Search results for " performance."

Carnitine et performance physique

2003

Resume Objectif. – L’objectif de cette publication est de preciser l’implication de la carnitine dans le fonctionnement normal de la cellule musculaire et d’evaluer l’interet que pourrait representer pour les performances physiques une supplementation en carnitine. Actualites. – Recemment, de nouvelles informations concernant la voie de la biosynthese de la carnitine ainsi que de son transport dans les cellules musculaires ont ete publiees. Les bases moleculaires des deficiences en carnitine ont notamment ete identifiees permettant ainsi de mieux comprendre les mecanismes controlant l’utilisation de la carnitine dans ces cellules. Une analyse aussi exhaustive que possible a ete menee afin d…

Survey On Competence and Administration of Supervisory Board Activities in German Stock-Listed Companies

2017

Abstract According to the agency theory (Jensen & Meckling 1976), it is expected that there exists a positive relationship between corporate governance and company performance which is also generally assumed in recent research (Dignam & Galanis 2016). This relationship is investigated in the study performed by the author of this paper. Two different approaches were chosen in parallel: (1) quantitative data analysis, based on financial figures and corporate governance variables, and (2) a survey of supervisory board members of listed German companies. This paper is about the results of structured interviews with 30 supervisory board members. The survey confirms that corporate governa…

“TRAVERSA FERROVIARIA HP-BB” (HIGH PERFORMANCE BI-BLOCK SLEEPER)”

2011

Thermoeconomic Analysis Under Dynamic Operating Conditions for Space Heating and Cooling Systems in Small Residential Buildings

2018

Due to the social concern for energy savings and ecological improvement necessity in the performance of buildings, new analysis tools emerged. Thermoeconomics connects the physics and economics of energy conversion processes through the second law of thermodynamics. A limited number of thermoeconomic applications in buildings have been proposed, due to the difficulties in dealing with very irregular energy load profiles and unsteady plant operating conditions, which require the use of dynamic approaches that increase the complexity of the method. The present study highlights the potential of thermoeconomics as a support for decision making, due to the capability to identify trade-offs betwe…

''No Gender Difference in Peak Performance in Ultra-Endurance Swimming Performance - Analysis of the 'Zurich 12-h Swim' from 1996 to 2010''

2012

Eichenberger, Evelyn | Knechtle, Beat | Christoph, Alexander Rust | Knechtle, Patrizia | Lepers, Romuald | Rosemann, Thomas; International audience; ''The aims of the study were to [1] investigate the performance trends at the 'Zurich 12-h Swim' in Switzerland from 1996 to 2010; and [2] determine the gender difference in peak performance in ultra-endurance swimming. In total, 113 male and 53 female swimmers competed in this indoor ultra-endurance event while swimming in a heated pool. The number of male participants significantly increased (r(2) = 0.36, P = 0.04) over time while the participation of females remained unchanged (r(2) = 0.12, P = 0.26). In the age group 0.05). The best perform…

Extending SSD lifetime in database applications with page overwrites

2013

Flash-based Solid State Disks (SSDs) have been a great success story over the last years and are widely used in embedded systems, servers, and laptops.One often overlooked ability of NAND flash is that flash pages can be overwritten in certain circumstances. This can be used to decrease wear out and increase performance.In this paper, we analyze the potential of overwrites for the most used data structure in database applications: the B-Tree. We show that with overwrites it is possible to significantly reduce flash wear out and increase overall performance.

Dynamic Potential of Feedback in Self-Regulated Learning and Motivation of Children with Mathematical Learning Difficulties

2017

Ovim istraživanjem želio se ispitati učinak vrste povratnih informacija (feedback-a) na učenje i motivaciju djece s teškoćama u učenju matematike. Procijenjena je izvedba 76-ero djece - polaznika petih razreda na zadacima računanja, kao i njihova motivacija za rješavanje matematičkih zadataka, s obzirom na vrstu povratne informacije: trenutnu korektivnu povratnu informaciju te odgođenu konvencionalnu povratnu informaciju. Rezultati istraživanja pokazali su da su djeca imala značajno bolji rezultat kada im je bila pružena trenutna korektivna povratna informacija, nego kada im je pružena odgođena konvencionalna povratna informacija. Rezultati također ukazuju da pružanje trenutne povratne info…

Happy-Productive Teams and Work Units: A Systematic Review of the ‘Happy-Productive Worker Thesis’

2019

The happy-productive worker thesis (HPWT) assumes that happy employees perform better. Given the relevance of teams and work-units in organizations, our aim is to analyze the state of the art on happy-productive work-units (HPWU) through a systematic review and integrate existing research on different collective well-being constructs and collective performance. Research on HPWU (30 studies, 2001-2018) has developed through different constructs of well-being (hedonic: team satisfaction, group affect; and eudaimonic: team engagement) and diverse operationalizations of performance (self-rated team performance, leader-rated team performance, customers' satisfaction, and objective indicators), t…

Effects of a Resistance Training Protocol on Physical Performance, Body Composition, Bone Metabolism, and Systemic Homeostasis in Patients Diagnosed …

2022

Parkinson’s disease (PD) is a neurodegenerative disorder characterized by motor impairments and it is correlated with loss of bone mineral density. This study aimed to analyze the effects of resistance training on bone metabolism, systemic homeostasis, body composition, and physical performance in people with PD. Thirteen subjects (age 64.83 ± 5.70) with PD diagnosis were recruited. Participants performed neuromuscular tests, body composition assessment, and blood sample analysis at baseline, and after an 11 weeks-training period. Each training session lasted 90 min, three times a week. The participants had significant improvements in the timed up and go (p < 0.01), sit to stand (p < …

Effects of a Postural Exercise Program on Vertical Jump Height in Young Female Volleyball Players with Knee Valgus

2022

Background: Although a knee valgus position is related to the increase in injury risk in volleyball players, there is a lack of studies on the relationship between knee valgus and vertical jump (VJ) performance. Hence, the aim of this study was to investigate the effects of a postural exercise program on VJ height in young female volleyball players with knee valgus. Methods: This pilot study included 19 young female volleyball players divided into the following groups: the Valgus Experimental Group (VEG); the Valgus Control Group (VCG); and the Neutral Control Group (NCG). All three groups carried out the same volleyball training program. In addition, only the VEG underwent a 3-month postur…