Diaphragmatic Plication for Acquired Phrenic Nerve Injury after Congenital Cardiac Surgeries

Background: Phrenic nerve injury and diaphragmatic dysfunction are common after pediatric cardiac surgery leading to failure to wean from ventilatory support. Diaphragmatic plication is the standard management of diaphragmatic paralysis. The aim of this retrospective study is to review our experience with diaphragmatic plication and its effect on the operative outcome. Methods: This retrospective cohort study included all patients who underwent diaphragmatic plication from June 2010 to June 2017. Seventy-six patients (2.87%) had unilateral diaphragmatic paralysis following 2646 congenital cardiac procedures. Sixty-four patients (2.4%) underwent diaphragmatic plication. Results: The median age for the patients who had plication was 2.75 months (range 0.5- 36) and 3.7 months (range 0.66 to 123) for non-plicated patients. Thirty-six were males (56.25%), and the most common procedure associated with diaphragmatic plication was modified Blalock Taussig Shunt (n= 13; 20.3%). Left-sided diaphragmatic plication was performed in 44 patients (68.7%). The mean time between the primary surgery and diaphragm plication was 6.42±4.51 days. The mean ventilation period before plication was 4.93±3.71 days, and post plication ventilation median time was 2.11±1.82 days. Two patients (3.1%) required tracheostomy for prolonged respiratory insufficiency. One patient (1.6%) needed surgical revision, and two patients (3.1%) had their diaphragmatic plication during the initial surgery. Conclusion: Diaphragmatic plication is an effective procedure in the management of postoperative diaphragmatic paralysis. We recommend early plication for patients with symptomatic diaphragmatic paralysis causing prolonged ventilatio

Leadership Competencies and Competitive Advantage "Empirical Study on Jordan Telecommunications"

This study examines the impact of leadership competencies on competitive advantage in the Jordanian telecommunications industry (JTI). The population of the study consisted of all working companies in the (JTI). A simple random sampling technique was used to select (2) working companies out of (3). The unit of analysis who surveyed for this study were the middle line departments' mangers, supervisors and team leaders, a total of 120 questionnaires were administered to respondents; statistical tools were used to test the hypothesis such as: one way ANOVA and simple regression. The Study revealed that leadership competences had a significant impact at level of (P? 0.05) on competitive advantage by the Jordanian telecommunication companies in the Jordanian market, as well an existence relationship between leadership competences and competitive advantage. Also, The study found that Leadership in the Jordanian Telecom industry is strongly aligned with the International standards and adopting the competencies which are honored by the American Management Association such as: Strategy development, communication skills, fostering innovation and creativity, developing leaders, and hiring talent.   Keywords: Leadership competences, Competitive advantage, Hybrid strategy, Jordan telecommunications Industry

The Impact of Management Information System on Human Resources Management Strategy "Empirical Study in the Jordanian Banking Sector"

The study aimed to analyze the significance role and impact of Management information System on Human Resource Management strategy in the Jordanian banking sector. The study population was all Human Resource staff in the top and middle level management of all national Banks in the Jordanian sector. The” unit of analysis” were top and the middle line mangers in the banking sector, a sum of (170) questionnaires were distributed, SPSS technique used to test major and minor hypothesis such as: spearman correlation, one way ANOVA, and simple regression. The Study revealed that MIS had a significant impact at level (P≤ 0.05) on HRM strategies in the Jordanian Banking Sector. Also, It was cleared that ‘Individual & procedures’ variable had the most effective & active role in shaping the HRM strategies in the Jordanian banking sector as well. Keywords: Management Information System, Human Resource Management Strategy, Jordanian Banking Sector

Thermo acoustic - MHD electrical Generator

AbstractThe thermo-acoustic generators offer a unique means of converting thermal energy into mechanical energy without any moving parts and without fluid circulation. They are comparable to the Stirling engine with the advantage of much greater simplicity. They are therefore natural candidates for special uses where interventions are limited. The problem to solve is transforming the mechanical energy into electrical energy. MHD generators offer excellent opportunities in this area, particularly by using the mechanisms of induction. The work concerns the combination of a thermo-acoustic generator with an induction generator of a new concept for obtaining electric current with adjustable voltage and current strength, delivered at the thermo-acoustic wave frequency. The system has been subjected to numerical simulation. However, an experimental program is being studied in collaboration with industrial and academic partners. The exploitation of the process by using a solar collector (parabolic or cylindrically-parabolic) is envisaged with the aim to produce electricity, for example, in isolate village

73. Custodiol versus blood cardioplegia in pediatric cardiac surgery

IntroductionCardioplegia is a solution used to arrest and protect the heart during open cardiac repair with the use of cardiopulmonary-bypass. Two types of cardioplegia were evaluated. Blood cardioplegia and HTK crystalloid cardioplegia known as Custodiol.ObjectivesTo evaluate the efficacy of myocardial protection with antegrade intermittent oxygenated blood cardioplegia in comparison to a single dose of Custodiol in pediatric cardiac surgery.MethodsA retrospective cohort study was performed between November 1st, 2013 and June 30th, 2014. Fifty-two patients underwent congenital heart procedure at King Abdul-Aziz University Hospital with the use of cardiopulmonary-bypass and cardioplegia. Forty-two received blood cardioplegia and ten received Custodiol. Data were collected from operative reports, electronic and paper charts. Statistical analysis was done using Pearson-test for continuous data and Kruskal–Wallis-test for categorical data. P-Value of 0.05 was considered significant.ResultsPatients in the Custodiol group experienced longer duration of cardiopulmonary-bypass time (median value of 84 versus 77.5min), aortic clamping time (63 versus 50.5min) and total operation time (175 versus 144min), compared to the Blood group. The duration of mechanical ventilation was longer in the Custodial group, 72 versus 48h in the Blood group (p=0.016). The incidence of post-operative arrhythmia requiring treatment was also higher in Custodiol group, 50% versus 12% in the Blood group (p=0.02). Low output syndrome, acute kidney injury and death were not statistically significantly different between two groups.ConclusionsCustodiol may have inferior myocardial protection compared to blood cardioplegia in children undergoing cardiac surgery. A randomized comparison is warranted

Decision Support Systems and its Impact on Organization Empowerment Field Study at Jordanian Universities

The concept and applications of Decision support systems (DSS) help companies to make better business decisions in order to attain the organizational objectives in an efficient way. Ample evidence indicated that building empowerment is important for having access to information and resources, thinking critically, being effective, create effecting change and building confidence. The study aims to identify the level of DSS applications and empowerment in the Jordanian universities, as well analyzing the impact of decision support systems on empowerment. The study developed a conceptual framework that consists of two parts which simulate the study model. The target population of the study comprised of all faculty members in the colleges of economics and business in the Jordanian universities (state and private). An equal stratified random sampling of (5) public universities and (5) private ones were taken, (150) surveys were distributed, (142) surveys were included in the analysis, (38) items were designed based on previous studies to meet the study objectives. The Study revealed that DSS generators had a significant effect at level  (P? 0.05) on organization empowerment in the Jordanian universities, also the study found a statistically significant effect of  DSS generators on personal and collective empowerment  in the Jordanian universities.   Keywords: Information systems, Decision support systems, Organization empowerment, Jordanian universities

Image Compression Techniques: A Survey in Lossless and Lossy algorithms

The bandwidth of the communication networks has been increased continuously as results of technological advances. However, the introduction of new services and the expansion of the existing ones have resulted in even higher demand for the bandwidth. This explains the many efforts currently being invested in the area of data compression. The primary goal of these works is to develop techniques of coding information sources such as speech, image and video to reduce the number of bits required to represent a source without significantly degrading its quality. With the large increase in the generation of digital image data, there has been a correspondingly large increase in research activity in the field of image compression. The goal is to represent an image in the fewest number of bits without losing the essential information content within. Images carry three main type of information: redundant, irrelevant, and useful. Redundant information is the deterministic part of the information, which can be reproduced without loss from other information contained in the image. Irrelevant information is the part of information that has enormous details, which are beyond the limit of perceptual significance (i.e., psychovisual redundancy). Useful information, on the other hand, is the part of information, which is neither redundant nor irrelevant. Human usually observes decompressed images. Therefore, their fidelities are subject to the capabilities and limitations of the Human Visual System. This paper provides a survey on various image compression techniques, their limitations, compression rates and highlights current research in medical image compression

Basins and Cultivated Lands Recharge Evaluation on The Basis of Experimental & Mathematical Analysis in Hashimiya-Iraq

القياسات الرياضية والحقلية والدراسة المختبرية المعتمدة لتققيم صلاحية الاشكال الرياضية ضمنها نموذج هورتن في حساب الترشيح وهي معادلة الطاقة والمتعددة والمختلطة . العمل شمل قياسات الترشيح لمنطقة الهاشمية الواقعة وسط العراق والتي قسمت الى تسعة قطاعات اداريةهي الجربوعية ،الهاشمية ،النويدرة ،الطبرة ،ااسادة ،الزينية ،اج3،الفياضية والتياس.الدراسة الحالية أثبتت أن معادلة الطاقة هي الافضل حيث يصل معامل الارتباط 0.996 بينما للمتعددة والمختلطة وهورتن 0.947،0.958 و0.84 على التوالي. من الجدير بالذكر ، ان نموذج هورتن يعرض ترشيح اوطأ بعد الساعتين.عمق الترشيح الحقيقيي في الطبقة الحاملة التحت سطحية حسبت بالاعتماد على النماذج الحقلية والفحوصات المختبرية لنسيج التكوين الجيولوجي لتحديد المسامية لمنطقة الهاشمية.A mathematical, field measurements and laboratorial study was adopted to evaluate the validity of many mathematical forms including Horton Model for estimating infiltration rate and infiltration potential, they are; power, polynomial and mixed formulas. The work composed of infiltration field measurements for Hashyimia Region located in the middle of Iraq which for simplicity and accuracy is divided into nine administration agricultural sectors namely as; Jerboeyia, Hashyimia, Niwedra, Tebra, Sada, Zineyia, H3, Fayadhiya, and Bazul sectors. The current study proved that the power formula is the best fit to the measuring data than polynomial, mixed and Horton models since the power formula offers 0.996 correlation factor whereas polynomial, mixed and Horton offer 0.947, 0.958 and 0.84 respectively. It is worth to mention that in all cases Horton Model offers less infiltration potential after 2hrs since infiltration process is starte

Studies on the acylation of 4-(2-aminoethylthio)-7-nitrobenzofurazan: the role of bases in promoting the formation of fluorescent S-acyl derivatives through S–N Smiles rearrangement

The acylation of 4-(2-aminoethylthio)-7-nitrobenzofurazan has been investigated. Depending on the use of the base, a competitive Smiles rearrangement occurs during the acylation step leading to the formation of N-acyl and/or fluorescent S-acyl derivatives. The acylating agent also affects the ratio of N/S acylated isomers