76 research outputs found

    Reflexões sobre a presença da mulher instrumentista na música instrumental brasileira de orientação jazzística

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    Neste artigo é apresentada uma abordagem sobre o tema mulheres instrumentistas na música instrumental brasileira de orientação jazzística, problematizando questões relacionadas à minoria feminina nesta prática musical, mediante a articulação do suporte teórico de estudos de música e gênero (McClary, 1991; Tucker, 2002; Wehr, 2016) com depoimentos de quatro musicistas atuantes na cena musical de São Paulo. A partir das reflexões aponta-se para a necessidade de ampliar os estudos nesta área, sugerindo uma perspectiva crítica que considere gênero como categoria analítica para compreender relações de poder estabelecidas no campo (Scott, 1991)

    EXPECTATIVAS DE APRENDIZAGEM RELACIONADAS AO BASQUETEBOL E HANDEBOL NA EDUCAÇÃO FÍSICA: UMA ANÁLISE DA BASE NACIONAL COMUM CURRICULAR (2017)

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    A Base Nacional Comum Curricular (BNCC) é um documento que visa nortear o que é ensinado nas escolas do Brasil inteiro, englobando todas as fases da educação básica, desde a Educação Infantil até o final do Ensino Médio. Dentre essas expectativas, sabemos que os esportes compõem boa parte dos conteúdos a ser trabalhada, durante toda a educação básica, no componente curricular da Educação Física, o que demonstra relevância para o desenvolvimento da cultura corporal do movimento e uma formação integral dos sujeitos

    A Strategic Location Model of Stationary Production Units: A Case study in the Albacora Leste field

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    The imminent interest in issues related to the oil and gas sector has always proved to be a profitable source of investment and research, with incremental gains and innovations in the various sectors of the offshore industry. Particularly in the context of resource localization, the adoption of mathematical models presents itself as a challenging theme. In this context, the research has the purpose of proposing a localization model of Stationary Production Units (SPU) of an oilfield located in the Campos Basin, Rio de Janeiro (Brazil). The computational tests were conducted using the Lingo software, based on data from the Albacora Leste field. The results of the proposed model demonstrated a reduction of approximately 12% in the configuration costs, compared to the current location

    A APRENDIZAGEM DO ADULTO E INICIAÇÃO À NATAÇÃO

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    A natação é um exercício, arte ou esporte de nadar. É considerada um dos exercícios mais completos por movimentar grande parte do músculos e articulações do corpo. Oferece vários tipos de benefícios como liberações de tensões resistência muscular, diminuição de estresse, melhora a circulação sanguínea. No dia 24/10/2017 aplicamos a intervenção na disciplina metodologia e pratica da natação, ministrada pelo professor Erisvan Demones Tavares, oferecida para o 3° semestre do curso de Educação Física Licenciatura. A intervenção que aconteceu na Piscina do Complexo Esportivo Centro Universitário Católica de Quixadá, no período da noite, estávamos um pouco receosos pois não sabíamos como seria a reação dos alunos durante a pratica da atividade

    The effects of individually ventilated cages on the respiratory systems of male and female Wistar rats from birth until adulthood

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    OBJECTIVE: To evaluate the respiratory systems of male and female rats maintained in individually ventilated cages (IVCs) from birth until adulthood. METHODS: Female Wistar rats were housed in individually ventilated cages or conventional cages (CCs) and mated with male Wistar rats. After birth and weaning, the male offspring were separated from the females and kept in cages of the same type until 12 weeks of age. RESULTS: The level of food consumption was lower in male offspring (IVC=171.7±9; CC=193.1±20) than in female offspring (IVC=100.6±7; CC=123.4±0.4), whereas the water intake was higher in female offspring (IVC=149.8±11; CC=99.2±0) than in male offspring (IVC=302.5±25; CC=249.7±22) at 11 weeks of age when housed in IVCs. The cage temperature was higher in individually ventilated cages than in conventional cages for both male (IVCs=25.9±0.5; CCs=22.95±0.3) and female (IVCs=26.2±0.3; CCs=23.1±0.3) offspring. The respiratory resistance (IVC=68.8±2.8; CC=50.6±3.0) and elastance (IVC=42.0±3.9; CC=32.4±2.0) at 300 µm/kg were higher in the female offspring housed in ventilated cages. The ciliary beat values were lower in both the male (IVCs=13.4±0.2; CC=15±0.4) and female (IVC=13.5±0.4; CC=15.9±0.6) offspring housed in individually ventilated cages than in those housed in conventional cages. The total cell (IVC=117.5±9.7; CC=285.0±22.8), neutrophil (IVC=13.1±4.8; CC=75.6±4.1) and macrophage (IVC=95.2±11.8; CC=170.0±18.8) counts in the bronchoalveolar lavage fluid were lower in the female offspring housed in individually ventilated cages than in those housed in conventional cages. CONCLUSIONS: The environmental conditions that exist in individually ventilated cages should be considered when interpreting the results of studies involving laboratory animals. In this study, we observed gender dimorphism in both the water consumption and respiratory mechanics of rats kept in ventilated cages

    Subacute toxicology studies on the aqueous fraction of the ethanol extract of the leaves of Cissampelos sympodialis Eichl. (Menispermaceae) in dogs

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    Cissampelos sympodialis Eichl. (Menispermaceae) has been investigated about its botanical, chemical, pharmacological and toxicological aspects in our laboratory. Previous acute toxicology studies demonstrated that in dogs as well as in Wistar rats, 5 g/kg, p.o., and 2 g/kg, i.p. of the aqueous fraction of the ethanol extract of the leaves of Cissampelos sympodialis (AFL), induced a significant increase in the phosphatase alkaline and gama glutamil tranferase (GGT) levels, that were completely reversed in 15 days after interruption of AFL treatment. The aim of the present work was to investigate the subacute toxicology effects induced by AFL in dogs. We used the methods proposed by Portaria 116/96 of the Secretaria Nacional de Vigilância Sanitária, which regulates studies of toxicity for phytomedicines in Brazil. Daily administration (p.o.) of AFL, 45 mg/kg/day (5 times the dose used by human beings), during 4 weeks, was devoid of any effect on haematological (haemogram and platelets) and on blood biochemical parametes. In conclusion, the present study, using dogs, demonstrated that AFL, in a popularly used dose, by human beings, was devoid of any toxicological effect

    Perfil neuropsiquiátrico de crianças, adolescentes e jovens adultos com complexo de esclerose tuberosa

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    Aim: to assess neuropsychiatric disorders and factors related to the intellectual level of patients with Tuberous sclerosis complex (TSC).Method: a cross-sectional study with 20 patients diagnosed with TSC, recruited in a pediatric neurology center, was conducted. Participants were assessed by semi-structured interviews, medical chart information, the Wechsler Intelligence Scale, the Childhood Autism Rating Scale and the Child Behavior Checklist /Adult Self Report. A descriptive analysis of data was performed for each variable. The Comparison between groups with and without intellectual disability was performed using Mann-Whitney U test and Fisher test. Results: Ninety-five percent of the participants presented epilepsy, 45% intellectual deficit and 25% autistic disorder. The sample also presented clinical manifestations of conduct disorder, anxiety disorder and avoidant personality. There was a significant relationship between intellectual deficit and the following variables: number of medications used for epilepsy (p=0.002), use of benzodiazepine in the treatment of epilepsy (p=0.005) and autism (p=0.008).Conclusion: The sample presented a high prevalence of epilepsy, cognitive deficit and psychiatric disorders, as demonstrated by other studies in similar population. Intellectual deficit was associated with a higher number of drugs used to treat epilepsy and autism.Objetivo: avaliar alterações neuropsiquiátricas e avaliar fatores associados a déficit intelectual em pacientes com Complexo de Esclerose Tuberosa (CET).Métodos: estudo transversal com 20 pacientes com diagnóstico de CET em um centro de neurologia pediátrica, avaliados por entrevista, prontuário, Escalas Wechsler de Inteligência, Escala Childhood Autism Rating Scale e Questionário Child Behavior Checklist /Adult Self Report. Foi realizada análise descritiva para caracterização das variáveis e os testes Mann-Whitney U e Teste de Fisher para comparação de grupo sem e com déficit intelectual.Resultados: Noventa e cinco por cento dos participantes apresentou epilepsia, 45% déficit intelectual e 25% autismo. Encontraram-se ainda manifestações clínicas de problemas de conduta, ansiedade e personalidade esquiva. Houve relação significativa entre déficit intelectual e as seguintes variáveis: número de medicamentos para controle da epilepsia (p=0,002), uso de benzodiazepínicos associados a anticonvulsivantes no tratamento da epilepsia (p=0,005) e autismo (p=0,008).Conclusões: Foi encontrada alta prevalência de epilepsia, déficit cognitivo e manifestações psiquiátricas, condizente com descrições da literatura atual. O déficit intelectual mostrou-se associado a um maior número de fármacos no controle de epilepsia e ao autismo

    Brief Research Report: Expression of PD-1 and CTLA-4 in T Lymphocytes and Their Relationship With the Periparturient Period and the Endometrial Cytology of Dairy Cows During the Postpartum Period

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    The present study sought to evaluate the expression of PD-1 and CTLA-4 in blood T lymphocytes during the periparturient period and their relationship with uterine health in dairy cows, as determined by endometrial cytology and serum concentrations of β-hydroxybutyrate (BHB) and non-esterified fatty acids (NEFAs), which are indicators of a negative energy balance. The second objective of this study was to investigate whether the expression of PD-1 and CTLA-4 in T lymphocytes is associated with the serum acute phase-protein haptoglobin concentration during the periparturient period. To address these objectives, 26 clinically healthy dairy cows were used. Peripheral blood was collected 14 days prepartum (T-14), at calving (T0), and 30 days postpartum (T30) to measure the expression of PD-1 and CTLA-4 in blood T lymphocytes by flow cytometry. In addition, we collected blood at T0, 10 days after parturition (T10), and T30 to obtain serum and determine the serum concentrations of NEFA, BHB, and Hp. Endometrial cytology was performed at T10, 20 days after parturition (T20), and T30. In the present study, we observed higher expression of CTLA-4 and PD-1 in T lymphocytes at parturition and in the prepartum period, which could indicate a relationship between these immune checkpoints and immunological tolerance during gestation in dairy cattle. In addition, a negative association between the expression of these immune checkpoints prepartum or at parturition and endometrial cytology at T20 and T30 was observed, indicating the negative implications of these immune response regulators in susceptibility to infections. This finding was further corroborated by the relationship between the serum concentration of haptoglobin and the expression of CTLA-4 and PD-1 by T lymphocytes. However, we did not observe a relationship between the indicators of negative energy balance, evaluated by the serum concentrations of BHB and NEFA, and the expression of the immune checkpoint markers studied. Thus, our findings represent an initial step that paves the way for the development of new therapeutic alternatives directed by the host with the objective of increasing the resistance of dairy cattle to infections in this critical period of life

    Global Retinoblastoma Presentation and Analysis by National Income Level.

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    Importance: Early diagnosis of retinoblastoma, the most common intraocular cancer, can save both a child's life and vision. However, anecdotal evidence suggests that many children across the world are diagnosed late. To our knowledge, the clinical presentation of retinoblastoma has never been assessed on a global scale. Objectives: To report the retinoblastoma stage at diagnosis in patients across the world during a single year, to investigate associations between clinical variables and national income level, and to investigate risk factors for advanced disease at diagnosis. Design, Setting, and Participants: A total of 278 retinoblastoma treatment centers were recruited from June 2017 through December 2018 to participate in a cross-sectional analysis of treatment-naive patients with retinoblastoma who were diagnosed in 2017. Main Outcomes and Measures: Age at presentation, proportion of familial history of retinoblastoma, and tumor stage and metastasis. Results: The cohort included 4351 new patients from 153 countries; the median age at diagnosis was 30.5 (interquartile range, 18.3-45.9) months, and 1976 patients (45.4%) were female. Most patients (n = 3685 [84.7%]) were from low- and middle-income countries (LMICs). Globally, the most common indication for referral was leukocoria (n = 2638 [62.8%]), followed by strabismus (n = 429 [10.2%]) and proptosis (n = 309 [7.4%]). Patients from high-income countries (HICs) were diagnosed at a median age of 14.1 months, with 656 of 666 (98.5%) patients having intraocular retinoblastoma and 2 (0.3%) having metastasis. Patients from low-income countries were diagnosed at a median age of 30.5 months, with 256 of 521 (49.1%) having extraocular retinoblastoma and 94 of 498 (18.9%) having metastasis. Lower national income level was associated with older presentation age, higher proportion of locally advanced disease and distant metastasis, and smaller proportion of familial history of retinoblastoma. Advanced disease at diagnosis was more common in LMICs even after adjusting for age (odds ratio for low-income countries vs upper-middle-income countries and HICs, 17.92 [95% CI, 12.94-24.80], and for lower-middle-income countries vs upper-middle-income countries and HICs, 5.74 [95% CI, 4.30-7.68]). Conclusions and Relevance: This study is estimated to have included more than half of all new retinoblastoma cases worldwide in 2017. Children from LMICs, where the main global retinoblastoma burden lies, presented at an older age with more advanced disease and demonstrated a smaller proportion of familial history of retinoblastoma, likely because many do not reach a childbearing age. Given that retinoblastoma is curable, these data are concerning and mandate intervention at national and international levels. Further studies are needed to investigate factors, other than age at presentation, that may be associated with advanced disease in LMICs

    Multi-messenger observations of a binary neutron star merger

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    On 2017 August 17 a binary neutron star coalescence candidate (later designated GW170817) with merger time 12:41:04 UTC was observed through gravitational waves by the Advanced LIGO and Advanced Virgo detectors. The Fermi Gamma-ray Burst Monitor independently detected a gamma-ray burst (GRB 170817A) with a time delay of ~1.7 s with respect to the merger time. From the gravitational-wave signal, the source was initially localized to a sky region of 31 deg2 at a luminosity distance of 40+8-8 Mpc and with component masses consistent with neutron stars. The component masses were later measured to be in the range 0.86 to 2.26 Mo. An extensive observing campaign was launched across the electromagnetic spectrum leading to the discovery of a bright optical transient (SSS17a, now with the IAU identification of AT 2017gfo) in NGC 4993 (at ~40 Mpc) less than 11 hours after the merger by the One- Meter, Two Hemisphere (1M2H) team using the 1 m Swope Telescope. The optical transient was independently detected by multiple teams within an hour. Subsequent observations targeted the object and its environment. Early ultraviolet observations revealed a blue transient that faded within 48 hours. Optical and infrared observations showed a redward evolution over ~10 days. Following early non-detections, X-ray and radio emission were discovered at the transient’s position ~9 and ~16 days, respectively, after the merger. Both the X-ray and radio emission likely arise from a physical process that is distinct from the one that generates the UV/optical/near-infrared emission. No ultra-high-energy gamma-rays and no neutrino candidates consistent with the source were found in follow-up searches. These observations support the hypothesis that GW170817 was produced by the merger of two neutron stars in NGC4993 followed by a short gamma-ray burst (GRB 170817A) and a kilonova/macronova powered by the radioactive decay of r-process nuclei synthesized in the ejecta
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