Concentric Measurements
Mostrando 1-12 de 14 artigos, teses e dissertações.
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1. Strategy for respiratory exercise pattern associated with upper limb movements in COPD patients
INTRODUCTION: Upper limb exercises are frequently used in respiratory physiotherapy, with UL elevation and controlled inspiratory timing. However, the use of expiration during upper limb elevation appears to be a strategy that could minimize the action of accessory muscles in patients with chronic obstructive pulmonary disease. In this context, little is kno
Clinics. Publicado em: 2011
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2. Relatioship between temporomanbular joint space and articular disk position / Relação entre o espaço articular da ATM e a posição do disco articular
Advanced imaging systems, as cone beam computed tomography (CBCT) and magnetic resonance imaging (MRI) have been used for the assessment of the temporomandibular joint (TMJ). Among the pathologies occurring in the TMJ, disk displacement (DD) is one of the most common observed. The aim of this study was to verify condylar position within the fossa in CBCT ima
Publicado em: 2009
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3. Complex Networks: New methodologies and knowledge acquisition modeling / Redes complexas: novas metodologias e modelagem de aquisição de conhecimento
Estudos em redes complexas têm ganhado cada vez mais atenção devido ao seu potencial de representação simples de modelos complexos em diversas áreas de conhecimento. A obtenção de modelos quantitativos que representem fenômenos observados da natureza, assim como o desenvolvimento de metodologias de caracterização de redes complexas, tornaram-se es
Publicado em: 2009
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4. Desenvolvimento de uma técnica de medida de nível em vasos de pressão utilizando sondas térmicas e redes neurais artificiais / DEVELOPMENT OF A TECHNIQUE FOR LEVEL MEASUREMENT IN PRESSURE VESSELS USING THERMAL PROBES AND ARTIFICIAL NEURAL NETWORKS
A technique for level measurement in pressure vessels was developed using thermal probes with internal cooling and Artificial Neural Networks (ANN´s). This new concept of thermal probes was experimentally tested in an Experimental Facility (BETSNI) with two test sections, ST1 and ST2. Two different thermal probes were designed and constructed: Concentric Tu
Publicado em: 2008
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5. Estudo da modulaÃÃo autonÃmica em funÃÃo da variabilidade da freqÃÃncia cardÃaca em hipertensos com e sem hipertrofia ventricular esquerda concÃntrica
This is a study of autonomic modulation as a function of heart rate variability through the time and frequency domains using 24h-Holter signals in hypertensives with and without concentric left ventricular hypertrophy (LVH), correlating the latter with cardiac arrhythmias. The data from a sample of 108 mild, moderate or severe hypertensives were analysed. Th
Publicado em: 2003
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6. Echocardiographic assessment of the different left ventricular geometric patterns in hypertensive patients
OBJECTIVE: To identiy left ventricular geometric patterns in hypertensive patients on echocardiography, and to correlate those patterns with casual blood pressure measurements and with the parameters obtained on a 24-hour ambulatory blood pressure monitoring. METHODS: We studied sixty hypertensive patients, grouped according to the Joint National Committee s
Arquivos Brasileiros de Cardiologia. Publicado em: 2001-01
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7. Comparação entre algoritmos de mínimos quadrados e de zona mínima para desvios de circularidade
The precisely assessment of out-of-roundness is an important issue in metrology. There are always errors associated with these measurements, caused by different sources. The computer aided measuring machines have an additional source of error, the algorithm itself. This subject was only recently in flux. The main objective in this work is to determine the be
Publicado em: 1996
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8. Diagnostico de um plasma criado por RF e imerso em campo magnetico
The work presented here has two major parts. Firstly, I describe the construction of an ion energy analyzer to measure the temperature and other properties of plasmas. Secondly, I study the properties of a mirror-confined plasma created by radio frequency heating. In this study, the diagnostic of the plasma is carried out using the ion energy analyzer and La
Publicado em: 1981
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9. Birth weight, weight at one year, and left ventricular mass in adult life.
OBJECTIVE--To examine how fetal and infant growth are related to left ventricular mass in adult life. DESIGN--A follow up study of men born during 1920-30 whose birth weights and weights at 1 year were recorded. SETTING--Hertfordshire, England. SUBJECTS--290 men born and still living in East Hertfordshire, England. MAIN OUTCOME MEASURE--Left ventricular mass
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10. Relative degree of stimulation-evoked glycogen degradation in muscle fibres of different type in rat gastrocnemius.
1. The relative degree of glycogen degradation, caused in different fibre types by supramaximal electrical activation of the muscle nerve, was investigated in m. gastrocnemius medialis of young adult rats under general pentobarbitone anaesthesia. Four different protocols of intermittent maximal tetanic activation were used, each lasting 6 s (33% duty cycle;
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11. Cardiac performance in hypertension re-evaluated through a combined haemodynamic ultrasonic method.
From echocardiographic measurements, 39 patients with established, uncomplicated primary hypertension (diastolic pressure > 100 mmHg) were classified as follows: normal-sized heart (group 1, 10 cases); concentric left ventricular hypertrophy (group 2, 18 cases); left ventricular hypertrophy and cavity enlargement (group 3, 11 cases). Eighteen age-matched hea
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12. Voltage clamp of rat and human skeletal muscle: measurements with an improved loose-patch technique.
Intact fibres of human intercostal and rat omohyoid muscles were studied at 23 degree C with a loose-patch voltage-clamp technique that employed two concentric micropipettes to electrically isolate small-diameter (10-15 microns) patches of sarcolemma. This method allows investigation of membrane excitability under highly physiological conditions. Step depola