成都下肢动脉硬化比较好的医院-【成都川蜀血管病医院】,成都川蜀血管病医院,成都治疗血管瘤要多少费用,成都哪里看雷诺氏症看的好,成都治婴儿血管瘤多少钱,成都哪个医院治老烂腿,成都精索静脉曲张专科医院那家好,成都诊治静脉曲张好的医院

Brand new life, brand new life, brand new life, around the bend. #WhosTheBoss https://t.co/giWujLACI4— Alyssa Milano (@Alyssa_Milano) August 4, 2020 156
Beyoncé sent a letter to Kentucky Attorney General Daniel Cameron on Sunday demanding justice for Breonna Taylor.Taylor was shot and killed in her home on March 13 after police executed a no-knock warrant. According to NBC, Taylor's family said her death was a part of a botched raid. Since her death, Louisville and the federal government have introduced legislation that bans no-knock warrants. However, for Beyoncé, that's not enough. In her letter, she asked that the officers involved be held accountable for their actions. She mentioned that no arrests have been made, and the officers are still employed by the department. After explaining the situation, Beyoncé asked for three things in her letter. Those are:Bring criminal charges against Jonathan Mattingly, Myles Cosgrove, and Brett HankisonCommit to transparency in the investigation and prosecution of these officers' criminal conductInvestigate the LMPD's response to Breonna Taylor's murder, as well as the pervasive practices that result in the repeated deaths of unarmed Black citizens 1062

Being home more during the pandemic, and with less traffic on the roads from stay-at-home orders, many people have heard more bird calls and the sounds of nature in urban areas. Scientists now say at least one bird species has been able to adjust their bird song because of the lack of human noise to compete with.Researchers have been studying the white-crowned sparrows in and around San Francisco for more than two decades. They compare their songs in recent years with recordings made in the 1970s.They found as traffic levels increased over the decades, the lowest frequencies of the sparrows’ song rose. This allowed their song to be heard above the low hum of vehicles. The top frequencies remained the same, so the total frequency bandwidth of their communication was narrowed.Degrading their songs this way, and limiting their range, makes them less effective at deterring rivals, attracting mates, or hearing their own chicks, according to researchers. In noisy environments, birds have to sing louder, which research has shown can result in stress and can speed up a bird’s aging and disrupt their metabolisms.When stay-at-home orders and coronavirus pandemic safety measures were put in place in March, the lead researcher, Elizabeth Derryberry, remembers seeing an image of the Golden Gate Bridge in San Francisco completely empty of cars or humans. She wondered how the sparrows were responding.They compared audio recordings of the bird songs from spring 2015 and 2016, to those taken this spring. The recordings were made in a variety of urban and rural locations around the greater San Francisco area.“We found that birds sung at lower minimum frequencies, achieving greater bandwidth songs in newly open acoustic space. An increase in frequency bandwidth results in the transmission of more information and greater vocal performance,” the study states.The samples taken in 2020 revealed the white-crowned sparrows had changed their tune, so-to-speak, and were singing softer and using a wider range of frequencies. They also were able to communicate twice as far as previous recordings.“This doubling in communication distance could elevate fitness by reducing territorial conflicts and increasing mating potential,” researchers stated.Researchers also say this explains why more people report hearing birds during the pandemic. Since the songs are traveling farther distances, humans are able to hear more of them.They also say the changes in the birds’ songs were more pronounced in urban areas compared to the rural location samples. This would make sense, they say, because the traffic noise did not change as drastically in the rural locations during the pandemic.“Our findings indicate that songbirds like white-crowned sparrows have a striking capacity to exploit newly empty soundscapes following acute but ephemeral amelioration of noise pollution, suggesting that lasting remediation might engender even more promising outcomes, such as demographic recovery and higher species diversity in urban areas,” they concluded. 3055
BONITA (KGTV) -- Neighbors in Bonita say their street is becoming congested with "toll dodgers" - drivers who are going out of their way to avoid paying the .55 toll on State Route 125. It's not just the traffic buildup that neighbors find concerning, it's that these drivers are often speeding - right past an elementary school, parks and horse tracks. In a community meeting Tuesday, the City shared plans to fix the issues on Briarwood and San Miguel Ranch roads. RELATED: Drivers dodging tolls on SR 125 cause problems in South Bay neighborhood"There's a lot of concern about people trying to evade the tolls," said Greg Cox, with the San Diego County Board of Supervisors. As a result, Cox said the City lowered the speed limit on San Miguel Road to 25 mph and placed a stop sign at a popular horse crossing. They also plan to intall a traffic signal at Sunnyside Elementary School. "If the County can secure a grant for the funding, that could be done within the next year," Cox said. John Scott has been in the neighborhood since the mid 1980s. He's noticed the buildup up of traffic over time, and says...he can't fault the drivers for trying to save a buck. "They got as much right to use the road as anybody else has to use the road," he said. 1327
BERLIN (AP) — The United States has formally left the Paris Agreement, a global pact forged five years ago to avert the threat of catastrophic climate change. Wednesday's move was long threatened by U.S. President Donald Trump and triggered by his administration a year ago. It further isolates the United States in the world but has no immediate impact on international efforts to curb global warming. There are 189 countries remain committed to the 2015 accord, which aims to keep the increase in average temperatures worldwide “well below” 2 degrees Celsius compared to pre-industrial levels. Scientists say that any rise beyond 2 degrees Celsius could have a devastating impact on large parts of the world, raising sea levels, stoking tropical storms and worsening droughts and floods. 797
来源:资阳报