Influência da hipermobilidade articular na performance e incidência de lesões no atleta de natação = : Influence of articular hypermobility in the performance and incidence of injuries in the athlete swimming

Universidade Estadual de Campinas . Faculdade de Educação Física

Análise do desempenho em testes de triathlon com diferentes intensidades durante a etapa natação = : Analysis of triathlon trials performance using different intensities during swimming phase

Universidade Estadual de Campinas . Faculdade de Educação Física

Avaliação do desempenho anaeróbio de atletas de rugby em cadeira de rodas = : Anaerobic performance evaluation of wheelchair rugby athletes

Universidade Estadual de Campinas . Faculdade de Educação Física

Proposta e verificação da validade de testes de limiar anaerobico para natação do nado crawl

Universidade Estadual de Campinas . Faculdade de Educação Física

Efeito da ingestão de cafeina sobre o deficit acumulado de oxigenio, sinal eletromiografico dos musculos superficiais do quadriceps e desempenho fisico de ciclistas

Universidade Estadual de Campinas . Faculdade de Educação Física

Teste "W" 20 metros : proposta computadorizada para analise da performance especifica em atletas de voleibol

Universidade Estadual de Campinas . Faculdade de Educação Física

Performance da resistencia muscular de membros inferiores em praticantes da modalidade esportiva voleibol, atraves do salto vertical

Universidade Estadual de Campinas. Faculdade de Educação Física

Crescimento fisico e performance motora : um estudo em descendentes de holandeses-Holambra

Universidade Estadual de Campinas. Faculdade de Educação Física

MH 607 FEF/UNICAMP, onde saude coletiva e performance humana se encontram : uma pesquisa-ação

Universidade Estadual de Campinas . Faculdade de Educação Física

Rastreamento automatico de trajetorias de jogadores de futebol por videogrametria : validação do metodo e analise dos resultados

Universidade Estadual de Campinas . Faculdade de Educação Física

Accuracy of three electronic apex locators in the presence of different irrigating solutions

The present study compared the accuracy of three electronic apex locators (EALs) - Elements Diagnostic®, Root ZX® and Apex DSP® - in the presence of different irrigating solutions (0.9% saline solution and 1% sodium hypochlorite). The electronic measurements were carried out by three examiners, using twenty extracted human permanent maxillary central incisors. A size 10 K file was introduced into the root canals until reaching the 0.0 mark, and was subsequently retracted to the 1.0 mark. The gold standard (GS) measurement was obtained by combining visual and radiographic methods, and was set 1 mm short of the apical foramen. Electronic length values closer to the GS (± 0.5 mm) were considered as accurate measures. Intraclass correlation coefficients (ICCs) were used to verify inter-examiner agreement. The comparison among the EALs was performed using the McNemar and Kruskal-Wallis tests (p < 0.05). The ICCs were generally high, ranging from 0.8859 to 0.9657. Similar results were observed for the percentage of electronic measurements closer to the GS obtained with the Elements Diagnostic® and the Root ZX® EALs (p > 0.05), independent of the irrigating solutions used. The measurements taken with these two EALs were more accurate than those taken with Apex DSP®, regardless of the irrigating solution used (p < 0.05). It was concluded that Elements Diagnostic® and Root ZX® apex locators are able to locate the cementum-dentine junction more precisely than Apex DSP®. The presence of irrigating solutions does not interfere with the performance of the EALs.

Thermal performance of sisal fiber-cement roofing tiles for rural constructions

Roofing provides the main protection against direct solar radiation in animal housing. Appropriate thermal properties of roofing materials tend to improve the thermal comfort in the inner ambient. Nonasbestos fiber-cement roofing components reinforced with cellulose pulp from sisal (Agave sisalana) were produced by slurry and dewatering techniques, with an optional addition of polypropylene fibers. Nonasbestos tiles were evaluated and compared with commercially available asbestos-cement sheets and ceramic tiles (frequently chosen as roofing materials for animal housing). Thermal conductivity and thermal diffusivity of tiles were determined by the parallel hot-wire method, along with the evaluation of the downside surface temperature. Cement-based components reinforced with sisal pulp presented better thermal performance at room temperature (25ºC), while those reinforced with sisal pulp added by polypropylene fibers presented better thermal performance at 60ºC. Non-asbestos cement tiles provided more efficient protection against radiation than asbestos corrugated sheets.

Produção de vitelos a partir de bezerros leiteiros mestiços e da raça Holandesa

Neste trabalho foi avaliado o desempenho produtivo de nove animais jovens Zebu × Holandês em comparação a nove animais da raça Holandesa para produção de vitelos. Todos os animais foram mantidos em condições idênticas de ambiente, manejo e alimentação, com acompanhamento individual da ingestão de matéria seca. As medidas de avaliação do desenvolvimento animal, conversão e eficiência alimentar possibilitaram comparações entre os tratamentos, a partir de delineamento inteiramente casualizado. Os bezerros Zebu × Holandês apresentaram maior ganho de perímetro torácico (23,3 cm) e ganho de peso diário (1,45 kg), além de conversão alimentar (2,77 kg de MS/kg de peso corporal), se comparados aos bezerros da raça Holandesa, com, respectivamente, 18,5 cm de perímetro torácico, 1,16 kg de ganho de peso diário e conversão alimentar de 3,48 kg de MS/kg de peso corporal. Não houve diferença na ingestão de matéria seca entre os animais avaliados. Quanto ao estudo econômico da produção de carne de vitelo, os animais mestiços apresentaram o menor custo de produção por quilo de carne produzida e, conseqüentemente, o melhor potencial de produção de vitelos a partir de animais Zebu × Holandês, como atividade complementar à produção de leite.

Changes in ruminal fermentation and mineral serum level in animals kept in high temperature environments

In order to evaluate the effect of environmental temperature on ruminal fermentation and on mineral levels of growing ruminants, it was used 12 male calves (initial average weight 82.9 ± 7.7 kg, 100 days of age), were employed in a randomized block design (by weight) experiment, with repeated weight measurement and two environmental temperatures: thermoneutral (24ºC) and heat-stressed (33ºC), during 38 days. The animals exposed to 33ºC presented lower dry matter ingestion, lower T3 (triiodothyronine) serum level, higher ammoniacal nitrogen (NH3-N) level in the rumen liquid, and higher rectal and body temperatures during all the experimental period when compared to the animals kept in thermoneutral environment (24ºC). The animals kept under heat stress environment (33ºC) presented higher calcium serum level, which was the highest on 31st day and the lowest on the 38th day of the experiment; phosphorus level was the lowest during all the experimental period; sodium level was lower on the 17th, 31st and 38th experimental days. Potassium and zinc levels were lower after 24 days; copper level was lower until the 24th day; magnesium level was higher until the 17th day, if compared to the ones from the animals kept in thermoneutral environment (24ºC). The heat-stressed animals presented higher levels of ammoniacal nitrogen in the ruminal liquid and a decrease in the phosphorus, sodium, potassium and zinc serum levels. These results show the necessity of changes on feed management to ruminants in temperatures over the thermal comfort limits so that performance loss is decreased.

Operant measurement of auditory threshold in prelingually deaf users of cochlear implants: II

Two experiments evaluated an operant procedure for establishing stimulus control using auditory and electrical stimuli as a baseline for measuring the electrical current threshold of electrodes implanted in the cochlea. Twenty-one prelingually deaf children, users of cochlear implants, learned a Go/No Go auditory discrimination task (i.e., pressing a button in the presence of the stimulus but not in its absence). When the simple discrimination baseline became stable, the electrical current was manipulated in descending and ascending series according to an adapted staircase method. Thresholds were determined for three electrodes, one in each location in the cochlea (basal, medial, and apical). Stimulus control was maintained within a certain range of decreasing electrical current but was eventually disrupted. Increasing the current recovered stimulus control, thus allowing the determination of a range of electrical currents that could be defined as the threshold. The present study demonstrated the feasibility of the operant procedure combined with a psychophysical method for threshold assessment, thus contributing to the routine fitting and maintenance of cochlear implants within the limitations of a hospital setting.