Showing 241 - 260 results of 371 for search '"radioactivity"', query time: 0.04s Refine Results
  1. 241

    Plutonium in the Arctic Marine Environment — A Short Review by Lindis Skipperud

    Published 2004-01-01
    “…In Kara Sea sites, such perturbations have been observed as a result of underwater weapons tests at Chernaya Bay, dumped radioactive waste in Novaya Zemlya, and terrestrial runoff from the Ob and Yenisey Rivers. …”
    Get full text
    Article
  2. 242

    Enhancing Resilience through Nuclear Emergency Preparedness at El Dabaa Site by Waad Saleh, Juyoul Kim

    Published 2024-01-01
    “…Over a span of ten years, comprehensive meteorological data were meticulously analyzed to assess the dispersion of radioactive substances within a 40-kilometer radius across all four seasons. …”
    Get full text
    Article
  3. 243

    Design Change and Operational Consideration of the HVAC System during Nuclear Power Plant Decommissioning by Ho-Jin Jeon, Chang-Lak Kim

    Published 2024-01-01
    “…The heating, ventilation, and air conditioning (HVAC) system plays a crucial role in ensuring the safety of workers and preventing the release of gaseous radioactive materials into the environment during the decommissioning of a nuclear power plant (NPP). …”
    Get full text
    Article
  4. 244

    Detector Dead Time Determination and Optimal Counting Rate for a Detector Near a Spallation Source or a Subcritical Multiplying System by V. Bécares, J. Blázquez

    Published 2012-01-01
    “…The operation of accelerator-driven systems or spallation sources requires the monitoring of intense neutron fluxes, which may be billions-fold more intense than the fluxes obtained with usual radioactive sources. If a neutron detector is placed near a very intense source, it can become saturated because of detector dead time. …”
    Get full text
    Article
  5. 245

    Radiation Effects in Nuclear Ceramics by L. Thomé, S. Moll, A. Debelle, F. Garrido, G. Sattonnay, J. Jagielski

    Published 2012-01-01
    “…In this latter field, ceramics can be used as immobilization forms for radioactive wastes, inert fuel matrices for actinide transmutation, cladding materials for gas-cooled fission reactors, and structural components for fusion reactors. …”
    Get full text
    Article
  6. 246

    Quantitative assessment of brain metabolism in mice using non-contrast MRI at 11.7T by Xiuli Yang, Yuguo Li, Hanzhang Lu, Zhiliang Wei

    Published 2025-06-01
    “…Positron emission tomography (PET) is the gold standard for measuring metabolic rates using radioactive tracers. However, its application in preclinical studies, particularly with rodent animals, is constrained by the need for arterial input function measurements and on-site cyclotron facilities for tracer preparation. …”
    Get full text
    Article
  7. 247

    Effective Atomic Number Determination of Rare Earth Oxides with Scattering Intensity Ratio by A. Turşucu, D. Demir, P. Önder

    Published 2013-01-01
    “…Effective atomic numbers () of scientific samples (rare earth) were determined experimentally by scattering of 59.54 keV gamma photons from 5 Ci 241Am annular radioactive source. The scattered gamma photons were collected by using a high-resolution HPGe semiconductor detector placed at to the incident beam. …”
    Get full text
    Article
  8. 248

    Single-cell transcriptomics in thyroid eye disease by Sofia Ahsanuddin, Albert Y. Wu

    Published 2024-12-01
    “…Current treatment modalities for TED include systemic glucocorticoids, thioamides, methimazole, teprotumumab, beta-blockers, and radioactive iodine; however, it has been reported that up to 10%–20% of TED patients relapse after treatment withdrawal and 20%–30% are unresponsive to mainstay therapy for reasons that have yet to be more clearly elucidated. …”
    Get full text
    Article
  9. 249

    Migration of Gas in Water Saturated Clays by Coupled Hydraulic-Mechanical Model by Aliaksei Pazdniakou, Magdalena Dymitrowska

    Published 2018-01-01
    “…Understanding the gas migration in highly water saturated sedimentary rock formations is of great importance for safety of radioactive waste repositories which may use these host rocks as barrier. …”
    Get full text
    Article
  10. 250

    DETERMINATION OF WATER QUALITY IN SPRINGS OF EKATERINBURG CITY AND SVERDLOVSK OBLAST by Vladimir S. Semenishchev, Svetlana M. Titova, Anna V. Voronina

    Published 2020-10-01
    “…We determined that water in only 7 springs (22%) fully met the requirements of sanitary norms from the point of view of content of chemical and radioactive pollutants. In 17 cases, water did not meet the requirements of the norms for the chemical factor, in 4 cases – for the radiation factor, and in 3 cases – for both the chemical and radiation factors. …”
    Article
  11. 251

    Calculation of Lead-Iron Double-Layer Thickness for Gamma-Ray Shielding by MATLAB Program by Sarai Lekchaum, Kitsakorn Locharoenrat

    Published 2017-01-01
    “…This contribution is aimed at designing the optimal thickness of lead-iron double-layer container to store a radioactive waste releasing the photon energy at 1.3325 MeV and initial radiation intensity at 100 mSv/hr using the optimization design by MATLAB software. …”
    Get full text
    Article
  12. 252

    Levothyroxine malabsorption following sleeve gastrectomy by Elodie Gruneisen, Ji Wei Yang, Melissa-Rosina Pasqua

    Published 2025-01-01
    “…We present a 47-year-old woman with class III obesity and a history of papillary thyroid cancer, with an excellent biochemical and structural response after total thyroidectomy and radioactive iodine. She underwent sleeve gastrectomy 3 years later and developed refractory hypothyroidism despite taking high doses of oral LT4 and ensuring compliance. …”
    Get full text
    Article
  13. 253

    Britain’s Safety Arguments: French Nuclear Testing in Algeria duringNigerian Decolonisation (1959-60) by Chloë Mayoux

    Published 2024-10-01
    “… France’s decision to hold its first nuclear tests in the Algerian Sahara, at a time when the question of the health effects of radioactive fallout was a matter of scientific controversy, gave Africans political as well as scientific arguments to oppose French policy. …”
    Get full text
    Article
  14. 254

    Removal of Decontaminating Agent from Aqueous Solution Using Microporous and Mesoporous Materials: Activated Carbon as an Effective Adsorbent by Narasimhan Gokulakrishnan, Arumugam Pandurangan, Pradeep Kumar Sinha

    Published 2008-05-01
    “…This forms complexes with radioactive cations, thereby impeding their removal by conventional techniques. …”
    Get full text
    Article
  15. 255

    Discoloration Effects of High-Dose γ-Irradiation and Long-Term Thermal Aging of (U)HMW-PE by Anja Kömmling, Emmanouil Chatzigiannakis, Jörg Beckmann, Volker Wachtendorf, Kerstin von der Ehe, Ulrike Braun, Matthias Jaunich, Ulrich Schade, Dietmar Wolff

    Published 2017-01-01
    “…Two polyethylene types with ultra-high (UHMW-PE) and high molecular weight (HMW-PE) used as neutron radiation shielding materials in casks for radioactive waste were irradiated with doses up to 600 kGy using a 60Co gamma source. …”
    Get full text
    Article
  16. 256

    Antibiotic, Pesticide, and Microbial Contaminants of Honey: Human Health Hazards by Noori Al-Waili, Khelod Salom, Ahmed Al-Ghamdi, Mohammad Javed Ansari

    Published 2012-01-01
    “…Honey and other bee products are polluted by pesticides, heavy metals, bacteria and radioactive materials. Pesticide residues cause genetic mutations and cellular degradation and presence of antibiotics might increase resistant human or animal's pathogens. …”
    Get full text
    Article
  17. 257

    Identification of meibomian gland testosterone metabolites produced by tissue-intrinsic intracrine deactivation activity by Khanh Tien Nguyen Pham, Takahito Miyake, Tomo Suzuki, Shigeru Kinoshita, Yuki Hamada, Hikari Uehara, Mamiko Machida, Takeshi Nakajima, Emi Hasegawa, Masao Doi

    Published 2025-02-01
    “…Here, we performed radioactive tracer studies in combination with pharmacological enzyme inhibition, followed by targeted liquid chromatography-tandem mass spectrometry (LC-MS/MS) analysis, and found three androgen metabolites—androstanedione, androsterone, and epiandrosterone—in mouse and human meibomian glands. …”
    Get full text
    Article
  18. 258

    On Some Fundamental Peculiarities of the Traveling Wave Reactor by V. D. Rusov, V. A. Tarasov, I. V. Sharph, V. N. Vashchenko, E. P. Linnik, T. N. Zelentsova, M. E. Beglaryan, S. A. Chernegenko, S. I. Kosenko, V. P. Smolyar

    Published 2015-01-01
    “…On the basis of the condition for nuclear burning wave existence in the neutron-multiplying media (U-Pu and Th-U cycles) we show the possibility of surmounting the so-called dpa-parameter problem and suggest an algorithm of the optimal nuclear burning wave mode adjustment, which is supposed to yield the wave parameters (fluence/neutron flux, width and speed of nuclear burning wave) that satisfy the dpa-condition associated with the tolerable level of the reactor materials radioactive stability, in particular that of the cladding materials. …”
    Get full text
    Article
  19. 259

    Splenectomy for Solitary Splenic Metastasis in Recurrent Papillary Thyroid Cancer. A Case Report and Literature Review by Antonio Maffuz-Aziz, Gabriel Garnica, Silvia López-Hernández, Janet Pineda-Diaz, Javier Baquera-Heredia, Patricia López-Jiménez

    Published 2020-01-01
    “…Herein, we present a 52-year-old male, who developed spleen metastases, 2.4 years after total thyroidectomy and central neck dissection followed by radioactive iodine ablation and seven months after treatment with sorafenib for lung metastases. …”
    Get full text
    Article
  20. 260

    Tritium Separation and Purification Technology of Low Level Wastewater by Shikai GUO, Feng CUI, Xuejun HAN

    Published 2025-02-01
    “…This work conducted the first radioactive thermal trial for tritium separation and purification from the real low-level tritiated wastewater. …”
    Get full text
    Article