中山结肠炎与直肠炎的区别(中山大便出血怎么回事呢) (今日更新中)

T-Mobile and Sprint finally agreed to a massive telecom merger after years of negotiations punctuated by two breakups.The  billion merger, announced Sunday, values Sprint near its current share price of .50.The tie-up would position the telecom companies as fiercer competitors to Verizon and AT&T, which have long dominated the US market."I'm excited to announce that @TMobile & @Sprint have reached an agreement to come together to form a new company -- a larger, stronger competitor that will be a force for positive change for all US consumers and businesses! Watch this & click through for details." said T-Mobile CEO John Legere, in a tweet Sunday.A report that the deal was getting close drove up Sprint's stock price by 8% on Friday and T-Mobile's price edged up as well. The stock price for SoftBank, a Japanese conglomerate with a majority stake in Sprint, rose by 3%.Sprint and T-Mobile first discussed a merger in 2014 but scrapped it because of concerns about regulatory challenges from the Obama administration.The companies expected to have a better shot at the merger under the Trump administration.Sprint stock tanks as T-Mobile merger said to collapseSoftBank CEO Masayoshi Son met with Trump the month before he took office to talk up an investment in US businesses.A few weeks later, T-Mobile's Legere said he was open to "various forms of consolidation" when asked about a potential merger with Sprint and SoftBank under the Trump administration.But last November, after much speculation, the two companies issued a statement saying they "have ceased talks.""While we couldn't reach an agreement to combine our companies, we certainly recognize the benefits of scale through a potential combination. However, we have agreed that it is best to move forward on our own," Marcelo Claure, the Sprint CEO, said at the time.Sprint and T-Mobile's announcement is just the latest step in an ongoing movement towards telecom consolidation. AT&T is in talks to acquire Time Warner, which owns CNN and CNNMoney. The outcome of that billion merger-in-the-making depends on a case in federal court, which is pending the decision of the judge. 2203

Their youthful brains were developing normally, with no signs of developmental, psychological or neurological problems. None had ever had a concussion. But by the end of a single football season, 24 children between the ages of 9 and 18 who had more frequent impacts to the head showed signs of damage to brain development, new research says."Repetitive head impact exposure may have a cumulative effect in the rapidly developing brains of youth and high school football players," said study co-author Gowtham Krishnan Murugesan, a radiology research assistant at UT Southwestern Medical Center in Dallas, adding that the results mirror other recent findings.The study outfitted 60 youth and high school football players who had no history of head trauma or developmental issues with a head impact telemetry system that measures the magnitude, location and direction of impacts to the head. The researchers were not looking at whether the impact resulted in a concussion, only that impact occurred.The children were sorted into two categories: high cumulative head impact players (24) and low cumulative head impact players (36).Before beginning to play, each child had a resting state functional scan, known as an fMRI; the scans were repeated at the end of football season. The researchers were trying to see how exposure to repetitive hits affects the normal "pruning" process in the brain that occurs during adolescence."Pruning is an essential part of brain development," Murugesan said, comparing the process to how a tree needs to have dead or unneeded branches cut to keep it healthy and allow it to grow."Disruption in normal pruning has been shown to be related to weaker connections between different parts of the brain," he said.After comparing the functional MRI results to the player's level of impact, the researchers found that youth in the high-impact group had damage to their brains' pruning process after one season."Our study has found a significant decrease in gray matter pruning in the frontal default mode network, which is involved in higher cognitive functions, such as the planning and controlling of social behaviors, " Murugesan said.Although the "teenage years are a critical time for brain development, brain remodeling or synaptic pruning, this was a short-term study and did not follow the players longitudinally over several years. We don't really know the full application," said Dr. Julian Bailes, director of neurosurgery and co-director of the NorthShore University HealthSystem Neurological Institute, who was not involved in the research.Weill Cornell neurologist Dr. Richard Isaacson, who was also not involved in the study, called the research "early" and said the results don't necessarily "translate to a clinical or cognitive outcome." More research is needed to see whether the decline in brain pruning permanently affected the child's cognitive function or whether the brain's natural plasticity allowed it to repair itself."I would call this a pilot study," Isaacson said. "The call to action would be that we need more robust longitudinal studies with a pre- and a post-assessment of more than brain imaging. The study should also measure cognitive and neurological function and look for changes."As we learn more about the issue, Isaacson said, parents should do everything they can to limit contact in sports, "especially in practice before games, where studies show the majority of contact occurs." 3464

TIJUANA, Mexico (AP) — Hundreds of Tijuana residents have congregated around a monument in an affluent section of the city south of California to protest the thousands of Central American migrants who have arrived there via caravan in hopes of a new life in the U.S.The locals waved Mexican flags, sang the Mexican national anthem and chanted "Out! Out!" on Sunday in front of a statue of the Aztec ruler Cuauhtemoc, 1 mile from the U.S. border.They accused the migrants of being messy, ungrateful and a danger to Tijuana.RELATED: CBP commissioner nearly clobbered with rock while touring Friendship Park borderThey also complained about how the caravan forced its way into Mexico, calling it an "invasion." And they voiced worries that their taxes might be spent to care for the group as they wait possibly months to apply for U.S. asylum.RELATED: Migrants won't see armed US soldiers on border 918

There have been 80 confirmed cases of the polio-like illness known as AFM in 25 states this year as of Friday, the US Centers for Disease Control and Prevention said Monday.In addition, there are 139 cases under investigation for a total of 219 confirmed and suspected.This is eight more confirmed cases than the agency reported last week and 20 additional patients under investigation.The CDC noted an increase in reports of patients under investigation who began experiencing symptoms in August, September and October. It has not identified the 25 states with confirmed illnesses, nor has it said how many states are reporting cases under investigation.AFM, or acute flaccid myelitis, is a rare illness that affects the nervous system, especially the gray matter in the spinal cord, and can cause muscle weakness and sudden onset of paralysis. Last month, the CDC said that 90% of patients since 2014 have been children under the age of 4, although adults can also develop AFM.Other symptoms include drooping of the face or eyelids, difficult eye movement, trouble swallowing or slurred speech.Research is underway to determine the cause of AFM, although there is a focus on enteroviruses, which can cause respiratory illness and West Nile virus, and other viruses in that family.According to the CDC, there have been 404 confirmed cases in the United States since August 2014. The number of cases may be higher, but the condition is not subject to mandatory reporting, so not all cases are reported to state health departments and therefore may not be counted by the CDC."Even with an increase in cases since 2014, AFM remains a very rare condition. Less than one in a million people in the United States get AFM each year," the CDC says.AFM peaks every other year seasonally in late summer and fall. but experts have yet to identify a single factor geographically or otherwise to explain the cause. Also unknown: why some patients recover and others have prolonged effects. 1985

TOKYO (AP) -- The decades-old dream of zipping around in the sky as simply as driving on highways may be becoming less illusory.Japan's SkyDrive Inc., among the myriads of "flying car" projects around the world, has carried out a successful though modest test flight with one person aboard.In a video shown to reporters on Friday, a contraption that looked like a slick motorcycle with propellers lifted several feet (1-2 meters) off the ground and hovered in a netted area for four minutes.Tomohiro Fukuzawa, who heads the effort, said he hopes to turn it into a real-life product by 2023, but acknowledged that making the vehicle safe was critical. 658

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