Ensemble approaches are learning algorithms that construct a set of classifiers and then classify new instances by combining their predictions. These approaches can outperform single classifiers on wide range of classification problems. In this paper we proposed an extension of the bagging classifier integrating it with feature subset selection. Moreover, we examined the usage of other methods ...

A heat-conditioning treatment of 10 mm at 45°followed by 370 incubation resulted in maximal thermotolerance 8 hr later. The D@of the heat survival curve increased from 4.5 mm (control) to 19.8 mm at 45°.Two heat-conditioning treatments (10 mm at 45°+ 4 hr at 37°+ 15 mm at 45°)resulted in a higher thermotolerance maximum (D@= 26.7 mm) 8 hr after the second • conditioning treatment. In com...

The decision of the embryonic gonad to differentiate as either a testis or an ovary is a critical step in vertebrate development. The molecular basis of this decision has been the focus of much study, particularly over the past decade. Here we contrast the knowledge of early gonadal development and the switch to testis differentiation with the lack of molecular understanding of ovarian developm...

Vitrectomy was performed bilaterally in pigmented rabbits and followed by silicone oil injection in one eye only. Electroretinographic studies were performed preoperatively and at selected postoperative intervals. In the early postoperative period both eyes showed an initial reduction in a and b wave amplitudes, followed by a return to baseline values. The amplitudes were symmetrically and equa...

Binding assays are increasingly used as a screening method for protein kinase inhibitors; however, as yet only a weak correlation with enzymatic activity-based assays has been demonstrated. We show that the correlation between the two types of assays can be improved using more precise screening conditions. Furthermore a marked improvement in the correlation was found by using kinase constructs ...

Obstructive disease of the large coronary arteries is the prominent cause for angina pectoris. However, angina may also occur in the absence of significant coronary atherosclerosis or coronary artery spasm, especially in women. Myocardial ischaemia in these patients is often associated with abnormalities of the coronary microcirculation and may thus represent a manifestation of coronary microva...

In this paper, we discuss some methodological issues associated with research into requirements engineering, and describe the benefits afforded to us by using action research to explore issues associated with requirements elicitation, modelling and validation. FOOM is a requirements engineering method which is designed to facilitate the development of high-quality, requirements-conformant infor...

International comparisons, comparisons within countries, time trends within countries, case–control studies, and animal studies are all consistent with a positive relationship between incidence of breast cancer and fat consumption. 1 Cohort studies are normally considered free of the bias that potentially affect case–control studies, but, in contrast to expectations that a relationship would be...