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181
Detector Dead Time Determination and Optimal Counting Rate for a Detector Near a Spallation Source or a Subcritical Multiplying System
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. …”
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182
Radiation Effects in Nuclear Ceramics
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. …”
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183
Quantitative assessment of brain metabolism in mice using non-contrast MRI at 11.7T
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. …”
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184
Effective Atomic Number Determination of Rare Earth Oxides with Scattering Intensity Ratio
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. …”
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185
DETERMINATION OF WATER QUALITY IN SPRINGS OF EKATERINBURG CITY AND SVERDLOVSK OBLAST
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. …”
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186
Calculation of Lead-Iron Double-Layer Thickness for Gamma-Ray Shielding by MATLAB Program
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. …”
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187
Levothyroxine malabsorption following sleeve gastrectomy
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. …”
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188
Britain’s Safety Arguments: French Nuclear Testing in Algeria duringNigerian Decolonisation (1959-60)
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. …”
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189
Discoloration Effects of High-Dose γ-Irradiation and Long-Term Thermal Aging of (U)HMW-PE
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. …”
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190
Antibiotic, Pesticide, and Microbial Contaminants of Honey: Human Health Hazards
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. …”
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191
Identification of meibomian gland testosterone metabolites produced by tissue-intrinsic intracrine deactivation activity
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. …”
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192
On Some Fundamental Peculiarities of the Traveling Wave Reactor
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. …”
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193
Splenectomy for Solitary Splenic Metastasis in Recurrent Papillary Thyroid Cancer. A Case Report and Literature Review
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. …”
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194
Tritium Separation and Purification Technology of Low Level Wastewater
Published 2025-02-01“…This work conducted the first radioactive thermal trial for tritium separation and purification from the real low-level tritiated wastewater. …”
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195
Carbonate Chemistry and Isotope Characteristics of Groundwater of Ljubljansko Polje and Ljubljansko Barje Aquifers in Slovenia
Published 2013-01-01“…Four groups of groundwater were identified: (1) Ljubljansko polje aquifer, with higher Ca2+ values, as limestone predominates in its recharge area, (2) northern part of Ljubljansko Barje aquifer, with prevailing dolomite in its recharge area, (3) central part of Ljubljansko Barje aquifer, which lies below surface cover of impermeable clay and is poor in carbonate, and (4) Brest and Iški vršaj aquifer in the southern part of Ljubljansko Barje with higher Mg2+ in groundwater and dolomite prevailing in its recharge area. The radioactive isotope tritium was also used to estimate the age of groundwater. …”
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196
Strains, Mechanism, and Perspective: Salmonella-Based Cancer Therapy
Published 2016-01-01“…Furthermore, bacterial clinical treatments for cancer have been improved by combination with other therapeutic methods such as chemotherapeutic drugs and radioactive agents. Synthetic biology techniques have also driven the development of new bacterial-based cancer therapies. …”
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197
Annexin A5–Functionalized Nanoparticle for Multimodal Imaging of Cell Death
Published 2013-05-01“…In contrast, there was relatively low signal in the corresponding tissues of control mice. Moreover, the radioactive signal from 111 In-labeled annexin A5–CCPM colocalized with its fluorescence signal, and both signals were confined to regions of dying cells. 111 In-labeled annexin A5–CCPM allows visualization of cell death by both nuclear and optical techniques at the whole-body level as well as at the microscopic level. …”
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198
Dose and risk assessment of radon in three rooms with varying ventilation levels using RESRAD-BIULD software
Published 2024-01-01“…Radon, a radioactive gas, poses a significant health risk when accumulated in indoor environments. …”
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199
Design and Analysis of Nuclear Transportation Cask Using Phase Changing Material
Published 2025-01-01“…In the nuclear sector, secure transportation of radioactive materials is crucial in the nuclear sector, and cask design and analysis are crucial for maintaining fuel integrity. …”
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200
Insight on intrusion behavior of compacted bentonite with accessory-mineral ring: a modelling approach
Published 2025-01-01“…Investigating the intrusion behavior of buffer/backfill materials is a critical aspect in the design of high-level radioactive waste (HLW) disposal repositories. This study proposes an intrusion model that accounts for the influence of the accessory-mineral ring and refines it by incorporating the specimen saturation process. …”
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