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451 search results for “some problems” in the Public website

• Probing complex problems Research Dossier

  Issues such as climate change, the depletion of natural resources or social inequality are too complex to be addressed from a single scientific discipline or by a single country. Leiden University has the expertise to bring the resolution of these enormous problems a small step closer.

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  Emma Everaert Postdoc

  Social & Behavioural Sciences

• Ethnic disadvantage and adolescents’ emotional- and behavioural problems Research project

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• The migrant problem Research Dossier: Europe

  The current migration flow into Europa demands effective measures. Leiden experts examine whether these measures are legal and hold up a mirror to policy-makers.

• Tailored care for children at high risk for problem behaviour Research project

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• Meta-heuristics for vehicle routing and inventory routing problems Research output

  Promotores: T.H.W. Bäck, Y. Tan, Co-promotor: M.T.M. Emmerich

• Counting problems for number rings Research output

  Promotor: H.W. Lenstra

• Solving the Gravitational N-body Problem with Machine Learning Research output

  In this work, I explore the creation of new methods that optimize simulations of the gravitational N-body problem. Specifically, I take advantage of the recent popularity of Machine Learning methods to find tools that can suit this problem.

• Understanding the complexity of intelligence problems Research output

  The complexity of an intelligence problem determines to a great extent the certainty that can be provided by intelligence and security services.

• Solving multiplication and division problems Research output

  Latent variable modeling of students' solution strategies and performance

• Inverse problems for universal deformation rings of group representations Research output

  Promotor: P. Stevenhagen, Co-promotores: B. de Smit, F. Andreatta

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  Rosa Koenraadt Assistant Professor

  Faculty of Law

• Executive deficits, behavioural problems and early reading development Research project

  This study tests whether behavioural problems at a young age are related to early reading and mathematics development.

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  Stefanie van Goozen Professor of Neuro-biological and Orthopedagogical Settings of Serious Behavioural Problems

  Social & Behavioural Sciences

• Education Learning and Behaviour Problems in Education: Challenges and Solutions

  The Learning and Behavior Problems in Education program group is responsible for teaching in the area of learning problems.

• Integrating Interdisciplinary Learning Goals and Methods for Wicked World Problems Research project

  What are best practices for teaching students to engage with 'wicked' problems?

• Research Learning and Behaviour Problems in Education: Challenges and Solutions

  The research of the group Learning and Behavior Problems in Education addresses learning difficulties in the areas of reading (technical reading and reading comprehension) math and writing, and examines learning-related behaviors behaviors.

• Sparsity-Based Algorithms for Inverse Problems Research output

  Inverse problems are problems where we want to estimate the values of certain parameters of a system given observations of the system. Such problems occur in several areas of science and engineering. Inverse problems are often ill-posed, which means that the observations of the system do not uniquely…

• Early intervention in behavioural problems at school Research Dossier: Taking care of your health

  Leiden University social scientists have shown that customised intervention pays off. A new fundamental research-based approach in children who are in danger of going off the rails has delivered spectacular results.

• Opportunity and Problem in Context (OPiC). A framework for environmental management in developing countries Research output

  Promotor: W.T. de Groot

• The CM class number one problem for curves Research output

  Promotores: P. Stevenhagen, A. Enge Co-Promotor: T.C. Streng

• Learning and Behavior Problems in Education: Challenges and Solutions

  The program group Learning and Behavior Problems in Education: Challenges and Solutions strive to find solutions to the learning and behavior challenges faced by preschool and elementary-school children, youth, and young adults in education. In doing so, the group focuses on cognition and behavior and…

• Negotiating Peace with Your Enemy: The Problem of Costly Concessions Research output

  Why do some parties fail to settle conflict, even after long periods of fighting? ISGA PhD candidate Valerie Sticher suggests that costly concessions often stand in the way of a negotiated agreement. Conflict party members not only care about their in-group's welfare, but also want to avoid rewarding…

• Severe behavioral and emotional problems, special education and youth care Research project

  Which educational and child welfare interventions offer optimal opportunities for positive development to children with severe behavioral and emotional disorders.

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  Paul Vedder Professor emeritus Youth Care and Behavioural Problems in Youth

  Social & Behavioural Sciences

• Contact Learning and Behaviour Problems in Education: Challenges and Solutions

  The program group Learning and Behavior Problems in Education is located in the Faculty of Social and Behavioural Sciences of Leiden University near Central Station.

• Design for the Future: Wicked Environmental Problems in Sustainability and Health Research project

  How do we approach education that facilitates creative confidence for students that leads to innovative solutions to society’s present day and future sustainability challenges? This education research project tackles a sustainability dilemma faced by households in everyday life viz.

• Solving problems in your head and in the world Research output

  Until recently, the role of external information processing in intelligence has rarely been investigated quantitatively or experimentally. A group of researchers from Erasmus University Rotterdam, Leiden University, GGZ Rivierduinen, and University of Edinburgh measured in a new way how and when people…

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  Moji Aghajani Assistant Professor

  Social & Behavioural Sciences

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  Jean-Louis van Gelder Professor Criminology

  Social & Behavioural Sciences

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  Hinke Endedijk Assistant professor

  Social & Behavioural Sciences

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  Kristiaan van der Heijden Vice Dean / Associate Professor

  Social & Behavioural Sciences

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  Veronica Saz Ulibarrena PhD candidate

  Faculty of Science

• Big simulations for big problems Research output

  In this thesis we investigate cosmology and the large scale structure of the Universe using cosmological simulations.

• The gravitational billion body problem Research output

  Promotor: Prof.dr. S. Portegies Zwart

• Geometric approach to evolution problems in metric spaces Research output

  Promotor: S.M. Verduyn Lunel, Co-promotor: O.W. van Gaans

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  Nina Eggens PhD candidate

  Faculty of Law

• ontology and the search for neural mechanisms: Three foundational problems" Event - 4 December 2025

  Lecture

• Algorithm design for mixed-integer black-box optimization problems with uncertainty Research output

  The increasing competition in the automotive industry requires the tailored, swift development of technologically sophisticated vehicles. Therefore, the computationally expensive state-of-the-art simulation technologies are combined with optimization algorithms. An example of a real-world optimization…

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  Evelien Urbanus Guest

  Social & Behavioural Sciences

• Speech intelligibility problems of Sudanese learners of English. An experimental approach Research output

  This dissertation aims at discussing the nature and the linguistic factors assumed responsible for speech intelligibility problems of Sudanese learners of English.

• efficacy of digitized storybooks for young learners with attention problems Research project

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• Model-assisted robust optimization for continuous black-box problems Research output

  Uncertainty and noise are frequently-encountered obstacles in real-world applications of numerical optimization. The practice of optimization that deals with uncertainties and noise is commonly referred to as robust optimization.

• Development of a academic monitoring system for students with learning problems in secondary school Research project

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

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  Esther Mertens Guest

  Social & Behavioural Sciences

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  Nikki Nibbering PhD candidate

  Social & Behavioural Sciences

• lntervention: Live Effectively a group intervention in students with sleep problems Research project

  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?

• dynamics: Understanding collaborative governance approaches to ‘big’ problems through studying ‘small’ practices Research output

  In this article, Lianne Visser contributed to the understanding of why collaborative governance is a challenging response to wicked problems.

• A study into students' motivation and engagement in problem-based learning in Indonesian Higher education Research project

  What is students’ engagement in problem-based learning (PBL) and case-based learning (CBL) in teacher certification programs?

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  Katrien van de Vijfeijken Guest

  Social & Behavioural Sciences