A5081674977- Species Distribution and Climate Change
- Physics of Superconductivity and Magnetism
- Research Data Management Practices
- Magnetic properties of thin films
- Scientific Computing and Data Management
- Environmental DNA in Biodiversity Studies
- Genomics and Phylogenetic Studies
- Superconducting Materials and Applications
- Ecology and Vegetation Dynamics Studies
- Plant and animal studies
- Forest Ecology and Biodiversity Studies
- Semantic Web and Ontologies
- Catalysis and Hydrodesulfurization Studies
- Biomedical Text Mining and Ontologies
- Magnetic Properties and Applications
- Biofuel production and bioconversion
- Cell Image Analysis Techniques
- Genetics, Bioinformatics, and Biomedical Research
- Advanced Condensed Matter Physics
- Superconductivity in MgB2 and Alloys
- Metal-Organic Frameworks: Synthesis and Applications
- Surface and Thin Film Phenomena
- Biomedical and Engineering Education
- Forensic and Genetic Research
- Food Supply Chain Traceability
Meise Botanic Garden
2020-2024
Field Museum of Natural History
2020-2023
Natural History Museum
2020-2023
Stellenbosch University
2022
Brazilian Agricultural Research Corporation
2022
Universidade de São Paulo
2022
Universidade Estadual de Campinas (UNICAMP)
2022
University of Twente
2022
Universidade Federal de São Carlos
2022
Research Institute for Nature and Forest
2022
Lewis acid Snβ-type zeolites with varying amounts of Brønsted Al in the framework were synthesized using a simple two-step procedure comprising partial dealumination β zeolite under action acid, followed by grafting SnCl4·5H2O dry isopropanol. Characterization thus-prepared Al-containing Snβ (Sn/pDeAlβ) ICP, (pyridine probed) FTIR, and 27Al MAS NMR demonstrates presence AlIII. Tetrahedral acidic SnIV is present, as ascertained combination techniques such EPMA, 119Sn Möβbauer, XPS, UV–vis. A...
Bring in the cleaner! Metal–organic frameworks (MOFs) are able to separate nitrogen and sulfur contaminants from fuel, which may lead production of cleaner fuels (see picture; ppmw=parts per million by weight). The separation ability is shown originate Lewis acidity metal sites MOFs. Detailed facts importance specialist readers published as "Supporting Information". Such documents peer-reviewed, but not copy-edited or typeset. They made available submitted authors. Please note: publisher...
A highly active Sn site with Lewis acid properties is identified in post-synthetically synthesized Sn/DeAlβ catalyst, prepared by liquid-phase grafting of a dealuminated β-zeolite. Though apparently similar active-site structures have been reported for the post-synthetic and conventional hydrothermal Snβ, detailed study electronic structure redox behavior EXAFS, XANES, DR UV–vis, TPR clearly reveals dissimilarities geometry properties. model proposed using contemporary interpretation...
S und N bleiben hängen: Metall-organische Gerüstverbindungen (MOFs) können Treibstoffe von stickstoff- schwefelhaltigen Verunreinigungen befreien (siehe Bild; ppmw="parts per million" nach Gewicht). Die Trennwirkung beruht auf Lewis-sauren Metallzentren in den MOFs.
Composite multiferroics are a new class of material where magneto‐electric coupling is achieved by creating an interface between ferromagnetic and ferroelectric compound. The challenge understanding the chemical magnetic properties such key to achieve good coupling. unique possibilities offered isotope sensitive techniques used selectively investigate interface's chemistry magnetism in Fe/BaTiO 3 Fe/LiNbO systems during application electric field. With large enough field, strong oxidation Fe...
The Latimer Core (LtC) schema, named after Marjorie Courtenay-Latimer, is a standard designed to support the representation and discovery of natural science collections by structuring data about groups objects that those their subcomponents encompass. Individual items within are represented through other emerging or current standards (e.g., Darwin Core, ABCD). LtC classes properties aim represent information describes these groupings in enough detail inform deeper resources contained them....
We studied the exchange-spring behavior in FePt-Fe hard-soft magnetic heterostructures. present a study of spin structure soft Fe layer Fe-FePt bilayers by nuclear forward scattering synchrotron radiation. The orientation moments close to top was determined quantitatively as function soft-layer thickness. show that for few monolayers Fe, magnetically hard FePt pins magnetization out-of-plane direction. With increasing Fe-layer thickness, influence diminishes and cants toward in-plane Fe[001]...
The Pippard coherence length ${\ensuremath{\xi}}_{0}$ (the size of a Cooper pair) in two extreme type-I superconductors (In and Sn) was determined directly through high-resolution measurement the nonlocal electrodynamic effect combining low-energy muon spin rotation spectroscopy polarized neutron reflectometry. renormalization factor $Z={m}_{cp}^{*}/2m$ (${m}_{cp}^{*}$ $m$ are mass pair electron, respectively) resulting from electron-phonon interaction, temperature-dependent London...
Natural history collection data available digitally on the web have so far only made limited use of potential semantic links among themselves and with cross-disciplinary resources. In a pilot study, botanical collections Consortium European Taxonomic Facilities (CETAF) therefore begun to semantically annotate their data, starting people, link them via central index system. As result, it is now possible query collectors across different automatically variety external The system being...
Societal Impact Statement Primary occurrence data ( ‘ what, where, when ’ ) enable study of species distribution and diversity, facilitating reactions to societal challenges from food security climate change mitigation. Scientific names integrate information are made concrete through reference a type specimen. Research conservation planning requires timely open access this data. Around 2000 vascular plant described each year, many narrowly endemic face threats. Twenty‐four percent those...
DNA collections are a valuable type of Natural Science collection, enabling the validation past research, serving as source for new genomic studies and supporting ex situ conservation. The DiSSCo Flanders collection working group, aiming to advance "unlock" their collections, identified need for: 1) actively sharing best practices regarding management collections; 2) providing guidance on how bring theory into practice. By combining practice examples from within group with available...
When sequencing molecules from an organism it is standard practice to create voucher specimens. This ensures that the results are repeatable and identification of can be verified. It also means sequence data linked a whole host other related specimen, including traits, sequences, environmental data, geography. therefore critical explicit, preferably machine readable, links exist between specimens sequence. However, such do not in databases International Nucleotide Sequence Database...
We investigate the link between superconductivity and atomic vibrations in Nb${}_{3}$Sn films with a thickness ranging from 10 to 50 nm. The challenge of measuring phonon density states (PDOS) these has been tackled by employing technique nuclear inelastic scattering ${}^{119}$Sn isotopes reveal Sn-partial states. With support ab initio calculations, we evaluate effect reduced film on PDOS. This approach allows us estimate changes superconducting critical temperature ${T}_{c}$ induced...
To unravel the effects of phonon confinement, influence size and morphology on atomic vibrations is investigated in Sn nanoislands cluster-assembled films. Nuclear resonant inelastic x-ray scattering used to probe densities states nanostructures which show significant broadening features compared bulk behavior. Supported by ab initio calculations, attributed can be described within damped harmonic oscillator model. Contrary expectations based previous research, appearance high-energy modes...
Tens of millions images from biological collections have become available online over the last two decades. In parallel, there has been a dramatic increase in capabilities image analysis technologies, especially those involving machine learning and computer vision. While mainstream consumer applications, it is still used only on an artisanal basis community, largely because corpora are dispersed. Yet, massive untapped potential for novel applications research if collection objects could be...
Biodiversity is a data-intensive science and relies on data from large number of disciplines in order to build up coherent picture the extent trajectory life earth (Bowker 2000). The ability integrate such different disciplines, geographic regions scales crucial for making better decisions towards sustainable development. As Information Standards (TDWG) community tackles standards development adoption beyond its initial emphases taxonomy species distributions, expanding impact engaging wider...
The BiCIKL project is born from a vision that biodiversity data are most useful if they presented as network of can be integrated and viewed different starting points. BiCIKL’s goal to realise by linking infrastructures, particularly for literature, molecular sequences, specimens, nomenclature analytics. To make those links we need better understand the existing their limitations, nature hold, services provide how interoperate. In light aims, in autumn 2021, 74 people community engaged total...
We describe an experimental setup for conversion electron Mössbauer spectroscopy (CEMS) at low temperature. The is composed of a continuous flow cryostat (temperature range 4.2-500 K), detector housing, three channel multipliers, and corresponding electronics. demonstrate the capabilities with CEMS measurements performed on sample consisting thin enriched 57Fe film, thickness 20 nm, deposited silicon substrate. also exchangeable adaptations (lid holder) which extend applicability to emission...
This Data Management Plan outlines a comprehensive strategy for handling, storing, and sharing of data generated by digitisation projects the herbarium at Meise Botanic Garden with Index Herbarium code BR. Its purpose is to establish clear guidelines both staff external users, specifying terms governing usage storage. It aims prioritise FAIR principles (Findable, Accessible, Interoperable Reusable), ensure responsible management, facilitate long-term preservation, uphold legal ethical...
This investigation uses biodiversity data cubes derived from the datasets mobilised by Global Biodiversity Information Facility (GBIF), to conduct an analysis of sex ratios ducks across Europe. Encompassing over 4 million occurrences extracted nearly 5000 datasets, this study elucidates distribution patterns various species, focussing on temporal and spatial dynamics. The aim is highlight availability open its potential usefulness in research monitoring wild organisms, particularly sexual...
The DoeDat platform was launched by Meise Botanic Garden in 2018 to capture label data from imaged herbarium specimens inviting volunteer contributors (Groom et al. 2018). It has since facilitated of other natural history collections (Helminger 2020, Mitrache 2023), as well digitised content various disciplines, such historical photographs, posters and postcards. Volunteers may simply transcribe handwritten and/or typed text, but often also interpret the sparse scattered information on...
Effective management of natural science collections is crucial to maximizing their scientific value. They often contain invaluable items like type specimens and reference material, data that contributes significantly our understanding biodiversity, ecology, evolution. Research institutes harbor several smaller collections, which are seldom managed properly, as collection not core business, because they directly connected the community. Recognizing these challenges, DiSSCo Flanders...
The DiSSCo (Distributed System of Scientific Collections) Flanders consortium, with one the set goals being "maturing" (i.e., optimizing management of) and unlocking publishing) their DNA collections, identified 1) need for actively sharing best practices on collections; 2) a guidance how to bring theory into practice. During project, collection working group was created. is open all biodiversity-related collections associates in Belgium, including those diverse roles such as researchers,...