Disentangling Sources of Momentum Fluctuations in Xe+Xe and Pb+Pb Collisions with the ATLAS Detector.

High-energy nuclear collisions create a quark-gluon plasma, whose initial condition and subsequent expansion vary from event to event, impacting the distribution of the eventwise average transverse momentum [P([p_{T}])]. Disentangling the contributions from fluctuations in the nuclear overlap size (geometrical component) and other sources at a fixed size (intrinsic component) remains a challenge. This problem is addressed by measuring the mean, variance, and skewness of P([p_{T}]) in ^{208}Pb+^{208}Pb and ^{129}Xe+^{129}Xe collisions at sqrt[s_{NN}]=5.

A case report of familial catecholaminergic polymorphic ventricular tachycardia with a novel mutation in the ryanodine receptor 2.

Background: Catecholaminergic polymorphic ventricular tachycardia (CPVT) is suspected by clinical characteristics involving fatal arrhythmic events in childhood and adolescence. On the other hand, genetic testing is also important because the mutation site in the specific genes of CPVT is related to the risk of ventricular arrhythmias and gene penetrance.

Case Summary: We present a case of a 15-year-old male with a familial history of CPVT and a history of syncope at the age of 5.

[Contrivance to Use Ultrasonic Scalpel for Laparoscopic Surgery during Internal Thoracic Artery Harvest].

From April 2024, manufacturing of short-shaft ultrasonic scalpels( SNGHK) has ceased. A scalpel for laparoscopic surgery (HDH05) remains available;however, its long shaft is unsuitable for internal thoracic artery harvesting through a median sternotomy. We contrived to make the latter device easier to handle using a method that requires no specialized parts.

[Evaluation of Reduced Port Surgery for Primary Spontaneous Pneumothorax:Marionette Surgery].

Background: We aimed to assess the outcomes of reduced port surgery using "marionette technique" in patients with primary spontaneous pneumothorax (PSP) compared to conventional three-port video-assisted thoracoscopic surgery( VATS).

Methods: Ninety patients were enrolled in this study from August 2015 to July 2021. The marionette technique was performed as follow.

The response to adenosine tells all: What is the mechanism?

The surface electrocardiograms during a wide QRS complex tachycardia and during the injection of 10 mg of adenosine triphosphate. What is the mechanism of this wide QRS tachycardia?