梅州处女膜修补会流血(梅州急性盆腔炎的预防及治疗) (今日更新中)

LOS ANGELES, May 15 (Xinhua) -- Using a simple, minimally- invasive technique to analyze cells from the interior of the nose, U.S. researchers have detected lung cancer in its earliest stage.For the study, the researchers at the Boston University Medical Center collected nasal epithelial cells from thirty three smokers who were undergoing medically-indicated bronchoscopies for suspicion of lung cancer, according to the American Association for the Advancement of Science (AAAS) on Sunday.Of these patients, 11 were found to have benign disease and 22 had lung cancer. Brushings were taken from the right or left nostril and profiled on microarrays, a process that allows researchers to study gene expression changes.The researchers identified 170 genes that were differentially expressed between patients with and without lung cancer. They also found that genes linked to colon cancer and adenocarcinoma, as well as genes that trigger cell division and blood vessel growth, were expressed more heavily in patients with cancer. Genes involved in tumor suppression were also expressed at lower levels in these patients.Earlier studies have used gene expression differences in the bronchial airways to identify lung cancer in its early stages. The researchers relied on those results to design the current study."In this study we used the same principle as we used in our earlier studies of bronchial tissue, only this time, those methods were used to study nasal cells," said study author Christina Anderlind, MD, Instructor of Medicine. "Our hypothesis was that the upper airway epithelium of smokers with lung cancer displays a cancer-specific gene expression pattern, and that this airway nasal gene expression signature reflects the changes that occur in lung tissue."

SHANGHAI, Feb. 19 (Xinhua) -- Shanghai and several other Chinese cities have moved to restrict home purchases in a bid to deflate bubbles in the real estate market.The rules, which were revealed by Shanghai's Housing Guarantee and Administration Bureau on Saturday, prohibits new home purchases from locally-registered families who have owned two or more homes and non-local registered families who have owned at least one home.Additionally, non-Shanghai registered families who have no documents certifying they have paid for social security or income tax in the city for one year are banned from buying property.Sales of commercial homes fell 42.4 percent year on year in Shanghai in 2010 as earlier measures to curb the speculative demand in the real estate market took effect.Despite the fall in sales volume, the average price of new commercial homes rose by 7.6 percent to 20,995 yuan (3,200 U.S. dollars) per square meter last year.On the same day, authorities in the eastern city of Nanjing and the northeastern city of Harbin rolled out similar purchase restrictions.On Wednesday, the Beijing municipal government unveiled even tougher measures to prohibit home purchases from non-local registered families who have no proof of social security or income tax payments in the Chinese capital for five straight years.The purchase limits came after the State Council, China's Cabinet, ordered late last month that cities where home prices are skyrocketing must implement strict measures to restrict home purchases over a period of time.The State Council also said that local governments will be responsible for the stable and healthy growth of property markets and are required to publicize, before the end of March, the annual "controlled" price targets for new homes.China has implemented a series of measures since last year, which includes higher down payment and lending rates, and bans on mortgage loans for third homes, to rein in the rapid rise in housing prices.Soaring prices have become a major concern for urban Chinese residents as more homes turn unaffordable. In fact, home prices in some major cities such as Beijing have more than doubled over the past two years.

SINGAPORE, April 21 (Xinhua) -- Singapore's first locally-built satellite has been officially launched from a space center in India after a four-year delay, Singapore media reported on Thursday.The 105 kg fridge-size X-Sat was one of three riding on Isro's Polar Satellite Launch Vehicle (PSLV-C16) from the Satish Dhawan Space Center in India on Wednesday. It will be used to take photographs to measure soil erosion and environmental changes on earth, local daily Straits Times said.The launch at 12:42 p.m. on Wednesday was the 18th successful lift-off since the maiden flight of PSLV in 1994.The satellite was designed and built by Singapore's Nanyang Technological University and Singapore's defense research body DSO National Laboratories.Now in orbit, the satellite is establishing communication contact with the ground control in Nanyang Technological University, a process that is likely to take up to a week.The launch capped more than nine years of hard work by scientists and engineers. It also makes Singapore one of the first countries in Southeast Asia to have its own satellite in space. Previous satellite launched by Singapore involved construction efforts by foreign companies.

BEIJING, Feb. 8 (Xinhua) -- China's aviation authorities announced on Tuesday that more passengers traveled by air during the Spring Festival holidays, with Chinese airlines handling some 5.07 million passengers during the period.The number of passengers on flights during the Chinese Lunar New Year holidays, which ended Tuesday, was up 6 percent from the same period last year, according to the Civil Aviation Administration of China (CAAC).On average, 72 percent of the seats on flights across the country were loaded during the holiday travel season, up 2 percentage points from the same period last year, according to the CAAC.To prepare for the holiday travel surge, the CAAC arranged 38,992 flights during the holidays, including eight chartered flights to Egypt to fly home 1,796 Chinese travelers stranded amid massive protests in the African country.

JERUSALEM, May 2 (Xinhua) -- Traditional farming may have found an ally on the Internet, via an Israeli "cloud-based" software system that enables farmers to get professional information and tips from colleagues worldwide.And IBM is interested in what they have to say.Agriculture Knowledge On-Line (AKOL) says its Internet-based system can aid global agriculture by utilizing the collective knowledge of kibbutzim (communal farms in Israel) and other agricultural experts, to offer small farmers personalized solutions to improve dairy output and crop production, and better prevent droughts.Owned by Kibbutz Bror Hayil in southern Israel, the software house has recently signed a cooperation and development agreement with IBM to manage access and technology issues."What we do here is like a bank of information and IBM provides the special tools for the end users," AKOL's CEO Roni Shani told Xinhua, "and you can do what we call 'agricultural market.'""For example, if someone in Australia needs advice on how to grow their crops better, they can just ask our advice or search through our database to find the best product for the country they 're growing the crops in," Shani said."Let's say someone in India, a small farmer, has a problem with their crop or chickens," Shani explained, noting that "it's usually very expensive and time consuming to get someone to come and check what is wrong."But, for a monthly fee, a basic subscription service enables the end user to access the software database, which allows "the farmer to just look at the pictures and pick the one that will explain what the disease or problem is and offer a solution, and if it is available in their country."AKOL claims about 1,000 customers over the globe."We just started developing it for use outside of the kibbutz with IBM's help," Shani said, "and we are developing it also in other parts of the world, like China. Right now we're cooperating with the Chinese government to help milk producers get the most out of their milking systems."Israel is one of the leading countries in milk production, with each cow yielding around 12,000 liters of milk a year on average. Two Chinese provinces plan to use AKOL's milking control system, in order to better manage their herds and equipment and increase milk production."And this is just the beginning," Shani explained, "because we are also working with other developing countries. This software will help millions of small farmers in rural or impoverished areas, that will be able to get advice and benefit from other farmers' experience on the spot and at a very affordable rate."

来源：资阳报