منابع مشابه
Fractal Characterization of Fracture Networks: An Improved Box-counting Technique
[1] Box counting is widely used for characterizing fracture networks as fractals and estimating their fractal dimensions (D). If this analysis yields a power law distribution given by N / r , where N is the number of boxes containing one or more fractures and r is the box size, then the network is considered to be fractal. However, researchers are divided in their opinion about which is the bes...
متن کاملCarpal Box radiography in suspected scaphoid fracture.
We have assessed the value of using a simple apparatus,the Carpal Box, in patients with suspected scaphoid fracture, to produce elongated and magnified radiographs of the carpus. The interobserver agreement between 60 observers of standard scaphoid radiographs and longitudinal and transverse Carpal Box radiographs (X-CB) was compared in 11 patients. Three-phase bone scanning was used as a compa...
متن کاملAnatomical Snuff-box Pain - Scaphoid Fracture
The hand and wrist are used in almost all sports and the hand is often the least protected part of the upper extremity, leaving it vulnerable to injuries. Therefore, the hand is the most frequently injured part of the athlete's upper extremity. These injuries vary widely; diagnosis is straightforward for many but not for others. When not diagnosed early and managed appropriately, these injuries...
متن کاملAn improved, simple nest-box trap
The success of ornithological studies often hinges on a researcher’s ability to capture individuals quickly and efficiently. Sometimes it is necessary to capture the same individual multiple times, as is the case in many metabolic, ecotoxicological, and immunocompetence studies. Several methods of capturing cavity-nesting birds at their nest boxes have been described. However, these methods pro...
متن کاملEnhancing box sign : enhancement pattern of acute osteoprotic compression fracture.
OBJECTIVE Although gadolinium enhancement of compression fractures is well known, the enhancement pattern of the acute stage of a fracture is not completely understood. Here, we investigated the enhancement pattern of acute vertebral compression fractures (VCFs). METHODS We conducted a retrospective study of patients with acute osteoporotic VCFs admitted to hospital between January 2004 and D...
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ژورنال
عنوان ژورنال: The Lancet
سال: 1885
ISSN: 0140-6736
DOI: 10.1016/s0140-6736(02)22260-6