In this project, we use social network analysis to analyze the behavior of users in online forums and associated marketplaces over time.

Ecotox is located in an ambitious surrounding at the Leiden University. It is an initiative of both institutes Institute of Environmental Sciences (CML) and Institute of Biology Leiden (IBL).

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

Detection of cerebral beta-amyloid (Abeta) by targeted contrast agents remains of great interest to aid the in vivo diagnosis of Alzheimer's disease (AD). Bis-styrylbenzenes have been previously reported as potential Abeta imaging agents.

Associate professor at the Natural Products Laboratory, Institute of Biology, Leiden University - the Netherlands

Promotor: M. Danhof Co-promotor: O.E. Della Pasqua

The mycorrhizal symbiosis is among the most widespread species interactions on Earth⁠. This thesis focuses on orchid mycorrhiza, a unique mycorrhizal type that has caught scientists’ attention for centuries⁠.

On the 6th of November, Virginia Beavon Ham successfully defended her doctoral thesis and graduated. The Leiden University Centre for Linguistics congratulates Virginia on this achievement.

What motivates people to provide help to, or seek help from other groups? And what are the psychological consequences of receiving help from another group?

On the 4th of June, Menghui Shi successfully defended a doctoral thesis and graduated. The Leiden University Centre for Linguistics congratulates Menghui Shi on this achievement!

Each month, we publish an article showcasing how social science research and education contribute to solving societal challenges. Researchers, lecturers, students, and societal partners work together to make knowledge accessible and to make a difference. Through open science and engaged education, we…

In this thesis, we aimed to better understand the underlying mechanisms involved in TNBC progression and metastasis formation and discover new targets to reduce breast cancer related deaths.

In this article, Samir Negash, PhD candidate at the Institute of Public Administratation, discusses the discrepancy in European countries between the measured impact of immigration on the welfare state and how this impact is perceived by citizens.

In this thesis, the role of mast cells in atherosclerosis and novel therapeutic strategies to inhibit atherosclerosis progression are discussed. The first part of the thesis specifically focuses on the relation between mast cells and advanced human atherosclerotic plaque characteristics.

The plant hormone auxin regulates plant growth and development through polar cell-to-cell transport-generated maxima and minima. PIN FORMED (PIN) auxin efflux carriers determine the direction of this auxin flow through their asymmetric placement on the plasma membrane (PM).

The external tissues of plants and animals are colonized by microbial communities termed microbiota. When organisms are exposed to environmental pollutants, these substances will therefore encounter microbiota at the exposure interface.

This dissertation studies the Asymptotics of Bayesian nonparametric inference for Gaussian linear models.

On 17 December 2018, Dejian Kong defended his thesis 'Civil Liability for Damage caused by Global Navigation Satellite System'. The doctoral research was supervised by Prof. dr. P.M.J. Mendes de Leon.

In this article Fisher, Klein & Codjo introduce the FOCUSdate Project and they show how the sentiment data provide unique abilities to analyze Russia's and Iran's reactions to US policies and events and NGO human rights campaigns.

Source: Mediators Inflamm (2014)

Our cantilevers have a low intrinsic damping rate: this enables us to measure with low noise, since damping is proportionate to noise. However, when the magnet is close to the surface of a sample we want to study, we measure a much higher effective damping rate. This is caused by magnetic interaction…

Ferritin is a spherical metalloprotein, capable of storing and releasing iron in a controllable way. It is composed of a protein shell of about 12 nm and within its cavity, iron is stored in a mineral form.

This thesis advances our understanding of lipid uptake, a vital first step in lipid metabolism, by developing innovative click chemistry-based tools to study how immune cells internalize lipids.

Helping people, groups and policymakers navigate the social transitions of our time.

Single-layer graphene (SLG) has attracted considerable interest as a proton exchange membrane for direct methanol fuel cells (DMFCs), owing to its atomic thickness, mechanical robustness, and unique proton permeability.

Research report January 2020. Supported by the lectorate ‘Music, Education and Society’, research group ‘Making in Music’, Royal Conservatoire The Hague

Sonorous phenomena are always on the verge of becoming something else. As it unfolds, sound constitutes spaces, mediates presence, articulates time. Furthermore, it may prompt emotions, generate awareness, organise patterns of behaviour or trigger a sense of belonging. As sound becomes audible, it is…

This research aims to fully recall these lost sound aspects of the eighteenth century and is, therefore, a study that passionately advocates the diversity of musical experience in the context of historical performance practice.

PhD defence

PhD defence

PhD defence

Man-made sounds in and around the oceans stress marine life and have an impact on marine species and ecosystems by changing the underwater acoustic climate. Hans Slabbekoorn from the Institute of Biology Leiden pleads for technical solutions to mitigate problems of noise pollution. Science review paper…

Hans Slabbekoorn, researcher at the Institute of Biology Leiden, is from the 16th to the 26th of July on board of the Pelagia, the Dutch national sea research vessel, which is currently on a collaborative mission for the National Initiative Changing Oceans (NICO). Slabbekoorn will study the effects…

Mazène Hochane and Xueying Fan have won the fourth annual LION Image Award. They created a detailed colour image of a human kidney in development.

PhD defence

PhD defence

On the 1st of October a new project funded by the Joint Industry Programme (JIP) started at the IBL on the potentially negative effects of sound on fish. Behavioural biologist and bioacoustic specialist Dr. Hans Slabbekoorn leads the international research team.

Willemijn Heeren has, together with dr. Lei He (Department of Linguistics, Tübingen & Center for Forensic Phonetics and Acoustics, Zürich), received a research grant from the International Association for Forensic Phonetics and Acoustics to start a pilot project on “Between-speaker variability in dynamic…

On the 15th of October, IMARES and IBL co-organized a symposium on underwater acoustics related to research on fish and marine mammals.

The current projects of the Molecular Physiology group focus on proteins of the endocannabinoid system, kinases and antibacterial targets. MSc- and BSc-students can contact Jessica van Krimpen-Kraaijenoord to apply for research internships.

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

In what ways can visual art play a vital role in countering the discriminating stigma experienced by transgender communities?

Drawing on insights from past and contemporary scholars and world leaders, the report explores the concepts of a new social contract, a new global deal, and networked and inclusive multilateralism introduced recently by Secretary-General António Guterres to help the United Nations better grapple with…

We aim to understand ion homeostasis in the model eukaryote S. cerevisiae.

In order to gain a better insight into the basis of the rapid jasmonic acid (JA)-mediated stress response, an integrated approach using a targeted high-resolution mass spectrometry-based (HRMS) platform, was conducted to monitor the metabolism of JA using the model system of cell suspension cultures…

Examining mediation and moderation.

Leiden University has participated in an international study carried out by the CARMENES consortium, which has discovered two small, terrestrial planets around Teegarden’s Star. The planets have masses similar to Earth and their temperatures could be mild enough to sustain liquid water on their surf…

This article assesses Russian rhetoric toward Ukraine from 2004 to 2019 by analyzing statements by the Russian Ministry of Foreign Affairs.