A modified trans-anconeus approach to facilitate fixation of a posterior radial head fracture: a cadaveric feasibility study

Ahmed Mohamed Desouky(Ahmed Mohamed Desouky ),Ahmed Naeem Atiyya(Ahmed Naeem Atiyya ),Mohamed Elbishbishi(Mohamed Elbishbishi ),Marwa Mohamed El Sawy(Marwa Mohamed El Sawy ) 대한해부학회 2023 Anatomy & Cell Biology Vol.56 No.1

Fixation of radial head fracture with minimally invasive posterior approach remains a significant challenge. The aim of this study was to determine the feasibility of trans-anconeus posterior elbow approach and to observe lateral ulnar collateral ligament (LUCL) in extended elbows. This cadaveric study was performed in twenty upper limbs of fresh fixed adult male cadavers. An oblique incision was made in the middle segment of anconeus until the lateral ligament complex and the joint capsule had been revealed. A deep dissection was explored to observe the anatomical relationship of the LUCL to the anconeus. Measurements of the LUCL were recorded while the elbow was fully extended. The mean distance between the edge of the radial head and the proximal insertion of the LUCL was 13.3 mm (11.5–16.2 mm); the mean distance between the edge of the radial head and the distal insertion of the LUCL was 20.9 mm (19.2–23.4 mm); the distance between the edge of the radial head and the distal edge of the annular ligament was 11.2 mm (8.22–11.7 mm). By estimate correlation of the previous measurements, the direct and accessible way to expose the posterolateral articular capsule of the elbow joint was through a window in medial 2/3 of the middle segment of anconeus muscle. These trans-anconeus approach is useful. It provides good visualization, facilitates applying the implants, and lessens the risk of radial nerve injury. Awareness of the anatomy is mandatory to avoid injury of LUCL.

The Role of Small and Medium Enterprises in Achieving Economic Goals of the Vision of Saudi Arabia 2030

Mohammed Ali Mohamed Ahmed ALI(Mohammed Ali Mohamed Ahmed ALI ),Ahmed Saied Rahama ABDALLAH(Ahmed Saied Rahama ABDALLAH ),SalimAhmed Mohamed AlSHEHRI(SalimAhmed Mohamed AlSHEHRI ) 한국유통과학회 2023 The Journal of Asian Finance, Economics and Busine Vol.10 No.2

This research aims to identify the role that small and medium enterprises (SMEs) can play in achieving the economic goals of the vision of Saudi Arabia 2030. The study relied on descriptive analysis, designing a standard model, and analyzing it using the Eviews9 program. The study also adopted the questionnaire as a tool for data collection. The study area covered Alkharj and Hawtat Bani Tamim governorates. The sample size of the study was 142 participants. The study’s results confirmed the existence of a significant impact of changes in independent variables (X1, X2, X3, X4), which are (GDP, non-oil exports, number of employees, and public revenues), respectively. The dependent variable (Y) represents the number of small and medium-sized businesses in the Kingdom of Saudi Arabia. Additionally, it was found that 61.3% of small and medium-sized enterprises in the governorates of Al-Kharj and Hawtat Bani Tamim operate in the commercial sector. Most study participants concur that SMEs significantly lowered the unemployment rate and helped boost the GDP rate in the Kingdom of Saudi Arabia. The obstacles and difficulties facing the establishment of these enterprises were financial problems, marketing problems, and corporate monopoly. Furthermore, most of the small and medium l enterprises faced financing problems.

Mohamed Mustafa Ahmed Younus: The Impact of the Environment on Child Language Acquisition

( Mohamed Mustafa Ahmed Younus ) 한국외국어대학교 중동연구소 2014 중동연구 Vol.33 No.1

Interested in the subject to study the impact of the environment surrounding the child in language acquisition, where it displays a summary of some of the environmental factors that speed up the acquisition of child language or slow down in it, to confirm that a child - any child - is able to acquire any language of humanity, only that the child live in a society linguist speaks this language, also confirmed that the mother had a significant impact very into it, especially in the early stages of a child, this may be impact positively or negatively on the role of the mother may be a mother too in dealing with her child, which adversely affect the acquisition of her language may be spoiled his impact and one in both of which, it is slow to gain a child`s language, but the ideal mother is doing its part with the child, where mating between the happiness of the child and the educated. The research aims to find the difference between language acquisition and learning. Language acquisition: a spontaneous process is carried out by the child inadvertently or choose, and be in the context of an informal language acquisition and their practice. The learning: it is a process in which the child deliberately optional collection of language in formal dress learns the rules of the language was intended for and awareness of, and directly. The research aims to find out the factors that help the child to language acquisition and development, and the role of environmental factors in the acquisition of language; the child and that he was prepared to acquire any language and has adequate tools to complete this process, as it has the inherent ability to acquire language, and has centers cerebral that qualify for it , and members of pronunciation which actually translate this ability, but it can never, to acquire the language that has the tools in advance, and is qualified to acquire, unless you lived in the linguistic environment enabled him to this acquisition. The research found some of the results of the most important: to prove that there is a difference between language acquisition and learning, and that there are factors that help the child to acquire language and its growth, the most important of the surrounding environment where the children have a significant impact on it.

Pectoral nerve blocks for transvenous subpectoral pacemaker insertion in children: a randomized controlled study

Elhaddad Ahmed Mohamed,Hefnawy Salwa Mohamed,El-Aziz Mohamed Abd,Ebraheem Mahmoud Mostafa,Mohamed Ahmed Kareem 대한마취통증의학회 2023 Korean Journal of Anesthesiology Vol.76 No.5

Background: Postoperative pain management after pacemaker insertion routinely requires opioid agents, nonsteroidal anti-inflammatory drugs, or paracetamol. However, interest in opioid-sparing multimodal pain management to minimize postoperative narcotic use has increased recently. This study aimed to assess the pectoral nerve (PECS) block versus standard treatment on postoperative pain control and opioid consumption in pediatric patients after transvenous subpectoral pacemaker insertion.Method: In this randomized controlled study, 40 pediatric patients underwent transvenous subpectoral pacemaker insertion with either congenital or postoperative complete heart block. Patients were randomly assigned to two groups: Group C (control) received conventional analgesic care without any block and Group P (pectoral) received a PECS block. Demographics, procedural variables, postoperative pain, and postoperative opioid consumption were compared between the two groups.Results: In children undergoing transvenous subpectoral pacemaker insertion, the PECS block was associated with a longer procedure time; however, the cumulative dose of fentanyl and atracurium was reduced and the hemodynamic profile was superior in Group P compared with Group C intraoperatively. Postoperatively, the PECS block was associated with lower postprocedural pain scores, which was reflected by the longer interval before the first call for rescue analgesia and lower postoperative morphine consumption, without an increase in the rate of complications.Conclusion: Ultrasound-guided PECS blocks are associated with a good intraoperative hemodynamic profile, reduced postoperative pain scores, and lower total opioid consumption in children undergoing transvenous subpectoral pacemaker placement.

Interferon-γ and Interleukin-10 Gene Polymorphisms are not Predictors of Chronic Hepatitis C (Genotype-4) Disease Progression

Bahgat, Nermine Ahmed,Kamal, Manal Mohamed,Abdelaziz, Ashraf Omar,Mohye, Mohamed Ahmed,Shousha, Hend Ibrahim,ahmed, Mae Mohamed,Elbaz, Tamer Mahmoud,Nabil, Mohamed Mahmoud Asian Pacific Journal of Cancer Prevention 2015 Asian Pacific journal of cancer prevention Vol.16 No.12

Immunoregulatory cytokines have an influence on hepatitis C virus (HCV) infection outcome. This study aimed to determine whether single nucleotide polymorphisms (SNP) in IFN- ${\gamma}$ and IL-10 genes are associated with susceptibility and/or are markers of prognosis regarding chronic hepatitis C outcomes. IFN ${\gamma}$ (+874T/A) and IL-10 (-1082G/A) genotypes were determined in 75 HCV genotype 4 patients with different disease severities (chronic hepatitis, n=25, liver cirrhosis and hepatocellular carcinoma (HCC) on top of liver cirrhosis, n=50) and 25 healthy participants using allele-specific polymerase chain reaction. No statistical differences in allele or genotype distributions of IFN ${\gamma}$ and IL-10 genes were detected between patients and controls or between patientgroups. No significant difference in the frequency of IL-10 SNP at position -1082 or IFN-${\gamma}$ at position +874T/A was found between chronic HCV genotype 4 and with progression of disease severity in liver cirrhosis or HCC. In conclusion; interferon-${\gamma}$ and interleukin-10 gene polymorphisms are not predictors of disease progression in patients with chronic hepatitis C (Genotype-4).

Analysis of crack occurs under unsteady pressure and temperature in a natural gas facility by applying FGM

Mohamed A. Eltaher,Mohamed A. Attia,Ahmed E. Soliman,Amal E. Alshorbagy 국제구조공학회 2018 Structural Engineering and Mechanics, An Int'l Jou Vol.66 No.1

Cracking can lead to unexpected sudden failure of normally ductile metals subjected to a tensile stress, especially at elevated temperature. This article is raised to study the application of a composite material instead of the traditional carbon steel material used in the natural gas transmission pipeline because the cracks occurs in the pipeline initiate at its internal surface which is subjected to internal high fluctuated pressure and unsteady temperature according to actual operation conditions. Functionally graded material (FGM) is proposed to benefit from the ceramics durability and its surface hardness against erosion. FGM properties are graded at the radial direction. Finite element method (FEM) is applied and solved by ABAQUS software including FORTRAN subroutines adapted for this case of study. The stress intensity factor (SIF), temperatures and stresses are discussed to obtain the optimum FGM configuration under the actual conditions of pressure and temperature. Thermoelastic analysis of a plane strain model is adopted to study SIF and material response at various crack depths.

Optimum Controller Design Using the Ant Lion Optimizer for PMSG Driven by Wind Energy

Ahmed Lotfy Haridy,Al-Attar Ali Mohamed Abdelbasset,Ashraf Mohamed Hemeida,Ziad Mohamed Ali Elhalwany 대한전기학회 2021 Journal of Electrical Engineering & Technology Vol.16 No.1

The wind energy characteristics at the site not only indicate the amount of energy obtained from wind energy, but it also depends on the control strategy implemented on the wind energy conversion system. This study proposes an application of Ant Lion Optimizer (ALO) for tuning the classical (PI) controller parameters for the permanent magnet synchronous generator driven by wind energy system, to such an extent that the most maximum power point tracking can be acknowledged along with an improved fault ride-through capability. The optimized PI-controller parameters based ALO improving the low voltage ride through (LVRT) performance and the maximum power point tracking. ALO is implemented to the classical PI-controller on the machine side converter system, and grid side converter, for maximum power extraction from PMSG and enhancing LVRT. Four cases were considered in this paper, to examine the feasibility of the proposed ALO-PI controller. The suggested cases are system running at normal condition, a step-change in wind speed, wind speed variation at normal grid condition, and three-phase fault. A signifi cant improvement in the system dynamic performance when applying the ALO-PI controller is compared with classical PI-controller.

A Comparative Study on Transformational Grammar between Egyptian Dialects and Modern Standard Arabic : A Study on Simple Sentences

Mohamed Moustafa Ahmed Younes(م,ح,م,د,م,ص,ط,ف,ى,أ,ح,م,د,ي,و,ن,س,) 명지대학교 중동문제연구소 2016 중동문제연구 Vol.15 No.3

This paper aims to study transformational grammar in Egyptian dialects and compare it with Modern Standard Arabic(MSA) while highlighting areas of agreement and differences between them. It is also a historical analysis on the development of modern Egyptian dialects, and a clarification of the characteristics of these developments through the study and comparison of the simple sentences in Egyptian dialects and Modern Standard Arabic using examples from the holy Quran and ancient Arabic poetry to verify its authenticity as well as Arab compositions related to the field of modern and ancient Arabic grammar. This study was conducted within a historical and comparative framework to allude to the historical development that took place in these dialects.

Nonlinear transient analysis of FG pipe subjected to internal pressure and unsteady temperature in a natural gas facility

Ahmed E. Soliman,Mohamed A. Eltaher,Mohamed A. Attia,Amal E. Alshorbagy 국제구조공학회 2018 Structural Engineering and Mechanics, An Int'l Jou Vol.66 No.1

This study investigates the response of functionally graded (FG) gas pipe under unsteady internal pressure and temperature. The pipe is proposed to be manufactured from FGMs rather than custom carbon steel, to reduce the erosion, corrosion, pressure surge and temperature variation effects caused by conveying of gases. The distribution of material graduations are obeying power and sigmoidal functions varying with the pipe thickness. The sigmoidal distribution is proposed for the 1st time in analysis of FG pipe structure. A Two-dimensional (2D) plane strain problem is proposed to model the pipe cross-section. The Fourier law is applied to describe the heat flux and temperature variation through the pipe thickness. The time variation of internal pressure is described by using exponential-harmonic function. The proposed problem is solved numerically by a two-dimensional (2D) plane strain finite element ABAQUS software. Nine-node isoparametric element is selected. The proposed model is verified with published results. The effects of material graduation, material function, temperature and internal pressures on the response of FG gas pipe are investigated. The coupled temperature and displacement FEM solution is used to find a solution for the stress displacement and temperature fields simultaneously because the thermal and mechanical solutions affected greatly by each other. The obtained results present the applicability of alternative FGM materials rather than classical A106Gr.B steel. According to proposed model and numerical results, the FGM pipe is more effective in natural gas application, especially in eliminating the corrosion, erosion and reduction of stresses.

Camellia sinesis leaves extract ameliorates high fat diet-induced nonalcoholic steatohepatitis in rats: analysis of potential mechanisms

Mohamed Safaa H.,Shahat Abdelaaty A.,Mohamed Mohamed Ragaa,Khalil Wagdy K. B.,Salem Ahmed M.,Farrag Abdel Razik H.,Ahmed Hanaa Hamdy 한국약제학회 2021 Journal of Pharmaceutical Investigation Vol.51 No.2

Purpose Our research aims to address and determine the effect of Camellia sinensis extract in the management of nonalcoholic steatohepatitis (NASH) in rats. Methods Forty adult female albino rats were divided into four groups. Group 1 (G1) served as the control group, while the other three groups received high-fat diet for 32 weeks to induce NASH and then were later assigned to the following groups: (G2) NASH-afflicted group which was left untreated, (G3) NASH-afflicted group treated with Camellia sinensis extract in a dose of 400 mg/kg, and (G4) NASH-afflicted group treated with Camellia sinensis extract in a dose of 200 mg/kg. Results Significant elevation in serum alanine aminotransferase, albumin, bilirubin (total and direct), cholesterol, low density lipoprotein, triglycerides, leptin, Cox-2, and CD40 values was recorded. Moreover, overexpression of hepatic tumor necrosis factor alpha and hepatocyte growth factor genes were recorded, whereas blood platelet count and serum high density lipoprotein concentration revealed significant depletion, which was paralleled by significant downregulation of hepatic adiponectin gene expression level in NASH group versus the control group. On the opposite side, treatment of NASH groups with two different doses of Camellia sinensis extract reversed the values of the measured biochemical parameters and the targeted gene expression levels when compared with the NASH group. Optical micrograph of liver tissue sections of rats treated with Camellia sinensis extract showed the observed improvement in the studied biochemical and genetic markers. Conclusion This study provides a clear evidence for the promising therapeutic potential of Camellia sinensis extract against NASH. This could be ascribed to its hepatoprotective activity, hypolipidemic effect, and anti-inflammatory potency.