Page 12 - Population Dynamics News Today

Population aging and decline in the developed world is the biggest force shaping the 21st century. The implications of this are so huge that governments and academic institutions prefer to

Girls in rural Kenya were three times more likely to drop out of school after the COVID-19 lockdown, a study says.

China said that the so-called judgment delivered by the "Uyghur Tribunal" is nothing but a political farce staged to curb the development of the Xinjiang Uygur autonomous region and discredit China.

China said that the so-called judgment delivered by the "Uyghur Tribunal" is nothing but a political farce staged to curb the development of the Xinjiang Uygur autonomous region and discredit China.

China said that the so-called judgment delivered by the "Uyghur Tribunal" is nothing but a political farce staged to curb the development of the Xinjiang Uygur autonomous region and discredit China.

China said that the so-called judgment delivered by the "Uyghur Tribunal" is nothing but a political farce staged to curb the development of the Xinjiang Uygur autonomous region and discredit China.

MANILA-The Department of Agriculture (DA) is seeking additional PHP12 billion, on top of the recommended PHP95-billion budget for 2022, to address surmounting food and agriculture global challenges onto the "new world". "We are entering a 'New World' -- the global scale of the 'new normal' as an offshoot of the Covid-19 pandemic -- wherein every country in the world is coping with huge challenges. These include the lingering and mutating Covid-19 (coronavirus disea...

ISLAMABAD: President Dr. Arif Alvi Friday emphasized the role of media and religious scholars to guide the masses on reproductive health,

Is it possible that we are not alone in the universe, but are just like animals in a zoo to the aliens who are watching us?

The Fisher-Kolmogorov-Petrovsky-Piskunov (Fisher-KPP) equation is one of the prototypical reaction-diffusion equations and is encountered in many areas, primarily in population dynamics. An important consideration for the phenomena modelled by diffusion equations is the length of the diffusive process. In this paper, three definitions of the critical time are given, and bounds are obtained by a careful construction of the upper and lower solutions. The comparison functions satisfy the nonlinear,...