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""Die Viren scheinen genauso häufig zu sein wie die SAR1-Bakterien selbst", sagte Giovannoni. Sie töten ständig Unmengen von ihnen. Offenbar sind die SAR11-Bakterien aber in der Lage, sich an die Bedrohung anzupassen und dadurch ihre Population stabil zu halten, sagen die Forscher. Es gibt also demnach ein ständiges Wettrüsten zwischen den Meeresbakterien und ihren viralen Feinden. Das Wissen über dieses Zusammenspiel sei ein wichtiges Puzzleteil beim Verständnis der Stoffkreisläufe im Ozean. Das Gleichgewicht im Kampf zwischen SAR11-Bakterien und Pelagiphagen beeinflusst letztendlich alles Leben auf unserem Planeten, resümieren die Wissenschaftler. Stephen Giovannoni (Oregon State University) et al.: Nature, doi:10.1038/nature11921 "

the official website of Stephen Wolfram's A New Kind of Science

Mathematica is a computational software program used in scientific, engineering, and mathematical fields and other areas of technical computing. It was conceived by Stephen Wolfram and is developed by Wolfram Research of Champaign, Illinois.[2][3]

ScienceDaily (May 9, 2011) - Mayo Clinic researchers have designed a new tool for identifying protein function from genetic code. A team led by Stephen Ekker, Ph.D., succeeded in switching individual genes off and on in zebrafish, then observing embryonic and juvenile development. The study appears in the journal Nature Methods.

'It is now virtually certain a child born in 1979 will not reach 50 years of age before the Arctic is ice-free in the summer. That is a rapid change on a planetary scale, with far-reaching consequences that scientists are just beginning to understand.' Stephen Leahy, Inter Press Service

"Understanding the relationship between diversity and stability requires a knowledge of how species interact with each other and how each is affected by the environment. The relationship is also complex, because the concept of stability is multifaceted; different types of stability describing different properties of ecosystems lead to multiple diversity-stability relationships. A growing number of empirical studies demonstrate positive diversity-stability relationships. These studies, however, have emphasized only a few types of stability, and they rarely uncover the mechanisms responsible for stability. Because anthropogenic changes often affect stability and diversity simultaneously, diversity-stability relationships cannot be understood outside the context of the environmental drivers affecting both. This shifts attention away from diversity-stability relationships toward the multiple factors, including diversity, that dictate the stability of ecosystems."

"And the more urgent the issue, the more people want to remain unaware, according to a paper published online in APA's Journal of Personality and Social Psychology. "These studies were designed to help understand the so-called 'ignorance is bliss' approach to social issues," said author Steven Shepherd, a graduate student with the University of Waterloo in Ontario. "The findings can assist educators in addressing significant barriers to getting people involved and engaged in social issues."