New tool to evaluate next-generation tobacco and nicotine products

A new smoking-specific survey has been developed that is much better than a currently available general health questionnaire at discriminating between different types of ‘otherwise healthy’ smokers. This test could be useful in determining the potential health impact of next generation tobacco and nicotine products, like e-cigarettes, on smokers who switch and in understanding the potential short- and longer-term impact of health-related interventions, such as reducing or quitting smoking cigarettes. —> Read More

New Zealand stoats provide an ark for genetic diversity

British stoats suffered a dramatic loss in genetic diversity in the 20th century but extinct British genes were preserved in the stoat population of New Zealand, a new study has found.The research reveals that stoats, which were introduced to New Zealand, have greater genetic diversity there, than in their native Britain. The results are unusual because introducing a species to a new area is usually associated with a loss in its genetic diversity. —> Read More

China’s satellite navigation system to expand coverage globally by 2020

Beijing (XNA) Apr 27, 2015

The Beidou satellite navigation system will be fully operational worldwide by 2020, said Li Jian, deputy director of the Civil Aviation Administration of China (CAAC) on Thursday.

Li was speaking at an international forum on aviation security in Beijing.

The system has been successfully tested in the general aviation sector, which includes all civil aviation operations other than sch —> Read More

SpaceX Picks Up Launch Pace; Sets April 27 Commercial Launch and May 5 Crew Dragon Pad Abort Test

SpaceX Dragon V2 pad abort test flight vehicle. Credit: SpaceX

SpaceX Dragon V2 test flight vehicle set for May 5, 2015 pad abort test. Credit: SpaceX

As promised, SpaceX is picking up its launch pace in 2015 with a pair of liftoffs from the Florida space coast slated for the next week and a half. They follow closely on the heels of a quartet of successful blastoffs from Cape Canaveral, already accomplished since January.

If all goes well, a commercial satellite launch and a human spaceflight related pad abort test launch for NASA are scheduled for (…)
Read the rest of SpaceX Picks Up Launch Pace; Sets April 27 Commercial Launch and May 5 Crew Dragon Pad Abort Test (729 words)

© Ken Kremer for Universe Today, 2015. |
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