The GeForce RTX 3090 Founders Edition runs hot, as we discovered last month when we reviewed NVIDIA’s flagship GeForce card. While NVIDIA has equipped the Founders Edition with an innovative cooling solution, it struggles to cool the card’s 24 GB of GDDR6X VRAM. In our tests, for example, we measured hotspots of 84 °C around…
Samsung seems to be preparing a refreshed range of laptops with Tiger Lake-H45 CPUs and GeForce RTX 30-series GPUs. (Image source: Nvidia/Samsung – edited)Another Samsung laptop has appeared on Geekbench with a potent combination of Ampere-based GPU and Tiger Lake CPU. The possible Samsung Notebook 7 Force device featured an Nvidia GeForce RTX 3050 Ti…
Nikolai Petrovsky was scrolling through social media after a day on the ski slopes when reports describing a mysterious cluster of pneumonia cases in Wuhan, China, caught his eye. It was early January 2020, and Petrovsky, an immunologist, was at his vacation getaway in Keystone, Colorado, which is where he goes most years with his…
Facebook says it has created a wristband that translates motor signals from your brain so you can move a digital object just by thinking about it. How does it work? The wristband, which looks like a clunky iPod on a strap, uses sensors to detect movements you intend to make. It uses electromyography (EMG) to…
Welcome to Ethics Consult — an opportunity to discuss, debate (respectfully), and learn together. We select an ethical dilemma from a true patient care case. You vote on your decision in the case and, next week, we’ll reveal how you all made the call. Bioethicist Jacob M. Appel, MD, JD, will also weigh in with…
Among Black people with vitamin D levels below 40 ng/mL, risk of testing positive for COVID-19 was more than twice that of those with levels of 40 ng/mL or greater, according to a single-center retrospective cohort study. Compared to levels of 40 ng/mL or greater, a positive test result for COVID-19 was associated with vitamin…
The American College of Rheumatology (ACR) has issued a guidance document about COVID-19 vaccinations for patients with rheumatic and musculoskeletal diseases (RMDs). Included is information on general concerns and foundational principles, timing of vaccination, and adaptations to therapy. ACR cautioned, however, that the recommendations are still conditional and are based on indirect evidence derived from…
Ketamine treatment has received a lot of attention in recent months. In research studies, ketamine has been shown to be helpful in the treatment of refractory depression, bipolar depression, and obsessive-compulsive disorder, in addition to a variety of refractory pain disorders. More studies are underway looking at additional psychiatric and psychological indications for ketamine treatment.…
The FDA approved oral ponesimod (Ponvory) to treat relapsing forms of multiple sclerosis (MS), including clinically isolated syndrome, relapsing-remitting disease, and active secondary progressive disease, drugmaker Janssen announced Friday. Ponesimod is a selective modulator of the sphingosine-1 phosphate receptor, like two other approved MS drugs, fingolimod (Gilenya) and siponimod (Mayzent). Binding of the drug to…
The items below are highlights from the free newsletter, “Smart, useful, science stuff about COVID-19.” To receive newsletter issues daily in your inbox, sign up here. For an explanation of why vaccines, in general, do not protect us for at least several days or even weeks after a final shot, see Katherine J. Wu’s 3/17/21…
