辽宁电动脑脊液循环模型(石家庄穿戴式环甲膜穿刺/切开组件) (今日更新中)

The White House is again rejecting calls for a national mask-wearing mandate.White House chief of staff Mark Meadows says in an appearance on “Fox and Friends” Monday morning that the president sees the issue as a “state-to-state” matter.He says that, “certainly a national mandate is not in order” and that “we’re allowing our local governors and our local mayors to weigh in on that.”New Jersey’s Democratic Gov. Phil Murphy has said he’d like to see a national strategy on the coronavirus, including a mask requirement. He says his state is seeing “small spikes in reinfection” from residents coming back from Florida, South Carolina and other virus hotspots, and the U.S. is “as strong as our weakest link right now.”Vice President Mike Pence has also rejected the idea of a national mandate, saying that’s up to governors and local health officials. 862

The stock market is on the comeback trail.After another wobbly session, the Dow soared 287 points, or 1.2%, on Friday. It was the index's best day since August.The Dow had soared 400 points at the open before giving up most of those gains and then resuming its rally. The Dow lost 1,378 points over Wednesday and Thursday.The broader S&P 500 jumped 1.4% on Friday. The Nasdaq, which has taken the brunt of the recent stock market turbulence, spiked 2.3%.Despite Friday's rebound, all three major indexes suffered their worst weeks since March. And the S&P 500 is down three straight weeks. That hasn't happened since the Brexit referendum of June 2016.Investing experts weren't exactly sure what turned stocks negative by midday. The driving forces behind this week's downturn -- trade war and interest rate fears -- were around before this week, and yet market volatility is spiking."The sellers have control right now," said Justin Walters, co-founder of Bespoke Investment Group. "The scariest sell-offs are the ones you can't tie to a specific reason."Stocks had turned sharply south over the past week because investors are concerned about rising interest rates. As the Federal Reserve raises rates to keep the economy from overheating, investors have been getting out of bonds, driving down their price and driving up their yields. Suddenly, the return on bonds has become competitive with some stocks — particularly risky tech stocks.Rising interest rates also increase borrowing costs for households and businesses, eating into corporate profits."What we are seeing now is changing sands. The ground isn't stable and people are figuring out where to go next," said JJ Kinahan, chief market strategist with TD Ameritrade.Tech stocks have come under fire because they are some of the riskiest and most expensive parts of the market. Investors fear that tech companies may not hold up well in a downturn, particularly as interest rates spike. A proxy for the tech sector had its sharpest plunge in seven years on Wednesday.But Big Tech on Friday regained some of its losses. Facebook (FB), Apple (AAPL), Amazon (AMZN), Netflix (NFLX) and Google (GOOGL) were all up.Asian and European markets also came back Friday. The Hang Seng soared 2.2%. Stocks in Shanghai rose 0.9% and the Nikkei rose 0.5%. Stocks in London, Germany and France all rose about a half percentage point.Markets had bounced back Friday morning following news that President Donald Trump plans to meet next month with Chinese leader Xi Jinping at the G-20 summit. That eased some of the investors' fears about another trade war escalation. China also reported its exports rose nearly 15% in September, stronger than expected. That suggests China is weathering the first waves of new tariffs that the Trump administration imposed on billion of Chinese exports this summer.But Kinahan is still worried about US-China trade talks. He thinks that a deal is key in order for the markets to get back on track, adding that a full-blown trade war could undo much of the positives from the Trump administration's pro-business policies."The concern is that if nobody blinks, it could negate all the tax cuts we had," he said.Earnings season also kicked off Friday morning, with JPMorgan (JPM) and Citigroup (C) reporting their quarterly finances before the bell. Wall Street analysts expected the financial sector to post another incredibly profitable quarter — and JPMorgan managed to?beat their already lofty expectations.In times of market turbulence, there's nothing like soaring profits to calm investors' nerves.Rebounds after disastrous market selloffs are common. Investors who think the market may be oversold look to buy stocks they think are suddenly cheap.But markets are fickle. 3804

The recommended amount of sleep for adults is six to eight hours a night. Sleeping more than those hours is associated with an increased risk of death and cardiovascular diseases, says a global study published Wednesday in the European Heart Journal.Looking at data from 21 countries, across seven regions, the research team found that people sleeping more than the recommended upper limit of eight hours increased their risk of risk of major cardiovascular events, like stroke or heart failure, as well as death by up to 41%.But a possible reason for this could be that people have underlying conditions causing them to sleep longer, which in turn could raise the risk of cardiovascular disease or mortality, explain the authors of the study.The team, led by Chuangshi Wang, a Ph.D. student at McMaster and Peking Union Medical College in China, also identified a rising risk among daytime nappers."Daytime napping was associated with increased risks of major cardiovascular events and deaths in those with [more than] six hours of nighttime sleep but not in those sleeping [less than] 6 hours a night," Wang said.In those who underslept, "a daytime nap seemed to compensate for the lack of sleep at night and to mitigate the risks," Wang explained.Previous studies into this topic were mainly carried out in North America, Europe and Japan. The new study brings a global picture.But the findings are observational, meaning the cause of this association remains unknown."Even though the findings were very interesting they don't prove cause and effect," said Julie Ward, a senior cardiac nurse at the British Heart Foundation, who was not involved in the study.Having less sleep -- under six hours -- was also shown to increase these risks by 9%, compared with people who slept for the recommended six to eight hours, but this finding was not considered to be statistically significant by the team.In 2014, 35.2% of American adults reported not getting enough sleep with less than seven hours per night, according to the CDC. 2049

The wild is calling, and we're answering. Reserve yours 7.13.20. #FordBronco pic.twitter.com/2LEDH5FNtr— Ford Motor Company (@Ford) June 29, 2020 153

The Trump administration has formally asked the Federal Communications Commission (FCC) to develop regulations that could apply to Facebook, Twitter and other such platforms.It's a key step toward President Donald Trump fulfilling his executive order to regulate social media.The order asks the FCC to clarify a section of law that has shielded tech companies from much litigation over internet content since 1996.The FCC — which is reviewing the Administration's petition — now has to decide whether to agree with the president's call for oversight or not.Legal experts say the agency has traditionally avoided regulating internet companies in the past. 662

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