北京自然大肝模型杭州六倍大下颌磨牙剖,临沂女性内外生殖器解剖模型,福州眼球仪模型,石家庄综合手术急救实训模拟人,成都术前无菌操作训练模型,中医面诊检测分析系统（台车式）多少钱,呼和浩特半身心肺复苏训练模拟人（简易型）

An incident that began as an argument over masks led to an officer-involved shooting near Lansing, Michigan on Tuesday.A 43-year-old man from Grand Ledge was shot and killed by a police officer after a fight at a Quality Dairy store in Dimondale.Authorities say a 77-year-old man from Lansing who was wearing a mask and the 43-year-old man who wasn't wearing a mask got into an altercation.The unmasked man reportedly stabbed the masked man and fled the area. A deputy later spotted the vehicle and pulled him over.Once the man pulled over his car, police say he approached the deputy with two knives and a screwdriver.Authorities say the assailant continued to approach the deputy as she backed up, and she fired her weapon, fatally shooting the assailant.The deputy was not physically harmed and is on administrative leave.The case has been turned over to Michigan State Police.The 77-year-old man who was stabbed is reportedly stable.This story was originally published by WXYZ in Detroit. 1000

As investigators seek to determine the cause of the Miami bridge collapse on Thursday that killed six people, attention has turned to the companies involved in the .2 million construction project.Records show that a construction company -- Munilla Construction Management, or MCM -- has done extensive work for the government and that some of its projects have come under scrutiny from safety officials. 414

An orca whale believed to be grieving her dead calf has carried it with her for five days now.The calf died a half-an-hour after its birth, scientists said. They are monitoring the whale as she has carried the calf on her nose and dives to pick it up when it falls off.Officials said it is a rare occurrence for a whale to keep its dead calf with it. This is the first calf in three years born to endangered orcas.On Saturday evening, the whale and her calf were spotted in Canadian waters. 503

Another classic movie from the 1980s is getting a remake.The Hollywood Reporter reports that Zac Efron would star in the remake of "Three Men and a Baby" for Disney+.The 1987 movie that starred Tom Selleck, Steve Guttenberg, and Ted Danson, is about three bachelors living together in New York when an infant baby girl arrives at their doorstep.Variety reports that a script for the remake has already been written.Efron will return to Disney after starring in Disney's "High School Musical" series in 2006. 515

Are masks complicating facial recognition software? The short answer is no, but masks do complicate matters.Computer science experts say that face coverings and other accessories may act as a speedbump, but it wouldn’t be very difficult for the software to be modified.However, with a face covering, recognition may be less accurate.“It has fewer data points and that is the concern,” Steve Beaty, computer science professor at Metro State University-Denver, said. “Because you are essentially removing your nose and your mouth from the equation if you will, there will be fewer data points and the concern is that other people can authenticate as you.”Before the use of face masks, facial recognition software had an inaccuracy rate of less than 1 percent. Now, the National Institute of Standards and Technology estimates that the inaccuracy rate has increased from 5 to 20 percent. 892