cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.29967883
title: Nuclear Relaxation in Agar Gel in the Presence of Highly Concentrated PEG Coated Magnetic Nanoparticles at Low Magnetic Fields. Application of Temperature Dependent weighting for MRI Thermometry

description: This repository contains raw source data that has been collected using SQUID, low magnetic field NMR, NMRD and MRI to characterize mixed MnZn ferrite nanoparticles as potential temperature sensitive contrast agent for MRI thermometry.
DOI: 10.6084/m9.figshare.29967883.v2
title: Nuclear Relaxation in Agar Gel in the Presence of Magnetic Nanoparticles at Low Magnetic Fields. Application to MRI Thermometry

description: This repository contains raw source data that has been collected using SQUID, low magnetic field NMR, NMRD and MRI to characterize mixed MnZn ferrite nanoparticles as potential temperature sensitive contrast agent for MRI thermometry.
DOI: 10.6084/m9.figshare.29967883.v3
title: Nuclear Relaxation in Agar Gel in the Presence of Highly Concentrated PEG Coated Magnetic Nanoparticles at Low Magnetic Fields. Application of Temperature Dependent weighting for MRI Thermometry

description: This repository contains raw source data that has been collected using SQUID, low magnetic field NMR, NMRD and MRI to characterize mixed MnZn ferrite nanoparticles as potential temperature sensitive contrast agent for MRI thermometry.
DOI: 10.5281/zenodo.18249626
title: AWS Spot Price History

description: AWS Spot Price History

This dataset tracks historical prices for AWS spot prices across all regions. It is updated automatically on the 1st of each month to contain data from the previous month.

Data format

Each month of data is stored as a ZStandard-compressed .tsv.zst file.

The data format matches that returned by AWS's describe-spot-instance-prices, with the exception that availability zones have been replaced by their global ID. For instance, here are some example lines from one capture:

euc1-az2        i4i.8xlarge     Linux/UNIX      1.231800        2023-02-28T23:59:57+00:00euc1-az3        r5b.8xlarge     Red Hat Enterprise Linux        0.749600        2023-02-28T23:59:58+00:00euc1-az3        r5b.8xlarge     SUSE Linux      0.744600        2023-02-28T23:59:58+00:00euc1-az3        r5b.8xlarge     Linux/UNIX      0.619600        2023-02-28T23:59:58+00:00euc1-az3        m5n.4xlarge     Red Hat Enterprise Linux        0.476000        2023-02-28T23:59:59+00:00euc1-az2        m5n.4xlarge     Red Hat Enterprise Linux        0.492000        2023-02-28T23:59:59+00:00euc1-az3        m5n.4xlarge     SUSE Linux      0.471000        2023-02-28T23:59:59+00:00euc1-az2        m5n.4xlarge     SUSE Linux      0.487000        2023-02-28T23:59:59+00:00euc1-az3        m5n.4xlarge     Linux/UNIX      0.346000        2023-02-28T23:59:59+00:00euc1-az2        m5n.4xlarge     Linux/UNIX      0.362000        2023-02-28T23:59:59+00:00

When fetching spot instance pricing from AWS, results contain some prices from the previous month so that the price is known at the start of the month. These prices are adjusted in this dataset to be at the exact start of the month UTC:

euw3-az2        g4dn.4xlarge    Linux/UNIX      0.558600        2023-01-01T00:00:00+00:00

For data from 2023-01 and before, this data was fetched more than one month at a time. This should have no negative impact unless, for example, an instance type was retired before the month began (and there should therefore be no price). These older files also only contain default regions. Data from 2023-02 and later contains all regions, including opt-in regions.

Using data

You can process each month individually. If you need the entire data stream at once, you can cat all files to zst together:

cat prices/*/*.tsv.zst | zstd -d
DOI: 10.15468/dl.qr8tea
title: Occurrence Download

description: A dataset containing 62 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Chrysina costata",
 "HasCoordinate is true",
 "Country is Mexico",
 "HasGeospatialIssue is false"
 ]
}

 The dataset includes 62 records from 3 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0010006-260108223611665/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.4231/gktc-8y06
title: Data for Cavity quantum electrodynamics with molecular defects in a photonic crystal cavity

description: &lt;p&gt;This repository contains spectroscopic and lifetime data for a molecular cavity quantum electrodynamics platform using dibenzoterrylene (DBT) molecules in anthracene crystals coupled to silicon nitride photonic crystal cavities.&lt;/p&gt;

&lt;p&gt;The datasets include cavity transmission spectra showing coupling between individual DBT molecules and a photonic crystal cavity, and photoluminescence excitation spectra of DBT molecules in bulk anthracene crystals. Time-resolved measurements of single-molecule lifetimes at different molecule-cavity detunings demonstrate Purcell enhancement. Cavity transmission data of multiple cavity-coupled molecules demonstrate the ability to tune molecule pairs into resonance via laser-induced frequency shifting.&lt;/p&gt;
description: This repository contains data supporting the publication
“Cavity quantum electrodynamics with molecular defects in a photonic crystal cavity.”
DOI: 10.25574/28298
title: Chandra X-ray Observatory ObsId 28298

description: Revealing the Nature of Velocity-Offset Broad Line Emission in AGN with Chandra
DOI: 10.15468/dl.tdb4s8
title: Occurrence Download

description: A dataset containing 259 species occurrences available in GBIF matching the query:
{"type":"and","predicates":[{"type":"equals","key":"GADM_LEVEL_2_GID","value":"USA.43.5_1","matchCase":false},{"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 259 records from 2 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0010008-260108223611665/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.zamvvt
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Raimas"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0010009-260108223611665/datasets/export for details.
DOI: 10.25574/28420
title: Chandra X-ray Observatory ObsId 28420

description: AO-25 Monitor the HRC-I PSF and optical axis - December
DOI: 10.25574/28421
title: Chandra X-ray Observatory ObsId 28421

description: AO-25 Monitor the HRC-I PSF and optical axis - December
DOI: 10.25574/28424
title: Chandra X-ray Observatory ObsId 28424

description: AO-25 Monitor the HRC-I PSF and optical axis - December
DOI: 10.25574/28537
title: Chandra X-ray Observatory ObsId 28537

description: PHANGS-Chandra: A Legacy Survey for Detailing the First Billion Years of X-ray Evolution in Galaxies
DOI: 10.25574/28674
title: Chandra X-ray Observatory ObsId 28674

description: A pilot study on the onset of AGN feedback in cool cores hosting young central radio galaxies
DOI: 10.25574/28738
title: Chandra X-ray Observatory ObsId 28738

description: Tracing Binary Star Metamorphosis: Chandra+JWST Imaging of Bipolar Planetary Nebulae
DOI: 10.17632/hx8cydx2b3.2
title: Methylsurfonylmethane use in dermatology: a systematic review

description: Supplementary Materials for "Methylsurfonylmethane use in dermatology: a systematic review " by Abdul-Rahman et al.
DOI: 10.25574/29886
title: Chandra X-ray Observatory ObsId 29886

description: INSIGHTS INTO HIGH-REDSHIFT X-RAY EMISSION FROM NEARBY EXTREMELY METAL-POOR GALAXIES (XMPS)
DOI: 10.17632/wwn2x6ttgk
title: DATA of Constructionist Microworld for Higher Technical Education: Evaluating the Effectiveness of the Descriptive Geometry Assistant on Student Performance

description: Descriptive Geometry (DG) provides methods for solving problems of three-dimensional space through their representation on a two-dimensional drawing plane. Mastery of DG requires the development of spatial skills, an objective that has repeatedly proven difficult to achieve through traditional paper-and-pencil instruction. A paradigm change in DG teaching is therefore needed, one that may be facilitated through the use of virtual environments that provide highly interactive visual learning experiences. The present study aimed to analyze the influence of a constructionist microworld, the Descriptive Geometry Assistant (DGA), on DG learning. Two complementary analyses were conducted. First, performance was compared among first-year engineering students at the University of León (Spain) who completed a paper-based exercise, with total scores evaluated across experimental and control (DGA vs. paper). Results showed significantly higher performance for the experimental group. Second, within DGA, four parameterized exercises (two point-based, two line-based) were analyzed among students from Spain and Portugal, considering country, sex, and exercise type. Results indicated systematic performance differences, with higher scores in Spain than Portugal and for men compared to women, particularly in point-construction tasks.
DOI: 10.17632/wwn2x6ttgk.1
title: DATA of Constructionist Microworld for Higher Technical Education: Evaluating the Effectiveness of the Descriptive Geometry Assistant on Student Performance

description: Descriptive Geometry (DG) provides methods for solving problems of three-dimensional space through their representation on a two-dimensional drawing plane. Mastery of DG requires the development of spatial skills, an objective that has repeatedly proven difficult to achieve through traditional paper-and-pencil instruction. A paradigm change in DG teaching is therefore needed, one that may be facilitated through the use of virtual environments that provide highly interactive visual learning experiences. The present study aimed to analyze the influence of a constructionist microworld, the Descriptive Geometry Assistant (DGA), on DG learning. Two complementary analyses were conducted. First, performance was compared among first-year engineering students at the University of León (Spain) who completed a paper-based exercise, with total scores evaluated across experimental and control (DGA vs. paper). Results showed significantly higher performance for the experimental group. Second, within DGA, four parameterized exercises (two point-based, two line-based) were analyzed among students from Spain and Portugal, considering country, sex, and exercise type. Results indicated systematic performance differences, with higher scores in Spain than Portugal and for men compared to women, particularly in point-construction tasks.
DOI: 10.17632/y68vshtnd9
title: VIOLENCIA LABORAL Y FACTORES ASOCIADOS EN ATENCION PRIMARIA

description: Aplicación de cuestionario workplace violence in the health sector, a trabajadores de atención primaria de urgencias.
DOI: 10.15468/dl.u4htb6
title: Occurrence Download

description: A dataset listing the 459 species recorded in GBIF matching the query:
{
 "and" : [
 "BasisOfRecord is Specimen",
 "Geometry POLYGON((-122.3778 47.70948,-122.43204 47.71234,-122.4389 47.64325,-122.43204 47.55018,-122.40407 47.43141,-122.35268 47.42342,-122.24248 47.42114,-122.2185 47.45825,-122.24191 47.49708,-122.24191 47.53876,-122.23506 47.56445,-122.26132 47.56788,-122.26132 47.62383,-122.23391 47.67922,-122.27331 47.71405,-122.3778 47.70948))",
 "TaxonKey is Ascomycota"
 ]
}

 The dataset's 459 records were derived from 38 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0009999-260108223611665/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.k6ebup
title: Occurrence Download

description: A dataset containing 3396 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Geometry POLYGON((13.18793 41.23996,13.71955 41.22148,13.73625 41.49927,13.20225 41.51785,13.18793 41.23996))",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present",
 "TaxonKey is Plantae",
 "Year is greater than or equal to 1990"
 ]
}

 The dataset includes 3396 records from 18 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0010011-260108223611665/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.17632/y68vshtnd9.1
title: VIOLENCIA LABORAL Y FACTORES ASOCIADOS EN ATENCION PRIMARIA

description: Aplicación de cuestionario workplace violence in the health sector, a trabajadores de atención primaria de urgencias.
DOI: 10.17632/523krkxb9s
title: How Small Is Too Small to See: Defining the Visual Detection Threshold for Basal Cell Carcinomas

description: Supplement 1. Proportion of BCCs among all lesions stratified by lesion diameter and study year
Supplement 2. Figure 1. Histograms of BCCs largest diameters by subtype (infiltrative, nodular, superficial) and study year (2013, 2023, and cumulative)
DOI: 10.17632/523krkxb9s.1
title: How Small Is Too Small to See: Defining the Visual Detection Threshold for Basal Cell Carcinomas

description: Supplement 1. Proportion of BCCs among all lesions stratified by lesion diameter and study year
Supplement 2. Figure 1. Histograms of BCCs largest diameters by subtype (infiltrative, nodular, superficial) and study year (2013, 2023, and cumulative)
DOI: 10.15468/dl.4ytt8h
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Barbus barbus",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "Year is greater than or equal to 1830",
 "Year is less than or equal to 1834"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0010012-260108223611665/datasets/export for details.
DOI: 10.17632/3fcrbfdrp5
title: The effects of expansionary fiscal policy on macroeconomic development: A study on tax competition in an emerging market.

description: This dataset was assembled to examine the macroeconomic effects of expansionary fiscal policy implemented through tax incentives under the state value-added tax on the circulation of goods and services (ICMS) in Santa Catarina, Brazil. The underlying research hypothesis is that tax benefits granted by subnational governments, as part of a strategy of fiscal competition, are capable of stimulating macroeconomic development, particularly economic activity and employment.
The data consists of monthly macroeconomic time series spanning the period from January 1997 to December 2020. The variables capture key dimensions of the state economy, including the real exchange rate, real interest rate, electricity consumption (used as a proxy for economic activity), exports, imports, formal employment, ICMS revenue, and inflation. These series were collected from official Brazilian institutions and state agencies, ensuring consistency, reliability, and comparability over time.
The dataset supports the estimation of a vector autoregression (VAR) model designed to trace the dynamic responses of macroeconomic variables to shocks in ICMS revenue, which reflect changes in both economic activity and fiscal policy, including the granting of tax incentives. The empirical results reported in the associated article indicate that ICMS shocks generate short-term effects on the exchange rate and imports but produce limited or statistically insignificant impacts on economic activity, employment, inflation, and state tax revenue over time. These findings challenge traditional Keynesian expectations of broad-based stimulus effects and are more consistent with neoclassical and public-choice interpretations of tax incentives as potentially inefficient and weakly connected to employment generation.
All series were seasonally adjusted, deflated when appropriate, and transformed into logarithmic or percentage variations to ensure stationarity and suitability for time-series econometric analysis. The repository includes the original dataset used in the estimations, as well as a PDF log documenting the Stata commands and outputs employed to estimate the VAR model. Together, these materials allow users to understand how the data were gathered, processed, and analyzed, and to replicate or extend the empirical analysis in future research on fiscal policy, tax competition, and regional economic development.
DOI: 10.17632/3fcrbfdrp5.2
title: The effects of expansionary fiscal policy on macroeconomic development: A study on tax competition in an emerging market.

description: This dataset was assembled to examine the macroeconomic effects of expansionary fiscal policy implemented through tax incentives under the state value-added tax on the circulation of goods and services (ICMS) in Santa Catarina, Brazil. The underlying research hypothesis is that tax benefits granted by subnational governments, as part of a strategy of fiscal competition, are capable of stimulating macroeconomic development, particularly economic activity and employment.
The data consists of monthly macroeconomic time series spanning the period from January 1997 to December 2020. The variables capture key dimensions of the state economy, including the real exchange rate, real interest rate, electricity consumption (used as a proxy for economic activity), exports, imports, formal employment, ICMS revenue, and inflation. These series were collected from official Brazilian institutions and state agencies, ensuring consistency, reliability, and comparability over time.
The dataset supports the estimation of a vector autoregression (VAR) model designed to trace the dynamic responses of macroeconomic variables to shocks in ICMS revenue, which reflect changes in both economic activity and fiscal policy, including the granting of tax incentives. The empirical results reported in the associated article indicate that ICMS shocks generate short-term effects on the exchange rate and imports but produce limited or statistically insignificant impacts on economic activity, employment, inflation, and state tax revenue over time. These findings challenge traditional Keynesian expectations of broad-based stimulus effects and are more consistent with neoclassical and public-choice interpretations of tax incentives as potentially inefficient and weakly connected to employment generation.
All series were seasonally adjusted, deflated when appropriate, and transformed into logarithmic or percentage variations to ensure stationarity and suitability for time-series econometric analysis. The repository includes the original dataset used in the estimations, as well as a PDF log documenting the Stata commands and outputs employed to estimate the VAR model. Together, these materials allow users to understand how the data were gathered, processed, and analyzed, and to replicate or extend the empirical analysis in future research on fiscal policy, tax competition, and regional economic development.
DOI: 10.17632/ksnjsbbjpp
title: Data: Exploring light and object tolerance of native Mediterranean house geckos (Hemidactylus turcicus) in a semi-urbanized habitat
DOI: 10.17632/ksnjsbbjpp.1
title: Data: Exploring light and object tolerance of native Mediterranean house geckos (Hemidactylus turcicus) in a semi-urbanized habitat
DOI: 10.17632/6zyb63gtk2
title: SocialCE_surveys

description: Data set Social impacts of circular economy Survey
DOI: 10.17632/6zyb63gtk2.2
title: SocialCE_surveys

description: Data set Social impacts of circular economy Survey
DOI: 10.15468/dl.ndxq9m
title: Occurrence Download

description: A dataset containing 203 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Geometry POLYGON((-72.03504 -30.50792,-69.69086 -30.32997,-67.14493 -23.82382,-68.02845 -23.35511,-69.24723 -23.2378,-71.20675 -23.25446,-71.12586 -26.61482,-72.03504 -30.50792))",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present",
 "TaxonKey is Cordia decandra",
 "Year 2000-2026"
 ]
}

 The dataset includes 203 records from 7 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0010013-260108223611665/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.5281/zenodo.18249775
title: Source Data for: Interpretable Megalibrary Guiding CO2 Electroreduction Catalysts Discovery
DOI: 10.15468/dl.uxmpya
title: Occurrence Download

description: A dataset containing 210 species occurrences available in GBIF matching the query:
{"type":"and","predicates":[{"type":"equals","key":"GADM_LEVEL_2_GID","value":"USA.43.6_1","matchCase":false},{"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 210 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0010014-260108223611665/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.5281/zenodo.18249757
title: Boehmeria cylindrica (L.) Sw. 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 16:43
DOI: 10.5281/zenodo.18249758
title: Boehmeria cylindrica (L.) Sw. 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 16:43
DOI: 10.17632/hdh8bxhfmd
title: Dataset for: "Cylindrical shell of sphere packing from fluidized beds"

description: This data set contains the validation case input files and setup for a CFD-DEM (Computational Fluid Dynamics - Discrete Element Method) coupling simulation as described in the article "Cylindrical shell of sphere packing from fluidized beds". The case was run on Ubuntu 18.04 using LIGGGHTS for the particle dynamics and OpenFOAM 5.x for the fluid dynamics.
DOI: 10.17632/hdh8bxhfmd.1
title: Dataset for: "Cylindrical shell of sphere packing from fluidized beds"

description: This data set contains the validation case input files and setup for a CFD-DEM (Computational Fluid Dynamics - Discrete Element Method) coupling simulation as described in the article "Cylindrical shell of sphere packing from fluidized beds". The case was run on Ubuntu 18.04 using LIGGGHTS for the particle dynamics and OpenFOAM 5.x for the fluid dynamics.