As part of an educational exercise designed to introduce school students the technique single-crystal X-ray diffraction and enhance their understanding primary secondary bonding, a group nine was given opportunity prepare new compounds solve refine data collected on crystalline materials they had prepared. Their investigation alkali metal salts 4-hydroxybenzoic acid (H 2 hba) yielded structures...

Let D ={d1, d2, ...dD} be a given set of D string documents of total length n, our task is to index D, such that the k most relevant documents for an online query pattern P of length p can be retrieved efficiently. We propose an index of size |CSA|+ n logD(2 + o(1)) bits and O(ts(p)+k log log n+poly log log n) query time for the basic relevance metric term-frequency, where |CSA| is the size (in...

In the title coordination polymer, {[Sm(2)(C(4)H(2)O(4))(3)(H(2)O)(6)]·6H(2)O}(n), the Sm(III) ion is nine-coordinated by four O atoms from three different maleate ligands, two O atoms from one fumarate ligand and three O atoms from three water mol-ecules. The fumarate ligand lies on an inversion center. Adjacent Sm(III) ions are bridged by the maleate and fumarate ligands, forming a layer para...

Internet supercomputing is an approach to solving partitionable, computation-intensive problems by harnessing the power of a vast number of interconnected computers. This paper presents a new algorithm for the problem of using network supercomputing to perform a large collection of independent tasks, while dealing with undependable processors. The adversary may cause the processors to return bo...

background: adult worms of orientobilharzia turkestanicum live in the portal veins, or intestinal veins of cattle, sheep, goat and many other mammals caus-ing orientobilharziasis. orientobilharziasis causes significant economic losses to livestock industry of iran. however, there is limited information about genotypes of o. turkestanicum in iran. methods: in this study, 30 isolates of o. turkes...

a total of 60 neck skin swab samples were taken from 12 different broiler flocks after the chilling stage of processing at a commercial broiler slughtering facility in mashhad. the presence of salmonella was assessed by conventional culture method and confirmed by using poly o and poly h antiserum in serotyping. pcr amplification of inva gene as a specific method for detection of salmonella was...

The rational formulation of Pickering double emulsions is described using a judicious combination of hydrophilic and hydrophobic block copolymer worms as highly anisotropic emulsifiers. More specifically, RAFT dispersion polymerization was utilized to prepare poly(lauryl methacrylate)-poly(benzyl methacrylate) worms at 20% w/w solids in n-dodecane and poly(glycerol monomethacrylate)-poly(2-hydr...