Internal combustion engines are the most commonly used engines in the automotive world. However, these engines lack an overheating prevention system against cooling system failures when they exceed their normal operating temperature. Less experienced drivers (users) usually do not notice overheating until the engine stops, generating economic expenses in engine repairs. As such, this paper describes the design and construction of an electromechanical device to prevent engine overheating. This device is installed in a vehicle and operates independently from the electronic control unit (ECU); it records the coolant temperature and controls air admission to the engine of the vehicle in which it is installed. In addition, a new Arduino-based card will receive signals from a temperature sensor as input and process them according to its programming. Then, it will send signal outputs to the act...

Measurement of DNA, RNA and proteins in guinea pig testes, spleen, kidney, heart, liver and lungs, expressed per 100g et tissue, per organ, and as number of cells per organ was performed in 9 male, adult guinea pigs native from high altitude (Morococha, 4540m) and in 10 male, adult guinea pigs native from sea level (Lima, 150 m).Body weight was lower in high altitude guinea pigs, though not significantly; however the weight of most organs was higher in high altitude guinea pigs.High altitude animals showed higher kidney and lung protein contents per 100g wet tissue and per organ. Heart showed higher protein content per organ. Livershowed lower protein content per 100g tissue, but lower content per organ.DNA content was higher in high altitude guinea pig testes, kidneys, heart and lungs. RNA content was increased in most organs of high altitude guinea pigs, except the spleen.Cell number w...

Measurement of DNA, RNA and proteins in guinea pig testes, spleen, kidney, heart, liver and lungs, expressed per 100g et tissue, per organ, and as number of cells per organ was performed in 9 male, adult guinea pigs native from high altitude (Morococha, 4540m) and in 10 male, adult guinea pigs native from sea level (Lima, 150 m).Body weight was lower in high altitude guinea pigs, though not significantly; however the weight of most organs was higher in high altitude guinea pigs.High altitude animals showed higher kidney and lung protein contents per 100g wet tissue and per organ. Heart showed higher protein content per organ. Livershowed lower protein content per 100g tissue, but lower content per organ.DNA content was higher in high altitude guinea pig testes, kidneys, heart and lungs. RNA content was increased in most organs of high altitude guinea pigs, except the spleen.Cell number w...