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See detailExact confidence intervals for the Hurst parameter of a fractional Brownian motion
Breton, Jean-Christophe; Nourdin, Ivan UL; Peccati, Giovanni UL

in Electronic Journal of Statistics (2009), 3

Detailed reference viewed: 106 (2 UL)
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See detailExact fluctuation theorem without ensemble quantities
Bulnes Cuetara, Gregory UL; Esposito, Massimiliano UL; Imparato, Alberto

in Physical Review. E : Statistical, Nonlinear, and Soft Matter Physics (2014), 1402

Evaluating the entropy production (EP) along a stochastic trajectory requires the knowledge of the system probability distribution, an ensemble quantity notoriously difficult to measure. In this letter ... [more ▼]

Evaluating the entropy production (EP) along a stochastic trajectory requires the knowledge of the system probability distribution, an ensemble quantity notoriously difficult to measure. In this letter, we show that the EP of nonautonomous systems in contact with multiple reservoirs can be expressed solely in terms of physical quantities measurable at the single trajectory level with a suitable preparation of the initial condition. As a result, we identify universal energy and particle fluctuation relations valid for any measurement time. We apply our findings to an electronic junction model which may be used to verify our prediction experimentally. [less ▲]

Detailed reference viewed: 164 (13 UL)
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See detailExact rate of convergence of some approximation schemes associated to SDEs driven by a fractional Brownian motion
Neuenkirch, Andreas; Nourdin, Ivan UL

in Journal of Theoretical Probability (2008), 20(4), 871-899

Detailed reference viewed: 59 (6 UL)
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See detailExact solutions to a class of feedback systems on SO(n)
Markdahl, Johan UL; Hu, Xiaoming

in Automatica (2016), 63

This paper provides a novel approach to the problem of attitude tracking for a class of almost globally asymptotically stable feedback laws on View the MathML source. The closed-loop systems are solved ... [more ▼]

This paper provides a novel approach to the problem of attitude tracking for a class of almost globally asymptotically stable feedback laws on View the MathML source. The closed-loop systems are solved exactly for the rotation matrices as explicit functions of time, the initial conditions, and the gain parameters of the control laws. The exact solutions provide insight into the transient dynamics of the system and can be used to prove almost global attractiveness of the identity matrix. Applications of these results are found in model predictive control problems where detailed insight into the transient attitude dynamics is utilized to approximately complete a task of secondary importance. Knowledge of the future trajectory of the states can also be used as an alternative to the zero-order hold in systems where the attitude is sampled at discrete time instances. [less ▲]

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See detailExaggerating difference: Representations of the Third World Other in PI aid
Juffermans, Kasper UL

in Intercultural Pragmatics (2012), 9(1), 23-45

This article is concerned with how private/personal initiatives (PIs) in development cooperation (PI aid) represent their aid projects and beneficiaries in discourse. Dutch and Flemish PIs active in The ... [more ▼]

This article is concerned with how private/personal initiatives (PIs) in development cooperation (PI aid) represent their aid projects and beneficiaries in discourse. Dutch and Flemish PIs active in The Gambia, Wet Africa, are examined on the basis of a critical analysis of the self-promotional material published on their websites. It is argued that PIs construct an image that exaggerates cultural and socio-economic differences between the European Self and the African Other, and that this needs to be understood in the context of the PIs' roots in tourism and other discourses of representing the Third World Other. [less ▲]

Detailed reference viewed: 65 (1 UL)
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See detailExamination of a model over self-controlled motion-learning
Bund, Andreas UL; Ferwagner, Dirk

in Hoppeler, H.; Reilly, T.; Tsolakidis, E. (Eds.) et al Book of Abstracts (2006, July)

Detailed reference viewed: 23 (1 UL)
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See detailExamination of a New Defense Mechanism: Honeywords
Genç, Ziya Alper UL; Kardaş, Süleyman; Kiraz,

in Proceedings of the 11th WISTP International Conference on Information Security Theory and Practice (2017)

Past experiences show us that password breach is still one of the main methods of attackers to obtain personal or sensitive user data. Basically, assuming they have access to list of hashed passwords ... [more ▼]

Past experiences show us that password breach is still one of the main methods of attackers to obtain personal or sensitive user data. Basically, assuming they have access to list of hashed passwords, they apply guessing attacks, i.e., attempt to guess a password by trying a large number of possibilities. We certainly need to change our way of thinking and use a novel and creative approach in order to protect our passwords. In fact, there are already novel attempts to provide password protection. The Honeywords system of Juels and Rivest is one of them which provides a detection mechanism for password breaches. Roughly speaking, they propose a method for password-based authentication systems where fake passwords, i.e., "honeywords" are added into a password file, in order to detect impersonation. Their solution includes an auxiliary secure server called "honeychecker" which can distinguish a user's real password among her honeywords and immediately sets off an alarm whenever a honeyword is used. However, they also pointed out that their system needs to be improved in various ways by highlighting some open problems. In this paper, after revisiting the security of their proposal, we specifically focus on and aim to solve a highlighted open problem, i.e., active attacks where the adversary modifies the code running on either the login server or the honeychecker. [less ▲]

Detailed reference viewed: 168 (4 UL)
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See detailExamination of colocalization of calcitonin gene-related peptide- and substance P-like immunoreactivity in the knee joint of the dog
Tamura, Ryoko; Hanesch, Ulrike UL; Schmidt, Robert et al

in Neuroscience Letters (1998), 254

Detailed reference viewed: 49 (1 UL)
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See detailExamining children’s agency within participatory structures in primary science investigations
Siry, Christina UL; Haus, Jana Maria; Wilmes, Sara UL

in Learning, Culture, and Social Interaction (2016), 10

Detailed reference viewed: 137 (14 UL)
See detailExamining grades, achievement test scores, and three intelligence facets within an extended I/E model
Hausen, Jennifer UL; Möller, Jens; Greiff, Samuel UL et al

Scientific Conference (2019, September 10)

Domain-specific academic self-concepts (ASCs) are mental representations of one’s abilities that are specific to a particular school subject. According to the internal/external frame of reference (I/E ... [more ▼]

Domain-specific academic self-concepts (ASCs) are mental representations of one’s abilities that are specific to a particular school subject. According to the internal/external frame of reference (I/E) model, achievement influences the formation of ASCs via social and dimensional comparison processes: within one domain students not only compare their achievement with their peers (social comparison) but also with their own achievements in other domains (dimensional comparison). However, students’ intelligence as an indicator of achievement has been neglected within the I/E model framework. Yet, intelligence is known to be an important determinant of academic success and thus it can be assumed to influence the formation of academic self-concepts, too. Hence, this research examined the links between verbal, numerical, figural intelligence and domain-specific ASCs while controlling for grades and achievement test scores. We drew on N = 382 German students to analyze verbal, numerical, and figural intelligence, German and math achievement, domain-specific self-reported grades and ASCs in math, physics, German, and English. We performed structural equation modeling using Mplus 8 with grades, achievement scores and intelligence facets specified as manifest predictors and domain-specific ASCs as latent criteria. Positive within-domain relations indicating social comparison effects were found between math, physics, German, and English grade to their corresponding self-concept as well as from math achievement to math ASC. Dimensional comparison effects are implied by a positive cross-domain path between physics grade and math ASC and by negative cross-domain paths from math grade to German, physics, and English ASC. Further, a positive cross-domain relation was found between math achievement and physics ASC while a negative cross-domain path was found between German achievement and math ASC. With regard to the intelligence facets, positive paths were found between numerical intelligence and physics ASC as well as between verbal intelligence and English ASC. Our findings thus suggest numerical and verbal intelligence to be valid predictors of ASC formation in an extended I/E model beyond grades and test scores. Overall, the proposed I/E model permitted meaningful relations to be drawn between domain-specific achievement indicators and ASCs suggesting that these variables provide incremental validity. [less ▲]

Detailed reference viewed: 37 (1 UL)
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See detailExamining neural reactivity to gambling cues in the age of online betting
Brevers, Damien UL; Sescousse, Guillaume; Maurage, Pierre et al

in Current Behavioral Neuroscience Reports (2019), 6(3), 59-71

Purpose of Review The goal of this review is to provide new insights as to how and why functional magnetic resonance imaging (fMRI) research on gambling cue reactivity can contribute to significant ... [more ▼]

Purpose of Review The goal of this review is to provide new insights as to how and why functional magnetic resonance imaging (fMRI) research on gambling cue reactivity can contribute to significant progress toward the understanding of gambling disorder. After having offered a detailed description of experimental paradigms and a comprehensive summary of findings related to gambling cue reactivity, the present review suggests methodological avenues for future research.Recent Findings The fMRI literature on problem gambling has identified the main neural pathways associated with reactivity to gambling cues. Yet, the current knowledge on the key factors underlying cue reactivity in gambling is still very incomplete. Here, we suggest that the recent expansion of online sports betting calls for a new line of research offering a fine-grained and up-to-date approach of neural cue reactivity in gambling disorder.Summary Experimental designs that investigate individual-specific and study-specific factors related to sports betting have the potential to foster progress toward efficient treatment and prevention of gambling disorder. [less ▲]

Detailed reference viewed: 51 (3 UL)
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See detailExamining parental perceptions of family, child adjustment, and school risk factors during the transition to secondary school
Born, MIchel; Poncelet, Débora UL; Bernard, Séverine

in SRA 2008 Biennial Meeting (2008)

Detailed reference viewed: 13 (0 UL)
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See detailExamining Regional Competitiveness and the Pressures of Rapid Growth: An interpretive institutionalist account of policy responses in three city regions
Krueger, James Robert UL; Gibbs, David; Carr, Constance UL

in Environment and Planning C: Politics and Space (2018)

This paper is premised on the notion that actors play a central role in shaping their institutional contexts. The paper adds to scholarship in this area by bringing together three disparate cases with a ... [more ▼]

This paper is premised on the notion that actors play a central role in shaping their institutional contexts. The paper adds to scholarship in this area by bringing together three disparate cases with a common analytical entry point: the city region. Despite their multiple scales and different sites of governance, these cases are united by a common theme, exemplified in each city region: addressing the contradictions of rapid development, in particular rapid growth and competitiveness. Using the conceptual framework of interpretive institutionalism, we examine how dilemmas, in this case the pressure of rapid growth in regions, are informed by the different traditions for understanding the role of the market in delivering project outcomes. Our findings show this difference in institutional norms and the variance among the different paradigms. [less ▲]

Detailed reference viewed: 109 (22 UL)
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See detailExamining students’ mathematics attitudes across time: A test of the theory of planned behavior.
Niepel, Christoph UL; Greiff, Samuel UL; Preckel, Franzis et al

Scientific Conference (2015, August)

Detailed reference viewed: 50 (3 UL)
See detailExamining Sustainable Spatial Development in Luxembourg
Carr, Constance UL; Krueger, Robert

Presentation (2011, May)

As founding member of several European and international institutions (EU, OECD, NATO, UN), host to several institutions of the European Union (Parliament Secretariat, Court of Justice, the European ... [more ▼]

As founding member of several European and international institutions (EU, OECD, NATO, UN), host to several institutions of the European Union (Parliament Secretariat, Court of Justice, the European Investment Bank), and ranked 16th among global financial centers (City of London 2010), Luxembourg’s smallness is enigmatic, but also offers a unique opportunity to study global processes operating within a small frame. This paper presents progress achieved in, and collaborative to, the SUSTAINLUX research project, funded by the Fonds National de la Recherche Luxembourg and the Worcester Polytechnic Institute. Unlike its neighbouring nations, Luxembourg seems only just entering a post-flexible era (if at all). The financial ruptures since 2008 have had relatively little impact, and as such, Luxembourg grapples with spatial structural changes associated with its post-industrial and prospering tertiary economy. Its comparably young sustainable development policy is primarily challenged by recent demographic changes, and its geographical specificity. Of its 503,000 residents, roughly 200,000 are landed immigrants. On each working day, the nation’s population increases circa 50% as workers from neighbouring nations enter the country and commute to work. Each day, the City of Luxembourg’s population doubles in size – and its nodal position at the crossroads that lead to Cologne, Paris, and Brussels, is continually strengthening in importance. Concurrent pressures on the real estate market rates pose a real barrier to settlement within or near the capital city (Becker and Hesse 2010). There are thus strong impacts at the local level with high pressure on the provision of housing and transportation infrastructure, which result in conflicting trajectories in terms of sustainable land-use. The fields of housing policy and mobility are thus promising case studies towards a more thorough analysis of the significance, policy relevance, barriers, and shortcomings of sustainable spatial development strategies. The research aims at critically examining the approach of sustainable development, in the context of Luxembourg’s urban and regional transformations and corresponding governance structures (Carr, Hesse and Schulz 2010). While city planners are confronted with finding ways to manage growth, the normative of sustainable development permeates all levels of planning. The first part of this paper will map the literature and discourse on sustainable development in Luxembourg, and summarize the role and limitations of this normative discourse in its social spatial transformation. The second part of this paper will introduce the research agenda of Prof. Krueger, who will pursue research collaborative to SUSTAINLUX, adding a comparative dimension to the study. He will describe his aims to: 1) understand the institutional milieu of sustainability governance in Luxembourg and how it compares internationally; 2) develop an understanding of how actors work and how these practices reproduce certain outcomes; 3) understand how actors’ perceptions affect the form and function of sustainability governance; and 4) assemble the data from aims 1-3 to develop a triangulated analysis of institutional change that is both actor-centric and sensitive to the contextual constraints of the system. This comparative approach will be of interest to social scientists who study how actors understand and shape their policy milieus in different political and geographical contexts, in relation to sustainability. References Becker, T. and Hesse. 2010. “Internationalisierung und Steuer metropolitaner Wohnungsmärkte – Das Beispiel Luxemburg” Information zur Raumentwicklung.“ 5: 403-415. Carr, C., Hesse, M., and Schulz, C. 2010. „Sustainable Spatial Development in Luxembourg (SUSTAINLUX)” Funded by FNR (CO9/SR/01), Working Paper 1, Laboratoire de Géographie et Aménagement du Territoire City of London (2010) “Global Financial Centres 7.“ City of London. Krueger R. & D. Gibbs. 2007. (ed.), “The Sustainable Development Paradox: Urban Political Economy in the United States and Europe.” New York: The Guilford Press. [less ▲]

Detailed reference viewed: 77 (1 UL)
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See detailExamining the role of empathy in helping and aggressive behavior
Pfetsch, Jan UL; Steffgen, Georges UL; Gollwitzer, Mario

in Zukauskiene (Ed.) Proceedings of the XIV European Conference on Developmental Psychology ECDP. Vilnius, Lithuania, August 18-22, 2009 (2010)

Detailed reference viewed: 57 (3 UL)
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See detailExamining the role of empathy in helping and aggressive behavior
Pfetsch, Jan UL; Steffgen, Georges UL; Gollwitzer, Mario

Scientific Conference (2009, August)

Detailed reference viewed: 66 (1 UL)
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See detailAn example of a weighted algebra $L_p^w(G)$ on uncountable group
Kuznetsova, Julia UL

in Journal of Mathematical Analysis & Applications (2009), 353(2), 660-665

Detailed reference viewed: 11 (1 UL)