广西牙护理保健模型（32颗牙，可脱卸，放大5倍）(合肥男性全身骨骼附主要动脉和神经分布模型) (今日更新中)

New studies confirm that multiple types of steroids improve survival for severely ill COVID-19 patients, cementing the cheap drugs as a standard of care.An analysis of pooled results from seven studies found that steroids reduced the risk of death in the first month by about one-third compared to placebo treatment or usual care alone in these seriously ill patients who needed extra oxygen.The work was led by the World Health Organization and published Wednesday by the Journal of the American Medical Association.Based on the results of the studies, the WHO has made two recommendations. The first, it says a strong corticosteroid therapy for 7 to 10 days should be used in patients with severe or critical COVID-19. The second, this therapy should not be used in patients with non-severe COVID-19, because it may increase the risk of death.“In contrast, in patients with non-severe COVID-19, based on data from 1,535 patients in one study, systemic corticosteroids may increase the risk of 28-day mortality,” researchers wrote.Compared to other treatments for COVID-19, these types of steroids are generally low cost, easy to administer and readily available across the globe.“Dexamethasone and prednisolone are among the most commonly listed medicines in national essential medicines lists; listed by 95% of countries. Dexamethasone was first listed by WHO as an essential medicine in 1977, while prednisolone was listed 2 years later,” the WHO wrote.The WHO added that clinicians should exercise caution in use of corticosteroids in patients with diabetes or those who are immunocompromised and could become severely ill do to COVID-19. 1651

New York is adding new measures to prevent people from dying while taking selfies at a waterfall in the Catskill Mountains.The picturesque Kaaterskill Falls is one of the most visited spots in southeast New York state. However, capturing the perfect photo for social media turned fatal for several people.“I cringe, when someone is where they shouldn’t be,” says Peter Innes with the New York Department of Environmental Conservation. “Because they are just too close to the edge.”Four deaths in the past several years occurred due to the victims being too close to the edge, while taking or posing for photos. Officials say it’s now considered one of the riskiest activities at the park.“A lot of people would think about ice climbing or rock climbing, back country skiing,” says Robert Dawson, a forest ranger. “It’s actually picture taking, because everyone can do it now.”The park sees tens of thousands more visitors annually than they did just a couple decades ago. A lot of that is due to visitors posting photos on their social media platforms, attracting new visitors seeking similar photo ops.“Or they’ll put it on YouTube, and they wanna see how many hits they can get on it,” explains Dawson.“So, then they wanna make those really cool videos. That’s where they’re willing to take that extra risk.“Then people will see that and be like, ‘I wanna go up there.’” Two of the most recent deaths—in 2016—occurred after the state had already made safety changes.Officials added a staircase to prevent slipping, as well as fencing to keep people from the edge. However, people continued to walk around it despite the obvious park signage.   “We realized there was a problem because of the continued fatalities,” says Innes.Innes helped draft new regulations that went into effect this month.“People are now not allowed to get within 6 feet of the cliff’s edges themselves,” says Innes of the new policy. “They also can’t swim within 150 feet of the top of the falls.”Now, rangers like Dawson have the authority to ticket and even forcibly remove anyone putting themselves at risk.“Before I was just like, ‘Hey, I really don’t want you to do this,’ and some groups will listen some are like, ‘Hey, it’s a free country,’” says Dawson.If he could offer just one piece of advice to Instagram-happy trail goers, Dawson says, “You can still get that great picture; you can do it 10 feet away from the edge and you’ll get the same effect.” 2470

New details are emerging about the 41-year-old Parma, Ohio father who turned himself into Parma Police on Saturday night, leading to the discovery of his 18-month-old son's body.Police said the man came into the police station around 9 p.m. and told an officer at the front desk that he wanted to turn himself in for a crime. Officers noticed cuts on both of his arms, which were later found to be self-inflicted. Officers learned the man's son was inside his car, which was parked in the visitor's parking lot of the station.Police searched the car and found the toddler unresponsive and not breathing inside the trunk.The boy was taken to University Hospitals Parma Medical Center where he was pronounced dead.The father was taken to MetroHealth Medical Center for his injuries where he remains under police custody.  When he is released, he will be brought back to the Parma jail. Scripps station WEWS in Cleveland is not releasing the name of the 18-month-old boy or the father because no one has been charged. 1087

NORTHRIDGE (CNS) - Officials at Cal State Northridge confirmed Sunday that the school was targeted in an attempted cyber-attack.School officials said a hacker tried placing ransomware on third-party software used by the university, and ended up grabbing some customer data, ABC7 reported.CSUN officials told the station that the unnamed third-party company paid the hacker to delete the stolen data, but can't confirm the data was released.Students were alerted to track their accounts and credit records. 513

NEW YORK -- Police took a man into custody after a 92-year-old woman was shoved and hit her head in an apparent random attack in Manhattan earlier this month.Rashid Brimmage was arrested Tuesday afternoon. The 31-year-old man faces a charge of assault, according to authorities.The incident happened on June 12 just before 3:30 p.m. along Third Avenue between 15th and 16th streets in Gramercy Park, police said.Surveillance video released by police showed the suspect shove the woman as she walked past him on the street. 530

来源：资阳报