This thesis is comprised of three chapters covering the theme of studying semistable varieties by looking at their dual combinatorial objects.

Duaal promoveren Werken en promoveren Promoveren in deeltijd Promoveren naast je werk Buitenpromovendi Buitenpromovendus

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.

Het Dual PhD Centre bestaat om een bijzondere groep promovendi aan de Universiteit Leiden extra ondersteuning te bieden: de duale promovendi.

orientatiefase pre-PhD fase PhD fase Buitenpromovendi buitenpromovendus duaal promoveren promoveren promoveren Leiden Universiteit

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.

Duaal promoveren Werken en promoveren Promoveren in deeltijd Promoveren naast je werk Buitenpromovendi Buitenpromovendus Buitenpromotie Part-time promoveren Part-time promotie Part-time promotie Promoveren naast je werk Promoveren naast mijn werk

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.

In my research, I used a comparative wood anatomical approach to address wood evolution of the (largely) tropical flowering plant families Apocynaceae and Sapotaceae.

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

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

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

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

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

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

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. M. Schilthuizen

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.

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

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 role of the interfacial environment during electrochemical reactions has been increasingly valued, especially for those reactions involving protons or hydroxyl ions.

Green hydrogen is produced via a process called water electrolysis. During electrolysis water is split into oxygen and hydrogen.

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

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

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

Dit artikel illustreert hoe de term 'dual use' geassocieerd is geraakt met een bredere dichotomie tussen 'legitieme' en 'illegale' doeleinden.

The goal of this thesis is to understand how interfacial parameters, such as the addition of organic additives, bulk pH or metal cations of the electrolyte, affect the relevant electrocatalytic reactions, i.e. electrochemical CO2 reduction reaction or hydrogen evolution reaction.

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.

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.

Dr. Helen Pluut heeft een artikel gepubliceerd in het gerenommeerde tijdschrift Organizational Behavior and Human Decision Processes (OBHDP). Dit in samenwerking met Remus Ilies (National University of Singapore), Petru Curşeu (Open Universiteit en Babeş-Bolyai University) en Yukun Liu (University of…

Als alles naar verwachting gaat, zal Vasileios Karakasis zijn proefschrift op donderdag 15 oktober met succes verdedigen. Daarmee wordt niet alleen voor Vasileios een mijlpaal bereikt, maar ook voor het Dual PhD Centre (DPC).

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

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.

Dit proefschrift onderzoekt de reactie van de Europese Unie op het groeiende probleem van desinformatie. Het gebruikt deze casus om kritisch te analyseren hoe samenlevingen informatie-uitdagingen zoals

Promotor: Prof.dr. P.G.L Klinkhamer, Co-promotor: K. Vrieling

Op 14 december vierde het Dual PhD Centre van de Universiteit Leiden haar tienjarig bestaan met een posterpresentatie, beschouwingen, muziek en een receptie aan de Haagse Schouwburgstraat. In het bijzijn van decaan Erwin Muller, oud-rector Douwe Breimer, oprichter Adriaan in ’t Groen en directeur Johannes…

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This dissertation is part of a broader research project that revolves around unraveling the evolution of balanced lethal systems.

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…

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…

Promotor: Prof.dr. E.F. Smets

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

Promotor: E. Gittenberger, Co-promotores: L.P. van Ofwegen; B.W. Hoeksema

Het College van Bestuur heeft Dr. Johannes Magliano-Tromp met ingang van 1 mei 2016 benoemd tot directeur van het Leiden University Dual PhD Centre.

Het College van Bestuur heeft Dr. Johannes Magliano-Tromp met ingang van 1 mei 2016 benoemd tot directeur van het Leiden University Dual PhD Centre.

Evolution acts via mutations in amino acid sequences. Substitution of essential amino acids leads to a nonfunctional protein. l.