THE OIL - PRICE EFFECT ON THE DOLLAR/POUND RATE OF EXCHANGE

SHAZLY, MONA R. EL 한국국제경제학회 1989 International Economic Journal Vol.3 No.3

In this paper the basic monetary model of exchange rate determination is extended to capture the impact of real shocks in explaining exchange rate behavior. The model is tested using the dollar/pound rate of exchange over the period 1978-1985. The present work modifies the standard model by incorporating the relative price of oil on the demand for money. Results of the test confirm the statistical significance of the variables specified by the model in determining the value of the pound sterling during this time period.

Public Shareholding Companies in the New Qatari Corporate Law: Flexibility and Efficiency

( Yassin El Shazly ) 고려대학교 법학연구원 2017 The Asian Business Lawyer Vol.19 No.-

By 2030, Qatar is aiming not only be an oil-based economy but as well a knowledge-based economy, guaranteeing a stable and sustainable business environment in order to assure the flow of investment. For this end, the State of Qatar introduced a package of legislative texts to boost the business climate. As a result, a new corporate law was promulgated in 2015 including many measures to facilitate the procedures to establish companies and mating the liquidity in the market. In this context, there is a need to analyze the legal protection of shareholders in order to assess the success of the new law in providing an efficient shareholders` protection.

Physiological and molecular study on the anti-obesity effects of pineapple (Ananas comosus) juice in male Wistar rat

Samir A. El-Shazly,Mohamed M. Ahmed,Mohammad S. AL-Harbi,Mohamed E. Alkafafy,Hanan B. El-Sawy,Sayed A. M. Amer 한국식품과학회 2018 Food Science and Biotechnology Vol.27 No.5

The present study was performed to assess antiobesity effects of raw pineapple juice in high fat diet (HFD)-induced fatness. Based on food type, rats were divided into normal diet and HFD groups. When animals of HFD group become obese, they were given pineapple juice along with either HFD or normal diet. Blood biochemistry, liver and muscle gene expressions were analyzed. HFD induced significant elevations in body weight, body mass index (BMI), body fat accumulation, liver fat deposition and blood lipids while juice restored these parameters near to their normal values. Juice significantly decreased serum insulin and leptin while adiponectin was increased. Juice administration downregulated the increment of FAS and SERBP-1c mRNA expression in liver and upregulated HSL and GLUT-2 expressions. The muscular lipolytic CPT-1 expression was upregulted by juice treatment. Pineapple juice, therefore, may possibly be used as anti-obesity candidate where it decreased lipogenesis and increased lipolysis.

Sorption of lead (II) and strontium (II) ions from aqueous solutions onto non-living Chlorella Vulgaris Alga/ Date pit activated carbon composite

Dakroury G. A.,El-Shazly E. A. A.,Hassan H. S. 한국탄소학회 2022 Carbon Letters Vol.32 No.2

Heavy metal pollution has a harmful impact on human health and is regarded as a vital problem. Preparation of a novel, low cost bio-sorbent for heavy metal sorption is the main target of this research. Non-living Chlorella Vulgaris Alga/Date pit activated carbon composite (1:1), (CV/AC), is a novel bio-sorbent prepared by the wet-chemical method for sorption of Pb (II) and Sr (II) from aqueous media. The optimum pH for sorption reaction is 5 and the equilibrium time is achieved within 1 h. The sorption efficiencies are 90.5% for Pb(II) and 95.7% for Sr(II) with initial concentration Co 10 mg L–1 at 298 K. The monolayer sorption capacities of CV/AC composite at 298 K and pH = 5 were 6.34  ±  0.059, 5.97  ±  0.22 mg g–1. The saturation capacities were 98.5 and 125 mg g–1 for Pb (II) and Sr (II), respectively after 10 days. The sorption process is a spontaneous and endothermic reaction. It follows a pseudo-2nd-order mechanism. The results are suggestive of the need to adopt CV/AC composite as a potential bio-sorbent of Pb (II) and Sr (II) for waste water treatment.

Clinical and pathological assessment of different suture techniques for microvascular anastomosis in rat femoral artery

Khaled Radad,Mohamed El-Shazly 대한수의학회 2007 Journal of Veterinary Science Vol.8 No.3

This study examined the clinical and pathological features after a microvascular anastomosis of a rat femoral artery using four different suture techniques. Sixty Sprage-Dawely rats were divided randomly into 4 groups. Fifteen bisected arteries (one from each animal) in Group I, II, III and IV were sutured with the simple interrupted suture, continuous suture, sleeve suture and cuff suture, respectively. The anastomosis times in Group I, II, III and IV were 28.67, 14.67, 15.47 and 15.93 min, respectively. Immediate bleeding that stopped without intervention (grade I) was observed in 67%, 73% and 60% of the anastomosed vessels in Groups II, III and IV, respectively, while 60% of the vessels in Group I showed light bleeding that was inhibited by gentile pressure (grade II). All vessels examined appeared to be patent at 5 and 15 min after the anastomosis. On the 7th day postoperatively, the vessels of Group I showed the highest patency rate (93%) compared with Groups II (67%), III (73%) and IV (87%). Moreover, there were more pronounced pathological changes in Group I than in the other groups. These changes included endothelial loss, endothelial proliferation, degeneration and necrosis of the tunica media. Suture materials surrounded by an inflammatory reaction were also observed. In conclusion, the simple interrupted suture is preferable for microvascular anastomosis due to its highest patency rate. The other techniques investigated can be good alternatives because of their short anastomotic time and moderate pathological changes.

Experimental and numerical study on the tensile, three-point-bending, and interlaminar fracture toughness of GLARE

Bassem Dahshan,Abdel-Halim M. El-Habbak,Mahmoud A. Adly,Mostafa Shazly 대한기계학회 2020 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.34 No.8

Fiber metal laminates (FMLs) are a special type of composite structure consisting of metal sheets bonded to composite laminas. The current study investigated the effect of the replacement of cross-ply (0/90 ◦ ) glass fiber reinforced epoxy laminas with woven glass fiber reinforced polyester laminas in GLARE laminates on the tensile, bending and interlaminar fracture toughness of the laminate. Test results showed that the existence of woven glass fiber laminas increased the tensile strength with a decrease in corresponding strain, the flexure strength decreased significantly due to the existence of polyester instead of epoxy resin, and the mode I interlaminar fracture toughness increased. ABAQUS® software was used to simulate the tests, and ductile damage was employed to detect the failure of aluminum layers, the Hashin failure criteria to model the failure of composite layers in the laminate, and the cohesive surface interaction to capture delamination between layers.

Survival and Prognostic Factors for Hepatocellular Carcinoma: an Egyptian Multidisciplinary Clinic Experience

Abdelaziz, Ashraf Omar,Elbaz, Tamer Mahmoud,Shousha, Hend Ibrahim,Ibrahim, Mostafa Mohamed,El-Shazli, Mostafa Abdel Rahman,Abdelmaksoud, Ahmed Hosni,Aziz, Omar Abdel,Zaki, Hisham Atef,Elattar, Inas An Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.9

Background: Hepatocellular carcinoma (HCC) is a dismal tumor with a high incidence, prevalence and poor prognosis and survival. Management of HCC necessitates multidisciplinary clinics due to the wide heterogeneity in its presentation, different therapeutic options, variable biologic behavior and background presence of chronic liver disease. We studied the different prognostic factors that affected survival of our patients to improve future HCC management and patient survival. Materials and Methods: This study is performed in a specialized multidisciplinary clinic for HCC in Kasr El Eini Hospital, Cairo University, Egypt. We retrospectively analyzed the different patient and tumor characteristics and the primary mode of management applied to our patients. Further analysis was performed using univariate and multivariate statistics. Results: During the period February 2009 till February 2013, 290 HCC patients presented to our multidisciplinary clinic. They were predominantly males and the mean age was $56.5{\pm}7.7years$. All cases developed HCC on top of cirrhosis that was mainly due to HCV (71%). Most of our patients were Child-Pugh A (50%) or B (36.9%) and commonly presented with small single lesions. Transarterial chemoembolization was the most common line of treatment used (32.4%). The overall survival was 79.9% at 6 months, 54.5% at 1 year and 22.4% at 2 years. Serum bilirubin, site of the tumor and type of treatment were the significant independent prognostic factors for survival. Conclusions: Our main prognostic variables are the bilirubin level, the bilobar hepatic affection and the application of specific treatment (either curative or palliative). Multidisciplinary clinics enhance better HCC management.

Preparation of activated carbon from fly ash and its application for CO2 capture

Yahia Abobakor Alhamed,Sami Ullah Rather,Ahmad Hasan El-Shazly,Sharif Fakhruz Zaman,Mohammad Abdulrhaman Daous,Abdulrahim Ahmad Al-Zahrani 한국화학공학회 2015 Korean Journal of Chemical Engineering Vol.32 No.4

Power and desalination plants are one of the main anthropogenic sources for CO2 generation, which is oneof the key elements to cause greenhouse gas effect and thus contribute to the global warming. Fly ash (FA) generated indesalination and power plants was converted into activated carbon (AC) treated with KOH at higher temperature andtested for CO2 capturing efficiency. Morphological characteristics of FA such as BET specific surface area (SSA), porevolume, pore diameter, and pore size distribution (PSD) were performed using N2 adsorption isotherm. CO2 adsorptioncapacity and adsorption isotherms of CO2 over AC were measured by performing thermogravimetric analysis atdifferent temperatures. BET SSA of 161m2g−1 and adsorption capacity of 26mg CO2/g AC can be obtained by activationat KOH/FA ratio of 5 at 700 oC and activation time of 2 h. Therefore, great potential exists for producing AC fromFA, which will have the positive effect of reducing the landfill problem and global warming.