Enhanced Catalytic Activity and Energy Savings with Ni-Zn-Mo Ionic Activators for Hydrogen Evolution in Alkaline Electrolysis.

Green hydrogen produced by alkaline electrolysis is a promising solution to address the world's increasing energy demand while mitigating greenhouse gas emissions. However, the efficient and cost-effective production of green hydrogen via alkaline electrolysis requires improvements. This paper presents an in situ activation process that simplifies the alkaline electrolysis technology while enhancing the catalytic activity of electrodes for the hydrogen evolution reaction.

Are the Persistent Postural-Perceptual Dizziness (PPPD) Patients More Anxious than the Patients with Other Dizziness?

Background: The Behavioral Subcommittee of the Bárány Society Committee for Classification of Vestibular Disorders recently established the diagnostic criteria for a persistent postural-perceptive dizziness (PPPD).

Objectives: This study aims to determine how significant the degree of anxiety and depression of PPPD patients is, compared to the patients with other dizziness.

Subjects And Methods: The study was conducted on 78 patients, 39 (50%) of whom suffer from PPPD, and of a control group consisting of the same number of patients with other types of dizziness.

A Rare Case of Posttraumatic Bilateral BPPV Presentation.

A rare case of a 38-year-old female patient who developed benign paroxysmal positional vertigo (BPPV) three weeks after head trauma is presented. The disease manifested bilaterally, which is not uncommon posttraumatically, but in this case, it manifested itself as canalithiasis of the posterior canal on both sides and cupulolithiasis of the right lateral canal, which to our knowledge is a unique and, until now, unpublished case. The aim of this review is to point out the fact that, in such a complex multicanal and bilateral clinical presentation of BPPV, it is not sufficient to perform only positioning but also additional laboratory tests.

Post-COVID-19 Benign Paroxysmal Positional Vertigo.

Background: COVID-19 is a disease caused by a new strain of coronavirus (SARS-COVID-19). The WHO first learned about this new virus on December 31, 2019, following a report on a group of cases of "viral pneumonia" in Wuhan, People's Republic of China, and declared a pandemic in March 2020. The disease was an almost complete unknown at the outset, but knowledge of its pathophysiology, clinical picture, and treatment options grew and developed rapidly.

Change in body weight, body fat and body water in children after tonsilloadenoidectomy.

Objective: To assess what was the cause of weight loss in children in early postoperative period after tonsilloadenoidectomy.

Desing And Setting: Prospective study conducted at Department of ENT, Head and Neck Surgery, General Hospital "Dr. Josip Benčević" Slavonski Brod, Croatia.