PURPOSE OF THE STUDY The aim of the study was to demonstrate, by three-phase bone scintigraphy, radionuclide uptake at the site of defects in long bones filled with the non-resorbable bioactive glass-ceramic material BAS-0 at a long follow-up. MATERIAL Twenty patients, 14 men and 6 women, operated on between 1990 and 2000 for benign bone tumors or tumor-like lesions localized in the femur, ti...

We measured carbon, nitrogen, protein, bacterial and microalgal abundance, and minerals p e c ~ f ~ c surface area m sediments from the feeding zone of undisturbed Saccoglossus korualewskyi, as well as In their fresh egesta. Comparison of results using surficial material (> 1 mm) and the top 3 mm of sediments indicated ingestion of surficial material by the enteropneusts. Assuming the surficial...

This second phase of the study of "Uptake of Radioactive Phosphorus in Experimental Tumors" deals with the uptake of P32 by malignant tissue, in comparison with that by inflammatory ocular tissue, and an investigation of the influence of vascularity upon the uptake of P32 in normal, inflammatory, and neoplastic tissues. There has been some speculation as to the effect of vascularity upon the up...

The paper reports a histological and immunohistochemical description of oocyte growth and ultrastructural aspects of zona radiata (ZR) formation as well as the relationship between plasma estradiol-17beta, (E2) levels and ovarian development in swordfish (Xiphias gladius L.) from the Mediterranean Sea. Ovaries were inactive during March to mid April; maturation occurred during late April to Jun...

poinsettia as an ornamental pot plant is widely grown in peat-based substrates with high phosphorus (p) fertilization. the aim of current study was to evaluate the p demand of poinsettia according to its depletion ability during the growth stages by using a mechanistic simulation model. for this purpose, rooted poinsettia cuttings were grown in the medium with 80: 20 (v: v %) peat+ mineral comp...

The negative and positive effects of alumina nanoparticles have been reported for various plant species, while the mechanism that brings about these effects has not yet been clearly understood. Here, the effects of different concentrations of nano-scale alumina on growth and enzymatic antioxidant system of wheat seedlings are investigated. The results show while root growth is affected by the n...

background: a field study on the transfer of primordial radionuclides 238u, 232th, 40k and fallout radionuclides 210po in different plant species in tropical forest of western ghats environment is presented. material and methods: the top storey, second storey, shrubs and epiphytic plant species were chosen and concentration of these radionuclides in plant and soil were measured by employing gam...

total concentrations of mineral elements in soil bear little relation to their availability for plants. the dgt (diffusive gradients in thin-films) technique has been found to be a good predictor of trace metals, micronutrients, phosphorous and potassium bio-availability and uptake. in the dgt technique, elements are accumulated on a binding gel after their diffusive transport through a hydroge...

background: this study aims to investigate the patterns of bioaccumulation and depuration of copper in the selected kidney and liver of capoeta fusca. methods: the fish were collected between september and november 2010 from a qanat in birjand. they were exposed to two types treatments with copper (0.25 and 0.75 mg/l) for a period of 41 days. the fish under study were exposed to the above-menti...

the effect of nitrogen (n) levels on n uptake by high weed densities at early growth stages of corn (zea mays l., cv. double cross 370) was investigated for two years (2008-2009) at the agricultural research station of shiraz university. the experiment was arranged in a split-plot arrangement in the randomized complete blocks design with three replications. two levels of weed control (weedy and...