cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.15468/dl.t9juz6
title: Occurrence Download

description: A dataset containing 13 species occurrences available in GBIF matching the query:
{
 "and" : [
 "BasisOfRecord is one of (Machine Observation, Human Observation)",
 "GadmGid is one of (CHN.31_1, CHN.1_1, CHN.24_1, CHN.15_1)",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present",
 "TaxonKey is one of (Fritillaria thunbergii Miq., Fritillaria thunbergii var. thunbergii)"
 ]
}

 The dataset includes 13 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0019511-230828120925497/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.fb6cxq
title: Occurrence Download

description: A dataset containing 8 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is Indonesia",
 "DatasetKey is iNaturalist Research-grade Observations",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 {
 "or" : [
 "TaxonKey is Elephas maximus Linnaeus, 1758",
 "TaxonKey is Elephas maximus sumatranus Temminck, 1847",
 "TaxonKey is Elephas maximus indicus Cuvier, 1798",
 "TaxonKey is Elephas maximus maximus"
 ]
 },
 "Year 2010-2022"
 ]
}

 The dataset includes 8 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0128993-210914110416597/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25549/pcra-c14-1861
title: Seiatel' istiny = The sower of truth, vol. 16, no. 5 (May 1931)

description: [description english/roman)] Monthly
DOI: 10.15468/dl.664axg
title: Occurrence Download

description: A dataset containing 8 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is Indonesia",
 "DatasetKey is iNaturalist Research-grade Observations",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 {
 "or" : [
 "TaxonKey is Elephas maximus Linnaeus, 1758",
 "TaxonKey is Elephas maximus sumatranus Temminck, 1847",
 "TaxonKey is Elephas maximus indicus Cuvier, 1798",
 "TaxonKey is Elephas maximus maximus"
 ]
 },
 "Year 2010-2022"
 ]
}

 The dataset includes 8 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0128994-210914110416597/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.d4gr4w
title: Occurrence Download

description: A dataset containing 47 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Ranunculus tembensis Fresen."
 ]
}

 The dataset includes 47 records from 13 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0019509-230828120925497/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.96zzfb
title: Occurrence Download

description: A dataset containing 11148 species occurrences available in GBIF matching the query:
{
 "and" : [
 {
 "or" : [
 "Country is Brazil",
 "Country is Paraguay",
 "Country is Argentina"
 ]
 },
 "OccurrenceStatus is Present",
 "TaxonKey is Tachornis squamata (Cassin, 1853)"
 ]
}

 The dataset includes 11148 records from 20 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0340914-210914110416597/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.bv9zaa
title: Occurrence Download

description: A dataset containing 42 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Prunus lusitanica subsp. azorica (Mouill.) Franco"
 ]
}

 The dataset includes 42 records from 14 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0017683-230828120925497/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25549/pcra-c14-1768
title: Seiatel' istiny = The sower of truth, vol. 16, no. 1 (January 1931)

description: [description english/roman)] Monthly
DOI: 10.15468/dl.t9rzwm
title: Occurrence Download

description: A dataset containing 36 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Paracyphononyx alienus (Smith, 1879)",
 "HasCoordinate is true",
 "Country is Japan",
 "HasGeospatialIssue is false"
 ]
}

 The dataset includes 36 records from 6 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0322401-210914110416597/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25549/pcra-c14-1865
title: Seiatel' istiny = The sower of truth, vol. 16, no. 5 (May 1931)

description: [description english/roman)] Monthly
DOI: 10.15468/dl.cn3nxz
title: Occurrence Download

description: A dataset containing 1309540 species occurrences available in GBIF matching the query:
{
 "and" : [
 "BasisOfRecord is one of (Material sample, Specimen)",
 "GadmGid is one of (BRA, ARG, CHL, BOL, PER, COL, ECU, VEN, GUY, GUF, SUR, PAN, CRI, HND, GTM, BLZ, MEX, SLV, NIC)",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "TaxonKey is Fungi"
 ]
}

 The dataset includes 1309540 records from 367 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0011311-230918134249559/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.73wb9x
title: Occurrence Download

description: A dataset containing 499 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Hebeloma pseudoamarescens (Kühner & Romagn.) P.Collin, Naucoria striatula P.D.Orton)",
 "Geometry POLYGON((-9.36035 44.71551,-10.59082 42.81152,-11.82129 36.80928,-7.69043 36.17336,-3.38379 35.88905,3.12012 38.13456,9.18457 38.20366,11.7334 37.16032,12.78809 34.74161,17.09473 33.79741, 23.15918 34.23451,30.10254 32.62087,33.2666 32.99024,35.72754 35.03,33.00293 35.53223,28.69629 35.17381,28.34473 36.31513,25.7959 37.50973,24.91699 39.90974,28.78418 40.6473,30.71777 41.17865,36.87012 45.213,38.18848 46.98025,38.71582 47.7541,39.94629 47.93107,40.20996 49.61071,37.0459 50.34546,35.72754 50.40152,33.79395 52.26816,31.68457 51.94426,31.4209 53.27835,32.56348 53.43572,30.98145 54.77535,30.89355 55.52863,28.43262 56.02295,27.20215 57.65716,27.37793 58.30949,27.90527 59.17593,29.66309 59.88894,27.6416 60.58697,31.50879 62.75473,28.78418 69.83962,30.89355 70.28912,29.22363 71.55274,21.75293 71.30079,14.28223 70.14036,11.38184 67.47492,4.87793 63.66576,-5.53711 71.52491,-10.63477 71.69129,-21.5332 67.74276,-28.56445 65.36684,-24.3457 61.35461,-9.36035 44.71551))",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "Year is greater than or equal to 1980",
 "Year is less than or equal to 2021"
 ]
}

 The dataset includes 499 records from 55 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0322397-210914110416597/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.uew29r
title: Occurrence Download

description: A dataset containing 1018 species occurrences available in GBIF matching the query:
{
 "and" : [
 "BasisOfRecord is Specimen",
 "Country is Spain",
 "TaxonKey is Quercus suber L."
 ]
}

 The dataset includes 1018 records from 65 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0011312-230918134249559/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25549/pcra-c14-1845
title: Seiatel' istiny = The sower of truth, vol. 16, no. 4 (April 1931)

description: [description english/roman)] Monthly
DOI: 10.15468/dl.z7x2em
title: Occurrence Download

description: A dataset containing 2199199 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Apus apus (Linnaeus, 1758), Apus pallidus (Shelley, 1870), Apus unicolor (Jardine, 1830), Caprimulgus europaeus Linnaeus, 1758, Caprimulgus ruficollis Temminck, 1820, Tachymarptis melba (Linnaeus, 1758), Apus melba (Linnaeus, 1758))",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present",
 {
 "or" : [
 "GadmGid is ALB",
 "GadmGid is AND",
 "GadmGid is AUT",
 "GadmGid is BEL",
 "GadmGid is BUL",
 "GadmGid is BIH",
 "GadmGid is BLR",
 "GadmGid is CHE",
 "GadmGid is CYP",
 "GadmGid is CZE",
 "GadmGid is DEU",
 "GadmGid is DNK",
 "GadmGid is ESP",
 "GadmGid is EST",
 "GadmGid is FIN",
 "GadmGid is FRA",
 "GadmGid is GBR",
 "GadmGid is GRC",
 "GadmGid is HRV",
 "GadmGid is HUN",
 "GadmGid is IRL",
 "GadmGid is ISL",
 "GadmGid is ITA",
 "GadmGid is LIE",
 "GadmGid is LTU",
 "GadmGid is LUX",
 "GadmGid is LVA",
 "GadmGid is MCO",
 "GadmGid is MDA",
 "GadmGid is MKD",
 "GadmGid is MLT",
 "GadmGid is MNE",
 "GadmGid is NLD",
 "GadmGid is NOR",
 "GadmGid is POL",
 "GadmGid is PRT",
 "GadmGid is ROU",
 "GadmGid is RUS",
 "GadmGid is SJM",
 "GadmGid is SMR",
 "GadmGid is SRB",
 "GadmGid is SVK",
 "GadmGid is SVN",
 "GadmGid is SWE",
 "GadmGid is TUR",
 "GadmGid is UKR",
 "GadmGid is VAT",
 "GadmGid is XKO"
 ]
 }
 ]
}

 The dataset includes 2199199 records from 3214 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0071621-230530130749713/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.5281/zenodo.17429784
title: VFRDX V1 & V2 PDF.pdf

description: V2 — Enhanced UHT-ER=EPR VFRDX + LGD for Starship: 2m toroidal chamber delivers 300V DC @ 3kW + 10³–10⁶ N ZPE thrust. Fits 9m payload bay, +20% Raptor efficiency.
DOI: 10.5281/zenodo.17429785
title: VFRDX V1 & V2 PDF.pdf

description: V2 — Enhanced UHT-ER=EPR VFRDX + LGD for Starship: 2m toroidal chamber delivers 300V DC @ 3kW + 10³–10⁶ N ZPE thrust. Fits 9m payload bay, +20% Raptor efficiency.
DOI: 10.3535/ad2-zyq-k5g
title: Mammalia Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/nae-n42-5rz
title: Porifera Grant, 1836

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.15468/dl.wb2hpx
title: Occurrence Download

description: A dataset containing 3 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Guatteria beniensis"
 ]
}

 The dataset includes 3 records from 2 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0053762-251009101135966/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.hnye7t
title: Occurrence Download

description: A dataset containing 18460 species occurrences available in GBIF matching the query:
{
 "and" : [
 "DatasetKey is EOD – eBird Observation Dataset",
 "Geometry POLYGON((139.6882 36.19538,139.70439 36.20055,139.71473 36.22505,139.72912 36.23899,139.71316 36.26125,139.72575 36.27249,139.73429 36.28936,139.71338 36.2943,139.70596 36.28149,139.65515 36.27339,139.65178 36.2608,139.64773 36.24731,139.65403 36.22663,139.65268 36.22101,139.66774 36.19942,139.6882 36.19538))",
 "HasCoordinate is true",
 "OccurrenceStatus is Present",
 "Year 2014-2025"
 ]
}

 The dataset includes 18460 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0053763-251009101135966/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.e3ef24
title: Occurrence Download

description: A dataset containing 762592 species occurrences available in GBIF matching the query:
{
 "and" : [
 {
 "and" : [
 "HasGeospatialIssue is false",
 "HasCoordinate is true",
 "OccurrenceStatus is Present",
 {
 "not" : {
 "BasisOfRecord" : [
 "is one of (Fossil, Living Specimen)"
 ]
 }
 }
 ]
 },
 "TaxonKey is one of (Muraltia curvipetala, Muraltia arachnoidea, Marrubium supinum, Streptocarpus pusillus, Adromischus bicolor, Hibiscus citrinus, Rhus kearneyi, Cassinia hewsoniae, Ozothamnus obcordatus, Stenocarpha ritovegana, Chiloglottis platyptera, Phlomis brevilabris, Phlomis lanata, Bromus segoviensis, Myriophyllum amphibium, Myriophyllum glomeratum, Cardamine thyrsoidea, Cardamine vulgaris, Carum proliferum, Astartea zephyra, Bursaria calcicola, Lasiopogon brachypterus, Gayophytum oligospermum, Calochilus campestris, Restio acockii, Restio bifidus, Thamnochortus fraternus, Medicago doliata, Opuntia bravoana, Phagnalon paschale, Phlomis carica, Phlomis olivieri, Bolanthus chelmicus, Cardamine bonariensis, Cephalaria anatolica, Cephalaria hakkiarica, Cephalaria kotschyi, Comesperma drummondii, Comesperma virgatum, Haemodorum interrex, Tetraglochin cristata, Cardamine tenuifolia, Restio sejunctus, Stypandra jamesii, Euclea racemosa, Perotis rara, Oenanthe peucedanifolia, Oenanthe incrassata, Trigonella stellata, Trigonella cassia, Trigonella caelesyriaca, Phlomis semiorbata, Muraltia knysnaensis, Muraltia stokoei, Muraltia macowanii, Hibiscus phoeniceus, Cassinia subtropica, Cassinia tegulata, Bonatea antennifera, Maianthemum racemosum, Bromus brachystachys, Myriophyllum implicatum, Rhus schiedeana, Muraltia muirii, Muraltia montana, Marrubium incanum, Hermannia cristata, Hermannia helianthemum, Hermannia rigida, Cardamine matthioli, Crenidium spinescens, Melampodium repens, Thamnochortus arenarius, Digitaria minima, Polystichum incongruum, Phaseolus sonorensis, Gnidia decurrens, Cardamine cordata, Cardamine enriquei, Cardamine hirsuta, Cephalaria microcephala, Comesperma calcicola, Comesperma nudiusculum, Comesperma rhadinocarpum, Comesperma volubile, Carduus nawaschini, Cardamine tenuirostris, Marrubium werneri, Restio leptostachyus, Restio rarus, Restio setiger, Bromus sitchensis, Medicago falcata, Medicago sativa, Medicago soleirolii, Carduus veronensis, Cotula calcicola, Trigonella berythea, Trigonella cilicica, Muraltia hirsuta)",
 "Year is greater than or equal to 1950"
 ]
}

 The dataset includes 762592 records from 3092 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0053747-251009101135966/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.5281/zenodo.14894182
title: Data supporting the publication: "Plasmon confinement in fractal quantum systems"

description: This repository contains data to reproduce all figures for the paper:

"Plasmon confinement in fractal quantum systems"Tom Westerhout, Edo van Veen, Mikhail I. Katsnelson, and Shengjun Yuan

Abstract: Recent progress in the fabrication of materials has made it possible to create arbitrary nonperiodic two-dimensional structures in the quantum plasmon regime. This paves the way for exploring the quantum plasmonic properties of electron gases in complex geometries. In this work we study systems with a fractal dimension. We calculate the full dielectric functions of two prototypical fractals with different ramification numbers, namely the Sierpinski carpet and gasket. We show that the Sierpinski carpet has a dispersion comparable to a square lattice, but the Sierpinski gasket features highly localized plasmon modes with a flat dispersion. This strong plasmon confinement in finitely ramified fractals can provide a novel setting for manipulating light at the quantum level.
DOI: 10.5281/zenodo.14894183
title: Data supporting the publication: "Plasmon confinement in fractal quantum systems"

description: This repository contains data to reproduce all figures for the paper:

"Plasmon confinement in fractal quantum systems"Tom Westerhout, Edo van Veen, Mikhail I. Katsnelson, and Shengjun Yuan

Abstract: Recent progress in the fabrication of materials has made it possible to create arbitrary nonperiodic two-dimensional structures in the quantum plasmon regime. This paves the way for exploring the quantum plasmonic properties of electron gases in complex geometries. In this work we study systems with a fractal dimension. We calculate the full dielectric functions of two prototypical fractals with different ramification numbers, namely the Sierpinski carpet and gasket. We show that the Sierpinski carpet has a dispersion comparable to a square lattice, but the Sierpinski gasket features highly localized plasmon modes with a flat dispersion. This strong plasmon confinement in finitely ramified fractals can provide a novel setting for manipulating light at the quantum level.
DOI: 10.15468/dl.h2vrrc
title: Occurrence Download

description: A dataset containing 1896 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Continent is Asia",
 "Country is Indonesia",
 "DatasetKey is one of (Naturalis Biodiversity Center (NL) - Aves, iNaturalist Research-grade Observations, NABU|naturgucker, FishBase Database, ASEAN Fish Occurrences Literature, The Ichthyology Collection at the Staatliches Museum für Naturkunde Stuttgart, INSDC Sequences)",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "IucnRedListCategory is one of (CR, EW)"
 ]
}

 The dataset includes 1896 records from 6 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0009441-250227182400228/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.5281/zenodo.14931095
title: Data supporting the publication: "Generalization properties of neural network approximations to frustrated magnet ground states"

description: This repository contains data to reproduce all figures for the paper:

"Generalization properties of neural network approximations to frustrated magnet ground states"Tom Westerhout, Nikita Astrakhantsev, Konstantin S. Tikhonov, Mikhail I. Katsnelson & Andrey A. Bagrov

Abstract: Neural quantum states (NQS) attract a lot of attention due to their potential to serve as a very expressive variational ansatz for quantum many-body systems. Here we study the main factors governing the applicability of NQS to frustrated magnets by training neural networks to approximate ground states of several moderately-sized Hamiltonians using the corresponding wave function structure on a small subset of the Hilbert space basis as training dataset. We notice that generalization quality, i.e. the ability to learn from a limited number of samples and correctly approximate the target state on the rest of the space, drops abruptly when frustration is increased. We also show that learning the sign structure is considerably more difficult than learning amplitudes. Finally, we conclude that the main issue to be addressed at this stage, in order to use the method of NQS for simulating realistic models, is that of generalization rather than expressibility.
DOI: 10.5281/zenodo.14931097
title: Data supporting the publication: "Generalization properties of neural network approximations to frustrated magnet ground states"

description: This repository contains data to reproduce all figures for the paper:

"Generalization properties of neural network approximations to frustrated magnet ground states"Tom Westerhout, Nikita Astrakhantsev, Konstantin S. Tikhonov, Mikhail I. Katsnelson & Andrey A. Bagrov

Abstract: Neural quantum states (NQS) attract a lot of attention due to their potential to serve as a very expressive variational ansatz for quantum many-body systems. Here we study the main factors governing the applicability of NQS to frustrated magnets by training neural networks to approximate ground states of several moderately-sized Hamiltonians using the corresponding wave function structure on a small subset of the Hilbert space basis as training dataset. We notice that generalization quality, i.e. the ability to learn from a limited number of samples and correctly approximate the target state on the rest of the space, drops abruptly when frustration is increased. We also show that learning the sign structure is considerably more difficult than learning amplitudes. Finally, we conclude that the main issue to be addressed at this stage, in order to use the method of NQS for simulating realistic models, is that of generalization rather than expressibility.
DOI: 10.5281/zenodo.14973515
title: Data supporting the publication "Many-body quantum sign structures as non-glassy Ising models"

description: This repository contains all raw data that were used to draw conclusions and generate figures for the paper:


"Many-body quantum sign structures as non-glassy Ising models"
by Westerhout, T., Katsnelson, M. I., & Bagrov, A. A.


Abstract: The non-trivial phase structure of the eigenstates of many-body quantum systems severely limits the applicability of quantum Monte Carlo, variational, and machine learning methods. Here, we study real-valued signful ground-state wave functions of frustrated quantum spin systems and, assuming that the tasks of finding wave function amplitudes and signs can be separated, show that the signs can be easily bootstrapped from the amplitudes. We map the problem of finding the sign structure to an auxiliary classical Ising model defined on a subset of the Hilbert space basis. We show that the Ising model does not exhibit significant frustrations even for highly frustrated parental quantum systems, and is solvable with a fully deterministic O(K log K)-time combinatorial algorithm (where K is the Ising model size). Given the ground state amplitudes, we reconstruct the signs of the ground states of several frustrated quantum models, thereby revealing the hidden simplicity of many-body sign structures.
DOI: 10.5281/zenodo.8221179
title: Data supporting the publication "Many-body quantum sign structures as non-glassy Ising models"

description: This repository contains all raw data that were used to draw conclusions and generate figures for the paper:


"Many-body quantum sign structures as non-glassy Ising models"
by Westerhout, T., Katsnelson, M. I., & Bagrov, A. A.


Abstract: The non-trivial phase structure of the eigenstates of many-body quantum systems severely limits the applicability of quantum Monte Carlo, variational, and machine learning methods. Here, we study real-valued signful ground-state wave functions of frustrated quantum spin systems and, assuming that the tasks of finding wave function amplitudes and signs can be separated, show that the signs can be easily bootstrapped from the amplitudes. We map the problem of finding the sign structure to an auxiliary classical Ising model defined on a subset of the Hilbert space basis. We show that the Ising model does not exhibit significant frustrations even for highly frustrated parental quantum systems, and is solvable with a fully deterministic O(K log K)-time combinatorial algorithm (where K is the Ising model size). Given the ground state amplitudes, we reconstruct the signs of the ground states of several frustrated quantum models, thereby revealing the hidden simplicity of many-body sign structures.