Ionizing radiation-induced structural modification of human red blood cells.

abstract：:Recent analyses of the Canadian fluoroscopy cohort study reported significantly increased radiation risks of mortality from ischemic heart diseases (IHD) with a linear dose-response adjusted for dose fractionation. This cohort includes 63,707 tuberculosis patients from Canada who were exposed to low-to-moderate dose f...

journal_title：Radiation and environmental biophysics

authors： Schöllnberger H,Kaiser JC,Eidemüller M,Zablotska LB

更新日期：2020-03-01 00:00:00

abstract：:The effects of single pulses and multiple pulses of 7 MV electrons on micronuclei (MN) induction in cytokinesis-blocked human peripheral blood lymphocytes (PBLs) were investigated over a wide range of dose rates per pulse (instantaneous dose rate). PBLs were exposed to graded doses of 2, 3, 4, 6, and 8 Gy of single el...

journal_title：Radiation and environmental biophysics

authors： Acharya S,Bhat NN,Joseph P,Sanjeev G,Sreedevi B,Narayana Y

更新日期：2011-05-01 00:00:00

abstract：:An LBO (Li2B4O7) walled ionization chamber was designed to monitor the epithermal neutron fluence in boron neutron capture therapy clinical irradiation. The thermal and epithermal neutron sensitivities of the device were evaluated using accelerator neutrons from the 9Be(d, n) reaction at a deuteron energy of 4 MeV (4 ...

journal_title：Radiation and environmental biophysics

authors： Endo S,Sato H,Shimazaki T,Nakajima E,Kotani K,Suda M,Hamano T,Kajimoto T,Tanaka K,Hoshi M

更新日期：2017-08-01 00:00:00

abstract：:Since the early 1990s, information on radiation-exposed populations other than those exposed from the Chernobyl accident in 1986 has become increasingly available for international scientific research. It is essential to understand how the cohorts of exposed populations have been defined and what mechanisms can be use...

journal_title：Radiation and environmental biophysics

authors： Winkelmann RA,Tretyakov FD,Startsev NV,Kolyado IB,Gusev BI,Grosche B,Storm HH,Hall P

更新日期：2002-03-01 00:00:00

abstract：:Large lung sections of humans of advanced adult age revealed a markedly nonuniform retention pattern of dense anthracotic particle aggregates, with an impressive accumulation of this material along pulmonary lymphatics, i.e. the deep (peribronchial), septal (perivenous) and superficial (pleural) networks. Conversely, ...

journal_title：Radiation and environmental biophysics

authors： Cottier H,Meister F,Zimmermann A,Kraft R,Burkhardt A,Gehr P,Poretti G

更新日期：1987-01-01 00:00:00

abstract：:The biological phenomena observed at low doses of ionizing radiation (adaptive response, bystander effects, genomic instability, etc.) are still not well understood. While at high irradiation doses, cellular death may be directly linked to DNA damage, at low doses, other cellular structures may be involved in what are...

journal_title：Radiation and environmental biophysics

authors： Cunha M,Testa E,Komova OV,Nasonova EA,Mel'nikova LA,Shmakova NL,Beuve M

更新日期：2016-03-01 00:00:00

abstract：:Simple, ellipsoidal geometries have long been the standard for estimating radiation dose rates in non-human biota (NHB). With the introduction of a regulatory protection standard that emphasizes protection of NHB as its own end point, there has been interest in improved models for the calculation of dose rates in NHB....

journal_title：Radiation and environmental biophysics

authors： Ruedig E,Caffrey E,Hess C,Higley K

更新日期：2014-08-01 00:00:00

abstract：:The major part of the liquid radioactive waste released by the Mayak Production Association (PA) radiochemical plant into the Techa river occurred in 1949-1951, but there is information on only one single radiochemical analysis of a water sample taken on 24 and 25 September 1951. These data are here used to assess the...

journal_title：Radiation and environmental biophysics

authors： Mokrov YG

更新日期：2003-04-01 00:00:00

abstract：:Dose conversion coefficients (DCCs) for assessment of internal and external radiation exposures to terrestrial and aquatic biota are compiled for 75 radionuclides, for 14 terrestrial and 22 aquatic reference organisms. DCC values for internal exposure are calculated based on a homogeneous distribution of the radionucl...

journal_title：Radiation and environmental biophysics

authors： Ulanovsky A,Pröhl G

更新日期：2008-04-01 00:00:00

abstract：:The effect of supplying three different stable iodine levels (about 70, 80, and 160 mg day-1) in the daily feed of four dairy cows has been studied for the excretion pattern of 131I. None of the different treatments had a statistically significant effect. A mean milk transfer coefficient of 0.015 +/- 0.001 d l-1 was d...

journal_title：Radiation and environmental biophysics

authors： Voigt G,Schotola C,Probstmeier G,Röhrmoser G

更新日期：1994-01-01 00:00:00

abstract：:Frequently knowledge of elemental content of human organs and tissues is required for a variety of applications. These can include brachytherapy and radiotherapy planning, radiation dosimetry and radiation protection. Revised reference values of chemical element mass fractions in normal and cancerous prostate tissues ...

journal_title：Radiation and environmental biophysics

authors： Zaichick V,Wynchank S

更新日期：2021-01-02 00:00:00

abstract：:The hypoxic cytotoxic effect of chlorpromazine towards E. coli B/r was observed to be dependent on temperature of incubation and irradiation. Increasing the temperature of incubation from ambient to 37 degrees C followed by irradiation revealed that the organisms showed radiosensitivity of a magnitude which was two to...

journal_title：Radiation and environmental biophysics

authors： Shenoy MA,Singh BB

更新日期：1985-01-01 00:00:00

abstract：:Responses of the S/S variant of the L5178Y murine leukemic lymphoblast, the photoreceptor cell of the rabbit retina and the lenticular epithelium of the rabbit to heavy ions (20Ne, 28Si, 40Ar and 56Fe) are described and discussed primarily from the standpoint of the need for a comprehensive theory of cellular radiosen...

journal_title：Radiation and environmental biophysics

authors： Lett JT,Cox AB,Bergtold DS

更新日期：1986-01-01 00:00:00

abstract：:Carrier-free 11C-labeled carbon monoxide was produced by proton irradiation of a nitrogen gas flow target via the 14N(p, alpha)11C process followed by on-line reduction of the predominantly formed 11C-carbon dioxide with a yield of 0.4 mCi/muAmin. After appropriate quality control about 2 mCi of carrier-free 11C-carbo...

journal_title：Radiation and environmental biophysics

authors： Weinreich R,Ritzl F,Feinendegen LE,Schnippering HG,Stöcklin G

更新日期：1975-12-04 00:00:00

abstract：:A number of approaches have been proposed to estimate the exposure of non-human biota to ionizing radiation. This paper reports an inter-comparison of the unweighted absorbed dose rates for the whole organism (compared as dose conversion coefficients, or DCCs) for both internal and external exposure, estimated by 11 o...

journal_title：Radiation and environmental biophysics

authors： Vives i Batlle J,Balonov M,Beaugelin-Seiller K,Beresford NA,Brown J,Cheng JJ,Copplestone D,Doi M,Filistovic V,Golikov V,Horyna J,Hosseini A,Howard BJ,Jones SR,Kamboj S,Kryshev A,Nedveckaite T,Olyslaegers G,Pröhl G,S

更新日期：2007-11-01 00:00:00

abstract：:The influence of microgravity on the repair of x-ray-induced DNA double-strand breaks was studied in the temperature-conditional repair mutant rad54-3 of diploid yeast Saccharomyces cerevisiae. Cells were exposed on the ground and kept at a low temperature until microgravity conditions were achieved. In orbit, they we...

journal_title：Radiation and environmental biophysics

authors： Pross HD,Kiefer J

更新日期：1999-07-01 00:00:00

abstract：:Among the various methods for studying the relative effects of transmutation and radiation of incorporated nuclides, simulation of beta radiation by external gamma exposure is of practical importance. Self-irradiation and mutual irradiation of the labeled cells cannot be neglected in any case. Furthermore, additional ...

journal_title：Radiation and environmental biophysics

authors： Hamann HJ,Irskens M

更新日期：1975-01-01 00:00:00

abstract：:Exposure to ionizing radiation has well-documented long-term effects on cancer rates and other health outcomes in humans. While in vitro experimental studies had demonstrated that the nature of some radiation effects depend on both total dose of the radiation and the dose rate (i.e., the pattern of dose distribution o...

journal_title：Radiation and environmental biophysics

authors： Sokolnikov M,Preston D,Stram DO

更新日期：2017-03-01 00:00:00

abstract：:In the process of developing a new dosimetry system for atomic bomb survivors in Hiroshima and Nagasaki (DS02), an intercomparison study between (152)Eu and (36)Cl measurements was proposed, to reconcile the discrepancy previously observed in the Hiroshima data between measurements and calculations of thermal neutron ...

journal_title：Radiation and environmental biophysics

authors： Hoshi M,Endo S,Tanaka K,Ishikawa M,Straume T,Komura K,Rühm W,Nolte E,Huber T,Nagashima Y,Seki R,Sasa K,Sueki K,Fukushima H,Egbert SD,Imanaka T

更新日期：2008-07-01 00:00:00

abstract：:One of the main purposes leading botanists to investigate the effects of ionizing radiations is to understand plant behaviour in space, where vegetal systems play an important role for nourishment, psychological support and functioning of life support systems. Ground-based experiments have been performed with particle...

journal_title：Radiation and environmental biophysics

authors： De Micco V,Arena C,Pignalosa D,Durante M

更新日期：2011-03-01 00:00:00

abstract：:Heavy charged particle therapy, started at research institutes three decades ago, is now on the verge of entering a clinical phase. This phase has resulted from the evolution and development of various beam delivery systems and techniques with existing research accelerators and with newly built accelerators. For the f...

journal_title：Radiation and environmental biophysics

authors： Blattmann H

更新日期：1992-01-01 00:00:00

abstract：:The main aim of this study was to investigate the dosimetric characteristics of the INTRABEAM ® system in the presence of air gaps between the surface of applicators (APs) and tumor bed. Additionally, the effect of tissue heterogeneities was another focus. Investigating the dosimetric characteristics of the INTRABEAM®...

journal_title：Radiation and environmental biophysics

authors： Tegaw EM,Gholami S,Omyan G,Geraily G

更新日期：2020-05-01 00:00:00

abstract：:This article describes the application of a simplified Bayesian method for estimation of doses from a mixed field using cytogenetic biological dosimetry, taking as an example neutron and gamma radiation emitted from the MARIA nuclear research reactor in Poland. The Bayesian approach is a good alternative to the common...

journal_title：Radiation and environmental biophysics

authors： Słonecka I,Łukasik K,Fornalski KW

更新日期：2019-03-01 00:00:00

abstract：:The potential mechanisms underlying the increase in serum iron concentration in gamma-irradiated mice were studied. The gamma irradiation dose used was 4 Gy, and cobalt-60 ((60)Co) source was used for the irradiation. The dose rate was 0.25 Gy/min. In the serum of irradiated mice, the concentration of ferrous ions dec...

journal_title：Radiation and environmental biophysics

authors： Xie LH,Zhang XH,Hu XD,Min XY,Zhou QF,Zhang HQ

更新日期：2016-03-01 00:00:00

abstract：:It is usually assumed that sparsely ionizing radiation produces randomly distributed DNA breakages. This seems to be supported by the finding that in some DNA fragments single-strand scissions occur uniformly at all nucleotide sites, regardless of sequence. We performed experiments on two DNA fragments of about 300 bp...

journal_title：Radiation and environmental biophysics

authors： Barone F,Belli M,Mazzei F

更新日期：1994-01-01 00:00:00

abstract：:137Cs from global fallout of nuclear weapon testings in the 1950s and 1960s was determined in successive layers (0-30 cm) of eight undisturbed grassland soils in Bavaria, Germany. The maximum activity concentration was found in soil layers between 4 and 15 cm below the surface. Using the vertical distribution of the c...

journal_title：Radiation and environmental biophysics

authors： Schimmack W,Steindl H,Bunzl K

更新日期：1998-04-01 00:00:00

abstract：:The development of biophysical models of chromosome aberration induction has undergone considerable improvements in the past few years. This is mainly due to the development of new experimental techniques, such as fluorescence in situ hybridization (FISH) and premature chromosome condensation (PCC), and to a better kn...

journal_title：Radiation and environmental biophysics

authors： Ottolenghi A,Ballarini F,Merzagora M

更新日期：1999-05-01 00:00:00

abstract：:The Auger electron emitter 123I was examined in the form of 4-[123I]iodoantipyrine and as [123I]NaI for its effectiveness in killing cells of different sensitivity to photon irradiation. Micronucleus assays showed that 4-[123I]iodoantipyrine is 2-3 times more effective in cell inactivation than [123I]NaI. This can be ...

journal_title：Radiation and environmental biophysics

authors： Smit BS,Slabbert JP,Reinecke SA,Böhm L

更新日期：2001-03-01 00:00:00

abstract：:The radiation-induced process of strand breaks on pBR322 plasmid DNA in aqueous solution for different energy electrons was studied by Monte Carlo simulation. Assumptions of induction mechanisms of single- and double-strand breaks (SSBs and DSBs) used in the simulation are that SSB is induced by OH or H reaction with ...

journal_title：Radiation and environmental biophysics

authors： Watanabe R,Saito K

更新日期：2002-09-01 00:00:00

abstract：:Monte Carlo codes have been used for approximately 80 years to solve various problems in medical physics. In this paper, the importance of the MCNPX code in treatment planning is highlighted. As illustrative examples of the role of MCNPX in this field, some dosimetric parameters, isodose distribution curves, and figur...

journal_title：Radiation and environmental biophysics

authors： Vahabi SM,Shamsaie Zafarghandi M

更新日期：2020-05-01 00:00:00