197 research outputs found
Death penalty in Egypt: Form of justice or permitted practice of murder?
No full textThis audio documentary revolves around the various aspects of the application of the death penalty in Egypt to figure out whether this verdict is as an effective method to combat serious crimes in Egypt. It focuses on both the religion and political aspects of the death penalty. For this audio documentary, I interviewed my Professor Mostafa El-Sayed, Abdallah Wageeh, Professor Mohamed Serage, Priest Adel Mansour and Professor Reem Saad
Co-doped In-Situ Engineered Carbon Nano-Onions Enabled High-Performance Supercapacitors
No full textThe feasibility of achieving in situ sulfur (S) and nitrogen (N) co-doped carbon nano-onions (CNOs and SN–CNOs) via a simple flame-pyrolysis technique without using sophisticated high-vacuum annealing or expensive nanodiamond-based complex processes is demonstrated for the first time. The characteristic onion-like feature of 0.34 nm remained intact with a high degree of ordering and graphitization, even though the S and N heteroatoms were co-doped simultaneously. The in situ co-doped SN–CNO demonstrated high supercapacitor device performance with a high energy density of 25 Wh kg−1 at a maximum power density of 18 kW kg−1, maintaining 98% specific capacitance over 10,000 cycles at 10 A g−1. These are the highest achieved device performance values of a fullerene family electrode material to date
Combustion and Emission Characteristics of Egyptian Sugarcane Bagasse and Cotton Stalks Powders in a Bubbling Fluidized Bed Combustor
No full textThermo-physical and kinetics parameters determination and gases emissions of self-ignition of sieved rice husk of different sizes on a hot plate
No full textThermal decomposition and combustion characteristics of biomass materials using TG/DTG at different high heating rates and sizes in the air
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Correlation between Coronary Artery Diseases and Dyslipidemia in Type 2 Diabetic Patients
No full textBackground: Premature atherosclerotic cardiovascular disease (CVD) has a significant association with diabetes mellitus. There are numerous studies showing that decreasing cholesterol is effective in improving cardiovascular outcomes in people with diabetes. Objective: This study aimed to identify the correlation between coronary artery diseases (CADs) and dyslipidemia in diabetic patients.Patients and methods: In the Cardiology Department of Zagazig University Hospitals we conducted this case-control study. 140 patients with type 2 DM were divided into two groups: Group 1 included 70 people with type 2 diabetes who had CADs and group 2 that included 70 patients with type 2 DM who had no signs of CADs (admitted complaining of symptoms of angina or CA showing no significant stenotic lesions). Angiographic examination and fasting and 2-hour postprandial blood glucose levels were performed for all patients. Moreover, comprehensive history was taken, cardiovascular risk profiles and laboratory investigations such as glycosylated hemoglobin (HbA1c) were done.Results: CAD group were significantly higher regarding BMI as it was distributed as 28.77 ± 2.3 and 30.04 ± 3.03 between No-CAD and CAD respectively. There was no significant difference or association between smoking or hypertension and CAD. SBP and DBP were significantly higher among CAD. Fasting blood glucose and HbA1c were significantly higher among CAD group than in No-CAD group. CAD group showed significantly higher TG and LDLc distribution than No-CAD group.Conclusion: Increased triglycerides and decreased HDL levels were associated with CVD among diabetic patients
In Type 2 Diabetes Mellitus Patients, the Atherogenic Index of Plasma as a Marker of Coronary Artery Diseases
No full textOne-third of all deaths globally are caused by cardiovascular disease (CVD), and this percentage is predicted to climb as CVD risk factors become more widespread. Primary prevention of risk factors is the most fundamental duty in dealing with the CVD epidemic. The link between atherogenic index of plasma (AIP) and other CVD risks among university workers was investigated among study participants in order to demonstrate that AIP, not lipid profile, is a better predictor of CVDs. They discovered a link between AIP and CVD risk variables (body mass index, visceral fat, body fat, total cholesterol, low density lipoprotein cholesterol, triglyceride, glucose, and high density lipoprotein cholesterol) in people with type 2 diabetes. This comparative study was carried out in Cardiology Department, Zagazig University Hospitals. This study included 140 type 2 diabetes mellitus patients. They were classified into 2 main groups: Group 1: 70 patients with type 2 diabetes who had coronary artery disease (CAD). Group (2): 70 type 2 diabetes individuals with no indicators of CAD (admitted complaining of symptoms of angina or CA showing no significant stenotic lesions). Regarding study explained it has showed that AIP outperforms standard lipid indicators in predicting the likelihood ofdeveloping CADs in people with type 2 diabetes. In addition, the value of AIP in diabetic and prediabetic patients for predicting future CVD is being investigated. They came to the conclusion that AIP is an excellent predictor of future CVD in those with diabetes and those who are prediabetic
Different controlled nanostructures of Mn-doped ZnS for high-performance supercapacitor applications
No full textVarious Mn-doped ZnS controlled nanostructures were synthesized directly on the nickel foam to develop a binder-free, high-performance positive electrode for supercapacitors, where specific energy, specific power, and cycling stability are the crucial parameters. We achieved Mn-doped ZnS based different nanostructures, such as nanosheets, nanoflakes, and nanoneedles just by monitoring the reaction temperature. Among those three morphologies, the nanosheets showed the highest specific capacitance of 1905 F g at a current density of 1 A g and 93.1% capacity retention after 10,000 cycles in a three-electrode system. An asymmetric supercapacitor (ASC) device was assembled using Mn-doped ZnS nanosheets and activated carbon as a positive and negative electrode, respectively. The ASC device showed a high capacitance of 140 F g (210 C g), delivered a high specific energy of 43.3 Wh kg, and a high specific power of 6.8 kW kg. The ASC device retained 93.3% with excellent coulombic efficiency of 95.7% after 8,000 cycles. Importantly, two serially connected ASC devices illuminated 52 red light-emitting diodes. This highlights the potential of the Mn-doped ZnS based ASC device for the next generation supercapacitors
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