The reaction between hydrogen peroxide and myoglobin (or haemoglobin) ferric haem is a two -electron redox process, yet the stable final product is ferrylhaem, retaining only one oxidizing equivalent. The ferrylhaem produced from the reaction enhances oxidation-related toxicity associated with inflammation, ischemia and hemolytic disorders. The aim of this study was to compare sickle cell and n...

an efficient, mild and environmentally friendly method was reported for the synthesis of an efficient, mild and environmentally friendly method was reported for the synthesis of pyranopyroles from aryl aldehydes, ethyl acetoacetate, malononitrile and hydrazine hydrate in the presence of catalytic amounts of methyl imidazolium hydrogen sulfate ([hmim][hso4]) as an efficient catalyst. these synth...

FERRIC SULFATE BY HUMIDITY BUFFER TECHNIQUE AND RAMAN SPECTROSCOPY AT 0.1 MPa. W. G. Kong, Alian Wang and I-Ming Chou Dept. Earth and Planetary Sciences and McDonnell Center for Space Sciences, Washington University, St. Louis, MO 63130, USA ([email protected]), 2 School of Space Science and Physics, Shandong University, Weihai, 264200, China. 3 954 National Center, U.S. Geological Survey,...

Nonylphenol (NP) is an ultimate degradation product of nonylphenol polyethoxylates (NPE) that is primarily used in cleaning and industrial processes. Its widespread use has led to the wide existence of NP in various environmental matrices, such as water, sediment, air and soil. NP can be decreased by biodegradation through the action of microorganisms under aerobic or anaerobic conditions. Half...

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...

The aim of the present research is studying the effect of potassium permanganate addition on the pre-oxidation and coagulation of the surface water. River Nile and El Rayah El Tawfeky of Benha city, Egypt were the surface water supply used in this research. The results showed that El Rayah El Tawfeky raw water had higher turbidity concentration and humic acids absorbance (8.5 NTU and 0.024, res...

THE ASYMMETRIC UNIT OF THE TITLE COMPOUND [SYSTEMATIC NAME: (R,R)-2,4-bis-(4-hydroxy-phen-yl)-N,N'-dimethyl-3-oxapentane-1,5-diammonium bis-(hydrogen sulfate)], C(18)H(26)N(2)O(3) (2+)·2HSO(4) (-), contains one half-cation and one hydrogen sulfate anion. The cation has crystallographically imposed twofold symmetry with the rotation axis passing through the central ether O atom. Hydrogen bonds b...

Introduction: Almost all flow models for martian gullies to date have assumed liquids that exhibit viscosities on the order of 1 cP (10 Pa.s) such as pure water [1,2] and liquid carbon dioxide [3]. Alternatively, salt solutions have been suggested based on thermodynamic and kinetic arguments as a way to stabilize liquid water in present day martian conditions [4,5]. We have recently proposed th...

INTRODUCTION Formocresol has been a popular pulpotomy medicament for many years. It is considered the "gold standard" in pediatric dentistry. However, concerns have been raised over its use in children. It has been reported that formocresol has toxic and mutagenic effects in cell culture, dental crypts, and precancerous epithelial cells. Therefore, additional biocompatible treatment alternative...

The use of Trypticase soy agar modified by the addition of 0.05% ferric ammonium citrate and 0.01% sodium thiosulfate for the determination of indole, phenylpyruvic acid, anthranilate, kynurenine, and hydrogen sulfide reactions is described.