5,697 research outputs found
High Resolution Viscosity Measurement by Thermal Noise Detection
An interferometric method is implemented in order to accurately assess the
thermal fluctuations of a micro-cantilever sensor in liquid environments. The
power spectrum density (PSD) of thermal fluctuations together with Sader's
model of the cantilever allow for the indirect measurement of the liquid
viscosity with good accuracy. The good quality of the deflection signal and the
characteristic low noise of the instrument allow for the detection and
corrections of drawbacks due to both the cantilever shape irregularities and
the uncertainties on the position of the laser spot at the fluctuating end of
the cantilever. Variation of viscosity below 0.03 mPas was detected with
the alternative to achieve measurements with a volume as low as 50 L.Comment: Sensors, MDPI, 201
A prática de exercĂcios regulares desenvolvida com idosos atendidos no programa "Cabelos de Prata", na cidade de Boa Vista/Roraima /Brasil
O presente trabalho trouxe um referencial teĂłrico sobre os exercĂcios regulares
desenvolvidos com idosos, realizando uma análise dessa prática no Programa
Cabelo de Prata, na cidade de Boa Vista, Roraima. A importância deste estudo
reside em compreender melhor a necessidade da participação dos idosos em
programas sociais e de atividade FĂsica que beneficiem sua qualidade de vida. O
enquadramento teĂłrico objetivou compreender o histĂłrico dos exercĂcios
regulares como fontes de saĂşde para o corpo; identificar fatores que influenciam
na prática de atividades fĂsicas; relacionar as atividades desenvolvidas e o
estado de saĂşde dos idosos que as praticam. No desenvolvimento do estudo
empĂrico, verificou-se que sĂŁo os homens que mais participam dos exercĂcios
fĂsicos realizados no Programa Cabelo de Prata. As atividades fĂsicas preferidas
pelos idosos sĂŁo os exercĂcios fĂsicos gerais e dançar; The practice of regular exercises developed with seniors in the “Silver hairs”
program, at Boa Vista/Roraima City, Brasil
ABSTRACT:
This study provides a theoretical framework of the regular exercises developed
with the elderly, conducting an analysis of this practice in the Silver Hair
Programme in the city of Boa Vista, Roraima. The importance of this study is to
bring greater awareness to the readers about the need for the participation of the
elderly in social programs that benefit their quality of life. Aiming to understand
the history of regular exercise as sources for body health, to identify factors that
influence physical activity; relate the activities and health status of the elderly who
practice them. In developing the empirical study we found that men participated
more in physical exercises developed in Silver Hairs Program. Physical activities
preferred by the elderly are regular exercise and dance
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