Experimental demonstration of a Grover-Michelson interferometer.

We present a low-resource and robust optical implementation of the four-dimensional Grover coin, a four-port linear-optical scatterer that augments the low dimensionality of a regular beam-splitter. While prior realizations of the Grover coin required a potentially unstable ring cavity to be formed, this version of the scatterer does not exhibit any internal interference. When this Grover coin is placed in another system, it can be used for interferometry with a higher-dimensional set of optical field modes.

Avoid overstepping the bounds of evidence: the role of the orthodontist in managing pediatric Obstructive Sleep Apnea.

Introduction: Pediatric Obstructive Sleep Apnea (OSA) is a common sleep-related breathing disorder often linked to distinct craniofacial features and malocclusions. While orthodontic treatments, particularly maxillary expansion and mandibular advancement, have been suggested for managing this condition, the results remain controversial and are based on low-quality evidence. This paper aims to summarize the ongoing debates on this topic by reviewing relevant literature and highlighting the role of the orthodontist in diagnosing and managing OSA in daily clinical practice.

Traumatic Renal Artery Occlusion in Children: A Case Report.

Blunt trauma is a major cause of death in children, with renal arterial injuries occurring in less than 1% of cases. Traumatic renal artery occlusion (RAO) in children is rare and results in the loss of ipsilateral renal perfusion. Clinical signs are often nonspecific, and there is a lack of information on the exact incidence and management outcomes of these rare cases in children.