中山痔疮哪里治的好(中山肛门漏管手术多钱) (今日更新中)

Biogen Inc. said Tuesday it will seek federal approval for a medicine to treat early Alzheimer’s disease, a landmark step toward finding a treatment that can alter the course of the most common form of dementia.The 227

Authorities are warning parents about a new social media challenge that is sparking more than concern — it's sparking fires.Massachusetts State Fire Marshal Peter Ostroskey 190

Another blast of severe weather will start Wednesday in the central and southern United States as some areas are still recovering from last week's deadly storm.The storms will barrel into the East Coast by Friday, unleashing tornadoes, damaging winds and hail along the way, from the Texas Panhandle to the coast of the Carolinas.Over three days, the storm will affect 91 million people and unfold across about 1,400 miles, including parts of the Southeast and Mid-Atlantic that got battered over the weekend by severe storms.As the system treks east, parts of the Southeast could experience severe weather Thursday, with a large swath of the East Coast on track to feel impacts on Friday."The greatest threat will be damaging winds and very large hail, but tornadoes will also be possible," the National Weather Service said.A massive storm system killed eight people in the South over the weekend and caused damage from Texas to Mississippi. Four people died in Texas, two in Louisiana, one in Mississippi and another in Alabama.Wednesday: From Texas to Kansas Storms will begin Wednesday in the middle of the country, with the most significant threat stretching from central-southeastern Texas to southern Kansas.Large hail and isolated tornadoes are concerns for places including Dallas and Austin, Texas, and Oklahoma City.Those areas already face an "enhanced risk" of severe thunderstorms -- the third of five risk levels -- according to the National Weather Service's Storm Prediction Center.The storms, expected to organize Wednesday afternoon across the southern Plains, will become more widespread in the evening and into the night.The biggest concern is the potential for large hail, possibly 2 inches or more in diameter. Strong winds are also possible, along with the risk of a few tornadoes.Beyond the "enhanced risk" zone, a "slight risk" (Level 2 of 5) of severe storms extends from the Mexico-Texas border to Iowa. That includes densely populated areas around San Antonio; Tulsa, Oklahoma, Kansas City; Wichita, Kansas; and Shreveport, Louisiana.Thursday: From Louisiana to TennesseeAs the system pushes east, the severe weather threat will persist.Louisiana and Mississippi will be at risk Thursday morning, with the storms moving on Thursday afternoon through the evening into Alabama and Georgia. The Deep South faces a "slight risk" (Level 2 of 5) of severe storms, the Storm Prediction Center said.Cities at risk include Baton Rouge and New Orleans, Louisiana; Mobile, Birmingham and Montgomery, Alabama; and Memphis and Nashville, Tennessee.The storms are expected to continue through the night, with the potential for damaging winds and possibly a tornado.Friday: From Florida to Washington.By Friday morning, the storms will near coastal Atlantic states, bringing the potential for severe weather from Florida to Washington.The risk there will be partially dampened by the intense rainfall associated with the broad system, but conditions should still allow for a few individual storms to intensify.The threat should diminish throughout the overnight hours as the cold front associated with the potent storms finally pushes off shore. 3173

Boeing safely landed its crew capsule in the New Mexico desert Sunday after an aborted flight to the International Space Station that could hold up the company’s effort to launch astronauts for NASA next year.The Starliner descended into the Army’s White Sands Missile Range in the frigid predawn darkness, ending a two-day demo that should have lasted more than a week. A trio of red, white and blue parachutes popped open and airbags also inflated around the spacecraft to ease the impact. “We pinpoint landed it,” NASA Administrator Jim Bridenstine said at a post-landing briefing. The successful return capped a rocky start to a mission that was supposed to include a docking with the space station. Managers will review all the data before deciding whether to do another test flight or go straight to flying astronauts, said NASA’s Steve Stich. After seeing this first test flight cut short and the space station docking canceled because of an improperly set clock on the capsule, Boeing employees were relieved to get the Starliner back.Recovery teams cheered as they watched the capsule drift down through the air and make a bull’s-eye landing. The touchdown was broadcast live on NASA TV; infrared cameras painted the descending capsule in a ghostly white. As the sun rose, close-up views showed the large white and black capsule upright — with hardly any scorch marks from re-entry — next to a U.S. flag waving from a recovery vehicle. The astronauts assigned to the first Starliner crew — two from NASA and one from Boeing — were part of the welcoming committee. “A beautiful soft landing,” said NASA astronaut Mike Fincke. “Can’t wait to try it out.” It was the first American-made capsule designed for astronauts to make a ground landing after returning from orbit. NASA’s early crew capsules — Mercury, Gemini and Apollo — all had splashdowns. SpaceX’s Dragon capsule, which made its orbital debut last winter with a test dummy, also aims for the ocean at mission’s end.Minutes after touchdown, top NASA and Boeing officials poured into Mission Control in Houston to congratulate the team. The newly returned Starliner also got a personalized name: Calypso, after Jacques Cousteau’s boat.The capsule’s first trip to space began with a smooth rocket ride from Cape Canaveral on Friday. But barely a half hour into the flight, it failed to fire its thrusters to give chase to the space station and ended up in the wrong orbit. The problem was with the Starliner’s internal clock: It did not sync up with the Atlas V rocket and was off by 11 hours, according to Boeing’s Jim Chilton. The capsule burned so much fuel trying to orient itself in orbit that there wasn’t enough left for a space station rendezvous. Flight controllers tried to correct the problem, but between the spacecraft’s position and a gap in communications, their signals did not get through. They later managed to reset the clock. Boeing is still trying to figure out how the timing error occurred. The mission lasted nearly 50 hours and included 33 orbits around the Earth, about 100 orbits fewer than planned. A test dummy named Rosie the Rocketeer — after Rosie the Riveter from World War II — rode in the commander’s seat. Also returning were holiday presents, clothes and food that should have been delivered to the space station crew.Even though not all goals were met including a station docking, “in my eyes, it was a huge success,” said Boeing flight director Richard Jones.There were no parachute problems this time. Last month, only two parachutes deployed during an atmospheric test because workers failed to connect a pin in the rigging.“We didn’t do everything we wanted to do, but we don’t see anything wrong with this spaceship right now,” despite the timing error, Chilton said. He apologized to the six space station residents for not delivering their Christmas presents. Boeing had been shooting for its first astronaut launch in the first half of 2020. This capsule is supposed to be recycled for the second flight with crew; each Starliner is built to fly in space 10 times.The capsule will return to Florida’s Kennedy Space Center in two weeks for inspections and refurbishments.“We’ve got a lot of learning in front of us,” Bridenstine said. “But we have enough information and data to where we can keep moving forward in a very positive way.Despite its own setbacks, SpaceX remains in the lead in NASA’s commercial crew program.SpaceX’s Dragon crew capsule successfully completed its first orbital demo last March. While the flight to the space station went well, the capsule exploded a month later on a test stand at Cape Canaveral. If a launch abort test goes well next month, SpaceX could start launching NASA astronauts by spring and end a nearly nine-year gap in flying people from Cape Canaveral.As its space shuttle program was winding down, NASA looked to private industry to take over cargo and crew deliveries to the space station. SpaceX kicked off supply runs in 2012. Two years later, NASA hired SpaceX and Boeing to ferry astronauts to the orbiting lab. SpaceX got .6 billion under NASA’s commercial crew program, while Boeing received more than billion.The goal was to launch NASA astronauts by 2017.Because of delays, NASA is looking to buy another two seats on Russian rockets in 2020 and 2021 to guarantee a continuing U.S. presence on the space station. Even when private companies are regularly carrying up astronauts for NASA, the space agency always will reserve a seat for a Russian in exchange for a free U.S. seat on a Soyuz.Over the years, these Soyuz rides have cost NASA up to million apiece, with the tab totaling in the billions.A recent audit by NASA’s inspector general found a Starliner seat will cost slightly more than that, with a Dragon seat going for just over half the price.___The Associated Press Health and Science Department receives 5902

An herbalist has been sentenced to jail time after the death of a 13-year-old boy with Type 1 diabetes for whom he recommended treatment with herbs instead of lifesaving insulin, Los Angeles City Attorney Mike Feuer 228

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