Iran’s government spokesman Mohammad Baqer Nobakht highlighted the significance that Tehran attaches to the sovereignty of its neighbors, saying it is critical for Iraq to protect its territorial integrity amidst the Kurdistan region’s controversial move to hold a secessionist referendum.
Hebei province, home to many of China's most polluted cities, has promised to close down companies that are poisoning the environment, but after years of protests villagers living in the shadows of the Guantao chemical park remain skeptical.
A recent alleged hacking of Qatar's official state news agency has sparked a row with its Arab neighbors in the Persian Gulf, with analysts predicting that it could even fuel old tensions in the region.
To decide whether and where to move in the body, cells must read chemical signals in their environment. Individual cells do not act alone during this process, two new studies on mouse mammary tissue show. Instead, the cells make decisions collectively after exchanging information about the chemical messages they are receiving.