The furan heterocycle is a dienic reagent particularly suitable for the Diels-Alder reaction and maleimides represent a typical family of complementary reagents because of their strong dienophilic ...

Posterior reversible encephalopathy syndrome is a neurological disorder characterized by swelling or inflammation in the brain. It’s often treatable if diagnosed quickly. Posterior reversible ...

According to the attendees taking to social media to share their early reactions ahead of the movie’s June 13 premiere in theaters, How to Train Your Dragon is as ...

This series was created for Google, the Buck Institute, Optispan and Phenome Health by Scientific American Custom Media, a division separate from the magazine’s board of editors. For most people, ...

HyWatts has developed the Powerplant-in-a-Box system, a reversible high temperature proton exchange membrane fuel cell that can also work as an electrolyzer, ensuring energy supply anywhere and ...

WASHINGTON — Reaction Engines Ltd., a British company that has worked for decades on an air-breathing rocket engine for spaceplanes and other hypersonic vehicles, has filed for bankruptcy. The company ...

Creative Commons (CC): This is a Creative Commons license. Attribution (BY): Credit must be given to the creator. Covalent organic frameworks (COFs) are a rapidly emerging class of crystalline porous ...

Click reactions—the subject of the 2022 Nobel Prize in Chemistry—come in many forms, but they all share a few key features. Namely, click chemistry forges new chemical bonds quickly, selectively, and ...

Sept 10 (Reuters) - Democratic Vice President Kamala Harris and her Republican rival Donald Trump faced off on Tuesday in their first presidential debate of the 2024 presidential election. Below are ...

Former President Donald Trump and Vice President Kamala Harris are squaring up in Philadelphia for what is likely to be their sole debate of this campaign. The two sparred over the debate rules with ...