Call your doctor immediately if you have: 1  Blood in your diarrhea or black, tarry stools. 2  A fever that is high (above 101 F) or that lasts more than 24 hours. 3  Diarrhea lasting longer than 2 days.  Nausea or throwing up that prevents you from drinking liquids to replace lost 1  fluids. Severe pain in your abdomen or rectum.
The discipline of engineering is extremely broad, and encompasses a range of more specialized fields of engineering, each with a more specific emphasis on particular areas of applied science, technology and types of application.
For other uses, see Engineer (disambiguation). Engineers design materials, structures, and systems while considering the limitations imposed by practicality, regulation, safety, and cost. The word engineer (from the Latin ingeniator) is derived from the Latin words ingeniare (to contrive, devise) and ingenium (cleverness). The foundation education of an engineer is typically a 4-year bachelor's degree in an engineering discipline plus 4-6 years peer reviewed professional practice. The work of engineers forms the link between scientific discoveries and their subsequent applications to human needs and quality of life.