In the analysis and synthesis of controllers for hybrid systems, it is often required to verify whether two controllers for a given hybrid plant are equivalent. This is not easy to do because one needs to verify that the two controlled hybrid systems generate the same sequence of discrete events and the same trajectory for continuous variables for the given initial conditions. In this paper, we...

Carrying heavy loads in the Himalayan region is a real challenge. Porters face extreme ranges in terrain condition, path steepness, altitude hypoxia and climate for 6-8h a day, many months a year, since they were boys. It has been previously shown that, when carrying loads on level terrain, porters' metabolic economy is higher than in Caucasians but the reasons are still unknown. We monitored N...

Introduction The cardiovascular safety of testosterone replacement therapy (TRT) is controversial. While several studies have investigated the association between TRT and risk arterial thrombosis, limited information available regarding its venous thromboembolism (VTE). We aimed to compare VTE in men randomized versus placebo or active-comparator a systematic review. Methods searched Medline, E...

The problems regarding hunter-gatherer/early farmer interactions are quite an important topic in southeast European archaeology. According to the available data, two economic subsistence systems have coexisted for some 2000 years during 6th–4th millennia cal BC (Telegin 1985; Lillie et al., 2001). In areas, hunter-gatherer and early sites located just a few kilometers apart. Southern Buh River ...

Fast brightness variations are a unique tool to probe the innermost regions of active galactic nuclei (AGN). These variations are called microvariability or intra-night variability, and this phenomenon has been monitored in samples of blazars and unobscured AGNs. Detecting optical microvariations in targets hidden by the obscuring torus is a challenging task because the region responsible for t...

OBJECTIVE To investigate the performance of soil-slurry bioreactor used for remediating contaminated soil with 4-nitrophenol (4-NP). METHODS The slurry bioreactor was used to degrade different concentrations of 4-nitrophenol with or without inoculating the acclimated activated sludge. HPLC system (Hewlett-Packard model 5050 with a UV detector) was used for the quantification of 4-nitrophenol....

Previous investigations revealed that most of the fluid regulating hormones showed no consistent relationship to the hypoxic diuretic response (HDR). In this study we examined if adrenomedullin (AM), a hypoxia-mediated diuretic/natriuretic peptide is connected to HDR. Thirty-three persons were examined at low altitude (LA), on the third exposure day at 3440 m (medium altitude, MA) and on the fo...

University of Missouri (Kansas City), c/o American Dermatology Associates, LLC, 6333 Long Avenue, Third Floor, Shawnee, KS 66216, USA Columbia University Medical Center, Department of Dermatology, 161 Fort Washington Avenue, New York, NY 10032, USA Malmo University Hospital, Department of Occupational and Environmental Dermatology, Sodra Forstadsgatan 101, Entrance 47, Malmo SE-20502, Sweden d ...

Investigators often change how variables are measured during the middle of data collection, for example in hopes of obtaining greater accuracy or reducing costs. The resulting data comprise sets of observations measured on two (or more) different scales, which complicates interpretation and can create bias in analyses that rely directly on the differentially measured variables. We develop appro...