cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.15468/dl.fj7f5y
title: Occurrence Download

description: A dataset containing 2209 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Lepus saxatilis F.Cuvier, 1823"
 ]
}

 The dataset includes 2209 records from 50 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0010545-240314170635999/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.qpntwh
title: Occurrence Download

description: A dataset containing 14449 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Euphorbia peplis L."
 ]
}

 The dataset includes 14449 records from 224 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0044230-240314170635999/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.x68bhc
title: Occurrence Download

description: A dataset containing 51 species occurrences available in GBIF matching the query:
{
 "DatasetKey" : [
 "is Microzooplankton abundance measured on water bottle samples at station PS65/522-1"
 ]
}

 The dataset includes 51 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0009534-160623103540712/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.7ufxhd
title: Occurrence Download

description: A dataset containing 1783 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Croton tiglium L."
 ]
}

 The dataset includes 1783 records from 76 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0010542-240314170635999/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.1285/i22390359v60
title: Tra mito e realtà. Immagini del Sud Italia in Russia e in Polonia

description: Il volume monografico Tra mito e realtà. Immagini del Sud Italia in Russia e in Polonia rappresenta un momento di riflessione profonda sui riverberi imagologici del Sud Italia nelle aree letterario-culturali russe e polacche. Ne scaturiscono trame comuni, si rintracciano interferenze letterarie, si rivelano contatti appartenenti al passato ma forieri di sviluppi futuri in un'ottica di apertura verso "l'altro", di costruzione di legami interculturali e di reciproco arricchimento intellettuale. L'architettura compositiva della ricerca è costituita dai ventuno saggi che interrogano i testi dedicati al meridione d'Italia, faro di attrazione sin da tempi remoti per i viaggiatori provenienti dalla Slavia orientale ed occidentale.
DOI: 10.15468/dl.g26fu4
title: Occurrence Download

description: A dataset containing 4 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Etlingera densiuscula (Valeton) R.M.Sm."
 ]
}

 The dataset includes 4 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0044238-240314170635999/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.zsdgge
title: Occurrence Download

description: A dataset containing 1 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Aplidium paessleri (Michaelsen, 1907)"
 ]
}

 The dataset includes 1 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0009534-170714134226665/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.hwccku
title: Occurrence Download

description: A dataset containing 968 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Dosinia discus (Reeve, 1850)",
 "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 968 records from 32 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0049749-240229165702484/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.5sawpa
title: Occurrence Download

description: A dataset containing 158 species occurrences available in GBIF matching the query:
{
 "and" : [
 "PublishingCountry is Canada",
 "TaxonKey is one of (Crataegus irrasa Sarg.)"
 ]
}

 The dataset includes 158 records from 9 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0044239-240314170635999/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.ksc7n3
title: Occurrence Download

description: A dataset containing 663 species occurrences available in GBIF matching the query:
{
 "and" : [
 "HasCoordinate is true",
 "TaxonKey is Turnera subulata J.E.Sm.",
 "HasGeospatialIssue is false"
 ]
}

 The dataset includes 663 records from 63 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0004018-190918142434337/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.eyc4qm
title: Occurrence Download

description: A dataset containing 63 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Bituminaria plumosa (Rchb.) Bogdanovic, C.Brullo, Brullo, Ljubicic & Giusso"
 ]
}

 The dataset includes 63 records from 14 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0054785-240229165702484/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.br3bst
title: Occurrence Download

description: A dataset containing 16771 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Geometry POLYGON((35.32496433333334 32.097476, 69.37031999999999 32.097476, 69.37031999999999 49.184106666666665, 35.32496433333334 49.184106666666665, 35.32496433333334 32.097476))",
 "EventDate is 2015-05-01,2015-05-31"
 ]
}

 The dataset includes 16771 records from 95 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0044201-240314170635999/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.ydo2gh
title: Occurrence Download

description: A dataset containing 42829 species occurrences available in GBIF matching the query:
{
 "DatasetKey" : [
 "is Medicinal plants and associated plant collections at Ghana Herbarium"
 ]
}

 The dataset includes 42829 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0004027-190918142434337/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.6s625v
title: Occurrence Download

description: A dataset containing 17 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 Caecilia nigricans Boulenger, 1902"
 ]
}

 The dataset includes 17 records from 14 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0049797-240229165702484/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.emm3aq
title: Occurrence Download

description: A dataset containing 324 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Plethodon fourchensis Duncan & Highton, 1979",
 "HasGeospatialIssue is false",
 "HasCoordinate is true",
 "OccurrenceStatus is Present",
 {
 "not" : {
 "BasisOfRecord" : [
 "is one of (Fossil, Living Specimen)"
 ]
 }
 },
 {
 "or" : [
 "CoordinateUncertaintyInMeters is less than 1000",
 "CoordinateUncertaintyInMeters is null"
 ]
 }
 ]
}

 The dataset includes 324 records from 7 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0044218-240314170635999/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.dvreks
title: Occurrence Download

description: A dataset containing 2127 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Geometry POLYGON((9.58008 46.43786,4.48242 43.19717,7.4707 38.82259,13.97461 36.31513,21.88477 37.30028,23.81836 34.88593,29.26758 36.59789,30.67383 41.77131,28.21289 43.32518,30.14648 46.07323,29.0918 48.22467,25.92773 48.22467,9.58008 46.43786))",
 "HasCoordinate is true",
 "TaxonKey is Pinus pinaster Aiton",
 "HasGeospatialIssue is false"
 ]
}

 The dataset includes 2127 records from 27 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0004025-190918142434337/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.q5he25
title: Occurrence Download

description: A dataset containing 630375 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Equisetum arvense L."
 ]
}

 The dataset includes 630375 records from 2186 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0044222-240314170635999/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.17632/tfkdsz8h32
title: sRNA Seq Siglec15

description: Siglecs are well known immunotherapeutic targets in cancer. Current checkpoint inhibitors have exhibited limited efficacy, prompting a need for novel therapeutics for targets such as Siglec-15. Presently, small molecule inhibitors targeting Siglec-15 are not explored alongside characterised regulatory mechanisms involving microRNAs in CRC progression. Therefore, a small molecule inhibitor to target Siglec-15 was elucidated in vitro and microRNA mediated inhibitor effects were investigated. Our research findings demonstrated that the SHG-8 molecule exerted significant cytotoxicity on cell viability, migration, and colony formation, with an IC50 value of approximately 20µM. SHG-8 significantly reduced the SIGLEC15 expression at the gene and protein levels. Notably, miR-6715b-3p was the most upregulated miRNA in high-throughput sequencing, which was also validated via RT-qPCR. MiR-6715b-3p may regulate PTTG1IP, a potential oncogene which was validated via RT-qPCR and in silico analysis. Additionally, molecular docking studies revealed SHG-8 interactions with the Siglec-15 binding pocket with the binding affinity of -5.4 kcal/mol, highlighting its role as a small molecule inhibitor. Importantly, Siglec-15 and PD-L1 are expressed on mutually exclusive cancer cell populations, suggesting the potential for combination therapies with PD-L1 antagonists.
DOI: 10.17632/brgp63skc7
title: Coffee Shops Small Businesses VS Big Corporations in Madison, NJ and Surrounding Areas

description: Coffee Shops Small Businesses VS Big Corporations in Madison, NJ and Surrounding Areas by Cat Maida and Kyla Koslov
DOI: 10.17632/bx3tfttnnc
title: Diseño y Desarrollo de un Proceso Autónomo de Pesaje Diario de Café que Envié Remotamente la Información: Vigilancia Tecnológica

description: Este proyecto propone implementar una báscula electrónica con conectividad remota en fincas cafetaleras, para automatizar el pesaje diario de sacos de café y enviar los datos en tiempo real a una plataforma digital. Esto permitirá un control más preciso y eficiente de la producción, asegurando el pago justo a los recolectores y facilitando la gestión de la finca. La báscula estará diseñada para resistir condiciones adversas y funcionará con energía solar, adaptándose a zonas con acceso limitado a internet mediante almacenamiento temporal de datos. Además, ofrecerá trazabilidad del café, un valor añadido en mercados que valoran la sostenibilidad. El proyecto también incluirá capacitación para asegurar una adopción efectiva de la tecnología, mejorando tanto la eficiencia como las condiciones laborales en las fincas.
DOI: 10.17632/mz7s6vf5wg
title: Humanitarian and USDef Fuel Data

description: Fuel Data for Data in Brief and published EsWA article, "Commodity prediction using modulated rank reduction for humanitarian logistics planning"
DOI: 10.17632/n6cjfccynn
title: LDHU3_05.0110

description: Rrp15; Leishmania donovani (HU3 strain)
DOI: 10.17632/s54rwpgndh
title: LINF_250019800

description: kDNA replication protein | P105
Leishmania infantum (strain JPCM5)
DOI: 10.17632/svc266z5y5
title: Assessing the Impact of Pomegranate Peel Extract Active Packaging and High Hydrostatic Pressure Processing on Color and Oxidative Stability in Sliced Nitrate/Nitrite-Reduced Iberian Dry-Cured Loins

description: Data Active Packaging+High pressure processingv+ nitrite
DOI: 10.17632/zvm9b7mgvv
title: Putting a price tag on hot lots and expediting in semiconductor manufacturing

description: Results for all simulated scenarios
DOI: 10.17632/23jswzgmcc
title: МЕТОДИ ТА МЕТОДИКИ МОДЕЛЮВАННЯ ТА АНАЛІЗУ ПАТОЛОГІЧНИХ ПРОЦЕСІВ ПОВЕДІНКИ У КОНТЕКСТІ ЛІКАРСЬКОЇ ДІАГНОСТИКИ

description: Pochynok , Y. (2022). МЕТОДИ ТА МЕТОДИКИ МОДЕЛЮВАННЯ ТА АНАЛІЗУ ПАТОЛОГІЧНИХ ПРОЦЕСІВ ПОВЕДІНКИ У КОНТЕКСТІ ЛІКАРСЬКОЇ ДІАГНОСТИКИ. Experimental Psychology & Human Sciences, 3(1), 1-15. Retrieved from https://ephs-journal.org.ua/index.php/journal/article/view/6
DOI: 10.17632/485swhn5tc
title: Regulation of neuroregeneration by long noncoding RNAs

description: Source data for panels in Ben-Tov Perry et al.
DOI: 10.17632/7z6cx7szk3
title: DYNAMIC DATA NEXUS BETWEEN ENERGY PRICE, USE AND INTENSITY TO FINANCIAL DEVELOPMENT IN SELECTED AFRICAN OIL EXPORTING COUNTRIES

description: DYNAMIC DATA NEXUS BETWEEN ENERGY PRICE, USE AND INTENSITY TO FINANCIAL DEVELOPMENT IN SELECTED AFRICAN OIL EXPORTING COUNTRIES
DOI: 10.17632/kkrmvsrbpx
title: LDHU3_15.1600

description: KREPB7; Leishmania donovani (HU3 strain)
DOI: 10.17632/vgmdz4c74t
title: Top Arms Importers 

description: This study investigates whether there is a systematic relationship between the weapons trade, military expenditure, and economic growth. While some perceive military spending as a guarantee of security and peace, others see it as a foolish endeavor that could spark arms races or armed conflict. This study adopts a CS-ARDL approach to investigate the nexus between arms imports, military expenditure, and per capita GDP for a balanced panel of eight of the top arms importers in the world from 1990 to 2021. It also uses other second-generation tests, such as CIPS and Westerlund's (2007) cointegration and FMOLS, for the robustness of the analysis. We find that armed imports negatively impact GDP per capita, but military spending is beneficial over the long and short term. We also used the Dumitrescu Hurlin Granger causality test, which revealed a bidirectional feedback effect between military expenditure and per capita GDP and a unidirectional causal relationship from military spending to arms imports. The findings of this paper support the Keynesian and Wagnerian hypothesis that with an increase in state responsibilities, government spending and economic growth go hand in hand.
DOI: 10.17632/vxycrbybh8
title: Mg isotopes of siliciclastic sediments on continental marginal sea: Insights for the potential to trace silicate weathering

description: This is the analyzed data for the samples from ECS.
DOI: 10.17632/w5wthng722
title: Prognostic Value of Pretreatment Systemic Inflammatory Markers for cSCC

description: Supplemental Figures
Mendeley Supplemental Figure 1. Receiver operating characteristic (ROC) curves for determining the optimal cut-off values of preoperative systemic inflammatory markers for recurrence: (A) Neutrophil-to-Lymphocyte Ratio (NLR) (AUC = 0.696); (B) Lymphocyte-to-Monocyte Ratio (LMR) (AUC = 0.612); (C) Platelet-to-Lymphocyte Ratio (PLR) (AUC = 0.610); (D) Red Cell Distribution Width (RDW) (AUC = 0.495)

Mendeley Supplemental Figure 2. Kaplan-Meier survival analysis for distant metastasis-free survival based on preoperative systemic inflammatory markers: (A) Neutrophil-to-Lymphocyte Ratio (NLR) (P &lt; 0.001); (B) Lymphocyte-to-Monocyte Ratio (LMR) (P &lt; 0.001); (C) Platelet-to-Lymphocyte Ratio (PLR) (P = 0.001); (D) Red Cell Distribution Width (RDW) (P &lt; 0.001). 

Mendeley Supplemental Figure 3. Kaplan-Meier survival analysis for disease-specific survival based on preoperative systemic inflammatory markers: (A) Neutrophil-to-Lymphocyte Ratio (NLR) (P &lt; 0.001); (B) Lymphocyte-to-Monocyte Ratio (LMR) (P &lt; 0.001); (C) Platelet-to-Lymphocyte Ratio (PLR) (P &lt; 0.001); (D) Red Cell Distribution Width (RDW) (P &lt; 0.001). 

Mendeley Supplemental Figure 4. Kaplan-Meier survival analysis for overall survival based on preoperative systemic inflammatory markers: (A) Neutrophil-to-Lymphocyte Ratio (NLR) (P &lt; 0.001); (B) Lymphocyte-to-Monocyte Ratio (LMR) (P = 0.002); (C) Platelet-to-Lymphocyte Ratio (PLR) (P = 0.003); (D) Red Cell Distribution Width (RDW) (P &lt; 0.001).

Supplemental Tables
Mendeley Supplementary Table I. Inflammatory markers, calculated ratios, and cut-off values
Mendeley Supplementary Table II. Cox univariate and multivariate analyses for distant metastasis-free survival
Mendeley Supplementary Table III. Cox univariate and multivariate analyses for disease-specific survival
Mendeley Supplementary Table IV. Cox univariate and multivariate analyses for overall survival
DOI: 10.17632/y3gbz9s9rp
title: Controlling the bioelectrical properties of neurons with ferritin-based magnetogenetics

description: Data correspond to the study of the magnetic activation of ion channels coupled with ferritin. The magnetogenetic technique FeRIC was used to activate ferritin-coupled TRPV4 and TMEM16A channels. The data correspond to electrophysiological recordings of the membrane resistance, membrane currents, and spiking activity in Neuro2a cells and neurons. The data also include voltage imaging results using the voltage-sensitive fluorophore BeRST 1. The activity of neurons is reported as spiking activity in Hz. The data also include calcium and halide imaging results. Data is organized in files corresponding to the Figures of the manuscript "Controlling the bioelectrical properties of neurons with ferritin-based magnetogenetics" which is under review.
DOI: 10.17632/yh5wrrb5cf
title: The 3D Topography of Mitotic Chromosomes

description: These images correspond to the Figures and Supplemental Information Figures for a paper of this name to be published in Molecular Cell. These images were collected from Zeiss microscopes (Airyscan and SIM) in ".czi" format. Those ".czi" pictures were opened with Image J(Fiji). The pictures or cropped versions of the pictures were saved into tif format (using the default setting: 16-bit type). Images were then transferred to ppt files using the "Insert-&gt;Picture" function.
DOI: 10.17632/2wjgsgpxjc
title: Data for: Pharmacological interventions to reduce edema following cardiopulmonary bypass: a systematic review and meta-analysis
DOI: 10.17632/395b3vcph5
title: LDHU3_07.0800

description: electron transfer flavoprotein-ubiquinone oxidoreductase
Leishmania donovani (HU3 strain)
DOI: 10.17632/3r8hz3hc6y
title: LINF_300038100

description: glutamyl-tRNA synthetase | GluRS
Leishmania infantum (strain JPCM5)
DOI: 10.17632/523fv459dj
title: PSM_IRM

description: Part-Supplier Matrix (PSM) maps parts to the potential suppliers. IRM (Integration Risk Matrix) maps the integration risk level of the parts that are integrated by the suppliers.
DOI: 10.17632/6p9ynvxf3d
title: LDHU3_19.0230

description: ADP-ATP carrier protein 1 | ANC2 | MCP5a; Leishmania donovani (HU3 strain)
DOI: 10.17632/6sf3xrkt75
title: LDHU3_11.0330

description: NADH-cytochrome b5 reductase-like protein; Leishmania donovani (HU3 strain)
DOI: 10.17632/b4fhb4ndng
title: Deciphering site formation processes in lakeshore environments: a case study of Early Pleistocene site of Feiliang (Nihewan Basin, China): data and scripts

description: Data and R scripts for manscript "Deciphering site formation processes in lakeshore environments: a case study of Early Pleistocene site of Feiliang (Nihewan Basin, China)"
DOI: 10.17632/gbj893nv8c
title: Spectrum Holding Ceiling and Service Efficiency of Major Mobile Phone Licensees in Thailand

description: This data set represents the analysis results and the raw data from a study in Thailand to demonstrate the effect of spectrum holding ceiling determination. To do this, the researchers retrieved data from Q3 2012 - Q1 2020 for the three largest mobile operators in Thailand (AIS, TRUE, and DTAC). From this massive archive, the researchers using various statistical methods and Excel and Stat software conducted an analysis of each operator’s total mobile users, their total mobile broadband users, the total revenue generated, each operators capital expenditures (CapEx), operating expenses (OPEX), and net profit in relation to per 1 MHz of spectrum owned and the industry average.
DOI: 10.17632/gnzk23pcj3
title: High myopia enhances the occurrence of primary open-angle glaucoma through the regulation of trabecular meshwork stress

description: WB original data
DOI: 10.17632/hmgftwkhhy
title: Didactic planning for English 3 level

description: This document is a didactic planning for an English 3 course. In it you can find the phases that a teacher must take into account when guiding a course at the Universidad Cooperativa de Colombia.Besides helping the professor with the orientations that should be taken into account, it helps the students to know how the courses work.
DOI: 10.17632/j7tpcnmbbb
title: Data for: The feedback interaction between biomass accumulation and heterogeneous flow in porous media: Effect of shear stresses

description: 1. Model validation Experiments conducted by Seifert and Engesgaard (2012) were used to calibrate our mode 2. Simulations in scenario A & B Simulations in scenario A & B ( In the case of a specific flow rate: 1e-4 m/s)
DOI: 10.17632/m35v8w7vwk
title: raw image data for "Resilient anatomy and local microplasticity of naïve and stress hematopoiesis "_ED figure 1-10_part_3

description: raw image data for "Resilient anatomy and local microplasticity of naïve and stress hematopoiesis "_ED figure 1-10_part_3
DOI: 10.17632/rgyhh74f2d
title: LINF_250024800

description: SET30
Leishmania infantum (strain JPCM5)
DOI: 10.17632/tptmvynfh2
title: LDHU3_17.1290

description: Lysine decarboxylase-like protein; Leishmania donovani (HU3 strain)
DOI: 10.17632/v825g9c62z
title: LINF_250008800

description: mt-SAF34
Leishmania infantum (strain JPCM5)
DOI: 10.17632/xgt462dbkz
title: HCV IRES captures an actively translating 80S ribosome

description: The HCV IRES binds to the translating ribosomes (Fig 1B). The Cap-dependent and HCV IRES-dependent translations are stalled by uORF2 sequence (Figs 2B and 5B)
DOI: 10.17632/xtcf3dww2m
title: Data for: Oxygenation of acid sulfate soils stimulates CO2 emission: Roles of acidic dissolution and hydroxyl radical oxidation