introduction: developmental changes in atrioventricular nodal conduction time and refractoriness have been shown in several studies. prevalence of atrioventricular nodal reentrant tachycardia (avnrt) is clearly age-dependent. the purpose of this study was to determine developmental changes of basic and frequency-dependent electrophysiological properties of the atrioventricular node (av-node) in...

this paper develops an operational perspective of supply chain sustainability, by considering it as a risk management process. it explores the nature of sustainability-related supply chain risks, distinguishes them from typical supply chain risks and develops an analytical process for their management. an empirical study is conducted to generate insights about how sustainability-related risks s...

results addiction potential was positively related to personality characteristics. we found that those with the highest addiction potential (47%) exhibited the following 3 traits: char­acteristics of schizophrenia, psychological exhaustion, and depression. conclusions there were no significant differences in the addiction potential among the students with respect to grade, field of study, age, ...

this talk will introduce the idea that talent development is related to learning where learning is the physiological process of neuro-plastic changes in the brain. to develop talents, individuals must move from novice or beginner’s status to expertise levels of knowledge or skills in a particular domain. learning depends on maximizing an individual’s potential through the experiences he or she ...