Electrochemical behavior of copper electrode in different solutions of adrenalin chydrogentatrate and catechol

Galvanic anodic polarization of copper electrode at different current densities in electrolytes of different pH values containing adrenaline hydrogen tartarte [AHT] and catechol [Cat.] have been studied. The effect of complex formation on the underlying anodic reactions and inhibition effect of these complexes on copper electrode is also studied. The cathodic deposition of copper in the prepared complexes on the surface of the cathode is involved to check their stability at different pH values and the effect of this stability on cathodic behavior of copper electrode

Studies on the reaction products of iron with catecholamine and noncatecholamine

Catecholamine plays essential roles in the life chemistry, viz., the nature of biosynthesis, secretion and metabolism [1,2] It has direct action on sympathetic effective cells interacting with the receptor sites on the cell membrane, in cases where the sympathetic nerve has been cut or inhibited pharmacologically. On the other hand, noncatecholamines exert at least part of their effect by releasing physiological catecholamine from the postganglionic nerve fibers [3]. The choice of the extraction method and procedure of separation of catechol-and non-catecholamines depend on the nature of biological materials from which they have been separated and is suitable for direct bioassay or their colourimetric determination [4]. A number of extensive reviews have been appeared, covering aspects of environments of catecholamine in biological materials [3-6]. Many very stable complexes and chelates have been formed between mono, di-and polyhydric phenols with transition metals. Visible and ultravilot spectra of several transition metal complexes of pyrocatechol and tiron were studied. [7] Electronic absorption spectra of Co [III] and Cu [II] pyrocatechol complexes in solid state and in aqueous were also studied [8]. Reactions of 1,2 diphenol with iron [III] solutions were reported by Lumir et al[9] The main objective of the present study involves structure elucidation of the chelates formed between complexed iron and catecholamine. The combination between analytical and inorganic studies on the mixed ligand chelates formed enables understanding the nature of chemical reactions occurring

Comparative study between different anticoccidials with special reference to their effect on broiler performance

This experiment was conducted to evaluate the performance of broiler chickens subjected to dietary supplementation with different anticoccidials: Monensin, Salinomycin, and Halofuginone. Broilers were grown to 42 days of age on diets supplemented with Monensin [1 g/kg], Salinomycin [1 g/kg], or Halofuginone [0.5 g/kg] and continued on unmedicated diets to 49 days of age. There was a significant difference [P >0.5] among anticoccidials regarding the final body weight, feed conversion and mortality rates compared with the control group. Halofuginone appeared to be the anticoccidial of choice from the economic point of view

Incidence of pathogenic infective agents in water sources of Beni-Suef governorate and methods of prevention

Seventy-two ground water samples [driven wells] and 36 surface water samples [Ebrahimia Canal and its tributaries] were collected from different localities in Beni-Swif Governorate and subjected to bacteriological examinations and chemical analysis for determination of their hygienic conditions for animal consumption. The heterotrophic plate count for all ground and surface water samples ranged from zero to 210 x 10 3 colonies/ml and 60 x 10 3 to 350 x 10 3 colonies/ml, respectively. The total coliform count ranged from zero to 19 colonies/ml for the ground water samples but for the surface one was from 1 x 10 3 to 36 x 10 3 colonies/ml. The fecal Strep. count ranged from zero to 15.2 colonies/ml for the ground water samples but for the surface one was from zero to 150 colonies/ml. The isolated microorganisms were E. coli, Citrobacter, Enterobacter, Serratia, Providencia, Yersinia, Pseudomonas, Strep. fecalis and Strep. faecium for the surface water and Shigella, Klebsiella and Proteus for the ground water beside the isolated microorganisms of the surface water. The respective figures of the chemical analysis of the ground and surface water amounted to pH 6.5-7.3 and 6.5-7.1, ammonia 0.8 to 2.8 mg/L and 0.89-4.6 mg/L, nitrate 0.2-15.2 mg/L and 0.4-6.03 mg/L, nitrite 0.01-0.32 mg/L and 0.01-0.09 mg/L, phosphate 3.8-13.5 mg/L and 3.9-40.5 mg/L, chloride 90-440 mg/L and 10-101 mg/L, hardness 68-400 mg/L and 10-320 mg/L

Some epidemiological features of addiction among industrial workers in Zagazig area, Sharkia Governorate

5378 industrial workers in Zagazig area were interviewed and examined by a questionnaire and urine screening for detection of drug dependence. These revealed 663 drug dependend workers [12.3%]. The latter group was further subjected to medical examination, liver function testing and personality scaling. The dependent workers were all males, relating mainly in the middle age group and with neurotic personality. The dependent workers were abused tobacco [45%], hashish [15.6%], caffiene [11.9%], simple analegesics [11.9%] and tobacco and caffiene [11.3%]. Alcohol and benzodiazepines were misused by 3.3% and 0.9% of addicts, respectively. The drug dependence had adverse effects on social life, general health and liver function of abusers when compared with control group. The drug dependent workers showed a higher mean value of days-off-work than non dependent. Moreover, the productivity and the quality of their work were adversely affected by their habit of drug abusing

Effects of cigarette smoking on serum lipids and lipoproteins patterns on adult and middle age Egyptians

196 volunteers were examined to dertermine the effect of cigaratte smoking on the cardiovascular system. Special reference was given to the role played by cigarette smoking in increasing risk of CHD. It has been found that there is a significant increase in the Co-Hb% in smokers with a positive correlation to the number of cigarettes smoked / day. The role played by nicotine and Co was discussed. It has been also found that cigarette smoking has an atherogenic effect with increased levels of triglyceride, LDC and Apo-B lipoprotcins, a decrease in the HDC and Apo-A lipoproteins. The value of Apo-B / Apo-A ratio as a better index for CHD predection was discussed