A new manganese(II) complex containing p-hydroxybenzoate and caffeine ligands, namely [Mn(OH-C6H4COO)2(H2O)4].2(C8H10N4O2).8H2O has been prepared. The synthesized complex has been characterized by elemental analyses, FT-IR spectroscopy, X-ray crystallography, and m...

In this study, we synthesis one-dimensional (1D) manganese(III) Schiff base coordination polymer [Mn(Brsalophen)(μ1,3-N3)]n by reaction of MnCl2·6H2O and tetradentate Schiff base ligand Brsalophen at the presence of NaN3 in methanol and characterized by elemental analyses (CHN) and FT-IR spectroscopy. It was used as a new precurs...

Nearest Neighbor (NN) searching is a challenging problem in data management and has been widely studied in data mining, pattern recognition and computational geometry. The goal of NN searching is efficiently reporting the nearest data to a given object as a query. In most of the studies both the data and query are assumed to be precise, however, due to the real applications of NN searching, suc...

purpose : the objective of this study was to investigate the total antioxidant status (tas) and dna damage markers of serum and aqueous humor in patients with pseudoexfoliation (pex) syndrome. methods : twenty-seven cataract patients with pex and twenty-seven without pex syndrome were included in the study and groups were matched for age and gender. patients had no elevated intraocular pressure...

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though it will turn out in the end that there are a few interesting things to say about the cases (p, q) = (10, 2) and (9, 1), as well. 1. The Octonions. Let O denote the ring of octonions. Elements of O will be denoted by bold letters, such as x, y, etc. Thus, O is the unique R-algebra of dimension 8 with unit 1 ∈ O endowed with a positive definite inner product 〈, 〉 satisfying 〈xy,xy〉 = 〈x,x〉...

We consider a set X of alternatives. Alternatives are mutually exclusive in the sense that one cannot choose two distinct alternatives at the same time. We also take the set of feasible alternatives exhaustive so that a player’s choices will always be defined. Note that this is a matter of modeling. For instance, if we have options Coffee and Tea, we define alternatives as C = Coffee but no Tea...

We report measurements and analyses of resistivity, thermopower and thermal conductivity of polycrystalline samples of perovskite LaRh(1-x)Ni(x)O(3). The thermopower is found to be large at 800 K (185 µV K(-1) for x = 0.3), which is ascribed to the high-temperature stability of the low-spin state of Rh(3+)/Rh(4+) ions. This clearly contrasts with the thermopower of the isostructural oxide LaCoO...