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汕头白癜风汕头来中科好
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发布时间: 2025-05-30 04:26:23北京青年报社官方账号
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  汕头白癜风汕头来中科好   

A tetraplegic man has been able to move all four of his paralyzed limbs by using a brain-controlled robotic suit, researchers have said.The 28-year-old man from Lyon, France, known as Thibault, was paralyzed from the shoulders down after falling 40 feet from a balcony, severing his spinal cord, the AFP news agency reported.He had some movement in his biceps and left wrist, and was able to operate a wheelchair using a joystick with his left arm.Researchers from the University of Grenoble in France, biomedical research center Clinatec and the CEA research center implanted recording devices on either side of Thibault's head, between the brain and skin, to span the sensorimotor cortex -- the area of the brain that controls motor function and sensation.Electrode grids collected the man's brain signals and transmitted them to a decoding algorithm, which translated the signals into movements and commanded a robotic exoskeleton to complete them.Over a period of two years, Thibault trained the algorithm to understand his thoughts by controlling an avatar -- a virtual character -- within a video game, making it walk and touch 2D and 3D objects.He trained on simple virtual simulations before using the exoskeleton -- which is assisted by a ceiling-mounted harness -- to eventually walk, and reach for targets with his arms.Over the course of the study, Thibault covered a total of 145 meters (around 476 feet) with 480 steps using the avatar, video and exoskeleton combined, researchers said in the study, which was published in 1549

  汕头白癜风汕头来中科好   

A woman in a car was ramming a man on a motorcycle, chasing him down the streets of Chula Vista, California. A police drone flew after them, broadcasting a live video feed to officers' smartphones.All officers in the department had been out on other high-priority calls when they received the report of two people fighting -- so they deployed their newest emergency response tool. Thanks to the footage from the drone, when officers arrived on scene, they knew exactly where to find the woman and man, and what had happened moments beforehand.They arrested the woman for assault with a deadly weapon, but also found the man happened to be riding a stolen motorcycle. The theft was unrelated to the incident.This is how the Chula Vista Police Department has started using drones to respond to calls, as part of a Federal Aviation Administration program. While police departments have already used drones as part of investigations after a crime has occurred, this program sends a drone out ahead of officers while the crime may still be in progress; officers use that footage to decide how to approach the situation."It gives someone like myself, the Watch Commander, a front row seat to what's going on," said Lt. Christopher Kelly.In the six months the program has been active, drones have helped Chula Vista police make more than 56 arrests. For comparison, Chula Vista police made 6,027 arrests over the course of last year.Police say arrests are up since the drone program began in October compared to the same time period last year, but that it's too early to attribute the change to the drone program.Chula Vista Police Chief Roxana Kennedy said the drones had mostly been operating within a limited range of a mile radius around the station, while the whole city is 52 square miles. "That being said, the drone has effectively contributed to several arrests where it arrived on scene first and vectored officers to the suspect," she said.How the system worksDirected by an officer sitting in the basement of Chula Vista police headquarters, a drone launches from the rooftop.On the roof, another officer sets the geo-fence, a virtual geographic boundary set by GPS, to tell the drone where to go.The pilot on the roof can override the officer directing the drone from the basement if he sees an obstruction, like a flock of birds or manned aircraft, in the way.Federal law typically allows drones to only be flown within the operator's line of sight. The FAA's Integration Pilot Program is letting cities across the United States test flying drones longer and farther, for package delivery, agriculture operations, medical equipment delivery and public safety, among other uses. Along with the city of San Diego, the city of Chula Vista is focusing on the area of public safety operations.Using an off-the-shelf drone and software from a company called Cape, officers can direct the drone via computer from anywhere.Kennedy, the police chief, said the drone is not a replacement for police officers, but it is a tool to help improve the safety of both officers and citizens they're sworn to protect. "It's a game-changer for law enforcement," she said.While a 911 caller may be distraught and may give incomplete or inaccurate information, a drone can get there faster than a police car and zoom in for a closer look.Kennedy said that the zoom feature on the drone's camera allows officers to see a license plate from two miles away, and that kind of tool helps them make better informed decisions and plot a smarter strategy.She said she hopes it could help avoid deadly force incidents — giving officers a chance to assess a situation and to think about how to defuse it before rushing onto the scene."I think that this is so vital for us in law enforcement right now as we're under tremendous scrutiny," she said. The drones could give the officers "real-time information to determine whether somebody actually does have a weapon in their hand, is it not a weapon, is it a pencil, is it something different?"Privacy concerns"Just this morning we saw one come. Someone called about somebody in their yard, and the first thing we saw was the drone," said David Ward, who lives in the city.Some Chula Vista residents have questions about the drones overhead."It might help solve crimes. But I think drones are a little bit of a violation of privacy. Can they look in your window?" said Marie Paniagua.The police chief said the department has done a lot of work to get the community's buy-in."We have worked really hard to make sure that we have policies in place that we address those issues," Kennedy said. "We don't do random patrol with our drones. They're not utilized that way at all. They are not for surveillance. The only time a drone would be used for instance, a search warrant if it was approved through the judge and there was an actual search warrant."Ward said he wants to know whether citizens have a right to see the footage collected, "but I believe that they're doing it to protect people's safety," he said.Future of drone regulationKennedy said Chula Vista has the lowest staffed police department in San Diego County, with 242 sworn officers covering the 52-square-mile area.The eventual goal, she said, is to be able to at least get one drone over a scene within two minutes of a radio call, and to have the drones placed at police stations and fire stations around the city.Capt. Vern Sallee describes the project in three phases: crawl, walk, run."We're getting feedback from them (the FAA) as to what they need to have confidence in our systems, in our drones, to start changing the rules to better integrate drones into the national air space they control," Sallee said.And last month, Chula Vista police drones got clearance to fly farther.On March 15, the FAA granted Chula Vista PD the first-ever certificate of authorization with a "beyond visual line of sight" provision for an Integration Pilot Program participant that allows for proactive emergency response.That gives them a 40-mile flying radius, according to Cape -- and police say those longer drone flights have already started. 6135

  汕头白癜风汕头来中科好   

Actor-comedian John Witherspoon, who memorably played Ice Cube’s father in the “Friday” films, has died. He was 77.Witherspoon’s manager Alex Goodman confirmed late Tuesday that Witherspoon died in Los Angeles. No cause of death was released.The actor had a prolific career, co-starring in three “Friday” films, appearing on “The Wayans Bros.” television series and voicing the grandfather in “The Boondocks” animated series. His film roles included “Vampire in Brooklyn” and “Boomerang,” and he was a frequent guest on “Late Show with David Letterman.”For many his most recognizable role was “Pops,” Ice Cube’s father in the stoner comedy “Friday” and its two sequels, a crude but affectionate father trying to guide his son to be better.“Life won’t be as funny without him,” Ice Cube said in a Twitter post late Tuesday, adding that he was devastated by news of Witherspoon’s death.Regina King, who appeared as Witherspoon’s daughter in “Friday” and also voiced both of his grandsons in the animated series “The Boondocks” called him her “comedic inspiration” on Twitter.Goodman referred to a family statement issued to the website Deadline that said the family was in shock over Witherspoon’s death.The statement says Witherspoon, who was born on Jan. 27, 1942, is survived by his wife, Angela, and sons JD and Alexander.JD Witherspoon tweeted that he was happy for all the great times he and his dad had together.“We’d roast each other like homies more than Father & Son, and I really liked that. He was my best friend & my idol,” JD Witherspoon posted. “Love U Dad...I’ll miss u.” 1605

  

A New Jersey woman faces four years in state prison for her role in scamming more than 0,000 from GoFundMe donors, claiming to be collecting money for a homeless man in Philadelphia.Katelyn McClure, 29, pleaded guilty to one count of theft by deception in the second degree Monday in Burlington County, New Jersey.In the viral story from 2017 that made national headlines, New Jersey resident McClure ran out of gas and was stranded on Interstate 95 in Philadelphia. The homeless man, Johnny Bobbitt Jr., supposedly saw her and gave her his last for gas.McClure and her then-boyfriend, Mark D'Amico, posted about the "good deed" on social media, including a picture of her with Bobbitt on a highway ramp. They also started a GoFundMe campaign to raise money for the homeless man, saying they wanted to pay it forward to the good Samaritan and get him off the streets.Bobbitt pleaded guilty at the local level to one count of conspiracy to commit theft by deception last Friday. He faces a five-year special probation period that requires him to enter the state Superior Court drug court program, in which he'll be expected to get a job and adhere to a structured regimen of treatment and recovery services. Any infractions could bring him a five-year prison sentence, according to Joel Bewley, a spokesman for the Burlington County Prosecutor's Office.CNN reached out to Bobbitt's attorney for comment, but has not heard back.Both Bobbitt and McClure agreed to testify against D'Amico, who has yet to enter a plea in Burlington County court on charges of theft by deception and conspiracy to commit theft by deception in the second degree. His case is scheduled to be presented next month to a Burlington County grand jury for a possible indictment.Both McClure and Bobbitt also pleaded guilty to federal charges in early March.D'Amico is not currently facing federal charges. McClure's lawyer said she had tried to stop the GoFundMe page and D'Amico wouldn't let her."We've indicated throughout it's my view that Mr. D'Amico is the real agent provocateur in this matter.Kate's role from the beginning was to help Mr. Bobbitt," said McClure's attorney, Jim Gerrow."Kate has been strong. She's devastated by this and has been, but we look to the sentencings in federal and state courts and hopefully we can find sufficient evidence to convince both judges of her role and the fact that throughout this she started out with benign motive, her hope to help Johnny Bobbitt and not to enrich herself or anyone else," Gerrow said.The couple transferred the funds to their bank account and bought a BMW, expensive handbags and went on trips, including to casinos in Pennsylvania, New Jersey and Nevada, according to court documents.McClure transferred ,000 from her bank account to Bobbitt's in December 2017, federal prosecutors said. He received a total of ,000 in the campaign, according to Burlington County Prosecutor Scott Coffina.GoFundMe has since made refunds to thousands of people who donated thinking they were giving to Bobbitt. Both Bobbitt and McClure must pay back the money in restitution, per their state court plea deals.The story began to fall apart after Bobbitt sued McClure and D'Amico, accusing them of withholding the money raised on his behalf."In reality, McClure never ran out of gas and Bobbitt never spent his last for her," according to a US Attorney's Office press release. "D'Amico and McClure allegedly conspired to create the false story to obtain money from donors."The federal cases have not been settled. McClure could face up to 20 years in prison and a 0,000 fine after pleading guilty to one count of conspiracy to commit wire fraud. She will be sentenced on June 19.Bobbitt could face up to 10 years in prison and a 0,000 fine on the federal charge after pleading guilty to one count of conspiracy to commit money laundering. He will be sentenced at a later date. 3964

  

After smoking cigarettes for 15 years, Joe Vondruska decided to make a change in his life. “I have not smoked a combustible cigarette in over seven years. Knowing that, I wanted to spend the rest of my life healthy with my wife, I looked for an alternative to ingest my nicotine,” Joe Vondruska said.For him, that alternative was vaping. His wife Monica says the switch has been beneficial for the both of them.“I’m not smelling cigarette smoke in the morning when I wake up. I’m not hearing him cough and hack loogies off the front deck,” Monica Vondruska said.Monica says multiple people in her life have used vape products to quit traditional smoking. In fact, that’s one of the biggest reasons she and Joe decided to open a vape shop.“We all know that smoking kills, we’ve known that since the 60s and yet today we still have people smoking. In order for us to get that smoking rate down, there needs to be a viable option for people,” Monica Vondruska said.But is vaping a safe alternative to traditional cigarettes? Pulmonary Physician Jeff Sippel with UCHealth in Colorado says first you have to look at the differences between the two. “Smoking of tobacco and marijuana leaves has both dust particulate matter and oils – that’s the tar aspect that someone inhales. Whereas vaping is purified oil from a plant – it’s extracted from a plant,” Dr. Sippel said.According to Dr. Sippel, people who vape aren’t exposed to the harmful particles of combustible cigarettes. However, both products contain oils, which he says isn’t great for the lungs either. “Our lungs like water, our lungs don’t like oil. And so if we vape or smoke, and we get oil products into our lungs, that’s when we have problems,” Dr. Sippel said.Dr. Sippel says vape products often have more concentrated oils of flavoring, CBD, or THC, and that’s why we’re seeing some lung-related illnesses emerge. Consequently, Dr. Sippel says vaping is still a health risk and can’t be recommended by doctors as a good alternative to traditional smoking. Nevertheless, when you put the two side by side, he says there is more evidence to show combustible cigarettes are worse.“We could say that vaping is probably the lesser of two evils.” Dr. Sippel says it will take more time to really study the potential risks to vaping.“Lung cancer as an example takes 20 to 50 years for someone to have that condition related to smoking. So what we don’t know is what is the vaping risk going to look like 20 to 50 years from now,” Dr. Sippel said.He says e-cigarettes haven’t been around long enough for medical professionals to know the extent of their impact. But as a pulmonary physician, Dr. Sippel suggests staying away from both.“I think a goal for this whole category of smoking and vaping would be for somebody to go from their current state of affairs, to less, to zero. And ultimately a goal is zero cigarettes or zero vaping, because that’s in somebody’s health best interest,” Dr. Sippel said.The Vondruska family has witnessed some people achieving that goal with the help of vaping. ”We don’t mind if people get off vaping at all because we’re still a community and we’re still a family and they still drop in which is pretty neat. Probably one of the neatest things about opening a vape shop,” Monica Vondruska said.It’s that community the Vondruskas feel is necessary to help people quit their smoking habit if that’s what they desire. Whatever the case, they stick together like a family. “For years and years and years we’ve been demonized as smokers and kind of outcasted. And when you have a support system of ‘ok let’s step your nicotine down. If this is your goal, let’s do it’. A lot of smokers don’t have that support system,” Monica Vondruska. ************************************If you’d like to contact the journalist for this story, please email elizabeth.ruiz@scripps.com 3869

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