This article examines forms of shared access to technology where some privileges of ownership are retained. Sharing is defined as informal, non-remunerative resource distributing activities where multiple individuals have a relationship to a single device as purchaser, owner, possessor, operator and/or user. In the specific case of mobile phones in rural Uganda, dynamics of social policing and ...

Numerous studies document the urban poor disadvantage in child health conditions in African cities. This study uses DHS data from 23 countries in sub-Saharan Africa to examine whether the urban poor experience comparable disadvantages in maternal health. The results show that although the urban poor on average receive better antenatal and delivery care than rural residents, they consistently ha...

What is not so obvious is that the health of the poor is harmed in proportion to the size of the gap between rich and poor. It isn't the absolute level of poverty that matters so much as the size of the gap between rich and poor. In other words, "...what matters in determining mortality and health in a society is less the overall wealth of that society and more how evenly wealth is distributed....

Jiawen Deng 1,2, Juan D. Jaramillo 2, Peter Hänggi 2,3,4,5 and Jiangbin Gong 1,2,* ID 1 NUS Graduate School for Integrative Science and Engineering, Singapore 117597, Singapore; [email protected] 2 Department of Physics, National University of Singapore, Singapore 117546, Singapore; [email protected] (J.D.J.); [email protected] (P.H.) 3 Center for Quantum Technologies, National Un...

Positivity reduces substantially the allowed domain for spin observables. We briefly recall some methods used to determine these domains and give some typical examples for exclusive and inclusive spin-dependent reactions.

We exhibit some new techniques to study volumes of tubes about algebraic varieties in complex projective spaces. We prove the existence of relations between volumes and Intersection Theory in the presence of singularities. In particular, we can exhibit an average Bézout Equality for equi–dimensional varieties. We also state an upper bound for the volume of a tube about a projective variety. As ...