WorldWideScience

Sample records for research field references

  1. Researching Refugee and Forced Migration Studies: An Introduction to the Field and the Reference Literature.

    Science.gov (United States)

    Mason, Elisa

    1999-01-01

    Describes the evolution of refugee and forced migration studies, identifies factors that render it a challenging field to research, and highlights a variety of Internet-based and other electronic resources that can be used to locate monographs, periodicals, grey literature, and current information. Provides a bibliography of reference materials in…

  2. International Geomagnetic Reference Field

    DEFF Research Database (Denmark)

    Finlay, Chris; Maus, S.; Beggan, C. D.

    2010-01-01

    The eleventh generation of the International Geomagnetic Reference Field (IGRF) was adopted in December 2009 by the International Association of Geomagnetism and Aeronomy Working Group V‐MOD. It updates the previous IGRF generation with a definitive main field model for epoch 2005.0, a main field...... model for epoch 2010.0, and a linear predictive secular variation model for 2010.0–2015.0. In this note the equations defining the IGRF model are provided along with the spherical harmonic coefficients for the eleventh generation. Maps of the magnetic declination, inclination and total intensity...

  3. Efficient Location of Research Reference Sources in the Field of Dance.

    Science.gov (United States)

    Kissinger, Pat; Jay, Danielle

    More than 45 basic dance reference research sources that would be useful to students, scholars, teachers, historians, and therapists are discussed in this bibliographic essay. Aspects of dance covered include choreography, criticism, teaching principles, aesthetic theory, dance therapy, and history. Sources are grouped by type: dictionaries and…

  4. Field Research Facility

    Data.gov (United States)

    Federal Laboratory Consortium — The Field Research Facility (FRF) located in Duck, N.C. was established in 1977 to support the U.S. Army Corps of Engineers' coastal engineering mission. The FRF is...

  5. Neutron Reference Benchmark Field Specification: ACRR Free-Field Environment (ACRR-FF-CC-32-CL).

    Energy Technology Data Exchange (ETDEWEB)

    Vega, Richard Manuel [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Parma, Edward J. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Griffin, Patrick J. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Vehar, David W. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

    2015-07-01

    This report was put together to support the International Atomic Energy Agency (IAEA) REAL- 2016 activity to validate the dosimetry community’s ability to use a consistent set of activation data and to derive consistent spectral characterizations. The report captures details of integral measurements taken in the Annular Core Research Reactor (ACRR) central cavity free-field reference neutron benchmark field. The field is described and an “a priori” calculated neutron spectrum is reported, based on MCNP6 calculations, and a subject matter expert (SME) based covariance matrix is given for this “a priori” spectrum. The results of 31 integral dosimetry measurements in the neutron field are reported.

  6. Academic Librarians Should Be Sensitive to Language and Cultural Barriers When Providing Reference Service to International Students. A review of: Curry, Ann and Deborah Copeman. “Reference Service to International Students: A Field Stimulation Research Study.” Journal of Academic Librarianship 31.5 (Sep. 2005: 409‐20.

    Directory of Open Access Journals (Sweden)

    Lorie A. Kloda

    2006-12-01

    Full Text Available Objective – To evaluate the quality of reference service provided to non‐native, English‐speaking international students in academic libraries.Design – Field stimulation (unobtrusive testing.Setting – Eleven college and university libraries in the lower mainland of British Columbia, Canada, in the fall of 2003.Subjects – Library staff offering reference service at one of the participating libraries.Methods – The study utilized field stimulation, whereby an individual, or “proxy,” posed as a library user and initiated a reference encounter with library staff at each institution. In each case the proxy asked the same question to the library staff member. After the interaction was completed the proxy recorded all observed behaviours. Data were collected using a checklist of actions; a narrative record written by the proxy; and several evaluative questions. Each library was visited by the same proxy on two separate occasions for a total of 22 visits, of which 20 instances resulted in usable data. The narrative recordings of the reference encounters were analyzed using an open coding process.Main results – In 75% of the cases, the proxy was “‘satisfied” or “very satisfied” with help received from the library staff member and was “likely to” or “definitely would return to the staff member” in the future. The reference encounters lasted between a few minutes to half an hour in length, with most lasting between 5 and 15 minutes. Encounters that were brief (less than 5 minutes resulted in an evaluation of “dissatisfied” or “very dissatisfied” and “not likely to” or “definitely would not return.” Encounters where the library staff member extended an invitation to the proxy to return in the future were all rated with “high satisfaction” and “willingness to return.” The following reference service actions were observed in at least half of the encounters:• Asked questions for clarification (20

  7. International Geomagnetic Reference Field: the 12th generation

    DEFF Research Database (Denmark)

    Thébault, Erwan; Finlay, Chris; Beggan, Ciarán D.

    2015-01-01

    The 12th generation of the International Geomagnetic Reference Field (IGRF) was adopted in December 2014 by the Working Group V-MOD appointed by the International Association of Geomagnetism and Aeronomy (IAGA). It updates the previous IGRF generation with a definitive main field model for epoch ...

  8. International Geomagnetic Reference Field: the 12th generation

    OpenAIRE

    Thébault , Erwan; Finlay , Christopher ,; Beggan , Ciarán ,; Alken , Patrick; Aubert , Julien ,; Barrois , Olivier; Bertrand , François; Bondar , Tatiana; Boness , Axel; Brocco , Laura; Canet , Elisabeth ,; Chambodut , Aude; Chulliat , Arnaud ,; Coïsson , Pierdavide ,; Civet , François

    2015-01-01

    International audience; The 12th generation of the International Geomagnetic Reference Field (IGRF) was adopted in December 2014 by the Working Group V-MOD appointed by the International Association of Geomagnetism and Aeronomy (IAGA). It updates the previous IGRF generation with a definitive main field model for epoch 2010.0, a main field model for epoch 2015.0, and a linear annual predictive secular variation model for 2015.0-2020.0. Here, we present the equations defining the IGRF model, p...

  9. The International Geomagnetic Reference Field: the twelfth generation

    Science.gov (United States)

    Thebault, Erwan; Finlay, Christopher; The IGRF Working Group

    2015-04-01

    The IGRF is an internationally-agreed reference model of the Earth's magnetic field produced under the auspices of the International Association of Geomagnetism and Aeronomy. The IGRF-12 is the latest update of this well-known model which is used each year by many thousands of users for both industrial and scientific purposes. In October 2014, ten institutions worldwide have made contributions to the IGRF. These models were evaluated and the twelfth generation of the International Geomagnetic Reference Field (IGRF) was adopted in December 2014. In this presentation, we will report on the IGRF activities, briefly describe the candidate models, summarize the evaluation of models performed by different independent teams, show how the IGRF-12 models were calculated and finally discuss some of the main magnetic features of this new model.

  10. Extremity ring dosimetry intercomparison in reference and workplace fields

    International Nuclear Information System (INIS)

    Ginjaume, M.; Carinou, E.; Donadille, L.; Jankowski, J.; Rimpler, A.; Sans Merce, M.; Vanhavere, F.; Denoziere, M.; Daures, J.; Bordy, J. M.; Itie, C.; Covens, P.

    2008-01-01

    An intercomparison of ring dosemeters has been organised with the aim of assessing the technical capabilities of available extremity dosemeters and focusing on their performance at clinical workplaces with potentially high extremity doses. Twenty-four services from 16 countries participated in the intercomparison. The dosemeters were exposed to reference photon ( 137 Cs) and beta ( 147 Pm, 85 Kr and 90 Sr/ 90 Y) fields together with fields representing realistic exposure situations in interventional radiology (direct and scattered radiation) and nuclear medicine ( 99m Tc and 18 F). It has been found that most dosemeters provided satisfactory measurements of H p (0.07) for photon radiation, both in reference and realistic fields. However, only four dosemeters fulfilled the established requirements for all radiation qualities. The main difficulties were found for the measurement of low-energy beta radiation. Finally, the results also showed a general under-response of detectors to 18 F, which was attributed to the difficulties of the dosimetric systems to measure the positron contribution to the dose. (authors)

  11. Neutron beam experiments using nuclear research reactors: honoring the retirement of professor Bernard W. Wehring -II. 5. Testing Moderating Detection Systems with 252Cf-Based Reference Neutron Fields

    International Nuclear Information System (INIS)

    Hertel, Nolan E.; Sweezy, Jeremy; Sauber, Jeremiah S.; Vaughn, David; Cook, Andrew; Tays, Jeff; Ro, Tae-Ik

    2001-01-01

    In recent years, Georgia Institute of Technology (Georgia Tech) has been involved in a number of neutron dosimetry research projects. Several reference neutron fields are now available for such projects. They are all based on the use of a 252 Cf source. The source can be used by itself to create a reference un-moderated 252 Cf neutron field, or it can be placed inside several different moderating assemblies. The spectra created by placing the source inside these assemblies and the un-moderated source are employed to investigate detector and dosimeter responses. Currently, the set of moderators available includes a 30-cm diam cadmium-covered D 2 O spherical shell, a 30-cm-thick iron spherical shell, a 30-cm-diam polyethylene spherical shell, an 18.3-cm-thick tungsten spherical shell, a 16-cm-thick lead spherical shell, and a 9-cm-thick tantalum spherical shell. In addition, the 252 Cf source can be placed inside a neutron howitzer recently constructed at Georgia Tech. The howitzer is a WEP cylinder loaded with boron that has a 10.16-cm-diam cylindrical opening. When the source is placed in the cylindrical penetration of the howitzer, a neutron field ∼30 cm in diameter is created at a distance of 50 cm from the californium source. Over the last few years, Bonner sphere spectrometers using LiI(Eu) scintillators and LiF thermoluminescence dosimeters have been calibrated using this facility at Georgia Tech. Recently, the Neely Nuclear Research Center (NNRC) acquired an LB 6411 neutron probe (product of EG and G Berthold). This probe is designed to measure ambient dose equivalent in accordance with International Commission on Radiological Protection Publication 60 recommendations. It consists of a cylindrical 3 He proportional counter surrounded by a 25-cm-diam spherical polyethylene moderator. Its neutron response is optimized for dose rate measurements of neutrons between thermal energies and 20 MeV (Ref. 5). As a test of the instrument's ability to measure ambient

  12. Information field for historical research

    Directory of Open Access Journals (Sweden)

    Sviatets, Yu. A.

    2017-09-01

    Full Text Available The article analyzes the main information collision of historical knowledge, which consists in physical inaccessibility of events and phenomena of the past as an object of historical science for a historian as an investigator. The aim of the research is to formulate and discuss a working hypothesis about the information field of historical science. The article provides an analytical background on the main ideas and approaches in the field of modern information field theory. The author carries out the projection of the main provisions of the information field theory on historical research. It is shown that the information field is a really existing information carrier that provides its acquisition, transportation, storage and visualization, as well as provides information and knowledge recorded in various forms, realizes cultural communications. One of the manifestations of such a culture is the sign systems, which determine certain contexts. Signs are characterized by polysemy. Despite artificial origin, semiotic reality is objective. Simultaneously, signs provide intellectual activity of people. Mental signs in the historical process of use by society acquire additional meanings, generating new symbols. Polysemy shapes the problem of epistemological uncertainty of two stages – identifying the problem and solving it. Historians as researchers resort to cognitive models, which, thanks to the translational function, ensure the transfer of information from the known to the unknown. One of the explanations of polysemy is the theory of conceptual integration, according to which the structures of the original mental spaces are projected onto a new, constructed, mental space – blend. This is the result of a personʼs intellectual ability to create new meanings on the basis of the available ones. Since signs and symbols are multi-valued, they form a multiplicity of retrospective scenarios of historical research at the stage of problem formulation

  13. Research within the disciplines foundations for reference and library instruction

    CERN Document Server

    Keeran, Peggy

    2014-01-01

    Research within the Disciplines is designed to help reference librarians - and students studying to become librarians - gain that deeper understanding of disciplinary differences that allows them to comfortably solve information needs rather than merely responding to questions, and practical knowledge about how to work with researchers in a library setting.

  14. Influences upon pediatricians’ willingness to refer patients to clinical research

    Directory of Open Access Journals (Sweden)

    Jeanne Dalen

    2010-03-01

    Full Text Available Jeanne Dalen1, Robert D Annett2, Janet L Brody1, Mandy L Perryman31Center for Family and Adolescent Research, Oregon Research Institute, Portland, OR, USA; 2University of New Mexico Health Sciences Center, Albuquerque, NM, USA; 3School of Education and Human Development, Lynchburg College, Lynchburg, UA, USAPurpose: The purpose of this brief report is to determine factors that influence the willingness of pediatricians to refer their patients to clinical research and to explore the relationship between pediatrician characteristics and self-reported number of patients referred to clinical research.Method: Forty-three pediatricians from an academic pediatrics department of a university children’s hospital in Albuquerque, New Mexico rated how influential 10 reasons would be in their decision to refer a patient to pediatric clinical research.Results: Differences among the influences for pediatrician referral to research were observed. The most influential consideration for referral was the scientific merit of the study, followed by patient benefit. Contextual factors and physician compensation were identified as the least important reasons pediatricians refer patients to research. Analyses also revealed significant relationships between referrals made and percentage of time spent in research activities.Conclusions: Pediatricians may be more likely to refer their patients to clinical research studies when they believe the purpose of the study is meaningful to patients as well as to future patient populations. In addition, characteristics of the individual pediatricians may play an important role in actual referral behavior.Keywords: recruitment, clinical research, adolescent research, pediatrician attitudes

  15. The PTB thermal neutron reference field at GeNF

    International Nuclear Information System (INIS)

    Boettger, R.; Friedrich, H.; Janssen, H.

    2004-01-01

    The experimental setup and procedure for the characterization of the thermal neutron reference field established at the Geesthacht neutron facility (GeNF) of the GKSS is described. The neutron beam, free in air, with a maximum flux of 10 6 s -1 , can easily be reduced to less than 10 4 s -1 by using a diaphragm variable in size and without changing the beam divergence. Also, the spectral distribution with a mean energy of 45 meV, measured by time-of-flight over a 6.6 m long flight path, is independent of the beam current chosen. In the 2002/2003 experiments reported here, a 6 Li glass detector was employed to determine the absolute beam current and to calibrate the 3 He transmission beam monitor. In addition, activation measurements of gold foils were carried out at a reduced beam divergence. The results agree within ±2%. Furthermore, the beam is characterized by a low gamma background intensity and a negligible fraction of epithermal neutrons. Irradiations in combination with a scanner device to achieve a homogeneously illuminated scan field have shown that the thermal beam is well suited for dosemeter development and for the calibration of radiation protection instruments. (orig.)

  16. The PTB thermal neutron reference field at GeNF

    Energy Technology Data Exchange (ETDEWEB)

    Boettger, R.; Friedrich, H.; Janssen, H.

    2004-07-01

    The experimental setup and procedure for the characterization of the thermal neutron reference field established at the Geesthacht neutron facility (GeNF) of the GKSS is described. The neutron beam, free in air, with a maximum flux of 10{sup 6} s{sup -1}, can easily be reduced to less than 10{sup 4} s{sup -1} by using a diaphragm variable in size and without changing the beam divergence. Also, the spectral distribution with a mean energy of 45 meV, measured by time-of-flight over a 6.6 m long flight path, is independent of the beam current chosen. In the 2002/2003 experiments reported here, a {sup 6}Li glass detector was employed to determine the absolute beam current and to calibrate the {sup 3}He transmission beam monitor. In addition, activation measurements of gold foils were carried out at a reduced beam divergence. The results agree within {+-}2%. Furthermore, the beam is characterized by a low gamma background intensity and a negligible fraction of epithermal neutrons. Irradiations in combination with a scanner device to achieve a homogeneously illuminated scan field have shown that the thermal beam is well suited for dosemeter development and for the calibration of radiation protection instruments. (orig.)

  17. Report on the consultants' meeting to: Outline a co-ordinated research project on trace element speciation to enhance technology transfer in this field by the development of suitable methodologies and/or the production of suitably characterised reference materials

    International Nuclear Information System (INIS)

    2001-01-01

    In the environment and in man, the total concentration of a given element in a sample is almost always comprised of two or more discrete chemical forms. The toxicological or nutritive impact of the element in the sample in the environment or when ingested by man will be dependent upon the properties of its individual components. Therefore, in order to make meaningful benefit or risk assessment statements, it is essential to have a knowledge of the forms and relative amounts of an element in a given matrix. When the analyte in question is only present at total concentrations at the trace level (mg.kg -1 ) or below, the problems involved in obtaining this information become much more complex. The term trace metal speciation has been coined to refer to the determination of the chemical forms and quantities of an analyte present in a sample at the trace (and ultra trace) level. Even at such relatively low levels, the presence or absence of specific forms of an analyte can have serious consequences in terms of trade, health and environmental management. In light of the PPAS External Reviewers' Report of the Consultants' Meeting on Analytical Quality Control Services (October 1997, Vienna) which recommended that characterisation of chemical species should be undertaken in AQCS reference materials, the Agency decided to convene a consultants' meeting specifically to advise it on the importance of trace metal speciation, the state of the art and the value of a CRP to address aspects of speciation in order to facilitate technology transfer and equip member states with appropriate tools to meet the challenges posed. Five scientists, recognised as experts in the field of trace metal speciation were identified and invited to the Agency's headquarters to act as consultants. The meeting was held at the Vienna International Centre from 23rd to 26th November 1998. The first day of the meeting was given over to presentations from the consultants on various aspects of trace element

  18. Reference radiation fields - Simulated workplace neutron fields - Part 2: Calibration fundamentals related to the basic quantities

    International Nuclear Information System (INIS)

    2008-01-01

    ISO 8529-1, ISO 8529-2 and ISO 8529-3, deal with the production, characterization and use of neutron fields for the calibration of personal dosimeters and area survey meters. These International Standards describe reference radiations with neutron energy spectra that are well defined and well suited for use in the calibration laboratory. However, the neutron spectra commonly encountered in routine radiation protection situations are, in many cases, quite different from those produced by the sources specified in the International Standards. Since personal neutron dosimeters, and to a lesser extent survey meters, are generally quite energy dependent in their dose equivalent response, it might not be possible to achieve an appropriate calibration for a device that is used in a workplace where the neutron energy spectrum and angular distribution differ significantly from those of the reference radiation used for calibration. ISO 8529-1 describes four radionuclide based neutron reference radiations in detail. This part of ISO 12789 includes the specification of neutron reference radiations that were developed to closely resemble radiation that is encountered in practice

  19. Consistent Feature Extraction From Vector Fields: Combinatorial Representations and Analysis Under Local Reference Frames

    Energy Technology Data Exchange (ETDEWEB)

    Bhatia, Harsh [Univ. of Utah, Salt Lake City, UT (United States)

    2015-05-01

    This dissertation presents research on addressing some of the contemporary challenges in the analysis of vector fields—an important type of scientific data useful for representing a multitude of physical phenomena, such as wind flow and ocean currents. In particular, new theories and computational frameworks to enable consistent feature extraction from vector fields are presented. One of the most fundamental challenges in the analysis of vector fields is that their features are defined with respect to reference frames. Unfortunately, there is no single “correct” reference frame for analysis, and an unsuitable frame may cause features of interest to remain undetected, thus creating serious physical consequences. This work develops new reference frames that enable extraction of localized features that other techniques and frames fail to detect. As a result, these reference frames objectify the notion of “correctness” of features for certain goals by revealing the phenomena of importance from the underlying data. An important consequence of using these local frames is that the analysis of unsteady (time-varying) vector fields can be reduced to the analysis of sequences of steady (timeindependent) vector fields, which can be performed using simpler and scalable techniques that allow better data management by accessing the data on a per-time-step basis. Nevertheless, the state-of-the-art analysis of steady vector fields is not robust, as most techniques are numerical in nature. The residing numerical errors can violate consistency with the underlying theory by breaching important fundamental laws, which may lead to serious physical consequences. This dissertation considers consistency as the most fundamental characteristic of computational analysis that must always be preserved, and presents a new discrete theory that uses combinatorial representations and algorithms to provide consistency guarantees during vector field analysis along with the uncertainty

  20. Nuclide release calculation in the near-field of a reference HLW repository

    International Nuclear Information System (INIS)

    Lee, Youn Myoung; Hwang, Yong Soo; Kang, Chul Hyung

    2004-01-01

    The HLW-relevant R and D program for disposal of high-level radioactive waste has been carried out at Korea Atomic Energy Research Institute (KAERI) since early 1997 in order to develop a conceptual Korea Reference Repository System for direct disposal of nuclear spent fuel by the end of 2007. A preliminary reference geologic repository concept considering such established criteria and requirements as waste and generic site characteristics in Korea was roughly envisaged in 2003 focusing on the near-field components of the repository system. According to above basic repository concept, which is similar to that of Swedish KBS-3 repository, the spent fuel is first encapsulated in corrosion resistant canisters, even though the material has not yet been determined, and then emplaced into the deposition holes surrounded by high density bentonite clay in tunnels constructed at a depth of about 500 m in a stable plutonic rock body. Not only to demonstrate how much a reference repository is safe in the generic point of view with several possible scenarios and cases associated with a preliminary repository concept by conducting calculations for nuclide release and transport in the near-field components of the repository, even though enough information has not been available that much yet, but also to show a methodology by which a generic safety assessment could be performed for further development of Korea reference repository concept, nuclide release calculation study strongly seems to be necessary

  1. TORCH Computational Reference Kernels - A Testbed for Computer Science Research

    Energy Technology Data Exchange (ETDEWEB)

    Kaiser, Alex; Williams, Samuel Webb; Madduri, Kamesh; Ibrahim, Khaled; Bailey, David H.; Demmel, James W.; Strohmaier, Erich

    2010-12-02

    For decades, computer scientists have sought guidance on how to evolve architectures, languages, and programming models in order to improve application performance, efficiency, and productivity. Unfortunately, without overarching advice about future directions in these areas, individual guidance is inferred from the existing software/hardware ecosystem, and each discipline often conducts their research independently assuming all other technologies remain fixed. In today's rapidly evolving world of on-chip parallelism, isolated and iterative improvements to performance may miss superior solutions in the same way gradient descent optimization techniques may get stuck in local minima. To combat this, we present TORCH: A Testbed for Optimization ResearCH. These computational reference kernels define the core problems of interest in scientific computing without mandating a specific language, algorithm, programming model, or implementation. To compliment the kernel (problem) definitions, we provide a set of algorithmically-expressed verification tests that can be used to verify a hardware/software co-designed solution produces an acceptable answer. Finally, to provide some illumination as to how researchers have implemented solutions to these problems in the past, we provide a set of reference implementations in C and MATLAB.

  2. Historical Origins of Information Behavior Research by Reference Publication Year Spectroscopy

    Directory of Open Access Journals (Sweden)

    Faramarz Soheili

    2015-12-01

    Full Text Available Background: Using a quantitative method named reference publication year spectroscopy (RPYS, this research tried to determine the historical roots of information behavior research. RPYS pave the way for determining the significant years and works in information behavior. Methodology: Using scientometric method, the initial data of this study, have been extracted from the Web of Science. Using RPYS software, the revised data were analyzed and visualized in Excel. Finding: The distribution of cited references in information behavior revealed three peaks within 19th century. Moreover, our analysis identified 6 peaks between 1900 to 1969 in the field of information behavior, respectively in 1948, 1954, 1957, 1960, 1965, and 1967 has occurred. Results: Based on the study findings, it seems that information behavior research has been shaped intellectually by fields such as Psychology, quantitative and qualitative methodologies, etc. Additionally, it has been influenced by some theories and theoretical works.

  3. Guidelines for Field Research Reports

    International Development Research Centre (IDRC) Digital Library (Canada)

    Jean-Claude Dumais

    Your Award Grant Agreement specifies the number of reports required throughout your tenure as well as the due dates for such reports. The form of your report will vary, depending on the nature of your research, your methodological approach, and your participation in related activities such as conferences, etc. However ...

  4. The Egyptian geomagnetic reference field to the Epoch, 2010.0

    Science.gov (United States)

    Deebes, H. A.; Abd Elaal, E. M.; Arafa, T.; Lethy, A.; El Emam, A.; Ghamry, E.; Odah, H.

    2017-06-01

    The present work is a compilation of two tasks within the frame of the project ;Geomagnetic Survey & Detailed Geomagnetic Measurements within the Egyptian Territory; funded by the ;Science and Technology Development Fund agency (STDF);. The National Research Institute of Astronomy and Geophysics (NRIAG), has conducted a new extensive land geomagnetic survey that covers the whole Egyptian territory. The field measurements have been done at 3212 points along all the asphalted roads, defined tracks, and ill-defined tracks in Egypt; with total length of 11,586 km. In the present work, the measurements cover for the first time new areas as: the southern eastern borders of Egypt including Halayeb and Shlatin, the Quattara depresion in the western desert, and the new roads between Farafra and Baharia oasis. Also marine geomagnetic survey have been applied for the first time in Naser lake. Misallat and Abu-Simble geomagnetic observatories have been used to reduce the field data to the Epoch 2010. During the field measurements, whenever possible, the old stations occupied by the previous observers have been re-occupied to determine the secular variations at these points. The geomagnetic anomaly maps, the normal geomagnetic field maps with their corresponding secular variation maps, the normal geomagnetic field equations of the geomagnetic elements (EGRF) and their corresponding secular variations equations, are outlined. The anomalous sites, as discovered from the anomaly maps are, only, mentioned. In addition, a correlation between the International Geomagnetic Reference Field (IGRF) 2010.0 and the Egyptian Geomagnetic Reference Field (EGRF) 2010 is indicated.

  5. The Egyptian geomagnetic reference field to the Epoch, 2010.0

    Directory of Open Access Journals (Sweden)

    H.A. Deebes

    2017-06-01

    The geomagnetic anomaly maps, the normal geomagnetic field maps with their corresponding secular variation maps, the normal geomagnetic field equations of the geomagnetic elements (EGRF and their corresponding secular variations equations, are outlined. The anomalous sites, as discovered from the anomaly maps are, only, mentioned. In addition, a correlation between the International Geomagnetic Reference Field (IGRF 2010.0 and the Egyptian Geomagnetic Reference Field (EGRF 2010 is indicated.

  6. ENTREPRENEURSHIP IN THE RESEARCH FIELD

    Directory of Open Access Journals (Sweden)

    Adriana RADAN UNGUREANU

    2014-11-01

    Full Text Available The World is in a continuous change at the level of all its components including entrepreneurship, the most dynamic element of the business activity. Another direction of change comes from technologies called “key enabling technologies” and represents a revolution in using raw materials and shapes the entire industrial process, obtaining competitive advantages. This paper tries to find a realistic answer to the question: is it possible to follow the global trend of technologies and to foster them in Romania? A realistic picture supplied by statistical data correlated with elements of the national plan of research and development offers a more theoretical approach since practical examples are almost non-existent, but the potential to apply these ideas through entrepreneurship is promising. Meeting recommended goals from this paper, through cooperation between private companies, state and academies, creativity and innovation will boost new ideas for a better life in a healthier Romania.

  7. Validation of IRDFF in 252Cf Standard and IRDF-2002 Reference Neutron Fields

    Directory of Open Access Journals (Sweden)

    Simakov Stanislav

    2016-01-01

    Full Text Available The results of validation of the latest release of International Reactor Dosimetry and Fusion File, IRDFF-1.03, in the standard 252Cf(s.f. and reference 235U(nth,f neutron benchmark fields are presented. The spectrum-averaged cross sections were shown to confirm IRDFF-1.03 in the 252Cf standard spontaneous fission spectrum; that was not the case for the current recommended spectra for 235U(nth,f. IRDFF was also validated in the spectra of the research reactor facilities ISNF, Sigma-Sigma and YAYOI, which are available in the IRDF-2002 collection. The ISNF facility was re-simulated to remove unphysical oscillations in the spectrum. IRDFF-1.03 was shown to reproduce reasonably well the spectrum-averaged data measured in these fields except for the case of YAYOI.

  8. The use of the empirical mode decomposition for the identification of mean field aligned reference frames

    Directory of Open Access Journals (Sweden)

    Mauro Regi

    2017-01-01

    Full Text Available The magnetic field satellite data are usually referred to geocentric coordinate reference frame. Conversely, the magnetohydrodynamic waves modes in magnetized plasma depend on the ambient magnetic field, and is then useful to rotate the magnetic field measurements into the mean field aligned (MFA coordinate system. This reference frame is useful to study the ultra low frequency magnetic field variations along the direction of the mean field and perpendicularly to it. In order to identify the mean magnetic field the classical moving average (MAVG approach is usually adopted but, under particular conditions, this procedure induces undesired features, such as spectral alteration in the rotated components. We discuss these aspects promoting an alternative and more efficient method for mean field aligned projection, based on the empirical mode decomposition (EMD.

  9. Gender inequality in the field of science and research

    Directory of Open Access Journals (Sweden)

    Blanka Poczatková

    2017-05-01

    Full Text Available The article focuses on gender inequality in the field of science and research in the Czech Republic. The authors of this article present an unbiased view on women in science and research and they also point out that gender inequality still exists in Russia and the USA. Based on accessible statistical and information data (see references that have been elaborated by synthetic-analytical methods, this article authors state their opinion to this topic.

  10. Gender inequality in the field of science and research

    OpenAIRE

    Blanka Poczatková; Pavlína Křibíková

    2017-01-01

    The article focuses on gender inequality in the field of science and research in the Czech Republic. The authors of this article present an unbiased view on women in science and research and they also point out that gender inequality still exists in Russia and the USA. Based on accessible statistical and information data (see references) that have been elaborated by synthetic-analytical methods, this article authors state their opinion to this topic.

  11. Reducing the ecological impact of field research.

    Science.gov (United States)

    Bezanson, Michelle; Stowe, Rochelle; Watts, Sean M

    2013-01-01

    Researchers and students at biological field stations, especially in remote areas, are subject to leaving "footprints," as we conduct research, work, and live in sensitive ecosystems. These footprints include travel, personal trash and waste, and field equipment (e.g. flagging, tree markers, plot markers, trail markers, monitoring devices, etc.). In this commentary, we argue that the field of primatology's commitment to minimum impact research should be more explicitly and visibly integrated into our ethical protocols with regard to field research and instruction in sensitive environments. We review current ethical codes and potential solutions to reducing our "researcher footprints" while conducting fieldwork. Using Costa Rica as an example, we address how sustainable fieldwork differs among varying cultural contexts and argue that researchers should be made responsible and accountable for how our presence, research, and teaching might impact the environment. We conclude by recommending a set of guidelines to be added to ethical protocols regarding research design, station policies, and the conduct of research and teaching in the field. © 2012 Wiley Periodicals, Inc.

  12. A mapping closure for turbulent scalar mixing using a time-evolving reference field

    Science.gov (United States)

    Girimaji, Sharath S.

    1992-01-01

    A general mapping-closure approach for modeling scalar mixing in homogeneous turbulence is developed. This approach is different from the previous methods in that the reference field also evolves according to the same equations as the physical scalar field. The use of a time-evolving Gaussian reference field results in a model that is similar to the mapping closure model of Pope (1991), which is based on the methodology of Chen et al. (1989). Both models yield identical relationships between the scalar variance and higher-order moments, which are in good agreement with heat conduction simulation data and can be consistent with any type of epsilon(phi) evolution. The present methodology can be extended to any reference field whose behavior is known. The possibility of a beta-pdf reference field is explored. The shortcomings of the mapping closure methods are discussed, and the limit at which the mapping becomes invalid is identified.

  13. Is the PTW 60019 microDiamond a suitable candidate for small field reference dosimetry?

    Science.gov (United States)

    De Coste, Vanessa; Francescon, Paolo; Marinelli, Marco; Masi, Laura; Paganini, Lucia; Pimpinella, Maria; Prestopino, Giuseppe; Russo, Serenella; Stravato, Antonella; Verona, Claudio; Verona-Rinati, Gianluca

    2017-09-01

    A systematic study of the PTW microDiamond (MD) output factors (OF) is reported, aimed at clarifying its response in small fields and investigating its suitability for small field reference dosimetry. Ten MDs were calibrated under 60Co irradiation. OF measurements were performed in 6 MV photon beams by a CyberKnife M6, a Varian DHX and an Elekta Synergy linacs. Two PTW silicon diodes E (Si-D) were used for comparison. The results obtained by the MDs were evaluated in terms of absorbed dose to water determination in reference conditions and OF measurements, and compared to the results reported in the recent literature. To this purpose, the Monte Carlo (MC) beam-quality correction factor, kQMD , was calculated for the MD, and the small field output correction factors, k{{Qclin},{{Q}msr}}{{fclin},{{f}msr}} , were calculated for both the MD and the Si-D by two different research groups. An empirical function was also derived, providing output correction factors within 0.5% from the MC values calculated for all of the three linacs. A high reproducibility of the dosimetric properties was observed among the ten MDs. The experimental kQMD values are in agreement within 1% with the MC calculated ones. Output correction factors within  +0.7% and  -1.4% were obtained down to field sizes as narrow as 5 mm. The resulting MD and Si-D field factors are in agreement within 0.2% in the case of CyberKnife measurements and 1.6% in the other cases. This latter higher spread of the data was demonstrated to be due to a lower reproducibility of small beam sizes defined by jaws or multi leaf collimators. The results of the present study demonstrate the reproducibility of the MD response and provide a validation of the MC modelling of this device. In principle, accurate reference dosimetry is thus feasible by using the microDiamond dosimeter for field sizes down to 5 mm.

  14. Radiation breeding researches in gamma field. Results of researches

    International Nuclear Information System (INIS)

    Morishita, Toshikazu

    2006-01-01

    Abstract of radiation breeding researches and outline of gamma field in IRB (Institute of Radiation Breeding) are described. The gamma field is a circular field of 100 m radius with 88.8TBqCo-60 source at the center. The field is surrounded by a shielding dike of 8 m in height. The effects of gamma irradiation on the growing plants, mutant by gamma radiation and plant molecular biological researches using mutant varieties obtained by the gamma field are explained. For examples, Japanese pear, chrysanthemum, Cytisus, Eustoma grandiflorum, Manila grass, tea and rose are reported. The mutant varieties in the gamma field, nine mutant varieties of flower colors in chrysanthemum, evergreen mutant lines in Manila grass, selection of self-compatible mutants in tea plant, and the plants of the gamma field recently are shown. (S.Y.)

  15. Reference Service and Bounded Rationality: Helping Students with Research.

    Science.gov (United States)

    Chu, Felix T.

    1994-01-01

    In university libraries, reference librarians often get ambiguous questions to which they try to give appropriate answers. Because of limitations on resources, time, and mental capability for information processing, the decision-making process involved in answering reference questions becomes bounded by the rationality of these constraints.…

  16. References

    OpenAIRE

    2018-01-01

    Aldridge, H., Kenway, P. and Born, T. (2015), ‘What Happened to Poverty Under the Coalition’. New Policy Institute. Armour, R. (2014) ‘Charity Shops Buck Trend’, http://thirdforcenews.org.uk,24 March 2014. Beatty, C. and Fothergill, S. (2016), The Uneven Impact of Welfare Reform. The Financial Losses to Places and People, Centre for Regional and Social Economic Research and Sheffield Hallam University, https://www4.shu.ac.uk/research/cresr/sites/shu.ac.uk/files/welfare-reform-2016_1.pdf Belfi...

  17. Ethical considerations for field research on fishes

    Directory of Open Access Journals (Sweden)

    Rhett H. Bennett

    2016-12-01

    Full Text Available Collection of data from animals for research purposes can negatively impact target or by-catch species if suitable animal ethics practices are not followed. This study aimed to assess the ethical requirements of peer-reviewed scientific journals that publish primary literature on fishes, and review the ethical considerations and animal care guidelines of national and international documents on the ethical treatment of animals for research, to provide an overview of the general ethical considerations for field research on fishes. A review of 250 peer-reviewed, ISI-rated journals publishing primary research on fishes revealed that nearly half (46% had no mention of ethics, treatment of animals or ethical requirements for publication in their author guidelines or publication policies. However, 18% of the journals reviewed identify a specific set of ethical guidelines to be followed before publishing research involving animals. Ethical considerations for investigators undertaking field research on fishes, common to most animal care policies, legislation and guiding documents, include adhering to relevant legislation, minimising sample sizes, reducing or mitigating pain and distress, employing the most appropriate and least invasive techniques and accurately reporting methods and findings. This information will provide potential investigators with a useful starting point for designing and conducting ethical field research. Application of ethical best practices in field sampling studies will improve the welfare of study animals and the conservation of rare and endangered species. Conservation implications: This article provides a list of ethical considerations for designing and conducting field research on fishes. By reviewing sampling techniques and processes that are frequently used in field research on fishes and by highlighting the potential negative impacts of these sampling techniques, this article is intended to assist researchers in planning

  18. The International Geomagnetic Reference Field (IGRF) generation 12: BGS candidates and final models

    OpenAIRE

    Beggan, Ciaran D.; Hamilton, Brian; Taylor, Victoria; Macmillan, Susan; Thomson, Alan

    2015-01-01

    The International Geomagnetic Reference Field (IGRF) model is a reference main field magnetic model updated on a quinquennial basis. The latest revision (generation 12) was released in January 2015. The IGRF-12 consists of a definitive model (DGRF2010) of the main field for 2010.0, a model for the field at 2015.0 (IGRF2015) and a prediction of secular variation (IGRF-12 SV) for the forthcoming five years until 2020.0. The remaining coefficients of IGRF-12 are unchanged from IGRF-11. Nin...

  19. Simulation of the spherical experimental assemblies for the mixed neutron-gamma reference fields implementation

    International Nuclear Information System (INIS)

    Kluson, J.; Jansky, B.

    2009-01-01

    Reference mixed neutron-gamma fields are used for test and calibration of dosimetric and spectrometric systems, intercomparison measurements, and benchmark tests and represent experimental base for reactor studies. Set of the spherical experimental assemblies for the mixed neutron-gamma reference fields implementation was build in the NRI Rez. Extended sets of measurements and simulation calculations were done to describe the reference mixed field dosimetry and spectral characteristics with best achievable precision. The Monte Carlo technique was used for different experimental setups models description, comparison and verification and field characteristics simulation. Effects (hardly distinguishable experimentally) were also studied ( contributions from individual parts of experimental setup, field individual components and next effects as shadow shield cones transparency, etc.). Some results and main conclusions of these studies and calculations are presented and discussed. (authors)

  20. Simulation of the spherical experimental assemblies for the mixed neutron-gamma reference fields implementation

    International Nuclear Information System (INIS)

    Kluson, J.; Jansky, B.

    2008-01-01

    Reference mixed neutron-gamma fields are used for test and calibration of dosimetric and spectrometric systems, intercomparison measurements, and benchmark tests and represent experimental base for reactor studies. Set of the spherical experimental assemblies for the mixed neutron-gamma reference fields implementation was build in the NRI Rez. Extended sets of measurements and simulation calculations were done to describe the reference mixed field dosimetry and spectral characteristics with best achievable precision. The Monte Carlo technique was used for different experimental setups models description, comparison and verification and field characteristics simulation. Effects (hardly distinguishable experimentally) were also studied ( contributions from individual parts of experimental setup, field individual components and next effects as shadow shield cones transparency, etc.). Some results and main conclusions of these studies and calculations are presented and discussed. (authors)

  1. Across the Arctic Teachers Experience Field Research

    Science.gov (United States)

    Warnick, W. K.; Warburton, J.; Wiggins, H. V.; Marshall, S. A.; Darby, D. A.

    2005-12-01

    From studying snow geese on the North Slope of Alaska to sediment coring aboard the U.S. Coast Guard Cutter Healy in the Arctic Ocean, K-12 teachers embark on scientific expeditions as part of a program that strives to make science in the Arctic a "virtual" reality. In the past two years, seventeen K-12 teachers have participated in Teachers and Researchers Exploring and Collaborating (TREC), a program that pairs teachers with researchers to improve science education through arctic field experiences. TREC builds on the scientific and cultural opportunities of the Arctic, linking research and education through topics that naturally engage students and the wider public. TREC includes expeditions as diverse as studying plants at Toolik Field Station, a research facility located 150 miles above the Arctic Circle; climate change studies in Norway's Svalbard archipelago; studying rivers in Siberia; or a trans-arctic expedition aboard the USCGC Healy collecting an integrated geophysical data set. Funded by the National Science Foundation Office of Polar Programs, TREC offers educators experiences in scientific inquiry while encouraging the public and students to become active participants in the scientific inquiry by engaging them virtually in arctic research. TREC uses online outreach elements to convey the research experience to a broad audience. While in remote field locations, teachers and researchers interact with students and the public through online seminars and live calls from the field, online journals with accompanying photos, and online bulletin boards. Since the program's inception in 2004, numerous visitors have posted questions or interacted with teachers, researchers, and students through the TREC website (http://www.arcus.org/trec). TREC teachers are required to transfer their experience of research and current science into their classroom through the development of relevant activities and resources. Teachers and researchers are encouraged to participate

  2. Walnut tissue culture: research and field applications

    Science.gov (United States)

    2004-01-01

    Vitrotech Biotecnologia Vegetal began researching propagating Juglans regia (English walnut) and various Juglans hybrids by tissue culture in 1993 and has operated on a commercial scale since 1996. Since this time, more than one and a half million walnuts of different species have been propagated and field planted. Tissue cultured...

  3. Jupiter Environmental Research & Field Studies Academy.

    Science.gov (United States)

    Huttemeyer, Bob

    1996-01-01

    Describes the development and workings of the Jupiter Environmental Research and Field Studies Academy that focuses on enabling both teachers and students to participate in real-life learning experiences. Discusses qualifications for admittance, curriculum, location, ongoing projects, students, academics, preparation for life, problem solving, and…

  4. High-magnetic-field research collaborations

    International Nuclear Information System (INIS)

    Goettee, J.

    1998-01-01

    This is the final report of a two-year, Laboratory Directed Research and Development (LDRD) project at the Los Alamos National Laboratory (LANL). The purpose of this project was to develop collaborations with the academic community to exploit scientific research potential of the pulsed magnetic fields that might be possible with electrically pulsed devices, as well as magneto-cumulative generators. The author started with a campaign of experiments using high-explosive-driven flux compression generators. The campaign's objective was to explore completely novel ideas in condensed-matter physics and chemistry. The initiative was very successful in pulling together top researchers from around the world

  5. SU-E-T-471: Small Field Jaw/MLC Reference Data

    International Nuclear Information System (INIS)

    Kerns, J; Alvarez, P; Followill, D; Lowenstein, J; Molineu, A; Summers, P; Kry, S

    2014-01-01

    Purpose: In recent years the need for small field data of MLCs has increased due to the use of intensity-modulated radiation (IMRT), but moreover the use of stereotactic body radiation (SBRT) has increased, which uses not simply small field sizes, but small jaw and field sizes together. Having reference data for these small fields that is reliable would be invaluable to the physics community. Our study has gathered these values and the data distributions from the Radiological Physics Center's (RPC) site visits between 1990 and the present. Methods: For all measurements, the RPC used a 25 × 25 × 25cm water phantom placed at 100cm SSD. All measurements were made with an Exradin A16 cylindrical ion chamber at an effective depth of 10 cm. A total of 42 Varian machine measurements were used to compose the data for a 6 MV beam and 5 TrueBeam 6 MV flattening filter free (FFF) beams were used for FFF data. Results: Jaw/MLC fields were measured for both 6 MV and 6 MF FFF beams with the jaws and MLCs both at the following field sizes: 6×6, 4×4, 3×3, and 2×2cm. Measurements were normalized to the 10×10 field readings (defined by the jaws and MLC). Spread in the data was minimal and demonstrates a high level of accuracy of acquired data. Conclusion: Small field Jaw/MLC reference data for Varian 6MV and 6 MV FFF beams has been analyzed and presented here, composed of the aggregation of numerous RPC site visits. Obtaining reliable small field data remains difficult, however the RPC has collected high fidelity small field Jaw/MLC data. The data are presented as a reference along with their distributions, in such a way that the physicist can act based upon their own desired agreement with the reference data

  6. Field Research in the Teaching of Undergraduate Soil Science

    Science.gov (United States)

    Brevik, Eric C.; Senturklu, Songul; Landblom, Douglas

    2015-04-01

    Several studies have demonstrated that undergraduate students benefit from research experiences. Benefits of undergraduate research include 1) personal and intellectual development, 2) more and closer contact with faculty, 3) the use of active learning techniques, 4) creation of high expectations, 5) development of creative and problem-solving skills, 6) greater independence and intrinsic motivation to learn, and 7) exposure to practical skills. The scientific discipline also benefits, as studies have shown that undergraduates who engage in research experiences are more likely to remain science majors and finish their degree program (Lopatto, 2007). Research experiences come as close as possible to allowing undergraduates to experience what it is like to be an academic or research member of their profession working to advance their discipline. Soils form in the field, therefore, field experiences are very important in developing a complete and holistic understanding of soil science. Combining undergraduate research with field experiences can provide extremely beneficial outcomes to the undergraduate student, including increased understanding of and appreciation for detailed descriptions and data analysis as well as an enhanced ability to see how various parts of their undergraduate education come together to understand a complex problem. The experiences of the authors in working with undergraduate students on field-based research projects will be discussed, along with examples of some of the undergraduate research projects that have been undertaken. In addition, student impressions of their research experiences will be presented. Reference Lopatto, D. 2007. Undergraduate research experiences support science career decisions and active learning. CBE -- Life Sciences Education 6:297-306.

  7. Methodology to define biological reference values in the environmental and occupational fields: the contribution of the Italian Society for Reference Values (SIVR).

    Science.gov (United States)

    Aprea, Maria Cristina; Scapellato, Maria Luisa; Valsania, Maria Carmen; Perico, Andrea; Perbellini, Luigi; Ricossa, Maria Cristina; Pradella, Marco; Negri, Sara; Iavicoli, Ivo; Lovreglio, Piero; Salamon, Fabiola; Bettinelli, Maurizio; Apostoli, Pietro

    2017-04-21

    Biological reference values (RVs) explore the relationships between humans and their environment and habits. RVs are fundamental in the environmental field for assessing illnesses possibly associated with environmental pollution, and also in the occupational field, especially in the absence of established biological or environmental limits. The Italian Society for Reference Values (SIVR) determined to test criteria and procedures for the definition of RVs to be used in the environmental and occupational fields. The paper describes the SIVR methodology for defining RVs of xenobiotics and their metabolites. Aspects regarding the choice of population sample, the quality of analytical data, statistical analysis and control of variability factors are considered. The simultaneous interlaboratory circuits involved can be expected to increasingly improve the quality of the analytical data. Examples of RVs produced by SIVR are presented. In particular, levels of chromium, mercury, ethylenethiourea, 3,5,6-trichloro-2-pyridinol, 2,5-hexanedione, 1-hydroxypyrene and t,t-muconic acid measured in urine and expressed in micrograms/g creatinine (μg/g creat) or micrograms/L (μg/L) are reported. With the proposed procedure, SIVR intends to make its activities known to the scientific community in order to increase the number of laboratories involved in the definition of RVs for the Italian population. More research is needed to obtain further RVs in different biological matrices, such as hair, nails and exhaled breath. It is also necessary to update and improve the present reference values and broaden the portfolio of chemicals for which RVs are available. In the near future, SIVR intends to expand its scientific activity by using a multivariate approach for xenobiotics that may have a common origin, and to define RVs separately for children who may be exposed more than adults and be more vulnerable.

  8. Requirements for data integration platforms in biomedical research networks: a reference model.

    Science.gov (United States)

    Ganzinger, Matthias; Knaup, Petra

    2015-01-01

    Biomedical research networks need to integrate research data among their members and with external partners. To support such data sharing activities, an adequate information technology infrastructure is necessary. To facilitate the establishment of such an infrastructure, we developed a reference model for the requirements. The reference model consists of five reference goals and 15 reference requirements. Using the Unified Modeling Language, the goals and requirements are set into relation to each other. In addition, all goals and requirements are described textually in tables. This reference model can be used by research networks as a basis for a resource efficient acquisition of their project specific requirements. Furthermore, a concrete instance of the reference model is described for a research network on liver cancer. The reference model is transferred into a requirements model of the specific network. Based on this concrete requirements model, a service-oriented information technology architecture is derived and also described in this paper.

  9. Research field of fire technology in Finland

    Science.gov (United States)

    Loikkanen, P.; Holm, C.

    1987-02-01

    The goal of the study is to give an overview of the whole diversified research field of fire technology and its problems. For this reason the research subjects have been grouped so that the responsibilities of different authorities, the legislation and specifications, various fields of technology, areas of industry, and groups of products could all be found as clearly as possible. The field has been divided into nine sub-areas. They are: general grounds, fire physics and chemistry, structural fire prevention, textiles and furnishings, devices for heating and other use, detection, fire fighting and rescue, quality control, and special problems. The sub-areas have been divided into 34 main subjects and these, excluding those of special problems, further into as many as 117 subject groups. Characteristics and problems of the sub-areas and the main subjects have been described. The subject groups have been characterized by key words and concepts which outline the projects. No concrete research projects and programs have, however, been directly suggested because their extent and contents depend essentially on financing and other available resources.

  10. Assessment of a dynamic reference material for calibration of full-field measurement systems

    Science.gov (United States)

    Hack, Erwin; Feligiotti, Mara; Davighi, Andrea; Whelan, Maurice; Wang, Weizhuo V.; Patterson, Eann A.

    2012-10-01

    For holography and speckle interferometry the calibration of the sensitivity is a must, because illumination and observation directions vary across the field of view. A numerical estimate or a static calibration using rigid body motions is standard, and reference materials exist for static strain calibration. Recently, reference materials for the dynamic calibration of optical instruments of displacement and strain measurement were designed and prototypes were manufactured in the European FP7 project ADVISE. We review the properties of the reference material and the concept of traceability for the field of displacement values by using a calibrated single point transducer. The mode shape is assessed using out-of-plane DSPI, Finite Element Analysis as well as analytic solutions of the plate vibration. We present measurements using stroboscopic DSPI on the reference material under acoustic excitation and compare the measured mode shapes to the ones predicted by FE analysis. We apply different comparison methodologies based on point-by-point deviations and on decomposition of the mode shapes into a set of orthogonal basis functions. The latter method is well suited to assess stability and reproducibility of a mode shape. Finally, the deviations are used to estimate the reference material uncertainty which is an essential parameter for determining the calibration uncertainty. Uncertainty contributions of the DSPI set-up are taken into account. To conclude, the application area and limitations of the reference material are discussed.

  11. Religious Studies: The Shaping of a Field and a Guide to Reference Resources.

    Science.gov (United States)

    Lippy, Charles H.

    1992-01-01

    Discusses the development of religious studies as an academic discipline. Examines the work of leading thinkers in the field, including anthropologists Sir James Fraser and Edward Burnett Taylor, sociologist Max Weber, and psychologist Erik Erikson. Identifies some of the many reference works that deal with religious studies. (SG)

  12. State diagram of spin-torque oscillator with perpendicular reference layer and planar field generation layer

    Directory of Open Access Journals (Sweden)

    Mengwei Zhang

    2015-06-01

    Full Text Available The state diagram of spin-torque oscillator (STO with perpendicular reference layer (REF and planar field generation layer (FGL was studied by a macrospin model and a micro-magnetic model. The state diagrams are calculated versus the current density, external field and external field angle. It was found that the oscillation in FGL could be controlled by current density combined with external field so as to achieve a wide frequency range. An optimized current and applied field region was given for microwave assisted magnetic recording (MAMR, considering both frequency and output field oscillation amplitude. The results of the macro-spin model were compared with those of the micro-magnetic model. The macro-spin model was qualitatively different from micro-magnetics and experimental results when the current density was large and the FGL was non-uniform.

  13. Recent developments in the field of environmental reference materials at the JRC Ispra.

    Science.gov (United States)

    Muntau, H

    2001-06-01

    The production of reference materials for environmental analysis started in the Joint Research Centre at Ispra/Italy in 1972 with the objective of later certification by the BCR, but for obvious budget reasons only a fraction of the total production achieved at Ispra ever reached certification level, although all materials were produced according to the severe quality requirements requested for certified reference materials. Therefore, the materials not destinated to certification are in growing demand as inter-laboratory test materials and as laboratory reference materials, for internal quality control, e.g., by control charts. The history of reference material production within the Joint Research Centre is briefly reviewed and the latest additions described. New developments such as micro-scale reference materials intended for analytical methods requiring sample intakes at milligram or sub-milligram level and therefor not finding supply on the reference material market, and "wet" environmental reference materials, which meet more precisely the "real-world" environmental analysis conditions, are presented and the state-of-the-art discussed.

  14. Mapping Research in the Field of Special Education on the Island of Ireland since 2000

    Science.gov (United States)

    Travers, Joseph; Savage, Rosie; Butler, Cathal; O'Donnell, Margaret

    2018-01-01

    This paper describes the process of building a database mapping research and policy in the field of special education on the island of Ireland from 2000 to 2013. The field of study includes special educational needs, disability and inclusion. The database contains 3188 references organised thematically and forms a source for researchers to access…

  15. Classical field theory in the space of reference frames. [Space-time manifold, action principle

    Energy Technology Data Exchange (ETDEWEB)

    Toller, M [Dipartimento di Matematica e Fisica, Libera Universita, Trento (Italy)

    1978-03-11

    The formalism of classical field theory is generalized by replacing the space-time manifold M by the ten-dimensional manifold S of all the local reference frames. The geometry of the manifold S is determined by ten vector fields corresponding to ten operationally defined infinitesimal transformations of the reference frames. The action principle is written in terms of a differential 4-form in the space S (the Lagrangian form). Densities and currents are represented by differential 3-forms in S. The field equations and the connection between symmetries and conservation laws (Noether's theorem) are derived from the action principle. Einstein's theory of gravitation and Maxwell's theory of electromagnetism are reformulated in this language. The general formalism can also be used to formulate theories in which charge, energy and momentum cannot be localized in space-time and even theories in which a space-time manifold cannot be defined exactly in any useful way.

  16. Exotic behavior of molecules in intense laser light fields. New research directions

    Energy Technology Data Exchange (ETDEWEB)

    Yamanouchi, Kaoru [Tokyo Univ., Department of Chemistry, Tokyo (Japan)

    2002-08-01

    The recent investigation of the dynamical behavior of molecules and clusters in intense laser fields has afforded us invaluable opportunities to understand fundamentals of the interaction between molecular species and light fields as well as to manipulate molecules and their dynamical pathways by taking advantage of characteristics of coherent ultrashort laser light fields. In the present report, new directions of this rapidly growing interdisciplinary research fields called molecular science in intense laser fields are discussed by referring to our recent studies. (author)

  17. Summary Report of 1st Research Coordination Meeting on Development of Reference Database for Beta-delayed Neutron Emission

    International Nuclear Information System (INIS)

    Dillmann, Iris; Dimitriou, Paraskevi; Singh, Balraj

    2014-03-01

    A summary is given of the 1st Research Coordination Meeting of the new IAEA Coordinated Research Project (CRP) on Development of a Reference Database for Beta-delayed neutron emission data. Participants presented their work, reviewed the current status of the field with regards to individual precursors and aggregate data, and discussed the scope of the work to be undertaken. A list of priorities and task assignments was produced. (author)

  18. Evaluation of room-scattered neutrons at the JNC Tokai neutron reference field

    Energy Technology Data Exchange (ETDEWEB)

    Yoshida, Tadayoshi; Tsujimura, Norio [Japan Nuclear Cycle Development Inst., Tokai, Ibaraki (Japan). Tokai Works; Oyanagi, Katsumi [Japan Radiation Engineering Co., Ltd., Hitachi, Ibaraki (Japan)

    2002-09-01

    Neutron reference fields for calibrating neutron-measuring devices in JNC Tokai Works are produced by using radionuclide neutron sources, {sup 241}Am-Be and {sup 252}Cf sources. The reference field for calibration includes scattered neutrons from the material surrounding sources, wall, floor and ceiling of the irradiation room. It is, therefore, necessary to evaluate the scattered neutrons contribution and their energy spectra at reference points. Spectral measurements were performed with a set of Bonner multi-sphere spectrometers and the reference fields were characterized in terms of spectral composition and the fractions of room-scattered neutrons. In addition, two techniques stated in ISO 10647, the shadow-cone method and the polynomial fit method, for correcting the contributions from the room-scattered neutrons to the readings of neutron survey instruments were compared. It was found that the two methods gave an equivalent result within a deviation of 3.3% at a source-to-detector distance from 50cm to 500cm. (author)

  19. Evaluation of room-scattered neutrons at the JNC Tokai neutron reference field

    International Nuclear Information System (INIS)

    Yoshida, Tadayoshi; Tsujimura, Norio

    2002-01-01

    Neutron reference fields for calibrating neutron-measuring devices in JNC Tokai Works are produced by using radionuclide neutron sources, 241 Am-Be and 252 Cf sources. The reference field for calibration includes scattered neutrons from the material surrounding sources, wall, floor and ceiling of the irradiation room. It is, therefore, necessary to evaluate the scattered neutrons contribution and their energy spectra at reference points. Spectral measurements were performed with a set of Bonner multi-sphere spectrometers and the reference fields were characterized in terms of spectral composition and the fractions of room-scattered neutrons. In addition, two techniques stated in ISO 10647, the shadow-cone method and the polynomial fit method, for correcting the contributions from the room-scattered neutrons to the readings of neutron survey instruments were compared. It was found that the two methods gave an equivalent result within a deviation of 3.3% at a source-to-detector distance from 50cm to 500cm. (author)

  20. The CERN-EU high-energy Reference Field (CERF) facility: applications and latest developments

    Science.gov (United States)

    Silari, Marco; Pozzi, Fabio

    2017-09-01

    The CERF facility at CERN provides an almost unique high-energy workplace reference radiation field for the calibration and test of radiation protection instrumentation employed at high-energy accelerator facilities and for aircraft and space dosimetry. This paper describes the main features of the facility and supplies a non-exhaustive list of recent (as of 2005) applications for which CERF is used. Upgrade work started in 2015 to provide the scientific and industrial communities with a state-of-the-art reference facility is also discussed.

  1. A Reference Field for GCR Simulation and an LET-Based Implementation at NSRL

    Science.gov (United States)

    Slaba, Tony C.; Blattnig, Steve R.; Walker, Steven A.; Norbury, John W.

    2015-01-01

    Exposure to galactic cosmic rays (GCR) on long duration deep space missions presents a serious health risk to astronauts, with large uncertainties connected to the biological response. In order to reduce the uncertainties and gain understanding about the basic mechanisms through which space radiation initiates cancer and other endpoints, radiobiology experiments are performed. Some of the accelerator facilities supporting such experiments have matured to a point where simulating the broad range of particles and energies characteristic of the GCR environment in a single experiment is feasible from a technology, usage, and cost perspective. In this work, several aspects of simulating the GCR environment in the laboratory are discussed. First, comparisons are made between direct simulation of the external, free space GCR field and simulation of the induced tissue field behind shielding. It is found that upper energy constraints at the NASA Space Radiation Laboratory (NSRL) limit the ability to simulate the external, free space field directly (i.e. shielding placed in the beam line in front of a biological target and exposed to a free space spectrum). Second, variation in the induced tissue field associated with shielding configuration and solar activity is addressed. It is found that the observed variation is within physical uncertainties, allowing a single reference field for deep space missions to be defined. Third, an approach for simulating the reference field at NSRL is presented. The approach allows for the linear energy transfer (LET) spectrum of the reference field to be approximately represented with discrete ion and energy beams and implicitly maintains a reasonably accurate charge spectrum (or, average quality factor). Drawbacks of the proposed methodology are discussed and weighed against alternative simulation strategies. The neutron component and track structure characteristics of the proposed strategy are discussed in this context.

  2. Strategic research field no.4, industrial innovations

    International Nuclear Information System (INIS)

    Kato, Chisachi

    2011-01-01

    'Kei'-supercomputer is planned to start its full-scale operation in about one year and a half. With this, High Performance Computing (HPC) is most likely to contribute not only to further progress in basic and applied sciences, but also to bringing about innovations in various fields of industries. It is expected to substantially shorten design time, drastically improve performance and/or liability of various industrial products, and greatly enhance safety of large-scale power plants. In this particle, six research themes, which are currently being prepared in this strategic research field, 'industrial innovations' so as to use 'Kei'-supercomputer as soon as it starts operations, will be briefly described regarding their specific goals and break-through that they are expected to bring about in industries. It is also explained how we have determined these themes. We are also planning several measures in order to promote widespread use of HPC including 'Kei'-supercomputer in industries, which will also be elaborated in this article. (author)

  3. Women's mental health research: the emergence of a biomedical field.

    Science.gov (United States)

    Blehar, Mary C

    2006-01-01

    This review surveys the field of women's mental health, with particular emphasis on its evolution into a distinct area of biomedical research. The field employs a biomedical disease model but it also emphasizes social and cultural influences on health outcomes. In recent years, its scope has expanded beyond studies of disorders occurring in women at times of reproductive transitions and it now encompasses a broader study of sex and gender differences. Historical and conceptual influences on the field are discussed. The review also surveys gender differences in the prevalence and clinical manifestations of mental disorders. Epidemiological findings have provided a rich resource for theory development, but without research tools to test theories adequately, findings of gender differences have begged the question of their biological, social, and cultural origins. Clinical depression is used to exemplify the usefulness of a sex/gender perspective in understanding mental illness; and major theories proposed to account for gender differences are critically evaluated. The National Institutes of Health (NIH) is the primary federal funding source for biomedical women's mental health research. The review surveys areas of emphasis in women's mental health research at the NIH as well as some collaborative activities that represent efforts to translate research findings into the public health and services arenas. As new analytic methods become available, it is anticipated that a more fundamental understanding of the biological and behavioral mechanisms underlying sex and gender differences in mental illness will emerge. Nonetheless, it is also likely that integration of findings predicated on different conceptual models of the nature and causes of mental illness will remain a challenge. These issues are discussed with reference to their impact on the field of women's mental health research.

  4. Instrument intercomparison in the high-energy mixed field at the CERN-EU reference field (CERF) facility

    CERN Document Server

    Caresana, Marco; Manessi, Giacomo; Ott, Klaus; Scherpelz, Robert; Silari, Marco

    2014-01-01

    This paper discusses an intercomparison campaign performed in the mixed radiation field at the CERN-EU (CERF) reference field facility. Various instruments were employed: conventional and extended-range rem counters including a novel instrument called LUPIN, a bubble detector using an active counting system (ABC 1260) and two tissue-equivalent proportional counters (TEPCs). The results show that the extended range instruments agree well within their uncertainties and within 1σ with the H*(10) FLUKA value. The conventional rem counters are in good agreement within their uncertainties and underestimate H*(10) as measured by the extended range instruments and as predicted by FLUKA. The TEPCs slightly overestimate the FLUKA value but they are anyhow consistent with it when taking the comparatively large total uncertainties into account, and indicate that the non-neutron part of the stray field accounts for ∼30 % of the total H*(10).

  5. Compendium of selected references on air emissions; health, risk, and valuation research; and environmental externalities

    International Nuclear Information System (INIS)

    Szpunar, C.B.

    1992-07-01

    In preparing to develop a cost-benefit methodology that could be applied to potential projects abroad involving new coal-fired power plants that make use of US clean coal technologies, the author reviewed a wide variety of reference sources. These are listed in this publication. Before this review, the author had conducted a number of literature searches that identified source material in the newly rediscovered field of environmental externalities and related topics that might also be of value to other energy and environmental researchers. Those sources that appeared to be appropriate but that the author was unable to review are also listed in this document. Thus, this document serves as a comprehensive compendium of source material on these subjects, arranged alphabetically within categories

  6. Frontal eye fields involved in shifting frame of reference within working memory for scenes

    DEFF Research Database (Denmark)

    Wallentin, Mikkel; Roepstorff, Andreas; Burgess, Neil

    2008-01-01

    Working memory (WM) evoked by linguistic cues for allocentric spatial and egocentric spatial aspects of a visual scene was investigated by correlating fMRI BOLD signal (or "activation") with performance on a spatial-relations task. Subjects indicated the relative positions of a person or object...... (referenced by the personal pronouns "he/she/it") in a previously-shown image relative to either themselves (egocentric reference frame) or shifted to a reference frame anchored in another person or object in the image (allocentric reference frame), e.g. "Was he in front of you/her?" Good performers had both...... shorter response time and more correct responses than poor performers in both tasks. These behavioural variables were entered into a principal component analysis. The first component reflected generalised performance level. We found that the frontal eye fields (FEF), bilaterally, had a higher BOLD...

  7. Neutron Reference Benchmark Field Specifications: ACRR Polyethylene-Lead-Graphite (PLG) Bucket Environment (ACRR-PLG-CC-32-CL).

    Energy Technology Data Exchange (ETDEWEB)

    Vega, Richard Manuel [Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States); Parm, Edward J. [Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States); Griffin, Patrick J. [Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States); Vehar, David W. [Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)

    2015-07-01

    This report was put together to support the International Atomic Energy Agency (IAEA) REAL- 2016 activity to validate the dosimetry community’s ability to use a consistent set of activation data and to derive consistent spectral characterizations. The report captures details of integral measurements taken in the Annular Core Research Reactor (ACRR) central cavity with the Polyethylene-Lead-Graphite (PLG) bucket, reference neutron benchmark field. The field is described and an “a priori” calculated neutron spectrum is reported, based on MCNP6 calculations, and a subject matter expert (SME) based covariance matrix is given for this “a priori” spectrum. The results of 37 integral dosimetry measurements in the neutron field are reported.

  8. Different resistance patterns of reference and field strains of Brucella abortus

    Directory of Open Access Journals (Sweden)

    Karina L. Miranda

    2015-03-01

    Full Text Available The aim of this study was to evaluate the growth of the B. abortus reference strains and field isolates on media containing different inhibitor agents. Reference strains were seeded on tryptose agar containing: i-erythritol (1.0 mg/mL, fuchsin (20 μg/mL and 80 μg/mL, thionin (2.5 μg/mL and 10 μg/mL, rifampicin (200 μg/mL and safranin O (200 μg/mL. Field isolates were tested only on media containing i-erythritol, rifampicin and thionin. Furthermore, each suspension was also inoculated on tryptose agar incubated in air, to test its ability to grow without CO2. Sensitivity to fuchsin was similar among reference strains evaluated. Growth of S19, 544 and 2308 but not RB51 were inhibited on media containing rifampicin. Medium with safranin O showed no inhibition for RB51, 544 and 2308, but it partially inhibited the S19 growth as well as medium containing i-erythritol. Treatment/control growth ratio for 2308 on tryptose agar containing thionin (2.5 μg/mL was approximatelly 1.0, whereas S19 and RB51 showed 0.85 and 0.89 ratios, respectively. Growth of 544, S19 and RB51 but not 2308 was completely inhibited on medium with thionin (10 μg/mL. All field strains grew on medium containing i-erythritol, but were completelly inhibited by rifampicin. With exception of A1 (B. abortus biovar 3 all field isolates grew on medium with thionin, although some strains showed a treatment/control growth ratio of 0.75–0.80 (10 μg/mL. These results showed that tryptose agar with thionin, i-erythritol or rifampicin could be useful for differentiating vaccine, challenge and field strains of B. abortus.

  9. Enhance the Value of a Research Paper: Choosing the Right References and Writing them Accurately.

    Science.gov (United States)

    Bavdekar, Sandeep B

    2016-03-01

    References help readers identify and locate sources used for justifying the need for conducting the research study, verify methods employed in the study and for discussing the interpretation of results and implications of the study. It is extremely essential that references are accurate and complete. This article provides suggestions regarding choosing references and writing reference list. References are a list of sources that are selected by authors to represent the best documents concerning the research study.1 They constitute the foundation of any research paper. Although generally written towards the end of the article-writing process, they are nevertheless extremely important. They provide the context for the hypothesis and help justify the need for conducting the research study. Authors use references to inform readers about the techniques used for conducting the study and convince them about the appropriateness of methodology used. References help provide appropriate perspective in which the research findings should be seen and interpreted. This communication will discuss the purpose of citations, how to select quality sources for citing and the importance of accuracy while writing the reference list. © Journal of the Association of Physicians of India 2011.

  10. Cultural adaptation in translational research: field experiences.

    Science.gov (United States)

    Dévieux, Jessy G; Malow, Robert M; Rosenberg, Rhonda; Jean-Gilles, Michèle; Samuels, Deanne; Ergon-Pérez, Emma; Jacobs, Robin

    2005-06-01

    The increase in the incidence of HIV/AIDS among minorities in the United States and in certain developing nations has prompted new intervention priorities, stressing the adaptation of efficacious interventions for diverse and marginalized groups. The experiences of Florida International University's AIDS Prevention Program in translating HIV primary and secondary prevention interventions among these multicultural populations provide insight into the process of cultural adaptations and address the new scientific emphasis on ecological validity. An iterative process involving forward and backward translation, a cultural linguistic committee, focus group discussions, documentation of project procedures, and consultations with other researchers in the field was used to modify interventions. This article presents strategies used to ensure fidelity in implementing the efficacious core components of evidence-based interventions for reducing HIV transmission and drug use behaviors and the challenges posed by making cultural adaptation for participants with low literacy. This experience demonstrates the importance of integrating culturally relevant material in the translation process with intense focus on language and nuance. The process must ensure that the level of intervention is appropriate for the educational level of participants. Furthermore, the rights of participants must be protected during consenting procedures by instituting policies that recognize the socioeconomic, educational, and systemic pressures to participate in research.

  11. High Field Linear Magnetoresistance Sensors with Perpendicular Anisotropy L10-FePt Reference Layer

    Directory of Open Access Journals (Sweden)

    X. Liu

    2016-01-01

    Full Text Available High field linear magnetoresistance is an important feature for magnetic sensors applied in magnetic levitating train and high field positioning measurements. Here, we investigate linear magnetoresistance in Pt/FePt/ZnO/Fe/Pt multilayer magnetic sensor, where FePt and Fe ferromagnetic layers exhibit out-of-plane and in-plane magnetic anisotropy, respectively. Perpendicular anisotropy L10-FePt reference layer with large coercivity and high squareness ratio was obtained by in situ substrate heating. Linear magnetoresistance is observed in this sensor in a large range between +5 kOe and −5 kOe with the current parallel to the film plane. This L10-FePt based sensor is significant for the expansion of linear range and the simplification of preparation for future high field magnetic sensors.

  12. Strategies to evaluate goodness of reference strips for in-season, field scale, irrigated corn nitrogen sufficiency

    Science.gov (United States)

    The nitrogen (N) sufficiency approach to assess plant N status for in-season N management requires a non-N-limiting reference to make N recommendations. Use of reference strips in fields with spatially variable soils and the impact this variability has within N enriched reference strips are not we...

  13. Reference dosimetry and small-field dosimetry in external beam radiotherapy: Results from a Danish intercomparison study

    DEFF Research Database (Denmark)

    Beierholm, Anders Ravnsborg; Behrens, Claus F.; Sibolt, Patrik

    methods was performed by DTU Nutech at six Danish clinics. The first part of the intercompa-rison regarded the consistency of reference dosimetry. Absorbed dose to water under reference conditions was measured using a Farmer ionization chamber, and was found to agree within 1 % with the daily dose checks......-specific correction factors for non-reference fields....

  14. Instrument intercomparison in the high-energy mixed field at the CERN-EU reference field (CERF) facility.

    Science.gov (United States)

    Caresana, Marco; Helmecke, Manuela; Kubancak, Jan; Manessi, Giacomo Paolo; Ott, Klaus; Scherpelz, Robert; Silari, Marco

    2014-10-01

    This paper discusses an intercomparison campaign performed in the mixed radiation field at the CERN-EU (CERF) reference field facility. Various instruments were employed: conventional and extended-range rem counters including a novel instrument called LUPIN, a bubble detector using an active counting system (ABC 1260) and two tissue-equivalent proportional counters (TEPCs). The results show that the extended range instruments agree well within their uncertainties and within 1σ with the H*(10) FLUKA value. The conventional rem counters are in good agreement within their uncertainties and underestimate H*(10) as measured by the extended range instruments and as predicted by FLUKA. The TEPCs slightly overestimate the FLUKA value but they are anyhow consistent with it when taking the comparatively large total uncertainties into account, and indicate that the non-neutron part of the stray field accounts for ∼30 % of the total H*(10). © The Author 2013. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

  15. Research Protocol: Collections Related to Synthetic Turf Fields with Crumb Rubber Infill

    Science.gov (United States)

    The “Federal Research Action Plan on Recycled Tire Crumb Used on Playing Fields and Playgrounds” (referred to subsequently as the Federal Research Action Plan or FRAP) was finalized in February 2016. The U.S. EPA and CDC/ATSDR, in collaboration with CPSC, have prepare...

  16. Standardization of reference radiation field of beta for 85Kr using extrapolation chamber

    International Nuclear Information System (INIS)

    Nazaroh; Fendinugroho

    2013-01-01

    Standardization of reference radiation field of beta for 85 Kr in PTKMR-BATAN Laboratory has been performed at the SDD's 30 cm by using extrapolation chamber detector, coupled with Uni dose electrometer. The result was : (8.98±3 %) mGy/h, at 95 % confidence level. The aim of standardization of reference radiation field is to support radiation protection and safety program, provided by the International Atomic Energy Agency to its Member States, included BATAN-Indonesia, especially, PTKMR. The aim of radiation protection program and safety program is to promote an internationally harmonized approach for radiation measurement in protection level, besides for calibration of radiation measuring instrument, which users spread across Indonesia, with the number of about 795 firms in the year of 2012. These benefits can be felt by workers, communities and the environment, because by calibration, measurement survey meter, pocket dosimeter and TLD to be more accurate so that the radiation dose received by radiation workers is accurate and can be ascertained in a specified period, not to exceed a predetermined NBD by BAPETEN. The aim of this calibration is appropriate with the primary objective of calibration on IAEA/TRS16:2000. (author)

  17. Updating Photonuclear Data Library and Generating a Reference Database for Photon Strength Functions. 1st Research Coordination Meeting. Summary Report

    International Nuclear Information System (INIS)

    Goriely, S.; Dimitriou, P.

    2016-07-01

    A summary is given of the 1 st Research Coordination Meeting of the new IAEA Co-ordinated Research Project (CRP) on Updating the Photonuclear Data Library and Generating a Reference Database for Photon Strength Functions. Participants presented their work, reviewed the current status of the field with regards to measurements, theoretical models and evaluations, discussed the scope of the work to be undertaken and agreed on a list of priorities and task assignments necessary to achieve the goals of the CRP. A summary of the presentations and discussions is presented in this report. (author)

  18. 75 FR 9894 - Office of Research and Development; Ambient Air Monitoring Reference and Equivalent Methods...

    Science.gov (United States)

    2010-03-04

    ..., Research Triangle Park, North Carolina 27711. Designation of this new equivalent method is intended to... ENVIRONMENTAL PROTECTION AGENCY [FRL-9121-6] Office of Research and Development; Ambient Air Monitoring Reference and Equivalent Methods: Designation of One New Equivalent Method AGENCY: Environmental...

  19. 76 FR 15974 - Office of Research and Development; Ambient Air Monitoring Reference and Equivalent Methods...

    Science.gov (United States)

    2011-03-22

    ..., Research Triangle Park, North Carolina 27711. Designation of these new equivalent methods is intended to... ENVIRONMENTAL PROTECTION AGENCY [FRL-9285-2] Office of Research and Development; Ambient Air Monitoring Reference and Equivalent Methods: Designation of Four New Equivalent Methods AGENCY: Environmental...

  20. 75 FR 51039 - Office of Research and Development; Ambient Air Monitoring Reference and Equivalent Methods...

    Science.gov (United States)

    2010-08-18

    ..., Research Triangle Park, North Carolina 27711. Designation of these new equivalent methods is intended to... ENVIRONMENTAL PROTECTION AGENCY [FRL-9190-5] Office of Research and Development; Ambient Air Monitoring Reference and Equivalent Methods: Designation of Two New Equivalent Methods AGENCY: Environmental...

  1. Experimental research of the effects of different shields on power frequency electric field mitigation

    Directory of Open Access Journals (Sweden)

    Nahman Jovan

    2012-01-01

    Full Text Available The paper describes experimental research on the effects of different shields on power frequency electric field mitigation. This research was performed in order to determine those materials that may be used for electric field mitigation in cases where the reference level is exceeded. Using measured results, the value of the shielding factor has been calculated for all tested shields and the most efficient shields were determined.

  2. DOE research and development and field facilities

    Energy Technology Data Exchange (ETDEWEB)

    1979-06-01

    This report describes the roles of DOE's headquarters, field offices, major multiprogram laboratories, Energy Technology and Mining Operations Centers, and other government-owned, contractor-operated facilities which are located in all regions of the United States. It gives brief descriptions of resources, activities, and capabilities of each field facility (sections III through V). These represent a cumulative capital investment of $12 billion and involve a work force of approximately 12,000 government (field) employees and approximately 100,000 contractor employees.

  3. Thermal radiation transfer calculations in combustion fields using the SLW model coupled with a modified reference approach

    Science.gov (United States)

    Darbandi, Masoud; Abrar, Bagher

    2018-01-01

    The spectral-line weighted-sum-of-gray-gases (SLW) model is considered as a modern global model, which can be used in predicting the thermal radiation heat transfer within the combustion fields. The past SLW model users have mostly employed the reference approach to calculate the local values of gray gases' absorption coefficient. This classical reference approach assumes that the absorption spectra of gases at different thermodynamic conditions are scalable with the absorption spectrum of gas at a reference thermodynamic state in the domain. However, this assumption cannot be reasonable in combustion fields, where the gas temperature is very different from the reference temperature. Consequently, the results of SLW model incorporated with the classical reference approach, say the classical SLW method, are highly sensitive to the reference temperature magnitude in non-isothermal combustion fields. To lessen this sensitivity, the current work combines the SLW model with a modified reference approach, which is a particular one among the eight possible reference approach forms reported recently by Solovjov, et al. [DOI: 10.1016/j.jqsrt.2017.01.034, 2017]. The combination is called "modified SLW method". This work shows that the modified reference approach can provide more accurate total emissivity calculation than the classical reference approach if it is coupled with the SLW method. This would be particularly helpful for more accurate calculation of radiation transfer in highly non-isothermal combustion fields. To approve this, we use both the classical and modified SLW methods and calculate the radiation transfer in such fields. It is shown that the modified SLW method can almost eliminate the sensitivity of achieved results to the chosen reference temperature in treating highly non-isothermal combustion fields.

  4. Computational Model Prediction and Biological Validation Using Simplified Mixed Field Exposures for the Development of a GCR Reference Field

    Science.gov (United States)

    Hada, M.; Rhone, J.; Beitman, A.; Saganti, P.; Plante, I.; Ponomarev, A.; Slaba, T.; Patel, Z.

    2018-01-01

    The yield of chromosomal aberrations has been shown to increase in the lymphocytes of astronauts after long-duration missions of several months in space. Chromosome exchanges, especially translocations, are positively correlated with many cancers and are therefore a potential biomarker of cancer risk associated with radiation exposure. Although extensive studies have been carried out on the induction of chromosomal aberrations by low- and high-LET radiation in human lymphocytes, fibroblasts, and epithelial cells exposed in vitro, there is a lack of data on chromosome aberrations induced by low dose-rate chronic exposure and mixed field beams such as those expected in space. Chromosome aberration studies at NSRL will provide the biological validation needed to extend the computational models over a broader range of experimental conditions (more complicated mixed fields leading up to the galactic cosmic rays (GCR) simulator), helping to reduce uncertainties in radiation quality effects and dose-rate dependence in cancer risk models. These models can then be used to answer some of the open questions regarding requirements for a full GCR reference field, including particle type and number, energy, dose rate, and delivery order. In this study, we designed a simplified mixed field beam with a combination of proton, helium, oxygen, and iron ions with shielding or proton, helium, oxygen, and titanium without shielding. Human fibroblasts cells were irradiated with these mixed field beam as well as each single beam with acute and chronic dose rate, and chromosome aberrations (CA) were measured with 3-color fluorescent in situ hybridization (FISH) chromosome painting methods. Frequency and type of CA induced with acute dose rate and chronic dose rates with single and mixed field beam will be discussed. A computational chromosome and radiation-induced DNA damage model, BDSTRACKS (Biological Damage by Stochastic Tracks), was updated to simulate various types of CA induced by

  5. REFERENCE MATERIALS SYSTEM OF SCIENTIFIC METHODICAL CENTRE OF STATE SERVICE OF REFERENCE MATERIALS FOR COMPOSITION AND PROPERTIES OF SUBSTANCES AND MATERIALS URAL RESEARCH INSTITUTE FOR METROLOGY

    Directory of Open Access Journals (Sweden)

    E. V. Osinseva

    2015-01-01

    Full Text Available Since 1960s UNIIM performs research in the field of needs in reference materials of composition and properties of substances and materials (RM as well as develops it. During the research UNIIM has developed 757 types of RMs for metrological measurement assurance of factors of composition and properties of substance and materials for test laboratories of chemical, pharmaceutical, fuel, food industry, agriculture, metallurgy and ecological monitoring laboratories. List ofRMs enlarges thanks to development of UNIIM standards and transmission measurement facility from State standards of units. Taking into account the actual requirements in the field of measurements, the UNIIM's key destination is to assure the accuracy and the metrological traceability of measurements. The present-day system of RMs to be developed in UNIIM includes RMs of composition of inorganic and organic compounds and their solutions, fuels, stable isotopic materials, water, grounds, food products, biomaterials, nanomaterials, metals, alloys and other materials offerrous and non-ferrous industry, RMs of properties (thermodynamic, magnetic, physical-chemical, technical of substances and materials. The present article considers history of RMs list development which were created by UNIIM and the strategy of this direction.

  6. Basic Restriction and Reference Level in Anatomically-based Japanese Models for Low-Frequency Electric and Magnetic Field Exposures

    Science.gov (United States)

    Takano, Yukinori; Hirata, Akimasa; Fujiwara, Osamu

    Human exposed to electric and/or magnetic fields at low frequencies may cause direct effect such as nerve stimulation and excitation. Therefore, basic restriction is regulated in terms of induced current density in the ICNIRP guidelines and in-situ electric field in the IEEE standard. External electric or magnetic field which does not produce induced quantities exceeding the basic restriction is used as a reference level. The relationship between the basic restriction and reference level for low-frequency electric and magnetic fields has been investigated using European anatomic models, while limited for Japanese model, especially for electric field exposures. In addition, that relationship has not well been discussed. In the present study, we calculated the induced quantities in anatomic Japanese male and female models exposed to electric and magnetic fields at reference level. A quasi static finite-difference time-domain (FDTD) method was applied to analyze this problem. As a result, spatially averaged induced current density was found to be more sensitive to averaging algorithms than that of in-situ electric field. For electric and magnetic field exposure at the ICNIRP reference level, the maximum values of the induced current density for different averaging algorithm were smaller than the basic restriction for most cases. For exposures at the reference level in the IEEE standard, the maximum electric fields in the brain were larger than the basic restriction in the brain while smaller for the spinal cord and heart.

  7. Characterization of CERN-EU high energy reference radiation fields with recombination chamber

    International Nuclear Information System (INIS)

    Golnik, N.

    1998-01-01

    The CERN-EU reference radiation field facility (called CERFF) is available behind a shielding of high-energy particles beam at CERN since 1993. At present the parameters of the radiation from beam target are well investigated, however, there are still some serious doubts concerning contribution of low-LET concurrent radiation. This paper presents an experimental procedure for determination of the contribution from the concurrent radiation by measuring the absorbed dose and recombination index of radiation quality at different beam intensities. Additionally, the values of H * (10) were measured in several measuring locations. Measurements were performed with a REM-2 recombination chamber and compared with those obtained by using a HANDI-TEPC instrument. (author)

  8. Measurements of H*(10) in reference neutron fields using Bonner sphere spectrometry and LET spectrometry

    CERN Document Server

    Golnik, N; Králik, M

    2002-01-01

    A Bonner sphere spectrometer and the REM-2 recombination chamber were used for inter-comparison measurements of the neutron component of ambient dose equivalent, H sub n *(10) in reference neutron fields. The sup 2 sup 4 sup 1 Am-Be and sup 2 sup 5 sup 2 Cf neutron sources were exposed either free-in-air or placed in iron or paraffin filters. The REM-2 recombination chamber was used as a LET spectrometer. The agreement of H sub n *(10) values measured with both the methods was within experimental uncertainties of few percent. The determined neutron spectra were used for calculations of the REM-2 chamber response to H*(10).

  9. The ASTARTE Paleotsunami Deposits data base - a web-based reference for tsunami research around Europe

    Science.gov (United States)

    De Martini, Paolo Marco; Orefice, Simone; Patera, Antonio; Paris, Raphael; Terrinha, Pedro; Noiva, Joao; Hunt, James; Pantosti, Daniela

    2016-04-01

    EU project ASTARTE aims at developing a higher level of tsunami hazard assessment in the North East Atlantic and Mediterranean (NEAM) region by a combination of field work, experimental work, numerical modeling and technical development. The project is a cooperative work of 26 institutes from 16 countries and links together the description of past tsunamigenic events, the characterization of tsunami sources, the calculation of the impact of such events, and the development of adequate resilience strategies (www.astarte.eu). Within ASTARTE a web-based data base on Paleotsunami Deposits in the NEAM areas is being created that will be the future reference source for this kind of research in Europe. The aim is to integrate every existing scientific reference on the topic and update on new entries every six months, hosting information and detailed data that are crucial, e.g for tsunami modeling. At present 127 sites with evidence for at least one paleotsunami deposit have been collected. A relational database managed by ArcGIS for Desktop 10.3 software has been implemented to allow all partners to collaborate through a common platform for archiving and exchanging data and interpretations, such as paleotsunami type of evidence (sediment, blocks, geomorphological signature, etc), geometric characteristics (thickness, depth, etc), but also age and dating method and type of analysis supporting the tsunami interpretation. Moreover, information on the type of the site (natural or artificial exposure, exploratory trench, hand or engine core, etc), on its geomorphic setting (coastal lake, marsh, fluvial plain, offshore, etc) and on its elevation and distance from the present shoreline are provided. One of the final goals of the project is the public sharing of the archived datasets through a web-based map service that will allow to visualize, question, analyze, and interpret all datasets. The interactive map service will be hosted by ArcGIS Online and will deploy the cloud

  10. Risk - a new field of research?

    International Nuclear Information System (INIS)

    Bechmann, G.

    1993-01-01

    Risk research is a research activity that hitherto has failed to come up with a standard concept of risk, or theory of risk. The contribution explains three major approaches and basic orientations, which represent a formal and law-oriented approach, a psychological and cognitive approach, and the approach starting from cultural and sociological aspects. (DG) [de

  11. Field Systems Research: Sport Pedagogy Perspectives.

    Science.gov (United States)

    Locke, Lawrence F.; And Others

    1992-01-01

    These articles contain responses from several scholars on the issue of field systems analysis (FSA). The scholars offer critiques from their sport pedagogy perspectives, a reaction relating FSA to personal examinations of teaching expertise, and a discussion of how computer simulation informs the study of expert teachers. (SM)

  12. Research in the field of narratology

    Directory of Open Access Journals (Sweden)

    Aleksić Slađana M.

    2013-01-01

    Full Text Available A new theoretical discipline, narratology, deals with the problems of organizing text at a narrative level. The beginnings of narratology are related to the eighth issue of the journal "Communication" (1966, devoted to research stories. Mieke Bal wrote the first book that contains the word "Narratology" in its title (1979. The beginnings of narratological research can be found in Aristotle's Poetics, where he dealt with the problem of organizing the narration of a text with the action and the characters, and with the qualification of the elements of narrative text. The paper highlights the ontology of contemporary narratological landscape through semiotic research.

  13. Geant4 simulation of the CERN-EU high-energy reference field (CERF) facility.

    Science.gov (United States)

    Prokopovich, D A; Reinhard, M I; Cornelius, I M; Rosenfeld, A B

    2010-09-01

    The CERN-EU high-energy reference field facility is used for testing and calibrating both active and passive radiation dosemeters for radiation protection applications in space and aviation. Through a combination of a primary particle beam, target and a suitable designed shielding configuration, the facility is able to reproduce the neutron component of the high altitude radiation field relevant to the jet aviation industry. Simulations of the facility using the GEANT4 (GEometry ANd Tracking) toolkit provide an improved understanding of the neutron particle fluence as well as the particle fluence of other radiation components present. The secondary particle fluence as a function of the primary particle fluence incident on the target and the associated dose equivalent rates were determined at the 20 designated irradiation positions available at the facility. Comparisons of the simulated results with previously published simulations obtained using the FLUKA Monte Carlo code, as well as with experimental results of the neutron fluence obtained with a Bonner sphere spectrometer, are made.

  14. Understanding Suicidal Behaviour in Young People Referred to Specialist CAMHS: A Qualitative Psychoanalytic Clinical Research Project

    Science.gov (United States)

    Anderson, Jan; Hurst, Margaret; Marques, Ana; Millar, David; Moya, Sue; Pover, Lesley; Stewart, Sue

    2012-01-01

    A qualitative psychoanalytic clinical research project using a post-Kleinian contemporary approach was undertaken by a team of seven qualified and experienced child psychotherapists working in community Tier 3 Child and Adolescent Mental Health Services (CAMHS). A number of referred young people who deliberately harmed themselves or attempted…

  15. 75 FR 22126 - Office of Research and Development; Ambient Air Monitoring Reference and Equivalent Methods...

    Science.gov (United States)

    2010-04-27

    ... ENVIRONMENTAL PROTECTION AGENCY [FRL-9142-1] Office of Research and Development; Ambient Air Monitoring Reference and Equivalent Methods: Designation of One New Equivalent Method AGENCY: Environmental Protection Agency. ACTION: Notice of the designation of one new equivalent method for monitoring ambient air...

  16. 76 FR 62402 - Office of Research and Development; Ambient Air Monitoring Reference and Equivalent Methods...

    Science.gov (United States)

    2011-10-07

    ... ENVIRONMENTAL PROTECTION AGENCY [FRL-9476-7] Office of Research and Development; Ambient Air Monitoring Reference and Equivalent Methods; Designation of One New Equivalent Method AGENCY: Environmental Protection Agency. ACTION: Notice of the designation of one new equivalent method for monitoring ambient air...

  17. 75 FR 30022 - Office of Research and Development; Ambient Air Monitoring Reference and Equivalent Methods...

    Science.gov (United States)

    2010-05-28

    ... ENVIRONMENTAL PROTECTION AGENCY [FRL-9156-1] Office of Research and Development; Ambient Air Monitoring Reference and Equivalent Methods: Designation of One New Equivalent Method AGENCY: Environmental Protection Agency. ACTION: Notice of the designation of one new equivalent method for monitoring ambient air...

  18. Gravity field recovery in the framework of a Geodesy and Time Reference in Space (GETRIS)

    Science.gov (United States)

    Hauk, Markus; Schlicht, Anja; Pail, Roland; Murböck, Michael

    2017-04-01

    The study ;Geodesy and Time Reference in Space; (GETRIS), funded by European Space Agency (ESA), evaluates the potential and opportunities coming along with a global space-borne infrastructure for data transfer, clock synchronization and ranging. Gravity field recovery could be one of the first beneficiary applications of such an infrastructure. This paper analyzes and evaluates the two-way high-low satellite-to-satellite-tracking as a novel method and as a long-term perspective for the determination of the Earth's gravitational field, using it as a synergy of one-way high-low combined with low-low satellite-to-satellite-tracking, in order to generate adequate de-aliasing products. First planned as a constellation of geostationary satellites, it turned out, that an integration of European Union Global Navigation Satellite System (Galileo) satellites (equipped with inter-Galileo links) into a Geostationary Earth Orbit (GEO) constellation would extend the capability of such a mission constellation remarkably. We report about simulations of different Galileo and Low Earth Orbiter (LEO) satellite constellations, computed using time variable geophysical background models, to determine temporal changes in the Earth's gravitational field. Our work aims at an error analysis of this new satellite/instrument scenario by investigating the impact of different error sources. Compared to a low-low satellite-to-satellite-tracking mission, results show reduced temporal aliasing errors due to a more isotropic error behavior caused by an improved observation geometry, predominantly in near-radial direction within the inter-satellite-links, as well as the potential of an improved gravity recovery with higher spatial and temporal resolution. The major error contributors of temporal gravity retrieval are aliasing errors due to undersampling of high frequency signals (mainly atmosphere, ocean and ocean tides). In this context, we investigate adequate methods to reduce these errors. We

  19. Design research through practice : from the lab, field, and showroom

    NARCIS (Netherlands)

    Koskinen, I.; Zimmerman, J.; Binder, T.; Redström, J.; Wensveen, S.A.G.

    2011-01-01

    Businesses and the HCI and Interaction Design communities have embraced design and design research. Design research as a field blends methodologies from several disciplines - sociology, engineering, software, philosophy, industrial design, HCI/interaction design -- so designers can learn from past

  20. Conducting Field Research on Terrorism: a Brief Primer

    Directory of Open Access Journals (Sweden)

    Adam Dolnik

    2011-05-01

    Full Text Available This article focuses on the practical aspects of field research on terrorism. Firstly, it  outlines some issues involved in the process of attaining a human research ethics/institutional review board clearance in order to be able to even begin the field research. It suggests some ways in which researchers can positively influence this review process in their favor. Secondly, the article focuses on the real and perceived dangers of field research, identifying practical steps and preparatory activities that can help researchers manage and reduce the risks involved. The article also covers the formalities and dilemmas involved in gaining access to the field. It then provides some insights into the topic of operating in conflict zones, followed by a section covering the ways of gaining access to sources, effective communication skills and influence techniques and addresses key issues involved in interviewing sources in the field. The final section focuses on identifying biases and interfering factors which researchers need to take into account when interpreting the data acquired through interviews. This article is a modest attempt to fill a gap in the literature on terrorism research by outlining some of the key issues involved in the process of doing field research. It incorporates insights from diverse disciplines as well as the author’s personal experiences of conducting field research on terrorism in places like Afghanistan, Pakistan, Chechnya, Ingushetia, Colombia, Mindanao, Uganda, Indonesia, Democratic Republic of Congo, Sudan, and India.

  1. Reference Management Practices of Postgraduate Students and Academic Researchers are Highly Individualized

    Directory of Open Access Journals (Sweden)

    Kimberly Miller

    2016-09-01

    Full Text Available A Review of: Melles, A., & Unsworth, K. (2015. Examining the reference management practices of humanities and social science postgraduate students and academics. Australian Academic & Research Libraries, 46(4, 250-276. http://dx.doi.org/10.1080/00048623.2015.1104790 Objective – To understand patterns in reference management practices of postgraduate students and faculty members at one institution. Design – Mixed methods online survey and semi-structured interviews. Setting – Public research university in Australia. Subjects – The survey included responses from 81 postgraduate students. Semi-structured interviews were conducted with 8 postgraduate students and 13 faculty members. Methods – The researchers distributed an 18-item survey via email to approximately 800 people who previously registered for EndNote training sessions. Survey participants were also recruited via a website advertisement. The researchers recruited postgraduate student interview participants from the list of survey respondents. Librarians invited faculty members to participate in the semi-structured interviews. Interview audio recordings were transcribed and coded for data analysis. Main Results – The survey found that 71.4% (n=55 of respondents used reference management software (RMS and 29% (n=22 did not. Over half of the students who did not use an RMS described other ad hoc or “manual” (p. 255 methods for organizing and tracking references. The majority of participants reported using EndNote (67.53%, n=52, while few respondents reported using other RMS tools like Zotero (1.3%, n=1 or Mendeley (1.3%, n = 1. Software awareness (49.32%, n=36, recommendations from faculty members (30.14%, n=22, and University support (47.95%, n=35 were the primary motivations for choosing a specific RMS. Other important factors included ease of use (32.88%, n=24 and integration with Microsoft Word (46.58%, n=34. Students preferred RMS features that support the process of

  2. Interdisciplinarity of Nano Research Fields : A Keyword Mining Approach

    NARCIS (Netherlands)

    Wang, L.; Notten, A.; Surpatean, A.

    2012-01-01

    Using a keyword mining approach, this paper explores the interdisciplinary and integrative dynamics in five nano research fields. We argue that the general trend of integration in nano research fields is converging in the long run, although the degree of this convergence depends greatly on the

  3. Reference equilibrium core with central flux irradiation facility for Pakistan research reactor-1

    International Nuclear Information System (INIS)

    Israr, M.; Shami, Qamar-ud-din; Pervez, S.

    1997-11-01

    In order to assess various core parameters a reference equilibrium core with Low Enriched Uranium (LEU) fuel for Pakistan Research Reactor (PARR-1) was assembled. Due to increased volume of reference core, the average neutron flux reduced as compared to the first higher power operation. To get a higher neutron flux an irradiation facility was created in centre of the reference equilibrium core where the advantage of the neutron flux peaking was taken. Various low power experiments were performed in order to evaluate control rods worth and neutron flux mapping inside the core. The neutron flux inside the central irradiation facility almost doubled. With this arrangement reactor operation time was cut down from 72 hours to 48 hours for the production of the required specific radioactivity. (author)

  4. Full-reference quality assessment of stereoscopic images by learning binocular receptive field properties.

    Science.gov (United States)

    Shao, Feng; Li, Kemeng; Lin, Weisi; Jiang, Gangyi; Yu, Mei; Dai, Qionghai

    2015-10-01

    Quality assessment of 3D images encounters more challenges than its 2D counterparts. Directly applying 2D image quality metrics is not the solution. In this paper, we propose a new full-reference quality assessment for stereoscopic images by learning binocular receptive field properties to be more in line with human visual perception. To be more specific, in the training phase, we learn a multiscale dictionary from the training database, so that the latent structure of images can be represented as a set of basis vectors. In the quality estimation phase, we compute sparse feature similarity index based on the estimated sparse coefficient vectors by considering their phase difference and amplitude difference, and compute global luminance similarity index by considering luminance changes. The final quality score is obtained by incorporating binocular combination based on sparse energy and sparse complexity. Experimental results on five public 3D image quality assessment databases demonstrate that in comparison with the most related existing methods, the devised algorithm achieves high consistency with subjective assessment.

  5. Reference and standard benchmark field consensus fission yields for U.S. reactor dosimetry programs

    International Nuclear Information System (INIS)

    Gilliam, D.M.; Helmer, R.G.; Greenwood, R.C.; Rogers, J.W.; Heinrich, R.R.; Popek, R.J.; Kellogg, L.S.; Lippincott, E.P.; Hansen, G.E.; Zimmer, W.H.

    1977-01-01

    Measured fission product yields are reported for three benchmark neutron fields--the BIG-10 fast critical assembly at Los Alamos, the CFRMF fast neutron cavity at INEL, and the thermal column of the NBS Research Reactor. These measurements were carried out by participants in the Interlaboratory LMFBR Reaction Rates (ILRR) program. Fission product generation rates were determined by post-irradiation analysis of gamma-ray emission from fission activation foils. The gamma counting was performed by Ge(Li) spectrometry at INEL, ANL, and HEDL; the sample sent to INEL was also analyzed by NaI(Tl) spectrometry for Ba-140 content. The fission rates were determined by means of the NBS Double Fission Ionization Chamber using thin deposits of each of the fissionable isotopes. Four fissionable isotopes were included in the fast neutron field measurements; these were U-235, U-238, Pu-239, and Np-237. Only U-235 was included in the thermal neutron yield measurements. For the fast neutron fields, consensus yields were determined for three fission product isotopes--Zr-95, Ru-103, and Ba-140. For these fission product isotopes, a separately activated foil was analyzed by each of the three gamma counting laboratories. The experimental standard deviation of the three independent results was typically +- 1.5%. For the thermal neutron field, a consensus value for the Cs-137 yield was also obtained. Subsidiary fission yields are also reported for other isotopes which were studied less intensively (usually by only one of the participating laboratories). Comparisons with EBR-II fast reactor yields from destructive analysis and with ENDF/B recommended values are given

  6. THE CURRENT STATE OF KNOWLEDGE IN THE VALUE RELEVANCE RESEARCH FIELD

    Directory of Open Access Journals (Sweden)

    Carmen- Alexandra BALTARIU

    2015-04-01

    Full Text Available The purpose of this paper is to assess the scientific literature referring to the value relevance of reported accounting information over a twelve year period starting from 2002. The approach of the paper is a theoretical (conceptual one. In order to complete the purpose of the paper we selected as research method the longitudinal qualitative analysis. The qualitative analysis carried out presents a deductive character. Our conclusions regarding the general characteristics of the research field pertaining to the value relevance of reported accounting information are drawn based on the main results and scientific contributions identified in the research field of interest.

  7. Research in the fields of medicine in Slovenia – research potential, funding, and publications

    Directory of Open Access Journals (Sweden)

    Stojan Pečlin

    2012-09-01

    Conclusions: The size of the human research potential in the fields of medicine in Slovenia is modest. The majority of researchers are also engaged in medical practice and education. Consequently, funds from public sources for research per researcher are low. Research fields of medicine primarly require an increase in human research resources, which can then provide a basis for a rise in funding and the impact of its research results becoming comparable to the EU and world averages.

  8. Health-related biological effects of electric, magnetic, and electro-magnetic fields with special reference to nonthermal effects

    International Nuclear Information System (INIS)

    Stevenson, A.F.G.

    1993-02-01

    This expert report is a supplement to the report by L. von Klitzing (The actions and effects of electric, magnetic, and electro-magnetic fields in man with special reference to athermal effects) and concerns in particular the biological effects on cationic homeostasis and cell regulation with special reference to calcium and the effects on the pineal gland. The report concludes with statements on teratogenicity, concerogenicity, mutagenicity and a bibliography of literature. (VHE) [de

  9. Third research coordination meeting on reference database for neutron activation analysis. Summary report

    International Nuclear Information System (INIS)

    Kellett, M.A.

    2009-12-01

    The third meeting of the Co-ordinated Research Project on 'Reference Database for Neutron Activation Analysis' was held at the IAEA, Vienna from 17-19 November 2008. A summary of presentations made by participants is given, reports on specific tasks and subsequent discussions. With the aim of finalising the work of this CRP and in order to meet initial objectives, outputs were discussed and detailed task assignments agreed upon. (author)

  10. French research in the field of nuclear agronomy

    International Nuclear Information System (INIS)

    Guerin De Montgareuil, P.

    1964-01-01

    This report presents a survey of the most important work in the field of nuclear agronomy carried out in France since the second international conference, ranging from pure research to the most direct application. As the programmes develop, so to an ever decreasing degree does this differentiation cover the distinction made in the report between the biological radiations effects and the other uses of nuclear techniques. Thus research on agricultural radio-genetics is carried on in two directions: from the theoretical and methodological angle, with comparative studies of the action of various types of radiation, the influence of dose rate and temperature, the action of chemical mutation agents, the production of chimera by gamma irradiation; and on the practical side, leading to the creation of new, hardier or earlier varieties (rice, millet, ground-nuts). Problems of pest destruction (eradication) and the preservation of foodstuffs by irradiation are also tackled by widely varied means and for totally different purposes. One operation consisting of a simple irradiation (moist seeds, potatoes...) will sometimes be associated with original studies of a biochemical or microbiological nature (for example: decomposition of starch, glucide metabolism of irradiated tubers, radiation resistance of yeasts). The nuclear technique side is represented mainly by radioisotopes (carbon 14, phosphorus 32, sulphur 35, calcium 45, potassium 42, copper 64, gold 198) and stable isotopes analysed by mass spectrometer (nitrogen 15, oxygen 18) or by neutron activation (boron 10). The studies mentioned refer to problems on different levels concerning plant physiology, agrology, agricultural entomology and zootechny. Results obtained from measurements of the humidity (neutron thermalization) and density (gamma diffusion) of a soil are also given. Numerous organisations take part in these various research programmes, each according to its speciality: cooperative private enterprise

  11. Research collaboration in groups and networks: differences across academic fields.

    Science.gov (United States)

    Kyvik, Svein; Reymert, Ingvild

    2017-01-01

    The purpose of this paper is to give a macro-picture of collaboration in research groups and networks across all academic fields in Norwegian research universities, and to examine the relative importance of membership in groups and networks for individual publication output. To our knowledge, this is a new approach, which may provide valuable information on collaborative patterns in a particular national system, but of clear relevance to other national university systems. At the system level, conducting research in groups and networks are equally important, but there are large differences between academic fields. The research group is clearly most important in the field of medicine and health, while undertaking research in an international network is most important in the natural sciences. Membership in a research group and active participation in international networks are likely to enhance publication productivity and the quality of research.

  12. A Comprehensive Literature Review of the ERP research field

    DEFF Research Database (Denmark)

    Kræmmergaard, Pernille; Schlichter, Bjarne Rerup

    During the past decade ERP has attracted attention from both academic and industrial communities (Shehab, Sharp et al. 2004) and we feel that now is an opportune time for the ERP field to ask how the field has evolved and what its present state is (Chen and Hirschheim 2004). The purpose...... of this paper is to address these questions, which is done by providing an overview of the Enterprise Resource Planning (ERP) research field regardless of research discipline, research topic and research traditions. Abstracts from 723 peer-reviewed journal publications from 2000 up till 2007 have been analyzed...... according to journal, authors and year of publication, and further categorized into research discipline, research topic and methods used. The paper demonstrates that the body of academic knowledge about ERP systems has reached a certain level of maturity and several different research disciplines have...

  13. A Comprehensive Literature Review of the ERP research field

    DEFF Research Database (Denmark)

    Kræmmergaard, Pernille; Schlichter, Bjarne Rerup

    be used in future studies about how research fields with interest in an empirical phenomenon, e.g. CRM and ITIL, evolve and as a guide for researchers providing them with insight into what has been published, where to publish ERP-related research and how to study it. Contribution of figures and numbers...

  14. Approved reference and testing materials for use in Nuclear Waste Management Research and Development Programs

    International Nuclear Information System (INIS)

    Mellinger, G.B.; Daniel, J.L.

    1984-12-01

    This document, addressed to members of the waste management research and development community summarizes reference and testing materials available from the Nuclear Waste Materials Characterization Center (MCC). These materials are furnished under the MCC's charter to distribute reference materials essential for quantitative evaluation of nuclear waste package materials under development in the US. Reference materials with known behavior in various standard waste management related tests are needed to ensure that individual testing programs are correctly performing those tests. Approved testing materials are provided to assist the projects in assembling materials data base of defensible accuracy and precision. This is the second issue of this publication. Eight new Approved Testing Materials are listed, and Spent Fuel is included as a separate section of Standard Materials because of its increasing importance as a potential repository storage form. A summary of current characterization information is provided for each material listed. Future issues will provide updates of the characterization status of the materials presented in this issue, and information about new standard materials as they are acquired. 7 references, 1 figure, 19 tables

  15. Physical Measurement Profile at Gilgel Gibe Field Research Center ...

    African Journals Online (AJOL)

    Physical Measurement Profile at Gilgel Gibe Field Research Center, ... hip circumference in under 35 years and body mass index in under 45 year age groups were ... Comparison with findings in other parts of the world showed that Ethiopians ...

  16. Research note : field control of asphalt concrete paving mixtures.

    Science.gov (United States)

    1995-01-01

    The goal of this study was to develop information and evaluate new methods for controlling quality of the AC mixture in the mat. Specifically, this research project evaluated a gyratory compactor in the field laboratory to determine mix quality. Spec...

  17. Measuring methods, registration and signal processing for magnetic field research

    International Nuclear Information System (INIS)

    Nagiello, Z.

    1981-01-01

    Some measuring methods and signal processing systems based on analogue and digital technics, which have been applied in magnetic field research using magnetometers with ferromagnetic transducers, are presented. (author)

  18. Sociology of International Education--An Emerging Field of Research

    Science.gov (United States)

    Resnik, Julia

    2012-01-01

    This article points to international education in elementary and post-elementary schools as an emerging and promising field of enquiry. It describes the state of art of this new field and sets out the nature of the research. The rapid development of international networks in recent decades; the contribution of international education policies to…

  19. Biological field stations: research legacies and sites for serendipity

    Science.gov (United States)

    William K. Michener; Keith L. Bildstein; Arthur McKee; Robert R. Parmenter; William W. Hargrove; Deedra McClearn; Mark Stromberg

    2009-01-01

    Biological field stations are distributed throughout North America, capturing much of the ecological variability present at the continental scale and encompassing many unique habitats. In addition to their role in supporting research and education, field stations offer legacies of data, specimens, and accumulated knowledge. Such legacies often provide the only...

  20. Introducing Field-Based Geologic Research Using Soil Geomorphology

    Science.gov (United States)

    Eppes, Martha Cary

    2009-01-01

    A field-based study of soils and the factors that influence their development is a strong, broad introduction to geologic concepts and research. A course blueprint is detailed where students design and complete a semester-long field-based soil geomorphology project. Students are first taught basic soil concepts and to describe soil, sediment and…

  1. Recent progress in the research field of neuropharmacology in China.

    Science.gov (United States)

    Li, Jin

    2008-02-01

    In recent years, Chinese neuropharmacologists have done a lot of basic and practical work in neuropharmacology, especially in the fields of pain, drug dependence, depression, Alzheimer's disease, schizophrenia, having obtained some exciting results that are of great significance for the development of neuropharmacology. Here I would like to review recent progress in the research fields of neuropharmacology in China.

  2. The redesigned Forensic Research/Reference on Genetics-knowledge base, FROG-kb.

    Science.gov (United States)

    Kidd, Kenneth K; Soundararajan, Usha; Rajeevan, Haseena; Pakstis, Andrew J; Moore, Katherine N; Ropero-Miller, Jeri D

    2018-03-01

    The Forensic Resource/Reference on Genetics-knowledge base (FROG-kb) web site was introduced in 2011 and in the five years since the previous publication ongoing research into how the database can better serve forensics has resulted in extensive redesign of the database interface and functionality. Originally designed as a prototype to support forensic use of single nucleotide polymorphisms (SNPs), FROG-kb provides a freely accessible web interface that facilitates forensic practice and can be useful for teaching and research. Based on knowledge gained through its use, the web interface has been redesigned for easier navigation through the multiple components. The site also has functional enhancements, extensive new documentation, and new reference panels of SNPs with new curated data. FROG-kb focuses on single nucleotide polymorphisms (SNPs) and provides reference population data for several published panels of individual identification SNPs (IISNPs) and several published panels of ancestry inference SNPs (AISNPs). For each of the various marker panels with reference population data, FROG-kb calculates random match probabilities (RMP) and relative likelihoods of ancestry for a user-entered genotype profile (either completely or partially specified). Example genotype profiles are available and the User's Manual presents interpretation guidelines for the calculations. The extensive documentation along with ongoing updates makes FROG-kb a comprehensive tool in facilitating use of SNPs in forensic practice and education. An overview of the new FROG-kb with examples and material explaining the results of its use are presented here. Copyright © 2017 The Authors. Published by Elsevier B.V. All rights reserved.

  3. Field Research in Political Science Practices and Principles

    DEFF Research Database (Denmark)

    Gravier, Magali

    2017-01-01

    Book review of: Kapiszewski (Diana), Maclean (Lauren M.), Read (Benjamin L.) ­ Field Research in Political Science. Practices and Principles. ­ Cambridge, Cambridge University Press, 2015 (Strategies for Social Inquiry). XIV + 456 p. Figures. Annexe. Bibliogr. Index.......Book review of: Kapiszewski (Diana), Maclean (Lauren M.), Read (Benjamin L.) ­ Field Research in Political Science. Practices and Principles. ­ Cambridge, Cambridge University Press, 2015 (Strategies for Social Inquiry). XIV + 456 p. Figures. Annexe. Bibliogr. Index....

  4. [How to improve the visibility of Spanish research in nursing? Reference journals and quality indexes].

    Science.gov (United States)

    Lima-Serrano, Marta; Lima-Rodríguez, Joaquín S; Porcel-Gálvez, Ana M; Gil-García, Eugenia

    2015-01-01

    Research ends when the results are shared in the academic and professional community, and for this reason they need to be published in scientific journals of reference. But the question is where should the results of nursing research be published? Taking into account the expanding context and scientific consolidation of the discipline. To answer this question, an analysis will be made of the benefits and the most common criticisms of the two most important multidisciplinary literature data bases, as well as examining the context of the Spanish nursing journals in these data bases. A description will also be made of the indexing systems, as well as making proposals to contribute to improved visibility of Spanish nursing research through the positioning of its journals. Copyright © 2014 Elsevier España, S.L.U. All rights reserved.

  5. Technical note: A simple approach for efficient collection of field reference data for calibrating remote sensing mapping of northern wetlands

    Directory of Open Access Journals (Sweden)

    M. Gålfalk

    2018-03-01

    Full Text Available The calibration and validation of remote sensing land cover products are highly dependent on accurate field reference data, which are costly and practically challenging to collect. We describe an optical method for collection of field reference data that is a fast, cost-efficient, and robust alternative to field surveys and UAV imaging. A lightweight, waterproof, remote-controlled RGB camera (GoPro HERO4 Silver, GoPro Inc. was used to take wide-angle images from 3.1 to 4.5 m in altitude using an extendable monopod, as well as representative near-ground (< 1 m images to identify spectral and structural features that correspond to various land covers in present lighting conditions. A semi-automatic classification was made based on six surface types (graminoids, water, shrubs, dry moss, wet moss, and rock. The method enables collection of detailed field reference data, which is critical in many remote sensing applications, such as satellite-based wetland mapping. The method uses common non-expensive equipment, does not require special skills or training, and is facilitated by a step-by-step manual that is included in the Supplement. Over time a global ground cover database can be built that can be used as reference data for studies of non-forested wetlands from satellites such as Sentinel 1 and 2 (10 m pixel size.

  6. Children and adults exposed to electromagnetic fields at the ICNIRP reference levels: Theoretical assessment of the induced peak temperature increase

    NARCIS (Netherlands)

    J. Bakker (Jan); M.M. Paulides (Maarten); E. Neufeld; A. Christ (A.); N. Kuster (Niels); G.C. van Rhoon (Gerard)

    2011-01-01

    textabstractTo avoid potentially adverse health effects of electromagnetic fields (EMF), the International Commission on Non-Ionizing Radiation Protection (ICNIRP) has defined EMF reference levels. Restrictions on induced whole-body-averaged specific absorption rate (SAR wb) are provided to keep the

  7. Nuclear energy - Reference beta-particle radiation - Part 2: Calibration fundamentals related to basic quantities characterizing the radiation field

    International Nuclear Information System (INIS)

    2004-01-01

    ISO 6980 consists of the following parts, under the general title Nuclear energy - Reference beta-particle radiation: Part 1: Method of production; Part 2: Calibration fundamentals related to basic quantities characterizing the radiation field; Part 3: Calibration of area and personal dosimeters and determination of their response as a function of energy and angle of incidence. This part 2 of ISO 6980 specifies methods for the measurement of the directional absorbed-dose rate in a tissue-equivalent slab phantom in the ISO 6980 reference beta-particle radiation fields. The energy range of the beta-particle-emitting isotopes covered by these reference radiations is 0.066 to 3.54 MeV (maximum energy). Radiation energies outside this range are beyond the scope of this standard. While measurements in a reference geometry (depth of 0.07 mm at perpendicular incidence in a tissue-equivalent slab phantom) with a reference class extrapolation chamber are dealt with in detail, the use of other measurement systems and measurements in other geometries are also described, although in less detail. The ambient dose equivalent, H*(10) as used for area monitoring of strongly penetrating radiation, is not an appropriate quantity for any beta radiation, even for that penetrating a 10 mm thick layer of ICRU tissue (i.e. E max > 2 MeV). If adequate protection is provided at 0.07 mm, only rarely will one be concerned with other depths, for example 3 mm. This document is geared towards organizations wishing to establish reference-class dosimetry capabilities for beta particles, and serves as a guide to the performance of dosimetry with the reference class extrapolation chamber for beta-particle dosimetry in other fields. Guidance is also provided on the statement of measurement uncertainties

  8. IAEA-RCA Co-ordinated Research Program on Reference Asian Man

    International Nuclear Information System (INIS)

    Koyanagi, Taku

    1990-01-01

    The Research Coordination Meeting was held in Mito City, Japan on October 17-21, 1988, inviting the chief investigating scientists from 11 RCA member countries to discuss practical plans for the Coordinated Research Program (CRP) on 'Compilation of Anatomical, Physiological and Metabolic Characteristics for a Reference Asian Man' based on the decision taken at the Project Formulation Meeting for the RCA Project 'Strengthening Radiation Protection' Tokyo, November 1987. Significance of the setting 'Reference Man' for Asian peoples to estimate more realistic radiation doses by applying the real typical physical, physiological and metabolic parameters for them instead of those recommended by ICRP based on the data for 'Caucasian Man' has been indicated by whole member countries and recognized again at the Meeting. The present status of 'Reference Man-oriented Studies' in each countries was presented by the participants and certain difference or difficulties were pointed out among the countries depending on the geographical, social, or economical conditions as well as the ethnic circumstances. After the mutual discussions and exchange of up-to-date information, the general conclusions were drawn as follows: acknowledging the importance of the CRP, research works should be carried out in each country with the expected supports from IAEA and other member countries. The first priority is given on the measurements of human physique (and internal organs) followed by the food consumption survey. Trace element analysis would be done by the countries where possible. The standard manual for data collection might be necessary. The establishments of Co-ordination Center or central body with data base and also subgroup systems are desirable to promote the CRP. (author)

  9. Astrobiology Field Research in Moon/Mars Analogue Environments: Preface

    Science.gov (United States)

    Foing, B. H.; Stoker, C.; Ehrenfreund, P.

    2011-01-01

    Extreme environments on Earth often provide similar terrain conditions to landing/operation sites on Moon and Mars. Several field campaigns (EuroGeoMars2009 and DOMMEX/ILEWG EuroMoonMars from November 2009 to March 2010) were conducted at the Mars Desert Research Station (MDRS) in Utah. Some of the key astrobiology results are presented in this special issue on Astrobiology field research in Moon/Mars analogue environments relevant to investigate the link between geology, minerals, organics and biota. Preliminary results from a multidisciplinary field campaign at Rio Tinto in Spain are presented.

  10. Evolution of Decision Support Systems Research Field in Numbers

    Directory of Open Access Journals (Sweden)

    Ana-Maria SUDUC

    2010-01-01

    Full Text Available The scientific production in a certain field shows, in great extent, the research interests in that field. Decision Support Systems are a particular class of information systems which are gaining more popularity in various domains. In order to identify the evolution in time of the publications number, authors, subjects, publications in the Decision Support Systems (DSS field, and therefore the scientific world interest for this field, in November 2010 there have been organized a series of queries on three major international scientific databases: ScienceDirect, IEEE Xplore Digital Library and ACM Digital Library. The results presented in this paper shows that, even the decision support systems research field started in 1960s, the interests for this type of systems grew exponentially with each year in the last decades.

  11. [Qualitative research into the scientific production in the field of bioethics].

    Science.gov (United States)

    Ribeiro, Carlos Dimas Martins; Maksud, Ivia; Claro, Lenita Barreto Lorena; Un, Julio Wong

    2014-07-01

    This article discusses the character and use of qualitative research methods in the field of bioethics. A systematic review of articles published in Latin American countries and selected from the SciELO database was conducted, with special emphasis on articles that employed qualitative research methodology. The set of articles reveals a field of bioethics composed of three distinct vectors. The first refers to the dual characterization of bioethics that can be defined as a social movement or as a discipline; the second differentiates bioethics from other fields of ethics, especially from predominantly deontology-based professional ethics; and the third is related to ethical approaches adopted in the analyses conducted in the research. A relatively insignificant part of these texts result from qualitative research and they can be divided into four categories according to their themes and guidelines: bioethics as a field and/or discourse; training in health; ethics, care, and clinical practice; formulation of health policy. The production shows, on the one hand, a relatively timid approach of social science researchers to the field of bioethics and, on the other hand, little use of qualitative methodologies in research in the field and, in some cases, a certain lack of precision regarding use of the methods.

  12. Temperature-field measurements of a premixed butane/air circular impinging-flame using reference-beam interferometry

    International Nuclear Information System (INIS)

    Qi, J.A.; Leung, C.W.; Wong, W.O.; Probert, S.D.

    2006-01-01

    Reference-beam interferometry (RBI) was applied to study the axisymmetric temperature fields of a small-scale, low Reynolds-number, low-pressure and fuel-rich premixed butane/air circular-flame jet, when it was impinging vertically upwards onto a horizontal copper plate. By maintaining a Reynolds number, Re, of 500 and an equivalence ratio, φ, of 1.8, interferograms of the impinging-flame jet were obtained for various nozzle-to-plate-distances. Temperature fields of the flame were then determined using the inverse Abel transformation from the obtained interferograms. Temperatures at several locations were measured experimentally with a T-type thermocouple: they were used as a reference to help in the determination as well as the validation. In the present study, a non-contact method has been successfully developed to measure the temperature fields of a circular impinging gas-fired flame jet

  13. Multi-Sited Ethnography and the Field of Educational Research

    Science.gov (United States)

    Pierides, Dean

    2010-01-01

    This paper responds to the challenge of how educational research might be practised in a contemporary world that is no longer necessarily organised by nearness and unity. Focusing on ethnography, it argues for what a multi-sited imaginary contributes to research in the field of education. By giving prominence to the notion of multi-sited…

  14. Field Research Studying Whales in an Undergraduate Animal Behavior Laboratory

    Science.gov (United States)

    MacLaren, R. David; Schulte, Dianna; Kennedy, Jen

    2012-01-01

    This work describes a new field research laboratory in an undergraduate animal behavior course involving the study of whale behavior, ecology and conservation in partnership with a non-profit research organization--the Blue Ocean Society for Marine Conservation (BOS). The project involves two weeks of training and five weekend trips on whale watch…

  15. Entering the Field: Decisions of an Early Career Researcher

    Directory of Open Access Journals (Sweden)

    Sajeel Ahmed

    2016-12-01

    Full Text Available Classic grounded theory methodology is a much-debated topic in research, especially when novice researchers are selecting classic grounded theory for their research or theses. There is a constant need to justify and defend certain processes of grounded theory, which often challenge other research methods. As a novice researcher, I have often found myself juggling between the need to follow specific procedures and regulations of the university while opting to support the views of Glaser and the application of classic grounded theory for my research. To tackle such difficulties, specific decisions were used to support and justify key choices that favoured classic grounded theory and the requirements of the research institute and my research process. This article provides a reflection on the decisions taken at different stages of the research process to help readers make informed decisions before entering the field.

  16. Radioisotope techniques in water resources research and management with special reference to India

    International Nuclear Information System (INIS)

    Banerji, S.

    1977-01-01

    Nuclear techniques using radioisotopes finding applications in research and management of water resources are described briefly with special reference to and representative illustrations of their applications in hydrologic studies in India. As environmental isotopes including the man-made ones i.e. those released in nuclear explosions are intimately tied with the moisture and water in circulation pattern in nature, measurement of their variation provides diagnostic information about the hydrologic parameters of three phases, namely, atmospheric, surface and subsurface, of the hydrologic cycle. Artificial radioisotopes are used for measurement of water flow, sediment transport and seepage. Sealed radioisotope sources are employed in snow gauging, suspended sediment gauging and hydrologic logging. Areas for further research are suggested and need for emphasis on their use in India is indicated. (M.G.B.)

  17. [A social-health care coordination reference in the fields of mental health and child abuse].

    Science.gov (United States)

    García-Panal, Leticia; García-Panal, Javier; Delgado-Mata, Eulalia

    2016-01-01

    The intervention in families with children at risk of abuse stays as a clear example of the need for intersectional coordination mechanisms within the socio-health care framework. Different health services (such as primary care, paediatrics, mental health, community and social services, family support teams and schools) create a network in order to link their main goals in the interest of ensuring children's welfare and improving familieś situation. This essay aims at describing a performance based on the mentioned guidelines, even though there is no accepted and widespread protocol in this regard. We start our research with a one parent family with two children. The mother suffers from a mental health disorder and she fails to adhere to treatment. Both the father of the two children and his family took advantage of this situation to discredit the mother's capability of taking care of her children. This perception had a great impact in her self-esteem and therefore in her willingness and strength to recover. Meetings were held to share relevant information about both the family's general situation, the children's quality of life and the mother's health. Based on this information, the main goals were set in each professional field in order to develop the intervention project. This example of intersectional coordination shows the importance of its standardization for the sake of ensuring a comprehensive attention towards situations that involve initially individuals but that ends up affecting the whole family. Copyright © 2015 Elsevier España, S.L.U. All rights reserved.

  18. On multiplying methods in the field of research evaluation

    Energy Technology Data Exchange (ETDEWEB)

    Derrick, G.; Molas-Gallart, J.; De Rijcke, S.; Meijer, I.; Van der Weijden, I.; Wouters, P.

    2016-07-01

    This special session forms part of a larger program aimed at the multiplication and integration of methodological approaches in the research evaluation and innovation policy field. The session builds on previous initiatives by Gemma Derrick and colleagues at CWTS, INGENIO, the Rathenau Instituut and SPRU, exploring the advantages of qualitative methodological tools at the STI/ENID conference in Lugano, and an international workshop in London in October 2015. The program is highly topical: the research evaluation field is currently reconsidering its methodological foundations in light of new research questions arising from policy initiatives regarding a) the move toward open science; b) a reconceptualization of research excellence to include societal relevance; c) diversification of academic careers, and d) the search for indicators showcasing responsible research behavior and innovation. This new special session at STI2016 will advance and broaden the scope of previous initiatives by building bridges between cutting edge research involving quantitative, qualitative, and mixed methodological research designs. Bringing together leading experts and promising researchers with distinctive methodological skill-sets, the session will demonstrate the advantages of cross-fertilization between ‘core’ and ‘peripheral’ methodological approaches for the research evaluation and science indicators field. (Author)

  19. Invasive Plants Field and Reference Guide: An Ecological Perspective of Plant Invaders of Forests and Woodlands

    Science.gov (United States)

    Cynthia D. Huebner; Cassandra Olson; Heather C. Smith; Heather C. Smith

    2005-01-01

    There are many field guides available about invasive plants and their identification. The purpose of this particular field guide is to give a scientific synthesis of what is known about the behavior of such species in managed, disturbed, and pristine forested systems in addition to key information for accurate identification.

  20. Annual tendency of research papers used ICR mice as experimental animals in biomedical research fields.

    Science.gov (United States)

    Kim, Ji Eun; Nam, Jung Hoon; Cho, Joon Young; Kim, Kil Soo; Hwang, Dae Youn

    2017-06-01

    Institute of Cancer Research (ICR) mice have been widely used in various research fields including toxicology, oncology, pharmacology, and pharmaceutical product safety testing for decades. However, annual tendency of research papers involving ICR mice in various biomedical fields has not been previously analyzed. In this study, we examined the numbers of papers that used ICR mice as experimental animals in the social science, natural science, engineering, medicine-pharmacy, marine agriculture-fishery, and art-kinesiology fields by analyzing big data. Numbers of ICR mouse-used papers gradually increased from 1961 to 2014, but small decreases were observed in 2015 and 2016. The largest number of ICR-used papers were published in the medicine-pharmacy field, followed by natural science and art-kinesiology fields. There were no ICR mouse-used papers in other fields. Furthermore, ICR mice have been widely employed in cell biology studies within the natural science field as well as in biochemistry and pathology in the medicine-pharmacy field. Few ICR mouse-used papers were published in exercise biochemistry and exercise nutrition in the art-kinesiology field. Regardless in most fields, the total numbers of published papers involving ICR mice were higher in 2014 than in other years, although the numbers in some fields including dentistry, veterinary science, and dermatology were high in 2016. Taken together, the present study shows that various ICR stocks, including Korl:ICR mice, are widely employed as experimental animals in various biomedical research fields.

  1. A set of 4D pediatric XCAT reference phantoms for multimodality research

    International Nuclear Information System (INIS)

    Norris, Hannah; Zhang, Yakun; Bond, Jason; Sturgeon, Gregory M.; Samei, E.; Segars, W. P.; Minhas, Anum; Frush, D.; Tward, Daniel J.; Ratnanather, J. T.; Miller, M. I.

    2014-01-01

    Purpose: The authors previously developed an adult population of 4D extended cardiac-torso (XCAT) phantoms for multimodality imaging research. In this work, the authors develop a reference set of 4D pediatric XCAT phantoms consisting of male and female anatomies at ages of newborn, 1, 5, 10, and 15 years. These models will serve as the foundation from which the authors will create a vast population of pediatric phantoms for optimizing pediatric CT imaging protocols. Methods: Each phantom was based on a unique set of CT data from a normal patient obtained from the Duke University database. The datasets were selected to best match the reference values for height and weight for the different ages and genders according to ICRP Publication 89. The major organs and structures were segmented from the CT data and used to create an initial pediatric model defined using nonuniform rational B-spline surfaces. The CT data covered the entire torso and part of the head. To complete the body, the authors manually added on the top of the head and the arms and legs using scaled versions of the XCAT adult models or additional models created from cadaver data. A multichannel large deformation diffeomorphic metric mapping algorithm was then used to calculate the transform from a template XCAT phantom (male or female 50th percentile adult) to the target pediatric model. The transform was applied to the template XCAT to fill in any unsegmented structures within the target phantom and to implement the 4D cardiac and respiratory models in the new anatomy. The masses of the organs in each phantom were matched to the reference values given in ICRP Publication 89. The new reference models were checked for anatomical accuracy via visual inspection. Results: The authors created a set of ten pediatric reference phantoms that have the same level of detail and functionality as the original XCAT phantom adults. Each consists of thousands of anatomical structures and includes parameterized models

  2. A set of 4D pediatric XCAT reference phantoms for multimodality research

    Energy Technology Data Exchange (ETDEWEB)

    Norris, Hannah, E-mail: Hannah.norris@duke.edu; Zhang, Yakun; Bond, Jason; Sturgeon, Gregory M.; Samei, E.; Segars, W. P. [Carl E. Ravin Advanced Imaging Laboratories, Department of Radiology, Duke University Medical Center, Durham, North Carolina 27705 (United States); Minhas, Anum; Frush, D. [Department of Radiology, Duke University Medical Center, Durham, North Carolina 27710 (United States); Tward, Daniel J.; Ratnanather, J. T.; Miller, M. I. [Center for Imaging Science, Johns Hopkins University, Baltimore, Maryland 21218 (United States)

    2014-03-15

    Purpose: The authors previously developed an adult population of 4D extended cardiac-torso (XCAT) phantoms for multimodality imaging research. In this work, the authors develop a reference set of 4D pediatric XCAT phantoms consisting of male and female anatomies at ages of newborn, 1, 5, 10, and 15 years. These models will serve as the foundation from which the authors will create a vast population of pediatric phantoms for optimizing pediatric CT imaging protocols. Methods: Each phantom was based on a unique set of CT data from a normal patient obtained from the Duke University database. The datasets were selected to best match the reference values for height and weight for the different ages and genders according to ICRP Publication 89. The major organs and structures were segmented from the CT data and used to create an initial pediatric model defined using nonuniform rational B-spline surfaces. The CT data covered the entire torso and part of the head. To complete the body, the authors manually added on the top of the head and the arms and legs using scaled versions of the XCAT adult models or additional models created from cadaver data. A multichannel large deformation diffeomorphic metric mapping algorithm was then used to calculate the transform from a template XCAT phantom (male or female 50th percentile adult) to the target pediatric model. The transform was applied to the template XCAT to fill in any unsegmented structures within the target phantom and to implement the 4D cardiac and respiratory models in the new anatomy. The masses of the organs in each phantom were matched to the reference values given in ICRP Publication 89. The new reference models were checked for anatomical accuracy via visual inspection. Results: The authors created a set of ten pediatric reference phantoms that have the same level of detail and functionality as the original XCAT phantom adults. Each consists of thousands of anatomical structures and includes parameterized models

  3. Reference metrology in a research fab: the NIST clean calibrations thrust

    Science.gov (United States)

    Dixson, Ronald; Fu, Joe; Orji, Ndubuisi; Renegar, Thomas; Zheng, Alan; Vorburger, Theodore; Hilton, Al; Cangemi, Marc; Chen, Lei; Hernandez, Mike; Hajdaj, Russell; Bishop, Michael; Cordes, Aaron

    2009-03-01

    In 2004, the National Institute of Standards and Technology (NIST) commissioned the Advanced Measurement Laboratory (AML) - a state-of-the-art, five-wing laboratory complex for leading edge NIST research. The NIST NanoFab - a 1765 m2 (19,000 ft2) clean room with 743 m2 (8000 ft2) of class 100 space - is the anchor of this facility and an integral component of the new Center for Nanoscale Science and Technology (CNST) at NIST. Although the CNST/NanoFab is a nanotechnology research facility with a different strategic focus than a current high volume semiconductor fab, metrology tools still play an important role in the nanofabrication research conducted here. Some of the metrology tools available to users of the NanoFab include stylus profiling, scanning electron microscopy (SEM), and atomic force microscopy (AFM). Since 2001, NIST has collaborated with SEMATECH to implement a reference measurement system (RMS) using critical dimension atomic force microscopy (CD-AFM). NIST brought metrology expertise to the table and SEMATECH provided access to leading edge metrology tools in their clean room facility in Austin. Now, in the newly launched "clean calibrations" thrust at NIST, we are implementing the reference metrology paradigm on several tools in the CNST/NanoFab. Initially, we have focused on calibration, monitoring, and uncertainty analysis for a three-tool set consisting of a stylus profiler, an SEM, and an AFM. Our larger goal is the development of new and supplemental calibrations and standards that will benefit from the Class 100 environment available in the NanoFab and offering our customers calibration options that do not require exposing their samples to less clean environments. Toward this end, we have completed a preliminary evaluation of the performance of these instruments. The results of these evaluations suggest that the achievable uncertainties are generally consistent with our measurement goals.

  4. Improvement of neutron irradiation field of research reactors for BNCT

    International Nuclear Information System (INIS)

    Aizawa, Otohiko

    1992-01-01

    The modification of research reactors for an improvement of the irradiation field for BNCT has been investigated in comparison with the field characteristics of the 'old' configuration at the Musashi reactor. The new point of this study is that the evaluation has been done by using an arrangement including both the facility structure and a whole-body phantom, and also by considering the whole-body absorbed dose. (author)

  5. Setting research strategy on electromagnetic-field pollution of Ecuador

    International Nuclear Information System (INIS)

    Becerra, C.A.

    1989-01-01

    General population and occupational groups are being exposed to electromagnetic field (EMF) nonionizing radiation that come from all electric or electronic equipment that work either with extremely low frequency (ELF) or radiofrequency (RF) fields. This preoccupation has generated research and regulation plans in some countries int he world, in order to set a clear configuration of bioeffects and other environmental implications derived from exposures to ELF/RF EMF

  6. Overview of CEA research in the field of radionuclides migration

    International Nuclear Information System (INIS)

    Poinssot, Ch.; Trotignon, L.; Tevissen, E.

    2006-01-01

    This report presents a synthetic status of the researches conducted within the Nuclear Energy Division (CEA/DEN) in the field of radionuclides migration in three specific areas which have been chosen for their representativeness and potential impact: the migration of RN in PWR reactors, the migration of RN from a deep geological repository and the migration processes in the surface environments. In addition, some status is given about more generic research which is conducted in the field of RN speciation in the aqueous phase and at the interfaces and regarding chemistry / transport couplings. Additional information about the human and technical means involved in these fields of research in CEA/DEN is finally given in the Appendix. (authors)

  7. Partitioning and transmutation. Current developments - 2007. A report from the Swedish reference group on P-T-research

    International Nuclear Information System (INIS)

    Ahlstroem, Per-Eric; Blomgren, Jan; Eriksson, Marcus; Seltborg, Per; Wallenius, Jan; Westlen, Daniel

    2007-06-01

    This report is written on behalf of the Swedish reference group for research on partitioning and transmutation. The reference group has been assembled by SKB and its members represent the teams that are active in this field at Swedish universities. The present report summarises the progress in the field through the years 2004-2006. A prerequisite for transmutation by irradiation with neutrons is that the nuclides to be transmuted are separated (partitioned) from the other nuclides in the spent fuel. In particular the remaining uranium must be taken away unless you want to produce more plutonium and other transuranium elements. Separation of the various elements can at least in principle be achieved by mechanical and chemical processes. Currently there exist some large scale facilities for separation of uranium and plutonium from the spent fuel-reprocessing plants. These can, however, not separate the minor actinides - neptunium, americium and curium - from the high level waste that goes to a repository. Plutonium constitutes about 90% of the transuranium elements in fuel from light water reactors. The objective of current research on partitioning is to find and develop processes suitable for separation of the heavier actinides (and possibly some long-lived fission products) on an industrial scale. The objective of current research on transmutation is to define, investigate and develop facilities that may be suitable for transmutation of the aforementioned long-lived radionuclides. The research on partitioning has made important progress in recent years. In some cases one has succeeded to separate americium and curium. Many challenges remain however. Within hydrochemistry one has achieved sufficiently good distribution and separation factors. The focus turns now towards development of an operating process. The search for ligands that give sufficiently good extraction and separation will continue but with less intensity. The emphasis will rather be on improving

  8. Partitioning and transmutation. Current developments - 2007. A report from the Swedish reference group on P-T-research

    Energy Technology Data Exchange (ETDEWEB)

    Ahlstroem, Per-Eric (ed.) [Swedish Nuclear Fuel and Waste Management Co., Stockholm (Sweden); Blomgren, Jan [Uppsala Univ. (Sweden). Dept. of Neutron Research; Ekberg, Christian; Englund, Sofie; Fermvik, Anna; Liljenzin, Jan-Olov; Retegan, Teodora; Skarnemark, Gunnar [Chalmers Univ. of Technology, Goeteborg (Sweden); Eriksson, Marcus; Seltborg, Per; Wallenius, Jan; Westlen, Daniel [Royal Inst. of Technology, Stockholm (Sweden)

    2007-06-15

    This report is written on behalf of the Swedish reference group for research on partitioning and transmutation. The reference group has been assembled by SKB and its members represent the teams that are active in this field at Swedish universities. The present report summarises the progress in the field through the years 2004-2006. A prerequisite for transmutation by irradiation with neutrons is that the nuclides to be transmuted are separated (partitioned) from the other nuclides in the spent fuel. In particular the remaining uranium must be taken away unless you want to produce more plutonium and other transuranium elements. Separation of the various elements can at least in principle be achieved by mechanical and chemical processes. Currently there exist some large scale facilities for separation of uranium and plutonium from the spent fuel-reprocessing plants. These can, however, not separate the minor actinides - neptunium, americium and curium - from the high level waste that goes to a repository. Plutonium constitutes about 90% of the transuranium elements in fuel from light water reactors. The objective of current research on partitioning is to find and develop processes suitable for separation of the heavier actinides (and possibly some long-lived fission products) on an industrial scale. The objective of current research on transmutation is to define, investigate and develop facilities that may be suitable for transmutation of the aforementioned long-lived radionuclides. The research on partitioning has made important progress in recent years. In some cases one has succeeded to separate americium and curium. Many challenges remain however. Within hydrochemistry one has achieved sufficiently good distribution and separation factors. The focus turns now towards development of an operating process. The search for ligands that give sufficiently good extraction and separation will continue but with less intensity. The emphasis will rather be on improving

  9. Proposal for Reference Soil Concentrations of Radiocesium Applicable to Accidentally Contaminated Rice and Soybean Fields

    Energy Technology Data Exchange (ETDEWEB)

    Choi, Yong-Ho; Lim, Kwang-Muk; Jun, In; Kim, Byung-Ho; Keum, Dong-Kwon [Korea Atomic Energy Research Institute, Daejeon (Korea, Republic of)

    2014-10-15

    Radionuclides in arable soil can be transferred to food plants via root uptake. If radionuclide concentrations in food plants to be grown in contaminated soil are estimated to be higher than the authorized food standards, their culture needs to be cancelled or ameliorating practices need to be taken. Therefore, it is necessary to establish soil concentration limits or reference soil concentrations of radiocesium standing with the food standards in preparation for potential severe NPP accidents in this and adjacent countries. In the present study, reference soil concentrations of radiocesium for rice and soybean, two of the most important food plants in Korea, were provisionally established using all relevant domestic data of soil-to-plant transfer factor (TF). The reference soil concentrations of radiocesium for rice and soybean were calculated using available domestic TF data, and were proposed for provisional use at the time of a severe NPP accident. The present RSCs are based on limited numbers of {sup 137}Cs TF values. More amounts of relevant TF data should be produced to have more reliable RSCs. For other staple-food plants such as Chinese cabbage and radish, RSCs of radiocesium should also be established. However, only a couple of relevant domestic TF values are available for these vegetables.

  10. Proposal for Reference Soil Concentrations of Radiocesium Applicable to Accidentally Contaminated Rice and Soybean Fields

    International Nuclear Information System (INIS)

    Choi, Yong-Ho; Lim, Kwang-Muk; Jun, In; Kim, Byung-Ho; Keum, Dong-Kwon

    2014-01-01

    Radionuclides in arable soil can be transferred to food plants via root uptake. If radionuclide concentrations in food plants to be grown in contaminated soil are estimated to be higher than the authorized food standards, their culture needs to be cancelled or ameliorating practices need to be taken. Therefore, it is necessary to establish soil concentration limits or reference soil concentrations of radiocesium standing with the food standards in preparation for potential severe NPP accidents in this and adjacent countries. In the present study, reference soil concentrations of radiocesium for rice and soybean, two of the most important food plants in Korea, were provisionally established using all relevant domestic data of soil-to-plant transfer factor (TF). The reference soil concentrations of radiocesium for rice and soybean were calculated using available domestic TF data, and were proposed for provisional use at the time of a severe NPP accident. The present RSCs are based on limited numbers of 137 Cs TF values. More amounts of relevant TF data should be produced to have more reliable RSCs. For other staple-food plants such as Chinese cabbage and radish, RSCs of radiocesium should also be established. However, only a couple of relevant domestic TF values are available for these vegetables

  11. Reference genotype and exome data from an Australian Aboriginal population for health-based research.

    Science.gov (United States)

    Tang, Dave; Anderson, Denise; Francis, Richard W; Syn, Genevieve; Jamieson, Sarra E; Lassmann, Timo; Blackwell, Jenefer M

    2016-04-12

    Genetic analyses, including genome-wide association studies and whole exome sequencing (WES), provide powerful tools for the analysis of complex and rare genetic diseases. To date there are no reference data for Aboriginal Australians to underpin the translation of health-based genomic research. Here we provide a catalogue of variants called after sequencing the exomes of 72 Aboriginal individuals to a depth of 20X coverage in ∼80% of the sequenced nucleotides. We determined 320,976 single nucleotide variants (SNVs) and 47,313 insertions/deletions using the Genome Analysis Toolkit. We had previously genotyped a subset of the Aboriginal individuals (70/72) using the Illumina Omni2.5 BeadChip platform and found ~99% concordance at overlapping sites, which suggests high quality genotyping. Finally, we compared our SNVs to six publicly available variant databases, such as dbSNP and the Exome Sequencing Project, and 70,115 of our SNVs did not overlap any of the single nucleotide polymorphic sites in all the databases. Our data set provides a useful reference point for genomic studies on Aboriginal Australians.

  12. Neutron Reference Benchmark Field Specification: ACRR 44 Inch Lead-Boron (LB44) Bucket Environment (ACRR-LB44-CC-32-CL).

    Energy Technology Data Exchange (ETDEWEB)

    Vega, Richard Manuel [Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States); Parma, Edward J. [Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States); Griffin, Patrick J. [Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States); Vehar, David W. [Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)

    2015-07-01

    This report was put together to support the International Atomic Energy Agency (IAEA) REAL- 2016 activity to validate the dosimetry community’s ability to use a consistent set of activation data and to derive consistent spectral characterizations. The report captures details of integral measurements taken in the Annular Core Research Reactor (ACRR) central cavity with the 44 inch Lead-Boron (LB44) bucket, reference neutron benchmark field. The field is described and an “a priori” calculated neutron spectrum is reported, based on MCNP6 calculations, and a subject matter expert (SME) based covariance matrix is given for this “a priori” spectrum. The results of 31 integral dosimetry measurements in the neutron field are reported.

  13. Annual tendency of research papers used ICR mice as experimental animals in biomedical research fields

    OpenAIRE

    Kim, Ji Eun; Nam, Jung Hoon; Cho, Joon Young; Kim, Kil Soo; Hwang, Dae Youn

    2017-01-01

    Institute of Cancer Research (ICR) mice have been widely used in various research fields including toxicology, oncology, pharmacology, and pharmaceutical product safety testing for decades. However, annual tendency of research papers involving ICR mice in various biomedical fields has not been previously analyzed. In this study, we examined the numbers of papers that used ICR mice as experimental animals in the social science, natural science, engineering, medicine-pharmacy, marine agricultur...

  14. Technical note: A simple approach for efficient collection of field reference data for calibrating remote sensing mapping of northern wetlands

    Science.gov (United States)

    Gålfalk, Magnus; Karlson, Martin; Crill, Patrick; Bousquet, Philippe; Bastviken, David

    2018-03-01

    The calibration and validation of remote sensing land cover products are highly dependent on accurate field reference data, which are costly and practically challenging to collect. We describe an optical method for collection of field reference data that is a fast, cost-efficient, and robust alternative to field surveys and UAV imaging. A lightweight, waterproof, remote-controlled RGB camera (GoPro HERO4 Silver, GoPro Inc.) was used to take wide-angle images from 3.1 to 4.5 m in altitude using an extendable monopod, as well as representative near-ground (wetland mapping. The method uses common non-expensive equipment, does not require special skills or training, and is facilitated by a step-by-step manual that is included in the Supplement. Over time a global ground cover database can be built that can be used as reference data for studies of non-forested wetlands from satellites such as Sentinel 1 and 2 (10 m pixel size).

  15. When referring physicians and researchers disagree on equipoise: the TOTAL trial experience.

    Science.gov (United States)

    Rodrigues, H C M L; Deprest, J; v d Berg, P P

    2011-06-01

    In this article, we reflect on whether randomized controlled trials (RCTs) are adequate for the clinical evaluation of maternal-fetal surgery for congenital diaphragmatic hernia (CDH), focusing on the role of patients' preferences in the setting up of research protocols, on the requirement of equipoise and on the concept of therapeutic misconception (TM). We describe the conception and setting up of the tracheal occlusion (TO) to accelerate lung growth trial and analyze the ethical dilemmas faced by the research team during that time. Depending on the view adopted regarding the scope of equipoise, there are two ways of dealing with patient's preferences concerning fetoscopic endoluminal TO and expectant management during pregnancy for CDH. The solution adopted for fetoscopic endoluminal tracheal occlusion (FETO) is justified by the extended period of time it has been available to patients before the start of the RCT. Strong patient and referring physician preferences do not entail a right to have FETO, since it is a procedure of yet unproven efficacy and safety. In the future, to avoid the dilemmas posed by the TM and in name of the right of future generations of patients to have access to treatment of proven safety and efficacy, researchers must be able to plan RCT in due time. Copyright © 2011 John Wiley & Sons, Ltd.

  16. A Survey on Health Literacy of Referred Diabetic Patients to Yazd Diabetes Research Center

    Directory of Open Access Journals (Sweden)

    z Rezaee Esfahrood

    2016-09-01

    Full Text Available Introduction:The ability to use skills such as reading, listening, analysis and decision making in health status depends on the degree to which individuals have the capacity to obtain, process, and understanding basic health information and services needed which is defined in term of health literacy. The purpose of this study was to determine the level of health literacy in referred patients to Yazd Diabetes Research Center. Methods: This cross-sectional study performed on 432 patients referred to Yazd Diabetes Research Center in 2014. Health literacy was measured by the Test of Functional Health Literacy in Adults (TOFHLA and analyzed using the SPSS-17 software and analytical statistics (T-Test, Chi-Square, A-Nova and linear regression. Results: The mean age of studied population was 55.02 ± 6.32 years old and the mean duration of diabetes was 10.24 ± 7.13 years old. Increase age and decrease the Duration of diabetes, Increase health literacy scores. The average of Health literacy scores was significantly higher in men than women. Retired people, people living in the city, people with high educational level and good economic situation were more literate. (P-Value <0.001 Conclusion: The results showed that health literacy in 59.3 percent of patients was insufficient, in 18.5 percent was border and only 22.2 percent of patients had adequate health literacy that providing facilities and health literacy education seems to be necessary for them.  

  17. Conceptualizing Policy Work as Activity and Field of Research

    OpenAIRE

    Jan Kohoutek; Martin Nekola; Vilém Novotný

    2013-01-01

    The area of policy work and policy workers within government bureaucracies is encompassing a large field of activities and research. This article aims to provide a synthesised perspective on policy work in relating theoretical and empirical accounts of policy workers, identifying points of convergence and linking them to essential assumptions on research in policy work. We conceptualize policy work as activity within government bureaucracies from three interrelated perspectives: the professio...

  18. Astrobiology field research in Moon/Mars Analogue

    NARCIS (Netherlands)

    Foing, B.H.; Stoker, C.; Ehrenfreund, P.

    2011-01-01

    Extreme environments on Earth often provide similar terrain conditions to landing/operation sites on Moon and Mars. Several field campaigns (EuroGeoMars2009 and DOMMEX/ILEWG EuroMoonMars from November 2009 to March 2010) were conducted at the Mars Desert Research Station (MDRS) in Utah. Some of the

  19. Enhancing Field Research Methods with Mobile Survey Technology

    Science.gov (United States)

    Glass, Michael R.

    2015-01-01

    This paper assesses the experience of undergraduate students using mobile devices and a commercial application, iSurvey, to conduct a neighborhood survey. Mobile devices offer benefits for enhancing student learning and engagement. This field exercise created the opportunity for classroom discussions on the practicalities of urban research, the…

  20. Pulsed electric field (PEF)research at USDA, ARS, ERRC

    Science.gov (United States)

    This article summarizes the effects of pulsed electric fields on the microbiological safety and quality aspects of various liquid food matrices, obtained at USDA, ARS, Eastern Regional Research Center under CRIS Project No. 1935-41420-013-00D, Processing Intervention Technologies for Enhancing the S...

  1. Research fields, challenges and opportunities in European oilseed crops breeding

    Directory of Open Access Journals (Sweden)

    Vincourt Patrick

    2014-11-01

    Full Text Available Due to the geographical specialization in oilseed world production, Europe has a major role to play in winter oilseed rape and sunflower breeding. Mainly based on the most recen t results, this review aims to identify the main research and breeding targets for these two crops, as seen through publications, with an attempt to suggest what are opportunities and challenges in these research fields. Growing a healthy and yielding crop remains the key driver for agronomic production. However sustainability and environmental profiles of the cultivar are now entering the field of play: The sustainability concern invested the field of resistance to diseases. Nitrogen use efficiency became an important target for Brassica napus, and crop resilience toward drought stresses is the way chosen in Helianthus annuus breeding for yield improvement. Significant advances are underway for quality traits, but the uncertainty on nutritional and industrial demand may explain why the product diversification remains low.

  2. Certified Reference Material IAEA-448: Soil from Oil Field Contaminated with Technically Enhanced Radium-226

    International Nuclear Information System (INIS)

    2013-01-01

    To ensure reliable evaluation of potential radiological hazards and proper decision making related to radiation protection measures, the IAEA, through the IAEA Environment Laboratories, supports Member State laboratories in their efforts to maintain readiness and to improve the quality of analytical results. It does so by producing reference materials, by developing standardized methods for sample collection and analysis, and by conducting interlaboratory comparisons and proficiency tests as tools for external quality control of analytical results. The problem of naturally occurring radioactive material (NORM) contamination is known to be widespread, occurring in oil and gas production facilities throughout the world. It has become a subject of attention in many IAEA Member States. In response to this radiological concern, facilities in many Member States have been characterizing the nature and extent of NORM in oil and gas installations and in the surrounding environment, evaluating the potential for exposure to workers and the public, and developing methods for properly managing these relatively high massic activity residues. Within this context, the IAEA Environment Laboratories, in cooperation with the Atomic Energy Commission of Syria, an IAEA Collaborating Centre, have prepared a new certified reference material of soil contaminated with NORM, identified as IAEA-448, certified for the massic activity of 226Ra. This report presents the methodologies used for the production and certification of IAEA-448

  3. Natural and Accelerated Bioremediation Research (NABIR) Field Research Center (FRC) Management Plan

    Energy Technology Data Exchange (ETDEWEB)

    Watson, D.B.

    2002-02-28

    The Environmental Sciences Division at Oak Ridge National Laboratory has established a Field Research Center (FRC) to support the Natural and Accelerated Bioremediation Research (NABIR) Program on the U.S. Department of Energy (DOE) Oak Ridge Reservation in Oak Ridge, Tennessee for the DOE Headquarters Office of Biological and Environmental Research within the Office of Science.

  4. Development of references of anomalies detection on P91 material using Self-Magnetic Leakage Field (SMLF) technique

    Science.gov (United States)

    Husin, Shuib; Afiq Pauzi, Ahmad; Yunus, Salmi Mohd; Ghafar, Mohd Hafiz Abdul; Adilin Sekari, Saiful

    2017-10-01

    This technical paper demonstrates the successful of the application of self-magnetic leakage field (SMLF) technique in detecting anomalies in weldment of a thick P91 materials joint (1 inch thickness). Boiler components such as boiler tubes, stub boiler at penthouse and energy piping such as hot reheat pipe (HRP) and H-balance energy piping to turbine are made of P91 material. P91 is ferromagnetic material, therefore the technique of self-magnetic leakage field (SMLF) is applicable for P91 in detecting anomalies within material (internal defects). The technique is categorized under non-destructive technique (NDT). It is the second passive method after acoustic emission (AE), at which the information on structures radiation (magnetic field and energy waves) is used. The measured magnetic leakage field of a product or component is a magnetic leakage field occurring on the component’s surface in the zone of dislocation stable slipbands under the influence of operational (in-service) or residual stresses or in zones of maximum inhomogeneity of metal structure in new products or components. Inter-granular and trans-granular cracks, inclusion, void, cavity and corrosion are considered types of inhomogeneity and discontinuity in material where obviously the output of magnetic leakage field will be shown when using this technique. The technique does not required surface preparation for the component to be inspected. This technique is contact-type inspection, which means the sensor has to touch or in-contact to the component’s surface during inspection. The results of application of SMLF technique on the developed P91 reference blocks have demonstrated that the technique is practical to be used for anomaly inspection and detection as well as identification of anomalies’ location. The evaluation of this passive self-magnetic leakage field (SMLF) technique has been verified by other conventional non-destructive tests (NDTs) on the reference blocks where simulated

  5. [Primary care: A definition of the field to develop research].

    Science.gov (United States)

    Verga-Gérard, A

    2018-03-01

    Research in the field of primary care has dramatically increased in France in recent years, especially since 2013 with the introduction of primary care as a thematic priority for research proposals launched by the Ministry of Health (Direction générale de l'offre de soins). The RECaP (Research in Clinical Epidemiology and Public Health) network is a French research network supported by Inserm, which recently implemented a specific working group focusing on research in primary care, based on a multidisciplinary approach. Researchers from different specialties participate in this group. The first aim of the group was to reach a common definition of the perimeter and of the panel of healthcare professionals and structures potentially involved in the field of primary care. For this purpose, a selection of different data sets of sources defining primary care was analyzed by the group, each participant collecting a set of sources, from which a synthesis was made and discussed. A definition of primary care at different levels (international, European and French) was summarized. A special attention was given to the French context in order to adapt the perimeter to the characteristics of the French healthcare system, notably by illustrating the different key elements of the definition with the inclusion of primary care actors and the type of practice premises. In conclusion, this work illustrates the diversity of primary care in France and the potential offered for research purposes. Copyright © 2017 Elsevier Masson SAS. All rights reserved.

  6. Reference data for plasma shaping and magnetic separatrix formation in the JET poloidal field system

    International Nuclear Information System (INIS)

    Lazzaro, E.; Keegan, B.

    1986-01-01

    The analysis and the design of special equilibrium configurations (plasma with separatrix boundary) can be greatly simplified by a chart of the response of the plasma to currents in the poloidal field coils. This note presents this information for some interesting cases, namely for elongated plasmas eventually transformed into double null or in single null separatrix configurations. The calculations are made using the latest edition of the JET equilibrium code ''INVERSX'' including the detailed permeability characteristics of the iron core. (author)

  7. Applications of field-programmable gate arrays in scientific research

    CERN Document Server

    Sadrozinski, Hartmut F W

    2011-01-01

    Focusing on resource awareness in field-programmable gate array (FPGA) design, Applications of Field-Programmable Gate Arrays in Scientific Research covers the principle of FPGAs and their functionality. It explores a host of applications, ranging from small one-chip laboratory systems to large-scale applications in ""big science."" The book first describes various FPGA resources, including logic elements, RAM, multipliers, microprocessors, and content-addressable memory. It then presents principles and methods for controlling resources, such as process sequencing, location constraints, and in

  8. Personnel economics: A research field comes of age

    DEFF Research Database (Denmark)

    Grund, Christian; Bryson, Alex; Dur, Robert

    2017-01-01

    The application of economic theory and principles to firms’ human resource problems is commonplace today. Personnel economics has come a long way since its early days in the late 1970s and 1980s, when scholars developed its theoretical foundations. In this contribution and introduction...... to the Special Issue ‘Advances in personnel economics’ of the German Journal of Human Resource Management, we would like to illustrate the origins of the field, outline how personnel economics relates to other research areas, describe major developments in the field and address its future challenges....

  9. Culture Studies in the Field of International Business Research

    DEFF Research Database (Denmark)

    Worm, Verner; Li, Xin; Jakobsen, Michael

    Purpose: The purpose of this paper is to describe the status of culture studies within the field of international business research, and to examine how two main paradigms – essentialism and social constructivism – relate to the discourse in this field. We analyze the main points of the two...... in this paper. Practical implications: We encourage practitioners to learn how to switch, both sequentially and spatially, between the two paradigms of culture (fundamentally incommensurable though they are). This involves taking a “both/or” approach to the two paradigms. Originality/Value: We show...

  10. Development of a Reference Image Collection Library for Histopathology Image Processing, Analysis and Decision Support Systems Research.

    Science.gov (United States)

    Kostopoulos, Spiros; Ravazoula, Panagiota; Asvestas, Pantelis; Kalatzis, Ioannis; Xenogiannopoulos, George; Cavouras, Dionisis; Glotsos, Dimitris

    2017-06-01

    Histopathology image processing, analysis and computer-aided diagnosis have been shown as effective assisting tools towards reliable and intra-/inter-observer invariant decisions in traditional pathology. Especially for cancer patients, decisions need to be as accurate as possible in order to increase the probability of optimal treatment planning. In this study, we propose a new image collection library (HICL-Histology Image Collection Library) comprising 3831 histological images of three different diseases, for fostering research in histopathology image processing, analysis and computer-aided diagnosis. Raw data comprised 93, 116 and 55 cases of brain, breast and laryngeal cancer respectively collected from the archives of the University Hospital of Patras, Greece. The 3831 images were generated from the most representative regions of the pathology, specified by an experienced histopathologist. The HICL Image Collection is free for access under an academic license at http://medisp.bme.teiath.gr/hicl/ . Potential exploitations of the proposed library may span over a board spectrum, such as in image processing to improve visualization, in segmentation for nuclei detection, in decision support systems for second opinion consultations, in statistical analysis for investigation of potential correlations between clinical annotations and imaging findings and, generally, in fostering research on histopathology image processing and analysis. To the best of our knowledge, the HICL constitutes the first attempt towards creation of a reference image collection library in the field of traditional histopathology, publicly and freely available to the scientific community.

  11. Measuring scientific research in emerging nano-energy field

    Science.gov (United States)

    Guan, Jiancheng; Liu, Na

    2014-04-01

    The purpose of this paper is to comprehensively explore scientific research profiles in the field of emerging nano-energy during 1991-2012 based on bibliometrics and social network analysis. We investigate the growth pattern of research output, and then carry out across countries/regions comparisons on research performances. Furthermore, we examine scientific collaboration across countries/regions by analyzing collaborative intensity and networks in 3- to 4-year intervals. Results indicate with an impressively exponential growth pattern of nano-energy articles, the world share of scientific "giants," such as the USA, Germany, England, France and Japan, display decreasing research trends, especially in the USA. Emerging economies, including China, South Korea and India, exhibit a rise in terms of the world share, illustrating strong development momentum of these countries in nano-energy research. Strikingly, China displays a remarkable rise in scientific influence rivaling Germany, Japan, France, and England in the last few years. Finally, the scientific collaborative network in nano-energy research has expanded steadily. Although the USA and several major European countries play significantly roles on scientific collaboration, China and South Korea exert great influence on scientific collaboration in recent years. The findings imply that emerging economies can earn competitive advantages in some emerging fields by properly engaging a catch-up strategy.

  12. Introducing the Forensic Research/Reference on Genetics knowledge base, FROG-kb.

    Science.gov (United States)

    Rajeevan, Haseena; Soundararajan, Usha; Pakstis, Andrew J; Kidd, Kenneth K

    2012-09-01

    Online tools and databases based on multi-allelic short tandem repeat polymorphisms (STRPs) are actively used in forensic teaching, research, and investigations. The Fst value of each CODIS marker tends to be low across the populations of the world and most populations typically have all the common STRP alleles present diminishing the ability of these systems to discriminate ethnicity. Recently, considerable research is being conducted on single nucleotide polymorphisms (SNPs) to be considered for human identification and description. However, online tools and databases that can be used for forensic research and investigation are limited. The back end DBMS (Database Management System) for FROG-kb is Oracle version 10. The front end is implemented with specific code using technologies such as Java, Java Servlet, JSP, JQuery, and GoogleCharts. We present an open access web application, FROG-kb (Forensic Research/Reference on Genetics-knowledge base, http://frog.med.yale.edu), that is useful for teaching and research relevant to forensics and can serve as a tool facilitating forensic practice. The underlying data for FROG-kb are provided by the already extensively used and referenced ALlele FREquency Database, ALFRED (http://alfred.med.yale.edu). In addition to displaying data in an organized manner, computational tools that use the underlying allele frequencies with user-provided data are implemented in FROG-kb. These tools are organized by the different published SNP/marker panels available. This web tool currently has implemented general functions possible for two types of SNP panels, individual identification and ancestry inference, and a prediction function specific to a phenotype informative panel for eye color. The current online version of FROG-kb already provides new and useful functionality. We expect FROG-kb to grow and expand in capabilities and welcome input from the forensic community in identifying datasets and functionalities that will be most helpful

  13. Pea mutant risnod27 as reference line for field assessment of impact of symbiotic nitrogen fixation

    Czech Academy of Sciences Publication Activity Database

    Biedermannová, E.; Novák, Karel; Vondrys, J.

    2002-01-01

    Roč. 25, č. 9 (2002), s. 2051-2066 ISSN 0190-4167 R&D Projects: GA ČR GA521/00/0937 Institutional research plan: CEZ:AV0Z5020903 Keywords : pea mutant * symbiotic nodules Subject RIV: EE - Microbiology, Virology Impact factor: 0.593, year: 2002

  14. Development of the neutron reference calibration field using a {sup 252}Cf standard source surrounded with PMMA moderators

    Energy Technology Data Exchange (ETDEWEB)

    Yoshida, T.; Kanai, K.; Tsujimura, N. [Japan Nuclear Cycle Development Institute, Ibaraki-ken (Japan)

    2002-07-01

    The authors developed the neutron reference calibration fields using a {sup 252} Cf standard source surrounded with PMMA moderators at the Japan Nuclear Cycle Development (JNC), Tokai Works. The moderators are co-axial, hollow cylinders made of lead-contained PMMA with a thickness of 13.5, 35.0, 59.5 and 77.0mm, and the {sup 252} Cf source is guided to the geometric center of moderators by the pneumatic system. These fields can provide the moderated neutron spectra very similar to those encountered around the globe-boxes of the fabrication process of MOX (PuO{sub 2}-UO{sub 2} mixed oxide) fuel. The neutron energy spectrum at the reference calibration point was evaluated from the calculations by MCNP4B and the measurements by the INS-type Bonner multi-sphere spectrometer and the hydrogen-filled proportional counters. The calculated neutron spectra were in good agreements with the measured ones. These fields were characterized in terms of the neutron fluence rate, spectral composition and ambient dose equivalent rate, and have served for the response-characterization of various neutron survey instruments.

  15. Development of the neutron reference calibration field using a 252Cf standard source surrounded with PMMA moderators

    International Nuclear Information System (INIS)

    Yoshida, T.; Kanai, K.; Tsujimura, N.

    2002-01-01

    The authors developed the neutron reference calibration fields using a 252 Cf standard source surrounded with PMMA moderators at the Japan Nuclear Cycle Development (JNC), Tokai Works. The moderators are co-axial, hollow cylinders made of lead-contained PMMA with a thickness of 13.5, 35.0, 59.5 and 77.0mm, and the 252 Cf source is guided to the geometric center of moderators by the pneumatic system. These fields can provide the moderated neutron spectra very similar to those encountered around the globe-boxes of the fabrication process of MOX (PuO 2 -UO 2 mixed oxide) fuel. The neutron energy spectrum at the reference calibration point was evaluated from the calculations by MCNP4B and the measurements by the INS-type Bonner multi-sphere spectrometer and the hydrogen-filled proportional counters. The calculated neutron spectra were in good agreements with the measured ones. These fields were characterized in terms of the neutron fluence rate, spectral composition and ambient dose equivalent rate, and have served for the response-characterization of various neutron survey instruments

  16. Current status of research on power-frequency electric and magnetic fields of research

    International Nuclear Information System (INIS)

    Anon.

    1991-01-01

    Recent scientific literature has suggested a number of possible human health effects which might be associated with exposure to power frequency electric and magnetic fields. Several authoritative reviews of this subject have been published. currently, the major uncertainty and the major research effort is directed to the issue of these fields and cancer. Therefore, this review will be limited to examining the evidence relating prolonged power-frequency electric and magnetic field exposure to cancer in human populations. This paper reports that the CIGRE expert Group has assessed the research literature in the following areas: epidemiological evidence, animal studies, cellular effects, knowledge of mechanisms

  17. Testing Moderating Detection Systems with 252Cf-Based Reference Neutron Fields

    International Nuclear Information System (INIS)

    Hertel, Nolan E.; Sweezy, Jeremy; Sauber, Jeremiah S.; Vaughn, David; Cook, Andrew; Tays, Jeff; Ro, Tae-Ik

    2001-01-01

    Calibration measurements were carried out on a probe designed to measure ambient dose equivalent in accordance with ICRP Pub 60 recommendations. It consists of a cylindrical 3 He proportional counter surrounded by a 25-cm-diameter spherical polyethylene moderator. Its neutron response is optimized for dose rate measurements of neutrons between thermal energies and 20 MeV. The instrument was used to measure the dose rate in four separate neutron fields: unmoderated 252 Cf, D 2 O-moderated 252 Cf, polyethylene-moderated 252 Cf, and WEP neutron howitzer with 252 Cf at its center. Dose equivalent measurements were performed at source-detector centerline distances from 50 to 200 cm. The ratio of air-scatter- and room-return-corrected ambient dose equivalent rates to ambient dose equivalent rates calculated with the code MCNP are tabulated

  18. Journal of nano research 34 multi-functionality of nanoparticles in the fields of biomedicine and nanobioelectronics

    CERN Document Server

    Bhalerao, Anand

    2015-01-01

    The current special section includes a collection of six articles, one review and five research articles, by well established researchers. The synthesis methods along with the approaches for functionalization of nanomaterials for a range of biomedical applications reported in the special issue will add value to the existing literature in fields of Biomedicine as well as Nanobioelectronics. This book will prove to be a timely and valuable reference for researchers in this area. Keywords: Mechanical Properties, Materials Processing, Alloy, Materials Survey, Yield Stress

  19. An Organizational Perspective to the Creation of the Research Field.

    Science.gov (United States)

    Talamo, Alessandra; Mellini, Barbara; Camilli, Marco; Ventura, Stefano; Di Lucchio, Loredana

    2016-09-01

    The aim of the paper is to contribute to the definition and analysis of the "access to the field" (Feldman et al. 2003) through an inter-organizational perspective. The paper discusses a case study on the access of a researcher to a hospital department where both organizations and actors are shown as actively constructing the research site. Both researcher and participants are described in terms of work organizations originally engaged in parallel systems of activity. Dynamics of negotiation "tied" the different actors' activities in a new activity system where researcher and participants concur to the effectiveness of both organizations (i.e., the research and the hospital ward). An Activity Theory perspective (Leont'ev 1978) is used with the aim of focusing the analysis on the activities in charge to the different actors. The approach adopted introduces the idea that, from the outset, research is made possible by a process of co-construction that works through the development of a completely new and shared work space arising around the encounter between researchers and participants. It is the balance between improvised actions and the co-creation of "boundary objects" (Star and Griesemer 1989), which makes interlacement possible between the two activity systems. The concept of "knotworking" (Engeström 2007a) is adopted to interpret specific actions by both organizations and actors intended to build a knot of activities whereby the new research system takes place.

  20. Field research program for unsaturated flow and transport experimentation

    International Nuclear Information System (INIS)

    Tidwell, V.C.; Rautman, C.A.; Glass, R.J.

    1992-01-01

    As part of the Yucca Mountain Site Characterization Project, a field research program has been developed to refine and validate models for flow and transport through unsaturated fractured rock. Validation of these models within the range of their application for performance assessment requires a more sophisticated understanding of the processes that govern flow and transport within fractured porous media than currently exists. In particular, our research is prioritized according to understanding and modeling processes that, if not accurately incorporated into performance assessment models, would adversely impact the project's ability to evaluate repository performance. For this reason, we have oriented our field program toward enhancing our understanding of scaling processes as they relate to effective media property modeling, as well as to the conceptual modeling of complex flow and transport phenomena

  1. Valuing of research project in energy field with real options

    International Nuclear Information System (INIS)

    De Blasio, N.; Marzo, G.; Turatto, R.

    2008-01-01

    This article presents an application of real options theory for valuing a research project in the field of stranded gas valorisation. After a presentation of the theory, the analysis addresses the use of real options evaluation for generating alternative pathways in order to add new value to the R D projects. It also shows how real option approach may be important for selecting among competitive projects, but also for providing a system for valorisation of decision-maker flexibility [it

  2. Historical sketches of Sandia National Laboratories nuclear field testing. Volume 1: Full discussion except for sensitive references

    International Nuclear Information System (INIS)

    Banister, J.R.

    1994-10-01

    This report contains historical sketches that cover the major activities of Sandia nuclear field testing, from early atmospheric shots until 1990. It includes a chronological overview followed by more complete discussions of atmospheric, high-altitude, underwater, cratering, and underground nuclear testing. Other activities related to nuclear testing and high-explosive tests are also described. A large number of references are cited for readers who wish to learn more about technical details. Appendices, written by several authors, provide more insight for a variety of special aspects of nuclear testing and related work. Two versions of this history were published: volume 1 has an unlimited distribution, and volume 2 has a limited distribution

  3. Development of a reference database for ion beam analysis. Summary report of the first research coordination meeting

    International Nuclear Information System (INIS)

    Vickridge, I.; Schwerer, O.

    2006-01-01

    A summary is given of the First Research Coordination Meeting on the Development of a Reference Database for Ion Beam Analysis, including background information, objectives, recommendations for measurements, and a list of tasks assigned to participants. The next research co-ordination meeting will be held in May 2007. (author)

  4. Communication in superconductivity research: A study of scientific discoveries with particular reference to a developing country

    International Nuclear Information System (INIS)

    Chu, H.

    1991-01-01

    The main objective is to study the communications dimensions of China's contribution to the discovery of high-Tc superconductors. Chinese researchers of the field were compared with non-Chinese superconductivity scientists from developed countries to reveal similarities and differences in the formal as well as the informal domains of scholarly communication. 240 documents highly cited in a manually created Chinese data base and in Science Citation Index for the period of 1987-89 were examined to delineate the formal structure of communication in the area. Noteworthy similarities, e.g., similar cited cores, identical publication sources, and comparable intellectual structures of cocitation data, were found in formal communication between Chinese and non-Chinese scientists. Nevertheless, differences were also located in regard to citedness, timeliness and direction of communication. Findings reflect the role Chinese scientists played in the discovery of high-Tc superconductors. Chinese researchers overall did better in the formal domain than in the informal realm of scientific communication. Informal communication with scientists from advanced nations appears to be a very weak element in China's endeavors of searching for high-Tc superconductors

  5. 300 Area Integrated Field-Scale Subsurface Research Challenge (IFRC) Field Site Management Plan

    Energy Technology Data Exchange (ETDEWEB)

    Freshley, Mark D.

    2008-12-31

    Pacific Northwest National Laboratory (PNNL) has established the 300 Area Integrated Field-Scale Subsurface Research Challenge (300 Area IFRC) on the Hanford Site in southeastern Washington State for the U.S. Department of Energy’s (DOE) Office of Biological and Environmental Research (BER) within the Office of Science. The project is funded by the Environmental Remediation Sciences Division (ERSD). The purpose of the project is to conduct research at the 300 IFRC to investigate multi-scale mass transfer processes associated with a subsurface uranium plume impacting both the vadose zone and groundwater. The management approach for the 300 Area IFRC requires that a Field Site Management Plan be developed. This is an update of the plan to reflect the installation of the well network and other changes.

  6. First research coordination meeting on reference database for neutron activation analysis. Summary report

    International Nuclear Information System (INIS)

    Firestone, R.B.; Trkov, A.

    2005-10-01

    Potential problems associated with nuclear data for neutron activation analysis were identified, the scope of the work to be undertaken was defined together with its priorities, and tasks were assigned to participants. Data testing and measurements refer to gamma spectrum peak evaluations, detector efficiency calibration, neutron spectrum characteristics and reference materials analysis. (author)

  7. Making sense of business reference a guide for librarians and research professionals

    CERN Document Server

    Ross, Celia

    2013-01-01

    A detailed bibliography functions as both a standing reference for desk use as well as a collection development aid for building a core business collection. Including numerous illustrative case studies, Making Sense of Business Reference takes the guesswork out of doing business.

  8. Large field of view quantitative phase imaging of induced pluripotent stem cells and optical pathlength reference materials

    Science.gov (United States)

    Kwee, Edward; Peterson, Alexander; Stinson, Jeffrey; Halter, Michael; Yu, Liya; Majurski, Michael; Chalfoun, Joe; Bajcsy, Peter; Elliott, John

    2018-02-01

    Induced pluripotent stem cells (iPSCs) are reprogrammed cells that can have heterogeneous biological potential. Quality assurance metrics of reprogrammed iPSCs will be critical to ensure reliable use in cell therapies and personalized diagnostic tests. We present a quantitative phase imaging (QPI) workflow which includes acquisition, processing, and stitching multiple adjacent image tiles across a large field of view (LFOV) of a culture vessel. Low magnification image tiles (10x) were acquired with a Phasics SID4BIO camera on a Zeiss microscope. iPSC cultures were maintained using a custom stage incubator on an automated stage. We implement an image acquisition strategy that compensates for non-flat illumination wavefronts to enable imaging of an entire well plate, including the meniscus region normally obscured in Zernike phase contrast imaging. Polynomial fitting and background mode correction was implemented to enable comparability and stitching between multiple tiles. LFOV imaging of reference materials indicated that image acquisition and processing strategies did not affect quantitative phase measurements across the LFOV. Analysis of iPSC colony images demonstrated mass doubling time was significantly different than area doubling time. These measurements were benchmarked with prototype microsphere beads and etched-glass gratings with specified spatial dimensions designed to be QPI reference materials with optical pathlength shifts suitable for cell microscopy. This QPI workflow and the use of reference materials can provide non-destructive traceable imaging method for novel iPSC heterogeneity characterization.

  9. Children and adults exposed to electromagnetic fields at the ICNIRP reference levels: theoretical assessment of the induced peak temperature increase

    Energy Technology Data Exchange (ETDEWEB)

    Bakker, J F; Paulides, M M; Van Rhoon, G C [Erasmus MC-Daniel den Hoed Cancer Center, Department of Radiation Oncology, Section Hyperthermia, PO Box 5201, NL-3008 AE, Rotterdam (Netherlands); Neufeld, E; Christ, A; Kuster, N, E-mail: j.bakker@erasmusmc.nl [Foundation for Research on Information Technologies in Society (IT' IS) (Switzerland)

    2011-08-07

    To avoid potentially adverse health effects of electromagnetic fields (EMF), the International Commission on Non-Ionizing Radiation Protection (ICNIRP) has defined EMF reference levels. Restrictions on induced whole-body-averaged specific absorption rate (SAR{sub wb}) are provided to keep the whole-body temperature increase (T{sub body,incr}) under 1 deg. C during 30 min. Additional restrictions on the peak 10 g spatial-averaged SAR (SAR{sub 10g}) are provided to prevent excessive localized tissue heating. The objective of this study is to assess the localized peak temperature increase (T{sub incr,max}) in children upon exposure at the reference levels. Finite-difference time-domain modeling was used to calculate T{sub incr,max} in six children and two adults exposed to orthogonal plane-wave configurations. We performed a sensitivity study and Monte Carlo analysis to assess the uncertainty of the results. Considering the uncertainties in the model parameters, we found that a peak temperature increase as high as 1 deg. C can occur for worst-case scenarios at the ICNIRP reference levels. Since the guidelines are deduced from temperature increase, we used T{sub incr,max} as being a better metric to prevent excessive localized tissue heating instead of localized peak SAR. However, we note that the exposure time should also be considered in future guidelines. Hence, we advise defining limits on T{sub incr,max} for specified durations of exposure.

  10. Children and adults exposed to electromagnetic fields at the ICNIRP reference levels: theoretical assessment of the induced peak temperature increase.

    Science.gov (United States)

    Bakker, J F; Paulides, M M; Neufeld, E; Christ, A; Kuster, N; van Rhoon, G C

    2011-08-07

    To avoid potentially adverse health effects of electromagnetic fields (EMF), the International Commission on Non-Ionizing Radiation Protection (ICNIRP) has defined EMF reference levels. Restrictions on induced whole-body-averaged specific absorption rate (SAR(wb)) are provided to keep the whole-body temperature increase (T(body, incr)) under 1 °C during 30 min. Additional restrictions on the peak 10 g spatial-averaged SAR (SAR(10g)) are provided to prevent excessive localized tissue heating. The objective of this study is to assess the localized peak temperature increase (T(incr, max)) in children upon exposure at the reference levels. Finite-difference time-domain modeling was used to calculate T(incr, max) in six children and two adults exposed to orthogonal plane-wave configurations. We performed a sensitivity study and Monte Carlo analysis to assess the uncertainty of the results. Considering the uncertainties in the model parameters, we found that a peak temperature increase as high as 1 °C can occur for worst-case scenarios at the ICNIRP reference levels. Since the guidelines are deduced from temperature increase, we used T(incr, max) as being a better metric to prevent excessive localized tissue heating instead of localized peak SAR. However, we note that the exposure time should also be considered in future guidelines. Hence, we advise defining limits on T(incr, max) for specified durations of exposure.

  11. Influence of size of the ionization chamber in determination of the quality of an X-ray field of references

    International Nuclear Information System (INIS)

    Viana, R.N.; Cassiano, D.H.; Peixoto, J.G.P.

    2005-01-01

    The quality of an X-ray field of reference can be evaluated with the determination of the values of the first and second half-value layer - 1 st and 2 nd CSR, from measurements carried out with appropriate ionisation chambers. The acceptance criteria of ISO 4037-1 states that the values of 1 st and 2 nd CSR may not differ by more than -5% of the reference values. Procedures have been developed on X-ray equipment PANTAK, model HF160, adjusted to produce a field of 48 keV X-ray, to investigate the determination of the values of 1 st and 2 nd CSR with the use of different ionization chambers of varying volumes. The initial results indicate that the values of 1 st and 2 nd CSR are influenced by the size of the ionization chamber used, which suggests the determination of algorithm for the determination of a single value of 1 st and 2 nd CSR

  12. Mapping of radio frequency electromagnetic field exposure levels in outdoor environment and comparing with reference levels for general public health.

    Science.gov (United States)

    Cansiz, Mustafa; Abbasov, Teymuraz; Kurt, M Bahattin; Celik, A Recai

    2018-03-01

    In this study, radio frequency electromagnetic field exposure levels were measured on the main streets in the city center of Diyarbakır, Turkey. Measured electric field levels were plotted on satellite imagery of Diyarbakır and were compared with exposure guidelines published by the International Commission on Non-Ionizing Radiation Protection (ICNIRP). Exposure measurements were performed in dense urban, urban and suburban areas each day for 7 consecutive days. The measurement system consisted of high precision and portable spectrum analyzer, three-axis electric field antenna, connection cable and a laptop which was used to record the measurement samples as a data logger. The highest exposure levels were detected for two places, which are called Diclekent and Batıkent. It was observed that the highest instantaneous electric field strength value for Batıkent was 7.18 V/m and for Diclekent was 5.81 V/m. It was statistically determined that the main contributor band to the total exposure levels was Universal Mobile Telecommunications System band. Finally, it was concluded that all measured exposure levels were lower than the reference levels recommended by ICNIRP for general public health.

  13. Computer Based Procedures for Field Workers - FY16 Research Activities

    International Nuclear Information System (INIS)

    Oxstrand, Johanna; Bly, Aaron

    2016-01-01

    The Computer-Based Procedure (CBP) research effort is a part of the Light-Water Reactor Sustainability (LWRS) Program, which provides the technical foundations for licensing and managing the long-term, safe, and economical operation of current nuclear power plants. One of the primary missions of the LWRS program is to help the U.S. nuclear industry adopt new technologies and engineering solutions that facilitate the continued safe operation of the plants and extension of the current operating licenses. One area that could yield tremendous savings in increased efficiency and safety is in improving procedure use. A CBP provides the opportunity to incorporate context-driven job aids, such as drawings, photos, and just-in-time training. The presentation of information in CBPs can be much more flexible and tailored to the task, actual plant condition, and operation mode. The dynamic presentation of the procedure will guide the user down the path of relevant steps, thus minimizing time spent by the field worker to evaluate plant conditions and decisions related to the applicability of each step. This dynamic presentation of the procedure also minimizes the risk of conducting steps out of order and/or incorrectly assessed applicability of steps. This report provides a summary of the main research activities conducted in the Computer-Based Procedures for Field Workers effort since 2012. The main focus of the report is on the research activities conducted in fiscal year 2016. The activities discussed are the Nuclear Electronic Work Packages - Enterprise Requirements initiative, the development of a design guidance for CBPs (which compiles all insights gained through the years of CBP research), the facilitation of vendor studies at the Idaho National Laboratory (INL) Advanced Test Reactor (ATR), a pilot study for how to enhance the plant design modification work process, the collection of feedback from a field evaluation study at Plant Vogtle, and path forward to

  14. Computer Based Procedures for Field Workers - FY16 Research Activities

    Energy Technology Data Exchange (ETDEWEB)

    Oxstrand, Johanna [Idaho National Lab. (INL), Idaho Falls, ID (United States); Bly, Aaron [Idaho National Lab. (INL), Idaho Falls, ID (United States)

    2016-09-01

    The Computer-Based Procedure (CBP) research effort is a part of the Light-Water Reactor Sustainability (LWRS) Program, which provides the technical foundations for licensing and managing the long-term, safe, and economical operation of current nuclear power plants. One of the primary missions of the LWRS program is to help the U.S. nuclear industry adopt new technologies and engineering solutions that facilitate the continued safe operation of the plants and extension of the current operating licenses. One area that could yield tremendous savings in increased efficiency and safety is in improving procedure use. A CBP provides the opportunity to incorporate context-driven job aids, such as drawings, photos, and just-in-time training. The presentation of information in CBPs can be much more flexible and tailored to the task, actual plant condition, and operation mode. The dynamic presentation of the procedure will guide the user down the path of relevant steps, thus minimizing time spent by the field worker to evaluate plant conditions and decisions related to the applicability of each step. This dynamic presentation of the procedure also minimizes the risk of conducting steps out of order and/or incorrectly assessed applicability of steps. This report provides a summary of the main research activities conducted in the Computer-Based Procedures for Field Workers effort since 2012. The main focus of the report is on the research activities conducted in fiscal year 2016. The activities discussed are the Nuclear Electronic Work Packages – Enterprise Requirements initiative, the development of a design guidance for CBPs (which compiles all insights gained through the years of CBP research), the facilitation of vendor studies at the Idaho National Laboratory (INL) Advanced Test Reactor (ATR), a pilot study for how to enhance the plant design modification work process, the collection of feedback from a field evaluation study at Plant Vogtle, and path forward to

  15. IAEA activities in the field of research reactors safety

    International Nuclear Information System (INIS)

    Ciuculescu, C.; Boado Magan, H.J.

    2004-01-01

    IAEA activities in the field of research reactor safety are included in the programme of the Division of Nuclear Installations Safety. Following the objectives of the Division, the results of the IAEA missions and the recommendations from International Advisory Groups, the IAEA has conducted in recent years a certain number of activities aiming to enhance the safety of research reactors. The following activities will be presented: (a) the new Requirements for the Safety of Research Reactors, main features and differences with previous standards (SS-35-S1 and SS-35-S2) and the grading approach for implementation; (b) new documents being developed (safety guides, safety reports and TECDOC's); (c) activities related to the Incident Reporting System for Research Reactor (IRSRR); (d) the new features implemented for the INSARR missions; (e) the Code of Conduct on the Safety of Research Reactors adopted by the Board of Governors on 8 March 2004, following the General Conference Resolution GC(45)/RES/10; and (f) the survey on the safety of research reactors published on the IAEA website on February 2003 and the results obtained. (author)

  16. Joint research and evaluation work in the field of fire

    Energy Technology Data Exchange (ETDEWEB)

    Gonzalez, R.; Such, J.M.; Casselman, C. [CEA Cadarache, Institut de Protection et de Surete Nucleaire, Dept. de Recherches en Securite, 13 - Saint Paul Lez Durance (France); Laborde, J.C. [CEA Saclay, Dept. de Prevention et d' Etudes des Accidents, 91 - Gif sur Yvette (France); Bertrand, R.; Blot, M.; Chaussard, M.; Lacoue, J.; Mattei, J.M. [CEA Fontenay-aux-Roses, Dept d' Evaluation de Surete, 92 (France)

    2001-07-01

    In general, any assessment concerning the safety of nuclear facilities is based on acquired scientific knowledge. Nevertheless, some areas related to safety remain still inadequately explored, knowledge in these areas needs to be further developed either through the results obtained from studies or from experimental research. With the aim of achieving an optimal safety level, one of IPSN's main tasks is to highlight these gags in current knowledge and point out to nuclear facility operators the need to fill them. These general considerations are pertinent to the particular field of fire. At IPSN, safety assessment activities and research are carried out side-by-side, thus facilitating the implementation of corresponding research programs. This ability to orient research with respect to safety assessment requirements, the contribution of research scientists to safety assessment or the formulation of safety problems, are today counted among the strong points of IPSN operation. This paper presents also the present main fire risk safety concerns for Nuclear Power Plants and the associated research carried out by IPSN (past, underway and future) to improve the scientific knowledge in the related areas. (authors)

  17. Joint research and evaluation work in the field of fire

    International Nuclear Information System (INIS)

    Gonzalez, R.; Such, J.M.; Casselman, C.; Laborde, J.C.; Bertrand, R.; Blot, M.; Chaussard, M.; Lacoue, J.; Mattei, J.M.

    2001-01-01

    In general, any assessment concerning the safety of nuclear facilities is based on acquired scientific knowledge. Nevertheless, some areas related to safety remain still inadequately explored, knowledge in these areas needs to be further developed either through the results obtained from studies or from experimental research. With the aim of achieving an optimal safety level, one of IPSN's main tasks is to highlight these gags in current knowledge and point out to nuclear facility operators the need to fill them. These general considerations are pertinent to the particular field of fire. At IPSN, safety assessment activities and research are carried out side-by-side, thus facilitating the implementation of corresponding research programs. This ability to orient research with respect to safety assessment requirements, the contribution of research scientists to safety assessment or the formulation of safety problems, are today counted among the strong points of IPSN operation. This paper presents also the present main fire risk safety concerns for Nuclear Power Plants and the associated research carried out by IPSN (past, underway and future) to improve the scientific knowledge in the related areas. (authors)

  18. Deep Borehole Field Test Research Activities at LBNL

    Energy Technology Data Exchange (ETDEWEB)

    Dobson, Patrick [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Tsang, Chin-Fu [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Kneafsey, Timothy [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Borglin, Sharon [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Piceno, Yvette [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Andersen, Gary [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Nakagawa, Seiji [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Nihei, Kurt [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Rutqvist, Jonny [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Doughty, Christine [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Reagan, Matthew [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

    2016-08-19

    The goal of the U.S. Department of Energy Used Fuel Disposition’s (UFD) Deep Borehole Field Test is to drill two 5 km large-diameter boreholes: a characterization borehole with a bottom-hole diameter of 8.5 inches and a field test borehole with a bottom-hole diameter of 17 inches. These boreholes will be used to demonstrate the ability to drill such holes in crystalline rocks, effectively characterize the bedrock repository system using geophysical, geochemical, and hydrological techniques, and emplace and retrieve test waste packages. These studies will be used to test the deep borehole disposal concept, which requires a hydrologically isolated environment characterized by low permeability, stable fluid density, reducing fluid chemistry conditions, and an effective borehole seal. During FY16, Lawrence Berkeley National Laboratory scientists conducted a number of research studies to support the UFD Deep Borehole Field Test effort. This work included providing supporting data for the Los Alamos National Laboratory geologic framework model for the proposed deep borehole site, conducting an analog study using an extensive suite of geoscience data and samples from a deep (2.5 km) research borehole in Sweden, conducting laboratory experiments and coupled process modeling related to borehole seals, and developing a suite of potential techniques that could be applied to the characterization and monitoring of the deep borehole environment. The results of these studies are presented in this report.

  19. Deep Borehole Field Test Research Activities at LBNL

    International Nuclear Information System (INIS)

    Dobson, Patrick; Tsang, Chin-Fu; Kneafsey, Timothy; Borglin, Sharon; Piceno, Yvette; Andersen, Gary; Nakagawa, Seiji; Nihei, Kurt; Rutqvist, Jonny; Doughty, Christine; Reagan, Matthew

    2016-01-01

    The goal of the U.S. Department of Energy Used Fuel Disposition's (UFD) Deep Borehole Field Test is to drill two 5 km large-diameter boreholes: a characterization borehole with a bottom-hole diameter of 8.5 inches and a field test borehole with a bottom-hole diameter of 17 inches. These boreholes will be used to demonstrate the ability to drill such holes in crystalline rocks, effectively characterize the bedrock repository system using geophysical, geochemical, and hydrological techniques, and emplace and retrieve test waste packages. These studies will be used to test the deep borehole disposal concept, which requires a hydrologically isolated environment characterized by low permeability, stable fluid density, reducing fluid chemistry conditions, and an effective borehole seal. During FY16, Lawrence Berkeley National Laboratory scientists conducted a number of research studies to support the UFD Deep Borehole Field Test effort. This work included providing supporting data for the Los Alamos National Laboratory geologic framework model for the proposed deep borehole site, conducting an analog study using an extensive suite of geoscience data and samples from a deep (2.5 km) research borehole in Sweden, conducting laboratory experiments and coupled process modeling related to borehole seals, and developing a suite of potential techniques that could be applied to the characterization and monitoring of the deep borehole environment. The results of these studies are presented in this report.

  20. Total connectivity speeds research and support of field operations

    International Nuclear Information System (INIS)

    Himes, R.E.; Frost, K.I.; Henry, S.R.; Funkhouser, J.D.

    1992-01-01

    This paper reports that research and field support roles in the oilfield service industry have become increasingly complex in the last 15 years. Experimental apparatus are more dependent on the data-acquisition and processing capabilities of computers as the amount of data generated increases. Therefore, the need to network these computers for data transport has significantly increased. The type of network system selected depends on the goals to be achieved. Incorporation of existing equipment, communication between systems of different architectures, and future expandability are only a few of the necessary attributes. With these in mind, a computer network system was designed and is being implemented. The system combines local- and wide-area networks (LAN's or WAN's) of different protocols to acquire, process, and transport information worldwide. The result is faster development of new products and quicker response in support of field operations

  1. Research needs on the natural gas field in Finland

    International Nuclear Information System (INIS)

    Rutanen, V.

    1992-01-01

    This report deals with the research needs on natural gas sector in Finland during the next 5-10 years. 0n that ground it has also been drafted a proposal for organization of the research and on which fields the research should be directed. The basis and criterium in this study has been on the other hand, the improvement of the possibilities in international trade of finnish companies and on the other hand the improvement of the efficiency and the reduction of the environmental impacts of energy use and production in Finland. As a result of the study it is proposed that a research entireness, which will direct extensively towards the gaseous fuels (gasification of coal and biomass, natural gas, LPG, hydrogen), will be formed. The key topics of the research would be: Production of the gases (gasification), high-efficient power and heat generation with gaseous fuels, improvement of efficiency and reduction of environmental impacts of energy use in industry with direct use of gaseous fuels and gaseous fuels in vehicles

  2. About soil cover heterogeneity of agricultural research stations' experimental fields

    Science.gov (United States)

    Rannik, Kaire; Kõlli, Raimo; Kukk, Liia

    2013-04-01

    Depending on local pedo-ecological conditions (topography, (geo) diversity of soil parent material, meteorological conditions) the patterns of soil cover and plant cover determined by soils are very diverse. Formed in the course of soil-plant mutual relationship, the natural ecosystems are always influenced to certain extent by the other local soil forming conditions or they are site specific. The agricultural land use or the formation of agro-ecosystems depends foremost on the suitability of soils for the cultivation of feed and food crops. As a rule, the most fertile or the best soils of the area, which do not present any or present as little as possible constraints for agricultural land use, are selected for this purpose. Compared with conventional field soils, the requirements for the experimental fields' soil cover quality are much higher. Experimental area soils and soil cover composition should correspond to local pedo-ecological conditions and, in addition to that, represent the soil types dominating in the region, whereas the fields should be as homogeneous as possible. The soil cover heterogeneity of seven arable land blocks of three research stations (Jõgeva, Kuusiku and Olustvere) was studied 1) by examining the large scale (1:10 000) digital soil map (available via the internet), and 2) by field researches using the transect method. The stages of soils litho-genetic and moisture heterogeneities were estimated by using the Estonian normal soils matrix, however, the heterogeneity of top- and subsoil texture by using the soil texture matrix. The quality and variability of experimental fields' soils humus status, was studied more thoroughly from the aspect of humus concentration (g kg-1), humus cover thickness (cm) and humus stocks (Mg ha-1). The soil cover of Jõgeva experimental area, which presents an accumulative drumlin landscape (formed during the last glacial period), consist from loamy Luvisols and associated to this Cambisols. In Kuusiku area

  3. Science, Neutrality and Objectivity in Nuclear Research: Shared References or Ideal Types?

    International Nuclear Information System (INIS)

    Bovy, Michel; Laes, Erik; Eggermont, Gilbert

    2003-01-01

    Science, neutrality and objectivity in nuclear research are shared references because they can be considered as useful ideal types to support the communication process. This doesn't mean these references are empty, or have no effects on the organizational level. But the expert needs to recognize which type of justification he's ready to share with others (should it be peers or other social actors) because he has to share two types of communication process. The closure is less in the object than in the acceptance of a shared ideal world justification. While the expert uses the methodology of science to focus on the relevancy of some means, the layman requires being part of their communication process before the black box is closed, not becoming a scientist himself. The gap can be reduced by a combined effort to open up the communication process to each other based on a justification principle that cannot be mastered in advance by one side. This clearly show us democracy is not a question only debated in the governmental spheres but also in new kind of Parliaments allowing exchanges and open discussions removed from some pre-determined roles play. This requires time and sufficient room of manoeuvre from both sides. For example, it means interactions conditioned by the urgent necessity to make acceptable some technical depository solution for nuclear waste build some communication walls in terms of justification. The whole design process of society sometimes is at stake because of some inherited justification principles making science, independence and neutrality responsible for our welfare and safety. A solution could consist of using this framework in the beginning of the process and not in an attempt to stop controversies when results are needed (as a depository for nuclear waste). Another one could consist of enlarging the actor-network to more actors bringing more justification principles and varied interests. This won't be seen as a search for more order but a

  4. FAIMS Mobile: Flexible, open-source software for field research

    Science.gov (United States)

    Ballsun-Stanton, Brian; Ross, Shawn A.; Sobotkova, Adela; Crook, Penny

    2018-01-01

    FAIMS Mobile is a native Android application supported by an Ubuntu server facilitating human-mediated field research across disciplines. It consists of 'core' Java and Ruby software providing a platform for data capture, which can be deeply customised using 'definition packets' consisting of XML documents (data schema and UI) and Beanshell scripts (automation). Definition packets can also be generated using an XML-based domain-specific language, making customisation easier. FAIMS Mobile includes features allowing rich and efficient data capture tailored to the needs of fieldwork. It also promotes synthetic research and improves transparency and reproducibility through the production of comprehensive datasets that can be mapped to vocabularies or ontologies as they are created.

  5. Electric Field Encephalography as a tool for functional brain research: a modeling study.

    Directory of Open Access Journals (Sweden)

    Yury Petrov

    Full Text Available We introduce the notion of Electric Field Encephalography (EFEG based on measuring electric fields of the brain and demonstrate, using computer modeling, that given the appropriate electric field sensors this technique may have significant advantages over the current EEG technique. Unlike EEG, EFEG can be used to measure brain activity in a contactless and reference-free manner at significant distances from the head surface. Principal component analysis using simulated cortical sources demonstrated that electric field sensors positioned 3 cm away from the scalp and characterized by the same signal-to-noise ratio as EEG sensors provided the same number of uncorrelated signals as scalp EEG. When positioned on the scalp, EFEG sensors provided 2-3 times more uncorrelated signals. This significant increase in the number of uncorrelated signals can be used for more accurate assessment of brain states for non-invasive brain-computer interfaces and neurofeedback applications. It also may lead to major improvements in source localization precision. Source localization simulations for the spherical and Boundary Element Method (BEM head models demonstrated that the localization errors are reduced two-fold when using electric fields instead of electric potentials. We have identified several techniques that could be adapted for the measurement of the electric field vector required for EFEG and anticipate that this study will stimulate new experimental approaches to utilize this new tool for functional brain research.

  6. Control of the surface radioactive contamination in the field of biological research

    International Nuclear Information System (INIS)

    Calvo, S.; Encina, A. de la; Gaspar, J.; Macias, M. T.; Sanchez, A.; Usera, F.

    2012-01-01

    The manipulation of unsealed sources in biomedical research involves significant risk of radioactive contamination. the aim of this study has been to analyze the radioactive contamination occurring in the field of biomedical research, assessing its magnitude, identifying the equipment that can be contaminated with higher probability and monitoring the evolution of the contaminations production taking into account the radioisotopes and the activities uses, and the radiation protection control applied. The data used for this study correspond to a very lengthy period of time and it have been collected in the radioactive facility, of the Centro Nacional de Biotecnologia (CSIC), a very large biological research centre that can be used perfectly as a reference for this area. The results obtained show a gradual and significant decrease in the incidence of the radioactive contamination. This is due to the optimization of radiation protection standards applied and the implementation or a systematic operational radiation protection program. (Author) 13 refs.

  7. Taxonomic reference libraries for environmental barcoding: a best practice example from diatom research.

    Directory of Open Access Journals (Sweden)

    Jonas Zimmermann

    Full Text Available DNA barcoding uses a short fragment of a DNA sequence to identify a taxon. After obtaining the target sequence it is compared to reference sequences stored in a database to assign an organism name to it. The quality of data in the reference database is the key to the success of the analysis. In the here presented study, multiple types of data have been combined and critically examined in order to create best practice guidelines for taxonomic reference libraries for environmental barcoding. 70 unialgal diatom strains from Berlin waters have been established and cultured to obtain morphological and molecular data. The strains were sequenced for 18S V4 rDNA (the pre-Barcode for protists as well as rbcL data, and identified by microscopy. LM and for some strains also SEM pictures were taken and physical vouchers deposited at the BGBM. 37 freshwater taxa from 15 naviculoid diatom genera were identified. Four taxa from the genera Amphora, Mayamaea, Planothidium and Stauroneis are described here as new. Names, molecular, morphological and habitat data as well as additional images of living cells are also available electronically in the AlgaTerra Information System. All reference sequences (or reference barcodes presented here are linked to voucher specimens in order to provide a complete chain of evidence back to the formal taxonomic literature.

  8. Practical methods for generating alternating magnetic fields for biomedical research

    Science.gov (United States)

    Christiansen, Michael G.; Howe, Christina M.; Bono, David C.; Perreault, David J.; Anikeeva, Polina

    2017-08-01

    Alternating magnetic fields (AMFs) cause magnetic nanoparticles (MNPs) to dissipate heat while leaving surrounding tissue unharmed, a mechanism that serves as the basis for a variety of emerging biomedical technologies. Unfortunately, the challenges and costs of developing experimental setups commonly used to produce AMFs with suitable field amplitudes and frequencies present a barrier to researchers. This paper first presents a simple, cost-effective, and robust alternative for small AMF working volumes that uses soft ferromagnetic cores to focus the flux into a gap. As the experimental length scale increases to accommodate animal models (working volumes of 100s of cm3 or greater), poor thermal conductivity and volumetrically scaled core losses render that strategy ineffective. Comparatively feasible strategies for these larger volumes instead use low loss resonant tank circuits to generate circulating currents of 1 kA or greater in order to produce the comparable field amplitudes. These principles can be extended to the problem of identifying practical routes for scaling AMF setups to humans, an infrequently acknowledged challenge that influences the extent to which many applications of MNPs may ever become clinically relevant.

  9. Lessons in collaboration and effective field research from the Appalachian Headwaters Research Experience for Undergraduates Program

    Science.gov (United States)

    Jones, A. L.; Fox, J.; Wilder, M. S.

    2009-12-01

    In the summer of 2009, the authors launched year one of a three-year National Science Foundation-funded Research Experience for Undergraduates entitled "Carbon Storage and Headwater Health in the Appalachian Headwaters." Eight undergraduates selected from a nationally competitive field of more than 60 applicants participated in the ten-week field- and laboratory-based program along with three middle- and high-school teachers. Each student developed and completed an independent research project related to coal mining’s impact on soil organic carbon and sediment transport processes. Specifically, they used isotope ratio mass spectrometry to measure the carbon and nitrogen stable isotopic signature of soils and sediments in the Appalachian headwater landscapes and first order streams of Kentucky's southeastern coalfields. Among the program's innovative features was its fundamentally collaborative nature--which was represented in several ways. First, the background of the three program leaders was very different: an environmental planner with an academic background in land use planning and administration (Jones); a civil engineer trained in biogeochemistry and watershed modeling (Fox); and an environmental educator experienced in both formal and nonformal educator training and certification (Wilder). The program was also a collaboration between a Carnegie 1 research-oriented institution and an undergraduate/ teaching -focused regional comprehensive university. Finally, the participants themselves represented a diversity of disciplines and institutional backgrounds--including biology, geology, chemistry, environmental science and civil engineering. The Research Experience for Teachers component was another innovative program element. The teachers participated in all field and laboratory research activities during the first six weeks, then developed a unit of study for their own classrooms to be implemented during the current school year. In addition to the six

  10. Latin American research and development in the energy field

    International Nuclear Information System (INIS)

    Torres, J.E.

    1984-08-01

    This report is divided into six main sections. The first outlines the conceptual framework and methodology stressing the limitations that impede greater depth of analysis. The second, on the types and directions of research and development (R and D) activities in Latin America, is divided into three subsections, covering New and Renewable Sources of Energy (NRSE); conventional energy (including nuclear energy); and integrated energy resource R and D (primarily energy conservation and substitution, as well as energy policy and planning studies). In each subsection, I endeavoured to describe and critically assess R and D activities, achievements, and failures within the context of the limitations. Conclusions and recommendations in each case are implicitly or explicitly made depending on the field. In the third section, the state of science and technology policy on energy resources is presented. The fourth section draws together the conclusions and recommendations on further work to be done. The fifth section is a bibliography of 64 annotated and 52 unannotated items and the sixth, an appendix, is a directory of people working in the field of energy research

  11. Mixed-field GCR Simulations for Radiobiological Research using Ground Based Accelerators

    Science.gov (United States)

    Kim, Myung-Hee Y.; Rusek, Adam; Cucinotta, Francis

    Space radiation is comprised of a large number of particle types and energies, which have differential ionization power from high energy protons to high charge and energy (HZE) particles and secondary neutrons produced by galactic cosmic rays (GCR). Ground based accelerators such as the NASA Space Radiation Laboratory (NSRL) at Brookhaven National Laboratory (BNL) are used to simulate space radiation for radiobiology research and dosimetry, electronics parts, and shielding testing using mono-energetic beams for single ion species. As a tool to support research on new risk assessment models, we have developed a stochastic model of heavy ion beams and space radiation effects, the GCR Event-based Risk Model computer code (GERMcode). For radiobiological research on mixed-field space radiation, a new GCR simulator at NSRL is proposed. The NSRL-GCR simulator, which implements the rapid switching mode and the higher energy beam extraction to 1.5 GeV/u, can integrate multiple ions into a single simulation to create GCR Z-spectrum in major energy bins. After considering the GCR environment and energy limitations of NSRL, a GCR reference field is proposed after extensive simulation studies using the GERMcode. The GCR reference field is shown to reproduce the Z and LET spectra of GCR behind shielding within 20 percents accuracy compared to simulated full GCR environments behind shielding. A major challenge for space radiobiology research is to consider chronic GCR exposure of up to 3-years in relation to simulations with cell and animal models of human risks. We discuss possible approaches to map important biological time scales in experimental models using ground-based simulation with extended exposure of up to a few weeks and fractionation approaches at a GCR simulator.

  12. Annual Report for 2003 Wild Horse Research and Field Activities

    Science.gov (United States)

    Ransom, Jason; Singer, Francis J.; Zeigenfuss, Linda C.

    2004-01-01

    As stated in the Wild Horse Fertility Control Field Trial Plan, the Bureau of Land Management (BLM) has an immediate need for a safe, effective contraceptive agent to assist in the management of the large number of wild horses on western rangelands. The BLM and the U.S. Geological Survey-Biological Resources Discipline (USGS/BRD) are testing the immunocontraceptive agent Porcine Zonae Pellucida (PZP) in field trials with three free-roaming herds of western wild horses. Extensive research has already been conducted on the safety, efficacy, and duration of PZP applications in both domestic and feral horses on eastern barrier islands and in some select trials I with wild horses in Nevada managed by the BLM. However, significant questions remain concerning the effects of I PZP application at the population level in the wild, as well as effects at the individual level on behavior, social structure, and harem dynamics of free-ranging animals. These questions are best answered with field trials on wild horse herds under a tight research protocol. The ultimate goal is to provide the BLM with the protocols and information necessary to begin using fertility control to regulate population growth rates in wild horse herds on a broader scale. Fertility control is intended to assist the conventional capture, removal, and adoption process as a I means of controlling excess numbers of wild horses and burros, and to greatly reduce the adoption costs and numbers of animals handled. Fertility control is not intended to totally replace the removal and adoption process.

  13. Reliability of different mark-recapture methods for population size estimation tested against reference population sizes constructed from field data.

    Directory of Open Access Journals (Sweden)

    Annegret Grimm

    Full Text Available Reliable estimates of population size are fundamental in many ecological studies and biodiversity conservation. Selecting appropriate methods to estimate abundance is often very difficult, especially if data are scarce. Most studies concerning the reliability of different estimators used simulation data based on assumptions about capture variability that do not necessarily reflect conditions in natural populations. Here, we used data from an intensively studied closed population of the arboreal gecko Gehyra variegata to construct reference population sizes for assessing twelve different population size estimators in terms of bias, precision, accuracy, and their 95%-confidence intervals. Two of the reference populations reflect natural biological entities, whereas the other reference populations reflect artificial subsets of the population. Since individual heterogeneity was assumed, we tested modifications of the Lincoln-Petersen estimator, a set of models in programs MARK and CARE-2, and a truncated geometric distribution. Ranking of methods was similar across criteria. Models accounting for individual heterogeneity performed best in all assessment criteria. For populations from heterogeneous habitats without obvious covariates explaining individual heterogeneity, we recommend using the moment estimator or the interpolated jackknife estimator (both implemented in CAPTURE/MARK. If data for capture frequencies are substantial, we recommend the sample coverage or the estimating equation (both models implemented in CARE-2. Depending on the distribution of catchabilities, our proposed multiple Lincoln-Petersen and a truncated geometric distribution obtained comparably good results. The former usually resulted in a minimum population size and the latter can be recommended when there is a long tail of low capture probabilities. Models with covariates and mixture models performed poorly. Our approach identified suitable methods and extended options to

  14. Report of the research co-ordination meeting on reference materials for microanalytical nuclear techniques

    International Nuclear Information System (INIS)

    1994-01-01

    Many microanalytical procedure require specific natural-matrix reference materials containing very low levels of trace elements and having a high degree of homogeneity. This proposed CRP will specifically address the question of quality control materials for these techniques. The participants of the meeting discussed the requirements for certified reference materials to by used in microanalysis with particular emphasis on the homogeneity issues. This publication contains summary of the discussions along with conclusions and recommendations made by the participants. The publication also contains 13 individual presentations delivered by the participants. Each of the individual papers has been provided with an abstract and indexed separately

  15. Report of the research co-ordination meeting on reference materials for microanalytical nuclear techniques

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1994-07-01

    Many microanalytical procedure require specific natural-matrix reference materials containing very low levels of trace elements and having a high degree of homogeneity. This proposed CRP will specifically address the question of quality control materials for these techniques. The participants of the meeting discussed the requirements for certified reference materials to by used in microanalysis with particular emphasis on the homogeneity issues. This publication contains summary of the discussions along with conclusions and recommendations made by the participants. The publication also contains 13 individual presentations delivered by the participants. Each of the individual papers has been provided with an abstract and indexed separately.

  16. [Reference citation].

    Science.gov (United States)

    Brkić, Silvija

    2013-01-01

    Scientific and professional papers represent the information basis for scientific research and professional work. References important for the paper should be cited within the text, and listed at the end of the paper. This paper deals with different styles of reference citation. Special emphasis was placed on the Vancouver Style for reference citation in biomedical journals established by the International Committee of Medical Journal Editors. It includes original samples for citing various types of articles, both printed and electronic, as well as recommendations related to reference citation in accordance with the methodology and ethics of scientific research and guidelines for preparing manuscripts for publication.

  17. Microarray-based comparative genomic profiling of reference strains and selected Canadian field isolates of Actinobacillus pleuropneumoniae

    Directory of Open Access Journals (Sweden)

    MacInnes Janet I

    2009-02-01

    Full Text Available Abstract Background Actinobacillus pleuropneumoniae, the causative agent of porcine pleuropneumonia, is a highly contagious respiratory pathogen that causes severe losses to the swine industry worldwide. Current commercially-available vaccines are of limited value because they do not induce cross-serovar immunity and do not prevent development of the carrier state. Microarray-based comparative genomic hybridizations (M-CGH were used to estimate whole genomic diversity of representative Actinobacillus pleuropneumoniae strains. Our goal was to identify conserved genes, especially those predicted to encode outer membrane proteins and lipoproteins because of their potential for the development of more effective vaccines. Results Using hierarchical clustering, our M-CGH results showed that the majority of the genes in the genome of the serovar 5 A. pleuropneumoniae L20 strain were conserved in the reference strains of all 15 serovars and in representative field isolates. Fifty-eight conserved genes predicted to encode for outer membrane proteins or lipoproteins were identified. As well, there were several clusters of diverged or absent genes including those associated with capsule biosynthesis, toxin production as well as genes typically associated with mobile elements. Conclusion Although A. pleuropneumoniae strains are essentially clonal, M-CGH analysis of the reference strains of the fifteen serovars and representative field isolates revealed several classes of genes that were divergent or absent. Not surprisingly, these included genes associated with capsule biosynthesis as the capsule is associated with sero-specificity. Several of the conserved genes were identified as candidates for vaccine development, and we conclude that M-CGH is a valuable tool for reverse vaccinology.

  18. Detection of a Bacteriophage Gene Encoding a Mu-like Portal Protein in Haemophilus parasuis Reference Strains and Field Isolates by Nested Polymerase Chain Reaction

    Science.gov (United States)

    A nested PCR assay was developed to determine the presence of a gene encoding a bacteriophage Mu-like portal protein, gp29, in 15 reference strains and 31 field isolates of Haemophilus parasuis. Specific primers, based on the gene’s sequence, were utilized. A majority of the virulent reference strai...

  19. 参考区间的研究进展%Research Progress of the reference interval

    Institute of Scientific and Technical Information of China (English)

    李小东; 王文瑞

    2015-01-01

    ABSTRACT:The biological reference interval not only exists in different laboratories, individual and geographical background operation, also the inlfuenced of different by way of life,in the natural environment and social environment, So to establish the biological reference interval is very important for understanding a nation’s disease diagnosis, treatment and prevention. This paper from many aspects -the basic concept andcurrent study andformulate procedures and methods and matters needing attention and validation and transfer of the reference interval and so on,to introduc the biological reference interval.%生物参考区间不但存在不同实验室的操作背景、个体和地域差异,也受不同生活方式、身处的自然环境与社会环境的影响,因此制定具有针对性的参考区间对于一个国家的疾病诊断、治疗与预防具有十分重要的意义,本文从基本概念、研究现状、制定步骤与方法、注意事项、验证与转移等方面介绍生物参考区间的研究进展。

  20. The CERN-EU high-energy reference field (CERF) facility for dosimetry at commercial flight altitudes and in space.

    Science.gov (United States)

    Mitaroff, A; Cern, M Silari

    2002-01-01

    A reference facility for the calibration and intercomparison of active and passive detectors in broad neutron fields has been available at CERN since 1992. A positively charged hadron beam (a mixture of protons and pions) with momentum of 120 GeV/c hits a copper target, 50 cm thick and 7 cm in diameter. The secondary particles produced in the interaction traverse a shield, at 90 degrees with respect to the direction of the incoming beam. made of either 80 to 160 cm of concrete or 40 cm of iron. Behind the iron shield, the resulting neutron spectrum has a maximum at about 1 MeV, with an additional high-energy component. Behind the 80 cm concrete shield, the neutron spectrum has a second pronounced maximum at about 70 MeV and resembles the high-energy component of the radiation field created by cosmic rays at commercial flight altitudes. This paper describes the facility, reports on the latest neutron spectral measurements, gives an overview of the most important experiments performed by the various collaborating institutions over recent years and briefly addresses the possible application of the facility to measurements related to the space programme.

  1. Investigation of the response characteristics of OSL albedo neutron dosimeters in a 241AmBe reference neutron field

    Science.gov (United States)

    Liamsuwan, T.; Wonglee, S.; Channuie, J.; Esoa, J.; Monthonwattana, S.

    2017-06-01

    The objective of this work was to systematically investigate the response characteristics of optically stimulated luminescence Albedo neutron (OSLN) dosimeters to ensure reliable personal dosimetry service provided by Thailand Institute of Nuclear Technology (TINT). Several batches of InLight® OSLN dosimeters were irradiated in a reference neutron field generated by the in-house 241AmBe neutron irradiator. The OSL signals were typically measured 24 hours after irradiation using the InLight® Auto 200 Reader. Based on known values of delivered neutron dose equivalent, the reading correction factor to be used by the reader was evaluated. Subsequently, batch homogeneity, dose linearity, lower limit of detection and fading of the OSLN dosimeters were examined. Batch homogeneity was evaluated to be 0.12 ± 0.05. The neutron dose response exhibited a linear relationship (R2=0.9974) within the detectable neutron dose equivalent range under test (0.4-3 mSv). For this neutron field, the lower limit of detection was between 0.2 and 0.4 mSv. Over different post-irradiation storage times of up to 180 days, the readings fluctuated within ±5%. Personal dosimetry based on the investigated OSLN dosimeter is considered to be reliable under similar neutron exposure conditions, i.e. similar neutron energy spectra and dose equivalent values.

  2. The CERN-EU high-energy reference field (CERF) facility for dosimetry at commercial flight altitudes and in space

    CERN Document Server

    Mitaroff, Angela

    2002-01-01

    A reference facility for the calibration and intercomparison of active and passive detectors in broad neutron fields has been available at CERN since 1992. A positively charged hadron beam (a mixture of protons and pions) with momentum of 120 GeV/c hits a copper target, 50 cm thick and 7 cut in diameter. The secondary particles produced in the interaction traverse a shield, at 90 degrees with respect to the direction of the incoming beam, made of either 80 to 160 cm of concrete or 40 cm of iron. Behind the iron shield, the resulting neutron spectrum has a maximum at about 1 MeV, with an additional high-energy component. Behind the 80 cm concrete shield, the neutron spectrum has a second pronounced maximum at about 70 MeV and resembles the high-energy component of the radiation field created by cosmic rays at commercial flight altitudes. This paper describes the facility, reports on the latest neutron spectral measurements, gives an overview of the most important experiments performed by the various collaborat...

  3. Reference neutron radiations. Part 2: Calibration fundamentals of radiation protection devices related to the basic quantities characterizing the radiation field

    International Nuclear Information System (INIS)

    2000-01-01

    ISO 8529 consists of the following parts, under the general title Reference neutron radiations: Part 1: Characteristics and methods of production; Part 2: Calibration fundamentals of radiation protection devices related to the basic quantities characterizing the radiation field; Part 3: Calibration of area and personal dosimeters and determination of response as a function of energy and angle of incidence. This Part 2. of ISO 8529 takes as its starting point the neutron sources described in ISO 8529-1. It specifies the procedures to be used for realizing the calibration conditions of radiation protection devices in neutron fields produced by these calibration sources, with particular emphasis on the corrections for extraneous effects (e.g., the neutrons scattered from the walls of the calibration room). In this part of ISO 8529, particular emphasis is placed on calibrations using radionuclide sources (clauses 4 to 6) due to their widespread application, with less details given on the use of accelerator and reactor sources (8.2 and 8.3). This part of ISO 8529 then leads to ISO 8529-3 which gives conversion coefficients and the general rules and procedures for calibration

  4. Application research of computational mass-transfer differential equation in MBR concentration field simulation.

    Science.gov (United States)

    Li, Chunqing; Tie, Xiaobo; Liang, Kai; Ji, Chanjuan

    2016-01-01

    After conducting the intensive research on the distribution of fluid's velocity and biochemical reactions in the membrane bioreactor (MBR), this paper introduces the use of the mass-transfer differential equation to simulate the distribution of the chemical oxygen demand (COD) concentration in MBR membrane pool. The solutions are as follows: first, use computational fluid dynamics to establish a flow control equation model of the fluid in MBR membrane pool; second, calculate this model by adopting direct numerical simulation to get the velocity field of the fluid in membrane pool; third, combine the data of velocity field to establish mass-transfer differential equation model for the concentration field in MBR membrane pool, and use Seidel iteration method to solve the equation model; last but not least, substitute the real factory data into the velocity and concentration field model to calculate simulation results, and use visualization software Tecplot to display the results. Finally by analyzing the nephogram of COD concentration distribution, it can be found that the simulation result conforms the distribution rule of the COD's concentration in real membrane pool, and the mass-transfer phenomenon can be affected by the velocity field of the fluid in membrane pool. The simulation results of this paper have certain reference value for the design optimization of the real MBR system.

  5. Collaborative field research and training in occupational health and ergonomics.

    Science.gov (United States)

    Kogi, K

    1998-01-01

    Networking collaborative research and training in Asian developing countries includes three types of joint activities: field studies of workplace potentials for better safety and health, intensive action training for improvement of working conditions in small enterprises, and action-oriented workshops on low-cost improvements for managers, workers, and farmers. These activities were aimed at identifying workable strategies for making locally adjusted improvements in occupational health and ergonomics. Many improvements have resulted as direct outcomes. Most these improvements were multifaceted, low-cost, and practicable using local skills. Three common features of these interactive processes seem important in facilitating realistic improvements: 1) voluntary approaches building on local achievements; 2) the use of practical methods for identifying multiple improvements; and 3) participatory steps for achieving low-cost results first. The effective use of group work tools is crucial. Stepwise training packages have thus proven useful for promoting local problem-solving interventions based on voluntary initiatives.

  6. 75 FR 45627 - Office of Research and Development; Ambient Air Monitoring Reference and Equivalent Methods...

    Science.gov (United States)

    2010-08-03

    ... Research and Development on March 30, 2010. The analytical procedure of this method has been tested in... Protection Agency, Research Triangle Park, North Carolina 27711. Designation of this new equivalent method is... ENVIRONMENTAL PROTECTION AGENCY [FRL-9184-5] Office of Research and Development; Ambient Air...

  7. Evaluation of local electric fields generated by transcranial direct current stimulation with an extracephalic reference electrode based on realistic 3D body modeling

    Science.gov (United States)

    Im, Chang-Hwan; Park, Ji-Hye; Shim, Miseon; Chang, Won Hyuk; Kim, Yun-Hee

    2012-04-01

    In this study, local electric field distributions generated by transcranial direct current stimulation (tDCS) with an extracephalic reference electrode were evaluated to address extracephalic tDCS safety issues. To this aim, we generated a numerical model of an adult male human upper body and applied the 3D finite element method to electric current conduction analysis. In our simulations, the active electrode was placed over the left primary motor cortex (M1) and the reference electrode was placed at six different locations: over the right temporal lobe, on the right supraorbital region, on the right deltoid, on the left deltoid, under the chin, and on the right buccinator muscle. The maximum current density and electric field intensity values in the brainstem generated by the extracephalic reference electrodes were comparable to, or even less than, those generated by the cephalic reference electrodes. These results suggest that extracephalic reference electrodes do not lead to unwanted modulation of the brainstem cardio-respiratory and autonomic centers, as indicated by recent experimental studies. The volume energy density was concentrated at the neck area by the use of deltoid reference electrodes, but was still smaller than that around the active electrode locations. In addition, the distributions of elicited cortical electric fields demonstrated that the use of extracephalic reference electrodes might allow for the robust prediction of cortical modulations with little dependence on the reference electrode locations.

  8. Research on the Flow Field and Structure Optimization in Cyclone Separator with Downward Exhaust Gas

    Directory of Open Access Journals (Sweden)

    Wang Weiwei

    2017-01-01

    Full Text Available A numerical software analysis of the turbulent and strongly swirling flow field of a cyclone separator with downward exhaust gas and its performances is described. The ANSYS 14.0 simulations based on DPM model are also used in the investigation. A new set of geometrical design has been optimized to achieve minimum pressure drop and maximum separation efficiency. A comparison of numerical simulation of the new design confirm the superior performance of the new design compared to the conventional design. The influence of the structure parameters such as the length of the guide pipe, the shape of the guide, the inlet shape on the separation performance was analyzed in this research. This research result has certain reference value for cyclone separator design and performance optimization.

  9. How Do Trend Researchers Conduct Research? The Production of Knowledge in a Controversial Field

    Directory of Open Access Journals (Sweden)

    Michaela Pfadenhauer

    2004-05-01

    Full Text Available The planned research project described in this article focuses on the methods of trend research—not only in a narrow literal sense of techniques of data collection and data evaluation but also in a broader understanding of the logic of knowledge production in this controversial field. Initially trend research can be appointed between market research on the one hand and futurology on the other hand. Criticism regarding trend research as well as its innovative potential is also mentioned. Following the recent studies, trend research is conceived as application-oriented research in a broad sense. As far as the methodology is concerned, the proposed study promises to be an empirically-founded contribution by integrating analysis from sources such as explorative and focused conversations, observations and expert interviews. The study uses the example of trend research and asks the question how research is actually "done" and if it is application oriented or not. URN: urn:nbn:de:0114-fqs0402366

  10. Natural and Accelerated Bioremediation Research (NABIR) Field Research Center (FRC), Oak Ridge Tennessee

    International Nuclear Information System (INIS)

    Watson, David; Jardine, Philip; Gu, Baohua; Parker, Jack; Brandt, Craig; Holladay, Susan; Wolfe, Amy; Bogle, Mary Anna; Lowe, Kenneth; Hyder, Kirk

    2006-01-01

    The Field Research Center (FRC) in Oak Ridge (Fig. 1), Tennessee supports the U.S. Department of Energy's (DOE's) Environmental Remediation Sciences Program (ERSP) goal of understanding the complex physical, chemical, and biological properties of contaminated sites for new solutions to environmental remediation and long-term stewardship. In particular, the FRC provides the opportunity for researchers to conduct studies that promote the understanding of the processes that influence the transport and fate of subsurface contaminants, the effectiveness and long-term consequences of existing remediation options, and the development of improved remediation strategies. It offers a series of contaminated sites around the former S-3 Waste Disposal Ponds and uncontaminated sites in which investigators and students conduct field research or collect samples for laboratory analysis. FRC research also spurs the development of new and improved characterization and monitoring tools. Site specific knowledge gained from research conducted at the FRC also provides the DOE-Oak Ridge Office of Environmental Management (EM) the critical scientific knowledge needed to make cleanup decisions for the S-3 Ponds and other sites on the Oak Ridge Reservation (ORR)

  11. Guidelines for the review research reactor safety. Reference document for IAEA Integrated Safety Assessment of Research Reactors (INSARR)

    International Nuclear Information System (INIS)

    1997-01-01

    In 1992, the IAEA published new safety standards for research reactors as part of the set of publications considered by its Research Reactor Safety Programme (RRSP). This set also includes publications giving guidance for all safety aspects related to the lifetime of a research reactor. In addition, the IAEA has also revised the Safety Standards for radiation protection. Consequently, it was considered advisable to revise the Integrated Safety Assessment of Research Reactors (INSARR) procedures to incorporate the new requirements and guidance as well as to extend the scope of the safety reviews to currently operating research reactors. The present report is the result of this revision. The purpose of this report is to give guidance on the preparation, execution, reporting and follow-up of safety review mission to research reactors as conducted by the IAEA under its INSARR missions safety service. However, it will also be of assistance to operators and regulators in conducting: (a) ad hoc safety assessments of research reactors to address individual issues such as ageing or safety culture; and (b) other types of safety reviews such as internal and peer reviews and regulatory inspections

  12. Design and validation of an open-source library of dynamic reference frames for research and education in optical tracking.

    Science.gov (United States)

    Brown, Alisa; Uneri, Ali; Silva, Tharindu De; Manbachi, Amir; Siewerdsen, Jeffrey H

    2018-04-01

    Dynamic reference frames (DRFs) are a common component of modern surgical tracking systems; however, the limited number of commercially available DRFs poses a constraint in developing systems, especially for research and education. This work presents the design and validation of a large, open-source library of DRFs compatible with passive, single-face tracking systems, such as Polaris stereoscopic infrared trackers (NDI, Waterloo, Ontario). An algorithm was developed to create new DRF designs consistent with intra- and intertool design constraints and convert to computer-aided design (CAD) files suitable for three-dimensional printing. A library of 10 such groups, each with 6 to 10 DRFs, was produced and tracking performance was validated in comparison to a standard commercially available reference, including pivot calibration, fiducial registration error (FRE), and target registration error (TRE). Pivot tests showed calibration error [Formula: see text], indistinguishable from the reference. FRE was [Formula: see text], and TRE in a CT head phantom was [Formula: see text], both equivalent to the reference. The library of DRFs offers a useful resource for surgical navigation research and could be extended to other tracking systems and alternative design constraints.

  13. Mentoring to develop research selfefficacy, with particular reference to previously disadvantaged individuals

    Directory of Open Access Journals (Sweden)

    S. Schulze

    2010-07-01

    Full Text Available The development of inexperienced researchers is crucial. In response to the lack of research self-efficacy of many previously disadvantaged individuals, the article examines how mentoring can enhance the research self-efficacy of mentees. The study is grounded in the self-efficacy theory (SET – an aspect of the social cognitive theory (SCT. Insights were gained from an in-depth study of SCT, SET and mentoring, and from a completed mentoring project. This led to the formulation of three basic principles. Firstly, institutions need to provide supportive environmental conditions that facilitate research selfefficacy. This implies a supportive and efficient collective system. The possible effects of performance ratings and reward systems at the institution also need to be considered. Secondly, mentoring needs to create opportunities for young researchers to experience successful learning as a result of appropriate action. To this end, mentees need to be involved in actual research projects in small groups. At the same time the mentor needs to facilitate skills development by coaching and encouragement. Thirdly, mentors need to encourage mentees to believe in their ability to successfully complete research projects. This implies encouraging positive emotional states, stimulating self-reflection and self-comparison with others in the group, giving positive evaluative feedback and being an intentional role model.

  14. Mentoring to develop research selfefficacy, with particular reference to previously disadvantaged individuals

    OpenAIRE

    S. Schulze

    2010-01-01

    The development of inexperienced researchers is crucial. In response to the lack of research self-efficacy of many previously disadvantaged individuals, the article examines how mentoring can enhance the research self-efficacy of mentees. The study is grounded in the self-efficacy theory (SET) – an aspect of the social cognitive theory (SCT). Insights were gained from an in-depth study of SCT, SET and mentoring, and from a completed mentoring project. This led to the formulation of three basi...

  15. Environmental Guidance Program Reference Book: Marine Protection, Research, and Sanctuaries Act and Marine Mammal Protection Act. Revision 3

    Energy Technology Data Exchange (ETDEWEB)

    1988-01-31

    Two laws governing activities in the marine environment are considered in this Reference Book. The Marine Protection, Research, and Sanctuaries Act (MPRSA, P.L. 92-532) regulates ocean dumping of waste, provides for a research program on ocean dumping, and provides for the designation and regulation of marine sanctuaries. The Marine Mammal Protection Act (MMPA, P.L. 92-522) establishes a federal program to protect and manage marine mammals. The Fishery Conservation and Management Act (FCMA, P.L. 94-265) establishes a program to regulate marine fisheries resources and commercial marine fishermen. Because the Department of Energy (DOE) is not engaged in any activities that could be classified as fishing under FCMA, this Act and its regulations have no implications for the DOE; therefore, no further consideration of this Act is given within this Reference Book. The requirements of the MPRSA and the MMPA are discussed in terms of their implications for the DOE.

  16. Concepts and approaches for marine ecosystem research with reference to the tropics

    OpenAIRE

    Matthias Wolff

    2002-01-01

    The present article gives an overview on the leading concepts and modelling approaches for marine ecosystems’ research including (1) The trophodynamic theory of pelagic ecosystems, (2) Compartment/network models, (3) Mesocosm experiments and (4) Individual based modelling approaches and virtual ecosystems (VE). The main research questions addressed, as well as the potential and limits of each approach, are summarized and discussed and it is shown how the concept of ecosystem has changed over ...

  17. IRM National Reference Series: Japan: An evaluation of government-sponsored energy conservation research and development

    Energy Technology Data Exchange (ETDEWEB)

    Howard, C.D.

    1987-07-01

    Despite the recent drop in world oil prices, the Japanese government is continuing to stress energy conservation, because Japan relies on imports for 85% of its total energy requirements and virtually 100% of its petroleum. Japan stresses long-term developments and sees conservation as an integral part of its 50- to 100-year transition from fossil fuels to nuclear and renewable sources of energy. The Japanese government is targeting new materials, biotechnology, and electronics technologies as the foundation of Japan's economy in the 21st century. Most government research programs in Japan are governed by aggressive timetables and fixed technical goals and are usually guaranteed funding over a 5- to 10-year period. Of the major energy conservation research programs, the best known is the Moonlight Project, administered by the Ministry of International Trade and Industry (MITI), and oriented towards end-use technologies such as Stirling engines and advanced heat pumps. Parts of MITI's Basic Technologies for Future Industries Program involve research in new materials and bioreactors. The Science and Technology Agency's Exploratory Research in Advanced Technologies (ERATO) Program is also investigating these technologies while emphasizing basic research. Other ministries supporting research related to energy conservation are the Ministry of Education, Science, and Culture and the Ministry of Construction. For 1985, government spending for energy conservation research was at least $50 million. Private sector funding of energy conservation research was $500 million in 1984. A brief outline of major programs and key participants is included for several of the most relevant technologies. An overview of Japan's experience in international scientific collaboration is also included.

  18. CPTC and NIST-sponsored Yeast Reference Material Now Publicly Available | Office of Cancer Clinical Proteomics Research

    Science.gov (United States)

    The yeast protein extract (RM8323) developed by National Institute of Standards and Technology (NIST) under the auspices of NCI's CPTC initiative is currently available to the public at https://www-s.nist.gov/srmors/view_detail.cfm?srm=8323. The yeast proteome offers researchers a unique biological reference material. RM8323 is the most extensively characterized complex biological proteome and the only one associated with several large-scale studies to estimate protein abundance across a wide concentration range.

  19. Research on maximum level noise contaminated of remote reference magnetotelluric measurements using synthesized data

    Science.gov (United States)

    Gang, Zhang; Fansong, Meng; Jianzhong, Wang; Mingtao, Ding

    2018-02-01

    Determining magnetotelluric impedance precisely and accurately is fundamental to valid inversion and geological interpretation. This study aims to determine the minimum value of signal-to-noise ratio (SNR) which maintains the effectiveness of remote reference technique. Results of standard time series simulation, addition of different Gaussian noises to obtain the different SNR time series, and analysis of the intermediate data, such as polarization direction, correlation coefficient, and impedance tensor, show that when the SNR value is larger than 23.5743, the polarization direction disorder at morphology and a smooth and accurate sounding carve value can be obtained. At this condition, the correlation coefficient value of nearly complete segments between the base and remote station is larger than 0.9, and impedance tensor Zxy presents only one aggregation, which meet the natural magnetotelluric signal characteristic.

  20. Science communication in the field of fundamental biomedical research (editorial).

    Science.gov (United States)

    Illingworth, Sam; Prokop, Andreas

    2017-10-01

    The aim of this special issue on science communication is to inspire and help scientists who are taking part or want to take part in science communication and engage with the wider public, clinicians, other scientists or policy makers. For this, some articles provide concise and accessible advice to individual scientists, science networks, or learned societies on how to communicate effectively; others share rationales, objectives and aims, experiences, implementation strategies and resources derived from existing long-term science communication initiatives. Although this issue is primarily addressing scientists working in the field of biomedical research, much of it similarly applies to scientists from other disciplines. Furthermore, we hope that this issue will also be used as a helpful resource by academic science communicators and social scientists, as a collection that highlights some of the major communication challenges that the biomedical sciences face, and which provides interesting case studies of initiatives that use a breadth of strategies to address these challenges. In this editorial, we first discuss why we should communicate our science and contemplate some of the different approaches, aspirations and definitions of science communication. We then address the specific challenges that researchers in the biomedical sciences are faced with when engaging with wider audiences. Finally, we explain the rationales and contents of the different articles in this issue and the various science communication initiatives and strategies discussed in each of them, whilst also providing some information on the wide range of further science communication activities in the biomedical sciences that could not all be covered here. Copyright © 2017 The Authors. Published by Elsevier Ltd.. All rights reserved.

  1. Application of field blanks in odour emission research

    NARCIS (Netherlands)

    Ogink, Nico W.M.; Klarenbeek, Johannes V.

    2016-01-01

    In the Netherlands field blanks are mandatory when sampling odour emission. Field blanks are matrices that have negligible or unmeasurable amounts of the substance of interest. They are used to document possible contamination during sampling, transport and storage of samples. Although field

  2. Evolution of Attitudes in the Field of Human Research Ethics

    Directory of Open Access Journals (Sweden)

    Hugo Escobar-Melo

    2008-05-01

    Full Text Available The state of evolution of attitudes in a sample of 142 Medical Students at the Pontificia Universidad Javeriana in Bogota (at the beginning, middle and ending of their studies in the field of Human Research Ethics (HRE is analytically described. A complex scale of attitudes was used, with three components: affective, beliefs-related and behavioral, further divided into three theoretical categories taken from Bioethics: Subject-End/means- Dignity, Benefit and Justice. The relationship between the current medical education process and the attitudes regarding HRE in the sample are analyzed.A small trend towards progress in all categories and in all components of attitudes throughout medical education is described; neither the Benefit nor the Subject-End/means/Dignity categories evolve in a significant way; some significant differences were observed in the Justice category (beliefs and behavioral and in the Subject-End/means-Dignity category (beliefs component. The results allow for asking about the role of formation and evolution of those attitudes throughout the academic process. In conclusion, attitudes seem to be progressing relatively, without a decisive evolution.

  3. Medical Research Volunteer Program (MRVP): innovative program promoting undergraduate research in the medical field.

    Science.gov (United States)

    Dagher, Michael M; Atieh, Jessica A; Soubra, Marwa K; Khoury, Samia J; Tamim, Hani; Kaafarani, Bilal R

    2016-06-06

    Most educational institutions lack a structured system that provides undergraduate students with research exposure in the medical field. The objective of this paper is to describe the structure of the Medical Research Volunteer Program (MRVP) which was established at the American University of Beirut, Lebanon, as well as to assess the success of the program. The MRVP is a program that targets undergraduate students interested in becoming involved in the medical research field early on in their academic career. It provides students with an active experience and the opportunity to learn from and support physicians, clinical researchers, basic science researchers and other health professionals. Through this program, students are assigned to researchers and become part of a research team where they observe and aid on a volunteer basis. This paper presents the MRVP's four major pillars: the students, the faculty members, the MRVP committee, and the online portal. Moreover, details of the MRVP process are provided. The success of the program was assessed by carrying out analyses using information gathered from the MRVP participants (both students and faculty). Satisfaction with the program was assessed using a set of questions rated on a Likert scale, ranging from 1 (lowest satisfaction) to 5 (highest satisfaction). A total of 211 students applied to the program with a total of 164 matches being completed. Since the beginning of the program, three students have each co-authored a publication in peer-reviewed journals with their respective faculty members. The majority of the students rated the program positively. Of the total number of students who completed the program period, 35.1 % rated the effectiveness of the program with a 5, 54.8 % rated 4, and 8.6 % rated 3. A small number of students gave lower ratings of 2 and 1 (1.1 % and 0.4 %, respectively). The MRVP is a program that provides undergraduate students with the opportunity to learn about research firsthand

  4. Life Sciences Space Station planning document: A reference payload for the Life Sciences Research Facility

    Science.gov (United States)

    1986-01-01

    The Space Station, projected for construction in the early 1990s, will be an orbiting, low-gravity, permanently manned facility providing unprecedented opportunities for scientific research. Facilities for Life Sciences research will include a pressurized research laboratory, attached payloads, and platforms which will allow investigators to perform experiments in the crucial areas of Space Medicine, Space Biology, Exobiology, Biospherics and Controlled Ecological Life Support System (CELSS). These studies are designed to determine the consequences of long-term exposure to space conditions, with particular emphasis on assuring the permanent presence of humans in space. The applied and basic research to be performed, using humans, animals, and plants, will increase our understanding of the effects of the space environment on basic life processes. Facilities being planned for remote observations from platforms and attached payloads of biologically important elements and compounds in space and on other planets (Exobiology) will permit exploration of the relationship between the evolution of life and the universe. Space-based, global scale observations of terrestrial biology (Biospherics) will provide data critical for understanding and ultimately managing changes in the Earth's ecosystem. The life sciences community is encouraged to participate in the research potential the Space Station facilities will make possible. This document provides the range and scope of typical life sciences experiments which could be performed within a pressurized laboratory module on Space Station.

  5. Monte Carlo reference data sets for imaging research: Executive summary of the report of AAPM Research Committee Task Group 195

    NARCIS (Netherlands)

    Sechopoulos, I.; Ali, E.S.; Badal, A.; Badano, A.; Boone, J.M.; Kyprianou, I.S.; Mainegra-Hing, E.; McMillan, K.L.; McNitt-Gray, M.F.; Rogers, D.W.; Samei, E.; Turner, A.C.

    2015-01-01

    The use of Monte Carlo simulations in diagnostic medical imaging research is widespread due to its flexibility and ability to estimate quantities that are challenging to measure empirically. However, any new Monte Carlo simulation code needs to be validated before it can be used reliably. The type

  6. Co-Citation Analysis of Articles Published in Substance Abuse Journals: Intellectual Structure and Research Fields (2001-2012).

    Science.gov (United States)

    González-Alcaide, Gregorio; Calafat, Amador; Becoña, Elisardo; Thijs, Bart; Glänzel, Wolfgang

    2016-09-01

    The purpose of this study is to introduce a new methodology in the field of substance abuse, namely, co-citation analysis, which uses the bibliographic references of publications to establish the main thematic areas being researched and to identify the seminal documents that have contributed to establishing the intellectual foundation of the discipline at the present time. We identified all bibliographic references that were cited in documents published in the substance abuse journals included in the Journal Citation Reports in the 2001-2012 period, generating a co-citation matrix. This matrix was used to perform a co-citation network analysis. The co-citation network analysis led to the identification of 56 prominent research clusters that bring together 698 documents; their subject matter constitutes the foundation of the discipline in the field's journals. Substance abuse research is dominated by a few core topics; chief among them are tools for measuring and diagnosing dependence, as well as therapeutic approaches to treat alcohol abuse and nicotine addiction. Other areas of note include epidemiological studies, research on drug user motivation (particularly among young people), binge drinking, social support mediators and networks, opioid dependence, consumption and effects of cannabis, basic research on brain damage, genetic factors associated with substance use, and the physiological and neurological determinants of abstinence syndrome. The main works of reference that we identified were published in a small number of journals, which establish the intellectual, conceptual, and methodological basis of the discipline.

  7. Engineering education research in European Journal of Engineering Education and Journal of Engineering Education: citation and reference discipline analysis

    Science.gov (United States)

    Wankat, Phillip C.; Williams, Bill; Neto, Pedro

    2014-01-01

    The authors, citations and content of European Journal of Engineering Education (EJEE) and Journal of Engineering Education (JEE) in 1973 (JEE, 1975 EJEE), 1983, 1993, 2003, and available 2013 issues were analysed. Both journals transitioned from house organs to become engineering education research (EER) journals, although JEE transitioned first. In this process the number of citations rose, particularly of education and psychology sources; the percentage of research articles increased markedly as did the number of reference disciplines. The number of papers per issue, the number of single author papers, and the citations of science and engineering sources decreased. EJEE has a very broad geographic spread of authors while JEE authors are mainly US based. A 'silo' mentality where general engineering education researchers do not communicate with EER researchers in different engineering disciplines is evident. There is some danger that EER may develop into a silo that does not communicate with technically oriented engineering professors.

  8. Reference earth orbital research and applications investigations (blue book). Volume 3: Physics

    Science.gov (United States)

    1971-01-01

    The definition of physics experiments to be conducted aboard the space station is presented. The four functional program elements are: (1) space physics research laboratory, (2) plasma physics and environmental perturbation laboratory, (3) cosmic ray physics laboratory, and (4) physics and chemistry laboratory. The experiments to be conducted by each facility are defined and the crew member requirements to accomplish the experiments are presented.

  9. When referring physicians and researchers disagree on equipoise : the TOTAL trial experience

    NARCIS (Netherlands)

    Rodrigues, H. C. M. L.; Deprest, J.; v. d. Berg, P. P.

    Objective In this article, we reflect on whether randomized controlled trials (RCTs) are adequate for the clinical evaluation of maternal-fetal surgery for congenital diaphragmatic hernia (CDH), focusing on the role of patients' preferences in the setting up of research protocols, on the requirement

  10. Increasing the Effectiveness of Inservice Training for Desegregation: A Synthesis of Current Research. Reference & Resource Series.

    Science.gov (United States)

    Smylie, Mark A.; Hawley, Willis D.

    This report reviews recent research on strategies that have been found to promote useful and effective inservice training programs in desegregated schools. The first section presents approaches for planning and implementing inservice training for desegregation. The second section describes inservice desegregation training programs that focus on:…

  11. Establishing an international reference image database for research and development in medical image processing

    NARCIS (Netherlands)

    Horsch, A.D.; Prinz, M.; Schneider, S.; Sipilä, O; Spinnler, K.; Vallée, J-P; Verdonck-de Leeuw, I; Vogl, R.; Wittenberg, T.; Zahlmann, G.

    2004-01-01

    INTRODUCTION: The lack of comparability of evaluation results is one of the major obstacles of research and development in Medical Image Processing (MIP). The main reason for that is the usage of different image datasets with different quality, size and Gold standard. OBJECTIVES: Therefore, one of

  12. Neutronic analysis of a reference LEU core for Pakistan research reactor using oxide fuel

    International Nuclear Information System (INIS)

    Akhtar, K.M.; Qazi, M.K.; Bokhari, I.H.; Khan, L.A.; Pervez, S.

    1988-07-01

    Neutronic analysis of a 10 MW reference core for PARR, having 28 fresh LEU fuel elements arranged in a 6x5 configuration has been carried out using standard computer codes WIMS-D, EXTERMINATOR-II, and CITATION. Total nuclear power peaking of 3.2 has bee found to occur in the fuel plate adjacent to the water filled central flux trap at the depth of 43.8 cm from the top of the active core. Replacement of water in central flux trap with an aluminum block, having a 50 mm diameter water filled irradiation channel changes the flux profiles in fuel, core side flux trap and reflector. The thermal flux in the central flux trap decreases by about 53%. Therefore some of the fuel elements will have to be removed and the new configuration has to be analysed to determine the first operating core. However, after achieving some burn-up and confirmation from thermal hydraulic analysis, the core configuration analysed, will be the final working core. (orig./A.B.)

  13. An extended protocol for usability validation of medical devices: Research design and reference model.

    Science.gov (United States)

    Schmettow, Martin; Schnittker, Raphaela; Schraagen, Jan Maarten

    2017-05-01

    This paper proposes and demonstrates an extended protocol for usability validation testing of medical devices. A review of currently used methods for the usability evaluation of medical devices revealed two main shortcomings. Firstly, the lack of methods to closely trace the interaction sequences and derive performance measures. Secondly, a prevailing focus on cross-sectional validation studies, ignoring the issues of learnability and training. The U.S. Federal Drug and Food Administration's recent proposal for a validation testing protocol for medical devices is then extended to address these shortcomings: (1) a novel process measure 'normative path deviations' is introduced that is useful for both quantitative and qualitative usability studies and (2) a longitudinal, completely within-subject study design is presented that assesses learnability, training effects and allows analysis of diversity of users. A reference regression model is introduced to analyze data from this and similar studies, drawing upon generalized linear mixed-effects models and a Bayesian estimation approach. The extended protocol is implemented and demonstrated in a study comparing a novel syringe infusion pump prototype to an existing design with a sample of 25 healthcare professionals. Strong performance differences between designs were observed with a variety of usability measures, as well as varying training-on-the-job effects. We discuss our findings with regard to validation testing guidelines, reflect on the extensions and discuss the perspectives they add to the validation process. Copyright © 2017 Elsevier Inc. All rights reserved.

  14. Applying Bourdieu’s Field Theory to Analyze the Changing Status of the Research Librarian

    DEFF Research Database (Denmark)

    Wien, Charlotte; Dorch, Bertil F.

    2018-01-01

    to how this demand can be met. We argue that changes that has taken place in the research library has also led to a loss of prestige for the research librarians. We use Bourdieu’s field theory to analyse the power struggles in the academic field and in the field of the research library and to identify...

  15. Novel Electrochemical Phenomena in Magnetic Fields(Research in High Magnetic Fields)

    OpenAIRE

    Mogi, Iwao; Kamiko, Masao

    1996-01-01

    Recent two topics are given of electrochemical studies in steady magnetic fields at the High Field Laboratory of Tohoku University. One is the magnetic-field-induced diffusion-limited-aggregation in the pattern formation of silver electrodeposits . The other is the magnetic field effect on the learning effect in a dopant-exchange process of an organic conducting polymer polypyrrole.

  16. Technology, safety, and costs of decommissioning reference nuclear research and test reactors. Main report

    International Nuclear Information System (INIS)

    Konzek, G.J.; Ludwick, J.D.; Kennedy, W.E. Jr.; Smith, R.I.

    1982-03-01

    Safety and Cost Information is developed for the conceptual decommissioning of two representative licensed nuclear research and test reactors. Three decommissioning alternatives are studied to obtain comparisons between costs (in 1981 dollars), occupational radiation doses, potential radiation dose to the public, and other safety impacts. The alternatives considered are: DECON (immediate decontamination), SAFSTOR (safe storage followed by deferred decontamination), and ENTOMB (entombment). The study results are presented in two volumes. Volume 1 (Main Report) contains the results in summary form

  17. Efficient implementation of three-dimensional reference interaction site model self-consistent-field method: application to solvatochromic shift calculations.

    Science.gov (United States)

    Minezawa, Noriyuki; Kato, Shigeki

    2007-02-07

    The authors present an implementation of the three-dimensional reference interaction site model self-consistent-field (3D-RISM-SCF) method. First, they introduce a robust and efficient algorithm for solving the 3D-RISM equation. The algorithm is a hybrid of the Newton-Raphson and Picard methods. The Jacobian matrix is analytically expressed in a computationally useful form. Second, they discuss the solute-solvent electrostatic interaction. For the solute to solvent route, the electrostatic potential (ESP) map on a 3D grid is constructed directly from the electron density. The charge fitting procedure is not required to determine the ESP. For the solvent to solute route, the ESP acting on the solute molecule is derived from the solvent charge distribution obtained by solving the 3D-RISM equation. Matrix elements of the solute-solvent interaction are evaluated by the direct numerical integration. A remarkable reduction in the computational time is observed in both routes. Finally, the authors implement the first derivatives of the free energy with respect to the solute nuclear coordinates. They apply the present method to "solute" water and formaldehyde in aqueous solvent using the simple point charge model, and the results are compared with those from other methods: the six-dimensional molecular Ornstein-Zernike SCF, the one-dimensional site-site RISM-SCF, and the polarizable continuum model. The authors also calculate the solvatochromic shifts of acetone, benzonitrile, and nitrobenzene using the present method and compare them with the experimental and other theoretical results.

  18. Technology, safety, and costs of decommissioning reference nuclear research and test reactors. Appendices

    International Nuclear Information System (INIS)

    Konzek, G.J.; Ludwick, J.D.; Kennedy, W.E. Jr.; Smith, R.I.

    1982-03-01

    Safety and Cost Information is developed for the conceptual decommissioning of two representative licensed nuclear research and test reactors. Three decommissioning alternatives are studied to obtain comparisons between costs (in 1981 dollars), occupational radiation doses, potential radiation dose to the public, and other safety impacts. The alternatives considered are: DECON (immediate decontamination), SAFSTOR (safe storage followed by deferred decontamination), and EMTOMB (entombment). The study results are presented in two volumes. Volume 2 (Appendices) contains the detailed data that support the results given in Volume 1, including unit-component data

  19. Technology, safety, and costs of decommissioning reference nuclear research and test reactors. Appendices

    Energy Technology Data Exchange (ETDEWEB)

    Konzek, G.J.; Ludwick, J.D.; Kennedy, W.E. Jr.; Smith, R.I.

    1982-03-01

    Safety and Cost Information is developed for the conceptual decommissioning of two representative licensed nuclear research and test reactors. Three decommissioning alternatives are studied to obtain comparisons between costs (in 1981 dollars), occupational radiation doses, potential radiation dose to the public, and other safety impacts. The alternatives considered are: DECON (immediate decontamination), SAFSTOR (safe storage followed by deferred decontamination), and EMTOMB (entombment). The study results are presented in two volumes. Volume 2 (Appendices) contains the detailed data that support the results given in Volume 1, including unit-component data.

  20. Collaboration and Team Science Field Guide - Center for Research Strategy

    Science.gov (United States)

    Collaboration and Team Science: A Field Guide provides insight into the practices of conducting collaborative work. Since its 2010 publication, the authors have worked and learned from teams and organizations all over the world. Learn from these experiences in the second edition of the Team Science Field Guide.

  1. Pasture research in the wet and dry tropics of Nigeria with particular reference to isotope applications

    International Nuclear Information System (INIS)

    Adegbola, A.A.; Adepoju, A.

    1983-01-01

    Pasture research in western Nigeria, which typifies the wet and dry tropics of Nigeria, is discussed fully. Interest in pasture research in the area was kindled in 1930 with the introduction of Cynodon nlemfuensis var. robusta, but systematic work did not start until the 1950s. Early agronomic studies centred on easy means of establishing the adapted species from cuttings, sprigs or seeds. The most important species in the dry tropics is Andropogon gayanus, while in the wet tropics it is Panicum maximum. Later, investigations on yield of dry matter, intervals and height of cutting and response to fertilizer applications were carried out. Radioactive fertilizer 32 P- and 15 N-urea were also used to study the yield response of pasture to fertilizer application and to determine the percentage uptake of nutrients by plants. The results of such trials in different locations in the area are discussed extensively. Also, 32 P was used to determine the depth of active absorption of the root system of Andropogon gayanus and Panicum maximum, thus establishing their rooting pattern. (author)

  2. Future pulsed magnetic field applications in dynamic high pressure research

    International Nuclear Information System (INIS)

    Fowler, C.M.; Caird, R.S.; Hawke, R.S.; Burgess, T.J.

    1977-01-01

    The generation of large pressures by magnetic fields to obtain equation of state information is of fairly recent origin. Magnetic fields used in compression experiments produce an almost isentropic sample compression. Axial magnetic field compression is discussed together with a few results chosen to show both advantages and limitations of the method. Magnetic compression with azimuthal fields is then considered. Although there are several potential pitfalls, the possibilities are encouraging for obtaining very large pressures. Next, improved diagnostic techniques are considered. An x-ray ''streaking camera'' is proposed for volume measurements and a more detailed discussion is given on the use of the shift of the ruby fluorescence lines for pressure measurements. Finally, some additional flux compression magnetic field sources are discussed briefly. 5 figures, 2 tables

  3. The Cerefy Atlas of brain anatomy. An interactive reference tool for students, teachers and researchers

    International Nuclear Information System (INIS)

    Nowinski, W.L.; Thirunavuukarasuu, A.; Bryan, R.N.

    2002-01-01

    The Cerefy registered Atlas of Brain Anatomy is a remarkable accomplishment combining the best of current neuroanatomical methodology with the amazing capability of the modern personal computer. This CD-ROM not only demonstrates the power of digital technology, but also provides a view of the future of medical education. Through the use of magnetic resonance images (MRI) combined with interactive image labeling it is possible to use this CD-ROM to rapidly name any structure within the brain in three planes of section presented simultaneously. With the simple click of a mouse of most intricate of brain structures can be identified in sagittal, axial, and coronal planes. By selecting the ''label'' function, whatever brain structure the cursor is placed upon is named in real time. It is possible to literally browse across the brain and watch every structure that is touched be named on the screen as fast as you can move the cursor. This incredible functionality is further enhanced by the ability to select the test mode and provide a self-guided quiz of neuroanatomy. This atlas is perfect for preparing teaching materials as it also contains a ''save'' function to preserve labeled images. This low-cost CD-ROM will no doubt be used by those who study and/or teach neuroanatomy, neurology, neurosurgery, neuroradiology, neuroscience, neuropsychology, and psychiatry. This unique contribution to the field of neuroanatomy is a most impressive accomplishment. (orig.)

  4. The Cerefy Atlas of brain anatomy. An interactive reference tool for students, teachers and researchers

    Energy Technology Data Exchange (ETDEWEB)

    Nowinski, W.L.; Thirunavuukarasuu, A.; Bryan, R.N.

    2002-07-01

    The Cerefy {sup registered} Atlas of Brain Anatomy is a remarkable accomplishment combining the best of current neuroanatomical methodology with the amazing capability of the modern personal computer. This CD-ROM not only demonstrates the power of digital technology, but also provides a view of the future of medical education. Through the use of magnetic resonance images (MRI) combined with interactive image labeling it is possible to use this CD-ROM to rapidly name any structure within the brain in three planes of section presented simultaneously. With the simple click of a mouse of most intricate of brain structures can be identified in sagittal, axial, and coronal planes. By selecting the ''label'' function, whatever brain structure the cursor is placed upon is named in real time. It is possible to literally browse across the brain and watch every structure that is touched be named on the screen as fast as you can move the cursor. This incredible functionality is further enhanced by the ability to select the test mode and provide a self-guided quiz of neuroanatomy. This atlas is perfect for preparing teaching materials as it also contains a ''save'' function to preserve labeled images. This low-cost CD-ROM will no doubt be used by those who study and/or teach neuroanatomy, neurology, neurosurgery, neuroradiology, neuroscience, neuropsychology, and psychiatry. This unique contribution to the field of neuroanatomy is a most impressive accomplishment. (orig.)

  5. Neurophilia: Guiding Educational Research and the Educational Field?

    Science.gov (United States)

    Smeyers, Paul

    2016-01-01

    For a decade or so there has been a new "hype" in educational research: it is called educational neuroscience or even neuroeducation (and neuroethics)--there are numerous publications, special journals, and an abundance of research projects together with the advertisement of many positions at renowned research centres worldwide. After a…

  6. Clearing and dissecting insects for internal skeletal morphological research with particular reference to bees

    Directory of Open Access Journals (Sweden)

    Diego Sasso Porto

    2016-03-01

    Full Text Available ABSTRACT A detailed protocol for chemical clearing of bee specimens is presented. Dry specimens as well as those preserved in liquid media can be cleared using this protocol. The procedure consists of a combined use of alkaline solution (KOH or NaOH and hydrogen peroxide (H2O2, followed by the boiling of the cleared specimens in 60–70% EtOH. Clearing is particularly useful for internal skeletal morphological research. This procedure allows for efficient study of internal projections of the exoskeleton (e.g., apodemes, furcae, phragmata, tentoria, internal ridges and sulci, but this process makes external features of the integument, as some sutures and sulci, readily available for observation as well. Upon completion of the chemical clearing process the specimens can be stored in glycerin. This procedure was developed and evaluated for the preparation of bees and other Apoidea, but modifications for use with other insect taxa should be straightforward after some experimentation on variations of timing of steps, concentration of solutions, temperatures, and the necessity of a given step. Comments on the long-term storage, morphological examination, and photodocumentation of cleared specimens are also provided.

  7. Seventy five years of research on induced mutations with special reference to crop improvement in India

    International Nuclear Information System (INIS)

    Kharkwal, M.C.; Pawar, S.E.; Pandey, R.N.

    2001-01-01

    Mutation research programmes for crop improvement were initiated about seven decades ago, immediately after the discovery of mutagenic effects X-rays on Drosophila by Muller 1927 and barley and maize by Stadler in 1929. During fifties and sixties, several countries including China, India, the Netherlands, USA and Japan took up the task of crop improvement through mutation breeding approaches. By the end of the 20 th century about 2252 mutant varieties of crop plants including cereals, oil seeds, pulses, vegetables, fruits, fibres and ornamentals have been developed and released for cultivation worldwide. More than 60% of the varieties were released after 1985. While 1585 varieties were released as direct mutants, 667 varieties were developed by using mutants in cross breeding. Physical mutagens (X-rays, gamma rays, thermal and fast neutrons) account for the development of about 89% of the total varieties. Gamma rays alone were used to develop about 60% of the mutant varieties. India has made an appreciable contribution with the development of 301 mutant varieties (> 13% ) of forty four crop species. The mutant varieties have been improved for plant architecture, yield, quality and tolerance to biotic and abiotic stresses. Mutation breeding has made a significant contribution to the national economy of the countries like China, India, Japan, Pakistan and USA. Induced mutagenesis is gaining importance in plant molecular biology as a tool to identify and isolate gene and to study their structure and function. (author)

  8. Field Testing Research at the NWTC (Fact Sheet)

    Energy Technology Data Exchange (ETDEWEB)

    2015-02-01

    The National Wind Technology Center (NWTC) at the National Renewable Laboratory (NREL) has extensive field testing capabilities that have been used in collaboration with the wind industry to accelerate wind technology development and deployment for more than 30 years.

  9. The perspectives of research in the construction field in Romania during the 2014-2020 period

    OpenAIRE

    Mihai VRABIE; Sergiu-Andrei BĂETU

    2013-01-01

    The construction field represents an important part of the Romanian economy (and of UE), with a strong social impact on the quality of citizen life. Naturally, the research from the construction field should be a priority in research and innovation activity. However, the research programs recently launched (Horizon 2020, from EU, and the Strategy of Research and Innovation 2014-2020 in Romania), don’t mention the construction field as an explicit priority. Under these conditions, we can speak...

  10. Concepts and approaches for marine ecosystem research with reference to the tropics

    Directory of Open Access Journals (Sweden)

    Matthias Wolff

    2002-06-01

    Full Text Available The present article gives an overview on the leading concepts and modelling approaches for marine ecosystems’ research including (1 The trophodynamic theory of pelagic ecosystems, (2 Compartment/network models, (3 Mesocosm experiments and (4 Individual based modelling approaches and virtual ecosystems (VE. The main research questions addressed, as well as the potential and limits of each approach, are summarized and discussed and it is shown how the concept of ecosystem has changed over time. Aquatic biomas spectra (derived from the theory of pelagic ecosystems can give insight into the trophic structure of different systems, and can show how organism sizes are distributed within the system and how different size groups participate in the system’s metabolism and production. Compartment/network models allow for a more detailed description of the trophic structure of ecosystems and of the energy/biomass fluxes through the explicit modelling of P/B-and food consumption rates and biomasses for each system compartment. Moreover, system indices for a characterization and comparison with other systems can be obtained such as average trophic efficiency, energy throughput, and degree of connectivity, degree of maturity, and others. Recent dynamic extensions of trophic network models allow for exploring past and future impacts of fishing and environmental disturbances as well as to explore policies such as marine protected areas. Mesocosm experiments address a multitude of questions related to aquatic processes (i.e. primary production, grazing, predation, energy transfer between trophic levels etc. and the behaviour of organisms (i.e. growth, migration, response to contaminants etc. under semi-natural conditions. As processes within mesocosms often differ in rate and magnitude from those occurring in nature, mesocosms should be viewed as large in vitro experiments designed to test selected components of the ecosystem and not as an attempt to enclose

  11. Design of exposure systems for ELF electric field bioeffects research

    International Nuclear Information System (INIS)

    Kaune, W.T.; Decker, J.R.; Phillips, R.D.; Gillis, M.F.

    1978-01-01

    Two systems for exposure and sham-exposure of large numbers of rats and mice to uniform, vertical, 60-Hz electric fields have been constructed. The rat system contains four racks of four rectangular 1.0m x 2.2m exposure-electrodes that are stacked vertically with a separation between adjacent electrodes of 0.41 m. Any two of the four exposure racks may be energized to a maximum field strength of 150 kV/m. Each exposure electrode is equipped with 24 Lexan cages, each of which holds a single rat. The cage floor is a stainless steel screen that serves as one electrode. The system for watering animals is contained entirely within the electrode and does not protrude above the cage's floor, thereby preventing distortion of the exposure field and electrical shock or discharge as the animal drinks. The total capacity of the system is 288 rats. A similar system of two racks of five electrodes each is used to expose as many as 450 mice to fields at a maximum strength of 150 kV/m while sham exposing an equal number. Measurements of the electric field reveal an overall uniformity within 4% over the area to be occupied by experimental animals. The field inside a Lexan cage is reduced by about 3%. No corona-discharge has been detected. Measurements of ozone concentration in the rat and mouse exposure systems show no difference from background levels. Harmonic distortion has been eliminated by damping and filtering the high-voltage supply. Animals housed in close proximity are partially shielded from the electric field; the total body current in a rat model is reduced by 35 ± 5% when rats are placed in adjacent cages. (author)

  12. The Research of the Driver Attention Field Modeling

    Directory of Open Access Journals (Sweden)

    Pengfei Tao

    2014-01-01

    Full Text Available For expanding the application scope of car-following, based on the basic idea of the noncontact interaction of the objects in physics, establish an attention field model to describe the driving behavior. Firstly, propose the time distance concept to describe the degree of driver perception to the front one-dimensional space and extend its application range to the two-dimensional space. Secondly, connect the point which has the same time distance to constitute the equipotential line of drivers’ attention field equipotent, and establish a model to describe it. Thirdly, define the effective range of the driver’s psychological field with the feature of the driver’s visual distance range increasing and the angle decreasing. Finally, design the calculation method to collect projection of the object in the psychological field scope and calculate the curve points to determine the object’s intensity of psychological field. Preliminarily build the driving behavior model and use the numerical simulation method to simulate the simple transport scenarios; initially verify the validity of the model.

  13. Depth of Field: Discursive design research through film

    Directory of Open Access Journals (Sweden)

    Timo Arnall

    2010-07-01

    Full Text Available This article is about the role of film in interaction and product design research with technology, and the use of film in exploring and explaining emerging technologies in multiple contexts. We have engaged in a reflective design research process that uses graphical, audiovisual, and time-based media as a tool, a material and a communicative artefact that enables us to approach complex, obscure and often invisible emerging technologies. We give a discursive account of how film has played an intricate role in our design research practice, from revealing the materiality of invisible wireless technology, to explaining complex technical prototypes, to communicating to a public audience through online films that may fold broader social and cultural discourses back into our design research process. We conclude by elaborating on discursive design approaches to research that use film as a reflective and communicative medium that allows for design research to operate within a social and cultural frame.

  14. 3. research coordination meeting on development of a reference data base for ion beam analysis. Summary report

    International Nuclear Information System (INIS)

    Abriola, D.; Vickridge, I.

    2009-12-01

    Highlights of the third and last Research Coordination Meeting are given with respect to the progress achieved in the Co-ordinated Research Project on Development of a Reference Database for Ion Beam Analysis. The meeting took place at the IAEA headquarters in Vienna from 27 March to 3 April 2009. Participants presented the results of their work and identified and assigned key tasks in pursuance of the final output of the CRP, in particular the update of the IBANDL library and the drafting of the final Technical Report of the CRP. In addition, a number of productive discussions took place concerning issues such as measurements, assessments, evaluations, benchmarks and recommendations. The main conclusions as well as lists of responsibilities and tasks towards the production of the final report are presented. (author)

  15. Summary report of second research coordination meeting on development of a reference database for ion beam analysis

    International Nuclear Information System (INIS)

    Vickridge, Ian; Schwerer, Otto

    2007-07-01

    Highlights of the 2nd Research Coordination Meeting (RCM) are given with respect to the progress achieved in the first 1 1/2 years of the Co-ordinated Research Project (CRP) on Development of a Reference Database for Ion Beam Analysis. Participants presented the results of their work to date, and identified and assigned key tasks required to ensure that the final output of the CRP is achieved. In addition, a number of lively and productive discussions took place concerning technical issues such as accelerator energy calibration, error reporting, accuracy of the existing IBANDL and EXFOR datasets for IBA, and procedures for producing recommended cross-section data. The main conclusions as well as lists of actions and tasks are presented in this report. (author)

  16. Los Alamos field-reversed configuration (FRC) research

    Energy Technology Data Exchange (ETDEWEB)

    Armstrong, W.T.; Bartsch, R.R.; Cochrane, J.C.; Linford, R.K.; Lipson, J.; McKenna, K.F.; Platts, D.A.; Sherwood, E.G.; Siemon, R.E.; Tuszewski, M.

    1981-01-01

    Recent experimental results are discussed for a compact toroid produced by a field-reversed theta-pinch and containing purely poloidal magnetic fields. The confinement time is found to vary inversely with the ion gyro-radius and to be approximately independent of ion temperature for fixed gyro-radius. Within a coil of fixed radius, the plasmoid major radius R was varied by approx. 30% and the confinement appears to scale as R/sup 2/. A semi-empirical formation model has been formulated that predicts reasonably well the plasma parameters as magnetic field and fill pressure are varied in present experiments. The model is used to predict parameters in larger devices under construction.

  17. Los Alamos field-reversed configuration (FRC) research

    International Nuclear Information System (INIS)

    Armstrong, W.T.; Bartsch, R.R.; Cochrane, J.C.; Linford, R.K.; Lipson, J.; McKenna, K.F.; Platts, D.A.; Sherwood, E.G.; Siemon, R.E.; Tuszewski, M.

    1981-01-01

    Recent experimental results are discussed for a compact toroid produced by a field-reversed theta-pinch and containing purely poloidal magnetic fields. The confinement time is found to vary inversely with the ion gyro-radius and to be approximately independent of ion temperature for fixed gyro-radius. Within a coil of fixed radius, the plasmoid major radius R was varied by approx. 30% and the confinement appears to scale as R 2 . A semi-empirical formation model has been formulated that predicts reasonably well the plasma parameters as magnetic field and fill pressure are varied in present experiments. The model is used to predict parameters in larger devices under construction

  18. Reference materials for microanalytical nuclear techniques. Final report of a co-ordinated research project 1994-1999

    International Nuclear Information System (INIS)

    2002-06-01

    A significant problem in the use of solid- and small-sample techniques is a general lack in suitable certified reference materials (CRM). Essentially, no CRM are certified for the small sample sizes typically used. Direct utilization of most existing CRM in solid sampling analysis procedures, typically 1 mg sample size, is often difficult or even impossible because trace components may not be sufficiently homogeneously distributed in the sample or their homogeneous distribution has not been tested. To explore the production, characterization and use of CRM for determinations with sample sizes much smaller than currently used, the Coordinated Research Program focused on selection of biological and environmental materials suitable for microanalytical techniques, definition of specifications for suitable CRM, evaluation of existing CRM for use with microanalytical techniques, evaluation of requirements for sample pre-treatment, evaluation of analytical techniques and research on development of techniques to be used in characterizing the homogeneity and chemical composition of small samples, and application of analytical techniques to the characterization of candidate reference materials for use with microanalytical techniques

  19. The Historical Origins of Mass Communication Research in Our Field.

    Science.gov (United States)

    Becker, Samuel L.

    The seeds of mass communication research in broadcasting were extracurricular, not academic, inspired by experimental campus radio stations. Prior to the mid-1930s, radio research was scarce. Until World War II, radio speech was the most important topic, followed by articles on how to use radio for improving instruction. There are three…

  20. Research in Corporate Communication: An Overview of an Emerging Field.

    Science.gov (United States)

    van Riel, Cees B. M.

    1997-01-01

    Provides an overview of research in corporate communication, focusing on achievements found in the international academic literature in both communication and business school disciplines. Gives three key concepts in such research: corporate identity, corporate reputation, and orchestration of communication. Advocates an interdisciplinary approach…

  1. BIOREMEDIATION OF HAZARDOUS WASTES - RESEARCH, DEVELOPMENT AND FIELD EVALUATIONS - 1995

    Science.gov (United States)

    The proceedings of the 1995 Symposium on Bioremediation of Hazardous Wastes, hosted by the Office of Research and Development (ORD) of the EPA in Rye Brook, New York. he symposium was the eighth annual meeting for the presentation of research conducted by EPA's Biosystems Technol...

  2. Sustainability transitions : an emerging field of research and its prospects

    NARCIS (Netherlands)

    Markard, J.; Raven, R.P.J.M.; Truffer, B.

    2012-01-01

    Sustainability oriented innovation and technology studies have received increasing attention over the past 10–15 years. In particular, a new field dealing with "sustainability transitions" has gained ground and reached an output of 60–100 academic papers per year. In this article, we aim to identify

  3. Magnetic field measurements on board of altitude-research rockets

    International Nuclear Information System (INIS)

    Theile, B.; Luehr, H.

    1976-01-01

    Electric currents within the Earth's magneto- and ionosphere can be probed by measuring their magnetic fields. Different payloads of the national sounding rocket programme will carry magnetometers of high resolution and dynamic range. Thorough test procedures are necessary to evaluate the instrument's properties and possible interference problems. (orig.) [de

  4. A stepwise validation of a wearable system for estimating energy expenditure in field-based research

    International Nuclear Information System (INIS)

    Rumo, Martin; Mäder, Urs; Amft, Oliver; Tröster, Gerhard

    2011-01-01

    Regular physical activity (PA) is an important contributor to a healthy lifestyle. Currently, standard sensor-based methods to assess PA in field-based research rely on a single accelerometer mounted near the body's center of mass. This paper introduces a wearable system that estimates energy expenditure (EE) based on seven recognized activity types. The system was developed with data from 32 healthy subjects and consists of a chest mounted heart rate belt and two accelerometers attached to a thigh and dominant upper arm. The system was validated with 12 other subjects under restricted lab conditions and simulated free-living conditions against indirect calorimetry, as well as in subjects' habitual environments for 2 weeks against the doubly labeled water method. Our stepwise validation methodology gradually trades reference information from the lab against realistic data from the field. The average accuracy for EE estimation was 88% for restricted lab conditions, 55% for simulated free-living conditions and 87% and 91% for the estimation of average daily EE over the period of 1 and 2 weeks

  5. Supporting Medical Students to Do International Field Research: A Case Study

    Science.gov (United States)

    Pearson, Stephen; Parr, Jennifer; Ullah, Zafar; Omar, Maye

    2014-01-01

    Field research can benefit medical students' learning through experiential engagement with research and personal exposure to foreign health systems. However, the off-campus nature of the activity raises challenges for teachers. This article presents a case study that illustrates the benefits and challenges of organising a field research project…

  6. Higher Education as a Field of Study and Research in Europe

    Science.gov (United States)

    Kehm, Barbara M.

    2015-01-01

    This article describes the emergence of higher education as a field of research, scholarship and study. In the first part, the meaning of higher education as a field of research is defined contrasting Europe and the US. Then, the institutional basis of higher education research in Europe is analysed (learned societies, institutes and centres,…

  7. Editorial: The developing field | Lashley | Research in Hospitality ...

    African Journals Online (AJOL)

    Research in Hospitality Management. Journal Home · ABOUT · Advanced Search · Current Issue · Archives · Journal Home > Vol 5, No 1 (2015) >. Log in or Register to get access to full text downloads.

  8. Research in corporate communication: An overview of an emerging field

    OpenAIRE

    Riel, Cees

    1997-01-01

    textabstractThis commentary is intended as an amendment to Argenti's (1996) viewpoint, published in Volume 10, Issue 1, of Management Communication Quarterly. Van Riel provides an overview of research in corporate communication, focusing on achievements found in the international academic literature in both communication and business school disciplines. In the author's opinion, there are three key concepts in corporate communication research: corporate identity, corporate reputation, and orch...

  9. Annotated bibliography of selected references on shoreline barrier island deposits with emphasis on Patrick Draw Field, Sweetwater County, Wyoming

    Energy Technology Data Exchange (ETDEWEB)

    Rawn-Schatzinger, V.; Schatzinger, R.A.

    1993-07-01

    This bibliography contains 290 annotated references on barrier island and associated depositional environments and reservoirs. It is not an exhaustive compilation of all references on the subject, but rather selected papers on barrier islands, and the depositional processes of formation. Papers that examine the morphology and internal architecture of barrier island deposits, exploration and development technologies are emphasized. Papers were selected that aid in understanding reservoir architecture and engineering technologies to help maximize recovery efficiency from barrier island oil reservoirs. Barrier islands from Wyoming, Montana and the Rocky Mountains basins are extensively covered.

  10. Biological effects from electromagnetic fields: Research progress and exposure measurements

    International Nuclear Information System (INIS)

    Mauro, F.; Lovisolo, G.A.; Raganella, L.

    1992-01-01

    Although it is commonly accepted that exposure to high levels of electromagnetic, micro- and radiofrequency waves produces harmful effects to the health of man, the formulation of exposure limits is still an open process and dependent upon the evolving level of knowledge in this field. This paper surveys the current level of knowledge gained through 'in vitro' and 'in vivo' radiological and epidemiological studies on different types of electromagnetic radiation derived effects - chromosomal, mutagenic, carcinogenic. It then reviews efforts by international organizations, e. g., the International Radiation Protection Association, to establish exposure limits for radiofrequency electromagnetic fields. Brief notes are given on the electromagnetic radiation monitoring campaign being performed by public health authorities in the Lazio Region of Italy

  11. Short presentation on some researches activities about near field earthquakes

    International Nuclear Information System (INIS)

    Donald, John

    2002-01-01

    The major hazard posed by earthquakes is often thought to be due to moderate to large magnitude events. However, there have been many cases where earthquakes of moderate and even small magnitude have caused very significant destruction when they have coincided with population centres. Even though the area of intense ground shaking caused by such events is generally small, the epicentral motions can be severe enough to cause damage even in well-engineered structures. Two issues are addressed here, the first being the identification of the minimum earthquake magnitude likely to cause damage to engineered structures and the limits of the near-field for small-to-moderate magnitude earthquakes. The second issue addressed is whether features of near-field ground motions such as directivity, which can significantly enhance the destructive potential, occur in small-to-moderate magnitude events. The accelerograms from the 1986 San Salvador (El Salvador) earthquake indicate that it may be non conservative to assume that near-field directivity effects only need to be considered for earthquakes of moment magnitude M 6.5 and greater. (author)

  12. Outline of the safety research results, in the power reactor field, fiscal year 1996

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-11-01

    The Power Reactor and Nuclear Fuel Development Corporation (PNC) has promoted the safety research in fiscal year of 1996 according to the Fundamental Research on Safety Research (fiscal year 1996 to 2000) prepared on March, 1996. Here is described on the research results in fiscal year 1996, the first year of the 5 years programme, and whole outline of the fundamental research on safety research, on the power reactor field (whole problems on the new nuclear converter and the fast breeder reactor field and problems relating to the power reactor in the safety for earthquake and probability theoretical safety evaluation field). (G.K.)

  13. Applying Bourdieu’s Field Theory to Analyze the Changing Status of the Research Librarian

    DEFF Research Database (Denmark)

    Wien, Charlotte; Dorch, Bertil F.

    2018-01-01

    Research librarians no longer need to perform as many of the traditional the chores of the research library. This is due to many factors like digitalization, changing research policies and changes in researchers’ behaviour. With these changes also comes a demand for new skills. We seek an answer...... to how this demand can be met. We argue that changes that has taken place in the research library has also led to a loss of prestige for the research librarians. We use Bourdieu’s field theory to analyse the power struggles in the academic field and in the field of the research library and to identify...

  14. PROJECTS EDUCATION RESEARCH: PRACTICAL EXPERIENCED IN A SCHOOL IN / FIELD

    Directory of Open Access Journals (Sweden)

    Rosenilde Nogueira Paniago

    2014-12-01

    Full Text Available This study discusses an investigation done with teachers of a public school, located on countryside, city of Água Boa, Mato Grosso, with a view to looking for new alternatives to the teaching practice on school, by means of using the collaborative realization of projects and researches as pedagogical alternatives. As qualitative approach, the investigation has developed by means of the study of benchmarks, that discuss the research on teaching formation, on teaching practice, education on/of the countryside and, of the projects’ realization of teaching and research with and by teachers. The work enabled to get closer relationship between school and community, to articulate the theoretical knowledge, studied on school, and the life of countryside students, showing the necessity of theoretico-methodological formation with collective engagement of teachers and public politics that propitiate the emergence of conditions to the new practices of teaching on school on/of the countryside by the bias of search.

  15. Development of a protection system for research reactor based in Field Programmable Gate Array - FPGA

    International Nuclear Information System (INIS)

    Martins, Roque Hudson da Silva

    2016-01-01

    This study presents a implementation purpose of a protection system for research nuclear reactors by using a programed device FPGA (Field Programmable Gate Array). As well as logic protection method involved on an automatic shutdown (TRIP) of a reactor, that ensure the security on such systems. These new control and operation mechanics are developed to guarantee that the security limits of a power plant are not exceeded, these mechanics can work isolated or in groups to safe guard the security levels. For this implementation to be completed, there will be presented the main aspects and concepts referred to protection systems, mostly about research nuclear reactors, with some applications terms exposed. The system proposed at this paper was developed following the VHDL (Very High Speed Integrated Circuits) hardware describing language, and the Modelsim software from Altera Software to program the automatic turning off routines, and hypothetical simulations for such. The results show that for every software application for supporting nuclear reactors, like security devices, they have to meet the IEC 60880 criteria. This paper have great importance, seeing that nuclear reactor security systems, are a basic element for ensure the reactor security. (author)

  16. A review of research in the field of nanorobotics.

    Energy Technology Data Exchange (ETDEWEB)

    Sierra, Dannelle P.; Weir, Nathan A.; Jones, James Frank

    2005-10-01

    This report highlights the findings of an extensive review of the literature in the area of nanorobotics. The main goal of this midyear LDRD effort is to survey and identify accomplishments and advancements that have been made in this relatively new and emerging field. As a result, it may be determined what routes in the area of nanorobotics are scientifically plausible and technically useful so that the Intelligent Systems and Robotics Center can position itself to play a role in the future development of nanotechnology.

  17. Exploration of geomagnetic field anomaly with balloon for geophysical research

    Science.gov (United States)

    Jia, Wen-Kui

    The use of a balloon to explore the geomagnetic field anomaly in the area east of Beijing is demonstrated. The present results are compared with those of aerial surveys. Descriptions are given of the fluxgate magnetometer, the sensor's attitude control and measurement, and data transmission and processing. At an altitude of about 30 km, a positive anomaly of the vertical component of about 100 nanoteslas was measured. The results suggest that, for this particular area, the shallow layer of a small-scale geological structure differs from the deep layer of a large-scale geological structure.

  18. Higher Education Research Community in Taiwan: An Emerging Field

    Science.gov (United States)

    Chan, Sheng-Ju; Chan, Ying

    2015-01-01

    This paper aims to explore the evolution and characteristics of the higher education research community in Taiwan. In echoing the development of the East Asian region, Taiwan has made substantial progress during the past two decades. The massification of higher education itself has played a major role in promoting the academic differentiation or…

  19. Labouring in the Knowledge Fields: Researching Knowledge in Globalising Workspaces

    Science.gov (United States)

    Farrell, Lesley

    2006-01-01

    While research on globalisation can hardly be said to have ignored the phenomenon of the global corporation or the globally distributed supply chain, the focus has overwhelmingly been on "globalization from above"--on corporate structures and on the movement of global capital in global "knowledge economies". My focus in this…

  20. Field research opens new vistas in Vietnam | IDRC - International ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    Her research on understanding non-farm employment among ethnic minority groups threw Le Barbenchon's work a few initial curves. First, her permits were delayed, forcing her to consider different work. Then she discovered that national surveys had not properly captured migration of ethnic minorities and to find enough ...

  1. [Research programs on elementary particle and field theories and superconductivity

    International Nuclear Information System (INIS)

    Khuri, N.N.

    1992-01-01

    Research of staff members in theoretical physics is presented in the following areas: super string theory, a new approach to path integrals, new ideas on the renormalization group, nonperturbative chiral gauge theories, the standard model, K meson decays, and the CP problem. Work on high-T c superconductivity and protein folding is also related

  2. Bringing research to farmers' fields in Malawi: Lizzie Shumba ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    2010-12-09

    Dec 9, 2010 ... By intercropping protein-rich legumes like pigeon pea, soybeans, and groundnuts that ... Legumes are now part of the diet in the area. ... Canadian researchers helped us understand why we had high rates of malnutrition and ...

  3. Information Sharing in the Field of Design Research

    Science.gov (United States)

    Pilerot, Ola

    2015-01-01

    Introduction: This paper reports on an extensive research project which aimed at exploring information sharing activities in a scholarly context. The paper presents and synthesises findings from a literature review and three qualitative case studies. The empirical setting is a geographically distributed Nordic network of design scholars. Method:…

  4. Flipped Classroom Research and Trends from Different Fields of Study

    Science.gov (United States)

    Zainuddin, Zamzami; Halili, Siti Hajar

    2016-01-01

    This paper aims to analyse the trends and contents of flipped classroom research based on 20 articles that report on flipped learning classroom initiatives from 2013-2015. The content analysis was used as a methodology to investigate methodologies, area of studies, technology tools or online platforms, the most frequently used keywords and works…

  5. Research in corporate communication: An overview of an emerging field

    NARCIS (Netherlands)

    C.B.M. van Riel (Cees)

    1997-01-01

    textabstractThis commentary is intended as an amendment to Argenti's (1996) viewpoint, published in Volume 10, Issue 1, of Management Communication Quarterly. Van Riel provides an overview of research in corporate communication, focusing on achievements found in the international academic literature

  6. Transformative consumer research: Its origins and possible enrichment of the field of consumer research in South Africa

    Directory of Open Access Journals (Sweden)

    Leona M. Ungerer

    2014-06-01

    Research purpose: The purpose of this study is to explore the principles underlying transformative consumer research, including how it differs from traditional research methods and pointing out some established research areas in this field. Motivation for the study: Apart from pointing to a lack of literature, this article highlights the relevance of this approach for emerging countries by investigating the principles and practices embedded in transformative consumer research. It provides some indication of how an investigation of these areas may contribute to enhancing the relevance of consumer research to its various stakeholders. Research design, approach and method: The author used a literature review to conduct the study. Main findings: It appears that consumer research currently lacks external and internal relevance. A transformative consumer-research approach may address some of the fundamental problems in the way consumer psychologists plan and conduct their research, contributing to this lack of relevance. Practical/managerial implications: Most stages of the traditional research approach may need to be adapted for transformative research purposes. Some approaches appear particularly suited to transformative consumer research, including revelatory, incendiary, policy, participatory and coalition research. Contribution/value-add: This study’s primary contribution stems from suggesting a rather novel additional approach to enhance the relevance of consumer research in South Africa, pointing out some established practices in the field of transformative consumer research and suggesting how they may augment consumer research in South Africa.

  7. Safety analysis of the IAEA reference research reactor during loss of flow accident using the code MERSAT

    International Nuclear Information System (INIS)

    Hainoun, A.; Ghazi, N.; Abdul-Moaiz, B. Mansour

    2010-01-01

    Using the thermal hydraulic code MERSAT detailed model including primary and secondary loop was developed for the IAEA's reference research reactor MTR 10 MW. The developed model enables the simulation of expected neutronic and thermal hydraulic phenomena during normal operation, reactivity and loss of flow accidents. Two different loss of flow accident (LOFA) have been simulated using slow and fast decrease time of core mass flow. In both cases the expected flow reversal from downward forced to upward natural circulation has been successfully simulated. The results indicate that in both accidents the limit of onset of subcooled boiling was not arrived and consequently no exceed of design limits in term of thermal hydraulic instability or DNB is observed. Finally, the simulation results show good agreement with previous international benchmark analyses accomplished with other qualified channel and thermal hydraulic system codes.

  8. A Guide to Field Notes for Qualitative Research: Context and Conversation.

    Science.gov (United States)

    Phillippi, Julia; Lauderdale, Jana

    2018-02-01

    Field notes are widely recommended in qualitative research as a means of documenting needed contextual information. With growing use of data sharing, secondary analysis, and metasynthesis, field notes ensure rich context persists beyond the original research team. However, while widely regarded as essential, there is not a guide to field note collection within the literature to guide researchers. Using the qualitative literature and previous research experience, we provide a concise guide to collection, incorporation, and dissemination of field notes. We provide a description of field note content for contextualization of an entire study as well as individual interviews and focus groups. In addition, we provide two "sketch note" guides, one for study context and one for individual interviews or focus groups for use in the field. Our guides are congruent with many qualitative and mixed methodologies and ensure contextual information is collected, stored, and disseminated as an essential component of ethical, rigorous qualitative research.

  9. [Research progress of mammalian synthetic biology in biomedical field].

    Science.gov (United States)

    Yang, Linfeng; Yin, Jianli; Wang, Meiyan; Ye, Haifeng

    2017-03-25

    Although still in its infant stage, synthetic biology has achieved remarkable development and progress during the past decade. Synthetic biology applies engineering principles to design and construct gene circuits uploaded into living cells or organisms to perform novel or improved functions, and it has been widely used in many fields. In this review, we describe the recent advances of mammalian synthetic biology for the treatment of diseases. We introduce common tools and design principles of synthetic gene circuits, and then we demonstrate open-loop gene circuits induced by different trigger molecules used in disease diagnosis and close-loop gene circuits used for biomedical applications. Finally, we discuss the perspectives and potential challenges of synthetic biology for clinical applications.

  10. Research into the field of art. Introduction of a case and levels of anchoring

    OpenAIRE

    Nelida Guadalupe Arqueros

    2015-01-01

    Many times in the research on the field of art the terms are ambiguous if they are not specified. We go through the distinction between ontological questions (types of object of investigations), epistemological (produced knowledge) and methodological itself (discussion about the links with social science). At the same time, we draw a distinction between the research in the field of art and the artistic research itself. Also in the artistic research, we deal with the meaning of one type of que...

  11. The salience of social referents: a field experiment on collective norms and harassment behavior in a school social network.

    Science.gov (United States)

    Paluck, Elizabeth Levy; Shepherd, Hana

    2012-12-01

    Persistent, widespread harassment in schools can be understood as a product of collective school norms that deem harassment, and behavior allowing harassment to escalate, as typical and even desirable. Thus, one approach to reducing harassment is to change students' perceptions of these collective norms. Theory suggests that the public behavior of highly connected and chronically salient actors in a group, called social referents, may provide influential cues for individuals' perception of collective norms. Using repeated, complete social network surveys of a public high school, we demonstrate that changing the public behavior of a randomly assigned subset of student social referents changes their peers' perceptions of school collective norms and their harassment behavior. Social referents exert their influence over peers' perceptions of collective norms through the mechanism of everyday social interaction, particularly interaction that is frequent and personally motivated, in contrast to interaction shaped by institutional channels like shared classes. These findings clarify the development of collective social norms: They depend on certain patterns of and motivations for social interactions within groups across time, and are not static but constantly reshaped and reproduced through these interactions. Understanding this process creates opportunities for changing collective norms and behavior. (PsycINFO Database Record (c) 2012 APA, all rights reserved).

  12. X and gamma reference radiation for calibrating dosemeters and doserate meters and for determining their response as a function of photon energy - Part 4: Calibration of area and personal dosemeters in low energy X reference radiation fields

    International Nuclear Information System (INIS)

    2004-01-01

    ISO 4037 consists of the following parts, under the general title X and gamma reference radiation for calibrating dosemeters and doserate meters and for determining their response as a function of photon energy: Part 1: Radiation characteristics and production methods; Part 2: Dosimetry for radiation protection over the energy ranges from 8 keV to 1,3 MeV and 4 MeV to 9 MeV; Part 3: Calibration of area and personal dosemeters and the measurement of their response as a function of energy and angle of incidence; Part 4: Calibration of area and personal dosemeters in low energy X reference radiation fields. This part 4. of ISO 4037 gives guidelines on additional aspects of the characterization of low energy photon radiations. This part of ISO 4037 also describes procedures for calibration and determination of the response of area and personal dose(rate)meters as a function of photon energy and angle of incidence. This part of ISO 4037 concentrates on the accurate determination of conversion coefficients from air kerma to Hp(10) and H*(10) for the spectra of low energy photon radiations. As an alternative to the use of conversion coefficients, the direct calibration in terms of these quantities by means of appropriate reference instruments is described

  13. Participatory Action Research in the Field of Neonatal Intensive Care

    DEFF Research Database (Denmark)

    Nørgaard, Betty; Johannessen, Helle; Fenger-Grøn, Jesper

    2016-01-01

    : This PAR process was carried out from August 2011 to July 2013 and included participant observations, semi-structured interviews, multi sequential interviews, workshops, focus groups, group discussion, and a seminar. The theoretical framework of validity described by Herr and Anderson's three criteria......BACKGROUND: In neonatal intensive care units (NICUs) health care professionals typically give most of their attention to the infants and the mothers while many fathers feel uncertain and have an unmet need for support and guidance. This paper describes and discusses participatory action research...

  14. Field Dependence-Independence Cognitive Style and Academic Achievement: A Review of Research and Theory.

    Science.gov (United States)

    Tinajero, Carolina; Paramo, M. Fernanda

    1998-01-01

    Reviews research into the possible effects of field dependence/independence on achievement at school. Finds that field-independent subjects perform better than field-dependent subjects, whether in a specific discipline or across all subjects. Discusses possible explanations for this difference in performance. Includes a chart summarizing the…

  15. Symposium on the research field of soft robotics

    CERN Document Server

    Albu-Schäffer, Alin; Brock, Oliver; Raatz, Annika; Soft Robotics : Transferring Theory to Application

    2015-01-01

    The research areas as well as the knowledge gained for the practical use of robots are growing and expanding beyond manufacturing and industrial automation, making inroads in sectors such as health care and terrain sensing, as well as general assistive systems working in close interaction with humans. In a situation like this, it is necessary for future robot systems to become less stiff and more specialized by taking inspiration from the mechanical compliance and versatility found in natural materials and organisms. At present, a new discipline is emerging in this area, called »Soft Robotics«. It particularly challenges the traditional thinking of engineers, as the confluence of technologies, ranging from new materials, sensors, actuators and production techniques to new design tools, will make it possible to create new systems whose structures are almost completely made of soft materials, which bring about entirely new functions and behaviors, similar in many ways to natural systems. These Proceedings foc...

  16. Mapping the radiation fields at a research reactor

    International Nuclear Information System (INIS)

    Soegaard-Hansen, Jens; Warming, Lisbeth

    1999-01-01

    The DR 3 reactor at Risoe National Laboratory is a multipurpose research reactor. It has the status of a Large European Beam facility therefor its neutron scattering spectrometers are used by many visiting scientists. As a supplement to the routine health physics monitoring programmes a special survey has been made to get more detailed information of the radiation levels in the hall and of the most important sources of the radiation. The special survey consisted of three sorts of measurements: an extra set of thermoluminescence dosimeters, a set of continuous measurements of the dose rate at selected places and spot measurements with handheld instruments around the spectrometers. Some of the results from the survey are presented. (au)

  17. Research on language and prejudices in the environment field

    International Nuclear Information System (INIS)

    Malzahn, P.; Hofmann, W.; Schneider, L.

    1991-01-01

    The research in question has explored 39 central notions of the environmental discussion as to its semantic and meaning for persons and institutions - from waste incineration to the dying of woods. The interviewed were asked to give a semantic profile, a common description, the positive, the negative aspects as well as synonyms/alternatives for every notion. 200 members of institutions (out of the sections of economy, public institutions, environmental initiatives) and consumers were questioned. The results show, that single notions that are of high significance to an institutional section of the consumers may mean little to other institutional sections and vice versa. If a notion is regarded as unimportant, communication with this notion and about the corresponding facts will hardly be possible. Depending on the point of interest notions are used in totally different meanings. The differences in meaning are revealed. (orig.) With 7 tabs., 38 diagrams [de

  18. Korean Reference HLW Disposal System

    Energy Technology Data Exchange (ETDEWEB)

    Choi, Heui Joo; Lee, J. Y.; Kim, S. S. (and others)

    2008-03-15

    This report outlines the results related to the development of Korean Reference Disposal System for High-level radioactive wastes. The research has been supported around for 10 years through a long-term research plan by MOST. The reference disposal method was selected via the first stage of the research during which the technical guidelines for the geological disposal of HLW were determined too. At the second stage of the research, the conceptual design of the reference disposal system was made. For this purpose the characteristics of the reference spent fuels from PWR and CANDU reactors were specified, and the material and specifications of the canisters were determined in term of structural analysis and manufacturing capability in Korea. Also, the mechanical and chemical characteristics of the domestic Ca-bentonite were analyzed in order to supply the basic design parameters of the buffer. Based on these parameters the thermal and mechanical analysis of the near-field was carried out. Thermal-Hydraulic-Mechanical behavior of the disposal system was analyzed. The reference disposal system was proposed through the second year research. At the final third stage of the research, the Korean Reference disposal System including the engineered barrier, surface facilities, and underground facilities was proposed through the performance analysis of the disposal system.

  19. Urban geomorphological heritage - A new field of research

    Science.gov (United States)

    Reynard, Emmanuel; Pica, Alessia; Coratza, Paola

    2017-04-01

    Urbanization is one of the major challenges that the world faces. In 2015, 54% of the world population was living in urban areas and in some countries this percentage is close to 100% (Singapore 100%; Qatar 99%; Belgium 98%). In several parts of the world annual urbanization rates exceed 5% (e.g. Oman 8.54%; Rwanda 6.43%; Burkina Faso 5.87%), which means that urban sprawl is a widespread phenomenon. Urbanization and correlated infrastructure building highly impact and sometimes completely destroy natural landforms. Geomorphological heritage research has traditionally focused on rural or natural regions, in particular protected areas (nature parks, geoparks). We consider that urban areas, which have been poorly investigated until now, are particularly interesting in a geomorphological heritage point of view for almost three reasons: (i) The geomorphological context (site) of some cities is part of their "image" and their fame (e.g. the sugarloaf of Rio de Janeiro); (ii) Urban sprawl often interacts with landforms, which addresses the challenge of geoheritage protection in fast urbanizing areas; (iii) Cities are often tourist destinations, which creates a potential for a geotourist promotion of their geomorphological heritage. This study addresses the main challenges research on geomorphological heritage is facing in urban contexts: (i) the complex interrelationships between natural landforms and urban forms; (ii) the partial or total invisibility of landforms and sediments that are covered or destroyed by urban infrastructures; (iii) man-made landforms as part of urban geomorphological heritage; (iv) the suitability of some landforms (valleys, gullies, mounts) for specific urban uses; (v) the geomorphic constraints of landforms on urban development; and (vi) the importance of some landforms for the urban landscape and the image of the cities. To address these challenges a methodological framework is proposed, which combines: (i) the geomorphological analysis of the

  20. Doing implementation research on health governance: a frontline researcher's reflexive account of field-level challenges and their management.

    Science.gov (United States)

    Patel, Gupteswar; Garimella, Surekha; Scott, Kerry; Mondal, Shinjini; George, Asha; Sheikh, Kabir

    2017-11-15

    Implementation Research (IR) in and around health systems comes with unique challenges for researchers including implementation, multi-layer governance, and ethical issues. Partnerships between researchers, implementers, policy makers and community members are central to IR and come with additional challenges. In this paper, we elaborate on the challenges faced by frontline field researchers, drawing from experience with an IR study on Village Health Sanitation and Nutrition Committees (VHSNCs). The IR on VHSNC took place in one state/province in India over an 18-month research period. The IR study had twin components; intervention and in-depth research. The intervention sought to strengthen the VHSNC functioning, and concurrently the research arm sought to understand the contextual factors, pathways and mechanism affecting VHSNC functions. Frontline researchers were employed for data collection and a research assistant was living in the study sites. The frontline research assistant experienced a range of challenges, while collecting data from the study sites, which were documented as field memos and analysed using inductive content analysis approach. Due to the relational nature of IR, the challenges coalesced around two sets of relationships (a) between the community and frontline researchers and (b) between implementers and frontline researchers. In the community, the frontline researcher was viewed as the supervisor of the intervention and was perceived by the community to have power to bring about beneficial changes with public services and facilities. Implementers expected help from the frontline researcher in problem-solving in VHSNCs, and feedback on community mobilization to improve their approaches. A concerted effort was undertaken by the whole research team to clarify and dispel concerns among the community and implementers through careful and constant communication. The strategies employed were both managerial, relational and reflexive in nature

  1. Verification of absorbed dose rates in reference beta radiation fields: measurements with an extrapolation chamber and radiochromic film

    Energy Technology Data Exchange (ETDEWEB)

    Reynaldo, S. R. [Development Centre of Nuclear Technology, Posgraduate Course in Science and Technology of Radiations, Minerals and Materials / CNEN, Av. Pte. Antonio Carlos 6627, 31270-901 Belo Horizonte, Minas Gerais (Brazil); Benavente C, J. A.; Da Silva, T. A., E-mail: sirr@cdtn.br [Development Centre of Nuclear Technology / CNEN, Av. Pte. Antonio Carlos 6627, 31270-901 Belo Horizonte, Minas Gerais (Brazil)

    2015-10-15

    Beta Secondary Standard 2 (Bss 2) provides beta radiation fields with certified values of absorbed dose to tissue and the derived operational radiation protection quantities. As part of the quality assurance, metrology laboratories are required to verify the reliability of the Bss-2 system by performing additional verification measurements. In the CDTN Calibration Laboratory, the absorbed dose rates and their angular variation in the {sup 90}Sr/{sup 90}Y and {sup 85}Kr beta radiation fields were studied. Measurements were done with a 23392 model PTW extrapolation chamber and with Gafchromic radiochromic films on a PMMA slab phantom. In comparison to the certificate values provided by the Bss-2, absorbed dose rates measured with the extrapolation chamber differed from -1.4 to 2.9% for the {sup 90}Sr/{sup 90}Y and -0.3% for the {sup 85}Kr fields; their angular variation showed differences lower than 2% for incidence angles up to 40-degrees and it reached 11% for higher angles, when compared to ISO values. Measurements with the radiochromic film showed an asymmetry of the radiation field that is caused by a misalignment. Differences between the angular variations of absorbed dose rates determined by both dosimetry systems suggested that some correction factors for the extrapolation chamber that were not considered should be determined. (Author)

  2. Verification of absorbed dose rates in reference beta radiation fields: measurements with an extrapolation chamber and radiochromic film

    International Nuclear Information System (INIS)

    Reynaldo, S. R.; Benavente C, J. A.; Da Silva, T. A.

    2015-10-01

    Beta Secondary Standard 2 (Bss 2) provides beta radiation fields with certified values of absorbed dose to tissue and the derived operational radiation protection quantities. As part of the quality assurance, metrology laboratories are required to verify the reliability of the Bss-2 system by performing additional verification measurements. In the CDTN Calibration Laboratory, the absorbed dose rates and their angular variation in the 90 Sr/ 90 Y and 85 Kr beta radiation fields were studied. Measurements were done with a 23392 model PTW extrapolation chamber and with Gafchromic radiochromic films on a PMMA slab phantom. In comparison to the certificate values provided by the Bss-2, absorbed dose rates measured with the extrapolation chamber differed from -1.4 to 2.9% for the 90 Sr/ 90 Y and -0.3% for the 85 Kr fields; their angular variation showed differences lower than 2% for incidence angles up to 40-degrees and it reached 11% for higher angles, when compared to ISO values. Measurements with the radiochromic film showed an asymmetry of the radiation field that is caused by a misalignment. Differences between the angular variations of absorbed dose rates determined by both dosimetry systems suggested that some correction factors for the extrapolation chamber that were not considered should be determined. (Author)

  3. Product-services as a research field: past, present and future. Reflections from a decade of research

    NARCIS (Netherlands)

    Tukker, A.; Tischner, U.

    2006-01-01

    In the last decade many researchers, institutes and programs in the EU paid attention to product-service systems (PSS). Given this massive effort, it is time to take stock. Is PSS research a theoretical field in its own right? Is the PSS concept indeed the road to the Factor 10 world? Is it the road

  4. SU-E-T-242: Monte Carlo Simulations Used to Test the Perturbation of a Reference Ion Chamber Prototype Used for Small Fields

    Energy Technology Data Exchange (ETDEWEB)

    Vazquez Quino, L; Calvo, O; Huerta, C; DeWeese, M [Midsouth Radation Physics, Little Rock, AR (United States)

    2014-06-01

    Purpose: To study the perturbation due to the use of a novel Reference Ion Chamber designed to measure small field dosimetry (KermaX Plus C by IBA). Methods: Using the Phase-space files for TrueBeam photon beams available by Varian in IAEA-compliant format for 6 and 15 MV. Monte Carlo simulations were performed using BEAMnrc and DOSXYZnrc to investigate the perturbation introduced by a reference chamber into the PDDs and profiles measured in water tank. Field sizes ranging from 1×1, 2×2,3×3, 5×5 cm2 were simulated for both energies with and without a 0.5 mm foil of Aluminum which is equivalent to the attenuation equivalent of the reference chamber specifications in a water phantom of 30×30×30 cm3 and a pixel resolution of 2 mm. The PDDs, profiles, and gamma analysis of the simulations were performed as well as a energy spectrum analysis of the phase-space files generated during the simulation. Results: Examination of the energy spectrum analysis performed shown a very small increment of the energy spectrum at the build-up region but no difference is appreciated after dmax. The PDD, profiles and gamma analysis had shown a very good agreement among the simulations with and without the Al foil, with a gamma analysis with a criterion of 2% and 2mm resulting in 99.9% of the points passing this criterion. Conclusion: This work indicates the potential benefits of using the KermaX Plus C as reference chamber in the measurement of PDD and Profiles for small fields since the perturbation due to in the presence of the chamber the perturbation is minimal and the chamber can be considered transparent to the photon beam.

  5. Modeling research in low-medium temperature geothermal field, Tianjin

    Institute of Scientific and Technical Information of China (English)

    WANG; Kun(王坤); LI; Chunhua(李春华)

    2002-01-01

    The geothermal reservoir in Tianjin can be divided into two parts: the upper one is the porous medium reservoir in the Tertiary system; the lower one includes the basement reservoir in Lower Paleozoic and Middle-Upper Proterozoic. Hot springs are exposed in the northern mountain and confined geothermal water is imbedded in the southern plain. The geothermal reservoir is incised by several fractures. In recent years, TDS of the geothermal water have gone up along with the production rate increasing, along the eastern fracture zone (Cangdong Fracture and West Baitangkou Fracture). This means that the northern fracture system is the main seepage channel of the deep circulation geothermal water, and the reservoir has good connection in a certain area and definite direction. The isotopic research about hydrogen and carbon chronology indicates that the main recharge period of geothermal water is the Holocene Epoch, the pluvial and chilly period of 20 kaBP. The karst conduits in weathered carbonate rocks of the Proterozoic and Lower Paleozoic and the northeast regional fracture system are the main feeding channels of Tianjin geothermal water. Since the Holocene epoch, the geothermal water stayed at a sealed warm period. The tracer test in WR45 doublet system shows that the tracer test is a very effective measure for understanding the reservoir's transport nature and predicting the cooling time and transport velocity during the reinjection. 3-D numerical simulation shows that if the reinjection well keeps a suitable distance from the production well, reinjection will be a highly effective measure to extract more thermal energy from the rock matrix. The cooling of the production well will not be a problem.

  6. Development of a TPC for energy and fluence references in low energies neutronic fields (from 8 keV to 5 MeV)

    International Nuclear Information System (INIS)

    Maire, Donovan

    2015-01-01

    In order to judge the measurement reliability, metrology requires to measure quantities with their uncertainties, in relation to a reference through a documented and unbroken chain of calibrations. In neutron radiation field, instrument response has to be known as a function of the neutron energy. Then detector calibrations are required using reference neutron fields. In France, primary reference neutron fields are held by the LNE-IRSN, at the Laboratory for Neutron Metrology and Dosimetry (LMDN). In order to improve reference neutron field characterization, the LNE-IRSN MIMAC μTPC has been developed. This detector is a Time Projection Chamber (TPC), using a gas at low pressure (30 mbar abs. to 1 bar abs.). Nuclear recoils are generated by neutron elastic scattering onto gas atoms. By measuring the nuclear recoil energy and scattering angle, the μTPC detector is able to measure the energy distribution of the neutron fluence between 8 keV and 5 MeV. The main challenge was to perform accurate spectrometry of neutron fields in the keV range, following a primary procedure. First of all, a metrological approach was followed in order to master every physical process taking part in the neutron detection. This approach led to develop the direct and inverse models, representing the detector response function and its inverse function respectively. Using this detailed characterization, the energy distribution of the neutron fluence has been measured for a continuous neutron field of 27 keV. The reconstructed energy is 28,2 ± 4,5 keV, the difference between μTPC integral fluence measurement and other measurement methods is less than 6%. The LNE-IRSN MIMAC μTPC system becomes the only one system able to measure simultaneously energy and fluence at energies lower than 100 keV, following a primary procedure. The project goal is then reached. These measurements at energies lower than 100 keV shows also a non-linearity between the ionization charge and the ion kinetic energy

  7. Education Program for Doctoral Researchers by Industrial-Government-Academic Cooperation and Interaction between Different Research Fields

    Science.gov (United States)

    Oki, Kazuya; Sawaragi, Tetsuo; Hasebe, Shinji; Morisawa, Shinsuke

    New education program to train graduate students and postdoctoral researchers who can be good leaders in a variety of social fields by cooperation of graduate school of engineering and pharmaceutical sciences is conducted as an advanced activity in Kyoto University. This program consists of four sub-programs and the educational effect by the collaboration of industry-government-academic and the interaction between dissimilar research fields is described in this paper. Trainees in this program acquire the ability to understand objectively one’ s research from comprehensive point of view and to debate with researchers in different fields. This program supports them to become ‘Global Leaders’ who play an important role internationally in advanced technology.

  8. Flora and Field Guide References Supporting All U.S. Army Corps of Engineers Wetland Regional Supplements

    Science.gov (United States)

    2011-11-01

    Guide. Bloomington, IN: Indiana University Press. Jones, A. 1992. Aster and Brachyactis (Asteraceae) in Oklahoma. Sida Bot. Miscellany No. 8. Fort...author. Jones, A. 1992. Aster and Brachyactis (Asteraceae) in Oklahoma. Sida Bot. Miscellany No. 8. Fort Worth, TX: Research Institute of Texas...Agricultural Experiment Station. Jones, A. 1992. Aster and Brachyactis (Asteraceae) in Oklahoma. Sida Bot. Miscellany No. 8. Fort Worth, TX: Research

  9. Closing the Gap Between Research and Field Applications for Multi-UAV Cooperative Missions

    Science.gov (United States)

    2013-09-01

    REPORT DATE September 2013 3. REPORT TYPE AND DATES COVERED Master’s Thesis 4. TITLE AND SUBTITLE CLOSING THE GAP BETWEEN RESEARCH AND FIELD...iii Approved for public release; distribution is unlimited CLOSING THE GAP BETWEEN RESEARCH AND FIELD APPLICATIONS FOR MULTI-UAV COOPERATIVE...the report is to lay the groundwork for future analysis in multi-UAV analysis to close the gap between existing research and efficient multi-UAV

  10. Reclamation of peat winning fields - a literature review with special reference to the establishment of forest stands

    International Nuclear Information System (INIS)

    Haanell, B.; Svensson, Johan; Magnusson, Tord.

    1996-01-01

    The aim of this study was to review existing knowledge on various methods for reclaiming peat winning fields, in order to assess the present and future potential of the afforestation alternative for Swedish fields. From this, a decision on the best use of an existing series of afforestation experiments established after peat winning in central and south Sweden should be made. The study deals with experiences from e.g. growing crops and energy forests, creating artificial lakes, pastures, and berry fields, wetland restoration, and afforestation by planting and by natural seeding from nearby forests. It was concluded that afforestation most likely will be one of the most common after-use alternatives in near future in Sweden, and that priority will be given to extensive afforestation methods. The studies in the afforestation experiments should therefore be focused on (1) the possibilities of natural establishment of seedlings by seeding from nearby forests, (2) the suitability of various tree species for planting, and (3) the need for plant nutrient amendments to secure sustainable site productivity and the possibilities to meet this need by using wood ash as fertilizer. 129 refs

  11. Accuracy of Acuros XB and AAA dose calculation for small fields with reference to RapidArc stereotactic treatments

    International Nuclear Information System (INIS)

    Fogliata, Antonella; Nicolini, Giorgia; Clivio, Alessandro; Vanetti, Eugenio; Cozzi, Luca

    2011-01-01

    Purpose: To assess the accuracy against measurements of two photon dose calculation algorithms (Acuros XB and the Anisotropic Analytical algorithm AAA) for small fields usable in stereotactic treatments with particular focus on RapidArc. Methods: Acuros XB and AAA were configured for stereotactic use. Baseline accuracy was assessed on small jaw-collimated open fields for different values for the spot sizes parameter in the beam data: 0.0, 0.5, 1, and 2 mm. Data were calculated with a grid of 1 x 1 mm 2 . Investigated fields were: 3 x 3, 2 x 2, 1 x 1, and 0.8 x 0.8 cm 2 with a 6 MV photon beam generated from a Clinac2100iX (Varian, Palo Alto, CA). Profiles, PDD, and output factors were measured in water with a PTW diamond detector (detector size: 4 mm 2 , thickness 0.4 mm) and compared to calculations. Four RapidArc test plans were optimized, calculated and delivered with jaw settings J3 x 3, J2 x 2, and J1 x 1 cm 2 , the last was optimized twice to generate high (H) and low (L) modulation patterns. Each plan consisted of one partial arc (gantry 110 deg. to 250 deg.), and collimator 45 deg. Dose to isocenter was measured in a PTW Octavius phantom and compared to calculations. 2D measurements were performed by means of portal dosimetry with the GLAaS method developed at authors' institute. Analysis was performed with gamma pass-fail test with 3% dose difference and 2 mm distance to agreement thresholds. Results: Open square fields: penumbrae from open field profiles were in good agreement with diamond measurements for 1 mm spot size setting for Acuros XB, and between 0.5 and 1 mm for AAA. Maximum MU difference between calculations and measurements was 1.7% for Acuros XB (0.2% for fields greater than 1 x 1 cm 2 ) with 0.5 or 1 mm spot size. Agreement for AAA was within 0.7% (2.8%) for 0.5 (1 mm) spot size. RapidArc plans: doses were evaluated in a 4 mm diameter structure at isocenter and computed values differed from measurements by 0.0, -0.2, 5.5, and -3.4% for

  12. Accuracy of Acuros XB and AAA dose calculation for small fields with reference to RapidArc stereotactic treatments

    Energy Technology Data Exchange (ETDEWEB)

    Fogliata, Antonella; Nicolini, Giorgia; Clivio, Alessandro; Vanetti, Eugenio; Cozzi, Luca [Oncology Institute of Southern Switzerland, Medical Physics Unit, CH-6500 Bellinzona (Switzerland)

    2011-11-15

    Purpose: To assess the accuracy against measurements of two photon dose calculation algorithms (Acuros XB and the Anisotropic Analytical algorithm AAA) for small fields usable in stereotactic treatments with particular focus on RapidArc. Methods: Acuros XB and AAA were configured for stereotactic use. Baseline accuracy was assessed on small jaw-collimated open fields for different values for the spot sizes parameter in the beam data: 0.0, 0.5, 1, and 2 mm. Data were calculated with a grid of 1 x 1 mm{sup 2}. Investigated fields were: 3 x 3, 2 x 2, 1 x 1, and 0.8 x 0.8 cm{sup 2} with a 6 MV photon beam generated from a Clinac2100iX (Varian, Palo Alto, CA). Profiles, PDD, and output factors were measured in water with a PTW diamond detector (detector size: 4 mm{sup 2}, thickness 0.4 mm) and compared to calculations. Four RapidArc test plans were optimized, calculated and delivered with jaw settings J3 x 3, J2 x 2, and J1 x 1 cm{sup 2}, the last was optimized twice to generate high (H) and low (L) modulation patterns. Each plan consisted of one partial arc (gantry 110 deg. to 250 deg.), and collimator 45 deg. Dose to isocenter was measured in a PTW Octavius phantom and compared to calculations. 2D measurements were performed by means of portal dosimetry with the GLAaS method developed at authors' institute. Analysis was performed with gamma pass-fail test with 3% dose difference and 2 mm distance to agreement thresholds. Results: Open square fields: penumbrae from open field profiles were in good agreement with diamond measurements for 1 mm spot size setting for Acuros XB, and between 0.5 and 1 mm for AAA. Maximum MU difference between calculations and measurements was 1.7% for Acuros XB (0.2% for fields greater than 1 x 1 cm{sup 2}) with 0.5 or 1 mm spot size. Agreement for AAA was within 0.7% (2.8%) for 0.5 (1 mm) spot size. RapidArc plans: doses were evaluated in a 4 mm diameter structure at isocenter and computed values differed from measurements by 0.0, -0

  13. A global reference database from very high resolution commercial satellite data and methodology for application to Landsat derived 30 m continuous field tree cover data

    Science.gov (United States)

    Pengra, Bruce; Long, Jordan; Dahal, Devendra; Stehman, Stephen V.; Loveland, Thomas R.

    2015-01-01

    The methodology for selection, creation, and application of a global remote sensing validation dataset using high resolution commercial satellite data is presented. High resolution data are obtained for a stratified random sample of 500 primary sampling units (5 km  ×  5 km sample blocks), where the stratification based on Köppen climate classes is used to distribute the sample globally among biomes. The high resolution data are classified to categorical land cover maps using an analyst mediated classification workflow. Our initial application of these data is to evaluate a global 30 m Landsat-derived, continuous field tree cover product. For this application, the categorical reference classification produced at 2 m resolution is converted to percent tree cover per 30 m pixel (secondary sampling unit)for comparison to Landsat-derived estimates of tree cover. We provide example results (based on a subsample of 25 sample blocks in South America) illustrating basic analyses of agreement that can be produced from these reference data. Commercial high resolution data availability and data quality are shown to provide a viable means of validating continuous field tree cover. When completed, the reference classifications for the full sample of 500 blocks will be released for public use.

  14. References on the Study and Research of Public External Operational Audit of Structural Non-reimbursable Funds an Epistemological Approach

    Directory of Open Access Journals (Sweden)

    Constantin AFANASE

    2011-01-01

    Full Text Available The International Auditing and Assurance Standards Board (IAASB of the International Federation of Accountants (IFAC is the international organism of standardization in the auditing field [1]. In our opinion, the theories, the methodologies and the standards issued by the mentioned organism, are still the paradigms with the most significant impact on audit rules and practices. Since some theorists define accounting as a social applied science, we can also affirm that the audit activity has a social role [2]. We intend to treat the mentioned subject not only from gnoseological point of view, in other words, we won’t just broaden the current theories and practices. In research, beside the theoretical analysis work, we intend to have a critical attitude both regarding previous research and defining and spreading innovative ideas relating to the suggested topic, as well. We may say that studying theorists work who are linked to the field news, in order to formulate the rules of good practice is an epistemological matter. From the epistemological point of view, in auditing, we operate with valuable judgments, namely evaluations or practical assessments of the phenomenon which our work can influence by adopting an approval or disapproval attitude. Improving the audit of operations financed from external grants can and should be a leverage of the utmost importance for their strategic absorption, implementation according to the agreements signed with the European Commission under the full protection of EU financial interests. The present project is focused on increasing the optimization of audit procedures and techniques as regards grants audit operations so that their implementation to be transparent, effective, efficient and economic for the national economy, and complying with the financial interests of the European Union. The challenge of this approach is caused by the fact that the external public audit of the external funded grants should fully

  15. Cynefin as Reference Framework to Facilitate Insight and Decision-Making in Complex Contexts of Biomedical Research

    Directory of Open Access Journals (Sweden)

    Gerd Kempermann

    2017-11-01

    Full Text Available The Cynefin scheme is a concept of knowledge management, originally devised to support decision making in management, but more generally applicable to situations, in which complexity challenges the quality of insight, prediction, and decision. Despite the fact that life itself, and especially the brain and its diseases, are complex to the extent that complexity could be considered their cardinal feature, complex problems in biomedicine are often treated as if they were actually not more than the complicated sum of solvable sub-problems. Because of the emergent properties of complex contexts this is not correct. With a set of clear criteria Cynefin helps to set apart complex problems from “simple/obvious,” “complicated,” “chaotic,” and “disordered” contexts in order to avoid misinterpreting the relevant causality structures. The distinction comes with the insight, which specific kind of knowledge is possible in each of these categories and what are the consequences for resulting decisions and actions. From student's theses over the publication and grant writing process to research politics, misinterpretation of complexity can have problematic or even dangerous consequences, especially in clinical contexts. Conceptualization of problems within a straightforward reference language like Cynefin improves clarity and stringency within projects and facilitates communication and decision-making about them.

  16. Partitioning and transmutation. Current developments - 2010. A report from the Swedish reference group for PT-research

    Energy Technology Data Exchange (ETDEWEB)

    Blomgren, Jan (ed.) (Swedish Centre for Nuclear Technology, SKC, Stockholm (Sweden)); Karlsson, Fred (Swedish Nuclear Fuel and Waste Management Co., Stockholm (Sweden)); Pomp, Stephan (Uppsala Univ., Uppsala, Dept. of Physics and Astronomy, Div. of Applied Nuclear Physics (Sweden)); Aneheim, Emma; Ekberg, Christian; Fermvik, Anna; Skarnemark, Gunnar (Nuclear Chemistry, Dept. of Chemical and Biological Engineering, Chalmers Univ. of Technology, Goeteborg (Sweden)); Wallenius, Janne; Zakova, Jitka (Reactor Physics Div., Physics Dept., Royal Inst. of Technology, Stockholm (Sweden)); Grenthe, Ingemar; Szabo, Zoltan (School of Chemical Science and Engineering, Royal Inst. of Technology, Stockholm (Sweden))

    2010-01-15

    reprocessing of transmutation fuel require considerable development that cannot be conducted in full until the fuel has been better specified. Such development for an advanced fuel cycle will thus need additional time. PT is no longer seen as a method to 'clean up' as part of a nuclear phase-out; it is rather viewed as an integral part of a sustainable nuclear energy system, in which fast reactors play the major role in handling plutonium, and incineration of minor actinides by ADS is performed to reduce the radiotoxicity of the wastes from fast reactors. If ADS should be used at all, it seems today as there is close to global consensus that a double-strata concept is the most likely option. From a Swedish perspective it is important to participate in the international development and maintain a reasonable level of competence within the country. The competence developed by research on P and T is valuable not only for evaluating the progress potential within this field but also for development of safety and fuel supply at existing nuclear facilities. Recently, a generation change has taken place at the Swedish university research groups active in nuclear-power related research, and presently the activities grow rapidly, both due to increased interest in research and a larger need for education. The leading scientists in the new generation have all of them worked in projects supported by SKB and SKC,most of them have been involved in P and T research. Thereby, the P and T research has already played a crucial role in the Swedish nuclear competence management

  17. Partitioning and transmutation. Current developments - 2010. A report from the Swedish reference group for PT-research

    International Nuclear Information System (INIS)

    Blomgren, Jan; Karlsson, Fred; Pomp, Stephan; Aneheim, Emma; Ekberg, Christian; Fermvik, Anna; Skarnemark, Gunnar; Wallenius, Janne; Zakova, Jitka; Grenthe, Ingemar; Szabo, Zoltan

    2010-01-01

    reprocessing of transmutation fuel require considerable development that cannot be conducted in full until the fuel has been better specified. Such development for an advanced fuel cycle will thus need additional time. PT is no longer seen as a method to 'clean up' as part of a nuclear phase-out; it is rather viewed as an integral part of a sustainable nuclear energy system, in which fast reactors play the major role in handling plutonium, and incineration of minor actinides by ADS is performed to reduce the radiotoxicity of the wastes from fast reactors. If ADS should be used at all, it seems today as there is close to global consensus that a double-strata concept is the most likely option. From a Swedish perspective it is important to participate in the international development and maintain a reasonable level of competence within the country. The competence developed by research on P and T is valuable not only for evaluating the progress potential within this field but also for development of safety and fuel supply at existing nuclear facilities. Recently, a generation change has taken place at the Swedish university research groups active in nuclear-power related research, and presently the activities grow rapidly, both due to increased interest in research and a larger need for education. The leading scientists in the new generation have all of them worked in projects supported by SKB and SKC,most of them have been involved in P and T research. Thereby, the P and T research has already played a crucial role in the Swedish nuclear competence management

  18. The Possibility of Developing Researches in the Legal Field Making use of the Qualitative Approach Methodology

    Directory of Open Access Journals (Sweden)

    Adriana Ferreira Serafim de Oliveira

    2016-10-01

    Full Text Available This article, through the deductive research, discusses the possibility to research in the field of legal sciences through the qualitative methodology used in the researches in Human Sciences. The north for this study was given by the qualitative methodology to the exploration of the content of the bibliography interdisciplinary elected in Law and Education areas, considering the object of the study the connection of the objects of the research in these areas. Education, in Human Sciences, uses this approach to investigate facts through documentary or field research and the same methodology can be applied in the Law area.

  19. Contracts for field projects and supporting research on enhanced oil recovery. Progress review No. 89

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-04-01

    Summaries are presented for the DOE contracts related to supported research for thermal recovery of petroleum, geoscience technology, and field demonstrations in high-priority reservoir classes. Data included for each project are: title, contract number, principal investigator, research organization, beginning date, expected completion date, amount of award, objectives of the research, and summary of technical progress.

  20. Determination of uncertainty of automated emission measuring systems under field conditions using a second method as a reference

    Energy Technology Data Exchange (ETDEWEB)

    Puustinen, H.; Aunela-Tapola, L.; Tolvanen, M.; Vahlman, T. [VTT Chemical Technology, Espoo (Finland). Environmental Technology; Kovanen, K. [VTT Building Technology, Espoo (Finland). Building Physics, Building Services and Fire Technology

    1999-09-01

    This report presents a procedure to determine the uncertainty of an automated emission measuring system (AMS) by comparing the results with a second method (REF). The procedure determines the uncertainty of AMS by comparing the final concentration and emission results of AMS and REF. In this way, the data processing of the plant is included in the result evaluation. This procedure assumes that the uncertainty of REF is known and determined in due form. The uncertainty determination has been divided into two cases; varying and nearly constant concentration. The suggested procedure calculates the uncertainty of AMS at the 95 % confidence level by a tabulated t-value. A minimum of three data pairs is required. However, a higher amount of data pairs is desirable, since a low amount of data pairs results in a higher uncertainty of AMS. The uncertainty of AMS is valid only within the range of concentrations at which the tests were carried out. Statistical data processing shows that the uncertainty of the reference method has a significant effect on the uncertainty of AMS, which always becomes larger than the uncertainty of REF. This should be taken into account when testing whether AMS fulfils the given uncertainty limits. Practical details, concerning parallel measurements at the plant, and the costs of the measurement campaign, have been taken into account when suggesting alternative ways for implementing the comparative measurements. (orig.) 6 refs.

  1. Research on Thermal-Field and Sound-Field Coupling Properties of Different Grid Forms

    Directory of Open Access Journals (Sweden)

    Enlai Zhang

    2016-01-01

    Full Text Available The inlet grid and exhaust grid are widely used in engineering machinery products. The process that airflow goes through grids is a complex turbulent flow and directly related to the heat dispersion and aerodynamic noise. The theoretical analysis result shows that the jet noise generated by airflow has a connection with the grid structure form, fluid flowing situation, and heat conduction. In addition, the influences of different grid structure forms (included the round hole, long hole, and square hole and porosity on the heat dissipation and aerodynamic noise were analyzed and presented based on the verified computational fluid dynamics (CFD model. Results show that the heat dispersion and aerodynamic noise of the round hole are most effective under the same porosity; as the porosity increases, the disturbance degree decreases and the noise reduction effect gets better. Finally, the research result provides the scientific basis for improving grid structure and achieving energy saving and noise reduction.

  2. Issues in E-Research: Log In/Out Virtual Fields

    Directory of Open Access Journals (Sweden)

    Shesha Kanta PANGENI

    2017-07-01

    Full Text Available Evolution of technology and its tremendous use in education has changed the ways of educational services in higher education around the world. There is worldwide access to higher education through virtual learning environments. This is a new avenue for 21st century education and within a short time, it has been able to establish new culture of learning i.e. e-learning or online learning. As a result, e-learning has been the greater field for educational research. In this context, this paper focuses on methodological issues of the Internet mediated research (e-Research with particular focus on virtual fields. Paper explores and discusses on possible sources of data, methods of data collection, process of analysis and ethical issues to adopt research with virtual fields. In doing so, the purpose is to reveal answer to the question: how do e-Researchers deal with methodological issues related to collecting data, determining data sources, data analysis/interpretation, and ethical considerations? Paper presents examples from the Internet mediated empirical studies. Conclusion of the paper is that e-field or cyberspace is an avenue for modern researchers. Researchers are supported with various Information Communication Technology (ICT tools for field access, data collection, analysis and interpretation. However, they need to pay full attention to deal with major issues such as locating and gaining access to virtual/Internet-mediated fields, selecting e-participants and working with them, and using varieties of ICT tools for data collection, analysis and interpretation.

  3. Phenomenography and Grounded Theory as Research Methods in Computing Education Research Field

    Science.gov (United States)

    Kinnunen, Paivi; Simon, Beth

    2012-01-01

    This paper discusses two qualitative research methods, phenomenography and grounded theory. We introduce both methods' data collection and analysis processes and the type or results you may get at the end by using examples from computing education research. We highlight some of the similarities and differences between the aim, data collection and…

  4. [Field work, narrative and knowledge production in contemporary ethnographic research: a contribution to the field of health].

    Science.gov (United States)

    Trad, Leny Alves Bomfim

    2012-03-01

    In this article I reflect on the peculiarities of contemporary ethnographic research, highlighting some challenges inherent to this process. The discussion focuses in particular on the following aspects: the limits imposed by the clear reduction in immersion time in the field; the challenges in learning about ethnographic work, either in the process of observation or interaction in the field, or in the task of textual production; issues of an epistemological and ethical nature that deserve particular attention on the part of practitioners of the ethnographic approach and the scientific community in general. It is especially appropriate to foster debate around the ethnographic method, addressing its peculiarities, operational complexity and potential as a tool for knowledge production, in the sphere of health/public health, bearing in mind the marked increase of this approach in this field.

  5. Deep Vadose Zone–Applied Field Research Initiative Fiscal Year 2012 Annual Report

    Energy Technology Data Exchange (ETDEWEB)

    Wellman, Dawn M.; Truex, Michael J.; Johnson, Timothy C.; Bunn, Amoret L.; Golovich, Elizabeth C.

    2013-03-14

    This annual report describes the background of the Deep Vadose Zone-Applied Field Research Initiative, and some of the programmatic approaches and transformational technologies in groundwater and deep vadose zone remediation developed during fiscal year 2012.

  6. THE CURRENT STATE OF KNOWLEDGE IN THE VALUE RELEVANCE RESEARCH FIELD

    OpenAIRE

    Carmen- Alexandra BALTARIU

    2015-01-01

    The purpose of this paper is to assess the scientific literature referring to the value relevance of reported accounting information over a twelve year period starting from 2002. The approach of the paper is a theoretical (conceptual) one. In order to complete the purpose of the paper we selected as research method the longitudinal qualitative analysis. The qualitative analysis carried out presents a deductive character. Our conclusions regarding the general characteristics of the research fi...

  7. Research, Practice and Theory in Didactics of Mathematics: Towards Dialogue between Different Fields

    Science.gov (United States)

    Bussi, Maria G. Bartolini; Bazzini, Luciana

    2003-01-01

    Acknowledging the complex relationships which the field of didactics of mathematics has with other research fields (e.g. mathematics, educational sciences, epistemology, history, psychology, semiotics, sociology, cognitive science), the authors analyze in this paper some cases of fruitful and some of failed dialogue between experts of the…

  8. Heterogeneous mass transfer in HRE in the presence of electrostatic field research

    Science.gov (United States)

    Reshetnikov, S. M.; Zyryanov, I. A.; Budin, A. G.; Pozolotin, A. P.

    2017-01-01

    The paper presents research results of polymethylmethacrylate (PMMA) combustion in a hybrid rocket engine (HRE) under the influence of an electrostatic field. It is shown that the main mechanism of electrostatic field influence on the combustion rate is process changes in the condensed phase.

  9. Exploring the Adult Learning Research Field by Analysing Who Cites Whom

    Science.gov (United States)

    Nylander, Erik; Österlund, Lovisa; Fejes, Andreas

    2018-01-01

    In this article we report on findings from a large-scale bibliographic study conducted based on the citation practices within the field of research on adult learning. Our data consist of 151,261 citation links between more than 33,000 different authors whose papers were published in five leading international journals in the field of adult…

  10. Research Note The reliability of a field test kit for the detection and ...

    African Journals Online (AJOL)

    Research Note The reliability of a field test kit for the detection and the persistence of ... Open Access DOWNLOAD FULL TEXT ... The objectives were to test a field kit for practicality and reliability, to assess the spread of the bacteria among ...

  11. Field and laboratory notes on instream research - Research and Development of New Marking and Monitoring Technologies

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This project addresses how to expand the current fish-tracking technologies to enable the fisheries community to successfully carry out the actions, research, and...

  12. The power of research exploration within education: lessons from an international field hydrology course

    Science.gov (United States)

    Abou Najm, M. R.; Stewart, R. D.; Rupp, D. E.; Selker, J. S.; Lane, J. W.; Casanova, F.; Arumí, J.; Rivera, D.

    2011-12-01

    Educating the next generation of scientists requires new educational methods and unconventional approaches to facilitate the interdisciplinary scholarship required to cope with fast-paced developments in the geosciences. We believe incorporation of field training with active research missions is an effective educational model. By participating in active research and open science dialogue, students are exposed to real-world examples of the principles and processes of complex systems in a manner that allows them to develop a deeper understanding of the subject. We find students are highly motivated by the knowledge that data they collect will advance the research mission; such an environment stokes their passions and imaginations and allows the students to explore the roots of their interest in geoscience. In this context, a two-week educational field course on hydrologic processes and measurements was integrated with ongoing research in Chile to understand the effect of soil shrinkage and swelling properties on watershed hydrologic response. Students witnessed the iterative process of field-experiment design and became part of science in the making. They experienced the complexity of field work and developed problem-solving skills through the myriad of challenges presented in the acquisition of field data in a remote area. All of these factors contributed to an atmosphere of creativity that led to an outstanding research and educational experience. We find the coupling of field training with active research to be extremely rewarding, and time- and cost-effective education in this fast-paced and cost-cautious age.

  13. Survey of welding processes for field fabrication of 2 1/4 Cr-1 Mo steel pressure vessels. [128 references

    Energy Technology Data Exchange (ETDEWEB)

    Grotke, G.E.

    1980-04-01

    Any evaluation of fabrication methods for massive pressure vessels must consider several welding processes with potential for heavy-section applications. These include submerged-arc and shielded metal-arc, narrow-joint modifications of inert-gas metal-arc and inert-gas tungsten-arc processes, electroslag, and electron beam. The advantage and disadvantages of each are discussed. Electroslag welding can be dropped from consideration for joining of 2 1/4 Cr-1 Mo steel because welds made with this method do not provide the required mechanical properties in the welded and stress relieved condition. The extension of electron-beam welding to sections as thick as 4 or 8 inches (100 or 200 mm) is too recent a development to permit full evaluation. The manual shielded metal-arc and submerged-arc welding processes have both been employed, often together, for field fabrication of large vessels. They have the historical advantage of successful application but present other disadvantages that make them otherwise less attractive. The manual shielded metal-arc process can be used for all-position welding. It is however, a slow and expensive technique for joining heavy sections, requires large amounts of skilled labor that is in critically short supply, and introduces a high incidence of weld repairs. Automatic submerged-arc welding has been employed in many critical applications and for welding in the flat position is free of most of the criticism that can be leveled at the shielded metal-arc process. Specialized techniques have been developed for horizontal and vertical position welding but, used in this manner, the applications are limited and the cost advantage of the process is lost.

  14. Ecological restoration of mineland with particular reference to the metalliferous mine wasteland in China: A review of research and practice.

    Science.gov (United States)

    Li, M S

    2006-03-15

    Despite a principal contributor to the rapid economic growth, the mining industry in China produced a large amount of wasteland and caused water pollution and soil erosion as well as other environmental damages. In 2002, this industry generated 265.4 Mt tailings, 130.4 Mt gangue and 107.8 Mt smelting slags. The degraded land associated with mining is estimated to be 3.2 Mha by the end of 2004, deteriorating the land shortage of China. Restoration of mine wasteland began in late 1970s but the restoration process was sluggish. The overall restoration rate (the ratio of reclaimed land area to the total degraded land area) of mine wasteland was some 10-12% with a higher rate for coal mine spoils but a lower rate for metal-mined derelict land. From 1994 to 2004, 149 research papers were published about the restoration of China's mining wasteland, of which 70 were on metal-mined land and 61 on the non-metal-mined land. Although 37 institutions in China were involved in the restoration research, only a few remained active and productive. Metal-mined derelict land is often more metal toxic and deficient of macronutrients and is tougher for revegetation. Many substrate amelioration techniques were proposed and tolerant plant species were tested for use of reclamation of the metal-mined tailings. Five hyperaccumulator species have been reported in China for the potential use in phytoremediation. However, these accomplishments were all at laboratory or small-scale field demonstration stage and still far from the practical use in reality. To accelerate the restoration and utilization of mine wasteland, several recommendations are put forward in this review. Above these suggestions, the commitment and efficiency of the government at all levels are vital.

  15. Second-order perturbation theory with a density matrix renormalization group self-consistent field reference function: theory and application to the study of chromium dimer.

    Science.gov (United States)

    Kurashige, Yuki; Yanai, Takeshi

    2011-09-07

    We present a second-order perturbation theory based on a density matrix renormalization group self-consistent field (DMRG-SCF) reference function. The method reproduces the solution of the complete active space with second-order perturbation theory (CASPT2) when the DMRG reference function is represented by a sufficiently large number of renormalized many-body basis, thereby being named DMRG-CASPT2 method. The DMRG-SCF is able to describe non-dynamical correlation with large active space that is insurmountable to the conventional CASSCF method, while the second-order perturbation theory provides an efficient description of dynamical correlation effects. The capability of our implementation is demonstrated for an application to the potential energy curve of the chromium dimer, which is one of the most demanding multireference systems that require best electronic structure treatment for non-dynamical and dynamical correlation as well as large basis sets. The DMRG-CASPT2/cc-pwCV5Z calculations were performed with a large (3d double-shell) active space consisting of 28 orbitals. Our approach using large-size DMRG reference addressed the problems of why the dissociation energy is largely overestimated by CASPT2 with the small active space consisting of 12 orbitals (3d4s), and also is oversensitive to the choice of the zeroth-order Hamiltonian. © 2011 American Institute of Physics

  16. Research Into the Role of Students’ Affective Domain While Learning Geology in Field Environments

    Science.gov (United States)

    Elkins, J.

    2009-12-01

    Existing research programs in field-based geocognition include assessment of cognitive, psychomotor, and affective domains. Assessment of the affective domain often involves the use of instruments and techniques uncommon to the geosciences. Research regarding the affective domain also commonly results in the collection and production of qualitative data that is difficult for geoscientists to analyze due to their lack of familiarity with these data sets. However, important information about students’ affective responses to learning in field environments can be obtained by using these methods. My research program focuses on data produced by students’ affective responses to field-based learning environments, primarily among students at the introductory level. For this research I developed a Likert-scale Novelty Space Survey, which presents student ‘novelty space’ (Orion and Hofstien, 1993) as a polygon; the larger the polygons, the more novelty students are experiencing. The axises for these polygons correspond to novelty domains involving geographic, social, cognitive, and psychological factors. In addition to the Novelty Space Survey, data which I have collected/generated includes focus group interviews on the role of recreational experiences in geology field programs. I have also collected data concerning the motivating factors that cause students to take photographs on field trips. The results of these studies give insight to the emotional responses students have to learning in the field and are important considerations for practitioners of teaching in these environments. Collaborative investigations among research programs that cross university departments and include multiple institutions is critical at this point in development of geocognition as a field due to unfamiliarity with cognitive science methodology by practitioners teaching geosciences and the dynamic nature of field work by cognitive scientists. However, combining the efforts of cognitive

  17. Phonological loop affects children's interpretations of explicit but not ambiguous questions: Research on links between working memory and referent assignment.

    Science.gov (United States)

    Meng, Xianwei; Murakami, Taro; Hashiya, Kazuhide

    2017-01-01

    Understanding the referent of other's utterance by referring the contextual information helps in smooth communication. Although this pragmatic referential process can be observed even in infants, its underlying mechanism and relative abilities remain unclear. This study aimed to comprehend the background of the referential process by investigating whether the phonological loop affected the referent assignment. A total of 76 children (43 girls) aged 3-5 years participated in a reference assignment task in which an experimenter asked them to answer explicit (e.g., "What color is this?") and ambiguous (e.g., "What about this?") questions about colorful objects. The phonological loop capacity was measured by using the forward digit span task in which children were required to repeat the numbers as an experimenter uttered them. The results showed that the scores of the forward digit span task positively predicted correct response to explicit questions and part of the ambiguous questions. That is, the phonological loop capacity did not have effects on referent assignment in response to ambiguous questions that were asked after a topic shift of the explicit questions and thus required a backward reference to the preceding explicit questions to detect the intent of the current ambiguous questions. These results suggest that although the phonological loop capacity could overtly enhance the storage of verbal information, it does not seem to directly contribute to the pragmatic referential process, which might require further social cognitive processes.

  18. Phonological loop affects children's interpretations of explicit but not ambiguous questions: Research on links between working memory and referent assignment.

    Directory of Open Access Journals (Sweden)

    Xianwei Meng

    Full Text Available Understanding the referent of other's utterance by referring the contextual information helps in smooth communication. Although this pragmatic referential process can be observed even in infants, its underlying mechanism and relative abilities remain unclear. This study aimed to comprehend the background of the referential process by investigating whether the phonological loop affected the referent assignment. A total of 76 children (43 girls aged 3-5 years participated in a reference assignment task in which an experimenter asked them to answer explicit (e.g., "What color is this?" and ambiguous (e.g., "What about this?" questions about colorful objects. The phonological loop capacity was measured by using the forward digit span task in which children were required to repeat the numbers as an experimenter uttered them. The results showed that the scores of the forward digit span task positively predicted correct response to explicit questions and part of the ambiguous questions. That is, the phonological loop capacity did not have effects on referent assignment in response to ambiguous questions that were asked after a topic shift of the explicit questions and thus required a backward reference to the preceding explicit questions to detect the intent of the current ambiguous questions. These results suggest that although the phonological loop capacity could overtly enhance the storage of verbal information, it does not seem to directly contribute to the pragmatic referential process, which might require further social cognitive processes.

  19. A Qualitative Research on Educational Fields on which Universities Positioned Themselves in Turkey

    Directory of Open Access Journals (Sweden)

    Kahraman ÇATI

    2016-10-01

    Full Text Available The aim of this study is to determine the educational fields on which universities position themselves in Turkey. The population of the research consists of state and private universities in Turkey. In this study, qualitative research design was used and data were collected by document review technique.The research data was obtained by analyzing introductory videos of universities in their websites. In this context, 90 introductory videos of universities were collected. The data obtained was analyzed with descriptive analysis technique. the result of the study showed that 49 out of 90 universities positioned themselves in the field of education. Medical, engineering, and economics and administrative sciences were mostly emphasized educational fields. The result of the study led to the conclusion, 41 universities analyzing introductory videos did not position themselves in the field of education.

  20. Research activities in the fields of radiochemistry and neutron activation analysis using the LENA nuclear plant in Pavia

    International Nuclear Information System (INIS)

    Maggi, L.; Genova, N.; DiCasa, M.; Carmella-Crespi, V.

    1978-01-01

    In the past two years the activity of the Radiochemistry Laboratory and CNR Centre of Radiochemistry and Activation Analysis was mainly devoted to studies of nuclear activation analysis applied to different fields using the LENA reactor. Three NBS vegetable reference standards, Orchard Leaves, Tomato Leaves and Pine Needles, were analyzed for their halogen content. Halogen determination in foodstuff, vegetables and organic tissues gives valuable information on metabolic, nutritional, pollution and epidemiological fields. A detailed study on macro- and micro-elements content in Sardinian coal and its ashes was performed, in order to assess the possibility of using it as a fuel in electric power generating plants. Instrumental neutron activation analysis was used for the determination of Al, Si, Mn, Mg, Na, V, CI, Ce, Yb, Th, Cr, Hf, Cs, Se, Rb, Fe, Co, Ta, Eu, K, La and Sb. A multielement trace analysis of rock samples was developed in cooperation with scientists from other Universities; the determination of R.E., U, Th, Zr, Cs, Ba, Ni, Sc, Ta, Hf, Sr, and Cr by instrumental neutron activation analysis was carried out in connection with orogenetic studies of African Rocks. In the archaeological field ancient artefacts recently discovered during a digging campaign at Monza's Cathedral (Italy) were analyzed with the aim to trace their origin and compare their composition with similar samples whose dating is certain. As a contribute to the international program of certifying NBS reference standard materials, chromium in the Brewer's Yeast, recently proposed as a new SRM, was determined by both instrumental and destructive neutron activation analysis. In the study of the role and behaviour of trace elements in human physiology, vanadium was investigated in human blood, as a trace element of increasing interest in connection with its origin from pollutants. Nuclear activation analysis was also applied to marine organism samples under a contract for oceanographic research

  1. Research field development ou iron-sulfur proteins by the Moessbauer spectroscopy and EPR

    International Nuclear Information System (INIS)

    Arsenio, T.P.; Taft, C.A.

    1984-01-01

    A research line on iron sulfides (chemical and structurally seemed with the iron-sulfur proteins), implanted and developed at CBPF-Brazil, using the same theoretical and experimental models used in the development of the research field on iron-sulfur proteins is reported. The techniques used are Moessbauer spectroscopy and EPR. (L.C.) [pt

  2. Early Environmental Field Research Career Exploration: An Analysis of Impacts on Precollege Apprentices

    Science.gov (United States)

    Flowers, Susan K.; Beyer, Katherine M.; Pérez, Maria; Jeffe, Donna B.

    2016-01-01

    Research apprenticeships offer opportunities for deep understanding of scientific practice, transparency about research careers, and possible transformational effects on precollege youth. We examined two consecutive field-based environmental biology apprenticeship programs designed to deliver realistic career exploration and connections to…

  3. Computer-based measurement and automatizatio aplication research in nuclear technology fields

    International Nuclear Information System (INIS)

    Jiang Hongfei; Zhang Xiangyang

    2003-01-01

    This paper introduces computer-based measurement and automatization application research in nuclear technology fields. The emphasis of narration are the role of software in the development of system, and the network measurement and control software model which has optimistic application foreground. And presents the application examples of research and development. (authors)

  4. Outline of results of safety research (in nuclear fuel cycle field in fiscal year 1996)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-12-01

    The safety research in Power Reactor and Nuclear Fuel Development Corporation in fiscal year 1996 has been carried out based on the basic plan of safety research (from fiscal year 1996 to 2000) which was decided in March, 1996. In this report, on nuclear fuel cycle field, namely all the subjects in the fields of nuclear fuel facilities, environmental radioactivity and waste disposal, and the subjects related to nuclear fuel facilities among the fields of aseismatic and probabilistic safety assessments, the results of research in fiscal year 1996, the first year of the 5-year project, are summarized together with the outline of the basic plan of safety research. The basic policy, objective and system for promotion of the safety research are described. The objectives of the safety research are the advancement of safety technology, the safety of facilities, stable operation techniques, the safety design and the evaluation techniques of next generation facilities, and the support of transferring nuclear fuel cycle to private businesses. The objects of the research are uranium enrichment, fuel fabrication and reprocessing, and waste treatment and storage. 52 investigation papers of the results of the safety research in nuclear fuel cycle field in fiscal year 1996 are collected in this report. (K.I.)

  5. Elevating the Role of Race in Ethnographic Research: Navigating Race Relations in the Field

    Science.gov (United States)

    Brown, Keffrelyn D.

    2011-01-01

    Little work in the social sciences or in the field of education has fully explored the methodological issues related to the study of race and racism, yet qualitative researchers acknowledge that race plays (and should play) a role in the research process. Indeed, race frames and informs the context, practices and perspectives of everyday lived…

  6. Cross-Border Higher Education in China: How the Field of Research Has Developed

    Science.gov (United States)

    Qin, Yunyun; Te, Alice Y. C.

    2016-01-01

    The aim of the research was to investigate how the field of cross-border Chinese higher education has developed from 1990 to 2015. Ninety-five articles in international journals and 470 articles in national journals were collected and analyzed in terms of authorship pattern, thematic clusters, and research methods. Results show that cross-border…

  7. The field-tested and grounded technological rule as product of mode 2 management research

    NARCIS (Netherlands)

    Aken, van J.E.

    2004-01-01

    The relevance problem of academic management research in organization and management is an old and thorny one. Recent discussions on this issue have resulted in proposals to use more Mode 2 knowledge production in our field. These discussions focused mainly on the process of research itself and less

  8. Constituting the Field: An Essay on Harry Torrance's "Qualitative Research Methods in Education"

    Science.gov (United States)

    Dimitriadis, Greg

    2011-01-01

    This article critically explores Harry Torrance's four-volume edited collection "Qualitative Research Methods in Education." The author argues that this text is an important intervention in the constitution of a meta-discourse on qualitative research today. Torrance pays particular attention to the field of education, providing much needed…

  9. Research on the Field of Education Policy: Exploring Different Levels of Approach and Abstraction

    Science.gov (United States)

    Mainardes, Jefferson; Tello, César

    2016-01-01

    This paper, of theoretical nature, explores the levels of approach and abstraction of research in the field of education policy: description, analysis and understanding. Such categories were developed based on concepts of Bourdieu's theory and on the grounds of epistemological studies focused on education policy and meta-research. This paper…

  10. A Decade of Field Changing Atmospheric Aerosol Research: Outcomes of EPA’s STAR Program

    Science.gov (United States)

    Conference: Gordon Research Conference in Atmospheric Chemistry, July 28 – August 2, 2013, VermontPresentation Type: PosterTitle: An Analysis of EPA’s STAR Program and a Decade of Field Changing Research in Atmospheric AerosolsAuthors: Kristina M. Wagstrom1,2, Sherri ...

  11. Field astrobiology research instruments and methods in moon-mars analogue site.

    NARCIS (Netherlands)

    Foing, B.H.; Stoker, C.; Zavaleta, J.; Ehrenfreund, P.; Sarrazin, P.; Blake, D.; Page, J.; Pletser, V.; Hendrikse, J.; Oliveira Lebre Direito, M.S.; Kotler, M.; Martins, Z.; Orzechowska, G.; Thiel, C.S.; Clarke, J.; Gross, J.; Wendt, L.; Borst, A.; Peters, S.; Wilhelm, M.-B.; Davies, G.R.; EuroGeoMars 2009 Team, ILEWG

    2011-01-01

    We describe the field demonstration of astrobiology instruments and research methods conducted in and from the Mars Desert Research Station (MDRS) in Utah during the EuroGeoMars campaign 2009 coordinated by ILEWG, ESA/ESTEC and NASA Ames, with the contribution of academic partners. We discuss the

  12. Analysis of worldwide research in the field of cybernetics during 1997-2011.

    Science.gov (United States)

    Singh, Virender; Perdigones, Alicia; García, José Luis; Cañas-Guerrero, Ignacio; Mazarrón, Fernando R

    2014-12-01

    The study provides an overview of the research activity carried out in the field of cybernetics. To do so, all research papers from 1997 to 2011 (16,445 research papers) under the category of "Computer Science, Cybernetics" of Web of Science have been processed using our in-house software which is developed specifically for this purpose. Among its multiple capabilities, this software analyses individual and compound keywords, quantifies productivity taking into account the work distribution, estimates the impact of each article and determines the collaborations established at different scales. Keywords analysis identifies the evolution of the most important research topics in the field of cybernetics and their specificity in biological aspects, as well as the research topics with lesser interest. The analysis of productivity, impact and collaborations provides a framework to assess research activity in a specific and realistic context. The geographical and institutional distribution of publications reveals the leading countries and research centres, analysing their relation to main research journals. Moreover, collaborations analysis reveals great differences in terms of internationalization and complexity of research networks. The results of this study may be very useful for the characterization and the decisions made by research in the field of cybernetics.

  13. Immersion in a Hudson Valley Tidal Marsh and Climate Research Community - Lamont-Doherty's Secondary School Field Research Program

    Science.gov (United States)

    Peteet, D. M.; Newton, R.; Vincent, S.; Sambrotto, R.; Bostick, B. C.; Schlosser, P.; Corbett, J. E.

    2015-12-01

    A primary advantage of place-based research is the multidisciplinary and interdisciplinary research that can be applied to a single locale, with a depth of continued study through time. Through the last decade, Lamont-Doherty's Secondary School Field Research Program (SSFRP) has promoted scientific inquiry, mostly among groups under-represented in STEM fields, in Piermont Marsh, a federally protected marsh in the Hudson estuary. At the same time, Lamont Doherty Earth Observatory (LDEO) scientists have become more involved, through mentoring by researchers, postdocs and graduate students, often paired with high school teachers. The sustained engagement of high school students in a natural environment, experiencing the Hudson River and its tidal cycles, protection of coastline, water quality improvement, native and invasive plant communities, is fundamental to their understanding of the importance of wetlands with their many ecosystem services. In addition, the Program has come to see "place" as inclusive of the Observatory itself. The students' work at Lamont expands their understanding of educational opportunities and career possibilities. Immersing students in a research atmosphere brings a level of serious inquiry and study to their lives and provides them with concrete contributions that they make to team efforts. Students select existing projects ranging from water quality to Phragmites removal, read papers weekly, take field measurements, produce lab results, and present their research at the end of six weeks. Ongoing results build from year to year in studies of fish populations, nutrients, and carbon sequestration, and the students have presented at professional scientific meetings. Through the Program students gain a sense of ownership over both their natural and the academic environments. Challenges include sustained funding of the program; segmenting the research for reproducible, robust results; fitting the projects to PIs' research goals, time

  14. Application Research of Horn Array Multi-Beam Antenna in Reference Source System for Satellite Interference Location

    Science.gov (United States)

    Zhou, Ping; Lin, Hui; Zhang, Qi

    2018-01-01

    The reference source system is a key factor to ensure the successful location of the satellite interference source. Currently, the traditional system used a mechanical rotating antenna which leaded to the disadvantages of slow rotation and high failure-rate, which seriously restricted the system’s positioning-timeliness and became its obvious weaknesses. In this paper, a multi-beam antenna scheme based on the horn array was proposed as a reference source for the satellite interference location, which was used as an alternative to the traditional reference source antenna. The new scheme has designed a small circularly polarized horn antenna as an element and proposed a multi-beamforming algorithm based on planar array. Moreover, the simulation analysis of horn antenna pattern, multi-beam forming algorithm and simulated satellite link cross-ambiguity calculation have been carried out respectively. Finally, cross-ambiguity calculation of the traditional reference source system has also been tested. The comparison between the results of computer simulation and the actual test results shows that the scheme is scientific and feasible, obviously superior to the traditional reference source system.

  15. Short- and Long-Term Outcomes of Student Field Research Experiences in Special Populations.

    Science.gov (United States)

    Soliman, Amr S; Chamberlain, Robert M

    2016-06-01

    Global health education and training of biomedical students in international and minority health research is expending through U.S. academic institutions. This study addresses the short- and long-term outcomes of an NCI-funded R25 short-term summer field research training program. This program is designed for MPH and Ph.D. students in cancer epidemiology and related disciplines, in international and minority settings (special populations) in a recent 7-year period. Positive short-term outcome of 73 students was measured as publishing a manuscript from the field research data and having a job in special populations. Positive long-term outcome was measured as having a post-doc position, being in a doctoral program, and/or employment in special populations at least 3 years from finishing the program. Significant factors associated with both short- and long-term success included resourcefulness of the student and compatibility of personalities and interests between the student and the on-campus and off-campus mentors. Short-term-success of students who conducted international filed research was associated with visits of the on-campus mentor to the field site. Short-term success was also associated with extent of mentorship in the field site and with long-term success. Future studies should investigate how field research sites could enhance careers of students, appropriateness of the sites for specific training competencies, and how to maximize the learning experience of students in international and minority research sites.

  16. Astrobiology Results from ILEWG EuroMoonMars Analogue Field Research

    Science.gov (United States)

    Foing, Bernard H.

    . v’t Houd (8), A. Bruneau (6,9), M. Cross (6,7), V. Maivald (10), C. Orgel (6), A. Elsaesser (4), S.O.L. Direito (2,4), W.F.M. Röling (2), G.R. Davies (2); EuroGeoMars2009 Team, DOMMEX-ILEWG EuroMoonMars 2010-2013 Teams (1) ESA/ ESTEC, Postbus 299, 2200 AG Noordwik, NL; (2) Vrije Universiteit, Amsterdam, Faculty of Earth & Life Sciences, De Boelelaan 1085, 1081 HV Amsterdam, NL; (3) NASA Ames Research Centre; US; (4) Leiden Institute of Chemistry, NL; (5) Space Policy Institute, GWU, Washington D.C., USA; (6) ILEWG; (7) CPSX; (8) Cerberus Blackshore, ESIC Noordwijk, NL; (9) ENSC Bordeaux; (10) DLR, Bremen References: Foing, Stoker & Ehrenfreund (Editors, 2011) “Astrobiology field Research in Moon/Mars Analogue Environments”, Special Issue of International Journal of Astrobiology , IJA 2011, 10, vol.3. 137-305; [1] Foing B. et al. (2011) Field astrobiology research at Moon-Mars analogue site: Instruments and methods, IJA 2011, 10 (3), 141; [2] Clarke, J., Stoker, C. Concretions in exhumed & inverte channels near Hanksville Utah: implications for Mars, (IJA 2011, 10 (3), 162; [3] Thiel et al., (2011) PCR-based analysis of microbial communities during the EuroGeoMars campaign at Mars Desert Research Station, Utah. (IJA 2011, 10 (3), 177; [4] Direito et al. (2011). A wide variety of putative extremophiles and large beta-diversity at the Mars Desert Research Station (Utah). (IJA 2011, 10 (3), 191; [5] Orzechowska, G. et al (20110 analysis of Mars Analog soils using solid Phase Microextraction, Organics solvent extraction and GCMS, (IJA 2011, 10 (3), 209; [6] Kotler et al. (2011). Analysis of mineral matrices of planetary soils analogs from the Utah Desert. (IJA 2011, 10 (3), 221; [7] Martins et al. (2011). Extraction of amino acids from soils close to the Mars Desert Research Station (MDRS), Utah. (IJA 2011, 10 (3), 231; [8] Ehrenfreund et al. (2011) Astrobiology and habitability studies in preparation for future Mars missions: trends from investigating minerals

  17. Field experiments on solar geoengineering: report of a workshop exploring a representative research portfolio.

    Science.gov (United States)

    Keith, David W; Duren, Riley; MacMartin, Douglas G

    2014-12-28

    We summarize a portfolio of possible field experiments on solar radiation management (SRM) and related technologies. The portfolio is intended to support analysis of potential field research related to SRM including discussions about the overall merit and risk of such research as well as mechanisms for governing such research and assessments of observational needs. The proposals were generated with contributions from leading researchers at a workshop held in March 2014 at which the proposals were critically reviewed. The proposed research dealt with three major classes of SRM proposals: marine cloud brightening, stratospheric aerosols and cirrus cloud manipulation. The proposals are summarized here along with an analysis exploring variables such as space and time scale, risk and radiative forcing. Possible gaps, biases and cross-cutting considerations are discussed. Finally, suggestions for plausible next steps in the development of a systematic research programme are presented.

  18. Field research on the spectral properties of crops and soils, volume 1. [Purdue Agronomy Farm

    Science.gov (United States)

    Bauer, M. E. (Principal Investigator); Biehl, L. L.; Robinson, B. F.

    1980-01-01

    The experiment design, data acquisition and preprocessing, data base management, analysis results and development of instrumentation for the AgRISTARS Supporting Research Project, Field Research task are described. Results of several investigations on the spectral reflectance of corn and soybean canopies as influenced by cultural practices, development stage and nitrogen nutrition are reported as well as results of analyses of the spectral properties of crop canopies as a function of canopy geometry, row orientation, sensor view angle and solar illumination angle are presented. The objectives, experiment designs and data acquired in 1980 for field research experiments are described. The development and performance characteristics of a prototype multiband radiometer, data logger, and aerial tower for field research are discussed.

  19. Research on single-chip microcomputer controlled rotating magnetic field mineralization model

    Science.gov (United States)

    Li, Yang; Qi, Yulin; Yang, Junxiao; Li, Na

    2017-08-01

    As one of the method of selecting ore, the magnetic separation method has the advantages of stable operation, simple process flow, high beneficiation efficiency and no chemical environment pollution. But the existing magnetic separator are more mechanical, the operation is not flexible, and can not change the magnetic field parameters according to the precision of the ore needed. Based on the existing magnetic separator is mechanical, the rotating magnetic field can be used for single chip microcomputer control as the research object, design and trial a rotating magnetic field processing prototype, and through the single-chip PWM pulse output to control the rotation of the magnetic field strength and rotating magnetic field speed. This method of using pure software to generate PWM pulse to control rotary magnetic field beneficiation, with higher flexibility, accuracy and lower cost, can give full play to the performance of single-chip.

  20. The ASTARTE Paleotsunami Deposits data base - web-based references for tsunami research in the NEAM region

    Science.gov (United States)

    De Martini, P. M.; Pantosti, D.; Orefice, S.; Smedile, A.; Patera, A.; Paris, R.; Terrinha, P.; Hunt, J.; Papadopoulos, G. A.; Noiva, J.; Triantafyllou, I.; Yalciner, A. C.

    2017-12-01

    EU project ASTARTE aimed at developing a higher level of tsunami hazard assessment in the North-Eastern Atlantic, the Mediterranean and connected seas (NEAM) region by a combination of field work, experimental work, numerical modeling and technical development. The project was a cooperative work of 26 institutes from 16 countries and linked together the description of past tsunamigenic events, the identification and characterization of tsunami sources, the calculation of the impact of such events, and the development of adequate resilience and risks mitigation strategies (http://www.astarte-project.eu/). Within ASTARTE, a web-based database on Paleotsunami Deposits in the NEAM area was created with the purpose to be the future information repository for tsunami research in the broad region. The aim of the project is the integration of every existing official scientific reports and peer reviewed papers on this topic. The database, which archives information and detailed data crucial for tsunami modeling, will be updated on new entries every 12 months. A relational database managed by ArcGIS for Desktop 10.x software has been implemented. One of the final goals of the project is the public sharing of the archived dataset through a web-based map service that will allow visualizing, querying, analyzing, and interpreting the dataset. The interactive map service is hosted by ArcGIS Online and will deploy the cloud capabilities of the portal. Any interested users will be able to access the online GIS resources through any Internet browser or specific apps that run on desktop machines, smartphones, or tablets and will be able to use the analytical tools, key tasks, and workflows of the service. We will present the database structure (characterized by the presence of two main tables: the Site table and the Event table) and topics as well as their ArcGIS Online version. To date, a total of 151 sites and 220 tsunami evidence have been recorded within the ASTARTE database. The

  1. Panel plenary session: Status and future needs in the field of reactor safety research

    International Nuclear Information System (INIS)

    Finzi, S.; Cicognani, G.; Heusener, G.; Geijzers, H.F.G.; Alonso-Santos, A.; Holtbecker, H.F.

    1990-01-01

    Status and future needs in the field of reactor safety research. Overviews are given of the nuclear programme in France and the Netherlands. Spanish and Italian reactor safety research both current and for the future is outlined. LWR safety and the continuation of the establishment of safety standards particularly for LMFBR reactors is discussed. The new framework for the research in reactor safety by the Commission of the European Communities for 1990-1994 is outlined. The discussion which followed is reported. (UK)

  2. Report of the 2nd research co-ordination meeting on reference materials for microanalytical nuclear techniques

    International Nuclear Information System (INIS)

    2002-01-01

    Many microanalytical procedure require specific natural-matrix reference materials containing very low levels of trace elements and having a high degree of homogeneity. This proposed CRP will specifically address the question of quality control materials for these techniques. The participants of the meeting discussed the requirements for certified reference materials to by used in microanalysis with particular emphasis on the homogeneity issues. This publication contains summary of the discussions along with conclusions and recommendations made by the participants. The publication also contains ten individual presentations delivered by the participants. Each of the individual papers has been provided with an abstract and indexed separately

  3. Restitution of the research data in ethnographic health research: issues for debate based on field research conducted in Brazil and France.

    Science.gov (United States)

    Ferreira, Jaqueline

    2015-09-01

    This study examines relevant aspects about the way anthropological research data restitution has been applied in the area of health, based on data obtained from ethnographic field research conducted in Brazil and France. These experiences show that data restitution has been part of the area of research, in different forms and time frames, making it possible to extend periods spent in the field and to interact with individual respondents. This also made it possible to interact with research interlocutors and compare different points of view, adding new information and thereby enriching the research. These aspects raise important questions that require reflection, from an ethical and epistemological standpoint. One is related to the demands made on health anthropologists when they begin their field research and how they deal with these questions: how will researchers use the data they collect without worrying that this may be wrongly interpreted or used in some way to reinforce normative patterns? So, how should an anthropological debate be "translated"? Conscientious researchers will seek to validate their analysis, to discover new points of view and provoke new lines of questioning. Thus, such data should provoke reflexivity about new avenues of research and interpretations.

  4. PCOR, CER, and CBPR: alphabet soup or complementary fields of health research?

    Science.gov (United States)

    Burke, Jessica G; Jones, Jennifer; Yonas, Michael; Guizzetti, Lisa; Virata, Maria C; Costlow, Monica; Morton, Sally C; Elizabeth, Miller

    2013-12-01

    Comparative effectiveness research (CER) and community- based participatory research (CBPR) are two fields of research that do not have a history of strong collaboration. However, CER and CBPR researchers could benefit from interdisciplinary collaboration to design and implement relevant, timely, action-oriented research. This commentary explores field-specific definitions of stakeholders and then outlines various roles stakeholders might play within grant-funded research. Questions such as "What stakeholders should be involved?" and "How are stakeholders involved?" are addressed. The goal of this commentary is to highlight how the expertise and experiences of CBPR investigators can enhance the field of CER and to describe strategies for encouraging stakeholder involvement in CER research through the lens of CBPR. It is recommended that a team-based approach to conducting stakeholder-engaged CER encourages multiple stakeholders and "end users" to contribute their diverse expertise to the research process and contributes to the development of research with an increased likelihood of improving patient health and healthcare. © 2013 Wiley Periodicals, Inc.

  5. Research on countermeasures to global environment change in the field of urban planning

    Energy Technology Data Exchange (ETDEWEB)

    Kawanaka, Takashi [Building Research Inst., Tsukuba-shi, Ibaraki (Japan)

    1993-12-31

    There are a lot of research themes in the field of urban planning and related fields as mitigation of global environment change. Main theme is reduction method of CO{sub 2} gas emission as a countermeasure against global warming. Some groups research on estimation of CO{sub 2} emission caused by construction activities both in building engineering and civil engineering and also on evaluation of countermeasures. They investigate reduction of CO{sub 2} emission by fossil fuel combustion and by building materials (cement, steel and so on) production process. But we cannot use data fitted to a spatial scale of urban planning. Many researches are focused on nation wide analysis. We, BRI, make a study of {open_quotes}Research on CO{sub 2} Emission in Urban Development and the Control Technologies{close_quotes} as will be seen later at 2. (2). There are two ways of research to reduce CO{sub 2} emission caused by daily activities to urban planning field. One is research on positive utilizing of natural environment in urban areas without depending to energy consuming artificial facilities. There is a research on mitigation of heat island phenomenon for instance. The other ways are research on improvement of energy consumption effect and on reusing of wasted energy In energy consuming type urban space for instance. There s a research on promoting District Heating and Cooling (DHC) and cogeneration.

  6. Research on energy use of field plants; Peltokasvien energiakaeyttoeae koskeva tutkimus

    Energy Technology Data Exchange (ETDEWEB)

    Tauriainen, J. [Commission of Agricultural Research, Helsinki (Finland). Finnish Ministry of Agriculture and Forestry

    1996-12-31

    Production of energy plants on set aside areas of peat production has risen to a subject of discussions during past few years. The field area becoming useless has been estimated to be, before the EU-membership, hundreds of thousands of hectares, 500 000 - 800 000 ha. Alternate usage will be needed for the set aside field areas because the profitability of plant cultivation is diminishing remarkable, and new possibilities for additional income are sought in Finnish farms. Research on field biomasses started in the national Bioenergy Research Programme in 1995. The number of projects was five, funded mainly by the Finnish Ministry of Agriculture and Forestry. The projects carried out in 1995 were: (1) Demonstration of the cultivation of Rape and Reed canary grass at present oil mills to fuel-oil, paper fibers and flash-pyrolysis oil as a large non-food production; (2) Cultivation of energy plants at peat production areas and the applicability of the bioenergy for different purposes; (3) Production of biomass in fields and the utilization of it for energy production; (4) Fractionation of different parts of the field plants and the development of the sorting technologies; and (5) Upgraded fuel from reed canary grass (an international task of the EU/AIR programme). In addition to these, the Agro-fiber research, funded totally by the Ministry of Agriculture and Forestry, will serve the purposes of the energy sector. The research is concentrated on the investigation of the fundamentals of the pulping applications of the field biomasses

  7. Conducting field research in subsistence markets, with an application to market orientation in the context of Ethiopian pastoralists

    NARCIS (Netherlands)

    Ingenbleek, P.T.M.; Tessema, W.K.; Trijp, van J.C.M.

    2013-01-01

    The typical characteristics of subsistence markets challenge not only the generalizability of marketing theories but also the applicability and validity of the field researchmethods generally practiced by marketing researchers. This article discusses challenges inherent to field research in

  8. Enhancing the Equating of Item Difficulty Metrics: Estimation of Reference Distribution. Research Report. ETS RR-14-07

    Science.gov (United States)

    Ali, Usama S.; Walker, Michael E.

    2014-01-01

    Two methods are currently in use at Educational Testing Service (ETS) for equating observed item difficulty statistics. The first method involves the linear equating of item statistics in an observed sample to reference statistics on the same items. The second method, or the item response curve (IRC) method, involves the summation of conditional…

  9. Theoretical and Applied Research in the Field of Higher Geodesy Conducted in Rzeszow

    Directory of Open Access Journals (Sweden)

    Kadaj Roman

    2016-06-01

    Full Text Available Important qualitative changes were taking place in polish geodesy in last few years. It was related to application of new techniques and technologies and to introduction of European reference frames in Poland. New reference stations network ASG-EUPOS, together with Internet services which helps in precise positioning was created. It allows to fast setting up precise hybrid networks. New, accurate satellite networks became the basis of new definitions in the field of reference systems. Simultaneously arise the need of new software, which enables to execute the geodetic works in new technical conditions. Authors had an opportunity to participate in mentioned undertakings, also under the aegis of GUGiK, by creation of methods, algorithms and necessary software tools. In this way the automatic postprocessing module (APPS in POZGEO service, a part of ASG-EUPOS system came into being. It is an entirely polish product which works in Trimble environment. Universal software for transformation between PLETRF89, PL-ETRF2000, PULKOWO’42 reference systems as well as defined coordinate systems was created (TRANSPOL v. 2.06 and published as open product. An essential functional element of the program is the quasi-geoid model PL-geoid-2011, which has been elaborated by adjustment (calibration of the global quasi-geoid model EGM2008 to 570 geodetic points (satellite-leveling points. Those and other studies are briefly described in this paper.

  10. Researches carried out by Japan Atomic Energy Research Institute in the field of environmental protection

    International Nuclear Information System (INIS)

    Kavakami, Yu.

    2000-01-01

    The results of works, accomplished by the Japanese Atomic Energy Research Institute, related to evaluation of the nuclear facilities effect on the environmental medium, are considered. The analytical results of studies on the environmental radioactivity with an account of meteorological aspects, evaluation of the nuclear facilities impact on the environmental medium are presented. Studies on the radionuclide behavior in the environmental medium cover large range of problems: distribution of natural and artificial radionuclides in the surface medium and their migration; evaluation of the human radiation doses on the account of radionuclides; environmental medium protection and risk evaluation. The method for measuring the 90 Sr concentrations with application of ion-exchange tars and a simple method for determining the radon activity with application of liquid scintillators were developed in the process of the study on creation of the environmental medium monitoring. The studies, related to the content and behavior of tritium, Pu, 137 Cs, 247 Am, as well as mercury and other heavy metals in the environmental medium were carried out. The methods for evaluating the NPPs radiation effect on the population with an account of the radioactive substances releases both by normal operation and in the emergency situations, were developed. Attention is also paid to research programs and developed codes [ru

  11. A comprehensive literature review of the e-government research field over a decade

    DEFF Research Database (Denmark)

    Kræmmergaard, Pernille; Schlichter, Bjarne

    framework. The framework was used to gain an understanding of the evolution and present state of the e-Government research field. Our research found that the body of academic papers about e-Government has evolved steadily from 2000 till 2009, but with a slight tendency of slowing down in the last two years...... approach indicate a field which is getting more mature. Different research topics of interest as well as theories used in the theoretical papers are identified. Suggestions for further analyses are set up, e.g. about the specific development in the 3 main outlets.......Abstracts from more than 450 peer-reviewed journal publications from 2000 to 2009 have been analysed according to journal, authors and year of publication, and further categorized into research discipline, research topic, unit of analysis and methods used, applying a structured methodological...

  12. Reference Curves for Field Tests of Musculoskeletal Fitness in U.S. Children and Adolescents: The 2012 NHANES National Youth Fitness Survey.

    Science.gov (United States)

    Laurson, Kelly R; Saint-Maurice, Pedro F; Welk, Gregory J; Eisenmann, Joey C

    2017-08-01

    Laurson, KR, Saint-Maurice, PF, Welk, GJ, and Eisenmann, JC. Reference curves for field tests of musculoskeletal fitness in U.S. children and adolescents: The 2012 NHANES National Youth Fitness Survey. J Strength Cond Res 31(8): 2075-2082, 2017-The purpose of the study was to describe current levels of musculoskeletal fitness (MSF) in U.S. youth by creating nationally representative age-specific and sex-specific growth curves for handgrip strength (including relative and allometrically scaled handgrip), modified pull-ups, and the plank test. Participants in the National Youth Fitness Survey (n = 1,453) were tested on MSF, aerobic capacity (via submaximal treadmill test), and body composition (body mass index [BMI], waist circumference, and skinfolds). Using LMS regression, age-specific and sex-specific smoothed percentile curves of MSF were created and existing percentiles were used to assign age-specific and sex-specific z-scores for aerobic capacity and body composition. Correlation matrices were created to assess the relationships between z-scores on MSF, aerobic capacity, and body composition. At younger ages (3-10 years), boys scored higher than girls for handgrip strength and modified pull-ups, but not for the plank. By ages 13-15, differences between the boys and girls curves were more pronounced, with boys scoring higher on all tests. Correlations between tests of MSF and aerobic capacity were positive and low-to-moderate in strength. Correlations between tests of MSF and body composition were negative, excluding absolute handgrip strength, which was inversely related to other MSF tests and aerobic capacity but positively associated with body composition. The growth curves herein can be used as normative reference values or a starting point for creating health-related criterion reference standards for these tests. Comparisons with prior national surveys of physical fitness indicate that some components of MSF have likely decreased in the United States over

  13. The neurosciences research program at MIT and the beginning of the modern field of neuroscience.

    Science.gov (United States)

    Adelman, George

    2010-01-15

    The interdisciplinary field, "neuroscience," began at MIT in 1962 with the founding of the Neurosciences Research Program (NRP) by Francis O. Schmitt and a group of US and international scientists - physical, biological, medical, and behavioral - interested in understanding the brain basis of behavior and mind. They organized and held specialist meetings of basic topics in neuroscience, and the journal and book publications over the next 20 years, based on these meetings, helped establish the new field.

  14. Development and field application of a nonlinear ultrasonic modulation technique for fatigue crack detection without reference data from an intact condition

    Science.gov (United States)

    Lim, Hyung Jin; Kim, Yongtak; Koo, Gunhee; Yang, Suyoung; Sohn, Hoon; Bae, In-hwan; Jang, Jeong-Hwan

    2016-09-01

    In this study, a fatigue crack detection technique, which detects a fatigue crack without relying on any reference data obtained from the intact condition of a target structure, is developed using nonlinear ultrasonic modulation and applied to a real bridge structure. Using two wafer-type lead zirconate titanate (PZT) transducers, ultrasonic excitations at two distinctive frequencies are applied to a target inspection spot and the corresponding ultrasonic response is measured by another PZT transducer. Then, the nonlinear modulation components produced by a breathing-crack are extracted from the measured ultrasonic response, and a statistical classifier, which can determine if the nonlinear modulation components are statistically significant in comparison with the background noise level, is proposed. The effectiveness of the proposed fatigue crack detection technique is experimentally validated using the data obtained from aluminum plates and aircraft fitting-lug specimens under varying temperature and loading conditions, and through a field testing of Yeongjong Grand Bridge in South Korea. The uniqueness of this study lies in that (1) detection of a micro fatigue crack with less than 1 μm width and fatigue cracks in the range of 10-20 μm in width using nonlinear ultrasonic modulation, (2) automated detection of fatigue crack formation without using reference data obtained from an intact condition, (3) reliable and robust diagnosis under varying temperature and loading conditions, (4) application of a local fatigue crack detection technique to online monitoring of a real bridge.

  15. Mapping the evolution of entrepreneurship as a field of research (1990-2013): A scientometric analysis.

    Science.gov (United States)

    Chandra, Yanto

    2018-01-01

    This article applies scientometric techniques to study the evolution of the field of entrepreneurship between 1990 and 2013. Using a combination of topic mapping, author and journal co-citation analyses, and overlay visualization of new and hot topics in the field, this article makes important contribution to the entrepreneurship research by identifying 46 topics in the 24-year history of entrepreneurship research and demonstrates how they appear, disappear, reappear and stabilize over time. It also identifies five topics that are persistent across the 24-year study period--institutions and institutional entrepreneurship, innovation and technology management, policy and development, entrepreneurial process and opportunity, and new ventures--which I labeled as The Pentagon of Entrepreneurship. Overall, the analyses revealed patterns of convergence and divergence and the diversity of topics, specialization, and interdisciplinary engagement in entrepreneurship research, thus offering the latest insights on the state of the art of the field.

  16. Mapping the evolution of entrepreneurship as a field of research (1990–2013): A scientometric analysis

    Science.gov (United States)

    2018-01-01

    This article applies scientometric techniques to study the evolution of the field of entrepreneurship between 1990 and 2013. Using a combination of topic mapping, author and journal co-citation analyses, and overlay visualization of new and hot topics in the field, this article makes important contribution to the entrepreneurship research by identifying 46 topics in the 24-year history of entrepreneurship research and demonstrates how they appear, disappear, reappear and stabilize over time. It also identifies five topics that are persistent across the 24-year study period––institutions and institutional entrepreneurship, innovation and technology management, policy and development, entrepreneurial process and opportunity, and new ventures––which I labeled as The Pentagon of Entrepreneurship. Overall, the analyses revealed patterns of convergence and divergence and the diversity of topics, specialization, and interdisciplinary engagement in entrepreneurship research, thus offering the latest insights on the state of the art of the field. PMID:29300735

  17. Mapping the evolution of entrepreneurship as a field of research (1990-2013: A scientometric analysis.

    Directory of Open Access Journals (Sweden)

    Yanto Chandra

    Full Text Available This article applies scientometric techniques to study the evolution of the field of entrepreneurship between 1990 and 2013. Using a combination of topic mapping, author and journal co-citation analyses, and overlay visualization of new and hot topics in the field, this article makes important contribution to the entrepreneurship research by identifying 46 topics in the 24-year history of entrepreneurship research and demonstrates how they appear, disappear, reappear and stabilize over time. It also identifies five topics that are persistent across the 24-year study period--institutions and institutional entrepreneurship, innovation and technology management, policy and development, entrepreneurial process and opportunity, and new ventures--which I labeled as The Pentagon of Entrepreneurship. Overall, the analyses revealed patterns of convergence and divergence and the diversity of topics, specialization, and interdisciplinary engagement in entrepreneurship research, thus offering the latest insights on the state of the art of the field.

  18. Mixed Methods Research Prevalence Studies: Field-Specific Studies on the State of the Art of Mixed Methods Research

    OpenAIRE

    Molina-Azorín, José F.; Fetters, Michael D.

    2016-01-01

    The Journal of Mixed Methods Research (JMMR) has always welcomed two main kinds of manuscripts: original empirical articles and methodological/theoretical articles (Creswell & Tashakkori, 2007; Fetters & Freshwater, 2015a; Mertens, 2011). Both types of articles must clearly state methodological aims, review mixed methods literature relative to the methodological aim, and advance the field of mixed methods—empirical articles must address integration (Fetters & Freshwater, 2015b). In this edito...

  19. Programme of basic nuclear research and associated fields 1977-1981

    International Nuclear Information System (INIS)

    1978-01-01

    Nuclear research and development have been intensively pursued in West Germany by the Government and the Laender since 1955. In this period, the aims and official measures for fostering the research and use of nuclear power for peaceful purposes were laid down in four nuclear programmes. The 4th Nuclear Programme covers the period 1973 to 1976. From 1977, nuclear development became part of the energy research programme which was published by the West German Government in the spring of 1977. The basic nuclear research, however, was regarded as part of a total concept for fostering basic research (to be developed). While all the activities of research in the natural sciences and arts fostered by the West German Ministry of Research and Technology were to be co-ordinated in a more schematic form in the plan for 'Basic Research', it is the aim of the present statement to take stock of the present situation in 'Basic Nuclear Research' including the associated fields of 'Nuclear Solid Research' and 'Synchrotron Radiation', to analyse their structure, to describe the scientific aims for the next five years and to determine the total financial requirements. The basis for determining the financial programme worked out by the expert committee on 'Physical Research in the Nuclear Field' and the other committees in this field. The plans are in agreement with the medium term plan of the West German Ministry of Research and Technology (at 27.10.1977) and their contents correspond to the state of affairs at the end of 1977. (orig./UA) [de

  20. Work-Identity in Ethnographic Research: Developing Field Roles in a Demanding Workplace Setting

    Directory of Open Access Journals (Sweden)

    Gunilla Jansson PhD

    2013-02-01

    Full Text Available In this article we problematize our field roles as two linguistic ethnographers who aim to study the communication and documentation practices drawn upon by care workers in elderly care facilities in Sweden. Our field roles are discussed in relation to the complex nature of care workers' knowledge and competence, which results from three different aspects of their work-identities: institutional, professional, and individual. As researchers, we found ourselves in constant dialogue with the research participants, and our field roles were continuously shaped and reshaped according to the individuals and the situations in which we became involved. Even aspects of our own identities taken into the field, such as our background and personal qualities, proved to be important in establishing good relations with the care staff. Coming closer to the participants' professional identity proved to be of utmost importance for interpreting their choices and decisions in the workplace. Identity negotiation is presented here as a constructive way of discussing ethnographic field roles in the research field.

  1. Survey of the technical-scientific research field in the Oslo district

    International Nuclear Information System (INIS)

    1975-12-01

    Organisations and institutes in the Oslo district which carry out research in the technical-scientific field are listed, with adress and telephone number. This includes a number of institutes whose activities are mainly or partly in the nuclear field. The list is subdivided into departments, with brief descriptions of their fields of activity, the scientific personnel with their special interests, and a detailed list of the special projects and activities of the departments. Special apparatus and equipment which the institutes have at their disposal are also mentioned with brief specifications. (JIW)

  2. IAEA-RCA co-ordinated research programme compilation of anatomical, physiological and metabolic characteristics for a reference asian man

    International Nuclear Information System (INIS)

    Kawamura, H.; Tanaka, G.; Miah, F.K.

    1996-01-01

    The world-wide radiation protection concerns that followed the Chernobyl accident created an increased need for basic data to assess internal doses to members of the public in each country. Therefore, the Reference Asian Man Programme was proposed by Japan and initiated as a part of the IAEA Regional Cooperative Agreement Project for Strengthening Radiation Protection Infrastructure to coincide with the revision of Reference Man data by ICRP Committee 2. The first priority was given to compilation of data on physique, and mass of internal organs where possible, for populations throughout the Asian region. Data on daily consumption of foods and nutrients were also emphasized since they are important components of the ingestion pathway for uptake of radionuclides by humans. Pulmonary function and water balance parameters were considered important in relation to the inhalation pathway and water contamination. The programme was also endorsed by ICRP. (author)

  3. Review of Recent Applied Linguistics Research in Finland and Sweden, with Specific Reference to Foreign Language Learning and Teaching

    Science.gov (United States)

    Ringbom, Hakan

    2012-01-01

    This review covers recent applied linguistic research in Finland and Sweden during the years 2006-2011, with particular emphasis on foreign language learning and teaching. Its primary aim is to inform the international research community on the type of research that is going on in these countries. Special attention is given to topics which have…

  4. Mobile application for field data collection and query: Example from wildlife research (Invited)

    Science.gov (United States)

    Bateman, H.; Lindquist, T.; Whitehouse, R.

    2013-12-01

    Field data collection is often used in many scientific disciplines and effective approaches rely on accurate data collection and recording. We designed a smartphone and tablet application (app) for field-collected data and tested it during a study on wildlife. The objective of our study was to determine the effectiveness of mobile applications in wildlife field research. Student software developers designed applications for mobile devices on the iOS and Android operating systems. Both platforms had similar user interactions via data entry on a touch screen using pre-programmed fields, checkboxes, drop-down menus, and keypad entry. The mobile application included features to insure collection of all measurements in the field through pop-up messages and could proof entries for valid formats. We used undergraduate student subjects to compare the duration of data recording and data entry, and the frequency of errors between the mobile application and traditional (paper) techniques. We field-tested the mobile application using an existing study on wildlife. From the field, technicians could query a database stored on a mobile device to view histories of previously captured animals. Overall, we found that because the mobile application allowed us to enter data in a digital format in the field we could eliminate timely steps to process handwritten data sheets and double-checking data entries. We estimated that, for a 2-month project, using the mobile application instead of traditional data entry and proofing reduced our total project time by 10%. To our knowledge, this is the first application developed for mobile devices for wildlife users interesting in viewing animal capture histories from the field and could be developed for use in other areas of field research.

  5. Reflections by a student and a faculty member on student-faculty collaborative geophysical field research

    Science.gov (United States)

    Bank, C.; Rotzien, J.

    2007-12-01

    More and more students and faculty engage in collaborative research. Field geophysics provides a fascinating venue, as it always contributes to interpersonal relations, usually involves off-campus work, and often allows us to meet new people and explore a different culture. Tackling an authentic research problem keeps a faculty member excited about her/his discipline, while allowing a student to engage in the process of science, follow a researcher's thoughts and contribute to a real project. The exchange of ideas and the generation of new knowledge is rewarding to the student as it facilitates her/his academic growth. Despite the obvious advantages of including students in field-based research, few students are allowed such an opportunity because of the institutional commitment in time and money that is necessary for success. Other challenges in field-based geophysical research include steep learning curves related to the use of equipment, unknown outcomes (data that is often difficult to interpret), and a true commitment to the project on the student's part. The faculty member on the other hand faces additional challenges because of the responsibility for students in the field, scheduling constraints, limited funding, and students' diverse academic goals. This presentation will be given by a faculty member and a student who have engaged in various authentic research projects. Projects ranged from afternoon lab exercises on campus (eg, microgravity survey over a tunnel on campus), course projects connected to field trips (eg, magnetic study and subsequent potential field analysis), summer research projects (eg, georadar survey of Deboullie Lake rock glacier), to year-long undergraduate thesis projects (eg, potential field studies at igneous centres of the Navajo Volcanic Field). We will present highlights of these projects, examine their pedagogical merits, and discuss the advantages and rewards we earned as well as the challenges we faced. Despite all challenges

  6. Rehabilitation Research at the National Institutes of Health: Moving the Field Forward (Executive Summary)

    Science.gov (United States)

    Frontera, Walter R.; Bean, Jonathan F.; Damiano, Diane; Ehrlich-Jones, Linda; Fried-Oken, Melanie; Jette, Alan; Jung, Ranu; Lieber, Rick L.; Malec, James F.; Mueller, Michael J.; Ottenbacher, Kenneth J.; Tansey, Keith E.; Thompson, Aiko

    2017-01-01

    Approximately 53 million Americans live with a disability. For decades, the National Institutes of Health (NIH) has been conducting and supporting research to discover new ways to minimize disability and enhance the quality of life of people with disabilities. After the passage of the Americans With Disabilities Act, NIH established the National Center for Medical Rehabilitation Research, with the goal of developing and implementing a rehabilitation research agenda. Currently, 17 institutes and centers at NIH invest more than $500 million per year in rehabilitation research. Recently, the director of NIH, Francis Collins, appointed a Blue Ribbon Panel to evaluate the status of rehabilitation research across institutes and centers. As a follow-up to the work of that panel, NIH recently organized a conference, “Rehabilitation Research at NIH: Moving the Field Forward.” This report is a summary of the discussions and proposals that will help guide rehabilitation research at NIH in the near future. PMID:28422639

  7. Wow, My Science Teacher Does Real Research! Engaging and Motivating Students Using Experiences from the Field

    Science.gov (United States)

    Scott, C.

    2013-12-01

    Students respond to personal connections. When K-12 science teachers are able to participate as field assistants on research projects, their students can benefit greatly from the stories, pictures, and video transmitted or brought back from the field. Teachers can translate and tailor their learning while in the field to the level of their students. Students are ';hooked' into science content by seeing their own teacher out there actually ';doing' science. The teacher is able to provide a direct content connection for the student, an avenue for understanding why ';learning this' is relevant and important. This presentation provides a case for why science teachers and researchers should collaborate as much as possible. The NSF funded PolarTREC program (Teachers and Researchers Exploring and Collaborating) is an excellent example of how to make this collaboration work. The presentation will also provide a look into how teachers can make an effective connection for their students between field science and classroom learning. Alaskan secondary science teacher Carol Scott spent a month at the Kevo Research Station in northern Finland in May/June 2013 as a PolarTREC teacher, and is translating this experience for students. She has also worked on an NSF Research Experience for Teachers grant in Prince William Sound, AK, and has successfully used this work to engage students in the classroom.

  8. a Survey on Topics, Researchers and Cultures in the Field of Digital Heritage

    Science.gov (United States)

    Münster, S.

    2017-08-01

    Digital heritage comprises a broad variety of approaches and topics and involves researchers from multiple disciplines. While the use of digital methods in the text-oriented disciplines dealing with cultural heritage is widely discussed and canonized, an up-to-date investigation on cultural heritage as a scholarly field is currently missing. The extended abstract is about a three-stage investigation on standards, publications, disciplinary cultures as well as scholars in the field of digital heritage, carried out in 2016 and 2017. It includes results of a workshop-based survey involving 44 researchers, 15 qualitative interviews as well as an online survey with nearly 1000 participants. As an overall finding, a community is driven by researchers from European countries and especially Italy with a background in humanities, dealing with topics of data acquisition, data management and visualization. Moreover, conference series are most relevant for a scientific discourse, and especially EU projects set pace as most important research endeavours.

  9. Engaging High School Science Teachers in Field-Based Seismology Research: Opportunities and Challenges

    Science.gov (United States)

    Long, M. D.

    2015-12-01

    Research experiences for secondary school science teachers have been shown to improve their students' test scores, and there is a substantial body of literature about the effectiveness of RET (Research Experience for Teachers) or SWEPT (Scientific Work Experience Programs for Teachers) programs. RET programs enjoy substantial support, and several opportunities for science teachers to engage in research currently exist. However, there are barriers to teacher participation in research projects; for example, laboratory-based projects can be time consuming and require extensive training before a participant can meaningfully engage in scientific inquiry. Field-based projects can be an effective avenue for involving teachers in research; at its best, earth science field work is a fun, highly immersive experience that meaningfully contributes to scientific research projects, and can provide a payoff that is out of proportion to a relatively small time commitment. In particular, broadband seismology deployments provide an excellent opportunity to provide teachers with field-based research experience. Such deployments are labor-intensive and require large teams, with field tasks that vary from digging holes and pouring concrete to constructing and configuring electronics systems and leveling and orienting seismometers. A recently established pilot program, known as FEST (Field Experiences for Science Teachers) is experimenting with providing one week of summer field experience for high school earth science teachers in Connecticut. Here I report on results and challenges from the first year of the program, which is funded by the NSF-CAREER program and is being run in conjunction with a temporary deployment of 15 seismometers in Connecticut, known as SEISConn (Seismic Experiment for Imaging Structure beneath Connecticut). A small group of teachers participated in a week of field work in August 2015 to deploy seismometers in northern CT; this experience followed a visit of the

  10. Research on Duct Flow Field Optimisation of a Robot Vacuum Cleaner

    Directory of Open Access Journals (Sweden)

    Xiao-bo Lai

    2011-11-01

    Full Text Available The duct of a robot vacuum cleaner is the length of the flow channel between the inlet of the rolling brush blower and the outlet of the vacuum blower. To cope with the pressure drop problem of the duct flow field in a robot vacuum cleaner, a method based on Pressure Implicit with Splitting of Operators (PRISO algorithm is introduced and the optimisation design of the duct flow field is implemented. Firstly, the duct structure in a robot vacuum cleaner is taken as a research object, with the computational fluid dynamics (CFD theories adopted; a three-dimensional fluid model of the duct is established by means of the FLUENT solver of the CFD software. Secondly, with the k-∊ turbulence model of three-dimensional incompressible fluid considered and the PRISO pressure modification algorithm employed, the flow field numerical simulations inside the duct of the robot vacuum cleaner are carried out. Then, the velocity vector plots on the arbitrary plane of the duct flow field are obtained. Finally, an investigation of the dynamic characteristics of the duct flow field is done and defects of the original duct flow field are analysed, the optimisation of the original flow field has then been conducted. Experimental results show that the duct flow field after optimisation can effectively reduce pressure drop, the feasibility as well as the correctness of the theoretical modelling and optimisation approaches are validated.

  11. Research on Duct Flow Field Optimisation of a Robot Vacuum Cleaner

    Directory of Open Access Journals (Sweden)

    Xiao-bo Lai

    2011-11-01

    Full Text Available The duct of a robot vacuum cleaner is the length of the flow channel between the inlet of the rolling brush blower and the outlet of the vacuum blower. To cope with the pressure drop problem of the duct flow field in a robot vacuum cleaner, a method based on Pressure Implicit with Splitting of Operators (PRISO algorithm is introduced and the optimisation design of the duct flow field is implemented. Firstly, the duct structure in a robot vacuum cleaner is taken as a research object, with the computational fluid dynamics (CFD theories adopted; a three‐dimensional fluid model of the duct is established by means of the FLUENT solver of the CFD software. Secondly, with the k‐ε turbulence model of three‐ dimensional incompressible fluid considered and the PRISO pressure modification algorithm employed, the flow field numerical simulations inside the duct of the robot vacuum cleaner are carried out. Then, the velocity vector plots on the arbitrary plane of the duct flow field are obtained. Finally, an investigation of the dynamic characteristics of the duct flow field is done and defects of the original duct flow field are analysed, the optimisation of the original flow field has then been conducted. Experimental results show that the duct flow field after optimisation can effectively reduce pressure drop, the feasibility as well as the correctness of the theoretical modelling and optimisation approaches are validated.

  12. The Relationship between Research Method and Visual Display: A Study of Conference Proceedings in the Field of Knowledge Organization

    Science.gov (United States)

    Friedman, Alon

    2014-01-01

    Introduction: "Research method" refers to how to conduct research, how to measure progress, and what constitutes success. Visualisation has become the platform for communicating research findings according to Friedman and Smiraglia. Knowledge organization aims to organize knowledge and many researchers employ visualisation in their…

  13. Determination of the value of the occupational man-Sievert: research on reference values in the asbestos industry

    International Nuclear Information System (INIS)

    Oudiz, A.

    1982-01-01

    In order to assign relative reference values to the cost of the man-Sievert, the implicit costs are calculated for preventing the occupational health risks associated with the asbestos industry in France and the United Kingdom. The results for the cost of the man-Sievert were (0.4 to 1.2) 10 5 F and (3.4 to 9.2) 10 5 F respectively compared to the equivalent workbench cost of 30.10 5 F for PWR reactors in France. (author)

  14. Reports covering research projects in the field of reactor safety supported by the German Federal Ministry for Research and Technology

    International Nuclear Information System (INIS)

    1976-03-01

    Investigations on the safety of Light Water Reactors (LWR) being performed in the framework of the safety program 'Reactor Safety' are sponsored by the Bundesminister fuer Forschung und Technologie (BMFT - Secretary of State for Research and Technology). Objective of this program is to continue improving the safety of LWR, in order to minimize the risk for the environment. With grant assistance from the Bundesminister des Innern. (BMI - Secretary of State for Home Affairs) research cont racts in the field of reactor safety are being performed. Results of these projects should contribute to resolve questions arising nuclear licensing procedures. The Forschungsbetreuung (FB - research supervision department) at the Institute for Reactor Safety (IRS), as consultants to BMFT and BMI, provides information about the progress of investigations. Individual reports will be prepared and put into standard forms by the research contractors. Each report gives information on: 1) the work accomplished, 2) the results obtained, 3) the work planned to be continued. Initial reports of research projects describe in addition the purpose of the work. A BMFT-research program on the safety of Fast Breeders (Schneller Brutreaktor - SBR) is presently under discussion. In order to define several problems, investigations included in the present compilation (RS 139, 140, 143, 162) will be previously performed. (orig.) [de

  15. Analysis of Hurricane Irene’s Wind Field Using the Advanced Research Weather Research and Forecast (WRF-ARW Model

    Directory of Open Access Journals (Sweden)

    Alfred M. Klausmann

    2014-01-01

    Full Text Available Hurricane Irene caused widespread and significant impacts along the U.S. east coast during 27–29 August 2011. During this period, the storm moved across eastern North Carolina and then tracked northward crossing into Long Island and western New England. Impacts included severe flooding from the mid-Atlantic states into eastern New York and western New England, widespread wind damage and power outages across a large portion of southern and central New England, and a major storm surge along portions of the Long Island coast. The objective of this study was to conduct retrospective simulations using the Advanced Research Weather Research and Forecast (WRF-ARW model in an effort to reconstruct the storm’s surface wind field during the period of 27–29 August 2011. The goal was to evaluate how to use the WRF modeling system as a tool for reconstructing the surface wind field from historical storm events to support storm surge studies. The results suggest that, with even modest data assimilation applied to these simulations, the model was able to resolve the detailed structure of the storm, the storm track, and the spatial surface wind field pattern very well. The WRF model shows real potential for being used as a tool to analyze historical storm events to support storm surge studies.

  16. NSF GK-12 Fellows as Mentors for K-12 Teachers Participating in Field Research Experiences

    Science.gov (United States)

    Ellins, K.; Perry, E.

    2005-12-01

    The University of Texas Institute for Geophysics (UTIG) recognizes the value of providing educational opportunities to K-12 teachers who play a critical role in shaping the minds of young people who are the future of our science. To that end, UTIG established the "Texas Teachers in the Field" program in 2000 to formalize the participation of K-12 teachers in field programs that included UTIG scientists. In 2002, "Texas Teachers in the Field" evolved through UTIG's involvement in a University of Texas at Austin GK-12 project led by the Environmental Sciences Institute, which enabled UTIG to partner a subset of GK-12 Fellows with teachers participating in geophysical field programs. During the three years of the GK-12 project, UTIG successfully partnered four GK-12 Fellows with five K-12 teachers. The Fellows served as mentors to the teachers, as liaisons between UTIG scientists leading field programs and teachers and their students, and as resources in science, mathematics, and technology instruction. Specifically, Fellows prepared teachers and their students for the field investigations, supervised the design of individual Teacher Research Experience (TRE) projects, and helped teachers to develop standards-aligned curriculum resources related to the field program for use in their own classrooms, as well as broader distribution. Although all but one TRE occurred during the school year, Texas school districts and principals were willing to release teachers to participate because the experience and destinations were so extraordinary (i.e., a land-based program in Tierra del Fuego, Argentina; and research cruises to the Southeast Caribbean Sea and Hess Deep in the Pacific Ocean) and carried opportunities to work with scientists from around the world. This exceptional collaboration of GK-12 Fellows, K-12 teachers and research scientists enriches K-12 student learning and promotes greater enthusiasm for science. The level of mentoring, preparation and follow-up provided

  17. Maximizing the use of research reactors in training power reactor operating staff with special reference to US experience

    International Nuclear Information System (INIS)

    Cox, J.A.

    1976-01-01

    Research reactors have been used in training nuclear power plant personnel for many years. Using the experience in the United States of America a programme is proposed that will maximize the training conducted at a research reactor and lessen the time that the staff must spend training elsewhere. The programme is adaptable to future training of replacement staff and for staff retraining. (author)

  18. Title list of selected Soviet reports in the fields of nuclear research and nuclear engineering. 9

    International Nuclear Information System (INIS)

    Schumann, G.; Sube, R.

    1979-03-01

    140 titles of reports issued by Soviet institutes (KFTI, EFI, IAE, IFVE, ITEF, NIIAR, NIIEFA, FEI, RI, SFTI) in the fields of nuclear research and nuclear engineering have been arranged according to the INIS subject scope. The reports are available on a loan basis from ZfK Rossendorf, Information Department, Dresden

  19. Title list of selected Soviet reports in the fields of nuclear research and nuclear engineering. 7

    International Nuclear Information System (INIS)

    Schumann, G.; Sube, R.

    1979-03-01

    139 titles of reports issued by Soviet institutes (KFTI, EFI, IAE, IFVE, ITEF, NIIAR, NIIEFA, FEI, RI, SFTI) in the fields of nuclear research and nuclear engineering have been arranged according to the INIS subject scope. The reports are available on a loan basis from ZfK Rossendorf, Information Department, Dresden

  20. Title list of selected Soviet reports in the fields of nuclear research and nuclear engineering. 13

    International Nuclear Information System (INIS)

    Schumann, G.; Sube, R.

    1979-12-01

    136 titles of reports issued by Soviet institutes (KFTI, EFI, IAE, IFVE, ITEF, NIIAR, NIIEFA, FEI, RI, SFTI) in the fields of nuclear research and nuclear engineering have been arranged according to the INIS subject scope. The reports are available on a loan basis from ZfK Rossendorf, Information Department, Dresden

  1. ILEWG EuroMoonMars Research, Technology, and Field Simulation Campaigns

    Science.gov (United States)

    Foing, B. H.; Lillo, A.; Evellin, P.; Kołodziejczyk, A.; Heinicke, C.; Harasymczuk, M.; Authier, L.; Blanc, A.; Chahla, C.; Tomic, A.; Mirino, M.; Schlacht, I.; Hettrich, S.; Pacher, T.; Maller, L.; Decadi, A.; Villa-Massone, J.; Preusterink, J.; Neklesa, A.; Barzilay, A.; Volkova, T.

    2017-10-01

    ILEWG developed since 2008, "EuroMoonMars" pilot research with a Robotic Test Bench (ExoGeoLab) and a Mobile Laboratory Habitat (ExoHab) at ESTEC. Field campaigns were e.g. in ESTEC, EAC, at Utah MDRS, Eifel, and LunAres base at Pila Poland in 2017.

  2. The "Metaphorical Collage" as a Research Tool in the Field of Education

    Science.gov (United States)

    Russo-Zimet, Gila

    2016-01-01

    The aim of this paper is to propose a research tool in the field of education--the "metaphorical collage." This tool facilitates the understanding of concepts and processes in education through the analysis of metaphors in collage works that include pictorial images and verbal images. We believe the "metaphorical collage" to be…

  3. Accountability Issues for Instructional Leadership: Field Research, Site-Based Management, and a Campus Action Plan.

    Science.gov (United States)

    Maurice, John M.; Karr-Kidwell, P. J.

    The purpose of this study was to use data collected from a field research project to enable teachers and instructional leaders to understand and overcome the problems associated with high-stakes testing, especially as they relate to the narrowing of the curriculum. In spring 2001, 27 of the 48 teachers at a middle school in Texas responded to a…

  4. Evolutionary convergence of the patterns of international research collaborations across scientific fields

    NARCIS (Netherlands)

    Wang, L.; Coccia, M.

    2015-01-01

    Frame and Carpenter (1979) analysed the pattern of international research collaboration among scientific fields in 1970s. Starting from this pioneering work, this paper investigates international collaborations over 1997-2012 and compares the critical results with earlier studies to detect the

  5. Computer codes for tasks in the fields of isotope and radiation research

    International Nuclear Information System (INIS)

    Friedrich, K.; Gebhardt, O.

    1978-11-01

    Concise descriptions of computer codes developed for solving problems in the fields of isotope and radiation research at the Zentralinstitut fuer Isotopen- und Strahlenforschung (ZfI) are compiled. In part two the structure of the ZfI program library MABIF is outlined and a complete list of all codes available is given

  6. Using Norm-Based Appeals to Increase Response Rates in Evaluation Research: A Field Experiment

    Science.gov (United States)

    Misra, Shalini; Stokols, Daniel; Marino, Anne Heberger

    2012-01-01

    A field experiment was conducted to test the effectiveness of norm-based persuasive messages for increasing response rates in online survey research. Participants in an interdisciplinary conference were asked to complete two successive postconference surveys and randomly assigned to one of two groups at each time point. The experimental group…

  7. Research in the Field of Inclusive Education: Time for a Rethink?

    Science.gov (United States)

    Messiou, Kyriaki

    2017-01-01

    This paper sets out to challenge thinking and practice amongst researchers in the field of inclusive education. It does this based on an analysis of published articles in the "International Journal of Inclusive Education" between 2005 and 2015, which identified topics and methodologies used in studies of inclusive education. The analysis…

  8. Designing research of fast neutron radiation field based on the reactor

    International Nuclear Information System (INIS)

    Zhang Wenzhong; Zhang Xiaomin

    2009-01-01

    Based on the Tsinghua University experimental nuclear reactor neutron source, this research designed moderate theory technical scheme, and the thickness of materials in the scheme were selected by means of Monte Carlo simulating method. An fast neutron radiation field was gained. (authors)

  9. Title list of selected Soviet reports in the fields of nuclear research and nuclear engineering. 14

    International Nuclear Information System (INIS)

    Schumann, G.; Sube, R.

    1979-12-01

    136 titles of reports issued by Soviet institutes (KFTI, EFI, IAE, IFVE, ITEF, NIIAR, NIIEFA, FEI, RI, SFTI) in the fields of nuclear research and nuclear engineering have been arranged according to the INIS subject scope. The reports are available on a loan basis from ZfK Rossendorf, Information Department, Dresden

  10. Title list of selected Soviet reports in the fields of nuclear research and nuclear engineering. 11

    International Nuclear Information System (INIS)

    Schumann, G.; Sube, R.

    1979-07-01

    158 titles of reports issued by Soviet institutes (KFTI, EFI, IAE, IFVE, ITEF, NIIAR, NIIEFA, FEI, RI, SFTI) in the fields of nuclear research and nuclear engineering have been arranged according to the INIS subject scope. The reports are available on a loan basis from ZfK Rossendorf, Information Department, Dresden

  11. Title list of selected Soviet reports in the fields of nuclear research and nuclear engineering. 6

    International Nuclear Information System (INIS)

    Schumann, G.; Sube, R.

    1979-03-01

    135 titles of reports issued by Soviet institutes (KFTI, EFI, IAE, IFVE, ITEF, NIIAR, NIIEFA, FEI, RI, SFTI) in the fields of nuclear research and nuclear engineering have been arranged according to the INIS subject scope. The reports are available on a loan basis from ZfK Rossendorf, Information Department, Dresden

  12. Title list of selected Soviet reports in the fields of nuclear research and nuclear engineering. 5

    International Nuclear Information System (INIS)

    Schumann, G.; Sube, R.

    1979-03-01

    133 titles of reports issued by Soviet institutes (KFTI, EFI, IAE, IFVE, ITEF, NIIAR, NIIEFA, FEI, RI, SFTI) in the fields of nuclear research and nuclear engineering have been arranged according to the INIS subject scope. The reports are available on a loan basis from ZfK Rossendorf, Information Department, Dresden

  13. Title list of selected Soviet reports in the fields of nuclear research and nuclear engineering. 12

    International Nuclear Information System (INIS)

    Schumann, G.; Sube, R.

    1979-12-01

    136 titles of reports issued by Soviet institutes (KFTI, EFI, IAE, IFVE, ITEF, NIIAR, NIIEFA, FEI, RI, SFTI) in the fields of nuclear research and nuclear engineering have been arranged according to the INIS subject scope. The reports are available on a loan basis from ZfK Rossendorf, Information Department, Dresden

  14. Title list of selected Soviet reports in the fields of nuclear research and nuclear engineering. 8

    International Nuclear Information System (INIS)

    Schumann, G.; Sube, R.

    1979-03-01

    141 titles of reports issued by Soviet institutes (KFTI, EFI, IAE, IFVE, ITEF, NIIAR, NIIEFA, FEI, RI, SFTI) in the fields of nuclear research and nuclear engineering have been arranged according to the INIS subject scope. The reports are available on a loan basis from ZfK Rossendorf, Information Department, Dresden

  15. Title list of selected Soviet reports in the fields of nuclear research and nuclear engineering. 4

    International Nuclear Information System (INIS)

    Schumann, G.; Sube, R.

    1979-03-01

    135 titles of reports issued by Soviet institutes (KFTI, EFI, IAE, IFVE, ITEF, NIIAR, NIIEFA, FEI, RI, SFTI) in the fields of nuclear research and nuclear engineering have been arranged according to the INIS subject scope. The reports are available on a loan basis from ZfK Rossendorf, Information Department, Dresden

  16. Title list of selected Soviet reports in the fields of nuclear research and nuclear engineering. 15

    International Nuclear Information System (INIS)

    Schumann, G.; Sube, R.

    1979-12-01

    137 titles of reports issued by Soviet institutes (KFTI, EFI, IAE, IFVE, ITEF, NIIAR, NIIEFA, FEI, RI, SFTI) in the fields of nuclear research and nuclear engineering have been arranged according to the INIS subject scope. The reports are available on a loan basis from ZfK Rossendorf, Information Department, Dresden

  17. Title list of selected Soviet reports in the fields of nuclear research and nuclear engineering. 10

    International Nuclear Information System (INIS)

    Schumann, G.; Sube, R.

    1979-07-01

    142 titles of reports issued by Soviet institutes (KFTI, EFI, IAE, IFVE, ITEF, NIIAR, NIIEFA, FEI, RI, SFTI) in the fields of nuclear research and nuclear engineering have been arranged according to the INIS subject scope. The reports are available on a loan basis from ZfK Rossendorf, Information Department, Dresden

  18. Surveying the Field: The Research Model of Women in Librarianship, 1882-1898

    Science.gov (United States)

    McDowell, Kate

    2009-01-01

    Women who promoted library services to children in the United States in the late nineteenth century introduced the systematic use of survey research on library practice to the field of professional librarianship. They created a series of qualitative survey-based reports, the "Reading of the Young" reports, which were presented at ALA conferences…

  19. Title list of selected Soviet reports in the fields of nuclear research and nuclear engineering. 0

    International Nuclear Information System (INIS)

    Schumann, G.; Sube, R.

    1977-09-01

    161 titles of reports issued by Soviet institutes (KFTI, EFI, IAE, IFVE, ITEF, NIIAR, NIIEFA, FEI, RI, SFTI) in the fields of nuclear research and nuclear engineering have been arranged according to the INIS subject scope. The reports are availabl on a loan basis from ZfK Rossendorf, Information Department, Dresden

  20. The state of doctoral education in public administration: developments in the field's research preparation

    NARCIS (Netherlands)

    O'Toole, Laurence J.; Brewer, Gene A.; Facer II, Rex L.; Douglas, James W.

    1998-01-01

    This article reports the results of a 1995 survey of the fifty-six NASPAA-affiliated doctoral programs of public administration and public affairs. Following on two related streams of research, we assess the degree of intellectual coherence in the field of public administration, and document what

  1. The Visibility of Information Science and Library Science Research in Bibliometric Mapping of the LIS Field

    Science.gov (United States)

    Astrom, Fredrik

    2010-01-01

    The relation between information science and library science has been debated for decades, and even attempts at utilizing methods generally acknowledged as robust for the purpose of mapping research fields have yielded results with large variations. Therefore, a set of citation analyses was performed, comparing the results of analyses on…

  2. Projectification of Doctoral Training? How Research Fields Respond to a New Funding Regime

    Science.gov (United States)

    Torka, Marc

    2018-01-01

    Funding is an important mechanism for exercising influence over ever more parts of academic systems. In order to do so, funding agencies attempt to export their functional and normative prerequisites for financing to new fields. One essential requirement for fundees is then to construct research processes in the form of a project beforehand, one…

  3. FINESSE Spaceward Bound - Teacher Engagement in NASA Science and Exploration Field Research

    Science.gov (United States)

    Jones, A. J. P.; Heldmann, J. L.; Sheely, T.; Karlin, J.; Johnson, S.; Rosemore, A.; Hughes, S.; Nawotniak, S. Kobs; Lim, D. S. S.; Garry, W. B.

    2016-01-01

    The FINESSE (Field Investigations to Enable Solar System Science and Exploration) team of NASA's Solar System Exploration Research Virtual Institute (SSERVI) is focused on a science and exploration field-based research program aimed at generating strategic knowledge in preparation for the human and robotic exploration of the Moon, Near Earth Asteroids, and the moons of Mars. The FINESSE science program is infused with leading edge exploration concepts since "science enables exploration and exploration enables science." The FINESSE education and public outreach program leverages the team's field investigations and educational partnerships to share the excitement of lunar, Near Earth Asteroid, and martian moon science and exploration locally, nationally, and internationally. The FINESSE education plan is in line with all of NASA's Science Mission Directorate science education objectives, particularly to enable STEM (science, technology, engineering, and mathematics) education and leverage efforts through partnerships.

  4. Growth references

    NARCIS (Netherlands)

    Buuren, S. van

    2007-01-01

    A growth reference describes the variation of an anthropometric measurement within a group of individuals. A reference is a tool for grouping and analyzing data and provides a common basis for comparing populations.1 A well known type of reference is the age-conditional growth diagram. The

  5. Music, dance and memory: Towards deliberation of field research of dance

    Directory of Open Access Journals (Sweden)

    Rakočević Selena

    2015-01-01

    Full Text Available Although ethnochoreology and ethnomusicology as related academic disciplines have decades-long histories, reviewing and redefining their basic epistemological and methodological principles remained one of the main focuses of disciplinary discussion. Most ethnochoreologists and ethnomusicologist agrees that “field” work (in all its traditional and contemporary forms remains an essential and constitutive quality of their research and disciplinary fields. The inherent interdisciplinary networking of ethnochoreology and ethnomusicology starts from the theoretical premise that the relationship between the kinetic and musical components of dance is not only unbreakable, but also interactive, and that complex and dynamic manifestations of dance performances represents an expressive medium through which a particular community constructs and represents itself. Since the importance of the individual experience of researchers has been ephasized during the last few decades, a comprehensive method of participant observation remains a central and unifying aspect of fieldwork, both in ethnochoreology and ethnomusicology. Based on field research of musical and dance practices of the village of Svinica (Sviniţa in Romania, this paper reviews the application and combination of various methods of field research (observation, participation in the performance process, filming, interviews and writing field notes as the primary tools for the acquisition and shaping of scientific knowledge about dance and music. Issues that will be discussed include the following questions: What are the advantages of personal kinetic/auditory experience during simultaneous perception of dance movement and dance music? How can different methods of field research be combined in order to improve cognitive processes? Are there border areas between ethnochoreological and ethnomusicological fieldwork? Does the variety of methods of field research represents a weakness of the

  6. Origin of variation of shift field via annealing at 400°C in a perpendicular-anisotropy magnetic tunnel junction with [Co/Pt]-multilayers based synthetic ferrimagnetic reference layer

    Directory of Open Access Journals (Sweden)

    H. Honjo

    2017-05-01

    Full Text Available We investigated properties of perpendicular-anisotropy magnetic tunnel junctions (p-MTJs with [Co/Pt]-multilayer based synthetic ferrimagnetic reference (SyF layer at elevated annealing temperature Ta from 350°C to 400°C. Shift field HS defined as center field of minor resistance versus magnetic field curve of the MTJs increased with increase of Ta from 350°C to 400°C. The variation of HS is attributed to the variation of saturation magnetic moment in the SyF reference layer. Cross sectional energy dispersive X-ray spectroscopy analysis revealed that Fe element of CoFeB in the reference layer diffuses to Co/Pt multilayers in the SyF reference layer.

  7. A framework to explore the knowledge structure of multidisciplinary research fields.

    Science.gov (United States)

    Uddin, Shahadat; Khan, Arif; Baur, Louise A

    2015-01-01

    Understanding emerging areas of a multidisciplinary research field is crucial for researchers, policymakers and other stakeholders. For them a knowledge structure based on longitudinal bibliographic data can be an effective instrument. But with the vast amount of available online information it is often hard to understand the knowledge structure for data. In this paper, we present a novel approach for retrieving online bibliographic data and propose a framework for exploring knowledge structure. We also present several longitudinal analyses to interpret and visualize the last 20 years of published obesity research data.

  8. A new velocity field for Africa from combined GPS and DORIS space geodetic Solutions: Contribution to the definition of the African reference frame (AFREF)

    Science.gov (United States)

    Saria, E.; Calais, E.; Altamimi, Z.; Willis, P.; Farah, H.

    2013-04-01

    We analyzed 16 years of GPS and 17 years of Doppler orbitography and radiopositioning integrated by satellite (DORIS) data at continuously operating geodetic sites in Africa and surroundings to describe the present-day kinematics of the Nubian and Somalian plates and constrain relative motions across the East African Rift. The resulting velocity field describes horizontal and vertical motion at 133 GPS sites and 9 DORIS sites. Horizontal velocities at sites located on stable Nubia fit a single plate model with a weighted root mean square residual of 0.6 mm/yr (maximum residual 1 mm/yr), an upper bound for plate-wide motions and for regional-scale deformation in the seismically active southern Africa and Cameroon volcanic line. We confirm significant southward motion ( ˜ 1.5 mm/yr) in Morocco with respect to Nubia, consistent with earlier findings. We propose an updated angular velocity for the divergence between Nubia and Somalia, which provides the kinematic boundary conditions to rifting in East Africa. We update a plate motion model for the East African Rift and revise the counterclockwise rotation of the Victoria plate and clockwise rotation of the Rovuma plate with respect to Nubia. Vertical velocities range from - 2 to +2 mm/yr, close to their uncertainties, with no clear geographic pattern. This study provides the first continent-wide position/velocity solution for Africa, expressed in International Terrestrial Reference Frame (ITRF2008), a contribution to the upcoming African Reference Frame (AFREF). Except for a few regions, the African continent remains largely under-sampled by continuous space geodetic data. Efforts are needed to augment the geodetic infrastructure and openly share existing data sets so that the objectives of AFREF can be fully reached.

  9. FP-4 and FP-5 Euratom research activities in the field of plant life management

    International Nuclear Information System (INIS)

    Lemaitre, P.; Goethem, G. van

    2001-01-01

    In this paper an overview is given of the European Union (EU) Euratom research conducted through shared cost and concerted actions in the field of plant life management. After a general introduction on the organisation of the research framework programmes the achievements of the 4th framework programme (FP-4/1994-1998) and the activities under the 5th framework programme (FP-5/1999-2002) in the field of plant life management are presented and discussed in detail. Besides technological safety requirements, socio-economic aspects are becoming increasingly important due to the level of public and political acceptance and to the economic pressure of deregulated electricity markets. It is shown that research conducted in the Euratom framework may contribute to meet these requirements, thereby maintaining nuclear power as a competitive and sustainable option for the energy policy of the European Union. (author)

  10. System and Field Devices (non Nuclear) in Agriculture Research in Malaysian Nuclear Agency

    International Nuclear Information System (INIS)

    Shyful Azizi Abdul Rahman; Abdul Rahim Harun

    2015-01-01

    Research to improve productivity on an ongoing basis in the agricultural sector is essential to ensure and guarantee the country's food security. Malaysian Nuclear Agency, agricultural research had begun in 1981 in which the focus of research is related to mutation breeding, irradiation and the use of isotopes in the study of plant nutrition. Although projects agricultural research carried out based on nuclear technology, other information relating to agricultural research such as agronomy, plant physiology, meteorology and ecology, soil characteristics and water is essential to obtain the understanding and research results that are relevant and significant. Data acquisition for other aspects also need a system and a modern and efficient equipment, in accordance with current technological developments. This paper describes the use, function and capabilities of the existing field equipment available in Agrotechnology and Biosciences Division, Malaysian Nuclear Agency in acquiring data related to weather, measurement and control of ground water, soil nutrients assessment and monitoring of plant physiology. The latest technological developments in sensor technology, computer technology and communication is very helpful in getting data more easily, quickly and accurately. Equipment and the data obtained is also likely to be used by researchers in other fields in Nuclear Malaysia. (author)

  11. A Toolbox for Quantitative Gene Expression in Varroa destructor: RNA Degradation in Field Samples and Systematic Analysis of Reference Gene Stability.

    Directory of Open Access Journals (Sweden)

    Ewan M Campbell

    Full Text Available Varroa destructor is the major pest of Apis mellifera and contributes to the global honey bee health crisis threatening food security. Developing new control strategies to combat Varroa will require the application of molecular biology, including gene expression studies by quantitative real-time reverse transcription-polymerase chain reaction (qRT-PCR. Both high quality RNA samples and suitable stable internal reference genes are required for accurate gene expression studies. In this study, ten candidate genes (succinate dehydrogenase (SDHA, NADH dehydrogenase (NADH, large ribsosmal subunit, TATA-binding protein, glyceraldehyde-3-phosphate dehydrogenase, 18S rRNA (18S, heat-shock protein 90 (HSP90, cyclophilin, α-tubulin, actin, were evaluated for their suitability as normalization genes using the geNorm, Normfinder, BestKeeper, and comparative ΔCq algorithims. Our study proposes the use of no more than two of the four most stable reference genes (NADH, 18S, SDHA and HSP90 in Varroa gene expression studies. These four genes remain stable in phoretic and reproductive stage Varroa and are unaffected by Deformed wing virus load. When used for determining changes in vitellogenin gene expression, the signal-to-noise ratio (SNR for the relatively unstable genes actin and α-tubulin was much lower than for the stable gene combinations (NADH + HSP90 +18S; NADH + HSP90; or NADH. Using both electropherograms and RT-qPCR for short and long amplicons as quality controls, we demonstrate that high quality RNA can be recovered from Varroa up to 10 days later stored at ambient temperature if collected into RNAlater and provided the body is pierced. This protocol allows the exchange of Varroa samples between international collaborators and field sample collectors without requiring frozen collection or shipping. Our results make important contributions to gene expression studies in Varroa by proposing a validated sampling protocol to obtain high quality Varroa

  12. Summary report of the 3. research co-ordination meeting on development of reference input parameter library for nuclear model calculations of nuclear data (Phase 1: Starter File)

    International Nuclear Information System (INIS)

    Oblozinsky, P.

    1997-09-01

    The report contains the summary of the third and the last Research Co-ordination Meeting on ''Development of Reference Input Parameter Library for Nuclear Model Calculations of Nuclear Data (Phase I: Starter File)'', held at the ICTP, Trieste, Italy, from 26 to 29 May 1997. Details are given on the status of the Handbook and the Starter File - two major results of the project. (author)

  13. Food functionality research as a new national project in special reference to improvement of cognitive and locomotive abilities.

    Science.gov (United States)

    Abe, Keiko; Misaka, Takumi

    2018-04-01

    In Japan, where a super-aging society is realized, we are most concerned about healthy longevity, which would ascertain the wellness of people by improving their quality of life (QOL). In 2014, the Cabinet Office proposed a strategic innovation promotion programme, launching a national project for the development of the agricultural-forestry-fisheries food products with new functionalities for the next generation. In addition to focusing on a conventional prevention of lifestyle-associated metabolic syndromes, the project targets the scientific evidence of the activation of brain cognitive ability and the improvement of bodily locomotive function. The project also involves the analysis of the foods-sports interrelation of chronic importance, and the development of devices for the verification of QOL-associated maintenance of homeostasis. In this review, we provide an overview of these studies, with special reference to cognition as a case of the gut-brain axis which the author is particularly interested in.

  14. Reference simulations of noncanonical nucleic acids with different chí variants of the AMBER force field: Quadruplex DNA, quadruplex RNA, and Z-DNA

    Czech Academy of Sciences Publication Activity Database

    Krepl, Miroslav; Zgarbová, M.; Stadlbauer, Petr; Otyepka, M.; Banáš, P.; Koča, J.; Cheatham III, T.E.; Jurečka, P.; Šponer, Jiří

    2012-01-01

    Roč. 8, č. 7 (2012), s. 2506-2520 ISSN 1549-9618 R&D Projects: GA ČR(CZ) GD203/09/H046; GA ČR(CZ) GA203/09/1476; GA ČR(CZ) GAP208/11/1822; GA ČR(CZ) GBP305/12/G034 Institutional research plan: CEZ:AV0Z50040702 Keywords : refinement of empirical force fields * DNA * Z-DNA backbone Subject RIV: BO - Biophysics Impact factor: 5.389, year: 2012

  15. Experimental research on specific activity of 24Na using Chinese reference man phantom irradiated by 252Cf neutrons source

    International Nuclear Information System (INIS)

    Wang Yuexing; Yang Yifang; Lu Yongjie; Zhang Jianguo; Xing Hongchuan

    2011-01-01

    Objective: To investigate the specific activity of '2 4 Na per unit neutron fluence, A B/Φ ,in blood produced for Chinese reference man irradiated by 252 Cf neutron source,and to analyze the effects of scattering neutrons from ground,wall,and ceiling in irradiation site on it.Methods: A 252 Cf neutron source of 3×10 8 n/s and the anthropomorphic phantom were used for experiments. The phantom was made from 4 mm thick of outer covering by perspex and the liquid tissue-equivalent substitute in it. The data of phantom dimensions fit into Chinese reference man.The weight ratios of H, N, O and C in substitute equal from source to long axis of phantom were 1.1, 2.1, 3.1 and 4.1 m, respectively. Both the neutron source and the position of xiphisternum of the phantom were 1.6 m above the floor. Results: The average specific activity of 24 Na per unit neutron fluence was related to the irradiation-distances, d, and its maximum value, A B/ΦM , deduced by experimental data was about 1.85×10 -7 Bq·cm 2 ·g -1 . Conclusions: The A B/ΦM corresponds to that of phantom irradiated by plane-parallel beams, and the value is about more 3% than that by BOMAB phantom reported in literature. It has shown that floor-(wall-)scattered neutrons in irradiation site have significant contribution to the specific activity of 24 Na, but they contributed relatively little to the induced neutron doses. Consequently,using the specific activity of 24 Na for assessing accidental neutron doses received by an individual, the contribution of scattered neutrons in accident site will lead dose to be overestimated, and need to be correct. (authors)

  16. Electric and magnetic field reduction and research: A report to the Washington State Legislature

    International Nuclear Information System (INIS)

    Geissinger, L.G.; Waller, P.; Chartier, V.L.; Olsen, R.G.

    1993-01-01

    Increasingly, citizens of Washington State are expressing their concerns about possible adverse health effects of electric and magnetic fields (EMF) from electric utility power systems. A number of legislative proposals over the past several years have prompted governmental officials to evaluate available options for reducing electric and magnetic field strengths surrounding these systems (with a concentration on magnetic fields) or otherwise manage public exposure to power lines by increasing land use controls and setbacks for new development. Unsuccessful proposals brought before the Washington Legislature include 2 mG magnetic field limits for new transmission lines at the right-of-way edge; a temporary moratorium on transmission construction; requirements for providing public information on EMF; and expansion of the role of state governmental agencies in transmission siting and design. A successful Whatcom County initiative limits the voltage of new transmission to 115 kV in all but industrial land use zones, an action likely to have an unintended outcome of increasing magnetic fields in some areas. It is clear that better communication is needed about possible options for EMF management, costs and consequences, despite the fact scientific evidence on the existence of human health effects is inconclusive. This paper describes the work that Washington State undertook in 1990-92 in response to Engrossed Substitute Senate Bill 6771 establishing the Electric Transmission Research Needs Task Force. The Task Force was directed to report to the Legislature on possible exposure reduction methods; recommending engineering research that could lead to more effective approaches in the future

  17. A National Collaborative for Building the Field of Childhood Obesity Research.

    Science.gov (United States)

    2018-03-01

    Rising rates of childhood obesity over the past 2 decades have spurred a number of public- and private-sector initiatives aimed at halting or even reversing this trend. Recognizing common interests in this issue, the Centers for Disease Control and Prevention, NIH, and the Robert Wood Johnson Foundation began conversations about creating a formal collaboration aimed at accelerating efforts to address childhood obesity by coordinating research agendas and providing support for evidence-building activities. The National Collaborative on Childhood Obesity Research (NCCOR) was launched in February 2009, and the U.S. Department of Agriculture joined in 2010. Using the model provided by other previously successful collaborations, such as the Youth Tobacco Cessation Collaborative, NCCOR has emphasized several principles suggested by Petrovich as key elements for successful partnerships: (1) delineate a common purpose by identifying key knowledge gaps in the field; (2) create a shared identity around that common purpose; (3) develop structures for democratic and respectful collaboration so as to strategically coordinate efforts for maximum national impact; (4) identify effective leaders capable of articulating challenges in the field and inspiring a commitment of minds and the resolve to address identified needs; (5) facilitate continuous knowledge exchange and synthesis to keep the field informed; and (6) support assessment of progress and feedback loops for ensuring continual progress. This paper examines how NCCOR has used these principles to help build the field of research, evaluation, and surveillance for childhood obesity prevention and management. Published by Elsevier Inc.

  18. International Field Research with Undergraduate Students: Investigating Active Tectonics of the Nicoya Peninsula, Costa Rica

    Science.gov (United States)

    Marshall, J. S.; Gardner, T. W.; Protti, M.

    2005-12-01

    Over the past eight years, 18 undergraduate students from 12 U.S. and Costa Rican universities and colleges have participated in field research projects investigating coastal tectonics on the Nicoya Peninsula, Costa Rica. These projects have been organized around two different models: 1) a month-long "field camp" with 10 students and 5 project faculty (Keck Geology Consortium Project, 1998), and 2) several two-week field projects with 1-3 students and one faculty advisor (Cal Poly Pomona University and Trinity University). Under the direction of the authors, each of these projects has been carefully designed to provide a new piece to a larger research puzzle. The Nicoya Peninsula lies along Costa Rica's northern Pacific coast inboard of the Middle America Trench where the Cocos and Caribbean plates converge at 10 cm/yr. In 1950, the peninsula was shaken by a ~M 7.7 subduction earthquake that produced widespread damage and 0.5-1.0 m of coseismic coastal uplift. With a large slip deficit since 1950, the Nicoya Peninsula is viewed as a high-potential seismic gap. Field study of uplifted Quaternary marine terraces along the Nicoya coastline provides undergraduate students with a unique opportunity to examine rapid forearc deformation related to large subduction earthquakes. The field research conducted by each of these students provides the basis for a senior thesis at their home institution. In most cases, the students have focused their individual work on separate, but adjacent field areas. Collectively, each of these projects has generated significant data that contribute toward of an ongoing investigation of fore arc tectonics and subduction cycle earthquakes along the Costa Rican Pacific margin.

  19. Summary report of the first research coordination meeting on development of a reference database for particle-induced gamma ray emission (PIGE) spectroscopy

    International Nuclear Information System (INIS)

    Abriola, D.; Pedro de Jesus, A.

    2011-07-01

    The First Research Coordination Meeting (RCM) of the IAEA Coordinated Research Project (CRP) on 'Development of a Reference Database for Particle-Induced Gamma-ray Emission (PIGE) Spectroscopy' was held at the IAEA, Vienna, from 16-20 May 2011. A summary of the participants' presentations is given as well as background information, objectives and recommendations concerning approach and methodology. The extension of the IBANDL database format to include PIGE data was discussed. The different tasks to achieve the CRP objectives were assigned to participants. A list of priority measurements was produced and the individual sets of measurements assigned to participants. (author)

  20. Summary Report of the 3rd Research Coordination Meeting on Development of a Reference Database for Particle-Induced Gamma ray Emission (PIGE) Spectroscopy

    International Nuclear Information System (INIS)

    Dimitriou, P.; Pedro de Jesus, A.

    2014-05-01

    The Third Research Coordination Meeting (RCM) of the IAEA Coordinated Research Project (CRP) on “Development of a Reference Database for Particle-Induced Gamma-ray Emission (PIGE) Spectroscopy” was held at the IAEA, Vienna, from 7 to 11 April 2014. Participants reviewed the progress made since the previous RCM and agreed upon the work that remains to be done by the end of the CRP. The contents of the final Technical Document were discussed and individual chapters were assigned. The summaries of participants’ presentations as well as the technical discussions and the list of assigned tasks are included in this report. (author)

  1. Parameters for calculation of nuclear reactions of relevance to non-energy nuclear applications (Reference Input Parameter Library: Phase III). Summary report of the first research coordination meeting

    International Nuclear Information System (INIS)

    Capote Noy, R.

    2004-08-01

    A summary is given of the First Research Coordination Meeting on Parameters for Calculation of Nuclear Reactions of Relevance to Non-Energy Nuclear Applications (Reference Input Parameter Library: Phase III), including a critical review of the RIPL-2 file. The new library should serve as input for theoretical calculations of nuclear reaction data at incident energies up to 200 MeV, as needed for energy and non-energy modern applications of nuclear data. Technical discussions and the resulting work plan of the Coordinated Research Programme are summarized, along with actions and deadlines. Participants' contributions to the RCM are also attached. (author)

  2. Framework for systems engineering research

    CSIR Research Space (South Africa)

    Erasmus, L

    2013-08-01

    Full Text Available In this paper a framework is proposed to perform systems engineering research within South Africa. It is proposed that within the reference of the National Research Foundation (NRF) classification of research, systems engineering is a Field...

  3. Possible classification of the methods of operational research applicable in the field of defense

    Directory of Open Access Journals (Sweden)

    Mučibabić Spasoje

    2006-01-01

    Full Text Available The overall dynamic development of operational research in various fields of human activities urges the need for a clearer and mathematically more explicit classification of its methods. This need is also very urgent in the field of defense, particularly because of the complications of modern conflicts, as well as of new security requirements. One of the possible classifications of methods based on the theory of games as a mathematical model for solving conflict situations is presented in this paper. The connections between methods and their mathematical description are underlined.

  4. Research in the field of development of a new generation of metal-processing machines

    Directory of Open Access Journals (Sweden)

    L.Tanovič

    2017-12-01

    Full Text Available The paper presents a review of research in the field of development of a new generation of metal-working machines for manufacturing high-precision products with dimensions of several micrometers from various materials. Presented are several new, newly created micro-machines that have the ability to manufacture products of a wide range. Studies in the field of metalworking machines and robots of a new generation with parallel kinematics, creation of machining systems for multi-axis machining, improvement and application of controllable systems, testing of processing systems in production conditions, which are conducted at the Machine-Building Faculty of the Belgrade University (Serbia are considered.

  5. Analyses of Research Topics in the Field of Informetrics Based on the Method of Topic Modeling

    OpenAIRE

    Sung-Chien Lin

    2014-01-01

    In this study, we used the approach of topic modeling to uncover the possible structure of research topics in the field of Informetrics, to explore the distribution of the topics over years, and to compare the core journals. In order to infer the structure of the topics in the field, the data of the papers published in the Journal of Informetricsand Scientometrics during 2007 to 2013 are retrieved from the database of the Web of Science as input of the approach of topic modeling. The results ...

  6. Establishment of dosimetric references for high energy X-ray beams of very small field sizes (≤ 1 cm2) used in radiotherapy

    International Nuclear Information System (INIS)

    Dufreneix, Stephane

    2014-01-01

    The French primary standard dosimetry laboratory 'Laboratoire National Henri Becquerel' is in charge of the establishment of dosimetric standards for ionizing radiation beams. Absolute dose measurements are thus available for X-Ray beams used in radiotherapy for field sizes between 10 and 2 cm. Since the miniaturization of absolute dosimeters is not possible for smaller field sizes, a dose area product (DAP) has been suggested as a substitute to the absorbed dose at a point.In order to measure a DAP with dosimeters which sensitive surface is larger than the beam, a graphite calorimeter with a sensitive surface of 3 cm diameter was designed, built and tested. An ionization chamber with the same diameter was realized and tested to transfer the dosimetric references to the end users. Its calibration factor in terms of DAP was determined in circular beams of 2, 1 and 0.75 cm diameter with an uncertainty smaller than 0.7 %. The two-Dimension relative dose distribution was measured thanks to a diamond dosimeter, a PinPoint ionization chamber and gafchromic films, using a specific protocol. Both approaches, respectively based on a PDS and an absorbed dose to water at a point, were in good agreement in the 2 cm beam. Correction factors determined from Monte Carlo simulations and measured dose distributions were needed for this comparison. The calibration factor of the large ionization chamber in the 1 and 0.75 cm diameter beams were in good agreement within the uncertainties but a gap of -2.6 % was found with the one established in the 2 cm diameter beam. As a result, the DAP can be used if the sensitive surface is much larger than the beam section. (author) [fr

  7. Isotopic exchange on solid-phase micro extraction fiber in sediment under stagnant conditions: Implications for field application of performance reference compound calibration.

    Science.gov (United States)

    Bao, Lian-Jun; Wu, Xiaoqin; Jia, Fang; Zeng, Eddy Y; Gan, Jay

    2016-08-01

    An overlooked issue for field application of in situ performance reference compound (PRC) calibration methods is the validity of the assumption that both the sorption of a target compound and desorption of its corresponding PRC follow the first-order kinetics with the same rate constants under stagnant conditions. In the present study, disposable polydimethylsiloxane fibers of 2 sizes (7 and 35 µm) impregnated with 8 (13) C-labeled or deuterated PRCs were statically deployed into different marine sediments, from which the kinetics for sorption of the target compounds and desorption of the PRCs were characterized. Nonsymmetrical profiles were observed for exchange of the target analytes and their corresponding PRCs in sediment under stagnant conditions. The hysteretic desorption of PRCs in the kinetic regime may be ascribed to the low chemical potential between the fiber and sediment porewater, which reflects the inability of water molecules to rapidly diffuse through sediment to solvate the PRCs in the aqueous layer around the fiber surface. A moderate correlation (r = 0.77 and r = 0.57, p < 0.05 for both regressions) between the PRC-calibrated equilibrium concentrations of 1,1-dichloro-2,2-bis-(chlorophenyl) ethylene (p,p'-DDE) and polychlorinated biphenyl (PCB)-153 and the lipid normalized levels in worms (Neanthes arenaceodentata) was obtained in co-exposure tests under simulating field conditions, probably resulting from slightly overestimated bioavailability because of the hysteretic desorption of PRCs and toxic effects. Environ Toxicol Chem 2016;35:1978-1985. © 2015 SETAC. © 2015 SETAC.

  8. Field research internships: Why they impact students' decisions to major in the geosciences

    Science.gov (United States)

    Kortz, K. M.; Cardace, D.; Savage, B.; Rieger, D.

    2017-12-01

    Although internships have been shown to retain geoscience students, little research has been done on what components of research or field experiences during an internship impact students' decisions to major in the geosciences. We created and led a short, two-week field-based internship for 5 introductory-level students to conduct research and create a poster to present their results. In addition to the two professors leading the internship and the 5 interns, there were 2 masters students and 1 community college student who were returning to the field area to collect data for their own projects. These students also helped to guide and mentor the interns. The interns were diverse in many aspects: 3 were female, 2 were non-white, 3 were community college students (1 4YC student was a transfer), 2 were first-generation college students, and their ages ranged from 18 to 33. Based on our evaluation, we found that the research experience increased students' self-efficacy in the geosciences through various means, increased their connection with mentors and other individuals who could serve as resources, gave them a sense of belonging to the geoscience culture, increased their knowledge of geoscience career paths and expectations, helped them make connections with Earth, and maintained their interest. These factors have been described in the literature as leading to retention, and we propose that field-based internships are successful for recruitment or retention in the geosciences because they influence so many of these affective and cognitive components at once. In particular, the social aspect of internships plays a fundamental role in their success because many of these factors require close and sustained interactions with other people. An implication of this research is that these affective components, including social ones, should be explicitly considered in the design and implementation of internships to best serve as a recruitment and retention strategy.

  9. Space flight research relevant to health, physical education, and recreation: With particular reference to Skylab's life science experiments

    Science.gov (United States)

    Vanhuss, W. D.; Heusner, W. W.

    1979-01-01

    Data collected in the Skylab program relating to physiological stresses is presented. Included are routine blood measures used in clinical medicine as research type endocrine analyses to investigate the metabolic/endocrine responses to weightlessness. The daily routine of physical exercise, coupled with appropriate dietary intake, sleep, work, and recreation periods were considered essential in maintaining the crew's health and well being.

  10. Testing a newly developed single-sphere neutron spectrometer in reference monochromatic fields from 147 keV to 14.8 MeV

    Energy Technology Data Exchange (ETDEWEB)

    Bedogni, R., E-mail: roberto.bedogni@lnf.infn.it [INFN—LNF Laboratori Nazionali di Frascati, Via E. Fermi n. 40, 00044 Frascati (Italy); Gómez-Ros, J.M. [INFN—LNF Laboratori Nazionali di Frascati, Via E. Fermi n. 40, 00044 Frascati (Italy); CIEMAT, Av. Complutense 40, 28040 Madrid (Spain); Pola, A.; Introini, M.V. [Politecnico di Milano - Dipartimento di Energia, Via Ponzio 34/3, 20133 Milano (Italy); Bortot, D. [INFN—LNF Laboratori Nazionali di Frascati, Via E. Fermi n. 40, 00044 Frascati (Italy); Politecnico di Milano - Dipartimento di Energia, Via Ponzio 34/3, 20133 Milano (Italy); Gentile, A.; Esposito, A.; Mazzitelli, G.; Buonomo, B.; Quintieri, L.; Foggetta, L. [INFN—LNF Laboratori Nazionali di Frascati, Via E. Fermi n. 40, 00044 Frascati (Italy)

    2013-06-21

    A new neutron spectrometer, designed to simultaneously respond from the thermal domain up to hundreds of MeV neutrons, was designed and built in the framework of the INFN project NESCOFI@BTF. It has been called SP{sup 2} (SPherical SPectrometer) and it consists of 31 thermal neutron detectors embedded in a 25 cm diameter polyethylene sphere with an internal 1 cm thick lead shell. The new spectrometer shows similar performance as the Bonner sphere spectrometer, but has the notable advantage of requiring only one exposure to determine the whole spectrum. The SP{sup 2} response matrix, previously calculated with MCNP, has been experimentally evaluated with monochromatic reference neutron fields from 147 keV to 14.8 MeV at PTB Braunschweig. As suitable thermal neutron detectors, Dysprosium activation foils were adopted at this stage. The results of the experiment confirmed the correctness of the response matrix within an overall uncertainty of ±3%. The next phase of the NESCOFI@BTF project will be the replacement of passive detectors with active counters, thus leading to a real-time spectrometric monitor that is expected to significantly innovate the neutron control task in neutron-producing facilities, such as the beam-lines for industrial irradiation or condensed matter studies.

  11. Nickel quantification in serum by a validated sector-field inductively coupled plasma mass spectrometry method: Assessment of tentative reference values for an Italian population.

    Science.gov (United States)

    Bocca, Beatrice; Forte, Giovanni; Ronchi, Anna; Gaggeri, Raffaella; Alimonti, Alessandro; Minoia, Claudio

    2006-01-01

    The daily exposure to Ni from food, industrial processes, jewellery and coins makes the determination of Ni in human serum an important way to monitor the health status in non-occupationally exposed subjects. To this end, a method based on sector-field inductively coupled plasma mass spectrometry was developed and validated. The limits of detection (LoD) and quantification (LoQ), sensitivity, linearity range, trueness, repeatability, within-laboratory reproducibility and robustness were the considered issues of the validation process. The uncertainty associated with the measurements was also calculated, according to the Eurachem/Citac Guide. The method LoD and LoQ were 0.03 and 0.09 ng mL(-1), linearity was over two order of magnitude, trueness was -3.57%, and the repeatability and reproducibility showed relative standard deviations equal to 4.56% and 6.52%, respectively. The relative expanded uncertainty was 21.8% at the Ni levels found in the general population. The tentative reference value for serum Ni was 0.466 +/- 0.160 ng mL(-1) with a related interval between 0.226 and 1.026 ng mL(-1). Copyright 2006 John Wiley & Sons, Ltd.

  12. Guidelines for the Review of Research Reactor Safety: Revised Edition. Reference Document for IAEA Integrated Safety Assessment of Research Reactors (INSARR)

    International Nuclear Information System (INIS)

    2013-01-01

    The Integrated Safety Assessment of Research Reactors (INSARR) is an IAEA safety review service available to Member States with the objective of supporting them in ensuring and enhancing the safety of their research reactors. This service consists of performing a comprehensive peer review and an assessment of the safety of the respective research reactor. The reviews are based on IAEA safety standards and on the provisions of the Code of Conduct on the Safety of Research Reactors. The INSARR can benefit both the operating organizations and the regulatory bodies of the requesting Member States, and can include new research reactors under design or operating research reactors, including those which are under a Project and Supply Agreement with the IAEA. The first IAEA safety evaluation of a research reactor operated by a Member State was completed in October 1959 and involved the Swiss 20 MW DIORIT research reactor. Since then, and in accordance with its programme on research reactor safety, the IAEA has conducted safety review missions in its Member States to enhance the safety of their research reactor facilities through the application of the Code of Conduct on the Safety of Research Reactors and the relevant IAEA safety standards. About 320 missions in 51 Member States were undertaken between 1972 and 2012. The INSARR missions and other limited scope safety review missions are conducted following the guidelines presented in this publication, which is a revision of Guidelines for the Review of Research Reactor Safety (IAEA Services Series No. 1), published in December 1997. This publication details those IAEA safety standards and guidance publications relevant to the safety of research reactors that have been revised or published since 1997. The purpose of this publication is to give guidance on the preparation, implementation, reporting and follow-up of safety review missions. It is also intended to be of assistance to operators and regulators in conducting

  13. Efficient Integration of Old and New Research Tools for Automating the Identification and Analysis of Seismic Reference Events

    Energy Technology Data Exchange (ETDEWEB)

    Wagner, Robert; Rivers, Wilmer

    2005-01-25

    any single computer program for seismic data analysis will not have all the capabilities needed to study reference events, since hese detailed studies will be highly specialized. It may be necessary to develop and test new algorithms, and then these special ;odes must be integrated with existing software to use their conventional data-processing routines. We have investigated two neans of establishing communications between the legacy and new codes: CORBA and XML/SOAP Web services. We have nvestigated making new Java code communicate with a legacy C-language program, geotool, running under Linux. Both methods vere successful, but both were difficult to implement. C programs on UNIX/Linux are poorly supported for Web services, compared vith the Java and .NET languages and platforms. Easier-to-use middleware will be required for scientists to construct distributed applications as easily as stand-alone ones. Considerable difficulty was encountered in modifying geotool, and this problem shows he need to use component-based user interfaces instead of large C-language codes where changes to one part of the program nay introduce side effects into other parts. We have nevertheless made bug fixes and enhancements to that legacy program, but t remains difficult to expand it through communications with external software.

  14. Comparative evaluation of bivalent malaria rapid diagnostic tests versus traditional methods in field with special reference to heat stability testing in Central India.

    Directory of Open Access Journals (Sweden)

    Neeru Singh

    Full Text Available Malaria presents a diagnostic challenge in areas where both Plasmodium falciparum and P.vivax are co-endemic. Bivalent Rapid Diagnostic tests (RDTs showed promise as diagnostic tools for P.falciparum and P.vivax. To assist national malaria control programme in the selection of RDTs, commercially available seven malaria RDTs were evaluated in terms of their performance with special reference to heat stability.This study was undertaken in four forested districts of central India (July, 2011- March, 2012. All RDTs were tested simultaneously in field along with microscopy as gold standard. These RDTs were stored in their original packing at 25°C before transport to the field or they were stored at 35°C and 45°C upto 100 days for testing the performance of RDTs at high temperature. In all 2841 patients with fever were screened for malaria of which 26% were positive for P.falciparum, and 17% for P.vivax. The highest sensitivity of any RDT for P.falciparum was 98% (95% CI; 95.9-98.8 and lowest sensitivity was 76% (95% CI; 71.7-79.6. For P.vivax highest and lowest sensitivity for any RDT was 80% (95% CI; 94.9 - 83.9 and 20% (95% CI; 15.6-24.5 respectively. Heat stability experiments showed that most RDTs for P.falciparum showed high sensitivity at 45°C upto 90 days. While for P.vivax only two RDTs maintained good sensitivity upto day 90 when compared with RDTs kept at room temperature. Agreement between observers was excellent for positive and negative readings for both P.falciparum and P.vivax (Kappa >0.6-0.9.This is first field evaluation of RDTs regarding their temperature stability. Although RDTs are useful as diagnostic tool for P.falciparum and P.vivax even at high temperature, the quality of RDTs should be regulated and monitored more closely.

  15. A new high-quality set of singly (H-2) and doubly (H-2 and O-18) stable isotope labeled reference waters for biomedical and other isotope-labeled research

    NARCIS (Netherlands)

    Faghihi, V.; Verstappen-Dumoulin, B. M. A. A.; Jansen, H. G.; van Dijk, G.; Aerts-Bijma, A. T.; Kerstel, E. R. T.; Groening, M.; Meijer, H. A. J.

    2015-01-01

    RATIONALE: Research using water with enriched levels of the rare stable isotopes of hydrogen and/or oxygen requires well-characterized enriched reference waters. The International Atomic Energy Agency (IAEA) did have such reference waters available, but these are now exhausted. New reference waters

  16. The Geopotential Research Mission - Mapping the near earth gravity and magnetic fields

    Science.gov (United States)

    Taylor, P. T.; Keating, T.; Smith, D. E.; Langel, R. A.; Schnetzler, C. C.; Kahn, W. D.

    1983-01-01

    The Geopotential Research Mission (GRM), NASA's low-level satellite system designed to measure the gravity and magnetic fields of the earth, and its objectives are described. The GRM will consist of two, Shuttle launched, satellite systems (300 km apart) that will operate simultaneously at a 160 km circular-polar orbit for six months. Current mission goals include mapping the global geoid to 10 cm, measuring gravity-field anomalies to 2 mgal with a spatial resolution of 100 km, detecting crustal magnetic anomalies of 100 km wavelength with 1 nT accuracy, measuring the vectors components to + or - 5 arc sec and 5 nT, and computing the main dipole or core field to 5 nT with a 2 nT/year secular variation detection. Resource analysis and exploration geology are additional applications considered.

  17. French research in the field of nuclear agronomy; Les recherches francaises en agronomie nucleaire

    Energy Technology Data Exchange (ETDEWEB)

    Guerin De Montgareuil, P. [Commissariat a l' Energie Atomique, Cadarache (France). Centre d' Etudes Nucleaires

    1964-07-01

    This report presents a survey of the most important work in the field of nuclear agronomy carried out in France since the second international conference, ranging from pure research to the most direct application. As the programmes develop, so to an ever decreasing degree does this differentiation cover the distinction made in the report between the biological radiations effects and the other uses of nuclear techniques. Thus research on agricultural radio-genetics is carried on in two directions: from the theoretical and methodological angle, with comparative studies of the action of various types of radiation, the influence of dose rate and temperature, the action of chemical mutation agents, the production of chimera by gamma irradiation; and on the practical side, leading to the creation of new, hardier or earlier varieties (rice, millet, ground-nuts). Problems of pest destruction (eradication) and the preservation of foodstuffs by irradiation are also tackled by widely varied means and for totally different purposes. One operation consisting of a simple irradiation (moist seeds, potatoes...) will sometimes be associated with original studies of a biochemical or microbiological nature (for example: decomposition of starch, glucide metabolism of irradiated tubers, radiation resistance of yeasts). The nuclear technique side is represented mainly by radioisotopes (carbon 14, phosphorus 32, sulphur 35, calcium 45, potassium 42, copper 64, gold 198) and stable isotopes analysed by mass spectrometer (nitrogen 15, oxygen 18) or by neutron activation (boron 10). The studies mentioned refer to problems on different levels concerning plant physiology, agrology, agricultural entomology and zootechny. Results obtained from measurements of the humidity (neutron thermalization) and density (gamma diffusion) of a soil are also given. Numerous organisations take part in these various research programmes, each according to its speciality: cooperative private enterprise

  18. French research in the field of nuclear agronomy; Les recherches francaises en agronomie nucleaire

    Energy Technology Data Exchange (ETDEWEB)

    Guerin De Montgareuil, P [Commissariat a l' Energie Atomique, Cadarache (France). Centre d' Etudes Nucleaires

    1964-07-01

    This report presents a survey of the most important work in the field of nuclear agronomy carried out in France since the second international conference, ranging from pure research to the most direct application. As the programmes develop, so to an ever decreasing degree does this differentiation cover the distinction made in the report between the biological radiations effects and the other uses of nuclear techniques. Thus research on agricultural radio-genetics is carried on in two directions: from the theoretical and methodological angle, with comparative studies of the action of various types of radiation, the influence of dose rate and temperature, the action of chemical mutation agents, the production of chimera by gamma irradiation; and on the practical side, leading to the creation of new, hardier or earlier varieties (rice, millet, ground-nuts). Problems of pest destruction (eradication) and the preservation of foodstuffs by irradiation are also tackled by widely varied means and for totally different purposes. One operation consisting of a simple irradiation (moist seeds, potatoes...) will sometimes be associated with original studies of a biochemical or microbiological nature (for example: decomposition of starch, glucide metabolism of irradiated tubers, radiation resistance of yeasts). The nuclear technique side is represented mainly by radioisotopes (carbon 14, phosphorus 32, sulphur 35, calcium 45, potassium 42, copper 64, gold 198) and stable isotopes analysed by mass spectrometer (nitrogen 15, oxygen 18) or by neutron activation (boron 10). The studies mentioned refer to problems on different levels concerning plant physiology, agrology, agricultural entomology and zootechny. Results obtained from measurements of the humidity (neutron thermalization) and density (gamma diffusion) of a soil are also given. Numerous organisations take part in these various research programmes, each according to its speciality: cooperative private enterprise

  19. Identifying appropriate reference data models for comparative effectiveness research (CER) studies based on data from clinical information systems.

    Science.gov (United States)

    Ogunyemi, Omolola I; Meeker, Daniella; Kim, Hyeon-Eui; Ashish, Naveen; Farzaneh, Seena; Boxwala, Aziz

    2013-08-01

    The need for a common format for electronic exchange of clinical data prompted federal endorsement of applicable standards. However, despite obvious similarities, a consensus standard has not yet been selected in the comparative effectiveness research (CER) community. Using qualitative metrics for data retrieval and information loss across a variety of CER topic areas, we compare several existing models from a representative sample of organizations associated with clinical research: the Observational Medical Outcomes Partnership (OMOP), Biomedical Research Integrated Domain Group, the Clinical Data Interchange Standards Consortium, and the US Food and Drug Administration. While the models examined captured a majority of the data elements that are useful for CER studies, data elements related to insurance benefit design and plans were most detailed in OMOP's CDM version 4.0. Standardized vocabularies that facilitate semantic interoperability were included in the OMOP and US Food and Drug Administration Mini-Sentinel data models, but are left to the discretion of the end-user in Biomedical Research Integrated Domain Group and Analysis Data Model, limiting reuse opportunities. Among the challenges we encountered was the need to model data specific to a local setting. This was handled by extending the standard data models. We found that the Common Data Model from the OMOP met the broadest complement of CER objectives. Minimal information loss occurred in mapping data from institution-specific data warehouses onto the data models from the standards we assessed. However, to support certain scenarios, we found a need to enhance existing data dictionaries with local, institution-specific information.

  20. Research within the coordinated programme on isotope-aided micronutrient studies in rice production with special reference to zinc deficiencies

    International Nuclear Information System (INIS)

    Rosales, C.M.

    1980-07-01

    An extensive survey identified 500,000 ha of soil in the Philippines as being potentially Zn-deficient for rice production. Isotope-aided laboratory, greenhouse, and field experiments were conducted to identify the most efficient methods of supplying fertilizer Zn to flooded rice. The application of 5 kg Zn/ha as ZnSO 4 effectively corrected a Zn deficiency and increased rice yield and Zn uptake for three successive growing seasons. No further increases were noted with higher rates of Zn application. Fertilizer ZnSO 4 was equally effective when mixed with the soil, combined with urea fertilizers, or surface-applied at or two weeks after transplanting the rice. Mine tailings were also shown to be an effective source of Zn. Mixing organic compost with the ZnSO 4 decreased the percent Zn derived from the fertilizer and the rice yield. 65 Zn-labelled ZnSO 4 was used

  1. Contributions from assited human reproduction techniques' socio-legal research to the legislative field

    Directory of Open Access Journals (Sweden)

    Marisa Herrera

    2017-03-01

    Full Text Available This paper’s intention is to share some of the main results of two field-based research projects regarding assisted human reproduction practices in Argentina. Both projects have been developed in a dynamic legislative context involving medical coverage regulation, parentage determination and the right to know one's origins for children born with third party genetic material. Also, in this context, the Draft Civil and Commercial Code reform introduced two figures that were then removed in the parliamentary debate: post mortem fertilization and surrogate motherhood. All these issues concerning the use of assisted human reproduction challenge the legal field and are addressed in these research projects, one of them more from an explorative perspective and the other from a qualitative one. Therefore, this article aims to introduce some of the measured variables and the findings obtained to serve as relevant contributions to achieve a more appropriate legislation according with the medical and social reality.

  2. Research into the field of art. Introduction of a case and levels of anchoring

    Directory of Open Access Journals (Sweden)

    Nelida Guadalupe Arqueros

    2015-12-01

    Full Text Available Many times in the research on the field of art the terms are ambiguous if they are not specified. We go through the distinction between ontological questions (types of object of investigations, epistemological (produced knowledge and methodological itself (discussion about the links with social science. At the same time, we draw a distinction between the research in the field of art and the artistic research itself. Also in the artistic research, we deal with the meaning of one type of questioning creative aesthetic in the investigation of new languages and modalities of art works. This work tries to be an excuse for, presenting an ongoing exploration, inside the house/museum El fogón de los arrieros, we could update briefly a debate about two linked conceptions; the artistic research and the investigation about artistic objects. Moreover, risking and an approaching proposal with data matrix to stratify the levels of analysis leaving questions for future considerations that contains the features of the theoretical and practical investigation about arts

  3. Persistent Identifiers for Field Expeditions: A Next Step for the US Oceanographic Research Fleet

    Science.gov (United States)

    Arko, Robert; Carbotte, Suzanne; Chandler, Cynthia; Smith, Shawn; Stocks, Karen

    2016-04-01

    Oceanographic research cruises are complex affairs, typically requiring an extensive effort to secure the funding, plan the experiment, and mobilize the field party. Yet cruises are not typically published online as first-class digital objects with persistent, citable identifiers linked to the scientific literature. The Rolling Deck to Repository (R2R; info@rvdata.us) program maintains a master catalog of oceanographic cruises for the United States research fleet, currently documenting over 6,000 expeditions on 37 active and retired vessels. In 2015, R2R started routinely publishing a Digital Object Identifier (DOI) for each completed cruise. Cruise DOIs, in turn, are linked to related persistent identifiers where available including the Open Researcher and Contributor ID (ORCID) for members of the science party, the International Geo Sample Number (IGSN) for physical specimens collected during the cruise, the Open Funder Registry (FundRef) codes that supported the experiment, and additional DOIs for datasets, journal articles, and other products resulting from the cruise. Publishing a persistent identifier for each field expedition will facilitate interoperability between the many different repositories that hold research products from cruises; will provide credit to the investigators who secured the funding and carried out the experiment; and will facilitate the gathering of fleet-wide altmetrics that demonstrate the broad impact of oceanographic research.

  4. Multi-Disciplinary Research Experiences Integrated with Industry –Field Experiences

    Directory of Open Access Journals (Sweden)

    Suzanne Lunsford

    2015-10-01

    Full Text Available The purpose of this environmentally inquiry-based lab was to allow the students to engage into real-world concepts that integrate industry setting (Ohio Aggregate Industrial Mineral Association with the academia setting. Our students are engaged into a field trip where mining occurs to start the problem based learning of how the heavy metals leak in the mining process. These heavy metals such as lead and indium in the groundwater are a serious concern for the environment (Environmental Protection Agency from the mining process. The field experiences at the mining process assist in building our students interest in developing sensors to detect heavy metals of concern such as lead and indium simultaneously by a unique electrochemistry technique called Square Wave Anodic Stripping Voltammetry (SWASV. The field experience assists building the students interest in real –world application and what qualities do they want the electrochemical sensor to possess to be successful for real world usage. During the field trip the students are engaged into learning novel instrumentation such as an SEM (Scanning Electron Microscope to study the working electrode sensor developed to understand the sensor surface morphology properties better as well. The integration of industry setting with academia has been a positive experience for our students that has allowed their understanding of real-world science research needs to succeed in an industrial setting of research.

  5. Recent Research Results in the Field of Electric Drives and Mechatronics

    Directory of Open Access Journals (Sweden)

    Jan Vittek

    2003-01-01

    Full Text Available The paper presents an overview of research results achieved in the field of Electrical Drives and Mechatronics for the period of three years. The achieved outputs are formed into three individual parts. In the field of Electric Drives the most significant outputs have been achieved in the development of a new control algorithms for a.c. drives under general name 'Forced Dynamics Control' , in improvement of shaft sensorless control methods and in implementation of developed algorithms via digital signal processors. In the field of Electric Traction the most important results have been gained in optimization of power of traction vehicles andat development of diagnostic systems for evaluation of technical conditions of traction devices. In the field of Electric Machines the most important outputs have been achieved in the research of modern electronically commutated electrical machines, their performances in steady and transient states, new design method for their configuration and new methods for automatic parameters identification. In the end the list of the most important publications for all three parts is enclosed.

  6. Status of the French research in the field of molten salt nuclear reactors

    International Nuclear Information System (INIS)

    Hery, M.; Israel, M.; Fauger, P.; Lecocq, A.

    1977-01-01

    The research program of the CEA in the field of molten salt nuclear reactors has been concerned with MSBR type reactors (Molten Salt Breeder Reactor). The papers written after having performed the theoretical analysis are entitled: core, circuits, chemistry and economy; they include some criticisms and suggestions. The experimental studies consisted in: graphite studies, chemical studies of the salt, metallic materials, the salt loop and the lead loop [fr

  7. Power supplies and equipment for military field research: lessons from the British Service Dhaulagiri Research Expedition 2016.

    Science.gov (United States)

    Howard, Matt; Bakker-Dyos, J; Gallagher, L; O'Hara, J P; Woods, D; Mellor, A

    2018-02-01

    The British Service Dhaulagiri Research Expedition (BSDMRE) took place from 27 March to 31 May 2016. The expedition involved 129 personnel, with voluntary participation in nine different study protocols. Studies were conducted in three research camps established at 3600, 4600 and 5140 m and involved taking and storing blood samples, cardiac echocardiography and investigations involving a balance plate. Research in this remote environment requires careful planning in order to provide a robust and resilient power plan. In this paper we aim to report the rationale for the choices we made in terms of power supply, the equipment used and potential military applicability. This is a descriptive account from the expedition members involved in planning and conducting the medical research. Power calculations were used to determine estimates of requirement prior to the expedition. The primary sources used to generate power were internal combustion engine (via petrol fuelled electric generators) and solar panels. Having been generated, power was stored using lithium-ion batteries. Special consideration was given to the storage of samples taken in the field, for which electric freezers and dry shippers were used. All equipment used functioned well during the expedition, with the challenges of altitude, temperature and transport all overcome due to extensive prior planning. Power was successfully generated, stored and delivered during the BSDMRE, allowing extensive medical research to be undertaken. The challenges faced and overcome are directly applicable to delivering military medical care in austere environments, and lessons learnt can help with the planning and delivery of future operations, training exercises or expeditions. © Article author(s) (or their employer(s) unless otherwise stated in the text of the article) 2018. All rights reserved. No commercial use is permitted unless otherwise expressly granted.

  8. Reference Assessment

    Science.gov (United States)

    Bivens-Tatum, Wayne

    2006-01-01

    This article presents interesting articles that explore several different areas of reference assessment, including practical case studies and theoretical articles that address a range of issues such as librarian behavior, patron satisfaction, virtual reference, or evaluation design. They include: (1) "Evaluating the Quality of a Chat Service"…

  9. Including Media in Field Research and Becoming Part of the Science Media

    Science.gov (United States)

    Pelto, M. S.

    2015-12-01

    There are two primary strategies that I have pursued over the last decade to engage the media, policy makers, and public; after two decades of typical scientific publication methods. An effective method to engage the media with our ongoing 32 year glacier field research program has been to invite media members to join us in the field. From climate videographers to traditional reporters we have had a member of the media with us in nine of the last ten field seasons; two in 2015. The resulting stories have led to several awards for the journalists and an ongoing relationship with our research program. The second part of this science research communication strategy is to have readily available material on specific topics for the media to utilize; this requires social media outreach. The primary outlet media find is the AGU Blog: From a Glacier's Perspective. This blog pubishes two articles a week on a specific glacier's response to climate change. The blog yields on average a media contact on every fourth blog post in 2015. The contacts revolve around specific local glacier information published on the blog. The goal of each blog post is to tell a story about how each glacier is impacted by climate change.

  10. Quantitative sensory testing in the German Research Network on Neuropathic Pain (DFNS): reference data for the trunk and application in patients with chronic postherpetic neuralgia.

    Science.gov (United States)

    Pfau, Doreen B; Krumova, Elena K; Treede, Rolf-Detlef; Baron, Ralf; Toelle, Thomas; Birklein, Frank; Eich, Wolfgang; Geber, Christian; Gerhardt, Andreas; Weiss, Thomas; Magerl, Walter; Maier, Christoph

    2014-05-01

    Age- and gender-matched reference values are essential for the clinical use of quantitative sensory testing (QST). To extend the standard test sites for QST-according to the German Research Network on Neuropathic Pain-to the trunk, we collected QST profiles on the back in 162 healthy subjects. Sensory profiles for standard test sites were within normal interlaboratory differences. QST revealed lower sensitivity on the upper back than the hand, and higher sensitivity on the lower back than the foot, but no systematic differences between these trunk sites. Age effects were significant for most parameters. Females exhibited lower pressure pain thresholds (PPT) than males, which was the only significant gender difference. Values outside the 95% confidence interval of healthy subjects (considered abnormal) required temperature changes of >3.3-8.2 °C for thermal detection. For cold pain thresholds, confidence intervals extended mostly beyond safety cutoffs, hence only relative reference data (left-right differences, hand-trunk differences) were sufficiently sensitive. For mechanical detection and pain thresholds, left-right differences were 1.5-2.3 times more sensitive than absolute reference data. The most sensitive parameter was PPT, where already side-to-side differences >35% were abnormal. Compared to trunk reference data, patients with postherpetic neuralgia exhibited thermal and tactile deficits and dynamic mechanical allodynia, mostly without reduced mechanical pain thresholds. This pattern deviates from other types of neuropathic pain. QST reference data for the trunk will also be useful for patients with postthoracotomy pain or chronic back pain. Copyright © 2014 International Association for the Study of Pain. Published by Elsevier B.V. All rights reserved.

  11. Comparison of sexual satisfactory and depression between sterile and unsterile couples refer to Alzahra research and education center, Tabriz

    Directory of Open Access Journals (Sweden)

    nilofar Satarzadeh

    2007-09-01

    Full Text Available Satarzadeh N1, Bahrami N2, Ranjbar Koch-saraei F3, Ghojazadeh M4 1. Instructor, Department of nursing, Faculty of nursing and midwifery, Tabriz University of medical sciences 2. Instructor, Department of parastari, Faculty of nursing and midwifery,Ghazvin University of medical sciences 3. Assistant professor, Department of psychology medicine , Faculty of medicine , Tabriz University of medical sciences 4. Assistant professor, Department of physiology , Faculty of medicine , Tabriz University of medical sciences Abstract Background: Some studies show the depression, stress, low self-esteem, sexual dissatisfaction may be psychological outcomes of infertility. Depression and sexual satisfaction play a significant role in the life of infertile couples, their infertility treatment follow- up and in their hopefulness for the future. The present study was carried out to determine and comparing the depression and sexual satisfaction among infertile and fertile couples referring to Alzahra educational center in Tabriz. Materials and methods: This is a comparative- descriptive study in which depression and sexual satisfaction rate were studied and analyzed in 150 infertile versus 150 fertile couples. Sample selection was randomized. Data gathering was done by using questionnaire including 3 parts( Demographic characteristics of couples, Beck Depression Inventory and Larson standard questionnaire for determining sexual satisfaction. All data gathered for this study was analyzed by using descriptive statistically methods, mean difference tests and also relation test. Results: The BDI mean difference between infertile and fertile men and between infertile and fertile women was significant (p=0.011,t=2.54in men & p<0.005, t=3.68in women. But the difference between sexual satisfaction mean difference in infertile and fertile men and between infertile and fertile women was not statically significant (p=0.707, t=0.377 in men & p=0.370, t=0.898 in women. Mean

  12. The Association between Four Citation Metrics and Peer Rankings of Research Influence of Australian Researchers in Six Fields of Public Health

    Science.gov (United States)

    Derrick, Gemma Elizabeth; Haynes, Abby; Chapman, Simon; Hall, Wayne D.

    2011-01-01

    Doubt about the relevance, appropriateness and transparency of peer review has promoted the use of citation metrics as a viable adjunct or alternative in the assessment of research impact. It is also commonly acknowledged that research metrics will not replace peer review unless they are shown to correspond with the assessment of peers. This paper evaluates the relationship between researchers' influence as evaluated by their peers and various citation metrics representing different aspects of research output in 6 fields of public health in Australia. For four fields, the results showed a modest positive correlation between different research metrics and peer assessments of research influence. However, for two fields, tobacco and injury, negative or no correlations were found. This suggests a peer understanding of research influence within these fields differed from visibility in the mainstream, peer-reviewed scientific literature. This research therefore recommends the use of both peer review and metrics in a combined approach in assessing research influence. Future research evaluation frameworks intent on incorporating metrics should first analyse each field closely to determine what measures of research influence are valued highly by members of that research community. This will aid the development of comprehensive and relevant frameworks with which to fairly and transparently distribute research funds or approve promotion applications. PMID:21494691

  13. The association between four citation metrics and peer rankings of research influence of Australian researchers in six fields of public health.

    Directory of Open Access Journals (Sweden)

    Gemma Elizabeth Derrick

    Full Text Available Doubt about the relevance, appropriateness and transparency of peer review has promoted the use of citation metrics as a viable adjunct or alternative in the assessment of research impact. It is also commonly acknowledged that research metrics will not replace peer review unless they are shown to correspond with the assessment of peers. This paper evaluates the relationship between researchers' influence as evaluated by their peers and various citation metrics representing different aspects of research output in 6 fields of public health in Australia. For four fields, the results showed a modest positive correlation between different research metrics and peer assessments of research influence. However, for two fields, tobacco and injury, negative or no correlations were found. This suggests a peer understanding of research influence within these fields differed from visibility in the mainstream, peer-reviewed scientific literature. This research therefore recommends the use of both peer review and metrics in a combined approach in assessing research influence. Future research evaluation frameworks intent on incorporating metrics should first analyse each field closely to determine what measures of research influence are valued highly by members of that research community. This will aid the development of comprehensive and relevant frameworks with which to fairly and transparently distribute research funds or approve promotion applications.

  14. The association between four citation metrics and peer rankings of research influence of Australian researchers in six fields of public health.

    Science.gov (United States)

    Derrick, Gemma Elizabeth; Haynes, Abby; Chapman, Simon; Hall, Wayne D

    2011-04-06

    Doubt about the relevance, appropriateness and transparency of peer review has promoted the use of citation metrics as a viable adjunct or alternative in the assessment of research impact. It is also commonly acknowledged that research metrics will not replace peer review unless they are shown to correspond with the assessment of peers. This paper evaluates the relationship between researchers' influence as evaluated by their peers and various citation metrics representing different aspects of research output in 6 fields of public health in Australia. For four fields, the results showed a modest positive correlation between different research metrics and peer assessments of research influence. However, for two fields, tobacco and injury, negative or no correlations were found. This suggests a peer understanding of research influence within these fields differed from visibility in the mainstream, peer-reviewed scientific literature. This research therefore recommends the use of both peer review and metrics in a combined approach in assessing research influence. Future research evaluation frameworks intent on incorporating metrics should first analyse each field closely to determine what measures of research influence are valued highly by members of that research community. This will aid the development of comprehensive and relevant frameworks with which to fairly and transparently distribute research funds or approve promotion applications.

  15. Considering a frame of reference for physical activity research related to the cardiometabolic risk profile in schizophrenia.

    Science.gov (United States)

    Vancampfort, Davy; Knapen, Jan; Probst, Michel; van Winkel, Ruud; Deckx, Seppe; Maurissen, Katrien; Peuskens, Joseph; De Hert, Marc

    2010-05-30

    This article reviews evidence that researchers and mental health service providers need to take into account four modifiable factors that affect the prevalence of the metabolic syndrome in people with schizophrenia: (a) physical activity as part of a health-related lifestyle, (b) physical fitness, (c) mental health status and (d) antipsychotic medication. The implementation of physical activity in order to prevent and treat cardiometabolic risk factors in people with schizophrenia is discussed. English language articles published until July 2009 were identified by PubMed, CINAHL, PsychINFO, and Cochrane Central Register of Controlled Trials. The search terms schizophrenia and metabolic syndrome, physical activity, health, fitness, and lifestyle were used. Physical activity interventions result in positive effects on metabolic outcomes, physical fitness, health-related behavior and mental health. Considering present knowledge, physical therapists should take into account the emotional (negative symptoms, self-esteem, self-efficacy, and stress) and physiological (cardiometabolic parameters) components of mental illness when offering physical activity interventions. The physical activity stimulus should be adapted to the individual's physical fitness level and the side effects of the antipsychotic medications. More research is needed to assist in the practical development of effective evidence-based preventive and curative strategies in psychiatric services for metabolic syndrome in persons with schizophrenia. Copyright 2010 Elsevier Ireland Ltd. All rights reserved.

  16. Preliminary thoughts on the relevance of the research field of cognition for Practical Theology

    Directory of Open Access Journals (Sweden)

    Ferdi P. Kruger

    2016-03-01

    Full Text Available In this research from the vantage point of Practical Theology, the author focusses on the importance and the possible value of the concept of cognition for further research. The philosophical roots of the concepts of knowledge and understanding are highlighted in a qualitative manner by means of a short selection from the insights of philosophers from the era of the Greek Philosophy to the nineteenth century. The insights of Plato, Aristotle, Thomas Aquinas, Descartes and Kant are utilised. The purpose was to indicate the importance of the concepts of knowing and cognition from an early stage. Research from the field of cognitive science also received attention in this research. The purpose of this discussion is to indicate that cognition is not a mere intellectual activity. Cognition is important in the processes of perspective-making and moral choices. Cognitive distortions could possibly endanger people�s ability to have the right cognition about people, events and life itself. The concept of phronesis, as the concept that comes the nearest to the essence of cognition, is also investigated from the vantage point of Philippians 2:5 and Romans 12:3. Wisdom thinking is really important in research on the acts of people from a practical theological vantage point. Cognition must be regarded as people�s attempt to make sense out what they already know and also out of what they are observing. In the final part of the article, fields for possible further investigation are highlighted in order to make the statement that practical theologians can consider the fact to reclaim the field of investigation on cognition in further research. The importance of cognition for liturgy, homiletics, pastoral care and youth ministry is indicated.Intradisciplinary and/or interdisciplinary implications: This article is undertaken from a practical theological vantage point in order to highlight the importance of the concept of cognition for further research. In

  17. Rehabilitation research at the National Institutes of Health moving the field forward (executive summary).

    Science.gov (United States)

    Frontera, Walter R; Bean, Jonathan F; Damiano, Diane; Ehrlich-Jones, Linda; Fried-Oken, Melanie; Jette, Alan; Jung, Ranu; Lieber, Rick L; Malec, James F; Mueller, Michael J; Ottenbacher, Kenneth J; Tansey, Keith E; Thompson, Aiko

    2017-08-01

    Approximately 53 million Americans live with a disability. For decades, the National Institutes of Health (NIH) has been conducting and supporting research to discover new ways to minimize disability and enhance the quality of life of people with disabilities. After the passage of the Americans With Disabilities Act, NIH established the National Center for Medical Rehabilitation Research, with the goal of developing and implementing a rehabilitation research agenda. Currently, 17 institutes and centers at NIH invest more than $500 million per year in rehabilitation research. Recently, the director of NIH, Francis Collins, appointed a Blue Ribbon Panel to evaluate the status of rehabilitation research across institutes and centers. As a follow-up to the work of that panel, NIH recently organized a conference, "Rehabilitation Research at NIH: Moving the Field Forward." This report is a summary of the discussions and proposals that will help guide rehabilitation research at NIH in the near future. (PsycINFO Database Record (c) 2017 APA, all rights reserved).

  18. Rehabilitation Research at the National Institutes of Health: Moving the Field Forward (Executive Summary).

    Science.gov (United States)

    Frontera, Walter R; Bean, Jonathan F; Damiano, Diane; Ehrlich-Jones, Linda; Fried-Oken, Melanie; Jette, Alan; Jung, Ranu; Lieber, Rick L; Malec, James F; Mueller, Michael J; Ottenbacher, Kenneth J; Tansey, Keith E; Thompson, Aiko

    Approximately 53 million Americans live with a disability. For decades, the National Institutes of Health (NIH) has been conducting and supporting research to discover new ways to minimize disability and enhance the quality of life of people with disabilities. After the passage of the Americans With Disabilities Act, NIH established the National Center for Medical Rehabilitation Research, with the goal of developing and implementing a rehabilitation research agenda. Currently, 17 institutes and centers at NIH invest more than $500 million per year in rehabilitation research. Recently, the director of NIH, Francis Collins, appointed a Blue Ribbon Panel to evaluate the status of rehabilitation research across institutes and centers. As a follow-up to the work of that panel, NIH recently organized a conference, "Rehabilitation Research at NIH: Moving the Field Forward." This report is a summary of the discussions and proposals that will help guide rehabilitation research at NIH in the near future. Copyright © 2017 by The Author(s). Published by Wolters Kluwer Health, Inc. This is an open access article distributed under the terms of the Creative Commons Attribution-Non Commercial-No Derivatives License 4.0 (CCBY-NC-ND), where it is permissible to download and share the work provided it is properly cited. The work cannot be changed in any way or used commercially without permission from the journal.

  19. Equality adds quality: On upgrading higher education and research in the field of law

    Directory of Open Access Journals (Sweden)

    Baer Susanne

    2017-01-01

    Full Text Available Much has been attempted, and many projects are still underway aimed at achieving equality in higher education and research. Today, the key argument to demand and support the integration of gender in academia is that equality is indeed about the quality on which academic work is supposed to be based. Although more or less national political, social and cultural contexts matter as much as academic environments, regarding higher education and research, the integration of gender into the field of law seems particularly interesting. Faculties of law enjoy a certain standing and status, are closely connected to power and politics, and are likely to feature resistance to equality efforts, both in the law itself and in the curriculum and research agenda. However, a multidimensional, intersectional gender analysis helps to reframe cases and doctrines, rulings and regulations far beyond the law that evidently affects women, which the headscarf controversies illustrate. In addition to gender competence, team diversity is a procedural device for success, and non-discrimination is a key requirement when diversity is meant to work. After all, such efforts - to expose bias and educate about gender in an academic field, to insist and integrate it continuously, and to not only demand but also do it - produce quality. Thus, gender equality is crucial for the achievement of the best possible results in higher education and research.

  20. On the bibliometric coordinates of four different research fields in Geography.

    Science.gov (United States)

    Gorraiz, Juan; Gumpenberger, Christian; Glade, Thomas

    This study is a bibliometric analysis of the highly complex research discipline Geography. In order to identify the most popular and most cited publication channels, to reveal publication strategies, and to analyse the discipline's coverage within publications, the three main data sources for citation analyses, namely Web of Science, Scopus and Google Scholar, have been utilized. This study is based on publication data collected for four individual evaluation exercises performed at the University of Vienna and related to four different subfields: Geoecology, Social and Economic Geography, Demography and Population Geography, and Economic Geography. The results show very heterogeneous and individual publication strategies, even in the same research fields. Monographs, journal articles and book chapters are the most cited document types. Differences between research fields more related to the natural sciences than to the social sciences are clearly visible, but less considerable when taking into account the higher number of co-authors. General publication strategies seem to be established for both natural science and social sciences, however, with significant differences. While in natural science mainly publications in international peer-reviewed scientific journals matter, the focus in social sciences is rather on book chapters, reports and monographs. Although an "iceberg citation model" is suggested, citation analyses for monographs, book chapters and reports should be conducted separately and should include complementary data sources, such as Google Scholar, in order to enhance the coverage and to improve the quality of the visibility and impact analyses. This is particularly important for social sciences related research within Geography.