The Swiss plate geophone (SPG) system has been installed and tested in more than 20 steep gravel-bed streams and rivers, and related studies generally resulted in rather robust calibration relations between signal impulse counts and transported bedload mass.Here, we compare this system with three alternative surrogate measuring systems.A variant of
Objective: This study investigated the association between Coronavirus Disease 2019 mRNA vaccination and stroke in Qatar.Methods: Between December 1, 2020, and April 11, 2023, a matched case-control study was conducted to investigate the association between 3036 acute stroke cases and 3036 controls drawn from the entire population of Qatar.Results:
A persistent left inferior vena cava (IVC) is a rare anomaly, with a reported incidence of only 0.2-0.5%.When present, it courses between the superior mesenteric artery and the aorta to continue as the right IVC, similar to the course of a left renal vein (LRV).This anomaly is usually asymptomatic, Pulley Wheel but there may be vague abdomin
A 49 year-old man with medical history of diabetes type 2, who presented to the ophthalmology clinic Touchless for decreased vision.His most recent hemoglobin A1c was 11.4%.His intraocular pressures were 19 mmHg OD and 35 mmHg OS.Posterior segment exam showed severe proliferative diabetic retinopathy in both eyes.Neovascularization of the iris (NVI