两性人体躯干模型A(欧洲型28部件)哪里有-【嘉大嘉拟】,嘉大智创,开封足解剖模型,成都头颅骨模型附肌肉模型,贵阳细胞有丝分裂模型(8部件),湖北脊柱骨模型,宁夏高级全功能护理训练模拟人(女性),福建高级外科基本技能训练工具箱
两性人体躯干模型A(欧洲型28部件)哪里有上海白内障模型,益阳60CM男性针灸模型(带肌肉解剖),西宁医学彩色人体解剖挂图,乌鲁木齐骨骼与内脏关系模型,黑龙江乳牙立体模型,西藏4倍大窝洞制备单色,绵阳高级全功能护理训练模拟人
As you head to the stores for your back-to-school shopping, you may get suckered into buying items marked down as a sale. But there are a few things you should know before shopping if you want to save money.Jeff Kreisler, editor and chief of People Science, says in order to be a smart shopper, you have to pay attention to the "decoy price."“If something has three different versions," explains Kreisler. "The top version is too expensive, the bottom version is too cheap, and because we don’t really know how to value it, we chose what’s in the middle.”That middle item is not always the best deal. Also, don't get suckered into buying the newest item, which is usually overpriced. 712
As the world sputters amid a global coronavirus pandemic that may have originated from bats in China, researchers released a study on Monday indicating that pigs could transmit a pandemic-level flu strain to humans.The Chinese and British based researchers, who published their findings in the Proceedings of the National Academy of Sciences on Monday, said that G4 EA H1N1 viruses in pigs should be closely monitored in human populations, especially among workers in the swine industry.The researchers said that pigs are intermediate hosts for the strain of influenza, which researchers are concerned could spread to humans. A further concern is that humans could spread the virus to other humans, prompting a pandemic. While the study notes that the virus had spread to workers in the swine industry, it likely has not been transmitted from humans to humans.“G4 viruses have all the essential hallmarks of a candidate pandemic virus,” the team of UK researchers wrote.The researchers said G4 viruses bind to human-type receptors, produce much higher progeny virus in human airway epithelial cells, and show efficient infectivity and aerosol transmission in ferrets.While the study indicates cause for some concern, Martha Nelson, an evolutionary biologist at the U.S. National Institutes of Health’s Fogarty International Center, told Science Magazine the chances of a pandemic from G4 viruses are “low,” but added that no one knew the pandemic risk of H1N1 until 2009.“Influenza can surprise us,” Nelson told Science. “And there’s a risk that we neglect influenza and other threats at this time” of COVID-19.Nelson added to Science that given the warning, it would be ideal to produce a human G4 vaccine as the world still needs to be vigilant on other pandemics besides COVID-19.Domestically, the University of Missouri reviewed the research. 1855
Automakers are racing to develop driverless cars, putting increasingly complex technology on the road despite concerns from safety experts and the National Transportation Safety Board about a lack of regulations.Unlike rules for the design of a seatbelt or airbag, the federal guidelines for automated vehicle systems are voluntary. The U.S. Department of Transportation says keeping rules at a minimum will speed up the introduction of life-saving technology, a goal made all the more urgent as traffic deaths climbed again last year to 37,461, with 94 percent of those caused by human error.That lack of mandatory rules for self-driving cars has given automakers and technology companies the green light to police themselves, said Jackie Gillan, president of Advocates for Highway and Auto Safety. The group is calling for the government to issue mandatory safety standards for driverless cars.“Before we introduce this technology we need to have some assurance and accountability by the industry that this technology is not going to kill or injure consumers,” Gillan said.The National Transportation Safety Board makes recommendations after investigating major transportation incidents. The board recently called on DOT to issue new safety rules after its investigation of a May 2016 fatal crash of a Tesla Model S operating on autopilot near Williston, Fla. The Tesla slammed into a tractor-trailer, its cameras and automatic emergency braking system failing to spot the blank side of the truck against the white sky.It was the first known deadly wreck of a car driving with that level of automated sophistication. The NTSB said the driver relied too heavily on the car’s traffic-aware cruise control system and autosteering feature, but also blamed Tesla’s autopilot for allowing the driver to not interact with the car for prolonged periods of time.Investigators found the driver had his hands on the wheel for only 25 seconds during the 37 minutes the car was on autopilot. After the crash, Tesla updated its software that requires drivers touch the wheel every so often when the car is driving itself to ensure a human is paying attention to the road. Now if a driver repeatedly fails to touch the wheel, he or she will “strike out” and cause the car to slow down and stop in its lane with its hazard lights on, disabling autopilot for the remainder of the trip. 2378
ATLANTA (AP) — Georgia’s governor, who has opposed local mask mandates and even sued over one in Atlanta, has signed a new executive order that allows local governments to enact mask requirements to help fight the coronavirus pandemic.As with previous orders, the one issued by Gov. Brian Kemp on Saturday says residents and visitors of the state are “strongly encouraged” to wear face coverings when they are outside of their homes, except when eating, drinking or exercising outside.But unlike previous orders, this one allows local governments in counties that have reached a “threshold requirement” to require the wearing of masks on government-owned property.A county meets that threshold if it has had 100 or more confirmed cases of COVID-19 per 100,000 people over the past two weeks. Very few of the state’s counties are below that threshold.The order says mask mandates can’t lead to fines, fees or penalties against private businesses or organizations. For individuals, the order says penalties cannot include a fine more than or prison time.The order also extends shelter-in-place requirements for people who are considered to be at a higher risk of severe illness from the coronavirus.It also bans gatherings larger than 50 people if individuals are closer than 6 feet apart. 1299
As states begin to reopen, a new stage in the pandemic means elective surgeries are back on schedule.For 51-year-old mother of two Honaire Murillo, the pandemic delayed a much needed spinal surgery.“The shooting pains all the time and you know I had kids I have to run around. And so, it took about a year and I was so disappointed,” says Murillo.Twenty-four years ago, the aspiring pro-bodybuilder’s dreams were cut short when she was hit by a motorboat while visiting Puerto Rico on business.More than 20 surgeries later, Murillo needed another one.“The pain started coming back and so I knew I was going to have more surgery,” she says.Last week, doctors at Rush University Medical Center’s Midwest Orthopaedics in Chicago were able to get Murillo into surgery for a first-of-its-kind procedure.It was a minimally invasive spine surgery that utilized augmented reality.“The efficiency this provides because of the accuracy and the visualization of the spine is remarkable,” says Dr. Frank Phillips, the director and minimally invasive spinal surgeon at Rush who performed the procedure.A headset guidance system allowed Dr. Phillips to see Murillo’s spinal anatomy – essentially giving him X-ray vision.“That's exactly what it is,” says Dr. Phillips. “It really is X-ray vision. Except it's not just X-ray vision, you're actually seeing the real spine through the skin.”The CT scanned images are directly projected onto the surgeon’s retina and then superimposed right on top of the patient’s surgical area.“I was just blown away,” says Dr. Phillips. “The minute I put my headset on and looked down at the spine it was like that wow moment. I was like ‘this is crazy.’”Researchers say the FDA-cleared x-vision system could revolutionize the way surgeons perform complex procedures.“It's so accurate so precise the visualization so good you can do the surgery more efficiently which obviously translates into less anesthetic time and advantages to the patient,” says Phillips.For Murillo, who eventually went pro 15 years after her accident, this latest groundbreaking surgery has her thinking about another return to competition.“I'm still looking to see if I could comeback one more time. I'm not sure. But, yeah to me it's a dream.”Augmedics, the maker of the technology says it plans to explore the x-ray vision technology beyond just spinal surgery. 2365