Rotational motion in LiBH4/LiI solid solutions.

We investigated the localized rotational diffusion of the (BH(4))(-) anions in LiBH(4)/LiI solid solutions by means of quasielastic and inelastic neutron scattering. The (BH(4))(-) motions are thermally activated and characterized by activation energies in the order of 40 meV. Typical dwell times between jumps are in the picosecond range at temperatures of about 200 K.

Safety and efficacy of insulin detemir basal-bolus therapy in type 1 diabetes patients: 14-week data from the European cohort of the PREDICTIVE study.

Objective: PREDICTIVE is a multi-national, prospective, observational study, assessing the safety and efficacy of insulin detemir in patients with diabetes.

Research Design And Methods: The European cohort includes 20,531 patients with diabetes (7420 type 1) from 11 countries. A subgroup of 4782 type 1 patients were transferred from a basal-bolus regimen with NPH insulin (n = 3117) or insulin glargine (n = 1665) to insulin detemir basal-bolus therapy; or from a human insulin basal-bolus regimen (n = 570) to insulin detemir/insulin aspart (part of the pre-study NPH group).

Low-light-induced formation of semicrystalline photosystem II arrays in higher plant chloroplasts.

Remodeling of photosynthetic machinery induced by growing spinach plants under low light intensities reveals an up-regulation of light-harvesting complexes and down-regulation of photosystem II and cytochrome b6f complexes in intact thylakoids and isolated grana membranes. The antenna size of PSII increased by 40-60% as estimated by fluorescence induction and LHCII/PSII stoichiometry. These low-light-induced changes in the protein composition were accompanied by the formation of ordered particle arrays in the exoplasmic fracture face in grana thylakoids detected by freeze-fracture electron microscopy.