The primary aim of this project is to recover, order, and assess Persian Epic Cycle material in order to provide the field of Iranian studies with the first comprehensive and balanced analysis of the form and contents of the epics within the Persian Epic Cycle.

Integrating life cycle assessment (LCA) with life cycle costing (LCC) offers the opportunity to simultaneously analyze the environmental and economic aspects of product alternatives, for the integration of which a unified computational has been proposed by Heijungs et al. (2013) [1]. The project aims…

Get on your bike… or your tandem, unicycle, electric bike, tricycle, penny-farthing, rickshaw or road bike! We’re going on a bike trip!

Writing an operational guide to the ISO standards for LCA and related sub-projects.

This thesis discusses several questions regarding the double ramification cycle as a Chow class on the moduli space of stable n-pointed genus g curves using tools from so-called logarithmic geometry.

What is the environmental impact, the human health impact and the life cycle and production costs of the lab, pilot and commercial diffusion of nanowires and nanowire-based photovoltaic technologies?

How effective is eye movement desensitization and reprocessing therapy in targeting epilepsy-related anxiety?

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

What are the key issues in conducting LCA of bioenergy systems? What is the environmental sustainability status of second generation bioethanol? How much would the final results of biogenic carbon neutrality assumptions deviate from the true values based on a complete inventory? How to assess the impact…

Are there significant differences among the environmental impacts resulting form the production of Asian aquaculture commodities and what are the main causes for these?

Researchers at LED3 are working together with biopharmaceutical company Galapagos to develop software for use in early drug discovery (funded by NWO). This software is able to design molecules with several simultaneously optimized characteristics and will also take prediction reliability into consideration…

Leiden University, Department of Economics

How the global distribution of vegetation stands dominated by arbuscular and ectomycorrhizal plants relate to principle aspects of belowground carbon accumulation processes?

A study of the technology, form, function, and use of pottery from the settlements Uitgeest-Groot Dorregeest and Schagen-Muggenburg 1, Roman Period, North-Holland, the Netherlands

To contribute to the body of knowledge aiming at a better coverage of ecosystem service assessment in LCA studies, this thesis dives into the challenges of incorporating existing ecosystem service methods within the impact assessment phase of the conventional LCA framework.

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

The development of new environmentally sound technologies is seen as a key route towards achieving sustainability.

A difficulty of studies on chemical kinetics are the reaction time scales and detection of their intermediates.

LCA has become an important method to study environmental impacts of human activities. Still, there are several methodological issues in LCA that can adversely affect the results reliability.

Promotor: Prof.dr. G.R. de Snoo

Co-ordination Action for Innovation in Life-Cycle Analysis for Sustainability: deepening, broadening and leaping forward the LCA methodology.

The main research question of this thesis was: Can nitrogen cycling on dairy farms on peat soil in the Dutch Green Heart area be improved by adapting management to the nitrogen supply from soil and by using other grassland species and crops without affecting milk production?

In this PhD study, I aim to deepen our understanding of the influence of major mycorrhizal types, namely arbuscular mycorrhizae (AM) and ectomycorrhizae (EM), on the global soil carbon cycle and their potential distribution changes under future environmental shifts.

A bike tour is probably not the first thing that comes to mind when thinking about inequality. However, students of a Master Honours Challenge came up with this and other solutions to tackle local inequalities. Creativity and empathy turned out to be useful ingredients.

On 1 June 2022, Bruno Braak defended his thesis entitled 'Overcoming ruptures: Zande identity, governance, and tradition during cycles of war and displacement in South Sudan and Uganda (2014-2019).' The doctoral research was supervised by Prof.dr. J.M. Otto, Dr.ir. C.I.M. Jacobs, and Dr. C. Leonardi…

The NestWacht project is a Citizen Science collaboration between Science Centre Delft, Naturalis, and the Citizen Science Lab of Leiden University to engage individuals, families and primary schools in Leiden and Delft in scientific research on the impact of climate change on nature in their city, and…

Leiden University is 444 years old, and to celebrate 220 cyclists took to the saddle on 11 May and followed the new 44.4 km route around Leiden, The Hague and the surrounding area.

Mycorrhizas are symbiotic associations between soil fungi and most plant species.

Although the weather in the Netherlands will always be unpredictable, June might be the month to say with certainty that the temperatures will be pleasing enough for a ride on your bicycle. Aside from the benefits for your (mental) health, you will also make a positive impact on the environment. Start…

The research aims at achieving a European consensus on a harmonized LCA approach/framework to be applied in E-mobility sector. The research will focus on needs and gaps in current LCA practices in E-mobility and try to provide solutions for them based on the rich knowledge and experience represented…

The authors provide an approach for eliciting population’s preferences in order to calculate weights for use in the optional weighting step in Life Cycle Assessment.

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…

‘In Hong Kong, the elderly found our popular nature routes boring, so they now cycle our action-packed routes through New York.’ What once started as an assignment for the Master Programme Media Technology, has grown into the international market leader in the field of virtual reality exercises for…

Development & demonstration of low environmental impact innovation and optimization practices in pharma production.

Meet Thomas King, alumnus BA International Studies: ‘I’m currently living in London which is a really amazing experience! I’m a British citizen and I moved to the Netherlands to study BA International Studies back in 2017. I had the best three years ever living in The Hague and studying at Leiden.’

The life cycle of comets near the star Beta Pictoris is similar to that of comets in our own solar system. This is the conclusion of a team of astronomers from the Netherlands, France and Brazil. It seems that, just like in our own solar system, there are fewer comets as the star gets older. The researchers,…

Just like the professional riders from the Jumbo-Visma team, amateur cyclists will soon be able to analyse and improve their performance. Leiden data scientists working with the cycling team are making their smart data model available so that every serious cyclist can keep track of their fitness.

In May and June of 2021, Bachelor 1 and 2 students of the Faculty of Archaeology joined in the excavation at Oss. After the fieldwork itself, a second post-excavations week started in Leiden where each of them participated in small groups conducting archaeological find processing and working on creative…

With a headwind of 80 kilometres per hour, pouring rain and freezing temperatures, Jurjun van der Velde cycles down the Oosterscheldekering. On his traditional Dutch bike with back pedal brake, he is the second PhD student from the faculty to win the title.

The transition to electric vehicles (EVs) reduces vehicle emissions to combat climate change. EVs raise concerns regarding the production of lithium-ion batteries and related emissions; while batteries can also provide energy storage services for the electricity system.

There is a need for alternative methods to replace, reduce and refine (3R) animal experimentation. Combining experimental data from high-throughput in vitro studies with in silico modeling is a promising approach to unravel the effect of chemicals on living cells and to gain a better understanding of…

What performance criteria does a new technology have to fulfill in order to be added to the list of future energy options and what constraints exist in terms of broad market penetration?