he pace of change in communication technologies during the previous decade has made the concept of literacy a moving target (Leu, 2000). One of the most significant changes is the capacity of online texts to engage readers in literal rather than metaphorical interaction (Reinking, 2001). Although traditional theories of reading recognize the complex character of literacy (e.g., Rosenblatt, 1994...

Self-similarity and operator self-similarity. An R-valued signal {Y (t)} is said to be operator self-similar (o.s.s) when it satisfies the scaling relation {Y (at)}t∈R fdd = {aY (t)}t∈R, a > 0, where fdd denotes the finite dimensional distributions, H is called the Hurst matrix, and a is given by the matrix exponential ∑∞ k=0 log(a) H k! . O.s.s processes naturally generalize the univariate sel...

As is well known, in 1935 the famous Soviet writer Aleksey Nikolaevich Tolstoy (1883–1945) wrote fairy tale Zolotoj klyuchik, ili Priklyucheniya Buratino (The Little Golden Key, or Adventures of Buratino) inspired by Collodi’s Pinocchio (1883), that he read and loved some years earlier. Considering substantial relationships between two works, present paper aims at analysing them from main point...

Regadenoson is currently the most widely used pharmacologic stress agent for myocardial perfusion imaging (MPI) with millions of doses administered annually in the US. In November 2013, the US Food and Drug Administration (FDA) issued a Drug Safety Communication warning health care professionals of the rare but serious risk of heart attack and death with use of either regadenoson or adenosine. ...

Given a class of centered Gaussian random fields {Xh(s), s ∈ R, h ∈ (0, 1]}, define the rescaled fields {Zh(t) = Xh(ht), t ∈ M}, where M is a compact Riemannian manifold. Under the assumption that the fields Zh(t) satisfy a local stationary condition, we study the limit behavior of the extreme values of these rescaled Gaussian random fields, as h tends to zero. Our main result can be considered...

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