梅州急性附件炎可以诊治好吗-【梅州曙光医院】,梅州曙光医院,梅州妇科医生在线问答,梅州做可视人流大概价格,梅州脸填充脂肪多少钱,梅州妊娠多少天适合流产,梅州哪个医院能做超导可视人流,梅州尿道炎要怎么医好

Maybe music artist Moby was right, and “we are all made of stars.” New research suggests the calcium in our teeth and bones came from star explosions.Researchers from Northwestern University looked at a calcium-rich supernova with x-ray imaging, which provided a glimpse into the last month of the star’s life and ultimate explosion.The findings, published in The Astrophysical Journal, suggest a calcium-rich supernova is a compact star that gives off an outer layer of gas as it’s dying. When it explodes, the star’s matter collides with material, emitting bright x-rays.The explosion is so intensely hot and high pressure, it allows nuclear fusion to produce a massive amount of calcium in mere seconds. Typically, a star creates a small amount of calcium slowly by burning helium.Half the calcium in the universe likely came from calcium-rich supernovae.“These events are so few in number that we have never known what produced calcium-rich supernova,” said Wynn Jacobson-Galan, a first-year Northwestern graduate student who led the study. “By observing what this star did in its final month before it reached its critical, tumultuous end, we peered into a place previously unexplored, opening new avenues of study within transient science.”The observed explosion was named SN 2019ehk in the Messier 100 galaxy. If that sounds a little too fantasy, just know it was 55 million light years from earth.“Without this explosion, you wouldn’t know that anything was ever there,” Margutti added. “Not even Hubble could see it.”The team was able to look at images from the Hubble Telescope of the area of SN 2019ehk before the explosion to compare before and after.The researchers are working on a follow-up study that includes how the supernova is evolving after the explosion, according to statements made to CNN. 1821
MENLO PARK, Calif. – Facebook is offering to pay some of its users to deactivate their accounts in the weeks leading up to the 2020 election.It’s part of a new research partnership Facebook is launching to better understand the impact its website and Instagram have on key political attitudes and behaviors during U.S. elections.“We need to better understand whether social media makes us more polarized as a society, or if it largely reflects the divisions that already exist; if it helps people to become better informed about politics, or less; or if it affects people’s attitudes towards government and democracy, including whether and how they vote,” said Facebook when it announced the study Thursday.Facebook expects between 200,000 and 400,000 adults will choose to participate in the study. In a press release, the company said participating “could include taking part in surveys or agreeing to see a different product experience.”The company also said, “other participants may be asked to stop using Facebook or Instagram for a period of time. A subset of participants may be asked to install an app on their devices – with their permission – that will log other digital media that they consume.”The press release did not mention compensating participants, but screenshots tweeted out by Washington Post reporter Elizabeth Dwoskin show Instagram users being asked how much they’d need to be paid in exchange for deactivating their account in late September, for either one week or six weeks.Facebook spokesperson Liz Bourgeois responded to Dwoskin’s tweet, saying that anyone who chooses to opt in, whether it’s completing surveys or deactivating Facebook or Instagram for a period of time, will be compensated.“This is fairly standard for this type of academic research,” Bourgeois wrote.Anyone who chooses to opt in – whether it’s completing surveys or deactivating FB or IG for a period of time – will be compensated. This is fairly standard for this type of academic research. More here: https://t.co/uw4B8XhsYY— Liz Bourgeois (@Liz_Shepherd) September 3, 2020 While participants and Facebook employees will be compensated, the company says it will not be paying its external research partners, a team of independent academics, two of which serve as chairs of Social Science One committees. They’re said to be experts in the fields of elections, democracy and social media.Facebook says researchers will select and invite representative, scientific samples of people in the U.S. to participate in the study.“Some potential participants will see a notice in Facebook or Instagram inviting them to take part in the study,” wrote Facebook. “Study samples will be designed to ensure that participants mirror the diversity of the US adult population, as well as users of Facebook and Instagram.”Facebook said last week that the study will start soon and end in December, but it doesn’t expect to publish any findings until mid-2021 at the earliest and it doesn't expect the research to affect the outcome of the election. 3038

Millions of homeowners and renters have been struggling to make housing payments since March.“The latest census pulse survey shows about a third of renters have little to no confidence that they will be able to make rent,” said Alieza Durana with Princeton University’s Eviction Lab.It’s been tracking the affordable housing crisis in America, but particularly how that has manifested during this pandemic.“We have counted over 39,000 evictions between March and August,” said Durana.Those evictions took place because the CARES Act’s federal moratorium on eviction only covered tenants in properties with federally backed mortgages, which is estimated to be about a third of all renters.However, more than a month ago, even that partial protection expired, and millions of Americans have been lingering with concern over whether they can keep a roof over their heads.“In the absence of government intervention, it doesn’t look good,” said Durana.Late Tuesday afternoon, the Centers for Disease Control and Prevention (CDC) issued a 37-page order that will ban evictions in order to reduce the spread of coronavirus. The order applies to owners and tenants of “any” residential property.However, there are a few important caveats.First, in order to be protected from eviction, you are required to provide your landlord with a signed copy of the declaration form that is located at the end of the CDC’s order.Secondly, on the form, you have to swear that your income is below the CDC’s outlined threshold and that you are unable to make full rent payment because of a substantial loss of household income. The CDC’s income threshold is ,000 for single filers and 8,000 for joint filers.Lastly, renters have to certify on the form that they will continue to pay whatever portion of their rent that is manageable and that they are aware whatever rent was not paid will still be owed in addition to late fees.The CDC’s order protects renters until the end of 2020, but it does not protect homeowners against foreclosures. So far, there is no mention from Congress or from the Trump Administration of help to landlords. 2128
MGM, Universal and Bond producers, Michael G. Wilson and Barbara Broccoli, announced today that after careful consideration and thorough evaluation of the global theatrical marketplace, the release of NO TIME TO DIE will be postponed until November 2020. 262
Madonna says she meant no d-i-s-r-e-s-p-e-c-t when she shared a story about her connection to the late Aretha Franklin during the MTV's Video Music Awards on Monday night.Madonna said she was asked to present the award for video of the year at the VMAs and told to "share any anecdotes I had in my career connected to Aretha Franklin." But she did "not intend to do a tribute to her," according to a post the singer shared on Instagram."I shared a part of my journey and thanked Aretha for inspiring me along the way. I did not intend to do a tribute to her!" Madonna wrote. "That would be impossible in 2 minutes with all the noise and tinsel of an award show. I could never do her justice in this context or environment." 751
来源:资阳报