With improvements in methodology and instrumentation, luminescence dating is becoming a much more useful chronometric tool in archaeology. Procedures for dating ceramics are relatively routine and their accuracy has been demonstrated in a number of studies. Research is aimed at applying ceramic dating in situations where other methods lack the direct dating ability of luminescence to resolve ch...

The redox couple between ascorbic acid (vitamin C) oxidation and reduction of the semiquinoid form of p-phenylenediamine (PPDA) is the basis of a new chronometric assay of vitamin C. Commercial horseradish peroxidase or citrus peroxidase isolated from seeds catalyzes the hydroperoxidation of PPDA through a re versible semiquinoid form to a colored condensa tion product. Ascorbic acid interrupts...

Chronometric studies of language and memory processing typically emphasize changes in mean response time (RT) performance across conditions. However, changes in mean performance (or the lack thereof) may reflect distinct patterns at the level of underlying RT distributions. In seven experiments, RT distributional analyses were used to better understand how distributions change across related an...

The pulsed-field gel electrophoresis (PFGE) pattern of SmaI digests of 29 strains of Lactococcus lactis subsp. lactis and subsp. cremoris were determined. Unrelated strains yielded markedly different patterns of digestion products. Bacteriophage-resistant derivatives of four strains, generated by a method analogous to that used regularly in some cheese factories, yielded patterns that were iden...

We show that a recently introduced Lax pair of the Sawada-Kotera equation is nota new one but is trivially related to the known old Lax pair. Using the so-called trivialcompositions of the old Lax pairs with a differentially constrained arbitrary operators,we give some examples of trivial Lax pairs of KdV and Sawada-Kotera equations.

the present study, on the one hand, attempted to investigate the strategies applied in dispreferred responses by iranian university students of english and the extent to which pragmatic transfer could occur.  on the other hand, the study aimed to probe into the association between dispreferred organization and turn-shape. to this end, 31 relevant naturally occurring conversations, totaling 120 ...

in searching a market-neutral arbitrage strategy in forex market, we took a portfolio of three major currency pairs, eur-usd, usd-jpy, and eur-jpy. there are eight approaches, different cases of short and long positions; for example buying 1st and selling two others, etc. historical daily fx rates were gathered since january 1990 until february 2011. monthly covariances between daily growth rat...

The timing of networked brain activity subserving motion driven attention in humans is currently unclear. Functional MRI (fMRI)-neuronavigated chronometric transcranial magnetic stimulation (TMS) was used to investigate critical times of parietal cortex involvement in motion driven attention. In particular, we were interested in the relative critical times for two intraparietal sulcus (IPS) sit...