Zoekresultaten - 13 results

COVID-19 vaccine effectiveness against symptomatic infection and hospitalisation in Belgium, July 2021 to May 2022.

used a test-negative design and proportional hazard regression to estimate VE i and VE h, controlling for prior infection, time since vaccination, age, sex, residence and calendar week of ...

Spectroscopic approaches for conformity analysis of e-liquids

classify samples according to nicotine and present additives. So, their presence in new suspected samples could be detected. In a second step, PLS regression was applied to estimate the nicotine ...

A new approach to define acceptance limits for hematology in external quality assessment schemes.

their corresponding assigned value (U-scores) was modeled by means of an adaptation of Thompson’s “characteristic function”. Quantile regression was used to investigate the percentiles of the U-scores for ...

Advanced Methods for Dose and Regimen Finding During Drug Development: Summary of the EMA/EFPIA Workshop on Dose Finding (London 4-5 December 2014).

for drug developers and regulators were presented. These methods are described in the present report: they include five advanced methods for data analysis (empirical regression models, pharmacometrics ...

Zona pellucida gene mRNA expression in human oocytes is related to oocyte maturity, zona inner layer retardance and fertilization competence.

main predictor of the fertilization capacity, next to IL-retardance and IL-thickness. Using stepwise regression analysis, IL-thickness combined with EFNB2 expression in CC and the patient’s ovarian ...

Childhood leukaemia near nuclear sites in Belgium, 2002-2008.

acute leukaemia among children aged 0-14 years living in the vicinity of the nuclear sites in Belgium. Poisson regression modelling was carried out for proximity areas of varying sizes. In addition, the ...

ATR-FTIR spectroscopy and chemometrics: An interesting tool to discriminate and characterize counterfeit medicines.

Regression Trees (CART) and Soft Independent Modelling of Class Analogy (SIMCA). First it was verified whether the mentioned techniques are capable to distinguish samples containing different active ...

Application of the characteristic function to evaluate and compare analytical variability in an external quality assessment scheme for serum ethanol.

Pierre; Wille, Sarah; Verstraete, Alain G Source: Clin Chem, Volume 61, Issue 7, p.948-54 (2015) Keywords: Blood Chemical Analysis Chromatography, Gas Ethanol Humans Laboratories Quality Control regression ...

Headspace-gas chromatographic fingerprints to discriminate and classify counterfeit medicines.

Principal Component Analysis, Projection Pursuit, Classification and Regression Trees and Soft Independent Modelling of Class Analogy. It was tested whether these techniques can distinguish genuine ...

Classification trees based on infrared spectroscopic data to discriminate between genuine and counterfeit medicines

method methods MODEL models ON Order public public health Public-health regression Sample Samples System Technique use world Abstract: Due to the extension of the internet, counterfeit drugs represent ...

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