Wyniki wyszukiwania:

This book examines cultural change through examples of economics and diet among Lacandon Maya families in the small community of Mensabak as they become actors integrated into the larger, global economy. Due to a changing mode of economy, wealth disparities have been created between members of Mensabak resulting in new kinds of tension between community members. In addition, the new Lacandon economy has had some effects on diet as well. Today, the Lacandon are active participants in the global economy and capitalism, choosing to cease traditional subsistence for wage work and now desire...

Here we present a study on the dynamics of plane symmetric gravitational collapse in the presence of charge. We consider both adiabatic as well as non-adiabatic flows of viscous fluid. The Einstein and Maxwell field equations are formulated for general plane symmetric space-time in the interior. Junction conditions between the interior and exterior regions are derived. For the adiabatic case, spacetime for the exterior is taken as plane Reissner-Nordstrom while for the non- adiabatic case, it is described by plane symmetric charged Vaidya spacetime. Using Misner and Sharp ...