Michal Horvath

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Effect-air concentration regressions of 48 common solvents (aromatic, aliphatic, and chlorinated hydrocarbons, alcohols, ketones, acetates) were determined for 4-hr inhalation exposures in male rats and for 2-hr exposures in female mice. Inhibition of propagation and maintenance of the electrically evoked seizure discharge was used as a criterion of the(More)
We estimate nonlinear VARs to assess to what extent Öscal spending multipliers are countercyclical in the United States. We deal with the issue of nonfundamentalness due to Öscal foresight by appealing to sums of revisions of expectations of Öscal expenditures. This measure of anticipated Öscal shocks is shown to carry valuable information of future(More)
In 8 sportsmen and 8 healthy subjects of similar middle age the examination of the myocardial uptake of 123-I HDA and 201-T1 exhibited a correlation of r = 0.88 using our own quantitative circumferential evaluation program. The myocardial kinetics of the 123-I HDA was assessed by different methods: 1. according to Feinendegen et al. (1981), with(More)
INTRODUCTION Foam sclerotization of varicose veins may cause paradoxical embolization through patent foramen ovale (PFO). The aim of our study was to: 1) select an optimal screening method for the detection of PFO; 2) determine the prevalence of PFO in a non-selected population; and 3) test the risk of paradoxical embolization of venous bubbles in patients(More)
In this study, cardiovascular (CV) response to a standard laboratory challenge was compared to 24-hr noninvasive monitoring of heart rate (HR) and blood pressure (BP) in 30 healthy middle-aged train drivers. Laboratory stress test consisted of the orthostatic test, the cold pressor test, the Valsalva maneuver, the Stroop test, and the numerical square. In(More)
The objective of the study was to investigate the chronic effect of low frequency whole body vibration (WBV) on isometric and eccentric strength of knee extensors with different force exertion capacity. It was hypothesized that (1) four-week WBV intervention with the low frequency domain would enhance muscle strength and (2) the improvement would be more(More)