In the title compound, [Ca(NO(3))(C(34)H(32)N(10))]NO(3)·3CH(4)O, the Ca(II) ion is coordinated by six N atoms of the EDTB ligand {EDTB is N,N,N',N'-tetra-kis[(2-benzimidazol-yl)meth-yl]-1,2-ethanediamine} and two O atoms from the nitrate ligand, to form a distorted dodeca-hedral geometry. The crystal packing is stabilized by inter-molecular N-H⋯O, N-H⋯N and O-H⋯O hydrogen bonds, which link the...

Quantitative descriptions of a physical system’s behaviour form the backbone of the scientific method used in the natural sciences. They allow the principled determination of experimental parameters, a clear and unambiguous representation of experiments, and independent replication and verification of experimental results. In mobile robotics to date, quantitative descriptions of robot-environme...

OBJECTIVES This paper describes the development of a short version of the Malaysian Oral Health Impact Profile. METHODS The 45-item OHIP(M) was shortened using a method known as the 'item frequency method'. Here, the two most frequently reported items from each of the seven OHIP(M) subscales were chosen to form the short version, designated as the S-OHIP(M). Field testing was conducted to ass...

Given the inherent dangers associated with racemic pharmaceuticals, exhaustive studies of techniques designed to separate enantiomers have been conducted. This paper reports a brief review of the different physical, chemical, and enzymatic methods used for the enantiomeric separation of rac-ibuprofen. The possible contribution of each technique to the preparation of enantiomerically pure drugs ...

The aim of this study was to develop an ionic liquid (IL) system for the enzymatic resolution of racemic ibuprofen ethyl ester to produce (S)-ibuprofen. Nineteen ILs were selected for use in buffer systems to investigate the effects of ILs as cosolvents for the production of (S)-ibuprofen using thermostable esterase (EST10) from Thermotoga maritima. Analysis of the catalytic efficiency and conf...