中山肛裂技术(中山大便擦时纸上有血是怎么回事) (今日更新中)

we’re thinking about you. we believe restaurants will have an increasingly essential role in feeding our country. so whether you’re ordering at BK or elsewhere, use minimum contact methods like drive-thrus, pick-up or delivery. take care, https://t.co/tWSdfUbbGucc: @whitehouse— Burger King (@BurgerKing) March 17, 2020 332

Wearing a face covering in public is recommended by the Centers for Disease Control and Prevention (CDC) to help prevent the spread of COVID-19. Still, not everyone is wearing one. A new study offers some insight into why."In particular, just by looking around, it was quite obvious that maybe there were some gender differences," said Valerio Cabraro, a researcher with Middlesex University in London. Cabraro teamed up with the Mathematical Science Research Institute in Berkeley, California to survey roughly 2,500 people, half men and half women, about wearing a face covering out in public."We did find men are less likely than women to state that they wear a face covering anytime they leave the home, when engaged in essential activities and when around people outside the house," said Cabraro.When asked their reasons for not wearing a mask, a few answers stood out.The survey showed clear gender differences in the answers, with more men stating that wearing a face covering was shameful or a sign of weakness. "Wearing a face covering is a sign of weakness, wearing a face covering is shameful and the stigma associated with wearing a face covering is preventing me from wearing one," said Cabraro.The survey also found men are more likely than women to think they will not be affected by the coronavirus. Whether wearing a mask or not, psychologists say seeing other people out in public who are not wearing a mask can affect how safe you feel."I think there’s kind of a fear of individuals feeling vulnerable having a perception of being in fear by wearing a mask, that wearing a mask does for some people resemble I’m afraid, I’m vulnerable," said Dr. Apryl Alexander, a psychologist and associate professor at the University of Denver. Alexander says most people have spent the last 60 days at home, missing important events or milestones in their lives, and are eager to get back to normal. This desire to move on from this sense of loss can affect whether people feel inclined to wear a face covering while out in public. "If I see people not wearing masks, for me that communicates, ‘Do you care about my safety and my wellbeing and the safety of people here?’” said Alexander. “And then I think for some people they might think, ‘Well is it safe? Is this all blown out of proportion? Is the danger not really there, that this person feels comfortable not wearing a mask?’"Alexander says she hopes both men and women adhere to the CDC guidelines about wearing masks out in public and that the exhaustion they feel from having to quarantine doesn't give them a false sense of safety during this time. 2628

Two centuries after its invention, the stethoscope — the very symbol of the medical profession — is facing an uncertain prognosis.It is threatened by hand-held devices that are also pressed against the chest but rely on ultrasound technology, artificial intelligence and smartphone apps instead of doctors’ ears to help detect leaks, murmurs, abnormal rhythms and other problems in the heart, lungs and elsewhere. Some of these instruments can yield images of the beating heart or create electrocardiogram graphs.Dr. Eric Topol, a world-renowned cardiologist, considers the stethoscope obsolete, nothing more than a pair of “rubber tubes.”It “was OK for 200 years,” Topol said. But “we need to go beyond that. We can do better.”In a longstanding tradition, nearly every U.S. medical school presents incoming students with a white coat and stethoscope to launch their careers. It’s more than symbolic — stethoscope skills are still taught, and proficiency is required for doctors to get their licenses.Over the last decade, though, the tech industry has downsized ultrasound scanners into devices resembling TV remotes. It has also created digital stethoscopes that can be paired with smartphones to create moving pictures and readouts.Proponents say these devices are nearly as easy to use as stethoscopes and allow doctors to watch the body in motion and actually see things such as leaky valves. “There’s no reason you would listen to sounds when you can see everything,” Topol said.At many medical schools, it’s the newer devices that really get students’ hearts pumping.“Wow!” ″Whoa!” ″This is awesome,” Indiana University medical students exclaimed in a recent class as they learned how to use a hand-held ultrasound device on a classmate, watching images of his lub-dubbing heart on a tablet screen.The Butterfly iQ device, made by based by Guilford, Connecticut-based Butterfly Network Inc., went on the market last year. An update will include artificial intelligence to help users position the probe and interpret the images.Students at the Indianapolis-based medical school, one of the nation’s largest, learn stethoscope skills but also get training in hand-held ultrasound in a program launched there last year by Dr. Paul Wallach, an executive associate dean. He created a similar program five years ago at the Medical College of Georgia and predicts that within the next decade, hand-held ultrasound devices will become part of the routine physical exam, just like the reflex hammer.The devices advance “our ability to take peek under the skin into the body,” he said. But Wallach added that, unlike some of his colleagues, he isn’t ready to declare the stethoscope dead. He envisions the next generation of physicians wearing “a stethoscope around the neck and an ultrasound in the pocket.”Modern-day stethoscopes bear little resemblance to the first stethoscope, invented in the early 1800s by Frenchman Rene Laennec, but they work essentially the same way.Laennec’s creation was a hollow tube of wood, almost a foot long, that made it easier to hear heart and lung sounds than pressing an ear against the chest. Rubber tubes, earpieces and the often cold metal attachment that is placed against the chest came later, helping to amplify the sounds.When the stethoscope is pressed against the body, sound waves make the diaphragm — the flat metal disc part of the device — and the bell-shaped underside vibrate. That channels the sound waves up through the tubes to the ears. Conventional stethoscopes typically cost under 0, compared with at least a few thousand dollars for some of the high-tech devices.But picking up and interpreting body sounds is subjective and requires a sensitive ear — and a trained one.With medical advances and competing devices over the past few decades, “the old stethoscope is kind of falling on hard times in terms of rigorous training,” said Dr. James Thomas, a cardiologist at Northwestern Medicine in Chicago. “Some recent studies have shown that graduates in internal medicine and emergency medicine may miss as many of half of murmurs using a stethoscope.”Northwestern is involved in testing new technology created by Eko, a Berkeley, California-based maker of smart stethoscopes. To improve detection of heart murmurs, Eko is developing artificial intelligence algorithms for its devices, using recordings of thousands of heartbeats. The devices produce a screen message telling the doctor whether the heart sounds are normal or if murmurs are present.Dennis Callinan, a retired Chicago city employee with heart disease, is among the study participants. At age 70, he has had plenty of stethoscope exams but said he feels no nostalgia for the devices.“If they can get a better reading using the new technology, great,” Callinan said.Chicago pediatrician Dr. Dave Drelicharz has been in practice for just over a decade and knows the allure of newer devices. But until the price comes down, the old stalwart “is still your best tool,” Drelicharz said. Once you learn to use the stethoscope, he said, it “becomes second nature.”“During my work hours in my office, if I don’t have it around my shoulders,” he said, “it’s as though I was feeling almost naked.” 5223

WASHINGTON, D.C. -- Super Tuesday’s presidential primaries across 14 states mark the first major security test since the 2018 midterms. State and local election officials say they are prepared to deal with everything from equipment problems to false information about the coronavirus. States have been racing to shore up cybersecurity defenses, replace aging and vulnerable voting equipment and train for worst-case scenarios since it became clear that Russia launched a sweeping and systematic effort to interfere in the 2016 presidential election. U.S. intelligence chiefs have warned foreign interference remains a threat for the 2020 election. And the recent outbreak of a new virus could present a bad actor with an opening to spread false information to keep voters away from the polls. 805

WASHINGTON, D.C. – Twitter has flagged a second Republican politician's tweet for glorifying violence.The company applied the label Monday to a tweet by Representative Matt Gaetz of Florida. The lawmaker called for the United States to "hunt down" members of Antifa "like we do those in the Middle East." Antifa, short for anti-fascists, is actually not a concrete group and it has no leaders. It’s said to be a political protest movement comprising of autonomous groups affiliated by their militant opposition to fascism and other forms of extreme right-wing ideology.On Sunday, President Donald 609

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