cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.5281/zenodo.17693506
title: Enhanced Calibration Accuracy for Non-Overlapping Multi-LiDAR Systems Using GPIS-based Surface Modeling

description: This dataset contains synchronized point cloud data from two LiDAR sensors (front and back) generated using Prescan simulation platform. It is designed for multi-LiDAR extrinsic calibration research, specifically for methods based on Gaussian Process Implicit Surface (GPIS) matching.

**Dataset Contents:**- **Point Cloud Data**: Approximately 658 synchronized frames of PCD (Point Cloud Data) format from two LiDAR sensors  - Front LiDAR (`lidar_front/`): ~658 PCD files, ~691 MB total  - Back LiDAR (`lidar_back/`): ~658 PCD files, ~680 MB total- **Configuration Files**:   - Ground segmentation parameters (`linefit_ground_removal_config.yml`)  - 3D-to-2D conversion parameters (`points3d_to_laserscan_config.yml`)- **Pose Information**: Relative pose files for both LiDAR sensors in YAML format- **Documentation**: Complete usage instructions and technical analysis

**Key Features:**- Synchronized multi-LiDAR point cloud sequences- Ground-truth relative poses for validation- Complete configuration files for preprocessing- Compatible with GPIS-based calibration methods- Generated from Prescan simulation for reproducible research

**Use Cases:**- Multi-LiDAR extrinsic calibration algorithm development- GPIS matching method evaluation- Point cloud registration research- Sensor fusion algorithm testing- Benchmark dataset for calibration methods

**Data Format:**- Point clouds: PCD format (compatible with PCL, MATLAB, ROS)- Configuration: YAML format- Poses: YAML format with 6-DOF (x, y, z, roll, pitch, yaw)

**Technical Details:**- Total frames: ~658 synchronized pairs- Point cloud size: ~777 KB per file- Coordinate system: Vehicle coordinate frame- Synchronization: Time-synchronized between front and back LiDARs- File naming: 6-digit zero-padded format (000001.pcd, 000002.pcd, ...)

**Compatibility:**This dataset is designed to work with the GPIS-based extrinsic calibration pipeline implemented in MATLAB. The main processing script is:```GPisMapMatching/scripts/script_estimate_extrinsic_gpisMatching_full.m```

**Processing Pipeline:**1. Ground segmentation and z/roll/pitch estimation2. 3D point cloud to 2D laser scan conversion3. GPIS matching for 2D extrinsic estimation4. Initial pose estimation using delta motion5. Final pose estimation using scan-to-map matching
DOI: 10.15468/dl.2r66jz
title: Occurrence Download

description: A dataset containing 867 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is Mexico",
 "TaxonKey is Bromeliohyla dendroscarta"
 ]
}

 The dataset includes 867 records from 18 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0004832-251120083545085/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.5281/zenodo.17694042
title: Dataset UX Analysis in Smart Home Application Based on User Experience Questionnaire Plus and the PACMAD Method
DOI: 10.5281/zenodo.17694043
title: Dataset UX Analysis in Smart Home Application Based on User Experience Questionnaire Plus and the PACMAD Method
DOI: 10.15468/dl.g9bbwa
title: Occurrence Download

description: A dataset containing 101560 species occurrences available in GBIF matching the query:
{
 "and" : [
 "OccurrenceStatus is Present",
 "TaxonKey is Accipiter cooperii"
 ]
}

 The dataset includes 101560 records from 204 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0004816-251120083545085/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.e5axwp
title: Occurrence Download

description: A dataset containing 10747 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Akebia quinata"
 ]
}

 The dataset includes 10747 records from 359 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0004833-251120083545085/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.4z3hmk
title: Occurrence Download

description: A dataset containing 14154253 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is China",
 "OccurrenceStatus is Present"
 ]
}

 The dataset includes 14154253 records from 7415 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0004815-251120083545085/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.qvyg4h
title: Occurrence Download

description: A dataset listing the 1117 species recorded in GBIF matching the query:
{
 "and" : [
 "Geometry POLYGON((-56.19674 -20.00224,-56.05856 -20.02799,-55.7076 -19.88513,-55.56439 -19.53255,-55.63553 -19.29244,-55.93608 -19.08618,-56.24251 -19.09773,-56.47369 -19.30787,-56.53754 -19.56835,-56.51475 -19.70723,-56.35012 -19.93127,-56.19674 -20.00224))",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "Year 2005-2024"
 ]
}

 The dataset's 1117 records were derived from 36 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0009711-250515123054153/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25345/c58g8fw3b
title: MassIVE MSV000097933 - GNPS Purified Recombinant His-HvGKEc Band in Gel
title: Recombinant H. volcanii Glycerol Kinase expressed in E.coli BL21 DE3 (HvGKEc) using the plasmid pET15b+glpK in LB Amp. The protein was initially eluted in 50mM HEPES buffer, 2M NaCl. The sample was resuspended in 2X laemmli sample buffer and run in the SDS gel using 1X SDS buffer. The sampled was fixed, the gel was stained with bio-safe commassie overnight, and the band was analyzed.
DOI: 10.15468/dl.x7z8fe
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 (Alouatta palliata (Gray, 1849))",
 "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 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0015931-250525065834625/datasets/export for details.
DOI: 10.26131/irsa626
title: Euclid Q1 SPE Models Catalog - Lines

description: Euclid Quick Release 1 (Q1) consists of approximately 30 TB of imaging, spectroscopy, and catalogs covering four non-contiguous fields: Euclid Deep Field North (22.9 sq deg), Euclid Deep Field Fornax (12.1 sq deg), Euclid Deep Field South (28.1 sq deg), and LDN1641. Q1 data products include Level 1 raw VIS and NISP frames; Level 2 Calibrated VIS and NISP imaging data; Level 2 calibrated 2-D and 1-D spectra; Level 2 multiwavelength space- and ground-based mosaics; Level 2 catalogs of photometry, photometric redshifts, and spectroscopic measurements; and Level 3 visibility masks.

This dataset or service is made available by the Infrared Science Archive (IRSA) at IPAC, which is operated by the California Institute of Technology under contract with the National Aeronautics and Space Administration.
DOI: 10.15468/dl.cj4nd2
title: Occurrence Download

description: A dataset containing 36448 species occurrences available in GBIF matching the query:
{
 "and" : [
 "HasCoordinate is true",
 "TaxonKey is Streptomyces Waksman & Henrici, 1943"
 ]
}

 The dataset includes 36448 records from 425 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0015929-250525065834625/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.rkwphg
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 (Alouatta palliata (Gray, 1849))",
 "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 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0015932-250525065834625/datasets/export for details.
DOI: 10.5281/zenodo.15578983
title: THE IMPACT MECHANISM OF INNOVATIVE CREDIT STRUCTURE AND DIGITAL TRANSFORMATION OF THE BANKING SYSTEM
DOI: 10.5281/zenodo.15578984
title: THE IMPACT MECHANISM OF INNOVATIVE CREDIT STRUCTURE AND DIGITAL TRANSFORMATION OF THE BANKING SYSTEM
DOI: 10.5281/zenodo.16887735
title: Psychosocial Predictors of Mobbing and Burnout in Para- athletes: Insights for Mental Health
DOI: 10.5281/zenodo.16887736
title: Psychosocial Predictors of Mobbing and Burnout in Para- athletes: Insights for Mental Health
DOI: 10.15468/dl.4rubhh
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Polyplectron bicalcaratum",
 "Country is Chinese Taipei",
 "HasCoordinate is true"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0049399-250811113504898/datasets/export for details.
DOI: 10.15468/dl.3aahh7
title: Occurrence Download

description: A dataset containing 218 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Stachylidium bicolor"
 ]
}

 The dataset includes 218 records from 40 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0005139-260120142942310/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.f5yza3
title: Occurrence Download

description: A dataset containing 108 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Croton serratus"
 ]
}

 The dataset includes 108 records from 35 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0005137-260120142942310/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.8tu2z4
title: Occurrence Download

description: A dataset containing 1965 species occurrences available in GBIF matching the query:
{
 "and" : [
 "OccurrenceStatus is Present",
 "TaxonKey is Spondias tuberosa"
 ]
}

 The dataset includes 1965 records from 138 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0005141-260120142942310/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.vzaajj
title: Occurrence Download

description: A dataset containing 46530 species occurrences available in GBIF matching the query:
{"type":"and","predicates":[{"type":"equals","key":"GADM_LEVEL_1_GID","value":"CAN.2_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 46530 records from 4 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0005138-260120142942310/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.hhc7ex
title: Occurrence Download

description: A dataset containing 14 species occurrences available in GBIF matching the query:
{
 "and" : [
 "BasisOfRecord is Specimen",
 "Country is Czechia",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present",
 "TaxonKey is Atriplex rosea"
 ]
}

 The dataset includes 14 records from 6 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0005143-260120142942310/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.8f5dvg
title: Occurrence Download

description: A dataset containing 248 species occurrences available in GBIF matching the query:
{
 "and" : [
 "OccurrenceStatus is Present",
 "TaxonKey is Spondias bahiensis"
 ]
}

 The dataset includes 248 records from 21 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0005144-260120142942310/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.q6nmg8
title: Occurrence Download

description: A dataset containing 154 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Geometry POLYGON((-106.87537 -33.14214,-36.12463 -33.14214,-36.12463 -4.85786,-106.87537 -4.85786,-106.87537 -33.14214))",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present",
 "TaxonKey is Hippocamelus antisensis"
 ]
}

 The dataset includes 154 records from 11 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0005145-260120142942310/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.jg6ywd
title: Occurrence Download

description: A dataset containing 22251 species occurrences available in GBIF matching the query:
{
 "and" : [
 "BasisOfRecord is one of (Human Observation, Specimen, Living Specimen, Occurrence evidence)",
 "Geometry POLYGON((-7.20606 49.39750,4.95923 49.39750,4.95923 54.26131,-7.20606 54.26131,-7.20606 49.39750))",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present",
 "TaxonKey is Dicentrarchus labrax"
 ]
}

 The dataset includes 22251 records from 98 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0005146-260120142942310/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.6z4uwh
title: Occurrence Download

description: A dataset containing 12 species occurrences available in GBIF matching the query:
{"type":"and","predicates":[{"type":"within","geometry":"POLYGON ((88.76631999999999 24.474889, 88.689168 24.469312, 88.613935 24.45272, 88.542492 24.425525, 88.476613 24.388403, 88.41792700000001 24.342278, 88.367884 24.288292, 88.32771099999999 24.227785, 88.29839 24.162254, 88.280626 24.093319, 88.274841 24.022682, 88.28115699999999 23.952082, 88.299398 23.883258, 88.3291 23.817898, 88.369516 23.757607, 88.41964400000001 23.703861, 88.478245 23.657975, 88.543881 23.621069, 88.61494399999999 23.594046, 88.68969800000001 23.577563, 88.76631999999999 23.572024, 88.84294199999999 23.577563, 88.91769600000001 23.594046, 88.988759 23.621069, 89.054395 23.657975, 89.112996 23.703861, 89.163124 23.757607, 89.20354 23.817898, 89.233242 23.883258, 89.25148299999999 23.952082, 89.25779900000001 24.022682, 89.252014 24.093319, 89.23425 24.162254, 89.20492900000001 24.227785, 89.164756 24.288292, 89.11471299999999 24.342278, 89.056027 24.388403, 88.990148 24.425525, 88.918705 24.45272, 88.84347200000001 24.469312, 88.76631999999999 24.474889))"},{"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 12 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0005148-260120142942310/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.epnekx
title: Occurrence Download

description: A dataset containing 940 species occurrences available in GBIF matching the query:
{
 "and" : [
 "OccurrenceStatus is Present",
 "TaxonKey is Xiquexique gounellei gounellei"
 ]
}

 The dataset includes 940 records from 71 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0005147-260120142942310/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/zk45ar
title: First record of the family Maxillipiidae (Crustacea: Malacostraca: Amphipoda) from Korea, including a new species and a new record species of the genus Maxillipius

description: This dataset contains the digitized treatments in Plazi based on the original journal article Lee, Jeong-Hyeon, Kim, Kyung-Won, Kim, Young-Hyo (2025): First record of the family Maxillipiidae (Crustacea: Malacostraca: Amphipoda) from Korea, including a new species and a new record species of the genus Maxillipius. Zootaxa 5717 (2): 277-290, DOI: 10.11646/zootaxa.5717.2.6, URL: https://doi.org/10.11646/zootaxa.5717.2.6AbstractThis study aims to discover and document amphipods from Korea, contributing to the clarification of Korean amphipod taxonomy. As part of this effort, a new species and a newly recorded species of the family Maxillipiidae were collected from the southern waters of Korea. The new species, Maxillipius koreanus sp. nov., is similar to M. rectitelson in having a broadly developed maxillipedal palp, a similar morphology of gnathopod 1, and an extremely elongated pereopod 6. However, it can be distinguished from M. rectitelson by differences in the shape of the coxa and propodus of gnathopod 2, the arrangement of setae on the propodus, and the morphology of dorsal projections on pleonites. Additionally, mitochondrial cytochrome c oxidase subunit I (COI) sequences support divergence at the species level. The newly recorded species, M. rectitelson, is previously known from Madagascar, Australia, and China. It can be compared to M. commensalis, but is clearly distinguished by the shape of gnathopod 1 and coxa 2. Both species are fully illustrated and extensively compared with related species. This study represents the first record of both the genus Maxillipius and the family Maxillipiidae in Korea. Additionally, a key to the species of Maxillipiidae is provided.
DOI: 10.5281/zenodo.18342119
title: Měření - Export 22. 1. 2026

description: test
DOI: 10.13139/olcf/3005830
title: Vegetation and Land Unit Datasets over North America (1km x 1km) for E3SM Land Model

description:  Vegetation and land cover maps at 1km x 1km resolution across North America. The vegetation map was generated by the scripts in nalcms2daymet_script directory in the repository at `https://github.com/daliwang/NALCMS2Daymet_ELM`.
DOI: 10.5281/zenodo.18342118
title: Měření - Export 22. 1. 2026

description: test
DOI: 10.5281/zenodo.18342133
title: Měření - Export 22. 1. 2026

description: test
DOI: 10.15468/dl.nvru93
title: Occurrence Download

description: A dataset containing 71 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Lonchophylla inexpectata"
 ]
}

 The dataset includes 71 records from 8 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0005149-260120142942310/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.cyzb8g
title: Occurrence Download

description: A dataset containing 4625 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Hippocamelus bisulcus"
 ]
}

 The dataset includes 4625 records from 28 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0005150-260120142942310/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.dbdjfq
title: Occurrence Download

description: A dataset containing 8939 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is United States of America",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present",
 "TaxonKey is Centrocercus urophasianus",
 "Year 2020-2026"
 ]
}

 The dataset includes 8939 records from 6 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0005152-260120142942310/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.5517/ccpjmg8
title: CCDC 641590: Experimental Crystal Structure Determination

description: Related Article: Jian-Fang Dong, Lian-Zhi Li, Li-Wei Gao, Tao Xu, Da-Qi Wang|2007|Acta Crystallogr.,Sect.E:Struct.Rep.Online|63|m1375|doi:10.1107/S1600536807016261
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/ccdc.csd.cc2jg28c
title: CCDC 2337222: Experimental Crystal Structure Determination

description: Related Article: Tejas Prabakar, Payal Ambastha, Rashmi Yadav, Animesh Samanta, Mahesh Ravva, Parthapratim Munshi, Subhabrata Sen|2025|CSD Communication|||
description: Related Article: Tejas Prabakar, Payal Ambastha, Rashmi Yadav, Animesh Samanta, Mahesh Ravva, Parthapratim Munshi, Subhabrata Sen|2025|Adv.Synth.Catal.|367|e202500353|doi:10.1002/adsc.202500353
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.