Inarguably, the escalation in dollar rates and price instability Nigerian economy underwent significant structural institutional changes. In assessing importance of understanding exchange rates, it becomes imperative to build reliable models for predicting volatility home currency. Hence, this study aims model rate using Markov regime-switching model. The analyses returns two three distinct reg...

Temperature-jump relaxation kinetic studies show that the complex formation between Ca2+ and the metallochromic dye arsenazo III (Ar) is associated with a rapid mode (less than or equal to 10 mus-range) involving both Ca2+ and Na+ of the Na-salt of Ar and a slower mode (approximately 10 ms range) which can be attributed to structural rearrangements in the 1:2 complex CaAr2. The kinetic data sug...

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Several nuclear hormone receptors have been associated with inflammatory reactions. Particularly, liver X receptors (LXRs) have recently been identified as key transcriptional regulators of genes involved in lipid homeostasis and inflammation. LXRs are negative regulators of macrophage inflammatory gene expression. Multiple sclerosis (MS), a demyelinating disease of the central nervous system o...

NCAP algorithm is designed to prevent competitive atrial pacing in Medtronic dual-chamber pacemakers and is nominally 'on'. It is activated on sensing atrial activity (AR) in the postventricular atrial refractory period. AR event does not trigger a ventricular pace. Also, NCAP algorithm delays the A pace for 300 ms (non-programmable in pacemakers) after AR even though, lower rate or sensor indi...

BACKGROUND Coronary angioplasty (PTCA) is a common treatment method in patients with coronary heart disease, but its effects on heart rate variability (HRV) have not been well established. AIM To verify whether the localisation of coronary lesion undergoing PTCA affects HRV parameters. METHODS Ninety six consecutive individuals underwent elective coronary angiography with subsequent ad hoc ...

BACKGROUND Anesthesia sometimes suppresses ventricular tachyarrhythmias (VT) resistant to conventional pharmacological treatment. METHODS AND RESULTS To know (1) whether deep anesthesia inhibits abnormal repolarization-related VT and (2) if α2-adrenoreceptor (AR) agonistic action is associated with the antiarrhythmic effect of anesthetics, the incidence of VT in a rabbit model of acquired lon...

William Torrence, MS Health Science, is a research associate at the University of Arkansas for Medical Sciences, University Mall, 300 S. University Ave., Little Rock, AR 72205; E-mail: [email protected]. Danielle S. Phillips, B.S., is with the Department of Health and Kinesiology, Texas A&M University, College Station, TX 77843. Jeffrey J. Guidry is associate professor, Department of Health &...