An approximate numerical mthod is presented for analysis and determination of modal characteristics in straight, pretwisted non-unifom helicopter blades. The analysis considers the coupled flapwise bending (out of plane), chordwise bending (in plane), and torsion vibration of both rotating and non-rotating blades. The proposed method is based on the integral expansion of Green functions (struct...

early-onset, generalized primary torsion dystonia (ptd) is an autosomal dominant disorder, characterized by involuntary movements and abnormal postures. the majority of cases are caused by a 3-bp deletion (gag deletion at position 946) in the dyt1 gene on chromosome 9q34 that allows for specific genetic testing. forty eight patients with early onset primary torsion dystonia were screened for th...

An approximate numerical mthod is presented for analysis and determination of modal characteristics in straight, pretwisted non-unifom helicopter blades. The analysis considers the coupled flapwise bending (out of plane), chordwise bending (in plane), and torsion vibration of both rotating and non-rotating blades. The proposed method is based on the integral expansion of Green functions (struct...

In this paper we study the structure of m-torsion points of connected locally definable abelian groups in o-minimal expansions of fields. ∗Supported by the FCT grant SFRH/BPD/6015/2001 while a post-doctoral research fellow at the Mathematical Institute, University of Oxford. MSC: 03C64; 20E99.

When compressed axially, cancellous bone often fails at an oblique angle along well-defined bands, highlighting the importance of cancellous bone shear properties. Torsion testing to determine shear properties of cancellous bone has often been conducted under conditions appropriate only for axisymmetric specimens comprised of homogeneous and isotropic materials. However, most cancellous bone sp...