G-Frames in Hilbert spaces are a redundant set of operators which yield a representation for each vector in the space. In this paper we investigate the connection between g-frames, g-orthonormal bases and g-Riesz bases. We show that a family of bounded operators is a g-Bessel sequences if and only if the Gram matrix associated to its denes a bounded operator.

Chairman: A. J . Dobbs (UK); Secretary: W. J. G. M. Peijnenburg (Netherlands); Titular Members: A. Carter (UK; 1994-95); Y. Shevah (Israel; 1991-93); N. L. Wolfe (USA; 1991-93); Associate Members: P. Dolejs (Czech Republic; 1991-93); M. Ewald (France; 1991-93); V. D. Grebenjuk (Ukraine; 1991-93); H.-G. Korber (Germany; 1991-93); W. Kordel (Germany; 1994-95); J. Lintelmann (Germany; 1994-95); A....

background: survival of the semi-allograft fetus during pregnancy opens a new area for the immunological based causes of recurrent spontaneous abortion (rsa). cytotoxic t lymphocyte-associated antigen 4 (ctla4) is a negative regulator of the t-cell activation, which may modulate peripheral self-tolerance of the allogeneic fetus. the present study aimed to investigate the +49 a/g ctla4 genetic p...

Avila and Molina [1] introduced the notion of generalized weak structures which naturally generalize minimal structures, generalized topologies and weak structures and the structures α(g),π(g),σ(g) and β(g). This work is a further investigation of generalized weak structures due to Avila and Molina. Further we introduce the structures ro(g) and rc(g) and study the properties of the structures r...

OBJECTIVE To investigate the relationship among alcohol dehydrogenase-2 (ADH2) and aldehyde dehydrogenase-2 (ALDH2) genetic polymorphisms, alcohol consumption, and the susceptibility of stomach cancer in Chinese males. METHODS Three hundred and eighty-two stomach cancer patients and 382 healthy controls from Taixing and Changshu city of Jiangsu province were enrolled in this study. ADH2 and A...

background: genetic variation influences susceptibility/resistance to tuberculosis. cxcl10 is involved in t-cell migration and stimulation of natural killer cells in mycobacterium tuberculosis infection. objectives: we aimed to investigate the genetic polymorphisms in promoter of the cxcl10 gene in patients with pulmonary tuberculosis (ptb) and healthy controls, to clarify whether polymorphisms...

Pre-eclampsia (PE) is a leading cause of maternal and fetal mortality and morbidity. Structural or functional alterations of human leukocyte antigen (HLA)-G present at the maternal-fetal interface may predispose women to PE. We tested the HLA-G gene for association with PE in a case-control study of 83 PE and 240 normotensive Malay women. HLA-G was amplified in a single-tube multiplex-PCR react...

BACKGROUND Until now, no long-term studies relating serum albumin level to mortality rate in prevalent haemodialysis (HD) patients have been conducted. We aimed to examine the association between serum albumin level and mortality over a 5-year period. METHODS This study included 781 patients who received maintenance HD in a large, hospital-facilitated HD centre. Five-year medical records (200...

Published studies have evaluated associations between the MDM2 SNP309T>G polymorphism and bladder cancer susceptibility. However, these generated inconsistent results. The aim of the present investigation was to quantify the strength of association between MDM2 SNP309T>G polymorphism and bladder cancer risk by conducting a meta-analysis. We searched PubMed and Embase for related studies that ha...

Failure of apoptosis is one of the hallmarks of cancer. As an execution-phase caspase, caspase-9 plays a crucial role during apoptosis. To examine whether the Ex5+32 G>A (rs1052576) polymorphism in the CASP-9 gene alters cancer risk, we conducted a comprehensive meta-analysis of 7 case-control studies consisting of a total of 1668 cancer cases and 2294 healthy controls. All studies considered, ...