Snapshots of vibrating molecules

Interaction of Electrons with Vibrating Molecules

Abstract. General theoretical approach, based on projection operator techniques and scattering theory, applied to the electron transport through flexible molecular bridge is reviewed and explained within a simple model describing a biphenyl molecule connected between two metal leads. Transmission probability through the bridge and its current-voltage characteristics are calculated in one electr...

Snapshots.

Lazy Snapshots

Determining the global state of distributed systems is an important problem in the absence of global memory and global clocks. Several algorithms have been proposed for collecting global states. This paper presents an optimization to the algorithm proposed by Chandy and Lamport that lets processes in a distributed system take a lazy approach to recording their state. The lazy optimization relax...

Snapshots of Pluripotency

Pluripotency is a unique developmental state that lays the foundation upon which the entire embryo is built. Pluripotent cells possess the unique capacity to generate, in an exquisitely defined sequence, all the distinct cell types comprising the fetal and adult organism. The discovery of pluripotent stem cells and now the ability to generate them from differentiated cells has had a profound im...

Development of vibrating insoles.

The objective of this study was to describe the development of vibrating insoles. Insoles, providing a subsensory mechanical noise signal to the plantar side of the feet, may improve balance in healthy young and older people and in patients with stroke or diabetic neuropathy. This study describes the requirements for the tactors, (tactile actuators) insole material and noise generator. A search...