沧州透明肺段模型(银川下肢层次解剖模型（26部件）) (今日更新中)

SAN FRANCISCO (AP) — The robotic car company created by Google is poised to attempt a major technological leap in California, where its vehicles will hit the roads without a human on hand to take control in emergencies.The regulatory approval announced Tuesday allows Waymo's driverless cars to cruise through California at speeds up to 65 miles per hour.The self-driving cars have traveled millions of miles on the state's roads since Waymo began as a secretive project within Google nearly a decade ago. But a backup driver had been required to be behind the wheel until new regulations in April set the stage for the transition to true autonomy.RELATED: 2018 could be a pivotal year for driverless carsWaymo is the first among dozens of companies testing self-driving cars in California to persuade state regulators its technology is safe enough to permit them on the roads without a safety driver in them. An engineer still must monitor the fully autonomous cars from a remote location and be able to steer and stop the vehicles if something goes wrong.California, however, won't be the first state to have Waymo's fully autonomous cars on its streets. Waymo has been giving rides to a group of volunteer passengers in Arizona in driverless cars since last year. It has pledged to deploy its fleet of fully autonomous vans in Arizona in a ride-hailing service open to all comers in the Phoenix area by the end of this year.But California has a much larger population and far more congestion than Arizona, making it even more challenging place for robotic cars to get around.RELATED: NTSB report: Uber self-driving SUV saw pedestrian in Arizona but didn't brakeWaymo is moving into its next phase in California cautiously. To start, the fully autonomous cars will only give rides to Waymo's employees and confine their routes to roads in its home town of Mountain View, California, and four neighboring Silicon Valley cities — Sunnyvale, Los Altos, Los Altos Hills, and Palo Alto.If all goes well, Waymo will then seek volunteers who want to be transported in fully autonomous vehicles, similar to its early rider program in Arizona . That then could lead to a ride-hailing service like the one Waymo envisions in Arizona.But Waymo's critics are not convinced there is enough evidence that the fully autonomous cars can be trusted to be driving through neighborhoods without humans behind the wheel.RELATED: Potential "game changer" could make commutes more relaxing"This will allow Waymo to test its robotic cars using people as human guinea pigs," said John Simpson, privacy and technology project director for Consumer Watchdog, a group that has repeatedly raised doubts about the safety of self-driving cars.Those concerns escalated in March after fatal collision involving a self-driving car being tested by the leading ride-hailing service, Uber. In that incident, an Uber self-driving car with a human safety driver struck and killed a pedestrian crossing a darkened street in a Phoenix suburb.Waymo's cars with safety drivers have been involved in dozens of accidents in California, but those have mostly been minor fender benders at low speeds.RELATED: Waymo self-driving car crashes in ArizonaAll told, Waymo says its self-driving cars have collectively logged more than 10 million miles in 25 cities in a handful of states while in autonomous mode, although most of those trips have occurred with safety drivers.Waymo contends its robotic vehicles will save lives because so many crashes are caused by human motorists who are intoxicated, distracted or just bad drivers."If a Waymo vehicle comes across a situation it doesn't understand, it does what any good driver would do: comes to a safe stop until it does understand how to proceed," the company said Tuesday. 3827

SANTEE, Calif. (KGTV) — A dream trip to Africa for a Santee grandmother turned into a nightmare as she sat in a tour bus.Daughter-in-law Tomira Baca-Craig says Jeanette Craig, who retired four years ago, left for South Africa two weeks ago. Jeanette had been saving for the trip for more than a year.  It was her first trip to Africa.A few days after she arrived, she was on a tour bus headed to an animal preserve in the landlocked country of Lesotho when the bus overturned, killing three and injuring more than 12 tourists on board, including Jeanette."Because she had her seatbelt on, she wasn't thrown. She was trapped upside down. When the bus rolled, that's when she sustained all her injuries," said Baca-Craig.Jeanette was transported by helicopter to a clinic just outside Lesotho. She has since undergone several surgeries, suffering a fractured pelvis and leg, and torn ligaments in her legs."Now her pain is just shocking. There's a ton of breakthrough pain every time she shifts because the pelvis is bone on bone," said Baca-Craig.Jeanette is comforted by her daughter, who just arrived in South Africa. Loved ones say they just want to bring her home.  "We'd like to get an MRI and another CT scan to and rule out everything else because it was such a traumatic accident," said Baca-Craig. The problem? The trip insurance Jeanette purchased will only cover the original medical evacuation, not a second one to the U.S., which will cost upwards of 0,000. 1500

SAN PEDRO SULA, Honduras — Hundreds of Hondurans devastated by recent hurricanes have been stopped as they tried to walk towards the United States in the latest attempt at a migrant caravan.Roughly 600 men, women and children tried to walk from the northern city of San Pedro Sula toward the border with Guatemala. But on Thursday they were stopped by Honduran security personnel, who demanded they show papers and coronavirus tests.Hundreds of thousands of Hondurans remain homeless after the November hurricanes. There are concerns about safety at some of the shelters and the potential of rapid coronavirus spread.Last week, Honduran President Juan Orlando Hernández asked for U.S. help, warning that food shortages as a result of crop loss caused by Hurricanes Eta and Iota could spur more migration to the U.S.Aid agencies report nearly 7 million people between southern Mexico and Colombia are in need of assistance following the catastrophic storms, according to NPR.Hurricanes Eta and Iota both came ashore as dangerous Category 4 storms on November 3 and November 17 respectively, making landfall in roughly the same region along the border between Nicaragua and Honduras."Hurricane Eta affected almost all of Central America, including Panama, Costa Rica, Guatemala, Honduras, Belize and Nicaragua," Steve McAndrew, deputy regional director, for the International Federation of Red Cross and Red Crescent Societies told NPR. "And then the second hurricane Iota also had a direct hit on the San Andreas Islands, which are part of Colombia. There's heavy damage and the region's been heavily affected."The region continues to dig out from mudslides. It appears Honduras took the brunt of the storms as they came ashore and slowed down, with more damage and more deaths than Nicaragua.Mudslides in both countries destroyed basic infrastructure like roads, bridges, health clinics and schools; families lost their homes, farms and businesses. 1956

SANTA ANA (CNS) - Orange County reported 713 newly confirmed cases of COVID-19 and six more deaths Friday, bringing the county's totals to 15,778 cases and 360 deaths.The new numbers came as most of the county's coastal cities prepared to close their beaches for the Fourth of July holiday weekend to prevent further community spread of the virus.The county's cases included 1,208 residents of skilled nursing facilities, 406 jail inmates and 108 homeless people, according to the OC Health Care Agency.The six deaths announced Friday were three skilled nursing facility residents and three county residents who were not living in a care facility. The total number of fatalities include 184 residents of skilled nursing facilities and 14 residents of assisted-living facilities.The number of hospitalized patients in Orange County rose from 556 Thursday to 584, with the number of patients in intensive care dropping from 193 to 187.County officials reported that they had performed 253,991 COVID-19 tests, with 8,075 documented recoveries.County CEO Frank Kim said the decision to close county beaches on Saturday and Sunday was made to align with most major cities along the coast, and out of concern that with indoor dine-in restaurants and bars closed the county's beaches would be more overrun than usual during the holiday weekend.County-operated beaches affected by the order are Aliso, Carmel Point, Table Rock, Thousand Steps, Treasure Island and West Street in Laguna Beach as well as Capistrano, Sal Creek, Baby and Strand in Dana Point and Poche in San Clemente and Bayside in Newport Beach.Gov. Gavin Newsom announced Wednesday that state beaches would also be closed in counties that close their coastline. Doheny, one of the more popular coastal points in the county, is a state beach in Dana Point.Kim said any time large groups of people congregate there is a risk of spreading the virus, but, "We believe there is a much lower risk in outdoor settings."Newport Beach, Laguna Beach, Huntington Beach and Seal Beach had already announced plans to close beaches for the holiday in light of spiking numbers of COVID-19 cases.San Clemente will be under a soft closure with only parking lots closed through Sunday, but Mayor Pro Tem Laura Ferguson said she does not wish to close the beaches.In Newport Beach, the decision to close beaches from 10 p.m. Friday to 6 a.m. Sunday followed news that two seasonal lifeguards in the city had tested positive for the coronavirus, and nearly two dozen others were placed in quarantine.Mayor Will O'Neill said some of the other lifeguards were showing symptoms. He noted the fastest growing demographic of infected patients are in their 20s and 30s."They're going to bars, going to house parties, not doing a great job of social distancing," O'Neill said, adding that he hopes they will now "take this seriously" as officials have to retreat on business and beach activity."I cannot in good conscience add more onto our lifeguards," he said. "We just can't responsibly ask our lifeguards to do more with less."O'Neill also implored beachgoers to stay away during the holiday weekend."Don't make our lifeguards and police chase you off," he said. "This is a hard enough year... This is a time we step up to where we need to be."The Huntington Beach City Council voted in an emergency meeting Wednesday night to close all city beaches, Huntington Harbor beaches, Sunset Beach and the Pier on July 4.Seal Beach's City Council voted to close its beaches and parking lots from 6 p.m. Friday through Sunday at sunrise.On Thursday, Kim and Orange County Health Care Agency Director Dr. Clayton Chau, who is also serving as the county's chief health officer, addressed a gaffe in the county's reporting of coronavirus test numbers in the county.County officials have been receiving results for both PCR swab tests and blood-based serology tests. PCR tests are considered much more accurate because a specimen is tested, but there is a high error rate for many serology tests, which measure antibodies created after someone gets infected.The number of both types of tests the county was receiving were combined on May 28, a mishap discovered on June 3, Chau said. County officials stopped reporting both numbers at that point because the serology tests are not as reliable, Chau said.Officials intended to correct the numbers it was reporting on the county's website, but a newly redesigned site was delayed until June 26 when the corrected data was made public -- meaning incorrect testing data was provided for several weeks, Chau said.Kim and Chau said they should have informed the public and county board earlier of the mistake. Orange County Board of Supervisors Michelle Steel said at a news conference Thursday she found out about it from a report in The Orange County Register.Kim said the mistake did not factor into the county's application to the state to open up businesses, because the data came from the state and California public health officials were aware of the difference.Orange County's three-day average increase of hospitalized patients is 11.4%, which exceeds the state's threshold of 10%.Health officials insisted Orange County is in good shape in terms of hospital beds available. The county has 36.1% of its intensive care unit beds available, above the state threshold of 20%, and has 63.5% of its ventilators available, above the state standard of 25%.Sheriff Don Barnes, who has been criticized for declaring at a Board of Supervisors meeting that he did not intend to be the "mask police," issued a statement on Thursday saying that face coverings are "important" to fight the spread of the virus.Barnes said it was impractical to enforce face-covering mandates."As many other industries are gaining compliance through an education- first approach, deputies will continue to educate the public about the statewide face-covering requirement and will request voluntary compliance," Barnes said."During this time of strained police community relations, one only needs to look to New York and other jurisdictions where enforcement has resulted in uses of force and negative outcomes to recognize that an education- first strategy, aimed at obtaining voluntary compliance, is the most sensible and realistic approach."I expect that Orange County residents will continue to use common sense and responsibly wear a face covering, in addition to other recommended best practices such as frequent hand washing and maintaining physical distance, for the benefit of their own health as well as the collective health of the community. We must do what is necessary to stop the transmission of COVID-19."Newsom this week said he has established "strike teams" of state officials who will seek to enforce compliance with COVID-19 guidelines.Kim told reporters "enforcement can be a challenge" for county officials because they do not always have jurisdiction. In many cases it is up to local cities to enforce regulations, Kim said. 7001

School choice can mean a lot of things, and for some parents, it means homeschooling.Elizabeth Bell, who lives in Fairfax County, Virginia, made the decision to homeschool her five children—ages 12, 9, 6, 4 and 2."We have a syllabus,” explains Bell. “It's like, day by day, check it off."Bell says she made the decision to homeschool her children after giving public school a try."One complaint of Zacharies, when he was at school this year, was 'Mom, I can only eat two times a day?” Bell jokes. “That was really hard for him.”Other factors that went into Bell’s decision were cost, control, safety, and individualized care. The most important? Freedom."Homeschooling is so flexible that you don't have to do it during the hours of 9 and 3,” explains Bell. 770

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