中山口干苦是怎么回事(中山大便上带血什么原因) (今日更新中)

In a few weeks, thousands of college students will begin their yearly right of fall by returning to the campus of Tufts University in Medford, Massachusetts, but a return to campus life this year will mean testing and quarantining for those students who chose to come back.Like colleges and universities across the country, Tufts is experimenting with a new plan that will allow more than 5,000 students to come back to campus while at the same time, instituting rigorous new guidelines in an effort to keep COVID-19 from spreading.The key to success, testing.“We wanted to test for COVID at a frequency that would catch people when they’re asymptomatic before they have a chance to spread,” explained Tuft’s President Anthony Monaco.Tufts plan for the fall is as complex as the virus itself. Students from outside the Northeast will be brought back to campus first, where they will be forced to quarantine for 14 days. Health officials expect at least a small portion of those students to test positive for COVID-19 the moment they step back on campus. Because of that, the university has constructed an extra 200 modular units of dorm space. The idea of the modular facilities is to give campus health officials a contained area to monitor students who test positive for the virus, while at the same time, keeping them out of the general population.After students from outside the Northeast are brought back to campus, students from the general area around New England will return.Every single student will be tested twice a week for COVID-19, something experts say will be a key component to safely reopening college campuses this fall. Regardless, school officials expect students to test positive for the virus throughout the fall.Researchers at Yale’s School of Public Health have been advising Tufts and hundreds of other colleges who are planning to resume some form of in-person learning this fall.“If we don’t test frequently, we give silent spreaders an opportunity to grab hold and this virus is hard to play catch-up with,” explained Professor A. David Paltiel, who recently published a study on how quickly the virus can spread through colleges if left unchecked.To study the virus, Paltiel and his colleagues used epidemic modeling to assemble hypothetical situations resembling a college campus. The study found that if you take 5,000 healthy students and add in only 10 students who have COVID-19, hundreds, if not thousands, of kids will be sick by Thanksgiving.“At that point, the only thing that keeps the virus from getting out of control is Thanksgiving break,” he said.That is why testing is key, the study found. When Paltiel took those same 5,000 kids and added in 10 students who have COVID-10, but tested every student twice a week, the study found that only about 100 students ended up catching COVID.“Many universities are planning to only test students who have symptoms, in our view that is a recipe for disaster,” he said.Only adding to the uncertainty of the situation, about 40 percent of college students said they would return to live near campus even if classes were held virtually. Paltiel and other health officials say because of that, it’s more beneficial to have students on-campus where they can be monitored and tested frequently.“It’s hard and it could be a nightmare, people who say we shouldn’t open campuses should remember the nightmare doesn’t go away,” he said. 3420

If someone asks to borrow your cellphone, would you lend it them? If you have a popular payment app on there, you might want to think twice.Popular money transfer apps and services like Venmo, PayPal or Apple Pay are all attached to people’s bank accounts.Brittany Burmeister uses Venmo every day. She wasn’t aware police in cities across the country are warning of a scam circulating, costing some thousands of dollars.It works like this: someone asks to use your smartphone, says their battery died or they left theirs at home, they use your payment app and steal your funds without you even knowing.Joseph Martinez, an information system security professor at Milwaukee Area Technical College, says when you’re not using them, log out of the money apps and while you’re at it, get off of Bluetooth.“They can hack into the phone via the Bluetooth portal and then through that portal have access to any application that you have your password and credentials automatically stored,” said Martinez.He also suggests linking your credit card instead of a debit card, so you have more protection. Burmeister is taking notes, considering her cell, like so many others, is a digital wallet. She says she’s not sure now if she’ll hand off her phone to a stranger. “I’d probably just say 'hey, I bet the restaurant has a phone inside' or if they’re in a public place,” said Martinez. A spokesperson for Milwaukee police hadn’t heard of any reports but urges people to be cautious. Martinez says as another precaution, you should download antivirus and spyware apps and what’s called a VPN app, or "virtual private network." It will shield your financial apps from strangers trying to gain access. 1726

In a new study of mask usage published by the American Institute of Physics, researchers found that if 70% of people wore surgical masks, the pandemic would be "eradicated."According to the article, which was published Tuesday, investigators with the Department of Engineering at the National University of Singapore looked at studies that reviewed N95s, surgical masks, and cloth masks to see how the mask's design, material, and capability of protecting people from the virus, was.Authors Sanjay Kumar and Heow Pueh Lee found that if 70% of people wore surgical masks in public consistently, the pandemic could be eradicated. Even cloth masks, which they found to be 30% effective, could lead to a "significant reduction of COVID-19 burden."The researchers analyzed that if masks are worn, it reduces the size of fluid droplets expelled from the nose and mouth, spreading the virus in the air. The investigators said small droplets traveled a more considerable distance and were in the air longer because they became aerosolized.According to the article, the researchers found that the N95s filtered out aerosol-sized droplets, and masks made with hybrid polymer materials effectively filter particles while simultaneously cooling the face. 1250

If you don't wear a mask in Houston, Mayor Sylvester Turner says the police could start issuing you a citation or fine you 0.Mayor Turner made the announcement on Monday, which could see people being fined 0 if they don't wear a face-covering apparatus during the coronavirus pandemic."Today, I am announcing that we will begin issuing citations to people who are not wearing masks under the state's mandatory mask order," Mayor Turner said in his tweet. "Houston Police will issue warnings and citations to anyone not wearing a mask in public if they don't meet the criteria for an exemption.""The citation comes with a 0 fine," Mayor Turner continued. "Lives are at stake, so I am taking this step to save lives and slow the virus from spreading in the month of August."Houston police will not respond to 9-1-1 calls about people who aren't wearing masks, Fox5 reported.In early July, Texas Gov. Greg Abbott issued a statewide mandate that masks must be worn in public in any county with 20 or more coronavirus cases, Forbes reported. 1053

Hurricane Teddy strengthened into a major hurricane Thursday morning, according to the National Hurricane Center (NHC). However, the agency is currently predicting that the storm will not have a major impact on the U.S.According to an 11 a.m. ET update, Teddy strengthed into a Category 3 storm on Thursday with maximum sustained winds of 120 mph. The storm is currently churning in the central Atlantic and is expected to dissipate before reaching the Caribbean or the United States.However, the storm may have an impact on the island of Bermuda. The storm may approach the island with hurricane-force by late Sunday evening or early Monday morning, and bring storm surge and rain along with it.Earlier this week, Hurricane Paulette passed directly over Bermuda. According to the Weather.com, the entire island was engulfed by the hurricane eye of Paulette as it passed over the territory. Luckily, there was no serious damage or injuries reported in the country.Teddy is just the latest major hurricane produced by an extremely active 2020 hurricane season. Tropical Storm Vicky also formed on Thursday, making it the 20th named storm of the year. The NHS is also currently monitoring three other storms for possible cyclone formation.According to the National Oceanic and Atmospheric Administration, the record for named storms in a year was set in 2005 with 27. 1373

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