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.

During post-embryonic development into adults, animals face an environment that fluctuates constantly. For example, in nutrient availability, temperature, and osmolarity (e.g., salt concentration).

Food security is challenged by a growing global population and by climate change. Drought and soil salinity are considered the most important ones that inhibit crop yield and distribution. Worryingly, climate change is predicted to increase not only their frequency and severity, but also their co-occurrence,…

What are the behavioral, cognitive, and motivational consequences of decision reversibility?

Matthias Haentjens, Jouke Tegelaar and Dorine Verheij have recently published the chapter Financial Market Regulation and Supervision in the new volume of the prestigious The Law of the European Union (previously Kapteyn and VerLoren van Themaat).

Every time we pay for something, our money moves through global technical systems that connect the world economy. These systems are convenient, but they also expose users to Western sanctions, prompting countries like Russia to look for alternative financial infrastructure.

Rutsel Martha, former Minister of Justice of the Dutch Antilles, former General Counsel of Interpol and alumnus of Universiteit Leiden, elaborated on the position of states and intergovernmental organizations (IGOs) in international financial law.

This subproject argues for a close and forensic reconstruction of financial flows to and from Soviet Central Asian republics in the postwar period.

Lodewijk Petram, author of the book 'The World's First Stock Exchange', discussed the rise of the Amsterdam stock exchange in the 17th century in the ninth Hazelhoff Guest Lecture.

How did changes in the composition and exploitation of princely domains in various principalities of the Low Countries influence the development of ‘modern’ public finance systems, including the notion of public debt?

The central question of this Vici proposal is to investigate if, and how actinobacteria exploit life without a cell wall.

Our vision of stress is starting to change fundamentally. We can suffer stress without even being aware of it, while sleeping as wall as during the day. Professor of Psychology Jos Brosschot will discuss this phenomenon in his inaugural lecture on 2 December.

High throughput microscopy

A publication on the location of financial losses and the validity of jurisdiction clauses after the CJEU’s Kolassa v Barclays Bank and Profit Investment v Ossi judgments.

Just published: United in incoherence – Private law concepts under pressure from European financial law (in Dutch), in: Tijdschift voor privaatrecht 2017-4

Recent studies have shown that Dutch secondary school pupils experience a great deal of stress from school work, and between 2001 and 2007 the number of adolescents experiencing school stress even doubled. The study carried out by Simone Vogelaar focuses on stress factors and the effectiveness of the…

Promotores: T. Hankemeier; R. Berger, Co-promotor: R.J. Vreeken

The overall objectives of my thesis are to investigate the dynamics of the sorghum root microbiome and to explore the beneficial effects of the root microbiome on sorghum growth and stress tolerance.

The focus of the described research in this thesis is on the oxidative stress response (Nrf2 pathway). The aim of the research presented in this thesis is to obtain more information concerning microRNAs which are involved in the Nrf2 pathway, to determine and evaluate the application of microRNAs for…

Fungal food spoilage often starts with a contamination with spores. Experimental data strongly indicate the existence of subpopulations of spores with different levels of resistance to preservation methods.

Ilze Bot and Johan Kuiper have published in The Lancet: Study unveils how stress may increase risk of heart disease and stroke. Aso: The National Dutch newspaper 'NRC' has mentioned them in a column

The STAP study examines the cost-effectiveness of Written Exposure Therapy (WET) for post-traumatic stress disorder (PTSD) symptoms in primary care settings.

Stress, burnout, depression – these conditions pervade all levels of our society. Children and students suffer from constant pressure to achieve; at the international level, tensions lead to short-sighted actions; and, at the personal level, stress affects our health and social environment. How do our…

Up to 50% of all children and adolescents growing up worldwide are exposed to at least one form of childhood adversity (CA), which is one of the strongest predictors for later-life psychopathology.

How does stress affect different components of behavioral impulsivity and aggression in patients with Borderline Personality Disorder compared to clinical controls (patients with Attention Deficit Hyperactivity Disorder) and healthy controls?

Matthias Haentjens and Ross Spence participated in Warsaw conference and PhD workshop on 16 & 17 November 2018.

To celebrate the fifth anniversary of the Hazelhoff Centre for Financial Law, the conference ‘Public and Private Regulation of Financial Markets’ was held on the 11th of May 2017 at law firm Stibbe in Amsterdam. The conference attracted an international audience originating from more than five different…

On March 7, 2019, the Hazelhoff Centre for Financial Law organised a mini-seminar on ‘Asset segregation in the financial sector’. During this meeting a number of experts, both practitioners and academics, gave a presentation on a topic in the field of asset separation. All the participants were also…

Clinical psychologist Bernet Elzinga has been appointed as Professor of a personal chair at the Faculty of Social and Behavioural Sciences. This professorship will contribute both nationally and internationally to the broader promotion of Leiden University in the field of stress and psychopathology.

The challenge: Building a tool to detect chemical compounds that individually cause non-lethal stress to bacteria, but that are lethal in combination. A team of thirteen Leiden students are taking up this challenge in the annual ‘international Genetically Engineered Machine’ (iGEM) competition for applications…

Stress and overwork are massive problems today, but relatively little is known about stress factors in the past. With a look at the deep history of stress, Sarah Schrader hopes to get a better understanding of the human stress experience. Her project application received an NWO XS grant.

Matthias Haentjens and Jouke Tegelaar held a presentation on the European dimension of judicial review of financial supervision at the Dutch Authority for the Financial Markets (Autoriteit Financiële Markten, AFM).

Chronic stress weakens the immune system, psychologist Jos Brosschot warns in an interview with Leidsch Dagblad newspaper. Social isolation can cause feelings of insecurity and stress. He therefore advises keeping in touch with others.

This week has seen the publication of the Research Handbook on Cross-border Bank Resolution.

The aim of this thesis was to study phage infection in Streptomyces, focused on cell wall-deficient cells. Bacteriophages (or phages in short) attach to the cell wall of bacteria after which they replicate and lyse the host cell.

Acute stress seems to have a surprisingly positive effect on our health. Researcher Erin Faught received an NWO veni grant to find out why that is and how we can use that knowledge to our advantage. For her lab research, she uses a remarkable small animal to learn more about our own stress levels.

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?