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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.

The genetic control of programmed cell death (apoptosis) in human endothelial cells

King, Andrea Rebecca 1999 (has links)
No description available.

Factors affecting accumulation of lipofuscin age pigment in arthropod neural tissue and its use as an ecological tool for age determination

Fonseca, Duane Barros 2002 (has links)
This project aimed to explore factors that modulate neurolipofuscin accumulation, using two experimental arthropod species, the locust, Locusta migratoria, and the freshwater crayfish, Pacifastacus leniusculus. The pattern of age-related accumulation of neurolipofuscin in L. migratoria was found to differ from that previously reported for crustaceans, with little accumulation prior to maturity and an exponential increase with high variability thereafter. It was shown, for the first time in any crustacean, that unilateral eyestalk ablation reduces neurolipofuscin accumulation rate in the contra-lateral eyestalk of P. leniusculus. It is hypothesized that this represents either reduced lipofuscinogenesis due to neurohormonal effects on oxidative catabolism or increased lipofuscin degradation by accelerated proteolysis following CNS damage. This finding means that longitudinal measurements of lipfuscin, i.e. in the same individual, by eyestalk biopsy, cannot be used to assessa natural lipofuscin accumulation rates in individuals of unknown age. Neurolipofuscin accumulation rate in ablated signal crayfish was found to be strongly inversely correlated with physiological age, with old individuals generally losing lipofuscin after ablation. Although this pattern is likely to be an artefact of ablation, it is the first quantitative evidence of in vivo reversibility of lipofuscin accumulation for any species and has important gerontological implications. Annual cohorts were detected by modal analysis of a neurolipofuscin concentration histogram for a pond population of P. leniusculus for the first time. Growth curves fitted to the length-at-age data obtained from this analysis were compared with results of three conventional methods for growth curve estimation: size-frequency analysis, anniversary tag-recapture and laboratory rearing. This analysis highlighted problems with extrapolation of growth rates from laboratory rearing to the field. Neurolipofuscin methodology is the only approach that can give age-length data for older individuals in the wild population and measurements of longevity.

Äldres behov och tillgång till aktivitet och social samvaro - Ur vårdpersonalens synvinkel

Melin, Emma 2014 (has links)
Syftet med den här uppsatsen är att undersöka hur vårdpersonalen på ett äldreboende resonerar kring äldres behov av aktivitet och social samvaro. I arbetet undersöks hur vårdpersonalens rutiner ser ut och hur social samvaro och aktivering prioriteras för de äldre. Jag använt mig av tidigare forskning, semistrukturerade intervjuer och tre teorier – disengagemangsteorin, aktivitetsteorin och signifikanta andra för att svara på frågeställningarna. Genom semistrukturerade intervjuer med tre personer som arbetar på ett äldreboende fann jag att respondenternas svar överensstämmer med tidigare forskning beträffande att aktivering och social samvaro är viktigt för de äldre. Respondenterna anser att tid för aktivering och social samvaro finns för de äldre och att det måste prioriteras om den äldre själv vill och orkar. Vårdpersonalens resonemang liknar både disengagemangsteorin och aktivitetsteorin, personalen anser att det är den äldre själv som bestämmer i vilken mån aktivering och social samvaro ska prioriteras.



Multi-dimensional view of quality of life amongst the elderly in Seoul, Korea

Choi, Jae Yong 1998 (has links)
No description available.

Strength, power and functional ability of healthy elderly people

Skelton, Dawn Alexandra 1995 (has links)
No description available.

Interactions of different ageing theories : development of a unifying model

Kowald, Axel 1992 (has links)
No description available.

Central 5-HT function in aged rats

Robson, Lindsay 1994 (has links)
No description available.

The performance of older eyewitnesses on photographic identification lineups

Rose, Rachel Anne 2002 (has links)
No description available.

Exercise prescriptions for fitness and bone health in elderly women

Murphy, Niamh M. 1999 (has links)
No description available.

A longitudinal investigation of mirror self-recognition, pretend play and imitation in human infants

Nielsen, M. G. Unknown Date (has links)
No description available.

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