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Validation of HPLC Analysis of 2-Phenoxyethanol, 1-Phenoxypropan-2-ol, Methyl, Ethyl, Propyl, Butyl and Benzyl 4-Hydroxybenzoate (Parabens) in Cosmetic Products, with Emphasis on Decision Limit and Detection Capability
European Commission. Non-compliant concentrations, taking into account the data distribution (CC a) and the probability of false negative values (CC ß) were determined. The repeatability and reproducibility ...
Decision support tools for clinical diagnosis of disease in cows with suspected bovine spongiform encephalopathy.
25 signs, was made between all 30 BSE cases, confirmed in Belgium before October 2002, and 272 suspected cases that were subsequently determined to be histologically, immunohistochemically, and ...
Protein growth rate in rainbow trout (Oncorhynchus mykiss) is negatively correlated to liver 20S proteasome activity.
We selected fish for high and low growth efficiencies. Protein degradation was estimated from the difference between protein synthesis (determined by 15N flux) and protein growth. We found that protein ...
Evaluation of virulence of Mycoplasma hyopneumoniae field isolates.
genetic differences as determined by randomly amplified polymorphic DNA (RAPD) analysis. Ninety, conventional M. hyopneumoniae-free piglets were inoculated intratracheally with the field isolates, ...
An Alternative Method Validation Strategy for the European Decision 2002/657/EC
1 and 1.5 times the MRL) minimum 8 samples are analyzed on 3 different days. Recovery, repeatability, within-lab reproducibility, CC alfa and CC beta are determined simultaneously. The uncertainty of each ...
Assessment of the clinical and virological protection provided by a commercial inactivated bovine viral diarrhoea virus genotype 1 vaccine against a BVDV genotype 2 challenge.
carried out to determine the cross-protective efficacy of a commercial inactivated vaccine containing a BVDV-1 strain. A group of five BVDV-free calves was vaccinated twice and a second group of five calves ...
Interlaboratory study of a liquid chromatography method for erythromycin: determination of uncertainty
this interlaboratory study. The set-up allowed the determination of the repeatability variance, s(2)r and the between-laboratory variance, s(2)L. Combination of s(2)r and s(2)L results in the ...
Worker caste polymorphism has a genetic basis in Acromyrmex leaf-cutting ants.
resulting from interplay between nurture and nature. Unlike the few other recently discovered examples of a genetic influence on caste determination, the present result does not relate to any rare or ...
Socio-economic differences in the utilisation of health services in Belgium.
by differences in demographic determinants and health needs. DESIGN: Data was obtained from the 1997 Belgian national Health Interview Survey. In this survey information was collected on the health ...
Dual labeling of Pseudomonas putida with fluorescent proteins for in situ monitoring of conjugal transfer of the TOL plasmid.
discriminated on the basis of their fluorescence by using confocal laser scanning microscopy. Conjugal plasmid transfer frequencies on agar surfaces and in sludge microcosms were determined microscopically ...