An algorithm is proposed for the structural optimization of periodic systems in internal (chemical) coordinates. Internal coordinates may include in addition to the usual bond lengths, bond angles, out-of-plane and dihedral angles, various "lattice internal coordinates" such as cell edge lengths, cell angles, cell volume, etc. The coordinate transformations between Cartesian (or fractional) and...

2-Arylpropionic acid (2-APA) nonsteroidal anti-inflammatory drugs are commonly used in racemic mixtures (rac) for clinical use. 2-APA undergoes unidirectional chiral inversion of the in vivo inactive R-enantiomer to the active S-enantiomer. Inflammation causes the reduction of metabolic activities of drug-metabolizing enzymes such as cytochrome P450 (P450) and UDP-glucuronosyltransferase. Howev...

In the present study, 360 male day-old broiler chicks were used to determine the effect of mixed livevaccines of Newcastle disease (ND) and infectious bronchitis (IB) on serum and local antibody responses toIB. Chicks were randomly divided into 12 treatment groups of 3 replicates and reared for 40 days on floorpens. Groups 1 to 5 received mixed ND and IB vaccine. Groups 7 to 11 received IB vacc...

Bismutine, BiH3, is the least stable of the group15 trihydrides. F. Paneth first detected it in minute traces in 1918 using a radiochemical technique involving Bi2Mg3 [1]. The best preparation method seems to be the one proposed by Amberger in 1961, based on the disproportionation of CH3BiH2 at −45 ◦C[̃2]. This relatively complex synthesis has recently been successfully reproduced and allowed to...

the target of this study was to investigate the possibility of mdf productionfrom eucalyptus camaldulensis wood. mdf fibers were produced applying threelevels of steaming time. laboratory mdf boards were produced using thegenerated fibers and different pressing temperature and time. physical andmechanical properties of mdf panels were measured using relevant eu testmethods and were statisticall...

We present an efficient and accurate immersed boundary (IB) finite element (FE) method for numerically solving the incompressible Navier–Stokes equations. Particular emphasis is given to internal flows with complex geometries (blood flow in vasculature system). IB methods are computationally costly flows, mainly due large percentage of grid points that lie outside domain. In this study, we appl...

iB Muamalat Regular Savings has a low-cost savings concept, apart from not being subject to customer administration fees, cash withdrawals are also free of charge and very profitable profit-sharing system. The purpose this study was determine perceptions the system for product at Bank KCP Curup . data collection method used questionnaire on 60 customers who had Curup. analytical is rating scale...