To assess factors associated with bone mineral density (BMD) in postmenopausal women in a longitudinal study, and to examine the relative contribution of lean mass, fat mass, dietary patterns, and years since menopause to BMD.Two hundred and eighty-two postmenopausal women were randomly selected from Hongqi Community Health Center, in Harbin City,
In welding sweater this work a methodology of fault analysis in mechanical systems was developed using Kalman Filter state observes, in which, the input to the observers are identified by Fourier, Legendre and Chebyshev orthogonal functions.The proportional-integral observer is presented to the unknown input identification, this observer can be abl
Some educational programs in areas of engineering and technology often have difficulties providing their students with the necessary instruments to carry out experimental work.This may be due to financial difficulties or simply a lack of opportunities to purchase enough devices.In these cases, computer-aided design could be adopted to model a large
BACKGROUND:The family flaviviridae and alphaviridae contain a diverse group of pathogens that cause significant morbidity and mortality worldwide.Diagnosis of the virus responsible for disease is essential to ensure patients receive appropriate clinical management.Very few real-time RT-PCR based assays are able to detect the presence of all members