We consider a data set with missing observations but known auxiliaries for the sample and develop a real donor imputation. For each unit with missing observations we construct a distribution over a set of possible donors. We want the expectation (or distribution) to be chosen so that the expectation (or distribution) of the imputed values should equal the distribution of the units’ true values....

This paper discusses whether there are elements in spoken Sinhala that can be appropriately labeled auxiliary verbs, adopting the framework of grammaticalization theory (Hopper and Traugott 1993). While auxiliaries are thought of as a nearly universal cross-linguistic category (Steele 1978), the term is not mentioned in standard works on Sinhala (Gair and Paolillo 1997, Gair 1998). On the basis...

the aim of this study is investigating the transport mechanism of ibuprofen chiral isomers inside singlewall carbon nano tube (swcnt) using mathematical modeling. to achieve this goal, molecular dynamicssimulation has been performed to evaluate the interactions of ibuprofen isomers with swcnt in an aqueoussolution. results show that both chiral forms of ibuprofen molecules enter and remain insi...

The aim of this study is investigating the transport mechanism of ibuprofen chiral isomers inside single wall carbon nano tube (SWCNT) using mathematical modeling. To achieve this goal, molecular dynamics simulation has been performed to evaluate the interactions of ibuprofen isomers with SWCNT in an aqueous solution. Results show that both chiral forms of ibuprofen molecules enter and remain i...

background: conjunctivitis is the inflammation of the conjunctiva and has 4 main causes-viruses, bacteria, allergens, and irritants. among these, bacterial conjunctivitis is most common and is contagious, especially when the dentist is working with the infected person, and that person spreads the same to the other patient. methods: a pretested questionnaire survey was conducted among 152 subjec...

Carbon nanotubes (CNTs) are specific structures with valuable characteristics. In general, the structure of each nanotube is defined by a unique chiral vector. In this paper, different structures of short single-walled CNTs are simulated and their mechanical properties are determined using finite element method. For this aim, a simple algorithm is presented which is able to model the geometry o...

This paper provides a semantic analysis of restrictions on quantification into doxastic modals uncovered by von Fintel and Iatridou (2003). The restrictions are made to follow from the architecture of a new theory of semantic interpretation, deriving from an asymmetry in the introduction of doxastic and non-doxastic modal bases. The analysis can be seen as a concrete extension of Kratzer (1991)...

the high performance liquid chromatography (hplc) enantioseparation of four β-blocking agents metoprolol, bisoprolol, propranolol and atenolol was performed on amylose tris-(3,5-dimethylphenylcarbamate) chiral stationary phase using n-hexane-ethanol-diethylamine (dea) as the mobile phase and related chiral recognition mechanisms were discussed. enantiomeric separation of the fourβ-blockers was ...

Highly enantiomerically enriched (h-arene)tricarbonylchromium(0) complexes whose chirality originates from the 1,2disubstitution pattern of the arene and the coordination of the metal to one enantiotopic face of the arene are powerful chirons in asymmetric synthesis. Robust, planar chiral arene complexes also increasingly find application as chiral ligands in asymmetric catalysis. Enantiomerica...