cephalometry is an important branch of anthropology in which the dimensions of head and face can be determined. these dimensions are used to show indexes for studying brain growth and formation of all types of head and face. indexes are vary from 65 to 95 for head and 65 to105 for face, which are used to determine 4 international anatomic types of head and 5 international anatomic types of face...

background head injury is a major health problem worldwide, especially in children (1). trauma is one of the most common causes of morbidity and mortality in developed societies. traumatic injuries to the head can occur because of motor vehicle crashes, falling from heights, being beaten, and brain injuries caused by child abuse (4). the most common causes of head trauma in children are child a...

Inflicted brain injury is associated with widespread traumatic axonal injury (TAI) and subdural hematoma and is the leading cause of death in infants and children. Anesthetized 3-5-day-old piglets were subjected to either a single (n = 5) or double (n = 6, 15 min apart) rapid (<15 msec), non-impact, axial rotations of the head. Peak rotational velocities (averaging 172 rad/sec for single and 13...

In prospective memory tasks different kinds of load can occur. Adding a prospective memory task can impose a load on ongoing task performance. Adding ongoing task load (OTL) can affect prospective memory performance. The existence of multiple target events increases prospective load (PL) and adding complexity to the to-be-remembered action increases retrospective load (RL). In two experiments, ...

The objective of this study was to examine how changes in glenohumeral joint conformity and loading patterns affected the forces and strains developed at the glenoid. After removal of soft tissue (muscles, ligaments, and labrum), force-displacement data were collected for both natural and prosthetically reconstructed joints. Joints were shown to develop higher forces for a given translation as ...

One of the main factors affecting performance telescopic booms is loss local stability shelves and section walls. The sections occurs due to development plastic deformations in some most loaded or as a result stable equilibrium even at stage elastic deformation. In this case, maximum stresses boom are formed location supporting elements, where summation from external loads forces acting side el...