济南男性尿道流白色(济南前列腺怎么治疗) (今日更新中)

George Floyd would have turned 47 years old Wednesday. In honor of his birthday, a new mural in Houston was unveiled showing Floyd’s image alongside messages encouraging people to vote.The brightly colored mural has two signs reading “be the change” and “go vote.” Floyd was born in Houston and a regular customer at the corner store where the mural is painted. 369

Historic numbers of background checks to purchase or possess a firearm have been conducted in June. It's just the latest month with record-breaking numbers since the system was created in 1998. The FBI reported Wednesday that 3.9 million checks were done last month in what's a key barometer of gun sales. The numbers are driven by the crises that have roiled the U.S., including the coronavirus pandemic, an economic recession, protests over racial injustice and calls to reduce police funding. A group representing gunmakers says firearm purchases are a reasonable reaction to the political climate, while gun control advocates say they're concerned first-time buyers don't have enough training. 705

Grab your headphones and prepare to be blown away.NASA just announced it has heard the first-ever "sounds" of wind on Mars. But if you're expecting howling, swooshes and crackles, you're in for a surprise. These are vibrations, captured by NASA's InSight lander, which touched down on the Red Planet just last week. The craft will stay put until November 24, 2020, measuring quakes that happen anywhere on Mars.This week, the craft recorded something unexpected."InSight sensors captured a haunting low rumble caused by vibrations from the wind, estimated to be blowing between 10 to 25 mph (5 to 7 meters a second) on Dec. 1, from northwest to southeast," the agency said.An air pressure sensor and a seismometer recorded the noise through the vibrations in the air and vibrations around the aircraft "caused by the wind moving over the spacecraft's solar panels."This is the only time when vibrations from the lander will be recorded by the seismometer, since it will be moved by the craft's robotic armed and placed on the Martian surface, along with other instruments.The craft's landing comes as part of NASA's mission to explore the planet's deep interior.InSight lander's sensors are designed to detect quakes and air pressure through wind vibrations. The lander will measure whether tremors have the same effect as earthquakes. The Seismic Experiment for Interior Structure (SEIS), the seismometer, will use the vibrations to help scientists configure more about the planet's interior."Capturing this audio was an unplanned treat. But one of the things our mission is dedicated to is measuring motion on Mars, and naturally that includes motion caused by sound waves," Bruce Banerdt, the InSight principal investigator at NASA's Jet Propulsion Laboratory, said in a statement.To better hear this bass sound, it's better you bring out your headphones, or your subwoofer, as NASA suggested.You can hear the sounds here and listen to NASA's news telecon with a panel of scientists here.The-CNN-Wire 2011

Health care worker Amanda Solt is one of the lucky COVID-19 patients who survived the disease.“I remember them pulling my arms up over my head, under my pillow and then they took the pillow, and that's the last thing I remember,” said Solt.She was in the hospital and ICU for weeks back in June. It wasn't until she received a convalescent plasma donation that she started to turn a corner.“They helped me hold the phone up to my ear, so I could give a verbal consent. To help me sit me up in the bed, literally, they were holding me and helping me sign the paper, so I could give consent. And I just remember the nurses were like, ‘say yes.’ Yes, I remember that and honestly, I feel like I owe my life to them and to the person who donated for sure.”The nurses helped Solt take a picture the moment she got the plasma. She says it saved her life and now she's advocating for others to donate.Health and Human Services Secretary Alex Azar also pushed for donations Wednesday during a briefing on vaccines. HHS is increasingly concerned about supply with rising cases.Plasma is given to hospitalized patients earlier now.People with COVID antibodies can donate plasma as often as every seven days for up to three months. Just one donation can help up to four people.“You have the chance to truly, truly make a difference in life or death for somebody,” said Solt.The American Red Cross saw their distributions of convalescent plasma increase 250% in November compared to September. You can make an appointment to donate online through their app or over the phone. 1571

Health officials agree coronavirus cases are going to increase this winter as Americans head indoors to stay warm and closed windows will lead to less ventilation.But what about the dry air inside and outside this time of year, could a humidifier help slow the spread of coronavirus? That is still being debated.A study released this month seems to suggest increasing humidity plays a role in decreasing cases of coronavirus. The study, which has not been peer-reviewed yet, was shared on medRxiv.This study was based on the premise that previous studies have shown that falling humidity is tied to increased transmission rates of other respiratory diseases, like the flu. Researchers looked at more than 3,000 counties around the country and their humidity levels between March and September 2020.The team says they found increasing humidity levels had a negative impact on new cases of COVID-19 in most regions. In two of the regions that showed the highest effect, a 1 g/m3 increase in absolute humidity resulted in a 0.21 and 0.15 decrease in COVID-19 cases.However, there are also studies that show the humidity level had little to no effect on the spread of COVID-19.A study released in early November found the weather had “virtually no impact” on the spread. Instead, they said human behavior changes during weather fluctuations, outside during warmer weather and heading indoor during cold weather, had a large impact.What health and science experts seem to agree on is that the air does get drier in the winter from both the cold air outside and heated air inside. And that without proper ventilation, any coronavirus droplets in a space could linger longer and become more concentrated.This dry air can also cause nasal passages to dry out, which means noses could have less protective mucus. Some doctors have said whether or not the science completely proves humid air can help slow the spread of coronavirus, having more humidity in the air can make this winter more comfortable and noses more able to protect against all virus. 2051

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