Product line design

We characterize the product line choice and pricing of a monopolist from the upper envelope of net marginal revenue curves to the individual product demand functions. The equilibrium product line constitutes those varieties yielding the highest upper envelope. In a generalized vertical differentiation framework, the equilibrium line is exactly the same as the first-best socially optimal line. These upper envelope and first-best optimal line findings extend to symmetric Cournot oligopoly

Higher-order mesoscopic fluctuations in quantum wires: Conductance and current cumulants

We study conductance cumulants $>$ and current cumulants $C_j$ related to heat and electrical transport in coherent mesoscopic quantum wires near the diffusive regime. We consider the asymptotic behavior in the limit where the number of channels and the length of the wire in the units of the mean free path are large but the bare conductance is fixed. A recursion equation unifying the descriptions of the standard and Bogoliubov--de Gennes (BdG) symmetry classes is presented. We give values and come up with a novel scaling form for the higher-order conductance cumulants. In the BdG wires, in the presence of time-reversal symmetry, for the cumulants higher than the second it is found that there may be only contributions which depend nonanalytically on the wire length. This indicates that diagrammatic or semiclassical pictures do not adequately describe higher-order spectral correlations. Moreover, we obtain the weak-localization corrections to $C_j$ with $j\le 10$.Comment: 7 page

Entanglement via Barut-Girardello coherent state for suq(1,1)su_{q}(1, 1) quantum algebra: bipartite composite system

Using noncocommutative coproduct properties of the quantum algebras, we introduce and obtain, in a bipartite composite system, the Barut-Girardello coherent state for the q-deformed $su_{q}(1,1)$ algebra. The quantum coproduct structure ensures this normalizable coherent state to be entangled. The entanglement disappears in the classical $q \to 1$ limit, giving rise to a factorizable state.Comment: 12 page

KvLQT1 and KCNE1 K+ channel gene polymorphisms in long QT syndrome

Long QT Syndrome (LQTS), a disorder of the cardiac repolarization process with prolongation of the QT interval (QTc ≥0.46 seconds), is an ion-channelopathy. Mutations in either KCNQ1 or KCNE1 genes are susceptible to LQTS. Hence, screening of KCNQ1 and KCNE1 genes is taken up to evaluate the genetic correlation of these genes in Long QT patients of Indian origin. A total of 33 Long QT Syndrome patients and 100 healthy subjects were enrolled for the present study. PCR-SSCP protocol was utilised for screening of KCNQ1 and KCNE1 genes followed by In-silico and statistical analysis. The clinical profile of the Long QT syndrome patients in our study revealed a higher percentage of females with the mean age also being higher in females when compared to males. The two variations (S546S and IVS13+36A>G) in KCNQ1 and the S38G polymorphism in KCNE1 gene were identified and their association with Long QT syndrome is being reported for the first time in Indian population. S546S is located in the KCNQ1 C terminus close to this domain and IVS13+36A>G is located in the intronic region in close proximity to the coding region for C-terminal domain; these may therefore affect the functional protein through non-assembly. S38G leads to a substitution of serine to glycine at 38th amino acid position (S38G) in the transmembrane domain of KCNE1. Our study reports compound heterozygosity/genetic compound ofS546S and IVS13+36A>G of KCNQ1 gene. Haplotype frequencies and linkage disequilibrium analysis revealed a significant association between the three biomarkers. Compound heterozygosity of the polymorphisms influence downstream signalling and KCNQ1-KCNE1 interactions

EBSCO Library of Congress Classification Report 2012

This report lists all periodicals subscribed to in 2012 through EBSCO Subscription Services by the University Libraries, University of Rhode Island. Information provided includes title, ISSN, Library of Congress Classification number and name, and account number (for URI, Pell, or CCE). The list is sorted by LC Classification to better show the journals that support each discipline/subject area. Not included here are titles available through online journal packages and reference databases, which now comprise the majority of the Libraries\u27 subscriptions. The journals listed here are those to which the Libraries subscribe to individually, title-by-title, through EBSCO