1. To what extent do metallic NPs added to soil extractions change the activity, abundance, or community composition of microbes? 2. How do the effects of metallic NPs on soil microbes differ from the effects of the ions shedding from corresponding NPs?

Can we distinguish the effects of pesticides from other abiotic and biotic factors that occur in the field? And how do these factors interact with pesticides?

Online data breaches are recurrent and damaging cyber incidents fors organizations worldwide. This study examines how organizations can effectively mitigate reputational damages in the aftermath of data breaches by hacking, through situational crisis communication strategies.

Promotor: Carel J. ten Cate, Co-Promotor: Hans W. Slabbekoorn

On 24 November 2015, Prof. Carsten Stahn participated as external expert in a special plenary session of the Assembly of States Parties on the efficiency and effectiveness of Court proceedings, chaired by the co-chairs of the Study Group on Governance of the Assembly.

Does an Emotional Working Memory Training show a beneficial transfer effect on emotion regulation (reappraisal) capacities in patients with Borderline Personality Disorder?

Anthropogenic noise has been shown to affect marine animals in various ways, this may have fitness consequences at individual and population level. This thesis aims to increase insight into the quantification of sound-induced behavioural responses that are relevant to fitness, and into factors that…

Valérie Pattyn, Assistant Professor at Leiden University, researched

My research focuses on theories of the sublime by the Berlin Enlightenment philosophers Moses Mendelssohn (1729–86) and Johann Georg Sulzer (1720–79).

Do large deletions represent a risk during CRISP/CAS9-mediated genome editing in plants?

Which intervention technique is more effective in reducing public speaking anxiety in children aged 9 – 12 years, exposure or restructuring cognitions?

The lipid matrix in the stratum corneum (SC), the upper layer of the skin, plays a critical role in the skin barrier. The matrix consists of ceramides (CERs), cholesterol (CHOL) and free fatty acids (FFAs).

Anthropogenic noise negatively affects wildlife in a wide range of taxonomic groups.

Tin electrodeposition applications have rapidly evolved in the past 25 years.

Promotor: Prof.dr. P.G.L. Klinkhamer, Co-Promotor: T.J. de Jong

How to make a quantitative assessment of the relative contribution to toxicity of ions and particles? Is the toxicity of nanoparticles related to their size or shape? Which physicochemical property of nanoparticles is an appropriate dose metric of nanoparticles?

Promotor: Peter Stevenhagen

This thesis investigates the relations between metabolism and anatomy through the use of Magnetic Resonance Imaging (MRI).

On 19 December 2019, Reza Eftekhar defended his thesis 'The Role of the Domestic Law of the Host State in Determining the ratione materiae Jurisdiction of Investment Treaty Tribunals: The Partial Revival of the Localisation Theory'. The doctoral research was supervised by Prof. E. de Brabandere.

Science, Leiden Institute of Chemistry (LIC)

Science, Leiden Institute of Chemistry (LIC)

Promotor: H.J.M. de Groot, Co-Promotor: A. Alia

Freshwater and brackish water ecosystems are arguably the most vulnerable ecosystems on earth, due to concentrated human developments in and around them. The Pontocaspian (PC) region located at the border of Europe and Asia contains a variety of brackish water ecosystems and unique inhabitants, known…

Science

This book is about what happens when two people meet. Its main aim is to present an account of intersubjectivity.

Promotor: S.J. Edixhoven

Three types of PLCs are studied, varying on the dimension of autonomy of and interdependency between teachers: Joint work, Aid and assistance and Shared practices.

In the Phenomix Medical Delta Field Lab, which was officially opened on Thursday 9 July, scientists, healthcare institutions and businesses work together to develop innovative applications in the field of metabolomics. This research field makes it possible to determine which drugs will be effective…

Source: Mediators Inflamm (2014)

Advanced sensing techniques require graphene with high quality and well-controlled surface chemistry.

Bringing the theoretical world of mathematics and computer science to more applied research areas. That is what Daan Pelt, assistant professor at the Leiden Institute of Advanced Computer Science (LIACS) is trying to achieve with the methods he is developing as a solution to challenges in image proc…

Demonstration experiments are a potentially powerful instrument to improve the micro-macro thinking of students in secondary education. Therefore we want to design a practical and generative approach to assist teachers to develop lessons with a demonstration experiment.

PhD Defence

Barbarism: from the 18th century to the present.

On March 12th, Jonathan Brown succesfully defended his doctoral thesis and graduated. The Leiden University Centre for Linguistics congratulates Jonathan on this great result.

The redox-conversion reaction of metal-disulfide and metal-thiolate complexes are important, as they may shed light on electron-transfer reactions that often occur in Nature.

The risk that conspiracy theories could incite a broad movement against the established political order is virtually non-existent. This is what researcher Jelle van Buuren of the Institute of Security and Global Affairs concluded in his PhD dissertation.

Can epigenetic changes explain associations between early life stress and health outcomes?

What is the optimal way to utilise intermediate assessment in improving study behaviour and study success?

Science, Institute of Environmental Sciences (CML)