梅州怀孕几个月内可以流产(梅州尿道炎怎么治啊) (今日更新中)

JERUSALEM, Oct. 24 (Xinhua) -- A recent study carried out by Israeli researchers showed that the experience of motherhood is caused by alterations in the brain functions that help mothers locate and communicate with their offspring, especially if they are in distress.Researchers at the Hebrew University of Jerusalem said the results provide insight into how neural changes in response to odors and sounds help maternal behaviors develop in mothers."We know that distinct brain changes are linked with motherhood, " Dr. Adi Mizrahi, who conducted the research, said, "but the impact of these changes on sensory processing and the emergence of maternal behaviors are largely unknown."Mizrahi and his colleagues examined whether the primary auditory cortex -- a region in the brain that is involved in the recognition of sounds -- might serve to process the responses to their offspring's specific smell and voice.The research proved that the olfactory and auditory senses of female mice with their pups were triggered immediately after they gave birth, with especially strong responses to cries of distress."These processes help to explain how changes in the cortex in the brain facilitate efficient detection of pups," Mizrahi said.

BEIJING, Jan. 6 (Xinhua) -- Beijing will offer residents 20,000 rental bikes this year to ease the city's notorious traffic jams, according to authorities with the Beijing Municipal Commission of Development and Reform.Five hundred rental kiosks will be set up around the city to offer residents over 20,000 rental bikes, the commission said.Beijing has also proposed creating new bike lanes in some areas, including main streets, historical and cultural conservation areas and some major business districts, from 2011 to 2015, according to the commission.The capital city currently has about 5 million vehicles on its roads, leading to serious traffic congestion that frustrates the city's residents on a daily basis."A lack of bike lanes is the reason why I refuse to ride a bike. Bikes and vehicles are using the same lanes, and that frightens me and makes me feel unsafe," said Beijing resident Song Tao.People often park cars on the city's existing bike lanes, pushing cyclists onto the vehicles' lanes, said Song.To ease traffic congestion, Beijing has made various efforts to encourage people to opt for modes of public transportation.On Dec. 31, Beijing opened three new subway lines, bringing the number of subway lines in Beijing to 15, with a total length of 372 kilometers, said Beijing Metro Spokesman Jia Peng.Beijing will open four more subway lines in 2012, according to information released at a rail transit construction mobilization conference.Amid other measures to ease traffic in 2011, city authorities decided to allow only 240,000 vehicles to be registered annually, slashing the new car registrations by two-thirds from the 2010 level.Meanwhile, vehicles are banned from roads one day each week according to license plate numbers.

WASHINGTON, Oct. 3 (Xinhua) -- The Rockefeller University confirmed Monday its Canadian-born cell biologist Ralph Steinman died three days before being awarded the Nobel Prize on Monday as the Nobel committee was unaware of his death at the time."Steinman passed away on September 30," the New York university said in a statement."He was diagnosed with pancreatic cancer four years ago, and his life was extended using a dendritic-cell based immunotherapy of his own design."The Nobel committee was unaware of Steinman's death when announcing this year's winners and it was unclear whether the prize would be rescinded because Nobel statutes don't allow posthumous award."The Rockefeller University is delighted that the Nobel Foundation has recognized Ralph Steinman for his seminal discoveries concerning the body's immune responses," says Rockefeller University President Marc Tessier-Lavigne."But the news is bittersweet, as we also learned this morning from Ralph's family that he passed a few days ago after a long battle with cancer. Our thoughts are with Ralph's wife, children and family.""We are all so touched that our father's many years of hard work are being recognized with a Nobel Prize," says Steinman's daughter Alexis. "He devoted his life to his work and his family, and he would be truly honored.""Ralph's research has laid the foundation for numerous discoveries in the critically important field of immunology, and it has led to innovative new approaches in how we treat cancer, infectious diseases and disorders of the immune system," Tessier-Lavigne says.Steinman, who discovered the immune system's sentinel dendritic cells, is this year's recipient of the Nobel Prize in Physiology or Medicine. He shares half the prize with Bruce Beutler and Jules Hoffmann.

BEIJING, Jan. 05 (Xinhuanet) -- China's satellite television channels have aired fewer entertainment programs this year as broadcasting watchdog's curbs on "excessive entertainment" took effect.The State Administration of Radio, Film and Television has cut two-thirds of "racy" entertainment programs on China's 34 satellite channels since the campaign began, the spokesperson for the administration said on Tuesday.Since the regulation took effect on Jan 1, the total number of entertainment programs scheduled for prime-time -7:30 pm to 10 pm - broadcast a week dropped to 38 from 126 at the end of last year, according to a statement from the administration.Under the regulation, announced in October, each satellite channel can broadcast no more than two entertainment programs a week and the maximum length of the program may not exceed 90 minutes.The targeted programs, including dating shows, reality talent shows and emotional stories on the administration's list, were deemed "excessive entertainment" and showing "less taste"."Satellite channels should design programs with innovative content, promoting traditional virtues and socialist core values in their new entertainment programs," the authority said.The administration considers the move crucial to improving cultural content for the public by offering high-level programs.Meanwhile, the number of news programs on the satellite channels has grown to 193 a day, 33 percent more than in 2011.Currently, news programming on each satellite channel has surpassed two hours, and each channel has at least two 30-minute news programs during prime time.But popular dating shows such as If You Are the One, produced by Jiangsu Satellite TV, and reality shows such as China's Got Talent, aired by Shanghai-based Dragon TV, will remain on during prime time in the weekend.Li Hao, spokesman for Hunan Satellite TV, a broadcaster famous for its entertainment programs, told China Daily the regulation will improve the quality of entertainment programs."We have been exploring how to make entertainment shows more meaningful and valuable," he said, adding that the channel has shortened the length of its two entertainment programs from 110 to 90 minutes."We will supervise programs more strictly, and pay close attention to things such as the clothing and comments of hosts and guests," he added.Cheng Manli, a media professor at Peking University, welcomed the new regulation to limit "less tasteful" programs involving violence and money worship."After all, unhealthy programs may hurt young people who are not able to distinguish right from wrong, which also worries their parents," she said.However, Yu Guoming, a professor at the School of Journalism at Renmin University of China, did not think the regulation was the way to improve cultural development."Whether the entertainment program is good or not should be decided by viewers' reaction, instead of an administration's evaluation," he said. "Residents are under pressure and need to watch shows to relax in our society."Yu also said that a good entertainment program should respect residents' taste and give them more viewing choices, or else it could lead to rigid restrictions.Ma Yuqiang, who runs an online clothing retail company, said the new rule will not affect his daily life, because he can watch the entertainment programs that were taken off prime time on the Internet."I think the regulation will drive most young people to the Internet," Ma, 26, said.

来源：资阳报