The resistance exercises (RE) are currently recommended together physical activity programs as an important auxiliary therapeutic way to improve the cardiopulmonary capacity. The objective was to evaluate acute changes in the cardiovascular system face different methodologies of resistance exercise in healthy adult male. Cross-sectional study composed by 13 volunteers, submitted to 3 different protocols of RE: concentric knee extensors (A1); concentric knee flexors (A2) and super series exercise (A3). To verify the cardiovascular comportment, was measured: blood pressure (BP), heart rate (HR) and heart rate variability (HRV). A significative increment of BP was observed in all methodologies of RE, but A1 and A3 were more exacerbated. The HR showed an ascending behavior between the series of the 3 different forms of RE studied. These changes show us a cardiovascular overload and a vagal suppression differentiated during the different methodologies of RE, being these responses more pronounced during the A1 methodology.

No abstract

In beef cattle production under pasture-based tropical conditions, the minerals most likely to be lacking are Ca, P, Na, Co, Cu, I, Se, and Zn, all of which are required for optimal growth and reproduction. Phosphorous deficiency, in particular, is a major problem for grazing cattle in many tropical regions. On the other hand, reproductive infectious diseases are the greatest threat to the production and profitability of beef cattle herds. To overcome reproductive failure, the present study aimed to evaluate the effects of injectable mineral supplementation and vaccination against reproductive diseases on synchronised Nelore females for fixed-time AI. A total of 1361 females were enrolled, and blood was collected from a random population (n=150) to measure serum antibodies against Leptospira sp., infectious bovine rhinotracheitis, and bovine viral diarrhea, mineral status, and creatinine. With Day 0 as the beginning of the synchronisation programme and Day 10 as the day of fixed-time AI, females were randomly assigned as follows. In the control treatment (n=365), no additional treatment was administered. In the Vaccine treatment (n=314), at Days −21 and 0 females received a 5-mL subcutaneous injection of BovigenRepro (Virbac; inactivated vaccine containing infectious bovine rhinotracheitis 1 and 5; bovine viral diarrhea 1 and 2; Campylobacter fetus ssp. fetus, venerealis, and venerealis biotype intermedius; and Leptospira pomona, wolffi, hardjo prajitno, icterohaemorrhagiae, canicola, copenhageni, bratislava, and hardjo bovis in an adjuvant of 10% Al(OH)3 with Se). In the Suppl treatment (n=314), at Day 0 females received a 15-mL intramuscular injection of Fosfosal (Virbac; 100mL containing Na glycerophosphate (14g), monosodium phosphate (20.1g), copper chloride (0.4g), potassium chloride (0.6g), magnesium chloride (2.5g), and sodium selenite (0.24g). In the SupplVacc treatment (n=363), females received a 5-mL subcutaneous injection of the vaccine at Days −21 and 0 as well as a 5-mL intramuscular injection of Fosfosal at Day 0. Pregnancy was verified by transrectal ultrasound at Days 40 and 100. Body condition score was recorded on Days −21 and 40. Data were analysed using the GLIMMIX procedure of SAS (SAS University edition, SAS Institute Inc.). When significant, Tukey and least squares means tests were used to compare means. Serum analysis showed that 89% of the animals had seroprevalence to at least two diseases. Average blood P concentration was 7.2mg dL−1. Pregnancy was affected by Ca levels (pregnant=2.55mg dL−1; non-pregnant=2.33mg dL−1; P<0.05) and creatinine levels (pregnant=5.85mg dL−1; non-pregnant=5.76mg dL−1; P<0.05). The average BCS was 3.2 (1=skinny; 5=fat), and there was no effect of time (Days −21 to 40). Pregnancy verified by transrectal ultrasound at Day 40 for the Vaccine, Suppl, SupplVacc, and control treatments was 54, 52, 57, and 49% (P=0.11), respectively. There was a tendency of higher pregnancy verified by transrectal ultrasound at Day 90 for the SupplVacc group (55%) compared with the control group (45%; P<0.1). There was no effect of pregnancy loss among groups that were vaccinated (control=6%, vaccine=5%, Suppl=4%, and SupplVacc=3%). Considering only pluriparous cows, there was an increase in pregnancy per AI in the SupplVacc group (59%) compared with the control group (51%; P<0.05). Once females presented a very good BCS, the supplement effect was only an immunostimulant. Starting a breeding season with supplementation and vaccination can increase pregnancy rate and profitability for farmers.

No abstract

A alvenaria modular vem ganhando uso no mercado brasileiro. Os Tijolos Ecológicos são assim chamados porque evitam a utilização do processo de queima de madeira e combustível, evitando corte de árvores e emissão de monóxido de carbono na atmosfera. O objetivo dessa pesquisa foi construir uma sala de aula de 24 m², no Instituto Federal de Mato Grosso – Campus Cuiabá Bela Vista, com tijolo ecológicos fabricados com agregados de resíduo da construção civil (RCC) e cimento Portland. Essa sala foi construída pelos alunos do Campus Cuiabá Cel. Octayde Jorge da Silva, Campus Cuiabá Bela Vista e a comunidade entorno, onde além da construção para a melhoria do Campus foi ensinado a comunidade um método construtivo mais econômico e sustentável. O traço do tijolo utilizado foi 1:9 (cimento e agregado reciclado direto do britador). Os tijolos oferecem um excelente comportamento térmico e durabilidade. A produção dos tijolos ocorreu em prensa hidráulica, fabricados pelos próprios alunos em outros projetos. O radier onde a sala foi confeccionada foi executado por empresa contratada pelo Campus. As paredes foram montadas por encaixe, facilitando o assentamento e reduzindo o tempo de execução. Os tijolos foram assentados com argamassa colante para uso externo ACIII, adicionando na mistura cola de PVA com o traço 1:20 sendo (1 de cola para 20 de argamassa colante) e água. As paredes foram grauteadas utilizando um microconcreto. O traço do Grout utilizado para preenchimento dos furos dos tijolos foi (1:1,94:3,06), respectivamente cimento, areia e pedrisco, relação água/cimento 0,48. A avaliação dos tijolos quanto a resistência à compressão axial foi de 4,9 MPa, satisfatória de acordo com a NBR 8492 (ABNT, 2012), o tijolo possui dois furos, faz com que aumente o isolamento termoacústico, pois os furos compõem câmaras de ar no âmago das alvenarias, sendo utilizados para passar as tubulações de hidráulica e elétrica, evitando assim rasgo e corte nas paredes, proporciona acabamento aparente externa e internamente. A avaliação da sala está ocorrendo em uso pela comunidade do Campus Bela Vista nestes três anos de forma satisfatória. A utilização do agregado reciclado na construção civil devolve ao setor produto de qualidade, durabilidade com responsabilidade ambiental e social.