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Search Results: 1 - 10 of 404139 matches for " Mustafa M. Khodry "
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Role of Dehydroepiandrosterone Supplementation in Improving Intracytoplasmic Sperm Injection Outcome for Women with Expected Poor Ovarian Response  [PDF]
Abd El-Naser Abd El-Gaber Ali, Mustafa M. Khodry
Open Journal of Obstetrics and Gynecology (OJOG) , 2019, DOI: 10.4236/ojog.2019.93036
Abstract: Background: As regard to adjuvant supplementations, nowadays dehydroepiandrosterone (DHEA) is widely used all over the world and is considered to be a potential agent to ameliorate the assisted reproduction technologies outcomes of infertile women with poor ovarian reserve. Objective: To find out the role of DHEA supplementation in improving intracytoplasmic sperm injection (ICSI) outcome for infertile women with expected poor ovarian response in controlled ovarian stimulation. Setting: Assisted reproduction unit of Obstetrics and Gynecology Department, Faculty of Medicine, South Valley University, Egypt. Duration: From April 2016 to May 2018. Study Design: A randomized double-blinded controlled trial. Methods: One hundred and forty infertile women with expected poor ovarian response prepared for ICSI procedure were included in this study. Patients were divided into two groups; group I (DHEA group) included 70 patients received 25 mg DHEA 12 weeks prior to ICSI cycle and group II (placebo group) included 70 patients received a placebo. Results: There was a highly statistically significant difference in basal AFC at start of ICSI cycle in group I (who received DHEA supplementation for 12 weeks prior to ICSI procedure) than in group II (13.8 ± 5.3 versus 10.7 ± 4.6 respectively) with P < 0.001. There were mildly statistically significant differences between group I and group II as regard to increase in the number and quality of retrieved oocytes, increased in endometrial thickness, fertilization rate and embryo quality with p value < 0.05 but there was no statistically significant difference between the 2 groups as regard to pregnancy (chemical and clinical) rates (p value > 0.05).
Could Bladder Inflation Prior to Cesarean Section Prevent Urinary Tract Injury in High Risk Group? A Randomized Controlled Trial  [PDF]
Abd El-Naser Abd El-Gaber Ali, Mohammad A. M. Ahmed, Mustafa M. Khodry, Ahmed M. Abbas
Open Journal of Obstetrics and Gynecology (OJOG) , 2019, DOI: 10.4236/ojog.2019.92021
Abstract: Background: Accidental urinary tract particularly bladder injury during cesarean delivery has a significant maternal morbidity, as it may lead to extended operative time, infection of urinary tract and sometimes development of urinary tract fistulae. Objective: To find out the efficacy of urinary bladder inflation immediately prior to cesarean section (CS) procedure in minimizing incidence of accidently urinary tract injury in high risk patients. Setting: Obstetrics and Gynecology Department, Faculty of Medicine, South Valley University, Qena, Egypt. Duration: From August 2017 to November 2018. Study Design: A prospective randomized controlled trial. Methods: Seventy six pregnant women recruited from attendants of outpatient antenatal care unit of obstetrics and gynecology department who planned for cesarean delivery and carried one or more risk factors for urinary tract injury. Patients randomly were classified into 2 groups (group I included 38 cases, underwent bladder inflation using triple way Foley’s catheter immediately before CS and group II included 38 cases, and underwent bladder deflation with 2 ways Foley’s catheter immediately before CS. Results: The overall incidence of urinary tract injury was significantly higher in group II (7 cases = 18.4%) than in group I (2 cases = 5.2%) with
Effect of Vitamin D Supplementation on Intracytoplasmic Sperm Injection Outcomes: A Randomized Double-Blinded Placebo-Controlled Trial  [PDF]
Ahmed H. Abd-Ellah, Abd El-Naser Abd El-Gaber Ali, Mustafa M. Khodry, Mahmoud I. El-Rasheedy, Ahmed M. Abbas
Open Journal of Obstetrics and Gynecology (OJOG) , 2018, DOI: 10.4236/ojog.2018.814155
Abstract: OBJECTIVE: To assess the effect of vitamin D supplementation on enhancement of embryos implantation rates in intracytoplasmic sperm injection procedures. STUDY DESIGN: A randomized double-blinded controlled trial. SETTING: Assisted Reproduction Unit of Obstetrics and Gynecology Department, Faculty of Medicine, South Valley University, Egypt. DURATION: From December 1st 2017 to the end of October 2018. SUBJECTS and METHDS: Eighty infertile couples that underwent ICSI procedure were entrapped in this study. Patients were divided into two groups; Group I (Vitamin D group) = 40 patients (received vitamin D supplementation in the form of Vidrop oral drops 600 IU/day starting after ovum pickup) and Group II (placebo group) = 40 patients (received a placebo “normal saline oral drop”). RESULTS: There was a significantly increased embryo implantation rates (53.2% in vitamin D group versus 46.7% in placebo group), there was a mild statistically significant difference in the
Assessment of Sub-Endometrial Junction Zone by 3-Dimensional Transvaginal Ultrasound in Unexplained Recurrent Implantation Failure and Its Effect on ICSI Outcomes  [PDF]
Abd El-Naser Abd El-Gaber Ali, Syed A. Taha, Mohammed F. Abd El-Ghany, Mustafa M. Khodry, Ahmed M. Abbas
Open Journal of Obstetrics and Gynecology (OJOG) , 2019, DOI: 10.4236/ojog.2019.91006
Abstract: BACKGROUND: Sub-endometrial junction zone (JZ) plays an important role in most of reproductive functions. OBJECTIVE: To find out the effect of the sub-endometrial JZ thickness assessment by 3-D trans-vaginal ultrasound (TVUS) on intracytoplasmic sperm injection (ICSI) outcomes in patients with unexplained recurrent implantation failure (RIF). SETTING: ART Unit of Obstetrics and Gynecology Department, Faculty of Medicine, South Valley University, Qena, Egypt. DURATION: From April 2016 to October 2018. STUDY DESIGN: A prospective observational study. METHDS: Fifty couples with history of unexplained RIF in previous ICSI cycles and prepared for another ICSI cycle (group I)
Modified Triple P Approach by Gynecologic Oncologist-Led Team for Placenta Accreta Spectrum Improves the Outcome: Non-Randomized Controlled Trial  [PDF]
Mohammad Am Ahmed, Mostafa M. Khodry
Open Journal of Obstetrics and Gynecology (OJOG) , 2019, DOI: 10.4236/ojog.2019.97101
Abstract: Introduction: Placenta Accreta Spectrum (PAS) is associated with significant maternal and fetal morbidity and mortality. The ideal conservative management still does not exist. We aimed to compare the outcome of cesarean section for PAS by a gynecologic oncologist-led team using the modified triple P approach and by a non-gynecologic oncologist-led team. Material and Methods: This is non-randomized controlled trial. Group A had Cesarean Section by gynecologic oncologist. Gynecologic oncologist-led team did all Cesarean Section following a modified triple P approach. The first P is for “Plan” the uterine incision. The second P for “Pelvic” devascularization by internal iliac artery ligation. The third P is for Placenta non-separation with resection of the myometrium. Group B had Cesarean Section by non-gynecologic oncologist-led team. The main outcome measures were the need for hysterectomy, amount of blood loss, and the management-related complications. Results: Group A had significantly less estimated blood loss, and received less number of backed RBCs units, and less operative time than group B. The uterus is preserved in all cases of group A and in 50% of cases of group B. The overall maternal morbidity rate was 17.5% in group A and 72.2% in group B. Conclusion: This study provides evidence that the modified triple P approach for PAS by gynecologic oncologist-led team presents lower maternal morbidity in comparison to surgery by non-gynecologic oncologist-led team.
Availability Equivalence Factors of a General Repairable Parallel-Series System  [PDF]
Abdelfattah Mustafa, Ammar M. Sarhan
Applied Mathematics (AM) , 2014, DOI: 10.4236/am.2014.511164
Abstract:

The availability equivalence factors of a general repairable parallel-series system are discussed in this paper considering the availability function of the system. The system components are assumed to be repairable and independent but not identical. The life and repair times of the system components are exponentially distributed with different parameters. Two types of availability equivalent factors of the system are derived. The results derived in this paper generalize those given in the literature. A numerical example is introduced to illustrate how the idea of this work can be applied.

Influence of Ca Content on Binding Energy and Cooper Pairing in Y1-xCaxBa2Cu3O7-δ Compound  [PDF]
Bassam M. Mustafa, Abbas H. Rostam
World Journal of Condensed Matter Physics (WJCMP) , 2015, DOI: 10.4236/wjcmp.2015.51003
Abstract: In this research, the influence of calcium content on the binding energy and Cooper pairing is investigated for the high temperature superconducting Y1-xCaxBa2Cu3O7-δ compound where x = 0 - 0.2). This is done by using model considering that the formation of Cooper pairs happens during tunneling mechanism of holes between the two CuO2 layers in the YCBCO crystal which are considered as forming adjacent potential wells. In this work, we make some modifications on the mentioned model and a modified equation for the binding energy as a function of Ca concentration is formulated to study the effect of Ca content by considering the change in the distance between the CuO2 layer as a function of Ca. The calculated results agree very well with experimental results. This happens because the Ca2+ substitution for Y3+ leads to decreasing the distance between the two CuO2 layers and hence potential energy of the system will be decreased. This leads to decreasing the binding energy between the Cooper pairs, and decreasing the distance between the two CuO2 layers increasing the tunneling probability of holes between the two CuO2 layers and thus increasing conduction mechanism and thus increasing current density, but this will decrease the energy gap and as a result decrease the critical temperature. The calculated results agree very well with experimental results.
The Odd Generalized Exponential Gompertz Distribution  [PDF]
M. A. El-Damcese, Abdelfattah Mustafa, B. S. El-Desouky, M. E. Mustafa
Applied Mathematics (AM) , 2015, DOI: 10.4236/am.2015.614206
Abstract: In this paper we propose a new lifetime model, called the odd generalized exponential gompertz distribution. We obtained some of its mathematical properties. Some structural properties of the new distribution are studied. The method of maximum likelihood is used for estimating the model parameters and the observed Fisher’s information matrix is derived. We illustrate the usefulness of the proposed model by applications to real data.
Experimental Study of a Solar Adsorption Refrigeration Unit, Factorial Analysis  [PDF]
Ghassan M. Tashtoush, Bourhan M. Tashtoush, Mustafa M. Jaradat
Smart Grid and Renewable Energy (SGRE) , 2012, DOI: 10.4236/sgre.2012.32018
Abstract: An experimental study was performed on an adsorption refrigeration unit powered by a solar energy and equipped with three different types of activated carbon (1: Coconut, 2: Palm seeds 3: charcoal). In this Study design, factorial analysis and optimization of a prototype unit were described. The activated carbon coupled with methanol was used as an adsorbent-adsorbate pairs. Experimental tests were carried out on an adsorptive solar-powered refrigerator for the three pairs. The temperatures of the bed of each adsorber and the corresponding refrigerator temperature for both the adsorption and desorption cycles respectively were recorded and studied as a response. Then a factorial analysis was carried out considering the type of activated carbon and the times interval as factors. The results showed that coconut have the highest bed temperature during the day cycle with a mean of 77.5℃ and the lowest mean temperature during the night cycle with a mean of 12.9℃. In addition, it was found from the analysis that the coconut shell activated carbon has the highest coefficient of performance of 0.25.
The Role of Sputtering Current on the Optical and Electrical Properties of Si-C Junction  [PDF]
Mohammad M. Uonis, Bassam M. Mustafa, Anwar M. Ezzat
World Journal of Nano Science and Engineering (WJNSE) , 2014, DOI: 10.4236/wjnse.2014.42012
Abstract:
The effect of sputtering current that flow in a carbon rod on the structural and transport properties of Si-C junction is studied. Si-C junction is fabricated by plasma sputtering in Argon gas atmosphere without catalysts with thickness of 20, 40 and 60 nm. Images of the specimen by scanning electron microscope (SEM) and atomic force microscope (AFM) show that the carbon layer is as carbon nanotubes with diameters about 20 - 30 nm. X-ray and Raman spectrums show peak characteristics of the carbon nanotubes, the G and D bands appear for all thicknesses indicating free of defect carbon nanotubes. Two parameters about the thickness of the carbon layer and the sputtering current for different thicknesses and currents were studied. Nanotubes evidence was clear. We noticed that the sputtering current and thickness of layers affect the structure of CNT layer leading to the formation of grains. Increasing plasma current led to decrease grain formation however increasing thickness ends to increase grain size; moreover it led to amorphous structure formation and this was proved through X-ray, Raman spectra and AFM images.
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