To gain more insight into the evolutionary development of orchid flowers and fruits, the orchid species Erycina pusilla was studied. The evolutionary origin of the median petaloid sepal, the callus on the labellum, and the stelidia was studied.

The study of orchid flowers, fruits, and inflorescences is crucial due to the remarkable diversity of orchid species and their unique adaptations to pollinators and seed dispersers. However, our understanding of the evolution and development of these organs within the orchid family remains limited.

This multidisciplinary minor provides students with knowledge on how and why humans became the way they are. The minor focuses on the evolution of the species Homo sapiens from other hominin lineages and animal ancestors, and on the various factors shaping this process. Not only is human evolution of…

In this course, you will develop an understanding of evolutionary processes and their formative power. You will see how evolution has shaped biodiversity, and continuously influences our daily life.

Galaxies in the local Universe fall into two main categories of spirals and ellipticals. In this Thesis, we explore the structural evolution of galaxies into this bimodal distribution.

Balsaminaceae is a diverse plant family characterized by a huge floral morphological diversity.

The growing demand of energy indicates that global energy resources in the form of fossil fuels will not be sufficient in the future. In order to solve potential future energy problems development of a sustainable hydrogen economy is highly desirable.

The soil-dwelling, filamentous bacteria of the genus Streptomyces are renowned for their production of useful secondary metabolites including antibiotics. The work described in this thesis provides new insights on the role and regulation of antibiotic production and resistance in these bacteria.

Promotores: Prof.dr. A.G.G.M. Tielens, Prof.dr. L.B.F.M. Waters (UvA), Prof.dr. C. Dominik (UvA)

Promotor: S.M. Verduyn Lunel, Co-promotor: O. van Gaans

Congres/symposium

Sustainable energy from wind and solar is most readily available near the sea.

Promotores: Prof.dr. M. Franx, Prof.dr. P.G. van Dokkum (Yale University)

Electrocatalysis allows for storing electricity or converting it into chemical bonds, producing chemical building blocks and fuels using renewable resources.

The thesis is about the study of shell evolution of the Hydrocenidae of the genus Georissa. This thesis started with a general overview on the evolutionary process of animals due to ecological changes.

Promotor: Prof.dr. H.J.A. Rottgering

Promotor: Prof.dr. M. Schilthuizen

This interdisciplinary minor addresses sustainabilty challenges from a systems perspective, and investigates ways to sustain society within planetary boundaries.

One of the most important puzzles in modern astrophysics is the nature of dark matter.

We have examined sequences from the ligand-binding domain of the nicotinic acetyl choline receptor (nAChR) in 148 vertebrate species. We are in interested in this receptor because the α-neurotoxins of many venomous snakes binds to this receptor in its location at the neuromuscular junction in all ve…

Bicarbonate buffer is largely found in nature due to its ability to regulate pH variations around neutral values. As the pH changes, so does the speciation of the buffer.

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The human body consists of hundreds, perhaps thousands of different types of cells, each with different morphologies and functions, despite having the same genome.

Promotie

Promotor: S.M. Verduyn Lunel, Co-promotor: O.W. van Gaans

The development process of any software has become extremely important not just in the IT industry, but in almost every business or domain of research.

Let op: bachelorstudenten van de Faculteit der Rechtsgeleerdheid kunnen vakken uit het eigen curriculum niet opvoeren voor deze minor. Je kunt alleen de gebonden keuzevakken volgen en opvoeren die geen onderdeel uitmaken van je eigen bachelorprogramma.

Bestuursbureau

Promotor: H.J.A. Rottgering, Co-Promotor: R.J. van Weeren

Wil je weten welke invloed opvoeding binnen en buiten het gezin heeft op de ontwikkeling van het kind? Kies dan deze specialisatie!

This thesis has shed light on some of the ways in which the local electrolyte composition can differ from the bulk and how these changes in the local reaction environment can determine the activity and/or selectivity of two important electrocatalytic reactions, namely, electrochemical CO2 reduction…

Planets are formed in disks of gas and dust around young stars.

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This thesis investigates the structural evolution and assembly of galaxies since the first few billions years after the big bang.

Pulsars were first discovered in 1967 and since then the population has grown and expanded over several wavelengths.

Plants produce an astonishing variety of secondary metabolites (SMs) which are thought to play vital roles in the fitness of plants through ecological interactions.

In onze eenjarige masteropleiding leer je hoe je het dagelijks leven van kwetsbare groepen - zowel in Nederland als wereldwijd - kunt bestuderen, en hoe je ze binnen de complexe processen van sociale en globale ontwikkeling kunt plaatsen.

Studievoorlichting

De masterspecialisatie Digital Media in Human Development gaat over kansen en uitdagingen van digitale media in opvoeding en onderwijs.

Voor wie geïnteresseerd is in de relatie tussen neuro-cognitieve en biologische factoren enerzijds en leren, gedrag en emoties anderzijds.

Het organiseren van diversiteit is een van de grootste uitdagingen van nu. Etnische, raciale, religieuze en culturele verschillen staan wereldwijd op de agenda, dikwijls omdat deze leiden tot gewelddadige conflicten. In deze masterspecialisatie kijk je waarom en hoe deze conflicten ontstaan en welke…

Het volgende rapport bespreekt onze enquête over de UN Sustainable Development Goals die werd verspreid onder onderzoekers aan de Universiteit Leiden in november 2021.

Kom naar onze online en oncampus events om ons beter te leren kennen!

Waarom zijn niet alle kinderen even gevoelig voor variaties in hun sociale omgeving?

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The Advanced Master's specialization Peace, Justice and Development at Leiden University examines the legislation that governs international relations in an increasingly complex, interdependent global society. The study covers a wide range of legal disciplines like criminal law, human rights law, investment…

Making a dynamic substance stock model in order to conduct scenario analyses and make forecasts.

The explosive radiation and diversification of the advanced snakes (superfamily Colubroidea) was associated with changes in all aspects of the shared venom system. Morphological changes included the partitioning of the mixed ancestral glands into two discrete glands devoted for production of venom ormucous…

Promotores: Prof.dr. P.M. Brakefield, Prof.dr. B.J. Zwaan (Wageningen Universiteit)