昌吉阴道紧缩适应症(昌吉验孕棒几天之后测) (今日更新中)

BEIJING, Nov. 22 (Xinhuanet) -- Women aged 40 to 49 are not recommended for routine mammography screening for breast cancer, said the new guidelines issued by the Canadian Task Force on Preventive Health Care in media reports Tuesday.The new guidelines are purposed to direct doctors on using mammography, MRI scans, clinical breast exams and breast self-exams. In principle, they pointed out, there is no need for women to take clinical breast exams and breast self examination if there are no signals for breast cancer.Below are the main points from the guidelines which need special attention from women with reasonable doubt on the matter:Women aged 40-49 who have lower risk for cancer should not take routine mammography because of the higher risk for overdiagnosis, overtreatment and false-positives;Women aged 50 to 69 years and aged 70 to 74 years should go for routine screening every two to three years;And there should be no routine clinical breast exams by doctors and no breast self-exams to screen for breast cancer.Dr. Marcello Tonelli, Chair of the Task Force and Associate Professor at the University of Alberta, remarked: "The main effect of screening is to produce patients with breast cancer from among healthy women who would have remained free of breast disease for the rest of their lives had they not undergone screening.""The best method we have to reduce the risk of breast cancer is to stop the screening program," he added, "This could reduce the risk by one-third in the screened age group, as the level of overdiagnosis in countries with organized screening programs is about 50 percent."

SAN FRANCISCO, Dec. 29 (Xinhua) -- The United States Patent and Trademark Office on Thursday published a patent application from Apple related to face and presence detection for iOS devices, which is expected to be one of the next chapters for mobile security.According to AppleInsider, a news and rumor website focusing on Apple, the patent is entitled "low threshold face recognition" which is a low-computation solution for quickly and accurately recognizing a user on iPhone, iPad, iPod Touch and MacBook.Patently Apple, a blog focusing on Apple's latest intellectual properties, said that iOS devices would acknowledge the presence of the potential user by turning on the display and then trigger a subsequent process for recognizing the potential user's face.Currently, most face recognition systems tend to be robust ones working in various lighting conditions, orientations, scale and etc., which will require computing resources and drain battery life. There are also security-type face recognition systems working under controlled lighting conditions which could be ineffective due to factors like proximity of the user to the camera.Google's latest Android 4.0 operating system, codenamed Ice Cream Sandwich, already features face detection. But it is reported that the feature doesn't always work and can be bypassed by using a photograph of the phone's owner.Apple's solution would reduce the impact of lighting conditions and biometric distortions on an image, said AppleInsider, citing the filing. Apple said it would rely on a "high information portion" of a human face, such as eyes, mouth or the tip of a user 's nose.The "likely presence" of a human face in front of the camera would be captured through an "orange-distance filter" which would also be used to detect the potential user's skin tone and measure the distance of their face from the camera.Meanwhile, iOS devices could also be set to recognize faces of multiple users, presenting each user with a personalized configuration.According to AppleInsider, the patent application was first filed by Apple in June, 2009.Analysts said that the proposed technology could be Apple's next big innovation as it has record of redesign and give its unique appeal to products that have not caught on with the general public.

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.

BEIJING, Dec. 4 (Xinhua) -- Chinese President Hu Jintao sent a message to Venezuelan President Hugo Chavez and Chilean President Sebastian Pinera on Friday to congratulate the founding of the Community of Latin American and Caribbean States (CELAC).In his message, Hu said that the establishment of CELAC is a major milestone in regional integration and that China appreciates the positive role of Latin American and Caribbean countries in international and regional affairs.China believes that the establishment of the community will make important contributions to unity and coordination in the region as well as joint efforts to counter global challenges, Hu said.China and Latin America are geographically apart, but their peoples enjoy traditional friendship, Hu said.In the 21st century, relations between China and Latin America have seen all-round and fast development with the expansion of mutually beneficial cooperation, Hu said.China has always treated its relations with Latin America from a strategic perspective and China is willing to work with CELAC and other countries in the region to build and develop a comprehensive cooperative partnership of mutual benefit and common development through the strengthening of dialogue, communication and cooperation, said Hu.The idea of CELAC was initiated in February 2010 at a regional summit in the Mexican resort of Cancun. The new grouping represents all countries in the Americas except Canada and the United States.

BALI, Indonesia, Nov. 19 (Xinhua) -- Leaders of China, Japan and South Korea met here Saturday to exchange views on trilateral cooperation and regional and international issues of common concern.Chinese Premier Wen Jiabao, Japanese Prime Minister Yoshihiko Noda and South Korean President Lee Myung-bak were meeting on the occasion of a series of meetings for East and Southeast Asian leaders in this Indonesian resort city on Friday and Saturday.Speaking at the meeting, Wen said the cooperation between the three nations currently had good momentum, which was not only in line with the interests of the three sides but also contributed to the stability and development of the Asia and the world.Chinese Premier Wen Jiabao (L), Japanese Prime Minister Yoshihiko Noda (C) and Republic of Korea (ROK) President Lee Myung-Bak pose for photos during the Trilateral Summit Meeting for leaders of the three nations in Bali, Indonesia, Nov. 19, 2011.As the coordinator of next year's China-Japan-South Korea cooperation, China would like to further enhance high-level exchanges, policy coordination and strategic trust between the three countries, providing political impetus and promoting more advancement in trilateral cooperation, Wen said.He said next year marked the 40th anniversary of the normalization of diplomatic relations between China and Japan, and the 20th anniversary of the establishment of diplomatic relations between China and South Korea.In the meeting, Wen proposed the joint research into a free trade area between the three countries be completed this year, and negotiations start in 2012.Wen also suggested enhancing trilateral cooperation in the fields of transportation, finance and environmental protection, among many others.Also speaking at the meeting, the Japanese prime minister and the South Korean president said the cooperation between the three nations had seen remarkable achievement and its prospects were promising.The three sides should continue to deepen their exchanges and cooperation in various fields including economy and trade, finance, investment, disaster relief, culture, education and tourism, and strengthen the coordination in regional and international issues to promote common development, according to them.During the meeting, the three leaders also exchanged views on other regional and international issues of common concern.

来源：资阳报