Calcium is the third most crucial nutrient for andean blackberry; however, its absorption limited in acid soils, and low mobility plant decreases effects on fruits. Therefore, effect of foliar fertilizers with calcium blackberry fruits was estimated. In three locations, experiments were established five sources (Ca chelate, CaB nitrate, Ca oxide, CaBZn gluconate) a control without calcium, appl...

background: despite the wide range of applications, there is a serious lack of information on the impact of the nanoparticles on human health and the environment. the present study was done to determine the range of dangerous concentrations of iron oxide nanoparticle and their effects on mouse embryonic stem cells. methods: iron oxide nanoparticles with less than 20 nanometers diameter were enc...

This paper refers to an experiment of SO2 absorption to the three different sorbents: calcium-oxide (CaO), calcium-carbonate (CaCO3) and dolomite (CaMg(CO3)2). In the reactor under the condition of oxidation atmosphere with the mass of sorbent (sample) of 100 g with fractional composition of 500-700µm, the gas temperatur...

INTRODUCTION The aim of the present study was to evaluate the biocompatibility of two modified formulations of Portland cement (PC) mixed with either titanium oxide or both titanium oxide and calcium chloride. METHODS AND MATERIALS Polyethylene tubes were filled with modified PCs or Angelus MTA as the control; the tubes were then implanted in 28 Wistar rats subcutaneously. One tube was left e...

This study aimed to compare the apical sealing of root-end fillings performed with Lysanda (zinc oxide-eugenol paste) with radiopacifiers (iodoform or zinc oxide) and calcium hydroxide. Root-end cavities were prepared and filled with different materials, as follows: Group I - Lysanda paste with iodoform; Group II - Lysanda paste with iodoform and calcium hydroxide; Group III - Lysanda paste wit...

Introduction Approximately 6 years ago, nitric oxide was identified as the endothelium-derived relaxing factor (EDRF), the endogenous vasodilator mimicked by nitroglycerin and nitroprusside [ 1-41. An astonishing variety of tissues synthesize nitric oxide, which has important roles in the control of systemic blood pressure, respiration, digestion, penile erection, platelet aggregation, cerebral...

In order to improve the whiteness of fly ash, the particles were coated by in-situ precipitation of calcium carbonate. After different mass ratios of calcium oxide to fly ash were mixed into water, a certain amount of carbon dioxide was bubbled into the mixture to form a precipitated calcium carbonate deposit on the surface of fly ash. With the help of scanning electron microscopy (SEM), the pr...

The N-methyl-D-aspartate (NMDA) receptor plays a key role in synaptic plasticity and is thought to underlie memory, learning and development of the nervous system. The NMDA receptor is a ligand-gated ion channel complex that contains distinct recognition sites for endogenous and exogenous ligands, including glutamate, glycine, Mg2+, Zn2+ and noncompetitive blockers such as MK-801. In the centra...

In this study, we aimed to investigate the peripheral antinociception effects of specificphosphodiesterase 5 (PDE-5) inhibitor vardenafil on carrageenan-induced nociception in rats,and the role of calcium besides the L-arginine- nitric oxide (NO)- cyclic guanosine monophophate(cGMP) pathway in these effects. Hyperalgesia was induced by the intraplantar injection of 0.1mL fresh carrageenan solut...