Showing 2,221 - 2,240 results of 2,328 for search '"Iron ', query time: 0.09s Refine Results
  1. 2221

    Understanding Dioxygen Activation in the Fe(III)-Promoted Oxidative Dehydrogenation of Amines: A Computational Study by Ricardo D. Páez-López, Miguel Á. Gómez-Soto, Héctor F. Cortés-Hernández, Alejandro Solano-Peralta, Miguel Castro, Peter M. H. Kroneck, Martha E. Sosa-Torres

    Published 2025-01-01
    “…The DFT calculations show that (i) <sup>3</sup>O<sub>2</sub> abstracts a hydrogen atom from the α-pyridine aliphatic C-H moiety, introducing a double bond regio-selectively at the C<sub>7</sub>N<sub>8</sub> position, via the hydrogen atom transfer (HAT) mechanism, (ii) O<sub>2</sub> does not coordinate to the iron center to generate a high-valent Fe oxo species observed in enzymes and biomimetic complexes, and (iii) the experimental activation parameters (ΔH<sup>≠</sup> = 20.38 kcal mol<sup>−1</sup>, ΔS<sup>≠</sup> = −0.018 kcal mol<sup>−1</sup> K<sup>−1</sup>) fall within in the range of values reported for HAT reactions and align well with the computational results for the activated complex [Fe<sup>II</sup>L<sup>3</sup><sub>N8•</sub>]<sup>2+</sup>···<sup>3</sup>O<sub>2</sub>.…”
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  2. 2222

    3D Printed Swordfish‐Like Wireless Millirobot by Xingcheng Ou, Yu Sheng, Jiaqi Huang, Dantong Huang, Xiaohong Li, Ran Bi, Guoliang Chen, Weijie Hu, Shuang‐Zhuang Guo

    Published 2025-01-01
    “…The robot includes a silicone‐based torso (body, abdomen, and pectoral fin) and a crescent‐shaped tail fin made from a magnetically programmable polymer embedded with neodymium‐iron‐boron (NdFeB) particles. The tail fin, fabricated by multi‐material alternating printing to achieve a gradient magnetism distribution, is controlled by an external magnetic field to mimic the rapid oscillation of a swordfish's tail, achieving a swimming speed of 0.51 BL/ s. …”
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  3. 2223

    The Metempiricism of Margins: Professor Anthony Aṣiwaju and the Circumference of Knowledge by Toyin Falola

    Published 2021-12-01
    “…The life of the author, Aṣiwaju, becomes the account of the aṣíwájú of the borderlands, the leader of the bold and courageous to discover the confines of space, like Ogún, the Yoruba god of iron, who forges new paths and abodes from the forest to the savanna for people to occupy. …”
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  4. 2224

    Modulation of virulence and metabolic profiles in Klebsiella pneumoniae under indole-mediated stress response by Xueyao Fang, Yanhui Chen, Longhua Hu, Shumin Gu, Junqi Zhu, Yaping Hang, Xingwei Cao, Yanping Xiao, Hong Luo, Chuwen Zhao, Lianhua Xiao, Qiaoshi Zhong

    Published 2025-02-01
    “…To elucidate the underlying molecular mechanisms, transcriptome analysis revealed that indole exposure in K. pneumoniae led to the upregulation of genes associated with pili formation and iron acquisition systems, while simultaneously inducing oxidative stress responses. …”
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  5. 2225

    Continuous photo-oxidation of methane to methanol at an atomically tailored reticular gas-solid interface by Yuchen Hao, Liwei Chen, Haodong Liu, Wenfeng Nie, Xiangjie Ge, Jiani Li, Hui-Zi Huang, Chao Sun, Cuncai Lv, Shangbo Ning, Linjie Gao, Yaguang Li, Shufang Wang, An-Xiang Yin, Bo Wang, Jinhua Ye

    Published 2025-01-01
    “…We show that the domino synergy between colocalized single-atom palladium and iron on MOF nodes enables efficient generation and in situ utilization of H2O2 in the absence of liquid water, thus circumventing H2O2 dilution. …”
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  6. 2226

    CircTTC13 promotes sorafenib resistance in hepatocellular carcinoma through the inhibition of ferroptosis by targeting the miR-513a-5p/SLC7A11 axis by Ying Zhang, Ruiwei Yao, Mingyi Li, Chongkai Fang, Kunliang Feng, Xiuru Chen, Jinan Wang, Rui Luo, Hanqian Shi, Xinqiu Chen, Xilin Zhao, Hanlin Huang, Shuwei Liu, Bing Yin, Chong Zhong

    Published 2025-01-01
    “…Many first-line chemotherapeutic drugs induce ferroptosis, a form of programmed cell death dependent on ferrous iron-mediated oxidative stress, suggesting that drug resistance and ensuing tumor progression may in part stem from reduced ferroptosis. …”
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  7. 2227

    LUBAC Formation Is Impaired in the Livers of Mice with MCD-Dependent Nonalcoholic Steatohepatitis by Yasuka Matsunaga, Yusuke Nakatsu, Toshiaki Fukushima, Hirofumi Okubo, Misaki Iwashita, Hideyuki Sakoda, Midori Fujishiro, Takeshi Yamamotoya, Akifumi Kushiyama, Shin-ichiro Takahashi, Yoshihiro Tsuchiya, Hideaki Kamata, Fuminori Tokunaga, Kazuhiro Iwai, Tomoichiro Asano

    Published 2015-01-01
    “…Recently, it was reported that the new ubiquitin ligase complex termed linear ubiquitin chain assembly complex (LUBAC), composed of SHARPIN (SHANK-associated RH domain-interacting protein), HOIL-1L (longer isoform of heme-oxidized iron-regulatory protein 2 ubiquitin ligase-1), and HOIP (HOIL-1L interacting protein), forms linear ubiquitin on NF-κB essential modulator (NEMO) and thereby induces NF-κB pathway activation. …”
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  8. 2228

    East Asian Gene flow bridged by northern coastal populations over past 6000 years by Juncen Liu, Yichen Liu, Yongsheng Zhao, Chao Zhu, Tianyi Wang, Wen Zeng, Bo Sun, Fen Wang, Hui Han, Zhenguang Li, Xiaotian Feng, Peng Cao, Fengshi Luan, Feng Liu, Qingyan Dai, Junfeng Guo, Zimeng Wang, Chengmin Wei, Qiaowei Wei, Ruowei Yang, Weihong Hou, Wanjing Ping, Fan Bai, Bo Miao, Wenjun Wang, Melinda A. Yang, Qiaomei Fu

    Published 2025-02-01
    “…Reconstructing the genetic history of the Neolithic, Bronze, and Iron Age populations of coastal northern East Asia shows gene flow on both a north-south and an east-west (inland-coastal-island) scale.…”
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  9. 2229

    NDM-1-Positive K. pneumoniae at a Teaching Hospital in Southwestern China: Clinical Characteristics, Antimicrobial Resistance, Molecular Characterization, Biofilm Assay, and Virule... by Kai Yang, Shumin Liu, Huanqin Li, Na Du, Jing Yao, Qiuyue He, Yan Du

    Published 2020-01-01
    “…KfuB and iutA were detected at prevalence of 3.33% and 13.33%. vatD, allS, iroN, aerobactin, and rmpA were not detected. In the NDM-1-negative K. pneumoniae, all other 14 virulence genes except VatD were detected. …”
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  10. 2230

    Characterization of selenium nanoparticles extracted from Bacillus subtilis and its antibacterial effects in Onychostoma macrolepis: Insight into ferroptosis by Chao Zhu, Guofan Peng, Jincan Li, Yalong Deng, Tianqi Jin, Qimin Liu, Heran Cao, Zifang Wu, Yuxuan Ma, Zhenpeng Li, Yang Wang, Lijuan Zheng, Xiangtong Yuan, Lijun Zhang, Fangxia Yang, Hong Ji, Wuzi Dong

    Published 2025-01-01
    “…Interestingly, we found supplementing 0.9 mg/kg biogenic SeNPs decreased MDA, iron content, and enhanced T-AOC levels in the liver of O. macrolepis fry after a challenged by Aeromonas hydrophila (P˂0.01). …”
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  11. 2231

    L’ensemble monumental du Pâtis à Vieillevigne (Loire-Atlantique) : un nouvel exemple de complexe sur cour laténien en Gaule by Yann Dufay-Garel, Marie Grall, Sandrine Paradis-Grenouillet, Rémy Wassong

    Published 2024-12-01
    “…The planned extension of the Pâtis quarry in Vieillevigne (Loire-Atlantique, France) occasioned an archaeological assessment followed by a preventive excavation in the summer of 2020, covering an area of around 2 ha.The main occupation phase revealed on the site corresponds to what has been identified as a monumental complex dating from the second period of the Iron Age. It is delimited by a large, perfectly square enclosure measuring 83 m along each side and covering an area of around 6000 m2. …”
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  12. 2232
  13. 2233

    Physicochemical dataset from Lima and Douro estuaries (Northwest Portugal)Zenodo by Vânia Freitas, C. Marisa R. Almeida, Sabrina M. Rodrigues, Rúben Pereira, Ana M. Gorito, Jacinto Cunha, Diogo M. Silva, Alexandre van Heerden, Sandra Ramos

    Published 2025-04-01
    “…The dataset includes: a) in-situ vertical profiles of water physicochemical parameters (temperature, salinity, pH, turbidity, dissolved oxygen concentration and saturation) collected at 8 sampling stations along the Lima estuary (during both ebb and flood tides) and at 11 stations along the Douro estuary (during flood tides); and b) chemical analyses data, including nutrients (nitrate, nitrite, phosphate, ammonium, and silica), chlorophyll a, total particulate matter, particulate organic matter, and key metal (copper, zinc, cadmium, iron, nickel, lead, manganese, and chromium) concentrations. …”
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  14. 2234

    Borrelia burgdorferi radiosensitivity and Mn antioxidant content: antigenic preservation and pathobiology by Andrés F. Londoño, Ajay Sharma, Jared Sealy, Vipin S. Rana, Shelby D. Foor, Vera Y. Matrosova, Elena K. Gaidamakova, Robert P. Volpe, Michael J. Daly, Brian M. Hoffman, Utpal Pal, J. Stephen Dumler

    Published 2025-02-01
    “…ABSTRACT The bacterium responsible for Lyme disease, Borrelia burgdorferi, accumulates high levels of manganese without iron and possesses a polyploid genome, characteristics suggesting potential extreme resistance to radiation. …”
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  15. 2235

    L’aqueduc du Gier : nouvelles données sur le pont-siphon de Beaunant à Sainte-Foy-lès-Lyon (Métropole de Lyon) by David Baldassari, François Blondel, Stéphane Gaillot

    Published 2023-12-01
    “…The frame consisted of square and rectangular section posts 0.13 to 0.15 m wide and planks 0.36 m wide and 25 mm thick, sometimes fixed roughly to the posts with iron nails. Dendrochronological analyses revealed that the trees from which the planks were taken were felled in 110 AD, indicating that the construction of the Gier aqueduct took place early in the 2nd century AD at the end of the reign of Emperor Trajan. …”
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  16. 2236

    Usefulness of a personalized algorithm‐based discharge checklist in patients hospitalized for acute heart failure by Florent Allain, Virginie Loizeau, Laure Chaufourier, Maya Hallouche, Laurence Herrou, Amir Hodzic, Katrien Blanchart, Annette Belin, Alain Manrique, Paul Milliez, Rémi Sabatier, Damien Legallois

    Published 2020-06-01
    “…A higher proportion of patients were screened and treated for iron and vitamin D deficiencies (53.2% vs. 35.7%, P < 0.01 and 73.4% vs. 29.7%, P < 0.01, respectively), as well as malnutrition supplemented in the PCL group. …”
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  17. 2237

    Broad-line Region Characterization in Dozens of Active Galactic Nuclei Using Small-aperture Telescopes by Catalina Sobrino Figaredo, Doron Chelouche, Martin Haas, Michael Ramolla, Shai Kaspi, Swayamtrupta Panda, Martin W. Ochmann, Shay Zucker, Rolf Chini, Malte A. Probst, Wolfram Kollatschny, Miguel Murphy

    Published 2025-01-01
    “…Single-epoch spectra enable us to estimate black hole masses using the H α line and derive mass accretion rates from the iron-blend feature adjacent to H β . A similar trend, as previously reported for the H β line, is implied whereby highly accreting objects tend to lie below the size–luminosity relation of the general population. …”
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  18. 2238

    Combined Effects of Humic Acid-Modified Magnetic Biochar and AMF on the Properties of Saline-Alkali Soil and Photosynthetic Parameters of Muskmelon by ZHANG Yating, LOU Xueyi, WU Jiarui, LIU Hongyuan, YE Binyu, XIAO Jiamin, LI Jiameng, MIAO Yining, CHEN Xinyan, LIU Yilin, TAN Yuyu, WANG Zhichao, LIU Peng

    Published 2024-12-01
    “…[Results] Under 15 and 75 mmol/L saline-alkali stress, combined application of 20 g/kg AMF with 20% HA-MBC showed the best mitigation effects, with a “synergistic enhancement” observed. On one hand, the iron oxides and humic acids loaded on HA-MBC improved the physical and chemical properties of soil by increasing the quantity of surface functional groups and porosity, while AMF formed symbiotic roots to further enrich organic matter and nutrients, and increase soil enzyme activities, thus increasing the height and root length of muskmelon and promoting the recovery of Fv/Fm and the reduction of F0 and qN. …”
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  19. 2239

    Investigating the Effect of Solanum lycopersicum L. (Tomato) Pomace on Growth Performance and some Blood Indices of Broiler Chickens by Meta-Analysis Method by Zahra Sahragard, seyyed javad Hosseini-vashan, Hossein Naeemipour Younesi, Seyyed Homayon Farhangfar

    Published 2024-12-01
    “…Introduction: Tomato is a valuable vegetable that is rich in vitamins such as vitamin A, E, C, B and K, and also some of minerals such as phosphorus, iron, calcium, which are important for metabolic activities. …”
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  20. 2240