西安民办高中正规有哪些(西安高三民办高中有哪些) (今日更新中)

For the first time, U.S. health regulators have judged a type of smokeless tobacco to be less harmful than cigarettes, a decision that could open the door to other less risky options for smokers.The milestone 221

GAITHERSBURG, Md. -- Under the fluorescent lights, inside a series of labs, researchers believe they may have cracked the code to create a vaccine for the new coronavirus, which has officially named COVID-19.“It’s rapidly evolving,” said Dr. Gregory Glenn, president of research and development at the Maryland-based company Novavax. “As a company, we are very invested in looking at how to protect people against infectious diseases.”Novavax is one of several pharmaceutical companies around the world, racing to develop a vaccine for the strain of the coronavirus, which recently emerged in Wuhan, China.“We have to puzzle-solve with vaccines,” Dr. Glenn said. “We think about: what do we want to have the immune response to target? Because that should block the infection and stop the illness and that’s the goal here.”He showed a three-dimensional computerized depiction of what the virus looks like.“The coronavirus – corona being ‘crown’ – has spikes,” he said. “Those spikes have a very important function. They let the virus bind to the human cell and then those spikes act as a syringe to inject genetic material into the human cell.”A vaccine would potentially stop that process, thereby protecting a person from the coronavirus.“We have the gene, we have the vaccine, we’re going to move it into animal testing shortly,” Dr. Glenn said. “Our goal is in late spring to be testing in humans.”It normally takes about 18 months to get human trials started on a vaccine. This shorter time frame is nothing new for the company; they developed an Ebola vaccine within 90 days ready for testing – but there’s a catch.It can take years for a vaccine to get approved, but under dire circumstances sometimes they can be used through something called “expanded access” or “compassionate use” – meaning, the vaccine can be used in humans, before it’s fully licensed.“That happened with Ebola – they didn’t have a licensed vaccine, but they were able to use it under ‘compassionate use,’ they developed evidence that it was working,” Dr. Glenn said.As for a fully approved coronavirus vaccine, experts say that would take longer.“A vaccine in a year would be record-setting time, but not in time to probably have much impact for this disease outbreak,” said Dr. Eric Toner with the Johns Hopkins Center for Health Security.However, if the coronavirus sticks around or comes back stronger in a second wave of the disease, Dr. Glenn said they want to be ready.“We know time is of the essence here,” he said.So far, approximately 73,000 people have been infected and more than 1,800 people have died from the most recent strain of the coronavirus. 2653

Hair Club for Men founder Sy Sperling has died in Florida. Sperling became famous in the 1980s for his ubiquitous commercials featuring before and after photos of his clients, ending with him proclaiming “I'm not only the Hair Club president but I'm also a client" as he showed a photo of his previously bald self. Sperling began his business in New York City before taking it national. His commercials were even spoofed on the “Tonight” show and on “Saturday Night Live.” He sold the business for million in 2000. Sperling was 78 when he died Wednesday in Boca Raton.Photo from a 1986 Hair Club for Men 620

HONG KONG — China has officially ratified a plan to write a national security law for Hong Kong, exerting Beijing's broader, new control over the semi-autonomous territory in a bid to prevent a return of the months of often-violent protests last year. China’s ceremonial legislature approved a decision by the ruling Communist Party to impose national security laws on Hong Kong. The Beijing-backed Hong Kong government sought to assure its citizens that the law would not infringe on their freedoms. The pro-democracy opposition described the move as the end of the core values that set the former British colony apart from the rest of China. 655

Former US President Jimmy Carter was hospitalized on Monday following a fall at his home in Georgia, according to a statement by the Carter Center. Carter, 94, had surgery to repair a broken hip as a result from the fall. He is said to be recovering, the statement read. Carter was leaving to go turkey hunting on Monday when the fall happened. Despite his advanced age, Carter has maintained an active schedule. He continues to hold Sunday School in Georgia, and visits Habitat for Humanity projects across the country. Carter has had some health issues in recent years. In 2015, he had a "small mass" removed from his liver. During his treatment for the liver, he was diagnosed with melanoma on his brain, and would undergo treatment. Just four months later, Carter declared that he was cancer free.In 2017 while at a Habitat for Humanity project in Canada, Carter was hospitalized for dehydrated while working under the hot sun. Carter was released the next day. Carter is the oldest living former president. 1024

来源：资阳报