BACKGROUND The positive health and wellbeing effects of social support have been consistently demonstrated in the literature since the late 1970s. However, a better understanding of the effects of age and sex is required. METHOD We examined the factor structure and reliability of Kessler's Perceived Social Support (KPSS) measure in a community-based sample that comprised younger and older adu...

IMPORTANCE Determination of the mechanisms by which visual loss increases mortality risk is important for developing interventional strategies. OBJECTIVE To evaluate the direct and indirect effects of loss of visual acuity (VA) on mortality risk through functional status changes among aging adults. DESIGN, SETTING, AND PARTICIPANTS Prospective longitudinal study of a population-based sample...

this paper considers the fuzzy inventory model for deteriorating items for power demand under fully backlogged conditions. we define various factors which are affecting the inventory cost by using the shortage costs. an intention of this paper is to study the inventory modelling through fuzzy environment. inventory parameters, such as holding cost, shortage cost, purchasing cost and deteriorati...

Two studies examined the associations between life regrets and indicators of quality of life across the adult life span. Given that opportunities to undo regrets decline with age, regret intensity was expected to be inversely associated with subjective well-being and health among older adults. In addition, the research explored protective factors that have the potential to reduce older adults' ...

Abstract In this paper the relationship between the use of abortion and contraception among married women in a society experiencing uronid decline in fertility is analysed using data from the Korean National Fertility Survey of 1974. The level and pattern of abortion before and after modern contraceptives became widely available are described, and the implications of the changing patterns of ...

Chloride ingress and carbonation cause corrosion of reinforced concrete (RC) structures affecting its operational life. Experimental evidence indicates that these deterioration processes are highly influenced by CO2 emissions and climatic conditions in the surrounding environment –i.e. temperature, humidity, etc. Since studies on global warming announce changes in climate, the impact of changin...