background: : permanent slide preparation of nematodes especially small ones is time consuming, difficult and they become scarious margins. regarding this prob­lem, a modified double glass mounting method was developed and com­pared with classic method. methods: a total of 209 nematode samples from human and animal origin were fixed and stained with formaldehyde alcohol azocarmine lactophenol (...

BACKGROUND Permanent slide preparation of nematodes especially small ones is time consuming, difficult and they become scarious margins. Regarding this problem, a modified double glass mounting method was developed and compared with classic method. METHODS A total of 209 nematode samples from human and animal origin were fixed and stained with Formaldehyde Alcohol Azocarmine Lactophenol (FAAL...

A new polyaniline/BiYTi2O7 polymer composite was synthesized by chemical oxidation in-situ polymerization method for the first time. The effect of polyaniline doping on structural and catalytic properties of BiYTi2O7 was reported. The structural properties of novel polyaniline/BiYTi2O7 have been characterized by X-ray diffraction, scanning electron microscopy, X-ray photoelectron spectroscopy a...

Formaldehyde has been classified as carcinogenic to humans (WHO IARC group 1). It causes leukaemia and nasopharyngeal cancer, and was described to regularly occur in alcoholic beverages. However, its risk associated with consumption of alcohol has not been systematically studied, so this study will provide the first risk assessment of formaldehyde for consumers of alcoholic beverages.Human diet...

Although crustaceans are traditionally preserved in liquids (formaldehyde and/or ethyl alcohol), those substances tend to alter their morphological aspects. Glycerin, used human anatomy, is considered a good substitute for formaldehyde, as it preserves animals states similar vivo conditions. There no records the literature, however, concerning use of glycerin conserving invertebrates. The objec...

The stainability of neural elements is determined during the various stages of tissue preparation which precede impregnation. The hypothesis (Romanes, 1950) that variations in the physiological state of the neurones at the time of fixation might influence the stain was examined. Feeding and anaesthesia did not influence the staining of gastric nerve fibres under the conditions of the experiment...

Formaldehyde is an important chemical that mostly handled in aqueous solutions, which generally also contain methanol; furthermore, solutions of formaldehyde other alcohols are used. The density these thermophysical property. available models the formaldehyde-containing however, all have shortcomings, such as a poor accuracy or limited range applicability. Therefore, present work, new model sys...

A laboratory prototype of a microcomputer-based analyzer was developed for quantitative determination of formaldehyde in liquid samples, based on catalytic chemosensing elements. It was shown that selectivity for the target analyte could be increased by modulating the working electrode potential. Analytical parameters of three variants of the amperometric analyzer that differed in the chemical ...

CO 2 can be enzymatically reduced to methanol in a cascade reaction involving three enzymes: formate-, formaldehyde- and alcohol dehydrogenase (FateDH, FaldDH, ADH).