa situation s’inscrit. Les données utilisées sont issues de quatre entretiens semi-directifs menés avec l’élève (trois durant l’année scolaire 2014-2015 alors qu’elle a 16 ans et fréquente le dispositif, et un en 2017 alors qu’elle a 18 ans). Une analyse biographique de la trajectoire révèle d’abord un désengagement scolaire de l’élève, entraîné par la rupture que provoque l’attribution, par l’établissement d’enseignement, d’un profil scolaire faible à ses 12 ans, puis un réinvestissement scolaire durant son année dans le dispositif. De plus, l’étude du sens que l’élève élabore autour de son expérience scolaire durant l’année de transition révèle l’importance de l’élaboration de sens dans l’accrochage scolaire de l’élève.
Politique du son et des sentiments
Authors: Artiss Tom , Paré-Beauchemin Sophie , Fournier Robert
Published: July 2019

Cet article traite de questions liées à la représentation et à l’expression du soi dans une communauté inuit du Labrador en se basant sur trois chansons de style country composées localement et fréquemment demandées et diffusées sur les ondes de la radio communautaire. La motivation politique, insuffisamment mise en valeur, sous-jacente aux « structures de sentiment » de Raymond Williams permet de corriger le déséquilibre discursif qui privilégie les formes « authentiques » par rapport aux formes euroaméricaines inuit. Mesurer la culture en termes d’expérience vécue plutôt qu’en termes de formes symboliques distinctes, comme le propose Williams, constitue la base pour identifier le substrat de continuités affectives qui perdurent alors que des formes plus tangibles s’érodent ou disparaissent. Des affectivités inuit distinctes qui s’attachent aux formes musicales non inuit sont à leur tour diffusées et partagées par la radio. Dans le paysage radio auditif-affectif qui en résulte, la portée affective d’une chanson est convertie en structures de sentiment sonore par l’interaction réflexive entre subjectivités émotionnelles individuelles et collectives.
Impact of deforestation on earthworm populations in Guyana's rainforests
Authors: Persaud Reshma
Published: July 2019

Changes to the landscape of tropical rainforests are potential instigators in population changes experienced by earthworms, which are integral biological components of almost all terrestrial ecosystems. A comparative analysis of earthworm populations was done in the rainforests of Guyana to investigate the impact of deforestation on earthworm populations. Earthworms were sampled in pristine forest sites and deforested sites, which yielded 31 species belonging to 10 families. Deforested sites suffered significantly from low abundance, density, diversity and richness. The population data among the two types of sites were all of statistical significant difference, with the exception of epigeic abundance. Earthworm abundance and richness were found to be significantly negatively correlated to deforestation. Anecic ecotype were the most affected as none were recorded in deforested sites while P. corethrurus was found to be the most abundant species in the deforested sites.
A novel computational approach to the silencing of Sugarcane Bacilliform Guadeloupe A Virus determines potential host-derived MicroRNAs in sugarcane (Saccharum officinarum L.)
Authors: Ashraf Fakiha , Ashraf Muhammad Aleem , Hu Xiaowen , Zhang Shuzhen
Published: July 2019

Sugarcane Bacilliform Guadeloupe A Virus (SCBGAV, genus Badnavirus, family Caulimoviridae) is an emerging, deleterious pathogen of sugarcane which presents a substantial barrier to producing high sugarcane earnings. The circular, double-stranded (ds) DNA genome of SCBGAV (7.4 Kb) is composed of three open reading frames (ORF) that replicate by a reverse transcriptase. In the current study, we used miRNA target prediction algorithms to identify and comprehensively analyze the genome-wide sugarcane (Saccharum officinarum L.)-encoded microRNA (miRNA) targets against the SCBGAV. A total of 28 potential mature target miRNAs were retrieved from the miRBase database and were further analyzed for hybridization to the SCBGAV genome. Multiple computational approaches—including miRNA-target seed pairing, multiple target positions, minimum free energy, target site accessibility, maximum complementarity, pattern recognition and minimum folding energy for attachments— were considered by all algorithms. Only 4 sugarcane miRNAs are selected for SCBGAV silencing. Among those 4, sof-miR396 was identified as the top effective candidate, capable of targeting the vital ORF3 which encodes polyprotein of the SCBGAV genome. miRanda, RNA22 and RNAhybrid algorithms predicted hybridization of sof-miR396 at common locus position 3394. A Circos plot was created to study the network visualization of sugarcane-encoded miRNAs with SCBGAV genes determines detailed evidence for any ideal targets of SCBGAV ORFs by precise miRNAs. The present study concludes a comprehensive report towards the creation of SCBGAV-resistant sugarcane through the expression analysis of the identified miRNAs.
Filosofia, política e cosmologia: ensaios sobre o renascimento
Authors: Pinto Fabrina Magalhães , Benevenuto Flávia
Published: July 2019

O Renascimento foi sobretudo um período de grande eclosão do pensamento e da criatividade humanas desde a ciência e as várias artes - pintura, arquitetura, escultura - até a filosofia, a poesia, o pensamento político e o jurídico. Foi também um período de grande transformação na sociedade com o surgimento de novos modelos de organização política e econômica que trouxeram grande dinamismo a algumas regiões da Europa e que inclui as navegações no Novo Mundo, que tiveram além do genovês Cristóvão Colombo, o florentino Américo Vespúcio como um de seus protagonistas. O Renascimento é um período multifacetado que produziu obras inovadoras nos campos mais diversos desde o Corpus Hermeticum até O Príncipe de Maquiavel, desde a Capela Sistina de Michelangelo até as máquinas bélicas de Leonardo Da Vinci. No presente livro Filosofia, Política e Cosmologia: Ensaios sobre o Renascimento, organizado por Fabrina Magalhães Pinto e Flávia Benevenuto, e incluindo textos de alguns dos mais importantes especialistas na área no Brasil e no exterior, temos uma significativa contribuição para o estudo do Renascimento precisamente em algumas dessas múltiplas facetas. Essas contribuições, que refletem as pesquisas realizadas por seus autores, assim como os debates que vêm desenvolvendo regularmente, se concentram em três grandes linhas que se interpenetram: a política e a ética; a linguagem; e a cosmologia.
Anterior CNS expansion driven by brain transcription factors
Authors: Curt Jesús Rodriguez , Yaghmaeian Salmani Behzad , Thor Stefan
Published: July 2019

During CNS development, there is prominent expansion of the anterior region, the brain. In Drosophila, anterior CNS expansion emerges from three rostral features: (1) increased progenitor cell generation, (2) extended progenitor cell proliferation, (3) more proliferative daughters. We find that tailless (mouse Nr2E1/Tlx), otp/Rx/hbn (Otp/Arx/Rax) and Doc1/2/3 (Tbx2/3/6) are important for brain progenitor generation. These genes, and earmuff (FezF1/2), are also important for subsequent progenitor and/or daughter cell proliferation in the brain. Brain TF co-misexpression can drive brain-profile proliferation in the nerve cord, and can reprogram developing wing discs into brain neural progenitors. Brain TF expression is promoted by the PRC2 complex, acting to keep the brain free of anti-proliferative and repressive action of Hox homeotic genes. Hence, anterior expansion of the Drosophila CNS is mediated by brain TF driven ‘super-generation’ of progenitors, as well as ‘hyper-proliferation’ of progenitor and daughter cells, promoted by PRC2-mediated repression of Hox activity.
Trans-toxin ion-sensitivity of charybdotoxin-blocked potassium-channels reveals unbinding transitional states
Authors: Moldenhauer Hans , Díaz-Franulic Ignacio , Poblete Horacio , Naranjo David
Published: July 2019

In silico and in vitro studies have made progress in understanding protein–protein complex formation; however, the molecular mechanisms for their dissociation are unclear. Protein–protein complexes, lasting from microseconds to years, often involve induced-fit, challenging computational or kinetic analysis. Charybdotoxin (CTX), a peptide from the Leiurus scorpion venom, blocks voltage-gated K+-channels in a unique example of binding/unbinding simplicity. CTX plugs the external mouth of K+-channels pore, stopping K+-ion conduction, without inducing conformational changes. Conflicting with a tight binding, we show that external permeant ions enhance CTX-dissociation, implying a path connecting the pore, in the toxin-bound channel, with the external solution. This sensitivity is explained if CTX wobbles between several bound conformations, producing transient events that restore the electrical and ionic trans-pore gradients. Wobbling may originate from a network of contacts in the interaction interface that are in dynamic stochastic equilibria. These partially-bound intermediates could lead to distinct, and potentially manipulable, dissociation pathways.
Seasonal denning behavior and population dynamics of the late Pleistocene peccaryPlatygonus compressus(Artiodactyla: Tayassuidae) from Bat Cave, Missouri
Authors: Woodruff Aaron L. , Schubert Blaine W.
Published: July 2019

The late Pleistocene faunal assemblage from Bat Cave, central Ozarks, Missouri provides an opportunity to assess specific aspects of behavior, ecology, and ontogeny of the Rancholabrean speciesPlatygonus compressus. All identifiable elements referable to this taxon were catalogued and examined, and a minimum number of individuals of 73 was determined for the sample. Evidence of seasonal behavioral patterns are reported for the first time in a fossil peccary. Maturation of individuals was assessed using the tooth eruption sequence and occlusal wear patterns for all tooth-bearing mandibular elements and isolated lower dentition. Approximate ages were established through comparison with the extant collared peccary. The presence of distinct, developmentally non-overlapping age groups suggests thatP. compressuswas seasonally present at the Bat Cave locality, with the cave functioning as seasonal shelter in which individuals would occasionally die. The study also suggests the peccaries engaged in synchronous, seasonal breeding behaviors. Demographic assessment of the Bat Cave peccary population suggests that younger individuals formed the bulk of the population at a given time with progressively older individuals becoming scarcer until the age of about 10 years, which matches the typical demographic patterns and life expectancy of extant peccaries.
The prognostic impact of age in different molecular subtypes of breast cancer: a population-based study
Authors: Dai Dongjun , Zhong Yiming , Wang Zhuo , Yousafzai Neelum Aziz , Jin Hongchuan , Wang Xian
Published: July 2019

Background

The aim of current study was to use competing risk model to calculate the potential differences that age played in the prognosis of different breast cancer subtypes.

Methods

The cohort was selected from Surveillance, Epidemiology, and End Results (SEER) program. The cumulative incidences of death (CID) was assessed for breast cancer caused deaths and other causes of mortality. The multivariate Cox proportional hazards regression model and the multivariate subdistribution hazard (SH) model were used to evaluate the prognostic value of age in different breast cancer subtypes.

Results

We involved 33,968 breast cancer patients into our cohort. We found older patients had worse overall survival (OS) than young patients in hormone receptor positive and human epidermal growth factor receptor 2 positive breast cancer (HR+/HER2+) (≥40 vs. <40, HR = 2.07, 95% CI [1.28–3.35], p < 0.05). However, when we used competing risk model, we found young age was an independent risk factor only for triple negative breast cancer (TNBC) (≥40 vs. <40, HR = 0.71, 95% CI [0.56–0.89], p < 0.05). No association was found in other groups.

Conclusion

Our research was currently the largest sample size study and the first competing risk model-based study on the prognostic association between age and different breast cancer subtypes. We found <40 years patients had worse breast cancer specific survival (BCSS) than older patients in the TNBC subtype.
Effect of Different Levels of Nitrogen and Filter Mud on Tomato Vegetative Growth Yield and Yield Components
Authors: Abuzaid Abuzaid O. , Osman Mohamed S. , Elsiddig Elfatih A. M. , Abd-Elrahim Gamal Eldin Eltayeb
Published: July 2019

Aim: This study aimed to evaluate the   effect of different levels of nitrogen and filter mud cake applications on vegetative growth and yield on tomato cultivar "Castle Rock".

Place and  Duration of Study: Field experiments were conducted during two successive winter seasons 2015/2016 and 2016/2017 at the experimental farm, Faculty of Agriculture and Natural Resources, University of Bakht Alruda, Ed Duiem, Sudan.

Methodology: Treatments included three Nitrogen levels (0, 43 and 86 kg N/ ha) and three filter mud levels (0, 2 and 4 ton/ ha). Urea (46%N) was used as source of nitrogen and applied after fifteen days from sowing. Filter mud cake was applied one month before sowing. The treatments were arranged in a randomized complete block design with three replications.

Results: Results showed significant differences among N treatments in tomato vegetative growth, yield and yield components in the two seasons. The 86 kg N/ ha showed the highest vegetative growth yield and yield components compared to control. The filter mud application at both rates showed significant increase in the most vegetative growth parameters, yield and yield components compared to the control in the two seasons. The combination of N and filter mud resulted in significant increase in vegetative growth and yield components, the highest values were obtained by application of 86 kg/ha combined with 4 ton filter mud /ha.

Conclusion: Considering the present study it can be concluded  that the application of 86 kg/ha combined with 4 ton filter mud /ha  is the best level in terms of maximum vegetative growth, yield and yield components of Castle Rock tomato cultivar.
Drivers of Conflict between Pastoralists and Wildlife Conservation Authority: A Case of Muhesi Game Reserve
Authors: Kiondo Khalfan J. , Nachihangu Jovine , Mgumia Fadhili
Published: July 2019

Conflict between pastoralist and wildlife in Tanzania becomes the issues of discussion by different stakeholders at different levels, this study state general objective that assesses the effects of conflict between pastoralist and wildlife conservation in Muhesi Game Reserve (MGR). Data collection methods included interview, documentary review, Focus Group Discussion (FGD)) and observations. A sample of 98 respondents was surveyed. Analysis involved descriptive and inferential statistics (chi square) for quantitative data and content analysis for qualitative data. The study revealed that, the main existing conflict was pastoralist-wildlife conservation conflict apart of other conflicts. Results further revealed that major causes of the conflict includes grazing cattle in game reserves, shortage of land for grazing, large number of cattle, low knowledge in relation to wildlife conservation and legal framework related to the management of wildlife. Study revealed that, conflict between pastoralist and wildlife conservation posed effects to the surrounding community, wildlife game reserve, pastoralists and wildlife managers. In community, it leads deterioration of relationship among the community members, wildlife managers and communities surrounding the villages. Pastoralist reported loss of their life also cattle through forfeitures and death. In game reserves, a mainly effect revealed was decrease of ecosystem functions. To address the conflict and its effects, conservation education and population controls are taken into account. However, there are challenges facing conflict management includes scarcity of resources, cultural barriers, corruption and political interest. Study concluded that pastoralist-wildlife conflicts exist and should not be ignored. The study recommends that, in order to manage the conflict and their effects; the Central Government in collaboration with relevant stakeholders should establish proper village land use plan which will accommodate different land users, also controlling immigrant of pastoralist.