To limit the effects of climate change, global average temperature since pre-industrial measurements are to be kept well below 2 °C preferably even at 1.5 °C.

Microbiome composition of the spermosphere and the rhizosphere of wild and modern bean accessions grown in an agricultural and a native soil from Colombia was characterized by metagenomics and cultivation-dependent approaches.

Plants are colonized by an astounding number of microorganisms that can provide different life-support functions, including nutrient acquisition and protection against (a)biotic stresses like drought or pathogen attack.

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.

The car we buy is made out of thousands of components, which are produced using different types of materials. These materials need to be sourced from different places, sent to production facilities and assembled. Once the car is dismissed, the components need to be taken care of by either reusing, recycling…

The rapidly increasing commercial application of metallic nanoparticles within products will inevitably enhance the amount of NPs being released into soil.

Low-carbon (LE) technologies have a significant potential to reduce the total carbon emissions in China.

This thesis aims to investigate the effect of tripartite interaction between microbial inoculants, the plant, and herbivore insects on the rhizosphere microbiome and volatilome. We investigated the rhizosphere microbiome and volatilome of tomato plants exposed to insect herbivory and/or inoculated with…

The application of nanomaterials in industrial processes and consumer products provides many societal benefits, but can also lead to the release of nanomaterials into the environment. The work in this dissertation aims to provide insights into the potential environmental impacts that may follow from…

This project aims to identify, quantify and map the exposure of Dutch national monuments to four climate change effects: flooding, waterlogging, drought and heat.

Promotor: G.R. de Snoo, Co-promotor: H.H. de Iongh, C.J.M. Musters

How presence, abundance and enzymatic activities of AM and EM fungi differently affect soil carbon sequestration processes?

This thesis examines the impacts and challenges of water use of electric power system. This thesis found that there are large differences in water use of electricity technologies, with hydropower and thermal power being two large water users.

This article discusses the impact of symbolic gender representation on the willingness of citizens to coproduce.

Do natural soundscapes affect migratory decisions of fishes moving up and down rivers and is this process disturbed by vessel sounds?

This project aims to provide evidence-based knowledge on the conditions for successful anti-corruption activism in Ukraine.

On the 23rd of September, George Saad successfully defended a doctoral thesis and graduated. The Leiden University Centre for Linguistics congratulates George on this achievement!

What are the impacts of digital educational resources on rural teachers and their teaching in China?

A study of Dutch Fort at Galle, Sri Lanka

This project aims at investigating the multidirectional effects of forced and voluntary forms of migration in the ancient Near East.

Promotor: J.A. van Veen, Co-promotor: E.E. Kuramae

Promotor: G.R. de Snoo, W. Kustiawan, Co-promotor: H.H. de Iongh

A new publication on changes in the relationship between news and their public in Chile

This paper describes two synthetic lipid models designed to replace human stratum corneum (SC) in studies of the impact of volatile organic chemicals on the molecular organization of the skin barrier lipids.

A MSCA Global Fellowship that aims to explore the socioeconomic and environmental implications of a Latin America circularity transition, and its impact on the EU and global economy.

Source: The AAPS journal, Volume 16, Issue 4, pp. 681-684 (2014)

On 10 March 2021, Pieter Huizing defended his thesis 'Parallel Enforcement of International Cartels and Its Impact on the Proportionality of Overall Punishment'. The doctoral thesis was supervised by Prof. T.R. Ottervanger.

The article investigates the origins of Indo-European languages in Asia by 65 coupling ancient genomics to archaeology and linguistics.

Political scientists John Gerring (University of Texas, Austin) and Wouter Veenendaal (Universiteit Leiden) evaluate the political implications stemming from the size of a political unit – on social cohesion, the number of representatives, overall representativeness, particularism ('pork'), citizen…

The aim of this project is to investigate the (cost)effectiveness of two innovative forms of trauma-focused therapy for patients with childhood abuse related PTSD. The ultimate goal is to improve quality of care and contribute to treatment innovation for this severely ill target population.

What role do parent-child interactions play in the development, maintenance and treatment of depression in young people?

Promotor: Prof.dr. G.R. de Snoo, Co-promotores: Dr. ing. M.G. Vijver, J.P.M. Vink

How do women and men living in logging concessions in Solomon Islands experience the impacts of logging during and after logging operations? This project assesses how and why industrial logging affects men and women differently. Using insights from an ethnographic case-study of the logging industry…

This research project focuses on the extended documentation and investigation of these non-Austronesian (‘Papuan’) languages.

Promotor: Prof.dr. A. P. IJzerman, Co-Promotor: Dr. L.H. Heitman

Promotores: C.A.J. Knibbe; J.N. van den Anker, Co-promotores: H.P.A. van Dongen; B. van Ramshorst

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 use of N fertilizers has increased worldwide in the past century. While this increased input of N has increased food productivity, it has also contributed to decreases in biodiversity, soil quality and environmental health, including increases in greenhouse gas emissions.

This publication of the School of Advanced Study of the University of London is one of the outcomes of the Landscapes of Early Roman Colonization project and the Colonial Rural Networks project (NWO, Dr. T.D. Stek). The volume, edited by Tesse Stek and prof. Gert-Jan Burgers of the Free University Amsterdam,…

How did disability become a global concern? In this project we will identify the contribution of international agencies, governmental and non-governmental organizations and, just as importantly, disabled people themselves, to the IYDP and by showing the connections, interactions and entanglements between…

Promotor: Prof.dr. H.J.A. Rottgering, Co-promotor: David Sobral

The soil ecosystem consists of the largest reservoir of biodiversity on Earth.

Charisma K. Lepcha (PI, Sikkim University), Pradyut Guha (co-PI, Sikkim University), Rajib Sutradhar (co-PI, Christ University Bangalore) and Erik de Maaker (Leiden University) have been awarded a two-year grant of USD 18.000 to conduct research on the impact of ‘green farming’ on the sensitive mountain…

The 21 universities of the League of European Research Universities have an enormous economic impact: more than 900,000 jobs and 71.2 billion euros in 2014. Each job at a member university results in 6 jobs elsewhere. Leiden University is a member of the League.

The research question is that unconscious perseverative cognition (UPC) is responsible for a considerable part of cardiovascular (CV) activity that occurs even in the absence of threats and other stressors that one may encounter in one’s daily life.

To achieve societal impact, you need to do more than solely writing academic articles. That's the idea behind the Master Honours Class 'Leiden Revisited', in which students demonstrated with art how residents at the outskirts of Leiden experience the city. 'It's the perfect way to start the debate.'