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625 results on '"Greenberg, William A."'

104. A Capital Markets View of Mortgage Servicing Rights

Author

ALDRICH, SIMON P.B., GREENBERG, WILLIAM R., and PAYNER, BROOK S.

Subjects
Mortgage-backed securities -- Economic aspects, Banking, finance and accounting industries, Business
Abstract

The market for mortgage servicing rights has undergone a significant transformation as the trend toward consolidation in the industry continues. There are now nine servicers with over $100 billion in [...]

Published
2001

122. An enzyme library approach to biocatalysis: Development of nitrilases for enantioselective production of carboxylic acid derivatives

Author

DeSantis, Grace, Hanson, Sarah R., Robertson, Dan E., Zhu, Zuolin, Farwall, Bob, Burk, Mark J., Greenberg, William E., Nicholson, Lawrence W., Wong, Kelvin, Rand, Cynthia L., Chaplin, Jenny, and Weiner, David P.

Subjects
Catalysis -- Methods, Carboxylic acids -- Chemical properties, Chemistry
Abstract

The discovery of a large and diverse set of nitrilases and the utility of this nitrilase library for identifying enzymes that catalyze efficient enantioselective production of valuable hydroxy carboxylic acid derivatives is reported. It is revealed that nitrilases that furnish mandelic and aryllactic acid derivatives as well as either enatiomer of 4-cyano-3-hydroxybutyric acid in high yield and enantiomeric excess.

Published
2002

124. Aldolase Enzymes for Complex Synthesis

Author

Greenberg, William A., primary, Wong, Chi-Huey, additional, Lemaire, Marielle, additional, Blidi, Lahssen El, additional, Castillo, Jos A., additional, Parella, Teodor, additional, Inoue, Tomoyuki, additional, Sprenger, Georg A., additional, Joglar, Jess, additional, Claps, Pere, additional, Charmantray, Franck, additional, Dellis, Philippe, additional, Hlaine, Virgil, additional, Samreth, Soth, additional, and Hecquet, Laurence, additional

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132. Extensionality, Proper Classes, and Quantum Non-Individuality.

Author

Greenberg, William J.

Subjects
*SET theory, *LIAR paradox, *QUANTUM theory
Abstract

In this paper I address two questions: (1) What distinguishes proper classes from sets? (2) Are proper classes and quantum particles individuals? Against the familiar response to (1) that proper classes are too big to be sets, I propose that it is not a difference in size that distinguishes such collections but a difference in individuation. The linchpin of my proposal and centerpiece of an NBG-like fragment of class and set theory ("NBG": von Neumann-Bernays-Gödel), is an Axiom of Restricted Extensionality according to which sets are individuated by their members but proper classes are not. This setting (I call it NBG-) I show to be equi-consistent with its NBG counterpart. I answer (2) by exhibiting a parallelism in NBG-between proper classes and quantum particles, the former unindividuated by their members and the latter unindividuated by their relational properties. Since both violate the (weak) principle of the identity of indiscernibles as well as the principle of reflexive identity, in NBG-neither proper classes nor quantum particles are individuals. [ABSTRACT FROM AUTHOR]

Published
2015

133. Cycloaddition of 2-thiazolines and acyl ketenes under acidic conditions results in bicyclic 1,3-oxazinones and not 6-acylpenams as earlier reported

Author

Pemberton, Nils, Emtenäs, Hans, Boström, Dan, Domaille, Peter J, Greenberg, William A, Levin, Michael D, Zhu, Zuolin, Almqvist, Fredrik, Pemberton, Nils, Emtenäs, Hans, Boström, Dan, Domaille, Peter J, Greenberg, William A, Levin, Michael D, Zhu, Zuolin, and Almqvist, Fredrik

Abstract

Optically active 2-thiazolines 4 were previously reported to react with acyl Meldrum's acid derivatives 5 under acidic conditions (HCl (g) in benzene) to stereoselectively give 6-acylpenams 1. Recently we have discovered that the structure elucidation of these compounds was incorrect. Thus, we report new data showing that instead of acyl -lactams, the optically active isomers 3R,9R-1,3-oxazinones 3a-g are obtained stereoselectively in 38-93% yields.

Published
2005
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139. General Crook and Counterinsurgency Warfare

Author

ARMY COMMAND AND GENERAL STAFF COLL FORT LEAVENWORTH KS, Greenberg, William L., ARMY COMMAND AND GENERAL STAFF COLL FORT LEAVENWORTH KS, and Greenberg, William L.

Abstract

This thesis investigates the operational and tactical procedures in counterinsurgency warfare developed by General George Crook while commanding U.S. Army forces in southwest and the northern plains. This work includes a brief introduction of General Crook's career before and during the Civil War. The study examines the capabilities of the U.S. Army and its Apache and Sioux opponents during Indian campaigns, which Crook participated in. Inherent in the study is an in-depth examination of Crook s campaigns against the Apaches in the 1872-75, 1882-86, and against the Sioux and Cheyenne in 1876-77. This study concludes that General Crook, through trial and error, developed a distinct brand of operational and tactical procedures to conduct effective counterinsurgency warfare. Though lacking a coherent strategic national policy concerning the Indians, Crook was capable of successfully developing and executing a coherent counterinsurgency policy at the operational and tactical levels. This comprehensive program produced victories against his enemies in the field and an integrated acculturation policy for the Indians who resided on the reservation. Crook's use of Apache scouts and the pack mule train revolutionized the Army's ability to track down the insurgents and defeat them. His use of population controls coupled with economic development provided his Indian opponents an alternative way of life for their societies.

Published
2001

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