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    Advancing green analytical solutions: A review of proton transfer reaction mass spectrometry in atmospheric aerosol research by Yanwen Li

    Published 2024-12-01
    “…Atmospheric aerosols significantly influence atmospheric chemistry, climate change, and public health, necessitating robust analytical methods for their study. Proton Transfer Reaction Mass Spectrometry (PTR-MS) is a green analytical technique that minimizes sample pretreatment and avoids fragment ion generation, aligning with sustainable practices. …”
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    Daily Usage of Proton Pump Inhibitors May Reduce the Severity of Critical Upper Gastrointestinal Bleeding in Elderly Patients by Hidetaka Matsuda, Takuto Nosaka, Yu Akazawa, Yasushi Saito, Yoshihiko Ozaki, Kazuto Takahashi, Tatsushi Naito, Kazuya Ofuji, Masahiro Ohtani, Katsushi Hiramatsu, Yasunari Nakamoto

    Published 2020-01-01
    “…We retrospectively examined the relationship between daily proton pump inhibitor (PPI) use and severity of upper gastrointestinal bleeding (UGIB), mainly in the elderly. …”
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    Contribution of Protonation to the Dielectric Relaxation Arising from Bacteriopheophytin Reductions in the Photosynthetic Reaction Centers of <i>Rhodobacter sphaeroides</i> by Gábor Sipka, Péter Maróti

    Published 2024-10-01
    “…A part of the dielectric relaxation of the P<sup>+</sup>I<sub>A</sub><sup>−</sup> charge pair that is not insignificant (about 120 meV) should come from protonation-related changes. (2) The single exponential decay character of the kinetics proves that the protonated/unprotonated P<sup>+</sup>I<sub>A</sub><sup>−</sup> and P<sup>+</sup>Q<sub>A</sub><sup>−</sup> states are in equilibria and the rate constants of protonation <i>k</i><sub>on</sub><sup>H</sup> +<i>k</i><sub>off</sub><sup>H</sup> are much larger than those of the charge back reaction <i>k</i><sub>back</sub> ~10<sup>3</sup> s<sup>−1</sup>. (3) Highly similar pH profiles were measured to determine the free energy states of P<sup>+</sup>Q<sub>A</sub><sup>−</sup> and P<sup>+</sup>I<sub>A</sub><sup>−</sup>, indicating that the same acidic cluster at around Q<sub>B</sub> should respond to both anionic species. …”
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    Synergistic proton conduction via Ca-vacancy coupled with Li+-bridge in Ca5(PO4)3OH by Nabeela Akbar, Qing Pang, Yaokai Lu, Yifu Jing, Manish Singh, Jun Wang, Bin Zhu, Faze Wang, Sining Yun

    Published 2025-01-01
    “…Abstract Proton conductivity plays a crucial role in the advancement of materials for proton ceramic fuel cells (PCFCs) and a variety of electrochemical devices. …”
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    Online target normal sheath acceleration proton beam stabilization at 1 Hz in ultra-intense laser–matter interaction by Jose Luis Henares, Michael Ehret, Jon Apiñaniz, Carlos Salgado-López, José Antonio Pérez-Hernández, María Luisa Berlanga, Ana María Cives Fernández, Evgeny Filippov, Enrique García-García, Rubén Hernández Martín, Diego De Luis, Pilar Puyuelo-Valdes, Isabel Rodríguez-Pérez, María Dolores Rodríguez Frías, Iuliana-Mariana Vladisavlevici, Giancarlo Gatti

    Published 2024-01-01
    “…Experiments were carried out at the VEGA-3 laser system of the Centro de Láseres Pulsados facility where results for different tape materials and thicknesses are presented. Experimental proton spectra were recorded by a Thomson parabola spectrometer and a time-of-flight detector. …”
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    HESPERIA REleASE+: Improving Solar Proton Event Forecasting by Means of Automated Recognition of Type‐III Radio Bursts by Arik Posner, Olga Ε. Malandraki, Michalis Karavolos, Kostas Tziotziou, Fanis Smanis, Bernd Heber, Henrik Dröge, Patrick Kühl, Giorgos P. Veldes

    Published 2024-12-01
    “…REleASE forecasts are based on the detection of early arrival of near‐relativistic electrons ahead of more hazardous protons from Solar Energetic Particle (SEP) events. …”
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