Minia University

About: Minia University is a education organization based out in Minya, Egypt. It is known for research contribution in the topics: Population & Medicine. The organization has 4967 authors who have published 8986 publications receiving 108384 citations.

Energy distribution of a stringy charged black hole

Abstract: The energy distribution associated with a stringy charged black hole is studied using Moller’s energy-momentum complex. Our result is reasonable and it differs from that known in literature using Einstein’s energy-momentum complex.

Hybrid Grasshopper Optimization Algorithm and Support Vector Machines for Automatic Seizure Detection in EEG Signals

Abstract: In this paper, a hybrid classification model using Grasshopper Optimization Algorithm (GOA) and support vector machines (SVMs) for automatic seizure detection in EEG is proposed called GOA-SVM approach Various parameters were extracted and employed as the features to train the SVM with radial basis function (RBF) kernel function (SVM-RBF) classifiers GOA was used for selecting the effective feature subset and the optimal settings of SVMs parameters in order to obtain a successful EEG classification The experimental results confirmed that the proposed GOA-SVM approach, able to detect epileptic and could thus further enhance the diagnosis of epilepsy with accuracy 100% for normal subject data versus epileptic data Furthermore, the proposed approach has been compared with Particle Swarm Optimization (PSO) with support vector machines (PSO-SVMs) and SVM using RBF kernel function The computational results reveal that GOA-SVM approach achieved better classification accuracy outperforms both PSO-SVM and typical SVMs

Age-Period-Cohort Analysis of Stroke Mortality Attributable to High Sodium Intake in China and Japan.

Abstract: Background and Purpose- The aim of this study is to assess the long-term trends in stroke mortality attributable to high sodium intake in China and Japan during the period 1990 to 2016. Methods- The mortality data were obtained from the GBD study (Global Burden of Disease) 2016 and were analyzed using an age-period-cohort method. Results- The age-standardized mortality rates showed declining trends for high sodium intake-related stroke mortality. The overall net drifts per year were -3.1% for Chinese men and -5.0% for Chinese women; and -4.6% for Japanese men and -5.7% for Japanese women. The local drift values were below zero in all age groups for both sexes in both countries, and all local drift values of female participants were below their counterparts of male participants. The longitudinal age curves of high sodium intake-attributable stroke mortality increased rapidly for both sexes in China, whereas those of Japanese were slowly rising. The period and cohort rate ratios were found to have similar downward patterns for both sexes in both countries, with a quicker decline for women than for men (significantly with P<0.05 for all). Conclusions- The age-standardized mortality rates, the period effect and the cohort effect of stroke mortality attributable to high sodium intake in China and Japan have been declining in both sexes and all age groups from 1990 to 2016. Consequently, sodium-reduction strategies are of low cost and effective for the prevention of stroke. It is necessary to educate the nation with the correct knowledge on healthy diet and techniques to reduce salt consumption.

Optical spectroscopy characterization of zinc tetra pyridel porphine (ZnTPyP) organic thin films

Abstract: Thermal evaporation technique was used to grow thin films of tetra pyridel-porphine zinc (ZnTPyP) onto quartz substrate. Optical constants, namely refractive index n and absorption index k, of the as-deposited ZnTPyP thin films have been estimated via spectrophotometric measurements of the transmittance and the reflectance within the spectral range (200–2500) nm. Depending on the single oscillator and Drude models, some associated parameters including the oscillation energy E o , the dispersion energy E d the optical dielectric constant e ∞ , the lattice dielectric constant e L and the ratio of the free carriers concentration to their effective mass N / m ∗ were determined. Urbach curves include 2 various exponential regions with different slopes. The absorption analysis was performed with the purpose of concluding the scattering mechanism and the type of the electronic inter-band transition for the studied thin film. Also, different dispersion and absorption parameters were determined. In addition, at lower photon energy, the third order nonlinear susceptibility χ ( 3 ) and the nonlinear refractive index n 2 were reported and interpreted.