51 research outputs found
Modulation of cardiac contractility by muscle metaboreflex following efforts of different intensities in humans.
GRIDA3âa shared resources manager for environmental data analysis and applications
GRIDA3 (Shared Resources Manager for Environmental Data Analysis and Applications) is a multidisciplinary project designed to deliver an integrated system to forge solutions to some environmental challenges such as the constant increase of polluted sites, the sustainability of natural resources usage and the forecast of extreme meteorological events. The GRIDA3 portal is mainly based on Web 2.0 technologies and EnginFrame framework. The portal, now at an advanced stage of development, provides end-users with intuitive Web-interfaces and tools that simplify job submission to the underneath computing resources. The framework manages the user authentication and authorization, then controls the action and job execution into the grid computing environment, collects the results and transforms them into an useful format on the client side. The GRIDA3 Portal framework will provide a problem-solving platform allowing, through appropriate access policies, the integration and the sharing of skills, resources and tools located at multiple sites across federated domains
Social and Behavioral Rhythms is Related to the Perception of Quality of Life in Old Adults
Introduction:
The purpose is to verify in old adults if social and behavioral rhythms (SBRs) are correlated with a positive perception of the quality of life (QoL). Social and behavioral rhythms and related circadian biorhythms are known as central points in the pathophysiology of bipolar disorders. A secondary aim is to see if a similar relationship can be found in Major Depressive Disorder (MDD) in old adults. Sample: 141 people aged â„65
years (58.9% Female).
Methods:
Each subject was evaluated using the Social and Behavioral Rhythms Scale (in which higher scores show more dysfunctional SRBs); SF-12 for QoL and a screening tool for depressive symptoms. They underwent a medical evaluation and blood level assays including cholesterol and triglycerides. The medical diagnoses including MDD were taken into account.
Results:
The Social and Behavioral Rhythms Scale score correlated inversely with SF-12 score (p<0.001) and positively with PHQ9 (p<0.0001). People with MDD had a higher score on social rhythms than controls without (p<0.01). The study highlighted, for the first time, that social and behavioral rhythms have a role in old adults living in the community.
Conclusion:
Further longitudinal studies with a sufficient number of individuals will be required to confirm these data and clarify causal links of the association
Moderate exercise improves cognitive function in healthy elderly people: Results of a randomized controlled trial
BACKGROUND: Physical activity in the elderly is recommended by international guidelines to protect against cognitive decline and functional impairment. OBJECTIVE: This Randomized Controlled Trial (RCT) was set up to verify whether medium-intensity physical activity in elderly people living in the community is effective in improving cognitive performance. DESIGN: RCT with parallel and balanced large groups. SETTING: Academic university hospital and Olympic gyms. SUBJECTS: People aged 65 years old and older of both genders living at home holding a medical certificate for suitability in non-competitive physical activity. METHODS: Participants were randomized to a 12-week, 3 sessions per week moderate physical activity program or to a control condition focused on cultural and recreational activities in groups of the same size and timing as the active intervention group. The active phase integrated a mixture of aerobic and anaerobic exercises, including drills of âlife movementsâ, strength and balance. The primary outcome was: any change in Addenbrooke's Cognitive Examination Revised (ACE-R) and its subscales. RESULTS: At the end of the trial, 52 people completed the active intervention, and 53 people completed the control condition. People in the active intervention improved on the ACE-R (ANOVA: F(1;102)=4.32, p=0.040), and also showed better performances on the memory (F(1;102)=5.40 p=0.022) and visual-space skills subscales of the ACE-R (F(1;102)=4.09 p=0.046). CONCLUSION: A moderate-intensity exercise administered for a relatively short period of 12 weeks is capable of improving cognitive performance in a sample of elderly people who live independently in their homes. Clinical Trials Registration No: NCT0385811
Field sampling of soil pore water to evaluate the mobile fraction of trace elements in the Iglesiente area (SW Sardinia, Italy)
STUDIO DI UN SISTEMA INFORMATIVO PER LA GESTIONE DELLE EMERGENZE IN SEGUITO A EVENTI CALAMITOSI IN SARDEGNA
Variations and controls on the copper/arsenic ratios in waters at the Furtei gold mine, Sardinia, italy
Purification and properties of Oryza sativa Cu-Zn superoxide dismutase
Superoxide dismutase has been purified to homogeneity from Oryza sativa germinated seeds growth in the dark. The purified enzyme contained two electrophoretically distinct bands on continuous gel electrophoresis or analytical gel electrofocusing. SDS-PAGE showed a single band of an M(r) 15 000 while gel chromatography on Sephadex G 100 showed a single peak of an M(r) 32 000. It contained two Cu and two Zn ions. The spectra of ultraviolet and visible regions were similar to those of Cu-Zn mammalian and plant superoxide dismutases. The activation energy was estimated at 16 Kcal mol(-1)
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