Banca de DEFESA: RONALDO ALVES DO AMARAL

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
DISCENTE: RONALDO ALVES DO AMARAL
DATA: 09/12/2012
HORA: 08:30
LOCAL: Sala de Reuniões CONSEC, 2º andar do CCS - UFRN
TÍTULO:

THE PHYSICAL ORIGIN OF SIGMOIDAL RESPIRATORY PRESSURE–VOLUME CURVES: ALVEOLAR RECRUITMENT AND NONLINEAR ELASTICITY

PALAVRAS-CHAVES:

Lung, Respiratory curves, Sigmoidal e Alveolar recruitment

PÁGINAS: 11
GRANDE ÁREA: Ciências da Saúde
ÁREA: Medicina
RESUMO:

An important unsolved problem in medical science concerns the physical origin of the sigmoidal shape of pressure–volume curves of healthy (and some unhealthy) lungs. Conventional wisdom holds that linear response, i.e., Hooke’s law, together with alveolar overdistention play a dominant role in respiration, but such assumptions cannot explain the crucial empirical sigmoidal shape of the curves. Here, we propose a theory of alveolar recruitment together with nonlinear elasticity of the alveoli. The proposed model surprisingly and correctly predicts the observed sigmoidal pressure–volume curves. We discuss the importance of this result and its implications for medical practice.

MEMBROS DA BANCA:
Externo à Instituição - EDEMERSON SOLANO BATISTA DE MORAIS - IFRN
Externo ao Programa - 6345638 - EUDENILSON LINS DE ALBUQUERQUE
Externo à Instituição - JOSE ALZAMIR PEREIRA DA COSTA - UERN
Externo ao Programa - 345099 - LIACIR DOS SANTOS LUCENA
Externo ao Programa - 346140 - LUCIANO RODRIGUES DA SILVA