濮阳东方妇科可靠(濮阳东方医院妇科线上医生) (今日更新中)

AAA is expecting the great American road trip to make a big comeback this summer.If that’s how you plan to spend your vacation time amid the pandemic, think about COVID-19 when you pack. Bring face coverings, gloves, thermometers, and cleaning supplies.Don't just think about where you're heading, but where you are passing through. That way, you can avoid hot spots.Gas stations are open, but some rest stops, restaurants, and attractions may be closed or only allowing limited capacity.“A lot of places are requiring reservations,” said Jeanette Casselano, a spokesperson for AAA. “The last thing you want to do is get somewhere and you're not going to be allowed in, because you don't have that reservation, because you haven't called ahead, or you haven't done your research.”AAA also recommends you reach out to your hotel to learn of any new guidelines in place.You can use your cleaning supplies in your room.“Yes, they've been cleaned and they're extra protocols in place for sanitation,” said Casselano. “For peace of mind, wipe down those high traffic areas when you get into your room – light switches, faucets, lamps, and of course the remote control.”You can find help for planning road trips on AAA’s website. They also have a COVID-19 travel restriction map. 1281

According to a recent paper, the Earth is caught directly in the crosshairs of a cosmic hurricane.A swarm of nearly 100 stars, accompanied by an even greater amount of dark matter, is aimed directly at our stellar neighborhood and there's nothing we can do to stop it; in fact, the vanguard is already upon us. This sounds like a perfect summer blockbuster movie, starring The Rock and Chris Pratt, or maybe Scarlett Johansson and Charlize Theron.Except this is for real. But is it a danger? Well, actually, no. Not at all. But it's potentially incredibly fascinating, with lots of interesting scientific interconnections. So, what is really going on?The story starts last April, when the Gaia satellite announced the locations and trajectories of 2 billion stars in the vicinity of the Milky Way surrounding our sun. They released the data to the public.Scientists were then able to look at the data set to see if they could spot anything peculiar. In galaxies like the Milky Way, the most common behavior is that the stars orbit the center of the galaxy in a manner broadly similar to the planets orbiting our sun. However, there are some stars that exhibit unusual motion. About a year ago, astronomers identified some "stellar streams" passing through our celestial neighborhood.One of them, called S1 (for stream 1), consists of nearly 100 stars of similar age and composition, orbiting the Milky Way in a direction exactly opposite that of normal stars. It's kind of like a handful of cars driving the wrong way down the highway, except with a much greater distance between them and with no likelihood of a collision. These stars are spread out over a few thousand light years and they will pass through the solar system's neighborhood over the course of a few million years.Astronomers identified S1 as being part of the remnants of a dwarf galaxy that collided with the Milky Way and was consumed in an epic episode of cosmic cannibalism. Dwarf galaxies are very small, typically about 1% the mass of the Milky Way. They can orbit larger galaxies and collide with the bigger galaxy, adding their mass to the parent. This is what appears to have happened in the case of S1, although the process has taken probably a billion years.Dwarf galaxies often have a disproportionately large fraction of dark matter. Dark matter is a hypothetical and still-undiscovered form of matter that interacts only gravitationally. Scientists have proposed its existence to explain many astronomical mysteries, for example the observation that most galaxies rotate faster than can be explained by the known laws of physics and the stars and gas of which they are composed.While dark matter has not yet been observed, hypothesizing its existence is the simplest and most economical explanation for myriad astronomical mysteries. Averaged over the entire universe, dark matter is thought to be five times more prevalent than the ordinary mass of stars and gas and planets.In dwarf galaxies, the fraction of dark matter is often higher. In Fornax, a well-studied dwarf galaxy orbiting the Milky Way, researchers estimate that the dark matter is between 10 and 100 times greater than the mass found in its stars.If that number holds for S1, the dark matter of the S1 stream is passing through the Earth at a much higher velocity than the more ordinary dark matter that orbits the Milky Way -- about twice as fast. It is thought that S1 dark matter is flying through the solar system at a speed of about 550 km/s, or about 1.2 million mph. While these numbers are impressive, they are misleading. Dark matter, if it exists, is extremely diffuse and it will have no discernible effect on the solar system.Because dark matter hasn't been observed yet, these velocity numbers are speculative, although they are strongly supported by a very large body of evidence. However, the prospect of high velocity dark matter flying through the Earth has suggested an opportunity to detect it.In a paper in the prestigious journal Physical Review D, researcher Ciaran O'Hare and his collaborators calculated the possibilities of discovering dark matter using both existing and proposed dark matter detectors. They considered two varieties of dark matter particles: a very heavy kind called a WIMP (weakly interacting massive particle) and a very light kind called an axion. Because the ultimate nature of dark matter is not known, it is important to be open to all possibilities.They found that the detectors they evaluated could find WIMPs for certain ranges of the particle mass. However, when they looked at the axion possibility, it appeared the prospects were even better. Because of its light mass and the manner in which an axion would interact with the detector, the apparatus simply has a better chance of seeing the axion. (If axions exist, of course.)Experiments with names like ADMX, MADMAX and ABRACADABRA are able or will be able to search for the signatures of dark matter proposed in the recent paper. They consist of technologies that are designed to interact with axions in a strong magnetic field and convert them to ordinary microwaves or radio waves that can be easily detected.It's important to remember that the S1 stream poses no credible threat to the Earth and humanity. There is no need for an action hero to save us. However, the synergy of science is staggering. A careful catalog of nearby stars has opened the prospect of a better possibility of finding and identifying dark matter, which is one of the great unanswered mysteries of modern physics. It's an amazing time we live in, in which we can study such things.\ 5625

After former Fox News anchor Gretchen Carlson went public with sexual harassment allegations against Roger Ailes, scores of women reached out to her with their own similar stories, she said.One common theme emerged: The women lost their jobs one way or another while their harassers kept theirs, she said."Why should women be stripped of the American dream? And, we watch predators fall and the next week we talk about 'where will they land again' with their job?" Carlson said Thursday at CNN's town hall on sexual harassment. 535

A Wisconsin woman's death was possibly caused by an infection from a dog lick, the same infection that is plaguing one West Bend, Wisc. man. Earlier this month Greg Manteufel developed a similar infection, resulting in the amputation of his hands and legs. Doctors believe it was from a bacteria transferred to him when a dog licked him. Sharon Larson had just gotten a puppy. It nipped at her, causing a minor cut. A day after taking him to the vet for a check-up, Larson was rushed to the hospital. “I was told she could get struck by lightning four times and live, win the lottery twice,” said Sharon’s husband Dan Larson. “That’s how rare this is supposed to be."Dan Larson is still in shock. He thought she had the flu.“General antibiotics that they put her on didn’t do anything,” he said. Within two days at Wheaton Franciscan in Franklin, Sharon Larson was dead, at 58-years-old. “I feel like I got robbed. Lost my right arm. My best friend,” Dan Larson said. Doctors told him she tested positive for capnocytophaga. They say the bacteria, found in the saliva of most dogs, cats, even some humans, is rarely problematic and almost never deadly. But when certain people come in contact with it, it can have devastating consequences, like for Sharon. “I had no knowledge,” said Sharon’s son Steven Larson.Sharon’s son wants more answers since there is no real tracking of how many cases there have been.“What do you want people to know? To always be more cautious. cut to people think nothing of getting a simple dog bite. But even something so simple... can go wrong,” he said.  1653

A woman who was shopping at Heinen's grocery store in Bay Village, Ohio on Friday walked out of the store to find that her car was missing.As it turns out, another woman accidentally took the car home, thinking it belonged to her.According to Bay Village police, the two white Lexus cars were parked next to each other in the parking lot. A 60-year-old woman walked out and took one of the cars, thinking it was hers. When the other woman came out to get in her car, she realized it was gone. Police said the woman had left the keys in her car when she parked.The 60-year-old woman realized she was in the wrong car when she got home and was unable to open her garage. The car was returned to its rightful owner. 745

来源：资阳报