Self-assessment of residents in breaking bad news; skills and barriers.

Introduction: Breaking bad news (BBN) is inevitable in medicine and is one of the most important and difficult professional tasks of physicians. The main aims of this study are to evaluate residents' practice of BBN and identify perceived barriers to its implementation.

Methods: In this cross-sectional study in 2021, 240 residents from medical, surgical, and emergency medicine departments completed the demographic questionnaire, the Persian SPIKES questionnaire (P-SPIKES), and the researchers-made questionnaire of Barriers to Breaking Bad News (BBBN).

Metoprolol: New and Efficient Corrosion Inhibitor for Mild Steel in Hydrochloric and Sulfuric Acid Solutions.

The inhibition behavior of metoprolol tablet on steel alloy (st37) in 1 M hydrochloric acid and 0.5 M sulfuric acid solutions were studied by three methods (potentiodynamic polarization, electrochemical impedance spectroscopy, and scanning electronic microscopy, SEM). The obtained parameters revealed that different amounts of metoprolol drug inhibited the corrosion of mild steel in the acid solutions of HCl and H2SO4.

Synthesis of LaO/MWCNT nanocomposite as the sensing element for electrochemical determination of theophylline.

In this study, an electrochemical sensor was applied for the determination of theophylline, a bronchodilator drug, using differential pulse voltammetry (DPV). A glassy carbon electrode (GCE) surface was modified with the La2O3/MWCNT nanocomposite. The design is simplistic, efficient, greener and solvent-free microwave procedure for synthesizing La2O3/MWCNT nanocomposites.

Synthesis of bifunctional cabbage flower-like Ho/NiO nanostructures as a modifier for simultaneous determination of methotrexate and carbamazepine.

Cabbage flower-like Ho/NiO nanostructure (CFL-Ho/NiO NSs) with significant electrocatalytic oxidation has been published for the first time. First, structure and morphology of CFL-Ho/NiO-NSs have been described by XRD, SEM, and EDX methods. Then, CFL-Ho/NiO-NSs have been applied as a modifier for simultaneous electrochemical detection of methotrexate (MTX) and carbamazepine (CBZ).