In recent times, an apparent increase in the frequency and intensity of blooms of cyanobacteria (blue-green algae) in the River Murray (Australia) has caused widespread concern. When present in large numbers, they can cause serious problems for domestic, industrial, agricultural and recreational...

Several stochastic models of rainfall occurrence and daily rainfall amount have been applied to data sets, of 18–20 years duration, for 22 islands in the Western Pacific. The models for rainfall occurrence were first- and second-order Markov chains, the truncated negative binomial...

This study empirically estimates import demand functions for (i) manufactured goods, (ii) machinery and manufactured articles and (iii) aggregate imports for Malaysia and discusses the implications of the results. Income and price elasticities of demand are empirically estimated using log-linear...

We consider a parallel implementation of the additive two-level Schwarz domain decomposition technique. The procedure is applied to elliptic problems on general unstructured grids of triangles and tetrahedra. A symmetric, positive-definite system of linear equations results from the...

The present paper examines the stream-tube method in two- and three-dimensional duct flows. The analysis uses the concept of stream-tubes in a mapped computational domain of the physical domain, where streamlines are parallel and straight. The primary unknown of the problem includes the...

In this paper, an analysis for the actual and deeper cause of the finite precision error generation and accumulation in the FAEST-5p and the fast transversal filtering (FTF) algorithm is undertaken, on the basis of a new methodology and practice. In particular, it is proved that, in case where...

This paper analyses international tourism for various countries, the type of data used, and the functional specification of international tourism demand models, in particular, the use of linear vs. log-linear regression models, the use of proxy variables, and the implications of including and...

This paper compares the asymptotic efficiency of a number of two step estimators developed for estimating a static linear regression model with serially correlated errors when some observations are missing. A Monte Carlo simulation is used to illustrate the results in small samples.

In this paper, the behavior patterns of a logistic model with a delay in the feedback path are analyzed. It is shown that these patterns are richer than the ones without delay and include a new behavior, the retarded catastrophe, which is apparently counterintuitive. The mechanisms underlying...