Measurements on the depth of penetration of light (0.35--1.0 microgram) in tissue.

abstract：:The non-random distribution of DNA breakage in pulsed-field gel electrophoresis (PFGE) experiments poses a problem of proper subtraction of the background damage to obtain a fragment-size distribution due to radiation only. As been pointed out by various authors, a naive bin-to-bin subtraction of the background signal...

journal_title：Radiation and environmental biophysics

authors： Ponomarev AL,Belli M,Hahnfeldt PJ,Hlatky L,Sachs RK,Cucinotta FA

更新日期：2007-06-01 00:00:00

abstract：:Many experimental studies are carried out to compare biological effectiveness of high dose rate (HDR) with that of low dose rate (LDR). The rational for this is the uncertainty regarding the value of the dose rate effectiveness factor (DREF) used in radiological protection. While a LDR is defined as 0.1 mGy/min or low...

journal_title：Radiation and environmental biophysics

authors： Olofsson D,Cheng L,Fernández RB,Płódowska M,Riego ML,Akuwudike P,Lisowska H,Lundholm L,Wojcik A

更新日期：2020-08-01 00:00:00

abstract：:Human female lymphocytes were exposed to X-rays in vitro at 7 different doses between 40-280 R. In 830 metaphases chromosome analyses were carried out with either conventional staining or G-banding, respectively. 486 breakpoints are non-randomly distributed between chromosomes and chromosome arms. An excess of lesions...

journal_title：Radiation and environmental biophysics

authors： Bauchinger M,Götz G

更新日期：1979-01-01 00:00:00

abstract：:The model of radiocaesium transfer to sheep presented by Galer et al. provides reliable predictions only for sheep of a similar body weight to those used in the development of the model (approximately 30 kg). To extend the applicability of the model, it was necessary to re-parameterise it in terms of activity concentr...

journal_title：Radiation and environmental biophysics

authors： Crout NM,Beresford NA,Howard BJ,Mayes RW,Assimakopoulos PA,Vandecasteele CM

更新日期：1996-02-01 00:00:00

abstract：:Thorough studies of 28 water bodies, predominantly lakes from the younger moraine area of Schleswig-Holstein, Northern Germany but also some peat bog waters in Niedersachsen, Northern Germany and lake Balaton in Hungary, showed the presence of at least six redox systems: NO3-/NO2-; NO3-/NH4+; NO2-/NH4+; So/HS-; So/H2S...

journal_title：Radiation and environmental biophysics

authors： David R

更新日期：1986-01-01 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：: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：:Because of the increasing application of ionizing radiation in medicine, quantitative data on effects of low-dose radiation are needed to optimize radiation protection, particularly with respect to cataract development. Using mice as mammalian animal model, we applied a single dose of 0, 0.063, 0.125 and 0.5 Gy at 10 ...

journal_title：Radiation and environmental biophysics

authors： Dalke C,Neff F,Bains SK,Bright S,Lord D,Reitmeir P,Rößler U,Samaga D,Unger K,Braselmann H,Wagner F,Greiter M,Gomolka M,Hornhardt S,Kunze S,Kempf SJ,Garrett L,Hölter SM,Wurst W,Rosemann M,Azimzadeh O,Tapio S,Au

更新日期：2018-05-01 00:00:00

abstract：:In this study, thyroid cancer incidence (follow-up period: 1991-2001) has been analyzed, including persons who were exposed as children at an age between 0 and 17 years and who are living in the Bryansk oblast, the worst contaminated area of Russia after the Chernobyl accident. According to the census of 1989, the pop...

journal_title：Radiation and environmental biophysics

authors： Ivanov VK,Gorski AI,Tsyb AF,Maksioutov MA,Tumanov KA,Vlasov OK

更新日期：2006-05-01 00:00:00

abstract：:A Monte Carlo model is presented to study details of the energy deposition inside tracks of heavy charged particles in water vapor. The input data for most of the calculations based on the binary encounter approximation are double-differential cross sections for electron emission after heavy-ion impact. The paths of t...

journal_title：Radiation and environmental biophysics

authors： Krämer M,Kraft G

更新日期：1994-01-01 00:00:00

abstract：:The potential of heavy ion therapy for clinical use in cancer therapy stems from the biological parameters of heavy charged particles and their precise dose localization. Biologically, carbon, neon, and other heavy ion beams (up to about silicon) are clinically useful in overcoming the radioresistance of hypoxic tumor...

journal_title：Radiation and environmental biophysics

authors： Castro JR

更新日期：1995-03-01 00:00:00

abstract：:Activity catalysing double-strand DNA recombination has been investigated in human tumour cell lines using an in vitro assay in which nuclear extracts from tumour cells are used to catalyse homologous recombination between deletion plasmids. The cell lines investigated showed comparable constitutive levels of recombin...

journal_title：Radiation and environmental biophysics

authors： Lehnert S,Chow TY

更新日期：1997-02-01 00:00:00

abstract：:Two data groups were analyzed: (1) the exposure rate in the former Czechoslovakia after the Chernobyl accident in 1986, and (2) the decrease of beta activity of an atmospheric fallout sample taken in Bratislava during 24 h on 30 May 1965. Both quantities decreased with the first power of time. This pattern of decrease...

journal_title：Radiation and environmental biophysics

authors： Dolejs J

更新日期：2005-05-01 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：:The problem of expressing cumulative detrimental effect of radiation exposure is revisited. All conventionally used and computationally complex lifetime or time-integrated risks are based on current population and health statistical data, with unknown future secular trends, that are projected far into the future. It i...

journal_title：Radiation and environmental biophysics

authors： Ulanowski A,Kaiser JC,Schneider U,Walsh L

更新日期：2019-08-01 00:00:00

abstract：:Age-specific and cumulative mortality rates are presented for different cancer sites from 1970 until 1988 for the 11 individual federal states of West Germany (FRG). Sex- and age-specific evaluations are performed and temporal and regional trends in mortality from different cancer sites are revealed. In the FRG there ...

journal_title：Radiation and environmental biophysics

authors： Kvasnicka J,Kvasnicka E,Schnadt H,Geuer W,Havers W,Breckow J

更新日期：1993-01-01 00:00:00

abstract：:A human total-body counter was designed and built with two 20 X 10 cm NaI (Tl) crystals suspended over an "isoresponse surface" upon which the subject reclines. This surface is curved from head to knee and from left to right, so that a gamma-ray emitting object is detected with equal efficiency when placed anywhere up...

journal_title：Radiation and environmental biophysics

authors： Lloyd RD,Mays CW,Taysum DH

更新日期：1979-04-30 00:00:00

abstract：:High steady-state transcriptional activity is essential for normal mitochondrial function. The requisite transcription rate is satisfied in part by high copy number of mitochondrial DNA (mtDNA). In the present study, we analyze mtDNA copy number by real-time PCR in nucleated blood cells from control mice and mice expo...

journal_title：Radiation and environmental biophysics

authors： Evdokimovsky EV,Ushakova TE,Kudriavtcev AA,Gaziev AI

更新日期：2011-03-01 00:00:00

abstract：:With a model system of pBR322 plasmid DNA solution in vitro, the dose effects of radiation-induced single- and double-strand breaks (SSB and DSB) were measured and DSB was distinguished into alpha- and beta-types. Under the condition of low scavenging capacity existing in the irradiated DNA solution, SSB and alpha DSB...

journal_title：Radiation and environmental biophysics

authors： Shao C,Yu Z,Saito M

更新日期：2000-06-01 00:00:00

abstract：:The main target of this work is to examine blood clearance and external exposure for 177Lu-DOTATATE compared with new emerging 177Lu-PSMA therapy. Blood clearance and radiation exposure of 31 patients treated with 5.5 ± 1.1 GBq 177Lu-DOTATATE were compared to those of 23 patients treated with 7.4 GBq 177Lu-PSMA. Dose ...

journal_title：Radiation and environmental biophysics

authors： Abuqbeitah M,Demir M,Uslu-Beşli L,Yeyin N,Sönmezoğlu K

更新日期：2018-03-01 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：:This study was undertaken to investigate the mechanism of chemical radiosensitization by halogenated bases incorporated into DNA. Radiation-induced base and sugar-phosphate backbone damage to 5-bromouridine-5'-monophosphate (5-BrUMP) was monitored using a flow system connected in series with a recording spectrophotome...

journal_title：Radiation and environmental biophysics

authors： Greenstock CL,Whitehouse RP

更新日期：1992-01-01 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：:Total body Irradiation (TBI) is often used for conditioning, prior to bone marrow transplantation. Doses of 8-14 Gy in 1-8 fractions over 1-4 days are administered using low dose rate external beam radiotherapy (EBRT). When necessary, consolidation EBRT using conventional doses, fractionation and dose rate is given. T...

journal_title：Radiation and environmental biophysics

authors： Nevelsky A,Bar-Deroma R,Kuten A

更新日期：2009-11-01 00:00:00

abstract：:The work reported here was originally motivated by a discussion of Monte Carlo computer codes for electron transport in water given in Report No. 130 by the National Council on Radiation Protection and Measurements (NCRP). It was pointed out (correctly) that a published depth-dose distribution calculated by the Oak Ri...

journal_title：Radiation and environmental biophysics

authors： Semenenko VA,Turner JE,Borak TB

更新日期：2003-10-01 00:00:00

abstract：:The Sax-Markov binary eurejoining/misrejoining (SMBE) model is a stochastic representation of Sax's breakage-and-reunion mechanism of misrejoining DNA double-strand breaks (DSBs). In this model, to approximate DSB misrejoining probabilities that decrease with increasing distance, the nucleus is treated as a collection...

journal_title：Radiation and environmental biophysics

authors： Radivoyevitch T

更新日期：2000-12-01 00:00:00

abstract：:Those working in interventional cardiology are exposed to varying radiation doses during diagnostic and interventional procedures. The work presented in this paper aimed to monitor the effective doses received by different categories of medical staff members practicing interventional cardiology procedures including se...

journal_title：Radiation and environmental biophysics

authors： Ghany HAA,Diab HM,Salah A,Taha AA

更新日期：2020-11-01 00:00:00

abstract：:The sulphur-containing radioprotectors mercaptoethylamine (MEA), aminoethylisothiourea (AET), 2- aminothiazoline , 4-oxo-2- aminothiazoline , and S-S-3- oxapentane -1,5- diisothiourea , and the radioprotective biogenic amines serotonin, histamine, and dopamine, caused the elevation of cAMP content and intensified the ...

journal_title：Radiation and environmental biophysics

authors： Sobolev AS,Chirkov YuYu,Tertov VV,Kazarov AR

更新日期：1984-01-01 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