Cardiovascular Responses Induced by Catalase Inhibitior into the Fourth Cerebral Ventricle is Changed in Wistar Rats Exposed to Sidestream Cigarette Smoke

Objectives: This experimental study aimed to evaluate the effects of central catalase inhibition on cardiovascular responses in rats exposed to sidestream cigarette smoke (SSCS) for 3 weeks. Methodology: A total of 20 males Wistar rats (320–370g) were implanted with a stainless steel guide cannula into the fourth cerebral ventricle (4thV). Femoral artery and vein were cannulated for mean arterial pressure (MAP) and heart rate (HR) measurement and drug infusion, respectively. Rats were exposed to SSCS for three weeks, 180 minutes per day, 5 days/week [carbon monoxide (CO): 100–300 ppm)]. Baroreflex was tested with one pressor dose of phenylephrine (PHE, 8 μg/kg, bolus) and one depressor dose of sodium nitroprusside (SNP, 50 μg/kg, bolus). Cardiovascular responses were evaluated before and 15 minutes after 3-amino-1, 2, 4-triazole (ATZ, catalase inhibitor, 0.001g/100μL) injection into the 4th V. Results: Vehicle treatment into the 4th V did not change cardiovascular responses. Central catalase inhibition increased tachycardic peak, attenuated bradycardic peak and reduced HR range at 15 minutes, increased MAP at 5, 15 and 30 min and increased HR at 5 and 15 min. In rats exposed to SSCS, central ATZ increased basal MAP after 5 min and increased HR at 5, 15 and 30 minutes, respectively, and attenuated bradycardic peak at 15 minutes. Conclusion: This study suggests that brain oxidative stress caused by SSCS influences autonomic regulation of the cardiovascular system.

Cardiovascular responses induced by acute video game boxing performance in healthy women

BACKGROUND: Previous studies suggested that some interactive video games induce cardiovascular responses. However, some different styles of video games have not been investigated. OBJECTIVE: We aimed to evaluate cardiovascular responses induced by video game boxing performance in healthy women. METHOD: We evaluated ten female sedentary volunteers, aged 20.9 ± 1.4 years, weight 58.7 ± 8.0 kg, height 163.2 ± 5.4cm. All subjects were weighed and measured. Their heart rate, blood pressure and lactate levels were recorded before and after video game performance. The volunteers played a Sony video game (Nintendo® Wii) by using the boxing method, in which all volunteers played for 10 minutes without interruption. At the end of the game the volunteers were reassessed using the same parameters mentioned above. RESULTS: At the end of the video game boxing performance we observed highly significant increases of lactate production (p < 0.0035) and the double product (heart rate vs. systolic blood pressure) was also higher (p < 0.0001). Both parameters indicate that the performance increased demands of the cardiovascular system. CONCLUSION: We conclude that a ten-minute video game boxing performance induces cardiovascular responses similar to aerobic exercise. This may be a practical form of exercise, but care should be exercised concerning subjects with cardiovascular disorders.

Auditory stimulation with music influences the geometric indices of heart rate variability in men

Background: Chronic classical music was reported to increase parasympathetic activitywhen evaluating heart rate variability (HRV). It is poor in the literature investigation of the acute effects of baroque and heavy metal styles of musical auditory stimulation on HRV. In this study we evaluated the acute effects of relaxant baroque and excitatory heavy metal music on the geometric indices of HRV in healthy men. Method: The study was performed in 12 healthy men between 18 and 30 years old. We excluded persons with previous experience with music instrument and those who had affinity with the song styles. We analyzed the following indices: RRtri, TINN and Poincaré plot (SD1, SD2 and SD1/SD2 ratio). HRV was recorded at rest for ten minutes. Subsequently they were exposed to relaxant baroque or excitatory heavy metal music for five minutes through an earphone. After the first music exposure they remained at rest for more five minutes and them they were exposed again to Baroque or Heavy Metal music (65–80 dB). The sequence of songs was randomized for each individual. Results: The RRTri and SD2 indices were reduced during the heavy metal musical auditory stimulation (p < 0.05). No changes were observed regarding TINN, SD1 and SD1/SD2 ratio (p > 0.05).The qualitative Poincaré plot analysis indicated that during relaxant classical baroque music there was observed a higher beat-to-beat dispersion of RR intervals compared with no music exposure and during excitatory heavy metal musical auditory stimulation, showing higher HRV. Conclusion: We suggest that excitatory heavy metal music acutely decreases global HRV.

Acute auditory stimulation with different styles of music influences cardiac autonomic regulation in men

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

E da carne se fez verbo: um estudo sobre a obra Lavoura Arcaica de Raduan Nassar (1975), a partir do filme de Luiz Fernando Carvalho (2001)

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Sound absorption coefficient in situ: An alternative for estimating soil loss factors

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Grupos juvenis na escola e na cidade: estudo a partir da escola estadual fernando costa, de Presidente Prudente/SP

This work is the result of previous studies, such as the undergraduate research project and the “Núcleo de Ensino” project, which were based on knowledge of young residents of Presidente Prudente - SP. The present study aims to interpret and understand the ways the students experience the school and the city. To get results we studied the high school students of State School Fernando Costa, known as IE, located in the heart of the city. The research development came from the Participant Observation, after the use of questionnaires, interviews and finally the completion of a Focus Group. Finally, there is the consideration of the material collected in the practice, their school experiences and City entertainment. Following the conclusions drawn from this study

O diálogo intertextual em O Grande Mentecapto, de Fernando Sabino

O presente estudo discute o diálogo intertextual existente entre o romance brasileiro O Grande Mentecapto, de Fernando Sabino, e outras obras de escritores mineiros, explicitando as transformações que as obras citadas ou referidas provocam no discurso do romance em questão. Com um olhar mais atento sobre o plano discursivo da obra, podemos perceber a presença de um jogo lúdico e burlesco, típico do discurso carnavalizado, com as fronteiras entre o real e o fictício, onde o diálogo intertextual se insere.

Bioenergia: desenvolvimento, pesquisa e inovação

Com 27 trabalhos produzidos por pesquisadores do Instituto de Pesquisa em Bioenergia (Bioen), da Unesp, este livro oferece uma ampla visão sobre as áreas que compõem o segmento. Seu principal objetivo é contribuir para melhorar a compreensão dos vários aspectos da bioenergia, em especial no Brasil, que figura entre os países com maior nível de desenvolvimento tecnológico no setor. Os artigos abordam uma série abrangente de questões relacionadas à bioenergia, como a construção genética das plantas de cana-de-açúcar visando ao aumento de produtividade, a disseminação de sementes para estimular a propagação de espécies com potencial energético, etapas de produção de bioenergia, usos do combustível e seus efeitos nos diversos tipos de motores. Agrupados por assunto, os textos estão distribuídos em cinco partes: Biomassa para bioenergia; Produção de biocombustíveis; Utilização de bioenergia; Biorrefinaria, alcoolquímica e oleoquímica e Sustentabilidade dos biocombustíveis.

Dressed perturbation theory for the quark propagator: Fernando Enrique Serna Algarín. -

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Caio Prado Jr. e o intelectual marxista hoje

This article proposes to engage in dialogue with the work and the trajectory of Caio Prado Júnior, one of the most influential historians and Marxist intellectuals of Brazil. The intention is not to evaluate his production in detail, nor follow the relationships she had with the Brazilian society and the historian’s political options, something already conducted by several researchers. Instead, its intention is to “use” his trajectory and style to freely reflect on some traces of Marxism in Brazil and especially on certain dilemmas inherent in the performance of the Marxist intellectuality. Caio Prado Jr. will, therefore, be treated here as a parameter for a broader reflection on the intellectuals.

Por uma educação dos sentidos: as realizações artísticas do diretor Luiz Fernando Carvalho

Director Luiz Fernando Carvalho’s artistic performances, specially the miniseries Hoje é dia de Maria (2005), A Pedra do Reino (2007) and Capitu (2008), target a true setting of commitment, preoccupation and conciliation towards its spectator’s education. And the purpose of this text is to talk about such reeducation of senses explored by Carvalho’s artistic performances.

Configurando um AVO (Ambiente Virtual Anise de Abreu Gonçalves D'Orange Ferreira de Orientação): instrumentação de um professor em proposta de incentivo ao uso de TIC e AVA no nível de pós-graduação

In this paper, I will present a proposal for teachers’instrumentation in ICT by the configuration of a virtual learningenvironment (MOODLE) for advising Linguistics graduate students’projects on teacher education and language teaching mediated by digitaltechnologies. The context of the proposal is teaching as work,occasioned by an announcement from the IHE to encourage the use ofICT. Following the theoretical assumptions adopted by the ALTERresearch group, and confronted with the goals set in the text of theannouncement, the instrumentation involved the reorganization ofcontents provided by a graduate course in the research process steps:planning, implementation and dissemination, and of the artifactsaffordances: information, communication and production.

Post-Scriptum. Fernando Henrique Cardoso, Alberto Fujimori y la solución del conflicto con Ecuador

PACARINA DEL SUR - REVISTA DEL PENSAMIENTO CRITICO LATINOAMERICANO é uma publicação eletrônica publicada em Mexico, D.F. É publicada 4 vezes por ano. É uma publicação muito aceita e prestigiada internacionalmente.