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The main aim of the study was to determine the role of cerium in the amelioration of calcium-deficiency effects in spinach plants. Spinach plants were cultivated in Hoagland’s solution. They were subjected to calcium-deficiency and to cerium chloride administered in the calcium-present Hoagland’s media and calcium-deficient Hoagland’s media. Within 3weeks,(More)
The influence of calcium-deficiency and cerium addition on the antioxidative defense system in spinach leaves was investigated. It was found that spinach cultivated in calcium-deficiency media developed distinct calcium deficiency symptoms and the plant growth was significantly inhibited as expected. While cerium-treated spinach remained green and expanded,(More)
Chloroplasts were isolated from spinach cultured in calcium-deficient, cerium-chloride-administered calcium-present Hoagland’s media or that of calcium-deficient Hoagland’s media and demonstrated the effects of cerium on distribution of light energy between photosystems II and I and photochemical activities of spinach chloroplast grown in calcium-deficient(More)
STUDY DESIGN Biomechanical and radiographical study. OBJECTIVE To test the hypothesis that stiffness and strength at discrete sites of human lumbar vertebrae depend on the 3-dimentional structure and density of the vertebral-body bone elements, and can be evaluated using models based on vertebral bone characteristics obtained from quantitative computed(More)
STUDY DESIGN A basic science study monitoring changes in the curvature of hand contoured commercially pure titanium (CPTi), titanium-aluminum-vanadium alloy (Ti-6Al-4V), and stainless steel (SS) rods maintained at different temperature conditions. OBJECTIVE To quantify changes in rod-shape at temperatures representative of those used in clinical practice.(More)
BACKGROUND/AIMS To explore the diagnosis value and clinical significance of combined detection of serum pepsinogen I (PG I), pepsinogen II (PG II), PG I/II and CA242 in patients with stomach diseases. METHODOLOGY Serum PG I, PG II and CA242 were detected with time-resolved fluoroimmunoassay (TRFIA) method. Serum levers of the four markers in gastric(More)
The effect of n-butanol on the activity of Na+, K+-ATPase has been found different at different temperatures. Below the phase-transition temperature, n-butanol has a stimulating effect provided the concentration is not higher than 0.3 M. But if the activity is determined above the phase-transition temperature, n-butanol has an inhibitory effect. The(More)
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