96 research outputs found

    Why, When, and How Much to Entertain Consumers in Advertisements? A Web-Based Facial Tracking Field Study

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    The presence of positive entertainment (e.g., visual imagery, upbeat music, humor) in TV advertisements can make them more attractive and persuasive. However, little is known about the downside of too much entertainment. This research focuses on why, when, and how much to entertain consumers in TV advertisements. We collected data in a large scale field study using 82 ads with various levels of entertainment shown to 178 consumers in their homes and workplaces. Using a novel web-based face tracking system, we continuously measure consumers' smile responses, viewing interest, and purchase intent. A simultaneous Bayesian hierarchical model is estimated to assess how different levels of entertainment affect purchases by endogenizing viewing interest. We find that entertainment has an inverted U-shape relationship to purchase intent. Importantly, we separate entertainment into that which comes before the brand versus that which comes after, and find that the latter is positively associated with purchase intent while the former is not

    A estética do acaso em "A céu aberto", de João Gilberto Noll

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    Este artigo procura demonstrar de que maneira o principio do acaso, tão caro à literatura ocidental, sobretudo após a revolução estética de Mallarmé, existe enquanto força-motor do processo de construção do romance A céu aberto, de João Gilberto Noll. Filho de um tempo de crise, a da representação, o autor gaúcho lança mão das ideias mallarmelianas para enfrentar as dificuldades narrativas que seu tempo lhe impõe. Abandona então a tradição milenar dos preceitos aristotélicos para forjar uma nova escrita ficcional, sintonizada agora com as novas concepções do fazer literário.&nbsp

    Injuries to Crossfit practitioners: narrative review

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    Introdução: O CrossFit tem como pilar o desenvolvimento do condicionamento físico e está se difundindo entre a população, tanto em modalidades competitivas quanto não competitivas. O treinamento faz uso de três padrões para orientar o condicionamento físico: desenvolvimento de habilidades, como resistência e força; bom rendimento em toda atividade; e competência e desenvolvimento das vias determinantes do condicionamento metabólico. Objetivo: Reunir os tipos mais frequentes de lesões provocadas pela prática de CrossFit e as causas e os fatores de risco para o desenvolvimento destas. Metodologia: A revisão da literatura foi realizada ao longo dos meses de outubro e novembro de 2021, por meio das bases de dados PubMed, BVS, LILACS e IBECS, utilizando os termos MeSH “high intensity interval training”, “sports injury” e “injury”. Resultados: Foram inseridas 8 publicações neste estudo, após a aplicação dos critérios de inclusão e exclusão e foi confeccionada uma tabela com os principais achados de cada estudo. Os resultados encontrados foram subdivididos em 4 grupos relacionados a: MMSS; MMII; tronco e coluna; fatores de risco para lesões. As lesões de ombro e joelho são as mais prevalentes, e há necessidade de mais estudos sobre lesões de coluna e tronco. No que tange aos fatores de risco para o desenvolvimento de lesões, as correlações entre tempo de prática do CrossFit, frequência de treinos e participação de competições não são bem definidas. Conclusão: As prevalências das lesões divergem entre os estudos, todavia as lesões de ombro são mais predominantes em MMSS, joelhos, em MMII e região lombar, na coluna vertebral. Apesar da literatura escassa sobre o tema, torna-se evidente a necessidade de acompanhamento por meio de profissionais capacitados para evitar a ocorrência de lesões.Introduction: CrossFit is a training program based on fitness development which has been gaining popularity, both in its competitive and non-competitive modes. The training uses three standards to guide physical conditioning: development of skills, such as endurance and strength; good performance in all tasks; and competency and training of pathways that determine metabolic conditioning. Objective: To assess the most frequent types of injuries associated with CrossFit training and the causes and risk factors for their occurrence. Methodology: The literature review was conducted between October and November 2021 in the PubMed, BVS, LILACS and IBECS databases, using the MeSH terms “high intensity interval training”, “sports injury” and “injury”. Results: After applying the inclusion and exclusion criteria, eight studies were used in the review and a table with the main findings of each one was created. The results found were divided into 4 groups, referring to: upper limbs; lower limbs; trunk and spine; and risk factors for injuries. Shoulder and knee injuries were the most prevalent, and there is a need for further studies on spinal and trunk injuries. As for risk factors for the occurrence of injuries, the correlations between CrossFit experience, training frequency, and participation in competition are not well defined. Conclusion: The studies found different values of prevalence, but agreed that shoulder injuries were more prevalent in the upper limbs, knee injuries in lower limbs, and lumbar injuries in the spine. Despite the scarcity of literature on the subject, there is a clear need for the supervision of trained professionals in order to avoid injuries

    MANIFESTAÇÕES ORAIS EM PACIENTES HIV SOROPOSITIVOS - REVISÃO DE LITERATURA

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    A principal característica da infecção pelo vírus da imunodeficiência humana (HIV) é a diminuição da imunidade do indivíduo, tendo como consequência o aparecimento de infecções oportunistas

    Gastric metastasis as the first manifestation of an invasive lobular carcinoma of the breast

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    Gastrointestinal metastases from breast cancer are rare and generally occur several years after the diagnosis of the primary lesion. The diagnosis of gastric metastasis as the initial presentation of breast cancer is even rarer and can potentially mimic gastric carcinoma. We report the case of a 66-year-old female patient submitted to a total gastrectomy because of the histological diagnosis of undifferentiated gastric carcinoma. During the surgical procedure, biopsies of the peritoneum and the liver were performed, which were consistent with metastatic breast invasive lobular carcinoma (ILC). The primary lesion of the breast was detected during the post-operative period, when a 4-cm-long lesion was detected on physical examination and mammography. The revision of the gastric biopsy confirmed the diagnosis of ILC. The authors call attention to the rarity of gastrointestinal metastases as the initial presentation of breast ILC

    Wooden breast e white striping : ocorrência em três empresas avícolas

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    To increase the amount of meat produced, researchers have promoted intensive genetic selection for growth rate and muscling and have improved nutrition and management conditions. However, there has been an increase in the number of reports of breast muscle myopathies observed in poultry processing plants, including white striping (WS) and wooden breast (WB). This study aimed to evaluate and to compare the occurrence of WS and WB myopathies in three poultry processing plants and to perform an anatomopathological characterization, including macroscopic and microscopic analyses. A total of 408,334 carcasses were condemned or downgraded due to the presence of WB or WS, which represents 0.73% of the total number of slaughtered animals during the evaluated period. WB was more frequent than WS, but the occurrence of each myopathy varied significantly according to each establishment. WB was more frequent in the establishment which includes only male flocks, an average age of 45 days, and an average live weight of 2775g (B). WS was more frequent in establishment with male, female and mixed flocks, average ages ranging from 41 to 44 days, and average live weight 1731g-2830g (A). It is probably related with specific condition of each poultry company, including genetics, age, nutrition and management conditions. Macroscopically, WB and WS lesions are characterized by hypertrophy and stiffness of the pectoralis major muscle. Under microscopy, the myopathies showed similarities regarding the detected histological abnormalities, characterized by a process of myodegeneration, although the connective tissue infiltrate was more severe in the breasts with WB than in those with WS myopathy. The results found in this study demonstrate that the rates of condemnation for these myopathies are high, vary significantly among the analyzed companies and may cause major economic losses for the productive sector in the region.Para melhorar a quantidadede carne produzida, os pesquisadores têm promovido ao longo dos anos uma seleção genética intensiva para a taxa de crescimento e desenvolvimento de músculos, além de melhorias nas condições nutricionais, sanitárias e de manejo. No entanto, houve um aumento no número de relatos de miopatias dos músculos do peito observados em abatedouros-frigoríficos de aves, incluindo white striping (WS) e wooden breast (WB). O objetivo deste estudo foi avaliar a ocorrência de WB e WS em três abatedouros-frigoríficos de aves e realizar uma caracterização anatomopatológica, incluindo análises macroscópicas e microscópicas. Um total de 408.334 carcaças foi condenado (total ou parcialmente) devido à presença WB ou WS, o que representou 0,73% do número total de animais abatidos durante o período avaliado. Apesar de a ocorrência de WB ter sido maior do que a de WS, a frequência de cada uma variou significativamente de acordo com o estabelecimento. WB foi mais frequente no estabelecimento que incluía apenas lotes de machos, com média de 45 dias de idade e peso médio ao abate de 2775g (B). WS foi mais frequente no estabelecimento com lotes de machos, fêmeas e mistos, com idade entre 41 e 44 dias e peso médio ao abate entre 1731g-2830g (A). Isto pode ser justificado por condições específicas de cada empresa, incluindo genética, idade das aves, nutrição e condições de manejo. Macroscopicamente, as lesões de WB e de WS foram caracterizadas principalmente por hipertrofia e rigidez do músculo pectoralis major. À microscopia, ambas as miopatias mostraram semelhanças em relação às anormalidades histológicas detectadas, caracterizadas principalmente por um processo de miodegeneração. Nos músculos apresentando WB, o infiltrado de tecido conjuntivo foi mais intenso quando comparado àqueles com WS. Os resultados encontrados neste trabalho demonstram que os índices de condenação por essas miopatias são altos, variam significativamente entre as empresas analisadas e podem causar grandes perdas econômicas para o setor produtivo da região

    Testicular Morphological and Ultrasonographic Characterization of Male Gray Brocket Deers (Mazama gouazoubira) in Different Reproductive Status

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    Background: Gray brocket deer (Mazama gouazoubira) populations have been declining due to human intervention. Yet, only a few studies have assessed ultrasonographic testicular characteristics in cervids. Considering the relevance of monitoring testicular size, blood flow, and parenchyma, the present study aims to establish baseline information on scrotal circumference, testicular volume, and spectral Doppler parameters, to describe differences among adult male gray brocket deer in different reproductive status, and to correlate ultrasound parameters with testes size measurements.Materials, Methods & Results: Six adult male gray brocket deers were used in the study. Scrotal circumference and testicular volume were measured. B mode ultrasound images of testes (longitudinal and cross-sectional views) and epididymes were subjected to computer-assisted analysis, obtaining the numerical pixel values (NPV) and pixel standard deviation (PSD). Using spectral Doppler, supratesticular artery blood flow velocities (peak systolic velocity - PSV, end diastolic velocity - EDV, time-average maximum velocity - TAMAX, resistivity - RI and pulsatility indices - PI) were obtained. Semen was analyzed through total motility, vigor, and concentration tests. Three animals were normospermic (F+ group) and three were oligo/azoospermic (F- group). Groups were compared using were compared using a one-way ANOVA or Kruskal-Wallis followed by Student-Newman-Keuls (SNK) test. Ultrasound parameters were correlated to testes size parameters using Pearson’s correlation for parametric variables and Spearman’s correlation for non-parametric variables. F+ group presented significantly higher scrotal circumference (14.57 ± 1.19 cm), testicular volume (26.18 ± 4.94 cm3), and testes cross-sectional NPV (69.88 ± 24.00) and PSD (10.78 ± 3.42) than group F- (NPV: 28.26 ± 13.75, PSD: 6.70 ± 1.84). No significant differences were observed between the groups regarding the spectral Doppler ultrasound parameters. Significant correlations were observed between scrotal circumference and longitudinal (r = 0.76) and cross-sectional testes NPV (r = 0.89), and testicular volume was correlated with longitudinal (r = 0.78) and cross-sectional testes NPV (r = 0.91) and with cross-sectional testes PSD (ρ = 0.82).Discussion: Increased testicular echogenicity (higher NPV) has been positively associated with improved testicular growth, cell population expansion, inner and outer seminiferous tubules diameter, spermatids percentages and testis weight. In addition, more heterogenous testes (higher PSD) were associated with higher sperm output. It was suggested that the animals in group F- had compromised testicular development and spermatogenesis. The correlation observed between testes NPV and scrotal circumference was proposed to be associated with seminiferous tubules impairment. The F- group showed lower testicular volume, NPVs and PSDs in cross-sectional testicular images, suggesting higher protein levels and lower lipid contents were present in their parenchyma, influencing in testicular echogenicity and echotexture. No differences in spectral Doppler parameters were observed between the two groups. Also observed in stallions. However, PSV, EDV, TAMAX could be potential infertility indicators in other mammalians. These different results may be due to different locations of the evaluated vessel, species and techniques, age, ambient temperature, pathological conditions, and anaesthesia. Thus, it is suggested that scrotal circumference, testicular volume, and testes NPV are good indicators of male reproductive health in gray brocket deer and may help with better male selection in the species

    Testes para avaliação dos movimentos do ombro: confiabilidade e influência do número de repetições

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    This study aimed at investigating intrarater and interrater reliability of four clinical assessment tests of movements of the shoulder articular complex, also investigating the influence of the number of repetitions on tests reliability. Thirty-two healthy individuals (aged 21.06±4.01) were assessed twice, one week apart. Two evaluators applied four tests: anterior translation of the humeral head, scapular winging, scapular adduction andexcessive scapular elevation, recording responses after five repetitions(procedure A) and after consistency check (procedure B). Kappa coefficient, Fisher exact and Z tests were used for data analysis; significance level was set at 0.05. Kappa coefficients obtained for intrarater and interrater agreement varied from 0.41 to 0.80, considered moderate to substantial. No significant difference was found between Kappa coefficients for procedures A and B (p p≥0,083). Kappa coefficients for the agreement between the responses obtained in procedures A and B varied from 0.93 to 0.96, which are considered excellent. Results thus show that the tests may be used in clinical practice for the assessment of patients' evolution and to exchange information between raters. Increase in the number of repetitions did not alter tests reliability neither responses.O estudo visou investigar a confiabilidade intra e interexaminadores de quatro testes que avaliam os movimentos do complexo articular do ombroe a influência do número de repetições na confiabilidade dos testes. Trinta e dois indivíduos saudáveis (21,06±4,01 anos) foram avaliados duas vezes com um intervalo de uma semana. Dois examinadores aplicaram os testes de translação anterior da cabeça do úmero, alamento escapular, adução escapular e elevação excessiva da escápula, registrando respostas após cinco repetições (processo A) e após ser observada a consistência (processo B). Os dados foram analisados estatisticamente pelos testes Fisher, Z, e aplicando-se o coeficiente Kappa, com nível de significância de 0,05. Os coeficientes Kappa obtidospara as confiabilidades intra e interexaminadores variaram de 0,41 a 0,80, consideradas entre moderada e substancial. Não houve diferença significativa entre as confiabilidades dos processos A e B (p≥0,083). Os coeficientes Kappa da investigação da concordância entre as respostas obtidas nos processos A e B variaram de 0,93 a 0,96, sendo consideradas excelentes. Os testes apresentaram pois confiabilidade que variou de moderada a substancial, podendo ser utilizados clinicamente para avaliação da evolução de pacientes e troca de informações entre examinadores. O aumento do número de repetições não alterou a confiabilidade nem as respostas dos testes

    Gastric metastasis as the first manifestation of an invasive lobular carcinoma of the breast

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    Gastrointestinal metastases from breast cancer are rare and generally occur several years after the diagnosis of the primary lesion. The diagnosis of gastric metastasis as the initial presentation of breast cancer is even rarer and can potentially mimic gastric carcinoma. We report the case of a 66-year-old female patient submitted to a total gastrectomy because of the histological diagnosis of undifferentiated gastric carcinoma. During the surgical procedure, biopsies of the peritoneum and the liver were performed, which were consistent with metastatic breast invasive lobular carcinoma (ILC). The primary lesion of the breast was detected during the post-operative period, when a 4-cm-long lesion was detected on physical examination and mammography. The revision of the gastric biopsy confirmed the diagnosis of ILC. The authors call attention to the rarity of gastrointestinal metastases as the initial presentation of breast ILC
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