نتایج جستجو برای: aging time
تعداد نتایج: 1980703 فیلتر نتایج به سال:
aging coefficient (ac) or aged-child ratio or age composition; takes into account the numbers and areas at both ends of the age distribution simultaneously. ac is the total number of individuals aged 65 years and more, divided by the total number of individuals aged 14 years, multiplied by 100. herein, age composition in iranian popu1ations, according to different provinces, place of residence ...
Introduction: Photo aging is significantly different from chronological aging in both clinical and histological appearances. It has been suggested that oxidative stress generated by ultraviolet radiation (UVR), leads to photo aging over a long time period. This study was conducted to determine the relationship between the indicators of plasma oxidative stress and photo damaged skin in patient...
Multicellular life evolved from simple unicellular organisms that could replicate indefinitely, being essentially ageless. At this point, split into two fundamentally different cell types: the immortal germline representing an unbroken lineage of division with no intrinsic endpoint and mortal soma, which ages dies. In review, we describe as clock-free soma clock-bound discuss aging respect to t...
In the present investigation, spherical nanoparticles of nickel ferrite with uniform structure were successfully produced by hydrothermal method in the presence of polyethylene glycol (PEG) as a polymeric surfactant at 180°C for 12 hour aging time and the effects of the synthesis time, temperature and surfactant were investigated. According to the X-ray analysis, conversion of nickel oxide ...
We explore the aging transition in a network of globally coupled Stuart-Landau oscillators under discrete time-dependent coupling. In this coupling, connections among are turned ON and OFF systematic manner, having either symmetric or an asymmetric time interval. discover that depending upon period duty cycle ON-OFF intervals, region shrinks drastically parameter space, therefore promoting rest...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید