Showing 3,121 - 3,140 results of 4,095 for search '"spectroscopy"', query time: 0.09s Refine Results
  1. 3121

    Comparison of creatinine‐based methods for estimating glomerular filtration rate in patients with heart failure by Anna Jonsson, Ida Viklund, Andreas Jonsson, Fredrik Valham, Ellinor Bergdahl, Krister Lindmark, Helena Norberg

    Published 2020-06-01
    “…Methods and results One hundred forty‐six HF patients (mean age 68 ± 13 years, mean left ventricular ejection fraction 45% ± 15) within a single‐centre hospital that underwent 51Cr‐EDTA clearance between 2010 and 2018 were included in this retrospective study. eGFR was estimated by means of Cockcroft–Gault ideal and actual weight, the Modification of Diet in Renal Disease Study (MDRD), simplified MDRD with isotope dilution mass spectroscopy traceable calibration, the Chronic Kidney Disease Epidemiology Collaboration, revised Lund–Malmö, full age spectrum, and the Berlin Initiative Study 1. …”
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  2. 3122

    Preparation, Characterization and Utilization of Amidoximated Poly(AN/MAA)-grafted Alhagi Residues for the Removal of Zn(II) Ions from Aqueous Solution by A.A. Khalil, H.H. Sokker, A. Al-Anwar, A. Abd El-Zaher, A. Hashem

    Published 2009-05-01
    “…The grafted samples were characterized using FT-IR spectroscopy and scanning electron microscopy (SEM), as well as by the estimation of their nitrogen and carboxyl group contents. …”
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  3. 3123

    Enhancing the Performance of Lignocellulosic Textile Fabrics by Chemical Treatment and Filler Modification by Mahbub Morshed Khan, Md. Rokonuzzaman, Abu Sayeed, T. Islam, D. Paul, A.T.M. Gulam Moula, M.S. Jahan, S.C. Das

    Published 2025-12-01
    “…Further characterization was performed using FTIR (Fourier Transform Infrared) spectroscopy, TGA (Thermogravimetric Analysis), and SEM (Scanning Electron Microscopy) analysis. …”
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  4. 3124

    Identification of key elements in MRI reporting of intracranial meningiomas based on a nationwide survey of clinical experts in Germany by Torge Huckhagel, Tammam Abboud, Jan Regelsberger, Stefan Rieken, Christian Riedel

    Published 2025-01-01
    “…Advanced methods (diffusion, perfusion, proton spectroscopy) and meningioma-specific classifications (Nauta, Zee, Sindou) were judged to be less relevant (< 50.0% agreement) to MRI reporting. …”
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  5. 3125

    Photocatalytic Degradation of Methylene Blue and Antibacterial Activity of Mesoporous TiO2-SBA-15 Nanocomposite Based on Rice Husk by Eid H. Alosaimi, Ibrahim Hotan Alsohaimi, Talal E. Dahan, Qiao Chen, Ayman Abdelaziz younes, Belal El-Gammal, Saad Melhi

    Published 2021-01-01
    “…The fabricated nanocomposites were characterized using FTIR, small and wide angle XRD, Raman spectroscopy, UV-vis, BET surface area analysis, and HRTEM. …”
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  6. 3126

    Deoxycholate, an Endogenous Cytotoxin/Genotoxin, Induces the Autophagic Stress-Survival Pathway: Implications for Colon Carcinogenesis by Claire M. Payne, Cheray Crowley-Skillicorn, Hana Holubec, Katerina Dvorak, Carol Bernstein, Mary Pat Moyer, Harinder Garewal, Harris Bernstein

    Published 2009-01-01
    “…The DOC-induced increase in autophagy was documented by an increase in autophagic vacuoles (detected using transmission electron microscopy, increased levels of LC3-I and LC3-II (western blotting), an increase in acidic vesicles (fluorescence spectroscopy of monodansycadaverine and lysotracker red probes), and increased expression of the autophagic protein, beclin-1 (immunohistochemistry/western blotting). …”
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  7. 3127

    Photocatalytic Degradation of Methylene Blue under UV Light Irradiation on Prepared Carbonaceous TiO2 by Zatil Amali Che Ramli, Nilofar Asim, Wan N. R. W. Isahak, Zeynab Emdadi, Norasikin Ahmad-Ludin, M. Ambar Yarmo, K. Sopian

    Published 2014-01-01
    “…X-ray powder diffraction (XRD), transmission electron microscopy (TEM), Fourier transform infrared (FTIR), thermogravimetric analysis (TG-DTA), Brunauer-Emmet-Teller (BET), and UV-Vis spectroscopy were used to characterize and evaluate the prepared samples. …”
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  8. 3128

    Innovative bio-inspired solar cells using fly ash-based dye-sensitized cells with fruit extract enhancements and Averrhoa bilimbi electrolyte by Retyo Wizi Nafa Utami, Tresna Dewi, Indrayani Indrayani

    Published 2025-01-01
    “…The research focuses on designing DSSCs with Fe and Mg extracted from fly ash as counter electrodes, dragon fruit peel as a natural dye sensitizer, and Averrhoa bilimbi as an electrolyte booster. UV-Vis spectroscopy demonstrated that dragon fruit dye absorbs light effectively in the 360-700 nm range, peaking at 550 nm, making it an ideal sensitizer for wide-band gap semiconductors. …”
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  9. 3129

    Rapid adsorption of selenium removal using iron manganese-based micro adsorbent by Sundus Saeed Qureshi, Sheeraz Ahmed Memon, Rafi-ul-Zaman, Nanik Ram, Sumbul Saeed, Nabisab Mujawar Mubarak, Rama Rao Karri

    Published 2022-10-01
    “…Micro-particles were characterized by using energy-dispersive X-ray spectroscopy for elemental analysis after adsorption, which confirms the adsorption of selenium on the surface of the micro-composite adsorbent, scanning electron microscopy, which shows particles are circular in shape and irregular in size, Brunauer–Emmett–Teller which results from the total surface area of particles were 59.345m2/g, Zeta particle size, which results from average particles size were 39.8 nm. …”
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  10. 3130

    TiO2 Nanocoatings with Controllable Crystal Type and Nanoscale Topography on Zirconia Implants to Accelerate Bone Formation by Nan Li, Zhichao Liu, Guanqi Liu, Zhi Wang, Xianwei Guo, Chuanbin Guo, Jianmin Han

    Published 2022-01-01
    “…Various investigations into the coating surface morphology, topography, wettability, and chemical composition were carried out using scanning electron microscopy, white light interferometry, contact-angle measurement, X-ray diffraction, and X-ray photoelectron spectroscopy. In addition, in vitro cytocompatibility and osteogenic potential performance of the coatings were evaluated by human bone marrow mesenchymal stem cells (hBMSCs), and in vivo osseointegration performance was assessed in a rat femoral condyle model. …”
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  11. 3131
  12. 3132

    Synthesis of Mesoporous ZnO•SiO2 Nanocomposite from Rice Husk for Enhanced Degradation of Organic Substances Including Janus Green B under Visible Light by Thu Huong Nguyen, Tuan Cuong Vu, Trung Phong Le, Thu Huyen Nguyen, Xuan Truong Do, Anh-Tuan Vu

    Published 2024-10-01
    “…The as-synthesized materials were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR), and N2 adsorption/desorption isotherm. …”
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  13. 3133

    Fabrication of Dye-Sensitized Solar Cells (DSSC) Using Mg-Doped ZnO as Photoanode and Extract of Rose Myrtle (Rhodomyrtus tomentosa) as Natural Dye by Nurdin Siregar, Motlan, Jonny Haratua Panggabean, Makmur Sirait, Juniastel Rajagukguk, Noto Susanto Gultom, Fedlu Kedir Sabir

    Published 2021-01-01
    “…The effect of annealing temperature (400-550°C) on the films of photoanode was systematically studied using an X-ray diffractometer (XRD), UV-Visible Near Infrared (UV-Vis NIR) Spectrophotometer, scanning electron microscopy (SEM), and energy dispersive spectroscopy (EDS). XRD confirm that all sample has the wurtzite hexagonal with crystallite size of 25 nm. …”
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  14. 3134

    Multiphase superconductivity in PdBi2 by Lewis Powell, Wenjun Kuang, Gabriel Hawkins-Pottier, Rashid Jalil, John Birkbeck, Ziyi Jiang, Minsoo Kim, Yichao Zou, Sofiia Komrakova, Sarah Haigh, Ivan Timokhin, Geetha Balakrishnan, Andre K. Geim, Niels Walet, Alessandro Principi, Irina V. Grigorieva

    Published 2025-01-01
    “…Here we report a magnetic-field driven phase transition in β-PdBi2, a layered non-magnetic superconductor. Our tunnelling spectroscopy on thin PdBi2 monocrystals incorporated in planar superconductor-insulator-normal metal junctions reveals a marked discontinuity in the superconducting properties with increasing in-plane field, which is consistent with a transition from conventional (s-wave) to nodal pairing. …”
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  15. 3135

    Application of Response Surface Methodology for Optimization of Urea Grafted Multiwalled Carbon Nanotubes in Enhancing Nitrogen Use Efficiency and Nitrogen Uptake by Paddy Plants by Norazlina Mohamad Yatim, Azizah Shaaban, Mohd Fairuz Dimin, Faridah Yusof, Jeefferie Abd Razak

    Published 2016-01-01
    “…The chemical changes were monitored by FT-IR and Raman spectroscopy. Hence, this UF-MWCNTs’ approach provides a promising strategy in enhancing plant nutrition for rice.…”
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  16. 3136

    A review of hyperspectral image analysis techniques for plant disease detection and identif ication by A. F. Cheshkova

    Published 2022-04-01
    “…Hyperspectral analysis is a new subject that combines optical spectroscopy and image analysis methods, which make it possible to simultaneously evaluate both physiological and morphological parameters. …”
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  17. 3137

    Antioxidant and anti-diabetic potential of the green synthesized silver nanoparticles using Martynia annua L. root extract by Megha B. Abbigeri, Bothe Thokchom, Sapam Riches Singh, Santosh Mallikarjun Bhavi, B.P. Harini, Ramesh Babu Yarajarla

    Published 2025-12-01
    “…Characterization through UV-Visible spectroscopy, FTIR, DLS, and SEM/EDX confirmed the formation of AgNPs with polygonal morphology and an average size of 64 nm, with the PDI of 0.385. …”
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  18. 3138

    Influence of Preheating Procedure and Polymerization Modes on Degree of Conversion of Contemporary Resin Composites by Mutlu Özcan, Başak Yazkan, Nilgün Akgül, Ahmet Erdem, Özge Gizem Yenidünya

    Published 2025-01-01
    “…DC was measured with Fourier Transform Infrared Spectroscopy after 5 min and 24 h post-irradiation. Furthermore, three-way analysis of variance followed by a Tukey test at a significance level of P &lt;.05 were performed to compare the DC values.Results: Considering the DC values at two post-irradiation time, preheated VCB group polymerized with HM gave the highest DC value, while GSX cured with XM, regardless of the preheating exhibited the lowest one. …”
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  19. 3139

    Mechanical properties and durability against the dry termite attacks of particleboard made from bamboo with citric acid as adhesive by Ragil Widyorini, Ari Puspa Yudha, Ganis Lukmandaru, Tibertius Agus Prayitno

    Published 2015-03-01
    “…Fourier transform infrared spectroscopy (FTIR) analysis was used for investigating the changes of ester groups at various citric acid content and pressing temperature. …”
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  20. 3140

    Untargeted NMR Study of Metabolic Changes in Processing Tomato Treated with <i>Trichoderma atroviride</i> Under Open-Field Conditions and Exposed to Heatwave Temperatures by Lorenzo Pin, Anatoly Petrovich Sobolev, Giulio Testone, Giuseppe Scioli, Flavia Pinzari, Francesco Magnanimi, Giuseppe Colla, Mariateresa Cardarelli, Donato Giannino

    Published 2024-12-01
    “…Untargeted quantitative NMR spectroscopy was leveraged to characterize the metabolome of tomato fruits exposed to abiotic stress during the year 2022, which was marked by unexpected high temperatures and low rainfall compared to the year 2021 with average conditions. …”
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