We would hazard there's not a single person reading this who hasn't had their rush-hour standing snooze interrupted by an irate tube driver imploring passengers not to lean on the doors. Looking at the faces of those nearby as the train struggles to get going, it's clear some think the driver is overreacting a tad as he or she berates a wedged-in punter for what seems a trivial offence. So what catastrophe befalls such a train bulging with commuters? We duly extracted the required knowledge from the 'rolling stock professional head' which we like to picture as a giant brain buried deep beneath Paddington station. All tube train doors have a safety circuit, known colloquially as an interlock but more fancily as a 'sensitive edge'. If the doors are open to any degree, the circuit is broken and the power to the train's propulsion system is cut.
Water Properties Questions & Answers
Enteral feeding is a method of supplying nutrients directly into the gastrointestinal tract. This guideline will use this term describe Orogastric, Nasogastric and Gastrostomy tube feeding. A wide range of children may require enteral feeding either for a short or long period of time for a variety of reasons including:. It is imperative that nursing staff caring for children who have enteral tubes in understand why it is in-situ. For information regarding the Jejunal feeding and medication administration please see the Jejunal Feeding Guideline.
Nasogastric Tube/Orogastric Tube- Checking the Position
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Pneumatic tubes or capsule pipelines ; also known as pneumatic tube transport or PTT are systems that propel cylindrical containers through networks of tubes by compressed air or by partial vacuum. Pneumatic tube networks gained acceptance in the late 19th and early 20th centuries for offices that needed to transport small, urgent packages such as mail, paperwork, or money over relatively short distances within a building or, at most, within a city. Some installations grew to great complexity, but were mostly superseded. In some settings, such as hospitals, they remain widespread and have been further extended and developed in the 21st century. A small number of pneumatic transportation systems were also built for larger cargo, to compete with more standard train and subway systems. However, these never gained popularity. Pneumatic transportation was invented by William Murdoch around