We study the uniform approximation of boundary layer functions exp(?x=d) for x 2 (0; 1), d 2 (0; 1], by the p and hp versions of the nite element method. For the p version (with xed mesh), we prove super-exponential convergence in the range p +1=2 > e=(2d). We also establish, for this version, an overall convergence rate of O(p ?1 p lnp) in the energy norm error which is uniform in d, and show ...

We study the uniform approximation of boundary layer functions exp(−x/d) for x ∈ (0, 1), d ∈ (0, 1], by the p and hp versions of the finite element method. For the p version (with fixed mesh), we prove super-exponential convergence in the range p+ 1/2 > e/(2d). We also establish, for this version, an overall convergence rate of O(p−1 √ lnp) in the energy norm error which is uniform in d, and sh...

Background: The influence of Helicobacter pylori (HP) in inflammatory disorders of the digestive mucosa has been the subject of several studies since socioeconomic, personal and environmental factors were implicated in the bacteria transmission. Aim: To correlate the inflammatory endoscopic findings with HP infection and the onset of mucosal diseases mucous of the upper digestive tract. Met...

OBJECTIVE To evaluate the association between Haptoglobin (HP) gene polymorphisms with inflammatory status in obese subjects. MATERIALS AND METHODS A cross-sectional study was carried out. A total of 276 apparently healthy men and nonpregnant obese women were enrolled and allocated according to the HP genotype into the HP (1)/HP (1), HP (2)/HP (1), and HP (2)/HP (2) groups. Distribution of HP...

We analyze the consistency, stability, and convergence of an hp discontinuous Galerkin spectral element method of Kopriva [J. Comput. Phys., 128 (1996), pp. 475–488] and Kopriva, Woodruff, and Hussaini [Internat. J. Numer. Methods Engrg., 53 (2002), pp. 105–122]. The analysis is carried out simultaneously for acoustic, elastic, coupled elastic-acoustic, and electromagnetic wave propagation. Our...

Haptoglobin (Hp) is a mammalian serum glycoprotein showing a genetic polymorphism with three types, 1-1, 2-2 and 1-2. Hp appears to conserve the recycling of heme-iron by forming an essentially irreversible but non-covalent complex with hemoglobin which is released into the plasma by erythrocyte lysis. As an important consequence, Haptoglobin-Hemoglobin complex (Hp-Hb) shows considerable antiox...

BACKGROUND The haptoglobin gene (HP) has 2 common codominant alleles (HP(1) and HP(2)) that account for 3 phenotypes. HP(2) is generated by a 1.7-kb intragenic duplication of HP(1). METHODS We used the real-time TaqMan PCR system to develop an effective method for HP genotyping that allows us to evaluate the relative number of copies of the HP(2) allele-specific junctional region of the 1.7-k...