The genetic information of all living organisms is contained in their DNA. Cells modify the degree of DNA compaction by epigenetics, which largely determines what genes are read out and which genes are transcriptionally silent.

In human cells, a meter-long DNA is condensed inside a micrometer-sized cell nucleus. Simultaneously, the genetic code must remain accessible for its replication and transcription to functional proteins.

Promotor: Prof.dr. H. J. A. Röttgering, Co-Promotor: M. Haverkorn

Promotor: H.J.A. Röttgering, Co-promotor: M. Haverkorn

Promotor: T. Schmidt, Co-promotor: S. J.T. van Noort

The elementary excitations of magnets are called spin waves, and their corresponding quasi-particles are known as magnons. The rapidly growing field of Magnonics aims at using them as information carriers in a new generation of electronic devices, (almost) free of electric currents.

There are many interpretations of quantum mechanics, and ultimately experiments are needed to verify or falsify these interpretations.

In this thesis, we show how MRFM can usefully contribute to the field of condensed-matter.

In this thesis, we describe the latest advances in SQUID-detected Magnetic Resonance Force Microscopy (MRFM).

Promotor: T.H. Oosterkamp

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

All life on earth contains DNA, which is used to store biological information. Organisms compact their DNA in order for it to fit inside their cell(s).

Binnen het Graduate Programme van Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO) is de aanvraag voor de 'Netherlands Magnetic Resonance Research School' gehonoreerd. Deze onderzoeksschool is een van de 18 gehonoreerde aanvragen. Vier Leidse Graduate Schools zijn gehonoreerd.

Huub de Groot

Wiskunde en Natuurwetenschappen

This thesis investigates the relations between metabolism and anatomy through the use of Magnetic Resonance Imaging (MRI).

Promotor: A. Achúcarro, Co-promotor: A. Boyarsky

Triplet superconductivity refers to a condensate of equal-spin Cooper pairs (pairs of electrons with equal spin).

De Leidse natuurkundige Maarten Kruithof heeft ontdekt hoe ons DNA zich telkens weer feilloos weet op te vouwen en ook weer weet te ontvouwen. In zijn proefschrift toonde hij aan dat het DNA opgevouwen wordt in één lange, zeer flexibele spiraalvorm.

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

Light-Harvesting Complex II (LHCII) is responsible for light absorption and excitation energy transfer in plants and photosynthetic algae, while in high light it undergoes conformational changes by which it quenches excitations to prevent photodamage.

A plasma is an ionized gas with very low electrical resistivity. As such, magnetic field lines are 'frozen in' and move with the fluid. Magnetic field lines that are linked, knotted and tangled, cannot be undone by the fluid motions.

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

The challenge of achieving fast quantification in metabolomics is the presence of severe matrix effects during the MS analysis of complex samples.

The thesis mainly contributes to the characterization of Majorana fermions as they appear in the Condensed Matter context.

Promotor: C. W. J. Beenakker, Yu. V. Nazarov, Co-promotor: J. Tworzydlo

Promotor: Prof.dr. M. Ubbink

Promotie

By growing in a soil plants change the biotic and abiotic properties of the soil in which they grow.

The recently introduced nature-originated deep eutectic solvents, so-called natural deep eutectic solvents (NADES) are considered as truly green solvents, which composed of natural ingredients found abundantly in organisms.

This thesis presents the results of a study on the interfaces of insulating oxides with and without the insertion of a magnetic layer.

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Promotor: S.M. Verduyn Lunel

Promotor: T. H. Oosterkamp

Geometric phases lead to a nontrivial interference result when an electron's different quantum mechanical paths choices encircle a magnetic coil in an Aharonov-Bohm experiment.

Promotie

Alireza Mashaghi van het Leiden Academic Centre for Drug Research (LACDR) zal met behulp van de modernste technologie verkeerd gevouwen eiwitten onderzoeken die een rol spelen bij spierdystrofie. Zijn doel: tot nieuwe inzichten komen die in de toekomst leiden tot nieuwe therapieën. Mashaghi ontvangt…

Wiskunde en Natuurwetenschappen, Leiden Academic Centre for Drug Research (LACDR)

Promotores: Prof.dr. D. Bouwmeester, Prof.dr. A. Fiore (TU Eindhoven)

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In this work, we investigate the minute circular dichroism effects of single nanoparticles.To this aim, we apply photothermal imaging with a polarization-modulated heating beam.

In this thesis, I studied the origin and evolution of the non-thermal radiation in merging galaxy clusters.

This thesis covers various applications of topology in condensed matter physics and quantum information.