The duration of acceleration cycle downturns: duration dependence, international dynamics and synchronisation

the relationship between using language learning strategies, learners’ optimism, educational status, duration of learning and demotivation

with the growth of more humanistic approaches towards teaching foreign languages, more emphasis has been put on learners’ feelings, emotions and individual differences. one of the issues in teaching and learning english as a foreign language is demotivation. the purpose of this study was to investigate the relationship between the components of language learning strategies, optimism, duration o...

Cycle Length Dependence of Human Action Potential Duration In Vivo

Using a new method for long-term recording of monophasic action potentials from the human heart, we studied in 17 patients the effects on ventricular action potential duration (APD) of three clinically pertinent cycle length perturbations: (1) single extrastimuli, (2) abrupt sustained rate acceleration and deceleration, and (3) different steady-state cycle lengths. Results were: (a) APD after s...

International Synchronisation of the Pork Cycle

[The duration of tolerance to positive acceleration].

p R E V I O U S studies of positive g (headward acceleration) 'have concerned, principally, exposure of the seated subject to forces generally limited to a few seconds in du,ration. Beyond this limit in time there is an area of acceleration tolerance remaining virtually unexplored, particularly that area involving accelerations of sub-blackout magnitude. The forces encountered in existing high ...

Effect of cell cycle duration on somatic evolutionary dynamics

Cellular checkpoints prevent damage and mutation accumulation in tissue cells. DNA repair is one mechanism that can be triggered by checkpoints and involves temporary cell cycle arrest and thus delayed reproduction. Repair-deficient cells avoid this delay, which has been argued to lead to a selective advantage in the presence of frequent damage. We investigate this hypothesis with stochastic mo...