SWEDISH doctors have developed a painkilling device that can be implanted into the spine to relieve patients suffering from angina pectoris -- pain in the chest brought on by exertion and caused by
Among steps undertaken by the municipally owned Stockholm Water were renovation of the waste water network, construction of a storm sewer overflow basin and measures to reduce the load on pipes and treatment plants.
Plastics are a major environmental problem because they are not biodegradable. One exception is polyhydroxybutyrate-hydroxyvalerate (PHB-V), but manufacturing it is expensive and its use is
