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发布时间: 2025-06-04 00:46:58北京青年报社官方账号
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White House press secretary Kayleigh McEnany tweeted Monday that she had tested positive for COVID-19.McEnany tweeted that she was not experiencing any symptoms and that she had not had close contact with anyone in the media.She added that she would "begin the quarantine process" and continue working remotely. 319

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What makes a successful relationship? As some couples have found out during the pandemic, and researchers have scientifically discovered, it may boil down to how you engage with each other and how committed each partner is.A study published this week in the Proceedings of the National Academy of Sciences looked at responses from more than 11,000 romantic couples, tracked over about a year.“People’s own judgments about the relationship itself—such as how satisfied and committed they perceived their partners to be, and how appreciative they felt toward their partners—explained approximately 45% of their current satisfaction,” the study’s authors note. “The partner’s judgments did not add information, nor did either person’s personalities or traits.”Top relationship-specific predictors of relationship quality:Perceived partner commitmentAppreciationSexual satisfactionPerceived partner satisfactionConflictA person's own perception of their relationship accounted for about 45 percent of their current satisfaction with their relationship at the onset of a study, and about 18 percent by the end of the study.The study’s authors note the results are based on self-reporting and more study is needed over a longer period of time to see if these characteristics hold true over the long run.If you haven’t lately, it might be a good time to let your partner know that you appreciate them. 1402

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Will be going to Georgia for a big Trump Rally in support of our two great Republican Senators, David and Kelly. They are fantastic people who love their Country and love their State. We must work hard and be sure they win. #USA— Donald J. Trump (@realDonaldTrump) December 2, 2020 289

  

While not as many Americans are expected to travel for Thanksgiving as usual, 56% of Americans are intending on traveling according to data from Tripadvisor. Tripadvisor says that this year's figures are down from an estimated 70% of Americans travelling in 2019.Tripadvisor surveyed Americans from October 16 to 20, so it is possible increased travel restrictions associated with a rise in cases could scare off some from traveling by Thanksgiving. Many states are telling travelers to quarantine for two weeks before coming into contact with others. The vast majority of those traveling, 76%, say they will drive to their Thanksgiving destination, compared to just 11% who say they will fly.The survey found that 22% are staying in a hotel or vacation rental to practice social distancing from friends and family."Despite COVID-19 concerns, the majority of Americans are still traveling this Thanksgiving. The way in which consumers travel, however, will look very different from past years," said Christopher Hsi, Consumer Market Research Lead Analyst for Tripadvisor. "This year, we can expect shorter trips with smaller groups of people for more intimate, close knit gatherings. Many are taking day trips (24%) or spending one night at their destination. Americans are also continuing to avoid big cities, instead opting for warm weather and beach destinations in southern states. We do see, however, that Boomers are less likely to travel this year compared to last (29% vs. 51%)."Whether Americans can safely travel for the holidays remains up for debate, as many public health experts warn that informal gatherings have contributed to the spread of the virus, which has been killing roughly 1,000 Americans per day in recent days.“Unfortunately, the COVID-19 epidemic is worsening, and small household gatherings are an important contributor to the rise in COVID-19 cases,” the CDC said.The CDC issued guidance for holiday gatherings. Part of the recommendations say masks should be worn at holiday gatherings involving people who are not from the same household, and that guests stay 6 feet apart. The CDC also advises against handshakes and hugs.One public health expert says following these guidelines is dependent on your risk tolerance.“I am very risk tolerant,” Dr. Amesh A. Adalja, a senior scholar at the Johns Hopkins Center for Health Security, said in August. “I am an infectious disease physician. I have taken care of people with the coronavirus. Both of my parents are physicians. I don’t take any special precautious with my parents. I don’t think they take any special precautious with me.“I think physicians might be risk tolerant, but I have not changed my behaviors with people I see regularly, other than if they’re telling me they have a fever, and then I might say ‘stay away’ because I don’t want to be quarantined and not be able to work.”Adalja agrees, however, that there is a risk in attending family gatherings, and while face coverings are effective, they're not a panacea.If you ask Dr. Christopher Murray, the director of the Institute for Health Metrics and Evaluation at the University of Washington, he is opting not to see extended relatives amid the pandemic.“Personally, in our family, we will not have our family get together,” Murrays said about Thanksgiving. “I am particularly cautious. That would be our strategy. Certainly, we have avoided, on a personal level, we have avoided any indoor exposure to friends or family and have restricted any exposure at all to outdoor interaction where we can maintain 6 feet or more.” 3579

  

While many think of NASA as the government agency that sends scientists into space, some of NASA’s most important work frequently is used to help people on Earth.In recent months, NASA has used its extensive network of scientists and researchers to combat the coronavirus. And in short order, the agency provided patients and healthcare providers with tools that may have been used to save lives.This week, NASA outlined a number of innovations the agency developed to support the fight against the virus.NASA created an open source for N95 respirators so people can make their own masks by using 3D printers. N95 respirators are unique as they protect the wearer from the virus. NASA’s designs were engineered to meet or exceed standard N95 performance, can be used for different purposes, are compatible with commercially-available filters, and do not disrupt the supply chain.If you have access to a 3D printer, here is how to create an N95 respirator designed by NASA.In addition to NASA’s open-source N95 respirators, the team from Johnson Space Center developed and tested a sterilization protocol to combat a national shortage of N95 masks. This allows N95 respirators to be reused by healthcare providers.“I had a very deep and personal connection to the evaluation (of N95 masks), because my wife is a medical professional… on the frontlines, with only one mask allocated for her to use and re-use daily,” said NASA engineer and project lead Jeremy Jacobs. “She has been very concerned about cross contamination between patient-to-patient and to our family.”Among other innovations, NASA’s Jet Propulsion Laboratory in California designed a new high-pressure ventilator tailored specifically to treat COVID-19 patients. It was designed to treat patients who might not require a full-featured ventilator, keeping the nation’s limited supply of traditional ventilators available, NASA said.NASA’s Armstrong Flight Research Center in California joined several other agencies to create a helmet that functions like a continuous positive airway pressure, commonly known as CPAP, machine to force oxygen into a patient’s low-functioning lungs. 2156

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