呼市大便肛门很疼(呼和浩特肛瘘手术呼和浩特医保) (今日更新中)

HOUSTON (AP) — Houston officials have canceled the Texas GOP’s in-person convention.They say the spread of the coronavirus made it impossible to hold the event as scheduled.Houston Mayor Sylvester Turner said Wednesday that the city’s lawyers exercised provisions in the contract that the Texas Republican Party signed to rent the downtown convention center for a three-day event to have started July 16.Virus cases have surged in Texas, particularly in the state’s largest cities.Republican Gov. Greg Abbott had publicly deferred to state party leaders who last week voted to go forward with an in-person event. 620

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

IMPERIAL BEACH, Calif. (KGTV) - Imperial Beach residents are being told by city officials to clean up - or pay up.Some 20 homeowners received a code enforcement letter last month indicating they needed to remove debris from their backyards.The letter read in part: 272

If you happen to be at a Arizona Cardinals football game, you might want to take The Gridiron Challenge.The Gridiron Burger is a 7-pound burger that is made with five beef patties, five hot dogs, five bratwurst, eight chicken tenders, 20 slices of American cheese, eight slices of bacon, lettuce, pickles and French fries.The burger costs . However, if you can eat everything in one hour, you do not have to pay for it and your photo will be placed on a special wall. READ MORE 493

HOUSTON (AP) -- A federal judge has ordered the Trump administration to stop expelling immigrant children who cross the southern border alone, halting a policy that has resulted in thousands of rapid deportations of minors during the coronavirus pandemic.U.S. District Judge Emmet Sullivan on Wednesday issued a preliminary injunction sought by legal groups suing on behalf of children whom the government sought to expel before they could request asylum or other protections under federal law.The Trump administration has expelled at least 8,800 unaccompanied children since March. 590

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