The effect of radiation in combination with carcinogens on the growth of normal urothelium in explant culture.

abstract：:The method of iteratively reweighted least squares for the regression analysis of Poisson distributed chromosome aberration data is reviewed in the context of other fit procedures used in the cytogenetic literature. As an application of the resulting regression curves methods for calculating confidence intervals on do...

journal_title：Radiation and environmental biophysics

authors： Merkle W

更新日期：1983-01-01 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：:In this study, temporal variations of indoor radon concentrations in Bulgaria were investigated. The radon concentrations were measured by nuclear track detectors as part of the Bulgarian National Survey, performed in the dwellings of 28 regional districts. The detectors were exposed through a year in two consecutive ...

journal_title：Radiation and environmental biophysics

authors： Ivanova K,Stojanovska Z

更新日期：2019-08-01 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 risk of cancer after diagnostic X-rays received as fetus or during early childhood has been investigated in many studies. The results of recent epidemiological studies are summarized in a present systematic review. The strategies for literature search, inclusion criteria, and items for study quality assessment wer...

journal_title：Radiation and environmental biophysics

authors： Schulze-Rath R,Hammer GP,Blettner M

更新日期：2008-07-01 00:00:00

abstract：:Survival and G2 dalay following exposure to either 60Cobalt-gamma-rays or 241Americium-alpha-particles were studied in eight mammalian cell lines of human and animal origin including human fibroblasts from normal individuals and from patients with Ataxia telangiectasia or Fanconi's anemia. For both endpoints the effec...

journal_title：Radiation and environmental biophysics

authors： Lücke-Huhle C,Comper W,Hieber L,Pech M

更新日期：1982-01-01 00:00:00

abstract：:We examined, by the fluorescent halo assay, alterations in the nucleoid structure (structure formed from cells under mild lysis conditions: in non-ionic detergent Triton X-100, 0.0005% and 1.5 mol/l NaCl) of L5178Y (LY) cell sublines which had been untreated, treated with reducing/chelating agents (beta-mercaptoethano...

journal_title：Radiation and environmental biophysics

authors： Kapiszewska M,Szumiel I,Lange CS

更新日期：1992-01-01 00:00:00

abstract：:About a century ago, Conrad Röentgen discovered X-rays, and Henri Becquerel discovered a new phenomenon, which Marie and Pierre Curie later coined as radio-activity. Since their seminal work, we have learned much about the physical properties of radiation and its effects on living matter. Alas, the more we discover, t...

journal_title：Radiation and environmental biophysics

authors： Feinendegen L,Hahnfeldt P,Schadt EE,Stumpf M,Voit EO

更新日期：2008-02-01 00:00:00

abstract：:The heads of rats were irradiated by 4 MeV electrons in doses 90, 180, and 360 Gy. The observed times of deaths ranged 120-600, 60-420, and 150-370 min after 90, 180, and 360 Gy, respectively. A dose dependent decrease of the brain uptake index of haloperidol was observed 1 and 3 h post radiation. On the other hand an...

journal_title：Radiation and environmental biophysics

authors： Trnovec T,Volenec K,Bezek S,Kállay Z,Durisová M,Scasnár V,Kubu M,Svoboda V

更新日期：1991-01-01 00:00:00

abstract：:To explore the expression level and the role of peroxisome proliferator-activated receptor gamma (PPAR-γ) in radiation-induced heart injury in a rat model, thirty-two Sprague-Dawley rats were divided into three groups (the control group, the 15-Gy irradiation group and the 18-Gy irradiation group). Experimental animal...

journal_title：Radiation and environmental biophysics

authors： Gao S,Wu R,Zeng Y

更新日期：2012-03-01 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：: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：:Non-linear mechanical response of viscoelastic strain responding media to high amplitude stress-strain is examined from a phenomenological point of view and found to lead to results compatible with empirical observations of high intensity ultrasound irradiation of brain, liver, and eye lens tissues. The proposed hyste...

journal_title：Radiation and environmental biophysics

authors： Johnston RL,Dunn F

更新日期：1981-01-01 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：: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：:Autoradiography is an effective tool for the imaging of radionuclide distributions in various samples. In sophisticated applications with special preparation and development of sample-emulsion combinations and subsequent grain counts it can be highly quantitative, but it requires carefully controlled conditions and a ...

journal_title：Radiation and environmental biophysics

authors： Kellerer AM,Chen J,Roos H

更新日期：1993-01-01 00:00:00

abstract：:Microcalorimetric experiments on growth and maintenance metabolism of Saccharomyces strains ranging from haploid to hexaploid are described. During growth, the mean dry weight, the mean volume and the maximum heat flux of the cells are nearly linear functions of ploidy. These parameters are correlated with the cell co...

journal_title：Radiation and environmental biophysics

authors： Lamprecht I,Schaarschmidt B,Welge G

更新日期：1976-03-30 00:00:00

abstract：:The migration of radionuclides from waste repositories to the biosphere potentially leads to a contamination of soil. Due to the importance of food production, the mobilisation and accumulation behaviour of long-lived radionuclides in the soil plays a key role in performance assessment studies. In this paper, the main...

journal_title：Radiation and environmental biophysics

authors： Koch-Steindl H,Pröhl G

更新日期：2001-06-01 00:00:00

abstract：:The major goal of this study was to identify and quantitatively describe the association between the characteristics of chronic (low-dose rate) exposure to (low LET) ionizing radiation and cellularity of peripheral blood cell lines. About 3,200 hemograms (i.e., spectra of blood counts) obtained over the years of maxim...

journal_title：Radiation and environmental biophysics

authors： Akleyev AV,Akushevich IV,Dimov GP,Veremeyeva GA,Varfolomeyeva TA,Ukraintseva SV,Yashin AI

更新日期：2010-05-01 00:00:00

abstract：:Procedures for age-adjustment of cancer fractions are proposed which do not require fixed age intervals. The full available information on survival times can then be used, which is especially important in small treatment groups. For incidental cancers a non-decreasing prevalence function and for fatal cancers the Kapl...

journal_title：Radiation and environmental biophysics

authors： Heidenreich WF,Collier C,Morlier JP,Cross FT,Kaiser JC,Monchaux G

更新日期：2004-09-01 00:00:00

abstract：:The effect of ionizing irradiation on the physiological activity of cyclic adenosine monophosphate (cAMP) in smooth muscle preparations from frog lung was studied. cAMP, given as dibutyryl salt (dib-cAMP) inhibited the radiation induced contractions of the muscle in a manner similar to the action of theophylline. In v...

journal_title：Radiation and environmental biophysics

authors： Schachinger L,Michailov M,Owusa Daaku S,Prechter I,Klöter H,Schippel C

更新日期：1982-01-01 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：: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 non-cancer mortality data for cerebrovascular disease (CVD) and cardiovascular diseases from Report 13 on the atomic bomb survivors published by the Radiation Effects Research Foundation were analysed to investigate the dose-response for the influence of radiation on these detrimental health effects. Various param...

journal_title：Radiation and environmental biophysics

authors： Schöllnberger H,Kaiser JC,Jacob P,Walsh L

更新日期：2012-05-01 00:00:00

abstract：:Beginning in 1950, people living on the banks of the Techa River received chronic low-dose-rate internal and external radiation exposures as a result of releases from the Mayak nuclear weapons plutonium production facility in the Southern Urals region of the Russian Federation. The Techa River cohort includes about 30...

journal_title：Radiation and environmental biophysics

authors： Krestinina L,Preston DL,Davis FG,Epifanova S,Ostroumova E,Ron E,Akleyev A

更新日期：2010-05-01 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：:The use of Green's function has played a fundamental role in transport calculations for high-charge high-energy (HZE) ions. Two recent developments have greatly advanced the practical aspects of implementation of these methods. The first was the formulation of a closed-form solution as a multiple fragmentation perturb...

journal_title：Radiation and environmental biophysics

authors： Shinn JL,Wilson JW,Schimmerling W,Shavers MR,Miller J,Benton EV,Frank AL,Badavi FF

更新日期：1995-08-01 00:00:00

abstract：:Cl-36 is an important component of nuclear waste. The concentrations of stable chlorine (Cl) in pig and cow tissues were measured to provide information which can be used to parameterize models of (36)Cl transfer into agricultural animals. The concentration of stable Cl in cows' milk was 1.0 +/- 0.2 g L(-1), in cow mu...

journal_title：Radiation and environmental biophysics

authors： Levchuk S,Kashparov V,Lazarev N,Colle C,Howard B,Yoschenko V,Yoschenko L

更新日期：2008-02-01 00:00:00

abstract：:Mouse spermatogonial germ cells are highly sensitive to ionizing radiation. Lithium salts are reported to stimulate the postirradiation recovery of hematopoietic marrow cells. We have, therefore, examined whether administered lithium chloride (LiCl) would also be able to protect the mouse germinal cells against radiat...

journal_title：Radiation and environmental biophysics

authors： Bhattacharjee D,Rajan R,Krishnamoorthy L,Singh BB

更新日期：1997-06-01 00:00:00

abstract：:The fluorescent intercalation complex of ethidium bromide with DNA was used as a probe to demonstrate damage in the base-pair region of DNA, due to the action of superoxide radicals. The O.2- radical itself, generated by gamma-radiolysis of oxygenated aqueous Na-formate solutions, is rather ineffective with respect to...

journal_title：Radiation and environmental biophysics

authors： Prütz WA

更新日期：1984-01-01 00:00:00