Empirical and DFT GIAO quantum-mechanical methods of 13 C chemical shifts prediction: competitors or collaborators?

Auxin and ethylene: collaborators or competitors?

The individual roles of auxin and ethylene in controlling the growth and development of young seedlings have been well studied. In recent years, these two hormones have been shown to act synergistically to control specific growth and developmental processes, such as root elongation and root hair formation, as well as antagonistically in other processes, such as lateral root formation and hypoco...

Correlation Between Experimental and DFT/GIAO Computed C NMR Chemical Shifts of Organic Compounds. Effects of Asymmetry

Abstract: The experimental C chemical shifts of five different series of organic compounds are compared with predicted C NMR chemical shifts obtained via empirically scaled GIAO shieldings. Our results indicate that the inclusion of a scaling factor allow to obtain an excellent correlation between δcalc and δexp. Although the inclusion of asymmetry improves this correlation, such enhancement wa...

Postnatal growth of gut and muscle: competitors or collaborators.

Although growth and functional maturation are essentially continuous from conception to the attainment of sexual maturity, birth and weaning are particularly critical milestones in life. Birth is associated with a change in the route of nutrient delivery to the organism and weaning requires the attainment of full locomotor function as the organism is called upon to actively seek its own food. W...

Hybrid medical leadership turns competitors into collaborators.

development of different optical methods for determination of glucose using cadmium telluride quantum dots and silver nanoparticles

a simple, rapid and low-cost scanner spectroscopy method for the glucose determination by utilizing glucose oxidase and cdte/tga quantum dots as chromoionophore has been described. the detection was based on the combination of the glucose enzymatic reaction and the quenching effect of h2o2 on the cdte quantum dots (qds) photoluminescence.in this study glucose was determined by utilizing glucose...