The Ministry of Finance has announced that the rating agency Standard & Poor’s (S&P) on April 29 gave Vietnam a crediting rating of BB-/B and a stable outlook, unchanged from the ratings announced in March 2015. SEE MORE Vietnam’s economy is coping with a slew of woeful challenges this year as fresh problems have arisen, said a Ministry of Planning and Investment report sent to the May 4-5 cabinet meeting in Hanoi. SEE MORE Civil servants and public employees, including teachers and doctors, will have the first raise in three years this month when the basic wage level used to calculate their income sees a 5-percent bump. SEE MORE The prices of RON 92 petrol and bio-fuel E5 were raised 646 VND and 634 VND per litre from 3:00 pm on May 5. SEE MORE Polymer solar cells can be even cheaper and more reliable thanks to a breakthrough by scientists at Linköping University and the Chinese Academy of Sciences (CAS). This work avoids costly and unstable fullerenes. Polymer solar cells have in recent years emerged as a low cost alternative to silicon solar cells. In order to obtain high efficiency, fullerenes are usually required in polymer solar cells to separate charge carriers. However, fullerenes are unstable under illumination, and form large crystals at high temperatures. SEE MORE