Promotor: Prof.dr. J.M. van Ruitenbeek, Prof.dr. R.M. Tromp

Children with autism spectrum disorder experience serious challenges in social functioning, which threatens their development in many areas of functioning.

The main aim of this thesis was to unravel the signaling and regulatory networks that drive tumor cell migration during breast cancer metastasis.

Middle Paleolithic stone tool technology is one of the major sources of information about Neandertal behavior and adaptations. The Balkan Middle Paleolithic often remains outside of the major debates and interpretations of Neandertal behavior.

Promotor: Prof.dr. E. Deprettere

How do cognitive, motivational, and affective processes interact to select actions?

I want to understand the overlap between physical health, mental health, and healthy aging and whether/how stress (behaviorally and biologically) may tie these concepts together.

The United Nations Office for Disarmament Affairs (UNODA) has published the 2017 issue in their Civil Society and Disarmament series, titled Voluntary, Non-Binding Norms for Responsible State Behaviour in the Use of Information and Communications Technology: A Commentary. The series aims to provide…

This doctoral thesis is an effort to understand how lipid phase-separation induced by diacylglycerol analogues in lipid-based nanoparticles affects their in vivo behavior, leading to specific nanoparticle-protein communications and selective cell targeting.

Promotor: M.L. van Hecke

How do governments distribute resources across economic sectors during a crisis? And why do some sectors receive more than others? The recent COVID-19 pandemic has highlighted the urgency of these questions. In this paper, we explore the extent to which a political economy…

The Co-Align Conference 2023 will be held on 16 May 2023 at Leiden University.

It is the aim of this project to better understand how the physical properties of lipids influences the structure and overall barrier function of the skin.

The group is involved in training in areas of diagnostic skills, treatment/prevention/intervention, neuropsychological assessment, behavioral observations, clinical interviewing, knowledge of intellectual disability, autism, ADHD, psychosis and aggression.

In this project, we use social network analysis to analyze the behavior of users in online forums and associated marketplaces over time.

The research connected to this topic is related to E-health.

How does the endocannabinoid system in the zebrafish function at the molecular and phenotypic levels and how is it linked to the stress axis?

This study explores public leaders’ organizational learning orientation in the wake of a crisis. More precisely, we study the association between public leaders’ public service motivation and their learning orientation (instrumental versus political).

On 20 January 2022, Marco Stam defended the thesis 'Essays on Welfare Benefits, Employment, and Crime'. The doctoral research was supervised by Prof. M.G. Knoef.

Promotor: W.Th.F. den Hollander Co-Promotor: F.M. Spieksma

Together with two other authors, Jaroslaw Kantorowicz from ISGA investigates the susceptibility to believing in misinformation.

This project aims to explore, in general, what explains civil servants’ attitudes and behavior, and, in particular, why some civil servants are more committed to professional norms and public service values – such as impartiality, equity, efficiency, and innovation – than others.

Voltammetry plays a crucial role in modern scientific research by offering valuable insights into the electrochemical properties of materials, with wide-ranging applications in fields such as materials science, energy storage, corrosion studies, and sensor development.

PhD defence

Lecture, Interactionality seminars

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The programme group Learning and Behaviour Problems in Education is one of the six programme groups within the department of Child and Education Studies at Leiden University.

Empirical Legal Studies has a methodological and substantive component. Our research projects use qualitative and quantitative methods for the empirical study of the intersection between law and behavior. We are interested in the interaction between empirical and normative questions.

Since itch and pain can be very burdensome, especially when individuals suffer from (either of) these symptoms chronically, it is important to know the factors by which these sensations are influenced. It becomes more and more clear that psychological factors play an important role in the experience…

Conference

Ideology and Actions

The Leiden Leadership Centre is a member of the Global Leadership Centres Roundtable (GLCR). The Global Leadership Centres Roundtable is the international network of university-based leadership centres.

On 29 January 2019, Robbert van Eijk defended his thesis 'Web Privacy Measurement in Real-Time Bidding Systems, A Graph- Based Approach to RTB system classification'. The doctoral research was supervised by Prof. dr. H.J. van den Herik.

Supervisor: Andrea Martella

Is blended care a feasible and effective treatment method for social anxiety in adolescence?

This thesis systematically studies the physicochemical properties of non-planar, propeller-shaped, polycyclic aromatic hydrocarbons. The synthesis of several so-called propellerenes is described on a gram scale, using optimized procedures aimed at using less hazardous reagents and reducing the amount…

Why do some children confront social challenges with confidence, whereas others experience difficulties? What is the role of child temperament and child emotional dispositions? What is the role of parenting? This project aims to shed light on the mechanisms explaining shyness and confidence in response…

Behavioral and neural mechanisms underlying self-concept development in relation to educational decision-making in adolescence

In surface science there is great effort to move from studying simple, flat model surfaces in vacuum to investigating more complex model catalysts in gas environments (in situ). This thesis gives three examples of such studies using microscopy and spectroscopy.

When and how does social anxiety develop? How can it go astray in some adolescents? How can we help troubled young people to attend school regularly and return to a normal developmental pathway?

The stratum corneum (SC) plays a fundamental role in the barrier function of the skin. The SC consists of corneocytes embedded in a lipid matrix.

On 9 November, Roosmarijn van Es defended the thesis 'The mind in the courtroom: on forensic mental health reports in judicial decision-making about guilt and sentencing in the Netherlands. The doctoral research was supervised by Jan de Keijser, Maarten Kunst and Janne van Doorn.

The Ministry of Education, Culture and Science, in consultation with the Netherlands Organization for Scientific Research (NWO), provides funding for the Netherlands National Law Sector Plan, part of the domain ‘Social Sciences and Humanities’.

Our team is involved in the translation and adaptation of several questionnaires, for research purposes. Information about each questionnaire is listed below.

Regulating Relations: Controlling Sex and Marriage

The extensive use of electronic communication channels and other devices has opened new possibilities for collecting data on human behavior. This information is sometimes openly accessible, but largely part of administrative registration systems that are not open to the broader public. The data provides…

Adoptees in the Netherlands generally do not use more medication than their non-adopted peers.

Corruption, integrity (or a lack thereof…) and public values are near omnipresent elements in public administration and politics of all times. Cases of corrupt public officials and politicians continuously emerge. Strangely enough, however, it often remains unknown what actually occurred, how something…

Trust and reciprocity are two important social behaviors that help adolescents to navigate their social world successfully. In their empirical article in Journal of Research on Adolescence, van de Groep, Meuwese, Zanolie, Güroğlu, and Crone describe the development of trust and reciprocity in adolescents…

Cell adhesion signaling