We investigate the performance of robust estimates of multivariate location under nonstandard data contamination models such as componentwise outliers (i.e., contamination in each variable is independent from the other variables). This model brings up a possible new source of statistical error that we call “propagation of outliers.” This source of error is unusual in the sense that it is genera...

Introduction: Neutron contamination is very harmful for the patients receiving radiation therapy due to the high relative biological effect of neutrons. Medical linear accelerators head are made up of materials with high atomic numbers, and High-energy photons interaction with heavy materials can produce neutron contamination. In this study, neutron equivalent dose, neutron spe...

background: microorganisms on various surfaces in industrial and residential environments can spread infectious diseases. their control is thus a major concern. the aim of this study was to survey the bacterial contamination of elevator buttons in schools of isfahan university of medical sciences, isfahan, iran in the summer of 2011. methods: this study was done as a cross sectional research. a...

I n the early 1990s, bacterial contamination of blood components was recognized as the most common cause of transfusion-transmitted infection, accounting for between 14 and 24% of transfusion associated fatalities reported to the US Food and Drug Administration and various hemovigilance systems. Because platelets (PLTs) are stored at room temperature, they provide a hospitable environment for t...

Based on our experience, it was found that seller is a class III drug with 20% toxicity. The has an irritating effect the skin and eyemucosa. daily dose 0,72mg/kg/ day. Has no carcinogenic, mutagenic, embryotoxicaction. As result of research, insecticide isdetermined by amount atmospheric air jobs allowed, maximum permissible levels in food, possible possiblesoil contamination

A method is described for direct analysis of lead in blood utilizing the carbon rod atomizer. Aliquots of whole blood are analyzed without pre-treatment. Resuits are comparable to those for a similar non-flame technique in which whole blood samples were prediluted with “Triton X-100.” The small sample volumes required and the minimal sample preparation further diminish the possibility of spurio...

clinical signs, para-clinical tests and gross lesion can be used for identification of parasite contamination. in most parasite contamination the clinical signs are not obvious. thus, para-clinical tests and gross lesion play important roles in identifying parasite disease as all organs of animals such as skin, eyes, kidneys, liver and digestive tube can be affected by the parasites. consequent...

the poultry slaughter processing in abattoirs may result in carcass contamination with different pathogens. this survey was carried out to evaluate the slaughtering process effects on hygienic status of poultry carcass slaughtered in hamedan industrial abattoir. for this purpose, samples were taken from breast skin surface with swab and template randomly. therefore, counting of total aerobic pl...

During processing, fecal material may contact broiler carcasses externally or internally. A study was conducted to determine the effect of external vs. internal fecal contamination on numbers of bacteria on broiler carcasses. In each of 3 trials, 12 carcasses just prior to evisceration were obtained from a commercial processing plant, placed on a shackle line, and eviscerated with commercial eq...

The skin is the largest organ in the human body, and it is populated by a large diversity of microbes, most of which are co-evolved with the host and live in symbiotic harmony. There is increasing evidence that the skin microbiome plays a crucial role in the defense against pathogens, immune system training and homoeostasis, and microbiome perturbations have been associated with pathological sk...