Using NMR, we measure the proton chemical shift delta, of supercooled nanoconfined water in the temperature range 195 K < T < 350 K. Because delta is directly connected to the magnetic shielding tensor, we discuss the data in terms of the local hydrogen bond geometry and order. We argue that the derivative -( partial differential ln delta/ partial differentialT)(P) should behave roughly as the ...

Some biosamples obtained from biobanks may go through thawing before processing. We aim to evaluate the effects of thawing at room temperature for different time periods on gene expression analysis. A time course study with four time points was conducted to investigate the expression profiling on 10 thawed normal mice renal tissue samples through Affymetrix GeneChip mouse gene 2.0 st array. Mic...

tected, as it were, from another crossing over. This relation is illustrated in the diagram (fig. 7). If crossing over occurs at some point between two pairs of factors a and b indicated on the diagram, the next crossing over point of the chromosome would, if it occurred at all, lie at some distance away, rather than near by. This possibility can be tested in a case where several known points a...

It is well known that the (−1)-evaluation of the enumerator polynomials of permutations (resp. derangements) by the number of excedances gives rise to tangent numbers (resp. secant numbers). Recently, two distinct q-analogues of the latter result have been discovered by Foata and Han, and Josuat-Vergès, respectively. In this paper, we will prove some general continued fractions expansions formu...

Several recombination operators have been proposed in evolutionary computation. Standard procedures include one-point, two-point, and uniform crossover. Little attention, however, has been given to a recombination operator that preceded each of these, which was offered in 1957 by Alex Fraser. Fraser’s recombination assigns a variable probability for crossing over between two solutions at each l...

Water is hypothesized to have a low temperature phase transition line which separates a high density water at high temperatures from a low density water at low temperatures. This negatively sloped first order liquid-liquid phase coexistence line terminates at a critical point known as the liquid-liquid critical point. This critical point is hypothesized to exist in a deeply supercooled region o...

More innovative test methods may measure language learners’ test performance more accurately, contributing to much fairer decisions. This study examined Iranian language learners’ performance on cloze-elide test as an innovative, integrative test method. It specifically focused on investigating whether personality types correlated with their performance and whether personality types could predi...

The multi-class metric problem in nearest neighbour dis-21 nearest neighbors than we achieved. Friedman (1994) proposes a number of techniques for exible metric nearest neighbor classiication. These techniques use a recursive partitioning style strategy to adaptively shrink and shape rectangular neighborhoods around the test point. Friedman also uses derived variables in the process, including ...

in this article cloud-point extraction (cpe) was used with chelating agent to extract uranium from aqueous solutions. the methodology used is based on the formation of metal complexes soluble in a micellar phase of surfactant. the metal ions complexes are then extracted into the surfactant-rich phase at a temperature above the cloud-point temperature. the effect of type of surfactants and ligan...