bluuebunny/crossref_metadata_2025_split huggingface dataset:
OneUp: Supporting Practical and Experimental Gamification of Learning
Authors: Dicheva Darina , Irwin Keith , Dichev Christo 
Published: September 2018

Gamification of education is still evolving. It lacks systematic studies assessing its effect in different learning contexts. Creating gamified courses is still difficult, since there is a lack of sufficient understanding of how to gamify learning and appropriate software support is missing. As a response to these challenges, we developed OneUp ̶ a customizable platform aimed at facilitating the process of gamifying academic courses and enabling contextual studies on educational gamification. In this paper we rationalize our approach to building OneUp and present the underlying principles and motivations guiding its design. We also describe the platform functionality which includes support for integrating game design elements in learning activities, creating dynamic problems, and visualizing student performance and progress. At the end, we present a usability study of the platform and the assessment results from an end user perspective.
Raciocínio Proporcional: um estudo sobre as estratégias de estudantes de pedagogia ao resolverem diferentes situações
Authors: Garcia Silva Angélica Fontoura , Candido Alexsandro Soares , De Souza Vera Helena Giusti 
Published: September 2018

Este artigo teve o objetivo de investigar estratégias utilizadas por 30 alunas de um curso de pedagogia de uma universidade particular da grande São Paulo, ao resolverem situações de estruturas multiplicativas, sobretudo situações de valor omisso e comparação. A coleta de informações se deu por meio da aplicação de um questionário – de caráter diagnóstico –, visando identificar estratégias utilizadas pelas participantes para resolverem as duas situações apresentadas. A análise dos dados fundamentou-se em teorias que versam sobre as estruturas multiplicativas e seu ensino. As respostas do grupo indicaram haver melhor comprensão deste grupo investigado em situações de comparação – 86,67% e de valor omisso, 70%. A estratégia utilizada pela maioria das alunas investigadas nas situações de comparação foi a busca da taxa unitária, e os erros ocorreram por concepções equivocadas sobre a determinação de quociente da divisão ou sobre a relação de ordem de números racionais na representação decimal. Já nas situações que envolvem valor omisso, além da taxa unitária, as participantes também se utilizaram do produto cruzado, e os equívocos se deram nas resoluções que se utilizaram do raciocínio aditivo. Nesse grupo nenhum participante [1]se utilizou de estratégias funcionais e escalares.
EFFICACY OF CATHETER ABLATION FOR PERSISTENT ATRIAL FIBRILLATION IN PATIENTS WITH DIABETES MELLITUS PRESENT WITH TACHY-BRADY SYNDROME
Authors: Archakov E. A. , Batalov R. E. , Usenkov S. Yu. , Khlynin M. S. , Smorgon A. V. , Popov S. V. , Babokin V. E. 
Published: September 2018

Aim. To estimate the efficacy of catheter ablation in patients with type 2 diabetes mellitus (T2D) present with atrial fibrillation and sick sinus syndrome (SSS) undergoing permanent pacemaker implantation.Methods. 56 patients (34 females) with persistent AF and SSS were enrolled in the study. The mean age of patients was 67.7±10.7 years. Dual chamber cardiac pacemaker with remote monitoring function were implanted in all patients. All the patients were assigned to two groups: Group 1 comprised 31 patients aged 67.3±9.6 years, and Group 2 comprised 25 patients aged 72.6±9.9 years, including 22 (39.2%) diabetic patients. 2-3 days after pacemaker implantation, group 1 patients underwent intracardiac electrophysiology study and RFA of the pulmonary vein ostia, mitral isthmus and the left atrial posterior wall. Group 2 patients received antiarrhythmic drug therapy. Results. 3 patients (9%) in Group 1 had recurrent AF within the 6-month follow-up. The efficacy of the RFA for AF was 55% (n = 17) 1 year after the indexed hospitalization. 8 patients had short paroxysmal attacks which gradually lessened and stopped after. 5 patients (21%) in Group 2 did not have any AF paroxysms within the 1-year follow-up (Х2 = 5.52, р = 0.02). All these patients received amiodarone as antiarrhythmic drug therapy, whereas the others had paroxysmal attacks. Frequent attacks in 10 patients (40%) led to a change in antiarrhythmic drug use. Hospital readmission rates for AF were 16% and 52%, respectively (Х2 = 4.15, р = 0.04). The impact of atrial and ventricular stimulation on the development of recurrent AF was statistically insignificant (atrial stimulation – X2 = 0.01, cc = 1, p = 0.90; ventricular stimulation – X2 = 0.15, cc = 1, p = 0.69). None paroxysmal attacks were recorded in 10 diabetic patients (45%) after the RFA within the 1-year follow-up.Conclusion. Catheter ablation for persistent AF and SSS treated with permanent pacemakers is highly effective and safe method. In addition, it is superior to pharmacological approach. The presence of T2D likely did not significantly affect the efficacy of RFA for persistent form of AF.
VULNERABLE ATHEROSCLEROTIC PLAQUES OF CORONARY ARTERIES IN PATIENTS WITH STABLE CORONARY ARTERY DISEASE
Authors: Kochergin N. A. , Kochergina A. M. , Ganjukov V. I. , Barbarash O. L. 
Published: September 2018

Background. Acute coronary syndrome remains the leading cause of death worldwide. The rupture of vulnerable atherosclerotic plaque in the coronary artery is a common pathogenetic mechanism contributing to the onset of acute coronary syndrome. Therefore, one of the main goals of the practical cardiology is to ensure the development of sensitive early diagnostic methods and set preventive and treatment strategies for acute coronary event. Aim To evaluate the incidence of vulnerable plaques in the non-target coronary arteries in patients with stable coronary artery disease.Methods. 58 patients with stable coronary artery disease were included in a prospective observational cohort study. After the target vessel had been stented, virtual histology intravascular ultrasound (VH-IVUS) of the proximal and middle segments (6–8 cm) of one non-target artery (i.e. without any significant stenotic lesions on coronary angiography) was performed.Results. The mean age of patients was 60.4±6.6 years. In addition to the targeted hemodynamically significant lesions subjected to stenting, 56 patients had 58 lesions (96.5%) in the non-target coronary arteries. Of them, 5 lesions (8.6%) were with >70% luminal stenosis (including >70% luminal stenosis + lumen area <4 mm2 in 4 cases), 10 lesions (17.2%) – with minimum lumine area <4 mm2 and without any other signs of vulnerable plaque, 12 lesions (20.7%) – with a large necrotic core and a thin cap (including thin-cap fibroatheroma + >70% luminal stenosis in 2 patients; thin-cap fibroatheroma + lumen area <4 mm2 – 2 cases, thin-cap fibroatheroma + >70% luminal stenosis + lumen area <4 mm2 – 2 cases).Conclusion. In vivo evaluation of the plaques in the non-target vessels ensures the detection of vulnerable plaques in stable patients. The long-term follow-up of the study group allows assessing the risk of developing adverse cardiovascular events in those patients who have vulnerable coronary plaques.
TRANSRADIAL AND TRANSFEMORAL ACCESS FOR CAROTID ARTERY STENTING WITH AN EMPHASIS ON THE DETECTION OF MICROEMBOLIZATION WITH DIFFUSION WEIGHTED MAGNETIC RESONANCE IMAGING (TACTILE TRIAL).
Authors: Malaev D. U. , Kretov E. I. , Baystrukov V. I. , Naidenov R. A. , Prokhorikhin A. A. , Boykov A. A. 
Published: September 2018

Aim. To compare transradial (TR) and transfemoral (TF) approach for carotid artery stenting (CAS) with an emphasis on the detection of micro-embolization with diffusion-weighted magnetic resonance imaging (DW-MRI).Methods. 96 patients were included in the study in the period from January 2015 to October 2017 with further randomized 1 : 1 to the TR and TF groups. The inclusion criteria were the following: symptomatic stenosis ICA >70%; or asymptomatic stenosis ICA >80%. The positive history of stroke, myocardial infarction or open heart surgery <1 month were the exclusion criteria for the study. The primary endpoint was the incidence of new cerebral ischemic lesions as assessed by DW-MRI. All CAS procedures were performed by two experienced operators according to the approved protocol.Results. Procedural success with TR approach was 46 (96%) versus 48 (100%) with TF approach (p = 0.495). Crossover rate was 4% in the TR group. The rate of primary endpoint in the TR and TF groups was 50 and 52%, respectively. The absolute risk difference was -2% (95% CI [-0.21, 0.17], p (non-inferiority) = 0.03). An «on-treatment» analysis revealed a tendency towards a reduced microembolic foci when intervening on the right ICA via TR approach compared to TF (44% vs. 68%, p = 0.478), and a reverse trend when intervening on the left ICA via TR compared to TF approach (57% versus 36%, respectively, p = 0.437).Conclusion. Carotid stenting via transradial approach is noninferior for cerebral embolism to transfemoral approach. The rates of MACCE and vascular complications were similar in both groups. There was no significant difference in the procedural success rate in the transfemoral and transradial groups. The fluoroscopy time during transradial carotid stenting was higher in comparison with transfemoral carotid stenting, though the procedure duration was similar in both groups.
L’écriture et les signes inclusif·ve·s, avec ou sans ? Activité pédagogique de Français sur Objectifs Spécifiques
Authors: Sarzi Amade José 
Published: September 2018

La question de l’emploi de l’écriture inclusive a occupé très récemment l’actualité en France. D’abord débat de société, elle a vite enflé et s’est transformée en polémique, opposant progressistes, féministes contre certains « puristes » ou conservateurs. En question, les inégalités entre sexes présentes aussi dans la langue française dont les règles d’orthographe en vigueur privilégieraient, de façon arbitraire, le masculin au féminin. Afin de remédier à la prétendue injustice, un système orthographique a priori plus paritaire a été conçu et presse désormais pour s’imposer dans les pratiques du français de tous les jours. Face au cloisonnement du débat, nous avons saisi l’occasion pour en faire un matériau servant à la didactique des langues étrangères et plus précisément, au FOS (Français sur Objectifs Spécifiques). Les questionnements techniques, sociolinguistiques autour de l’écriture inclusive et de son emploi nous ont permis d’imaginer un scénario possible de formation autour de ce thème, en le rendant sensible aux étudiants allophones d’une université.
FATORES INFLUENTES NO PROCESSO DECISÓRIO DE AGRICULTORES DE PRODUTOS ORGÂNICOS
Authors: Rosa Nadir Paula da , Caumo Alessandra Juliana , Machado João Armando Dessimon , Staduto Jefferson Andronio Ramundo 
Published: September 2018

A agricultura orgânica vem ganhando melhor visibilidade nos últimos anos, mas na tentativa de acompanhar esse crescimento os agricultores orgânicos, oriundos da agricultura familiar, que atuam nesse sistema de produção enfrentam problemas no processo da tomada de decisão, quanto à produção e aos novos investimentos. O objetivo deste artigo incide em caracterizar os elementos que influenciam os produtores orgânicos à tomada de decisão em suas propriedades e identificar os principais riscos e benefícios inerentes à atividade. Para a realização deste estudo, foram aplicados questionários semiestruturados junto aos produtores orgânicos que participam, aos sábados pela manhã, da Feira da Redenção em Porto Alegre, Rio Grande do Sul. Em síntese, os resultados revelaram que a atividade orgânica, é uma atividade familiar, intensiva em mão de obra, necessitando de muito comprometimento. Constatou-se também que a maioria dos produtores possuem idade elevada, que buscam informações em instituições de assitência técnica, extensão e pesquisa e também por conta própria. O apoio para desenvolver as atividades vem das associações e da EMATER. Optaram por este sistema de produção pelo incremento de renda, e em razão da qualidade de vida e dos apelos dos consumidores. Em relação aos riscos apresentados na literatura, apenas o risco de preço e mercado foi considerado como menos preocupante pelos agricultores, já que eles relataram que vendem tudo o que produzem sem dificuldade alguma. As estratégias mais importantes, utilizadas pelos agricultores estudados, para a manutenção das famílias e o fortalecimento na geração de renda na agricultura familiar estão atreladas à agregação de valor aos produtos, à diversificação e ao aperfeiçoamento das práticas orgânicas.
SSR analysis of the genomic DNA of perspective Uzbek hexaploid winter wheat varieties
Authors: Adylova A. T. , Norbekov G. K. , Khurshut E. E. ,  Nikitina E. V. , Kushanov F. N. 
Published: September 2018

The objective of this study was to investigate the genetic diversity of hexaploid wheat varieties of Uzbekistan breeding using simple sequence repeat (SSR) markers. These varieties are adapted to local conditions, and can be considered as the most important supplier of genetic resources for cultivation in Uzbekistan and other countries. Microsatellite markers are now most widely used and effective classes of DNA markers for genotyping, certification and classification of plant varieties. In this paper, genotyping results of 32 hexaploid wheat domestic varieties using 144 microsatellite primer pairs are presented. Microsatellite primer pairs were chosen from literature data and 36 primer pairs (from 144) gave polymorphic well-reproducible PCR-fragments. The individual SSR spectra differing in number of amplicons were obtained for each variety. A total number of 141 alleles for 36 microsatellite loci were detected. The number of alleles per locus ranged from 2 to 6, the mean number of alleles per locus (Na) was 3 alleles. For the studied genotypes group the effective number of alleles (ne) characterizing the loci by the allele frequency, varied from 1.7 to 4.8, the mean number of alleles per locus was 2.8. The expected heterozygosity (He) ranged from 0 to 0.792, averaging 0.626, in studied wheat population. The amplified fragment sizes ranged from 93 to 552 bp. The polymorphic index content (PIC) ranged from 0 to 0.758. A dendrogram was constructed using the alleles set of microsatellite loci, reflecting the phylogenetic differences of the studied hexaploid wheat varieties. It showed that Uzbekistan breeding varieties are divided into two main clusters, which may be evidence of their common origin. A genetic formula has been developed for each Uzbek wheat variety. It can be used for identification, certification of these varieties, as well as for the selection of parental pairs in the wheat breeding programs.
Gestão contábil nas MPES: relevância para os formandos em Administração
Authors: Cangussú Renate Würzler de Oliveira Pinheiro , De Lames Edilei Rodrigues , Lames Liliane Da Costa Jacobs 
Published: September 2018

Todo empreendimento, grande ou pequeno, busca solidez e permanência no mercado, utilizando-se para isso de várias ferramentas. Dentre estas, uma de primordial importância para a condução dos negócios é a Gestão Contábil. O objetivo deste estudo foi analisar a percepção dos formandos em Administração com relação à relevância da Gestão Contábil para as micro e pequenas empresas. O estudo foi feito com formandos em Administração da cidade de Hortolândia (SP). Verifica-se baixo conhecimento dos processos e ferramentas da Contabilidade. Estes percebem a importância da Contabilidade, porém, há necessidade de compreender com maior profundidade e amplidão a relevância da Gestão Contábil para conduzir com vitalidade os empreendimentos de que futuramente serão gestores. Conclui-se que um grupo significativo dos potenciais gestores, sob o ponto de vista financeiro, está despreparado para gerir um pequeno empreendimento, tendo em vista o pouco conhecimento da área contábil e a distorção na classificação da importância destas ferramentas.
Influência do curso de Administração nas finanças pessoais de seus alunos
Authors: Accorsi Rafael De Souza , Lopes Johnny Roger Machado , De Lames Edilei Rodrigues , Machado Ricardo De Queiroz , Lames Liliane Da Costa Jacobs 
Published: September 2018

Este trabalho aborda o tema Administração Financeira Pessoal e tem como objetivo geral avaliar a influência do conhecimento obtido no curso de Administração nas finanças pessoais dos alunos, observando as principais diferenças entre os ingressos e os formandos em administração com relação ao comportamento financeiro. A pesquisa caracteriza-se como descritiva com abordagem quantitativa. Os dados foram coletados por meio de questionário aplicado a 253 alunos do primeiro e sétimo semestres de um curso de Administração da Região Metropolitana de Campinas (RMC). Para análise dos resultados utilizou-se da estatística descritiva, através do aplicativo Microsoft Excel. Entre os principais resultados da pesquisa, destacam-se: com o passar do tempo de curso, aumenta-se o nível de empregabilidade dos alunos, assim como a sua renda; apesar de não haver uma disciplina específica dentro da matriz curricular do Curso de Administração sobre finanças pessoais, verifica-se que o curso influencia positivamente a vida de seus alunos, ainda que de maneira indireta, especialmente em relação ao controle e planejamento financeiro.
Motivation and Knowledge: Pre-Assessment and Post-Assessment of MOOC Participants From an Energy and Sustainability Project
Authors: Valdivia Vázquez Juan Antonio , Ramírez-Montoya María Soledad , Valenzuela González Jaime Ricardo 
Published: September 2018

Understanding factors promoting or preventing participants’ completion of a massive open online course (MOOC) is an important research topic, as attrition rates remain high for this environment. Motivation and digital skills have been identified as aspects promoting student engagement in a MOOC, and they are considered necessary for success. However, evaluation of these factors has often relied on tools for which the psychometric properties have not been explored; this suggests that researchers may be working with potentially inaccurate information for judging participants’ profiles. Through a set of analyses (t-test, exploratory factor analysis, correlation), this study explores the relationship between information collected by administering valid and reliable pre and post instruments to measure traits of MOOC attendees. The findings from this study support previously reported outcomes concerning the strong relationships among motivation, previous knowledge, and perceived satisfaction factors for MOOC completers. Moreover, this study provides evidence of the feasibility of developing valid assessments for evaluation purposes.
Existe-t-il un paradigme darwinien ? Pour une ontologie historique de la théorie de l’évolution
Authors: Bertoldi Nicola 
Published: September 2018

La théorie de Darwin est considérée par de nombreux historiens comme une véritable révolution scientifique, raison pour laquelle l’objectif de cet article est précisément de rendre compte des caractères révolutionnaires de cette théorie, dans le cadre d’une conception des révolutions scientifiques empruntée à l’œuvre de Thomas Kuhn. Cela implique, notamment, la définition d’un « paradigme darwinien », à la fois comme matrice disciplinaire et comme solution exemplaire à un problème donné. Dans un tel but, nous définirons la structure et le contenu de la théorie de Darwin, afin de mettre au jour la problématique qui pourrait être à la base d’un « paradigme darwinien », c’est-à-dire le problème de la complexité adaptative du vivant. Nous identifierons ensuite ce qui distinguerait ce paradigme des autres, si bien que le problème de la complexité ne saurait être posé et résolu que dans son cadre. Pour ce faire, nous nous concentrerons sur deux dichotomies : d’une part, celle entre fonctionnalisme et formalisme, d’autre part, celle entre naturalisme et idéalisme. En conclusion, nous mettrons au jour les limites de l’épistémologie kuhnienne pour l’analyse de la théorie de l’évolution, ce qui nous amènera à equisser les contours d’une approche alternative, que nous appellerons « ontologie historique ».
Interjurisdictional Variance in US Workers’ Benefits for Emergency Response Volunteers
Authors: Van Nostrand Elizabeth , Pillai Nandini , Ware Alix 
Published: September 2018

Volunteers who are deployed during times of disaster are critical public health system assets. These individuals share concerns about a variety of subjects with public health law implications, including whether they are entitled to employment benefits before, during, and after disaster response. We examined and analyzed state employment benefit laws pertaining to emergency response volunteers. We used the Emergency Law Inventory (ELI; https://legalinventory.pitt.edu )—an informatics tool developed at the University of Pittsburgh Graduate School of Public Health that contains more than 1300 statutory and regulatory provisions affecting volunteer activities—to access certain employment laws in 60 jurisdictions. Analyses of the laws revealed that fewer than half of the jurisdictions have laws that protect seniority, vacation time, sick time, or overtime privileges. Additionally, there is tremendous variance and lack of uniformity among the jurisdictions concerning employment status requirements, geographic constraints, time limitations, and economic impacts. Major disasters often necessitate interjurisdictional response. To facilitate effective deployment of volunteers, employment laws should be uniform across the states. Furthermore, limitations that impede volunteer responders should be eliminated.
Effects of Light‐Emitting Diodes on the Growth of Peanut Plants
Authors: Li Cheng , Liu Dan , Li Lili , Hu Shaoxin , Xu Zhigang , Tang Canming 
Published: September 2018

Core Ideas
The ratio R/B = 3:7 light can be used for peanut industry cultivation.
By increasing B light‐emitting diode can improve the photosynthetic intensity of peanut leaves.
Peanuts can be produced using factory cultivation without the need for land.
Light‐emitting diodes (LEDs) are a new type of energy‐saving light source, and their effects on the growth of peanut (Arachis hypogaea L.) plants remain unknown. This study aimed to determine the effects of LEDs on the growth of peanut plants. Plants were exposed to 300 μmol/m2/s photosynthetic photon flux density under a 12 h photoperiod and six different treatments: monochromatic red (R) LED, monochromatic blue (B) LED, three R plus B LED mixtures (7:3, 1:1, 3:7), and fluorescent lamps (FL). At the seedling stage, the fresh weight, dry weight, height, root length, and chlorophyll content were greatest in plants under R/B = 7:3 light. At the blooming stage, the starch concentration and soluble sugars were greatest in plants under R light followed by those under R/B = 1:1 light, the sucrose concentration was greatest under R/B = 7:3 light followed by R/B = 1:1 light, and the chlorophyll concentration was greatest under R/B = 1:1 light. These results showed that R/B = 1:1 light was conducive to peanut growth at the blooming stage. At the pod‐setting stage, the sucrose concentration and soluble sugars were greatest in plants under R/B = 1:1 light, and the starch content was greatest in plants under R/B = 3:7 light. The pod numbers and yields were greater in plants under R/B = 3:7 light than in plants under the other LED lights. R/B = 3:7 light was best for pod growth and yield and could be used as an alternative light source for peanut industry cultivation.