Rational Chebyshev functions with new collocation points in semi-infinite domains for solving higher-order linear ordinary differential equations

The purpose of this paper is to investigate the use of rational Chebyshev (RC) functions for solving higher-order linear ordinary differential equations with variable coefficients on a semi-infinite domain using new rational Chebyshev collocation points.  This method transforms the higher-order linear ordinary differential equations and the given conditions to matrix equations with unknown rational Chebyshev coefficients. These matrices together with the collocation method are utilized to reduce the solution of higher-order ordinary differential equations to the solution of a system of algebraic equations. The solution is obtained in terms of RC series. Numerical examples are given to demonstrate the validity and applicability of the method. The obtained numerical results are compared with others existing methods and the exact solution where it shown to be very attractive and maintains better accuracy

Nebulised surfactant in preterm infants with or at risk of respiratory distress syndrome

Nebulised surfactant has the potential to deliver surfactant to the infant lung with the goal of avoiding endotracheal intubation and ventilation, ventilator-induced lung injury and bronchopulmonary dysplasia (BPD). To determine the effect of nebulised surfactant administration either as prophylaxis or treatment compared to placebo, no treatment or intratracheal surfactant administration on morbidity and mortality in preterm infants with, or at risk of, respiratory distress syndrome (RDS). Searches were performed of CENTRAL (The Cochrane Library, January 2012), MEDLINE and PREMEDLINE (1950 to January 2012), EMBASE (1980 to January 2012) and CINAHL (1982 to January 2012), as well as proceedings of scientific meetings, clinical trial registries, Google Scholar and reference lists of identified studies. Expert informants and surfactant manufacturers were contacted. Randomised, cluster-randomised or quasi-randomised controlled trials of nebulised surfactant administration compared to placebo, no treatment, or other routes of administration (laryngeal, pharyngeal instillation of surfactant before the first breath, thin endotracheal catheter surfactant administration or intratracheal surfactant instillation) on morbidity and mortality in preterm infants at risk of RDS. We considered published, unpublished and ongoing trials. Two review authors independently assessed studies for eligibility and quality, and extracted data. No studies of prophylactic or early nebulised surfactant administration were found. A single small study of late rescue nebulised surfactant was included. The study is of moderate risk of bias. The study enrolled 32 preterm infants born < 36 weeks' gestation with RDS on nasal continuous positive airway pressure (nCPAP). The study reported no significant difference between nebulised surfactant administration compared to no treatment groups in chronic lung disease (risk ratio (RR) 5.00; 95% confidence interval (CI) 0.26 to 96.59) or other outcomes (oxygenation 1 to 12 hours after randomisation, need for mechanical ventilation, days of mechanical ventilation or continuous positive airways pressure (CPAP) or days of supplemental oxygen). No side effects of the nebulised surfactant therapy or aerosol inhalation were reported. There are insufficient data to support or refute the use of nebulised surfactant in clinical practice. Adequately powered trials are required to determine the effect of nebulised surfactant administration for prevention or early treatment of RDS in preterm infants. Nebulised surfactant administration should be limited to clinical trials

Corruption, political instability and growth: Evidence from the Arab Spring

This paper empirically investigates the relationship between corruption, political instability and economic growth. We first show how these variables interact by allowing for bidirectional causality between each two of the three variables for which we employ a panel VAR model on a dataset of 140 countries over the period of 1990-2017. Then, we exploit the incidence of the Arab Spring, as an exogenous shock, to measure the short-term effects of political shocks on corruption levels, political stability and economic growth using the differencesin-differences (DiD) framework

Erotismo, lengua y cultura en la traducción al árabe de La pasión turca, de Antonio Gala

This article analyzes the translation of erotic texts from Spanish to Arabic and the alterations that these texts may experience. The way of talking about eroticism or sexuality changes from one society to another and from one era to another. The strategies used in modifying these texts are attenuation through euphemism, circumlocution, omission, and literal translation.En este artículo se analiza la traducción de textos eróticos del español al árabe y las alteraciones que pueden experimentar dichos textos. La forma de abordar el erotismo o la sexualidad cambia de una sociedad a otra y de una época a otra. Las estrategias empleadas en la modificación de estos textos son la atenuación mediante el eufemismo, el circunloquio, la omisión y la traducción literal

Attitudes of doctors and nurses toward patient safety within emergency departments of two Saudi Arabian hospitals

Background: A hospital culture that promotes and insures patient safety is a critical aspect for the effective delivery of hospital services and patient care. Yet there are significant patient health and safety issues in hospitals worldwide. This study aims to investigate doctors’ and nurses’ attitudes toward patient safety in the emergency departments (ED) of two Saudi hospitals. Method: A cross-sectional survey using a validated Safety Attitudes Questionnaire (SAQ) was used. Total of 503 ED doctors and nurses completed SAQ. Correlation analysis, using Spearman’s Rho, was performed between the number of incidents reported and each dimension of the SAQ. Results: The mean score of each SAQ dimension was \u3c 75%, indicating that nurses and doctors generally had less than a positive safety attitudes. This was especially prominent with dimensions of stress recognition (58.1%) and perceptions of hospital management (56.9%). Furthermore, nurses reported significantly lower on the teamwork climate dimension than doctors (p \u3c .01), whereas doctors reported significantly lower on the hospital work conditions dimension than nurses (p \u3c .01). There was a significant negative correlation between the number of errors reported and teamwork climate, job satisfaction, and work conditions. Conclusion: Safety attitudes of doctors and nurses employed in EDs of Saudi hospitals are less than positive and correlate with the number of reported errors. Safety training interventions and management support would appear to be the most likely avenues to improve the safety attitudes and performance within Saudi ED’s