Solid - Solid interaction in pure and Li[2]O-doped Cr[2]O[3]/CuO System

Cr[2]O[3]/CuO systems having the formulae 0.2 Cr[2]O[3]/CuO and 0.5, Cr[2]O[3]/CuO were prepared by mixing the calculated amounts of copper nitrate trihydrate with CrO[3] dissolved in the least amount of distilled water sufficient to make pastes. The obtained pastes were dried at 100°C then calcined at 500, 700 and 900°C. The solid-solid interactions between chromium and copper oxides were investigated by using DTA and XRD techniques. The effects of Li[2]O-doping [1.5 and 4.5 mol%] of the systems investigated on solid-solid interactions taking place between Cr[2]O[3] and CuO have been also investigated. The results revealed that the investigated mixed solids [copper nitrate and CrO[3] underwent thermal decomposition at about 370°C yielding CuO and Cr[2]O[3-] Chromium oxide interacted readily with CuO producing copper chromate [CuCr[2]O[4]] at temperatures starting from 500°C. The produced phase remained thermally stable by heating at 700°C then converted into CuCrO[2] by heating at 900°C. Li[2]O-doping of the investigated system enhanced the chromate formation and hindered the reduction of some of cupric into cuprous oxides

Aspirated pneumonia in toxic coma report 200 cases with 4 died

A retrospective study of 200 cases of aspirated pneumonia suffering from toxic coma with a mortality percentage of 2% in ICU was carried out. Most cases were aspirated at home with a mortality percentage of 30%. This research included clinical presentation, examination, investigations [pH of aspirated, x-ray, blood gas, blood count, bacteriology], complication and analysis of four patients died in ICU

Frequency of suicidal attempts by benzodiazepins methods of dertermination during the intoxicatin time

Benzodiazepine groups of drugs are much used, acute intoxication to this family became 21% of patients admitted to ICU in spite of that mortality is nil in addition to 30% of calls for help. The different benzodiazepines are frequent and derived from the same basic molecule. Chromatography and immunological enzymes, morbidity and drug adduction of benzodiazepine group need more attention

Respective roles of gastric lavage, hemodialysis, hemoperfusion, diuresis and hepatic metabolism in the purification of meprobamate

On the admission of massive meprobamate intoxication, the blood level was 460 mg/l [H8]. Initial shock [H8-H12] was treated successfully with dobutamine and volume expansion. When hemodialysis and hemoperfusion were started [H18], the blood meprobamate level was 340 mg/l and at the end of the procedure [H29] was 110 mg/I. The recovery was uneventful. The respective part of different rotes of elimination was: Gastric lavages [l: H8, 2: h26]=66g; hepatic metabolism [H8-H28]=9.2 g [calculated]; hemodialysis [H18-H29]=8.15 g; hemoperfusion [hemo-pur-charcoal][H20- H28]=7.15 g [measured by elution]; diuresis 26 hours =2g. These data emphasized the following facts: Correct amounts of the drug were extracted by hemoperfusion and hemodialysis; gastric lavage remains the less invasive and most productive method for extraction and the role of hepatic metabolism has to be taken into account in the recovery of such patients

Effect of hydrocele on testis and spermatogenesis

The present study was carried out on 50 patients with a large unilateral hydrocele to assess the effect of large unilateral hydrocele on structure and function of the testis. It is seen that a big hydrocele of tunica vaginalis is associated with impairment of spermatogenesis and atrophy of the testis

Effect of interaction between the tricyclic antidepressant [Doxepin] and the B-adrenoceptor blocker [timolol] on the brain monoamines and systemic arterial blood pressure. [Experimental and clinical study]

Daily oral administration of timolol 5 mg/kgm for 2 weeks in albino rats produced significant increase in whole brain [A] and [NA] concentration while [5-HT] was significantly reduced. Doxepin administration 10 mg/kgm/day orally for 2 weeks induced significant increase of rat whole brain [A] and significant reduction of [NA] and [5-HT]. The effects of concurrent timolol and doxepin administration on brain [A], [NA] and [5-HT] were similar to effects of timolol but of less magnitude. In patients with mild to moderate hypertension timolol oral therapy [10 mg b.i.d.] induced a highly significant reduction of both diastolic and systolic pressures, while doxepin therapy 25 mg b.i.d. orally for 2 weeks alone or concurrently with timolol [10 mg b.i.d.] induced just significant reduction of diastolic pressure but the systolic pressure was insignificantly lowered, these effects were significantly less than the effects of timolol therapy alone. The effects of timolol or doxepin therapy as well as the effects of interaction between them on the arterial blood pressure could be partly explained by the changes induced by these druge in the brain monoamines estimated in the present work