purpose to verify whether active recovery (ar) applied after a kickboxing match resulted in better performance in anaerobic tests when compared to passive recovery (pr). methods eighteen kickboxers volunteered to participate on a kickboxing match preceded and followed by anaerobic tests: squat jump (sj), the counter movement jump (cmj) and the upper-body wingate test. blood lactate (bl), heart ...

background: ascorbic acid (vitamin c) is one of the most commonly water soluble vitamins. extra energy is necessary for the exercise is not often attributed to intake of vitamin c, long-term and intense exercise can lead to oxidative damage to cellular compounds and also contribute to muscle fatigue and decrease exercise performance. limited data are available regarding to the efficacy of vitam...

background: noise is defined as unwanted or meaningless sound that apart from auditory adverse health effects may distract attention from cues that are important for task performance. human performance is influenced by many job-related factors and workplace conditions including noise level. objective: to study the effect of noise on human performance. methods: the participants included 40 healt...

The recent years have seen a considerable increase in the number of cluster systems. These systems provide a very good performance-cost ratio. However, in order to meet the requirements for ever-increasing computing power of present day applications, several SMP cluster systems have emerged. By deploying two or more processors per workstation can increase the performance of a cluster significan...

The chapter provides an overview of virtual music communities focusing on novel collaboration environments aiming to support networked and geographically dispersed music performance. A key objective of the work reported is to investigate online collaborative practices during virtual music performances in community settings. To this effect, the first part of the chapter is devoted to reviewing d...

The present paper addresses the dynamics of innovation, by extending the analysis beyond a static-economic perspective. It offers a dynamic-institutional mapping of relational capacities to dynamically innovate. Its main goal is to contribute to the abovementioned research theme by presenting a new methodology able to pinpoint different trends in the relational capacities of institutions when t...

This is a survey paper. In this paper various methods used for power estimation in wireless communications have been discussed. Wireless communications has become an inseparable part of our life. Power consumption is one of the major factors that decide the communication system quality. Accurate power estimation has an important role for power control and handoff decisions in mobile communicati...

Recently, underwater wireless sensor network is one of the popular research topics to scientist. There are many novel methodologies to reach the goal of the effectiveness network performance such as cluster-based structure, in-network data aggregation, etc. In this paper, we assume the network is clustered by a specific clustering scheme. Then, we suggest a new geographicaldata-aggregation meth...

Big Data aims at the efficient processing of massive amounts of data. Performance modeling is often used to optimize performance of systems under development. Based on experiences from modeling Big Data solutions, we describe some problems in applying performance modeling and discuss potential solution approaches.