徐州几周做四维彩超好(徐州怀孕后多久能做四维) (今日更新中)

At least 29 people were killed during a week of severe weather conditions and devastating flooding in Italy, the country's interior minister said Sunday.Twelve people were confirmed dead on the island of Sicily on Sunday, including nine members of two families, the fire brigade announced on Twitter.The families were dining together when their house was submerged by water from a nearby river that suddenly overflowed.The fire brigade said its divers had found the bodies. Among the victims were two children, 1 and 3 years old.Italy's civil protection agency said it was still looking for a doctor who had been on his way to work at a hospital Saturday night and was missing.High winds and heavy rain have devastated parts of the country over the past week, causing the worst flooding in at least a decade in Venice, damages of more than 1 billion euros (.14 billion) in Veneto and landslides that have cut off villages, authorities said.The situation in Sicily is "dramatic," Prime Minister Giuseppe Conte said Sunday.Conte will call a cabinet meeting to announce a state of emergency in affected regions, he said at a press conference in Palermo, Sicily. 1168

As national rates of hospitalizations, deaths and positive cases of the coronavirus spike, CDC data shows Americans of color who contract the virus are more likely to end up in the hospital.The hospitalization rate overall for Hispanic or Latino COVID-19 patients is about 4.2 times higher than white patients. For American Indians, Alaska Natives, and Black patients, they are roughly 4 times more likely to be hospitalized than white patients.Patients between the ages of 18-49 who are Hispanic, Latino, American Indian or Alaska native are 7 times more likely than white patients of the same age to be hospitalized. Black patients between 18-and-49 years old are nearly 5 times more likely than white patients of the same age to be hospitalized.The findings are part of the CDC’s weekly report on the coronavirus pandemic in America.Weekly rates of hospitalizations have been increasing this fall since late September. Overall, the increase has been driven by patients who are older than 50. However, the CDC finds that weekly hospitalization rates among children have been increased for the last two weeks.The nationwide percent of positivity rate for specimens tested for COVID-19 is at 10.5 percent for the week ending November 7. It was 8.4 percent the week before.As of November 17, the U.S. has reported more than 11.2 million cases of the coronavirus since the pandemic started in March. Nearly a million of those cases happened in just the last week or so, as the virus spreads rapidly across the country. There have been almost 248,000 deaths in this country from the coronavirus. 1600

At 3 p.m. ET on Monday, November 26, a group of researchers will be really sweating. The NASA InSight spacecraft will try to land on Mars.After six months of flight, the lander component of the probe will detach itself from the cruise stage and head into the atmosphere. The lander component initially looks a fair bit like the re-entry capsule used in the 1960s and 1970s for the Apollo moon missions -- sort of conical, with a smooth and flat bottom. That bottom is a crucial heat shield that is designed to protect the probe as it passes through the thin Martian atmosphere.The landing is a devilishly difficult feat. The landing capsule has to batter its way through the atmosphere. It will fly through the Martian air at an initial speed of 12,300 mph, and it must hit the atmosphere at an angle of precisely 12 degrees. Any shallower, and the probe will bounce off into deep space. Any steeper, and the probe will burn itself up in a spectacular and fiery death. The probe will first touch the atmosphere six minutes and 45 seconds before landing. During this phase, it will experience acceleration 12 times that of the Earth's gravity. Were the probe a 150-pound human, during the flaming descent, it would weigh nearly a ton.About 3? minutes after the probe hits the atmosphere, a parachute will deploy, slowing down the probe even more. Fifteen seconds later, explosives will blow the heat shield off, exposing the actual InSight probe hidden inside. Ten seconds after the heat shield falls away, the probe will extend its legs, much like an airplane extends its wheels before touching down.The probe will fall for an additional two minutes attached to the parachute and protected by its conical shell. About 45 seconds before InSight lands, it will drop out of the shell and fall toward the surface. As soon as it leaves the shell, its landing rockets will ignite.The actual InSight probe looks a little bit like the Apollo moon lander, with three legs to support it and a boxy top. The rockets will slow it further and stop any remaining horizontal motion. Then, about 15 seconds before touchdown, the InSight probe will descend at a speed of 8 feet per second, before hopefully touching down gently on the Martian surface.The entire landing sequence will take about seven minutes to occur. A radio signal from Mars to Earth currently takes about eight minutes and seven seconds to get here. So the complete landing process will take place before we find out if it was successful. It will be done automatically, entirely by the probe itself. For the scientists and engineers who designed InSight, this is called "seven minutes of terror."And they are right to be worried. Mars is a graveyard of failed probes. There have been 44 attempts by various national space agencies to land on Mars. Eighteen have been successful. Twenty-three have not. Three have achieved orbit but failed at a landing.So, what does InSight hope to achieve? Well, as it happens, a lot. But it's different than the intrepid Curiosity probe, which NASA landed in 2012. InSight will not move around. Instead, it will stay put and tell us of the interior of Mars.One thing it will do is emit radio waves that we can monitor on Earth. By making careful measurements of how the frequency of the radio waves change, we will be able to measure the degree to which Mars wobbles as it rotates. That will tell us something about the core of the planet, specifically its makeup and information on the degree to which it is molten.InSight will also deploy a seismometer to listen for marsquakes (like earthquakes, but Martian-style) and for impacts of meteors on the planet. Information gleaned from the waves the seismometer detects will tell us more about the planet's interior.The third thing InSight will do is to dig below the planet's surface. Using a jackhammer, the probe will drill down 5 meters (16 feet) into the planet and, basically, it will take the planet's temperature.There are many reasons this is interesting. Taking the temperature at that depth will allow planetary scientists to determine how much heat is escaping from Mars. More broadly, this measurement will allow a clear determination of the temperature of the planet much closer to the core.This information will tell us a lot about how Mars formed, which, in turn, will add to the information of how rocky planets, including our own Earth, typically develop.And if you're more of an explorer kind of person and not so interested in Martian geology, it will also tell us how warm the planet is at modest depths, which will tell us if there is any chance of liquid water on the planet. Perhaps obviously, if the Martian subsurface is warm enough, any buried water will be in liquid form and not ice. Finding liquid water would be the key discovery that would make Martian exploration relatively easy. A relatively recent possible discovery of a buried Martian lake was promising, but the data was not conclusive. Knowing that the ground is warm would be very comforting to possible future explorers.Exploring the solar system is the first step toward exploring the stars. The InSight probe will give us --well -- insight into whether this is something that humanity will achieve in the foreseeable future.And maybe Elon Musk's bet on him getting to Mars will become true. 5329

As people prepare to travel for Christmas, experts are concerned about another spike in coronavirus cases.We are almost a month out from Thanksgiving, and according to the COVID Tracking Project, more than 47,000 people in the U.S. have died from COVID-19 since Thanksgiving.And although the CDC advised against traveling, the Transportation Security Administration screened 9.5 million travelers during the 10-day Thanksgiving travel period.TSA also screened more than 3.2 million people at airports nationwide this past weekend.And as people gear up to spend the Christmas holiday with loved ones, the surge of new COVID-19 cases continues with no end in sight.The Harvard Global Health Institute and Brown School of Public Health created a risk-assessment tool that color-codes states with over 25 new daily cases per 100,000 people. The color red on the map means the state is considered "at a tipping point."According to the Harvard and Brown researchers, the 10 worst states considered to be "at a tipping point" are Tennessee, Rhode Island, California, Alabama, Arizona, Oklahoma, Indiana, Utah, Arkansas, and Delaware.According to Johns Hopkins University data, in Tennessee, the state's positive rate is 19.2%.In Alabama, the state's positive rate is 40.4%. Arkansas's positive rate is 18.7%, Arizona's is 13.1%, Delaware's is 7.7%, 13.3% of COVID tests in California are positive, Oklahoma's positive rate is 21.1%, Indiana has an 11.6% positive rate, Rhode Island is at a 6.3%, and 17.6% of COVID tests in Utah are positive.According to the CDC, between 1.2 million to 2.3 million new cases are likely to be reported in the week ending January 9, 2021. 1671

As the school year comes to a close, students will find many ways to thank their teachers.One student in Lackawanna County, Pennsylvania may have found the best way, by helping his teacher win a new car.Students at the Career Technology Center of Lackawanna County were more than happy to head outside to the parking lot on a beautiful day. The short field trip was about to become a lot sweeter for one of the CTC's teachers, who was awarded the title of Burne Honda's Teacher of the Year.Kyle Linko, a welding technology teacher at the school in Scranton, took the title and the grand prize: a brand new Honda Civic. 631

来源：资阳报