Passive resistive torques about long bone axes of major human joints.

Multisegmented total-human-body models play an important role in studies such as vehicle crash victim simulation, pilot ejection and flailing. Proper biomechanical description of the major articulating joints of these mathematical models require passive resistive torque data for the rotational motions of the body segments about their long bone axes. This paper presents a research program which was developed to collect such data at the shoulder, hip, knee, elbow, and ankle joints.

Side-to-side choledochoduodenostomy in the management of choledocholithiasis.

Sixty patients with choledocholithiasis (either single or multiple stones of the biliary tree) were treated with lateral choledochoduodenostomy. Of these cases 83.3% were followed up for from 1 to 7 years.

Application of a fluid-filled spherical sandwich shell as a biodynamic head injury model for primates.

In this paper, two areas are investigated: first, the effect of pulse duration on skull fracture and brain injury and, second, under what conditions a scaling can be considered between subhuman primates and human. The skull is modeled as a spherical sandwich shell representing the general structure of the skull bones as being the compact inner and outer tables separated by a porous diploë layer. The brain and surrounding cerebrospinal fluid are modeled as an acoustic fluid with properties similar to those of water.

The validity of two clinical tests of visual-motor perception.

The study investigated the relative efficiency of the Bender and MPD as assessors of achievement-related errors in visual-motor perception. Clinical experience with these two tests suggests that beyond first grade the MPD is more sensitive than the Bender for purposes of measuring deficits in visual-motor perception that interfere with effective classroom learning. The sample was composed of 153 third-grade children from two upper-middle-class elementary schools in a surburban school system in central Ohio.

Glutathione content of human skin carcinomas.

Glutathione has important functions in the process leading to the complete neoplastic transformation of the primary cells in experimental carcinogenesis. This study was made to determine the tissue glutathione levels in the human skin carcinomas. The statistical average of glutathione values were measured by the DTNB method as 0.

The stability of four kinds of perceptual erros on the Bender-Gestalt.

The test-retest reliability of the Bender-Gestalt Test was investigated for 157 second graders from two middle-class schools. The test-retest interval ranged from 11 days through 15 days. Testing was conducted in accordance with the Koppitz procedure, but errors of distortion, rotation, integration, and preservation were determined separately.

The Hierarchical Factor Structure of the Wechsler Intelligence Scale for Children-Revised.

An hierarchial factor solution was obtained on intercorrelations among WISC-R subtests for the 11 age groups included in the standardization sample of 200 boys and girls in each of the age groups from 6.5 years to 16.5 years.