"The evolution of the Brazilian population size, its growth rate and relative age structure between 1940 and 1991 as well as its expected trajectory until 2020 are presented in this paper. After briefly considering the quasi-stability of the Brazilian population in the past, the role of fast fertility decline is emphasised in the current changing age structure."

Aging is traditionally associated with cognitive decline, attested by slower reaction times and poorer performance in various cognitive tasks, but also by an increase in intraindividual variability (IIV) in cognitive performance. Results concerning how lifestyle activities protect from cognitive decline are mixed in the literature and all focused on how it affects mean performance. However, IIV...

This study aims to understand trends in global fertility from 1950-2010 though the analysis of age-specific fertility rates. This approach incorporates both the overall level, as when the total fertility rate is modeled, and different patterns of age-specific fertility to examine the relationship between changes in age-specific fertility and fertility decline. Singular value decomposition is us...

In this study, effect of adding in SiO2 nanoparticle in base fluid (water) in car radiator is investigated experimentally. Radiators are compact heat exchangers that optimized and evaluated by considering different working conditions. Car\'s cooling system, plays an important role in vehicle\'s performance, consists of two main parts, known as radiator and fan. Radiators are compact heat exchan...

Background: The COVID-19 pandemic was expected to affect India severely; cases rose exponentially from May-June 2020, but around mid-September reached their peak and started declining. It showed a sign of the wave’s completion by end January 2021. This decline not predicted any models authors have come across explanation. Winter seasonality influenza similar viruses is well known observed fact ...

we have used recombinant human erythropoietin (r-huepo) in children with chronic renal failure. there was significant improvement in anemia and wellbeing, along with regression of left ventricular mass and no change in the rate of decline of renal function. it is safe and effective in the pre-dialysis as well as the hemodialysis period. considering the benefits of r-huepo, transplantation in ch...

the exercise of jurisdiction as a feature of sovereignty application of states has passed from traditional rule of territoriality and has included goods outside of state territory. the expansion of jurisdictional rule that has been justified on the basis of state interests and legitimate benefits of private persons imposed enormous costs on litigant parties and forums. the provision of public b...

Predictors of decline in health in older populations have been investigated in multiple studies before. Most longitudinal studies of aging, however, assume that dropout at follow-up is ignorable (missing at random) given a set of observed characteristics at baseline. The objective of this study was to address non-ignorable dropout in investigating predictors of declining selfreported health (SR...

Based on the porous flow theory, an extension of the pseudo-functions approach for the solution of non-linear partial differential equations considering adsorption-desorption effects was used to investigate the transient flow behavior of fractured wells in shale gas reservoirs. The pseudo-time factor was employed to effectively linearize the partial differential equations of the unsteady flow r...