The intramolecular alpha-arylation of aldehydes has been accomplished using singly occupied molecular orbital (SOMO) catalysis. Selective oxidation of chiral enamines (formed by the condensation of an aldehyde and a secondary amine catalyst) leads to the formation of a 3pi-electron radical species. These chiral SOMO-activated radical cations undergo enantioselective reaction with an array of pe...

Trace semantics is extended to allow conditional commutativity among operations. Conditional commutativity is obtained by identifying the context (the set of global states) in which operations are commutative using special predicates. These will allow collapsing execution histories into equivalence classes of conditional traces. Using this approach, it is possible that the execution of two oper...

tumors following radiothyroidectomy in mice. Later, Furth et at. (8) discovered that such tumors were capable of secreting thyrotropin and isolated from them both de pendent and autonomous strains, responsive and non responsive to thyroxine. Detailed studies have been made in this laboratory (10, 11, 14—16) with 3 strains of thyrotropic tumor obtained from Dr. Furth. Growth of 1 strain, depen...

tumors following radiothyroidectomy in mice. Later, Furth et at. (8) discovered that such tumors were capable of secreting thyrotropin and isolated from them both de pendent and autonomous strains, responsive and non responsive to thyroxine. Detailed studies have been made in this laboratory (10, 11, 14—16) with 3 strains of thyrotropic tumor obtained from Dr. Furth. Growth of 1 strain, depen...

this study on the design of pid controllers for flexible single-arm robot system optimizationpso method is focused so that the coefficients of the pid controller are reduced. in this study,pid controller and pso algorithm have been described and then by using matlab, pidcontrol was simulated. then by pso algorithm, attempts to reduce the pid coefficients are givenby simulation. finally pid coef...

You know the power of words. We pass through periods dominated by this or that word it may be development, or it may be competition, or education, or purity or efficiency or even sanctity. It is the word of the time. Well just then it was the word Thrift which was out in the streets walking arm in arm with righteousness, the inseparable companion and backer up of all such national catch-words, ...