this study was designed to develop a modified tbi weight drop model for induction of focal mild cerebral injury. a stereotaxic coupled weight drop device was designed. principle arm of device carries up to 500g weights which their force was conveyed to animal skull through a thin nail like metal tip. to determine the optimal configuration of the device to induce mild tbi, six different trials w...

One of the challenges in the large scale simulations required for biomolecular system is the recording, monitoring and visualization of configurational information from molecular dynamics trajectories. A detailed record of instantaneous configuration along the full trajectory can quickly become unmanageable. In this paper we will describe an alternative approach where configurations averaged ov...

We propose a new transition state for oxygen in silica. This state is produced by the insertion of an oxygen molecule into the Si − O − Si bond, i.e. it consists of producing a Si−O−O−O−Si bond. This state allows molecular oxygen diffusion in silica without breaking the molecular O2 bond and it is energetically more stable than a peroxy configuration. This configuration may allow for exchange o...