cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.14272/hcwooullnkjzht-uhfffaoysa-n.1
title: 2-tert-butyl-3-chloroquinoxaline
title: InChI=1S/C12H13ClN2/c1-12(2,3)10-11(13)15-9-7-5-4-6-8(9)14-10/h4-7H,1-3H3

description: This is a physical chemical entity[CHEBI_24431] associated with a molecule[CHEBI_25367]. The molecule[CHEBI_25367] can be described by the following structural desciptors[cheminf_000085]: InChI descriptor[cheminf_000113]: InChI=1S/C12H13ClN2/c1-12(2,3)10-11(13)15-9-7-5-4-6-8(9)14-10/h4-7H,1-3H3, and canonical SMILES descriptor[cheminf_000007]: Clc1nc2ccccc2nc1C(C)(C)C, and by the IUPAC name[cheminf_000107]: 2-tert-butyl-3-chloroquinoxaline. The physical chemical entity[CHEBI_24431] has a component solvent[CHEBI_46787] which is described by the canonical SMILES descriptor[cheminf_000007]: The physical chemical entity[CHEBI_24431] has the following Sample ID as registered in the research data repository chemotion (www.chemotion-repository.net, https://doi.org/10.25504/FAIRsharing.iagXcR): CRS-24144 The physical chemical entity[CHEBI_24431] can be described by the physical descriptors [CHEMINF_000025]: Melting point descriptor[CHEMINF_000256]: 36.0 - 37.0 (°C) Boiling point descriptor[CHEMINF_000257]: Refractive index descriptor[CHEMINF_000253]: The physical chemical entity[CHEBI_24431] can be further described by the following assays[OBI:0000070][CHMO:0001133]: CHMO:0000593 | 1H nuclear magnetic resonance spectroscopy (1H NMR) CHMO:0000595 | 13C nuclear magnetic resonance spectroscopy (13C NMR) CHMO:0000596 | distortionless enhancement with polarization transfer (DEPT) CHMO:0000596 | distortionless enhancement with polarization transfer (DEPT) CHMO:0000470 | mass spectrometry (MS) CHMO:0000630 | infrared absorption spectroscopy (IR) The physical chemical entity[CHEBI_24431] was deposited to the Molecule Archive of the Karlsruhe Insitute of Technology (KIT) with the following Sample ID: Used ontologies: CHEBI - Chemical Entities of Biological Interest CHEMINF - chemical information ontology (information entities about chemical entities) CHMO - Chemical Methods Ontology OBI - Ontology for Biomedical Investigations
DOI: 10.6084/m9.figshare.24241750
title: Supplementary Material for: Assessment of micronuclei frequency in the peripheral blood of adult and pediatric patients receiving fractionated total body irradiation

description: The cytokinesis-block micronucleus (CBMN) assay is an established method for assessing chromosome damage in human peripheral blood lymphocytes resulting from exposure to genotoxic agents such as ionizing radiation. The objective of this study is to measure cytogenetic DNA damage and hematology parameters in vivo based on MN frequency in peripheral blood lymphocytes (PBLs) from adult and pediatric leukemia patients undergoing hematopoietic stem cell transplantation preceded by total body irradiation (TBI) as part of the conditioning regimen. CBMN assay cultures were prepared from fresh blood samples collected before and at 4- and 24- h after the start of TBI, corresponding to doses of 1.25 Gy and 3.75 Gy, respectively. For both age groups, there was a significant increase in MN yields with increasing dose (p &lt; 0.05) and dose-dependent decrease in the nuclear division index (NDI; p &lt; 0.0001). In the pre-radiotherapy samples, there was a significantly higher NDI measured in the pediatric cohort compared to the adult due to an increase in the percentage of tri- and quadra-nucleated cells scored. Complete blood counts with differential recorded before and after TBI at the 24 h time point, showed a rapid increase in neutrophil (p = 0.0001) and decrease in lymphocyte (p = 0.0006) counts, resulting in a highly elevated neutrophil-to-lymphocyte (NRL) ratio of 14.45 ± 1.85 after 3.75 Gy TBI (pre-exposure = 4.62 ± 0.49), indicating a strong systemic inflammatory response. Correlation of the hematological cell subset counts with cytogenetic damage, indicated that only the lymphocyte subset survival fraction (after-TBI compared with before-TBI) showed a negative correlation with increasing MN frequency from 0 to 1.25 Gy (r = -0.931; p = 0.007). Further, the data presented here indicate that the combination of CBMN assay endpoints (MN frequency and NDI values) and hematology parameters could be used to assess cytogenetic damage and early hematopoietic injury in the peripheral blood of leukemia patients, 24 h after TBI exposure
DOI: 10.6084/m9.figshare.24241750.v1
title: Supplementary Material for: Assessment of micronuclei frequency in the peripheral blood of adult and pediatric patients receiving fractionated total body irradiation

description: The cytokinesis-block micronucleus (CBMN) assay is an established method for assessing chromosome damage in human peripheral blood lymphocytes resulting from exposure to genotoxic agents such as ionizing radiation. The objective of this study is to measure cytogenetic DNA damage and hematology parameters in vivo based on MN frequency in peripheral blood lymphocytes (PBLs) from adult and pediatric leukemia patients undergoing hematopoietic stem cell transplantation preceded by total body irradiation (TBI) as part of the conditioning regimen. CBMN assay cultures were prepared from fresh blood samples collected before and at 4- and 24- h after the start of TBI, corresponding to doses of 1.25 Gy and 3.75 Gy, respectively. For both age groups, there was a significant increase in MN yields with increasing dose (p &lt; 0.05) and dose-dependent decrease in the nuclear division index (NDI; p &lt; 0.0001). In the pre-radiotherapy samples, there was a significantly higher NDI measured in the pediatric cohort compared to the adult due to an increase in the percentage of tri- and quadra-nucleated cells scored. Complete blood counts with differential recorded before and after TBI at the 24 h time point, showed a rapid increase in neutrophil (p = 0.0001) and decrease in lymphocyte (p = 0.0006) counts, resulting in a highly elevated neutrophil-to-lymphocyte (NRL) ratio of 14.45 ± 1.85 after 3.75 Gy TBI (pre-exposure = 4.62 ± 0.49), indicating a strong systemic inflammatory response. Correlation of the hematological cell subset counts with cytogenetic damage, indicated that only the lymphocyte subset survival fraction (after-TBI compared with before-TBI) showed a negative correlation with increasing MN frequency from 0 to 1.25 Gy (r = -0.931; p = 0.007). Further, the data presented here indicate that the combination of CBMN assay endpoints (MN frequency and NDI values) and hematology parameters could be used to assess cytogenetic damage and early hematopoietic injury in the peripheral blood of leukemia patients, 24 h after TBI exposure
DOI: 10.5281/zenodo.10051066
title: Dataset and model of "Bridging Micromechanics and Effective Medium Theory to Predict Crustal Seismic Velocities"
DOI: 10.5281/zenodo.10051067
title: Dataset and model of "Bridging Micromechanics and Effective Medium Theory to Predict Crustal Seismic Velocities"
DOI: 10.5281/zenodo.7741475
title: Endoscopic Bladder Tissue Classification Dataset

description: This is the dataset used in the article Semi-Supervised Bladder Tissue Classification in Multi-Domain Endoscopic Images [1]. The dataset is composed of 1,754 endoscopic images from 23 patients undergoing  Trans-Urethral Resection of Bladder Tumor (TURBT) and labeled according to their respective  histopathology analysis from the resected tissue. This endoscopic procedure is usually carried out using White Light Imaging (WLI) and when available Narrow Band Imaging (NBI) is also used. 
Four different classes are defined taking into consideration the general classification of Bladder Cancer as defined by the WHO and the International Society of Urological Pathology; two categories were considered for cancerous tissue: Low-Grade Cancer (LGC) and High-Grade Cancer (HGC). Additionally, 2 extra categories were considered for No Tumor Lesion (NTL) which comprehends cystitis, caused by infections or other inflammatory agents, and Non-Suspicious Tissue (NST).
The annotation file contains the name of each frame, the imaging type (NBI or WLI) the tissue type (HGC, LGC, NTL, NST) and the dataset in which they were used to train the classifier (train/val/test). For more details please check the referred publication associated with this dataset. 
1. J. F. Lazo et al., "Semi-Supervised Bladder Tissue Classification in Multi-Domain Endoscopic Images," in IEEE Transactions on Biomedical Engineering, vol. 70, no. 10, pp. 2822-2833, Oct. 2023, doi: 10.1109/TBME.2023.3265679."
description: This work was supported by the ATLAS project. This project has received funding from the European Union's Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No 813782.
This work was also partially supported by French State Funds managed by the Agence Nationale de la Recherche (ANR) through the Investissements d'Avenir Program under Grant ANR-11-LABX-0004 (Labex CAMI) and Grant ANR-10-IAHU-02 (IHU-Strasbourg).
DOI: 10.5281/zenodo.7741476
title: Endoscopic Bladder Tissue Classification Dataset

description: This is the dataset used in the article Semi-Supervised Bladder Tissue Classification in Multi-Domain Endoscopic Images [1]. The dataset is composed of 1,754 endoscopic images from 23 patients undergoing  Trans-Urethral Resection of Bladder Tumor (TURBT) and labeled according to their respective  histopathology analysis from the resected tissue. This endoscopic procedure is usually carried out using White Light Imaging (WLI) and when available Narrow Band Imaging (NBI) is also used. 
Four different classes are defined taking into consideration the general classification of Bladder Cancer as defined by the WHO and the International Society of Urological Pathology; two categories were considered for cancerous tissue: Low-Grade Cancer (LGC) and High-Grade Cancer (HGC). Additionally, 2 extra categories were considered for No Tumor Lesion (NTL) which comprehends cystitis, caused by infections or other inflammatory agents, and Non-Suspicious Tissue (NST).
The annotation file contains the name of each frame, the imaging type (NBI or WLI) the tissue type (HGC, LGC, NTL, NST) and the dataset in which they were used to train the classifier (train/val/test). For more details please check the referred publication associated with this dataset. 
1. J. F. Lazo et al., "Semi-Supervised Bladder Tissue Classification in Multi-Domain Endoscopic Images," in IEEE Transactions on Biomedical Engineering, vol. 70, no. 10, pp. 2822-2833, Oct. 2023, doi: 10.1109/TBME.2023.3265679."
description: This work was supported by the ATLAS project. This project has received funding from the European Union's Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No 813782.
This work was also partially supported by French State Funds managed by the Agence Nationale de la Recherche (ANR) through the Investissements d'Avenir Program under Grant ANR-11-LABX-0004 (Labex CAMI) and Grant ANR-10-IAHU-02 (IHU-Strasbourg).
DOI: 10.57702/ob9frras
title: acled_data Dataset

description: @prefix dcat: &lt;http://www.w3.org/ns/dcat#&gt; . @prefix dct: &lt;http://purl.org/dc/terms/&gt; . @prefix t: &lt;https://schema.coypu.org/metadata-template#&gt; . &lt;https://metadata.coypu.org/dataset/acled_data&gt; dcat:landingPage &lt;https://acleddata.com/data-export-tool/&gt;. &lt;https://metadata.coypu.org/dataset/acled_data&gt; t:licenseNote "Citation "Armed Conflict Location & Event Data Project (ACLED); www.acleddata.com"". &lt;https://metadata.coypu.org/dataset/acled_data&gt; t:theme "Conflict events". &lt;https://metadata.coypu.org/dataset/acled_data&gt; t:licensePage &lt;https://acleddata.com/terms-of-use/&gt;. &lt;https://metadata.coypu.org/dataset/acled_data&gt; t:type "Dump".
DOI: 10.5281/zenodo.7728593
title: Historical Occurrence of Antarctic Icebergs within Mercantile Shipping Routes and the Exceptional Events of the 1890s

description: This is the dataset created for the Journal of Glaciology paper "Historical Occurrence of Antarctic Icebergs within Mercantile Shipping Routes and the Exceptional Events of the 1890s" by Robert Headland, Nick Hughes and Jeremy Wilkinson (doi:10.1017/jog.2023.80). We have endeavoured to make the data as accessible as possible by providing it in a range of formats.
Please see the README.pdf for a detailed description of the files, and the paper for the dataset. Version 1.1 contains additional reports from newspaper archives.
DOI: 10.5281/zenodo.7728594
title: Historical Occurrence of Antarctic Icebergs within Mercantile Shipping Routes and the Exceptional Events of the 1890s

description: <strong>This is the dataset created for the Journal of Glaciology paper “Historical Occurrence of Antarctic Icebergs within Mercantile Shipping Routes and the Exceptional Events of the 1890s” (JOG-22-0139) by Robert Headland, Nick Hughes and Jeremy Wilkinson (doi: TBD). We have endeavoured to make the data as accessible as possible by providing it in a range of formats. </strong> <strong>Please see the README.pdf for a detailed description of the files, and the paper for the dataset.</strong>
DOI: 10.5281/zenodo.8007770
title: Historical Occurrence of Antarctic Icebergs within Mercantile Shipping Routes and the Exceptional Events of the 1890s

description: This is the dataset created for the Journal of Glaciology paper "Historical Occurrence of Antarctic Icebergs within Mercantile Shipping Routes and the Exceptional Events of the 1890s" by Robert Headland, Nick Hughes and Jeremy Wilkinson (doi:10.1017/jog.2023.80). We have endeavoured to make the data as accessible as possible by providing it in a range of formats.
Please see the README.pdf for a detailed description of the files, and the paper for the dataset. Version 1.1 contains additional reports from newspaper archives.
DOI: 10.5281/zenodo.10066793
title: Article data of The Impact of MDR-1 Gene Polymorphism (rs1128503) on Response to Imatinib and nilotinib Treatment in A Sample of Iraqi Chronic Myeloid Leukemia-Chronic Phase Patients
DOI: 10.5281/zenodo.10066792
title: Article data of The Impact of MDR-1 Gene Polymorphism (rs1128503) on Response to Imatinib and nilotinib Treatment in A Sample of Iraqi Chronic Myeloid Leukemia-Chronic Phase Patients
DOI: 10.6084/m9.figshare.24442654
title: Supplementary Material for: Rapid and effective elimination of myoglobin with CytoSorb® hemoadsorber in patients with severe rhabdomyolysis

description: Introduction: Rhabdomyolysis is characterized by destruction of muscle fibres by various causes, diagnosed by increased creatin kinase concentrations in the blood. Myoglobin released into the blood may cause acute kidney injury. In this randomized controlled study, we hypothesized that myoglobin elimination would be faster when a hemoadsorber is added to a continuous venovenous hemodialysis. Methods: Four patients in the control group received CVVHD with a high cut-off hemofilter using high blood and dialysate flows for 48 hours. Four patients in the CytoSorb group received the same treatment, but in addition, the hemoadsorber CytoSorb® was inserted in front of the hemofilter and replaced once after 24 hours. Blood samples were drawn simultaneously before (pre) and after (post) the hemofilter or else the hemoadsorber, after 5 and 30 min, as well as after 2, 4, 8 and 24 hours. All measurements were repeated the next day after the hemoadsorber had been renewed in the CytoSorb group. Primary outcome was the area under the curve of the relative myoglobin concentrations as percent of baseline (AUC). To evaluate the efficacy of myoglobin removal, relative reductions in myoglobin concentrations during one passage through of each device at each time point were calculated. Results: Patients in the CytoSorb group had a significantly lower AUC during the first 24 hours (42±10% versus 63±6%, P = 0.029) as well as during the observation period of 48 hours (26±7% versus 51±12%, P = 0.029). The relative reductions for myoglobin were considerably higher in the CytoSorb compared to the control group during the first 8 hours. Conclusion: Myoglobin concentrations declined considerably faster when CytoSorb was added to a CVVHD. When compared to a high cut-off hemofilter, efficacy of CytoSorb in myoglobin elimination was much better. Because of saturation after 8 to 12 hours an exchange may be necessary.
DOI: 10.25716/gude.0ewg-cc0u
title: Microscopic analysis of the valence transition in tetragonal EuPd2Si2

description: Under temperature or pressure tuning, tetragonal EuPd2Si2 is known to undergo a valence transition from nearly divalent to nearly trivalent Eu accompanied by a volume reduction. Albeit intensive work, its microscopic origin is still being discussed. Here, we investigate the mechanism of the valence transition under volume compression by ab initio density functional theory (DFT) calculations. Our analysis of the electronic and magnetic properties of EuPd2Si2 when approaching the valence transition shows an enhanced c−f hybridization between localized Eu 4f states and itinerant conduction states (Eu 5d, Pd 4d, and Si 3p) where an electronic charge redistribution takes place. We observe that the change in the electronic structure is intimately related to the volume reduction where Eu-Pd(Si) bond lengths shorten and, for the transition to happen, we trace the delicate balance between electronic bandwidth, crystal field splitting, Coulomb repulsion, Hund's coupling and spin-orbit coupling. In a next step we compare and benchmark our DFT results to surface-sensitive photoemission data in which the mixed-valent properties of EuPd2Si2 are reflected in a simultaneous observation of divalent and trivalent signals from the Eu 4f shell. The study serves as well to explore the limits of density functional theory and the choice of exchange correlation functionals to describe such a phenomenon as a valence transition.
description: DFT input and output files of the paper(Phys. Rev. B 107, 075149) are included.
DOI: 10.6084/m9.figshare.24487384
title: good vs. bad hearing results

description: The next-generation sequencing of VS tumor samples revealed specific miRNA expression pattern that correlated with patients hearing impairment. Among top DEMs identified in VS tumor samples derived form poor hearing patients are miR 449a/b, miR 15/16-1 and hypoxamiRs. The bioinformatic functional analysis identified molecular pathways regulated by these miRNAs, including HIF-1, MAPK and Wnt signaling pathways. The results of our study give a new insight into potential molecular mechanisms related to hearing loss in the course of VS.
DOI: 10.6084/m9.figshare.24487384.v1
title: good vs. bad hearing results

description: The next-generation sequencing of VS tumor samples revealed specific miRNA expression pattern that correlated with patients hearing impairment. Among top DEMs identified in VS tumor samples derived form poor hearing patients are miR 449a/b, miR 15/16-1 and hypoxamiRs. The bioinformatic functional analysis identified molecular pathways regulated by these miRNAs, including HIF-1, MAPK and Wnt signaling pathways. The results of our study give a new insight into potential molecular mechanisms related to hearing loss in the course of VS.
DOI: 10.14272/pecaokzhordwai-uhfffaoysa-n/chmo0000596.1
title: distortionless enhancement with polarization transfer (DEPT) (3,6-diiodo-9H-carbazole)
title: InChI=1S/C12H7I2N/c13-7-1-3-11-9(5-7)10-6-8(14)2-4-12(10)15-11/h1-6,15H

description: dataset for distortionless enhancement with polarization transfer (DEPT)
DOI: 10.14272/pecaokzhordwai-uhfffaoysa-n.1
title: 3,6-diiodo-9H-carbazole
title: InChI=1S/C12H7I2N/c13-7-1-3-11-9(5-7)10-6-8(14)2-4-12(10)15-11/h1-6,15H

description: This is a physical chemical entity[CHEBI_24431] associated with a molecule[CHEBI_25367]. The molecule[CHEBI_25367] can be described by the following structural desciptors[cheminf_000085]: InChI descriptor[cheminf_000113]: InChI=1S/C12H7I2N/c13-7-1-3-11-9(5-7)10-6-8(14)2-4-12(10)15-11/h1-6,15H, and canonical SMILES descriptor[cheminf_000007]: Ic1ccc2c(c1)c1cc(I)ccc1[nH]2, and by the IUPAC name[cheminf_000107]: 3,6-diiodo-9H-carbazole. The physical chemical entity[CHEBI_24431] has a component solvent[CHEBI_46787] which is described by the canonical SMILES descriptor[cheminf_000007]: The physical chemical entity[CHEBI_24431] has the following Sample ID as registered in the research data repository chemotion (www.chemotion-repository.net, https://doi.org/10.25504/FAIRsharing.iagXcR): CRS-24104 The physical chemical entity[CHEBI_24431] can be described by the physical descriptors [CHEMINF_000025]: Melting point descriptor[CHEMINF_000256]: 203.0 - 206.0 (°C) Boiling point descriptor[CHEMINF_000257]: Refractive index descriptor[CHEMINF_000253]: The physical chemical entity[CHEBI_24431] can be further described by the following assays[OBI:0000070][CHMO:0001133]: CHMO:0000593 | 1H nuclear magnetic resonance spectroscopy (1H NMR) CHMO:0000595 | 13C nuclear magnetic resonance spectroscopy (13C NMR) CHMO:0000596 | distortionless enhancement with polarization transfer (DEPT) CHMO:0000596 | distortionless enhancement with polarization transfer (DEPT) CHMO:0000470 | mass spectrometry (MS) CHMO:0000630 | infrared absorption spectroscopy (IR) The physical chemical entity[CHEBI_24431] was deposited to the Molecule Archive of the Karlsruhe Insitute of Technology (KIT) with the following Sample ID: Used ontologies: CHEBI - Chemical Entities of Biological Interest CHEMINF - chemical information ontology (information entities about chemical entities) CHMO - Chemical Methods Ontology OBI - Ontology for Biomedical Investigations
DOI: 10.14272/pecaokzhordwai-uhfffaoysa-n/chmo0000593
title: 1H nuclear magnetic resonance spectroscopy (1H NMR) (3,6-diiodo-9H-carbazole)
title: InChI=1S/C12H7I2N/c13-7-1-3-11-9(5-7)10-6-8(14)2-4-12(10)15-11/h1-6,15H

description: dataset for 1H nuclear magnetic resonance spectroscopy (1H NMR) 1H NMR (400 MHz, DMSO-d6 [2.50 ppm], ppm) δ = 11.55 (s, 1H, NH), 8.57 (d, 4J = 1.8 Hz, 2H, CHar), 7.66 (dd, 3J = 8.5 Hz, 4J = 1.8 Hz, 2H, CHar), 7.35 (d, 3J = 8.5 Hz, 2H, CHar).Impurities (ppm): 5.76 (DCM), 3.36 (water).
DOI: 10.14272/pecaokzhordwai-uhfffaoysa-n/chmo0000630
title: infrared absorption spectroscopy (IR) (3,6-diiodo-9H-carbazole)
title: InChI=1S/C12H7I2N/c13-7-1-3-11-9(5-7)10-6-8(14)2-4-12(10)15-11/h1-6,15H

description: dataset for infrared absorption spectroscopy (IR) IR (ATR, ṽ) = 3410, 1867, 1737, 1592, 1558, 1466, 1424, 1375, 1367, 1316, 1281, 1239, 1208, 1186, 1126, 1043, 1010, 935, 892, 868, 840, 799, 776, 769, 741, 734, 722, 679, 629, 616, 584, 564, 500, 489, 476, 462, 455, 421, 412, 380 cm–1.
DOI: 10.14272/pecaokzhordwai-uhfffaoysa-n/chmo0000470
title: mass spectrometry (MS) (3,6-diiodo-9H-carbazole)
title: InChI=1S/C12H7I2N/c13-7-1-3-11-9(5-7)10-6-8(14)2-4-12(10)15-11/h1-6,15H

description: dataset for mass spectrometry (MS) MS (FAB, 3-NBA), m/z (%): 419 (50) [M]+, 307 (35), 293 (11), 289 (15), 155 (32), 154 (100), 139 (18), 138 (38), 137 (61), 136 (64), 120 (11), 107 (21), 97 (15), 95 (16), 91 (17), 90 (11), 89 (15).HRMS–FAB (m/z): [M]+ calcd for C12H7N127I2 418.8663; found 418.8660.
DOI: 10.14272/pecaokzhordwai-uhfffaoysa-n/chmo0000595
title: 13C nuclear magnetic resonance spectroscopy (13C NMR) (3,6-diiodo-9H-carbazole)
title: InChI=1S/C12H7I2N/c13-7-1-3-11-9(5-7)10-6-8(14)2-4-12(10)15-11/h1-6,15H

description: dataset for 13C nuclear magnetic resonance spectroscopy (13C NMR) 13C NMR (101 MHz, DMSO-d6 [39.52 ppm], ppm) δ = 138.8 (2C, Cq), 134.1 (2C, CHar), 129.2 (2C, CHar), 123.9 (2C, Cq), 113.5 (2C, CHar), 81.9 (2C, Cq).
DOI: 10.14272/pecaokzhordwai-uhfffaoysa-n/chmo0000596
title: distortionless enhancement with polarization transfer (DEPT) (3,6-diiodo-9H-carbazole)
title: InChI=1S/C12H7I2N/c13-7-1-3-11-9(5-7)10-6-8(14)2-4-12(10)15-11/h1-6,15H

description: dataset for distortionless enhancement with polarization transfer (DEPT)