cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.25549/inscriptifact-ouc110814179
title: Copper Scroll

description: [Text Description:] ❧ list of buried treasure ❧ [Text or Publication Number Note:] 3Q15 Copper Scroll ❧ [Excavation Description:] Found during survey of cliffs at Qumran in March 1952 by Roland de Vaux and William Reed. ❧ [Medium:] Metal ❧ [Script Note:] Jewish ❧ [Physical Object Description:] 23 oxydized copper half-cylinder segments with incised letters
DOI: 10.25549/inscriptifact-ouc110814287
title: Copper Scroll

description: [Text Description:] ❧ list of buried treasure ❧ [Text or Publication Number Note:] 3Q15 Copper Scroll ❧ [Excavation Description:] Found during survey of cliffs at Qumran in March 1952 by Roland de Vaux and William Reed. ❧ [Medium:] Metal ❧ [Script Note:] Jewish ❧ [Physical Object Description:] 23 oxydized copper half-cylinder segments with incised letters
DOI: 10.25549/inscriptifact-ouc110814301
title: Copper Scroll

description: [Text Description:] ❧ list of buried treasure ❧ [Text or Publication Number Note:] 3Q15 Copper Scroll ❧ [Excavation Description:] Found during survey of cliffs at Qumran in March 1952 by Roland de Vaux and William Reed. ❧ [Medium:] Metal ❧ [Script Note:] Jewish ❧ [Physical Object Description:] 23 oxydized copper half-cylinder segments with incised letters
DOI: 10.25549/inscriptifact-ouc110814399
title: Copper Scroll

description: [Text Description:] ❧ list of buried treasure ❧ [Text or Publication Number Note:] 3Q15 Copper Scroll ❧ [Excavation Description:] Found during survey of cliffs at Qumran in March 1952 by Roland de Vaux and William Reed. ❧ [Medium:] Metal ❧ [Script Note:] Jewish ❧ [Physical Object Description:] 23 oxydized copper half-cylinder segments with incised letters
DOI: 10.15468/dl.3wyc8f
title: Occurrence Download

description: A dataset containing 919 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Weigela praecox"
 ]
}

 The dataset includes 919 records from 74 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0048864-250811113504898/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.43zb7n
title: Occurrence Download

description: A dataset containing 16 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Oxynoemacheilus theophilii",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "Geometry POLYGON ((-6.6 29.26705, -6.6 50.94, 40.81373 50.94, 40.81373 29.26705, -6.6 29.26705))",
 "BasisOfRecord is one of (Human Observation, Machine Observation, Observation, Material sample)"
 ]
}

 The dataset includes 16 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0048866-250811113504898/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.u79sb7
title: Occurrence Download

description: A dataset containing 346352000 species occurrences available in GBIF matching the query:
{
 "License" : [
 "is CC0 1.0"
 ]
}

 The dataset includes 346352000 records from 21161 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0009299-250515123054153/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.n53sur
title: Occurrence Download

description: A dataset containing 14182 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Icaricia icarioides"
 ]
}

 The dataset includes 14182 records from 86 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0000557-251120083545085/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.m69ryn
title: Occurrence Download

description: A dataset containing 7488 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Panthera tigris"
 ]
}

 The dataset includes 7488 records from 134 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0000558-251120083545085/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.ncfqjx
title: Occurrence Download

description: A dataset containing 1688 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Plantae",
 "HasGeospatialIssue is false",
 "HasCoordinate is true",
 "OccurrenceStatus is Present",
 "Country is Germany",
 "DecimalLongitude is greater than or equal to 7.30737954984995",
 "DecimalLongitude is less than 7.31043910303434",
 "DecimalLatitude is greater than or equal to 47.27011",
 "DecimalLatitude is less than or equal to 55.05864"
 ]
}

 The dataset includes 1688 records from 20 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0000559-251120083545085/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.9ndu4g
title: Occurrence Download

description: A dataset containing 3087 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is Spain",
 "License is one of (CC-BY 4.0, CC0 1.0)",
 "TaxonKey is Meles meles"
 ]
}

 The dataset includes 3087 records from 25 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0000560-251120083545085/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.8bzaby
title: Occurrence Download

description: A dataset containing 5649070 species occurrences available in GBIF matching the query:
(Query is too complex. Can be viewed on the landing page)

 The dataset includes 5649070 records from 797 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0000518-251120083545085/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.yexrqz
title: Occurrence Download

description: A dataset containing 4097 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is Canada",
 "DatasetKey is iNaturalist Research-grade Observations",
 "Month is May",
 "StateProvince is New Brunswick",
 "Year 2025-2025"
 ]
}

 The dataset includes 4097 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0000561-251120083545085/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.2ytbkq
title: Occurrence Download

description: A dataset containing 16042 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Boletus reticulatus"
 ]
}

 The dataset includes 16042 records from 255 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0000562-251120083545085/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.3c4594
title: Occurrence Download

description: A dataset containing 242 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is China",
 "TaxonKey is Phyllostachys mannii"
 ]
}

 The dataset includes 242 records from 7 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0000563-251120083545085/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.v6mhns
title: Occurrence Download

description: A dataset containing 1817 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Plantae",
 "HasGeospatialIssue is false",
 "HasCoordinate is true",
 "OccurrenceStatus is Present",
 "Country is Germany",
 "DecimalLongitude is greater than or equal to 7.31043910303434",
 "DecimalLongitude is less than 7.31349865621874",
 "DecimalLatitude is greater than or equal to 47.27011",
 "DecimalLatitude is less than or equal to 55.05864"
 ]
}

 The dataset includes 1817 records from 19 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0000565-251120083545085/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.2xjs3d
title: Occurrence Download

description: A dataset containing 42454 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is India",
 "OccurrenceStatus is Present",
 "TaxonKey is Polypodiopsida"
 ]
}

 The dataset includes 42454 records from 162 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0000564-251120083545085/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.x3cn4p
title: Occurrence Download

description: A dataset containing 5730472 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Continent is South America",
 "Country is Colombia",
 "GadmGid is COL.2_2",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "Year 1000-2025"
 ]
}

 The dataset includes 5730472 records from 853 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0000523-251120083545085/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.fp84e3
title: Occurrence Download

description: A dataset containing 1235 species occurrences available in GBIF matching the query:
{
 "and" : [
 "BasisOfRecord is one of (Occurrence evidence, Human Observation, Specimen)",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "TaxonKey is Drimys brasiliensis Miers",
 "Year 1970-2025"
 ]
}

 The dataset includes 1235 records from 107 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0003574-250426092105405/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.3nc7qu
title: Occurrence Download

description: A dataset containing 44 species occurrences available in GBIF matching the query:
{
 "and" : [
 "BasisOfRecord is Specimen",
 "TaxonKey is Lonicera cerviculata S.S.White"
 ]
}

 The dataset includes 44 records from 14 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0003579-250426092105405/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.ybh42z
title: Occurrence Download

description: A dataset containing 1235 species occurrences available in GBIF matching the query:
{
 "and" : [
 "BasisOfRecord is one of (Occurrence evidence, Human Observation, Specimen)",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "TaxonKey is Drimys brasiliensis Miers",
 "Year 1970-2025"
 ]
}

 The dataset includes 1235 records from 107 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0003581-250426092105405/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.pahevr
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Bromus secalinus L.",
 "Country is Syrian Arab Republic"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0009483-250525065834625/datasets/export for details.
DOI: 10.15468/dl.fc3dgx
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Maulisia Parr, 1960",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "BasisOfRecord is one of (Specimen, Living Specimen, Observation, Human Observation, Machine Observation, Material sample, Literature Occurrence, Material citation, Occurrence evidence)",
 "Geometry POLYGON ((44.9648 1.2321,45.9851 1.8496,44.9648 1.8496,44.9648 1.2321))"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0009487-250525065834625/datasets/export for details.
DOI: 10.15468/dl.gxv6js
title: Occurrence Download

description: A dataset containing 27664 species occurrences available in GBIF matching the query:
{
 "and" : [
 "DatasetKey is iNaturalist Research-grade Observations",
 "Geometry POLYGON((-71.12923 42.25745,-70.88711 42.25745,-70.88711 42.42763,-71.12923 42.42763,-71.12923 42.25745))",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "MediaType is Image",
 "OccurrenceStatus is Present",
 "TaxonKey is Magnoliopsida"
 ]
}

 The dataset includes 27664 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0009484-250525065834625/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.5281/zenodo.18309237
title: COVID-19-Hospitalisierungen in Deutschland

description: Im Datensatz "COVID-19-Hospitalisierungen in Deutschland" des Robert Koch-Institutswerden täglich aktualisierte Informationen zu Hospitalisierungen im Zusammenhang mit COVID-19 basierend auf den Meldungen nach dem Infektionsschutzgesetz (IfSG) bereitgestellt. Neben tagesaktuellen Fallzahlen und Inzidenzen auf Bundes- und Länderebene enthält der Datensatz auch modellgestützte Schätzungen verzögert gemeldeter Hospitalisierungen mittels Nowcasting. Ziel ist es, die tatsächliche Belastung des Gesundheitssystems durch COVID-19 besser abzubilden, insbesondere durch die Berechnung adjustierter 7-Tage-Hospitalisierungsinzidenzen.
DOI: 10.15468/dl.d92nvm
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{"type":"and","predicates":[{"type":"within","geometry":"POLYGON ((104.15 -2.083823, 104.079691 -2.089388, 104.011111 -2.105947, 103.945948 -2.133092, 103.885805 -2.170155, 103.832163 -2.216225, 103.786342 -2.270168, 103.749469 -2.330656, 103.722455 -2.3962, 103.705964 -2.465188, 103.700405 -2.535922, 103.705916 -2.606659, 103.722363 -2.675658, 103.749343 -2.741219, 103.786193 -2.801729, 103.832007 -2.855695, 103.885657 -2.901788, 103.945822 -2.938873, 104.011019 -2.966035, 104.079642 -2.982605, 104.15 -2.988174, 104.220358 -2.982605, 104.288981 -2.966035, 104.354178 -2.938873, 104.414343 -2.901788, 104.467993 -2.855695, 104.513807 -2.801729, 104.550657 -2.741219, 104.577637 -2.675658, 104.594084 -2.606659, 104.599595 -2.535922, 104.594036 -2.465188, 104.577545 -2.3962, 104.550531 -2.330656, 104.513658 -2.270168, 104.467837 -2.216225, 104.414195 -2.170155, 104.354052 -2.133092, 104.288889 -2.105947, 104.220309 -2.089388, 104.15 -2.083823))"},{"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/0001904-260119153935675/datasets/export for details.
DOI: 10.15468/dl.4q55bk
title: Occurrence Download

description: A dataset containing 4691 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Ranunculus acris, Ranunculus acris, Ranunculus acris, Ranunculus acris)",
 "Geometry POLYGON ((8.643 46.99, 14.1 46.92, 14.43 50.75, 8.534 50.83, 8.643 46.99))",
 "Year is greater than or equal to 2010",
 "OccurrenceStatus is Present",
 "HasGeospatialIssue is false",
 "HasCoordinate is true",
 "CoordinateUncertaintyInMeters is less than or equal to 50",
 "BasisOfRecord is one of (Observation, Human Observation, Machine Observation, Material sample)"
 ]
}

 The dataset includes 4691 records from 9 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0001905-260119153935675/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.5281/zenodo.18309285
title: Senegalia Raf. In: Marchesi E., Mailhos A. & Bonifacino J.M. (Eds.). Flora Uruguaya: Flora Vascular del Uruguay. ISSN 3121-2050, V. 1.0.

description: Citable snapshot. Includes PDF and CSV of collections. Date: January 13th, 2026 at 16:54
DOI: 10.5281/zenodo.18309286
title: Senegalia Raf. In: Marchesi E., Mailhos A. & Bonifacino J.M. (Eds.). Flora Uruguaya: Flora Vascular del Uruguay. ISSN 3121-2050, V. 1.0.

description: Citable snapshot. Includes PDF and CSV of collections. Date: January 13th, 2026 at 16:54
DOI: 10.15468/dl.r5w6zb
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{"type":"and","predicates":[{"type":"within","geometry":"POLYGON ((111.112 -2.074823, 111.041691 -2.080388, 110.973112 -2.096947, 110.907949 -2.124092, 110.847807 -2.161155, 110.794165 -2.207225, 110.748344 -2.261168, 110.711472 -2.321656, 110.684458 -2.3872, 110.667967 -2.456188, 110.662408 -2.526922, 110.667919 -2.597659, 110.684366 -2.666658, 110.711346 -2.732219, 110.748196 -2.792729, 110.794009 -2.846695, 110.847659 -2.892789, 110.907823 -2.929873, 110.97302 -2.957035, 111.041643 -2.973605, 111.112 -2.979174, 111.182357 -2.973605, 111.25098 -2.957035, 111.316177 -2.929873, 111.376341 -2.892789, 111.429991 -2.846695, 111.475804 -2.792729, 111.512654 -2.732219, 111.539634 -2.666658, 111.556081 -2.597659, 111.561592 -2.526922, 111.556033 -2.456188, 111.539542 -2.3872, 111.512528 -2.321656, 111.475656 -2.261168, 111.429835 -2.207225, 111.376193 -2.161155, 111.316051 -2.124092, 111.250888 -2.096947, 111.182309 -2.080388, 111.112 -2.074823))"},{"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/0001906-260119153935675/datasets/export for details.
DOI: 10.15468/dl.5z3duw
title: Occurrence Download

description: A dataset containing 941 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Ranunculus alpestris, Ranunculus alpestris)",
 "Geometry POLYGON ((8.643 46.99, 14.1 46.92, 14.43 50.75, 8.534 50.83, 8.643 46.99))",
 "Year is greater than or equal to 2010",
 "OccurrenceStatus is Present",
 "HasGeospatialIssue is false",
 "HasCoordinate is true",
 "CoordinateUncertaintyInMeters is less than or equal to 50",
 "BasisOfRecord is one of (Observation, Human Observation, Machine Observation, Material sample)"
 ]
}

 The dataset includes 941 records from 8 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0001907-260119153935675/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.5281/zenodo.18298500
title: Machine Learning Enabled Discovery of Photocatalytic ABX3 Perovskite Materials

description: This repository contains the dataset and code for machine learning-based prediction of band edge positions (conduction band minimum, E_CBM, and valence band maximum, E_VBM) in ABX₃ perovskite materials for photocatalytic applications  environmental remediation.

Dataset



Compounds: 209 ABX₃ perovskite materials

Features: 15 elemental descriptors derived from A-site, B-site, and X-site constituents

Targets:



Conduction band minimum (E_CBM)

Valence band maximum (E_VBM)



Ground truth: DFT-calculated values


Methods

Six machine learning algorithms were benchmarked:



CatBoost

XGBoost

Random Forest

LightGBM

Support Vector Machine (SVM)

Decision Tree


Model interpretability was achieved through SHAP (SHapley Additive exPlanations) analysis to extract physical insights linking feature importance to electronic structure principles.
DOI: 10.5281/zenodo.18298501
title: Machine Learning Enabled Discovery of Photocatalytic ABX3 Perovskite Materials

description: This repository contains the dataset and code for machine learning-based prediction of band edge positions (conduction band minimum, E_CBM, and valence band maximum, E_VBM) in ABX₃ perovskite materials for photocatalytic applications  environmental remediation.

Dataset



Compounds: 209 ABX₃ perovskite materials

Features: 15 elemental descriptors derived from A-site, B-site, and X-site constituents

Targets:



Conduction band minimum (E_CBM)

Valence band maximum (E_VBM)



Ground truth: DFT-calculated values


Methods

Six machine learning algorithms were benchmarked:



CatBoost

XGBoost

Random Forest

LightGBM

Support Vector Machine (SVM)

Decision Tree


Model interpretability was achieved through SHAP (SHapley Additive exPlanations) analysis to extract physical insights linking feature importance to electronic structure principles.
DOI: 10.5281/zenodo.18309310
title: Senegalia bonariensis (Gillies ex Hook. & Arn.) Seigler & Ebinger. In: Marchesi E., Mailhos A. & Bonifacino J.M. (Eds.). Flora Uruguaya: Flora Vascular del Uruguay. ISSN 3121-2050, V. 1.0.

description: Citable snapshot. Includes PDF and CSV of collections. Date: January 13th, 2026 at 16:54
DOI: 10.5281/zenodo.18309309
title: Senegalia bonariensis (Gillies ex Hook. & Arn.) Seigler & Ebinger. In: Marchesi E., Mailhos A. & Bonifacino J.M. (Eds.). Flora Uruguaya: Flora Vascular del Uruguay. ISSN 3121-2050, V. 1.0.

description: Citable snapshot. Includes PDF and CSV of collections. Date: January 13th, 2026 at 16:54
DOI: 10.5281/zenodo.18309311
title: Ipseity Daily Data

description: At what rate do individuals say they are X?

Begining on 2025-07-08, I surveyed a small random sample of American adults on a daily cadence.  They responded to many items of the form: Does <signifier> describe you today?

The file ipseity-daily-aggregated.csv in this repository contains the aggregated results through 2025-07-28.  The columns are as follows:



signifier - a word, phrase or emoji

yes_count - the number of respondents who answered yes (aggregated all-time).

no_count - the number of respondents who answered no (aggregated all-time).

prevalence_per_10k - an estimate of the prevalence per 10,000.  If we were to survey 10,000 American adults, how many would we expect to respond yes to this signifier?  The number is calculated as yes_count / (yes_count + no_count) * 10,000.

earliest_obs_date - this date represents the first time this particular signifier was ever displayed to a respondent.  Signifiers are chosen with stochasticity from a long list; new signifiers are sometimes added, old signifiers are sometimes deleted, and a signifier may be moved higher or lower in priority for sampling.

latest_obs_date - the date closest to the present date on which signifier was most recently presented to a respondent.


Version created on 2026-01-20 — cumulative data.