cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.25921/3mjn-9827
title: NOAA/WDS Paleoclimatology - Lake Baikal Region, Russia 600 Year Tree Ring Stable Isotope Data

description: Long series of paleodata describing environmental and climatic changes create an objective basis for forecasting. The problem of correlation between oxygen isotope chronologies from atmospheric precipitations fixed in ice cores and from cellulose molecules of tree rings. It is concluded that current ideas on these processes, in particular, the presented new results do not contradict the hypothesis on the presence of a natural mechanism of synchronization of isotope chronologies, which may be caused by the global character of the forcing action. Within this hypothesis, the use of the new "compression-extension" algorithm is justified and the possibility of correcting ice core chronologies using tree-ring isotope chronologies is shown.
description: Oxygen and carbon isotope (d18O) data from Larix sibirica tree-rings collected in 3 locations in the Pre-Baikal region west of Lake Baikal, Siberia, Russia, for the past ~600 years. The Davan Pass site (55 51'N, 108 55'E, 1400 m.s.l.) is part of the Baikalskii ridge. The locality can be characterized as overwet with a cool summer and a long severe snowy winter. Annual precipitation can be in excess of 1000 mm. The duration of snow cover is about 8-10 months. The vegetation season is from mid-June till the end of August; its mean duration is about 70-80 days (Kas'yanova, 2004). The larch wood samples were taken nearby the upper timberline, where some trees grow side by side with tundra lichen. Olkhon Island (53 17'N, 107 38'E, 530 m.s.l.) is the largest island of Lake Baikal. The locality is dry with a medium warm summer and a severe winter with little snow. The duration of snow cover is about 6-7 months. Vegetation season lasts from the third decade of May till mid-September, its mean duration is about 138 days. (Kas'yanova, 2004). The larch wood samples were taken in the northern part of the island, mostly occupied by larch taiga. The ecotope of trees near Irkutsk (52 14'N 104 11'E, 530 m.s.l., about 70 km WNW from the city of Irkutsk) is located in the southern taiga. This site has optimal conditions of tree growth: a medium wet, warm summer, a medium severe winter with little snow. Snow covers the territory for about 6-7 months. Vegetation starts at the end of the first decade of May and stops at the mid-September, about 148 days. (Kuzevanov, et al., 2005).
IITRDB22
DOI: 10.15468/dl.y3hk9t
title: Occurrence Download

description: A dataset containing 56 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Lecidea sphaerella)",
 "Country is one of (Norway)",
 "HasCoordinate is true",
 "OccurrenceStatus is Present",
 "CoordinateUncertaintyInMeters is less than or equal to 1000",
 "Year is greater than or equal to 1986",
 "Year is less than or equal to 2025",
 {
 "not" : {
 "BasisOfRecord" : [
 "is Fossil"
 ]
 }
 },
 {
 "not" : {
 "BasisOfRecord" : [
 "is Machine Observation"
 ]
 }
 }
 ]
}

 The dataset includes 56 records from 4 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0025251-260208012135463/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.b83bkm
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Lecidea subrhagadiella)",
 "Country is one of (Norway)",
 "HasCoordinate is true",
 "OccurrenceStatus is Present",
 "CoordinateUncertaintyInMeters is less than or equal to 1000",
 "Year is greater than or equal to 1986",
 "Year is less than or equal to 2025",
 {
 "not" : {
 "BasisOfRecord" : [
 "is Fossil"
 ]
 }
 },
 {
 "not" : {
 "BasisOfRecord" : [
 "is Machine Observation"
 ]
 }
 }
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0025252-260208012135463/datasets/export for details.
DOI: 10.26208/vw97-3m21
title: Hydrocarbons data compilation

description: Distinguishing between microbial, abiotic, and thermogenic methane sources is fundamental for understanding Earth’s carbon cycle and for assessing potential biosignatures beyond our planet. Stable carbon isotopic analyses have long been central to geochemical investigations, and extending such approaches to volatile reservoirs on other Solar System bodies remains a major goal of planetary science. However, whether, the carbon isotopic composition of methane can be confidently used as a biosignature remains debated. Over the years, numerous diagnostic diagrams have been developed to infer methane origins based on stable isotope measurements and hydrocarbon compositions, yet unambiguous source identification remains challenging. A key limitation is the strong dependence of existing proxies on the isotopic composition of the initial carbon pool, potentially an unknown parameter in many planetary environments. Here, we compiled a dataset comprising 351 microbial natural samples, 94 microbial laboratory experiments, 615 thermogenic natural samples, 6 thermogenic laboratory experiments, 125 abiotic natural samples, and 52 abiotic laboratory experiments, spanning early and recent studies. We apply the same isotopic and compositional proxies used in conventional approaches but also integrate them into combined parameters, such as the difference in carbon isotopic composition between methane and ethane (Δδ¹³CH₄,C₂H₆), which normalize isotope signatures and reduce sensitivity to initial carbon isotopic composition. In the resulting diagnostic diagrams, a Bayes classifier provides a statistical framework that quantifies source probabilities and enables robust discrimination between microbial and abiotic methane. The results suggest hydrocarbon geochemistry can be a transferable and rigorous tool for interpreting methane origins across terrestrial and extraterrestrial environments.
DOI: 10.5281/zenodo.18674649
title: IMPROVING DIDACTIC SUPPORT FOR THE PRACTICAL APPLICATION OF POSITIONAL PROBLEMS IN PERSPECTIVE

description: This article addresses the optimization of didactic materials used in teaching positional problems within the framework of perspective projection. Positional problems, which involve determining the spatial relationships between geometric elements (points, lines, and planes), often present significant cognitive challenges for students in engineering graphics. The research focuses on improving the didactic support system by integrating modern multimedia tools, 3D modeling, and interactive visualization techniques. By shifting from traditional static methods to dynamic digital frameworks, the study demonstrates how the practical application of perspective rules can be made more intuitive and precise. The results suggest that enhanced didactic support not only improves students' spatial imagination but also bridges the gap between theoretical descriptive geometry and real-world design execution.
DOI: 10.5281/zenodo.18674650
title: IMPROVING DIDACTIC SUPPORT FOR THE PRACTICAL APPLICATION OF POSITIONAL PROBLEMS IN PERSPECTIVE

description: This article addresses the optimization of didactic materials used in teaching positional problems within the framework of perspective projection. Positional problems, which involve determining the spatial relationships between geometric elements (points, lines, and planes), often present significant cognitive challenges for students in engineering graphics. The research focuses on improving the didactic support system by integrating modern multimedia tools, 3D modeling, and interactive visualization techniques. By shifting from traditional static methods to dynamic digital frameworks, the study demonstrates how the practical application of perspective rules can be made more intuitive and precise. The results suggest that enhanced didactic support not only improves students' spatial imagination but also bridges the gap between theoretical descriptive geometry and real-world design execution.
DOI: 10.15468/dl.2vmgxj
title: Occurrence Download

description: A dataset containing 862 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is China",
 "TaxonKey is Magnolia officinalis Rehder & E.H.Wilson"
 ]
}

 The dataset includes 862 records from 31 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0007535-250415084134356/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.eccth8
title: Occurrence Download

description: A dataset containing 1 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Carassius auratus",
 "Country is Cyprus",
 "HasCoordinate is true"
 ]
}

 The dataset includes 1 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0015382-250717081556266/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.2ywdcm
title: Occurrence Download

description: A dataset containing 192805 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Tracheophyta",
 "Country is Croatia",
 "HasCoordinate is true"
 ]
}

 The dataset includes 192805 records from 171 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0015348-250717081556266/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.5ufqx8
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 "HasGeospatialIssue is false",
 "HasCoordinate is true",
 "OccurrenceStatus is Present",
 "BasisOfRecord is one of (Human Observation, Machine Observation, Occurrence evidence, Observation)",
 "TaxonKey is one of (Felis silvestris)",
 "Country is one of (Bermuda, Canada, Greenland, Saint Pierre and Miquelon, United States of America)"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0015380-250717081556266/datasets/export for details.
DOI: 10.15468/dl.xcm2b4
title: Occurrence Download

description: A dataset containing 2 species occurrences available in GBIF matching the query:
{
 "and" : [
 "HasGeospatialIssue is false",
 "HasCoordinate is true",
 "OccurrenceStatus is Present",
 "BasisOfRecord is one of (Human Observation, Machine Observation, Occurrence evidence, Observation)",
 "TaxonKey is one of (Felis silvestris)",
 "Country is one of (Anguilla, Antigua and Barbuda, Argentina, Aruba, Bahamas, Barbados, Belize, Bolivia (Plurinational State of), Bonaire, Sint Eustatius and Saba, Bouvet Island, Brazil, Cayman Islands, Chile, Colombia, Costa Rica, Cuba, Curaçao, Dominica, Dominican Republic, Ecuador, El Salvador, Falkland Islands (Malvinas), French Guiana, Grenada, Guadeloupe, Guatemala, Guyana, Haiti, Honduras, Jamaica, Martinique, Mexico, Montserrat, Nicaragua, Panama, Paraguay, Peru, Puerto Rico, Saint Barthélemy, Saint Kitts and Nevis, Saint Lucia, Saint Martin (French part), Saint Vincent and the Grenadines, Sint Maarten (Dutch part), South Georgia and the South Sandwich Islands, Suriname, Trinidad and Tobago, Turks and Caicos Islands, Uruguay, Venezuela (Bolivarian Republic of), Virgin Islands (British), Virgin Islands (U.S.))"
 ]
}

 The dataset includes 2 records from 2 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0015381-250717081556266/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.ma8yf4
title: Occurrence Download

description: A dataset containing 127 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Aedes albopictus",
 "Country is Gabon",
 "HasCoordinate is true"
 ]
}

 The dataset includes 127 records from 4 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0015383-250717081556266/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.4j8uvr
title: Occurrence Download

description: A dataset containing 15 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Aedes albopictus",
 "Country is Guatemala",
 "HasCoordinate is true"
 ]
}

 The dataset includes 15 records from 3 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0015385-250717081556266/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.jbj8za
title: Occurrence Download

description: A dataset containing 38 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Carassius auratus",
 "Country is Czechia",
 "HasCoordinate is true"
 ]
}

 The dataset includes 38 records from 5 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0015384-250717081556266/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.8pevup
title: Occurrence Download

description: A dataset containing 33363 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Castor canadensis",
 "Country is Chile",
 "HasCoordinate is true"
 ]
}

 The dataset includes 33363 records from 4 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0015386-250717081556266/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.93vaqm
title: Occurrence Download

description: A dataset containing 2 species occurrences available in GBIF matching the query:
{
 "and" : [
 "HasGeospatialIssue is false",
 "HasCoordinate is true",
 "OccurrenceStatus is Present",
 "BasisOfRecord is one of (Human Observation, Machine Observation, Occurrence evidence, Observation)",
 "TaxonKey is one of (Felis silvestris)",
 "Country is one of (American Samoa, Australia, Christmas Island, Cocos (Keeling) Islands, Cook Islands, Fiji, French Polynesia, Guam, Heard Island and McDonald Islands, Kiribati, Marshall Islands, Micronesia (Federated States of), Nauru, New Caledonia, New Zealand, Niue, Norfolk Island, Northern Mariana Islands, Palau, Papua New Guinea, Pitcairn, Samoa, Solomon Islands, Tokelau, Tonga, Tuvalu, United States Minor Outlying Islands, Vanuatu, Wallis and Futuna)"
 ]
}

 The dataset includes 2 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0015390-250717081556266/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.v8fkdd
title: Occurrence Download

description: A dataset containing 16 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is BOLD:AAZ3903"
 ]
}

 The dataset includes 16 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0015388-250717081556266/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.7vqfyu
title: Occurrence Download

description: A dataset containing 118 species occurrences available in GBIF matching the query:
{
 "and" : [
 "BasisOfRecord is one of (Machine Observation, Human Observation)",
 "DatasetKey is one of (Registro de trampas cámara del monitoreo a escala de paisajes, Registros de especies priorizadas de mamíferos de Colombia, recopilados a partir de la información de fototrampeo, Field Museum of Natural History (Action) Mammals Sightings, Registros de fauna mediante fototrampeo en Caño Cristales, La Macarena, Meta, Registro de cámaras trampa en el Resguardo Indígena Llanos del Yarí- Yaguara II, Rapid Assessment Program (RAP) Biodiversity Survey Database, Mamíferos medianos y grandes de la cuenca media del río Putumayo, el Encanto, Amazonas - Expedición Binacional, Fauna de Caño Cristales, Sierra de La Macarena, Meta - Colombia, Fauna y Flora del proyecto: Plan de Manejo Ambiental para la construcción y operación de las Plataformas Multipozos Bienparado A y E, su vía de acceso y su línea de flujo - Área de Desarrollo Bienparado, Bloque PUT 8)",
 "TaxonKey is Atelocynus microtis"
 ]
}

 The dataset includes 118 records from 9 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0015387-250717081556266/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.952hqe
title: Occurrence Download

description: A dataset containing 855 species occurrences available in GBIF matching the query:
{
 "and" : [
 "HasGeospatialIssue is false",
 "HasCoordinate is true",
 "OccurrenceStatus is Present",
 "BasisOfRecord is one of (Human Observation, Machine Observation, Occurrence evidence, Observation)",
 "TaxonKey is one of (Felis silvestris)",
 "Country is one of (Algeria, Angola, Benin, Botswana, British Indian Ocean Territory, Burkina Faso, Burundi, Cabo Verde, Cameroon, Central African Republic, Chad, Comoros, Congo, Congo, Democratic Republic of the, Côte d’Ivoire, Djibouti, Egypt, Equatorial Guinea, Eritrea, Eswatini, Ethiopia, French Southern Territories, Gabon, Gambia, Ghana, Guinea, Guinea-Bissau, Kenya, Lesotho, Liberia, Libya, Madagascar, Malawi, Mali, Mauritania, Mauritius, Mayotte, Morocco, Mozambique, Namibia, Niger, Nigeria, Réunion, Rwanda, Saint Helena, Ascension and Tristan da Cunha, Sao Tome and Principe, Senegal, Seychelles, Sierra Leone, Somalia, South Africa, South Sudan, Sudan, Tanzania, United Republic of, Togo, Tunisia, Uganda, Western Sahara, Zambia, Zimbabwe)"
 ]
}

 The dataset includes 855 records from 17 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0015394-250717081556266/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.xpe7n9
title: Occurrence Download

description: A dataset containing 376449 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Continent is Europe",
 "Month is one of (March, April, May, June, July, August, January, February, September, October, November, December)",
 "OccurrenceStatus is Present",
 "TaxonKey is Linaria cannabina",
 "Year 2023-2025"
 ]
}

 The dataset includes 376449 records from 247 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0015353-250717081556266/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.j3dqqe
title: Occurrence Download

description: A dataset containing 1 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Carassius auratus",
 "Country is Ethiopia",
 "HasCoordinate is true"
 ]
}

 The dataset includes 1 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0015395-250717081556266/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.hskkxz
title: Occurrence Download

description: A dataset containing 113 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Castor canadensis",
 "Country is Argentina",
 "HasCoordinate is true"
 ]
}

 The dataset includes 113 records from 3 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0015396-250717081556266/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.t787up
title: Occurrence Download

description: A dataset containing 1942 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Aedes albopictus",
 "Country is Indonesia",
 "HasCoordinate is true"
 ]
}

 The dataset includes 1942 records from 8 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0015397-250717081556266/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.r5epwt
title: Occurrence Download

description: A dataset containing 14 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is BOLD:AED2188"
 ]
}

 The dataset includes 14 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0015398-250717081556266/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.5281/zenodo.16182184
title: 22-ferrymans-ledger-amharic.jpg
DOI: 10.5281/zenodo.16182185
title: 22-ferrymans-ledger-amharic.jpg
DOI: 10.15468/dl.zxa7hd
title: Occurrence Download

description: A dataset containing 873289 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Tracheophyta",
 "Country is Czechia",
 "HasCoordinate is true"
 ]
}

 The dataset includes 873289 records from 187 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0015360-250717081556266/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.g672f4
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Carassius auratus",
 "Country is Fiji",
 "HasCoordinate is true"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0015399-250717081556266/datasets/export for details.
DOI: 10.15468/dl.5u695f
title: Occurrence Download

description: A dataset containing 5792 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Aedes albopictus",
 "Country is Italy",
 "HasCoordinate is true"
 ]
}

 The dataset includes 5792 records from 11 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0015400-250717081556266/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.x82f3d
title: Occurrence Download

description: A dataset containing 57 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Spirobranchus capensis"
 ]
}

 The dataset includes 57 records from 4 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0015401-250717081556266/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.5pcj3z
title: Occurrence Download

description: A dataset containing 182 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Ulex europaeus",
 "Country is Chile",
 "HasCoordinate is true"
 ]
}

 The dataset includes 182 records from 6 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0015402-250717081556266/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.4etx3t
title: Occurrence Download

description: A dataset containing 6276 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Ulex europaeus",
 "Country is New Zealand",
 "HasCoordinate is true"
 ]
}

 The dataset includes 6276 records from 17 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0015403-250717081556266/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.