济南蒲公英泡水可以治痛风(山东怎样减少尿酸生成) (今日更新中)

Multiple deaths are being blamed on flooding and torrential rains in North Carolina. At least six people, including a child, have died so far.More than 30 campers were rescued Thursday morning from flash flooding at a campground about 60 miles northwest of Charlotte. 275

MOSCOW (AP) — Russia is boasting that it’s about to be the first country to approve a COVID-19 vaccine, with mass vaccinations planned as early as October using shots that are yet to complete clinical trials. But scientists worldwide are sounding the alarm that the headlong rush could backfire and point to ethical issues that undermine confidence in the Russian studies. Moscow sees a Sputnik-like propaganda victory, recalling the Soviet Union’s launch of the world’s first satellite in 1957. But the experimental COVID-19 shots began first-in-human testing on a few dozen people less than two months ago, and there’s no published scientific evidence yet backing Russia’s late entry to the global vaccine race, much less explaining why it should be considered a front-runner.“I’m worried that Russia is cutting corners so that the vaccine that will come out may be not just ineffective, but also unsafe,” said Lawrence Gostin, a global public health law expert at Georgetown University. “It doesn’t work that way. ... Trials come first. That’s really important.”According to Kirill Dmitriev, head of Russia’s Direct Investment Fund that bankrolled the effort, a vaccine developed by the Gamaleya research institute in Moscow may be approved in days, before scientists complete what’s called a Phase 3 study. That final-stage study, usually involving tens of thousands of people, is the only way to prove if an experimental vaccine is safe and really works. 1467

NASA's OSIRIS-REx mission and the asteroid Bennu have had a date planned for two years, and just after noon ET today, they finally got to meet face to face. OSIRIS-REx fired its thrusters for a small burn, putting it about 4.3 miles from Bennu, marking the end of its journey to the asteroid.The mission -- which stands for Origins, Spectral Interpretation, Resource Identification, Security-Regolith Explorer -- is NASA's first asteroid sample return mission. It launched in September 2016 and will spend two years up close and personal with Bennu. First images of the asteroid from the spacecraft's perspective have appeared as it got closer and closer.On Tuesday, the spacecraft will fly within 5 miles of Bennu, which will help design future orbits and map the surface.Over the next year, OSIRIS-REx will survey the asteroid using five scientific instruments on board the spacecraft. These instruments will help it determine a safe location from which to collect a small sample from Bennu's surface that will be returned to Earth in September 2023."Bennu's low gravity provides a unique challenge for the mission," said Rich Burns, OSIRIS-REx project manager at NASA's Goddard Space Flight Center. "At roughly 0.3 mile in diameter, Bennu will be the smallest object that any spacecraft has ever orbited."The sample from Bennu, a near-Earth asteroid, could help scientists understand not only more about asteroids that could impact Earth but about how planets formed and life began.OSIRIS-REx has a camera suite, a laser altimeter for 3D mapping, a thermal emission spectrometer to take temperature and mineral content and spectrometers to measure X-rays, nearly infrared and visible light.An arm mechanism called TAGSAM will reach out to collect the sample from Bennu's surface, making contact with the asteroid for five seconds in July 2020. During this contact, the arm will use a nitrogen gas burst to stir up rock and other materials on the surface so it can capture them. There is enough nitrogen for three attempts if the first is unsuccessful.NASA said the estimated 2.1-ounce sample size equates to about 30 sugar packets worth of dirt and rocks.The arm has a full range of motion, with joints capable of movement comparable to shoulder, elbow and wrist joints. It was "flexed" in space for the first time on November 14."The TAGSAM exercise is an important milestone, as the prime objective of the OSIRIS-REx mission is to return a sample of Bennu to Earth," said Dante Lauretta, OSIRIS-REx principal investigator at the University of Arizona, Tucson. "This successful test shows that, when the time comes, TAGSAM is ready to reach out and tag the asteroid."In 2021, it will be time for the spacecraft to essentially turn around and begin its two-year journey home. The sample will be packed into a capsule that will drop in the Utah desert in 2023.For two years after the return, the sample will be cataloged and analyzed. Afterward, 75% of the returned sample will remain at NASA's Johnson Space Flight Center so it can be used for more research by scientists from around the world.Why did NASA select Bennu out of the 780,000 known asteroids in our solar system?It was discovered in 1999, and scientists have been studying it ever since. The asteroid fits a number of criteria that make it intriguing and convenient.Bennu is relatively close to Earth, and its orbit even crosses that of our planet, making a close approach every six years. Though small asteroids can rotate very quickly, Bennu has a diameter just a bit bigger than the height of the Empire State Building and rotates relatively slowly, each 4.3 hours. This means OSIRIS-REx can match its velocity and touch down briefly.The asteroid could pass close to Earth, closer than the moon, in 2135, with even closer approaches possible in 2175 and 2195. A direct hit is unlikely, but the data gathered during this mission can help determine the best ways to deflect near-Earth asteroids.The asteroid is also old and well-preserved, full of valuable materials that may even contain clues about how life began. Bennu is essentially a leftover from the formation of our solar system billions of years ago, although some of the minerals inside it could be even older.This carbon-rich asteroid could be full of organic molecules, metals, platinum and even water -- the essential ingredients for life. It's because of objects like Bennu that these resources were delivered to Earth during its formation.Asteroids could even serve as fuel stations for robotic and human missions if we can unlock the hydrogen and oxygen inside them, NASA said.Bennu probably broke off of a larger asteroid in the asteroid belt between Mars and Jupiter a couple billion years ago. This knocked it through space until an orbit close to Earth locked it in place. And Bennu is believed to be a grouping of rocks held together by gravity rather than a single object.But its orbit drifts 0.18 miles each year toward the sun, and OSIRIS-REx will enable researchers to understand why and to predict Bennu's movements. This could also explain how it ended up as a near-Earth asteroid."The story of this asteroid is the story of the solar system," said Bashar Rizk, instrument scientist for OSIRIS-REx. "When we understand Bennu, we will understand something fundamental about our solar system."The-CNN-Wire 5356

MISSION VALLEY, Calif. (KGTV) - About 100 military family members spent Thanksgiving at Dave and Busters, hosted by Lincoln Military Housing.The event was for families with service members currently deployed.Families enjoyed a full Thanksgiving meal and even got free game tokens to enjoy the arcade. 308

MILWAUKEE -- A Milwaukee family is devastated by the sudden loss of a young man. 21-year-old Nasir Matthews collapsed and died Tuesday while playing pick-up basketball. Terrell Matthews was there as his cousin and best friend fell to the ground after a game."The second game ended, he went over to the fan, leaned over for a second and he just went out," Matthews said. "Everything started happening so fast."Matthews said at first, everyone thought he was joking around. "After about 30 seconds they all started to see his eyes were just a blank stare," Matthews said.Matthews called 911 as others tried to revive him with a defibrillator at the school. Despite their efforts, Matthews was pronounced dead a short time later."At this point, we don't know why he fell out," said Matthews' aunt Camille Rose. "He didn't have any known medical condition other than an enlarged heart." Rose said this brings another round of grieving for Matthews' younger siblings who can't seem to catch a break. "The kids were all trying to deal with the loss of their mother, their grandmother and basically their father," Rose said.  Through the tears, Matthews looks back at the memories he shared with his cousin. "He was always happy, even through what he's been through," Matthews said.  The tragedy serves as a painful reminder to never take a loved one for granted, no matter their age. Matthews' family is still waiting on autopsy results to find out exactly why he died.  1522

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