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Pregnancy and phthalates: Inconclusive conclusions

Date: Jul 15, 2014

Author: David Bradley

Multivariate regression analysis has been used to investigate associations between reported food and drink consumption among 656 women in the first trimester of pregnancy and measures of urinary phthalate metabolite concentrations based on data from a multicentre cohort study, The Infant Development and Environment Study (TIDES). The conclusions, as is common with self-reported data, are mixed and new research is suggested.

Read More thumbnail image: Pregnancy and phthalates Inconclusive conclusions

Journal Highlight: Calibration using constrained smoothing with applications to mass spectrometry data

Date: Jul 14, 2014

Author: spectroscopyNOW

A functional data approach has been applied to define the calibration curve and the limits of quantitation from mass spectrometric data, drawing on existing smoothing methods.

Read More thumbnail image: Journal Highlight Calibration using constrained smoothing with applications to mass spectrometry data

Journal Highlight: A chemometrics toolbox based on projections and latent variables

Date: Jun 16, 2014

Author: spectroscopyNOW

A personal view is given about the gradual development of projection methods — also called bilinear, latent variable, and more — and their use in chemometrics.

Read More thumbnail image: Journal Highlight A chemometrics toolbox based on projections and latent variables

Wireless: The next generation

Date: Jun 15, 2014

Author: David Bradley

The University of Bristol's Communication Systems and Networks research group has partnered with Bristol start-up Blu Wireless Technology (BWT) to develop the next generation of wireless technology, so-called 5G, which will use the millimetre wave radio range, 30 to 300 gigahertz (GHz).

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Recent Perspectives and Reviews from the Journal of Chemometrics

Date: Jun 3, 2014

Author:

Over the course of the last year, the the Journal of Chemometrics has published a series of perspective and review papers as well as a new regular column which includes a review of the origins of chemometrics and a back-to-basics primer.

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Journal Highlight: Characterization of oil complex hydrocarbon mixtures by HSQC-NMR spectroscopy and PCA

Date: May 19, 2014

Author: spectroscopyNOW

The degree of changes in complex mixtures from crude oil and from oil residues in soils was determined by using heteronuclear single quantum coherence–nuclear magnetic resonance (HSQC-NMR) spectroscopy.

Read More thumbnail image: Journal Highlight Characterization of oil complex hydrocarbon mixtures by HSQC-NMR spectroscopy and PCA

Crayfish test: Polyaromatic hydrocarbons assessed

Date: May 15, 2014

Author: David Bradley

A predictive model for the determination of average polycyclic aromatic hydrocarbon (PAH) concentrations in the freely dissolved phase and those present in resident aquatic organisms, such as crayfish, is being developed by US researchers.

Read More thumbnail image: Crayfish test Polyaromatic hydrocarbons assessed

Electronic prescription: Information improvements

Date: Apr 15, 2014

Author: David Bradley

Safer prescribing of medications could be possible thanks to a better approach for designing medication alerts that are presented in electronic medical records. The new approach, described online in the Journal of the American Medical Informatics Association also increased efficiency and reduced workload for health care providers.

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Journal Highlight: Chemometric application for thermal behavior of blends of bamboo with solid fossil fuel

Date: Apr 14, 2014

Author: spectroscopyNOW

The suitabilities as fuels of blends of bamboo biomass with low-rank high-sulfur coal were assessed by thermogravimetric analysis supported by chemometric analysis, correlation and principal component analysis.

Read More thumbnail image: Journal Highlight Chemometric application for thermal behavior of blends of bamboo with solid fossil fuel

Journal Highlight: Decomposition of in vivo spatially offset Raman spectroscopy data using multivariate analysis techniques

Date: Mar 17, 2014

Author: spectroscopyNOW

Spatially offset Raman spectroscopy data were processed with three different multivariate techniques and compared for their performance with a spectrally challenging plastic model system and the analysis of human bone transcutaneously in vivo.

Read More thumbnail image: Journal Highlight Decomposition of in vivo spatially offset Raman spectroscopy data using multivariate analysis techniques
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