the objective of this experiment was to determine the effect of long-term low-dose administration of lead (pb) on thyroid function in sheep. in this experiment 10 healthy iranian male sheep, aged about oneyear- old were randomly allocated into two equal groups of control (n = 5) and experiment (n = 5). both groups were kept under the same conditions of food and environment. the treatment group ...

2×2-Sudoku (or ShiDoku) is a sized down variant of the usual 3×3-Sudoku puzzle. Its set of constraints contains 56 binary inequalities. It is proven that any maximal redundant set of these binary inequalities has size 16. This is in line with a conjecture about 3×3Sudoku. The result is achieved partly by rigorous proofs, partly by programming in Prolog. The generalization to N×N-Sudoku with N >...

Intervention Patients were allocated to dextroamphetamine sulphate, 15 mg for 28 days then doubled to 30 mg for 56 days {n=47}†; dextroamphetamine sulphate, 30 mg for 28 days and then doubled to 60 mg for 56 days {n=46}†; or to placebo {n=35}†. Patients received dextroamphetamine sulphate sustained release regimen once within 2 hours of awakening, and once 6 hours later. Dosing was supervised i...

with regard to bycatch problem, this is the first study of the shrimp trawl bycatch in different depth variation in hormuzgan coastal waters. samples were collected during shrimp season in october 2011 and november 2012. the study area was divided into two regions: hormuz-keshtisoukhte (56°, 27ʹ e/27°, 07ʹ n) to (56°, 18ʹ e/27°, 06ʹ n) and keshtisoukhte-toola (56°, 18ʹ e/27°, 06ʹ n) to (55°, 58...

We present a novel method of constructing non-obtuse and acute triangulations of planar convex n-gons, improving existing bounds presented in [L. Yuan, Discrete Comput. Geom. 34, 697-706 (2005)] for 6 ≤ n ≤ 11 and 6 ≤ n ≤ 56, respectively.