Separation of oxygen from nitrogen using a graphdiyne membrane: a quantum-mechanical study.

Efficient separation of oxygen and nitrogen from air is a process of great importance for many industrial and medical applications. Two-dimensional (2D) membranes are very promising materials for separation of gases, as they offer enhanced mass transport due to their smallest atomic thickness. In this work, we examine the capacity of graphdiyne (GDY), a new 2D carbon allotrope with regular subnanometric pores, for separating oxygen (O) from nitrogen (N).

Evaluating Preoperative Intravenous Iron and Erythropoietin Treatment and Outcomes in Cardiac Surgery Patients.

Background: Anemia is more common in cardiac surgery patients than in other people. Severe anemia before cardiac surgery strongly predicts blood transfusion.

Objectives: This study aimed to evaluate the outcomes of Intravenous (IV) iron and erythropoietin (EPO) injection preoperatively in anemic patients waiting for coronary artery bypass graft (CABG) surgery.

The Impact of Neutrophil-Lymphocyte Ratio in Febrile Seizures: A Systematic Review and Meta-Analysis.

This meta-analysis was conducted to determine the relationship between neutrophil to lymphocyte ratio (NLR) and febrile seizure (FS). Our study was registered with the PROSPERO (ID: CRD42021259944). Web of Science, Embase, PubMed, Scopus, and ProQuest Central were searched, and finally, 17 studies were included.

Evaluation of Phobia, Knowledge, Attitude and Practice about SARS-CoV-2 Infection, a Study on Healthcare Workers and Their 1st Degree Relatives.

Background: Phobia as a psychological disorder seems to be aggravated during health crises like the current COVID-19 outbreak. On the other hand, people's knowledge about a situation can help decrease the resulting fear.

Study Design: This is a cross-sectional analytical study to evaluate the COVID-19 related phobia and to measure knowledge, attitude, and practice of our target Iranian population about COVID-19.

Missed nursing care in the COVID-19 pandemic in Iran.

Background: Quality of care is one of the most critical issues in nursing care today. Moreover, all health care employees are responsible for providing support and high-quality, safe care. However, nurses caring for COVID-19 patients face problems such as unfamiliar work environments, exposure to the disease, lack of experience in their new positions, and close public and media attention.