Risk Mitigation Strategies to Prevent Transmission of COVID-19 in the Military Classroom Setting: A Case of a Symptomatic SARS-CoV2 Positive Student without Apparent Spread to Classmates.

Since the onset of the COVID-19 pandemic in late 2019, the world community has responded with ever-evolving measures to reduce the spread of SARS CoV-2, the virus that causes COVID-19 (Coronavirus Disease 2019)1. One particular area of interest is understanding the risk of the in-person classroom setting and if any mitigation efforts are effective in preventing the spread of disease in that setting. In this paper, we present a case study of a US Army Advanced Individual Training (AIT) course/classroom wherein a student was diagnosed with COVID-19, and there was no apparent spread to others in his classroom.

Characteristics and outcomes of gastroduodenal ulcer bleeding: a single-centre experience in Lithuania.

Introduction: Despite the optimal use of combined endoscopic haemostasis and pharmacologic control of acid secretion in the stomach, mortality in patients with peptic ulcer bleeding (PUB) has remained constant. Recent data has shown that the majority of patients with PUB die of non-bleeding-related causes.

Aim: To provide an overview of our experience of PUB management, with emphasis on the effect of age, gender, comorbidities, and drug use on the characteristics and outcomes of gastroduodenal ulcer bleeding.

Checklist usage decreases critical task omissions when training residents to separate from simulated cardiopulmonary bypass.

Objective: Separation from cardiopulmonary bypass (CPB) requires multiple preparatory steps, during which mistakes, omissions, and human errors may occur. Checklists have been used extensively in aviation to improve performance of complex, multistep tasks. The aim of this study was to (1) develop a checklist using a modified Delphi process to identify essential steps necessary to prepare for separation from CPB, and (2) compare the frequency of completed items with and without the use of a checklist in simulation.

Surgical management of gastrointestinal stromal tumors: a single center experience.

Introduction: Gastrointestinal stromal tumors (GISTs) are the most common mesenchymal tumors of the gastrointestinal (GI) tract. Although the therapy targeted at inhibiting tyrosine kinases has shown dramatic results in metastatic and inoperable GISTs, the mainstay of treatment in primary localized forms remains surgical resection.

Aim: To provide an overview of our experience of GIST diagnosis and management, with emphasis on comparison of minimally invasive and open surgical resection for primary GISTs.

Order of magnitude smaller limit on the electric dipole moment of the electron.

The Standard Model of particle physics is known to be incomplete. Extensions to the Standard Model, such as weak-scale supersymmetry, posit the existence of new particles and interactions that are asymmetric under time reversal (T) and nearly always predict a small yet potentially measurable electron electric dipole moment (EDM), d(e), in the range of 10(-27) to 10(-30) e·cm. The EDM is an asymmetric charge distribution along the electron spin (S(→)) that is also asymmetric under T.