background: closure of patent ductus arteriosus (pda), ventricular septal defect (vsd) and atrial septal defect (asd) can be done surgically or by device. this study was designed to compare the total cost of surgical or device closures of pda, asd or vsd for iranian patients. methods: this is a cross-sectional study, conducted from january 1, 2005 until january 1, 2006 in two large heart center...

this is a case presentation of a 26-year-old woman with a moderate-sized atrial septal secundum defect (17mm) who underwent catheterism, during which an amplatzer septal occluder number 26 was inserted successfully. on the second postoperative day, she deteriorated and a clinical examination showed a typical tamponade. after a percutaneous aspiration of the pericardial cavity and transient impr...

Let B be a real 2-block of a finite group G. A defect couple of B is a certain pair (D, E) of 2-subgroups of G, such that D a defect group of B, and D ≤ E. The block B is principal if E = D; otherwise [E : D] = 2. We show that (D, E) determines which B-subpairs are real. The involution module of G arises from the conjugation action of G on its involutions. We outline how (D, E) influences the v...

We report the presence, in heavily doped and compensated ZnSe:N, of a resonant donor defect having an activation energy of .120– 160 meV. The donor-acceptor pair photoluminescence observed in these materials is quenched at pressures higher than 25 kbar. We attribute this quenching to the shift of a resonant defect level into the band gap. A split N-N interstitial on a Se site is proposed as a s...

In double-cell perovskites LnBaFe2O5+w, only lanthanoids Ln ?= ?Pr to Gd support wide equilibrium nonstoichiometry w from 0 >0.5. This study investigates point-defect equilibria behind the variation in along ?Nd, Sm, by quenching oxides flowing gas of controlled oxygen partial pressures and temperatures. The experimental data as a function pO2 T are least-squares fit via standard enthalpies ent...

Steel surface defect detection is essentially one of pattern recognition problems. Support Vector Machines (SVMs) are known as one of the most proper classifiers in this application. In this paper, we introduce a more accurate classification method by using SVMs as our final classifier of the inspection system. In this scheme, multiclass classification task is performed based on the ”one-agains...

an injective map f : e(g) → {±1, ±2, · · · , ±q} is said to be an edge pair sum labeling of a graph g(p, q) if the induced vertex function f*: v (g) → z − {0} defined by f*(v) = (sigma e∈ev) f (e) is one-one, where ev denotes the set of edges in g that are incident with a vetex v and f*(v (g)) is either of the form {±k1, ±k2, · · · , ±kp/2} or {±k1, ±k2, · · · , ±k(p−1)/2} u {k(p+1)/2} accordin...

Klein’s quartic curve may be described as the Riemann surface obtained by taking the quotient of H by the (principal congruence) subgroup Γ(7) = ker {PSL2(Z) → PSL2(Z/7Z)}, and filling points in the cusps (punctures) to get a closed surface (although the punctured surface is sometimes also referred to as Klein’s quartic). It has a cell decomposition by 24 heptagons, centered at each cusp coming...