In abiotic degradation the action of light radiation is one of the most important parameters, because polymers undergo degradation due to the action of light (natural or artificial). The aim of this study was to investigate the degradation rate for samples of polypropylene (PP) modified with an organic pro-degradant submitted to ageing in a natural environment and to accelerated ageing test. Th...

introduction: elder abuse may increase the vulnerability of ageing people to disease and decrease their general health status, so addressing the issue is essential for promoting elderly quality of life. the study aimed to examine the relation between abuse experience and general health among elderly people in yazd city- iran. methods: the cross-sectional study carried out on 250 community-dwell...

Abstract Background Women are disadvantaged by ageing: older women more likely than men to suffer from ill-health, have less access health care and discrimination within the system. Globally, there is a dearth of research on gender ageing with substantial knowledge gaps in low middle-income country contexts. Part wider investigation Fiji, our objective was identify describe gendered differences...

We propose a data-constrained generalized maximum entropy estimator for discrete sequential move games of perfect information. Unlike most other work on the estimation of complete information games, the method we proposed is data constrained and requires no simulation or assumptions about the distribution of random preference shocks. We formulate the GME estimation as a (convex) mixed-integer n...

In the context of HIV as a chronic disease, care being delivered with more constrained budgets and being more complex as many patients are ageing, the need for disease self-management is increasingly recognized. Like in other chronic diseases, HIV care and treatment guidelines increasingly promote the enhancement of health management by patients, within a framework of closer collaboration with ...

in the linear system ax = b the points x are sometimes constrained to lie in a given subspace s of column space of a. drazin inverse for any singular or nonsingular matrix, exist and is unique. in this paper, the singular consistent or inconsistent constrained linear systems are introduced and the effect of drazin inverse in solving such systems is investigated. constrained linear system arise ...

the glass transition temperature (tg) and the melting temperature (tm) of gelatin at water contents between 7 and 14% were measured using differential scanning calorimetry.  the plasticisation of the polymer by water led to a decrease in tg and tm. the tg of partially crystalline gelatin was higher than that of the amorphous one obtained by quenching from the melt. the enthalpy relaxation occur...

increasing of the aging population in most of the developed countries should be more attention to the health issues of this aged group. in iran, the ageing program has been launched and some institutes or organizations have been in charge of this program. the coordination of health policies and activities in elderly care programs and ageing networks could be helped to improve of elderly life sp...