cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.15151/esrf-es-1890719968
title: 3D distribution of luminescent materials for the design of brain implant for Parkinson’s disease

description: PhotoBioModulation aims at illuminating a specific brain region to slow down Parkinson’s Disease. In this context, we investigate the potential of RadioLuminescent (RL) devices based on luminescent materials excited by low-energy beta-emitters. Importantly, radioactivity can be easily confined to get a non-radiotoxic device. We performed RL experiments at CEA Saclay by exposing luminescent materials to a radioactive gas atmosphere. The question of producing the maximum amount of photons is critical. Our strategy is to use a mm-sized cylinder that acts as a reservoir for both beta- and luminescent particles (µm-sized luminophores or nm-sized Quantum Dots). The interaction between beta- and luminescent particles must be optimized to get the best yield. Quantifying the 3D distribution of luminescent materials in the host matrix and the dopant distribution within luminescent particles is then mandatory and can only be done using synchrotron-based x-ray holo- and fluorescence tomography.
DOI: 10.15151/esrf-es-1896783276
title: Measurement of grain boundary curvature during grain growth

description: High resolution, time-lapse observation of grain boundary curvature at the intersection of grain boundaries with second phase particles.
DOI: 10.15151/esrf-es-1911915195
title: Temperature dependent XMCD of CCO thin films

description: Bulk CCO undergoes a spin reorientation transition at 29K. Such a transition has yet to be characterized in thin films. We will measure XMCD of the magnetic cations as a function of temperature.
DOI: 10.15151/esrf-es-1912241021
title: understanding the radiation damage of soft matters.

description: understanding the radiation damage of soft matters.
DOI: 10.15151/esrf-es-1830136873
title: The ultrasmall Ni metallic nanoparticles constructed by SOMC for CO2 hydrogenation

description: Ni-based heterogeneous catalysts have attracted attention because of their relatively low cost and intriguing structure-sensitive effects. However, the study into size effect below 2 nm is still lacking since the preparation of sub-2 nm metallic Ni is extremely challenging. Via surface organometallic chemistry (SOMC) method, we have successfully synthesized a series of evenly size-distributed Ni nanoparticles (Ni-NPs) on Al2O3 with the average size from 1.4 nm to 4.3 nm. By conducting ex situ as well as in situ x-ray absorption spectroscopy experiments, we can obtain insight into how the support can stabilize the small size Ni-NPs, and identify the speciation of these Ni catalysts especially under working state. With the combination of in situ XAS with other spectroscopic, microscopic and physico-chemical characterization techniques, as well as the evaluation results on these materials, we will have promising approach to the understanding of the Ni-NPs size effect in CO2 hydrogenation.
DOI: 10.15151/esrf-es-1830137875
title: 3D lattice strain quantifiaction in neutron irradiated steels for fusion energy

description: Iron-chromium (FeCr) alloys are a top candidate for development as structural materials within Demonstrator fusion reactors. Examples of already developed materials are Eurofer97 (E97), F82H, Fe-14Cr-YWTi oxide dispersion strengthened (ODS) alloys. In the latter, the addition of Y2O3 nanoparticles into these alloys improve their tensile and creep properties and show higher temperature resistance. Within a nuclear fusion reactor, first wall and tritium breeding blanket structural materials will undergo microstructural changes such as the formation of precipitates, voids, bubbles, and dislocation loops, caused by high energy neutrons produced during the deuterium-tritium fusion reaction. These microstructural changes produce changes in the lattice structure, generating localised strains within the lattice. Here we propose to use synchrotron 3D Bragg ptychography, to visualise these lattice strains and distributions of strains within neutron irradiated Fe-Cr based steels.
DOI: 10.15151/esrf-es-1830140335
title: Unveiling the role of Zn in biomineralization processes by XANES and anomalous SAXS/WAXS

description: Biomineralized tissues like bone and the bone-tendon interface (enthesis) play a crucial role in the functioning of our body. Bones are subject to constant remodelling throughout our life to maintain their performance. The enthesis adapts their mineralized areas to changes in the mechanical loading. While the mineralization process to adapt to different load conditions differ substantially between bone and enthesis, common features exist. Both tissues exhibit zones at the interface of mineralization differing in composition from the surrounding mineralized tissue. In both cases, an accumulation of Zn is visible. This prompts questions on (1) the role of Zn, (2) its generality in biomineralization and (3) the form of Zn incorporation in the structure. We aim at investigating the local chemistry around the Zn site with XANES at ID21 and then study the structural localization of Zn with anomalous SAXS/WAXS at ID13 to see if the Zn is incorporated into the bone mineral/collagen portion.
DOI: 10.15151/esrf-es-1830138415
title: Reflectivity on liquid/liquid active interface using monoamide extractants

description: The description of the ion transfer over an active interface remains largely unexplored at the molecular level. According to a 2011 study by H. B. de Aguiarin on surfactant at LL interface, many well established theories on molecule conformation or orientation may need to be reexamined in light of new research. These studies on ion transfer at liquid/liquid interface are essential for progressing in fundamental understanding of factors governing the separation process. Our proposal involves pursuing an innovative methodology that was established several years ago at ILL and ESRF. This involves combining complementary experiments (using neutrons and X-rays) with modelling to concentrate on this particular mechanism. 
X-ray reflectivity (on ID10) will be used to probe the liquid /liquid interface in order to identify the uranyl cation distribution (U022+) at equilibrium that will driven by extractant molecules (monoamide in oily phase) from the aqueous phase up to the organic phase.
DOI: 10.15151/esrf-es-1830147008
title: Speciation and coordination of Ru catalysts in hydrogenation and upcycling of end-of-life polybutadiene

description: This proposal aims to unravel the structure-activity relationships of catalytic Ru species during the selective hydrogenation and upcycling of end-of-life poly(butadiene) (PBD), an environmentally crucial recycling process. Intuitive optimization allowed us to obtain a homogeneous system yielding promising hydrogenation selectivities with adequate catalyst stability. The overall selectivity is mainly influenced by the applied hydrogen pressure and local environment of the Ru catalyst. However, no clear proof has been found yet of the exact nature of the active catalyst and as to why certain catalytic precursors clearly outperform others. To date, very little is known on the exact speciation and coordination environment of these in situ formed Ru catalysts. The main scientific questions that should thus be answered are: (i) what is the nature of the Ru catalyst?; (ii) which Ru species are active?; and (iii) what is the overall reaction mechanism to explain the selective hydrogenation?
DOI: 10.15151/esrf-es-1830136633
title: Investigation of time-dependance speciation of gold-based drugs within cancer cells by cryo-X-Ray Absorption Spectroscopy

description: Organometallic gold complexes bearing biphenyl and diphosphine chelating ligands of the general formula [(C^C)Au(NHC)(PR3)]+ present variable antiproliferative activities depending of the PR3 ligand considered. We could evidence by cryo-XRF microscopy (ESRF, project LS-3277) the variable gold uptake and intracellular localization depending of the PR3 ligand after 4h incubation. However, we evidence by cryo-XAS spectroscopy the complete similar metabolization of each complex after the same incubation time (ESRF, project LS-3235). We now apply for beamline time at FAME UHD to perform cryo-XAS measurements on cancer cells treated with our gold complex for shorter incubation times (30 mn and 1 h) to study the kinetics of cellular metabolization in relationship with the phosphine ligand. This would represent the first structure-speciation relationship study of gold(III) complexes inside cancer cells. This project is financially supported by ITMO Cancer (project Goldspec no. 23CP039-00).
DOI: 10.15151/esrf-es-1830135634
title: Investigation of local structure modulation in CuO/WO3 heterojunction photocathode towards enhanced photoelectrochemical nitrate reduction t

description: The photo-electrochemical nitrate reduction reaction (PEC-NO3−RR) has two advantages: it contributes to the global nitrogen cycle back into balance and offers a less energy intensive method of producing ammonia. We have developed a CuO/WO3 heterojunction catalyst that gives a higher NH3 yield (1057 µg/h/mg) in the presence of visible light, which is 2.8-fold higher in comparison to the absence of light at the same applied potential (−1.4 V vs. Ag/AgCl). This means photoelectrons play a critical role in the nitrate reduction at CuO/WO3 heterojunction by influencing the CuO active sites. We propose to perform in-situ XANES to monitor Cu K and W L3-edge energies and EXAFS to understand shift in oxidation states and local coordination of the metal ions under applied potential in presence of 400 nm light. This study could help us to understand the role of photoelectron transfer at the heterojunction in enhancing the efficiency of nitrate reduction.
DOI: 10.15151/esrf-es-1830135906
title: Elemental distribution and speciation of Sr in bones to improve growth model in palaeontology

description: Almost all skeletal tissues record visible marks such as Lines of Arrested Growth (LAGs) that form annually during the unfavourable season. The identification of LAGs serves in palaeontology to calculate individual ages and to model the growth of organisms. However, sometimes bone growth slows down without ceasing, which implies LAGs are not systematically formed in bone tissue. Accordingly, this leads to the construction of inaccurate growth models. However, these seasonal modulations in bone growth are produced by internal physiological changes in the body, so that what is not recorded structurally could nevertheless be recorded chemically. Previous experiment (ESRF BM23 beamline ES1272) revealed for the first time in fossil dinosaur bones that these LAGs corresponded to marked enrichments in strontium (Sr). In order to validate these data and propose a biological model for Sr incorporation into bone tissue, it is crucial to perform the same analyses to bones of modern vertebrate.
DOI: 10.15151/esrf-es-1830138322
title: Ferromagnetism in epitaxially strained CaxSr1-xIrO3 thin films

description: Epitaxial SrIrO3 and CaIrO3 thin films on STO(001) substrates crystallize in the perovskite structure and both display paramagnetic and semimetallic behavior. We successfully synthesized epitaxially strained thin films of the substitution series CaxSr1-xIrO3. A non-monotonic evolution of the out-of-plane lattice parameter is found, which for low x increases with respect to that for pure SrIrO3. Interestingly, this strained state for x&gt;0.1 is accompanied by the occurrence of an anomalous Hall effect contribution below 50 K, which suggests the emergence of ferromagnetism. However, the ferromagnetic signal could not yet be confirmed by bulk magnetization measurements probably due to the small magnetic moment of the Iridium atoms. We propose XMCD measurements to investigate the Ir ferromagnetism and characterize the strain-induced phase in CaxSr1-xIrO3 for few selected concentrations x.
DOI: 10.15151/esrf-es-1830155323
title: XAS probing the redox mechanism and the role of transition metals in O3-type layered oxide cathodes for sodium-ion batteries

description: This project focuses on O3 type layered transition-metal oxide cathodes Na0.9Mn0.48Fe0.3(Cu/Zn)0.22O2 for Na-ion batteries. We aim to probe the transition metals on their cycling-induced evolutions in redox activity and local structure by synchrotron operando XAS. We expect to distinguish the role of these TMs in the overall charge-storage mechanism and identify their influence on cycling stability in terms of voltage polarization, TM migrations to sodium layers and anionic redox. Our findings will provide guidance in future materials design and optimization for higher-energy Na-ion batteries.
DOI: 10.15151/esrf-es-1830158808
title: Unusual phase transition into frustrated antipolar phase in ferromagnetic EuAl12O19

description: Hexagonal EuAl12O19 exhibits a phase transition at Ts = 49 K visible in specific heat and thermal expansion. Pyroelectric measurements reveal polarization and temperature-dependent dielectric permittivity shows an unusual change of slope at Ts characteristic for improper ferroelectrics. At low temperatures, a dielectric dispersion resembling relaxor ferroelectrics is observed. However, second harmonic generation measurements did not show a breaking of center symmetry and synchrotron XRD did not reveal any structural change below Ts. Based on theoretical calculations on a similar system BaFe12O19 (Wang and Xiang, PRX 4, 011035 (2014)), we suggest that EuAl12O19 transfers into a frustrated antiferroelectric phase below Ts. This should be visible in diffuse X-ray scattering. In addition, phonon softening should be observed at the Brillouin zone boundary. Therefore, we propose to measure diffuse scattering (6 shifts) and phonons (12 shifts) at the BZ boundary as function of temperature.
DOI: 10.15151/esrf-es-1830836354
title: High energy X-ray characterization of interfaces for quantum application

description: Small layered junctions, crucial for quantum applications, consist of thin films, often conductors or superconductors, separated by oxide layers. Despite their significance, characterizing these structures is challenging due to their small size and complex compositions. Traditional techniques like SEM and TEM offer limited insights and may damage samples. While X-ray Reflectivity (XRR) provides useful out-of-plane electron density profiles, it lacks in-plane spatial resolution. This proposal introduces High Energy XRR Tomography (HEXRR-Tomo) to overcome this limitation. Unlike conventional XRR, HEXRR-Tomo enables spatial mapping of the entire surface, facilitating high-resolution 3D electron density map reconstruction. This non-destructive technique promises insights into layer thickness, density, and roughness, advancing understanding of junction structure and properties.
DOI: 10.15151/esrf-es-1899801270
title: High res. RIXS on Ir compounds

description: High res. RIXS on Ir compounds
DOI: 10.6084/m9.figshare.27023686.v5
title: medikal düşük 0543 529 72 06 istenmeyen gebelik, düşük (hapı).

description: Düşük (hapı) düşük (hapı) düşük (ilacı) dusuk (hapi) dusuk (ilaci) kürtaj (hapı) kürtaj (ilacı) düşük (hapı) sipariş düşük (hapı) (cytotec) düşük (hapı) eczane (medikal) düşük 0543 529 72 06 istenmeyen gebelik, düşük (hapı). düşük (hapı) Düşük (Hapı) DÜŞÜK (HAPI) düşük (hapı) sipariş. düşük (hapı) eczane. düşük (hapı) (cytotec). düşük (ilacı) DÜŞÜK (İLACI) kürtaj (hapı) kürtaj (ilacı) düşük (hapı) fiyatı. düşük nasıl yapılır. düşük yapma yöntemleri. düşük (hapı) nereden alınır. düşük (hapı) nerede bulunur. (cytotec). (cytotec) (misoprostol). düşük (hapı) güncel fiyatı. düşük (hapı) fiyatı 2024.
DOI: 10.6084/m9.figshare.27023686.v4
title: medikal düşük 0543 529 72 06 istenmeyen gebelik, düşük (hapı).

description: Düşük (hapı) düşük (hapı) düşük (ilacı) dusuk (hapi) dusuk (ilaci) kürtaj (hapı) kürtaj (ilacı) düşük (hapı) sipariş düşük (hapı) (cytotec) düşük (hapı) eczane (medikal) düşük 0543 529 72 06 istenmeyen gebelik, düşük (hapı). düşük (hapı) Düşük (Hapı) DÜŞÜK (HAPI) düşük (hapı) sipariş. düşük (hapı) eczane. düşük (hapı) (cytotec). düşük (ilacı) DÜŞÜK (İLACI) kürtaj (hapı) kürtaj (ilacı) düşük (hapı) fiyatı. düşük nasıl yapılır. düşük yapma yöntemleri. düşük (hapı) nereden alınır. düşük (hapı) nerede bulunur. (cytotec). (cytotec) (misoprostol). düşük (hapı) güncel fiyatı. düşük (hapı) fiyatı 2024.
DOI: 10.6084/m9.figshare.25702605.v4
title: <b>Data of "</b>Zn Isotope Tracing Unveils Primary Anthropogenic Zn Sources in Glacial Cryoconite of the High Asian Mountains<b>"</b>

description: <b>Data of </b><b>“</b>Zn Isotope Tracing Unveils Primary Anthropogenic Zn Sources in Glacial Cryoconite of the High Asian Mountains<b>”</b>
DOI: 10.25381/cput.26815222
title: The effect of different potassium concentrations and electrical conductivity on hydroponi-grown <i>Trachyandra divaricata</i>, as green vegetable

description: Wild leafy vegetables are commonly included in the diet of people in rural homesteads. Among various wild edible vegetables in South Africa, <i>Trachyandra divaricata</i> (Sandkool) is one of the most abundant but underutilized due to the dearth of literature on its cultivation and nutritional value. In the present study, the effect of potassium application and pruning on growth dynamics, mineral composition, and proximate and phytochemical content in <i>T. divaricata</i> were evaluated. Treatments consisted of three potassium concentrations (0.0072, 0.0144, and 0.0216 M) supplemented in the form of potassium sulphate (K<sub>2</sub>SO<sub>4</sub>) with four pruning levels (unpruned, 5, 10, and 15 cm) applied in each treatment. The potassium doses were added to the nutrient solution, while the control treatment was sustained and irrigated with nutrient solution only. The results revealed a significant increase in flower bud yield, height, total dry and wet weight of shoots and roots, as well as ash and neutral detergent fibre in plants irrigated with 0.0072 M of K<sub>2</sub>SO<sub>4</sub> without pruning. Conversely, chlorophyll content and Ca were comparable among treatments, while the highest yield of Na, P, N, and Zn was recorded in treatment 100 mL of K<sub>2</sub>SO<sub>4</sub> with 10 cm pruning. Likewise, the highest antioxidant value (Polyphenols, Flavonol and DPPH) was obtained from plants irrigated with 0.0072 M of K<sub>2</sub>SO<sub>4</sub> with 10 cm pruning. Based on these findings, <i>T. divaricata</i> is a promising leafy vegetable as a minimum dose (0.0072 M) of K with moderate pruning optimised its productivity in terms of growth, biomass parameters, nutritional content, and antioxidant potential. Due to its rich nutritional value, the plant should be domesticated and studied further for its potential nutraceutical benefits
DOI: 10.25381/cput.26815222.v1
title: The effect of different potassium concentrations and electrical conductivity on hydroponi-grown <i>Trachyandra divaricata</i>, as green vegetable

description: Wild leafy vegetables are commonly included in the diet of people in rural homesteads. Among various wild edible vegetables in South Africa, <i>Trachyandra divaricata</i> (Sandkool) is one of the most abundant but underutilized due to the dearth of literature on its cultivation and nutritional value. In the present study, the effect of potassium application and pruning on growth dynamics, mineral composition, and proximate and phytochemical content in <i>T. divaricata</i> were evaluated. Treatments consisted of three potassium concentrations (0.0072, 0.0144, and 0.0216 M) supplemented in the form of potassium sulphate (K<sub>2</sub>SO<sub>4</sub>) with four pruning levels (unpruned, 5, 10, and 15 cm) applied in each treatment. The potassium doses were added to the nutrient solution, while the control treatment was sustained and irrigated with nutrient solution only. The results revealed a significant increase in flower bud yield, height, total dry and wet weight of shoots and roots, as well as ash and neutral detergent fibre in plants irrigated with 0.0072 M of K<sub>2</sub>SO<sub>4</sub> without pruning. Conversely, chlorophyll content and Ca were comparable among treatments, while the highest yield of Na, P, N, and Zn was recorded in treatment 100 mL of K<sub>2</sub>SO<sub>4</sub> with 10 cm pruning. Likewise, the highest antioxidant value (Polyphenols, Flavonol and DPPH) was obtained from plants irrigated with 0.0072 M of K<sub>2</sub>SO<sub>4</sub> with 10 cm pruning. Based on these findings, <i>T. divaricata</i> is a promising leafy vegetable as a minimum dose (0.0072 M) of K with moderate pruning optimised its productivity in terms of growth, biomass parameters, nutritional content, and antioxidant potential. Due to its rich nutritional value, the plant should be domesticated and studied further for its potential nutraceutical benefits
DOI: 10.5281/zenodo.13762623
title: Gajarska et al. 2024

description: LIBS lines used with the comb algorithm as described inZuzana Gajarska et al.: "Automated detection of element-specific features in LIBS spectra"submitted to JASS, Sept. 2024
DOI: 10.5281/zenodo.13762624
title: Gajarska et al. 2024

description: LIBS lines used with the comb algorithm as described inZuzana Gajarska et al.: "Automated detection of element-specific features in LIBS spectra"submitted to JASS, Sept. 2024
DOI: 10.15468/dl.wck6ma
title: Occurrence Download

description: A dataset containing 36175 species occurrences available in GBIF matching the query:
{
 "PublishingOrg" : [
 "is c254a6f2-87d8-440c-9da9-8f9161f47e3d"
 ]
}

 The dataset includes 36175 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0017302-240906103802322/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.5281/zenodo.12801804
title: Monitoring and evaluation of UKRI's Open Access Policy: Exploring the use of open data sources to inform baseline values - Dataset

description: This dataset accompanies the report "Monitoring and evaluation of UKRI's Open Access Policy: Exploring the use of open data sources to inform baseline values", which is available via Zenodo.It provides record-level data of UKRI-funded and UK-affiliated research output (limited to journal articles with Crossref DOIs) published between 2012 and 2022 - including bibliographic metadata as well as data on open access availability, publisher, national and international collaborations, citations, views and downloads, altmetrics and subjects (fields). All variables are documented in the data dictionary included in this Zenodo record.

The code used to generate the dataset from open data sources is available on GitHub. 

The following data sources were used:





Gateway to Research (records downloaded between 2023-11-05 and 2023-11-13)




Crossref (Metadata Plus snaphot 2023-10-31, Crossref member route API 2024-01-23)




OpenAlex (data snapshot 2023-10-18)




Unpaywall (data snapshot 2023-11-27)




IRUS UK (2024-04-03)




Crossref Event Data (2023-04-01)



The project made use of Curtin Open Knowledge Initiative (COKI) infrastructure, which is documented on GitHub: https://github.com/The-Academic-Observatory. 
description: This study has been funded by UK Research and Innovation (UKRI).