نتایج جستجو برای: hp spectral
تعداد نتایج: 176462 فیلتر نتایج به سال:
The paper summarises the results of experiments carried out to investigate the e ect of a narrow-band noise in the range 4 8 Hz and of the acoustic pressure SPL = 110 dB(HP) on the alpha waves in the EEG signal. The test group included 23 males aged 21 33. It is found out that white noise in the infrasound range 4 8Hz leads to changes of amplitudes of the spectral power density of alpha waves. ...
Structurally new antioxidative metabolite was isolated from mycelial culture of mushroom Stereum hirsutum. Culture broth was subjected to Diaion HP-20 column chromatography, and 70% aqueous MeOH eluent was extracted with EtOAc. EtOAc extract was purified through silica gel and Sephadex LH-20 column chromatographies, and reversed phase C18 HPLC. Compound was revealed to be new dihydroxylated der...
Polymorphic loci regulating oxidative stress are potential susceptibility genes for diabetic nephropathy (DN). Haptoglobin (Hp) is an antioxidant protein which serves to protect against oxidative stress induced by extracorpuscular hemoglobin. There are two alleles at the Hp locus, 1 and 2. The Hp 1 protein is a superior antioxidant to the Hp 2 protein. The Hp 2 allele has been associated with i...
Aim: This study aimed to analyze helicobacter pylori (Hp) risk factors, which may provide evidence for the prevention and treatment of Hp infection. Methods: 8115 subjects were recruited. Questionnaire surgery was done in 487subjects who received gastroscopy. Results: The incidence of Hp infection was 35.2% in males and 30.3% in females showing significant difference (P<0.05). The mean age was ...
Helicobacter pylori (Hp) is one of the most common bacteria infecting humans. Recently, certain extragastric manifestations, linked to Hp infection, have been widely investigated, suggesting that Hp infection might be a 'systemic' disease. Accumulating, yet limited, evidence points to a potential association between Hp infection and lung cancer risk. Epidemiologic studies have shown that odds r...
BACKGROUND Whether the characteristics and prognosis of gastric cancer (GC) are different in patients with and without Helicobacter pylori (HP) remains controversial. The definitions of HP status in patients with atrophic gastritis but negative tests for HP are heterogeneous. We aimed to assess the impact of HP on the prognosis of GC using different definitions. METHODS From 1998 Nov to 2011 ...
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...
We analyze and compare different techniques to set up the stiffness matrix in the hp-version of the finite element method. The emphasis is on methods for second order elliptic problems posed on meshes including triangular and tetrahedral elements. The polynomial degree may be variable. We present a generalization of the Spectral Galerkin Algorithm of [7], where the shape functions are adapted t...
Frequency of helicobacter pylori among patients with diabetes mellitus : Research Center for Gastroenterology and Liver Disease, Shaheed Beheshti University of Medical Sciences Abstract: Background: It is believed that diabetes mellitus (DM) increase the susceptibility to Helicobacter Pylori (HP) infection, but there is little information about the role of DM in being infected patients wi...
In this paper, consideration is given to how aliasing errors, introduced when evaluating nonlinear products, inexactly affect the solution of Galerkin spectral/hp element polynomial discretisations on triangles. A theoretical discussion is presented of how aliasing errors are introduced by a collocation projection onto a set of quadrature points insufficient for exact integration, and consider ...
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