濮阳东方医院男科技术权威(濮阳东方医院做人流评价高) (今日更新中)

BEIJING, July 26 (Xinhuanet) -- Some forms of medical research involving animals containing human material should be more tightly regulated, a report warned.The warning was issued on Friday by an expert working group from the Academy of Medical Sciences in Britain.The report suggested the ban of the use of animal cells that can produce human sperm or egg cells. "We don't want scientists to cause problems for the future by overstepping the mark of what is publicly acceptable," said Professor Robin Lovell-Badge, a member of the expert working group.The controversy partly originated from a medical research in Britain. Three years ago, the researchers produced human embryos with the nucleus hollowed cow eggs, according to the Associated Press."This is a complex research area and there should be an ongoing dialogue between scientists, regulators and the wider public to address emerging issues." said Martin Bobrow, a professor of medical genetics at the University of Cambridge.

WELLINGTON, July 26 (Xinhua) -- Children born early are less likely to develop serious behavioral problems than previously thought because previous studies may have relied too much on the opinions of "sensitive" parents, according to a controversial New Zealand research.The study by the Child Development Research Group at the University of Canterbury looked at the emotional and behavioral adjustment of children born very preterm (VPT).It showed that by age 6 children born very preterm (less than 33 weeks) were at an increased risk of emotional and attentional problems when compared with their full term peers, said a statement from the university.However, the findings suggested the risks may be lower than previous studies had suggested, because previous studies primarily relied on parents to provide information on their children's conditions, said lead author Samudragupta Bora."While parents are an important source of information about their child, it is also important to gather information from other significant people in the child's life such as their classroom teacher," said Bora.Bora and other members of the research team, found that parents reported higher rates of emotional and attention problems in their children than teachers did."Having a baby born prematurely is an extremely stressful experience for parents. During their baby's stay in the neonatal unit most parents will have been alerted to the possibility of their child developing problems such as behavioral difficulties in the future due to being born too early. Therefore, very understandably, many parents of these children are very sensitive to the possibility of developmental problems," he said."The use of multiple informants - parents, teachers and clinical observation - to assess VPT children's well-being is important to minimize the effects of report source bias and the over or under-identification of adjustment problems in children born VPT," said Bora."This is controversial because it shows that reliance on parents or teachers alone can lead to data validity issues."Although children born VPT were at higher risk of showing emotional and attentional problems, the risks of more severe problems were relatively modest, said Bora.The findings have been published the Journal of Paediatrics and Child Health.

LOS ANGELES, June 10 (Xinhua) -- The Aquarius/SAC-D observatory, NASA's first ever satellite to study the saltiness of Earth's oceans, is in excellent health after its launch early Friday, initial telemetry reports showed.The observatory rocketed into space from Vandenberg Air Force Base in California atop a United Launch Alliance Delta II rocket at 7:20:13 a.m. PDT (10:20:13 a.m. EDT).Less than 57 minutes later, the observatory separated from the rocket's second stage and began activation procedures, establishing communications with ground controllers and unfurling its solar arrays, NASA's Jet Propulsion Laboratory (JPL) said.During the next 25 days, the Aquarius/SAC-D service platform will be tested and maneuvered into its final operational, near-polar orbit 408 miles (657 kilometers) above Earth. Science operations will begin after the observatory's instruments are checked out. This commissioning phase may last up to 65 days, JPL said.Aquarius will map the global open ocean once every seven days for at least three years with a resolution of 93 miles (150 kilometers). The maps will show how ocean surface salinity changes each month, season and year. Scientists expect to release preliminary salinity maps later this year."Aquarius is a critical component of our Earth sciences work, and part of the next generation of space-based instruments that will take our knowledge of our home planet to new heights," said NASA Deputy Administrator Lori Garver. "The innovative scientists and engineers who contributed to this mission are part of the talented team that will help America win the future and make a positive impact across the globe."Aquarius will measure salinity by sensing thermal microwave emissions from the water's surface with three microwave instruments called radiometers. When other environmental factors are equal, these emissions indicate the saltiness of surface water. A microwave radar scatterometer instrument will measure ocean waves that affect the precision of the salinity measurement.Because salinity levels in the open ocean vary by only about five parts per thousand, Aquarius will be able to detect changes as small as approximately two parts per 10,000, equivalent to about one-eighth of a teaspoon of salt in a gallon of water."Data from this mission will advance our understanding of the ocean and prediction of the global water cycle," said Michael Freilich, director of NASA's Earth Science Division in the Science Mission Directorate at agency headquarters in Washington. "This mission demonstrates the power of international collaboration and accurate spaceborne measurements for science and societal benefit. This would not be possible without the sustained cooperation of NASA, CONAE and our other partners."The Aquarius/SAC-D (Satellite de Aplicaciones Cientificas) observatory is a collaboration between NASA and Argentina's space agency, Comision Nacional de Actividades Espaciales (CONAE).Aquarius was built by NASA's JPL and the Goddard Space Flight Center in Greenbelt, Maryland. NASA's Launch Services Program at the Kennedy Space Center in Florida manages the launch.JPL will manage Aquarius through its commissioning phase and archive mission data. Goddard will manage Aquarius mission operations and process science data. CONAE is providing the SAC-D spacecraft, optical camera, thermal camera with Canada, microwave radiometer, sensors from various Argentine institutions and the mission operations center. France and Italy also are contributing instruments.

CHANGSHA, July 17 (Xinhua) -- Chinese State Councilor Liu Yandong has called for more communications in language and culture among the people in China and foreign countries.Liu made the remarks during a meeting with the contestants of the 10th "Chinese Bridge" competition, an international Chinese proficiency competition for foreign college students, which opened Saturday in Changsha, capital of central Hunan Province.The "Chinese Bridge" competition has attracted over 100,000 college students from more than 70 countries over the past ten years, and contestants have improved their Chinese language, experienced the Chinese culture and established deep friendship with others during the competition, Liu said.She said that language is a tool for cultural communications, and linguistic learning and exchanges can promote the mankind's civilization and progress in a broader reach."The Chinese government always encourages the public, especially the youths, to learn foreign languages, and through the learning, they are enlightened on the diversified cultures around the world," she said."This also helps promote the good-will exchanges and cooperation among the Chinese and foreign peoples," she added.Liu said the Chinese government is also making efforts to meet the needs of foreign people to learn the Chinese language. She called on foreign young students to improve their Chinese proficiency and to use the Chinese language as a bridge to fell a real China in a comprehensive way.She expressed her hope that the foreign students will spread the good will and sincerity of the Chinese people to other parts of the world, in order to promote the joint efforts for the peace and prosperity of the world.

SHENYANG, Aug. 16 (Xinhua) -- Two more cutaneous anthrax infections were reported in northeast Liaoning Province, bringing the total number of people who were hospitalized for the disease to 32, health authorities said Tuesday.The two cases were found Monday in Donggang City, more than 100 km away from the city where the disease was first reported, the Liaoning Provincial Health Department said in a statement.Health experts noted that all the cases originated from the the same source.As of 8 p.m. Monday, four cases have been confirmed while 28 others were still being investigated, according to the health department.An initial investigation by local health authorities showed that the patients contracted the disease after direct contact with diseased cattle.The government of Liaoning has since killed or disinfected more than 400 heads of cattle in the province and carried out a survey among over 20,000 people.Cutaneous anthrax is an infection of the skin caused by direct contact with infected animals or animal products. It is rarely fatal if treated.

来源：资阳报