Gerontology: Ageing more gracefully

Eating well: ageing gracefully!

The potential impact of dietary manipulation on the maintenance of physical and cognitive function between middle and old age has profound consequences for optimization of health, independence and well-being for the latter years. This review article considers four key areas: the role of diet and longevity; potential dietary measures to prevent sarcopenia; diet and cognitive function; and dietar...

Ageing between Gerontology and Biomedicine

Over the past two decades, public interest in the basic biological processes underlying the phenomenon of ageing has grown considerably. New developments in biotechnology and health maintenance programmes appear to be forging new relationships between biology, medicine and the lives of older people. A number of social scientists describe the process as the ‘biomedicalization of aging’. In this ...

“growing Old Gracefully?”: Ageing in Post-apartheid South Africa

Gracefully Degradable Pipeline Networks

A pipeline is a linear array of processors with an input node at one end and an output node at the other end. This paper presents k-gracefully-degradable graphs which, given any set of up to k faults, contain a pipeline that uses all the healthy processor nodes. Our constructions are designed to tolerate faulty input and output nodes, but they can be adapted to provide solutions when the input ...

Phagosome maturation: aging gracefully.

Foreign particles and apoptotic bodies are eliminated from the body by phagocytic leucocytes. The initial stage of the elimination process is the internalization of the particles into a plasma membrane-derived vacuole known as the phagosome. Such nascent phagosomes, however, lack the ability to kill pathogens or to degrade the ingested targets. These properties are acquired during the course of...