Search results for "AGEING"
showing 10 items of 609 documents
Physical Cross Links in Amorphous PET, Influence of Cooling Rate and Ageing
2003
A Continuous Cooling Transformation (CCT) procedure can be used to distinguish the initial “state” of the amorphous PET samples produced upon solidification from the melt at different cooling rates. The material frozen at this stage behaves as a rubber when brought above the Tg due to the onset of physical cross links. The rubber is not a stable network, however, since physical cross links may eventually dissolve. Their size distribution, and possibly their number, depend on cooling rate and ageing. Some may be even stable above the glass transition and act as nuclei for further crystallization from the glass. Upon increasing cooling rate, size distribution becomes smaller and stability of …
Promoting active ageing through a physical exercise program aimed at reducing frailty and risk of falling among older adults
2017
Introduction: Risk of falling and frailty have been revealed as the most important conditions causing dependency among older people [1]. Older adults taking physical activity regularly can benefit of a proper maintenance of muscle strength and mass, which helps to retain function and independence, and to prevent falls and other injuries [2]. Concretely, the effectiveness of balance and strength training programs on the reduction of falls [3] and frailty [4] has been sufficiently proved.Theory/Methods: This study was conducted to evaluate the effect of an intervention based on a physical exercise program addressed at 65+ people suffering from risk of falling and frailty, and ultimately aimed…
Proces starzenia się ludności a możliwości kreowania miejsc pracy i nowych kierunków kształcenia na podstawie badania sytuacji osób starszych, któryc…
2016
Proces starzenia się ludności, który z coraz większym nasileniem obserwujemy w Polsce, wywołuje liczne skutki w sferze społecznej i gospodarczej. Rosnący udział osób starszych w społeczeństwie powoduje konieczność zabezpieczenia ich potrzeb, wśród których na pierwszy plan wysuwają się potrzeby zdrowotne, finansowe, potrzeba wsparcia w życiu codziennym oraz kontaktów międzyludzkich. Przeprowadzone przez autorki badania dotyczące sytuacji osób starszych, których dorosłe dzieci przebywają za granicą pokazały, że stopień zaspokojenia poszczególnych potrzeb jest zróżnicowany w zależności od ich rodzaju, a największe deficyty występują w sferze kontaktów międzyludzkich i aktywnego uczestnictwa w …
The signature of longevity in Sicily
2019
Ageing is a natural and physiological condition that is the result of compromised stress response, homeostatic imbalance and increased risk of developing diseases. However, if aging with good health and functions (successful ageing) and aging with disease and disability (unsuccessful ageing) depends on a combination of “positive features”, including genetic, epigenetic and phenotypic characteristics in combination with favourable environment, economic status and social involvement. In our study, we summarize some key points for the identification of a longevity signature, with a particular focus on long-living Sicilian individuals and centenarians. Analysing three different Sicilian cohorts…
Dietary Patterns and Healthy Ageing
2021
Ageing is a complex process in which multiple factors are involved that can contribute to determine whether a person will or not be affected by diseases that are more frequently observed in advanced age. The factors involved comprise genetic, environmental, behavioural, and dietary factors, which influence pathways that regulate the ageing process and the life expectancy, rendering longevity a multifaceted phenomenon. Even if a miraculous elixir or pill is not yet available, there is general agreement that nutrition has a major impact on the overall mortality and on the development of age-related chronic non-communicable diseases. Nutrition research has focused for decades on single nutrien…
The effect of age on mitogen responsive T cell precursors in human beings is completely restored by interleukin-2.
1992
Abstract It is well known that the function of T lymphocytes is significantly impaired by advancing age. In the present study, attempts have been made to further characterize the T cell impairment of elderly subjects. Thus, we have performed limiting dilution microculture analysis to evaluate the precursor frequency of T lymphocytes responding to a mitogenic stimulus in old and young subjects. Furthermore we have evaluated the activity of recombinant interleukin-2 (rIL-2) on these cells. The results demonstrate that in older subjects the frequency of these precursors is significantly decreased. The in vitro treatment with rIL-2 increased the frequency of mitogen responsive T lymphocyte prec…
High-Speed Machines: Typologies, Standards, and Operation under PWM Supply
2018
This paper presents an overview of the most recent state of the art in the field of high-speed electric machines fed through high-frequency converters. This type of systems is rapidly wide spreading in aeronautical and automotive applications, as well as microturbines. Each typology has its own advantages and downsides, which are analytically presented in this paper. Some types of high-speed electric machines require high-frequency voltage supply, highly stressing the dielectric materials of the winding insulation system. For this reason, in high-speed electric drives, premature failure may occur and a reduction of the total system reliability has been observed in the past years. Such issue…
Benefits of a dance group intervention on institutionalized elder people: A Bayesian network approach
2018
[EN] The present study aims to explore the effects of an adapted classical dance intervention on the psychological and functional status of institutionalized elder people using a Bayesian network. All participants were assessed at baseline and after the 9 weeks period of the intervention. Measures included balance and gait, psychological well-being, depression, and emotional distress. According to the Bayesian network obtained, the dance intervention increased the likelihood of presenting better psychological well-being, balance, and gait. Besides, it also decreased the probabilities of presenting emotional distress and depression. These findings demonstrate that dancing has functional and …
Rewarding ageing employees—means used in the public sector
2005
Abstract Finland along with the rest of Europe will face considerable challenges in the next five to ten years due to changing age structures. The large number of ageing and aged employees, the baby-boomers, as well as the remarkably low birth rates that have occurred ever since the beginning of the 1980s, have led to a social phenomenon never experienced before. These changes should be considered when designing and implementing human resource strategies in organisations and institutions. This study considers the rewarding of ageing employees as a function of human resource management, and moreover rewarding is considered as an important function of age management. The purpose of this study…
Biological age, health, and health-risk indicators among 25-57-year-old men in two parts of Finland.
1975
Biological age, health and health-risk indicators were examined among 460 systematically chosen men, aged 25–57 years, in two parts of Finland. Morbidity rates and the prevalence of some health-risk indicators were higher and the standard of living lower in North Karelia than in South-West Finland. The index of biological age (IBA) did not show significant differences between the districts and did not correlate with health-risk indicators. People working in physically hard occupations (industrial and mining workers) were found to have more diseases and had higher IBA values than had workers in lighter occupations. The results suggest that both ageing and morbidity are regulated by occupati…