cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.1594/pangaea.941905
title: A refined age model and ice rafted debris for the U1361A marine sediment core

description: This data set displays a refined age scale for the U1361A marine sediment core (64.41°S, 143.89°E, 3,454 m water depth), recovered from the continental rise offshore of the Wilkes Subglacial Basin, during the Integrated Ocean Drilling Program (IODP) Expedition (Escutia et al. 2011). This age scale is a refined version of the age scale published in Wilson et al. 2018. Here we use the AICC2012 ice core chronology as a reference curve in order to compare the late Pleistocene sediment core data from U1361A to the TALDICE ice core record. Specifically, we refine the existing U1361A age model through the alignment of barium/aluminium (Ba/Al) ratios from XRF-scanning7 with the EDC δD record on the AICC2012 age scale. We apply a conservative tuning strategy to align the two records, using tie points (derived by visual matching) only at the mid-points of the major glacial terminations I-V. Over the interval of interest for the present study (i.e. ~100-350 ka), the new age model for core U1361 differs by only 0 to 6 ka compared to the previous age model in which the sedimentation rate was assumed to be constant. The Nd and IBRD (ice rafted debris) and 143 Nd/144 Nd records for the U1361A published in Wilson et al. (2018) are drawn on the refined age scale.
description: IBRD was measured by weighing after wet-sievingIBRD (ire rafted debris) and 143Nd/144Nd records of the U1361A sediment core (Wilson et al. 2018) drawn of the refined age scale tuned on the AICC2012 chronology for EDC (Bazin et al. 2013)
DOI: 10.1594/pangaea.937572
title: Suspended particulate matter (SPM), Total particulate carbon (TPC) and Total particulate nitrogen (TPN) concentrations in the surface water of the Mackenzie Delta Region during 4 expeditions from spring to fall in 2019

description: Material for the determination of suspended particulate matter (SPM), total particulate carbon (TPC) and total particulate nitrogen (TPN) was obtained by filtering 300-700 mL water samples on pre-weighed, precombusted (450°C for &gt;5 hours) 47mm Whatmann GF/F (0.7 µm) filters. The filters were dried overnight at 60°C and vacuum-sealed for storage in petri dishes kept at room temperature until analysis. SPM was calculated as the difference in dry weight between individually-marked filters before and after filtration (Doxaran et al., 2012; doi:10.5194/bg-9-3213-2012). Concentrations of TPC and TPN were determined using a Carbon Hydrogen Nitrogen (CHN) analyzer (Perkin Elmer) following methods described in Doxaran et al. (2012; doi:10.5194/bg-9-3213-2012).
description: Empty cells = NA
DOI: 10.1594/pangaea.937575
title: Particulate organic carbon (POC) and particulate organic nitrogen (PON) concentrations in the surface water of the Mackenzie Delta Region during 4 expeditions from spring to fall in 2019

description: Particulate organic carbon (POC) and particulate organic nitrogen (PON) concentrations were obtained from water samples filtered on precombusted (450°C for &gt;5 hours) 47mm Whatmann GF/F (0.7 µm) filters. The filters were dried overnight at 60°C and vacuum-sealed for storage in aluminum foil kept at -20°C until analysis. To determine POC and PON concentrations, the filters were acidified with 200-350 µl HCl 2N to remove carbonates, dried at 60°C overnight and then burned on a pre-calibrated CHN analyzer (Perkin Elmer, combustion at 925°C) for determination of the CO2 produced (Doxaran et al. 2012; doi:10.5194/bg-9-3213-2012).
description: Empty cells = NA
DOI: 10.1594/pangaea.937567
title: Hydrographic (CTD) profiles in the Mackenzie Delta Region during 4 expeditions from spring to fall in 2019

description: During Leg 1, the CTD (CTD RBR Maestro) was manually lowered in the water through an ice hole with a velocity of less than 0.3 ms-1 and an acquisition frequency of 6 Hz, yielding a vertical resolution of a few centimetres. During legs 2 to 4, the CTD (CTD RBR Concerto) was installed on a Seabird Scientific optical package frame, which was deployed with a velocity of 0.3 m s-1 and an acquisition frequency of 8 Hz. Only data from downcasts were used and poor quality profiles, that had been affected by ice-covered sensors, were removed. Atmospheric pressure observed at weather stations near the sampling locations (Aklavik, Inuvik, Shingle Point and Tuktoyaktuk) was used to tare the CTD pressure sensors. CTD profiles were smoothed and binned to a regular 0.01 m depth grid.
description: Empty cells = NA
DOI: 10.1594/pangaea.893537
title: Physical oceanography during towed CTD track POS518/1_8-1 (VCTD03)
DOI: 10.1594/pangaea.937579
title: Stable water isotopes (δ18O, δD, d-excess) in the surface water of the Mackenzie Delta Region during 4 expeditions from spring to fall in 2019

description: Water samples for stable isotopes were collected untreated in 10 mL HDPE vials, sealed tightly, stored in the dark at 4°C. Measurements were conducted at the laboratory facility for stable isotopes at AWI Potsdam using a Finnigan MAT Delta-S mass spectrometer equipped with equilibration units for the online determination of hydrogen and oxygen isotopic composition. The data is given as δD and δ18O values, which is the per mille difference to standard V-SMOW. The deuterium excess (d-excess) is calculated by: d-excess=δD-8.*δ18O. The measurement accuracy for hydrogen and oxygen isotopes was better than ±0.8%¸ and ±0.1%, respectively (Meyer et al., 2000; doi:10.1080/10256010008032939).
description: Empty cells = NA
DOI: 10.15468/dl.3kxpyr
title: Occurrence Download

description: A dataset containing 1341063 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Morus notabilis, Sesbania bispinosa, Aegilops umbellulata, Agropyron cristatum, Avena longiglumis, Beckmannia syzigachne, Cercis chuniana, Cucumis sativus, Hordeum brevisubulatum, Oxalis articulata, Oxalis debilis, Physaria fendleri, Physaria lindheimeri, Physaria pallida, Rosa laevigata, Rosa persica, Arabidopsis thaliana, Camelina neglecta, Fragaria nipponica, Fragaria orientalis, Antirrhinum majus, Carpinus viminea, Cenchrus americanus, Corydalis hemidicentra, Dasypyrum villosum, Epimedium pubescens, Medicago littoralis, Ormosia purpureiflora, Pontederia cordata, Prunus campanulata, Puccinellia tenuiflora, Punica granatum, Salvia officinalis, Secale cereale, Arabis alpina, Arabis planisiliqua, Corydalis saxicola, Artemisia tridentata, Centella asiatica, Coptis teeta, Eomecon chionantha, Lotus pedunculatus, Luzula pallescens, Platycodon grandiflorus, Rosa rugosa, Microcitrus australis, Argentina lineata, Salvia hispanica, Arachis ipaensis, Brachypodium distachyon)",
 "BasisOfRecord is one of (Specimen, Human Observation, Observation, Machine Observation)",
 "HasCoordinate is true",
 "HasGeospatialIssue is false"
 ]
}

 The dataset includes 1341063 records from 3631 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0029796-251025141854904/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.yng82b
title: Occurrence Download

description: A dataset containing 86 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Dibelodon tropicus"
 ]
}

 The dataset includes 86 records from 6 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0002986-260120142942310/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.aemun6
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
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 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0002987-260120142942310/datasets/export for details.
DOI: 10.57710/alba-es-20250340383
title: Temperature-Dependent Study of the Electronic Structure in Kagome Material Ni3In2S2

description: Ni₃In₂S₂, a kagome lattice material, exhibits exceptionally high carrier mobility and extreme magnetoresistance (XMR), yet no long-range magnetic order has been observed. Notably, its XMR effect and Hall resistivity behavior undergo a transition around 50 K, but the underlying electronic origins remain unclear. Angle-resolved photoemission spectroscopy (ARPES) studies suggest that compensated electronic bands and a Dirac nodal point near the Fermi level may play a crucial role in these transport properties. However, no temperature-dependent ARPES investigation has been conducted. This experiment aims to probe the temperature evolution of Ni₃In₂S₂’s electronic structure to elucidate the mechanisms driving its anomalous magnetotransport behavior.
DOI: 10.57710/alba-es-20250340207
title: Determining the dimensionality and origin of quantum criticality in quasi-2D heavy fermion Ce₂PdAl₇Ge₄ and Ce₂CoAl₇Ge₄

description: Quantum critical points (QCPs) are of immense importance within strongly correlated electron physics. While experimental realization is well-established, uniting experiment with theory to describe such emergence has proven to be a long-standing challenge. This is partially due to computational limitations precluding solutions for many-body techniques in 3D heavy fermion systems, necessitating experimental focus towards lower dimensional systems. The quasi-2D HF compounds Ce₂PdAl₇Ge₄ and Ce₂CoAl₇Ge₄. that crystallize with a layered structure and exhibit distinct ground states—non-Fermi liquid behavior in Pd and antiferromagnetic order in Co, are candidate systems in which to investigate heavy fermion physics in reduced dimensionality. Macroscopic physical property studies reveal these systems are proximal to QCPs and magnetic/non-magnetic boundaries with density functional theory calculations predicting quasi-2D Fermi surfaces. To elucidate the microscopic origins for the observed localized vs. itinerant behavior, we propose a high-resolution angle-resolved photoemission spectroscopy study at the LOREA beamline. We will map the dimensionality, Fermi surface topology, and decipher surface vs. bulk states. Complementary X-ray absorption and resonant photoemission spectroscopy will determine f-electron occupancy, informing dynamical mean-field theory models. This work will establish a benchmark dataset for low-dimensional HF physics, providing insights into quantum criticality and emergent many-body effects in the 2D Kondo lattices.
DOI: 10.57710/alba-es-20250340435
title: Tuning the Magnetic Properties of Honeycomb Na3Co2-xNixSbO6 Systems via Electrochemistry: Evaluation of The Charge Compensation Mechanism.

description: The study to be conducted within the frame of the current proposal represents a part of fundamental comprehensive investigation of honeycomb Na3Co2-xNixSbO6 materials. The end members of this raw are a matter of particular interest interest for solid state physicists. Another feature of these compounds is their electrochemical activity, which might be used for tuning their structural, electronic, and consequently, magnetic properties. To be more specific, electrochemical extraction of a certain amount of sodium from a formula unit should trigger these changes. Thus, such study requires a cooperation between scientists from various research fields and a combination of synchrotron-based methods. This particular proposal is focusing on understanding the charge compensation mechanism in the named antimonates upon desodiation: both cobalt and nickel can participate in the redox process. We plan to conduct operando XAS experiments on corresponding metal K-edges with subsequent analysis of XANES and XAFS parts of the spectra. Using the reference materials, oxidation states of Co and Ni will be defined from XANES, while XAFS strucutal calculations will reveal the changes in their local coordination strucutres. These results will be put in line with those from operando XRD (a topic for a parallel proposal). Additionally, gram-scale amounts of pristine and partially desodiated antimonates are currently being prepared for neutron diffraction studies at Australian Centre for Neutron Scattering (ANSTO). These subsequent studies will focus on characterisation of crystal and magnetic structure of the named compositions at low temperatures. From the electrochemical point of view, the Na3Co2-xNixSbO6 family is a good model for studying the effects of combining various redox-active elements at the same crystallographic position on the resulting specific characteristics and kinetics of layered SIB cathodes. In the end, the outcomes should be valuable for physicists (theoreticians and experimentalists) and chemists.
DOI: 10.15468/dl.6zd7m8
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{"type":"and","predicates":[{"type":"within","geometry":"POLYGON ((-71.916 4.551159, -71.98648300000001 4.545589, -72.055228 4.529016, -72.120538 4.50185, -72.18080500000001 4.464759, -72.23454099999999 4.41866, -72.28042499999999 4.364688, -72.31732599999999 4.304174, -72.34433799999999 4.238609, -72.36079700000001 4.169609, -72.366302 4.098873, -72.360719 4.028143, -72.344189 3.959161, -72.317121 3.893623, -72.28018400000001 3.833144, -72.23428800000001 3.77921, -72.180564 3.733149, -72.120334 3.696094, -72.05507900000001 3.668955, -71.986405 3.6524, -71.916 3.646836, -71.845595 3.6524, -71.776921 3.668955, -71.71166599999999 3.696094, -71.651436 3.733149, -71.597712 3.77921, -71.551816 3.833144, -71.51487899999999 3.893623, -71.48781099999999 3.959161, -71.471281 4.028143, -71.465698 4.098873, -71.471203 4.169609, -71.487662 4.238609, -71.514674 4.304174, -71.551575 4.364688, -71.597459 4.41866, -71.651195 4.464759, -71.711462 4.50185, -71.77677199999999 4.529016, -71.845517 4.545589, -71.916 4.551159))"},{"type":"equals","key":"CLASS_KEY","value":"212","matchCase":false},{"type":"greaterThanOrEquals","key":"YEAR","value":"2015","matchCase":false},{"type":"not","predicate":{"type":"in","key":"BASIS_OF_RECORD","values":["MATERIAL_CITATION","MATERIAL_SAMPLE","PRESERVED_SPECIMEN"],"matchCase":false}},{"type":"lessThanOrEquals","key":"COORDINATE_UNCERTAINTY_IN_METERS","value":"10000","matchCase":false},{"type":"equals","key":"LICENSE","value":"CC BY 4.0","matchCase":false}]}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0002991-260120142942310/datasets/export for details.
DOI: 10.57710/alba-es-20250330085
title: Nanomaterials for Functional ApplicatioNs in Clean energY generation (FANCY)

description: The overall water splitting process, eventually boosted by sunlight, can generate hydrogen and oxygen from water and is considered as one of the most promising approaches to face the global energy crisis with no harmful effect on human health or environment. Unfortunately, the availability of cheap, efficient and active material platforms to promote this process is still relatively limited, underscoring the urgent need of additional research efforts in this field. Therefore, the main aim of this proposal is to acquire knowledge in the design, production and validation of novel nanoscale catalysts suitable for sustainable hydrogen production by (photo)electrochemical water splitting processes. To this regard, we focus our attention on the preparation of three different kinds of systems: a) nanocomposites of NiO and graphitic carbon nitride (gCN), whose coupling can efficiently separate photoinduced charge carriers, resulting thus in improved functional performances; b) the preparation of composite material derived from the combination of single phase Mn and Fe oxides or the use of a Mn-Fe ternary oxide; c) the preparation of CuFe2O4/gCN, NiFe2O4/gCN, and Fe2O3/gCN systems.
DOI: 10.57710/alba-es-20250340347
title: Analyzing orbital and spin magnetic moments in magnetic Rashba interfaces based on Graphene-Ferromagnet

description: We aim at investigating the role of orbital and spin magnetic moments in epitaxial graphene (Gr)/Ferromagnet (FM)/heavy-metal (HM) structures (with FM=Fe, Co and HM=Pt, Ir) grown on Al2O3(0001) with different non-magnetic (NM) capping layer (NM= Pt, Al, Ta, TaOx, AlOx ..). NM/Gr/HM is a double Rashba interface able to efficiently convert spin current to charge current via a Rashba-Edelstein Effect (REE) and displays a sizeable interfacial Dzyaloshinskii-Moriya interaction (DMI). In this proposal, we propose to carry out room temperature in-plane and out-of-plane magnetic field dependence measurements at the Fe,Co-L2,3 edge by means of X-ray absorption (XAS) and magnetic circular dichroism (XMCD) measurements under different applied magnetic fields, in order to detect the variation of the (orbital and spin) magnetic moments in remanence and saturation magnetizations states. The results will be correlated with the work function (WF), interfacial Dzyaloshinskii-Moriya interaction (DMI) and spin-charge interconversion efficiencies, as obtained by our laboratory based experiments.
DOI: 10.15468/dl.y4erzt
title: Occurrence Download

description: A dataset containing 3368 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Cucumis anguria"
 ]
}

 The dataset includes 3368 records from 281 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0002992-260120142942310/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.6z68qp
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{"type":"and","predicates":[{"type":"within","geometry":"POLYGON ((100.615 1.903181, 100.544699 1.897613, 100.47613 1.881045, 100.410982 1.853886, 100.350862 1.816805, 100.297249 1.770716, 100.251463 1.716754, 100.214632 1.656249, 100.187663 1.59069, 100.171217 1.521692, 100.165699 1.450955, 100.171244 1.38022, 100.187715 1.311229, 100.214704 1.24568, 100.251548 1.185186, 100.297338 1.131238, 100.350947 1.085162, 100.411054 1.048094, 100.476182 1.020945, 100.544726 1.004384, 100.615 0.998817, 100.685274 1.004384, 100.753818 1.020945, 100.818946 1.048094, 100.879053 1.085162, 100.932662 1.131238, 100.978452 1.185186, 101.015296 1.24568, 101.042285 1.311229, 101.058756 1.38022, 101.064301 1.450955, 101.058783 1.521692, 101.042337 1.59069, 101.015368 1.656249, 100.978537 1.716754, 100.932751 1.770716, 100.879138 1.816805, 100.819018 1.853886, 100.75387 1.881045, 100.685301 1.897613, 100.615 1.903181))"},{"type":"equals","key":"CLASS_KEY","value":"212","matchCase":false},{"type":"greaterThanOrEquals","key":"YEAR","value":"2015","matchCase":false},{"type":"not","predicate":{"type":"in","key":"BASIS_OF_RECORD","values":["MATERIAL_CITATION","MATERIAL_SAMPLE","PRESERVED_SPECIMEN"],"matchCase":false}},{"type":"lessThanOrEquals","key":"COORDINATE_UNCERTAINTY_IN_METERS","value":"10000","matchCase":false},{"type":"equals","key":"LICENSE","value":"CC BY 4.0","matchCase":false}]}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0002995-260120142942310/datasets/export for details.
DOI: 10.57710/alba-es-20250330033
title: Evaluating partner materials for the earth-abundant photovoltaic absorber ZnSnP2 for sustainable energy production

description: In this project we want to explore how the photovoltaic absorber material ZnSnP2 interacts with different potential partner materials for sustainable energy production. ZnSnP2 is composed of earth-abundant and recyclable elements with suitable optoelectronic properties for photovoltaic applications, however, it is missing suitable partner material to be grown as thin films. The understanding of how ZnSnP2 would interact with potential partner materials is necessary to determine the best processing route and potential recycling pathways.
The ZnSnP2 thin films will be grown using selective area epitaxy in nanoscale holes on different substrates. The nanoscale dimensions of the hole and the mask layer helps limit defect formation and propagation between layers, resulting in an improved materials quality. This opens up the use of a larger range of partner materials as compared to conventional thin-film deposition techniques. The exact interface structure can be determined using cross-sectional analysis through transmission electron microscopy of lamellae produced using focused ion beam processing. Moreover, the functional properties, such as bandgap, of ZnSnP2 are related to the order-disorder of the Zn and Sn atoms, where it has been demonstrated to be tuneable from 1.37 to 1.60 eV. To analyse local atomic positions and the bonding environment we want to employ x-ray absorption near edge spectroscopy at the ALBA Synchrotron.
DOI: 10.57710/alba-es-20250330095
title: Operando XAS Studies of Layered ε-Cu0.85V2O5 and its V2O5·1.2H2O Derivatives as High-performance Cathodes for Lithium-Ion Batteries

description: Operando studies of battery materials V2O5 and CuV2O5