Showing 7,841 - 7,860 results of 7,881 for search '"Nuclear Magnetic Resonance"', query time: 0.22s Refine Results
  1. 7841
  2. 7842

    INHIBITION OF GLUTHATION S TRANSFERASES BY CURCUMIN AND ITS DERIVATIVES MOLECULAR MECHANISM AND QUALITATIVE STRUCTURE-ACTIVITY RELATIONSHIPS by Perpustakaan UGM, i-lib

    Published 2000
    “…Chemically synthesis via intermediate N-acetyl-S-L-alanyl methyl ester sulfenyl chloride was successful to get mercapturic acid of dimethyl curcumin,but not of curcumin [based on the proton nuclear magnetic resonance (H-NMR) and mass spectral data]. …”
    Article
  3. 7843

    A KINETIC STUDY OF ESTERIFICATION OF NAPHTHENIC ACIDS FROM A COLOMBIAN HEAVY CRUDE OIL by Haydée Quiroga-Becerra, Carlos Mejía-Miranda, Dionisio Laverde-Cataño, Marian Hernández-López, Mauricio Gómez-Sánchez

    Published 2012-01-01
    “…Naphthenic acids were extracted from the crude and structurally characterized by Fourier Transform Infrared Spectroscopy (FTIR), Nuclear Magnetic Resonance (NMR) and Gel Permeation Chromatography (GPC). …”
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    Article
  4. 7844
  5. 7845

    Study on the Nonlinear Permeability Mechanism and Pore Structure Characteristics of Deep Confined Aquifers by Shilong Peng, Zhijun Li, Yuhao Xu, Guangyong Cao

    Published 2023-10-01
    “…The internal pore structure characteristics of clayey sand were obtained by using low-field nuclear magnetic resonance (NMR) technology to explore the clayey sand’s nonlinear permeability micro-mechanism. …”
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    Article
  6. 7846

    Identifying metabolic features of colorectal cancer liability using Mendelian randomization by Caroline Bull, Emma Hazelwood, Joshua A Bell, Vanessa Tan, Andrei-Emil Constantinescu, Carolina Borges, Danny Legge, Kimberley Burrows, Jeroen R Huyghe, Hermann Brenner, Sergi Castellvi-Bel, Andrew T Chan, Sun-Seog Kweon, Loic Le Marchand, Li Li, Iona Cheng, Rish K Pai, Jane C Figueiredo, Neil Murphy, Marc J Gunter, Nicholas J Timpson, Emma E Vincent

    Published 2023-12-01
    “…Methods: To investigate whether changes in circulating metabolites characterize the early stages of colorectal cancer (CRC) development, we examined the associations between a genetic risk score (GRS) associated with CRC liability (72 single-nucleotide polymorphisms) and 231 circulating metabolites measured by nuclear magnetic resonance spectroscopy in the Avon Longitudinal Study of Parents and Children (N = 6221). …”
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    Article
  7. 7847
  8. 7848

    Fine-tuned cholesterol solubilizer, mono-6-O-α-D-maltosyl-γ-cyclodextrin, ameliorates experimental Niemann–Pick disease type C without hearing loss by Yusei Yamada, Toru Miwa, Masaki Nakashima, Aina Shirakawa, Akira Ishii, Nanami Namba, Yuki Kondo, Toru Takeo, Naomi Nakagata, Keiichi Motoyama, Taishi Higashi, Hidetoshi Arima, Yuki Kurauchi, Takahiro Seki, Hiroshi Katsuki, Yasuyo Okada, Atsushi Ichikawa, Katsumi Higaki, Ken Hayashi, Kentaro Minami, Naoki Yoshikawa, Ryuji Ikeda, Yoshihide Ishikawa, Tomohito Kajii, Kyoko Tachii, Hiroki Takeda, Yorihisa Orita, Muneaki Matsuo, Tetsumi Irie, Yoichi Ishitsuka

    Published 2022-11-01
    “…To investigate the molecular mechanisms of action behind the differential ototoxicity of these CDs, we performed cholesterol solubility analysis, proton nuclear magnetic resonance spectroscopy, and molecular modeling, and estimated that the cholesterol inclusion mode of G2-γ-CD maintained solely the 1:1 inclusion complex, whereas that of HP-β-CD shifted to the highly-soluble 2:1 complex at higher concentrations. …”
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    Article
  9. 7849

    A Review of Current Status and Analysis Methods of Antibiotic Contamination in Groundwater in China (2012—2021) by NIU Ying, AN Sheng, CHEN Kai, QIN Jiujun, LIU Fei

    Published 2023-01-01
    “…These methods include microbial inhibition method (MIT), thin layer chromatography (TLC), gas chromatogram-mass spectrometry (GC-MS), high-performance liquid chromatogram-nuclear magnetic resonance (HPLC-NMR) and liquid chromatogram-mass spectrometry (LC-MS). …”
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    Article
  10. 7850

    Trichostatin D as a Novel KLF2 Activator Attenuates TNFα-Induced Endothelial Inflammation by Lijuan Lei, Minghua Chen, Chenyin Wang, Xinhai Jiang, Yinghong Li, Weizhi Wang, Shunwang Li, Liping Zhao, Ren Sheng, Jiangxue Han, Yuyan Zhang, Yuchuan Chen, Biying Yan, Yexiang Wu, Liyan Yu, Shuyi Si, Yanni Xu

    Published 2022-11-01
    “…By using a high-throughput screening model based on a <i>KLF2</i> promoter luciferase reporter assay, column chromatography, electrospray ionization mass spectrometry (ESI-MS), and nuclear magnetic resonance (NMR) spectra, trichostatin D (TSD) was isolated from the rice fermentation of <i>Streptomyces</i> sp. …”
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    Article
  11. 7851

    5.310 Laboratory Chemistry, Fall 2017 by Dolhun, John J.

    Published 2021
    “…The course covers principles and applications of chemical laboratory techniques, including preparation and analysis of chemical materials, measurement of pH, gas and liquid chromatography, visible-ultraviolet spectrophotometry, infrared spectroscopy, nuclear magnetic resonance, mass spectrometry, polarimetry, X-ray diffraction, kinetics, data analysis, and organic synthesis.AcknowledgementsDr. …”
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  12. 7852

    5.311 Introductory Chemical Experimentation, Fall 2005 by Schrenk, Janet, Berkowski, Kimberly, Gheorghiu, Mircea

    Published 2023
    “…Experimental work emphasizes development of fundamental laboratory skills and techniques: volumetric and colorimetric analysis; nuclear magnetic resonance; preparation, purification, and characterization of chemical substances; and data analysis. …”
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  13. 7853

    Phase evolution and local structure in [Cs, MA][Pb, Sr][Cl, Br]3 perovskites by Dintakurti, Sri Harsha Satya Sai

    Published 2022
    “…High resolution 133Cs/207Pb/13C/1H magic angle spinning nuclear magnetic resonance spectrometry (MAS-NMR) verified each composition was single-phase and highly ordered. …”
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    Thesis-Doctor of Philosophy
  14. 7854

    Design, fabrication and characterization of dynamic covalent polymer networks containing reversible Diels-Alder adducts derived from vegetable oil and furfural by Yuan Nie, Mei Li, Shouhai Li, Mingtao Lin, Na Yao, Tianxiang Deng, Xiao Feng, Xiaohua Yang, Haiyang Ding, Lina Xu

    Published 2023-10-01
    “…The reprocessability, shape memory, molecular structures, thermal properties and mechanical properties of the DCPNs were all investigated. 1H nuclear magnetic resonance (1H-NMR) and Fourier transform infrared spectroscopy (FTIR) analysises demonstrated the target reactive products were all successfully synthesized. …”
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    Article
  15. 7855

    Improvement of Charge Characteristics of Oxisols Using Basalt and Rice Husk Compost for Cocoa Growth by Anda, Markus

    Published 2006
    “…The type of organic C functional groups was determined using a solid state cross polarization magic angle spinning (CP/MAS) 13C nuclear magnetic resonance (NMR) spectroscopy. The C functional groups were similar when determined under laboratory, glasshouse and field conditions. …”
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    Thesis
  16. 7856

    The synthesis of compounds related to naturally occurring flavanoids by Munro, D

    Published 1965
    “…</p> <p>A number of simple flavan-4-ols have been synthesised, and their benzoates shown, by a <em>strict</em> examination by nuclear magnetic resonance spectroscopy, to exist in a "half chair" conformation, with the oxygen function axial in the α-flavanols and equatorial in the β-flavanols. …”
    Thesis
  17. 7857

    A PRELIMINARY STUDY OF INVESTIGATING OF COMPOUND GROUP CONTAINED IN ETHANOLIC EXTRACT OF MAHAGONY (Swietenia mahagoni L. Jacq.) SEEDS RELATED TO Α-GLUCOSIDASE INHIBITION by Anjar Purba Asmara

    Published 2018-06-01
    “…I. isolation, structures, and 1H- and 13C-nuclear magnetic resonance signal assignments of new tetranorterpenoids related to swietenine and swietenolide. …”
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    Article
  18. 7858

    The gut microbiota and metabolome are associated with diminished COVID-19 vaccine-induced antibody responses in immunosuppressed inflammatory bowel disease patientsResearch in cont... by James L. Alexander, Benjamin H. Mullish, Nathan P. Danckert, Zhigang Liu, Marton L. Olbei, Aamir Saifuddin, Melissa Torkizadeh, Hajir Ibraheim, Jesús Miguéns Blanco, Lauren A. Roberts, Claire M. Bewshea, Rachel Nice, Simeng Lin, Hemanth Prabhudev, Caroline Sands, Verena Horneffer-van der Sluis, Matthew Lewis, Shaji Sebastian, Charlie W. Lees, Julian P. Teare, Ailsa Hart, James R. Goodhand, Nicholas A. Kennedy, Tamas Korcsmaros, Julian R. Marchesi, Tariq Ahmad, Nick Powell

    Published 2023-02-01
    “…Patients were classified as having responses above or below the geometric mean of the wider CLARITY-IBD cohort. 16S rRNA gene amplicon sequencing, nuclear magnetic resonance (NMR) spectroscopy and bile acid profiling with ultra-high-performance liquid chromatography mass spectrometry (UHPLC-MS) were performed on faecal samples. …”
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    Article
  19. 7859

    PREDICTION OF DENSITY AND VISCOSITY OF COLOMBIAN CRUDE OILS FROM CHROMATOGRAPHIC DATA by Giovanni Morales-Medina, Alexander Guzmán

    Published 2012-01-01
    “…Notwithstanding this, performance of the regression based on GC data was lower compared to the corresponding Nuclear Magnetic Resonance models. Validations of the regressions with PLS2-5 reported average relative errors for density and kinematic viscosity (predicted in terms of DF*Ln(Vk)) of 1,4 and 29%, respectively, which are surprisingly low given the appreciable amount of chromatographic residue in several crudes. …”
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    Article
  20. 7860

    Analogues of choline and related compounds by Edwards, R, Edwards, R. G.

    Published 1973
    “…</p> <p>Since the phosphorus-31 nucleus has a spin of andfrac12;, and couples with the proton, both proton magnetic resonance (PMR) and <sup>31</sup>P nuclear magnetic resonance (<sup>31</sup>P-NMR) studies of the phosphonium analogues were found to be of interest. …”
    Thesis