A aberration, 949 aberrations, 947 absolute pressure, 368, 388 absolute zero, 431, 461 ac current, 711, 722 ac voltage, 711, 722 acceleration, 43, 75, 126, 153 acceleration due to gravity, 62, 75 accommodation, 931, 949 accuracy, 25, 31 acoustic impedance , 615, 620 active transport, 419, 419 activity, 1131, 1140 adaptive optics, 947, 949 adhesive forces, 377, 388 adiabatic, 515 adiabatic proce...

Vol. XLIV (November 2007), 579–594 579 © 2007, American Marketing Association ISSN: 0022-2437 (print), 1547-7193 (electronic) *Rajkumar Venkatesan is Associate Professor of Business Administration, Darden Graduate School of Business, University of Virginia, Charlottesville (e-mail: [email protected]). V. Kumar (VK) is ING Chair Professor in Marketing and Executive Director, ING Ce...

We use fiscal data on 2,468 oil extraction agreements in 38 countries to study tax contracts between resource-rich countries and independent oil companies. We analyze why expropriations occur and what determines the degree of oil price exposure of host countries. With asymmetric information about a country’s expropriation cost even optimal contracts feature expropriations. Near-linearity in the...

C3G is a guanine nucleotide exchange factor for Rap1 and is activated by the expression of Crk adaptor proteins. We found that expression of CrkI in COS cells induced significant tyrosine phosphorylation of C3G. To understand the mechanism by which C3G is phosphorylated and activated by Crk, we constructed a series of deletion mutants. Deletion of the amino terminus of C3G to amino acid 61 did ...

About half of the known miRNA genes are located within protein-coding host genes, and are thus subject to co-transcription. Accumulating data indicate that this coupling may be an intrinsic mechanism to directly regulate the host gene's expression, constituting a negative feedback loop. Inevitably, the cell requires a yet largely unknown repertoire of methods to regulate this control mechanism....