The microinflammatory model of skin aging is described. This model accounts for the loss of elasticity, resiliene and flexibility of the dermis, as well as for the appearance of wrinkles and for the thinning of the epidermis which are associated with aging. The lack of appropriate apparatuses for the correct measurements of skin hydration does not allow one to test this model for its predictive...

Due to the significant temperature difference and high solar radiation in high-altitude areas, asphalt pavement has been freeze-thaw cycles service conditions for a long time, resulting shorter life. To extend life of this study uses basalt fiber toughen mixture, characteristics under coupled effects aging were evaluated. First, cycles, content selected as independent variables conduct Box–Behn...

The accurate estimation of the thermal performance of insulation products used in buildings over their expected lifetime has been a recognized challenge for over 25 years. This is because the lifetime of such products is long, thermal aging is caused by the diffusion of a multitude of gases, and the insulation product is not homogeneous. The task of developing a standard test method for predict...

introduction: discoloration of dental composite resins is one of the most common reasons for replacement of these restorations. this in vitro study was carried out to evaluate the effect of aging on discoloration of silorane-based filtek p90 and micro-hybrid z250 composite resins. materials and methods:   this experimental study was carried out on 10 disk-shaped filtek p90 and z250 samples, mea...

When subjected to extended exposure to intermediate service temperatures, Cr–Mo steels, Ni–Cr steels, and 5% Ni steels can become embrittled, with an associated decrease in fracture toughness and a shift in the ductile-to-brittle transition temperature to higher temperatures. Two methods for the investigation of temper embrittlement phenomena are isothermal aging or the use of a step cooling ag...

Anti-Aging can prevent or slow down the effects of skin aging. This study aims to formulate extracts beetroot (Beta vulgaris. L) and Aloe Vera (Aloe Vera) in gel preparations test their anti-aging effectiveness. research was conducted at Laboratory Pharmaceutical Chemistry, University Sari Mutiara Indonesia. The tools used are analyzer moisture checker. B. vulgaris Samples from Brastagi, Karo R...

BACKGROUND Active aging is central to enhancing the quality of life for older adults, but its conceptualization is not often made explicit for Asian elderly people. Little is known about active aging in older Thai adults, and there has been no development of scales to measure the expression of active aging attributes. PURPOSE The aim of this study was to develop a culturally relevant composit...