On the Consistency of the Solutions of the Space Fractional Schr\"odinger Equation

Recently it was pointed out that the solutions found in literature for the space fractional Schr\"odinger equation in a piecewise manner are wrong, except the case with the delta potential. We reanalyze this problem and show that an exact and a proper treatment of the relevant integral proves otherwise. We also discuss effective potential approach and present a free particle solution for the space and time fractional Schr\"odinger equation in general coordinates in terms of Fox's H-functions

Shear Behavior of Steel I-Beams Strengthened With CFRP Strips

This paper studies the behavior of simply supported steel I-beams strengthened with carbon fiber reinforced polymers (CFRP) strips on the web as shear reinforcement. The experimental program contains seven simply supported steel beams. One of them was considered as a control beam and the other specimens were strengthened with different schemes; varying the position of CFRP strips to the web, its number of layers and its angle of orientation. The results show that applying CFRP strips on the web of the steel I-beams was an effective strengthening method for increasing the load bearing capacity and decreasing the deformations. Using two layers of diagonal CFRP strips on both sides of the web realized the highest increasing in the load capacity. Moreover, finite element analysis method has been utilized to analyze the tested specimens using ANSYS. A great convergence between the experimental results and the corresponding ones obtained from finite element simulation

Priprava nekoliko novih piridina, tienopiridina i pirido[2,3:4\u27,5\u27]tieno[3\u27,2\u27-d]pirimidin-8-ona iz 2-acetilbenzoimidazola

Reaction of 2-acetylbenzoimidazole 1 with some arylaldehydes under different conditions gave chalcones, 1,5-pentanediones and pyridines. Treatment of chalcones with various types of reagents gave the corresponding new pyridines, thienopyridines, pyrido[2,3:4\u27,5\u27]thieno[3\u27,2\u27-d]- pyrimidin-8-ones via initial addition of active methylene or amino group to the double bond followed by cyclization.Reakcija 2-acetilbenzoimidazola s nekim arilaldehidima pod razli~itim uvjetima daje halkon, 1,5-pentandione i piridine. Obrada halkona s razli~itim reagensima daje nove piridine, tienopiridine i pirido[2,3:4\u27,5\u27]ti -eno[3\u27,2\u27-d]pirimidin-8-one preko po~etne adicije metilena ili amino grupe na dvostruku vezu i nakon toga slijedi ciklizacija

Simply Fuzzy generalized open and closed sets

In this paper, we introduced new concepts , Simply open set, Simply fuzzy open set, Simply fuzzy continuous, Simply fuzzy open function( resp. fuzzy –closed ), simply fuzzy open cover and simply fuzzy compact. We study some of their properties

Long-term protection of hepatitis B vaccination among Egyptian children

Background: Hepatitis B Vaccination is the most effective way to prevent transmission of hepatitis B virus (HBV). Objective: to detect the long-term immunogenicity of the vaccine in Egyptian children after five and ten years of vaccination. Methods: Two hundreds healthy children were recruited. They were divided into two groups according to their age. Group A included 100 child, around 6 years old, vaccinated 5 years ago. Group `B` included 100 child, around 11 years old, vaccinated 10 years ago. Hepatitis B surface antibody (HBsAb) titre was tested, booster dose of the vaccine was given to children whose HBsAb was < 10 mIU/ml, then one and half month later, they were retested for HBsAb to evaluate the response. Results: Both groups had a wide range of HBsAb (2-1000 mlU/ml), and there was a significant difference in the level of the two groups. Our data proves the decline of antibody titre with time. In group A, 19 children needed a booster dose, 14 of them were vaccinated, and 10 were retested after one and half month. The results showed that 9 (90%) responded by increased level of HBsAb, with six (66.6%) showing an adequate response. In group B, 52 children had antibody titre < 10, 48 of them were vaccinated and 34 were retested one and half months later. Two out of the 34 did not respond and 32 (94.2%) responded by an increase in the antibody titre. Of those who responded, 19 had adequate response (HBsAb ≥ 100) and 13 had hypo-response (HBsAb = 10 -100). Eighty percent (80%) of boys versus 51.7% of girls responded adequately. Conclusion: Hepatitis B vaccine is an effective and successful way for preventing HBV infection. No need for booster dose at least for 5 years after vaccination .Keywords: HBV- HB vaccine- long term immunityEgypt J Pediatr Allergy Immunol 2011;9(1):35-4

On-line Colour Measurement Using Laser-based Abridged Spectrophotometry

Carefully constructed colour relationships and subtle colour choice are central to design inspiration. When the designer's ideas are transferred to production, loss of the original colour inspiration is potentially very damaging to the ultimate success of the design. Reliable on-line colour measurement may prove to be an important part of the technology needed to faithfully reproduce original design ideas. A demonstration laser photometer, intended to measure colorant concentrations during production, has been constructed at UMIST. It has proved capable of a level of measurement sensitivity and reflectance measurement accuracy comparable to a reference bench spectrophotometer at the three wavelengths used. The intent is to provide an instrument technology with which the output of a coloration system can be monitored and potentially controlled, on-line. The availability of abundant monochromatic light from lasers, and fibre-optic delivery, makes cheap multi-head measuring systems feasible. The predicted reflectance values for the laser wavelengths are provided by the match prediction system. The colorimeter compares the required with the actual reflectance at three wavelengths, and can generate an unambiguous control signal for up to three colorants in the recipe. Additional laser lines can be added if more than three colorant concentrations need to be controlled.</p

On modeling two immune effectors two strain antigen interaction

In this paper we consider the fractional order model with two immune effectors interacting with two strain antigen. The systems may explain the recurrence of some diseases e.g. tuberculosis (TB). The stability of equilibrium points are studied. Numerical solutions of this model are given. Using integer order system the system oscillates. Using fractional order system the system converges to a stable internal equilibrium. Ulam-Hyers stability of the system has been studied

ABO BLOOD GROUPS IN CORRELATION WITH HYPERLIPIDEMIA, DIABETES MELLITUS TYPE II AND ESSENTIAL HYPERTENSION

Objectives: There are associations between ABO blood groups and systemic diseases. So we aim to explore any associations among ABO blood groupwith hyperlipidemia; diabetes mellitus (DM) type II, and essential hypertension.Methods: A total of 800 subjects were recruited. Patients groups were subdivided into hyperlipidemia group (n=100), DM type II group (n=160),and hypertension group (n=166). Fasting blood sample was collected and plasma samples used for measuring of 2, 3-dinor-6-keto-prostaglandinF1α (PGF1α), 11-dehydro-thromboxane (TX) B2, insulin, triglycerides (TGs), total cholesterol (Tc), high-density lipoprotein cholesterol (HDL-C),prothrombin time (PT), activated partial PT (aPPT), blood group type, random blood glucose level, and body mass index (BMI) were also determined.Results: Blood Group A demonstrates a significant elevation in insulin, random blood sugar (RBS), Tc, TGs, and low-density lipoprotein (LDL)/HDLratio and shows a significant decrease in prostacyclin. Blood group B demonstrates a significant elevation in TXB, Tc, TGs, and LDL/HDL ratio andshows a significant decrease in PT. Blood group AB demonstrates a significant elevation in PT, and prostacyclin and shows a significant decrease ininsulin, RBS, Tc, TGs, and LDL/HDL. Blood group O demonstrates a significant elevation in PT, and prostacyclin and shows a significant decrease inTXB2, Tc, TGs, and LDL/HDL ratio.2Conclusions: Blood group AB is protective against hyperlipidemia, diabetes, thrombosis, and hypertension, blood group O is protective againstcardiovascular diseases while blood group B followed by A are risk factors for hypertension and blood group A is a risk factor for diabetes. Thesefindings are establishing the ethnic-dependent correlation of ABO groups and studied diseases.Keywords: Hyperlipidemia, DM type II, Hypertension, Thrombosis, ABO blood groups

Treatment results and prognostic factors of pediatric neuroblastoma: a retrospective study

<p>Abstract</p> <p>Background</p> <p>We conducted a retrospective analysis to investigate treatment results and prognostic factors of pediatric neuroblastoma patients.</p> <p>Methods</p> <p>This retrospective study was carried out analyzing the medical records of patients with the pathological diagnosis of neuroblastoma seen at South Egypt Cancer Institute, Assiut University during the period from January 2001 and January 2010. After induction chemotherapy, response according to international neuoblastoma response criteria was assessed. Radiotherapy to patients with residual primary tumor was applied. Overall and event free survival (OAS and EFS) rates were estimated using Graphed prism program. The Log-rank test was used to examine differences in OAS and EFS rates. Cox-regression multivariate analysis was done to determine the independent prognostic factors affecting survival rates.</p> <p>Results</p> <p>Fifty three cases were analyzed. The median follow-up duration was 32 months and ranged from 2 to 84 months. The 3-year OAS and EFS rates were 39.4% and 29.3% respectively. Poor prognostic factors included age >1 year of age, N-MYC amplification, and high risk group. The majority of patients (68%) presented in high risk group, where treatment outcome was poor, as only 21% of patients survived for 3 year.</p> <p>Conclusion</p> <p>Multivariate analysis confirmed only the association between survival and risk group. However, in univariate analysis, local radiation therapy resulted in significant survival improvement. Therefore, radiotherapy should be given to patients with residual tumor evident after induction chemotherapy and surgery. Future attempts to improve OAS in high risk group patients with aggressive chemotherapy and bone marrow transplantation should be considered.</p