Use of risk assessment tools in emergency general surgery: a cross-sectional survey of surgeons and trainees.

The applicability of risk assessment tools (RATs) for preoperative risk assessment (PRA) in Emergency General Surgery (EGS) is unclear. Limited knowledge of surgeons' approach to risk assessment is available. We investigated how Canadian surgeons approach PRA for EGS and their awareness of available RATs.

Generative adversarial networks with fully connected layers to denoise PPG signals.

Objective: The detection of arterial pulsating signals at the skin periphery with Photoplethysmography (PPG) are easily distorted by motion artifacts. This work explores the alternatives to the aid of PPG reconstruction with movement sensors (accelerometer and/or gyroscope) which to date have demonstrated the best pulsating signal reconstruction.

Approach: A generative adversarial network with fully connected layers (FC-GAN) is proposed for the reconstruction of distorted PPG signals.

Duplication of the gallbladder: An intraoperative finding during laparoscopic cholecystectomy.

Introduction: Duplication of the gallbladder is a rare congenital malformation associated with the development of cholelithiasis. It increases the risk of iatrogenic bile duct injury during cholecystectomy and can lead to symptom recurrence if missed. Although preoperative imaging is helpful, detection rates are around 50 %.

Generative adversarial networks with fully connected layers to denoise PPG signals.

Objective: The detection of arterial pulsating signals at the skin periphery with Photoplethysmography (PPG) are easily distorted by motion artifacts. This work explores the alternatives to the aid of PPG reconstruction with movement sensors (accelerometer and/or gyroscope) which to date have demonstrated the best pulsating signal reconstruction.

Approach: A generative adversarial network with fully connected layers (FC-GAN) is proposed for the reconstruction of distorted PPG signals.

Separation Time of Aluminothermic Reduction Products for Sustainable Silicon Production.

Background: This work was carried out within the framework of the SisAl Pilot project, which is devoted to the environmentally friendly production of silicon. This new method relies on the aluminothermic reduction of quartz in slag, offering a more sustainable alternative to the traditional reduction of silica with carbon in submerged arc furnaces.

Methods: The process takes place in a rotary kiln producing silicon (Si) and alumina slag (actually, a CaO - Al O slag), which must be separated at the end to extract the silicon.