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郑州最好的眼科医院在那里
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发布时间: 2025-05-23 21:49:26北京青年报社官方账号
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  郑州最好的眼科医院在那里   

As more and more people are venturing out, some people might be taking a more relaxed stance on wearing masks. This is especially true now that we're months into the pandemic, and the weather is starting to heat up. But is it okay to ask someone to put on a mask who's not wearing one?"I think it’s always reasonable if you see someone not doing something that is helping keeping others safe, then you should feel free to speak up. Particularly if they’re within six feet of your space," said Denver Health Chief Medical Officer Dr. Connie Savor Price.She says it may be a little uncomfortable, and a bit awkward, she says you can always ask. A majority of the states across the country have mask requirements or recommendations. Most of them say you should wear a mask when social distancing is not possible or when you’re inside a business.The CDC also issued a recommendation in April that face coverings should be worn when social distancing is not possible."The hardest thing for me and for others I think is when you’re outside exercising and you’re not within the vicinity of others. And, I think the rules are a little unclear for that. If you’re not within six feet of others then I think it’s okay, but certainly if you’re on a crowded hiking trail, or are in a condition where you’re near others, you should wear a mask and at least put it on when you’re within six feet of others," said Dr. Savor Price.She says the biggest reason to wear a mask isn’t necessarily for your own protection, although you do get moderate protection from them. But, it prevents your respiratory droplets from infecting others if you have the disease. 1649

  郑州最好的眼科医院在那里   

Authorities are investigating interference with police radio communications, websites and networks used by law enforcement and other officials during recent U.S. protests over the death of George Floyd in Minneapolis.Although the efforts to disrupt police radios and take down websites in Minnesota, Illinois and Texas aren’t considered technically difficult hacks, federal intelligence officials warned that law enforcement should be ready for such tactics as protests continue.Authorities have not yet identified anyone responsible or provided details about how the disruptions were carried out. But officials were particularly concerned by interruptions to police radio frequencies during the last weekend of May as dispatchers tried to direct responses to large protests and unrest that overshadowed peaceful demonstrations.During protests in Dallas on May 31, someone gained access to the police department’s unencrypted radio frequency and disrupted officers’ communications by playing music over their radios, according to a June 1 intelligence assessment from the U.S. Department of Homeland Security.Dallas police did not respond to questions about the incident.The assessment, which was obtained by The Associated Press, attributes the Dallas disruption to “unknown actors” and does not say how they accessed the radio frequency. It warned that attacks of various types would likely persist.“Short-term disruptive cyber activities related to protests probably will continue — various actors could be carrying out these operations — with the potential to use more impactful capabilities, like ransomware, or target higher profile networks,” the assessment warns.The assessment noted similar problems with Chicago police’s unencrypted radio frequencies during large downtown protests on May 30 followed by reports of arson, theft and vandalism. Chicago police also have not said how the radio frequencies were accessed, but an official with the city’s Office of Emergency Management and Communications told the Chicago Sun-Times that the tactic was “very dangerous.”Police around the country have encrypted their radio communications, often arguing that it’s a way to protect officers and block criminals from listening in on widely available phone apps that broadcast police radio channels. But media outlets and local hobbyists have been frustrated by the changes, which also prevent them from reporting on issues pertaining to public safety.The Department of Homeland Security issued a separate warning this week reporting that personal information of police officers nationwide is being leaked online, a practice known as “doxxing.” According to the report obtained by the AP, information shared on social media included home addresses, email addresses and phone numbers.Law enforcement agencies have been targeted by online pranksters or hackers in recent years, including by some who claimed to be motivated by on-the-ground protests against police tactics. For example, the hacking collective Anonymous claimed responsibility for the defacement of local police departments’ websites in 2012 as protesters clashed with officers during the Occupy Wall Street movement.Individuals who self-identified as being part of the collective also claimed to have accessed dispatch tapes and other Ferguson Police Department records in 2014 after a white police officer shot and killed Michael Brown, an 18-year-old black man.Like other government entities, law enforcement agencies in recent years have been frequently targeted by ransomware attacks, in which a perpetrator virtually locks up a victim’s computer files or system and demands payment to release them.The prevalence of cyberattacks — which can cause physical damage or far-reaching disruption — and less severe online trickery, such as stealing passwords, has given law enforcement agencies more experience at fending off efforts to take down their websites or access critical information. But hackers adapt too, and governments with fewer resources than private companies often struggle to keep up, said Morgan Wright, chief security officer for the cybersecurity company SentinelOne.“The biggest concern they have right now is the safety of their communities, the safety of their officers,” Wright said of how law enforcement agencies view cyberthreats amid large demonstrations and unrest. “But if you look at what underpins everything we use to communicate, collaborate and operate, it’s all technology.”As large protests gathered steam after the May 25 death of Floyd, a handcuffed black man who died after a white Minneapolis police officer used his knee to pin his neck down for several minutes, Minnesota Gov. Tim Walz said state networks had been targeted. He described the activity as a “a very sophisticated denial of service attack.”But experts said the strategy of bombarding a website with traffic is common and doesn’t always take a high level of skill, counter to Walz’s description. Minnesota’s Chief Information Officer Tarek Tomes later said state services weren’t disrupted.But the efforts got a lot of attention, partly due to unverified online claims that Anonymous was responsible after years of infrequent activity. The decentralized group largely went quiet in 2015 but is still known globally based on headline-grabbing cyberattacks against Visa and MasterCard, the Church of Scientology and law enforcement agencies.Twitter users also made unverified claims that Anonymous was behind recent intermittent outages on the city government’s website in the Texas capital of Austin. Their posts indicated that the disruption was retribution for police officers shooting a 20-year-old black man in the head with a bean bag during a May 31 protest outside of police headquarters.The injured protester, identified by family as Justin Howell, remained hospitalized Wednesday in critical condition.The city’s IT department was looking into the site’s issues, but a spokesman said Monday that he couldn’t provide any information about the cause. He said the website was still experiencing a high volume of traffic.“You should have expected us,” an account purporting to be Anonymous’ posted on Twitter. It also warned that “new targets are coming soon.”The collective’s approach — anyone can act in its name — makes it difficult to verify the recent claims of responsibility. But Twitter accounts long affiliated with Anonymous shared them, said Gabriella Coleman, a professor at McGill University in Montreal who has studied the Anonymous movement for years.People with more advanced and disruptive hacking skills often drove peak instances of attention for Anonymous, and it’s not clear whether that type of activity will resume, she added.“There’s a lot of things going on in the background, people are chatting,” Coleman said. “Whether or not it materializes is another question. But certainly people are kind of aroused and talking and connecting.”___Foody reported from Chicago. Associated Press writer Jake Bleiberg in Dallas contributed to this report.___Acacia Coronado is a corps member for the Associated Press/Report for America Statehouse News Initiative. Report for America is a nonprofit national service program that places journalists in local newsrooms to report on undercovered issues. 7294

  郑州最好的眼科医院在那里   

As more people turn to ketamine infusions to treat depression, researchers issue a new warning, comparing the drug to opioids.The infusions are offered at clinics located across the country. Scientists believe ketamine may treat symptoms of depression by blocking receptors on the brain.At Florida’s Ketamine Health Centers, clinical director May Nunez says they've seen an 85 percent success rate.“A lot of our patients come in, and they are highly suicidal. They are very treatment resistant,” explains Nunez. “They're experiencing high levels of depression. They have one infusion administered, and they come out. I'm basically looking at those symptoms are gone.”But new research from Stanford University is raising questions about using the drug over a long period of time.When patients in the study took an opioid blocker, researchers said their symptoms didn't improve, suggesting ketamine has to activate opioid receptors before treating depression.Researchers say that doesn't mean you shouldn't use ketamine, but instead, that more studies need to be done to fully understand ketamine before it's widely used in the long-term.Nunez says the side effects she's seen have been minimal.“So, what I always tell the patients is, you know, you're not going to get worse,” says Nunez. “You're either going to be in remission, sore or you're simply not going to respond.” 1386

  

As our country works to rebound, companies are managing the pressure of keeping workplaces safe.Employers are taking precautions ahead of Thanksgiving with concerns about the coronavirus spreading over the holiday.Companies are doing everything from issuing memos, reminding workers about the public health guidance on gatherings and travel, to asking workers to sign pledges they'll keep gatherings small.But there are limits to how much say your boss has on what you're doing outside of work.“They are allowed to inquire about what their travel plans might be, what their off-duty conduct might be and they can ask employees to disclose that information,” said Christine Lamb, an employment attorney with Fortis Law Partners.Lamb says many states prevent employers from discriminating against workers who are doing things outside of work that are lawful.But if you aren't following policies your work put in place for COVID-19, they can ask you to go through some type of coaching or counseling.Lamb advises companies against checking in on their workers on social media.“You might have an employee who is at a gathering of 50 people and they're not posting anything on social media. The employer might not know what's going on and another employee that posts a photograph of them with 10 people on social media, there's just a risk of that unequal application of the rules,” said Lamb.She says one thing employers should be thinking about now is what does next week look like for the company post-Thanksgiving. That includes having a plan for people to work from home if that's possible.One drug maker told the Wall Street Journal that it's offering workers a paid 2-week quarantine if they need it after the holiday, where they'll be expected to work from home. 1773

  

Attention 'Rick and Morty' fans: McDonald's will be bringing back Szechuan Sauce.The company will announce details on when and where the sauce will return on Thursday in a three-part podcast series called "The Sauce.""We're doing more than simply bringing back the sauce. We know there were many unanswered questions and even more unbelievable stories from last year's Szechuan saga," the company said on its website.The "saga" refers to last year's incident where the company released the sauce for a very limited release, causing fans that had been waiting for hours to go home empty-handed.We heard you and have been working tirelessly to bring back The Sauce. On 2/22, we announce when/where Szechuan Sauce will return, but also answer the burning question: “What happened to The Sauce?!” To find out, visit https://t.co/Gcrq5kM71E or download the podcast series. pic.twitter.com/ezHbAqL82i— McDonald's (@McDonalds) February 20, 2018 950

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