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Biomedical subjects

A A Seireg

Publications and source records attributed to A A Seireg.

5 recordsLinked to original sources
PubMed1999

Prediction of ulcer formation on the skin.

The study reported in this paper investigates the feasibility of developing criteria for predicting the formation of ulcers on the human skin. Published data on the effect of pressure, friction, shear, oxygen tension, temperature, and exposure time on ulcer formation are analyzed, combined, and incorporated in developing the criteria. The results illustrate the relative contributions of the different parameters to the formation of ulcers. The developed relationships can provide guidelines for more rigorous clinical studies which would take into consideration the effect of age, sex, and physical conditions on the formation of ulcers at different sites of the body.

Friction↗
PubMed1984

Pathogenesis of canine aural hematomas.

Morphologic examination of 3 ears from 2 dogs with aural hematomas revealed that the hematomas had developed within the pinnal cartilage. The cartilage had fractured from perichondrium to perichondrium and in some areas clefts had formed within the cartilage. Cartilage fracture could have resulted from wave motions set up in the pinna during head shaking. An explosive burst of head shaking exceeding a critical head velocity or a more gentle but sustained head shaking establishing a sinusoidal wave motion within the ear could have caused cartilage fracture.

Animals↗
PubMed1975

Normal postural stability and steadiness: quantitative assessment.

A force platform was utilized to provide a new and sensitive means to measure postural steadiness and stability. Normal standards are presented for the center of pressure of the vertical supportive force during standing and sustained weight-shifting of normal men in three age groups. Two distinguishing characteristics were seen for normal upright posture: (1) a large area of stability over which weight can be safely shifted and maintained, and (2) steadiness such that the center of pressure fluctuates incessantly, traversing large total excursions, while remaining remarkably close to the mean point. The youngest age group showed the greatest steadiness and stability and the oldest group showed the least.

Adult↗