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BACKGROUND Concerning the risk of antidepressant induced liver injury, it is not clear whether psychiatrists perform a liver function test (LFT) and whether an increase in aminotransferase levels should contraindicate antidepressant treatment. AIM To evaluate LFT availability, the prevalence of LFT abnormalities and the probable cause of an altered LFT in patients with a major depressive epis...

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n0 = min{n ∈ N | f(n) > n + 1}, then the proof of Kahn and Kalai gives n0 ≤ 1325. On the other hand we know only that n0 ≥ 4 (Perkal [7]; Eggleston [3]). It is of interest where n0 lies. The upper bound on n0 was improved to n0 ≤ 946 (Nilli [6]), n0 ≤ 561 (Raigorodski [8]), n0 ≤ 560 (Weißbach [9]), and n0 ≤ 323 (Hinrichs [4]). In fact, we know that f(n) > n + 1 for all n ≥ 323. Here we show tha...

Literary reading has been a topic of inquiry among scholars of literature and educationalists for nearly three quarters of a century (Richards, 1929; Rosenblatt, 1937). Among empirical researchers, in contrast, attention to literature is quite recent, with most studies having been carried out only over the last 20 years. The literary field is fraught with controversy, however. Basic differences...

The number of even 321-avoiding permutations of length n is equal to the number of odd ones if n is even, and exceeds it by the n−1 2 th Catalan number otherwise. We present an involution that proves a refinement of this sign-balance property respecting the length of the longest increasing subsequence of the permutation. In addition, this yields a combinatorial proof of a recent analogous resul...

Congress reveals the results of an electronic prescribing (e-prescribing) pilot project that supports the adoption of new e-prescribing standards. These standards, required by the Medicare Modernization Act of 2003, would help cut both medication errors and health care costs. The pilot project demonstrated that three initial standards are already capable of supporting e-prescribing transactions...

Bivariate generating functions for various subsets of the class of permutations containing no descending sequence of length three or more are determined. The notion of absolute indecomposability of a permutation is introduced, and used in enumerating permutations which have a block structure avoiding 321, and whose blocks also have such structure (recursively). Generalizations of these results ...