OBJECTIVE The long-term effects of traumatic brain injury (TBI) can resemble observed in normal ageing, suggesting that TBI may accelerate the ageing process. We investigate this using a neuroimaging model that predicts brain age in healthy individuals and then apply it to TBI patients. We define individuals' differences in chronological and predicted structural "brain age," and test whether TB...

The ageing process is influenced by many internal and external factors. The toxic substances in the environment can cause genomic damages to cells, which increase the risk of early ageing. Furthermore, the cytochrome P450 1A2 (CYP1A2) gene polymorphism is a susceptibility factor and may enhance the risk of DNA damage in cells. The current study was carried out to show whether occupational expos...

The comparison of non-contemporary speech samples is common in forensic speaker recognition cases. It has yet to be established however, to what extent the time interval between non-contemporary samples can increase before a problem is created for forensic automatic speaker recognition. This paper presents results of a human listener test designed to evaluate the detectability of vocal ageing o...

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...

in the present work, the influence of aging temperature on mechanical properties and sound velocity of maraging steel m350 was investigated. for this purpose, first, samples were solution annealed at 825◦c for 2 hours and then age hardened at 510◦c-600◦c for 3 hours. hardness, tensile and impact tests were used for determining mechanical properties and longitudinal ultrasonic velocity was used ...

A 15-month ageing test of an ATLAS module ‘‘0’’ RPC has been performed at the GIF X5 CERN irradiation facility. The aged RPC performances largely fulfilled the ATLAS requirements. However, the test showed a significant reduction of the RPC maximum rate capability, from almost 2 kHz cm 2 to a few hundred Hz cm ; due to the total charge integrated during the test. The reasons for this ageing phen...

The strength degradation of the composite material due to hygrothermal ageing is investigated with statistical significance. study aims report effect on moments material. Quasi-static tensile, compressive and flexure tests were performed a significant number samples by following ASTM standards. moisture absorption behaviour test specimens was modelled using Fick diffusion model. A observed agei...

background: increased life expectancy and the growing phenomenon of aging can lead to increased burden of chronic diseases (cds) which adversely affects the overall health of elderly, their sexuality in particular. sexual life of aged population is overlooked in many of the societies. in the present narrative review, we aim to assess the impact of cds on sexual function of elderly people. mater...

introduction: motor skills play an important role during life span, and older adults need to learn or relearn these skills. the purpose of this study was to investigate how aging affects induction of improved movement performance by motor training. methods: serial reaction time test (srtt) was used to assess movement performance during 8 blocks of motor training. participants were tested in two...

The phenomenon of population ageing and its influence on the economic growth of countries has long been the focus of major concern for both governments and the scientific community. Considering the scientific contributions that have been published on the matter in recent years, it seems timely to take a comprehensive and objective account of this stream of the literature. Using bibliometric tec...