Two algorithms for learning dfa with membership queries are described. Both of them are based on Kearns and Vazirani’s version of Angluin’s L∗. Our algorithms tied in the third place in the Zulu competition.

Notwithstanding the significant efforts to develop estimators of long-range correlations (LRC) and to compare their performance, no clear consensus exists on what is the best method and under which conditions. In addition, synthetic tests suggest that the performance of LRC estimators varies when using different generators of LRC time series. Here, we compare the performances of four estimators...

A product redesign approach has been developed to facilitate the product modification processes. This approach combines the idea of Function Allocation (FA), Problem Recommendation Driven Mechanism (PRDM) and the Design for Assembly (DFA) methodology to develop an effective redesign approach. The DFA is used to evaluate a product from the viewpoint of assembly and product design. The FA is used...

Using multi-fractal detrended fluctuation analysis (MF-DFA), the scaling features of wind speed time series (WSTS) could be explored. In this paper, we discuss the influence of sub-daily variation, which is a natural feature of wind, in MF-DFA of WSTS. First, the choice of the lower bound of the segment length, a significant parameter of MF-DFA, was studied. The results of expanding the lower b...

Characterizing the stratosphere as a turbulent system, temporal fluctuations often show different correlations for different time scales as well as intermittent behaviour that cannot be captured by a single scaling exponent. In this study, the different scaling laws in the long-term stratospheric variability are studied using multifractal de-trended fluctuation analysis (MF-DFA). The analysis i...

In this paper we describe evaluation and characterization of a novel assay that combines immunomagnetic separation and a fluorescently stained bacteriophage for detection of Escherichia coli O157:H7 in broth. When it was combined with flow cytometry, the fluorescent-bacteriophage assay (FBA) was capable of detecting 10(4) cells/ml. A modified direct epifluorescent-filter technique (DEFT) was em...

It is technically impractical for many clinical laboratories to use the direct immunofluorescence assay for identifying and serogrouping clinical isolates of Legionella. We compared the results obtained with the direct immunofluorescence assay with the results of a simple and less-demanding slide agglutination test for identifying 15 serogroups representing seven Legionella species. The slide a...

Canine rabies is endemic in Nigeria. Some of the dogs slaughtered for human consumption may be infected with rabies virus, thus exposing handlers of raw dog meat to the disease since the virus may be present in the nerves in the meat. A cross-sectional study was designed and a structured questionnaire was designed and administered to a convenience sample of 160 processors and consumers (100 fro...

glomerulonephritis, since then called “Maladie de Berger,” and/or immunoglobulin A (IgA) nephropathy. Using a direct immunofluorescence technique, Jean Berger, a French pathologist, identified the presence of mesangial IgA deposits. This test remains to date the only means to diagnose what has been recognized to be the most common glomerulonephritis. [The SCI indicates that this paper has been ...