نتایج جستجو برای: ethylene alcohol
تعداد نتایج: 145097 فیلتر نتایج به سال:
Mycotic aneurysms, which may occur anywhere in the body, may be prone to spontaneous rupture. Antibiotic therapy combined with surgical debridement without or with revascularization has been described as potential treatment options. This report describes a combined balloon occlusion technique with the injection of ethylene-vinyl alcohol copolymer for the treatment of a mycotic aneurysm of the p...
0002-7863/82/1504-6842$01.25/0 the original alcohol substituent. Similar annulations from allylic alcohols via unsymmetrical diallyl ethers are demonstrated by Table I1 entries g-j. The requisite diallyl ethers for photoannulation of 2g-j are readily available by Williamson synthesis from the hydroxy olefin precursors indicated. It is noteworthy that the stereochemistry of the substituent R' in...
A method for cobalt-catalyzed, aminoquinoline-directed ortho-functionalization of sp(2) C-H bonds with alkenes has been developed. Reactions proceed at room temperature in trifluoroethanol solvent, use oxygen from air as an oxidant, and require Mn(OAc)3 as a cocatalyst. Benzoic, heteroaromatic, and acrylic acid aminoquinoline amides react with ethylene as well as mono- and disubstituted alkenes...
Ultrasonic velocity measurements are reported for aqueous solutions of polyvinyl alcohol with different stearates such as zinc stearate and calcium stearate with plasticizer ethylene glycol at 303 K. The data obtained as a function of concentration indicate the magnitude of the contributions due to the relaxation of the backbone and of the side – chain acetyl group. A variety of the different t...
The aim of this study was to evaluate the effect of underwear made of ethylene vinyl alcohol (EVOH) fiber in children with atopic dermatitis (AD). Twenty-one AD children (11 EVOH group and 10 control group) were studied for 4 weeks. Their AD severity based on the Scoring Atopic Dermatitis (SCORAD) score and physiological functions were assessed. The objective SCORAD significantly decreased in b...
The mechanism of selective separation antimony from copper anode slime leachate is studied. Density functional theory used to calculate the unit cell energy, band structure, density states, number charge distributions and overlap populations SbCl3 hydrolysates SbOCl, Sb3O4Cl Sb4O5Cl2, these are studied by infrared spectroscopy. pathways for formation Sb4O5Cl2 in water, ethanol ethylene glycol s...
Ethylene glycol (EG) and methanol are responsible for life-threatening poisonings. Fomepizole, a potent alcohol dehydrogenase (ADH) inhibitor, is an efficient and safe antidote that prevents or reduces toxic EG and methanol metabolism. Although no study has compared its efficacy with ethanol, fomepizole is recommended as a first-line antidote. Treatment should be started as soon as possible, ba...
Objective: The goal of the study is to determine pattern dangerous material presence in field, as well how severely it affects kidney function and can result death. Methods: An observational patients hospitalized poison ward tertiary care hospitals Gwalior was planned. For data collection a structured questionnaire used, which includes questions on demographic information, details poisoned inta...
In this study, an alternative aqueous isopropyl alcohol-free fountain solution for sheet-fed offset printing is prepared comprising 5 w/w% McIlvaine's buffer system pH control, 0.3 Polysorbate 80 as a surfactant, 1 magnesium nitrate hexahydrate conductivity agent and 10 ethylene glycol mono-butyl ether additional wetting agent. The percentages of each composition are active then adjusted to 100...
oxidation of ethylene to ethylene oxide over silver catalyst and selenium modified catalyst has been studied by continuous flow and pulse techniques over the temperature range of 230-280 °c. the results are discussed in terms of reaction mechanisms proposed by others, rejecting mechanisms which involve peroxide formation. it has been shown that not only selectivity towards ethylene oxide produc...
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