The prevalence of bone fractures increases markedly with age, which is correlated to osteoporosis, low bone mass and structural deterioration of trabecular bone. Infiltration of bone cement into vertebral bodies (vertebroplasty) has been shown to substantially increase the strength and stiffness of mechanically compromised trabecular bone. It was expected that a similar benefit might be realize...

juvenile idiopathic arthritis, Kikuchi's disease and haemophagocytic lym-phohistiocytosis—is there a link? Case report and literature review. SIR, Haigh et al. [1] state that measurement of objective joint stiffness does not relate to that experienced by the patient in rheumatoid arthritis (RA). This premise underlies their paper on phantom limb stiffness in amputees who have RA. However, more ...

The steel plate shear wall is one of the seismic resistance devices which installed in flame building to improve horizontal stiffness and strength. Shear force loaded on when acts building. In order prevent overall buckling by force, some stiffeners are welded types arrangements. Therefore, design very important strength deterioration maintain restoring force.

Enzyme activity plays an essential role in many physiological processes and diseases such as pulmonary emphysema. While the lung is constantly exposed to cyclic stretching, the effects of stretch on the mechanical properties of the extracellular matrix (ECM) during digestion have not been determined. We measured the mechanical and failure properties of elastin-rich ECM sheets loaded with static...

a deterioration and the consequent status of feeblemindedness, this child must receive treatment different from that given the entirely normal individual. The mentality, both functional and structural, must be determined by an analysis which will reveal the phases where special training is required by the child. This analysis is made by the use of well defined and carefully administered tests. ...

This paper presents formulations and procedure of an efficient calculation of stress spectra and fatigue damage of offshore structures with deteriorated members in the uncertainty space. Calculation modeling of member deteriorations is represented by equivalent spring systems, which can be determined on basis of damage detection and stiffness degradation, with a deterioration uncertainty parame...

The first aim of this study was to determine the age group at which marathon performance declines in top male and female runners and to compare that to the runners of average ability. Another aim of this of this study was to examine the age-related yearly decline in marathon performance between age group winners and the average marathon finisher. Data from the New York (NYC), Boston, and Chicag...