Over 40% of people taking Xenical achieved a 5% decrease in their starting body weight. Saxenda users achieved a 5% decrease in their body weight in more than 63% of cases. Eating a balanced diet and ...

Backward waves have recently attracted considerable interest in the context of photonic metamaterials 4, 5, where they form the basis for negative refraction 6 and underlie so-called perfect lenses 7, ...