نتایج جستجو برای: ovarian ageing
تعداد نتایج: 107173 فیلتر نتایج به سال:
Ageing describes the progressive functional decline of an organism over time, leading to an increase in susceptibility to age-related diseases and eventually to death, and it is a phenomenon observed across a wide range of organisms. Despite a vast repertoire of ageing studies performed over the past century, the exact causes of ageing remain unknown. For over 50 years it has been speculated th...
Human ageing is a global problem that will have a large socio-economic impact. A better understanding of ageing can direct public policies that minimize its negative effects in the future. Over many years, several longitudinal studies of human ageing have been conducted aiming to comprehend the phenomenon, and various factors influencing human ageing are under analysis. In this review, we categ...
In this article, we develop a tentative philosophy to orchestrate and support possibilities for artful ageing. This effort argues that older adults need broader range of opportunities explore the manifold ephemeral, non-rational, in-between elements an ageing life. The is rooted in notion space (literally metaphorically) process their existence engaging such processes can entail emancipatory ef...
The overall aim of this thesis was to investigate genetic and ageing effects on beef quality. To study the genetic effects, association analyses were carried out between single nucleotide polymorphisms (SNPs) at DGAT1, LEP, SCD1, CAPN1 and CAST genes with colour, marbling, water holding capacity (WHC) and tenderness in meat from young bulls of the beef cattle population in Sweden. In total 243 ...
study of distribution of elderly population in chahar mahal and bakhtiari province from 1966 to 2011
background and aims: nowadays, the age structure of iran is transitioning from youth to elderly. although, the elderly population are still accounted for a small portion of the population; however, the population growth rate of this age group is growing compared to the growth of the total population. therefore, understanding of the changes of this population is necessary. this study aimed to id...
in this study, pp films were modified with an organic pro-degradant in different concentrations (1, 2 and 3wt.%), exposed in the first step of degradation to natural ageing for 100 days followed by biodegradation insimulated soil in the respirometric test for 100 days. at the end of the combined degradation process the pp sampleswere characterized according to their morphological and physical p...
it is essential to make urban spaces usable for a wide range of citizens, including aged people. this study was carried out in sari, the center of mazandaran province, northern iran in 2013 to prioritize five urban parks of the city using fuzzy-ahp method in terms of three pre-defined criteria, including safety, security, and environmental health. firstly, the criteria and alternatives were def...
According to the antagonistic pleiotropy theory of ageing, natural selection has favoured genes conferring short-term benefits to the organism at the cost of deterioration in later life. The 'disposable soma' theory expresses this as a life-history strategy in which somatic maintenance is below the level required to prevent ageing, thus enabling higher immediate fertility. It has been argued th...
this study was conducted in order to evaluate the effects of long term ageing on toughness andresilient modulus of asphalt concrete mixtures containing electric arc and basic oxygen furnacesteel slags. after initial evaluation of the properties of steel slags using x-ray diffraction andscanning electric microscope, eleven sets of laboratory mixtures were prepared. each set wastreated replacing ...
The molecular and cellular mechanisms that regulate ageing are currently under scrutiny because ageing is linked to many human diseases. The nutrient sensing TOR pathway is emerging as a key regulator of ageing. TOR signaling is complex affecting several crucial cellular functions and two such functions, which show clear effects on ageing, are protein synthesis and autophagy. In this article we...
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