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.

Viral hemorrhagic fever (VHF) is a group of acute diseases caused by highly infectious viruses including Ebola, Lassa, Dengue viruses. Its high mortality rate poses high risk to public health, however, studies on VHF have been hampered due to the non-availability of proper models and incomplete knowledge…

For optimization problems, it is often unclear how to choose the most appropriate optimization algorithm. As such, rigorous benchmarking practices are critical to ensure we can gain as much insight into the strengths and weaknesses of these types of algorithms.

Promotor: S.M. Verduyn Lunel

This thesis investigated miniaturized mass spectrometry (MS)-based analytical methods to address challenges in analyzing biomass-restricted biological samples.

Mangaan winnen op de kwetsbare bodem van de diepzee of kobalt delven onder slechte werkomstandigheden in Congo: kritieke materialen die cruciaal zijn voor de energietransitie komen nog vaak met een keerzijde voor mens én natuur. Hoe komt de wereld op een duurzame manier aan voldoende grondstoffen? Leidse…

The ReCiPe methodology for Life Cycle Impact Assessment (LCIA).

Vitamin A or retinol is essential in embryonic development, the visual cycle and the immune system.

Op Leiden University College (LUC) vindt samenwerking met internationale maatschappelijke partners plaats via onderzoek, onderwijs en stages. Dit resulteert in wederzijds waardevolle samenwerkingen met ngo’s, publieke instellingen en internationale partners.

Internationaal geadopteerde kinderen gebruiken niet meer medicijnen dan hun niet-geadopteerde leeftijdgenoten.

Streptomyces are multicellular, Gram-positive bacteria in the phylum of actinobacteria which produce a high amount of bioactive natural products of which the expression is tightly coordinated with the life cycle.

Actinobacteria are Gram-positive bacteria that have a complex multicellular life cycle and are well known for their ability to produce a wide range of bioactive natural products (NPs).

Promotor: Prof.dr. E. Bouwman, Co-Promotor: S. Bonnet

In 2050 moet de overstap naar nieuwe, duurzame energiebronnen zijn voltooid. Wetenschappers van de Universiteit Leiden verrichten vanuit diverse disciplines uniek onderzoek dat bijdraagt aan deze transitie en de reductie van CO2.

Indonesia is experiencing various environmental challenges related to its fast economic growth. Therefore, it is necessary to have measurable and applicable indicators to obtain accurate data and information regarding the costs of adverse environmental impacts arising from economic activities to support…

What is the population size/structure and distribution of tiger and leopard inside the Bardia National Park (BNP) compared with the population outside? What is the movement and home range and conflict pattern in time and space of tigers and leopards inside the BNP compared with outside? What constitutes…

Aim: To develop and enable application of a practical, flexible, user-friendly platform to provide the scientific community with a tool to generate land surface products and its associated uncertainties and exploit these for data-intensive science.

Dit op casestudies gebaseerde Engelstalige boek over multivariate analyse voor gevorderde studenten in de geesteswetenschappen legt de nadruk op beschrijvende, exploratieve analyses van verschillende soorten datasets uit een breed scala van subdisciplines, waarbij het gebruik van multivariate analyse…

As a non-invasive genetic method, eDNA based approaches have become an important component of ecologists' and environmental managers' toolkits for biomonitoring in conservation and an increasingly important source of ecological knowledge.

Waarom dreigen metaaltekorten in Europa? Welke metalen liggen op de zeebodem en hoe haal je die omhoog?

Transplantation of labial salivary glands to the eyelids for patients with dry eye appears to give excellent results clinically.

To meet the rising demand for minerals driven by the global shift to clean energy technologies, ensuring responsible and resilient supply chains is critical. Minerals like cobalt, lithium, and nickel for batteries, neodymium and zinc for wind turbines, and indium for solar panels are essential.

This monograph focuses on clustering of objects in high-dimensional data, given the restriction that the objects do not cluster on all the attributes, not even on a single subset of attributes, but often on different subsets of attributes in the data.

Comparing the global warming potential (GWP) of the service provided by an iRex Digital Reader to the same service provided by an office printer using a scanning LCA.

What would be the environmental performance of the Carbon4PUR technology at industrial scale in the future?

Statistical distributions in LCA and converting between different representations of these distributions.

Van zwarte gaten tot kunstmatige intelligentie en van medicijnonderzoek tot data science: welkom in de fascinerende wereld van de Faculteit der Wiskunde en Natuurwetenschappen. Geregeld geven onze onderzoekers, studenten en gasten publieke lezingen over hun werk. U bent van harte uitgenodigd.

In astronomy, the interpration of observations and measurements plays a crucial role: we rely purely and fundamentally on the information that reaches us as observers. And 80% of all matter in the universe is undetectable directly.

Promotor: Prof.dr. G.P. van Wezel

Supply risks are not new. But the aggravation of power conflicts on the international stage coupled with global shifts towards energy transition and digitalization has triggered the next supply risk research era.