Changes in Center of Rotation and Load Sharing Characteristics Following Posterior Dynamic Stabilization in the Lumbar Spine Yoon-Ho Ahn1, Kyung-Woo Park2, Wen-Ming Chen3, Jae-Won Lee1, Duk-Young Jung4, Sung-Jae Lee1 1Department of Biomedical Engineering, Inje University, Gimhae, South Korea; 2Department of Neurosurgery, Kwang-Hye Spine Hospital, Seoul, South Korea; 3Division of Bioengineering,...

In all areas of physics, conservation laws are essential since they allow us to draw conclusions of a physical system under study in an efficient way. Electrodynamics, in terms of the standard Maxwell electromagnetic equations for fields in vacuum, exhibit a rich set of symmetries to which conserved quantities are associated. Recently, there has been a renewed interest in the utilisation of suc...

We analysed 580 articles (original articles only) published in Medical Journal of Malaysia between 2004 and 2008, the resources referenced by the articles and the citations and impact received. Our aim was to examine article and author productivity, the age of references used and impact of the journal. Publication data was obtained from MyAIS database and Google Scholar provided the citation da...

The adaptive optics (AO) simulations at the Thirty Meter Telescope (TMT) have been carried out using the efficient, C based multi-threaded adaptive optics simulator (MAOS, http://github.com/lianqiw/maos). By porting time-critical parts of MAOS to graphical processing units (GPU) using NVIDIA CUDA technology, we achieved a 10 fold speed up for each GTX 580 GPU used compared to a modern quad core...

A2 milk is allergenic 574 William B Smith, Deryn Thompson, Margaret Kummerow, Patrick Quinn, Michael S Gold Prescribing of amino acid infant formula 574 Andrew S Kemp Rectal perforation from colonic irrigation administered by alternative practitioners 575 Doug V Handley, Nick A Rieger, David J Rodda Critical shortage of injectable thiamine in Australia 577 Simon Spedding, Matt D Gaughwin Pertus...

www.sciencemag.org (this information is current as of October 23, 2008 ): The following resources related to this article are available online at http://www.sciencemag.org/cgi/content/full/322/5901/580 version of this article at: including high-resolution figures, can be found in the online Updated information and services, http://www.sciencemag.org/cgi/content/full/322/5901/580/DC1 can be foun...

The fluorescence spectra of colonies of Propionibacterium acnes were studied under various experimental conditions. The spectra contained peaks at 580 nm and 620 nm. These bands were due to two different components; the 580 nm component was likely to be a metalloporphyrin, and there are indications that the 620 nm component could be a coproporphyrin. The 580 nm fluorescence was destroyed by the...

We study the anyon statistics of a 2 + 1 dimensional Maxwell-ChernSimons (MCS) gauge theory by using a systemmetic metheod, the Breit Hamiltonian formalism.

Aims: Our study was designed to find out the incidence of micrometastases in 580 cervical lymph nodes using serial sectioning and by using immunohistochemical stains CK(cytokeratin) and EMA(epithelial membrane antigen). Settings and Design: study was conducted on 30 patients who were diagnosed with head and neck carcinomas and subsequently underwent neck dissections. Patients with head and neck...