WorldWideScience

Sample records for anticipated radiological impacts

  1. Radiological impacts of phosphogypsum.

    Science.gov (United States)

    Al Attar, Lina; Al-Oudat, Mohammad; Kanakri, Salwa; Budeir, Youssef; Khalily, Hussam; Al Hamwi, Ahmad

    2011-09-01

    This study was carried out to assess the radiological impact of Syrian phosphogypsum (PG) piles in the compartments of the surrounding ecosystem. Estimating the distribution of naturally occurring radionuclides (i.e. (226)Ra, (238)U, (232)Th, (210)Po and (210)Pb) in the raw materials, product and by-product of the Syrian phosphate fertilizer industry was essential. The data revealed that the concentrations of the radionuclides were enhanced in the treated phosphate ore. In PG, (226)Ra content had a mean activity of 318 Bq kg(-1). The uranium content in PG was low, ca. 33 Bq kg(-1), because uranium remained in the phosphoric acid produced. Over 80% of (232)Th, (210)Po and (210)Pb present partitioned in PG. The presence of PG piles did not increase significantly the concentration of (222)Rn or gamma rays exposure dose in the area studied. The annual effective dose was only 0.082 mSv y(-1). The geometric mean of total suspended air particulates (TSP) ca. 85 μg m(-3). The activity concentration of the radionuclides in filtrates and runoff waters were below the detection limits (ca. 0.15 mBq L(-1) for (238)U, 0.1 mBq L(-1) for (232)Th and 0.18 mBq L(-1) for both of (210)Po and (210)Pb); the concentration of the radionuclides in ground water samples and Qattina Lake were less than the permissible limits set for drinking water by the World Health Organisation, WHO, (10, 1 and 0.1 Bq L(-1) for (238)U, (232)Th and both of (210)Po and (210)Pb, respectively). Eastern sites soil samples of PG piles recorded the highest activity concentrations, i.e. 26, 33, 28, 61 and 40 Bq kg(-1) for (226)Ra, (238)U, (232)Th, (210)Po and (210)Pb, respectively, due to the prevailing western and north-western wind in the area, but remained within the natural levels reported in Syrian soil (13-32 Bq kg(-1) for (226)Ra, 24.9-62.2 Bq kg(-1) for (238)U and 10-32 Bq kg(-1) for (232)Th). The impact of PG piles on plants varied upon the plant species. Higher concentrations of the radionuclides were

  2. The impact of anticipation in dynamical systems

    CERN Document Server

    Gerlee, P; Lundh, T; Wennberg, B

    2016-01-01

    The flocking of animals is often modelled as a dynamical system, in which individuals are represented as particles whose interactions are determined by the current state of the system. Many animals, however, including humans, have predictive capabilities, and presumably base their behavioural decisions---at least partially---upon an anticipated state of their environment. We explore a minimal version of this idea in the context of particles that interact according to a pairwise potential. Anticipation enters the picture by calculating the interparticle forces from linear extrapolation of the positions some time $\\tau$ into the future. Our analysis shows that for intermediate values of $\\tau$ the particles rapidly form milling structures, induced by velocity alignment that emerges from the prediction. We also show that for $\\tau > 0$, any dynamical system governed by an even potential becomes dissipative. These results suggest that anticipation could play an important role in collective behaviour, since it ind...

  3. Anticipating the Environmental Impacts and Behavioral Drivers of Deep Decarbonization

    Science.gov (United States)

    EPA is seeking regular and early career applications proposing research that will contribute to an improved ability to understand and anticipate the public health and environmental impacts and behavioral drivers of significant changes in energy consumption

  4. Anticipated Radiological Dose to Worker for Plutonium Stabilization and Handling at PFP - Project W-460

    CERN Document Server

    Weiss, E V

    2000-01-01

    This report provides estimates of the expected whole body and extremity radiological dose, expressed as dose equivalent (DE), to workers conducting planned plutonium (Pu) stabilization processes at the Hanford Site Plutonium Finishing Plant (PFP). The report is based on a time and motion dose study commissioned for Project W-460, Plutonium Stabilization and Handling, to provide personnel exposure estimates for construction work in the PFP storage vault area plus operation of stabilization and packaging equipment at PFP.

  5. Radiological impact of oil/gas industry

    Energy Technology Data Exchange (ETDEWEB)

    Botezatu, E.; Grecea, C. [Institute of Public Health, Iasi (Romania)

    2006-07-01

    The objective of this study was to assess the radiological impact on the environment and population of the oil/gas industry that is non-nuclear industry but uses and can produce materials, with an enhanced content of naturally occurring radionuclides. The natural radioactivity levels in the oil field environmental media, which could represent a risk for the people living in the areas influenced by this non-nar industry, do not indicate an increase in the natural radiation background. From a radiological point of view, the situation does not pose any immediate concern. Some places however need further investigations, with special emphasis on the control of 226 Ra releases to prevent from polluting the environment with this radionuclide. The growing concern amongst the population about the quality of their environment increases the significance of impact assessment of radioactive releases into the environment even if natural radionuclides occur. (N.C.)

  6. Impact: development of a radiological mummy database.

    Science.gov (United States)

    Nelson, Andrew John; Wade, Andrew David

    2015-06-01

    The Internet Mummy Picture Archiving and Communication Technology (IMPACT) radiological and context database, is a large-scale, multi-institutional, collaborative research project devoted to the digital preservation and scientific study of mummified remains, and the mummification traditions that produced them, using non-destructive medical imaging technologies. Owing to the importance of non-destructive analyses to the study of mummified human remains, the IMPACT database, website, and wiki provide a basis for anthropological and palaeopathological investigations, grounded in the most current technological imaging and communication standards, accessible through any internet connection, and protected against rapidly changing media standards. Composed of paired online radiographic and contextual databases, the IMPACT project is intended to provide researchers with large-scale primary data samples for anthropological and palaeopathological investigations. IMPACT addresses the limitations of the case-study approach to mummified human remains and contributes to the development of standards of practice in imaging of mummified remains. Furthermore, IMPACT allows researchers a greater appreciation of, and engagement with, patterns of health and disease in ancient times as well as the variability present in the mummification traditions of ancient Egypt and other cultures that sought to preserve their dead for eternity.

  7. The impact of group composition and attitudes towards diversity on anticipated outcomes of diversity in groups

    NARCIS (Netherlands)

    van Oudenhoven-van der Zee, Karen; Paulus, Paul; Vos, Menno; Parthasarathy, Niveditha

    2009-01-01

    In two studies, students evaluated group pictures of workgroups of varying ethnic and gender composition with respect to anticipated affective and productive outcomes. The impact of level of diversity, faultlines and individual differences in diversity attitudes on anticipated outcomes were examined

  8. Anticipated Guilt for not Helping and Anticipated Warm Glow for Helping are Differently Impacted by Personal Responsibility to Help

    Directory of Open Access Journals (Sweden)

    Arvid Erlandsson

    2016-09-01

    Full Text Available One important motivation for people behaving prosocially is that they want to avoid negative and obtain positive emotions. In the prosocial behavior literature however, the motivations to avoid negative emotions (e.g. guilt and to approach positive emotions (e.g. warm glow are rarely separated, and sometimes even aggregated into a single mood-management construct. The aim of this study was to investigate whether anticipated guilt if not helping and anticipated warm glow if helping are influenced similarly or differently when varying situational factors related to personal responsibility to help. Helping scenarios were created and pilot tests established that each helping scenario could be formulated both in a high-responsibility version and in a low-responsibility version. In Study 1 participants read high-responsibility and low-responsibility helping scenarios, and rated either their anticipated guilt if not helping or their anticipated warm glow if helping (i.e. separate evaluation. Study 2 was similar but here participants rated both their anticipated guilt if not helping and their anticipated warm glow if helping (i.e. joint evaluation. Anticipated guilt was clearly higher in the high-responsibility versions, but anticipated warm glow was unaffected (in Studies 1a and 1b, or even higher in the low-responsibility versions (Study 2. In Studies 3 (where anticipated guilt and warm glow were evaluated separately and 4 (where they were evaluated jointly, personal responsibility to help was manipulated within-subjects. Anticipated guilt was again constantly higher in the high-responsibility versions but for many types of responsibility-manipulations, anticipated warm glow was higher in the low-responsibility versions. The results suggest that we anticipate guilt if not fulfilling our responsibility but that we anticipate warm glow primarily when doing over and beyond our responsibility. We argue that future studies investigating motivations for

  9. Assessment of the radiological impact of contaminated discharges

    Energy Technology Data Exchange (ETDEWEB)

    Sweeck, L.; Zeevaert, T.

    1996-09-18

    A biosphere model has been used to calculate the release of radionuclides from contaminated soils and their dose impact on critical individuals in the environment. Normal evolution and accidental scenarios are considered. The objective of the model is to provide an indication of the radiological risk rather than to predict its future impact.

  10. Radiological impact assessment within the IAEA Arctic Assessment Project (IASAP)

    DEFF Research Database (Denmark)

    Scott, E.M.; Gurbutt, P.; Harmes, I.;

    1998-01-01

    As part of the International Arctic Seas Assessment Project (IASAP) of IAEA, a working group was created to model the dispersal and transfer of radionuclides released from radioactive waste disposed of in the Kara Sea and bays of Novaya Zemlya and to assess the radiological impact. Existing models...

  11. A report on CERN’s radiological impact

    CERN Multimedia

    2007-01-01

    The Swiss and French authorities have just published a report showing that CERN’s radiological impact is negligible. The CERN Safety Commission’s Environment Team inspects the river Allondon. Since its foundation more than 50 years ago, questions about the Laboratory’s hypothetical radiological impact have been asked repeatedly by the public. These questions are partly due to the name CERN which, for historical reasons, contains the word nuclear. On 16 October, the Swiss and French authorities published a report that takes stock of CERN’s true radiological impact, providing a detailed and documented answer for all those who wonder about the risks of radioactivity. In their report, the Swiss Office fédéral de la santé publique (OFSP) and the French Institut de radioprotection et de sûreté nucléaire (IRSN), the two bodies responsible for monitoring radiological risks in CERN’s Host States, concluded that CERN’s impac...

  12. Radiological Impact of Phosphogypsum Application in Agriculture

    Science.gov (United States)

    Dias, Nivea M. P.; Caires, Eduardo F.; Pires, Luiz F.; Bacchi, Marcio A.; Fernandes, Elisabete A. N.

    2010-08-01

    Phosphogypsum (PG) contains radionuclides from 238U and 232Th decay series. Due to the presence of these radionuclides, many countries restricted the use of PG in agriculture, however there is not such restriction in Brazil. The main objective of this work was to evaluate the impact of PG application on 226Ra (238U) and 228Ra (232Th) concentrations in soil. Gamma-spectrometry was carried out using HPGe detector. No increment of 226Ra and 228Ra was observed for increasing PG doses. Average values found for 226Ra and 228Ra were respectively 37 Bq kg-1 and 57 Bq kg-1. The results showed that the increasing PG doses in the specific conditions of the experiment did not cause a significant increment of radionuclides.

  13. Radiology

    OpenAIRE

    Vassallo, Pierre

    2004-01-01

    Radiology is the fastest developing field of medicine and these unprecedented advances have been mainly due to improving computer technology. Digital imaging is a technology whereby images are acquired in a computer format, so that they can be easily stored and recalled for display on any computer workstation. Digital image acquisition has been used in ultrasound, computed tomography (CT) and magnetic resonance imaging (MRI) from the start. The use of digital imaging in conventional X-rays, k...

  14. Quantification and visualization of the human impacts of anticipated precipitation extremes in South America

    Science.gov (United States)

    Fuller, C. T.; Sabesan, A.; Khan, S.; Kuhn, G.; Ganguly, A. R.; Erickson, D. J.; Ostrouchov, G.

    2006-12-01

    The research described here quantifies and visualizes the human impacts of extreme events, which in turn can lead to enhanced disaster readiness levels as well as response or mitigation strategies. Specifically, we investigate the space-time impact of anticipated precipitation extremes on human population in South America. The research attempts to integrate two recent and ongoing lines of research. In the first study (Sabesan et al., 2006; Abercrombie et al, 2006) LandScan® high-resolution population data sets were used to develop threat metrics in space and time. In the second study (Khan et al, 2006; Kuhn and Ganguly, 2006), grid-based observations of precipitation time series in South America were utilized to quantify the probability of precipitation extremes in space and time and define a geo-referenced "extremes volatility ratio" (EVR) for unanticipated, or the "truly unusual", extremes. Here we define an "extremes volatility index" (EVI) which scales from zero to unity and provides an anticipated measure of surprise corresponding to the truly unusual extremes. An EVI of zero indicates no possibility of surprise with the truly unusual extremes statistically identical to the "typical extremes", or the extremes considered, for example, in engineering design. We investigate the EVI in conjunction with maps for ambient population in South America obtained from a high- resolution global population database called LandScan® to produce a "human risk index" (HRI) in space and time. The EVI is roughly interpreted as a probability number which is multiplied with the population at each grid in space and time to obtain a measure of risk. Future research needs to explore measures of risk that consider other costs of disasters, for example impacts on critical infrastructures. A geo-referenced index, the "disaster impact index" (DII) is proposed. The DII at each grid is computed by dividing the HRI with the Gross Domestic Product (GDP) for each country. The GDP is utilized

  15. Potential radiological impacts of upper-bound operational accidents during proposed waste disposal alternatives for Hanford defense waste

    Energy Technology Data Exchange (ETDEWEB)

    Mishima, J.; Sutter, S.L.; Hawley, K.A.; Jenkins, C.E.; Napier, B.A.

    1986-02-01

    The Geologic Disposal Alternative, the In-Place Stabilization and Disposal Alternative, and the Reference Disposal Alternative are being evaluated for disposal of Hanford defense high-level, transuranic, and tank wastes. Environmental impacts associated with disposal of these wastes according to the alternatives listed above include potential doses to the downwind population from operation during the application of the handling and processing techniques comprising each disposal alternative. Scenarios for operational accident and abnormal operational events are postulated, on the basis of the currently available information, for the application of the techniques employed for each waste class for each disposal alternative. From these scenarios, an upper-bound airborne release of radioactive material was postulated for each waste class and disposal alternative. Potential downwind radiologic impacts were calculated from these upper-bound events. In all three alternatives, the single postulated event with the largest calculated radiologic impact for any waste class is an explosion of a mixture of ferri/ferro cyanide precipitates during the mechanical retrieval or microwave drying of the salt cake in single shell waste tanks. The anticipated downwind dose (70-year dose commitment) to the maximally exposed individual is 3 rem with a total population dose of 7000 man-rem. The same individual would receive 7 rem from natural background radiation during the same time period, and the same population would receive 3,000,000 man-rem. Radiological impacts to the public from all other postulated accidents would be less than that from this accident; furthermore, the radiological impacts resulting from this accident would be less than one-half that from the natural background radiation dose.

  16. Radiological impact of the application of phosphogypsum in agriculture

    Energy Technology Data Exchange (ETDEWEB)

    Mazzilli, B.P.; Saueia, C.H.R., E-mail: chsaueia@ipen.b, E-mail: mazzilli@ipen.b [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil). Lab de Radiometria Ambiental

    2011-07-01

    Phosphogypsum is a TENORM waste and one possible of this application is in agriculture. This paper aims to evaluate the dose due to ingestion of natural radionuclides present in phosphogypsum that could be incorporated in the food chain. For this evaluation, a conservative scenario was defined, considering a theoretical long term exposure due to annual applications of phosphogypsum in agriculture. This scenario covers estimation of the increment of radionuclides activity concentration in soil due to phosphogypsum applications; the uptake from soil by edible portions of vegetable and crops and activity concentration of radionuclides in milk and meat as part of the food chain; based on a model, transfer factors and conversion factors provided by IAEA and ICRP. The higher doses were found for the ingestion of vegetables and grain crop, up to 4.2 10-1 mSv per year. It is concluded that the radiological impact of this practice is negligible. (author)

  17. The Economic Impact of a Radiological Dispersal Device (RDE)

    Science.gov (United States)

    2009-03-01

    7 MANMADE RADIOLOGICAL INCIDENT - GOIANIA , BRAZIL ......................................................................... 8 MANMADE...illustrated in the Goiania , Brazil scenario, Rosoff validates the notion of how businesses within the port area could possibly suffer economic losses due to...the area and not return, thus directly causing the economic effects of the RDE. Manmade Radiological Incident - Goiania , Brazil The contamination

  18. Potential radiological impact of a conceptual Hanford Nuclear Energy Center

    Energy Technology Data Exchange (ETDEWEB)

    Soldat, J. K.

    1978-10-01

    The potential radiological impact of the siting of 20 light-water reactors and associated nuclear fuel cycle facilities on the Hanford reservation was evaluated by calculating the potential radiation doses received by individuals and populations in the vicinity of the reservation. The largest contributor to the potential radiation doses, to both the individual and the 50-mile population, were the effluents from the conceptual 1500 MT/yr fuel reprocessing plant. The effluents from the 20 reactors combined was the second largest contributor. The radiation dose contributions from the 300 MT/yr mixed oxide fuel fabrication plant were insignificant. The highest organ dose from all facilities combined was 24 mrem/yr to the child thyroid; followed by 8 mrem/yr to the adult thyroid. The 50-year collective dose commitment to the population within 50 miles was about 50 man-rem for most organs of reference, while the estimate for bone was 70 man-rem. With the exception of /sup 85/Kr, the release rates of radionuclides were within the EPA guidelines. Removal of about 90% of the 4 x 10/sup 5/ Ci/yr per gigawatt-year of electricity of /sup 85/Kr from the fuel reprocessing plant gaseous effluents would be required for compliance with the EPA guidelines.

  19. The potential radiological impact from a Brazilian phosphate facility.

    Science.gov (United States)

    Glória dos Reis, Rócio; da Costa Lauria, Dejanira

    2014-10-01

    In the semiarid region of Brazil, a facility for the production of phosphoric acid for fertilizer is in the last stages of the planning phase. The raw feedstock of Santa Quiteria has a very high level of uranium associated with the phosphate in form of apatite. The reaction by which phosphoric acid is produced generates phosphogypsum (PG) as a by-product. The ratio of phosphogypsum to phosphoric acid is approximately 5 to 1. After all of the phosphate has been extracted and processed, it is expected that some 37 million tons of phosphogypsum will be produced, containing 13 Bq/g of (226)Ra and 11 Bq/g of (210)Pb. To assess the potential impact of this PG stack on the surrounding inhabitants, a generic impact assessment was performed using a modeling approach. We estimated the amount and shape of the residue stack and used computational codes for assessing the radiological impact in a prospective risk assessment. A hypothetical farmer scenario was used to calculate two potential doses, one near the site boundary and another directly over the stack piles after the project is shut down. Using a conservative approach, the potential public dose was estimated to be 2.8 mSv/y. This study identified the rainfall erosion index, dissolution rate of PG, radionuclide distribution coefficients and fish consumption rate as parameters where improved information could enhance the quality of the dose assessment. The disposal and shape of the stack is of major concern, since the PG erosion might be the main pathway for the environmental contamination; therefore, studies should be carried out to determine a suitable shape and disposal of the stack. Furthermore, containment barriers should be evaluated for their potential to reduce or avoid environmental contamination by runoff. In addition, the onsite public dose underscores the importance of a planning for remediation of the area after the plant is shut down to assure that neither the public nor the environmental health will be

  20. The radiological impact of the Belgian phosphate industry

    Energy Technology Data Exchange (ETDEWEB)

    Vanmarcke, H.; Paridaens, J. [Belgian Nuclear Research Centre, SCK.CEN, Boeretang 200, 2400 Mol (Belgium)

    2006-07-01

    The Belgian phosphate industry processes huge amounts of phosphate ore (1.5 to 2 Mton/year) for a wide range of applications, the most important being the production of phosphoric acid, fertilizers and cattle food. Marine phosphate ores show high specific activities of the natural uranium decay series (usually indicated by Ra-226) (e.g. 1200 to 1500 Bq/kg for Moroccan ore). Ores of magmatic origin generally contain less of the uranium and more of the thorium decay series (up to 500 Bq/kg). These radionuclides turn up in by-products, residues or product streams depending on the processing method and the acid used for the acidulation of the phosphate rock. Sulfuric acid is the most widely used, but also hydrochloric acid and nitric acid are applied in Belgium. For Flanders, the northern part of Belgium, we already have a clear idea of the production processes and waste streams. The five Flemish phosphate plants, from 1920 to 2000, handled 54 million ton of phosphate ore containing 65 TBq of radium-226 and 2.7 TBq of thorium- 232. The total surface area of the phosphogypsum and calcium fluoride sludge deposits amounts to almost 300 ha. There is also environmental contamination along two small rivers receiving the waste waters of the hydrochloric production process: the Winterbeek (> 200 ha) and the Grote Laak (12 ha). The data on the impact of the phosphate industry in the Walloon provinces in Belgium is less complete. A large plant produced in 2004 0.8 Mton of phosphogypsum, valorizing about 70 % of the gypsum in building materials (plaster, cement), in fertilizers, and in other products such as paper. The remainder was stored on a local disposal site. The radiological impact of the Belgian phosphate industry on the local population will be discussed. At present most contaminated areas are still recognizable as waste deposits and inaccessible to the population. However as gypsum deposits and other contaminated areas quickly blend in with the landscape, it is

  1. Hypothetical influence of non-indexed Spanish journals on the impact factor of radiological journals

    Energy Technology Data Exchange (ETDEWEB)

    Miguel-Dasit, Alberto [MR Section, La Plana de Vila-Real Hospital, Castellon (Spain); Aleixandre, Rafael [Institute of History of Science and Documentation Lopez Pinero, University of Valencia-CSIC, Valencia (Spain); Valderrama, Juan C. [Institute of History of Science and Documentation Lopez Pinero, University of Valencia-CSIC, Valencia (Spain); Marti-Bonmati, Luis [Department of Radiology, MR Section, Dr. Peset University Hospital, Avenida Gaspar Aguilar 90, E-46017 Valencia (Spain)]. E-mail: marti_lui@gva.es; Sanfeliu, Pilar [Cardenal Herrera-CEU University, Alfara, Valencia (Spain)

    2005-06-01

    Objective: The aim of this study was to analyze the hypothetical changes in the 2001 impact factor of 52 radiological journals included in the Science Citation Index-Journal Citation Reports by also counting cites proceeding from 73 Spanish journals on different medical specialties. Also, to estimate the possible impact factor of the official Spanish radiology journal, Radiologia, not included in this database. Materials and methods: A modified 2001 impact factor of 52 radiological journals and Radiologia was obtained by adding the number of cites in 1999 and 2000 from the medical Spanish journals. Data were obtained by consulting the 2001 edition of the Journal Citation Reports in the 'Web of Science' database. Results: The 16,985 bibliographical references were analysed (232 of them to radiological journals). The journal with the largest increase in its 2001 impact factor (from 1.83 to 1.90) was Radiologic Clinics of North America. European Journal of Radiology was the European journal with the highest increase (from 1.084 to 1.110) in the difference between the 2001 modified and original impact factor. The modified 2001 impact factor of the 34 American journals was statistically higher (P = 0.016) than that of the 18 European journals (1.64 versus 0.93). Differences between the 2001 modified and original impact factor were slightly higher in the American journals (no statistically significant difference). The 2001 impact factor of Radiologia was 0.056. Discussion: Differences between the 2001 original and modified impact factor were small, but larger in the American journals. The 2001 impact factor of Radiologia was modest, although similar to other publications included in the Journal Citation Reports.

  2. Impact of Aluminum on Anticipated Corrosion in a Flooded SNF Multi Canister Overpack (MCO)

    Energy Technology Data Exchange (ETDEWEB)

    DUNCAN, D.R.

    1999-07-06

    Corrosion reactions in a flooded MCO are examined to determine the impact of aluminum corrosion products (from aluminum basket grids and spacers) on bound water estimates and subsequent fuel/environment reactions during storage. The mass and impact of corrosion products were determined to be insignificant, validating the choice of aluminum as an MCO component and confirming expectations that no changes to the Technical Databook or particulate mass or water content are necessary.

  3. The radiological impact on the Greater London population of postulated accidental releases from the Sizewell PWR

    CERN Document Server

    Kelly, G N; Charles, D; Hemming, C R

    1983-01-01

    This report contains an assessment of the radiological impact on the Greater London population of postulated accidental releases from the Sizewell PWR. Three of the degraded core accident releases postulated by the CEGB are analysed. The consequences, conditional upon each release, are evaluated in terms of the health impact on the exposed population and the impact of countermeasures taken to limit the exposure. Consideration is given to the risk to the Greater London population as a whole and to individuals within it. The consequences are evaluated using the NRPB code MARC (Methodology for Assessing Radiological Consequences). The results presented in this report are all conditional upon the occurrence of each release. In assessing the significance of the results, due account must be taken of the frequency with which such releases may be predicted to occur.

  4. Measuring and modelling the radiological impact of a phosphogypsum deposition site on the surrounding environment.

    Science.gov (United States)

    Bituh, Tomislav; Petrinec, Branko; Skoko, Božena; Vučić, Zlatko; Marović, Gordana

    2015-03-01

    Phosphogypsum (PG) is a waste product (residue) from the production of phosphoric acid characterized by technologically enhanced natural radioactivity. Croatia's largest PG deposition site is situated at the edge of Lonjsko Polje Nature Park, a sensitive ecosystem possibly endangered by PG particles. This field study investigates two aspects relevant for the general radiological impact of PG: risk assessment for the environment and risk assessment for occupationally exposed workers and local inhabitants. Activity concentrations of natural radionuclides ((238)U, (235)U, (232)Th, (226)Ra, (210)Pb, and (40)K) were measured in the PG (at the deposition site), soil, and grass samples (in the vicinity of the site). The ERICA Assessment Tool was used to estimate the radiological impact of PG particles on non-human biota of the Lonjsko Polje Nature Park. The average annual effective dose for occupationally exposed workers was 0.4 mSv which was within the worldwide range.

  5. Multidisciplinary team meetings and their impact on workflow in radiology and pathology departments.

    LENUS (Irish Health Repository)

    Kane, Bridget

    2007-01-01

    The development of multidisciplinary team meetings (MDTMs) for radiology and pathology is a burgeoning area that increasingly impacts on work processes in both of these departments. The aim of this study was to examine work processes and quantify the time demands on radiologists and pathologists associated with MDTM practices at a large teaching hospital. The observations reported in this paper reflect a general trend affecting hospitals and our conclusions will have relevance for others implementing clinical practice guidelines.

  6. Radiological impact due to natural radionuclides (U and Th-isotopes) in soils from Salamanca, Mexico

    Energy Technology Data Exchange (ETDEWEB)

    Mandujano G, C. D.; Sosa, M. [Universidad de Guanajuato, Division de Ciencias e Ingenierias, Loma del Bosque 103, Col. Lomas del Campestre, 37150 Leon, Guanajuato (Mexico); Mantero, J.; Manjon, G.; Garcia T, R. [Universidad de Sevilla, Grupo en Fisica Nuclear Aplicada, Av. Reina Mercedes No. 2, 41012 Sevilla (Spain); Costilla, R., E-mail: cmandujano@fisica.ugto.mx [Universidad de Guanajuato, Division de Ciencias de la Vida, Departamento de Ciencias Ambientales, Ex-Hacienda El Copal Km 9 Irapuato-Silao, 36500 Irapuato, Guanajuato (Mexico)

    2015-10-15

    Full text: Activity concentrations of U ({sup 238}U, {sup 234}U) and Th ({sup 232}Th, {sup 230}Th) radionuclides in samples of superficial urban soils surrounding an industrial complex in Salamanca, Mexico have been determined. Levels of naturally occurring radionuclides (Norm) in the environment may be affected due to the presence of different industrial activities in this zone, representing a potential radiological risk for the population which should be evaluated. Alpha-particle Spectrometry with Pips detectors has been used for the radiometric characterization. A well established radiochemical procedure was used for the isolation of the radionuclides of interest. Alkali fusion for sample digestion, liquid-liquid extraction with Tbp (tri-butyl-phosphate) for U and Th isolation and electrodeposition in stainless steel dishes for measurement conditioning has been used. The results cover the ranges of 10-42, 12-60, 12-52 and 11-51 Bq·kg{sup -1} for {sup 238}U, {sup 234}U, {sup 230}Th, and {sup 232}Th respectively, being not observed any clear anthropogenic increments in relation with the values normally found in unaffected soils. Although there is disequilibrium between U isotopes and {sup 230}Th in some soil samples, it can be attributed to natural processes. The radiological impact of the industrial activities in the surrounding soils can be then evaluated as very low. Hence, from the Radiological Protection point of view, the soils studied do not represent a radiological risk for the health of the population. (Author)

  7. The Impact of a Combined Cognitive-Affective Intervention on Pre-Service Teachers' Attitudes, Knowledge, and Anticipated Professional Behaviors regarding Homosexuality and Gay and Lesbian Issues

    Science.gov (United States)

    Riggs, Angela D.; Rosenthal, Amy R.; Smith-Bonahue, Tina

    2011-01-01

    The purpose of this study was to assess the impact of a cognitive-affective intervention the attitudes, knowledge, and anticipated professional behaviors regarding homosexuality and gay and lesbian issues of pre-service teachers in the United States. Sixty-seven participants were randomly assigned either to a control group (n=34) or an…

  8. Critical review of methodology and application of risk ranking for prioritisation of food and feed related issues, on the basis of the size of anticipated health impact

    NARCIS (Netherlands)

    Fels-Klerx, van der H.J.; Asselt, van E.D.; Raley, M.; Poulsen, M.; Korsgaard, H.; Bredsdorff, L.; Nauta, M.; Flari, V.; Agostino, D' M.; Coles, D.G.; Frewer, L.J.

    2015-01-01

    This study aimed to critically review methodologies for ranking of risks related to feed/food safety and nutritional hazards, on the basis of their anticipated human health impact. An extensive systematic literature review was performed to identify and characterize the available methodologies for ri

  9. Multidisciplinary team meetings and their impact on workflow in radiology and pathology departments

    Directory of Open Access Journals (Sweden)

    O'Briain D Sean

    2007-06-01

    Full Text Available Abstract Background The development of multidisciplinary team meetings (MDTMs for radiology and pathology is a burgeoning area that increasingly impacts on work processes in both of these departments. The aim of this study was to examine work processes and quantify the time demands on radiologists and pathologists associated with MDTM practices at a large teaching hospital. The observations reported in this paper reflect a general trend affecting hospitals and our conclusions will have relevance for others implementing clinical practice guidelines. Methods For one month, all work related to clinical meetings between pathology and radiology with clinical staff was documented and later analysed. Results The number of meetings to which pathology and radiology contribute at a large university teaching hospital, ranges from two to eight per day, excluding grand rounds, and amounts to approximately 50 meetings per month for each department. For one month, over 300 h were spent by pathologists and radiologists on 81 meetings, where almost 1000 patients were discussed. For each meeting hour, there were, on average, 2.4 pathology hours and 2 radiology hours spent in preparation. Two to three meetings per week are conducted over a teleconferencing link. Average meeting time is 1 h. Preparation time per meeting ranges from 0.3 to 6 h for pathology, and 0.5 to 4 for radiology. The review process in preparation for meetings improves internal quality standards. Materials produced externally (for example imaging can amount to almost 50% of the material to be reviewed on a single patient. The number of meetings per month has increased by 50% over the past two years. Further increase is expected in both the numbers and duration of meetings when scheduling issues are resolved. A changing trend in the management of referred patients with the development of MDTMs and the introduction of teleconferencing was noted. Conclusion Difficulties are being experienced by

  10. Assessment of the radiological impact of a decommissioning nuclear power plant in Italy

    CERN Document Server

    Petraglia, A; De Cesare, M; De Cesare, N; Quinto, F; Terrasi, F; D'Onofrio, A; Steier, P; Fifield, L K; Esposito, A M; 10.1051/radiopro/2012010

    2012-01-01

    The assessment of the radiological impact of a decommissioning Nuclear Power Plant is presented here through the results of an environmental monitoring survey carried out in the area surrounding the Garigliano Power Plant. The levels of radioactivity in soil, water, air and other environmental matrices are shown, in which {\\alpha}, {\\beta} and {\\gamma} activity and {\\gamma} equivalent dose rate are measured. Radioactivity levels of the samples from the Garigliano area are analyzed and then compared to those from a control zone situated more than 100 km away. Moreover, a comparison is made with a previous survey held in 2001. The analyses and comparisons show no significant alteration in the radiological characteristics of the area surroundings the plant, with an overall radioactivity depending mainly from the global fallout and natural sources.

  11. Radiological Impacts and Regulation of Rare Earth Elements in Non-Nuclear Energy Production

    Directory of Open Access Journals (Sweden)

    Timothy Ault

    2015-03-01

    Full Text Available Energy industries account for a significant portion of total rare earth usage, both in the US and worldwide. Rare earth minerals are frequently collocated with naturally occurring radioactive material, imparting an occupational radiological dose during recovery. This paper explores the extent to which rare earths are used by various non-nuclear energy industries and estimates the radiological dose which can be attributed to these industries on absolute and normalized scales. It was determined that typical rare earth mining results in an occupational collective dose of approximately 0.0061 person-mSv/t rare earth elements, amounting to a total of 330 person-mSv/year across all non-nuclear energy industries (about 60% of the annual collective dose from one pressurized water reactor operated in the US, although for rare earth mining the impact is spread out over many more workers. About half of the collective dose from non-nuclear energy production results from use of fuel cracking catalysts for oil refining, although given the extent of the oil industry, it is a small dose when normalized to the energy equivalent of the oil that is used annually. Another factor in energy industries’ reliance on rare earths is the complicated state of the regulation of naturally occurring radiological materials; correspondingly, this paper also explores regulatory and management implications.

  12. An analysis of radiological research publications in high impact general medical journals between 1996 and 2010

    Energy Technology Data Exchange (ETDEWEB)

    Ku, You Jin [Department of Radiology, Kangdong Seong-Sim Hospital, Hallym University College of Medicine, 445 Gil-dong Kangdong-Gu, Seoul 134-701 (Korea, Republic of); Yoon, Dae Young, E-mail: evee0914@chollian.net [Department of Radiology, Kangdong Seong-Sim Hospital, Hallym University College of Medicine, 445 Gil-dong Kangdong-Gu, Seoul 134-701 (Korea, Republic of); Yun, Eun Joo [Department of Radiology, Kangdong Seong-Sim Hospital, Hallym University College of Medicine, 445 Gil-dong Kangdong-Gu, Seoul 134-701 (Korea, Republic of); Baek, Sora [Department of Nuclear Medicine, Kangdong Seong-Sim Hospital, Hallym University College of Medicine, 445 Gil-dong Kangdong-Gu, Seoul 134-701 (Korea, Republic of); Lim, Kyoung Ja; Seo, Young Lan; Choi, Chul Soon; Bae, Sang Hoon [Department of Radiology, Kangdong Seong-Sim Hospital, Hallym University College of Medicine, 445 Gil-dong Kangdong-Gu, Seoul 134-701 (Korea, Republic of)

    2013-06-15

    Highlights: ► Radiologists published only 0.2% of articles in five general medical journals. ► Most original articles from radiologists were funded and were prospective studies. ► Radiology researchers from only 11 countries published at least one original article. -- Abstract: Objective: To evaluate scientific papers published by radiologists in high impact general medical journals between 1996 and 2010. Methods: A MEDLINE search was performed in five high impact general medical journals (AIM, BMJ, JAMA, Lancet, and NEJM) for all articles of which a radiologist was the first author between 1996 and 2010. The following information was abstracted from the original articles: radiological subspecialty, imaging technique used, type of research, sample size, study design, statistical analysis, study outcome, declared funding, number of authors, collaboration, and country of the first author. Results: Of 216 (0.19%) articles were published by radiologists in five general medical journals between 1996 and 2010, 83 were original articles. Fifteen (18.1%) original articles were concerned with the field of vascular/interventional radiology, 24 (28.9%) used combined imaging techniques, 76 (91.6%) were clinical research, 63 (75.9%) had a sample size of >50, 65 (78.3%) were prospective, 78 (94.0%) performed statistical analysis, 83 (100%) showed positive study outcomes, 57 (68.7%) were funded, 49 (59.0%) had from four to seven authors, and 79 (95.2%) were collaborative studies. Conclusions: A very small number (0.19%) in five high impact general medical journals was published by radiologists between 1996 and 2010.

  13. Anticipated regret and precautionary sexual behavior

    NARCIS (Netherlands)

    R. Richard; N.K. de Vries; J. van der Pligt

    1998-01-01

    This study investigated the impact of anticipated regret on precautionary sexual behavior. 317 female and 134 male 18-48 yr old college students completed questionnaires assessing behavioral expectations regarding casual sexual behavior, anticipated regret, perceived behavioral control, attitudes, s

  14. Radiological impact of surface water and sediment near uranium mining sites.

    Science.gov (United States)

    Ivanova, K; Stojanovska, Z; Badulin, V; Kunovska, B; Yovcheva, M

    2015-12-01

    The aim of this study is to assess the radiological impact of surface water and sediment around uranium mining sites 20 years after their closing. The areas under observations are 31 former classical underground uranium mining and exploratory sites in Bulgaria, named as objects. The extraction and processing of uranium ores in the Republic of Bulgaria were ended in 1992. To assess the radiological impact of radionuclides field expeditions were performed to sample water and bottom sediment. The migration of uranium through surface water was examined as one of the major pathways for contamination spread. The range of uranium concentration in water flowing from the mining sites was from 0.012 to 6.8 mgU l(-1) with a geometric mean of 0.192 mgU l(-1). The uranium concentrations in water downstream the mining sites were approximately 3 times higher than the background value (upstream). The concentrations of Unat, (226)Ra, (210)Pb, and (232)Th in the sediment of downstream river were higher than those upstream by 3.4, 2.6, 2, and 1.7 times, respectively. The distribution coefficient of uranium reflects its high mobility in most of the sites. In order to evaluate the impact on people as well as site prioritization for more detailed assessment and water management, screening dose assessments were done.

  15. Financial impact of radiological reports on medical-legal evaluation of compensation for meniscal lesions.

    Science.gov (United States)

    Lelario, M; Ciuffreda, P; Lupo, P; Bristogiannis, C; Vinci, R; Stoppino, L P; De Filippo, M; Macarini, L

    2013-08-01

    To evaluate any discrepancy between radiological reports for clinical purposes and for medicolegal purposes and to quantify its economic impact on repayments made by private insurance companies for meniscal injuries of the knee. The medical records obtained pertaining to 108 knee injury patients (mean age 43.3 years) assessed over a period of 12 months were analysed. Clinical medical reports, aimed at assessing the lesion, and medicolegal reports, drawn up with a view to quantifying compensation, were compared. Unlike reports for clinical purposes in reports for medicolegal purposes, in the evaluation of meniscal lesions, in addition to morphological features of lesions, chronological, topographical, severity and exclusion criteria were applied. To estimate the economic impact resulting from the biological damage, we consulted an actuarial table based on the 9-point minor incapacity classification system. Meniscal lesions not compatible with a traumatic event and therefore not eligible for an insurance payout were found in 56 patients. Of these, 37 failed exclusion criteria, while 19 failed to meet chronological criteria. This difference resulted in a reduction in compensation made by private insurance companies with savings estimated with a saving between euro 203,715.41 and euro 622,315.39. The use of a clinical report for medicolegal purposes can be a source of valuation error, as chronological and/or dynamic information regarding the trauma mechanism may be lacking. Therefore, the use of a full radiological appraisal allows a better damage's assessment and an adequate compensation for injuries.

  16. An assessment of the external radiological impact in areas of Greece with elevated natural radioactivity.

    Science.gov (United States)

    Florou, H; Trabidou, G; Nicolaou, G

    2007-01-01

    In the present study, the radiological impact assessment in three selected areas of elevated natural radioactivity in Greece is attempted, based on measurements, theoretical relations, and simple model application. These areas are Milos--an island of volcanic origin in Cyclades Archipelago, Ikaria--an island in the Eastern Aegean Sea and Loutraki--a coastal area in mainland Greece. These areas are characterized by their geothermal springs and vents, which emit fluids into the littoral and sublittoral zones. The results include: (a) the exposure dose rates assessed by a car-borne scintillation spectrometry system; (b) laboratory measurements of the activity concentrations of the gamma-emitters of 238U and 232Th series and 40K in soil, spring water, seawater and sediments by gamma-spectrometry; (c) estimations of the effective dose rate equivalents and health risk assessment for humans and external dose rates for natural aquatic populations in relation to organism habitat; and (d) a radiological evaluation for the environmental quality, in terms of the discrete zones of impact of ionizing radiation.

  17. Investigation of the radiological impact on the coastal environment surrounding a fertilizer plant.

    Science.gov (United States)

    El Samad, O; Aoun, M; Nsouli, B; Khalaf, G; Hamze, M

    2014-07-01

    This investigation was carried out in order to assess the marine environmental radioactive pollution and the radiological impact caused by a large production plant of phosphate fertilizer, located in the Lebanese coastal zone. Natural radionuclides ((238)U, (235)U, (232)Th, (226)Ra, (210)Po, (210)Pb, (40)K) and anthropogenic (137)Cs were measured by alpha and gamma spectrometry in seawater, sediment, biota and coastal soil samples collected from the area impacted by this industry. The limited environmental monitoring program within 2 km of the plant indicates localized contamination with radionuclides of the uranium decay chain mainly due to the transport, the storage of raw materials and the free release of phosphogypsum waste.

  18. Experimental approaches to assessing the impact of a cesium chloride radiological dispersal device

    Science.gov (United States)

    Lee, S.; Gibb, Snyder E.; Barzyk, J.; McGee, J.; Koenig, A.

    2008-01-01

    The US EPA, as a part of the Chemical, Biological, Radiological-Nuclear, and Explosives (CBRNE) Research and Technology Initiative (CRTI) project team, is currently working to assess the impacts of an urban radiological dispersion device (RDD) and to develop containment and decontamination strategies. Three efforts in this area are currently underway: development of a laboratory-scale cesium chloride deposition method to mimic a RDD; assessment of cesium (Cs) penetration depth and pathways in urban materials using two dimensional (2-D) mapping laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS); and experimental determination of distribution coefficients (kd) for Cs in water-building material systems. It is critical that, when performing laboratory-scale experiments to assess the fate of Cs from an RDD, the Cs particle deposition method mimics the RDD deposition. Once Cs particles are deposited onto urban surfaces, 2-D mapping of Cs concentrations using LA-ICP-MS is a critical tool for determining Cs transport pathways through these materials. Lastly, distribution coefficients are critical for understanding the transport of Cs in urban settings when direct measurements of its penetration depth are unavailable. An assessment of the newly developed deposition method along with preliminary results from the penetration experiments are presented in this paper.

  19. The impact of the Patient Protection and Affordable Care Act on radiology: beyond reimbursement.

    Science.gov (United States)

    Krishnaraj, Arun; Norbash, Alexander; Allen, Bibb; Ellenbogen, Paul H; Kazerooni, Ella A; Thorwarth, William; Weinreb, Jeffrey C

    2015-01-01

    The 2014 ACR Forum focused on the noneconomic implications of the Affordable Care Act on the field of radiology, with specific attention to the importance of the patient experience, the role of radiology in public and population health, and radiology's role in the effort to lower overall health care costs. The recommendations generated from the Forum seek to inform ACR leadership on the best strategies to pursue to best prepare the radiology community for the rapidly evolving health care landscape.

  20. A comparison between various radiological techniques in the localization and analysis of impacted and supernumerary teeth

    Directory of Open Access Journals (Sweden)

    Christoph M Ziegler

    2013-01-01

    Full Text Available Background and Objectives: An increasing number of different types of commercial cone-beam computed tomography (CBCT devices are available for three-dimensional (3D imaging in the field of dental and maxillofacial radiology. When removing impacted or supernumerary teeth, surgical teams often operate adjacent significant anatomical structures such as nerves, vessels, adjacent teeth roots, and paranasal sinuses. It is therefore important to choose the appropriate surgical approach to avoid iatrogenic damage to the essential anatomical neighbouring structures. CBCT, also called digital volume tomography (DVT, can visualize impacted and supernumerary teeth in all standard planes, as well as multisectional 3D views. These devices have shown to be highly beneficial in the assessment of small bony lesions and maxillofacial injuries. However, it is still necessary to determine the effectiveness of such devices in the assessment of impacted and supernumerary teeth, in comparison to the conventional radiological methods of intraoral X-rays and panoramic X-rays. Materials and Methods: During a period of 2 years, a total of 61 patients of whom majority had impacted teeth or supernumerary elements in the frontal maxillary region were studied with CBCT and treated at the St. Olavs University Hospital. Patients were referred to our Department of Oral and Maxillofacial Surgery with both conventional and digital intraoral X-rays and/or panoramic X-rays. None had any acute infections or odontogenic abscesses, and most presented with asymptomatic impacted tooth. A comparison between the preoperative conventional and the CBCT images, the resulting diagnoses, and the intraoperative findings as "gold standard" were made and recorded in a compiled scoring sheet. The objects of interest were researched with the magnification method. Each patient was identified only with a patient number. Results: In contrast to the conventional X-rays, the pre-surgical evaluation with

  1. Comparative Case Study as Social Impact Assessment: Possibilities and Limitations for Anticipating Social Change in the Far North

    Science.gov (United States)

    Asselin, Jodie; Parkins, John R.

    2009-01-01

    Social impact assessment (SIA) is increasingly an accepted component of environmental impact assessment and project evaluation throughout North America. Tools and methodologies utilized to conduct such assessments vary greatly and continue to evolve with time and experience. This paper follows the evolution of case study methods in social impact…

  2. Function, anticipation, representation

    Science.gov (United States)

    Bickhard, Mark. H.

    2001-06-01

    Function emerges in certain kinds of far-from-equilibrium systems. One important kind of function is that of interactive anticipation, an adaptedness to temporal complexity. Interactive anticipation is the locus of the emergence of normative representational content, and, thus, of representation in general: interactive anticipation is the naturalistic core of the evolution of cognition. Higher forms of such anticipation are involved in the subsequent macro-evolutionary sequence of learning, emotions, and reflexive consciousness.

  3. Anticipated Impact of In-Car Mobile Calls on the Electromagnetic Interaction of Handset Antenna and Human

    OpenAIRE

    Salah I. Yahya

    2014-01-01

    This paper investigates the impact of the in-car mobile call on the electromagnetic interaction of the mobile handset antenna and user’s head. This impact was evaluated from two different perspectives; First, the antenna performance, e.g., total isotropic sensitivity and total efficiency, and second, the specific absorption rate (SAR) induced in the user's head. A Yee-FDTD based electromagnetic solver was used to simulate a mobile phone in hand close proximity to head at cheek and tilt positi...

  4. Impacted Mandibular Third Molars: Review of Literature and a Proposal of a Combined Clinical and Radiological Classification

    Science.gov (United States)

    Santosh, P

    2015-01-01

    Tooth impaction is a pathological situation where a tooth fails to attain its normal functional position. Impacted third molars are commonly encountered in routine dental practice. The impaction rate is higher for third molars when compared with other teeth. The mandibular third molar impaction is said to be due to the inadequate space between the distal of the second mandibular molar and the anterior border of the ascending ramus of the mandible. Impacted teeth may remain asymptomatic or may be associated with various pathologies such as caries, pericoronitis, cysts, tumors, and also root resorption of the adjacent tooth. Even though various classifications exist in the literature, none of those address the combined clinical and radiologic assessment of the impacted third molar. Literature search using the advanced features of various databases such as PubMed, Scopus, Embase, Google Scholar, Directory of Open Access Journals and Cochrane electronic databases was carried out. Keywords like impaction, mandibular third molar, impacted mandibular third molar, complications, anatomy, inferior alveolar nerve injury, lingual nerve injury were used to search the databases. A total of 826 articles were screened, and 50 articles were included in the review which was obtained from 1980 to February 2015. In the present paper, the authors have proposed a classification based on clinical and radiological assessment of the impacted mandibular third molar. PMID:26229709

  5. Radiological impact of the exploitation of the CENTRACO nuclear facility of SOCODEI; Impact radiologique de l'exploitation de l'INB CENTRACO de SOCODEI

    Energy Technology Data Exchange (ETDEWEB)

    Chevalier, Ch. [SOCODEI, Dir. Surete Qualite, 95 - Cergy Pontoise (France)

    2001-07-01

    In spite of a experience feedback still limited, the two first years of operation show that the radiological impact of the exploitation of Centraco is low both at the level of dosimetry for workers and level of radioactive release in environment. (N.C.)

  6. Radiological Impact Study of the Coal-Fired Power Plant of Narcea

    Energy Technology Data Exchange (ETDEWEB)

    Robles, B.; Baeza, A.; Mora, J. a.; Corbacho, J. a.; Trueba, C.; Guillen, J.; Rodriguez, Miralles, Y.

    2014-04-01

    Coal, fuel used in thermal power plants for electricity production, contains variable concentrations of naturally occurring radionuclides from natural disintegration series of {sup 2}38U, {sup 2}35U, {sup 2}32Th and also the 40K, which are enhanced in the wastes and coproducts due to the industrial process. For this reason, natural radionuclides which are part of the noncombustible fraction of coal, except those volatiles which incorporate directly to the flue gases, concentrates and are partitioned between fly ashes and bottom ashes. This enhancement could cause, to the workers of the installation and to members of the public around the plant, an increase in the exposure which should be assessed under the radiation protection point of view. Present report collect the results obtained from a screening assessment of the radiological impact derived from the normal operation of the Narcea coal-fired power plant. The project where this assessment was performed is part of a bigger project which is jointly developed by the Unit of Radiation Protection of the Public and the Environment (UPRPYMA) of CIEMAT and the Environmental Radioactivity Laboratory of the Extremadura University (LARUEX) in agreement with the Spanish Association of the Electrical Industry (ENUSA). (Author)

  7. Investigation of the activity level and radiological impacts of naturally occurring radionuclides in blast furnace slag.

    Science.gov (United States)

    Uğur, F A; Turhan, S; Sahan, H; Sahan, M; Gören, E; Gezer, F; Yeğingil, Z

    2013-01-01

    The activity level and possible radiological impacts of naturally occurring radionuclides on the health of workers and members of the public, as a result of utilisation of blast furnace slag (BFS) samples as a substitute for aggregate in road construction were investigated by using a gamma-ray spectrometer and potential exposure scenarios given in Radiation Protection 122. The mean activity concentrations of the (226)Ra, (232)Th and (40)K in BFS samples were found to be 152.4, 54.9 and 183.1 Bq kg(-1), respectively. These values are compared with typical values measured in BFS samples from the European Union countries, which are 270, 70 and 240 Bq kg(-1) for (226)Ra, (232)Th and (40)K, respectively. The values of radium equivalent activity index calculated for BFS samples were within the recommended safety limits. The highest total annual effective doses evaluated as 0.9 and 0.4 mSv y(-1) for members of the public and workers, respectively, were lower than the annual limit of 1 mSv y(-1).

  8. Radiological impact of the application of phosphogypsum in civil construction: an overview of Brazilian studies

    Energy Technology Data Exchange (ETDEWEB)

    Campos, Marcia P.; Nisti, Marcelo B.; Maduar, Marcelo F.; Mazzilli, Barbara P., E-mail: mpcampos@ipen.br [Instituto de Pesquisas Energeticas e Nucleares (lPEN/CNEN-SP), Sao Paulo, SP (Brazil)

    2013-07-01

    In the last decades considerable attention has been given to naturally occurring radioactive material (NORM). Within this frame, of particular concern is the phosphate fertilizer industry. In Brazil, four main industries (Ultrafertil, Copebras, Fosfertil and Bunge Fertilizantes) are responsible for the production of 1.2 x 10{sup 6} tons per year of P{sub 2}O{sub 5}. Phosphogypsum is the byproduct of the phosphoric acid industry, obtained by reacting phosphate rock with sulphuric acid. This waste is stockpiled in the surrounding environment of the facilities at a rate of 5.5 x 10{sup 6} tons per year. The level of radioactivity present in the phosphogypsum, among other impurities, prevents its reuse for a variety of purposes. All the countries that produce phosphate fertilizer by acid wet processing of phosphate rock are facing the same problem of finding solutions for the safe application of phosphogypsum, in order to minimize the impact caused by its disposal. This paper aims to present a review of the research carried out at Instituto de Pesquisas Energeticas e Nucleares (IPEN), Sao Paulo, Brazil, focusing in the radiological implications of using Brazilian phosphogypsum as building material: bricks and plaster. The results and conclusions achieved can contribute to the development or national standards and guidelines concerning the safe use and management or phosphogypsum as a building material. (author)

  9. The impact of radiology expertise upon the localization of subtle pulmonary lesions

    Science.gov (United States)

    Robinson, John W.; Brennan, Patrick C.; Mello-Thoms, Claudia; Lewis, Sarah J.

    2016-03-01

    radiology does significantly impact upon the sensitivity of radiologists in detecting pulmonary lesions of varying subtlety. Thoracic radiologists had a consistently higher sensitivity with subtle, very subtle and extremely subtle nodules.

  10. Anticipated Impact of In-Car Mobile Calls on the Electromagnetic Interaction of Handset Antenna and Human

    Directory of Open Access Journals (Sweden)

    Salah I. Yahya

    2014-09-01

    Full Text Available This paper investigates the impact of the in-car mobile call on the electromagnetic interaction of the mobile handset antenna and user’s head. This impact was evaluated from two different perspectives; First, the antenna performance, e.g., total isotropic sensitivity and total efficiency, and second, the specific absorption rate (SAR induced in the user's head. A Yee-FDTD based electromagnetic solver was used to simulate a mobile phone in hand close proximity to head at cheek and tilt positions, and working at a frequency of 1900 MHz (GSM 1900/PCS while making a call inside a car. A Specific Anthropomorphic Mannequin (SAM was used to simulate the user’s head, a generic phone was used to simulate the mobile phone, a semi-realistic model with three tissues, i.e., skin, bone and muscle, was used to simulate the user’s hand, and a CAD model of Ferrari F430-brand was used to simulate the car. The results showed a considerable degradation in the mobile phone antenna performance while making a mobile phone call inside a car that may drive the mobile phone increases its radiated power to establish a successful connection with the base-station antenna, and consequently increases the induced specific absorption rate in the user’s head.

  11. Negative impacts of high temperatures on growth of black spruce forests intensify with the anticipated climate warming

    Science.gov (United States)

    Girardin, M. P.; Hogg, T.; Kurz, W.; Bernier, P. Y.; Guo, X. J.; Cyr, G.

    2015-12-01

    An increasing number of studies conclude that water limitations and heat stress may hinder the capacity of black spruce (Picea mariana (Mill.) B.S.P.) trees, a dominant species of Canada's boreal forests, to grow and assimilate atmospheric carbon. However, there is currently no scientific consensus on the future of these forests over the next century in the context of widespread climate warming. The large spatial extent of black spruce forests across the Canadian boreal forest and associated variability in climate, demography and site conditions pose challenges for projecting future climate change responses. Here we provide an evaluation of the impacts of climate warming and drying, as well as increasing [CO2], on the aboveground productivity of black spruce forests across Canada south of 60ºN for the period 1971 to 2100. We use a new extensive network of tree-ring data obtained from Canada's National Forest Inventory, spatially-explicit simulations of Net Primary Productivity (NPP) and its drivers, and multivariate statistical modelling. We found that soil water availability is a significant driver of black spruce inter-annual variability in productivity across broad areas of the western to eastern Canadian boreal forest. Inter-annual variability in productivity was also found to be driven by autotrophic respiration in the warmest regions. In most regions, the impacts of soil water availability and respiration on inter-annual variability in productivity occurred during the phase of carbohydrate accumulation the year preceding tree ring formation. Results from projections suggest an increase in the importance of soil water availability and respiration as limiting factors on NPP over the next century due to warming, but this response may vary to the extent that other factors such as carbon dioxide fertilization, and respiration acclimation to high temperature, contribute to dampening these limitations.

  12. Negative impacts of high temperatures on growth of black spruce forests intensify with the anticipated climate warming.

    Science.gov (United States)

    Girardin, Martin P; Hogg, Edward H; Bernier, Pierre Y; Kurz, Werner A; Guo, Xiao Jing; Cyr, Guillaume

    2016-02-01

    An increasing number of studies conclude that water limitations and heat stress may hinder the capacity of black spruce (Picea mariana (Mill.) B.S.P.) trees, a dominant species of Canada's boreal forests, to grow and assimilate atmospheric carbon. However, there is currently no scientific consensus on the future of these forests over the next century in the context of widespread climate warming. The large spatial extent of black spruce forests across the Canadian boreal forest and associated variability in climate, demography, and site conditions pose challenges for projecting future climate change responses. Here we provide an evaluation of the impacts of climate warming and drying, as well as increasing [CO2 ], on the aboveground productivity of black spruce forests across Canada south of 60°N for the period 1971 to 2100. We use a new extensive network of tree-ring data obtained from Canada's National Forest Inventory, spatially explicit simulations of net primary productivity (NPP) and its drivers, and multivariate statistical modeling. We found that soil water availability is a significant driver of black spruce interannual variability in productivity across broad areas of the western to eastern Canadian boreal forest. Interannual variability in productivity was also found to be driven by autotrophic respiration in the warmest regions. In most regions, the impacts of soil water availability and respiration on interannual variability in productivity occurred during the phase of carbohydrate accumulation the year preceding tree-ring formation. Results from projections suggest an increase in the importance of soil water availability and respiration as limiting factors on NPP over the next century due to warming, but this response may vary to the extent that other factors such as carbon dioxide fertilization, and respiration acclimation to high temperature, contribute to dampening these limitations.

  13. A regulatory perspective on the radiological impact of NORM industries: the case of the Spanish phosphate industry

    Energy Technology Data Exchange (ETDEWEB)

    Garcia-Talavera, M., E-mail: mgtm@csn.e [Consejo de Seguridad Nuclear (CSN), Justo Dorado, 11, E-28040 Madrid (Spain); Matarranz, J.L.M.; Salas, R.; Ramos, L. [Consejo de Seguridad Nuclear (CSN), Justo Dorado, 11, E-28040 Madrid (Spain)

    2011-01-15

    Radioactive and chemical risks coexist in NORM industries although they are usually addressed separately by regulations. The European Union (EU) has developed extensive legislation concerning both matters, which has been diversely reflected in national policies. We consider the case of the Spanish phosphate industry and analyse to which extent regulatory mandates have reduced the historical and ongoing radiological impact on the environment of phosphate facilities. Although no specific radiological constraints on effluent monitoring and release or on waste disposal have yet been imposed on NORM industries in Spain, other environmental regulations have achieved a substantial reduction on the phosphate industry impact. Nevertheless, a more efficient control could be established by eliminating the current conceptual and practical separation of chemical and radioactive risks in NORM industries. We highlight research needs to accomplish so and propose shorter-term measures that require active cooperation among the regulatory bodies involved. - Research highlights: {yields} The radiological impact of the Spanish phosphate industry has substantially decreased as a side result of environmental regulations on chemical pollution.{yields} A more efficient control of NORM industries could be established by eliminating the current conceptual and practical separation of chemical and radioactive risks.{yields} Further research is needed on how interactions between radiation and chemicals might affect regulatory limits and on a systematic way to input stakeholder preferences in MCDA.{yields} On shorter-term, administrative measures that require active cooperation among the regulatory bodies involved can be taken.

  14. Dynamic Modeling of the Economic Impacts of a Terrorist Attack using a Radiological Dispersion Device

    Science.gov (United States)

    2009-03-01

    combined, the model uses historical examples of responses from the September 11 attacks, the Three Mile Island and Goiania , Brazil incidents, natural...radiological incidents is gathered from the Goiania , Brazil, Chernobyl, and Three Mile Island incidents. “The tragic radiological accident that occurred...treated for radiation burns, and 249 others were exposed to the cesium 137 radiation. Mass panic ensued across Goiania as the result of the incident

  15. Inverse anticipating chaos synchronization.

    Science.gov (United States)

    Shahverdiev, E M; Sivaprakasam, S; Shore, K A

    2002-07-01

    We derive conditions for achieving inverse anticipating synchronization where a driven time-delay chaotic system synchronizes to the inverse future state of the driver. The significance of inverse anticipating chaos in delineating synchronization regimes in time-delay systems is elucidated. The concept is extended to cascaded time-delay systems.

  16. Transmission dynamics of carbapenemase-producing Klebsiella pneumoniae and anticipated impact of infection control strategies in a surgical unit.

    Directory of Open Access Journals (Sweden)

    Vana Sypsa

    Full Text Available BACKGROUND: Carbapenemase-producing Klebsiella pneumoniae (CPKP has been established as important nosocomial pathogen in many geographic regions. Transmission from patient to patient via the hands of healthcare workers is the main route of spread in the acute-care setting. METHODOLOGY/PRINCIPAL FINDINGS: Epidemiological and infection control data were recorded during a prospective observational study conducted in a surgical unit of a tertiary-care hospital in Greece. Surveillance culture for CPKP were obtained from all patients upon admission and weekly thereafter. The Ross-Macdonald model for vector-borne diseases was applied to obtain estimates for the basic reproduction number R(0 (average number of secondary cases per primary case in the absence of infection control and assess the impact of infection control measures on CPKP containment in endemic and hyperendemic settings. Eighteen of 850 patients were colonized with CPKP on admission and 51 acquired CPKP during hospilazation. R(0 reached 2 and exceeded unity for long periods of time under the observed hand hygiene compliance (21%. The minimum hand hygiene compliance level necessary to control transmission was 50%. Reduction of 60% to 90% in colonized patients on admission, through active surveillance culture, contact precautions and isolation/cohorting, in combination with 60% compliance in hand hygiene would result in rapid decline in CPKP prevalence within 8-12 weeks. Antibiotics restrictions did not have a substantial benefit when an aggressive control strategy was implemented. CONCLUSIONS/SIGNIFICANCE: Surveillance culture on admission and isolation/cohorting of colonized patients coupled with moderate hand hygiene compliance and contact precautions may lead to rapid control of CPKP in endemic and hyperendemic healthcare settings.

  17. Impact of case-based radiology education on first-year medical students knowledge, perceptions, and interests in the field of radiology

    Directory of Open Access Journals (Sweden)

    Aaron Rohr

    2017-02-01

    Full Text Available Medical training institutions utilize a variety of approaches to present specialty educational material such as radiology. Typically, this material is introduced during the latter years of medical school and includes interactive modules, individual contexts, and case-based learning. This is a quasiexperimental study designed to evaluate the effectiveness of case-based radiology education presented to first-year medical students. Pre- and post-surveys were administered to measure changes in knowledge, perceptions of, and career interest in radiology. The results suggest that the use of case-based learning may improve medical students’ perceived knowledge of radiology and perceived importance of radiologists in the patient care process.

  18. Radiological impact of almost a century of phosphate industry in Flanders, Belgium.

    Science.gov (United States)

    Paridaens, J; Vanmarcke, H

    2008-10-01

    In Belgium, since about 1920, the phosphate industry has been an important industrial activity. It is principally situated in Flanders, the northern part of Belgium, and produces mainly phosphoric acid, fertilizers, and cattle food. At its height, between 1980 and 1990, it processed between 1.5 and 2.0 Mt of phosphate ore of varying origin per year. In total, more than 60 Mt of ore were handled, containing about 72 TBq of 226Ra and 3.5 TBq of 232Th. Three different processing techniques in six large production sites gave rise to 50 Mt of phosphogypsum and 2.7 Mt of calcium fluoride sludge, all mainly stored on large deposits. In addition, limited recycling of phosphogypsum as building material has occurred in the past. Also, 10 Mt of phosphogypsum was discharged into a large tidal river. One plant still produces 0.25 Mt of gypsum per year. Liquid effluents, containing 13 TBq of radium chloride, were discharged into two small rivers, thus contaminating over 200 ha of land. Approximately 8 TBq of 226Ra and 0.6 TBq thorium ended up in finished products such as fertilizers. Despite these large production figures, so far the radiological impact for the Flemish population has been limited, but this might worsen in the future. The major risk consists in establishing residential areas on land that is contaminated with 226Ra because of liquid effluents or on forgotten gypsum deposits. Doing so might lead to enhanced indoor radon concentrations. In three isolated cases, we found houses built on gypsum deposits where the increased indoor radon levels raised the annual radiation dose to the inhabitants by about 4 mSv.

  19. Environmental radiological impact of a Brazilian deactivated Uranium Mine along the period 1999-2009

    Energy Technology Data Exchange (ETDEWEB)

    Pereira, W.S., E-mail: wspereira@inb.gov.br [Industrias Nucleares do Brasil (FCN/GMR/INB), Resende, RJ (Brazil). Fabrica de Combustivel Nuclear. Grupo Multidisciplinar de Radioprotecao; Kelecom, A., E-mail: lararapls@hotmail.com [Universidade Federal Fluminense (LARARA-PLS/UFF), Niteroi, RJ (Brazil). Laboratorio de Radiobiologia e Radiometria Pedro Lopes dos Santos; Silva, A.X., E-mail: ademir@con.ufrj.br [Corrdenacao dos Programas de Pos-Graduacao em Engenharia (COPPE), Rio de Janeiro, RJ (Brazil). Programa de Engenharia Nuclear. Departamento de Engenharia Nuclear

    2015-07-01

    This study aims to assess the environmental radiological impact (ERI) from the release of wastewaters used by the Mining Industrial Complex at Poços de Caldas (CIPC), today called Ore Treatment Unit (UTM) in Caldas, MG, Brazil, during the period 1999-2009. The effluent waters were analyzed once a week at point 014 (associated with the mine and waste pile 8). Critical radionuclides are {sup 238}U, {sup 226}Ra, {sup 210}Pb, {sup 232}Th and {sup 228}Ra. The {sup 238}U and {sup 232}Th were analyzed by spectrophotometry. The {sup 226}Ra, {sup 210}Pb and {sup 228}Ra, in turn, were analyzed by radiochemical separation methods and subsequent radiometry. The dose estimates were based on the model proposed by the National Nuclear Energy Commission (CNEN) for a hypothetical critical group associated with the point of effluents release into the river Ribeirao das Antas (point 014). The maximum dose rate allowed by CNEN for release is equal to 0.3 mSv·y{sup -1}for individuals of the critical group. Our calculations were performed using the average concentration along the ten years period study. The estimated dose value for the individual of the critical group was 0.12 mSv·y{sup -1}. It may be concluded that the reference levels established by CNEN were not reached. This indicates that the treatment of effluents generated by the CIPC/UTM was conducted efficiently, ensuring the safety of the population living in the surroundings of the Ore Processing Unit (UTM) at Caldas. (author)

  20. NOAA's contribution to an informed society anticipating and responding to climate and its impacts through Climate.gov

    Science.gov (United States)

    Niepold, F.

    2012-12-01

    Societal concern about the impacts of climate change is growing. Citizens in public and private sectors want easy access to credible climate science information to help them make informed decisions affecting their lives and livelihoods. Weather and climate influences almost every sector of society, and affects up to 40 percent of the United States' 10 trillion annual economy. (NRC report, 2003 entitled "Satellite Observations of the Earth's Environment: Accelerating the Transition of Research to Operations"). As the leading provider of climate, weather, and water information to the nation and the world, NOAA is a logical source for citizens to turn to for climate information. NOAA must expand and improve the way it communicates, educates, reaches out to, and engages with public stakeholders to better meet the nation's needs for timely, authoritative climate data and information. Citizens are increasingly going online to seek credible, authoritative climate information. However, users report having difficulty locating and using NOAA's online data products and services. Thus, resolving this online accessibility issue will be one of the Climate Portal's main benefits. The use of portal technology and emerging data integration and visualization tools provide an opportunity for NOAA to bring together multiple datasets from diverse disciplines and sources to deliver a more comprehensive picture of climate in the context of affected resources, communities and businesses. Additional benefits include wider extension of NOAA's data to other media such as television and free-choice learning venues, thereby increasing public exposure and engagement. The Climate Portal teams take an audience-focused approach to promoting climate science literacy among the public. The program communicates the challenges, processes, and results of NOAA-supported climate science through stories and data visualizations on the Web and in popular media. They provide information to a range of

  1. Radiological impact associated with the transport by road of radioactive material in Spain; Impact radiologique lie au transport par route de matieres radioactives en Espagne

    Energy Technology Data Exchange (ETDEWEB)

    Calleja, J.A. [TECNATOM, Prevention Service, Avenida Montes de Oca 1, 28703 San Sebastian de los Reyes, Madrid (Spain); EUITI, Dept. Electrical Engineering, Polytechnic University of Madrid (Spain); Gutierrez, F. [EUITI, Dept. Industrial and Polymer Chemistry, Polytechnic University of Madrid, Madrid (Spain)

    2011-07-15

    Questions relating to the transport of radioactive materials are very much an issue of current interest due to the increasing mobility of the materials involved in the nuclear fuel cycle, commitment to the environment, the safety and protection of persons and the corresponding regulatory legal framework. The radiological impact associated with this type of transport was assessed by means of a new data-processing tool that may be of use and serve as complementary documentation to that included in transport regulations. Thus, by determining the level of radiation at a distance of one metre from the transport vehicle and by selecting a route, the associated impacts will be obtained, such as the affected populations, the dose received by the most highly exposed individual, the overall radiological impact, the doses received by the population along the route and the possible detriment to their health. The most important conclusion is that the emissions of ionising radiation from the transport of radioactive material by road in Spain are not significant as regards the generation of adverse effects on human health, and that their radiological impact may be considered negligible. (authors)

  2. Anticipation and medicine

    CERN Document Server

    2017-01-01

    In this book, practicing physicians and experts in anticipation present arguments for a new understanding of medicine. Their contributions make it clear that medicine is the decisive test for anticipation. The reader is presented with a provocative hypothesis: If medicine will align itself with the anticipatory condition of life, it can prompt the most important revolution in our time. To this end, all stakeholders—medical practitioners, patients, scientists, and technology developers—will have to engage in the conversation. The book makes the case for the transition from expensive, and only marginally effective, reactive treatment through “spare parts” (joint replacements, organ transplants) and reliance on pharmaceuticals (antibiotics, opiates) to anticipation-informed healthcare. Readers will understand why the current premise of treating various behavioral conditions (attention deficit disorder, hyperactivity, schizophrenia) through drugs has to be re-evaluated from the perspective of anticipation...

  3. Monitoring of the radiological environmental impact of the AREVA site of Tricastin; Suivi de l'impact radiologique environnemental des activites du site AREVA du Tricastin

    Energy Technology Data Exchange (ETDEWEB)

    Mercat, C.; Brun, F.; Florens, P.; Petit, J. [AREVA NC Pierrelatte, Direction surete environnement du site du Tricastin, 26 (France); Garnier, F. [EURODIF Production, Direction qualite securite surete environnement, 26 (France); Devin, P. [AREVA NC Pierrelatte, Direction surete, sante, securite, environnement, 26 (France)

    2010-06-15

    Set up at the beginning of the site's operations, in 1962, the monitoring of the radiological environmental impact of the AREVA site of Tricastin has evolved over time to meet more specifically the multiple objectives of environmental monitoring: to prove the respect of the commitments required by the authorities, to be able to detect a dysfunction in the observed levels, to enable the assessment of impacts of industrial activities, to ensure the balance between environmental quality and the use made by the local population and to inform the public of the radiological state of the environment. Thousands of data were acquired on the radioactivity of all environmental compartments as well as on the functioning of local ecosystems. Today, the Network of Environmental Monitoring of AREVA Tricastin goes beyond the requirements of routine monitoring to provide innovative solutions for monitoring the radioactivity (especially for uranium) in the environment. (author)

  4. Radiological impact associated to the use of phosphogypsum in crops cultivated at the Cerrado region

    Energy Technology Data Exchange (ETDEWEB)

    Oliveira, Kerley A.P. [Centro de Desenvolvimento da Tecnologia Nuclear (CDTN/CNEN-MG), Belo Horizonte, MG (Brazil). Pos-Graduacao em Ciencia e Tecnologia das Radiacoes, Minerais e Materiais], E-mail: kapo@cdtn.br; Menezes, Maria A.B.C. [Centro de Desenvolvimento da Tecnologia Nuclear (CDTN/CNEN-MG), Belo Horizonte, MG (Brazil). Div. de Tecnologia das Radiacoes. Servico de Reator e Irradiacoes], E-mail: menezes@cdtn.br; Taddei, Maria H.T. [Comissao Nacional de Energia Nuclear (CNEN/LAPOC), Pocos de Caldas, MG (Brazil). Lab. de Radioquimica], E-mail: mhtaddei@cnen.gov.br; Mello, Jaime W.V. [Universidade Federal de Vicosa (UFV), MG (Brazil). Dept. de Solos], E-mail: jwvmello@ufv.br; Jacomino, Vanusa M.F. [Centro de Desenvolvimento da Tecnologia Nuclear (CDTN/CNEN-MG), Belo Horizonte, MG (Brazil). Servico de Meio Ambiente e Tecnicas Nucleares], E-mail: vmfj@cdtn.br

    2007-07-01

    Phosphogypsum (PG) is a by-product of the 'wet process', whereby sulfuric acid is reacted with phosphate rock to produce phosphoric acid. The Brazilian production of this material is around 12 million of tons per year which is stacked in piles at the same place where it is produced. Researches accomplished in several countries worldwide have demonstrated the potential use of PG in agriculture not only as a source for calcium and sulfur, but also as a conditioner for soils that contain high levels of aluminum. In Brazil, these studies are mainly focused on the application of phosphogypsum to the Cerrado region, the main agriculture region of the country. Taking into account the presence of natural radionuclides in this material and the fact that the mobility and bioaccumulation of these elements can vary significantly with changes in climate, a research project has been conducted in a partnership with the Brazilian Nuclear Energy Commission (CNEN) and the Soil Department of Vicosa Federal University in order to investigate the radiological impact of using phosphogypsum in crops cultivated in Cerrado soils. For this purpose a set of greenhouse experiments have been conducted in two types of soil (one clayey and other sandy loam textured) to determine the transfer factor of natural radionuclides ({sup 238}U, {sup 232}Th, {sup 226}Ra, {sup 228}Ra and {sup 210}Pb) from soil to crops (lettuce, corn and soybean) and drainage waters. This paper aims to report preliminary results of the study, including the chemical, physical and mineralogical characterization of the soil samples, and radioactivity concentration in both the applied PG and soil samples. The measurement of {sup 232}Th concentration has been carried out by neutron activation analysis, {sup 238}U by delayed neutron counting technique, {sup 226}Ra, {sup 228}Ra and {sup 210}Pb by the method of radiochemical separation. The mean activity concentrations of {sup 226}Ra (240 Bq.kg{sup -1}) and {sup 228}Ra

  5. An Integrated Approach to Evaluating the Environmental Impact Following a Radiological Dispersal Event

    Science.gov (United States)

    2006-06-01

    unplugged : twenty years of process. Risk-Analysis, 15, 137-145. Ford, J. L. (1998). Radiological Dispersal Devices, Assessing the Transnational Threat...management teaches us about ecosystem management. Landscape and Urban Planning, 40, 141-150. Sj6berg, L. (2003). Attitudes and risk perceptions of

  6. The impact of European research ethics legislation on UK radiology research activity: a bibliometric analysis

    Energy Technology Data Exchange (ETDEWEB)

    Johnson, C.A. [Norwich Radiology Academy, Norwich (United Kingdom)], E-mail: Catherine.johnson@nnuh.nhs.uk; Toms, A.P. [Norwich Radiology Academy, Norwich (United Kingdom)

    2009-10-15

    Aim: To determine whether there is evidence of a reduction in radiology research activity in the UK following the implementation of the European research ethics legislation, which came in to force in 2001 and has been widely criticised as an impediment to research. Materials and methods: A bibliometric analysis was performed by searching PubMed for all first-author publications from UK departments of 'radiology' or 'medical imaging' between 1995 and 2007. Results were subcategorized into those papers published in the highest cited general radiology journals and by publication type: original research, reviews, and case reports. Results: From 1995 to 2007 the total number of publications rose by 6.5% from 137 to 146 with the increase occurring in non-general radiology journals. Original articles fell from 18 in 1995 to 12 in 2003, but then rose to 24 by 2007 (33% rise). This dip was paralleled by a fall and then recovery in case report publications. The most dramatic change has been in the number of review articles, which has increased more than eightfold from seven in 1995 to 65 in 2007 to become the most common form of publication. Conclusion: The overall number of original scientific articles, published by first-author UK radiologists, has increased slightly over the last 12 years despite a temporary fall associated with the introduction of new research ethics legislation.

  7. Anticipation across disciplines

    CERN Document Server

    2016-01-01

    Never before was anticipation more relevant to the life and activity of humankind than it is today. “It is no overstatement to suggest that humanity’s future will be shaped by its capacity to anticipate….” (Research Agenda for the 21st Century, National Science Foundation). The sciences and the humanities can no longer risk explaining away the complexity and interactivity that lie at the foundation of life and living. The perspective of the world that anticipation opens justifies the descriptor “the post-Cartesian Revolution.” If anticipation is a valid research domain, what practical relevance can we await? Indeed, anticipation is more than just the latest catch-word in marketing the apps developed by the digital technology industry. Due to spectacular advances in the study of the living, anticipation can claim a legitimate place in current investigations and applications in the sciences and the humanities. Biology, genetics, medicine, as well as politics and cognitive, behavioral, and social sci...

  8. Method of Measuring the Economic Impact of a Radiological Dispersal Event within an Urban Environment

    Science.gov (United States)

    2010-03-01

    Terrorist Attack: Sept. 11, 2001 World Trade Center Attack ............................ 16  Accidental Manmade RDE:  Goiania , Brazil... Goiania , Brazil   In 1987, one of the most serious radiological accidents in history occurred in  Goiania , Brazil (International Atomic Energy Agency...using radiological material. In the case    18  of  Goiania , the RDE was a result of improper handling of abandoned medial  equipment, and was composed of

  9. Radiological impact of natural radioactivity in Egyptian phosphate rocks, phosphogypsum and phosphate fertilizers.

    Science.gov (United States)

    El-Bahi, S M; Sroor, A; Mohamed, Gehan Y; El-Gendy, N S

    2017-05-01

    In this study, the activity concentrations of the natural radionuclides in phosphate rocks and its products were measured using a high- purity germanium detector (HPGe). The obtained activity results show remarkable wide variation in the radioactive contents for the different phosphate samples. The average activity concentration of (235)U, (238)U, (226)Ra, (232)Th and (40)K was found as (45, 1031, 786, 85 and 765Bq/kg) for phosphate rocks, (28, 1234, 457, 123 and 819Bq/kg) for phosphate fertilizers, (47, 663, 550, 79 and 870Bq/kg) for phosphogypsum and (25, 543, 409, 54 and 897Bq/kg) for single super phosphate respectively. Based on the measured activities, the radiological parameters (activity concentration index, absorbed gamma dose rate in outdoor and indoor and the corresponding annual effective dose rates and total excess lifetime cancer risk) were estimated to assess the radiological hazards. The total excess lifetime cancer risk (ELCR) has been calculated and found to be high in all samples, which related to high radioactivity, representing radiological risk for the health of the population.

  10. The PRECOS framework: Measuring the impacts of the global changes on soils, water, agriculture on territories to better anticipate the future.

    Science.gov (United States)

    Trolard, Fabienne; Bourrié, Guilhem; Baillieux, Antoine; Buis, Samuel; Chanzy, André; Clastre, Philippe; Closet, Jean-François; Courault, Dominique; Dangeard, Marie-Lorraine; Di Virgilio, Nicola; Dussouilliez, Philippe; Fleury, Jules; Gasc, Jérémy; Géniaux, Ghislain; Jouan, Rachel; Keller, Catherine; Lecharpentier, Patrice; Lecroart, Jean; Napoleone, Claude; Mohammed, Gihan; Olioso, Albert; Reynders, Suzanne; Rossi, Federica; Tennant, Mike; de Vicente Lopez, Javier

    2016-10-01

    In a context of increased land and natural resources scarcity, the possibilities for local authorities and stakeholders of anticipating evolutions or testing the impact of envisaged developments through scenario simulation are new challenges. PRECOS's approach integrates data pertaining to the fields of water and soil resources, agronomy, urbanization, land use and infrastructure etc. It is complemented by a socio-economic and regulatory analysis of the territory illustrating its constraints and stakes. A modular architecture articulates modeling software and spatial and temporal representations tools. It produces indicators in three core domains: soil degradation, water and soil resources and agricultural production. As a territory representative of numerous situations of the Mediterranean Basin (urban pressures, overconsumption of spaces, degradation of the milieus), a demonstration in the Crau's area (Southeast of France) has allowed to validate a prototype of the approach and to test its feasibility in a real life situation. Results on the Crau area have shown that, since the beginning of the 16th century, irrigated grasslands are the cornerstones of the anthropic-system, illustrating how successfully men's multi-secular efforts have maintained a balance between environment and local development. But today the ecosystem services are jeopardized firstly by urban sprawl and secondly by climate change. Pre-diagnosis in regions of Emilia-Romagna (Italy) and Valencia (Spain) show that local end-users and policy-makers are interested by this approach. The modularity of indicator calculations and the availability of geo-databases indicate that PRECOS may be up scaled in other socio-economic contexts.

  11. Radioactive characterization of the main materials involved in the titanium dioxide production process and their environmental radiological impact.

    Science.gov (United States)

    Mantero, J; Gazquez, M J; Bolivar, J P; Garcia-Tenorio, R; Vaca, F

    2013-06-01

    A study about the distribution of several radionuclides from the uranium and the thorium series radionuclides along the production process of a typical NORM industry devoted to the production of titanium dioxide has been performed. With this end the activity concentrations in raw materials, final product, co-products, and wastes of the production process have been determined by both gamma-ray and alpha-particle spectrometry. The main raw material used in the studied process (ilmenite) presents activity concentrations of around 300 Bq kg(-1) for Th-series radionuclides and 100 Bq kg(-1) for the U-series ones. These radionuclides in the industrial process are distributed in the different steps of the production process according mostly to the chemical behaviour of each radioelement, following different routes. As an example, most of the radium remains associated with the un-dissolved material waste, with activity concentrations around 3 kBq kg(-1) of (228)Ra and around 1 kBq kg(-1) of (226)Ra, while the final commercial products (TiO2 pigments and co-products) contain negligible amounts of radioactivity. The obtained results have allowed assessing the possible public radiological impact associated with the use of the products and co-products obtained in this type of industry, as well as the environmental radiological impact associated with the solid residues and liquid generated discharges.

  12. The impact of radiological equipment on patient radiation exposure during endovascular aortic aneurysm repair

    Energy Technology Data Exchange (ETDEWEB)

    Fossaceca, Rita; Guzzardi, Giuseppe; Cerini, Paolo; Carriero, Alessandro [University Hospital ' ' Maggiore della Carita' ' , Radiology Department, Novara (Italy); Brambilla, Marco; Valzano, Serena [University Hospital ' ' Maggiore della Carita' ' , Medical Physics Department, Novara (Italy); Renghi, Alessandra; Brustia, Piero [University Hospital ' ' Maggiore della Carita' ' , Vascular Surgery Department, Novara (Italy)

    2012-11-15

    To compare the patient radiation dose during endovascular aortic aneurysm repair (EVAR) using different types of radiological systems: a mobile fluoroscopic C-arm, mobile angiographic and fixed angiographic equipment. Dose-area products (DAP) were obtained from a retrospective study of 147 consecutive patients, subjected to 153 EVAR procedures during a 3.5-year period. On the basis of these data, entrance surface dose (ESD) and effective dose (ED) were calculated. EVARs were performed using a fluoroscopic C-arm, mobile or fixed angiographic equipment in 79, 26 and 48 procedures, respectively. Fluoroscopy times were essentially equivalent for all the systems, ranging from 15 to 19 min. The clinical outcomes were not significantly different among the systems. Statistically significant differences among radiological equipment grouping were found for DAP (mobile C-arm: 32 {+-} 20 Gy cm{sup 2}; mobile angiography: 362 {+-} 164 Gy cm{sup 2}; fixed angiography: 464 {+-} 274 Gy cm{sup 2}; P < 10{sup -6}), for ESD (mobile C-arm: 0.18 {+-} 0.11 Gy; mobile angiography: 2.0 {+-} 0.8 Gy; fixed angiography: 2.5 {+-} 1.5 Gy; P < 10{sup -6}) and ED (mobile C-arm: 6.2 {+-} 4.5 mSv; mobile angiography: 64 {+-} 26 mSv; fixed angiography: 129 {+-} 76 mSv; P < 10{sup -6}). Radiation dose in EVAR is substantially less with a modern portable C-arm than with a fixed or mobile dedicated angiographic system. (orig.)

  13. Assessment of the radiological impacts of utilizing coal combustion fly ash as main constituent in the production of cement.

    Science.gov (United States)

    Turhan, Seref; Arıkan, Ismail H; Köse, Abdullah; Varinlioğlu, Ahmet

    2011-06-01

    The purpose of this study is to assess potential radiological impacts of utilizing pulverized fly ash (PFA) as a constituent in ordinary Portland cement. For this purpose, the activity concentrations of (226)Ra, (232)Th, and (40)K in samples of PFA and Portland cement containing 15%, 20%, and 25% by mass PFA were measured using gamma-ray spectrometry with HPGe detector. The mean activity concentrations of (226)Ra, (232)Th, and (40)K were found as 366.6, 113.7, and 460.2 Bq kg( - 1), 94.2, 25.9, and 215.3 Bq kg( - 1), 113.7, 34.3, and 238.3 Bq kg( - 1), and 124.2, 41.8, and 279.3 Bq kg( - 1) for the examined samples of PFA, Portland cement with 15%, 20%, and 25% by mass PFA, respectively. Radiological parameters such as radium equivalent activity, external exposure index (activity concentration index), internal dose index (alpha index), indoor absorbed gamma dose rate, and the corresponding the annually effective dose were assessed for Portland cement samples containing three percentages (15%, 20%, and 25%) by mass PFA. The results of assessment show that all Portland cement samples are within the safe limits recommended for building materials for dwellings.

  14. Radiological English

    Energy Technology Data Exchange (ETDEWEB)

    Ribes, R. [Hospital Reina Sofia, Cordoba (Spain). Servicio de Radiologia; Ros, P.R. [Harvard Medical School, Boston, MA (United States). Div. of Radiology

    2007-07-01

    The book is an introductory book to radiological English on the basis that there are a lot of radiologists, radiology residents, radiology nurses, radiology students, and radiographers worldwide whose English level is indeterminate because their reading skills are much higher than their fluency. It is intended to help those health care professionals who need English for their work but do not speak English on a day-to-day basis. (orig.)

  15. Recovery from chemical, biological, and radiological incidents. Critical infrastructure and economic impact considerations

    Energy Technology Data Exchange (ETDEWEB)

    Franco, David Oliver [Sandia National Lab. (SNL-CA), Livermore, CA (United States); Yang, Lynn I. [Sandia National Lab. (SNL-CA), Livermore, CA (United States); Hammer, Ann E. [Sandia National Lab. (SNL-CA), Livermore, CA (United States)

    2012-06-01

    To restore regional lifeline services and economic activity as quickly as possible after a chemical, biological or radiological incident, emergency planners and managers will need to prioritize critical infrastructure across many sectors for restoration. In parallel, state and local governments will need to identify and implement measures to promote reoccupation and economy recovery in the region. This document provides guidance on predisaster planning for two of the National Disaster Recovery Framework Recovery Support Functions: Infrastructure Systems and Economic Recovery. It identifies key considerations for infrastructure restoration, outlines a process for prioritizing critical infrastructure for restoration, and identifies critical considerations for promoting regional economic recovery following a widearea disaster. Its goal is to equip members of the emergency preparedness community to systematically prioritize critical infrastructure for restoration, and to develop effective economic recovery plans in preparation for a widearea CBR disaster.

  16. Radiology fundamentals

    CERN Document Server

    Singh, Harjit

    2011-01-01

    ""Radiology Fundamentals"" is a concise introduction to the dynamic field of radiology for medical students, non-radiology house staff, physician assistants, nurse practitioners, radiology assistants, and other allied health professionals. The goal of the book is to provide readers with general examples and brief discussions of basic radiographic principles and to serve as a curriculum guide, supplementing a radiology education and providing a solid foundation for further learning. Introductory chapters provide readers with the fundamental scientific concepts underlying the medical use of imag

  17. Anticipating Organizational Change

    DEFF Research Database (Denmark)

    Krogh, Simon

    of organizational members waiting for changes to take effect. The 3-year period leading up to the ‘go-live’ of Sundhedsplatformen has been a unique opportunity to study the anticipatory phase in connection with large scale IT project and has resulted in the development of a theoretical / conceptual framework......This study reports on the extended time period prior to the introduction of the largest ever Health IT implementation in Denmark – Sundhedsplatformen. The focus of the dissertation is on organizational implications of introducing new technology and more specifically the anticipation...

  18. Radiology illustrated. Pediatric radiology

    Energy Technology Data Exchange (ETDEWEB)

    Kim, In-One (ed.) [Seoul National Univ. College of Medicine (Korea, Republic of). Dept. of Radiology

    2014-11-01

    Depicts characteristic imaging findings of common and uncommon diseases in the pediatric age group. Will serve as an ideal diagnostic reference in daily practice. Offers an excellent teaching aid, with numerous high-quality illustrations. This case-based atlas presents images depicting the findings typically observed when imaging a variety of common and uncommon diseases in the pediatric age group. The cases are organized according to anatomic region, covering disorders of the brain, spinal cord, head and neck, chest, cardiovascular system, gastrointestinal system, genitourinary system, and musculoskeletal system. Cases are presented in a form resembling teaching files, and the images are accompanied by concise informative text. The goal is to provide a diagnostic reference suitable for use in daily routine by both practicing radiologists and radiology residents or fellows. The atlas will also serve as a teaching aide and a study resource, and will offer pediatricians and surgeons guidance on the clinical applications of pediatric imaging.

  19. Control of radiological impacts in deactivated uranium mine - the portuguese experience; Controlo dos impactes radiologicos em minas de uranio desactivadas - a experiencia portuguesa

    Energy Technology Data Exchange (ETDEWEB)

    Pereira, Alcides; Neves, Luis, E-mail: apereira@dct.uc.p, E-mail: luis.neves@dct.uc.p [Universidade de Coimbra (Portugal). Dept. de Ciencias da Terra. Instituto do Mar

    2011-10-26

    The exploration of radioactive ores occurred in Portugal during around 100 years, and on that period 4370 tons were produced of uranium concentrate, and an estimated total of 13 millions of tons of residues, of various type and variable dangerous grade. From the year 2000 that the government has been performed studies on environmental characterization at the mining areas and remediation project as well. The precise evaluation of the environmental impacts implies the the knowledge of prior work situation, nonexistent for the case of Portuguese mines. This work proposes a methodology for exceeding that limitation focused on selection of area sited at the same metallogenetic province, and considered representative of background. The radiological impacts are checked by the effective dose calculated for reference groups of the exposed population, at this region and in the principal mining area at Portugal (Urgeirica), at the end of exploration and after the finalization of some remediation works

  20. Environmental behavior of technetium in soil and vegetation: implications for radiological impact assessment

    Energy Technology Data Exchange (ETDEWEB)

    Hoffman, F.O.

    1982-04-01

    Significant radiological exposures have been estimated for hypothetical atmospheric releases of Tc-99 from gaseous diffusion facilities when vegetation-to-soil concentration ratios representative of laboratory experiments are substituted for generic default values assumed in current regulatory models. To test the relevancy of these laboratory ratios, field investigations were conducted to obtain measurements of the vegetation-to-soil concentration ratio for Tc-99 in samples collected near operating gaseous diffusion facilities and to observe the dynamic behavior of technetium in soil and vegetation following a single application of a sprayed solution of /sup 95m/TcO/sub 4//sup -/ Comparison of observed field concentration ratios and calculated steady-state concentration ratios with ratios obtained from previous laboratory experiments indicates that concentration ratios obtained from field data are one to two orders of magnitude less than those obtained from the laboratory. Furthermore, a substantial accumulation of technetium in soil and vegetation may not occur over long periods of time, since concentrations of technetium in both environmental media were observed to decrease with time subsequent to initial application of /sup 95m/TcO/sub 4//sup -/.

  1. Alkali-activated concrete with Serbian fly ash and its radiological impact.

    Science.gov (United States)

    Nuccetelli, Cristina; Trevisi, Rosabianca; Ignjatović, Ivan; Dragaš, Jelena

    2017-03-01

    The present paper reports the results of a study on different types of fly ash from Serbian coal burning power plants and their potential use as a binder in alkali-activated concrete (AAC) depending on their radiological and mechanical properties. Five AAC mixtures with different types of coal burning fly ash and one type of blast furnace slag were designed. Measurements of the activity concentrations of (40)K, (226)Ra and (232)Th were done both on concrete constituents (fly ash, blast furnace slag and aggregate) and on the five solid AAC samples. Experimental results were compared by using the activity concentration assessment tool for building materials - the activity concentration index I, as introduced by the EU Basic Safety Standards (CE, 2014). All five designed alkali-activated concretes comply with EU BSS screening requirements for indoor building materials. Finally, index I values were compared with the results of the application of a more accurate index - I(ρd), which accounts for thickness and density of building materials (Nuccetelli et al., 2015a). Considering the actual density and thickness of each concrete sample index - I(ρd) values are lower than index I values. As an appendix, a synthesis of main results concerning mechanical and chemical properties is provided.

  2. Can Cavitation Be Anticipated?

    Energy Technology Data Exchange (ETDEWEB)

    Allgood, G.O.; Dress, W.B.; Hylton, J.O.; Kercel, S.W.

    1999-04-25

    The major problem with cavitation in pumps and hydraulic systems is that there is no effective (conventional) method for detecting or predicting its inception. The traditional method of recognizing cavitation in a pump is to declare the event occurring when the total head drops by some arbitrary value (typically 3%) in response to a pressure reduction at the pump inlet. However, the device is already seriously cavitating when this happens. What is actually needed is a practical method to detect impending rather than incipient cavitation. Whereas the detection of incipient cavitation requires the detection of features just after cavitation starts, the anticipation of cavitation requires the detection and identification of precursor features just before it begins. Two recent advances that make this detection possible. The first is acoustic sensors with a bandwidth of 1 MHz and a dynamic range of 80 dB that preserve the fine details of the features when subjected to coarse vibrations. The second is the application of Bayesian parameter estimation which makes it possible to separate weak signals, such as those present in cavitation precursors, from strong signals, such as pump vibration. Bayesian parameter estimation derives a model based on cavitation hydrodynamics and produces a figure of merit of how well it fits the acquired data. Applying this model to an anticipatory engine should lead to a reliable method of anticipating cavitation before it occurs. This paper reports the findings of precursor features using high-performance sensors and Bayesian analysis of weak acoustic emissions in the 100-1000kHz band from an experimental flow loop.

  3. Imaging and radiology

    Science.gov (United States)

    Interventional radiology; Diagnostic radiology; X-ray imaging ... DIAGNOSTIC RADIOLOGY Diagnostic radiology helps health care professionals see structures inside your body. Doctors that specialize in the interpretation ...

  4. Implementation of a competency check-off in diagnostic fluoroscopy for radiology trainees: impact on reducing radiation for three common fluoroscopic exams in children

    Energy Technology Data Exchange (ETDEWEB)

    Shah, Sweta [University of Missouri-Kansas City SOM, Department of Radiology, Kansas City, MO (United States); Desouches, Stephane L. [University of Missouri-Kansas City SOM, Department of Radiology, Kansas City, MO (United States); St. Luke' s Hospital, Department of Radiology, Kansas City, MO (United States); Lowe, Lisa H.; Kasraie, Nima; Reading, Brenton [University of Missouri-Kansas City SOM, Department of Radiology, Kansas City, MO (United States); Children' s Mercy Hospitals and Clinics, Department of Radiology, Kansas City, MO (United States)

    2014-07-24

    Fluoroscopy is an important tool for diagnosis in the pediatric population, but it carries the risk of radiation exposure. Because radiology resident education and experience in the use of fluoroscopy equipment in children vary, we implemented an intervention to standardize fluoroscopy training. The purpose of this study is to determine the impact of implementing a fluoroscopy competency check-off for radiology resident trainees aimed at decreasing radiation exposure in three common pediatric fluoroscopic studies. A fluoroscopy competency check-off form was developed for radiology resident trainees performing pediatric procedures. Techniques used to limit radiation exposure for common pediatric radiologic studies were reviewed as part of the check-off process. Pediatric radiologists supervised each trainee until they demonstrated competence to independently perform three specified procedures. Radiation dose was recorded for the three procedures, upper GI (UGI), voiding cystourethrogram (VCUG) and oropharyngeal (OPM) exams, over 6 months preceding and 6 months following implementation of the competency check-off. The mean cumulative dose for each procedure was compared before and after implementation of competency check-off using a Kruskal-Wallis test. During the 12-month study period doses from 909 fluoroscopic procedures were recorded. In the 6 months preceding competency check-off implementation, procedures were performed by 24 radiology resident trainees including 171 UGI, 176 VCUG and 171 OPM exams. In the 6 months following competency check-off, 23 trainees performed 114 UGI, 145 VCUG and 132 OPM exams. After competency check-off implementation, a statistically significant reduction in average radiation dose was found for all three studies (P < 0.001). Median cumulative doses (mGy) were decreased by 33%, 36% and 13% for UGIs, VCUGs and OPMs, respectively. Implementation of a competency check-off for radiology resident trainees can reduce average radiation

  5. The impact of partial sleep deprivation on military naval officers' ability to anticipate moral and tactical problems in a simulated maritime combat operation.

    Science.gov (United States)

    Olsen, Olav Kjellevold; Pallesen, Ståle; Espevik, Roar

    2013-01-01

    The current research investigated how long-term partial sleep deprivation influenced naval officers' ability to generate anticipations of potentially critical problems at the entry of an operation. The study was organised as a balanced experimental design, testing the officers both in a rested and a sleepless condition during a complex naval simulator exercise. The results showed that lack of sleep severely impaired the officers' ability to foresee important problems within both the moral and tactical domain of the operation.These findings indicate that lack of sleep may obstruct planning and preparations in maritime operations in a way that may increase the risk of accidents and fatal errors, which again underscores the importance of sleep and rest as an integrated element of maritime operations and leadership.

  6. Radiological impact associated to the transport of radioactive material by road in Spain; Impacto radiologico asociado al transporte de material radiactivo por carretera en Espana

    Energy Technology Data Exchange (ETDEWEB)

    Calleja, J. A.; Gutierrez, F.

    2010-07-01

    Questions relating to the transport of radioactive materials are an issue of current interest because of the continuous increase in the mobility of these materials and the increasing commitment of these activities to the environment, the safety and protection of persons and the current legal framework. As a particularly contribution to the radiological impact study associated to the transport, a data-processing application for the treatment of data is propose, which allows progress to be made in this study and which may be of use in association with the legal documentation. Thus, by knowing the level of radiation at a distance of one metre from the transport vehicle and by selecting a route, it is possible to gain insight into the associated impacts, such as the affected populations, the dose received by the most exposed individual, the overall radiological impact and the contributions at population, transport route and national level. In preparing this work, consideration has been given to the relevant information provided by the different organisations involved in the issue (nuclear power plants, transport and inspection companies, etc.). The most important conclusion is that the, under normal operation, annual radiological impact from the transport by road of radioactive material in Spain is very low and does not imply any associated risks. (Author) 8 refs.

  7. Impact of Breast Density Legislation on Breast Cancer Risk Assessment and Supplemental Screening: A Survey of 110 Radiology Facilities.

    Science.gov (United States)

    Nayak, Lina; Miyake, Kanae K; Leung, Jessica W T; Price, Elissa R; Liu, Yueyi I; Joe, Bonnie N; Sickles, Edward A; Thomas, William R; Lipson, Jafi A; Daniel, Bruce L; Hargreaves, Jonathan; Brenner, R James; Bassett, Lawrence W; Ojeda-Fournier, Haydee; Lindfors, Karen K; Feig, Stephen A; Ikeda, Debra M

    2016-09-01

    Breast density notification laws, passed in 19 states as of October 2014, mandate that patients be informed of their breast density. The purpose of this study is to assess the impact of this legislation on radiology practices, including performance of breast cancer risk assessment and supplemental screening studies. A 20-question anonymous web-based survey was emailed to radiologists in the Society of Breast Imaging between August 2013 and March 2014. Statistical analysis was performed using Fisher's exact test. Around 121 radiologists from 110 facilities in 34 USA states and 1 Canadian site responded. About 50% (55/110) of facilities had breast density legislation, 36% of facilities (39/109) performed breast cancer risk assessment (one facility did not respond). Risk assessment was performed as a new task in response to density legislation in 40% (6/15) of facilities in states with notification laws. However, there was no significant difference in performing risk assessment between facilities in states with a law and those without (p facilities in states with laws implemented handheld whole breast ultrasound (WBUS), automated WBUS, and tomosynthesis, respectively. The ratio of facilities offering handheld WBUS was significantly higher in states with a law than in states without (p facilities are offering supplemental screening with WBUS and tomosynthesis, and many are performing formal risk assessment for determining patient management.

  8. Analysis of the impact of digital tomosynthesis on the radiological investigation of patients with suspected pulmonary lesions on chest radiography

    Energy Technology Data Exchange (ETDEWEB)

    Quaia, Emilio; Baratella, Elisa; Cernic, Stefano; Lorusso, Arianna; Casagrande, Federica; Cioffi, Vincenzo; Cova, Maria Assunta [University of Trieste (Italy), Department of Radiology, Cattinara Hospital, Trieste (Italy)

    2012-09-15

    To assess the impact of digital tomosynthesis (DTS) on the radiological investigation of patients with suspected pulmonary lesions on chest radiography (CXR). Three hundred thirty-nine patients (200 male; age, 71.19 {+-} 11.9 years) with suspected pulmonary lesion(s) on CXR underwent DTS. Two readers prospectively analysed CXR and DTS images, and recorded their diagnostic confidence: 1 or 2 = definite or probable benign lesion or pseudolesion deserving no further diagnostic workup; 3 = indeterminate; 4 or 5 = probable or definite pulmonary lesion deserving further diagnostic workup by computed tomography (CT). Imaging follow-up by CT (n = 76 patients), CXR (n = 256) or histology (n = 7) was the reference standard. DTS resolved doubtful CXR findings in 256/339 (76 %) patients, while 83/339 (24 %) patients proceeded to CT. The mean interpretation time for DTS (mean {+-} SD, 220 {+-} 40 s) was higher (P < 0.05; Wilcoxon test) than for CXR (110 {+-} 30 s), but lower than CT (600 {+-} 150 s). Mean effective dose was 0.06 mSv (range 0.03-0.1 mSv) for CXR, 0.107 mSv (range 0.094-0.12 mSv) for DTS, and 3 mSv (range 2-4 mSv) for CT. DTS avoided the need for CT in about three-quarters of patients with a slight increase in the interpretation time and effective dose compared to CXR. (orig.)

  9. Radiological impact assessment of radioactive minerals of amang and ilmenite on future landuse using RESRAD computer code

    Energy Technology Data Exchange (ETDEWEB)

    Azlina, M.J.; Ismail, B. E-mail: ismail@pkrisc.cc.ukm.my; Yasir, M. Samudi; Sakuma, Syed Hakimi; Khairuddin, M.K

    2003-03-01

    A radiological impact assessment (RIA) onto environment from radioactive minerals of amang and ilmenite was carried out in an amang processing plant at Dengkil, Selangor, Malaysia. The RIA was based on maximum total doses received by residents and industrial workers with the assumption that the area will be turned into a residential or industrial area once the plant is closed. RIA was based on a land area of 20,000 m{sup 2} with 0.2 m thick contamination zone. Result was obtained by comparing with the limits prescribed by Atomic Energy Licensing Board of Malaysia (AELB), which is 1 mSv y{sup -1} for public. The parameter input was based on the study location specific value, existing value in RESRAD and suitable estimation values based on sensitivity analysis. Based on two scenarios, the predicted maximum total doses received by residents and industrial workers in extreme condition are 10.41, 1.94, 35.03 and 35.0 mSv y{sup -1} each exceeding the dose limit for public. Nevertheless, with the use of soil cover with thickness between 0.1 and 1 m and ventilation rates between 1 and 10 h{sup -1}, these maximum total doses can be lowered to levels not exceeding the set dose limit and the area can be used safely for residential as well as industrial purpose.

  10. Radiological impact of phosphogypsum surface application in a no-till system in Southern Brazil

    OpenAIRE

    Nivea Maria Piccolomini Dias; Eduardo Fávero Caires; Luiz Fernando Pires; Márcio Arruda Bacchi; Elisabete Aparecida de Nadai Fernandes

    2010-01-01

    The objective of this work was to determine the impact of phosphogypsum application on 226Ra and 228Ra activities in the soil and on their accumulation in soybean grains. A field experiment was carried out in Paraná state, Brazil, on a loamy Typic Hapludox, under no-till system, with increasing phosphogypsum rates: 4, 8, and 12 Mg ha-1. GammA ray spectrometry was carried out using HPGe detectors with 45 and 10% relative efficiencies, for soybean grains and soil, respectively. No increment of ...

  11. L'anticipation comme actualisation

    DEFF Research Database (Denmark)

    Mondeme, Chloé

    2017-01-01

    It is commonly stated that anticipation is a phenomenon that is prior to a given action or situation, both time-wise and logically speaking. In this article, we focus in detail on how anticipation reconfigures the very action being anticipated. By ‘in detail’, we mean through the meticulous...... observation and analysis of ordinary interactions. The corpus is constituted of learning interactions, between dog educator and dogs in formation, in which anticipating an action, notably by assessing it before it happens, contributes in a large part to (re)configure it. This point leads us to develop...

  12. Radiological impact assessment of arc welding supplies rutile; Evaluacion del impacto radiologico de la soldadura por arco con consumibles de rutilo

    Energy Technology Data Exchange (ETDEWEB)

    Rozas Guinea, S.; Herranz Soler, M.; Perez Marin, C.; Idoeta Hermandorena, R.; Alegria gutierrez, N.; Nunez-Lagos Rogla, R.; Legarda Ibanez, F.

    2013-07-01

    Consumables for welding containing rutile, the coating of the electrode or the filling of tubular thread, are the most widely used and also the most radioactive since the rutile is a mineral containing traces of natural radionuclides, and is therefore considered Normal Occurring Radioactive Material (NORM). As these electrodes and wire are consumed, small particles, aerosols and gases are emitted to the atmosphere of work, and may be inhaled by the welder. Therefore, and also according to the current regulatory framework and work carried out previously by the author on the radiological impact of the process of manufacture and storage of coated rutile electrodes, the objectives are: 1Calcular the internal dose for inhalation during two types of welding, one with electrodes coated and the other with thread. 2 calculate the external dose due to the deposition of particles in the work environment, slag and the immersion of the soldering iron in the cloud of smoke. 3 to assess the radiological impact. (Author)

  13. A study of the anticipated impacts on Canada from the development of liquefied natural gas terminals on Passamaquoddy Bay : final report

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2007-10-15

    This study provided a qualitative assessment of the potential impacts and risks associated with the development of liquefied natural gas (LNG) terminals on the United States side of Pasamaquoddy Bay. The report included an assessment of environmental impacts, marine and navigational safety impacts, and socio-economic impacts as a result of the terminal. The report also investigated the potential impacts on coastal ecosystems and wetlands, as well as potential impacts on land-based flora and fauna. Impacts from marine traffic through Canadian waters were considered. Three worst-case risk scenarios were used as the basis for determining potential environmental and socio-economic impacts. Potential effects and policy considerations associated with the construction of LNG terminals in the region were discussed. The study considered 3 project areas: the Quoddy Bay LNG project; the Downeast LNG project; and the Calais LNG project. The consequences of vapour clouds and pool fires were considered, as well as the overall hazards associated with a large LNG spill. Evaluation scenarios were considered for leaks and minor releases. Transportation and navigational issues included ship specifications, traffic movements and route analyses. Issues related to whales and hatcheries were considered. Emergency preparedness and response plans were included. An assessment of cumulative risks in the region was also provided. 182 refs., 65 tabs., 23 figs.

  14. Radiological impact of phosphogypsum surface application in a no-till system in Southern Brazil

    Directory of Open Access Journals (Sweden)

    Nivea Maria Piccolomini Dias

    2010-12-01

    Full Text Available The objective of this work was to determine the impact of phosphogypsum application on 226Ra and 228Ra activities in the soil and on their accumulation in soybean grains. A field experiment was carried out in Paraná state, Brazil, on a loamy Typic Hapludox, under no-till system, with increasing phosphogypsum rates: 4, 8, and 12 Mg ha-1. GammA ray spectrometry was carried out using HPGe detectors with 45 and 10% relative efficiencies, for soybean grains and soil, respectively. No increment of 226Ra and 228Ra activities was observed due to the increase in phosphogypsum rates in the soil, and a small reduction was noticed in the grains. Average values found for 226Ra and 228Ra activities were 37 and 57 Bq kg-1 in the soil and 1.44 and 3.19 Bq kg-1 in soybean grains. The application of phosphogypsum for no-till soybean production is a safe practice regarding the risks of radiation damage to human health

  15. Radiological impact of phosphogypsum discharged into the Venice lagoon: 222Rn

    Directory of Open Access Journals (Sweden)

    Fasson A.

    2012-04-01

    Full Text Available For about 20 years, between the 60 ’s and the 80 ’s of the last century, in the Passo a Campalto area (Lagoon of Venice - Italy about 400,000 m3 of phosphogypsum (PG were deposited at the border of the lagoon and next to urban areas without any environmental control. These materials are a by-product formed during the wet processing of phosphate rocks by sulphuric acid and have a significant environmental impact due to their abundance and their chemical-physical and radiochemical characteristics. The PG contains both chemical elements, which are considered dangerous for the ecosystems and natural radionuclides whose concentrations are much higher if compared to those typical for the Earth’s crust. These discarded materials caused for many years the dispersion of radionuclides in the environment due to the tidal erosion, the re-suspension of radioactive inhalable dusts, the uncontrolled radon exhalation and the bioaccumulation of some radionuclides in the lagoon environment. After a decision of the appointed authorities, the Venice Water Authority (Ministry of Infrastructure and Transport, planned a permanent safety control of the site resulting in the complete isolation of the entire volume of contaminated materials from the environmental system. The entire project was specific for the particular features of the site and it required the improvement of analytical, sampling and measurement techniques in order to verify the effectiveness of the safety action. The radon assessment, in particular the check of the effectiveness of the inhibition of radon exhalation, is part of a more complex study, covering many other aspects of the management of a permanent disposal; they will be the object of further notes. The ultimate results of this study prove the efficacy of the intervention: radon concentrations in air and exhalation values from the restored area, measured during surveys, have been proved to be well in agreement with those of non

  16. Radiological impact of phosphogypsum discharged into the Venice lagoon: 222Rn

    Science.gov (United States)

    Cantaluppi, C.; Ceccotto, F.; Cianchi, A.; Fasson, A.; Degetto, S.

    2012-04-01

    For about 20 years, between the 60 's and the 80 's of the last century, in the Passo a Campalto area (Lagoon of Venice - Italy) about 400,000 m3 of phosphogypsum (PG) were deposited at the border of the lagoon and next to urban areas without any environmental control. These materials are a by-product formed during the wet processing of phosphate rocks by sulphuric acid and have a significant environmental impact due to their abundance and their chemical-physical and radiochemical characteristics. The PG contains both chemical elements, which are considered dangerous for the ecosystems and natural radionuclides whose concentrations are much higher if compared to those typical for the Earth's crust. These discarded materials caused for many years the dispersion of radionuclides in the environment due to the tidal erosion, the re-suspension of radioactive inhalable dusts, the uncontrolled radon exhalation and the bioaccumulation of some radionuclides in the lagoon environment. After a decision of the appointed authorities, the Venice Water Authority (Ministry of Infrastructure and Transport), planned a permanent safety control of the site resulting in the complete isolation of the entire volume of contaminated materials from the environmental system. The entire project was specific for the particular features of the site and it required the improvement of analytical, sampling and measurement techniques in order to verify the effectiveness of the safety action. The radon assessment, in particular the check of the effectiveness of the inhibition of radon exhalation, is part of a more complex study, covering many other aspects of the management of a permanent disposal; they will be the object of further notes. The ultimate results of this study prove the efficacy of the intervention: radon concentrations in air and exhalation values from the restored area, measured during surveys, have been proved to be well in agreement with those of non contaminated soils.

  17. A parametric model for analyzing anticipation in genetically predisposed families

    DEFF Research Database (Denmark)

    Larsen, Klaus; Petersen, Janne; Bernstein, Inge;

    2009-01-01

    Anticipation, i.e. a decreasing age-at-onset in subsequent generations has been observed in a number of genetically triggered diseases. The impact of anticipation is generally studied in affected parent-child pairs. These analyses are restricted to pairs in which both individuals have been affect...

  18. Radiological Impact Associated to Technologically Enhanced Naturally Occurring Radioactive Materials (TENORM) from Coal-Fired Power Plants Emissions - 13436

    Energy Technology Data Exchange (ETDEWEB)

    Dinis, Maria de Lurdes; Fiuza, Antonio; Soeiro de Carvalho, Jose; Gois, Joaquim [Geo-Environment and Resources Research Centre (CIGAR), Porto University, Faculty of Engineering - FEUP, Rua Dr. Roberto Frias, 4200-465 Porto (Portugal); Meira Castro, Ana Cristina [School of Engineering Polytechnic of Porto - ISEP, Rua Dr. Antonio Bernardino de Almeida, 431, 4200-072, Porto (Portugal)

    2013-07-01

    Certain materials used and produced in a wide range of non-nuclear industries contain enhanced activity concentrations of natural radionuclides. In particular, electricity production from coal is one of the major sources of increased human exposure to naturally occurring radioactive materials. A methodology was developed to assess the radiological impact due to natural radiation background. The developed research was applied to a specific case study, the Sines coal-fired power plant, located in the southwest coastline of Portugal. Gamma radiation measurements were carried out with two different instruments: a sodium iodide scintillation detector counter (SPP2 NF, Saphymo) and a gamma ray spectrometer with energy discrimination (Falcon 5000, Canberra). Two circular survey areas were defined within 20 km of the power plant. Forty relevant measurements points were established within the sampling area: 15 urban and 25 suburban locations. Additionally, ten more measurements points were defined, mostly at the 20-km area. The registered gamma radiation varies from 20 to 98.33 counts per seconds (c.p.s.) corresponding to an external gamma exposure rate variable between 87.70 and 431.19 nGy/h. The highest values were measured at locations near the power plant and those located in an area within the 6 and 20 km from the stacks. In situ gamma radiation measurements with energy discrimination identified natural emitting nuclides as well as their decay products (Pb-212, Pb-2142, Ra-226, Th-232, Ac-228, Th-234, Pa-234, U- 235, etc.). According to the results, an influence from the stacks emissions has been identified both qualitatively and quantitatively. The developed methodology accomplished the lack of data in what concerns to radiation rate in the vicinity of Sines coal-fired power plant and consequently the resulting exposure to the nearby population. (authors)

  19. Citation trend and suggestions for improvement of impact factor of Journal of Korean Therapeutic Radiology and Oncology

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Seong Hwan; Hwang, Seong Su; Ahn, Myeong Im [College of Medicine, The Catholic University of Korea, Seoul (Korea, Republic of); Jeong, So Na [The Catholic University of Korea, Medical Library Seoul (Korea, Republic of)

    2006-12-15

    To analyze the recent citation trend and to find a way to improve impact factor (IF) of the Journal of Korean Therapeutic Radiology and Oncology (JKSTRO) by analysis of Korean Medical Citation index (KoMCI) citation data of JKSTRO and comparison with that of mean citation data of all journals enlisted on KoMCI (KoMCI journals) during 2000-2005. All citation data of entire journals enlisted on KoMCI and JKSTRO from 2000 to 2005 were obtained from KoMCI. The trend of total and annual number of published articles and reference citations, total citations and self-citations per paper, IF and impact factor excluding self-citations (ZIF) were described and compared on both KoMCI journals an JKSTRO. Annual number of published articles was decreased for 6 years on both KoMCI journals and JKSTRO (32% and 38% reduction rate). The number of Korean journal references per article is 1.6 papers of JKSTRO comparing to 2.0 papers on KoMCI journals. The percentage of Korean references/total references increased from 5.0% in 2000 to 7.7% in 2005 on JKSTRO and from 8.5% in 2000 to 10.1% on KoMCI journals. The number of total citations received/paper on JKSTRO (average 1.333) is smaller than that of KoMCI journals (average 1.694), there was an increased rate of 67% in 2005 comparing to 2000. The percentage of self-citations/total citations (average 72%) on JKSTRO is slightly higher than that of KoMCI journals (average 61%)/ IF of JKSTRO was gradually improved and 0.144, 0.125, 0.088, 0.107, 0.187 and 0.203 in 2000-2005 respectively. However, ZIF of JKSTRO is steadily decreased from 0.038 in 2000 to 0.013 in 2005 except 0.044 in 2004. IF of JKSTRO was slightly improved but had some innate problem of smaller number of citations received . To make JKSTRO as a highly cited journal, the awareness of academic status of JKSTRO and active participation of every member of JKSTRO including encouraging self-citations of papers published recent 2 years and submission of English written papers, and

  20. The Perceived long-term impact of the radiological curriculum innovation in the medical doctors training at Ghent University

    Energy Technology Data Exchange (ETDEWEB)

    Kourdioukova, Elena V., E-mail: elena.kourdioukova@ugent.be [Department of Radiology, Ghent University Hospital (UZG), MR/-1K12, De Pintelaan 185, B-9000 Ghent (Belgium); Valcke, Martin [Department of Educational Studies, Ghent University, H. Dunantlaan 2, B-9000 Ghent (Belgium); Verstraete, Koenraad L. [Department of Radiology, Ghent University Hospital (UZG), MR/-1K12, De Pintelaan 185, B-9000 Ghent (Belgium)

    2011-06-15

    Objectives: How do students experience and perceive the innovative undergraduate radiology curriculum at Ghent University, and what explains differences in student perception? Methods: A survey was presented to the 2008 cohort of students enrolled in the undergraduate medical curriculum at Ghent University. The survey focused on their experiences and perceptions in relation to the innovative undergraduate radiology teaching. Results and conclusion: The present research results point at a favorable perception of the innovative radiology curriculum components. The study points - both during pre-clinical and clinical years - at the appreciation for curriculum components that combine traditional curriculum components (ex-cathedra lessons with syllabus) with distance learning components such as E-learning and E-testing. In clinical years - as expected - students switch to the application of knowledge and skills and therefore heavily appreciate practice linked curriculum components.

  1. Evidence for anticipation in schizophrenia.

    OpenAIRE

    Bassett, A. S.; Honer, W.G.

    1994-01-01

    Anticipation, or increasing severity of a disorder across successive generations, is a genetic phenomenon with an identified molecular mechanism: expansion of unstable trinucleotide repeat sequences. This study examined anticipation in familial schizophrenia. Three generations of siblines from the affected side of families selected for unilineal, autosomal dominant-like inheritance of schizophrenia were studied (n = 186). Across generations more subjects were hospitalized with psychotic illne...

  2. Interventional radiology

    Energy Technology Data Exchange (ETDEWEB)

    Steinbrich, W. (ed.) (Basel Univ. (Switzerland). Inst. fuer Medizinische Radiologie); Gross-Fengels, W. (ed.) (Allgemeines Krankenhaus Harburg, Hamburg (Germany). Abt. fuer Klinische Radiologie)

    1993-01-01

    In interventional radiology adjunctive medical therapy can increase patient's comfort, and should further reduce the risks of the procedures. In order to fulfill the responsibility of the interventionist to the patients and to increase the success rate of the interventions, a profound knowledge of certain drugs is indispensable. This includes, for example, sedatives, analgesics, cardiovascular drugs and agents to prevent infections, thromboembolic complications or restenoses. Moreover, a good monitoring system during complex procedures will increase the safety of radiological interventions. These topics and several more are presented in this book. (orig.). 32 figs.

  3. Palatable meal anticipation in mice.

    Directory of Open Access Journals (Sweden)

    Cynthia T Hsu

    Full Text Available The ability to sense time and anticipate events is a critical skill in nature. Most efforts to understand the neural and molecular mechanisms of anticipatory behavior in rodents rely on daily restricted food access, which induces a robust increase of locomotor activity in anticipation of daily meal time. Interestingly, rats also show increased activity in anticipation of a daily palatable meal even when they have an ample food supply, suggesting a role for brain reward systems in anticipatory behavior, and providing an alternate model by which to study the neurobiology of anticipation in species, such as mice, that are less well adapted to "stuff and starve" feeding schedules. To extend this model to mice, and exploit molecular genetic resources available for that species, we tested the ability of wild-type mice to anticipate a daily palatable meal. We observed that mice with free access to regular chow and limited access to highly palatable snacks of chocolate or "Fruit Crunchies" avidly consumed the snack but did not show anticipatory locomotor activity as measured by running wheels or video-based behavioral analysis. However, male mice receiving a snack of high fat chow did show increased food bin entry prior to access time and a modest increase in activity in the two hours preceding the scheduled meal. Interestingly, female mice did not show anticipation of a daily high fat meal but did show increased activity at scheduled mealtime when that meal was withdrawn. These results indicate that anticipation of a scheduled food reward in mice is behavior, diet, and gender specific.

  4. Interactive Radiological Anatomy eLearning Solution for First Year Medical Students: Development, Integration, and Impact on Learning

    Science.gov (United States)

    Webb, Alexandra Louise; Choi, Sunhea

    2014-01-01

    A technology enhanced learning and teaching (TELT) solution, radiological anatomy (RA) eLearning, composed of a range of identification-based and guided learning activities related to normal and pathological X-ray images, was devised for the Year 1 nervous and locomotor course at the Faculty of Medicine, University of Southampton. Its…

  5. Assessment of radiological impact in mineral industrial plants caused by deposition of wastes with U{sup 238} and/or Th{sup 232} associated

    Energy Technology Data Exchange (ETDEWEB)

    Ladeira, Paula C.; Alves, Rex Nazare, E-mail: rexnazare@ime.eb.b [Instituto Militar de Engenharia (IME), Rio de Janeiro, RJ (Brazil); Ruperti Junior, Nerbe J., E-mail: nruperti@cnen.gov.b [Comissao Nacional de Energia Nuclear (DIREJ/CNEN-RJ), Rio de Janeiro, RJ (Brazil). Div. de Rejeitos Radioativos

    2011-07-01

    The industrial-mining facilities constantly produce, in Brazil and in abroad, wastes from its production, many times containing uranium and/or thorium associated. Due to the large quantities generated, these wastes are usually deposited at the site of the facility, close to the place where they were produced. Since the chains of radioactive U{sup 238} and Th{sup 232} with alpha-emitting radionuclides have long half-life, waste deposits associated with these elements may cause radiological impact on the man and on the environment, even in the long term. Mathematical models are often used to represent the biosphere and the transport of radionuclides near to the surface. Thus, it was decided, through the software {sup M}athematica{sup ,} to present a methodology based on the solution of Bateman equations for the calculation of radiological impact on individuals from the public exposed to contamination. The radiological impact appraisal was carried out considering a scenario of intrusion into landfills containing U{sup 238} and / or Th{sup 232} in post-operational phase of an industrial-mining installation. The critical group examined was represented by farmers who used water from an artesian well for daily consumption and which feed themselves on vegetables locally grown in clay soil. As a result, there was the exposure in pathways evaluated, a minor contribution of dose for ingestion of contaminated water. The conclusion of this work, show us that calculated doses were within the accepted international limits for the intrusion scenario. Parameters associated with mathematical models defining the choice of project to build a landfill for the purpose of deposition, whereas rates of doses can be estimated in each of the scenarios proposed. (author)

  6. Creation and implementation of department-wide structured reports: an analysis of the impact on error rate in radiology reports.

    Science.gov (United States)

    Hawkins, C Matthew; Hall, Seth; Zhang, Bin; Towbin, Alexander J

    2014-10-01

    The purpose of this study was to evaluate and compare textual error rates and subtypes in radiology reports before and after implementation of department-wide structured reports. Randomly selected radiology reports that were generated following the implementation of department-wide structured reports were evaluated for textual errors by two radiologists. For each report, the text was compared to the corresponding audio file. Errors in each report were tabulated and classified. Error rates were compared to results from a prior study performed prior to implementation of structured reports. Calculated error rates included the average number of errors per report, average number of nongrammatical errors per report, the percentage of reports with an error, and the percentage of reports with a nongrammatical error. Identical versions of voice-recognition software were used for both studies. A total of 644 radiology reports were randomly evaluated as part of this study. There was a statistically significant reduction in the percentage of reports with nongrammatical errors (33 to 26%; p = 0.024). The likelihood of at least one missense omission error (omission errors that changed the meaning of a phrase or sentence) occurring in a report was significantly reduced from 3.5 to 1.2% (p = 0.0175). A statistically significant reduction in the likelihood of at least one comission error (retained statements from a standardized report that contradict the dictated findings or impression) occurring in a report was also observed (3.9 to 0.8%; p = 0.0007). Carefully constructed structured reports can help to reduce certain error types in radiology reports.

  7. Evaluating the Impact of a Canadian National Anatomy and Radiology Contouring Boot Camp for Radiation Oncology Residents

    Energy Technology Data Exchange (ETDEWEB)

    Jaswal, Jasbir [Department of Radiation Oncology, London Health Sciences Centre, London, Ontario (Canada); D' Souza, Leah; Johnson, Marjorie [Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, Western University, London, Ontario (Canada); Tay, KengYeow [Department of Diagnostic Radiology, London Health Sciences, London, Ontario (Canada); Fung, Kevin; Nichols, Anthony [Department of Otolaryngology, Head & Neck Surgery, Victoria Hospital, London, Ontario (Canada); Landis, Mark [Department of Diagnostic Radiology, London Health Sciences, London, Ontario (Canada); Leung, Eric [Department of Radiation Oncology, London Health Sciences Centre, London, Ontario (Canada); Kassam, Zahra [Department of Diagnostic Radiology, St. Joseph' s Health Care London, London, Ontario (Canada); Willmore, Katherine [Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, Western University, London, Ontario (Canada); D' Souza, David; Sexton, Tracy [Department of Radiation Oncology, London Health Sciences Centre, London, Ontario (Canada); Palma, David A., E-mail: david.palma@lhsc.on.ca [Department of Radiation Oncology, London Health Sciences Centre, London, Ontario (Canada)

    2015-03-15

    Background: Radiation therapy treatment planning has advanced over the past 2 decades, with increased emphasis on 3-dimensional imaging for target and organ-at-risk (OAR) delineation. Recent studies suggest a need for improved resident instruction in this area. We developed and evaluated an intensive national educational course (“boot camp”) designed to provide dedicated instruction in site-specific anatomy, radiology, and contouring using a multidisciplinary (MDT) approach. Methods: The anatomy and radiology contouring (ARC) boot camp was modeled after prior single-institution pilot studies and a needs-assessment survey. The boot camp incorporated joint lectures from radiation oncologists, anatomists, radiologists, and surgeons, with hands-on contouring instruction and small group interactive seminars using cadaveric prosections and correlative axial radiographs. Outcomes were evaluated using pretesting and posttesting, including anatomy/radiology multiple-choice questions (MCQ), timed contouring sessions (evaluated relative to a gold standard using Dice similarity metrics), and qualitative questions on satisfaction and perceived effectiveness. Analyses of pretest versus posttest scores were performed using nonparametric paired testing. Results: Twenty-nine radiation oncology residents from 10 Canadian universities participated. As part of their current training, 29%, 75%, and 21% receive anatomy, radiology, and contouring instruction, respectively. On posttest scores, the MCQ knowledge scores improved significantly (pretest mean 60% vs posttest mean 80%, P<.001). Across all contoured structures, there was a 0.20 median improvement in students' average Dice score (P<.001). For individual structures, significant Dice improvements occurred in 10 structures. Residents self-reported an improved ability to contour OARs and interpret radiographs in all anatomic sites, 92% of students found the MDT format effective for their learning, and 93% found the boot camp

  8. Anticipating Climate Change Impacts on Army Installations

    Science.gov (United States)

    2011-10-01

    Plantation” rather than “Turkey oak- longleaf pine .” In this sense, human encouraged categories may better reflect the environmental conditions than...cavities have been found in longleaf , loblolly (Pinus taeda), shortleaf (Pinus echinata), slash (Pinus ellioti), pond pine (Pinus rigida), and even...growth pine forests and es- tablishing an effective prescribed burning program. Minimum tree ages should be 100–125 years for longleaf pine , 80–150

  9. Risk management in radiology departments

    Science.gov (United States)

    Craciun, Horea; Mankad, Kshitij; Lynch, Jeremy

    2015-01-01

    Medical imaging and interventional radiology sustained prompt changes in the last few years, mainly as a result of technology breakthroughs, rise in workload, deficit in workforce and globalization. Risk is considered to be the chance or possibility of incurring loss or of a negative event happening that may cause injury to patients or medical practitioners. There are various causes of risks leading to harm and injury in radiology departments, and it is one of the objectives of this paper to scrutinize some of the causes. This will drive to consideration of some of the approaches that are used in managing risks in radiology. This paper aims at investigating risk management in radiology, and this will be achieved through a thorough assessment of the risk control measures that are used in the radiology department. It has been observed that the major focus of risk management in such medical setting is to reduce and eliminate harm and injury to patients through integration of various medical precautions. The field of Radiology is rapidly evolving due to technology advances and the globalization of healthcare. This ongoing development will have a great impact on the level of quality of care and service delivery. Thus, risk management in radiology is essential in protecting the patients, radiologists, and the medical organization in terms of capital and widening of the reputation of the medical organization with the patients. PMID:26120383

  10. Risk management in radiology departments

    Institute of Scientific and Technical Information of China (English)

    Horea; Craciun; Kshitij; Mankad; Jeremy; Lynch

    2015-01-01

    Medical imaging and interventional radiology sustained prompt changes in the last few years, mainly as aresult of technology breakthroughs, rise in workload, deficit in workforce and globalization. Risk is considered to be the chance or possibility of incurring loss or of a negative event happening that may cause injury to patients or medical practitioners. There are various causes of risks leading to harm and injury in radiology departments, and it is one of the objectives of this paper to scrutinize some of the causes. This will drive to consideration of some of the approaches that are used in managing risks in radiology. This paper aims at investigating risk management in radiology, and this will be achieved through a thorough assessment of the risk control measures that are used in the radiology department. It has been observed that the major focus of risk management in such medical setting is to reduce and eliminate harm and injury to patients through integration of various medical precautions. The field of Radiology is rapidly evolving due to technology advances and the globalization of healthcare. This ongoing development will have a great impact on the level of quality of care and service delivery. Thus, risk management in radiology is essential in protecting the patients, radiologists, and the medical organization in terms of capital and widening of the reputation of the medical organization with the patients.

  11. Radiology education: a glimpse into the future

    Energy Technology Data Exchange (ETDEWEB)

    Scarsbrook, A.F. [Department of Radiology, John Radcliffe Hospital, Headley Way, Headington, Oxford (United Kingdom)]. E-mail: andyscarsbrook1@aol.com; Graham, R.N.J. [Department of Radiology, John Radcliffe Hospital, Headley Way, Headington, Oxford (United Kingdom); Perriss, R.W. [Department of Radiology, John Radcliffe Hospital, Headley Way, Headington, Oxford (United Kingdom)

    2006-08-15

    The digital revolution in radiology continues to advance rapidly. There are a number of interesting developments within radiology informatics which may have a significant impact on education and training of radiologists in the near future. These include extended functionality of handheld computers, web-based skill and knowledge assessment, standardization of radiological procedural training using simulated or virtual patients, worldwide videoconferencing via high-quality health networks such as Internet2 and global collaboration of radiological educational resources via comprehensive, multi-national databases such as the medical imaging resource centre initiative of the Radiological Society of North America. This article will explore the role of e-learning in radiology, highlight a number of useful web-based applications in this area, and explain how the current and future technological advances might best be incorporated into radiological training.

  12. Liturgy as space for anticipation

    Directory of Open Access Journals (Sweden)

    Johan Cilliers

    2011-03-01

    Full Text Available This article proposes that the notion of liturgical space, understood in conjunction with the original Greek concept of space, is not only a quantitative, physical locality, but also a primary qualitative possibility for existence, a meaningful womb, a neighbourhood for imagination and a space for anticipation. Three consequences of this proposal are discussed, namely liturgy as waiting on the elusive presence (presence of absence of God, celebration as (metaphorical dance of hope, and the need for liturgical refiguring.

  13. WSPEEDI (worldwide version of SPEEDI): A computer code system for the prediction of radiological impacts on Japanese due to a nuclear accident in foreign countries

    Energy Technology Data Exchange (ETDEWEB)

    Chino, Masamichi; Yamazawa, Hiromi; Nagai, Haruyasu; Moriuchi, Shigeru [Japan Atomic Energy Research Inst., Tokai, Ibaraki (Japan). Tokai Research Establishment; Ishikawa, Hirohiko

    1995-09-01

    A computer code system has been developed for near real-time dose assessment during radiological emergencies. The system WSPEEDI, the worldwide version of SPEEDI (System for Prediction of Environmental Emergency Dose Information) aims at predicting the radiological impact on Japanese due to a nuclear accident in foreign countries. WSPEEDI consists of a mass-consistent wind model WSYNOP for large-scale wind fields and a particle random walk model GEARN for atmospheric dispersion and dry and wet deposition of radioactivity. The models are integrated into a computer code system together with a system control software, worldwide geographic database, meteorological data processor and graphic software. The performance of the models has been evaluated using the Chernobyl case with reliable source terms, well-established meteorological data and a comprehensive monitoring database. Furthermore, the response of the system has been examined by near real-time simulations of the European Tracer Experiment (ETEX), carried out over about 2,000 km area in Europe. (author).

  14. Impacted Mandibular Third Molars: Review of Literature and a Proposal of a Combined Clinical and Radiological Classification

    OpenAIRE

    2015-01-01

    Tooth impaction is a pathological situation where a tooth fails to attain its normal functional position. Impacted third molars are commonly encountered in routine dental practice. The impaction rate is higher for third molars when compared with other teeth. The mandibular third molar impaction is said to be due to the inadequate space between the distal of the second mandibular molar and the anterior border of the ascending ramus of the mandible. Impacted teeth may remain asymptomatic or may...

  15. Comparison of toxicological and radiological aspects of K basins sludge

    Energy Technology Data Exchange (ETDEWEB)

    RITTMANN, P.D.

    1999-10-27

    The composition of various K Basins sludge is evaluated for its toxicological and radiological impacts downwind from accidents. It is shown that the radiological risk evaluation guidelines are always more limiting than the toxicological risk evaluation guidelines.

  16. The radiological consequences of degraded core accidents for the Sizewell PWR The impact of adopting revised frequencies of occurrence

    CERN Document Server

    Kelly, G N

    1983-01-01

    The radiological consequences of degraded core accidents postulated for the Sizewell PWR were assessed in an earlier study and the results published in NRPB-R137. Further analyses have since been made by the Central Electricity Generating Board (CEGB) of degraded core accidents which have led to a revision of their predicted frequencies of occurrence. The implications of these revised frequencies, in terms of the risk to the public from degraded core accidents, are evaluated in this report. Increases, by factors typically within the range of about 1.5 to 7, are predicted in the consequences, compared with those estimated in the earlier study. However, the predicted risk from degraded core accidents, despite these increases, remains exceedingly small.

  17. Assessment of the radiological impact of gamma and radon dose rates at former U mining sites in Tajikistan.

    Science.gov (United States)

    Lespukh, E; Stegnar, P; Yunusov, M; Tilloboev, H; Zyazev, G; Kayukov, P; Hosseini, A; Strømman, G; Salbu, B

    2013-12-01

    An assessment of the radiological situation due to exposure to gamma radiation, radon ((222)Rn) and thoron ((220)Rn) was carried out at former uranium (U) mining and processing sites in Taboshar and at Digmai in Tajikistan. Gamma dose rate measurements were made using various field instruments. (222)Rn/(220)Rn measurements were carried out with field instruments for instantaneous measurements and then discriminative (222)Rn/(220)Rn solid state nuclear track detectors (SSNTD) were used for longer representative measurements. The detectors were exposed for an extended period of time in different outdoor and indoor public and residential environments at the selected U legacy sites. The results showed that gamma, (222)Rn and (220)Rn doses were in general low, which consequently implies a low to relatively low radiological risk. The radiation doses deriving from external radiation (gamma dose rate), indoor (222)Rn and (220)Rn with their short-lived progenies did not exceed national or international standards. At none of the sites investigated did the average individual annual effective doses exceed 10 mSv, the recommended threshold value for the general public. A radiation hazard could be associated with exceptional situations, such as elevated exposures to ionizing radiation at the Digmai tailings site and/or in industrial facilities, where gamma and (222)Rn/(220)Rn dose rates could reach values of several 10 mSv/a. Current doses of ionizing radiation do not represent a hazard to the health of the resident public, with the exception of some specific situations. These issues should be adequately addressed to further reduce needless exposure of the resident public to ionizing radiation.

  18. Interactive radiological anatomy eLearning solution for first year medical students: Development, integration, and impact on learning.

    Science.gov (United States)

    Webb, Alexandra Louise; Choi, Sunhea

    2014-01-01

    A technology enhanced learning and teaching (TELT) solution, radiological anatomy (RA) eLearning, composed of a range of identification-based and guided learning activities related to normal and pathological X-ray images, was devised for the Year 1 nervous and locomotor course at the Faculty of Medicine, University of Southampton. Its effectiveness was evaluated using a questionnaire, pre- and post-tests, focus groups, summative assessment, and tracking data. Since introduced in 2009, a total of 781 students have used RA eLearning, and among them 167 Year 1 students in 2011, of whom 116 participated in the evaluation study. Students enjoyed learning (77%) with RA eLearning, found it was easy to use (81%) and actively engaged them in their learning (75%), all of which were associated to the usability, learning design of the TELT solution and its integration in the curriculum; 80% of students reported RA eLearning helped their revision of anatomy and 69% stated that it facilitated their application of anatomy in a clinical context, both of which were associated with the benefits offered by the learning and activities design. At the end of course summative assessment, student knowledge of RA eLearning relevant topics (mean 80%; SD ±16) was significantly better as compared to topics not relevant to RA eLearning (mean 63%; SD ±15) (mean difference 18%; 95% CI 15% to 20%; P < 0.001). A well designed and integrated TELT solution can be an efficient method for facilitating the application, integration, and contextualization of anatomy and radiology to create a blended learning environment.

  19. Docritfab: A program to assess the radiological impact in accidental emissions of a nuclear fuel factory in real time; Docritfab: Un programa para evaluar en tiempo real el impacto radiologico en emisiones accidentales de una fabrica de combustible nuclear

    Energy Technology Data Exchange (ETDEWEB)

    Sanchez, J. G.; Ortiz, D.; Lopez, J.

    2014-07-01

    Docrit is a program developed for the manufacture of fuels of oxides of uranium Juzbado allowing an estimate in real time of the radiological impact in the case of accidental emissions from gaseous effluents (emissions of aerosols of UO{sub 2} and criticality accidents).

  20. Web tool to estimate the impact radiological associated transport of radioactive waste to ATC; Herramienta WEB para calcular el impacto radiologico asociado al transporte de residuos radiactivos al ATC

    Energy Technology Data Exchange (ETDEWEB)

    Calleja Rubio, J. A.; Gutierrez, F.; Colon, C.

    2012-07-01

    The transport of radioactive materials is a topic of renewed interest in our country due to the increasing mobility to be expected, especially after the entry into operation of the centralized buffer planned for the coming years. It is possible to estimate radiological impacts associated.

  1. Radiological scenario modeling using the Hotspot code and potential financial impact of treatment of radiation induced cancer to the public; Modelagem de cenario radiologico utilizando o codigo Hotspot e potenciais impactos financeiros para tratamento de cancer radioinduzido ao publico

    Energy Technology Data Exchange (ETDEWEB)

    Silva, Gabriel Fidalgo Queiroz da; Andrade, Edson Ramos de; Rebello, Wilson Freitas; Araujo, Olga Maria Oliveira de, E-mail: profgabriel.fisica@gmail.com, E-mail: fisica.dna@gmail.com, E-mail: rebello@ime.eb.br, E-mail: olgafisica2013@hotmail.com [Instituto Militar de Engenharia (IME), Rio de Janeiro, RJ (Brazil). Secao de Engenharia Nuclear

    2015-07-01

    The work aims to develop a methodology that is able to estimate the financial impact in a radiological emergency events, considering the radiation induced cancer, particularly leukemia. Considering a RDD - Radiological Dispersive Device, consisting of explosives and cesium-137 as radioactive material, a scenario building on the Rio de Janeiro was modeled. The convergence of a risk modeling platform (HotSpot 3.0), the analysis of excess relative risks for humans (BEIR V-Biological Effects of Ionizing Radiation V), considering scenarios composed of contaminated areas, are secondary goals.

  2. Current radiology. Volume 5

    Energy Technology Data Exchange (ETDEWEB)

    Wilson, G.H.; Hanafee, W.N.

    1984-01-01

    This book contains 10 selections. They are: Nuclear Magnetic Resonance Imaging, Interventional Vascular Radiology, Genitourinary Radiology, Skeletal Radiology, Digital Subtraction Angiography, Neuroradiology, Computed Tomographic Evaluation of Degenerative Diseases of the Lumbar Spine, The Lung, Otolaringology and Opthalmology, and Pediatric Radiology: Cranial, Facial, Cervical, Vertebral, and Appendicular.

  3. Radiological Control Manual

    Energy Technology Data Exchange (ETDEWEB)

    1993-04-01

    This manual has been prepared by Lawrence Berkeley Laboratory to provide guidance for site-specific additions, supplements, and clarifications to the DOE Radiological Control Manual. The guidance provided in this manual is based on the requirements given in Title 10 Code of Federal Regulations Part 835, Radiation Protection for Occupational Workers, DOE Order 5480.11, Radiation Protection for Occupational Workers, and the DOE Radiological Control Manual. The topics covered are (1) excellence in radiological control, (2) radiological standards, (3) conduct of radiological work, (4) radioactive materials, (5) radiological health support operations, (6) training and qualification, and (7) radiological records.

  4. ERICA程序在核电厂址陆生生物辐射影响评价中的应用%Study of ERICA Code Application in Radiological Impact Assessment of Terrestrial Biota Near Nuclear Power Plant

    Institute of Scientific and Technical Information of China (English)

    白晓平; 杜红燕

    2012-01-01

    ERICA是欧共体(Ec)推荐的用于评估水生生物和陆生生物辐射影响的程序。本文应用ERICA程序对我国某核电厂址9种陆生生物辐射影响进行评估中,分析了ERICA程序在估算陆生生物辐射剂量率中存在的问题以及今后的研究方向。%ERICA is a computer code recommended by European Commission(EC) for assessing the mdiological impact of aquatic and terrestrial biota. ERICA code is briefly introduced and was used to evaluate radiological impact of nine species of terrestrial biota near a Chinese nuclear power plant. The existing problems and further research directions of ERICA code applied to radiological impact of terrestrial biota are pointed out finally.

  5. Educational treasures in Radiology: The Radiology Olympics - striving for gold in Radiology education

    OpenAIRE

    Talanow, Roland

    2010-01-01

    This article focuses on Radiology Olympics (www.RadiologyOlympics.com) - a collaboration with the international Radiology community for Radiology education, Radiolopolis (www.Radiolopolis.com). The Radiology Olympics honour the movers and shakers in Radiology education and offer an easy to use platform for educating medical professionals based on Radiology cases.

  6. Need to monitoring the particulate components and gaseous components of the I-131 in air, on Radiological monitoring networks. impact of the accident of Fukushima Dai-chi in Spain; Necesidad de monitorizar las componentes particulada y gaseosa del {sup 1}31I en aire, en redes de vigilancia radiologica. Impacto en Espana del accidente de Fukushima DAI-ICHI

    Energy Technology Data Exchange (ETDEWEB)

    Baeza Espasa, A.; Caballero Andrada, M.; Corbacho Merino, J. A.; Ontalba Salamanca, M. A.; Rodriguez Perulero, A.; Valencia Corrales, D.; Vasco Vargas, J.

    2013-07-01

    Following a nuclear accident with significant overseas evacuations, it should be accurately determined concentration radio iodines into the atmosphere, given its important contribution to the radiological impact produced. Automatic networks radiation monitoring aim to provide as quickly as possible, reliable information on these radiological changes, to take necessary countermeasures. (Author)

  7. Role for Genetic Anticipation in Lynch Syndrome

    DEFF Research Database (Denmark)

    Nilbert, Mef; Timshel, Susanne; Bernstein, Inge

    2009-01-01

    PURPOSE: Anticipation (ie, an earlier age at onset in successive generations) is linked to repeat expansion in neurodegenerative syndromes, whereas its role in hereditary cancer is unclear. We assessed anticipation in Lynch syndrome (hereditary nonpolyposis colorectal cancer [HNPCC]), in which DN...... to initiate surveillance programs at young age. It should also stimulate research into the genetic mechanisms that determine age at onset and whether the genetic instability that characterizes Lynch syndrome can be linked to anticipation....

  8. Virtual radiology rounds: adding value in the digital era

    Energy Technology Data Exchange (ETDEWEB)

    Fefferman, Nancy R.; Strubel, Naomi A.; Prithiani, Chandan; Chakravarti, Sujata; Caprio, Martha; Recht, Michael P. [New York University School of Medicine, Department of Radiology, New York, NY (United States)

    2016-11-15

    To preserve radiology rounds in the changing health care environment, we have introduced virtual radiology rounds, an initiative enabling clinicians to remotely review imaging studies with the radiologist. We describe our initial experience with virtual radiology rounds and referring provider impressions. Virtual radiology rounds, a web-based conference, use remote sharing of radiology workstations. Participants discuss imaging studies by speakerphone. Virtual radiology rounds were piloted with the Neonatal Intensive Care Unit (NICU) and the Congenital Cardiovascular Care Unit (CCVCU). Providers completed a survey assessing the perceived impact and overall value of virtual radiology rounds on patient care using a 10-point scale. Pediatric radiologists participating in virtual radiology rounds completed a survey assessing technical, educational and clinical aspects of this methodology. Sixteen providers responded to the survey; 9 NICU and 7 CCVCU staff (physicians, nurse practitioners and fellows). Virtual radiology rounds occurred 4-5 sessions/week with an average of 6.4 studies. Clinicians rated confidence in their own image interpretation with a 7.4 average rating for NICU and 7.5 average rating for CCVCU. Clinicians unanimously rated virtual radiology rounds as adding value. NICU staff preferred virtual radiology rounds to traditional rounds and CCVCU staff supported their new participation in virtual radiology rounds. Four of the five pediatric radiologists participating in virtual radiology rounds responded to the survey reporting virtual radiology rounds to be easy to facilitate (average rating: 9.3), to moderately impact interpretation of imaging studies (average rating: 6), and to provide substantial educational value for radiologists (average rating: 8.3). All pediatric radiologists felt strongly that virtual radiology rounds enable increased integration of the radiologist into the clinical care team (average rating: 8.8). Virtual radiology rounds are a

  9. Radiological Impact Study of the Coal-Fired Power Plant of Lada; Estudio del Impacto Radiologico de la Central Termica de Carbon de Lada

    Energy Technology Data Exchange (ETDEWEB)

    Robles, B.; Baeza, A.; Mora, J. C.; Corbacho, J. A.; Trueba, C.; Guillen, J.; Rodriguez, J.; Miralles, Y.

    2014-02-01

    Coal, fuel used in thermal power plants for electricity production, contains variable concentrations of naturally occurring radionuclides from natural disintegration series of 238{sup U}, 235{sup U}, 232{sup T}h and also the 40K, which are enhanced in the wastes and coproducts due to the industrial process. For this reason, natural radionuclides which are part of the noncombustible fraction of coal, except those volatiles which incorporate directly to the flue gases, concentrates and are partitioned between fly ashes and bottom ashes. This enhancement could cause, to the workers of the installation and to members of the public around the plant, an increase in the exposure which should be assessed under the radiation protection point of view. Present report collect the results obtained from a screening assessment of the radiological impact derived from the normal operation of the Lada coal-fired power plant. The project where this assessment was performed is part of a bigger project which is jointly developed by the Unit of Radiation Protection of the Public and the Environment (UPRPYMA) of CIEMAT and the Environmental Radioactivity Laboratory of the Extremadura University (LARUEX) in agreement with the Spanish Association of the Electrical Industry (ENUSA). (Author)

  10. Radiological Impact Study of the Coal-Fired Power Plant of Meirama; Estudio del Impacto Radiologico de la Central Termica de Carbon de Meirama

    Energy Technology Data Exchange (ETDEWEB)

    Robles, B.; Baeza, A.; Mora, J. C.; Corbacho, J. A.; Trueba, C.; Guillen, J.; Rodriguez, J.; Miralles, Y.

    2014-04-01

    Coal, fuel used in thermal power plants for electricity production, contains variable concentrations of naturally occurring radionuclides from natural disintegration series of {sup 2}38U, {sup 2}35U, {sup 2}32Th and also the 40K, which are enhanced in the wastes and coproducts due to the industrial process. For this reason, natural radionuclides which are part of the noncombustible fraction of coal, except those volatiles which incorporate directly to the flue gases, concentrates and are partitioned between fly ashes and bottom ashes. This enhancement could cause, to the workers of the installation and to members of the public around the plant, an increase in the exposure which should be assessed under the radiation protection point of view. Present report collect the results obtained from a screening assessment of the radiological impact derived from the normal operation of the Meirama coal-fired power plant. The project where this assessment was performed is part of a bigger project which is jointly developed by the Unit of Radiation Protection of the Public and the Environment (UPRPYMA) of CIEMAT and the Environmental Radioactivity Laboratory of the Extremadura University (LARUEX) in agreement with the Spanish Association of the Electrical Industry (ENUSA). (Author)

  11. Radiological Impact Study of the Coal-Fired Power Plant of Velilla; Estudio del Impacto Radiologico de la Central Termica de Carbon de Velilla

    Energy Technology Data Exchange (ETDEWEB)

    Robles, B.; Mora, J. c.; Trueba, C.; Rodriguez, J.; Baeza, A.; Corbacho, J. a.; Guillen, J.; Miralles, Y.

    2013-10-01

    Coal, fuel used in thermal power plants for electricity production, contains variable concentrations of naturally occurring radionuclides from natural disintegration series of 238U, 235U, 232Th and also the 40K, which are enhanced in the wastes and coproducts due to the industrial process. For this reason, natural radionuclides which are part of the non-combustible fraction of coal, except those volatiles which incorporate directly to the flue gases, concentrates and are partitioned between fly ashes and bottom ashes. This enhancement could cause, to the workers of the installation and to members of the public around the plant, an increase in the exposure which should be assessed under the radiation protection point of view. Present report collect the results obtained from a screening assessment of the radiological impact derived from the normal operation of the Velilla coal-fired power plant. The project where this assessment was performed is part of a bigger project which is jointly developed by the Unit of Radiation Protection of the Public and the Environment (UPRPYMA) of CIEMAT and the Environmental Radioactivity Laboratory of the Extremadura University (LARUEX) in agreement with the Spanish Association of the Electrical Industry (ENUSA). (Author)

  12. Radiological Impact Study of the Coal-Fired Power Plant of Abono; Estudio del Impacto Radiologico de la Central Termica de Carbon de Abono

    Energy Technology Data Exchange (ETDEWEB)

    Robles, B.; Baeza, A.; Mora, J. C.; Corbacho, J. A.; Trueba, C.; Guillen, J.; Rodriguez, J.; Miralles, Y.

    2014-04-01

    Coal, fuel used in thermal power plants for electricity production, contains variable concentrations of naturally occurring radionuclides from natural disintegration series of {sup 2}38U, {sup 2}35U, {sup 2}32Th and also the {sup 4}0K, which are enhanced in the wastes and coproducts due to the industrial process. For this reason, natural radionuclides which are part of the noncombustible fraction of coal, except those volatiles which incorporate directly to the flue gases, concentrates and are partitioned between fly ashes and bottom ashes. This enhancement could cause, to the workers of the installation and to members of the public around the plant, an increase in the exposure which should be assessed under the radiation protection point of view. Present report collect the results obtained from a screening assessment of the radiological impact derived from the normal operation of the Abono coal-fired power plant. The project where this assessment was performed is part of a bigger project which is jointly developed by the Unit of Radiation Protection of the Public and the Environment (UPRPYMA) of CIEMAT and the Environmental Radioactivity Laboratory of the Extremadura University (LARUEX) in agreement with the Spanish Association of the Electrical Industry (ENUSA). (Author)

  13. Radiological Impact Study of the Coal-Fired Power Plant of La Robla; Estudio del Impacto Radiologico de la Central Termica de Carbon de La Robla

    Energy Technology Data Exchange (ETDEWEB)

    Robles, B.; Mora, J. C.; Trueba, C.; Rodriguez, J.; Baeza, A.; Corbacho, J. A.; Guillen, J.; Miralles, Y.

    2013-07-01

    Coal, fuel used in thermal power plants for electricity production, contains variable concentrations of naturally occurring radionuclides from natural disintegration series of 238{sup U}, 235{sup U}, 232{sup T}h and also the 40{sup K}, which are enhanced in the wastes and coproducts due to the industrial process. For this reason, natural radionuclides which are part of the non-combustible fraction of coal, except those volatiles which incorporate directly to the flue gases, concentrates and are partitioned between fly ashes and bottom ashes. This enhancement could cause, to the workers of the installation and to members of the public around the plant, an increase in the exposure which should be assessed under the radiation protection point of view. Present report collect the results obtained from a screening assessment of the radiological impact derived from the normal operation of the La Robla coal-fired power plant. The project where this assessment was performed is part of a bigger project which is jointly developed by the Unit of Radiation Protection of the Public and the Environment (UPRPYMA) of CIEMAT and the Environmental Radioactivity Laboratory of the Extremadura University (LARUEX) in agreement with the Spanish Association of the Electrical Industry (ENUSA). (Author)

  14. Radiological Impact Study of the Coal-Fired Power Plant of La Robla; Estudio del Impacto Radiologico de la Central Termica de Carbon de La Robla

    Energy Technology Data Exchange (ETDEWEB)

    Robles, B.; Baeza, A.; Mora, J. C.; Corbacho, J. A.; Trueba, C.; Guillen, J.; Rodriguez, J.; Miralles, Y.

    2014-04-01

    Coal, fuel used in thermal power plants for electricity production, contains variable concentrations of naturally occurring radionuclides from natural disintegration series of {sup 2}38U, {sup 2}35U, {sup 2}32Th and also the 40K, which are enhanced in the wastes and coproducts due to the industrial process. For this reason, natural radionuclides which are part of the noncombustible fraction of coal, except those volatiles which incorporate directly to the flue gases, concentrates and are partitioned between fly ashes and bottom ashes. This enhancement could cause, to the workers of the installation and to members of the public around the plant, an increase in the exposure which should be assessed under the radiation protection point of view. Present report collect the results obtained from a screening assessment of the radiological impact derived from the normal operation of the La Robla coal-fired power plant. The project where this assessment was performed is part of a bigger project which is jointly developed by the Unit of Radiation Protection of the Public and the Environment (UPRPYMA) of CIEMAT and the Environmental Radioactivity Laboratory of the Extremadura University (LARUEX) in agreement with the Spanish Association of the Electrical Industry (ENUSA). (Author)

  15. Radiological Impact Study of the Coal-Fired Power Plant of Anllares; Estudio del Impacto Radiologico de la Central Termica de Carbon de Anllares

    Energy Technology Data Exchange (ETDEWEB)

    Robles, B.; Baeza, A.; Mora, J. C.; Corbacho, J. A.; Trueba, C.; Guillen, J.; Rodriguez, J.; Miralles, Y.

    2014-04-01

    Coal, fuel used in thermal power plants for electricity production, contains variable concentrations of naturally occurring radionuclides from natural disintegration series of {sup 2}38U, {sup 2}35U, {sup 2}32Th and also the 40K, which are enhanced in the wastes and coproducts due to the industrial process. For this reason, natural radionuclides which are part of the noncombustible fraction of coal, except those volatiles which incorporate directly to the flue gases, concentrates and are partitioned between fly ashes and bottom ashes. This enhancement could cause, to the workers of the installation and to members of the public around the plant, an increase in the exposure which should be assessed under the radiation protection point of view. Present report collect the results obtained from a screening assessment of the radiological impact derived from the normal operation of the Anllares coal-fired power plant. The project where this assessment was performed is part of a bigger project which is jointly developed by the Unit of Radiation Protection of the Public and the Environment (UPRPYMA) of CIEMAT and the Environmental Radioactivity Laboratory of the Extremadura University (LARUEX) in agreement with the Spanish Association of the Electrical Industry (ENUSA). (Author)

  16. Radiology applications of financial accounting.

    Science.gov (United States)

    Leibenhaut, Mark H

    2005-03-01

    A basic knowledge of financial accounting can help radiologists analyze business opportunities and examine the potential impacts of new technology or predict the adverse consequences of new competitors entering their service area. The income statement, balance sheet, and cash flow statement are the three basic financial statements that document the current financial position of the radiology practice and allow managers to monitor the ongoing financial operations of the enterprise. Pro forma, or hypothetical, financial statements can be generated to predict the financial impact of specific business decisions or investments on the profitability of the practice. Sensitivity analysis, or what-if scenarios, can be performed to determine the potential impact of changing key revenue, investment, operating cost or financial assumptions. By viewing radiology as both a profession and a business, radiologists can optimize their use of scarce economic resources and maximize the return on their financial investments.

  17. Society of Interventional Radiology

    Science.gov (United States)

    ... Search Patient information Membership Directory (SIR login) Interventional Radiology General News Multiple procedure payment reduction (MPPR) rate ... contact Eleanore Moye . Learn more . American Board of Radiology Announces Maintenance of Certification Part 3: ABR diplomates ...

  18. Phosphategypsum wastes in Venice lagoon. Radiological impact; Le discariche di fosfogessi nella laguna di Venezia. Valutazioni preliminari dell'impatto radiologico

    Energy Technology Data Exchange (ETDEWEB)

    Belli, M; Blasi, M; Guogang, J.; Rosamilia, S.; Sansone, U. [Agenzia Nazionale per la Protezione dell' Ambiente, Rome (Italy); Biancotto, R.; Bidoli, P.; Sepulcri, D. [Agenzia Regionale di Prevenzione e Protezione del Veneto, Venice (Italy). Dipt. provinciale di Venezia; Cavolo, F. [Smilax, Mira, VE (Italy)

    2000-07-01

    The phosphoric minerals utilized in phosphoric acid production, presents high concentrations of radioactive materials: U238, Th 232, K 40. The phosphogypsum is the waste material obtained in the phosphoric acid production in wet process. This type of production method is employed for many years in Venice lagoon (Porto Marghera chemical plants). In this paper are reported evaluations of radiological impact on aquatic environment of lagoon. [Italian] Con il termine di fosfogessi si intende comunemente il materiale di risulta che si ottiene nella produzione di acido fosforico attraverso la via umida (attacco acido). Questa tipologia di produzione che ha operato per diversi decenni a Porto Marghera, e' finalizzata allo scopo di ottenere acido fosforico principalmente per l'industria dei fertilizzanti e quindi come prodotto intermedio per la chimica e per le preparazioni alimentari. Il fosforo, elemento principale della reazione, era ricavato da rocce fosfatiche di origine sedimentaria marina provenienti per lo piu' dall'Africa settentrionale. Il sistema produttivo utilizzato negli impianti di Porto Marghera era basato su una reazione principale, che partendo dal minerale attraverso un attacco acido, produceva acido fosforico: Ca{sub 3}(PO{sub 4}){sub 2} (Minerale Fosforico) + 3H{sub 2}SO{sub 4} (Acido Solforico) + 3H{sub 2}O (Acqua) {yields} 2H{sub 3}PO{sub 4} (Acido fosforico) + 3CaSO{sub 4}H{sub 2}O (Solfato di calcio (gesso)). In particolare il minerale era preventivamente macinato e vagliato, quindi si procedeva alla sua miscelazione con l'acido fosforico ed alla successiva reazione del composto ottenuto.

  19. Role for Genetic Anticipation in Lynch Syndrome

    DEFF Research Database (Denmark)

    Nilbert, Mef; Timshel, Susanne; Bernstein, Inge;

    2009-01-01

    parent-child pairs in which age at the first cancer diagnosis was assessed. A paired t-test and a specifically developed bivariate model were used to assess a possible role of anticipation. RESULTS: Both methods revealed anticipation with children developing cancer mean 9.8 years (P ... parents using the paired t-test and 5.5 years (P ... to initiate surveillance programs at young age. It should also stimulate research into the genetic mechanisms that determine age at onset and whether the genetic instability that characterizes Lynch syndrome can be linked to anticipation....

  20. Application of fisheries management techniques to assessing impacts: task I report. [Assessment of chemical, radiological, and thermal impacts of nuclear power plants on fish populations

    Energy Technology Data Exchange (ETDEWEB)

    McKenzie, D.H.; Baker, K.S.; Fickeisen, D.H.; Metzger, R.M.; Skalski, J.R.

    1979-03-01

    Task I efforts examined the available fisheries management techniques and assessed their potential application in a confirmatory monitoring program. The objective of such monitoring programs is to confirm that the prediction of an insignificant impact (usually made in the FES) was correct. Fisheries resource managers have developed several tools for assessing the fish population response to stress (exploitation) and they were thought potentially useful for detecting nuclear power plant impacts. Techniques in three categories were examined; catch removal, population dynamics, and nondestructive censuses, and the report contains their description, examples of application, advantages, and disadvantages. The techniques applied at nuclear power plant sites were examined in detail to provide information on implementation and variability of specific approaches. The most suitable techniques to incorporate into a monitoring program confirming no impact appear to be those based on Catch Per Unity Effort (CPUE) and hydroacoustic data. In some specific cases, age and growth studies and indirect census techniques may be beneficial. Recommendations for task II efforts to incorporate these techniques into monitoring program designs are presented. These include development of guidelines for; (1) designing and implementing a data collection program; (2) interpreting these data and assessing the occurrence of impact, and (3) establishment of the monitoring program's ability to detect changes in the affected populations.

  1. Anticipation Behavior Upstream of a Bottleneck

    NARCIS (Netherlands)

    Duives, D.C.; Daamen, W.; Hoogendoorn, S.P.

    2014-01-01

    Whether pedestrian movements do or do not follow similar patterns as vehicular traffic while experiencing congestion is not entirely understood. Using data gathered during bottleneck experiments under laboratory conditions, the phenomenon of anticipation before entering congestion is studied. This p

  2. Essentials of skeletal radiology

    Energy Technology Data Exchange (ETDEWEB)

    Yochum, T.R.; Rowe, L.J.

    1987-01-01

    This book discusses the following topics of skeletal radiology: Positioning of patients for diagnostic radiology and normal anatomy; congenital malformations of skeleton; measurements in radiology; spondylolisthesis; metabolic and endocrine diseases of bone and their diagnostic aspects; image processing of vertebrae, skeleton, bone fractures evaluations and epidemiological and social aspects of some bone diseases. Various modalities as CT scanning, NMR imaging, ultrasonography and biomedical radiography are briefly discussed in relation to bone pathology.

  3. Protecting against natural hazards - Information seeking behaviour in anticipation of severe weather events

    NARCIS (Netherlands)

    Jeuring, Jelmer

    2011-01-01

    Protection against natural hazards - Information seeking behaviour in anticipation of severe weather events Severe weather events can have considerable impact on society, including tourism organisations and tourists. Providing accurate and timely information about possible risks due to environmental

  4. Radiological Emergency Response Data

    Data.gov (United States)

    U.S. Environmental Protection Agency — Quality Data Asset includes all current and historical emergency radiological response event and incident of national significance data and surveillance, monitoring,...

  5. User questionnaire to evaluate the radiological workspace

    NARCIS (Netherlands)

    van Ooijen, Peter M. A.; Koesoema, Allya P.; Oudkerk, Matthijs

    2006-01-01

    Over the past few years, an increase in digitalization of radiology departments can be seen, which has a large impact on the work of the radiologists. This impact is not only demonstrated by the increased use of digital images but also by changing demands on the whole reading environment. In this st

  6. Nuclear and energies nr 57. Japan, another glance. The environmental and radiological impact. The international impact. The illusion of renewable energies in Japan; Nucleaire et energies no. 57. Le Japon, un autre regard. L'impact environnemental et radiologique. L'impact international. L'illusion des energies renouvelables au Japon

    Energy Technology Data Exchange (ETDEWEB)

    Lenail, B.

    2011-07-15

    The contributions of this publication first address the Japanese local context (organization, mentality, cultural background, thinking and action modes), and secondly the environmental and radiological impact of the Fukushima accident, notably in comparison with Chernobyl (contamination is much more localized, sometimes higher; a larger concerned population but quicker and more efficient protection measures; more severe consequences due to population displacement). The third article discusses the international impact of the accident: known or foreseen consequences on nuclear programs, discussion on safety strengthening and on governance, evolution of public opinion, possible consequences on climate negotiations. The last article proposes an overview of the current situation of Japan which must mobilize all the available energy resources to face the difficulties in electricity supply

  7. Physics of Radiology

    CERN Document Server

    Johns, Harold Elford

    1983-01-01

    Authority, comprehensivity and a consummate manner of presentation have been hallmarks of The Physics of Radiology since it first saw publication some three decades past. This Fourth Edition adheres to that tradition but again updates the context. It thoroughly integrates ideas recently advanced and practices lately effected. Students and professionals alike will continue to view it, in essence, as the bible of radiological physics.

  8. Qualitative evaluation of environmental radiological impact in a phosphate associated uranium conventional mine: Santa Quiteria Project, CE, Brazil; Avaliacao qualitativa do impacto radiologico ambiental em uma mineracao convencional de fosfato com uranio associado: o Projeto Santa Quiteria

    Energy Technology Data Exchange (ETDEWEB)

    Reis, Rocio G. dos; Santo, Aline Sa E., E-mail: rocio@ird.gov.br, E-mail: alinesah@ird.gov.br [Instituto de Radioprotecao e Dosimetria (IRD/CNEN-RJ), Rio de Janeiro, RJ (Brazil)

    2013-07-01

    The aim of this study is to identify and evaluate qualitatively the main potential sources of mineral and installation terms of Santa Quiteria, CE, Brazil, evaluating their possible impacts on the environment. The key terms sources in the production of phosphoric acid are usually: the dig of the mines, tailings dams and phospho plaster stack. Thus, this work intends to inform the academic community about this issue, as well as the population in general and also, acting proactively in order to warn about the possible environmental impacts, so that actions to compensate, minimize or avoid these radiological impacts on the environment, can be included in the planning of the industrial mineral project of Santa Quiteria (author)

  9. [Controlling instruments in radiology].

    Science.gov (United States)

    Maurer, M

    2013-10-01

    Due to the rising costs and competitive pressures radiological clinics and practices are now facing, controlling instruments are gaining importance in the optimization of structures and processes of the various diagnostic examinations and interventional procedures. It will be shown how the use of selected controlling instruments can secure and improve the performance of radiological facilities. A definition of the concept of controlling will be provided. It will be shown which controlling instruments can be applied in radiological departments and practices. As an example, two of the controlling instruments, material cost analysis and benchmarking, will be illustrated.

  10. Why the Economic Crisis Was Not Anticipated

    Science.gov (United States)

    Posner, Richard A.

    2009-01-01

    An article in the October 11 "New York Times" attributed the almost universal failure to anticipate the current economic crisis to "insanity"--more precisely, to a psychological inability to give proper weight to past events, so that if there is prosperity today people assume that it will last forever, even though they know that in the past booms…

  11. Laenderyggens degeneration og radiologi

    DEFF Research Database (Denmark)

    Jacobsen, Steffen; Gosvig, Kasper Kjaerulf; Sonne-Holm, Stig

    2006-01-01

    Low back pain (LBP) is one of the most common conditions, and at the same time one of the most complex nosological entities. The lifetime prevalence is approximately 80%, and radiological features of lumbar degeneration are almost universal in adults. The individual risk factors for LBP and signi......Low back pain (LBP) is one of the most common conditions, and at the same time one of the most complex nosological entities. The lifetime prevalence is approximately 80%, and radiological features of lumbar degeneration are almost universal in adults. The individual risk factors for LBP...... and significant relationships between radiological findings and subjective symptoms have both been notoriously difficult to identify. The lack of consensus on clinical criteria and radiological definitions has hampered the undertaking of properly executed epidemiological studies. The natural history of LBP...

  12. Radiologic Technology Program Standards.

    Science.gov (United States)

    Georgia Univ., Athens. Dept. of Vocational Education.

    This publication contains statewide standards for the radiologic technology program in Georgia. The standards are divided into 12 categories; Foundations (philosophy, purpose, goals, program objectives, availability, evaluation); Admissions (admission requirements, provisional admission requirements, recruitment, evaluation and planning); Program…

  13. Hygiene in radiology

    Energy Technology Data Exchange (ETDEWEB)

    Kapp-Schwoerer, A.; Daschner, F.

    1987-07-01

    A survey is given of the hygienic management in radiological departments with special regard to the handling of injections and infusions. It includes prevention of bacterial as well as viral infections. In radiological departments disinfection of X-ray tables is necessary only in exceptional cases. A special proposal for disinfection is added. A safe method of sterilisation of flexible catheders is included, which proved to prevent bacterial infection.

  14. Radiologic science for technologists

    Energy Technology Data Exchange (ETDEWEB)

    Bushong, S.C.

    1988-01-01

    This book provides in-depth coverage of physics, biology and protection for the radiologic technology student. It presents a significant portion of all of the science required of radiologic technology students under one cover. Chapter content reflects a readable and practical organization with outlines listed on the first page of each chapter and sample problems at the end. New to this edition are: new and expanded sections on radiation techniques, digital imaging, and magnetic resonance imaging and ultrasound.

  15. Diagnostic and interventional radiology

    Energy Technology Data Exchange (ETDEWEB)

    Vogl, Thomas J. [Klinikum der Johann Wolfgang Goethe-Universitaet, Frankfurt am Main (Germany). Inst. fuer Diagnostische und Interventionelle Radiologie; Reith, Wolfgang [Universitaetsklinikum des Saarlandes, Homburg/Saar (Germany). Klinik fuer Diagnostische und Interventionelle Neuroradiologie; Rummeny, Ernst J. (ed.) [Technische Univ. Muenchen Klinikum rechts der Isar, Muenchen (Germany). Inst. fuer Radiologie

    2016-08-01

    This exceptional book covers all aspects of diagnostic and interventional radiology within one volume, at a level appropriate for the specialist. From the basics through diagnosis to intervention: the reader will find a complete overview of all areas of radiology. The clear, uniform structure, with chapters organized according to organ system, facilitates the rapid retrieval of information. Features include: Presentation of the normal radiological anatomy Classification of the different imaging procedures according to their diagnostic relevance Imaging diagnosis with many reference images Precise description of the interventional options The inclusion of many instructive aids will be of particular value to novices in decision making: Important take home messages and summaries of key radiological findings smooth the path through the jungle of facts Numerous tables on differential diagnosis and typical findings in the most common diseases offer a rapid overview and orientation Diagnostic flow charts outline the sequence of diagnostic evaluation All standard procedures within the field of interventional radiology are presented in a clinically relevant and readily understandable way, with an abundance of illustrations. This is a textbook, atlas, and reference in one: with more than 2500 images for comparison with the reader's own findings. This comprehensive and totally up-to-date book provides a superb overview of everything that the radiology specialist of today needs to know.

  16. Evaluation guideline for the study of the radiological impact of based nuclear installations (INB) presented in support of releases authorization demands; Guide d'examen pour l'etude de l'impact radiologique d'une installation nucleaire de base (INB) fournie a l'appui des demandes d'autorisation de rejets

    Energy Technology Data Exchange (ETDEWEB)

    Chartier, M.; Despres, A.; Supervil, S.; Conte, D.; Hubert, P.; Oudiz, A.; Champion, D

    2002-10-01

    In the case of a license demand for the effluents release and water taking for a nuclear installation, the operating must realize a study of the nuclear effluents radiological impact on the environment and the public health. In this context, the study presents technical and methodological specifications which led the Direction of the Nuclear Installations Safety (DSIN) and the General Direction of the Health (DGS) to ask the IPSN the elaboration of a guideline to help these studies evaluation. The guideline presents the regulatory context, the description of the installations, the treatment and the control processes, the rules of management, the description of the environment, the estimation of the radiological impacts and the environment control system definition. (A.L.B.)

  17. Velocity anticipation in the optimal velocity model

    Institute of Scientific and Technical Information of China (English)

    DONG Li-yun; WENG Xu-dan; LI Qing-ding

    2009-01-01

    In this paper,the velocity anticipation in the optimal velocity model (OVM) is investigated.The driver adjusts the velocity of his vehicle by the desired headway,which depends on both instantaneous headway and relative velocity.The effect of relative velocity is measured by a sensitivity function.A specific form of the sensitivity function is supposed and the involved parameters are determined by the both numerical simulation and empirical data.It is shown that inclusion of velocity anticipation enhances the stability of traffic flow.Numerical simulations show a good agreement with empirical data.This model provides a better description of real traffic,including the acceleration process from standing states and the deceleration process approaching a stopped car.

  18. Investigating the Reinforcing Value of Binge Anticipation

    Science.gov (United States)

    Pearson, Carolyn M.; Chester, David S.; Powell, David; Wonderlich, Stephen A.; Smith, Gregory T.

    2017-01-01

    Binge eating is a hallmark feature of several types of eating disorders, including bulimia nervosa, anorexia nervosa (binge/purge type), and binge-eating disorder, and is associated with numerous harmful consequences. For decades, researchers have sought to understand what maintains and reinforces this behavior in the face of such profound negative consequences. In this context, researchers have focused on the binge-eating behavior itself, and given little consideration to what may be a crucial part of the process: anticipating or planning binge-eating episodes. In this article, we discuss binge anticipation, its potential reinforcing value, and methodologies which would allow researchers to investigate this potentially critical process in individuals who binge eat. PMID:27184737

  19. Young people's anticipation regarding education and job

    DEFF Research Database (Denmark)

    Juul, Tilde Mette; Lundby, Astrid Arbjerg

    struggle in the decision making process because they see educational and vocational choices as definitive and therefore are afraid to take a ‘wrong’ turn. They seem to think of their educational pathway as linear with no room for detours. This can appear paradoxical on a labour market described as both...... of the reason why young people choose gymnasium instead of vocational education. In the paper we discuss the foundation we outline of young people’s anticipation regarding education and job....

  20. Anticipation: beyond synthetic biology and cognitive robotics

    OpenAIRE

    Slawomir J. Nasuto; Hayashi, Yoshikatsu

    2016-01-01

    The aim of this paper is to propose that current robotic technologies cannot have intentional states any more than is feasible within the sensorimotor variant of embodied cognition. It argues that anticipation is an emerging concept that can provide a bridge between both the deepest philosophical theories about the nature of life and cognition and the empirical biological and cognitive sciences steeped in reductionist and Newtonian conceptions of causality. The paper advocates that in order t...

  1. Intentionality, self-reference and anticipation

    Science.gov (United States)

    Julià, Pere

    1998-07-01

    The conceptual analysis of anticipation inherits all the difficulties associated with intentionality. These can be reduced to: (1) the unwillingness to recognize the dispositional nature of the organism-environment interaction; (2) a reluctance to treat language and perception as bona fide forms of activity, thus blocking an effective approach to self-reference, among other things; (3) the general tendency to accept the ascriptional mode of research as a way out of these difficulties. The stage is then set for the assimilation of animal and human behavior studies to machine simulation; also, for the unnecessary reductionism and largely speculative physiologizing that go with mind-brain analogies in lieu of a holistic approach to the facts. This paper argues for a naturalistic approach. Anticipation is about "bringing the future into the present" as part of adaptation; it involves special activities of a cognitive nature, sometimes automatic and probably shared with other species, at other times self-generated and only possible due to some unique properties of human language. Anticipation is best conceptualized as a component in self-regulation. An account in terms of "etiology" serves to recast the notion of "context"; the importance of conative factors is stressed. The emphasis is on experimentally determined variables and processes rather than on abstract idealization or post facto reconstruction. Incursion and hyperincursion techniques are discussed in connection with a possible formulation centered on the synergistic influence of environmental and organismic factors.

  2. ''Public impact of long term wastes storage links'' between wastes radiological characterization and public impact evaluation at short and long term; ''Impact sur le public des stockages a long terme des dechets'' liens entre caracterisation radiologique des dechets et evaluations d'impact pour le public a court et a long terme

    Energy Technology Data Exchange (ETDEWEB)

    Fillion, E. [Agence Nationale pour la Gestion des Dechets Radioactifs ANDRA, 92 - Chatenay Malabry (France)

    2001-07-01

    The food for thought of these days SFRP being the wastes characterisation, this presentation will put the emphasis on the radioisotopes that interest ANDRA because they are important for their contribution to radiological impact calculated for some scenario. The approach of storage safety and the impact evaluations are presented, for the short term safety, for the long term safety in the case of a surface storage concerning the low and intermediate level radioactive waste, the long term safety in deep storage for high level and years living radioactive waste. (N.C.)

  3. The Future of Radiology

    Directory of Open Access Journals (Sweden)

    Alexander R. Margulis

    2011-07-01

    Full Text Available It has been my good fortune to live and practice radiology during a long period of momentous change – to see the transformation of the discipline from a supportive service into a mainstream, essential branch of clinical medicine. I remember wearing red goggles to adapt my vision before performing fluoroscopy; observing the horrible, now thankfully obsolete, practice of ventriculography, which was considered advanced neuroradiology; and performing other, now rarely prescribed procedures, such as double-contrast barium enemas and intravenous pyelography. Witnessing the beginnings of interventional radiology, I suggested its name in an editorial. I also had the good fortune to see the introduction of computed tomography (CT and a technology first known as nuclear magnetic resonance imaging. Together with fellow members of a committee of the American College of Radiology and editors of prestigious radiological journals, I took part in changing the name of the latter modality to MRI, freeing it from threatening implications. Looking back on these experiences, one lesson stands out above all: Innovation and transformation never cease. Looking forward, it is clear that radiology, along with the rest of medicine, is now undergoing further momentous changes that will affect the future of all those already practicing as well as those yet to start their careers.

  4. Radiological protection; Proteccion radiologica

    Energy Technology Data Exchange (ETDEWEB)

    Azorin N, J. [Universidad Autonoma Metropolitana, Unidad Iztapalapa, Division de Ciencias Basicas e Ingenieria, Av. San Rafael Atlixco 186, Col. Vicentina, 09340 Mexico, D. F. (Mexico); Azorin V, J. C. [Universidad de Guanajuato, Campus Leon, Division de Ciencias e Ingenieria, Loma del Bosque 103, Lomas del Campestre, 37150 Leon de los Aldama, Guanajuato (Mexico)

    2010-07-01

    This work is directed to all those people related with the exercise of the radiological protection and has the purpose of providing them a base of knowledge in this discipline so that they can make decisions documented on technical and scientist factors for the protection of the personnel occupationally exposed, the people in general and the environment during the work with ionizing radiations. Before de lack of a text on this matter, this work seeks to cover the specific necessities of our country, providing a solid presentation of the radiological protection, included the bases of the radiations physics, the detection and radiation dosimetry, the radiobiology, the normative and operational procedures associates, the radioactive wastes, the emergencies and the transport of the radioactive material through the medical and industrial applications of the radiations, making emphasis in the relative particular aspects to the radiological protection in Mexico. The book have 16 chapters and with the purpose of supplementing the given information, are included at the end four appendixes: 1) the radioactive waste management in Mexico, 2-3) the Mexican official standards related with the radiological protection, 4) a terms glossary used in radiological protection. We hope this book will be of utility for those people that work in the investigation and the applications of the ionizing radiations. (Author)

  5. Utilization management in radiology, part 2: perspectives and future directions.

    Science.gov (United States)

    Duszak, Richard; Berlin, Jonathan W

    2012-10-01

    Increased utilization of medical imaging in the early part of the last decade has resulted in numerous efforts to reduce associated spending. Recent initiatives have focused on managing utilization with radiology benefits managers and real-time order entry decision support systems. Although these approaches might seem mutually exclusive and their application to radiology appears unique, the historical convergence and broad acceptance of both programs within the pharmacy sector may offer parallels for their potential future in medical imaging. In this second installment of a two-part series, anticipated trends in radiology utilization management are reviewed. Perspectives on current and future potential roles of radiologists in such initiatives are discussed, particularly in light of emerging physician payment models.

  6. Routine Radiological Environmental Monitoring Plan. Volume 1

    Energy Technology Data Exchange (ETDEWEB)

    Bechtel Nevada

    1999-12-31

    The U.S. Department of Energy manages the Nevada Test Site in a manner that meets evolving DOE Missions and responds to the concerns of affected and interested individuals and agencies. This Routine Radiological Monitoring Plan addressess complicance with DOE Orders 5400.1 and 5400.5 and other drivers requiring routine effluent monitoring and environmental surveillance on the Nevada Test Site. This monitoring plan, prepared in 1998, addresses the activities conducted onsite NTS under the Final Environmental Impact Statement and Record of Decision. This radiological monitoring plan, prepared on behalf of the Nevada Test Site Landlord, brings together sitewide environmental surveillance; site-specific effluent monitoring; and operational monitoring conducted by various missions, programs, and projects on the NTS. The plan provides an approach to identifying and conducting routine radiological monitoring at the NTS, based on integrated technical, scientific, and regulatory complicance data needs.

  7. Interventional Radiology of Male Varicocele: Current Status

    Energy Technology Data Exchange (ETDEWEB)

    Iaccarino, Vittorio, E-mail: vittorio.iaccarino@unina.it; Venetucci, Pietro [University of Naples ' Federico II' , Diagnostic Imaging Department-Cardiovascular and Interventional Radiology, School of Medicine (Italy)

    2012-12-15

    Varicocele is a fairly common condition in male individuals. Although a minor disease, it may cause infertility and testicular pain. Consequently, it has high health and social impact. Here we review the current status of interventional radiology of male varicocele. We describe the radiological anatomy of gonadal veins and the clinical aspects of male varicocele, particularly the physical examination, which includes a new clinical and ultrasound Doppler maneuver. The surgical and radiological treatment options are also described with the focus on retrograde and antegrade sclerotherapy, together with our long experience with these procedures. Last, we compare the outcomes, recurrence and persistence rates, complications, procedure time and cost-effectiveness of each method. It clearly emerges from this analysis that there is a need for randomized multicentre trials designed to compare the various surgical and percutaneous techniques, all of which are aimed at occlusion of the anterior pampiniform plexus.

  8. Organizational decentralization in radiology.

    Science.gov (United States)

    Aas, I H Monrad

    2006-01-01

    At present, most hospitals have a department of radiology where images are captured and interpreted. Decentralization is the opposite of centralization and means 'away from the centre'. With a Picture Archiving and Communication System (PACS) and broadband communications, transmitting radiology images between sites will be far easier than before. Qualitative interviews of 26 resource persons were performed in Norway. There was a response rate of 90%. Decentralization of radiology interpretations seems less relevant than centralization, but several forms of decentralization have a role to play. The respondents mentioned several advantages, including exploitation of capacity and competence. They also mentioned several disadvantages, including splitting professional communities and reduced contact between radiologists and clinicians. With the new technology decentralization and centralization of image interpretation are important possibilities in organizational change. This will be important for the future of teleradiology.

  9. ICRP publication 121: radiological protection in paediatric diagnostic and interventional radiology.

    Science.gov (United States)

    Khong, P-L; Ringertz, H; Donoghue, V; Frush, D; Rehani, M; Appelgate, K; Sanchez, R

    2013-04-01

    of protective shielding, optimisation of exposure factors, use of pulsed fluoroscopy, limiting fluoroscopy time, etc. Major paediatric interventional procedures should be performed by experienced paediatric interventional operators, and a second, specific level of training in radiological protection is desirable (in some countries, this is mandatory). For computed tomography, dose reduction should be optimised by the adjustment of scan parameters (such as mA, kVp, and pitch) according to patient weight or age, region scanned, and study indication (e.g. images with greater noise should be accepted if they are of sufficient diagnostic quality). Other strategies include restricting multiphase examination protocols, avoiding overlapping of scan regions, and only scanning the area in question. Up-to-date dose reduction technology such as tube current modulation, organ-based dose modulation, auto kV technology, and iterative reconstruction should be utilised when appropriate. It is anticipated that this publication will assist institutions in encouraging the standardisation of procedures, and that it may help increase awareness and ultimately improve practices for the benefit of patients.

  10. Radiology illustrated. Hepatobiliary and pancreatic radiology

    Energy Technology Data Exchange (ETDEWEB)

    Choi, Byung Ihn (ed.) [Seoul National Univ. Hospital (Korea, Republic of). Dept. of Radiology

    2014-04-01

    Clear, practical guide to the diagnostic imaging of diseases of the liver, biliary tree, gallbladder, pancreas, and spleen. A wealth of carefully selected and categorized illustrations. Highlighted key points to facilitate rapid review. Aid to differential diagnosis. Radiology Illustrated: Hepatobiliary and Pancreatic Radiology is the first of two volumes that will serve as a clear, practical guide to the diagnostic imaging of abdominal diseases. This volume, devoted to diseases of the liver, biliary tree, gallbladder, pancreas, and spleen, covers congenital disorders, vascular diseases, benign and malignant tumors, and infectious conditions. Liver transplantation, evaluation of the therapeutic response of hepatocellular carcinoma, trauma, and post-treatment complications are also addressed. The book presents approximately 560 cases with more than 2100 carefully selected and categorized illustrations, along with key text messages and tables, that will allow the reader easily to recall the relevant images as an aid to differential diagnosis. At the end of each text message, key points are summarized to facilitate rapid review and learning. In addition, brief descriptions of each clinical problem are provided, followed by both common and uncommon case studies that illustrate the role of different imaging modalities, such as ultrasound, radiography, CT, and MRI.

  11. Radiology's value chain.

    Science.gov (United States)

    Enzmann, Dieter R

    2012-04-01

    A diagnostic radiology value chain is constructed to define its main components, all of which are vulnerable to change, because digitization has caused disaggregation of the chain. Some components afford opportunities to improve productivity, some add value, while some face outsourcing to lower labor cost and to information technology substitutes, raising commoditization risks. Digital image information, because it can be competitive at smaller economies of scale, allows faster, differential rates of technological innovation of components, initiating a centralization-to-decentralization technology trend. Digitization, having triggered disaggregation of radiology's professional service model, may soon usher in an information business model. This means moving from a mind-set of "reading images" to an orientation of creating and organizing information for greater accuracy, faster speed, and lower cost in medical decision making. Information businesses view value chain investments differently than do small professional services. In the former model, producing a better business product will extend image interpretation beyond a radiologist's personal fund of knowledge to encompass expanding external imaging databases. A follow-on expansion with integration of image and molecular information into a report will offer new value in medical decision making. Improved interpretation plus new integration will enrich and diversify radiology's key service products, the report and consultation. A more robust, information-rich report derived from a "systems" and "computational" radiology approach will be facilitated by a transition from a professional service to an information business. Under health care reform, radiology will transition its emphasis from volume to greater value. Radiology's future brightens with the adoption of a philosophy of offering information rather than "reads" for decision making. Staunchly defending the status quo via turf wars is unlikely to constitute a

  12. Radiological worker training

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-10-01

    This Handbook describes an implementation process for core training as recommended in Implementation Guide G441.12, Radiation Safety Training, and as outlined in the DOE Radiological Control Standard (RCS). The Handbook is meant to assist those individuals within the Department of Energy, Managing and Operating contractors, and Managing and Integrating contractors identified as having responsibility for implementing core training recommended by the RCS. This training is intended for radiological workers to assist in meeting their job-specific training requirements of 10 CFR 835. While this Handbook addresses many requirements of 10 CFR 835 Subpart J, it must be supplemented with facility-specific information to achieve full compliance.

  13. Westinghouse radiological containment guide

    Energy Technology Data Exchange (ETDEWEB)

    Aitken, S.B. [Idaho National Engineering Lab., Idaho Falls, ID (United States); Brown, R.L. [Westinghouse Hanford Co., Richland, WA (United States); Cantrell, J.R. [Westinghouse Savannah River Co., Aiken, SC (United States); Wilcox, D.P. [West Valley Nuclear Services Co., Inc., West Valley, NY (United States)

    1994-03-01

    This document provides uniform guidance for Westinghouse contractors on the implementation of radiological containments. This document reflects standard industry practices and is provided as a guide. The guidance presented herein is consistent with the requirements of the DOE Radiological Control Manual (DOE N 5480.6). This guidance should further serve to enable and encourage the use of containments for contamination control and to accomplish the following: Minimize personnel contamination; Prevent the spread of contamination; Minimize the required use of protective clothing and personal protective equipment; Minimize the generation of waste.

  14. Radiological sciences dictionary

    CERN Document Server

    Dowsett, David

    2009-01-01

    The Radiological Sciences Dictionary is a rapid reference guide for all hospital staff employed in diagnostic imaging, providing definitions of over 3000 keywords as applied to the technology of diagnostic radiology.Written in a concise and easy to digest form, the dictionary covers a wide variety of subject matter, including:· radiation legislation and measurement · computing and digital imaging terminology· nuclear medicine radionuclides and radiopharmaceuticals· radiographic contrast agents (x-ray, MRI and ultrasound)· definitions used in ultrasound and MRI technology· statistical exp

  15. Poul Erik Andersen's radiological work on Osteochondrodysplasias and interventional radiology

    DEFF Research Database (Denmark)

    Andersen, Poul Erik

    2011-01-01

    Hospital. His significant experience and extensive scientific work has led to many posts in the Danish Society of Interventional Radiology, the European Society of Radiology and the Cardiovascular and Interventional Radiological Society of Europe, where he is a fellow and has passed the European Board...

  16. Radiologic quality and safety: mapping value into radiology.

    Science.gov (United States)

    Swensen, Stephen J; Johnson, C Daniel

    2005-12-01

    The authors have created a radiology quality map to help understand the opportunities for improvement in the radiologic safety, reliability, quality, and appropriateness of examinations and interventions. It entails 9 steps with dozens of specific opportunities for improving care to patients. The radiology profession has an obligation to robustly document and improve quality and safety in its practice.

  17. 白云鄂博伴生矿资源开发利用对区域环境放射性污染影响的调查%Investigation of Radiological Environment Impact from Exploitation of Bayan Obo Mine

    Institute of Scientific and Technical Information of China (English)

    吴其反; 刘华; 马成辉; 赵顺平; 朱新华; 熊盛青; 王红艳

    2011-01-01

    The ores in Bayan Obo deposit are rich in radioactive thorium,causing a certain radiological impact on some nearby places during mining and processing to a varying extent.A program of airborne gamma ray spectrometry,as well as carborne,in situ gamma ray spectrometry and sampling for laboratory gamma ray spectrometry in potentially contaminated area has been conducted.As a result,radioactive contamination source terms,areas and severity have been determined and served as basic data for assessment of environmental radiological impact resulting from the exploitation of Bayan Obo mine.In the meantime,the techniques of airborne,carborne,in situ gama ray spectrometry has been achieved.%白云鄂博矿石中含有较高的天然放射性钍,在采矿、选矿、冶炼钢铁和稀土产品生产过程中,局部地区的环境受到了不同程度的影响。通过对包头市、白云鄂博地区开展航空γ能谱测量,在重点地区配合地面车载γ能谱测量和便携式γ能谱测量、土壤样品采集分析等方法,基本查明放射性污染源项、污染范围和污染程度,为该地区放射性环境影响评价提供基础资料和科学依据;同时,也取得了放射性污染调查航空γ能谱测量、车载γ能谱测量等技术成果。

  18. Radiochemical characterization and environmental radiological impact in tin and lead processing from cassiterite; Caracterizacao radioquimica e impacto radiologico ambiental no processamento de cassiterita para producao de estanho e chumbo metalicos

    Energy Technology Data Exchange (ETDEWEB)

    Garcia, Marcia Aparecida Antico

    2009-07-01

    The tin and lead industry located in Pirapora do Bom Jesus in the state of Sao Paulo, Brazil, is responsible for the production of about 7000 ton year-1 of tin and 350 ton year-1 of lead. The raw material used in this facility is cassiterite, which presents in its composition concentrations of natural radionuclides from the uranium and thorium series up to 660 kBq kg{sup -1} and 450 kBq kg{sup -1}, respectively. The smelting and refining processes may lead to concentrations of these radionuclides, mainly in the precipitated dust and in slag. In the operational process, intermediate refining and final slag are obtained and are stored in piles in open air. It is estimated that the amount of waste stored is about 600000 ton. This work aims to study the environmental radiological impact of the operation of this facility and to establish its Environmental Radiological Monitoring Program. In order to accomplish this task the content of radioactivity was determined in the raw material, products, byproducts, residue, deposition pond and exhausting systems. Although in the raw material the radionuclides from the uranium and thorium series are almost in equilibrium, during the processing this equilibrium is disrupted and the radionuclides migrate according to their chemical properties. Concentrations up to 31 kBq kg{sup -1} for {sup 238}U, 69 kBq kg{sup -1} for {sup 226}Ra, 2.5 kBq kg{sup -1} for {sup 210}Pb, 130 kBq kg{sup -1} for {sup 232}Th and 120 kBq kg{sup -1} for {sup 228}Ra were obtained in the slag. The environmental radiological impact was established by measuring the radionuclides in the critical compartments that is the ones that may cause exposure to the public. If the residue pile is considered, the critical pathways are the internal exposition from the dust inhalation and the water ingestion, due to re suspension and dispersion of the pile dust and groundwater contamination, respectively; and external exposure due to immersion in the radioactive cloud and soil

  19. Postmodern Anticipations with E. A. Poe

    Directory of Open Access Journals (Sweden)

    Lucian-Vasile SZABO

    2013-06-01

    Full Text Available The purpose of the present study is to serve as an introduction to a postmodern reading of Edgar Allan Poe’s short prose. Adventurous approach, as the author manifested himself as a writer in the first part of the 19th century, when romanticism revived and modern paradigm was founded. Based on the assessments expressed on postmodernism and using the tools proposed by various field researchers, we discover in Poe’s work anticipations of the narrative structure method specific for our present times. His concern for the newspaper reader, the insertion of general press topics and articles in his prose, the use of the sensational side of events in his newspaper reports, the ironic approach of real and diegetic facts allow a fresh reading, revaluating this surprising writer. Remarkable are his projections which come close to the SF genre, his confidence in the progress of science and the permanent impairment of this confidence, generated by the fear of world destruction. The conclusion would be that Poe’s prose allows certain postmodern anticipative projections to be decoded and the research to be extended beyond the conventional boundaries of modernity.

  20. The Bionic Anticipation of Natural Disasters

    Institute of Scientific and Technical Information of China (English)

    Helmut Tributsch

    2005-01-01

    After major natural disasters, such as the recent earthquake-tsunami event in South Asia, reports appear about the mysterious ability of animals to anticipate and to escape the impending danger. This is an opportunity to recall the long history of this phenomenon in the traditions of different civilizations, to evaluate Chinese efforts, 30 -40 years ago, to use this phenomenon for earthquake prediction, and to judge its state of acceptance in modern science. An effort is made to introduce this phenomenon as a research field of modern bionics. The timing is favorable since, increasingly, infrared thermal anomalies, monitored from satellite, suggesting litho-atmospheric processes, are found to precede earthquakes.They were unexpected by seismologists and are here suggested to essentially reflect the energy conversion patterns responsible for the signals monitored by animals. The aim is to learn from animals in the long term how natural disasters can better be anticipated, and how simple technical warning systems can be developed. Some challenges are analyzed. One is interpretation of the nature of energy release prior to the main earthquake disaster resulting in "macro-anomaly" precursors,another is better to understand the effect on animal senses. The role of non-linear cooperative phenomena including tsunamitype waves is emphasized.

  1. Anticipation: Beyond synthetic biology and cognitive robotics.

    Science.gov (United States)

    Nasuto, Slawomir J; Hayashi, Yoshikatsu

    2016-10-01

    The aim of this paper is to propose that current robotic technologies cannot have intentional states any more than is feasible within the sensorimotor variant of embodied cognition. It argues that anticipation is an emerging concept that can provide a bridge between both the deepest philosophical theories about the nature of life and cognition and the empirical biological and cognitive sciences steeped in reductionist and Newtonian conceptions of causality. The paper advocates that in order to move forward, cognitive robotics needs to embrace new platforms and a conceptual framework that will enable it to pursue, in a meaningful way, questions about autonomy and purposeful behaviour. We suggest that hybrid systems, part robotic and part cultures of neurones, offer experimental platforms where different dimensions of enactivism (sensorimotor, constitutive foundations of biological autonomy, including anticipation), and their relative contributions to cognition, can be investigated in an integrated way. A careful progression, mindful to the deep philosophical concerns but also respecting empirical evidence, will ultimately lead towards unifying theoretical and empirical biological sciences and may offer advancement where reductionist sciences have been so far faltering.

  2. 324 Building Baseline Radiological Characterization

    Energy Technology Data Exchange (ETDEWEB)

    R.J. Reeder, J.C. Cooper

    2010-06-24

    This report documents the analysis of radiological data collected as part of the characterization study performed in 1998. The study was performed to create a baseline of the radiological conditions in the 324 Building.

  3. Radiological Approach to Forefoot Pain

    Directory of Open Access Journals (Sweden)

    Sai Chung Ho

    2015-06-01

    Full Text Available Forefoot pain is a common clinical complaint in orthopaedic practice. In this article, we discuss the anatomy of the forefoot, clinical and radiological approaches to forefoot pain, and common painful forefoot disorders and their associated radiological features.

  4. Anticipation learning from the past the Russian/Soviet contributions to the science of anticipation

    CERN Document Server

    2015-01-01

    This volume presents the work of leading scientists from Russia, Georgia, Estonia, Lithuania, Israel, and the USA, revealing major insights long unknown to the scientific community. Without any doubt their work will provide a springboard for further research in anticipation. Until recently, Robert Rosen (Anticipatory Systems) and Mihai Nadin (MIND – Anticipation and Chaos) were deemed forerunners in this still new knowledge domain. The distinguished neurobiologist, Steven Rose, pointed to the fact that Soviet neuropsychological theories have not on the whole been well received by Western science. These earlier insights as presented in this volume make an important contribution to the foundation of the science of anticipation. It is shown that the daring hypotheses and rich experimental evidence produced by Bernstein, Beritashvili, Ukhtomsky, Anokhin, and Uznadze, among others—extend foundational work to aspects of neuroscience, physiology, motorics, education.

  5. Paediatric musculoskeletal interventional radiology

    Science.gov (United States)

    Paolantonio, Guglielmo; Fruhwirth, Rodolfo; Alvaro, Giuseppe; Parapatt, George K; Toma', Paolo; Rollo, Massimo

    2016-01-01

    Interventional radiology technique is now well established and widely used in the adult population. Through minimally invasive procedures, it increasingly replaces surgical interventions that involve higher percentages of invasiveness and, consequently, of morbidity and mortality. For these advantageous reasons, interventional radiology in recent years has spread to the paediatric age as well. The aim of this study was to review the literature on the development, use and perspectives of these procedures in the paediatric musculoskeletal field. Several topics are covered: osteomuscle neoplastic malignant and benign pathologies treated with invasive diagnostic and/or therapeutic procedures such as radiofrequency ablation in the osteoid osteoma; invasive and non-invasive procedures in vascular malformations; treatment of aneurysmal bone cysts; and role of interventional radiology in paediatric inflammatory and rheumatic inflammations. The positive results that have been generated with interventional radiology procedures in the paediatric field highly encourage both the development of new ad hoc materials, obviously adapted to young patients, as well as the improvement of such techniques, in consideration of the fact that childrens' pathologies do not always correspond to those of adults. In conclusion, as these interventional procedures have proven to be less invasive, with lower morbidity and mortality rates as well, they are becoming a viable and valid alternative to surgery in the paediatric population. PMID:26235144

  6. Radiologic Technology Program Guide.

    Science.gov (United States)

    Georgia Univ., Athens. Dept. of Vocational Education.

    This guide presents the standard curriculum for technical institutes in Georgia. The curriculum addresses the minimum competencies for a radiologic technology program. The guide contains four major sections. The General Information section contains an introduction giving an overview and defining purpose and objectives; a program description,…

  7. Radiological Safety Handbook.

    Science.gov (United States)

    Army Ordnance Center and School, Aberdeen Proving Ground, MD.

    Written to be used concurrently with the U.S. Army's Radiological Safety Course, this publication discusses the causes, sources, and detection of nuclear radiation. In addition, the transportation and disposal of radioactive materials are covered. The report also deals with the safety precautions to be observed when working with lasers, microwave…

  8. Ethical problems in radiology: radiological consumerism.

    Science.gov (United States)

    Magnavita, N; Bergamaschi, A

    2009-10-01

    One of the causes of the increasing request for radiological examinations occurring in all economically developed countries is the active role played by the patient-consumer. Consumerism places the radiologist in an ethical dilemma, between the principle of autonomy on the one hand and the ethical principles of beneficence, nonmaleficence and justice on the other. The choice made by radiologists in moral dilemmas is inspired by an adherence to moral principles, which in Italy and elsewhere refer to the Judaeo-Christian tradition or to neo-Darwinian relativism. Whatever the choice, the radiologist is bound to adhere to that choice and to provide the patient with all the relevant information regarding his or her state of health.

  9. Study and radiological impact assessment produced by activities of different non-nuclear industries. Titanium dioxide industries; Estudio y evaluacion del impacto radiologico producido por las actividades de diversas industrias no nucleares en el sur de Espana. Industrias de dioxido de titanio

    Energy Technology Data Exchange (ETDEWEB)

    Garcia-Tenorio, R.; Manjon, G.; Abril, J.M.

    2010-07-01

    After a careful study and evaluation of radiological impact, the conclusion is that these industries do not need to be subject to control, and it is not necessary any corrective action to reduce the exposition and/or to apply any radiation protection measures.

  10. Study and radiological impact assesstment produced by activities of different non-nuclear industries. Titanium dioxide industries; Estudio y evaluacion del impacto radiologico producido por las actividades de diversas industrias no nucleares en el sur de Espana. Industrias de dioxido de titanio

    Energy Technology Data Exchange (ETDEWEB)

    Garcia-Tenorio, R.; Manjon, G.; Abril, J.M. (and others)

    2010-07-01

    After a careful study and evaluation of radiological impact, the conclusiono is that these industries do not need to be subject to control, and it is not necessary any corrective action to reduce the exposition and/or to apply any radiation protection measures.

  11. Anticipated Activities in Maritime Work, Process Control, and Business Processes

    DEFF Research Database (Denmark)

    Andersen, Peter Bøgh

    2004-01-01

    Most activities are anticipated before they are executed. The paper presents methods for describing this anticipated state and the processes that may lead to a new state where the activities are executed. The method builds on linguistic case-theory.......Most activities are anticipated before they are executed. The paper presents methods for describing this anticipated state and the processes that may lead to a new state where the activities are executed. The method builds on linguistic case-theory....

  12. Human performance in radiological survey scanning

    Energy Technology Data Exchange (ETDEWEB)

    Brown, W.S. [Brookhaven National Lab., Upton, NY (United States); Abelquist, E.W. [Oak Ridge Inst. for Science and Education, TN (United States)

    1998-03-01

    The probability of detecting residual contamination in the field using portable radiological survey instruments depends not only on the sensitivity of the instrumentation used in scanning, but also on the surveyor`s performance. This report provides a basis for taking human performance into account in determining the minimum level of activity detectable by scanning. A theoretical framework was developed (based on signal detection theory) which allows influences on surveyors to be anticipated and understood, and supports a quantitative assessment of performance. The performance of surveyors under controlled yet realistic field conditions was examined to gain insight into the task and to develop means of quantifying performance. Then, their performance was assessed under laboratory conditions to quantify more precisely their ability to make the required discriminations. The information was used to characterize surveyors` performance in the scanning task and to provide a basis for predicting levels of radioactivity that are likely to be detectable under various conditions by surveyors using portable survey instruments.

  13. Radiation exposure and radiological protection in interventional radiological procedures with special attention to neurointerventional radiology

    Energy Technology Data Exchange (ETDEWEB)

    Okamoto, Kouichirou; Sakai, Kunio [Niigata Univ. (Japan). School of Medicine; Yoshimura, Shutaro; Oka, Tetsuya; Ito, Jusuke

    2000-11-01

    It is necessary to interventional radiologists to understand the system of radiological protection recommended by the International Commission on Radiological Protection: justification, optimization, and individual dose and risk limits. Estimation and measurements of the radiation exposure to patients and personnel are important for radiological protection to avoid radiation injuries, such as temporal epilation and cataract. The practical principle of ALARA (as low as reasonably achievable) should be kept in any interventional radiological procedure. (author)

  14. Anticipated synchronization in neuronal network motifs

    Science.gov (United States)

    Matias, F. S.; Gollo, L. L.; Carelli, P. V.; Copelli, M.; Mirasso, C. R.

    2013-01-01

    Two identical dynamical systems coupled unidirectionally (in a so called master-slave configuration) exhibit anticipated synchronization (AS) if the one which receives the coupling (the slave) also receives a negative delayed self-feedback. In oscillatory neuronal systems AS is characterized by a phase-locking with negative time delay τ between the spikes of the master and of the slave (slave fires before the master), while in the usual delayed synchronization (DS) regime τ is positive (slave fires after the master). A 3-neuron motif in which the slave self-feedback is replaced by a feedback loop mediated by an interneuron can exhibits both AS and DS regimes. Here we show that AS is robust in the presence of noise in a 3 Hodgkin-Huxley type neuronal motif. We also show that AS is stable for large values of τ in a chain of connected slaves-interneurons.

  15. Intent, Future, Anticipation: A Semiotic, Transdisciplinary Approach

    Science.gov (United States)

    Loeckenhoff, Hellmut

    2008-10-01

    Encouraged e.g. by chaos theory and (bio-)semiotics science is trying to attempt a deeper understanding of life. The paradigms of physics alone prove not sufficient to explain f. ex. evolution or phylogenesis and ontogenesis. In complement, research on life systems reassesses paradigmatic models not only for living systems and not only on the strict biological level. The ontological as well as the epistemological base of science in toto is to be reconsidered. Science itself proves a historical and cultural phenomenon and can be seen as shaped by evolution and semiosis. -Living systems are signified by purpose, intent and, necessarily, by the faculty to anticipate e.g. the cyclic changes of their environment. To understand the concepts behind a proposal is developed towards a model set constituting a transdisciplinary approach. It rests e.g. on concepts of systems, evolution, complexity and semiodynamics.

  16. Parallel Error Detection for Leading Zero Anticipation

    Institute of Scientific and Technical Information of China (English)

    Ge Zhang; Wei-Wu Hu; Zi-Chu Qi

    2006-01-01

    The algorithm and its implementation of the leading zero anticipation (LZA) are very vital for the performance of a high-speed floating-point adder in today's state of art microprocessor design. Unfortunately, in predicting "shift amount"by a conventional LZA design, the result could be off by one position. This paper presents a novel parallel error detection algorithm for a general-case LZA. The proposed approach enables parallel execution of conventional LZA and its error detection, so that the error-indication signal can be generated earlier in the stage of normalization, thus reducing the critical path and improving overall performance. The circuit implementation of this algorithm also shows its advantages of area and power compared with other previous work.

  17. Time discounting and pain anticipation. Experimental evidence

    Directory of Open Access Journals (Sweden)

    Brañas Garza, Pablo

    2012-03-01

    Full Text Available This paper deals with pain anticipation experienced before medical procedures. our experimental results show that individuals with lower time discount factors are more prone to suffer pain in advance. We provide a framework to rationalize the connection between pain anticipation and impatience. in this set up, more impatient subjects, who only value very near events, mainly take into account the present negative effects of medical procedures (the costs, whereas more patient individuals have a net positive valuation of medical events, given that they are able to value both the cost incurred now and all the benefits to be accrued in the future.

    Este artículo trata de la anticipación del dolor experimentada antes de los procedimientos médicos. nuestros resultados experimentales muestran que los individuos con factor de descuento temporal más bajo son más proclives a sufrir dolor por adelantado. el artículo proporciona un marco en el que racionalizar la relación existente entre impaciencia y anticipación del dolor. en este marco, los sujetos más impacientes, que evalúan sólo los eventos muy próximos en el tiempo, focalizan su atención principalmente en los efectos negativos de los procedimientos médicos (sólo los costes, mientras que los individuos más pacientes tienen una valoración neta positiva de los actos médicos puesto que valoran tanto el coste en el que se incurre en el presente como los beneficios que se obtendrán en el futuro.

  18. The American College of Radiology white paper on radiation dose in medicine:deep impact on the practice of cardiovascular imaging

    Directory of Open Access Journals (Sweden)

    Semelka Richard

    2007-10-01

    Full Text Available Abstract In April 2007, the American College of Radiology released the "White Paper on Radiation Dose in Medicine". The Blue Ribbon panel members included private practice and academic diagnostic radiologists, medical physicists, representatives of industry and regulatory groups, and a patient advocate. The panel concluded that the expanding use of imaging modalities using ionizing radiations such as CT and nuclear medicine may result in an increased incidence of radiation-related cancer in the exposed population in the not-too-distant future, and this problem can likely be minimized by preventing the inappropriate use of such imaging and by optimizing studies that are performed to obtain the best image quality with the lowest radiation dose. The White Paper set forth practical suggestions to minimize radiation risk, including education for all stakeholders in the principles of radiation safety and preferential use of alternative (non-ionizing imaging techniques, such as MRI and ultrasound. These recommendations are especially relevant for cardiologists, who prescribe and/or practice medical imaging examinations accounting for at least 50% of the total effective dose by radiation medicine, which amounts to an equivalent of about 160 chest x-rays per head per year in US. Were they be enacted, these simple recommendations would determine a revolution in the contemporary way of teaching, learning and practising cardiology.

  19. The American College of Radiology white paper on radiation dose in medicine:deep impact on the practice of cardiovascular imaging.

    Science.gov (United States)

    Picano, Eugenio; Vano, Eliseo; Semelka, Richard; Regulla, Dieter

    2007-10-31

    In April 2007, the American College of Radiology released the "White Paper on Radiation Dose in Medicine". The Blue Ribbon panel members included private practice and academic diagnostic radiologists, medical physicists, representatives of industry and regulatory groups, and a patient advocate. The panel concluded that the expanding use of imaging modalities using ionizing radiations such as CT and nuclear medicine may result in an increased incidence of radiation-related cancer in the exposed population in the not-too-distant future, and this problem can likely be minimized by preventing the inappropriate use of such imaging and by optimizing studies that are performed to obtain the best image quality with the lowest radiation dose. The White Paper set forth practical suggestions to minimize radiation risk, including education for all stakeholders in the principles of radiation safety and preferential use of alternative (non-ionizing) imaging techniques, such as MRI and ultrasound. These recommendations are especially relevant for cardiologists, who prescribe and/or practice medical imaging examinations accounting for at least 50% of the total effective dose by radiation medicine, which amounts to an equivalent of about 160 chest x-rays per head per year in US. Were they be enacted, these simple recommendations would determine a revolution in the contemporary way of teaching, learning and practising cardiology.

  20. Radiological impact to the population of the three major accidents happened in the civil nuclear industry; Impacto radiologico a la poblacion de los tres mayores accidentes ocurridos en la industria nuclear civil

    Energy Technology Data Exchange (ETDEWEB)

    Ortiz M, J. R., E-mail: Acamb33@hotmail.com [Sociedad Nuclear Mexicana, Mexico D. F. (Mexico)

    2013-10-15

    The greatest fear of the population before a nuclear accident, is the radiological impact to the health of people, due to the exposure to the liberated radioactive material during the accident, this fear is generally exaggerated or not well managed by the media. The best estimate in the received doses and their possible effects is carried out based on the information obtained during a certain time after the accident event. This work contains a summary of the information in the topic that at the present time has presented institutions as: the World Health Organization (Who), the United Nations Scientific Committee on Effects of Atomic Radiation (UNSCEAR), the Nuclear Regulatory Commission (NRC) and the World Nuclear Association, among others. The considered accidents are: first, the Unit-2 of the nuclear power plant of the Three Mile Island in Pennsylvania, USA occurred 28 March of 1979, in the Reactor TMI-2, type PWR of 900 M We; the second accident was 26 April of 1986, in the Unit-4 of the nuclear power plant of Chernobyl, in Ukraine, the involved reactor was type BRMK, of 1000 M We moderated by graphite and cooled with light water, the power plant is located to 100 Km to the northwest of Kiev; 25 years later occurred the third accident in the nuclear power plant of Fukushima Dai-ichi, in Japan, affecting at four of the six reactors of the power plant. A brief description of the accident is presented in each case, including the magnitude of the provoked liberations of radioactive material, the estimate doses of the population and the affected workers are presented, as well as the possible consequences of these doses on the health. The objective of this diffusion work is to give knowledge to the nuclear and radiological community of the available information on the topic, in order to be located in the appropriate professional context. (author)

  1. User questionnaire to evaluate the radiological workspace.

    Science.gov (United States)

    van Ooijen, Peter M A; Koesoema, Allya P; Oudkerk, Matthijs

    2006-01-01

    Over the past few years, an increase in digitalization of radiology departments can be seen, which has a large impact on the work of the radiologists. This impact is not only demonstrated by the increased use of digital images but also by changing demands on the whole reading environment. In this study, we evaluated the satisfaction of our radiologists with our digital Picture Archival and Communication System environment and their workspace. This evaluation was performed by distribution of a questionnaire consisting of a score sheet and some open questions to all radiologists and residents. Out of 25 questionnaires, 12 were adequately answered and returned. Results clearly showed that most problems were present in the area of reading room design and layout and comfort and ergonomics. Based on the results from this study, adaptations were made and the results were also used in the planning of the redesign of the entire department of radiology.

  2. Data mining in radiology.

    Science.gov (United States)

    Kharat, Amit T; Singh, Amarjit; Kulkarni, Vilas M; Shah, Digish

    2014-04-01

    Data mining facilitates the study of radiology data in various dimensions. It converts large patient image and text datasets into useful information that helps in improving patient care and provides informative reports. Data mining technology analyzes data within the Radiology Information System and Hospital Information System using specialized software which assesses relationships and agreement in available information. By using similar data analysis tools, radiologists can make informed decisions and predict the future outcome of a particular imaging finding. Data, information and knowledge are the components of data mining. Classes, Clusters, Associations, Sequential patterns, Classification, Prediction and Decision tree are the various types of data mining. Data mining has the potential to make delivery of health care affordable and ensure that the best imaging practices are followed. It is a tool for academic research. Data mining is considered to be ethically neutral, however concerns regarding privacy and legality exists which need to be addressed to ensure success of data mining.

  3. Data mining in radiology

    Directory of Open Access Journals (Sweden)

    Amit T Kharat

    2014-01-01

    Full Text Available Data mining facilitates the study of radiology data in various dimensions. It converts large patient image and text datasets into useful information that helps in improving patient care and provides informative reports. Data mining technology analyzes data within the Radiology Information System and Hospital Information System using specialized software which assesses relationships and agreement in available information. By using similar data analysis tools, radiologists can make informed decisions and predict the future outcome of a particular imaging finding. Data, information and knowledge are the components of data mining. Classes, Clusters, Associations, Sequential patterns, Classification, Prediction and Decision tree are the various types of data mining. Data mining has the potential to make delivery of health care affordable and ensure that the best imaging practices are followed. It is a tool for academic research. Data mining is considered to be ethically neutral, however concerns regarding privacy and legality exists which need to be addressed to ensure success of data mining.

  4. Microcephaly: a radiological review

    Energy Technology Data Exchange (ETDEWEB)

    Tarrant, Ailbhe; Garel, Catherine; Germanaud, David; Lenoir, Marion; Pointe, Hubert Ducou le [Universite Paris VI Pierre et Marie Curie, Radiology Department, Hopital d' Enfants Armand-Trousseau, Paris (France); Villemeur, Thierry Billette de; Mignot, Cyril [Universite Paris V Rene Descartes, CNRS (UMR 8104), Inserm, U567, Institut Cochin, Paris (France); Universite Paris VI Pierre et Marie Curie, Paediatric Neurology Department, Hopital d' Enfants Armand-Trousseau, Paris (France)

    2009-08-15

    Microcephaly results from inadequate brain growth during development. It may develop in utero, and therefore be present at birth, or may develop later as a result of perinatal events or postnatal conditions. The aetiology of microcephaly may be congenital (secondary to cerebral malformations or metabolic abnormalities) or acquired, most frequently following an ischaemic insult. This distinct radiological and pathological entity is reviewed with a specific focus on aetiology. (orig.)

  5. Radiological safety and control

    Energy Technology Data Exchange (ETDEWEB)

    Chang, Sea Young; Yoo, Y. S.; Lee, J. C.; Lee, T. Y.; Lee, J. L.; Kim, B. W.; Lee, B. J.; Chung, K. K.; Chung, R. I.; Kim, J. S.; Lee, H. S.; Han, Y. D.; Lee, J. I.; Lee, K. C.; Yoon, J. H.; Sul, C. W.; Kim, C. K.; Yoon, K. S.; Seo, K. W.; Yoon, Y. C. [Korea Atomic Energy Research Institute, Taejon (Korea, Republic of)

    1996-01-01

    This report describes the annual results of radiological safety and control program of 1995. This program consists of working area monitoring including HANARO, personnel radiation monitoring, education for radiation protection. As a result, the objectives of radiation protection have been achieved satisfactorily through the activities mentioned above. Also, the calibration services were provided to insure accurate radiation measurement in the radiation working places. 21 figs., 39 tabs., 5 refs. (Author) .new.

  6. Disabling Radiological Dispersal Terror

    Energy Technology Data Exchange (ETDEWEB)

    Hart, M

    2002-11-08

    Terror resulting from the use of a radiological dispersal device (RDD) relies upon an individual's lack of knowledge and understanding regarding its significance. Disabling this terror will depend upon realistic reviews of the current conservative radiation protection regulatory standards. It will also depend upon individuals being able to make their own informed decisions merging perceived risks with reality. Preparation in these areas will reduce the effectiveness of the RDD and may even reduce the possibility of its use.

  7. The new radiology workforce: changing expectations.

    Science.gov (United States)

    Cronan, John J

    2004-05-01

    The zeitgeist of the new radiology workforce can best be described by a Bob Dylan song title: "The Times They Are A-Changin'." The new generation of physicians, although embracing the same foundations of medical practice as previous generations, places greater emphasis on personal satisfaction than its predecessors. Gone are the days when physicians operated as sole practitioners; today's workforce member is content to function in the role of "employee" in a trade-off for more lifestyle flexibility. This change has occurred not because of one specific factor but because of a change in the profession of medicine coupled with a combination of factors; familial responsibilities, avocational activities, and personal satisfaction have surfaced as motivating factors in choosing a profession. Today's workforce has a personal perception of success that may not be fulfilled solely by the contemporary practice of medicine. With the radiologist shortages that are now occurring and anticipated increased demand for staff radiologists, today's radiology workforce has helped shape the specialty into one that is altering its structure to attract and retain its workforce.

  8. Impact on Patient Safety and Satisfaction of Implementation of an Outpatient Clinic in Interventional Radiology (IPSIPOLI-Study): A Quasi-Experimental Prospective Study

    Energy Technology Data Exchange (ETDEWEB)

    Lutjeboer, Jacob, E-mail: j.lutjeboer@lumc.nl; Burgmans, Mark Christiaan, E-mail: m.c.burgmans@lumc.nl, E-mail: mburgmans@hotmail.com; Chung, Kaman, E-mail: kaman.chung10@gmail.com; Erkel, Arian Robert van, E-mail: a.r.van-erkel@lumc.nl [Leiden University Medical Center, Department of Radiology (Netherlands)

    2015-06-15

    PurposeInterventional radiology (IR) procedures are associated with high rates of preparation and planning errors. In many centers, pre-procedural consultation and screening of patients is performed by referring physicians. Interventional radiologists have better knowledge about procedure details and risks, but often only get acquainted with the patient in the procedure room. We hypothesized that patient safety (PS) and patient satisfaction (PSAT) in elective IR procedures would improve by implementation of a pre-procedural visit to an outpatient IR clinic.Material and MethodsIRB approval was obtained and informed consent was waived. PS and PSAT were measured in patients undergoing elective IR procedures before (control group; n = 110) and after (experimental group; n = 110) implementation of an outpatient IR clinic. PS was measured as the number of process deviations. PSAT was assessed using a questionnaire measuring Likert scores of three dimensions: interpersonal care aspects, information/communication, and patient participation. Differences in PS and PSAT between the two groups were compared using an independent t test.ResultsThe average number of process deviations per patient was 0.39 in the control group compared to 0.06 in the experimental group (p < 0.001). In 9.1 % patients in the control group, no legal informed consent was obtained compared to 0 % in the experimental group. The mean overall Likert score was significantly higher in the experimental group compared to the control group: 2.68 (SD 0.314) versus 2.48 (SD 0.381) (p < 0.001).ConclusionPS and PSAT improve significantly if patients receive consultation and screening in an IR outpatient clinic prior to elective IR procedures.

  9. Pitfalls in diagnostic radiology

    Energy Technology Data Exchange (ETDEWEB)

    Peh, Wilfred C.G. (ed.) [Khoo Teck Puat Hospital (Singapore). Dept. of Diagnostic Radiology

    2015-04-01

    Only textbook to focus primarily on the topic of pitfalls in diagnostic radiology. Highlights the pitfalls in a comprehensive and systematic manner. Written by experts in different imaging modalities and subspecialties from reputable centers across the world. The practice of diagnostic radiology has become increasingly complex, with the use of numerous imaging modalities and division into many subspecialty areas. It is becoming ever more difficult for subspecialist radiologists, general radiologists, and residents to keep up with the advances that are occurring year on year, and this is particularly true for less familiar topics. Failure to appreciate imaging pitfalls often leads to diagnostic error and misinterpretation, and potential medicolegal problems. Diagnostic errors may be due to various factors such as inadequate imaging technique, imaging artifacts, failure to recognize normal structures or variants, lack of correlation with clinical and other imaging findings, and poor training or inexperience. Many, if not most, of these factors are potentially recognizable, preventable, or correctable. This textbook, written by experts from reputable centers across the world, systematically and comprehensively highlights the pitfalls that may occur in diagnostic radiology. Both pitfalls specific to different modalities and techniques and those specific to particular organ systems are described with the help of numerous high-quality illustrations. Recognition of these pitfalls is crucial in helping the practicing radiologist to achieve a more accurate diagnosis.

  10. Will Marriage Matter? Effects of Marriage Anticipated by Same-Sex Couples

    Science.gov (United States)

    Shulman, Julie L.; Gotta, Gabrielle; Green, Robert-Jay

    2012-01-01

    The current study used an online survey to explore the anticipated impact of legalized marriage on partners in same-sex couples living in California. These data were gathered prior to the California Supreme Court decision in May 2008 legalizing same-sex marriage, which held sway for 5 months before California Proposition 8 eliminating same-sex…

  11. The Radiology Resident iPad Toolbox: an educational and clinical tool for radiology residents.

    Science.gov (United States)

    Sharpe, Emerson E; Kendrick, Michael; Strickland, Colin; Dodd, Gerald D

    2013-07-01

    Tablet computing and mobile resources are the hot topics in technology today, with that interest spilling into the medical field. To improve resident education, a fully configured iPad, referred to as the "Radiology Resident iPad Toolbox," was created and implemented at the University of Colorado. The goal was to create a portable device with comprehensive educational, clinical, and communication tools that would contain all necessary resources for an entire 4-year radiology residency. The device was distributed to a total of 34 radiology residents (8 first-year residents, 8 second-year residents, 9 third-year residents, and 9 fourth-year residents). This article describes the process used to develop and deploy the device, provides a distillation of useful applications and resources decided upon after extensive evaluation, and assesses the impact this device had on resident education. The Radiology Resident iPad Toolbox is a cost-effective, portable, educational instrument that has increased studying efficiency; improved access to study materials such as books, radiology cases, lectures, and web-based resources; and increased interactivity in educational conferences and lectures through the use of audience-response software, with questions geared toward the new ABR board format. This preconfigured tablet fully embraces the technology shift into mobile computing and represents a paradigm shift in educational strategy.

  12. Cardiac fluid dynamics anticipates heart adaptation.

    Science.gov (United States)

    Pedrizzetti, Gianni; Martiniello, Alfonso R; Bianchi, Valter; D'Onofrio, Antonio; Caso, Pio; Tonti, Giovanni

    2015-01-21

    Hemodynamic forces represent an epigenetic factor during heart development and are supposed to influence the pathology of the grown heart. Cardiac blood motion is characterized by a vortical dynamics, and it is common belief that the cardiac vortex has a role in disease progressions or regression. Here we provide a preliminary demonstration about the relevance of maladaptive intra-cardiac vortex dynamics in the geometrical adaptation of the dysfunctional heart. We employed an in vivo model of patients who present a stable normal heart function in virtue of the cardiac resynchronization therapy (CRT, bi-ventricular pace-maker) and who are expected to develop left ventricle remodeling if pace-maker was switched off. Intra-ventricular fluid dynamics is analyzed by echocardiography (Echo-PIV). Under normal conditions, the flow presents a longitudinal alignment of the intraventricular hemodynamic forces. When pacing is temporarily switched off, flow forces develop a misalignment hammering onto lateral walls, despite no other electro-mechanical change is noticed. Hemodynamic forces result to be the first event that evokes a physiological activity anticipating cardiac changes and could help in the prediction of longer term heart adaptations.

  13. Evaluation of environmental radiological impact of {sup 137} Cs repository area, site of Abadia de Goias, using the RESRAD model; Avaliacao do impacto radiologico ambiental na area do repositorio de {sup 137} Cs, em Abadia de Goias, utilizando o modelo RESRAD

    Energy Technology Data Exchange (ETDEWEB)

    Oliveira Loureiro, C. de [Minas Gerais Univ., Belo Horizonte, MG (Brazil). Escola de Engenharia; Aquino Branco, O.E. de [Centro de Desenvolvimento da Tecnologia Nuclear (CDTN), Belo Horizonte, MG (Brazil)

    1995-12-31

    Radiological impacts under a conservative approach were assessed for the final deposition of {sup 137} Cs at the repository site of Abadia de Goias, in the State of Goias. This site was selected as the definitive storage location for the wastes generated in the radiological accident occurred in the definitive storage location for the wastes generated in the radiological accident occurred in the nearby city of Goiania, in September of 1987. The wastes are composed of various different materials, with an estimated radioactive inventory of about 1250 Ci of {sup 137} Cs, and will be deposited definitively in a repository box of concrete with a volume of 3900 m{sup 3} approximately. A conservative approach was considered in this study and the contaminated zone was simplified as an isotropic block of soil, of 3900 m{sup 3} of volume, containing 1250 Ci of {sup 137} Cs homogeneously distributed within the whole volume. Several potential exposure scenarios were considered for the assessment of the future radiological impacts predicted at the repository site, depending on the level of institutional control maintained at the site, its future use, the time spent at the site and the sources of food. A comparative analysis of the resulting radiological impacts from all these future potential scenarios was performed using a microcomputer program named RESRAD. The simulated results indicated that the external exposure to gamma radiation, directly from the contaminated soil, is the most significant exposure pathway. The maximum predicted annual dose was below 7 mrem. (author). 5 refs, 6 figs, 3 tabs.

  14. Radiological aspects of Gaucher disease

    Energy Technology Data Exchange (ETDEWEB)

    Katz, Robert; Booth, Tom; Hargunani, Rikin; Wylie, Peter; Holloway, Brian [Royal Free Hospital, Radiology Department, London (United Kingdom)

    2011-12-15

    Advances in imaging and the development of commercially available enzyme therapy have significantly altered the traditional radiology of Gaucher disease. The cost of treatment and need for monitoring response to therapy have magnified the importance of imaging. There are no recent comprehensive reviews of the radiology of this relatively common lysosomal storage disease. This article describes the modern imaging, techniques and radiological manifestations of Gaucher disease. (orig.)

  15. Renewal of radiological equipment.

    Science.gov (United States)

    2014-10-01

    In this century, medical imaging is at the heart of medical practice. Besides providing fast and accurate diagnosis, advances in radiology equipment offer new and previously non-existing options for treatment guidance with quite low morbidity, resulting in the improvement of health outcomes and quality of life for the patients. Although rapid technological development created new medical imaging modalities and methods, the same progress speed resulted in accelerated technical and functional obsolescence of the same medical imaging equipment, consequently creating a need for renewal. Older equipment has a high risk of failures and breakdowns, which might cause delays in diagnosis and treatment of the patient, and safety problems both for the patient and the medical staff. The European Society of Radiology is promoting the use of up-to-date equipment, especially in the context of the EuroSafe Imaging Campaign, as the use of up-to-date equipment will improve quality and safety in medical imaging. Every healthcare institution or authority should have a plan for medical imaging equipment upgrade or renewal. This plan should look forward a minimum of 5 years, with annual updates. Teaching points • Radiological equipment has a definite life cycle span, resulting in unavoidable breakdown and decrease or loss of image quality which renders equipment useless after a certain time period.• Equipment older than 10 years is no longer state-of-the art equipment and replacement is essential. Operating costs of older equipment will be high when compared with new equipment, and sometimes maintenance will be impossible if no spare parts are available.• Older equipment has a high risk of failure and breakdown, causing delays in diagnosis and treatment of the patient and safety problems both for the patient and the medical staff.• Every healthcare institution or authority should have a plan for medical imaging equipment upgrade or replacement. This plan should look forward a

  16. David Barker: the revolution that anticipates existence

    Directory of Open Access Journals (Sweden)

    Italo Farnetani

    2014-01-01

    Full Text Available David Barker is the man who “anticipated" the existence of babies by focusing attention on the importance of the fetus and what takes place during intrauterine life. Barker was one of the physicians who in the last decades brought about the greatest changes in medicine, changes so important as to represent a veritable revolution in medical thought. According to Barker's studies, the embryo obviously has a genetic complement coming from the mother and father, but from the very first stages of development it begins to undergo the influence of the outside environment, just as occurs for adults whose biological, psychological and pathological aspects are influenced by the environment to a not well-established percentage between genetic complement and epigenetics. Much of our future lives as adults is decided in our mothers' wombs. If Barker's discovery was revolutionary from the cultural standpoint, it was even more so from the strictly medical one. Barker's research method was rigid from the methodological standpoint, but innovative and speculative in its working hypotheses, with a humanistic slant. Barker's idea has another practical corollary: it is evident that the role of obstetricians, perinatologists and neonatologists is more and more relevant in medicine and future prevention. Unquestionably, besides the enormous merits of his clinical research, among the benefits that Barker has contributed there is that of having helped us to see things from new points of view. Not only is the neonate (and even more so the fetus not an adult of reduced proportions, but perhaps the neonate is the "father" of the adult person.

  17. Anticipated and experienced emotions in environmental risk perception

    Directory of Open Access Journals (Sweden)

    Gisela Bohm

    2008-01-01

    Full Text Available Affective forecasting with respect to two environmental risks (ozone depletion, air pollution was investigated by studying tourists who travelled to either Australia or Bangkok and were thus confronted with one of these risks. We measured anticipated outcome and anticipated emotions before the journey, actually experienced outcome and actually experienced emotions during the journey, and anticipated outcome and emotions concerning a future encounter with the same risk after the journey. Results indicate that tourists underestimate (air pollution or correctly predict (ozone depletion both the seriousness of the outcome and their emotional reactions. The relationship between actual outcome and actual emotions is stronger than that between anticipated outcome and anticipated emotions. Furthermore, tourists learn from their travel experience and adjust their anticipations concerning future encounters with the environmental risk. Findings suggest that the domain of environmental risks differs from personal outcomes with respect to the process of affective forecasting.

  18. Radiological evaluation of chondroblastoma

    Energy Technology Data Exchange (ETDEWEB)

    Hudson, T.M.; Hawkins, I.F. Jr.

    1981-04-01

    Eleven new and six recurrent chondroblastomas were studied with multiple radiological imaging methods (plain radiography, conventional tomography, computed tomography, radionuclide bone scanning, and angiography). When the plain radiographic appearance was typical, conventional tomography or computed tomography (CT) was helpful, but other studies were not. Periosteal reaction and angiographic hypervascularity were common and did not indicate cortical breakthrough. For large, aggressive, or atypical lesions, conventional tomography and CT were helpful in delineating anatomic extent, and angiography was of value in demonstrating major vessel displacement. Radionuclide bone scanning was not useful.

  19. Radiological Calibration and Standards Facility

    Data.gov (United States)

    Federal Laboratory Consortium — PNNL maintains a state-of-the-art Radiological Calibration and Standards Laboratory on the Hanford Site at Richland, Washington. Laboratory staff provide expertise...

  20. Strategic Expansion Models in Academic Radiology.

    Science.gov (United States)

    Natesan, Rajni; Yang, Wei T; Tannir, Habib; Parikh, Jay

    2016-03-01

    In response to economic pressures, academic institutions in the United States and their radiology practices, are expanding into the community to build a larger network, thereby driving growth and achieving economies of scale. These economies of scale are being achieved variously via brick-and-mortar construction, community practice acquisition, and partnership-based network expansion. We describe and compare these three expansion models within a 4-part framework of: (1) upfront investment; (2) profitability impact; (3) brand impact; and (4) risk of execution.

  1. Predictions of models for environmental radiological assessment

    Energy Technology Data Exchange (ETDEWEB)

    Peres, Sueli da Silva; Lauria, Dejanira da Costa, E-mail: suelip@ird.gov.br, E-mail: dejanira@irg.gov.br [Instituto de Radioprotecao e Dosimetria (IRD/CNEN-RJ), Servico de Avaliacao de Impacto Ambiental, Rio de Janeiro, RJ (Brazil); Mahler, Claudio Fernando [Coppe. Instituto Alberto Luiz Coimbra de Pos-Graduacao e Pesquisa de Engenharia, Universidade Federal do Rio de Janeiro (UFRJ) - Programa de Engenharia Civil, RJ (Brazil)

    2011-07-01

    In the field of environmental impact assessment, models are used for estimating source term, environmental dispersion and transfer of radionuclides, exposure pathway, radiation dose and the risk for human beings Although it is recognized that the specific information of local data are important to improve the quality of the dose assessment results, in fact obtaining it can be very difficult and expensive. Sources of uncertainties are numerous, among which we can cite: the subjectivity of modelers, exposure scenarios and pathways, used codes and general parameters. The various models available utilize different mathematical approaches with different complexities that can result in different predictions. Thus, for the same inputs different models can produce very different outputs. This paper presents briefly the main advances in the field of environmental radiological assessment that aim to improve the reliability of the models used in the assessment of environmental radiological impact. The intercomparison exercise of model supplied incompatible results for {sup 137}Cs and {sup 60}Co, enhancing the need for developing reference methodologies for environmental radiological assessment that allow to confront dose estimations in a common comparison base. The results of the intercomparison exercise are present briefly. (author)

  2. Radiology illustrated. Spine

    Energy Technology Data Exchange (ETDEWEB)

    Kang, Heung Sik; Lee, Joon Woo [Seoul National Univ. Bundang Hospital, Seongnam, Kyonggi-do (Korea, Republic of). Dept. of Radiology; Kwon, Jong Won [Samsung Medical Center, Seoul (Korea, Republic of). Dept. of Radiology

    2014-04-01

    Offers a practical approach to image interpretation for spinal disorders. Includes numerous high-quality radiographic images and schematic illustrations. Will serve as a self-learning book covering daily routine cases from the basic to the advanced. Radiology Illustrated: Spine is an up-to-date, superbly illustrated reference in the style of a teaching file that has been designed specifically to be of value in clinical practice. Common, critical, and rare but distinctive spinal disorders are described succinctly with the aid of images highlighting important features and informative schematic illustrations. The first part of the book, on common spinal disorders, is for radiology residents and other clinicians who are embarking on the interpretation of spinal images. A range of key disorders are then presented, including infectious spondylitis, cervical trauma, spinal cord disorders, spinal tumors, congenital disorders, uncommon degenerative disorders, inflammatory arthritides, and vascular malformations. The third part is devoted to rare but clinically significant spinal disorders with characteristic imaging features, and the book closes by presenting practical tips that will assist in the interpretation of confusing cases.

  3. Anticipating Public Acceptance: The Hydrogen Case

    NARCIS (Netherlands)

    Di Ruggero, O.

    2014-01-01

    Current energy related issues, such as climate change or the oil depletion, demand technological and societal change towards new ways of producing and using energy. One of the challenges coming with the development of these new solutions relates to the impact that these technologies will have on soc

  4. The radiological impact of phosphogypsum stockpile in Wiślinka (northern Poland) on the Martwa Wisła river water.

    Science.gov (United States)

    Olszewski, Grzegorz; Boryło, Alicja; Skwarzec, Bogdan

    The aim of this work was to determine the concentrations of uranium ((234)U, (235)U, (238)U), polonium ((210)Po) and lead ((210)Pb) radioisotopes in water samples and to explore the impact of the phosphogypsum stack on the Martwa Wisła waters. The (238)U, (210)Po and (210)Pb concentrations in analyzed water samples reached maximum values of 11.7 ± 0.3, 2.0 ± 0.1 and 3.2 ± 0.1 mBq L(-1) and activity ratios were maximally 1.18 ± 0.01 for (234)U/(238)U, 0.041 ± 0.018 for (235)U/(238)U and 0.69 ± 0.10 for (210)Po/(210)Pb. The obtained results suggest that this impact is rather insignificant and does not affect significantly the Martwa Wisła river.

  5. Radiological changes of adult sprue

    Energy Technology Data Exchange (ETDEWEB)

    Neutard, E.; Kluge, F.

    1981-08-01

    Radiological findings of 10 adult patients with sprue were compared with histology. Patients suffering from subtotal villous atrophy were showing distinct radiological changes. The most important finding of sprue is the dilatation of the small intestine. Further typical changes are segmentations and fragmentations as well as mucous hypertrophy and the sign of moulage. In a 57-year-old female patient who was suffering from sprue for 35 years, a carcinoma of the small bowl was found and was resected during laparatomy. Sprue is a premalignant disease; therefore radiological investigations are of special importance. Therapy by a diet without gluten can reduce the radiological changes to normal very bad changes rarely can be reduced totally. Radiological changes are not significant, but the diagnosis can be made in most cases by investigation with barium.

  6. Radiological Work Planning and Procedures

    CERN Document Server

    Kurtz, J E

    2000-01-01

    Each facility is tasked with maintaining personnel radiation exposure as low as reasonably achievable (ALARA). A continued effort is required to meet this goal by developing and implementing improvements to technical work documents (TWDs) and work performance. A review of selected TWDs from most facilities shows there is a need to incorporate more radiological control requirements into the TWD. The Radioactive Work Permit (RWP) provides a mechanism to place some of the requirements but does not provide all the information needed by the worker as he/she is accomplishing the steps of the TWD. Requiring the engineers, planners and procedure writers to put the radiological control requirements in the work steps would be very easy if all personnel had a strong background in radiological work planning and radiological controls. Unfortunately, many of these personnel do not have the background necessary to include these requirements without assistance by the Radiological Control organization at each facility. In add...

  7. Client Anticipations about Computer-Assisted Career Guidance System Outcomes.

    Science.gov (United States)

    Osborn, Debra S.; Peterson, Gary W.; Sampson, James P., Jr.; Reardon, Robert C.

    2003-01-01

    This study describes how 55 clients from a career center at a large, southeastern university anticipated using computer-assisted career guidance (CACG) systems to help in their career decision making and problem solving. Responses to a cued and a free response survey indicated that clients' most frequent anticipations included increased career…

  8. LINEAR ISOMETRIC NON-ANTICIPATIVE TRANSFORMATIONS OF WIENER PROCESS

    Institute of Scientific and Technical Information of China (English)

    2000-01-01

    The necessary and sufficient conditions are given so that a non-anticipative transformation in Hilbert space is isometric. In terms of second order Wiener process, these conditions assure that a non-anticipative transformation of Wiener process is a Wiener process, too.

  9. Radiology today. Volume 4

    Energy Technology Data Exchange (ETDEWEB)

    Heuck, F.H.W.; Donner, M.W.

    1987-01-01

    The book discusses the following contents: Advances in Cardiovascular Imaging: Digital Arteriography: Ongoing Developments. Magnetic Resonance Imaging of the Cardiovascular System. Comparison of Vascular CT and MRI. Characterization of Vascular Lesions by Ultrasound - Progress in Vascular Interventions: Laser Angioplasty: A Review. Fibrinolytic Therapy Combined with Clot Extraction. Drugs Useful in Angioplasty. Developments in Cardiovascular Imaging: Blood Flow Measurements with Digital Arteriography. Selection of Imaging Techniques for Venous Thromboembolic Disease. Clinical Usefulness of High-Verus Low-Osmolality Contrast Agents. Developments in Angiographic and Interventional Instrumentation. Progress in Cardiovascular Interventions. Inferior Vena Cava Filters: Types, Placement, and Efficiency. Transluminal Vascular Stenting and Grafting. Venography and Sclerotherapy of Varioceles in Children and Adolescents. A New Catheter System - Important Hip Problems: Radiologic and Pathologic Correlation and Hip Disease. Comparison of Imaging Modalities in Femoral Head Necrosis. Osteoartrosis and Arthritis (Synovitis) of the Hip. Hip Anthrography.

  10. Radiologic findings in neurofibromatosis

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Dai Young; Jeon, Seok Chol; Lee, Kwan Se; Yeon, Kyung Mo; Choo, Dong Woon [Seoul National University College of Medicine, Seoul (Korea, Republic of)

    1979-12-15

    Neurofibromatosis is an uncommon but certainly not a rare hereditary disorder, probably of neuralcrest origin, involving not only neuroectoderm and mesoderm but also endoderm and characterized by cafe au lait spots and cutaneous and subcutaneous tumors, with secondary mesodermal defects responsible for protean osseous abnormalities and various manifestations in other systems. This paper is a study of confirmed 143 cases of neurofibromatosis collected for past 8 years. In this analysis, special attention was given to the selected 37 cases which showed abnormal findings on radiological examinations. Overall male to female ratio was 1 : 1.3. The most frequent kind of abnormalities was vertebral kyphoscoliosis in 12 cases. Among the more pathognomonic but uncommon abnormalities to neurofibromatosis, we experienced each 2 cases of lambdoid defect, pseudoarthrosis and renovascular hypertension, and 1 cases of sphenoid bone absence.

  11. Radiology illustrated. Gastrointestinal tract

    Energy Technology Data Exchange (ETDEWEB)

    Choi, Byung Ihn (ed.) [Seoul National University Hospital (Korea, Republic of). Dept. of Radiology

    2015-02-01

    Radiology Illustrated: Gastrointestinal Tract is the second of two volumes designed to provide clear and practical guidance on the diagnostic imaging of abdominal diseases. The book presents approximately 300 cases with 1500 carefully selected and categorized illustrations of gastrointestinal tract diseases, along with key text messages and tables that will help the reader easily to recall the relevant images as an aid to differential diagnosis., Essential points are summarized at the end of each text message to facilitate rapid review and learning. Additionally, brief descriptions of each clinical problem are provided, followed by case studies of both common and uncommon pathologies that illustrate the roles of the different imaging modalities, including ultrasound, radiography, computed tomography, and magnetic resonance imaging.

  12. A new car-following model considering velocity anticipation

    Science.gov (United States)

    Tian, Jun-Fang; Jia, Bin; Li, Xin-Gang; Gao, Zi-You

    2010-01-01

    The full velocity difference model proposed by Jiang et al. [2001 Phys. Rev. E 64 017101] has been improved by introducing velocity anticipation. Velocity anticipation means the follower estimates the future velocity of the leader. The stability condition of the new model is obtained by using the linear stability theory. Theoretical results show that the stability region increases when we increase the anticipation time interval. The mKdV equation is derived to describe the kink-antikink soliton wave and obtain the coexisting stability line. The delay time of car motion and kinematic wave speed at jam density are obtained in this model. Numerical simulations exhibit that when we increase the anticipation time interval enough, the new model could avoid accidents under urgent braking cases. Also, the traffic jam could be suppressed by considering the anticipation velocity. All results demonstrate that this model is an improvement on the full velocity difference model.

  13. Optimal Radiologic Report

    Directory of Open Access Journals (Sweden)

    Esmaeel Shokrollahi

    2010-05-01

    Full Text Available The radiological report is the medical document that qualifies the radiologist as a clinician and as a specialist, because through it radiologists expresse their professionalism."nThere is nothing more debatable than the report and how it should be written. It is conditioned by many variables that derive from the wide variety of sensitivities and personal or local cultures. In addition, there has never been a specific school in which these rules are taught."nIn the assessment of each written material, two things are explained:"n1. Methodology of the writing process itself as an act"n2. Characters of the written material "nIn assessing the method of writing a radiological report, two dimensions are discussed: "n1. Hardware: including data gathering, their processing and preparing them to be seen, the me-thod of reporting, conditions of workspace, instru-ments and all the physical parts of the work."n2. Software: how someone watches the images, me-thodology of thought and logical reasoning, and ultimately, how pictures are transferred to understandable, meaningful and useful written material."nIn assessing the characters of the written material itself, we should note:"n1. The configuration includes the structure of the words and grammar, style of writing, order of things to come after each other. This is the carrier of the content. "n2. The content is the main reason of the writing which contains the whole meaning and all parts of what one wants his or her audience to get from the note.

  14. Patient dosimetry in diagnostic radiology

    Directory of Open Access Journals (Sweden)

    Ciraj-Bjelac Olivera F.

    2003-01-01

    Full Text Available The objective of this work is to assess patient organ doses, effective doses and entrance surface doses in conventional diagnostic radiology procedures for standard adult patient. The survey consists of measurements of doses delivered to 239 patients in nine types of X-ray examinations. Three types of data were collected: X-ray machine data, patient data, and output measurements. Entrance surface dose was assessed based on the survey data and subsequently, using conversion coefficients, the organ doses and effective doses were calculated. Values of the entrance surface dose and the effective dose were estimated to be 0.4 to 5.8 mGy and 0.03 to 3.00 mSv for different examinations. Derived doses were compared with recommended general diagnostic reference levels. The impact of examination parameters on dose values was discussed. Except for posterior-anterior chest examination, all estimated doses are lower than stated reference levels. Survey data are aimed at helping development of national quality control and radiation protection programmed for medical exposures.

  15. A Bayesian belief network of threat anticipation and terrorist motivations

    Science.gov (United States)

    Olama, Mohammed M.; Allgood, Glenn O.; Davenport, Kristen M.; Schryver, Jack C.

    2010-04-01

    Recent events highlight the need for efficient tools for anticipating the threat posed by terrorists, whether individual or groups. Antiterrorism includes fostering awareness of potential threats, deterring aggressors, developing security measures, planning for future events, halting an event in process, and ultimately mitigating and managing the consequences of an event. To analyze such components, one must understand various aspects of threat elements like physical assets and their economic and social impacts. To this aim, we developed a three-layer Bayesian belief network (BBN) model that takes into consideration the relative threat of an attack against a particular asset (physical layer) as well as the individual psychology and motivations that would induce a person to either act alone or join a terrorist group and commit terrorist acts (social and economic layers). After researching the many possible motivations to become a terrorist, the main factors are compiled and sorted into categories such as initial and personal indicators, exclusion factors, and predictive behaviors. Assessing such threats requires combining information from disparate data sources most of which involve uncertainties. BBN combines these data in a coherent, analytically defensible, and understandable manner. The developed BBN model takes into consideration the likelihood and consequence of a threat in order to draw inferences about the risk of a terrorist attack so that mitigation efforts can be optimally deployed. The model is constructed using a network engineering process that treats the probability distributions of all the BBN nodes within the broader context of the system development process.

  16. A Bayesian Belief Network of Threat Anticipation and Terrorist Motivations

    Energy Technology Data Exchange (ETDEWEB)

    Olama, Mohammed M [ORNL; Allgood, Glenn O [ORNL; Davenport, Kristen M [ORNL; Schryver, Jack C [ORNL

    2010-01-01

    Recent events highlight the need for efficient tools for anticipating the threat posed by terrorists, whether individual or groups. Antiterrorism includes fostering awareness of potential threats, deterring aggressors, developing security measures, planning for future events, halting an event in process, and ultimately mitigating and managing the consequences of an event. To analyze such components, one must understand various aspects of threat elements like physical assets and their economic and social impacts. To this aim, we developed a three-layer Bayesian belief network (BBN) model that takes into consideration the relative threat of an attack against a particular asset (physical layer) as well as the individual psychology and motivations that would induce a person to either act alone or join a terrorist group and commit terrorist acts (social and economic layers). After researching the many possible motivations to become a terrorist, the main factors are compiled and sorted into categories such as initial and personal indicators, exclusion factors, and predictive behaviors. Assessing such threats requires combining information from disparate data sources most of which involve uncertainties. BBN combines these data in a coherent, analytically defensible, and understandable manner. The developed BBN model takes into consideration the likelihood and consequence of a threat in order to draw inferences about the risk of a terrorist attack so that mitigation efforts can be optimally deployed. The model is constructed using a network engineering process that treats the probability distributions of all the BBN nodes within the broader context of the system development process.

  17. Moral Disengagement, Anticipated Social Outcomes and Adolescents' Alcohol Use: Parallel Latent Growth Curve Analyses.

    Science.gov (United States)

    Quinn, Catherine A; Bussey, Kay

    2015-10-01

    Moral disengagement is a social cognitive process that has been extensively applied to transgressive behaviors, including delinquency, aggression and illicit substance use. However, there has been limited research on moral disengagement as it relates to underage drinking. The current study aimed to examine moral disengagement contextualized to underage drinking and its longitudinal relationship to alcohol use. Moreover, the social context in which adolescent alcohol use typically occurs was also considered, with a specific emphasis on the social sanctions, or social outcomes, that adolescents anticipate receiving from friends for their alcohol use. Adolescents were assessed across three time-points, 8 months apart. The longitudinal sample consisted of 382 (46% female) underage drinkers (12-16 years at T1). Parallel latent growth curve analysis was used to examine the bi-directional influence of initial moral disengagement, anticipated social outcomes, and alcohol use on subsequent growth in moral disengagement, anticipated social outcomes and alcohol use. The interrelation of initial scores and growth curves was also assessed. The findings revealed that, in the binary parallel analyses, initial moral disengagement and anticipated social outcomes both significantly predicted changes in alcohol use across time. Moreover, initial anticipated social outcomes predicted changes in moral disengagement. These findings were not consistently found when all three process analyses were included in a single model. The results emphasize the impact of social context on moral disengagement and suggest that by targeting adolescents' propensity to justify or excuse their drinking, as well as the social outcomes adolescents anticipate for being drunk, it may be possible to reduce their underage drinking.

  18. Radiology employees' quality of work life.

    Science.gov (United States)

    Dargahi, Hussein; Changizi, Vahid; Jazayeri Gharabagh, Elaheh

    2012-01-01

    Quality of work Life (QWL) originates from interactions between employees' needs and relative organizational resources. QWL is aimed to improve and retain employees' satisfaction, productivity and effectiveness of all organizations. A cross-sectional descriptive study was conducted among 15 Tehran University of Medical Sciences. A Cross-Sectional, descriptive study was conducted among 15 Tehran University of Medical Sciences' Hospitals' Radiology Departments' Employees by QWL questionnaire. Respondents were asked to express their attitudes about a range of key factors as the most important issues impacting their QWL. The data was collected and analyzed by SPSS version 15 software. Most of the respondents indicated that they were unsatisfied and very unsatisfied with key factors of their QWL. Comparison of QWL key factors of TUMS radiology employees with the other countries indicated that most of the employees are unsatisfied with their poor QWL factors. We hope, the implications of these findings deliberate to improve QWL within each of TUMS hospitals radiology departments and also be relevant and value to policymakers of healthcare organizations in Iran.

  19. Anticipating Human Activities Using Object Affordances for Reactive Robotic Response.

    Science.gov (United States)

    Koppula, Hema S; Saxena, Ashutosh

    2016-01-01

    An important aspect of human perception is anticipation, which we use extensively in our day-to-day activities when interacting with other humans as well as with our surroundings. Anticipating which activities will a human do next (and how) can enable an assistive robot to plan ahead for reactive responses. Furthermore, anticipation can even improve the detection accuracy of past activities. The challenge, however, is two-fold: We need to capture the rich context for modeling the activities and object affordances, and we need to anticipate the distribution over a large space of future human activities. In this work, we represent each possible future using an anticipatory temporal conditional random field (ATCRF) that models the rich spatial-temporal relations through object affordances. We then consider each ATCRF as a particle and represent the distribution over the potential futures using a set of particles. In extensive evaluation on CAD-120 human activity RGB-D dataset, we first show that anticipation improves the state-of-the-art detection results. We then show that for new subjects (not seen in the training set), we obtain an activity anticipation accuracy (defined as whether one of top three predictions actually happened) of 84.1, 74.4 and 62.2 percent for an anticipation time of 1, 3 and 10 seconds respectively. Finally, we also show a robot using our algorithm for performing a few reactive responses.

  20. A magnetoencephalography study of visual processing of pain anticipation.

    Science.gov (United States)

    Machado, Andre G; Gopalakrishnan, Raghavan; Plow, Ela B; Burgess, Richard C; Mosher, John C

    2014-07-15

    Anticipating pain is important for avoiding injury; however, in chronic pain patients, anticipatory behavior can become maladaptive, leading to sensitization and limiting function. Knowledge of networks involved in pain anticipation and conditioning over time could help devise novel, better-targeted therapies. With the use of magnetoencephalography, we evaluated in 10 healthy subjects the neural processing of pain anticipation. Anticipatory cortical activity elicited by consecutive visual cues that signified imminent painful stimulus was compared with cues signifying nonpainful and no stimulus. We found that the neural processing of visually evoked pain anticipation involves the primary visual cortex along with cingulate and frontal regions. Visual cortex could quickly and independently encode and discriminate between visual cues associated with pain anticipation and no pain during preconscious phases following object presentation. When evaluating the effect of task repetition on participating cortical areas, we found that activity of prefrontal and cingulate regions was mostly prominent early on when subjects were still naive to a cue's contextual meaning. Visual cortical activity was significant throughout later phases. Although visual cortex may precisely and time efficiently decode cues anticipating pain or no pain, prefrontal areas establish the context associated with each cue. These findings have important implications toward processes involved in pain anticipation and maladaptive pain conditioning.

  1. Radiological aspects of rheumatoid arthritis

    Energy Technology Data Exchange (ETDEWEB)

    Schacherl, M.

    1985-09-23

    An introductory summary of the imaging-diagnosis will be given. The necessity of acquiring a catalogue of application to particular imaging methods is emphasized. Discussion of step by step diagnosis regarding rheumatologic questions is given on example of the hand. Technically insufficient radiographs and bad habits during diagnostic analysis are pointed out. Radiologic problems in differentiating arthritis/osteoarthrosis will be mentioned. The discussion of these points is followed by outlining the radiology of rheumatoid arthritis and the complexity of this disease. Introduction of a new stage classification. Finally twelve basic radiologic types of rheumatoid arthritis will be presented.

  2. Fertility and apparent genetic anticipation in Lynch syndrome.

    Science.gov (United States)

    Stupart, Douglas; Win, Aung Ko; Jenkins, Mark; Winship, Ingrid M; Goldberg, Paul; Ramesar, Rajkumar

    2014-09-01

    Genetic anticipation is the phenomenon in which age of onset of an inherited disorder decreases in successive generations. Inconsistent evidence suggests that this occurs in Lynch syndrome. A possible cause for apparent anticipation is fecundity bias, which occurs if the disease adversely affects fertility. The purpose of this study was to determine the effect of age of diagnosis of colorectal cancer (CRC) on lifetime fertility in Lynch syndrome, and whether this can falsely create the appearance of genetic anticipation. A computer model simulated age of diagnosis of CRC in hypothetical Lynch syndrome carriers and their offspring. The model assumed similar age distribution of CRC across generations (i.e. that there was no true anticipation). Age distribution of CRC diagnosis, and lifetime fertility rates (grouped by age of diagnosis of CRC) were determined from the Australasian Colorectal Cancer Family Registry (ACCFR). Apparent anticipation was calculated by comparing ages of diagnosis of CRC in affected parent-child pairs. A total of 1,088 patients with CRC were identified from the ACCFR. Total lifetime (cohort) fertility was related to age of diagnosis of CRC (correlation coefficient 0.13, P = 0.0001). In the simulation, apparent anticipation was 1.8 ± 0.54 years (P = 0.0044). Observed apparent anticipation in the ACCFR cohort was 4.8 ± 1.73 years (P = 0.0064). There was no difference in apparent anticipation between the simulate d and observed parent-child pairs (P = 0.89). The appearance of genetic anticipation in Lynch syndrome can be falsely created due to changes in fertility.

  3. Dynamic Analytical Capability to Better Understand and Anticipate Extremist Shifts Within Populations under Authoritarian Regimes.

    Energy Technology Data Exchange (ETDEWEB)

    Bernard, Michael Lewis [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

    2015-11-01

    The purpose of this work is to create a generalizable data- and theory-supported capability to better understand and anticipate (with quantifiable uncertainty): 1) how the dynamics of allegiance formations between various groups and society are impacted by active conflict and by third-party interventions and 2) how/why extremist allegiances co-evolve over time due to changing geopolitical, sociocultural, and military conditions.

  4. Role of affective attitudes and anticipated affective reactions in predicting health behaviors

    OpenAIRE

    Conner, M; McEachan, R; Taylor, N.; O'Hara, J; Lawton, R

    2015-01-01

    Objective: Two measures of affect-affective attitude (AA) and anticipated affective reaction (AAR)- have frequently been used individually, but rarely simultaneously, in correlational studies predicting health behaviors. This research assessed their individual and combined impact in predicting intention and action for a range of health behaviors, controlling for theory of planned behavior (TPB) variables. Method: Self-reported intentions and performance of health behaviors were the main outco...

  5. Evaluation of the atmospheric stability and it influence in the radiological environmental impact of the treatment plant and radioactive waste storage (PTDR); Evaluacion de la estabilidad atmosferica y su influencia en el impacto radiologico ambiental de la planta de tratamiento y almacenamiento de desechos radiactivos (PTDR)

    Energy Technology Data Exchange (ETDEWEB)

    Ramos V, E.O.; Cornejo D, N. [CPHR, Calle 20 No. 4113 e/41 y 47 Playa C.P. 11300, Ciudad Habana (Cuba)]. e-mail: odalys@cphr.edu.cu

    2006-07-01

    It is well-known that the meteorological variables as the atmospheric stability, influence in the atmospheric dispersion of radioactive pollutants, for that as regards radiological safety, it constitutes a demand the evaluation of their impact in the process before mentioned. The present work exposes the results of the study of the radiological impact of our PTDR that it allowed to know the influence of this meteorological parameter in the atmospheric dispersion of radioactive pollutants in its location. To such effects they were processed by means of the methodology of Pasquill - Gifford, data of time zone observations of this meteorological variable obtained in the proximities of the installation, being modeled the worst conditions in atmospheric liberation of their radionuclides inventory, valuing stops the 2 critical considered population groups the doses received by inhalation of polluted air and ingestion of water and polluted products, as well as, for external irradiation from the radioactive cloud and the floor. The obtained annual effective doses due to the modeling situation reach until a mSv, except for the Ra-226 that are lightly superior, implying a risk radiological acceptable chord to the international standard. To the above-mentioned a reduced probability of occurrence of events initiators of the evaluated accidental sequence is added. (Author)

  6. Cardiac radiology: centenary review.

    Science.gov (United States)

    de Roos, Albert; Higgins, Charles B

    2014-11-01

    During the past century, cardiac imaging technologies have revolutionized the diagnosis and treatment of acquired and congenital heart disease. Many important contributions to the field of cardiac imaging were initially reported in Radiology. The field developed from the early stages of cardiac imaging, including the use of coronary x-ray angiography and roentgen kymography, to nowadays the widely used echocardiographic, nuclear medicine, cardiac computed tomographic (CT), and magnetic resonance (MR) applications. It is surprising how many of these techniques were not recognized for their potential during their early inception. Some techniques were described in the literature but required many years to enter the clinical arena and presently continue to expand in terms of clinical application. The application of various CT and MR contrast agents for the diagnosis of myocardial ischemia is a case in point, as the utility of contrast agents continues to expand the noninvasive characterization of myocardium. The history of cardiac imaging has included a continuous process of advances in our understanding of the anatomy and physiology of the cardiovascular system, along with advances in imaging technology that continue to the present day.

  7. The Radiological Research Accelerator Facility

    Energy Technology Data Exchange (ETDEWEB)

    Hall, E.J.

    1992-05-01

    The Radiological Research Accelerator Facility (RARAF) is based on a 4-MV Van de Graaff accelerator, which is used to generate a variety of well-characterized radiation beams for research in radiobiology, radiological physics, and radiation chemistry. It is part of the Center for Radiological Research (CRR) -- formerly the Radiological Research Laboratory (RRL) -- of Columbia University, and its operation is supported as a National Facility by the US Department of Energy (DOE). As such, RARAF is available to all potential users on an equal basis, and scientists outside the CRR are encouraged to submit proposals for experiments at RARAF. The operation of the Van de Graaff is supported by the DOE, but the research projects themselves must be supported separately. Experiments performed from May 1991--April 1992 are described.

  8. The Radiological Research Accelerator Facility

    Energy Technology Data Exchange (ETDEWEB)

    Hall, E.J.; Marino, S.A.

    1993-05-01

    The Radiological Research Accelerator Facility (RARAF) is based on a 4-MV Van de Graaff accelerator, which is used to generate a variety of well-characterized radiation beams for research in radiobiology, radiological physics, and radiation chemistry. It is part of the Center for Radiological Research (CRR) - formerly the Radiological Research Laboratory of Columbia University, and its operation is supported as a National Facility by the US Department of Energy (DOE). As such, RARAF is available to all potential users on an equal basis and scientists outside the CRR are encouraged to submit proposals for experiments at RARAF. The operation of the Van de Graaff is supported by the DOE, but the research projects themselves must be supported separately. This report provides a listing and brief description of experiments performed at RARAF during the May 1, 1992 through April 30, 1993.

  9. Radiological Assistance Program (RAP) Regions

    Data.gov (United States)

    Department of Homeland Security — The U.S. Department of Energy (DOE) created the Radiological Assistance Program (RAP) in the 1950s to make DOE resources and expertise available to organizations...

  10. National Radiological Fixed Lab Data

    Data.gov (United States)

    U.S. Environmental Protection Agency — The National Radiological Fixed Laboratory Data Asset includes data produced in support of various clients such as other EPA offices, EPA Regional programs, DOE,...

  11. Development of Mobile Radiological Monitor

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    <正>Mobile radiological monitor is used to detect gamma rays and neutron for personal and vehicle. It can be installed on a microbus as a mobile monitoring system. One large plastic scintillation detector is

  12. Peer review in cardiothoracic radiology.

    Science.gov (United States)

    Kanne, Jeffrey P

    2014-09-01

    A variety of peer review methods can be used as part of quality assurance and quality improvement in cardiothoracic radiology. Traditionally, peer review in radiology is a retrospective process relying primarily on review of previously interpreted studies at the time of follow-up or additional imaging. However, peer review can be enhanced with other methods such as double reads, focused practice review, practice audit, and correlation with operative and pathologic findings. Furthermore, feedback from referring physicians can be extremely useful in improving the quality of a radiology practice. This article discusses peer review in radiology with a focus on cardiothoracic imaging. Types of peer review, advantages and shortcomings, and future challenges are addressed.

  13. Financial accounting for radiology executives.

    Science.gov (United States)

    Seidmann, Abraham; Mehta, Tushar

    2005-03-01

    The authors review the role of financial accounting information from the perspective of a radiology executive. They begin by introducing the role of pro forma statements. They discuss the fundamental concepts of accounting, including the matching principle and accrual accounting. The authors then explore the use of financial accounting information in making investment decisions in diagnostic medical imaging. The paper focuses on critically evaluating the benefits and limitations of financial accounting for decision making in a radiology practice.

  14. Radiological training for tritium facilities

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-12-01

    This program management guide describes a recommended implementation standard for core training as outlined in the DOE Radiological Control Manual (RCM). The standard is to assist those individuals, both within DOE and Managing and Operating contractors, identified as having responsibility for implementing the core training recommended by the RCM. This training may also be given to radiological workers using tritium to assist in meeting their job specific training requirements of 10 CFR 835.

  15. Radiological appearances of sinonasal abnormalities

    Energy Technology Data Exchange (ETDEWEB)

    El-Beltagi, A.H.; Sobeih, A.A.; Valvoda, M.; Dahniya, M.H.; Badr, S.S

    2002-08-01

    The aim of this pictorial review is to present a variety of abnormalities of the sinonasal cavities to emphasize the diversity of lesions occurring in this region. These include congenital, neoplastic and granulomatous disorders and some allergic and inflammatory lesions with uncommon radiological appearances, as well as expanding lesions of the facial bones or of dental origin with secondary involvement of the related sinus(es). El-Beltagi, A.H. et al. (2002). Clinical Radiology 57, 702-718.

  16. FDH radiological design review guidelines

    Energy Technology Data Exchange (ETDEWEB)

    Millsap, W.J.

    1998-09-29

    These guidelines discuss in more detail the radiological design review process used by the Project Hanford Management Contractors as described in HNF-PRO-1622, Radiological Design Review Process. They are intended to supplement the procedure by providing background information on the design review process and providing a ready source of information to design reviewers. The guidelines are not intended to contain all the information in the procedure, but at points, in order to maintain continuity, they contain some of the same information.

  17. Radiological Control Manual. Revision 0, January 1993

    Energy Technology Data Exchange (ETDEWEB)

    1993-04-01

    This manual has been prepared by Lawrence Berkeley Laboratory to provide guidance for site-specific additions, supplements, and clarifications to the DOE Radiological Control Manual. The guidance provided in this manual is based on the requirements given in Title 10 Code of Federal Regulations Part 835, Radiation Protection for Occupational Workers, DOE Order 5480.11, Radiation Protection for Occupational Workers, and the DOE Radiological Control Manual. The topics covered are (1) excellence in radiological control, (2) radiological standards, (3) conduct of radiological work, (4) radioactive materials, (5) radiological health support operations, (6) training and qualification, and (7) radiological records.

  18. 100 classic papers of interventional radiology: A citation analysis

    Institute of Scientific and Technical Information of China (English)

    Matthew; T; Crockett; Ronan; FJ; Browne; Peter; J; Mac; Mahon; Leo; Lawler

    2015-01-01

    AIM: To define the 100 citation classic papers of interventional radiology.METHODS: Using the database of Journal Citation Reports the 40 highest impact factor radiology journals were chosen. From these journals the 100 most cited interventional radiology papers were chosen and analysed.RESULTS: The top paper received 2497 citations and the 100 th paper 200 citations. The average number of citations was 320. Dates of publication ranged from 1953- 2005. Most papers originated in the United States(n = 67) followed by Italy(n = 20) and France(n = 10). Harvard University(n = 18) and Osped Civile(n = 11) were the most prolific institutions. Ten journals produced all of the top 100 papers with "Radiology" and "AJR" making up the majority. SN Goldberg and T Livraghi were the most prolific authors. Nearly two thirds of the papers(n = 61) were published after 1990.CONCLUSION: This analysis identifies many of the landmark interventional radiology papers and provides a fascinating insight into the changing discourse within the field. It also identifies topics, authors and institutions which have impacted greatly on the specialty.

  19. The radiological management of bomb blast injury.

    Science.gov (United States)

    Hare, S S; Goddard, I; Ward, P; Naraghi, A; Dick, E A

    2007-01-01

    A need to understand the nature and patterns of bomb blast injury, particularly in confined spaces, has come to the fore with the current worldwide threat from terrorism. The purpose of this review article is to familiarize the radiologist with the imaging they might expect to see in a mass casualty terrorist event, illustrated by examples from two of the main institutions receiving patients from the London Underground tube blasts of 7 July 2005. We present examples of injuries that are typical in blast victims, as well as highlighting some blast sequelae that might also be found in other causes of multiple trauma. This should enable the radiologist to seek out typical injuries, including those that may not be initially clinically apparent. Terror-related injuries are often more severe than those seen in other trauma cases, and multi-system trauma at distant anatomical sites should be anticipated. We highlight the value of using a standardized imaging protocol to find clinically undetected traumatic effects and include a discussion on management of multiple human and non-human flying fragments. This review also discusses the role of radiology in the management and planning for a mass casualty terrorist incident and the optimal deployment of radiographic services during such an event.

  20. Crater Morphologies on Pluto and Charon: Anticipating New Horizons

    Science.gov (United States)

    Schenk, P.; Bray, V. J.; McKinnon, W. B.; White, O. L.; Moore, J. M.

    2014-12-01

    Impact craters are among the few geologic features we have some confidence will be present in the Pluto/Charon system. Crater morphologies are important as tracers of thermal history (through the mechanism of viscous relaxation), and can be used to probe through icy crusts (in terms of excavating deeper layers as on Ganymede or penetrating through floating ice shells as on Europa). New Horizons will have the opportunity to examine crater morphologies on Pluto to resolutions Charon to ~250 meters over significant areas. Stereo-derived topography maps are anticipated over 20-35% of each body. The first task will be to place the observed craters (assuming they are not deeply eroded) into Solar System context. Crater morphology on icy satellites is controlled primarily by surface gravity. Charon has similar surface gravity to the icy Saturnian satellites and we expect craters on Charon to resemble those seen by Cassini, where the dominant landform will be prominent central peaks. Pluto surface gravity is midway between Ganymede and Rhea. Triton, with similar surface gravity and internal composition to Pluto, is of no help due to the paucity of resolved craters there. This opens the possibility of observing landforms seen on Ganymede, such as central dome craters, palimpsests and perhaps even a multiring basin or two, albeit at larger diameters than we would see on Ganymede. Several issues complicate our rosy picture. A key unresolved concern is that impact velocities in the Pluto system are only a few km/s, in the low end of the hypervelocity range. Numerical models imply possible differences during excavation, producing deeper simple craters than on the icy satellites. Impacts occurring at velocities well below the mean (topographic data sets is unclear. Any viscous relaxation (driven by internal or modest tidal heating) or mass wasting erosion (by volatile redistribution) will also work to reduce crater depths on Pluto in different ways, but cratering onto the likely

  1. DOE standard: Radiological control

    Energy Technology Data Exchange (ETDEWEB)

    1999-07-01

    The Department of Energy (DOE) has developed this Standard to assist line managers in meeting their responsibilities for implementing occupational radiological control programs. DOE has established regulatory requirements for occupational radiation protection in Title 10 of the Code of Federal Regulations, Part 835 (10 CFR 835), ``Occupational Radiation Protection``. Failure to comply with these requirements may lead to appropriate enforcement actions as authorized under the Price Anderson Act Amendments (PAAA). While this Standard does not establish requirements, it does restate, paraphrase, or cite many (but not all) of the requirements of 10 CFR 835 and related documents (e.g., occupational safety and health, hazardous materials transportation, and environmental protection standards). Because of the wide range of activities undertaken by DOE and the varying requirements affecting these activities, DOE does not believe that it would be practical or useful to identify and reproduce the entire range of health and safety requirements in this Standard and therefore has not done so. In all cases, DOE cautions the user to review any underlying regulatory and contractual requirements and the primary guidance documents in their original context to ensure that the site program is adequate to ensure continuing compliance with the applicable requirements. To assist its operating entities in achieving and maintaining compliance with the requirements of 10 CFR 835, DOE has established its primary regulatory guidance in the DOE G 441.1 series of Guides. This Standard supplements the DOE G 441.1 series of Guides and serves as a secondary source of guidance for achieving compliance with 10 CFR 835.

  2. A report on CERN's radiological impact

    CERN Multimedia

    Office fédérale de la santé publique de Suisse

    2007-01-01

    According to the Federal Office for Public Health, every person living in Switzerland receives an average dose of 3.68 millisieverts per year coming from both natural radioactivity (e.g. cosmic rays, radon, terrestrial radioactivity, internal exposure) and artificial radioactivity (e.g. medical procedures). CERN's activities are estimated to account for around 0.27% of this annual dose. Source: Rapport annuel radioactivité de l

  3. Anxiety, anticipation and contextual information: A test of attentional control theory.

    Science.gov (United States)

    Cocks, Adam J; Jackson, Robin C; Bishop, Daniel T; Williams, A Mark

    2016-09-01

    We tested the assumptions of Attentional Control Theory (ACT) by examining the impact of anxiety on anticipation using a dynamic, time-constrained task. Moreover, we examined the involvement of high- and low-level cognitive processes in anticipation and how their importance may interact with anxiety. Skilled and less-skilled tennis players anticipated the shots of opponents under low- and high-anxiety conditions. Participants viewed three types of video stimuli, each depicting different levels of contextual information. Performance effectiveness (response accuracy) and processing efficiency (response accuracy divided by corresponding mental effort) were measured. Skilled players recorded higher levels of response accuracy and processing efficiency compared to less-skilled counterparts. Processing efficiency significantly decreased under high- compared to low-anxiety conditions. No difference in response accuracy was observed. When reviewing directional errors, anxiety was most detrimental to performance in the condition conveying only contextual information, suggesting that anxiety may have a greater impact on high-level (top-down) cognitive processes, potentially due to a shift in attentional control. Our findings provide partial support for ACT; anxiety elicited greater decrements in processing efficiency than performance effectiveness, possibly due to predominance of the stimulus-driven attentional system.

  4. Differences in gaze anticipation for locomotion with and without vision

    Directory of Open Access Journals (Sweden)

    Colas Nils Authié

    2015-06-01

    Full Text Available Previous experimental studies have shown a spontaneous anticipation of locomotor trajectory by the head and gaze direction during human locomotion. This anticipatory behavior could serve several functions: an optimal selection of visual information, for instance through landmarks and optic flow, as well as trajectory planning and motor control. This would imply that anticipation remains in darkness but with different characteristics.We asked ten participants to walk along two predefined complex trajectories (limacon and figure eight without any cue on the trajectory to follow. Two visual conditions were used: (i in light and (ii in complete darkness with eyes open. The whole body kinematics were recorded by motion capture, along with the participant's right eye movements.We showed that in darkness and in light, horizontal gaze anticipates the orientation of the head which itself anticipates the trajectory direction. However, the horizontal angular anticipation decreases by a half in darkness for both gaze and head. In both visual conditions we observed an eye nystagmus with similar properties (frequency and amplitude. The main difference comes from the fact that in light, there is a shift of the orientations of the eye nystagmus and the head in the direction of the trajectory.These results suggest that a fundamental function of gaze is to represent self motion, stabilize the perception of space during locomotion, and to simulate the future trajectory, regardless of the vision condition.

  5. Big Data and the Future of Radiology Informatics.

    Science.gov (United States)

    Kansagra, Akash P; Yu, John-Paul J; Chatterjee, Arindam R; Lenchik, Leon; Chow, Daniel S; Prater, Adam B; Yeh, Jean; Doshi, Ankur M; Hawkins, C Matthew; Heilbrun, Marta E; Smith, Stacy E; Oselkin, Martin; Gupta, Pushpender; Ali, Sayed

    2016-01-01

    Rapid growth in the amount of data that is electronically recorded as part of routine clinical operations has generated great interest in the use of Big Data methodologies to address clinical and research questions. These methods can efficiently analyze and deliver insights from high-volume, high-variety, and high-growth rate datasets generated across the continuum of care, thereby forgoing the time, cost, and effort of more focused and controlled hypothesis-driven research. By virtue of an existing robust information technology infrastructure and years of archived digital data, radiology departments are particularly well positioned to take advantage of emerging Big Data techniques. In this review, we describe four areas in which Big Data is poised to have an immediate impact on radiology practice, research, and operations. In addition, we provide an overview of the Big Data adoption cycle and describe how academic radiology departments can promote Big Data development.

  6. Credentialing in radiology:Current practice and future challenges

    Institute of Scientific and Technical Information of China (English)

    Adam Youssef; Paul Mc Coubrie

    2016-01-01

    Radiology has changed significantly in recent years. The volume of work has increased dramatically as has its complexity. Future radiologists need an adequate training and expertise in conventional practice as well as new techniques. This comes at a time when other stakeholders outside of radiology are voicing their own concerns. The rightly justified increasing focus on patient safety has placed even more emphasis on the demonstration of competent practice by all health care professionals. Credentialing has been put forward as a way to ensure a doctor is competent in specific areas. Credentialing may be an alien concept to many radiology trainees but moves are afoot in the United Kingdom to bring it to the forefront of its postgraduate medical training. Credentialing began in 20 th century North America where it was linked to the process of privileging. It subsequently garnered a strong patient safety focus and has become a part of the international healthcare agenda. Not everyone agrees with credentialing, it has many criticisms including the risk of speciality "turf wars" and the stifling of medical excellence to name just a couple. Is credentialing in radiology here to stay or will it pass by quietly? This paper reviews the global credentialing movement and discusses how this may impact on future radiology training, using the United Kingdom as its case example.

  7. Radiology information management system, TOSRIM

    Energy Technology Data Exchange (ETDEWEB)

    Tani, Yuichiro; Uchiyama, Akira; Kimura, Hirohito (Toshiba Corp., Kawasaki, Kanagawa (Japan))

    1991-02-01

    This is a report on a new type of distributed computer system for radiology departments named 'TOSRIM' (Toshiba radiology information management system), which is designed to be installed between medical diagnosis equipment and a host computer system in a hospital. Recently, a new type of host computer system has been developed which enables doctors to order any of the hospital's entire activities using terminals. By connecting 'TOSRIM' to this type of host computer system, many of the activities of a radiology department can be carried out via terminals without the use of examination requirement forms. As well as being connected to medical diagnosis equipment, 'TOSRIM' can also be connected to a medical imaging system which stores and displays medical images. By means of these connections, doctors will be able to diagnose medical images using display terminals without the need for films. (author).

  8. Radiological control manual. Revision 1

    Energy Technology Data Exchange (ETDEWEB)

    Kloepping, R.

    1996-05-01

    This Lawrence Berkeley National Laboratory Radiological Control Manual (LBNL RCM) has been prepared to provide guidance for site-specific additions, supplements and interpretation of the DOE Radiological Control Manual. The guidance provided in this manual is one methodology to implement the requirements given in Title 10 Code of Federal Regulations Part 835 (10 CFR 835) and the DOE Radiological Control Manual. Information given in this manual is also intended to provide demonstration of compliance to specific requirements in 10 CFR 835. The LBNL RCM (Publication 3113) and LBNL Health and Safety Manual Publication-3000 form the technical basis for the LBNL RPP and will be revised as necessary to ensure that current requirements from Rules and Orders are represented. The LBNL RCM will form the standard for excellence in the implementation of the LBNL RPP.

  9. Radiological Weapons: How Great Is The Danger?

    Energy Technology Data Exchange (ETDEWEB)

    Moore, G M

    2003-06-01

    One of the underlying purposes of this paper is to provoke thinking about the interplay between the regulation of radioactive materials and the risk of their use in an radiological weapon (RW). Also considered in this paper are the types of RWs that a terrorist might use, the nature of the threat and danger posed by the various types of RWs, the essential elements that must be considered in responding to the terrorist use of an RW, and what steps may need to be taken a priori to minimize the consequences of the inevitable use of an RW. Because radiological dispersal devices (RDDs) have been the focus of so much recent concern and because RDDs are arguably the most likely of RWs to be used by a terrorist group, a major focus of this paper will be on RDDs. Radiological weapons are going to be used by some individual or group, if not this year then next year, or at some time in the foreseeable future. A policy of focusing resources solely on prevention of their use would leave any government open to significant economic disruption when the inevitable use occurs. Preplanning can limit the injuries, property damage, and economic losses that might result from the use of an RW. Moreover, a combination of efforts to prevent and to minimize the impact of RWs may significantly discourage potential users. The dangers from RWs can be dealt with while society continues to enjoy the benefits of nuclear technology that were promised under Atoms for Peace. However, some restructuring of our use of radioactive materials is necessary to ensure that the current and future uses of radioactive materials outweigh the potential disruption caused by misuse of the materials in RWs.

  10. Conformism moderates the relations between values, anticipated regret, and behavior.

    Science.gov (United States)

    Lönnqvist, Jan-Erik; Leikas, Sointu; Paunonen, Sampo; Nissinen, Vesa; Verkasalo, Markku

    2006-11-01

    The purpose of the present study was to evaluate the moderating effect of Conformism values on the relations between other values and behavior. The authors expected people low, but not high, in Conformism to behave in a manner that is consistent with their personal values related to self-transcendence versus self-enhancement. In Study 1 (N = 199), such values predicted actual altruistic behavior, as estimated by other-reports, but only if Conformism values were low. In Study 2 (N = 189), only people who considered Conformism values to be relatively unimportant showed expected connections between self-transcendence values and anticipated regret in hypothetical scenarios having negative consequences. The data are interpreted as supporting the view that (a) anticipated regret motivates value-consistent behavior, (b) self-transcendence values in particular are connected to altruistic behavior and to anticipated regret, but (c) conformity to social norms moderates these connections.

  11. Managing Generational Differences in Radiology.

    Science.gov (United States)

    Eastland, Robin; Clark, Kevin R

    2015-01-01

    Diversity can take many forms. One type of recent focus is generational differences and intergenerational issues. Much research exists regarding generational differences in the workplace and in healthcare as a whole. Very little has been done on generational differences within the field of radiology. An analysis of current research of generational differences within radiology, nursing, and healthcart in general was performed to identify current trends and establish similarities and discordance in available studies. An emphasis was placed on how generational differences influence education, teamwork, and patient care, along with what challenges and opportunities exist for managers, leaders, and organizations.

  12. Adaptive and Rational Anticipations in Risk Management Systems and Economy

    Science.gov (United States)

    Dubois, Daniel M.; Holmberg, Stig C.

    2010-11-01

    The global financial crisis of year 2009 is explained as a result of uncoordinated risk management decisions in business firms and economic organisations. The underlying reason for this can be found in the current financial system. As the financial market has lost much of its direct coupling to the concrete economy it provides misleading information to economic decision makers at all levels. Hence, the financial system has moved from a state of moderate and slow cyclical fluctuations into a state of fast and chaotic ones. Those misleading decisions can further be described, but not explained, by help of adaptive and rational expectations from macroeconomic theory. In this context, AE, the Adaptive Expectations are related to weak passive Exo-anticipation, and RE, the Rational expectations can be related to a strong, active and design oriented anticipation. The shortcomings of conventional cures, which builds on a reactive paradigm, have already been demonstrated in economic literature and are here further underlined by help of Ashby's "Law of Requisite Variety", Weaver's distinction between systems of "Disorganized Complexity" and those of "Organized Complexity", and Klir's "Reconstructability Analysis". Anticipatory decision-making is hence here proposed as a replacement to current expectation based and passive risk management. An anticipatory model of the business cycle is presented for supporting that proposition. The model, which is an extension of the Kaldor-Kalecki model, includes both retardation and anticipation. While cybernetics with the feedback process in control system deals with an explicit goal or purpose given to a system, the anticipatory system discussed here deals with a behaviour for which the future state of the system is built by the system itself, without explicit goal. A system with weak anticipation is based on a predictive model of the system, while a system with strong anticipation builds its own future by itself. Numerical simulations on

  13. [Radiological media and modern supporting tools in radiology].

    Science.gov (United States)

    Sachs, A; Pokieser, P

    2014-01-01

    Radiology is a field with a high demand on information. Nowadays, a huge variety of electronic media and tools exists in addition to the classical media. Asynchronous and synchronous e-learning are constantly growing and support radiology with case collections, webinars and online textbooks. Various internet resources, social media and online courses have been established. Dynamic websites show a variety of interactive elements and it is easier and faster to access large amounts of data. Social media have an exponentially growing number of users and enable an efficient collaboration as well as forming professional networks. Massive open online courses (MOOCs) complete the offer of education and increase the opportunity to take part in educational activities. Apart from the existing variety of resources it is essential to focus on a critical selection for using these radiological media. It is reasonable to combine classical and electronic media instead of a one-sided use. As dynamic as the progress in the field of radiological media and its tools may be, the personal contact remains and should be maintained.

  14. New scheme of anticipating synchronization for arbitrary anticipation time and its application to long-term prediction of chaotic states

    Institute of Scientific and Technical Information of China (English)

    Sun Zhong-Kui; Xu Wei; Yang Xiao-Li

    2007-01-01

    How to predict the dynamics of nonlinear chaotic systems is still a challenging subject with important real-life applications. The present paper deals with this important yet difficult problem via a new scheme of anticipating synchronization. A global, robust, analytical and delay-independent sufficient condition is obtained to guarantee the existence of anticipating synchronization manifold theoretically in the framework of the Krasovskii-Lyapunov theory.that the receiver system can synchronize with the future state of a transmitter system for an arbitrarily long anticipation time, which allows one to predict the dynamics of chaotic transmitter at any point of time if necessary. Also it is simple to implement in practice. A classical chaotic system is employed to demonstrate the application of the proposed scheme to the long-term prediction of chaotic states.

  15. How to Read Your Radiology Report

    Science.gov (United States)

    ... Site Index A-Z How to Read Your Radiology Report Imaging studies such as magnetic resonance imaging ( ... this article. top of page Sections of the Radiology Report Type of exam The type of exam ...

  16. Radiologic Technology Occupations. Curriculum Guide.

    Science.gov (United States)

    Reneau, Fred; And Others

    This guide delineates the tasks and performance standards for radiologic technology occupations. It includes job seeking skills, work attitudes, energy conservation practices, and safety. The guide is centered around the three domains of learning: psychomotor, cognitive, and affective. For each duty, the following are provided: task, standard of…

  17. International Data on Radiological Sources

    Energy Technology Data Exchange (ETDEWEB)

    Martha Finck; Margaret Goldberg

    2010-07-01

    ABSTRACT The mission of radiological dispersal device (RDD) nuclear forensics is to identify the provenance of nuclear and radiological materials used in RDDs and to aid law enforcement in tracking nuclear materials and routes. The application of databases to radiological forensics is to match RDD source material to a source model in the database, provide guidance regarding a possible second device, and aid the FBI by providing a short list of manufacturers and distributors, and ultimately to the last legal owner of the source. The Argonne/Idaho National Laboratory RDD attribution database is a powerful technical tool in radiological forensics. The database (1267 unique vendors) includes all sealed sources and a device registered in the U.S., is complemented by data from the IAEA Catalogue, and is supported by rigorous in-lab characterization of selected sealed sources regarding physical form, radiochemical composition, and age-dating profiles. Close working relationships with global partners in the commercial sealed sources industry provide invaluable technical information and expertise in the development of signature profiles. These profiles are critical to the down-selection of potential candidates in either pre- or post- event RDD attribution. The down-selection process includes a match between an interdicted (or detonated) source and a model in the database linked to one or more manufacturers and distributors.

  18. Linear stochastic differential equations with anticipating initial conditions

    DEFF Research Database (Denmark)

    Khalifa, Narjess; Kuo, Hui-Hsiung; Ouerdiane, Habib

    In this paper we use the new stochastic integral introduced by Ayed and Kuo (2008) and the results obtained by Kuo et al. (2012b) to find a solution to a drift-free linear stochastic differential equation with anticipating initial condition. Our solution is based on well-known results from...

  19. Patients' Anticipation of Stress in Nursing Home Care.

    Science.gov (United States)

    Stein, Shayna; And Others

    1985-01-01

    Examined anticipation of stresses in 223 patients recently admitted to nursing homes, who completed the stresses in Institutional Care Scale (SIC). Factor analysis revealed five factors significantly related to psychological and physical variables. Suggests using SIC for admission screening in nursing homes. Appendix contains the SIC. (NRB)

  20. Anticipated identification costs: Improving assortment evaluation by diagnostic attributes

    NARCIS (Netherlands)

    Herpen, van E.; Pieters, F.G.M.

    2007-01-01

    Abstract Consumers often make quick assessments of product assortments, to determine if these are worthwhile for further investigation. They anticipate how difficult it will be to distinguish the various options in the assortment, which will influence their assortment evaluations. We reason that the

  1. Probing the Neural Correlates of Anticipated Peer Evaluation in Adolescence

    Science.gov (United States)

    Guyer, Amanda E.; McClure-Tone, Erin B.; Shiffrin, Nina D.; Pine, Daniel S.; Nelson, Eric E.

    2009-01-01

    Neural correlates of social-cognition were assessed in 9- to- 17-year-olds (N = 34) using functional magnetic resonance imaging. Participants appraised how unfamiliar peers they had previously identified as being of high or low interest would evaluate them for an anticipated online chat session. Differential age- and sex-related activation…

  2. Anticipating change : sustainable water policy pathways for an uncertain future

    NARCIS (Netherlands)

    Haasnoot, M.

    2013-01-01

    Water management should preferably bring solutions that sustain even if conditions change. In anticipating change, a sustainable plan should not only achieve economic, environmental, and social targets, but it should also be robust to uncertainty and able to be adapted over time to (unforeseen) futu

  3. Person x Context Effects on Anticipated Moral Emotions Following Aggression

    Science.gov (United States)

    Roos, Sanna; Salmivalli, Christina; Hodges, Ernest V. E.

    2011-01-01

    We investigated person (sex, aggression level), context (witness type, victim reactions), and person x context effects on children's anticipated moral emotions following hypothetical acts of aggression against a peer. Children (N = 378, mean age = 11.3 years) were presented a series of hypothetical vignettes in which the presence of witnesses (no…

  4. Impact of ICRP 117 recommendations in the operational protection of vascular radiology unit; Impacto de las recomendaciones de ICRP 117 en la proteccion operacional de una unidad de radiologia vascular

    Energy Technology Data Exchange (ETDEWEB)

    Gomez, Pablo Luis; Fernandez, Manuel; Verde, Jose Maria; Perez, Maria Esperanza; Gomez, Nuria, E-mail: pablog11@eresmas.com [Hospital Universitario de Salamanca (Spain). Servicio de Radio fisica y Proteccion Radiologica

    2013-07-01

    This paper lists and discusses the results obtained in the teams of the different specialties: traumatology, gastroenterology, hemodynamics, vascular radiology and neurosurgery at different care centres with various care portfolios and notable differences of technical resources. The results show a noticeable difference between the equipment used in gastroenterology, vascular radiology and hemodynamic reference services with other services and disciplines. Taking into account the recent 117 of ICRP publication it has been initiated a procedure for the estimation of dose of foot and ankle of the vascular radiologists and in crystalline. This paper shows the results obtained as well as the correlations between the mentioned area dose and values of dose of lapel, wrist, ankles and crystalline of the professionals.

  5. 21 CFR 892.1980 - Radiologic table.

    Science.gov (United States)

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Radiologic table. 892.1980 Section 892.1980 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES RADIOLOGY DEVICES Diagnostic Devices § 892.1980 Radiologic table. (a) Identification. A...

  6. 10 CFR 835.501 - Radiological areas.

    Science.gov (United States)

    2010-01-01

    ... 10 Energy 4 2010-01-01 2010-01-01 false Radiological areas. 835.501 Section 835.501 Energy DEPARTMENT OF ENERGY OCCUPATIONAL RADIATION PROTECTION Entry Control Program § 835.501 Radiological areas. (a) Personnel entry control shall be maintained for each radiological area. (b) The degree of control shall...

  7. Mental fatigue negatively influences manual dexterity and anticipation timing but not repeated high-intensity exercise performance in trained adults.

    Science.gov (United States)

    Duncan, Michael J; Fowler, Nicholas; George, Oliver; Joyce, Samuel; Hankey, Joanne

    2015-01-01

    This study examined the impact of a period of mental fatigue on manual dexterity, anticipation timing and repeated high intensity exercise performance. Using a randomised, repeated measures experimental design, eight physically trained adults (mean age = 24.8 ± 4.1 years) undertook a 40 minute vigilance task to elicit mental fatigue or a control condition followed by four repeated Wingate anaerobic performance tests. Pre, post fatigue/control and post each Wingate test, manual dexterity (Seconds), coincidence anticipation (absolute error) were assessed. A series of two (condition) by six (time) ways repeated measures ANOVAs indicated a significant condition by time interactions for manual dexterity time (p = 0.021) and absolute error (p = 0.028). Manual dexterity and coincidence anticipation were significantly poorer post mental fatigue compared with control. There were no significant differences in mean power between conditions or across trials (all p > 0.05).

  8. Radiological research in Europe: a bibliometric study.

    Science.gov (United States)

    Mela, G S; Martinoli, C; Poggi, E; Derchi, L E

    2003-04-01

    We performed a bibliometric search to evaluate number and scientific "weight" of papers written by European radiologists, as compared with colleagues from other countries, to measure the contribution of European researchers to radiology journals, and to correlate bibliometric parameters with some socio-economic factors of the different European nations. We considered all peer-reviewed articles published by radiologists in biomedical journals quoted by ISI over the 1995-2000 period. To identify authors as radiologists, the string "radiol" had to appear in the address of the corresponding author, and his country was considered as the country of origin of the paper. The definition of Europe included the 15 countries of the European Union, plus Norway and Switzerland. The scientific "weight" of the paper was assumed to be the impact factor of the journal of the publication in that given year. Then, we considered the annual indexes number of papers/population and number of papers/Gross Domestic Product (GDP) in each country. Data were retrieved from the Eurostat annual statistic reviews. From these bases, we obtained a comparison of the scientific production among European radiologists, those from the U.S. and those from the rest of the world. European radiological research is responsible of almost 40% of the world scientific production in our field, and Germany, UK and France are the leading publishers in Europe. An increase of the number of papers written by European radiologists was noted in the 1995-2000 period, whereas the production from the U.S. had a slight decrease. The mean concentration indexes papers/inhabitants and papers/GDP were significantly lower in Europe than in the U.S., even if some small European countries had higher values than the U.S. As a mean, European research received a lower impact factor than that from the U.S. The assessment of research output has progressively developed as an important issue for the scientific research community

  9. Accelerator driven systems from the radiological safety point of view

    Indian Academy of Sciences (India)

    P K Sarkar; Maitreyee Nandy

    2007-02-01

    In the proposed accelerator driven systems (ADS) the possible use of several milliamperes of protons of about 1 GeV incident on high mass targets like the molten lead–bismuth eutectic is anticipated to pose radiological problems that have so far not been encountered by the radiation protection community. Spallation reaction products like high energy gammas, neutrons, muons, pions and several radiotoxic nuclides including Po-210 complicate the situation. In the present paper, we discuss radiation safety measures like bulk shielding, containment of radiation leakage through ducts and penetration and induced activity in the structure to protect radiation workers as well as estimation of sky-shine, soil and ground water activation, release of toxic gases to the environment to protect public as per the stipulations of the regulatory authorities. We recommend the application of the probabilistic safety analysis technique by assessing the probability and criticality of different hazard-initiating events using HAZOP and FMECA.

  10. Accelerator driven sytems from the radiological safety point of view

    Science.gov (United States)

    Sarkar, P. K.; Nandy, Maitreyee

    2007-02-01

    In the proposed accelerator driven systems (ADS) the possible use of several milliamperes of protons of about 1 GeV incident on high mass targets like the molten lead--bismuth eutectic is anticipated to pose radiological problems that have so far not been encountered by the radiation protection community. Spallation reaction products like high energy gammas, neutrons, muons, pions and several radiotoxic nuclides including Po-210 complicate the situation. In the present paper, we discuss radiation safety measures like bulk shielding, containment of radiation leakage through ducts and penetration and induced activity in the structure to protect radiation workers as well as estimation of sky-shine, soil and ground water activation, release of toxic gases to the environment to protect public as per the stipulations of the regulatory authorities. We recommend the application of the probabilistic safety analysis technique by assessing the probability and criticality of different hazard-initiating events using HAZOP and FMECA.

  11. Pediatric radiology for medical-technical radiology assistants/radiologists; Paediatrische Radiologie fuer MTRA/RT

    Energy Technology Data Exchange (ETDEWEB)

    Oppelt, Birgit

    2010-07-01

    The book on pediatric radiology includes the following chapter: differences between adults and children; psycho-social aspects concerning the patient child in radiology; relevant radiation doses in radiology; help for self-help: simple phantoms for image quality estimation in pediatric radiology; general information; immobilization of the patient; pediatric features for radiological settings; traumatology; contrast agents; biomedical radiography; computerized tomography; NMR imaging; diagnostic ultrasonography; handling of stress practical recommendations; medical displays.

  12. Motivation in a multigenerational radiologic science workplace.

    Science.gov (United States)

    Kalar, Traci

    2008-01-01

    For the first time in history, radiologic science (RS) workplaces consist of 4 generational cohorts. As each cohort possess their own attitudes, values, work habits, and expectations, motivating a generational diverse workplace is challenging. Through the understanding of generational differences, managers are better able to accommodate individual as well as generational needs and help create a more productive and higher performing workplace. The purpose of this paper is to assist managers in the understanding and utilization of generational differences to effectively motivate staff in an RS workplace. Generational cohorts will be defined and discussed along with an in-depth discussion on each of the generations performing in today's RS workplace. Motivators and how they impact the different generational cohorts will be addressed along with how to best motivate a multigenerational RS workplace.

  13. Geographic origin of publications in radiological journals as a function of GDP and percentage of GDP spent on research.

    LENUS (Irish Health Repository)

    Halpenny, Darragh

    2010-06-01

    The aim of this study was to examine the geographic origin of publications in the highest impacting radiology journals and to examine the link between the percentage of gross domestic product (GDP) spent on research by a country and the output of radiology publications.

  14. Research and development in radiological protection; Investigacion y desarrollo en proteccion radiologica

    Energy Technology Data Exchange (ETDEWEB)

    Butragueno, J. L.; Villota, C.; Gutierrez, C.; Rodriguez, A.

    2004-07-01

    The objective of Radiological Protection is to gurantee that neither people, be they workers or members of the public, or the environment are exposed to radiological risks considered by society to be unacceptable. Among the various resources available to meet this objective is Research and Development (R and D), which is carried out in three areas: I. Radiological protection of persons: (a) knowledge of the biological effects of radiations, in order to determine the relationship that exists between radiation exposure dose and its effects on health; (b) the development of new personal dosimetry techniques in order to adapt to new situations, instrumental techniques and information managmenet technologies allowing for better assessment of exposure dose; and (c) development of the principle of radiological protection optimisation (ALARA), which has been set up internationally as the fundamental principle on which radiological protection interventions are based. II. Assessment of environmental radiological impact, the objective of which is to assess the nature and magnitude of situations of exposure to ionising radiations as a result of the controlled or uncontrolled release of radioactive material to the environment, and III.Reduction of the radiological impact of radioactive wastes, the objective of which is to develop radioactive material and waste management techniques suitable for each situation, in order to reduce the risks assocaited with their definitive managmenet or thier release to the environment. Briefly desribed below are the strategic lines of R and D of the CSN, the Electricity Industry, Ciemat and Enresa in the aforementioned areas. (Author)

  15. Computational radiology for orthopaedic interventions

    CERN Document Server

    Li, Shuo

    2016-01-01

    This book provides a cohesive overview of the current technological advances in computational radiology, and their applications in orthopaedic interventions. Contributed by the leading researchers in the field, this volume covers not only basic computational radiology techniques such as statistical shape modeling, CT/MRI segmentation, augmented reality and micro-CT image processing, but also the applications of these techniques to various orthopaedic interventional tasks. Details about following important state-of-the-art development are featured: 3D preoperative planning and patient-specific instrumentation for surgical treatment of long-bone deformities, computer assisted diagnosis and planning of periacetabular osteotomy and femoroacetabular impingement, 2D-3D reconstruction-based planning of total hip arthroplasty, image fusion for  computer-assisted bone tumor surgery, intra-operative three-dimensional imaging in fracture treatment, augmented reality based orthopaedic interventions and education, medica...

  16. Radiologic findings of neonatal sepsis

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Sam Soo; Han, Dae Hee; Choi, Guk Myeong; Jung, Hye Won [Seoul National Univ. College of Medicine, Seoul (Korea, Republic of); Yoon, Hye Kyung; Han, Bokyung Kim; Lee, Nam Yong [Sansung Medical Center, Seoul (Korea, Republic of)

    1997-06-01

    To review the simple radiographic and sonographic findings in infants with neonatal sepsis. We retrospectively analyzed simple chest and abdominal radiographs, and brain sonograms in 36 newborn infants (preterm : term=23 :13). With neonatal sepsis diagnosed by blood culture and clinical manifestations. Pulmonary parenchymal infiltrate excluding respiratory distress syndrome and pulmonary edema or atelectasis was found in 22 infants (61%). Paralytic ileus, hepatosplenomegaly, and necrotizing enterocolitis were present in 18(50%), 9(25%), and 1(3%) infants, respectively, while skeletal changes suggesting osteomyelitis were found in three. Brain sonography was performed in 29 infants and in four, abnormalities were seen ; these comprised three germinal matrix hemorrhages and one intraparenchymal hemorrhage. In six patients(17%) radiologic examinations revealed no abnormality. In patients with neonatal sepsis, pulmonary infiltrates and paralytic ileus were common abnormalities. Although these were nonspecific, radiologic findings may be used to supplement clinical and laboratory findings in diagnosing neonatal sepsis and planning its treatment.

  17. Radiology of the resurfaced hip

    Energy Technology Data Exchange (ETDEWEB)

    Rahman, Luthfur [The London Hip Unit, London (United Kingdom); Hall-Craggs, Margaret [University College London Hospital, London (United Kingdom); Muirhead-Allwood, Sarah K. [The London Hip Unit, London (United Kingdom); The Royal National Orthopaedic Hospital, Middlesex (United Kingdom)

    2011-07-15

    Hip resurfacing arthroplasty is an increasingly common procedure for osteoarthritis. Conventional radiographs are used routinely for follow-up assessment, however they only provide limited information on the radiological outcome. Various complications have been reported in the scientific literature although not all are fully understood. In an effort to investigate problematic or failing hip resurfacings, various radiological methods have been utilized. These methods can be used to help make a diagnosis and guide management. This paper aims to review and illustrate the radiographic findings in the form of radiography, computerized tomography (CT), magnetic resonance imaging (MRI), and ultrasound of both normal and abnormal findings in hip resurfacing arthroplasty. However, imaging around a metal prosthesis with CT and MRI is particularly challenging and therefore the potential techniques used to overcome this are discussed. (orig.)

  18. Neural basis of reward anticipation and its genetic determinants.

    Science.gov (United States)

    Jia, Tianye; Macare, Christine; Desrivières, Sylvane; Gonzalez, Dante A; Tao, Chenyang; Ji, Xiaoxi; Ruggeri, Barbara; Nees, Frauke; Banaschewski, Tobias; Barker, Gareth J; Bokde, Arun L W; Bromberg, Uli; Büchel, Christian; Conrod, Patricia J; Dove, Rachel; Frouin, Vincent; Gallinat, Jürgen; Garavan, Hugh; Gowland, Penny A; Heinz, Andreas; Ittermann, Bernd; Lathrop, Mark; Lemaitre, Hervé; Martinot, Jean-Luc; Paus, Tomáš; Pausova, Zdenka; Poline, Jean-Baptiste; Rietschel, Marcella; Robbins, Trevor; Smolka, Michael N; Müller, Christian P; Feng, Jianfeng; Rothenfluh, Adrian; Flor, Herta; Schumann, Gunter

    2016-04-05

    Dysfunctional reward processing is implicated in various mental disorders, including attention deficit hyperactivity disorder (ADHD) and addictions. Such impairments might involve different components of the reward process, including brain activity during reward anticipation. We examined brain nodes engaged by reward anticipation in 1,544 adolescents and identified a network containing a core striatal node and cortical nodes facilitating outcome prediction and response preparation. Distinct nodes and functional connections were preferentially associated with either adolescent hyperactivity or alcohol consumption, thus conveying specificity of reward processing to clinically relevant behavior. We observed associations between the striatal node, hyperactivity, and the vacuolar protein sorting-associated protein 4A (VPS4A) gene in humans, and the causal role of Vps4 for hyperactivity was validated in Drosophila Our data provide a neurobehavioral model explaining the heterogeneity of reward-related behaviors and generate a hypothesis accounting for their enduring nature.

  19. The role of anticipated regret in escalation of commitment.

    Science.gov (United States)

    Wong, Kin Fai Ellick; Kwong, Jessica Y Y

    2007-03-01

    This research tests the general proposition that people are motivated to reduce future regret under escalation situations. This is supported by the findings that (a) escalation of commitment is stronger when the possibility of future regret about withdrawal is high than when this possibility is low (Studies 1a and 1b) and (b) escalation of commitment increases as the net anticipated regret about withdrawal increases (Studies 2a and 2b). Furthermore, the regret effects in the 4 studies were above and beyond the personal responsibility effects on escalation. This research indicates that people in escalation situations are simultaneously influenced by the emotions they expect to experience in the future (e.g., anticipated regret) and by events that have happened in the past (e.g., responsibility for the initiating previous decision).

  20. Otologic radiology with clinical correlations

    Energy Technology Data Exchange (ETDEWEB)

    Ruenes, R.; De la Cruz, A.

    1986-01-01

    This manual covers developments in the radiologic diagnosis of otologic problems. To demonstrate the appearance of each disorder comprehensively, a large number of radiographs are included, many of them annotated to highlight both diagnostic signs and the subtle aspects of normal pathologic anatomy. Contents: X-ray and Imaging Techniques and Anatomy. Congenital Malformations. Middle and External Ear Infections. Otosclerosis and Otospongiosis. Temporal Bone Fractures. The Facial Nerve. Tumors of the Temporal Bone and Skull Base. Tumors of the Cerebellopontine Angle. Cochlear Implants.

  1. Benign chondroblastoma - malignant radiological appearances

    Energy Technology Data Exchange (ETDEWEB)

    Schulze, K.; Treugut, H.; Mueller, G.E.

    1980-04-01

    The very rare benign chondroblastoma occasionally invades soft tissues and may grow beyond the epiphysis into the metaphysis. In the present case such a tumour did not show the typical radiological appearances, but presented malignant features both on plain films and on the angiogram. The importance of biopsy of tumours which cannot be identified with certainty must be stressed before radical surgery is carried out.

  2. Frontiers in European radiology 9

    Energy Technology Data Exchange (ETDEWEB)

    Baert, A.L. (ed.) (Leuven Univ. (Belgium)); Heuck, F.H.W. (ed.) (Katharinenhospital, Stuttgart (Germany))

    1993-01-01

    The twelve chapters of the book - which were not prepared for separate retrieval from the database - deal with recent enhancements in equipment or technique, or novel applications, of existing diagnostic medical radiology methods such as magnetic resonance angiography, magnetic resonance spectroscopy, magnetic resonance imaging, Doppler sonography, digital subtraction angiography, and non-invasive thermometry. Possible side effects of the methods covered are also discussed, as e.g. nephropathy induced by contrast media, or artifacts involved in MRI. (UWA). 182 figs., 26 tabs.

  3. ANTICIPATING WPS PIN VULNERABILITY TO SECURE WIRELESS NETWORK

    Directory of Open Access Journals (Sweden)

    Indra Dwi Rianto

    2013-11-01

    Full Text Available WiFi Protected Setup (WPS is a standardized function supported by numerous vendors of wireless routers and access point to help set up connection to a wireless local area network. It is designed to simplify the set up and generally enabled by default. Due to design flaw, the WPS or QSS PIN is susceptible to a brute force attack. In this paper, we test the security vulnerability occurred, evaluate the performance and give recommendations to anticipate the attack.

  4. Understanding Mechanisms of Radiological Contamination

    Energy Technology Data Exchange (ETDEWEB)

    Rick Demmer; John Drake; Ryan James, PhD

    2014-03-01

    Over the last 50 years, the study of radiological contamination and decontamination has expanded significantly. This paper addresses the mechanisms of radiological contamination that have been reported and then discusses which methods have recently been used during performance testing of several different decontamination technologies. About twenty years ago the Idaho Nuclear Technology Engineering Center (INTEC) at the INL began a search for decontamination processes which could minimize secondary waste. In order to test the effectiveness of these decontamination technologies, a new simulated contamination, termed SIMCON, was developed. SIMCON was designed to replicate the types of contamination found on stainless steel, spent fuel processing equipment. Ten years later, the INL began research into methods for simulating urban contamination resulting from a radiological dispersal device (RDD). This work was sponsored by the Defense Advanced Research Projects Agency (DARPA) and included the initial development an aqueous application of contaminant to substrate. Since 2007, research sponsored by the US Environmental Protection Agency (EPA) has advanced that effort and led to the development of a contamination method that simulates particulate fallout from an Improvised Nuclear Device (IND). The IND method diverges from previous efforts to create tenacious contamination by simulating a reproducible “loose” contamination. Examining these different types of contamination (and subsequent decontamination processes), which have included several different radionuclides and substrates, sheds light on contamination processes that occur throughout the nuclear industry and in the urban environment.

  5. Telemetry of Aerial Radiological Measurements

    Energy Technology Data Exchange (ETDEWEB)

    H. W. Clark, Jr.

    2002-10-01

    Telemetry has been added to National Nuclear Security Administration's (NNSA's) Aerial Measuring System (AMS) Incident Response aircraft to accelerate availability of aerial radiological mapping data. Rapid aerial radiological mapping is promptly performed by AMS Incident Response aircraft in the event of a major radiological dispersal. The AMS airplane flies the entire potentially affected area, plus a generous margin, to provide a quick look at the extent and severity of the event. The primary result of the AMS Incident Response over flight is a map of estimated exposure rate on the ground along the flight path. Formerly, it was necessary to wait for the airplane to land before the map could be seen. Now, while the flight is still in progress, data are relayed via satellite directly from the aircraft to an operations center, where they are displayed and disseminated. This permits more timely utilization of results by decision makers and redirection of the mission to optimize its value. The current telemetry capability can cover all of North America. Extension to a global capability is under consideration.

  6. Quality management systems in radiology

    Directory of Open Access Journals (Sweden)

    Geoffrey K. Korir

    2013-08-01

    Full Text Available Background: The use of X-ray imaging is ever increasing in proportion to the need for radiological services and technological capabilities. Quality management that includes patient radiation dose monitoring is fundamental to safety and quality improvement of radiological services.Objective: To assess the level of quality management systems in X-ray medical facilities in Kenya.Methods: Quality management inspection, quality control performance tests and patient radiation exposure were assessed in 54 representative X-ray medical facilities. Additionally, a survey of X-ray examination frequency was conducted in 140 hospitals across the country.Results: The overall findings placed the country’s X-ray imaging quality management systems at 61±3% out of a possible 100%. The most and the least quality assurance performance indicators were general radiography X-ray equipment quality control tests at 88±4%, and the interventional cardiology adult examinations below diagnostic reference level at 25±1%, respectively.Conclusions: The study used a systematic evidence-based approach for the assessment of national quality management systems in radiological practice in clinical application, technical conduct of the procedure, image quality criteria, and patient characteristics as part of the quality management programme.

  7. Radiologic evaluation of os odontoideum

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Eun Ju; Chung, Tae Sub; Suh, Jung Ho; Kim, Dong Ik; Kim, Yong Soo; Park, Hyoung Chun; Oh, Soung Hoon [Yonsei University College of Medicine, Seoul (Korea, Republic of)

    1988-10-15

    We took an analysis on the clinical and radiologic findings of os odontoideum, which had been regarded as relatively uncommon disease, on 5 patients whom we have recently experienced. Our results were as follows: 1. Os odontoideums were incidentally discovered during the radiologic evaluation of traumatised 4 cases, who had been well being. Another one case of os odontoideum was associated with multiple epiphyseal dysplasia. 2. General radiologic findings of os odontoideum were a round or oval and hypoplastic ossicle separated from the base of odontoid process by wise gap. 3. Alanto-Axial instability was developed in 5 cases of os odontoideum by flexion and extension stress view of lateral cervical spine. 4. Flexion views of lateral cervical spine showed narrowing of anteroposterior diameter of spinal canal which were available at atlantoaxial level on 5 cases of os odontoidum. 5. CT myelogram and cervical myelogram showed anteriorly compressed dural sac and deformed spinal cord by body of axis at the atlanto-axial level.

  8. Neural response to reward anticipation is modulated by Gray's impulsivity.

    Science.gov (United States)

    Hahn, Tim; Dresler, Thomas; Ehlis, Ann-Christine; Plichta, Michael M; Heinzel, Sebastian; Polak, Thomas; Lesch, Klaus-Peter; Breuer, Felix; Jakob, Peter M; Fallgatter, Andreas J

    2009-07-15

    According to the Reinforcement Sensitivity Theory (RST), Gray's dimension of impulsivity, reflecting human trait reward sensitivity, determines the extent to which stimuli activate the Behavioural Approach System (BAS). The potential neural underpinnings of the BAS, however, remain poorly understood. In the present study, we examined the association between Gray's impulsivity as defined by the RST and event-related fMRI BOLD-response to anticipation of reward in twenty healthy human subjects in brain regions previously associated with reward processing. Anticipation of reward during a Monetary Incentive Delay Task elicited activation in key components of the human reward circuitry such as the ventral striatum, the amygdala and the orbitofrontal cortex. Interindividual differences in Gray's impulsivity accounted for a significant amount of variance of the reward-related BOLD-response in the ventral striatum and the orbitofrontal cortex. Specifically, higher trait reward sensitivity was associated with increased activation in response to cues indicating potential reward. Extending previous evidence, here we show that variance in functional brain activation during anticipation of reward is attributed to interindividual differences regarding Gray's dimension of impulsivity. Thus, trait reward sensitivity contributes to the modulation of responsiveness in major components of the human reward system which thereby display a core property of the BAS. Generally, fostering our understanding of the neural underpinnings of the association of reward-related interindividual differences in affective traits might aid researchers in quest for custom-tailored treatments of psychiatric disorders, further disentangling the complex relationship between personality traits, emotion, and health.

  9. Health, Anticipated Partner Infidelity, and Jealousy in Men and Women

    Directory of Open Access Journals (Sweden)

    Steven Arnocky

    2015-07-01

    Full Text Available Health has been identified as an important variable involved in mate choice. Unhealthy organisms are generally less able to provide reproductively important resources to partners and offspring and are more likely to pass on communicable disease. Research on human mate preferences has shown that both men and women prefer healthy mates. Yet to date, little research has examined how health relates to one’s own mating experiences. In the present study, 164 participants (87 women who were currently in heterosexual romantic relationships completed measures of frequency and severity of health problems, anticipated partner infidelity, and intensity of jealousy felt in their current relationship. Mediation analyses showed that health problems predicted greater anticipated partner infidelity and jealousy scores and that anticipated partner infidelity mediated the links between health and jealousy for both frequency and severity of health problems, controlling for both sex and relationship duration. These findings suggest that unhealthy people perceive themselves to be at a mating disadvantage, experiencing associated differences in perceptions and emotions surrounding their romantic partners’ fidelity.

  10. Apparent anticipation in SOD1 familial amyotrophic lateral sclerosis.

    Science.gov (United States)

    Vucic, Steve; Nicholson, Garth A; Chio, Adriano; Kiernan, Matthew C

    2013-09-01

    Although anticipation has been previously reported in the copper/zinc superoxide dismutase-1 (SOD1) associated familial amyotrophic lateral sclerosis (FALS), some have argued that this may represent ascertainment bias. Consequently, the aim of the present study was to determine whether anticipation was a feature in SOD1 FALS. From a cohort of 112 individuals, the clinical and genetic history of 34 SOD1 patients was assessed. Clinical history was collected with the age of death and disease duration determined in successive generations (generation 1, grandparent; generation 2, parents; generation 3, children), from five large SOD1 families. Results showed that the age of death was significantly less in generation 3 (40.1 ± 2.8 years) compared to generation 2 (46.2 ± 2.0 years, p < 0.05) and generation 1 (56.7 ± 4.5 years, p < 0.01). Furthermore, disease duration was longer in generation 1 (18.4 ± 3.7 months) compared to the disease duration in generation 2 (12.6 ± 2.6 months) and generation 3 (12.3 ± 1.9 months, p = 0.08). Positive intergenerational differences were evident in 92% of parent-offspring transmissions in the present SOD1 FALS cohort (c(2) = 70.6, p < 0.001). In conclusion, the present study supports anticipation as a phenomenon in FALS, possibly due to co-inheritance of modifier genes.

  11. 预期更新技术出现时新技术采用中经营成本对投资策略的影响%IMPACT OF OPERATING COSTS ON INVESTMENT STRATEGIES IN NEW TECHNOLOGY ADOPTION WITH A FURTHER NEW TECHNOLOGY ANTICIPATED

    Institute of Scientific and Technical Information of China (English)

    殷宝健; 胡适耕; 雷冬霞

    2006-01-01

    The adoption of new technologies often represents acrucial component of firms' investment decisions.This paper studies a dynamic duopoly model in which two firms compete in adoption of current technology with afurther new technology anticipated.Here it is assumed that the operating costs are not zero which has more explanatory power of the real world.There exist three kinds of equilibria that may occur in adoption of current technology,which mainly depends on the level of operating costs and the first-move advantage.It shows that the faster technological substitution or innovation encourages the leader to invest earlier while induces the follower to invest later.Furthermore,like the investment costs,with the increase of operating costs the follower tends to invest later while the leader tends to invest earlier,the investment thresholds are more sensitive to the change of operating costs than that of investment costs.

  12. Research Challenges and Opportunities for Clinically Oriented Academic Radiology Departments.

    Science.gov (United States)

    Decker, Summer J; Grajo, Joseph R; Hazelton, Todd R; Hoang, Kimberly N; McDonald, Jennifer S; Otero, Hansel J; Patel, Midhir J; Prober, Allen S; Retrouvey, Michele; Rosenkrantz, Andrew B; Roth, Christopher G; Ward, Robert J

    2016-01-01

    Between 2004 and 2012, US funding for the biomedical sciences decreased to historic lows. Health-related research was crippled by receiving only 1/20th of overall federal scientific funding. Despite the current funding climate, there is increased pressure on academic radiology programs to establish productive research programs. Whereas larger programs have resources that can be utilized at their institutions, small to medium-sized programs often struggle with lack of infrastructure and support. To address these concerns, the Association of University Radiologists' Radiology Research Alliance developed a task force to explore any untapped research productivity potential in these smaller radiology departments. We conducted an online survey of faculty at smaller clinically funded programs and found that while they were interested in doing research and felt it was important to the success of the field, barriers such as lack of resources and time were proving difficult to overcome. One potential solution proposed by this task force is a collaborative structured research model in which multiple participants from multiple institutions come together in well-defined roles that allow for an equitable distribution of research tasks and pooling of resources and expertise. Under this model, smaller programs will have an opportunity to share their unique perspective on how to address research topics and make a measureable impact on the field of radiology as a whole. Through a health services focus, projects are more likely to succeed in the context of limited funding and infrastructure while simultaneously providing value to the field.

  13. The Empowerment Strategy for The Food Crop Farmers in Anticipating The Climate Change

    Directory of Open Access Journals (Sweden)

    Efriyani Sumastuti

    2015-12-01

    Full Text Available In Indonesia, the climate change and the global warming like changes in the pattern and distribution of the rainfall give impacts on agricultural production at large, especially in the food crops. These also cause droughts, floods, landslides, forest fires, rising temperatures in urban areas, and rising sea levels. The above impacts are felt by the farmers because those can lead to a decrease in production even the crop failure. This research aims to develop an empowerment strategy of the food crop farmers in anticipating the climate change in Central Java. The data used is the primary data obtained through in-depth interviews with key-person and the Focus Group Discussion (FGD. The Analysis Hierarchy Process (AHP is conducted to determine the program priorities and strate gies. The result of research shows that anticipating the climate change should be synergistically conducted in four aspects: human resources, technology, institutional and production, by involving various groups in the society. Various groups can be grouped into academics, businessmen / private sectors, government and community of food crop farmers / society.

  14. Nucleating emergency radiology specialization in India.

    Science.gov (United States)

    Agrawal, Anjali; Khandelwal, Niranjan

    2016-04-01

    Emergency radiology is being recognized as an important and distinct specialty of radiology which merits utmost attention of educators, radiology program curricula committees, and radiology practices in India. Providing an accurate but timely diagnosis requires a skilled judgement and a strong process framework, particularly in acute trauma setting or a life-threatening acute illness. However, due to a shortage of radiologists in India and lack of awareness and suitable opportunities, there has been no concerted movement towards emergency radiology subspecialty training or dedicated emergency radiology positions. It was with these gaps in mind that the Society for Emergency Radiology was envisioned in 2012 and formulated in 2013. The proposed role of the Society for Emergency Radiology is to identify deficiencies in the field, namely, lack of adequate exposure, lack of mentorship by experienced emergency radiologists, lack of suitable opportunities for emergency radiologists; establish standards of practice; and promote education and implementation research to bridge the gaps. Through collaboration with other societies and partnership with the journal Emergency Radiology, the Society for Emergency Radiology hopes to promote a free exchange of ideas, protocols, and multi-institutional trials across continents.

  15. [European curriculum for further education in radiology].

    Science.gov (United States)

    Ertl-Wagner, B

    2014-11-01

    The European training curriculum for radiology of the European Society of Radiology (ESR) aims to harmonize training in radiology in Europe. Levels I and II constitute the centerpiece of the curriculum. The ESR recommends a 5-year training period in radiology with 3 years of level I and 2 years of level II training. The undergraduate (U) level curriculum is conceived as a basis for teaching radiology in medical schools and consists of a modality-oriented U1 level and an organ-based U2 level. Level III curricula provide contents for subspecialty and fellowship training after board certification in radiology. The curricular contents of all parts of the European Training Curriculum are divided into the sections knowledge, skills as well as competences and attitudes. The European training curriculum is meant to be a recommendation and a basis for the development of national curricula, but is not meant to replace existing national regulations.

  16. [Interventional radiology: current problems and new directions].

    Science.gov (United States)

    Santos Martín, E; Crespo Vallejo, E

    2014-01-01

    In recent years, vascular and interventional radiology has become one of the fastest growing diagnostic and therapeutic specialties. This growth has been based on a fundamental concept: performing minimally invasive procedures under imaging guidance. This attractive combination has led to the interest of professionals from other clinical specialties outside radiology in performing this type of intervention. The future of vascular and interventional radiology, although uncertain, must be linked to clinical practice and multidisciplinary teamwork.

  17. Emergency department musculoskeletal radiological requests abuse and patients attitude toward radiological exposure in Saudi Arabia

    Directory of Open Access Journals (Sweden)

    T. Montaser*

    2013-12-01

    Conclusion: People in Saudi Arabia expose to huge amount of radiological hazardous with a common believe that radiology is essential for diagnosis all musculoskeletal injuries. Wealthy medical system does not always lead to competent practice.

  18. Radiology.

    Science.gov (United States)

    Patel, Ketan; Wallace, Roxanne; Busconi, Brian D

    2011-04-01

    Hip and groin pain are a common complaint among athletes of all ages, and may result from an acute injury or from chronic, repetitive trauma. Hip injuries can be intraarticular, extraarticular, or both. Labral abnormalities may occur in asymptomatic patients as well as in those with incapacitating symptoms and signs. Athletic hip injury leading to disabling intraarticular hip pain most commonly involves labral tear. The extraarticular causes are usually the result of overuse activity, leading to inflammation, tendonitis, or bursitis. In clinical practice, the term athletic pubalgia is used to describe exertional pubic or groin pain.

  19. Increasing titration speed by using an end paint anticipator device

    OpenAIRE

    2001-01-01

    A simple device is described for use in any titrations with the objective of rapidly locating the vicinity of the end point of a titration. The device stores inside about 10% of a 10 mL titrand solution. The titration itself proceeds with rapid addition of titrant until the end point is passed. The anticipator device now starts to rotate, using a dc motor, which is turned on by a micro-computer. The solution stored in the device is mixed with the already titrated solution and the property bei...

  20. Hi-Tech Skills Anticipation for Sustainable Development in Russia

    Directory of Open Access Journals (Sweden)

    Valery Gurtov

    2014-12-01

    Full Text Available It is evident that there is a heightened importance in Russia attributed to ensuring that students develop skills, which will enable them to be more productive and engaged citizens. This article deals with a skills anticipation methodology for seven hi-tech industries in Russia that resulted in the development of models for both soft and hard skills. There is a variety of widely applied methods – qualitative projection of labor market parameters, desk studies, documents analysis, foresight sessions, employers' and experts' surveys. As a result, new skills models are to help the specialists to effectively overcome the challenges, apply innovative decisions, and increase their technological knowledge.

  1. tsk tsk tsk and Beyond: Anticipating Distributed Aesthetics

    Directory of Open Access Journals (Sweden)

    Darren Tofts

    2005-01-01

    Full Text Available This paper considers some important precursory events in the formative history of Australian media arts. These events have anticipated the post-object, serial conception of arts practice that Nicholas Bourriaud has called relational aesthetics. Relational aesthetics interpret both artwork and audience in differential, highly idiosyncratic ways; ways that have become important to our contemporary vocabulary of interactive, immersive and interfaced art. This paper will consider the ways in which the concept of the network was important to artists such as Philip Brophy & Tsk-tsk-tsk in the early 1980s. It will also explore related notions of “audience manipulation” in the work of Martine Corompt.

  2. Ebola virus disease: radiology preparedness.

    Science.gov (United States)

    Bluemke, David A; Meltzer, Carolyn C

    2015-02-01

    At present, there is a major emphasis on Ebola virus disease (EVD) preparedness training at medical facilities throughout the United States. Failure to have proper EVD procedures in place was cited as a major reason for infection of medical personnel in the United States. Medical imaging does not provide diagnosis of EVD, but patient assessment in the emergency department and treatment isolation care unit is likely to require imaging services. The purpose of this article is to present an overview of relevant aspects of EVD disease and preparedness relevant to the radiologic community.

  3. Radiology of total hip replacement

    Energy Technology Data Exchange (ETDEWEB)

    Griffiths, H.J.; Lovelock, J.E.; McCollister Evarts, C.; Geyer, D.

    1984-06-01

    The radiology of total hip replacement (THR) and its complications is reviewed in conjunction with a long-term follow-up study on 402 patients with 501 prostheses. The indications, contraindications, biomechanics, and operative management of these patients is discussed. Clinical complications such as deep vein thrombosis, pulmonary embolism, and hemorrhage are mentioned. Postoperative infections including granulomatous pseudotumors, dislocations and fractures, true loosening of the prosthesis, and heterotopic bone formation (HBF) are discussed and illustrated. The importance of differentiating the lucent line from true loosening is stressed. Mechanical and other clinical complications which are largely ignored by radiologists are also discussed. The uses of arthrography and bone scanning are included.

  4. Nuclear and radiological Security: Introduction.

    Energy Technology Data Exchange (ETDEWEB)

    Miller, James Christopher [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2016-02-24

    Nuclear security includes the prevention and detection of, and response to, theft, sabotage, unauthorized access, illegal transfer, or other malicious acts involving nuclear or other radioactive substances or their associated facilities. The presentation begins by discussing the concept and its importance, then moves on to consider threats--insider threat, sabotage, diversion of materials--with considerable emphasis on the former. The intrusion at Pelindaba, South Africa, is described as a case study. The distinction between nuclear security and security of radiological and portable sources is clarified, and the international legal framework is touched upon. The paper concludes by discussing the responsibilities of the various entities involved in nuclear security.

  5. Radiological diagnosis of Brodie's abscess.

    Science.gov (United States)

    Kowalewski, Michał; Swiatkowski, Jan; Michałowska, Ilona; Swiecicka, Dorota

    2002-12-30

    Background. Brodie's abscess is a kind of rare subacute or chronic osteitis. It is probably caused by mistreated or non-treated osteitis, or by bacteria of low virulence. Material and methods. In the Orthopedic and Traumatology Clinic of our medical school 5 patients were diagnosed with Brodie's obsecess between 1999 and 2002. all the patients had conventional x-rays, while one also had CT and MRI. Results and conclusions. The typical x-ray image shows an osteolytic lesion with sclerotic margin in the diametophysis. Each of the 5 patients had surgery. In 4 cases the histopatological results confirmed the radiological diagnosis. In one case fibrous dysplasia was found.

  6. The role of radiology in Campylobacter enterocolitis

    Energy Technology Data Exchange (ETDEWEB)

    Demaerel, P.; Ponette, E.; Baert, A.L. (Leuven Univ. (Belgium). Dept. of Radiology); Lacquet, F.; Verbist, L. (Leuven Univ. (Belgium). Dept. of Microbiology); Rutgeerts, A.L. (Leuven Univ. (Belgium). Dept. of Internal Medicine)

    1989-05-01

    A series of 18 patients with diarrhoea and positive stool cultures for Campylobacter jejuni is presented. The most important radiological features were thickening of ileal mucosal folds, of interhaustral indentations and of the ileocaecal valve, lymphoid hyperplasia and microulcerations. Radiology, as well as endoscopy, are both non-specific in Campylobacter jejuni enterocolitis. The importance of radiology is to exclude more typical features of other causes of inflammatory bowel diseases. Moreover, before the result of the stool culture is available, the radiological features should suggest the suspicion of an acute infectious enterocolitis by Campylobacter jejuni as possible diagnosis. (orig.).

  7. Implementation of a Radiological Safety Coach program

    Energy Technology Data Exchange (ETDEWEB)

    Konzen, K.K. [Safe Sites of Colorado, Golden, CO (United States). Rocky Flats Environmental Technology Site; Langsted, J.M. [M.H. Chew and Associates, Golden, CO (United States)

    1998-02-01

    The Safe Sites of Colorado Radiological Safety program has implemented a Safety Coach position, responsible for mentoring workers and line management by providing effective on-the-job radiological skills training and explanation of the rational for radiological safety requirements. This position is significantly different from a traditional classroom instructor or a facility health physicist, and provides workers with a level of radiological safety guidance not routinely provided by typical training programs. Implementation of this position presents a challenge in providing effective instruction, requiring rapport with the radiological worker not typically developed in the routine radiological training environment. The value of this unique training is discussed in perspective with cost-savings through better radiological control. Measures of success were developed to quantify program performance and providing a realistic picture of the benefits of providing one-on-one or small group training. This paper provides a description of the unique features of the program, measures of success for the program, a formula for implementing this program at other facilities, and a strong argument for the success (or failure) of the program in a time of increased radiological safety emphasis and reduced radiological safety budgets.

  8. Evaluation of the contribution of radiological imaging to the final diagnosis in medical case reports

    Energy Technology Data Exchange (ETDEWEB)

    Wiesinger, Isabel; Scharf, Gregor; Platz, Natascha; Dendl, Lena M.; Stroszczynski, Christian; Schreyer, Andreas G. [University Hospital Regensburg, Institute of Radiology, Regensburg (Germany); Pawlik, Michael T. [Intensive Care and Emergency Medicine, Institute of Anaesthesiology, Regensburg (Germany)

    2015-05-01

    To evaluate the clinical value and impact of radiological imaging in published medial case reports. We analysed 671 consecutively published case reports of a peer-reviewed medical journal for case reports. The general use of radiological imaging as well as the specific imaging modality used in each case (ultrasound, x-ray, fluoroscopy, CT, MRI) was documented, and most importantly the 'final problem solver', i.e. the diagnostic modality giving the final clue to the patient's diagnosis, was identified. In 511 of 671 (76.1 %) analysed case reports at least one radiological modality was used in the diagnostic cascade. In 28.6 % of all cases the final diagnosis was achieved by radiological imaging. All other cases were solved by the patient's history and physical examination (15.2 %), histology (12.4 %), and blood analysis (9.6 %). When radiology was the 'final problem solver', it was mainly CT (51.6 %) and MRI (30.6 %). In 52.2 % of the case reports the radiological image was included in the article. In case reports published in a prominent general medical journal radiological imaging is an important key player in the diagnostic process. In many cases, it is also the diagnostic tool which ultimately leads to determining the final diagnosis. (orig.)

  9. Anticipating early fatality: friends', schoolmates' and individual perceptions of fatality on adolescent risk behaviors.

    Science.gov (United States)

    Haynie, Dana L; Soller, Brian; Williams, Kristi

    2014-02-01

    Past research indicates that anticipating adverse outcomes, such as early death (fatalism), is associated positively with adolescents' likelihood of engaging in risky behaviors. Health researchers and criminologists have argued that fatalism influences present risk taking in part by informing individuals' motivation for delaying gratification for the promise of future benefits. While past findings highlight the association between the anticipation of early death and a number of developmental outcomes, no known research has assessed the impact of location in a context characterized by high perceptions of fatality. Using data from Add Health and a sample of 9,584 adolescents (51% female and 71% white) nested in 113 schools, our study builds upon prior research by examining the association between friends', school mates', and individual perceptions of early fatality and adolescent risk behaviors. We test whether friends' anticipation of being killed prior to age 21 or location in a school where a high proportion of the student body subscribes to attitudes of high fatality, is associated with risky behaviors. Results indicate that friends' fatalism is positively associated with engaging in violent delinquency, non-violent delinquency, and drug use after controlling for individual covariates and prior individual risk-taking. Although friends' delinquency accounts for much of the effect of friends' fatalism on violence, none of the potential intervening variables fully explain the effect of friends' fatalism on youth involvement in non-violent delinquency and drug use. Our results underscore the importance of friendship contextual effects in shaping adolescent risk-taking behavior and the very serious consequences perceptions of fatality have for adolescents' involvement in delinquency and drug use.

  10. Status of SRNL radiological field lysimeter experiment-Year 1

    Energy Technology Data Exchange (ETDEWEB)

    Kaplan, D. [Savannah River Site (SRS), Aiken, SC (United States). Savannah River National Lab. (SRNL); Roberts, K. [Savannah River Site (SRS), Aiken, SC (United States). Savannah River National Lab. (SRNL); Bagwell, L. [Savannah River Site (SRS), Aiken, SC (United States). Savannah River National Lab. (SRNL)

    2013-10-01

    The Savannah River National Laboratory (SRNL) Radiological Field Lysimeter Experiment is a one-of-a-kind field facility designed to study radionuclide geochemical processes at a larger spatial scale (from grams to tens of kilograms sediment) and temporal scale (from months to 10 years) than is readily afforded through laboratory studies. The lysimeter facility is intended to capture the natural heterogeneity of moisture and temperature regimes in the vadose zone, the unsaturated subsurface region between the surface soil and the underlying aquifer. The 48 lysimeter columns, which contain various radionuclides (and stable iodine), were opened to rainfall infiltration on July 5, 2012. The objective of this report is to provide a status of the lysimeter facility operations and to compile data collected during FY13, including leachate volume, rainfall, and soil moisture and temperature in situ probe data. Radiological leachate data are not presented in this document but will be the subject of a separate document.1 Leachate samples were collected quarterly and shipped to Clemson University for radiological analyses. Rainfall, leachate volume, moisture and temperature probe data were collected continuously. During operations of the facility this year, there were four safety or technical concerns that required additional maintenance: 1) radioactivity was detected in one of the overflow bottles (captured water collected from the secondary containment that does not come in contact with the radiological source material); 2) rainwater accumulated within the sample-bottle storage sheds; 3) overflow containers collected more liquid than anticipated; and 4) significant spider infestation occurred in the sample-bottle storage sheds. To address the first three concerns, each of the lysimeter columns was re-plumbed to improve and to minimize the number of joint unions. To address the fourth concern regarding spiders, new sample-bottle water sheds were purchased and a pest control

  11. Subjective illusion of control modulates striatal reward anticipation in adolescence.

    Science.gov (United States)

    Lorenz, Robert C; Gleich, Tobias; Kühn, Simone; Pöhland, Lydia; Pelz, Patricia; Wüstenberg, Torsten; Raufelder, Diana; Heinz, Andreas; Beck, Anne

    2015-08-15

    The perception of control over the environment constitutes a fundamental biological adaptive mechanism, especially during development. Previous studies comparing an active choice condition with a passive no-choice condition showed that the neural basis of this mechanism is associated with increased activity within the striatum and the prefrontal cortex. In the current study, we aimed to investigate whether subjective belief of control in an uncertain gambling situation induces elevated activation in a cortico-striatal network. We investigated 79 adolescents (age range: 13-16years) during reward anticipation with a slot machine task using functional magnetic resonance imaging. We assessed post-experimentally whether the participants experienced a subjective illusion of control on winning or losing in this task that was objectively not given. Nineteen adolescents experienced an illusion of control during slot machine gambling. This illusion of control group showed an increased neural activity during reward anticipation within a cortico-striatal network including ventral striatum (VS) as well as right inferior frontal gyrus (rIFG) relative to the group reporting no illusion of control. The rIFG activity was inversely associated with impulsivity in the no illusion of control group. The subjective belief about control led to an elevated ventral striatal activity, which is known to be involved in the processing of reward. This finding strengthens the notion that subjectively perceived control, not necessarily the objective presence of control, affects striatal reward-related processing.

  12. Five year old preschoolers’ sharing is influenced by anticipated reciprocation

    Directory of Open Access Journals (Sweden)

    Mingrui eXiong

    2016-03-01

    Full Text Available Whether children share in anticipation of future benefits returned by a partner is an interesting question. In this study, 5-year-old children and an adult partner played a sharing game, in which children donated first and the partner donated afterward. In Experiment 1, the partner’s resources were more attractive than the child’s. In the reciprocal condition, the child was told that s/he would be a recipient when the partner played as a donor. In the nonreciprocal condition, however, the child was told that an anonymous child would be the recipient when the partner donated. Results showed that children shared more with the partner when they knew that they would be a recipient later. In Experiment 2, the child was always the recipient when the partner donated, but the partner’s resources were more desirable than the child’s in the high-value condition, and less desirable in the low-value condition. We found that children were more generous when the partner’s resources were valued higher. These findings demonstrate that 5-year-old preschoolers’ sharing choices take into account the anticipated reciprocity of the recipient, suggesting either self-interested tactical sharing or direct reciprocity in advance of receiving. Specifically, they adjust their sharing behavior depending on whether a partner has the potential to reciprocate, and whether it is worth sharing relative to the value of the payback.

  13. Time to Tango: expertise and contextual anticipation during action observation.

    Science.gov (United States)

    Amoruso, Lucía; Sedeño, Lucas; Huepe, David; Tomio, Ailin; Kamienkowski, Juan; Hurtado, Esteban; Cardona, Juan Felipe; Álvarez González, Miguel Ángel; Rieznik, Andrés; Sigman, Mariano; Manes, Facundo; Ibáñez, Agustín

    2014-09-01

    Predictive theories of action observation propose that we use our own motor system as a guide for anticipating and understanding other people's actions through the generation of context-based expectations. According to this view, people should be better in predicting and interpreting those actions that are present in their own motor repertoire compared to those that are not. We recorded high-density event-related potentials (ERPs: P300, N400 and Slow Wave, SW) and source estimation in 80 subjects separated by their level of expertise (experts, beginners and naïves) as they observed realistic videos of Tango steps with different degrees of execution correctness. We also performed path analysis to infer causal relationships between ongoing anticipatory brain activity, evoked semantic responses, expertise measures and behavioral performance. We found that anticipatory activity, with sources in a fronto-parieto-occipital network, early discriminated between groups according to their level of expertise. Furthermore, this early activity significantly predicted subsequent semantic integration indexed by semantic responses (N400 and SW, sourced in temporal and motor regions) which also predicted motor expertise. In addition, motor expertise was a good predictor of behavioral performance. Our results show that neural and temporal dynamics underlying contextual action anticipation and comprehension can be interpreted in terms of successive levels of contextual prediction that are significantly modulated by subject's prior experience.

  14. Strong anticipation: Multifractal cascade dynamics modulate scaling in synchronization behaviors

    Energy Technology Data Exchange (ETDEWEB)

    Stephen, Damian G., E-mail: foovian@gmail.co [Wyss Institute for Biologically Inspired Engineering, Harvard University, 3 Blackfan Circle, Floor 5, Boston, MA 02115 (United States); Dixon, James A. [Department of Psychology, University of Connecticut, 406 Babbidge Rd., Unit 1020, Storrs, CT 06269-1020 (United States); Haskins Laboratories, 300 George St., New Haven, CT 06511 (United States)

    2011-01-15

    Research highlights: We investigated anticipatory behaviors in response to chaotic metronomes. We assessed multifractal structure in tap intervals and onset intervals. Strength of multifractality in tap intervals appears to match that in onset intervals. - Abstract: Previous research on anticipatory behaviors has found that the fractal scaling of human behavior may attune to the fractal scaling of an unpredictable signal [Stephen DG, Stepp N, Dixon JA, Turvey MT. Strong anticipation: Sensitivity to long-range correlations in synchronization behavior. Physica A 2008;387:5271-8]. We propose to explain this attunement as a case of multifractal cascade dynamics [Schertzer D, Lovejoy S. Generalised scale invariance in turbulent phenomena. Physico-Chem Hydrodyn J 1985;6:623-5] in which perceptual-motor fluctuations are coordinated across multiple time scales. This account will serve to sharpen the contrast between strong and weak anticipation: whereas the former entails a sensitivity to the intermittent temporal structure of an unpredictable signal, the latter simply predicts sensitivity to an aggregate description of an unpredictable signal irrespective of actual sequence. We pursue this distinction through a reanalysis of Stephen et al.'s data by examining the relationship between the widths of singularity spectra for intertap interval time series and for each corresponding interonset interval time series. We find that the attunement of fractal scaling reported by Stephen et al. was not the trivial result of sensitivity to temporal structure in aggregate but reflected a subtle sensitivity to the coordination across multiple time scales of fluctuation in the unpredictable signal.

  15. Coincidence-anticipation timing requirements are different in racket sports.

    Science.gov (United States)

    Akpinar, Selçuk; Devrilmez, Erhan; Kirazci, Sadettin

    2012-10-01

    The aim of this study was to compare the coincidence-anticipation timing accuracy of athletes of different racket sports with various stimulus velocity requirements. Ninety players (15 girls, 15 boys for each sport) from tennis (M age = 12.4 yr., SD = 1.4), badminton (M age = 12.5 yr., SD = 1.4), and table tennis (M age = 12.4 yr., SD = 1.2) participated in this study. Three different stimulus velocities, low, moderate, and high, were used to simulate the velocity requirements of these racket sports. Tennis players had higher accuracy when they performed under the low stimulus velocity compared to badminton and table tennis players. Badminton players performed better under the moderate speed comparing to tennis and table tennis players. Table tennis players had better performance than tennis and badminton players under the high stimulus velocity. Therefore, visual and motor systems of players from different racket sports may adapt to a stimulus velocity in coincidence-anticipation timing, which is specific to each type of racket sports.

  16. The Boxing Day Tsunami: Could the Disaster have been Anticipated?

    Science.gov (United States)

    Cummins, P. R.; Burbdige, D.

    2005-05-01

    The occurrence of the 26 December, 2004 Sumatra-Andaman earthquake and the accompanying "Boxing Day" Tsunami, which killed over 280,00, has been described as one of the most lethal natural disasters in human history. Many lives could have been saved had a tsunami warning system, similar to that which exists for the Pacific Ocean, been in operation for the Indian Ocean. The former exists because great subduction zone earthquakes have generated destructive, Pacific-wide tsunami in the Pacific Ocean with some frequency. Prior to 26 December, 2004, all of the world's earthquakes with magnitude > 9 were widely thought to have occurred in the Pacific Ocean, where they caused destructive tsunami. Could the occurrence of similar earthquakes and tsunami in the Indian Ocean been predicted prior to the 2004 Box Day Tragedy? This presentation will argue that the answer is "Yes". Almost without exception (the exception being the 1952 Kamchatka earthquake) the massive subduction zone earthquakes and tsunami of the Pacific Ocean have been associated with the subduction of relatively young ocean lithosphere (Boxing day event, the effects in the Bay of Bengal would not have been as severe. Thus, it seems to this author that the Boxing Day event could and should have been anticipated. This presentation will further consider why it was not, and what steps can be taken to anticipate and mitigate the effects of future events that may occur in the Indian Ocean and elsewhere.

  17. Bony sequestrum: A radiologic review

    Energy Technology Data Exchange (ETDEWEB)

    Jennin, Felicie; Bousson, Valerie; Parlier, Caroline; Jomaah, Nabil; Khanine, Vanessa; Laredo, Jean-Denis [Lariboisiere Hospital, Department of Radiology, Paris (France)

    2011-08-15

    According to a pathological definition, a bony sequestrum is defined as a piece of devitalized bone that has been separated from the surrounding bone during the process of necrosis. However, the radiological definition of a sequestrum is different and refers to an image of calcification visible within a lucent lesion, completely separated from the surrounding bone, without referring to the vascular status and histological nature of the calcified tissue. The term ''button sequestrum'' has been used in calvarial lesions. The prototype conditions that may present with a bony sequestrum are osteomyelitis and skeletal tuberculosis. Other conditions such as radiation necrosis, eosinophilic granuloma, metastatic carcinoma, primary lymphoma of bone, aggressive fibrous tumors may also manifest as osteolytic lesions containing a sequestrum. In addition, some primary bone tumors produce a matrix that may mineralize and sometimes simulate a bone sequestrum. These include osteoid tumors (osteoid osteoma, osteoblastoma), cartilaginous tumors (chondroma and chondroblastoma), lipomatous tumors (lipoma), and benign fibrous tumors (fibromyxoma, myxoma, and desmoplastic fibroma). Therefore, various conditions may present at imaging as a small area of osteolysis containing central calcifications. However, a careful analysis of the sequestrum as well as the associated clinical and radiological findings often enables to point toward a limited number of conditions. (orig.)

  18. PearlTrees web-based interface for teaching informatics in the radiology residency

    Science.gov (United States)

    Licurse, Mindy Y.; Cook, Tessa S.

    2014-03-01

    Radiology and imaging informatics education have rapidly evolved over the past few decades. With the increasing recognition that future growth and maintenance of radiology practices will rely heavily on radiologists with fundamentally sound informatics skills, the onus falls on radiology residency programs to properly implement and execute an informatics curriculum. In addition, the American Board of Radiology may choose to include even more informatics on the new board examinations. However, the resources available for didactic teaching and guidance most especially at the introductory level are widespread and varied. Given the breadth of informatics, a centralized web-based interface designed to serve as an adjunct to standardized informatics curriculums as well as a stand-alone for other interested audiences is desirable. We present the development of a curriculum using PearlTrees, an existing web-interface based on the concept of a visual interest graph that allows users to collect, organize, and share any URL they find online as well as to upload photos and other documents. For our purpose, the group of "pearls" includes informatics concepts linked by appropriate hierarchal relationships. The curriculum was developed using a combination of our institution's current informatics fellowship curriculum, the Practical Imaging Informatics textbook1 and other useful online resources. After development of the initial interface and curriculum has been publicized, we anticipate that involvement by the informatics community will help promote collaborations and foster mentorships at all career levels.

  19. A Comprehensive Analysis of Authorship in Radiology Journals.

    Directory of Open Access Journals (Sweden)

    Wilfred Dang

    Full Text Available The purpose of our study was to investigate authorship trends in radiology journals, and whether International Committee of Medical Journal Editors (ICMJE recommendations have had an impact on these trends. A secondary objective was to explore other variables associated with authorship trends.A retrospective, bibliometric analysis of 49 clinical radiology journals published from 1946-2013 was conducted. The following data was exported from MEDLINE (1946 to May 2014 for each article: authors' full name, year of publication, primary author institution information, language of publication and publication type. Microsoft Excel Visual Basics for Applications scripts were programmed to categorize extracted data. Statistical analysis was performed to determine the overall mean number of authors per article over time, impact of ICMJE guidelines, authorship frequency per journal, country of origin, article type and language of publication.216,271 articles from 1946-2013 were included. A univariate analysis of the mean authorship frequency per year of all articles yielded a linear relationship between time and authorship frequency. The mean number of authors per article in 1946 (1.42 was found to have increased consistently by 0.07 authors/ article per year (R² = 0.9728, P<0.001 to 5.79 authors/article in 2013. ICMJE guideline dissemination did not have an impact on this rise in authorship frequency. There was considerable variability in mean authors per article and change over time between journals, country of origin, language of publication and article type.Overall authorship for 49 radiology journals across 68 years has increased markedly with no demonstrated impact from ICMJE guidelines. A higher number of authors per article was seen in articles from: higher impact journals, European and Asian countries, original research type, and those journals who explicitly endorse the ICMJE guidelines.

  20. A Comprehensive Analysis of Authorship in Radiology Journals

    Science.gov (United States)

    Dang, Wilfred; McInnes, Matthew D. F.; Kielar, Ania Z.; Hong, Jiho

    2015-01-01

    Objectives The purpose of our study was to investigate authorship trends in radiology journals, and whether International Committee of Medical Journal Editors (ICMJE) recommendations have had an impact on these trends. A secondary objective was to explore other variables associated with authorship trends. Methods A retrospective, bibliometric analysis of 49 clinical radiology journals published from 1946–2013 was conducted. The following data was exported from MEDLINE (1946 to May 2014) for each article: authors’ full name, year of publication, primary author institution information, language of publication and publication type. Microsoft Excel Visual Basics for Applications scripts were programmed to categorize extracted data. Statistical analysis was performed to determine the overall mean number of authors per article over time, impact of ICMJE guidelines, authorship frequency per journal, country of origin, article type and language of publication. Results 216,271 articles from 1946–2013 were included. A univariate analysis of the mean authorship frequency per year of all articles yielded a linear relationship between time and authorship frequency. The mean number of authors per article in 1946 (1.42) was found to have increased consistently by 0.07 authors/ article per year (R² = 0.9728, P<0.001) to 5.79 authors/article in 2013. ICMJE guideline dissemination did not have an impact on this rise in authorship frequency. There was considerable variability in mean authors per article and change over time between journals, country of origin, language of publication and article type. Conclusion Overall authorship for 49 radiology journals across 68 years has increased markedly with no demonstrated impact from ICMJE guidelines. A higher number of authors per article was seen in articles from: higher impact journals, European and Asian countries, original research type, and those journals who explicitly endorse the ICMJE guidelines. PMID:26407072

  1. Medical preparedness for chemical, biological, radiological, nuclear, and explosives (CBRNE) events: gaps and recommendations.

    Science.gov (United States)

    Wilkinson, Diana; Waruszynski, Barbara; Mazurik, Laurie; Szymczak, Ann-Marie; Redmond, Erin; Lichacz, Fred

    2010-11-01

    The Workshop on Medical Preparedness for Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) events: national scan was held on 20 and 21 May 2010 at the Diefenbunker Museum in Ottawa, Canada. The purpose of the workshop was to provide the CBRNE Research and Technology Initiative with a Canadian national profile of existing capabilities and anticipated gaps in casualty management consistent with the community emergency response requirements. The workshop was organised to enable extensive round-table discussions and provide a summary of key gaps and recommendations for emergency response planners.

  2. Diminishing striatal activation across adolescent development during reward anticipation in offspring of schizophrenia patients.

    Science.gov (United States)

    Vink, Matthijs; de Leeuw, Max; Pouwels, Ruby; van den Munkhof, Hanna E; Kahn, René S; Hillegers, Manon

    2016-01-01

    Schizophrenia is a severe psychiatric disorder associated with impaired fronto-striatal functioning. Similar deficits are observed in unaffected siblings of patients, indicating that these deficits are linked to a familial risk for the disorder. Fronto-striatal deficits may arise during adolescence and precede clinical manifestation of the disorder. However, the development of the fronto-striatal network in adolescents at increased familial risk for schizophrenia is still poorly understood. In this cross-sectional study, we investigate the impact of familial risk on fronto-striatal functioning across age related to reward anticipation and receipt in 25 adolescent offspring of schizophrenia patients (SZ offspring) and 36 age-matched healthy controls (range 10-19years). Subjects performed a reward task while being scanned with functional MRI. Overall response times and the amount of money won did not differ between the groups. Striatal activation during reward anticipation decreased across age in the SZ offspring, while it did not in the healthy controls. Activation in the orbitofrontal cortex during reward receipt did not differ between the groups. These results, taken together with data from adult schizophrenia patients and their siblings, indicate that the diminishing striatal activation across adolescence may signify a familial vulnerability for schizophrenia.

  3. Radioactive Waste Management Complex low-level waste radiological performance assessment

    Energy Technology Data Exchange (ETDEWEB)

    Maheras, S.J.; Rood, A.S.; Magnuson, S.O.; Sussman, M.E.; Bhatt, R.N.

    1994-04-01

    This report documents the projected radiological dose impacts associated with the disposal of radioactive low-level waste at the Radioactive Waste Management Complex at the Idaho National Engineering Laboratory. This radiological performance assessment was conducted to evaluate compliance with applicable radiological criteria of the US Department of Energy and the US Environmental Protection Agency for protection of the public and the environment. The calculations involved modeling the transport of radionuclides from buried waste, to surface soil and subsurface media, and eventually to members of the public via air, groundwater, and food chain pathways. Projections of doses were made for both offsite receptors and individuals inadvertently intruding onto the site after closure. In addition, uncertainty and sensitivity analyses were performed. The results of the analyses indicate compliance with established radiological criteria and provide reasonable assurance that public health and safety will be protected.

  4. Radiology journals in transition: a summary of the 2013 Intersociety Committee Summer Conference.

    Science.gov (United States)

    Dodd, Gerald D

    2015-01-01

    The digital and online revolution is having a profound impact on radiology journals, forcing a migration from print to online publication and altering traditional revenue streams needed to sustain the journals. The 2013 Intersociety Committee Summer Conference attendees reviewed the history of the development of radiology journals, explored the forces driving the transition from print to electronic publication, and examined the impact of the alteration of the traditional revenue streams, such as subscription and advertisement dollars, on the financial sustainability of journals. The attendees also discussed the international movement toward open access to journal content and its impact on a journal's financial viability. Lastly, the committee explored the perceived value of radiology journals based on readership type: academic, private practice, or industry.

  5. New trends in radiology workstation design

    Science.gov (United States)

    Moise, Adrian; Atkins, M. Stella

    2002-05-01

    In the radiology workstation design, the race for adding more features is now morphing into an iterative user centric design with the focus on ergonomics and usability. The extent of the list of features for the radiology workstation used to be one of the most significant factors for a Picture Archiving and Communication System (PACS) vendor's ability to sell the radiology workstation. Not anymore is now very much the same between the major players in the PACS market. How these features work together distinguishes different radiology workstations. Integration (with the PACS/Radiology Information System (RIS) systems, with the 3D tool, Reporting Tool etc.), usability (user specific preferences, advanced display protocols, smart activation of tools etc.) and efficiency (what is the output a radiologist can generate with the workstation) are now core factors for selecting a workstation. This paper discusses these new trends in radiology workstation design. We demonstrate the importance of the interaction between the PACS vendor (software engineers) and the customer (radiologists) during the radiology workstation design. We focus on iterative aspects of the workstation development, such as the presentation of early prototypes to as many representative users as possible during the software development cycle and present the results of a survey of 8 radiologists on designing a radiology workstation.

  6. Nevada Test Site Radiological Control Manual

    Energy Technology Data Exchange (ETDEWEB)

    Radiological Control Managers' Council - Nevada Test Site

    2009-10-01

    This document supersedes DOE/NV/11718--079, “NV/YMP Radiological Control Manual,” Revision 5 issued in November 2004. Brief Description of Revision: A complete revision to reflect the recent changes in compliance requirements with 10 CFR 835, and for use as a reference document for Tenant Organization Radiological Protection Programs.

  7. Curricular Guidelines for Dental Auxiliary Radiology.

    Science.gov (United States)

    Journal of Dental Education, 1981

    1981-01-01

    AADS curricular guidelines suggest objectives for these areas of dental auxiliary radiology: physical principles of X-radiation in dentistry, related radiobiological concepts, principles of radiologic health, radiographic technique, x-ray films and intensifying screens, factors contributing to film quality, darkroom, and normal variations in…

  8. Radiology Aide. Instructor Key [and] Student Manual.

    Science.gov (United States)

    Hartwein, Jon; Dunham, John

    This manual can be used independently by students in secondary health occupations programs or by persons receiving on-the-job training in a radiology department. The manual includes an instructor's key that provides answers to the activity sheets and unit evaluations. The manual consists of the following five units: (1) orientation to radiology;…

  9. Radiological health aspects of uranium milling

    Energy Technology Data Exchange (ETDEWEB)

    Fisher, D.R.; Stoetzel, G.A.

    1983-05-01

    This report describes the operation of conventional and unconventional uranium milling processes, the potential for occupational exposure to ionizing radiation at the mill, methods for radiological safety, methods of evaluating occupational radiation exposures, and current government regulations for protecting workers and ensuring that standards for radiation protection are adhered to. In addition, a survey of current radiological health practices is summarized.

  10. 76 FR 49458 - TRICARE; Hospital Outpatient Radiology Discretionary Appeal Adjustments

    Science.gov (United States)

    2011-08-10

    ... of the Secretary TRICARE; Hospital Outpatient Radiology Discretionary Appeal Adjustments AGENCY... hospitals of an opportunity for net adjusted payments for radiology services for which TRICARE payments were... radiology services specified in the regulation as being reimbursed under the allowable charge...

  11. Bridging radiology and public health: the emerging field of radiologic public health informatics.

    Science.gov (United States)

    Mollura, Daniel J; Carrino, John A; Matuszak, Diane L; Mnatsakanyan, Zaruhi R; Eng, John; Cutchis, Protagoras; Babin, Steven M; Sniegoski, Carol; Lombardo, Joseph S

    2008-03-01

    Radiology and public health have an emerging opportunity to collaborate, in which radiology's vast supply of imaging data can be integrated into public health information systems for epidemiologic assessments and responses to population health problems. Fueling the linkage of radiology and public health include (i) the transition from analog film to digital formats, enabling flexible use of radiologic data; (ii) radiology's role in imaging across nearly all medical and surgical subspecialties, which establishes a foundation for a consolidated and uniform database of images and reports for public health use; and (iii) the use of radiologic data to characterize disease patterns in a population occupying a geographic area at one time and to characterize disease progression over time via follow-up examinations. The backbone for this integration is through informatics projects such as Systematized Nomenclature of Medicine Clinical Terms and RadLex constructing terminology libraries and ontologies, as well as algorithms integrating data from the electronic health record and Digital Imaging and Communications in Medicine Structured Reporting. Radiology's role in public health is being tested in disease surveillance systems for outbreak detection and bioterrorism, such as the Electronic Surveillance System for the Early Notification of Community-based Epidemics. Challenges for radiologic public health informatics include refining the systems and user interfaces, adhering to privacy regulations, and strengthening collaborative relations among stakeholders, including radiologists and public health officials. Linking radiology with public health, radiologic public health informatics is a promising avenue through which radiology can contribute to public health decision making and health policy.

  12. Revitalizing the United Nations. Anticipation and Prevention as Primary Goals

    Directory of Open Access Journals (Sweden)

    Alexandra Novosseloff

    2000-12-01

    Full Text Available In tackling the on-going topic of UN reform, one should be honest with the analysis of the problems at stakes. It is necessary to first take into account the profound changes that have occurred since the end of the Cold War, as well as acknowledging the limits of an international organization and the shape of the UN system. It is only from that analysis that proposals can be made to rationalize and to make more efficient the functioning of the United Nations. What the Organization needs is not only a rationalization, it primarily needs a vision that gives it purpose and meaning. This article proposes that its primary goals should be anticipation and prevention – it should be the advanced guard and the conscience of the world. In this context, the United Nations is an indispensable and priceless instrument in international relations.

  13. A Complex Data Warehouse for Personalized, Anticipative Medicine

    CERN Document Server

    Darmont, Jérôme

    2008-01-01

    With the growing use of new technologies, healthcare is nowadays undergoing significant changes. Information-based medicine has to exploit medical decision-support systems and requires the analysis of various, heterogeneous data, such as patient records, medical images, biological analysis results, etc. In this paper, we present the design of the complex data warehouse relating to high-level athletes. It is original in two ways. First, it is aimed at storing complex medical data. Second, it is designed to allow innovative and quite different kinds of analyses to support: (1) personalized and anticipative medicine (in opposition to curative medicine) for well-identified patients; (2) broad-band statistical studies over a given population of patients. Furthermore, the system includes data relating to several medical fields. It is also designed to be evolutionary to take into account future advances in medical research.

  14. Anticipative Stochastic Differential Equations with Non-smooth Diffusion Coefficient

    Institute of Scientific and Technical Information of China (English)

    Zong Xia LIANG

    2006-01-01

    In this paper we prove the existence and uniqueness of the solutions to the one-dimensional linear stochastic differential equation with Skorohod integralXt(ω) = η(ω) + ∫t0 asXs(ω)dWs + bsXs(ω)ds, t ∈ [0, 1],where (Ws) is the canonical Wiener process defined on the standard Wiener space ((W), (H),μ), a is non-smooth and adapted, but η and b may be anticipating to the filtration generated by (Ws). The intention of the paper is to eliminate the regularity of the diffusion coefficient a in the Malliavin sense, in the existing literature. The idea is to approach the non-smooth diffusion coefficient a by smooth ones.

  15. Anticipated effects of climate change on estuarine and coastal fisheries

    Energy Technology Data Exchange (ETDEWEB)

    Kennedy, V.S. (Univ. of Maryland, Cambridge (USA))

    Although the timing and magnitude of global climate change is in dispute, the possible effects of such charge merit consideration to allow for discussion of policy ramification and mitigative actions. Climate change may result in sea level rise; water temperature increase; and deviations from present patterns of precipitation, wind, and water circulation. Estuaries may experience loss of marsh habitat, intrusion of marine waters and associated organisms, changes in circulation patterns that affect retention of some indigenous species, and increased hypoxia and storm surges. Estuarine and coastal systems could experience poleward retreat of cold-tolerant species and range expansion of warm-tolerant species. Some fisheries and aquacultural enterprises and communities would benefit from the results of climate change and others would suffer losses, with economic and population dislocations probably inevitable in many parts of the world. Thus, flexibility in policy-making and planning will be vital if global climate is modified as rapidly as is anticipated by some scientists.

  16. Systems and models with anticipation in physics and its applications

    Science.gov (United States)

    Makarenko, A.

    2012-11-01

    Investigations of recent physics processes and real applications of models require the new more and more improved models which should involved new properties. One of such properties is anticipation (that is taking into accounting some advanced effects).It is considered the special kind of advanced systems - namely a strong anticipatory systems introduced by D. Dubois. Some definitions, examples and peculiarities of solutions are described. The main feature is presumable multivaluedness of the solutions. Presumable physical examples of such systems are proposed: self-organization problems; dynamical chaos; synchronization; advanced potentials; structures in micro-, meso- and macro- levels; cellular automata; computing; neural network theory. Also some applications for modeling social, economical, technical and natural systems are described.

  17. Radiology of gestational trophoblastic neoplasia

    Energy Technology Data Exchange (ETDEWEB)

    Allen, S.D. [Department of Radiology, Charing Cross Hospital, Hammersmith Hospitals NHS Trust, London (United Kingdom); Lim, A.K. [Department of Radiology, Charing Cross Hospital, Hammersmith Hospitals NHS Trust, London (United Kingdom); Seckl, M.J. [Department of Medical Oncology, Charing Cross Hospital, Hammersmith Hospitals NHS Trust, London (United Kingdom); Blunt, D.M. [Department of Radiology, Charing Cross Hospital, Hammersmith Hospitals NHS Trust, London (United Kingdom); Mitchell, A.W. [Department of Radiology, Charing Cross Hospital, Hammersmith Hospitals NHS Trust, London (United Kingdom)]. E-mail: amitchell@hhnt.org

    2006-04-15

    Gestational trophoblastic neoplasia (GTN) encompasses a broad spectrum of placental lesions from the pre-malignant hydatidiform mole (complete and partial) through to the malignant invasive mole, choriocarcinoma and rare placental site trophoblastic tumour (PSTT). Ultrasound remains the radiological investigation of choice for initial diagnosis, and it can also predict invasive and recurrent disease. Magnetic resonance imaging is of invaluable use in assessing extra-uterine tumour spread, tumour vascularity, and overall staging. Positron emission tomography and computed tomography undoubtedly have a role in recurrent and metastatic disease, while angiography has a place in disease and complication management. This review will describe the relevant pathophysiology and natural history of GTN, and the use of imaging techniques in the diagnosis and management of these conditions.

  18. Radiologic Imaging of Diaphragmatic Pathologies

    Directory of Open Access Journals (Sweden)

    Hatice Öztürkmen Akay

    2004-01-01

    Full Text Available We researched the images methods in the evaluation of diaphragmaticpathologies. The study was done with 30 patients (21 males, 9 females. Themedian age of the patients was 36.1 years (Range 1-74 years. Firstly,lateraly and posteroanterior chest X-Ray were done in all patients the otherradiological images were the Barium examination, ultrasonography,computerized tomography and magnetic rezonans imaging. We determineddiaphragmatic pseudotumour in 4 patients, congenital diaphragmatichernia in 6 patients, diaphragmatic paralysis in 2 patients, diaphragmaticelevation in 8 patients, hiatal hernia in 5 patients, and diaphragmaticrupture in 5 patients.Although radiological images were developed all, we believe that thediaphragmatic pathologies should be evaluated with both clinically andradiologically in all patients.

  19. Radiological aspects of psoriatic osteoarthropathia

    Energy Technology Data Exchange (ETDEWEB)

    Ellegast, H.H.; Haydl, H.; Petershofer, H.; Prohaska, E.

    1984-03-01

    Psoriatic osteoarthropathia is a disease of the joints, spine, and bones. It belongs to the category of ''seronegative spondarthritis'', the prototype of which is ankylosing spondylitis. Contrary to earlier assumptions, morphological changes in the X-ray picture are frequent if the joints (psoriatic arthritis) or axial skeleton (psoriatic spondylitis) are affected. Radiographic signs are listed and scintigraphic findings discussed. The morphological changes in the X-ray picture are characteristic, even without psoriatic lesions of the skin. Sacro-iliac changes in the axial skeleton are frequent. In other parts of the skeleton, typical parasyndesmophytes are slightly less frequent, and changes as in ankylosing spondylitis may occur. The diagnosis is easier with whole-body scintiscanning as this technique is able to detect early changes which are not noticeable clinically or radiologically.

  20. The interventional radiology business plan.

    Science.gov (United States)

    Beheshti, Michael V; Meek, Mary E; Kaufman, John A

    2012-09-01

    Strategic planning and business planning are processes commonly employed by organizations that exist in competitive environments. Although it is difficult to prove a causal relationship between formal strategic/business planning and positive organizational performance, there is broad agreement that formal strategic and business plans are components of successful organizations. The various elements of strategic plans and business plans are not common in the vernacular of practicing physicians. As health care becomes more competitive, familiarity with these tools may grow in importance. Herein we provide an overview of formal strategic and business planning, and offer a roadmap for an interventional radiology-specific plan that may be useful for organizations confronting competitive and financial threats.

  1. Radiological maps for Trabzon, Turkey

    Energy Technology Data Exchange (ETDEWEB)

    Kurnaz, A., E-mail: asliy@ktu.edu.t [Karadeniz Technical University, Department of Physics, 61080 Trabzon (Turkey); Kucukomeroglu, B. [Karadeniz Technical University, Department of Physics, 61080 Trabzon (Turkey); Damla, N. [Batman University, Department of Physics, 72060 Batman (Turkey); Cevik, U. [Karadeniz Technical University, Department of Physics, 61080 Trabzon (Turkey)

    2011-04-15

    The activity concentrations and absorbed gamma dose rates due to primordial radionuclides and {sup 137}Cs have been ascertained in 222 soil samples in 18 counties of the Trabzon province of Turkey using a HPGe detector. The mean activity concentrations of {sup 238}U, {sup 232}Th, {sup 40}K and {sup 137}Cs in soil samples were 41, 35, 437 and 21 Bq kg{sup -1}, respectively. Based on the measured concentrations of these radionuclides, the mean absorbed gamma dose in air was calculated as 59 nGy h{sup -1} and hence, the mean annual effective dose due to terrestrial gamma radiation was calculated as 72 {mu}Sv y{sup -1}. In addition, outdoor in situ gamma dose rate (D) measurements were performed in the same 222 locations using a portable NaI detector and the annual effective dose was calculated to be 66 {mu}Sv y{sup -1} from these results. The results presented in this study are compared with other parts of Turkey. Radiological maps of the Trabzon province were composed using the results obtained from the study. - Highlights: {yields} {yields}The study highlights activity concentrations of {sup 238}U, {sup 232}Th, {sup 40}K and {sup 137}Cs in soil. {yields} The absorbed gamma dose in air and the mean annual effective dose were calculated. {yields} The calculated results compared with outdoor in situ gamma dose measurements. {yields} Radiological maps of the Trabzon province were created using ArcGIS applications. {yields} The results will be valuable data for future estimations of radioactive pollution.

  2. Bacteriological Monitoring of Radiology Room Apparatus in the Department of Radiological Technology and Contamination on Hands of Radiological Technologists

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Seon Chil [Dept. of Radiologic Technology, Daegu Health College, Daegu (Korea, Republic of)

    2008-12-15

    Distribution of microorganisms were examined for the bucky tables in the radiology rooms of the department of radiological technology, the aprons, handles of various apparatus, handles of mobile radiological apparatus, and hands of the radiological technologists. As a result, relatively larger amounts of bacteria were found on the handles of the mobile radiological apparatus and the aprons. Among the isolated bacteria, Acinetobacter baumanni (7.3%), Klebsiella pneumoniae (6.7%), Staphylococcus aureus (3.9%), Serratia liquefaciens (1.7%), Enterobacter cloaceae (0.6%), Providenica rettgeri (0.6%) are known as the cause of nosocomial infection (hospital acquired infection). In addition, similar colonies were also found on the hands of the radiological technologists such as microorganisms of Klebsiella pneumoniae (8.4%), Staphylococcus aureus (6.6%), Yersinia enterocolotica (5.4%), Acinetobacter baumanni (4.2%), Enterobacter cloaceae (2.4%), Serratia liquefaciens (1.8%), Yersinia pseuotuberculosis (18%), Enterobacter sakazakii (1.2%), and Escherichia coli (0.6%). In particular, this result indicates clinical significance since Staphylococcus aureus and Escherichia coli show strong pathogenicity. Therefore, a continuous education is essential for the radiological technologists to prevent the nosocomial infection.

  3. Study of plutonium and americium contamination in agricultural area, radiological impact caused by consumption of vegetables of this area; Estudio de la contaminacion de plutonio y americio en un area agricola, impacto radiologico ocasionado por consumo de vegetales contaminados

    Energy Technology Data Exchange (ETDEWEB)

    Espinosa, Assuncion; Aragon, Antonio; Cruz, Berta de la; Gutierrez, Jose [Centro de Investigaciones Energeticas Medioambientales y Tecnologicas, Madrid (Spain). Dept. de Impacto Ambiental de la Energia

    2001-07-01

    The transuranide concentration has been studied for 30 years in vegetable production, crops in wide extensions and in private-owned farms, all of them situated within the Pu-contaminated area of Palomares due to an air accident in 1966. Based on these studies, a preliminary estimation of the radiological risk caused by the consumption of these products by the inhabitants was possible. The results show that most of the fruits present a surface contamination, which disappears or is significantly reduced when they are washed. The contamination present in edible parts of the vegetables, as well as the contamination of other products included in the diet, has facilitated the estimation of the effective dose for ingestion and the committed effective dose for 50 years for the inhabitants. The main conclusions are: those plants, whose cultivation period is less than a year, present a low level of contamination; the green parts of the plants have a higher contamination than the fruits; the Pu soil to plant transfer factor is very low. In general, those plants that have remained in the contaminated land for several years present a high contamination level; the ingestion of products from Palomares does not represent an important risk for the population, even in the case that the products were totally consumed by a critical group.( author)

  4. Patient satisfaction: what works in radiology.

    Science.gov (United States)

    Lester, B

    2001-01-01

    In recent years, patient satisfaction in healthcare has been criticized as much as poor customer satisfaction in other industries. Many times, the financial problems that exist are used as an excuse for poor patient satisfaction. This excuse can never justify treating a patient rudely or with disrespect. Patients are the essence of why we exist in radiology. Their increasing scrutiny--over the care they receive and the services we provide--will significantly impact the future of healthcare in the United States. Healthcare employees need to focus on teamwork and respect for patients as well as co-workers as foundations for improving patient satisfaction. True leaders will set the mood of the healthcare facility by "practicing what they preach." Some basic rules to follow to improve customer satisfaction include listening to employees, recognizing exceptional behavior, correcting negative behavior, communicating expectations to employees and listening to patients' needs and concerns. The secret to successful patient satisfaction is not only exceeding the expectations of our patients, but also exceeding the expectations of our employees who take care of patients.

  5. 76 FR 80366 - Availability of an Environmental Assessment (EA) and Finding of No Significant Impact (FONSI)

    Science.gov (United States)

    2011-12-23

    ... significant environmental impacts are anticipated from the issuance of the 2012 Construction General Permit... significant environmental impacts are anticipated from the issuance of the 2012 Construction General Permit... that no significant environmental impacts are anticipated from the issuance of the 2012...

  6. Anticipation - the underlying science of sport. Report on research in progress

    Science.gov (United States)

    Nadin, Mihai

    2015-05-01

    Professional sport practitioners intuitively acknowledge anticipation. Sports researchers sometimes discuss it. Still, there is little data-based evidence to characterize the role anticipation plays in human performance. Even less documented is the distinction between reaction and anticipation. This text presents the real-time quantification environment developed as an AnticipationScope™. Based on a very large data harvest from this experimental set-up, hypotheses regarding the role of anticipation in sport are advanced. The conclusion is that while preparation and reaction play an important role in sports performance, in the final analysis anticipation distinguishes the professional from other sport practitioners. Work in progress is presented with the aim of engaging the community of researchers in the design of alternative methods for quantifying anticipation and for processing the data. Generalization from sport to human performance is one of the intended outcomes of this research.

  7. Using the model release ARTM associated with resources for simulation geoprocessing radiological environmental impact of atmospheric emissions from a research reactor; Utilizacao do modelo de dispersao ARTM associado a recursos de geoprocessamento para simulacao do impacto ambiental radiologico de emissoes atmosfericas de um reator de pesquisa

    Energy Technology Data Exchange (ETDEWEB)

    Alves, Simone Fonseca

    2013-08-01

    The knowledge of the dispersion of radionuclides emissions into the atmosphere arising from a nuclear reactor, in normal operation, is an important step in the process of the nuclear and environmental assessment study. These processes require an assessment study of the radiological environmental impact. However, to estimate this impact a simulation of the transport mechanisms and deposition of pollutants released into the atmosphere is required. The present study aimed at the application of the dispersion model ARTM (Atmospheric Radionuclide Transport Model), together with the powerful tools of the GIS (Geographic Information System) for the environmental impact assessment of a radiological nuclear reactor under typically routine and conditions. Therefore some important information from the national project for a research reactor known as Brazilian Multipurpose Reactor (RMB) was considered. The information of the atmospheric emissions of the reactor, needed for the simulation of this project, was based on data of the Open Pool Australian Light Water (OPAL).Other important data that had to be collected and analyzed were the source term, the topography, the meteorology and the environmental data. The radionuclides analyzed as pollutants were {sup 41}Ar; {sup 140}Ba; {sup 51}Cr; {sup 137}Cs; {sup 131}I; {sup 133}I; {sup 85m} Kr; {sup 87}Kr; {sup 88}Kr; {sup 140}La; {sup 133}Xe; {sup 135}Xe; {sup 3}H; {sup 90}Sr. The model was run for two chronological scenarios according to their meteorological data for the years 2009 and 2010, respectively. The adoption of GIS techniques was relevant in planning, data preprocessing and in the post-processing of results as well. After pre-processing, the input data were processed by the ARTM dispersion model. Maps, charts, and tables were then produced and evaluated. According to the simulated and evaluated scenarios it could be concluded that exposure pathways that mostly contributed to the dose for individual public were {sup 41}Ar

  8. Overcoming the Educational Time Warp: Anticipating a Different Future

    Directory of Open Access Journals (Sweden)

    Garry Jacobs

    2015-10-01

    Full Text Available Education abridges the time required for individual and social progress by preserving and propagating the essence of human experience. It delivers to youth the accumulated knowledge of countless past generations in an organized and abridged form, so that future generations can start off with all the capacities acquired by their predecessors. However, today education confronts a serious dilemma. We are living in an educational time warp. There is a growing gap between contemporary human experience and what is taught in our educational system and that gap is widening rapidly with each passing year. Today humanity confronts challenges of unprecedented scope, magnitude and intensity. The incremental development of educational content and pedagogy in recent decades has not kept with the ever-accelerating pace of technological and social evolution. Education is also subject to a generational time warp resulting from the fact that many of today’s teachers were educated decades ago during very different times and based on different values and perspectives. The challenge of preparing youth for the future is exasperated by the fact that the future for which we are educating youth does not yet exist and to a large extent is unknown or unknowable. The resulting gap between the content of education and societal needs inhibits our capacity to anticipate and effectively respond to social problems. All these factors argue for a major reorientation of educational content and pedagogy from transmission of acquired knowledge based on past experience to development of the knowledge, skills and capacities of personality needed in a future we cannot clearly envision. We may not be able to anticipate the precise nature of the future, but we can provide an education based on the understanding that it will be very different from the present. In terms of content, the emphasis needs to shift from facts regarding the actual state of affairs in the past, present and

  9. Post Brexit: challenges and opportunities for radiology beyond the European Union.

    Science.gov (United States)

    Piorkowska, Marta; Goh, Vicky; Booth, Thomas C

    2017-04-01

    We aimed to review the challenges and opportunities that radiology may face once the UK leaves the European Union (EU). Even before the exit negotiations commence, uncertainty over future policies and funding within the UK may influence the National Health Service (NHS). We discuss the potential impact that financial, regulatory and social changes may have on healthcare, and radiology in particular. Current difficulties in recruitment and retention of radiologists and the challenges that Brexit present are considered. Uncertainty over the new immigration regulations and their impact on the NHS workforce is addressed. Challenges also apply to UK research, which has greatly benefited from EU funding and the free movement of staff. Appreciating the problems as well as the opportunities that Brexit presents will help prepare radiology in the UK for the next decade.

  10. Evidence-Based Radiology (EBR

    Directory of Open Access Journals (Sweden)

    Mansoor Fatehi

    2009-01-01

    Full Text Available   "nRecent increase in scientific advancements has led to inability to cover many scientific data and remain “up-to-date”. Nowadays doubling time of scientific data production is remarkably reduced, so that there is no adequate time to find this information and it seems inevitable to use resources which periodically assess most published papers or web-based data in that particular field to finally provide evidence-based knowledge, namely “Evidence-Based Medicine (EBM” in medical sciences. EBM is the systematic, scientific and explicit use of current best evidence in making decisions about the care of individual patients. Medical practice is largely based on clinical anecdotes, uncontrolled investigations and expert opinion. In radiology, the situation is especially problematic. "nRadiologists require to be able to evaluate studies in the literature, i.e., how reliable is this information and does it apply to patients in the radiologist’s practice? "nWe may find that our textbooks are out of date, guidelines are non-specific and there are conflicting "nor unreliable reports in the literature. Expert opinions vary from centre to centre. "nWhen we go to the literature ourselves, the first problem we encounter is the volume of literature being published and the next (at least for most of us is lack of training in how to separate good studies from weak ones. Evidence-based radiology (EBR can be a solution. "nThere are 5 steps in applying an approach as a solution: "n1. Ask - Information needs relevant to individual patients are converted into ‘answerable’ or ‘focused’ questions. "n2. Search - A comprehensive literature search is performed to find the best evidence to help answer these questions. "n3. Appraise - The evidence must then be critically appraised, in an explicit and structured manner, in order to establish its validity, reliability and usefulness in practice. "n4. Apply - The results of this critical appraisal are then

  11. Radiological assessment of steam generator repair and replacement

    Energy Technology Data Exchange (ETDEWEB)

    Parkhurst, M.A.; Rathbun, L.A.; Murphy, D.W.

    1983-12-01

    Previous analyses of the radiological impact of removing and replacing corroded steam generators have been updated based on experience at Surry Units 1 and 2 and Turkey Point Units 3 and 4. The sleeving repairs of degraded tubes at San Onofre Unit 1, Point Beach Unit 2, and R.E. Ginna are also analyzed. Actual occupational doses incurred during application of the various technologies used in repairs have been included, along with radioactive waste quantities and constituents. Considerable progress has been made in improving radiation protection and reducing worker dose by the development of remotely controlled equipment and the implementation of dose reduction strategies that have been successful in previous repair operations.

  12. Quality control in dental diagnostic radiology : anomalous in the use of radiological equipment; Control de Calidad en radiologia dental intraoral: anomalias en el funcionamiento de los equipos radiologicos

    Energy Technology Data Exchange (ETDEWEB)

    Alcaraz, M.; Martinez-Beneyto, Y.; Jodar, S.; Velasco, E.; Garcia-Vera, M. C.

    2004-07-01

    7,176 official quality control reports on dental diagnostic radiology were studied, relating to dental clinics located in 37 Spanish provinces covering 16 different autonomous Regions. The reports were issued as a result of the entry into force of Royal Decree 2071/1995 on quality control in General Diagnostic Radiology facilities, this Royal Decree was replaced by R. D. 1976/1999. The reports were writen by the UTPR (Technical Unit of Radiological Protection) Agsigma S. A. L., a company approved by the Nuclear Safety Council, and they correspond with the official reports issued during 1996-2001. This meants that a 5-year period has been monitored in order to observe the impacts of the establlishment of this legislation on quality control in intraoral dental diagnostic radiology facilities. The results show that 72.79% of the reports checked in 2001 would comply with the European Union's official recommendation (70 kVp, 8 mA> 1.5 mm of Al and 20 cm collimator length). Significant alterations have detected in a third (30.59%) of the radiological equipment. (Author) 36 refs.

  13. Blunted cardiovascular reactivity in dysphoria during reward and punishment anticipation.

    Science.gov (United States)

    Franzen, Jessica; Brinkmann, Kerstin

    2015-03-01

    Hyposensitivity to reward in depression and dysphoria has been found in behavioral and neuroimaging studies. For punishment responsiveness, some studies showed hyposensitivity to punishment while other studies demonstrated hypersensitivity. Only few studies have addressed the motivational question as to whether depressed individuals mobilize less effort in anticipation of a positive or a negative consequence. The present study aimed at investigating reward and punishment responsiveness in subclinical depression from an effort mobilization perspective. Working on a recognition memory task, one third of the participants could earn small amounts of money, one third could lose small amounts of money, and one third could neither earn nor lose money. Effort mobilization was operationalized as participants' cardiovascular reactivity during task performance. As expected, reactivity of cardiac pre-ejection period and heart rate was higher in both incentive conditions compared to the neutral condition for nondysphorics, while it was blunted across conditions for dysphorics. Moreover, the present study found that dysphorics show an altered behavioral response to punishment. These findings thus show that dysphorics present a reduced motivation to obtain a reward or to avoid a punishment in terms of reduced effort-related cardiac reactivity.

  14. Current and anticipated uses of thermal hydraulic codes in Korea

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Kyung-Doo; Chang, Won-Pyo [Korea Atomic Energy Research Institute, Taejon (Korea, Republic of)

    1997-07-01

    In Korea, the current uses of thermal hydraulic codes are categorized into 3 areas. The first application is in designing both nuclear fuel and NSSS. The codes have usually been introduced based on the technology transfer programs agreed between KAERI and the foreign vendors. Another area is in the supporting of the plant operations and licensing by the utility. The third category is research purposes. In this area assessments and some applications to the safety issue resolutions are major activities using the best estimate thermal hydraulic codes such as RELAP5/MOD3 and CATHARE2. Recently KEPCO plans to couple thermal hydraulic codes with a neutronics code for the design of the evolutionary type reactor by 2004. KAERI also plans to develop its own best estimate thermal hydraulic code, however, application range is different from KEPCO developing code. Considering these activities, it is anticipated that use of the best estimate hydraulic analysis code developed in Korea may be possible in the area of safety evaluation within 10 years.

  15. Isolating neural correlates of the pacemaker for food anticipation.

    Directory of Open Access Journals (Sweden)

    Ian David Blum

    Full Text Available Mice fed a single daily meal at intervals within the circadian range exhibit food anticipatory activity. Previous investigations strongly suggest that this behaviour is regulated by a circadian pacemaker entrained to the timing of fasting/refeeding. The neural correlate(s of this pacemaker, the food entrainable oscillator (FEO, whether found in a neural network or a single locus, remain unknown. This study used a canonical property of circadian pacemakers, the ability to continue oscillating after removal of the entraining stimulus, to isolate activation within the neural correlates of food entrainable oscillator from all other mechanisms driving food anticipatory activity. It was hypothesized that continued anticipatory activation of central nuclei, after restricted feeding and a return to ad libitum feeding, would elucidate a neural representation of the signaling circuits responsible for the timekeeping component of the food entrainable oscillator. Animals were entrained to a temporally constrained meal then placed back on ad libitum feeding for several days until food anticipatory activity was abolished. Activation of nuclei throughout the brain was quantified using stereological analysis of c-FOS expressing cells and compared against both ad libitum fed and food entrained controls. Several hypothalamic and brainstem nuclei remained activated at the previous time of food anticipation, implicating them in the timekeeping mechanism necessary to track previous meal presentation. This study also provides a proof of concept for an experimental paradigm useful to further investigate the anatomical and molecular substrates of the FEO.

  16. Early effects of reward anticipation are modulated by dopaminergic stimulation.

    Directory of Open Access Journals (Sweden)

    Thore Apitz

    Full Text Available The abilities to predict future rewards and assess the value of reward delivery are crucial aspects of adaptive behavior. While the mesolimbic system, including dopaminergic midbrain, ventral striatum and prefrontal cortex have long been associated with reward processing, recent studies also indicate a prominent role of early visual brain regions. However, the precise underlying neural mechanisms still remain unclear. To address this issue, we presented participants with visual cues predicting rewards of high and low magnitudes and probability (2 × 2 factorial design, while neural activity was scanned using magnetoencephalography. Importantly, one group of participants received 150 mg of the dopamine precursor levodopa prior to the experiment, while another group received a placebo. For the placebo group, neural signals of reward probability (but not magnitude emerged at ∼ 100 ms after cue presentation at occipital sensors in the event-related magnetic fields. Importantly, these probability signals were absent in the levodopa group indicating a close link. Moreover, levodopa administration reduced oscillatory power in the high (20-30 Hz and low (13-20 Hz beta band during both reward anticipation and delivery. Taken together, our findings indicate that visual brain regions are involved in coding prospective reward probability but not magnitude and that these effects are modulated by dopamine.

  17. [Circadian regulation of sleep-wake cycles and food anticipation].

    Science.gov (United States)

    Nakamura, Wataru

    2012-06-01

    The circadian clock is crucial for efficient physiological function and drives the temporal regulation of the sleep-wake state, metabolism, and behavior. The timing of food intake and the accompanying behavior are both controlled by the internal clock, which is located in the suprachiasmatic nucleus (SCN) of the anterior hypothalamus. The SCN is considered as the master clock because the circadian rhythms for most physiological and behavioral processes are terminated after SCN ablation. The molecular framework of circadian oscillations can be best studied in the SCN. A "core" set of circadian clock genes form autoregulatory transcription-translation feedback loops that are believed to drive daily rhythms in individual cells. These clock genes are expressed in a circadian manner not only in the SCN but also in other parts of the brain and many peripheral tissues. Mammals can anticipate a predictable daily mealtime through entrainment of circadian oscillators. Because the restriction of food availability to a specific time of the day elicits anticipatory behavior even after ablation of the SCN, such behaviour is assumed to be controlled by another circadian oscillator. In this paper, we have (1) reviewed studies involving the identification of the circadian clock and (2) aimed to elucidate the complex mechanism underlying feeding-associated rhythms by achieving a deep understanding of the circadian phenotypes of the SCN.

  18. Impact

    NARCIS (Netherlands)

    Lohse, Detlef; Bergmann, Raymond; Mikkelsen, Rene; Zeilstra, Christiaan; Meer, van der Devaraj; Versluis, Michel

    2004-01-01

    A lot of information on impacts of solid bodies on planets has been extracted from remote observations of impact craters on planetary surfaces; experiments however with large enough impact energies as compared to the energy stored in the ground are difficult. We approach this problem by downscaled e

  19. Complications of pneumoconiosis: Radiologic overview

    Energy Technology Data Exchange (ETDEWEB)

    Jun, Jae Sup [Department of Radiology, Seoul St. Mary' s Hospital, College of Medicine, The Catholic University of Korea (Korea, Republic of); Jung, Jung Im, E-mail: jijung@catholic.ac.kr [Department of Radiology, Seoul St. Mary' s Hospital, College of Medicine, The Catholic University of Korea (Korea, Republic of); Kim, Hyo Rim [Department of Radiology, Yeouido St. Mary' s Hospital, College of Medicine, The Catholic University of Korea (Korea, Republic of); Ahn, Myeong Im; Han, Dae Hee [Department of Radiology, Seoul St. Mary' s Hospital, College of Medicine, The Catholic University of Korea (Korea, Republic of); Ko, Jeong Min [Department of Radiology, St. Vincent Hospital, College of Medicine, The Catholic University of Korea (Korea, Republic of); Park, Seog Hee; Lee, Hae Giu [Department of Radiology, Seoul St. Mary' s Hospital, College of Medicine, The Catholic University of Korea (Korea, Republic of); Arakawa, Hiroaki [Department of Radiology, Dokkyo University School of Medicine (Japan); Koo, Jung-Wan [Department of Occupational and Environmental Medicine, Seoul St. Mary' s Hospital, The Catholic University of Korea (Korea, Republic of)

    2013-10-01

    A wide spectrum of pulmonary complications occurs in patients with pneumoconiosis. Those complications include chronic obstructive pulmonary disease, hemoptysis, pneumothorax, pleural disease, tuberculosis, autoimmune disease, anthracofibrosis, chronic interstitial pneumonia, and malignancy. Generally, imaging workup starts with plain chest radiography. However, sometimes, plain radiography has limited role in the diagnosis of pulmonary complications of pneumoconiosis because of overlapping pneumoconiotic infiltration. Computed tomography (CT), ultrasonography (US), and magnetic resonance imaging (MRI) are potentially helpful for the detection of pulmonary complications in patients with pneumoconiosis. CT, with its excellent contrast resolution, is more sensitive and specific method than plain radiograph in the evaluation of pulmonary abnormalities. CT is useful in detecting lung parenchymal abnormalities caused by infection, anthracofibrosis, and chronic interstitial pneumonia. Also, CT is valuable in distinguishing localized pneumothorax from bullae and aiding the identification of multiloculated effusions. US can be used in detection of complicated pleural effusions and guidance of the thoracentesis procedure. MRI is useful for differentiating between progressive massive fibrosis and lung cancer. Radiologists need to be familiar with the radiologic and clinical manifestations of, as well as diagnostic approaches to, complications associated with pneumoconiosis. Knowledge of the various imaging features of pulmonary complications of pneumoconiosis can enhance early diagnosis and improve the chance to cure.

  20. Multilingual retrieval of radiology images.

    Science.gov (United States)

    Kahn, Charles E

    2009-01-01

    The multilingual search engine ARRS GoldMiner Global was created to facilitate broad international access to a richly indexed collection of more than 200,000 radiologic images. Images are indexed according to key-words and medical concepts that appear in the unstructured text of their English-language image captions. GoldMiner Global exploits the Unicode standard, which allows the accurate representation of characters and ideographs from virtually any language and which supports both left-to-right and right-to-left text directions. The user interface supports queries in Arabic, Chinese, French, German, Italian, Japanese, Korean, Portuguese, Russian, or Spanish. GoldMiner Global incorporates an interface to the United States National Library of Medicine that translates queries into English-language Medical Subject Headings (MeSH) terms. The translated MeSH terms are then used to search the image index and retrieve relevant images. Explanatory text, pull-down menu choices, and navigational guides are displayed in the selected language; search results are displayed in English. GoldMiner Global is freely available on the World Wide Web.

  1. Interventional radiology in pediatric oncology

    Energy Technology Data Exchange (ETDEWEB)

    Hoffer, Fredric A. [Division of Diagnostic Imaging, Department of Radiological Sciences, St. Jude Children' s Research Hospital, 332 N. Lauderdale St., Memphis, TN 38105 (United States)]. E-mail: fred.hoffer@stjude.org

    2005-01-01

    There are many radiological interventions necessary for pediatric oncology patients, some of which may be covered in other articles in this publication. I will discuss a number of interventions including percutaneous biopsy for solid tumor and hematological malignancy diagnosis or recurrence, for the diagnosis of graft versus host disease after stem cell or bone marrow transplantation, and for the diagnosis of complications of immunosuppression such as invasive pulmonary aspergillosis. In the past, tumor localization techniques have been necessary to biopsy or resect small lesions. However improved guidance techniques have allowed for more precise biopsy and the use of thermal ablation instead of excision for local tumor control. A percutaneously placed radio frequency, microwave, laser or cryogen probe can ablate the primary and metastatic tumors of the liver, lung, bone, kidney and other structures in children. This is an alternative treatment for the local control of tumors that may not be amenable to surgery, chemotherapy or radiotherapy. I will also describe how chemoembolization can be used to treat primary or metastatic tumors of the liver that have failed other therapies. This treatment delivers chemotherapy in the hepatic artery infused with emboli to increase the dwell time and concentration of the agents.

  2. Diagnostic errors in pediatric radiology

    Energy Technology Data Exchange (ETDEWEB)

    Taylor, George A.; Voss, Stephan D. [Children' s Hospital Boston, Department of Radiology, Harvard Medical School, Boston, MA (United States); Melvin, Patrice R. [Children' s Hospital Boston, The Program for Patient Safety and Quality, Boston, MA (United States); Graham, Dionne A. [Children' s Hospital Boston, The Program for Patient Safety and Quality, Boston, MA (United States); Harvard Medical School, The Department of Pediatrics, Boston, MA (United States)

    2011-03-15

    Little information is known about the frequency, types and causes of diagnostic errors in imaging children. Our goals were to describe the patterns and potential etiologies of diagnostic error in our subspecialty. We reviewed 265 cases with clinically significant diagnostic errors identified during a 10-year period. Errors were defined as a diagnosis that was delayed, wrong or missed; they were classified as perceptual, cognitive, system-related or unavoidable; and they were evaluated by imaging modality and level of training of the physician involved. We identified 484 specific errors in the 265 cases reviewed (mean:1.8 errors/case). Most discrepancies involved staff (45.5%). Two hundred fifty-eight individual cognitive errors were identified in 151 cases (mean = 1.7 errors/case). Of these, 83 cases (55%) had additional perceptual or system-related errors. One hundred sixty-five perceptual errors were identified in 165 cases. Of these, 68 cases (41%) also had cognitive or system-related errors. Fifty-four system-related errors were identified in 46 cases (mean = 1.2 errors/case) of which all were multi-factorial. Seven cases were unavoidable. Our study defines a taxonomy of diagnostic errors in a large academic pediatric radiology practice and suggests that most are multi-factorial in etiology. Further study is needed to define effective strategies for improvement. (orig.)

  3. CLINICAL, RADIOLOGICAL AND GENETIC ASPECTS OF LEUKODYSTROPHIES

    NARCIS (Netherlands)

    Laszlo, A.; Elpeleg, On; Horvath, K.; Jakobs, C.; Kobor, J.; Gal, A.; Barsi, P.; Kelemen, A.; Saracz, J.; Svekus, A.; Tegzes, A.; Voeroes, E.

    2010-01-01

    The authors summarize the pathomechanism of the myelination process, the clinical, radiological and the genetical aspects of the leukodystrophies, as in 18q deletion syndrome, adrenoleukodysrtophy, metachromatic leukodystrophy, Pelizaeus-Merzbacher leukodystrophy, Alexander disease and olivo-ponto-c

  4. How to Read Your Radiology Report

    Science.gov (United States)

    ... pelvis. Impression In the impression section, the radiologist combines the findings, patient clinical history and indication for ... radiology report. View full size with caption Related Articles and Media What does a radiologist do? Sponsored ...

  5. Radiological safety training for uranium facilities

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-02-01

    This handbook contains recommended training materials consistent with DOE standardized core radiological training material. These materials consist of a program management guide, instructor`s guide, student guide, and overhead transparencies.

  6. Radiological dose assessment for vault storage concepts

    Energy Technology Data Exchange (ETDEWEB)

    Richard, R.F.

    1997-02-25

    This radiological dose assessment presents neutron and photon dose rates in support of project W-460. Dose rates are provided for a single 3013 container, the ``infloor`` storage vault concept, and the ``cubicle`` storage vault concept.

  7. Diagnostic radiology in paediatric palliative care

    Energy Technology Data Exchange (ETDEWEB)

    Patel, Preena; Koh, Michelle; Carr, Lucinda; McHugh, Kieran [Great Ormond Street Hospital, Radiology Department, London (United Kingdom)

    2014-01-15

    Palliative care is an expanding specialty within paediatrics, which has attracted little attention in the paediatric radiological literature. Paediatric patients under a palliative care team will have numerous radiological tests which we traditionally categorise under organ systems rather than under the umbrella of palliative medicine. The prevalence of children with life-limiting illness is significant. It has been estimated to be one per thousand, and this may be an underestimate. In this review, we will focus on our experience at one institution, where radiology has proven to be an invaluable partner to palliative care. We will discuss examples of conditions commonly referred to our palliative care team and delineate the crucial role of diagnostic radiology in determining treatment options. (orig.)

  8. Corporate social responsibility of future radiology professionals.

    Science.gov (United States)

    Collins, Sandra K; Collins, Kevin S

    2011-01-01

    Plagued by difficult economic times, many radiology managers may find themselves faced with ethical dilemmas surrounding ongoing organizational pressures to maintain high levels of productivity with restricted resources. This often times tests the level of moral resilience and corporate social consciousness of even the most experienced radiology professionals. A study was conducted to determine what Corporate Social Responsibility (CSR) orientation and viewpoint future radiology professionals may have. The results of the study indicate that these study participants may initially consider patient care more important than profit maximization. Study results indicate that these specific future radiology professionals will not need laws, legal sanctions, and intensified rules to force them to act ethically. However,they may need ongoing training as to the necessity of profit maximization if they seek the highest quality of care possible for their patients.

  9. Role of Radiology in Forensic Dentistry

    Directory of Open Access Journals (Sweden)

    T Chandrasekhar

    2011-01-01

    Full Text Available Forensic radiology is a specialized area of medical imaging utilizing radiological techniques to assist physicians and pathologists in matter pertaining to the law. Postmortem dental radiographs are the most consistent part of the antemortem records that can be transmitted during the forensic examination procedures. Pathologists regularly use radiographic images during the course of autopsy to assist them in identification of foreign bodies or determination of death. Forensic radiology can be used in suspicious death or murder, in analysis of adverse medical events, solving legal matters, to detect child abuse, drug trafficking, body identification and disease identification. Using the possibilities of radiology, special characteristics of the internal structures of the dentomaxillofacial region can be revealed. We can also detect endodontic treatments, healing extraction sockets, implants or even tooth colored restoration. Therefore, we can give answers to problems dealing with identification procedures, mass disaster and dental age estimation.

  10. 42 CFR 482.26 - Condition of participation: Radiologic services.

    Science.gov (United States)

    2010-10-01

    ... radiologic services, particularly ionizing radiology procedures, must be free from hazards for patients and... qualified full-time, part-time, or consulting radiologist must supervise the ionizing radiology services and... osteopathy who is qualified by education and experience in radiology. (2) Only personnel designated...

  11. Regulating emotion in the context of interpersonal decisions: The role of anticipated pride and regret

    Directory of Open Access Journals (Sweden)

    Job eVan Der Schalk

    2012-11-01

    Full Text Available Recent theories about the relation between emotion and behavior hold that social behavior is influenced not only by the experience of emotion, but also by the anticipation of emotion. We argue that anticipating future emotional states is an emotion regulation strategy when it leads to a change in behavior. In the current studies we examined how construal of a fair or an unfair situation in terms of positive or negative anticipated emotions influences the fairness of subsequent behavior. We used the Ultimatum Bargaining Game--an experimental game in which participants divide a resource between themselves and another person--as a social situation that offers the opportunity to engage in fair and unfair behavior. In Study 1 we used an autobiographical recall task to manipulate anticipated emotions. Although the task did not influence anticipated emotions directly, results showed that anticipated pride about fair behavior increased levels of fairness, whereas anticipated pride about unfair behavior decreased levels of fairness. Similarly, anticipated regret about fair behavior decreased levels of fairness, whereas anticipated regret about unfair behavior increased levels of fairness. In Study 2 we replicated this pattern of findings, and found that participants who thought about their anticipated emotions (pride or regret in relation to unfair behavior behaved more fairly. We discuss these findings in relation to theories of emotion regulation and economic decision-making.

  12. Radiological interventions in malignant biliary obstruction

    Institute of Scientific and Technical Information of China (English)

    Kumble Seetharama Madhusudhan; Shivanand Gamanagatti; Deep Narayan Srivastava; Arun Kumar Gupta

    2016-01-01

    Malignant biliary obstruction is commonly caused by gall bladder carcinoma, cholangiocarcinoma and metastatic nodes. Percutaneous interventions play an important role in managing these patients. Biliary drainage, which forms the major bulk of radiological interventions, can be pal iative in inoperable patients or pre-operative to improve liver function prior to surgery. Other interventions include cholecystostomy and radiofrequency ablation. We present here the indications, contraindications, technique and complications of the radiological interventions performed in patients with malignant biliary obstruction.

  13. Radiologic Professionalism in Modern Health Care.

    Science.gov (United States)

    Hryhorczuk, Anastasia L; Hanneman, Kate; Eisenberg, Ronald L; Meyer, Elaine C; Brown, Stephen D

    2015-10-01

    Modern radiology is at the forefront of technological progress in medicine, a position that often places unique challenges on its professional character. This article uses "Medical Professionalism in the New Millennium: A Physician Charter," a document published in 2002 and endorsed by several major radiology organizations, as a lens for exploring professional challenges in modern radiology. The three main tenets of the Charter emphasize patient welfare, patient autonomy, and the reduction of disparities in health care distribution. This article reviews the ways in which modern technology and financial structures potentially create stressors on professionalism in radiology, while highlighting the opportunities they provide for radiologists seeking to fulfill the professional goals articulated in the Charter. Picture archiving and communication systems (PACS) and voice recognition systems have transformed the speed of radiology and enhanced the ability of radiologists to improve patient care but also have brought new tensions to the workplace. Although teleradiology may improve global access to radiologists, it may also promote the commoditization of radiology, which diminishes the professional stature of radiologists. Social media and patient portals provide radiologists with new forums for interacting with the public and patients, potentially promoting patient welfare. However, patient privacy and autonomy are important considerations. Finally, modern financial structures provide radiologists with both entrepreneurial opportunities as well as the temptation for unprofessional conduct. Each of these advances carries the potential for professional growth while testing the professional stature of radiology. By considering the risks and benefits of emerging technologies in the modern radiology world, radiologists can chart an ethical and professional future path.

  14. Current status of radiology in China

    Institute of Scientific and Technical Information of China (English)

    Meng Su Zeng; Kang Rong Zhou; Zhi Yong Zhang; Wei Jun Peng; Fu Hua Yang; Jiang Lin; Jun Yang; Xin Ye Han

    2000-01-01

    @@INTRODUCTION Radiology has been greatly advanced in China since its founding in 1949 and has been developed faster and further more since China adopted the policy of socioeconomic reform in 1978. It plays an increasingly important role in the medical health care and treatment in the country and has reached the world′s advanced level in certain fields. We now briefly review the history of China′s radiology so as to give a clear picture of its development.

  15. A digital library of radiology images.

    Science.gov (United States)

    Kahn, Charles E

    2006-01-01

    A web-based virtual library of peer-reviewed radiological images was created for use in education and clinical decision support. Images were obtained from open-access content of five online radiology journals and one e-learning web site. Figure captions were indexed by Medical Subject Heading (MeSH) codes, imaging modality, and patient age and sex. This digital library provides a new, valuable online resource.

  16. A NATO exercise on radiological sampling.

    Science.gov (United States)

    Haslip, Dean S; Mercier, J R

    2004-11-01

    The North Atlantic Treaty Organization (NATO) has held its first-ever large-scale radiological exercise employing unsealed radioactive sources. The objective of the exercise was to validate NATO protocols on radiological sampling and surveying. However, the exercise also proved to be a valuable training opportunity and was highly instructive to all involved. This paper highlights the lessons learned from this exercise, particularly in the areas of radiation survey equipment and techniques, sampling techniques, and field measurements.

  17. Radiological Worker II Training, Course 20301 (Live), Course 12909 (Test)

    Energy Technology Data Exchange (ETDEWEB)

    Harris, Jimmy D. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2017-01-13

    Radiological worker training is the basic building block for any additional radiological training you may receive. Upon completing radiological worker training, you will have the basic knowledge needed to work safely, using proper radiological practices, in areas where radiological hazards exist. You will also have a better understanding of the hazards and responsibilities associated with radiological work to help prevent the carelessness that can occur when working continually with or around radioactive material. This course does not qualify you for any specific radiological work. You may be required to take additional training at individual facilities to address facility- and job-specific hazards and procedures.

  18. Assessment of the radiological control at the IPEN radioisotope production facility

    Energy Technology Data Exchange (ETDEWEB)

    Carneiro, J.C.G.G.; Sanches, M.P.; Rodrigues, D.L.; Campos, D.; Nogueira, P.R.; Damatto, S.R.; Pecequilo, B.R.S. [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil)

    2015-07-01

    The main objective of this work is to evaluate the 2013 annual radiological control results in the radiopharmaceuticals areas of the Nuclear and Energy Research Institute, IPEN/SP, Brazil and the environmental radiological impact, resulting from the practices there performed. The current evaluation was performed through the analysis of the results obtained from occupational and environmental monitoring with air samplers and TL dosimeters. All monitoring results were compared with the limits established by national standards. The radionuclides detected by air sampling (in activated carbon cartridges and filter paper) at the workplace during radioisotope production were {sup 131}I, {sup 99m}Tc and {sup 99}Mo, with activities concentrations values below the annual limits values. For the radioactive gaseous releases (Bq/m{sup 3} ), the activities concentrations also remained below the maximum admissible values, excepting to {sup 125}I release due to an unusual event occurred in a researcher laboratory, but the radiological impact to environmental was no significant. The occupational monitoring assessment was confirmed by the Environmental Radiological Monitoring Program results with air samplers and TL dosimeters. The mean annual background radiation at IPEN in 2013, according to the Environmental Radiological Monitoring Program results was 1.06 mSv. y{sup -1} , below the ICRP 103 recommended limit of 20 mSv.y{sup -1} for workers. (author)

  19. Assessment of the radiological control at the IPEN radioisotope production facility

    Energy Technology Data Exchange (ETDEWEB)

    Carneiro, Janete C.G.G.; Sanches, Matias P.; Rodrigues, Demerval L.; Campos, Daniela; Nogueira, Paulo R.; Damato, Sandra R.; Pecequilo, Brigitte R., E-mail: janetegc@ipen.br [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil)

    2014-07-01

    The main objective of this work is to evaluate the 2013 annual radiological control results in the radiopharmaceuticals areas of the Instituto de Pesquisas Energeticas e Nucleares, IPEN/SP, and the environmental radiological impact, resulting from the practices there performed. The current evaluation was performed through the analysis of the results obtained from occupational and environmental monitoring with air samplers and TL dosimeters. All monitoring results were compared with the limits established by national standards. The radionuclides detected by air sampling (in charcoal and paper filters) at the workplace during radioisotope production were {sup 131}I, {sup 99m}Tc and {sup 99}Mo, with activities concentrations values below the annual limits values. For the radioactive gaseous releases (Bq/m{sup 3}), the activities concentrations also remained below the maximum permissible values, excepting to {sup 125}I release due to an unusual event occurred in a researcher laboratory, but the radiological impact to environmental was no significant. The occupational monitoring assessment was confirmed by the Environmental Radiological Monitoring Program results with air samplers and TL dosimeters. The mean annual background radiation at IPEN in 2013, according to the Environmental Radiological Monitoring Program results was 1.06 mSv. y{sup -1}, below the ICRP 103 recommended limit of 20 mSv.y{sup -1} for workers. (author)

  20. Objective structured clinical examination in radiology

    Directory of Open Access Journals (Sweden)

    Agarwal Anurag

    2010-01-01

    Full Text Available There is a growing need for introducing objective structured clinical examination (OSCE as a part of radiology practical examinations in India. OSCE is an established, reliable, and effective multistation test for the assessment of practical professional skills in an objective and a transparent manner. In India, it has been successfully initiated and implemented in specialties like pediatrics, ophthalmology, and otolaryngology. Each OSCE station needs to have a pre-agreed "key-list" that contains a list of objective steps prepared for uniformly assessing the tasks given to students. Broadly, OSCE stations are classified as "manned" or "unmanned" stations. These stations may include procedure or pictorial or theory stations with clinical oriented contents. This article is one of a series of measures to initiate OSCE in radiology; it analyzes the attributes of OSCE stations and outlines the steps for implementing OSCE. Furthermore, important issues like the advantages of OSCE, its limitations, a strengths, weaknesses, opportunities, and threats (SWOT analysis, and the timing of introduction of OSCE in radiology are also covered. The OSCE format in radiology and its stations needs to be validated, certified, and finalized before its use in examinations. This will need active participation and contribution from the academic radiology fraternity and inputs from faculty members of leading teaching institutions. Many workshops/meetings need to be conducted. Indeed, these collaborative measures will effectively sensitize universities, examiners, organizers, faculty, and students across India to OSCE and help successfully usher in this new format in radiology practical examinations.

  1. Objective structured clinical examination in radiology.

    Science.gov (United States)

    Agarwal, Anurag; Batra, Bipin; Sood, Ak; Ramakantan, Ravi; Bhargava, Satish K; Chidambaranathan, N; Indrajit, Ik

    2010-05-01

    There is a growing need for introducing objective structured clinical examination (OSCE) as a part of radiology practical examinations in India. OSCE is an established, reliable, and effective multistation test for the assessment of practical professional skills in an objective and a transparent manner. In India, it has been successfully initiated and implemented in specialties like pediatrics, ophthalmology, and otolaryngology. Each OSCE station needs to have a pre-agreed "key-list" that contains a list of objective steps prepared for uniformly assessing the tasks given to students. Broadly, OSCE stations are classified as "manned" or "unmanned" stations. These stations may include procedure or pictorial or theory stations with clinical oriented contents. This article is one of a series of measures to initiate OSCE in radiology; it analyzes the attributes of OSCE stations and outlines the steps for implementing OSCE. Furthermore, important issues like the advantages of OSCE, its limitations, a strengths, weaknesses, opportunities, and threats (SWOT) analysis, and the timing of introduction of OSCE in radiology are also covered. The OSCE format in radiology and its stations needs to be validated, certified, and finalized before its use in examinations. This will need active participation and contribution from the academic radiology fraternity and inputs from faculty members of leading teaching institutions. Many workshops/meetings need to be conducted. Indeed, these collaborative measures will effectively sensitize universities, examiners, organizers, faculty, and students across India to OSCE and help successfully usher in this new format in radiology practical examinations.

  2. Objective structured clinical examination in radiology

    Science.gov (United States)

    Agarwal, Anurag; Batra, Bipin; Sood, AK; Ramakantan, Ravi; Bhargava, Satish K; Chidambaranathan, N; Indrajit, IK

    2010-01-01

    There is a growing need for introducing objective structured clinical examination (OSCE) as a part of radiology practical examinations in India. OSCE is an established, reliable, and effective multistation test for the assessment of practical professional skills in an objective and a transparent manner. In India, it has been successfully initiated and implemented in specialties like pediatrics, ophthalmology, and otolaryngology. Each OSCE station needs to have a pre-agreed “key-list” that contains a list of objective steps prepared for uniformly assessing the tasks given to students. Broadly, OSCE stations are classified as “manned” or “unmanned” stations. These stations may include procedure or pictorial or theory stations with clinical oriented contents. This article is one of a series of measures to initiate OSCE in radiology; it analyzes the attributes of OSCE stations and outlines the steps for implementing OSCE. Furthermore, important issues like the advantages of OSCE, its limitations, a strengths, weaknesses, opportunities, and threats (SWOT) analysis, and the timing of introduction of OSCE in radiology are also covered. The OSCE format in radiology and its stations needs to be validated, certified, and finalized before its use in examinations. This will need active participation and contribution from the academic radiology fraternity and inputs from faculty members of leading teaching institutions. Many workshops/meetings need to be conducted. Indeed, these collaborative measures will effectively sensitize universities, examiners, organizers, faculty, and students across India to OSCE and help successfully usher in this new format in radiology practical examinations. PMID:20607015

  3. Anticipation in myotonic dystrophy type 1 parents with small CTG expansions.

    Science.gov (United States)

    Pratte, Annabelle; Prévost, Claude; Puymirat, Jack; Mathieu, Jean

    2015-04-01

    Myotonic dystrophy type 1 is the most common form of adult muscular dystrophy and has the world's highest prevalence in the Saguenay-Lac-St-Jean region, due to a founder effect. This autosomal dominant disorder results from an unstable CTG repeat expansion in DMPK. This region of Canada has had a family screening and predictive testing program for this disorder since 1988. Heterozygotes for small expansions (50-100 CTG repeats) can be asymptomatic or minimally affected. The aim of this study was to assess anticipation for these individuals. At the time of this study, the molecular data of 40 individuals and their 76 affected children were available. We compared 76 parent-child pairs. Most offspring (92.1%) had a larger number of repeats than their parent and the median number of repeats in the offspring was 325 (range, 57-2000). The number of CTG repeats was significantly greater when the mutation was transmitted by a father (median, 425 repeats; range, 70-2000), than when it was transmitted by a mother (median, 200 repeats; range, 57-1400). The majority (65.8%) of children also had a more severe phenotype than their parent but the sex of the parent had no significant influence on the severity of the child's phenotype. No congenital phenotype was observed. These results confirm that anticipation is present even when the parent is heterozygous for a small CTG expansion. The parental sex has an impact on the size of the repeat in the next generation, larger increases being transmitted by males with a small expansion.

  4. Self-Reevaluation and Anticipated Regret Did Not Change Attitude, Nor Perceived Distance in an Online Context

    Science.gov (United States)

    Crutzen, Rik; Cyr, Dianne; Taylor, Sarah E.; Lim, Eric; Ruiter, Robert A. C.

    2017-01-01

    Internet-delivered interventions can be effective in changing behavior, but more research is needed on effective elements of behavior change interventions. Moreover, although anonymity is one of the advantages of using an online context, it might also increase the perceived distance between the participant and the intervention. Hence, the current study investigated whether the behavior change methods of self-reevaluation and anticipated regret can be used to narrow the perceived distance and, ultimately, foster attitude change. A 3 × 3 factorial between-persons design with an additional control group was used (N = 466), resulting in a total of 10 conditions (n's ranging from 43 to 49). The first factor manipulated is assessment of self-image; cognitive, affective, or the combination of both. The second factor manipulated is behavioral focus; self-image with behavior, without behavior or both with and without behavior. Post-test measurements were conducted immediately after the manipulation. The key finding of the current study is that the behavior change methods of self-reevaluation and anticipated regret did not have an impact on changes in attitude toward oral contraceptive use, nor on the distance perceived by participants. Despite the null results, the current study contributes to the body of evidence regarding self-reevaluation and anticipated regret, which can be integrated in meta-regressions of experimental studies to advance behavior change theory. PMID:28123373

  5. THE TIME DOMAIN SPECTROSCOPIC SURVEY: VARIABLE SELECTION AND ANTICIPATED RESULTS

    Energy Technology Data Exchange (ETDEWEB)

    Morganson, Eric; Green, Paul J. [Harvard Smithsonian Center for Astrophysics, 60 Garden St, Cambridge, MA 02138 (United States); Anderson, Scott F.; Ruan, John J. [Department of Astronomy, University of Washington, Box 351580, Seattle, WA 98195 (United States); Myers, Adam D. [Department of Physics and Astronomy, University of Wyoming, Laramie, WY 82071 (United States); Eracleous, Michael; Brandt, William Nielsen [Department of Astronomy and Astrophysics, 525 Davey Laboratory, The Pennsylvania State University, University Park, PA 16802 (United States); Kelly, Brandon [Department of Physics, Broida Hall, University of California, Santa Barbara, CA 93106-9530 (United States); Badenes, Carlos [Department of Physics and Astronomy and Pittsburgh Particle Physics, Astrophysics and Cosmology Center (PITT PACC), University of Pittsburgh, 3941 O’Hara St, Pittsburgh, PA 15260 (United States); Bañados, Eduardo [Max-Planck-Institut für Astronomie, Königstuhl 17, D-69117 Heidelberg (Germany); Blanton, Michael R. [Center for Cosmology and Particle Physics, Department of Physics, New York University, 4 Washington Place, New York, NY 10003 (United States); Bershady, Matthew A. [Department of Astronomy, University of Wisconsin, 475 N. Charter St., Madison, WI 53706 (United States); Borissova, Jura [Instituto de Física y Astronomía, Universidad de Valparaíso, Av. Gran Bretaña 1111, Playa Ancha, Casilla 5030, and Millennium Institute of Astrophysics (MAS), Santiago (Chile); Burgett, William S. [GMTO Corp, Suite 300, 251 S. Lake Ave, Pasadena, CA 91101 (United States); Chambers, Kenneth, E-mail: emorganson@cfa.harvard.edu [Institute for Astronomy, University of Hawaii at Manoa, Honolulu, HI 96822 (United States); and others

    2015-06-20

    We present the selection algorithm and anticipated results for the Time Domain Spectroscopic Survey (TDSS). TDSS is an Sloan Digital Sky Survey (SDSS)-IV Extended Baryon Oscillation Spectroscopic Survey (eBOSS) subproject that will provide initial identification spectra of approximately 220,000 luminosity-variable objects (variable stars and active galactic nuclei across 7500 deg{sup 2} selected from a combination of SDSS and multi-epoch Pan-STARRS1 photometry. TDSS will be the largest spectroscopic survey to explicitly target variable objects, avoiding pre-selection on the basis of colors or detailed modeling of specific variability characteristics. Kernel Density Estimate analysis of our target population performed on SDSS Stripe 82 data suggests our target sample will be 95% pure (meaning 95% of objects we select have genuine luminosity variability of a few magnitudes or more). Our final spectroscopic sample will contain roughly 135,000 quasars and 85,000 stellar variables, approximately 4000 of which will be RR Lyrae stars which may be used as outer Milky Way probes. The variability-selected quasar population has a smoother redshift distribution than a color-selected sample, and variability measurements similar to those we develop here may be used to make more uniform quasar samples in large surveys. The stellar variable targets are distributed fairly uniformly across color space, indicating that TDSS will obtain spectra for a wide variety of stellar variables including pulsating variables, stars with significant chromospheric activity, cataclysmic variables, and eclipsing binaries. TDSS will serve as a pathfinder mission to identify and characterize the multitude of variable objects that will be detected photometrically in even larger variability surveys such as Large Synoptic Survey Telescope.

  6. Assessment of radiological protection systems among diagnostic radiology facilities in North East India.

    Science.gov (United States)

    Singh, Thokchom Dewan; Jayaraman, T; Arunkumar Sharma, B

    2017-03-01

    This study aims to assess the adequacy level of radiological protection systems available in the diagnostic radiology facilities located in three capital cities of North East (NE) India. It further attempts to understand, using a multi-disciplinary approach, how the safety codes/standards in diagnostic radiology framed by the Atomic Energy Regulatory Board (AERB) and the International Atomic Energy Agency (IAEA) to achieve adequate radiological protection in facilities, have been perceived, conceptualized, and applied accordingly in these facilities. About 30 diagnostic radiology facilities were randomly selected from three capitals of states in NE India; namely Imphal (Manipur), Shillong (Meghalaya) and Guwahati (Assam). A semi-structured questionnaire developed based on a multi-disciplinary approach was used for this study. It was observed that radiological practices undertaken in these facilities were not exactly in line with safety codes/standards in diagnostic radiology of the AERB and the IAEA. About 50% of the facilities had registered/licensed x-ray equipment with the AERB. More than 80% of the workers did not use radiation protective devices, although these devices were available in the facilities. About 85% of facilities had no institutional risk management system. About 70% of the facilities did not carry out periodic quality assurance testing of their x-ray equipment or surveys of radiation leakage around the x-ray room, and did not display radiation safety indicators in the x-ray rooms. Workers in these facilities exhibited low risk perception about the risks associated with these practices. The majority of diagnostic radiology facilities in NE India did not comply with the radiological safety codes/standards framed by the AERB and IAEA. The study found inadequate levels of radiological protection systems in the majority of facilities. This study suggests a need to establish firm measures that comply with the radiological safety codes/standards of the

  7. Interactive learning in oral and maxillofacial radiology

    Energy Technology Data Exchange (ETDEWEB)

    Ramesh, Aruna; Ganguly, Rumpa [Dept. of Diagnostic Sciences, Div. of Oral and Maxillofacial Radiology, Tufts University School of Dental Medicine, Boston (United States)

    2016-09-15

    The use of electronic tools in teaching is growing rapidly in all fields, and there are many options to choose from. We present one such platform, Learning Catalytics (LC) (Pearson, New York, NY, USA), which we utilized in our oral and maxillofacial radiology course for second-year dental students. The aim of our study was to assess the correlation between students' performance on course exams and self-assessment LC quizzes. The performance of 354 predoctoral dental students from 2 consecutive classes on the course exams and LC quizzes was assessed to identify correlations using the Spearman rank correlation test. The first class was given in-class LC quizzes that were graded for accuracy. The second class was given out-of-class quizzes that were treated as online self-assessment exercises. The grading in the self-assessment exercises was for participation only and not accuracy. All quizzes were scheduled 1-2 weeks before the course examinations. A positive but weak correlation was found between the overall quiz scores and exam scores when the two classes were combined (P<0.0001). A positive but weak correlation was likewise found between students' performance on exams and on in-class LC quizzes (class of 2016) (P<0.0001) as well as on exams and online LC quizzes (class of 2017) (P<0.0001). It is not just the introduction of technological tools that impacts learning, but also their use in enabling an interactive learning environment. The LC platform provides an excellent technological tool for enhancing learning by improving bidirectional communication in a learning environment.

  8. NASA's Corrosion Technology Laboratory at the Kennedy Space Center: Anticipating, Managing, and Preventing Corrosion

    Science.gov (United States)

    Calle, Luz Marina

    2015-01-01

    The marine environment at NASAs Kennedy Space Center (KSC) has been documented by ASM International (formerly American Society for Metals) as the most corrosive in North America. With the introduction of the Space Shuttle in 1981, the already highly corrosive conditions at the launch pads were rendered even more severe by the highly corrosive hydrochloric acid (HCl) generated by the solid rocket boosters (SRBs). Numerous failures at the launch pads are caused by corrosion. The structural integrity of ground infrastructure and flight hardware is critical to the success, safety, cost, and sustainability of space missions. NASA has over fifty years of experience dealing with unexpected failures caused by corrosion and has developed expertise in corrosion control in the launch and other environments. The Corrosion Technology Laboratory at KSC evolved, from what started as an atmospheric exposure test site near NASAs launch pads, into a capability that provides technical innovations and engineering services in all areas of corrosion for NASA, external partners, and customers.This paper provides a chronological overview of NASAs role in anticipating, managing, and preventing corrosion in highly corrosive environments. One important challenge in managing and preventing corrosion involves the detrimental impact on humans and the environment of what have been very effective corrosion control strategies. This challenge has motivated the development of new corrosion control technologies that are more effective and environmentally friendly. Strategies for improved corrosion protection and durability can have a huge impact on the economic sustainability of human spaceflight operations.

  9. Anticipating Interruptions. Security and risk in a liberalized electricity infrastructure

    Energy Technology Data Exchange (ETDEWEB)

    Silvast, A.

    2013-11-01

    During the past ten years, a number of social scientists have emphasized the importance of material infrastructures like electricity supply as a research topic for the social sciences. The developing of such new perspectives concerning infrastructures also includes uncertainties and risks. This research analyzes the management of uncertainties in the Finnish electricity infrastructure by posing the following research question: how are electricity interruptions, or blackouts, anticipated in Finland and how are these interruptions managed as risks? The main research methodology of the work is multi-sited field work. The empirical materials include interviews with experts and lay people (33 interviews); participant observation in two electricity control rooms; an electricity consumer survey (115 respondents); and also a number of infrastructure and security policy documents and observations from electricity security seminars. The materials were primarily gathered between 2004 and 2008. Social science research often links risks with major current social changes or socio-cultural risk perceptions. In recent international social science discussions, however, a new research topic has emerged - those styles of reasoning and techniques of governance that are deployed to manage risk as a practical matter. My study explores these themes empirically by focusing on the specific habitual practices of risk management in the Finnish electricity infrastructure. The work develops various also semi-ethnographic inquiries into infrastructure risk techniques like monitor screening of real-time risks in electricity control rooms; the management of risks in a liberalized electricity market; the emergence of Finnish reasoning about blackouts from a specific historical background; and the ways in which electricity consumers respond to blackouts in their homes. In addition, the work reflects upon the position of a risk researcher in those situations when the research subjects do not define

  10. Pregnancy screening of adolescents and women before radiologic testing: does radiology need a national guideline?

    Science.gov (United States)

    Applegate, Kimberly

    2007-08-01

    Ionizing radiation has known teratogenic and cancer risks to fetuses. Policies for radiation exposure of pregnant patients during imaging tests in radiology departments vary widely and may or may not be in fully written form. No national guideline exists for how individual radiologists or radiology departments should protect fetuses from ionizing radiation exposure. With the rapid increase in the use of radiologic testing in general, particularly computed tomography, more adolescents and women undergo computed tomographic imaging and may unintentionally expose their fetuses. A national discussion within radiology organizations is needed to understand the advantages and disadvantages in the development of a national guideline for screening women of childbearing age for pregnancy before any procedures using ionizing radiation are performed. Given the increased public concern and increased use of radiologic testing, such a national guideline would improve consumer satisfaction and safety.

  11. Radioiodine therapy of differentiated thyroid cancer: radiologic impact of out-patient treatment with 100 to 150 mCi Iodine-131 activities; Radioiodoterapia do carcinoma diferenciado da tireoide: impacto radiologico da liberacao hospitalar de pacientes com atividades entre 100 e 150 mCi de iodo-131

    Energy Technology Data Exchange (ETDEWEB)

    Sapienza, Marcelo Tatit; Willegaignon, Jose; Ono, Carla Rachel; Watanabe, Tomoco; Guimaraes, Maria Ines Calil Cury; Buchpiguel, Carlos Alberto [Universidade de Sao Paulo (USP), SP (Brazil). Faculdade de Medicina. Servico de Medicina Nuclear; Gutterres, Ricardo Fraga; Marechal, Maria Helena da Hora [Comissao Nacional de Energia Nuclear (CNEN), Rio de Janeiro, RJ (Brazil)

    2009-07-01

    Purpose: To evaluate exposure and dosimetry to family members and environment due to outpatient radioiodine therapy of differentiated thyroid carcinoma. Methods: Twenty patients were treated with 100-150 mCi of iodine-131 on an out-patient basis. Family members dosimetry (n = 27) and potential doses inside the house were measured with thermoluminescent dosimeters. Surface contamination and radioactive wastes were also monitored. Results: Less than 1.0 mSv doses were found in 26 co-habitants and 2.8 mSv in a single case (inferior to the acceptable value of 5.0 mSv/procedure). Potential doses in the houses were inferior to 0.25 mSv, excluding the patients bedroom (mean value = 0.69 mSv). Surface contamination (mean = 4.2 Bq.cm{sup -2}) were below clearance levels. Radioactive wastes generated had a volume of 2.5 liters and a total activity estimated in 90 {mu}Ci, with a calculated exposure close to the background radiation levels. Conclusions: No radiological impact was detected after iodine therapy with 100-150 mCi on an out-patient basis followed by experienced professionals. (author)

  12. Health Economics in Radiology Departments

    Directory of Open Access Journals (Sweden)

    Shahram Tofighi

    2010-05-01

    Full Text Available Economics and management are disciplines which are theoretically interdependent and highly intercalated in practice. The manager develops main policies, values, goals and guidelines and at the same time suggests different ways achieving the objectives. The economist suggests the most efficient and effective way. As a matter of fact, there is no institution, for- or non-for-profit, in the world having no concern on economic and financial issues. While all institutions consider cost containment and revenue increase approaches, employing rational and mathematical techniques would be inevitable; systematic and approved tools and logics, undoubtedly would lead better results. The economics, having structured and logical framework, can handle these issues properly. In the economics, providers' and consumers' behaviors are analyzed, seeking the optimum points for demand and supply, and price. The health sector's leaders and policy makers are supposed to develop a situation appropriate for resource-directed and needs-driven behaviors, using legal, financial and other control knobs, the behaviors that eventually end distributive and utility equity in health services. "nAchieving equity in distribution of facilities concomitant with equity in availability and equity in utility are the main concerns of the people and the leaders of the societies. In addition, affordability of the health costs for the majority of the community, and financing for supposed services have led the policy makers to search for cost containment approaches, and some kind of rationing of the services. "nHealth economist deals with applying the two level economics in radiology departments. Micro-economics at the level of institutions, which discusses regulating processes and decisions in order to minimize the expenditures and maximize the revenues via a variety of initiatives, such as customer satisfaction and motivated staff, improving the processes, and reducing the

  13. Radiological response of ceramic and polymeric devices for breast brachytherapy

    Energy Technology Data Exchange (ETDEWEB)

    Batista Nogueira, Luciana, E-mail: lucibn19@yahoo.com.br [Departamento de Propedeutica Complementar, Faculdade de Medicina, Universidade Federal de Minas Gerais, Av. Antonio Carlos, 6627, Pampulha 31270901, BH/MG (Brazil); Passos Ribeiro de Campos, Tarcisio, E-mail: campos@nuclear.ufmg.br [Departamento de Engenharia Nuclear, Programa de Pos Graduacao em Ciencias e Tecnicas Nucleares, Universidade Federal de Minas Gerais, Av. Antonio Carlos, 6627, Pampulha 31270901, BH/MG (Brazil)

    2012-04-15

    In the present study, the radiological visibility of ceramic and polymeric devices implanted in breast phantom was investigated for future applications in brachytherapy. The main goal was to determine the radiological viability of ceramic and polymeric devices in vitro by performing simple radiological diagnostic methods such as conventional X-ray analysis and mammography due to its easy access to the population. The radiological response of ceramic and polymeric devices implanted in breast phantom was determined using conventional X-ray, mammography and CT analysis. - Highlights: Black-Right-Pointing-Pointer Radiological visibility of ceramic and polymeric devices implanted in breast phantom. Black-Right-Pointing-Pointer The barium incorporation in the seed improves the radiological contrast. Black-Right-Pointing-Pointer Radiological monitoring shows the position, orientation and degradation of devices. Black-Right-Pointing-Pointer Simple radiological methods such as X-ray and mammography were used for radiological monitoring.

  14. Anticipation or ascertainment bias in schizophrenia? Penrose`s familial mental illness sample

    Energy Technology Data Exchange (ETDEWEB)

    Bassett, A.S. [Univ. of Toronto (Canada)]|[Queen Street Mental health Centre, Toronto (Canada); Husted, J. [Univ. of Waterloo, Ontario (Canada)

    1997-03-01

    Several studies have observed anticipation (earlier age at onset [AAO] in successive generations) in familial schizophrenia. However, whether true anticipation or ascertainment bias is the principal originating mechanism remains unclear. In 1944 L.S. Penrose collected AAO data on a large, representative sample of familial mental illness, using a broad ascertainment strategy. These data allowed examination of anticipation and ascertainment biases in five two-generation samples of affected relative pairs. The median intergenerational difference (MID) in AAO was used to assess anticipation. Results showed significant anticipation in parent-offspring pairs with schizophrenia (n = 137 pairs; MID 15 years; P = .0001) and in a positive control sample with Huntington disease (n = 11; P = .01). Broadening the diagnosis of the schizophrenia sample suggested anticipation of severity of illness. However, other analyses provided evidence for ascertainment bias, especially in later-AAO parents, in parent-offspring pairs. Aunt/uncle-niece/nephew schizophrenia pairs showed anticipation (n = 111; P = .0001), but the MID was 8 years and aunts/uncles had earlier median AAO than parents. Anticipation effects were greatest in pairs with late-AAO parents but remained significant in a subgroup of schizophrenia pairs with early parental AAO (n = 31; P = .03). A small control sample of other diseases had MID of 5 years but no significant anticipation (n = 9; F = .38). These results suggest that, although ascertainment-bias effects were observed in parent-offspring pairs, true anticipation appears to be inherent in the transmission of familial schizophrenia. The findings support investigations of unstable mutations and other mechanisms that may contribute to true anticipation in schizophrenia. 37 refs., 2 tabs.

  15. Magnetic resonance angiography in potential live renal donors: a joint radiological and surgical evaluation

    Energy Technology Data Exchange (ETDEWEB)

    Subramaniam, M.; Mizzi, A.; Roditi, G. E-mail: Giles.Roditi@northglasgow.scot.nhs.ukgilesroditi@mac.com

    2004-04-01

    AIM: To assess the impact of a joint surgical and radiological audit on the accuracy of contrast-enhanced magnetic resonance angiography (MRA) reports in the evaluation of potential renal donors. MATERIALS AND METHODS: We analysed the records of live renal donors who underwent gadolinium-enhanced MRA as part of the pre-operative evaluation to assess renal vasculature between August 1999 and July 2002 when feedback from surgical findings to radiology had been available. In cases of discrepancy between MRA reports and surgical findings, studies were retrieved from the magnetic resonance imaging (MRI) workstation and subjected to detailed joint clinical and radiological review. Scan quality was assessed and sources of discrepancy were identified. RESULTS: There were 45 donors, 23 men and 22 women with a mean age of 41 years. Reported MRA findings were fully confirmed at surgery in 38 of 45 cases. These images were not analysed further. In seven donors the findings at surgery were discrepant with the radiological reports: there were four cases of 'missed' early branches and three cases of 'missed' accessory arteries. In the first year of the audit there were four discrepant cases out of 18 (22%), all of which were radiological reporting errors. The number of discrepant cases in the second year was two out of 19 cases (11%). Neither of these was a radiological reporting error. There was one 'missed' early renal artery branch in the third year of audit, which was identified on MRA review. CONCLUSION: The study highlights the importance of detecting and clearly reporting not only accessory renal arteries, but also early renal arterial branches in the pre-operative evaluation of renal donors. The accuracy of pre-operative MRA in potential renal donors is high, but radiological reporting of MRA examinations is improved through careful clinical feedback, audit and interdisciplinary co-operation.

  16. E-learning and education in radiology

    Energy Technology Data Exchange (ETDEWEB)

    Pinto, Antonio, E-mail: antopin1968@libero.it [Department of Diagnostic Imaging, A. Cardarelli Hospital, I-80131 Naples (Italy); Brunese, Luca, E-mail: lucabrunese@libero.it [Department of Health Science, Faculty of Medicine and Surgery, University of Molise, I-86100 Campobasso (Italy); Pinto, Fabio, E-mail: fpinto1966@libero.it [Department of Diagnostic Imaging, A. Cardarelli Hospital, I-80131 Naples (Italy); Acampora, Ciro, E-mail: itrasente@libero.it [Department of Diagnostic Imaging, A. Cardarelli Hospital, I-80131 Naples (Italy); Romano, Luigia, E-mail: luigia.romano@fastwebnet.it [Department of Diagnostic Imaging, A. Cardarelli Hospital, I-80131 Naples (Italy)

    2011-06-15

    Purpose: To evaluate current applications of e-learning in radiology. Material and methods: A Medline search was performed using PubMed (National Library of Medicine, Bethesda, MD) for publications discussing the applications of e-learning in radiology. The search strategy employed a single combination of the following terms: (1) e-learning, and (2) education and (3) radiology. This review was limited to human studies and to English-language literature. We reviewed all the titles and subsequent the abstract of 29 articles that appeared pertinent. Additional articles were identified by reviewing the reference lists of relevant papers. Finally, the full text of 38 selected articles was reviewed. Results: Literature data shows that with the constant development of technology and global spread of computer networks, in particular of the Internet, the integration of multimedia and interactivity introduced into electronic publishing has allowed the creation of multimedia applications that provide valuable support for medical teaching and continuing medical education, specifically for radiology. Such technologies are valuable tools for collaboration, interactivity, simulation, and self-testing. However, not everything on the World Wide Web is useful, accurate, or beneficial: the quality and veracity of medical information on the World Wide Web is variable and much time can be wasted as many websites do not meet basic publication standards. Conclusion: E-learning will become an important source of education in radiology.

  17. Conventional dental radiology; Konventionelle Dentalradiologie und Zukunftsperspektiven

    Energy Technology Data Exchange (ETDEWEB)

    Youssefzadeh, S.; Gahleitner, A. [Universitaetsklinik fuer Radiodiagnostik, Wien (Austria); Bernhart, D.; Bernhart, T. [Universitaetsklinik fuer Zahnheilkunde, Wien (Austria)

    1999-12-01

    Until recently, conventional dental radiology was performed by dentists and orofacial surgeons. Due to the rapid development of radiological technique, the demand of radiological advice is increasing. The radiologists see more and more dental patients in their daily routine. The aim of this article is to give an overview on established dental radiology and a glimpse into the future. Conventional dental radiology and digital radiography are presently in use. Intraoral technique comprises dental films, bite-wing views and occlusal radiographs. Panoramic views and cephalometric radiographs are done with extraoral technique. Digital radiography lacks all processes in behalf of film development. It leads to dose reduction and enables image manipulation. (orig.) [German] Die konventionelle Radiologie in der Zahnheilkunde (Dentalradiologie) wurde hauptsaechlich von den niedergelassenen Zahnaerzten und Mund-, Kiefer- und Gesichtschirurgen betrieben. Aufgrund der rasanten Entwicklung in der radiologischen Methodik wird die fachaerztliche Unterstuetzung durch den Radiologen immer notwendiger, und die raschen Fortschritte erfordern eine zunehmende Zusammenarbeit dieser medizinischen Faecher. Die fachspezifische Anforderung an den Radiologen tritt immer haeufiger im Routinebetrieb auf. Ziel dieses Artikels ist die Aufstellung der derzeit eingesetzten Technik sowie ein Ausblick in die nahe Zukunft. Prinzipiell wird zwischen der konventionellen Dentalradiologie und der digitalen Radiographie unterschieden. Die Dentalradiologie setzt sich aus der intraoralen Technik (Zahnfilme, Bissfluegelaufnahmen, Aufbissaufnahme) und der extraoralen Technik (Panoramaaufnahmen, Panoramaschichtaufnahmen, Fernroentgen) zusammen. Die digitale Radiographie ermoeglicht die Umgehung der konventionellen Entwicklungsverfahren, eine Strahlendosisreduktion und bietet die Moeglichkeit der Bildverarbeitung. (orig.)

  18. Eponyms in cardiothoracic radiology: Part I. Neoplasms.

    Science.gov (United States)

    Mohammed, Tan-Lucien H; Saettele, Megan R; Saettele, Timothy; Patel, Vikas; Kanne, Jeffrey P

    2014-01-01

    Eponyms serve the purpose of honoring individuals who have made important observations and discoveries. As with other fields of medicine, eponyms are frequently encountered in radiology, particularly in chest radiology. However, inappropriate use of an eponym may lead to potentially dangerous miscommunication. Moreover, an eponym may honor the incorrect person or a person who falls into disrepute. Despite their limitations, eponyms are still widespread in medical literature. Furthermore, in some circumstances, more than one individual may have contributed to the description or discovery of a particular anatomical structure or disease, whereas in others, an eponym may have been incorrectly applied initially and propagated for years in medical literature. Nevertheless, radiologic eponyms are a means of honoring those who have made lasting contributions to the field of radiology, and familiarity with these eponyms is critical for proper reporting and accurate communication. In addition, the acquisition of some historical knowledge about those whose names are associated with various structures or pathologic conditions conveys a sense of humanity in the field of medicine. In this article, the first of a multipart series, the authors discuss a number of chest radiology eponyms as they relate to neoplasms, including relevant clinical and imaging features, as well biographic information of the respective eponym׳s namesake.

  19. In the Lead Again Horizontal-Ellipsis [Journal of Cardiovascular and Interventional Radiology

    Energy Technology Data Exchange (ETDEWEB)

    Vorwerk, Dierk, E-mail: dierk.vorwerk@klinikum-ingolstadt.de [Ingolstadt Hospital, Department of Diagnostic and Interventional Radiology (Germany)

    2013-10-15

    The 2013 ISI journal rankings are out and it is my pleasure to inform our readership that CVIR ranks 43/120 (2012: 46/118) journals in the field of radiology. The 2013 impact factor further improved to 2.138 (2012: 2.093). This means that Cardiovascular and Interventional Radiology again continues to be the highest ranked journal dedicated to the field of interventional radiology in 2013.This is mainly due to the great support we achieve by you as authors and readers of CVIR, your dedication to the profession, and your loyalty both to the journal and to CIRSE. For all of this, we owe you our thanks and respect.

  20. Contributions from eye movement potentials to stimulus preceding negativity during anticipation of auditory stimulation

    DEFF Research Database (Denmark)

    Engdahl, Lis; Bjerre, Vicky K; Christoffersen, Gert R J

    2007-01-01

    Cognitive anticipation of a stimulus has been associated with an ERP called "stimulus preceding negativity" (SPN). A new auditory delay task without stimulus-related motor activity demonstrated a prefrontal SPN, present during attentive anticipation of sounds with closed eyes, but absent during...

  1. The relative importance of different perceptual-cognitive skills during anticipation.

    Science.gov (United States)

    North, Jamie S; Hope, Ed; Williams, A Mark

    2016-10-01

    We examined whether anticipation is underpinned by perceiving structured patterns or postural cues and whether the relative importance of these processes varied as a function of task constraints. Skilled and less-skilled soccer players completed anticipation paradigms in video-film and point light display (PLD) format. Skilled players anticipated more accurately regardless of display condition, indicating that both perception of structured patterns between players and postural cues contribute to anticipation. However, the Skill×Display interaction showed skilled players' advantage was enhanced in the video-film condition, suggesting that they make better use of postural cues when available during anticipation. We also examined anticipation as a function of proximity to the ball. When participants were near the ball, anticipation was more accurate for video-film than PLD clips, whereas when the ball was far away there was no difference between viewing conditions. Perceiving advance postural cues appears more important than structured patterns when the ball is closer to the observer, whereas the reverse is true when the ball is far away. Various perceptual-cognitive skills contribute to anticipation with the relative importance of perceiving structured patterns and advance postural cues being determined by task constraints and the availability of perceptual information.

  2. Attitudes toward Seeking Professional Help for an Eating Disorder: The Role of Stigma and Anticipated Outcomes

    Science.gov (United States)

    Hackler, Ashley H.; Vogel, David L.; Wade, Nathaniel G.

    2010-01-01

    This study examined the relationship between self-stigma, anticipated risks and benefits associated with seeking counseling, and attitudes toward seeking counseling among college students with disordered eating attitudes and behaviors. The results of hierarchical regression analyses demonstrated that self-stigma and the anticipated risks and…

  3. Image Sharing in Radiology-A Primer.

    Science.gov (United States)

    Chatterjee, Arindam R; Stalcup, Seth; Sharma, Arjun; Sato, T Shawn; Gupta, Pushpender; Lee, Yueh Z; Malone, Christopher; McBee, Morgan; Hotaling, Elise L; Kansagra, Akash P

    2017-03-01

    By virtue of its information technology-oriented infrastructure, the specialty of radiology is uniquely positioned to be at the forefront of efforts to promote data sharing across the healthcare enterprise, including particularly image sharing. The potential benefits of image sharing for clinical, research, and educational applications in radiology are immense. In this work, our group-the Association of University Radiologists (AUR) Radiology Research Alliance Task Force on Image Sharing-reviews the benefits of implementing image sharing capability, introduces current image sharing platforms and details their unique requirements, and presents emerging platforms that may see greater adoption in the future. By understanding this complex ecosystem of image sharing solutions, radiologists can become important advocates for the successful implementation of these powerful image sharing resources.

  4. Radiologic investigation after laparoscopic inguinal hernia repair

    Energy Technology Data Exchange (ETDEWEB)

    Larmark, Martin; Ekberg, Olle [Department of Diagnostic Radiology, Malmoe University Hospital, 205 02, Malmoe (Sweden); Montgomery, Agneta [Department of Surgery, Malmoe University Hospital, 205 02, Malmoe (Sweden)

    2003-12-01

    Laparoscopic instead of open surgical repair of inguinal hernias is becoming more frequent. Radiologists may expect different postoperative findings depending on the technique used. We studied how radiology had been used postoperatively and what findings were encountered after laparoscopic herniorraphy. Postoperative radiologic examinations related to hernia repair of all consecutive patients that had had laparoscopic herniorraphy in Malmoe University hospital between 1992 and 1998 were retrospectively evaluated. A total of 538 groins were included, 3.9% (n=21) of these were postoperatively examined with ultrasound (n=10), herniography (n=7), plain abdominal films (n=2), CT (n=1), or fistulography (n=1). Significant findings were found in five groins, namely, one sinus tract, two hematomas, one small bowel obstruction, and one recurrence of hernia. Four insignificant seromas were found. The characteristics of the findings and pitfalls are described. Symptoms resulting in radiologic examination are rare after laparoscopic herniorraphy. The radiologist must be familiar with the spectrum of such findings. (orig.)

  5. Science and Values in Radiological Protection

    Energy Technology Data Exchange (ETDEWEB)

    Lochard, J. [Centre d' Etude sur l' Evaluation de la Protection dans le Domaine Nucleaire (CEPN), 92 - Fontenay-aux-Roses (France); Eggermont, G. [Belgian Association of Radiation Protection (Belgium); Britt-Marie, Drottz Sjoberg [Norwegian University of Science and Technology (Norway); Tirmarche, M. [Institut de radioprotection et de surete nucleaire (IRSN), 92 - Fontenay-aux-Roses (France); Geard, Ch.R. [Center for Radiological Research of Columbia University (United States); Atkinson, M. [Institute of Radiation Biology, Helmholtz Zentrum Munich (Germany); Murith, Ch. [Federal Office of Public Health (Switzerland); Grant, K.G. [RESOLVE (United States); Luccioni, C. [Conservatoire National des Arts et Metiers (CNAM), 75 - Paris (France); Mays, C. [NEA, 75 - Paris (France); Sisko, Salomaa [Finnish Centre for Radiation and Nuclear Safety (STUK), Helsinki (Finland); Kelly, N.G.; Oughton, D. [Norwegian University of Life Sciences (Norway); Shannoun, F. [WHO, Geneva (Switzerland); Grant, K.G. [RESOLVE (United States); Cooper, J. [Health Protection Agency (United Kingdom); Mays, C. [NEA, 75 - Paris (France); Weiss, V. [Bundesamt fur Strahlenschutz (Germany); Oughton, D. [Norwegian University of Life Sciences (Norway); Kazuo, Sakai [National Institute of Radiological Science (Japan); Carroll, S. [Swedish Biodiversity Centre, University of Agricultural Sciences and Uppsala University (Sweden)

    2010-07-01

    The workshop provides a forum for exchange of information and experience among regulators, scientists and governmental and non-governmental organisations in the areas of radiological protection and public health. This is the second in the series of NEA workshops on this subject. The first Science and Values in Radiological Protection workshop was held in Helsinki in January 2008 and hosted by the Radiation and Nuclear Safety Authority of Finland (STUK). The workshop focussed on developing a shared understanding between various stakeholders and identifying the elements of a framework more suited to the integration of new scientific and technological developments and socio-political considerations in radiological protection. This second workshop focusses on radiological protection issues that are currently facing us, and that continue to pose challenges to our world today. This document gathers the available slides of the presentations given at the workshop: - Science and Values in Radiological Protection: Towards a Framework (Jacques Lochard): This talk makes the link with the Science and Values in Radiological Protection workshop in Helsinki, and lay out the overall goals of the present workshop. It explains the format of plenary/break-out sessions. - Public Health Perspective in Radiological Protection in Challenging Topical Areas (Gilbert Eggermont): This talk gives more detail on the choice of the three case topics and the linkage to public health concerns in radiological protection. It makes a specific link with Helsinki workshop findings and the CRPPH Expert Group on the Public Health. Perspective in Radiological Protection work. - Civil Society Needs (Britt-Marie Drottz Sjoeberg): This talk briefly reviews the radiation protection concerns and communication needs of civil society. It points out different categories of stakeholders and their understanding of radiation risks implied by the three case topics. It addresses the question of how radiological

  6. Radiologic Imaging in Meckel Diverticulum Complications

    Directory of Open Access Journals (Sweden)

    Erin Leslee Dames

    2015-09-01

    Full Text Available In 1809, Johann Friedrich Meckel the Younger described the most common congenital small bowel anomaly, which was named after him; however, the radiologic manifestations and interventional guidelines related to this entity are still limited to a few large-scale case series as well as proposed therapeutic protocols for the general population. Despite the fact that this entity is more commonly found within the first decade of life, imaging and management protocols remain controversial in the pediatric population, particularly within the asymptomatic group. We present an article depicting the radiologic and histologic findings in a series of Meckel's diverticulum within the pediatric population seen within our institution. We present this series to underscore the importance of high clinical suspicion in the early diagnosis and management of Meckel's diverticulum and to examine further the radiologic and therapeutic protocols within the pediatric population based on our local experience.

  7. Autoimmune pancreatitis mimicking Klatskin tumour on radiology.

    Science.gov (United States)

    Hadi, Yousaf Bashir; Sohail, Abdul Malik Amir Humza; Haider, Zishan

    2015-04-09

    Autoimmune pancreatitis (AIP) is categorised into two distinct types, AIP type 1 and 2. Although there can be multisystem involvement, rarely, the cholangitis associated with AIP can present radiologically in a manner similar to that of Klatskin tumour. We present the case of a 65-year-old man who was almost misdiagnosed with a Klatskin tumour because of the similarity in radiological features of the two aforementioned clinical entities. The patient presented with a history of jaundice, pruritus and abdominal pain, and work up showed deranged liver function tests, elevated cancer antigen 19-9 levels and positive antinuclear antibodies. CT scan of the abdomen showed findings suggestive of Klatskin tumour but due to diffuse enlargement of the pancreas and surrounding low-attenuation halo found on a closer review, a diagnosis of AIP was performed. The patient was started on standard corticosteroid therapy and responded well, with complete resolution of the radiological findings.

  8. The quantum X-ray radiology apparatus

    CERN Document Server

    Hilt, B; Prevot, G

    2000-01-01

    The paper entitled 'New Quantum Detection System for Very Low Dose X-ray Radiology', presented at the talk session, discusses the preliminary data obtained using a new quantum X-ray radiology system with a high-efficiency solid-state detector and highly sensitive electronics, making it possible to reduce significantly the dose administered to a patient in X-ray radiology examinations. The present paper focuses more on the technological aspects of the apparatus, such as the integration of the detector with the two Asics, and the computer system. Namely, it is shown how the computer system calibrates the detection system, acquires the data in real time, and controls the scan parameters and image filtering process.

  9. ICRP PUBLICATION 120: Radiological protection in cardiology.

    Science.gov (United States)

    Cousins, C; Miller, D L; Bernardi, G; Rehani, M M; Schofield, P; Vañó, E; Einstein, A J; Geiger, B; Heintz, P; Padovani, R; Sim, K-H

    2013-02-01

    Cardiac nuclear medicine, cardiac computed tomography (CT), interventional cardiology procedures, and electrophysiology procedures are increasing in number and account for an important share of patient radiation exposure in medicine. Complex percutaneous coronary interventions and cardiac electrophysiology procedures are associated with high radiation doses. These procedures can result in patient skin doses that are high enough to cause radiation injury and an increased risk of cancer. Treatment of congenital heart disease in children is of particular concern. Additionally, staff(1) in cardiac catheterisation laboratories may receive high doses of radiation if radiological protection tools are not used properly. The Commission provided recommendations for radiological protection during fluoroscopically guided interventions in Publication 85, for radiological protection in CT in Publications 87 and 102, and for training in radiological protection in Publication 113 (ICRP, 2000b,c, 2007a, 2009). This report is focused specifically on cardiology, and brings together information relevant to cardiology from the Commission's published documents. There is emphasis on those imaging procedures and interventions specific to cardiology. The material and recommendations in the current document have been updated to reflect the most recent recommendations of the Commission. This report provides guidance to assist the cardiologist with justification procedures and optimisation of protection in cardiac CT studies, cardiac nuclear medicine studies, and fluoroscopically guided cardiac interventions. It includes discussions of the biological effects of radiation, principles of radiological protection, protection of staff during fluoroscopically guided interventions, radiological protection training, and establishment of a quality assurance programme for cardiac imaging and intervention. As tissue injury, principally skin injury, is a risk for fluoroscopically guided interventions

  10. Adaptation aftereffects in the perception of radiological images.

    Directory of Open Access Journals (Sweden)

    Elysse Kompaniez

    Full Text Available Radiologists must classify and interpret medical images on the basis of visual inspection. We examined how the perception of radiological scans might be affected by common processes of adaptation in the visual system. Adaptation selectively adjusts sensitivity to the properties of the stimulus in current view, inducing an aftereffect in the appearance of stimuli viewed subsequently. These perceptual changes have been found to affect many visual attributes, but whether they are relevant to medical image perception is not well understood. To examine this we tested whether aftereffects could be generated by the characteristic spatial structure of radiological scans, and whether this could bias their appearance along dimensions that are routinely used to classify them. Measurements were focused on the effects of adaptation to images of normal mammograms, and were tested in observers who were not radiologists. Tissue density in mammograms is evaluated visually and ranges from "dense" to "fatty." Arrays of images varying in intermediate levels between these categories were created by blending dense and fatty images with different weights. Observers first adapted by viewing image samples of dense or fatty tissue, and then judged the appearance of the intermediate images by using a texture matching task. This revealed pronounced perceptual aftereffects - prior exposure to dense images caused an intermediate image to appear more fatty and vice versa. Moreover, the appearance of the adapting images themselves changed with prolonged viewing, so that they became less distinctive as textures. These aftereffects could not be accounted for by the contrast differences or power spectra of the images, and instead tended to follow from the phase spectrum. Our results suggest that observers can selectively adapt to the properties of radiological images, and that this selectivity could strongly impact the perceived textural characteristics of the images.

  11. Anticipation Driving Behavior and Related Reduction of Energy Consumption in Traffic Flow

    Science.gov (United States)

    Shi, Wei; Wei, Yan-Fang; Song, Tao; Dai, Shi-Qiang; Dong, Li-Yun

    In view that drivers would pay attention to the variation of headway on roads, an extended optimal velocity model is proposed by considering anticipation driving behavior. A stability criterion is given through linear stability analysis of traffic flows. The mKdV equation is derived with the reductive perturbation method for headway evolution which could be used to describe the stop-and-go traffic phenomenon. The results show a good effect of anticipation driving behavior on the stabilization of car flows and the anticipation driving behavior can improve the numerical stability of the model as well. In addition, the fluctuation of kinetic energy and the consumption of average energy in congested traffic flows are systematically analyzed. The results show that the reasonable level of anticipation driving behavior can save energy consumption in deceleration process effectively and lead to an associated relation like a "bow-tie" between the energy-saving and the value of anticipation factor.

  12. A Lean Six Sigma journey in radiology.

    Science.gov (United States)

    Bucci, Ronald V; Musitano, Anne

    2011-01-01

    The department of radiology at Akron Children's Hospital embarked on a Lean Six Sigma mission as part of a hospital wide initiative to show increased customer satisfaction, reduce employee dissatisfaction and frustration, and decrease costs. Three processes that were addressed were reducing the MRI scheduling back-log, reconciling discrepancies in billing radiology procedures, and implementing a daily management system. Keys to success is that managers provide opportunities to openly communicate between department sections to break down barriers. Executive leaders must be engaged in Lean Six Sigma for the company to be successful.

  13. Dento-maxillofacial radiology as a specialty

    Institute of Scientific and Technical Information of China (English)

    K?van?; Kamburo?lu

    2015-01-01

    This editorial discusses a relatively new specialty in dental and medical field namely dentomaxillofacial radiology. As a relatively newborn specialty it is obvious that there is a long way to go before dentomaxillofacial radiology is commonly known and respected by the society. All over the world, assigned committees work on the development of the training curriculum, determination of scientific and physical standards for institutions offering specialty training and arrangement of dental codes for reimbursement issues. Furthermore, adjustment of educational, scientific and legal regulations and prospective benefits are expected to boost this specialty’s attractiveness to colleagues’ worldwide.

  14. Review on radiation protection in diagnostic radiology

    Directory of Open Access Journals (Sweden)

    Vahid Karami

    2016-10-01

    Full Text Available Discovery of x-ray and using of it for medical imaging have produced tremendous outcomes for diagnosis and treatment of diseases. More than 10 million diagnostic radiological procedures and 100,000 nuclear medicine exams are being performed daily around the world. According to the national commission on radiological protection and measurements (NCRP-report 160, medical x-ray is contribute to approximately 95% of all radiological examinations that is responsible for 74% of the collective dose to the US population. Despite of unique benefits of ionizing radiations, in the field of radiation protection, they are associated with potential risks such as cancer and genetically abnormalities. The cancer risk attributable to diagnostic radiology is estimated about 0.6% to 3%. It is estimated that the radiation dose from diagnostic x-ray procedures are annually responsible for 7,587 and 5,695 cases of radiation induced cancer in the population of Japan and US, respectively. Although the radiation dose associated with most radiological procedures are very low, but rapid increasing use of radiography procedures during two past decades have been concerned due to the cancer risk associated with ionizing radiations. On the base of linear no-threshold (LNT model of dose-response curve, any level of exposure is dangerous. Deoxyribonucleic acid (DNA is the main target of ionizing radiation. For radiological exposure with low dose, the stochastic effects such as genetic damages and leukemia are concerned. According to the recommendations of the radiation protection regulatory organizations, radiological procedure must be done with respect to social and economic factors in which exposure of patient and population kept as low as reasonable and achievable. Hence, prescription of a radiological test is acceptable only when its advantages are higher than its damages. Optimizing the different parameters such as: collimating the primary beam field to the area of

  15. Radiological information management system SRIM-10

    Energy Technology Data Exchange (ETDEWEB)

    Shibata, Koichi; Goto, Yoshihisa

    1989-03-01

    A radiological information management system, SRIM-10, has been developed using a personal computer, in order to smoothly manage routine works in radiological division of hospitals. Data base is constructed with radiographic data acuqired directly from x-ray apparatus and patient information acquired using ID card. It is possible to record patient information of about 10,000 patients and radiographic data of about 120,000 exposures. This system can be made up as a multi work station system using a local area network. (author).

  16. Medical Ethics and Law in Radiologic Technology.

    Science.gov (United States)

    Matthews, Eric P; Matthews, Tracy M

    2015-01-01

    At every stage of their careers, radiologic technologists and student technologists must adhere to high ethical standards, obey the law, and consistently conduct themselves with professionalism. This article explains how modern health care ethics evolved, focusing on 8 important theorists. It also describes the ethical responsibilities of health care providers and the rights of patients. Important civil rights laws are discussed, focusing on the rights of health care workers as employees. A brief overview of the U.S. legal system follows, including the causes of action that most commonly involve health care professionals. Finally, this article discusses professionalism and its implications for radiologic technologists.

  17. Extracting diagnosis from Japanese radiological report.

    Science.gov (United States)

    Imai, Takeshi; Onogi, Yuzo

    2003-01-01

    This study is aimed at extracting diagnosis with positive or negative assertion from radiological report written in Japanese Natural Language. We get frequency of verb patterns that indicate pos/neg assertion, and extract a rule in order of the occurrence. We made customized dictionary of 36,152 terms relating to disease names or radiological findings, and tried to extract pairs of (pos/neg, disease and verb pattern ) by using rules according to the most frequent pattern from 1,524/5,000 CT reports (each report consists of 15.1 words on the average). We tried only a few rules so far, and continue to find other rules.

  18. Early radiology and the National Medical Association.

    Science.gov (United States)

    Oestreich, Alan E

    2011-01-01

    Both the discovery of the x-ray and the founding of the National Medical Association (NMA) occurred in 1895. Radiologists have participated importantly in the NMA since the lecture of Dr Marcus F. Wheatland at the 1909 Annual Meeting in Boston, Massachusetts, which led to his election as president of the NMA for the following year. More recently, Dr Tracy M. Walton was president of the NMA in its centennial year. This article details early and continued participation in the NMA by radiologists, including the founding of the Section on Radiology in 1949, with its first chairman, Dr William E. Allen, Jr, longtime leader in radiology, the section, and the NMA.

  19. Radiology Consultation in the Era of Precision Oncology: A Review of Consultation Models and Services in the Tertiary Setting

    Science.gov (United States)

    Krajewski, Katherine M.; Giardino, Angela A.; Braschi-Amirfarzan, Marta; Ramaiya, Nikhil H.

    2017-01-01

    The purpose of the article is to describe the various radiology consultation models in the Era of Precision Medicine. Since the inception of our specialty, radiologists have served as consultants to physicians of various disciplines. A variety of radiology consultation services have been described in the literature, including clinical decision support, patient-centric, subspecialty interpretation, and/or some combination of these. In oncology care in particular, case complexity often merits open dialogue with clinical providers. To explore the utility and impact of radiology consultation services in the academic setting, this article will further describe existing consultation models and the circumstances that precipitated their development. The hybrid model successful at our tertiary cancer center is discussed. In addition, the contributions of a consultant radiologist in breast cancer care are reviewed as the archetype of radiology consultation services provided to oncology practitioners. PMID:28096715

  20. Improving outcomes in radiology: bringing computer-based decision support and education to the point of care.

    Science.gov (United States)

    Kahn, Charles E

    2005-04-01

    Many computer applications have been developed in radiology and other medical disciplines to help physicians make decisions. Artificial intelligence (AI)--an approach to computer-based manipulation of symbols to simulate human reasoning--forms the basis of many of these systems. This article's goals are to: acquaint the reader with the motivations and opportunities for computer-based medical decision support systems; identify AI techniques and applications in radiology decision making; assess the impact of these technologies; and consider new directions and opportunities for AI in radiology. Among the exciting new directions is the use of AI to integrate radiology reporting, online decision support, and just-in-time learning to provide useful information and continuing education that is embedded within a radiologist's daily workflow.

  1. Uncertainty in anticipation of uncomfortable rectal distension is modulated by the autonomic nervous system--a fMRI study in healthy volunteers.

    Science.gov (United States)

    Rubio, Amandine; Van Oudenhove, Lukas; Pellissier, Sonia; Ly, Huynh Giao; Dupont, Patrick; de Micheaux, Hugo Lafaye; Tack, Jan; Dantzer, Cécile; Delon-Martin, Chantal; Bonaz, Bruno

    2015-02-15

    The human brain responds both before and during the application of aversive stimuli. Anticipation allows the organism to prepare its nociceptive system to respond adequately to the subsequent stimulus. The context in which an uncomfortable stimulus is experienced may also influence neural processing. Uncertainty of occurrence, timing and intensity of an aversive event may lead to increased anticipatory anxiety, fear, physiological arousal and sensory perception. We aimed to identify, in healthy volunteers, the effects of uncertainty in the anticipation of uncomfortable rectal distension, and the impact of the autonomic nervous system (ANS) activity and anxiety-related psychological variables on neural mechanisms of anticipation of rectal distension using fMRI. Barostat-controlled uncomfortable rectal distensions were preceded by cued uncertain or certain anticipation in 15 healthy volunteers in a fMRI protocol at 3T. Electrocardiographic data were concurrently registered by MR scanner. The low frequency (LF)-component of the heart rate variability (HRV) time-series was extracted and inserted as a regressor in the fMRI model ('LF-HRV model'). The impact of ANS activity was analyzed by comparing the fMRI signal in the 'standard model' and in the 'LF-HRV model' across the different anticipation and distension conditions. The scores of the psychological questionnaires and the rating of perceived anticipatory anxiety were included as covariates in the fMRI data analysis. Our experiments led to the following key findings: 1) the subgenual anterior cingulate cortex (sgACC) is the only activation site that relates to uncertainty in healthy volunteers and is directly correlated to individual questionnaire score for pain-related anxiety; 2) uncertain anticipation of rectal distension involved several relevant brain regions, namely activation of sgACC and medial prefrontal cortex and deactivation of amygdala, insula, thalamus, secondary somatosensory cortex, supplementary

  2. Anticipation-related brain connectivity in bipolar and unipolar depression: a graph theory approach.

    Science.gov (United States)

    Manelis, Anna; Almeida, Jorge R C; Stiffler, Richelle; Lockovich, Jeanette C; Aslam, Haris A; Phillips, Mary L

    2016-09-01

    Bipolar disorder is often misdiagnosed as major depressive disorder, which leads to inadequate treatment. Depressed individuals versus healthy control subjects, show increased expectation of negative outcomes. Due to increased impulsivity and risk for mania, however, depressed individuals with bipolar disorder may differ from those with major depressive disorder in neural mechanisms underlying anticipation processes. Graph theory methods for neuroimaging data analysis allow the identification of connectivity between multiple brain regions without prior model specification, and may help to identify neurobiological markers differentiating these disorders, thereby facilitating development of better therapeutic interventions. This study aimed to compare brain connectivity among regions involved in win/loss anticipation in depressed individuals with bipolar disorder (BDD) versus depressed individuals with major depressive disorder (MDD) versus healthy control subjects using graph theory methods. The study was conducted at the University of Pittsburgh Medical Center and included 31 BDD, 39 MDD, and 36 healthy control subjects. Participants were scanned while performing a number guessing reward task that included the periods of win and loss anticipation. We first identified the anticipatory network across all 106 participants by contrasting brain activation during all anticipation periods (win anticipation + loss anticipation) versus baseline, and win anticipation versus loss anticipation. Brain connectivity within the identified network was determined using the Independent Multiple sample Greedy Equivalence Search (IMaGES) and Linear non-Gaussian Orientation, Fixed Structure (LOFS) algorithms. Density of connections (the number of connections in the network), path length, and the global connectivity direction ('top-down' versus 'bottom-up') were compared across groups (BDD/MDD/healthy control subjects) and conditions (win/loss anticipation). These analyses showed that

  3. Radiological Characterization and Final Facility Status Report Tritium Research Laboratory

    Energy Technology Data Exchange (ETDEWEB)

    Garcia, T.B.; Gorman, T.P.

    1996-08-01

    This document contains the specific radiological characterization information on Building 968, the Tritium Research Laboratory (TRL) Complex and Facility. We performed the characterization as outlined in its Radiological Characterization Plan. The Radiological Characterization and Final Facility Status Report (RC&FFSR) provides historic background information on each laboratory within the TRL complex as related to its original and present radiological condition. Along with the work outlined in the Radiological Characterization Plan (RCP), we performed a Radiological Soils Characterization, Radiological and Chemical Characterization of the Waste Water Hold-up System including all drains, and a Radiological Characterization of the Building 968 roof ventilation system. These characterizations will provide the basis for the Sandia National Laboratory, California (SNL/CA) Site Termination Survey .Plan, when appropriate.

  4. Childhood hydrocephalus – is radiological morphology associated with etiology

    DEFF Research Database (Denmark)

    Foss-Skiftesvik, Jon; Andresen, Morten; Juhler, Marianne

    2013-01-01

    Clinicians use a non-standardized, intuitive approach when correlating radiological morphology and etiology of hydrocephalus.......Clinicians use a non-standardized, intuitive approach when correlating radiological morphology and etiology of hydrocephalus....

  5. Considerations for the integration of human and wildlife radiological assessments.

    Science.gov (United States)

    Copplestone, D; Brown, J E; Beresford, N A

    2010-06-01

    A number of tools and approaches have been developed recently to allow assessments of the environmental impact of radiation on wildlife to be undertaken. The International Commission on Radiological Protection (ICRP) has stated an intention to provide a more inclusive protection framework for humans and the environment. Using scenarios, which are loosely based on real or predicted discharge data, we investigate how radiological assessments of humans and wildlife can be integrated with special consideration given to the recent outputs of the ICRP. We highlight how assumptions about the location of the exposed population of humans and wildlife, and the selection of appropriate benchmarks for determining potential risks can influence the outcome of the assessments. A number of issues associated with the transfer component and numeric benchmarks were identified, which need to be addressed in order to fully integrate the assessment approaches. A particular issue was the lack of comparable benchmark values for humans and wildlife. In part this may be addressed via the ICRP's recommended derived consideration reference levels for their 12 Reference Animals and Plants.

  6. Considerations for the integration of human and wildlife radiological assessments

    Energy Technology Data Exchange (ETDEWEB)

    Copplestone, D [Environment Agency, PO Box 12, Richard Fairclough House, Knutsford Road, Warrington WA4 1HG (United Kingdom); Brown, J E [Norwegian Radiation Protection Authority, Grini Naeringspark 13, 1361 Oesteraas (Norway); Beresford, N A, E-mail: david.copplestone@environment-agency.gov.u [Centre for Ecology and Hydrology, CEH-Lancaster, Lancaster Environment Centre, Library Avenue, Bailrigg, Lancaster LA1 4AP (United Kingdom)

    2010-06-15

    A number of tools and approaches have been developed recently to allow assessments of the environmental impact of radiation on wildlife to be undertaken. The International Commission on Radiological Protection (ICRP) has stated an intention to provide a more inclusive protection framework for humans and the environment. Using scenarios, which are loosely based on real or predicted discharge data, we investigate how radiological assessments of humans and wildlife can be integrated with special consideration given to the recent outputs of the ICRP. We highlight how assumptions about the location of the exposed population of humans and wildlife, and the selection of appropriate benchmarks for determining potential risks can influence the outcome of the assessments. A number of issues associated with the transfer component and numeric benchmarks were identified, which need to be addressed in order to fully integrate the assessment approaches. A particular issue was the lack of comparable benchmark values for humans and wildlife. In part this may be addressed via the ICRP's recommended derived consideration reference levels for their 12 Reference Animals and Plants.

  7. Geographical variation in radiological services: a nationwide survey

    Directory of Open Access Journals (Sweden)

    Børretzen Ingelin

    2007-02-01

    Full Text Available Abstract Background Geographical variation in health care services challenges the basic principle of fair allocation of health care resources. This study aimed to investigate geographical variation in the use of X-ray, CT, MRI and Ultrasound examinations in Norway, the contribution from public and private institutions, and the impact of accessibility and socioeconomic factors on variation in examination rates. Methods A nationwide survey of activity in all radiological institutions for the year 2002 was used to compare the rates per thousand of examinations in the counties. The data format was files/printouts where the examinations were recorded according to a code system. Results Overall rates per thousand of radiological examinations varied by a factor of 2.4. The use of MRI varied from 170 to 2, and CT from 216 to 56 examinations per 1000 inhabitants. Single MRI examinations (knee, cervical spine and head/brain ranged high in variation, as did certain other spine examinations. For examination of specific organs, the counties' use of one modality was positively correlated with the use of other modalities. Private institutions accounted for 28% of all examinations, and tended towards performing a higher proportion of single examinations with high variability. Indicators of accessibility correlated positively to variation in examination rates, partly due to the figures from the county of Oslo. Correlations between examination rates and socioeconomic factors were also highly influenced by the figures from this county. Conclusion The counties use of radiological services varied substantially, especially CT and MRI examinations. A likely cause of the variation is differences in accessibility. The coexistence of public and private institutions may be a source of variability, along with socioeconomic factors. The findings represent a challenge to the objective of equality in access to health care services, and indicate a potential for better

  8. Inventory Management and the Impact of Anticipation in Evolutionary Stochastic Online Dynamic Optimization

    NARCIS (Netherlands)

    Bosman, P.A.N.; La Poutré, J.A.

    2007-01-01

    Inventory management (IM) is an important area in logistics. The goal is to manage the inventory of a vendor as efficiently as possible. Its practical relevance also makes it an important real-world application for research in optimization. Because inventory must be managed over time, IM optimizatio

  9. The Anticipated Clinical and Economic Impact of 90-90-90 in South Africa

    Science.gov (United States)

    Walensky, Rochelle P.; Borre, Ethan D.; Bekker, Linda-Gail; Resch, Stephen C.; Hyle, Emily P.; Wood, Robin; Weinstein, Milton C.; Ciaranello, Andrea L.; Freedberg, Kenneth A.; Paltiel, A. David

    2016-01-01

    Background The UNAIDS “90-90-90” global treatment target aims to achieve 73% virologic suppression among HIV-infected persons worldwide by 2020. Objective Using a microsimulation model of HIV detection, disease and treatment, we estimate the clinical and economic value of reaching this ambitious goal in South Africa. Design We model: the Current Pace strategy, simulating existing scale-up efforts and gradual increases in overall virologic suppression from 24% to 36% in 5 years; and the UNAIDS Target strategy, simulating 73% suppression in 5 years. Data Sources Published estimates and South African survey data inform HIV transmission rates (0.16–9.03/100PY), HIV-specific age-stratified fertility rates (1.0–9.1/100PY), and costs (ART: $11–31/month, routine care: $20–157/month). Target population South African HIV-infected population, including incident infections over the next ten years Perspective Modified societal perspective, excluding time and productivity costs Time Horizon Five and ten years Interventions Aggressive HIV case-detection, efficient linkage to care, rapid treatment scale-up and adherence/retention interventions toward the UNAIDS Target strategy Outcome Measures HIV transmissions, deaths, years of life saved (YLS), maternal orphans, costs (2014USD), and cost-effectiveness Base Case Analysis Compared to Current Pace over (5- and) 10-years, the UNAIDS Target strategy would avert (873,000) 2,051,000 HIV transmissions, (1,174,000) 2,478,000 deaths, and (726,000) 1,689,000 maternal orphans, while saving (3,002,000) 13,340,000 life-years. The additional budget required for the UNAIDS Target strategy would be ($7.965) $15.979 billion, yielding an incremental cost-effectiveness ratio (ICER) of ($2,720/YLS) $1,260/YLS, (<50%) <20% of South Africa per capita GDP. Results of Sensitivity Analysis Outcomes generally varied <20% from base case outcomes when we varied key input parameters within plausible ranges. Limitations Several pathways may lead to 73% overall suppression which were examined in sensitivity analysis. Conclusions Reaching the “90-90-90” HIV suppression target would be costly but both extraordinarily effective and cost-effective in South Africa. Global health policy makers should mobilize the political and economic support to make the 90-90-90 aspiration a reality. PMID:27240120

  10. Managing social impact in design: tools and methods for anticipating consequences of technology

    NARCIS (Netherlands)

    Bouma, J.T.

    2013-01-01

    The use of email communication, mobile phones and cars has had wide-ranging social consequences. What is more, designers are plainly not always aware of all social consequences of technology, despite practicing user-centred design. Modern technology creates possibilities to influence social behaviou

  11. Decision making regarding prophylactic mastectomy: stability of preferences and the impact of anticipated feelings of regret.

    NARCIS (Netherlands)

    Dijk, S. van; Roosmalen, M.S van; Otten, W.; Stalmeier, P.F.M.

    2008-01-01

    PURPOSE: Women who test positive for a BRCA1/2 mutation face difficult choices to manage their breast cancer risk; one of these choices is whether to opt for prophylactic mastectomy. Few data are available about this decision-making process. The current study provides data regarding the stability of

  12. Diagnostic radiology on multiple injured patients: interdisciplinary management; Radiologische Diagnostik beim Polytrauma: interdisziplinaeres Management

    Energy Technology Data Exchange (ETDEWEB)

    Linsenmaier, U.; Pfeifer, K.J. [Inst. fuer Radiologische Diagnostik, Klinikum der Univ. Muenchen (Germany); Kanz, K.G.; Mutschler, W. [Chirurgische Klinik Innenstadt, Klinikum der Univ. Muenchen, (Germany)

    2001-06-01

    The presence of a radiologist within the admitting area of an emergency department and his capability as a member of the trauma team have a major impact on the role of diagnostic radiology in trauma care. The knowledge of clinical decision criteria, algorithms, and standards of patient care are essential for the acceptance within a trauma team. We present an interdisciplinary management concept of diagnostic radiology for trauma patients, which comprises basic diagnosis, organ diagnosis, radiological ABC, and algorithms of early clinical care. It is the result of a prospective study comprising over 2000 documented multiple injured patients. The radiologist on a trauma team should support trauma surgery and anesthesia in diagnostic and clinical work-up. The radiological ABC provides a structured approach for diagnostic imaging in all steps of the early clinical care of the multiple injured patient. Radiological ABC requires a reevaluation in cases of equivocal findings or difficulties in the clinical course. Direct communication of radiological findings with the trauma team enables quick clinical decisions. In addition, the radiologist can priority-oriented influence the therapy by using interventional procedures. The clinical radiologist is an active member of the interdisciplinary trauma team, not only providing diagnostic imaging but also participating in clinical decisions. (orig.) [German] Die Anwesenheit des Radiologen im Schockraum und dessen Teamfaehigkeit bestimmen den Status der diagnostischen Radiologie in der Traumaversorgung. Voraussetzung zur Mitarbeit im interdisziplinaeren Traumateam ist die detaillierte Kenntnis der wesentlichen Entscheidungskriterien, Algorithmen und Behandlungsablaeufe. Das hier vorgestellte interdisziplinaere Managementkonzept der radiologischen Diagnostik beim Polytrauma mit Basisdiagnostik, Organdiagnostik, radiologischer ABC-Regel und Algorithmen zur fruehklinischen Behandlung beruht auf einer prospektiven Polytraumastudie mit

  13. GDP AS THE INDICATOR OF LIVING STANDARDS: THE ANTICIPATION

    Directory of Open Access Journals (Sweden)

    Mr. Maxim V. Klymas

    2016-09-01

    Full Text Available Every state is interested in improving the quality of life of the population. One of the indicators reflecting the living standards is GDP of the country in its general understanding, and in per capita terms. Therefore, increasing the country's GDP is the main goal of any state. GDP growth is limited by many factors. In developing countries with export-oriented and commodity-based economy the main factor is the price of resources in international market prices and the central rate. In this article, we addressed the issue of Russia's GDP, depending on oil prices, as well as the impact of exchange rate of the US dollar to the Russian Federation rouble. We tried to answer the question whether Russia's economy is export-oriented at the commodity sector, and whether it is possible to grow GDP excluding exchange rates.

  14. NASA's Corrosion Technology Laboratory at the Kennedy Space Center: Anticipating, Managing, and Preventing Corrosion

    Science.gov (United States)

    Calle, Luz Marina

    2014-01-01

    Corrosion is the degradation of a material that results from its interaction with the environment. The marine environment at NASAs Kennedy Space Center (KSC) has been documented by ASM International (formerly American Society for Metals) as the most corrosive in the United States. With the introduction of the Space Shuttle in 1981, the already highly corrosive conditions at the launch pads were rendered even more severe by the 70 tons of highly corrosive hydrochloric acid that were generated by the solid rocket boosters. Numerous failures at the launch pads are caused by corrosion.The structural integrity of ground infrastructure and flight hardware is critical to the success, safety, cost, and sustainability of space missions. As a result of fifty years of experience with launch and ground operations in a natural marine environment that is highly corrosive, NASAs Corrosion Technology Laboratory at KSC is a major source of corrosion control expertise in the launch and other environments. Throughout its history, the Laboratory has evolved from what started as an atmospheric exposure facility near NASAs launch pads into a world-wide recognized capability that provides technical innovations and engineering services in all areas of corrosion for NASA and external customers.This presentation will provide a historical overview of the role of NASAs Corrosion Technology in anticipating, managing, and preventing corrosion. One important challenge in managing and preventing corrosion involves the detrimental impact on humans and the environment of what have been very effective corrosion control strategies. This challenge has motivated the development of new corrosion control technologies that are more effective and environmentally friendly. Strategies for improved corrosion protection and durability can have a huge impact on the economic sustainability of human spaceflight operations.

  15. Intelligent image retrieval based on radiology reports

    Energy Technology Data Exchange (ETDEWEB)

    Gerstmair, Axel; Langer, Mathias; Kotter, Elmar [University Medical Center Freiburg, Department of Diagnostic Radiology, Freiburg (Germany); Daumke, Philipp; Simon, Kai [Averbis GmbH, Freiburg (Germany)

    2012-12-15

    To create an advanced image retrieval and data-mining system based on in-house radiology reports. Radiology reports are semantically analysed using natural language processing (NLP) techniques and stored in a state-of-the-art search engine. Images referenced by sequence and image number in the reports are retrieved from the picture archiving and communication system (PACS) and stored for later viewing. A web-based front end is used as an interface to query for images and show the results with the retrieved images and report text. Using a comprehensive radiological lexicon for the underlying terminology, the search algorithm also finds results for synonyms, abbreviations and related topics. The test set was 108 manually annotated reports analysed by different system configurations. Best results were achieved using full syntactic and semantic analysis with a precision of 0.929 and recall of 0.952. Operating successfully since October 2010, 258,824 reports have been indexed and a total of 405,146 preview images are stored in the database. Data-mining and NLP techniques provide quick access to a vast repository of images and radiology reports with both high precision and recall values. Consequently, the system has become a valuable tool in daily clinical routine, education and research. (orig.)

  16. Diagnostic radiology dosimetry: status and trends

    Energy Technology Data Exchange (ETDEWEB)

    Rivera M, T., E-mail: trivera@ipn.mx [IPN, Centro de Investigacion en Ciencia Aplicada y Tecnologia Avanzada, Av. Legaria 694, 11500 Mexico D. F. (Mexico)

    2015-10-15

    Full text: Medical radiation is by far the largest man-made source of public exposure to ionizing radiation. Since 1970 the expression of protection standards shifted from a dose- to a risk-based approach, with dose limits established to yield risks to radiation workers comparable with those for workers in other safe industries. Another hand, worldwide interest in patient dose measurement was stimulated by the publication of Patient Dose Reduction in Diagnostic Radiology by the UK National Radiological Protection Board (NRPB). In response to heightened awareness of the importance of patient dose contributed by radiology procedures, there has been a general trend to effect control of patient doses by applying the principles of optimization coupled with an increase in regulatory enforcement. In this sense, thermoluminescent dosimetry (TLD) has been actively proposed in the last 3 decades thanks to their successful applications in diagnostic radiology. At the same time, it is emerged as the best radiation dosimetry method. The present work presents advantages of thermoluminescent dosimetry for X-ray beams measurements and its optimization. (Author)

  17. Acute radiologic intervention in gastrointestinal bleeding

    Energy Technology Data Exchange (ETDEWEB)

    Lesak, F.

    1986-01-01

    A case of embolization of the gastroduodenal artery in a 38-year old man with chronic pancreatitis and uncontrollable bleeding is presented. The advantage of this interventional radiologic procedure is discussed and in selective cases it seems to be the choice of treatment.

  18. Study on Application of Mobile Radiological Monitor

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    The mobile radiological monitor has been applied for the radiation level of a nuclear facility in 2011. Based on the requirement, the monitor had been improved, it can measure and save the data of gamma-ray and neutron radiation level, the dose rate and the

  19. Adult Education in Radiologic Technology: A Review.

    Science.gov (United States)

    Dowd, Steven B.

    In almost all its aspects, radiologic technology education is adult education. Boyle's (1981) adult learning model has four components: (1) the learner in terms of motivation; (2) learning as a change process; (3) the experiential role of education; and (4) the facilitative role of the educator. Andragogy, as defined by Knowles (1977, 1980), is a…

  20. Curriculum Development and Alignment in Radiologic Technology.

    Science.gov (United States)

    Dowd, Steven B.

    Before developing a curriculum for radiologic technology, one must first attempt to define the term "curriculum." The term is not easy to define precisely, although it does imply the necessity of a master plan that outlines institutional philosophy and goals, course descriptions, description of competency-based evaluation, performance objectives,…

  1. Recommendations for Radiologic Technology Workforce Development.

    Science.gov (United States)

    Collins, Dale E.

    A literature review was conducted to establish criteria for the development and establishment of an associate degree program in radiologic technology in Alaska, where traditional education programs had been slow to respond to the current personnel shortage. The information was obtained from a variety of state, regional, and national organizations…

  2. Curriculum Guidelines for Predoctoral Oral Radiology.

    Science.gov (United States)

    Journal of Dental Education, 1987

    1987-01-01

    The American Association of Dental Schools' guidelines for oral radiology curricula give an overview of the field and its interrelationships with other fields and outline the primary educational objectives, prerequisites, core content, specific behavioral objectives, sequencing, faculty, facilities, and occupational hazards to be considered in…

  3. Poland's syndrome: radiologic findings

    Energy Technology Data Exchange (ETDEWEB)

    Bazzi Junior, Joao Lourenco, E-mail: joaobazzijr@gmail.com [Clinica Via Imagem, Xanxere, SC (Brazil); Matta, Eduardo Simoes da [Pro Circulacao - Clinica de Angiologia, Cirurgia Vascular e Ecografia Vascular, Xanxere, SC (Brazil); De Bortoli, Luciano [Materclinica Materno Infantil, Xanxere, SC (Brazil); De Bortoli, Felipe Raasch [Universidade Catolica de Pelotas (UCPel), Pelotas, RS (Brazil). Fac. of Medicine

    2012-05-15

    Poland's syndrome is a rare non-inherited congenital anomaly. The authors describe the classic radiologic findings of Poland's syndrome by reporting the case of a male four-year old patient with asymmetry of hands and chest, illustrating the fundamental imaging criteria for a conclusive diagnosis. (author)

  4. Computer assisted radiology and surgery. CARS 2010

    Energy Technology Data Exchange (ETDEWEB)

    Anon.

    2010-06-15

    The conference proceedings include contributions to the following topics: (1) CARS Clinical Day: minimally invasive spiral surgery, interventional radiology; (2) CARS - computer assisted radiology and surgery: ophthalmology, stimulation methods, new approaches to diagnosis and therapy; (3) Computer assisted radiology 24th International congress and exhibition: computer tomography and magnetic resonance, digital angiographic imaging, digital radiography, ultrasound, computer assisted radiation therapy, medical workstations, image processing and display; (4) 14th Annual conference of the International Society for computer aided surgery; ENT-CMF head and neck surgery computer-assisted neurosurgery, cardiovascular surgery, image guided liver surgery, abdominal and laparoscopic surgery, computer-assisted orthopedic surgery, image processing and visualization, surgical robotics and instrumentation, surgical modeling, simulation and education; (5) 28th International EuroPACS meeting: image distribution and integration strategies, planning and evaluation, telemedicine and standards, workflow and data flow in radiology; (6) 11th CARS/SPIE/EuroPACS joint workshop on surgical PACS and the digital operating, management and assessment of OR systems and integration; (7) 12th International workshop on computer-aided diagnosis: special session on breast CAD, special session on thoracic CAD, special session on abdominal brain, lumbar spine CAD; (8) 16th computed Maxillofacial imaging congress: computed maxillofacial imaging in dental implantology, orthodontics and dentofacial orthopedics; approaches to 3D maxillofacial imaging; surgical navigation; (9) 2nd EuroNOTES/CARS workshop on NOTES: an interdisciplinary challenge; (10) 2nd EPMA/CARS workshop on personalized medicine and ICT.; (11)poster sessions.

  5. Interventional radiology in the lacrimal drainage system

    Energy Technology Data Exchange (ETDEWEB)

    Ilgit, Erhan T. [Department of Radiology, School of Medicine, Gazi University, Besevler 06510, Ankara (Turkey)]. E-mail: erhanti@gazi.edu.tr; Oenal, Baran [Department of Radiology, School of Medicine, Gazi University, Besevler 06510, Ankara (Turkey); Coskun, Bilgen [Department of Radiology, School of Medicine, Gazi University, Besevler 06510, Ankara (Turkey)

    2005-09-01

    This article presents a review of the interventional radiological procedures in the lacrimal drainage system. Balloon dacryocystoplasty and nasolacrimal polyurethane stent placement are the main fluoroscopically guided interventions for the treatment of epiphora by recanalizing the obstructed LDS. These procedures can also be used for dacryolith removal and lacrimal sac abscess treatment.

  6. Historical Outline of Radiology in Cienfuegos

    Directory of Open Access Journals (Sweden)

    Clara Hilda Vega Blanco

    2016-12-01

    Full Text Available La elevada importancia que ha tenido el desarrollo y utilización adecuada de la radiología (actualmente imagenología para el diagnóstico de diversas afecciones médicas en el presente siglo, especialmente en las últimas décadas, unida a la ausencia de investigaciones relacionadas con el surgimiento y evolución de dicha especialidad en nuestra localidad, sustenta la necesidad de brindar un mayor conocimiento de la historia de la Radiología en Cienfuegos. El objetivo de este estudio es exponer los elementos relacionados con el surgimiento y desarrollo de la Radiología en Cuba, particularmente en Cienfuegos, así como los beneficios que ha traído a la población de esta ciudad. Para ello se realizó un estudio cualitativo, de perfil histórico y descriptivo. Se exponen aspectos relacionados con la asistencia y la docencia del personal no médico y se hace alusión a diversas personalidades relevantes vinculadas a esta actividad. El surgimiento de la Radiología en la provincia se remonta a los primeros años de la segunda década del 1900, sin embargo, no fue hasta después del triunfo de la revolución en 1959, que experimentó un verdadero avance tecnológico.

  7. Radiological aspects of sprained ankle syndrome

    NARCIS (Netherlands)

    Sijbrandij, E.S.

    2002-01-01

    This thesis addresses several problems related to sprained ankle syndrome. The purpose of this thesis is to evaluate the imaging features of sprained ankles, found on new radiological modalities, and to assess the additional diagnostic understanding and treatment planning of helical CT as well as M

  8. Impacts

    NARCIS (Netherlands)

    Hellmuth, M.; Kabat, P.

    2003-01-01

    Even without the impacts of climate change, water managers face prodigious challenges in meeting sustainable development goals. Growing populations need affordable food, water and energy. Industrial development demands a growing share of water resources and contaminates those same resources with its

  9. The relationship between action anticipation and emotion recognition in athletes of open skill sports.

    Science.gov (United States)

    Shih, Yu-Ling; Lin, Chia-Yen

    2016-08-01

    Action anticipation plays an important role in the successful performance of open skill sports, such as ball and combat sports. Evidence has shown that elite athletes of open sports excel in action anticipation. Most studies have targeted ball sports and agreed that information on body mechanics is one of the key determinants for successful action anticipation in open sports. However, less is known about combat sports, and whether facial emotions have an influence on athletes' action anticipation skill. It has been suggested that the understanding of intention in combat sports relies heavily on emotional context. Based on this suggestion, the present study compared the action anticipation performances of taekwondo athletes, weightlifting athletes, and non-athletes and then correlated these with their performances of emotion recognition. This study primarily found that accurate action anticipation does not necessarily rely on the dynamic information of movement, and that action anticipation performance is correlated with that of emotion recognition in taekwondo athletes, but not in weightlifting athletes. Our results suggest that the recognition of facial emotions plays a role in the action prediction in such combat sports as taekwondo.

  10. How Anticipated and Experienced Stigma Can Contribute to Self-Stigma: The Case of Problem Gambling

    Science.gov (United States)

    Hing, Nerilee; Russell, Alex M. T.

    2017-01-01

    The degree to which anticipated and experienced public stigma contribute to self-stigma remains open to debate, and little research has been conducted into the self-stigma of problem gambling. This study aimed to examine which aspects of anticipated and experienced stigma (if any) predict the anticipated level of public stigma associated with problem gambling and the degree of self-stigma felt by people experiencing problem gambling. An online survey of 177 Australians experiencing problem gambling examined whether aspects of the public characterization of problem gambling, anticipated reactions to problem gamblers, and experiences of devaluation and discrimination predicted anticipated level of public stigma and self-stigma. The study found that self-stigma increases with expectations that the public applies a range of negative stereotypes to people with gambling problems, holds demeaning and discriminatory attitudes toward them, and considers them to lead highly disrupted lives. These variables directly predicted anticipated level of public stigma and indirectly predicted self-stigma. These findings lend weight to conceptualizations of self-stigma as an internalization of actual or anticipated public stigma. They also highlight the need for stigma reduction efforts, particularly those that lower negative stereotyping and prejudicial attitudes, to improve currently low rates of help-seeking amongst people with gambling problems. PMID:28270787

  11. Regulatory Mode and Risk-Taking: The Mediating Role of Anticipated Regret.

    Directory of Open Access Journals (Sweden)

    Angelo Panno

    Full Text Available We propose that decision maker's regulatory mode affects risk-taking through anticipated regret. In the Study 1 either a locomotion or an assessment orientation were experimentally induced, and in the Studies 2 and 3 these different orientations were assessed as chronic individual differences. To assess risk-taking we used two behavioral measures of risk: BART and hot-CCT. The results show that experimentally induced assessment orientation--compared to locomotion--leads to decreased risk-taking through increased anticipated regret (Study 1. People chronically predisposed to be in the assessment state take less risk through increased anticipated regret (Study 2 and Study 3. Study 2 results also show a marginally non-significant indirect effect of chronic locomotion mode on BART through anticipated regret. Differently, Study 3 shows that people chronically predisposed to be in the locomotion state take greater risk through decreased anticipated regret, when play a dynamic risk task triggering stronger emotional arousal. Through all three studies, the average effect size for the relationship of assessment with anticipated regret was in the moderate-large range, whereas for risk-taking was in the moderate range. The average effect size for the relationship of locomotion with anticipated regret was in the moderate range, whereas for risk-taking was in the small-moderate range. These results increase our understanding of human behavior under conditions of risk obtaining novel insights into regulatory mode theory and decision science.

  12. Regulatory Mode and Risk-Taking: The Mediating Role of Anticipated Regret.

    Science.gov (United States)

    Panno, Angelo; Lauriola, Marco; Pierro, Antonio

    2015-01-01

    We propose that decision maker's regulatory mode affects risk-taking through anticipated regret. In the Study 1 either a locomotion or an assessment orientation were experimentally induced, and in the Studies 2 and 3 these different orientations were assessed as chronic individual differences. To assess risk-taking we used two behavioral measures of risk: BART and hot-CCT. The results show that experimentally induced assessment orientation--compared to locomotion--leads to decreased risk-taking through increased anticipated regret (Study 1). People chronically predisposed to be in the assessment state take less risk through increased anticipated regret (Study 2 and Study 3). Study 2 results also show a marginally non-significant indirect effect of chronic locomotion mode on BART through anticipated regret. Differently, Study 3 shows that people chronically predisposed to be in the locomotion state take greater risk through decreased anticipated regret, when play a dynamic risk task triggering stronger emotional arousal. Through all three studies, the average effect size for the relationship of assessment with anticipated regret was in the moderate-large range, whereas for risk-taking was in the moderate range. The average effect size for the relationship of locomotion with anticipated regret was in the moderate range, whereas for risk-taking was in the small-moderate range. These results increase our understanding of human behavior under conditions of risk obtaining novel insights into regulatory mode theory and decision science.

  13. Chance findings in skeletal radiology; Zufallsbefunde in der Skelettradiologie

    Energy Technology Data Exchange (ETDEWEB)

    Freyschmidt, Juergen [Beratungsstelle und Referenzzentrum fuer Osteoradiologie, Bremen (Germany)

    2016-08-01

    The book on chance findings in skeletal radiology covers the following issues: Part (I): Introduction - what are chance findings? Part (II); change findings under different radiological modalities: most frequent skeletal radiological change findings: scintiscanning, radiography and CT, MRT, PET and PET/CT. Part (III): case studies: skull; spinal cord; shoulder/pectoral girdle, chest; pelvis and hip joints; upper extremities; lower extremities.

  14. A New Role for Local Police in Radiological Security

    Science.gov (United States)

    2007-09-01

    ORGANIZATIONAL STRUCTURE ..................18 J. THREATENED USES OF RADIOLOGICAL WEAPONS......................20 K. GOIANIA , BRAZIL... GOIANIA , BRAZIL There have been no documented explosions of a radiological dispersal device by terrorists. A radiological incident in Gioania...Accident in Goiania (Vienna, Austria: IAEC, 1988), 13. 22 avoided the region. The total economic damages were estimated to be in the hundreds of

  15. 21 CFR 892.1830 - Radiologic patient cradle.

    Science.gov (United States)

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Radiologic patient cradle. 892.1830 Section 892.1830 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES RADIOLOGY DEVICES Diagnostic Devices § 892.1830 Radiologic patient cradle....

  16. An Overview of Dental Radiology. NCHCT Monograph Series.

    Science.gov (United States)

    Manny, Edward F.; And Others

    This overview of dental radiology contains sections on demographics, equipment, dental radiology quality assurance, efficacy, dental radiology education curricula, professional organizations' guidelines for training and use, and state activities. In section 1 dental personnel, population of dental personnel, employment and earning prospects,…

  17. 21 CFR 892.1940 - Radiologic quality assurance instrument.

    Science.gov (United States)

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Radiologic quality assurance instrument. 892.1940 Section 892.1940 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES RADIOLOGY DEVICES Diagnostic Devices § 892.1940 Radiologic quality...

  18. Medical Student Perceptions of Radiology Use in Anatomy Teaching

    Science.gov (United States)

    Murphy, Kevin P.; Crush, Lee; O'Malley, Eoin; Daly, Fergus E.; Twomey, Maria; O'Tuathaigh, Colm M. P.; Maher, Michael M.; Cryan, John F.; O'Connor, Owen J.

    2015-01-01

    The use of radiology in the teaching of anatomy to medical students is gaining in popularity; however, there is wide variation in how and when radiology is introduced into the curriculum. The authors sought to investigate students' perceptions regarding methods used to depict and teach anatomy and effects of integrated radiology instruction on…

  19. 42 CFR 415.120 - Conditions for payment: Radiology services.

    Science.gov (United States)

    2010-10-01

    ... 42 Public Health 3 2010-10-01 2010-10-01 false Conditions for payment: Radiology services. 415.120... Services to Beneficiaries in Providers § 415.120 Conditions for payment: Radiology services. (a) Services to beneficiaries. The carrier pays for radiology services furnished by a physician to a...

  20. Post-deployment usability evaluation of a radiology workstation

    NARCIS (Netherlands)

    Jorritsma, Wiard; Cnossen, Fokie; Dierckx, Rudi; Oudkerk, Matthijs; van Ooijen, Peter

    2015-01-01

    Objective To evaluate the usability of a radiology workstation after deployment in a hospital. Significance In radiology, it is difficult to perform valid pre-deployment usability evaluations due to the heterogeneity of the user group, the complexity of the radiological workflow, and the complexity

  1. A new lattice hydrodynamic traffic flow model with a consideration of multi-anticipation effect

    Institute of Scientific and Technical Information of China (English)

    Tian Chuan; Sun Di-Hua; Yang Shu-Hong

    2011-01-01

    We present a new multi-anticipation lattice hydrodynamic model based on the traffic anticipation effect in the real world.Applying the linear stability theory,we obtain the linear stability condition of the model.Through nonlinear analysis,we derive the modified Korteweg-de Vries equation to describe the propagating behaviour of a traffic density wave near the critical point.The good agreement between the simulation results and the analytical results shows that the stability of traffic flow can be enhanced when the multi-anticipation effect is considered.

  2. Anticipation in the synchronization of chaotic semiconductor lasers with optical feedback.

    Science.gov (United States)

    Masoller, C

    2001-03-26

    The synchronization of chaotic semiconductor lasers with optical feedback is studied numerically in a one-way coupling configuration, in which a small amount of the intensity of one laser (master laser) is injected coherently into the other (slave laser). A regime of anticipated synchronization is found, in which the intensity of the slave laser is synchronized to the future chaotic intensity of the master laser. Anticipation is robust to small noise and parameter mismatches, but in this case the synchronization is not complete. It is also shown that anticipated synchronization occurs in coupled time-delay systems, when the coupling has a delay that is less than the delay of the systems.

  3. Anticipation and subjectivity: A commentary on an early text by Lacan

    Science.gov (United States)

    Blomme, David; Hoens, Dominiek

    2000-05-01

    In his 1945 paper Lacan discusses a sophism to exemplify crucial moments in the becoming of a human subject. One of these moments is the anticipation of an identity. This anticipatory decision is confirmed in a subsequent logical reasoning. In our paper we will present the sophism in its details and will focus on the essential moment of anticipation. The further (and sometimes implicit) reworking of this notion by Lacan shows that, according to psychoanalysis, anticipation is an important mechanism that involves time and the presence of the other.

  4. Density waves in a lattice hydrodynamic traffic flow model with the anticipation effect

    Institute of Scientific and Technical Information of China (English)

    Zhao Min; Sun Di-Hua; Tian Chuan

    2012-01-01

    By introducing the traffic anticipation effect in the real world into the original lattice hydrodynamic model,we present a new anticipation effect lattice hydrodynamic (AELH) model,and obtain the linear stability condition of the model by applying the linear stability theory.Through nonlinear analysis,we derive the Burgers equation and Korteweg-de Vries (KdV) equation,to describe the propagating behaviour of traffic density waves in the stable and the metastable regions,respectively.The good agreement between simulation results and analytical results shows that the stability of traffic flow can be enhanced when the anticipation effect is considered.

  5. Segmental odontomaxillary dysplasia: clinical, radiological and histological aspects of four cases

    DEFF Research Database (Denmark)

    Becktor, K.B.; Reibel, J.; Vedel, B.;

    2002-01-01

    Segmental odontomaxillary dysplasia, hemimaxillofacial dysplasia, histological and radiological findings......Segmental odontomaxillary dysplasia, hemimaxillofacial dysplasia, histological and radiological findings...

  6. Development of an effective short introductory course in diagnostic radiology.

    Science.gov (United States)

    Messmer, J M; Papp, K K; Hurwitz, J; Cook, D E

    1989-08-01

    As part of a general medical curriculum renewal, a new one-week course in diagnostic radiology was given to students at the beginning of their third year. The course format consisted of didactic presentations to the entire class, a single afternoon session of small group discussions of unknowns, and three daily case-of-the-day unknowns with prizes for correct responses. One hundred fifty-eight students were tested on the first and last days of the course; testing consisted of two parallel 46-item multiple choice questions given in a crossed design. Questions covered radiographic anatomy and pathology as well as proper test ordering. Differences in achievement before and after the course as measured by the pre- and post-tests were highly significant. The class achieved a mean of 27 (59%) correct responses on the pre-test and a mean of 37 (80%) on the post-test (F(1156) = 15.79; P less than .001). The reliability coefficient of the pre- and post-tests was about .30. A course critique was returned by 88 students. There was anticipated variation in the evaluations of the different didactic lecturers. Instructors receiving the highest scores were cited for their enthusiasm, clarity, and the relevance of their presentation. Conversely, those receiving low marks were cited as being unenthusiastic and boring, merely presenting example after example of radiographic abnormalities with little explanation. The afternoon small group discussions were perceived as the best part of the course. Despite the fact that moderator experience ranged from second year resident to full professor, the seminars received uniformly positive comments.

  7. Anticipation of Personal Genomics Data Enhances Interest and Learning Environment in Genomics and Molecular Biology Undergraduate Courses.

    Science.gov (United States)

    Weber, K Scott; Jensen, Jamie L; Johnson, Steven M

    2015-01-01

    An important discussion at colleges is centered on determining more effective models for teaching undergraduates. As personalized genomics has become more common, we hypothesized it could be a valuable tool to make science education more hands on, personal, and engaging for college undergraduates. We hypothesized that providing students with personal genome testing kits would enhance the learning experience of students in two undergraduate courses at Brigham Young University: Advanced Molecular Biology and Genomics. These courses have an emphasis on personal genomics the last two weeks of the semester. Students taking these courses were given the option to receive personal genomics kits in 2014, whereas in 2015 they were not. Students sent their personal genomics samples in on their own and received the data after the course ended. We surveyed students in these courses before and after the two-week emphasis on personal genomics to collect data on whether anticipation of obtaining their own personal genomic data impacted undergraduate student learning. We also tested to see if specific personal genomic assignments improved the learning experience by analyzing the data from the undergraduate students who completed both the pre- and post-course surveys. Anticipation of personal genomic data significantly enhanced student interest and the learning environment based on the time students spent researching personal genomic material and their self-reported attitudes compared to those who did not anticipate getting their own data. Personal genomics homework assignments significantly enhanced the undergraduate student interest and learning based on the same criteria and a personal genomics quiz. We found that for the undergraduate students in both molecular biology and genomics courses, incorporation of personal genomic testing can be an effective educational tool in undergraduate science education.

  8. Anticipating ocean acidification's economic consequences for commercial fisheries

    Science.gov (United States)

    Cooley, Sarah R.; Doney, Scott C.

    2009-06-01

    Ocean acidification, a consequence of rising anthropogenic CO2 emissions, is poised to change marine ecosystems profoundly by increasing dissolved CO2 and decreasing ocean pH, carbonate ion concentration, and calcium carbonate mineral saturation state worldwide. These conditions hinder growth of calcium carbonate shells and skeletons by many marine plants and animals. The first direct impact on humans may be through declining harvests and fishery revenues from shellfish, their predators, and coral reef habitats. In a case study of US commercial fishery revenues, we begin to constrain the economic effects of ocean acidification over the next 50 years using atmospheric CO2 trajectories and laboratory studies of its effects, focusing especially on mollusks. In 2007, the 3.8 billion US annual domestic ex-vessel commercial harvest ultimately contributed 34 billion to the US gross national product. Mollusks contributed 19%, or 748 million, of the ex-vessel revenues that year. Substantial revenue declines, job losses, and indirect economic costs may occur if ocean acidification broadly damages marine habitats, alters marine resource availability, and disrupts other ecosystem services. We review the implications for marine resource management and propose possible adaptation strategies designed to support fisheries and marine-resource-dependent communities, many of which already possess little economic resilience.

  9. IMPACTS !

    CERN Multimedia

    2008-01-01

    (Photo courtesy of Don Davis / NASA)The University of Geneva (UNIGE) and the Ecole Polytechnique Fédérale of Lausanne (EPFL) are organising the 4th series of public lectures on astronomy, on the theme of "Impacts". The schedule is as follows: Il y a 100 ans : une explosion dans la Tunguska – Dr. Frédéric COURBIN, EPFL Les impacts sur Terre – Prof. Didier Queloz, UNIGE La fin des dinosaures – Dr. Stéphane Paltani, UNIGE Wednesday 7 May 2008, from 7.00 p.m. to 9.00 p.m. Auditoire CO1, EPFL, Ecublens Thursday 08 May 2008, from 7.00 p.m. to 9.00 p.m. Auditoire Rouiller, Uni-Dufour, Genève All 3 lectures will be givent each evening! Admission free Information: 022 379 22 00

  10. Diseases of the inner ear. A clinical, radiologic, and pathologic atlas

    Energy Technology Data Exchange (ETDEWEB)

    Motasaddi Zarandy, Masoud [Tehran Univ. of Medical Sciences Amiralam Hospital (Iran). Cochlear Implant Dept.; Rutka, John [Toronto Univ., ON (Canada). Dept. Otolaryngology-Head and Neck, Centre for Advanced Hearing

    2010-07-01

    This book is a comprehensive atlas of the clinical conditions that commonly involve the inner ear and lateral skull base. Each disorder or disease is meticulously and beautifully illustrated, with accompanying informative text. An important feature of the book is that no disorder is described from a single point of view. Instead, the clinical features are linked with both radiologic and pathologic findings to provide an all-encompassing picture of the condition in question. This is feasible because the book is the result of years of intense collaborative teamwork between departments at the University of Toronto and the Tehran University of Medical Sciences, and includes many clinical and pathologic images that could only be acquired in major referral units. It is anticipated that this atlas will assist greatly in improving collaboration between clinicians and surgeons in the diagnostic, therapeutic, and surgical management of disorders in this challenging area. (orig.)

  11. Volumetric CT-images improve testing of radiological image interpretation skills

    Energy Technology Data Exchange (ETDEWEB)

    Ravesloot, Cécile J., E-mail: C.J.Ravesloot@umcutrecht.nl [Radiology Department at University Medical Center Utrecht, Heidelberglaan 100, 3508 GA Utrecht, Room E01.132 (Netherlands); Schaaf, Marieke F. van der, E-mail: M.F.vanderSchaaf@uu.nl [Department of Pedagogical and Educational Sciences at Utrecht University, Heidelberglaan 1, 3584 CS Utrecht (Netherlands); Schaik, Jan P.J. van, E-mail: J.P.J.vanSchaik@umcutrecht.nl [Radiology Department at University Medical Center Utrecht, Heidelberglaan 100, 3508 GA Utrecht, Room E01.132 (Netherlands); Cate, Olle Th.J. ten, E-mail: T.J.tenCate@umcutrecht.nl [Center for Research and Development of Education at University Medical Center Utrecht, Heidelberglaan 100, 3508 GA Utrecht (Netherlands); Gijp, Anouk van der, E-mail: A.vanderGijp-2@umcutrecht.nl [Radiology Department at University Medical Center Utrecht, Heidelberglaan 100, 3508 GA Utrecht, Room E01.132 (Netherlands); Mol, Christian P., E-mail: C.Mol@umcutrecht.nl [Image Sciences Institute at University Medical Center Utrecht, Heidelberglaan 100, 3508 GA Utrecht (Netherlands); Vincken, Koen L., E-mail: K.Vincken@umcutrecht.nl [Image Sciences Institute at University Medical Center Utrecht, Heidelberglaan 100, 3508 GA Utrecht (Netherlands)

    2015-05-15

    Rationale and objectives: Current radiology practice increasingly involves interpretation of volumetric data sets. In contrast, most radiology tests still contain only 2D images. We introduced a new testing tool that allows for stack viewing of volumetric images in our undergraduate radiology program. We hypothesized that tests with volumetric CT-images enhance test quality, in comparison with traditional completely 2D image-based tests, because they might better reflect required skills for clinical practice. Materials and methods: Two groups of medical students (n = 139; n = 143), trained with 2D and volumetric CT-images, took a digital radiology test in two versions (A and B), each containing both 2D and volumetric CT-image questions. In a questionnaire, they were asked to comment on the representativeness for clinical practice, difficulty and user-friendliness of the test questions and testing program. Students’ test scores and reliabilities, measured with Cronbach's alpha, of 2D and volumetric CT-image tests were compared. Results: Estimated reliabilities (Cronbach's alphas) were higher for volumetric CT-image scores (version A: .51 and version B: .54), than for 2D CT-image scores (version A: .24 and version B: .37). Participants found volumetric CT-image tests more representative of clinical practice, and considered them to be less difficult than volumetric CT-image questions. However, in one version (A), volumetric CT-image scores (M 80.9, SD 14.8) were significantly lower than 2D CT-image scores (M 88.4, SD 10.4) (p < .001). The volumetric CT-image testing program was considered user-friendly. Conclusion: This study shows that volumetric image questions can be successfully integrated in students’ radiology testing. Results suggests that the inclusion of volumetric CT-images might improve the quality of radiology tests by positively impacting perceived representativeness for clinical practice and increasing reliability of the test.

  12. The role of teleradiology in emergency radiology provision.

    Science.gov (United States)

    Kalyanpur, Arjun

    2014-01-01

    Teleradiology has had a major impact in decreasing report turnaround time, and in improving service levels in the emergency setting. Teleradiology in the emergency setting is usually associated with a strong peer review and quality assurance process. It has generated a cadre of specialized generalists, who excel in acute care interpretation. Hence report quality is enhanced. By using the centralized reading room coupled with the night-day model, radiologist productivity is increased and healthcare costs are reduced. Communication levels between clinicians and radiologists remain high, commensurate with on-site radiology. The cons are related to insufficient adherence to regulations, corporatization and predatory practices, which are economic and investor-driven rather than in the interests of patient care. Insufficient clinical history and large imaging datasets present a challenge.

  13. Anticipated Electrical Environment Within Permanently Shadowed Lunar Craters

    Science.gov (United States)

    Farrell, W. M.; Stubbs, T. J.; Halekas, J. S.; Killen, R. M.; Delory, G. T.; Collier, M. R.; Vondrak, R. R.

    2010-01-01

    Shadowed locations ncar the lunar poles arc almost certainly electrically complex regions. At these locations near the terminator, the local solar wind flows nearly tangential to the surface and interacts with large-scale topographic features such as mountains and deep large craters, In this work, we study the solar wind orographic effects from topographic obstructions along a rough lunar surface, On the leeward side of large obstructions, plasma voids are formed in the solar wind because of the absorption of plasma on the upstream surface of these obstacles, Solar wind plasma expands into such voids) producing an ambipolar potential that diverts ion flow into the void region. A surface potential is established on these leeward surfaces in order to balance the currents from the expansion-limited electron and ion populations, Wc find that there arc regions ncar the leeward wall of the craters and leeward mountain faces where solar wind ions cannot access the surface, leaving an electron-rich plasma previously identified as an "electron cloud." In this case, some new current is required to complete the closure for current balance at the surface, and we propose herein that lofted negatively charged dust is one possible (nonunique) compensating current source. Given models for both ambipolar and surface plasma processes, we consider the electrical environment around the large topographic features of the south pole (including Shoemaker crater and the highly varied terrain near Nobile crater), as derived from Goldstone radar data, We also apply our model to moving and stationary objects of differing compositions located on the surface and consider the impact of the deflected ion flow on possible hydrogen resources within the craters

  14. Blunted ventral striatal responses to anticipated rewards foreshadow problematic drug use in novelty-seeking adolescents

    Science.gov (United States)

    Büchel, Christian; Peters, Jan; Banaschewski, Tobias; Bokde, Arun L. W.; Bromberg, Uli; Conrod, Patricia J.; Flor, Herta; Papadopoulos, Dimitri; Garavan, Hugh; Gowland, Penny; Heinz, Andreas; Walter, Henrik; Ittermann, Bernd; Mann, Karl; Martinot, Jean-Luc; Paillère-Martinot, Marie-Laure; Nees, Frauke; Paus, Tomas; Pausova, Zdenka; Poustka, Luise; Rietschel, Marcella; Robbins, Trevor W.; Smolka, Michael N.; Gallinat, Juergen; Schumann, Gunter; Knutson, Brian; Arroyo, Mercedes; Artiges, Eric; Aydin, Semiha; Bach, Christine; Barbot, Alexis; Barker, Gareth; Bruehl, Ruediger; Cattrell, Anna; Constant, Patrick; Crombag, Hans; Czech, Katharina; Dalley, Jeffrey; Decideur, Benjamin; Desrivieres, Sylvane; Fadai, Tahmine; Fauth-Buhler, Mira; Feng, Jianfeng; Filippi, Irinia; Frouin, Vincent; Fuchs, Birgit; Gemmeke, Isabel; Genauck, Alexander; Hanratty, Eanna; Heinrichs, Bert; Heym, Nadja; Hubner, Thomas; Ihlenfeld, Albrecht; Ing, Alex; Ireland, James; Jia, Tianye; Jones, Jennifer; Jurk, Sarah; Kaviani, Mehri; Klaassen, Arno; Kruschwitz, Johann; Lalanne, Christophe; Lanzerath, Dirk; Lathrop, Mark; Lawrence, Claire; Lemaitre, Hervé; Macare, Christine; Mallik, Catherine; Mar, Adam; Martinez-Medina, Lourdes; Mennigen, Eva; de Carvahlo, Fabiana Mesquita; Mignon, Xavier; Millenet, Sabina; Miranda, Ruben; Müller, Kathrin; Nymberg, Charlotte; Parchetka, Caroline; Pena-Oliver, Yolanda; Pentilla, Jani; Poline, Jean-Baptiste; Quinlan, Erin Burke; Rapp, Michael; Ripke, Stephan; Ripley, Tamzin; Robert, Gabriel; Rogers, John; Romanowski, Alexander; Ruggeri, Barbara; Schmäl, Christine; Schmidt, Dirk; Schneider, Sophia; Schubert, Florian; Schwartz, Yannick; Sommer, Wolfgang; Spanagel, Rainer; Speiser, Claudia; Spranger, Tade; Stedman, Alicia; Stephens, Dai; Strache, Nicole; Ströhle, Andreas; Struve, Maren; Subramaniam, Naresh; Theobald, David; Vetter, Nora; Vulser, Helene; Weiss, Katharina; Whelan, Robert; Williams, Steve; Xu, Bing; Yacubian, Juliana; Yu, Tao; Ziesch, Veronika

    2017-01-01

    Novelty-seeking tendencies in adolescents may promote innovation as well as problematic impulsive behaviour, including drug abuse. Previous research has not clarified whether neural hyper- or hypo-responsiveness to anticipated rewards promotes vulnerability in these individuals. Here we use a longitudinal design to track 144 novelty-seeking adolescents at age 14 and 16 to determine whether neural activity in response to anticipated rewards predicts problematic drug use. We find that diminished BOLD activity in mesolimbic (ventral striatal and midbrain) and prefrontal cortical (dorsolateral prefrontal cortex) regions during reward anticipation at age 14 predicts problematic drug use at age 16. Lower psychometric conscientiousness and steeper discounting of future rewards at age 14 also predicts problematic drug use at age 16, but the neural responses independently predict more variance than psychometric measures. Together, these findings suggest that diminished neural responses to anticipated rewards in novelty-seeking adolescents may increase vulnerability to future problematic drug use. PMID:28221370

  15. Students' anticipated situational engagement: the roles of teacher behavior, personal engagement, and gender.

    Science.gov (United States)

    Thijs, Jochem; Verkuyten, Maykel

    2009-09-01

    Among 9th-grade students (248 girls, 255 boys) from a large multiethnic school, the authors examined 2 aspects of anticipated situational engagement in relation to 3 types of hypothetical teacher behavior: authoritarian, authoritative, permissive. Furthermore, the authors investigated the moderating roles of students' personal (trait-like) engagement and gender. Multilevel analyses showed differential effects of teacher behavior type. Anticipated situational engagement was generally highest with the authoritative teacher and lowest with the authoritarian teacher. However, students' personal engagement and gender qualified these effects. The effects of the authoritative and authoritarian teachers versus the permissive teachers on anticipated situational engagement were more positive (or less negative) for students with high versus low personal engagement. Also, the positive effects of the authoritative and permissive teachers versus the authoritarian teacher were stronger for female students than for male students. Results show that anticipated situational engagement should be understood by examining the combined influences of contextual and individual characteristics.

  16. Perturbation and Stability Analysis of the Multi-Anticipative Intelligent Driver Model

    Science.gov (United States)

    Chen, Xi-Qun; Xie, Wei-Jun; Shi, Jing; Shi, Qi-Xin

    This paper discusses three kinds of IDM car-following models that consider both the multi-anticipative behaviors and the reaction delays of drivers. Here, the multi-anticipation comes from two ways: (1) the driver is capable of evaluating the dynamics of several preceding vehicles, and (2) the autonomous vehicles can obtain the velocity and distance information of several preceding vehicles via inter-vehicle communications. In this paper, we study the stability of homogeneous traffic flow. The linear stability analysis indicates that the stable region will generally be enlarged by the multi-anticipative behaviors and reduced by the reaction delays. The temporal amplification and the spatial divergence of velocities for local perturbation are also studied, where the results further prove this conclusion. Simulation results also show that the multi-anticipative behaviors near the bottleneck will lead to a quicker backwards propagation of oscillations.

  17. How Stakeholder Sensing and Anticipations Shape the Firm’s Strategic Response Capability

    DEFF Research Database (Denmark)

    Hallin, Carina Antonia; Andersen, Torben Juul; Ooi, Can-Seng

    We outline a strategic response capability framework drawing on cognitive neuroscience to explain stakeholder sensing and anticipations as essential input to environmental analysis. Stakeholders receive stimuli from ongoing interactions with the firm and thereby sense current environmental changes...

  18. Predicting dynamic behavior via anticipating synchronization in coupled pendulum-like systems

    Science.gov (United States)

    Xu, Shiyun; Yang, Ying

    2009-08-01

    In this paper, the regime of anticipating synchronization (sometimes called predicted synchronization) in a class of nonlinear dynamical systems is investigated by testing the global asymptotical stability of time-delayed error dynamics. Sufficient conditions in terms of linear matrix inequalities are established for anticipating synchronization between such systems with and without state time delay. These results allow one to predict the dynamic behavior of the systems by using a copy of the same system that performs as a slave. Moreover, the cascaded anticipating synchronization is concerned such that several slave systems could anticipate the same master system with different delays. Concrete applications to phase-locked loops demonstrate the applicability and validity of the proposed results.

  19. Neurobiological underpinnings of reward anticipation and outcome evaluation in gambling disorder

    DEFF Research Database (Denmark)

    Linnet, Jakob

    2014-01-01

    Gambling disorder is characterized by persistent and recurrent maladaptive gambling behavior, which leads to clinically significant impairment or distress. The disorder is associated with dysfunctions in the dopamine system. The dopamine system codes reward anticipation and outcome evaluation. Re...

  20. The role of medial frontal gyrus in action anticipation in professional badminton players

    Directory of Open Access Journals (Sweden)

    Huan Xu

    2016-11-01

    Full Text Available Some studies show that the medial frontal cortex is associated with more skilled action anticipation, while similar findings are not observed in some other studies, possibly due to the stimuli employed and the participants used as the control group. In addition, no studies have investigated whether there is any functional connectivity between the medial frontal cortex and other brain regions in more skilled action anticipation. Therefore, the present study aimed to re-investigate how the medial frontal cortex is involved in more skilled action anticipation by circumventing the limitations of previous research and to investigate that the medial frontal cortex functionally connected with other brain regions involved in action processing in more skilled action anticipation. To this end, professional badminton players and novices were asked to anticipate the landing position of the shuttlecock while watching badminton match videos or to judge the gender of the players in the matches. The video clips ended right at the point that the shuttlecock and the racket came into contact to reduce the effect of information about the trajectory of the shuttlecock. Novices who lacked training and watching experience were recruited for the control group to reduce the effect of sport-related experience on the medial frontal cortex. Blood oxygenation level-dependent (BOLD activation was assessed by means of functional magnetic resonance imaging (fMRI. Compared to novices, badminton players exhibited stronger activation in the left medial frontal cortex during action anticipation and greater functional connectivity between left medial frontal cortex and some other brain regions (e.g., right posterior cingulate cortex. Therefore, the present study supports the position that the medial frontal cortex plays a role in more skilled action anticipation and that there is a specific brain network for more skilled action anticipation that involves right posterior cingulate