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2025-05-30 12:28:37
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  武清龙济医院做精索静脉曲张好不好   

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

  武清龙济医院做精索静脉曲张好不好   

As the sun comes over Lake Charles, Guardsmen deploy to clear roadways to assess damages from #Laura. #ProtectWhatMatters pic.twitter.com/xf1ZWVvf8p— LA National Guard (@LANationalGuard) August 27, 2020 210

  武清龙济医院做精索静脉曲张好不好   

Ashley Judd, Salma Hayek and Annabella Sciorra took the stage on Oscar night to deliver a message to Hollywood and beyond: Time's up.The three women are among the more than 60 who have accused the disgraced film producer of sexual assault or harassment that took place over the course of three decades. Weinstein has consistently denied all accusations of nonconsensual sex, but the allegations against him sparked a reckoning in Hollywood that took center stage at the Dolby Theater during Sunday's Academy Awards.The woman stood together and spoke about the #MeToo movement that has swept Hollywood over the past several months and pointed out that this is not an issue that solely affects the movie industry.  725

  

At 3 p.m. ET on Monday, November 26, a group of researchers will be really sweating. The NASA InSight spacecraft will try to land on Mars.After six months of flight, the lander component of the probe will detach itself from the cruise stage and head into the atmosphere. The lander component initially looks a fair bit like the re-entry capsule used in the 1960s and 1970s for the Apollo moon missions -- sort of conical, with a smooth and flat bottom. That bottom is a crucial heat shield that is designed to protect the probe as it passes through the thin Martian atmosphere.The landing is a devilishly difficult feat. The landing capsule has to batter its way through the atmosphere. It will fly through the Martian air at an initial speed of 12,300 mph, and it must hit the atmosphere at an angle of precisely 12 degrees. Any shallower, and the probe will bounce off into deep space. Any steeper, and the probe will burn itself up in a spectacular and fiery death. The probe will first touch the atmosphere six minutes and 45 seconds before landing. During this phase, it will experience acceleration 12 times that of the Earth's gravity. Were the probe a 150-pound human, during the flaming descent, it would weigh nearly a ton.About 3? minutes after the probe hits the atmosphere, a parachute will deploy, slowing down the probe even more. Fifteen seconds later, explosives will blow the heat shield off, exposing the actual InSight probe hidden inside. Ten seconds after the heat shield falls away, the probe will extend its legs, much like an airplane extends its wheels before touching down.The probe will fall for an additional two minutes attached to the parachute and protected by its conical shell. About 45 seconds before InSight lands, it will drop out of the shell and fall toward the surface. As soon as it leaves the shell, its landing rockets will ignite.The actual InSight probe looks a little bit like the Apollo moon lander, with three legs to support it and a boxy top. The rockets will slow it further and stop any remaining horizontal motion. Then, about 15 seconds before touchdown, the InSight probe will descend at a speed of 8 feet per second, before hopefully touching down gently on the Martian surface.The entire landing sequence will take about seven minutes to occur. A radio signal from Mars to Earth currently takes about eight minutes and seven seconds to get here. So the complete landing process will take place before we find out if it was successful. It will be done automatically, entirely by the probe itself. For the scientists and engineers who designed InSight, this is called "seven minutes of terror."And they are right to be worried. Mars is a graveyard of failed probes. There have been 44 attempts by various national space agencies to land on Mars. Eighteen have been successful. Twenty-three have not. Three have achieved orbit but failed at a landing.So, what does InSight hope to achieve? Well, as it happens, a lot. But it's different than the intrepid Curiosity probe, which NASA landed in 2012. InSight will not move around. Instead, it will stay put and tell us of the interior of Mars.One thing it will do is emit radio waves that we can monitor on Earth. By making careful measurements of how the frequency of the radio waves change, we will be able to measure the degree to which Mars wobbles as it rotates. That will tell us something about the core of the planet, specifically its makeup and information on the degree to which it is molten.InSight will also deploy a seismometer to listen for marsquakes (like earthquakes, but Martian-style) and for impacts of meteors on the planet. Information gleaned from the waves the seismometer detects will tell us more about the planet's interior.The third thing InSight will do is to dig below the planet's surface. Using a jackhammer, the probe will drill down 5 meters (16 feet) into the planet and, basically, it will take the planet's temperature.There are many reasons this is interesting. Taking the temperature at that depth will allow planetary scientists to determine how much heat is escaping from Mars. More broadly, this measurement will allow a clear determination of the temperature of the planet much closer to the core.This information will tell us a lot about how Mars formed, which, in turn, will add to the information of how rocky planets, including our own Earth, typically develop.And if you're more of an explorer kind of person and not so interested in Martian geology, it will also tell us how warm the planet is at modest depths, which will tell us if there is any chance of liquid water on the planet. Perhaps obviously, if the Martian subsurface is warm enough, any buried water will be in liquid form and not ice. Finding liquid water would be the key discovery that would make Martian exploration relatively easy. A relatively recent possible discovery of a buried Martian lake was promising, but the data was not conclusive. Knowing that the ground is warm would be very comforting to possible future explorers.Exploring the solar system is the first step toward exploring the stars. The InSight probe will give us --well -- insight into whether this is something that humanity will achieve in the foreseeable future.And maybe Elon Musk's bet on him getting to Mars will become true. 5329

  

Astronaut Nick Hague was ready for a mission that would send him and cosmonaut Aleksey Ovchinin to the International Space Station to join a crew of three that was already on board the station. But just minutes into last week's flight on board the Soyuz MS-10 craft, the crew needed to abort the mission due to a booster failure. The incident marked the first aborted flight of a Soyuz craft in more than four decades. On Wednesday, Hague described the harrowing moments that followed after the booster's failure. “We were tossed back and forth inside the capsule a little bit and thrusted away from the rocket as soon as the launch abort system had recognized there was a problem with the booster," Hague said. That is when Hague's training and past as a US Air Force pilot kicked in. “My career in the Air Force has done a lot to help me prepare for stressful situations like this, whether it’s through deployments or my time in flight test where we have had to deal with failures in aircraft that you’re in and having to get down on the ground immediately,” he said. “We train endlessly to address those types of situations."After surviving an incident at 30 miles above the ground, Hague plans on making another attempt to visit the International Space Station in 2019.   1338

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