1,762 search results for “quantum mechanisms” in the Public website
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Extreme phenomena in soft materials
What are the mechanics of soft materials (e.g. foam, sand)?
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Spherical mosaics from different tiles
What are 'defects' and mechanical properties of mosaics of different shapes of tiles?
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Growth-induced self-organization in bacterial colonies
Mechanical forces are known to play an important role in bacterial colonies. In this dissertation, we study the self-organization at various stages of growing bacterial colonies, and focus on the mechanical effects of cell growth.
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Bob van de Water
Science
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Master Projects
The following master research projects are currently open in the Bouwmeester group.
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Female Researchers in the Spotlight for Physics Ladies Day
On Friday 28 October, Leiden University organized its annual Physics Ladies Day for female high school students. To mark this festive day, we put the spotlight on four female researchers, who talk about their experiences in physics.
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Secure Multiparty Computation and Secret Sharing
The first book ever on information-theoretically secure multiparty computation
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Fermions and Bosons: Excitons in strongly correlated materials
Promotors: Prof.dr. J. Zaanen, Prof.dr.ir. H. Hilgenkamp
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Working at the Faculty of Science
Working for a top faculty? Discover the vacancies at the Faculty of Science and apply immediately.
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Algorithms
Many important topics in computer science, such as the correctness of software, the efficiency of algorithms and the modeling of complicated systems, depend on sound theoretical underpinnings. In the Theory group, we study these fundamental building blocks and develop verification methods to prove system…
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Open Micro Cavities
We develop open micro cavities to trap light in small volumes and thereby increase the interaction with intra-cavity emitters. Important aspects in this development are the optical penetration in the mirrors, coupling between optical modes, and scattering and clipping losses.
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Emotion regulation in young children with autism
Children with autism spectrum disorder experience serious challenges in social functioning, which threatens their development in many areas of functioning.
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Key innate immune components controlling intracellular infection
Promotor: Prof.dr. H.P. Spaink, Co-promotor: Prof.dr. A.H. Meijer
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Awards and Grants 2019
An overview of awards and prizes granted to our staff and students in 2019, as well as special appointments and royal distinctions.
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Accurate modeling of the dynamics of dissociative chemisorption on metal surfaces
Fundamental understanding of molecular reactions on metal surfaces is important for improving heterogeneous catalysis.
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Research
Our research examines mental health risk and resilience in young people. We do so by integrating cultural, social, cognitive and neurobiological factors and their interactions.
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Quality of instruction in open online education
Open online education has become a highly popular method of education. The current project aims to further our knowledge of how open online courses can be best designed to be consistent with human learning mechanics and facilitate meaningful learning.
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Understanding functional dynamics and conformational stability of beta-glycosidases
Due to their central physiological roles in living organisms, retaining beta-glycosidases have been the subject of tremendous research efforts to examine their structure/function relation using numerous biophysical and biochemical approaches.
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Bioorthogonal Antigens as Tool for Investigation of Antigen Processing and Presentation
In order to be able to develop effective medicine and treatments to prevent or cure autoimmune diseases or cancer we need to understand the mechanisms how they arise and what drives their course.Unravelling the fundamental molecular mechanisms influencing the onset and course of diseases such as allergies,…
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Leiden University celebrates 444th birthday with residents of Leiden and The Hague
Leiden University celebrated its 444th anniversary with a historical procession on 8 February. It celebrated this year’s Dies Natalis in time-honoured fashion with a ceremony in the Pieterskerk, but broke with tradition by sending professors out to primary schools.
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Informal constitutional change
On Thursday 9 november, Reijer Passchier defended his dissertation 'Informal constitutional change'. His supervisor is Professor Wim Voermans.
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Innovative (electro-driven) sample preparation tools for metabolomics study of muscle aging
This thesis focuses on the development of sample-preparation methods for small amounts of samples and applying the developed methods to muscle tissues to investigate the mechanisms involved in sarcopenia.
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Femke Bakker, Hawks and Doves: Democratic Peace Theory Revisited
Is there a causal mechanism underlying the decision to attack another country when on the brink of war? If so, does this mechanism differ between regime-types? Political scientist Femke Bakker (Leiden University) addresses this question from a political psychological and comparative perspective and…
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Structure-reactivity relationships in glycosylation chemistry
In a typical glycosylation reaction, a donor is activated to form a (variety of) electrophilic species which can react with a nucleophilic acceptor, following a reaction mechanism having both SN1 and SN2 character.
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Unraveling the Neural Basis of Self-Esteem in Adolescent Depression
What are the social and neural mechanisms that contribute to fluctuations in self-esteem in healthy adolescents and adolescents with depression?
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Quantitative biology of polar auxin transport and plant development
The availability of complete plant genome sequences together with the ever increasing amount of data on the molecular, cellular and physiological mechanisms of plant development require mathematical and computational models to obtain a complete overview of and generate new insights into the quantitative…
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Governance and Dispute Settlement in the Ireland/Northern Ireland Protocol
In this working paper, Dr. Joris Larik provides an analysis of the governance and dispute settlement mechanisms under the Ireland/Northern Ireland Protocol.
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Precision modeling of breast cancer in the CRISPR era
The molecular mechanisms that instigate a healthy cell to become malignant are fueled by (epi)genetic alterations in so-called driver genes.
- Mathematical Institute
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Development & Disease in Animal Sciences
Animal Sciences’ contributions to the Development & Disease research theme include the mechanisms and evolution of embryonic development, the development of cognitive mechanisms, and animal models for understanding mechanisms of human disease.
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Like me or else...
Nature, nurture and neural mechanisms of social emotion regulation in childhood
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Research
Research in the group Clinical Neurodevelopmental Sciences is focused on understanding and influencing developmental mechanisms in children and adolescents.
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Computational modeling of cellular dynamics in tumor cell migration
Epithelial-mesenchymal plasticity (EMP) and tumor cell migration play an important role in cancer progression, and an improved understanding of the mechanisms underlying these concepts is essential for developing new targeted approaches.
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Inhibitors and activity-based probes for β-D-glucuronidases, heparanases and β-L-arabinofuranosidases
Glycosidases (GHs) are enzymes responsible for the degradation of carbohydrates and play many roles in human health and pathophysiology. Often, abnormal levels of glycosidase activity are markedly linked to human pathologies.
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The Role of Linker DNA in Chromatin Fibers
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.
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Evolution & Biodiversity
Evolution & Biodiversity is one of the four research themes of the Institute of Biology Leiden.
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Experimental Linguistics
How do we process language and speech? How do we integrate information at different levels – intonation, sentence structure, meaning, tone, words, sounds - and how does information at one level interact with information at another level?
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FragmEndoscopy: Medieval fragments in early modern book spines
During the early modern period, many medieval manuscripts were cut up into strips of parchment which were reused to reinforce the bindings of newly printed books. Until recently, these reused pieces of medieval manuscripts only came to light when the early modern book binding was damaged and/or subjected…
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Targeting the adenosinergic system
Adenosine is an endogenous ligand which exerts its action by activating adenosine receptors (ARs), while its circulating levels are controlled via a variety of mechanism and proteins, amongst others the equilibrative nucleoside transporters (ENTs).
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LED3 Lecture: Oxygenases - From Mechanisms to Medicines
Lecture
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Dynamical Gibbs-non-Gibbs transitions: a study via coupling and large deviations
Promotores: F.H.J. Redig, W.T.F. den Hollander
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Education highlights 2023
From educational adventures in the tropics, students building software for real customers, to bacteria that degrade plastics. Scroll through our highlights on educational innovation and the achievements of our students.
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Dissociative chemisorption on transition metal surfaces
The dissociative chemisorption of a molecule on a transition metal surface represents a rate-limiting step in many heterogeneously catalyzed processes, whereby most chemicals are made. In spite of the importance of this reaction, an accurate first principles approach to modeling it does not yet exist.…
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Awards and Grants 2017
An overview of awards and prizes granted to our staff and students in 2017, as well as special appointments and royal distinctions.
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Changing minds in social anxiety: A developmental network approach to neurocognitive bias modification
Which adolescents are more at risk of developing social anxiety disorder later in life?
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Nitric oxide in defence against mycobacterial infection
Can we enhance the capacity of host immune cells to kill mycobacteria via production of reactive nitrogen species?
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R-ELEVATION
How do plant defense genes get activated?
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Cancer Drug Target Discovery
We focus on a better understanding of the mechanisms of cancer drug resistance and metastasis.
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Topic: Placebo effects
The effects of many treatments are determined, to a significant degree, by factors other than the medicine or treatment itself. For example, placebo effects can be equal to the effect size of for example antidepressants or painkillers. Contributing factors are the trust placed in the doctor, the expectation…
- Prof Dr André Kessler