Two Latin square design experiments investigated the relationship between hydrogen sulphide concentration in the rumen headspace gas of dairy cows and the early stages of protein degradation in the rumen. In Expt 1, three protein sources differing in rumen N (nitrogen) degradability (maize gluten feed (MGF); sunflower meal (SFM); and soyabean meal (SBM)) were used, whereas in Expt 2 four differ...

BACKGROUND Sulindac is a non-steroidal anti-inflammatory drug which induces regression of colonic polyps in patients with familial adenomatous polyposis. Animal and in vitro studies have shown that both the sulphide metabolite of sulindac, which is able to inhibit cyclo-oxygenase, and the sulphone metabolite, which lacks this ability, are able to inhibit the growth of colonic carcinoma cells. T...

Abstract PVA/PVP films doped with zinc sulphate heptahydrate (ZnSO 4 ·7H 2 O) nanoparticles (NPs) are prepared using an in situ chemical method. Furthermore, as-prepared samples irradiated electron beam at doses of 20, 25, 30, 35, and 40 kGy. Elemental analyses energy dispersive X-ray spectroscopy (EDXS) the fresh showed existence both oxide sulphide as main minor phases sequence. Moreover, sca...

Abstract The aim of the present study was to prepare ZnS nanoparticles co-doped with Li + -Cs , were synthesized using a chemical co-precipitation method. ZnS-(Li ) nanoparticle’s capped L- Arginine and reduced sodium sulphide. main advantage this method is semiconductor nanomaterial wide band gap are chemically stable over long time. as prepared characterised by X-Ray Diffraction technique for...

In this paper we report on ZnS nanoparticles produced by precipitation of zinc acetate and sodium sulphide and stabilized by cetyltrimethylammonium bromide (CTAB) in aqueous media and deposited on montmorillonite (MMT). For the deposition a new method based on intensive cavitation was used. The montmorillonite carrier was first disintegrated by intense turbulent mixing in an ultrasonic field in...

The influence of deposition temperatures on the structural, elemental, optical and electrical properties was investigated. Rutherford backscattering (RBS) scanning electron microscopy (SEM) were used to measure elemental morphological films. RBS confirms that stoichiometry controlled by with a thickness ranged between 51.00 63.00 nm. SEM data deposited films show different morphologies several ...

The dynamics of sulphide oxidation in an experimental biofilm of the green sulphur bacterium, Prosthecochloris aestuarii, were studied using a newly developed light-dark cycling procedure. The biofilm was grown for 6 weeks in a benthic gradient chamber, in which gradients of light, sulphide and oxygen were imposed experimentally. The H2S concentrations and pH were measured with microsensors as ...