The mechanisms underlying the oxygen uptake (Vo(2)) slow component during supra-lactate threshold (supra-LT) exercise are poorly understood. Evidence suggests that the Vo(2) slow component may be caused by progressive muscle recruitment during exercise. We therefore examined whether leg muscle activation patterns [from the transverse relaxation time (T2) of magnetic resonance images] were assoc...

Let Sn = 1 nXnX∗ n where Xn = {Xij } is a p × n matrix with i.i.d. complex standardized entries having finite fourth moments. Let Yn(t1, t2, σ ) = √ p(xn(t1)∗(Sn + σI)−1xn(t2)− xn(t1)∗xn(t2)mn(σ )) in which σ > 0 and mn(σ)= ∫ dFyn (x) x+σ where Fyn(x) is the Marčenko–Pastur law with parameter yn = p/n; which converges to a positive constant as n→∞, and xn(t1) and xn(t2) are unit vectors in Cp ,...

The MR findings in three patients with subacute sclerosing panencephalitis were reviewed and compared with CT findings in the same patients. Long-T2 lesions were demonstrated in each case, although their distribution varied with the clinical stage of the disease. MR, especially T2-weighted imaging, appears to be of great utility in the assessment of subacute sclerosing panencephalitis.

In this work, we derive coefficient bounds for the symmetric Toeplitz matrices T2(2), T2(3), T3(1), and T3(2), which are known first four determinants a new family of analytic functions with Borel distribution series in open unit disk U. Further, some special cases results obtained also pointed.

Background Duchenne Muscular Dystrophy (DMD), a lethal X-linked skeletal and cardiac myopathy, affects 1/3500 males[1-2]. MRI studies have shown occult ventricular dysfunction and myocardial fibrosis in DMD patients. Previously we used the Full Width of Half Maximum (FWHM) of T2 distribution in LV to quantify the myocardial structural heterogeneity in DMD patients. In DMD subject groups, we sho...

Abstract: An important parameter in the study of population evolution is θ = 4Nν, where N is the effective population size and ν is the rate of mutation per locus per generation. Therefore, θ represents the mean number of mutations per site per generation. There are many estimators of θ, one of them being the mean number of pairwise nucleotide differences, which we call T2. Other estimators are...

A major focus of attention in structural brain-imaging research in major depression is the increased prevalence of T2-weighted image 'hyperintensities' (T2-WIH). Our aims in this study were to characterize the distribution and magnetic resonance imaging (MRI) presentation of brain hyperintensities in major depression patients compared to healthy control subjects and to explore the association b...