[formula: see text] Conversion of the inexpensive L-arabinose 1 into the ethylthio ortho ester 7 followed by generation of the dialkoxyalkyl radical III produces the desired 2-deoxy-L-ribose triester 4 in excellent overall yield. It has been shown that the similar dialkoxyalkyl radical IV is not an intermediate in the 1,2-acyloxy shift of anomeric radical I.

BACKGROUND Plethysmographic measurement of haemoglobin concentration ([Formula: see text]), pleth variability index (PVI), and perfusion index (PI) with the Radical-7 apparatus is growing in popularity. Previous studies have indicated that [Formula: see text] has poor precision, particularly when PI is low. We wanted to study the effects of a sympathetic block on these measurements. METHODS T...

Entrepreneurial action is increasingly associated with innovation ecosystems because no firm alone can render the complex and interdependent services demanded in markets. Moreover, entrepreneurial firms are increasingly instigators of innovation ecosystems, rather than merely participants. However, particularly in the pursuit of radical innovation, a question arises as to how an entrepreneurial...

As interest in the study of antioxidant intake from foods and other agricultural products increases, methods for performing radical scavenging activity assays based on the electron paramagnetic resonance spectroscopic method, in which there is no interference from the sample color and turbidity, are required. In this study, we have developed a rapid and simple electron paramagnetic resonance ba...

The gas-phase infrared absorption spectra of neutral benzyl and tropyl, isomers of formula C7H7, have been measured in the 400-1800 cm-1 spectral region. In addition, a quantum chemical calculation has been performed to model the infrared spectra. For the benzyl radical, the theory shows satisfactory overlap with the experiment, although vibrations involving the CH2 group might be anharmonic. T...

The evolution of libraries through three stages –modernization, automation and digitizationis analysed. A formula is presented to evaluate the importance of libraries to our society, and it is applied both retrospectively and futuristically, extrapolating a 2030 scenario. The conclusion is that if the current generation of librarians does not introduce radical changes in the role of libraries, ...

Let [Formula: see text] be a radical square zero algebra of Dynkin quiver and let the Auslander text]. Then number tilting right text]-modules is if type for Otherwise, either or