December 2013

malaria prevelance

How to predict malaria prevalence?

A recent paper published in Sustainability open access journal shows a method predicting malaria prevalence in Ghana. I’m really curious since the paper using a term of “economic analysis” ^_^ Is it a typo here?…


happiness index

Ready for Gross National Happiness?

GDP is the most common indicator for wealth adopted by many countries in the world. How about the happiness index? We read some studies have established the happiness rate, and listed countries as well. A…


electric car

Electric vehicle: greener but expensive

A recent assessment shows that electric vehicle is more expensive but has lower environmental impact. Using a life cycle perspective, researchers found that electric vehicles have a higher total cost of ownership compared to conventional…