Dissertation Research: Joint Structure and Function in Extant Primates and Subfossil Lemurs

9406621克里斯托弗·拉夫/凯瑟琳·拉弗蒂本论文项目是成像技术从射线照片到不同现存和化石灵长类动物关节力学的动力学和比较的创新应用。有大量证据表明，关节关节下区域的松质骨对力学环境的改变有反应。例如，通过朝向存在的主要应力的方向定向，骨性支柱和板将起到最小化弯曲应力的作用。该项目将研究一些灵长类和其他哺乳动物物种的外部和关节下关节结构与身体大小和运动的关系，并将结果应用于博物馆收藏的亚化石狐猴的骨学标本的研究。关节表面积和体积将通过外部测量估计，关节下松质骨的质量、密度和分布将通过X线片的图像分析得出。该项目还将导致对一名新的专业人员进行专家和专门培训。***

9406621 Christopher Ruff/ Catherine Rafferty This dissertation project is an innovative application of imaging techniques from radiographs to the dynamics and comparisons of joint mechanics of different living and fossil primates. There is substantial evidence that trabecular bone in the subarticular regions of joints respond to alterations in the mechanical environment. By becoming oriented in the direction of the major stresses existing, the boney struts and plates will act to minimize the bending stresses, as one example. This project will examine external and subarticular joint structure in relation to body size and locomotion in a number of primate and other mammalian species, and the results will be applied to the study of osteological specimens of subfossil lemurs in museum collections. Joint surface area and volume will be estimated from external measurements, and the mass, density and distribution of subarticular trabecular bone will be derived using image analysis of the radiographs. The project will also result in the expert and specialized training of a new professional. ***