Effective energy assessment during breast cancer intraoperative radiotherapy by low-energy X-rays: A Monte Carlo study.

abstract：:Activity concentrations of the selected radionuclides (40)K, (226)Ra and (232)Th were measured in surface soil samples collected from 38 cities in the southwest region of Nigeria by means of gamma spectroscopy with a high-purity germanium detector. Measured activity concentration values of (40)K varied from 34.9 +/- 4...

journal_title：Radiation and environmental biophysics

authors： Ajayi OS

更新日期：2009-08-01 00:00:00

abstract：:The article is devoted to the study of the role of intracellular mechanisms in the formation of radiation-induced genetic instability and its transgenerational effect in cells of different tissues of the descendants of Drosophila melanogaster mutant strains whose parents were exposed to chronic radiation (0.42 and 3.5...

journal_title：Radiation and environmental biophysics

authors： Yushkova E

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：:Fluence spectra at several ground distances in Hiroshima and Nagasaki are provided along with associated fluence-to-kerma coefficients from the Dosimetry System 2002 (DS02). Also included are transmission factors for calculating expected responses of in situ sample measurements of neutron activation products such as (...

journal_title：Radiation and environmental biophysics

authors： Egbert SD,Kerr GD,Cullings HM

更新日期：2007-11-01 00:00:00

abstract：:The results of a study in which groups of sheep were given single oral administrations of 14C, 3H and 35S and then slaughtered over a period of 1 year are reported. The experimental data were used to investigate the potential of metabolically based models for describing the transfer of the three radionuclides to sheep...

journal_title：Radiation and environmental biophysics

authors： Crout NM,Mayes RW,Beresford NA,Lamb CS,Howard BJ

更新日期：1998-02-01 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：: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：:The effect of gamma radiation on red blood cells have been examined using a spin labeling method. For this purpose two spin labels were used to monitor membrane fluidity: methyl 5-doxylpalmitate (Met 5-DP) and methyl 12-doxylstearate (Met 12-DS). The irradiation of red cells with the doses of 200 and 500 Gy caused dec...

journal_title：Radiation and environmental biophysics

authors： Gwoździński K

更新日期：1991-01-01 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：:In spite of a well-known relationship between exposure to radiation and increased risk for cancer development, the biological mechanisms involved in radiation-induced carcinogenesis remain poorly documented. Various hypotheses are discussed in this paper. It appears that radiation cannot be directly responsible for th...

journal_title：Radiation and environmental biophysics

authors： Sabatier L,Lebeau J,Dutrillaux B

更新日期：1995-11-01 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：: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 antioxidant properties of hydroxycinnamic acid derivatives (HCA) were studied by laser flash photolysis. The transient species with maximum absorption at 360 nm were assigned to the phenoxyl radical of HCA. The SO (4) (.-) induced oxidation of HCA was also investigated. It was shown that the interaction of SO (4) ...

journal_title：Radiation and environmental biophysics

authors： Zhu H,Zhao H,Zhang Z,Wang W,Yao S

更新日期：2006-05-01 00:00:00

abstract：:Microwave irradiation has been shown to decrease the input resistance of snail neurons. In this study, we examined the role of extracellular calcium in triggering the microwave-induced enhancement of membrane conductance. Two sets of experiments were conducted. In the first set, nerve cells were superfused using Ringe...

journal_title：Radiation and environmental biophysics

authors： Arber SL,Lin JC

更新日期：1985-01-01 00:00:00

abstract：:The rare earth radionuclides 177 Lu and 153Sm were administered as single i.p. injections in NMRI mice. Lu was deposited principally (up to 60%) in the skeleton if the quantity of stable carrier was low. Increase of stable carrier enhanced deposition in the reticulo-endothelial system. Sm was preferentially deposited ...

journal_title：Radiation and environmental biophysics

authors： Müller WA,Scháffer EH,Linzner U

更新日期：1980-01-01 00:00:00

abstract：:Preliminary results on the spectral dependence of the absorption of light in tissue are presented and discussed with respect to medical laser application. ...

journal_title：Radiation and environmental biophysics

authors： Eichler J,Knof J,Lenz H

更新日期：1977-10-12 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：:Quantitative cancer incidence data exist for various laboratory animal models, but little of this information is usable for estimating human risks, primarily because of uncertainties about possible mechanistic differences among species. Acceptance and utilization of animal data for human risk assessment will require a...

journal_title：Radiation and environmental biophysics

authors： Burns FJ,Tang MS,Frenkel K,Nádas A,Wu F,Uddin A,Zhang R

更新日期：2007-06-01 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：:This study examined the effects of three disasters (the Great East Japan Earthquake of March 11, 2011, followed by a tsunami and the Fukushima Daiichi Nuclear Power Plant accident) on feeding methods and growth in infants born after the disasters. Using results from the Fukushima Health Management Survey, Soso Distric...

journal_title：Radiation and environmental biophysics

authors： Kyozuka H,Yasuda S,Kawamura M,Nomura Y,Fujimori K,Goto A,Yasumura S,Abe M

更新日期：2016-05-01 00:00:00

abstract：:In the mountainous "Hohe Tauern" region of Salzburg (Austria), milk samples have been collected in a long-term montitoring programme since 1988, at eight alpine sites used for extensive, seasonal stock farming. For this alpine environment with its acidic soils developed on silicate bedrock, high soil-to-plant transfer...

journal_title：Radiation and environmental biophysics

authors： Lettner H,Hubmer A,Bossew P,Strebl F,Steinhäusler F

更新日期：2009-02-01 00:00:00

abstract：:Four different thiol reagents: p-chloromercuribenzoic acid (pCMB), mercuric chloride (HgCl2), N-ethylmaleimide (NEM), and 5,5'-dithiobis-(2-nitrobenzoic acid) (DTNB) were employed as agents modifying the transport of a hydrophilic and hydrophobic non-electrolyte spin labels: 4-hydroxy-2,2,6,6-tetramethylpiperidine-1-o...

journal_title：Radiation and environmental biophysics

authors： Gwoździński K,Bartosz G,Leyko W

更新日期：1983-01-01 00:00:00

abstract：:A new device for the measurement of complete laser induced fluorescence emission spectra (maxima near 690 and 735 nm) of leaves during the induction of the chlorophyll fluorescence is described. In this the excitation light (cw He/Ne laser, 632.8 nm) is switched on by a fast electro-mechanical shutter which provides a...

journal_title：Radiation and environmental biophysics

authors： Szabó K,Lichtenthaler HK,Kocsányi L,Richter P

更新日期：1992-01-01 00:00:00

abstract：:Low-dose ionizing radiation (IR) responses remain an unresolved issue in radiation biology and risk assessment. Accurate knowledge of low-dose responses is important for estimation of normal tissue risk in cancer radiotherapy or health risks from occupational or hazard exposure. Cellular responses to low-dose IR appea...

journal_title：Radiation and environmental biophysics

authors： Langen B,Helou K,Forssell-Aronsson E

更新日期：2020-08-01 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：:A mathematical model which simulates the observed dose-effect relationships for fish eggs exposed to chronic irradiation is presented. The model assumes that the exposed fish eggs may exist in one of the following states: normally developing, reversibly damaged, and lethally damaged. Reversible damages may be recovere...

journal_title：Radiation and environmental biophysics

authors： Kryshev AI,Sazykina TG,Badalian KD

更新日期：2006-09-01 00:00:00

abstract：:C57Bl6-lacZ animals were exposed to a range of low dose-rate simulated solar particle event (sSPE) radiation at the NASA-sponsored Research Laboratory (NSRL) at Brookhaven National Laboratory (BNL). Peripheral blood was harvested from animals from 1 to 12 days after total body irradiation (TBI) to quantify the level o...

journal_title：Radiation and environmental biophysics

authors： Chang PY,Doppalapudi R,Bakke J,Wang A,Menda S,Davis Z

更新日期：2010-08-01 00:00:00

abstract：:In the present work we have investigated the possible interaction between Bleomycin (B) and UV light or hyperthermia (HT) in the induction of lethal events in diploid yeast populations in the stationary phase of growth. UV and B acting as single agents determine sigmoid survival curves. The combination of UV + B produ...

journal_title：Radiation and environmental biophysics

authors： Barrios E,Candreva EC,Nunes E

更新日期：1991-01-01 00:00:00

abstract：:Osteosarcoma is the most frequent secondary malignancy following radiotherapy of patients with bilateral retinoblastoma. This suggests that the Rb1 tumour suppressor gene might confer genetic susceptibility towards radiation-induced osteosarcoma. To define the contribution of the Rb1 pathway in the multistep process o...

journal_title：Radiation and environmental biophysics

authors： Gonzalez-Vasconcellos I,Domke T,Kuosaite V,Esposito I,Sanli-Bonazzi B,Nathrath M,Atkinson MJ,Rosemann M

更新日期：2011-03-01 00:00:00

abstract：:This study aimed to evaluate the biological effects of gamma irradiation on zebrafish embryos. Different doses of gamma rays (0.01, 0.05, 0.1, 0.5 and 1 Gy) were used to irradiate zebrafish embryos at three developmental stages (stage 1, 6 h post-fertilization (hpf); stage 2, 12 hpf; stage three, 24 hpf), respectively...

journal_title：Radiation and environmental biophysics

authors： Hu M,Hu N,Ding D,Zhao W,Feng Y,Zhang H,Li G,Wang Y

更新日期：2016-11-01 00:00:00