OBJECTIVE To determine the agreement between devices and repeatability within devices of the forced expiratory volume in 1 s (FEV1), forced vital capacity (FVC), peak expiratory flow (PEF) and forced expiratory flow at 50% of FVC (FEF50) values measured using the four spirometers included in the study. METHODS 50 (24 women) participants (20-64 years of age) completed maximum forced expiratory...

We use conventional, microwave and ultrasound assisted sequential extraction, of defined time and power, techniques for extractions of Cd, Cu, Cr, Ni, Pb and Zn in sediments and certified material. We did not change the conditions of extractions through steps, cause we what to see is there difference in extraction results for the certified material and sediments. We use lower powers and time fr...

Chromium (Cr) is a heavy metal that naturally occurs in the Earth’s crust, and can be found in groundwater in either the trivalent, Cr(III), or in the hexavalent, Cr(VI), form. While Cr(III) is considered an essential trace element for the human body, Cr(VI) is potentially dangerous for human health although the type and intensity of the effect are still being investigated. The widespread use o...

In aqueous extracts of rat brain, spinal cord, and sciatic nerve, a protein antigen has been detected which could not be shown in similarly prepared extracts of a variety of other rat tissues. The protein, designated antigen (Y, had a high mobility in zone electrophoresis at pH 7.4. Antigen cr was isolated and was found to consist of a single type of subunit having a molecular weight of about 3...

The effect of oral creatine supplementation on aerobic and anaerobic performance was investigated in 16 elite male rowers during 7-day endurance training. Before and after the daily ingestion of 20 g creatine monohydrate for 5 days (Cr-Group, n=8) or placebo (Pl-Group, n=8), subjects performed two exercise tests on a rowing ergometer: (a) incremental exercise consisting of 3-min stage durations...

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Introduction In computed tomography (CT) technology, an optimal radiation dose can be achieved via changing radiation parameters such as mA, pitch factor, rotation time and tube voltage (kVp) for diagnostic images. Materials and Methods In this study, the brain, abdomen, and thorax scaning was performed using Toshiba 16-slice scannerand standard AAPM and CTDI phantoms. AAPM phantom was used for...

BACKGROUND The purpose of this study was to assess the usefulness, safety, and efficacy of intra-arterial (IA) infusion chemotherapy for patients with locally advanced oral commissure cancer. METHODS Twenty-one patients with stages III and IV squamous cell carcinoma involving the mouth angle were recruited. Methotrexate (MTX; 50 mg/day) was continuously infused into the external carotid arter...

Heavy metals concentrations in muscles of Synodontis courteti and Mormyrus macrophthalmus from lower River Benue, Ibi, Taraba state was examined. The heavy concentration the species under consideration studied with atomic absorption spectrophotometer (AAS). Bulk Model 210VGP scientific equipment. Results obtained confirmed occurrence levels following (lead (Pb), cadmium (Cd), chromium (Cr), cop...