The sixth base and counting

Sequencing the sixth base (5-hydroxymethylcytosine): selective DNA oxidation enables base-pair resolution.

the family of ten-eleven-translocation (TET) oxygenases converts 5mC to 5hmC. Last year, the two more highly oxidized congeners of 5hmC, 5-formylcytosine and 5-carboxycytosine (5fC and 5caC respectively), were also discovered as 5mC TET oxidation products. The race to disentangle the roles that these “new” DNA bases play, both as epigenetic markers and as intermediates in demethylation pathways...

On the Smarandache Lucas base and related counting function

for n ~ 0, Lo = 2, L1 = 1, Fo = 0 and FI = 1. These sequences playa very important role in the studies of the theory and application of mathematics. Therefore, the various properties of Ln and Fn were investigated by many authors. For example, R. L. Duncan [1] and L. Kuipers [2J proved that (logFn) is uniformly distributed mod 1. H.London and R.Finkelstein [3] studied the Fibonacci and Lucas nu...

Probabilistic Counting Algorithms for Data Base Applications

Counting Subwords Occurrences in Base-b Expansions

We count the number of distinct (scattered) subwords occurring in the base-b expansion of the nonnegative integers. More precisely, we consider the sequence (Sb(n))n≥0 counting the number of positive entries on each row of a generalization of the Pascal triangle to binomial coefficients of base-b expansions. By using a convenient tree structure, we provide recurrence relations for (Sb(n))n≥0 le...

the relationship between learners critical thinking ability and their performance in the reading sections of the tofel and ielts test

the study reflected in this thesis aims at finding out relationships between critical thinking (ct), and the reading sections of tofel and ielts tests. the study tries to find any relationships between the ct ability of students and their performance on reading tests of tofel and academic ielts. however, no research has ever been conducted to investigate the relationship between ct and the read...