海口血管介入手术模拟教学训练系统(海口战创伤伤情套装) (今日更新中)

The U.S. Postal Service handles around 500 million pieces of mail every day. UPS and FedEx deliver 34 million packages combined.With the number of items being shipped and moved around the country, it’s impossible to closely inspect every single item. So, how do they keep us safe with so many packages? The U.S. Postal Service says they have a specific program called the Dangerous Mail Investigations Program to help get involved when suspicious packages come through a facility.They use X-ray technology and trained employees to recognize suspicious packages, but the daily volume of mail makes it a constant battle.One of the problems with the recent slew of packages delivered is that the packages were missing postmarks. The question is: how did they get missed and still delivered? As the FBI and USPS continue to find out information about what happened, the new attention given to the U.S. Postal Service is under new scrutiny.  959

The Trump administration supports reopening schools this fall, in addition to sending 125 million reusable masks to school districts they released new guidance this week for districts to reopen safely.The Schools Should Reopen Safely policy is based on three assumed facts by the administration: that prolonged school closures cause harm, children are at low risk for serious illness from Covid-19, and that educating children is a top national priority.President Trump attended a discussion Wednesday about getting children back to school where the policy was discussed with administration leaders, medical experts and educators. Some of the speakers referenced how the coronavirus pandemic has provided an experiment for virtual learning.“But the virtual learning is not like being in a classroom, and we’ve learned that, I think, very strongly — in almost all cases. People thought for a long time that would be the answer but it’s — that’s not the answer. The answer is an old-fashioned one,” President Trump said.The recommendations encourage the use of masks and social distancing, as well as educating students, teachers and staff about Covid-19 symptoms. They follow guidance released earlier this year from the Centers for Disease Control and Prevention.The document lists eight recommendations for schools:Ensure all students, teachers, and staff understand the symptoms of COVID-19 and its risk factors.Require all students, teachers, and staff to self-assess their health every morning before coming to school; if they are symptomatic they should consult their physician.Encourage frequent handwashing or hand sanitizing during the school day, beginning upon entrance to the school, by ensuring that handwashing facilities are widely available throughout the school.Minimize large indoor group gatherings; hold large gatherings outdoors whenever possible.Maintain high standards of hygiene and ventilation within all classrooms, including keeping windows and doors open and running fans and AC units whenever possible.Require students, teachers, and staff to socially distance around high-risk individuals.Encourage the use of masks when social distancing is not possible.Liberally post instructions regarding hygiene and social distancing around the school.There are also recommendations for high-risk teachers and students, including giving these individuals options to stay home.“Provide high-risk students, or students who have high-risk family members, the choice to stay home and engage in distance learning,” the guidance states.The policy is a set of recommendations and not mandatory for schools to reopen. States and districts are able to make their own decisions. 2694

The victims' families and survivors of the Florida high school shooting have not held back, calling out the National Rifle Association in the days since the massacre.On Wednesday, Dana Loesch, the organization's national spokeswoman faced them for the first time.Loesch said the organization feels the process for buying firearms is flawed and ensured the audience that the NRA is fighting for them. But the crowd booed as she left the event.  456

The US Food and Drug Administration expanded the list of drugs being recalled that contain valsartan. The drug is used as a component in a set of drugs used to treat heart failure and blood pressure.The FDA initially announced a valsartan recall in July after lab tests discovered that some drugs could have been tainted with a substance linked to higher risk of cancer. The drug had previously been recalled in 22 other countries. The expanded recall includes some drugs that contain valsartan and hydrochlorothisazide. Not all of the drugs containing valsartan were impacted.N-nitrosodimethylamine or NDMA, the impurity the lab tests found, is considered a possible carcinogen by the US Environmental Protection Agency. It is an organic chemical that has been used to make liquid rocket fuel, and can be unintentionally introduced through certain chemical reactions. It's a byproduct from the manufacturing of some pesticides and fish processing. 956

The world's biggest COVID-19 vaccine test got underway Monday with the first of 30,000 planned volunteers. The experimental vaccine is made by the National Institutes of Health and Moderna Inc. It's one of several candidates in the final stretch of the global vaccine race. Officials are seeking to find out whether more people who get dummy shots become infected than those given two doses of the real vaccine. The U.S. government plans separate huge studies of several leading vaccine candidates through fall, each in hot spots where the virus still is spreading.Dr. Anthony Fauci and other Trump administration officials have said that the company is already producing millions of doses of the vaccine in the event that it receives Emergency Use Authorization from the FDA following the trial. Fauci remains cautiously optimistic that a vaccine could be available by January of next year — though it's unclear how long it would take for a vaccine to be available for all Americans who want it. 1004

来源：资阳报