Amid sky-high inflation, water and energy cuts and prospects for a deal with the U. S. dimming, President Masoud Pezeshkian has apparently thrown up his hands.

© Arash Khamooshi for The New York Times

At an international conference, researchers at the forefront of animal-human transplantation compared notes and allowed themselves the first real optimism in decades.

A leading German automotive supplier said it was again allowed to ship semiconductors that Beijing had barred for export.

China’s far-reaching rules already affect manufacturers of semiconductors, cars and many other products. They will soon become much broader.