bluuebunny/crossref_metadata_2025 huggingface dataset:
Associação entre atividade física de lazer e conhecimento e participação em programas públicos de atividade física entre idosos brasileiros
Authors: Dourado Thalia Eloisa Pereira Sousa , Borges Paula Agrizzi , Silva Juliana Ilídio da , Souza Rita Adriana Gomes de , Andrade Amanda Cristina de Souza
Published: March 2022

Resumo Objetivo Avaliar a prevalência da atividade física de lazer entre idosos brasileiros e sua associação com conhecimento e participação em programas públicos de promoção dessa prática. Método Estudo transversal com dados de 11.177 pessoas idosas entrevistadas na Pesquisa Nacional de Saúde 2013. A variável resposta foi a prática de atividade física de lazer. As variáveis explicativas foram conhecimento e participação em programas públicos de promoção de atividade física, características sociodemográficas e de estilo de vida. A associação bruta e ajustada foi estimada pela regressão de Poisson com variância robusta. Resultados A maioria das pessoas idosas era do sexo feminino e tinha entre 60 e 69 anos; 17% conheciam, mas não participavam dos programas públicos de promoção de atividade física e somente 3,2% conheciam e participavam. A prevalência de ativos no lazer foi de 13,3%, e na análise ajustada, foi maior entre as pessoas idosas que conheciam, mas não participavam e conheciam e participavam de programas públicos de promoção a atividade física, nos homens, na faixa etária de 60 a 69 anos, com 12 anos ou mais de escolaridade; das regiões Nordeste e Centro-Oeste, com 2 doenças crônicas, que realizaram três ou mais consultas médicas nos 12 últimos meses e consumiam frutas e hortaliças cinco ou mais dias por semana. Conclusão O estudo mostrou uma baixa adesão das pessoas idosas à prática de atividade física, e pouco conhecimento e participação em programas públicos. Esforços são necessários para ampliar a divulgação desses programas, promover o envolvimento da população nessas práticas e contribuir para o envelhecimento ativo.
Associações diretas e indiretas entre autoavaliação de saúde, indicadores objetivos de saúde e neuroticismo em idosos
Authors: Cachioni Meire , Borim Flávia Silva Arbex , Cipolli Gabriela Cabett , Alonso Vanessa , Yassuda Mônica Sanches , Neri Anita Liberalesso
Published: March 2022

Resumo Objetivo analisar associações diretas e indiretas entre autoavaliação de saúde, indicadores objetivos de saúde e neuroticismo em idosos Método Os dados foram extraídos dos registros de seguimento (2016-2017) do Estudo da Fragilidade em Idosos Brasileiros (Estudo FIBRA), de base populacional, sobre fragilidade e fatores associados na velhice. Trezentos e noventa e sete indivíduos com idade a partir de 73 anos no seguimento responderam a um item sobre autoavaliação de saúde. Polimedicação, dor crônica e multimorbidade foram autorrelatadas, fadiga foi mensurada pela CES-D, depressão pela EDG e neuroticismo pelo inventário NEO-PI-R. Foi realizada análise de caminhos, para verificar associações diretas e indiretas entre autoavaliação de saúde, indicadores objetivos de saúde e neuroticismo. Resultados Relações mais robustas foram observadas entre sexo e multimorbidade, depressão e neuroticismo, e neuroticismo e autoavaliação de saúde. Destaca-se que neuroticismo mediou a relação entre idade, dor crônica, multimorbidade e depressão com autoavaliação de saúde. Conclusão O neuroticismo é um importante mediador da relação entre autoavaliação de saúde e indicadores objetivos de saúde. Trabalhos longitudinais são necessários para explicar as relações observadas.
Imagens do progresso: cinema, pintura de história e historiografia na narrativa visual do filme Metrópole de Anchieta (1952), de B. J. Duarte
Authors: SCHNEIDER ALBERTO LUIZ , SANTOS MÁRCIA JULIANA
Published: March 2022

RESUMO Este artigo analisa o filme Metrópole de Anchieta (1952), do diretor e crítico de cinema B. J. Duarte, produzido no contexto dos preparativos para as comemorações do IV Centenário da Cidade de São Paulo. O filme narra a história da cidade, apoiando-se na narrativa histórica produzida em São Paulo na primeira metade do século XX e no discurso visual do Museu Paulista, à época dirigido por Sérgio Buarque de Holanda, que também havia assumido a consultoria histórica da produção. Buscou-se compreender de que maneira o filme dialoga com a historiografia tradicional, a pintura de história e o próprio discurso museográfico do Museu Paulista. O filme faz parte de cultura histórica (conceito de Rüsen) construída a partir de múltiplas camadas de representações para a qual a cultura visual colaborou para exaltar o “progresso” em linha com o regionalismo paulista.
Monumentalizando “ruínas precoces”: o Museu Histórico de Belo Horizonte e a imaginação museal de Juscelino Kubitschek
Authors: BRITTO CLOVIS CARVALHO
Published: March 2022

RESUMO Este artigo analisa como o Museu Histórico de Belo Horizonte consistiu em uma das primeiras manifestações da imaginação museal de Juscelino Kubitschek (1902-1976) e as singularidades desse projeto no contexto museológico brasileiro. Embora existam diversos estudos sobre a trajetória do ex-presidente do Brasil, o seu pensamento sobre museus e patrimônios ainda carece de análises aprofundadas. Desse modo, por meio de análise documental e revisão bibliográfica foram reconstruídos momentos decisivos da concepção do museu, inaugurado em 1943, as estratégias de fabricação de legados e algumas articulações do então prefeito da capital mineira em prol de consolidar seu pensamento museológico, a exemplo da relação com o jornalista Abílio Barreto, organizador da Seção de História do Arquivo Municipal de Belo Horizonte, e com o advogado Rodrigo Melo Franco de Andrade, diretor do Serviço do Patrimônio Histórico e Artístico Nacional. Conclui-se que a criação do Museu Histórico de Belo Horizonte traduz a configuração de uma imaginação museal singular. Nesse aspecto, apesar de não romper com os discursos da maioria dos museus brasileiros de sua época, traduz uma opção pela inserção da história recente que reconhece o museu como um dos espaços na disputa por projetos de futuro.
Good tolerance and benefits should make early exercises a routine in patients with acute brain injury
Authors: Lima Rayssa Bruna Holanda , Muzette Flávia Manhani , Seki Karla Luciana Magnani , Christofoletti Gustavo
Published: March 2022

Abstract Introduction: The negative impact of prolonged immobilization results a physical decline during hospitalization in patients with acute brain injury. Objective: To investigate the benefits of early exercises on the mobility of patients with acute brain injury assisted at an Intensive Care Unit (ICU). Methods: This is a prospective, single-blind, controlled clinical trial. A total of 303 patients were assessed. Due to eligibility criteria, exercise protocol was applied in 58 participants, 32 with brain injury caused by traumatic event and 26 with brain injury caused by cerebrovascular event. Exercise began 24 hours after patients’ admission at the ICU. Participants were submitted to passive and active mobilization protocols, performed according to level of sedation, consciousness and collaboration. Statistical analysis was conducted with repeated measures analysis of variance. Significance was set at 5%. Results: The group of patients with traumatic brain injuries was younger (p = 0.001) and with more men (p = 0.025) than the group of patients with clinical events. Most exercise sessions were performed in sedated patients. By the end of the protocol, participants with traumatic and clinical brain injury were able to do sitting and standing exercises. Both groups were similar on ICU discharge (p = 0.290). The clinical group presented better improvement on level of consciousness than the traumatic group (p = 0.005). Conclusion: Participants with an acute brain injury presented at the time of discharge from the ICU good mobility and improvement in the level of consciousness.
MicroRNA-146a polymorphism is not associated with cardiovascular disease in the elderly
Authors: Moroti-Perugini Layse Rafaela , Cichocki Marcelo , Lima Luana Oliveira de , Oliveira Denise Cristine de , Perrucini Priscila Daniele de Oliveira , Poli-Frederico Regina Célia
Published: March 2022

Abstract Introduction: Cardiovascular diseases (CVD) figure among the most significant causes of morbidity and mortality in the world and, among genetic factors, the literature has demonstrated the crucial role of miRNAs and the relationship of physical activity with this pathology. Objective: To investigate the relationship between the functional capacity of exercise, the level of physical activity, and the polymorphism in the miRNA-146a gene in elderly individuals with and without CVD. Methods: This study, developed in a city in the southern region of Brazil, is characterized as cross-sectional. The sample for this study comprised 342 participants, aged 60 or over. The following aspects were analyzed: anthropometric characteristics, genetic profiles, diagnosis of CVD, functional capacity, and the level of physical activity. Results: A statistically significant association was observed between CVD and body mass index (BMI) (א² = 14.278; p = 0.0003), and 40.6% of elderly individuals with CVD were obese, while 31.5% of the normally developed elderly participants presented normal BMI. However, the genotype frequencies (p = 0.546; א² = 1.211) and 6MWT (p = 0.311; א² = 1.025) did not show a statistically signifi-cant association with CVD. Conclusion: Our results suggest that the polymorphism in the miRNA-146A (rs2910164) and functional capacity are not associated with CVD in the elderly. However, the BMI did demonstrate an association with this disease.
Yoga implications for preventing accidental falls in older adults: a systematic review
Authors: Silva Débora Francielly , Santos Maria Eduarda Rodrigues Alves , Carmo Taciane Silva do , Moura Maria Ester da Cruz , Arruda Iza Paula de Deus e Mello Albuquerque , Pereira Sabrina da Conceição
Published: March 2022

Abstract Introduction: Studies have shown the importance of healthy habits in older adults, emphasizing physical activity or mobility for a better quality of life and to delay physical degeneration in this population. Yoga is one of several exercises recommended for therapeutic purposes to reduce the risk of falls, a common occurrence in this age group. Objective: To synthesize the existing evidence regarding the effects of yoga on quality of life and physical-functional capacity and its contribution to fall prevention in older people. Methods: This systematic review was conducted in August 2020 on the Medline/Pubmed, LILACS, SCOPUS, Web of Science and PEDro databases, with no restrictions for language or year of publication. In line with the eligibility criteria, randomized or quasi-randomized clinical trials were included. Results: A total of 1,190 articles were found, 18 of which were included for data collection. The average sample size was between 16 and 120 participants, consisting of older individuals of both sexes ranging in age from 62 to 85 years. Conclusion: Regular yoga practice has a beneficial effect on the quality of life and physical-functional capacity of older adults, thereby contributing to fall prevention. However, evidence is still limited and further studies are suggested to better elucidate the scope of the effects of yoga as a therapeutic resource.
SEBT in individuals with patellofemoral pain: an integrative review
Authors: Souza Gabriela dos Santos de , Rossato Carla Emilia , Silveira Aron Ferreira da
Published: March 2022

Abstract Introduction: Decreased postural stability can be observed in individuals with patellofemoral pain (PP). The Star Excursion Balance Test (SEBT) is widely used to assess deficits that need to be improved, with different application methods and result presentation formats. Objective: To map SEBT use in individuals with PP, characterizing the studies that applied it to identify different application methods and result presentation formats. Methods: The review included randomized and non-randomized clinical trials, cross-sectional, case-control and cohort studies. Searches were performed in Pubmed and SciElo databases. Data extracted from eligible studies were divided into categories: (I) study characterization (II) SEBT application methods and result presentation formats. Results: A total of 177 studies were identified in the databases, 13 of which were selected. There are a growing number of new studies that assess the dynamic postural control of individuals with PP using the SEBT, and a variety of test application and result presentation formats. Conclusion: The SEBT is a useful, easy-to-apply test that identifies changes in dynamic postural control in individuals with PP. Different application and result presentation formats are in accordance with the literature, but it is recommended that future studies apply the protocols most widely used in previous studies that exhibit a low risk of bias, in order to improve repeatability and comparisons between studies.
Sorção de fósforo de efluente doméstico tratado em lodo de estação de tratamento de água e aplicação do resíduo em solo cultivado com milho
Authors: Arantes Reginaldo Bento de Souza , Fia Ronaldo , Farias Matheus de Sá , Mafra Dayana Cristine Barbosa
Published: March 2022

RESUMO Estudos de remoção de fósforo de efluentes por sorção em resíduos têm ganhado destaque na literatura. Entre estes resíduos, destaca-se o lodo de estação de tratamento de água rico em oxi-hidróxidos de alumínio e ferro. O presente estudo teve como objetivos remover, por sorção, fosfato de esgoto sanitário em reator de escoamento ascendente preenchido com lodo de estação de tratamento de água e comparar a cultura de milho submetida a diferentes fontes de fósforo: adubação convencional (Fonte 1); adubação convencional e lodo de estação de tratamento de água utilizado na sorção do fosfato (Fonte 2); e lodo de lodo de estação de tratamento de água utilizado na sorção do fosfato (Fonte 3). A remoção do fosfato, a partir do lodo de estação de tratamento de água, ocorreu nos três testes. No ensaio de sorção, após tempo de detenção hidráulica de 2,8 h, verificou-se remoção média de 96% de fosfato. Em relação ao aporte de fósforo por diferentes fontes, verificou-se que o emprego do lodo, nos tratamentos Fonte 2 e 3, aumentou o teor de matéria orgânica do solo e proporcionou maior tamponamento dele. Os teores foliares de macro e micronutrientes na cultura apresentaram valores satisfatórios, apesar da senescência de algumas plantas em Fonte 2 e 3. O reaproveitamento do lodo, nas doses aplicadas, foi suficiente para que o material vegetal analisado atingisse teores de chumbo consideráveis, o qual deve ser monitorado na utilização do resíduo no cultivo agrícola.
Avaliação de alumina e carvão ativado conjugados com nanopartículas de prata como pré-tratamentos para nanofiltração visando à redução da incrustação
Authors: Silva Guilherme Otávio Rosa e , Collares Marcelo Garzon Viana , Silva Alexyuss Nogueira Coração de Leão e , Andrade Laura Hamdan de
Published: March 2022

RESUMO A má distribuição geográfica de águas em território nacional aliada ao seu desperdício, à poluição dos cursos d’água próximos aos centros urbanos e industriais e à eficiência inadequada de processos de tratamento convencionais faz com que o tratamento e o reúso de água sejam tópicos de crescente importância no Brasil. Um dos métodos de tratamento de água são os processos de separação por membranas, como a nanofiltração. No entanto, esses processos estão sujeitos ao fenômeno de incrustação, que provoca diminuição gradativa de sua eficiência. Sendo assim, o presente trabalho visou à avaliação de diferentes métodos de pré-tratamento de água para mitigação da formação de biofilme em membranas de nanofiltração. Os processos de adsorção em partículas de alumina e desinfecção por meio de carvão ativado impregnado com nanopartículas de prata foram aplicados em uma amostra de um corpo d’água superficial. As amostras com e sem pré-tratamento foram nanofiltradas e a propensão à incrustação de cada uma foi avaliada. As eficiências de remoção de compostos orgânicos dos adsorventes empregados separadamente e em conjunto e as análises de absorção UV/Vis, microscópio eletrônico de varredura e espectroscopia de energia dispersiva do carvão ativado impregnado com nanopartículas de prata mostraram que os materiais empregados no pré-tratamento puderam ser apropriadamente sintetizados. Foi possível também identificar os principais grupos funcionais dos biopolímeros presentes nos biofilmes formados ao longo do tempo. Por fim, pôde-se observar que a adsorção da matéria orgânica é mais eficiente para o controle da incrustação rápida, enquanto o efeito bactericida se destaca no controle a longo prazo.
Calibração do modelo hidrológico SWMM para a bacia do ribeirão vai e volta — Poços de Caldas, Minas Gerais
Authors: Silveira Alexandre , Cavalcanti Allana Abreu , Menezes Filho Frederico Carlos Martins de , Severino Matheus Franco
Published: March 2022

RESUMO A impermeabilização de áreas em centros urbanos, resultante do processo de ocupação desordenada do solo, contribui para o aumento e a aceleração do escoamento superficial e, consequentemente, para a ocorrência de enchentes e inundações em bacias urbanas. Nesse contexto, atualmente, modelos hidrológicos vêm sendo empregados no desenvolvimento de políticas públicas de gestão das águas urbanas, com vistas à drenagem urbana sustentável. O presente trabalho teve como objetivo usar um modelo hidrológico para a bacia do ribeirão Vai e Volta, localizada no município de Poços de Caldas, Minas Gerais, para simular o hidrograma de cheia em um canal urbano. Utilizou-se o software Storm Water Management Model (SWMM) calibrando o modelo a dados de chuva e vazão medidos. Realizou-se a calibração manual do modelo para dois eventos de precipitação com a obtenção do coeficiente de eficiência de Nash-Sutcliffe (NSE) médio de 0,73 e erros da vazão de pico e do volume escoado inferiores a 15%. O modelo foi validado para outros três eventos distintos e obteve-se ajuste NSE médio de 0,79 e erros da vazão de pico e do volume escoado inferiores a 5%.
Equações adimensionais para determinação de vazões máximas para diferentes tempos de retorno em regiões semiáridas
Authors: Rocha Jefferson Sousa , Lima Neto Iran Eduardo
Published: March 2022

RESUMO Na concepção de obras hidráulicas, como as barragens, necessita-se, para um dimensionamento seguro, de estudos referentes às vazões máximas. O estado do Ceará é caracterizado por apresentar um número elevado de reservatórios projetados por equações empíricas antigas. Entretanto, devido aos poucos dados existentes em algumas regiões, necessita-se transpor informações das regiões monitoradas para as não monitoradas. Este trabalho elaborou modelos de regionalização para a obtenção de vazões máximas para períodos de retorno de 1.000 e 10.000 anos em barragens localizadas no Ceará. As variáveis empregadas nas equações foram: área de drenagem da bacia, comprimento do rio principal, tempo de concentração, precipitação com duração de uma hora e diferença de cota entre o exultório e o ponto mais remoto da bacia. Utilizaram-se os dados de projeto de 30 barragens e calcularam-se as vazões máximas por meio do software HEC-HMS. Os testes estatísticos e os valores dos coeficientes de determinação (0,95) permitem considerar as equações adimensionais propostas consistentes e passíveis de serem utilizadas em análises preliminares de projetos hidráulicos.
EDUCACIÓN TRANSCOMPLEJA EN PERÚ: APROXIMACIONES Y VIGILANCIA EPISTEMOLÓGICA
Authors: Valeriano Hector Adco , Salluca Marisol Yana , Argollo Katia Perez , Salluca Nancy Yana
Published: March 2022

La educación peruana durante el COVID-19 ha cuestionado sus deficiencias y asumido desafíos. El presente estudio desarrolló una aproximación conceptual sobre la importancia de la educación transcompleja como alternativa a la diversidad nacional de Perú, país con una realidad compleja, multidimensional y pluricultural. Dicho acercamiento no se aborda desde perspectivas fragmentadas y simplistas, sino desde una visión transdisciplinaria que permita afrontar satisfactoriamente la problemática actual. La metodología aplicada consistió en la revisión sistemática de artículos y libros publicados en distintas bases de datos, que abarcan el tema de la importancia de la transcomplejización a través del paradigma complejo y la transdisciplinariedad. Como resultados se subraya la necesidad de implementar la educación transcompleja en un país donde los problemas sociales están caracterizados por su multidimensionalidad, diversidad humana y necesidades de mejora educativa para lograr la calidad de vida sostenible y ecológica.
Tiger nut (Cyperus esculentus): Nutrient profiling using HPLC and UV-spectroscopic techniques
Authors: Omeje Kingsley O. , Ozioko Juliet N. , Ezema Benjamin O. , Eze Sabinus O.O.
Published: March 2022

Food insecurity and undernourishment constitute a major challenge in Africa and the world at large. To meet key nutritional targets and tackle the menace of undernourishment, we need to exploit available but underutilised food crops. A common underutilised food crop with the potential to improve daily nutrition is tiger nut. This potential is evidenced in the number of essential amino acids detected, which constitute 74.425% of the entire amino acids detected, in addition to important minerals and vitamins. The nutritional composition of the yellow variety of tiger nut (Cyperus esculentus) was determined using the standard methods of high-performance liquid chromatography and UV-spectroscopy. Ten amino acids were identified and quantified, including six essential amino acids, of which valine had the highest concentration (67.59 μg/100 g), followed by leucine (3.019 μg/100 g), phenylalanine (1.767 μg/100 g), lysine (0.946 μg/100 g), histidine (1.048 μg/100 g) and tryptophan (0.055 μg/100 g). The other amino acids were proline (24.124 μg/100 g), cysteine (1.269 μg/100 g), glycine (0.024 μg/100 g), and glutamine (0.022 μg/100 g). Monosaccharides detected were ribose (41.76%), glucose (21.52%), sedoheptulose (17.94%), fructose (4.566%), rhamnose (1.78%) and mannose (1.58%), whilst disaccharides detected were sucrose (87.66%) and maltose (11.39%). Mineral concentrations were K 144.80 ± 1.10 mg/100 g, Ca 94.39 ± 0.02 mg/100 g, Na 83.92 ± 0.04 mg/100 g, Fe 19.36 ± 0.54 mg/100 g, Mg 17.63±0.13 mg/100 g, Cu 13.28±0.05 mg/100 g and Zn 5.18±0.01 mg/100 g Vitamins A, B2, C and E were detected and quantified as 53.93±1.03, 7.61±1.20, 31.70±1.25 and 128.75±0.74 μg/100 g, respectively. The chemical and nutritional properties of the yellow variety of tiger nut suggest that it is rich in essential amino acids, minerals, and some vitamins. Hence, it should be recommended to persons with nutritional deficiencies as it is cheap and available all year round.
Significance:

The nutritional composition of the yellow tiger nut will assist in meeting the recommended daily intake of essential amino acids, monosaccharides, disaccharides, minerals, and vitamins, thus contributing towards solving the challenge of food insecurity and malnutrition, particularly in the African sub-region.
The rich concentration of these nutrients could be harnessed in the biofortification of food materials known to be deficient in one nutrient or another.
These important attributes of tiger nut, if harnessed, will add value to this underutilised crop and enhance the economic livelihood of the local farmers.
Mandibular ramus morphology and species identification in Australopithecus sediba
Authors: Hawks John , Berger Lee R.
Published: March 2022

The site of Malapa, South Africa, has produced fossil evidence from multiple individuals of Australopithecus sediba including the partial skeletons designated as MH1 (holotype) and MH2 (paratype). A recent article in this Journal presented the hypothesis that MH1 and MH2 are not one species but instead represent two different genera: Australopithecus and Homo, respectively. Here we briefly evaluate this claim. We review the evidence from across the skeleton that demonstrates that MH1 and MH2 represent a single species, and we highlight other fossil samples that show the same pattern of mandibular ramus variation as observed in MH1 and MH2. The evidence shows that there is no reason to separate MH1 and MH2 into different species or genera based upon mandibular ramus morphology. This case illustrates how misleading small fragments of anatomy can be, why researchers should not use such fragments particularly for species and genus-level diagnoses, and why it is essential to use all available evidence.
Significance:This study shows that the mandibular variation that is present in fossils from Malapa attributed to Australopithecus sediba has parallels in both Australopithecus africanus and in Homo. This helps to demonstrate that mandibular form is not sufficient to provide evidence of species diagnosis, but also that the development and adaptations to diet in Au. sediba were overlapping with those present in other related species of hominins.
Sports Shoe for Everyday Activities: The Transformation in Consumption Patterns of Sports Fashion in The Late Nineteenth and Early Twentieth Centuries
Authors: Moghaddasi Mohammad Hossein , Moghaddasi Ahmad
Published: March 2022

The present research is devoted to studying the specifics of sports fashion from the 19th century to the 20th century. Also, it considers the influences on the cultural image for everyday shoes. This paper considers how shoes are designed for sports, but they have been included in daily wear. The evidence is provided that sport's activity has generated insufficient demand, answering to the growing motivations. Reciprocally, manufacturers have promoted sports fashion and casual clothing to create new consumers for an increased production stream. The approaches employed for the basis of the research methodology are included as: theoretical, multifactorial, and systematic-historical. Also, there are used chronological and comparative approaches for analyzing the problems. Thus, the authors suggest that the producers used new stimulation methods, and they attracted the rhetoric of technological novelty as a means of applying the general interest of innovation by advertising. In this regard, further confirmation is that the cultural acceptability parameters for clothing were redefined at the beginning of the twentieth century so that they started to introduce a practical and liberated sporty look in everyday footwear.
Construyendo una mirada postdigital en el aula de Educación Artística
Authors: Mañero Contreras Julia
Published: March 2022

El periodo de crisis sanitaria producido por el COVID-19 ha evidenciado fisuras en términos sociales y económicos, siendo la práctica educativa uno de los principales agentes afectados. Esta crisis sin precedentes deviene en una reflexión por parte de las y los docentes que deben plantearse para qué/quién educa y cómo hacerlo desde el punto de vista pedagógico. Así, una remodelación sustancial educativa implica reconocer nuestro contexto inmediato, un espacio híbrido y mediatizado donde lo analógico y digital se fusionan: un contexto postdigital. Desde una perspectiva filosófica lo postdigital establece una mirada crítica hacia la tecnología, medios y redes de comunicación, y por tanto, es susceptible de implementarse en el aula de educación artística atendiendo al currículum postmoderno que demanda una pedagógica crítica y un cuestionamiento de lo establecido. Este texto presenta una reflexión desde el punto de vista postdigital, educativo y artístico a través de una acción realizada con el alumnado de Educación Primaria durante el curso 2020/2021, curso académico marcado por la tecnología digital, la reconfiguración de la docencia y un consumo masivo de la cultura audiovisual. Los resultados de la práctica propuesta devienen en una comprensión de las artes como vehículo de crítica social y transformación del imaginario colectivo. De esta manera se generaron una serie de acciones artísticas mediante una experimentación e intercreación colectiva implicando a un público receptor de la obra que dota de sentido a la misma.
Sul Ponticello de Triana.
Authors: Calero Jiménez Eva
Published: March 2022

¿Existe suficiente documentación que muestre realmente el rol que el violín ha desempeñado en el flamenco a lo largo de su historia? ¿Qué relación ha mantenido este instrumento con dicho arte? ¿Se conocen aspectos relativos a la interpretación del flamenco a través del violín? El presente artículo pretende llegar a conocer la presencia del violín en el flamenco a lo largo de su andadura como manifestación artística. Para ello, se vuelve especialmente relevante abordar una profunda investigación que localice toda la documentación disponible al respecto y que, por tanto, consiga aportar un corpus de aquellas indagaciones que, tras un estudio concienzudo, se han preocupado por esclarecer el vínculo existente entre ambos campos.
música y la expresión corporal para potenciar la memoria como gimnasia para prevención del Alzhéimer
Authors: Carrascosa Sánchez Carmen , García García Mónica , Ortolá Quintero Ana María
Published: March 2022

El Alzheimer es una enfermedad que se caracteriza por la pérdida de la memoria y se agrava con el tiempo según la Alzheimer’s Association: “los latinos son aproximadamente más propensos a padecer Alzheimer y otras demencias que otros ancianos…”. El presente trabajo se ha desarrollado con el Objetivo de generar una propuesta de bienestar en niños y adultos mayores a partir de los beneficios de la música, la expresión corporal y los procesos creativos como una gimnasia cerebral para potenciar la memoria y prevenir el Alzheimer.
     Utilizando una metodología de investigación acción e investigación basada en la experiencia se ha logrado en los adultos mayores del taller de salud mental del IESS-Manta y en los niños de la Escuela de arte “Vida 9”, establecer una secuencia de ejercicios a partir de la música, expresión corporal y proceso creativo que mejoró la memoria mostrándose como emocional afectiva, garantizando la gimnasia cerebral, y el aprendizaje significativo y cooperativo en la relación interpersonal, intergeneracional e inclusiva. Por lo que se propone este proceso como un espacio de bienestar en las aulas de clase desde la infancia sin que sea una estricta enseñanza académica del arte.
How Does the Positioning of Information Technology Firms in Strategic Alliances Influence Returns to R&D Investments?
Authors: Rahmati Pouya ,   Terry College of Business, University of Georgia, USA, Tafti Ali ,   College of Business Administration, University of Illinois at Chicago, USA, Mithas Sunil ,   Muma College of Business, University of South Florida, USA, Sachdev Vishal ,   Gies College of Business, University of Illinois at Urbana Champaign, USA
Published: March 2022

Because software is fungible, has low marginal replication costs, and requires relatively high levels of initial investment to develop, understanding how IT-producing firms protect and leverage value from their research and development (R&D) investments is important. We examine how the positioning of IT-producing firms within their networks of strategic alliances moderates profits from R&D investments. We posit that alliances with IT-consuming firms generate relation-specific rents that, in turn, protect the value of R&D investments by making software innovations difficult for rivals to appropriate. Among IT-producing firms, we make a distinction between software consulting and services firms and software package-product firms. Our analyses of 464 IT-producing firms for the 14-year period 1996-2009 suggest that IT-producing firms’ returns on R&D investments increase with alliance ties to IT-consuming firms. We also find that alliances with IT-consuming firms have a more beneficial effect on R&D investment returns for software consulting and services firms than for software package-product firms. Our findings yield nuanced insights into how IT-producing firms should position themselves within a network of alliances with IT-consuming firms. We discuss implications for research and practice.
Value Co-Creation in Smart Services: A Functional Affordances Perspective on Smart Personal Assistants
Authors: Knote Robin ,   Research Center for IS Design (ITeG), University of Kassel, Germany, Janson Andreas ,   Institute of Information Management, University of St.Gallen, Switzerland, Söllner Matthias ,   Research Center for IS Design (ITeG), University of Kassel, Germany, Leimeister Jan Marco ,   Research Center for IS Design (ITeG), University of Kassel, Germany / Institute of Information Management
University of St.Gallen, Switzerland
Published: March 2022

In the realm of smart services, smart personal assistants (SPAs) have become a popular medium for value co-creation between service providers and users. The market success of SPAs is largely based on their innovative material properties, such as natural language user interfaces, machine learning-powered request handling and service provision, and anthropomorphism. In different combinations, these properties offer users entirely new ways to intuitively and interactively achieve their goals and thus co-create value with service providers. But how does the nature of the SPA shape value co-creation processes? In this paper, we look through a functional affordances lens to theorize about the effects of different types of SPAs (i.e., with different combinations of material properties) on users’ value co-creation processes. Specifically, we collected SPAs from research and practice by reviewing scientific literature and web resources, developed a taxonomy of SPAs’ material properties, and performed a cluster analysis to group SPAs of a similar nature. We then derived 2 general and 11 cluster-specific propositions on how different material properties of SPAs can yield different affordances for value co-creation. With our work, we point out that smart services require researchers and practitioners to fundamentally rethink value co-creation as well as revise affordances theory to address the dynamic nature of smart technology as a service counterpart.
Investigating the Effects of Dimension-Specific Sentiments on Product Sales: The Perspective of Sentiment Preferences
Authors: Jiang Cuiqing ,   School of Management, Hefei University of Technology, China, Wang Jianfei ,   Corresponding author, School of Management, Hefei University of Technology, China, Tang Qian ,   Singapore Management University, School of Information Systems, Singapore, Lyu Xiaozhong ,   Corresponding author, the 38th Research Institute of China Electronics Technology Group Corporation /
Key Laboratory of Aperture Array and Space Application, China
Published: March 2022

While the literature has reached a consensus on the awareness effect of online word-of-mouth (eWOM), this paper studies its persuasive effect—specifically, dimension-specific sentiment effects on product sales.We examine the sentiment information in eWOM along different product dimensions and reveal different persuasive effects on consumers’ purchase decisions based on consumers’ sentiment preference, which is defined as the relative importance that consumers place on various dimension-specific sentiments. We use an aspect-level sentiment analysis to derive dimension-specific sentiment and PVAR (panel vector auto-regression) models, and estimate their effects on product sales using a movie panel dataset. The findings show that three dimension-specific sentiments (star, genre, and plot) are positively related to movie sales.Regarding consumers’ sentiment preferences, we find a positive relationship to movie sales that is stronger for plot sentiment, relative to star sentiment for low-budget movies. For high-budget movies, we find a positive relationship to movie sales that is stronger for star sentiment, relative to plot or genre sentiment.
Impact of Managerial Responses on Product Sales: Examining the Moderating Role of Competitive Intensity and Market Position
Authors: Huang Yinli ,   Research Center for Contemporary Management, Tsinghua University, China, Jin Yue ,   University of International Business and Economics, China, Huang Jinghua ,   Research Center for Contemporary Management, Tsinghua University, China
Published: March 2022

Online review platforms have become very popular in recent years, generating massive numbers of online reviews and thus enticing numerous enterprises to respond to reviews. Although the economic impact (e.g., sales impact) of managerial responses is well recognized, it is unclear whether such an impact is moderated by competitive intensity and market position. This study examines the moderating effects of competitive intensity and market position in the relationship between managerial responses and sales. Using a panel dataset from one of the largest restaurant review platforms in China, this research found that the influence of the volume of managerial responses to positive word-of-mouth (WOM) on sales declined with increasing competitive intensity and decreasing market position. Moreover, we found the volume and degree of personalization of managerial responses to negative WOM to be more important for enterprises with a low market position versus those with a high market position. Our results provide insights into the effectiveness of managerial responses in different environments. We also offer managerial implications to service providers on response strategies.
Have We Crossed the Uncanny Valley? Understanding Affinity, Trustworthiness, and Preference for Realistic Digital Humans in Immersive Environments
Authors: Seymour Mike ,   University of Sydney, Australia,, Yuan Lingyao (Ivy) ,   Iowa State University, USA, Dennis Alan R. ,   Indiana University, USA, Riemer Kai ,   University of Sydney, Australia
Published: March 2022

Developers have long strived to create virtual avatars that are more realistic because they are believed to be preferred over less realistic avatars. However, an “uncanny valley” exists in which avatars trigger aversion when they are almost but not quite realistic. We used a field study to investigate whether users had different affinity, trustworthiness, and preferences for avatars with two levels of realism, one that was close to human-realistic and one a cartoon caricature. We observed behavior, conducted one-on-one interviews, and collected survey data from SIGGRAPH conference attendees who either participated in a live discussion session between two avatars in a VR environment, or observed it via 3D VR headsets or on a large screen 2D video display. Eighteen sessions were conducted over four days, with the same person animating the human-realistic avatar and different guests animating the caricature avatars. The guests who interacted with the human-realistic avatar had a positive experience in the VR environment. The observers had positive evaluations of both avatars while acknowledging their different levels of realism. They rated the human-realistic avatar as more trustworthy, had more affinity for it, and preferred it as a virtual agent. Participants who observed the interview through VR headsets had an even stronger affinity for the human-realistic avatar and stronger preferences for it than those who observed via the 2D screen. Effect sizes ranged from medium to large. Our results suggest that it is now possible to cross the uncanny valley with human-realistic avatars rendered in real time.
High-Risk Deviant Decisions: Does Neutralization Still Play a Role?
Authors: Trinkle Bradley S. ,   Mississippi State University, USA, Warkentin Merrill ,   Mississippi State University, USA, Malimage Kalana ,   Florida Gulf Coast University, USA, Raddatz Nirmalee ,   University of Memphis, USA
Published: March 2022

Extant research has shown that neutralization processes can enable potential IS security policy violators to justify their behavior and overcome the deterrence effect of sanctions in order to engage in unethical behaviors. However, such sanctions are typically moderate and not career ending. We test the boundary conditions of this theory by evaluating whether neutralization plays a role in overcoming the impact of extreme levels of deterrence. We extend the Siponen and Vance (2010) framework within a professional context that assigns extreme sanctions to violators. Using the scenario-based factorial survey method common in IS security research, we collected data from future auditors who understand these extreme sanctions. We test the reasons that auditors may use to form intentions to falsify information concerning an information security issue with a company’s accounting information system, thereby jeopardizing data integrity and security by modifying working papers to hide irregularities and, by doing so, violating their professional standards, which could result in career-ending sanctions. We empirically validated and tested the theoretical model. Our results show that sanctions play an important role in reducing employees’ intentions to violate policy but that, even under extreme boundary conditions, employees might seek to rationalize their unethical behavior by denying responsibility for their actions through, for example, arguing that their supervisors pressured them into performing the violations. We also establish that messages heightening the awareness and perceptions of the certainty and severity of organizational punishment are likely to attenuate such deviant behaviors. We discuss the implications of these findings and suggest future avenues for research.
Understanding Characteristics of Popular Streamers on Live Streaming Platforms: Evidence from Twitch.tv
Authors: Zhao Keran ,   University of Houston, USA, Hu Yuheng ,   University of Illinois, USA, Hong Yili ,   University of Houston, USA, Westland J. Christopher ,   University of Illinois, USA
Published: March 2022

Live streaming platforms such as Twitch and Periscope have become some of the most popular synchronous social networking services. To attract viewers, streamers are motivated to broadcast exciting video content while actively interacting with viewers. The emerging stream of research on the live streaming community has examined streamers’ motivations and how the viewers react to streamers. However, few studies have focused on understanding the characteristics of popular streamers. Popular streamers create tremendous business value for social media influencer investors, as they have high potential to create persuasive advertisements and endorsements for firms by promoting their products and services. We aim at examining the key characteristics associated with streamers’ viewer base, namely their personality, professionalism, and streaming affordance. Based on text mining and analyses of video content, our results show: (1) certain personality traits (such as openness) are negatively associated with both cumulative and current popularity, (2) professional players are more likely to attract a larger viewer base, and (3) social affordance, including profile building affordance, social connectivity, and social interactivity, is positively associated with both cumulative and current popularity. Our results provide useful insights into measuring and evaluating streamers’ popularity, which can, in turn, generate actionable strategies for social media influencer investors and platform operators.
Comparing Three Theories of the Gender Gap in Information Technology Careers: The Role of Salience Differences
Authors: Harmon Kevin A. ,   Texas Tech University, USA, Walden Eric A. ,   Texas Tech University, USA
Published: March 2022

The information technology (IT) field faces a skills shortage. Only 17% of a projected 3.5 million computing job openings are expected to be filled by 2026 (National Association for Women & Information Technology, 2018). Yet the number of women pursuing IT careers continues to decrease—only 19% of IT bachelor’s degrees in 2016 were awarded to women compared to 57% of bachelor’s degrees overall. We compared three theories that could explain this gender gap in the pursuit of IT careers: expectancy-value theory, role congruity theory, and field-specific ability beliefs theory. We find that women and men are similar in their levels of important factors related to career interest, but that two of these factors—technical learning self-efficacy and agentic goals—have increased salience for women. This suggests that some of the gender gap in the IT field could be addressed by placing more focus on developing technical learning self-efficacy in both men and women. While this could help both women and men, it would likely have an outsized effect on the IT career pursuit of women.
Too Engaged to Contribute? An Exploration of Antecedents and Dual Consequences of Newcomer Engagement in Online Social Groups
Authors: Tsai Hsien-Tung ,   National Taipei University, Taiwan, Pai Peiyu ,   Corresponding author, National Chengchi University, Taiwan
Published: March 2022

Both scholars and practitioners recognize the importance of newcomers’ contribution behavior in online social groups. However, extant research has largely focused on existing members’ behavior, leaving the issue of newcomers’ contribution behavior relatively unexplored. This research proposes a theoretical framework for understanding why newcomers engage in contribution processes, how group engagement leads to normative pressure, and whether normative pressure has curvilinear effects on information contributions. Drawing on the theory of engagement, we propose that newcomer group engagement, characterized by vigor, dedication, and absorption, exerts dual effects on information contributions. We also argue that newcomers who personally engage in contribution processes tend to reveal three key psychological conditions: meaningfulness (i.e., a sense of return on investments of the self in contribution processes), safety (i.e., a sense of being able to show and express oneself without fear of negative consequences), and availability (i.e., a sense of readiness to engage personally in contribution processes). We further investigate a focal antecedent for each psychological condition. Using multisource data collected at three points in time, this research finds that value congruence, perceived group support, and contribution self-efficacy positively influence newcomer group engagement, which in turn leads to greater information contribution behaviors. This study also shows that greater group engagement can initiate a spiral of social role expectations, leading to heightened levels of normative pressure. Moreover, normative pressure has an inverted U-shaped relationship with information contribution behavior. These findings offer both theoretical and practical implications.
Improving the Design of Information Security Messages by Leveraging the Effects of Temporal Distance and Argument Nature
Authors: Schuetz Sebastian W. ,   College of Business, Florida International University, USA, Lowry Paul Benjamin ,   Pamplin College of Business, Virginia Tech University, USA, Pienta Daniel A. ,   Hankamer School of Business, Baylor University, USA, Thatcher Jason Bennett ,   Department of Management Information Systems, Temple University, USA
Published: March 2022

A substantial amount of previous research has examined the efficacy of fear appeals to elicit security-enhancing behaviors from users. However, despite more than a decade of research on fear appeals in security contexts, researchers have yet to understand which factors drive users’ responses to fear appeals. Instead, the literature is riddled with inconsistent findings on the antecedents that predict fear-appeal outcomes, fueling controversy and inhibiting progress on the problem. This research addresses the inconsistent findings by using construal level theory (CLT) to explain how temporal distance and argument nature affect fear-appeal appraisal. Based on two online experiments, we report evidence showing that temporal distance determines which antecedents drive fear-appeal outcomes, which helps explain inconsistent results found in prior literature. Moreover, we found that depending on the temporal distance condition, argument nature (i.e., “how” or “why” arguments) can impact the effectiveness of fear appeals. Overall, our findings refine the understanding of when certain factors influence users’ responses to fear appeals and provide guidance for future research on how to create more effective fear appeals.