This paper deals with the interference rejection capability of circular antenna arrays, as base stations of wireless communications systems. In general, this figure of merit depends strongly on the array configuration and is a function of the direction of arrival of the desired signal, the number of antenna elements, and their spacing. The main goal and contribution of this paper is to provide ...

abstract background: keratoconus is a bilateral corneal disease, which one way to cure it is to transplant. the transplantation may be rejected by recipient's immune system, which leads to failure of the graft. this study aimed to analysis the factors affecting bilateral corneal graft rejection based on copula function. methods: a sample of bilateral graft rejection times was assessed. since co...

A 2.5V high precision BiCMOS bandgap reference with supply voltage range of 6V to 18V was proposed and realized. It could be applied to lots of Power Management ICs (Intergrated Circuits) due the high voltage. By introducing a preregulated current source, the PSRR (Power Supply Rejection Ratio) of 103dB at low frequency and the line regulation of 26.7μV/V was achieved under 15V supply voltage a...

background acute rejection remains a major problem in renal transplantation and represents one of the most important causes of chronic allograft dysfunction and late graft loss. daclizumab is a genetically engineered human igg1 monoclonal antibody that binds specifically to the α chain of the interleukin-2 receptor, and may thus reduce the risk of rejection after renal transplantation. objectiv...

Abstract Early diagnosis and treatment of immune rejection is critical for face transplants (vascularized composite allografts, VCA). VCA diagnosed by histologic evaluation skin biopsies, yet repeated biopsies are a considerable aesthetic problem. Sentinel flaps, fasciocutaneous radial forearm have been used remote-site monitoring, but the concordance between tissues during remains unclear. Wit...

background: kidney transplantation is a preferred treatment for many patients with end-stage renal disease (esrd) and is far more profi table than hemodialysis. analyzing renal transplantation data can help to evaluate the eff ectiveness of transplantation interventions. the aim of this study was to determine the organ survival rate after kidney transplantation during a period of 10 years (marc...

This research aims to evaluate the perceptions of teacher acceptance-rejection preschool children aged 6 years, developed by Rohner and Giotsa (2012) Early Childhood Parental Acceptance Rejection Scale: Child Short Form (ECPARQ), Preschool Teacher To adapt Child's as Years Old (PTARQ) into Turkish carry out validity reliability studies. In this study, a descriptive survey model was preferred. T...

PURPOSE The aim of this study was to develop a robust post-processing workflow for motion-corrupted datasets in diffusion kurtosis imaging (DKI). MATERIALS AND METHODS The proposed workflow consisted of brain extraction, rigid registration, distortion correction, artifacts rejection, spatial smoothing and tensor estimation. Rigid registration was utilized to correct misalignments. Motion arti...

background: monitoring of phenotypic characteristics of t-lymphocytes in peripheral blood is commonly performed to give the clinical parameters in the management of kidney transplant recipients.   objective: to predict rejection in renal transplantation by immune parameters. methods: 16 non-diabetic kidney transplant candidates (4 females and 12 males, age = 20-65 yr, first time transplant) wer...