Endoscopic or Microscopic Tympanoplasty Advantages and Disadvantages: A Theory Domain Systematic Review.

 Tympanoplasty is a reparative surgery that has multiple indications. The aid of a microscope or an endoscope is necessary to carry out the procedure. The classic method utilizes the microscope; however, in the recent decades, the endoscope has been popular.

Intensive Olfactory Training in Post-COVID-19 Patients: A Multicenter Randomized Clinical Trial.

Background: Olfactory dysfunction (OD)-including anosmia and hyposmia-is a common symptom of COVID-19. Previous studies have identified olfactory training (OT) as an important treatment for postinfectious OD; however, little is known about its benefits and optimizations after SARS-CoV-2 infection.

Objective: This study aimed to assess whether olfactory training performance can be optimized using more fragrances over a shorter period of time in patients with persistent OD after COVID-19.

Author Correction: Handrail support interference in cardiac autonomic modulation adjustments in young adults during maximal exercise testing.

An amendment to this paper has been published and can be accessed via a link at the top of the paper.

Handrail support interference in cardiac autonomic modulation adjustments in young adults during maximal exercise testing.

The aim of this study was to investigate whether the use of handrail support during maximal exercise treadmill testing (ETT) would interfere in cardiac autonomic modulation kinetics when compared to not using handrail support. The hypothesis of overestimation in cardiac autonomic dynamics when the ETT is performed using handrail was tested. Thirty-five undergraduates (21.

Microbial colonization affects the efficiency of photovoltaic panels in a tropical environment.

Sub-aerial biofilm (SAB) development on solar panels was studied in São Paulo. After 6, 12 and 18 months' exposure, photovoltaic panels were covered by increasing proportions of organic matter (42%, 53% and 58%, respectively). Fungi were an important component of these biofilms; very few phototrophs were found.