cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.30753315
title: Production of chitosan from local strain of <i>Pleurotus ostreatus</i> (Jacq: Fries) Kummer and its application in Congo Red adsorption

description: This study focused on developing a fungal biomaterial to treat water contaminated with anionic Congo Red dye through adsorption. A local strain of <i>Pleurotus ostreatus</i>, an edible basidiomycete mushroom, was isolated from Algeria, and used as the primary source for chitosan extraction. By-products from oyster mushroom cultivation were collected for this study. The extraction process resulted in a chitosan yield of 0.512 ± 0.18 g per 100 g of biomass. The chitosan powder (with 81.97 ± 9.70% degree of deacetylation) converted to membrane was tested to remove dye. The thermogravimetric analysis (TGA) of the chitosan membrane shows that it is characterized by important thermal stability. The kinetics experiments were conducted under moderate agitation, and the following parameters were studied: initial pH (4–12); initial dye concentrations (10–80 mg/L); adsorbent dose (0.02–0.15 g/25 mL) and temperature (25–55 °C). After one day of contact between the Congo Red dye (40 mg/L) and chitosan membrane (0.06 g/25 mL) at pH 4 and at 25 °C, the percentage removal reached 95.6 ± 2.47%, corresponding to an adsorption capacity of 14.55 ± 4.35 mg/g. Adsorption kinetic of Congo Red was studied and modeled using the pseudo first-order, pseudo-second-order and intraparticle diffusion models. The adsorption process was found to follow a pseudo-second-order kinetic model. The Langmuir isotherm is applicable to this adsorption, indicating that adsorption is driven by chemisorption. The study demonstrates that the chitosan derived of chitin extracted from local <i>Pleurotus ostreatus</i> by-products is effective in removing dye from aqueous solutions. Production of chitosan from local strain of Pleurotus ostreatus (Jacq.: Fries) Kummer and its application in Congo Red adsorption Chitosan converted into a membrane can indeed be an effective and promising solution in the treatment of wastewater contaminated with pollutants, particularly dyes. The advantage of this cationic polysaccharide, compared to conventional adsorbents, lies in its conversion into a membranous form, allowing for a combination of adsorption and sedimentation. The use of chitosan membranes thus simplifies the treatment process and reduces the costs and efforts associated with the management of solid residues.
DOI: 10.6084/m9.figshare.30753315.v1
title: Production of chitosan from local strain of <i>Pleurotus ostreatus</i> (Jacq: Fries) Kummer and its application in Congo Red adsorption

description: This study focused on developing a fungal biomaterial to treat water contaminated with anionic Congo Red dye through adsorption. A local strain of <i>Pleurotus ostreatus</i>, an edible basidiomycete mushroom, was isolated from Algeria, and used as the primary source for chitosan extraction. By-products from oyster mushroom cultivation were collected for this study. The extraction process resulted in a chitosan yield of 0.512 ± 0.18 g per 100 g of biomass. The chitosan powder (with 81.97 ± 9.70% degree of deacetylation) converted to membrane was tested to remove dye. The thermogravimetric analysis (TGA) of the chitosan membrane shows that it is characterized by important thermal stability. The kinetics experiments were conducted under moderate agitation, and the following parameters were studied: initial pH (4–12); initial dye concentrations (10–80 mg/L); adsorbent dose (0.02–0.15 g/25 mL) and temperature (25–55 °C). After one day of contact between the Congo Red dye (40 mg/L) and chitosan membrane (0.06 g/25 mL) at pH 4 and at 25 °C, the percentage removal reached 95.6 ± 2.47%, corresponding to an adsorption capacity of 14.55 ± 4.35 mg/g. Adsorption kinetic of Congo Red was studied and modeled using the pseudo first-order, pseudo-second-order and intraparticle diffusion models. The adsorption process was found to follow a pseudo-second-order kinetic model. The Langmuir isotherm is applicable to this adsorption, indicating that adsorption is driven by chemisorption. The study demonstrates that the chitosan derived of chitin extracted from local <i>Pleurotus ostreatus</i> by-products is effective in removing dye from aqueous solutions. Production of chitosan from local strain of Pleurotus ostreatus (Jacq.: Fries) Kummer and its application in Congo Red adsorption Chitosan converted into a membrane can indeed be an effective and promising solution in the treatment of wastewater contaminated with pollutants, particularly dyes. The advantage of this cationic polysaccharide, compared to conventional adsorbents, lies in its conversion into a membranous form, allowing for a combination of adsorption and sedimentation. The use of chitosan membranes thus simplifies the treatment process and reduces the costs and efforts associated with the management of solid residues.
DOI: 10.24400/527896/a01-2023.018
title: SWOT Level-3 KaRIn Low Rate SSH Expert

description: Version 0.3 product derived from the beta pre-validated L2_LR_SSH version 1.0 (summer 2023 reprocessing).
description: Version 1.0 product derived from the validated L2_LR_SSH version 2.0 (or version C).
description: Updated product with the release of version 1.0.2 (also derived from L2_LR_SSH version C).
description: Updated product with the release of version 2.0 (also derived from L2_LR_SSH version C).
description: Updated product with the release of version 2.0 (also derived from L2_LR_SSH version C).
description: Updated product with the release of version 2.0.1 (also derived from L2_LR_SSH version C).
description: Updated product with the release of version 3.0 (reprocessed and forward data sets).
DOI: 10.6084/m9.figshare.30753316
title: Forest canopy height mapping considering the seasonal rhythm of different dominant tree species

description: The accurate estimation of forest canopy height (FCH) is significant for research on carbon storage and climate change. Extrapolating FCH samples at the plot scale to the global or regional level using spatially contiguous remote sensing images is currently a common method for large-scale vegetation attribute mapping. However, the extrapolation process results in a lower FCH estimation accuracy due to signal saturation, a lack of horizontal stand distribution, and incomplete seasonal information expression. Here, a new FCH remote sensing estimation model was created using the seasonal rhythms of dominant tree species (pine, oak, walnut, and other species) in the eastern part of Dali Bai Autonomous Prefecture, Yunnan Province, China. First, a spectral curve model was used to extract seasonal information from the integrated Landsat and Sentinel-2 imagery. Following this, the seasonal rhythm and support vector machine (SVM) were adopted to identify the forest dominant tree species. Integrating active and passive remote sensing features and seasonal rhythm variables, multiple random forest-based FCH estimation models of different forest dominant tree species were constructed to reveal the distribution of FCH. Our results determined a reliable overall classification accuracy of dominant tree species at 0.92, indicating that the classification could be used for subsequent FCH modeling. The validation <i>R</i><sup>2</sup> of the FCH model using active and passive remote sensing variables with the random forest algorithm was only 0.37, while the <i>R</i><sup>2</sup> value increased to 0.57 when the seasonal rhythm information was included. After the FCH model was established for each forest dominant tree species, the validation <i>R</i><sup>2</sup> further increased to 0.70. These results revealed that the seasonal rhythm information and forest tree species composition contribute to reliable FCH distribution mapping. This study provides a robust framework for improving FCH estimation, offering valuable insights for forest management strategies and enhancing carbon storage assessment.
DOI: 10.6084/m9.figshare.30753316.v1
title: Forest canopy height mapping considering the seasonal rhythm of different dominant tree species

description: The accurate estimation of forest canopy height (FCH) is significant for research on carbon storage and climate change. Extrapolating FCH samples at the plot scale to the global or regional level using spatially contiguous remote sensing images is currently a common method for large-scale vegetation attribute mapping. However, the extrapolation process results in a lower FCH estimation accuracy due to signal saturation, a lack of horizontal stand distribution, and incomplete seasonal information expression. Here, a new FCH remote sensing estimation model was created using the seasonal rhythms of dominant tree species (pine, oak, walnut, and other species) in the eastern part of Dali Bai Autonomous Prefecture, Yunnan Province, China. First, a spectral curve model was used to extract seasonal information from the integrated Landsat and Sentinel-2 imagery. Following this, the seasonal rhythm and support vector machine (SVM) were adopted to identify the forest dominant tree species. Integrating active and passive remote sensing features and seasonal rhythm variables, multiple random forest-based FCH estimation models of different forest dominant tree species were constructed to reveal the distribution of FCH. Our results determined a reliable overall classification accuracy of dominant tree species at 0.92, indicating that the classification could be used for subsequent FCH modeling. The validation <i>R</i><sup>2</sup> of the FCH model using active and passive remote sensing variables with the random forest algorithm was only 0.37, while the <i>R</i><sup>2</sup> value increased to 0.57 when the seasonal rhythm information was included. After the FCH model was established for each forest dominant tree species, the validation <i>R</i><sup>2</sup> further increased to 0.70. These results revealed that the seasonal rhythm information and forest tree species composition contribute to reliable FCH distribution mapping. This study provides a robust framework for improving FCH estimation, offering valuable insights for forest management strategies and enhancing carbon storage assessment.
DOI: 10.17026/ar/p6bqkl
title: PAN-00169393 - simple stone gaming piece

description: &lt;p&gt;This find is registered at Portable Antiquities of the Netherlands with number PAN-00169393&lt;/p&gt;
description: Modified: 2025-04-26T11:51:26+02:00
DOI: 10.25318/3310108201-eng
title: Percentage of employees required to be bilingual in English and French, fourth quarter of 2025

description: Percentage of employees required to be bilingual in English and French, by North American Industry Classification System (NAICS), business employment size, type of business, business activity and majority ownership, fourth quarter of 2025.
DOI: 10.15468/dl.7artb8
title: Occurrence Download

description: A dataset containing 83 species occurrences available in GBIF matching the query:
{
 "and" : [
 "BasisOfRecord is Human Observation",
 "CoordinateUncertaintyInMeters 0.0-5000.0",
 "Country is Germany",
 "GadmGid is one of (DEU.7_1, DEU.12_1, DEU.1_1, DEU.11_1)",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "IsInCluster is false",
 "OccurrenceStatus is Present",
 "TaxonKey is Chorthippus apricarius",
 "Year 2015-2025"
 ]
}

 The dataset includes 83 records from 3 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0020926-251120083545085/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.4vucpm
title: Occurrence Download

description: A dataset containing 690 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Tenaxia stricta",
 "HasCoordinate is true"
 ]
}

 The dataset includes 690 records from 15 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0020927-251120083545085/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.17026/ar/jgeign
title: PAN-00170108 - finger ring with soldered square bezel

description: &lt;p&gt;This find is registered at Portable Antiquities of the Netherlands with number PAN-00170108&lt;/p&gt;
description: Modified: 2025-04-30T13:07:50+02:00
DOI: 10.15468/dl.npfyd8
title: Occurrence Download

description: A dataset containing 271135717 species occurrences available in GBIF matching the query:
{
 "BasisOfRecord" : [
 "is Specimen"
 ]
}

 The dataset includes 271135717 records from 8959 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0020905-251120083545085/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.b9zkmh
title: Occurrence Download

description: A dataset containing 316 species occurrences available in GBIF matching the query:
{
 "and" : [
 {
 "and" : [
 "HasGeospatialIssue is false",
 "HasCoordinate is true",
 "OccurrenceStatus is Present",
 {
 "not" : {
 "BasisOfRecord" : [
 "is one of (Fossil, Living Specimen)"
 ]
 }
 }
 ]
 },
 "TaxonKey is Tachiramantis douglasi (Lynch, 1996)"
 ]
}

 The dataset includes 316 records from 9 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0045889-240229165702484/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.nga873
title: Occurrence Download

description: A dataset containing 9 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Cryptocarya resinosa Kosterm."
 ]
}

 The dataset includes 9 records from 2 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0283930-200613084148143/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.txsnjp
title: Occurrence Download

description: A dataset containing 16 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Balsamorhiza sagittata (Pursh) Nutt.",
 "Geometry POLYGON((-111.489257 45.736859,-108.852539 45.026950,-108.588867 42.309815,-111.005859 41.804078,-111.840820 43.834526,-111.489257 45.736859))",
 "HasCoordinate is true",
 "HasGeospatialIssue is false"
 ]
}

 The dataset includes 16 records from 6 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0011423-160910150852091/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.cpbecc
title: Occurrence Download

description: A dataset containing 347 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Manduca sexta Linnaeus, 1763",
 "Country is United States of America",
 "BasisOfRecord is Human Observation"
 ]
}

 The dataset includes 347 records from 2 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0011423-170714134226665/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.egbbmk
title: Occurrence Download

description: A dataset containing 1848 species occurrences available in GBIF matching the query:
{
 "and" : [
 {
 "and" : [
 "HasGeospatialIssue is false",
 "HasCoordinate is true",
 "OccurrenceStatus is Present",
 {
 "not" : {
 "BasisOfRecord" : [
 "is one of (Fossil, Living Specimen)"
 ]
 }
 }
 ]
 },
 "TaxonKey is Perdicula erythrorhyncha (Sykes, 1832)"
 ]
}

 The dataset includes 1848 records from 10 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0053664-240229165702484/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.da7axu
title: Occurrence Download

description: A dataset containing 161 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Ferdinandusa guainiae Spruce ex K.Schum."
 ]
}

 The dataset includes 161 records from 40 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0162670-240321170329656/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.j7dqmz
title: Occurrence Download

description: A dataset containing 39825 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is China",
 "Geometry POLYGON((104 27,111 27,111 33,104 33,104 27))",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present",
 "StateProvince is 重庆",
 "Year 1949-2021"
 ]
}

 The dataset includes 39825 records from 5 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0035122-210914110416597/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.rwcsw8
title: Occurrence Download

description: A dataset containing 9 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Epidendrum uncinatum D.E.Benn. & Christenson"
 ]
}

 The dataset includes 9 records from 2 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0162669-240321170329656/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.sy7z4q
title: Occurrence Download

description: A dataset containing 78 species occurrences available in GBIF matching the query:
{
 "and" : [
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "Year is greater than or equal to 2000",
 "Month is greater than or equal to January",
 "Country is New Zealand",
 "TaxonKey is Squamata"
 ]
}

 The dataset includes 78 records from 2 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0011424-151016162008034/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.d7zkxu
title: Occurrence Download

description: A dataset containing 304 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Spatholobus suberectus Dunn"
 ]
}

 The dataset includes 304 records from 27 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0045890-240229165702484/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.t6zcae
title: Occurrence Download

description: A dataset containing 2436 species occurrences available in GBIF matching the query:
{
 "and" : [
 "OccurrenceStatus is Present",
 "TaxonKey is Cyphoma gibbosum (Linnaeus, 1758)"
 ]
}

 The dataset includes 2436 records from 82 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0303405-200613084148143/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.h7q7pu
title: Occurrence Download

description: A dataset containing 1 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Cryptocarya sumatrana Kosterm."
 ]
}

 The dataset includes 1 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0283932-200613084148143/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.tc7kj3
title: Occurrence Download

description: A dataset containing 8 species occurrences available in GBIF matching the query:
{
 "and" : [
 {
 "and" : [
 "HasGeospatialIssue is false",
 "HasCoordinate is true",
 "OccurrenceStatus is Present",
 {
 "not" : {
 "BasisOfRecord" : [
 "is one of (Fossil, Living Specimen)"
 ]
 }
 }
 ]
 },
 "TaxonKey is Dendropsophus soaresi (Caramaschi & Jim, 1983)"
 ]
}

 The dataset includes 8 records from 3 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0045899-240229165702484/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.wxy7ex
title: Occurrence Download

description: A dataset containing 30 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Chaetopleura hennahi (Gray, 1828)",
 "HasGeospatialIssue is false",
 "HasCoordinate is true",
 {
 "not" : {
 "BasisOfRecord" : [
 "is Fossil"
 ]
 }
 },
 {
 "or" : [
 {
 "not" : {
 "EstablishmentMeans" : [
 "is MANAGED"
 ]
 }
 },
 {
 "not" : {
 "EstablishmentMeans" : [
 "is not null"
 ]
 }
 }
 ]
 },
 {
 "or" : [
 "OccurrenceStatus is Present",
 {
 "not" : {
 "OccurrenceStatus" : [
 "is not null"
 ]
 }
 }
 ]
 }
 ]
}

 The dataset includes 30 records from 7 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0045794-240229165702484/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.9kasng
title: Occurrence Download

description: A dataset containing 56955 species occurrences available in GBIF matching the query:
{
 "and" : [
 {
 "or" : [
 "BasisOfRecord is Observation",
 "BasisOfRecord is Human Observation"
 ]
 },
 "TaxonKey is Euplectes ardens (Boddaert, 1783)"
 ]
}

 The dataset includes 56955 records from 20 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0035111-210914110416597/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.hnezgr
title: Occurrence Download

description: A dataset containing 3939029 species occurrences available in GBIF matching the query:
{
 "Country" : [
 "is Colombia"
 ]
}

 The dataset includes 3939029 records from 1047 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0011424-160910150852091/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.t5xqy6
title: Occurrence Download

description: A dataset listing the 19 species recorded in GBIF matching the query:
{
 "and" : [
 "Country is Viet Nam",
 "TaxonKey is Trypetheliaceae"
 ]
}

 The dataset's 19 records were derived from 10 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0045855-240229165702484/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.j4jqbe
title: Occurrence Download

description: A dataset containing 62 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Bipes canaliculatus Bonnaterre, 1789"
 ]
}

 The dataset includes 62 records from 11 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0316940-200613084148143/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.sovyqx
title: Occurrence Download

description: A dataset containing 1 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Ethmostigmus trigonopodus Leach, 1817",
 "Country is Mexico",
 "BasisOfRecord is Human Observation"
 ]
}

 The dataset includes 1 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0011424-170714134226665/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.