This thesis consists of four papers. In the first paper we present methods and explicit formulas for describing simple weight modules over twisted generalized Weyl algebras. Under certain conditions we obtain a classification of a class of locally finite simple weight modules from simple modules over tensor products of noncommutative tori. As an application we describe simple weight modules ove...

In this paper we complete the classification of the primitive permutation groups of degree less than 1000 by determining the irreducible subgroups of GL(n, p) for p prime and pn < 1000. We also enumerate the maximal subgroups of GL(8, 2), GL(4, 5) and GL(6, 3). © 2003 Elsevier Science Ltd. All rights reserved. MSC: 20B10; 20B15; 20H30

We propose a gradient-limited affine projection algorithm (GL-APA), which can achieve fast and double-talk-robust convergence in acoustic echo cancellation. GL-APA is derived from the M-estimationbased nonlinear cost function extended for evaluating multiple error signals dealt with in the affine projection algorithm (APA). By considering the nonlinearity of the gradient, we carefully formulate...

Lean system consists of best common sense practices for optimum resource utilization. Green manufacturing focuses on practices which reduce negative impacts on the environment. Global market conditions forced organizations to adopt Green-Lean (GL) concepts in the last few years. This paper focuses on the significant lean practices impacting the environment. The lean practices act as driver for ...

Let Sn be the symmetric group on n letters, k be a field of characteristic p and D be the irreducible kSn-module corresponding to a p-regular partition λ of n, as in [12]. By tensoring D with the 1-dimensional sign representation we obtain another irreducible kSn-module. If p = 0, D λ ⊗ sgn ∼= D ′ , where λ′ is the conjugate of the partition λ, and if p = 2, we obviously have that D ⊗ sgn ∼= D....

We characterize discrete groups Γ ⊂ GL(n,R) which act properly discontinuously on the homogeneous space GL(m,R)\GL(n,R).

BACKGROUND Studies on obesity and glycemic index (GI) or glycemic load (GL) have had inconsistent results, perhaps in part because of underreporting or to heterogeneous dietary patterns across food cultures. OBJECTIVES We examined associations between body mass index (BMI) and GI or GL in a Mediterranean population, accounting for underreporting. We also constructed dietary factors related to...

Antibodies readily neutralize acute, epidemic viruses, but are less effective against more indolent pathogens such as herpesviruses. Murid herpesvirus 4 (MuHV-4) provides an accessible model for tracking the fate of antibody-exposed gammaherpesvirus virions. Glycoprotein L (gL) plays a central role in MuHV-4 entry: it allows gH to bind heparan sulfate and regulates fusion-associated conformatio...

Galiellalactone (GL) is a fungal metabolite that presents antitumor activities on prostate cancer in vitro and in vivo. In this study we show that GL induced cell cycle arrest in G2/M phase, caspase-dependent apoptosis and also affected the microtubule organization and migration ability in DU145 cells. GL did not induce double strand DNA break but activated the ATR and ATM-mediated DNA damage r...