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The regenerating potential of human bone is limited. The repair of large bone defects often associated with bone tumor resections is not observed, and nonunion or delayed union of bone is a serious problem for fracture treatment. In these cases, autogeneic or allogeneic bone grafting has been routinely indicated, but these approaches require invasive surgical procedures. An alternative approach described...
In adult human beings, remodeling creates nearly all of new bone tissue. However, Frost hypothesized that modeling can go on in trabeculae throughout life. As this hypothesis has not been verified, we looked for histologic evidence of trabecular modeling (minimodeling) during bone histomorphometry of transiliac bone biopsy specimens obtained from 34 patients (age range, 38-81 years; mean age, 58.4...
Pulse technique was proposed in this paper to study the characteristics of three kinds coal-char combustion with high partial pressure of oxygen under the temperature of 1273–1573K to simulate the process of coal combustion with pure oxygen. Oxygen or the mixture of nitrogen and oxygen was taken as the pulse gas. An on-line gas chromatography with TCD was employed to detect the concentration of CO...
The C 2 radical density was measured in a low-pressure, radio frequency (rf), inductively coupled plasma (ICP) employing a CH 3 OH/H 2 /H 2 O mixture. Measurement was carried out under the conditions where predominantly diamond can be formed. At the typical growth conditions for the low-pressure, rf ICP reactor used for diamond formation, the C 2 radical density...
The purpose of this study was to evaluate the usefulness of a combination regimen of anabolic and antiresorptive agents in increasing skeletal quantity and quality in comparison to a single-drug regimen with these agents. We examined histomorphometrically and biomechanically the effects of separate and combined administration of intermittent parathyroid hormone (PTH) and estrogen or bisphosphonate...
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