Small samples of rock, like those used in laboratory collision experiments, are known to be much stronger than bodies that are meters to hundreds of meters in size [1]. Specifically, the impactor energy per unit target mass needed to shatter the target decreases dramatically with increasing target size. This occurs because the strength of rock, like many other geological materials, depends stro...

With the advent of rapid genome sequencing, the view of the human genome as a vast desert dotted with far-flung oases of functional genes has contended with a growing appreciation of the role of regulatory sequences in shaping gene expression. The fraction of the human genome’s noncoding component that can be considered functional remains to be established, but strewn across the seeming wastela...

The calculation of uncertainty for a measurement is an effort to set reasonable bounds for the measurement result according to standardized rules. Since every measurement produces only an estimate of the answer, the primary requisite of an uncertainty statement is to inform the reader of how sure the writer is that the answer is in a certain range. This report explains how we have implemented t...

For technical support, contact [email protected] www.vishaymg.com 19 Revision 15-Aug-07 I. Residual Stresses and Their Measurement Residual (locked-in) stresses in a structural material or component are those stresses that exist in the object without (and usually prior to) the application of any service or other external loads. Manufacturing processes are the most common causes of r...

Perhaps the most famous brain injury in history was a penetrating wound suffered by a rail road worker named Phineas Gage on September 13, 1848. Twelve years after his injury, on the 21st of May, 1860 Phineas Gage died of an epileptic seizure. In 1868 Dr. Harlow gave an outline of Gage's case history and first disclosed his remarkable personality change. One might think this report would assure...

BACKGROUND Cancer/testis antigens (CTAs) are expressed in several cancers and during normal adult male germ cell differentiation. Little is known about their role in fetal development of human germ cells. METHODS We examined expression of the CTAs MAGE-A1, GAGE and NY-ESO-1 in fetal gonads by single and double immunohistochemical staining. RESULTS We found that GAGE was expressed in the pri...

A novel experimental set-up is proposed to perform in-plane torsion experiments on grooved disk specimens. As compared previously systems, an enhanced clamping system introduced enable the testing of high strength materials such as dual phase steels. The achieved without applying pressure through axial actuator. Instead a custom-made washer-nut used which allows for monitoring entire specimen f...

Growth-preserving spinal surgery suffer from high complications rate. A recent bipolar instrumentation using two anchoring points (thoracic and pelvic) showed lower rates, but its biomechanical behaviour has not been characterised yet. The aim of this work was to combine in vitro vivo data improve validate a finite element model (FEM) the spine, apply it compare classical all-screws implants. S...