The concept of g-frame is a natural extension the frame. This article mainly discusses relationship between some special bounded linear operators and g-frames, characterizes properties g-frames. In addition, according to operator spectrum theory, eigenvalues are introduced into new expression best frame boundary given.

the theory of c-frames and c-bessel mappings are the generalizationsof the theory of frames and bessel sequences. in this paper, weobtain several equivalent conditions for dual of c-bessel mappings.we show that for a c-bessel mapping $f$, a retrievalformula with respect to a c-bessel mapping $g$ is satisfied if andonly if $g$ is sum of the canonical dual of $f$ with a c-besselmapping which  wea...

To examine the effects of drinking on liver injury in anti-hepatitis C virus (HCV)-positive subjects, 3,062 HBs-negative subjects were divided into 9 groups according to anti-HCV-titer (second-generation passive hemagglutination) and alcohol intake. Serum alanine aminotransferase (ALT) or aspartate aminotransferase (AST) levels were analyzed by multiple-comparison test. In 2,826 anti-HCV-negati...

The theory of frames is fundamental to timefrequency (TF or time-scale signal expansions like Gabor ysis of frames via two “TF frame representations” called the Weyl symbol and Wigner distribution of a frame. The T F analysis shows how a frame’s properties depend on the signal’s T F location and on certain frame parameters. 1 I N T R O D U C T I O N Linear time-frequency (TF) or time-scale sign...

BACKGROUND/AIMS To examine if serum fibrosis biomarkers could accurately identify the stage of liver disease amongst hepatitis C (HCV) and HIV co-infected patients. METHODS One hundred and thirty seven HIV/HCV co-infected persons were randomly selected from the Johns Hopkins HIV Clinic cohort. Ninety five had complete testing for fibrosis markers in sera collected at the time of liver biopsy....

Background: Fish have been at high risk of atrazine toxicity. Comparative atrazine toxicity on the tissues of Clarias gariepinus is scanty. Therefore, acute and chronic effects of atrazine on some biochemical parameters in Clarias gariepinus were investigated in this study. Methods: Atrazine toxicity was determined by assessing the responses of glucose, protein, alanine aminotransferase (ALT...

Background & Aim: Marshmallow (Althaea officinalis) is one of the most popular medicinal plants used in traditional medicine with antibacterial and antioxidant properties. This study was conducted to evaluate the effects of marshmallow extract (Althaea officinalis L.) administration on blood cells and biochemical parameters of carp liver. Experimental: 150 carp (weighing 37.6...

The study was designed to recognize the effects of flavonoids isolated from a Brassica oleracea plant minimize damage caused by diabetes induced alloxan in histological structure liver and levels (AST,ALT) congeneric.
 Fifteen female albino rats were used divided into three groups equal: First group: control animals given water food, Second treated alloxan, Third treatmed flavonol peritone...