Methemoglobinemia After Transesophageal Echocardiogram.

The widespread administration of local anesthetics such as benzocaine necessitates understanding their lesser-known adverse effects. Acquired methemoglobinemia (MetHb) is a rare but life-threatening complication associated with the routine use of benzocaine spray prior to endoscopic procedures such as transesophageal echocardiography (TEE). Recognizing the manifestation of MetHb is critical to early detection and appropriate management of this condition.

Automated acoustic voice screening techniques for comorbid depression and anxiety disorders.

Anxiety disorders (AD) and major depressive disorders (MDD) are growing in prevalence, yet many people suffering from these disorders remain undiagnosed due to known perceptual, attitudinal, and structural barriers. Methods, tools, and technologies that can overcome these barriers and improve screening rates are needed. Tools based on automated analysis of acoustic voice could help bridge this gap.

Heptamolybdate: a highly active sulfide oxygenation catalyst.

The sulfide oxygenation activities of both heptamolybdate ([Mo7O24]6-, [1]6-) and its peroxo adduct [Mo7O22(O2)2]6- ([2]6-) were examined in this contribution. [Mo7O22(O2)2]6- was prepared in a yield of 65% from (NH4)6[Mo7O24] (1a) upon treatment of 10 equiv. of H2O2 and structurally identified through single crystal X-ray diffraction study.