196 search results for “x-ray” in the Public website
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Sergi Campos JaraFaculty of Science
s.campos.jara@lic.leidenuniv.nl | 071 5272727
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Boudewijn Lelieveldt: 'AI can help, but not replace, doctors and other healthcare providers'
‘I would never want to be treated by a computer,’ says Boudewijn Lelieveldt, Head of Radiology at the Laboratory for Clinical and Experimental Image Processing and Medical Delta professor in the Bioinformatics group at Delft University of Technology. No matter how intelligent a system, we have to continue…
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DSE 2.0: Towards Optimal Design of Complex, Distributed Cyber Physical Systems
DSE 2.0 concerns research on DSE techniques for complex dCPS
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Research
Computers are becoming ever more powerful and are taking on more complex tasks. The Leiden Institute of Advanced Computer Science (LIACS) contributes to revolutionary scientific research and applies the latest inventions in the field, offering answers to today’s questions of society.
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Aarts Lab - Magnetic and Superconducting Materials
In the Aarts lab we combine or structure materials, mostly in thin film form, in such a way that the hybrid has different and novel properties or functionalities.
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Macromolecular Biochemistry
Macromolecular Biochemistry is a section of the Leiden Institute of Chemistry at Leiden University, comprising the PIs Marcellus Ubbink, Remus Dame, Lars Jeuken, Anne Wentink, Sebastian Geibel, Anjali Pandit, René Olsthoorn, Alia, and Steffen Brünle.
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Ancient Charm
The aim of ANCIENT CHARM was to develop neutron-imaging techniques and the associated equipment, and help establish neutron imaging as a mainstream archaeological analytical technique. In particular, one of the goals was a new imaging technique which called neutron resonant capture imaging combined…
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Research lines
Current research at the Skin Barrier and Vaccination group.
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Digitally leafing through invisible books
Researchers from Leiden and Delft have found a way to look inside early-modern bookbindings. An x-ray technique has allowed them to search for remains of medieval manuscripts hidden inside the bindings. After the Middle Ages many manuscripts were recycled, their pages pasted inside bookbindings to provide…
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Staring at stardust
Dust particles in space form the basis for new stars and planets. But what do these particles consist of and how do they behave? Sascha Zeegers studied this. PhD defence 1 November.
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Towards nano-MRI
By detecting the tiny forces between a micrometer sized magnet and the spins of hydrogen nuclei, we can do MRI with a volume resolution that is approximately 12 orders of magnitude better than a conventional MRI.
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Research
Research at the Catalysis and Surface Chemistry group is comprised of the following research themes:
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Vision and Imaging
On the basis of the characteristic aspects of a picture, certain computers can tell us what the picture is showing. They can learn this in the same way that young children are able to learn to recognize images. Further improving these techniques opens the way to a whole range of new applications. Biology…
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Metals in Catalysis, Biomimetics & Inorganic Materials
Coordination chemistry is the chemistry of metal atoms
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Computer Science at Leiden University
Leiden Institute of Advanced Computer Science (LIACS)
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Astronomers analyse huge, hot filament of missing normal matter
A European team of astronomers, led by Leiden-based researcher Konstantinos Migkas, has uncovered a large filament — a long, thread-like structure — of hot gas connecting four clusters of galaxies. This filament is made up of what scientists call the warm-hot intergalactic medium.
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Van Marum Colloquia
The "Van Marum Colloquia" are a collaborative lecture series between the LION and LIC institutes, focusing on fundamental and applied surface science.
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Cracking the code: why platinum electrodes corrode
An atomic vandal has finally been caught! Scientists from Leiden University and the Department of Energy’s SLAC National Laboratory have uncovered the mysterious cause behind the rapid corrosion of platinum electrodes. This breakthrough paves the way for more affordable green hydrogen production and…
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It takes two (or more) to build a telescope
How do stars and galaxies form? What is dark matter? To answer these and other questions, we need increasingly large telescopes. And to build these, we need international partnerships. A series on the impact of collaboration.
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Habitable planets around pulsars theoretically possible
It is theoretically possible that habitable planets exist around pulsars, rotating neutron stars. Such planets must have an enormous atmosphere that convert the deadly X-rays and high energy particles of the pulsar into heat. That is stated in a scientific paper by astronomers Alessandro Patruno and…
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From atoms to the cosmos: ‘Everything in the universe is connected’
Exploring the largest structures in the universe by looking at the tiniest particles? Lydia Stofanova, PhD candidate at Leiden Observatory and SRON Netherlands Institute for Space Research, dives into this intricate connection. In her PhD research, she explored how elements like oxygen influence the…
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First step in converting solar energy using ‘artificial leaf’
Two things are needed to produce fuel from sunlight: an antenna that harvests light, and a light-driven catalyst. The most efficient antennae contain bacteria. An international team headed by Huub de Groot imitated them and discovered how they function.
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Latest hardware for computer research on medical imaging
The LIACS Media Lab has received a research grant from the worldwide leading graphics hardware company NVIDIA. The grant exists of newly developed hardware utilizing thousands of processors. LIACS researchers will use it to investigate deep learning in understanding imagery from sources such as MRI…
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Leiden University strengthens its focus on Chemical Biology and Medicinal Chemistry with seven new group leaders
Tackling key challenges of Chemical Biology and Medicinal Chemistry to aid drug discovery is one of the focus areas of Leiden University. To this end, the Leiden Early Drug Discovery & Development network (LED3) was established by the Leiden Institute of Chemistry (LIC), the Institute of Biology Leiden…
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Subsidies for high-grade research facilities
Three projects with Leiden researchers are to receive a subsidy from NWO for the construction or renovation of large-scale research facilities. They will be working on electron microscopy, an X-omics initiative and an X-ray telescope. The projects are part of the National Roadmap for Large-Scale Scientific…
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Alumni
Former PhD, Bachelor and Master students of the Van Exter Lab
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Metals for Catalysis and Sustainability
Central in coordination and organometallic chemistry is the synthesis of new chelating ligands, the synthesis and characterization of metal complexes with these ligands, and the study of their properties. An important goal in my research is to create understanding of the relation between the structures…
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Surface and Interface Science
The nanoscale structure of a catalyst under reaction conditions determines its activity, selectivity, and stability. For the production of sustainable energy and materials, new catalysts are needed. By understanding the structure-activity relationships of catalysts under reaction conditions, insight…
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Hit and Lead Optimization
The goal of hit and lead optimization is to optimize suitable chemical starting points that can modulate a drug target. The methods and technologies used are similar to those in Hit Discovery, but once the compound has shown activity in an animal model, it moves from 'hit' to 'lead.'
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Secrets of the skull
The Research Institute for Mathematics & Computer Science in Amsterdam hosts a unique X-ray machine that creates 3D scans of the most diverse objects. This allows them to reveal details that remain hidden in regular scans. In a series of articles they showcase examples of what happens in the lab. Leiden…
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Newton-telescope finds missing intergalactic material
Astronomers from, among others, SRON and Leiden Observatory have discovered long-sought intergalactic gas with ESA’s space telescope XMM-Newton. This gas is one of the pieces of the puzzle to map the total amount of ‘normal’ matter in the universe. The research will be published in Nature on 21 June…
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Neutrino linked to black hole that devours star
For only the second time ever, astronomers have linked a neutrino to an object outside our Milky Way. These observations were made using telescopes both on Earth and in space. The researchers, including Leiden astronomer Sjoert van Velzen, were able to trace the neutrino to a black hole that is devouring…
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Algorithms can also learn without examples
In donut-shaped buildings, particle accelerators take super-detailed X-ray images. Yet those images are not good enough to learn how to drive on hydrogen for example. Mathematics PhD student Allard Hendriksen has developed an algorithm that improves the images without having to learn from data from…
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Prof. dr. Joost Batenburg awarded with Vici grant 2015
The NWO (The Netherlands Organization for Scientific Research) awarded prof. Joost van Batenburg with the Vici grant 2015 for his research project ‘Real-time 3D Tomography’.
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Launch International Journal of Multimedia Information Retrieval
Leiden University and Springer launched International Journal of Multimedia Information Retrieval.
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Renewable Energy
The transition to new and renewable energy sources should be completed by 2050. Researchers in various disciplines at Leiden University are conducting unique research that will help us make this transition and reduce CO2 emissions.
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NWO grant for optimal design of complex and distributed cyber-physical systems
NWO awarded a grant for novel research on Complex and Distributed Cyber-Physical Systems (CPS). The grant will fund a four-year research project in which they hope to devise a method to explore and find optimal designs for CPS. Todor Stefanov, Associate Professor at the Leiden Institute of Advanced…
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Lieuwe Vinkhuijzen third in VERSEN Master Thesis Award
PhD candidate Lieuwe Vinkhuijzen received the VERSEN Master Thesis Award 3rd prize for his master’s thesis on quantum computing. ‘A forward-looking thesis that solves problems in software engineering; not in the next decade, but beyond’, according to the jury.
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High-tech imaging reveals rare precolonial Mexican manuscript hidden from view for 500 years
Researchers from the University of Oxford’s Bodleian Libraries and from universities in the Netherlands have used high-tech imaging to uncover the details of a rare Mexican codex dating from before the colonisation of America.
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Flurry of new discoveries as incredible new image revealing 4.4 million galaxies is made public
Over a seven year period an international team of scientists has mapped more than a quarter of the northern sky using the Low Frequency Array (LOFAR), a pan-European radio telescope. From Leiden, Astronomer Timothy Shimwell and Huub Röttgering, among others, are involved. It reveals an astonishingly…
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Computational tools reveal secrets of 17th-century sealed letter
In a world first, an international team of researchers has read an unopened letter from Renaissance Europe – without breaking its seal or damaging it in any way. Nadine Akkerman, Reader in early modern English literature at Leiden University, is co-author of the article that appeared on 2 March in Nature…
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NWO grant Nadine Akkerman for Signed, Sealed, & Undelivered research
Nadine Akkerman and her co-applicant David van der Linden (University of Groningen) are thrilled that “Signed, Sealed, & Undelivered 2.0: Revealing Hidden Letters” was awarded an Internationalisation in the Humanities grant from NWO.
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Free symposium reveals surprising uses of AI
Artificial Intelligence (AI) can help humans in many different ways: from customised medicine and self-driving cars to preserving our cultural heritage. On 4 April academics from Leiden will talk about the achievements and opportunities of AI. A research dossier on AI is also online now, which looks…
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Ongoing excavations at Les Cottés (near Poitiers, France)
Les Cottés is one the rare site in western Europe with occupations in sequence by the very last Neandertals and the first anatomically modern humans.
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Awards and Grants 2018
An overview of awards and prizes granted to our staff and students in 2018, as well as special appointments and royal distinctions.
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Back to the source
Provenance and distribution of raw materials
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Dick Stufkens Prijs 2019 awarded to electrochemist Thom Hersbach
The Dick Stufkens Prize 2019 for the best PhD thesis of the Holland Research School of Molecular Chemistry (HRSMC) will be awarded to Thom Hersbach. In his thesis, Hersbach presents a thorough analysis of cathodic corrosion. His comprehensive research, on which he graduated with the distinction cum…
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Nadine Akkerman wins Dr Hendrik Muller Prize 2021
Nadine Akkerman, associate professor of early modern English literature is receiving the Dr Hendrik Muller Prize 2021 for her work.
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Rik Mom receives an NWO Tenure Track and returns to Leiden
Through an NWO grant, chemist Rik Mom has received a tenure track position at the Leiden Institute of Chemistry, where he obtained his PhD cum laude in 2017. Mom will study the storage of sustainable energy by means of splitting water. Using new methods, he will investigate on an atomic scale which…
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Strong impetus for South Holland space research
The SRON space research institute, Leiden University and the TU Delft are appointing six researchers to jointly carry out space research. The research will focus on exoplanets, the evolution of structure in the Universe and technology for developing new pioneering space instruments.