With our research and teaching, we help make the world a better place. We join in the academic and public debate, and seek answers to economic and social issues – not just at the local and regional level but at the global one too.

Leiden Law School is at the heart of society.

With our research and teaching, we help make the world a better place. We join in the academic and public debate, and seek answers to economic and social issues – not just at the local and regional level but at the global one too.

NIMAR, like other university institutes, shares reliable, high-quality academic knowledge, the product of teaching and research, with society.

Leiden University joind in the second edition of the Impact Fair. This was for anyone who wants to contribute to the world of tomorrow and is seeking inspiration.

Research from the Living Lab is important for society. For example, scientists from the Living Lab discovered that the pesticide thiacloprid is up to 2,500 times more harmful to insects than was thought on the basis of regular lab research. Partly because of this discovery, the European Commission decided…

This award recognises MSc graduates whose thesis research goes beyond advancing scientific knowledge to create real-world impact in life sciences, health sciences, biotechnology, or environmental health sciences, with a data science component. The award includes €2,500, freely usable by the recipien…

This award recognises PhD candidates and postdoctoral researchers whose research goes beyond advancing scientific knowledge to create real-world impact in life sciences, health sciences, biotechnology, or environmental health sciences, with a data science component. The award includes €3,000, freely…

In developing cooperation on research and education with China, Leiden University focuses on projects that promote innovation, have an impact on science, and benefit society

Leiden University and the city of The Hague are working closely together to increase the impact of our research and education in order to contribute as much as possible to the development of the city.

Metal production is not only energy-intensive and a major source of greenhouse gas (GHG) emissions, but is also associated with other impacts affecting human health and ecosystems.

This study focuses on the local level impacts of a highly globalised industry: the international trade in tropical timber.

PathOS aims to contribute to a better understanding and measurement of Open Science impacts and their causal mechanisms. This is pivotal in order to develop effective OS policy in the EU (European Union). It will do so by collecting concrete evidence of OS effects, by studying the pathways of OS practices,…

The central goal of academic publishers is the dissemination of the results of research and scholarship. Their audiences can generally be divided into two categories. Academic publications are firstly made accessible to the scholarly community, so that these texts can form the input for new academic…

Below are some examples of ACPA projects that have a meaningful impact on arts and society. This page will be refreshed every now and then, presenting projects that exhibit how artistic research can significantly contribute to the way we perceive, understand, and relate to the world and to other pe…

The majority (80%) of e-waste generated globally are recycled informally in developing countries.

The Hub for Impactful and Engaged Research (HIER) is a coordinating network connecting Leiden University, Technical University Delft, Erasmus University Rotterdam, Leiden University Medical Center and Erasmus Medical Center to strengthen civic engagement across the province of South Holland.

A New Technology-Based Firm (NTBF) is a significant enabler of job creation and a driver of the economy through stimulating innovation.

On 9 January 2019, Marieke Wierda defended her thesis 'The Local Impact of a Global Court: Assessing the Impact of the International Criminal Court in Situation Countries'. The doctoral research was supervised by Prof. dr. C. Stahn en Prof. dr. L.J. van den Herik.

Plastics have become an integral part of modern society due to their versatility and durability.

Freshwater biodiversity has been threatened by eutrophication due to excessive nutrients in the environment. Releasing the freshwater species from such pressures requires efforts from industry and manufacturers to avoid emissions to vulnerable and high-risk regions.

A cautious response to a crisis or terrorist act avoids the creation of a culture of fear. This is another way to reduce our vulnerability to terrorism.

Promotores: Prof.dr. G.R. de Snoo & Dr. R. Heijungs

This thesis aimed to investigate the impact of exposure dynamics, relative contributions of ENPs(particle) and ENPs(ion), and dosing regimens on the toxicity of ENPs varying in different physico-chemical properties, on the composition and functioning of soil microbial communities.

This project aims to explore the environmental impact of early Roman expansion (4th/3rd century BC) through a program of dating and ecological sampling of traces of field systems (centuriations).

An analysis of researchers' global mobility reveals that limiting the circulation of scholars will damage the scientific system.

This special issue of the International Forestry Review talks about how logging really affects society.

Kantorowicz & Voigt examine whether federal systems, with their multiple levels of government, lead to higher constitutional compliance

In this consortium CWTS (Leiden University) collaborates with two Swedish SMEs: Monocl AB and Recorded Future AB. Monocl AB delivers intuitive analysis software to Life Sciences professionals in support of strategic decisions and improvement of business performance. Recorded Future AB is an organization…

This article examines the effects of introducing proportional representation (PR) in Polish local elections on women’s political representation.

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…

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…

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

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

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

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

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

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

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…

Changing individual and collective behavior is critical to addressing the climate and ecological crisis. Environmental psychology is thus well-positioned to contribute knowledge to guide impactful climate action.

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!

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

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.