Young children, adolescents and students may experience learning difficulties as a result of lack of sleep. Dr Kristiaan van der Heijden investigates sleep problems and solutions for various age groups.

The overarching aim of this theme is to increase our understanding of the mechanisms underlying altered cognitive, affective, and social behavior in relation to mental health problems.

How do plants lure microscopically small 'support teams' into their roots for protection against diseases? And what functions are activated in the microbes and the plants?

Supervisor: Lizi Xia

Supervisor: Xue Yang

The Faculty of Medicine

Through his project we will unravel the global regulatory networks that control gene expression in Streptomyces bacteria and allow them to properly respond to major changes in the environment; we will then harness this knowledge to activate and identify novel antibiotics

Are you interested in the neurocognitive and biological roots of learning, behaviour and emotions in children? If so, the programme in Applied Neuroscience in Human Development might be the specialisation you are looking for.

The Psychology Research Seminars are organised by and for institute staff. They offer an opportunity to share knowledge, gain new insights, and meet colleagues from various disciplines.

If gifted children are experts in using strategies, why do they experience problems with learning? Why do they underachieve?

Death, fire and identity in North-West Europe

Annually the Institute of Cultural Anthropology and Development Sociology awards the Speckmann prize for the best Fieldwork NL report, as well as the most accomplished master’s thesis.

This research cluster is a part of the Institute of Political Science’s research programme ‘Institutions, Decisions and Collective Behaviour’. Its members investigate the drivers of political conflict and various types of crises. They study how citizens, political institutions and international organizations…

Can process-oriented dynamic testing be applied to everyday educational practice?

What is the relationship between outcomes of dynamic testing and cognitive flexibility in young children?

What is the effect of a dynamic training in children’s inductive reasoning skills and how is it related to children’s school performances and language development.

PhD defence

Despite the field’s general agreement that pyrotechnology had a significant impact on the cultural evolution of humankind, our understanding of the origins and development of fire use and its role in humankind’s cultural evolution is very limited, blurred by strong disagreements over its chronology…

Femke Binnendijk and Olaf van Loon have been appointed as lecturers at the Department of Constitutional and Administrative Law at Leiden Law School.

The earth has more than 7 billion inhabitants, all of whom leave behind traces of pollution. However, not all forms of pollution have the same harmful effect. Leiden scientists help determine where we should put our priorities.

Having a chronic somatic condition can result in a variety of impairments in patients’ daily lives, including not only physical complaints such as pain, itch, and fatigue, but also problems of negative mood and impairments in social relationships. Next to disease characteristics, individual difference…

The researchers at the Institute of Education and Child Studies focus on child rearing and the development of children and adolescents with and without developmental and other problems, in biological and non-biological families, childcare, education and care institutions.

Researchers at Leiden study group behaviour. One of their findings is that when people make sacrifices for another member of their group, it is probably instinctive. Insights of this kind enable us to better understand and influence the social processes in a neighbourhood or company.

Leiden has a long history in the treatment of blood cell cancer. Research to find better therapies never stands still. One of the potential treatments currently being worked on is a ‘living medicine’.

How do people develop and how do they learn? How does their environment affect them? How do we ensure that they develop in optimal fashion? And what can we do if problems occur? These are questions that the researchers at the Institute of Education and Child Studies try to answer.

The Academy of Creative and Performing Arts (ACPA) of Leiden University and Art Institute West Den Haag are pleased to announce their close collaboration in the second season of the public series In the Making. This series, dedicated to the practice of research in the arts, will consist of seven public…

Recently, NWO has decided to grant two interdisciplinary research proposals for national and international consortia submitted by researchers from the Institute of Biology Leiden. One of the proposals is led by Prof. dr. Ariane Briegel, the other one by dr. Remko Offringa.

May 12 is Mother's Day in many countries. Becoming a mother is no mean feat: brain scientist Elseline Hoekzema has shown that a woman's brain changes drastically during pregnancy. She explained how in TV show De Kennis van Nu.

Do young people who want to change gender have the unconditional right to medical treatment? Pediatric Endocrinologist Martine de Vries, who is also Professor of Medical Ethics, treats transgender children and adolescents. She will discuss this in her ‘Pride Talk’ on 18 September.

In breast cancer, metastasis rather than the primary tumour is the cause of death. A lack of oxygen in the tumour cells promotes this metastasis, accompanied by a reprogramming of the cell's metabolism. PhD candidate Qiuyu Liu investigated these alterations to get more knowledge about the actionable…

PhD student Esmee Koedoot studied the underlying processes responsible for metastases in a dangerous type of breast cancer. She hopes to find new possibilities to fight the disease. In December 2019 she obtained her doctorate cum laude.

The major aim is to examine the potential of learning the body to produce a similar physiological (autonomic, neuroendocrine, or immune) and physical (e.g., desensitization of persistent physical symptoms) response to placebo medication than to active medication (pharmacological conditioning). If proven…

Tropical butterflies adapt to their environment to improve their chances of survival. The changes are triggered by hormone signals that transmit information about temperature to the butterflies' tissues. Biologist Ana Rita Mateus shows how a complex combination of environment, physiology and genetics…

The Mathematical Institute has a rather liberal management structure. Tasks and responsibilities are distributed among the staff. Important decisions are taken by consensus. Various organisational divisions are featured below.

At the Faculty of Archaeology, we investigate the development of human societies worldwide, from the earliest beginnings to modern times. We also study the heritage of mankind, which evokes this deep history, and which connects with, and informs, contemporary society.

Is the legitimacy of law and governance of multilevel jurisdictions diminishing? What is the significance of (diminishing) legitimacy for the effectiveness of law? These kinds of questions about the legitimacy of the supranational formation of law, its application, and the policy and governance based…

Door de totale anonimiteit van online servers is het erg lastig om cybercriminelen op te sporen. Dat moet anders, vindt Femke Halsema. Universitair docent Jan-Jaap Oerlemans en hoogleraar Law and Data Science Bart Custers spraken met de Volkskrant.

By tradition, the moot court competition of the 'Vereniging voor Bestuursrecht' (VAR, Dutch Administrative Law Association) takes place in May every year. This year, it was the honour of Leiden University to organise the event.

Currently, the bill ‘Wet versterking waarborgfunctie Awb’ (strengthening the guarantee function of the Dutch General Administrative Law Act) is in preparation. The bill is intended to strengthen the human dimension in the execution and administration of justice.

Leiden biologists have shown that a gene present in plants, animals and yeasts does play an important role in plants, although for years the gene was considered unimportant. It turns out the gene plays a crucial role in the development of vascular tissue in plants. Publication in Nature Plants on 11…

Jos F. Brosschot has been appointed as a professor by special appointment on the chair ‘psychophysiological mechanisms of stress in daily life’. This chair has been created by the Foundation for Research into Psychosocial Stress.

Four researchers from Leiden University have been awarded prestigious Vici grants the Dutch Research Council (NWO) has announced. The honoured applications are from researchers at the Faculty of Social and Behavioural Sciences, Leiden Observatory, the LUMC and the Faculty of Archaeology.

The Data Science Research Programme at Leiden University combines data science with PhD projects in a wide range of disciplines. The programme has been running for over two years, and is producing the first astonishing results. A number of PhD candidates talk about their experiences and research bel…

Living systems scale from unicellular microbes to complex multispecies communities that constantly change over time. Within the theme Development & Disease, we enhance our fundamental understanding of development and homeostasis of living cells and systems. We analyze the normal situation and how stresses…

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2020 is a year in which we need to reinvent ourselves, including within our faculty's marketing department. For years, colleagues have been organising introduction activities such as the Bachelor's Open Days, Master's Open Days and Online Experiences. From March onwards, everything had to change.

Remko Offringa has been appointed Professor in the field of Plant Developmental Genetics within the Faculty of Science at the Institute of Biology Leiden (IBL) from the 1st of April 2017. Offringa’s research focuses on the role of the plant hormone auxin in controlling plant growth and development,…

Can dynamic testing provide us with insight in children’s potential for learning?

Apps that can precisely identify shards, coins or heel bones: archaeology has embraced artificial intelligence. Alex Brandsen is working on a search engine that scans vast quantities of text from an archaeological viewpoint.