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The avian flu virus H5N1 infects the respiratory tract and spreads to other organs in the human body. Other highlights from Nature China include Endometrial cancer, Turn pollution into power, Colon cancer and heart disease, Climate change and dust storms and Helical nanofibres

Read more of the article entitled 'Avian flu: Beyond respiration'

Summaries of other newsworthy papers include Materials: Domains of influence and Fighting off an immune attack

Read more of the article entitled 'Using aspirin to study bacterial infection'

In this week's Nature, Yasunobu Uchiyama and colleagues from the Institute of Space and Astronautical Science, Japan report the discovery of a brightening and decay in the X-ray emitting shells around a supernova.

Read more of the article entitled 'Seeing cosmic rays'

Summaries of newsworthy papers include Anaesthesia without paralysis, Cancer: Stem cells and metastasis, High-temperature superconductivity: An organic perspective, Physics: A single artificial-atom laser and Supercurrents in a Bose-Einstein condensate

Read more of the article entitled 'Russian science: Sputnik and beyond'

Nature reports on how the National Science Foundation (NSF) is looking into how researchers account for time spent on federally funded projects. Auditors have found that the records kept are often not accurate, undermining the ability of the NSF to ensure that its grants are spent appropriately.

Read more of the article entitled 'Keeping track of scientists’ time '