The advent of respiratory failure is an important indicator of prognosis in the late natural course of chronic obstructive pulmonary disease. The course of 30 patients with c h i c obstructive pulmonary disease following the first episode of respiratory failure has been documented. The data presented are consonant with a severely restricted life expectancy following the first episode of respira...

To study the deformation and failure behavior of open-graded friction course (OGFC) before cracking at low temperatures, a four-point bending test trabecula was conducted, process monitored by digital speckle method (DSM). The distribution law strain field trabecular specimens analyzed. horizontal gradually changed from uniform to concentration area with loading. crack initiation time, strain, ...

Angioedema secondary to C1 inhibitor deficiency has been rarely reported to be associated with systemic lupus erythematosus. A genetic defect of C1 inhibitor produces hereditary angioedema, which is usually presented with cutaneous painless edema, but edema of the genital area, gastrointestinal and laryngeal tracts have also been reported.In lupus patients, angioedema may be the result of an ac...

motivation is perhaps the most frequently used term for explaining the success and failure of educational tasks. numerous studies have shown that motivation is a key to learning (gardner and lambert, 1972). however, such experiments give us an understanding of what motivation is and what the components of motivation are. but they usually fail to reveal that someone is motivated or how we can cr...