Determinação da carga viral em transplantados renais como parâmetro preditivo para o desenvolvimento da doença infecciosa por Citomegalovírus

Pós-graduação em Microbiologia - IBILCE

Relação entre presença de anticorpos anti-leishmania spp. e carga parasitária em sangue de cães de área endêmica para leishmaniose visceral

Pós-graduação em Ciência Animal - FMVA

Técnicas de parametrização para o fluxo de carga continuado desenvolvidas a partir da análise das trajetórias de soluções do fluxo de carga

Pós-graduação em Engenharia Elétrica - FEIS

Capacidade de suporte de carga de Latossolo Vermelho cultivado com cana-de-açúcar e efeitos da mecanização no solo

The objective of this work was to determine the load support capacity (LSC) of an Oxisol and, through compressibility models, relate it to wheel-soil interactions under management systems with one and three sugarcane crop cycles, with mechanized harvest. LSC evaluations were carried out on undisturbed soil samples, collected at planting row and bed, in four layers: 0.00-0.10, 0.10-0.20, 0.20-0.30, and 0.300.40 m. The contact area between wheels and soil was determined in order to estimate the contact pressure by agricultural machinery on the soil. Pre-consolidation pressures were used to determine LSC. The system with three cycles showed higher LSC than the system with only one cycle. The load support capacity of the soil evaluated in the range of friability is greater than the contact pressures applied to the soil by the wheels of the studied agricultural machines.

Análise da rotação ombro-quadril e co-contração muscular do tronco durante um movimento de rotação axial com manuseio de carga

Pós-graduação em Engenharia Mecânica - FEG

Carga de trabalho de equinos da raça Quarto de Milha monitorados com Sistema de Posicionamento Global (GPS) e monitor cardíaco durante exercício de Três Tambores

Pós-graduação em Biotecnologia Animal - FMVZ

Carga e trabalho de enfermagem em unidade de terapia intensiva especializada em queimados

Pós-graduação em Enfermagem (mestrado profissional) - FMB

Variabilidade da frequência cardíaca e carga máxima atingida no teste de esforço físico dinâmico em homens idosos

INTRODUÇÃO: Um dos benefícios promovidos pelo exercício físico parece ser a melhora da modulação do sistema nervoso autônomo sobre o coração. No entanto, o papel da atividade física como um fator determinante da variabilidade da frequência cardíaca (VFC) não está bem estabelecido. Desta forma, o objetivo do estudo foi verificar se há correlação entre a frequência cardíaca de repouso e a carga máxima atingida no teste de esforço físico com os índices de VFC em homens idosos. MÉTODOS: Foram estudados 18 homens idosos com idades entre 60 e 70 anos. Foram feitas as seguintes avaliações: a) teste de esforço máximo em cicloergômetro utilizando-se o protocolo de Balke para avaliação da capacidade aeróbia; b) registro da frequência cardíaca (FC) e dos intervalos R-R durante 15 minutos na condição de repouso em decúbito dorsal. Após a coleta, os dados foram analisados no domínio do tempo, calculando-se o índice RMSSD, e no domínio da frequência, calculando-se os índices de baixa frequência (BF), alta frequência (AF) e razão BF/AF. Para verificar se existe associação entre a carga máxima atingida no teste de esforço e os índices de VFC foi aplicado o teste de correlação de Pearson (p < 0,05). RESULTADOS: Características demográficas, antropométricas, fisiológicas e carga máxima atingida no teste ergométrico: idade = 63 ± 3,0 anos; IMC = 24 ± 2kg/m²; FC = 63 ± 9bpm; PAS = 123 ± 19mmHg; PAD = 83 ± 8mmHg; carga máxima = 152 ± 29 watts. Não houve correlação entre os índices de VFC com os valores de FC de repouso e carga máxima atingida no teste ergométrico (p > 0,05). CONCLUSÃO: Os índices de variabilidade da frequência cardíaca temporal e espectrais estudados não são indicadores do nível de capacidade aeróbia de homens idosos avaliados em cicloergômetro.

Avaliação Histológica e histomorfométrica do reparo ósseo em tíbias osteotomizadas de ratos (rattus novergicus albinus), submetidos a tratamento com ultrassom, frente à presença e ausência de carga

The response of bone metabolism is directly related to hormonal factors and mechanical stimuli that the bone is exposed. The ultrasonic energy on bone healing have been shown to be crucial for the stimulation and improvement in quality of newly formed tissue. The aim of this study was to analyze the action of low intensity ultrasound on bone healing of tibial osteotomy in rats subjected to tail suspension, through histological analysis and histomorphometry. Eighteen Rattus norvegicus albinos, Wistar, adults were divided into three groups, arranged as follows: G1 (n = 6), who remained free for a period of 15 days, G2 (n = 5), suspended by the tail for a period of 15 days and G3 (n = 7), suspended by the tail for a period of 36 days. In all three groups, both tibias were subjected to mono-cortical bone injury 4X2 mm in the medial region of the diaphysis, and the left limb was used as control and the right limb undergoing treatment with ultrasound (U.S.). The right tibia was treated with pulsed ultrasound at a frequency of 1.5 MHz, duty cycle 1:4, 30mW/cm2, for 12 sessions of 20 minutes each. Samples of tibia were subjected to histological analysis, blindly, with light microscopy and histomorphometric analysis by specific software Image-Pro 6.1. The average percentage of new bone formation were subjected to analysis of variance in subdivided parcels and multiple comparison test "Student-Newman-Keuls (SNK), with a significance level of 5%. The average values and standard deviations of the percentage of newly formed bone for the groups showed the least amount of bone repair G1t (13.62% ± 4.88%) - G1c (8.68% ± 4.16%) compared G2t groups (27.17% ± 11.36%) - G2c (10.10% ± 7.90%) and G3t (23.19% ± 5.61%) - G3c (15.74% ± 7 08%). However, the mean values and standard deviations of the percentage of newly formed bone repair in the tibia treated G2t and G3t were significantly higher when compared to the repair of tibia in the control group (G2c and G3c). Consequently, we conclude that ultrasound has helped to accelerate bone repair in both the presence and absence of cargo.

Laser terapêutico no reparo ósseo de ratos submetidos à ausência de carga

Low-intensity laser has been used as a physical agent in various fields of medical sciences such as bone and tissue repair. Meanwhile little is known about its effects in adverse conditions such as abolition of load and osteopenic. With the assumption that the laser Ga-Al-As accelerates the process of bone consolidation, goal of this study was to evaluate bone mineral density (BMD) in incomplete transverse osteotomies of tibia in adult rats, treated with low power laser therapy in three different groups: G1 (n = 10), reference 15 days; G2 (n=10), suspended by the tail and, accordingly, treated with laser for 12 days; G3 (n = 10), suspended by the tail by 36 days and that after 21 days, there was laser treatment for 12 days. The right tibia treated with laser and left served as control. The laser was used to Ga-Al-As, DMC - Flash Lase® III, with wavelength 830nm, 100 mW, 4J, 140 J / cm ², 40s of application in 12 sessions. It was used densitometer-Lunar DPX®, with computer program for "small animals", and the analysis of BMD was made in the bone throughout the region and the osteotomy. The results showed no efficacy of laser therapy in the process of bone repair, both in animals of group 1, as in group 2 and 3. It follows that either the low-power laser was not an effective performance or the effects of laser therapy is not only manifested at the site of irradiation as well as the systemic level.

Adição de plasma bovino em salmouras para injeção de coxão duro bovino (m. Biceps femoris) e seus efeitos no pH e na carga microbiana de bifes cozidos embalados à vácuo e mantidos sob refrigeração

The physical (pH) and microbiological (psychotrofi c microorganisms and lactic bacteria) characteristics of beef outside round (m. Biceps femoris) injected (15%) with brines free of polyphosphates containing and sodium lactate or sodium lactate and sodium diacetate and liquid bovine plasma (PLL and PLO) or dehydrated bovine plasma (PDL, PDO) were evaluated along with beef cuts injected with brines free from plasma, but containing polyphosphates and bacteriostatic agents (CL and CO) and non injected beef cuts (IN), comprising seven treatments of cooked and vacuum packaged beef steaks stored under refrigeration (6ºC) during 43 days. No differences in pH were detected among raw or cooked injected treatments, although IN showed lower pH value in raw beef cuts. The addition of liquid or dehydrated bovine plasma did not affect the microbial load after whole muscles pasteurization, but increased the bacterial counts in cooked beef steaks during refrigerated storage, comparing to treatments with no plasma addition (CL and CO). The storage temperature (6ºC), usually found during commercialization of meat increased the microorganisms growth rate affecting the microbiological quality, especially when plasma was added to the brine.

A influência da carga imposta pela mochila escolar em alunos do ensino fundamental e médio: uma contribuição para estudos ergonômicos

This cross-sectional study aimed to evaluate the load carried by students in primary and secondary schools, state Vespasian /MG, and quantify the percentage established between backpack weight and body mass of these young people carry every day. The study included 916 students of both genders. Ages ranged from 10-19 years. 541 students (59.06%) carried the load backpack ranging from 10.02 to 33.43% of his body mass. Students with younger age, female students and those who opted for the backpack model designed dorsal attachment tended to carry a load higher than 10% of his body weight. 224 (24.45%) students complain of back pain and shoulder. It was concluded that the cargo is inadequate from the point of view of biomechanics and ergonomics, especially for younger individuals and females, since they are in growth phase, and this exposes them to an overhead increased risk of spinal injuries, with consequent repercussions in adulthood.