Promotores: G.W. Canters, T.J. Aartsma

PNAS publication on protein encounter complexes

Huub de Groot is professor in Biophysical Organic Chemistry. With his team he works in the field of photosynthesis and artificial photosynthesis. The molecular basis for photosynthesis is formed by protein complexes and organelles that contain chlorophyll molecules. The antenna systems herein capture…

This thesis describes a study from both a theoreticaL and an experimental point of view.

Promotor: Huub J.M. de Groot, Co-promotor: Francesco Buda

Multicellular giant algae Chara species have been widely used in physiological studies for decades.

In condensed matter systems electron-electron interactions, negligible in everyday metals, can dramatically alter the electronic behavior of the system. Examples of such altered behavior include high-temperature superconductivity and modulation of the electron density.

Electron microscopy has become an extremely important techniquein a wide variety of elds.

How do we experience electronic music? How does electronic music operate on perceptual, cognitive and affective levels? What are the common concepts activated in the listener’s mind when listening to electronic music? Why and how are these concepts activated?

Artificial photosynthesis has recognised potential to produce green and sustainable fuels from earth-abundant resources such as water, carbon dioxide (CO2), and sunlight.

From The Cognitive Continuum of Electronic Music:

What is the Electronics Department?

Single-molecule spectroscopy has become a powerful method for using organic fluorescent molecules in numerous applications.

Promotor: Prof.dr. J.P. Abrahams, Prof.dr. M. van Heel

Promotores: Prof.dr. G.W. Canters, Prof.dr. T.J. Aartsma

The type-IV secretion system (T4SS) is a machinery able to transfer DNA and proteins between bacteria and in certain cases also to eukaryotic cells.

The aim of this facility is to accelerate biomedical research by providing access to advanced light and electron microscopy and by sharing expertise about sample preparation, imaging modalities, data storage and image analysis.

Bacterial chemosensory arrays are protein assemblies that are the key structural and functional component for motile bacteria to sense their internal or environmental chemical signals.

Atoms and molecules are the basic units of matter. If we keep dividing a bar of gold or a glass of water into smaller parts, at the end we are left with a single gold atom or a water molecule.

Promotor: Prof.dr. J.M. van Ruitenbeek, Prof.dr. R.M. Tromp

The principal aim of this research is to explore the confrontation between voice and electronics. These are often seen as being radically different from one another and many characteristics seem to be in opposition between them. However, they also have characteristics in common and they can influence…

This thesis revolves around the electronic spectroscopy of molecules in the laboratory and the search for the carriers of the diffuse interstellar bands (DIBs).

An objective of this research was to achieve direct, well-defined and non-rate-limiting electron transfer between respiratory enzymes and the electrode surface by means of 'Q-wires'.

Promotor: H.J.M. de Groot, Co-Promotor: A. Alia

Materials with strongly correlated electrons show some of the most mysterious and exotic phases of quantum matter, such as unconventional superconductivity, quantum criticality and strange metal phase.

Promotor: Prof.dr. C.W.J. Beenakker

The dissertation describes TEM experiments on heterogeneous catalysts.

Artificial photosynthesis aims to produce fuels from solar energy using chemical processes. In semi-artificial photosynthesis, a hybrid approach is taken using both chemical and biotechnology approaches. We aim to develop hybrid systems between light-harvesting nanoparticles and redox-enzymes (oxidoreductases)…

Over the past decades the role of writing in the development of human civilizations has been the subject of much discussion. The adoption and development of literate skills has been linked to many developments in human history, be they cultural, social or even cognitive.

My research focusses on site-specific compositional and performance practices of music for organ and electronics and their musical-spatial values.

In the search for sustainable energy solutions, the idea of artificial photosynthesis has been proposed as an approach with which to use water and sunlight to produce hydrogen.

n this PhD thesis, the recombination of different atomic lattices in stacked 2D materials such as twisted bilayer graphene is studied. Using the different possibilities of Low-Energy Electron Microscopy (LEEM), the domain forming between the two atomic layers with small differences is studied.

What is the effect of practicing with electronic books on reading skills for grade 1 students?

Beenakker

Promotor: J. Zaanen, Co-Promotor: V. Juricic

As a virtually inexhaustible source, solar energy plays a major role in future global energy scenarios.

To be admitted to the master’s degree programme in September 2023, you need to register in Studielink. You need to submit another application for admission, this time for the MSc Psychology. Your application must be completed by the 15th of May 2023. If you want to start the master’s degree programme…

Are you currently enrolled in an applied sciences programme and are you considering a university master? At Leiden University you are more than welcome. A master at University will provide more depth in knowledge and you are able to specialise in a great number of areas of expertise. With the right…

Protein–protein complexes are formed via transient states called encounter complexes that greatly influence the formation of the stereospecific complex.

Promotor: Prof.dr. T.J. Aartsma, Co-promotor: R.N. Frese

The main aim of this project is to investigate the various ways in which language categorizes possession, how these are morphosyntactically encoded across and within languages, and how this distinction should be represented in a model of the language faculty.

Physicist Daniël Geelen has developed a new microscope that uses low-energy electrons. Those are less harmful to biological and organic materials. Geelen defends his PhD thesis on May 31st.

A full overview of MacBio PhD Theses.

PhD defence

For the first time, physicists have visualized the ‘melting’ of electrons inside a special class of insulators. It allows electrons to move freely and turns the insulator into a metal and possibly later into a superconductor. Publication in Nature Physics.

Promotores: Prof.dr. H.P. Spaink & Prof.dr. P.C.W. Hogendoorn, Co-promotor: Dr. M.J.M. Schaaf

The inverse electron demand Diels-Alder (IEDDA) pyridazine elimination emerged in 2013 as a new bioorthogonal reaction and constitutes a prime example of what is now known as dissociative bioorthogonal chemistry. The research described in this Thesis aims to develop synthetic strategies which enable…

Building a Deep Cross-media Transfer Network to extract visual relations that relieve the problem of insufficient training data for visual tasks.

Transferring to the Bachelor's programme in Psychology at Leiden University

Promotor: Prof.dr. M. Ubbink