Search results - 242 results

Scientific opinion on the proposed amendment of the EU specifications for titanium dioxide (E 171) with respect to the inclusion of additional parameters related to its particle size distribution

a specification of more than 100 nm for median Feret min diameter and less than 50% of the number of constituent particles below 100 nm; measured by EM in both cases. The Panel, after reviewing the data, concluded ...

Evaluation of a TEM based Approach for Size Measurement of Particulate (Nano)materials

particulate material Abstract: An approach for the size measurement of particulate (nano)materials by transmission electron microscopy was evaluated. The approach combines standard operating procedures for ...

Biosafety risk assessment and management of laboratory-derived influenza A (H5N1) viruses transmissible in ferrets

with some additional biosafety measures. Health Topics:  Avian influenza Aviaire influenza Influenza aviaire Manuscript versions:  DOI:  http://journals.sagepub.com/doi/pdf/10.1177/153567601301800102 ...

The thickness and volume of LLETZ specimens can predict the relative risk of pregnancy-related morbidity

Infant Infants Institute Ireland LLETZ Logistic logistic regression Logistic-regression M measure measures method methods morbidity Objective obstetrical outcomes ON outcome Paper physical POPULATION ...

B. anthracis in a wool-processing factory: seroprevalence and occupational risk.

recommended in Belgium. We conducted a B. anthracis seroprevalence study to investigate risk factors associated with positive serology and advise on protective measures. Overall 12·1% (8/66) employees were ...

Orthogonal chromatographic descriptors for modelling caco-2 drug permeability

The use of chromatographic descriptors as alternative for Caco-2 permeability in drug absorption screening was evaluated. Therefore, retentions were measured on 17 Reversed-Phase Liquid Chromatographic ...

Livestock veterinarians at high risk of acquiring methicillin-resistant Staphylococcus aureus ST398.

during hospitalization, our results underline that preventive measures may need to be developed for veterinary professionals, particularly for livestock veterinarians. Health Topics:  Antimicrobial ...

Association between bone mineral density and hearing loss in osteogenesis imperfecta

audiologic evaluation, 56 adult OI patients were classified as presenting normal hearing or conductive/mixed or pure sensorineural hearing loss. Areal bone mineral density (BMD) (aBMD) was measured using ...

Mutagenicity, antimutagenicity and cytotoxicity evaluation of South African Podocarpus species

of toxicity, as was observed from these extracts. These findings will help in assessing the safety measures to be considered in the use of these species and also the need to determine the cytotoxic ...

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