1,359 search results for “single phonons director” in the Public website
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1720‐1840, Rediscovering the lost pedal techniques on harps with a single‐action pedal mechanism
The “harpe organisée”, 1720-1840: Rediscovering the lost pedal techniques on harps with a single-action pedal mechanism, is the title of Maria Christina Cleary's PhD thesis. This is the first monographic study on harp pedal techniques, tracing the historical way to pedal on the early pedal harps with…
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Understanding Single Photon Detectors
Leiden physicists have developed a way to address how accurately a superconducting single photon detector (SSPD) can be characterized by detector tomography. SSPDs are not fully understood, and tomography is a key element to determine how these devices detect light. A better understanding of these detectors…
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Alireza Mashaghi Tabari
Faculty of Science
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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 chemically accurate simulation of molecule-surface reactions
This perspective addresses four challenges facing theorists whose aim is to make quantitatively accurate predictions for reactions of molecules on metal surfaces, and suggests ways of meeting these challenges, focusing on dissociative chemisorption reactions of H2, N2, and CH4.
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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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Leiden physicists detect single nanoparticles in motion
It's pretty hard to spot a single 5 nanometer particle. Leiden physicists pulled it off by turning a 120 nm gold rod into a detector.
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Platinum electrochemistry through a magnifying glass
In most applications, electrocatalysts exhibit a large surface area to volume ratio, for example using nanoparticles.
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Single-use water bottles? Not on our watch.
We, as LUGO, believe that with simple everyday actions we can prevent large amounts of single-use plastic water bottles from entering our oceans.
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Biophysicists unravel exact folding of a single gene
The way genes are folded determines their activity in our body. Leiden biophysicists are now the first to unravel this structure molecule-by-molecule. Publication on December 1st in Nature’s Scientific Reports.
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Sensing drug responses of single cells using optical tweezers
Light can be used to apply forces on single cells. Focused lasers have been used by physicists to tweeze particles and to manipulate them. These so called “optical tweezers” can be used as mechanical phenotyping tools for characterising the mechanics of materials and living objects.
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Grégory Schneider
Faculty of Science
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Surface-structure dependencies in catalytic reactions
Promotor: M.T.M. Koper, Co-Promotor: L.B.F. Juurlink
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Adiabatic Energy Loss in Hyperthermal H Atom Collisions with Cu and Au: A Basis for Testing the Importance of Nonadiabatic Energy Loss
Nonadiabatic energy transfer from the translational motion (T) of a molecule impinging on metal surface to the metal’s electrons may determine whether the molecule can lose enough energy to adsorb or react.
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Single Molecule Detected for Use in Quantum Network
Leiden physicists have managed to detect a single molecule called dibenzoterrylene in a new crystal, and found that it is a candidate component for a quantum network. Future quantum computers will need such a network to work together while maintaining their advantages. Publication in ChemPhysChem jo…
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Sofia de Jong
Faculty of Law
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Quantitative live cell imaging of glucocorticoid receptor dynamics in the nucleus
In this thesis, the focus lies on studying glucocorticoid receptor dynamics in living cells with the aim of understanding how this transcription factor finds its DNA target sites to regulate transcription.
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New Directors of Education IBL
Remko Offringa, Associate Professor in Plant Developmental Genetics, and Associate Professor in Molecular Microbiology Arthur Ram both have been appointed as the new Directors of Education at the IBL. Offringa in the role as Director of Education for the Master program and Ram as Director for the Bachelor…
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Bioengineering and biophysics of viral hemorrhagic fever
Viral hemorrhagic fever (VHF) is a group of acute diseases caused by highly infectious viruses including Ebola, Lassa, Dengue viruses. Its high mortality rate poses high risk to public health, however, studies on VHF have been hampered due to the non-availability of proper models and incomplete knowledge…
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Azure Hiptronics release single and music video 'Ocean's Edge'
Apart from his activities as coordinator of the Academy of Creative and Performing Arts, Rogier Schneemann is co-founder, guitarist and composer of the Dutch-Italian group Azure Hiptronics, originally formed in 2006.
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How our single-celled relatives package their DNA
A group of single-celled organisms organises its DNA in a similar way to higher organisms such as plants, animals, and fungi. However, the way packaged DNA is read out differs between the two related groups, Bram Henneman discovered. PhD defence on 5 December.
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Gold nano-antennas reveal single molecules’ electrochemical properties
Individual molecules are extremely hard to see through feeble fluorescence. Tiny gold nanorods serve as new antennas to intensify their signal 500 times. Publication on 24 February in Angewandte Chemie.
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Human DNA softer than DNA single-celled life
Single-celled organisms have stiffer DNA than multicellular lifeforms like humans and rice. Theoretical physicists managed to simulate the folding in full genomes for the first time to reach this conclusion. Publication in Biophysical Journal on February 7.
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A word from our Director
Dear friends of the NVIC
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Remus Dame
Faculty of Science
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LAPP on Leiden Law Blog about Single-use Plastics Directive
The last blog of Leiden Law Blog of 2018 was written by Ladislav Kováč. He discusses the proposal for the Single-use Plastics Directive of the EU which was agreed upon on 19 December.
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Electrical and magnetic properties of ferritin: electron transport phenomena and electron paramagnetic resonance
Ferritin is a spherical metalloprotein, capable of storing and releasing iron in a controllable way. It is composed of a protein shell of about 12 nm and within its cavity, iron is stored in a mineral form.
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Fluorescence Correlation Spectroscopy on Electron Transfer Reaction: Probing Inter- and Intramolecular Redox Processes
Promotores: G.W. Canters, T.J. Aartsma
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Quantum dot microcavity control of photon statistics
During my PhD research, I studied the photon statistics of light emitted by a microcavity that contains a single quantum dot (QD) on resonance.
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Michiel Hogerheijde temporary programme director MSc Astronomy
Michiel Hogerheijde has been appointed temporary programme director of the Astronomy master's programme from 1 January to 1 September 2024. He takes over the duties of Harold Linnartz, who unexpectedly passed away at the end of December. Hogerheijde combines the position with his duties as programme…
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Hundreds of fossil tree species belong to a single species
Paleobotanist Menno Booi discovered that 250 previously described fossil tree species are objectively not distinguishable; they belong to only one single species.
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Characterization of age-associated immunity in atherosclerosis
Healthy aging is one of the prime goals in today's society and atherosclerosis is among the greatest causes of morbidity in elderly. Cardiovascular disease patients receiving treatment are often of advanced aged and have an aged immune system, which limits translating experimental findings to the pa…
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Photon detection at subwavelength scales
Promotor: E.R. Eliel, Co-Promotor: M.J.A. de Dood
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Prof. dr. Sandra Groeneveld new Scientific Director
Per January 1st 2016 Prof. dr. Sandra Groeneveld was appointed as the new Scientific Director of the Institute of Public Administration.
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Launch of the Canal Cups Expo: No excuse for Single-use
Emily den Boer of LAPP visited the Canal Cups Expo, displaying the plastic cups cleaned up by students after Leidens Ontzet.
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In Search of the Japanese Family: Modernity, Social Change, and Women's Lives in Contemporary Japan
This book project explores the changing dynamics of marriage and family life in postwar Japan based on an examination of the life histories of single mothers.
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Modeling energy conversion dynamics at interfaces
Chemical reactions go hand-in-hand with an energy exchange with the environment in which they take place. Surfaces offer a variety of energy dissipation channels, constituted by the nuclear and electronic degrees of freedom of the atoms at the interface. Aiming at an improved future harvesting of energy,…
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State-resolved studies of CO2 gas-surface reactions
The adsorption of D2 and CO2 on catalyst surfaces is studied using a molecular beam in ultra-high vacuum.
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Meet the new LUCIS director: Nathal Dessing
Meet Nathal Dessing, LUCIS director as of 1 November 2018. Dessing is a lecturer for the Leiden University Centre for the Study of Religion (LUCSoR) and education director at the Leiden University Institute for Area Studies (LIAS).
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Quantum dynamics of H2 on metal surfaces: researching the role of surface atoms
This research focuses on the (Quantum) Dynamics (QD) of the reactive scattering of H2 from metal surfaces.
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Tessa Askamp: new project director Taalmuseum
As of February, Pepijn Reeser steps down as the project director of the Taalmuseum (the Language Museum). Exhibition designer and project manager Tessa Askamp takes over his role.
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A few words from our Director
Dear friends of the NVIC,
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Marcel Schaaf
Faculty of Science
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Saying goodbye to our beloved director: Dr. Rudolf de Jong
It is with great sadness that we announce the passing of our director, Dr. Rudolf de Jong. We extend our deepest condolences to his loved ones. The Institute will be closed the coming week in mourning. Details of a memorial in Cairo will follow soon. Rest in peace, boss. We will miss you.
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A word from the NVIC director
Dear friends of the institute,
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Royal honour for policy director John Kroes
John Kroes received a royal honour from Leiden deputy mayor Julius Terpstra on 20 November. He was appointed Knight of the Order of Orange-Nassau for his exceptional services to the university and his extensive voluntary work for organisations in Leiden and The Hague.
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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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Meet our new NVIC Director: Marleen De Meyer
We are very happy to announce that as of 1 March Marleen De Meyer is our new NVIC Director!
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The Effects of Legal Measures to Empower Supervisory Directors
In their article; The Effects of Legal Measures to Empower Supervisory Directors: Evidence from a Financial Distress Perspective, Santen and De Bos discuss the relationship between the corporate governance structure of a company and its financial performance. Until now studies predominantly hypothesize…
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Dr. Johannes Magliano-Tromp new director Dual PhD Centre
Dr Johannes Magliano-Tromp has been appointed Director of Leiden University Interfacultary Dual PhD Centre The Hague as of 1st May 2016.