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济南阳痿取精办法
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发布时间: 2025-05-31 20:53:36北京青年报社官方账号
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  济南阳痿取精办法   

SCRIPPS — For almost 75 years, the stern of the destroyer USS Abner Read lay somewhere below the dark surface of the Bering Sea off the Aleutian island of Kiska, where it sank after being torn off by an explosion while conducting an anti-submarine patrol.Seventy-one U.S. Navy sailors were lost in the aftermath of the blast, during a brutal and largely overlooked early campaign of World War II.Heroic action by the crew saved the ship, but for the families of the doomed sailors, the final resting place of loved ones lost in the predawn hours of Aug. 18, 1943, remained unknown.On July 17, a NOAA Office of Exploration and Research-funded team of scientists from Scripps Institution of Oceanography at the University of California San Diego and the University of Delaware aided by four U.S. Navy sailors assigned to the Naval Special Warfare Group discovered the missing 75-foot stern section in 290 feet of water off Kiska, one of only two United States territories to be occupied by foreign forces in the last 200 years.“This is a significant discovery that will shed light on this little-known episode in our history,” said retired Navy Rear Adm. Tim Gallaudet, PhD, acting undersecretary of commerce for oceans and atmosphere and NOAA administrator. “It’s important to honor these U.S. Navy sailors who made the ultimate sacrifice for our nation.”Abner Read was on patrol at about 1:50 a.m. when the massive explosion — presumed to be from a Japanese mine — ripped the destroyer apart. Somehow the crew kept the main part of Abner Read’s hull watertight, and two nearby Navy ships towed it back to port.“This was catastrophic damage that by all rights should have sunk the entire ship,” said?Sam Cox, curator of the Navy and director of the Naval History and Heritage Command.Within months, the destroyer was back in the war.It went on to fight in several battles in the Pacific Theater before being destroyed in November 1944 by a Japanese dive bomber in a kamikaze attack during the battle of Leyte Gulf. Abner Read received four battle stars for her World War II service.Meanwhile, the ship’s shorn stern was lost but not forgotten. Finding it was a primary goal of the July mission to document the?underwater battlefield off Kiska.In addition to NOAA and Scripps, the project was supported by Project Recover, a public-private partnership that uses 21st-century science and technology and archival and historical research to find the final underwater resting places of Americans missing in action since WWII.Historians have been able to study battles on Kiska and Attu, the Aleutian islands that were attacked and occupied by as many as 7,200 Japanese forces from June 1942 to mid-August 1943, but this Kiska mission was the first to thoroughly explore the underwater battlefield.Many ships, aircraft and submarines from both the United States and Japan were lost during a punishing 15-month campaign to reclaim this distant windy and fogbound corner of America.Now, recent advancements in undersea technology, many developed by the Office of Naval Research, are helping to reveal the forgotten histories of long-ago valor.After multibeam sonar mounted to the side of the research ship?Norseman II identified a promising target, the team sent down a deep-diving, remotely operated vehicle to capture live video for confirmation.“There was no doubt,” said expedition leader Eric Terrill, an oceanographer at?Scripps Institution of Oceanography and co-founder of Project Recover. “We could clearly see the broken stern, the gun and rudder control, all consistent with the historical documents.”“We’ve entered a new age of exploration,” added Mark Moline, director of the?School of Marine Science and Policy at the University of Delaware and co-founder of Project Recover. “New sensors and improved underwater robots that can bring back real-time images are driving new discoveries.”Wrecks like Abner Read are protected from activities that disturb, remove, or damage them or their contents by the?Sunken Military Craft Act of 2004, though exceptions can be made for activities that have archaeological, historical, or educational purposes.The twisted metal and sharp edges of sunken military wreckage can pose life-threatening risks to divers, but according to the Naval History and Heritage Command, there’s a more important reason to protect sites like the Abner Read. They are often war graves, recognized by the U.S. Navy as the fit and final resting place for those who perished at sea.“We take our responsibility to protect those wrecks seriously,” said Cox. “They’re the last resting place of American sailors.” 4715

  济南阳痿取精办法   

Scientists at the University of Nevada, Reno School of Medicine (UNR Med), led by its Nevada State Public Health Laboratory (NSPHL) are studying a likely case of COVID-19 reinfection.Forty-eight days after testing positive for SARS-CoV-2 in April 2020 and after testing negative consecutively twice, a Washoe County, Nevada patient tested positive again, in June.The patient had tested negative on two separate occasions in the interim. The genomes of the patient’s virus samples were sequenced in April and June, displaying significant genetic discordance between the two cases, implying the patient was infected twice.“We examined the genomic material of the viruses and samples to investigate this, says NSPHL Director Mark Pandori. “It is just one finding, but it shows that a person can possibly become infected with SARS-CoV-2 a second time.”To solidify confidence in the case, Pandori and the research team partnered with the Washoe County Sheriff’s Office Biology Unit to conduct identity testing on the specimens and lab samples evaluated in the study to verify the specimens were from the same person.Embedded in the genomic material of SARS-CoV-2 is a detailed code that Pandori says may provide insight to a better understanding of this virus.“A virus has a biological genome like all living things. Since March, the NSPHL has analyzed the genomic RNA of approximately 200 positive COVID-19 samples from Nevadans who have tested positive for COVID-19,” said Pandori. “The power of genomic information could turn the tables in the fight against the coronavirus.” The information is shared to a world-wide database known as “GISAID”,” alongside the work of thousands of researchers.According to Pandori and the NSPHL-led research team, reinfection cases are a potential warning sign that it is possible to catch COVID-19 more than once, and with unpredictable severity.“If reinfection is possible on such a short timeline, there may be implications for the efficacy of vaccines developed to fight the disease. It may also have implications for herd immunity,” says Pandori. “It is important to note, that this is a singular finding. It does not provide any information to us with regard to the generalizability of this phenomenon.”Herd immunity depends on the theory that after natural infection, our immune systems will collectively protect us as a community from reinfection and further spread. There are currently many more unknowns than knowns about immune responses to COVID-19. “After one recover from COVID-19, we still do not know how much immunity is built up, how long it may last, or how well antibodies play a role in protection against reinfection,” says Pandori.”While research and scientific advancements continue to build, Pandori says the hard work of fighting this pandemic together will continue through the use of facial coverings, hand-washing, social distancing, as well as wide-scale testing, contact tracing, and isolation of new cases.“This is a novel disease. We still have a steep learning curve ahead and lots of work to do, especially as inconvenient truths arise,” says Pandori.The NSPHL team are publishing their COVID-19 reinfection findings. Their report is publicly accessible on the SSRN preprint server, at https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3681489. This story was first reported by KTNV in Las Vegas, Nevada. 3384

  济南阳痿取精办法   

Saturday will mark the last time this decade we'll be able to see a blue moon, according to the Weather Channel.A blue moon actually has nothing to do with color —it simply means there have been two full moons in the same calendar month. A full moon occurs once every 29.5 days, so blue moons occur sporadically — about once every two-and-a-half years.When the full moon peaks at 8:37 ET on Saturday, it will mark the second full moon this month. The first full moon occurred on March 2. Take a good look, because it will be awhile before we see one again —Oct. 31, 2020, to be exact.It will actually be the second time this year we've experienced a blue moon. January also saw two blue moons — the first on Jan. 2, the second Jan. 31.2018 marks the first time since 1999 we've seen two blue moons in a single year. It's a phenomena that won't happen again until 2037.Alex Hider is a writer for the E.W. Scripps National Desk. Follow him on Twitter @alexhider. 978

  

SAN MARCOS, Calif. (KGTV) -- The San Diego County Sheriff’s Department is investigating after three people were stabbed in San Marcos Friday night.The department says the stabbing happened on the 300 block of Autumn Drive just before 9 p.m.All three victims were taken to the hospital with non-life threatening injuries, the department said.Although the details surrounding the incident remain unclear, authorities say the suspect is still outstanding. 460

  

SAN FRANCISCO (CNN) - James Schwab, a spokesman for the San Francisco Division of Immigration and Customs Enforcement, has resigned, citing what he says are falsehoods being spread by members of the Trump administration including Attorney General Jeff Sessions."I just couldn't bear the burden -- continuing on as a representative of the agency and charged with upholding integrity, knowing that information was false," he told CNN on Monday.Schwab cited Acting Director Tom Homan and Attorney General Jeff Sessions as being the purveyors of misleading and inaccurate information, following Oakland Mayor Libby Schaaf's controversial decision to warn the community of an upcoming ICE raid.ICE released a press release on February 27 about the operations in Northern California in which Homan stated that "864 criminal aliens and public safety threats remain at large in the community, and I have to believe that some of them were able to elude us thanks to the mayor's irresponsible decision."Sessions also repeated a similar estimate in his remarks while visiting Sacramento last week."Those are 800 wanted criminals that are now at large in that community -- 800 wanted criminals that ICE will now have to pursue with more difficulty in more dangerous situations, all because of one mayor's irresponsible action," Sessions had said.Schwab said he took issue with their characterization."Director Homan and the Attorney General said there were 800 people at large and free to roam because of the actions of the Oakland Mayor," he told CNN. "Personally I think her actions were misguided and not responsible. I think she could have had other options. But to blame her for 800 dangerous people out there is just false.""It's a false statement because we never pick up 100% of our targets. And to say they're a type of dangerous criminal is also misleading."Schwab said he brought up his concerns to ICE leadership and was told to "deflect to previous statements. Even though those previous statements did not clarify the wrong information.""I've never been in this situation in 16 almost 17 years in government where someone asked me to deflect when we absolutely knew something was awry -- when the data was not correct" he said.The Oakland mayor said in response to the former spokesman speaking out, "I commend Mr. Schwab for speaking the truth while under intense pressure to lie. Our democracy depends on public servants who act with integrity and hold transparency in the highest regard."Schwab also said he is a registered Democrat, but has been a loyal federal servant, regardless of which party is in power.CNN reached out to ICE in Washington and the Department of Justice for comment. 2717

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