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Anaerobic biodegradation of hydrocarbons, using a variety of terminal electron acceptors (TEAs), is increasingly being reported both in laboratory studies and in the field. Of all the petroleum hydrocarbons, benzene is considered the most problematical due ...
A highly enantioselective and diastereoselective inverse electron demand hetero-Diels-Alder reaction between a variety of alpha,beta-unsatd. aldehydes and Et vinyl ether is described. The reaction is catalyzed by a chiral tridentate chromium(III) Schiff ba ...
Like a variety of other pathogenic bacteria, Aeromonas hydrophila secretes a pore-forming toxin that contribute to its virulence. The last decade has not only increased our knowledge about the structure of this toxin, called aerolysin, but has also shed li ...
This paper provides an overview of the SWARM-BOTS project, a robotic project sponsored by the Future and Emerging Technologies program of the European Community (IST-2000-31010). The paper illustrates the robot hardware, and the results of experimental wor ...
(Z)-(3,3-dimethylbicyclo[2.2.1]hept-2-ylidene)methyllithium can be readily generated by treatment of (Z)-3-bromomethylene-2,2-dimethylbicyclo[2.2.1]heptane with Me3CLi. At -75 Deg, the organometallic intermediate is configurationally stable and reacts with ...
A new algorithm for finding straight lines in images under a bounded error model is described. The algorithm is based on a hierarchical and adaptive subdivision of the space of line parameters. It measures errors in image space and thereby guarantees that ...
N-[2-(hydroxymethyl)phenyl]pyrrole was found to be amenable to selective a-metalation. Trapping with a variety of electrophilic reagents afforded the expected products with moderate to high yields. Derivs. formed by treatment of the organometallic intermed ...
Silyl enol ethers of esters, ketones, as well as allylstannane and allylsilanes react with sulfur dioxide activated with t-BuMe2SiOSO2CF3 to give silyl sulfinates that can be reacted in the same pot with a variety of electrophiles generating the correspond ...
The presence or absence of loops in the emergent transportation networks, that are characterized by a minimum overall cost, is shown to depend on the convexity of the cost function for the local transportation of material. Our results are directly applicab ...
The Karhunen–Loève transform (KLT) is optimal for trans- form coding of a Gaussian source. This is established for all scale-invariant quantizers, generalizing previous results. A backward adaptive technique for combating the data dependence of the KLT is ...
