成都前列腺肥大治疗好的医院(成都那里治疗{静脉炎}) (今日更新中)

LOS ANGELES, May 30 (Xinhua) -- The American Academy of Pediatrics (AAP) warned on Monday that children should keep away from energy drinks which may be dangerous for minors.The AAP urged young children and teens to avoid energy drinks entirely, saying routine consumption of sports drinks should be limited or eliminated.Energy drinks include such popular brands as Red Bull, AMP and Rockstar, the AAP said in a report.These drinks, the report said, tend to be heavily caffeinated, potentially having several times the level of caffeine found in a cup of coffee.In addition, manufacturers often add sugar and herbal stimulants such as guarana and taurine to the drinks, which are popular among kids, according to the report."There's no place for energy drinks for kids," said report co-author Dr. Marcie Beth Schneider, an adolescent physician in Greenwich, Connecticut. "There's a place for sports drinks, but that place is very specific."The caffeine in energy drinks can lead to high blood pressure, high heart rate and insomnia, she said.The other ingredients can boost the power of the caffeine, she said, adding that the drinks will have a greater effect on children because they're smaller than adults."Kids don't need to have this," she said. "This is not something they should be drinking."Schneider declined to identify any energy drinks that may be better than others for kids who insist on drinking them. If kids use energy drinks because they're tired, she said, they should get more rest instead of chugging caffeine.Half of the nation's 5,448 reported caffeine overdoses in 2007 were in people under age 19, although it's not known how many of the cases were the result of energy drink consumption, according to statistics provided by the AAP.

SAN FRANCISCO, July 6 (Xinhua) -- Facebook on Wednesday introduced a new video calling feature powered by Skype and some improvements to the chat designs on the social networking site.According to Facebook, users can reach video calling from a new "Call" button on a friend's profile or from the chat panel after downloading a Skype application. A recipient will receive an alert that they are being called and can then accept or decline.At the press event held at Facebook headquarters in Palo Alto, California, CEO Mark Zuckerberg said the feature will begin with one-on-one video chat. Skype CEO Tony Bates, whose company has been acquired by Microsoft, said Skype is considering having its paid product within the Facebook product.The social networking company also introduced "Ad Hoc Group Chat", which enables users to start a group chat instantly without creating a group with those multiple friends at first. The new group chat feature is also available for Facebook's mobile interfaces.Facebook also introduces a sidebar that lists the people a user messages most, enabling users to chat with close friends, professional contacts or co-workers without being interrupted. The sidebar can adjust with the size of users' browser window and automatically appears when the window is wide enough.In the opening remarks at the press event, Zuckerberg confirmed that Facebook had surpassed 750 million monthly active users. He said the company had declined to announce the number earlier because it has become focused on other metrics, like how actively users are sharing information.The CEO said users are now sharing 4 billion "things" on Facebook every day, which grew at an exponential rate compared to the amount users share a year ago."Social networking is at an inflection point," said Zuckerberg, adding that he believes social networking now is more about the strength of connecting people rather than the quantity of users or ubiquity of the technology.Zuckerberg presented a graph to show how Facebook product launches have helped drive the growth of sharing. He said the social network expects more innovations from other companies involved in everything from music to communication to help drive the growth.

MOSCOW, Aug. 24 (Xinhua) -- A Russian Progress cargo ship crashed into Siberia after failing to reach the right orbit Wednesday. The crash marked the second failure in space launch in less than a week and the third in this year, prompting local media to suspect a major reshuffle in Russia's space industry.UNPRECEDENTED FAILUREThe Progress M-12M unmanned freighter was launched to the International Space Station from Baikonur space center in Kazakhstan on Wednesday. It was expected to reach a near-Earth orbit in about nine minutes after launch.However, after the 325th second of the flight, which was just a few seconds before the vessel should reach the orbit, the ground control center lost it.Russian space agency Roscosmos confirmed later that the cargo ship failed to reach the orbit and fell down. Russian Progress M-12M cargo ship is launched to the International Space Station from Baikonur space center in Kazakhstan on Wednesday, Aug. 24, 2011. It has failed to reach the orbit, the Interfax news agency reported.The malfunction of the Soyuz-U rocket's engine was generally believed to be the cause of the accident, according to local media.A source in the space industry said the spaceship had sent a breakdown report while separating from the Soyuz rocket.Some unconfirmed reports said the fuel tank of the booster leaked and the engine was automatically turned off to avoid explosion.The wreckage of the Progress cargo ship has already fallen in southern Siberia's Altai Republic, where a big explosion was heard by locals, reported RIA Novosti news agency.A state investigation committee has been formed to look into the first ever loss of a Progress freighter.CONCERNS OVER FUTUREThe unprecedented accident raised concerns over the reserves of the six crew members on board the ISS.The ship was loaded with over 3.5 tons of supplies for the ISS, including scientific materials, oxygen, water and food.According to Russia's Ground Control, the loss of these supplies will not affect the ISS crew as there are enough stocks of necessities for two to three months.Also, there is no need for premature return of the crew, said Vladimir Solovyov, a space official.However, it still casts some shadow over the ISS program that relies on Russia exclusively following the retirement of U.S. shuttles.A source from the Russian space industry said the scheduled launches of the Soyuz rockets are likely to be suspended until the reasons of the accident are established.This means that current crew members of the ISS would likely stay longer in the space than planned, as the new members might not be able to replace them on schedule, the source explained. Solovyov said the launch of the next Progress is scheduled for October 28.So far, Roscosmos has refrained from comments regarding the possible halt in manned missions aboard Soyuz carrier rockets."Comments will follow. Now it is necessary to determine the causes of today's abortive launch of a Soyuz-u carrier rocket with the Progress M-2M transport ship," Roscosmos told Itar-Tass news agency.Local media raised the prospect of a major reshuffle in Russia' s space industry as the country has lost a total of six space vehicles over the past nine months.On Aug. 18, a carrier rocket Proton-M failed to deliver to the orbit communication satellite Express-AM4. Earlier in February, Russia had lost a satellite named Geo-IK2.In December 2010, a booster malfunction resulted in the loss of three satellites in the global positioning and navigation system GLONASS.

NAIROBI, Aug. 18 (Xinhua) -- The World Health Organization (WHO) on Thursday decried increased number of confirmed cholera cases in the Somalian capital Mogadishu, and growing reports of acute watery diarrhea in Kismayo and other crowded urban centers, saying an urgent multi-sector response to contain the spread of this highly contagious disease is being mounted.The UN health agency said has confirmed cholera in Banadir, Bay, Mudug and Lower Shabelle regions and the number of acute watery diarrhea cases has increased dramatically in the last few months.WHO Representative for Somalia Marthe Everard said combination of poor sanitation conditions, a shortage of safe water, overcrowding and high malnutrition rates, creates the perfect combination for infectious diseases, such as cholera and pneumonia, to spread and increase the number of deaths. "For the last few years, a network of health workers reporting to the early warning system is in place, however they report through a health facility or mobile clinic. Yet the large numbers of displaced people in Mogadishu are making it more difficult to record the various diseases," Everard said in a statement issued in Nairobi. "We urgently need more mobile clinics that will provide basic health care services to the many displaced and who will strengthen the reporting on new outbreaks. This is critical to our response and our ability to save lives."According to WHO, about seventy-five percent of all cases of acute watery diarrhea are children under the age of five.Since January this year, 4,272 cases of acute watery diarrhea/ cholera have been reported in Banadir Hospital in Mogadishu alone. However, at this stage most of the cholera cases in the various regions are contained and under control. "Our major concern is to monitor and detect new disease outbreaks in the many informal settlements set up by internally displaced people in and around Mogadishu", says Everard.Although cholera is endemic in the country, the last major cholera outbreak was in 2007 with an estimated 67,000 cases.WHO said recent efforts to cholrinate the water supply of Mogadishu, along with efforts to improve hygiene and sanitation have prevented a serious outbreak but with the large influx of some 100,000 people alone this year into Mogadishu, bringing the total number of IDPs in the capital to an estimated 470,000, many are living in overcrowded settlements, there is an acute shortage of safe water and adequate sanitation. "There is no need for a child to die of diarrhea, yet this is tragic reality for a Somali child, who is acutely malnourished. It is a lethal combination." said Rozanne Chorlton, UNICEF Representative for Somalia. "These types of diseases can be prevented and treated quickly, but to save children's lives we need to make sure safe water, sanitation and hygiene along with early access to primary health care, are an integral part of our emergency response."WHO said partners in the health and water and sanitation sectors are currently preparing for a potential 100,000 cholera cases including 80,000 moderate cases and 20,000 severe cases.Emergency diarrheal disease kits made up of medical supplies such as syringes, infusions, and oral rehydration fluids (ORS), already prepositioned by UNICEF and WHO have been sent to 13 hospitals.An additional 200 diarrheal disease kits, each able to treat 100 severe cases and 400 moderate cases are being procured and should be in Southern Somalia in the next few weeks, it said.In addition, WHO said, the case management of severe dehydration with and without malnutrition is being strengthened and focus is now on mobilizing a network of already trained community health promoters to move from door to door with health hygiene education messages. "Health posts will be stocked with essential medicines and ORS to identify and promptly treat patients. Many of Southern Somalia' s rural areas and urban centers rely on shallow wells, which unless protected or treated with chlorine can serve as the perfect breeding ground for water borne diseases," it said.To respond to this threat and prevent a major outbreak, the UN health agency said partners in the water, sanitation and hygiene sector are scaling up their actions to target 1.5 million people across high risk areas of the south.Supplies of chlorine and essential items for hygiene and household treatment and storage of water are being distributed.Already 217 water sources are being chlorinated and 58 water point outlets benefitting 483,200 residents and internally displaced people in Mogadishu.In addition, household hygiene supplies, including water purification tablets, soap and buckets, enough for 48,000 families, are being distributed at existing feeding centers for malnourished children.Campaigns to educate families about the treatment of drinking water, safe disposal of waste and encourage hand washing with soap will also be scaled up in high risk communities.As part of the updated 2011 UN Consolidated Appeal for Somalia, an estimated 80 million U.S. dollars is needed for the health sector and 78 million dollars is required for the water, sanitation and hygiene sector.So far, each sector has respectively raised 30 percent and 37 percent of the required money.

BEIJING, Sept. 23 (Xinhua) -- A defunct U.S. satellite is expected to crash down to Earth Friday, with nobody knowing where or when exactly it will hit. This was avoidable, a Chinese expert said Thursday.Pang Zhihao, a researcher from the Chinese Research Institute of Space Technology, told Xinhua that the crash could have been avoided had the satellite been put into a higher orbit, or manipulated to drop in the South Pacific when it had abundant fuel. It would pose no threat to Earth if these measures had been taken.NASA's tumbling, 5,900 kg Upper Atmosphere Research Satellite, or UARS, is the first of such man-made space vehicles that have been launched into outer space according to the agency's Mission to Planet Earth. The mission was launched in the 1990s.The mission is designed to provide data for better understanding Earth's upper atmosphere and the effects of natural and human interactions on the atmosphere.The satellite was deactivated in 2005 as it ran out of fuel and was left orbiting Earth like a big piece of space junk.There are other cases of defunct satellites. The European Space Agency said earlier its observation satellite ERS-2 has run out of fuel and is deorbiting. It would therefore also crash sooner or later.Pang said all countries which are operating space vehicles should take care of their own spacecrafts so that they won't pose any danger.The expert also said that the public need not worry too much.Pang said most spacecrafts will be incinerated upon re-entering Earth's atmosphere, and the debris will mostly likely fall into the ocean or hit an uninhabited area. In addition, a debris tracker is able to give a comparatively accurate prediction where the craft will fall about two hours before it hits Earth, giving residents, if there are any, time to evacuate.He added that there are several ways to minimize the threat of decommissioned spacecrafts, like putting them into higher orbits and crashing them into designated waters.Scientific progress would possibly bring about more ways of dealing with tumbling satellites. Scientists have already been trying to build spacecrafts with degradable materials so that they can self-destruct when re-entering Earth's atmosphere.

来源：资阳报