Seventeen patients underwent treatment for a pathological fracture of the proximal femur due to osteosarcoma. Their age range was from 9 to 84 (mean age 42) with nine patients under the age of 40 and eight above the age of 40. Twelve patients had a fracture at diagnosis and five developed a fracture after the diagnosis. Seven patients had metastatic disease at diagnosis. Five patients were refe...

This work shows that multiple length-scales must be considered concurrently to explain a polymer fiber's impressive mechanical performance and resilience. The considerations of interatomic interactions alone cannot explain the fracture strength observed in biological fibers. Instead, the fracture strength of a fiber depends strongly on the length-scale of observation, including a fiber's sensit...

This paper clari es two variable-toxed length codes which achieve optimum large deviations performance of empirical compression ratio. One is Lempel-Ziv code with xed number of phrases, and the other is an arithmetic code with xed codeword length. It is shown that Lempel-Ziv code is asymptotically optimum in the above sense, for the class of nite-alphabet and nite-state sources, and that the ar...

We propose a length-free (LF) implementation of phase field (PF) approach to fracture. The input parameters the LF-PF model are same as those coupled criterion (CC), namely critical energy release rate Gc and material tensile strength ?c. This formulation relies on previously determined correlation between internal length in classical PF fracture models strength. Similar failure loads obtained ...

According to numerous studies, there are basic and initial scaling relationship for the geometric and kinematic characteristics of faults. The study area is located in the northern part of the Kerman coal province. The statistical calculations are consisting of:  measure the surface density of faults per unite area and division of the area, determining the direction of the dominant faulting and...

Introduction: Unstable ankle fractures are a common presentation and operative intervention has proven to improve patient outcomes. Each stage of patient management can have an impact on patient length of stay and clinical outcome. The aim of the present study is to assess how we manage the patient at each stage from their presentation right through to discharge, and if/how variation in practic...

If the distances of TSP satisfy the triangle inequality, the minimum-cost-spanning tree (MST) heuristics produces a tour whose length is guaranteed to be less than 2 times the optimum tour length and Christofides’ heuristics generates the 3/2 times the optimum tour length. Otherwise, the quality of the approximation is hard to evaluate. Here a four vertices and three lines inequality is used to...

We utilize a new VLA Galactic plane catalog at 1.4 GHz covering the first and second Galactic quadrants (340 • ≤ l ≤ 120 • , |b| ≤ 0.8 • with |b| ≤ 1.8 • for 350 • ≤ l ≤ 40 • and |b| ≤ 2.5 • for 100 • ≤ l ≤ 105 •) in conjunction with the MSX6C Galactic plane mid-infrared catalog to supplement and better understand our 5 GHz catalog (Giveon et al. 2005). A radio catalog of this region was first ...

We used fracture-label and surface labeling techniques to characterize the distribution and topology of wheat germ agglutinin (WGA) receptors in the plasma membrane of boar sperm heads. We show that freeze-fracture results in preferential, but not exclusive, partition of WGA-binding sites with the outer (exoplasmic) half of the plasma membrane. Labeling of the inner (protoplasmic) half of the m...