1550-7998=20 We use the overlapping grids method to construct a fourth order accurate discretization of a first order reduction of the Klein-Gordon scalar field equation on a boosted spinning black hole background in axisymmetry. This method allows us to use a spherical outer boundary and excise the singularity from the domain with a spheroidal inner boundary which is moving with respect to the...

Case reports of sudden death during exertion have not established an association between the sickle-cell trait (hemoglobin AS) and exercise-related death. To test this association, all deaths occurring among 2 million enlisted recruits during basic training in the U.S. Armed Forces in 1977 to 1981 were classified from autopsy and clinical records as non-sudden deaths or as sudden deaths explain...

Molecular biologist Desireé Leach studies the mechanisms of heart disease, leading cause death among Black people in United States.

A black man in California can expect to live 68.6 years on average, which is far below the life expectancy of the average California white male, who can expect to live 75.5 years. Despite the impressive gains in American longevity over the past century, significant disparities in life expectancies such as this one persist across racial and ethnic groups in California. These racial and ethnic di...

OBJECTIVE To examine whether investments made in public health research align with the health burdens experienced by white and black Americans. METHODS In this cross-sectional study of all deaths in the United States in 2015, we compared the distribution of potential years of life lost (PYLL) across 39 causes of death by race and identified key differences. We examined the relationship betwee...

In this letter, we consider static black hole in f(R) gravity.We take advantage from corrected entropy and temperature and investigate such black hole. Finally, we study the $ P - V $ critically and phase transition of corrected black hole with respect to entropy and temperature. Here also, we obtain the heat capacity for the static black hole in $ f(R) $ gravity. This calculation help us...

Studying invisible objects in space that are hundreds of millions light years away may sound impossible. But, recent years, astronomers have developed a new way to investigate type and distant objects—super-massive black holes. Black holes the most densely packed Universe. When stars get close super-massive they can be torn apart, which produces relatively brief but informative flash light. The...