The work is on computer programming language solution to a transportation problem involving concave cost function. Two languages; Wolfram Mathematica and Anaconda Python tools were employed in this study effectively solve four real life examples from published works. results the languages yielded an optimal value of N253,000 with as z12 = 13, z22 5, z23 8, z31 11 z33 4 first example remaining t...

Aim/purpose – The main objective of this research is to investigate the relationship between service quality and customer loyalty moderating effect positive word- -of-mouth on in hospitality sector, North Central Nigeria. Design/methodology/approach adopted a quantitative technique. Data were collected through survey technique Statistical Package for Social Science (SPSS) version 25.0 was used ...

One of lit" JJl<>:>l i"flu"ntial f,dU'l""'od, ,, for lite "tudy of pe'''''plion has been James J. Gibson's ecological approach. This approach is noi a theory, but a melatheory, of ho ..... we perceive and understand the \\TOrld around us through our senses. As a melalhoory it dissolves old problems and creatl'S new ones, fostering neW ways 10 think about perception and creating 00 ..... antinom...

Purpose To compare corneal aberrations in former preterm infants to that of full-term infants. Methods A prospective cross-sectional study was carried out measuring the corneal shape with Scheimpflug imaging in former preterm infants of gestational age (GA) ≤32 weeks and full-term infants with GA ≥37 weeks now being aged between 4 to 10 years. The main outcome measures were corneal aberration...

A Different Look at Lenin’s Legacy: Trust, Risk, Fairness and Cooperativeness in the Two Germanies What are the long-term effects of Communism on economically relevant notions such as social trust? To answer this question, we use the reunification of Germany as a natural experiment and study the post-reunification trajectory of convergence with regard to individuals’ trust and risk, as well as ...

We note that the Chinese remainder theorem implies that this group is isomorphic with the cylic group of order 30, Z30. 31 is prime so the only abelian group of order 31 is Z31. 32 = 2. So there are many possibilities corresponding to all of the ways we can write m1 +m2 + ...+mr = 5 with m1 ≥ m2 ≥ ... ≥ mr. The solutions are 5 = 5 which corresponds to Z32, 4 ≥ 1 giving Z16 ×Z2, 3 ≥ 2 giving Z8 ...

PURPOSE Corneal collagen cross-linking (CXL) is a treatment strategy used in keratoconic eyes. Evaluation of long-term changes of higher-order aberrations (HOAs) after CXL is useful in understanding the efficacy of this procedure in improving optical, refractive, and visual acuity. This study aims to investigate the long-term effect of CXL on ocular HOA in patients with progressive keratoconus ...

The purpose of the present study was to investigate the effect of the travel distance of tourists on the demand for domestic tourism in Mashhad. Data used in this research was cross-sectional which includes 1388 domestic tourist families who stayed for at least one night in Mashhad City in 2005. The sample was selected using a randomized stratified sampling method and the data was gathered by a...

We consider winding conserving four point functions in the SL(2, R) WZW model for states in arbitrary spectral flow sectors. We compute the leading order contribution to the expansion of the amplitudes in powers of the cross ratio of the four points on the worldsheet, both in the m− and x−basis, with at least one state in the spectral flow image of the highest weight discrete representation. We...