武清男科龙济在线预约(天津龙济医院治疗男性疾病) (今日更新中)

WASHINGTON, Nov. 8 (Xinhua) -- NASA plans to add an unmanned flight test of the Orion spacecraft in early 2014 to its contract with Lockheed Martin Space Systems for the multipurpose crew vehicle's design, development, test and evaluation, the U.S. space agency announced Tuesday.This test supports the new Space Launch System (SLS) that will take astronauts farther into space than ever before, and provide the cornerstone for America's future human spaceflight efforts."President Obama and Congress have laid out an ambitious space exploration plan, and NASA is moving out quickly to implement it," NASA Associate Administrator for Communications David Weaver said in a statement. "This flight test will provide invaluable data to support the deep space exploration missions this nation is embarking upon."Orion is part of the now defunct Constellation program canceled under President Barack Obama's 2011 budget proposal. Instead Obama urged NASA to work toward sending humans to an asteroid and then on to Mars -- and NASA says it wants to go ahead with that as quickly as possible.This Exploration Flight Test, or EFT-1, will fly two orbits to a high-apogee, with a high-energy re-entry through Earth's atmosphere. Orion will make a water landing and be recovered using operations planned for future human exploration missions. The test mission will be launched from Cape Canaveral to acquire critical re-entry flight performance data and demonstrate early integration capabilities that benefit the Orion, SLS."The entry part of the test will produce data needed to develop a spacecraft capable of surviving speeds greater than 20,000 mph and safely return astronauts from beyond Earth orbit," Associate Administrator for Human Exploration and Operations William Gerstenmaier said. "This test is very important to the detailed design process in terms of the data we expect to receive."

SAN FRANCISCO, Nov. 21 (Xinhua) -- Hewlett-Packard Co. (HP) on Monday reported that its profit in the most recent quarter fell more than 90 percent with sales also declining.In the company's fourth quarter of fiscal 2011 ended Oct. 31, the company posted net earnings of 239 million U.S. dollars, compared with 2.54 billion dollars in the same period a year earlier.HP's net revenue for the quarter reached 32.1 billion dollars, down 3 percent year-on-year.Excluding one-time items, HP earned 1.17 dollars per share, which topped estimates of analysts.According to Thomson Reuters, analysts had expected earnings of 1.13 dollars per share on revenue of 32.05 billion dollars.It was the first earnings report since Meg Whitman took over as chief executive officer (CEO) of the information technology giant on Sept. 22, replacing Leo Apotheker."HP has a great opportunity to build on our strong hardware, software, and services franchises with leading market positions, customer relationships, and intellectual property," Whitman said in a statement after the earnings announcement."We need to get back to the business fundamentals in fiscal 2012, including making prudent investments in the business and driving more consistent execution," she added.

BEIJING, Dec. 11 (Xinhua) -- A draft regulation on school bus safety management was made public Sunday by the Legislative Affairs Office of the State Council, with the public invited to submit comments on it.The draft stipulates that local governments above the county level should take "overall responsibility" in school bus safety, and authorities of education, public security, transportation and product quality supervision should also properly perform their respective duties.The government will establish and improve a system of mandatory technical standards for the quality of vehicles used as school buses, the draft stated. Primary school students queue up to get on the school bus to go home after school in Deqing County, east China's Zhejiang Province, Nov. 21, 2011. Local government of Deqing County has invested 20 million yuan (3.14 million U.S. dollars) to order 79 school buses, which are specially designed for children with smaller seats and seat belts as well as bright yellow color to have better warning function. Among the 79 buses, 14 ones have truck-style front ends, and this appearance like a long nose can effectively reduce the impact force and better protect children's safety. Drivers of such kind of school buses are required not to exceed 60 kilometers per hour. Nearly 6,000 children from 25 primary schools have benefited from the operation of this kind of school bus in Deqing County.China issued a set of technical standards for school buses for primary school students last year, and the drafting of another standard for buses for the kindergartners is also underway.According to the draft, the government will adopt a license system for school bus operation.Vehicles that are up to school bus standards and with a unified appearance will be first in line to obtain approval from education authorities, and the draft also requires buses to register at the traffic administrative agencies before they can be used as school buses.Instead of compulsory annual safety checks, the draft would require school bus owners to renew their safety qualifications every six months.Drivers should also check the safety condition of the buses before each commute, the draft said.The draft asks schools and the school bus service providers to intensify safety management and maintenance and assign special staff on buses to look after students on board.

WASHINGTON, Oct. 13 (Xinhua) -- In a trial that included about 35,000 men, those who were randomized to receive daily supplementation with vitamin E had a significantly increased risk of prostate cancer, according to a study published this week in the Journal of the American Medical Association.The study followed more than 35,533 men 50 or older at 427 sites in the United States, Canada and Puerto Rico. The men were divided into four groups who took daily doses of 400 international units of Vitamin E and 200 micrograms of selenium; Vitamin E and a placebo that looked like selenium; selenium and a placebo that looked like Vitamin E; or two placebos. The recommended daily intake of Vitamin E is about 22.4 international units.The researchers from the Cleveland Clinic found that the rate of prostate cancer detection was greater in all treatment groups when compared with placebo but was statistically significant only in the vitamin E alone group -- a 17 percent increased rate of prostate cancer detection. The difference in rates of prostate cancer between vitamin E and placebo became apparent during the participants' third year in the trial. The elevated risk estimate for vitamin E was consistent across both low- and high-grade disease."The observed 17 percent increase in prostate cancer incidence demonstrates the potential for seemingly innocuous yet biologically active substances such as vitamins to cause harm. The lack of benefit from dietary supplementation with vitamin E or other agents with respect to preventing common health conditions and cancers or improving overall survival, and their potential harm, underscore the need for consumers to be skeptical of health claims for unregulated over-the-counter products in the absence of strong evidence of benefit demonstrated in clinical trials," the researchers said.

CHANGCHUN, Nov. 13 (Xinhua) -- An infrared camera set up by the World Wildlife Fund (WWF) and forestry authorities in northeast China's Jilin province has captured images of a wild Siberian tiger in the Wanda Mountains.Zhu Jiang, head of the WWF Northeast China Program Office, said Saturday that the photos, taken earlier this month, are the first images of a wild Siberian tiger taken in the mountainous area.He said the evidence consolidates the mountains' role as an important habitat for the endangered species, and reinforces the need for local authorities to tighten protection measures, especially clearing animal traps and improving animal rescue efforts.The agency estimates that there are fewer than 20 wild Siberian tigers remaining in China. They live in mountains in the northeastern Heilongjiang and Jilin provinces.Zhu said animal traps still pose a major threat to the safety of wild Siberian tigers and their prey.A wild Siberian tiger was found dead with a trap around its neck in the city of Mishan, Heilongjiang, in October.A WWF survey found an average of 1.6 traps for every 10 km of distance covered in the Siberian tiger nature reserves in Heilongjiang and Jilin last winter."The WWF hopes to cooperate with local governments to protect Siberian tigers and restore their habitats," Zhu told Xinhua. "We aim to help double the population of wild Siberian tigers in China by 2022, the next Year of the Tiger," he said.

来源：资阳报