Índices e dimensões ecocardiográficas de equinos da raça Mangalarga Marchador

Heart rate variability in Mangalarga Marchador horses after physical exercise

The aim of this study was to evaluate the influence of physical exercise (marcha gait) on heart rate variability indices in Mangalarga Marchador horses. Twenty-five animals, fourteen females and eleven males, aged 6.4 ± 2.7 years and with a mean weight of 428.3 ± 24.7 kg, were used. Electrocardiograms were recorded at two different time points: rest and immediately after exercise (40 min of aer...

Genetic diversity and population structure in Brazilian Mangalarga Marchador horses.

One hundred and fifteen unrelated Mangalarga Marchador horses were sampled from three geographically distinct regions of Minas Gerais State, Brazil (South, Southeast, and Northeast) and tested for 10 microsatellite loci. Genetic diversity and population structure parameters were estimated with ARLEQUIN 3.0, CERVUS 2.0, POPGENE 1.31, GENEPOP on the web, STRUCTURE 2.0, and SPAGEDI 1.2 software pa...

Dimensões teórico-metodológicas do cálculo diferencial e integral: perspectivas histórica e de ensino e aprendizagem

Resumo O artigo descreve um Cenário de Investigação criado por algumas dimensões teóricometodológicas, as quais apresentam, em duas perspectivas inter-relacionadas, as influências, limites e potencialidades do uso das Tecnologias de Informação e Comunicação no Cálculo Diferencial e Integral: em uma perspectiva histórica, e em uma perspectiva de ensino e de aprendizagem. O objetivo deste trabalh...

Utilização de Redes Neurais na Manutenção Pró-Ativa de Índices

This paper presents a mechanism, denoted Neural-PIM, for proactive index management based on the use of artificial neural networks. Neural-PIM is DBMS-independent, runs continuously and with no DBA intervention. Additionally, Neural-PIM is based on a four steps approach: (1) monitoring the workload submitted to DBMS, (2) identifying a set of time consuming queries and discovery the more appropr...

Representación de conceptos difusos mediante índices semanticos