Showing 301 - 320 results of 564 for search '"Alpha particle"', query time: 0.30s Refine Results
  1. 301

    Transcriptomic and genomic changes associated with radioadaptation in Exophiala dermatitidis by Mackenzie E. Malo, Zachary Schultzhaus, Connor Frank, Jillian Romsdahl, Zheng Wang, Ekaterina Dadachova

    Published 2021-01-01
    “…Analysis of differential gene expression in the adapted strain showed an overlap in response between the control conditions and reactive oxygen species conditions, whereas exposure to an alpha particle source resulted in a robust downregulation of metabolic processes and upregulation of DNA replication and repair genes, and RNA metabolic processes. …”
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    Article
  2. 302

    Effects of ion composition on escape and morphology on Mars by Q. Zhang, Q. Zhang, M. Holmström, X.-D. Wang

    Published 2023-09-01
    “…Here, we investigate in a case study the effects on escape estimates of assumed ionospheric ion composition, solar-wind alpha-particle concentration and temperature, solar-wind velocity aberration, and solar-wind electron temperature. …”
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  3. 303

    Density and magnetic field fluctuations observed by ISEE 1-2 in the quiet magnetosheath by C. Lacombe, G. Belmont, D. Hubert, C. C. Harvey, A. Mangeney, C. T. Russell, J. T. Gosling, S. A. Fuselier

    “…We compare the properties of the observed narrow-band waves with those of the unstable linear wave modes calculated for an homogeneous plasma with Maxwellian electron and bi-Maxwellian (anisotropic) proton and alpha particle distributions. The Alfvén ion cyclotron (AIC) mode appears to be dominant in the data, but there are also density fluctuations nearly in phase with the magnetic fluctuations parallel to the magnetic field. …”
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    Article
  4. 304
  5. 305

    Assessment of radium and supported radon in ground water from Cameron Highlands area / Nor Shazlina Zainal by Zainal, Nor Shazlina

    Published 2014
    “…If this water is inhaled or ingested by human, they may be exposed to the emission of energetic alpha particle from radium and supported 222Rn decaying process in this water. …”
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    Thesis
  6. 306

    Tumor growth inhibition and immune system activation following treatment with thorium-227 conjugates and PD-1 check-point inhibition in the MC-38 murine model by Axel Berg-Larsen, Anne Mobergslien, Ingrid Moen, Gebregziabher Petros, Alexander Kristian, Kristine Sponheim Gunvaldsen, Véronique Cruciani, Katrine Wickstroem, Roger Malerbakken Bjerke, Jenny Karlsson, Alan Cuthbertson

    Published 2022-11-01
    “…The radiolabeled conjugate functions as an effective delivery system of alpha-particle radiation to the surface of the tumor cell inducing difficult to repair complex DNA damage and cell death. …”
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    Article
  7. 307

    Efficient formation of inert Bi-213 chelates by tetraphosphorus acid analogues of DOTA: towards improved alpha-therapeutics by Jakub Šimeček, Petr Hermann, Christof Seidl, Frank Bruchertseifer, Alfred Morgenstern, Hans-Jürgen Wester, Johannes Notni

    Published 2018-08-01
    “…Abstract Background The recently growing interest in targeted alpha-therapy (TAT) calls for improvement of the labelling chemistry of the corresponding radionuclides. 213BiIII is a short-lived alpha emitter which emits only one alpha particle in its decay chain. Hence, it might be safer in application than other respective nuclides, such as 223Ra or 225Ac, because no alpha-emitting daughters are released upon recoil. …”
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    Article
  8. 308

    Neutron exposures in human cells: bystander effect and relative biological effectiveness. by Isheeta Seth, Jeffrey L Schwartz, Robert D Stewart, Robert Emery, Michael C Joiner, James D Tucker

    Published 2014-01-01
    “…Bystander effects have been observed repeatedly in mammalian cells following photon and alpha particle irradiation. However, few studies have been performed to investigate bystander effects arising from neutron irradiation. …”
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    Article
  9. 309

    Efficacy of Transistor Interleaving in DICE Flip-Flops at a 22 nm FD SOI Technology Node by Christopher J. Elash, Zongru Li, Chen Jin, Li Chen, Jiesi Xing, Zhiwu Yang, Shuting Shi

    Published 2022-04-01
    “…Comparisons were made between a standard DICE design and two other designs making use of the new Continuous Active (CnRx) Diffusion construct and guard-gate transistor stacking through alpha particle and heavy ion irradiation. Designs making use of the CnRx construct for performance improvements were more likely to experience upsets due to higher collected charges in the increased diffusion regions. …”
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    Article
  10. 310

    Updates to TRACK_TEST and TRACK_VISION Computer Programs by Dragoslav Nikezic, Jelena M. Stajic, Kwan Ngok Yu

    Published 2021-02-01
    “…Discrepancies were within ~10% and <14% for incident alpha-particle energies of 1 MeV and >1 MeV, respectively. …”
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    Article
  11. 311

    The efficiency of gas-filled surge arresters in the environment contaminated by non-ionizing radiation of fusion reactors by Aranđelović Nemanja M., Nikezić Dušan P., Ramadani Uzahir R., Lazović Ivan M., Mirkov Nikola S., Osmokrović Predrag V.

    Published 2022-01-01
    “…For the efficiency of the flexible model, it was found to be slightly less than 40% (and to be achieved by the application of alpha particle radiation). Since neither of these efficiencies guarantee reliable operation of the gas-filled surge arrester, it was concluded that essential electronics in the vicinity of the fusion generator must be protected. …”
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    Article
  12. 312

    Spatial structure of the plasma sheet boundary layer at distances greater than 180 R<sub>E</sub> as derived from energetic particle measurements on GEOTAIL by D. V. Sarafopoulos, E. T. Sarris, V. Angelopoulos, T. Yamamoto, S. Kokubun

    Published 1997-10-01
    “…Second, if we consider the same energy level of energetic particles, then the H<sup>+</sup> layer is confined within that of the energetic electron, the He<sup>++</sup> layer is confined within that of the proton, and the oxygen layer is confined within the alpha particle layer. Third, whenever the energetic electrons show higher fluxes inside the plasma sheet as compared to those at the boundary layer, their angular distribution is isotropic irrespective of the Earthward or tailward character of fluxes, suggesting a closed field line topology.…”
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  13. 313

    Sea container inspection with tagged neutrons by Pérot Bertrand, Carasco Cédric, Eléon Cyrille, Bernard Sébastien, Sardet Alix, El Kanawati Wassila, Deyglun Clément, Perret Grégory, Sannié Guillaume, Valkovic Vladivoj, Sudac Davorin, Obhodas Jasmina, Moretto Sandra, Nebbia Giancarlo, Fontana Cristiano, Pino Felix, Donzella Antonietta, Zenoni Aldo, Iovene Alessandro, Tintori Carlo, Moszynski Marek, Gierlik Michal

    Published 2021-01-01
    “…Fast 14 MeV neutrons are produced by a portable generator with the t(d, n)α fusion reaction, and tagged in both direction and time thanks to the alpha particle detection. This Associated Particle Technique (APT) allows focusing inspection on specific areas of interest in the containers, previously identified as containing suspicious items with X-ray radiographic scanners or radiation portal monitors. …”
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    Article
  14. 314

    Recent preclinical and clinical advances in radioimmunotherapy for non-Hodgkin’s lymphoma by Hiroki Goto, Yoshioki Shiraishi, Seiji Okada

    Published 2024-02-01
    “…RIT is constantly evolving with the identification of novel targets and novel therapeutic strategies using newer radionuclides such as alpha-particle isotopes. Alpha-particles show very short path lengths and high linear energy transfer. …”
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    Article
  15. 315

    Alpha Radiation-Induced Luminescence by Am-241 in Aqueous Nitric Acid Solution by Thomas Kerst, Rikard Malmbeck, Nidhu lal Banik, Juha Toivonen

    Published 2019-04-01
    “…When exposed to air, alpha particles cause the production of light by exciting the molecules surrounding them. …”
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  16. 316

    Dosimetric impact of Ac-227 in accelerator-produced Ac-225 for alpha-emitter radiopharmaceutical therapy of patients with hematological malignancies: a pharmacokinetic modeling ana... by George Sgouros, Bin He, Nitya Ray, Dale L. Ludwig, Eric C. Frey

    Published 2021-08-01
    “…Abstract Background Actinium-225 is an alpha-particle emitter under investigation for use in radiopharmaceutical therapy. …”
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    Article
  17. 317

    Effect of the Synthesis Conditions on the Morphology, Luminescence and Scintillation Properties of a New Light Scintillation Material Li<sub>2</sub>CaSiO<sub>4</sub>:Eu<sup>2+</sup... by Ilia Komendo, Vitaly Mechinsky, Andrei Fedorov, Georgy Dosovitskiy, Victor Schukin, Daria Kuznetsova, Marina Zykova, Yury Velikodny, Mikhail Korjik

    Published 2022-08-01
    “…These properties and the transparency in the visible spectrum make it possible to produce scintillation screens with a coating of Li<sub>2</sub>CaSiO<sub>4</sub> for detecting neutrons, alpha particles and low-energy beta radiation. The low Z<sub>eff</sub> (~15) of this compound makes it less sensitive to gamma rays. …”
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    Article
  18. 318

    Measurement of low-ppm mixing ratios of water vapor in the upper troposphere and lower stratosphere using chemical ionization mass spectrometry by T. D. Thornberry, A. W. Rollins, R. S. Gao, L. A. Watts, S. J. Ciciora, R. J. McLaughlin, C. Voigt, B. Hall, D. W. Fahey

    Published 2013-06-01
    “…A low-pressure flow of sample air passes through an ionization volume containing an &alpha;-particle radiation source, resulting in a cascade of ion-molecule reactions that produce hydronium ions (H<sub>3</sub>O<sup>+</sup>) from ambient H<sub>2</sub>O. …”
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    Article
  19. 319

    Comparison of Local and Systemic DTPA Treatment Efficacy According to Actinide Physicochemical Properties Following Lung or Wound Contamination in the Rat by Nina M. Griffiths, Anne Van der Meeren, Olivier Grémy

    Published 2021-03-01
    “…Purpose: In cases of occupational accidents in nuclear facilities or subsequent to terrorist activities, the most likely routes of internal contamination with alpha-particle emitting actinides, such as plutonium (Pu) and americium (Am), are by inhalation or following wounding. …”
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    Article
  20. 320

    Oxidation of <i>p</i>-[<sup>125</sup>I]Iodobenzoic Acid and <i>p</i>-[<sup>211</sup>At]Astatobenzoic Acid Derivatives and Evaluation In Vivo by Yawen Li, Ming-Kuan Chyan, Donald K. Hamlin, Holly Nguyen, Eva Corey, D. Scott Wilbur

    Published 2022-09-01
    “…The alpha particle-emitting radionuclide astatine-211 (<sup>211</sup>At) is of interest for targeted radiotherapy; however, low in vivo stability of many <sup>211</sup>At-labeled cancer-targeting molecules has limited its potential. …”
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    Article