The Titanotherium Beds

Flow through Packed Beds and Fluidized Beds

Chemical engineering operations commonly involve the use of packed and fluidized beds. These are devices in which a large surface area for contact between a liquid and a gas (absorption, distillation) or a solid and a gas or liquid (adsorption, catalysis) is obtained for achieving rapid mass and heat transfer, and particularly in the case of fluidized beds, catalytic chemical reactions. You wil...

The Safety of Hospital Beds

Who needs beds?

We wish to respond to two recent articles highlighting a decline in the frequency of bedside teaching and advocating a return to this traditional clinical education set piece [1, 2] We agree with the assertion that bedside teaching has, in the past, proved to be an important form of clinical education through which learners gain professional, communication, physical examination and reasoning sk...

How many hospital beds?

For many years, average bed occupancy level has been the primary measure that has guided hospital bed capacity decisions at both policy and managerial levels. Even now, the common wisdom that there is an excess of beds nationally has been based on a federal target of 85% occupancy that was developed about 25 years ago. This paper examines data from New York state and uses queueing analysis to e...

The younger chronic sick: how many beds?

The Chronically Sick and Disabled Persons Act (1970) is an expression of the increasing attention being paid to the needs of the handicapped in our society. The most severely physically handicapped represent only a small proportion of the total who are physically disabled (Harris, 1971) but their degree of dependency often makes it necessary to care for them in institutions, either in the form ...