biology hazards of radiation and radiation protection

... Trang 1Rev sci tech Off int Epiz., 16 (1), 65-78 Potential animal health hazards of pork and pork products S Farez & R.S Morley Animal and Plant Health Risk Assessment Network, ... animal health hazards associated with the importation of pork and pork products include four viral agents: foot and mouth disease, classical swine fever (hog cholera), African swine fever, and swine ... gastroenteritis of pigs and porcine reproductive and respiratory syndrome, are presented to illustrate w h y these t w o diseases are not hazards w h e n associated with pork and pork products

Ngày tải lên: 16/11/2022, 19:41

... question whether the government of Vietnam is characterized by separation of powers, and _ the interrelationship between it and the protection of sovereignty and good governance 3 Key highlights ... Assembly of the Socialist Republic of Vietnam However, to support the whole ideas about the separation of powers and the implementation of such doctrine in Vietnam, the study of Aristotle and Montesquieu, ... vote of the majority 4 The Prime Minister is the head of the Government and responsible to the National Assembly for the work of the Government and assigned tasks; and shall report on the work of

Ngày tải lên: 26/06/2025, 16:39

... effects and potential risks of radiation Underlying the consideration of the collective dose concept and the recorrfmendations provided herein is the continuous evolution of radiation protection standards ... concept, and attempts to Trang 82 / 1 INTRODUCTION identify and examine the scientific and other bases that underlie it It examines the meaning and utility of the concept ofcollective dose in radiation ... Radiation Research and Policy Coordination asked the National Council on Radiation Protection and Measurements (NCRP) to provide advice on the use of collective dose in radiation protection, particularly

Ngày tải lên: 20/09/2017, 21:46

... degree of technologicalsophistication and their use is expanding rapidly 1.2.3 Worldwide consumption of rare earths Trang 3A breakdown of the 2006 consumption of rare earths by application and geographicalregion ... processing 4 Extraction and purification of individual rare earths 5 Manufacture of rare earth products 3 GENERAL RADIATION PROTECTION CONSIDERATIONS 3.1 APPLICATION OF THE STANDARDS TO INDUSTRIAL ... minerals and raw materials is provided in Refs [4, 5] Interms of the graded approach to regulation, the nature and extent of such measures will becommensurate with type of practice and levels of exposure,

Ngày tải lên: 24/10/2018, 09:21

... percen-tage of cells in the G2/M phase of the cell cycle Since the G2/M phase of the cell cycle is one of the most sen-sitive to radiation [17], this could explain some of the increased radiation-induced ... documentation system (Alpha Innotech, San Leandro, CA) and AlphaEaseFC software (Alpha Innotech, San Leandro, CA) Each band in the gel was outlined manually and the density determined The results ... 8 Gy radiation, or treated with loratadine or radiation alone gH2AX expression, determined by western blot at 1, 6, and 24 hrs after irradiation, increased within 1 hr after irradiation and returned

Ngày tải lên: 09/08/2014, 10:20

... PTV Six and 18 MV photons were used for the AP and PA fields, respectively The radiation dose was pre-scribed to the PTV, such that 100% of the PTV received > 95% of the prescribed dose and that ... Comparison of target volume coverage between IMRT and conventional 3D plans All treatment plans showed adequate coverage of the tar-get volume, with more than 95% of volume of PTV1 and PTV2 receiving ... volume of bladder and genitalia/ perineum receiving ≥ 30 Gy and ≥ 40 Gy for N0-1 and N2-3/T4 patients as compared to conventional 3D plans (Tables 3 and 4) For example, the mean volume of geni-talia/perineum

Ngày tải lên: 09/08/2014, 10:21

... 40 Gy of gamma radiation On the other hand, Keleman (1963) did not observe any effect on the cochlear nerve fibres after single doses of photon radiation less than 20 Gy As the effects of radiation ... dependent degeneration of sensory and supporting cells as well as loss of 8th nerve fibres in the Organ of Corti, were observed In ears exposed to 40-50Gy of radiation, the incidence of nerve fibre damage ... prevalence rate of 10.8 and 3.7 (age-standardized) per 100,000 per year for males and females respectively (Seow et al, 2004) In conventional RT of tumours located in the head and neck region,

Ngày tải lên: 14/09/2015, 10:44

... CALIBRATION OF SURVEY INSTRUMENTS USED IN RADIATION PROTECTION FOR THE ASSESSMENT OF IONIZING RADIATION FIELDS AND RADIOACTIVE SURFACE CONTAMl NATION Recommendations of the NATIONAL COUNCIL O N RADIATION ... Library of Congress Cataloging-in-Publication Data National Council on Radiation Protection and Measurements Calibration of survey instruments used in radiation protection for the assessment of ... used for radiation protection purposes be calibrated to an accuracy of f 5 percent (NCRP, 1978) Because of uncertainties in calibration standards and because of possible adverse effects of certain

Ngày tải lên: 20/09/2017, 21:44

... thatbecause the nature of the irradiation-induced defectsdetermines the degree of hardening, and because thenature, size, and density of defects is a strong function oftemperature, radiation strengthening ... between 0.15 and 0.3,4and Seeger has determined the value to be 0.2, incor-porating the assumption of a random distribution ofdislocation directions.5 Short-range defects such assmall and large ... in terms of irradiation andtest temperature.Figure 822shows total tensile elon-gation for a series of irradiated austenitic alloys at a displacement level of 30 dpa in both annealedand cold-worked

Ngày tải lên: 03/01/2018, 16:05

... Safety and Radiation Protection, 2007 Edition [ 1 ]: “Protection and Safety—The protection of people against exposure to ionizing radiation or radioactive materials and the safety of radiation ... Protection Against Ionizing Radiation and for the Safety of Radiation Protection and Safety of Radiation Sources: International Basic Safety Standards” on radiation protection, requirements specific ... organization of the radiation protection, because the EU BSS troduces two roles: the radiation protection expert (RPE) and the radiation protection officer (RPO) According to Ref [ 14 ] (p 73) the “radiation

Ngày tải lên: 03/01/2018, 17:45

... distribution of goods by applying them to the distribution of radiation doses The rest of this chapter is devoted to five particularly important parallel issues in moral philosophy and radiation protection ... dose limits and has no further requirements on the reduction of doses Both in social policies and radiation protection, such a policy can be criti-cized both for demanding too little and for being ... Thinking and Radiation Protection Sven Ove Hansson Royal Institute of Technology (KTH), Division of Philosophy, Stockholm, Sweden E-mail: soh@kth.se 3.1 INTRODUCTION Moral thinking is part of our

Ngày tải lên: 03/01/2018, 17:48

... desquamation and exfoliated corneocytes, occurring before moist desquamation and exposure of the underlying dermis With higher dosages of radiation, as seen with modern and novel methods of irradiation, ... ulcerative/bacteriologic phase and a healing phase The first signs of mucositis are white appearances of the mucosa such as hyperkera-tinization and edema of the mucosa and formation of pseudomembranes, and red appearances ... optimal and correct radiation techniques and modalities that truly benefit the patients, spare normal organ function and avoid exposure to un-necessary toxicity Although understanding and handling of

Ngày tải lên: 21/09/2020, 11:18

... and increased cytotoxicity of radiation and temozolomide We speculated that the impairment of DNA damage repair following radiation is potential (See figure on previous page.) Figure 4 Mode of ... hemisphere of the well to wound the cells and Trang 4the medium was replaced with starvation medium Im-ages were taken of the intersections of the linear cell wound and each grid line The pictures of ... panel of glioma cell lines U251 and T98G showed similar levels of p-EGFR expression U251 and U87 cells showed low level of MGMT, as previously described [14] which might highlight a high level of

Ngày tải lên: 05/11/2020, 01:58

... analysis 2 Expression of IGF2 and krt13 in wild type and radiation resistant strains by 1 Results of DNA microarray analysis 2 Expression of IGF2 gene and protein in WT and RR-strains by RT-qPCR, ... analysis of IGF2 and krt13 in radiation resistance 16 I Materials and methods 16 1 Effect of krt13 siRNA and IGF2 siRNA transduction on colony formation ability of RR-strains 2 Effect of radiation ... transduced-A431-LDR, -HDR, NA-LDR and -HDR cells 3 Effect of radiation of krt13-siRNA transduced-A431-LDR and -HDR cells 4 Expression of pluripotent stem cell markers, krt13 and IGF2 in IGF2- and krt13-siRNA

Ngày tải lên: 08/08/2021, 17:34

... of chloroform: kinetic modelling,” Water Research, vol 39, no 10, pp 2085–2095, 2005. [20] N Getoff, “Radiation-induced degradation of water pollutants: state of the art,” Radiation Physics and ... processes of extraction and cleanup of 74 1 7 1 1 16 0 10 20 30 40 50 60 70 80 Carbofuran Diazinon Dimethoate Parathion Pirimicarb Phenthoate Figure 2: Types of pesticides and the frequency of appearance ... Burrows, M Canle L, J A Santaballa, and S Steenken, “Reaction pathways and mechanisms of photodegradation of pesticides,” Journal of Photochemistry and Photobiology B, vol. 67, no 2, pp 71–108,

Ngày tải lên: 01/11/2022, 09:50

... campaign of this type ever Trang 3performed This campaign was part of the research activities of Working Group 11 of EURADOS (EURADOS, 2020) and of the CRREAT (Research Center of Cosmic Rays and Radiation ... one of the groups of radiation workers which receive the highest annual exposure to ionizing radiation Validation of computer codes used routinely for calculation of the exposure due to cosmic radiation ... field and build-up/absorption effects resulting from nuclear reactions with the atmospheric nuclei An assessment of the radiation exposure of aircraft crew requires a determination of the radiation

Ngày tải lên: 24/12/2022, 02:08

... Elaine Reardon of RAND and Katherine Porter of the University of Iowa College of Law, increased the quality and clarity of this report Trang 17Abbreviations AO Administrative Office of the U.S Courts ... order@rand.org Library of Congress Cataloging-in-Publication Data The Bankruptcy Abuse Prevention and Consumer Protection Act of 2005 : evaluation of the effects of using IRS expense standards to calculate ... Northern District of Ohio The IRS standards result in larger deduc-tions, on average, and, therefore, lower MDIs across the country con-Effects of Specific IRS Standards Two of the IRS standards primarily

Ngày tải lên: 18/02/2014, 02:20

... correspondence between credit ratings and a range of default probabilities and loss expectations under standardized conditions of economic stress; and • standardizing credit rating terminology ... correspondence between credit ratings and a range of default probabilities and loss expectations under standardized conditions of economic stress; and (4) standardizing credit rating terminology ... standardized conditions of economic stress; and (4) standardizing credit rating terminology across asset classes, so that named ratings correspond to a standard range of default probabilities and

Ngày tải lên: 06/03/2014, 08:20

... models developed and used in various offices of EPA's Office of Air and Radiation These emissions models provide estimates of emissions of five criteria air pollutants2 from each of several key ... Leland Deck of Stratus Consulting; Jim Wilson and Frank Divita of E.H Pechan and Associates; Sharon Douglas and Boddu Venkatesh of ICF International; Neil Wheeler of Sonoma Technologies; and ... Davidson, and Jason Lynch; and contractor staff Andrew Bollman, Maureen Mullen and Kirstin Thesing of E.H Pechan and Associates; Belle Hudischewskyj, Tom Myers, Yi Hua Wei, and Jay Haney of ICF...

Ngày tải lên: 15/03/2014, 16:20

... and survey radiation, and the use of such instrumentation; and of to all the (3) the individual's responsibility to adhere to the NRC’s regulations and the Commands's radiation material (4) radiation ... monitor, and survey radiation, and the use of such instrumentation; and (2) biological effects of radiation; (4) radiation safety techniques and procedures This training will include the use of time, ... material, radiation generating devices, and radioactive and mixed waste with which they may be working; d A working knowledge of the USACE and his or her USACE Command Radiation Protection Program, and...

Ngày tải lên: 05/03/2014, 19:20