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Humans may not be able to regrow amputated limbs like salamanders can -- but we do have a "salamander-like" ability to regrow damaged cartilage, a new study has found.The study, published Wednesday 210

If were unable to log into Twitter, you were not alone. Twitter users nationwide were reporting the social networking site as down on Thursday. According to Downdetector.com, the outage didn't just affect people in the United States. Users in Europe were are reporting outages. The outage was first reported around 3 p.m. ET. By 3:45 p.m., the service appeared to be operational again.There is no word on what caused the outage. 441

Federal regulators are lifting energy efficiency regulations for several common types of light bulbs, which critics believe is the administration's latest assault on efforts to combat climate change and energy use.But the Trump administration said the overturned rules, crafted in the final days of the Obama administration and were set to take effect in January, 376

For generations, Dave Walton's family has owned a farm in Wilton, Iowa.“We bought this farm in 1901 so I’m fourth generation of this farm," Walton says. “We grow soybeans, corn, alfalfa; pasture beef, cattle, sheep."Walton knows the impact of the trade war firsthand. “Soybeans have been hit hardest, they were one of the first products to get tariffs," he says. The farmer says tariffs have brought a level of uncertainty soybean farmers haven't seen in a long time. “China is our largest export buyer overseas," Walton says. "Our biggest buyer of soybeans essentially has been out of the market for about a year and a half now. That dropped our price almost a bushel.”The price change for many Iowans like Walton has left its mark.“We’ve really tightened the belt, we had to look at every expenditure. We haven’t really purchased any equipment, haven’t replaced any equipment. We’ve done the repair work ourselves," he says. "The family living budget is down to the bone so we’ve really had to tighten the belt to get through this.”He says waiting for a trade deal between the U.S. and China has been an emotional roller coaster. "You know, you hear they get together and get some positive news out of D.C., or whoever they’re negotiating, and you have a little bit of hope, and a week later it blows up with a tweet sometimes or the Chinese say ‘no, we’re not going to honor that deal,’ " he says.It's a waiting game he says can't go on forever. "The clock’s been ticking for a while,” Walton says. “We’ve made adjustments and the market starting to come back. If we can stay at this level, we could probably ride it out for a little while. But I would say another year and a half, two years … if we don’t have a deal, things are going to get pretty grim.” 1774

Four out of five parents would be willing to go on a "digital detox" in order to be more present with their families during the holiday season, 156

来源：资阳报