Biodiversity: Challenge, Science, Opportunity

Biodiversity--an international challenge.

Opportunity and challenge in China.

Background: Transient arrhythmias can affect transient ischemic dilation (TID) ratios. This study was initiated to evaluate the frequency and effect of normal heart rate change on TID measures in routine clinical practice. Methods: Consecutive patients undergoing stress/rest sestamibi gated myocardial perfusion scintigraphy were studied (N = 407). Heart rate at the time of stress and rest imagi...

The prevention challenge and opportunity.

In the United States, more money is spent on treating diseases and their complications than on preventing them in the first place. Prevention is both undervalued and poorly supported in our health system. In this Perspective I discuss how the McKinlay model can be used to illustrate the three levels at which we need to increase our investment in prevention. I recognize the many challenges in im...

Biometrics: Accessibility challenge or opportunity?

Biometric recognition is currently implemented in several authentication contexts, most recently in mobile devices where it is expected to complement or even replace traditional authentication modalities such as PIN (Personal Identification Number) or passwords. The assumed convenience characteristics of biometrics are transparency, reliability and ease-of-use, however, the question of whether ...

Biodiversity challenge to funding priorities

Ten years after the key Earth Summit in Rio, a key group of influential politicians in Britain are flagging up the need to support research into taxonomy as a basis for biodiversity studies ahead of this summer's meeting in South Africa. Nigel Williams reports.