background: this study addresses the null hypothesis that there is no expansion of heterotopic ossification (ho) in the elbow beyond what can be seen early on.   methods: the area of ho was measured on lateral radiographs of 38 consecutive patients that had operative treatment of ho between 2000 and 2013. measurements from radiographs obtained between 3 to 7 weeks were compared to measurements ...

In this paper we prove that there exist 4—{k2; 1/2k(k—1); k(k—2)} SDS, regular Hadamard matrices of order 4k2, and SBIBD(4k2, 2k2 + k, k2 + k) for k = 47, 71, 151, 167, 199, 263, 359, 439, 599, 631, 727, 919, 5q1, 5q2N, 7q3, where ql, q2 and q3 are prime power such that ql ≡ 1(mod 4), q2 ≡ 5(mod 8) and q3 ≡ 3(mod 8), N = 2a3bt2, a, b = 0 or 1, t ≠ 0 is an arbitrary integer. We find new SBIBD(4k...

In the constrained longest common subsequence (CLCS) problem, we are given two sequences X , Y and the constrained sequence P in run-length encoded (RLE) format, where |X| = n, |Y | = m and |P | = r and the numbers of runs in RLE format are N , M and R, respectively. In this paper, we show that after the sequences are encoded, the CLCS problem can be solved in O(NMr+ r × min{q1, q2} + q3) time,...

We characterize the finite Veronesean Hn ⊆ PG(n(n + 2), q) of all Hermitian varieties of PG(n, q2) as the unique representation of PG(n, q2) in PG(d, q), d≥n(n+2), where points and lines of PG(n, q2) are represented by points and ovoids of solids, respectively, of PG(d, q), with the only condition that the point set of PG(d, q) corresponding to the point set of PG(n, q2) generates PG(d, q). Usi...

We develop a method for constructing the Heavy Baryon Chiral Perturbation Theory (HBChPT) Lagrangian, to a given chiral order, within HBChPT. We work within SU(2) theory, with only the pion field interacting with the nucleon. The main difficulties, which are solved, are to develop techniques for implementing charge conjugation invariance, and for taking the nucleon on shell, both within the non...

In this paper we use Gröbner bases for the implicitization of rational parametric curves and surfaces in 3D-space. We prove that the implicit form of a curve or surface given by the rational parametrization x1 := p1 q1 x2 := p2 q2 x3 := p3 q3 , where the p’s and q’s are univariate polynomials in y1 or bivariate polynomials in y1, y2 over a field K, can always be found by computing GB({q1 · x1 −...

At our institution, implementation of a formal training course in Basic Focus Assessed Transthoracic Echocardiography (FATE) was associated with an improvement in anesthesia trainees' ability to obtain transthoracic echocardiography (TTE) images. Total image acquisition scores improved by a median (Q1, Q3) 9.1 (2.9,14.7) percentage points from pre-to post-hands-on FATE course (n=20; p=0.001). P...

BACKGROUND This study addresses the null hypothesis that there is no expansion of heterotopic ossification (HO) in the elbow beyond what can be seen early on. METHODS The area of HO was measured on lateral radiographs of 38 consecutive patients that had operative treatment of HO between 2000 and 2013. Measurements from radiographs obtained between 3 to 7 weeks were compared to measurements fr...