The therapeutic efficacy of the cardiac glycoside digitoxin in patients with heart failure and reduced ejection fraction is not established. In this international, double-blind, placebo-controlled ...

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(NEXSTAR) – In case gas prices weren’t high enough already, there’s always that pesky fraction added onto the end: nine-tenths of a cent tacked on to every gallon. You’ll usually see this odd pricing ...

Prime numbers—numbers divisible only by 1 and themselves—have long fascinated mathematicians. This year a researcher discovered the largest known prime number, with a whopping 41,024,320 digits. It ...

Fractions are a foundational piece for tackling mathematics at all levels of schooling. Students need to understand how two numbers interact with each other as numerators and denominators, as ratios, ...

ChatGPT has already wreaked havoc on classrooms and changed how teachers approach writing homework, since OpenAI publicly launched the generative AI chatbot in late 2022. School administrators rushed ...

AlphaProof and AlphaGeometry 2 are steps toward building systems that can reason, which could unlock exciting new capabilities. AI models can easily generate essays and other types of text. However, ...

About 99% of the Earth’s atmosphere is made of just two gases: oxygen and nitrogen. By comparison, the amount of carbon dioxide — which at more than 400 parts per million, is the highest it’s been in ...

Katie has a PhD in maths, specializing in the intersection of dynamical systems and number theory. She reports on topics from maths and history to society and animals. Katie has a PhD in maths, ...

Ejection fraction (EF) measures the amount of blood pumped out of your heart's lower chambers, or ventricles. It's the percentage of blood that leaves your ventricle when your heart contracts. The ...