Results 41 to 50 of about 56,774 (290)
Fast neutrons and gamma rays shielding properties for some nylon composite [PDF]
E3S Web of ConferencesIn this study, The removal parameters of macroscopic fast neutron cross-section, linear gamma ray attenuation, mean free path, and half-value layer (half-value thickness) were calculated for a polymer composite containing nylon 6 as a base material and ...
Kareem Dawood Salwah +3 more
doaj +1 more source
Monte Carlo calculation of shielding properties of newly developed heavy concretes for megavoltage photon beam spectra used in radiation therapy [PDF]
Iranian Journal of Medical Physics, 2016 Introduction: Globally, the need for radiotherapy as a part of cancer management increases every year. Thus, the shielding for megavoltage radiotherapy rooms is of great importance. Materials and Methods: In the present study, 14 types of developed high-
Rezvan Khaldari +2 more
doaj +1 more source
Calculation and Research of γ-ray Air Attenuation Coefficient at Different Altitudes
Journal of Isotopes, 2021 In the process of aviation gamma dose rate measurement, due to the large altitude span, the gamma-ray air attenuation coefficient will be affected by altitude, temperature, air pressure and air density, so corresponding corrections are needed.
WEI Kaidi;XU Yang;GAO Fei;LIU Chuanfeng;HANG Zhongbin;WANG Zilin
doaj +1 more source
CT Role in the Assessment of Existence of Breast Cancerous Cells [PDF]
Journal of Biomedical Physics and Engineering, 2020 Background: Application of CT- scanning image information and radiation physical characteristics of the biomaterials are two measurable assays for presenting modified cells.
P Mehnati, M Jafari Tirtash, M Ghavami
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Attenuation coefficient estimation of the healthy human thyroid in vivo
, 2015 Previous studies have demonstrated that attenuation coefficients can be useful towards characterizing thyroid tissues. In this work, ultrasonic attenuation coefficients were estimated from healthy human thyroids in vivo using a clinical scanner.
Cueva T. +4 more
core +2 more sources
Study of some γ-ray attenuation parameters for new shielding materials composed of nano ZnO blended with high density polyethylene [PDF]
Nuclear Technology and Radiation Protection, 2019 The extensive utilization of radiation is rapidly developing worldwide involving abundant fields like medical, industrial, research, and nuclear facilities.
Alsayed Zainab +4 more
doaj +1 more source
Case Studies in Construction Materials, 2020 Production of electricity from nuclear fission – or fusion in nuclear power plants is becoming an attractive solution to face the scarcity in different natural energy resources.
Ali G. Hassan +4 more
doaj +1 more source
KDM7A and KDM1A inhibition suppresses tumour promoting pathways in prostate cancer
Molecular Oncology, EarlyView.Treatment resistance is a major challenge for patients with advanced prostate cancer. This study examined an alternative approach to target the major prostate cancer‐promoting pathway by targeting epigenetic factors, whose levels are higher in tumours.
Jennie N Jeyapalan +16 more
wiley +1 more source
Molecular Oncology, EarlyView.Both cg12821679MAPRE3 methylation and MAPRE3 expression are significantly associated with overall survival (OS) of non‐small cell lung cancer. Meanwhile, MAPRE3 expression significantly modified the effect of smoking cessation on OS. Smoking cessation benefits OS merely for patients with high MAPRE3 expression.
Chao Chen +14 more
wiley +1 more source
Molecular Oncology, EarlyView.We identify USP29 as the only DUB mirroring CA9 expression, a marker of hypoxia and HIF pathway activation associated with PCA aggressiveness. USP29 stabilizes HIF‐1α and HIF‐2α via a noncanonical mechanism that is independent of PHD/pVHL activity yet relies on proteasomal regulation, establishing USP29 as a previously unrecognized regulator of hypoxic
Amelie S Schober +16 more
wiley +1 more source