Background Limited data exist on the prevalence and distribution of sedentary behavior (SB) in multiple sclerosis (MS). Objective The objective of this paper is to describe sitting time as a metric of SB in a large national sample of people with MS. Methods A total of 8004 individuals from the North American Research Committee on MS (NARCOMS) Registry completed the sitting time question fro...

Background: Attention deficit hyperactivity disorder (ADHD) is the most common chronic mental disorder among children. Children with ADHD may be at risk for a variety of nutrients' deficiencies. We aimed to assess the nutrients' intakes among ADHD children and compare them with the healthy ones. Methods: This was a hospital-based case-control survey over 120 ADHD as the cases and 240 non-ADHD c...

AIM To determine changes in brain haemodynamics produced by dexamethasone; to evaluate the pathophysiological conditions involved in the effect of dexamethasone. METHODS A prospective study was made of 12 ventilated preterm infants who received dexamethasone (0.25 mg/kg/12 hours) for ongoing chronic lung disease or extubation failure. Cerebral blood flow (CBF), absolute cerebral blood volume ...

Sector field ICP-MS has been used to determine 239+240 Pu activity and 240 Pu/ 239 Pu atom ratio profiles in a sediment core obtained in 1997 from the Danube Delta region of the Black Sea. The 239+240 Pu activity profile reveals the presence of a 1963 stratospheric fallout peak, along with two more recent peaks stemming from fluvial transport of Chernobyl Pu through the Danube watershed into th...

INTRODUCTION Preanalytical specifications for urinalysis must be strictly adhered to avoid false interpretations. Aim of the present study is to examine whether the preanalytical factor 'time point of analysis' significantly influences stability of urine samples for urine particle and dipstick analysis. MATERIALS AND METHODS In 321 pathological spontaneous urine samples, urine dipstick (Urisy...

Ozone column amounts obtained by the total ozone mapping spectrometer (TOMS) in the southern polar region are analyzed during late austral winter and spring (days 240-300) for 1980-1991 using area-mapping techniques and area-weighted vortex averages. The vortex here is defined using the -50 PVU (1 PVU = 1.0 x 10(-6) K kg-1 m2 s-1) contour on the 500 K isentropic surface. The principal results...