太原肛门有息肉怎么办(太原市治疗痔疮疼痛) (今日更新中)

MOUNTAIN VIEW, Calif. — With coronavirus cases still surging in the United States, Google has reportedly pushed back the timeline for when its employees will return to their offices.The New York Times and NBC News both report Google is planning to return to in-person working in September 2021, instead of July.That’s according memo sent to staff Sunday, which also said the company would be testing the idea of a “flexible work week” once workers do return to offices.Under the pilot plan, The Times says employees would be asked to work at least three days in their offices for “collaboration days,” and work the other days at home.The CEO of Google’s parent company Alphabet, Sundar Pichai, wrote in the memo that they want to test the hypothesis that flexible work models lead to greater productivity, collaboration, and well-being.Google isn’t alone in testing these kinds of work schedules. Other tech companies like Microsoft, Facebook, and Twitter have expressed interest or released plans for rolling out similar models.Another aspect of getting people back to work will be COVID-19 vaccines. However, it’s still not known whether Google and other large companies like it will require its employees to be vaccinated before returning to their offices.Though, a spokeswoman told The Times that Google has said it recommends that employees obtain a vaccine when it’s available to them and that it may help facilitate vaccinations once the most vulnerable have been inoculated. 1490

Moderna is asking American regulators to allow emergency use of its COVID-19 vaccine. It says its final results show the vaccine is 94% effective.The drug maker says it had 196 COVID-19 cases so far in its study. It says 185 of those participants received the placebo, while 11 got the real vaccine. The 30 people who became seriously ill in the trial didn't get the vaccine.FDA advisors are expected to look at all the evidence on December 17. They'll be checking out Pfizer’s vaccine on December 10.Pfizer and Moderna's success with their COVID-19 trials could impact how vaccines are made in the future.It has to do with how they work. They use what's called messenger RNA (mRNA) technology. The virus' genetic code is injected into the body so it can instruct cells on what antibodies to produce.It hasn't been approved to be used in a commercial vaccine before.“In the future, it's clearly going to be tough to beat RNA vaccines for speed and that's a wonderful thing. Just this demonstration of how incredibly fast they can move has been great. How effective they can be, I think will depend on a particular disease,” said Shane Crotty, Ph.D. with the La Jolla Institute for Immunology.Crotty says the narrowest application for this vaccine technology in the future is a similar situation where there's a new emerging virus."The mRNA vaccine has been tried for other infectious diseases and they have been investigated for cancer. There's a whole area of trying to vaccine against cancer, which has kind of been an elusive target,” said Dr. Alessandro Sette with the La Jolla Institute for Immunology.A big question with an mRNA vaccine is how long its protection will last. While there is encouraging findings, there's no historical comparison to look at.A big thing experts say has helped with a vaccine is there has been a lot of money put towards manufacturing before we even knew it would work.Click here to learn more about mRNA vaccines. 1958

Nearly 1-in-5 new coronavirus cases in the U.S. are among people in their 20s, according to CDC’s data.Those between the ages of 20 and 29 years old have been the largest age group of COVID-19 patients for most of the summer. This age group made up about 15 percent of positive cases in May, then grew to 20 percent in June, 23 percent in July and 21 percent of positive cases in August.In May, COVID-19 patients were more evenly split between 20 to 59 years old, according to data from the Centers for Disease Control and Prevention. As the summer progressed, however, other age groups stayed steady or declined as the 20-to-29 age group more than doubled between May and July.“Younger adults make up a large proportion of workers in frontline occupations (e.g., retail stores, public transit, child care, and social services) and highly exposed industries (e.g., restaurants/bars, entertainment, and personal services), where consistent implementation of prevention strategies might be difficult or not possible. In addition, younger adults might also be less likely to follow community mitigation strategies, such as social distancing and avoiding group gatherings,” CDC researchers wrote.They also said younger adults are more likely to have mild symptoms or no symptoms at all, and could unknowingly transmit the coronavirus to others.The increase in cases among children and young adults between 10 and 19 is also sharp. In May, this age group made up 5 percent of total positive COVID-19 cases. They increased to 7 percent of cases in June, 10 percent in July and more than 11 percent of positive cases in August.The increase in younger patients has decreased the average age of COVID-19 patients in the U.S. from 46 years old in May to 38 years old in August.“Infection is not benign in younger adults, especially among those with underlying medical conditions, who are at risk for hospitalization, severe illness, and death,” the CDC states.Younger children, from infants to 9-year-olds, remained 2-4 percent of total positive COVID-19 cases from May to August.“Given the role of asymptomatic and presymptomatic transmission, strict adherence to community mitigation strategies and personal preventive behaviors by younger adults is needed to help reduce their risk for infection and subsequent transmission of SARS-CoV-2 to persons at higher risk for severe illness,” the CDC report concluded.This week, the U.S. topped 200,000 deaths from COVID-19. This is more deaths than any other country from the coronavirus. 2532

Neanderthals may not have been that different from us, after all.New evidence reveals that they created the world's oldest known cave paintings and even wore seashells as body ornaments. Both behaviors suggest that they thought symbolically and had an artistic sensibility like modern humans. Two studies published Thursday in the journal Science detail the latest findings."Undoubtedly it is showing that Neanderthals were thinking and behaving just like modern humans," Alistair Pike, co-author of the studies and professor of archaeological sciences at the University of Southampton, wrote in an email."We should no longer think of them as a different species, just humans in different places," he said.The new findings of symbolic thinking show that Neanderthals and modern humans were cognitively indistinguishable, the researchers said.Cave paintings and artifacts like painted seashells have long been regarded as the work of early modern humans, who were thought to have more advanced cognitive abilities than Neanderthals. Dating cave paintings can be a difficult process, and unreliable techniques never allowed for the possibility that these could be the work of Neanderthals.Until now, that is. A new technique called Uranium-Thorium dating is less destructive, is more accurate and can go back further in time than other methods. U-Th dating looks at the deposits of carbonate on top of the paint, which contain traces of uranium and thorium that indicate when those deposits formed. That allows the researchers to determine an age for what's under the deposits.The researchers applied this technique to paintings in the La Pasiega, Maltravieso and Ardales caves in Spain, which had never received "robust" dating. The paintings include red and black images of animals, dots, lines, disks and other geometric signs. There also are engravings, hand prints and hand stencils.Those hand stencils are particularly significant, and not just because they represent the hand size of a Neanderthal."A red line, a red dot or even a positive hand print could potentially be made 'accidentally,' " wrote Dirk Hoffmann, lead author of the studies and archaeologist with the Max Planck Institute for Evolutionary Anthropology, in an email."Of course, I am sure that this is not the case, since you would still need to bring [in] light and pigment, but one could argue that all you need is some pigment on your hand when you lean against a wall. A hand stencil cannot be explained like that. You have to hold your hand against the wall and the deliberately spray pigment over this. This is why we emphasize the hand stencil."The dating revealed that the cave art was created more than 64,000 years ago -- 20,000 years before modern humans appeared in what is now considered Europe.The shells were found in the Cueva de los Aviones, a sea cave in southeastern Spain. They are unique because they are perforated with holes and colored with red and yellow pigment. Others served as containers for the mineral pigments themselves. The pigments were used on the shells but could have also been used for the cave paintings and even as body paint.The deposit layer containing the shells dated to 115,000 years ago, which is even older than other shells recovered in Africa that were dated to modern humans."The standard archaeological interpretation of such finds is that they are body ornaments," Hoffmann said. "Similar finds were made in Africa or the Levant with similar age. In Africa or the Levant, these were made by modern humans, in Spain Neanderthals made them. So in terms of symbolism, early modern humans and Neanderthals were similar."The researchers are absolutely confident in their dating technique."We have spent 10 years refining the technique and have numerous quality controls," Pike said. "The dates respect the growth axis of the deposits we are dating, the oldest closest to the painting, the youngest at the surface."Once modern humans left Africa and migrated to Europe and other areas, mixing with the Neanderthals would've been inevitable. The researchers believe that the Neanderthals created this artwork on their own, without being influenced by any other population. But it's possible that they exchanged symbolism or that Neanderthals influenced the art and symbolism of modern humans. Modern humans were capable of symbolic behavior, so it "turns the who's copying who debate on its head," Pike said."The idea that culture only evolved with modern humans no longer makes sense," Pike said. Hoffmann suggested that Neanderthals now be referred to as "very close cousins" of modern humans.Is it possible that anyone else may have created the cave paintings?Pike said it is incredibly doubtful that a population of early modern humans migrated to Europe so early without any other evidence to suggest it."We cannot of course rule out that pre-Neanderthal populations made the art," Pike said. "This sounds like a project for the future."Hoffmann, Pike and their colleagues want to use their new dating technique in more caves in Spain, as well as France and Italy -- and anywhere else Neanderthals are known to lived.The findings also raise new questions for researchers."How far back does symbolic behavior go? Can it be traced to the last common ancestor of modern humans and Neanderthals? This is perhaps where we should be looking," Pike said. 5398

NATIONAL CITY, Calif. (KGTV) - The city of National City set a record in the 2019 Fiscal Year for the amount of grant money they received to pay for road upgrade projects.According to information provided to 10News, National City got around million for what they call "Active Transportation" projects."If we don't get these grants, we're basically just doing roadway maintenance for the next year," says City Engineer Steve Manganiello.The grants will pay for a long list of projects focused on improving bike lanes and pedestrian walkways throughout National City. This comes as cities all across San Diego work to reduce greenhouse gas emissions by emphasizing alternative forms of transporation over driving."We need to give people that don't have acces to vehicles a safe network to bike, to walk and to use transit," says Manganiello. "I think we're well on our way."The city won 14 competitive grants in fiscal year 2018-19, which ends July 1. City Manager Brad Raulston says a unique combination of cooperation, need and preparation made it happen."We're the right size in terms of being small enough that we collaborate well," says Raulston. "We all work closely together. But we're also big enough that we have the resources to make matching funds.""Although we're a relatively small city, we are big in the amount of infrastructure and capital needs," says Raulston.The grants they won and the projects funded include:- Bayshore Bikeway - .4 million (Caltrans)- Central Community Bicycle Corridor - .3 million (Caltrans)- Citywide Bicycle Wayfinding Signage - 0,000 (Caltrans)- Citywide Traffic Signal Upgrades - .4 million (Caltrans)- 8th Street & Roosevelt Avenue Corridors - .2 million (Caltrans); .1 million (SANDAG)- 30th Street/Sweetwater Road Bicycle Corridor - .5 million (SANDAG)- Division Street Bicycle Corridor - 0,000 (SANDAG)- National City Boulevard Inter-City Bicycle Corridor - 0,000 (SANDAG)- Citywide Bicycle Parking Enhancements - ,000 (SANDAG)- 24th Street Transit Oriented Development Overlay - 0,000 (SANDAG)- Waterfront to Homefront Connectivity Study - 0,00 (SANDAG)- Paradise Creek Park Expansion - 0,000 & 0,000 (California Natural Resouces Agency)That money will be on top million worth of projects the city has completed over the last 5 years. They hope to complete another million in the next three."Fiscal Year 2020 is going to be the year of design," says Manganiello. "Fiscal Year 2021 is going to be the year of construction." 2535

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