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  郑州做腹膜外剖宫产多少费用   

According to PETA’s latest press release, cow’s milk is a symbol of white supremacy.In a statement, the animal rights group links the dairy industry’s treatment of the cows to the concept of white supremacy.“Aside from ‘lactose-tolerant’ white supremacists, cow’s milk really is the perfect drink of choice for all (even unwitting) supremacists, since the dairy industry inflicts extreme violence on other living beings,” the organization said in part.“PETA is trying to wake people up to the implications of choosing this white beverage and suggesting that they choose something else pronto,” the statement continues.The release further claims that the dairy industry has “control over your mind.” Read the full statement by clicking here. 748

  郑州做腹膜外剖宫产多少费用   

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

  郑州做腹膜外剖宫产多少费用   

According to the Federal Bureau of Investigation, the number of background checks for gun sales on Black Friday reportedly slipped nearly 8% this year. However, it was the fourth-highest single-day total on record in 2020.According to USA Today, the National Instant Criminal Background Check System (NICS) recorded 186,645 checks on what's typically the biggest shopping holiday of the year, but in 2019, the FBI conducted 202,465.The agency has processed more than 32 million requests through October, which is 4 million more than the previous record set last year, which was 28.3 million.This year's Black Friday was unprecedented due to the coronavirus pandemic continues to ravage the country. According to data from Johns Hopkins University, 205,000 new cases were reported the day after Thanksgiving. 815

  

Amazon's search for the perfect home for its next headquarters could be leaning towards larger cities.Executives have visited some of the bigger names on the list of 20 finalists in recent months, according to a report in the Wall Street Journal. They dropped in on New York City, Miami, Chicago and Newark, while possibly ghosting smaller or more suburban ares like Raleigh, North Carolina, and Montgomery County, Maryland.Amazon may have decided that a city is necessary for luring the best employees."The key for Amazon is that they want to build a second HQ that is an attractive place to live and work for young professionals. This is why quality of life in the city will matter," said Nathan Jensen, a professor of government at the University of Texas at Austin.Other than both being finalists for HQ2, places like Miami and Montgomery County don't have much in common. Miami is a cosmopolitan city that draws business and tourists from around the world. Montgomery County, located outside of Washington D.C. is less well known and lacks some of the splashier attractions of a warm city perched on the beach.Not getting Amazon could be a mixed blessing for the less urban locations. Absorbing up to 50,000 new workers would be a major undertaking, notes Jensen. And many of those would be high-wage positions, which could recreate some of the issues with soaring housing costs, income inequality and gentrification seen in Amazon's home base, Seattle, as well as other regions with major tech companies.The issues wouldn't be insurmountable."Unlike an unplanned expansion of the workforce, cities do have the ability to plan for this. This has been one of my disappointments in not seeing most cities HQ2 proposals. This is exactly the time when we, as a community, can thinking solutions to these challenges," said Jensen.Amazon has searched for a home for its second headquarters — nicknamed HQ2 — for more than a year. The company has whipped up suspense around the decision. It has cities competing with glossy proposals and tax cuts and Amazon watchers are eagerly looking for clues, and odds-makers are aking bets.The new facility would create 50,000 jobs and cost billion to build. After the company received 238 proposals, it selected 20 finalists cities and metropolitan areas in January. Amazon has said it will announce the winning city by end of the year. 2405

  

A woman whose dog was killed by a questionable service dog is now taking action against its owner.Christine Haddow rescued a black, miniature poodle she named Nick. During one walk on a park path in western Colorado, Haddow and Nick encountered a great Dane."Massive. He was massive," Haddow recalls.She tried walking past the big dog and its owner, when all of a sudden, the great Dane lunged toward the miniature poodle.“The great Dane attacked him from behind and started shaking him like he was a rag doll, and he was screaming,” says Haddow. “I kicked the great Dane in the head, and he dropped Nick."The injuries were too much for the miniature poodle, who had to be put down.Haddow later learned the great Dane’s owner claimed the dog was a service dog. The owner of the great Dane showed animal control investigators a service dog certificate she got online. However, the online application never claimed the dog had been trained. 946

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