This investigation presents extensive computational analyses of the compressible flow near ramp injector with double circular injectors at supersonic combustor of scramjet engine. Comparison of the fuel mixing and fuel jet penetration of hydrogen jet are done for two injector configurations at free stream Mach number of 2. The simulation of the supersonic flow near ramp injector is done via solving RANS equations with computational fluid dynamic technique.
View Article and Find Full Text PDFUltrasound (US) is a promising tool for skeletal muscle assessment; however, US studies have scarcely focused on Arabic populations. This study examined the association of handheld US indicators and bioelectrical impedance analysis (BIA) parameters in healthy Arabic females. A cross-sectional study was conducted on 60 healthy Arabic females whose muscle thickness (MT) and cross-sectional area (CSA) of the rectus femoris (RF) were measured alongside their MT and pennation angle (PA) of the medial gastrocnemius (MG) muscle (both muscles on the dominant side).
View Article and Find Full Text PDFCloud-based personal health records increase globally. The GPOC series introduces the concept of a Global Patient co-Owned Cloud (GPOC) of personal health records. Here, we present the GPOC series' Prospective Register of Systematic Reviews (PROSPERO) registered and Preferred Reporting Items Systematic and Meta-Analyses (PRISMA)-guided systematic review and meta-analysis.
View Article and Find Full Text PDFRecent Adv Antiinfect Drug Discov
January 2024
Background: Plants are harmed by parasitic organisms, and toxic poisons are created. Phytopathogenic fungi create toxins that can severely harm plants' basic physiological functioning.
Objective: Investigation of antifungal impact of various fractions of methanol extract of to as a plant pathogen.
The use of bioelectrical impedance analysis (BIA) in clinical settings is common. However, the value of BIA-based parameters in diagnosing metabolic syndrome (MetS) in children is under-investigated. Herein, we aimed to study the usefulness of BIA-indices in the diagnoses of MetS in 6-10-year-old girls.
View Article and Find Full Text PDFObjectives: To evaluate the effect of altering vaginal pH on induction of labor in full-term pregnancies using Misoprostol.
Methods: This randomized controlled trial was conducted at Kasralainy Hospital, Cairo University, Egypt and Algezeera Hospital, Egypt. A total of 218 healthy term primigravida pregnant women who were scheduled for pregnancy termination were recruited in the study.
Objective(s): To assess efficacy and safety of self-administered 3 mg dinoprostone vaginally in reducing pain during copper intrauterine device (IUD) insertion in parous women.
Design: Randomized, double-blinded, placebo-controlled trial.
Setting: Family planning clinic in a tertiary referral hospital.
J Pediatr Adolesc Gynecol
October 2020
Study Objective: To compare the effectiveness of misoprostol and dinoprostone tablets administered vaginally 3 hours before copper intrauterine device (IUD) insertion vs placebo in reducing pain and increasing ease of insertion among nulliparous women.
Design: Randomized controlled trial.
Setting: Tertiary referral hospital.
Background: Artificial pancreas (AP) technology has been proven to improve glucose and patient-centered outcomes for people with type 1 diabetes (T1D). Several approaches to implement the AP have been described, clinically evaluated, and in one case, commercialized. However, none of these approaches has shown a clear superiority with respect to others.
View Article and Find Full Text PDFStudy Objective: To evaluate the efficacy of vaginal dinoprostone in reducing pain perception during diagnostic office hysteroscopy (OH) in postmenopausal women.
Design: Randomized, double-blind controlled trial.
Setting: Tertiary university hospital.
Objective: To synthesize the evidence on the most effective medications for the relief of intrauterine device (IUD) insertion-related pain.
Design: Systematic review and network meta-analysis of randomized controlled trials (RCTs).
Setting: Not applicable.
Timing of removal of the indwelling urinary catheter after elective cesarean delivery (CD) is controversial. Early removal could be associated with fewer urinary symptoms. This review aims to evaluate the evidence from published randomized clinical trials (RCTs) about the outcomes of early versus delayed removal of indwelling urinary catheter after elective cesarean delivery (CD).
View Article and Find Full Text PDFThis study evaluates the effects of mechanical cervical dilatation during scheduled cesarean section (CS) on intra- and postoperative blood loss. A single-center randomized double-blind controlled trial (NCT03444792) conducted at a tertiary University Hospital in the period between 1 April 2017 and 31 March 2018 included all women scheduled for scheduled CS under spinal anesthesia if they met our inclusion criteria. Eligible participants were randomized to one of two groups.
View Article and Find Full Text PDFPurpose: The aim of the study was to evaluate the effect of clomiphene citrate on uterine artery blood flow using pulsed Doppler and endometrial and subendometrial micro vascularization using 3D power Doppler in unexplained infertility.
Patients And Methods: In a prospective observational study at a university teaching hospital, the mid-luteal (peri-implantation) endometrial thickness and volume, uterine artery pulsatility index (PI) and resistance index (RI), endometrial and subendometrial vascularization index (VI), flow index (FI), and vascularization flow index (VFI), and serum estradiol and progesterone levels were compared between natural and clomiphene citrate stimulated cycles in the same group of 50 patients with unexplained infertility. Statistical analysis was done using paired -test to compare different study variables.
Background And Objective: Current prototypes of closed-loop systems for glucose control in type 1 diabetes mellitus, also referred to as artificial pancreas systems, require a pre-meal insulin bolus to compensate for delays in subcutaneous insulin absorption in order to avoid initial post-prandial hyperglycemia. Computing such a meal bolus is a challenging task due to the high intra-subject variability of insulin requirements. Most closed-loop systems compute this pre-meal insulin dose by a standard bolus calculation, as is commonly found in insulin pumps.
View Article and Find Full Text PDFThe objective of this study is to estimate the reference values for the number of fascicles and cross-sectional area (CSA) of the ulnar nerve at a single predetermined site by ultrasound in healthy young adult males.The demographic and physical characteristics of 50 adult male volunteers were evaluated and recorded. The subjects were positioned supine with the elbow flexed at 90° and the palm of the hand placed on a hard surface.
View Article and Find Full Text PDFBackground: Ultrasonography has been extensively used in women suspected of having a gynecological malignancy. The aim of this study is to evaluate the efficacy of 3D ultrasonography and power Doppler for discrimination between benign and malignant endometrium in premenopausal women with abnormal uterine bleeding.
Methods: This cross-sectional study included 78 premenopausal women with abnormal uterine bleeding scheduled for hysteroscopy and endometrial curettage.
Background: The Bio-inspired Artificial Pancreas (BiAP) is a closed-loop insulin delivery system based on a mathematical model of beta-cell physiology and implemented in a microchip within a low-powered handheld device. We aimed to evaluate the safety and efficacy of the BiAP over 24 hours, followed by a substudy assessing the safety of the algorithm without and with partial meal announcement. Changes in lactate and 3-hydroxybutyrate concentrations were investigated for the first time during closed-loop.
View Article and Find Full Text PDFEur J Obstet Gynecol Reprod Biol
October 2014
Objective: To compare immediate and 12h postoperative removal of urinary catheter after elective cesarean section.
Study Design: In a prospective clinical trial at a university teaching hospital, 300 eligible women admitted for primary or repeat elective cesarean section were randomized into two equal groups. In group A, the catheter was removed immediately after the procedure; whereas in group B, the catheter was removed 12h postoperatively.
Diabetes Technol Ther
September 2014
Background: This study assesses proof of concept and safety of a novel bio-inspired artificial pancreas (BiAP) system in adults with type 1 diabetes during fasting, overnight, and postprandial conditions. In contrast to existing glucose controllers in artificial pancreas systems, the BiAP uses a control algorithm based on a mathematical model of β-cell physiology. The algorithm is implemented on a miniature silicon microchip within a portable hand-held device that interfaces the components of the artificial pancreas.
View Article and Find Full Text PDFPrimary liposarcomas of the female and male breasts are very rare. Heterologous differentiation in adipocytic tumors is also an exceedingly rare phenomenon, which is occasionally reported in the literature. We describe the case of a 22 year-old female who presented with a relatively large left breast mass which was clinically diagnosed as a case of giant fibroadenoma, but histologically showed a well differentiated liposarcoma with evidence of extensive chondroid differentiation.
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