Kyle C. Garrison

For all the fears of an outbreak of fighting in the Middle East that could draw the United States, Israel and Iran into direct combat, a curious feature of the conflict so far is the care taken — in both Tehran and Washington — to avoid putting their forces into direct contact.No one knows how long that will last, American and European diplomats and other officials say. But 100 days into the conflict, the assessment of most of the key players is that Iran has pushed its proxies to make trouble for the American military and to pressure Israel and…

There is a problem with the recently approved Alzheimer’s drug, Aduhelm. It can remove some of the amyloid that forms brain plaques that are hallmarks of the disease. But most of the drug is wasted because it hits an obstacle, the blood-brain barrier, that protects the brain from toxins and infections but also prevents many drugs from entering.Researchers wondered if they could improve that grim result by trying something different: they would open the blood-brain barrier for a short time while they delivered the drug. Their experimental method was to use highly focused pulses of ultrasound along with tiny gas…

The only place a reverse happens in the NFL is on the field. The league rarely moves backward when it comes to increasing its media rights coffers. If you were to place a wager on whether Saturday’s first-ever exclusive, live-streamed NFL playoff game is going to be repeated in the future, you’d be wise to bet big on the same thing happening during the 2024 postseason.Hans Schroeder, the NFL’s executive vice president of media distribution, nearly said as much during a conference call with reporters three days before the game.“As it relates to the wild-card game exclusively, we’re excited to…

Despite staunch resistance from his opponents in the government, the anticorruption crusader Bernardo Arévalo was inaugurated early Monday morning as Guatemala’s president, a turning point in a country where tensions have been simmering over widespread graft and impunity.His inauguration had been scheduled for Sunday, but members of Congress delayed it, and concerns persisted about whether it would happen at all. But after an international outcry and pressure from protesters, Mr. Arévalo was sworn in shortly after midnight, becoming Guatemala’s most progressive head of state since democracy was re-established in the 1980s.His rise to power — six months after his victory…

The Quaker Oats Company added more products this week to a recall that started last month over possible salmonella contamination, raising the total number of products to more than 60.Quaker Oats, which is owned by PepsiCo, initially recalled 43 products, including granola bars, cereals and various snack foods. On Thursday, the company added 24 products to the list.The newly recalled items include Quaker Chewy Granola Bars, Gatorade protein bars, Cap’n Crunch bars, Quaker Simply Granola Cereals, Gamesa Marias Cereal and other cereals.“To date, Quaker has received no confirmed reports of illness related to the products covered by this recall,” the…

It was late September when Naomi Osaka, the four-time Grand Slam champion and transcendent star of her sport, finally got on the phone with her former coach to talk about her next comeback. Wim Fissette is a cerebral Belgian who thinks long and hard before taking on a player, even one with a resume like Osaka’s. He had one, very serious question.Is it going to be different this time?There was then another conversation, with Florian Zitzelsberger, a 34-year-old German who is one of the most respected strength and conditioning coaches in the world. Zitzelsberger had worked with Osaka before, too. He…