cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.15468/dl.96favw
title: Occurrence Download

description: A dataset containing 20724 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Syncerus caffer"
 ]
}

 The dataset includes 20724 records from 131 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0038829-251120083545085/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.17026/ar/daxp64
title: PAN-00124924 - button with solid (semi-)round head and separate copper alloy wire shank

description: &lt;p&gt;This find is registered at Portable Antiquities of the Netherlands with number PAN-00124924&lt;/p&gt;
description: Modified: 2025-10-07T10:38:36+02:00
DOI: 10.15468/dl.6czfht
title: Occurrence Download

description: A dataset containing 25 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is Gabon",
 "DatasetKey is iNaturalist Research-grade Observations",
 "TaxonKey is Mandrillus sphinx",
 "Year 2023-2025"
 ]
}

 The dataset includes 25 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0038831-251120083545085/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.z6zsy3
title: Occurrence Download

description: A dataset containing 1747 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Tracheophyta",
 "DecimalLatitude is greater than or equal to 69.085278",
 "DecimalLatitude is less than or equal to 74.085278",
 "DecimalLongitude is greater than or equal to 120.0",
 "DecimalLongitude is less than or equal to 125.0",
 "HasCoordinate is TRUE",
 "HasGeospatialIssue is FALSE"
 ]
}

 The dataset includes 1747 records from 12 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0038832-251120083545085/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.aapywu
title: Occurrence Download

description: A dataset containing 134663879 species occurrences available in GBIF matching the query:
{
 "DatasetKey" : [
 "is iNaturalist Research-grade Observations"
 ]
}

 The dataset includes 134663879 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0038803-251120083545085/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.g57e2v
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Phyllotis alisosiensis",
 "HasCoordinate is TRUE"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0038835-251120083545085/datasets/export for details.
DOI: 10.15468/dl.y5h2vz
title: Occurrence Download

description: A dataset containing 46 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Vermiliopsis labiata",
 "HasCoordinate is true",
 "HasGeospatialIssue is false"
 ]
}

 The dataset includes 46 records from 15 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0038833-251120083545085/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.17026/ar/mqiqhr
title: PAN-00170472 - jug (Roman smooth ware pottery)

description: &lt;p&gt;This find is registered at Portable Antiquities of the Netherlands with number PAN-00170472&lt;/p&gt;
description: Modified: 2025-10-23T15:21:30+02:00
DOI: 10.5286/isis.e.rb2510210-1
title: Understanding the climate effects of the sea-surface microlayer: Structural and chemical evolution of organic monolayers upon reaction with molecular beams of OH radicals

description: Our research aims to unlock new insights into atmospheric chemistry and its effects on climate by investigating how airborne particles undergo oxidative ageing. We will employ advanced neutron and infrared reflectometry techniques to generate crucial experimental evidence demonstrating that self-assembled monolayers (SAMs) of thioalkyls or oleic acid on gold can serve as effective tools in cutting-edge high-vacuum molecular scattering experiments, enabling the control of surface functional groups and acting as proxies for the organic films present on sea spray aerosols. These films are composed of natural surfactants from the ocean’s surface and play a significant role in cloud formation and atmospheric processes. By scattering molecular beams containing reactive OH radicals off these SAMs, we will replicate oxidative processes that naturally occur in the atmosphere, providing a detailed investigation of oxidation mechanisms. Success in this ISIS experiment would pave the way for new opportunities to explore structural changes and oxidation pathways, offering a novel approach to simulating atmospheric ageing. This research forms part of a broader effort to understand how surfactants affect cloud condensation nuclei (CCN) activity, which in turn influences cloud albedo and Earth's energy balance. The insights gained will enhance climate models, shedding light on the role of atmospheric particles in shaping cloud properties and impacting global climate.
DOI: 10.5286/isis.e.rb2510210
title: Understanding the climate effects of the sea-surface microlayer: Structural and chemical evolution of organic monolayers upon reaction with molecular beams of OH radicals

description: Our research aims to unlock new insights into atmospheric chemistry and its effects on climate by investigating how airborne particles undergo oxidative ageing. We will employ advanced neutron and infrared reflectometry techniques to generate crucial experimental evidence demonstrating that self-assembled monolayers (SAMs) of thioalkyls or oleic acid on gold can serve as effective tools in cutting-edge high-vacuum molecular scattering experiments, enabling the control of surface functional groups and acting as proxies for the organic films present on sea spray aerosols. These films are composed of natural surfactants from the ocean’s surface and play a significant role in cloud formation and atmospheric processes. By scattering molecular beams containing reactive OH radicals off these SAMs, we will replicate oxidative processes that naturally occur in the atmosphere, providing a detailed investigation of oxidation mechanisms. Success in this ISIS experiment would pave the way for new opportunities to explore structural changes and oxidation pathways, offering a novel approach to simulating atmospheric ageing. This research forms part of a broader effort to understand how surfactants affect cloud condensation nuclei (CCN) activity, which in turn influences cloud albedo and Earth's energy balance. The insights gained will enhance climate models, shedding light on the role of atmospheric particles in shaping cloud properties and impacting global climate.
DOI: 10.5286/isis.e.rb2510301-1
title: Probing the superconducting gap symmetry of 3D Dirac semimetal PdTe

description: The search for new materials with superconducting ground states featuring topological characteristics is crucial for realizing Majorana bound states. PdTe is a noteworthy candidate, exhibiting superconductivity below 4.5 K and possessing a topologically non-trivial band structure. ARPES studies classify PdTe as a 3D Dirac semimetal, with a Dirac point situated close to the Fermi level, making it particularly intriguing for investigating the nature of superconductivity. Further ARPES findings suggest the coexistence of surface-nodeless and bulk-nodal gap structures, attributed to spin-orbit coupling. Complementary specific heat studies down to 50 mK indicate the presence of nodal bulk gaps. However, the absence of a linear term in thermal conductivity and the upward curvature observed in the H-T phase diagram suggest a multiband nature of superconductivity with nodeless gaps. To elucidate which of these scenarios is realized in PdTe, a detailed microscopic investigation is necessary. Therefore, we propose conducting an in-depth μSR study in both transverse field and zero field configurations to determine the precise nature of the superconducting gap symmetry and to assess the presence or absence of any minute magnetic fields resulting from spin-orbit coupling.
DOI: 10.5286/isis.e.rb2510301
title: Probing the superconducting gap symmetry of 3D Dirac semimetal PdTe

description: The search for new materials with superconducting ground states featuring topological characteristics is crucial for realizing Majorana bound states. PdTe is a noteworthy candidate, exhibiting superconductivity below 4.5 K and possessing a topologically non-trivial band structure. ARPES studies classify PdTe as a 3D Dirac semimetal, with a Dirac point situated close to the Fermi level, making it particularly intriguing for investigating the nature of superconductivity. Further ARPES findings suggest the coexistence of surface-nodeless and bulk-nodal gap structures, attributed to spin-orbit coupling. Complementary specific heat studies down to 50 mK indicate the presence of nodal bulk gaps. However, the absence of a linear term in thermal conductivity and the upward curvature observed in the H-T phase diagram suggest a multiband nature of superconductivity with nodeless gaps. To elucidate which of these scenarios is realized in PdTe, a detailed microscopic investigation is necessary. Therefore, we propose conducting an in-depth μSR study in both transverse field and zero field configurations to determine the precise nature of the superconducting gap symmetry and to assess the presence or absence of any minute magnetic fields resulting from spin-orbit coupling.
DOI: 10.5286/isis.e.rb2520144-1
title: Local structure of the defective oxide selenides Ba2Cu1-xO2-yCu2Se2

description: This is a proposal to examine the highly defective CuO2 planes in the layered oxide selenides Ba2Cu1-xO2-yCu2Se2 using neutron total scattering measurements to provide insight into how the CuO2 planes have fragmented, to determine the the local structure of the Cu ions (e.g. linear O-Cu-O units vs CuO4 square planes, and to enable assignment of the oxidation states. Neutron PDF measurements are essential for this problem as they will enable O to make a significant contribution to the scattering.
DOI: 10.5286/isis.e.rb2520144
title: Local structure of the defective oxide selenides Ba2Cu1-xO2-yCu2Se2

description: This is a proposal to examine the highly defective CuO2 planes in the layered oxide selenides Ba2Cu1-xO2-yCu2Se2 using neutron total scattering measurements to provide insight into how the CuO2 planes have fragmented, to determine the the local structure of the Cu ions (e.g. linear O-Cu-O units vs CuO4 square planes, and to enable assignment of the oxidation states. Neutron PDF measurements are essential for this problem as they will enable O to make a significant contribution to the scattering.
DOI: 10.5286/isis.e.rb2520078-1
title: Are thin films on night and day aqueous aerosol different?

description: The size, shape and refractive index of atmospheric aerosol controls the amount of sunlight scattered back to space and is a poorly characterized modern climate cooling mechanism. The size, shape and refractive index of atmospheric aerosol changes with atmospheric oxidation, by OH radical - photochemistry during the day, nitrate radical at night and ozone both day and night. Naturally occurring surfactant forms the shell or film on core-shell aerosol. The thickness and resistance to atmospheric oxidation of this film is critical to atmospheric science. We have collected nearly 24 months of night-time and day-time aerosol from an urban atmosphere and wish to measure the film thickness and reaction with OH radical at the air-water interface. A film thickness of &gt;10Å and oxidation lifetime between 1 hour and 10 days require inclusion in atmospheric models and a difference in film thickness of 2 Å and a difference in oxidation lifetime of ~30% between day and night would be meaningful difference.
DOI: 10.15468/dl.4r2gbp
title: Occurrence Download

description: A dataset containing 134663879 species occurrences available in GBIF matching the query:
{
 "DatasetKey" : [
 "is iNaturalist Research-grade Observations"
 ]
}

 The dataset includes 134663879 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0038805-251120083545085/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.5286/isis.e.rb2520078
title: Are thin films on night and day aqueous aerosol different?

description: The size, shape and refractive index of atmospheric aerosol controls the amount of sunlight scattered back to space and is a poorly characterized modern climate cooling mechanism. The size, shape and refractive index of atmospheric aerosol changes with atmospheric oxidation, by OH radical - photochemistry during the day, nitrate radical at night and ozone both day and night. Naturally occurring surfactant forms the shell or film on core-shell aerosol. The thickness and resistance to atmospheric oxidation of this film is critical to atmospheric science. We have collected nearly 24 months of night-time and day-time aerosol from an urban atmosphere and wish to measure the film thickness and reaction with OH radical at the air-water interface. A film thickness of &gt;10Å and oxidation lifetime between 1 hour and 10 days require inclusion in atmospheric models and a difference in film thickness of 2 Å and a difference in oxidation lifetime of ~30% between day and night would be meaningful difference.
DOI: 10.5286/isis.e.rb2510272-1
title: Effects of local structure in hydrogen occupation distribution and diffusion.

description: Multicomponent alloys have been studied to be employed in solid-state hydrogen storage since the H properties are highly related to the chemical composition of the alloy, allowing to tailor alloys for different applications. To help in alloy design, thermodynamic models are important since there is a huge compositional field to explore. As multicomponent alloys have different chemical local environments, understanding the H occupation on the interstitial sites of solid solutions is fundamental to improving the description of the thermodynamic of the M-H systems. Recently, it has shown that GEM could be employed to study the interstitial occupation in FCC dihydrides through pair-distribution function and Reverse Monte Carlo. Then, we believe that the same approach can be employed to study single-phase solid solutions to improve the modeling of multicomponent alloys for H storage.
DOI: 10.5286/isis.e.rb2510272
title: Effects of local structure in hydrogen occupation distribution and diffusion.

description: Multicomponent alloys have been studied to be employed in solid-state hydrogen storage since the H properties are highly related to the chemical composition of the alloy, allowing to tailor alloys for different applications. To help in alloy design, thermodynamic models are important since there is a huge compositional field to explore. As multicomponent alloys have different chemical local environments, understanding the H occupation on the interstitial sites of solid solutions is fundamental to improving the description of the thermodynamic of the M-H systems. Recently, it has shown that GEM could be employed to study the interstitial occupation in FCC dihydrides through pair-distribution function and Reverse Monte Carlo. Then, we believe that the same approach can be employed to study single-phase solid solutions to improve the modeling of multicomponent alloys for H storage.
DOI: 10.5286/isis.e.rb2500059-1
title: Neutron imaging from probing KOH distributions in porous carbon-based for direct air capture materials

description: The use of porous carbon materials for direct air capture (DAC) of CO2 is a rapidly growing field. Functionalisation with hydroxide allows for strong, chemisorption binding of CO2 allowing separation for dilute gas streams (e.g. air @ 440ppm CO2). We have developed inexpensive and facile potassium hydroxide impregnation methods into a range of porous carbon cloth materials. These have shown promising CO2 uptakes from air (0.2-0.6 mmol g-1) and strong robust to cycling, avoiding oxidative degradation common in amine-based systems. Understanding changes of impregnated KOH crystallite structure and distributions within the porous carbons plays a vital role in both optimising material synthesis and loading, as well as material performance over time and in response to external conditions (e.g. humidity). Having obtained initially promising neutron imaging results, we propose to investigate KOH distribution in a series of impregnated carbons (non-porous, medium porosity and high porosity) as a function of both humidity exposure and before/after material cycling.
DOI: 10.5286/isis.e.rb2500059
title: Neutron imaging from probing KOH distributions in porous carbon-based for direct air capture materials

description: The use of porous carbon materials for direct air capture (DAC) of CO2 is a rapidly growing field. Functionalisation with hydroxide allows for strong, chemisorption binding of CO2 allowing separation for dilute gas streams (e.g. air @ 440ppm CO2). We have developed inexpensive and facile potassium hydroxide impregnation methods into a range of porous carbon cloth materials. These have shown promising CO2 uptakes from air (0.2-0.6 mmol g-1) and strong robust to cycling, avoiding oxidative degradation common in amine-based systems. Understanding changes of impregnated KOH crystallite structure and distributions within the porous carbons plays a vital role in both optimising material synthesis and loading, as well as material performance over time and in response to external conditions (e.g. humidity). Having obtained initially promising neutron imaging results, we propose to investigate KOH distribution in a series of impregnated carbons (non-porous, medium porosity and high porosity) as a function of both humidity exposure and before/after material cycling.
DOI: 10.15468/dl.jwq8rg
title: Occurrence Download

description: A dataset containing 30743 species occurrences available in GBIF matching the query:
{
 "and" : [
 "SpeciesKey is Vespa velutina",
 "Year is one of (2024, 2025)",
 "HasCoordinate is true",
 "Geometry POLYGON((3.5 43.5, 12.5 43.5, 12.5 50.5, 3.5 50.5, 3.5 43.5))"
 ]
}

 The dataset includes 30743 records from 10 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0038837-251120083545085/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.5286/isis.e.rb2520184-1
title: QENS study of Enhanced Proton Diffusion in Gas-loaded Porous Materials

description: Porous materials showing high proton conductivity have attracted increasing interest in the development of proton-exchange membrane fuel cells (PEMFC) to promote the delivery of global ‘Net Zero’ target. We recently developed a robust porous material (STA-12Ni), which shows high proton conductivities of 3.36×10-2 and 5.46 × 10-3 S cm-1, upon loading of NO2 and SO2, respectively, at 90 °C and 99% relative humidity (RH). This is an unprecedented protocol to improve proton conductivity and also capture air-pollutants simultaneously. The conductivity exceeds that of pristine STA-12(Ni) by 1000 times, approaching that of commercial Nafion polymers. We request 6 days on IRIS to study the motions of active protons within these MOFs, aiming to uncover the nature of the proton conductivity by analysing variable temperature QENS data.
DOI: 10.5286/isis.e.rb2520184
title: QENS study of Enhanced Proton Diffusion in Gas-loaded Porous Materials

description: Porous materials showing high proton conductivity have attracted increasing interest in the development of proton-exchange membrane fuel cells (PEMFC) to promote the delivery of global ‘Net Zero’ target. We recently developed a robust porous material (STA-12Ni), which shows high proton conductivities of 3.36×10-2 and 5.46 × 10-3 S cm-1, upon loading of NO2 and SO2, respectively, at 90 °C and 99% relative humidity (RH). This is an unprecedented protocol to improve proton conductivity and also capture air-pollutants simultaneously. The conductivity exceeds that of pristine STA-12(Ni) by 1000 times, approaching that of commercial Nafion polymers. We request 6 days on IRIS to study the motions of active protons within these MOFs, aiming to uncover the nature of the proton conductivity by analysing variable temperature QENS data.
DOI: 10.5286/isis.e.rb2500069-1
title: Local structural correlations in the crystalline and glassy phases of Mn3Al2Si3O12

description: The compound Mn3Al2Si3O12 has two structural forms: the crystalline garnet spessartine which is a naturally occurring mineral, and a structural glass form. Both forms are magnetic due to the Mn2+ ions which have spin-5/2. In spessartine the Mn ions are 4+4-fold coordinated by Oxygen and are arranged as a highly frustrated network of corner-sharing triangles eventually developing long-range antiferromagnetic order at low temperatures. In the glass the coordination and arrangement of the Mn ions is unknown, however stronger antiferromagnetic interactions are present as revealed by a large negative Curie-Weiss temperature (4.5 times stronger than in spessartine). The goal of this experiment is to perform a total scattering measurement using GEM at room temperature of both forms of Mn3Al2Si3O12 in order to learn (1) to what extent the local structural correlations are different in the glassy and crystalline phases (2) the structural origin behind the development of the glass phase, (3) the immediate environment (coordination bond lengths and angles) of the cations in the glass compared to the crystalline phase and (4) their role in the contrasting magnetic properties of these two phases.
DOI: 10.5286/isis.e.rb2500069
title: Local structural correlations in the crystalline and glassy phases of Mn3Al2Si3O12

description: The compound Mn3Al2Si3O12 has two structural forms: the crystalline garnet spessartine which is a naturally occurring mineral, and a structural glass form. Both forms are magnetic due to the Mn2+ ions which have spin-5/2. In spessartine the Mn ions are 4+4-fold coordinated by Oxygen and are arranged as a highly frustrated network of corner-sharing triangles eventually developing long-range antiferromagnetic order at low temperatures. In the glass the coordination and arrangement of the Mn ions is unknown, however stronger antiferromagnetic interactions are present as revealed by a large negative Curie-Weiss temperature (4.5 times stronger than in spessartine). The goal of this experiment is to perform a total scattering measurement using GEM at room temperature of both forms of Mn3Al2Si3O12 in order to learn (1) to what extent the local structural correlations are different in the glassy and crystalline phases (2) the structural origin behind the development of the glass phase, (3) the immediate environment (coordination bond lengths and angles) of the cations in the glass compared to the crystalline phase and (4) their role in the contrasting magnetic properties of these two phases.
DOI: 10.5286/isis.e.rb2590249-1
title: Disclosures from a 30,000-year-old burial: 3D imaging of grave goods through complementary and enhanced contrasts
DOI: 10.15468/dl.pecvam
title: Occurrence Download

description: A dataset containing 3 species occurrences available in GBIF matching the query:
{
 "and" : [
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "TaxonKey is Cercopithecus solatus"
 ]
}

 The dataset includes 3 records from 3 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0038840-251120083545085/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.