bluuebunny/crossref_metadata_2025 huggingface dataset:
Oxidative stress status and reproductive performance of sows during gestation and lactation under different thermal environments
Authors: Zhao Yan , Kim Sung Woo
Published: October 2019

Objective: Two experiments were conducted using 28 healthy multiparous sows to evaluate the oxidative stress status and reproductive performance of sows during gestation and lactation under different thermal environments.Methods: Fourteen multiparous sows were used in Exp. 1 under a high thermal environment, and the other 14 multiparous sows were used in Exp. 2 under a moderate thermal environment. In both experiments, reproductive performances of sows were recorded. Plasma samples were collected on d 35, 60, 90, and 109 of gestation, and d 1 and 18 of lactation for malondialdehyde, protein carbonyls, 8-hydroxy-deoxyguanosine, immunoglobulin g (IgG), and IgM analysis.Results: For sows in Exp. 1, plasma malondialdehyde concentration on d 109 of gestation tended to be greater (p<0.05) than it on d 18 of lactation. Plasma concentration of protein carbonyl on d 109 of gestation was the greatest (p<0.05) compared with all the other days. Plasma concentrations of 8-hydroxy-deoxyguanosine on d 109 of gestation was greater (p<0.05) than d 18 of lactation in Exp. 1. For sows in Exp. 2, there was no difference of malondialdehyde and protein carbonyl concentration during gestation and lactation. In both Exp. 1 and 2, litter size and litter weight were found to be negatively correlated with oxidative stress indicators.Conclusion: Sows under a high thermal environment had increased oxidative stress during late gestation indicating that increased oxidative damage to lipid, protein, and DNA could be one of the contributing factors for reduced reproductive performance of sows in this environment. This study indicates the importance of providing a moderate thermal environment to gestating and lactating sows to minimize the increase of oxidative stress during late gestation which can impair reproductive outcomes.
Enhancing liquid-chilled storage and cryopreservation capacities of ram spermatozoa by supplementing the diluent with different additives
Authors: Rateb Sherif  A. , Khalifa Marwa A. , Abd El-Hamid Ibrahim S. , Shedeed Hesham A.
Published: October 2019

Objective: In the present study, we determined efficiency of incorporating caffeine, melatonin or omega-3 polyunsaturated fatty acid in the diluent on mitigating consequences of (a) liquid chilled- and (b) cryo-storage of ram spermatozoa.Methods: In the first experiment, ejaculates (n = 30) were collected from 5 adult rams and were pooled, diluted (1:10) with Tris-citric acid (base diluent) and were split into 4 aliquots assigned for: control (untreated), caffeine (0.1 mM), melatonin (0.3 mM) or omega-3 fatty acids (0.3 mM) (T0). The diluted specimens were stored at 4°C for 48 h, during which sperm physical and cytological properties were evaluated along with oxidative stress indices (T24, T48). In the second experiment, 15 ejaculates (3 per male) were pooled, diluted with glycerolized base diluent (4% glycerol, v/v) and were split corresponding to the same previous treatment groups before being processed for cryopreservation. Post-thaw physical and kinematic sperm properties were assessed by a computer-assisted sperm analysis system.Results: The results clarified superiority of both melatonin and omega-3 supplementation on maintaining (p<0.05) sperm properties, while reducing (p<0.05) lipid peroxidase reaction and enzymatic activities of alanine aminotransferase, aspartate aminotransferase, and alkaline phosphatase in preservation medium, compared to caffeine either during liquid-chilled storage or cryopreservation of spermatozoa.Conclusion: Melatonin and omega-3 are regarded efficient alternatives to caffeine when processing ram spermatozoa for application of artificial insemination or in vitro fertilization.
Effect of shearing on some physiological and hormonal parameters in Akkaraman sheep
Authors: Pehlivan Erkan , Kaliber Mahmut , Konca Yusuf , Dellal Gürsel
Published: October 2019

Objective: Shearing is one of the practices that is applied periodically to fiber producing animals, which can also alter resistance of animals to high temperatures in especially summer months. This study aimed to investigate effects of shearing on some physiological and hormonal parameters in Akkaraman sheep during summer season.Methods: This study was carried out on 39 non-pregnant Akkaraman ewes (aged 1.5 years at the beginning of experiment). The 39 ewes were chosen randomly from the flock belonging to the Erciyes University and they were assigned to two groups as follows: i) group A (n = 20) designed as the control group, they were shorn and group B (n = 19) designed as the experimental group, they were unshorn. Prior to the shearing (–1 day) and on days 1, 7, 15, 30, 45, 60, 75, and 90 following the shearing, blood samples were taken from the vena jugularis of each sheep. Cortisol, β-endorphin, growth hormone (GH), thyroxine (T4), triiodothyronine (T3), and heat shock protein 70 (HSP-70) concentrations were determined using the enzyme immunoassay method. Body weight (BW), rectal temperature (RT), pulse rate (PR), and respiratory rate (RR) of each sheep were recorded at the same time. The data obtained were analyzed using two-way repeated measures analysis of variance.Results: Statistical analysis showed a significant effect of shearing×period interaction (p<0.01) and a significant effect of period (p<0.01) on BW, HSP-70, cortisol, T4 and RT, PR, GH, β-endorphin, T3, respectively. Also these analysis showed no significant effect of shearing× period interaction or period on RR.Conclusion: The results showed that the thermoregulation abilities of sheep were affected by shearing treatment and the shorn ewes were less affected by heat stress. In conclusion, based on the data of this study, shearing can be considered as a necessary management practice that requires protection for sheep from the effect of heat stress.
Subpopulations of miniature pig mesenchymal stromal cells with different differentiation potentials differ in the expression of octamer-binding transcription factor 4 and sex determining region Y-box 2
Authors: Jeon Ryounghoon , Park Sungjo , Lee Sung-Lim , Rho Gyu-Jin
Published: October 2019

Objective: Human mesenchymal stromal cells (MSCs) exhibit variable differentiation potential and can be divided accordingly into distinct subpopulations whose ratios vary with donor age. However, it is unknown whether the same is true in pigs. This study investigated MSC subpopulations in miniature pig and compared their characteristics in young (2 to 3 months) and adult (27 to 35 months) pigs.Methods: Osteogenic, chondrogenic, and adipogenic capacity of isolated MSCs was evaluated by von Kossa, Alcian blue, and oil red O staining, respectively. Cell surface antigen expression was determined by flow cytometry. Proliferative capacity was assessed with the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay. Expression of marker genes was detected by quantitative real-time polymerase chain reaction.Results: Porcine MSCs comprised cells with trilineage and bilineage differentiation potential (tMSCs and bMSCs, respectively) and non-differentiating stromal cells (NDSCs). The tMSC and bMSC fractions were smaller in adult than in young pigs (63.0% vs 71.2% and 11.6% vs 24.0%, respectively, p<0.05); NDSCs showed the opposite trend (25.4% vs 4.8%; p<0.05). Subpopulations showed no differences in morphology, cell surface antigen expression, or proliferative capacity, but octamer-binding transcription factor 4 (OCT4) expression was higher in tMSCs than in bMSCs and NDSCs (p<0.05), whereas sex determining region Y-box 2 (SOX2) expression was higher in tMSCs and bMSCs than in NDSCs (p<0.05). Aging had no effect on these trends.Conclusion: Porcine MSCs comprise distinct subpopulations that differ in their differentiation potential and OCT4 and SOX2 expression. Aging does not affect the characteristics of each subpopulation but alters their ratios.
Extended nursing and/or increased starter diet allowances for low weaning weight pigs
Authors: Craig Aimee-Louise , Muns Ramon , Gordon Alan , Magowan Elizabeth
Published: October 2019

Objective: To evaluate the use of nurse sows and post-weaning nutrition strategies for low wean weight (WW) pigs on lifetime growth and efficiency.Methods: Animals (n = 270) were assigned to one of five treatments at 28 d. Low WW pigs (<6 kg) were either weaned and offered a special dietary regime recommended for low WW pigs (WEAN) or placed on a nurse sow (NURSE) and weaned at 49 d. Normal WW pigs (9 kg) (NORM) were also weaned at 28 d. After weaning, NORM and NURSE pigs were offered either a ‘high’ (4 kg/pig of starter 1 diet followed by 8 kg/pig of starter 2 diet) or ‘low’ (8 kg/pig of starter 2 diet) starter diet allowance in a 2×2 factorial arrangement. A typical grower diet was then offered, followed by a typical finisher diet until 147 d of age.Results: NORM pigs where heavier throughout their life compared to NURSE pigs (91.4 kg vs 76.2 kg at 147 d; p<0.001). WEAN pigs were heavier at 70 d compared to NURSE pigs (23.9 kg vs 21.0 kg; p<0.001), but there was no significant difference at 147 d between NURSE and WEAN treatments. NURSE pigs had reduced feed intake throughout the finishing period (1.6 kg/d; p<0.001) compared to WEAN (2.0 kg/d) and NORM (1.9 kg/d) pigs. Feed conversion ratio (FCR) of NURSE (2.20) was lower than NORM and WEAN during the finishing period (2.40 and 2.79, respectively).Conclusion: Extended (up to 49 d) nursing for low WW pigs resulted in improved FCR during the finishing period, but no overall improvement in growth rate compared to low WW pigs weaned at 28 d and offered a specialised starter regime. Normal WW pigs where significantly heavier than low WW pigs throughout the study.
Dietary supplementation with different types of fiber in gestation and lactation: effects on sow serum biochemical values and performance
Authors: Weng Ruey-Chee
Published: October 2019

Objective: Three types of dietary fiber were fed to sows during gestation and lactation stages to monitor their physiological and metabolic adaptations during the pre-partum period and to determine how these effects may influence the lactation period and sow performance.Methods: Soon after breeding, 54 sows were selected and were fed with 20% supplementation as fed of wheat bran (WB), soya hulls (SH), or rice hulls (RH) in diets during gestation and lactation. Sows were weighed, backfat thickness was measured ultrasonically and jugular blood samples were collected from all sows. The litter size was equalized to 10, by fostering piglets from sows on the same treatment.Results: Sows gained 22.0, 21.8, and 25.5 kg of net maternal body weight during gestation (for WB, SH, and RH sows, respectively; p = 0.007). There was no treatment effect on the body weight change during lactation (p = 0.158), however RH sows consumed an average of 133.66 kg of feed, WB sows took 121.29 kg and SH sows took 126.77 kg during lactation (p<0.001). The SH litters gained an average of 59.34 kg of weight during lactation, while other litters gained 51.58 and 49.98 kg (for WB and RH litters, respectively; p<0.001). Exception for aspartate aminotransferase and alanine aminotransferase, measured serum biochemical values were broadly in agreement with earlier reports. Despite the use of additional vegetable oil to balance the energy level, RH sows still had lower concentrations of serum triglycerides in late gestation.Conclusion: Different types of fibrous ingredients in the gestation diet influenced most of the investigated reference values for sows. The values of serum biochemical parameters were generally not affected by fiber type during the lactation stage. The SH supplementation for sows is an effective approach to give heavier litters at birth and weaning and to increase voluntary feed intake in early lactation.
Characterisation of fungal contamination sources for use in quality management of cheese production farms in Korea
Authors: Kandasamy Sujatha , Park Won Seo , Yoo Jayeon , Yun Jeonghee , Kang Han Byul , Seol Kuk-Hwan , Oh Mi-Hwa , Ham Jun Sang
Published: October 2019

Objective: This study was conducted to determine the composition and diversity of the fungal flora at various control points in cheese ripening rooms of 10 dairy farms from six different provinces in the Republic of Korea.Methods: Floor, wall, cheese board, room air, cheese rind and core were sampled from cheese ripening rooms of ten different dairy farms. The molds were enumerated using YM petrifilm, while isolation was done on yeast extract glucose chloramphenicol agar plates. Morphologically distinct isolates were identified using sequencing of internal transcribed spacer region.Results: The fungal counts in 8 out of 10 dairy farms were out of acceptable range, as per hazard analysis critical control point regulation. A total of 986 fungal isolates identified and assigned to the phyla Ascomycota (14 genera) and Basidiomycota (3 genera). Of these Penicillium, Aspergillus, and Cladosporium were the most diverse and predominant. The cheese ripening rooms was overrepresented in 9 farms by Penicillium (76%), while Aspergillusin a single farm. Among 39 species, the prominent members were Penicillium commune, P. oxalicum, P. echinulatum, and Aspergillus versicolor. Most of the mold species detected on surfaces were the same found in the indoor air of cheese ripening rooms.Conclusion: The environment of cheese ripening rooms persuades a favourable niche for mold growth. The fungal diversity in the dairy farms were greatly influenced by several factors (exterior atmosphere, working personnel etc.,) and their proportion varied from one to another. Proper management of hygienic and production practices and air filtration system would be effective to eradicate contamination in cheese processing industries.
AI in Healthcare practice: opportunities and challenges for clinical decision support systems
Authors: Millen David R.
Published: October 2019

In the past few years there has been great optimism about the potential benefits of incorporating AI (cognitive) capabilities into healthcare products and services. Indeed, progress in Natural Language Processing (NLP) has made electronic health records both more accessible and comprehensible, advances in image processing algorithms has helped to early identify tumors, and large datasets with new discovery services can help with breakthrough insights in life sciences and drug discovery. Importantly, new AI-based solutions are embedded in the sociotechnical systems of clinical care and within complex regulatory environments and globally diverse cultural frameworks. In this talk, I will present several case studies of novel AI – based healthcare applications that have been introduced in recent years and share lessons learned along the way. Particular focus will be on design research challenges for healthcare products, including understanding complex workflows within clinical settings and highly specialized and diverse mental modals, and understanding multiple stakeholders and interdependent participants. Design considerations and emerging opportunities for AI-based clinical decision support systems will also be shared.
HCI evaluation with Cognitive Dimensions of Notations
Authors: Ferreira Juliana Jansen , Segura Vinícius
Published: October 2019

During the design and development of a technological artifact or when such artifact is already in the hands of users, an inspection method can help researchers and practitioners deal with not only usability issues, but also provide a common language to evaluate different design alternatives. The Cognitive Dimensions of Notations framework (CDNf) is a methodological resource designed to identify and discuss cognitive loads imposed by notations. In this six hour short course, we aim to talk about our experience with CDNf alone and combined with other HCI methods and to explore CDNf in practice with hands on activities to show participants how it can be a useful resource.
Agentes de conversação para idosos, plataforma Guardião
Authors: Ferreira Andressa , Damasceno Adson , Moraes José , Cortés Mariela , Oliveira Francisco
Published: October 2019

Com o aumento da expectativa de vida, soluções inovadoras que garantem o bem-estar dos idosos se tornam mais necessárias. Nesse contexto, visando negar as principais dificuldades relatadas pelo público idoso com o uso de dispositivos móveis, propomos uma tecnologia inteiramente baseada em interações de voz e nomeamos esse projeto de Guardião. A essência do projeto é fornecer, por meio de um aplicativo móvel, uma plataforma com um conjunto de agentes inteligentes focados no bem-estar dos idosos. Neste trabalho, os principais objetivos são analisar e avaliar a usabilidade do Guardião e os impactos culturais da tecnologia. Para a coleta de dados, foram utilizadas gravações em vídeo, um questionário que identifica o perfil sócio-tecnológico dos participantes da pesquisa e a escala de usabilidade do sistema (SUS).
Uma Experiência com o Uso do GAIA para Inspeção de Acessibilidade do YouTube com foco no autismo
Authors: Mendonça Bruno H , Marques Anna B
Published: October 2019

Usuários com o Transtorno do Espectro Autista (TEA) podem enfrentar barreiras no uso de sistemas interativos, pois apresentam dificuldades em relação à interação social, comunicação, um repertório limitado de interesses e atividades, podendo não compreender ou perceber determinados conteúdos, termos e figuras presentes na interface de sistemas. Diante disto, pesquisas anteriores criaram diretrizes de acessibilidade para pessoas com TEA para auxiliar esses usuários e, mais recentemente, o GAIA: um Guia de recomendações de acessibilidade de interfaces Web com foco em aspectos do Autismo. Pesquisas indicam que o aplicativo de reprodução de vídeos YouTube é muito utilizado por usuários com TEA. A avaliação de acessibilidade foi conduzida por meio de uma inspeção com a participação de oito inspetores. A contribuição deste artigo é o relato da avaliação de acessibilidade do YouTube, apresentado os problemas de acessibilidade identificados.
O controle por detrás da tela: a Inteligência Artificial da NetFlix sob a ótica dos usuários
Authors: Verhalen Aline , Maciel Cristiano , De Souza Patricia , Kronbauer Artur
Published: October 2019

A Inteligência Artificial (IA) tem sido amplamente usada para aprimorar a experiência do usuário (UX) em diferentes sistemas computacionais. Neste contexto, este artigo tem como objetivo analisar a IA usada na Netflix e verificar os sentimentos hedônicos proporcionados a seus usuários. Para atingir o objetivo, são utilizadas diferentes técnicas de avaliação oriundas da áreas de Interação Humano-Computador (IHC). Os resultados demonstram que a combinação das técnicas de avaliação podem contribuir para identificar os sentimentos dispertados pelo sistema de recomendação
O uso de uma interface conversacional como ferramenta de interação em um ERP para indústria da construção
Authors: Da Silva Jefferson B , Lotthammer Karen
Published: October 2019

Dentre os muitos desafios encontrados no desenvolvimento e utilização dos ERPs1 [1], estão a forma com que os dados são apresentados em tela e como são analisados pelos usuários. Considerando a necessidade de uma alta carga cognitiva para compreensão essas informações complexas apresentadas em tela, busca-se outros meios para auxiliar o usuário na utilização do sistema e consequentemente, a eliminação dessas barreiras. Este trabalho apresenta a implementação de processamento de linguagem natural [2] (PLN), por meio de bot, em um ERP utilizado na construção civil. O processo explora o design centrado no usuário, realizado em 2 fases (entrevistas qualitativas e validação de hipóteses quantitativamente), identificando pontos que auxiliam o usuário na tomada de decisão sobre a gestão financeira da sua construtora. Essa exploração resultou em um fluxo de conversação com duas abordagens, denominadas pelos autores de passiva e proativa, via chatbot, integrado com a interface gráfica do ERP. O fluxo de conversação permite a visualização de informações em formato reduzido e estratégico, aplicando filtros que eliminam a necessidade de relatórios detalhados para a tomada de decisão.
Cãopanheiro: Como integrar e conscientizar alunos no cuidado e adoção de animais.
Authors: Moura Mariama , Morant Raphael , Pontes Melissa , Carvalho Luiza , Silvia Cynthia
Published: October 2019

O excesso de animais nas ruas é um reflexo da educação da sociedade. Por isso a educação deve ser focada desde uma idade tenra. Pensando nisto, focamos nossa pesquisa em como trabalhar a educação das crianças para transformar esta realidade. No intuito de entender melhor o problema, aplicamos questionários online com donos de abrigos e realizamos uma entrevista com uma especialista. Consideramos ainda experiências bem sucedidas na atenuação do abandono de animais. Os resultados apontaram que um fator que contribui para a situação de cães abandonados passa pela educação oferecida para as crianças na Educação Básica. A proposta apresentada consiste em desenvolver um projeto educacional com crianças do Ensino Fundamental para conscientizá-las e estimulá-las na adoção e cuidado com os animais abandonados. Sendo assim, propusemos uma solução que permite que os alunos pratiquem cuidados semelhantes aos que serão necessários para cuidar de um animal.
O Uso de Estratégias de Gamificação em uma Disciplina de IHC: Um Relato de Experiência
Authors: Miranda Paulo , Viana Josué , Nascimento Elison , Portela Carlos
Published: October 2019

A disciplina de Interação Humano-Computador (IHC) aborda os conceitos utilizados para tornar um sistema de software interativo. Neste sentido, a realização de projetos práticos permite com que os alunos possam aplicar esses conceitos e desenvolver competências técnicas na área. No entanto, apenas estes projetos não garantem que todos os alunos irão se engajar nas atividades propostas pelo professor. Este artigo apresenta um relato de experiência da adoção de elementos de gamificação na disciplina de IHC da Universidade Federal do Pará, cujo objetivo era a customização da interface do WhatsApp. Sendo assim, as atividades do projeto foram organizadas em fases a fim de que o aluno-jogador pudesse aplicar os conceitos de IHC de forma gradativa. Adicionalmente, definiram-se as pontuações, medalhas e premiação para cada fase. Esse relato apresenta os resultados obtidos e o ponto de vista do professor-facilitador (ensino) e dos alunos-jogadores (aprendizagem) em relação à gamificação da disciplina.
HCI Support Card: Creating and Using a Support Card for Education in Human-Computer Interaction
Authors: Ponciano Lesandro
Published: October 2019

Support cards summarise a set of core information about a subject. The periodic table of chemical elements and the mathematical tables are well-known examples of support cards for didactic purposes. Technology professionals also use support cards for recalling information such as syntactic details of programming languages or harmonic colour palettes for designing user interfaces. While support cards have proved useful in many contexts, little is known about its didactic use in the Human-Computer Interaction (HCI) field. To fill this gap, this study proposes and evaluates a process for creating and using an HCI support card. The process considers the interdisciplinary nature of the field, covering the syllabus, curriculum, textbooks, and students’ perception about HCI topics. The evaluation is based on case studies of creating and using a card during a semester in two undergraduate courses: Software Engineering and Information Systems. Results show that a support card can help students in following the lessons, remembering and integrating the different topics studied in the classroom. The card guides the students in building their cognitive maps, mind maps, and concept maps to study human-computer interaction. It fosters students’ curiosity and permanent engagement with the HCI topics. The card usefulness goes beyond the HCI classroom, being also used by students in their professional activities and other academic disciplines, fostering an interdisciplinary application of HCI topics.
Avaliação da Audiodescrição Gerada por Sistema: Análise sob a Perspectiva do Usuário
Authors: Cordeiro Rafael , Araújo Tiago , Aguiar Yuska
Published: October 2019

A audiodescrição (conhecida como AD) é uma faixa de áudio narrativa que auxilia as pessoas com deficiência visual na compreensão de conteúdos audiovisuais. O profissional responsável por gerar a AD é o audiodescritor. Este tem como tarefa transformar as informações visuais de vídeos ou apresentações em áudio para os espectadores. Este processo de transformação exige tempo e possui um alto custo. Como suporte para estes profissionais, tendo em vista a redução de tempo e custo para realização das audiodescrições, sistemas automáticos geradores de audiodescrição têm sido desenvolvidos. O objetivo deste trabalho de pesquisa consiste em avaliar um sistema gerador automático de audiodescrição de filmes. A metodologia proposta avalia a qualidade da AD gerada sob a perspectiva do usuário deficiente visual. O nível de acessibilidade da AD gerada automaticamente, a partir de dois modelos distintos, e de uma AD gerada por um audiodescritor foi avaliado a partir da aplicação de questionário sobre a compreensão dos vídeos exibidos. Os resultados mostraram que o modelo de AD automática baseado em roteiro cinematográfico apresentou resultados mais próximos à AD humana, enquanto o modelo baseado em reconhecimento de objetos contribuiu de forma mínima à compreensão, com resultados inferiores ao cenário sem audiodescrição.
Um Modelo de Interação Adaptável para Design Participativo com Crianças com Deficiência Intelectual
Authors: Ferreira Rallyson , Castro Thaís
Published: October 2019

Atualmente encontra-se na literatura pesquisas relevantes sobre Design Participativo (DP). Contudo, poucos demonstram iniciativas envolvendo crianças na tenra idade como parte do processo de Design de Interação (DI) para desenvolvimento de soware. Isso torna-se mais difícil quando são crianças com transtornos de neurodesenvolvimento, como autistas, que por não terem habilidades linguísticas suficientes não participam da fase de coleta de dados nem de interações posteriores para validação de protótipos. Assim, essas crianças ficam impossibilitadas de expressar suas preferências de design no desenvolvimento de aplicações criadas exclusivamente para esse mesmo público. Consequentemente, a maioria das aplicações tornam-se de propósitos gerais e inapropriadas para crianças neurotípicas. Através do DP é possível minimizar esses problemas utilizando técnicas para melhorar a compreensão linguística dessas crianças e propor abordagens para desenvolver novas aplicações com qualidade e projetadas para suprir suas necessidades. Portanto, este trabalho objetiva desenvolver um modelo de interação específico para auxílio no DI, através de aplicações lúdicas seguindo os preceitos de DP idealizada para maximizar as possibilidades de comunicação, inicialmente com crianças autistas, ao expressarem, através do contexto de design, suas representações de preferências.
Sumarização de Dispositivos de Efeitos Multissensoriais para Interações Humano-Computador
Authors: Saleme Estêvão , Covaci Alexandra , Mesfin Gebremariam , Saibel Santos Celso Alberto , Ghinea George
Published: October 2019

Dispositivos de efeitos multissensoriais estão cada vez mais sendo desenvolvidos por grupos de pesquisa e empresas com o objetivo de melhorar a qualidade da experiência (QoE) dos usuários, criando sensações de vibração, toque, cheiro, vento e assim por diante. Este breve artigo resume os esforços recentes de dispositivos táteis, olfativos e gustativos para criar experiências mais imersivas para a interação humanocomputador.
Co-Criação Inclusiva de Jogos Digitais Baseados em Storytelling Apoiada por um Framework em um Centro de Atenção Psicossocial Álcool e Drogas
Authors: Eusébio Garcia Franco , Brandão Roberta , Cheban Gabriel , Almeida Neris Vania
Published: October 2019

Neste artigo, sintetiza-se resultados de uma atividade de co-criação de jogos digitais inclusivos baseados em storytelling apoiada por um framework e realizada por usuários com diferentes necessidades de interação de um Centro de Atenção Psicossocial Álcool e Drogas. As atividades foram supervisionadas por profissionais do Centro e apoiados por colaboradores (áreas de Computação e Enfermagem). Participantes co-criaram jogos de acordo com suas habilidades, acrescentando recursos para que todos os seus colegas pudessem jogá-los. Como comunidades, os participantes criaram jogos e inclusão. Como indivíduos, observou-se melhorias de auto-estima e confiança.
Um Modelo para Detecção de Ansiedade Computacional em Idosos Interagindo com a Web
Authors: Dos Santos Thiago , Santana Vagner
Published: October 2019

Com o aumento do uso de diferentes tipos de tecnologias no cotidiano, seria esperado que usar computadores fosse confortável para todos. Porém, algumas pessoas ainda sentem-se apreensivas antes e durante o uso de computadores, enfrentando múltiplos níveis de ansiedade e, para níveis elevados, demonstram o que é chamado de Ansiedade Computacional (do inglês CA, Computer Anxiety). Pessoas com CA enfrentam problemas no uso de tecnologias em vários contextos, incluindo situações nas quais utilizam computadores por não terem alternativa, tais como ao utilizar serviços governamentais disponíveis somente por meio de sistemas computacionais, exercer a cidadania votando com urnas eletrônicas, caixas eletrônicos e ao utilizar computadores no trabalho. A CA pode criar múltiplas barreiras para essas pessoas, privandoas do acesso à tecnologia, à educação, ao pleno exercício da cidadania, entre outros. Neste contexto, o presente projeto investigou as principais características relacionadas a como idosos com CA interagem com computadores e como essas características são representadas em logs de interação. Para tal, realizou-se um estudo de campo com 31 participantes idosos envolvendo captura de dados de interação, dados de rastreamento ocular, escalas de rastreamento de níveis de depressão, ansiedade, ansiedade computacional, entre outras. Com os resultados, um modelo para detecção de CA foi obtido. Tal modelo é capaz de identificar diferentes níveis de CA (i.e., sem ansiedade, baixo nível de CA e alto nível de CA) com 83,87% de acurácia, mostrando que é possível identificar diferentes níveis de CA de idosos interagindo com a Web analisando logs de interação.
LIFeS: Laboratório de Interação Flexível e Sustentável
Authors: De Almeida Neris Vânia Paula
Published: October 2019

Este artigo apresenta o Laboratório de Interação Flexível e Sustentável (LIFeS). Este laboratório foi fundado em 2010 e está hospedado no Departamento de Computação da Universidade Federal de São Carlos. O objetivo principal do laboratório é avançar o estado da arte em Ciência e Engenharia da Computação, especialmente nos campos da Interação Homem-Computador. A pesquisa centra-se na identificação da diversidade dos usuários, incluindo aspectos emocionais, e no projeto e avaliação de soluções de interface de usuário flexíveis para vários dispositivos, plataformas e contextos como web, ubíquo e móvel. Mais recentemente, o laboratório vem investigando como projetar aplicações terapêuticas. Também se investiga como levar a sustentabilidade ao design e como os designers podem favorecer a sustentabilidade por meio de soluções computacionais.
On Challenges in Engineering IoT Software Systems
Authors: Motta Rebeca Campos , De Oliveira Káthia Marçal , Travassos Guilherme Horta
Published: October 2019

Contemporary software systems, such as the Internet of Things (IoT), Industry 4.0, and Smart Cities represent a technology changing that offer challenges for their construction since they are calling into question our traditional form of developing software. They are a promising paradigm for the integration of devices and communications technologies. It is leading to a shift in the classical monolithic view of development where stakeholders used to receive a software product at the end (that we have been doing for decades), to software systems incrementally materialized through physical objects interconnected by networks and with embedded software to support daily activities. Therefore, we need to revisit the classical way of developing software and start to consider the particularities required by these new sorts of applications. Since such software systems involve different concerns, this paper presents the results of an investigation towards defining a framework to support the software systems engineering of IoT applications. To support its representation, we evolved the Zachman’s Framework as an alternative to the organization of the framework architecture. The filling of such a framework is supported by a) 14 significant concerns of IoT applications, recovered from the technical literature, practitioner’s workshops and a Government Report; b) seven structured facets emerged from IoT data analysis, that together represent the engineering challenges to be faced both by researchers and practitioners towards the advancement of IoT in practice.
Krause, Spanish Krausism, and Philosophy of Action
Authors: Rueda Garrido Daniel ,   Philosophy Documentation Center
Published: October 2019

Krausists followed a dialectical method in all their activities. It is an action plan in which theory and practice are established on a continuum. Since it summarizes all human activity, this dialectic implies a philosophy of action. The originality of this article lies precisely in offering an account of the philosophy of action implicit in the work of Krause, which has never before been made explicit. Therefore, the goal of this article is, on the one hand, to isolate this dialectic in the texts of the Spanish Krausists, and, on the other hand, to demonstrate the traditional affirmation about the practical meaning of Krause’s philosophy, as shown in its Spanish version. This practical orientation of his thought was channelled through several disciplines and, especially, through the modern pedagogy known as active education. Throughout the article, I also show how to relate Krause’s philosophy to contemporary philosophical debates.
Ação fisioterapêutica na recuperação do paciente com acidente vascular encefálico: uma revisão bibliográfica
Authors: Mendes Lopes Nayane , Noronha Aguiar Raimunda , Vasconcelos de Carvalho Aluísio
Published: October 2019

As condições econômicas e socioculturais possuem ligação direta com a predisposição para o surgimento de doenças crônicas não transmissíveis, e dentre elas, o acidente vascular encefálico. O presente estudo tem como objetivo analisar os impactos dos exercícios terapêuticos neurofuncionais nos pacientes pós-Acidente Cerebral Encefálico. Trata-se de uma revisão bibliográfica qualitativa, descritiva e exploratória. A análise partiu da leitura de artigos publicados em periódicos no período de 2009 a 2018, observando as principais técnicas de tratamentos fisioterapêuticos. Foram encontrados um total de 41 artigos, sendo que 20 artigos tratavam do AVE, 13 artigos tratavam do papel do fisioterapeuta na restauração de pacientes e apenas 8 expunham sobre o papel do fisioterapeuta na reabilitação de doentes vítimas de AVE. Dos 8 artigos, 5 foram utilizados para a revisão, sendo que 36 foram descartados por se inserir em um ou mais processos de eliminação. As principais técnicas que surtiram efeito na doença estão o treino de marcha na esteira com (SPP), Bandagem Funcional associada ou não a FES (Estimulação Elétrica Funcional) e vibração na dorsiflexão e descarga de peso, Hidroterapia com o método de Bad Ragaz, o TENS (Estimulação Elétrica Nervosa Transcutânea) e Terapia de Contensão Induzida (TCI).
Formation de stagiaires en enseignement ayant une situation de handicap : points de vue des formateurs de terrain
Authors: Lebel Christine , Bélair Louise , Monfette Olivia , Hurtel Benoit , Miron Geneviève , Blanchette Sylvie
Published: October 2019

Cette étude vise l’analyse des tensions, des défis et des besoins entourant la formation et l’accompagnement de stagiaires en situation de handicap (SH) par des formateurs de terrain selon deux axes. Le premier concerne leur regard sur le fait d’offrir des mesures d’accommodement en les adaptant aux stages et le second porte sur l’accompagnement, la formation et l’évaluation des stagiaires en SH.

Il ressort d’un questionnaire en ligne et de groupes de discussion auprès de formateurs de terrain, pour le premier axe, qu’une forte proportion de répondants sont moins favorables à offrir des mesures d’accommodement, surtout dans les derniers stages, puisque l’autonomie du stagiaire en SH et son rendement au travail sont jugés prioritaires. En ce qui concerne le second axe, l’ouverture des répondants à former des stagiaires en SH dépend entre autres de la nature du handicap, des tensions que celui-ci occasionne dans la charge de travail et de leurs craintes relatives au manque d’ouverture de la société. Ils revendiquent de manière claire des formations sur cette problématique par des spécialistes de la question et des stratégies à mettre en place par les institutions pour assurer un meilleur suivi des stagiaires.
L’État du nationalisme : le nationalisme créole comme outil de légitimation de l’État bolivien, l’exemple du procès Peñas
Authors: Tremblay Guillaume
Published: October 2019

La fin du XIXe siècle bolivien est marquée par une solidification de la structure de l’État. Ce raffermissement permet l’émergence d’un nationalisme structuré en un outil de légitimation de l’État. Dans ce contexte, l’institution judiciaire devient l’une des sphères où s’observe cette dynamique qui prend alors les traits d’une théâtralité politique. À travers l’exemple du procès Peñas, qui suit la Guerre fédérale, le présent article montre comment la Justice, partie constitutive et constituante de l’État, apparaît comme un lieu clé où les conditions d’appartenance et les limites de la communauté nationale se définissent, légitimant au passage l’État lui-même.
La conception du projet universel dans le renouveau de la pensée communiste : pistes théoriques sur les pratiques de la multitude
Authors: Casséus Joel , Moussaly Omer
Published: October 2019

Quel sens peut bien avoir le pouvoir de la multitude au début du 21e siècle ? Nous pourrions conclure hâtivement avec Francis Fukuyama que nous avons atteint la fin de l’Histoire. Mais l’Histoire continue et d’autres penseurs refusent de croire que le projet d’émancipation universelle communiste est mort. Herbert Marcuse propose de revaloriser la pensée négative. Zizek, pour sa part, suggère l’établissement d’un nouvel universel. Dans cet article nous proposons le concept de « rupture hégémonique » afin de rendre opératoire l’analyse du passage d’une société civile pacifiée au renouveau de cette pensée négative.
How I Might Have Become a Composer
Authors: Cherney Brian
Published: October 2019

Brian Cherney reflects on his childhood and youth in Peterborough, Ontario, in the 1940s and 1950s and his musical studies at the University of Toronto. He considers the varied influence that family, recordings, CBC broadcasts, attending live concerts, piano lessons, reading about music, and spending time in Europe in the late 1960s had in shaping his emerging interest in becoming a composer. Cherney considers that it was only in the mid-1970s, after his appointment to McGill in 1972, that he developed the self-awareness, critical insight, and confidence to become a mature composer … someone who dared, in T.S. Eliot’s words, to “disturb the universe.”
Commissioning Brian Cherney’s String Trio
Authors: Jaeger David
Published: October 2019

The author offers a personal account of the events that led him to commission Brian Cherney’s String Trio in 1976 for CBC Radio Music. The trio was first heard on the Two New Hours radio program in 1978, along with solo works for violin, viola, and cello by the German composer Bernd Alois Zimmermann. In 1979 the trio was submitted for consideration to the International Rostrum of Composers, and it was chosen as a recommended work, which resulted in the trio being broadcast in twenty-five countries, significantly enhancing Cherney’s international reputation. The performers who premiered the trio also recorded it, allowing further audiences to appreciate this important work.
Leçons de Tenebrae: Brian Cherney, Paul Celan, and a Music of Witness
Authors: Vishio Anton
Published: October 2019

In several compositions, Brian Cherney has reflected on the Holocaust and its impact, exploring how music can respond to such tragedy; his recent engagement with the poetry of Paul Celan is a natural extension of these preoccupations. This article offers a close reading of Cherney’s choral setting of Celan’sTenebrae.The composer incorporates several additional texts that create a genealogy of the poem, from biblical passages to fragments of Dante and Hölderlin to accounts of the Holocaust itself; he arranges these texts to highlight semantic and sonic features of Celan’s work. Perhaps Cherney’s boldest move is his insertion of Hebrew letters, linking his composition to the long tradition of Lamentations settings—a link cemented by a quotation from Couperin’sLeçons de Ténèbres,which provides important motivic material. Through these additions, Cherney turns the poem towards us, inviting us to respond to its call for reflective witness.
État des lieux du jeu vidéo dans les bibliothèques françaises
Authors: Devriendt Julien
Published: October 2019

Des bibliothèques de lecture publique à la Bibliothèque nationale de France, en passant par les bibliothèques universitaires et départementales, le jeu vidéo a réussi en une dizaine d’années à s’intégrer au sein des collections des établissements français. Comment le jeu vidéo a-t-il été progressivement légitimé en tant que forme de création à part entière ? Quels changements son arrivée a-t-elle induits au sein des bibliothèques ? Quel a été son impact sur les missions et le fonctionnement de nos établissements ? Comment en assurer la médiation ? Nous proposons ici de réaliser un état des lieux de l’introduction du jeu vidéo dans les bibliothèques françaises au cours des dix dernières années, à travers une synthèse des écrits professionnels disponibles.
A simplified correlation between vertebrate evolution and Paleozoic geomagnetism
Authors: Staub John P
Published: October 2019

Background. Despite a fifty-year failure of paleontologists to find a viable connection between geomagnetic polarity reversals and evolutionary patterns, recent paleobiology databases show that the early appearance, radiation, and diversification of Paleozoic vertebrates tends to occur during periods having frequent collapses of the Earth’s geomagnetic field. The transition time during the collapse of the Earth’s protective magnetic shield can last thousands of years, and the effects on biota are unknown. Solar and cosmic radiation, volcanism, climate alteration, low-frequency electromagnetic fields, depletion of ozone, the stripping of atmospheric oxygen, and increasing production of Carbon14 in the stratosphere have been proposed as possible causes, but previous studies have found no effects.

Methods. Using published databases, we compiled a spreadsheet showing the first appearance of 2210 age-dated genera with each genus assigned to one of eleven major taxonomic groups. From Gradstein’s Geologic Time Scale 2012, we delineated 17 Paleozoic zones with either high or low levels of polarity reversals.

Results. From our compilation, 737 Paleozoic vertebrates represent the initial radiation and diversification of individual Paleozoic vertebrate clades. After compensating for sample-size and external geologic and sampling biases, the resulting Pearson’s correlation coefficient between the 737 genera and geomagnetic polarity zones equals 0.89. These results suggest a strong relationship exists between Paleozoic vertebrates and geomagnetism.

Discussion. The question: is this apparent connection between geomagnetism and the evolution of Paleozoic vertebrate due to environmental or biologic factors. If biologic, why are vertebrates the only biota effected? And after an indeterminate period of time, how do vertebrates become immune to the ongoing effects of polarity reversals?
An ancestral apical brain region contributes to the central complex under the control of foxQ2 in the beetle Tribolium
Authors: He Bicheng , Buescher Marita , Farnworth Max Stephen , Strobl Frederic , Stelzer Ernst HK , Koniszewski Nikolaus DB , Muehlen Dominik , Bucher Gregor
Published: October 2019

The genetic control of anterior brain development is highly conserved throughout animals. For instance, a conserved anterior gene regulatory network specifies the ancestral neuroendocrine center of animals and the apical organ of marine organisms. However, its contribution to the brain in non-marine animals has remained elusive. Here, we study the function of the Tc-foxQ2 forkhead transcription factor, a key regulator of the anterior gene regulatory network of insects. We characterized four distinct types of Tc-foxQ2 positive neural progenitor cells based on differential co-expression with Tc-six3/optix, Tc-six4, Tc-chx/vsx, Tc-nkx2.1/scro, Tc-ey, Tc-rx and Tc-fez1. An enhancer trap line built by genome editing marked Tc-foxQ2 positive neurons, which projected through the primary brain commissure and later through a subset of commissural fascicles. Eventually, they contributed to the central complex. Strikingly, in Tc-foxQ2 RNAi knock-down embryos the primary brain commissure did not split and subsequent development of midline brain structures stalled. Our work establishes foxQ2 as a key regulator of brain midline structures, which distinguish the protocerebrum from segmental ganglia. Unexpectedly, our data suggest that the central complex evolved by integrating neural cells from an ancestral anterior neuroendocrine center.
Jagged and Delta-like ligands control distinct events during airway progenitor cell differentiation
Authors: Stupnikov Maria R , Yang Ying , Mori Munemasa , Lu Jining , Cardoso Wellington V
Published: October 2019

Notch signaling regulates cell fate selection during development in multiple organs including the lung. Previous studies on the role of Notch in the lung focused mostly on Notch pathway core components or receptor-specific functions. It is unclear, however, how Jagged or Delta-like ligands collectively or individually (Jag1, Jag2, Dll1, Dll4) influence differentiation of airway epithelial progenitors. Using mouse genetic models we show major differences in Jag and Dll in regulation and establishment of cell fate. Jag ligands had a major impact in balancing distinct cell populations in conducting airways, but had no role in the establishment of domains and cellular abundance in the neuroendocrine (NE) microenvironment. Surprisingly, Dll ligands were crucial in restricting cell fate and size of NE bodies and showed an overlapping role with Jag in differentiation of NE-associated secretory (club) cells. These mechanisms may potentially play a role in human conditions that result in aberrant NE differentiation, including NE hyperplasias and cancer.