Many efforts have been made to model the the hot deformation (dynamic recrystallization) flow curves of different materials. Phenomenological constitutive models, physical-based constitutive models and artificial neural network (ANN) models are the main methods used for this purpose. However, there is no report on the modeling of warm deformation (dynamic spheroidization) flow curves of any kin...

Warm inflation dynamics is reviewed. Results on dissipative scalar field dynamics relevant to warm inflation are examined and estimates of radiation production are given.

I’ve always greatly admired the scientific ethos of Journal of Neurophysiology. Reading the Journal reminds me of what I like best about science. I like that it publishes full-length reports, which are still being cited 20 or 30 years on. I like that each paper can stand on its own, without 10 supplemental online figures. While authors will always grumble about reviews (myself included), the re...

Plyometric training is widely used to improve force production, power and jumping ability through specific muscle action called the stretch shortening cycle (SSC). The SSC involves a powerful concentric contraction preceded by rapid eccentric contraction. The efficacy of the SSC is mainly related to the storage of elastic energy during eccentric contraction and its quick release during concentr...

Int J Exerc Sci 3(4) : 214-224, 2010. This study examined the effects of single set dynamic and static stretching on vertical jump height and hip and knee range of motion in a sample of college age recreational males. Forty-two healthy, physically active males (aged 18-24) voluntarily participated in this investigation and were randomly assigned to one of three groups (1 set of 20 seconds dynam...

The purpose of this study was to determine the short-term stabilometric effects of proprioceptive training in athletes by using a BOSU ball and a Swiss ball as unstable platforms. Thirty-seven athletes from a variety of disciplines were divided into a control group (n = 17) and an experimental group (n = 20). Both performed a warm-up, and in addition, the experimental group carried out a propri...

T he latter days of August are the warm-up period for the new academic year and a time when professors reorient toward that part of the job which, for many of us, primarily pays our household bills: teaching students. It is a time during which I often contemplate new course content, teaching strategies, and how to make use of innovations that promote what is popularly called " active learning "...

PURPOSE To investigate how different warm-ups influenced subsequent sled-pull sprint performance in Olympic-level bob-skeleton athletes as part of their preparation for the 2010 Winter Olympics. METHODS Three female and 3 male athletes performed 5 different randomized warm-ups of differing intensities, durations, and timing relative to subsequent testing, each 2 days apart, all repeated twice...