Analytical Solution of Biological Population of Fractional Differential Equations by Reconstruction of Variational Iteration Method

This article presents a brand-new approximation analytical technique we refer to as the reconstruction of variational iteration method. For the goal of solving fractional biological population option pricing equations, this methodology was created. In certain circumstances, you may actually use the well-known Mittag-Leffer function to get an explicit response. The usage of the three examples below demonstrates the precision and effectiveness of the suggested method. The results show that the RVIM is not only quite straightforward but also very successful at resolving non-linear problems

The Effect of Patient Education through Social Media on the COVID-19-Related Anxiety in Patients with Diabetes: A Single-Blind Clinical Trial

Background and Objective: The COVID-19 pandemic has increased the level of anxiety in patients with diabetes and educating patients in this field can be an appropriate method to reduce their level of anxiety. The present study aimed to determine the effect of patient education through social media on the COVID-19-related anxiety in patients with diabetes. Materials and Methods: The present single-blind clinical trial was conducted at the teaching hospitals of Zanjan, Iran in 2022.  A total of 113 diabetic patients were selected using convenience sampling and then divided into two groups of experimental (n = 58) and control (n = 55) by simple random allocation. Data were collected using a demographic questionnaire and Corona Disease Anxiety Scale (CDAS). Training related to COVID-19 was provided to the intervention group at a two-week interval, while the control group only received routine care. Data were entered into SPSS software (version 26) and then analyzed using descriptive and inferential statistics. Results: Patients in both groups were homogeneous in terms of demographic and clinical characteristics (P >0.05). A statistically significant difference was observed between the mean scores of anxiety in the intervention group at two measurement points before and after the intervention (P 0.05). Conclusion: Educational intervention through social media slightly reduces COVID-19-related anxiety in patients with diabetes. Therefore, social media is suggested as a convenient and accessible method to educate patients on Covid-19

The Effect of Ringer versus Haemaccel Preload on Incidence of Postoperative Nausea and Vomiting

ABSTRACT Introduction: Postoperative nausea and vomiting (PONV) is the most common and unpleasant postoperative complication. There is much controversy on preoperative fluid therapy. The aim of this study was to examine the effect of crystalloid fluid (Ringer solution) versus colloid (Haemaccel solution) on the incidence of postoperative nausea and vomiting in patients receiving spinal anesthesia. Methods: In this double-blinded clinical trial, 46 patients were selected according to the inclusion and exclusion criteria. Patients were randomly allocated to one of two groups. The crystalloid group received Ringer solution at a volume of 7 ml/kg and colloid group received 7ml/kg of 3% Modified Gelatin (Haemaccel) as a preoperative intravenous bolus. We used a Verbal Rating Scale (VRS) for assessing the nausea and vomiting occurrence. Data were analyzed using SPSS software ver.13 and x2 test and independent t-test. Results: The result showed that the incidence of PONV was less frequent in both Ringer and Haemaccel groups, but the incidence of vomiting and the intensity of nausea was not significantly different in any time point after anesthesia. Conclusion: We conclude that preoperative fluid administration decreases the incidence of PONV, and both Crystalloids (Ringer) and colloids (haemaccel) solution were found to be equivalent in prevention of PONV. Therefore using of either Ringer or haemaccel solution is recommended for prevention of PONV

The Evaluation of Right Atrial Temporary Pacing for Preventing Postoperative Atrial Fibrillation Following Coronary Artery Bypass Grafting Surgery: prospective observational study

Abstract: Atrial fibrillation (AF) is the most frequent (arrhythmia) complication following coronary artery bypass grafting surgery (CABG). The present study is designed to evaluate the efficacy of temporary atrial pacing in the prevention of AF after off pump coronary artery bypass graft surgery. The patients who had first-time off-pump CABG were enrolled in the study. The exclusion criteria were that the patients had valve dysfunctions. The study group (n = 39) were paced electively and the control group (n = 40) were not paced, and both were monitored for 96 hours postoperative for the occurrence of AF. The end points of the study were occurrence of AF, death during postoperative period, and discharge from hospital. The data analyzed by t-test and chi-squared test for variables. A total of 120 patients enrolled in the study. Forty-one patients were excluded from the study because of intraoperative dysrhythmia, tachycardia or failure of pacing, so the final study subjects consist of 79 patients. AF occurred in 13 of 39 paced group (33.33%) and 13 of 40 non-paced group (32.5%). No statically significant difference in the proportion of patients developing atrial fibrillation was observed between the study and the control group for incidence of AF. Old age (P=0.007), history of myocardial infarction (P=0.001), systolic dysfunction (P=0.003), ejection fraction (P=0.022) and atrial enlargement (P=0.001) were identified as AF predictors. The result of this study shows that prophylactic right atrial pacing had no significant effect on reducing the incidence of AF following off-pump CABG