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See detailAcademic writing across languages: multilingual and contrastive approaches in higher education
Huemer, Birgit UL; Deroey, Katrien UL; Lejot, Eve UL

Book published by Böhlau (in press)

In this book we explore how academic writing varies across languages in order to enrich concepts for teaching academic writing in multilingual environments. The contributions focus on teaching approaches ... [more ▼]

In this book we explore how academic writing varies across languages in order to enrich concepts for teaching academic writing in multilingual environments. The contributions focus on teaching approaches, linguistic features and writing practices in multilingual contexts. It aims to discuss how these findings could be applied in order to develop multilingual approaches for teaching academic writing at the university. [less ▲]

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See detailRandom or Evolutionary Search for Object-Oriented Test Suite Generation?
Shamshiri; Rojas; Gazzola et al

in Software Testing, Verification & Reliability (in press)

An important aim in software testing is constructing a test suite with high structural code coverage – that is, ensuring that most if not all of the code under test has been executed by the test cases ... [more ▼]

An important aim in software testing is constructing a test suite with high structural code coverage – that is, ensuring that most if not all of the code under test has been executed by the test cases comprising the test suite. Several search-based techniques have proved successful at automatically generating tests that achieve high coverage. However, despite the well-established arguments behind using evolutionary search algorithms (e.g., genetic algorithms) in preference to random search, it remains an open question whether the benefits can actually be observed in practice when generating unit test suites for object-oriented classes. In this paper, we report an empirical study on the effects of using evolutionary algorithms (including a genetic algorithm and chemical reaction optimization) to generate test suites, compared with generating test suites incrementally with random search. We apply the EVOSUITE unit test suite generator to 1,000 classes randomly selected from the SF110 corpus of open source projects. Surprisingly, the results show that the difference is much smaller than one might expect: While evolutionary search covers more branches of the type where standard fitness functions provide guidance, we observed that, in practice, the vast majority of branches do not provide any guidance to the search. These results suggest that, although evolutionary algorithms are more effective at covering complex branches, a random search may suffice to achieve high coverage of most object-oriented classes. [less ▲]

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See detailThe role of nutrition and literacy on the cognitive functioning of elderly poor individuals
Leist, Anja UL; Novella, Rafael; Olivera, Javier

in Journal of Aging & Social Policy (in press)

Maintaining cognitive function is a prerequisite of living independently, which is a highly valued component in older individuals’ wellbeing. In this paper we assess the role of early-life and later-life ... [more ▼]

Maintaining cognitive function is a prerequisite of living independently, which is a highly valued component in older individuals’ wellbeing. In this paper we assess the role of early-life and later-life nutritional status, education and literacy on the cognitive functioning of older adults living in poverty in Peru. We exploit the baseline sample of the Peruvian non-contributory pension program Pension 65 and find that current nutritional status and literacy are strongly associated with cognitive functioning for poor older adults. In a context of rising popularity of non-contributory pension programs around the world, our study intends to contribute to the discussion of designing accompanying measures to the pension transfer, such as adult literacy programs and monitoring of adequate nutrition of older adults. [less ▲]

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See detailSpina Bifida
Pit-Ten Cate, Ineke UL

in Llewellyn, C; Ayers, S; McManus, C (Eds.) et al Cambridge Handbook of Psychology, Health, & Medicine (in press)

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See detailDesigning Sustainable Technologies, Products and Policies
Benetto, Enrico; Gericke, Kilian UL; Guiton, Mélanie

Book published by Springer (in press)

This book provides insight into the implementation of Life Cycle approaches along the entire business value chain, supporting environmental, social and economic sustainability related to the development ... [more ▼]

This book provides insight into the implementation of Life Cycle approaches along the entire business value chain, supporting environmental, social and economic sustainability related to the development of industrial technologies, products, services and policies; and the development and management of smart agricultural systems, smart mobility systems, urban infrastructures and energy for the built environment. The book is based on papers presented at the 8th International Life Cycle Management Conference that took place from September 3-6, 2017 in Luxembourg, and which was organized by the Luxembourg Institute of Science and Technology (LIST) and the University of Luxembourg in the framework of the LCM Conference Series. [less ▲]

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See detailPro-Poorness Orderings
D'Ambrosio, Conchita UL; Chakravarty, Satya; Chattopadhyay, Nachiketa

in Review of Income and Wealth (in press)

An indicator of pro-poorness of a growth profile associated with a distribution of income is a measure of the extent to which growth is biased towards the poor. This paper proposes a general approach to ... [more ▼]

An indicator of pro-poorness of a growth profile associated with a distribution of income is a measure of the extent to which growth is biased towards the poor. This paper proposes a general approach to pro-poorness, called the progressive sequential averaging principle (PSA), relaxing the requirement of rank preservation due to growth. An endogenous benchmark for evaluating the growth of poor comes out naturally from this principle. A dominance relation on the basis of the above approach for a class of growth profiles is introduced through a simple device, called the PSA curve and its properties are examined in relation to the standard dominances in terms of the generalized Lorenz curve and the inverse generalized Lorenz curve. The paper concludes with an application to evaluate growth profiles experienced by the United States between 2001-2007 and 2007-2013. [less ▲]

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See detailHow effective are mutation testing tools? An empirical analysis of Java mutation testing tools with manual analysis and real faults
Kintis, Marinos UL; Papadakis, Mike UL; Papadopoulos, Andreas et al

in Empirical Software Engineering (in press)

Mutation analysis is a well-studied, fault-based testing technique. It requires testers to design tests based on a set of artificial defects. The defects help in performing testing activities by measuring ... [more ▼]

Mutation analysis is a well-studied, fault-based testing technique. It requires testers to design tests based on a set of artificial defects. The defects help in performing testing activities by measuring the ratio that is revealed by the candidate tests. Unfortunately, applying mutation to real-world programs requires automated tools due to the vast number of defects involved. In such a case, the effectiveness of the method strongly depends on the peculiarities of the employed tools. Thus, when using automated tools, their implementation inadequacies can lead to inaccurate results. To deal with this issue, we cross-evaluate four mutation testing tools for Java, namely PIT, muJava, Major and the research version of PIT, PITRV, with respect to their fault-detection capabilities. We investigate the strengths of the tools based on: a) a set of real faults and b) manual analysis of the mutants they introduce. We find that there are large differences between the tools’ effectiveness and demonstrate that no tool is able to subsume the others. We also provide results indicating the application cost of the method. Overall, we find that PITRV achieves the best results. In particular, PITRV outperforms the other tools by finding 6% more faults than the other tools combined. [less ▲]

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See detail“Luxemburger Standarddeutsch”. On the future of the German language in Luxembourg
Sieburg, Heinz UL

in Muhr, Rudolf; Meisnitzer, Benjamin (Eds.) Pluricentric Languages and Non-Dominant Varieties Worldwide: New pluricentric languages-old problems (in press)

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See detailIslamic banking development and access to credit
Leon, Florian UL; Weill, Laurent

in Pacific-Basin Finance Journal (in press)

The recent expansion of Islamic banks raises questions on its economic implications. The aim of this paper is to investigate the impact of Islamic banking development on access to credit. We combine data ... [more ▼]

The recent expansion of Islamic banks raises questions on its economic implications. The aim of this paper is to investigate the impact of Islamic banking development on access to credit. We combine data from a unique hand-collected database that covers Islamic banks with firm-level data covering developing and emerging countries over the period of 2006 to 2009. We find that Islamic banking development has overall no impact on credit constraints, while banking development and conventional banking development alleviate obstacles to financing. However Islamic banking development exerts a positive impact on access to credit when conventional banking development is low. Hence we support the view that Islamic banking does not overall alleviate obstacles to financing, but it can act as substitute to conventional banking. [less ▲]

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See detailInequality in old age cognition across the world
Olivera, Javier; Andreoli, Francesco; Leist, Anja UL et al

in Economics and Human Biology (in press)

Although cohort and country differences in average cognitive levels are well established, identifying the degree and determinants of inequalities in old age cognitive functioning could guide public health ... [more ▼]

Although cohort and country differences in average cognitive levels are well established, identifying the degree and determinants of inequalities in old age cognitive functioning could guide public health and policymaking efforts. We use all publicly available and representative old age surveys with comparable information to assess inequalities of cognitive functioning in six distinctive age groups of 29 countries. We document that cognitive inequalities in old age are largely determined by earlier educational inequalities as well as gender differential survival rates. For example, a one percentage point increase in the Gini index of past education is associated with an increase of 0.45 percentage points in the Gini index of delayed recall and 0.23 percentage points in the Gini of immediate recall. Results are robust to a variety of alternative explanations and persist even after controlling for gender-related biases in survival rates. Furthermore, we find evidence that unequal opportunities for education -captured by differences in parental background and gender- also have significant effects on inequality of old age cognition. [less ▲]

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See detailEfficacy of metacognitive therapy in improving mental health: A meta-analysis of single-case studies
Rochat, Lucien; Manolov, Rumen; Billieux, Joël UL

in Journal of Clinical Psychology (in press)

Context. Metacognitive therapy and one of its treatment components, the attention training technique are increasingly being delivered to improve mental health. Objective. To examine the efficacy of ... [more ▼]

Context. Metacognitive therapy and one of its treatment components, the attention training technique are increasingly being delivered to improve mental health. Objective. To examine the efficacy of metacognitive therapy and/or attention training technique on mental health outcomes from single-case studies. Methods. Fourteen studies (53 patients) were included. The d-statistic for multiple baseline data and the percentage change index were used to compute the effect sizes. Results. Metacognitive therapy has a large effect on depression, anxiety, other psychopathological symptoms, and all outcomes together. Effect sizes were significantly moderated by the number of sessions, the severity and duration of symptoms, and patient gender, but not by study quality or attention training technique when used as a stand-alone treatment. At the follow-up, 77.36% of the individuals were considered recovered or had maintained improvement. Conclusion. Metacognitive therapy and attention training technique strongly contribute to improving mental health outcomes. This study effectively informs evidence-based practice in the clinical milieu. [less ▲]

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See detailFurther exploration of the SUPPS-P Impulsive Behavior Scale’s factor structure: Evidence from a large Hungarian sample
Zsila, Ágnes; Bőthe, Beáta; Demetrovics, Zsolt et al

in Current Psychology (in press)

Background: Impulsivity is a multidimensional construct playing a pervasive role in psychiatry and neuropsychology. Lynam et al. (2006) have developed the 59-item UPPS-P Impulsive Behavior Scale, which ... [more ▼]

Background: Impulsivity is a multidimensional construct playing a pervasive role in psychiatry and neuropsychology. Lynam et al. (2006) have developed the 59-item UPPS-P Impulsive Behavior Scale, which assesses five distinct impulsivity dimensions: positive urgency, negative urgency, lack of perseverance, lack of premeditation, and sensation seeking. The short, 20-item version of the UPPS-P (SUPPS-P; Billieux et al. 2012) has been developed and adapted into several languages, including English, French, Italian, Spanish, and Arabic. The aim of the present study was to test four theoretical models of the SUPPS-P in a large sample of Hungarian adults. Methods: A total of 15,703 participants (64.76% male; Mage = 33.42 years, SD = 11.06) completed the SUPPS-P using an online questionnaire. Results: Confirmatory factor analyses corroborated the first-order five-factor model of impulsivity and a hierarchical model representing three higher-order constructs (urgency, lack of conscientiousness, sensation seeking), whereas the one-factor and three-factor model were not supported. The factor structure of the SUPPS-P preserved the original, theory-driven structure of the UPPS-P model and this instrument demonstrated good internal consistency. Hypersexual behavior consequences were positively associated with most SUPPS-P components, thus criterion validity was also supported. Conclusion: The SUPPS-P had strong psychometric properties that reflected the theoretical structure of the original UPPS-P model, thus it constitutes a theoretically grounded and time saving multidimensional instrument for assessing impulsivity. [less ▲]

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See detailAn Investigation of Compression Techniques to Speed up Mutation Testing
Zhu; Panichella, Annibale UL; Zaidman, Andy

in 11th IEEE Conference on Software Testing, Validation and Verification, 2018 (in press)

Mutation testing is widely considered as a high-end test coverage criterion due to the vast number of mutants it generates. Although many efforts have been made to reduce the computational cost of ... [more ▼]

Mutation testing is widely considered as a high-end test coverage criterion due to the vast number of mutants it generates. Although many efforts have been made to reduce the computational cost of mutation testing, in practice, the scalability issue remains. In this paper, we explore whether we can use compression techniques to improve the efficiency of strong mutation based on weak mutation information. Our investigation is centred around six mutation compression strategies that we have devised. More specifically, we adopt overlapped grouping and Formal Concept Analysis (FCA) to cluster mutants and test cases based on the reachability (code covergae) and necessity (weak mutation) conditions. Moreover, we leverage mutation knowledge (mutation locations and mutation operator types) during compression. To evaluate our method, we conducted a study on 20 open source Java projects using manually written tests. We also compare our method with pure random sampling and weak mutation. The overall results show that mutant compression techniques are a better choice than random sampling and weak mutation in practice: they can effectively speed up strong mutation 6.3 to 94.3 times with an accuracy of >90%. [less ▲]

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See detailEnvironmental and sustainability education in the Benelux countries: Research, policy and practices at the intersection of education and societal transformation
Van Poeck, Katrien; König, Ariane UL; Wals, Arjen E.J.

in Environmental Education Research (in press), (Special Issue),

As an introductory article of a Special Issue on Environmental and Sustainability Education (ESE) in the Benelux region, this paper provides an overview of ESE research, policy and practice in Belgium ... [more ▼]

As an introductory article of a Special Issue on Environmental and Sustainability Education (ESE) in the Benelux region, this paper provides an overview of ESE research, policy and practice in Belgium, The Netherlands and Luxembourg. It discusses the different contributions in this collection with regard to how the central theme of this issue, the relation between education and societal transformation, is approached in each paper. The main characteristics of the ESE research fields in the Benelux are described in general terms, and placed within the context of how ESE policy and practice are organised in these countries. Next, different conceptualisations of the relation between educational and political spaces reflected in the collection are discussed and the varied contributions to this issue are positioned in relation to three distinguished traditions of approaching the place of democracy in ESE. The authors conclude with commenting on how this relates to different approaches to the research-policy-practice interface. [less ▲]

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See detailConflicting temporalities of social and environmental change
Lockie, Stewart; Wong, Catherine UL

in Boström, M.; Davidson, D. (Eds.) Environment and Society: Concepts and Challenges. (in press)

This chapter explores how time and temporality – that is, the rhythms and tempos of social and environmental change – have been considered in social theory before going on to explore the conceptual ... [more ▼]

This chapter explores how time and temporality – that is, the rhythms and tempos of social and environmental change – have been considered in social theory before going on to explore the conceptual frameworks and practices through which policy-makers seek to influence temporal processes in the specific context of climate change policy. The chapter highlights conflict between the temporalities of climate change and the temporalities of politics, as well as conflict between the temporalities of competing political and decision-making processes. While policy-makers advocate strategies to depoliticize climate policy in response to these conflicts, the chapter argues this is neither possible nor desirable. Instead, it advocates more democratic and deliberative approaches to the challenge of synchronizing ever more visible ecological temporalities with the multiple temporalities of the social. [less ▲]

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See detailEnvironmental and Sustainability Education (ESE) in the Benelux region
Van Poeck, Katrien; Wals, Arjen E.J.; König, Ariane UL

in Environmental Education Research (in press)

Detailed reference viewed: 15 (3 UL)