Macrocyclization of omega-Isocyanoaldehydes and Towards the Total Synthesis of Jamaicensamide A
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In Al0.3Ga0.7As/GaAs quantum wells bordered by ultrathin (one or two monolayers) AlAs layers, the AlAs layer has been shown to provide a well for electrons at high pressure [Phys. Rev. B 45, 11 846 (1992)]. In this work, the same type of structures but gro ...
Cyclisation reactions on pentapeptides containing the turn promoting residues Gly and Pro are investigated. Although the cyclisation reaction is fast, solvent-dependent mixtures of cyclic penta- and decapeptides are observed. NMR studies suggest a strong d ...
We studied the possible involvement of corticosteroids in the establishment and long-term expression of contextual fear conditioning and questioned whether a corticosteroid action might be dependent upon stimulus intensity at training. Experiments included ...
We illustrate the propagation of light in a new type of coupling mask for lensless optical lithography. Our investigation shows how the different elements comprising such masks contribute to the definition of an optical path that allows the exposure of fea ...
Putative intersubunit electrostatic interactions between charged amino acids on the surfaces of the dimer interfaces of leucine zippers (g-e' ion pairs) have been implicated as determinants of dimerization specificity. To evaluate the importance of these i ...
The light-induced degrdn. of Tinopal DMS-X, a stilbene type fluorescence whitening agent (FWA) which is quite resistant to biodegrdn., is described. This substance has been chosen for the study of the titania-induced degrdn. of polycyclic stilbenes since i ...
An algorithm for connection admission control (CAC) in the case where connections are of the variable bit rate (VBR) type and the trunk carrying the multiplexed VBR connections is itself a VBR connection. ...
Annealing in excess arsenic vapor at 650-degrees-C introduces thermal conversion of n-type Si-doped GaAs samples (n = 1.3 X 10(18) cm-3) into p type. The observations are made by current-voltage and electron-beam induced current measurements. The donor con ...
A classification of models for animating synthetic actors is proposed. The classification depends on the motion control method used (geometric, physical, or behavioral) and the type of actor interaction (single actor, actor-actor, actor-environment, and an ...
The author discusses a newly introduced local area network concept that provides a very interesting alternative to the bus and ring networks. He proposes a new type of node that can be integrated into a meshed configuration. This node is composed of severa ...