Microporous ceramic material, based on β-tricalcium phosphate β-Ca3(PO4)2 with grain size 2–5 μm, pore smaller than 10 mm, and density 1.22 g/cm3 corresponding to ~40% of the theoretical (3.07 g/cm3) β-Ca3(PO4)2, was obtained from a powder mixture given molar ratio Ca/P = 1.5 after firing at 1100 °C. A homogenized synthetic dicalcium hydrogen phosphates 1 calcium citrate tetrahydrate Ca3(C6H5O7...

Permeability is an important aspect of sediment remediation. It well-known that oyster shells can be used for remediation, however the influence pyrolysis temperature on permeability remains unknown. In this study, we examined and remediation using crushed less than 5 mm in size were pyrolyzed at 350 °C (POS350) 600 (POS600) six hours. Based results variable head test, POS600 has greater POS350...

The roles of sphingosine and sphingosine 1-phosphate in Ca2+ signaling following platelet-derived growth factor (PDGF) receptor stimulation were investigated in the oligodendrocyte cell line CEINGE cl3, using single-cell fura-2 microfluorimetry and videoimaging. Two different Ca2+ responses were observed, which differed in their delays and kinetics. The first response, which occurred after a sh...

Phosphorus (P) is one of the essential macronutrients for plant growth and reproduction. Plants acquire P from the soil solution as phosphate anions. However, phosphate anions are extremely reactive and may be immobilized through precipitation with cations such as Ca2+, Mg2+, Fe3+ and Al3+, depending on the particular properties of the soil and as a result, the phosphate is highly insoluble and...

Glucose (20 mM) and 4-methyl-2-oxopentanoate (10 mM) both caused a pronounced stimulation of insulin release and of [3H]inositol phosphate production in rat pancreatic islets prelabelled with myo-[3H]inositol. Secretory responses to these nutrients were markedly impaired by lowering the Ca2+ concentration of the incubation medium to 10(-4)M or less, whereas stimulated inositol phosphate product...

Background: Surveys in Tanzania show that pregnant women have a significant burden of oral disease, although there is still little literature on the variation their intraoral electrolytes. The present study investigated changes salivary calcium (Ca2+), phosphate (PO43−), and hydrogen (H) ions during pregnancy correlation between pH hemoglobin levels. Methodology: A cross-sectional involved sixt...