Mass-resolved excitation spectra of the C1 – X0 band of XeAr were measured under jet-cooled conditions using a tunable coherent vacuum ultraviolet ~VUV! light (l;130 nm) as an excitation light source and a high-resolution (m/Dm;1100) reflectron time-of-flight mass spectrometer. The rotational structure of the C1 – X0 (v8,0) (v852 – 6) vibronic bands were recorded by monitoring the parent XeAr i...

Three-hybrid assays for the analysis of RNA-protein interactions in vivo are usually used, due to technical limitations, only for RNA baits that do not contain runs of four or more consecutive uridines. The present study provides the first example of a three-hybrid analysis of synthetic and natural uridine-rich RNA sequences. The use of the three-hybrid assay enabled us to demonstrate a functio...

AIMS We wished to investigate the role of the cervical ligaments in maintaining atlantoaxial stability after fracture of the odontoid process. METHODS We dissected eight fresh-frozen cadaveric cervical spines to prepare the C1 and C2 vertebrae for biomechanical analysis. The C1 and C2 blocks were mounted and biomechanical analysis was performed to test the stability of the C1-C2 complex after...

We examined the MR appearance of the hindbrain deformity, including the upper cervical spinal canal and craniovertebral junction, in 33 patients with Chiari II malformation. In this disorder, there is impaction at birth of the medulla and cerebellar vermis into the upper cervical spine, resulting in obliteration of the subarachnoid space and scalloping of the dens. Spinal canal enlargement duri...

The bioadsorbent C1, which is a chitosan derivative prepared in one-step synthesis, was successfully used to adsorb Cr(VI) and Cu(II) simultaneously. Here, for the first time simultaneous adsorption of cation an anion modeled using Corsel model kinetics Real Adsorbed Solution Theory equilibrium data. Batch studies single binary aqueous solutions were performed as function initial solute concent...

The high pressure structural behavior of H2 and Ne clathrate hydrates with approximate composition H2/Ne·~4H2O featuring cubic structure II (CS-II) was investigated by neutron powder diffraction using the deuterated analogues at ~95 K. CS-II hydrogen hydrate transforms gradually to isocompositional C1 phase (filled ice II) around 1.1 GPa but may be metastably retained up 2.2 GPa. Above 3 a grad...