cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.3535/ptz-a4m-nn4
title: Agrostis tenuis Sibth.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.13140/rg.2.2.29896.06402
title: 19 INDIAN DIVISION ORBAT-1944-45
DOI: 10.3535/1mt-9df-rnx
title: Lipandra polysperma (L.) S. Fuentes, Uotila & Borsch

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/8gt-18d-w0b
title: Lolium rigidum Gaudin

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/rja-2gl-e1t
title: Alyssum huetii Boiss.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/gqp-jtc-2ra
title: Agrostis stolonifera L.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/gws-86g-5s3
title: Gutenbergia cordifolia var. cordifolia Benth. ex Oliv.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/t02-4lg-w7r
title: Trematolobelia kauaiensis (Rock) Skottsb.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/5dj-nv8-10e
title: Arthraxon lancifolius (Trin.) Hochst.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/82m-q9v-skk
title: Calamintha ascendens Jord.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/grm-q1a-j6a
title: Nassella argentinensis (Speg.) Peñail.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/63w-xjl-nrl
title: Colpodium variegatum (Boiss.) Griseb.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/glb-3yz-de7
title: Pauridiantha paucinervis subsp. holstii (K. Schum.) Verdc.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/pvb-wlq-jw5
title: Sporobolus molleri Hack.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.13140/rg.2.2.21271.52646
title: data-processed Star-MIDAS
DOI: 10.3535/94n-3v3-rma
title: Hybanthus melchiorianus Schulze-Menz

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/9rk-b71-akr
title: Festuca ovina L.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/fwl-rkp-frc
title: Stipa regeliana Hack.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.13140/rg.2.2.17916.08329
title: MIDAS
DOI: 10.3535/5nw-ybk-gj6
title: Stylosanthes montevidensis var. intermedia Vogel

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/j0d-aat-qee
title: Ipomoea bahiensis Willd. ex Roem. & Schult.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/j9c-4ft-jff
title: Dendrocalamus asper (Schult. & Schult. f.) Backer ex K. Heyne

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/35m-rw4-1gj
title: Sideritis germanicopolitana subsp. germanicopolitana Bornm.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/5l0-f0s-3fn
title: Lolium rigidum Gaudin

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/q53-vpm-2a2
title: Aegilops cylindrica Host

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.48567/mz94-6474
title: Vito Automatic Weather Station, 2007 Reader format three-hour observational data.
DOI: 10.48567/ymxw-2r79
title: Marble Point Automatic Weather Station, 2008 Reader format three-hour observational data.
DOI: 10.15468/dl.rhn2z2
title: Occurrence Download

description: A dataset containing 740 species occurrences available in GBIF matching the query:
{
 "and" : [
 "GadmGid is USA.40_1",
 "OccurrenceStatus is Present",
 "TaxonKey is Euphagus carolinus (Statius Muller, 1776)",
 "Year 2015-2025"
 ]
}

 The dataset includes 740 records from 2 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0052113-250525065834625/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25345/c5tm72d3g
title: MassIVE MSV000098239 - Proteomic mapping of MYHCA cleavage sites by MMP-2
title: Myosin S1(S1) fragments were incubated with full-length MMP-2, the catalytic domain of MMP-2, or APMA activated MMP-2 under similar conditions. Samples were collected at 5 min, 30 min, 1 h, 4 h, and 8 h time intervals (Supplementary file 6).
DOI: 10.15468/dl.2t5g6k
title: Occurrence Download

description: A dataset containing 681 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Urochloa meziana (Hitchc.) Morrone & Zuloaga"
 ]
}

 The dataset includes 681 records from 63 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0052117-250525065834625/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.5nmnff
title: Occurrence Download

description: A dataset containing 39 species occurrences available in GBIF matching the query:
{
 "and" : [
 "BasisOfRecord is one of (Specimen, Human Observation)",
 "Country is Chile",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "TaxonKey is Ephedra americana Humb. & Bonpl. ex Willd."
 ]
}

 The dataset includes 39 records from 8 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0052114-250525065834625/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.ps85qg
title: Occurrence Download

description: A dataset containing 304353 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Saussurea alpina (L.) DC., Saxifraga aizoides L., Sibbaldia procumbens L., Silene acaulis (L.) Jacq., Tofieldia pusilla (Michx.) Pers.)",
 "Geometry POLYGON ((-180 45.53015, 180 45.53015, 180 83.62313, -180 83.62313, -180 45.53015))",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "CoordinateUncertaintyInMeters is less than or equal to 50000"
 ]
}

 The dataset includes 304353 records from 251 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0052085-250525065834625/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.p9pa8w
title: Occurrence Download

description: A dataset containing 74 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Pentameris thuarii P.Beauv.",
 "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 ((20.2855 -34.7533,20.509 -34.5676,20.509 -32.9007,17.7723 -32.9007,17.8156 -33.0786,18.3471 -33.7176,18.3748 -33.8287,18.2181 -34.0492,18.3197 -34.3408,18.4452 -34.429,18.5435 -34.4213,18.5872 -34.3667,18.5363 -34.167,18.7345 -34.1508,18.7216 -34.3637,18.7808 -34.4521,19.0289 -34.4206,19.0831 -34.4835,19.2655 -34.5017,19.2032 -34.6157,19.2394 -34.6926,19.375 -34.6963,19.6091 -34.8524,19.8251 -34.8396,19.9798 -34.9064,20.1081 -34.8731,20.1517 -34.7847,20.2855 -34.7533))"
 ]
}

 The dataset includes 74 records from 3 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0052118-250525065834625/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.5281/zenodo.13323003
title: Dataset for the study: Closed-boundary reflections of shallow water waves as an open challenge for physics-informed neural networks

description: This dataset supports a study on using Physics-Informed Neural Networks (PINNs) to solve the 1D-Shallow Water Equations. It focuses on closed boundary reflection test cases, which are crucial for accurately modeling geophysical fluid dynamics in coastal regions, particularly for storm surge and flood modeling. Properly representing reflections is also essential for accurately modeling related phenomena, such as Kelvin waves and amphidromic systems, which influence coastal water levels during such events. The individual sub-datasets in NetCDF format provide the results used for one figure each. The data arrays within the datasets are named with reference to the figures for ease of comparison. Cite as: Demir, K.T.; Logemann, K.; Greenberg, D.S. Closed-Boundary Reflections of Shallow Water Waves as an Open Challenge for Physics-Informed Neural Networks. Mathematics 2024, 12, 3315. https://doi.org/10.3390/math12213315
DOI: 10.5281/zenodo.13323923
title: Dataset for the study: Closed-boundary reflections of shallow water waves as an open challenge for physics-informed neural networks

description: This dataset supports a study on using Physics-Informed Neural Networks (PINNs) to solve the 1D-Shallow Water Equations. It focuses on closed boundary reflection test cases, which are crucial for accurately modeling geophysical fluid dynamics in coastal regions, particularly for storm surge and flood modeling. Properly representing reflections is also essential for accurately modeling related phenomena, such as Kelvin waves and amphidromic systems, which influence coastal water levels during such events. The individual sub-datasets in NetCDF format provide the results used for one figure each. The data arrays within the datasets are named with reference to the figures for ease of comparison. Cite as: Demir, K.T.; Logemann, K.; Greenberg, D.S. Closed-Boundary Reflections of Shallow Water Waves as an Open Challenge for Physics-Informed Neural Networks. Mathematics 2024, 12, 3315. https://doi.org/10.3390/math12213315
DOI: 10.15468/dl.ns3m2x
title: Occurrence Download

description: A dataset containing 4458 species occurrences available in GBIF matching the query:
{
 "and" : [
 "GadmGid is USA.40_1",
 "OccurrenceStatus is Present",
 "TaxonKey is Hylocichla mustelina (Gmelin, 1789)",
 "Year 2015-2025"
 ]
}

 The dataset includes 4458 records from 3 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0052115-250525065834625/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.k4h4sa
title: Occurrence Download

description: A dataset listing the 735 species recorded in GBIF matching the query:
{
 "Geometry" : [
 "POLYGON((-71.47947 -33.06009,-71.40017 -33.06009,-71.40017 -33.03581,-71.47947 -33.03581,-71.47947 -33.06009))"
 ]
}

 The dataset's 735 records were derived from 31 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0052095-250525065834625/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.fydzm6
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Enneacampus kaupi (Bleeker, 1863)",
 "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 ((58.3101 -20.2751,58.2432 -19.5708,57.8054 -19.3157,57.2737 -19.5421,56.8082 -20.4638,57.1232 -20.9316,57.7947 -20.9681,58.1423 -20.734,58.3101 -20.2751))"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0052119-250525065834625/datasets/export for details.
DOI: 10.15468/dl.uksnfg
title: Occurrence Download

description: A dataset containing 10035 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is Argentina",
 "Geometry POLYGON((-69.01059 -32.70414,-68.35107 -32.70414,-68.35107 -32.27543,-69.01059 -32.27543,-69.01059 -32.70414))",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present",
 "TaxonKey is Aves"
 ]
}

 The dataset includes 10035 records from 4 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0052121-250525065834625/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.5sfdd9
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Pentameris thuarii P.Beauv.",
 "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 ((35.628 -23.023,35.6007 -22.9702,35.6007 -23.165,35.628 -23.023))"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0052122-250525065834625/datasets/export for details.
DOI: 10.15468/dl.g4rvaa
title: Occurrence Download

description: A dataset listing the 272 species recorded in GBIF matching the query:
{
 "and" : [
 "Geometry POLYGON((-75.813 45.44228,-75.80029 45.44307,-75.80204 45.45273,-75.81396 45.45142,-75.813 45.44228))",
 "TaxonKey is Plantae"
 ]
}

 The dataset's 272 records were derived from 5 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0052098-250525065834625/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.zwqmkq
title: Occurrence Download

description: A dataset containing 10882 species occurrences available in GBIF matching the query:
{
 "and" : [
 "OccurrenceStatus is Present",
 "TaxonKey is Paspalum notatum Flüggé"
 ]
}

 The dataset includes 10882 records from 482 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0052120-250525065834625/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.5066/p1hy5tum
title: Performance maps, weights, and associated data sets for Version 2.0 of the OpenET evapotranspiration models for the conterminous U.S.

description: This data release provides maps of estimated performance metrics for the remotely sensed evapotranspiration (ET) models within the OpenET ensemble, at the scale of the conterminous U.S. (CONUS). It also provides relative weight maps for each of the ensemble models that can be used to produce performance-weighted ensemble estimates. These maps are provided at a 4 kilometer spatial resolution. This data set was produced using performance mapping and weighting methods described in the associated journal article. This data release also includes associated data sets used in the production of these maps as well as data underlying the figures in the associated paper.
DOI: 10.15468/dl.c47h2f
title: Occurrence Download

description: A dataset containing 310 species occurrences available in GBIF matching the query:
{
 "and" : [
 "HasGeospatialIssue is false",
 "HasCoordinate is true",
 "OccurrenceStatus is Present",
 "BasisOfRecord is Specimen",
 "SpeciesKey is Anolis barbouri (Schmidt, 1919)"
 ]
}

 The dataset includes 310 records from 7 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0052123-250525065834625/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.yt7hep
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Enneacampus kaupi (Bleeker, 1863)",
 "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 ((63.2761 -20.2678,63.6834 -20.2184,63.9886 -19.8334,63.9308 -19.4311,63.5893 -19.1874,63.1146 -19.2368,62.8095 -19.6209,62.8573 -19.9632,63.2761 -20.2678))"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0052124-250525065834625/datasets/export for details.
DOI: 10.15468/dl.h3cqar
title: Occurrence Download

description: A dataset containing 419 species occurrences available in GBIF matching the query:
{
 "and" : [
 "BasisOfRecord is one of (Human Observation, Specimen)",
 "Country is Chile",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "TaxonKey is Ephedra chilensis C.Presl"
 ]
}

 The dataset includes 419 records from 29 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0052127-250525065834625/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.xwhpa2
title: Occurrence Download

description: A dataset containing 173687 species occurrences available in GBIF matching the query:
{
 "and" : [
 "HasGeospatialIssue is false",
 "HasCoordinate is true",
 "OccurrenceStatus is Present",
 {
 "not" : {
 "BasisOfRecord" : [
 "is one of (Fossil, Material sample)"
 ]
 }
 },
 "TaxonKey is Andropadus importunus (Vieillot, 1818)",
 "Continent is one of (Africa)",
 "Year is greater than or equal to 1900"
 ]
}

 The dataset includes 173687 records from 54 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0052099-250525065834625/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.y8psqk
title: Occurrence Download

description: A dataset containing 399468 species occurrences available in GBIF matching the query:
{
 "and" : [
 "DatasetKey is iNaturalist Research-grade Observations",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "Country is one of (Canada, Mexico, United States of America)",
 "EventDate is greater than or equal to 2025-05-23",
 "EventDate is less than or equal to 2025-06-22",
 {
 "not" : {
 "Issue" : [
 "is one of (Basis of record invalid, Coordinate reprojection failed, Coordinate reprojection suspicious, Coordinate precision invalid, Coordinate uncertainty meters invalid, Country mismatch, Country invalid, Geodetic datum invalid, Presumed swapped coordinate, Presumed negated longitude, Presumed negated latitude, Country coordinate mismatch)"
 ]
 }
 }
 ]
}

 The dataset includes 399468 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0052106-250525065834625/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.cj9ff8
title: Occurrence Download

description: A dataset containing 335 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Cyperus semiochraceus Boeckeler"
 ]
}

 The dataset includes 335 records from 54 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0052125-250525065834625/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.p7ysbt
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Trichomanes rigidum Sw.",
 "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 ((27.1332 -20.158,25.5395 -23.2724,25.5395 -24.0715,30.5701 -24.0715,30.5701 -20.3186,29.6496 -19.6123,28.947 -19.4003,28.1821 -19.4609,27.6072 -19.7214,27.1332 -20.158))"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0052126-250525065834625/datasets/export for details.
DOI: 10.15468/dl.wpj73a
title: Occurrence Download

description: A dataset containing 109 species occurrences available in GBIF matching the query:
{
 "and" : [
 "BasisOfRecord is Specimen",
 "Geometry POLYGON((117.04624 30.72183,155.95376 30.72183,155.95376 46.27817,117.04624 46.27817,117.04624 30.72183))",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present",
 "TaxonKey is Lymantria dispar japonica Motschulsky, 1860"
 ]
}

 The dataset includes 109 records from 18 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0052128-250525065834625/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.bxfwta
title: Occurrence Download

description: A dataset containing 75 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Bastardiastrum gracile (Hochr.) D.M.Bates"
 ]
}

 The dataset includes 75 records from 18 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0052129-250525065834625/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.5rzm6z
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Enneacampus kaupi (Bleeker, 1863)",
 "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 ((59.3519 -17.3042,59.9568 -17.101,60.2121 -16.521,59.9717 -15.9401,59.2192 -15.9401,58.9855 -16.8095,59.1248 -17.1702,59.3519 -17.3042))"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0052130-250525065834625/datasets/export for details.
DOI: 10.18739/a2qz22k2h
title: Seasonal soil active layer measurements from a Circumpolar Active Layer monitoring (CALM) grid, (U32B) Sagwon Hills MAT, Alaska, 1995-2024

description: This site is registered with the Circumpolar Active Layer Monitoring (CALM) program. It is one among a network of sites that represent a coordinated effort to standardize the collection and access to thaw measurements in representative undisturbed permafrost landscapes. This dataset contains long-term spatial thaw depth observations using mechanical probing on dates indicated by file column headers. To ensure relative consistency within the record, end-of-season measurement dates are within the same Julian calendar week during the height of the thaw season (mid-August to mid-September). It is important to note that the date of maximum annual thaw, interpreted as the active layer thickness, can vary from year to year and between sites.