نتایج جستجو برای: polyoxometalates poms

تعداد نتایج: 1237  

Journal: :Hospital pediatrics 2015
Laura Jacobsen Amee Patel Meghan Fox Sara Miller Kathleen Bradford Ravi Jhaveri

OBJECTIVE Oral medications are commonly used to treat acute and chronic conditions, but formal evaluation of a child's pill-swallowing ability rarely occurs. In this pilot study, the Pediatric Oral Medication Screener (POMS) was used to physically assess a child's pill swallowing ability and identify children who would benefit from a targeted intervention. METHODS We identified children 3 to ...

2018
Małgorzata Loga Anna Wierzchołowska-Dziedzic Andrzej Martyszunis

This article addresses the issue of estimating probability of misclassification (PoM), when assessing the status of a water body (w.b.). The standard deviation of a monitoring data is considered a good measure of the uncertainty of the assessed w.b. status. However, when PoM is to be estimated from the biological data, a problem caused by too few monitoring data emerges. The problem is overcome...

2017

Submit Manuscript | http://medcraveonline.com the heteroatom and M, the addenda atom. Particularly, POMs of Keggin-symmetry are recognized to be used in devices of energy storage such as super capacitors and Li-ion batteries, catalysis and renewable energy applications [2]. POMs present in such systems are susceptible to transfer electronic charge and to anchor at organic or inorganic substrate...

Journal: :ChemSusChem 2017
Eric Anderson Anthony Crisci Karthick Murugappan Yuriy Román-Leshkov

Reductive catalytic fractionation of biomass has recently emerged as a powerful lignin extraction and depolymerization method to produce monomeric aromatic oxygenates in high yields. Here, bifunctional molybdenum-based polyoxometalates supported on titania (POM/TiO2 ) are shown to promote tandem hydrodeoxygenation (HDO) and alkylation reactions, converting lignin-derived oxygenated aromatics in...

2010
Mikhail S. Saraiva José A. F. Gamelas António P. Mendes de Sousa Bruno M. Reis José L. Amaral Paulo J. Ferreira

A new approach for the chemical modification of the surface of paper based on the application of colloidal mixtures containing cationic starch and polyoxometalates on uncoated base paper is presented. Polyoxometalates with the Keggin-type structure and physical properties similar to those presented by coating pigments, namely H3PW12O40·23H2O, H4SiW12O40·24H2O, and K7PW11O39·9H2O, have been used...

Journal: :Chemical communications 2010
Jean-Daniel Compain Philippe Deniard Rémi Dessapt Anne Dolbecq Olivier Oms Francis Sécheresse Jérôme Marrot Pierre Mialane

The presence of alkylammonium groups covalently grafted on bisphosphonato ligands induces photochromic properties to ligand-coordinated polyoxomolybdate systems. Such intrinsically photoactive polyanions can be used for the preparation of materials combining photochromic polyoxometalates and functional countercations.

Journal: :Physical chemistry chemical physics : PCCP 2013
Vincent Goovaerts Karen Stroobants Gregory Absillis Tatjana N Parac-Vogt

The interaction between the plenary Keggin H3PW12O40, lacunary Keggin K7PW11O39 and the Eu(III)-substituted Keggin K4EuPW11O39 (Eu-Keggin) type polyoxometalates (POMs), and the proteins human and bovine serum albumin (HSA and BSA) was studied using steady state and time-resolved Eu(III) luminescence and tryptophan (Trp) fluorescence spectroscopy. The excitation spectrum of the Eu-Keggin POM is ...

Journal: :Chemical communications 2013
Yanling Zhai Chengzhou Zhu Jiangtao Ren Erkang Wang Shaojun Dong

We report a novel design, based on a combination of lanthanide-doped upconversion nanoparticles and polyoxometalates, for electrically controlled fluorescence switches and sensitive detection of antioxidants in aqueous solution.

2015
Amelia Scott Julia J. Rucklidge Roger T. Mulder Jelte M. Wicherts

OBJECTIVE To address the bias occurring in the medical literature associated with selective outcome reporting, in 2005, the International Committee of Medical Journal Editors (ICMJE) introduced mandatory trial registration guidelines and member journals required prospective registration of trials prior to patient enrolment as a condition of publication. No research has examined whether these gu...

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