WorldWideScience

Sample records for psychiatric technology radiation

  1. Psychiatric disorders after radiation exposure

    Energy Technology Data Exchange (ETDEWEB)

    Kokai, Masahiro [Hyogo Coll. of Medicine, Nishinomiya (Japan); Soejima, Toshinori; Wang, Shangdong; Shinfuku, Naotaka

    2001-04-01

    This review focuses on the mental and psychological effects of medical radiation exposure, the nuclear accident at Three Mile Island, the Chernobyl disaster, atomic bomb explosions at Nagasaki and Hiroshima, and accidents at nuclear power plants and nuclear waste plants. Studies have shown that anxiety about the adverse effects of radiation in medicine (such as infertility, carcinogenicity, and genotoxicity) and fear for exposure has caused psychiatric disorders. Several studies on the mental health effects of the nuclear accident at Three Mile Island were conducted, and the results indicated that psychiatric distress persisted for a certain period of time, particularly in pregnant women and women who have children, even when no evidence of substantial of radiation exposure is seen clinically. The psychological consequences of the Chernobyl disaster have been investigated continuously, and various problems, e.g., acute stress reaction, neurosis, and psychosis, have been identified, although no physical damage due to the radiation or PTSD have been reported. By contrast, PTSD has been seen in survivors of the Nagasaki and Hiroshima nuclear explosions. A study in Ohio, (United States), which has a nuclear waste plant, investigated PTSD in people living near the plant and found that the symptom level was mild. In general, the most common symptoms among people with mental and psychological disorders due to radiation exposure are depression and anxiety, with many people having associated somatoform disorders, and some people complain of PTSD. Vague anxiety and fear of sequelae, regardless of the exposure dose, appears to cause such psychiatric disorders. Although it is rare for psychiatrists to see such cases of psychiatric disorders due to radiation exposure, their number may increase as psychiatric services become more widely available. (K.H.)

  2. Technological Advances in Psychiatric Nursing: An update.

    Science.gov (United States)

    Bostrom, Andrea C

    2016-06-01

    Understanding and treating mental illness has improved in many ways as a result of the fast pace of technological advances. The technologies that have the greatest potential impact are those that (1) increase the knowledge of how the brain functions and changes based on interventions, (2) have the potential to personalize interventions based on understanding genetic factors of drug metabolism and pharmacodynamics, and (3) use information technology to provide treatment in the absence of an adequate mental health workforce. Technologies are explored for psychiatric nurses to consider. Psychiatric nurses are encouraged to consider the experiences of psychiatric patients, including poor health, stigmatization, and suffering. Copyright © 2016 Elsevier Inc. All rights reserved.

  3. Radiation technology in Vietnam

    Energy Technology Data Exchange (ETDEWEB)

    Vo Van Thuan [Institute for Nuclear Science and Technique, VAEC, Hanoi (Viet Nam)

    2001-03-01

    Most of researches and developments in the field of radiation technology that have completed in a decade before 1995 were concentrated to sterilization and food irradiation. A series of medical devices and products were the main commodities for research and application trials. Also, many kind of food have attracted the scientists and technologists to investigate the application and commercialization of irradiated food. In addition, the radiation technology also was utilized for processing of non-food items including herbs, medicinal produces, and tobacco material. Since 1996 VAEC and INST has realized the important role of radiation processing on natural polymers. Hence, along with the commercialization of radiation technology, three research teams were established for the target. This report reviews the recent activities and achievements on radiation technology in the country emphasizing on the radiation processing of polysaccharides. A number of polysaccharides, which originated from bio-/agro-wastes such as seaweed, shrimp shells, lignocelluloses, was modified or degraded by irradiation to prepare hydrogel and bio-active material using for health-care and crop production. (author)

  4. Cognitive, psychological and psychiatric effects of ionizing radiation exposure.

    Science.gov (United States)

    Marazziti, D; Baroni, S; Catena-Dell'Osso, M; Schiavi, E; Ceresoli, D; Conversano, C; Dell'Osso, L; Picano, E

    2012-01-01

    Radiation exposure leads to an increased risk for cancer and, possibly, additional ill-defined non-cancer risk, including atherosclerotic, cardiovascular, cerebro-vascular and neurodegenerative effects. Studies of brain irradiation in animals and humans provide evidence of apoptosis, neuro-inflammation, loss of oligo-dendrocytes precursors and myelin sheaths, and irreversible damage to the neural stem compartment with long-term impairment of adult neurogenesis. With the present paper we aim to present a comprehensive review on brain effects of radiation exposure, with a special focus on its impact on cognitive processes and psychological functions, as well as on their possible role in the pathophysiology of different psychiatric disorders.

  5. 77 FR 55199 - Radiation Detection Technologies, Inc.

    Science.gov (United States)

    2012-09-07

    ... Radiation Detection Technologies, Inc. AGENCY: Office of the General Counsel, Department of Energy. ACTION... to Radiation Detection Technologies, Inc., of Manhattan, Kansas, an exclusive license to practice the... below no later than October 9, 2012. ADDRESSES: Office of the Assistant General Counsel for Technology...

  6. Exposure to non-ionizing electromagnetic radiation from mobile telephony and the association with psychiatric symptoms.

    Science.gov (United States)

    Silva, Denize Francisca da; Barros, Warley Rocha; Almeida, Maria da Conceição Chagas de; Rêgo, Marco Antônio Vasconcelos

    2015-10-01

    The aim of this study was to investigate the association between exposure to non-ionizing electromagnetic radiation from mobile phone base stations and psychiatric symptoms. In a cross-sectional study in Salvador, Bahia State, Brazil, 440 individuals were interviewed. Psychiatric complaints and diagnoses were the dependent variables and distance from the individual's residence to the base station was considered the main independent variable. Hierarchical logistic regression analysis was conducted to assess confounding. An association was observed between psychiatric symptoms and residential proximity to the base station and different forms of mobile phone use (making calls with weak signal coverage, keeping the mobile phone close to the body, having two or more chips, and never turning off the phone while sleeping), and with the use of other electronic devices. The study concluded that exposure to electromagnetic radiation from mobile phone base stations and other electronic devices was associated with psychiatric symptoms, independently of gender, schooling, and smoking status. The adoption of precautionary measures to reduce such exposure is recommended.

  7. [THE CLINICAL ORGANIZATIONAL SUBSTANTIATION OF NEW TECHNOLOGY OF HOSPITAL PSYCHIATRIC CARE].

    Science.gov (United States)

    Podsevatkin, V G; Blinov, D S; Podsevatkin, D V; Podsevatkina, S V; Smirnova, O A

    2015-01-01

    The new technology of hospital psychiatric care, developed and implemented in the Mordovia republican clinical hospital, permits resolving problems of hospitalism, lethality, pharmaceutical resistance and others. The essence of this technology is in staging of hospital care under condition of intensification and standardization of curative diagnostic process, implementation of complex approach to treatment of psychiatric disorders. The patient sequentially passes through three stages: intensive diagnostics and intensive treatment (intensive care department, intensive therapy department), supportive therapy (general psychiatric department); rehabilitation measures (curative rehabilitative department). The concentration of resources at the first stage, application of intensive therapy techniques permit in the shortest period to arrest acute psychotic symptomatic. The described new technology of hospital psychiatric care permits enhancing effectiveness of treatment, significantly shorten period of hospitalization (37.5 days), to obtain lasting and qualitative remission, to rehabilitate most fully social working status of patient and to significantly decrease lethality.

  8. Technology for Innovation in Radiation Oncology

    Energy Technology Data Exchange (ETDEWEB)

    Chetty, Indrin J. [Department of Radiation Oncology, Henry Ford Hospital, Detroit, Michigan (United States); Martel, Mary K., E-mail: mmartel@mdanderson.org [Department of Radiation Physics, University of Texas MD Anderson Cancer Center, Houston, Texas (United States); Jaffray, David A. [Departments of Radiation Oncology and Medical Biophysics, Princess Margaret Hospital, Toronto, Ontario (Canada); Benedict, Stanley H. [Department of Radiation Oncology, University of California – Davis Cancer Center, Sacramento, California (United States); Hahn, Stephen M. [Department of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas (United States); Berbeco, Ross [Department of Radiation Oncology, Brigham and Women' s Hospital, Boston, Massachusetts (United States); Deye, James [Radiation Research Programs, National Cancer Institute, Bethesda, Maryland (United States); Jeraj, Robert [Department of Medical Physics, University of Wisconsin, Madison, Wisconsin (United States); Kavanagh, Brian [Department of Radiation Oncology, University of Colorado, Aurora, Colorado (United States); Krishnan, Sunil [Department of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas (United States); Lee, Nancy [Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, New York (United States); Low, Daniel A. [Department of Radiation Oncology, University of California – Los Angeles, Los Angeles, California (United States); Mankoff, David [Department of Radiology, University of Washington Medical School, Seattle, Washington (United States); Marks, Lawrence B. [Department of Radiation Oncology, University of North Carolina Hospitals, Chapel Hill, North Carolina (United States); Ollendorf, Daniel [Institute for Clinical and Economic Review, Boston, Massachusetts (United States); and others

    2015-11-01

    Radiation therapy is an effective, personalized cancer treatment that has benefited from technological advances associated with the growing ability to identify and target tumors with accuracy and precision. Given that these advances have played a central role in the success of radiation therapy as a major component of comprehensive cancer care, the American Society for Radiation Oncology (ASTRO), the American Association of Physicists in Medicine (AAPM), and the National Cancer Institute (NCI) sponsored a workshop entitled “Technology for Innovation in Radiation Oncology,” which took place at the National Institutes of Health (NIH) in Bethesda, Maryland, on June 13 and 14, 2013. The purpose of this workshop was to discuss emerging technology for the field and to recognize areas for greater research investment. Expert clinicians and scientists discussed innovative technology in radiation oncology, in particular as to how these technologies are being developed and translated to clinical practice in the face of current and future challenges and opportunities. Technologies encompassed topics in functional imaging, treatment devices, nanotechnology, and information technology. The technical, quality, and safety performance of these technologies were also considered. A major theme of the workshop was the growing importance of innovation in the domain of process automation and oncology informatics. The technologically advanced nature of radiation therapy treatments predisposes radiation oncology research teams to take on informatics research initiatives. In addition, the discussion on technology development was balanced with a parallel conversation regarding the need for evidence of efficacy and effectiveness. The linkage between the need for evidence and the efforts in informatics research was clearly identified as synergistic.

  9. Technology for Innovation in Radiation Oncology.

    Science.gov (United States)

    Chetty, Indrin J; Martel, Mary K; Jaffray, David A; Benedict, Stanley H; Hahn, Stephen M; Berbeco, Ross; Deye, James; Jeraj, Robert; Kavanagh, Brian; Krishnan, Sunil; Lee, Nancy; Low, Daniel A; Mankoff, David; Marks, Lawrence B; Ollendorf, Daniel; Paganetti, Harald; Ross, Brian; Siochi, Ramon Alfredo C; Timmerman, Robert D; Wong, John W

    2015-11-01

    Radiation therapy is an effective, personalized cancer treatment that has benefited from technological advances associated with the growing ability to identify and target tumors with accuracy and precision. Given that these advances have played a central role in the success of radiation therapy as a major component of comprehensive cancer care, the American Society for Radiation Oncology (ASTRO), the American Association of Physicists in Medicine (AAPM), and the National Cancer Institute (NCI) sponsored a workshop entitled "Technology for Innovation in Radiation Oncology," which took place at the National Institutes of Health (NIH) in Bethesda, Maryland, on June 13 and 14, 2013. The purpose of this workshop was to discuss emerging technology for the field and to recognize areas for greater research investment. Expert clinicians and scientists discussed innovative technology in radiation oncology, in particular as to how these technologies are being developed and translated to clinical practice in the face of current and future challenges and opportunities. Technologies encompassed topics in functional imaging, treatment devices, nanotechnology, and information technology. The technical, quality, and safety performance of these technologies were also considered. A major theme of the workshop was the growing importance of innovation in the domain of process automation and oncology informatics. The technologically advanced nature of radiation therapy treatments predisposes radiation oncology research teams to take on informatics research initiatives. In addition, the discussion on technology development was balanced with a parallel conversation regarding the need for evidence of efficacy and effectiveness. The linkage between the need for evidence and the efforts in informatics research was clearly identified as synergistic. Copyright © 2015 Elsevier Inc. All rights reserved.

  10. Development of Radiation Breeding Technology of Macroalgae

    Energy Technology Data Exchange (ETDEWEB)

    Choi, Jongil; Park, J. H.; Song, B. S.; Kim, J. K.; Kim, J. H.; Lee, H. J.; Yang, H. Y.

    2013-01-15

    Macroalgae has been utilized as food material from long time ago, and recently newly recognized as functional materials and the source of bio-fuel. But, the study on the macroalgae is just beginning and the study on radiation effect and radiation breeding technology was not reported. In this study, the effect of radiation on the macroalgae Porphyra was investigated for the development of new mutant strains. Prphyra was successively cultivated in the laboratory chamber with optimized growth condition. Also, the radiation sensitivity of Porphyra was determined. To develop the mutant strain, irradiated Porphyra strains were screened for better growth and higher resistance against oxidative stress. The selected Porphyra was further cultivated in ocean site. Also, several genes from mutant Porphyra was heterologous expressed and studied for its dunctionality. This results can provide mutation technology of macroalgae and further contribute in the activation of fishery industry and national health enhancement.

  11. Radiation safety assessment and development of environmental radiation monitoring technology

    CERN Document Server

    Choi, B H; Kim, S G

    2002-01-01

    The Periodic Safety Review(PSR) of the existing nuclear power plants is required every ten years according to the recently revised atomic energy acts. The PSR of Kori unit 1 and Wolsong unit 1 that have been operating more than ten years is ongoing to comply the regulations. This research project started to develop the techniques necessary for the PSR. The project developed the following four techniques at the first stage for the environmental assessment of the existing plants. 1) Establishment of the assessment technology for contamination and accumulation trends of radionuclides, 2) alarm point setting of environmental radiation monitoring system, 3) Development of Radiation Safety Evaluation Factor for Korean NPP, and 4) the evaluation of radiation monitoring system performance and set-up of alarm/warn set point. A dynamic compartment model to derive a relationship between the release rates of gas phase radionuclides and the concentrations in the environmental samples. The model was validated by comparing ...

  12. Final Report: Radiation Health Technology Curriculum.

    Science.gov (United States)

    Marshall, Dwight A.; Hunt, Hiram M.

    This report describes all aspects of a radiation health technology program at a lower-division college level. Such a program must include certain basic courses, plus supplementary ones to meet the needs of local employers. To implement and sustain a curriculum, the college must (1) determine the need for it, (2) establish its objectives, (3)…

  13. Implementation of information technology in nursing practice - challenge for management in psychiatric nursing.

    Science.gov (United States)

    Koivunen, Marita; Hätönen, Heli; Välimäki, Maritta

    2009-01-01

    The implementation of information technology (IT) applications in nursing practice requires systematic investments and guidance. A collaborative organisational culture, and systematic and close clinical and administrative cooperation during the implementation process support the acceptance of IT among users in organisation. Although knowledge of IT projects management exists, there is a lack of knowledge about nursing management in IT implementation processes in psychiatric nursing.

  14. Open Source Radiation Hardened by Design Technology

    Science.gov (United States)

    Shuler, Robert

    2016-01-01

    The proposed technology allows use of the latest microcircuit technology with lowest power and fastest speed, with minimal delay and engineering costs, through new Radiation Hardened by Design (RHBD) techniques that do not require extensive process characterization, technique evaluation and re-design at each Moore's Law generation. The separation of critical node groups is explicitly parameterized so it can be increased as microcircuit technologies shrink. The technology will be open access to radiation tolerant circuit vendors. INNOVATION: This technology would enhance computation intensive applications such as autonomy, robotics, advanced sensor and tracking processes, as well as low power applications such as wireless sensor networks. OUTCOME / RESULTS: 1) Simulation analysis indicates feasibility. 2)Compact voting latch 65 nanometer test chip designed and submitted for fabrication -7/2016. INFUSION FOR SPACE / EARTH: This technology may be used in any digital integrated circuit in which a high level of resistance to Single Event Upsets is desired, and has the greatest benefit outside low earth orbit where cosmic rays are numerous.

  15. Semiconductor radiation detectors technology and applications

    CERN Document Server

    2018-01-01

    The aim of this book is to educate the reader on radiation detectors, from sensor to read-out electronics to application. Relatively new detector materials, such as CdZTe and Cr compensated GaAs, are introduced, along with emerging applications of radiation detectors. This X-ray technology has practical applications in medical, industrial, and security applications. It identifies materials based on their molecular composition, not densities as the traditional transmission equipment does. With chapters written by an international selection of authors from both academia and industry, the book covers a wide range of topics on radiation detectors, which will satisfy the needs of both beginners and experts in the field.

  16. Energy Savings Potential of Radiative Cooling Technologies

    Energy Technology Data Exchange (ETDEWEB)

    Fernandez, Nicholas [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Wang, Weimin [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Alvine, Kyle J. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Katipamula, Srinivas [Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

    2015-11-30

    Pacific Northwest National Laboratory (PNNL), with funding from the U.S. Department of Energy’s (DOE’s) Building Technologies Program (BTP), conducted a study to estimate, through simulation, the potential cooling energy savings that could be achieved through novel approaches to capturing free radiative cooling in buildings, particularly photonic ‘selective emittance’ materials. This report documents the results of that study.

  17. Recent developments in radiation field control technology

    Energy Technology Data Exchange (ETDEWEB)

    Wood, C.J. [Electric Power Research Institute, Palo Alto, CA (United States)

    1995-03-01

    The U.S. nuclear power industry has been remarkably successful in reducing worker radiation exposures over the past ten years. There has been over a fourfold reduction in the person-rem incurred for each MW.year of electric power generated: from 1.8 in 1980, to only 0.39 person-rems in 1991 and 1992. Preliminary data for 1993 are even lower: approximately 0.37 person-rem.MW.year. Despite this substantial improvement, challenges for the industry remain. Individual exposure limits have been tightened in ICRP 60 and there will be increased requirements for special maintenance work as plants age, suggesting that vigorous efforts with be increased requirements for special maintenance work as plants age, suggesting that vigorous efforts will be required to meet the industry goals for 1995. Reducing out-of-core radiation fields offer the best chance of continuing the downward trend in exposures. To assist utilities select the most economic technology for their specific plants, EPRI has published a manual capturing worldwide operating experience with radiation-field control techniques (TR-100265). No one method will suffice, but implementing suitable combinations from this collection will enable utilities to achieve their exposure goals. Radiation reduction is generally cost-effective: outages are shorter, manpower requirements are reduced and work quality is improved. Despite the up front costs, the benefits over the following 1-3 years typically outweigh the expenses.

  18. Development of Food Preservation and Processing Technologies by Radiation Technology

    Energy Technology Data Exchange (ETDEWEB)

    Byun, Myung Woo; Lee, Ju Won; Kim, Jae Hun (and others)

    2007-07-15

    To secure national food resources, development of energy-saving food processing and preservation technologies, establishment of method on improvement of national health and safety by development of alternative techniques of chemicals and foundation of the production of hygienic food and public health related products by irradiation technology were studied. Results at current stage are following: As the first cooperative venture business technically invested by National Atomic Research Development Project, institute/company's [technology-invested technology foundation No. 1] cooperative venture, Sun-BioTech Ltd., was founded and stated its business. This suggested new model for commercialization and industrialization of the research product by nation-found institute. From the notice of newly approved product list about irradiated food, radiation health related legal approval on 7 food items was achieved from the Ministry of health and wellfare, the Korea Food and Drug Administration, and this contributed the foundation of enlargement of practical use of irradiated food. As one of the foundation project for activation of radiation application technology for the sanitation and secure preservation of special food, such as military meal service, food service for patient, and food for sports, and instant food, such as ready-to-eat/ready-to-cook food, the proposal for radiation application to the major military commander at the Ministry of National Defence and the Joint Chiefs of Staff was accepted for the direction of military supply development in mid-termed plan for the development of war supply. Especially, through the preliminary research and the development of foundation technology for the development of the Korean style space food and functional space food, space Kimch with very long shelf life was finally developed. The development of new item/products for food and life science by combining RT/BT, the development of technology for the elimination/reduction of

  19. Technology Developments in Radiation-Hardened Electronics for Space Environments

    Science.gov (United States)

    Keys, Andrew S.; Howell, Joe T.

    2008-01-01

    The Radiation Hardened Electronics for Space Environments (RHESE) project consists of a series of tasks designed to develop and mature a broad spectrum of radiation hardened and low temperature electronics technologies. Three approaches are being taken to address radiation hardening: improved material hardness, design techniques to improve radiation tolerance, and software methods to improve radiation tolerance. Within these approaches various technology products are being addressed including Field Programmable Gate Arrays (FPGA), Field Programmable Analog Arrays (FPAA), MEMS, Serial Processors, Reconfigurable Processors, and Parallel Processors. In addition to radiation hardening, low temperature extremes are addressed with a focus on material and design approaches. System level applications for the RHESE technology products are discussed.

  20. Novel Technology for Radiation Protection Project

    Data.gov (United States)

    National Aeronautics and Space Administration — Radiation exposure to living tissue generates free radicals through ionizing reaction such as photoelectric effect, Compton and Auger effects.  Radiation...

  1. Study on technology for minimizing radiation risk

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Jeong Ho; Kim, In Gyu; Kim, Jin Kyu; Lee, Kang Suk; Kim, Kug Chan; Chun, Ki Chung

    1997-01-01

    Apoptosis, also called programmed cell death to discriminate it from necrosis, is characterized by : chromatin condensation, apoptotic body formation, fragmentation of DNA into oligonucleosome sized pieces, swelling and progressive cell degradation. We examined morphological and biochemical changes of T-lymphocytes following gamma irradiation exposure. The results are followings. (1) Murine lymphocytes have several characteristics : The irradiated cells undergo morphological and biochemical changes characteristic of apoptosis, causing growth delay. (0.01, 0.1, 1.0 Gy) (2) The onset of DNA fragmentation in cells occurs after one more cell divisions. (3) DNA fragmentation in cells occurs in all irradiated group (0.1, 1.0, 2.0, 4.0 Gy, 24 hours following gamma radiation exposure) (4) Apoptotic bodies were detected by confocal microscope with ease when compared with electron microscope. For the developing technology for minimizing radiation damage, the following experimental works have been done. (1) Establishment of experimental system for pre-screening of radioprotectants - Screening of protective substances using TSH bioindicator - Efficacy test of some radioprotective materials (2) TSH bioindicator system can make a scientific role in screening unknown materials for their possible radioprotective effect. (author). 42 refs., 3 tabs., 9 figs.

  2. New technologies in radiation therapy: ensuring patient safety, radiation safety and regulatory issues in radiation oncology.

    Science.gov (United States)

    Amols, Howard I

    2008-11-01

    New technologies such as intensity modulated and image guided radiation therapy, computer controlled linear accelerators, record and verify systems, electronic charts, and digital imaging have revolutionized radiation therapy over the past 10-15 y. Quality assurance (QA) as historically practiced and as recommended in reports such as American Association of Physicists in Medicine Task Groups 40 and 53 needs to be updated to address the increasing complexity and computerization of radiotherapy equipment, and the increased quantity of data defining a treatment plan and treatment delivery. While new technology has reduced the probability of many types of medical events, seeing new types of errors caused by improper use of new technology, communication failures between computers, corrupted or erroneous computer data files, and "software bugs" are now being seen. The increased use of computed tomography, magnetic resonance, and positron emission tomography imaging has become routine for many types of radiotherapy treatment planning, and QA for imaging modalities is beyond the expertise of most radiotherapy physicists. Errors in radiotherapy rarely result solely from hardware failures. More commonly they are a combination of computer and human errors. The increased use of radiosurgery, hypofractionation, more complex intensity modulated treatment plans, image guided radiation therapy, and increasing financial pressures to treat more patients in less time will continue to fuel this reliance on high technology and complex computer software. Clinical practitioners and regulatory agencies are beginning to realize that QA for new technologies is a major challenge and poses dangers different in nature than what are historically familiar.

  3. Status of radiation detector and neutron monitor technology

    CERN Document Server

    Kim, Y K; Ha, J H; Han, S H; Hong, S B; Hwang, I K; Lee, W G; Moon, B S; Park, S H; Song, M H

    2002-01-01

    In this report, we describe the current states of the radiation detection technology, detectors for industrial application, and neutron monitors. We also survey the new technologies being applied to this field. The method to detect radiation is the measurement of the observable secondary effect from the interaction between incident radiation and detector material, such as ionization, excitation, fluorescence, and chemical reaction. The radiation detectors can be categorized into gas detectors, scintillation detectors, and semiconductor detectors according to major effects and main applications. This report contains the current status and operational principles of these detectors. The application fields of radiation detectors are industrial measurement system, in-core neutron monitor, medical radiation diagnostic device, nondestructive inspection device, environmental radiation monitoring, cosmic-ray measurement, security system, fundamental science experiment, and radiation measurement standardization. The st...

  4. Advanced Space Radiation Detector Technology Development

    Science.gov (United States)

    Wrbanek, John D.; Wrbanek, Susan Y.; Fralick, Gustave C.

    2013-01-01

    The advanced space radiation detector development team at the NASA Glenn Research Center (GRC) has the goal of developing unique, more compact radiation detectors that provide improved real-time data on space radiation. The team has performed studies of different detector designs using a variety of combinations of solid-state detectors, which allow higher sensitivity to radiation in a smaller package and operate at lower voltage than traditional detectors. Integration of multiple solid-state detectors will result in an improved detector system in comparison to existing state-of-the-art instruments for the detection and monitoring of the space radiation field for deep space and aerospace applications.

  5. Radiation treatment of materials - elaboration bases of radiation technology; Obrobka radiacyjna materialow - zasady opracowywania technologii

    Energy Technology Data Exchange (ETDEWEB)

    Panta, P.P. [Institute of Nuclear Chemistry and Technology, Warsaw (Poland)

    1997-10-01

    The basic rules in design of radiation technologies have been presented and discussed. The recommendations for achieving of assigned goal in respect of obliged regulations have been done and explained on the example of radiation technology of adhesive materials and glue production.

  6. Development of radiation protection and measurement technology

    Energy Technology Data Exchange (ETDEWEB)

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

    1997-07-01

    Reference X-, gamma, beta and neutron radiation fields complying with the ISO and ANSI standards have been established and evaluated to provide a basic technical support in national radiation protection dosimetry program and to provide calibration measurement devices. Personal dose evaluation algorithm has been developed with these reference radiation fields, which comply well with both domestic and the new ANSI N13.11, to evaluate accurate personal dose equivalents. A personal internal dosimetry algorithm which can estimate the intakes of radionuclides from the results of in vivo bioassay and the resulting internal doses has been developed and verified its performance. It was also evaluated to be equality excellent compared with those being used in foreign countries and used to make a computer code for internal dose evaluation which can be run with PC under the Windows environment. A BOMAB phantom for precise calibration of in vivo system has been also designed, fabricated and test-evaluated. Based on the ALARA concept of the optimization principle of radiation protection, a method for estimating the cost for radiation protection has been studied and an objective monetary cost of detriment due to radiation exposure, called {alpha} value ($/man-Sv) has been derived and proposed based on the Korean socio-economic situation and human risk factors to provide basic data for the radiation protection optimization study in Korea. (author). 100 refs., 104 tabs., 69 figs.

  7. The preliminary research for biosynthetic engineering by radiation fusion technology

    Energy Technology Data Exchange (ETDEWEB)

    Roh, Chang Hyun; Jung, U Hee; Park, Hae Ran [KAERI, Daejeon (Korea, Republic of)

    2012-01-15

    The purpose of this project is to elucidate the solution to the production of bioactive substance using biotransformation process from core technology of biosynthetic engineering by radiation fusion technology. And, this strategy will provide core technology for development of drugs as new concept and category. Research scopes and contents of project include 1) The development of mutant for biosynthetic engineering by radiation fusion technology 2) The development of host for biosynthetic engineering by radiation fusion technology 3) The preliminary study for biosynthetic engineering of isoflavone by radiation fusion technology. The results are as follows. Isoflavone compounds(daidzein, hydroxylated isoflavone) were analyzed by GC-MS. The study of radiation doses and p-NCA high-throughput screening for mutant development were elucidated. And, it was carried out the study of radiation doses for host development. Furthermore, the study of redox partner and construction of recombinant strain for region-specific hydroxylation(P450, redox partner). In addition, the biological effect of 6,7,4'-trihydroxyisoflavone as an anti-obesity agent was elucidated in this study.

  8. Status and prospect of radiation processing technology in Malaysia

    Energy Technology Data Exchange (ETDEWEB)

    Khairul Zaman Hj. Mohd Dahlan; Nahrul Khair Alang Md Rashid [Malaysian Institute for Nuclear Technology Research (MINT), Bangi, Selangor Darul Ehsan (Malaysia)

    2001-03-01

    Radiation processing technology in Malaysia is gaining acceptance by the local industry. The technology has proven to enhance the industrial efficiency, productivity and improve product quality and competitiveness. For many years, variety of radiation crosslinkable materials based on synthetic polymers have been produced either in the form of thermoplastic resins, polymer blends or composites. Today, effort is being focused towards producing environmentally friendly and biodegradable materials using natural polymers. The government of Malaysia through the Malaysian Institute for Nuclear Technology Research (MINT) has developed research program to utilize indigenous materials such as natural rubber, palm oil and polysaccharide. Radiation processing technology is used to process (crosslink/grafting/curing) the materials at a competitive cost. This technology can be applied in several industrial sectors such as automobile, aerospace, construction and healthcare. (author)

  9. Shape Morphing Adaptive Radiator Technology (SMART) Updates to Techport Entry

    Science.gov (United States)

    Erickson, Lisa; Bertagne, Christopher; Hartl, Darren; Witcomb, John; Cognata, Thomas

    2017-01-01

    The Shape-Morphing Adaptive Radiator Technology (SMART) project builds off the FY16 research effort that developed a flexible composite radiator panel and demonstrated its ability to actuate from SMA's attached to it. The proposed FY17 Shape-Morphing Adaptive Radiator Technology (SMART) project's goal is to 1) develop a practical radiator design with shape memory alloys (SMAs) bonded to the radiator's panel, and 2) build a multi-panel radiator prototype for subsequent system level thermal vacuum tests. The morphing radiator employs SMA materials to passively change its shape to adapt its rate of heat rejection to vehicle requirements. Conceptually, the radiator panel has a naturally closed position (like a cylinder) in a cold environment. Whenever the radiator's temperature gradually rises, SMA's affixed to the face sheet will pull the face sheet open a commensurate amount - increasing the radiators view to space and causing it to reject more heat. In a vehicle, the radiator's variable heat rejection capabilities would reduce the number of additional heat rejection devices in a vehicle's thermal control system. This technology aims to help achieve the required maximum to minimum heat rejection ratio required for manned space vehicles to adopt a lighter, simpler, single loop thermal control architecture (ATCS). Single loop architectures are viewed as an attractive means to reduce mass and complexity over traditional dual-loop solutions. However, fluids generally considered safe enough to flow within crewed cabins (e.g. propylene glycol-water mixtures) have much higher freezing points and viscosities than those used in the external sides of dual loop ATCSs (e.g. Ammonia and HFE7000).

  10. Standardising antisocial personality disorder: the social shaping of a psychiatric technology.

    Science.gov (United States)

    Pickersgill, Martyn

    2012-05-01

    The Diagnostic and Statistical Manual of Mental Disorders (DSM) is one of the most influential and controversial terminological standards ever produced. As such, it continues to provide a valuable case study for sociologists of health and illness. In this article I take as my focus one particular DSM category: antisocial personality disorder (ASPD). The analysis charts the shifting understandings of personality disorders associated with antisocial behaviour in the DSM and in US psychiatry more broadly from 1950 to the present day. Memos, letters and minutes produced by the DSM-III committee and held in the American Psychiatric Association (APA) archives ground the discussion. Finally, the article explores more recent constructions of antisocial personality disorder and examines the anticipatory discourse pertaining to the rewriting of this category expected in the forthcoming DSM-5. In presenting an in-depth socio-historical narrative of the development - and potential future - of standards for pathological antisociality, this analysis casts new light on the ASPD construct. In particular, by considering it as a technology, I elaborate how processes of path dependency constrain innovation and how imaginaries of users and publics are implicated in the APA debates constitutive of this. © 2011 The Authors. Sociology of Health & Illness © 2011 Foundation for the Sociology of Health & Illness/Blackwell Publishing Ltd.

  11. The development of advanced robotics technology in high radiation environment

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Yong Bum; Cho, Jaiwan; Lee, Nam Ho; Choi, Young Soo; Park, Soon Yong; Lee, Jong Min; Park, Jin Suk; Kim, Seung Ho; Kim, Byung Soo; Moon, Byung Soo

    1997-07-01

    In the tele-operation technology using tele-presence in high radiation environment, stereo vision target tracking by centroid method, vergence control of stereo camera by moving vector method, stereo observing system by correlation method, horizontal moving axis stereo camera, and 3 dimensional information acquisition by stereo image is developed. Also, gesture image acquisition by computer vision and construction of virtual environment for remote work in nuclear power plant. In the development of intelligent control and monitoring technology for tele-robot in hazardous environment, the characteristics and principle of robot operation. And, robot end-effector tracking algorithm by centroid method and neural network method are developed for the observation and survey in hazardous environment. 3-dimensional information acquisition algorithm by structured light is developed. In the development of radiation hardened sensor technology, radiation-hardened camera module is designed and tested. And radiation characteristics of electric components is robot system is evaluated. Also 2-dimensional radiation monitoring system is developed. These advanced critical robot technology and telepresence techniques developed in this project can be applied to nozzle-dam installation /removal robot system, can be used to realize unmanned remotelization of nozzle-dam installation / removal task in steam generator of nuclear power plant, which can be contributed for people involved in extremely hazardous high radioactivity area to eliminate their exposure to radiation, enhance their task safety, and raise their working efficiency. (author). 75 refs., 21 tabs., 15 figs.

  12. Development of public health assurance technology by radiation

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Dong Ho; Lim, Sang Yong; Yang, Jae Seung (and others)

    2007-07-15

    This project was performed to develop the radiation sterilization process of public health products and RT/BT fusion technology and to secure a detection and quarantine system of irradiated food. To establish the radiation sterilization of public health goods, current status of radiation sterilization of disposable medical equipment was investigated and the manufacturing process of disposable media for microbial cultivation were developed using a gamma sterilization. In addition, microbial contamination of disposable kitchen utensils was surveyed and pathogen-free organic compost was developed by radiation sterilization. The radiation responses of bacteria including Salmonella, Vibrio, E. coli, and D. radiodurans were analyzed by DNA chip and 2-D electrophoresis. To validate the safety of surviving bacteria after irradiation, the expressions of virulence genes of pathogenic bacteria were monitored using real-time PCR, and the growth of mycotoxin-producing funguses was studied after irradiation. And also, quantitative detection methods of irradiated and inactivated Salmonella using a real-time PCR and a immuno assay. To establish the quarantine and quality assurance of irradiated food and public health products, radiation technology was applied to the fermented foods, minimally processed food and dried vegetables. Radiation effects on insects was examined and the corresponding data base was constructed. We also collaborated on the preliminary test of international trade of sea food with USA or India. To establish the official detection method of irradiated food, physical, chemical and biological detection methods for irradiated food were verified. Finally, multiple range test of irradiated food was performed.

  13. Development of modulators against degenerative aging using radiation fusion technology

    Energy Technology Data Exchange (ETDEWEB)

    Jo, S. K.; Park, H. R.; Jang, B. S.; Roh, C. H.; Eom, H. S.; Choi, N. H.; Seol, M. A.; Kim, S. H.; Choi, H. M.; Park, M. K.; Shin, H. J.; Ryu, D. K.; Oh, W. J.; Kim, S. H; Yee, S. T.

    2012-04-15

    1. Objectives Establishment of modelling of degenerative aging using radiation technology Development of aging modulators using radiation degenerative aging model 2. Project results Establishment of the modeling of degenerative aging using radiation technology - The systematic study on the comparison of radiation-induced degeneration and natural aging process in animals and cells confirmed the biological similarity between these two degeneration models - The effective biomarkers were selected for the modelling of degenerative aging using radiation (10 biomarkers for immune/hematopoiesis, 1 for oxidative stress, 6 for molecular signaling, 3 for lipid metabolism) - The optimal irradiation condition was established for the modelling of degerative aging (total 5Gy with fractionation by over 10 times, lapse of over 4 months) - The molecular mechanisms of radiation-induced degeneration were studied including chronic inflammation (lung), inflammation-related lipid metabolism disturbance, mitochondria biogenesis and dynamics - The radiation degenerative model was evaluated with previously known natural substances (resveratrol, EGCG, etc) Development of aging modulators using radiation degenerative aging model - After the screening of about 800 natural herb extracts, 5 effective substances were selected for aging modulation. - 3 candidate compositions were selected from 20 compositions made from effective substances by in vitro evaluation (WAH2, WAH6, WAH7) - 1 composition (WAH6) was selected as the best aging modulator by in vivo evaluation in radiation-induced aging models and degenerative disease models. 3. Expected benefits and plan of application The modelling of degenerative aging using radiation can facilitate the aging research by providing the useful cell/animal models for aging research A large economic benefits are expected by the commercialization of developed aging modulators (over 10 billion KW in 2015.

  14. Radiation Fusion Technology for Sewage Sterilization

    Energy Technology Data Exchange (ETDEWEB)

    Lee, M. J.; Kim, T. H.; Ryu, S. H.; Jung, I. H.; Lee, O. M.; Kim, T. H. [Korea Atomic Energy Research Institute, Jeongeup (Korea, Republic of)

    2011-05-15

    Environmental regulation for effluent of sewage and wastewater treatment plant is going to be reinforced in terms of ecology toxicity and number of E.coli from 2011. Besides, it has been known that UV technology is not enough to be a sterilization tool due to regrowth of E.coli even after treatment with UV. Therefore it needs a novel technology for both restriction of E.coli regrowth and treatment of toxic materials in order to meet the environmental regulation being enforced. Electron beam has unique capabilities on destruction of chemicals and sterilization of microbial. In this study, field study on destruction of antibiotics and endocrine disruptors, reduction ecological toxicity and E.Coli regrowth was carried out using by mobile electron beam accelerator. Experimental results showed that irradiation on effluent could effectively reduce not only ecology toxicity but regrowth of E.coli by destruction of chemicals and complete sterilization

  15. Radiation Tolerant Design with 0.18-micron CMOS Technology

    CERN Document Server

    Chen, Li; Durdle , Nelson G.

    This thesis discusse s th e issues r elated to the us e of enclosed-gate layou t trans isto rs and guard rings in a 0.18 μ m CMOS technology in order to im prove the radiation tolerance of ASICs. The thin gate oxides of subm icron technologies ar e inherently m ore radiation tole rant tha n the thick er oxides present in less advanced technologies. Using a commercial deep subm icron technology to bu ild up radiation-ha rdened circuits introduces several advantages com pared to a dedicated radiation-ha rd technology, such as speed, power, area, stability, and expense. Som e novel aspects related to the use of encl osed-gate layout transist ors are presented in this th esis. A m odel to calculate the aspect ratio is introduced and verified. Some im portant electrica l par ameters of the tran sistors such as threshold voltage, leakage current, subthreshold slope, and transconducta nce are studied before and afte...

  16. Use of newer technologies with existing service for family reintegration of unknown psychiatric patients: A case series.

    Science.gov (United States)

    Gowda, Guru S; Telang, Ashay; Sharath, Chandra Reddy; Issac, Thomas Gregor; Haripriya, Chintala; Ramu, Praveen Shivalli; Math, Suresh Bada

    2017-10-29

    Homeless Mentally Ill (HMI) patients pose a challenge in treatment, management and rehabilitation services. HMI patients are often difficult to engage in treatment, and associated with relapse and rehospitalization, even after recovery. Family plays an important role in treatment engagement and care of the mentally ill person in India. Here, we report two unknown psychiatric patients who were reintegrated to their families using newer technologies with existing service. Newer technologies have helped in early identification of HMI families and reintegration into them. The early reintegration reduced the unnecessary detention of HMI patients inside the hospital after recovery. Copyright © 2017 Elsevier B.V. All rights reserved.

  17. The application of computer assisted technologies (CAT) in the rehabilitation of cognitive functions in psychiatric disorders of childhood and adolescence.

    Science.gov (United States)

    Srebnicki, Tomasz; Bryńska, Anita

    2016-01-01

    First applications of computer-assisted technologies (CAT) in the rehabilitation of cognitive deficits, including child and adolescent psychiatric disorders date back to the 80's last century. Recent developments in computer technologies, wide access to the Internet and vast expansion of electronic devices resulted in dynamic increase in therapeutic software as well as supporting devices. The aim of computer assisted technologies is the improvement in the comfort and quality of life as well as the rehabilitation of impaired functions. The goal of the article is the presentation of most common computer-assisted technologies used in the therapy of children and adolescents with cognitive deficits as well as the literature review of their effectiveness including the challenges and limitations in regard to the implementation of such interventions.

  18. Technological progress in radiation therapy for brain tumors

    LENUS (Irish Health Repository)

    Vernimmen, Frederik Jozef

    2014-01-01

    To achieve a good therapeutic ratio the radiation dose to the tumor should be as high as possible with the lowest possible dose to the surrounding normal tissue. This is especially the case for brain tumors. Technological ad- vancements in diagnostic imaging, dose calculations, and radiation delivery systems, combined with a better un- derstanding of the pathophysiology of brain tumors have led to improvements in the therapeutic results. The widely used technology of delivering 3-D conformal therapy with photon beams (gamma rays) produced by Li-near Accelerators has progressed into the use of Intensity modulated radiation therapy (IMRT). Particle beams have been used for several decades for radiotherapy because of their favorable depth dose characteristics. The introduction of clinically dedicated proton beam therapy facilities has improved the access for cancer patients to this treatment. Proton therapy is of particular interest for pediatric malignancies. These technical improvements are further enhanced by the evolution in tumor physiology imaging which allows for improved delineation of the tumor. This in turn opens the potential to adjust the radiation dose to maximize the radiobiological effects. The advances in both imaging and radiation therapy delivery will be discussed.

  19. Radiation processing applications in the Czechoslovak water treatment technologies

    Science.gov (United States)

    Vacek, K.; Pastuszek, F.; Sedláček, M.

    The regeneration of biologically clogged water wells by radiation proved to be a successful and economically beneficial process among other promising applications of ionizing radiation in the water supply technology. The application conditions and experience are mentioned. The potential pathogenic Mycobacteria occuring in the warm washing and bathing water are resistant against usual chlorine and ozone concentrations. The radiation sensitivity of Mycobacteria allowed to suggest a device for their destroying by radiation. Some toxic substances in the underground water can be efficiently degraded by gamma radiation directly in the wells drilled as a hydraulic barrier surrounding the contaminated land area. Substantial decrease of CN - concentration and C.O.D. value was observed in water pumped from such well equipped with cobalt sources and charcoal. The removing of pathogenic contamination remains to be the main goal of radiation processing in the water purification technologies. The decrease of liquid sludge specific filter resistance and sedimentation acceleration by irradiation have a minor technological importance. The hygienization of sludge cake from the mechanical belt filter press by electron beam appears to be the optimum application in the Czechoslovak conditions. The potatoes and barley crop yields from experimental plots treated with sludge were higher in comparison with using the manure. Biological sludge from the municipal and food industry water purification plants contains nutritive components. The proper hygienization is a necessary condition for using them as a livestock feed supplement. Feeding experiments with broilers and pigs confirmed the possibility of partial (e.g. 50%) replacement of soya-, bone- or fish flour in feed mixtures by dried sludge hygienized either by heat or by the irradiation.

  20. Methods of computer experiment in gamma-radiation technologies using new radiation sources

    CERN Document Server

    Bratchenko, M I; Rozhkov, V V

    2001-01-01

    Presented id the methodology of computer modeling application for physical substantiation of new irradiation technologies and irradiators design work flow. Modeling tasks for irradiation technologies are structured along with computerized methods of their solution and appropriate types of software. Comparative analysis of available packages for Monte-Carlo modeling of electromagnetic processes in media is done concerning their application to irradiation technologies problems. The results of codes approbation and preliminary data on gamma-radiation absorbed dose distributions for nuclides of conventional sources and prospective Europium-based gamma-sources are presented.

  1. Development of Drugs and Technology for Radiation Theragnosis

    Directory of Open Access Journals (Sweden)

    Hwan-Jeong Jeong

    2016-06-01

    Full Text Available Personalized medicine is tailored medical treatment that targets the individual characteristics of each patient. Theragnosis, combining diagnosis and therapy, plays an important role in selecting appropriate patients. Noninvasive in vivo imaging can trace small molecules, antibodies, peptides, nanoparticles, and cells in the body. Recently, imaging methods have been able to reveal molecular events in cells and tissues. Molecular imaging is useful not only for clinical studies but also for developing new drugs and new treatment modalities. Preclinical and early clinical molecular imaging shows biodistribution, pharmacokinetics, mechanisms of action, and efficacy. When therapeutic materials are labeled using radioisotopes, nuclear imaging with positron emission tomography or gamma camera can be used to treat diseases and monitor therapy simultaneously. Such nuclear medicine technology is defined as radiation theragnosis. We review the current development of drugs and technology for radiation theragnosis using peptides, albumin, nanoparticles, and cells.

  2. Technology assessment: Optical communications, signal processors, and radiation effects

    Science.gov (United States)

    Ricardi, L. J.; Boroson, D. M.; Chan, V. W. S.; Hutchinson, B. H.; Walther, F. G.; Woods, J. P.; Zolnay, S. L.

    1982-01-01

    Military satellite communication system architects are often constrained by the performance capability of technology limited devices. Consequently, it is important to continually assess that technology essential to the support of future MILSATCOM systems. This project report and those published previously summarize study efforts that developed strawman MILSATCOM systems which satisfy projected user requirements. The technology requisite to deployment of these SATCOM systems was carefully evaluated, and required improvements were described and/or defined. Previously, the study was limited to rf devices or related phenomena. This report considers optical communications systems, on-board signal demodulators, and radiation effects. An update on the traveling-wave tube technology is presented because of its extreme importance to the development of affordable MILSATCOM terminals.

  3. Development of application technology of radiation-resistant microorganism

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Dong Ho; Lim, Sang Yong; Joe, Min Ho; Jung, Jin Woo; Jung, Sun Wook; Song, Du Sup; Choi, Young Ji [Korea Atomic Energy Research Institute, Daejeon (Korea, Republic of)

    2009-02-15

    The scope of the project is divided into of three parts; (i) to define the survival strategy of radiation-resistant microbes, especially Deinococcus (ii) acquisition of gene resources encoding the novel protein and related with the production of functional materials (iii) development of control technology against radiation-resistant microbes. To this aim, first, the whole transcriptional response of the D. radiodurans strain haboring pprI mutation, which plays an important role in radiation resistance, was analyzed by cDNA microarray. The anti-oxidant activity of the major carotenoid of D. radiodurans, deinoxanthin, was analyzed and the strain was constructed, in which the gene necessary for bio- synthesis of deinoxanthin is deleted. The response to cadmium of D. radiodurans was also investigated through cDNA microarray analysis. Radiogenic therapy, one of the cancer treatments, is designed to use radiation-inducible gene for the treatment. To develop the gene-transfer vehicle for radiogenic therapy, we have investigated the virulence mechanism of Salmonella, which is tumor-targeting bacteria and studied the synergistic effect of some anti-cancer agents on radiation treatment for cancer. Finally, we confirmed that irradiation could decompose a fungus toxin, patulin, into various harmless by-products.

  4. Developing an Integrated Design Model Incorporating Technology Philosophy for the Design of Healthcare Environments: A Case Analysis of Facilities for Psychogeriatric and Psychiatric Care in The Netherlands

    NARCIS (Netherlands)

    J. van Hoof; M.J. Verkerk

    2013-01-01

    van Hoof, J., Verkerk, M.J. (2013) Developing an Integrated Design Model Incorporating Technology Philosophy for the Design of Healthcare Environments: A Case Analysis of Facilities for Psychogeriatric and Psychiatric Care in The Netherlands. Technology in Society 35(1):1-13

  5. [Technological innovations in radiation oncology require specific quality controls].

    Science.gov (United States)

    Lenaerts, E; Mathot, M

    2014-01-01

    During the last decade, the field of radiotherapy has benefited from major technological innovations and continuously improving treatment efficacy, comfort and safety of patients. This mainly concerns the imaging techniques that allow 4D CT scan recording the respiratory phases, on-board imaging on linear accelerators that ensure perfect positioning of the patient for treatment and irradiation techniques that reduce very significantly the duration of treatment sessions without compromising quality of the treatment plan, including IMRT (Intensity Modulated Radiation Therapy) and VMAT (Volumetric Modulated Arc therapy). In this context of rapid technological change, it is the responsibility of medical physicists to regularly and precisely monitor the perfect functioning of new techniques to ensure patient safety. This requires the use of specific quality control equipment best suited to these new techniques. We will briefly describe the measurement system Delta4 used to control individualized treatment plan for each patient treated with VMAT technology.

  6. Space Photovoltaic Research and Technology 1983. High Efficiency, Radiation Damage, and Blanket Technology

    Science.gov (United States)

    1984-01-01

    This three day conference, sixth in a series that began in 1974, was held at the NASA Lewis Research Center on October 18-20, 1983. The conference provided a forum for the discussion of space photovoltaic systems, their research status, and program goals. Papers were presented and workshops were held in a variety of technology areas, including basic cell research, advanced blanket technology, and radiation damage.

  7. Technological advances for deciphering the complexity of psychiatric disorders: merging proteomics with cell biology.

    Science.gov (United States)

    Wesseling, Hendrik; Guest, Paul C; Lago, Santiago G; Bahn, Sabine

    2014-08-01

    Proteomic studies have increased our understanding of the molecular pathways affected in psychiatric disorders. Mass spectrometry and two-dimensional gel electrophoresis analyses of post-mortem brain samples from psychiatric patients have revealed effects on synaptic, cytoskeletal, antioxidant and mitochondrial protein networks. Multiplex immunoassay profiling studies have found alterations in hormones, growth factors, transport and inflammation-related proteins in serum and plasma from living first-onset patients. Despite these advances, there are still difficulties in translating these findings into platforms for improved treatment of patients and for discovery of new drugs with better efficacy and side effect profiles. This review describes how the next phase of proteomic investigations in psychiatry should include stringent replication studies for validation of biomarker candidates and functional follow-up studies which can be used to test the impact on physiological function. All biomarker candidates should now be tested in series with traditional and emerging cell biological approaches. This should include investigations of the effects of post-translational modifications, protein dynamics and network analyses using targeted proteomic approaches. Most importantly, there is still an urgent need for development of disease-relevant cellular models for improved translation of proteomic findings into a means of developing novel drug treatments for patients with these life-altering disorders.

  8. Enhancement of efficiency of storage and processing of food raw materials using radiation technologies

    Science.gov (United States)

    Gracheva, A. Yu.; Zav'yalov, M. A.; Ilyukhina, N. V.; Kukhto, V. A.; Tarasyuk, V. T.; Filippovich, V. P.; Egorkin, A. V.; Chasovskikh, A. V.; Pavlov, Yu. S.; Prokopenko, A. V.; Strokova, N. E.; Artem'ev, S. A.; Polyakova, S. P.

    2016-12-01

    The work is dedicated to improvement of efficiency of storage and processing of food raw materials using radiation technologies. International practice of radiation processing of food raw materials is presented and an increase in the consumption of irradiated food products is shown. The prospects of using radiation technologies for the processing of food products in Russia are discussed. The results of studies of radiation effects on various food products and packaging film by γ radiation and accelerated electrons are presented.

  9. Enhancement of efficiency of storage and processing of food raw materials using radiation technologies

    Energy Technology Data Exchange (ETDEWEB)

    Gracheva, A. Yu.; Zav’yalov, M. A.; Ilyukhina, N. V.; Kukhto, V. A.; Tarasyuk, V. T.; Filippovich, V. P. [All-Russia Research Institute of Preservation Technology (Russian Federation); Egorkin, A. V.; Chasovskikh, A. V. [Research Institute of Technical Physics and Automation (Russian Federation); Pavlov, Yu. S., E-mail: rad05@bk.ru [Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences (Russian Federation); Prokopenko, A. V., E-mail: pav14@mail.ru [National Research Nuclear University (Moscow Engineering Physics Institute) (Russian Federation); Strokova, N. E. [Moscow State University (Russian Federation); Artem’ev, S. A. [Russian Research Institute of Baking Industry (Russian Federation); Polyakova, S. P. [Russian Research Institute of Confectionery Industry (Russian Federation)

    2016-12-15

    The work is dedicated to improvement of efficiency of storage and processing of food raw materials using radiation technologies. International practice of radiation processing of food raw materials is presented and an increase in the consumption of irradiated food products is shown. The prospects of using radiation technologies for the processing of food products in Russia are discussed. The results of studies of radiation effects on various food products and packaging film by γ radiation and accelerated electrons are presented.

  10. Development of radiation fusion technology with food technology by the application of high dose irradiation

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Juwoon; Kim, Jaehun; Choi, Jongil; and others

    2012-04-15

    This study was performed to achieve stable food supply and food safety with radiation fusion technology as a preparation for food weaponization. Results at current stage are following: First, for the development of radiation and food engineering fusion technology using high dose irradiation, the effects of high dose irradiation on food components were evaluated. The combination treatment of irradiation with food engineering was developed. Irradiation condition to destroy radiation resistant foodborne bacteria were determined. Second, for the development of E-beam irradiation technology, the effects of radiation sources on food compounds, processing conditions, and food quality of final products were compared. Food processing conditions for agricultural/aquatic products with different radiation sources was developed and the domination of E-beam irradiation foods were determined. The physical marker for E-beam irradiated foods or not was developed. Third, for the fundamental researches to develop purposed foods to extreme environmental, ready-to-eat foods were developed using high dose irradiation. Food processing for export strategy foods such as process ginseng were developed. Food processing with irradiation to destroy mycotoxin and to inhibit production of mycotoxin was developed. Mathematical models to predict necessary irradiation doses and radiation sources were developed and validated. Through the fundamental researches, the legislation for irradiation approval on meat products, sea foods and dried sea foods, and use of E-beam was introduced. Results from this research project, the followings are expected. Improvement of customer acceptance and activation of irradiation technology by the use of various irradiation rays. Increase of indirect food productivity, and decrease of SOC and improvement of public health by prevention of foodborne outbreaks. Build of SPS/TBT system against imported products and acceleration of domestic product export. Systemized

  11. Development of Radiation Fusion Technology with Food Technology by the Application of High Dose Irradiation

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Ju Won; Kim, Jae Hun; Choi, Jong Il

    2010-04-15

    This study was studied to achieve stable food supply and food safety with radiation fusion technology as a preparation for food weaponization. Results at current stage are following: First, for the development of radiation and food engineering fusion technology using high dose irradiation, the effects of high dose irradiation on food components were evaluated. The combination treatment of irradiation with food engineering were developed. Irradiation condition to destroy radiation resistant food borne bacteria were determined. Second, for the development of E-beam irradiation technology, the effects of radiation sources on food compounds, processing conditions, and food quality of final products were compared. Food processing conditions for agricultural/aquatic products with different radiation sources were developed and the domination of E-beam irradiation foods were determined. The physical marker for E-beam irradiated foods or not were developed. Third, for the fundamental researches to develop purposed foods to extreme environmental, ready-to-eat foods were developed using high dose irradiation. Food processing for export strategy foods such as process ginseng were developed. Food processing with irradiation to destroy mycotoxin and to inhibit production of mycotoxin were developed. Mathematical models to predict necessary irradiation doses and radiation sources were developed and validated. Through the fundamental researches, the legislation for irradiation approval on meat products, sea foods and dried sea foods, and use of E-beam were introduced. Results from this research project, the followings are expected. (1) Improvement of customer acceptance and activation of irradiation technology by the use of various irradiation rays. (2) Increase of indirect food productivity, and decrease of SOC and improvement of public health by prevention of food borne outbreaks. (3) Build of SPS/TBT system against imported products and acceleration of domestic product export

  12. Development and application of isotopes and radiation technology in Indonesia

    Energy Technology Data Exchange (ETDEWEB)

    Djaloeis, A. [DDG, Batan, Jakarta (Indonesia)

    1997-10-01

    The National Atomic Energy Agency (BATAN) of the Republic of Indonesia is the highest agency in the country, charged amongst others with the development and application of Isotopes and Radiation Technology as a tool in the search for the optimal solution of various national development problems, such as those encountered in the fields of Agriculture, Livestock, health/medicine, Industry, Environment and Energy. The acquisition and development of the scientific and technical expertise, R and D facilities/instruments and infrastructure have been achieved primarily through bilateral and multilateral collaborative activities with domestic, foreign and international institutions. On the basis of the achieved R and D results, the acquired techniques have been progressively transferred to the end-users and applied in solving scientific-technical problems in the aforementioned fields. This paper gives a brief overview of the present status and future trend of activities in the development and applications of isotopes and radiation technology in Agriculture, Livestock and Industry in Indonesia. In the field of Agriculture the research activities are focussed on obtaining and disseminating new crop varieties with desired specific characteristics and on increasing soil fertilizer efficiency. These research results and those on livestock feed supplementation formula and disease prevention have been applied in helping farmers in various parts of Indonesia to increase their productivity. In industry, irradiation technology for food preservation and sterilization has been successfully transferred to the commercial companies. The same is also true for Non-Destructive Examination, Radioactive Tracer and Radiation Based Process Monitoring Techniques. Natural and radioactive isotopes have been widely used also in hydrology, sedimentology and geothermal studies. Highlights of the results are presented and discussed

  13. Impact of Scaled Technology on Radiation Testing and Hardening

    Science.gov (United States)

    LaBel, Kenneth A.; Cohn, Lewis M.

    2005-01-01

    This presentation gives a brief overview of some of the radiation challenges facing emerging scaled digital technologies with implications on using consumer grade electronics and next generation hardening schemes. Commercial semiconductor manufacturers are recognizing some of these issues as issues for terrestrial performance. Looking at means of dealing with soft errors. The thinned oxide has indicated improved TID tolerance of commercial products hardened by "serendipity" which does not guarantee hardness or say if the trend will continue. This presentation also focuses one reliability implications of thinned oxides.

  14. Non-food radiation technology applications of food commodities

    Energy Technology Data Exchange (ETDEWEB)

    Mastro, N.L. Del [Center of Radiation Technology, Energy and Nuclear Research Institute (IPEN-CNEN/SP), Travessa R, 400 Cidade Universitaria, 05508-900 Sao Paulo (Brazil)]. E-mail: nlmastro@ipen.br

    2004-07-01

    At present food irradiation is considered an effective, broad-spectrum, residue-free, mature technology. Expertise in irradiation processing exists in a network of centers around the world, some of them in developing countries like Brazil and Argentina South American region. The use of renewable resources coming from crops products is becoming attractive also for non-food applications. In this sense, a complete new approach of higher aggregated value of some commodities like soy and maize, for example, is as renewable resources to create functional polymers, mainly for innovative biodegradable packaging solutions. There is a need of innovative approaches to produce edible/biodegradable materials from natural polymeric macromolecules with adequate properties. Incipient researches pointed to the successful use of irradiation processing to obtain or modify different types of biodegradable/edible plastic materials. This new radiation technology application is particularly important for countries that are leading producers of soybean and other commodities. (Author)

  15. Gamma radiation influence on technological characteristics of wheat flour

    Science.gov (United States)

    Teixeira, Christian A. H. M.; Inamura, Patricia Y.; Uehara, Vanessa B.; Mastro, Nelida L. d.

    2012-08-01

    This study aimed at determining the influence of gamma radiation on technological characteristics of wheat (Triticum sativum) flour and physical properties of pan breads made with this flour. The bread formulation included wheat flour, water, milk, salt, sugar, yeast and butter. The α-amylase activity of wheat flour irradiated with 1, 3 and 9 kGy in a Gammacell 220 (AECL), one day, five days and one month after irradiation was evaluated. Deformation force, height and weight of breads prepared with the irradiated flour were also determined. The enzymatic activity increased—reduction of falling number time—as radiation dose increased, their values being 397 s (0 kGy), 388 s (1 kGy), 343 s (3 kGy) and 293 s (9 kGy) respectively, remaining almost constant over the period of one month. Pan breads prepared with irradiated wheat flour showed increased weight. Texture analysis showed that bread made of irradiated flour presented an increase in maximum deformation force. The results indicate that wheat flour ionizing radiation processing may confer increased enzymatic activity on bread making and depending on the irradiation dose, an increase in weight, height and deformation force parameters of pan breads made of it.

  16. Emulsion technologies for multicellular tumour spheroid radiation assays.

    Science.gov (United States)

    McMillan, Kay S; McCluskey, Anthony G; Sorensen, Annette; Boyd, Marie; Zagnoni, Michele

    2016-01-07

    A major limitation with current in vitro technologies for testing anti-cancer therapies at the pre-clinical level is the use of 2D cell culture models which provide a poor reflection of the tumour physiology in vivo. Three dimensional cell culture models, such as the multicellular spheroid, provide instead a more accurate representation. However, existing spheroid-based assessment methods are generally labour-intensive and low-throughput. Emulsion based technologies offer enhanced mechanical stability during multicellular tumour spheroid formation and culture and are scalable to enable higher-throughput assays. The aim of this study was to investigate the characteristics of emulsion-based techniques for the formation and long term culture of multicellular UVW glioma cancer spheroids and apply these findings to assess the cytotoxic effect of radiation on spheroids. Our results showed that spheroids formed within emulsions had similar morphological and growth characteristics to those formed using traditional methods. Furthermore, we have identified the effects produced on the proliferative state of the spheroids due to the compartmentalised nature of the emulsions and applied this for mimicking tumour growth and tumour quiescence. Finally, proof of concept results are shown to demonstrate the scalability potential of the technology for developing high-throughput screening assays.

  17. The development and current status of the technology of isotope and radiation in China

    Energy Technology Data Exchange (ETDEWEB)

    Luo Zhifu [Dept. of Isotope, China Inst. of Atomic Energy, Beijing, BJ (China)

    1998-10-01

    The research and application of the technology of isotopes and radiation have been reviewed. Since the setup of the China`s first nuclear reactor at China Institute of Nuclear Energy in 1958, the technology of isotopes and radiation has been developed significantly. A research and application system has formed a considerable state. The technology of isotopes and radiation has been taken into the fields of industry, agriculture, medicine, and scientific research. The main achievements are on radiopharmaceuticals, radiation source, radiation process, and radioactive tracers. (author)

  18. New paradigms and future challenges in Radiation Oncology: An Update of Biological Targets and Technology*

    Science.gov (United States)

    Liauw, Stanley L.; Connell, Philip P.; Weichselbaum, Ralph R.

    2013-01-01

    The primary objective of radiation oncology is to exploit the biological interaction of radiation within tissue to promote tumor death while minimizing damage to surrounding normal tissue. The clinical delivery of radiation relies on principles of radiation physics that define how radiation energy is deposited in the body, as well as technology that facilitates accurate tumor targeting. This review will summarize the current landscape of recent biological and technological advances in radiation oncology, describe the challenges that exist, and offer potential avenues for improvement. PMID:23427246

  19. Development of Acne therapeutic hydrogel patches by radiation technology

    Energy Technology Data Exchange (ETDEWEB)

    Lim, Younmook; Nho, Youngchang; Gwon, Huijeong; Park, Jongseok; Kim, Jinkyu; Kim, Yongsoo

    2012-04-15

    In this project, hydrogel patches containing herbal extracts mixture were developed by radiation technology for acne treatment. Propionibacterium acnes (P. acnes), one of the anaerobic bacterium, is the cause of inflammatory acne. To find novel mediation for inflammation of P. acnes, we confirmed the anti-bacterial and anti-inflammatory activities of several herbal extracts against P. acnes. The water extracts from five dried herbs, Phellodendron amurense Rupr., Paeonia lactiflora Pallas., Houttuynia cordata Thumb., Agrimonia pilosa Ledeb. and Glycyrrhiza uralensis Fisch., were mixed into biocompatible polymers and irradiated by using gamma-ray to prepare hydrogels. The hydrogels containing herbal extracts mixture initiated to decrease the growth of P. acnes and reduced the production of pro-inflammatory cytokines, TNF-{alpha}, IL-8, IL-1{beta} and IL-6, in experiment with human monocytic THP-1 cells treated with heat-killed P. acnes at 1 mg/ml of mixture concentration.

  20. Pretreatment of sewage sludge by using the radiation technology

    Energy Technology Data Exchange (ETDEWEB)

    Lee, J. G.; Yu, D. H.; Lee, B. J.; Lee, M. J. [KAERI, Taejon (Korea, Republic of)

    2004-07-01

    A study on enhancement of sludge dewaterability and disinfection of the microorganisms in sewage sludge by using radiation technology was accomplished. Moisture content in sludge was reduced by using irradiation and adding the starfish as a dewatering aid. Moisture content was reduced by 20%(w/w) after irradiation and adding the dewatering aid while decreased by {approx}7%(w/w) after only irradiation. The amount of coagulant to form sludge flocs was dramatically increased in accordance with the irradiation dose because of the degradation of sludge particles but it was reduced when adding the dewatering aid. The colony forming unit of bacteria and E.coli were reduced over 99% after irradiation at the dose of >1kGy and SCOD, S-protein and S-carbohydrate were largely increased after irradiation.

  1. Development of sterilized porridge for patients by combined treatment of food technology with radiation technology

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Jaehun; Choi, Jongil; Song, Beomseok; and others

    2010-09-15

    This research was conducted to develop patient foods of high quality using a radiation fusion technology with food processing. Radiation technique to increase calorie of porridge was established, and it was investigated that radiation effects on functional materials, which can could be added to increase functionality of patient foods. Moreover, sterilized semi-fluid meal (milk porridge) for patients with higher calorie was developed by a sterilization process by gamma irradiation, combined treatments to improve the sensory qualities, and fortification with various nutrients. Also, sensory survey on irradiated commercial patient foods was performed to find the problems and improvement points of the developed products. Optimal packaging material was selected by evaluation of effect of irradiation in packaging materials and a convenient package for consuming by patients was decided. Safety of the irradiated milk porridge was confirmed by in-vivo genotoxicological test, and its nutritional composition for patients was evaluated by nutritional analysis. Finally, the milk porridge was developed as liquid, dried, powdered, and pellet type products. This research may contribute to improve life quality of patients by supplement of various foods with high quality to immuno-compromised patients. Furthermore, economic profits and technological advances are expected by commercialization of the patient foods.

  2. Advanced Electronics Technologies: Challenges for Radiation Effects Testing, Modeling, and Mitigation

    Science.gov (United States)

    LaBel, Kenneth A.; Cohn, Lewis M.

    2005-01-01

    Emerging Electronics Technologies include: 1) Changes in the commercial semiconductor world; 2) Radiation Effects Sources (A sample test constraint); and 3) Challenges to Radiation Testing and Modeling: a) IC Attributes-Radiation Effects Implication b) Fault Isolation c) Scaled Geometry d) Speed e) Modeling Shortfall f) Knowledge Status

  3. Repetitive nanosecond electron accelerators type URT-1 for radiation technology

    Science.gov (United States)

    Sokovnin, S. Yu.; Balezin, M. E.

    2018-03-01

    The electron accelerator URT-1М-300 for mobile installation was created for radiation disinfecting to correct drawbacks that were found the URT-1M electron accelerator operation (the accelerating voltage up to 1 МV, repetition rate up to 300 pps, electron beam size 400 × 100 mm, the pulse width about 100 ns). Accelerator configuration was changed that allowed to reduce significantly by 20% tank volume with oil where is placed the system of formation high-voltage pulses, thus the average power of the accelerator is increased by 6 times at the expense of increase in pulses repetition rate. Was created the system of the computerized monitoring parameters (output parameters and thermal mode) and remote control of the accelerator (charge voltage, pulse repetition rate), its elements and auxiliary systems (heat of the thyratron, vacuum system), the remote control panel is connected to the installation by the fiber-optical channel, what lightens the work for service personnel. For generating an electron beam up to 400 mm wide there are used metal- ceramic] and metal-dielectric cold cathodes of several emission elements (plates) with a non-uniform distribution of the electron beam current density on the output foil ± 15%. It was found that emission drop of both type of cathodes, during the operation at the high repetition rate (100 pps) is substantial at the beginning of the process, and then proceeds rather slowly that allows for continuous operation up to 40 h. Experiments showed that linear dependence of the voltage and a signal from the pin-diode remains within the range of the charge voltage 45-65 kV. Thus, voltage increases from 690 to 950 kV, and the signal from the pin-diode - from (2,8-4,6)*104 Gy/s. It allows to select electron energy quite precisely with consideration of the radiation technology requirements.

  4. The Use of Telemedicine and Mobile Technology to Promote Population Health and Population Management for Psychiatric Disorders.

    Science.gov (United States)

    Turvey, Carolyn; Fortney, John

    2017-10-16

    This article discusses recent applications in telemedicine to promote the goals of population health and population management for people suffering psychiatric disorders. The use of telemedicine to promote collaborative care, self-monitoring and chronic disease management, and population screening has demonstrated broad applicability and effectiveness. Collaborative care using videoconferencing to facilitate mental health specialty consults has demonstrated effectiveness in the treatment of depression, PTSD, and also ADHD in pediatric populations. Mobile health is currently being harnessed to monitor patient symptom trajectories with the goal of using machine learning algorithms to predict illness relapse. Patient portals serve as a bridge between patients and providers. They provide an electronically secure shared space for providers and patients to collaborate and optimize care. To date, research has supported the effectiveness of telemedicine in promoting population health. Future endeavors should focus on developing the most effective clinical protocols for using these technologies to ensure long-term use and maximum effectiveness in reducing population burden of mental health.

  5. Development of evaluation and performance verification technology for radiotherapy radiation

    Energy Technology Data Exchange (ETDEWEB)

    Kim, J. Y.; Jang, S. Y.; Kim, B. H. and others

    2005-02-15

    No matter how much the importance is emphasized, the exact assessment of the absorbed doses administered to the patients to treat the various diseases such as lately soaring malignant tumors with the radiotherapy practices is the most important factor. In reality, several over-exposed patients from the radiotherapy practice become very serious social issues. Especially, the development of a technology to exactly assess the high doses and high energies (In general, dose administered to the patients with the radiotherapy practices are very huge doses, and they are about three times higher than the lethal doses) generated by the radiation generators and irradiation equipment is a competing issue to be promptly conducted. Over fifty medical centers in Korea operate the radiation generators and irradiation equipment for the radiotherapy practices. However, neither the legal and regulatory systems to implement a quality assurance program are sufficiently stipulated nor qualified personnel who could run a program to maintain the quality assurance and control of those generators and equipment for the radiotherapy practices in the medical facilities are sufficiently employed. To overcome the above deficiencies, a quality assurance program such as those developed in the technically advanced countries should be developed to exactly assess the doses administered to patients with the radiotherapy practices and develop the necessary procedures to maintain the continuing performance of the machine or equipment for the radiotherapy. The QA program and procedures should induce the fluent calibration of the machine or equipment with quality, and definitely establish the safety of patients in the radiotherapy practices. In this study, a methodology for the verification and evaluation of the radiotherapy doses is developed, and several accurate measurements, evaluations of the doses delivered to patients and verification of the performance of the therapy machine and equipment are

  6. [Survey and analysis of radiation safety education at radiological technology schools].

    Science.gov (United States)

    Ohba, Hisateru; Ogasawara, Katsuhiko; Aburano, Tamio

    2004-10-01

    We carried out a questionnaire survey of all radiological technology schools, to investigate the status of radiation safety education. The questionnaire consisted of questions concerning full-time teachers, measures being taken for the Radiation Protection Supervisor Qualifying Examination, equipment available for radiation safety education, radiation safety education for other departments, curriculum of radiation safety education, and related problems. The returned questionnaires were analyzed according to different groups categorized by form of education and type of establishment. The overall response rate was 55%, and there were statistically significant differences in the response rates among the different forms of education. No statistically significant differences were found in the items relating to full-time teachers, measures for Radiation Protection Supervisor Qualifying Examination, and radiation safety education for other departments, either for the form of education or type of establishment. Queries on the equipment used for radiation safety education revealed a statistically significant difference in unsealed radioisotope institutes among the forms of education. In terms of curriculum, the percentage of radiological technology schools which dealt with neither the shielding calculation method for radiation facilities nor with the control of medical waste was found to be approximately 10%. Other educational problems that were indicated included shortages of full-time teachers and equipment for radiation safety education. In the future, in order to improve radiation safety education at radiological technology schools, we consider it necessary to develop unsealed radioisotope institutes, to appoint more full-time teachers, and to educate students about risk communication.

  7. Development of system technology for radiation cancer therapy with the dexterous auto lesions tracking

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Seungho; Jeong, Kyungmin; Jung, Seungho; Lee, Namho; and others

    2013-01-15

    The project objectives are to establish the fundamental core technologies for precise auto lesions tracking radiation cancer therapy and developing related system technology as well. Radiation cancer therapy apparatus should be domestically produced to reduce medical expenses, hence advanced technologies are suggested and developed to make cost down medical expenses and save expenditure for importing 10 million dollars/set from overseas. To achieve these targets, we have carried out reviewing of domestic and foreign technology trend. Based on review of state-of-the-art technology, radiation sensory system is studied. 3m high precise image processing technique and intelligent therapy planning software are developed. Also precedent study on the redundant robot for dexterous motion control system has been performed for developing of radiation cancel therapy robot system.

  8. Technologies Enabling Custom Radiation-Hardened Component Development Project

    Data.gov (United States)

    National Aeronautics and Space Administration — Two primary paths are available for the creation of a Rad-Hard ASIC. The first approach is to use a radiation hardened process such as existing Rad-Hard foundries....

  9. Balancing technology with face-to-face interaction: navigating the path to psychiatric nursing education at a distance.

    Science.gov (United States)

    Horton-Deutsch, Sara; McNelis, Angela M; Day, Pamela O'Haver

    2012-01-01

    In 2008, we created a program that incorporated pedagogical approaches to support distance education for graduate psychiatric mental health nursing students in Indiana and adjacent states. This narrative provides a brief description of the five initiatives we originally proposed, our experiences with them, and future plans as our program continues to evolve.

  10. Trans Tasman Radiation Oncology Group: Development of the Assessment of New Radiation Oncology Technology and Treatments (ANROTAT) Framework.

    Science.gov (United States)

    Duchesne, Gillian M; Grand, Mel; Kron, Tomas; Haworth, Annette; Corry, June; Jackson, Michael; Ng, Michael; Besuijen, Deidre; Carter, Hannah E; Martin, Andrew; Schofield, Deborah; Gebski, Val; Torony, Joan; Kovacev, Olga; Amin, Rowena; Burmeister, Bryan

    2015-06-01

    The study aim was to develop a generic framework to derive the parameters to populate health-economic models for the rapid evaluation of new techniques and technologies in radiation oncology. A draft framework was developed through horizon scanning for relevant technologies, literature review to identify framework models, and a workshop program with radiation oncology professionals, biostatisticians, health economists and consumers to establish the Framework's structure. It was tested using four clinical protocols, comparing intensity modulated with 3D conformal therapy (post-prostatectomy, anal canal and nasopharynx) and image-guided radiation therapy techniques with off-line review of portal imaging (in the intact prostate). The draft generic research framework consisted of five sequential stages, each with a number of components, and was assessed as to its suitability for deriving the evidence needed to populate the decision-analytic models required for the health-economic evaluations. A final Framework was established from this experience for use by future researchers to provide evidence of clinical efficacy and cost-utility for other novel techniques. The four clinical treatment sites tested during the project were considered suitable to use in future evaluations. Development of a generic research framework to predict early and long-term clinical outcomes, combined with health-economic data, produced a generally applicable method for the rapid evaluation of new techniques and technologies in radiation oncology. Its application to further health technology assessments in the radiation oncology sector will allow further refinement and support its generalisability. © 2014 The Royal Australian and New Zealand College of Radiologists.

  11. Feasibility of Jujube peeling using novel infrared radiation heating technology

    Science.gov (United States)

    Infrared (IR) radiation heating has a promising potential to be used as a sustainable and effective method to eliminate the use of water and chemicals in the jujube-peeling process and enhance the quality of peeled products. The objective of this study was to investigate the feasibility of use IR he...

  12. Nuclear Technology Series. Course 17: Radiation Protection II.

    Science.gov (United States)

    Center for Occupational Research and Development, Inc., Waco, TX.

    This technical specialty course is one of thirty-five courses designed for use by two-year postsecondary institutions in five nuclear technician curriculum areas: (1) radiation protection technician, (2) nuclear instrumentation and control technician, (3) nuclear materials processing technician, (4) nuclear quality-assurance/quality-control…

  13. Nuclear Technology Series. Course 2: Radiation Protection I.

    Science.gov (United States)

    Technical Education Research Center, Waco, TX.

    This technical specialty course is one of thirty-five courses designed for use by two-year postsecondary institutions in five nuclear technician curriculum areas: (1) radiation protection technician, (2) nuclear instrumentation and control technician, (3) nuclear materials processing technician, (4) nuclear quality-assurance/quality-control…

  14. Radiation Protection in the Application of Active Detection Technologies

    Science.gov (United States)

    2013-07-01

    medical diagnostics and therapeutics where the benefits are clear and the risks are knowingly assumed. Unlike radiation workers, such individuals are...Cancer (percent)a Risk of Birth Defect or Spontaneous Abortion for Exposed Embryo or Fetusb Risk of Deterministic Effectsc Examples of Individuals

  15. Quality Characteristics of Dried Bananas Produced with Infrared Radiation Technology

    Science.gov (United States)

    Browning of fruits during drying is a major quality concern. The enzyme polyphenol oxidase has been found to be the main cause of browning in bananas. Infrared radiation (IR) drying could be used to minimize enzymatic browning hence eliminating the need for pre-treatments. This study was to inves...

  16. Nuclear Technology Series. Course 20: Radiation Monitoring Techniques (Radiochemical).

    Science.gov (United States)

    Center for Occupational Research and Development, Inc., Waco, TX.

    This technical specialty course is one of thirty-five courses designed for use by two-year postsecondary institutions in five nuclear technician curriculum areas: (1) radiation protection technician, (2) nuclear instrumentation and control technician, (3) nuclear materials processing technician, (4) nuclear quality-assurance/quality-control…

  17. Nuclear Technology Series. Course 11: Radiation Detection and Measurement.

    Science.gov (United States)

    Technical Education Research Center, Waco, TX.

    This technical specialty course is one of thirty-five courses designed for use by two-year postsecondary institutions in five nuclear technician curriculum areas: (1) radiation protection technician, (2) nuclear instrumentation and control technician, (3) nuclear materials processing technician, (4) nuclear quality-assurance/quality-control…

  18. Current status and prospect of radiation technology for the safety and security of food

    Energy Technology Data Exchange (ETDEWEB)

    Byun, Myung Woo [Korean Society of Radiation Industry, Jeongeup (Korea, Republic of)

    2009-09-15

    Since 1960, radiation technology (RT), which had been known as the method eliminating the biologically hazardous factors of the products in the food, medical, pharmaceutical and cosmetic industries, was comprehensively investigated. The safety of food irradiation has been throughout evaluated with scientific experiments. Recently, RT has been associated with other high technologies such as biotechnology and nanotechnology, and resulted in the innovative products. Through these fusion technology with RT, the new items with high functionality and value will be shown. But, until now, consumers' acceptance on radiation is still the problem to be solved for further development. To make the consumer correctly understand RT, the benefits and defects of RT should be informed and there should be the legislated policy for the industrialization of RT by government. Therefore, this review will introduce the current status of food irradiation in the world, the safety and national agreements and the recent results from radiation fusion technology, and suggest the further work.

  19. Solid-state radiation detectors technology and applications

    CERN Document Server

    2015-01-01

    The book discusses the current solid state material used in advance detectors manufacturing and their pros and cons and how one can tailor them using different techniques, to get the maximum performance. The book is application oriented to radiation detectors for medical, X and gamma rays application, and good reference with in-depth discussion of detector's physics as it relates to medical application tailored for engineers and scientists.

  20. Putting synchrotron radiation to work for technology: Analytic methods

    Energy Technology Data Exchange (ETDEWEB)

    1992-02-01

    This report contains viewgraphs on: Advanced Light Source; Ultra-ESCA: Advanced Capabilities of XPS with High-Brightness Synchrotron Radiation; High-Resolution (20 nm) XPS and XANES with the ALS; Photoelectron Spectroscopy in Industry: Current Capabilities, Needs, and Possible Roles for the ALS; Materials Analysis by Photoemission: Is This Practical at ALS?; Applications of Long-Wavelength X-Ray Fluorescence Spectrometry and X-Ray Powder Diffractometry.

  1. Putting synchrotron radiation to work for technology: Analytic methods

    Energy Technology Data Exchange (ETDEWEB)

    1992-02-01

    This report contains viewgraphs on: Advanced Light Source; Ultra-ESCA: Advanced Capabilities of XPS with High-Brightness Synchrotron Radiation; High-Resolution (20 nm) XPS and XANES with the ALS; Photoelectron Spectroscopy in Industry: Current Capabilities, Needs, and Possible Roles for the ALS; Materials Analysis by Photoemission: Is This Practical at ALS ; Applications of Long-Wavelength X-Ray Fluorescence Spectrometry and X-Ray Powder Diffractometry.

  2. New technologies for radiation-hardening analog to digital converters

    Science.gov (United States)

    Gauthier, M. K.

    1982-01-01

    Surveys of available Analog to Digital Converters (ADC) suitable for precision applications showed that none have the proper combination of accuracy and radiation hardness to meet space and/or strategic weapon requirements. A development program which will result in an ADC device which will serve a number of space and strategic applications. Emphasis was placed on approaches that could be integrated onto a single chip within three to five years.

  3. Conference on Engineering of Scintillation Materials and Radiation Technologies

    CERN Document Server

    Gektin, Alexander

    2017-01-01

    This volume provides a broad overview of the latest achievements in scintillator development, from theory to applications, and aiming for a deeper understanding of fundamental processes, as well as the discovery and availability of components for the production of new generations of scintillation materials. It includes papers on the microtheory of scintillation and the initial phase of luminescence development, applications of the various materials, and development and characterization of ionizing radiation detection equipment. The book also touches upon the increased demand for cryogenic scintillators, the renaissance of  garnet materials for scintillator applications, nano-structuring in scintillator development, development and applications for security, and exploration of hydrocarbons and ecological monitoring.

  4. Radiation Effects on Emerging Technologies: Implications of Space Weather Risk Management

    Science.gov (United States)

    LaBel, Kenneth A.; Barth, Janet L.

    2000-01-01

    As NASA and its space partners endeavor to develop a network of satellites capable of supporting humankind's needs for advanced space weather prediction and understanding, one of the key challenges is to design a space system to operate in the natural space radiation environment In this paper, we present a description of the natural space radiation environment, the effects of interest to electronic or photonic systems, and a sample of emerging technologies and their specific issues. We conclude with a discussion of operations in the space radiation hazard and considerations for risk management.

  5. Characterizing the Radiation Survivability of Space Solar Cell Technologies for Heliospheric Missions

    Science.gov (United States)

    Lee, J. H.; Walker, D.; Mann, C. J.; Yue, Y.; Nocerino, J. C.; Smith, B. S.; Mulligan, T.

    2016-12-01

    Space solar cells are responsible for powering the majority of heliospheric space missions. This paper will discuss methods for characterizing space solar cell technologies for on-orbit operations that rely on a series of laboratory tests that include measuring the solar cells' beginning of life performance under simulated (e.g. AM0 or air mass zero) sunlight over different operating temperatures and observing their end of life performance following exposure to laboratory-generated charged particle radiation (protons and electrons). The Aerospace Corporation operates a proton implanter as well as electron gun facilities and collaborates with external radiation effects facilities to expose space solar cells or other space technologies to representative space radiation environments (i.e. heliosphere or magnetosphere of Earth or other planets), with goals of characterizing how the technologies perform over an anticipated space mission timeline and, through the application of precision diagnostic capabilities, understanding what part of the solar cell is impacted by varying space radiation environments. More recently, Aerospace has been hosting solar cell flight tests on its previously-flown CubeSat avionics bus, providing opportunities to compare the laboratory tests to on-orbit observations. We hope through discussion of the lessons learned and methods we use to characterize how solar cells perform after space radiation exposure that similar methodology could be adopted by others to improve the state of knowledge on the survivability of other space technologies required for future space missions.

  6. Image noise reduction technology reduces radiation in a radial-first cardiac catheterization laboratory

    Energy Technology Data Exchange (ETDEWEB)

    Gunja, Ateka; Pandey, Yagya [Department of Veterans Affairs, Jesse Brown VA Medical Center, Chicago, IL (United States); Division of Cardiology, Department of Medicine, University of Illinois at Chicago, Chicago, IL (United States); Xie, Hui [Division of Epidemiology and Biostatistics, University of Illinois at Chicago, Chicago, IL (United States); Faculty of Health Sciences, Simon Fraser University, Burnaby, BC (Canada); Wolska, Beata M. [Department of Physiology and Biophysics, Center for Cardiovascular Research, University of Illinois at Chicago, Chicago, IL (United States); Shroff, Adhir R.; Ardati, Amer K. [Department of Veterans Affairs, Jesse Brown VA Medical Center, Chicago, IL (United States); Division of Cardiology, Department of Medicine, University of Illinois at Chicago, Chicago, IL (United States); Vidovich, Mladen I., E-mail: miv@uic.edu [Department of Veterans Affairs, Jesse Brown VA Medical Center, Chicago, IL (United States); Division of Cardiology, Department of Medicine, University of Illinois at Chicago, Chicago, IL (United States)

    2017-04-15

    Background: Transradial coronary angiography (TRA) has been associated with increased radiation doses. We hypothesized that contemporary image noise reduction technology would reduce radiation doses in the cardiac catheterization laboratory in a typical clinical setting. Methods and results: We performed a single-center, retrospective analysis of 400 consecutive patients who underwent diagnostic and interventional cardiac catheterizations in a predominantly TRA laboratory with traditional fluoroscopy (N = 200) and a new image noise reduction fluoroscopy system (N = 200). The primary endpoint was radiation dose (mGy cm{sup 2}). Secondary endpoints were contrast dose, fluoroscopy times, number of cineangiograms, and radiation dose by operator between the two study periods. Radiation was reduced by 44.7% between the old and new cardiac catheterization laboratory (75.8 mGy cm{sup 2} ± 74.0 vs. 41.9 mGy cm{sup 2} ± 40.7, p < 0.0001). Radiation was reduced for both diagnostic procedures (45.9%, p < 0.0001) and interventional procedures (37.7%, p < 0.0001). There was no statistically significant difference in radiation dose between individual operators (p = 0.84). In multivariate analysis, radiation dose remained significantly decreased with the use of the new system (p < 0.0001) and was associated with weight (p < 0.0001), previous coronary artery bypass grafting (p < 0.0007) and greater than 3 stents used (p < 0.0004). TRA was used in 90% of all cases in both periods. Compared with a transfemoral approach (TFA), TRA was not associated with higher radiation doses (p = 0.20). Conclusions: Image noise reduction technology significantly reduces radiation dose in a contemporary radial-first cardiac catheterization clinical practice. - Highlights: • Radial arterial access has been associated with higher doses compared to femoral access. • In a radial-first cardiac catheterization laboratory (90% radial) we examined radiation doses reduction with a contemporary image

  7. Psychiatric Genomics

    DEFF Research Database (Denmark)

    Sullivan, Patrick F; Agrawal, Arpana; Bulik, Cynthia M

    2018-01-01

    into biologically, clinically, and therapeutically meaningful insights. The emerging findings suggest that we are entering a phase of accelerated genetic discovery for multiple psychiatric disorders. These findings are likely to elucidate the genetic portions of these truly complex traits, and this knowledge can...... then be mined for its relevance for improved therapeutics and its impact on psychiatric practice within a precision medicine framework. [AJP at 175: Remembering Our Past As We Envision Our Future November 1946: The Genetic Theory of Schizophrenia Franz Kallmann's influential twin study of schizophrenia in 691...

  8. Review of radiation effects on ReRAM devices and technology

    Science.gov (United States)

    Gonzalez-Velo, Yago; Barnaby, Hugh J.; Kozicki, Michael N.

    2017-08-01

    A review of the ionizing radiation effects on resistive random access memory (ReRAM) technology and devices is presented in this article. The review focuses on vertical devices exhibiting bipolar resistance switching, devices that have already exhibited interesting properties and characteristics for memory applications and, in particular, for non-volatile memory applications. Non-volatile memories are important devices for any type of electronic and embedded system, as they are for space applications. In such applications, specific environmental issues related to the existence of cosmic rays and Van Allen radiation belts around the Earth contribute to specific failure mechanisms related to the energy deposition induced by such ionizing radiation. Such effects are important in non-volatile memory as the current leading technology, i.e. flash-based technology, is sensitive to the total ionizing dose (TID) and single-event effects. New technologies such as ReRAM, if competing with or complementing the existing non-volatile area of memories from the point of view of performance, also have to exhibit great reliability for use in radiation environments such as space. This has driven research on the radiation effects of such ReRAM technology, on both the conductive-bridge RAM as well as the valence-change memories, or OxRAM variants of the technology. Initial characterizations of ReRAM technology showed a high degree of resilience to TID, developing researchers’ interest in characterizing such resilience as well as investigating the cause of such behavior. The state of the art of such research is reviewed in this article.

  9. Advances in Linac-Based Technology for Industrial Radiation Processing

    Science.gov (United States)

    McKeown, Joseph

    1997-04-01

    Experience with the Industrial Materials Processing Electron Linear Accelerator, IMPELA, over 30,000 hours of 50 kW operation is reported for three irradiators, two of which are in commercial service. Operations are sufficiently mature that research is now concentrated on split beams, photon conversion, dose monitoring, beam scanning, new shielding designs and QA controls. The efficacy of increasing the incident electron energy on bremsstrahlung converters to 7.5 MeV, as proposed by an IAEA committee, is examined experimentally on an IMPELA accelerator over the energy range 7 MeV to 11 MeV to evaluate conversion efficiency, activation of machine components, converter engineering and the activation of red meat. Above 8 MeV the radioactive isotopes ^38Cl and ^24Na, formed primarily by neutrons produced in a tantalum converter, were clearly identified in the meat, while above 10.5 MeV the radiation from ^13N becomes dominant. Implications for the practicality of processing other high density products are discussed.

  10. Technology Development for Radiation Dose Measurement and Evaluation

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Bong Hwan; Chang, S. Y.; Lee, T. Y. (and others)

    2007-06-15

    The correction factors essential for the operation of In-Vivo counting system were produced and implemented into a field operation for the improvement of accuracy in measurement of the radioactivity inside a human body. The BiDAS2007 code which calculate an internal dose was developed by upgrading the former code prepared in the previous stage of this project. The method of using the multibioassy data, the maximum likelihood function and the Bayesian statistics were established to an internal dose based on the measurement data of radioactivity, intakes and retention of radioactivity in a human body and it can improve the accuracy in estimation of the intakes of radioactivity and the committed effective dose equivalent. In order to solve the problem of low detection efficiency of the conventional Bonner Sphere (BS) to a high energy neutron, the extended BS's were manufactured and the technique for neutron field spectrometry was established. The fast neutron and gamma spectrometry system with a BC501A scintillation detector was also prepared. Several neutron fluence spectra at several nuclear facilities were measured and collected by using the extended BS. The spectrum weighted responses of some neutron monitoring instruments were also derived by using these spectra and the detector response functions. A high efficient TL material for the neutron personal dosimeter was developed. It solved the main problem of low thermal stability and high residual dose of the commercial TLDs and has the sensitivity to neutron and to gamma radiation with 40 and 10 times higher respectively than them.

  11. Nuclear Technology Series. Radiation Protection Technician. A Suggested Program Planning Guide. Revised June 80.

    Science.gov (United States)

    Center for Occupational Research and Development, Inc., Waco, TX.

    This program planning guide for a two-year postsecondary radiation protection technician program is designed for use with courses 17-22 of thirty-five included in the Nuclear Technology Series. The purpose of the guide is to describe the nuclear power field and its job categories for specialists, technicians, and operators; and to assist planners,…

  12. Recent Developments and Applications of Radiation/Detection Technology in Tsinghua University

    Science.gov (United States)

    Kang, Ke-Jun

    2010-03-01

    Nuclear technology applications have been very important research fields in Tsinghua University (THU) for more than 50 years. This paper describes two major directions and related projects running in THU concerning nuclear technology applications for radiation imaging and nuclear technology applications for astrophysics. Radiation imaging is a significant application of nuclear technology for all kinds of real world needs including security inspections, anti-smuggling operations, and medicine. The current improved imaging systems give much higher quality radiation images. THU has produced accelerating tubes for both industrial and medical accelerators with energy levels ranging from 2.5˜20Mev. Detectors have been produced for medical and industrial imaging as well as for high energy physics experiments such as the MRPC with fast time and position resolutions. DR and CT systems for radiation imaging systems have been continuously improved with new system designs and improved algorithms for image reconstruction and processing. Two important new key initiatives are the dual-energy radiography and dual-energy CT systems. Dual-energy CT imaging improves material discrimination by providing both the electron density and the atomic number distribution of scanned objects. Finally, this paper also introduces recent developments related to the hard X-ray modulation telescope (HXMT) provided by THU.

  13. Micro-Mini & Nano-Dosimetry & Innovative Technologies in Radiation Therapy (MMND&ITRO2016)

    Science.gov (United States)

    2017-01-01

    The biennial MMND (formerly MMD) - IPCT workshops, founded in collaboration with Memorial Sloan Kettering Cancer Center (MSKCC) in 2001, has become an important international multidisciplinary forum for the discussion of advanced dosimetric technology for radiation therapy quality assurance (QA) and space science, as well as advanced technologies for prostate cancer treatment. In more recent years, the interests of participants and the scope of the workshops have extended far beyond prostate cancer treatment alone to include all aspects of radiation therapy, radiation science and technology. We therefore decided to change the name in 2016 to Innovative Technologies in Radiation Oncology (ITRO). MMND ITRO 2016 was held on 26-31 January, 2016 at the beautiful Wrest Point Hotel in Hobart, Tasmania and attracted an outstanding international faculty and nearly 200 delegates from 18 countries (http://mmnditro2016.com/) The MMND 2016 program continued to cover advanced medical physics aspects of IMRT, IGRT, VMAT, SBRT, MRI LINAC, innovative brachytherapy, and synchrotron MRT. The demand for sophisticated real time and high temporal and spatial resolution (down to the submillimetre scale) dosimetry methods and instrumentation for end-to-end QA for these radiotherapy technologies is increasing. Special attention was paid to the contribution of advanced imaging and the application of nanoscience to the recent improvements in imaging and radiotherapy. The last decade has seen great progress in charged particle therapy technology which has spread throughout the world and attracted strong current interest in Australia. This demands a better understanding of the fundamental aspects of ion interactions with biological tissue and the relative biological effectiveness (RBE) of protons and heavy ions. The further development of computational and experimental micro-and nano-dosimetry for ions has important application in radiobiology based treatment planning and space radiation

  14. [The development of radiation technologies since Maria Skłodowska-Curie].

    Science.gov (United States)

    Głuszewski, Wojciech; Zagórski, Zbigniew P

    2012-01-01

    The article was written on the occasion of the 100. anniversary of the Nobel Prize in Chemistry awarded to Maria Skłodowska-Curie. The United Nations General Assembly honoured this event by announcing the year 2011 the International Year of Chemistry. Maria Skłodowska-Curie was i.a. the initiator of radiation chemistry, a branch of science analyzing the chemical effects that matter shows when exposed to ionizing radiation. The development of this branch resulted in radiation technologies' applications in many fields of industry, medicine, agriculture, protection of the environment, space research and science. Our point of departure was the article Sur l'etude des courbes de probabilité relatives a l'action des rayons X sur les bacilles that Maria Skłodowska-Curie published in 1929 in the Bulletin of the Académie des sciences. In this study, she presented--for the first time ever--the curves of the so called radiation inactivation, i.e. the relationship between the bacteria life expectancy and the dose of radiation absorbed by it. From the today's point of view, it can be stated that the researcher laid the foundations of the methods of radiation sterilization and material processing by means of radiation. In this context, we recall the history of the first accelerator installation devised and built in 1968 at the Institute of Nuclear Chemistry and Technology in Warsaw. Basing on experiences with the linear electron accelerator, the LAE 13/9 was completed in 1992 as the so far only Polish industrial installation for radiation sterilization of medical products and transplants as well as for food irradiation.

  15. History of International Workshop on Mini-Micro- and Nano- Dosimetry (MMND) and Innovation Technologies in Radiation Oncology (ITRO)

    Science.gov (United States)

    Rosenfeld, Anatoly B.; Zaider, Marco; Yamada, Josh; Zelefsky, Michael J.

    2017-01-01

    The biannual MMND (former MMD) - IPCT workshops was founded in collaboration between the Centre for Medical Radiation Physics, University of Wollongong and the Memorial Sloan Kettering Cancer Center (MSKCC) in 2001 and has become an important international multidisciplinary forum for the discussion of advanced quality assurance (QA) dosimetry technology for radiation therapy and space science, as well as advanced technologies for clinical cancer treatment.

  16. A Demonstrator Analog Signal Processing Circuit in a Radiation Hard SOI-CMOS Technology

    CERN Multimedia

    2002-01-01

    % RD-9 A Demonstrator Analog Signal Processing Circuit in a Radiation Hard SOI-CMOS Technology \\\\ \\\\Radiation hardened SOI-CMOS (Silicon-On-Insulator, Complementary Metal-Oxide- \\linebreak Semiconductor planar microelectronic circuit technology) was a likely candidate technology for mixed analog-digital signal processing electronics in experiments at the future high luminosity hadron colliders. We have studied the analog characteristics of circuit designs realized in the Thomson TCS radiation hard technologies HSOI3-HD. The feature size of this technology was 1.2 $\\mu$m. We have irradiated several devices up to 25~Mrad and 3.10$^{14}$ neutrons cm$^{-2}$. Gain, noise characteristics and speed have been measured. Irradiation introduces a degradation which in the interesting bandwidth of 0.01~MHz~-~1~MHz is less than 40\\%. \\\\ \\\\Some specific SOI phenomena have been studied in detail, like the influence on the noise spectrum of series resistence in the thin silicon film that constitutes the body of the transistor...

  17. Radiation dose reduction during transjugular intrahepatic portosystemic shunt implantation using a new imaging technology.

    Science.gov (United States)

    Spink, C; Avanesov, M; Schmidt, T; Grass, M; Schoen, G; Adam, G; Bannas, P; Koops, A

    2017-01-01

    To compare patient radiation dose in patients undergoing transjugular intrahepatic portosystemic shunt (TIPS) implantation before and after an imaging-processing technology upgrade. In our retrospective single-center-study, cumulative air kerma (AK), cumulative dose area product (DAP), total fluoroscopy time and contrast agent were collected from an age- and BMI-matched collective of 108 patients undergoing TIPS implantation. 54 procedures were performed before and 54 after the technology upgrade. Mean values were calculated and compared using two-tailed t-tests. Two blinded, independent readers assessed DSA image quality using a four-rank likert scale and the Wilcoxcon test. The new technology demonstrated a significant reduction of 57% of mean DAP (402.8 vs. 173.3Gycm(2), ptechnology. Time of fluoroscopy (26.4 vs. 27.8min, p=0.45) and amount of contrast agent (109.4 vs. 114.9ml, p=0.62) did not differ significantly between the two groups. The DSA image quality of the new technology was not inferior (2.66 vs. 2.77, p=0.56). In our study the new imaging technology halved radiation dose in patients undergoing TIPS maintaining sufficient image quality without a significant increase in radiation time or contrast consumption. Copyright © 2016 Elsevier Ireland Ltd. All rights reserved.

  18. POTENTIAL AND FUTURE TRENDS ON INDUSTRIAL RADIATION PROCESSING TECHNOLOGY APPLICATION IN EMERGING COUNTRY - BRAZIL

    Energy Technology Data Exchange (ETDEWEB)

    Sampa, M.H.O.; Omi, N.M.; Rela, C.S.; Tsai, D.

    2004-10-06

    Brazil started the use of radiation technology in the seventies on crosslinking polyethylene for insulation of wire and electronic cables and sterilization of medical care devices. The present status of industrial applications of radiation shows that the use of this technology is increasing according to the economical development and the necessity to become the products manufactured in the local industries competitive in quality and price for internal and external market. The on going development activities in this area are concentrated on polymers processing (materials modification), foodstuff treatment and environmental protection. The development, the promotion and the technical support to consolidate this technology to the local industries is the main attribution of Institute for Energetic and Nuclear Research-IPEN, a governmental Institution.

  19. Characterization and radiation studies of diode test structures in LFoundry CMOS technology

    Energy Technology Data Exchange (ETDEWEB)

    Daas, Michael; Gonella, Laura; Hemperek, Tomasz; Huegging, Fabian; Krueger, Hans; Pohl, David-Leon; Wermes, Norbert [Physikalisches Institut der Universitaet Bonn (Germany); Macchiolo, Anna [Max-Planck-Institut fuer Physik, Muenchen (Germany)

    2016-07-01

    In order to prepare for the High Luminosity upgrade of the LHC, all subdetector systems of the ATLAS experiment will be upgraded. In preparation for this process, different possibilities for new radiation-hard and cost-efficient silicon sensor technologies to be used as part of hybrid pixel detectors in the ATLAS inner tracker are being investigated. One promising way to optimize the cost-efficiency of silicon-based pixel detectors is to use commercially available CMOS technologies such as the 150 nm process by LFoundry. In this talk, several CMOS pixel test structures, such as simple diodes and small pixel arrays, that were manufactured in this technology are characterized regarding general performance and radiation hardness and compared to each other as well as to the current ATLAS pixel detector.

  20. Technology Assessment and Roadmap for the Emergency Radiation Dose Assessment Program

    Energy Technology Data Exchange (ETDEWEB)

    Turteltaub, K W; Hartman-Siantar, C; Easterly, C; Blakely, W

    2005-10-03

    A Joint Interagency Working Group (JIWG) under the auspices of the Department of Homeland Security Office of Research and Development conducted a technology assessment of emergency radiological dose assessment capabilities as part of the overall need for rapid emergency medical response in the event of a radiological terrorist event in the United States. The goal of the evaluation is to identify gaps and recommend general research and development needs to better prepare the Country for mitigating the effects of such an event. Given the capabilities and roles for responding to a radiological event extend across many agencies, a consensus of gaps and suggested development plans was a major goal of this evaluation and road-mapping effort. The working group consisted of experts representing the Departments of Homeland Security, Health and Human Services (Centers for Disease Control and the National Institutes of Health), Food and Drug Administration, Department of Defense and the Department of Energy's National Laboratories (see appendix A for participants). The specific goals of this Technology Assessment and Roadmap were to: (1) Describe the general context for deployment of emergency radiation dose assessment tools following terrorist use of a radiological or nuclear device; (2) Assess current and emerging dose assessment technologies; and (3) Put forward a consensus high-level technology roadmap for interagency research and development in this area. This report provides a summary of the consensus of needs, gaps and recommendations for a research program in the area of radiation dosimetry for early response, followed by a summary of the technologies available and on the near-term horizon. We then present a roadmap for a research program to bring present and emerging near-term technologies to bear on the gaps in radiation dose assessment and triage. Finally we present detailed supporting discussion on the nature of the threats we considered, the status of

  1. The role of IAEA in coordinating research and transferring technology in radiation chemistry and processing of polymers

    Energy Technology Data Exchange (ETDEWEB)

    Haji-Saeid, M. [International Atomic Energy Agency (IAEA), Wagramer Strasse 5, A-1400 Vienna (Austria)], E-mail: M.Haji-Saeid@iaea.org; Sampa, M.H.; Ramamoorthy, N. [International Atomic Energy Agency (IAEA), Wagramer Strasse 5, A-1400 Vienna (Austria); Gueven, O. [Hacettepe University, Department of Chemistry, Ankara (Turkey); Chmielewski, A.G. [Faculty of Chemical and Process Engineering, Warsaw University of Technology, Warsaw (Poland)

    2007-12-15

    The IAEA has been playing a significant role in fostering developments in radiation technology in general and radiation processing of polymers in particular, among its Member States (MS) and facilitate know-how/technology transfer to developing MS. The former is usually achieved through coordinated research projects (CRP) and thematic technical meetings, while the latter is mainly accomplished through technical cooperation (TC) projects. Coordinated research projects encourage research on, and development and practical application of, radiation technology to foster exchange of scientific and technical information. The technical cooperation (TC) programme helps Member States to realize their development priorities through the application of appropriate radiation technology. The IAEA has implemented several coordinated research projects (CRP) recently, including one on-going project, in the field of radiation processing of polymeric materials. The CRPs facilitated the acquisition and dissemination of know-how and technology for controlling of degradation effects in radiation processing of polymers, radiation synthesis of stimuli-responsive membranes, hydrogels and absorbents for separation purposes and the use of radiation processing to prepare biomaterials for applications in medicine. The IAEA extends cooperation to well-known international conferences dealing with radiation technology to facilitate participation of talented scientists from developing MS and building collaborations. The IAEA published technical documents, covering the findings of thematic technical meetings (TM) and coordinated research projects have been an important source of valuable practical information.

  2. The Evolution of External Beam Radiation Therapy (EBRT) from a Technological Perspective.

    Science.gov (United States)

    Detorie, Nicholas

    2008-03-01

    Since the discovery of x-rays by Roentgen in 1895 ionizing radiations have been used as a treatment for cancer. Such treatments have been based on either implantation of radioactive materials at the site of disease or by aiming external radiation beams at the diseased site. This later method is referred to as teletherapy because the beams originate from a location outside of the body distant from the disease site itself. A brief review of the basic radiation biology will be given to illustrate the rationale for therapeutic use of ionizing radiations and the effects of beam energy and beam type- particulate or photon. The remainder of the presentation will focus on the technological teletherapy developments supported by the required physical properties of the beams and their associated characteristics that make them suitable for patient treatments. Chronological highlights will include the following sources or devices: superficial x-rays, orthovaltage x-rays, megavoltage x-rays and Cobalt 60 photons, electron beams, neutron beams, negative pi mesons, protons, and heavy ions. The presentation will illustrate how the physical beam properties have been incorporated into modern radiation treatment devices, many of which are equipped with radiation imaging capability. Such devices include: linacs equipped with multileaf collimators for beam shaping and intensity modulation, the Gamma Knife for precise and accurate irradiation of brain tumors or arterial-venous malformations (AVM), the robotic arm based Cyber Knife, and the Helical Tomotherapy unit.

  3. Space Photovoltaic Research and Technology 1980. High Efficiency, Radiation Damage and Blanket Technology

    Science.gov (United States)

    1980-01-01

    The application of silicon solar cells are discussed with respect to their importance in the exploration of space. Several aspects of the technology associated with the development of photovoltaic devices are reported.

  4. Analysis of methodology for designing education and training model for professional development in the field of radiation technology

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Kon Wuk; Lee, Jae Hun; Park, Tai Jin; Song, Myung Jae [Korean Association for Radiation Application, Seoul (Korea, Republic of)

    2015-02-15

    The domestic Radiation Technology is integrated into and utilized in various areas and is closely related to the industrial growth in Korea. The domestic use of radiation and RI (Radioisotope) increases in quantity every year, however the level of technology is poor when compared to other developed countries. Manpower training is essential for the development of Radiation Technology. Therefore, this study aimed to propose a methodology for designing systemic education and training model in the field of measurement and analysis of radiation. A survey was conducted to design education and training model and the training program for measurement and analysis of radiation was developed based on the survey results. The education and training program designed in this study will be utilized as a model for evaluating the professional development and effective recruitment of the professional workforce, and can be further applied to other radiation-related fields.

  5. The multistage heat pipe radiator - An advancement in passive cooling technology

    Science.gov (United States)

    Wilson, D. E.; Wright, J. P.

    1977-01-01

    Mathematical models were developed for one-, two-, and three-stage radiator systems to determine optimum stage areas and system performance as a function of such parameters as insulation effectiveness, cold stage temperature, and heat load to the cold and intermediate stages. This study shows that multistage radiator systems can be optimized on the basis of weight or projected area, and that cold stage temperatures as low as 15 K are theoretically possible with present technology levels for insulation emittance. For the baseline design, analyses were performed to determine optimum radiator fin geometry and heat pipe spacing as a function of temperature, material properties, and heat pipe weight. In addition, a ground test system was designed for the baseline design with heat rejection requirements of 10 MW at 35 K on the cold stage and 100 MW at the second stage.

  6. Development of Radiation Fusion Technology for the Ruptured Ligament Reconstruction with a Porcine Xenograft

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Jaehun; Kim, Jaekyung; Park, Jongheum; and others

    2013-08-15

    This project was accomplished to develop the radiation fusion technology for production of bioitransplant materials (tendon/ligament) which have high bio-suitability, resulting in import replacement and improved industrial competency and public health. The major results of this project are development of the technology to remove immunogen, which repressing immune rejection, response, development of cross-linking technology to improve physical properties, development of the technology to improve safety and remove pathogenic sources, evaluation of tissue suitability and reconstruction through short/long term animal experiment, and development of materials for customized preclinical use. From the results, we can expect the replacement of import and establishment of export base by development of hetero-tissues, establishment of safe supply and improvement of public health for high demand of biotissue product because of low birth rate, aging society, and industralization.

  7. Rise of radiation protection: science, medicine and technology in society, 1896--1935

    Energy Technology Data Exchange (ETDEWEB)

    Serwer, D.P.

    1976-12-01

    The history of radiation protection before World War II is treated as a case study of interactions between science, medicine, and technology. The fundamental concerns include the following: are how medical and technical decisions with social impacts are made under conditions of uncertainty; how social pressures are brought to bear on the development of science, medicine, and technology; what it means for medicine or technology to be scientific; why professional groups seek international cooperation; and the roles various professionals and organizations play in controlling the harmful side effects of science, medicine, and technology. These questions are addressed in the specific context of protection from the biological effects of x-rays and radium in medical use.

  8. The analysis on the basic technology and radiation induced voltaic mechanism for nuclear battery

    Energy Technology Data Exchange (ETDEWEB)

    Hwang, Woan; Lee, B. O.; Min, B. T.; Kang, H. Y.; Kim, B. H.; Park, J. H.; Seo, H. S

    2000-12-01

    Present study is for nuclear battery technology directly converting radiation energy to electricity among various nuclear energy, and it is anticipated that an interest in direct conversion of nuclear energy into electricity shall be increased as the conversion efficiency enhances. The battery should promise cheap, reliable power from a package small and light enough to be mobile, and with energy density great enough for use as a space based power supply. Various radiation-electricity conversion mechanism so far have been reported since G.J. Moseley reported the operation of a high-voltage nuclear battery using radium. The most important conversion mechanisms are RTG (Radioisotope Thermoelectric Generator) converting the heat produced from radioisotope to electricity using the temperature difference, and NRG (Nuclear Resonance Generator) using free electrons from the collision between {alpha}, {beta}rays and copper coil. It is well known that RTG and NRG mechanisms are most practical way because their efficiencies high. The basic technology on radiation-electricity conversion mechanism, interaction mechanism between {beta} ray and material, shielding for {beta} ray, and technical backgrounds and a state of the art for RTG and NRG technologies, are analyzed in this report. Basic data on the conceptual design for the prototype of nuclear battery are prepared.

  9. Psychiatric disorders among women and men in assisted reproductive technology (ART) treatment. The Danish National ART-Couple (DANAC) cohort

    DEFF Research Database (Denmark)

    Schmidt, Lone; Hageman, Ida; Hougaard, Charlotte Ørsted

    2013-01-01

    INTRODUCTION: There are complex causal associations between mental disorders, fertility treatment, fertility treatment outcome and infertility per se. Eating disorders cause endocrine disturbances, anovulation and thereby infertility, and research has shown that infertility as well as unsuccessful...... assisted reproductive technology (ART) treatment are potential risk factors for developing a depression on a long-term basis. Despite the fact that worldwide more than 400 000 ART treatment cycles are performed every year, the causal associations between mental disorders, use of medication for mental...... disorders and ART treatment in both sexes have only been sparsely explored. METHOD AND ANALYSIS: The main objective of this national register-based cohort study is to assess women's and men's mental health before, during, and after ART treatment in comparison with the mental health in an age...

  10. Promoting the Appropriate Use of Advanced Radiation Technologies in Oncology: Summary of a National Cancer Policy Forum Workshop.

    Science.gov (United States)

    Smith, Grace L; Ganz, Patricia A; Bekelman, Justin E; Chmura, Steven J; Dignam, James J; Efstathiou, Jason A; Jagsi, Reshma; Johnstone, Peter A; Steinberg, Michael L; Williams, Stephen B; Yu, James B; Zietman, Anthony L; Weichselbaum, Ralph R; Tina Shih, Ya-Chen

    2017-03-01

    Leaders in the oncology community are sounding a clarion call to promote "value" in cancer care decisions. Value in cancer care considers the clinical effectiveness, along with the costs, when selecting a treatment. To discuss possible solutions to the current obstacles to achieving value in the use of advanced technologies in oncology, the National Cancer Policy Forum of the National Academies of Sciences, Engineering, and Medicine held a workshop, "Appropriate Use of Advanced Technologies for Radiation Therapy and Surgery in Oncology" in July 2015. The present report summarizes the discussions related to radiation oncology. The workshop convened stakeholders, including oncologists, researchers, payers, policymakers, and patients. Speakers presented on key themes, including the rationale for a value discussion on advanced technology use in radiation oncology, the generation of scientific evidence for value of advanced radiation technologies, the effect of both scientific evidence and "marketplace" (or economic) factors on the adoption of technologies, and newer approaches to improving value in the practice of radiation oncology. The presentations were followed by a panel discussion with dialogue among the stakeholders. Challenges to generating evidence for the value of advanced technologies include obtaining contemporary, prospective, randomized, and representative comparative effectiveness data. Proposed solutions include the use of prospective registry data; integrating radiation oncology treatment, outcomes, and quality benchmark data; and encouraging insurance coverage with evidence development. Challenges to improving value in practice include the slow adoption of higher value and the de-adoption of lower value treatments. The proposed solutions focused on engaging stakeholders in iterative, collaborative, and evidence-based efforts to define value and promote change in radiation oncology practice. Recent examples of ongoing or successful responses to the

  11. Substantial radiation reduction in pediatric and adult congenital heart disease interventions with a novel X-ray imaging technology

    National Research Council Canada - National Science Library

    Haas, Nikolaus A; Happel, Christoph M; Mauti, Maria; Sahyoun, Cherif; Tebart, Lea Z; Kececioglu, Deniz; Laser, Kai Thorsten

    2015-01-01

    .... This study aims at quantifying the patient radiation dose reduction after the introduction of an X-ray imaging technology using advanced real time image noise reduction algorithms and optimized...

  12. Practice patterns of radiation therapy technology in Australia: results of a national audit.

    Science.gov (United States)

    Bridge, Pete; Dempsey, Shane; Giles, Eileen; Maresse, Sharon; McCorkell, Giulia; Opie, Craig; Wright, Caroline; Carmichael, Mary-Ann

    2015-12-01

    This article presents the results of a single-day census of radiation therapy (RT) treatment and technology use in Australia. The primary aim of the study was to ascertain patterns of RT practice and technology in use across Australia. These data were primarily collated to inform curriculum development of academic programs, thereby ensuring that training is matched to workforce patterns of practice. The study design was a census method with all 59 RT centres in Australia being invited to provide quantitative summary data relating to patient case mix and technology use on a randomly selected but common date. Anonymous and demographic-free data were analysed using descriptive statistics. Overall data were provided across all six Australian States by 29 centres of a possible 59, yielding a response rate of 49% and representing a total of 2743 patients. Findings from this study indicate the increasing use of emerging intensity-modulated radiotherapy (IMRT), image fusion and image-guided radiation therapy (IGRT) technology in Australian RT planning and delivery phases. IMRT in particular was used for 37% of patients, indicating a high uptake of the technology in Australia when compared to other published data. The results also highlight the resource-intensive nature of benign tumour radiotherapy. In the absence of routine national data collection, the single-day census method offers a relatively convenient means of measuring and tracking RT resource utilisation. Wider use of this tool has the potential to not only track trends in technology implementation but also inform evidence-based guidelines for referral and resource planning.

  13. Application of Radiation Chemistry to Some Selected Technological Issues Related to the Development of Nuclear Energy.

    Science.gov (United States)

    Bobrowski, Krzysztof; Skotnicki, Konrad; Szreder, Tomasz

    2016-10-01

    The most important contributions of radiation chemistry to some selected technological issues related to water-cooled reactors, reprocessing of spent nuclear fuel and high-level radioactive wastes, and fuel evolution during final radioactive waste disposal are highlighted. Chemical reactions occurring at the operating temperatures and pressures of reactors and involving primary transients and stable products from water radiolysis are presented and discussed in terms of the kinetic parameters and radiation chemical yields. The knowledge of these parameters is essential since they serve as input data to the models of water radiolysis in the primary loop of light water reactors and super critical water reactors. Selected features of water radiolysis in heterogeneous systems, such as aqueous nanoparticle suspensions and slurries, ceramic oxides surfaces, nanoporous, and cement-based materials, are discussed. They are of particular concern in the primary cooling loops in nuclear reactors and long-term storage of nuclear waste in geological repositories. This also includes radiation-induced processes related to corrosion of cladding materials and copper-coated iron canisters, dissolution of spent nuclear fuel, and changes of bentonite clays properties. Radiation-induced processes affecting stability of solvents and solvent extraction ligands as well oxidation states of actinide metal ions during recycling of the spent nuclear fuel are also briefly summarized.

  14. Fundamental R and D on neutron cross sections for innovative reactors using advanced radiation measurement technology

    Energy Technology Data Exchange (ETDEWEB)

    Igashira, M. [Tokyo Inst. of Tech. (Japan); Mizumoto, M.; Oshima, M.; Hasegawa, A. [Japan Atomic Energy Research Inst. (Japan); Harada, H. [Japan Nuclear Cycle Dept. Inst. (Japan); Yamano, N. [Sumitomo Atomic Energy Industries, Ltd. (Japan); Yamana, H. [Kyoto Univ. (Japan); Baba, M. [Tohoku Univ. (Japan); Kato, K. [Hokkaido Univ. (Japan); Sugawara, M. [Chiba Inst. of Tech. (Japan); Nagai, Y. [Osaka Univ. (Japan); Kawade, K. [Nagoya Univ. (Japan)

    2003-07-01

    ross Sections for Innovative Reactors using Advanced Radiation Measurement Technology'' to the Ministry of Education, Culture, Sports, Science and Technology (MEXT) and it was approved as one of ''Innovative Nuclear Energy System Technology (INEST) Development Projects (Field of Innovative Nuclear Reactor Technology)''. This project consists of three R and D items, i.e. (1) the development of advanced measurement technology, (2) the acquirement of neutron cross sections of minor actinides, and (3) the development of neutron cross section utilization system. In the development of advanced measurement technology, we will construct a 4{pi} Ge spectrometer consisting HPGe crystals and BGO shields for the measurement of capture cross sections. New fission chambers are also being developed for the measurement of fission cross sections. The measurement of capture and fission cross sections of minor actinides such as Am-241 and Am-243 will be performed from 2005 to 2007, using the existing neutron sources at Japan Atomic Energy Research Institute, Kyoto University, and Tohoku University. The preparation of neutron beam lines, neutron monitor detectors, and minor actinide samples is in progress. (orig.)

  15. Studies on Development of Space Kimchi Using Radiation Fusion Technology with Food Technology

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Ju Woon; Byun, Myung Woo; Kim, Jae Hun; Song, Beom Seok; Park, Jin Kyu; Park, Jae Nam

    2007-04-15

    Kimchi is Korean traditional fermented vegetable, it was known to one of health food through the world 5 sorts and to one of culture bequest of 100 kinds. In this study, it was conducted to development of Korean space food. Object of the study is development of food processed technology for long term storage and stability of supply at severe environment such as space, desert, deep sea. Irradiation technology is cold sterilization method, and it is able to fusion with the other food manufacturing and additives using method. Therefore, this study can offer to basic information for development of Korean space food. Side by side, it was expected that preceding results were able to wide utilization extension such as export of cured fermentation food. This study was conducted to evaluate the combined effects of additives (A), N2-packaging (N{sub 2}), mild heating at 60 .deg. C (HT) and gamma irradiation of 25 kGy (IR) at frozen state (F) on the shelf stability and quality of Kimchi during storage at 35 .deg. C for 30 days. Briefly, combination treatment of heat and irradiation was considered as the effective method to improve the shelf-stability of Kimchi. However, sensory quality was decreased. After all, irradiation was conducted at Kimchi samples for quality maintenance after gas exchange packaging method such as N{sub 2}-packaging, quick freezing(-70 .deg. C). Therefore, the combination treatment was effected to insurance of shelf-life and satisfaction of quality. But other methods needed for inhibition deterioration of texture. Calcium lactate and vitamin C were added at Kimchi for prevention of softening, oleoresin paprika and artificial Kimchi flavor were added for improvement of sensory quality decreased by severe sterilization.

  16. Technological yields of sources for radiation processing; Wydajnosci technologiczne zrodel do obrobki radiacyjnej

    Energy Technology Data Exchange (ETDEWEB)

    Zagorski, Z.P. [Institute of Nuclear Chemistry and Technology, Warsaw (Poland)

    1993-12-31

    The present report is prepared for planners of radiation processing of any material. Calculations are focused on accelerators of electrons, divided into two groups: versatile linacs of energy up to 13 MeV, and accelerators of lower energy, below 2 MeV, of better energy yield but of limited applications. The calculations are connected with the confrontation of the author`s technological expectations during the preparation of the linac project in the late `60s, with the results of 25 years of exploitation of the machine. One has to realize that from the 200 kW input power from the mains, only 5 kW of bent and scanned beam is recovered on the conveyor. That power is only partially used for radiation induced phenomena, because of the demanded homogeneity of the dose, of the mode of packing of the object and its shape, of edges of the scanned area and in the spaces between boxes, and of loses during the idle time due to the tuning of the machine and dosimetric operations. The use of lower energy accelerators may be more economical than that of linacs in case of objects of specific type. At the first stage already, that is of the conversion of electrical power into that of low energy electron beam, the yield is 2-3 times better than in the case of linacs. Attention has been paid to the technological aspects of electron beam conversion into the more penetrating Bremsstrahlung similar to gamma radiation. The advantages of technologies, which make possible a control of the shape of the processed object are stressed. Special attention is focused to the relation between the yield of processing and the ratio between the maximum to the minimum dose in the object under the irradiation. (author). 14 refs, 14 figs.

  17. X-ray technology and radiation protection in dentistry practice. 3. ed.; Roentgentechnik und Strahlenschutz in der Zahnaerztlichen Praxis. Ein Handbuch fuer Zahnaerztliche Fachangestellte

    Energy Technology Data Exchange (ETDEWEB)

    Eichhorn, M.

    2012-07-01

    The booklet includes the following chapters: (1) General information on X-ray technology. (2) Contact with patients. (3) Hygienic measures in the X.ray diagnostics. (4) Fundamentals of radiation protection. (5) Dose units and their measurement. (6) X-ray devices and image receiver systems. (7) Imaging problems and image quality. (8) Radiation protection problems. (9) Quality assurance. (10) Fundamentals on the radiological setting technology. (11) Information of the Federal dentist's organization on quality assurance in dental X-ray technology. (12) Fundamentals of radiation biology. (13) Natural radiation sources. (14) Artificial radiation sources. (15) Legal regulations. (16) Physical quantities and units. (17) Basic knowledge on radiation protection.

  18. Analysis of technologies and experiences for reducing occupational radiation dose and study for applying to regulations

    Energy Technology Data Exchange (ETDEWEB)

    Moon, Joo Hyun; Park, Moon Soo; Lee, Un Jang; Song, Jae Hyuk; Kim, Byeong Soo; Kim, Chong Uk [Seoul National Univ., Seoul (Korea, Republic of)

    2003-01-15

    To reduce Occupational Radiation Dose (ORD) effectively and enhance the radiological safety, the comprehensive assessment of the experiences to reduce ORD should be made by regulatory body as well as utilities. Hence, the objective of this study is to assess the experiences for reducing ORD from the regulatory viewpoint. With the research objective, the followings are performed in this research; analysis of occupational dose trends at domestic and foreign NPPs, identification of the effective technologies for reducing ORD, examination of the effects of the technologies for reducing ORD, derivation of the regulatory means for implementing he research results. From this study, the regulatory means for effective reduction of ORD are derived. Hence, the results can be utilized as a basic materials for ALARA requirements.

  19. Electromagnetic Fields, Pulsed Radiofrequency Radiation, and Epigenetics: How Wireless Technologies May Affect Childhood Development.

    Science.gov (United States)

    Sage, Cindy; Burgio, Ernesto

    2018-01-01

    Mobile phones and other wireless devices that produce electromagnetic fields (EMF) and pulsed radiofrequency radiation (RFR) are widely documented to cause potentially harmful health impacts that can be detrimental to young people. New epigenetic studies are profiled in this review to account for some neurodevelopmental and neurobehavioral changes due to exposure to wireless technologies. Symptoms of retarded memory, learning, cognition, attention, and behavioral problems have been reported in numerous studies and are similarly manifested in autism and attention deficit hyperactivity disorders, as a result of EMF and RFR exposures where both epigenetic drivers and genetic (DNA) damage are likely contributors. Technology benefits can be realized by adopting wired devices for education to avoid health risk and promote academic achievement. © 2017 The Authors. Child Development © 2017 Society for Research in Child Development, Inc.

  20. Instrumentation for beam radiation and luminosity measurement in the CMS experiment using novel detector technologies

    CERN Document Server

    Guthoff, Moritz

    2016-01-01

    The higher energy and luminosity of the LHC initiated the development of dedicated technologies for radiation monitoring and luminosity measurement. A pixelated luminosity detector counts coincidences in several three layer telescopes of silicon pixel detectors to measure the luminosity for each colliding LHC bunch pair. In addition, charged particle tracking allows to monitor the location of the collision point.The upgraded fast beam conditions monitor measures the particle flux using 24 two pad single crystalline diamond sensors, equipped with a fast front-end ASIC produced in 130 nm CMOS technology. The excellent time resolution is used to separate collision products from machine induced background.A new beam-halo monitor at larger radius exploits Cerenkov light produced by relativistic charged particles in fused quartz crystals to provide direction sensitivity and time resolution to separate incoming and outgoing particles. The back-end electronics of the beam monitoring systems includes dedicated modules...

  1. Efficacy of ultraviolet radiation as an alternative technology to inactivate microorganisms in grape juices and wines.

    Science.gov (United States)

    Fredericks, Ilse N; du Toit, Maret; Krügel, Maricel

    2011-05-01

    Since sulphur dioxide (SO(2)) is associated with health risks, the wine industry endeavours to reduce SO(2) levels in wines with new innovative techniques. The aim of this study was, therefore, to investigate the efficacy of ultraviolet radiation (UV)-C (254 nm) as an alternative technology to inactivate microorganisms in grape juices and wines. A pilot-scale UV-C technology (SurePure, South Africa) consisting of an UV-C germicidal lamp (100 W output; 30 W UV-C output) was used to apply UV-C dosages ranging from 0 to 3672 J l(-1), at a constant flow rate of 4000 l h(-1) (Re > 7500). Yeasts, lactic and acetic acid bacteria were singly and co-inoculated into 20 l batches of Chenin blanc juice, Shiraz juice, Chardonnay wine and Pinotage wine, respectively. A dosage of 3672 J l(-1), resulted in an average log(10) microbial reduction of 4.97 and 4.89 in Chardonnay and Pinotage, respectively. In Chenin blanc and Shiraz juice, an average log(10) reduction of 4.48 and 4.25 was obtained, respectively. UV-C efficacy may be influenced by liquid properties such as colour and turbidity. These results had clearly indicated significant (p < 0.05) germicidal effect against wine-specific microorganisms; hence, UV-C radiation may stabilize grape juice and wine microbiologically in conjunction with reduced SO(2) levels. Copyright © 2010 Elsevier Ltd. All rights reserved.

  2. Radiative forcing associated with particulate carbon emissions resulting from the use of mercury control technology.

    Science.gov (United States)

    Lin, Guangxing; Penner, Joyce E; Clack, Herek L

    2014-09-02

    Injection of powdered activated carbon (PAC) adsorbents into the flue gas of coal fired power plants with electrostatic precipitators (ESPs) is the most mature technology to control mercury emissions for coal combustion. However, the PAC itself can penetrate ESPs to emit into the atmosphere. These emitted PACs have similar size and optical properties to submicron black carbon (BC) and thus could increase BC radiative forcing unintentionally. The present paper estimates, for the first time, the potential emission of PAC together with their climate forcing. The global average maximum potential emissions of PAC is 98.4 Gg/yr for the year 2030, arising from the assumed adoption of the maximum potential PAC injection technology, the minimum collection efficiency, and the maximum PAC injection rate. These emissions cause a global warming of 2.10 mW m(-2) at the top of atmosphere and a cooling of -2.96 mW m(-2) at the surface. This warming represents about 2% of the warming that is caused by BC from direct fossil fuel burning and 0.86% of the warming associated with CO2 emissions from coal burning in power plants. Its warming is 8 times more efficient than the emitted CO2 as measured by the 20-year-integrated radiative forcing per unit of carbon input (the 20-year Global Warming Potential).

  3. Radiative Forcing associated with Particulate Carbon Emissions resulting from the Use of Mercury Control Technology

    Science.gov (United States)

    Clack, H.; Penner, J. E.; Lin, G.

    2013-12-01

    Mercury is a persistent, toxic metal that bio-accumulates within the food web and causes neurological damage and fetal defects in humans. The U.S. was the first country to regulate the leading anthropogenic source of mercury into the atmosphere: coal combustion for electric power generation. The U.S. EPA's 2005 Clean Air Mercury Rule (CAMR) was replaced and further tightened in 2012 by the Mercury and Air Toxics Standard (MATS), which required existing coal-fired utilities to reduce their mercury emissions by approximately 90% by 2015. Outside the U.S., the Governing Council of the United Nations Environment Programme (UNEP) has passed the legally binding Minamata global mercury treaty that compels its signatory countries to prevent and reduce the emission and release of mercury. The most mature technology for controlling mercury emissions from coal combustion is the injection into the flue gas of powdered activated carbon (PAC) adsorbents having chemically treated surfaces designed to rapidly oxidize and adsorb mercury. However, such PAC is known to have electrical properties that make it difficult to remove from flue gas via electrostatic precipitation, by far the most common particulate control technology used in countries such as the U.S., India, and China which rely heavily on coal for power generation. As a result, PAC used to control mercury emissions can be emitted into the atmosphere, the sub-micron fraction of which may result in unintended radiative forcing similar to black carbon (BC). Here, we estimate the potential increases in secondary BC emissions, those not produced from combustion but arising instead from the use of injected PAC for mercury emission reduction. We also calculate the radiative forcing associated with these secondary BC emissions by using a global atmospheric chemical transport model coupled with a radiative transfer model.

  4. Application and development of ion-source technology for radiation-effects testing of electronics

    Science.gov (United States)

    Kalvas, T.; Javanainen, A.; Kettunen, H.; Koivisto, H.; Tarvainen, O.; Virtanen, A.

    2017-09-01

    Studies of heavy-ion induced single event effect (SEE) on space electronics are necessary to verify the operation of the components in the harsh radiation environment. These studies are conducted by using high-energy heavy-ion beams to simulate the radiation effects in space. The ion beams are accelerated as so-called ion cocktails, containing several ion beam species with similar mass-to-charge ratio, covering a wide range of linear energy transfer (LET) values also present in space. The use of cocktails enables fast switching between beam species during testing. Production of these high-energy ion cocktails poses challenging requirements to the ion sources because in most laboratories reaching the necessary beam energies requires very high charge state ions. There are two main technologies producing these beams: The electron beam ion source EBIS and the electron cyclotron resonance ion source ECRIS. The EBIS is most suitable for pulsed accelerators, while ECRIS is most suitable for use with cyclotrons, which are the most common accelerators used in these applications. At the Accelerator Laboratory of the University of Jyväskylä (JYFL), radiation effects testing is currently performed using a K130 cyclotron and a 14 GHz ECRIS at a beam energy of 9.3 MeV/u. A new 18 GHz ECRIS, pushing the limits of the normal conducting ECR technology is under development at JYFL. The performances of existing 18 GHz ion sources have been compared, and based on this analysis, a 16.2 MeV/u beam cocktail with 1999 MeV 126Xe44+ being the most challenging component to has been chosen for development at JYFL. The properties of the suggested beam cocktail are introduced and discussed.

  5. Significant Radiation Dose Reduction in the Hybrid Operating Room Using a Novel X-ray Imaging Technology.

    Science.gov (United States)

    van den Haak, R F F; Hamans, B C; Zuurmond, K; Verhoeven, B A N; Koning, O H J

    2015-10-01

    To prospectively quantify radiation dose change in aortoiliac endovascular procedures in the hybrid operating room (OR) for patients and medical staff with a novel X-ray imaging technology (ClarityIQ technology), and to assess whether procedure or fluoroscopy time or dose of iodinated contrast was affected. A prospective study including 138 patients was performed to compare radiation dose before and after installation of a novel X-ray imaging technology. Endovascular aneurysm repair (EVAR) was performed in 37 patients and an endovascular procedure for aortoiliac occlusive disease (AIOD) in 101. Patient radiation dose in air kerma (AK) and dose area product (DAP), patient demographics, and procedural data were recorded. Staff radiation dose was measured with real time personal dosimetry measurements. In both the EVAR and AIOD groups the reference system, ALX (AlluraXper FD20; Philips Healthcare, Best, the Netherlands), was compared with the upgraded X-ray system, CIQ (AlluraClarity FD20; Philips Healthcare). Procedure time, fluoroscopy time, and iodinated contrast dose were recorded. Patient radiation dose reduction in the EVAR group, in median AK, was 56% (ALX = 1,262.5 mGy; CIQ = 556.0 mGy [p X-ray imaging technology in the hybrid OR suite resulted in a significant reduction of patient and staff radiation dose without affecting procedure length, fluoroscopy time, or use of contrast. Copyright © 2015 European Society for Vascular Surgery. Published by Elsevier Ltd. All rights reserved.

  6. Development of Space Life Supporting System Using Radiation Technology (Top Brand Project)

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Ju Woon; Kim, Jae Hun; Song, Beom Seok; Choi, Jong Il; Yoon, Yo Han; Park, Jin Kyu; Park, Jae Nam; Han, In Jun; Lee, Yoon Jong [KAERI, Daejeon (Korea, Republic of)

    2010-08-15

    To simulate the space environment of microgravity and expose to space radiation, Hindlimb Suspension Model was established in Gamma Phytotron. Hindlimb suspended group exposed to irradiation, non-suspended group not exposed to irradiation, and non-suspended group exposed to irradiation were experimented for 2 weeks at the dose rate of 3.2 mSV/day. The results showed that muscle weight was decreased by suspension. To develop the countermeasure to physiological changes in space environment, the peptides from soy beam was selected to evaluate the effect with the space environment simulation model. Suing the microscopic and fluorescent images, the growth of microorganisms were detected. The species were identified based on primer-targeted gene sequence analysis. Also, the radiation resistance of species was defined. To research on sustainable nutritional supply and improvement of human physiology in space environment, four kinds of new Korean space foods (Bulgogi, Bibimbap, Seaweed soup, and Mulberry beverage) were developed using the irradiation technology and certified as space foods by the Russian Institute of Biomedical Problems. The contract on joint research of MARS-500 between KAERI and IBMP was made. In the experiment, crews for expedition to Mars will eat Korean space foods (Bulgogi, Bibimbap, Seaweed soup, Mulberry beverage, Kimchi, Sujeonggwa) for 120 days, then their immunity will be examined and compared with it on the ground. The developed technology and know-how could be spun out to the various fields, such as aircraft, automobile, military, information and communication, bio technologies. Moreover, the results obtained from this research can be used for the further development for military use or special food area such as foods for patient

  7. Product assurance technology for procuring reliable, radiation-hard, custom LSI/VLSI electronics

    Science.gov (United States)

    Buehler, M. G.; Allen, R. A.; Blaes, B. R.; Hicks, K. A.; Jennings, G. A.; Lin, Y.-S.; Pina, C. A.; Sayah, H. R.; Zamani, N.

    1989-01-01

    Advanced measurement methods using microelectronic test chips are described. These chips are intended to be used in acquiring the data needed to qualify Application Specific Integrated Circuits (ASIC's) for space use. Efforts were focused on developing the technology for obtaining custom IC's from CMOS/bulk silicon foundries. A series of test chips were developed: a parametric test strip, a fault chip, a set of reliability chips, and the CRRES (Combined Release and Radiation Effects Satellite) chip, a test circuit for monitoring space radiation effects. The technical accomplishments of the effort include: (1) development of a fault chip that contains a set of test structures used to evaluate the density of various process-induced defects; (2) development of new test structures and testing techniques for measuring gate-oxide capacitance, gate-overlap capacitance, and propagation delay; (3) development of a set of reliability chips that are used to evaluate failure mechanisms in CMOS/bulk: interconnect and contact electromigration and time-dependent dielectric breakdown; (4) development of MOSFET parameter extraction procedures for evaluating subthreshold characteristics; (5) evaluation of test chips and test strips on the second CRRES wafer run; (6) two dedicated fabrication runs for the CRRES chip flight parts; and (7) publication of two papers: one on the split-cross bridge resistor and another on asymmetrical SRAM (static random access memory) cells for single-event upset analysis.

  8. Radiation technology facilities operating at the italian ENEA-Casaccia research center

    Energy Technology Data Exchange (ETDEWEB)

    Tata, A.; Festinesi, A.; Rosa, R. [ENEA, Centro Ricerche Casaccia, Rome (Italy). Dipt. Innovazione

    1998-04-01

    The ENEA Casaccia Research Center, 20 km far from Rome, is the main Italian technological research Center, with more than 2000 scientists involved in several advanced research fields (materials, energy, environment, etc.). Within the frame of radiation technology, three main facilities are in service at full power at the Casaccia research Center: a 1 MW TRIGA Mark II reactor (RC-1); a 5 kW fast source reactor (TAPIRO); a 3.7 x 10{sup 15} Bq Cobalt-60 irradiation plant (CALLIOPE). Main R-D programmes carried out regard medical radioisotopes and radio trackers production, neutron radiography, neutron activation analysis, radiation damage analysis, neutron diffractometry, foodstuffs treatment, crosslinking processes, wastes (hazardous, chemical, hospital) processing. The paper provides a features description of utilized facilities and reports main present carried out projects. [Italiano] Il Centro Ricerca ENEA della casaccia, situato a 20 km circa da Roma, e` il maggiore centro di ricerca tecnologica italiano, con oltre 2000 ricercatori impegnati in numerosi campi di ricerca avanzata (materiali, energia, ambiente, etc.). Nell`ambito delle tecnologie di irraggiamento, sono presenti e pienamente funzionanti presso il C.R. Casaccia tre principali impianti: un reattore termico TRIGA mark II da 1 MW (RC-1); un reattore-sorgente veloce da 5 kW (TAPIRO); un impianto di irraggiamento a Cobalto-60 da 3.7. x 10{sup 15} Bq (CALLIOPE). I principali programmi R-D condotti riguardano la produzione di radioisotopi e radiotraccianti di utilizzo in campo medico, la radiografia neutronica, l`analisi per attivazione neutronica, l`analisi del danno da radiazioni, la diffrattometria neutronica, il trattamento di derrate alimentari, i processi di reticolazione polimerica, il trattamento di rifiuti (tossico-nocivi, chimici, ospedaliri). Il presente lavoro fornisce una descrizione tecnica degli impianti, nonche` indicazioni sui principali programmo condotti attualmente presso tali impienti.

  9. Salvage cryotherapy with third-generation technology for locally recurrent prostate cancer after radiation therapy.

    Science.gov (United States)

    Lian, Huibo; Yang, Rong; Lin, Tingsheng; Wang, Wei; Zhang, Gutian; Guo, Hongqian

    2016-09-01

    To present the intermediate results of the use of third-generation cryotherapy as salvage treatment for locally recurrent prostate cancer after radiation therapy. From January 2006 to July 2010, 32 patients with locally recurrent prostate cancer after radiotherapy underwent salvage cryoablation using third-generation technology. Biochemical recurrence-free survival (BRFS) was defined as the time period from salvage treatment to the date of biochemical recurrence (Phoenix definition of nadir +2 ng/ml). Complications were classified as grades 1-5 according to the modified Clavien system. Multivariate logistic regression analysis was performed to identify potential risk factors associated with recurrence after salvage cryotherapy. The median follow-up was 63 months (range 38-92). Mild complications (grades 1 and 2) included mild incontinence (9.4 %), acute rectal pain (31.3 %), hematuria (6.3 %), scrotal edema (9.4 %), urinary tract infection (3.1 %), lower urinary tract symptoms (15.6 %) and erectile dysfunction (57.1 %). Severe events (grade 3) included severe incontinence (3.1 %) and urethral sloughing (3.1 %). The rate of rectourethral fistula and urinary retention was absent. The 5-year overall survival was 92.3 %. The 5-year cancer-specific survival was 100 %. The 5-year BRFS rate using the Phoenix definition was 43.5 %. A multivariate analysis disclosed that PSA at cryoablation was the only predictive factor for biochemical recurrence. Salvage cryotherapy using third-generation technology offers a safe and effective alternative for locally recurrent prostate cancer after radiation therapy. Additional studies with longer follow-up are necessary to determine the sustained efficacy of this procedure.

  10. Instrumentation for beam radiation and luminosity measurement in the CMS experiment using novel detector technologies

    Science.gov (United States)

    Guthoff, Moritz; CMS Collaboration

    2017-02-01

    The higher energy and luminosity of the LHC initiated the development of dedicated technologies for radiation monitoring and luminosity measurement. A dedicated pixelated luminosity detector measures coincidences in several three-layer telescopes of silicon pixel detectors to arrive at a luminosity for each colliding LHC bunch pair. In addition, charged particle tracking allows to monitor the location of the collision point. The upgraded fast beam conditions monitor measures the particle flux using 24 two-pad single crystalline diamond sensors, equipped with a fast front-end ASIC produced in 130 nm CMOS technology. The excellent time resolution is used to separate collision products from machine induced background. A new beam-halo monitor at larger radius exploits Cherenkov light produced by relativistic charged particles in fuzed quartz crystals to provide direction sensitivity and time resolution to separate incoming and outgoing particles. The back-end electronics of the beam monitoring systems includes dedicated modules with high bandwidth digitizers developed in both VME and microTCA standards for per bunch beam measurements and gain monitoring. All new and upgraded sub-detectors have been taking data from the first day of LHC operation in April 2015. Results on their commissioning and essential characteristics using data since the start-up of LHC will be presented.

  11. How gamma radiation processing systems are benefiting from the latest advances in information technology

    Science.gov (United States)

    Gibson, Wayne H.; Levesque, Daniel

    2000-03-01

    This paper discusses how gamma irradiation plants are putting the latest advances in computer and information technology to use for better process control, cost savings, and strategic advantages. Some irradiator operations are gaining significant benefits by integrating computer technology and robotics with real-time information processing, multi-user databases, and communication networks. The paper reports on several irradiation facilities that are making good use of client/server LANs, user-friendly graphics interfaces, supervisory control and data acquisition (SCADA) systems, distributed I/O with real-time sensor devices, trending analysis, real-time product tracking, dynamic product scheduling, and automated dosimetry reading. These plants are lowering costs by fast and reliable reconciliation of dosimetry data, easier validation to GMP requirements, optimizing production flow, and faster release of sterilized products to market. There is a trend in the manufacturing sector towards total automation using "predictive process control". Real-time verification of process parameters "on-the-run" allows control parameters to be adjusted appropriately, before the process strays out of limits. Applying this technology to the gamma radiation process, control will be based on monitoring the key parameters such as time, and making adjustments during the process to optimize quality and throughput. Dosimetry results will be used as a quality control measurement rather than as a final monitor for the release of the product. Results are correlated with the irradiation process data to quickly and confidently reconcile variations. Ultimately, a parametric process control system utilizing responsive control, feedback and verification will not only increase productivity and process efficiency, but can also result in operating within tighter dose control set points.

  12. PSYCHIATRIC DISORDERS AND SLEEP

    Science.gov (United States)

    Krystal, Andrew D.

    2012-01-01

    SYNOPSIS Psychiatric disorders and sleep are related in important ways. In contrast to the longstanding view of this relationship which viewed sleep problems as symptoms of psychiatric disorders, there is growing experimental evidence that the relationship between psychiatric disorders and sleep is complex and includes bi-directional causation. In this article we provide the evidence that supports this point of view, reviewing the data on the sleep disturbances seen in patients with psychiatric disorders but also reviewing the data on the impact of sleep disturbances on psychiatric conditions. Although much has been learned about the psychiatric disorders-sleep relationship, additional research is needed to better understand these relationships. This work promises to improve our ability to understand both of these phenomena and to allow us to better treat the many patients with sleep disorders and with psychiatric disorders. PMID:23099143

  13. The development of advanced robotic technology - Development of radiation sensor for detecting 2 dimensional radiation level distribution

    Energy Technology Data Exchange (ETDEWEB)

    Kang, Hee Dong [Kyungpook National University, Taegu (Korea, Republic of); Kim, Do Sung [Taegu University, Taegu (Korea, Republic of); Woo, Hong [Kyungsan University, Kyungsan (Korea, Republic of)

    1996-07-01

    We developed CsI(Tl) scintillation counter which is able to use in high radiation level field. Specially it will be combine to robot system, so we studied that system is to be small size and light weight. we had study characteristics of the developed system. And we confirmed the possibility as a detection system. 23 refs., 7 tabs., 34 figs., 10 ills. (author)

  14. Minimizing exposure to radiation in invasive cardiology using modern dose-reduction technology: evaluation of the real-life effects.

    Science.gov (United States)

    Faroux, Laurent; Blanpain, Thierry; Nazeyrollas, Pierre; Tassan-Mangina, Sophie; Herce, Benoît; Tourneux, Christophe; Metz, Damien

    2017-09-01

    We aimed to measure the reduction in the estimated dose of radiation received by patients that can be achieved using dose-reduction technology (ClarityIQ, Philips Healthcare, The Netherlands), among all patients undergoing invasive cardiology procedures. Medical procedures remain the primary source of exposure to ionizing radiation in the general population. The study population comprised all patients (without exclusion criteria) undergoing invasive coronary procedures over a 1-year study period in a large referral centre equipped with two catheterization laboratories (cathlabs). Both cathlabs (A and B) were equipped with the Allura Xper FD10 imaging system (Philips Healthcare, The Netherlands), but only Cathlab B was equipped with ClarityIQ technology. The primary endpoint was the estimated total dose of radiation received by the patient, as assessed by Air Kerma (AK) and dose area product (DAP). In total, 2095 invasive coronary procedures were analyzed. The patients who underwent procedures in Cathlab B received an average estimated dose that was 23% (AK) and 43% (DAP) lower than the dose received by patients undergoing procedures in Cathlab A (P age. In our study, the ClarityIQ technology reduced the estimated radiation dose received by patients by 23-43%, according to the method of measurement. © 2017 Wiley Periodicals, Inc.

  15. Radiation dosimetry

    CERN Document Server

    Hine, Gerald J; Hine, Gerald J

    1956-01-01

    Radiation Dosimetry focuses on the advancements, processes, technologies, techniques, and principles involved in radiation dosimetry, including counters and calibration and standardization techniques. The selection first offers information on radiation units and the theory of ionization dosimetry and interaction of radiation with matter. Topics include quantities derivable from roentgens, determination of dose in roentgens, ionization dosimetry of high-energy photons and corpuscular radiations, and heavy charged particles. The text then examines the biological and medical effects of radiation,

  16. A demonstrator analog signal processing circuit in a radiation hard SOI-CMOS technology

    CERN Document Server

    Anghinolfi, Francis; Campbell, M; Heijne, Erik H M; Jarron, Pierre; Meddeler, G; CERN. Geneva. Detector Research and Development Committee

    1990-01-01

    It is proposed to develop a demonstrator integrated circuit for particle detector analog signal processing using the advanced 1.2 micron HSOI3-HD Silicon-on-Insulator (SOI) CMOS radiation hard technology of Thomson-TMS, which has recently become accessible for selected civilian applications. The characteristics announced for this process promise survivability after a total dose in excess of 10 Mrad (SiO2) and 10**14 to 10**15 n/cm2, which is probably satisfactory for applications in LHC detector systems. The properties of such a SOI process look promising, in particular regarding speed. In view of the special analog requirements in the particle physics environment,one should verify the analog characteristics before and after irradiation by producing a demonstrator signal processing circuit which incorporates the most vital functional blocks. This demonstrator would consist of a low noise front-end amplifier, a comparator and an analog pipeline element with associated logic, following the scheme of the Hierarc...

  17. A large dynamic range radiation tolerant analog memory in a quarter micron CMOS technology

    CERN Document Server

    Anelli, G; Rivetti, A

    2000-01-01

    A 8*128 cell analog memory prototype has been designed in a commercial 0.25 jam CMOS process. The aim of this work was to investigate the possibility of designing large dynamic range mixed- mode switched capacitor circuits for High-Energy Physics (HEP) applications in deep submicron CMOS technologies. Special layout techniques have been used to make the circuit radiation tolerant left bracket 1 right bracket . The memory cells employ gate-oxide capacitors for storage, allowing for a very high density. A voltage write - voltage read architecture has been chosen to minimize the sensitivity to absolute capacitor values. The measured input voltage range is 2.3 V (V//D//D = 2.5 V), with a linearity of at least 7.5 bits over 2 V. The dynamic range is more than 11 bits. The pedestal variation is plus or minus 0.5 mV peak-to-peak. The noise measured, which is dominated by the noise of the measurement setup, is around 0.8 mV rms. The characteristics of the memory have been measured before irradiation and after lOMrd (...

  18. A large dynamic range radiation-tolerant analog memory in a quarter- micron CMOS technology

    CERN Document Server

    Anelli, G; Rivetti, A

    2001-01-01

    An analog memory prototype containing 8*128 cells has been designed in a commercial quarter-micron CMOS process. The aim of this work is to investigate the possibility of designing large dynamic range mixed-mode switched capacitor circuits for high-energy physics (HEP) applications in deep submicron CMOS technologies. Special layout techniques have been used to make the circuit radiation tolerant. The memory cells employ gate-oxide capacitors for storage, permitting a very high density. A voltage write-voltage read architecture has been chosen to minimize the sensitivity to absolute capacitor values. The measured input voltage range is 2.3 V (the power supply voltage V/sub DD/ is equal to 2.5 V), with a linearity of almost 8 bits over 2 V. The dynamic range is more than 11 bits. The pedestal variation is +or-0.5 mV peak-to-peak. The noise measured, which is dominated by the noise of the measurement setup, is around 0.8 mV rms. The characteristics of the memory have been measured before irradiation and after 1...

  19. Coatings manufactured using magnetron sputtering technology to protect against infrared radiation for use in firefighter helmets

    Directory of Open Access Journals (Sweden)

    Fejdyś Marzena

    2016-09-01

    Full Text Available The aim of this study was to test the usefulness of magnetron sputtering technology to produce coatings on selected elements of a firefighter’s helmet to protect against infrared radiation (PN-EN 171 standard. The scope of research includes testing the deposition produced via magnetron sputtering of metallic and ceramic coatings on plastics, which are used to manufacture the components comprising the personal protection equipment used by firefighters. The UV-VIS, NIR used to research the permeation coefficients and reflections for light and infrared light and the emission spectrometry with ICP-AES used for the quantitative analysis of elements in metallic and ceramic coatings. Microstructural and micro-analytical testing of the coatings were performed using scanning electron microscopy (SEM. Measurements of the chemical compositions were conducted using energy-dispersive X-ray spectroscopy (EDS. The hardnesss of the coatings were tested using a indentation method, and the coating thicknesses were tested using a ellipsometry method.

  20. Contribution of modern medical imaging technology to radiation health effects in exposed populations

    Energy Technology Data Exchange (ETDEWEB)

    Fabrikant, J.I,

    1980-11-01

    The introduction of technically-advanced imaging systems in medicine carries with it potential health hazards, particularly from ionizing and nonionizing radiation exposure of human populations. This paper will discuss what we know and what we do not know about the health effects of low-level radiation, how the risks of radiation-induced health effects may be estimated, the sources of the scientific data, the dose-response models used, the uncertainties which limit precision of estimation of excess health risks from low-level radiation, and what the implications might be for radiation protection in medicine and public health policy.

  1. Exploration Technology Developments Program's Radiation Hardened Electronics for Space Environments (RHESE) Project Overview

    Science.gov (United States)

    Keys, Andrew S.; Adams, James H.; Darty, Ronald C.; Patrick, Marshall C.; Johnson, Michael A.; Cressler, John D.

    2008-01-01

    Primary Objective: 1) A computational tool to accurately predict electronics performance in the presence of space radiation in support of spacecraft design: a) Total dose; b) Single Event Effects; and c) Mean Time Between Failure. (Developed as successor to CR ME96.) Secondary Objectives: 2) To provide a detailed description of the natural radiation environment in support of radiation health and instrument design: a) In deep space; b) Inside the magnetosphere; and c) Behind shielding.

  2. Development of technology for biological dosimetry -A study on the radiation and environmental safety-

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Kang Suk; Cheon, Ki Jeong; Kim, Kook Chan; Kim, Jin Kyu; Kim, Sang Bok; Kim, In Kyu; Park, Hyo Kook [Korea Atomic Energy Res. Inst., Taejon (Korea, Republic of)

    1994-07-01

    {alpha}-amylase showed a significant increase in its activity when exposed to radiation of 0.1 Gy. However it had no relationship with radiation dose. Enzyme activities in liver tissue showed similar changes to those in serum. Among others, changes in acid phosphatase activity were highly related to radiation dose. Of acute phase proteins in serum, CRP, ceruloplasmin and haptoglobin positively responded to radiation while albumin did negatively. ELISA proved to be an efficient method to detect changes in serum protein level. Finally the measurements of changes in APRs using ELISA could provide an useful tools for biological dosimetry. (Author).

  3. Layout techniques to enhance the radiation tolerance of standard CMOS technologies demonstrated on a pixel detector readout chip

    Energy Technology Data Exchange (ETDEWEB)

    Snoeys, W. E-mail: walter.snoeys@cern.ch; Faccio, F.; Burns, M.; Campbell, M.; Cantatore, E.; Carrer, N.; Casagrande, L.; Cavagnoli, A.; Dachs, C.; Di Liberto, S.; Formenti, F.; Giraldo, A.; Heijne, E.H.M.; Jarron, P.; Letheren, M.; Marchioro, A.; Martinengo, P.; Meddi, F.; Mikulec, B.; Morando, M.; Morel, M.; Noah, E.; Paccagnella, A.; Ropotar, I.; Saladino, S.; Sansen, W.; Santopietro, F.; Scarlassara, F.; Segato, G.F.; Signe, P.M.; Soramel, F.; Vannucci, L.; Vleugels, K

    2000-01-11

    A new pixel readout prototype has been developed at CERN for high-energy physics applications. This full mixed mode circuit has been implemented in a commercial 0.5 {mu}m CMOS technology. Its radiation tolerance has been enhanced by designing all NMOS transistors in enclosed geometry and introducing guardrings wherever necessary. The technique is explained and its effectiveness demonstrated on various irradiation measurements on individual transistors and on the prototype. Circuit performance started to degrade only after a total dose of 600 krad-1.7 Mrad depending on the type of radiation. 10 keV X-rays, {sup 60}Co gamma-rays, 6.5 MeV protons, and minimum ionizing particles were used. Implications of this layout approach on the circuit design and perspectives for even deeper submicron technologies are discussed.charged-.

  4. Psychiatric services in Algeria.

    Science.gov (United States)

    Benmebarek, Zoubir

    2017-02-01

    The paper describes the current provision of psychiatric services in Algeria - in particular, in-patient and out-patient facilities, child psychiatry and human resources. Education, training, associations and research in the field of mental health are also briefly presented. The challenges that must dealt with to improve psychiatric care and to comply with international standards are listed, by way of conclusion.

  5. Psychiatric disorders and pregnancy

    Directory of Open Access Journals (Sweden)

    "SH. Akhondzadeh

    2006-07-01

    Full Text Available Psychiatric disorders are common in women during their childbearing years. Special considerations are needed when psychotic disorders present during pregnancy. Early identification and treatment of psychiatric disorders in pregnancy can prevent morbidity in pregnancy and in postpartum with the concomitant risks to mother and baby. Nevertheless, diagnosis of psychiatric illnesses during pregnancy is made more difficult by the overlap between symptoms of the disorders and symptoms of pregnancy. In majority of cases both psychotherapy and pharmacotherapy should be considered. However, psychiatric disorders in pregnancy are often under treated because of concerns about potential harmful effects of medication. This paper reviews findings about the presentation and course of major psychiatric disorders during pregnancy.

  6. Primary Psychiatric Diseases

    Directory of Open Access Journals (Sweden)

    Sibel Mercan

    2010-07-01

    Full Text Available The etiology of these dermatological diseases is entirely psychiatric origin. These patients show overconcern to their skin or self inflicted dermatoses unconsciously instead of facing with their real problems. In this group, delusions, dermatitis artefacta, trichotillomania, body dysmorphic disorder can be seen. They use denial as defence mechanism to their real psychiatric problems and prefer to apply dermatology instead of psychiatry. Dermatologist should be very careful before asking psychiatric consultation. Denial mechanism help patients to overcome agressive impulses like suicide or prevent further psychiatric damage like psychosis. Dermatologist should see these patients with short and frequent intervals with a good empathic approach. This will help to progress a powerful patient doctor relationship which will lead to a psychiatric evaluation.

  7. Perinatal psychiatric episodes

    DEFF Research Database (Denmark)

    Munk-Olsen, Trine; Maegbaek, M L; Johannsen, B M

    2016-01-01

    and childbirth, which suggests differences in the underlying etiology. We further speculate varying treatment incidence and prevalence in pregnancy vs postpartum may indicate that the current Diagnostic and Statistical Manual of Mental Disorders-5 peripartum specifier not adequately describes at-risk periods......Perinatal psychiatric episodes comprise various disorders and symptom severity, which are diagnosed and treated in multiple treatment settings. To date, no studies have quantified the incidence and prevalence of perinatal psychiatric episodes treated in primary and secondary care, which we aimed...... psychiatric facilities, 2.5 births were followed by an episode treated at outpatient psychiatric facility and 12 births by GP-provided pharmacological treatment. We interpret our results the following way: treated severe and moderate psychiatric disorders have different risk patterns in relation to pregnancy...

  8. Oxytocin and Psychiatric Disorders

    Directory of Open Access Journals (Sweden)

    Gokce Nur Say

    2016-06-01

    Full Text Available Oxytocin is a neuropeptide that plays critical role in mother-infant bonding, pair bonding and prosocial behaviors. Several neuropsychiatric disorders such as autism, schizophrenia, affective disorders, anxiety disorders, attention deficit/hyperactivity disorder, alcohol/substance addiction, aggression, suicide, eating disorders and personality disorders show abnormalities of oxytocin system. These findings have given rise to the studies searching therapeutic use of oxytocin for psychi-atric disorders. The studies of oxytocin interventions in psychiatric disorders yielded potentially promising findings. This paper reviews the role of oxytocin in emotions, behavior and its effects in psychiatric disorders. [Psikiyatride Guncel Yaklasimlar - Current Approaches in Psychiatry 2016; 8(2: 102-113

  9. Psychiatric genetics in South Africa: cutting a rough diamond ...

    African Journals Online (AJOL)

    Psychiatric disorders place a considerable healthcare burden on South African society. Incorporating genetic technologies into future treatment plans offers a potential mechanism to reduce this burden. This review focuses on psychiatric genetic research that has been performed in South African populations with regards to ...

  10. Electrodynamic Dust Shield Technology for Thermal Radiators Used in Lunar Exploration

    Science.gov (United States)

    Calle, Carlos I.; Hogue, Michael D.; Snyder, Sarah J.; Clements, Sidney J.; Johansen, Michael R.; Chen, Albert

    2011-01-01

    Two general types of thermal radiators are being considered for lunar missions: coated metallic surfaces and Second Surface Mirrors. Metallic surfaces are coated with a specially formulated white paint that withstands the space environment and adheres well to aluminium, the most common metal used in space hardware. AZ-93 White Thermal Control Paint, developed for the space program, is an electrically conductive inorganic coating that offers thermal control for spacecraft. It is currently in use on satellite surfaces (Fig 1). This paint withstands exposure to atomic oxygen, charged particle radiation, and vacuum ultraviolet radiation form 118 nm to 170 nm while reflecting 84 to 85% of the incident solar radiation and emitting 89-93% of the internal heat generated inside the spacecraft.

  11. Radiation Evaluation and Concept Development for Analog Probability Processing Technology Project

    Data.gov (United States)

    National Aeronautics and Space Administration — We will perform lab bench evaluations using Analog Devices Lyric Labs evaluation hardware as well as the NASA/GSFC Radiation Effects and Analysis Group...

  12. Design of compact system with wide electron beam for radiation technologies

    CERN Document Server

    Korolyov, A N; Pirozhenko, Vitaly M

    2001-01-01

    Design of a compact system for radiation processing of products and materials has been developed. The system provides two modes of irradiation, i.e. irradiation of continuously moving tapes and fixed samples. The irradiation is performed in a hermetically sealed chamber filled by nitrogen. This ecologically pure system includes the radiation protection,autonomous water cooling system and automated PC-control. It can be placed in any production or clinical room.

  13. Evaluating a radiation monitor for mixed-field environments based on SRAM technology

    CERN Document Server

    Tsiligiannis, G; Bosio, A; Girard, P; Pravossoudovitch, S; Todri, A; Virazel, A; Mekki, J; Brugger, M; Wrobel, F; Saigne, F

    2014-01-01

    Instruments operating in particle accelerators and colliders are exposed to radiations that are composed of particles of different types and energies. Several of these instruments often embed devices that are not hardened against radiation effects. Thus, there is a strong need for mon- itoring the levels of radiation inside the mixed-field radiation areas, throughout different positions. Different metrics exist for measuring the radiation damage induced to electronic devices, such as the Total Ionizing Dose (TID), the Displacement Damage (DD) and of course the fluence of parti- cles for estimating the error rates of the electronic devices among other applications. In this paper, we propose an SRAM based monitor, that is used to define the fluence of High Energy Hadrons (HEH) by detecting Single Event Upsets in the memory array. We evaluated the device by testing it inside the H4IRRAD area of CERN, a test area that reproduces the radiation conditions inside the Large Hadron Collider (LHC) tunnel and its shield...

  14. Assessment of the Technologies for Molecular Biodosimetry for Human Low-Dose Radiation Exposure Symposium: Agenda and Abstracts

    Energy Technology Data Exchange (ETDEWEB)

    Coleman, Matthew A. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Ramakrishnan, Narayani [National Inst. of Allergy and Infectious Diseases, Bethesda, MD (United States)

    2009-11-16

    In the event of a radiological accident, the rapid evaluation of the individual absorbed dose is paramount to discriminate those individuals who must receive medical attention. New research with genomic- and proteomic-wide tools is showing that within minutes to hours after exposure to ionizing radiation the cellular machinery is modified. For example: large-scale changes occur in the gene expression profiles involving a broad variety of cellular pathways after a wide range of both low dose (<10 cGy) and high dose (>10 cGy) ionizing radiation exposures. Symposium 12 was organized to address a wide range of biological effects using the latest technologies. To address current models following ionizing radiation exposure, methods in biodosimetry and dose effects the symposia featured a general overview titled “Model Systems and Current Approaches in Biodosimetry” by Matthew A. Coleman, from Lawrence Livermore National Laboratory and a talk entitled “Brief Overview of Biodosimetry Projects in the NIH Rad/Nuc Program” by Dr. Narayani Ramakrishnan, National Institute of Allergy and Infectious Diseases. These two talk set the tone for issues in data and model integration as well as addressing the national need for robust technologies for biological dosimetry. The report continues with more description of the presentations, along with the agenda and abstracts of the papers presented.

  15. Comprehensive Psychiatric Evaluation

    Science.gov (United States)

    ... Guide - Table of Contents Facts For Families Guide - View by Topic Chinese Facts for Families Guide ... Psychiatric Evaluation No. 52; Updated October 2017 Evaluation by a child and adolescent psychiatrist is appropriate for any child or adolescent ...

  16. Culture and Psychiatric Diagnosis

    OpenAIRE

    Lewis-Fernández, Roberto; Aggarwal, Neil Krishan

    2013-01-01

    Since the publication of DSM-IV in 1994, a number of components related to psychiatric diagnosis have come under criticism for their inaccuracies and inadequacies. Neurobiologists and anthropologists have particularly criticized the rigidity of DSM-IV diagnostic criteria that appear to exclude whole classes of alternate illness presentations as well as the lack of attention in contemporary psychiatric nosology to the role of contextual factors in the emergence and characteristics of psychopat...

  17. Hyperthyroidism and psychiatric morbidity

    DEFF Research Database (Denmark)

    Brandt, Frans; Thvilum, Marianne; Pedersen, Dorthe Almind

    2014-01-01

    Thyroid hormones are essential for the normal development of the fetal brain, while hyperthyroidism in adults is associated with mood symptoms and reduced quality of life. We aimed to investigate the association and temporal relation between hyperthyroidism and psychiatric morbidity.......Thyroid hormones are essential for the normal development of the fetal brain, while hyperthyroidism in adults is associated with mood symptoms and reduced quality of life. We aimed to investigate the association and temporal relation between hyperthyroidism and psychiatric morbidity....

  18. High-temperature electron irradiation and radiation-thermal technology for utilization, purification and production of some metals

    CERN Document Server

    Solovetskii, Y; Lunin, V

    1998-01-01

    High-temperature irradiation by the beam of 1.2-1.6 MeV accelerated electrons has been used for production Pt, Pd, Mo, Co, Cu and Ni from desactivated Pt(Pd)-containing reforming catalysts, molybdenum sulfide hydrodesulphurization catalysts and hydrogenation catalyst waste material. The radiation-induced decomposition of supported Ni(Co)-Mo/Al sub 2 O sub 3 sulfide catalyst and organic fragments of hydrogenation catalyst wastes has been studied. Radiolysis product distributions are shown as function of time (time up to 1,0 h) and temperature (570-1400K). There was made a principle scheme of the first technological unit for radiation-thermal utilization, purification and production of some metals from solid wastes material.

  19. Ultra High Fluence Radiation Monitoring Technology for the Future Circular Collider at CERN

    CERN Document Server

    Gorine, Georgi; Mandic, Igor; Jazbec, Anže; Snoj, Luka; Capeans, Mar; Moll, Michael; Bouvet, Didier; Ravotti, Federico; Sallese, Jean-Michel

    2018-01-01

    The Future Circular Collider (FCC) is foreseen as the next generation ~100 km long synchrotron to be built in the Geneva area starting 2050. This machine is expected to reach an energy level of 100 TeV generating unprecedented radiation levels >100 times higher than in today`s Large Hadron Collider (LHC). Current Radiation Monitoring system, like the RADMONs employed in the LHC, will not be capable to function and withstand this harsh environment. The development of a new Ultra High Fluence and Dose Radiation Sensor is a key element to allow irradiation tests of FCC equipment and, at a later stage, to monitor radiation levels in the FCC itself. In this paper, we present an innovative dosimetry solution based on thin layers of metals, which resistivity is shown to increase significantly due to the accumulated displacement damage. After describing the fabrication techniques used to manufacture these Radiation Dependent Resistors (RDR), we show and discuss the results of the irradiation experiments carried out ...

  20. Screening of new substances for radiation protection and technology development of efficacy improvement

    Energy Technology Data Exchange (ETDEWEB)

    Yoo, Byung Sun; Park, Sun Young; Jang, Eun Jung [Kyonggi University, Suwon (Korea, Republic of)

    2005-03-15

    To evaluate the radioprotective efficacy of candidate compounds, we examined the effects of selenium compounds, melatonin, and propolis on the colony forming efficiency (CFE) of gamma-irradiated CHO cells. - Protective effects of selenium compounds against radiation-induced cytotoxicity Sodium selenite showed protective effects at low concentrations against radiation-induced toxicity in CHO cells, whereas its effects were weak at higher concentrations. Selenomethionine also reduced the radiation-induced cytotoxicity. Both of these compounds showed highest protective effects at the concentration of 1 uM. - Protective effects of melatonin against radiation-induced cytotoxicity Melatonin showed the protective effects against radiation-induced cytotoxicity, and the protection was highest at 1 mM concentration. - Protective effects of selenium compounds against hydrogen peroxide-induced cytotoxicity Propolis showed dose-dependent inhibition of hydrogen peroxide-induced cytotoxicity. In particular, the highest inhibition was observed when propolis were treated at 0.3 and 1 ng/ml 24h prior to the hydrogen peroxide treatment. The protective effects of propolis was observed only when it was pretreated at least 8 hours before hydrogen peroxide treatment.

  1. Patient radiation dose reduction using an X-ray imaging noise reduction technology for cardiac angiography and intervention.

    Science.gov (United States)

    Nakamura, Shigeru; Kobayashi, Tomoko; Funatsu, Atsushi; Okada, Tadahisa; Mauti, Maria; Waizumi, Yuki; Yamada, Shinichi

    2016-05-01

    Coronary angiography and intervention can expose patients to high radiation dose. This retrospective study quantifies the patient dose reduction due to the introduction of a novel X-ray imaging noise reduction technology using advanced real-time image noise reduction algorithms and optimized acquisition chain for fluoroscopy and exposure in interventional cardiology. Patient, procedure and radiation dose data were retrospectively collected in the period August 2012-August 2013 for 883 patients treated with the image noise reduction technology (referred as "new system"). The same data were collected for 1083 patients in the period April 2011-July 2012 with a system using state-of-the-art image processing and reference acquisition chain (referred as "reference system"). Procedures were divided into diagnostic (CAG) and intervention (PCI). Acquisition parameters such as fluoroscopy time, volume of contrast medium, number of exposure images and number of stored fluoroscopy images were collected to classify procedure complexity. The procedural dose reduction was investigated separately for three main cardiologists. The new system provides significant dose reduction compared to the reference system. Median DAP values decreased for all procedures (p X-ray imaging technology combining advanced real-time image noise reduction algorithms and anatomy-specific optimized fluoroscopy and cine acquisition chain provides 66 % patient dose reduction in interventional cardiology.

  2. Radiation-hard Active Pixel Sensors for HL-LHC Detector Upgrades based on HV-CMOS Technology

    CERN Document Server

    Miucci, A; Hemperek, T.; Hügging, F.; Krüger, H.; Obermann, T.; Wermes, N.; Garcia-Sciveres, M.; Backhaus, M.; Capeans, M.; Feigl, S.; Nessi, M.; Pernegger, H.; Ristic, B.; Gonzalez-Sevilla, S.; Ferrere, D.; Iacobucci, G.; Rosa, A.La; Muenstermann, D.; George, M.; Grosse-Knetter, J.; Quadt, A.; Rieger, J.; Weingarten, J.; Bates, R.; Blue, A.; Buttar, C.; Hynds, D.; Kreidl, C.; Peric, I.; Breugnon, P.; Pangaud, P.; Godiot-Basolo, S.; Fougeron, D.; Bompard, F.; Clemens, J.C.; Liu, J; Barbero, M.; Rozanov, A

    2014-01-01

    Luminosity upgrades are discussed for the LHC (HL-LHC) which would make updates to the detectors necessary, requiring in particular new, even more radiation-hard and granular, sensors for the inner detector region. 1Corresponding author. c CERN 2014, published under the terms of the Creative Commons Attribution 3.0 License by IOP Publishing Ltd and Sissa Medialab srl. Any further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation and DOI. doi:10.1088/1748-0221/9/05/C050642014 JINST 9 C05064 A proposal for the next generation of inner detectors is based on HV-CMOS: a new family of silicon sensors based on commercial high-voltage CMOS technology, which enables the fabrication of part of the pixel electronics inside the silicon substrate itself. The main advantages of this technology with respect to the standard silicon sensor technology are: low material budget, fast charge collection time, high radiation tolerance, low cost and operation a...

  3. Psychiatric disorders and sleep issues.

    Science.gov (United States)

    Sutton, Eliza L

    2014-09-01

    Sleep issues are common in people with psychiatric disorders, and the interaction is complex. Sleep disorders, particularly insomnia, can precede and predispose to psychiatric disorders, can be comorbid with and exacerbate psychiatric disorders, and can occur as part of psychiatric disorders. Sleep disorders can mimic psychiatric disorders or result from medication given for psychiatric disorders. Impairment of sleep and of mental health may be different manifestations of the same underlying neurobiological processes. For the primary care physician, key tools include recognition of potential sleep effects of psychiatric medications and familiarity with treatment approaches for insomnia in depression and anxiety. Copyright © 2014 Elsevier Inc. All rights reserved.

  4. Impact of rocket propulsion technology on the radiation risk in missions to Mars

    Energy Technology Data Exchange (ETDEWEB)

    Durante, M. [GSI Helmholtzzentrum fur Schwerionenforschung, Biophysics Department, Darmstadt (Germany); Technical University of Darmstadt, Department of Condensed Matter Physics, Darmstadt (Germany); Bruno, C. [Dipartimento di Meccanica e Aeronautica, Universita -La Sapienza-, Roma (Italy)

    2010-10-15

    Exposure to cosmic radiation is today acknowledged as a major obstacle to human missions to Mars. In fact, in addition to the poor knowledge on the late effects of heavy ions in the cosmic rays, simple countermeasures are apparently not available. Shielding is indeed very problematic in space, because of mass problems and the high-energy of the cosmic rays, and radio-protective drugs or dietary supplements are not effective. However, the simplest countermeasure for reducing radiation risk is to shorten the duration time, particularly the transit time to Mars, where the dose rate is higher than on the planet surface. Here we show that using nuclear electric propulsion (NEP) rockets, the transit time could be substantially reduced to a point where radiation risk could be considered acceptable even with the current uncertainty on late effects. (authors)

  5. Ultra-low radiation dose during electrophysiology procedures using optimized new generation fluoroscopy technology.

    Science.gov (United States)

    Crowhurst, James; Haqqani, Haris; Wright, Daniel; Whitby, Mark; Lee, Adam; Betts, John; Denman, Russell

    2017-08-01

    Electrophysiology procedures require fluoroscopic guidance, with the associated potentially adverse effects of ionizing radiation. Newer fluoroscopy systems have more features that enable dose-reduction strategies. This study aimed to investigate any reduction in radiation dose between an older fluoroscopy system (Philips Integris H5000, Philips Healthcare, Einhoven, Netherlands) and one of the latest systems (Siemens Artis Q, Siemens Healthcare, Erlangen, Germany), optimized with dose-reduction strategies. Radiation dose measures were collected over a 2-year period in a single electrophysiology laboratory. Procedures were separated into seven groups: devices, biventricular devices, electrophysiology studies, standard radiofrequency ablation, complex atrial ablation, ablation for ventricular arrhythmias, and pulmonary vein isolation. In the first year, an older fluoroscopy system was used, and in the second year, a new system, with dose reduction strategies. Comparisons were also made to the literature with regard to radiation dose levels. Patient characteristics, fluoroscopy times, number of digital acquisitions, procedural times, and procedural success were largely similar between the old and new system across procedure groups. Overall dose area product (DAP) was reduced by 91% (5.0 [2.0-17.0] to 0.45 [0.16-2.61] Gycm2 [P > 0.001]) with the new system and was lower across all groups. DAP readings with the new system are some of the lowest published in the literature in all groups. An optimized contemporary digital fluoroscopy system, with low radiation dose configuration and continued good procedural practice, can result in ultra-low radiation levels for all electrophysiology procedures, without compromising procedural time or procedural success. © 2017 Commonwealth of Australia. Pacing and Clinical Electrophysiology © 2017 Wiley Periodicals, Inc.

  6. Radiation tolerant VLSI circuits in standard deep submicron CMOS technologies for the LHC experiments practical design aspects

    CERN Document Server

    Anelli, G; Delmastro, M; Faccio, F; Floria, S; Giraldo, A; Heijne, Erik H M; Jarron, Pierre; Kloukinas, Kostas C; Marchioro, A; Moreira, P; Snoeys, W

    1999-01-01

    We discuss design issues related to the extensive use of Enclosed Layout Transistors (ELT's) and guard rings in deep submicron CMOS technologies in order to improve radiation tolerance of ASIC's designed for the LHC experiments (the Large Hadron Collider at present under construction at CERN). We present novel aspects related to the use of ELT's: noise measured before and after irradiation up to 100 Mrad (SiO/sub 2/), a model to calculate the W/L ratio and matching properties of these devices. Some conclusions concerning the density and the speed of IC's conceived with this design approach are finally drawn. (16 refs).

  7. Thermal instability theory analysis of multifaceted asymmetric radiation from the edge (MARFE) in Tokamak Experiment for Technology Oriented Research (TEXTOR)

    Energy Technology Data Exchange (ETDEWEB)

    Kelly, F. A.; Stacey, W. M.; Rapp, J.; Brix, M.

    2001-07-01

    The density limits for a series of shots in TEXTOR [Tokamak Experiment for Technology Oriented Research, E. Hintz, P. Bogen, H. A. Claa{ss}en , in Contributions to High-Temperature Plasma Physics, edited by K. H. Spatschek and J. Uhlenbusch (Akademie Verlag, Berlin, 1994, p. 373)], over a range of heating powers, that ended in multifaceted asymmetric radiation from the edge (MARFE) have been analyzed within the context of thermal instability theory. The prediction of MARFE onset agrees with observation to within the experimental uncertainty.

  8. Nuclear materials control technology in the post-cold war world: Radiation-based methods and information management systems

    Energy Technology Data Exchange (ETDEWEB)

    Tape, J.W.; Eccleston, G.W.; Ensslin, N.; Markin, J.T.

    1993-06-01

    The end of the cold war is providing both opportunities and requirements for improving the control of nuclear materials around the world. The dismantlement of nuclear weapons and the growth of nuclear power, including the use of plutonium in light water reactors and breeder reactor programs, coupled with enhanced proliferation concerns, drive the need for improved nuclear materials control. We describe nuclear materials control and the role of technology in making controls more effective and efficient. The current use and anticipated development in selected radiation-based methods and related information management systems am described briefly.

  9. Electromagnetic Fields, Pulsed Radiofrequency Radiation, and Epigenetics: How Wireless Technologies May Affect Childhood Development

    Science.gov (United States)

    Sage, Cindy; Burgio, Ernesto

    2018-01-01

    Mobile phones and other wireless devices that produce electromagnetic fields (EMF) and pulsed radiofrequency radiation (RFR) are widely documented to cause potentially harmful health impacts that can be detrimental to young people. New epigenetic studies are profiled in this review to account for some neurodevelopmental and neurobehavioral changes…

  10. Neutron radiation therapy: application of advanced technology to the treatment of cancer

    CERN Document Server

    Maughan, R L; Kota, C; Burmeister, J; Porter, A T; Forman, J D; Blosser, H G; Blosser, E; Blosser, G

    1999-01-01

    The design and construction of a unique superconducting cyclotron for use in fast neutron radiation therapy is described. The clinical results obtained in the treatment of adenocarcinoma of the prostate with this accelerator are presented. Future use of the boron neutron capture reaction as a means of enhancing fast neutron therapy in the treatment of patients with brain tumors (glioblastoma multiforme) is also discussed.

  11. Development of Curricula for Nuclear Radiation Protection, Nuclear Instrumentation, and Nuclear Materials Processing Technologies. Final Report.

    Science.gov (United States)

    Hull, Daniel M.

    A study was conducted to assist two-year postsecondary educational institutions in providing technical specialty courses for preparing nuclear technicians. As a result of project activities, curricula have been developed for five categories of nuclear technicians and operators: (1) radiation protection technician, (2) nuclear instrumentation and…

  12. Investigation of advanced propulsion technologies: The RAM accelerator and the flowing gas radiation heater

    Science.gov (United States)

    Bruckner, A. P.; Knowlen, C.; Mattick, A. T.; Hertzberg, A.

    1992-01-01

    The two principal areas of advanced propulsion investigated are the ram accelerator and the flowing gas radiation heater. The concept of the ram accelerator is presented as a hypervelocity launcher for large-scale aeroballistic range applications in hypersonics and aerothermodynamics research. The ram accelerator is an in-bore ramjet device in which a projectile shaped like the centerbody of a supersonic ramjet is propelled in a stationary tube filled with a tailored combustible gas mixture. Combustion on and behind the projectile generates thrust which accelerates it to very high velocities. The acceleration can be tailored for the 'soft launch' of instrumented models. The distinctive reacting flow phenomena that have been observed in the ram accelerator are relevant to the aerothermodynamic processes in airbreathing hypersonic propulsion systems and are useful for validating sophisticated CFD codes. The recently demonstrated scalability of the device and the ability to control the rate of acceleration offer unique opportunities for the use of the ram accelerator as a large-scale hypersonic ground test facility. The flowing gas radiation receiver is a novel concept for using solar energy to heat a working fluid for space power or propulsion. Focused solar radiation is absorbed directly in a working gas, rather than by heat transfer through a solid surface. Previous theoretical analysis had demonstrated that radiation trapping reduces energy loss compared to that of blackbody receivers, and enables higher efficiencies and higher peak temperatures. An experiment was carried out to measure the temperature profile of an infrared-active gas and demonstrate the effect of radiation trapping. The success of this effort validates analytical models of heat transfer in this receiver, and confirms the potential of this approach for achieving high efficiency space power and propulsion.

  13. Technical report on the development of egg allergy vaccine using novel technology fused with radiation technology and biotechnology

    Energy Technology Data Exchange (ETDEWEB)

    Byun, Myung Woo; Lee, Ju Woon; Kim, Jae Hun

    2007-01-15

    Type I allergy has become increasingly prevalent over the past few decades. Current immunotherapy for allergic disease is effective in the treatment of respiratory allergies by administration of natural allergen extracts. Injection of food allergen extract can bring on high rate of adverse systemic reaction. Such traditional injection immunotherapy for food allergy is currently not recommended because of the allergic side effects of the therapy. Therefore, effective preventive and therapeutic strategies for food allergy are urgently needed. Allergenicity of allergen by a treatment of radiation were decreased and irradiated allergen was showed immunological change in vivo. Here this study presents an approach for vaccination of irradiated allergen to prevent allergic response and the feasibility for allergy treatment by modified allergen. Gamma irradiation of OVA caused a reduced humoral and cellular immune responses specific to the allergen OVA in preventive and therapeutic effects, and its related mechanisms were associated with down-regulation of OVA-specific T cell activation in preventive effect. From adoptive cell transfer experiment results. T cell of spleen cells is critical role in the suppressive effect of humoral and cellular response on OVA-induced allergy.

  14. Antiradiation Vaccine: Technology Development- Radiation Tolerance,Prophylaxis, Prevention And Treatment Of Clinical Presentation After Heavy Ion Irradiation.

    Science.gov (United States)

    Popov, Dmitri; Maliev, Slava; Jones, Jeffrey

    Introduction: Research in the field of biological effects of heavy charged particles is necessary for both heavy-ion therapy (hadrontherapy) and protection from the exposure to galactic cosmic radiation in long-term manned space missions.[Durante M. 2004] In future crew of long-term manned missions could operate in exremely high hadronic radiation areas of space and will not survive without effective radiation protection. An Antiradiation Vaccine (AV) must be an important part of a countermeasures regimen for efficient radiation protection purposes of austronauts-cosmonauts-taukonauts: immune-prophylaxis and immune-therapy of acute radiation toxic syndromes developed after heavy ion irradiation. New technology developed (AV) for the purposes of radiological protection and improvement of radiation tolerance and it is quite important to create protective immune active status which prevent toxic reactions inside a human body irradiated by high energy hadrons.[Maliev V. et al. 2006, Popov D. et al.2008]. High energy hadrons produce a variety of secondary particles which play an important role in the energy deposition process, and characterise their radiation qualities [Sato T. et al. 2003] Antiradiation Vaccine with specific immune-prophylaxis by an anti-radiation vaccine should be an important part of medical management for long term space missions. Methods and experiments: 1. Antiradiation vaccine preparation standard, mixture of toxoid form of Radiation Toxins [SRD-group] which include Cerebrovascular RT Neurotoxin, Cardiovascular RT Neurotoxin, Gastrointestinal RT Neurotoxin, Hematopoietic RT Hematotoxin. Radiation Toxins of Radiation Determinant Group isolated from the central lymph of gamma-irradiated animals with Cerebrovascular, Cardiovascular, Gastro-intestinal, Hematopoietic forms of ARS. Devices for radiation are "Panorama", "Puma". 2. Heavy ion exposure was accomplished at Department of Research Institute of Nuclear Physics, Dubna, Russia. The heavy ions

  15. Psychiatric Aspects of Infertility

    Directory of Open Access Journals (Sweden)

    Hacer Sezgin

    2014-06-01

    Full Text Available Infertility can be defined as a crisis with cultural, religious, and class related aspects, which coexists with medical, psychiatric, psychological, and social problems. Relation between psychiatric and psychological factors stem from a mutual interaction of both. Family is an important institution in maintaining human existence and raising individuals in line with society's expectations. Fertility and reproduction are seen as universal functions unique to women with raising children as the expected result of the family institution. Incidence of infertility has increased recently and can become a life crisis for a couple. Even though not being able to have a child affects both sexes emotionally, women feel greater amounts of stress, pressure, anxiety, and depression.Consequences of infertility arise from short and long-term devastating effects on both individual's physical and mental health, and marital system. Many studies focus on infertility related psychological and psychiatric disorders (depression, anxiety, grief, marital conflict, gender differences, relation between the causes of infertility and psychopathology, the effects of psychiatric evaluation and intervention -when necessaryon the course of infertility treatment, pregnancy rates, and childbirth. The most important underlying causes of high levels of stress and anxiety that infertile women experience are the loss of maternity, reproduction, sense of self, and genetic continuity. In this review article is to investigate the relationship between medically unexplained symptoms and psychiatric symptoms. [Psikiyatride Guncel Yaklasimlar - Current Approaches in Psychiatry 2014; 6(2.000: 165-185

  16. A qualitative study of factors influencing psychiatric nursing practice in Australian prisons.

    Science.gov (United States)

    Doyle, J

    1999-01-01

    Factors influencing the practice of psychiatric nursing in Australian prisons. A qualitative study of psychiatric nurses (N = 30) working in a prison. The psychiatric nurses identified the following factors as influencing their work: challenging patients, threats to personal survival of patients, the technology and artifice of confinement, conflicting values of nurses and corrections staff, stigma by association, and prisoner identification of the nurses with prison administration. Psychiatric nurses who work in forensic settings must adapt to less than optimal practice conditions.

  17. Use of GEANT4 programme package for radiation technological modeling problems

    CERN Document Server

    Bratchenko, M I

    2001-01-01

    The results of pilot computer experiments directed toward the application of Geant4 package for modeling of gamma radiation dose distributions in homogeneous phantoms are presented. we demonstrate the potential of the package it self and of the developed add-on software modules for the calculations of three-dimensional absorbed dose distributions taking into account the design and geometry of model irradiators and phantoms.

  18. Psychiatric patient and anaesthesia

    Directory of Open Access Journals (Sweden)

    Joginder Pal Attri

    2012-01-01

    Full Text Available Many patients with psychiatric illnesses are prescribed long-term drug treatment, and the anaesthesiologist must be aware of potential interactions with anaesthetic agents. Psychotropic drugs often given in combination with each other or with other non-psychiatric drugs generally exert profound effects on the central and peripheral neurotransmitter and ionic mechanisms. Hence, prior intake of these drugs is an important consideration in the management of the patient about to undergo anaesthesia and surgery. This article highlights the effects of anaesthetics on patients taking antipsychotics, tricyclic antidepressants, monoamine oxidase inhibitors and lithium carbonate. The risk that should be considered in the perioperative period are the extent of surgery, the patient′s physical state, anaesthesia, the direct and indirect effects of psychotropics, risk of withdrawal symptoms and risk of psychiatric recurrence and relapse.

  19. Development of Radiation-hard Bandgap Reference and Temperature Sensor in CMOS 130 nm Technology

    CERN Document Server

    Kuczynska, Marika; Bugiel, Szymon; Firlej, Miroslaw; Fiutowski, Tomasz; Idzik, Marek; Michelis, Stefano; Moron, Jakub; Przyborowski, Dominik; Swientek, Krzysztof

    2015-01-01

    A stable reference voltage (or current) source is a standard component of today's microelectronics systems. In particle physics experiments such reference is needed in spite of harsh ionizing radiation conditions, i.e. doses exceeding 100 Mrads and fluences above 1e15 n/cm2. After such radiation load a bandgap reference using standard p-n junction of bipolar transistor does not work properly. Instead of using standard p-n junctions, two enclosed layout transistor (ELTMOS) structures are used to create radiation-hard diodes: the ELT bulk diode and the diode obtained using the ELTMOS as dynamic threshold transistor (DTMOS). In this paper we have described several sub-1V references based on ELTMOS bulk diode and DTMOS based diode, using CMOS 130 nm process. Voltage references the structures with additional PTAT (Proportional To Absolute Temperature) output for temperature measurements were also designed. We present and compare post-layout simulations of the developed bandgap references and temperature sensors, w...

  20. Radiation Exposure Analyses Supporting the Development of Solar Particle Event Shielding Technologies

    Science.gov (United States)

    Walker, Steven A.; Clowdsley, Martha S.; Abston, H. Lee; Simon, Hatthew A.; Gallegos, Adam M.

    2013-01-01

    NASA has plans for long duration missions beyond low Earth orbit (LEO). Outside of LEO, large solar particle events (SPEs), which occur sporadically, can deliver a very large dose in a short amount of time. The relatively low proton energies make SPE shielding practical, and the possibility of the occurrence of a large event drives the need for SPE shielding for all deep space missions. The Advanced Exploration Systems (AES) RadWorks Storm Shelter Team was charged with developing minimal mass SPE storm shelter concepts for missions beyond LEO. The concepts developed included "wearable" shields, shelters that could be deployed at the onset of an event, and augmentations to the crew quarters. The radiation transport codes, human body models, and vehicle geometry tools contained in the On-Line Tool for the Assessment of Radiation In Space (OLTARIS) were used to evaluate the protection provided by each concept within a realistic space habitat and provide the concept designers with shield thickness requirements. Several different SPE models were utilized to examine the dependence of the shield requirements on the event spectrum. This paper describes the radiation analysis methods and the results of these analyses for several of the shielding concepts.

  1. A study on the radiation and environment safety -Development of technology for biological dosimetry-

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Kang Suk; Kim, Kook Chan; Kim, In Kyoo; Kim, Jin Kyoo; Chun Kee Jung; Park, Hyo Kook; Kim, Sang Bok; Park Sun Yung [Korea Atomic Energy Research Institute, Taejon (Korea, Republic of)

    1995-07-01

    Adult rats were treated a single, whole body exposure to a dose of 0.1, 0.5, 1.0, 2.0, 3.0 Gy. The animals were sacrificed 6, 24, 48, 72, 96 hours following exposure. The amount of serum acute phase proteins(haptoglobin, ceruloplasmin, C-reactive protein, alpha-1 antitrypsin, alpha-1 acid glycoprotein, transferrin) were measured by competitive ELISA. In the 0.1 Gy irradiated rats, serum haptoglobin, C-reactive protein and alpha-1 antitrypsin were 400% higher and serum transferrin was 50% lower as compared to controls, 96 hours after irradiation. Ceruloplasmin increased by 400%, 24 hours after irradiation, but 96 hours after irradiation, the concentration of this protein in rat returned to normal level. On the other hand, no changes were observed in the case of alpha-1 acid glycoprotein. In the group of the 3.0 Gy irradiated rats, transferrin increased by 200%, 96 hours after irradiation. These biochemical responses to radiation did not show dose-dependent relation, but the sensitivity of the indicators was high enough to detect absorbed dose of 0.1 Gy. The above results can be applied to the measurements of acute phase reactants in human serum for the assessment of exposure doses in radiation workers and patients under radiation therapy. 39 figs, 72 refs. (Author).

  2. Radiation and isotope technology for sustainable development and the role of the IAEA

    Energy Technology Data Exchange (ETDEWEB)

    Machi, S. [International Atomic Energy Agency (IAEA), Vienna (Austria)

    1997-10-01

    This paper illustrates developments in and prospects for the application of nuclear science technology in the fields of food and agriculture, industry and environmental protection, in connection with the IAEA`s activities

  3. A comprehensive psychiatric service

    DEFF Research Database (Denmark)

    Wang, A G

    1984-01-01

    A comprehensive psychiatric service was established in 1969 in the Faroe Islands. This service was created as a department of a general hospital. The spheres covered by this department, operating in the midst of the community were: acute and chronic patients, a liaison-psychiatric service......, and an outpatient service. The number of chronic patients has not decreased, due to an influx of unruly senile patients. The close proximity of the service to the community has increased the pressure with regard to the care of such patients. Other services, such as outpatient treatment of alcoholics and neurotics...

  4. A comprehensive psychiatric service

    DEFF Research Database (Denmark)

    Wang, A G

    1984-01-01

    , and an outpatient service. The number of chronic patients has not decreased, due to an influx of unruly senile patients. The close proximity of the service to the community has increased the pressure with regard to the care of such patients. Other services, such as outpatient treatment of alcoholics and neurotics......A comprehensive psychiatric service was established in 1969 in the Faroe Islands. This service was created as a department of a general hospital. The spheres covered by this department, operating in the midst of the community were: acute and chronic patients, a liaison-psychiatric service...

  5. Psychiatric impairment and

    African Journals Online (AJOL)

    2002-12-03

    Dec 3, 2002 ... Impairment and disability assessment on psychiatric grounds has always been subjective, controversial ... informed medical advisors doing their disability assessments. Many of these advisors have expressed ..... that will empower the affected employee and that is non- stigma- tising. In order to do so it is ...

  6. Aggression in Psychiatric Wards

    DEFF Research Database (Denmark)

    Hvidhjelm, Jacob; Sestoft, Dorte; Skovgaard, Lene Theil

    2016-01-01

    Health care workers are often exposed to violence and aggression in psychiatric settings. Short-term risk assessments, such as the Brøset Violence Checklist (BVC), are strong predictors of such aggression and may enable staff to take preventive measures against aggression. This study evaluated wh...

  7. Psychiatric genetics:AJP

    African Journals Online (AJOL)

    Pippa

    their caregivers in South Africa. The heritability of the majority of the psychiatric disorders is ... linkage analyses in a cohort of Bantu-speaking black South. Africans.17-22 Areas of implied linkage to schizophrenia ... one of the studies of a Bantu-speaking schizophrenia cohort. Table I. Glossary of genetic terminology. Allele.

  8. Cerebellum and psychiatric disorders

    OpenAIRE

    Baldaçara,Leonardo; Borgio,João Guilherme Fiorani; Lacerda,Acioly Luiz Tavares de; Jackowski,Andrea Parolin

    2008-01-01

    OBJECTIVE: The objective of this update article is to report structural and functional neuroimaging studies exploring the potential role of cerebellum in the pathophysiology of psychiatric disorders. METHOD: A non-systematic literature review was conducted by means of Medline using the following terms as a parameter: "cerebellum", "cerebellar vermis", "schizophrenia", "bipolar disorder", "depression", "anxiety disorders", "dementia" and "attention deficit hyperactivity disorder". The electron...

  9. Personal radiation detector at a high technology readiness level that satisfies DARPA's SN-13-47 and SIGMA program requirements

    Science.gov (United States)

    Ginzburg, D.; Knafo, Y.; Manor, A.; Seif, R.; Ghelman, M.; Ellenbogen, M.; Pushkarsky, V.; Ifergan, Y.; Semyonov, N.; Wengrowicz, U.; Mazor, T.; Kadmon, Y.; Cohen, Y.; Osovizky, A.

    2015-06-01

    There is a need to develop new personal radiation detector (PRD) technologies that can be mass produced. On August 2013, DARPA released a request for information (RFI) seeking innovative radiation detection technologies. In addition, on December 2013, a Broad Agency Announcement (BAA) for the SIGMA program was released. The RFI requirements focused on a sensor that should possess three main properties: low cost, high compactness and radioisotope identification capabilities. The identification performances should facilitate the detection of a hidden threat, ranging from special nuclear materials (SNM) to commonly used radiological sources. Subsequently, the BAA presented the specific requirements at an instrument level and provided a comparison between the current market status (state-of-the-art) and the SIGMA program objectives. This work presents an optional alternative for both the detection technology (sensor with communication output and without user interface) for DARPA's initial RFI and for the PRD required by the SIGMA program. A broad discussion is dedicated to the method proposed to fulfill the program objectives and to the selected alternative that is based on the PDS-GO design and technology. The PDS-GO is the first commercially available PRD that is based on a scintillation crystal optically coupled with a silicon photomultiplier (SiPM), a solid-state light sensor. This work presents the current performance of the instrument and possible future upgrades based on recent technological improvements in the SiPM design. The approach of utilizing the SiPM with a commonly available CsI(Tl) crystal is the key for achieving the program objectives. This approach provides the appropriate performance, low cost, mass production and small dimensions; however, it requires a creative approach to overcome the obstacles of the solid-state detector dark current (noise) and gain stabilization over a wide temperature range. Based on the presented results, we presume that

  10. Release effect of the active ingredients using a radiation cross linking technology

    Energy Technology Data Exchange (ETDEWEB)

    Hwang, Seung Hyun; Ahn, Sung Jun; Park, Jong Seok; Jeong, Sung In; Gwon, Hui Jeong; Lim, Youn Mook [Research Division for Industry and Environment, Korea Atomic Energy Research Institute, Jeongeup (Korea, Republic of); Lee, Dong Yun [Dept. of Bioengineering, Division of Applied Chemical and Bio Engineering, Hanyang University, Seoul (Korea, Republic of)

    2015-12-15

    Typical radiation cross-linked hydrogels has the characteristic that high water content, but low emission efficiency of active ingredients. Therefore, the hydrogel was prepared by the addition to collagen, which is closely related to the formation of skin wrinkles in biocompatibility and highly water-soluble carboxymethyl cellulose sodium salt (CMC) in order to preparation of hydrogels has excellent emission efficiency of active ingredients. Hydrogels were prepared by dissolving CMC and collagen each of 0.5%, 10% concentration in deionized water. Then, prepared hydrogels are performed by gamma-radiation at 1, 3, 5 kGy irradiation dose. The results showed that the gel fraction of after irradiated 3 kGy hydrogel was higher than before irradiated gelation as long as the 55.3%. The swelling rate of irradiated 3 kGy hydrogel was lower than the non-irradiated sample. The compressive strength of 3 kGy irradiated hydrogel was the highest. The visco-elastic did not show any significant differences, even after irradiation. The CMC hydrogel in this study suggested a potential use as a material for the mask pack for improved emission efficiency of the active ingredient and anti-wrinkles.

  11. [Development of transient pyrometer based on multi-spectral radiation technology].

    Science.gov (United States)

    Zhai, Yang; Shen, Hua; Zhu, Ri-hong; Ma, Suo-dong; Li, Jian-xin; Chen, Lei; Gu, Jin-liang

    2010-11-01

    In modern dynamics system, the radiant temperature of the flame, which caused by the transient plasma stimulated by high-energy-level electromagnetism field, takes an important role in the description of the flying object's status as well as cauterization of the trajectory. Due to its extremely high temperature and transient process, the radiant temperature of the flame can hardly be measured through contracted ways, either static ways such as traditional pyrophotometer or CCD arrays. In the present paper, the authors bring forward a novel pyrophotometer based on classical theory of Planck's law (blackbody radiation law) and multi-channel spectrums radiation method. With this new type pyrophotometer, any spectrum can be selected out from the wavelength of 300 to 860 nm within 2 ns. Also, the application of high-definition diffraction grating and fibers can'ensure the accuracy of selected spectrum. The results through a serial of experiments by using this theory as well as high-speed photodetector indicate that this method is valid and accurate for the measurement of the object's surface's radiant temperature.

  12. Development of technology for obtaining multi-component hard and superhard alloys based on Ti, Si, W and others using ionizing radiation

    OpenAIRE

    A. Kupchishin; E. Shmygalev; T. Shmygaleva; Zhaksyntay Kairbekov

    2012-01-01

    Complex researches on creation of scientific bases of receiving new and perspective firm and superfirm materials with use of bunches of particles are carried out. Bases of radiating technology of receiving multicomponent firm and superfirm alloys on the basis of Ti, by Si, W, etc., high-energy bunches of ions, electrons, thermoinfluence and the microwave oven are developed. Works on search and a choice of modes radiating and the microwave oven of processing of powders, components of polymers ...

  13. Data mining in psychiatric research.

    Science.gov (United States)

    Tovar, Diego; Cornejo, Eduardo; Xanthopoulos, Petros; Guarracino, Mario R; Pardalos, Panos M

    2012-01-01

    Mathematical sciences and computational methods have found new applications in fields like medicine over the last few decades. Modern data acquisition and data analysis protocols have been of great assistance to medical researchers and clinical scientists. Especially in psychiatry, technology and science have made new computational methods available to assist the development of predictive modeling and to identify diseases more accurately. Data mining (or knowledge discovery) aims to extract information from large datasets and solve challenging tasks, like patient assessment, early mental disease diagnosis, and drug efficacy assessment. Accurate and fast data analysis methods are very important, especially when dealing with severe psychiatric diseases like schizophrenia. In this paper, we focus on computational methods related to data analysis and more specifically to data mining. Then, we discuss some related research in the field of psychiatry.

  14. SU-F-E-14: Global Radiation Oncology Education and Training in Medical Physics Powered by Information and Communication Technologies

    Energy Technology Data Exchange (ETDEWEB)

    Ngwa, W [Harvard Medical School, Boston, MA (United States); University Massachusetts Lowell, Lowell, MA (United States); Sajo, E [University Massachusetts Lowell, Lowell, MA (United States); Ngoma, T [Muhimbili University of Health and Allied Sciences, Dar Es Salaam, TA (Tanzania, United Republic of); Dachi, J; Julius Mwaiselage, J [Ocean Road Cancer Institute, Dar Es Salaam (Tanzania, United Republic of); Kenton, O [University of Pennsylvania, Philadelphia, Pennsylvania (United States); Avery, S [University of Pennsylvania, Sicklerville, NJ (United States)

    2016-06-15

    Purpose: Recent publications have highlighted the potential of Information and Communication Technologies (ICTs) to catalyze collaborations in cancer care, research and education in global radiation oncology. This work reports on the use of ICTs for global Medical Physics education and training across three countries: USA, Tanzania and Kuwait Methods: An online education platform was established by Radiation Oncology Faculty from Harvard Medical School, and the University of Pennsylvania with integrated Medical Physics Course modules accessible to trainees in Tanzania via partnership with the Muhimbili University of Health and Allied Sciences, and the Ocean Road Cancer Institute. The course modules incorporated lectures covering Radiation Therapy Physics with videos, discussion board, assessments and grade center. Faculty at Harvard Medical School and the University of Massachusetts Lowell also employed weekly Skype meetings to train/mentor three graduate students, living out-of-state and in Kuwait for up to 9 research credits per semester for over two semesters towards obtaining their graduate degrees Results: Students were able to successfully access the Medical Physics course modules and participate in learning activities, online discussion boards, and assessments. Other instructors could also access/co-teach the course modules from USA and Tanzania. Meanwhile all three graduate students with remote training via Skype and email made major progress in their graduate training with each one of them submitting their research results as abstracts to be presented at the 2016 AAPM conference. One student has also published her work already and all three are developing these abstracts for publication in peer-reviewed journals. Conclusion: Altogether, this work highlights concrete examples/model on how ICTs can be used for capacity building in Medical Physics across continents, for both education and research training needed for Masters/PhD degrees. The developed modules

  15. High-Speed, Radiation-Tolerant Laser Drivers in 0.13 μm CMOS Technology for HEP Applications

    Science.gov (United States)

    Mazza, Giovanni; Tavernier, Filip; Moreira, Paulo; Calvo, Daniela; De Remigis, Paolo; Olantera, Lauri; Soos, Csaba; Troska, Jan; Wyllie, Ken

    2014-12-01

    The gigabit laser driver (GBLD) and low-power GBLD (LpGBLD) are two radiation-tolerant laser drivers designed to drive laser diodes at data rates up to 4.8 Gb/s. They have been designed in the framework of the gigabit-transceiver (GBT) and versatile-link projects to provide fast optical links capable of operation in the radiation environment of future high-luminosity high-energy physics experiments. The GBLD provides laser bias and modulation currents up to 43 mA and 24 mA, respectively. It can thus be used to drive vertical cavity surface emitting laser (VCSEL) and edge-emitting laser diodes. A pre-emphasis circuit, which can provide up to 12 mA in 70 ps pulses, has also been implemented to compensate for high external capacitive loads. The current driving capabilities of the LpGBLD are 2 times smaller that those of the GBLD as it has been optimized to drive VCSELs in order to minimize the power consumption. Both application-specific integrated circuits are designed in 0.13 μm commercial complementary metal-oxide semiconductor technology and are powered by a single 2.5 V supply. The power consumption of the core circuit is 89 mW for the GBLD and 55 mW for the LpGBLD.

  16. Development of radiation protection technology for application of the retired steam generator, Kori Unit no. 1

    Energy Technology Data Exchange (ETDEWEB)

    Kim, J. H.; Jang, D. C.; Song, K. S.; Lee, S. J.; Ahn, C. S.; Kim, D. H.; Im, Y. K.; Kim, H. D. [Hanil Nuclear Co., Ltd., Anyang (Korea, Republic of)

    2005-04-15

    It is a field study to develop and verify maintenance technologies such as verification and technology development of ECT (Eddy current test) using failure, heat tube excavation and field pressure test regarding the utilization of retired steam generator using 2 units of Retired Steam Generator in Kori 1 that was replaced for the first time in Korea in 1998. Since May, 2003, our team has investigated Retired Steam Generator which was stored in Radioactive waste warehouse in Korea Hydro and Nuclear Power Kori unit no.1 Branch, in order to study natural fault ECT signal acquisition, maintenance technology verification, small tubes/samples abstraction. A temporal task zone was made focusing on 'Man Way at the bottom of Chamber 'A'.' The purpose of the study is to establish Radiological Protection and Radioactive Waste Treatment Plan by setting ALARA (As Low As Reasonably Achievable) goal systematically, which is the basic concept of Radiological Protection and reduction in exposure of radiological workers to radioactive materials with proper Radiological Protection countermeasures according to the changes in radioactivity, to prevent expansion from contamination and to manage 'Radioactive Waste Reduction Activities' effectively.

  17. Radiation Chemistry

    Science.gov (United States)

    Wojnárovits, L.

    Ionizing radiation causes chemical changes in the molecules of the interacting medium. The initial molecules change to new molecules, resulting in changes of the physical, chemical, and eventually biological properties of the material. For instance, water decomposes to its elements H2 and O2. In polymers, degradation and crosslinking take place. In biopolymers, e.g., DNS strand breaks and other alterations occur. Such changes are to be avoided in some cases (radiation protection), however, in other cases they are used for technological purposes (radiation processing). This chapter introduces radiation chemistry by discussing the sources of ionizing radiation (radionuclide sources, machine sources), absorption of radiation energy, techniques used in radiation chemistry research, and methods of absorbed energy (absorbed dose) measurements. Radiation chemistry of different classes of inorganic (water and aqueous solutions, inorganic solids, ionic liquids (ILs)) and organic substances (hydrocarbons, halogenated compounds, polymers, and biomolecules) is discussed in concise form together with theoretical and experimental backgrounds. An essential part of the chapter is the introduction of radiation processing technologies in the fields of polymer chemistry, food processing, and sterilization. The application of radiation chemistry to nuclear technology and to protection of environment (flue gas treatment, wastewater treatment) is also discussed.

  18. [Rheumatic fibromyalgia: psychiatric features].

    Science.gov (United States)

    Sarró Alvarez, S

    2002-01-01

    Rheumatic fibromyalgia, also known as fibrositis or myofascial pain, is a common syndrome whose diagnoses, founded mainly on physical examination, usually delays due to symptom unspecificity, amount of complementary tests requested and intercourse with psychiatric disorders. Psychyatrists and psychologists get often involved in fibromyalgia treatment. Its proper knowledge prevents not only physicians and patients' psychological discourage but also development of depression and mental health expenses, as well as allows designing a treatment plan according to the main symptoms which may offer improvement chances to fibromyalgia patients. This article intends to offer an up-to-date and complete information about this entity, focused on psychiatric aspects, to better identify and manage such a puzzling disease.

  19. The technology of electromagnetic radiation danger estimation using the hardware-software module

    Directory of Open Access Journals (Sweden)

    Titov Eugene

    2017-01-01

    Full Text Available The article describes the principles of functioning of the hardware-software module, whose purpose is the estimation of a danger level of the combined electromagnetic field influence on a human organism. The module consists of the hardware and the software parts. The hardware part is an array of electromagnetic parameter detectors; the software part is an electromagnetic field modelling program based on OpenEMS. The module creates so-called images of electromagnetic environment danger. The results show practical applicability of the technological module for the stated purpose.

  20. Performance improvement of pentacosa-diynoic acid label dosimeter for radiation processing technology

    Science.gov (United States)

    Abdel-Fattah, A. A.; Soliman, Y. S.

    2017-12-01

    A radiation sensitive material, 10,12-pentacosa-diynoic acid (PCDA), was incorporated into polyvinyl butyral (PVB) films to develop indicators/dosimeters for blood and food irradiation. The present study aims to improve the dosimetric performance of these previously prepared dosimeters and to extend their shelf life by the combination of a radical scavenger, propyl gallate (PG), and a UV absorber, tinuvin-p (TP). The X-ray diffraction (XRD) patterns of the dosimeters were analysed and their dosimetric characteristics were investigated by specular reflectance in the visible spectrum range of 400-700 nm. Upon irradiation, the films turn blue exhibiting two main bands around 670 and 620 nm. Their dose-response functions were fitted by a double exponential growth, 5 parameters, equation. Irradiation temperature influences the dosimeter response at 670 nm without causing thermochromic transition up to 50 °C in poly-PCDA. The useful dose range is 5-4000 Gy depending on the wavelengths of analysis and PCDA content in the films. The overall uncertainty of dose measurement is less than 6% at 2σ.

  1. Solar dynamic heat rejection technology. Task 2: Heat pipe radiator development

    Science.gov (United States)

    League, Mark; Alario, Joe

    1988-05-01

    This report covers the design, fabrication, and test of several dual slot heat pipe engineering development units. The following dual-slot heat pipes were fabricated and tested: two 6-ft. aluminum heat pipes; a 20-ft. aluminum heat pipe; and a 20-ft. aluminum heat pipe with a four-leg evaporator section. The test results of all four test articles are presented and compared to the performance predicted by the design software. Test results from the four-leg article are incomplete. The methodology for fabricating stainless steel dual slot heat pipes was also studied by performing a tool life test with different single point cutters, and these results are also presented. Although the dual-slot heat pipe has demonstrated the potential to meet the requirements for a high capacity radiator system, uncertainties with the design still exist. The startup difficulties with the aluminum test articles must be solved, and a stainless steel/methanol heat pipe should be built and tested.

  2. Culture and psychiatric diagnosis.

    Science.gov (United States)

    Lewis-Fernández, Roberto; Aggarwal, Neil Krishan

    2013-01-01

    Since the publication of DSM-IV in 1994, neurobiologists and anthropologists have criticized the rigidity of its diagnostic criteria that appear to exclude whole classes of alternate illness presentations, as well as the lack of attention in contemporary psychiatric nosology to the role of contextual factors in the emergence and characteristics of psychopathology. Experts in culture and mental health have responded to these criticisms by revising the very process of diagnosis for DSM-5. Specifically, the DSM-5 Cultural Issues Subgroup has recommended that concepts of culture be included more prominently in several areas: an introductory chapter on Cultural Aspects of Psychiatric Diagnosis - composed of a conceptual introduction, a revised Outline for Cultural Formulation, a Cultural Formulation Interview that operationalizes this Outline, and a glossary on cultural concepts of distress - as well as material directly related to culture that is incorporated into the description of each disorder. This chapter surveys these recommendations to demonstrate how culture and context interact with psychiatric diagnosis at multiple levels. A greater appreciation of the interplay between culture, context, and biology can help clinicians improve diagnostic and treatment planning. Copyright © 2013 APA*

  3. The texture quantitative analysis of the normal mammary parenchyma and in breast lesions: acoustic radiation force impulse (ARFI) technology.

    Science.gov (United States)

    Li, Y; Liu, C; Geng, J; Zheng, X; Chen, B; Lu, Z; Wang, X

    2014-01-01

    The purpose of this work is to investigate the feasibility of acoustic radiation force impulse (ARFI) technology in the normal mammary parenchyma and in breast lesions. The virtual touch tissue quantification (VTQ) value was measured on a total of 150 cases in the normal mammary parenchyma and a total of 69 cases in breast lesions (19 cases of nodules, 28 cases of fibroadenoma, and 22 cases of cancer). Then the statistic analysis was carried out on the VTQ value combined with mammographic density, ages, menstrual stages, and pathological result. The VTQ value of mammary parenchyma rose with the increase of the mammographic density, and the value of VTQ had statistical differences in the comparison of group C with group B and in the comparison of group D with group C. The comparison of the VTQ value of the mammary parenchyma in patients with breast cancer and the nodule had statistical difference. The comparison of the VTQ value of the mammary parenchyma in patients with breast cancer, and the fibroadenoma had statistical difference. The value ofVTQ in masses gradually increased in the groups of nodule, fibroadenoma, and breast cancer. There was significant difference in the comparison of VTQ value of the nodule group and the fibroadenoma group with breast cancer group respectively. ARFI-VTQ technology has some reference value in assessing mammographic density. ARFI-VTQ can be used as the quantitative indicater for differentially diagnosing the breast lesions.

  4. A scintillation testing technology at a viewpoint of optical test. At a memory of winning of the Radiation Prize (Prize of Encouragement)

    Energy Technology Data Exchange (ETDEWEB)

    Maekawa, Tatsuyuki [Toshiba Corp., Kawasaki, Kanagawa (Japan)

    2000-04-01

    In a 'summer school' held at Matsushima, a series of developmental results had been introduced on a wavelength shift type beta-ray detector and others recently progressed by author at a viewpoint of 'new reconsideration on scintillation testing, one of the oldest radiation testing technology for an optical testing'. As a chance to write this theme again was obtained at present, here were introduced on trial and errors, backgrounds on ideas, pains for trial production and so forth at a process of putting together them for actual technologies and products under combining a series of ideas with their needs. Here were newly introduced on developmental backgrounds, points for practicability, and so forth on optical radiation testing technology which had been developed by authors. By upgrading of radiation resistance on the optical fibers themselves, developments for not only radiation testing but also instrumentation in storage vessel specific to nuclear instrumentation are considered in future. And, some findings on new elements and techniques, such as application of radiation to refractive index change due to much minute exotherm, application of Cherenkov phenomenon in glass, fiber grating and interference test assembles a minute diffraction lattice into a core, and so forth are found recently, which will be expected for their future developments. (G.K.)

  5. Radiation protection aspects of established dismantling and decontamination technologies. Information and experiences from the decommissioning of nuclear facilities; Strahlenschutzaspekte gaengiger Abbau- und Dekontaminationstechniken. Informationen und Erfahrungen aus der Stilllegung kerntechnischer Anlagen

    Energy Technology Data Exchange (ETDEWEB)

    Kaulard, Joerg; Brendebach, Boris; Strub, Erik

    2010-12-15

    The report covers the following topics: the concept of an idealized dismantling technology selection process, examples on aspects of the dismantling strategy,features of dismantling and decontamination technologies in the frame of radiation protection aspects, examples of dismantling technologies based on the features of the German decommissioning practice (NPPs Greifswald, Wuergassen, Stade, Gundremmingen, research reactors Kahl, KNK and MZFR) experiences on radiation protection aspects with decontamination and dismantling technologies.

  6. [Forensic psychiatric patients in Denmark].

    Science.gov (United States)

    Larsen, Tina Gram; Valbak, Lone; Perto, Gurli; Reinert, Kjeld

    2006-06-05

    In Denmark the number of forensic psychiatric patients is increasing. The objective of this study was to explore whether the increased number of forensic psychiatric patients has been reflected in the use of psychiatric inpatient facilities. Furthermore, we wanted to investigate differences in the treatment of various diagnostic groups of forensic patients and of forensic and non-forensic patients with schizophrenia. Information about admissions and outpatient contact was extracted from the Danish Psychiatric Central Research Register for all Danish patients sentenced to psychiatric treatment in the period 1994-2003. Furthermore, a group of first-admission forensic patients suffering from schizophrenia was compared to a control group of first-admission non-forensic patients with schizophrenia, matched for sex, age and time of admission. The number of forensic psychiatric patients increased markedly in the period 1994-2003; at the same time, the use of inpatient facilities for this group of patients did not increase to a similar degree but actually decreased. Forensic patients in the group F20-F29 spent more time in hospital than did forensic patients with affective disorders and personality disorders. Forensic psychiatric patients with schizophrenia had significantly longer periods of hospitalization than did non-forensic patients with schizophrenia. Forensic psychiatric patients' use of psychiatric inpatient facilities during the last 10 years did not increase to the extent expected relative to the increasing number of forensic psychiatric patients. This raises the question of whether these patients are receiving necessary and sufficient treatment.

  7. The primordium of radiation technologies in medicine at Brazil; Os primordios das radiacoes na medicina no Brasil

    Energy Technology Data Exchange (ETDEWEB)

    Cuperschmid, Ethel M.; Campos, Tarcisio P.R. [Minas Gerais Univ., Belo Horizonte, MG (Brazil). Programa de Pos-graduacao em Ciencias e Tecnicas Nucleares]. E-mail: ethel@fafich.ufmg.br; campos@nuclear.ufmg.br

    2005-07-01

    The repeating of the experiments of Wilhelm Konrad Roentgen in Brazil happened thanks to the initiative of physician' from Rio de Janeiro and Minas Gerais. The present article, research fruit and documental rising from the archive of the Center of Memory of the Medicine (UFMG), it verified how the scientific innovations reached the Brazilian medical society. One year after X-ray's discovery (1895), Dr. Francisco Pereira das Neves got to repeat the German scientist's experiments. Based on imported material, as tube of Crookes, tube Hittorf, Ruhmkorff's inductor and plate Lumiere, the first X-ray for clinical medicine started in September of 1896. In Minas Gerais, the pioneer was Dr. Jose Carlos Ferreira Pires that, in 1898, brought the X-ray's took to the city of Formiga, being the first X-ray's device of South America. The distance of the great world scientific centers and the inherent difficulties the obtaining technical publications and foreigner supplies were not barriers. Everything was still for being understanding: the time of exposition, the correct way of the reading the foils, X rays effects in human. Until the decade of 1960 x-ray's use was predominantly for diagnosis ends, as they attest Brazilian medical publications. Therapeutic aspects of the radiation have been addressed as a focus in Brazil only after 1963. The present article intends to discuss the paper in the introduction of new radiation technologies and to punctuate the qualitative jumps heading for therapeutic use of the radioactivity in Brazil, aiming external influences, pioneering and improvisations. (author)

  8. [Psychiatric complications of abortion].

    Science.gov (United States)

    Gurpegui, Manuel; Jurado, Dolores

    2009-01-01

    The psychiatric consequences of induced abortion continue to be the object of controversy. The reactions of women when they became aware of conception are very variable. Pregnancy, whether initially intended or unintended, may provoke stress; and miscarriage may bring about feelings of loss and grief reaction. Therefore, induced abortion, with its emotional implications (of relief, shame and guilt) not surprisingly is a stressful adverse life event. METHODOLOGICAL CONSIDERATIONS: There is agreement among researchers on the need to compare the mental health outcomes (or the psychiatric complications) with appropriate groups, including women with unintended pregnancies ending in live births and women with miscarriages. There is also agreement on the need to control for the potential confounding effects of multiple variables: demographic, contextual, personal development, previous or current traumatic experiences, and mental health prior to the obstetric event. Any psychiatric outcome is multi-factorial in origin and the impact of life events depend on how they are perceived, the psychological defence mechanisms (unconscious to a great extent) and the coping style. The fact of voluntarily aborting has an undeniable ethical dimension in which facts and values are interwoven. No research study has found that induced abortion is associated with a better mental health outcome, although the results of some studies are interpreted as or Some general population studies point out significant associations with alcohol or illegal drug dependence, mood disorders (including depression) and some anxiety disorders. Some of these associations have been confirmed, and nuanced, by longitudinal prospective studies which support causal relationships. With the available data, it is advisable to devote efforts to the mental health care of women who have had an induced abortion. Reasons of the woman's mental health by no means can be invoked, on empirical bases, for inducing an abortion.

  9. Lamotrigine in psychiatric disorders.

    Science.gov (United States)

    Reid, Jennifer G; Gitlin, Michael J; Altshuler, Lori L

    2013-07-01

    Owing to the prevalence of medication side effects and treatment resistance, prescribers often consider off-label uses of US Food and Drug Administration (FDA)-approved agents for the treatment of persistent symptoms. The authors review the available literature on the FDA-approved and non-FDA-approved uses of lamotrigine in adults with psychiatric disorders. We used PubMed, MEDLINE, and a hand search of relevant literature to find studies published between 1990 and 2012 and available in English language. The following keywords were searched: lamotrigine, psychiatric, mood disorders, depression, personality disorders, anxiety, schizophrenia, side effects, and rash. Data were selected from 29 randomized controlled trials (RCTs). When RCTs were not available, open-label trials (6), retrospective case reviews (10), and case series (4) were summarized. We extracted results of monotherapy and augmentation trials of lamotrigine on primary and secondary outcome measures. Lamotrigine is generally well tolerated, with the best evidence for the maintenance treatment of bipolar disorder, particularly in prevention of depressive episodes. In acute bipolar depression, meta-analyses suggested a modest benefit, especially for more severely depressed subjects, with switch rates similar to placebo. In unipolar depression, double-blind RCTs noted benefit on subsets of symptoms and improved response in more severely depressed subjects. Data are limited but promising in borderline personality disorder. Use of lamotrigine in schizophrenia and anxiety disorders has little supportive evidence. Lamotrigine is recommended in bipolar maintenance when depression is prominent. It also has a role in treating acute bipolar depression and unipolar depression, though the latter warrants more research. Data are too limited in other psychiatric disorders to recommend its use at this time. © Copyright 2013 Physicians Postgraduate Press, Inc.

  10. Parricide: Psychiatric morbidity

    Directory of Open Access Journals (Sweden)

    Dunjić Bojana

    2008-01-01

    Full Text Available INTRODUCTION Parricide is defined as a murder of parents by their children; the patricide is murder of father, while matricide is murder of mother. This entity is classified as homicide, but it differs in the fact that victims are parents and the killers are their children. Mostly, it is associated with psychiatric morbidity. OBJECTIVE To describe sociodemographic and psychopathological characteristics of parricide committers and to analyze circumstances of parricide and psychiatric morbidity in order to achieve better recognition and prevention of risks. METHOD This retrospective study included all homicide autopsy records (1991-2005 performed at the Institute of Forensic Medicine, Medical School, University of Belgrade. For further analyses, all parricide records were selected out. The study analyzed all available parameters, which concerned parricide committers, victims and the act itself. Methods of descriptive statistics were used. RESULTS Between 1991 and 2005, there were 948 cases of homicide; of these, 3.5% were parricides. The committers of parricide were on average 31.2±11.9 years old, 87.8% were males, 60.6% with psychiatric symptoms most commonly with schizophrenia, alcohol dependence, personality disorder etc. Victims were on average 63.7±11.9 years old, 54.5% males, and 21.2% had a diagnosed mental illness. CONCLUSION Parricide is a rare kind of homicide accounting for 3% of all homicides. Committers are mostly unemployed males in early adulthood who have mental disorder. The phenomenon of parricide deserves a detailed analysis of the committer (individual bio-psycho-social profile and the environ- mental factors (family, closely related circumstances to enable a precise prediction of the act and prevention of the fatal outcome, which logically imposes the need of further studies.

  11. Psychiatric aspects of dwarfism.

    Science.gov (United States)

    Brust, J S; Ford, C V; Rimoin, D L

    1976-02-01

    Sixteen adult dwarfs - 11 with achondroplasia and 5 with hypopituitarism - were studied by means of psychiatric interviews and psychological tests. There were no significant differences between the two groups; in general, the subjects had achieved a satisfactory life adjustment despite the stress of having bodies uniquely different from those of the general population. They had secure identities as "little people" and successfully used coping mechanisms such as a sense of humor and a pleasant interpersonal style. Male dwarfs tended to experience more emotional distress than female dwarfs.

  12. Temporal evaluation of radiation detection system, used by the division of radiation protection of the Navy Technological Centre in Sao Paulo, Brazil

    Energy Technology Data Exchange (ETDEWEB)

    Gontijo, Rodrigo Modesto Gadelha; Acosta, Clarice de Freitas; Ikari, Andreza Iris R.; Ferreira, Marcio de Oliveira; Alves, Henrique da Silva; Duarte, Marcelo Antonio [Centro Tecnologico da Marinha em Sao Paulo (CTMSP), SP (Brazil)

    2011-07-01

    This work presents a temporal evaluation of the radiation detection system used by in division of radiation protection of the CTMSP, Sao Paulo, Brazil. About fifty efficiencies results of the system were compiled over the last two years for this purpose. Less than 1% of the standard deviation was found for both portable and fixed detectors, which indicates a significant stability of the detection system used in CTMSP over the period analyzed. (author)

  13. Cerebellum and psychiatric disorders.

    Science.gov (United States)

    Baldaçara, Leonardo; Borgio, João Guilherme Fiorani; Lacerda, Acioly Luiz Tavares de; Jackowski, Andrea Parolin

    2008-09-01

    The objective of this update article is to report structural and functional neuroimaging studies exploring the potential role of cerebellum in the pathophysiology of psychiatric disorders. A non-systematic literature review was conducted by means of Medline using the following terms as a parameter: "cerebellum", "cerebellar vermis", "schizophrenia", "bipolar disorder", "depression", "anxiety disorders", "dementia" and "attention deficit hyperactivity disorder". The electronic search was done up to April 2008. Structural and functional cerebellar abnormalities have been reported in many psychiatric disorders, namely schizophrenia, bipolar disorder, major depressive disorder, anxiety disorders, dementia and attention deficit hyperactivity disorder. Structural magnetic resonance imaging studies have reported smaller total cerebellar and vermal volumes in schizophrenia, mood disorders and attention deficit hyperactivity disorder. Functional magnetic resonance imaging studies using cognitive paradigms have shown alterations in cerebellar activity in schizophrenia, anxiety disorders and attention deficit hyperactivity disorder. In dementia, the cerebellum is affected in later stages of the disease. Contrasting with early theories, cerebellum appears to play a major role in different brain functions other than balance and motor control, including emotional regulation and cognition. Future studies are clearly needed to further elucidate the role of cerebellum in both normal and pathological behavior, mood regulation, and cognitive functioning.

  14. Ecological Momentary Assessment and Smartphone Application Intervention in Adolescents with Substance Use and Comorbid Severe Psychiatric Disorders: Study Protocol

    National Research Council Canada - National Science Library

    Benarous, Xavier; Edel, Yves; Consoli, Angèle; Brunelle, Julie; Etter, Jean-François; Cohen, David; Khazaal, Yasser

    2016-01-01

    .... App-based technologies have shown promising results to help reduce substance use in adolescents, but their applicability in youths with associated severe psychiatric disorders is poorly documented...

  15. Reduction in occupational and patient radiation exposure from myocardial perfusion imaging: impact of stress-only imaging and high-efficiency SPECT camera technology.

    Science.gov (United States)

    Duvall, W Lane; Guma, Krista A; Kamen, Jacob; Croft, Lori B; Parides, Michael; George, Titus; Henzlova, Milena J

    2013-08-01

    Recently introduced high-efficiency SPECT cameras have demonstrated the ability to reduce radiation exposure to patients undergoing myocardial perfusion imaging studies, especially when combined with stress-only imaging protocols. To date there have been no relevant studies examining the reduced occupational radiation exposure to medical staff. We sought to determine whether changes in stress myocardial perfusion imaging protocols and camera technology can reduce the occupational radiation exposure to the staff of a nuclear cardiology laboratory. Monthly radiation dosimeter readings from 4 nuclear technologists, 4 nurses, and 2 administrative employees were analyzed from two 12-mo periods: October 2007-September 2008 (period 1), before the use of high-efficiency SPECT, and October 2010-September 2011 (period 2), after high-efficiency SPECT was introduced. The average monthly dose equivalent in millirems (1 mrem = 0.01 mSv) was recorded from personal dosimeters worn on laboratory coats. The total activity of (99m)Tc used per month, mean (99m)Tc administered activity per patient, average number of patients per month, patient time spent in the laboratory, and proportion of stress-only studies were determined. There were 3,539 patients in period 1 and 3,898 in period 2. An approximately 40% reduction in the dose equivalent across all staff members occurred during this time (-16.9 and -16.2 mrem for nuclear technologists and nurses, respectively; P efficiency SPECT technology and stress-only protocols resulted in a 34.7% reduction in mean total (99m)Tc administered activity between time periods, with camera technology being responsible for 39.2% of the reduction and stress-only protocols for 60.8%. A combination of high-efficiency SPECT technology and selective use of stress-only protocols significantly reduces the occupational radiation dose equivalent to the staff of a nuclear cardiology laboratory.

  16. Development of technology for obtaining multi-component hard and superhard alloys based on Ti, Si, W and others using ionizing radiation

    Directory of Open Access Journals (Sweden)

    A. Kupchishin

    2012-12-01

    Full Text Available Complex researches on creation of scientific bases of receiving new and perspective firm and superfirm materials with use of bunches of particles are carried out. Bases of radiating technology of receiving multicomponent firm and superfirm alloys on the basis of Ti, by Si, W, etc., high-energy bunches of ions, electrons, thermoinfluence and the microwave oven are developed. Works on search and a choice of modes radiating and the microwave oven of processing of powders, components of polymers and agglomeration modes (temperature, pressure are carried out. The technique of manufacturing of samples is developed.

  17. Treating the disconfirmed psychiatric client.

    Science.gov (United States)

    Heineken, J

    1983-01-01

    Frequent disconfirmation behaviors have been documented in psychiatric clients. Individuals who demonstrate maladaptive patterns of disconfirmation can learn to understand and modify this dysfunctional sequence. Through one to one interactions and group discussions, psychiatric nurses can help clients learn more positive communication behaviors. This accomplishment will positively affect the client's interpersonal responsiveness and self-esteem.

  18. Psychiatric comorbidity : fact or artifact?

    NARCIS (Netherlands)

    van Loo, Hanna; Romeijn, Johannes

    The frequent occurrence of comorbidity has brought about an extensive theoretical debate in psychiatry. Why are the rates of psychiatric comorbidity so high and what are their implications for the ontological and epistemological status of comorbid psychiatric diseases? Current explanations focus

  19. College Students with Psychiatric Disabilities

    Science.gov (United States)

    Singh, Delar K.

    2011-01-01

    This paper focuses on college students with psychiatric disabilities. It defines and discusses various psychiatric conditions such as mood disorders, anxiety disorders, eating disorders, and personality disorders. It concludes with accommodations that a college professor can make to help these students succeed in higher education. (Contains 1…

  20. Gene therapy for psychiatric disorders.

    Science.gov (United States)

    Gelfand, Yaroslav; Kaplitt, Michael G

    2013-01-01

    Gene therapy has become of increasing interest in clinical neurosurgery with the completion of numerous clinical trials for Parkinson disease, Alzheimer disease, and pediatric genetic disorders. With improved understanding of the dysfunctional circuitry mediating various psychiatric disorders, deep brain stimulation for refractory psychiatric diseases is being increasingly explored in human patients. These factors are likely to facilitate development of gene therapy for psychiatric diseases. Because delivery of gene therapy agents would require the same surgical techniques currently being employed for deep brain stimulation, neurosurgeons are likely to lead the development of this field, as has occurred in other areas of clinical gene therapy for neurologic disorders. We review the current state of gene therapy for psychiatric disorders and focus specifically on particular areas of promising research that may translate into human trials for depression, drug addiction, obsessive-compulsive disorder, and schizophrenia. Issues that are relatively unique to psychiatric gene therapy are also discussed. Copyright © 2013. Published by Elsevier Inc.

  1. The psychiatric interview

    DEFF Research Database (Denmark)

    Frederiksen, Julie Elisabeth Nordgaard; Sass, Louis A; Parnas, Josef

    2012-01-01

    that are historically rooted in logical positivism and behaviorism. These theoretical approaches marked decisively the so-called "operational revolution in psychiatry" leading to the creation of DSM-III. This paper attempts to examine the theoretical assumptions that underlie the use of a fully structured psychiatric...... person), actionable format, used for classification, treatment, and research. Our central thesis is that psychiatry targets the phenomena of consciousness, which, unlike somatic symptoms and signs, cannot be grasped on the analogy with material thing-like objects. We claim that in order to perform...... faithful distinctions in this particular domain, we need a more adequate approach, that is, an approach that is guided by phenomenologically informed considerations. Our theoretical discussion draws upon clinical examples derived from structured and semi-structured interviews. We conclude that fully...

  2. The Use of Radiation Detectors in Medicine: The Future of Molecular Imaging and Multimodality Imaging: Advantages and Technological Challenges (3/3)

    CERN Multimedia

    CERN. Geneva

    2009-01-01

    The development of radiation detectors in the field of nuclear and particle physics has had a terrific impact in medical imaging since this latter discipline took off in late ’70 with the invention of the CT scanners. The massive use in High Energy Physics of position sensitive gas detectors, of high Z and high density scintillators coupled to Photomultiplier (PMT) and Position Sensitive Photomultipliers (PSPMT), and of solid state detectors has triggered during the last 30 years a series of novel applications in Medical Imaging with ionizing radiation. The accelerated scientific progression in genetics and molecular biology has finally generated what it is now called Molecular Imaging. This field of research presents additional challenges not only in the technology of radiation detector, but more and more in the ASIC electronics, fast digital readout and parallel software. In this series of three lectures I will try to present how high energy physics and medical imaging development have both benefited by t...

  3. Radiation Technology Against Bioterrorism

    Science.gov (United States)

    2004-10-25

    Bacillus pumilus 1.83 – 2.92 Bacillus sphaericus 2.56 – 3.87 Bacillus anthracis 2.38 – 5.50 Spore-forming anaerobes Clostridium perfringe 1.75 – 2.15...vegetative species. The anaerobic spore formers like Clostridium (D10 values ~ 2.2 – 3.4 kGy) are more radioresistant than aerobic Bacillus spores (D10...factor. Experiments with dry spores of Bacillus megaterium shows that the sensitivity is constant between -268°C and -148°C, increasing temperature

  4. Mobile technology and social media in the clinical practice of young radiation oncologists: results of a comprehensive nationwide cross-sectional study.

    Science.gov (United States)

    Bibault, Jean-Emmanuel; Leroy, Thomas; Blanchard, Pierre; Biau, Julian; Cervellera, Mathilde; Diaz, Olivia; Faivre, Jean Christophe; Fumagalli, Ingrid; Lescut, Nicolas; Martin, Valentine; Pichon, Baptiste; Riou, Olivier; Thureau, Sébastien; Giraud, Philippe

    2014-09-01

    Social media and mobile technology are transforming the way in which young physicians are learning and practicing medicine. The true impact of such technologies has yet to be evaluated. We performed a nationwide cross-sectional survey to better assess how young radiation oncologists used these technologies. An online survey was sent out between April 24, 2013, and June 1, 2013. All residents attending the 2013 radiation oncology French summer course were invited to complete the survey. Logistic regressions were performed to assess predictors of use of these tools in the hospital on various clinical endpoints. In all, 131 of 140 (93.6%) French young radiation oncologists answered the survey. Of these individuals, 93% owned a smartphone and 32.8% owned a tablet. The majority (78.6%) of the residents owning a smartphone used it to work in their department. A total of 33.5% had more than 5 medical applications installed. Only 60.3% of the residents verified the validity of the apps that they used. In all, 82.9% of the residents had a social network account. Most of the residents in radiation oncology use their smartphone to work in their department for a wide variety of tasks. However, the residents do not consistently check the validity of the apps that they use. Residents also use social networks, with only a limited impact on their relationship with their patients. Overall, this study highlights the irruption and the risks of new technologies in the clinical practice and raises the question of a possible regulation of their use in the hospital. Copyright © 2014 Elsevier Inc. All rights reserved.

  5. Ionizing radiation effect on different types of flours used in bakery technology; Efeito da radiacao ionizante em diferentes tipos de farinhas utilizadas em tecnologia de panificacao

    Energy Technology Data Exchange (ETDEWEB)

    Teixeira, Christian Alexandre Heinz Melsheimer

    2011-07-01

    In this work, an evaluation of the changes caused by ionizing radiation in different types and quantities of products rich in starch (wheat flour, cassava, rye, whole wheat, green banana pulp and maize) on rheological, technological, physical and texture characteristics was studied. The samples were irradiated in a {sup 60}Co source with doses up to 10kGy, and dose rate about 2kGy/h. It was studied the force and the extensibility of strong and weak wheat flours and the rheological behavior was observed for one, five and thirty days after irradiation. The technological characteristic studied for up to 1 month after irradiation, was the enzymatic activity of the irradiated, weak and strong flours. The physical characteristics: height, weight and moisture loss and texture of loaves made with a partial replacement (30%) of wheat flour by different irradiated flours was established. The results showed that with the increase of radiation dose there was an increase of enzymatic activity, especially for higher doses (9kGy). These results corroborate for the understanding that there would be no need of addition of enzymatic improvers for the bread confection. The height, weight, and loss of moisture from the products developed with different substitutions of flours used in the formulations, showed different behaviors. With an increasing of the radiation dose applied, there was an increase in the height of the loaves, as well as a reduced loss of moisture on the products developed with substitution of 30% of the wheat flour with irradiated wheat flour and pulp of green banana flour. From a technological standpoint, the enzymatic activity was not adversely affected by radiation. Considering the characteristics studied, the dose of 9kGy would be recommended seeking the production of loaves. Although the irradiation process is generally applied in the preservation of hygienic quality of food products, its use on different kinds of flours used in bread production may induce some

  6. Mobile Technology and Social Media in the Clinical Practice of Young Radiation Oncologists: Results of a Comprehensive Nationwide Cross-sectional Study

    Energy Technology Data Exchange (ETDEWEB)

    Bibault, Jean-Emmanuel, E-mail: jebibault@gmail.com [Academic Radiation Oncology Department, Oscar Lambret Center, Lille (France); French Society of Young Radiation Oncologists (SFjRO), Centre Antoine-Béclère, Paris (France); Leroy, Thomas [Academic Radiation Oncology Department, Oscar Lambret Center, Lille (France); French Society of Young Radiation Oncologists (SFjRO), Centre Antoine-Béclère, Paris (France); Blanchard, Pierre [Academic Radiation Oncology Department, Gustave Roussy Institute, Villejuif Cedex (France); Biostatistics and Epidemiology Department, Gustave Roussy, Villejuif Cedex (France); Biau, Julian [Radiation Oncology Department, Jean-Perrin Center, Clermont-Ferrand cedex (France); French Society of Young Radiation Oncologists (SFjRO), Centre Antoine-Béclère, Paris (France); Cervellera, Mathilde [Radiation Oncology Department, Jean-Godinot Center, Reims (France); French Society of Young Radiation Oncologists (SFjRO), Centre Antoine-Béclère, Paris (France); Diaz, Olivia [Radiation Oncology Department, Lyon Sud University Hospital, Pierre-Bénite Cedex (France); French Society of Young Radiation Oncologists (SFjRO), Centre Antoine-Béclère, Paris (France); Faivre, Jean Christophe [Academic Radiation Oncology and Brachytherapy Departement, Alexis-Vautrin Center, Avenue de Bourgogne, 54511 Vandoeuvre-lès-Nancy (France); French Society of Young Radiation Oncologists (SFjRO), Centre Antoine-Béclère, Paris (France); and others

    2014-09-01

    Purpose: Social media and mobile technology are transforming the way in which young physicians are learning and practicing medicine. The true impact of such technologies has yet to be evaluated. Methods and Materials: We performed a nationwide cross-sectional survey to better assess how young radiation oncologists used these technologies. An online survey was sent out between April 24, 2013, and June 1, 2013. All residents attending the 2013 radiation oncology French summer course were invited to complete the survey. Logistic regressions were performed to assess predictors of use of these tools in the hospital on various clinical endpoints. Results: In all, 131 of 140 (93.6%) French young radiation oncologists answered the survey. Of these individuals, 93% owned a smartphone and 32.8% owned a tablet. The majority (78.6%) of the residents owning a smartphone used it to work in their department. A total of 33.5% had more than 5 medical applications installed. Only 60.3% of the residents verified the validity of the apps that they used. In all, 82.9% of the residents had a social network account. Conclusions: Most of the residents in radiation oncology use their smartphone to work in their department for a wide variety of tasks. However, the residents do not consistently check the validity of the apps that they use. Residents also use social networks, with only a limited impact on their relationship with their patients. Overall, this study highlights the irruption and the risks of new technologies in the clinical practice and raises the question of a possible regulation of their use in the hospital.

  7. Identification and Preliminary Validation of Radiation Response Protein(s) in Human Blood for a High-throughput Molecular Biodosimetry Technology for the Future.

    Science.gov (United States)

    Nongrum, Saibadaiahun; Vaiphei, S Thangminlal; Keppen, Joshua; Ksoo, Mandahakani; Kashyap, Ettrika; Sharan, Rajesh N

    2017-01-01

    The absence of a rapid and high-throughput technology for radiation biodosimetry has been a great obstacle in our full preparedness to cope with large-scale radiological incidents. The existing cytogenetic technologies have limitations, primarily due to their time-consuming methodologies, which include a tissue culture step, and the time required for scoring. This has seriously undermined its application in a mass casualty scenario under radiological emergencies for timely triage and medical interventions. Recent advances in genomics and proteomics in the postgenomic era have opened up new platforms and avenues to discover molecular biomarkers for biodosimetry in the future. Using a genomic-to-proteomic approach, we have identified a basket of twenty "candidate" radiation response genes (RRGs) using DNA microarray and tools of bioinformatics immediately after ex vivo irradiation of freshly drawn whole blood of consenting and healthy human volunteers. The candidate RRGs have partially been validated using real-time quantitative polymerase chain reaction (RT-qPCR or qPCR) to identify potential "candidate" RRGs at mRNA level. Two potential RRGs, CDNK1A and ZNF440, have so far been identified as genes with potentials to form radiation response proteins in liquid biopsy of blood, which shall eventually form the basis of fluorescence- or ELISA-based quantitative immunoprobe assay for a high-throughput technology of molecular biodosimetry in the future. More work is continuing.

  8. Virtual reality technology used to estimate radiation doses in nuclear installations; Utilizacao de ambientes virtuais na estimativa de dose de radiacao em instalacoes nucleares

    Energy Technology Data Exchange (ETDEWEB)

    Augusto, Silas Cordeiro

    2008-03-15

    The physical integrity of people when walking in places subjected to radiation can be preserved by following some rules. Among these rules are safe limits of radiation level, proximity of radiation sources, time of exposition to radiation sources, and a combination of these factors. In this way, previous training and simulations of operation proceedings to be executed in places subjected to radiation help to better prepare the course in such places, minimizing the absorbed dose. On the other hand, virtual reality is a technology applicable in several areas, enabling the training and simulation of real places and hypothetical scenarios, with a good level of realism, but without danger if compared to the same activities in the real world. As a virtual environment does not presents any health risks, it is possible to train workers beforehand to several operation or maintenance scenarios. In this virtual environment, the dose tax distribution can be visualized, and the dose absorbed by the worker, represented and simulated in the virtual environment by a virtual character (avatar) can be shown. Therefore, the tasks to be done can be better planned, evaluating the workers actions and the performance so to reduce failures and health risks. Finally, this work presents a tool to build and navigate in virtual environments, enabling the training of activities in nuclear facilities. To that end is proposed a methodology to modify and adapt a free game engine. (author)

  9. Gender, status, and psychiatric labels.

    Science.gov (United States)

    Kroska, Amy; Harkness, Sarah K; Brown, Ryan P; Thomas, Lauren S

    2015-11-01

    We examine a key modified labeling theory proposition-that a psychiatric label increases vulnerability to competence-based criticism and rejection-within task- and collectively oriented dyads comprised of same-sex individuals with equivalent education. Drawing on empirical work that approximates these conditions, we expect the proposition to hold only among men. We also expect education, operationalized with college class standing, to moderate the effects of gender by reducing men's and increasing women's criticism and rejection. But, we also expect the effect of education to weaken when men work with a psychiatric patient. As predicted, men reject suggestions from teammates with a psychiatric history more frequently than they reject suggestions from other teammates, while women's resistance to influence is unaffected by their teammate's psychiatric status. Men also rate psychiatric patient teammates as less powerful but no lower in status than other teammates, while women's teammate assessments are unaffected by their teammate's psychiatric status. Also as predicted, education reduces men's resistance to influence when their teammate has no psychiatric history. Education also increases men's ratings of their teammate's power, as predicted, but has no effect on women's resistance to influence or teammate ratings. We discuss the implications of these findings for the modified labeling theory of mental illness and status characteristics theory. Copyright © 2015 Elsevier Inc. All rights reserved.

  10. Psychiatric disorders in myasthenia gravis

    Directory of Open Access Journals (Sweden)

    Mariana Inés Ybarra

    2011-04-01

    Full Text Available OBJECTIVE: To investigate the prevalence of psychiatric disorders in patients with myasthenia gravis (MG. METHOD: Forty-one patients with MG answered to a structured psychiatric interview (MINI-Plus. RESULTS: Eleven (26.1% patients were diagnosed with a depressive disorder and 19 (46.3% were diagnosed with an anxiety disorder. Patients with dysthymia were older (p=0.029 and had longer disease duration (p=0.006. Patients with social phobia also had longer disease duration (p=0.039. CONCLUSION: Psychiatric disorders in MG are common, especially depressive and anxiety disorders.

  11. The cerebellum and psychiatric disorders

    Directory of Open Access Journals (Sweden)

    Joseph ePhillips

    2015-05-01

    Full Text Available The cerebellum has been considered for a long time to play a role solely in motor coordination. However, studies over the past two decades have shown that the cerebellum also plays a key role in many motor, cognitive, and emotional processes. In addition, studies have also shown that the cerebellum is implicated in many psychiatric disorders including attention deficit hyperactivity disorder, autism spectrum disorders, schizophrenia, bipolar disorder, major depressive disorder and anxiety disorders. In this review, we discuss existing studies reporting cerebellar dysfunction in various psychiatric disorders. We will also discuss future directions for studies linking the cerebellum to psychiatric disorders.

  12. [Qualitative methods in psychiatric research].

    Science.gov (United States)

    Sikorski, Claudia; Glaesmer, Heide

    2011-01-01

    This article addresses the usage of qualitative methods in psychiatric research and presents the qualitative approach in more detail. Recent original empirical work of a German psychiatric journal was systematically reviewed. Methods used to collect and analyse the information are detailed. One third of the articles used a solely qualitative research design. One further article applied a combination of quantitative and qualitative approaches. Three kinds of the qualitative interviews were used (in depth, narrative and problem-focussed interview). Additionally, focus groups (group discussions) and qualitative content analysis were applied by studies. Qualitative approaches are an integral part of psychiatric research. Further work should assure to use adequate sampling strategies.

  13. A Microbolometer System for Radiation Detection in the THz Frequency Range with a Resonating Cavity Fabricated in the CMOS Technology.

    Science.gov (United States)

    Sesek, Aleksander; Zemva, Andrej; Trontelj, Janez

    2018-02-14

    The THz sensors using microbolometers as a sensing element are reported as one of the most sensitive room-temperature THz detectors suitable for THz imaging and spectroscopic applications. Microbolometer detectors are usually fabricated using different types of the MEMS technology. The patent for the detection system presented in this paper describes a method for microbolometer fabrication using a standard CMOS technology with advanced micromachining techniques. The measured sensitivity of the sensors fabricated by the patented method is 1000 V/W at an optimal frequency and is determined by the performance of a double-dipole antenna and quarter-wavelength resonant cavity. The paper presents a patented method for fabrication of a microbolometer system for radiation detection in the THz frequency range (16). The method is divided into several stages regarding the current silicon micromachining process. Main stages are fabrication of supporting structures for micro bridge, creation of micro cavities and fabrication of Aluminum antenna and Titanium microbolometer. Additional method for encapsulation in the vacuum is described which additionally improves the performance of bolometer. The CMOS technology is utilized for fabrication as it is cost effective and provides the possibility of larger sensor systems integration with included amplification. At other wavelengths (e.g. IR region) thermistors are usually also the receivers with the sensor resistance change provoked by self-heating. In the THz region the energy is received by an antenna coupled to a thermistor. Depending on the specific application requirement, two types of the antenna were designed and used; a narrow-band dipole antenna and a wideband log-periodic antenna. With method described in the paper, the microbolometer detector reaches sensitivities up to 500 V/W and noise equivalent power (NEP) down to 10 pW/√Hz. Additional encapsulation in the vacuum improves its performance at least by a factor of 2

  14. Rabeprazole and psychiatric symptoms.

    Science.gov (United States)

    Polimeni, Giovanni; Cutroneo, Paola; Gallo, Adele; Gallo, Salvatore; Spina, Edoardo; Caputi, Achille P

    2007-07-01

    To report the case of a patient who developed marked anxiety associated with episodes of panic attacks after starting rabeprazole therapy. An otherwise healthy 55-year-old woman was prescribed rabeprazole 20 mg/day administered in the morning for persistent symptoms of dyspepsia. Ten days later, she presented with a 7 day history of marked anxiety associated with panic attacks, night terror (pavor nocturnus), episodic mental confusion, and attention deficit. Within 2 days of discontinuing rabeprazole, the patient recovered completely from the neuropsychiatric manifestations. Subsequent esomeprazole therapy did not cause psychiatric symptoms. Rabeprazole-induced hypergastrinemia may have played a role in this neuropsychiatric adverse reaction. Several lines of evidence have indicated that gastrin-releasing peptide, whose release is mediated by proton pump inhibitor (PPI)-induced secretion of gastrin, is involved in regulating aspects of behavior that might be altered in disorders such as anxiety, depression, and dementia. The fact that rabeprazole has the highest capacity of inducing gastrin increase compared with other PPIs might explain why our patient's panic symptoms disappeared after switching to esomeprazole. Based on the Naranjo probability scale, rabeprazole was the probable cause of the adverse reaction. Specific studies are needed to investigate the potential role of PPI-induced hypergastrinemia in neuropsychiatric adverse reactions.

  15. Monitoring dynamic reactions of red blood cells to UHF electromagnetic waves radiation using a novel micro-imaging technology.

    Science.gov (United States)

    Ruan, Ping; Yong, Junguang; Shen, Hongtao; Zheng, Xianrong

    2012-12-01

    Multiple state-of-the-art techniques, such as multi-dimensional micro-imaging, fast multi-channel micro-spetrophotometry, and dynamic micro-imaging analysis, were used to dynamically investigate various effects of cell under the 900 MHz electromagnetic radiation. Cell changes in shape, size, and parameters of Hb absorption spectrum under different power density electromagnetic waves radiation were presented in this article. Experimental results indicated that the isolated human red blood cells (RBCs) do not have obviously real-time responses to the ultra-low density (15 μW/cm(2), 31 μW/cm(2)) electromagnetic wave radiation when the radiation time is not more than 30 min; however, the cells do have significant reactions in shape, size, and the like, to the electromagnetic waves radiation with power densities of 1 mW/cm(2) and 5 mW/cm(2). The data also reveal the possible influences and statistical relationships among living human cell functions, radiation amount, and exposure time with high-frequency electromagnetic waves. The results of this study may be significant on protection of human being and other living organisms against possible radiation affections of the high-frequency electromagnetic waves.

  16. Semiconductor radiation detectors. Device physics

    Energy Technology Data Exchange (ETDEWEB)

    Lutz, G. [Max-Planck-Institut fuer Physik, Muenchen (Germany)]|[Max-Planck-Institut fuer Extraterrestrische Physik, Garching (Germany). Semiconductor Lab.

    1999-07-01

    The following topics were dealt with: semiconductor radiation detectors, basic semiconductor structures, semiconductors, energy measurement, radiation-level measurement, position measurement, electronics of the readout function, detectors with intrinsic amplification, detector technology, device stability, radiation hardness and device simulation.

  17. Lesion procedures in psychiatric neurosurgery.

    Science.gov (United States)

    Patel, Shaun R; Aronson, Joshua P; Sheth, Sameer A; Eskandar, Emad N

    2013-01-01

    Lesion procedures for psychiatric indications have a history that spans more than a century. This review provides a brief history of psychiatric surgery and addresses the most recent literature on lesion surgery for the treatment of anxiety and mood disorders. Relevant data described in publications from the early 1900 s through the modern era regarding lesion procedures for psychiatric indications, both historical and current use, are reported. The early procedures of Burkhardt, Moniz, and Freeman are reviewed, followed by descriptions of the more refined techniques of Leksell, Knight, Foltz, White, and Kelly. The application of lesion procedures to obsessive-compulsive disorder, mood disorders, and addiction are discussed. Lesioning procedures have informed modern deep brain stimulation targets. Recent lesioning studies demonstrate the efficacy and durability of these procedures in severely disabled patients. Judicious application of these techniques should continue for appropriately selected patients with severe, refractory psychiatric disorders. Copyright © 2013. Published by Elsevier Inc.

  18. Tics, ADHD and Psychiatric Comorbidity

    Directory of Open Access Journals (Sweden)

    J Gordon Millichap

    2002-06-01

    Full Text Available The prevalence of teacher-rated tic behaviors in 3006 school children, from preschool to adolescence, was determined in a study of comorbid psychiatric symptoms at State University of New York, Stony Brook, NY.

  19. Tics, ADHD and Psychiatric Comorbidity

    OpenAIRE

    J Gordon Millichap

    2002-01-01

    The prevalence of teacher-rated tic behaviors in 3006 school children, from preschool to adolescence, was determined in a study of comorbid psychiatric symptoms at State University of New York, Stony Brook, NY.

  20. Psychiatric disorders in the elderly.

    Science.gov (United States)

    Skoog, Ingmar

    2011-07-01

    Recent research has shown that depression, anxiety disorders, and psychosis are more common than previously supposed in elderly populations without dementia. It is unclear whether the frequency of these disorders increases or decreases with age. Clinical expression of psychiatric disorders in old age may be different from that seen in younger age groups, with less and often milder symptoms. Concurrently, comorbidity between different psychiatric disorders is immense, as well as comorbidity with somatic disorders. Cognitive function is often decreased in people with depression, anxiety disorders, and psychosis, but whether these disorders are risk factors for dementia is unclear. Psychiatric disorders in the elderly are often related to cerebral neurodegeneration and cerebrovascular disease, although psychosocial risk factors are also important. Psychiatric disorders, common among the elderly, have consequences that include social deprivation, poor quality of life, cognitive decline, disability, increased risk for somatic disorders, suicide, and increased nonsuicidal mortality.

  1. Psychiatric emergencies (part II): psychiatric disorders coexisting with organic diseases.

    Science.gov (United States)

    Testa, A; Giannuzzi, R; Sollazzo, F; Petrongolo, L; Bernardini, L; Dain, S

    2013-02-01

    In this Part II psychiatric disorders coexisting with organic diseases are discussed. "Comorbidity phenomenon" defines the not univocal interrelation between medical illnesses and psychiatric disorders, each other negatively influencing morbidity and mortality. Most severe psychiatric disorders, such as schizophrenia, bipolar disorder and depression, show increased prevalence of cardiovascular disease, related to poverty, use of psychotropic medication, and higher rate of preventable risk factors such as smoking, addiction, poor diet and lack of exercise. Moreover, psychiatric and organic disorders can develop together in different conditions of toxic substance and prescription drug use or abuse, especially in the emergency setting population. Different combinations with mutual interaction of psychiatric disorders and substance use disorders are defined by the so called "dual diagnosis". The hypotheses that attempt to explain the psychiatric disorders and substance abuse relationship are examined: (1) common risk factors; (2) psychiatric disorders precipitated by substance use; (3) psychiatric disorders precipitating substance use (self-medication hypothesis); and (4) synergistic interaction. Diagnostic and therapeutic difficulty concerning the problem of dual diagnosis, and legal implications, are also discussed. Substance induced psychiatric and organic symptoms can occur both in the intoxication and withdrawal state. Since ancient history, humans selected indigene psychotropic plants for recreational, medicinal, doping or spiritual purpose. After the isolation of active principles or their chemical synthesis, higher blood concentrations reached predispose to substance use, abuse and dependence. Abuse substances have specific molecular targets and very different acute mechanisms of action, mainly involving dopaminergic and serotoninergic systems, but finally converging on the brain's reward pathways, increasing dopamine in nucleus accumbens. The most common

  2. Superficial mycoses among psychiatric patients in Mathari hospital ...

    African Journals Online (AJOL)

    Objective: To determine the prevalence of superficial mycoses among psychiatric patients. Design: Randomised Prospective study. Setting: Mathari Mental Hospital, and Jomo Kenyatta University of Agriculture and Technology, Nairobi Kenya. Results: A study was conducted on prevalence of superficial fungal infections ...

  3. Radiation effects in semiconductors

    CERN Document Server

    2011-01-01

    There is a need to understand and combat potential radiation damage problems in semiconductor devices and circuits. Written by international experts, this book explains the effects of radiation on semiconductor devices, radiation detectors, and electronic devices and components. These contributors explore emerging applications, detector technologies, circuit design techniques, new materials, and innovative system approaches. The text focuses on how the technology is being used rather than the mathematical foundations behind it. It covers CMOS radiation-tolerant circuit implementations, CMOS pr

  4. Electron beam accelerators—trends in radiation processing technology for industrial and environmental applications in Latin America and the Caribbean

    Science.gov (United States)

    Parejo Calvo, Wilson A.; Duarte, Celina L.; Machado, Luci Diva B.; Manzoli, Jose E.; Geraldo, Aurea Beatriz C.; Kodama, Yasko; Silva, Leonardo Gondim A.; Pino, Eddy S.; Somessari, Elizabeth S. R.; Silveira, Carlos G.; Rela, Paulo R.

    2012-08-01

    The radiation processing technology for industrial and environmental applications has been developed and used worldwide. In Latin America and the Caribbean and particularly in Brazil there are 24 and 16 industrial electron beam accelerators (EBA) respectively with energy from 200 keV to 10 MeV, operating in private companies and governmental institutions to enhance the physical and chemical properties of materials. However, there are more than 1500 high-current electron beam accelerators in commercial use throughout the world. The major needs and end-use markets for these electron beam (EB) units are R and D, wire and electric cables, heat shrinkable tubes and films, PE foams, tires, components, semiconductors and multilayer packaging films. Nowadays, the emerging opportunities in Latin America and the Caribbean are paints, adhesives and coatings cure in order to eliminate VOCs and for less energy use than thermal process; disinfestations of seeds; and films and multilayer packaging irradiation. For low-energy EBA (from 150 keV to 300 keV). For mid-energy EBA (from 300 keV to 5 MeV), they are flue gas treatment (SO2 and NOX removal); composite and nanocomposite materials; biodegradable composites based on biorenewable resources; human tissue sterilization; carbon and silicon carbide fibers irradiation; irradiated grafting ion-exchange membranes for fuel cells application; electrocatalysts nanoparticles production; and natural polymers irradiation and biodegradable blends production. For high-energy EBA (from 5 MeV to 10 MeV), they are sterilization of medical, pharmaceutical and biological products; gemstone enhancement; treatment of industrial and domestic effluents and sludge; preservation and disinfestations of foods and agricultural products; soil disinfestations; lignocellulosic material irradiation as a pretreatment to produce ethanol biofuel; decontamination of pesticide packing; solid residues remediation; organic compounds removal from wastewater; and

  5. Psychiatric characteristics of homicide defendants.

    Science.gov (United States)

    Martone, Christine A; Mulvey, Edward P; Yang, Suzanne; Nemoianu, Andrei; Shugarman, Ryan; Soliman, Layla

    2013-09-01

    The authors examined the rate of mental disorders in an unselected sample of homicide defendants in a U.S. jurisdiction, seeking to identify psychiatric factors associated with offense characteristics and court outcomes. Defendants charged with homicide in a U.S. urban county between 2001 and 2005 received a psychiatric evaluation after arrest. Demographic, historical, and psychiatric variables as well as offense characteristics and legal outcomes were described. Bivariate analyses examined differences by age group and by race, and logistic models examined predictors of multiple victims, firearm use, guilty plea, and guilty verdict. Fifty-eight percent of the sample had at least one axis I or II diagnosis, most often a substance use disorder (47%). Axis I or II diagnoses were more common (78%) among defendants over age 40. Although 37% of the sample had prior psychiatric treatment, only 8% of the defendants with diagnosed axis I disorders had outpatient treatment during the 3 months preceding the homicide; African Americans were less likely than non-African Americans to be in treatment. African American males were more likely to use a firearm and to have a male victim. In exploratory analyses, psychiatric factors did not predict multiple victims, firearm use in the crime, or a guilty verdict. Rates of axis I disorders were lower than reported in previous studies. Few homicide defendants were in psychiatric treatment at the time of the crime, suggesting limited opportunities for prevention by mental health providers.

  6. Psychiatric aspects of induced abortion.

    Science.gov (United States)

    Stotland, Nada L

    2011-08-01

    Approximately one third of the women in the United States have an abortion during their lives. In the year 2008, 1.21 million abortions were performed in the United States (Jones and Koolstra, Perspect Sex Reprod Health 43:41-50, 2011). The psychiatric outcomes of abortion are scientifically well established (Adler et al., Science 248:41-43, 1990). Despite assertions to the contrary, there is no evidence that abortion causes psychiatric problems (Dagg, Am J Psychiatry 148:578-585, 1991). Those studies that report psychiatric sequelae suffer from severe methodological defects (Lagakos, N Engl J Med 354:1667-1669, 2006). Methodologically sound studies have demonstrated that there is a very low incidence of frank psychiatric illness after an abortion; women experience a wide variety of feelings over time, including, for some, transient sadness and grieving. However, the circumstances that lead a woman to terminate a pregnancy, including previous and/or ongoing psychiatric illness, are independently stressful and increase the likelihood of psychiatric illness over the already high baseline incidence and prevalence of mood and anxiety disorders among women of childbearing age. For optimal psychological outcomes, women, including adolescents, need to make autonomous and supported decisions about problem pregnancies. Clinicians can help patients facing these decisions and those who are working through feelings about having had abortions in the past.

  7. Studies on the control of mold and its toxin in indirect foods(animal feeds) by radiation technology

    Energy Technology Data Exchange (ETDEWEB)

    Chung, Duck Hwa; Shim, Won Bo; Cho, Sik Bee; Nimakashim; Song, Jung Un [Gyungsang National University, Jinju (Korea, Republic of)

    2010-04-15

    For determining susceptibility of the hazard fungi in feed to radiation, we developed enzyme-linked immunosorbent assay (ELISA) and high performance liquid chromatography (HPLC) with mycotoxin free feed and reconfirm liquid chromatography combined with tandem mass spectrometry (LC-MS/MS) method for the detection of mycotoxin. The growth of aflatoxigenic and ochratoxigenic fungi in the feeds were completely inhibited at > 3 kGy of both radiations, and the zearalenone producing fungi in the feeds was controlled at > 5 kGy of both radiations. The growth and mycotoxin productivity of three fungi (aflatoxigenic, ochratoxigenic and zearalenone producing fungi) were fully controlled at > 7 kGy of gamma-irradiation. This means that the growth and mycotoxin productivity of fungi in feed could be fully inhibited by gamma-irradiation at > 7 kGy and the safety feed also can produce and preserve by the proper radiation level and hygienic management of feed factory and livestock raiser

  8. Heavy-Ion Radiation Characteristics of DDR2 Synchronous Dynamic Random Access Memory Fabricated in 56 nm Technology

    National Research Council Canada - National Science Library

    Ryu, Kwang-Sun; Park, Mi-Young; Chae, Jang-Soo; Lee, In; Uchihori, Yukio; Kitamura, Hisashi; Takashima, Takeshi

    2012-01-01

    .... To investigate the resistance of the chip to the space radiation environment, we have performed heavy-ion-driven single event experiments using Heavy Ion Medical Accelerator in Chiba medium energy beam line...

  9. [Exploring the three-dimensional structure of dermal tissues of normal skin and scar in rat with synchrotron radiation X-ray imaging technology].

    Science.gov (United States)

    Jiang, Yu-zhi; Tong, Ya-jun; Xiao, Ti-qiao; Xie, Hong-lan; Qing, Chun; DU, Guo-hao; Lu, Shu-liang

    2012-02-01

    To compare the morphological difference between dermal tissue of normal skin and that of scar in rat, and to explore its structural pattern. The full-thickness skin and the scar tissue formed 3 weeks after wound healing from SD rats were harvested as samples, which were prepared appropriately afterwards. Samples were scanned and imaged with synchrotron radiation technology, micro-CT, and phase-contrast imaging technology. The images were rebuilt with three-dimensional software. The micro-CT was materialized by using X-ray generated by synchrotron radiation light source. The structure of dermal tissues was clearly shown with the assistance of phase-contrast imaging technology in the process. It was demonstrated that the dermal tissues of normal skin of rat were mainly composed of collagenous fibers, which twined together to form an olive-like structure. These olive-like structures as basic units were arranged randomly in a certain way. The collagenous fibers in dermal tissue of the scar were arranged in a parallel manner, while some fibers were crooked and arranged in a disorderly manner. Dermal tissue of normal skin in rat has stable three-dimensional structure, and its basic structure and manner of composition are obviously different from those of scar dermal tissue.

  10. Shielding Efficiency of a Fabric Based on Amorphous Glass-Covered Magnetic Microwires to Radiation Emitted by a Mobile Phone in 2G and 3G Communication Technologies

    Directory of Open Access Journals (Sweden)

    Miclăuş Simona

    2017-12-01

    Full Text Available A dual band mobile phone model was used to check the shielding properties of an amorphous ferromagnetic textile against the radiation emitted by the handset. Two frequencies belonging to the 2nd and 3rd generation of mobile emission technologies were used, 897 MHz and 1950 MHz. The specific absorption rate (SAR of energy deposition in a human head phantom was measured in standardized conditions. The textile contained micrometric-diameter wires of a ferromagnetic mixture embedded in a thin glass coat and weaved in a specific way. A set of fabric orientations and configurations (layering were provided in the experiment in order to achieve a better shielding to the phone’s radiation. Compared with the non-shielded handset, SAR deposited in the head while using the fabric-covered phone could be decreased up to 30 % of its initial value – in case of 2G technology and up to 24 % – in case of 3G technology. This type of material shows one of the highest shielding efficiencies of the electric-field component in near-field exposure conditions reported until now. A cubic curve of SAR decrease in depth of the head was revealed in both uncovered and covered handset, the effect of shielding being larger at the higher frequency.

  11. Psychiatric conditions associated with bullying.

    Science.gov (United States)

    Kumpulainen, Kirsti

    2008-01-01

    Bullying is a complex phenomenon moderated not only by the personal characteristics and behavioral traits of the individual but also by family rearing practices, as well as by situational factors such as the frequency and type of bullying. The phenomenon is also affected by group processes among the individuals present during the event. Bullying is a distressing experience that is often continuous over years and predicts both concurrent and future psychiatric symptoms and disorders, even in adulthood. At young ages, attention-deficit hyperactivity disorder and depression, as well as anxiety, are prevalent concurrently with bullying among the children involved. Later in young adulthood, male victims are at risk for anxiety, male bullies for personality disorders, and male bully-victims for both personality disorders and anxiety, and the risk is especially increased if the child is disturbed when involved in bullying at school age. Rarely does any single behavior predict future problems as clearly as bullying does, and additional assessment of psychiatric problems is always warranted, if the child is involved in bullying as a bully, victim or bully-victim. Based on our current knowledge, school-based interventions regulating the behavior of the child, increasing pro-social skills and promoting peer relationships are recommended for those without concurrent psychiatric disturbance, but those displaying psychiatric symptoms and disorders should be referred for psychiatric consultation and intervention.

  12. OCCUPATIONAL ROLE AFTER PSYCHIATRIC HOSPITALIZATION

    Directory of Open Access Journals (Sweden)

    GH.R GHASSEMI

    2003-03-01

    Full Text Available Introduction: Severe Psychiatricillness is accompanied by gross disturbances in patient's occupational role. This study presents a comparative picture of work performance before and after psychiatric hospitalization. Method: Subjects comprised 440 psychiatric admitters from Noor Medical center - Isfahan - Iran, who were followed from November 1999 to November 2000. Their work adjustment was measured by means of Weiss man's index. Data were computer analyzed using SPSS by running paired t- student and ANOVA. Results: Majority of the patients (53 % were without permanent sources of income before psychiatric hospitalization, about 12 percent of those who were working prior to hospitalization lost their job after being discharged from hospital. Better work adjustment before hospitalization was positively correlated with better work adjustment after discharge for working patients (r =0/66. Working ability of the patients after discharge was lesser than before the attack f9r patients with regular and irregular job (P < 001. Discussion: Job loss or poor working ability after psychiatric admission reported by several researchers and has bean confirmed in this study as well. These observatoins have been discussed in view of the current socio economic problems in the society and nature of psychiatric disturbances.

  13. Privacy in psychiatric treatment: threats and responses.

    Science.gov (United States)

    Appelbaum, Paul S

    2002-11-01

    The author provides an overview of the current status of privacy in psychiatric treatment, with particular attention to the effects of new federal regulations authorized by the Health Insurance Portability and Accountability Act (HIPAA). The author reviews the ethical and legal underpinnings for medical privacy, including the empirical data supporting its importance; discusses those portions of the new federal regulations most relevant to psychiatric practice; and suggests steps that psychiatrists can take to maintain their patients' privacy in the new environment. Medical ethics and law, in keeping with patients' preferences, traditionally have provided strong protection for the information that patients communicate while receiving medical care. In general, release of information has required patients' explicit consent. However, limitations of the consent model and technological innovations that permit the aggregation of computerized medical information have led to pressure for greater access to these data. Although the new federal regulations offer patients some additional protections (including security for psychotherapy notes), they also mark a retreat from reliance on patient consent and open up records to previously unauthorized uses, among them law enforcement investigations and marketing and fundraising by health care organizations. However, states retain the power to provide higher levels of protection. The new regulatory environment is less friendly to medical privacy but still leaves a great deal of discretion in physicians' hands. A commitment to protecting privacy as an ethical norm can be advanced by psychiatrists' requesting patients' consent even when it is not required, by ensuring that patients are aware of the limits on confidentiality, and by avoiding unnecessary breaches of privacy in the course of providing psychiatric care.

  14. Moral learning in psychiatric rehabilitation.

    Science.gov (United States)

    Sitvast, J E; Widdershoven, G A M; Abma, T A

    2011-07-01

    The purpose of this article is to illustrate moral learning in persons with a psychiatric disability who participated in a nursing intervention, called the photo-instrument. This intervention is a form of hermeneutic photography. The findings are based on a multiple case study of 42 patients and additional interviews with eight of them. Photo groups were organized within three settings of psychiatric services: ambulatory as well as clinical, all situated in the Netherlands. Data were analysed according to hermeneutic and semiotic principles. Two cases are presented. Findings show that voice and face are concepts that help to identify elements of moral learning in the rehabilitation process of persons with a psychiatric disability. During the process patients become more aware of their responsibilities towards themselves and others.

  15. Transposable elements and psychiatric disorders.

    Science.gov (United States)

    Guffanti, Guia; Gaudi, Simona; Fallon, James H; Sobell, Janet; Potkin, Steven G; Pato, Carlos; Macciardi, Fabio

    2014-04-01

    Transposable Elements (TEs) or transposons are low-complexity elements (e.g., LINEs, SINEs, SVAs, and HERVs) that make up to two-thirds of the human genome. There is mounting evidence that TEs play an essential role in genomic architecture and regulation related to both normal function and disease states. Recently, the identification of active TEs in several different human brain regions suggests that TEs play a role in normal brain development and adult physiology and quite possibly in psychiatric disorders. TEs have been implicated in hemophilia, neurofibromatosis, and cancer. With the advent of next-generation whole-genome sequencing approaches, our understanding of the relationship between TEs and psychiatric disorders will greatly improve. We will review the biology of TEs and early evidence for TE involvement in psychiatric disorders. © 2014 Wiley Periodicals, Inc.

  16. Secondary calibration laboratory for ionizing radiation laboratory accreitation program National Institute of Standards and Technology National Voluntary Laboratory Accreditation Program

    Energy Technology Data Exchange (ETDEWEB)

    Martin, P.R.

    1993-12-31

    This paper presents an overview of the procedures and requirements for accreditation under the Secondary Calibration Laboratory for Ionizing Radiation Program (SCLIR LAP). The requirements for a quality system, proficiency testing and the onsite assessment are discussed. The purpose of the accreditation program is to establish a network of secondary calibration laboratories that can provide calibrations traceable to the primary national standards.

  17. Reducing Radiation Dose Without Compromising Image Quality in Preoperative Perforator Flap Imaging With CTA Using ASIR Technology

    Science.gov (United States)

    Niumsawatt, Vachara; Debrotwir, Andrew N.; Rozen, Warren Matthew

    2014-01-01

    Computed tomographic angiography (CTA) has become a mainstay in preoperative perforator flap planning in the modern era of reconstructive surgery. However, the increased use of CTA does raise the concern of radiation exposure to patients. Several techniques have been developed to decrease radiation dosage without compromising image quality, with varying results. The most recent advance is in the improvement of image reconstruction using an adaptive statistical iterative reconstruction (ASIR) algorithm. We sought to evaluate the image quality of ASIR in preoperative deep inferior epigastric perforator (DIEP) flap surgery, through a direct comparison with conventional filtered back projection (FBP) images. A prospective review of 60 consecutive ASIR and 60 consecutive FBP CTA images using similar protocol (except for radiation dosage) was undertaken, analyzed by 2 independent reviewers. In both groups, we were able to accurately identify axial arteries and their perforators. Subjective analysis of image quality demonstrated no statistically significant difference between techniques. ASIR can thus be used for preoperative imaging with similar image quality to FBP, but with a 60% reduction in radiation delivery to patients. PMID:25058789

  18. Portrayal of psychiatric genetics in Australian print news media, 1996-2009.

    Science.gov (United States)

    Wilde, Alex; Bonfiglioli, Catriona; Meiser, Bettina; Mitchell, Philip B; Schofield, Peter R

    2011-10-03

    To investigate how Australian print news media portray psychiatric genetics. Content and framing analysis of a structured sample of print news items about psychiatric genetics published in Australian newspapers between 1996 and 2009. Identify dominant discourses about aetiology of mental illness, and perceived clinical outcomes and implications of psychiatric genetics research. We analysed 406 eligible items about the genetics of psychiatric disorders. News coverage of psychiatric genetics has steadily increased since 1996. Items attributing the aetiology of psychiatric disorders to gene-environment interactions (51%) outnumbered items attributing only genetic (30%) or only environmental factors (20%). Of items that referred to heritability of mental illness, frames of genetic determinism (78%) occurred more frequently than probabilistic frames (22%). Of frames related to genetic prophesy, genetic optimism frames (78%) were used more frequently than frames of genetic pessimism (22%). Psychosocial and ethical implications of psychiatric genetics received comparatively relatively little coverage (23%). The analysis identified 22 predictions about psychiatric genetic discoveries and the availability of molecular-based interventions in psychiatry, most of which (20/22, 91%) failed to manifest by the predicted year. Excessive optimism about the power of genetic technology in psychiatric health care, perceived clinical benefits, and largely unfulfilled predictions about availability of these benefits could encourage unrealistic expectations about future molecular-based treatment options for mental health.

  19. Psychiatric Adverse Effects of Dermatological Drugs

    Directory of Open Access Journals (Sweden)

    Mine Özmen

    2010-07-01

    Full Text Available Dermatological drugs, mostly corticosteroids and isotretinoin, cause different psychiatric adverse effects. During steroid therapy, a wide range of psychiatric conditions, from minor clinical symptoms like insomnia and anxiety to serious psychiatric syndromes like psychosis and delirium might be seen. In medical literature, a causal connection is usually suggested between “isotretinoin”, which is used for treatment of acne vulgaris and depression and suicide attempts. However, there are no statistically significant double-blind randomized studies that support this connection. Clinicians must know patient’s psychiatric history before using any dermatological treatment known as causing psychiatric adverse effects, and psychiatric consultation should be established whenever necessary.

  20. Suicide among older psychiatric inpatients

    DEFF Research Database (Denmark)

    Erlangsen, Annette; Zarit, Steven H; Tu, Xin

    2006-01-01

    characteristics. RESULTS: Affective disorders were found to be associated with an almost twofold higher risk of suicide among psychiatric inpatients than other types of disorders (95% confidence interval [CI]: 1.5-2.6). Patients with dementia had a significantly lower risk ratio of 0.2 (95% CI: 0......OBJECTIVE: Older adults have elevated suicide rates, especially in the presence of a psychiatric disorder, yet not much is known about predictors for suicide within this high-risk group. The current study examines the characteristics associated with suicide among older adults who are admitted...

  1. [Social psychiatric service as a cornerstone of psychiatric community care].

    Science.gov (United States)

    Hoffmann, P; Tiggemann, H G

    1991-12-01

    Psychiatric care has gradually been shifting in Germany from its original inpatient basis to outpatient and complementary treatment. This shift of emphasis resulted in a transfer of psychiatry-political responsibility to communal bodies and hence also to communal public health services. Sociopsychiatric service ranks high in communal psychiatric care setups, since it promotes cooperation and helps to coordinate efforts in individual cases in respect of focal points on which such care is centered. For the future, an expert commission has suggested that the various institutions actively engaged in community psychiatric care should team up in each region. This applies in particular to mobile services visiting the patients in their homes, and to the offices providing contracts to sociopsychiatric services of public health offices. Despite positive outlooks there are also quite a few negative aspects of present-day practice. One of them is poor definition of tasks and functions of communal sociopsychiatric services, whereas another one are the unsatisfactory quantitative and qualitative means at their disposal. It is also too often overlooked that psychiatric patients and disabled persons are entitled to compensation insurance payments to promote their rehabilitation, as provided for by individual legislation in the various German laender. To tap these sources sufficiently well, sociopsychiatric services must be better equipped in every respect. The professional competence of social workers and physicians, as well as of the relevant staff, must be safeguarded by continuing education and specialist training measures.

  2. Technology

    Directory of Open Access Journals (Sweden)

    Xu Jing

    2016-01-01

    Full Text Available The traditional answer card reading method using OMR (Optical Mark Reader, most commonly, OMR special card special use, less versatile, high cost, aiming at the existing problems proposed a method based on pattern recognition of the answer card identification method. Using the method based on Line Segment Detector to detect the tilt of the image, the existence of tilt image rotation correction, and eventually achieve positioning and detection of answers to the answer sheet .Pattern recognition technology for automatic reading, high accuracy, detect faster

  3. Radiation monitoring using imaging plate technology: A case study of leaves affected by the Chernobyl nuclear power plant and JCO criticality accidents

    Directory of Open Access Journals (Sweden)

    Kimura Shinzo

    2006-01-01

    Full Text Available This paper describes the use of a photostimulable phosphor screen imaging technique to detect radioactive contamination in the leaves of wormwood (Artemisia vulgaris L and fern (Dryopteris filix-max CL. Schoff plants affected by the Chernobyl nuclear power plant accident. The imaging plate technology is well known for many striking performances in two-dimensional radiation detection. Since imaging plate comprises an integrated detection system, it has been extensively applied to surface contamination distribution studies. In this study, plant samples were collected from high- and low-contaminated areas of Ukraine and Belarus, which were affected due to the Chernobyl accident and exposed to imaging technique. Samples from the highly contaminated areas revealed the highest photo-stimulated luminescence on the imaging plate. Moreover, the radio nuclides detected in the leaves by gamma and beta ray spectroscopy were 137Cs and 90Sr, respectively. Additionally, in order to assess contamination, a comparison was also made with leaves of plants affected during the JCO criticality accident in Japan. Based on the results obtained, the importance of imaging plate technology in environmental radiation monitoring has been suggested.

  4. The Predictive Value of Selected Extrinsic and Intrinsic Indicators of Overall Job Satisfaction in Diagnostic Radiological Technology, Radiation Therapy, and Nuclear Medicine Technology Allied Health Faculty

    Science.gov (United States)

    Beavers, Gregory S.

    2010-01-01

    Healthcare is the largest industry in the United States and 60 percent of its 14 million workers are in allied health jobs. The need to attract and retain allied health faculty is critical to preparing a competent workforce in healthcare. This study reports the results of a survey of 259 faculty members working in diagnostic radiologic technology,…

  5. Paraphilias in adult psychiatric inpatients.

    Science.gov (United States)

    Marsh, Patrick J; Odlaug, Brian L; Thomarios, Nick; Davis, Andrew A; Buchanan, Stephanie N; Meyer, Craig S; Grant, Jon E

    2010-05-01

    The goal of the present study was to examine the prevalence of paraphilias in an adult inpatient psychiatric population. One hundred twelve consecutive, voluntarily admitted, adult male psychiatric inpatients were administered the Structured Clinical Interview for DSM-IV, Sexual Disorders Module, Male Version, to assess the rates of DSM-IV paraphilias. Fifteen patients (13.4%) reported symptoms consistent with at least one lifetime DSM-IV paraphilia. The most common paraphilias were voyeurism (n = 9 [8.0%]), exhibitionism (n = 6 [5.4%]), and sexual masochism (n = 3 [2.7%]). Patients who screened positive for a paraphilia had significantly more psychiatric hospitalizations (P = .006) and, on a trend level, were more likely to have attempted suicide. In addition, patients with paraphilias were significantly more likely to report having been sexually abused than patients without a paraphilia (P = paraphilia. Paraphilias appear to be more common in adult male psychiatric inpatients than previously estimated. The study also demonstrated that these disorders were not screened for by the treating physician and thus may go untreated. Further, larger-scale studies are necessary in order to further examine the rates of these disorders in the general population.

  6. Genetic counseling for psychiatric disorders.

    Science.gov (United States)

    Tsuang, D W; Faraone, S V; Tsuang, M T

    2001-04-01

    Like other medical conditions, some psychiatric disorders are inherited, whereas others are not. Human genetics research is moving at a rapid pace. Genes for over 450 genetic disorders have been cloned and many disease-causing mutations have also been identified. The explosion of this new knowledge has created many new exciting opportunities in the diagnosis of these heritable disorders. The rapid pace of gene discovery will aid the identification of susceptibility genes for psychiatric disorders. Indeed, we can look forward to answers to many clinical and research questions. These are some of the gifts that the expanding field of human genetics research will continue to bring to medical science. However, as genetic tests for the detection of psychiatric disorders become available, many ethical, legal, and social implications will need to be considered. In this article, we review the principles of genetic counseling for psychiatric disorders, as well as the social and ethical dilemmas that genetic testing may bring. Although medical and scientific advances may bring many gifts, we should approach this new knowledge with caution, as one of the gifts may be a Pandora's box.

  7. Moral learning in psychiatric rehabilitation

    NARCIS (Netherlands)

    Sitvast, J.E.; Widdershoven, G.G.A.M.; Abma, T.A.

    2011-01-01

    The purpose of this article is to illustrate moral learning in persons with a psychiatric disability who participated in a nursing intervention, called the photo-instrument. This intervention is a form of hermeneutic photography. The findings are based on a multiple case study of 42 patients and

  8. Therapeutic abortion on psychiatric grounds

    African Journals Online (AJOL)

    1983-04-23

    Apr 23, 1983 ... those with psychiatric disorder; severe reactive depression was found in 27,5% and 50% were considered to have personality disorders sufficient to be identified as pathological. Such assessments were based on a record of longstanding neurotic or habitually maladaptive behaviour characterized by ...

  9. Predictors of psychiatric readmissions to

    African Journals Online (AJOL)

    identification of early symptoms of relapse, application of immediate and appropriate measures, and adequate record-keeping by health institutions are ... hospitalization, resulting from the policy of de-institutionalization in. Nigeria has led to ..... adolescent psychiatric care Aust N Z ] Psychiatry 2005; 39: 600-606. 3. vaett C.

  10. Dyspepsia in chronic psychiatric patients

    NARCIS (Netherlands)

    Mookhoek, E.J.; Meijs, V.M.M.; Loonen, A.J.M.; Leufkens, H.G.M.

    2005-01-01

    Introduction: We report on dyspeptic complaints among patients hospitalized in the long-stay ward of a general psychiatric hospital. Methods: A representative sample of the patients was interviewed using a structured questionnaire. Results: Eighty percent of the patients reported one or more

  11. National Cancer Data Base Analysis of Radiation Therapy Consolidation Modality for Cervical Cancer: The Impact of New Technological Advancements

    Energy Technology Data Exchange (ETDEWEB)

    Gill, Beant S. [Department of Radiation Oncology, Magee-Womens Hospital of University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania (United States); Lin, Jeff F. [Department of Gynecologic Oncology, Magee-Womens Hospital of University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania (United States); Krivak, Thomas C. [Department of Gynecologic Oncology, Western Pennsylvania Hospital, Pittsburgh, Pennsylvania (United States); Sukumvanich, Paniti; Laskey, Robin A.; Ross, Malcolm S.; Lesnock, Jamie L. [Department of Gynecologic Oncology, Magee-Womens Hospital of University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania (United States); Beriwal, Sushil, E-mail: beriwals@upmc.edu [Department of Radiation Oncology, Magee-Womens Hospital of University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania (United States)

    2014-12-01

    Purpose: To utilize the National Cancer Data Base to evaluate trends in brachytherapy and alternative radiation therapy utilization in the treatment of cervical cancer, to identify associations with outcomes between the various radiation therapy modalities. Methods and Materials: Patients with International Federation of Gynecology and Obstetrics stage IIB-IVA cervical cancer in the National Cancer Data Base who received treatment from January 2004 to December 2011 were analyzed. Overall survival was estimated by the Kaplan-Meier method. Univariate and multivariable analyses were performed to identify factors associated with type of boost radiation modality used and its impact on survival. Results: A total of 7654 patients had information regarding boost modality. A predominant proportion of patients were Caucasian (76.2%), had stage IIIB (48.9%) disease with squamous (82.0%) histology, were treated at academic/research centers (47.7%) in the South (34.8%), and lived 0 to 5 miles (27.9%) from the treating facility. A majority received brachytherapy (90.3%). From 2004 to 2011, brachytherapy use decreased from 96.7% to 86.1%, whereas intensity modulated radiation therapy (IMRT) and stereotactic body radiation therapy (SBRT) use increased from 3.3% to 13.9% in the same period (P<.01). Factors associated with decreased brachytherapy utilization included older age, stage IVA disease, smaller tumor size, later year of diagnosis, lower-volume treatment centers, and facility type. After controlling for significant factors from survival analyses, IMRT or SBRT boost resulted in inferior overall survival (hazard ratio, 1.86; 95% confidence interval, 1.35-2.55; P<.01) as compared with brachytherapy. In fact, the survival detriment associated with IMRT or SBRT boost was stronger than that associated with excluding chemotherapy (hazard ratio, 1.61′ 95% confidence interval, 1.27-2.04′ P<.01). Conclusions: Consolidation brachytherapy is a critical treatment component for

  12. Novel X-Ray Imaging Technology Allows Substantial Patient Radiation Reduction without Image Quality Impairment in Repetitive Transarterial Chemoembolization for Hepatocellular Carcinoma.

    Science.gov (United States)

    Wen, Xiaofei; Jiang, Xianxian; Li, Renfei; Zhang, Junya; Yang, Po; Shen, Baozhong

    2015-11-01

    To assess patient radiation dose reduction and the image quality of a new X-ray imaging technology during repetitive transarterial chemoembolization (TACE) for hepatocellular carcinoma (HCC). Fifty HCC patients (36 men; 57 ± 11 years) undergoing repetitive TACE were first randomly assigned to receive a TACE treatment on a reference X-ray system or a low-dose system with advanced real-time image processing. The alternate system was used for a repeated TACE (treatment interval, 0.5-6 months). Fluoroscopy time, number of digital subtraction angiography (DSA), air kerma (AK), and dose area product (DAP) were compared between the two systems and between the two repetitive TACE. Three interventional radiologists independently rated the image quality in blinded offline readings. Fluoroscopy time (8.7 ± 5.9 minutes vs. 8.7 ± 7.9 minutes, P = .981), numbers of DSA runs (6 ± 4 vs. 6 ± 4, P = .735), and exposure images (173 ± 86 vs. 168 ± 91, P = .916) were equivalent between the two systems. No statistical difference in X-ray usage was found between repeated treatments. Compared to the reference system, the technology significantly reduced AK and DAP by 48.6% (0.17 ± 0.13 Gy vs. 0.41 ± 0.36 Gy, P Image quality was rated comparable between the new system and the reference, with average scores of 3.9 ± 0.3 versus 4.4 ± 0.3 in fluoroscopy and 4.5 ± 0.2 versus 4.3 ± 0.3 in DSA. Patient radiation exposure can be substantially reduced by a factor of approximately two with the novel X-ray imaging technology while maintaining image quality. Copyright © 2015. Published by Elsevier Inc.

  13. Quality assurance for prospective EORTC radiation oncology trials: the challenges of advanced technology in a multicenter international setting.

    Science.gov (United States)

    Weber, Damien C; Poortmans, Philip M P; Hurkmans, Coen W; Aird, Edwin; Gulyban, Akos; Fairchild, Alysa

    2011-07-01

    The European Organization for the Research and Treatment of Cancer (EORTC) is a pan-European structure charged with improving cancer treatment through the testing of new therapeutic strategies in phases I-III clinical studies. Properly conducted trials in radiation oncology are required to demonstrate superiority of a new treatment over the current standard. The Radiation Oncology Group (ROG) has initiated a complex quality assurance (QA) program to ensure safe and effective treatment delivery. Most modern trials are multicenter and multidisciplinary, further increasing the importance of early, strict and consistent QA in radiotherapy (RT). QART measures confirm whether a site possesses minimum staff and equipment for participation. Dummy runs, reviews of patient treatment plans and complex dosimetry checks verify the ability of an institution to comply with the protocol. Data required for evaluation are increasingly exchanged digitally, allowing detailed plan reconstruction, evaluation of target volume delineation and recalculation of dose-volume parameters for comparison against predefined standards. The five tiers of QA implemented in EORTC trials are reviewed, along with past, current and future QART initiatives. As substantial human and financial resources are increasingly invested in QART, the importance of cost-benefit analysis of QA and its impact on clinical outcome cannot be overstated. Copyright © 2011 Elsevier Ireland Ltd. All rights reserved.

  14. High-Speed, Radiation-Tolerant Laser Drivers in 0.13 $\\mu$m CMOS Technology for HEP Applications

    CERN Document Server

    AUTHOR|(CDS)2073369; Moreira, Paulo; Calvo, Daniela; De Remigis, Paolo; Olantera, Lauri; Soos, Csaba; Troska, Jan; Wyllie, Ken

    2014-01-01

    The gigabit laser driver (GBLD) and low-power GBLD (LpGBLD) are two radiation-tolerant laser drivers designed to drive laser diodes at data rates up to 4.8 Gb/s. They have been designed in the framework of the gigabit-transceiver (GBT) and versatile-link projects to provide fast optical links capable of operation in the radiation environment of future high-luminosity high-energy physics experiments. The GBLD provides laser bias and modulation currents up to 43 mA and 24 mA, respectively. It can thus be used to drive vertical cavity surface emitting laser (VCSEL) and edge-emitting laser diodes. A pre-emphasis circuit, which can provide up to 12 mA in 70 ps pulses, has also been implemented to compensate for high external capacitive loads. The current driving capabilities of the LpGBLD are 2 times smaller that those of the GBLD as it has been optimized to drive VCSELs in order to minimize the power consumption. Both application-specific integrated circuits are designed in 0.13 m commercial complementary metal-o...

  15. Physical factors that influence patients’ privacy perception toward a psychiatric behavioral monitoring system: a qualitative study

    Science.gov (United States)

    Zakaria, Nasriah; Ramli, Rusyaizila

    2018-01-01

    Background Psychiatric patients have privacy concerns when it comes to technology intervention in the hospital setting. In this paper, we present scenarios for psychiatric behavioral monitoring systems to be placed in psychiatric wards to understand patients’ perception regarding privacy. Psychiatric behavioral monitoring refers to systems that are deemed useful in measuring clinical outcomes, but little research has been done on how these systems will impact patients’ privacy. Methods We conducted a case study in one teaching hospital in Malaysia. We investigated the physical factors that influence patients’ perceived privacy with respect to a psychiatric monitoring system. The eight physical factors identified from the information system development privacy model, a comprehensive model for designing a privacy-sensitive information system, were adapted in this research. Scenario-based interviews were conducted with 25 patients in a psychiatric ward for 3 months. Results Psychiatric patients were able to share how physical factors influence their perception of privacy. Results show how patients responded to each of these dimensions in the context of a psychiatric behavioral monitoring system. Conclusion Some subfactors under physical privacy are modified to reflect the data obtained in the interviews. We were able to capture the different physical factors that influence patient privacy. PMID:29343963

  16. Psychiatric morbidity following Hurricane Andrew.

    Science.gov (United States)

    David, D; Mellman, T A; Mendoza, L M; Kulick-Bell, R; Ironson, G; Schneiderman, N

    1996-07-01

    The nature of psychiatric morbidity in previously non-ill subjects from the area most affected by Hurricane Andrew was investigated at 6-12 months posthurricane. Preliminary associations of morbidity with personal and event-related risk factors were also determined. Fifty one percent (31/61) met criteria for a new-onset disorder, including posttraumatic stress disorder (PTSD) in 36%, major depression (MD) in 30%, and other anxiety disorders in 20%. Thirty four subjects (56%) had significant symptoms persisting beyond 6 months. Having sustained "severe damage" was the risk factor most strongly associated with outcome. Our data underscore the range of psychiatric morbidity related to a natural disaster, and suggest a relationship to chronic stressors.

  17. [Psychiatric emergencies in drug addiction].

    Science.gov (United States)

    Benyamina, Amine; Bouchez, Jacques; Rahioui, Hassan; Reynaud, Michel

    2003-06-01

    The practitioner is very frequently confronted by emergencies in drug-addicted patients also having psychiatric symptomatology. In this article the authors will address emergencies related to alcohol (notably intoxication, pre-DTs and the encephalopathies); emergencies related to cannabis (notably intoxication, psychotic states and panic attacks); and emergencies related to other psycho-active substances (overdoses, drug-withdrawal, psychiatric complications related to cocaine or amphetamines). In the domain of drug addiction, as in psychiatry, the practitioner must give as much importance to the organisation of the long-term healthcare plan for the drug addict, ulterior to the management of the immediate emergency. For example, whereas 90% of subjects presenting to the emergency department for acute alcoholic intoxication have a pathological consumption of alcohol (abuse or dependance), management of the alcoholism is proposed in only 2% of them.

  18. Dysfunctions in public psychiatric bureaucracies.

    Science.gov (United States)

    Marcos, L R

    1988-03-01

    The author describes common dysfunctions in public psychiatric organizations according to the model of bureaucracy articulated by Max Weber. Dysfunctions are divided into the categories of goal displacement, outside interference, unclear authority structure and hierarchy, and informal relations in the work place. The author emphasizes the bureaucratic nature of public psychiatry and the need for mental health professionals to understand the dysfunctions of the organizations in which they work, including the impact of these dysfunctions on the provision of quality care.

  19. Psychiatric Thoughts in Ancient India*

    OpenAIRE

    Ravi Abhyankar

    2015-01-01

    A review of the literature regarding psychiatric thoughts in ancient India is attempted. Besides interesting reading, many of the concepts are still relevant and can be used in day-to-day practice especially towards healthy and happy living. Certain concepts are surprisingly contemporary and valid today. They can be used in psychotherapy and counselling and for promoting mental health. However, the description and classification of mental illness is not in tune with modern psychiatry.

  20. Treatment Adherence in Psychiatric Disorders

    Directory of Open Access Journals (Sweden)

    Mehmet Emin Demirkol

    2016-03-01

    Full Text Available Despite developments in treatment options there is no significant increase in treatment adherence ratios. Inadherence in psychiatric disorders is higher than the other diseases. Loss of insight, drugs' side effects, sociodemographic features, personality traits are major factors affecting the treatment adherence. Determining and overcoming these factors for each disorder will help to improve adherence and reduce the treatment costs and hospitalization. [Psikiyatride Guncel Yaklasimlar - Current Approaches in Psychiatry 2016; 8(1: 85-93

  1. Psychiatric thoughts in ancient India.

    Science.gov (United States)

    Abhyankar, Ravi

    2015-01-01

    A review of the literature regarding psychiatric thoughts in ancient India is attempted. Besides interesting reading, many of the concepts are still relevant and can be used in day-to-day practice especially towards healthy and happy living. Certain concepts are surprisingly contemporary and valid today. They can be used in psychotherapy and counselling and for promoting mental health. However, the description and classification of mental illness is not in tune with modern psychiatry.

  2. Psychiatric Thoughts in Ancient India*

    Science.gov (United States)

    Abhyankar, Ravi

    2015-01-01

    A review of the literature regarding psychiatric thoughts in ancient India is attempted. Besides interesting reading, many of the concepts are still relevant and can be used in day-to-day practice especially towards healthy and happy living. Certain concepts are surprisingly contemporary and valid today. They can be used in psychotherapy and counselling and for promoting mental health. However, the description and classification of mental illness is not in tune with modern psychiatry. PMID:25838724

  3. Dissociative Experiences in Psychiatric Inpatients

    OpenAIRE

    Ali Firoozabadi; Nooshin Reza Alizadeh

    2016-01-01

    Dissociative disorders are conditions that involve disruptions of memory, awareness, identity, or perception. Data collected in diverse geographic locations underline the consistency in clinical symptoms of dissociative disorders. In this cross-sectional descriptive study, prevalence of dissociative experiences has been screened in hospitalized patients in psychiatric wards of Shiraz University of Medical Sciences in Iran. One hundred and sixty patients in two hospitals entered the study. Our...

  4. Design and evaluation of an online teaching strategy in an undergraduate psychiatric nursing course.

    Science.gov (United States)

    Mahoney, Jane S; Marfurt, Stephanie; daCunha, Miguel; Engebretson, Joan

    2005-12-01

    Psychiatric nurse educators are challenged to prepare graduates in meeting the needs of individuals with a mental illness within an increasingly technology-based environment. This requires the development and evaluation of educational strategies that immerse students in web-based learning. This article presents an overview of a hybrid teaching design that includes classroom teaching and asynchronous threaded discussion in a teaching module in an undergraduate psychiatric nursing course. Evaluation of student preferences, advantages and disadvantages, and learning, as well as qualitative evaluation of students' description of critical thinking, supports the value of online teaching in psychiatric nursing education.

  5. A contemporary case study illustrating the integration of health information technologies into the organisation and clinical practice of radiation oncology.

    Science.gov (United States)

    Miller, Alexis Andrew; Phillips, Aaron K

    2006-01-01

    The development of software in radiation oncology departments has seen the increase in capability from the Record and Verify software focused on patient safety to a fully-fledged Oncology Information System (OIS). This paper reports on the medical aspects of the implementation of a modern Oncology Information System (IMPAC MultiAccess, also known as the Siemens LANTIS) in a New Zealand hospital oncology department. The department was successful in translating paper procedures into electronic procedures, and the report focuses on the changes in approach to organisation and data use that occurred. The difficulties that were faced, which included procedural re-design, management of change, removal of paper, implementation cost, integration with the HIS, quality assurance and datasets, are highlighted along with the local solutions developed to overcome these problems.

  6. Psychiatric aspects of bariatric surgery

    Science.gov (United States)

    Yen, Yung-Chieh; Huang, Chih-Kuan; Tai, Chi-Ming

    2014-01-01

    Purpose of review Bariatric surgery has been consistently shown to be effective in long-term marked weight loss and in bringing significant improvement to medical comorbidities such as metabolic syndrome. Empirical data suggest a high prevalence of psychiatric disorders among bariatric surgery candidates. In this review, we focus on the studies published recently with a high impact on our understanding of the role of psychiatry in bariatric surgery. Recent findings This article reviews the specific psychopathologies before surgery, changes in psychopathologies after surgery, suicide risk related to bariatric surgery, factors associated with weight loss, and recommendations for presurgical and postsurgical assessment and management. Research indicates a decrease in certain psychiatric symptoms after weight loss with bariatric surgery. However, the risk of suicide and unsuccessful weight loss in some bariatric surgery patients make monitoring following surgery as important as careful assessment and management before surgery. Specific considerations for youth and older populations and future potential research foci are discussed. Summary Recent publications suggest new directions for psychiatric evaluation and interventions for bariatric surgery patients. Future research on outcomes of specific populations, effectiveness of psychopharmacotherapy, and underlying pathophysiology are warranted for the advancement of treating bariatric surgery patients. PMID:25036421

  7. Psychiatric trainees in Finland 2001.

    Science.gov (United States)

    Putkonen, Hanna; Holi, Matti; Kaltiala-Heino, Riittakerttu; Korkeila, Jyrki; Eronen, Markku

    2005-01-01

    This study examined Finnish psychiatric trainees' views on their education. This was a survey study of nationwide data on Finnish psychiatric trainees in 2001. The quality of training was considered at least moderate by 84% of the respondents. Training on epidemiology, on taking history and status, and on psychopharmacology was considered the best. Quality was rated bad for training in leadership and administration, and educating the community. Research was done by 20%, and a personal clinical supervisor was appointed to 52% of the respondents. Offensive treatment had been experienced by 49% of the trainees in this study. Generally, studies of training also reflect strengths and weaknesses of the profession. Based on our results, it seems especially that training in leadership and in educating the community need to be improved; both of these are quintessential skills to survive in the struggle for economic and human resources. Furthermore, treatment of the trainees could still be better; attention should be paid to supervision of all trainees. Moreover, research must become more attractive. Psychiatry can be developed by the development of psychiatric training.

  8. Development of beam halo monitors for the European XFEL using radiation hard sensors and demonstration of the technology at FLASH

    Energy Technology Data Exchange (ETDEWEB)

    Ignatenko, Alexandr

    2015-05-15

    The European X-Ray Free-Electron Laser (E-XFEL), currently under construction in Hamburg, Germany, is intended to be an international linear accelerator (linac) based user facility. Its electron beam can carry maximal average power of 600 kW. A beam with such a high power needs to be carefully transmitted through the machine and safely dumped after utilization. This is supported by various diagnostics tools. A Beam Halo Monitor (BHM) based on synthetic diamond and sapphire sensors has been designed. Diamond sensors are developed by the company element6 for the detection of ionizing radiation and used previously elsewhere. Sapphire sensors are in this thesis applied for the first time. The BHM concept has been applied already at the Free-electron Laser in Hamburg (FLASH). A module with four diamond and four sapphire sensors was designed, installed inside the beam pipe, commissioned, calibrated and has been successfully operated for 4 years. The system contributed significantly to safe and efficient operation of FLASH. Both types of the sensors for the BHM were characterized. Measurements of radiation tolerance are done in a 10 MeV electron beam for polycrystalline CVD (pCVD) diamond sensors for the first time up to a dose of 10 MGy and for sapphire sensors up to 5 MGy. The charge collection efficiency (CCE) drops as a function of the absorbed dose, is however still sufficient for application as a BHM. To improve a main sensor characteristic, the charge collection efficiency, for sapphire sensors the impurity concentration was reduced and different growth techniques were compared. Finally, charge collection efficiency of about 5 % for a bias voltage of 500 V was reached. The BHM concept for the XFEL is designed and in the construction phase.

  9. Proceedings of the symposium on the joint research project between JAERI and Universities. Status and perspective of the advanced radiation technology project

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-06-01

    This report describes the Proceedings of the Symposium on the Joint Research Project between JAERI and Universities -Status and Perspective of the Advanced Radiation Technology Project-, held at Tokyo on January 27, 1999. After a series of conferences which had been held at the second or third year to present the main activities of this unique collaborative project system, the symposium was particularly focused on critical reviewing of the project and on its future. The scientific papers presented were the recent achievements in the themes: 1) nuclear spectroscopy and nuclear materials science with an isotope separator on-line; 2) radiation shielding and nuclear data for use of accelerators; 3) materials analysis methods using ion beams; 4) microstructure in polymer materials irradiated with ions; 5) effects of transmutation products in fusion-reactor materials; 6) physiological study of plants using positron-emitting isotopes. The new theme titled 'Development and application of micro PIXE analysis in the atmospheric pressure' was proposed. Eight panelists discussed the future of the project. The 17 papers are indexed individually. (J.P.N.)

  10. Technology Risk Mitigation Research and Development for the Matter-Radiation Interactions in Extremes (MaRIE) Project

    Science.gov (United States)

    Barnes, Cris W.; Fernández, Juan; Hartsfield, Thomas; Sandberg, Richard; Sheffield, Richard; Tapia, John P.; Wang, Zhehui

    2017-06-01

    NNSA does not have a capability to understand and test the response of materials and conditions necessary to determine the linkages between microstructure of materials and performance in extreme weapons-relevant environments. Required is an x-ray source, coherent to optimize imaging capability, brilliant and high repetition-rate to address all relevant time scales, and with high enough energy to see into and through the amount of material in the middle or mesoscale where microstructure determines materials response. The Department of Energy has determined there is a mission need for a MaRIE Project to deliver this capability. There are risks to the Project to successfully deliver all the technology needed to provide the capability for the mission need and to use those photons to control the time-dependent production and performance of materials. The present technology risk mitigation activities for the MaRIE project are: developing ultrafast high-energy x-ray detectors, combining the data from several imaging probes to obtain multi-dimensional information about the sample, and developing techniques for bulk dynamic measurements of temperature. This talk will describe these efforts and other critical technology elements requiring future investment by the project.

  11. Applications of ionizing radiations

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2014-07-01

    Developments in standard applications and brand new nuclear technologies, with high impact on the future of the agriculture, medicine, industry and the environmental preservation. The Radiation Technology Center (CTR) mission is to apply the radiation and radioisotope technologies in Industry, Health, Agriculture, and Environmental Protection, expanding the scientific knowledge, improving human power resources, transferring technology, generating products and offering services for the Brazilian society. The CTR main R and D activities are in consonance with the IPEN Director Plan (2011-2013) and the Applications of Ionizing Radiation Program, with four subprograms: Irradiation of Food and Agricultural Products; Radiation and Radioisotopes Applications in Industry and Environment; Radioactive Sources and Radiation Applications in Human Health; and Radioactive Facilities and Equipment for the Applications of Nuclear Techniques.

  12. Exposure to space radiation of high-performance infrared multilayer filters and materials technology experiments (A0056)

    Science.gov (United States)

    Seeley, J. S.; Hunneman, R.; Whatley, A.; Lipscombe, D. R.

    1984-01-01

    Infrared multilayer interface filter which were used in satellite radiometers were examined. The ability of the filters to withstand the space environment in these applications is critical. An experiment on the LDEF subjects the filters to authoritative spectral measurements following space exposure to ascertain their suitability for spacecraft use and to permit an understanding of degradation mechanisms. The understanding of the effects of prolonged space exposure on spacecraft materials, surface finishes, and adhesive systems is important to the spacecraft designer. Materials technology experiments and experiment on infrared multilayer filters are discussed.

  13. Influence of Institutional Experience and Technological Advances on Outcome of Stereotactic Body Radiation Therapy for Oligometastatic Lung Disease.

    Science.gov (United States)

    Rieber, Juliane; Abbassi-Senger, Nasrin; Adebahr, Sonja; Andratschke, Nicolaus; Blanck, Oliver; Duma, Marciana; Eble, Michael J; Ernst, Iris; Flentje, Michael; Gerum, Sabine; Hass, Peter; Henkenberens, Christoph; Hildebrandt, Guido; Imhoff, Detlef; Kahl, Henning; Klass, Nathalie Desirée; Krempien, Robert; Lohaus, Fabian; Lohr, Frank; Petersen, Cordula; Schrade, Elsge; Streblow, Jan; Uhlmann, Lorenz; Wittig, Andrea; Sterzing, Florian; Guckenberger, Matthias

    2017-07-01

    Many technological and methodical advances have made stereotactic body radiotherapy (SBRT) more accurate and more efficient during the last years. This study aims to investigate whether experience in SBRT and technological innovations also translated into improved local control (LC) and overall survival (OS). A database of 700 patients treated with SBRT for lung metastases in 20 German centers between 1997 and 2014 was used for analysis. It was the aim of this study to investigate the impact of fluorodeoxyglucose positron-emission tomography (FDG-PET) staging, biopsy confirmation, image guidance, immobilization, and dose calculation algorithm, as well as the influence of SBRT experience, on LC and OS. Median follow-up time was 14.3 months (range, 0-131.9 months), with 2-year LC and OS of 81.2% (95% confidence interval [CI] 75.8%-85.7%) and 54.4% (95% CI 50.2%-59.0%), respectively. In multivariate analysis, all treatment technologies except FDG-PET staging did not significantly influence outcome. Patients who received pre-SBRT FDG-PET staging showed superior 1- and 2-year OS of 82.7% (95% CI 77.4%-88.6%) and 64.8% (95% CI 57.5%-73.3%), compared with patients without FDG-PET staging resulting in 1- and 2-year OS rates of 72.8% (95% CI 67.4%-78.8%) and 52.6% (95% CI 46.0%-60.4%), respectively (P=.012). Experience with SBRT was identified as the main prognostic factor for LC: institutions with higher SBRT experience (patients treated with SBRT within the last 2 years of the inclusion period) showed superior LC compared with less-experienced centers (P≤.001). Experience with SBRT within the last 2 years was independent from known prognostic factors for LC. Investigated technological and methodical advancements other than FDG-PET staging before SBRT did not significantly improve outcome in SBRT for pulmonary metastases. In contrast, LC was superior with increasing SBRT experience of the individual center. Copyright © 2016 Elsevier Inc. All rights reserved.

  14. Radiation and Background Levels in a CLIC Detector due to Beam-Beam Effects Optimisation of Detector Geometries and Technologies

    CERN Document Server

    Sailer, André; Lohse, Thomas

    2013-01-10

    The high charge density---due to small beam sizes---and the high energy of the proposed CLIC concept for a linear electron--positron collider with a centre-of-mass energy of up to 3~TeV lead to the production of a large number of particles through beam-beam interactions at the interaction point during every bunch crossing (BX). A large fraction of these particles safely leaves the detector. A still significant amount of energy will be deposited in the forward region nonetheless, which will produce secondary particles able to cause background in the detector. Furthermore, some particles will be created with large polar angles and directly cause background in the tracking detectors and calorimeters. The main sources of background in the detector, either directly or indirectly, are the incoherent $mathrm{e}^{+}mathrm{e}^{-}$ pairs and the particles from $gammagamma ightarrow$ hadron events. The background and radiation levels in the detector have to be estimated, to study if a detector is feasible, that can han...

  15. Development of novel immunogens on the hypersensitivity induced proteins by the combination of radiation technology and biotechnology

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Ju Woon; Byun, Myung Woo; Kim, Jae Hun; Seo, Ji Hyun

    2006-01-15

    The irradiated house dust mite allergen showed the conformational change with disappearance of major allergen and aggregation to higher molecular weights. The irradiated house dust mite allergens showed the change of epitope from results of the reduction of binding ability of house dust mite-allergic patients' serum (IgE) and polyclonal rabbit IgG against the irradiated allergens. In assessment of immunogenicity and allergenicity, irradiated house dust mite allergen showed the reduction of allergenicity with decrease of concentration for IL-4 and IL-5, the cytokine inducing allergy. For the assessment of the possibility as therapeutic immunogen of irradiated house dust mite allergen, allergic induced-mouse model were established. Irradiated allergen showed the maintainment of immunogenicity and the reduction of allergenicity from the result of maintain of IgG and reduction of IgE. Blue spots against irradiated allergen decreased raising with radiation dose in passive cutaneous anaphylaxis. The therapeutic effect was measured by reduction of house dust mite-specific IgE, IL-4 and IL-5. Induction of allergy after immunization of irradiated house dust mite allergen decreased by the reduction of house dust mite-specific IgE and IL-4 release. Therefore, house dust mite allergen modified by irradiation could be used as an effective immunogens for the prevention and treatment of allergy.

  16. Empirical evidence of the effectiveness of concept mapping as a learning intervention for nuclear medicine technology students in a distance learning radiation protection and biology course.

    Science.gov (United States)

    Passmore, Gregory G; Owen, Mary Anne; Prabakaran, Krishnan

    2011-12-01

    Metacognitive learning strategies are based on instructional learning theory, which promotes deep, meaningful learning. Educators in a baccalaureate-level nuclear medicine technology program demonstrated that students enrolled in an online, distance learning section of an introductory radiation protection and radiobiology course performed better when traditional instruction was supplemented with nontraditional metacognitive learning strategies. The metacognitive learning strategy that was used is best known as concept mapping. The concept map, in addition to the standard homework problem assignment and opportunity for question-answer sessions, became the template for misconception identification and remediation interactions between the instructor and the student. The control group relied on traditional homework problems and question-answer sessions alone. Because students in both the "treatment" groups (i.e., students who used concept mapping) and the control group were distance learning students, all personal communications were conducted via e-mail or telephone. The final examination of the course was used to facilitate a quantitative comparison of the performance of students who used concept mapping and the performance of students who did not use concept mapping. The results demonstrated a significantly higher median final examination score for the concept mapping group than for the non-concept mapping group (z = -2.0381, P = 0.0415), with an appropriately large effect size (2.65). Concept mapping is a cognitive learning intervention that effectively enables meaningful learning and is suitable for use in the independent learner-oriented distance learning environments used by some nuclear medicine technology programs.

  17. Psychiatric diagnosis in legal settings

    Directory of Open Access Journals (Sweden)

    Alfred Allan

    2005-12-01

    Full Text Available When asked to give a diagnosis in legal settings practitioners should be mindful of the tentative nature of psychiatric diag- noses and that courts require that such a diagnosis must have scientific credibility. South African courts are not explicit about the test they will apply to determine whether a diagno- sis is scientifically credible, but some guidance can be found in United States case law. This paper examines these criteria with reference to the disorders included in the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV-TR.

  18. Psychiatric specialty training in Greece.

    Science.gov (United States)

    Margariti, M; Kontaxakis, V; Ploumpidis, D

    2017-01-01

    The reform and development of psychiatric services require, in addition to financial resources, reserves in specialized human resources. The role of psychiatrists in this process, and at reducing the consequences of mental morbidity is evident. Psychiatrists are required to play a multifaceted role as clinicians, as experts in multidisciplinary team environments and as advisors in the recognition of public needs in mental health issues, as teachers and mentors for students and other health professionals, as researchers in order to enrich our knowledge in the scientific field of psychiatry, and as public health specialists in the development of the mental health services system. This multifaceted role requires the continuous education of modern psychiatrists, but above all a broad, substantial and comprehensive training regime in the initial stage of their professional career, that is to say during specialization. Training in Psychiatry, as indeed has happened in all other medical specialties, has evolved considerably in recent decades, both in the content of education due to scientific advances in the fields of neurobiology, cognitive neuroscience, genetics, psychopharmacology, epidemiology and psychiatric nosology, and also because of advances in the educational process itself. Simple apprenticeship next to an experienced clinician, despite its importance in the clinical training of young psychiatrists, is no longer sufficient to meet the increased demands of the modern role of psychiatrists, resulting in the creation of educational programs defined by setting and pursuing minimum, though comprehensive educational objectives. This development has created the global need to develop organizations intended to supervise training programs. These organizations have various forms worldwide. In the European Union, the competent supervising body for medical specialties is the UEMS (European Union of Medical Specialities) and particularly in the case of the psychiatric

  19. Cultural relativism and psychiatric illness.

    Science.gov (United States)

    Fabrega, H

    1989-07-01

    Psychiatry has had a long-standing association with sociology and, especially, cultural anthropology. These social sciences have been influential in developing the concept of cultural relativism and applying it to psychiatry, sometimes in a challenging way and with much detriment. The concept has been used by some antipsychiatrists in attempts to discredit psychiatric practice. Contemporary psychiatrists endorsing a form of biological determinism have tended to either disregard the concept or judge it as trivial if not nonsensical. This study describes the concept of cultural relativism, reviews its applications to illness, and analyzes its implications from a historical and theoretical point of view. Its varied aspects, power, and limitations are discussed.

  20. [Gender aspects of psychiatric publications].

    Science.gov (United States)

    Freidl, Marion; Unger, Annemarie; Vyssoki, Benjamin; Wancata, Johannes

    2010-01-01

    Are authors of German language psychiatric journals more often male or female? Are there gender differences regarding scientific topics? Analysis of publications of two German-language journals (Neuropsychiatrie, Psychiatrische Praxis) for the period 2008-2009. We could not find any gender differences concerning the number of first authors, but the number of male co-authors was nearly double as high as of female co-authors. Qualitative research methods were used more often by female researchers, but there were no significant differences regarding scientific topics. Overall, we found fewer gender differences than expected concerning authorship.

  1. Psychiatric sequelae of traumatic brain injury

    Directory of Open Access Journals (Sweden)

    Suprakash Chaudhury

    2013-01-01

    Full Text Available Almost half of the people suffering traumatic brain injury (TBI may later be diagnosed with psychiatric disorders. The literature (PubMed, IndMed of past 30 years on psychiatric disturbances associated with TBI is reviewed. The authors highlight the close link between head injury and psychiatry and provide an overview of the epidemiology, risk-factors, and mechanisms of psychiatric sequelae including, cognitive deficits, substance abuse, psychoses, mood disorders, suicide, anxiety disorders, dissociative disorders, post-concussion syndrome, and personality changes following head injury. The various psychiatric sequelae are briefly discussed.

  2. Approaches to psychiatric nosology: A viewpoint

    National Research Council Canada - National Science Library

    Avasthi, Ajit; Sarkar, Siddharth; Grover, Sandeep

    2014-01-01

    Psychiatric nosology is required for communication among clinicians and researchers, understanding etiology, testing treatment efficacy, knowing the prevalence of the problems and disorders, health...

  3. Legal duties of psychiatric patients.

    Science.gov (United States)

    Beahrs, J O

    1990-01-01

    Psychiatric practice involves an implied contract in which each party fulfills a specialized role and incurs corresponding duties and obligations to be discharged as best able. Patients incur duties at three levels. First are specific duties that arise from patients' specialized role in their own health care: (1) to provide accurate and complete information, and (2) to cooperate with treatment within the bounds of informed consent. Second are general duties that apply to all citizens, but are especially relevant within the mental health context: (1) to respect the physical integrity of self, others, and property, and (2) to obey the law. The controversial "duty to protect" is at a third level, a transcendent duty that is specific to the context at hand, but in principle can apply to more than one party. Advantages of enforcing patients' duties include better care by treating professionals, optimum level of functioning of patients, and improved systems-wide morale and safety. Breach of patients' duty has many potential consequences in the forensic sphere: termination of care, malpractice defense, criminal prosecution, and tort liability. Complicating factors include the degree and effect of patients' psychiatric impairment, patients' legal status, and the role played by psychotherapeutic transference.

  4. Psychotherapy in Contemporary Psychiatric Practice

    Science.gov (United States)

    Hadjipavlou, George; Hernandez, Carlos A Sierra; Ogrodniczuk, John S

    2015-01-01

    Objective: American data suggest a declining trend in the provision of psychotherapy by psychiatrists. Nevertheless, the extent to which such findings generalize to psychiatric practice in other countries is unclear. We surveyed psychiatrists in British Columbia to examine whether the reported decline in psychotherapy provision extends to the landscape of Canadian psychiatric practice. Method: A survey was mailed to the entire population of fully licensed psychiatrists registered in British Columbia (n = 623). The survey consisted of 30 items. Descriptive statistics were used to characterize the sample and psychotherapy practice patterns. Associations between variables were evaluated using nonparametric tests. Results: A total of 423 psychiatrists returned the survey, yielding a response rate of 68%. Overall, 80.9% of psychiatrists (n = 342) reported practicing psychotherapy. A decline in the provision of psychotherapy was not observed; in fact, there was an increase in psychotherapy provision among psychiatrists entering practice in the last 10 years. Individual therapy was the predominant format used by psychiatrists. The most common primary theoretical orientation was psychodynamic (29.9%). Regarding actual practice, supportive psychotherapy was practiced most frequently. Professional time constraints were perceived as the most significant barrier to providing psychotherapy. The majority (85%) of clinicians did not view remuneration as a significant barrier to treating patients with psychotherapy. Conclusions: Our findings challenge the prevailing view that psychotherapy is in decline among psychiatrists. Psychiatrists in British Columbia continue to integrate psychotherapy and pharmacotherapy in clinical practice, thus preserving their unique place in the spectrum of mental health services. PMID:26175328

  5. Time Perception and Psychiatric Disorders

    Directory of Open Access Journals (Sweden)

    Hatice Ceviz

    2013-09-01

    Full Text Available Time perception is an ability which we use in every moment of daily life, that guides the formation and continuation of our behaviors and from an evolutionary perspective ensures survival. Internal clock models help us to understand time perception. Time perception is known to vary between individuals and particular situations. This variability is explained with the mechanisms which is associated with the processes related to attention, the speed of the internal clock and the memory unit. It is suggested that time perception is mainly associated with the activities of dopamine and acetylcholine. Some dopaminergic psychoactive substances like cocaine and amphetamine have all been shown to change time perception by increasing the speed of internal clock while on the other hand some antipsychotic drugs make an opposite change in time perception by descreasing the speed of the clock. Similarly, time perception is affected in some psychiatric disorders and an ethiopathological relationship between time perception disturbances and psychiatric disorders is suggested. In this article time perception changes in schizophrenia, attention deficit/hyperactivity syndrome, depression, anxiety disorders and personality disorders are briefly reviewed.

  6. [Compulsive buying and psychiatric comorbidity].

    Science.gov (United States)

    Mueller, Astrid; Mühlhans, Barbara; Silbermann, Andrea; Müller, Ulrike; Mertens, Christian; Horbach, Thomas; Mitchell, James E; de Zwaan, Martina

    2009-08-01

    Compulsive buying is an excessive behavior that has begun to receive attention from researchers in recent years. The current study provides an overview of research on compulsive buying and examines the psychiatric co-morbidity in a German female treatment seeking compulsive buying sample in comparison with age and gender-matched normal buying control groups. Thirty women suffering from compulsive buying disorder, 30 community controls, and 30 bariatric surgery candidates were assessed with the German versions of the Structured Clinical Interview for DSM-IV diagnoses (SCID). Women with compulsive buying disorder showed significantly higher prevalence rates of affective, anxiety, and eating disorders compared to community controls, and suffered significantly more often from affective and anxiety disorders compared to bariatric surgery candidates. The compulsive buying group presented with the highest rates of personality disorders, most commonly avoidant, depressive, obsessive-compulsive, and borderline personality disorder, and reported the highest prevalence rates of other impulse control disorders, especially for intermittent explosive disorder. The findings suggest an elevated psychiatric co-morbidity in patients with compulsive buying disorder.

  7. Face processing in psychiatric conditions.

    Science.gov (United States)

    Archer, J; Hay, D C; Young, A W

    1992-02-01

    Functional models of face processing have indicated that dissociations exist between the various processes involved, e.g. between familiar face recognition and matching of unfamiliar faces, and between familiar face recognition and facial expression analysis. These models have been successfully applied to the understanding of the different types of impairment that can exist in neuropsychological patients. In the present study, aspects of face processing in psychiatric patients were investigated in relation to Bruce & Young's (1986) model. Based on this functional model different predictions can be made. We contrast here the impaired expression analysis hypothesis, which is that psychiatric patients would show a deficit in facial expression recognition, but not in facial identity recognition or unfamiliar face matching, with the generalized deficit hypothesis, that patients would be impaired on all tasks. These hypotheses were examined using three forced-choice tasks (facial recognition, facial expression recognition, and unfamiliar face matching) which were presented to schizophrenic and depressed patients, and to non-patient controls. Results showed that schizophrenic patients performed at a significantly lower level than non-patient controls on all three tasks, supporting the generalized deficit hypothesis.

  8. Epigenetic signaling in psychiatric disorders.

    Science.gov (United States)

    Peña, Catherine J; Bagot, Rosemary C; Labonté, Benoit; Nestler, Eric J

    2014-10-09

    Psychiatric disorders are complex multifactorial illnesses involving chronic alterations in neural circuit structure and function. While genetic factors are important in the etiology of disorders such as depression and addiction, relatively high rates of discordance among identical twins clearly indicate the importance of additional mechanisms. Environmental factors such as stress or prior drug exposure are known to play a role in the onset of these illnesses. Such exposure to environmental insults induces stable changes in gene expression, neural circuit function, and ultimately behavior, and these maladaptations appear distinct between developmental and adult exposures. Increasing evidence indicates that these sustained abnormalities are maintained by epigenetic modifications in specific brain regions. Indeed, transcriptional dysregulation and associated aberrant epigenetic regulation is a unifying theme in psychiatric disorders. Aspects of depression and addiction can be modeled in animals by inducing disease-like states through environmental manipulations (e.g., chronic stress, drug administration). Understanding how environmental factors recruit the epigenetic machinery in animal models reveals new insight into disease mechanisms in humans. Copyright © 2014 Elsevier Ltd. All rights reserved.

  9. Stigmatization of psychiatric symptoms and psychiatric service use: a vignette-based representative population survey.

    Science.gov (United States)

    Sowislo, Julia F; Lange, Claudia; Euler, Sebastian; Hachtel, Henning; Walter, Marc; Borgwardt, Stefan; Lang, Undine E; Huber, Christian G

    2017-06-01

    Background There is evidence for two different types and/or sources of mental illness stigma, namely the display of psychiatric symptoms and the use of psychiatric service institutions. However, no current study has compared the two. Furthermore, gaps exist in our knowledge of both types of stigma. Little is known about the perceived stigma of specific psychiatric service treatment environments, for instance forensic settings. In addition, systematic research on stigma attached to symptoms of personality disorders in the general population is scarce, and for borderline personality disorder, nonexistent. Methods We conducted a representative survey of the general population (N = 2207) in the canton of Basel-Stadt, Switzerland. Participants were asked to read a vignette depicting either the psychiatric symptoms of a fictitious character or a psychiatric service institution to which the character had been admitted, and indicate desired social distance (an indicator for stigma). Type of symptoms, type of psychiatric service, dangerousness, and gender were systematically varied between vignettes. Findings Desired social distance was significantly lower in relation to psychiatric service use than to psychiatric symptoms. Overall, symptoms of alcohol dependency, behavior endangering others, and the fictitious character's being male tend to increase stigmatization. Interestingly, the character's being hospitalized in a psychiatric unit at a general hospital and also respondent familiarity with psychiatric services tend to decrease stigmatization. Interpretation Familiarity of the general population with psychiatric patients should be increased. Furthermore, treatment in psychiatric units located within general hospitals should be promoted, as such treatment is associated with decreased stigma.

  10. ASD, a Psychiatric Disorder, or Both? Psychiatric Diagnoses in Adolescents with High-Functioning ASD

    Science.gov (United States)

    Mazefsky, Carla A.; Oswald, Donald P.; Day, Taylor N.; Eack, Shaun M.; Minshew, Nancy J.; Lainhart, Janet E.

    2012-01-01

    Varied presentations of emotion dysregulation in autism complicate diagnostic decision making and may lead to inaccurate psychiatric diagnoses or delayed autism diagnosis for high-functioning children. This pilot study aimed to determine the concordance between prior psychiatric diagnoses and the results of an autism-specific psychiatric interview…

  11. History of the Nordic psychiatric cooperation.

    Science.gov (United States)

    von Knorring, Lars

    2012-03-01

    The Nordic countries include Denmark, Finland, Iceland, Norway and Sweden as well the Faroe Islands, Greenland, Svalbard and Åland. The countries share much common history as well as common traits in their respective societies. As early as 1906, a Scandinavian Psychiatric Association was suggested. The first Nordic Psychiatric Congress was held in Copenhagen 1913. After the First World War, at the 6th Nordic Psychiatric Congress in Stockholm 1935, a Nordic Psychiatric Association was founded and it was decided that a Nordic Journal of Psychiatry should be founded. After the Second World War, at the 8th Nordic Psychiatric Congress in Copenhagen 1946, the Nordic Psychiatric Association was terminated. At this time, the most important task of the Association, to found a Nordic Journal of Psychiatry, had been achieved. After 1946, there has been a close cooperation between the Nordic countries but no common Nordic Psychiatric Association. Today, the Nordic Psychiatric Cooperation is active and ongoing. The 30th Nordic Psychiatric Congress is scheduled to be held in Tromsö, in 2012. The Nordic Journal of Psychiatry is publishing its 64 th volume. The Journal is indexed in the important international databases and the impact factor is increasing. The Joint Committee of the Nordic psychiatric associations has established itself as the owner of the Journal and the organizer of the congresses. There are also a series of Nordic cooperations in a series of different fields, such as the Scandinavian Societies of Biological Psychiatry, the Scandinavian College of Neuropsychopharmacology (SCNP), the bi-annual Nordic Psychoanalytical Congresses, the Scandinavian Psychoanalytic Review, the Nordic Association of Psychiatric Epidemiology, NAPE, and so on.

  12. Clinical features and psychiatric comorbidity of epicrania fugax

    Directory of Open Access Journals (Sweden)

    K Rammohan

    2018-01-01

    Full Text Available Background: Epicrania fugax (EF is a rare newly described primary headache characterized by paroxysms of unilateral pain radiating across one hemicranium. Aim: We aimed to describe 10 new cases of EF and assess the psychiatric comorbidity. Materials and Methods: Cases of EF were identified from patients attending the neurology outpatient department of a tertiary level referral and teaching hospital by the first author during a period extending from January 1, 2015 to April 31, 2017. Case ascertainment was done as per ICHD 3 beta criteria from among patients presenting with complaints of headache after detailed history and clinical examination. Clinical and demographic features were noted and patients were subjected to Mini Neuropsychiatric Interview to screen for psychiatric comorbidity followed by Becks Anxiety/Depression Inventory. Results: A total of 10 subjects were obtained during the study period, 4 males, and 6 females. Mean age of subjects was 45.3 years (standard deviation-10. Seventy percent had anteroposterior, and 30% had posteroanterior radiation of pain. The most common character of pain was stabbing (50% followed by electrical (40% and pressing (10%. None of the subjects had autonomic symptoms or focal symptoms in the scalp while 30% subjects had hyperesthesia in the affected area of the scalp.Six subjects (60% patients had episodic course while 40% had chronic course. Sixty percent had comorbid anxiety while one (10% had comorbid depression. A significant relation was obtained between duration of disease and occurrence of anxiety as well as Becks Anxiety Inventory scores while there was no correlation with attack duration. There was also a nonsignificant correlation between visual analog score and occurrence of anxiety symptoms. Conclusions: Our study conclusively proves the existence of EF as a rare, distinct primary headache syndrome in our study population. It has a significant psychiatric comorbidity consisting of 60% of

  13. Radiation`96. Conference handbook

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-12-31

    The conference program includes eight invited lectures which cover a range of contemporary topics in radiation science and technology. In addition, thirty-two oral papers were presented, along with forty-five posters. The conference handbook contains one-page precis or extended abstracts of all presentations, and is a substantial compendium of current radiation research in Australia.

  14. Abuse Characteristics and Psychiatric Consequences Associated with Online Sexual Abuse.

    Science.gov (United States)

    Say, Gökçe Nur; Babadağı, Zehra; Karabekiroğlu, Koray; Yüce, Murat; Akbaş, Seher

    2015-06-01

    The current study examined the rate and psychiatric correlates of sexual abuse involving the use of digital technologies by the offender in a wide sample of juvenile victims. Sociodemographic, abuse, and psychiatric characteristics of 662 sexually abused children and adolescents were evaluated. Of these, 93 reported that digital devices were used by the offender in several ways to facilitate the sexual abuse. The offender-victim relationship was initiated through the Internet in 39 victims. Involvement of digital technologies in sexual abuse was significantly associated with penetrative and recurrent form of sexual abuse commited by multiple offenders with coexisting violence. Additionally, victims of sexual abuse with a digital component were 4.21 times more likely to develop any psychopathology, 3.77 times more likely to have depression, and 2.14 times more likely to have post-traumatic stress disorder as a result of sexual abuse. These results indicated that the offender's use of digital technology may aid the initiation and facilitation of the sexual abuse of youths and may relate to more severe outcomes. This study revealed the importance of raising the awareness of professionals and the community about the potential risks associated with digital technologies and sexual abuse. Mental health professionals should consider this additional form of victimization, especially when dealing with sexual abuse victims.

  15. Psychiatric sequelae of traumatic brain injury: Retrospective ...

    African Journals Online (AJOL)

    2011-12-23

    Dec 23, 2011 ... Objective: Traumatic brain injury (TBI) is a public health problem and is associated with many complications. However little is known about the psychiatric sequelae of TBI in Nigeria. This study described the pattern and determinants of psychiatric sequelae among subjects with TBI. Materials and Methods: ...

  16. Human Immunodeficiency Virus Infection among Psychiatric ...

    African Journals Online (AJOL)

    Background: Psychiatric patients are considered high risked group for Human immunodeficiency virus (HIV) infection. This has been found to be as a result of poor judgment and irrationality associated with some of the disorders. However, there is dearth of literature on the prevalence of HIV infection among psychiatric ...

  17. Psychiatric sequelae of traumatic brain injury: Retrospective ...

    African Journals Online (AJOL)

    Information obtained included the sociodemographic characteristics, type of injury, durations of unconsciousness (LOC) and posttraumatic amnesia (PTA), psychiatric and psychoactive substance use history. Psychiatric diagnosis was based on the criteria of the 10th edition of the International Classification of Diseases ...

  18. Exploring the perceptions of psychiatric patients regarding ...

    African Journals Online (AJOL)

    2012-03-13

    Mar 13, 2012 ... recommendations for nursing education, nursing research and nursing practice, with the aim of reducing the readmission of ... impairment of memory, concentration, motivation, self- esteem, relationships with others and ..... at increasing nursing students' and psychiatric nurses' insight about psychiatric ...

  19. Exploring the perceptions of psychiatric patients regarding ...

    African Journals Online (AJOL)

    The purpose of this study was to explore and describe the perceptions of psychiatric patients with regard to marijuana use in Potchefstroom, North West Province, as well as to formulate recommendations for nursing education, nursing research and nursing practice, with the aim of reducing the readmission of psychiatric ...

  20. Smartphone apps as a new psychiatric treatment

    DEFF Research Database (Denmark)

    Dalum, Anette Ellegaard; Arnfred, Sidse Marie

    2014-01-01

    Søg 1 - 1 ud af 1 Smartphone apps as a new psychiatric treatment. Anette Ellegaard Dalum, Sidse Arnfred, 2014, vol. 176, nummer 34, 2014. Ugeskrift for laeger Artikel Importer Fjern......Søg 1 - 1 ud af 1 Smartphone apps as a new psychiatric treatment. Anette Ellegaard Dalum, Sidse Arnfred, 2014, vol. 176, nummer 34, 2014. Ugeskrift for laeger Artikel Importer Fjern...

  1. Establishment of a local psychiatric service

    DEFF Research Database (Denmark)

    Wang, A G

    1981-01-01

    of senile psychoses. The total increase amounts to 2.4 times the admission rates of psychiatric cases to the General Hospital and 4.4 times the admission rates to the Psychiatric Hospital in Nykøbing in the last years prior to the start of the local service. The outpatient department has grown steadily...

  2. PSYCHIATRIC MORBIDITY AMONG CHILDREN AND YOUNG ...

    African Journals Online (AJOL)

    Kateee

    2003-06-06

    Jun 6, 2003 ... Objectives: To estimate the prevalence and pattern of psychiatric disorders among children and young persons appearing in .... by a computer using the Statistical Package for Social. Sciences (SPSS) Version 8.0 and a ..... for further psychiatric assessment and treatment as necessary. The Juvenile court ...

  3. Sleep in Children With Psychiatric Disorders.

    Science.gov (United States)

    Ramtekkar, Ujjwal; Ivanenko, Anna

    2015-06-01

    Sleep disturbances are common in pediatric psychiatric disorders and constitute key elements in diagnostic symptomatology of various primary psychiatric disorders including bipolar disorder, depression, and anxiety disorder. Although sleep is not included in key defining criteria of some impairing illnesses such as obsessive-compulsive disorder and schizophrenia, these disorders present with a very high prevalence of sleep disturbances. The interaction between sleep and psychopathology is very complex with significant interrelationship in development, severity, and prognosis of psychiatric disorders and comorbid sleep disturbances. The research ranging from small intervention case series to large epidemiologic studies have demonstrated the role of specific sleep complaints in specific psychiatric diagnoses. However, the research using objective instruments such as polysomnography and actigraphy remains limited in youth with psychiatric disorders. The intervention studies using pharmaceutical treatment specifically focusing on sleep disturbances in psychiatric disorders are also sparse in the pediatric literature. Early identification of sleep disturbances and behavioral management using cognitive behavior therapy-based tools appear to be the most effective approach for treatment. The use of psychotropic medications such as selective serotonin reuptake inhibitors for the treatment of primary psychiatric disorder often alleviate the psychological barriers for sleep but may lead to emergence of other sleep issues such as restless leg syndrome. The safety and efficacy data of hypnotics for primary sleep disorders are limited in pediatrics and should be avoided or used with extreme caution in children with comorbid sleep and psychiatric problems. Copyright © 2015 Elsevier Inc. All rights reserved.

  4. Perceived sleep quality of psychiatric patients

    NARCIS (Netherlands)

    de Niet, G. J. (Gerrit); Tiemens, B. G. (Bea); Lendemeijer, H. H. G. M. (Bert); Hutschemaekers, G. J. M. (Giel)

    This paper aims at acquiring knowledge about the quality of sleep of adult and elderly psychiatric patients who receive clinical or outpatient nursing care, and identifying key factors in perceiving a sleep problem. To do so, a sample of 1699 psychiatric patients were asked whether they perceived a

  5. Psychiatric disorders of patients seeking obesity treatment

    Directory of Open Access Journals (Sweden)

    Lin Hung-Yen

    2013-01-01

    Full Text Available Abstract Background Obese and overweight people have a higher risk of both chronic physical illness and mental illness. Obesity is reported to be positively associated with psychiatric disorders, especially in people who seek obesity treatment. At the same time, obesity treatment may be influenced by psychological factors or personality characteristics. This study aimed to understand the prevalence of mental disorders among ethnic Chinese who sought obesity treatment. Methods Subjects were retrospectively recruited from an obesity treatment center in Taiwan. The obesity treatments included bariatric surgery and non-surgery treatment. All subjects underwent a standardized clinical evaluation with two questionnaires and a psychiatric referral when needed. The psychiatric diagnosis was made thorough psychiatric clinic interviews using the SCID. A total of 841 patients were recruited. We compared the difference in psychiatric disorder prevalence between patients with surgical and non-surgical treatment. Results Of the 841 patients, 42% had at least one psychiatric disorder. Mood disorders, anxiety disorders and eating disorders were the most prevalent categories of psychiatric disorders. Females had more mood disorders and eating disorders than males. The surgical group had more binge-eating disorder, adjustment disorder, and sleep disorders than the non-surgical group. Conclusion A high prevalence of psychiatric disorders was found among ethnic Chinese seeking obesity treatment. This is consistent with study results in the US and Europe.

  6. Psychiatric disorders and urbanization in Germany

    NARCIS (Netherlands)

    Dekker, J.J.M.; Peen, J.; Koelen, J.A.; Smit, H.F.E.; Schoevers, R.A.

    2008-01-01

    Background. Epidemiological studies over the last decade have supplied growing evidence of an association between urbanization and the prevalence of psychiatric disorders. Our aim was to examine the link between levels of urbanization and 12-month prevalence rates of psychiatric disorders in a

  7. Psychiatric disorders and urbanization in Germany

    NARCIS (Netherlands)

    Dekker, J.J.M.; Peen, J.; Koelen, J.A.; Smit, H.F.E.; Schoevers, R.A.

    2008-01-01

    Abstract Background Epidemiological studies over the last decade have supplied growing evidence of an association between urbanization and the prevalence of psychiatric disorders. Our aim was to examine the link between levels of urbanization and 12-month prevalence rates of psychiatric disorders in

  8. determining treatment levels of comorbid psychiatric conditions

    African Journals Online (AJOL)

    SITWALA COMPUTERS

    ABSTRACT. Background: Psychiatric co-morbidities occur more frequently in patients with epilepsy but are usually under- treated. Treatment of these disorders is key to reducing mortality via suicide and other causes. This study determined the levels of treatment of psychiatric co- morbidities at clinics in Lusaka, Zambia.

  9. Exploring the perceptions of psychiatric patients regarding ...

    African Journals Online (AJOL)

    2012-03-13

    Mar 13, 2012 ... of reducing the readmission of psychiatric patients following marijuana-induced psychosis. A qualitative ... The findings of this study include perceptions of psychiatric patients on the use of marijuana, the negative effects of marijuana .... to the nursing body of knowledge that cannot be obtained by any other ...

  10. Psychiatric disorders in women with fertility problems

    DEFF Research Database (Denmark)

    Baldur-Felskov, Birgitte; Kjaer, S K; Albieri, V

    2013-01-01

    Do women who don't succeed in giving birth after an infertility evaluation have a higher risk of psychiatric disorders compared with women who do?......Do women who don't succeed in giving birth after an infertility evaluation have a higher risk of psychiatric disorders compared with women who do?...

  11. Inappropriate involuntary admissions to psychiatric hospitals | van ...

    African Journals Online (AJOL)

    Inappropriate involuntary admissions to psychiatric hospitals. P L van der Merwe, A Allan, M M Allan. Abstract. Background. In order to preserve scarce resources, treabnent in tertiary psychiatric hospitals should be restricted to those whose treatment needs make admission to such hospitals essential. However, anecdotal ...

  12. Stress levels of psychiatric nursing staff

    NARCIS (Netherlands)

    Looff, P.C. de; Kuijpers, E.; Nijman, H.L.I.

    2014-01-01

    During a total of 30 shifts, the arousal levels of 10 psychiatric nurses were assessed while working on a (forensic) psychiatric admissions ward. Arousal was assessed by means of a small device (wristband) by which the Skin Conductance Level (SCL) of the participating nurses was monitored. Each

  13. Parental psychiatric hospitalisation and offspring schizophrenia

    DEFF Research Database (Denmark)

    Sørensen, Holger J; Mortensen, Erik L; Reinisch, June M

    2009-01-01

    The risk of schizophrenia has been linked with a family history of schizophrenia and less strongly with other psychiatric disorders in family members. Using data from the Copenhagen Perinatal Cohort and from the Danish Psychiatric Case Register, we studied the relationship between offspring risk...... of schizophrenia and a range of psychotic and non-psychotic psychiatric diagnoses in parents. Psychiatric admission data after 1969 were available for 7047 cohort members born between 1959 and 1961, and for 7006 mothers and 6993 fathers. Univariate analysis showed that neurosis, alcohol and substance dependence...... in both parents were associated with elevated risk of offspring schizophrenia; in addition, maternal schizophrenia, affective disorder and personality disorder were associated with elevated risk. Controlling for parental age, parental social status, and parental psychiatric co-diagnosis, offspring risk...

  14. Acoustic Radiation Force Impulse Technology in the Differential Diagnosis of Solid Breast Masses with Different Sizes: Which Features Are Most Efficient?

    Directory of Open Access Journals (Sweden)

    Min Bai

    2015-01-01

    Full Text Available Purpose. To evaluate diagnostic performance of acoustic radiation force impulse (ARFI technology for solid breast masses with different sizes and determine which features are most efficient. Materials and Methods. 271 solid breast masses in 242 women were examined with ARFI, and their shear wave velocities (SWVs, Virtual Touch tissue imaging (VTI patterns, and area ratios (ARs were measured and compared with their histopathological outcomes. Receiver operating characteristic curves (ROC were calculated to assess diagnostic performance of ARFI for small masses (6–14 mm and big masses (15–30 mm. Results. SWV of mass was shown to be positively associated with mass size (P<0.001. For small masses, area under ROC (Az of AR was larger than that of SWV (P<0.001 and VTI pattern (P<0.001; no significant difference was found between Az of SWV and that of VTI pattern (P=0.906. For big masses, Az of VTI pattern was less than that of SWV (P=0.008 and AR (P=0.002; no significant difference was identified between Az of SWV and that of AR (P=0.584. Conclusions. For big masses, SWV and AR are both efficient measures; nevertheless, for small masses, AR seems to be the best feature.

  15. Optical Measurement Technologies for High Temperature, Radiation Exposure, and Corrosive Environments—Significant Activities and Findings: In-vessel Optical Measurements for Advanced SMRs

    Energy Technology Data Exchange (ETDEWEB)

    Anheier, Norman C.; Cannon, Bret D.; Qiao, Hong (Amy); Suter, Jonathan D.

    2012-09-01

    Development of advanced Small Modular Reactors (aSMRs) is key to providing the United States with a sustainable, economically viable, and carbon-neutral energy source. The aSMR designs have attractive economic factors that should compensate for the economies of scale that have driven development of large commercial nuclear power plants to date. For example, aSMRs can be manufactured at reduced capital costs in a factory and potentially shorter lead times and then be shipped to a site to provide power away from large grid systems. The integral, self-contained nature of aSMR designs is fundamentally different than conventional reactor designs. Future aSMR deployment will require new instrumentation and control (I&C) architectures to accommodate the integral design and withstand the extreme in-vessel environmental conditions. Operators will depend on sophisticated sensing and machine vision technologies that provide efficient human-machine interface for in-vessel telepresence, telerobotic control, and remote process operations. The future viability of aSMRs is dependent on understanding and overcoming the significant technical challenges involving in-vessel reactor sensing and monitoring under extreme temperatures, pressures, corrosive environments, and radiation fluxes

  16. Animal cruelty and psychiatric disorders.

    Science.gov (United States)

    Gleyzer, Roman; Felthous, Alan R; Holzer, Charles E

    2002-01-01

    Animal cruelty in childhood, although generally viewed as abnormal or deviant, for years was not considered symptomatic of any particular psychiatric disorder. Although animal cruelty is currently used as a diagnostic criterion for conduct disorder, research establishing the diagnostic significance of this behavior is essentially nonexistent. In the current study, investigators tested the hypothesis that a history of substantial animal cruelty is associated with a diagnosis of antisocial personality disorder (APD) and looked for associations with other disorders commonly diagnosed in a population of criminal defendants. Forty-eight subjects, criminal defendants who had histories of substantial animal cruelty, were matched with defendants without this history. Data were systematically obtained from the files by using four specifically designed data retrieval outlines. A history of animal cruelty during childhood was significantly associated with APD, antisocial personality traits, and polysubstance abuse. Mental retardation, psychotic disorders, and alcohol abuse showed no such association.

  17. Acupuncture therapy for psychiatric illness.

    Science.gov (United States)

    Pilkington, Karen

    2013-01-01

    Acupuncture has traditionally been used for problems including anxiety, insomnia, stress, and depression in China and other East Asian countries. A range of different neurobiological responses to acupuncture have been investigated including modulation of serotonergic, noradrenergic, and dopaminergic systems; effects on GABA and the hypothalamic-pituitary-adrenal axis; and inflammatory responses. Interpretation of the findings is challenging because the neurobiology of psychiatric disorders has yet to be fully elucidated. Limitations also arise from the use of animal models and the selection of appropriate control treatments. Further complexity is added by acupuncture treatment being nonstandardized with acupuncture points often selected on the basis on traditional practice and theory. Potentially promising findings require further investigation and substantiation. © 2013 Elsevier Inc. All rights reserved.

  18. Psychiatric features in perpetrators of homicide-unsuccessfulsuicide ...

    African Journals Online (AJOL)

    unsuccessful-suicide (HUS), those cases in which the perpetrator is referred for forensic psychiatric observation present an opportunity to explore psychiatric features pertaining to the event. Objective. To identify possible contributing psychiatric features ...

  19. Radiation Therapy

    Science.gov (United States)

    ... Be extra careful not to spend time with children or pregnant women. Internal Radiation Therapy Makes You Give Off Radiation With systemic radiation, your body fluids ( urine , sweat, and saliva ) will give off radiation for a while. With ...

  20. Radiation enteritis

    Science.gov (United States)

    Radiation enteropathy; Radiation-induced small bowel injury; Post-radiation enteritis ... Radiation therapy uses high-powered x-rays, particles, or radioactive seeds to kill cancer cells. The therapy ...

  1. Choking risk among psychiatric inpatients

    Directory of Open Access Journals (Sweden)

    Nagamine T

    2011-06-01

    Full Text Available Takahiko Nagamine1Division of Psychiatric Internal Medicine, Seiwakai-Kitsunan Hospital, Suzenji, JapanChoking is a life-threatening and not infrequent occurrence in psychiatric hospitals. There is, however, little information available about the risk factors or methods to prevent choking. We conducted a retrospective analysis of the 8 patients who had a cardiopulmonary arrest due to choking and received resuscitation at our hospital during the 6-year period from April 2005 to March 2011. The study involved 6 males and females, all of whom were patients with schizophrenia taking antipsychotics orally. They were aged from 56 to 79 (mean ± SD: 69.0 ± 7.5 years, with the duration of illness from 28 to 54 years (39.9 ± 7.9 years. In 6 of the 8 cases, choking was diagnosed immediately on the basis of the situation at the time of cardiopulmonary arrest. In the remaining 2 cases, cardiopulmonary arrest was initially unexplained, and choking was only diagnosed subsequently. Choking was caused by bread in all cases. Tracheal intubation was carried out in all cases and resulted in successful resuscitation, causing no subsequent change in functions compared with the prechoking condition. All 8 patients had been receiving multiple antipsychotics before the event (mean number of drugs used 2.5 ± 0.7, with a total dose level ranging from 600 to 1800 mg/day chlorpromazine equivalents (mean 1113 ± 341 mg/day. Seven of the 8 patients had mild to moderate involuntary movements, and 5 patients were diagnosed with antipsychotic-induced tardive dyskinesia. During the 5-year period before the choking event, 7 of the 8 patients had at least 1 treatment interruption, and some patients had up to 4 interruptions.

  2. Psychiatric comorbidities in patients with Atypical Odontalgia.

    Science.gov (United States)

    Miura, Anna; Tu, Trang T H; Shinohara, Yukiko; Mikuzuki, Lou; Kawasaki, Kaoru; Sugawara, Shiori; Suga, Takayuki; Watanabe, Takeshi; Watanabe, Motoko; Umezaki, Yojiro; Yoshikawa, Tatsuya; Motomura, Haruhiko; Takenoshita, Miho; Maeda, Hidefumi; Toyofuku, Akira

    2018-01-01

    Atypical Odontalgia (AO) is a condition characterized by tooth pain with no apparent cause. Although psychiatric comorbidity seems to be very common, it has rarely been studied. To clarify the influence of psychiatric comorbidity on the clinical features in patients with AO, we retrospectively evaluated their examination records. Clinical features and psychiatric diagnoses of 383 patients with AO were investigated by reviewing patients' medical records and referral letters. Psychiatric diagnoses were categorized according to the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5). We also analyzed visual analogue scale (VAS), self-rating depression scale (SDS), and the short-form McGill pain questionnaire (SF-MPQ) scores. Of the 383 patients with AO, 177 (46.2%) had comorbid psychiatric disorders. The most common were depressive disorders (15.4%) and anxiety disorders (10.1%). Serious psychotic disorders such as bipolar disorder (3.0%) and schizophrenia (1.8%) were rare. Dental trigger of AO was reported in 217 (56.7%) patients. There were no significant correlations between psychiatric comorbidities and most of the demographic features. Higher VAS and SDS scores, higher frequency of sleep disturbance, and higher ratings of "Fearful" and "Punishing-cruel" descriptors of the SF-MPQ were found in patients with psychiatric comorbidity. About half of AO patients had comorbid psychiatric disorders. Dental procedures are not necessarily causative factors of AO. In AO patients with comorbid psychiatric disorders, pain might have a larger emotional component than a sensory one. VAS, SDS, and SF-MPQ scores might aid in the noticing of underlying comorbid psychiatric disorders in AO patients. Copyright © 2017 The Authors. Published by Elsevier Inc. All rights reserved.

  3. Superficial mycoses among psychiatric patients in Mathari Hospital, Nairobi, Kenya.

    Science.gov (United States)

    Ogutu, M; Ng'ang'a, Z; Namasaka, M; Wambura, M

    2010-09-01

    To determine the prevalence of superficial mycoses among psychiatric patients. Randomised Prospective study Mathari Mental Hospital, and Jomo Kenyatta University of Agriculture and Technology, Nairobi Kenya. A study was conducted on prevalence of superficial fungal infections among psychiatric patients in Mathari Hospital, Nairobi, Kenya during the period of July to November 2009. 152 patients were assessed and samples collected from 25 patients with clinically suggestive symptoms of dermatomycosis revealed a 12.5% prevalence of superficial mycosis. There was no significant difference between males and females with superficial mycosis (P>0.05). Twenty percent of the patients who were on topical application had no viable organisms. Microsporum was the predominant species isolated while the skin was the site most commonly affected (64 %). Epidermophyton was the least prevalent. Terbinafin was the most effective antifungal while ketoconazole was the least effective. All patients admitted at Mathari hospital should be screened for fungal infection and treated. Terbinafin can be used as first line treatment of dermatomycosis after screening all psychiatric patients in Mathari Mental Hospital.

  4. Weapons of mass destruction: radiation.

    Science.gov (United States)

    Neal, Chris J; Moores, Leon E

    2002-03-15

    The purpose of this review is to present a concise overview of the types of radiation, methods of dispersal, injury patterns, and treatment considerations in a scenario involving radiation-based weapons of mass destruction. Radiation-related casualties, although uncommon, are a potential threat because more nations and organizations are developing the technology for producing radioactive substances capable of being used as weapons.

  5. Connectomics in psychiatric research: advances and applications

    Directory of Open Access Journals (Sweden)

    Cao M

    2015-10-01

    Full Text Available Miao Cao,* Zhijiang Wang,* Yong He State Key Laboratory of Cognitive Neuroscience and Learning and IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing, People’s Republic of China *These authors contributed equally to this work Abstract: Psychiatric disorders disturb higher cognitive functions and severely compromise human health. However, the pathophysiological mechanisms underlying psychiatric disorders are very complex, and understanding these mechanisms remains a great challenge. Currently, many psychiatric disorders are hypothesized to reflect “faulty wiring” or aberrant connectivity in the brains. Imaging connectomics is arising as a promising methodological framework for describing the structural and functional connectivity patterns of the human brain. Recently, alterations of brain networks in the connectome have been reported in various psychiatric disorders, and these alterations may provide biomarkers for disease diagnosis and prognosis for the evaluation of treatment efficacy. Here, we summarize the current achievements in both the structural and functional connectomes in several major psychiatric disorders (eg, schizophrenia, attention-deficit/hyperactivity disorder, and autism based on multi-modal neuroimaging data. We highlight the current progress in the identification of these alterations and the hypotheses concerning the aberrant brain networks in individuals with psychiatric disorders and discuss the research questions that might contribute to a further mechanistic understanding of these disorders from a connectomic perspective.Keywords: psychiatric disorders, connectome, graph theory, functional connectivity, structural connectivity

  6. Psychiatric phenotypes in chronic traumatic encephalopathy.

    Science.gov (United States)

    Mahar, Ian; Alosco, Michael L; McKee, Ann C

    2017-09-06

    Chronic traumatic encephalopathy (CTE) is a neurodegenerative disorder involving cognitive, motor, and psychiatrically-relevant symptoms resulting from repetitive head impacts. Psychiatric phenotypes of CTE, including depression and suicidality, present particular challenges for CTE research, given that the diagnosis requires postmortem neuropathological examination. The pathognomonic lesion of CTE is the perivascular accumulation of hyperphosphorylated tau (ptau) protein at the depths of cortical sulci. These lesions are found in the earliest disease stages, and with advancing pathological severity, ptau deposition occurs in widespread brain regions in a four-stage scheme of severity. We review the psychiatric phenotypes of individuals neuropathologically diagnosed with CTE, and suggest that earlier CTE stages hold particular interest for psychiatric CTE research. In the early CTE stages, there is ptau pathology in frontal cortex and axonal loss in the frontal white matter, followed by progressive ptau neurofibrillary degeneration in the amygdala and hippocampus. Neuropathological changes in the frontal and medial temporal lobes may underlie psychiatric phenotypes. Additional insight into the association between CTE pathology and psychiatric sequelae may come from advancements in in vivo methods of CTE detection. Further epidemiological, clinical, and postmortem studies are needed to validate the nature of psychiatric sequelae in CTE. Copyright © 2017. Published by Elsevier Ltd.

  7. [Promoting "successful aging" in community psychiatric care].

    Science.gov (United States)

    Niimura, Hidehito; Nemoto, Takahiro; Sakuma, Kei; Mizuno, Masafumi

    2011-01-01

    Recently, patients with schizophrenia have been progressively aging in a way similar to that of the general population. In Japan, community mental health care has become more active in the context of the policy of promoting the discharge of patients from psychiatric hospitals. Patients with chronic schizophrenia who have been discharged are already approaching old age. "Successful aging" may be a key concept in their community-based psychiatric care. Successful aging does not emphasize a loss of youth, but focuses on gains and growth achieved with aging. In the Sasagawa Project, 78 patients with schizophrenia were gradually transferred from a psychiatric hospital to a community dwelling. Eight years have passed since the project began. Elder patients (>60 years old) showed stable psychiatric symptoms and were rarely readmitted to the psychiatric ward. They were, however, more often readmitted to hospital due to physical disease (for example, lifestyle-related disease or fracture) than were middle -aged patients (aging, but they are not sufficiently prepared for old age. In the mental health care of aging psychiatric patients, it is necessary to not only control psychiatric symptoms, but also promote and improve their quality of life by maintaining their ability to continue living in the community (for example, by supporting their preparations for old age).

  8. The checkered history of American psychiatric epidemiology.

    Science.gov (United States)

    Horwitz, Allan V; Grob, Gerald N

    2011-12-01

    American psychiatry has been fascinated with statistics ever since the specialty was created in the early nineteenth century. Initially, psychiatrists hoped that statistics would reveal the benefits of institutional care. Nevertheless, their fascination with statistics was far removed from the growing importance of epidemiology generally. The impetus to create an epidemiology of mental disorders came from the emerging social sciences, whose members were concerned with developing a scientific understanding of individual and social behavior and applying it to a series of pressing social problems. Beginning in the 1920s, the interest of psychiatric epidemiologists shifted to the ways that social environments contributed to the development of mental disorders. This emphasis dramatically changed after 1980 when the policy focus of psychiatric epidemiology became the early identification and prevention of mental illness in individuals. This article reviews the major developments in psychiatric epidemiology over the past century and a half. The lack of an adequate classification system for mental illness has precluded the field of psychiatric epidemiology from providing causal understandings that could contribute to more adequate policies to remediate psychiatric disorders. Because of this gap, the policy influence of psychiatric epidemiology has stemmed more from institutional and ideological concerns than from knowledge about the causes of mental disorders. Most of the problems that have bedeviled psychiatric epidemiology since its inception remain unresolved. In particular, until epidemiologists develop adequate methods to measure mental illnesses in community populations, the policy contributions of this field will not be fully realized. © 2011 Milbank Memorial Fund.

  9. Genomewide association studies: history, rationale, and prospects for psychiatric disorders.

    Science.gov (United States)

    Cichon, Sven; Craddock, Nick; Daly, Mark; Faraone, Stephen V; Gejman, Pablo V; Kelsoe, John; Lehner, Thomas; Levinson, Douglas F; Moran, Audra; Sklar, Pamela; Sullivan, Patrick F

    2009-05-01

    The authors conducted a review of the history and empirical basis of genomewide association studies (GWAS), the rationale for GWAS of psychiatric disorders, results to date, limitations, and plans for GWAS meta-analyses. A literature review was carried out, power and other issues discussed, and planned studies assessed. Most of the genomic DNA sequence differences between any two people are common (frequency >5%) single nucleotide polymorphisms (SNPs). Because of localized patterns of correlation (linkage disequilibrium), 500,000 to 1,000,000 of these SNPs can test the hypothesis that one or more common variants explain part of the genetic risk for a disease. GWAS technologies can also detect some of the copy number variants (deletions and duplications) in the genome. Systematic study of rare variants will require large-scale resequencing analyses. GWAS methods have detected a remarkable number of robust genetic associations for dozens of common diseases and traits, leading to new pathophysiological hypotheses, although only small proportions of genetic variance have been explained thus far and therapeutic applications will require substantial further effort. Study design issues, power, and limitations are discussed. For psychiatric disorders, there are initial significant findings for common SNPs and for rare copy number variants, and many other studies are in progress. GWAS of large samples have detected associations of common SNPs and of rare copy number variants with psychiatric disorders. More findings are likely, since larger GWAS samples detect larger numbers of common susceptibility variants, with smaller effects. The Psychiatric GWAS Consortium is conducting GWAS meta-analyses for schizophrenia, bipolar disorder, major depressive disorder, autism, and attention deficit hyperactivity disorder. Based on results for other diseases, larger samples will be required. The contribution of GWAS will depend on the true genetic architecture of each disorder.

  10. Transformations of Professional Work in Psychiatric Health Care

    DEFF Research Database (Denmark)

    Dybbroe, Betina

    In psychiatry in Denmark health and social care is being replaced by diagnostic categorisations and a more consumerized relation between the health professionals and patients as self- responsible citizens. Increasing medicalization and New Public Management reforms and standardization for cost......- effectiveness intertwine with a neo-liberal health policy of a “user- focus and user involvement”,that transforms psychiatric practice. Through the micro-sociological study of professionals working with patients in psychiatry, it is illuminated how patients/clients are objectified and left to care...... for themselves, and how professionalism is transformed into manualisation of practice, and test technologies replace meeting “significant others”....

  11. Psychiatric disorder in male veterans and nonveterans.

    Science.gov (United States)

    Norquist, G S; Hough, R L; Golding, J M; Escobar, J I

    1990-05-01

    Prevalences of Diagnostic Interview Schedule/DSM-III psychiatric disorders for male veterans and nonveterans from four war eras were estimated using data from over 7500 male community respondents interviewed by the Epidemiologic Catchment Area program at five geographic areas across the country. Veterans serving after Vietnam (Post-Vietnam era) had greater lifetime and 6-month prevalences of psychiatric disorder than their nonveteran counterparts, whereas the reverse tended to be the case for the Vietnam, Korean, and World War II war eras. Comparisons across war eras revealed a trend for more psychiatric disorder, especially substance abuse, in younger veterans and nonveterans than in older respondents.

  12. Workroles of staff nurses in psychiatric settings.

    Science.gov (United States)

    Morrison, E G; Shealy, A H; Kowalski, C; LaMont, J; Range, B A

    1996-01-01

    The purpose of this research was to operationalize Peplau's workroles of the psychiatric staff nurse. Thirty registered nurses audiotaped one-to-one interactions with 62 adult, child, and adolescent psychiatric patients. Content analysis was used to identify role behaviors and to identify roles that were different from those outlined by Peplau. The counselor role was the most frequently occurring primary workrole. Overlap was found between behaviors indicative of autocratic leader versus surrogate and those of resource person versus teacher. The findings supported Peplau's contention that the counselor role is central to the practice of psychiatric nursing.

  13. Cyberbullying: implications for the psychiatric nurse practitioner.

    Science.gov (United States)

    Carpenter, Lindsey M; Hubbard, Grace B

    2014-08-01

    The purpose of this article is to inform and educate psychiatric nurse practitioners about the pervasiveness of the rapidly increasing problem of cyberbullying. As more children and adolescents obtain access to the Internet, mobile devices, and social networking sites, the exposure to bullying in the virtual format increases. Cyberbullying is a growing public health concern and can affect mental health and school performance. Cyberbullying often results in a range of psychiatric symptoms and has been linked to suicide attempts and completions. The psychiatric nurse practitioner is uniquely prepared to provide a range of interventions for patients, families, and communities who have experienced cyberbullying. © 2014 Wiley Periodicals, Inc.

  14. Substance use among Danish psychiatric patients

    DEFF Research Database (Denmark)

    Sørensen, Tina; Jespersen, Hans Søe Riis; Vinberg, Maj

    2017-01-01

    equivalents. Compared to the general population, the psychiatric patients had higher odds of being current smokers and having used illicit drugs within the past month. Women with psychiatric disorders were twice as likely to binge drink on a monthly basis. No significant difference was found in the patients......, 412 psychiatric patients participated in the study, and 33% had an AUDIT-score ≥8, indicating problematic alcohol use according to the AUDIT guidelines. The mean weekly alcohol intake was 9.7 ± 28.3 standard drinks, and 47% were current smokers with a mean daily use of 19.9 ± 13.8 cigarette...

  15. Indian - American contributions to psychiatric research.

    Science.gov (United States)

    Pandurangi, Anand K

    2010-01-01

    The Indian Diaspora, especially in North America, is a visible force in the field of psychiatric medicine. An estimated 5000 persons of Indian origin practice psychiatry in the USA and Canada, and an estimated 10% of these are in academic psychiatry. Wide ranging contributions, from molecular biology of psychiatric disorders to community and cultural psychiatry, are being made by this vibrant group of researchers. This article is a brief summary and work-in-progress report of the contributions by Indian - American psychiatric researchers. Although not exhaustive in coverage, it is meant to give the reader an overview of the contributions made by three waves of researchers over a span of 50 years.

  16. PSYCHIATRIC MORBIDITY IN A CHILDREN'S HOME1

    Science.gov (United States)

    Chaturvedi, P. K.; Agarwal, A. K; Gupta, S. C.

    1980-01-01

    SUMMARY Sixty-two inmates of a children's home were examined by using a symptom check list and Hindi adaptation of Stanford Binet Intelligence Scale—Form LM (1960). A high proportion (69.4%) of the inmates had one or other psychiatric problem. Mild mental retardation (I. Q. 50—70) was most common (40.3%), 11.3% were diagnosed as having unsocialized disturbance of conduct. Four most common psychiatric symptoms were stealing, quarrelsome behaviour, destructive behaviour and bed wetting. No significant correlation was found between psychiatric illnesses and present age, duration of stay and age at entry into the home. PMID:22058478

  17. Psychiatric aspects of chronic lung disease.

    Science.gov (United States)

    Jain, Abhishek; Lolak, Sermsak

    2009-06-01

    Chronic lung diseases continue to be common and cause significant morbidity and mortality. There is a complex interplay between psychiatric issues and pulmonary diseases. This review aims to summarize the recent literature and advances involving psychiatric aspects of lung diseases, including chronic obstructive pulmonary disease, asthma, restrictive lung disease, and cystic fibrosis. The authors include the latest findings in epidemiology, impact, etiology, screening, and management of psychiatric and pulmonary comorbidity. The relationship between mental health and lung disease, as it is between mental health and other physical illnesses, is multifactorial. Further studies continue to clarify issues and treatment guidelines for this comorbidity.

  18. Technology for radiation efficiency measurement of high-power halogen tungsten lamp used in calibration of high-energy laser energy meter.

    Science.gov (United States)

    Wei, Ji Feng; Hu, Xiao Yang; Sun, Li Qun; Zhang, Kai; Chang, Yan

    2015-03-20

    The calibration method using a high-power halogen tungsten lamp as a calibration source has many advantages such as strong equivalence and high power, so it is very fit for the calibration of high-energy laser energy meters. However, high-power halogen tungsten lamps after power-off still reserve much residual energy and continually radiate energy, which is difficult to be measured. Two measuring systems were found to solve the problems. One system is composed of an integrating sphere and two optical spectrometers, which can accurately characterize the radiative spectra and power-time variation of the halogen tungsten lamp. This measuring system was then calibrated using a normal halogen tungsten lamp made of the same material as the high-power halogen tungsten lamp. In this way, the radiation efficiency of the halogen tungsten lamp after power-off can be quantitatively measured. In the other measuring system, a wide-spectrum power meter was installed far away from the halogen tungsten lamp; thus, the lamp can be regarded as a point light source. The radiation efficiency of residual energy from the halogen tungsten lamp was computed on the basis of geometrical relations. The results show that the halogen tungsten lamp's radiation efficiency was improved with power-on time but did not change under constant power-on time/energy. All the tested halogen tungsten lamps reached 89.3% of radiation efficiency at 50 s after power-on. After power-off, the residual energy in the halogen tungsten lamp gradually dropped to less than 10% of the initial radiation power, and the radiation efficiency changed with time. The final total radiation energy was decided by the halogen tungsten lamp's radiation efficiency, the radiation efficiency of residual energy, and the total power consumption. The measuring uncertainty of total radiation energy was 2.4% (here, the confidence factor is two).

  19. Subjectivity and severe psychiatric disorders.

    Science.gov (United States)

    Strauss, John

    2011-01-01

    To have a complete human science in the mental health field it is essential to give adequate attention to both the objective and the subjective data related to people with psychiatric disorders. The tendency in the past has been to ignore or discount one or the other of these data sources. Subjective data are particularly neglected, sometimes considered (only) part of the "art" of medicine since the usual methodologies of the physical sciences in themselves are not adequate to reflect the nature, elusiveness, and complexity of human subjective experience. The complete experience of hallucinated voices, for instance, often includes not only the voices themselves but also terrible anguish and terrifying inability to concentrate. But even such descriptors fall unnecessarily short of reflecting the data of the experience, thus leaving research, theory, and treatment with incomplete information. To represent adequately the subjective data it is essential to recognize that besides the usual discursive knowledge and methods of traditional physical science, a second kind of knowledge and method is required to reflect the depth of human experience. To accomplish this, we must employ approaches to narrative and the arts that are uniquely capable of capturing the nature of these experiences. Only by attending seriously in our research, training, theory, and practice to the unique nature of subjective data is it possible to have a true human science for our field.

  20. [Current issues in psychiatric ethics].

    Science.gov (United States)

    Kovács, József

    2015-01-01

    The article analyzes some ethical problems in psychiatry that have been emerging in recent years. It deals with the ongoing intensive debates about the DSM-5 before its publication, and with some of the criticisms of the DSM-5 itself. Then it goes on to analyze the use of placebo. This is followed by the ethical problems of the treatment of ADHD with stimulant drugs, among which one is the question of authenticity, namely whether the pre-treatment or the post-treatment personality is the real, authentic self of the patient. This question has been raised not only in the case of the ADHD, but also in relation with the antidepressant treatment of depression earlier, and in relation with deep brain stimulation and dopamine replacement therapy now, all of which causes changes in the treated patient's personality and motivations. Finally the article describes some ethical problems of informed consent in the case of antidepressant medication, together with the necessity to involve psychiatric nurses and rating scales in the assessment of the patient's decision making capacity.

  1. Optical radiation in modern medicine.

    Science.gov (United States)

    Sowa, Paweł; Rutkowska-Talipska, Joanna; Rutkowski, Krzysztof; Kosztyła-Hojna, Bożena; Rutkowski, Ryszard

    2013-08-01

    Optical radiation extends between microwaves and X-rays of the electromagnetic radiation and includes ultraviolet (UV), visible light (VL) and infrared (IR) components. The dose of radiation that reaches the skin is influenced by the ozone layer, position of the Sun, latitude, altitude, cloud cover and ground reflections. The photobiological effects of UV, VL and IR bands depend on their wavelength, frequency and mechanism of action. They are modified by the thickness, structure, vasculature and pigmentation of skin's stratum corneum, epidermis and dermis. Following absorption, IR affects the body mainly through transfer of thermal energy to tissues. Visible light and skin interact either thermally or photochemically, whereas UV acts mainly photochemically. Optical radiation in the form of sunlight therapy had been used already in ancient times. Nowadays IR, VL and UV are widely applied in the therapy of allergic, dermatological, cardiovascular, respiratory, rheumatic, neonatal, pediatric and psychiatric disorders.

  2. Optical radiation in modern medicine

    Science.gov (United States)

    Sowa, Paweł; Rutkowska-Talipska, Joanna; Rutkowski, Krzysztof; Kosztyła-Hojna, Bożena

    2013-01-01

    Optical radiation extends between microwaves and X-rays of the electromagnetic radiation and includes ultraviolet (UV), visible light (VL) and infrared (IR) components. The dose of radiation that reaches the skin is influenced by the ozone layer, position of the Sun, latitude, altitude, cloud cover and ground reflections. The photobiological effects of UV, VL and IR bands depend on their wavelength, frequency and mechanism of action. They are modified by the thickness, structure, vasculature and pigmentation of skin's stratum corneum, epidermis and dermis. Following absorption, IR affects the body mainly through transfer of thermal energy to tissues. Visible light and skin interact either thermally or photochemically, whereas UV acts mainly photochemically. Optical radiation in the form of sunlight therapy had been used already in ancient times. Nowadays IR, VL and UV are widely applied in the therapy of allergic, dermatological, cardiovascular, respiratory, rheumatic, neonatal, pediatric and psychiatric disorders. PMID:24278082

  3. Measurement and detection of radiation

    CERN Document Server

    Tsoulfanidis, Nicholas

    2015-01-01

    This fourth edition reflects recent major developments that have occurred in radiation detector materials, systems, and applications. It continues to provide the most practical and up-to-date introduction to radiation detector technology, proper measurement techniques, and analysis of results for engineers and scientists using radiation sources. New chapters emphasize the expanded use of radiation detection systems in nuclear non-proliferation, homeland security, and nuclear medicine. The book also discusses the correct ways to perform measurements following current health physics procedures.

  4. Service dogs, psychiatric hospitalization, and the ADA.

    Science.gov (United States)

    Muramatsu, Russ S; Thomas, Kelly Jones; Leong, Stephanie L; Ragukonis, Frank

    2015-01-01

    A service dog is defined as "any dog that is individually trained to do work or perform tasks for the benefit of an individual with a disability, including a physical, sensory, psychiatric, intellectual, or other mental disability." Some psychiatric patients may depend on a service dog for day-to-day functioning. The Americans with Disabilities Act (ADA) established certain rights and responsibilities for individuals with disabilities and health care providers. Psychiatric hospitalization of a patient with a service dog may pose a problem and involves balancing the requirement to provide safe and appropriate psychiatric care with the rights of individuals with disabilities. This Open Forum examines issues that arise in such circumstances, reviews the literature, and provides a foundation for the development of policies and procedures.

  5. Service Dogs, Psychiatric Hospitalization, and the ADA

    National Research Council Canada - National Science Library

    Muramatsu, Russ S; Thomas, Kelly Jones; Leong, Stephanie L; Ragukonis, Frank

    A service dog is defined as “any dog that is individually trained to do work or perform tasks for the benefit of an individual with a disability, including a physical, sensory, psychiatric, intellectual, or other mental disability...

  6. Barriers in the treatment of psychiatric disorders

    Directory of Open Access Journals (Sweden)

    Anil Kumar

    2016-07-01

    Full Text Available Psychiatric illnesses are very common in prevalence. But not everyone who has a mental illness gets a psychiatric consultation. The causes are many. First, many time people don’t recognise and accept mental illnesses in them as a result of lack of insight and awareness. Secondly, even if they know they have a mental illness, they don’t feel comfortable in disclosing it. Third, after knowing that they have some problems which require help from a doctor, they don’t know whom to consult, where to consult, and how to consult. Fourth, in spite of all possible awareness, there may not be psychiatric facilities nearby. Thus, it becomes utmost necessary to discuss those factors which stop people with psychiatric illnesses to get adequate help so that remedial steps could be taken.

  7. Psychiatric nosology and taxonomy in ancient India.

    Science.gov (United States)

    Haldipur, C V

    1989-08-01

    This article considers the nosology and taxonomy of psychiatric disorders in Sushruta Samhita, an ancient Indian treatise on medicine. Some implications of this treatise for modern psychiatry are discussed.

  8. Chromosomal abnormalities in a psychiatric population

    Energy Technology Data Exchange (ETDEWEB)

    Lewis, K.E.; Lubetsky, M.J.; Wenger, S.L.; Steele, M.W. [Univ. of Pittsburgh Medical Center, PA (United States)

    1995-02-27

    Over a 3.5 year period of time, 345 patients hospitalized for psychiatric problems were evaluated cytogenetically. The patient population included 76% males and 94% children with a mean age of 12 years. The criteria for testing was an undiagnosed etiology for mental retardation and/or autism. Cytogenetic studies identified 11, or 3%, with abnormal karyotypes, including 4 fragile X positive individuals (2 males, 2 females), and 8 with chromosomal aneuploidy, rearrangements, or deletions. While individuals with chromosomal abnormalities do not demonstrate specific behavioral, psychiatric, or developmental problems relative to other psychiatric patients, our results demonstrate the need for an increased awareness to order chromosomal analysis and fragile X testing in those individuals who have combinations of behavioral/psychiatric, learning, communication, or cognitive disturbance. 5 refs., 1 fig., 2 tabs.

  9. Forensic Psychiatric Aspects of Impulse Control Disorders

    Directory of Open Access Journals (Sweden)

    Huseyin Soysal

    2015-03-01

    Full Text Available Impulse control disorders is an important psychiatric disorder group which draws attention in recent years. Attention deficit hyperactivity disorder and other classical disorders like pyromania, kleptomania, intermittent explosive disorder and compulsive buying could be evasuated under this topic. The aim of this article is to review forensic psychiatric aspects of impulse control disorders and evaluate the disorders in terms of their legal status. [Psikiyatride Guncel Yaklasimlar - Current Approaches in Psychiatry 2015; 7(1: 16-29

  10. Ethics in Psychiatric Research: Issues and Recommendations

    OpenAIRE

    Jain, Shobhit; Kuppili, Pooja Patnaik; Pattanayak, Raman Deep; Sagar, Rajesh

    2017-01-01

    Psychiatric research has increased remarkably over recent decades to help in understanding the current trends and better therapeutic options for illness. On the other hand, there is also a trend toward higher rates of retraction of published papers in the recent years. Ethics is required to maintain and increase the overall quality and morality of research. Psychiatric research faces several unique ethical challenges. Ethical guidelines are very important tool of research which safeguards par...

  11. Insomnia comorbid to severe psychiatric illness

    OpenAIRE

    Soehner, Adriane M.; Kaplan, Katherine A; Harvey, Allison G.

    2013-01-01

    In psychiatric illness, there is a growing body of evidence indicating that sleep disturbances exert a detrimental influence on the course of these disorders and contribute to impaired function. Even when psychiatric disorders are successfully treated or stabilized, insomnia and other sleep disturbances often fail to remit. The present review focuses on sleep in two severe mental illnesses, namely bipolar disorder and schizophrenia. This article discusses the role of sleep disturbances and al...

  12. Psychiatric aspects of Parkinson′s disease

    Directory of Open Access Journals (Sweden)

    Sandeep Grover

    2015-01-01

    Full Text Available Parkinson′s disease (PD is essentially characterized by the motor symptoms in the form of resting tremor, rigidity and bradykinesia. However, over the years it has been recognized that motor symptoms are just the "tip of the iceberg" of clinical manifestations of PD. Besides motor symptoms, PD characterized by many non-motor symptoms, which include cognitive decline, psychiatric disturbances (depression, psychosis and impulse control, sleep difficulties, autonomic failures (gastrointestinal, cardiovascular, urinary, thermoregulation and pain syndrome. This review evaluates the various aspects of psychiatric disorders including cognitive decline and sleep disturbances in patients with PD. The prevalence rate of various psychiatric disorders is high in patients with PD. In terms of risk factors, various demographic, clinical and treatment-related variables have been shown to be associated with higher risk of development of psychiatric morbidity. Evidence also suggests that the presence of psychiatric morbidity is associated with poorer outcome. Randomized controlled trials, evaluating the various pharmacological and non-pharmacological treatments for management of psychiatric morbidity in patients with PD are meager. Available evidence suggests that tricyclic antidepressants like desipramine and nortriptyline are efficacious for management of depression. Among the antipsychotics, clozapine is considered to be the best choice for management of psychosis in patients with PD. Among the various cognitive enhancers, evidence suggest efficacy of rivastigmine in management of dementia in patients with PD. To conclude, this review suggests that psychiatric morbidity is highly prevalent in patients with PD. Hence, a multidisciplinary approach must be followed to improve the overall outcome of PD. Further studies are required to evaluate the efficacy of various other measures for management of psychiatric morbidity in patients with PD.

  13. Psychiatric disorders and urbanization in Germany

    OpenAIRE

    Koelen Jurrijn; Peen Jaap; Dekker Jack; Smit Filip; Schoevers Robert

    2008-01-01

    Abstract Background Epidemiological studies over the last decade have supplied growing evidence of an association between urbanization and the prevalence of psychiatric disorders. Our aim was to examine the link between levels of urbanization and 12-month prevalence rates of psychiatric disorders in a nationwide German population study, controlling for other known risk factors such as gender, social class, marital status and the interaction variables of these factors with urbanization. Method...

  14. Low blood pressure in psychiatric inpatients.

    OpenAIRE

    Masterton, G; Main, C J; Lever, A F; Lever, R S

    1981-01-01

    Blood pressure recordings in 116 female psychiatric inpatients were analysed. Sixty-nine women had schizophrenia, the remainder a variety of psychiatric conditions. All had been in hospital continuously for more than one year, the average for 19 years continuously. An average of seven recordings of blood pressure per patient had been made during that time. The latest of these compared well with measurements made independently using a sphygmomanometer free from observer bias. On admission to h...

  15. Concurrent Medical and Psychiatric Disorders among Schizophrenic and Neurotic Outpatients.

    Science.gov (United States)

    Lima, Bruno R.; Pai, Shaila

    Although the occurrence of medical illnesses in psychiatric patients is quite high, medical illnesses manifested by psychiatric symptoms are often overlooked. The higher mortality rates among psychiatric patients when compared to the general population may be a reflection of neglect or inadequate treatment of the psychiatric patients' medical…

  16. Training in Psychiatric Genomics during Residency: A New Challenge

    Science.gov (United States)

    Winner, Joel G.; Goebert, Deborah; Matsu, Courtenay; Mrazek, David A.

    2010-01-01

    Objective: The authors ascertained the amount of training in psychiatric genomics that is provided in North American psychiatric residency programs. Methods: A sample of 217 chief residents in psychiatric residency programs in the United States and Canada were identified by e-mail and surveyed to assess their training in psychiatric genetics and…

  17. [Prescription drug abuse in elderly psychiatric patients].

    Science.gov (United States)

    Wetterling, Tilman; Schneider, Barbara

    2012-08-01

    Due to demographic changes there will be a fraction of elderly patients with substance use disorders. However, only a few data have been published about elderly abusers of prescription drugs. Since substance abuse is frequently comorbid with psychiatric disorders, treatment in a psychiatric hospital is often needed. In this explorative study elderly people with prescription drug abuse who required psychiatric inpatient treatment should be characterized. This study was part of the gerontopsychiatry study Berlin (Gepsy-B), an investigation of the data of all older inpatients (≥ 65 years) admitted to a psychiatric hospital within a period of 3 years. Among 1266 documented admissions in 110 cases (8.7 %) (mean age: 75.7 ± 7.1 years) prescription drug abuse, mostly of benzodiazepines was diagnosed. Females showed benzodiazepine abuse more often than males. In only a small proportion of the cases the reason for admission was withdrawal of prescribed drugs. 85.5 % suffered from psychiatric comorbidity, mostly depression. As risk factors for abuse depressive symptoms (OR: 3.32) as well as concurrent nicotine (OR: 2.69) or alcohol abuse (OR: 2.14) were calculated. Psychiatric inpatient treatment was primarily not necessary because of prescription drug abuse but because of other psychopathological symptoms. © Georg Thieme Verlag KG Stuttgart · New York.

  18. Policies on assisted suicide in Dutch psychiatric facilities.

    Science.gov (United States)

    Haverkate, I; van der Wal, G

    1998-01-01

    Recent jurisprudence in the Netherlands challenges psychiatric hospitals to formulate policies on how to approach requests for assisted suicide. This study examined whether such policies exist in Dutch psychiatric hospitals and general hospitals with psychiatric wards. The directors of patient care in 38 of the country's 52 psychiatric hospitals and 42 of the 59 general hospitals with psychiatric wards responded to a mail survey. Five psychiatric hospitals and six general hospitals had written policies. Almost half of the psychiatric hospitals had a verbal policy only. The majority of the hospitals with policies had a tolerant or permissive policy toward assisted suicide.

  19. Proposing a Simple Radiation Scale for the Public: Radiation Index

    Directory of Open Access Journals (Sweden)

    Gyuseong Cho

    2017-04-01

    Full Text Available A new radiation scale is proposed. With empathy toward the vast majority of people who are not well versed in radiation and related matters, and thus suffering from misunderstanding that breeds unnecessary fear of radiation, the aim of proposing a new radiation scale, radiation index (RAIN, is to put the general public at ease with the concept of radiation. RAIN is defined in dimensionless numbers that relate any specific radiation dose to a properly defined reference level. As RAIN is expressed in plain numbers without an attached scientific unit, the public will feel comfortable with its friendly look, which in turn should help them understand radiation dose levels easily and allay their anxieties about radiation. The expanded awareness and proper understanding of radiation will empower the public to feel that they are not hopeless victims of radiation. The correspondence between RAIN and the specific accumulated dose is established. The equivalence will allow RAIN to serve as a common language of communication for the general public with which they can converse with radiation experts to discuss matters related to radiation safety, radiation diagnosis and therapy, nuclear accidents, and other related matters. Such fruitful dialogues will ultimately enhance public acceptance of radiation and associated technologies.

  20. Proposing a simple radiation scale for the public: Radiation index

    Energy Technology Data Exchange (ETDEWEB)

    Cho, Gyu Seong; Kim, Jong Hyun [Dept. of Nuclear and Quantum Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon (Korea, Republic of); Park, Tae Soon [Center for Ionizing Radiation, Korea Research Institute of Standards and Science (KRISS), Daejeon (Korea, Republic of); Cho, Kunwoo [Dept. of Natural Radiation Safety, Korea Institute of Nuclear Safety (KINS), Daejeon (Korea, Republic of)

    2017-04-15

    A new radiation scale is proposed. With empathy toward the vast majority of people who are not well versed in radiation and related matters, and thus suffering from misunderstanding that breeds unnecessary fear of radiation, the aim of proposing a new radiation scale, radiation index (RAIN), is to put the general public at ease with the concept of radiation. RAIN is defined in dimensionless numbers that relate any specific radiation dose to a properly defined reference level. As RAIN is expressed in plain numbers without an attached scientific unit, the public will feel comfortable with its friendly look, which in turn should help them understand radiation dose levels easily and allay their anxieties about radiation. The expanded awareness and proper understanding of radiation will empower the public to feel that they are not hopeless victims of radiation. The correspondence between RAIN and the specific accumulated dose is established. The equivalence will allow RAIN to serve as a common language of communication for the general public with which they can converse with radiation experts to discuss matters related to radiation safety, radiation diagnosis and therapy, nuclear accidents, and other related matters. Such fruitful dialogues will ultimately enhance public acceptance of radiation and associated technologies.

  1. Psychiatric/ psychological forensic report writing.

    Science.gov (United States)

    Young, Gerald

    Approaches to forensic report writing in psychiatry, psychology, and related mental health disciplines have moved from an organization, content, and stylistic framework to considering ethical and other codes, evidentiary standards, and practice considerations. The first part of the article surveys different approaches to forensic report writing, including that of forensic mental health assessment and psychiatric ethics. The second part deals especially with psychological ethical approaches. The American Psychological Association's Ethical Principles and Code of Conduct (2002) provide one set of principles on which to base forensic report writing. The U.S. Federal Rules of Evidence (2014) and related state rules provide another basis. The American Psychological Association's Specialty Guidelines for Forensic Psychology (2013) provide a third source. Some work has expanded the principles in ethics codes; and, in the third part of this article, these additions are applied to forensic report writing. Other work that could help with the question of forensic report writing concerns the 4 Ds in psychological injury assessments (e.g., conduct oneself with Dignity, avoid the adversary Divide, get the needed reliable Data, Determine interpretations and conclusions judiciously). One overarching ethical principle that is especially applicable in forensic report writing is to be comprehensive, scientific, and impartial. As applied to forensic report writing, the overall principle that applies is that the work process and product should reflect integrity in its ethics, law, and science. Four principles that derive from this meta-principle concern: Competency and Communication; Procedure and Protection; Dignity and Distance; and Data Collection and Determination. The standards or rules associated with each of these principles are reviewed. Crown Copyright © 2016. Published by Elsevier Ltd. All rights reserved.

  2. Prototype diagnosis of psychiatric syndromes

    Science.gov (United States)

    WESTEN, DREW

    2012-01-01

    resolve the thorny issue of the relation between psychiatric diagnosis and functional impairment. PMID:22294998

  3. Torture: psychiatric sequelae and phenomenology.

    Science.gov (United States)

    Doerr-Zegers, O; Hartmann, L; Lira, E; Weinstein, E

    1992-05-01

    Torture has been defined by the United Nations (declaration of December 9, 1975) as "every act by which a public functionary (or another person at his instigation) intentionally inflicts on another person serious pain or suffering, ...physical or mental, with the object of obtaining information or of punishing him...or of intimidating that person or others." In Chile, from the 1973 military coup d'Etat up to the 1988 plebiscite, torture was practiced in a systematic way, as a method of interrogation and as a means of intimidation of detainees and, indirectly, of the population at large. In the beginning, torture was applied in military station units and in police stations, in the facilities of sport fields and prisoners' camps; but above all, in clandestine detention centers and prisons belonging to the secret police (Amnesty International 1977, 1983; CODEPU 1984, 1985, 1986; Lira and Weinstein 1987; Muñoz 1986; Rodríguez de Ruiz-Tagle 1978). In spite of the bloodshed of the 1973 coup d'Etat, the phenomenon of torture came as a total surprise for the detainees, who had very often voluntarily surrendered themselves to the new authorities, and who, given the civil traditions of the country, expected treatment in accordance with a society subject to the law. The military government regularly denied having undertaken the practice of torture. According to Lira and Weinstein (20), this denial of such an extreme experience or horror made it even more difficult to overcome the trauma and fostered the development of chronic psychiatric pathology.

  4. Neuroreceptor imaging in psychiatric disorders

    Energy Technology Data Exchange (ETDEWEB)

    Frankle, W.G. [Columbia Univ., New York, NY, (United States). Coll. of Physicians and Surgeons; Laruelle, M. [Columbia Univ., New York, NY (United States). New York State Psychiatric Inst.

    2002-11-01

    Molecular imaging, the study of receptors, transporters and enzymes, as well as other cellular processes, has grown in recent years to be one of the most active neuroimaging areas. The application of single photon emission tomography (SPECT) and positron emission tomography (PET) techniques to the study of psychiatric illness has lead to increased understanding of disease processes as well as validated, in vivo, theories of illness etiology. Within the field of psychiatry these techniques have been applied most widely to the study of schizophrenia. Studies within schizophrenia are largely limited to either the dopamine or serotonin system. This is due in large part to the availability of suitable radiotracers as well as the current theories on the etiology of the illness. Two basic study designs are used when studying schizophrenia using molecular imaging and make up the majority of studies reviewed in this manuscript. The first type, termed ''clinical studies'', compares the findings from PET and SPECT studies in those with schizophrenia to normal controls in an attempt to understand the pathophysiology of the illness. The second study design, termed ''occupancy studies'', uses these techniques to enhance the understanding of the mechanism of action of the medications used in treating this illness. This review will focus on the findings of molecular imaging studies in schizophrenia, focusing, for the most part, on the serotonin and dopamine systems. Emphasis will be placed on how these findings and techniques are currently being used to inform the development of novel treatments for schizophrenia. (author)

  5. Radiation Therapy

    Science.gov (United States)

    Radiation therapy is a cancer treatment. It uses high doses of radiation to kill cancer cells and stop them from ... half of all cancer patients receive it. The radiation may be external, from special machines, or internal, ...

  6. Laboratory for Calibration of Gamma Radiation Measurement Instruments (LabCal) of Institute of Chemical, Biological, Radiological and Nuclear Defense (IDQBRN) from Brazilian Army Technology Center (CTEx); Laboratorio de Calibracao de Instrumentode Medicao de Radiacao Gama (LabCal) do IDQBRN do CTEx

    Energy Technology Data Exchange (ETDEWEB)

    Amorim, Aneuri de; Balthar, Mario Cesar V.; Santos, Avelino; Vilela, Paulo Ricardo T. de; Oliveira, Luciano Santa Rita; Penha, Paulo Eduardo C. de Oliveira; Gonzaga, Roberto Neves; Andrade, Edson Ramos de; Oliveira, Celio Jorge Vasques de; Fagundes, Luiz Cesar S., E-mail: aneurideamorim@gmail.com [Centro Tecnologico do Exercito (DQBRN/CTEx), Rio de Janeiro, RJ (Brazil). Instituto de Defesa Quimica, Biologica, Radiologica e Nuclear

    2016-07-01

    This paper describes the calibration laboratory deployment steps (LABCAL) gamma ionizing radiation measuring instruments in the Army Technology Center, CTEx. Initially the calibration of radiation monitors will be held in the dosimetric quantity air kerma and operational quantity ambient dose equivalent H*(d). The LABCAL / CTEx has not yet authorized by CASEC / CNEN. This laboratory aims to calibrate the ionizing radiation instruments used by the Brazilian Army. (author)

  7. Perpetuating stigma? Differences between advertisements for psychiatric and non-psychiatric medication in two professional journals.

    Science.gov (United States)

    Foster, Juliet L H

    2010-02-01

    Continuing debates regarding advertising and the pharmaceutical industry, and others detailing the continued stigmatization of mental health problems. To establish whether there are any differences in advertisements for psychiatric and non-psychiatric medication aimed at health professionals. Quantitative (t-tests, Chi-squared) and qualitative analysis of all unique advertisements for medication that appeared in two professional journals (the British Medical Journal and the British Journal of Psychiatry) between October 2005 and September 2006 was undertaken. Close attention was paid to both images and text used in the advertisements. Significant differences were found between advertisements for psychiatric and non-psychiatric medication in both quantitative and qualitative analysis: advertisements for psychiatric medication contain less text and are less likely to include specific information about the actual drug than non-psychiatric medication advertisements; images used in advertisements for psychiatric medication are more negative than those used for non-psychiatric medication, and are less likely to portray people in everyday situations. A distinction between mental health problems and other forms of ill health is clearly being maintained in medication advertisements; this has potentially stigmatizing consequences, both for professional and public perceptions. There are also troubling implications in light of the debates surrounding Direct to Consumer Advertising.

  8. Psychiatric disorders among the elderly on non-psychiatric wards in an African setting.

    Science.gov (United States)

    Nakasujja, Noeline; Musisi, Seggane; Walugembe, James; Wallace, Daphne

    2007-08-01

    The elderly are vulnerable to illness and particularly to psychiatric illness. Many mentally ill elderly patients end up on non-psychiatric wards owing to somatization of their illnesses. Even for these patients, a psychiatric diagnosis may not be made. The literature on the elderly in Uganda is very scanty. This study aims to establish the prevalence and factors associated with psychiatric disorders among elderly patients admitted to non-psychiatric wards. We carried out a descriptive cross-sectional study of 127 consenting elderly patients. They were administered a standardized questionnaire comprising the Self Reporting Questionnaire 25, the Mini-mental State Examination and the Structured Clinical Interview for the Diagnostic and Statistical Manual IV. Study variables included socio-demographic characteristics, physical illnesses, psychiatric disorders and the treatment given. The rate of psychiatric morbidity was 48%. The sex ratio was 1:1; however, women had a higher rate of psychiatric illness than men, 54.6% and 41.3% respectively. Being widowed or separated and having cancer were associated with SRQ>5, p=0.02 and p=0.04 respectively. Depressive disorders were the most common at 25.2% and were more common in women. Increasing age was associated with dementia (pUganda. Particular attention should be given to the psychological health of elderly people admitted to general hospitals.

  9. Psychiatric Service Use and Psychiatric Disorders in Adults with Intellectual Disability

    Science.gov (United States)

    Bhaumik, S.; Tyrer, F. C.; McGrother, C.; Ganghadaran, S. K.

    2008-01-01

    Background: UK policies aim to facilitate access to general psychiatric services for adults with intellectual disability (ID). If this is to be achieved, it is important to have a clear idea of the characteristics and proportion of people with ID who currently access specialist psychiatric services and the nature and extent of psychiatric…

  10. Impact of social-psychiatric services and psychiatric clinics on involuntary admissions.

    Science.gov (United States)

    Emons, Barbara; Haussleiter, Ida Sybille; Kalthoff, Jörg; Schramm, Anja; Hoffmann, Knut; Jendreyschak, Jasmin; Schaub, Markus; Armgart, Carina; Juckel, Georg; Illes, Franciska

    2014-11-01

    Germany provides a wide range of highly developed mental health care to its citizens. The aim of this study was to identify factors influencing the voluntariness of admissions to psychiatric hospitals. Especially the impact of demographic factors of the region, characteristics of the psychiatric hospitals and characteristics of the psychosocial services was analyzed. A retrospective analysis of hospital admission registers from 13 German adult psychiatric hospitals in 2009 was conducted. Public data on the regional psychiatric accommodation and demographic situation were added. Hospitals were dichotomously divided according to their index of involuntary admissions. Group comparisons were performed between the clinics with low and high involuntary admission indices. Analysis was conducted with clinical, psychiatric provision and demographic data related to inpatients in the Landschaftsverbands Westfalen-Lippe (LWL)-PsychiatryNetwork. Especially the range of services provided by the social-psychiatric services in the region such as number of supervised patients and home visits had an influence on the proportion of involuntary admissions to a psychiatric hospital. Some demographic characteristics of the region such as discretionary income showed further influence. Contrary to our expectations, the characteristics of the individual hospital seem to have no influence on the admission rate. Social-psychiatric services show a preventive impact on involuntary acute psychiatry interventions. Sociodemographic factors and patient variables play a role with regard to the number of involuntary hospitalizations, whereas characteristics of hospitals seemed to play no role. © The Author(s) 2013.

  11. Genetic Counselling for Psychiatric Disorders: Accounts of Psychiatric Health Professionals in the United Kingdom.

    Science.gov (United States)

    Jenkins, Sian; Arribas-Ayllon, Michael

    2016-12-01

    Genetic counselling is not routinely offered for psychiatric disorders in the United Kingdom through NHS regional clinical genetics departments. However, recent genomic advances, confirming a genetic contribution to mental illness, are anticipated to increase demand for psychiatric genetic counselling. This is the first study of its kind to employ qualitative methods of research to explore accounts of psychiatric health professionals regarding the prospects for genetic counselling services within clinical psychiatry in the UK. Data were collected from 32 questionnaire participants, and 9 subsequent interviewees. Data analysis revealed that although participants had not encountered patients explicitly demanding psychiatric genetic counselling, psychiatric health professionals believe that such a service would be useful and desirable. Genomic advances may have significant implications for genetic counselling in clinical psychiatry even if these discoveries do not lead to genetic testing. Psychiatric health professionals describe clinical genetics as a skilled profession capable of combining complex risk communication with much needed psychosocial support. However, participants noted barriers to the implementation of psychiatric genetic counselling services including, but not limited to, the complexities of uncertainty in psychiatric diagnoses, patient engagement and ethical concerns regarding limited capacity.

  12. Use of mobile device technology to continuously collect patient-reported symptoms during radiation therapy for head and neck cancer: A prospective feasibility study

    Directory of Open Access Journals (Sweden)

    Aaron D. Falchook, MD

    2016-04-01

    Conclusions: A substantial percentage of patients used mobile devices to continuously report symptoms throughout a course of radiation therapy for head and neck cancer. Future studies should evaluate the impact of mobile device symptom reporting on improving patient outcomes.

  13. Radiation therapy physics

    CERN Document Server

    1995-01-01

    The aim of this book is to provide a uniquely comprehensive source of information on the entire field of radiation therapy physics. The very significant advances in imaging, computational, and accelerator technologies receive full consideration, as do such topics as the dosimetry of radiolabeled antibodies and dose calculation models. The scope of the book and the expertise of the authors make it essential reading for interested physicians and physicists and for radiation dosimetrists.

  14. Synchrotron radiation sources

    Energy Technology Data Exchange (ETDEWEB)

    van Steenbergen, A.

    1979-01-01

    As a result of the exponential growth of the utilization of synchrotron radiation for research in the domain of the material sciences, atomic and molecular physics, biology and technology, a major construction activity has been generated towards new dedicated electron storage rings, designed optimally for synchrotron radiation applications, also, expansion programs are underway at the existing facilities, such as DORIS, SPEAR, and VEPP. In this report the basic properties of synchrotron radiation will be discussed, a short overview will be given of the existing and new facilities, some aspects of the optimization of a structure for a synchrotron radiation source will be discussed and the addition of wigglers and undulators for spectrum enhancement will be described. Finally, some parameters of an optimized synchrotron radiation source will be given.

  15. Occupational radiation doses in the non nuclear technology field in Sweden from 1999 to 2005; Personalstraaldoser inom vaard, forskning och icke kaernteknisk industri i Sverige under 1999-2005

    Energy Technology Data Exchange (ETDEWEB)

    Danestig Sjoegren, Catarina

    2007-04-15

    This report presents a summary of occupational radiation doses among personnel within non nuclear technology fields in Sweden from 1999 to 2005. During this time of period the collective dose has varied from 1.2 to 1.6 manSv, where the largest contribution comes from employees in the medical field. The highest mean doses are received within the field of industrial radiography, medical radiology, and nuclear medicine. Especially from employees working with interventional radiology and who are handling open sources. The highest individual doses have been registered by industrial radiographers, who at two different occasions received radiation doses above the defined limit value. The statistical data of the national dose register shows that a lot of employers are deficient in adequate knowledge about when and of whom personal radiation doses shall be measured. Neither do they have sufficient knowledge about when the doses shall be reported to the national dose register. Therefore SSI identifies a need of information and clarification of the routines of occupational radiation dose measurement and reporting.

  16. Psychiatric Disability in Law Enforcement Officers.

    Science.gov (United States)

    Price, Marilyn

    2017-03-01

    Law enforcement officers all across the world are exposed to violence, confrontation, and traumatic incidents. They regularly witness death and suffering and are at risk of personal injury. Psychiatric sequelae include an increased risk for trauma-related symptoms, depression, alcohol-use disorders, and stress-related medical conditions. Law enforcement officers have been applying for early disability retirement pensions at an increased rate for stress-related psychiatric and medical conditions. As a result, law enforcement agencies are prematurely losing valuable resources, officers with training and experience. Departments have become proactive in trying to address mental health issues to prevent psychiatric disability by implementing employee wellness plans and stress reduction interventions. Programs have been developed to mitigate the effects of stress on law enforcement personnel. Many law enforcement agencies have developed strategies to encourage early confidential referral for psychiatric treatment. They utilize peer support groups and employee assistance programs and develop alliances with mental health professionals. When these approaches fail, a fitness for duty process can be used to identify impairment in work functioning due to psychiatric factors with the prospect of later returning the officer to full duty. Copyright © 2017 John Wiley & Sons, Ltd. Copyright © 2017 John Wiley & Sons, Ltd.

  17. Psychiatric care in the German prison system.

    Science.gov (United States)

    Lehmann, Marc

    2012-01-01

    The purpose of this paper is to describe the nature of medical care within the German penal system. German prison services provide health care for all inmates, including psychiatric care. The reached level of equivalence of care and ethical problems and resource limitations are discussed and the way of legislation in this field since 2006 reform on federal law is described. The article summarizes basic data on German prison health care for mentally ill inmates. The legislation process and factors of influence are pointed out. A description of how psychiatric care is organized in German prisons follows. It focuses on the actual legal situation including European standards of prison health care and prevention of torture, psychiatric care in German prisons themselves, self harm and addiction. Associated problems such as blood born diseases and tuberculosis are included. The interactions between prison staff and health care personal and ethic aspects are discussed. The legislation process is still going on and there is still a chance to improve psychiatric care. Mental health problems are the major challenge for prison health care. Factors such as special problems of migrants, shortage of professionals and pure statistic data are considered. The paper provides a general overview on psychiatric services in prison and names weak points and strengths of the system.

  18. Psychiatric comorbidities in women with celiac disease.

    Science.gov (United States)

    Arigo, Danielle; Anskis, Alicia M; Smyth, Joshua M

    2012-03-01

    Although the physical consequences of Celiac Disease are well studied, less is known about co-occurring psychiatric symptoms. This study examines psychiatric risk and comorbidities of women with Celiac Disease, who may be at increased risk for psychiatric symptoms (e.g. depression, and disordered eating behaviours). Women (N = 177) with Celiac Disease responded to an extensive web-mediated survey assessing dietary compliance, illness symptoms, psychiatric functioning, and disordered eating. Despite high reported dietary compliance, patients reported marked illness symptoms and impaired quality of life. A substantial minority endorsed symptoms that met criteria for the diagnosis of psychiatric disorders: 37% (n = 65) met the threshold suggesting depression, and 22% (n = 39) for disordered eating. Participants whose symptoms exceeded these clinical thresholds reported greater perceived stress and reduced overall mental health, relative to women below the clinical cutoffs. Despite largely adhering to a gluten-free diet, a substantial subset of women with Celiac Disease report clinically relevant symptoms of depression and disordered eating; such symptoms are associated with increased psychosocial distress in other domains. These results suggest potential to improve the patient well-being through attention to psychosocial care, in addition to existing dietary recommendations for individuals with Celiac Disease.

  19. Impulse control disorders in adult psychiatric inpatients.

    Science.gov (United States)

    Grant, Jon E; Levine, Laura; Kim, Daniel; Potenza, Marc N

    2005-11-01

    The authors' goal was to examine the prevalence of impulse control disorders in psychiatric inpatients. They used the Minnesota Impulsive Disorders Interview, a semistructured clinical interview assessing pathological gambling, trichotillomania, kleptomania, pyromania, intermittent explosive disorder, compulsive buying, and compulsive sexual behavior, to screen 204 consecutively admitted psychiatric inpatients. One hundred twelve of the inpatients were women (54.9%), and the mean age of the 204 inpatients was 40.5 years (SD=13.2, range=18-83). Patients whose screen was positive for an impulse control disorder were evaluated with structured clinical interviews. Sixty-three patients (30.9%) were diagnosed with at least one current impulse control disorder. The most common impulse control disorders were compulsive buying (N=19 [9.3%]), kleptomania (N=16 [7.8%]), and pathological gambling (N=14 [6.9%]). Patients with and without co-occurring impulse control disorders did not differ significantly from each other on demographic measures or number or type of psychiatric diagnoses other than impulse control disorders. Impulse control disorders appear common among psychiatric inpatients. Additional, larger studies are needed to examine the prevalence of impulse control disorders in the general population and specific psychiatric groups.

  20. [Circadian rhythm sleep disorders in psychiatric diseases].

    Science.gov (United States)

    Bromundt, Vivien

    2014-11-01

    Circadian rhythm sleep disorders are prevalent among psychiatric patients. This is most probable due to a close relationship between functional disturbances of the internal clock, sleep regulation and mental health. Mechanisms on molecular level of the circadian clock and neurotransmitter signalling are involved in the development of both disorders. Moreover, circadian disorders and psychiatric diseases favour each other by accessory symptoms such as stress or social isolation. Actimetry to objectively quantify the rest-activity cycle and salivary melatonin profiles as marker for the circadian phase help to diagnose circadian rhythm sleep disorders in psychiatric patients. Chronotherapeutics such as bright light therapy, dark therapy, melatonin administration, and wake therapy are used to synchronise and consolidate circadian rhythms and help in the treatment of depression and other psychiatric disorders, but are still neglected in medicine. More molecular to behavioural research is needed for the understanding of the development of circadian disorders and their relationship to psychiatric illnesses. This will help to boost the awareness and treatment of circadian rhythm sleep disorders in psychiatry.

  1. Psychiatric screening of admissions to an accident and emergency ward.

    Science.gov (United States)

    Bell, G; Reinstein, D Z; Rajiyah, G; Rosser, R

    1991-04-01

    One hundred medical and surgical patients admitted to an accident and emergency ward were screened for psychiatric disorder. A psychiatric diagnosis was made in 37 patients, 32 of whom were correctly identified by the GHQ. Psychiatric morbidity was associated with being single, lower social class, unemployment, homelessness and living in Bloomsbury Health District or north-east London. It was also associated with not being registered with a GP. The 14 overdose patients were no more likely to receive a psychiatric diagnosis than other patients, yet constituted most of the psychiatric referrals. Few patients were asked by medical staff about emotional worries or problems. A desire to be asked such questions and a past psychiatric history were associated with a psychiatric diagnosis. Routine screening of psychiatric morbidity in both medical and surgical patients and appropriate psychiatric referral of identified patients is recommended. A system of facilitating GP registration is necessary, as much of the morbidity identified could be contained within primary care.

  2. Microfabrication using synchrotron radiation

    Energy Technology Data Exchange (ETDEWEB)

    Tolfree, D.W.L. [CCLRC Daresbury Laboratory, Warrington, Cheshire (United Kingdom)

    1998-04-01

    The realization of precision deep microstructures requires high-energy, intense parallel beams of x-rays from synchrotron radiation sources and novel process technology. Deep x-ray lithography with synchrotron radiation is basically a shadow printing process in which a two-dimensional pattern is accurately transferred from a mask into a resist material by chemical changes induced by the radiation. Subsequent electroforming and moulding processes are used to manufacture microstructures from metals, plastics and ceramics. This process, known as LIGA (LIthographie, Galvanoformung, and Abformung), first developed in Germany, is based on a combination of lithography, electroforming and replication processes. The development of the LIGA process for the fabrication of a wide range of precision microstructures has been stimulated by the increasing use of synchrotron radiation sources for lithography. Applications for microstructures exist in many sectors of industry. These include chemical and process engineering, biomedical instrumentation, automotive and aerospace technology, environmental monitoring and information technology. Emphasis is placed on three main areas, micromechanics, micro-optics and microfluidics, which are emerging with the widest range of industrial applications. This paper reviews the progress being made in microfabrication technology using x-ray beam lithography and the LIGA process. It includes a description of synchrotron radiation, storage ring sources, the fabrication processes, applications and potential markets. Reference is also made to European networks and R and D activity worldwide. (author)

  3. Negative rumor: contagion of a psychiatric department.

    Science.gov (United States)

    Novac, Andrei; McEwan, Stephanie; Bota, Robert G

    2014-01-01

    Over the past few decades, a sizable body of literature on the effects of rumors and gossip has emerged. Addressing rumors in the workplace is an important subject, as rumors have a direct impact on the quality of the work environment and also on the productivity and creativity of the employees. To date, little has been written on the effect of rumors and gossip in psychiatric hospitals. This article presents case vignettes of rumors spread in psychiatric hospitals and the impact on team cohesion and morale among the staff implicated in these, too often, neglected occurrences. Dynamic aspects with particular focus on rumors in psychiatric units and suggestions for remedy and treatment are presented.

  4. Psychiatric Problems in Patients with Breast Cancer

    Directory of Open Access Journals (Sweden)

    Munevver Tunel

    2012-06-01

    Full Text Available Cancer is a physical disorder with concurrent mental and social components. During cancer, the feelings of fear, hopelessness, guilt, helplessness, abandonment perceived as a crisis leading to destruction in the suffering person. Breast cancer is the most common type of cancer among women. Prevalence of psychiatric disorders among cancer patients is approximately 50% and most of disorders are related with the occurrence of cancer and cancer treatment. Majority of patients present with major depression, adjustment disorder, anxiety disorders, sleep disorders, suicidial ideation, and delirium. Treatment of psychiatric disorders and cancer therapy should be conducted along with special consideration of drug interactions. This article reviews the adaptation process experienced by individuals during diagnosis and treatment of breast cancer, it psychological effects, resulting psychiatric comorbidites and their treatments. [Archives Medical Review Journal 2012; 21(3.000: 189-219

  5. An interprofessional psychiatric advanced pharmacy practice experience.

    Science.gov (United States)

    Goldstone, Lisa W; Cooley, Janet

    2013-08-12

    To create an interprofessional psychiatry advanced pharmacy practice experience (APPE) and assess the initial outcomes. An elective psychiatry APPE was developed in a setting of interdisciplinary practice. Preceptor responsibilities were shared between a psychiatric pharmacist and an attending psychiatrist or psychiatric nurse practitioner. Students were also given the opportunity to shadow and work with other health care professionals such as nurses, social workers, therapists, family nurse practitioners, and utilization review staff members. Midpoint and final evaluations demonstrated student advancement throughout the experience as well as the development of communication skills with patients and an increased ability to work collaboratively with other health care providers. Students rated this practice experience highly and their comments reflected achievement of the established learning objectives. An interdisciplinary elective practice experience in psychiatry at a local teaching hospital was effective in teaching psychiatric care and interprofessional interaction. This teaching model can be adapted for use in other practice settings or specialty areas.

  6. Psychiatric history in living kidney donor candidates.

    Science.gov (United States)

    Nishimura, Katsuji; Kobayashi, Sayaka; Ishigooka, Jun

    2012-04-01

    To critically discuss recent studies of living kidney donor candidates with a past or current psychiatric history and to offer guidance for the psychosocial evaluation of such donors. A global consensus has been developed that active, significant mental illness and substance abuse are absolute contraindications to organ donation due to diminished ability to make a well informed, rational decision about donation or to maintain health status after donation. However, to date, there has been little information published on the suitability for donation and the long-term psychosocial and medical outcomes after donation in donors with mental health issues, especially relatively milder psychiatric disorders, or past significant psychiatric history. To resolve the ethical dilemma of whether living donor candidates with mental health issues should be allowed to donate as is their right or be considered a vulnerable group in need of protection, we need more information. Information should include careful evaluation, possible intervention and follow-up to optimize donation.

  7. Ayahuasca in adolescence: a preliminary psychiatric assessment.

    Science.gov (United States)

    Da Silveira, Dartiu Xavier; Grob, Charles S; de Rios, Marlene Dobkin; Lopez, Enrique; Alonso, Luisa K; Tacla, Cristiane; Doering-Silveira, Evelyn

    2005-06-01

    Ayahuasca is believed to be harmless for those (including adolescents) drinking it within a religious setting. Nevertheless controlled studies on the mental/ psychiatric status of ritual hallucinogenic ayahuasca concoction consumers are still lacking. In this study, 40 adolescents from a Brazilian ayahuasca sect were compared with 40 controls matched on sex, age, and educational background for psychiatric symptomatology. Screening scales for depression, anxiety, alcohol consumption patterns (abuse), attentional problems, and body dysmorphic disorders were used. It was found that, compared to controls, considerable lower frequencies of positive scoring for anxiety, body dismorphism, and attentional problems were detected among ayahuasca-using adolescents despite overall similar psychopathological profiles displayed by both study groups. Low frequencies of psychiatric symptoms detected among adolescents consuming ayahuasca within a religious context may reflect a protective effect due to their religious affiliation. However further studies on the possible interference of other variables in the outcome are necessary.

  8. Psychiatric conditions in an evolutionary context.

    Science.gov (United States)

    Fabrega Jr, Horacio

    2004-01-01

    Psychiatric conditions and the institutions and practices that modern society has evolved to handle them originated during the nineteenth century in Anglo European societies. They are products of a historically contingent and culture specific formulation of a class of social problems of behavior that came to the fore in relation to intellectual and political economic changes of those societies. However, such problems have a long ancestry. They are intrinsic to human species and the social and cultural systems that its members have evolved since their emergence. This article reviews intellectual quandaries raised by evolutionary study of psychiatric conditions, those of crossing the human/animal divide and crossing historically contingent cultures; and of framing history of psychiatry in terms of social and cultural evolution. The biological architecture underlying psychiatric conditions and the breakthroughs that indigenous psychiatry of different types of societies underwent in formulating signs and symptoms are discussed. Copyright (c) 2004 S. Karger AG, Basel.

  9. Indian – American contributions to psychiatric research

    Science.gov (United States)

    Pandurangi, Anand K.

    2010-01-01

    The Indian Diaspora, especially in North America, is a visible force in the field of psychiatric medicine. An estimated 5000 persons of Indian origin practice psychiatry in the USA and Canada, and an estimated 10% of these are in academic psychiatry. Wide ranging contributions, from molecular biology of psychiatric disorders to community and cultural psychiatry, are being made by this vibrant group of researchers. This article is a brief summary and work-in-progress report of the contributions by Indian – American psychiatric researchers. Although not exhaustive in coverage, it is meant to give the reader an overview of the contributions made by three waves of researchers over a span of 50 years. PMID:21836715

  10. Ethical Challenges in Psychiatric Administration and Leadership.

    Science.gov (United States)

    Moffic, H Steven; Saeed, Sy Atezaz; Silver, Stuart; Koh, Steve

    2015-09-01

    As with all professional ethical principles, those in psychiatry have to evolve over time and societal changes. The current ethical challenges for psychiatric administration and leadership, especially regarding for-profit managed care, need updated solutions. One solution resides in the development by the American Association of Psychiatric Administrators (AAPA) of the first set of ethical principles designed specifically for psychiatric administrators. These principles build on prior Psychological Theories of leadership, such as those of Freud, Kernberg, and Kohut. Supplementing these theories are the actual real life models of psychiatrist leadership as depicted in the memoirs of various psychiatrists. Appreciating these principles, theories, and models may help emerging leaders to better recognize the importance of ethical challenges. A conclusion is that psychiatrists should have the potential to assume more successful leadership positions once again. In such positions, making the skills and well-being of all in the organization seems now to be the foremost ethical priority.

  11. Attitudes of young adults to prenatal screening and genetic correction for human attributes and psychiatric conditions.

    Science.gov (United States)

    Milner, K K; Collins, E E; Connors, G R; Petty, E M

    1998-03-05

    With recent advances in DNA technology, questions have arisen as to how this technology should be appropriately used. In this article, results obtained from a survey designed to elicit attitudes of college students to prenatal testing and gene therapy for human attributes and psychiatric conditions are reported. The eleven hypothetical disease phenotypes included schizophrenia, alcoholism, tendency toward violent behavior, attention deficit/hyperactivity disorder, depression requiring medical treatment, obesity, involvement in "dangerous" sports activities, homosexuality, borderline normal IQ (80-100), proportional short stature, and inability to detect perfect pitch. Most students supported prenatal genetic testing for psychiatric disorders and behavior that might result in harm to others (i.e., tendency towards violent behavior) and found prenatal genetic testing for human attributes less desirable. However, the lack of unilateral agreement or disagreement toward any one condition or attribute suggests the potential difficulties ahead in the quest for guidelines for the application of new technologies available to manipulate the human genome.

  12. Negative Rumor: Contagion of a Psychiatric Department

    OpenAIRE

    Novac, Andrei; McEwan, Stephanie; Bota, Robert G

    2014-01-01

    Over the past few decades, a sizable body of literature on the effects of rumors and gossip has emerged. Addressing rumors in the workplace is an important subject, as rumors have a direct impact on the quality of the work environment and also on the productivity and creativity of the employees. To date, little has been written on the effect of rumors and gossip in psychiatric hospitals. This article presents case vignettes of rumors spread in psychiatric hospitals and the impact on team cohe...

  13. Onconeural Antibodies in Acute Psychiatric Inpatient Care

    DEFF Research Database (Denmark)

    Sæther, Sverre Georg; Schou, Morten; Stoecker, Winfried

    2017-01-01

    Paraneoplastic neurological disorders associated with onconeural antibodies often appear with neuropsychiatric symptoms. To study the prevalence of onconeural antibodies in patients admitted to acute psychiatric inpatient care, the serum of 585 such patients was tested for antibodies targeting MOG......, GLRA1B, DPPX, GRM1, GRM5, DNER, Yo, ZIC4, GAD67, amphiphysin, CV2, Hu, Ri, Ma2, and recoverin. Only one sample was positive (antirecoverin IgG). The present findings suggest that serum onconeural antibody positivity is rare among patients acutely admitted for inpatient psychiatric care. The clinical...

  14. Psychiatric emergency services in Copenhagen 2012

    DEFF Research Database (Denmark)

    Moltke, Katinka; Høegh, Erica B; Sæbye, Ditte

    2015-01-01

    BACKGROUND: Since the first publication of the psychiatric emergency units (PEUs) in Copenhagen 1985, outpatient facilities have undergone considerable changes. Our aim is to examine how these changes have influenced the activities in the PEUs in the same catchment area. METHODS: We conducted...... reduced the number of visits in the PEUs considerably. The results have shown a change of diagnostic distribution and more severe conditions requiring acute admissions for emergency treatment. Close collaboration with the patients' families, GPs, social authorities and specialized psychiatric outpatient...

  15. The geriatric population and psychiatric medication.

    Science.gov (United States)

    Varma, Sannidhya; Sareen, Himanshu; Trivedi, J K

    2010-01-01

    With improvement in medical services in the last few years, there has been a constant rise in the geriatric population throughout the world, more so in the developing countries. The elderly are highly prone to develop psychiatric disorders, probably because of age related changes in the brain, concomitant physical disorders, as well as increased stress in later life. Psychiatric disorders in this population may have a different presentation than in other groups and some of psychopathologies might be mistaken for normal age related changes by an unwary clinician. Therefore the need of the day is to train psychiatrists and physicians to better recognize and manage mental disorders in this age group.

  16. Psychobiotics: An emerging probiotic in psychiatric practice

    Directory of Open Access Journals (Sweden)

    Arunava Kali

    2016-06-01

    Full Text Available Intestinal microbial flora plays critical role in maintenance of health. Probiotic organisms have been recognized as an essential therapeutic component in the treatment of intestinal dysbiosis. Current research suggests their health benefits extends beyond intestinal disorders. The neuroactive molecules produced by the gut microbiota has been found to modulate neural signals which affect neurological and psychiatric parameters like sleep, appetite, mood and cognition. Use of these novel probiotics opens up the possibility of restructuring of intestinal microbiota for effective management of various psychiatric disorders.

  17. Dissociative identity disorder in psychiatric inpatients.

    Science.gov (United States)

    Rifkin, A; Ghisalbert, D; Dimatou, S; Jin, C; Sethi, M

    1998-06-01

    The aim of this study was to replicate reports of a high rate of dissociative identity disorder in psychiatric inpatients. Subjects were 100 randomly selected women, 16-50 years old, who had recently been admitted to an acute psychiatric hospital. Diagnoses were made by two interviewers through use of the Structured Clinical Interview for DSM-IV Dissociative Disorders. One percent (N = 1) of the interviewed subjects had dissociative identity disorder. Contrary to previous studies, the authors found a low rate of dissociative identity disorder, perhaps because of the different methodology used.

  18. Psychiatric (Axis I) and personality (Axis II) disorders and subjective psychiatric symptoms in chronic tinnitus.

    Science.gov (United States)

    Sahlsten, Hanna; Taiminen, Tero; Karukivi, Max; Sjösten, Noora; Nikkilä, Johanna; Virtanen, Juuso; Paavola, Janika; Joutsa, Juho; Niinivirta-Joutsa, Katri; Takala, Mari; Holm, Anu; Rauhala, Esa; Löyttyniemi, Eliisa; Johansson, Reijo; Jääskeläinen, Satu K

    2017-11-30

    Chronic tinnitus has been associated with several psychiatric disorders. Only few studies have investigated these disorders using validated diagnostic interviews. The aims were to diagnose psychiatric and personality disorders with structured interviews, to assess self-rated psychiatric symptoms and elucidate temporal relations between psychiatric disorders and tinnitus. Current and lifetime DSM-IV diagnoses of axis-I (psychiatric disorders) and axis-II (personality disorders) were assessed using structured clinical interviews (SCID-I and -II). Current subjective psychiatric symptoms were evaluated via self-rating instruments: the Symptom Check List-90 (SCL-90), the Beck Depression Inventory, and the Dissociative Experiences Scale (DES). 83 patients (mean age 51.7, 59% men) with chronic, disturbing tinnitus and a median Tinnitus Handicap Inventory score of 32. The rates of lifetime and current major depression were 26.5% and 2.4%. The lifetime rate of obsessive-compulsive personality disorder (type C) was 8.4%. None of the patients had cluster B personality disorder or psychotic symptoms. The SCL-90 subscales did not differ from the general population, and median DES score was low, 2.4. Tinnitus patients are prone to episodes of major depression and often also have obsessive-compulsive personality features. Psychiatric disorders seem to be comorbid or predisposing conditions rather than consequences of tinnitus. Clinical trial reference: ClinicalTrials.gov (ID NCT 01929837).

  19. APPLICATIONS OF LASERS AND OTHER TOPICS IN LASER PHYSICS AND TECHNOLOGY: Influence of atmospheric fluctuations of the induced temperature on the characteristics of laser radiation

    Science.gov (United States)

    Banakh, Viktor A.; Smalikho, I. N.

    1987-10-01

    The expression for the function representing the second-order mutual coherence of a laser beam propagating in a turbulent atmosphere under thermal self-interaction conditions is derived in the aberration-free approximation. An analysis is made of the width of a beam, its wind refraction, and the radius of coherence as a function of the initial coherence of the radiation, of conditions of diffraction on the transmitting aperture, and of fluctuations of the wind velocity. It is shown that on increase in the power the coherence radius of cw laser radiation first increases because of thermal defocusing and then decreases due to the appearance (because of fluctuations of the wind velocity) of induced temperature inhomogeneities in air in the beam localization region. The conditions under which fluctuations of the induced temperature have a significant influence on the coherence of the radiation are determined.

  20. Novel technologies and theoretical models in radiation therapy of cancer patients using 6.3 MeV fast neutrons produced by U-120 cyclotron

    Energy Technology Data Exchange (ETDEWEB)

    Musabaeva, L. I., E-mail: musabaevaLI@oncology.tomsk.ru; Lisin, V. A., E-mail: Lisin@oncology.tomsk.ru [Tomsk Cancer Research Institute, Kooperativny Street 5, Tomsk, 634050 (Russian Federation); Startseva, Zh. A., E-mail: zhanna.alex@rambler.ru; Gribova, O. V., E-mail: gribova79@mail.ru; Velikaya, V. V., E-mail: viktoria.v.v@inbox.ru [Tomsk Cancer Research Institute, Kooperativny Street 5, Tomsk, 634050 (Russian Federation); National Research Tomsk Polytechnic University, Lenin Avenue 30, Tomsk, 634050 (Russian Federation)

    2016-08-02

    The analysis of clinical use of neutron therapy with 6 MeV fast neutrons compared to conventional radiation therapy was carried out. The experience of using neutron and mixed neutron and photon therapy in patients with different radio-resistant malignant tumors shows the necessity of further studies and development of the novel approaches to densely-ionizing radiation. The results of dosimetry and radiobiological studies have been the basis for planning clinical programs for neutron therapy. Clinical trials over the past 30 years have shown that neutron therapy successfully destroys radio-resistant cancers, including salivary gland tumors, adenoidcystic carcinoma, inoperable sarcomas, locally advanced head and neck tumors, and locally advanced prostate cancer. Radiation therapy with 6.3 MeV fast neutrons used alone and in combination with photon therapy resulted in improved long-term treatment outcomes in patients with radio-resistant malignant tumors.

  1. In-Space technology experiments program. A high efficiency thermal interface (using condensation heat transfer) between a 2-phase fluid loop and heatpipe radiator: Experiment definition phase

    Science.gov (United States)

    Pohner, John A.; Dempsey, Brian P.; Herold, Leroy M.

    1990-01-01

    Space Station elements and advanced military spacecraft will require rejection of tens of kilowatts of waste heat. Large space radiators and two-phase heat transport loops will be required. To minimize radiator size and weight, it is critical to minimize the temperature drop between the heat source and sink. Under an Air Force contract, a unique, high-performance heat exchanger is developed for coupling the radiator to the transport loop. Since fluid flow through the heat exchanger is driven by capillary forces which are easily dominated by gravity forces in ground testing, it is necessary to perform microgravity thermal testing to verify the design. This contract consists of an experiment definition phase leading to a preliminary design and cost estimate for a shuttle-based flight experiment of this heat exchanger design. This program will utilize modified hardware from a ground test program for the heat exchanger.

  2. Radiation Hardened Electronics for Extreme Environments

    Science.gov (United States)

    Keys, Andrew S.; Watson, Michael D.

    2007-01-01

    The Radiation Hardened Electronics for Space Environments (RHESE) project consists of a series of tasks designed to develop and mature a broad spectrum of radiation hardened and low temperature electronics technologies. Three approaches are being taken to address radiation hardening: improved material hardness, design techniques to improve radiation tolerance, and software methods to improve radiation tolerance. Within these approaches various technology products are being addressed including Field Programmable Gate Arrays (FPGA), Field Programmable Analog Arrays (FPAA), MEMS Serial Processors, Reconfigurable Processors, and Parallel Processors. In addition to radiation hardening, low temperature extremes are addressed with a focus on material and design approaches.

  3. Valuing psychiatric patients' stories: belief in and use of the supernatural in the Jamaican psychiatric setting.

    Science.gov (United States)

    James, Caryl C A B; Carpenter, Karen A; Peltzer, Karl; Weaver, Steve

    2014-04-01

    The aim of this study was to examine illness presentation and understand how psychiatric patients make meaning of the causes of their mental illnesses. Six Jamaican psychiatric patients were interviewed using the McGill Illness Narrative Interview Schedule. Of the 6, 3 representative case studies were chosen. The hermeneutic phenomenological approach and the common sense model were used in the formulation of patients' explanatory models. Results indicate that psychiatric patients actively conceptualized the causes and resultant treatment of their mental illnesses. Patients' satisfaction and compliance with treatment were dependent on the extent to which practitioners' conceptualization matched their own, as well as practitioners' acknowledgement of patients' concerns about causation, prognosis, and treatment.

  4. The Impact of Psychiatric Patient Boarding in Emergency Departments

    Directory of Open Access Journals (Sweden)

    B. A. Nicks

    2012-01-01

    Full Text Available Objectives. Studies have demonstrated the adverse effects of emergency department (ED boarding. This study examines the impact of resource utilization, throughput, and financial impact for psychiatric patients awaiting inpatient placement. Methods. The authors retrospectively studied all psychiatric and non-psychiatric adult admissions in an Academic Medical Center ED (>68,000 adult visits from January 2007-2008. The main outcomes were ED length of stay (LOS and associated reimbursement. Results. 1,438 patients were consulted to psychiatry with 505 (35.1% requiring inpatient psychiatric care management. The mean psychiatric patient age was 42.5 years (SD 13.1 years, with 2.7 times more women than men. ED LOS was significantly longer for psychiatric admissions (1089 min, CI (1039–1140 versus 340 min, CI (304–375; <0.001 when compared to non-psychiatric admissions. The financial impact of psychiatric boarding accounted for a direct loss of ($1,198 compared to non-psychiatric admissions. Factoring the loss of bed turnover for waiting patients and opportunity cost due to loss of those patients, psychiatric patient boarding cost the department $2,264 per patient. Conclusions. Psychiatric patients awaiting inpatient placement remain in the ED 3.2 times longer than non-psychiatric patients, preventing 2.2 bed turnovers (additional patients per psychiatric patient, and decreasing financial revenue.

  5. The physics of radiation therapy

    CERN Document Server

    Khan, Faiz M

    2009-01-01

    Dr. Khan's classic textbook on radiation oncology physics is now in its thoroughly revised and updated Fourth Edition. It provides the entire radiation therapy team—radiation oncologists, medical physicists, dosimetrists, and radiation therapists—with a thorough understanding of the physics and practical clinical applications of advanced radiation therapy technologies, including 3D-CRT, stereotactic radiotherapy, HDR, IMRT, IGRT, and proton beam therapy. These technologies are discussed along with the physical concepts underlying treatment planning, treatment delivery, and dosimetry. This Fourth Edition includes brand-new chapters on image-guided radiation therapy (IGRT) and proton beam therapy. Other chapters have been revised to incorporate the most recent developments in the field. This edition also features more than 100 full-color illustrations throughout.

  6. Radiation Therapy: Professions in Radiation Therapy

    Science.gov (United States)

    ... Resources Professions Site Index A-Z Professions in Radiation Therapy Radiation Oncologist Therapeutic Medical Physicist Radiation Therapist Dosimetrist Radiation Oncology Nurse Social Worker Dietitian Radiation Oncologist Radiation oncologists are physicians who oversee the ...

  7. Asperger Syndrome: Associated Psychiatric and Medical Conditions.

    Science.gov (United States)

    Ghaziuddin, Mohammad

    2002-01-01

    This article explores the association of medical and psychiatric conditions with Asperger syndrome, based mainly on publications from the last two decades. It examines comorbidity of Asperger syndrome with mood disorders, schizophrenia, obsessive-compulsive disorder, attention deficit/hyperactivity disorder, tic disorders, violence and aggression,…

  8. [Burden of psychiatric diseases in Chile].

    Science.gov (United States)

    Vicente P, Benjamín; Kohn, Robert; Saldivia B, Sandra; Rioseco S, Pedro

    2007-12-01

    Chile has one of the highest disease burdens caused by neuropsychiatric illnesses in the world, according to WHO, reaching to 31%. Major depression and alcohol use disorders are ranked first and second in attributed disability among adults. Nearly one-third of the population has had a psychiatric disorder in their lifetime, and 22.2% in the past year. Anxiety disorders are the most prevalent conditions, followed by major depression and alcohol abuse. Currently, mental health accounts for 2.3%) of the health care budget, which is less than some neighboring countries. The availability of 1.3 psychiatric beds per 10,000 inhabitants, is less than the mean of lower-income countries. Moreover, 81% are for chronic rather than acute care. Chile has 4.0 psychiatrist per 100,000 inhabitants, which is lower than other countries in Latin America. Only 38.5% of those patients with a psychiatric diagnosis receive any kind of mental health care, whether from a specialist or primary care. There is a perception among lay persons, that psychiatric treatments lack efficacy, despite evidence demonstrating the contrary. Not addressing the treatment gap in mental health has serious public health implications.

  9. Chronic psychiatric status and satisfaction with life

    NARCIS (Netherlands)

    Arrindell, W.A.; van Nieuwenhuizen, Ch; Luteijn, F.

    The present study represents the first to administer the Satisfaction With Life Scale (SWLS) as part of a. semi-structured interview to a large sample of psychiatric patients with severe mental illness. psychometric appraisal of the SWLS demonstrated that figures on its internal structure were quite

  10. Out and Down: Incarceration and Psychiatric Disorders

    Science.gov (United States)

    Schnittker, Jason; Massoglia, Michael; Uggen, Christopher

    2012-01-01

    Psychiatric disorders are unusually prevalent among current and former inmates, but it is not known what this relationship reflects. A putative causal relationship is contaminated by assorted influences, including childhood disadvantage, the early onset of most disorders, and the criminalization of substance use. Using the National Comorbidity…

  11. Psychiatric Assessment and Rehabilitation of Burn Patients

    Directory of Open Access Journals (Sweden)

    Süleyman Akarsu

    2017-03-01

    Full Text Available Objective: Psychiatric rehabilitation has gained significance owing to improved healthcare facilities for burn injuries and decreased mortality/ morbidity rates. Burn traumas may result in psychiatric signs such as denial, anger, guilt, confusion, disgrace, anxiety, distress, and nervousness. Psychiatric disorders such as delirium, depression, anxiety, post-traumatic stress disorder, and sexual problems can also be encountered. Therefore, it is necessary to look for these signs and disorders through regular sessions with burn patients and appropriate psychometric tests. This study aims at examining the process of psychological rehabilitation for burn patients in light of the current literature. Material and Methods: This study has been carried out in the light of the main and current literature review. The study intends to put forth the data observed in the course of the psychological diagnosis, treatment and rehabilitation of burn patients. The study has been conducted in accordance with the Helsinki Declaration Guidelines. Results: Treatment and rehabilitation process requires a multidisciplinary teamwork that consists of physicians, dieticians, psychologists, social service specialists, and other healthcare workers who can meet the needs of burn patients and their families. It is necessary for the team to contribute both to the hospitalization process and the social environment of the patients and their families. Conclusion: It is observed that the quality of life of these patients can be considerably improved with the effective assessment of psychiatric signs that occur during or after the injury and with appropriate treatment methods.

  12. PSYCHIATRIC MORBIDITY IN A NIGERIAN NEUROLOGY CLINIC

    African Journals Online (AJOL)

    2013-05-28

    May 28, 2013 ... East African Medical Journal Vol. 89 No. 2 February 2012. PSYCHIATRIC MORBIDITY IN A NIGERIAN NEUROLOGY CLINIC. P. O. Ajiboye, FWACP, Senior Lecturer/ Consultant Psychiatrist, Department of Behavioural Sciences, University of Ilorin/. University of Ilorin Teaching Hospital, Ilorin, Kwara State, ...

  13. EDITORIAL PSYCHIATRIC ILLNESS AMONG JUVENILES AND ...

    African Journals Online (AJOL)

    Kateee

    2003-06-01

    Jun 1, 2003 ... PSYCHIATRIC ILLNESS AMONG JUVENILES AND ADOLESCENTS IN KENYA. Twenty years ago, FGN, ..... and adolescence may show a good deal of shift from conduct disorders to mixed ...... risk factor for both perinatal and young infant death, khat chewing during pregnancy may be one of the factors ...

  14. Sexual Attitude Reassessment for Psychiatric Patients.

    Science.gov (United States)

    Dincin, Jerry; Wise, Shirley

    1979-01-01

    Sexuality programs are one part of the program at Thresholds, a rehabilitation center for psychiatric patients (17 to 50 years old). A 16 week sexuality group includes seven phases: initial interview; beginning group development (health care, contraception, reproduction, sexuality); masturbation; intercourse; homosexuality; coed group discussion;…

  15. Psychiatric nurses' experiences with inpatient aggression

    NARCIS (Netherlands)

    Nijman, H.; Bowers, L.; Oud, N.; Jansen, G.

    2005-01-01

    Using a survey instrument, the experiences of psychiatric nurses with inpatient aggression were investigated in East London, U.K. On this "Perceptions of Prevalence Of Aggression Scale" (POPAS), annual experiences with 15 types of disruptive and aggressive behavior were rated anonymously. Staff

  16. Can Psychiatric Rehabilitation Be Core to CORE?

    Science.gov (United States)

    Olney, Marjorie F.; Gill, Kenneth J.

    2016-01-01

    Purpose: In this article, we seek to determine whether psychiatric rehabilitation principles and practices have been more fully incorporated into the Council on Rehabilitation Education (CORE) standards, the extent to which they are covered in four rehabilitation counseling "foundations" textbooks, and how they are reflected in the…

  17. PSYCHIATRIC MORBIDITY IN A NIGERIAN NEUROLOGY CLINIC

    African Journals Online (AJOL)

    2013-05-28

    May 28, 2013 ... medication effects and psychological reactions to the illness. Parkinson's disease (PD) is a good example of a disabling neurological disorder and it is now apparent that the underlying neurodegenerative disorder is a major cause of psychiatric disturbances even though the psychological reactions to the ...

  18. Psychiatric disorders and traumatic brain injury

    Directory of Open Access Journals (Sweden)

    Marcelo Schwarzbold

    2008-09-01

    Full Text Available Marcelo Schwarzbold1, Alexandre Diaz1, Evandro Tostes Martins2, Armanda Rufino1, Lúcia Nazareth Amante1,3, Maria Emília Thais1, João Quevedo4, Alexandre Hohl1, Marcelo Neves Linhares1,5,6, Roger Walz1,61Núcleo de Pesquisas em Neurologia Clínica e Experimental (NUPNEC, Departamento de Clínica Médica, Hospital Universitário, UFSC, Florianópolis, SC, Brazil; 2Unidade de Terapia Intensiva, Hospital Governador Celso Ramos, Florianópolis, SC, Brazil; 3Departamento de Enfermagem, UFSC, Florianópolis, SC, Brazil; 4Laboratório de Neurociências, UNESC, Criciúma, SC, Brazil; 5Departamento de Cirurgia, Hospital Universitário, UFSC, Florianópolis, SC, Brazil; 6Centro de Cirurgia de Epilepsia de Santa Catarina (CEPESC, Hospital Governador Celso Ramos, Florianópolis, SC, BrazilAbstract: Psychiatric disorders after traumatic brain injury (TBI are frequent. Researches in this area are important for the patients’ care and they may provide hints for the comprehension of primary psychiatric disorders. Here we approach epidemiology, diagnosis, associated factors and treatment of the main psychiatric disorders after TBI. Finally, the present situation of the knowledge in this field is discussed.Keywords: psychiatric disorders, traumatic brain injury, neuropsychiatry, diagnostic, epidemiology, pathophysiology

  19. The professional paradigm of qualified psychiatric nurses.

    Science.gov (United States)

    Lindström, U A

    1995-10-01

    The main purpose of this research was to determine the professional paradigm of the qualified psychiatric nurse and the factors influencing the formation of this paradigm. The research was both explorative and descriptive, and both qualitative and quantitative methods were used. The research approach was deductive and based on the theory of paradigm of Törnebohm. The test persons comprised three groups: Swedish-speaking Finns, Swedes and Finns. In each group there were eight students in the final stages of their psychiatric nursing training. A total of 40 questionnaires were distributed to each group. The research revealed four different characteristic types of qualified psychiatric nurses: caring science oriented, partly caring science oriented, general humanist and finally the personality- and experience-oriented. The results also indicate that there is a discrepancy between will and ability within caring. This can partly be interpreted as an expression of the discrepancy between philosophical and ideological impressions and real acts but it may partly indicate a lack of information. Many informants had difficulty naming a theoretical frame of reference for their work and stating aspects of psychiatric caring that would be important to know but on which no information so far exists. Many informants expressed the need for more research and development but did not indicate the subjects.

  20. 42 CFR 415.184 - Psychiatric services.

    Science.gov (United States)

    2010-10-01

    ... 42 Public Health 3 2010-10-01 2010-10-01 false Psychiatric services. 415.184 Section 415.184 Public Health CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT OF HEALTH AND HUMAN SERVICES... TEACHING SETTINGS, AND RESIDENTS IN CERTAIN SETTINGS Physician Services in Teaching Settings § 415.184...

  1. Prevalence and Correlates of Psychiatric Disorders among ...

    African Journals Online (AJOL)

    BACKGROUND: Research has established that psychiatric disorders are common among children and adolescents within the juvenile justice system. However, the bulk of these researches had been from the developed countries, with very limited data from sub-Sahara Africa. In a region like sub-Sahara Africa with acute ...

  2. Physician assisted death in psychiatric practice

    NARCIS (Netherlands)

    Groenewoud, J.H.; van der Maas, P.J.; van der Wal, G.; Hengeveld, M.W.; Tholen, A.J.; Schudel, W.J.; van der Heide, A.

    1997-01-01

    Background: In 1994 the Dutch Supreme Court ruled that in exceptional instances, physician-assisted suicide might be justifiable for patients with unbearable mental suffering but no physical illness. We studied physician- assisted suicide and euthanasia in psychiatric practice in the Netherlands.

  3. SPECIFIC PSYCHIATRIC MORBIDITY AMONG DIABETICS AT A ...

    African Journals Online (AJOL)

    hi-tech

    2000-01-01

    Jan 1, 2000 ... Background: In Nigeria, with a rising incidence of diabetes mellitus (DM), there are ... Objective: To assess the prevalence of specific psychiatric disorders and ..... Suleiman T.G., Ohaeri J.U., Lawal R.A., Haruna A.T. and Orija.

  4. Psychiatric and Societal Impacts of Terrorism

    National Research Council Canada - National Science Library

    Grieger, Thomas A

    2006-01-01

    ... is one consequence of terrorism. Even emotional and behavioral changes that do not reach the level of a diagnosable disorder may contribute significantly to the overall health burden resulting from terrorist attacks. Psychiatric disorders will occur in a relatively small percentage of the exposed population. The course of illness for those in whom suc...

  5. Substance use and violence among psychiatric inpatients.

    Science.gov (United States)

    Stewart, D; Bowers, L

    2015-03-01

    Nursing staff on psychiatric wards often attribute patient violence and aggression to substance use. This study examined incidents of alcohol and illicit drug use among acute psychiatric inpatients and associations between substance use and violence or other forms of aggression. A sample of 522 adult psychiatric inpatients was recruited from 84 acute psychiatric wards in England. Data were collected from nursing and medical records for the first 2 weeks of admission. Only a small proportion of the sample was reported to have used or been under the influence of alcohol (5%) or drugs (3%). There was no physical violence during a shift when a patient had used alcohol or drugs. Substance using patients were also no more likely than others to behave violently at any point during the study period. However, incidents of substance use were sometimes followed by verbal aggression. Beliefs that substance using patients are likely to be violent were not supported by this study, and could impact negatively on therapeutic relationships between nurses and this patient group. Future studies are needed to examine how staff intervene and interact with intoxicated patients. © 2014 John Wiley & Sons Ltd.

  6. Psychiatric epidemiology and disaster exposure in Australia.

    NARCIS (Netherlands)

    Reifels, L.; Mills, K.; Dückers, M.L.A.; O'Donnell, M.L.

    2017-01-01

    Aims. To examine the lifetime prevalence and risk of psychiatric disorders associated with natural and man-made disaster exposure in Australia. Methods. We utilised data from a nationally representative population survey (N = 8841) which were analysed through univariate and multivariate logistic

  7. [SEXUALITY IN PSYCHIATRIC HOSPITALIZATION: REALITY VERSUS POLICY].

    Science.gov (United States)

    Shalev, Anat; Weil, Gabriel; Rubinstein, Ludmila

    2016-12-01

    Psychiatric hospitalization might be a necessity for certain groups of patients with mental illness, involving acute symptoms and substantial disability which do not allow independent living in the community. In such situations, it is crucial to enable inpatients to enjoy the best possible quality of life, including the right for sexual autonomy as a basic human right. Satisfying sexual life is part of meaningful life and plays an important role in personal and social recovery. On the other hand, sexual relations in psychiatric wards raise many dilemmas, including the need to protect inpatients from sexual abuse and victimization, particularly when mental illness involves judgment deficits and decreased ability to express autonomous will. In spite of its' importance, this subject receives little attention in policy guidelines and clinical practice and is largely ignored. The article reviews literature examining various aspects of sexual behavior in psychiatric facilities, revealing ethical dilemmas, risks and the role of policy guidelines to address this subject. We present viewpoints of practitioners, consumers and family members concerning sexual behavior in psychiatric hospitalization. We conclude with implications that emerge from accumulated knowledge with regard to policy making and proposed frameworks for change.

  8. [Dementia - a relevant subject in psychiatric research?].

    Science.gov (United States)

    Wancata, Johannes

    2011-10-01

    Demographic change calls for increased efforts in dementia research. A systematic analysis of a German-speaking psychiatric journal was performed. 18.2 % of all papers published in were related to dementia and cognition. Dementia is a main issue; only papers regarding schizophrenia were more common. Health service research is largely lacking. © Georg Thieme Verlag KG Stuttgart · New York.

  9. Psychiatric nurses' experiences with inpatient aggression

    NARCIS (Netherlands)

    Nijman, H.L.I.; Bowers, L.; Oud, N.E.; Jansen, G.J.

    2005-01-01

    Using a survey instrument, the experiences of psychiatric nurses with inpatienaggression were investigated in East London, U.K. On this Perceptions of Prevalence Of Aggression Scale (POPAS), annual experiences with 15 types of disruptive and aggressive behavior were rated anonymously. Staff members

  10. Prevalence of Psychiatric Disorders in Preschoolers

    Science.gov (United States)

    Wichstrom, Lars; Berg-Nielsen, Turid Suzanne; Angold, Adrian; Egger, Helen Link; Solheim, Elisabet; Sveen, Trude Hamre

    2012-01-01

    Background: Many disorders in childhood and adolescence were already present in the preschool years. However, there is little empirical research on the prevalence of psychiatric disorders in young children. A true community study using structured diagnostic tools has yet to be published. Methods: All children born in 2003 or 2004 in the city of…

  11. 76 FR 40229 - Psychiatric Evaluation and Treatment

    Science.gov (United States)

    2011-07-08

    ... transfer to a mental hospital are threatened with immediate deprivation of liberty interests they are... use of the phrase `qualified health services staff' in Sec. 549.44 of the proposed regulation. The APA.... Bureau policy on pharmacy services is predicated on the requirement that the use of psychiatric...

  12. Tobacco Smoking in Adolescent Psychiatric Outpatients

    Science.gov (United States)

    Ditchburn, K. Marie; Sellman, J. Douglas

    2013-01-01

    Three main aims of this study were to ascertain the prevalence rate of smoking among adolescent psychiatric outpatients; estimate smokers' degree of nicotine dependence; and investigate the relationship between smoking and common mental health disorders. Face-to-face interviews were conducted on 93 patients ages 13-18 presenting to an adolescent…

  13. Lipids in psychiatric disorders and preventive medicine.

    Science.gov (United States)

    Schneider, Miriam; Levant, Beth; Reichel, Martin; Gulbins, Erich; Kornhuber, Johannes; Müller, Christian P

    2017-05-01

    Psychiatric disorders like mood disorders, schizophrenia, or drug addiction affect a sizeable proportion of the human population and severely compromise quality of life. Therefore, measures to prevent the manifestation, and treatments to ameliorate the symptoms, of these disorders are in high demand. Brain lipids determine the localization and function of proteins in the cell membrane of neurons. Lipids may also act as neurotransmitters or other signalling molecules. The lipid composition of the brain can be influenced by nutrition, environmental factors, and by behavioural activity. Thus, lipids represent a target for preventive medicine of psychiatric disorders. Here we review how brain lipids contribute to normal behaviour and to major psychiatric disorders with the focus on phospholipids/fatty acids, sphingolipids, and endocannabinoids. Accumulating evidence suggests a crucial role for membrane forming and signalling lipids in the brain in the etiopathologies of depression, bipolar disorders, schizophrenia, and drug addiction. Lipids also represent potential preventive interventions for these psychiatric disorders by either targeted dietary supplementation or pharmacological manipulation of lipid regulating enzymes. Copyright © 2016 The Authors. Published by Elsevier Ltd.. All rights reserved.

  14. Sociodemographic Characteristic, Oath Taking and Psychiatric ...

    African Journals Online (AJOL)

    Background: It is common knowledge that Nigeria is a source and route of transit for victims of human trafficking. Yet studies on psychiatric morbidity among the victims in the country are rare. In addition, previous studies were among post destination victims. The present study is aimed at determining the prevalence of ...

  15. Psychiatric consultations and the management of associated ...

    African Journals Online (AJOL)

    Consultation-liaison psychiatry (CLP) was conceptualised as far back as the late 1800s when. Benjamin Rush promoted interest in the integration of medicine: 'the psychosomatic unity of the body and soul'.[1] Others have described CLP as the practical application of all psychiatric knowledge, ideas and techniques to.

  16. Psychiatric classification, stigma, and mental health

    African Journals Online (AJOL)

    Afr J Psychiatry 2013;16:227-229. African Journal of Psychiatry • July 2013. 227. Work on DSM-5 and ICD-11, and the simultaneous development of alternative approaches to psychiatric classification such as the Research Domain Criteria of the. National Institute of Mental Health1, has led to renewed interest of colleagues ...

  17. Psychiatric Genomics: An Update and an Agenda.

    Science.gov (United States)

    Sullivan, Patrick F; Agrawal, Arpana; Bulik, Cynthia M; Andreassen, Ole A; Børglum, Anders D; Breen, Gerome; Cichon, Sven; Edenberg, Howard J; Faraone, Stephen V; Gelernter, Joel; Mathews, Carol A; Nievergelt, Caroline M; Smoller, Jordan W; O'Donovan, Michael C

    2018-01-01

    The Psychiatric Genomics Consortium (PGC) is the largest consortium in the history of psychiatry. This global effort is dedicated to rapid progress and open science, and in the past decade it has delivered an increasing flow of new knowledge about the fundamental basis of common psychiatric disorders. The PGC has recently commenced a program of research designed to deliver "actionable" findings-genomic results that 1) reveal fundamental biology, 2) inform clinical practice, and 3) deliver new therapeutic targets. The central idea of the PGC is to convert the family history risk factor into biologically, clinically, and therapeutically meaningful insights. The emerging findings suggest that we are entering a phase of accelerated genetic discovery for multiple psychiatric disorders. These findings are likely to elucidate the genetic portions of these truly complex traits, and this knowledge can then be mined for its relevance for improved therapeutics and its impact on psychiatric practice within a precision medicine framework. [AJP at 175: Remembering Our Past As We Envision Our Future November 1946: The Genetic Theory of Schizophrenia Franz Kallmann's influential twin study of schizophrenia in 691 twin pairs was the largest in the field for nearly four decades. (Am J Psychiatry 1946; 103:309-322 )].

  18. What is the significance of onconeural antibodies for psychiatric symptomatology?

    DEFF Research Database (Denmark)

    Sæther, Sverre Georg; Schou, Morten; Kondziella, Daniel

    2017-01-01

    BACKGROUND: Patients with intracellular onconeural antibodies may present with neuro-psychiatric syndromes. We aimed to evaluate the evidence for an association between well-characterized onconeural antibodies and psychiatric symptoms in patients with and without paraneoplastic central nervous sy...

  19. Calculating Risk: Radiation and Chernobyl.

    Science.gov (United States)

    Gale, Robert Peter

    1987-01-01

    Considers who is at risk in a disaster such as Chernobyl. Assesses the difficulty in translating information regarding radiation to the public and in determining the acceptability of technological risks. (NKA)

  20. Biomedical Sensors of Ionizing Radiation

    OpenAIRE

    Pani, S; Speller, R; Royle, G; Olivo, A

    2010-01-01

    Sensors Technology Series Editor-in-Chief's Preface vii Preface ix 1 Biomedical Sensors: Temperature Sensor ... G. Kim Prisk 4 Biomedical Sensors of Ionizing Radiation 129 Robert Speller, Alessandro Olivo, Silvia Pani, and Gary Royle 5 ...

  1. Screening for psychiatric morbidity in an accident and emergency department.

    OpenAIRE

    Bell, G; Hindley, N; Rajiyah, G; Rosser, R

    1990-01-01

    One hundred and twenty A&E Department daytime attenders were screened for psychiatric disorder in a two stage procedure. Thirty-three patients were identified as General Health Questionnaire (GHQ) 'cases' of whom 28 agreed to a psychiatric interview using the Clinical Interview Schedule. Twenty-eight GHQ 'non-cases' were also interviewed. A psychiatric diagnosis was made in 24 patients, 21 of whom were GHQ cases. Patients were more likely to suffer from psychiatric morbidity if the presenting...

  2. Exploring the perceptions of psychiatric patients regarding marijuana use

    OpenAIRE

    Belinda Scrooby; Emmerentia du Plessis; Leepile A. Sehularo

    2012-01-01

    There is limited understanding on marijuana use by psychiatric patients, specifically with regard as to why they continue to smoke marijuana despite the negative consequences, such as readmittance to psychiatric hospitals following marijuana-induced psychosis. It is, therefore, important to understand why psychiatric patients continue to use marijuana, despite experiencing its negative effects. The purpose of this study was to explore and describe the perceptions of psychiatric patients with ...

  3. Use of animal-assisted therapy with psychiatric patients.

    Science.gov (United States)

    Rossetti, Jeanette; King, Camille

    2010-11-01

    The use of animal-assisted therapy (AAT) as an adjunct treatment approach in psychiatric settings has received much attention in the literature. This article explores the use of AAT with psychiatric patients. The authors performed a literature review and found that AAT can have a significant effect on the improvement of psychiatric patients' socialization and provides a variety of psychological benefits. Nurses can benefit from learning about the potential benefits of AAT for psychiatric patients.

  4. Psychiatric hospitalisation and suicide among the very old in Denmark

    DEFF Research Database (Denmark)

    Erlangsen, Annette; Mortensen, Preben Bo; Vach, Werner

    2005-01-01

    BACKGROUND: Very old people have higher suicide rates than the younger elderly population. Psychiatric disorders are known to have a strong association with suicide among elderly people. AIMS: To analyse the analyse the suicide risk associated with psychiatric hospitalisation among the very old......: The association between suicide and psychiatric hospitalisation is much weaker for the very old than for the old. Psychiatric disorders among very old people may be interacting with other disorders, may be underdiagnosed or treated in other healthcare settings....

  5. Psychiatric comorbidity in gender dysphoric adolescents.

    Science.gov (United States)

    de Vries, Annelou L C; Doreleijers, Theo A H; Steensma, Thomas D; Cohen-Kettenis, Peggy T

    2011-11-01

    This study examined psychiatric comorbidity in adolescents with a gender identity disorder (GID). We focused on its relation to gender, type of GID diagnosis and eligibility for medical interventions (puberty suppression and cross-sex hormones). To ascertain DSM-IV diagnoses, the Diagnostic Interview Schedule for Children (DISC) was administered to parents of 105 gender dysphoric adolescents. 67.6% had no concurrent psychiatric disorder. Anxiety disorders occurred in 21%, mood disorders in 12.4% and disruptive disorders in 11.4% of the adolescents. Compared with natal females (n = 52), natal males (n = 53) suffered more often from two or more comorbid diagnoses (22.6% vs. 7.7%, p = .03), mood disorders (20.8% vs. 3.8%, p = .008) and social anxiety disorder (15.1% vs. 3.8%, p = .049). Adolescents with GID considered to be 'delayed eligible' for medical treatment were older [15.6 years (SD = 1.6) vs. 14.1 years (SD = 2.2), p = .001], their intelligence was lower [91.6 (SD = 12.4) vs. 99.1 (SD = 12.8), p = .011] and a lower percentage was living with both parents (23% vs. 64%, p 1.0 for all psychiatric diagnoses except specific phobia. Despite the suffering resulting from the incongruence between experienced and assigned gender at the start of puberty, the majority of gender dysphoric adolescents do not have co-occurring psychiatric problems. Delayed eligibility for medical interventions is associated with psychiatric comorbidity although other factors are of importance as well. © 2011 The Authors. Journal of Child Psychology and Psychiatry © 2011 Association for Child and Adolescent Mental Health.

  6. Self-Esteem Deficits Among Psychiatric Patients

    Directory of Open Access Journals (Sweden)

    Muhammad Rizwan

    2015-04-01

    Full Text Available The objective of the present study was to investigate the difference in the level of self-esteem among patients with psychiatric disorders and normal controls. After a detailed literature review, it was hypothesized that there would be a significant difference in the level of self-esteem among patients with psychiatric disorders and normal controls. The sample of the present study consisted of 260 participants, who were further divided into two groups: clinical group (n = 140 and normal controls (n = 120. The age range of the participants in both the samples were 18 to 25 years (with the mean age of 22.14 years for psychiatric patients and 21.18 years for normal controls, and they belonged to middle socioeconomic status. The clinical group consisted of diagnosed psychiatric patients according to Diagnostic and Statistical Manual of Mental Disorders (4th ed., text rev.; DSM-IV-TR criteria and further divided into four subgroups, including patients of (a schizophrenia (n = 40, (b major depressive disorder (n = 40, (c obsessive-compulsive disorder (n = 40, and (d opioid dependence disorder (n = 20. The semi-structured interview form of Institute of Clinical Psychology, University of Karachi, and Rosenberg Self-Esteem Scale were used. Descriptive Statistics and one-way ANOVA were applied to analyze and interpret the data in statistical terminology. Results indicate significant differences among patients with psychiatric disorders and normal controls on the variable of self-esteem (F = 30.513, df = 4, 255, p< .05. The finding has implications for clinical interventions and also suggests avenues for future research.

  7. Prevalence of smoking in psychiatric patients.

    Science.gov (United States)

    Poirier, Marie-France; Canceil, Olivier; Baylé, Franck; Millet, Bruno; Bourdel, Marie-Chantal; Moatti, Cécile; Olié, Jean-Pierre; Attar-Lévy, Dominique

    2002-04-01

    Compelling evidence that tobacco-smoking is a form of drug addiction exists. The aim of this study is to determine the following: (1) prevalence of tobacco-smoking and of nicotine dependence in French psychiatric patients; (2) rates and patterns of tobacco smoking and of nicotine dependence according to diagnosis; (3) relationship between current smoking status and antipsychotic medications; and (4) relationship between cigarette smoking and neurological side effects induced by neuroleptics. A population of 711 psychiatric in- and outpatients was assessed using: (1) a detailed smoking self-questionnaire for smoking history and nicotine dependence; and (2) a questionnaire for staff covering treatments and DSMIII-R diagnoses. Data were analyzed using chi2 analysis of variance (ANOVA) tests (one factor) for quantitative comparisons between groups of patients, and analysis of covariance (ANCOVA) test with age covariate was performed for age-dependent variables. Prevalence of smoking in the population of psychiatric patients was significantly higher than in the French general population. Diagnoses among current smokers were mainly substance-related disorder and schizophrenia. The authors established correlations between prevalence of smoking and age, sex, marital and socioeconomic status, alcohol use, coffee consumption and other psychoactive substance use or abuse. The authors did not find relationship between smoking prevalence and institutionalization. Neuroleptic neurological side effects were significantly fewer among smokers compared to nonsmokers. However, the rate of smokers was significantly higher in psychiatric patients receiving neuroleptic drugs. Nicotine abuse in psychiatric patients, and especially in schizophrenic patients, could support the hypothesis that smoking is consistent with self-medication.

  8. Psychiatric disorders and urbanization in Germany.

    Science.gov (United States)

    Dekker, Jack; Peen, Jaap; Koelen, Jurrijn; Smit, Filip; Schoevers, Robert

    2008-01-17

    Epidemiological studies over the last decade have supplied growing evidence of an association between urbanization and the prevalence of psychiatric disorders. Our aim was to examine the link between levels of urbanization and 12-month prevalence rates of psychiatric disorders in a nationwide German population study, controlling for other known risk factors such as gender, social class, marital status and the interaction variables of these factors with urbanization. The Munich Composite International Diagnostic Interview (M-CIDI) was used to assess the prevalence of mental disorders (DSM-IV) in a representative sample of the German population (N = 4181, age: 18-65). The sample contains five levels of urbanization based on residence location. The epidemiological study was commissioned by the German Ministry of Research, Education and Science (BMBF) and approved by the relevant Institutional Review Board and ethics committee. Written informed consent was obtained for both surveys (core survey and Mental Health Supplement). Subjects did not get any financial compensation for their study participation. Higher levels of urbanization were linked to higher 12-month prevalence rates for almost all major psychiatric disorders (with the exception of substance abuse and psychotic disorders). The weighted prevalence percentages were highest in the most urbanized category. Alongside urbanization, female gender, lower social class and being unmarried were generally found to be associated with higher levels of psychopathology. The impact of urbanization on mental health was about equal (for almost all major psychiatric disorders) in young people and elderly people, men and women, and in married and single people. Only people from a low social class in the most urbanized settings had more somatoform disorders, and unmarried people in the most urbanized settings had more anxiety disorders. Psychiatric disorders are more prevalent among the inhabitants of more urbanized areas

  9. Psychiatric disorders and urbanization in Germany

    Directory of Open Access Journals (Sweden)

    Koelen Jurrijn

    2008-01-01

    Full Text Available Abstract Background Epidemiological studies over the last decade have supplied growing evidence of an association between urbanization and the prevalence of psychiatric disorders. Our aim was to examine the link between levels of urbanization and 12-month prevalence rates of psychiatric disorders in a nationwide German population study, controlling for other known risk factors such as gender, social class, marital status and the interaction variables of these factors with urbanization. Methods The Munich Composite International Diagnostic Interview (M-CIDI was used to assess the prevalence of mental disorders (DSM-IV in a representative sample of the German population (N = 4181, age: 18–65. The sample contains five levels of urbanization based on residence location. The epidemiological study was commissioned by the German Ministry of Research, Education and Science (BMBF and approved by the relevant Institutional Review Board and ethics committee. Written informed consent was obtained for both surveys (core survey and Mental Health Supplement. Subjects did not get any financial compensation for their study participation. Results Higher levels of urbanization were linked to higher 12-month prevalence rates for almost all major psychiatric disorders (with the exception of substance abuse and psychotic disorders. The weighted prevalence percentages were highest in the most urbanized category. Alongside urbanization, female gender, lower social class and being unmarried were generally found to be associated with higher levels of psychopathology. The impact of urbanization on mental health was about equal (for almost all major psychiatric disorders in young people and elderly people, men and women, and in married and single people. Only people from a low social class in the most urbanized settings had more somatoform disorders, and unmarried people in the most urbanized settings had more anxiety disorders. Conclusion Psychiatric disorders are more

  10. Workshops on radiation imaging detectors

    Energy Technology Data Exchange (ETDEWEB)

    Sochinskii, N.V.; Sun, G.C.; Kostamo, P.; Silenas, A.; Saynatjoki, A.; Grant, J.; Owens, A.; Kozorezov, A.G.; Noschis, E.; Van Eijk, C.; Nagarkar, V.; Sekiya, H.; Pribat, D.; Campbell, M.; Lundgren, J.; Arques, M.; Gabrielli, A.; Padmore, H.; Maiorino, M.; Volpert, M.; Lebrun, F.; Van der Putten, S.; Pickford, A.; Barnsley, R.; Anton, M.E.G.; Mitschke, M.; Gros d' Aillon, E.; Frojdh, C.; Norlin, B.; Marchal, J.; Quattrocchi, M.; Stohr, U.; Bethke, K.; Bronnimann, C.H.; Pouvesle, J.M.; Hoheisel, M.; Clemens, J.C.; Gallin-Martel, M.L.; Bergamaschi, A.; Redondo-Fernandez, I.; Gal, O.; Kwiatowski, K.; Montesi, M.C.; Smith, K

    2005-07-01

    This document gathers the transparencies that were presented at the international workshop on radiation imaging detectors. 9 sessions were organized: 1) materials for detectors and detector structure, 2) front end electronics, 3) interconnected technologies, 4) space, fusion applications, 5) the physics of detection, 6) industrial applications, 7) synchrotron radiation, 8) X-ray sources, and 9) medical and other applications.

  11. Clinically useful predictors for premature mortality among psychiatric patients visiting a psychiatric emergency room

    DEFF Research Database (Denmark)

    Aagaard, Jørgen; Buus, Niels; Wernlund, Andreas Glahn

    2016-01-01

    OBJECTIVE: The aim of this study was to examine changes in the distribution of causes of death and mortality rates among psychiatric patients visiting a psychiatric emergency room (PER), to determine clinically useful predictors for avoiding premature mortality among these patients and to discuss...... by substance use disorder is preventable, and PERs are ideal points of early intervention. Systematic screening for substance use disorder at the PER and/or crisis intervention teams may be effective intervention strategies....

  12. Puerperal Psychiatric Disorders: A 6 - Year Retrospective Review at ...

    African Journals Online (AJOL)

    Results: About 1.7% of new cases seen during the period had a post partum psychiatric disorder. Depression (50%) was the commonest type of post-partum psychiatric illness, followed by mania (21.3%), bipolar affective disorder (12.5%) and schizophrenia (10.3%). Most had onset of psychiatric symptoms less than 4 ...

  13. Psychiatric Nursing Care for Adult Survivors of Child

    NARCIS (Netherlands)

    Thóra van der Hafsteinsdóttir; Cokky van der Venne; Yvonne van der Zalm; Nienke Kool; Willem Nugteren; prof Berno van Meijel

    2014-01-01

    PURPOSE: To determine what is known from the literature about nursing care of psychiatric patients with a history of child maltreatment. CONCLUSIONS: Psychiatric nurses underline the importance of a routine inquiry of child abuse on admission of patients to psychiatric care, but are reluctant to

  14. College Student Utilization of a Comprehensive Psychiatric Emergency Program

    Science.gov (United States)

    Mitchell, Sharon L.; Kader, Mahrin; Haggerty, Melinda Z.; Bakhai, Yogesh D.; Warren, Calvert G.

    2013-01-01

    The authors sought to identify college students at risk for experiencing a mental health crisis that warranted a psychiatric evaluation at a hospital and/or a psychiatric hospitalization. A retrospective chart review of college students evaluated at a comprehensive psychiatric emergency program during a 1-year period was conducted. Demographic…

  15. Language, subjectivity and participation in psychiatric institutions in Denmark

    DEFF Research Database (Denmark)

    Ringer, Agnes

    psychiatric facilities in Denmark: an outpatient psychiatric long-term treatment clinic and a closed psychiatric ward. The applied methods are participant observation, interviews with patients and professionals and analysis of documents. Employing discursive and narrative approaches, the aim of the project...

  16. The Effect of Clinical Psychiatric Training on Medical Students' Belief ...

    African Journals Online (AJOL)

    Background to the study: Medical student's attitude towards people with mental illness (PWMI) is very important for the future care of psychiatric patients. It has been postulated that psychiatric education could lead to a reduction in negative attitude towards PWMI. Objective: To assess the effect of clinical psychiatric training ...

  17. Psychiatric, Psychological and “Witchcraft” Defences to Murder in ...

    African Journals Online (AJOL)

    Background: Expert psychiatric testimony may be relevant in certain instances of homicide especially murder. However, the exposure of most psychiatric trainees may be inadequate in relation to the range of psychological defences available to an offender accused of homicide. Aim: To describe the psychiatric and ...

  18. RADIATION ACOUSTICS

    OpenAIRE

    Lyamshev, L.

    1990-01-01

    Radiation acoustics is a new branch of acoustics. Its' fundamentals are lying in the research of acoustical effects due to the interaction of a radiation with matter. The sound excitation in liquids and solids by modulated or pulsed particle beams (electron, proton, ion beams, γ-radiation and single high-energy elementary particles) and some practical applications are discussed.

  19. Chapter 1: Direct Normal Radiation

    Energy Technology Data Exchange (ETDEWEB)

    Myer, Daryl R.

    2016-04-15

    This chapter addresses the quantitative and qualitative aspects of the solar resource, the direct solar radiation. It discusses the total or integrated broadband direct beam extraterrestrial radiation (ETR). This total integrated irradiance is comprised of photons of electromagnetic radiation. The chapter also discusses the impact of the atmosphere and its effect upon the direct normal irradiance (DNI) beam radiation. The gases and particulates present in the atmosphere traversed by the direct beam reflect, absorb, and scatter differing spectral regions and proportions of the direct beam, and act as a variable filter. Knowledge of the available broadband DNI beam radiation resource data is essential in designing a concentrating photovoltaic (CPV) system. Spectral variations in the DNI beam radiation affect the performance of a CPV system depending on the solar cell technology used. The chapter describes propagation and scattering processes of circumsolar radiation (CSR), which includes the Mie scattering from large particles.

  20. Acute Cerebrovascular Radiation Syndrome: Radiation Neurotoxicity , mechanisms of CNS radiation injury, advanced countermeasures for Radiation Protection of Central Nervous System.

    Science.gov (United States)

    Popov, Dmitri; Jones, Jeffrey; Maliev, Slava

    Key words: Cerebrovascular Acute Radiation Syndrome (Cv ARS), Radiation Neurotoxins (RNT), Neurotransmitters, Radiation Countermeasures, Antiradiation Vaccine (ArV), Antiradiation Blocking Antibodies, Antiradiation Antidote. Psychoneuroimmunology, Neurotoxicity. ABSTRACT: To review the role of Radiation Neurotoxins in triggering, developing of radiation induced central nervous system injury. Radiation Neurotoxins - rapidly acting blood toxic lethal agent, which activated after irradiation and concentrated, circulated in interstitial fluid, lymph, blood with interactions with cell membranes, receptors and cell compartments. Radiation Neurotoxins - biological molecules with high enzymatic activity and/or specific lipids and activated or modified after irradiation. The Radiation Neurotoxins induce increased permeability of blood vessels, disruption of the blood-brain barrier, blood-cerebrospinal fluid (CSF) barrier and developing severe disorder of blood macro- and micro-circulation. Principles of Radiation Psychoneuro-immunology and Psychoneuro-allergology were applied for determination of pathological processes developed after irradiation or selective administration of Radiation Neurotoxins to radiation naïve mammals. Effects of radiation and exposure to radiation can develop severe irreversible abnormalities of Central Nervous System, brain structures and functions. Antiradiation Vaccine - most effective, advanced methods of protection, prevention, mitigation and treatment and was used for of Acute Radiation Syndromes and elaboration of new technology for immune-prophylaxis and immune-protection against ϒ, Heavy Ion, Neutron irradiation. Results of experiments suggested that blocking, antitoxic, antiradiation antibodies can significantly reduce toxicity of Radiation Toxins. New advanced technology include active immune-prophylaxis with Antiradiation Vaccine and Antiradiation therapy that included specific blocking antibodies to Radiation Neurotoxins

  1. Beneficial uses of radiation

    Energy Technology Data Exchange (ETDEWEB)

    Fox, M.R.

    1991-10-01

    An overall decline in technical literacy within the American public has come at a time when technological advances are accelerating in the United States and around the world. This had led to a large communication gulf between the general public and the technologists. Nowhere is this more evident then with the topic of radiation. Regrettably, too few people know about sources of radiation, the pervasiveness, amounts, and variabilities, and do not have a true understanding of the environment in which we live. Nor do many people know that radiation has been used in beneficial ways for decades around the world. While the general public does not know of the scientific applications to which radiation has been deployed, it nevertheless had benefited tremendously from these efforts. Thanks to the well know properties of radiation, scientific ingenuity has found many uses of radiation in chemical and agricultural research, biomedical research, in the diagnoses and treatment of hundreds of types of diseases, in industrial applications, food irradiation, and many others. This paper provides a sample of the types of uses to which radiation has been used to help advance the betterment of humankind.

  2. The effect of psychiatric rehabilitation on the activity and participation level of clients with long-term psychiatric disabilities

    NARCIS (Netherlands)

    Wel, T.F. van; Felling, A.J.A.; Persoon, J.M.G.

    2003-01-01

    During the last decades of the 20th century, many psychiatric hospitals changed the living environments of their clients with long-term psychiatric disabilities. We investigated the effect of this environmental psychiatric rehabilitation and normalization process on the activity and participation

  3. Alcohol Use and Abuse in a University Psychiatric Health Service: Prevalence and Patterns of Comorbidity with Other Psychiatric Problems.

    Science.gov (United States)

    Ross, Helen E.; Tisdall, Gordon W.

    1994-01-01

    Examined use and abuse of alcohol and other drugs in university psychiatric health service and patterns of comorbidity with other psychiatric problems. Psychiatric service students (n=110) tended to drink less than did undergraduate comparison group and to report similar frequencies of adverse consequences. Alcohol disorders were significantly…

  4. The Effect of Psychiatric Rehabilitation on the Activity and Participation Level of Clients with Long-Term Psychiatric Disabilities

    NARCIS (Netherlands)

    Wel, Tom van; Felling, Albert; Persoon, Jean

    2003-01-01

    During the last decades of the 20th century, many psychiatric hospitals changed the living environments of their clients with long-term psychiatric disabilities. We investigated the effect of this environmental psychiatric rehabilitation and normalization process on the activity and participation

  5. Radiation hydrodynamics

    Energy Technology Data Exchange (ETDEWEB)

    Pomraning, G.C.

    1982-12-31

    This course was intended to provide the participant with an introduction to the theory of radiative transfer, and an understanding of the coupling of radiative processes to the equations describing compressible flow. At moderate temperatures (thousands of degrees), the role of the radiation is primarily one of transporting energy by radiative processes. At higher temperatures (millions of degrees), the energy and momentum densities of the radiation field may become comparable to or even dominate the corresponding fluid quantities. In this case, the radiation field significantly affects the dynamics of the fluid, and it is the description of this regime which is generally the charter of radiation hydrodynamics. The course provided a discussion of the relevant physics and a derivation of the corresponding equations, as well as an examination of several simplified models. Practical applications include astrophysics and nuclear weapons effects phenomena.

  6. Psychiatric disorders in long-term sickness absence

    DEFF Research Database (Denmark)

    Søgaard, Hans Jørgen; Bech, Per

    2009-01-01

    examined persons in Phase 2 showed by binomial tests the following frequencies: any psychiatric disorder 57%, any depression 42%, and any anxiety 18%. In Phase 1, representative for everyone on LSA, the frequencies were 48% for any psychiatric disorder, 35% for any depression, 15% for any anxiety, and 7......% for any somatoform disorder. Multivariable analyses showed that female sex and unemployment were predictors of a psychiatric disorder, whereas living with children below 18 years and being a skilled worker carried a reduced risk of a psychiatric disorder. CONCLUSIONS: The high frequency of psychiatric...

  7. Development of advanced silicon radiation detectors for harsh radiation environment

    CERN Document Server

    Groenlund, Tanja

    2012-01-01

    This thesis describes the development of advanced silicon radiation detectors and their characterization by simulations, used in the work for searching elementary particles in the European Organization for Nuclear Research, CERN. Silicon particle detectors will face extremely harsh radiation in the proposed upgrade of the Large Hadron Collider, the future high-energy physics experiment Super-LHC. The increase in the maximal fluence and the beam luminosity up to 1016 neq / cm2 and 1035 cm-2s-1 will require detectors with a dramatic improvement in radiation hardness, when such a fluence will be far beyond the operational limits of the present silicon detectors. The main goals of detector development concentrate on minimizing the radiation degradation. This study contributes mainly to the device engineering technology for developing more radiation hard particle detectors with better characteristics. Also the defect engineering technology is discussed. In the nearest region of the beam in Super-LHC, the only dete...

  8. The Quality of Prescribing for Psychiatric Patients

    DEFF Research Database (Denmark)

    Soerensen, A L; Nielsen, L P; Poulsen, B K

    2014-01-01

    The Quality of Prescribing for Psychiatric PatientsSoerensen AL1,2, Nielsen LP3,4, Poulsen BK3, Lisby M3,5, Mainz J6,7 1Danish Center for Healthcare Improvements, Faculty of Social Sciences and Faculty of Health Sciences, Aalborg University, Denmark; 2University College of Northern Denmark; 3...... of PIP was assessed using four categories. Logistic regression analysis was used to identify possible predictive factors of PIP. RESULTS: The proportion of patients with one or more PIPs was 123/219(56%). “Interaction between drugs” was the most common category for potentially serious and potentially...... need to improve the quality in prescribing for psychiatric patients....

  9. The Quality of Prescribing for Psychiatric Patients

    DEFF Research Database (Denmark)

    Sørensen, Ann Lykkegaard; Nielsen, Lars Peter; Poulsen, Birgitte Klindt

    2014-01-01

    The Quality of Prescribing for Psychiatric Patients Soerensen AL1,2, Nielsen LP3,4, Poulsen BK3, Lisby M3,5, Mainz J6,7 1Danish Center for Healthcare Improvements, Faculty of Social Sciences and Faculty of Health Sciences, Aalborg University, Denmark; 2University College of Northern Denmark; 3...... of PIP was assessed using four categories. Logistic regression analysis was used to identify possible predictive factors of PIP. RESULTS: The proportion of patients with one or more PIPs was 123/219(56%). “Interaction between drugs” was the most common category for potentially serious and potentially...... need to improve the quality in prescribing for psychiatric patients....

  10. The serotonin transporter in psychiatric disorders

    DEFF Research Database (Denmark)

    Spies, Marie; Knudsen, Karen Birgitte Moos; Lanzenberger, Rupert

    2015-01-01

    of various psychiatric disorders and their treatment. We review studies that use PET to measure cerebral serotonin transporter activity in psychiatric disorders, focusing on major depressive disorder and antidepressant treatment. We also discuss opportunities and limitations in the application...... of this neuroimaging method in clinical practice. Although results from individual studies diverge, meta-analysis indicates a trend towards reduced serotonin transporter availability in patients with major depressive disorder. Inconsistencies in results might suggest symptom heterogeneity in major depressive disorder...... and might therefore be relevant for stratification of patients into clinical subsets. PET has enabled the elucidation of mechanisms of response to selective serotonin reuptake inhibitors (SSRIs) and hence provides a basis for rational pharmacological treatment of major depressive disorder. Such imaging...

  11. Triage in psychiatric emergency services in Copenhagen

    DEFF Research Database (Denmark)

    Sæbye, Ditte; Høegh, Erica Bernt; Knop, Joachim

    2017-01-01

    Inspired by the Australasian triage system, a regional psychiatric triage system was introduced in the psychiatric emergency units (PEUs) in Copenhagen in 2011. Our aim of the study is to determine the characteristics of the patient according to the defined triage criteria and check...... if this is in accordance with recommendations. A random 10% data sample was obtained throughout 2012 in three PEUs of Copenhagen. Triage category, demographic, social and clinically relevant variables were collected. A total of 929 contacts were registered. We found significant associations between triage category...... and several clinical parameters. Time of visit was correlated to diagnoses. The results indicate that use of the new triage system in emergency psychiatry has facilitated urgency categorization, reduced waiting time, and optimized clinical decisions. These goals are important clinical implications...

  12. Cotard syndrome in neurological and psychiatric patients.

    Science.gov (United States)

    Ramirez-Bermudez, Jesus; Aguilar-Venegas, Luis C; Crail-Melendez, Daniel; Espinola-Nadurille, Mariana; Nente, Francisco; Mendez, Mario F

    2010-01-01

    The authors describe the frequency and characteristics of Cotard syndrome among neurological and psychiatric inpatients at a tertiary referral center. All inpatients from the National Institute of Neurology of Mexico (March 2007-May 2009) requiring neuropsychiatric consultation were reviewed. Among 1,321 inpatient consultations, 63.7% had neurological disease and one (0.11%) had viral encephalitis and Cotard syndrome. Of inpatients, 36.2% had pure psychiatric disorders and three (0.62%) had Cotard syndrome, associated with psychotic depression, depersonalization, and penile retraction (koro syndrome). This review discusses potential mechanisms for Cotard syndrome, including the role of a perceptual-emotional dissociation in self-misattribution in the deliré des negations.

  13. Phobias, other psychiatric comorbidities and chronic migraine.

    Science.gov (United States)

    Corchs, Felipe; Mercante, Juliane P P; Guendler, Vera Z; Vieira, Domingos S; Masruha, Marcelo R; Moreira, Frederico R; Bernik, Marcio; Zukerman, Eliova; Peres, Mario F P

    2006-12-01

    Comorbidity of chronic migraine (CM) with psychiatric disorders, mostly anxiety and mood disorders, is a well-recognized phenomenon. Phobias are one of the most common anxiety disorders in the general population. Phobias are more common in migraineurs than non-migraineurs. The clinical profile of phobias in CM has never been studied. We investigated the psychiatric profile in 56 patients with CM using the SCID I/P interview. Lifetime criteria for at least one mental disorder was found in 87.5% of the sample; 75% met criteria for at least one lifetime anxiety disorder and 60.7% of our sample fulfilled DSM-IV criteria for lifetime phobic avoidant disorders. Mood and anxiety scores were higher in phobic patients than in non-phobic CM controls. Number of phobias correlated with higher levels of anxiety and depression. Phobias are common in CM. Its recognition may influence its management. Early treatment may lead to better prognosis.

  14. Deep brain stimulation for intractable psychiatric disorders.

    Science.gov (United States)

    Goodman, Wayne K; Alterman, Ron L

    2012-01-01

    Deep brain stimulation (DBS) has virtually replaced ablative neurosurgery for use in medication-refractory movement disorders. DBS is now being studied in severe psychiatric conditions, such as treatment-resistant depression (TRD) and intractable obsessive-compulsive disorder (OCD). Effects of DBS have been reported in ∼100 cases of OCD and ∼50 cases of TRD for seven (five common) anatomic targets. Although these published reports differ with respect to study design and methodology, the overall response rate appears to exceed 50% in OCD for some DBS targets. In TRD, >50% of patients responded during acute and long-term bilateral electrical stimulation in a different target. DBS was generally well tolerated in both OCD and TRD, but some unique, target- and stimulation-specific adverse effects were observed (e.g., hypomania). Further research is needed to test the efficacy and safety of DBS in psychiatric disorders, compare targets, and identify predictors of response.

  15. Tension‑Type Headache - Psychiatric Perspective

    Directory of Open Access Journals (Sweden)

    João Campos Mendes

    2012-12-01

    Full Text Available Introduction: The tension‑type headaches (Ctt are the most frequent headaches in the general population and those with higher socio‑economic impact, given the high degree of disability they cause. Objective: The authors propose to conduct a review of the available literature on the subject, from a psychiatric perspective. Discussion: Several studies have identified a higher prevalence of psychiatric disorders, personality traits and ineffective coping mechanisms in patients with Ctt, so it is essential to understand this relationship and the impact of these psychopathological factors on this kind of headaches. Conclusion: Their clinical and therapeutic approach is hampered by these and other factors and multiple strategies of pharmacological and psycho‑behavioral treatment have been used on them, however, scientific evidence is still scarce.

  16. Tension‑Type Headache - Psychiatric Perspective

    Directory of Open Access Journals (Sweden)

    João Campos Mendes

    2013-11-01

    Full Text Available Introduction: The tension‑type headaches (Ctt are the most frequent headaches in the general population and those with higher socio‑economic impact, given the high degree of disability they cause. Objective: The authors propose to conduct a review of the available literature on the subject, from a psychiatric perspective. Discussion: Several studies have identified a higher prevalence of psychiatric disorders, personality traits and ineffective coping mechanisms in patients with Ctt, so it is essential to understand this relationship and the impact of these psychopathological factors on this kind of headaches. Conclusion: Their clinical and therapeutic approach is hampered by these and other factors and multiple strategies of pharmacological and psycho‑behavioral treatment have been used on them, however, scientific evidence is still scarce.

  17. Genetics and genomics of psychiatric disease.

    Science.gov (United States)

    Geschwind, Daniel H; Flint, Jonathan

    2015-09-25

    Large-scale genomic investigations have just begun to illuminate the molecular genetic contributions to major psychiatric illnesses, ranging from small-effect-size common variants to larger-effect-size rare mutations. The findings provide causal anchors from which to understand their neurobiological basis. Although these studies represent enormous success, they highlight major challenges reflected in the heterogeneity and polygenicity of all of these conditions and the difficulty of connecting multiple levels of molecular, cellular, and circuit functions to complex human behavior. Nevertheless, these advances place us on the threshold of a new frontier in the pathophysiological understanding, diagnosis, and treatment of psychiatric disease. Copyright © 2015, American Association for the Advancement of Science.

  18. Atoms, Radiation, and Radiation Protection

    CERN Document Server

    Turner, James E

    2007-01-01

    Atoms, Radiation, and Radiation Protection offers professionals and advanced students a comprehensive coverage of the major concepts that underlie the origins and transport of ionizing radiation in matter. Understanding atomic structure and the physical mechanisms of radiation interactions is the foundation on which much of the current practice of radiological health protection is based. The work covers the detection and measurement of radiation and the statistical interpretation of the data. The procedures that are used to protect man and the environment from the potential harmful effects of

  19. Connectomic intermediate phenotypes for psychiatric disorders

    Directory of Open Access Journals (Sweden)

    Alex eFornito

    2012-04-01

    Full Text Available Psychiatric disorders are phenotypically heterogeneous entities with a complex genetic basis. To mitigate this complexity, many investigators study so-called intermediate phenotypes that putatively provide a more direct index of the physiological effects of candidate genetic risk variants than overt psychiatric syndromes. Magnetic resonance imaging (MRI is a particularly popular technique for measuring such phenotypes because it allows interrogation of diverse aspects of brain structure and function in vivo. Much of this work however, has focused on relatively simple measures that quantify variations in the physiology or tissue integrity of specific brain regions in isolation, contradicting an emerging consensus that most major psychiatric disorders do not arise from isolated dysfunction in one or a few brain regions, but rather from disturbed interactions within and between distributed neural circuits; i.e., they are disorders of brain connectivity. The recent proliferation of new MRI techniques for comprehensively mapping the entire connectivity architecture of the brain, termed the human connectome, has provided a rich repertoire of tools for understanding how genetic variants implicated in mental disorder impact distinct neural circuits. In this article, we review research using these connectomic techniques to understand how genetic variation influences the connectivity and topology of human brain networks. We highlight recent evidence from twin and imaging genetics studies suggesting that the penetrance of candidate risk variants for mental illness, such as those in SLC6A4, MAOA, ZNF804A and APOE, may be higher for intermediate phenotypes characterised at the level of distributed neural systems than at the level of spatially localised brain regions. The findings indicate that imaging connectomics provides a powerful framework for understanding how genetic risk for psychiatric disease is expressed through altered structure and function of

  20. Chromosomal abnormalities in child psychiatric patients.

    OpenAIRE

    Hong, K. E.; Kim, J. H.; Moon, S. Y.; Oh, S. K.

    1999-01-01

    To determine the frequency of chromosomal abnormalities in a child psychiatric population, and to evaluate possible associations between types of abnormalities and patient's clinical characteristics, cytogenetic examination was performed on 604 patients. Demographic data, reasons for karyotyping, clinical signs, and other patient characteristics were assessed and correlated with the results from karyotyping. Chromosomal abnormalities were found in 69 patients (11.3%); these were structural in...