A common method to solve expensive function evaluation problem is using Bayesian Global Optimization, instead of Evolutionary Algorithms.

Can SMILE, our multi-component intervention, which combines cognitive-behavioural therapy for insomnia, mindfulness, stress, and lifestyle components, improve sleep quality? Can it also improve mood and quality of life and prevent depression and anxiety in the long term?

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In order to test theoretical expectations concerning individual decision-makers' search in response to negative performance, Joris van der Voet conceptually disentangles problem-defining and solution-generation as two distinct search objectives.

Promotores: Prof.dr. H.S. Overkleeft, Prof.dr. G.A. van der Marel

Students with learning problems experience difficulties in reading, writing, and content-area learning into and throughout their secondary-school years

The aim of this project is to develop, evaluate, and multicentre implement a blended form of cardiac rehabilitation that uses a theory-based approach to guide patients to full self-management.

In recent years, the use of primary data in terrorism research has increased. In order to maximise the benefits of this trend, we want to encourage terrorism scholars to implement open science practices more systematically. This article therefore presents different avenues towards open and reproducible…

Supervisor: Indira Nederpelt

Whether implicitly or explicitly, we all have ideas about how the law is supposed to function, whose interests it should represent, and what role it should play in society. This project explores the ways in which these questions are addressed in the works of the Roman historian Publius Cornelius Tacitus…

The recently promoted Hao Wang from the Leiden Institute of Advanced Computer Science teaches computer programmes how to solve real-world problems. His goal is to make the process of problem-solving more efficient. On 1 November, he obtained his doctorate with the predicate cum laude. ‘I hope to solve…

‘It's empty talk, nothing but political posturing,’ says Prof. Leo Lucassen about Minister Lodewijk Asscher's plan for a participation contract for migrants. ‘It will never happen.’ Lucassen, Leiden specialist in History of Migration, discussed Asscher’s Integration Letter on the NTR programme De Halve…

Ramautar

Archaeologist Araceli Rojas has been invited to participate in the award-winning festival Let’s Talk about Water. This festival combines academic seminars, movies, and panel discussions around water issues around the globe.

Social relationships of students are important. Especially for students with problem behavior. How can a teacher support students in their social relationships via their own interactions with students? A lot, as is shown by a meta-analyses of Hinke Endedijk. She assessed almost 300 studies about teacher-student…

To what extent are the rights to street children violated en how can their rights be protected?

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Inspectors at the Dutch Tax and Customs Administration can require people to provide more information relating to their tax returns. Esther Huiskers-Stoop from the Tax Law department investigated the rules in place to protect us when we are required to provide information to the tax authorities.

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‘Violence as a Population Health Problem’ is one of 33 interdisciplinary projects that have been launched thanks to a Kiem grant. The project team will analyse a large patient database to identify links between violence and other health problems. ‘Violence can also be an expression of other factors,’…

Solving a scientific problem after decades: it’s a long-lasting dream for many scientists. Consequently, the research of Leiden and Eindhoven chemists gained a lot of media attention, for instance from the Belgian news website VRT Nieuws and science website Phys.org.

Theoretical research does not always give us the right solution to a problem in society. This message, loud and clear, is delivered during the final presentations of the Master Honours Class 'Social Innovation in Action'.

Today, February 6th, the new course Wicked Problems Lab (in full: Wicked Problems Lab: working with governance, leadership and social innovation) started. This new course for third-year Honours students is part of the Honours Track

On Thursday the 29th of October, Kennis Maken Den Haag organises the third edition of Den Haag Draait Door. In this online talk show, experts and policymakers will discuss problems that exist in the city of The Hague. During this edition, as usual, students, researchers and residents from the region…

Boys with autism are more prone to develop physical complaints, depression and aggressive behaviour. Psychologists at Leiden University have discovered that this is mainly related to rumination. Publication in the Journal of Autism and Developmental Disorders.