It is evident to all those involved in urban water management that three important units need to be considered to assess the performance of an urban drainage system: the sewer, the treatment plant and the receiving water. The sewage transport and treatment system have to be designed and operated with respect to the objectives of the investments made: prevent flooding, ensure hygienic quality in...

This paper investigates the network structure of interbank markets. Using a dataset of interbank exposures in the Netherlands, we corroborate the recent hypothesis that the core periphery model is a ‘stylised fact’ of interbank markets. We find a core of highly connected banks intermediating between periphery banks and pay particular attention to model selection. Our analysis can help improve s...

As part of comprehensive efforts to develop physics-based risk assessment techniques for space systems at NASA, coupled computational fluid and rigid body dynamic simulations were carried out to investigate the flow mechanisms that accelerate tank fragments in bursting pressurized vessels. Simulations of several configurations were compared to analyses based on the industry-standard Baker explo...

The existence of gender differences in student performance on conceptual assessments and their responses to attitudinal assessments has been repeatedly demonstrated. This difference is often present in students’ preinstruction responses and persists in their postinstruction responses. However, one area in which the presence of gender differences has not been extensively explored is undergraduat...

Lawyers make short work of “clinical experience” testimony by defendants and expert witnesses in suicide malpractice cases. Clinical experience, unaided by evidence-based research, can be idiosyncratic, insufficient, uninformed, or just plain wrong when applied to complex, fact-specific suicide cases. Both in the clinical setting and in providing expert witness testimony, clinical experience ca...

Sustainable development, as a concept of controlled development, is a management characteristic. Adaptation to progress is important to achieve sustainability. The research focus here is on developing an evaluation methodology for determining the characteristics of urban open space. A method was designed for use in the comparative analysis of environmental perception evaluation between differen...

Accident and incident investigators play a central role within safety management systems. Their recommendations help to ensure that hazards do not recur. Their reports describe previous hazards that help to inform subsequent risk assessments. Their findings can act as a catalyst for change not only within individual organisations but across entire industries. There is little agreement about the...

In the past, many researchers have analysed queueing models with batch service. In such models, the server typically postpones service until the number of present customers reaches a service threshold, whereupon service is initiated of a batch consisting of several customers. In addition, correlation in the customer arrival process has been studied for many different queueing models. However, c...

Software architecture evaluation methods aim at identifying potential maintainability problems for a given architecture. Several of these methods exist, which typically prescribe the structure of the evaluation process. Often left implicit, however, are the concrete system attributes that need to be studied in order to assess the maintainability of implemented architectures. To determine this s...

An important problem in discrete-event stochastic simulation is the selection of the best system from a finite set of alternatives. There are many techniques for ranking and selection and multiple comparisons discussed in the literature. Most procedures employ classical frequentist approaches, although there has been recent attention to Bayesian methods. In this paper, we compare Bayesian and f...