a group of researchers from the massachusetts institute of technology emmet in a new sensor used a material that reacts to tiny gas particles. it is very sensitive. they combined this technology with a very durable and simple polymer material. this composite structure traps gas molecules and changes its resistance. this polymeric composition is a sensor with high sensitivity and reversible. researchers used this system to detect the audible gas of nitrogen dioxide, which is created by combustion. these sensors are used in petrochemical and oil industry. have a wide the first treatment of diabetes with cell therapy in the world. shanghai university of china announced: the researchers of this university treated a patient who had been suffering from diabetes for 25 years with cell therapy for the first time. with cell transplantation , areas of this patient's pancreas were repaired and restored, and he resumed the production of insulin hormone. after 11 weeks of illness. diabetic from insulin injections and after one year from oral blood sugar control drugs it is completely unnecessary. specia