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Biomedical subjects

A Ashtekar

Publications and source records attributed to A Ashtekar.

11 recordsLinked to original sources
PubMed2000

Generic isolated horizons and their applications

The notion of isolated horizons is extended to allow for distortion and rotation. Space-times containing a black hole, itself in equilibrium but possibly surrounded by radiation, satisfy these conditions. The framework has three types of applications: (i) it provides new tools to extract physics from strong field geometry; (ii) it leads to a generalization of the zeroth and first laws of black hole mechanics and sheds new light on the "origin" of the first law; and (iii) it serves as a point of departure for black hole entropy calculations in nonperturbative quantum gravity.

Journal Article↗
PubMed1994

Detection of intrafamilial child abuse: children at intake at a children's observation home in India.

Cross-cultural studies have brought awareness that child abuse is a global problem. This study sought to assess whether the abuse of children by caregivers/parents is a phenomenon that is prevalent in Indian society, where social workers and other human service professionals traditionally have not been sensitive to its occurrence. Interviews with 515 children brought to a Children's Observation Home in Bombary resulted in self-reports of physical violence from approximately 50% of the sample, and of these, over two-thirds reported the use of abusive violence. In addition, over 60% of the children who had run away from home cited violence by parents as the primary reason for their leaving, suggesting that this may be one of the variables adding to the numbers of street children in India. Feelings about perpetrators and implications of findings are discussed.

Adolescent↗