BACKGROUND AND AIMS There has been a significant proximal shift in the distribution of colorectal cancer (CRC) in Northern Ireland over recent decades. The aim of this study was to investigate the potential implications of this proximal shift in CRC distribution on the efficacy of flexible sigmoidoscopy (FS) as a screening tool. PATIENTS AND METHODS The site distribution of 5153 CRCs was avai...

rigination of the first major septal perforator branch from a site other than the left anterior descending coronary artery (LAD) is a relatively rare and benign congenital variation. 1 Coronary angiography reveals anomalous vessels originating directly from the aorta and from the proximal portion of the right coronary artery as collateral circulation to the LAD, particularly in patients with pr...

central to vygotsky-inspired sociocultural theory (sct) is the notion of zpd seen by sla researchers as a useful framework within which l2 teaching and learning can take place. van lier (2004) argues that the zpd could be activated in diverse proximal contexts (pcs) and is not limited to the expert-novice scenario. . this study probed whether iranian efl learners' collaborative task performance...

Resonance Raman spectra of horseradish peroxidase (HRP) in the 200 to 600 cm" region were measured for the reduced and oxidized states and in the presence and absence of substrate, For the reconstituted HRP with a S4Fe-substituted heme, the Raman line of ferro HRP at 244 cm" was shifted to 246 cm" but all other modes remained unshifted. The amount of the frequency shift agreed with that observe...

In simulation studies using a realistic model CA1 pyramidal cell, we accounted for the shift in mean firing phase from theta cycle peaks to theta cycle troughs during rapid-eye movement (REM) sleep reactivation of hippocampal CA1 place cells over several days of growing familiarization with an environment (Brain Res 855:176-180). Changes in the theta drive phase and amplitude between proximal a...

BACKGROUND Although carina shift and plaque shift are suggested as mechanisms of side branch ostial (SBo) compromise after main vessel (MV) stenting in bifurcation lesions, there are few direct evidence. Our purpose was to confirm the mechanism of SBo compromise after MV stent implantation. METHODS AND RESULTS Intravascular ultrasound images of both MV and SB before procedure and immediately ...

statement of problem: dental caries is one of the common diseases in the world. it is an infective disease which is caused by loss of minerals and destruction of dental tissues. one of the most effective ways to diagnose the interproximal caries is radiography. bitewing radiography is the best way for caries diagnosis. purpose: the aim of this study was to evaluate the prevalence of the interpr...