Résultats de la recherche - 168 results

Development and validation of chromatographic methods for screening and subsequent quantification of suspected illegal antimicrobial drugs encountered on the Belgian market.

agents, 1 antifungal agent and 1 beta-lactamase inhibitor, covering eleven different antibacterial classes, were selected. The UHPLC- MS screening method with gradient elution is able to selectively detect ...

Study of the underlying mechanisms and consequences of pathogenicity differences between two in vitro selected G1-H9N2 clones originating from a single isolate.

H9N2 clones, selected on different cell types, named MDCK-and CEF-clone in regards to the cell culture used, were studied in vivo, revealing two different virulence phenotypes. Subsequently, the ...

Meta-analysis of the accuracy of p16 or p16/Ki-67 immunocytochemistry versus HPV testing for the detection of CIN2+/CIN3+ in triage of women with minor abnormal cytology.

cervical intraepithelial neoplasia of grade 3 or worse (CIN3 +). METHODS: A literature search was conducted in 3 bibliographic databases. Studies were selected if they included women with ASC- US or LSIL who ...

Towards the use of ion mobility mass spectrometry derived collision cross section as a screening approach for unambiguous identification of targeted pesticides in food

selectivity/sensitivity to gather information and enable the analyst to make informed decisions during the identification process. Here we present and discuss the use of collision cross section (CCS) values in addition to ...

Development and validation of chromatographic methods for screening and subsequent quantification of suspected illegal antimicrobial drugs encountered on the Belgian market

selected. The UHPLC- MS2  screening method with gradient elution is able to selectively detect these 36 compounds within 18 min (including wash and equilibration step). It was validated for sensitivity, ...

Temperature-related changes in airborne allergenic pollen abundance and seasonality across the northern hemisphere: a retrospective data analysis

of multiple pollen (aeroallergen) taxa met the selection criteria. These datasets were analysed in the context of recent annual changes in maximum temperature (Tmax) and minimum temperature (Tmin) ...

Global burden of intellectual disability resulting from prenatal exposure to methylmercury, 2015

(MeHg). An intelligence quotient < 70, indicating intellectual disability (ID), was selected as the critical disease, maternal hair Hg concentration during pregnancy selected as the critical exposure ...

Estimating the Reliability of Low-Abundant Signals and Limited Replicate Measurements through MS2 Peak Area in SWATH

Keywords: MS2 peak area Abstract: Sequential windows acquisition of all theoretical fragment ions mass spectrometry (SWATH- MS) provides large-scale protein quantification with high accuracy and selectivity ...

Longitudinal monitoring of Culicoides in Belgium between 2007 and 2011: local variation in population dynamics parameters warrant cautious use of monitoring data.

total and maximum annual abundance, showing that a consistent higher or lower number of Culicoides could be collected depending on the selected collection site. Yearly, up to 16 and 30-fold differences in ...

Application of whole genome data for in silico evaluation of primers and probes routinely employed for the detection of viral species by RT-qPCR using dengue virus as a case study.

sensitivity and specificity. CONCLUSIONS: We provide a comprehensive overview of dengue virus RT-qPCR method performance that will aid appropriate method selection allowing to take specific measures that aim to ...

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