山东为什么痛风石在耳廓(济南哪些是痛风的症状) (今日更新中)

More than 100 law enforcement agencies have withdrawn from helping the Milwaukee Police Department at the Democratic National Convention, three weeks before the big event. According to the police chief, the agencies cited concerns over potential new policies related to crowd control.The Milwaukee Police Department requested the help of more than 1,000 officers from other law enforcement departments for security at the Democratic National Convention. Even though the event will be scaled-down at the Wisconsin Center due to the COVID-19 pandemic, losing many of these officers will make things more complex for Milwaukee police.Chief Alfonso Morales now has to deal with a new task with only three weeks until the DNC.He could not reveal the number of officers he’s lost for security reasons but says the reason agencies pulled out of the convention has to do with the Fire and Police Commission directives given to him last week related to crowd control. Specifically, they’re concerned over the directive to discontinue the use of tear gas and large amounts of pepper spray.“When you rule an unlawful assembly to help break up that crowd, once we deem them unruly, that’s a safe manner in doing so. Not having those tools increases the potential for more violence,” Morales said. “That’s a big concern for the law enforcement community within Milwaukee and outside of Milwaukee.”This is how the departments in West Allis, Fond du Lac and Franklin feel. They’re just three of the local agencies that withdrew. Altogether, they were going to send 30 officers.here does the police department go from here? Morales said he’s concerned if they’ll have enough law enforcement to protect Milwaukee and visitors at the DNC. He doesn’t reject getting help from the National Guard or federal government.“Those will be options and those options are still at the table,” Morales said. 1885

Nearly 20,000 are without power, and up to an additional 192,000 customers could lose power due to wildfires in Southern California.Parts of Southern California have been under red flag warnings as gusty winds have fueled the spread of wildfires. The area has also had low humidity, which also has helped fuel fires.The National Weather Service said on Monday that “if fire ignition occurs, conditions will be favorable for rapid fire spread, long range spotting, and extreme fire behavior which would threaten life and property.”A handful of fires have burned in recent days, the largest is the Bond Fire, which originated in Orange County last week. The fire has claimed over 7,300 acres of land, but firefighters have been able to contain 60% of the fire. 766

Most children starting school this fall find themselves in the same place they ended in the spring – at home. These kids and their parents are having to make the effort to find a routine that works.Mother Kim Alvidrez says she has her twin 6-year-olds treat school from home the same way they would if they were heading to class. That includes having breakfast and breaks at the same time.She sees frustration in her kids for not having one-on-one teacher help and not being around other students.“It’s hard, as a mom to watch your kids. They want it. They want to be there, and they want to be involved but they can’t fully participate,” said Alvidrez. “It’s just their presence that’s counted. And that’s their time. That’s my biggest concern. “Alvidrez says her kids are kept silent during Zoom lessons and are encouraged to not ask questions. If questions are asked, she says it’s limited to one or two.Child psychologists say parents need to work through those struggles and remain positive to help create a better learning environment.“The number one way kids learn is by watching what their parents do,” said Dr. Jessica Hawks, a child psychologist at Children's Hospital Colorado. “So, if a parent can present an optimistic and positive about the fact that their child's in online schooling, the child's more likely to embrace that philosophy and mentality and can really be helpful overall to the engagement.”Hawks says parents also need positive routines for kids, which include proper eating and sleep habits, along with a designated area for kids to do their online work.As for Alvidrez, she says one positive is her twins are in the same class. 1665

More than 20 fire departments are working to burn down a Beaver Dam, Wisconsin apartment building where a deadly explosion happened last week. City officials said dangerous chemicals inside of the structure made it too dangerous for residents to re-enter, and that burning the building to the ground is the safest way to prevent any injuries."We have carefully reviewed this, and we firmly believe this is the action that needs to be taken, unfortunately," said Beaver Dam Fire Chief Alan Mannel at a Wednesday evening news conference. The five, neighboring buildings in the apartment complex were evacuated ahead of Thursday's controlled burn. Streets in the area were shut down at 9 a.m.Around 10 o'clock, firefighters lit both ends of the apartment building at 109 Knaup Dr. on fire and allowed it to burn towards the middle. Large shipping containers were placed around building 109 to help contain the heat and flames. Mannel said staffing of the fire trucks surrounding the building is minimal, and that firefighters only plan to step in and control the flames if they threatened any of the nearby structures. Police on Wednesday identified 28-year old Benjamin Morrow as the man killed in last Monday's blast. According to authorities, Morrow lived in one of the units.Beaver Dam Police Chief John Kreuziger said investigators continue to suspect that Morrow was building a bomb inside of the apartment. According to his obituary, Morrow worked in the quality department at Richelieu Foods in Beaver Dam for almost a year. His obituary describes him as "a hard worker" who "had a good rapport with all those around him."Police and the FBI continue to investigate why Morrow was in possession of the volatile chemicals that required them to eventually burn the building down.Kreuziger on Wednesday declined to comment on what the chemicals inside of the apartment were. City officials said the plan is for evacuated residents to be allowed back into their homes this evening. That's also when they plan to re-open nearby streets. The EPA has placed air monitoring devices in the area. Mannel said the EPA can also test the air in individual apartments within the evacuation zone at the request of residents. 2336

NASA's OSIRIS-REx mission and the asteroid Bennu have had a date planned for two years, and just after noon ET today, they finally got to meet face to face. OSIRIS-REx fired its thrusters for a small burn, putting it about 4.3 miles from Bennu, marking the end of its journey to the asteroid.The mission -- which stands for Origins, Spectral Interpretation, Resource Identification, Security-Regolith Explorer -- is NASA's first asteroid sample return mission. It launched in September 2016 and will spend two years up close and personal with Bennu. First images of the asteroid from the spacecraft's perspective have appeared as it got closer and closer.On Tuesday, the spacecraft will fly within 5 miles of Bennu, which will help design future orbits and map the surface.Over the next year, OSIRIS-REx will survey the asteroid using five scientific instruments on board the spacecraft. These instruments will help it determine a safe location from which to collect a small sample from Bennu's surface that will be returned to Earth in September 2023."Bennu's low gravity provides a unique challenge for the mission," said Rich Burns, OSIRIS-REx project manager at NASA's Goddard Space Flight Center. "At roughly 0.3 mile in diameter, Bennu will be the smallest object that any spacecraft has ever orbited."The sample from Bennu, a near-Earth asteroid, could help scientists understand not only more about asteroids that could impact Earth but about how planets formed and life began.OSIRIS-REx has a camera suite, a laser altimeter for 3D mapping, a thermal emission spectrometer to take temperature and mineral content and spectrometers to measure X-rays, nearly infrared and visible light.An arm mechanism called TAGSAM will reach out to collect the sample from Bennu's surface, making contact with the asteroid for five seconds in July 2020. During this contact, the arm will use a nitrogen gas burst to stir up rock and other materials on the surface so it can capture them. There is enough nitrogen for three attempts if the first is unsuccessful.NASA said the estimated 2.1-ounce sample size equates to about 30 sugar packets worth of dirt and rocks.The arm has a full range of motion, with joints capable of movement comparable to shoulder, elbow and wrist joints. It was "flexed" in space for the first time on November 14."The TAGSAM exercise is an important milestone, as the prime objective of the OSIRIS-REx mission is to return a sample of Bennu to Earth," said Dante Lauretta, OSIRIS-REx principal investigator at the University of Arizona, Tucson. "This successful test shows that, when the time comes, TAGSAM is ready to reach out and tag the asteroid."In 2021, it will be time for the spacecraft to essentially turn around and begin its two-year journey home. The sample will be packed into a capsule that will drop in the Utah desert in 2023.For two years after the return, the sample will be cataloged and analyzed. Afterward, 75% of the returned sample will remain at NASA's Johnson Space Flight Center so it can be used for more research by scientists from around the world.Why did NASA select Bennu out of the 780,000 known asteroids in our solar system?It was discovered in 1999, and scientists have been studying it ever since. The asteroid fits a number of criteria that make it intriguing and convenient.Bennu is relatively close to Earth, and its orbit even crosses that of our planet, making a close approach every six years. Though small asteroids can rotate very quickly, Bennu has a diameter just a bit bigger than the height of the Empire State Building and rotates relatively slowly, each 4.3 hours. This means OSIRIS-REx can match its velocity and touch down briefly.The asteroid could pass close to Earth, closer than the moon, in 2135, with even closer approaches possible in 2175 and 2195. A direct hit is unlikely, but the data gathered during this mission can help determine the best ways to deflect near-Earth asteroids.The asteroid is also old and well-preserved, full of valuable materials that may even contain clues about how life began. Bennu is essentially a leftover from the formation of our solar system billions of years ago, although some of the minerals inside it could be even older.This carbon-rich asteroid could be full of organic molecules, metals, platinum and even water -- the essential ingredients for life. It's because of objects like Bennu that these resources were delivered to Earth during its formation.Asteroids could even serve as fuel stations for robotic and human missions if we can unlock the hydrogen and oxygen inside them, NASA said.Bennu probably broke off of a larger asteroid in the asteroid belt between Mars and Jupiter a couple billion years ago. This knocked it through space until an orbit close to Earth locked it in place. And Bennu is believed to be a grouping of rocks held together by gravity rather than a single object.But its orbit drifts 0.18 miles each year toward the sun, and OSIRIS-REx will enable researchers to understand why and to predict Bennu's movements. This could also explain how it ended up as a near-Earth asteroid."The story of this asteroid is the story of the solar system," said Bashar Rizk, instrument scientist for OSIRIS-REx. "When we understand Bennu, we will understand something fundamental about our solar system."The-CNN-Wire 5356

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