Search results for "FES"
showing 10 items of 5828 documents
Behavioural adaptations of argulid parasites (Crustacea: Branchiura) to major challenges in their life cycle.
2015
Fish lice (Argulus spp.) are obligate ectoparasites, which contrary to most aquatic parasites, retain the ability to swim freely throughout the whole of their life. In fish farms, they can quickly increase in numbers and without effective control cause argulosis, which results in the reduced growth and survival of their fish hosts. The morphology of Argulus spp, including their sensory organs, is suitable for both parasitism and free-swimming. By spending a considerable amount of time away from their host, these parasites risk being excessively dispersed, which could endanger mating success. Here we present a review of recent studies on the behaviour of Argulus spp, especially the aggregati…
Study of the attitudes and future intentions of nursing students towards working with older people: an observational study
2021
Background: Older people are increasing in the world leading to the fact that many nursing students will work in geriatric care setting. It was also reported the lack of knowledge and interest in working with older people by many nursing students. Therefore, the aim of the study is to explore the attitudes, wills, and intentions for the care of older people from nursing students. Methods: A sample of 383 students (mean age between 17 and 24; females: 76.2%) was divided according to the year. A questionnaire and three scales investigating the attitude for working with older persons (Kogan, Aday-Campbell, Nolan scales) were administered. Simple correlations across the three scales and the com…
The informal caregiver's burden of dependent people: Theory and empirical review.
2009
This paper reviews the main theories and results of the existing research to date about the concept of the informal caregiver's burden. The explanation of the burden concept, the theoretical approaches which attempt to explain it, the variables which have emerged in the investigation, the predictors of its appearance, as well as the intervention programs developed to relieve burden, allow us to approach the appropriate solutions to deal with the current social and political reality of this problem. In this sense, the psycho-educational intervention programs framed within the respite services jointly with the knowledge of the determining variables of the burden can comprise the first optimal…
Physical exercise as an epigenetic modulator: Eustress, the "positive stress" as an effector of gene expression.
2012
Physical exercise positively influences epigenetic mechanisms and improves health. Several issues remain unclear concerning the links between physical exercise and epigenetics. There is growing concern about the negative influence of excessive and persistent physical exercise on health. How an individual physically adapts to the prevailing environmental conditions might influence epigenetic mechanisms and modulate gene expression. In this article, we put forward the idea that physical exercise, especially long-term repetitive strenuous exercise, positively affects health, reduces the aging process, and decreases the incidence of cancer through induced stress and epigenetic mechanisms. We pr…
Anti-aging: Myth or reality
2019
Aging of the world populations embodies a remarkable success of humankind and a source of challenge. Aging is a complex, continuous, multifactorial process that is accompanied by a progressive loss of physical and mental functions and the onset of various age-related diseases, which are not caused by aging per se. Currently, an increasing number of people are asking to arrive at advanced age in good health overcoming the modifications elicited by aging (the dream of remaining young forever). In the past decades there have been remarkable advances in the understanding of the aging process from results of biogerontological research in experimental models, that is, life extension through genet…
Tor-Sch9 deficiency activates catabolism of the ketone body-like acetic acid to promote trehalose accumulation and longevity
2014
In mammals, extended periods of fasting leads to the accumulation of blood ketone bodies including acetoacetate. Here we show that similar to the conversion of leucine to acetoacetate in fasting mammals, starvation conditions induced ketone body-like acetic acid generation from leucine in S. cerevisiae. Whereas wild-type and ras2Δ cells accumulated acetic acid, long-lived tor1Δ and sch9Δ mutants rapidly depleted it through a mitochondrial acetate CoA transferase-dependent mechanism, which was essential for lifespan extension. The sch9Δ-dependent utilization of acetic acid also required coenzyme Q biosynthetic genes and promoted the accumulation of intracellular trehalose. These results indi…
Mediterranean diet and longevity
2019
The world average life expectancy has increased remarkably in the past century and continues to increase relentlessly. A long life is desirable but best if lived in good physical and mental health. Among the various dietary patterns, a large body of research data suggest that the traditional dietary habits and lifestyle unique to the Mediterranean region are associated with lower incidence of chronic diseases and improve longevity. Starting with the first data from the Seven Countries Study, numerous observational, prospective, and trial-based investigations in different populations have thereafter supported the benefits of adhering to the Mediterranean dietary pattern regarding reduced mor…
What are the roles of calorie restriction and diet quality in promoting healthy longevity?
2014
Epidemiological and experimental data indicate that diet plays a central role in the pathogenesis of many age-associated chronic diseases, and in the biology of aging itself. Data from several animal studies suggest that the degree and time of calorie restriction (CR) onset, the timing of food intake as well as diet composition, play major roles in promoting health and longevity, breaking the old dogma that only calorie intake is important in extending healthy lifespan. Data from human studies indicate that long-term CR with adequate intake of nutrients results in several metabolic adaptations that reduce the risk of developing type 2 diabetes, hypertension, cardiovascular disease and cance…
PSYCHOLOGY STUDENTS PERSONALITY TRAITS AND MOTIVATION TO CHOOSE STUDIES
2016
The sample consisted of 83 first course academic and professional psychology program students aged 18-43 years. Research instruments: 1) Demographic survey; 2) BFI (Big Five Inventory, Benet – Martinez & John, 1998), adapted version in Latvian (Austers, 2007); 3) The assessment of psychology studies motivation. Key findings: The most important motivating factors for psychology studies in this sample are interest in psychology and the desire to help. Personality traits are related to the choice of profession motives: Agreeableness and Conscientiousness are positively correlated with the desire to help, Extroversion with a sense of capability for the profession, Neuroticism - with a uncer…
Influence of greenhouse volume/area ratio on soil solarization efficiency
2008
Soil temperature under plastic cover is function of incoming radiation and thermal characteristics of the mulching material and the soil, but it could be also affected by greenhouse characteristics (structure, cover, Volume/Area ratio). The aim of this research was to evaluate the effects of different greenhouse unitary volumes and different plastic mulching on soil temperature and soil solarization efficiency. The experiment was carried out in nonheated greenhouses covered with low density transparent polyethilene (PE), located at the experimental field of AAT Department of Palermo University, Italy (138° 7' N, 13° 22' E). Four Volume/Area (V/A) ratios were tested: 1.5 - 2.0 - 2.5 - 3.0. I…