Estimation of hydrogen solubility in aqueous solutions using machine learning techniques for hydrogen storage in deep saline aquifers.

The porous underground structures have recently attracted researchers' attention for hydrogen gas storage due to their high storage capacity. One of the challenges in storing hydrogen gas in aqueous solutions is estimating its solubility in water. In this study, after collecting experimental data from previous research and eliminating four outliers, nine machine learning methods were developed to estimate the solubility of hydrogen in water.

Interfacial tension and wettability alteration during hydrogen and carbon dioxide storage in depleted gas reservoirs.

The storage of CO and hydrogen within depleted gas and oil reservoirs holds immense potential for mitigating greenhouse gas emissions and advancing renewable energy initiatives. However, achieving effective storage necessitates a thorough comprehension of the dynamic interplay between interfacial tension and wettability alteration under varying conditions. This comprehensive review investigates the multifaceted influence of several critical parameters on the alterations of IFT and wettability during the injection and storage of CO and hydrogen.

Predictors of long-term outcomes in patients with persistent atrial fibrillation undergoing electrical cardioversion.

Introduction: Cardioversion for atrial fibrillation (AF) is routinely implemented in daily practice; however, it can be associated with the development of recurrent AF. In this study we aimed to evaluate the predictors of AF recurrence after electrical cardioversion, and to compare the outcomes of patients with or without AF recurrence during follow-up.

Methods: Patients with persistent AF were enrolled from March 2015 to September 2018.

The effect of supplementary light on the photosynthetic apparatus of strawberry plants under salinity and alkalinity stress.

Considering the destructive effect of stresses on the photosynthetic apparatus of plants and the important role of light in photosynthesis, we investigated the effect of complementary light on the photosynthetic apparatus under salinity and alkalinity stress conditions. Light-emitting diodes (LEDs) in monochromatic blue (460 nm), monochromatic red (660 nm), dichromatic blue/red (1:3), white/yellow (400-700 nm) at 200 μmol m S, and without LED treatment were used. The stress treatments were in three stages: Control (no stress), Alkalinity (40 mM NaHCO), and Salinity (80 mM NaCl).

How photoautotrophy, photomixotrophy, and ventilation affect the stomata and fluorescence emission of pistachios rootstock?

The effects of ventilation and sucrose concentration on proliferation and organogenesis of pistachio cutting and photosynthetic performance of two cultures of pistachio rootstocks have been assessed. The apical leaf buds (Qazvini and UCB1 cultivars) were cultured in filter vessels containing Murashige and Skoog medium supplemented with 0, 10, 15, and 30 g L of sucrose. The plants treated with 10, 15, and 30 g L sucrose showed no significant differences regarding the measured traits; therefore, this treatment was set aside from the final statistical analyses.

Prognostic value of fragmented QRS complex in patients with acute myocardial infarction.

Background: Several factors and risk stratification tools have been studied to determine the prognosis of acute coronary syndrome. Fragmented QRS (fQRS) is a marker of myocardial scar and its prognostic role has recently been demonstrated. The present study aimed to investigate the association between the presence of fQRS in electrocardiogram and the prognosis of ST-segment elevation and non-ST-segment elevation myocardial infarction (STEMI and NSTEMI).

Fragmented QRS and subclinical left ventricular dysfunction in individuals with preserved ejection fraction: A speckle-tracking echocardiographic study.

Introduction: Fragmented QRS (fQRS) complex on routine 12-lead electrocardiogram (ECG) predicts adverse outcomes in patients with cardiovascular diseases. In addition, it has been found to be associated with subclinical myocardial dysfunction in chronic diseases. We sought to investigate the relationship between the presence of fQRS with the myocardial functions in individuals free from known systemic cardiovascular diseases.

Postoperative Atrial Fibrillation Following Cardiac Surgery: From Pathogenesis to Potential Therapies.

Postoperative atrial fibrillation (POAF) is a major complication after cardiac surgery which can lead to high rates of morbidity and mortality, an enhanced length of hospital stay, and an increased cost of care. POAF is postulated to be a multifactorial phenomenon; however, some major pathogeneses have been proposed, including inflammatory pathways, oxidative stress, and autonomic dysfunction. Genetic studies also showed that inflammatory pathways, beta-1 adrenoreceptor variants, G protein-coupled receptor kinase 5 gene variants, and non-coding single-nucleotide polymorphisms in the 4q25 chromosomal locus are involved in this phenomenon.

Experiences of students and faculty members about using virtual social networks in education: A qualitative content analysis.

Introduction: Virtual social networks are increasingly being used by academics and students in health sciences. It is necessary to examine opportunities and challenges of these networks based on the views of faculty and students to describe the existing situation and planning for proper use. The purpose of this study was to explore the experiences of students and faculty members about opportunities and challenges of using virtual social networks in education.

Potential role of gender specific effect of leptin receptor deficiency in an extended consanguineous family with severe early-onset obesity.

Congenital Leptin receptor (LEPR) deficiency is a rare genetic cause of early-onset morbid obesity characterised by severe early onset obesity, major hyperphagia, hypogonadotropic hypogonadism and immune and neuroendocrine/metabolic dysfunction. We identified a homozygous loss-of-function mutation, NM_002303.5:c.

Program evaluation of an Integrated Basic Science Medical Curriculum in Shiraz Medical School, Using CIPP Evaluation Model.

Introduction: In recent years curriculum reform and integration was done in many medical schools. The integrated curriculum is a popular concept all over the world. In Shiraz medical school, the reform was initiated by stablishing the horizontal basic science integration model and Early Clinical Exposure (ECE) for undergraduate medical education.

Medical students' academic emotions: the role of perceived learning environment.

Introduction: Research shows that there is a relationship between students' perceptions of classroom and learning environment and their cognitive, affective, emotional and behavioral outcomes, so, in this study the relationship between medical students' perception of learning environment and academic emotions was examined.

Method: The research method used was descriptive-correlative. The statistical population consisted of medical students of Shiraz University of Medical Sciences.

Plasmid DNA affinity partitioning using polyethylene glycol - sodium sulfate aqueous two-phase systems.

Extraction of plasmid DNA (pDNA) from an alkaline bacterial cell lysate has been investigated using partitioning and affinity partitioning in aqueous two-phase systems (ATPSs) containing 12% (w/w) polyethylene glycol and 12% (w/w) sodium sulfate. In this work, a modified 20bp pyrimidine oligonucleotide acting as a triplex-forming oligonucleotide (TFO) was employed as an affinity ligand to improve the partition behavior. The pUC118 plasmid was chosen to be extracted because of its specific oligonucleotide recognition sequence.

Psychometric properties of the Persian version of the Ambulatory Care Learning Educational Environment Measure (ACLEEM) questionnaire, Shiraz, Iran.

Purpose: Evaluation is the main component in design and implementation of educational activities and rapid growth of educational institution programs. Outpatient medical education and clinical training environment is one of the most important parts of training of medical residents. This study aimed to determine the validity and reliability of the Persian version of Ambulatory Care Learning Educational Environment Measure (ACLEEM) questionnaire, as an instrument for assessment of educational environments in residency medical clinics.

White Blood Cell Count to Mean Platelet Volume Ratio Is a Prognostic Factor in Patients with Non-ST Elevation Acute Coronary Syndrome with or without Metabolic Syndrome.

Background And Objectives: Leukocyte and platelet have been found to be associated with metabolic syndrome (MetS). We aimed to determine the usefulness of a novel marker named white blood cell count to mean platelet volume ratio (WMR) for predicting outcomes of non-ST elevation acute coronary syndrome (NSTE-ACS) with or without MetS.

Subjects And Methods: A total of 331 NSTE-ACS individuals (60±12.

Statin Antiarrhythmic Effect on Atrial Fibrillation in Statin-Naive Patients Undergoing Cardiac Surgery: A Meta-Analysis of Randomized Controlled Trials.

Background: Statin therapy has been thought to improve outcomes in cardiac surgeries. We aimed to determine the statin effects on the development of postoperative atrial fibrillation (AF), hospital length of stay (LOS), and inflammatory status in patients undergoing cardiac surgeries.

Methods: A systematic literature search in databases was performed, until January 2015.

White blood cell count to mean platelet volume ratio as a novel non-invasive marker predicting long-term outcomes in patients with non-ST elevation acute coronary syndrome.

Background: Total white blood cell (WBC) count and mean platelet volume have previously been shown to predict outcomes in acute coronary syndrome (ACS) patients. In this prospective study, we sought to determine the prognostic value of baseline WBC count to mean platelet volume ratio (WMR) in patients with non-ST elevation acute coronary syndrome (NSTE-ACS).

Methods: A total of 490 patients with NSTE-ACS were prospectively enrolled.

Diagnostic importance of admission platelet volume indices in patients with acute chest pain suggesting acute coronary syndrome.

Objective: Acute coronary syndrome (ACS) is a challenging issue in cardiovascular medicine. Given platelet role in atherothrombosis, we sought to determine whether platelet indices can be used as diagnostic tests for patients who suffered from an acute chest discomfort.

Methods: We prospectively enrolled 862 patients with an acute chest pain and 184 healthy matched controls.