Bulky bis(aryl)triazenides: just aspiring amidinates? A structural and spectroscopic study

The triazenide ligand is compared to the isoelectronic formamidinate with regards donor capacity, coordination chemistry and capacity to stabilise reactive main group species.

Synthesis and Catalytic Activity of Rhodium(I) and Iridium(I) 4,5-Dibrominated N-Heterocyclic Carbenes

The synthesis and characterisation of another example of an air-stable carbene is described, in addition to the preparation of rhodium and iridium olefin and carbonyl complexes. The spectroscopic data indicates that these air-stable carbenes do not display reduced sigma-donor capacity of the carbenic centre. The catalytic applications of these carbenes are explored in the hydrosilylation and transfer hydrogenation processes.

Synthesis and Catalytic Activity of Rhodium(I) and Iridium(I) 4,5-Dibrominated N-Heterocyclic Carbenes

The synthesis and characterisation of another example of an air-stable carbene is described, in addition to the preparation of rhodium and iridium olefin and carbonyl complexes. The spectroscopic data indicates that these air-stable carbenes do not display reduced sigma-donor capacity of the carbenic centre. The catalytic applications of these carbenes are explored in the hydrosilylation and transfer hydrogenation processes.

Biochemical and functional modifications in biathlon athletes at medium altitude training / Modificările biochimice și funcționale ale atleților biatloniști după antrenament la altitudine medie

Objective: The aim of our research was to identify physiological and biochemical changes induced by training at medium altitude. Methods: Ten biathlon athletes underwent 28-day training camp at medium altitude in order to improve their aerobic effort, following the living high-base train high-interval train low (Hi-Hi-Lo) protocol. There were investigated three categories of functional and biochemical parameters, targeting the hematological changes (RBC, HCT, HGB), the oxidative (lipoperoxid, free malondialdehyde and total malondialdehyde) and antioxidative balance (the hydrogen donor capacity, ceruloplasmin and uric acid) and the capacity of effort (the maximum aerobic power, the cardiovascular economy in effort, the maximum O2 consumption). Results: All the biochemical and functional evaluated parameters showed significant increases between the pre-training testing and post-training testing (5.13 ± 0.11 vs. 6.50 ± 0.09, p < 0.0001 for RBC; 44.80 ± 1.22 vs. 51.31 ± 2.31, p < 0.0001 for HCT; 15.06 ± 0.33 vs. 17.14 ± 0.25, p < 0.0001 for HGB; 1.32 ± 0.04 vs.1.62 ± 0.01, p < 0.0001 for LPx; 1.61 ± 0.01 vs. 1.73 ± 0.01, p < 0.0001 for free MDA; 2.98 ± 0.08 vs. 3.37 ± 0.03, p < 0.0001 for total MDA; 45.92 ± 0.13 vs. 57.98 ± 0.12, p < 0.0001 for HD; 25.95 ± 0.13 vs. 31.04 ± 0.06, p < 0.0001 for Crp; 3.47 ± 0.03 vs.7.69 ± 0.02, p < 0.0001 for UA; 63.91 ± 1.00 vs. 81.53 ± 1.97, p < 0.0001 for MAP; 33.13 ± 0.57 vs. 57.41 ± 0.63, p < 0.0001 for CVEE; 4190 ± 50.45 vs. 5945 ± 46.48, p < 0.0001 for VO2max). Conclusions: Aerobic effort capacity of biathlon athletes has increased in the post-training period, using Hi-Hi-Lo protocol.

Singularities in the physicochemical properties of spontaneous AOT-BHD unilamellar vesicles in comparison with DOPC vesicles

AOT-BHD vesicles present a bilayer completely different to the traditional DOPC vesicles, with low polarity, high viscosity and more electron donor capacity.