In the presence of (−)-sparteine or a (+)-sparteine surrogate, organolithiums add to N-alkenyl-N′-arylureas to give benzylic organolithiums in an enantioselective manner. Under the influence of DMPU, ...

You’ve probably heard the claim that it takes more muscles to frown than to smile. It’s usually framed as a feel-good reason to turn your frown upside down – less effort, more joy.

A catalytic asymmetric House–Meinwald rearrangement for the synthesis of both cyclic and acyclic ketones is disclosed. From readily accessible racemic tetrasubstituted epoxides, this approach provides ...

Named after 19th-century French neurologist Guillaume Duchenne de Boulogne, the Duchenne smile activates two key muscle groups.The first group is associated with the corners of the mouth – where, for ...

You've probably heard the claim that it takes more muscles to frown than to smile. It's usually framed as a feel-good reason to turn your frown upside down—less effort, more joy. But ...

Guys notice a lot about your smile, and it plays a vital role in how and why they become attracted to you. These eight real-life men reveal the subtle things your smile says about you.

Intramolecular proton transfer-induced photo-rearrangement in diarylethenes. Chinese Chemical Society. Journal CCS Chemistry DOI 10.31635/ccschem.025.202405382 ...

Newly released video shows two UK prisoners breaking into giant smiles moments before they viciously beat a convicted sex offender to death in his cell. Footage released Thursday shows a shirtless ...

On Monday, June 2, Robin Thicke shared a black-and-white photo with his blended family from his wedding to April Love Geary. The family posed with bright smiles, dressed in their wedding attire.

Todd Chrisley was in good spirits while shopping with his daughter Savannah Chrisley at Nordstrom in Nashville, Tenn., in the first sighting since his prison release.

Sometimes that million-dollar smile really does cost a pretty penny. As Alec Baldwin joked in the SNL50 special earlier this year, “All new cast members arrive here with no money and jacked-up ...

Read the full review: What happened when PRESIDENT played Download Festival 2025 ...