β - 淀粉样蛋白（1 - 38）在生理条件下可形成 β - 折叠结构，这种结构由多个肽链片段通过氢键相互作用形成。其 N 端相对无序，而 C 端则具有较高的 β - 折叠倾向，容易聚集形成寡聚体和纤维状结构。在形成纤维时，多个 β - 折叠片层相互堆积，形成高度有序 ...

Miguel Candela/SOPA Images/LightRocket via Getty A Japanese restaurant, known as the country's leading Gyudon chain, has temporarily closed nearly 2000 of its stores after a rat and bug were found ...

Alexandra Hildebrandt, 66, welcomed her 10th child on March 19 in Berlin. In spite of the dangers of late-age pregnancies, her healthy lifestyle and the support of family members enabled her to ...

She was 66. “Lisa was a kind and gentle soul, whose brilliance, creativity, resilience and empathy, illuminated the lives of her family, friends and fans alike,” the announcement on Smith’s ...

A 66-year-old woman in Germany has given birth to her 10th child. Alexandra Hildebrandt, owner of the Wall Museum at Checkpoint Charlie in Berlin, welcomed her new son, Philipp, on March 19 ...

Smith was best known as the author of The Vampire Diaries, which sold millions of copies and became a hit TV show. The author was also known as a prolific ghostwriter who would repossess her ...

Author L.J. Smith has died at age 66. “Lisa Jane Smith of Danville, California passed away peacefully on Saturday, March 8, 2025, after a long bout with illness,” an obituary on the writer’s ...

In February 2024, Sean Diddy Combs faced a $30 million lawsuit by music producer Rodney Lil Rod Jones. His complaint alleged that while working on Combs’ album, he was subjected to unwanted advances, ...

HOT ROD has consistently promoted the theory that ... the car reimagined and modified with a brawny U.S.-built Ford powerplant installed under its bonnet. The Cobra has gone on to achieve ...

Japanese beef-bowl chain Sukiya has announced that miso soup served at one of its locations in January contained a rat. The company said the contamination occurred at a restaurant in the western ...

The automotive giant’s AI chief said AI agents, open source models, including those from Chinese company DeepSeek, and future generations of Nvidia chips will be key to helping it compete ...

“He’s turned on his friends. He’s turned on America’s friends and our allies. He’s a rat and a coward when you think of it that way,” Casey said of the second-term Republican who has ...