Novel polythioetherimides bearing azobenzene moieties were synthesized from azobismaleimides and bis-2-mercaptoethylether. Kinetics of trans-cis photoisomerization and of thermal conversion of cis to trans isomeric forms were investigated in both polymer solution and poly(methyl methacrylate) doped films using electronic absorption spectroscopy. Thermal recovery kinetics is well described by a ...

conclusions the sex differences in the neuroanatomy of the human mirror neuron system affect functional recovery of patients with hemiparesis. the improvement in studied women was found to be significantly greater than studied men. the results indicate a higher chance of recovery among hemiparetic women, especially those watching functional movies. results comparison of all variables related to...

The kinetics of most chemical energy storage/conversion systems depend on the mass transport through matter, which is rate-limited by various kinetic barriers. distinction barriers static and dynamic interfaces helps in reducing their impact therefore enhancing overall kinetics. concept introduced along examples hydrogen storage, thermal storage absorptive media, electrochemical water splitting...

The fault recovery of VSC-HVDC transmission system is often influenced by many factors, such as the reactive power compensation characteristics of the inverter and the dynamic performance of DC controllers. In this paper, the PSCAD/ EMTDC simulation tool is used to study the dynamic recovery performance of VSC-HVDC system for several different var compensating devices in VSC-HVDC inverter-Fixed...

When the potassium in Ringer's solution is increased above 25 mM, frog skeletal muscle contracts and then spontaneously relaxes. Elevated external potassium will not produce tension again until the stimulating potassium has been removed and a recovery process has taken place. The kinetics of this recovery reaction have been studied in toe muscles bathed in choline Ringer's solutions in which th...

The kinetic characteristics of muscle capillary blood flow (Qcap) during recovery from exercise are controversial (e.g. one versus two phases). Furthermore, it is not clear how the overall Qcap kinetics are temporally associated with muscle oxygen uptake (VO2m) kinetics. To address these issues, we examined the kinetics of Qcap estimated from the rearrangement of the Fick equation (Qcap=VO2m/C(...

PURPOSE To examine differences in oxygenation kinetics in the nondominant and dominant flexor digitorum profundus (FDP) of rock climbers. METHODS Participants were 28 sport climbers with a range of on-site abilities (6a+ to 8a French Sport). Using near-infrared spectroscopy, oxygenation kinetics of the FDP was assessed by calculating the time to half recovery (t1/2 recovery) of the tissue-sat...