the aim of this study was to evaluate aflatoxin contamination in feed and milk in dairy farm in kermanshah. alfalfa, corn silage and milk samples from 9 industrial and semi industrial dairy farms were collected during 2 months. blood samples were collected via tail venipuncture from 10 % of dairy cows in each farm for biochemical and hematological parameters. aflatoxin contamination in feeds an...

PURPOSE Wearing goggles over contact lenses while swimming is often recommended by eye care professionals. Limited data are available to assess this recommendation. The purpose of this study was to examine whether wearing goggles while swimming limits bacterial colonization on contact lenses and whether the type of lens worn affects contamination rates. METHODS Twenty-three subjects underwent...

background: existence of bacterial host cell dna contamination in biopharmaceutical products is a potential risk factor for patients receiving these drugs. hence, the quantity of contamination must be controlled under the regulatory standards. although different methods such as hybridization assays have been employed to determine dna impurities, these methods are labor, intensive and rather exp...

Accidental or intentional release of radioactive materials into the living or working environment may cause radioactive contamination. In nuclear medicine departments, radioactive contamination is usually due to radionuclides which emit high energy gamma photons and particles. These radionuclides have a broad range of energies and penetration capabilities. Rapid detection of radioactive contami...

Background & Aims of the Study: One way to increasing shelf life of meat is the production of sausages along with additives. One of these additives contains nitrite that in an acceptance limit is not a threat for human health but if it's amount is higher than standard, it will react in the body with secondary amine and the result is the formation of...

Mycotoxins are unavoidable contaminants of food grains, feeds, medicinal herbs, and spices, posing as health threat to animals and humans. The objective of this study was to screen medicinal herbs and spices for fungi and mycotoxin contamination and evaluate their safety. Sixty-three samples were examined for fungal contamination and fungal load determined using standard microbiological method....

We estimate analytically the second-order cosmic microwave background temperature anisotropies at the recombination epoch in the squeezed limit and we deduce the contamination to the primordial local non-Gaussianity. We find that the level of contamination corresponds to f con NL = O(1) which is below the sensitivity of present experiments and smaller than the value O(5) recently claimed in the...

Presence of heavy metals in agriculture soils above the permissible limit poses threats to public health. In this study, concentrations of seven metals were determined in agricultural soils from Yuhang county, Zhejiang, China. Multivariate statistical approaches were used to study the variation of metals in soils during summer and winter seasons. Contamination of soils was evaluated on the basi...

Fifty samples of artisan salami purchased in Veneto (Italy) were analysed for the determination of ochratoxin A (OTA). The analytical method, based on a sample preparation procedure with immunoaffinity columns (IACs), together with analysis by high-performance liquid chromatography with fluorescence detection (HPLC-FD), has guaranteed a high rate of recovery (about 97%), limit of detection (LOD...