BACKGROUND Complications associated with iliac crest bone-graft donor sites have been reported. This prospective study was conducted to determine the prevalence of pain and complications at the iliac crest donor site in patients undergoing treatment of fracture nonunion. METHODS Ninety-two patients undergoing anterior iliac crest bone-grafting for nonunion or delayed union of a long-bone frac...

This study assessed the influences of slope aspect on soil physicochemical properties (soil quality indicators) contiguous south-north facing slopes and hill plain (ridge crest) mid-mountain in Central Anatolia, having same climate, vegetation parent material. Anatolian black pine (Pinus nigra subsp. Pallasiana var. (Arnold)) was dominant, Cedar (Cedrus libani A. Richard), oak (Quercus sp.) wer...

A novel family of curves was described, which allows to construct arc length parameterized curves between two arbitrary points, with given slopes at the curves' two endpoints. A numerical routine for nding the curves was developed and implemented. Future work may include solving more general problems, such as extending the concepts introduced here to three-dimensional curves. References 1] B. A...

Nonhydrostatic modeling has emerged as an effective tool for seismological and tsunami research over a decade, but its general application in hazard mapping engineering design remains topic of discussion. The approach incorporates the depth-averaged vertical velocity nonhydrostatic pressure nonlinear shallow-water equations that provide Poisson-type equation via conservation mass quasi-three-di...

the problem of a footing on slope is encountered regularly in engineering practice, with some noteworthy examples being bridge abutments and basement excavations. in this paper, the bearing capacity of a footing replaced near a slope crest was studied. model tests were carried out using square model footing of 100 mm width. a tank 0.3 m deep, 0.6 m wide, and 0.9 m long was used for the model be...

We analyze three-body decays of and . Under the factorization approach, there are tree level diagrams for these decay modes and the transition matrix element of decay is factorized into a form factor multiplied by decay constant and form factor multiplied into weak vertices form factor. The transition matrix element of decay is also factorized into a form factor multiplied into weak vertic...

The radiative flux of internal wave energy (the “tidal conversion”) powered by the oscillating flow of a uniformly stratified fluid over a two-dimensional submarine ridge is computed using an integral-equation method. The problem is characterized by two nondimensional parameters, A and B. The first parameter, A, is the ridge half-width scaled by h, where h is the uniform depth of the ocean far ...

background: surface microhardness is a physical property which access the effect of chemical and physical agents on hard tissues of teeth, and a useful way to examine the resistance of fluoride treated enamel against caries. the purpose of this study was to evaluate microhardness of enamel following ph-cycling through demineralization and remineralization using suspensions of dentifrices with d...