成都怎么样治疗轻度脉管炎成都前列腺肥大那个医院好,成都男性治前列腺肥大,成都治疗肝血管瘤哪家医院好,成都海绵状血管瘤研治中心,成都医院精索静脉曲张科,成都治睾丸精索静脉曲张的专科医院,成都下肢静脉血栓开刀要多少钱

If you have any old Levi jeans lying around and don't want them anymore, Levi's will take them back.This week, the clothing company launched a denim buyback program through its recommerce website Levi's Secondhand. The way it works is you drop off used Levi’s jeans and denim jackets at participating stores and you'll receive a gift card in exchange.Your items will then be professionally cleaned and then listed on the Secondhand website, "keeping garments in use and out of landfills," Levi's stated on its website.According to Vogue, some of the clothing will be handpicked vintage items, but most will come directly from consumers. 644

If you were confused, no worries!Convention rules require roll call & nominations for every candidate that passes the delegate threshold.I was asked to 2nd the nom for Sen. Sanders for roll call.I extend my deepest congratulations to @JoeBiden - let’s go win in November. ???? https://t.co/uI92P3UfLn— Alexandria Ocasio-Cortez (@AOC) August 19, 2020 361

If you've ever wanted to stay at a toy store, FAO Schwarz in New York City wants to make those dreams come true.According to Airbnb, on Dec. 21, a family of four from the same NYC household can spend the night in the iconic toy store for one-night-only.The lucky family will have free rein of the two-story, 20,000-square-foot store, including a private tour and a real FAO Schwarz toy soldier. 402

House Speaker Paul Ryan endorsed Majority Leader Kevin McCarthy -- House Republicans' second in command -- to succeed him as speaker, in an interview with NBC."I think we all believe that Kevin is the right person," the Wisconsin Republican said in an interview that aired Friday. "I think Kevin's the right guy to step up."Ryan's support for the California congressman comes just days after Ryan announced he'd retire in January. Already, behind the scenes, the race for Speaker is unfolding. While Majority Whip Steve Scalise, of Louisiana, has said repeatedly he wouldn't challenge McCarthy in a head-to-head race, a leadership source told CNN earlier this week that Scalise's intention was to be ready if McCarthy couldn't garner the votes. 752

If you're interested in fish who are scary-looking, poisonous and chock-full of elaborate defense mechanisms, look no further than the stonefish, a genus of fish that populate coastal waters of the Indo-Pacific region.As if their deadly venom and spiny exteriors weren't enough, scientists at the University of Kansas have found that stonefish also have a hidden switchblade on their face that they can flick out whenever they feel like they're in danger.Scientists call the bony, blade-like protrusion a "lachrymal saber," because it is located on a bone under the fish's eyes. Also, "lachrymal saber" is just a really metal-sounding name.William Leo Smith, associate curator and associate professor of ecology & evolutionary biology at KU, first started to understand how the lachrymal saber worked 15 years ago, when he was dissecting a stonefish he kept as a pet.This is a game-changerHe tells CNN the mechanism isn't just a cool new discovery (although it's that, too). It also changes the scientific understandings and classifications of this particular type of fish."It opens up these ideas of ecological questions. Muscular systems, bone systems, nervous systems all came together to form this. What led to its evolution or use?In other words, he says, "Why do we see this accumulation of so many horrible things on one fish?"The lachrymal saber is housed inside the fish's head, and they use their cheek muscles to deploy it. Though some stonefish are venomous, the saber is not.It could be a sex thing, tooSmith says he and his fellow researchers have reason to believe the saber isn't just for warding off predators: It could be a sex thing, too."There is evidence pushing towards that," he says. "They may use this in battles with other members of their species, like ram horns. It may also be involved in courtship behaviors."Oh, and the sabers glow."It's fluorescent green," Smith says. Since stonefish rely on camouflage for both protection and hunting prey, Smith doesn't think the fluorescence has a defensive purpose like, say, warning off predators.There are 134 described species of stonefish, and by Smith's observation, all of them have some form of lachrymal saber.  2202