A year ago a big chunk of Yukos, formerly Russia's main oil company, was forcibly renationalised; then Sibneft, another hitherto efficient oil firm, was bought by Gazprom, which is, well, less efficient.
This finding immediately has attracted a great deal of research interest[2 4], given that it demonstrates a hitherto efficient route to tune the bandgaps of these 2D materials.
Bioelectrocatalytic reduction of O2 catalyzed by trHb-Bs was one of the most efficient hitherto reported for Hbs, with an apparent catalytic rate constant, kcat, of 56 ± 6 s−1.
At the very same moment, the nucleobases – which were hitherto acting solely as efficient UV-protecting units – become the letters of the genetic alphabet.
This fact strongly suggests that, contrary to a hitherto generally suggested notion, an efficient corrosion inhibiting molecule does not require to be a large one, also bearing an extensive number of π-electrons.
Moreover, we evaluated the efficiency in terms of signaling cost of the NeMHIP protocol through analytical modeling, and verified that, with respect to signaling on equal terms of security support, NeMHIP is more efficient than HIP NEMO[4], hitherto the most complete solution that makes use of delegation of signaling rights.
Radiotherapy and chemotherapy have hitherto proven not to be efficient enough for cure (Sheline, 1977; Stenning et al, 1987).
Even Cathay Pacific, one of the most efficient operators in the hitherto booming Asia-Pacific market, issued a profit warning on July 2nd.
We have demonstrated that DGSA (= Database-dependent Gene Selection and Analysis) provides an efficient means to select hitherto uncharacterized genes for further functional analysis.
In 1935, I. M. Vinogradov devised a method for estimating their mean values very much more efficient than the methods available hitherto due to Weyl and van der Corput, and subsequently applied his new estimates to investigate the zero-free region of the Riemann zeta function, in Diophantine approximation, and in Waring?s problem.
We have developed a short and highly efficient synthetic strategy towards the hitherto hardly known 3,5- and 3,6-disubstituted 2,3,4,7-tetrahydro-1H-azepine scaffold via a ring-closing metathesis approach utilizing inexpensive and readily available starting material such as methyl acrylate and allylamine.
