This case study illustrates that these two sets of processes are not mutually exclusive and can affect abundance patterns in a scale-dependent manner. More importantly, the use of our methodology for future empirical studies should help in the merging of niche and neutral perspectives on beta
diversity, an obvious next step for community ecology.”
“Traumatic brain injury (TB!) results in a variable degree of cerebral atrophy that is not always related to cognitive measures across studies. However, the use of different methods for examining atrophy may be a reason why differences Apoptosis Compound Library in vitro exist. The purpose of this manuscript was to examine the predictive utility of seven magnetic resonance selleck compound imaging (MRI) – derived brain volume or indices of atrophy for a large cohort of TBI patients (n = 65). The seven quantitative MRI (qMRI) measures included uncorrected whole brain volume, brain volume corrected by total
intracranial volume, brain volume corrected by the ratio of the individual TICV by group TICV, a ventricle to brain ratio, total ventricular volume, ventricular volume corrected by TICV, and a direct measure of parenchymal volume loss. Results demonstrated that the various qMRI measures were highly interrelated and that corrected measures proved to be the most robust measures related to neuropsychological performance. Similar to an earlier study that examined cerebral atrophy in aging and dementia, these results suggest that a single corrected brain volume measure is all that is necessary in studies examining global MRI indicators of cerebral atrophy in relationship to cognitive
function making additional Entinostat ic50 measures of global atrophy redundant and unnecessary. (JINS, 2011, 17, 308-316)”
“The difficult performance of certain percutaneous interventions in the field of congenital heart disease is well known. Crossing pulmonary arteries in patients who have previously undergone surgical repair or stenotic pulmonary veins in infants can be typical examples of these technical challenges in the catheterization laboratory.\n\nThe Venture wire 6 Fr control catheter (St Jude Medical) is compatible with a steerable tapered radiopaque tip that can be manually angulated (up to 90 degrees) by clockwise rotation of a knob located in the proximal handle. This mechanism directs any 0.014″ guidewire and provides back-up support. This catheter has been successfully used in coronary artery intervention for crossing severely tortuous vessels, extreme angulations of side-branch ostia, jailed stents, saphenous vein graft anastomoses, and chronic total occlusions.\n\nWe report the first use of the Venture wire control catheter (St Jude Medical) in the field of congenital heart disease.