However, direct measurement of the oxygen fugacity of spinels from peridotites of deep origin indicate that the oxygen fugacity of these rocks is low, corresponding to an iron-w眉stite buffer. The relative abundance of the carbon isotopes C12 and C13 varies widely in natural gases. Methane ...
The statistical significance was determined without correcting for multiple comparisons in triplicates and the y value in the volcano plot is minus one times the logarithm of the p value. The proteins with high abundance and competition by the parent compound Sal A are highlighted in red (see ...
Genome mining has revealed the diversity, abundance and complex nature of the secondary metabolite potential of the Subsection V cyanobacteria. This bioinformatic study has identified novel biosynthetic enzymes which have not been associated with gene clusters of known classes of natural products, suggestin...
there are only a few reports of temperature-based RCSA measurements for biomolecules23,24. Since1H has the highest gyromagnetic ratio and almost 100% natural abundance,1H RCSAs should be measurable even for minute quantities of the compound to determine its configuration. Yet,1H RCSAs have not ...
[15]. It’s percent composition varies from specie-to-specie due to the variation in abundance of the enzyme responsible for its synthesis [15]. It is a 3β-hydroxy-urs-12-en-28-oic acid with molecular formula C30H48O3, molecular weight 456.7 g/mol, and melting point of 283–285°C...
Solid-state NMR investigation of pharmaceutical drugs faces two main drawbacks: the low sensitivity of NMR experiments involving nuclei such as 13C and 15N at natural isotopic abundance (NA), and long 1H spin-lattice relaxation times (T1). As a consequence, long experimental times and extensive ...
And how they got into the sea is one of the most fascinating stories of 【C3】___ . Most authorities believe that 60 million years ago ancestors of modern whales were four-legged, wolf-size animals living on the sea shores, 【C4】___ an abundance of fish and shrimp tempted them to ...
Jolivet, C., Guillet, B., Karroum, M., Andreux, F., Bernoux, M., Arrouays, D., 2001. Labelling the origin of soil organic matter by lignin phenols and C-13 natural abundance. Comptes Rendus de l'Acade´ mie des Sciences-Sciences de la terre et des Plane` tes 333, 651-...
interest, the present work provides baseline data for a systematic and science-based macroalgal monitoring program in Nha Trang Bay, Viet Nam, to keep track of potentially interesting taxa and to identify driving environmental factors which may also naturally influence biodiversity and species abundance...
Given their principal role in biocorrosion, it remains a crucial task to develop strategies to reduce the abundance of SRBs. Conventional approaches include the use of biocides and antibiotics, which can impose health, safety, and environmental concerns. This review examines an alternative approach to...