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Article
Synthesis, characterization and photocatalytic behavior of TiO2–SiO2 mesoporous composites in hydrogen generation from water splitting
TiO2–SiO2 mesoporous composite photocatalysts with different proportions (in wt%) of TiO2 and SiO2 (TiO2–SiO2 = 20:80, 40:60, 60:40, 80:20 and 100:0) were prepared by loading TiO2 on as-synthesized Si–MCM-41 usin...
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Article
Role of do**-induced photochemical and microstructural properties in the photocatalytic activity of InVO4 for splitting of water
We report in this paper on microstructural, optical and photocatalytic properties of single-phase indium orthovanadates, as a function of do** at lattice sites. The UV–visible spectra of these samples exhibi...
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Article
Synthesis of N-methylaniline by Aniline Alkylation with Methanol over Sn-MFI Molecular Sieve
Sn-MFI molecular sieves (Tin silicalite-1) with SiO2/SnO2 molar ratio of 50–150 were synthesized and characterized. Elemental analysis, XRD and DRUV–vis confirmed that prepared samples were of MFI zeolite structu...
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Article
Vitamin B12 and homocysteine status in asymptomatic Indian toddlers
Low serum vitamin B12 (V B12) and hyperhomocysteinemia have been reported in asymptomatic Asian Indian men. We studied the prevalence of V B12 deficiency and hyperhomocysteinemia in 51 asymptomatic toddlers, from...
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Article
Open AccessVitamin B12 and folate concentrations during pregnancy and insulin resistance in the offspring: the Pune Maternal Nutrition Study
Raised maternal plasma total homocysteine (tHcy) concentrations predict small size at birth, which is a risk factor for type 2 diabetes mellitus. We studied the association between maternal vitamin B12, folate an...
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Article
Heterogenized Molybdovanadophosphoric Acid on Amine-Functionalized SBA-15 for Selective Oxidation of Alkenes
Mono-vanadium substituted molybdovanadophosphoric acid has been immobilized on amine-functionalized SBA-15 and characterized by different techniques. Small angle X-ray scattering (SAXS) analysis and SEM techni...
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Article
Redox factor-1: an extra-nuclear role in the regulation of endothelial oxidative stress and apoptosis
The rac1 GTPase promotes oxidative stress through reactive oxygen species (ROS) production, whereas the DNA repair enzyme and transcriptional regulator redox factor-1 (ref-1) protects against cell death due to...
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Article
Denaturation behavior of phaseolin in urea, guanidine hydrochloride, and sodium dodecyl sulfate solutions
The denaturation behavior of phaseolin in urea, guanidine hydrochloride, and sodium dodecyl sulfate solutions was examined by monitoring changes in the intrinsic fluorescence of tryptophan and tyrosyl residues...
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Article
Water uptake during cooking of dry beans (Phaseolus vulgaris L.)
Water uptake during cooking of ten dry bean (Phaseolus vulgaris L.) varieties was investigated. Water uptake during early stages of cooking was characteristic of the variety. Although the optimal cooking times va...
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Article
Interrelationships between certain physical and chemical properties of dry bean (Phaseolus vulgaris L.)
The interrelationships among certain physical and chemical properties of ten cultivars of dry beans (Phaseolus vulgaris L.) were investigated. The length/breadth ratio was similar (1.51–1.65) except for kidney be...
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Article
X-ray fluorescence method for the determination of rare earths, uranium and thorium in allanites
Das beschriebene Verfahren eignet sich zur Bestimmung von La, Ce, Pr, Nd, Sm Gd, Th und U in Allaniten. Die Bestimmungsgrenzen für die einzelnen Elemente betragen: La 0,5–10%; Ce 2–20%; Pr 0,1–2%; Nd 0,5–10%; ...
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Article
X-ray fluorescence analysis of high-purity dysprosium oxide for Y, Eu, Gd, Tb, Ho and Er
Die Proben werden in Oxalat übergeführt und im Verhältnis 2∶1 mit Borsäure vermischt. Diese Mischung wird als zweite Schicht auf eine Borsäuretablette gepreßt. Die Auswahl der geeigneten Analysenlinien und die...
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Article
X-ray fluorescence analysis of Y, Ce, Pr, Nd, Eu and Gd in high purity samarium oxide
Zur röntgenanalytischen Bestimmung von Spuren Seltener Erden in hochreinem Samariumoxid wird die Probe in die Oxalatform übergeführt, mit Borsäure im Verhältnis 3∶1 gemischt und zu je 800 mg in Doppelschichtta...
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Article
An XRF method for the determination of common rare earth impurities in high purity yttrium oxide
Ein Verfahren zur röntgenfluorescenzanalytischen Bestimmung von Eu, Gd, Tb, Dy, Ho, Er und Yb in Yttriumoxid wurde ausgearbeitet. Die Probe wird zu Yttriumoxalat umgesetzt und in Form von Preßtabletten der RFA...
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Article
X-Ray fluorescence determination of Sm, Eu, Tb, Dy, Ho, Yb and Y in high purity gadolinium oxide
Bei dem vorgeschlagenen Verfahren werden die Proben in die Oxalatform übergeführt und mit Borsäure im Verhältnis 3∶1 gemischt. Die Mischung wird zu einer Doppelschicht-Tablette gepreßt. Die Auswahl der geeigne...
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Article
Determination of calcium in uranium by X-ray fluorescence
Ein Verfahren für den Bereich von 20–500 ppm wird beschrieben. Die U3O8-Proben werden mit BorsÄure als Bindemittel vermischt zu Doppelschicht-Tabletten gepre\t, die mit Hilfe eines halbautomatischen Philips PW 12...