background : due to rapid advances in modern technologies such as telecommunication technology, the world has witnessed an exponential growth in the use of digital handheld devices (e.g. smartphones and tablets). this drastic growth has resulted in increased global concerns about the safety of these devices. smartphones, tablets, laptops, and other digital screens emit high levels of short-wave...

There is divergence of opinion regarding the consequences of population growth for economic development. Some view rapid population growth as a real problem while others assert that it is not a matter of grave concern. Crossnational evidence on the relationship between population growth and economic growth is inconsistent because the underlying parameters and assumptions vary across countries. ...

We consider the Wright-Fisher model with exponential population growth and investigate effects of population growth on the shape of genealogy and the distributions of several test statistics of neutrality. In the limiting case as the population grows rapidly, the rapid-growth-limit genealogy is characterized. We obtained approximate expressions for expectations and variances of test statistics ...

Materials from this book may be reproduced provided Population Action International and the authors are acknowledged as the source. Summary For more than a decade, since the 1986 release of a seminal report by the U.S. National Research Council, discussion of the impact of population growth on economic change in developing countries has languished within both the demographic and economic fields...

South-West Asia (or the Middle-East), shown in Figure 1, is a relatively data sparse region of the world however it is interesting for several reasons. It is a region marked by political conflict. Rapid population growth and water scarcity are common throughout the area, rendering it sensitive to changes in climate. This emphasizes the importance of good meteorological and climatic knowledge to...

Public infrastructure in Third World cities is generally in a fairly poor condition. The quality of infrastructure services is further eroded by the rapid population growth in most of these cities. Poor infrastructure reduces the profitability of modern sector manufacturing and may therefore inhibit industrialization. The present analysis demonstrates that there may arise situations with stable...

We consider a fractional differential equation of order α, α∈(2,3], involving ψ-Caputo derivative subject to initial conditions on function and its first an integral boundary condition that depends the unknown function. As application, we investigate world population growth. find α ψ for which solution our model describes given real data better than available models.

Bacterial populations growing in a changing world must adjust their proteome composition in response to alterations in the environment. Rapid proteome responses to growth medium changes are expected to increase the average growth rate and fitness value of these populations. Little is known about the dynamics of proteome change, e.g., whether bacteria use optimal strategies of gene expression fo...