The use of sulfate of exogenous origin in the synthesis of chondroitin sulfate was suggested (1) and then demonstrated by the isolation of chondroitin sulfate-W from the cartilage of rats given sulfate-V6 (2, 3). Confirmatory reports have supplemented the earlier observations (4, 5). Autoradiography has been particularly effective in showing that administered sulfate-S36 is concentrated to a gr...

This study evaluated leaf supply of zinc (Zn) and boron (B) using either soluble or sparingly fertilizers in young sweet orange trees. Three experiments were set up a greenhouse to compare two sources four doses (control, low, adequate high) as follows: (i) Experiment I (B): boric acid calcium borate; (ii) II (Zn): Zn sulfate oxide; (iii) III (B + Zn): Sulfate Borate. The effective increasing t...

Shaft lining concrete itself has a certain degree of initial damage before being corroded by sulfate. In order to study the resistance of the concrete of the initial damage in different corrosion solution concentration of sulfate, samples of concrete without initial damage, loaded 50% ultimate load and loaded 70% ultimate load with initial damage concrete were selected and studied their corrosi...

Few published studies present data on relationships between fish mercury and surface or pore water sulfate concentrations, particularly on an ecosystem-wide basis. Resource managers can use these relationships to identify the sulfate conditions that contain fish with health-concerning total mercury (THg) levels and to evaluate the role of sulfate in methyl-mercury (MeHg) production. In this stu...

Assessing sulfate concentration levels and their distributions within road alignments is crucial for the design of highway projects. Sulfate minerals in soils react with calcium-based additives, leading to sulfate-induced heaving pavement failures. However, a reasonable assessment extent using current practices, such as conventional laboratory-based methods, still challenging because spatial he...

Introduction: The most important environmental problem of automotive industries is the produced wastewater due to its various processes. The flocculation and coagulation along with chemical sequestration are among important processes for removing contaminants from wastewaters. The aim of this study is to investigate the efficiency of coagulation and flocculation process along with chemical sequ...

Bifunctional aluminum is prepared by sulfating aluminum metal with sulfuric acid. The use of bifunctional aluminum to degrade methyl tert-butyl ether (MTBE) in the presence of dioxygen has been examined using batch systems. Primary degradation products were tert-butyl alcohol, tert-butyl formate, acetone, and methyl acetate. The initial rate of MTBE degradation exhibited pseudo-first-order beha...

Twelve Hereford-Angus weanling heifers were used in a split:plot design incorporating a randomized complete block to determine physiological effects of subtoxic concentrations of inorganic sulfate in drinking water. Treatments were tap-water (110 mg/liter sulfate), 1,250 rag/liter sulfate and 2,500 rag/liter surface. The sulfate was added to the tap water as sodium sulfate. The sulfate-waters d...

In this study the regulation of squamous cell differentiation in several rat esophageal epithelial cell lines is examined. Nontumorigenic RE-149 cells undergo a program of squamous cell differentiation at confluence. This program of differentiation is influenced by the concentration of calcium in the medium and by the presence of retinoic acid. High calcium concentration stimulates terminal cel...