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Potential Zoonotic Trematodes Recovered in Stray Cats from Kuwait Municipality, Kuwait
Osama Mohamed ElShfei El-Azazy,Nadra-Elwgoud Mohamed Ibrahim,Amal Iskander Khalil,Maha Khaled Al-Batel,Qais Abdulrazak Habeeb Majeed,Adawia Abdul-Ruhman Henedi,Laila Mohamed Azad Tahrani 대한기생충학열대의학회 2015 The Korean Journal of Parasitology Vol.53 No.3
Osama Mohamed Ahmed Salem,Mohammed bin Muthayb Al-Baqami International Journal of Computer ScienceNetwork S 2023 International journal of computer science and netw Vol.23 No.2
This research aimed at investigating Islamic Studies teachers' attitudes towards utilizing virtual learning environment in distance teaching among primary stage pupils. It also aimed at determining the statistical differences among variables due to sex, educational qualification, number of years of experience, and training sessions. This research adopted the descriptive approach. The sample consisted of male and female primary teachers of Islamic Studies (N=250) in governmental schools in Taif. The questionnaire was used as a main research tool. It included (20) items. Results showed that Islamic Studies teachers' attitudes towards utilizing virtual learning environment in distance teaching among primary stage pupils were ranked to a medium degree. There was a statistically significant difference among primary Islamic Studies teachers' attitudes due to sex variable. It was recommended to adopt more training sessions and seminars for adopting the idea of utilizing virtual learning environments among Islamic Studies teachers at boys' and girls' school in Mecca through emphasizing its significance and benefits in Teaching.
Two-Stages Sliding Fourier Transform for High Performance Phase Angle and Frequency Tracking
Osama Mohammed Arafa 대한전기학회 2020 Journal of Electrical Engineering & Technology Vol.15 No.5
Sliding discrete Fourier transform (SDFT) gives excellent performance at nominal frequency operation. However, at off - nominal frequency, it generates errors in both magnitude and phase angle due to spectral leakage. Moreover, its harmonic rejection ability is greatly impaired in this case. This paper introduces a method to apply sliding Fourier transform under off -nominal frequency at fi xed sampling rate while fi xing the defects associated with it off -nominal frequency operation. This method involves the use of two stages sliding Fourier transform (SFT). A fi xed window-width SFT in the fi rst stage is used to drive the variable window-width SFT in the second stage. The proposed technique (SFT–SFT) is tested in real time on dSPACE MicroLabBox using pre-generated voltage vectors to simulate the most inconvenient grid conditions. The testing scenarios proved its superior performance compared to the decoupled stationary reference frame PLL method.
Aya Osama Mohammed,Hanaa I. Rady 대한중환자의학회 2024 Acute and Critical Care Vol.39 No.1
Background: Extracorporeal blood-purification techniques are frequently needed in the pediatric intensive care unit (PICU), yet data on their clinical application are lacking. This study aims to review the indications, rate of application, clinical characteristics, complications, and outcomes of patients undergoing extracorporeal blood purification (i.e., by continuous renal replacement therapy [CRRT] or therapeutic plasma exchange [TPE]) in our PICU, including before the coronavirus disease 2019 (COVID-19) pandemic in 2019 and during the pandemic from 2020–2022. Methods: This study included children admitted for extracorporeal blood-purification therapy in the PICU. The indications for TPE were analyzed and compared to the American Society for Apheresis categories. Results: In 82 children, 380 TPE sessions and 37 CRRT sessions were carried out children, with 65 patients (79%) receiving TPE, 17 (20.7%) receiving CRRT, and four (4.8%) receiving both therapies. The most common indications for TPE were neurological diseases (39/82, 47.5%), followed by hematological diseases (18/82, 21.9%). CRRT was mainly performed for patients suffering from acute kidney injury. Patients with neurological diseases received the greatest number of TPE sessions (295, 77.6%). Also, the year 2022 contained the greatest number of patients receiving extracorporeal blood-purification therapy (either CRRT or TPE).Conclusions: The use of extracorporeal blood-purification techniques increased from 2019 through 2022 due to mainly autoimmune dysregulation among affected patients. TPE can be safely used in an experienced PICU. No serious adverse events were observed in the patients that received TPE, and overall survival over the 4 years was 86.5%.
Improved Active Power Filter Performance Based on an Indirect Current Control Technique
Mohamed Adel,Sherif Zaid,Osama Mahgoub 전력전자학회 2011 JOURNAL OF POWER ELECTRONICS Vol.11 No.6
This paper presents a method for the performance improvement of a shunt active power filter (SAPF) using the indirect current control (ICC) scheme. Compared to the conventional direct current control (DCC) scheme, the ICC gives better performance with a lower number of sensors. A simplified and efficient control algorithm using a low cost Intel 80C196KC microcontroller is implemented using only two current sensors for the source current and one voltage sensor for the DC-link voltage of the SAPF circuit. The objective is to eliminate harmonics and to compensate the reactive power produced by non-linear loads such as an uncontrolled rectifier feeding an inductive load. The APF is realized using a three phase voltage source inverter (VSI) with a dc bus capacitor. Experimental results are presented to prove the better performance of the ICC method over the DCC one.
Urodynamic Detrusor Overactivity in Patients with Overactive Bladder Symptoms
Mohammed A. Al-Ghazo,Ibrahim Fathi Ghalayini,Rami Al-Azab,Osama Bani Hani,Yousef S. Matani,Yazan Haddad 대한배뇨장애요실금학회 2011 International Neurourology Journal Vol.15 No.1
Purpose: To evaluate the relationship between urodynamic detrusor overactivity (DO) and overactive bladder (OAB) symptoms in men and women. Methods: We reviewed the records of adult males and females who attended a tertiary referral center for urodynamic evaluation of OAB syndrome symptoms with the presence or absence of DO. DO was calculated for symptoms alone or in combination. Results: The overall incidence of DO was 76.1% and 58.7% in male and female OAB patients, respectively. Of men 63% and 61% of women with urgency (OAB dry) had DO, while 93% of men and 69.8% of women with urgency and urgency urinary incontinence (OAB wet) had DO. Of women, 58% who were OAB wet had stress urinary incontinence symptoms with 26.4% having urodynamic stress incontinence. 6% of men and 6.5% of women with OAB symptoms had urodynamic diagnosis of voiding difficulties with postvoid residual greater than 100 mL. Combination of symptoms is more accurate in predicting DO in OAB patients. The multivariate disease model for males included urge urinary incontinence (UUI) and urgency while for females it included UUI and nocturia. Conclusions: There was a better correlation in results between OAB symptoms and the urodynamic diagnosis of DO in men than in women, more so in OAB wet than in OAB dry. Combination of symptoms of the OAB syndrome seems to have a better correlation with objective parameters from the bladder diary, filling cystometry, and with the occurrence of DO.
Osama Eldamshety,Sherif Kotb,Ashraf Khater,Waleed Elnahas,Sameh Roshdy,Mohamed S. Zahi,Hend M.H. Rashed Elkalla,Omar Farouk,Ahmed Senbel,Adel Fathi,Emad-Eldeen Hamed,Khaled Abdelwahab,Islam A. Elzahby 대한대장항문학회 2020 Annals of Coloproctolgy Vol.36 No.3
Purpose: The study aims to assess the functional outcome of anal sphincter-sparing procedures (SSP) with total mesorectal excision (TME) for anorectal adenocarcinoma. Methods: In a multicentric, prospective, single-group study in the period between December 2012 and November 2017, 93 patients presented with anorectal adenocarcinoma were included in the study. Sixty-nine patients underwent SSP with TME. SSP included the combined approach of transabdominal TME with intersphincteric resection (ISR) or transanal transabdominal TME. Using the per anal examination scoring system (PASS), postoperative anal function was assessed after 1 year. Results: Bowel motility time was 50±19 hours. The time needed for narcotic analgesia was 54±18.8 hours. Mean hospital stay was 15.4±10.25 days. Incidence of evident fecal incontinence after ISR is 10.6% (7 of 67 cases). The PASS findings of 69 cases are as follows: extremely hypotonic 8.6% (6 cases), slightly hypotonic 26.1% (18 cases), normal tone 58% (40 cases), slightly stenotic 3 cases (4.3%), or occluded 2.9% (2 cases). Urinary dysfunction occurred in 1 case (1.4%). Temporary diversion was performed in 61 patients (87.1%). Conclusion: Sphincter preservation with TME for anorectal adenocarcinoma helps avoid permanent stoma and provides reasonable functional outcomes. PASS is a new application for postoperative assessment of anal function.
Osama Mohamed Ahmed Salem,Noheir Taha Hassan Mohamed International Journal of Computer ScienceNetwork S 2023 International journal of computer science and netw Vol.23 No.1
The research aimed to identify the effectiveness of an educational program using 3D glasses as a technological innovation on academic achievement and attitude towards elearning in science in the preparatory stage. The research relied on the analytical descriptive approach and the semi-experimental approach. The research tools were the achievement test and the scale of attitude towards e-learning. An educational program was designed and produced using 3D glasses. The study sample consisted of 60 students from the second grade in the preparatory stage at the Rural Jeddah School. The research concluded to the following results: There was a satistically sigificant difference at the level of sig. (0.05) among the -mean scores of the experiemtal and control group students in the post assessment atthe level of achievement in favor of the experiemental group and therewas a satistically sigificant difference at the level of sig. (0.05) among mean scores of the experiemtal and control group students in the post assessment at the level of attitude towards e-learning in favor of the experiemental group. And it was found that the positive effect of the 3D educational program for improving the level of achievement and the attitude towards e-learning for the students. The program allowed the experimental group students to practice self-learning, interaction, and achievement according to the individual differences among them.
Mohamed Mimi Abd Elgawwad El-kholey,Ghada El-said Ibrahim,Osama Ibrahim Elshahat,Ghada El-kannishy 대한내분비학회 2019 Endocrinology and metabolism Vol.34 No.4
Background: Impairment of quality of life (QOL) is a key clinical characteristic of patients with end-stage renal disease (ESRD),and can be especially severe in the presence of secondary hyperparathyroidism (SHPT). Despite the proven success of parathyroidectomy (PTX) in controlling biochemical parameters in patients with severe SHPT, evidence is lacking regarding the effects of PTXon various clinical outcomes, including QOL. Methods: Twenty ESRD patients on maintenance hemodialysis with SHPT who underwent subtotal PTX were included in an observational longitudinal study. All studied patients underwent history-taking, clinical examinations, and laboratory investigations, including a complete blood count and measurements of serum calcium, phosphorus, magnesium, parathyroid hormone (PTH), and albumin levels preoperatively and at 3 months postoperatively. QOL was assessed before surgery and at 3 months after surgery usingthe Kidney Disease Quality of Life 36-Item Short-Form instrument. Results: After PTX, significant decreases in serum PTH and phosphorus levels were observed, as well as a significant increase inserum magnesium levels. Significant weight gain and improvements of QOL were also detected postoperatively. Conclusion: Subtotal PTX seems to be an efficient alternative to medical management in uncontrolled cases of SHPT, as it is capable of controlling the biochemical derangements that occur in hyperparathyroidism. Furthermore, PTX had a beneficial effect onclinical outcomes, as shown by weight gain and improvements in all QOL scales.