OBJECTIVE Hyperplastic polyps (HP) traditionally have been regarded as having no malignant potential. Some studies have suggested that HP in the distal colon may predict presence of adenomatous polyps in the proximal colon. Other studies have failed to show this relationship. The purpose of this study was to evaluate for the first time in our Hispanic veterans population if there was a relation...

In this thesis we study radio resource management (RRM) in two types of CDMAbased wireless networks, cognitive radio networks (CRNs) and cooperative communication networks. In the networks, all simultaneous transmissions share the same spectrum and interfere with one another. Therefore, managing the transmission power is very important as it determines other aspects of the network resource allo...

Objectives: To examine error-related negativity (ERN) and correct response negativity (CRN) in schizophrenia in light of two previous conflicting reports, and to determine their relation to disorganization, psychomotor poverty and reality distortion. Methods: Event-related potentials were recorded from 21 schizophrenic and 21 control participants who performed a simple go/no-go task. Response-l...

The aim of this study was to examine the association between social capital and cost-related non-adherence (CRN) in an elderly population, using data from 1,134 respondents to the Greater Metropolitan Belo Horizonte Health Survey. CRN was lower for those elderly with a better perception of attachment to their neighbourhoods (PR = 0.68; 95%CI: 0.50-0.94), with more social contacts (one to five, ...

Cognitive radio network (CRN) is growing worldwide that leads such networks area unit tormented by the challenges of efficient spectrum/resource allocation also as lack of spectrum. Economical spectrum allocation technique becomes new analysis problem in use of CRN. A significant challenge to the current new technology is the way to build honest assignment of accessible spectrum to unaccredited...

A cognitive radio network (CRN) is a novel solution that promises to solve the spectrum scarcity problem and enhance utilization. However, unsecured CRN can easily be manipulated in order attack legacy users on communication channel. As result, network's performance significantly degrades. Therefore, channel security an important issue needs addressed CRN. In this work, we focus improving of mu...

Cognitive radio network (CRN) is a growing technology targeting more resourcefully exploiting the available spectrum for opportunistic usage. By concept of cognitive radio, wastage reduced about 30% worldwide. The key operation CRN sensing. sensing results are directly proportional to performance network. In CRN, final result decided by combing local results. presence or participation attackers...

In this paper, we report on the controlling of the effect of growth parameters such as substrate temperature and the ratio of Cr and N atoms on phase formation, surface morphology and crystallization of CrN(001) thin films grown by plasma-assisted molecular beam epitaxy on the MgO(001) substrate. The reflected high energy electron diffraction, atomic force microscopy, X-ray diffraction and scan...

Address correspondence to: Doris H. Toro MD FACP, AGAF FACG, Medical Service (111), VA Caribbean Healthcare System, #10 Casia Street San Juan Puerto Rico, 00921-3201. Tel: (787) 641-7582 xt. 31593 • Fax: (787) 641-9510 • Email: doris. [email protected] Objective: Hyperplastic polyps (HP) traditionally have been regarded as having no malignant potential. Some studies have suggested that HP in the dist...