Diurnal variation of upper tropospheric humidity and its relations to convective activities over tropical Africa E. S. Chung, B. J. Sohn, J. Schmetz, and M. Koenig School of Earth and Environmental Sciences, Seoul National University, Seoul, Korea European Organisation for the Exploitation of Meteorological Satellites (EUMETSAT), Darmstadt, Germany Received: 20 October 2006 – Accepted: 19 Decem...

purpose: to evaluate diurnal variations in intraocular pressure (iop) in normal adult residents of yazd city.  methods: this cross-sectional study was performed on 800 eyes of 400 subjects aged between 20-80 years selected by cluster random sampling from residents of yazd city during 2004-2005. iop was measured by goldman applanation tonometer in the morning (8-9 am) and evening (8-9 pm). the d...

Background: The variation of the radon progeny concentration in outdoor environment and meteorological parameters at fine resolution were studied for one year at a continental location, National Atmospheric Research Laboratory, Gadanki, India.  Materials and Methods: The concentrations were measured using Alpha Progeny Meter by collecting air samples at a height of 1 m above the Earth&rsqu...

It has been known for many hundreds of years that asthma is worse at night. Sir John Floyer in his classic 'Treatise of the Asthma' (1698) wrote: 'I have observed the fit always to happen after Sleep in the Night when Nerves are filled with windy Spirits, and the heat of the bed has rarified the Spirits and Humours'. l Although these exacerbations are a well established clinical phenomenon, the...

BACKGROUND AND PURPOSE A circadian variation with a morning peak on waking and arising is known to occur in both blood pressure (BP) and cardiovascular event onset. A second peak in BP has been described to occur after an afternoon sleep (siesta). This study was designed to investigate the hypothesis that the 2-peak diurnal variation of BP is dependent on physical activity and occurs in paralle...