Resettable binary latch mechanism for use with paraffin linear motors

A new resettable Binary Latch Mechanism was developed utilizing a paraffin actuator as the motor. This linear actuator alternately latches between extended and retracted positions, maintaining either position with zero power consumption. The design evolution and kinematics of the latch mechanism are presented, as well as the development problems and lessons that were learned

The role of supervisory neglect in childhood injury

This paper explores the theoretical understandings of supervisory neglect and how these understandings might assist in delivering practical responses using a public health approach to child protection.Injury is the leading cause of death in Australians 1–44 years of age (McClure, Stevenson, & McEvoy, 2004). Transport-related injury, drowning, and assault/homicide were the three leading causes of injury-related deaths in Australian children between 2004 and 2006 (AIHW, 2009). Children are particularly vulnerable to different types of injury depending on their stage of growth and development. This vulnerability is dependent on a combination of the child’s developmental stage, exposure to environmental risk factors and the presence of protective factors (Towner & Dowswell, 2002). Due to the diverse nature of injury in the population, prevention programs are mainly targeted at similar types of injury or circumstances in specific population groups. Examples of such targeted programs include preventing car crashes in newly licensed young drivers or educating beach goers to swim between the flags

Nitrogen's most common forms (1991)

"New/February 1991/10M.""Water Quality.""Focus area : nutrients and bacterial wastes.""Nitrogen in the environment.""Published by University Extension. University of Missouri-Columbia.

Nitrogen fixation (1991)

"New/February/1991/10M.""Water Quality.""Focus area : nutrients and bacterial wastes."" Nitrogen in the environment -- Focus type.""Published by University Extension. University of Missouri-Columbia.""This material is based upon work supported by the United States Department of Agriculture, Extension Service, under special project number 89-EWQI-1-9203.

Leaching (1991)

"New/February 1991/10M.""Water Quality.""Focus area : nutrients and bacterial wastes."" Nitrogen in the environment.""Published by University Extension. University of Missouri-Columbia.""This material is based upon work supported by the United States Department of Agriculture, Extension Service, under special project number 89-EWQI-1-9203.

How nitrogen enters groundwater (1991)

"New/February 1991/10M.""Water Quality.""Focus area : nutrients and bacterial wastes.""Nitrogen in the environment.""Published by University Extension. University of Missouri-Columbia.

Nitrogen Cycle (1991)

"New/February 1991/10M.""Water Quality."" Focus area : nutrients and bacterial wastes.""Nitrogen in the environment.""Published by University Extension. University of Missouri-Columbia.

Mineralization -- immobilization (1991)

"New/February 1991/10M.""Water Quality.""Focus area : nutrients and bacterial wastes."" Nitrogen in the environment -- Focus type.""Published by University Extension. University of Missouri-Columbia.""This material is based upon work supported by the United States Department of Agriculture, Extension Service, under special project number 89-EWQI-1-9203.