郑州近视性弱视是怎么回事(郑州近视眼咨询) (今日更新中)

Two people are dead after a police chase ended in a crash in Cleveland Tuesday morning.A car being chased by Shaker Heights (Ohio) police crashed into a tree at East 151st and Harvard Avenue around 2:20 a.m., according to police.Cleveland police said they believed the car was being chased because it was stolen.This man was walking home and saw part of the chase. He's pretty fired up & worried that innocent people could've been killed. @WEWS pic.twitter.com/VJJuGekjW8— Sarah Phinney (@sarahphinneytv) February 20, 2018 539

University of Maryland's football coach and athletic director will keep their jobs after an investigation into the death of Jordan McNair, a 19-year-old offensive lineman who died of heatstroke two weeks after taking part in an offseason conditioning session.The announcement was made Tuesday by the University System of Maryland board of regents.Wallace D. Loh, president of the University of Maryland, said he planned to retire next year after helping implement reforms that improve the well-being of athletes.Coach D.J. Durkin and some members of the athletic staff have been on administrative leave since August. The university parted ways with its strength coach, Rick Court. 688

Twitter CEO Jack Dorsey says "we're ready to question everything" about the social networking site that has been overrun by spam, abuse and misinformation.Dorsey says he and his team are working extensively behind the scenes to stamp out some of the harassment and hate speech that has generated bad headlines lately.But it is a long-term effort, he says, and he is reluctant to commit to an exact timetable for certain changes to Twitter's foundation.In twelve years, "we've changed a lot. But we haven't changed the underlying fundamentals," Dorsey told CNN in an in-depth interview at the company's headquarters on Friday.The basic fundamentals are what he is examining now. For instance: What does Twitter incentivize its users to do?"Every product decision we make is 'telling' them to do something," Dorsey said.So he is thinking about how to help users follow topics and hashtags, not just people."We are aware of some of the silos and how we're isolating people by only giving them crude tools to follow accounts. We need to broaden our thinking and get more back to an interest-based network," he said.Related: Twitter's Jack Dorsey: 'We are not' discriminating against any political viewpointDorsey is also rethinking how follower counts and "likes" on posts are displayed, because the race to gain followers and likes may encourage outrageous behavior.His view is that Twitter needs to be much more "transparent" and open about its actions. But that transparency, some of which was on display during Dorsey's media tour this month, means asking questions without actually answering them.Among the questions Dorsey asked in the CNN interview: "How do we earn peoples' trust?" and "How do we guide people back to healthy conversation?"While he may get credit for asking big, philosophical questions about how his site operates, Dorsey remains vulnerable to criticism about Twitter's inaction.He responded to that by saying "we are taking a lot more action than we ever have in the past." But much of the action is invisible to users, he asserted.For example: The disabling of bot networks and other suspicious accounts. Dorsey said Twitter challenges "10 million accounts every single week to see if they're automations or humans," and takes action accordingly.But Twitter's stock plunged last month when its quarterly earnings report showed a decline in user growth, which the company attributed to its efforts to clean up the site, akin to gardeners removing weeds.Nonetheless, Dorsey is committed to what he calls "conversational health" -- the quality of an exchange on Twitter -- which he is trying to measure with the help of two research groups. He said investors should take a look at the long-term trends: "We see this as necessary and right and we believe in it and we have conviction around it, and we'll take the hit in the short term."Related: Twitter is purging suspicious accounts from your follower countHe also asserted that "over the short term, a lot of this work is invisible, and over the long term, it starts to add up."As for some of the specific changes, like a rethinking of the like button, Dorsey was reluctant to talk about a timeline."We're looking and thinking about all these things right now," he said. So: By the end of the year? "I worry about a time frame like that," he said, "because we also need to take into consideration -- we're a small company. I mean we, in comparison with our peers, we're a small company, but we have this outsized impact and I believe, importance."Later, he added, "We have to understand first the problem we're trying to solve, like what incentives we actually want to drive; not just what we want to remove, but what we want to drive." But he said he knows he wants incentives "that encourage people to talk and to have healthy conversation." 3824

VALLEY CENTER, Calif. (KGTV) - A fire broke out Friday afternoon in Valley Center, threatening the small north San Diego County community.The flames were reported about 1:30 p.m. in brush near Miller Lane and Cole Grade Lane, an area surrounded by farms and homes. The cause was unknown, Cal Fire said.At 10 a.m. Saturday, Cal Fire lifted all evacuations. #MillerFire in Valley Center [update] Effective immediately all evacuation orders have been lifted. Access to Coyote Run and Rabbit Run will be limited to residents only. Fire crews will remain at scene throughout the day, so please drive with caution when in the area. pic.twitter.com/twGTkf45b2— CAL FIRE/SAN DIEGO COUNTY FIRE (@CALFIRESANDIEGO) October 26, 2019 Children in grades K-8 were already out of school Friday due to parent-teacher conferences, according to Pauma Valley school district officials. Valley Center High School initially had students shelter in place but children were in the process of being transported off campus about 2:30 p.m. Video showed several school buses in front of the campus.As of Sunday morning, Cal Fire said the fire burned 37 acres and was 90 percent contained. One home was damaged and three outbuildings were destroyed.See Interactive Map of Southern California wildfiresA Friday night football game between Valley Center and Escondido High Schools was canceled due to the blaze. SDG&E's Sky Maverick, which assisted in the Sawday fire in Ramona Friday morning, was deployed to Valley Center, according to Twitter.Check 10News Pinpoint WeatherThe San Diego Imperial Counties Red Cross sent a volunteer team to the Valley Center Community Center to provide support for evacuees. It’s an eerie sight up Coyote Run. Hot spots from #Millerfire still sparking on both sides of the road. Crews are mopping them up just a few yards from homes trying to protect them from flare-ups. Live coverage on @10News pic.twitter.com/Lkm0HcDwOG— Jeff Lasky (@10NewsLasky) October 25, 2019 1983

Uber and Lyft are pushing a proposition this November they say is vital to their survival in California.And the ads are already starting. At issue is Proposition 22, which would carve an exemption into state law to allow the rideshare companies to continue employing drivers as independent contractors. Otherwise, they would have to reclassify the drivers as employees, guaranteeing them a swath of rights and protections, as mandated by Assembly Bill 5, which the state passed in 2019. Prop 22 would allow the rideshare companies to continue employing drivers as independent contractors, but guarantees them a minimum pay and also money for health insurance once they work a certain number of hours. "I only do this because it fits my lifestyle and what I do," said Chelsea Scott, a San Diego musician who drives for Uber and Lyft. "We're not getting benefits. We don't get any of those things, and I knew that coming into this. This wasn't a trick of any kind."Uber, Lyft, and Doordash released a new 30-second television ad that makes claims about the timing and impact of the law. First, it says California politicians passed AB 5 amid skyrocketing unemployment. Truth be told, the bill was signed into law in September 2019, before the coronavirus was even discovered. At the time, the state's unemployment rate was 4.2%. In August, it was 13.3%.However, the ad follows that with a key point, under AB 5, it will be illegal for rideshare drivers to operate as independent contractors in California. The narrator says that is "threatening to shut down rideshare and food delivery services." Truth be told, AB 5 does not shut down the services, but the services themselves could make the decision to shut down, which Uber and Lyft threatened to do in California last month after a court decision did not go in their favor. San Diego employment attorney Dan Eaton says overall the core point of the ad stands that jobs could be cut."They're saying, 'All right, fine, don't do this, but then don't complain when Uber and Lyft pull out of California,'" he said. The ad says Prop 22 "protects" drivers' abilities to work as independent contractors and saves critical jobs. For voters, however, it's all about whether they see being an independent contractor as protection in and of itself. 2296

来源：资阳报