emergence of crops is affected by environmental factors such as soil water, salinity and sowing and seed quality. the present study was conducted to evaluate the effect of seed aging (seed quality) on emergence of wheat under optimum (control) and stressful conditions including salinity (2 levels), drought (2 levels) and deep sowing depth (physical stress). seeds (cv. ‘zagros’) were kept at a h...

Physical aging and plastic flow are known to cause changes in the properties of glassy polycarbonate (PC). Although the individual effects of physical aging and plastic flow have been studied, the combined mechanical and thermal effects have yet to be evaluated for PC at large plastic strains. This work is the first characterization of the combined effects in PC of large plastic flow followed b...

The prevalence of Chronic Obstructive Pulmonary Disease is growing, and people are living with this disease well into older age. Little is known about how people with Chronic Obstructive Pulmonary Disease adapt to aging, particularly the physical changes of aging. According to the Identity Process Theory, people are inclined to attribute age-related changes in physical functioning to a transito...

1. Clinical Overview Primary care physicians are often asked to recommend behavioral changes that might improve an older person’s chance for successful aging. The primary care physician can use insights from clinical, basic science, and pathological research to recommend intellectual, physical, and psychosocial stimulation as part of their cognitive wellness program for middle aged and older pa...

Recovery from exercise is integral to the physical training process. There is a perception among older athletes that aging negatively affects the recovery process. Plausible arguments for an impaired recovery with aging are a greater susceptibility of older muscle to exercise-induced skeletal-muscle damage and a slower repair and adaptation response. Differences in the physical activity level o...