Archive: 01/5/2011

Oxygen's challenge to early life

The conventional view of the history of the Earth is that the oceans became oxygen-rich to approximately the degree they are today in the Late Ediacaran Period (about 600 million years ago) after staying relatively ...

Jan 05, 2011
4.4 / 5 (15) 10 | with audio podcast

The empathy gap in bullying

Taunted, harassed and pushed to a deadly breaking point. Last year, stories of teen bullying brought to life the heartbreaking consequences of young lives cut short by ruthless and unchecked behavior. Recent media coverage ...

Jan 05, 2011
4.9 / 5 (8) 1 | with audio podcast

Where MRSA colonizes on the human body

When methicillin-resistant S. aureus (MRSA) is carried in the nose (nares), it is a risk factor for an invasive infection, including a surgical site infection. Some studies have found that the heavier the carriage of MRS ...

Jan 05, 2011
4.7 / 5 (6) 3 | with audio podcast