Entanglement dynamics for two spins in an optical cavity - field interaction induced decoherence and coherence revival.

We in this paper study quantum correlations for two neutral spin-particles coupled with a single-mode optical cavity through the usual magnetic interaction. Two-spin entangled states for both antiparallel and parallel spin-polarizations are generated under the photon coherent-state assumption. Based on the quantum master equation we derive the time-dependent quantum correlation of Clauser-Horne-Shimony-Holt (CHSH) type explicitly in comparison with the well known entanglement-measure concurrence.

Biomechanical modeling of decompressive craniectomy in traumatic brain injury.

Background: Decompressive craniectomy is the final phase in the graded scheme of critical care management of refractory raised intracranial pressure following severe traumatic brain injury. We aim to define the optimal size for decompressive craniectomy so that a good balance is achieved between reduction of raised ICP and the extent of trans-calvarial herniation. Provision of such quantitative data will also allow for improved data comparison in clinical trials addressing the surgical management of severe head injury.

[Cloning and expression of tumor necrosis factor (TNFalpha) cDNA from red seabream pagrus major].

A fragment of TNFalpha cDNA sequence from red seabream was cloned by homology cloning approach with two degenerated primers which were designed based on the conserved regions of other animals' TNF sequences. The sequence was elongated by 3' and 5' RACE to get the full length CDS sequence. This sequence contained 1264 nucleotides that included a 5' UTR of 85 bp, a 3' UTR of 514 bp and an open reading frame (ORF) of 666 bp which could encode 222 amino acids propeptide.