1,271 search results for “dark energy” in the Public website
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Cosmic tomography with weak gravitational lensing
We explored the Universe using weak gravitational lensing, a phenomenon that occurs when light from distant galaxies is bent by the gravitational fields of closer cosmic objects, much like how a lens distorts light.
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Untangling cosmic collisions: a study of particle acceleration and magnetic fields in merging galaxy clusters
On the largest scale, the Universe resembles a cosmic spiderweb. Most galaxies coexist in small groups within the threads of this web. At the nodes of the threads are enormous groups of galaxies forming the largest structures in the universe still held together by gravity: clusters of galaxies.
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Painting and Drawing
Arts and leisure, Arts and leisure
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PhD Course Microscopy
This is a yearly event where we move in one week from the physics of light through the composition of the microscope, fluorescence microscopy and end up with some image analysis All the lectures are backed by practicals to really put your obtained knowledge into practice
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Harmonic duality : from interval ratios and pitch distance to spectra and sensory dissonance
This dissertation derives from the development of tools for algorithmic composition which extract pitch materials from sound signals, analyzing them according to their timbral and harmonic properties, putting them into motion through diverse rhythmic and textural procedures.
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Shaping Massive Galaxies: the structural evolution of galaxies across
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.
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(New) Fascism Contagion, Community, Myth
Fascism tends to be relegated to a dark chapter of European history, but what if new forms of fascism are currently returning to the forefront of the political scene?
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Sterile neutrinos in the early Universe
Promotor: A. Achúcarro, Co-promotor: A. Boyarsky
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Caging ruthenium complexes with non-toxic ligands for photoactivated chemotherapy
The main goal of the research described in this thesis was the development of new photoactivated chemotherapy (PACT) ruthenium(II) complexes bearing a non-toxic photolabile ligand.
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Functional characterization and unraveling the Gene Regulatory Networks (GRNs) of HD-Zip transcription factor HB40 (and HB22) in Arabidopsis
In this Ph.D. thesis, we characterized two novel upstream regulators of JUB1, HB40, and HB22, in Arabidopsis thaliana. In Chapter 2, we described functions of HB40 in modulating growth and development via the regulation of JUB1 and GA inactivation genes GA2OXs.
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Leiden University team European runner-up in Manfred Lachs Space Law Moot Court competition
The Manfred Lachs Space Law Moot Court competition was held in Vienna between 8 and 12 April 2024. This event was organised by the European Centre for Space Law in collaboration with the University of Vienna. The team comprised David Eagleson, Solène Flambeaux and Aleksandra Spyra, current students…
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Constraints on large-scale implementation of BioSolarCells, Early stage assessment of environmental value propositions
What performance criteria does a new technology have to fulfill in order to be added to the list of future energy options and what constraints exist in terms of broad market penetration?
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Leiden Institute of Chemistry
The Leiden Institute of Chemistry (LIC) is the basis for research and collaborations of the Leiden chemistry groups. Chemistry is the central science enabling a healthy future in a sustainable society. Chemistry researchers at Leiden University take a fundamental approach in finding tailored solutions…
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Excavating Fossilized Data
A cross-cut analysis of the ties between university research and fossil industries.
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Statement on collaboration with the fossil fuel industry
Leiden University will not enter into any new research partnerships with companies in the fossil fuel industry that are not intensively and demonstrably committed to achieving the goals of the Paris Agreement.
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The role of water in hydrogen electrocatalysis
Promotor: M.T.M. Koper, Co-promotor: L. Juurlink
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Sustainable buildings
During the development of the Humanities Campus, many aspects of sustainability are combined. For example:
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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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Metastability for low-temperature Kawasaki dynamics with two types of particles
Promotor: W.Th.F. den Hollander, Co-promotor: F.R. Nardi
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Frontiers in surface scattering simulations
Theorists have recently made substantial progress in simulating reactive molecule-metal surface scattering but still face major challenges. The grand challenge is to develop an approach that enables accurate predictive calculations of reactions involving electronically excited states with potential…
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Guts and Brains
An Integrative Approach to the Hominin Record
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Sustainable campus
Leiden University is working on a green, circular campus, with a significant reduction in energy consumption by 2050 as its goal, as elaborated in the Route Map Energy Transition Buildings, published in 2022.
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Chemically Accurate Simulation of a Prototypical Surface Reaction: H-2 Dissociation on Cu(111)
Methods for accurately computing the interaction of molecules with metal surfaces are critical to understanding and thereby improving heterogeneous catalysis.
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BioSustain
Examining the sustainability aspects of biotechnology, especially those related to the production of ethanol from biomass.
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Sustainable Chemistry and Biotechnology
If mankind wants to survive into the 22nd century, we will need to change the way we live drastically. The human impact on our planet is everywhere, we are changing the atmosphere, the oceans and the land, leading to global warming, climate change, loss of biodiversity and pervasive pollution. There…
- About this minor
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The evolution of Chinese industrial CO2 emissions 2000–2050: A review and meta-analysis of historical drivers, projections and policy goals
The emissions of the Chinese industrial sector alone comprise 24.1% of global emissions (7.8 GtCyr−1 in 2015). This makes Chinese industrial emissions of unique national and international relevance in climate policy. This study reports a literature survey that quantitatively describes the evolution…
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Structure dependence of molecular reactions on surfaces
The research presented in this thesis makes use of small molecules (as H2 , D2 and O2 ) on well-defined single crystal surfaces (flat Pt(111), flat Cu(211) and curved Pt(111)) to elucidate the role of surface structure and degrees of freedom in the reactant in specific surface reactions.
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Nanoparticle – redox protein biohybrids
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)…
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Photosynthetic light reactions at the gold interface
Promotor: Prof.dr. T.J. Aartsma, Co-promotor: R.N. Frese
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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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Why Leiden University?
The Leiden Institute of Chemistry (LIC) offers a unique tailor-made programme in Chemistry. You can customize the programme to your own interests and ambitions with the help of your own personal mentor. Your study will focus on either Chemical Biology or Energy & Sustainability. During the Master's…
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Can astronomers limit climate change?
Can astronomers mitigate climate change? This is what Leiden astronomer Leonard Burtscher and his colleagues discussed at the annual meeting of the European Astronomical Society. For the second year in a row, the meeting was online. And according to Burtscher, it should stay that way. During a special…
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Plant-based diet can help unlock technology to harness huge CO2 removal
Bioenergy with carbon capture and storage (BECCS) is a promising method for removing carbon dioxide (CO2) from the atmosphere and simultaneously generating energy. Yet this method is controversial, as it may require a great deal of land and water. Researchers at Leiden University have now proposed a…
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Sustainability courses and programmes
Leiden University offers its students a wide range of bachelor's, master's and minors that explore sustainability or climate. Here, you find an overview of those programmes in the academic year 2020-2021.
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Master Projects
The following master research projects are currently available.
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NExt ApplicationS of Quantum Computing (NEASQC)
The NEASQC project brings together academic experts and industrial end-users to investigate and develop a new breed of Quantum-enabled applications that can take advantage of NISQ (Noise Intermediate-Scale Quantum) systems in the near future. NEASQC is use-case driven, addressing practical problems…
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Education
Education & outreach
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Operando research in electrochemistry
The central theme of Rik Mom’s research group is to identify what the electrode-electrolyte interface looks like when electrocatalysis is taking place. Using specialized forms of Raman and X-ray spectroscopy, we study the chemical state and bonding environment of the electrode surface and near-surface…
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Research
Research at the MCBIM group is comprised of the following research themes:
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Liveable campus
In 2021, Leiden University will develop a new Sustainability Vision 2030. This vision for the future focuses on the primary tasks of the University: integration and visibility of sustainability in our education and research.
- Structure and Programme
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Ben van Werkhoven
Science
b.j.c.van.werkhoven@liacs.leidenuniv.nl | +31 71 527 2727
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Morena Skalamera
Faculty of Humanities
m.skalamera@hum.leidenuniv.nl | +31 71 527 1982
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Do nudgers need budging? A comparative analysis of European smart meter implementation
Sarah Giest, Assistant Professor at Leiden Univeristy, researched the topic of regulatory and market structures that affect nudge implementation by private actors, captured by the ‘budge’ idea.
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Flow: A study of electron transport through networks of interconnected nanoparticles
This thesis describes a study from both a theoreticaL and an experimental point of view.
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A study on PsbS and its role as a pH sensor
Solar energy harnessed by plants and algae has great potential to be converted into biofuels for future generations.
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Accurate Probabilities for Highly Activated Reaction of Polyatomic Molecules on Surfaces Using a High-Dimensional Neural Network Potential: CHD3
An accurate description of reactive scattering of molecules on metal surfaces often requires the modeling of energy transfer between the molecule and the surface phonons. Although ab initio molecular dynamics (AIMD) can describe this energy transfer, AIMD is at present untractable for reactions with…
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Towards in-cell structural study of light-harvesting complexes : an investigation with MAS-NMR
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.
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Selectivity and competition between the anodic evolution of oxygen and chlorine
Sustainable energy from wind and solar is most readily available near the sea.